Battery connector convenient to plug and unplug

Abstract

The utility model relates to the field of connectors, in particular to a battery connector convenient to plug and unplug, which comprises a male end joint and a female end joint, the male end joint can be plugged with the female end joint in a matching way, the female end joint comprises a shell and a conductive elastic sheet, a wiring cavity is arranged in the shell, and two ends of the shell are respectively provided with a wiring opening and a plug port. The conductive elastic piece is installed in the wiring cavity through the insulating retainer and comprises a positioning base body, the two ends of the positioning base body are bent to form side plates, clamping conductive plates are arranged at the ends, close to the plugging port, of the side plates, the two clamping conductive plates are symmetrical to each other, and the second clamping part and the first clamping part are arranged front and back in the plugging direction. When an inserting piece of the male end connector is inserted, the inserting piece firstly makes contact with the first clamping part to generate first-stage clamping force, after the inserting piece continues to be inserted, the inserting piece makes contact with the second clamping part to generate second-stage clamping force, and the clamping force of the second clamping part and the first clamping part on the inserting piece needs to be overcome at the same time when the inserting piece is pulled out. And the mechanical characteristics of convenient insertion and stable extraction are formed.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and in particular to battery connectors that are easy to plug in and unplug. Background Technology

[0002] As a core component of electrical connection systems, connector terminals directly impact signal transmission quality and power transmission efficiency between devices due to their structural design and reliability. In electronic equipment, automotive electronics, and industrial equipment, terminals must achieve stable electrical conduction and mechanical retention within a limited space, while simultaneously meeting stringent requirements such as high-frequency mating and unmating, high current carrying capacity, and tolerance to complex environments. In particular, the structural design of the female conductive spring directly determines the connector's mating and unmating feel, contact impedance stability, and vibration resistance, making it a key technological breakthrough in the trend towards miniaturization and high-density connectors.

[0003] Existing connector female contact springs generally adopt a dual-function side-by-side structure design, with the female conductive spring typically made of a single molded metal sheet. In this structure, the clamping part for holding the male insert and the planar contact part responsible for conductive contact are arranged horizontally side-by-side, sharing the same elastic support arm. This layout achieves both insertion fixation and conductive contact functions through the deformation of a single elastic body, with the clamping force of the clamping part and the contact pressure of the contact part provided by the same elastic system.

[0004] Because the clamping part and the contact part share the same elastic support arm and are on the same plane of action, the insertion force and the extraction force tend to be consistent during the insertion and extraction of the male terminal. When inserting, it is necessary to overcome the resistance equivalent to the extraction force, which makes the insertion operation laborious and easily accelerates the wear of the terminal. When pulling out, there is a lack of effective gradient maintenance, which can easily cause the contact pressure to decay in a vibration environment, thereby causing the contact impedance to increase or even momentary power failure. Utility Model Content

[0005] In order to overcome the shortcomings of existing technical solutions, this utility model provides a battery connector that is easy to plug and unplug, which can effectively solve the technical problem of consistent force required for connector plugging and unplugging.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A battery connector for easy insertion and removal includes a male connector and a female connector. The male connector can be mated and inserted with the female connector. The female connector includes a housing and a conductive spring. The housing has a wiring cavity, and the two ends of the housing have wiring openings and insertion interfaces, respectively. The conductive spring is mounted in the wiring cavity by an insulating retainer. The conductive spring includes a positioning base, and the two ends of the positioning base are bent to form side plates. A clamping conductive plate is provided at the end of the side plate near the insertion interface. The two clamping conductive plates are symmetrical to each other. The clamping conductive plate includes a first elastic part, a second elastic part, a first clamping part, and a... The second clamping part, the first elastic part and the second elastic part are connected to the side plate side by side, and there is a movable gap between the first elastic part and the second elastic part. The second clamping part is located at the end of the second elastic part away from the side plate, and the first clamping part is located at the end of the first elastic part away from the side plate. The sum of the widths of the first elastic part, the second elastic part and the movable gap is equal to the width of the side plate. The length of the first elastic part is greater than the total length of the second elastic part and the second clamping part. The width of the first clamping part is equal to the width of the side plate. An insertion gap is formed between the opposite second clamping part and the opposite first clamping part.

[0008] The male connector includes a plug shell and a plug piece. The plug shell is provided with a mating opening and a wiring platform. One end of the plug piece is bolted to the surface of the wiring platform. The end of the plug piece away from the wiring platform extends into the mating opening. The plug pieces can be paired and inserted into the movable gap. The second clamping part and the first clamping part can clamp the surface of the plug piece.

