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(11) | EP 4 553 372 A1 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | ADJUSTABLE TRACK LIGHT |
| (57) This application discloses an adjustable track light that includes: a sliding rail
(10) being provided with a plurality of conductive strips (12) which are arranged
along a length direction of the sliding rail (10); a light body (20) being provided
with a sliding block (21) which cooperates with the sliding rail (10); at least three
connecting terminals (30) set on the sliding block (21), being capable of contacting
and electrically conducting with corresponding conductive strips (12) one by one;
a power supply (40) having a first AC input terminal and a second AC input terminal
which are electrically connected to the connecting terminals (30); and a switch assembly
(50) being configured to switch to connect two different connecting terminals (30)
to the first AC input terminal and the second AC input terminal, respectively. Compared
with the related art, this application utilizes the switch assembly to connect the
multiple sets of light bodies to different conductive circuits, and controls whether
each set of light bodies turn on or off by supplying electric supply to the corresponding
conductive circuit or not, which is simple and convenient in operation, and can meet
various needs of the scene.
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TECHNICAL FIELD
[0001] The present application relates to the technology field of lamps, and in particular to an adjustable track light.
BACKGROUND
[0002] A track light generally includes a sliding rail and a plurality sets of light bodies ins0talled on the sliding rail. A plurality of conductive strips that can input power supply voltage (electric supply) are set inside the sliding rail, and each set of light bodies is electrically connected to the conductive strips through connecting terminals, so as to achieve lighting.
[0003] In the existing track lights, the multiple sets of light bodies installed on the same sliding rail are all controlled by an external power switch. After the electric supply is inputted to the sliding rail, all light bodies will light up synchronously. Therefore, it is impossible to selectively light up some of the light bodies based on indoor lighting conditions, and accordingly the usage scenario is limited.
SUMMARY
[0004] For solving the technical problem in existing technology, the present application provides an adjustable track light to flexibly control the operation of multiple sets of light bodies.
[0005] An adjustable track light provided by the present application includes:
a sliding rail being provided with a plurality of conductive strips which are arranged along a length direction of the sliding rail;
a light body being provided with a sliding block which cooperates with the sliding rail;
at least three connecting terminals set on the sliding block, being capable of contacting and electrically conducting with corresponding conductive strips one by one;
a power supply having a first AC input terminal and a second AC input terminal which are electrically connected to the connecting terminals; and
a switch assembly being configured to switch to connect two different connecting terminals to the first AC input terminal and the second AC input terminal, respectively.
[0006] Multiple optional solutions are provided as follows, which are only further supplements or optimizations, and should not be taken as additional limitations to the above overall solution. Without technical or logical contradictions, the optional solutions may be combined separately for the above overall solution, or may be combined with each other.
[0007] Optionally, the switch assembly includes a first conductive member being set fixedly relative to the sliding block and a second conductive member being set movably, the first AC input terminal is connected to one of the connecting terminals through the first conductive member, and the second AC input terminal is selectively connected to another one of the connecting terminals through the second conductive member.
[0008] Optionally, the switch assembly includes a third conductive member being set fixedly relative to the sliding block and in contact and electrically conducted with the second conductive member, and the third conductive member is electrically connected to the second AC input terminal through the third conductive member.
[0010] Optionally, the switch assembly includes a driving member for driving the second conductive member to rotate and an operating member being rotatable synchronously with the driving member, and wherein the operating member is partially exposed out of the sliding block.
[0011] Optionally, the second conductive member and the third conductive member, clamped by the driving member and the operating member, are in contact and electrically conducted with each other.
[0012] Optionally, the second conductive member and the connecting terminals are respectively provided on two opposite sides of the driving member, and the driving member defines a through hole that allows the second conductive member to pass therethrough.
[0013] Optionally, the driving member includes a protrusion extending through the second conductive member and the third conductive member, and the protrusion drives the second conductive member to rotate synchronously.
[0014] Optionally, the first conductive member and second conductive member include elastic portions that are in contact with the two different connecting terminals.
[0015] Optionally, the sliding block includes a housing, and the at least three connecting terminals are arranged inside the housing and rotate synchronously, having a power on state that they extend out of the housing to connect the conductive strips electrically and a power off state that they are hidden inside the housing and disconnected from the conductive strips.
[0016] Optionally, a rotary member is provided in the housing and includes a first component and a second component clasped together, and the connecting terminals are fixed between the first and second components.
