Single-core high-current high-voltage connector

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By designing a single -core high -current high -voltage connector, the problem that traditional connectors cannot meet the problem of stable and efficient transmission in high -voltage fast charging and energy storage technology in high -voltage fast charging and energy storage technology, and realized high sealing, modular design and high protection levels, which improved the improvement, which improved, and improved. Product stability and safety.

CN222422437UActive Publication Date: 2025-01-28YUEQING BADA OPTICAL ELECTRICAL TECH CO LTD

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Patent Information

Application Number: CN202420339326.6
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-02-23
Publication Date: 2025-01-28
Estimated Expiration: 2034-02-23

AI Technical Summary

Technical Problem

In the high-voltage fast charging and energy storage technology, there is a combination of female terminals and wiring noses by riveting pressure, which leads to a large internal resistance value and a high temperature increase, which cannot meet the stable and efficient transmission of large currents. At the same time, the wiring type range is small, The plugging operation takes up a lot of space, which is not conducive to the use of narrow spaces.

Method used

It is designed with a single -core large -current high -voltage connector, which is characterized by the wiring nose and the mother terminal. The embedded part is plastic in the plug shell, and is equipped with a sealing cover, a thread clip and a tight nut to achieve a modular design and high sealing. sex.

Benefits of technology

By reducing the internal resistance of the parent terminal, maintain a lower temperature and improve the stability of the product; realize the disassembly connection, select different types of wiring methods; transmit large current in small volumes, convenient and fast production and installation and maintenance; there is a temperature sensor, real -time in real time Monitor temperature; reaches high protection levels to improve safety and reliability.

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Abstract

The utility model discloses a single-core high-current high-voltage connector. According to the technical scheme, the connector comprises a connector plug and a connector socket which are matched in an inserted mode, the connector plug comprises a plug shell and a wiring nose arranged in the plug shell, the connector socket comprises a socket shell and a connector bar arranged in the socket shell, a female terminal is integrally formed at the upper end of the wiring nose, and a male terminal is formed at the lower end of the female terminal. A crown spring is arranged in the female terminal, and a male terminal matched with the female terminal in an inserted mode is integrally formed at the upper end of the line bank. The connector has the advantages that the female terminal and the wiring nose are integrally formed, so that the internal resistance of the female terminal is reduced, a product can be kept at a relatively low temperature in a working state, and the stability of the product is improved; the copper bars and the male terminals are detachably connected with the socket shell, and different types of wiring modes can be selected, such as the copper bars with nuts, the copper bars with kidney-shaped through holes, threaded columns and the like.

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Description

Technical Field

[0001] The utility model belongs to the field of connectors, and in particular relates to a single-core connector. Background Art

[0002] Connectors, also known as connectors, plugs and sockets in China. Generally refers to electrical connectors. That is, a device that connects two active devices and is used to transmit current. In today's new energy field, high-voltage fast charging and energy storage technology are emerging industries that have attracted much attention, and connectors are one of the core components in this field. The performance of connectors directly affects the stable and efficient transmission of current. However, traditional connectors have the following disadvantages: 1. The female terminal and the wiring nose are combined by riveting, the internal resistance is large, the temperature rises, and it cannot meet the stable and efficient transmission of large currents; 2. The range of wiring types is small, which is not conducive to the selection of usage needs; 3. In the existing scheme, the connector plug-in operation occupies a large space, which is not conducive to the use of small spaces. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a single-core high-current and high-voltage connector.

[0004] In order to solve the above problems, the technical solution adopted by the utility model includes: a connector plug and a connector socket for plugging and matching, characterized in that: the connector plug includes a plug housing and a wiring nose arranged in the plug housing, and the connector socket includes a socket housing and a wiring row arranged in the socket housing, the upper end of the wiring nose is integrally formed with a female terminal, a crown spring is arranged in the female terminal, and the upper end of the wiring row is integrally formed with a male terminal that plugs and matches with the female terminal.

[0005] The single-core high-current high-voltage connector is characterized in that: the wiring nose and the female terminal insert are injection molded in the plug housing, and the rear end of the plug housing is provided with a sealing sleeve, a wire clamp and a locking nut, the sealing sleeve is sleeved on the rear end of the plug housing and wrapped around the wiring nose and the cable connected to the wiring nose, the wire clamp is sleeved on the sealing sleeve, the locking nut is connected to the threaded opening at the rear end of the plug housing, and a closing opening matching the wire clamp is provided inside.