[0009] Furthermore, the housing is composed of a spring cover for protecting the outer shell. One end of the spring cover can be inserted into the protective outer shell, and the insertion interface is located at the end of the spring cover away from the protective outer shell. An insulating retainer is fixedly installed inside the spring cover.

[0010] Furthermore, the inner wall of the insulating retainer is provided with a positioning part and an elastic clamping piece, and the inner wall of the side plate is provided with a protruding clamping point. One end of the elastic clamping piece is pressed against the inner wall of the side plate, and the other end passes around the positioning part and abuts against the clamping point.

[0011] Furthermore, a slidable push block is provided inside the insulating retainer, one end of which contacts the surface of the elastic clamping piece, and the other end of the push block away from the elastic clamping piece extends to the outside of the insulating retainer.

[0012] Furthermore, both the second clamping part and the first clamping part have outwardly expanding guide slopes at the ends away from the side plate.

[0013] Furthermore, the wiring opening is provided with an elastic tightening part and a tightening cap. The tightening cap is threadedly connected to the wiring opening, and the inner wall of the tightening cap can squeeze the elastic tightening part to shrink towards the center. A wire hole is provided at the end of the tightening cap away from the housing.

[0014] Furthermore, the surface of the plug-in shell is provided with a rotatable fixing buckle, and the surface of the shell is provided with positioning protrusions, which can engage with the fixing buckle.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The female connector arranges the second clamping part and the first clamping part in a front-to-back manner along the insertion direction, working in conjunction with the independent first and second elastic parts. When the male connector's insertion piece is inserted, the insertion piece first contacts the first clamping part to generate a first-stage clamping force, and then contacts the second clamping part to generate a second-stage clamping force. When withdrawing, it needs to overcome the clamping forces of both the second and first clamping parts on the insertion piece, forming a mechanical characteristic of easy insertion and stable withdrawal. The redundant support system formed by the dual elastic parts can maintain dual contact protection under extreme working conditions. When either elastic part fails, the remaining structure can still maintain contact pressure, significantly reducing the risk of battery system open circuit. The first clamping part adopts a design with the same width as the side plate to ensure maximum conductive contact area. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0017] Figure 2 This is a three-dimensional schematic diagram of the male connector in this utility model.

[0018] Figure 3 This is a three-dimensional schematic diagram of the female connector in this utility model;

[0019] Figure 4 This is an exploded view of the female connector structure in this utility model;

[0020] Figure 5 This is a three-dimensional schematic diagram of the insulating retainer and conductive spring in this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the insulating retainer and the conductive spring in this utility model;

[0022] Figure 7 This is a schematic diagram of the conductive spring clip holding the plug-in piece in this utility model;

[0023] The diagram is labeled as follows: 1-Housing shell, 101-Protective outer shell, 102-Spring cover, 2-Conductive spring, 201-Positioning base, 202-Side plate, 2021-Clamping point, 203-Clamping conductive plate, 204-First elastic part, 205-Second elastic part, 206-First clamping part, 207-Second clamping part, 208-Movement gap, 209-Plug-in gap, 3-Wiring cavity, 4-Wiring opening, 401-Elastic tightening part, 5-Plug-in interface, 6-Insulation retainer, 601-Positioning part, 7-Elastic clamping piece, 8-Push block, 9-Tightening cap, 10-Plug-in shell, 1001-Mating opening, 1002-Wiring platform, 11-Plug-in piece, 12-Male connector, 13-Female connector, 14-Fixing buckle, 15-Positioning protrusion. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] The following is combined Figures 1-7 The present invention provides a detailed description of its easy-to-plug battery connector:

[0026] A battery connector for easy insertion and removal includes a male connector 12 and a female connector 13. The male connector 12 can be mated and inserted with the female connector 13. The female connector 13 includes a housing 1 and a conductive spring 2. A wiring cavity 3 is provided inside the housing 1. Wiring openings 4 and insertion interfaces 5 are respectively provided at both ends of the housing 1. The conductive spring 2 is installed in the wiring cavity 3 by an insulating retainer 6. The conductive spring 2 includes a positioning base 201. The two ends of the positioning base 201 are bent to form side plates 202. A clamping conductive plate 203 is provided at the end of the side plate 202 near the insertion interface 5. The two clamping conductive plates 203 are symmetrical to each other. The clamping conductive plate 203 includes a first elastic part 204, a second elastic part 205, a first clamping part 206, and a second clamping part 207. The elastic part 204 and the second elastic part 205 are connected side by side to the side plate 202. There is a movable gap 208 between the first elastic part 204 and the second elastic part 205. The second clamping part 207 is located at the end of the second elastic part 205 away from the side plate 202. The first clamping part 206 is located at the end of the first elastic part 204 away from the side plate 202. The sum of the widths of the first elastic part 204, the second elastic part 205 and the movable gap 208 is equal to the width of the side plate 202. The length of the first elastic part 204 is greater than the total length of the second elastic part 205 and the second clamping part 207. The width of the first clamping part 206 is equal to the width of the side plate 202. An insertion gap 209 is formed between the opposite second clamping part 207 and the opposite first clamping part 206.