[0017] Optionally, the switch assembly includes a first conductive member being set fixedly relative to the sliding block and a second conductive member being set rotatably, the first AC input terminal is connected to one of the connecting terminals through the first conductive member, and the second AC input terminal is selectively connected to another one of the connecting terminals through the second conductive member;
the switch assembly further includes a driving member that drives the second conductive member to rotate and an operating member that rotates synchronously with the driving member, wherein the operating member is partially exposed out of the sliding block; and
the rotary member is rotatably connected to the driving member.
[0018] Optionally, the second conductive member and the connecting terminals rotate about the same axis.
[0020] Optionally, the sliding rail is provided with a sliding groove, the conductive strips are provided on a side wall of the sliding groove, and the sliding block is mounted inside the sliding groove.
[0021] Compared with the related art, this application utilizes the switch assembly to achieve flexible switch, thereby being capable of controlling the operation of the light body to obtain different lighting effects, which is simple and convenient in operation.
BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more effectively demonstrate the technical solutions in the embodiments or prior art of the present invention, the accompanying drawings that must be utilized in the description of the embodiments or prior art are briefly described below. It will be apparent that the accompanying drawings in the following description are only some, but not all, embodiments of the present invention. For those of ordinary skill in the art, other drawings may be obtained from the provided accompanying drawings without creative labor.
FIG. 1 is a schematic, partial view of an embodiment of a track light.
FIG. 2 is an enlarged, partial view of an embodiment of a track light.
FIG. 3 is an enlarged, partial view of the track light viewed from another aspect.
FIG. 4 is a schematic, partial view of another embodiment of a track light.
FIG. 5 is a cross sectional view of an embodiment of a track light.
FIG. 6 is a schematic, structural view of a switch assembly, connecting terminals and a rotary member according to an embodiment.
FIG. 7 is schematic view showing cooperation of the switch assembly, connecting terminals and rotary member according to an embodiment.
FIG. 8 is an exploded view of the switch assembly, connecting terminals and rotary member according to an embodiment.
FIG. 9 is a further exploded of FIG. 8.
FIG. 10 is a further exploded of FIG. 9.
FIG. 11 is a further exploded of FIG. 10.
[0023] Reference numbers in the figures are as follows:
10, sliding rail; 11, sliding groove; 12, conductive strip;
20, light body; 21, sliding block;
30, connecting terminal; 31, first connecting terminal; 311, vertical portion; 312, transverse portion; 32, second connecting terminal; 33, third connecting terminal; 34, fourth connecting terminal; 35, ground terminal;
40, power supply;
50, switch assembly; 51, first conductive member; 511, elastic portion; 52, second conductive member; 521, first annular portion; 522, elastic portion; 53, third conductive member; 531, second annular portion; 532, wire connecting portion;
60, driving member; 61, through hole; 62, protrusion;
70, operating member;
80, rotary member; 81, first component; 82, second component; 83, first insulating member; 84, second insulating member; 85, driving handle.
DESCRIPTION OF THE EMBODIMENTS
[0024] For better illustrating the technical means, creative features, objects and effects of the present application, clear and complete description will be given for the technical solutions of embodiments of the present application with reference to the append drawings. Obviously, the described embodiments are only a part of the embodiments, and not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without any creative work should be in the scope of this application.
[0025] It should be noted that when a component is referred to as being "connected to" another component, it may be directly connected to the another component or there may be a middle component therebetween. When a component is considered as being "set on" another component, it may be directly set on the another component or there may be a middle component present therebetween.
[0026] Unless otherwise defined, all technical and scientific terms used in this disclosure have the same meanings as those commonly understood by those skilled in the art of this application. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and/or" used in this disclosure includes any and all combinations of one or more related listed items.
[0027] Referring to FIG. 1 to FIG. 5, an embodiment of this application provides an adjustable track light, including a sliding rail 10, a light body 20, a plurality of connecting terminals 30, a power supply 40, and a switch assembly 50. The sliding rail 10 is provided with a sliding groove 11, and conductive strips 12 are provided on and arranged along a length direction of a side wall of the sliding groove 11. The conductive strips 12 generally include multiple strips to facilitate the input of voltage of an external power source, and may be divided into live strips and zero strip. The light body 20 is provided with a sliding block 21, which cooperates with the sliding groove 11 to achieve a position movement of the light body 20. The connecting terminals 30 are set on the sliding block 21, and are at least three in number. The connecting terminals 30 may be in contact and electrically conducted with corresponding conductive strips 12 one by one. The power supply 40 includes a first AC input terminal and a second AC input terminal, which can be electrically connected to the connecting terminals 30, thereby converting AC power supplied by the external power supply into DC power to drive lighting component(s) inside the light body 20 to emit light. The switch assembly 50 can switch to connect different two of the connecting terminals 30 to the first AC input terminal and the second AC input terminal, respectively, so as to make the power supply be or not be conductive to the corresponding conductive strips.
