Lithium battery charging interface assembly

By introducing multiple springs and inclined plate structures into the lithium battery charging interface, combined with the design of sliders and lead screw shafts, the problems of loose charging interface and accidental contact are solved, achieving stable fixation of the charger connector and improving charging efficiency.

CN223978226UActive Publication Date: 2026-03-06GUANGZHOU BEAUTY ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-18
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Lithium battery charging interfaces are prone to loosening or poor contact during charging, and are easily damaged by accidental contact, which can cause power outages and affect charging efficiency.

Method used

A lithium battery charging interface assembly was designed, which uses multiple first springs of different sizes and inclined plate structures, combined with a mechanical structure of slider, lead screw and rotating shaft, to achieve stable fixation of the charger connector through elastic compression and sliding engagement.

Benefits of technology

It effectively prevents power outages caused by loose charging connectors or accidental contact, improving charging stability and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of lithium batteries, and particularly relates to a lithium battery charging interface assembly which comprises a lithium battery interface, a contact pin is fixedly installed in the lithium battery interface, a charger connector is inserted in the lithium battery interface, and a first groove is formed in the top end in the lithium battery interface. A plurality of first grooves are formed in the inclined plate, a plurality of first springs are fixedly mounted in the first grooves, and the plurality of first springs are fixedly mounted in sequence from the position close to the outer side of the lithium battery interface to the position close to the interior of the lithium battery interface. And an inclined plate is rebounded through the elasticity of a plurality of first springs, so that the inclined plate is clamped with a clamping groove, the charger connector and the lithium battery interface are temporarily fixed, and the phenomenon of power failure caused by poor contact and accidental touch is avoided.
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Description

Technical Field

[0001] This utility model belongs to the field of lithium battery technology, and in particular relates to lithium battery charging interface components. Background Technology

[0002] Lithium-ion electric vehicles refer to electric vehicles that use high-capacity lithium-ion batteries. They are characterized by their compact size and light weight and are mainly divided into: ternary lithium battery electric vehicles, aluminum frame lithium electric vehicles, and 24V lithium electric assist vehicles. After a lithium battery is completely depleted, it needs to be recharged for continued use. Therefore, a complete lithium battery needs to include a charging port to facilitate charging and enable energy-saving and sustainable use.

[0003] In the above technical solution, since lithium batteries need to be charged after use, the charging port of the charger may become loose or have poor contact when charging for a long time. Or, if someone accidentally touches the wire while charging, the lithium battery may not be able to charge properly in time, thus affecting its use. Utility Model Content

[0004] This utility model addresses the problems of existing lithium battery charging interface assemblies by proposing the following technical solution: a lithium battery charging interface assembly, comprising: a lithium battery interface, wherein pins are fixedly installed inside the lithium battery interface, a charger connector is inserted into the lithium battery interface, a first groove is formed at the top of the lithium battery interface, and multiple first springs are fixedly installed inside each of the first grooves, the multiple first springs being sequentially fixedly installed from the outside of the lithium battery interface to the inside of the lithium battery interface, and having different sizes, and an inclined plate is fixedly installed at the other end of the multiple first springs, and a slot is formed at the top of the charger connector.

[0005] As a preferred embodiment of the above technical solution, a second groove is provided at the bottom of the lithium battery interface, and a rectangular frame is fixedly installed at the top of the second groove. Sliding grooves are provided on both sides of the inside of the rectangular frame, and a slider is slidably connected in the sliding groove.

[0006] As a preferred embodiment of the above technical solution, a lead screw is threadedly connected to the inner wall of the middle part of the slider. The lead screw is rotatably connected to the inner wall of the rectangular frame. One end of the lead screw passes through and extends to the outer wall of the rectangular frame and is fixedly installed with a rotating shaft. The other end of the rotating shaft passes through and extends to the bottom of the outer wall of the lithium battery interface and is fixedly installed with a turntable.

