Oil-immersed battery energy storage connector with pre-locking function
By introducing a pre-locking structure and limiting groove into the oil-immersed battery connector, combined with locking components and sealing sleeves, the problem of unstable connection between the socket and the terminal is solved, enabling fast and safe power delivery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 金锚电力控股有限公司
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-10
AI Technical Summary
Existing oil-immersed battery connectors are cumbersome to operate when connecting the socket and terminals, are prone to misalignment, resulting in unstable connections and affecting the safety and efficiency of power delivery.
An oil-immersed battery energy storage connector with pre-locking function was designed. By setting a pre-locking structure and limiting groove on the socket, combined with locking components and extrusion end, the plug and socket can be quickly and accurately connected, and sealed by a sealing sleeve.
It enables a quick and stable connection between the plug and the socket, reduces the number of operation steps, improves the accuracy and safety of the connection, and ensures the reliability of power delivery.
Smart Images

Figure CN224481306U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a battery connector, and more particularly to an oil-immersed battery energy storage connector with a pre-locking function. Background Technology
[0002] Oil-immersed batteries are battery systems that utilize oil-immersion cooling technology, primarily used to improve the battery's thermal management performance. By immersing the battery pack in a specific cooling oil, the thermal conductivity of the oil effectively dissipates the heat generated by the battery. During charging and discharging, the battery uses a connector as the power receiving end. The connector consists of two parts: terminals and a socket. When using the connector, the terminals are plugged into the socket to connect the battery to the power supply equipment and transmit current.
[0003] Currently, when connecting the battery connector socket to the external connector terminal, a locking structure, such as bolt locking, is used between the two connectors to achieve a stable connection. The connector is pre-connected by passing the socket and terminal through them, and then the bolt is tightened with a screwdriver to secure the connector. However, this type of connector requires matching the terminal and socket models during actual installation, making the operation cumbersome. Misalignment can easily occur when connecting the socket and terminal, hindering subsequent locking. Therefore, it is necessary to design an oil-immersed battery energy storage connector with a pre-locking structure that allows for quick and stable power connection. Utility Model Content
[0004] In view of the above-mentioned problems in the existing technology, the purpose of this utility model is to provide an oil-immersed battery energy storage connector with a pre-locking function, so as to realize the purpose of the battery energy storage connector having a pre-locking structure and being able to quickly and stably connect the power supply.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] An oil-immersed battery energy storage connector with a pre-locking function includes a socket disposed on the battery body and a plug used in conjunction with the socket. The plug and the socket have terminals at their through ends. The connector is characterized in that: a pre-locking structure is provided through both sides of the socket; an adjustment part is provided on the side of the plug near the terminal; a locking component is sleeved on the outside of the adjustment part; a pressing end is provided on the side of the locking component near the terminal; and a limiting groove is provided between the adjustment part and the terminal for the pre-locking structure to pass through, for pre-connection of the socket and the plug, and for quick and stable locking.
[0007] Preferably, the end of the terminal is provided with a chamfered portion, and the terminal passes through the chamfered portion between the two pre-locking structures.
[0008] Preferably, the pre-locking structure includes a connecting piece rotatably mounted on the socket, with a through end at one end of the connecting piece near the socket and an adjusting block at the other end of the connecting piece for pre-locking switching between the pre-locking structure and the plug.
[0009] Preferably, the connecting piece is inclinedly disposed on the socket, and the same connecting spring is provided between the connecting piece and the socket, and the thickness of the through end is less than the height of the limiting groove.
[0010] Preferably, the outer side of the adjusting part is provided with threads, and the inner side of the locking component is provided with a threaded groove that engages with the threads for locking the socket and plug.
[0011] Preferably, the extrusion end includes a plurality of spring posts fixed on the locking assembly, the ends of the spring posts are provided with the same extrusion block, the extrusion block and the locking assembly are provided with the same sleeve, and the extrusion block, the sleeve and the limiting groove pass through each other.
[0012] Preferably, the limiting groove has a transition portion at one end of the terminal, and the diameter of the transition portion is the same as the diameter of the locking assembly.
