Immersed connector for battery pack

Abstract

The utility model relates to an immersed connector for a battery pack, which comprises the battery pack and a connector, the connector is mounted on the upper end face of the battery pack, the upper half part of the connector is provided with a first connecting part connected with external equipment and is positioned outside the battery pack, and the lower half part of the connector is provided with a second connecting part connected with a battery. And the lower half part is positioned in the battery pack. The utility model solves the technical problems in the prior art that the connector is arranged on the side surface of the battery pack, so that electrolyte leakage is easily caused and the sealing requirement is high.

Description

Technical Field

[0001] This invention relates to an immersion connector for battery packs. Background Technology

[0002] In existing technologies, connectors are typically located on the side of the battery pack to facilitate electrical connection with the batteries inside. While this design offers advantages such as convenient installation and efficient wiring, it also presents certain safety hazards. Specifically, battery packs usually contain a certain amount of electrolyte or other liquid media. When the connector is installed on the side of the battery pack, the liquid can easily leak or even seep out from the connection point during transportation, use, or tilting, causing corrosion to the connector, affecting its conductivity, and even posing safety risks such as short circuits and fires. Furthermore, the high sealing requirements at the connection between the connector and the battery pack shell increase the complexity and cost of the manufacturing process. Utility Model Content:

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an immersion connector for battery packs.

[0004] An immersion connector for a battery pack includes a battery pack and a connector. The connector is mounted on the upper surface of the battery pack. The upper half of the connector has a first connection part for connecting to an external device and is located outside the battery pack. The lower half of the connector has a second connection part for connecting to the battery and is located inside the battery pack.

[0005] Furthermore, the connector includes a top cover and a base, which are connected by a mortise and tenon structure.

[0006] Furthermore, a positioning post is provided at the center of the lower end face of the upper cover, and a positioning hole is provided on the upper end face of the base.

[0007] Furthermore, the lower end face of the lower cover is provided with an annular wall concentric with the positioning post, and there is a gap between the annular wall and the outer side of the positioning post, with the side wall of the base inserted into the gap.

[0008] Furthermore, a rubber ring is provided between the annular wall and the side wall of the base.

[0009] Furthermore, the upper end face of the cover is provided with a connecting post, and the bottom center of the connecting post is provided with a threaded hole. The first connecting part is installed on the connecting post by bolts.

[0010] Furthermore, the outer middle section of the base has a protruding mounting housing, the front end face of the mounting housing has a guide hole, the guide hole communicates with the positioning hole of the base, the second connecting part is inserted into the positioning hole from the side of the base through the guide hole, the bottom center of the positioning post has a threaded hole, and the second connecting part is installed on the positioning post by bolts.

[0011] Furthermore, the base is provided with a protective cover, which is a shell structure without a cover, and the side of the protective cover is provided with a clearance notch for mounting the shell.

[0012] Furthermore, the bottom surface inside the protective cover is provided with mounting holes, the side wall of the base is inserted into the mounting holes, and a rubber ring is provided between the side wall of the base and the inner wall of the mounting holes.

[0013] Furthermore, the inner wall of the protective cover is provided with at least two slide rails, the lower end face of the top cover is provided with a slider, and the surface of the slider is provided with a groove.

[0014] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0015] The original connector was located on the side of the battery pack. While this made it convenient to connect to the batteries inside the pack, it also made it easier for the battery fluid inside the pack to leak. Therefore, the connector was moved to the top of the battery pack. Since the height of the fluid inside the battery pack cannot exceed the height of the battery pack shell, leakage is less likely. The sealing requirements at the connection between the connector and the battery pack shell are also greatly reduced.

[0016] The upper part of the connector is located outside the battery pack and connects to external devices; the lower part is embedded inside the battery pack and connects to the battery, realizing a split design that effectively utilizes the limited space inside the battery pack.

[0017] The top cover and base are connected by a mortise and tenon structure, which has good positioning and shock resistance; positioning posts and positioning holes are provided to ensure accurate alignment during assembly and improve connection stability.

[0018] A rubber ring is provided between the base and the annular wall to provide a good seal and prevent liquid or dust from entering; an external protective cover is provided, which is a coverless shell structure to provide additional protection and improve the protection level; a rubber ring is also provided between the mounting hole and the base to further enhance the overall sealing performance.