[0007] As a preferred embodiment of the above technical solution, the top of both sides of the rectangular frame is provided with circular grooves, and a round rod is movably inserted into each of the two circular grooves. A partition is fixedly installed at the top of the round rod, and a limit rod is fixedly installed at the top of the middle part of the partition.

[0008] As a preferred embodiment of the above technical solution, a second spring is sleeved on the outer wall of the limiting rod, and the top and bottom ends of the second spring are respectively fixedly installed inside the top end of the second groove and the top end of the partition. A fixing block is fixedly installed at the bottom end of the middle part of the partition.

[0009] As a preferred embodiment of the above technical solution, a through hole is provided between the lithium battery interface and the second groove, and a limiting groove is provided at the bottom end of the charger connector at the top of the through hole, and the limiting rod engages with the limiting groove.

[0010] The beneficial effects of this utility model are as follows:

[0011] (1) By squeezing the inclined plate, the inclined plate moves into the first groove by the squeezing of multiple first springs, so that the charger connector is inserted into the lithium battery interface for charging. The inclined plate rebounds by the elasticity of multiple first springs, so that the inclined plate engages with the slot, which facilitates the temporary fixing of the charger connector and the lithium battery interface, avoiding the phenomenon of power failure due to poor contact and accidental contact.

[0012] (2) The turntable drives the rotating shaft and lead screw to rotate, causing the slider to move and thus press the fixed plate. The inclined side of the slider contacts the inclined side of the fixed block, causing the moving slider to drive the fixed plate to move upward. This causes the partition to slide in the circular groove through the two round rods, causing the partition to move upward. This pushes the limit rod out of the through hole and engages with the limit groove, thus fixing the charger connector and preventing accidental contact during charging that could cause power failure, thereby improving charging efficiency. Attached Figure Description

[0013] Figure 1 This is a 3D view of the lithium battery charging interface assembly;

[0014] Figure 2 The diagram shows the structural positions of the pin and the limiting rod.

[0015] Figure 3 The diagram shows the structural positions of the charger connector and the card slot.

[0016] Figure 4 The diagram shows a cross-sectional view of the lithium battery charging interface assembly.

[0017] Figure 5 The diagram shown is an exploded view of the rectangular frame, round rod, and partition.

[0018] Figure 6 The diagram shows the structural positions of the lithium battery interface, pins, and the first groove.

[0019] Figure 7 The diagram shows the structural positions of the charger connector and the limiting groove.

[0020] In the diagram: 1. Lithium battery interface; 2. Pin; 3. Charger connector; 4. First groove; 5. First spring; 6. Inclined plate; 7. Slot; 8. Second groove; 9. Rectangular frame; 10. Slider; 11. Lead screw; 12. Rotating shaft; 13. Turntable; 14. Circular groove; 15. Round rod; 16. Partition; 17. Limiting rod; 18. Second spring; 19. Fixing block; 20. Through hole; 21. Limiting groove. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0022] Example 1

[0023] This utility model provides a lithium battery charging interface component, such as... Figure 1-7 As shown, it includes a lithium battery interface 1, a pin 2 fixedly installed inside the lithium battery interface 1, a charger connector 3 inserted into the lithium battery interface 1, a first groove 4 opened at the top of the lithium battery interface 1, and multiple first springs 5 ​​fixedly installed inside each of the first grooves 4. The multiple first springs 5 ​​are fixedly installed sequentially from the outside of the lithium battery interface 1 to the inside of the lithium battery interface 1, and are of different sizes. An inclined plate 6 is fixedly installed at the other end of the multiple first springs 5. A slot 7 is opened at the top of the charger connector 3.

[0024] By aligning the charger connector 3 with the pin 2, the charger connector 3 is inserted into the lithium battery connection, allowing the pin 2 to enter the charger connector 3. When the charger connector 3 is inserted into the lithium battery interface 1, it presses against the inclined plate 6, thereby pressing against multiple first springs 5 ​​of different sizes. This causes the inclined plate 6 to move into the first groove 4 under the pressure of the multiple first springs 5, allowing the charger connector 3 to charge after being inserted into the lithium battery interface 1. The elasticity of the multiple first springs 5 ​​causes the inclined plate 6 to rebound, thus engaging the inclined plate 6 with the slot 7, temporarily fixing the charger connector 3 and the lithium battery interface 1 to prevent poor contact and accidental power outages.

