CIRCUIT BREAKER LOCKING DEVICE

Description

TECHNICAL FIELD

[0001] The invention relates to the field of low-voltage apparatuses, in particular to a circuit breaker with a locking device.

BACKGROUND ART

[0002] There is a need for a circuit breaker to ensure that a switch should not be switched on after a tripping trouble until the circuit breaker is unlocked artificially after the trouble is removed, in a high-current power consumption site. But some circuit breakers at present are not provided with effective locking devices, such that a mechanism can store energy at once after the circuit breaker undergoes a tripping trouble, and therefore a switching-off semi-shaft pushes a pressing plate of a controller base backwards to ensure that the circuit breaker can be switched on. As thus, the safety of operation personnel and the safety of customer's power consumption equipment are affected when the circuit breaker is switched on after a system has a fault. Meanwhile, a part of existing circuit breakers are also provided with locking devices, but because the locking devices are relatively complicated in structure, the stability of locking parts are reduced, and therefore the reliability of the locking devices is reduced. Such a circuit breaker is known e.g. from the document US 5 982 258 A.

SUMMARY OF THE INVENTION

[0003] An objective of the present invention is to overcome the defects of the prior art and provide a circuit breaker with a locking device, which is firm in locking structure, stable in action process and simple in mechanical structure.

[0004] To achieve said objective, the present invention adopts the following technical solutions:
a circuit breaker with a locking device, wherein the locking device comprises an executing lever 1 and a pressing plate 2, wherein a hole shaft of the executing lever 1 is rotatably mounted in a base 3 of a circuit breaker; an elastic piece 111 is arranged between one end of the executing lever 1 and the base 3, and the other end of the executing lever 1 is provided with a locking end 120 which can be connected with a locking portion 210 at one side of the pressing plate 2 in a locking manner. The pressing plate 2 is mounted in the base 3 and can rotatably oscillate relative to the base 3. The locking portion 210 at one side of the pressing plate 2 comprises an unlocking surface 211 and a locking surface 212 which correspond to the locking end 120 respectively and are adjacent to each other, and a sliding step 213 is arranged between the unlocking surface 211 and the locking surface 212; a contact portion 220 which is in contact connection with a circuit breaker operating mechanism is arranged at the other side of the pressing plate 2. A magnetic actuator 5 which can drive the pressing plate 2 to oscillate is also arranged above the pressing plate 2 correspondingly. The magnetic actuator 5 can push the pressing plate 2 to oscillate when the circuit breaker has a fault, such that the locking end 120 arranged inside the unlocking surface 211 slides into the locking surface 212 along the sliding step 213 under the energy-releasing acting force of the elastic piece 111 so as to lock the pressing plate 2. Meanwhile, the contact portion 220 capable of oscillating with the pressing plate 2 can limit the operating mechanism to prevent the operating mechanism from resetting.

[0005] Further, the locking end 120 comprises a first acting surface 121 and a second acting surface 122 which are of a V-shaped structure and are connected to each other; the second acting surface 122 is connected with the end part of the executing lever 1 and parallel to the executing lever 1, and an acting end 123 formed at the junction of the first acting surface 121 and the second acting surface 122 can be in contact connection with the locking surface 212; the first acting surface 121 can be in obliquely contact connection with the corresponding side of the sliding step 213, and therefore a triangular structure can be formed by the locking surface 212, the first acting surface 121 and one side of the sliding step 213 in case of locking.

[0006] Further, a slope 213b which can be matched with and in contact connection with the first acting surface 121 is arranged at one side, corresponding to the first acting surface 121, of the sliding step 213, and an obtuse angle is formed between the slope 213b and the locking surface 212.

[0007] Further, a circular arc surface 213a which is in sliding contact with the bottom of the locking end 120 is arranged at the top of the sliding step 213.

[0008] Further, the pressing plate 2 is mounted on a support 4 in the base 3; a locking portion 210 and a contact portion 220 are formed by extending respectively from two sides of the pressing plate 2; a driving portion 240 corresponding to the magnetic actuator 5 is arranged in the middle of the pressing plate 2; a rotary mounting portion 230 also extends out from the driving portion 240; a mounting cone frustum 231 which can be rotatably connected with a hole shaft of the support 4 is arranged at each of two sides, corresponding to the pressing plate 2, of the rotary mounting portion 230; the magnetic actuator 5 can push the driving portion 240 when the circuit breaker has a fault, such that the pressing plate 2 can oscillate downwards along the mounting cone frustums 231 relative to the support 4.

[0009] Further, a reset spring 232 which can drive the pressing plate 2 back to an initial position is mounted on the mounting cone frustums 231, and two ends of the reset spring 232 are linked to the pressing plate 2 and the support 4 respectively.

[0010] Further, a reset driving end 110 corresponding to the elastic piece 111 and the locking end 120 corresponding to the pressing plate 2 are arranged at two ends of the executing lever 1 respectively, and the reset driving end 110 can drive the elastic piece 111 to store energy when the device is reset, such that the locking end 120 slides back to the unlocking surface 211 from the locking surface 212; a fulcrum mounting hole 130 which is used for being rotatably connected with a hole shaft on the side wall of the base 3 is also formed in the middle of the executing lever 1; a shaft pin 131 can be mounted inside the fulcrum mounting hole.