[0019] Both the first and second connecting parts are connected by bolts, which facilitates disassembly and replacement; the second connecting part can be inserted from the side of the base to improve maintenance efficiency; the protective cover has a clearance notch to facilitate targeted operation and wiring.

[0020] The front end of the mounting housing has a guide hole to make the second connection part easier to insert; the slide rail and slider structure can realize modular sliding assembly, simplify the installation process, and improve assembly efficiency and reliability.

[0021] The top cover is equipped with connecting posts and threaded holes to support different types of external connections; the slide rail slider design provides convenience for subsequent component expansion or modular replacement. Attached Figure Description

[0022] Figure 1 This is an overall schematic diagram of the connector;

[0023] Figure 2 This is a cross-sectional view of the connector;

[0024] Figure 3 This is an assembly diagram of the connector and the protective cover;

[0025] Figure 4 This is a schematic diagram of the top cover;

[0026] In the figure, 1 is the first connecting part, 2 is the second connecting part, 3 is the top cover, 4 is the protective cover, 5 is the connecting column, 6 is the positioning column, 7 is the annular wall, 8 is the base, 9 is the mounting housing, 10 is the mounting hole, 11 is the slide rail, 12 is the positioning hole, and 13 is the slide groove. Detailed Implementation

[0027] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0028] An immersion connector for a battery pack includes a battery pack and a connector. The connector is mounted on the upper surface of the battery pack. The upper half of the connector is provided with a first connection part 1 for connecting to an external device and the upper half is located outside the battery pack. The lower half of the connector is provided with a second connection part 2 for connecting to the battery and the lower half is located inside the battery pack. The first connection part 1 and the second connection part 2 are both copper busbars.

[0029] Working principle: The original connector was located on the side of the battery pack. While this facilitated connection to the batteries inside the pack, it also made it easier for the battery fluid to leak. Therefore, the connector's installation position was changed to the top of the battery pack. Since the height of the fluid inside the battery pack cannot exceed the height of the battery pack shell, leakage is less likely. The sealing requirements at the connection between the connector and the battery pack shell are also greatly reduced. However, due to the change in the connector's installation position, its structure has also been modified to meet the requirement of connecting to the battery from above. The specific structure is as follows.

[0030] In one possible implementation, the connector includes a top cover 3 and a base 8, which are connected by a mortise and tenon joint. The mortise and tenon joint utilizes a complementary snap-fit ​​method to provide a reliable mechanical connection while ensuring structural alignment accuracy, making it suitable for mass production assembly scenarios. This connection method can improve product structural strength and simplify the assembly process, helping to reduce production errors. The mortise and tenon joint can be in the form of a pin, dovetail joint, etc.; it can also be modified into an embedded connection structure through injection molding to adapt to different process requirements.

[0031] In one possible implementation, a positioning post 6 is provided at the center of the lower end face of the upper cover 3, and a positioning hole 12 is provided on the upper end face of the base 8. The positioning post 6 and the positioning hole 12 cooperate to provide a precise positioning reference for the component, ensuring assembly alignment and improving electrical connection consistency. This structure effectively guarantees the stability and conductivity reliability of the component.

[0032] In one possible implementation, the lower end face of the lower cover is provided with an annular wall 7 concentric with the positioning post 6, and there is a gap between the annular wall 7 and the outer side of the positioning post 6. The side wall of the base 8 is inserted into the gap, making the mortise and tenon structure more stable.

[0033] In one possible implementation, a rubber ring is provided between the annular wall 7 and the side wall of the base 8. The rubber ring provides a good seal and cushioning, preventing liquid from entering the connection area and improving the waterproof rating. This enhances the structure's environmental adaptability and extends its service life. The rubber ring can be made of silicone rubber, fluororubber, etc., or can be replaced with a foam sealing strip or an O-ring.

[0034] In one possible implementation, the upper end face of the cover 3 is provided with a connecting post 5, and the bottom center of the connecting post 5 is provided with a threaded hole. The first connecting part 1 is installed on the connecting post 5 by bolts. The threaded connection method ensures mechanical fastness and is suitable for repeated disassembly and maintenance. It improves the structural stability and facilitates maintenance operations.

