A watertight battery compartment

CN224922844UActive Publication Date: 2026-10-30CHINA SHIPBUILDING MARINE EXPLORATION TECH RES INST CO LTD
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Patent Information

Application Number
CN202522571923.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-03
Publication Date
2026-10-30
Estimated Expiration
2035-12-03

AI Technical Summary

Technical Problem

现有的水密电池舱多采用舱体与舱盖通过螺钉紧固的连接方式,虽能保证一定的连接刚度和密封性能,但在拆装过程中必须借助专用工具,操作步骤繁琐,耗时长,无法实现电池的快速更换,尤其在野外或水下等特殊作业环境中极为不便

Benefits of technology

[0011]与现有技术相比,本实用新型提供了一种水密电池舱,具备以下有益效果:通过舱体与舱盖之间的螺纹连接设计,实现了无需工具即可手动旋合与分离的软连接方式,极大提升了电池拆装的便捷性与效率;利用设置在舱盖上的密封圈与舱体内壁面构成的径向压缩密封结构,确保了电池舱整体的水密性能,有效防止水分侵入;设置在舱体底部的弹簧,一方面将电池持续压紧于舱盖上,有效防止电池在舱内晃动,保障了电连接接触的稳定性,另一方面该压紧力转化为对螺纹连接的预紧力,起到了良好的螺纹防松作用,增强了连接可靠性;电流插头通过防水密封胶粘接固定,并具备导向与防呆功能,进一步保证了穿舱接口处的密封性与接插的准确快速。综上,本实用新型集密封、快速、防松、防晃功能于一体,显著提升了水密电池舱的实用性与操作体验。

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Abstract

The utility model relates to battery mounting structure technical field especially relates to a watertight battery cabin, including cabin body and hatch, the cabin body is equipped with the chamber for accommodating battery, the cabin body is connected through screw thread with hatch, be equipped with internal thread on the cabin body, be equipped with the external thread that cooperates with internal thread on the hatch, still be equipped with sealing ring groove on the hatch, install sealing ring in sealing ring groove, when the hatch is screwed on the cabin body, the sealing ring and the inner wall surface of cabin body form radial compression seal, the bottom of cabin body is provided with current plug and spring, the current plug is connected with battery electricity, the spring tightens battery in the inside of hatch, the utility model passes through the combination of screw thread connection and radial sealing structure, has realized the tool -free quick disassembly and reliable watertight function of battery, utilizes the spring tightness battery simultaneously, has the effect of anti -looseness and anti -shaking, has promoted the convenience and reliability of use.
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Description

Technical Field

[0001] This utility model relates to the field of battery mounting structure technology, and in particular to a watertight battery compartment. Background Technology

[0002] A watertight battery compartment is a key structural component used to house batteries, facilitate power transmission between batteries and external devices, and provide a waterproof seal. It is widely used in diving equipment, outdoor electronic instruments, and other applications. Existing watertight battery compartments mostly use a screw-fastened connection between the compartment body and cover. While this ensures a certain level of connection rigidity and sealing performance, disassembly and assembly require specialized tools, making the process cumbersome, time-consuming, and hindering rapid battery replacement, especially in special operating environments such as in the field or underwater. Therefore, there is an urgent need for a watertight battery compartment structure that can guarantee reliable sealing and connection while enabling rapid, tool-free battery disassembly and assembly. Utility Model Content

[0003] The purpose of this invention is to provide a watertight battery compartment to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a watertight battery compartment, comprising a compartment body and a cover, wherein the compartment body has a cavity for accommodating the battery; the compartment body and the cover are connected by threads, the compartment body has an internal thread, and the cover has an external thread that mates with the internal thread; the cover also has a sealing ring groove, in which a sealing ring is installed, and when the cover is tightened onto the compartment body, the sealing ring forms a radial compression seal with the inner wall of the compartment body; a current plug and a spring are provided at the bottom of the compartment body, the current plug is electrically connected to the battery, and the spring presses the battery tightly inside the cover.

