Multi-terminal 65A lithium electric connector

By increasing the number of terminals and using an assist rod structure in the lithium battery connector, the stability problem of the lithium battery connector under high current charging is solved, achieving higher current carrying capacity and charging stability.

CN224153673UActive Publication Date: 2026-04-21DONGGUAN LINOYAINTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN LINOYAINTELLIGENT TECH CO LTD
Filing Date
2025-04-18
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing lithium battery connectors exhibit poor charging stability when carrying high currents at high charging voltages.

Method used

A multi-terminal 65A lithium battery connector is designed. By setting multiple signal terminals, insert terminals, and frame terminals on the female and male connectors respectively, the number of terminals is increased. The connection stability is improved by using an assist rod to drive the male connector into or out of the female connector.

Benefits of technology

It significantly improves the current carrying capacity and charging stability of the connector, meeting the charging requirements of 65A high current.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of lithium electric connectors, and particularly relates to a multi-terminal 65A lithium electric connector which is characterized in that a female seat is provided with a slot, a first butt joint seat is arranged in the slot, the first butt joint seat is provided with four first connecting holes and a second connecting hole, a first signal terminal is arranged in each first connecting hole, and a second signal terminal is arranged in each second connecting hole; a first frame port terminal is arranged in the second connecting hole, and the slot is also provided with a first insertion piece terminal; the male head is provided with a butt joint groove corresponding to the first butt joint seat, the butt joint groove is internally provided with four second signal terminals and second insertion piece terminals, the second signal terminals are arranged at intervals, the second signal terminals are used for being electrically connected with the first signal terminals, and the second insertion piece terminals are located on one sides of the second signal terminals; the second insertion piece terminal is used for being electrically connected with the first frame port terminal. According to the multi-terminal 65A lithium electric connector, the current bearing capacity and the charging stability of the connector can be remarkably improved, so that the charging requirement of 65A large current is met.
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Description

Technical Field

[0001] This application relates to the field of lithium battery connector technology, and in particular to a multi-terminal 65A lithium battery connector. Background Technology

[0002] In related technologies, common male and female connector designs typically only include two sets of terminals. This structure often fails to meet the requirements when carrying high currents with high charging voltages, resulting in poor charging stability.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] In view of at least one of the above technical problems, this application provides a multi-terminal 65A lithium battery connector, which solves the problem of poor charging stability of lithium battery connectors.

[0005] This application provides a multi-terminal 65A lithium battery connector, including:

[0006] The female connector has a slot containing a first mating seat. The first mating seat has four first connecting holes and four second connecting holes. Each first connecting hole contains a first signal terminal, and each second connecting hole contains a first frame terminal. The slot also contains a first insert terminal. The male connector has a mating groove corresponding to the first mating seat. Each mating groove contains a second signal terminal and four second insert terminals. The second signal terminals are arranged at intervals and are used for electrical connection with the first signal terminals. The second insert terminals are located on one side of the second signal terminals and are used for electrical connection with the first frame terminal. The male connector also has a third connecting hole containing a second frame terminal, which is used for electrical connection with the first insert terminal. The assist rod is rotatably connected to the male connector and is used to move the male connector into or out of the female connector.

[0007] The multi-terminal 65A lithium battery connector of this application increases the number of terminals by setting multiple signal terminals, insert terminals and frame terminals on the female and male connectors respectively, which significantly improves the current carrying capacity and charging stability of the connector, thereby meeting the charging requirements of 65A high current.

[0008] In some possible implementations, the outer wall of the male head is provided with a pivot, and the assist rod is provided with a pivot hole that mates with the pivot.

[0009] In some possible implementations, a limiting block is provided on the outer peripheral wall of the rotating shaft, the limiting block is spaced apart from the outer outer wall of the male end, and the assist rod is also provided with a limiting hole that cooperates with the limiting block, the limiting hole being connected to the rotating hole.

[0010] In some possible implementations, the outer wall of the male head is provided with a stop block, and the assist rod is provided with a first abutment groove and a second abutment groove that respectively cooperate with the stop block.