[0011] Further, the elastic piece 111 can be a spring arranged between the end part of the executing lever 1 and the base 3, and a cone frustum 112 for limiting and fixing the spring is arranged at the bottom of one end of the executing lever 1.

[0012] Further, the contact portion 220 is of an L-shaped structure and comprises a horizontal baffle 221 and a vertical baffle 222 which are perpendicularly connected to each other; the vertical baffle 222 is arranged perpendicularly on one side wall of the pressing plate 2, and the horizontal baffle 221 is parallel to the side surface of the pressing plate 2; the horizontal baffle 221 can oscillate with the rotation of the pressing plate 2, thereby preventing a switching-off semi-shaft of the operating mechanism from resetting to a switchable-on position.

[0013] Further, a baffle 214 corresponding to one side wall of the pressing plate 2 is also arranged on the locking portion 210, and a connecting baffle 215 is arranged between the end part, corresponding to the locking surface 212, of the baffle 214 and the side wall of the pressing plate 2; a groove structure 216 corresponding to the locking end 120 is formed jointly by the connecting baffle 215, the baffle 214, one side wall of the pressing plate 2 and one side wall of the sliding step 213.

[0014] The circuit breaker with the locking device of the invention realizes locking of the executing lever and the pressing plate to prevent the operating mechanism from resetting by means of the locking portion and the locking end, when the circuit breaker has a fault. And, the locking device is simple in mechanical structure, thereby improving the reliability and the stability of the locking process. Furthermore, the locking surface and the sliding step ensure that a stable and firm locking connection structure is formed between the locking end and the locking surface, and improve the firmness of the locking device.

BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 

Fig. 1 is a structural schematic drawing of the invention.

Fig. 2 is a structural schematic drawing of an executing lever of the invention.

Fig. 3 is a structural schematic drawing of a pressing plate of the invention;

Fig. 4 is a front structural schematic drawing of an initial state of the invention.

Fig. 5 is a partial structural cross-sectional view along an A-A direction inside an imaginary line of Fig. 4.

Fig. 6 is a front structural schematic drawing of a locking state of the invention.

Fig. 7 is a partial structural cross-sectional view along a B-B direction inside an imaginary line of Fig. 6.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] The specific embodiments of a circuit breaker with a locking device of the invention will be further illustrated as below in conjunction with the embodiments illustrated in Figs. 1-7. The circuit breaker with the locking device of the present invention is not limited to the description in the following embodiments.

[0017] According to the structural schematic drawing of the invention as illustrated in Fig. 1, the circuit breaker with the locking device of the invention, wherein the locking device comprises an executing lever 1 and a pressing plate 2, wherein a hole shaft of the executing lever 1 is rotatably mounted in a base 3 of a circuit breaker. An elastic piece 111 is arranged between one end of the executing lever 1 and the base 3, and the other end of the executing lever 1 is provided with a locking end 120 which can be connected with a locking portion 210 at one side of the pressing plate 2 in a locking manner. The pressing plate 2 is mounted in the base 3 and can rotatably oscillate relative to the base 3. As illustrated in Fig. 3, the locking portion 210 at one side of the pressing plate 2 comprises an unlocking surface 211 and a locking surface 212 which correspond to the locking end 120 respectively and are adjacent to each other, and a sliding step 213 is arranged between the unlocking surface 211 and the locking surface 212. A contact portion 220 which is in contact connection with a circuit breaker operating mechanism is arranged at the other side of the pressing plate 2. A magnetic actuator 5 which can drive the pressing plate 2 to oscillate is also arranged above the pressing plate 2 correspondingly. The magnetic actuator 5 can push the pressing plate 2 to oscillate when the circuit breaker has a fault, such that the locking end 120 arranged inside the unlocking surface 211 slides into the locking surface 212 along the sliding step 213 under the energy-releasing acting force of the elastic piece 111 so as to lock the pressing plate 2. Meanwhile, the contact portion 220 capable of oscillating with the pressing plate 2 can limit a switching-off semi-shaft of the operating mechanism from resetting to a highest position, i.e., a switchable-on position. Because the executing lever is adopted to lock the pressing plate, the switching-off semi-shaft of the operating mechanism cannot reset to a highest point to finish switching-on after the circuit breaker has a fault, and therefore a user can operate the circuit breaker to be switched on after searching for a fault and remove the fault, so that the safety of operation personnel and the safety of power supply equipment are ensured.

[0018] In particular, a support 4 capable of clamping and mounting the pressing plate 2 is also arranged in the base 3, the pressing plate 2 is rotatably mounted in the support 4 and corresponds to the magnetic actuator 5, and the magnetic actuator 5 can receive a controller tripping instruction, i.e., pushing the pressing plate 2 to rotatably oscillate relative to the support 4 when the circuit breaker has a fault, such that the locking end 120 is connected with the locking surface 212 in a locking manner. The support not only facilitates to assemble the locking device, but also provides a stable support when the pressing plate oscillates and rotates so as to improve the stability and reliability of the locking process.