[0005] Preferably, the hatch is also provided with a handle for easy manual operation.

[0006] Preferably, the current plug is fixed to the bottom of the cabin by waterproof sealant.

[0007] Preferably, the current plug has a guiding and foolproof function to guide the battery to be accurately aligned and plugged in.

[0008] Preferably, the spring is a pagoda-shaped compression spring.

[0009] Preferably, the bottom of the cabin is also provided with a spring seat, and the spring is housed in the spring seat.

[0010] Preferably, the chamber shape of the cabin is adapted to the shape of the battery.

[0011] Compared with existing technologies, this utility model provides a watertight battery compartment with the following advantages: The threaded connection design between the compartment body and the cover enables a tool-free, manual screw-on and screw-off connection, greatly improving the convenience and efficiency of battery installation and removal; the radial compression sealing structure formed by the sealing ring on the cover and the inner wall of the compartment ensures the overall watertightness of the battery compartment, effectively preventing moisture intrusion; the spring at the bottom of the compartment continuously presses the battery against the cover, effectively preventing the battery from shaking inside the compartment and ensuring the stability of the electrical connection; furthermore, this pressure is converted into a pre-tightening force on the threaded connection, providing excellent anti-loosening properties and enhancing connection reliability; the current plug is fixed by waterproof sealant and has guiding and foolproof functions, further ensuring the sealing at the interface and accurate and rapid connection. In summary, this utility model integrates sealing, speed, anti-loosening, and anti-shaking functions, significantly improving the practicality and user experience of the watertight battery compartment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the internal structure of this utility model; Figure 3 This is an exploded view of the present invention.

[0013] Explanation of reference numerals in the attached drawings: 1. Cabin; 11. Internal thread; 12. Current plug; 13. Spring; 14. Spring seat; 2. Cabin cover; 21. External thread; 22. Sealing ring groove; 23. Sealing ring; 24. Handle; 3. Battery. Detailed Implementation

[0014] The technical solutions of the present utility model will now be described with reference to the accompanying drawings in the embodiments of the present utility model: like Figure 1-3 As shown, this utility model provides a watertight battery compartment, including a compartment body 1 and a cover 2. The compartment body 1 serves as the core housing structure, and has a chamber for accommodating batteries 3. The shape of the chamber body 1 is adapted to the shape of the batteries 3. The compartment body 1 and the cover 2 are connected and separated by a threaded connection. Specifically, the compartment body 1 has an internal thread 11, and the cover 2 has an external thread 21 that mates with the internal thread 11. This threaded connection design constitutes the core structure for opening and closing the battery compartment, allowing the operator to easily open and close the battery compartment by manually rotating the cover 2 without the need for any special tools. This greatly improves the convenience of operation, making it particularly suitable for field or underwater work environments where tools are inconvenient to carry. For ease of manual operation, the cover 2 is also equipped with a handle 24, allowing the operator to easily screw the cover 2 in and out by rotating the handle 24.

[0015] To ensure the waterproof and sealing performance of the battery compartment, a sealing ring groove 22 is provided on the cover 2, and a sealing ring 23 is installed in the sealing ring groove 22. When the cover 2 is tightened to the compartment 1, the sealing ring 23 forms a radial compression seal with the inner wall of the compartment 1. The sealing ring 23 undergoes elastic deformation due to the radial compression of the inner wall of the compartment 1, filling the gap between the cover 2 and the inner wall of the compartment 1, forming an effective radial seal, thereby achieving the watertight function.