[0006] The single-core high-current high-voltage connector is characterized in that: a first sealing ring is provided at the rear of the plug housing to seal with the locking nut, a second sealing ring is provided at the front end of the plug housing to seal with the inner wall of the socket housing, a third sealing ring is provided on the male terminal to seal with the inner wall of the socket housing, and a fourth sealing ring is provided at the lower end of the flange of the socket housing.

[0007] The single-core high-current high-voltage connector is characterized in that: the front end of the locking nut is provided with circumferentially arranged retaining teeth, and the rear end of the plug housing is provided with retaining spring pieces that cooperate with the retaining teeth.

[0008] The single-core high-current high-voltage connector is characterized in that a positioning groove is provided in the female terminal, and the crown spring is confined in the positioning groove.

[0009] The single-core high-current high-voltage connector is characterized in that a positioning step and a group of circumferentially arranged retaining claws are provided in the socket housing, a first flange engaged with the retaining claws is provided on the male terminal, and a second flange positioned with the positioning step is provided on the terminal block.

[0010] The single-core high-current high-voltage connector is characterized in that: a retaining buckle is inserted on the plug shell, an arc-shaped retaining portion is provided at the upper end of the retaining buckle, and an elastic lock buckle is provided at the lower end, a lock hook is provided on the elastic lock buckle, an annular groove that is engaged with the arc-shaped retaining portion is provided at the front end of the socket shell, and a hanging platform that is hung with the lock hook is provided in the plug shell.

[0011] The single-core high-current high-voltage connector is characterized in that an unlocking window is provided at a position of the plug housing corresponding to the hanging platform.

[0012] The single-core high-current and high-voltage connector is characterized in that a spring is provided at the front end of the retaining buckle to abut against the plug housing.

[0013] The single-core high-current and high-voltage connector is characterized in that a temperature sensor is plugged into one side of the socket housing through a slot.

[0014] The advantages of the single-core high-current high-voltage connector of the utility model are as follows:

[0015] 1. The female terminal and the wiring nose are integrally formed, which reduces the internal resistance of the female terminal, enables the product to maintain a lower temperature during operation, and improves the stability of the product;

[0016] 2. The copper busbar and the male terminal are detachably connected to the socket shell, and different types of wiring methods can be selected, such as copper busbar with nuts, copper busbar with waist-shaped through holes, threaded columns, etc.

[0017] 3. Modular design of product shape enables the product to transmit larger and more stable current in a smaller volume, while facilitating rapid production, easy installation and maintenance;

[0018] 4. Equipped with a temperature sensor, the system can effectively monitor the temperature of the product in real time during use;

[0019] 5. The product has a protection level of IP6K9K in the plug-in state, and the connector socket can also stably maintain a protection level of IP67 in one direction, which improves safety and reliability and can effectively protect high-value objects in the equipment;

[0020] 6. Easy to install and unlock.

[0021] The utility model is further described below in conjunction with the accompanying drawings of the specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional view of the single-core high-current and high-voltage connector of the utility model;

[0023] Figure 2 It is a cross-sectional view of the connector plug of the utility model;

[0024] Figure 3 It is an exploded view of the connector plug of the utility model;

[0025] Figure 4 It is a cross-sectional view of the connector socket of the utility model;

[0026] Figure 5 It is an exploded view of the connector socket of the utility model;

[0027] Figure 6 It is a structural schematic diagram of the wiring nose and female terminal of the utility model;

[0028] Figure 7 It is a structural schematic diagram of the wiring block and the male terminal of the utility model;

[0029] Figure 8 It is a structural schematic diagram of the anti-retraction buckle of the utility model;

[0030] Fig. 9 It is a cross-sectional view of the single-core high-current high-voltage connector of the utility model, showing the connection state of the retaining buckle;

[0031] Fig.10 The cross-sectional view of the connector plug of the utility model shows the connection state of the retaining spring. DETAILED DESCRIPTION

