CIRCULAR BUNDLING, WATERPROOF AND FAST-INSERTION TYPE RADIO FREQUENCY CONNECTOR

Abstract

 The present invention provides a circular cluster waterproof tool-less radio frequency connector, including a socket (1) and a plug (2), where the socket (1) includes a housing (11), a first ring insulator (13) disposed in the housing (11), a connection point (16) disposed in the first ring insulator (13), and a protective cover (15) disposed on a header of the connection point (16). The plug (2) includes a casing (21) and a single-core connector (3) disposed in the casing (21), and the single-core connector (3) is permanently connected to the casing (21) by using an adjustable nut (29). A quantity of connection points (16) is the same as a quantity of single-core connectors (3), and there are at least two connection points (16) and at least two single-core connectors (3). The radio frequency connector has a small volume, high integration, few connected cables, stable signal quality, and low connection costs, and is easily used.

Description

[0001] This application claims priority to Chinese Patent Application No. 201610595396.8, filed with the Chinese Patent Office on July 27, 2016 and entitled "CIRCULAR CLUSTER WATERPROOF TOOL-LESS RADIO FREQUENCY CONNECTOR", which is incorporated herein by reference in its entirety.

TECHNICAL FIELD

[0002] The present invention relates to a radio frequency connector, and specifically, relates to a circular cluster waterproof tool-less radio frequency connector.

BACKGROUND

[0003] A radio frequency coaxial connector functions as a link to connect a transmission line, a microstrip circuit, and a printed board circuit in microwave transmission, and has advantages such as a wide operating frequency band and convenient connection, and therefore is widely applied in areas such as an aerospace system, microwave communication engineering, and military weapons.

[0004] A conventional intelligent antenna unit and RRU have a large quantity of ports and cables, and consequently a "beard" problem in actual construction is very severe, causing a problem of low installation efficiency and high labor intensity. However, as mobile communications technologies develop by leaps and bounds, a multi-channel connector emerges, effectively resolving the "beard" problem. However, some disadvantages appear after years of application:

(1) The antenna unit and the RRU have a large quantity of ports and cables for connection, and each port on the RRU needs waterproof treatment, causing relatively heavy installation workload and a large quantity of fault sources.

(2) An existing multi-channel connector still has a problem of a PIM intermodulation index.

(3) An existing multi-channel connector still needs to be treated with waterproof tape.

(4) An existing multi-channel connector uses a threaded connection mode, and installation efficiency is not high.

(5) A multi-channel curing design is used for a plug of an existing multi-channel connector, and therefore maintainability is not high.

SUMMARY

[0005] To resolve the foregoing prior-art problems, the present invention provides a circular cluster waterproof tool-less radio frequency connector.

[0006] The technical problems to be resolved in the present invention are implemented by using the following technical solutions.

[0007] A circular cluster waterproof tool-less radio frequency connector is provided, including a socket and a plug, where the socket includes a housing, a first ring insulator disposed in the housing, a connection point disposed in the first ring insulator, and a protective cover disposed on a header of the connection point.

[0008] The plug includes a casing and a single-core connector disposed in the casing, and the single-core connector is permanently connected to the casing by using an adjustable nut.

[0009] A quantity of connection points is the same as a quantity of single-core connectors, and there are at least two connection points and at least two single-core connectors.

[0010] In a further description of the present invention, the single-core connector includes a single-core housing, a conductive elastic contact part disposed at a front end of the single-core housing, a second ring insulator disposed in the single-core housing, and a jack disposed in the second ring insulator, where the jack and the second ring insulator are coaxially disposed.

[0011] In a further description of the present invention, an external sealing ring and an internal sealing ring are disposed on the adjustable nut.

[0012] In a further description of the present invention, the plug further includes a ring spring plate disposed in the casing and an unlocking sleeve sleeved on the casing, and a spring and a first sealing ring are disposed between the unlocking sleeve and the casing.

[0013] In a further description of the present invention, a groove and a thread are disposed on the housing, and during insertion of the plug into the socket, the plug and the socket may be quickly locked through the groove and the ring spring plate, or a threaded connection may be established between the plug and the socket through the thread.

[0014] In a further description of the present invention, one primary key slot and a plurality of secondary key slots are disposed at an end that is of the socket and that is connected to the plug, and the primary key slot and the secondary key slots are asymmetrically distributed.

[0015] In a further description of the present invention, one primary key and a plurality of secondary keys are disposed at an end that is of the plug and that is connected to the socket, and locations of the primary key and the plurality of secondary keys are in a one-to-one correspondence with locations of the primary key slot and the secondary key slots.

