Separator for combined battery pack

By designing a modular battery pack separator, utilizing a clamping mechanism with springs and movable rods, as well as a locking mechanism with positioning rods, the problem of poor fixation caused by inconsistent battery specifications was solved. This achieved stable clamping and flexible separation of the batteries, improving the overall stability of the battery pack.

CN224096880UActive Publication Date: 2026-04-07HENAN YUEXIN INTELLIGENT MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

In the prior art, inconsistent battery specifications make it impossible to flexibly adjust the separator, resulting in poor fixation of the battery within the separator and affecting the flexibility and applicability of the separator.

Method used

A modular battery pack separator was designed, comprising a frame, a clamping mechanism, and a locking mechanism. The battery is clamped and fixed using a first spring and a movable rod, and the upper frame is accurately positioned and stably connected through the cooperation of a positioning rod and a positioning hole.

Benefits of technology

It achieves stable clamping and fixation of batteries of different specifications, improves the flexibility and applicability of separation, and ensures the independence and stability of batteries during charging and discharging.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of batteries, in particular to a separator for a combined battery pack, which comprises a frame body, the frame body comprises a lower frame, the top end of the lower frame is provided with an upper frame, and the inner sides of the lower frame and the upper frame are respectively provided with a separation groove; a clamping mechanism is arranged on the inner side of the lower frame and comprises a movable groove. Through the arrangement of the first spring, the movable rod can move on the inner side of the movable groove, and meanwhile, the first spring can apply a certain force to the connecting block, so that after a battery is inserted into the separation groove, the movable rod can drive the arc-shaped plate to move under the action of the first spring, and the arc-shaped plate abuts against the battery tightly; according to the battery clamping and fixing device, the batteries can be clamped and fixed, so that the stability of the batteries in the separation grooves can be guaranteed, the spaces of the separation grooves can adapt to the batteries of different specifications to be adjusted, and the batteries can be separated more flexibly.
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Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a separator for a combined battery pack. Background Technology

[0002] A battery pack is a device that combines multiple batteries together in series or parallel. In series connection, the total voltage of the battery pack equals the sum of the voltages of each individual battery, while the capacity remains constant. In parallel connection, the total capacity of the battery pack equals the sum of the capacities of each individual battery, while the voltage remains constant. A modular battery pack is composed of multiple independent battery modules connected in a specific way. Each battery module typically contains multiple battery cells and is pre-packaged, possessing a specific structure and function. To effectively isolate battery modules and prevent contact between the metal parts of adjacent modules, spacers are usually used. Spacers in modular battery packs typically refer to components used during battery pack assembly to isolate, fix, and protect individual battery cells or modules. These spacers may include plastic frames, cold plates, cooling pipes, pressure plates, and fasteners. Spacers separate the individual batteries in the battery pack, effectively preventing short circuits caused by poor contact or external factors, thus ensuring the normal operation of the battery pack. Simultaneously, they ensure that each battery in the pack remains relatively independent during charging and discharging, avoiding performance degradation due to differences in battery parameters, thereby improving the overall stability of the battery pack.

[0003] In the prior art, when separating battery packs using spacers, the batteries are usually directly inserted into the separating slots. However, due to the different battery specifications, the space in the separating slots cannot be adjusted well according to the battery specifications. This results in the batteries not being well fixed in the separating slots when separating batteries of different sizes, which is not conducive to improving the flexibility and applicability of the separation. Therefore, in order to solve the above problems, a combined battery pack spacer is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a modular battery pack separator to solve the problem mentioned in the background art that, due to the different battery specifications, the space in the separator groove cannot be adjusted well according to the battery specifications, so that when separating batteries of different sizes, the batteries cannot be well fixed in the separator groove, which is not conducive to improving the flexibility and applicability of the separator.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a separator for a combined battery pack, comprising a frame, the frame comprising a lower frame, an upper frame being provided at the top of the lower frame, and a partition groove being provided on the inner side of both the lower frame and the upper frame.

[0006] A clamping mechanism is provided on the inner side of the lower frame. The clamping mechanism includes a movable groove, which is opened on the inner side of the lower frame and the upper frame. A first spring is fixedly connected to the inner wall of the movable groove. A connecting block is fixedly connected to the surface of the first spring. A movable rod is fixedly connected to the surface of the connecting block. An arc-shaped plate is fixedly connected to the surface of the movable rod. A rubber pad is fixedly connected to the surface of the arc-shaped plate.

[0007] Preferably, one end of the first spring is fixedly connected to the movable groove, and the other end of the first spring is fixedly connected to the connecting block.

[0008] Preferably, the movable rod is fixedly connected to the end of the connecting block away from the first spring, the arc-shaped plate is fixedly connected to the end of the movable rod away from the connecting block, and both the connecting block and the movable rod are movable inside the movable groove.