[0013] Preferably, the plug is fitted with a sealing sleeve, which is fitted over the outside of the socket, and the end of the sealing sleeve near the socket has a wide opening structure.
[0014] Compared with existing technologies, the oil-immersed battery energy storage connector provided by this utility model facilitates the pre-locking of similar plugs and sockets, making the connector easier to install and use. It can be connected accurately and stably, ensuring safe power delivery. Specifically, by using a pre-locking structure and a limiting groove on the socket, when connecting the plug terminals to the socket, the plug is first inserted between the through ends of the two pre-locking structures. Through the use of connecting springs and connecting plates, the plug can be clamped, and the through ends are limited in the limiting groove, realizing the pre-connection of the socket and plug. This facilitates the alignment of the plug and socket, prevents the plug from tilting, increases the connection accuracy of the plug and socket, and provides convenience for the installation and use of the connector.
[0015] Furthermore, by using the adjustment part and locking component on the plug together, the locking component can be used to pre-lock the structure by turning the thread on the adjustment part. The spring column and the compression block are used to tighten the through end that is inserted into the limiting groove in another direction, thereby locking the plug and socket together and completing the installation and use of the connector. Afterwards, by using the sealing sleeve on the plug and the socket to fit together, the pre-locking structure and the through groove of the socket can be sealed, which separates the power supply between the battery status and the power supply equipment, increases the safety of the connector and is very beneficial to the stable use of the connector.
[0016] It should be understood that the general descriptions and details herein are exemplary and illustrative only and are not intended to limit this disclosure.
[0017] This application provides an overview of various implementations or exemplary embodiments of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of the oil-immersed battery energy storage connector of this utility model.
[0019] Figure 2 This is an exploded view of the socket and plug in the oil-immersed battery energy storage connector of this utility model.
[0020] Figure 3 This is a schematic diagram of the connection structure between the plug and the pre-locking structure in the oil-immersed battery energy storage connector of this utility model;
[0021] Figure 4 This is a partial structural cross-sectional view of the socket in the oil-immersed battery energy storage connector of this utility model.
[0022] Figure 5 This is an exploded view of the structure of the terminals and adjustment part in the oil-immersed battery energy storage connector of this utility model.
[0023] Figure 6 This is a schematic diagram of the extrusion end and locking assembly in the oil-immersed battery energy storage connector of this utility model.
[0024] Key reference numerals:
[0025] 1. Battery body; 11. Socket; 12. Plug; 121. Terminal; 2. Pre-locking structure; 21. Connecting piece; 22. Adjusting block; 23. Through end; 24. Connecting spring; 3. Adjusting part; 31. Thread; 4. Locking assembly; 41. Pressing end; 411. Spring post; 412. Pressing block; 413. Cover; 414. Thread groove; 5. Limiting groove; 51. Transition part; 6. Sealing sleeve. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the embodiments of this disclosure will be described in more detail below with reference to the accompanying drawings. Note: The described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.
[0027] As attached Figure 1 To be continued Figure 6As shown, the oil-immersed battery energy storage connector provided in this embodiment of the present invention utilizes the cooperation of a pre-locking structure 2 and a limiting groove 5 to pre-connect the socket 11 and the plug 12, reducing the matching steps of the socket 11 and plug 12 models, and enabling a quick and stable power connection. Currently, the connector includes a socket 11 mounted on the battery body 1 and a plug 12 that mates with the socket 11. A power cord is connected to the outside of the plug 12 for easy connection to power supply equipment, enabling the transmission of external power to the battery. Furthermore, the through end 23 of the plug 12 and socket 11 can be configured as a terminal 121. To facilitate the pre-connection of the socket 11 and plug 12, a pre-locking structure 2 can be provided through both sides of the socket 11. The pre-locking structure 2 is rotatably mounted on the socket 11, and can be opened or closed by pressing it by an external person. Next, an adjustment part 3 is provided on the side of the plug 12 near the terminal 121, and a locking component 4 is fitted over the adjustment part 3. The locking component 4 is located near the terminal 121. A pressing end 41 is provided on one side, and a limiting groove 5 is provided between the adjusting part 3 and the terminal 121 for the pre-locking structure 2 to pass through. When the terminal 121 passes through the socket 11, after the terminal 121 passes into the socket 11, the pre-locking structure 2 will be locked into the limiting groove 5, limiting the plug 12 on the socket 11. Then, through the cooperation of the locking component 4 and the adjusting part 3, the pre-locking structure 2 can be locked, and the position of the pre-locking structure 2 can be limited and fixed, providing favorable conditions for the tight connection between the socket 11 and the plug 12, reducing the use of bolts and screwdrivers, facilitating the pre-connection of the socket 11 and the plug 12, and ensuring the parallel insertion of the terminal 121 and the socket 11, avoiding the offset of the plug 12, increasing the accuracy of the connector connection, and realizing the fast and stable locking of the connector.