[0025] like Figure 2-7As shown, a second groove 8 is formed at the bottom of the lithium battery interface 1. A rectangular frame 9 is fixedly installed at the top of the second groove 8. Sliding grooves are formed on both sides of the inner side of the rectangular frame 9. A slider 10 is slidably connected in the sliding groove. The slider 10 is trapezoidal in shape, and one side of the slider 10 is inclined. A lead screw 11 is threadedly connected to the inner wall of the middle part of the slider 10. The lead screw 11 is rotatably connected to the inner wall of the rectangular frame 9. One end of the lead screw 11 passes through and extends to the outer wall of the rectangular frame 9 and is fixedly installed with a rotating shaft 12. The other end of the rotating shaft 12 passes through and extends to the bottom of the outer wall of the lithium battery interface 1 and is fixedly installed with a rotating shaft 12. The rectangular frame 9 has circular grooves 14 on both top sides of the disc 13. A round rod 15 is movably inserted into each of the two circular grooves 14. A partition 16 is fixedly installed at the top of the round rod 15. A limit rod 17 is fixedly installed at the top of the middle part of the partition 16. A second spring 18 is sleeved on the outer wall of the limit rod 17. The top and bottom of the second spring 18 are respectively fixedly installed at the top of the second groove 8 and the top of the partition 16. A fixing block 19 is fixedly installed at the bottom of the middle part of the partition 16. The fixing block 19 is trapezoidal in shape and is inclined on the side of the slider 10 that is inclined.

[0026] By rotating the turntable 13, the rotating shaft 12 of the turntable 13 rotates, driving the lead screw 11 to rotate and simultaneously moving the slider with the assistance of the slide groove. This causes the slider 10 to move and become misaligned with the fixed block 19. The slider 10 and the fixed block 19 are trapezoidal, and the corresponding upper and lower sides of the slider 10 and the fixed block 19 are inclined surfaces. This causes the slider 10 to contact the corresponding inclined surfaces of the fixed block 19, thereby causing the fixed block 19 to move downward. This causes the partition 16 to slide within the circular groove 14 via the two round rods 15, which serves as a limit. This allows the partition 16 to move downward via the elasticity of the second spring 18, driving the limiting rod 17 to prevent [further movement]. The displacement causes the limiting rod 17 to enter the through hole 20. When charging is needed, the turntable 13 is rotated again, causing the turntable 13 to drive the rotating shaft 12 and the lead screw 11 to rotate, causing the slider 10 to move and thus press against the fixed plate. The inclined side of the slider 10 contacts the inclined side of the fixed block 19, causing the moving slider 10 to drive the fixed plate to move upward, thereby causing the partition 16 to slide in the circular groove 14 through the two round rods 15, causing the partition 16 to move upward, thus pushing the limiting rod 17 out of the through hole 20 and engaging with the limiting groove 21, thereby fixing the charger connector 3, preventing accidental contact during charging that could cause power failure, and improving charging efficiency.

[0027] like Figure 4-7As shown, a through hole 20 is provided between the lithium battery interface 1 and the second groove 8. The bottom end of the charger connector 3 is located at the top of the through hole 20 and a limiting groove 21 is provided. The limiting rod 17 engages with the limiting groove 21, pushing the limiting rod 17 out of the through hole 20 and engaging with the limiting groove 21, thereby fixing the charger connector 3 to prevent accidental contact during charging and thus improve charging efficiency.