[0027] The male connector 12 includes a plug shell 10 and a plug piece 11. The plug shell 10 is provided with a mating opening 1001 and a wiring platform 1002. One end of the plug piece 11 is bolted to the surface of the wiring platform 1002. The end of the plug piece 11 away from the wiring platform 1002 extends into the mating opening 1001. The plug piece 11 can be paired and inserted into the movable gap 208. The second clamping part 207 and the first clamping part 206 can clamp the surface of the plug piece 11.

[0028] The female connector 13 arranges the second clamping part 207 and the first clamping part 206 in the insertion direction, working in conjunction with the independent first and second elastic parts 205. When the male connector 12's insertion piece 11 is inserted, the insertion piece 11 first contacts the first clamping part 206 to generate a first-stage clamping force, and then contacts the second clamping part 207 to generate a second-stage clamping force. When pulled out, it needs to overcome the clamping forces of the second clamping part 207 and the first clamping part 206 on the insertion piece 11 simultaneously, forming a mechanical characteristic of easy insertion and stable extraction. The redundant support system formed by the dual elastic parts can maintain dual contact protection under extreme working conditions. When either elastic part fails, the remaining structure can still maintain contact pressure, significantly reducing the risk of battery system open circuit. The first clamping part 206 adopts a design with the same width as the side plate 202 to ensure maximum conductive contact area.

[0029] The housing 1 is composed of a spring cover 102 of a protective outer shell 101. One end of the spring cover 102 can be inserted into the protective outer shell 101. The insertion interface 5 is located at the end of the spring cover 102 away from the protective outer shell 101. An insulating retainer 6 is fixedly installed inside the spring cover 102. The housing 1 is composed of an independent protective outer shell 101 and a spring cover 102 nested together. The spring cover 102 can be inserted into the protective outer shell 101 to form a layered protective structure. This allows for modular assembly and maintenance of the female connector 13. The spring cover 102 serves as an independent carrier for the conductive spring 2, facilitating individual replacement or repair. At the same time, the protective outer shell 101 provides additional mechanical protection and electromagnetic shielding, enhancing the connector's resistance to external impacts.

[0030] The inner wall of the insulating retainer 6 is provided with a positioning part 601 and an elastic clamping piece 7, and the inner wall of the side plate 202 is provided with a protruding locking point 2021. One end of the elastic clamping piece 7 is pressed against the inner wall of the side plate 202, and the other end passes around the positioning part 601 and abuts against the locking point 2021. Through the cooperation of the positioning part 601 and the elastic clamping piece 7, and the positioning constraint of the locking point 2021 on the side plate 202, a self-locking mechanism is formed between the conductive spring 2 and the insulating retainer 6. The bidirectional pressing action of the elastic clamping piece 7 can absorb assembly tolerances and prevent axial movement of the spring during insertion and removal, ensuring the positional accuracy of the conductive contact surface. The geometric interference design of the locking point 2021 and the positioning part 601 further reduces the risk of component loosening. The insulating retainer 6 is provided with a sliding push block 8. One end of the push block 8 is in contact with the surface of the elastic clamping piece 7, and the other end of the push block 8 away from the elastic clamping piece 7 extends to the outside of the insulating retainer 6. When it is necessary to remove the conductive spring piece 2, pushing the push block 8 can actively release the locking state of the elastic clamping piece 7, avoiding the plastic deformation caused by repeated disassembly of the traditional snap-fit ​​structure, significantly extending the service life of the insulating retainer 6, and simplifying the maintenance process.

[0031] Both the second clamping part 207 and the first clamping part 206 have outwardly expanding guide slopes at their ends away from the side plate 202. The addition of outwardly expanding guide slopes at the ends of the second clamping part 207 and the first clamping part 206 automatically corrects alignment deviations during the initial insertion of the connector 11, reducing insertion resistance. The progressive guidance of the slopes to the edge of the connector 11 effectively prevents scratch damage to the spring clips.