[0011] In some possible implementations, the outer wall of the female seat is provided with a mating part, and the assist rod is provided with a groove that mates with the mating part.

[0012] The present application will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a structural diagram of the multi-terminal 65A lithium battery connector provided in this embodiment;

[0015] Figure 2 for Figure 1 The first structural diagram of the Zhonggong head;

[0016] Figure 3 for Figure 1 Structural diagram of the central mother seat;

[0017] Figure 4 for Figure 1 First structural diagram of the middle assist rod;

[0018] Figure 5 for Figure 1 Second structural diagram of the middle assist rod;

[0019] Figure 6 for Figure 1 The second structural diagram of the Zhonggong head;

[0020] In the diagram: 100, female connector; 110, slot; 120, first mating seat; 130, first connecting hole; 140, second connecting hole;

[0021] 150. First insert terminal; 160. Mating component;

[0022] 200, Male connector; 210, mating groove; 220, second signal terminal; 230, second insert terminal; 240, third connecting hole;

[0023] 250. Rotating shaft; 260. Limit block; 270. Stop block;

[0024] 300, assist rod; 310, rotating hole; 320, limiting hole; 330, first abutment groove; 340, sliding groove; 350, second abutment groove; Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0026] like Figures 1 to 4 As shown, this embodiment provides a multi-terminal 65A lithium battery connector, including: a female connector 100, a male connector 200, and an assist rod 300.

[0027] The female connector 100 has a slot 110, within which a first mating seat 120 is provided. The first mating seat 120 has a first connecting hole 130 and a second connecting hole 140. There are four first connecting holes 130, each containing a first signal terminal. The second connecting holes 140 each contain a first frame terminal. The slot 110 also has a first insert terminal 150. The male connector 200 has a mating groove 210 corresponding to the first mating seat 120. The mating groove 210 contains a second signal terminal 220 and a second insert terminal 230. The signal terminals 220 are four in number and spaced apart. The second signal terminal 220 is used to electrically connect with the first signal terminal. The second insert terminal 230 is located on one side of the second signal terminal 220 and is used to electrically connect with the first frame terminal. The male connector 200 is also provided with a third connecting hole 240, in which a second frame terminal is provided. The second frame terminal is used to electrically connect with the first insert terminal 150. The assist rod 300 is rotatably connected to the male connector 200 and is used to drive the male connector 200 into or out of the female connector 100.

[0028] When the male connector 200 is inserted into the female connector 100, the four second signal terminals 220 on the male connector 200 pass through their respective first connection holes 130 and are electrically connected to the first signal terminals in the first connection holes 130. The second insert terminal 230 on the male connector 200 passes through the second connection hole 140 and is electrically connected to the first frame terminal in the second connection hole 140. The first insert terminal 150 on the female connector 100 passes through the third connection hole 240 and is electrically connected to the second frame terminal in the third connection hole 240.

[0029] Furthermore, by engaging the first mating seat 120 of the slot 110 with the mating groove 210 of the male connector 200, during the insertion of the male connector 200 into the female connector 100, the outer wall of the first mating seat 120 contacts and rubs against the side wall of the mating groove 210. Since the outer wall of the first mating seat 120 has a total of 6 surfaces, and the shape of the mating groove 210 is adapted to the shape of the first mating seat 120, the contact area between the first mating seat 120 and the mating groove 210 is larger, thereby effectively improving the connection stability between the male connector 200 and the female connector 100.

[0030] The multi-terminal 65A lithium battery connector in this embodiment increases the number of terminals by setting multiple signal terminals, insert terminals and frame terminals on the female connector 100 and the male connector 200 respectively, which significantly improves the current carrying capacity and charging stability of the connector, thereby meeting the charging requirements of 65A high current.

[0031] like Figures 1 to 4 As shown, in some embodiments, the outer wall of the male connector 200 is provided with a pivot 250, and the assist rod 300 is provided with a rotating hole 310 that mates with the pivot 250. The pivot 250 mates with the rotating hole 310, allowing the assist rod 300 to connect to the male connector 200. The assist rod 300 can rotate around the pivot 250 on the outer wall of the male connector 200, thereby causing the assist rod 300 to drive the male connector 200 to insert into or remove from the female connector 100.