[0028] Generally, there are multiple sets of light bodies 20 set on the sliding rail 10. On one hand, the multiple sets of light bodies 20 are in contact with the conductive strips 12 of the sliding rail 10 through the connecting terminals 30; and on the other hand, the multiple sets of light bodies 20 electrically conduct their corresponding power supply 40 with the corresponding conductive strips 12 through their corresponding switch assembly 50, and controls whether each set of light bodies 20 turn on or off by supplying electric supply to the corresponding conductive strips or not. When the track light is in use, according to the indoor lighting conditions, it is possible to selectively input electric supply to the corresponding conductive strips to drive the corresponding light body to light up, which is simple and convenient in operation.
[0029] Specifically, referring to FIG. 5 to FIG. 7, in this embodiment, to achieve flexible switching, the switch assembly 50 includes a first conductive member 51 and a second conductive member 52. The first conductive member 51 is set fixedly, and the first AC input terminal is electrically connected to one of the connecting terminals through the first conductive member 51. The second conductive member 52 is set movably, and the second AC input terminal is selectively connected to another one of the connecting terminals 30 through the second conductive member 52.
[0030] Referring to FIG. 9, in this embodiment, the track light includes a third conductive member 53 being set fixedly. The second conductive member 52 is connected to the second AC input terminal through the third conductive member 53, so that the second conductive member 52, which is set movably, can be stably connected to the second AC input terminal. Furthermore, the second conductive member 52 and the third conductive member 53 are in contact and electrically conducted with each other.
[0031] Referring to FIG. 9, in this embodiment, a track light with four strips is provided. The side wall of the sliding groove 11 is provided with four conductive strips 12, three of which are live strips and the other one is zero strip, thereby forming three circuits. Correspondingly, each set of light bodies is provided with four connecting terminals 30, namely a first connecting terminal 31, a second connecting terminal 32, a third connecting terminal 33, and a fourth connecting terminal 34. During installation, an end of the first connecting terminal 31 of each light body is in contact with the zero strip, and ends of the other connecting terminals are in contact with the three live strips, respectively.
[0032] The second conductive member 52, which is set movably, may be set in a manner of rotatably. Taking a single set of light bodies as an example, the first conductive member 51 is in contact with the first connecting terminal 31, and the second conductive member 52 is rotated to contact the second connecting terminal 32, the third connecting terminal 33, or the fourth connecting terminal 34, so that the power source is conductive to the corresponding live strip. When the set of light bodies needs to light up, simply input the electric supply to the corresponding live strip. Referring to FIG. 6 to FIG. 11, in this embodiment, the track light further includes a driving member 60 that drives the second conductive member 52. Based on the driving member 60, the installation positions of the conductive members and the connecting terminals 30 may be as follows: the second conductive member 52 and the connecting terminal 30 are set on two opposite sides of the driving member 60, and the driving member 60 defines a through hole 61 that allows the second conductive member 52 to pass therethrough to contact the connecting terminal 30.
[0033] To ensure that the conductive members can come into contact with the connecting terminals, each connecting terminal has a sheet-like structure, and includes a vertical portion extending along an axial direction and a transverse portion bending from the vertical portion and extending along a radial direction. For example, the first connecting terminal 31 includes a vertical portion 311 and a transverse portion 312. The first conductive member 51 and the second conductive member 52 each have a sheet-like structure. One end of the first conductive member 51 is fixed to the driving member, and maintains in contact with the transverse portion of one of the connecting terminals, for example, in contact with the transverse portion 312 of the first connecting terminal 31. The second conductive member 52 includes a first annular portion 521 and an elastic portion 522 extending from a periphery of the first annular portion 521, wherein the elastic portion 522 extends out of the driving member 60 through the through hole and a distal end thereof is bent. During the switching process by rotating the second conductive member, the elastic portion 522 can flexibly contact the remaining connecting terminal. In addition, in order to make the second conductive member 52 and the third conductive member 53 be in contact and electrically conducted with each other, the third conductive member 53 also has a sheet-like structure, and includes a second annular portion 531 and a wire connecting portion 532, wherein the second annular portion 531 is attached to the first annular portion 521 of the second conductive member to achieve contact and conductivity.
