Short circuit contact and short circuit connector

Abstract

The invention discloses a short-circuit connector which comprises an insulator arranged in a connector shell, a short-circuit contact piece is arranged in a mounting hole position in the insulator and is provided with a plug-in end and a short-circuit end, a short-circuit plate is arranged at a non-plug-in end of the connector shell, a plurality of short-circuit jacks are formed in the short-circuit plate, and a plurality of short-circuit jacks are formed in the short-circuit plate. A plurality of short-circuit arms are formed on the short-circuit end through a plurality of axial split grooves distributed in the circumferential direction, the short-circuit arms are inserted into the corresponding short-circuit jacks, and the short-circuit arms and the short-circuit jacks are in interference fit. The short-circuit contact element is simple in structure, the short-circuit contact element can be installed on a short-circuit connector by adopting a conventional plug-in installation structure, additional auxiliary tools are not needed, the short-circuit arms and the short-circuit jacks are in interference fit after installation is completed, additional radial space is not occupied, and the short-circuit contact element is particularly suitable for a connector with a small structure or a large number of cores. And meanwhile, multi-point elastic contact between the short circuit arm and the short circuit plate is realized by means of the axial split groove, compared with existing hard connection modes such as riveting, welding and pressure, long-time stress influence can be avoided, the anti-vibration performance is good, and contact is reliable.

Description

Technical Field

[0001] This invention belongs to the technical field of short-circuit connectors, specifically relating to a short-circuit contact and a short-circuit connector. Background Technology

[0002] Currently, connectors installed on equipment and powered off are prone to static electricity during storage and transportation, which may damage the electrical equipment and affect normal use. To avoid this, after the equipment is powered off, a suitable short-circuit connector is usually inserted into the aforementioned connector to short-circuit the multiple contacts within the connector, thereby improving the stability of the electrical equipment. Existing short-circuit connectors generally have two structural types:

[0003] The first type of short-circuit connector has a lap joint on the insulator between two adjacent mounting holes for assembling shorting contacts. For example, a short-circuit connector disclosed in CN202189988U has a shorting spring fixed on the partition wall between the same set of shorting holes. The shorting spring includes a contact claw protruding into the shorting hole, which is used to short-circuit two power contacts inserted into the set of shorting holes. This type of short-circuit connector not only requires additional auxiliary tooling to install the lap joint, making the assembly process complex, but also requires a certain radial space to fix the lap joint, occupying too much radial space. When the connector has multiple cores, the radial gap between the cores is generally less than 1 mm, making it impossible to assemble the aforementioned lap joint.

[0004] The second type of short-circuit connector has multiple short-circuit contacts inside its connector housing 30. The non-mating ends of these short-circuit contacts 10 are all rigidly connected to the short-circuit plate 20, such as... Figure 1 and Figure 2 As shown, the non-interlocking end of the shorting contact and the shorting plate are connected by a riveting structure. When subjected to external force, the riveting is prone to cracking, leading to material leakage after injection molding and ultimately resulting in excessive contact resistance. Furthermore, there is a defect where interference fit between the shorting plate and the shorting contact is difficult. For example... Figure 3 As shown, the non-intercepting end of the shorting contact is soldered to the shorting board using high-temperature solder wire. Under stress or prolonged vibration, the solder joint is prone to detachment, causing the shorting circuit to break. For example... Figure 4 and Figure 5 As shown, the connection between the non-interlocking end of the shorting contact and the shorting plate is by compression, and the two adopt a transition fit. The compression pressure is relatively large, which can easily affect the support surface of the shorting contact. Summary of the Invention

[0005] To address the shortcomings of existing first-type short-circuit connectors, which require additional auxiliary tooling for assembling the overlapping parts and occupy excessive radial space, and existing second-type short-circuit connectors, which suffer from unreliability under long-term stress and vibration conditions due to the rigid connection between the shorting contact and the shorting plate, the present invention aims to propose a novel shorting contact structure. This structure allows for rapid assembly of the aforementioned shorting contact onto the corresponding short-circuit connector without additional auxiliary tooling. Furthermore, the assembled shorting structure does not occupy additional radial space, and the shorting contact and the shorting plate on the short-circuit connector have elastic contact, which avoids the effects of long-term stress and provides good vibration resistance.

[0006] The purpose of this invention is achieved by the following technical solution: a shorting contact, including a plug end 101 and a shorting end 102, wherein a plurality of shorting arms 1022 are formed on the shorting end by a plurality of axially distributed circumferential slots 1021 for interference fit with shorting plug holes on the shorting plate.