[0032] like Figures 1 to 4 As shown, in some embodiments, the outer peripheral wall of the rotating shaft 250 is provided with a limiting block 260, the limiting block 260 is spaced apart from the outer outer wall of the male head 200, and the assist rod 300 is also provided with a limiting hole 320 that cooperates with the limiting block 260, the limiting hole 320 is connected to the rotating hole 310.

[0033] Understandably, the limiting hole 320 is positioned close to the male connector 200. When the assist rod 300 is installed onto the male connector 200, the assist rod 300 is first rotated to a certain position so that the limiting block 260 can pass through the limiting hole 320 and be placed in the rotating hole 310. When the assist rod 300 rotates relative to the male connector 200, the rotating shaft 250 and the limiting block 260 on the rotating shaft 250 rotate relative to the rotating hole 310. At the same time, the limiting block 260 can also prevent the rotating shaft 250 from disengaging from the rotating hole 310 along its axial direction, thereby preventing the assist rod 300 from disengaging from the male connector 200.

[0034] Furthermore, the assist rod has a symmetrical structure, with rotating holes and limiting holes on both the left and right halves. The rotating holes on the left and right halves are coaxial, and this axis is defined as the rotation axis. The limiting holes on the left and right halves are staggered, extending along different circumferential directions of the rotation axis. Correspondingly, the positions of the limiting blocks on the two rotating axes on different sides are also staggered. This design allows for separate installation or removal of the assist rod on each side during installation or removal, thereby improving the connection stability between the assist rod and the male connector.

[0035] like Figures 1 to 4 As shown, in some embodiments, the outer wall of the male head 200 is provided with a stop block 270, and the assist rod 300 is provided with a first abutment groove 330 and a second abutment groove 350 respectively cooperating with the stop block 270.

[0036] It is understood that by setting a stop block 250 on the outer wall of the male connector 200 and configuring a matching first abutment groove 330 or second abutment groove 350 on the assist rod 300, when the operator drives the assist rod 300 to rotate to achieve the insertion or separation of the male connector 200 and the female connector 100, the stop block 250 forms a limiting fit in the first abutment groove 330 or second abutment groove 350 of the assist rod 300.

[0037] For example, when the assist rod rotates and the male and female connectors are in the locked position, the stop block abuts against the second abutment groove, limiting excessive rotation of the assist rod and ensuring that the male connector is fully inserted and the first seal reaches the preset compression amount at the inner edge of the chamfer. As another example, when the assist rod rotates in the opposite direction, bringing the male and female connectors to the initial stage, the stop block abuts against the first abutment groove, limiting excessive rotation of the assist rod. Simultaneously, it also restricts the position of the assist rod, allowing it to remain in the initial position for easy docking of the male and female connectors.

[0038] Understandably, when the male and female connectors are in the initial docking stage, the stop block is located in the first abutment groove and abuts against the first abutment groove; when the male and female connectors are in the locking stage, the stop block is located in the second abutment groove and abuts against the second abutment groove.

[0039] like Figures 1 to 4 As shown, in some embodiments, the outer wall of the female seat 100 is provided with a mating member 160, and the assist rod 300 is provided with a sliding groove 340 that mates with the mating member 160. By engaging the mating member 160 on the female seat 100 with the sliding groove 340 of the assist rod 300, it is convenient for the assist rod 300 to drive the male head 200 to insert into or remove from the female seat 100.

[0040] For example, when the male connector 200 mates with the female connector 100, the male connector 200 is moved so that the mating part 160 enters the opening of the groove 340. The assist rod 300 is rotated, and the mating part 160 moves along the groove 340 and away from the opening of the groove 340. The distance between one end of the assist rod 300 and the male connector 200 gradually decreases, and the assist rod 300 drives the male connector 200 to insert into the female connector 100.