[0016] In a further description of the present invention, a second sealing ring and a third sealing ring are respectively disposed on an external part and an internal part of the housing.

[0017] In a further description of the present invention, a flange is disposed at an end that is of the socket and that is not connected to the plug, and a fourth sealing ring is disposed on the flange.

[0018] Compared with the prior art, the present invention brings the following beneficial effects:

1. In the present invention, an asymmetric design is preferably used for locations of the keys and locations of the key slots, so that a blind insertion function is implemented, and the design has characteristics such as anti-misplugging and adaptive alignment while ensuring that interconnection can be implemented when connection points of the socket are interchanged and jacks of the plug are interchanged.

2. Both the plug and the socket in the present invention have an identifier hole for quick alignment and installation, and the connector has a plurality of sealing structures, so that a waterproof function of the cluster connector after interconnection is ensured, and processing by using waterproof tape is not required for outdoor use.

3. The circular cluster waterproof tool-less radio frequency connector in the present invention has a small volume and high integration, and can be quickly installed and separated, and has few connected cables, stable signal quality, and low connection costs, and is quite easily used.

4. Because the socket is not frequently disassembled, a multi-channel curing design is used; a single-channel detachable and separable design solution is used for the plug, and therefore the plug can be disassembled at any time, and has high maintainability; and in addition, each channel is tightly pressed in the casing of the plug by using an adjustable nut, and two sealing rings are disposed on the nut, to ensure sealing performance of each channel.

BRIEF DESCRIPTION OF DRAWINGS

[0019] 

FIG. 1 is a section view of a circular cluster waterproof tool-less radio frequency connector after insertion according to the present invention;

FIG. 2 is a section view and a right side view of a socket of a circular cluster waterproof tool-less radio frequency connector according to the present invention;

FIG. 3 is a section view and a left side view of a plug of a circular cluster waterproof tool-less radio frequency connector according to the present invention;

FIG. 4 is a section view of a single-core connector of a circular cluster waterproof tool-less radio frequency connector according to the present invention;

FIG. 5 is a local section view of a circular cluster waterproof tool-less radio frequency connector after a connection point is inserted into a single-core connector according to the present invention;

FIG. 6 is a half section view of an adjustable nut of a circular cluster waterproof tool-less radio frequency connector according to the present invention;

FIG. 7 is a section view and a left side view of a housing of a socket of a circular cluster waterproof tool-less radio frequency connector according to the present invention;

FIG. 8 is a section view and a left side view of a casing of a plug of a circular cluster waterproof tool-less radio frequency connector according to the present invention;

FIG. 9 is a main view and an A-A section view of a ring spring plate of a circular cluster waterproof tool-less radio frequency connector according to the present invention; and

FIG. 10 is a section view of an unlocking sleeve of a circular cluster waterproof tool-less radio frequency connector according to the present invention.

[0020] In the figures, 1 represents a socket, 11 represents a housing, 12 represents a third sealing ring, 13 represents a first ring insulator, 14 represents a second sealing ring, 15 represents a protective cover, 16 represents a connection point, 17 represents a primary key slot, 18 represents a flange, 19 represents a fourth sealing ring, 2 represents a plug, 21 represents a casing, 22 represents a first sealing ring, 23 represents an unlocking sleeve, 24 represents a ring spring plate, 25 represents a spring, 26 represents a primary key, 27 represents an external sealing ring, 28 represents an internal sealing ring, 29 represents an adjustable nut, 3 represents a single-core connector, 31 represents a single-core housing, 32 represents a jack, 33 represents a second ring insulator, and 34 represents a conductive elastic contact part.

DESCRIPTION OF EMBODIMENTS

[0021] The present invention is further described in the following in detail with reference to specific embodiments, but implementations of the present invention are not limited thereto.

Embodiment 1

[0022] FIG. 1, FIG. 2, FIG. 3, FIG. 7, and FIG. 8 show a circular cluster waterproof tool-less radio frequency connector, including a socket 1 and a plug 2. The socket 1 includes a housing 11, a first ring insulator 13 disposed in the housing (11), a connection point 16 disposed in the first ring insulator 13, and a protective cover 15 disposed on a header of the connection point 16. The protective cover 15 externally extends to form a ring cavity, and the connection point 16 is completely located in the cavity, to prevent the connection point 16 from being damaged by an external force. Each connection point 16 is an internal conductor, and each connection point 16 is separately disposed in one first ring insulator 13. In the socket 1, a signal may be transmitted along an external surface of the connection point 16, a conductive casing 21, and an internal surface of the protective cover 15.