[0019] According to the structural schematic drawing of the executing lever 1 of the invention as illustrated in Fig. 2, a reset driving end 110 corresponding to the elastic piece 111 and the locking end 120 corresponding to the pressing plate 2 are arranged at two ends of the executing lever 1 respectively. The locking end 120 comprises a first acting surface 121 and a second acting surface 122 which are of a V-shaped structure and are connected to each other. The second acting surface 122 is connected with the end part of the executing lever 1 and parallel to the executing lever 1, and an acting end 123 formed at the junction of the first acting surface 121 and the second acting surface 122 can be in contact connection with the locking surface 212. The first acting surface 121 can be in contact connection with the corresponding side of the sliding step 213, and therefore a triangular structure can be formed by the locking surface 212, the first acting surface 121 and one side of the sliding step 213 in case of locking. By means of the locking end having a V-shaped structure, when the executing lever locks the pressing plate, the stable triangular structure is formed by the locking end, the locking surface and the sliding step, such that the locked pressing plate is unlikely to shake, and therefore the stability of the locking device is improved. In particular, a circular arc surface 213a which facilitates the locking end 120 to slide to the locking surface 212 from the unlocking surface 211 can be arranged at the top of the sliding step 213. The first acting surface 121 having the V-shaped structure obliquely acts on and contacts with the sliding step 131, and therefore, the first acting surface 121 can be in contact connection with the circular arc surface 213a stably, without sliding, and therefore the stability of locking connection is ensured. The reset driving end 110 can drive the elastic piece 111 to store energy when the device is reset, and therefore the locking end 120 slides from the locking end 212 back to the unlocking surface 211. It is easily conceivable that the locking device is at a locking state after the circuit breaker has a fault, and under this case, the elastic piece 111 is at an energy-releasing state to provide an acting force under which the locking end 120 is in contact locking with the locking surface 212. When the locking device is reset after the fault is removed, the reset driving end 110 is pushed down in a manual manner, and under this case, the locking end 120 is moved to the unlocking surface 211, and the elastic piece 111 is at the energy-releasing state again.

[0020] A fulcrum mounting hole 130 which is used for being rotatably connected with a hole shaft on the side wall of the base 3 is also arranged in the middle of the executing lever 1, and a shaft pin 131 can be mounted inside the fulcrum mounting hole. The executing lever is stably and rotatably mounted to the side wall of the base, such that the stability of the locking end of the executing lever when the locking end is driven by the reset driving end is ensured, and the reliability of the executing lever in an oscillating action is improved. In particular, the elastic piece 111 can be a spring arranged between the end part of the executing lever 1 and the base 3, and a cone frustum 112 for limiting and fixing the spring is arranged at the bottom of one end of the executing lever 1. The spring is simple in structure and convenient to mount, such that the installation efficiency of the locking device is improved, and meanwhile the stability of the device during locking and resetting is ensured.

[0021] According to the structural schematic drawing of the pressing plate 2 of the invention as illustrated in Fig. 3, the pressing plate 2 is mounted on a support 4 in the base 3; a locking portion 210 and a contact portion 220 are formed by extending respectively from two sides of the pressing plate 2; a driving portion 240 corresponding to the magnetic actuator 5 is arranged in the middle of the pressing plate 2; a rotary mounting portion 230 also extends out from the driving portion 240; a mounting cone frustum 231 which can be rotatably connected with a hole shaft of the support 4 is arranged at each of two sides, corresponding to the pressing plate 2, of the rotary mounting portion 230; the magnetic actuator 5 can push the driving portion 240 when the circuit breaker has a fault, such that the pressing plate 2 can oscillate downwards along the mounting cone frustums 231 relative to the support 4. The pressing plate is simple in structural design and is mounted in the support of the base, so that the reliability of the pressing plate during rotatable oscillating is ensured. In particular, the locking portion 210 comprises an unlocking surface 211 and a locking surface 212 which are adjacent to each other, and a sliding step 213 is arranged between the unlocking surface 211 and the locking surface 212. In particular, a circular arc surface 213a which is in sliding contact with the bottom of the locking end 120 is arranged at the top of the sliding step 213. By means of the circular arc surface, the process of the locking end sliding to the locking surface from the unlocking surface is more easy and fluent to ensure that the action of the executing lever that locks the pressing plate cannot lose efficiency and improve the reliability of the device. In addition, a baffle 214 corresponding to one side wall of the pressing plate 2 is also arranged on the locking portion 210, and a connecting baffle 215 is arranged between the end part, corresponding to the locking surface 212, of the baffle 214 and the side wall of the pressing plate 2. A groove structure 216 corresponding to the locking end 120 is formed jointly by the connecting baffle 215, the baffle 214, one side wall of the pressing plate 2 and one side wall of the sliding step 213. The baffle can be used for positioning the locking end to prevent the locking end from losing efficiency in a locking process and improve the stability of the locking device. Meanwhile, a groove structure having an enclosed structure is formed around the locking surface to improve the locking reliability. Moreover, the contact portion 220 is of an L-shaped structure and comprises a horizontal baffle 221 and a vertical baffle 222 which are perpendicularly connected to each other. The vertical baffle 222 is perpendicularly arranged on one side wall of the pressing plate 2, and the horizontal baffle 221 is parallel to the side surface of the pressing plate 2; the horizontal baffle 221 can oscillate with the rotation of the pressing plate 2, thereby preventing the switching-off semi-shaft of the operating mechanism from resetting to a highest position, i.e., a switchable-on position. The L-shaped contact portion is simple in structure and convenient to machine and mount, and the horizontal baffle can effectively prevent the operating mechanism from resetting, such that the working performance of the locking device is improved.