[0032] The wiring opening 4 is equipped with an elastic tightening part 401 and a tightening cap 9. The tightening cap 9 is threadedly connected to the wiring opening 4. A wire-passing hole is provided at the end of the tightening cap 9 furthest from the housing 1. Through the threaded linkage between the elastic tightening part 401 and the tightening cap 9, the axial compression of the cap causes the elastic tightening part 401 to radially contract, achieving gradual locking of the cable. This structure is compatible with different wire diameters, avoiding the risk of wire core breakage caused by traditional crimping. Simultaneously, the rounded corner treatment at the edge of the wire-passing hole prevents cable bending fatigue.

[0033] The surface of the plug-in housing 10 is provided with a rotatable fixing buckle 14, and the surface of the housing 1 is provided with a positioning protrusion 15. The fixing buckle 14 can engage with the positioning protrusion 15, and the engagement of the fixing buckle 14 and the positioning protrusion 15 forms a secondary locking mechanism, which provides additional mechanical fixation after the plug-in piece 11 and the conductive spring piece 2 have completed electrical connection. This structure can resist accidental separation caused by vehicle vibration or external pulling force, and is especially suitable for power battery scenarios with high reliability requirements. In addition, the flip-out feature of the fixing buckle 14 facilitates quick unlocking operation with one hand.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A battery connector for easy insertion and removal, comprising a male connector and a female connector, wherein the male connector can be mated and inserted with the female connector, characterized in that: The female connector includes a housing and a conductive spring. The housing has a wiring cavity, and the two ends of the housing have wiring openings and insertion interfaces, respectively. The conductive spring is installed in the wiring cavity through an insulating retainer. The conductive spring includes a positioning base, and the two ends of the positioning base are bent to form side plates. A clamping conductive plate is provided at the end of the side plate near the insertion interface. The two clamping conductive plates are symmetrical to each other. The clamping conductive plate includes a first elastic part, a second elastic part, a second clamping part, and a first clamping part. The first elastic part and the second elastic part are connected to the side plate side by side. There is a movable gap between the first elastic part and the second elastic part. The second clamping part is located at the end of the second elastic part away from the side plate. The first clamping part is located at the end of the first elastic part away from the side plate. The sum of the widths of the first elastic part, the second elastic part, and the movable gap is equal to the width of the side plate. The length of the first elastic part is greater than the total length of the second elastic part and the second clamping part. The width of the first clamping part is equal to the width of the side plate. An insertion gap is formed between the opposite second clamping part and the opposite first clamping part. The male connector includes a plug shell and a plug piece. The plug shell is provided with a mating opening and a wiring platform. One end of the plug piece is bolted to the surface of the wiring platform. The end of the plug piece away from the wiring platform extends into the mating opening. The plug pieces can be paired and inserted into the movable gap. The second clamping part and the first clamping part can clamp the surface of the plug piece.

2. The battery connector for easy insertion and removal according to claim 1, characterized in that: The housing is composed of a spring cover for protecting the outer shell. One end of the spring cover can be inserted into the outer shell, and the insertion interface is located at the end of the spring cover away from the outer shell. An insulating retainer is fixedly installed inside the spring cover.

3. The battery connector for easy insertion and removal according to claim 1, characterized in that: The inner wall of the insulating retainer is provided with a positioning part and an elastic clamping piece, and the inner wall of the side plate is provided with a protruding clamping point. One end of the elastic clamping piece is pressed against the inner wall of the side plate, and the other end passes around the positioning part and abuts against the clamping point.

4. The battery connector for easy insertion and removal according to claim 3, characterized in that: The insulating retainer is provided with a sliding push block. One end of the push block is in contact with the surface of the elastic clamping piece, and the other end of the push block away from the elastic clamping piece extends to the outside of the insulating retainer.

5. The battery connector for easy insertion and removal according to any one of claims 1-4, characterized in that: Both the second clamping part and the first clamping part have outwardly expanding guide slopes at the ends away from the side plate.

6. The battery connector for easy insertion and removal according to any one of claims 1-4, characterized in that: The wiring opening is provided with an elastic tightening part and a tightening cap. The tightening cap is threaded to the wiring opening, and the inner wall of the tightening cap can squeeze the elastic tightening part to shrink towards the center. A wire hole is provided at the end of the tightening cap away from the housing.

7. The battery connector for easy insertion and removal according to any one of claims 1-4, characterized in that: The surface of the plug-in shell is provided with a rotatable fixing buckle, and the surface of the shell is provided with positioning protrusions, which can engage with the fixing buckle.

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