[0007] With the aforementioned technical solution, the shorting contact has a simple structure and a simple assembly process. It can be installed onto the insulator of the shorting connector using a conventional insertion structure without the need for additional auxiliary tooling. After installation, the shorting arm of the shorting contact and the shorting socket on the shorting board are interference-fitted, without occupying additional radial space. This is especially suitable for connectors with small structures or a large number of cores. At the same time, the axial slotting achieves multi-point elastic contact between the overhanging shorting arm and the shorting board. Compared with existing hard connection methods such as riveting, welding, and pressing, the shorting process is simpler and can avoid the effects of long-term stress. It has good vibration resistance, reliable contact, and can effectively ensure the shorting state of multiple contacts within the connector.

[0008] Furthermore, the free end of the shorting arm 1022 is provided with a radially extending protrusion 1023, which is used to make an interference fit with the shorting socket on the shorting plate.

[0009] With the aforementioned design, the protrusion makes the short-circuit end of the short-circuit contact a ball-head structure. The aforementioned ball-head slotted structure is simple to process and is conducive to mass production.

[0010] Furthermore, the shorting contact 10 located between the mating end and the shorting end is provided with a limiting structure for mounting the shorting contact on the insulator of the shorting connector.

[0011] Furthermore, the limiting structure is one of the recess structure 1031 and the boss structure 1032.

[0012] Furthermore, when the limiting structure is a recessed structure, the short-circuit contact located between the recessed structure and the short-circuit end is also provided with a guide surface 104.

[0013] The present invention also achieves its objective by the following technical solution: a short-circuit connector, comprising a connector housing 30 and an insulator 20 disposed inside the connector housing, wherein a plurality of mounting holes on the insulator are respectively provided with corresponding short-circuit contacts 10, and a short-circuit plate 40 is provided at the non-mating end of the connector housing, wherein a plurality of short-circuit sockets 401 are provided on the short-circuit plate, and the short-circuit arms 1022 of the short-circuit contacts 10 are inserted into the corresponding short-circuit sockets 401 and the two are interference fit.

[0014] Using the aforementioned technical solution, when the equipment is powered off and the connector installed on the equipment needs to be short-circuited, the aforementioned short-circuit connector is inserted into the connector. The mating end of the short-circuit contact and the contact of the connector are in contact and conduction. Since the short-circuit end of the short-circuit contact is in contact and conduction with the short-circuit board, all contacts in the connector are in a short-circuit state.

[0015] Furthermore, the short-circuit connector also includes a locking structure disposed on the outside of the connector housing. The locking structure is used to cooperate with the adapter locking structure on the outside of the connector installed on the device to lock the short-circuit connector and the connector in the mating state.

[0016] Furthermore, the short-circuit socket 401 is a blind socket.

[0017] Furthermore, a second guide surface 4011 is provided at the inlet of the short-circuit socket 401.

[0018] Furthermore, the shorting board 40 includes a first main body 402 and a second main body 403. The first main body is provided with a plurality of shorting holes 401, and the second main body is located outside the first main body and a chamber 404 is provided between the two for the non-mating end of the connector housing to be inserted.

[0019] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a structure in the prior art where the shorting contact and the shorting plate are connected by riveting.

[0021] Figure 2 Is adopted Figure 1 A schematic diagram of an existing short-circuit connector with the structure shown.

[0022] Figure 3 This is a schematic diagram of a structure in the prior art where the shorting contact and the shorting plate are connected by welding.

[0023] Figure 4 and Figure 5 This is a schematic diagram of the structure in the prior art where the shorting contact and the shorting plate are connected by compression.

[0024] Figure 6 This is an isometric schematic diagram of a first embodiment of a short-circuit contact element of the present invention.

[0025] Figure 7 This is a schematic diagram of the structure of a first embodiment of a short-circuit contact element of the present invention.

[0026] Figure 8 This is a schematic diagram of the structure of a second embodiment of a short-circuit contact of the present invention.

[0027] Figure 9 This is an isometric schematic diagram of a first embodiment of a short-circuit connector according to the present invention.

[0028] Figure 10 This is a schematic diagram of the structure of a first embodiment of a short-circuit connector according to the present invention.

[0029] Figure 11 yes Figure 8 A schematic diagram of the structure of the middle and short connecting plate.