[0022] According to the front structural schematic drawing of an initial state of the invention as illustrated in Fig. 4, the executing lever 1 is mounted at one side of the base 3 via the shaft pin 131, and the locking end 120 of the executing lever 1 is in contact connection with the locking portion 210 of the pressing plate 2 mounted on the support 4. The initial state refers to that the pressing plate 2 is in a horizontal position when the locking device does not trigger locking in case that the circuit breaker has no fault, and therefore the contact portion 220 cannot prevent the switching-off semi-shaft of the operating mechanism from being switched on normally. According to the partial structural cross-sectional view along an A-A direction inside an imagery line as illustrated in Fig. 4, the elastic piece 111 at the reset driving end 110 of the executing lever 1 is at an energy-storage state under the initiate state, the locking end 120 at the other end of the executing lever 1 is placed in the unlocking surface 211, and the second acting surface 122 of the locking end 120 leans against one side wall of the unlocking surface 211 corresponding to the sliding step 213.

[0023] According to the front structural schematic drawing of a locking state as illustrated in Fig. 6, a reset spring 232 which can drive the pressing plate 2 back to an initial position is mounted on the mounting cone frustums 231, and two ends of the reset spring 232 are linked to the pressing plate 2 and the support 4 respectively. When the locking end returns the unlocking surface from the locking surface, the pressing plate can drive the contact portion to return to an initial position under the resetting action force of the reset spring, such that the switching-off semi-shaft of the operating mechanism can be reset to a highest position, i.e., a switchable-on position, so as to ensure that the reset pressing plate can return to the accurate initial position and improve the working accuracy of the device. Under the locking state, i.e., the locking device triggers locking when the circuit breaker has a fault, the magnetic actuator 5 pushes the pressing plate 2 to overcome a resetting force of the reset spring 232 to oscillate and rotate clockwise relative to the support 4, and the locking end 120 of the executing lever 1 can lock the locking portion 210, and further the contact portion 220 oscillates clockwise with the pressing plate 2 to prevent the switching-off semi-shaft of the operating mechanism from returning to the highest position, i.e., the switchable-on position. According to the partial structural cross-sectional view along a B-B direction inside an imagery line of Fig. 6 as illustrated in Fig. 7, the sliding step 213 oscillates with the pressing plate 2 in a locking process, such that the second acting surface 122 loses its support, and therefore the locking end 120 slides downwards into the locking surface 212 to finish locking under the energy-releasing acting force of the elastic piece 111. The acting end 123 is in contact with the locking surface 212 under the locking state, and meanwhile a triangular structure can be formed by the locking surface 212, the first acting surface 121 and the sliding step 213. In particular, a slope 213b which can be matched with and in contact connection with the first acting surface 121 is arranged at one side, corresponding to the first acting surface 121, of the sliding step 213, and an obtuse angle is formed between the slope 213 and the locking surface 212. By means of the slope arranged at one side of the sliding step, an acting contact area of the first acting surface and the sliding step increases to prevent the contact surfaces from sliding and falling, and ensure that the pressing plate can be effectively locked. By means of the locking end having a V-shaped structure, the first acting surface 121 is in obliquely contact with the sliding step, and the contact stability can be effectively ensured due to the arrangement of the slope 213b. If the first acting surface 121 is not in obliquely contact with the sliding step, the slope 213b instead makes the locking end fall off easily. After removing a fault of the circuit breaker and unlocking the locking device after confirming that there is no fault, the user can push the reset driving end 110 manually, such that the elastic piece 111 can store energy again, and meanwhile the locking end 120 moves away from the locking surface 212. The pressing plate 2 returns to the initial position under the resetting force of the reset spring 232 after losing the locking of the locking end 120, and at this moment, the locking end 120 is placed inside the unlocking surface 211 again and is reset.