[0028] It is worth noting that, in order to facilitate the connection between terminal 121 and socket 11, such as Figure 3 As shown, a chamfered portion can be provided at the end of the terminal 121. The diameter of the chamfered portion decreases from the inside to the outside and is set into a trapezoidal structure. This facilitates the connection between the terminal 121 and the socket 11 when the terminal 121 is installed. The chamfered portion passes through the two pre-locking structures 2 and is inserted into the socket 11, providing favorable conditions for the connection between the terminal 121 and the plug 12.
[0029] In some embodiments, to facilitate the pre-connection of the pre-locking structure 2 and the plug 12, such as Figure 4As shown, the pre-locking structure 2 can use a connecting piece 21 rotatably mounted on the socket 11 as a connecting structure. First, a through end 23 is set at one end of the connecting piece 21 near the socket 11. The through end 23 can be made of rubber material. Then, an adjusting block 22 is set at the other end of the connecting piece 21. The adjusting block 22 passes through the socket 11 and extends to the outside of the socket 11. The initial state of the plug 12 is that the through end 23 is inclined inside the socket 11. When the terminal 121 is inserted into the socket 11, it will open the two through ends 23. Through the sliding of the terminal 121 into the socket 11, the through ends 23 will slide into the limiting groove 5, pre-connecting the socket 11 and the plug 12. Then, by pressing the adjusting block 22, the locking structure is rotated at an angle, opening the two through ends 23 and increasing the distance between the two structures. Then, by pulling the plug 12 outward, the through ends 23 can be disengaged from the limiting groove 5, realizing the pre-locking switch of the pre-locking structure 2 and the plug 12.
[0030] It is worth noting that the connecting piece 21 is tilted on the socket 11, and the same connecting spring 24 is provided between the connecting piece 21 and the socket 11. The use of the connecting spring 24 allows the pre-locking structure 2 to adjust its angle using the elastic characteristics of the spring, clamping the through end 23 to the plug 12, thus achieving a pre-connection between the plug 12 and the socket 11. Furthermore, as... Figure 3 As shown, in order to facilitate the penetration and limiting connection between the through end 23 and the limiting groove 5, the thickness of the through end 23 is set to be less than the height of the limiting groove 5. When the through end 23 penetrates the limiting groove 5, the plug 12 can use the pressing end 41 to tighten the through end 23 in another direction, fix the position of the plug 12, reduce the application of bolts between the socket 11 and the plug 12, reduce the installation steps of the connector, and facilitate the precise connection of the plug 12 using the limiting groove 5.
[0031] In some embodiments, to facilitate the adjustable connection between the adjusting part 3 and the locking assembly 4, such as... Figure 5 As shown, a thread 31 can be provided on the outside of the adjusting part 3, and a screw groove 414 that cooperates with the thread 31 can be provided on the inside of the locking assembly 4. Through the cooperation of the thread 31 and the screw groove 414, the locking assembly 4 can easily adjust the distance between the pressing end 41 and the limiting groove 5 using the thread 31, and can tighten or loosen the pre-locking structure 2 to achieve the locking treatment of the socket 11 and the plug 12.