[0028] Working principle: During use, rotating the turntable 13 causes the rotating shaft 12 to rotate, which in turn rotates the lead screw 11 and moves the slider with the assistance of the slide groove. This causes the slider 10 to move and become misaligned with the fixed block 19. The slider 10 and the fixed block 19 are trapezoidal, and the corresponding sides of the slider 10 and the fixed block 19 are inclined surfaces. This causes the slider 10 to contact the corresponding inclined surfaces of the fixed block 19, causing the fixed block 19 to move downward. This causes the partition 16 to slide in the circular groove 14 through the two round rods 15, which serves as a limit. This allows the partition 16 to move downward through the elasticity of the second spring 18, preventing displacement. This allows the limit rod 17 to enter the through hole 20. When charging is required, the charger connector 3 is aligned with the pin 2, and the charger connector 3 is inserted into the lithium battery connection. When the lithium battery interface 1 is inserted, the charger connector 3 presses against the inclined plate 6, thereby displacing the battery into multiple sizes. Multiple first springs 5 ​​compress the inclined plate 6, causing it to move into the first groove 4. This allows the charger connector 3 to be inserted into the lithium battery interface 1 for charging. The elasticity of the multiple first springs 5 ​​rebounds the inclined plate 6, causing it to engage with the slot 7. This temporarily fixes the charger connector 3 to the lithium battery interface 1, preventing power outages due to poor contact or accidental contact. The turntable 13 is then rotated, causing the rotating shaft 12 and lead screw 11 to rotate, moving the slider 10 and compressing the fixing plate. The inclined side of the slider 10 contacts the inclined side of the fixing block 19, causing the moving slider 10 to move the fixing plate upward. This causes the partition 16 to slide within the circular groove 14 via two round rods 15, moving the partition 16 upward. This pushes the limiting rod 17 out of the through hole 20 and engages with the limiting groove 21, thus fixing the charger connector 3 and preventing power outages due to accidental contact during charging, thereby improving charging efficiency.

[0029] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A lithium battery charging interface assembly, characterized in that, Include: Lithium battery interface (1), the lithium battery interface (1) inside fixedly installed with the pin (2), the lithium battery interface (1) inside is inserted with charger connector (3), the lithium battery interface (1) inside top end is equipped with first recess (4), the first recess (4) inside is fixedly installed with a plurality of first spring (5), a plurality of the first spring (5) from close to the lithium battery interface (1) outside to close to the lithium battery interface (1) inside is fixedly installed in turn, and size is different, a plurality of the first spring (5) another end is fixedly installed with inclined plate (6), the top end of charger connector (3) is equipped with the slot (7); The both sides top end of rectangular frame (9) are equipped with circular slot (14), the both sides circular slot (14) are movably inserted with round bar (15), the top end of round bar (15) is fixedly installed with partition (16), the middle top end of partition (16) is fixedly installed with limit rod (17); The outer wall of limit rod (17) is sleeved with second spring (18), the top end and bottom end of second spring (18) are fixedly installed in the top end of second recess (8) and the top end of partition (16) respectively, the middle bottom end of partition (16) is fixedly installed with fixed block (19); The lithium battery interface (1) and second recess (8) are equipped with through hole (20), the bottom end of charger connector (3) is located in the top end of through hole (20) and is equipped with limit slot (21), the limit rod (17) and limit slot (21) are engaged.

2. The lithium battery charging interface assembly of claim 1, wherein, The bottom end of lithium battery interface (1) is equipped with second recess (8), the second recess (8) is fixedly installed with rectangular frame (9) in the top end, the both sides inside of rectangular frame (9) are equipped with sliding slot, the sliding slot is slidably connected with sliding block (10).

3. The lithium battery charging interface assembly of claim 2, wherein, The middle inner wall of sliding block (10) is threadedly connected with lead screw (11), the lead screw (11) is rotatably connected with the inner wall of rectangular frame (9), one end of lead screw (11) penetrates and extends to the outer wall of rectangular frame (9) and is fixedly installed with rotating shaft (12), the other end of rotating shaft (12) penetrates and extends to the outer wall bottom end of lithium battery interface (1) and is fixedly installed with rotating disc (13).