Claims

1. A circuit breaker with a locking device, wherein the locking device comprises an executing lever (1) and a pressing plate (2), wherein a hole shaft of the executing lever (1) is rotatably mounted in a base (3) of a circuit breaker; an elastic piece (111) is arranged between one end of the executing lever (1) and the base (3), and the other end of the executing lever (1) is provided with a locking end (120) which can be connected with a locking portion (210) at one side of the pressing plate (2) in a locking manner;
the pressing plate (2) is mounted in the base (3) and can rotatably oscillate relative to the base (3); the locking portion (210) at one side of the pressing plate (2) comprises an unlocking surface (211) and a locking surface (212) which correspond to the locking end (120) respectively and are adjacent to each other, and a sliding step (213) is arranged between the unlocking surface (211) and the locking surface (212); a contact portion (220) which is in contact connection with a circuit breaker operating mechanism is arranged at the other side of the pressing plate (2); a magnetic actuator (5) which can drive the pressing plate (2) to oscillate is also arranged above the pressing plate (2) correspondingly; characterized in that the magnetic actuator (5) pushes the pressing plate (2) to oscillate when the circuit breaker has a fault, such that the locking end (120) arranged inside the unlocking surface (211) slides into the locking surface (212) along the sliding step (213) under the energy-releasing acting force of the elastic piece (111) so as to lock the pressing plate (2); meanwhile, the contact portion (220) capable of oscillating with the pressing plate (2) limits the operating mechanism to prevent the operating mechanism from resetting;
the locking end (120) comprises a first acting surface (121) and a second acting surface (122) which are of a V-shaped structure and are connected to each other; the second acting surface (122) is connected with the end part of the executing lever (1) and parallel to the executing lever (1), and an acting end (123) formed at the junction of the first acting surface (121) and the second acting surface (122) can be in contact connection with the locking surface (212); the first acting surface (121) can be in obliquely contact connection with the corresponding side of the sliding step (213), and therefore a triangular structure is formed by the locking surface (212), the first acting surface (121) and one side of the sliding step (213) in case of locking.

2. The circuit breaker with the locking device according to claim 1, characterized in that a slope (213b) which can be matched with and in contact connection with the first acting surface (121) is arranged at one side, corresponding to the first acting surface (121), of the sliding step (213), and an obtuse angle is formed between the slope (213b) and the locking surface (212).

3. The circuit breaker with the locking device according to claim 1, characterized in that a circular arc surface (213a) which can be in sliding contact with the bottom of the locking end (120) is arranged at the top of the sliding step (213).

4. The circuit breaker with the locking device according to claim 1, characterized in that the pressing plate (2) is mounted on a support (4) in the base (3); the locking portion (210) and a contact portion (220) are formed by extending respectively from two sides of the pressing plate (2); a driving portion (240) corresponding to the magnetic actuator (5) is arranged in the middle of the pressing plate (2); a rotary mounting portion (230) also extends out from the driving portion (240); a mounting cone frustum (231) which can be rotatably connected with a hole shaft of the support (4) is arranged at each of two sides, corresponding to the pressing plate (2), of the rotary mounting portion (230); the magnetic actuator (5) can push the driving portion (240) when the circuit breaker has a fault, such that the pressing plate (2) can oscillate downwards along the mounting cone frustums (231) relative to the support (4).

5. The circuit breaker with the locking device according to claim 4, characterized in that a reset spring (232) which can drive the pressing plate (2) back to an initial position is mounted on the mounting cone frustums (231), and two ends of the reset spring (232) are linked to the pressing plate (2) and the support (4) respectively.

6. The circuit breaker with the locking device according to claim 1, characterized in that a reset driving end (110) corresponding to the elastic piece (111) and the locking end (120) corresponding to the pressing plate (2) are arranged at two ends of the executing lever (1) respectively, and the reset driving end (110) can drive the elastic piece (111) to store energy when the device is reset, such that the locking end (120) slides back to the unlocking surface (211) from the locking surface (212); a fulcrum mounting hole (130) which is used for being rotatably connected with a hole shaft on the side wall of the base (3) is also formed in the middle of the executing lever (1); a shaft pin (131) can be mounted inside the fulcrum mounting hole.

7. The circuit breaker with the locking device according to claim 1, characterized in that the elastic piece (111) can be a spring arranged between the end part of the executing lever (1) and the base (3), and a cone frustum (112) for limiting and fixing the spring is arranged at the bottom of one end of the executing lever (1).

8. The circuit breaker with the locking device according to claim 1, characterized in that the contact portion (220) is of an L-shaped structure and comprises a horizontal baffle (221) and a vertical baffle (222) which are perpendicularly connected to each other; the vertical baffle (222) is perpendicularly arranged on one side wall of the pressing plate (2), and the horizontal baffle (221) is parallel to the side surface of the pressing plate (2); the horizontal baffle (221) can oscillate with the rotation of the pressing plate (2), thereby preventing a switching-off semi-shaft of the operating mechanism from resetting to a switchable-on position.

9. The circuit breaker with the locking device according to claim 1, characterized in that a baffle (214) corresponding to one side wall of the pressing plate (2) is also arranged on the locking portion (210), and a connecting baffle (215) is arranged between the end part, corresponding to the locking surface (212), of the baffle (214) and the side wall of the pressing plate (2); a groove structure (216) corresponding to the locking end (120) is formed jointly by the connecting baffle (215), the baffle (214), one side wall of the pressing plate (2) and one side wall of the sliding step (214).