[0041] For example, when the male head 200 disengages from the female head 100, the assist rod 300 is rotated in the opposite direction, and the mating part 160 moves along the slide groove 340 and toward the opening of the slide groove 340. The distance between one end of the assist rod 300 and the male head 200 gradually increases, and the assist rod 300 drives the male head 200 to disengage from the female head 100.

[0042] like Figures 1 to 5 As shown, in some embodiments, the male connector end is provided with a first seal that mates with the slot opening, and the slot is provided with a second seal that mates with the male connector end.

[0043] Understandably, the first seal is annular and fitted onto the male connector end.

[0044] Understandably, the second seal is annular and fits snugly against the inner wall of the slot.

[0045] When the male connector and female connector are locked, the outer side of the first seal abuts against the edge of the slot opening to achieve a seal, and the outer edge of the lower surface of the male connector abuts against the second seal, thus forming a double seal.

[0046] like Figures 1 to 5 As shown, in some embodiments, the outer wall of the male head is provided with a first retaining groove 281, a stroke groove 282 and a second retaining groove 283. The first retaining groove and the second retaining groove are located on both sides of the stroke groove. The assist rod is provided with a protrusion 340, which can cooperate with the first retaining groove, the stroke groove and the second retaining groove respectively.

[0047] During the initial docking of the male and female connectors, the protrusion engages in the first retaining groove, fixing the assist rod relative to the male connector. This facilitates alignment of the male and female connectors and eliminates the need for additional support of the assist rod, simplifying operation. Rotating the assist rod disengages the protrusion from the first retaining groove and into the travel groove, where it slides. Once the male and female connectors are fully inserted, the protrusion disengages from the travel groove and engages in the second retaining groove.

[0048] Specifically, the stroke groove is an arc-shaped groove, and the first retaining groove and the second retaining groove are circular grooves.

[0049] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "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 application 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 application.

[0050] In the description of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0052] In the description of the embodiments of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] The above are merely preferred embodiments of this application and do not constitute any limitation on this application. Any person skilled in the art can make many possible variations and modifications to the technical solution of this application, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this application. Therefore, all equivalent changes made based on the shape, structure, and principle of this application without departing from the content of the technical solution of this application should be covered within the protection scope of this application.

Claims

1. A multi-terminal 65A lithium electrical connector characterized by, include: The female connector is provided with a slot, and a first mating seat is provided in the slot. The first mating seat is provided with a first connecting hole and a second connecting hole. There are four first connecting holes. A first signal terminal is provided in the first connecting hole, and a first frame terminal is provided in the second connecting hole. The slot is also provided with a first insert terminal. The male connector has a mating groove corresponding to the first mating seat. The mating groove has a second signal terminal and a second insert terminal. There are four second signal terminals arranged at intervals. The second signal terminals are used to electrically connect with the first signal terminal. The second insert terminal is located on one side of the second signal terminal and is used to electrically connect with the first frame terminal. The male connector also has a third connecting hole. The third connecting hole has a second frame terminal, which is used to electrically connect with the first insert terminal. An assist rod is rotatably connected to the male connector, and the assist rod is used to drive the male connector into or out of the female connector.

2. The multi-terminal 65 A lithium electrical connector of claim 1, wherein, The outer wall of the male head is provided with a pivot, and the assist rod is provided with a pivot hole that mates with the pivot.

3. The multi-terminal 65 A lithium electrical connector of claim 2, wherein, The outer peripheral wall of the rotating shaft is provided with a limiting block, which is spaced apart from the outer peripheral wall of the male head. The assist rod is also provided with a limiting hole that cooperates with the limiting block, and the limiting hole communicates with the rotating hole.

4. The multi-terminal 65 A lithium electrical connector of claim 1, wherein, The outer wall of the male head is provided with a stop block, and the assist rod is provided with a first abutment groove and a second abutment groove that respectively cooperate with the stop block.

5. The multi-terminal 65 A lithium electrical connector of claim 1, wherein, The outer wall of the female seat is provided with a mating part, and the assist rod is provided with a sliding groove that mates with the mating part.