[0034] Referring to FIG. 9, in this embodiment, the track light further includes an operating member 70, which rotates synchronously with the driving member 60. In order to enable the second conductive member 52 to be electrically connected to the second AC input terminal through the fixed third conductive member 53, the second conductive member 52 and the third conductive member 53, which are clamped by the driving member 60 and the operating member 70, are in contact and electrically conducted with each other. Part of the operating member 70 is exposed outside the sliding block, and is generally disk-shaped with anti-sliding teeth and markings formed on a circumferential surface thereof to identify which connecting terminal is connected to the power supply electrically.
[0035] Furthermore, the driving member 60 has a protrusion 62 for passing through the second conductive member 52 and the third conductive member 53. The protrusion 62 can drive the second conductive member 52 to rotate, but can not drive the third conductive member 53 to rotate. For example, the protrusion 62 is generally cylindrical-shaped, the second conductive member 52 defines a first through hole with an inner contour being generally circular-shaped, and the third conductive member 53 defines a second through hole with an inner contour being generally polygonal-shaped. Thus, the protrusion 62 can only drive the second conductive member 52 to rotate.
[0036] Regarding the setting of the connecting terminals 30, referring to the embodiment shown in FIGs. 1-3, the sliding block 21 includes a housing. The terminals 30 are rotatably set in the housing, and have a power off state that they are hidden inside the housing and a power on state that they extend out of the sliding block 21 to contact the corresponding conductive strips 12. The second conductive member 53 and the connecting terminals 30 rotate about the same axis.
[0037] Referring to FIG. 6, a rotary member 80 is provided inside the housing, and includes a first component 81 and a second component 82 that are clasped together. The connecting terminals 30 are fixed between the two components. More specifically, the rotary member 80 further includes insulating members, including a first insulating member 83 and a second insulating member 84, set between the first component 81 and the second component 82 to separate the connecting terminals 30 from each other. For example, as shown in FIG. 6, the first insulating member 83 includes a vertical insulating plate with two opposite sides. The connecting terminals 30 are arranged in sets of two, and at the two opposite sides, respectively. The connecting terminals 30 in the same set are separated by an insulating plate which is arranged transversely, so as to avoid mutual contact. The second insulating member 84 is an arc-shaped plate, for isolating edges of two sets of connecting terminals.
[0038] As described above, there are four connecting terminals arranged inside the housing, namely the first connecting terminal 31, the second connecting terminal 32, the third connecting terminal 33, and the fourth connecting terminal 34. Each connecting terminal includes a vertical portion, an upper transverse portion, and a lower transverse portion. The upper transverse portion is in contact and electrically conducted with the conductive strip on the rail, and the lower transverse portion is in contact and electrically conducted with the first conductive member 51 or the second conductive member 52. Each side of the sliding block is provided with two upper transverse portions, and the lower transverse portion is set close to the driving member 60. Neighboring lower transverse portions are evenly arranged, spaced from each other with an angle of 90 degrees formed therebetween. Therefore, the second conductive member 52 can be disconnected from the corresponding connecting terminal by rotating the driving member with an angle of 90 degrees. As shown in FIG. 11, a connecting pole is set at a bottom of the first insulating member 82, and correspondingly a connecting hole is defined in a center of the driving member 60. The connecting pole is inserted into the connecting hole to achieve a rotational fit between the whole rotary member 80 and the driving member 60. That is, relative motion of the rotary member 80 with respect to the housing and relative motion of the driving member 60 with respect to the housing are independent, and do not interfere with each other.
[0039] For driving the rotary member 80 to rotate, a driving handle 85 connected to the rotary member 80 is further provided inside the sliding block 21, and a free end of the driving handle 85 extends beyond the sliding block 21 for facilitating operation. During assembly, the rotary member 80 is driven to rotate by the driving handle 85, causing the connecting terminal to extend out of the sliding block and into the sliding groove 11 to contact the conductive strip, thus completing the connection between the light body and the sliding rail, i.e., the light body and the sliding rail are connected and conductive.
[0040] Referring to FIG. 1 and FIG.5, in this embodiment, the track light is further provided with a ground terminal 35 to enhance the safety of use. The connecting terminal 30 may be fixed to the housing, for example, there is a slot defined in the housing, one end of the connecting terminal 30 is inserted into the slot, and the other end of the connecting terminal 30 extends beyond the housing to contact the side wall of the sliding rail 10 for grounding.