Ansprüche

1. Stromkreisunterbrecher mit einer Verriegelungsvorrichtung, wobei die Verriegelungsvorrichtung aufweist einen Ausführungshebel (1) und eine Drückplatte (2), wobei ein Lochschaft des Ausführungshebels (1) in einer Basis (3) eines Stromkreisunterbrechers drehbar montiert ist, wobei ein Elastikteil (111) zwischen einem Ende des Ausführungshebels (1) und der Basis (3) angeordnet ist, und das andere Ende des Ausführungshebels (1) mit einem Verriegelungsende (120) versehen ist, welches mit einem Verriegelungsabschnitt (210) auf einer Seite der Drückplatte (2) in einer verriegelnden Weise verbunden werden kann,
wobei die Drückplatte (2) in der Basis (3) montiert ist und relativ zu der Basis (3) drehoszillieren kann, wobei der Verriegelungsabschnitt (210) auf einer Seite der Drückplatte (2) eine Entriegelungsfläche (211) und eine Verriegelungsfläche (212) aufweist, die jeweils zu dem Verriegelungsende (120) korrespondieren und zueinander benachbart sind, und wobei eine Gleitstufe (213) zwischen der Entriegelungsfläche (211) und der Verriegelungsfläche (212) angeordnet ist, wobei ein Kontaktabschnitt (220), welcher in Kontaktverbindung mit einem Stromkreisunterbrecher-Betätigungsmechanismus ist, auf der anderen Seite der Drückplatte (2) angeordnet ist, wobei ferner ein magnetischer Aktuator (5), welcher die Drückplatte (2) antreiben kann, um zu oszillieren, korrespondierend über der Drückplatte (2) angeordnet ist, dadurch gekennzeichnet, dass der magnetische Aktuator (5) die Drückplatte (2) drückt, um zu oszillieren, wenn der Stromkreisunterbrecher einen Fehler hat, sodass das Verriegelungsende (120), das in der Entriegelungsfläche (211) angeordnet ist, entlang der Gleitstufe (213) in die Verriegelungsfläche (212) gleitet unter der Energie-freigebenden Wirkkraft des Elastikteils (111), um die Drückplatte (2) zu verriegeln, wobei ferner der Kontaktabschnitt (220), der imstande ist, mit der Drückplatte (2) zu oszillieren, den Betätigungsmechanismus begrenzt, um den Betätigungsmechanismus an einer Rückstellung zu hindern,
wobei das Verriegelungsende (120) aufweist eine erste Wirkfläche (121) und eine zweite Wirkfläche (122), die von einer V-förmigen Struktur sind und miteinander verbunden sind, wobei die zweite Wirkfläche (122) mit dem Endabschnitt des Ausführungshebels (1) verbunden und parallel zu dem Ausführungshebel (1) ist, und wobei ein Wirkende (123), das an der Schnittstelle der ersten Wirkfläche (121) und der zweiten Wirkfläche (122) ausgebildet ist, in Kontaktverbindung mit der Verriegelungsfläche (212) sein kann, wobei die erste Wirkfläche (121) in Schräg-Kontaktverbindung mit der korrespondierenden Seite der Gleitstufe (213) sein kann, und daher ist im Verriegelungsfalle eine Dreiecksstruktur von der Verriegelungsfläche (212), der ersten Wirkfläche (121) und einer Seite der Gleitstufe (213) gebildet.

2. Stromkreisunterbrecher mit einer Verriegelungsvorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass eine Schräge (213b), die mit der ersten Wirkfläche (121) zusammengepasst und in Kontaktverbindung sein kann, auf einer zu der ersten Wirkfläche (121) korrespondierenden Seite der Gleitstufe (213) angeordnet ist, und ein stumpfer Winkel ist zwischen der Schräge (213b) und der Verriegelungsfläche (212) ausgebildet.

3. Stromkreisunterbrecher mit der Verriegelungsvorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass eine Kreisbogenfläche (213a), welche in einem Gleitkontakt mit der Unterseite des Verriegelungsendes (120) sein kann, auf der Oberseite der Gleitstufe (213) angeordnet ist.

4. Stromkreisunterbrecher mit der Verriegelungsvorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass die Drückplatte (2) an einem Halter (4) in der Basis (3) montiert ist, wobei der Verriegelungsabschnitt (210) und ein Kontaktabschnitt (220) gebildet sind durch jeweiliges Verlängern von zwei Seiten der Drückplatte (2), wobei ein Antriebsabschnitt (240), der zu dem magnetischen Aktuator (5) korrespondiert, in der Mitte der Drückplatte (2) angeordnet ist, wobei ferner ein Drehmontageabschnitt (230) sich von dem Antriebsabschnitt (240) aus erstreckt, wobei ein Montagekegelstumpf (231), welcher mit einem Lochschaft des Halters (4) drehverbunden sein kann, auf jeder von zwei zu der Drückplatte (2) korrespondierenden Seiten des Drehmontageabschnitts (230) angeordnet ist, wobei der magnetische Aktuator (5) den Antriebsabschnitt (240) drücken kann, wenn der Stromkreisunterbrecher einen Fehler hat, sodass die Drückplatte (2) entlang der Montagekegelstümpfe (231) relativ zu dem Halter (4) nach unten oszillieren kann.

5. Stromkreisunterbrecher mit der Verriegelungsvorrichtung gemäß Anspruch 4, dadurch gekennzeichnet, dass eine Rückstellfeder (232), welche die Drückplatte (2) zurück in eine Anfangsposition antreiben kann, an den Montagekegelstümpfen (231) montiert ist, wobei zwei Enden der Rückstellfeder (232) zugeordnet mit der Drückplatte (2) und dem Halter (4) verbunden sind.