[0009] Preferably, the surface of the lower frame is provided with a locking mechanism, the locking mechanism including a positioning rod, the positioning rod being fixedly connected to the upper surface of the lower frame, a positioning hole being opened on the inner side of the upper frame, an insert rod being movably connected to the inner side of the upper frame, a pull block being fixedly connected to the surface of the insert rod, a slot being opened on the surface of the positioning rod, and a second spring being fixedly connected to the surface of the pull block.

[0010] Preferably, the positioning rods are fixedly connected to the lower frame in four groups, the positioning holes are opened in four groups on the inner side of the upper frame, and the insertion rods are movable in four groups on the inner side of the upper frame.

[0011] Preferably, the slots are evenly distributed on the surface of the positioning rod, one end of the second spring is fixedly connected to the upper frame, and the other end of the second spring is fixedly connected to the pull block.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The first spring allows the movable rod to move inside the movable slot. At the same time, the first spring can apply a certain force to the connecting block, so that after the battery is inserted into the separator slot, the movable rod can drive the arc plate to move under the action of the first spring, and the arc plate can press against the battery, thus clamping and fixing the battery. This ensures the stability of the battery in the separator slot, and allows the space of the separator slot to be adjusted to accommodate batteries of different specifications, making the separation of batteries more flexible.

[0014] 2. The positioning rod and positioning hole allow for precise positioning of the upper frame when connecting it to the battery. This facilitates better insertion of the battery into the upper frame's divider slot and ensures stability and accuracy between the upper and lower frames. Furthermore, the insertion and separation via the movable rod and slot allow the upper frame to be fixed in the appropriate position according to the battery's dimensions and height, ensuring a stable connection between the upper and lower frames and further enhancing battery separation. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a front view of the exploded structure of this utility model;

[0017] Figure 3 This is an exploded cross-sectional view of the structure of the insertion rod and the second spring of this utility model.

[0018] Figure 4 This is a partial front sectional view of the movable rod and arc plate of this utility model;

[0019] Figure 5 This utility model Figure 4 A magnified structural diagram of point A in the middle.

[0020] In the diagram: 1. Lower frame; 11. Upper frame; 12. Divider groove; 2. Movable groove; 21. First spring; 22. Connecting block; 23. Movable rod; 24. Arc plate; 25. Rubber pad; 3. Positioning rod; 31. Positioning hole; 32. Insert rod; 33. Pull block; 34. Slot; 35. Second spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 One embodiment provided by this utility model:

[0023] A separator for a modular battery pack includes a frame, which includes a lower frame 1 and an upper frame 11 at the top of the lower frame 1. Both the lower frame 1 and the upper frame 11 have a separator groove 12 on their inner sides. The separator groove 12 can be used to separate the batteries.

[0024] A clamping mechanism is provided on the inner side of the lower frame 1. The clamping mechanism includes a movable groove 2, which is opened on the inner side of the lower frame 1 and the upper frame 11. A first spring 21 is fixedly connected to the inner wall of the movable groove 2. A connecting block 22 is fixedly connected to the surface of the first spring 21. A movable rod 23 is fixedly connected to the surface of the connecting block 22. An arc plate 24 is fixedly connected to the surface of the movable rod 23. A rubber pad 25 is fixedly connected to the surface of the arc plate 24. The setting of the rubber pad 25 can protect the battery and prevent the arc plate 24 from causing wear on the battery surface.

[0025] Furthermore, one end of the first spring 21 is fixedly connected to the movable groove 2, and the other end of the first spring 21 is fixedly connected to the connecting block 22. Through the elastic properties of the first spring 21, a certain force can be applied to the connecting block 22, so that after the battery enters into the separating groove 12, the arc plate 24 can clamp the batteries of different sizes, which can ensure the stability of the battery and thus better separate the batteries.

[0026] Furthermore, the movable rod 23 is fixedly connected to the end of the connecting block 22 away from the first spring 21, and the arc plate 24 is fixedly connected to the end of the movable rod 23 away from the connecting block 22. Both the connecting block 22 and the movable rod 23 are movable inside the movable groove 2. By setting the arc plate 24, the battery in the partition groove 12 can be limited, so that the battery can be more stable in the partition groove 12.

[0027] Furthermore, a locking mechanism is provided on the surface of the lower frame 1. The locking mechanism includes a positioning rod 3, which is fixedly connected to the upper surface of the lower frame 1. A positioning hole 31 is provided on the inner side of the upper frame 11. An insertion rod 32 is movably connected to the inner side of the upper frame 11. A pull block 33 is fixedly connected to the surface of the insertion rod 32. A slot 34 is provided on the surface of the positioning rod 3. A second spring 35 is fixedly connected to the surface of the pull block 33. By movably cooperating with the elastic properties of the second spring 35, the insertion rod 32 and different slots 34 can be easily inserted and separated. Thus, when separating the battery, it is easier to connect the upper frame 11 and the battery according to the size of the battery. At the same time, it can also connect the lower frame 1 and the upper frame 11, thereby achieving a better separation effect for the battery.