[0023] The plug 2 includes the casing 21 and a single-core connector 3 that is disposed in the casing 21, and the single-core connector 3 is permanently connected to the casing 21 by using an adjustable nut 29. A quantity of connection points 16 is the same as a quantity of single-core connectors 3, and there are at least two connection points 16 and at least two single-core connectors 3. When the plug 2 is inserted into the socket 1, each connection point 16 is inserted into a corresponding single-core connector 3, to transmit a signal.

Embodiment 2

[0024] On the basis of Embodiment 1, FIG. 4 is a section view of the single-core connector 3 of the circular cluster waterproof tool-less radio frequency connector according to the present invention. The single-core connector 3 includes a single-core housing 31, a conductive elastic contact part 34 disposed at a front end of the single-core housing 31, a second ring insulator 33 disposed in the single-core housing 31, and a jack 32 disposed in the second ring insulator 33, where the jack 32 and the second ring insulator 33 are coaxially disposed.

[0025] As shown in FIG. 5, when the plug 2 is inserted into the socket 1, the housing 11 of the socket 1 is first inserted into a cavity of the casing 21 of the plug 2, to ensure a concentricity for insertion into the single-core connector 3. This can prevent the jack 32 and the conductive elastic contact part 34 from being damaged due to oblique insertion in a process of inserting the connection point 16 into the jack 32 and inserting the conductive elastic contact part 34 into the protective cover 15. The jack 32 in the single-core connector 3 is a cylindrical jack 32 with a split groove, and can provide stable contact positive pressure to ensure stable contact with the connection point 16. A signal is transmitted along the jack 32 and an internal surface of the single-core housing 31. In this case, the conductive elastic contact part 34 is in contact with the internal surface of the protective cover 15 on the socket 1, and the conductive elastic contact part 34 is in a contraction state, and can provide stable contact positive pressure to ensure stable contact with the internal surface of the protective cover 15, so that it can be ensured that a signal channel can be formed, and a relatively good PIM intermodulation index can be ensured.

Embodiment 3

[0026] On the basis of Embodiment 1, as shown in FIG. 6, an external sealing ring 27 and an internal sealing ring 28 are disposed on the adjustable nut 29. After being equipped with a welding cable, the single-core connector 3 is inserted into the casing 21 of the plug 2, and is locked by using the adjustable nut 29. The external sealing ring 27 and the internal sealing ring 28 on the adjustable nut 29 ensure air-tightness of a tail of the plug 2 after the single-core connector 3 is installed.

Embodiment 4

[0027] On the basis of Embodiment 1, the plug 2 further includes a ring spring plate 24 disposed in the casing 21 and an unlocking sleeve 23 sleeved on the casing 21. As shown in FIG. 9 and FIG. 10, a spring 25 and a first sealing ring 22 are disposed between the unlocking sleeve 23 and the casing 21, to ensure that the unlocking sleeve 23 reliably cooperates with an external sealing ring of the casing 21, thereby effectively performing a sealing function. In addition, it can be ensured that the unlocking sleeve 23 is quickly reset after an unlocking action is completed.

[0028] A groove is disposed on the housing 11. During insertion of the plug 2 into the socket 1, when the plug 2 is pushed to the socket 1 fixed at a device, the ring spring plate 24 first swells, and then contracts in the groove on the housing 11, to ensure that axial directions of the plug 2 and the socket 1 are not separated, and the plug 2 and the socket 1 can stand a relatively large axial pull. During unlocking, the unlocking sleeve 23 is pulled, so that the ring spring plate 24 swells, and the ring spring plate 24 is separated from the groove, thereby implementing unplugging of the plug 2 from the socket 1.

[0029] A thread is further disposed on the housing 11, so that a threaded connection to a threaded connector may be implemented, thereby improving applicability of the exhibit.

Embodiment 5

[0030] On the basis of Embodiment 1, as shown in FIG. 2, FIG. 3, FIG. 7, and FIG. 8, one primary key slot 17 and a plurality of secondary key slots are disposed at an end that is of the socket 1 and that is connected to the plug 2, and the primary key slot 17 and the secondary key slots are asymmetrically distributed. One primary key 26 and a plurality of secondary keys are disposed at an end that is of the plug 2 and that is connected to the socket 1, and locations of the primary key 26 and the secondary keys are in a one-to-one correspondence with locations of the primary key slot 17 and the secondary key slots.