[0032] Reference Figure 1-10As shown, the single-core high-current high-voltage connector of the utility model includes a connector plug 1 and a connector socket 2 that are plugged in and matched. The connector plug 1 includes a plug housing 3 and a wiring nose 4 arranged in the plug housing 3. The connector socket 2 includes a socket housing 5 and a wiring row 6 arranged in the socket housing 5. The upper end of the wiring nose 4 is integrally formed with a female terminal 7 through a stretching process, and a crown spring 8 is arranged in the female terminal 7. The upper end of the wiring row 6 is integrally formed with a male terminal 9 that plugs and matches with the female terminal 7. When the connector plug 1 and the connector socket 2 are plugged in, the male terminal 9 is inserted into the female terminal 7, and under the tension of the crown spring 8, a tight connection is achieved, thereby realizing the transmission of current.

[0033] Preferably, the wiring nose 4 and the female terminal 7 are insert-molded in the plug housing 3, and a sealing sleeve 10, a wire clamp 11 and a clamping nut 12 are provided at the rear end of the plug housing 3. The sealing sleeve 10 is sleeved on the rear end of the plug housing 3 and wrapped around the wiring nose 4 and the cable 13 connected to the wiring nose 4. The wire clamp 11 is sleeved on the sealing sleeve 10, and the clamping nut 12 is connected to the threaded opening 14 at the rear end of the plug housing 3, and a gathering opening 15 matching the wire clamp 11 is provided inside the clamping nut 12, and the gathering opening 15 is ideally conical. When the clamping nut 12 is tightened, the wire clamp 11 is forced to clamp the cable 13. Through the above structure, the modular design of the connector is realized, which has the advantages of small size, high strength, good sealing performance and stability.

[0034] Preferably, the tail of the plug housing 3 is provided with a first sealing ring 16 which is sealed with the locking nut 12, the front end of the plug housing 3 is provided with a second sealing ring 17 which is sealed with the inner wall of the socket housing 5, the male terminal 9 is provided with a third sealing ring 18 which is sealed with the inner wall of the socket housing 5, and the lower end of the flange 35 of the socket housing 5 is provided with a fourth sealing ring 36. Through the above structure, the protection level of the product can reach IP6K9K in the plug-in state, and the connector socket can also stably maintain the protection level of IP67 in one direction, thereby improving safety and reliability.

[0035] Preferably, the front end of the clamping nut 12 is provided with circumferentially arranged anti-retraction teeth 19, and the rear end of the plug housing 3 is provided with an anti-retraction spring piece 20 that cooperates with the anti-retraction teeth 19. When the clamping nut 12 is tightened, the anti-retraction spring piece 20 is clamped into the anti-retraction teeth 19 to play a role in preventing the clamping nut 12 from retreating and loosening.

[0036] Preferably, a positioning groove 21 is provided in the female terminal 7 , and the crown spring 8 is confined in the positioning groove 21 to stabilize the crown spring 8 .

[0037] Preferably, the socket housing 5 is provided with a positioning step 23 and a group of circumferentially arranged stop claws 22, the male terminal 9 is provided with a first flange 24 engaged with the stop claw 22, and the terminal block 6 is provided with a second flange 25 positioned with the positioning step 23. When the male terminal 9 and the terminal block 6 are inserted into the socket housing 5, the positioning step 23 and the stop claw 22 in the socket housing 5 are used to fix the male terminal 9 and the terminal block 6.

[0038] Preferably, a stop buckle 26 is inserted into the plug housing 3, an arc-shaped snap-fitting portion 27 is provided at the upper end of the stop buckle 26, an elastic lock buckle 28 is provided at the lower end of the stop buckle 26, a lock hook 29 is provided on the elastic lock buckle 28, and an annular snap groove 30 is provided at the front end of the socket housing 5 to engage with the arc-shaped snap-fitting portion 27. A hanging platform 31 is provided in the plug housing 3 to hang with the lock hook 29 to prevent the stop buckle 26 from falling off. When the connector plug 1 is plugged into the connector socket 2, the arc-shaped snap-fitting portion 27 of the stop buckle 26 is inserted into the annular snap groove 30 of the socket housing 5 to lock the connector socket 2, thereby improving the connection strength and preventing loosening.