[0030] Wherein: 10-short-circuit contact, 101-mating end, 102-short-circuit end, 1021-axial slot, 1022-short-circuit arm, 1023-protrusion, 1031-recess structure, 1032-boss structure, 104-guide surface, 20-insulator, 201-boss, 30-connector housing, 40-short-circuit plate, 401-short-circuit socket, 4011-second guide surface, 402-first main body, 403-second main body, A-sealing area. Detailed Implementation

[0031] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0033] Furthermore, the terms "first or I," "second or II," "third or III," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first or I," "second or II," or "third or III" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] This invention designs a shorting contact, which includes a mating end and a shorting end. The mating end is used to insert and remove contacts within a connector mounted on a device to achieve contact and conductivity between the contacts. The shorting end has several axially distributed slots forming several overhanging shorting arms. The shorting contact has a simple structure and a simple assembly process. It can be installed onto the insulator of a shorting connector using a conventional insertion structure without additional auxiliary tooling. After installation, the shorting arms of the shorting contact and the shorting holes on the shorting plate are interference-fitted to achieve shorting between cores and between cores and the shell, without occupying additional radial space. This is particularly suitable for connectors with small structures or a large number of cores. Simultaneously, the axial slots achieve multi-point elastic contact between the overhanging shorting arms and the shorting plate. Compared to existing hard connection methods such as riveting, welding, and pressing, the shorting process is simpler and avoids long-term stress effects. It has good vibration resistance, reliable contact, and effectively ensures the shorting state of multiple contacts within the connector.

[0036] Please see Figure 6 , Figure 7 and Figure 8 In this embodiment, a short-circuit contact 10 has a mating end 101 and a short-circuit end 102. The mating end can be... Figure 6 The pore-like structure shown, or Figure 8The needle-like structure shown has two overhanging short-circuit arms 1022 formed by two circumferentially distributed axial slots 1021 on the short-circuit end. The free end of the short-circuit arm is provided with a radially extending protrusion 1023 so that the short-circuit end of the short-circuit contact is a ball-head structure. The aforementioned ball-head slotted structure is simple to process and is conducive to mass production. When the short-circuit contact is installed on the short-circuit connector, the short-circuit arm 1022 is inserted into the corresponding short-circuit socket on the short-circuit plate and the protrusion 1023 and the short-circuit socket form an interference fit. Several protrusions and the inner wall of the short-circuit socket form multi-point elastic contact.

[0037] Furthermore, the shorting contact 10 located between the mating end and the shorting end is provided with a limiting structure for mounting the shorting contact on the insulator of the shorting connector. Specifically, as shown... Figure 6 and Figure 7 As shown, in this embodiment, the limiting structure can be a recessed structure 1031 provided on the shorting contact. Please also refer to... Figure 9 and Figure 10 The position of the mating end is defined as "front" and the position of the short-circuit end as "rear". A boss 201 is provided on the inner wall of the mounting hole on the insulator 20. The boss 201 is inserted into the aforementioned recess structure 1031, thus limiting the short-circuit contact in both the front and rear directions, completing the installation of the short-circuit contact on the insulator of the short-circuit connector. Furthermore, the short-circuit contact located between the recess structure and the short-circuit end is also provided with a guide surface 104. During assembly, the short-circuit contact is inserted from front to back into the corresponding mounting hole on the insulator 20, and the guide surface 104 drives the boss 201 into the corresponding recess structure 1031. Or as... Figure 8 As shown, the limiting structure can be a boss structure 1032 provided on the shorting contact. Corresponding to this limiting structure, the short-circuit connector is provided with two insulators 20 distributed in the front-back direction. During assembly, the shorting contact is first inserted into the mounting hole on one of the insulators, and the insulator located on one side of the mounting hole and one side of the boss structure form a stop fit. Then, the other insulator is inserted into the short-circuit connector until the insulator forms a stop fit with the opposite side of the boss structure from the other side, thereby realizing the limiting of the shorting contact in the front-back direction, that is, completing the installation of the shorting contact on the short-circuit connector.

[0038] In other embodiments of the present invention, the mating ends of the shorting contact can also be of a plate-like structure.

[0039] In other embodiments of the present invention, the number of axial slots can be adjusted according to the specifications of the contacts in the connector installed on the device, for example, three, four, etc.

[0040] In other embodiments of the present invention, the protrusion on the shorting arm can be omitted. In this case, the shorting arm is tilted away from the axis of the shorting contact, so that the angle between the extension direction of the shorting arm and the axis of the shorting contact is an acute angle. This can also achieve an interference fit between the shorting arm and the shorting socket on the shorting plate. Furthermore, the outer wall of the free end of the shorting arm can be chamfered to facilitate elastic contact between the inner wall of the shorting arm and the shorting socket.

[0041] In other embodiments of the invention, the guide surface on the shorting contact can be omitted, and the guide surface can be provided on one side of the boss.