[0016] The bottom of the compartment 1 is equipped with a current plug 12 and a spring 13. The current plug 12 is fixed to the bottom of the compartment 1 with waterproof sealant, ensuring good sealing of the part of the current plug 12 that passes through the compartment and preventing moisture from seeping in along this path. The current plug 12 is used to make electrical connections with the corresponding socket on the battery 3 to complete the transmission of power to external devices. The current plug 12 has a guiding and foolproof function to guide the battery 3 to be accurately aligned and inserted, ensuring that the battery 3 can be quickly and accurately aligned and inserted when installed, avoiding damage to the connector due to misinsertion. The spring 13 is a pagoda-shaped compression spring, whose compression characteristics help to provide stable clamping force. To further position and accommodate the spring 13, the bottom of the compartment 1 is also provided with a spring seat 14, in which the spring 13 is housed. One end of the spring 13 abuts against the bottom of the spring seat 14, and the other end of the spring 13 directly presses against the bottom of the battery 3. Under the elastic force of the spring 13, the battery 3 is continuously pressed towards the compartment cover 2. Spring 13 presses battery 3 firmly inside the cover 2. This design has a dual function: firstly, it effectively limits the swaying of battery 3 in all directions within the compartment 1, ensuring the stability of the battery under vibration; secondly, the pressing force of battery 3 against the cover 2 acts in the opposite direction on the threaded connection, providing a continuous preload force for the threaded connection between the cover 2 and the compartment 1, effectively resisting loosening of the threads caused by vibration, and enhancing the overall connection reliability of the battery compartment.

[0017] The installation and removal procedure for battery 3 is as follows: Battery Installation: The operator holds battery 3 with its electrical ends facing the bottom of compartment 1 and inserts it into compartment 1, aligning it with the current plug 12. The bottom of battery 3 compresses spring 13. Then, the external thread 21 on the cover 2 is aligned with the internal thread 11 of compartment 1, and the cover 2 is rotated clockwise using handle 24. As the cover 2 is screwed in, the sealing ring 23 begins to contact the inner wall of compartment 1, creating a radial seal. When tightened to the predetermined position, battery 3 is pressed tightly against the inner side of cover 2 under the force of spring 13, the threaded connection reaches the predetermined preload, the sealing ring 23 reaches its optimal compression state, battery 3 is installed, and the electrical connection is established.

[0018] To remove the battery: Rotate handle 24 counterclockwise to unscrew the cover 2. As the cover 2 separates from the housing 1, the axial constraint on the battery 3 is released, and the restoring force of spring 13 will slightly push the battery 3 towards the cover 2 for easy removal. Continue to unscrew and remove the cover 2 to remove the battery 3 from the housing 1.

[0019] The above embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A watertight battery compartment, characterized in that: The device includes a housing (1) and a cover (2). The housing (1) has a chamber for accommodating a battery (3). The housing (1) and the cover (2) are connected by threads. The housing (1) has an internal thread (11), and the cover (2) has an external thread (21) that mates with the internal thread (11). The cover (2) also has a sealing ring groove (22), and a sealing ring (23) is installed in the sealing ring groove (22). When the cover (2) is tightened onto the housing (1), the sealing ring (23) forms a radial compression seal with the inner wall of the housing (1). The bottom of the housing (1) is provided with a current plug (12) and a spring (13). The current plug (12) is electrically connected to the battery (3), and the spring (13) presses the battery (3) tightly inside the cover (2).

2. The watertight battery compartment according to claim 1, characterized in that: The hatch (2) is also equipped with a handle (24) for easy manual operation.

3. The watertight battery compartment according to claim 1, characterized in that: The current plug (12) is fixed to the bottom of the cabin (1) by waterproof sealant.

4. The watertight battery compartment according to claim 3, characterized in that: The current plug (12) has a guiding and foolproof function to guide the battery (3) to be accurately aligned and plugged in.

5. The watertight battery compartment according to claim 1, characterized in that: The spring (13) is a pagoda-shaped compression spring.

6. The watertight battery compartment according to claim 1, characterized in that: The bottom of the cabin (1) is also provided with a spring seat (14), and the spring (13) is housed in the spring seat (14).

7. The watertight battery compartment according to claim 1, characterized in that: The chamber shape of the cabin (1) is adapted to the shape of the battery (3).