[0032] It is worth noting that, for example Figure 5As shown, the pressing end 41 includes a plurality of spring posts 411 fixed on the locking assembly 4. The ends of the spring posts 411 are provided with the same pressing block 412. Then, the same sleeve 413 is provided between the pressing block 412 and the locking assembly 4, and the pressing block 412 and the sleeve 413 pass through each other. The pressing block 412 slides on the sleeve 413 using the spring posts 411, and the pressing block 412 passes through the limiting groove 5, which provides convenience for the use of the pre-locking structure 2 and the plug 12.
[0033] like Figure 6 As shown, a transition portion 51 can be provided at one end of the limiting groove 5 located at the terminal 121. The diameter of the transition portion 51 is set to the same size as the diameter of the locking assembly 4, so that the terminal 121 can use the transition portion 51 to limit the pre-locking structure 2 and limit the through end 23 in the limiting groove 5, providing favorable conditions for the locking of the socket 11 and the plug 12.
[0034] In some embodiments, to better achieve the connection between the plug 12 and the socket 11 in the connector, such as Figure 1 and 2 As shown, a sealing sleeve 6 can be fitted over the outside of the plug 12, and the end of the sealing sleeve 6 near the socket 11 has a wide opening structure. Through the operation of the external user, the sealing sleeve 6 can be fitted over the outside of the socket 11 to seal the connection end between the socket 11 and the plug 12, and to cover the through end 23 of the pre-locking structure 2 and the socket 11, so as to achieve a sealed connection of the connector, increase the connection stability between the connectors, and improve the performance of the connector.
[0035] Of course, the above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.
Claims
1. An oil-immersed battery energy storage connector with a pre-locking function, comprising a socket (11) disposed on a battery body (1) and a plug (12) used in conjunction with the socket (11), wherein the plug (12) and the through end (23) of the socket (11) are provided with terminals (121), characterized in that: The socket (11) has a pre-locking structure (2) through both sides. The plug (12) has an adjustment part (3) on the side near the terminal (121). The adjustment part (3) is fitted with a locking component (4). The locking component (4) has a pressing end (41) on the side near the terminal (121). A limiting groove (5) is provided between the adjustment part (3) and the terminal (121) for the pre-locking structure (2) to pass through, for the pre-connection of the socket (11) and the plug (12) and for quick and stable locking.
2. The oil-immersed battery energy storage connector as described in claim 1, characterized in that, The end of the terminal (121) is provided with a chamfered portion, and the terminal (121) passes through the two pre-locking structures (2) through the chamfered portion.
3. The oil-immersed battery energy storage connector as described in claim 1, characterized in that, The pre-locking structure (2) includes a connecting piece (21) rotatably mounted on the socket (11). One end of the connecting piece (21) near the socket (11) is provided with a through end (23), and the other end of the connecting piece (21) is provided with an adjusting block (22) for pre-locking switch between the pre-locking structure (2) and the plug (12).
4. The oil-immersed battery energy storage connector as described in claim 3, characterized in that, The connecting piece (21) is inclinedly disposed on the socket (11), and the same connecting spring (24) is provided between the connecting piece (21) and the socket (11). The thickness of the through end (23) is less than the height of the limiting groove (5).
5. The oil-immersed battery energy storage connector as described in claim 1, characterized in that, The adjustment part (3) has a thread (31) on its outer side, and the locking assembly (4) has a thread groove (414) on its inner side that works with the thread (31) for locking the socket (11) and the plug (12).
6. The oil-immersed battery energy storage connector as described in claim 1, characterized in that, The extrusion end (41) includes a plurality of spring posts (411) fixed on the locking assembly (4). The ends of the spring posts (411) are provided with the same extrusion block (412). The extrusion block (412) and the locking assembly (4) are provided with the same sleeve (413), and the extrusion block (412) passes through the sleeve (413) and the limiting groove (5).
7. The oil-immersed battery energy storage connector as described in claim 6, characterized in that, The limiting groove (5) is provided with a transition part (51) at one end of the terminal (121), and the diameter of the transition part (51) is the same as the diameter of the locking assembly (4).
8. The oil-immersed battery energy storage connector as described in claim 1, characterized in that, The plug (12) is covered with a sealing sleeve (6), which is fitted over the socket (11), and the end of the sealing sleeve (6) near the socket (11) has a wide opening structure.