[0042] Based on any of the foregoing embodiments, please refer to Figure 9 and Figure 10 This embodiment also designs a short-circuit connector, including a connector housing 30 and an insulator 20 disposed inside the connector housing. A plurality of mounting holes on the insulator are respectively provided with corresponding short-circuit contacts 10. The non-mating end of the connector housing is provided with a short-circuit plate 40, which is provided with a plurality of short-circuit sockets 401. The short-circuit arms 1022 of the short-circuit contacts 10 are inserted into the corresponding short-circuit sockets 401 with an interference fit. When the device is powered off, if the connector installed on the device needs to be short-circuited, the aforementioned short-circuit connector is inserted into the connector. The mating ends of the short-circuit contacts and the contacts of the connector become conductive. Since the short-circuit ends of the short-circuit contacts are all conductively connected to the short-circuit plate, all contacts within the connector are short-circuited.

[0043] The short-circuit connector also includes a locking structure disposed on the outside of the connector housing. This locking structure cooperates with an adapter locking structure on the outside of the connector mounted on the device to lock the short-circuit connector and the connector in the mated state. Specifically, in this embodiment, the locking structure is a connecting nut 50; however, other types of existing locking structures may be used in other embodiments of the invention.

[0044] Please see Figure 10 In this embodiment, the short-circuit socket 401 is a blind socket. Furthermore, a second guide surface 4011 is provided at the inlet of the short-circuit socket, which facilitates the entry of the short-circuit arm into the corresponding short-circuit socket.

[0045] Please see Figure 11In this embodiment, the shorting plate 40 includes a first main body 402 and a second main body 403. The first main body is provided with a plurality of shorting holes 401, and the second main body is located outside the first main body, with a cavity 404 between them for the non-mating end of the connector housing to be inserted. In this embodiment, the shorting plate is assembled onto the non-mating end of the connector housing by insertion. Furthermore, to improve the connection strength between the shorting plate and the connector housing, the inner wall of the second main body can be threaded or snap-fitted to the outer wall of the non-mating end of the connector housing. Of course, in other embodiments of the present invention, the second main body can be omitted. In this case, the non-mating end of the connector housing can be appropriately extended so that the non-mating end of the connector housing at least partially covers the shorting plate, and the outer wall of the shorting plate can be connected to the inner wall of the non-mating end of the connector housing in a connection fit, such as insertion fit, thread fit, or snap fit.

[0046] The above description is merely a preferred embodiment of the present invention. Any simple modifications, equivalent changes, and alterations made by those skilled in the art to the above embodiments without departing from the scope of the present invention and based on the technical essence of the present invention shall still fall within the scope of the present invention.

Claims

1. A shorting contact comprising a mating end (101), a shorting end (102), characterized in that, A plurality of axial split grooves (1021) are distributed circumferentially on the short-circuit end to form a plurality of short-circuit arms (1022) for interference fit with the short-circuit insertion holes on the short-circuit plate.

2. A shorting contact as claimed in claim 1, characterized in that The free end of the short-circuit arm (1022) is provided with a radially extending protrusion (1023) for interference fit with the short-circuit insertion hole on the short-circuit plate.

3. The shorting contact of claim 1, wherein, The short-circuit contact (10) between the mating end and the short-circuit end is provided with a limiting structure for mounting the short-circuit contact on the insulator of the short-circuit connector.

4. A shorting contact as claimed in claim 3, wherein The limiting structure is one of a recess structure (1031) and a boss structure (1032).

5. A shorting contact as claimed in claim 4, wherein, When the limiting structure is a recess structure, the short-circuit contact between the recess structure and the short-circuit end is further provided with a guide surface (104).

6. A short-circuit connector comprising a connector housing (30), an insulator (20) arranged inside the connector housing, characterized in that A plurality of mounting hole positions on the insulator are respectively provided with the short-circuit contact (10) of any one of claims 1-5, the non-mating end of the connector shell is provided with a short-circuit plate (40), the short-circuit plate is provided with a plurality of short-circuit insertion holes (401), the short-circuit arm (1022) of the short-circuit contact (10) is inserted into the corresponding short-circuit insertion hole (401) and the two are interference fit.

7. A shorting connector according to claim 6, wherein The short-circuit connector further comprises a locking structure arranged outside the connector shell, the locking structure is used for cooperating with the matching locking structure outside the connector mounted on the equipment to realize the locking of the short-circuit connector and the connector in the plugged state.

8. A shorting connector as claimed in claim 6, wherein The short-circuit insertion hole (401) is a blind hole.

9. A shorting connector as claimed in claim 6, wherein A second guide surface (4011) is arranged at the entrance of the short-circuit insertion hole (401).

10. A shorting connector as claimed in claim 6, wherein The short-circuit plate (40) comprises a first main body portion (402) and a second main body portion (403), the first main body portion is provided with a plurality of short-circuit insertion holes (401), the second main body portion is located outside the first main body portion and is provided with a cavity (404) for inserting the non-mating end of the connector shell.

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