[0039] Preferably, the plug housing 3 is provided with an unlocking window 32 at a position corresponding to the hanging platform 31. The front end of the anti-retraction buckle 26 is provided with a spring 33 against the plug housing 3. When unlocking, an unlocking button is inserted into the unlocking window 32 to separate the lock hook 29 from the hanging platform 31, and under the action of the spring 33, the anti-retraction buckle 26 is ejected, thereby achieving unlocking.

[0040] Preferably, a temperature sensor 34 is plugged into one side of the socket housing 5 through a slot 37 .

[0041] As mentioned above, the present invention is not limited in any form. Although the present invention has been disclosed as a preferred implementation case as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modifications to the equivalent implementation cases of equivalent changes by using the above-disclosed structures and technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above implementation cases based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A single-core high-current high-voltage connector, comprising a connector plug (1) and a connector socket (2) that are mated together, characterized in that: The connector plug (1) comprises a plug housing (3) and a wiring nose (4) arranged in the plug housing (3); the connector socket (2) comprises a socket housing (5) and a wiring row (6) arranged in the socket housing (5); a female terminal (7) is integrally formed at the upper end of the wiring nose (4); a crown spring (8) is arranged in the female terminal (7); and a male terminal (9) for plugging and mating with the female terminal (7) is integrally formed at the upper end of the wiring row (6).

2. The single-core high-current high-voltage connector according to claim 1, characterized in that: The wiring nose (4) and the female terminal (7) are insert-molded in the plug housing (3), and a sealing sleeve (10), a wire clamp (11) and a locking nut (12) are provided at the rear end of the plug housing (3); the sealing sleeve (10) is sleeved on the rear end of the plug housing (3) and wrapped around the wiring nose (4) and a cable (13) connected to the wiring nose (4); the wire clamp (11) is sleeved on the sealing sleeve (10); the locking nut (12) is connected to a threaded opening (14) at the rear end of the plug housing (3) and is provided with a retracting opening (15) inside thereof that cooperates with the wire clamp (11).

3. The single-core high-current high-voltage connector according to claim 2, characterized in that: The rear end of the plug housing (3) is provided with a first sealing ring (16) which is in sealing cooperation with the locking nut (12); the front end of the plug housing (3) is provided with a second sealing ring (17) which is in sealing cooperation with the inner wall of the socket housing (5); the male terminal (9) is provided with a third sealing ring (18) which is in sealing cooperation with the inner wall of the socket housing (5); and the lower end of the flange (35) of the socket housing (5) is provided with a fourth sealing ring (36).

4. The single-core high-current high-voltage connector according to claim 2, characterized in that: The front end of the locking nut (12) is provided with circumferentially arranged stop teeth (19), and the rear end of the plug housing (3) is provided with a stop spring (20) that cooperates with the stop teeth (19).

5. The single-core high-current high-voltage connector according to claim 1, characterized in that: A positioning groove (21) is provided in the female terminal (7), and the crown spring (8) is confined in the positioning groove (21).

6. The single-core high-current high-voltage connector according to claim 1, characterized in that: A positioning step (23) and a group of circumferentially arranged stop claws (22) are provided in the socket housing (5); a first flange (24) engaged with the stop claws (22) is provided on the male terminal (9); and a second flange (25) positioned with the positioning step (23) is provided on the terminal block (6).

7. The single-core high-current high-voltage connector according to claim 1, characterized in that: A stop buckle (26) is inserted into the plug housing (3), the stop buckle (26) is provided with an arc-shaped clamping portion (27) at the upper end and an elastic lock buckle (28) at the lower end, the elastic lock buckle (28) is provided with a lock hook (29), the front end of the socket housing (5) is provided with an annular clamping groove (30) that is clamped with the arc-shaped clamping portion (27), and a hanging platform (31) that is hung with the lock hook (29) is provided inside the plug housing (3).

8. The single-core high-current high-voltage connector according to claim 7, characterized in that: An unlocking window (32) is provided on the plug housing (3) at a position corresponding to the hanging platform (31).

9. The single-core high-current high-voltage connector according to claim 7, characterized in that: A spring (33) is provided at the front end of the retaining buckle (26) and abuts against the plug housing (3).

10. The single-core high-current high-voltage connector according to claim 1, characterized in that: A temperature sensor (34) is plugged into one side of the socket housing (5) via a slot (37).