[0031] A noticeable identifier is disposed on an external part of the primary key slot 17 disposed on a front end face of the socket 1, and a noticeable identifier is disposed on an external part of the corresponding primary key 26 disposed on a front end face of the casing 21 of the plug 2, and in addition, the locations of the primary key 26 and the secondary keys are in a one-to-one correspondence with the locations of the primary key slot 17 and the secondary key slots of the socket 1. In this way, accurate positioning for interconnection between the socket 1 and the plug 2 can be implemented through cooperation between the keys and the key slots, thereby effectively improving accuracy of interconnection between the socket 1 and the plug 2.

Embodiment 6

[0032] On the basis of Embodiment 1, as shown in FIG. 2 and FIG. 7, a second sealing ring 14 and a third sealing ring 12 are respectively disposed on an external part and an internal part of the housing 11, and a flange 18 is disposed at an end that is of the socket 1 and that is not connected to the plug 2, and a fourth sealing ring 19 is disposed on the flange 18.

[0033] The flange 18 and the fourth sealing ring 19 disposed at a back end of the casing 21 of the socket 1 may be installed on and fixed with a device. In addition, the third sealing ring 12 and the second sealing ring 14 are respectively disposed on the internal part and the external part of the casing 21 of the socket 1, to ensure that both an end face and a connection face of the connector are waterproof after insertion, thereby improving environment adaptability of the connector.

[0034] The foregoing content further describes the present invention in detail with reference to specific preferred embodiments, and this specification should not be construed as a limitation on the specific embodiments of the present invention. A person of ordinary skill in the art to which the present invention relates may make some simple derivations or replacements without departing from the idea of the present invention, and the derivations or replacements should all fall within the protection scope of the present invention.

Claims

1. A circular cluster waterproof tool-less radio frequency connector, comprising a socket (1) and a plug (2), wherein the socket (1) comprises a housing (11), a first ring insulator (13) disposed in the housing (11), a connection point (16) disposed in the first ring insulator (13), and a protective cover (15) disposed on a header of the connection point (16);
the plug (2) comprises a casing (21) and a single-core connector (3) disposed in the casing (21), and the single-core connector (3) is permanently connected to the casing (21) by using an adjustable nut (29); and
a same quantity of connection points (16) is the same as a quantity of single-core connectors (3), and there are at least two connection points (16) and at least two single-core connectors (3).

2. The circular cluster waterproof tool-less radio frequency connector according to claim 1, wherein the single-core connector (3) comprises a single-core housing (31), a conductive elastic contact part (34) disposed at a front end of the single-core housing (31), a second ring insulator (33) disposed in the single-core housing (31), and a jack (32) disposed in the second ring insulator (33), wherein the jack (32) and the second ring insulator (33) are coaxially disposed.

3. The circular cluster waterproof tool-less radio frequency connector according to claim 1, wherein an external sealing ring (27) and an internal sealing ring (28) are disposed on the adjustable nut (29).

4. The circular cluster waterproof tool-less radio frequency connector according to claim 1, wherein the plug (2) further comprises a ring spring plate (24) disposed in the casing (21) and an unlocking sleeve (23) sleeved on the casing (21), and a spring (25) and a first sealing ring (22) are disposed between the unlocking sleeve (23) and the casing (21).

5. The circular cluster waterproof tool-less radio frequency connector according to claim 1 or 4, wherein a groove and a thread are disposed on the housing (11), and during insertion of the plug (2) into the socket (1), the plug (2) and the socket (1) are quickly locked through the groove and the ring spring plate (24), or the plug (2) and the socket (1) are in a threaded connection through the thread.

6. The circular cluster waterproof tool-less radio frequency connector according to claim 1, wherein one primary key slot (17) and a plurality of secondary key slots are disposed at an end that is of the socket (1) and that is connected to the plug (2), and the primary key slot (17) and the secondary key slots are asymmetrically distributed.

7. The circular cluster waterproof tool-less radio frequency connector according to claim 1 or 6, wherein one primary key (26) and a plurality of secondary keys are disposed at an end that is of the plug (2) and that is connected to the socket (1), and locations of the primary key (26) and the secondary keys are in a one-to-one correspondence with locations of the primary key slot (17) and the secondary key slots.

8. The circular cluster waterproof tool-less radio frequency connector according to claim 1, wherein a second sealing ring (14) and a third sealing ring (12) are respectively disposed on an external part and an internal part of the housing (11).

9. The circular cluster waterproof tool-less radio frequency connector according to claim 1, wherein a flange (18) is disposed at an end that is of the socket (1) and that is not connected to the plug (2), and a fourth sealing ring (19) is disposed on the flange (18).

Drawing