[0041] The adjustable track light provided by this application utilizes the switch assembly to connect the multiple sets of light bodies to different conductive circuits. By means of inputting electric supply to the corresponding conductive circuit or not, it controls whether each set of light bodies lights up. The operation is simple and convenient, and can meet various needs of the scene.
[0042] The various technical features of the above embodiments can be combined in any way. To make the description concise, not all possible combinations of the technical features in the above embodiments have been described. However, as long as there is no contradiction in the combination of these technical features, they should be considered within the scope of this specification. When the technical features in different embodiments are reflected in the same figure, it can be regarded that the figure also discloses the combination examples of the various embodiments.
[0043] The above embodiments only express several embodiments of the present application, and their description, which is more specific and detailed, cannot be understood as a limitation on the scope of this application. It should be pointed out that for ordinary skilled in the art, modifications and improvements can be made without departing from the concept of this application, all of which fall within the protection scope of this application. Therefore, the protection scope of this application shall be based on the attached claims.
1. An adjustable track light, comprising:
a sliding rail being provided with a plurality of conductive strips which are arranged along a length direction of the sliding rail;
a light body being provided with a sliding block which cooperates with the sliding rail;
at least three connecting terminals set on the sliding block, being capable of contacting and electrically conducting with corresponding conductive strips one by one;
a power supply having a first AC input terminal and a second AC input terminal which are electrically connected to the connecting terminals;
a switch assembly being configured to switch to connect two different connecting terminals to the first AC input terminal and the second AC input terminal, respectively.
2. The adjustable track light as defined in claim 1, wherein the switch assembly comprises
a first conductive member being set fixedly relative to the sliding block and a second
conductive member being set movably, the first AC input terminal is connected to one
of the connecting terminals through the first conductive member, and the second AC
input terminal is selectively connected to another one of the connecting terminals
through the second conductive member.
3. The adjustable track light as defined in claim 2, wherein the switch assembly comprises
a third conductive member being set fixedly relative to the sliding block and in contact
and electrically conducted with the second conductive member, and the third conductive
member is electrically connected to the second AC input terminal through the third
conductive member.
4. The adjustable track light as defined in claim 3, wherein the second conductive member
is rotatably set relative to the sliding block.
5. The adjustable track light as defined in claim 4, wherein the switch assembly comprises
a driving member for driving the second conductive member to rotate and an operating
member being rotatable synchronously with the driving member, and wherein the operating
member is partially exposed out of the sliding block.
6. The adjustable track light as defined in claim 5, wherein the second conductive member
and the third conductive member, clamped by the driving member and the operating member,
are in contact and electrically conducted with each other.
7. The adjustable track light as defined in claim 5, wherein the second conductive member
and the connecting terminals are respectively provided on two opposite sides of the
driving member, and the driving member defines a through hole that allows the second
conductive member to pass therethrough.
8. The adjustable track light as defined in claim 5, wherein the driving member comprises
a protrusion extending through the second conductive member and the third conductive
member, and the protrusion drives the second conductive member to rotate synchronously.
9. The adjustable track light as defined in claim 2, wherein the first conductive member
and second conductive member comprise elastic portions that are in contact with the
two different connecting terminals.
10. The adjustable track light as defined in claim 1, wherein the sliding block comprises
a housing, and the at least three connecting terminals are arranged inside the housing
and rotate synchronously, having a power on state that they extend out of the housing
to connect the conductive strips electrically and a power off state that they are
hidden inside the housing and disconnected from the conductive strips.
11. The adjustable track light as defined in claim 10, wherein a rotary member is provided
in the housing and comprises a first component and a second component clasped together,
and the connecting terminals are fixed between the first and second components.
12. The adjustable track light as defined in claim 11, wherein the switch assembly comprises
a first conductive member being set fixedly relative to the sliding block and a second
conductive member being set rotatably, the first AC input terminal is connected to
one of the connecting terminals through the first conductive member, and the second
AC input terminal is selectively connected to another one of the connecting terminals
through the second conductive member;
the switch assembly further comprises a driving member that drives the second conductive member to rotate and an operating member that rotates synchronously with the driving member, wherein the operating member is partially exposed out of the sliding block; and
the rotary member is rotatably connected to the driving member.
13. The adjustable track light as defined in claim 1, wherein the track light comprises
at least two light bodies.
14. The adjustable track light as defined in claim 1, wherein the sliding rail is provided
with a sliding groove, the conductive strips are provided on a side wall of the sliding
groove, and the sliding block is mounted inside the sliding groove.