6. Stromkreisunterbrecher mit der Verriegelungsvorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass ein Rückstellantriebsende (110), das zu dem Elastikteil (111) korrespondiert, und das Verriegelungsende (120), das zu der Drückplatte (2) korrespondiert, zugeordnet an zwei Enden des Ausführungshebels (1) angeordnet sind, wobei das Rückstellantriebsende (110) das Elastikteil (111) antreiben kann, um Energie zu speichern, wenn die Vorrichtung rückgestellt wird, sodass das Verriegelungsende (120) von der Verriegelungsfläche (212) aus zu der Entriegelungsfläche (211) zurückgleitet, wobei ferner ein Gelenkmontageloch (130), welches verwendet wird, um mit einem Lochschaft an der Seitenwand der Basis (3) drehverbunden zu sein, in der Mitte des Ausführungshebels (1) ausgebildet ist, wobei ein Schaftstift (131) im Inneren des Gelenkmontagelochs montiert sein kann.

7. Stromkreisunterbrecher mit der Verriegelungsvorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass das Elastikteil (111) eine Feder sein kann, die zwischen dem Endabschnitt des Ausführungshebels (1) und der Basis (3) angeordnet ist, wobei ein Kegelstumpf (112) zum Begrenzen und Fixieren der Feder auf der Unterseite von einem Ende des Ausführungshebels (1) angeordnet ist.

8. Stromkreisunterbrecher mit der Verriegelungsvorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass der Kontaktabschnitt (220) von einer L-förmigen Struktur ist und eine horizontale Wand (221) und eine vertikale Wand (222) aufweist, die senkrecht miteinander verbunden sind, wobei die vertikale Wand (222) senkrecht an einer Seitenwand der Drückplatte (2) angeordnet ist und die horizontale Wand (221) parallel zu der Seitenfläche der Drückplatte (2) ist, wobei die horizontale Wand (221) mit der Rotation der Drückplatte (2) oszillieren kann, dadurch einen Ausschalt-Halbschaft des Betätigungsmechanismus an einer Rückstellung in eine Einschalt-Position hindernd.

9. Stromkreisunterbrecher mit der Verriegelungsvorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass ferner eine Wand (214), die zu einer Seitenwand der Drückplatte (2) korrespondiert, an dem Verriegelungsabschnitt (210) angeordnet ist und eine Verbindungswand (215) zwischen dem zu der Verriegelungsfläche (212) korrespondierenden Endabschnitt der Wand (214) und der Seitenwand der Drückplatte (2) angeordnet ist, wobei eine Nutstruktur (216), die zu dem Verriegelungsende (120) korrespondiert, gemeinsam von der Verbindungswand (215), der Wand (214), einer Seitenwand der Drückplatte (2) und einer Seitenwand der Gleitstufe (214) ausgebildet ist.

Revendications

1. Disjoncteur muni d'un dispositif de verrouillage, dans lequel le dispositif de verrouillage comprend un levier d'exécution (1) et une plaque de pression (2), dans lequel un arbre de trou du levier d'exécution (1) est monté de manière rotative dans une base (3) d'un disjoncteur ; une pièce élastique (111) est agencée entre une extrémité du levier d'exécution (1) et la base (3), et l'autre extrémité du levier d'exécution (1) est pourvue d'une extrémité de verrouillage (120) qui peut être reliée à une partie de verrouillage (210) au niveau d'un premier côté de la plaque de pression (2) d'une manière verrouillable ;
la plaque de pression (2) est montée dans la base (3) et peut osciller en rotation par rapport à la base (3) ; la partie de verrouillage (210) au niveau d'un premier côté de la plaque de pression (2) comprend une surface de déverrouillage (211) et une surface de verrouillage (212) correspondant respectivement à l'extrémité de verrouillage (120) et adjacentes l'une à l'autre, et un gradin de coulissement l'étape (213) est agencé entre la surface de déverrouillage (211) et la surface de verrouillage (212) ; une partie de contact (220) qui est en connexion de contact avec un mécanisme d'actionnement de disjoncteur est agencé au niveau de l'autre côté de la plaque de pression (2) ; un actionneur magnétique (5) qui peut entraîner la plaque de pression (2) à osciller est également agencé au-dessus de la plaque de pression (2) de manière correspondante ; caractérisé en ce que
l'actionneur magnétique (5) pousse la plaque de pression (2) à osciller lorsque le disjoncteur présente un défaut, de telle sorte que l'extrémité de verrouillage (120) agencée à l'intérieur de la surface de déverrouillage (211) coulisse jusque dans la surface de verrouillage (212) le long du gradin de coulissement (213) sous la force d'action de libération d'énergie de la pièce élastique (111) de manière à verrouiller la plaque de pression (2) ; dans le même temps, la partie de contact (220) capable d'osciller avec la plaque de pression (2) limite le mécanisme d'actionnement pour empêcher le mécanisme d'actionnement de se réinitialiser ;
l'extrémité de verrouillage (120) comprend une première surface active (121) et une seconde surface active (122) qui ont une structure en forme de V et sont connectées l'une à l'autre ; la seconde surface active (122) est connectée à la partie d'extrémité du levier d'exécution (1) et parallèle au levier d'exécution (1), et une extrémité active (123) formée à la jonction de la première surface active (121) et de la seconde surface active (122) peut être en contact avec la surface de verrouillage (212) ; la première surface active (121) peut être en connexion de contact de manière oblique avec le côté correspondant du gradin coulissant (213), et par conséquent une structure triangulaire est formée par la surface de verrouillage (212), la première surface active (121) et un côté du gradin de coulissement (213) en cas de verrouillage.