[0035] In one possible implementation, the outer middle section of the base 8 is provided with a protruding mounting housing 9, the front end face of the mounting housing 9 is provided with a guide hole, the guide hole communicates with the positioning hole 12 of the base 8, the second connecting part 2 is inserted into the positioning hole 12 from the side of the base 8 through the guide hole, the bottom center of the positioning post 6 is provided with a threaded hole, and the second connecting part 2 is installed on the positioning post 6 by bolts.

[0036] In one possible implementation, a protective cover 4 is provided on the outside of the base 8. The protective cover 4 is a shell structure without a cover, and the side of the protective cover 4 has a clearance notch for mounting the housing 9. The protective cover 4 forms a physical protective barrier, and the clearance notch ensures that the functional components are not disturbed, thereby enhancing the structure's resistance to external impacts and environmental adaptability.

[0037] In one possible implementation, the inner bottom surface of the protective cover 4 has a mounting hole 10, and the side wall of the base 8 is inserted into the mounting hole 10. A rubber ring is provided between the side wall of the base 8 and the inner wall of the mounting hole 10. The insertion method provides reliable fixation, and the rubber ring achieves both sealing and damping functions.

[0038] In one possible implementation, at least two slide rails 11 are provided on the inner wall of the protective cover 4, and a slider is provided on the lower end face of the upper cover 3. The surface of the slider is provided with a groove 13. The slide rails 11 and the slider slide in a sliding engagement to achieve guided installation, improving assembly efficiency and structural reliability. This structure facilitates rapid assembly and avoids misaligned assembly.

[0039] The slider is a cube structure concentric with the positioning post 6. All four outer walls of the slider are provided with grooves 13. Inside the protective cover 4, except for the face where the clearance notch is located, at least two opposite side walls are provided with slide rails 11. A circular through hole is provided at the center of the slider, and the inner wall of the through hole is an annular wall 7.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An immersion connector for a battery pack, comprising: The device includes a battery pack and a connector. The connector is mounted on the upper surface of the battery pack. The upper half of the connector has a first connection part for connecting to an external device and is located outside the battery pack. The lower half of the connector has a second connection part for connecting to the battery and is located inside the battery pack.

2. The submersion connector for a battery pack of claim 1, wherein, The connector includes a top cover and a base, which are connected by a mortise and tenon joint.

3. The submersion connector for a battery pack of claim 2, wherein, The upper cover has a positioning post at the center of its lower end face, and the base has a positioning hole at its upper end face.

4. The submersion connector for a battery pack of claim 3, wherein, The lower end face of the lower cover is provided with an annular wall concentric with the positioning post, and there is a gap between the annular wall and the outer side of the positioning post. The side wall of the base is inserted into the gap.

5. The submersion connector for a battery pack of claim 4, wherein, A rubber ring is provided between the annular wall and the side wall of the base.

6. The submersion connector for a battery pack of claim 2, wherein, The upper end face of the cover is provided with a connecting post, and the bottom center of the connecting post is provided with a threaded hole. The first connecting part is installed on the connecting post by bolts.

7. The submersible connector for a battery pack of any of claims 3-5, wherein, The outer middle section of the base has a protruding mounting shell. The front end face of the mounting shell has a guide hole that communicates with the positioning hole of the base. The second connecting part is inserted into the positioning hole from the side of the base through the guide hole. The bottom center of the positioning post has a threaded hole. The second connecting part is installed on the positioning post by bolts.

8. The submersion connector for a battery pack of claim 7, wherein, The base is provided with a protective cover, which is a shell structure without a cover, and the side of the protective cover has a clearance notch for mounting the shell.

9. The submersion connector for a battery pack of claim 8, wherein, The bottom of the protective cover has mounting holes, the side wall of the base is inserted into the mounting holes, and a rubber ring is provided between the side wall of the base and the inner wall of the mounting holes.

10. The submersion connector for a battery pack of claim 8, wherein, The inner wall of the protective cover is provided with at least two slide rails, and the lower end face of the top cover is provided with a slider, the surface of which is provided with a groove.

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