2. Disjoncteur muni d'un dispositif de verrouillage selon la revendication 1, caractérisé en ce qu'une pente (213b) qui peut être appariée et en contact avec la première surface active (121) est agencée au niveau d'un premier côté, correspondant à la première surface active (121), du gradin de coulissement (213), et un angle obtus est formé entre la pente (213b) et la surface de verrouillage (212).

3. Disjoncteur muni d'un dispositif de verrouillage selon la revendication 1, caractérisé en ce qu'une surface en arc de cercle (213a) qui peut être en contact coulissant avec le bas de l'extrémité de verrouillage (120) est agencée en haut du gradin de coulissement (213).

4. Disjoncteur muni d'un dispositif de verrouillage selon la revendication 1, caractérisé en ce que la plaque de pression (2) est montée sur un support (4) dans la base (3) ; la partie de verrouillage (210) et une partie de contact (220) sont formées en s'étendant respectivement à partir de deux côtés de la plaque de pression (2) ; une partie d'entraînement (240) correspondant à l'actionneur magnétique (5) est agencée au milieu de la plaque de pression (2) ; une partie de montage rotative (230) s'étend également vers l'extérieur à partir de la partie d'entraînement (240) ; un tronc de cône de montage (231) qui peut être connecté de manière rotative avec un arbre de trou du support (4) est agencé au niveau de chacun de deux côtés, correspondant à la plaque de pression (2), de la partie de montage rotative (230) ; l'actionneur magnétique (5) peut pousser la partie d'entraînement (240) lorsque le disjoncteur a un défaut, de telle sorte que la plaque de pression (2) peut osciller vers le bas le long des troncs de cône de montage (231) par rapport au support (4).

5. Disjoncteur muni d'un dispositif de verrouillage selon la revendication 4, caractérisé en ce qu'un ressort de réinitialisation (232) qui peut ramener la plaque de pression (2) dans une position initiale est monté sur les troncs de cône de montage (231), et deux extrémités du ressort de réinitialisation (232) sont reliées à la plaque de pression (2) et au support (4), respectivement.

6. Disjoncteur muni d'un dispositif de verrouillage selon la revendication 1, caractérisé en ce qu'une extrémité d'entraînement de réinitialisation (110) correspondant à la pièce élastique (111) et l'extrémité de verrouillage (120) correspondant à la plaque de pression (2) sont agencées au niveau de deux extrémités du levier d'exécution (1) respectivement, et l'extrémité d'entraînement de réinitialisation (110) peut entraîner la pièce élastique (111) pour stocker de l'énergie lorsque le dispositif est réinitialisé, de telle sorte que l'extrémité de verrouillage (120) glisse en retour vers la surface de déverrouillage (211) à partir de la surface de verrouillage (212) ; un trou de montage de point d'appui (130) qui est utilisé pour être connecté de manière rotative avec un arbre de trou sur la paroi latérale de la base (3) est également formé au milieu du levier d'exécution (1) ; une tige d'arbre (131) peut être montée à l'intérieur du trou de montage de point d'appui.

7. Disjoncteur muni d'un dispositif de verrouillage selon la revendication 1, caractérisé en ce que la pièce élastique (111) peut être un ressort agencé entre la partie d'extrémité du levier d'exécution (1) et la base (3), et un tronc de cône (112) pour limiter et fixer le ressort est agencé au niveau du bas d'une extrémité du levier d'exécution (1).

8. Disjoncteur muni d'un dispositif de verrouillage selon la revendication 1, caractérisé en ce que la partie de contact (220) a une structure en L et comprend un déflecteur horizontal (221) et un déflecteur vertical (222) qui sont connectés perpendiculairement l'un à l'autre ; le déflecteur vertical (222) est agencé perpendiculairement sur une première paroi latérale de la plaque de pression (2), et le déflecteur horizontal (221) est parallèle à la surface latérale de la plaque de pression (2) ; le déflecteur horizontal (221) peut osciller avec la rotation de la plaque de pression (2), en empêchant ainsi un demi-arbre de coupure du mécanisme d'actionnement de revenir à une position commutable.

9. Disjoncteur muni d'un dispositif de verrouillage selon la revendication 1, caractérisé en ce qu'un déflecteur (214) correspondant à une paroi latérale de la plaque de pression (2) est également disposée sur la partie de verrouillage (210), et un déflecteur de connexion (215) est agencé entre la partie d'extrémité, correspondant à la surface de verrouillage (212), du déflecteur (214) et la paroi latérale de la plaque de pression (2) ; une structure de rainure (216) correspondant à l'extrémité de verrouillage (120) est formée conjointement par le déflecteur de connexion (215), le déflecteur (214), une paroi latérale de la plaque de pression (2) et une paroi latérale du gradin de coulissement (214).

Drawing