[0028] Furthermore, the positioning rods 3 are fixedly connected to the lower frame 1 in four groups, the positioning holes 31 are opened in four groups on the inner side of the upper frame 11, and the insertion rods 32 are movable in four groups on the inner side of the upper frame 11. Through the cooperation of the positioning rods 3 and the positioning holes 31, the upper frame 11 can be positioned when the upper frame 11 and the battery are installed, which can ensure accuracy and facilitate the battery to enter the partition groove 12 of the upper frame 11 better.

[0029] Furthermore, slots 34 are evenly distributed on the surface of positioning rod 3. One end of the second spring 35 is fixedly connected to the upper frame 11, and the other end of the second spring 35 is fixedly connected to the pull block 33. The second spring 35 can be used to reset the pull block 33, thereby enabling the insertion of the rod 32 and the slot 34, which facilitates the connection between the upper frame 11 and the positioning rod 3.

[0030] Working principle: When in use, the battery is placed in the separator 12. The arc plate 24 is squeezed by the battery, causing the movable rod 23 and the connecting block 22 to move into the movable groove 2. At this time, the first spring 21 deforms. Through the elastic property of the first spring 21, a certain force can be applied to the connecting block 22. Then the movable rod 23 drives the arc plate 24 to move, so that the arc plate 24 clamps the battery and fixes the battery. The rubber pad 25 contacts the battery surface to provide protection.

[0031] Pulling out the pull block 33 allows the insertion rod 32 to move within the upper frame 11. At this time, the second spring 35 is in a stretched state. Then, the positioning rod 3 and the positioning hole 31 are aligned and inserted, allowing the upper frame 11 to move on the positioning rod 3. After the battery enters the partition groove 12 on the upper frame 11, by releasing the pull block 33, the pull block 33 can be reset under the rebound action of the second spring 35. Then, the insertion rod 32 is reset and inserted into the corresponding slot 34, thereby locking the upper frame 11 and the positioning rod 3, making it difficult for the lower frame 1 and the upper frame 11 to separate.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the description above. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A separator for a combined battery pack, comprising a frame, the frame comprising a lower frame (1), an upper frame (11) being provided at the top of the lower frame (1), and a partition groove (12) being provided on the inner side of both the lower frame (1) and the upper frame (11). Its features are, A clamping mechanism is provided on the inner side of the lower frame (1). The clamping mechanism includes a movable groove (2). The movable groove (2) is opened on the inner side of the lower frame (1) and the upper frame (11). A first spring (21) is fixedly connected to the inner wall of the movable groove (2). A connecting block (22) is fixedly connected to the surface of the first spring (21). A movable rod (23) is fixedly connected to the surface of the connecting block (22). An arc plate (24) is fixedly connected to the surface of the movable rod (23). A rubber pad (25) is fixedly connected to the surface of the arc plate (24).

2. The separator for a combined battery pack according to claim 1, characterized in that: One end of the first spring (21) is fixedly connected to the movable groove (2), and the other end of the first spring (21) is fixedly connected to the connecting block (22).

3. A separator for a combined battery pack according to claim 1, characterized in that: The movable rod (23) is fixedly connected to the end of the connecting block (22) away from the first spring (21), and the arc plate (24) is fixedly connected to the end of the movable rod (23) away from the connecting block (22). Both the connecting block (22) and the movable rod (23) are movable inside the movable groove (2).

4. A separator for a combined battery pack according to claim 1, characterized in that: The lower frame (1) is provided with a locking mechanism, which includes a positioning rod (3). The positioning rod (3) is fixedly connected to the upper surface of the lower frame (1). The upper frame (11) has a positioning hole (31) on its inner side. The upper frame (11) is movably connected with a plug rod (32). The plug rod (32) is fixedly connected with a pull block (33). The positioning rod (3) has a slot (34) on its surface. The pull block (33) is fixedly connected with a second spring (35).

5. A separator for a combined battery pack according to claim 4, characterized in that: The positioning rods (3) are fixedly connected to the lower frame (1) in four groups, the positioning holes (31) are opened in four groups on the inner side of the upper frame (11), and the insertion rods (32) are movable in four groups on the inner side of the upper frame (11).

6. A separator for a combined battery pack according to claim 4, characterized in that: The slots (34) are evenly distributed on the surface of the positioning rod (3), one end of the second spring (35) is fixedly connected to the upper frame (11), and the other end of the second spring (35) is fixedly connected to the pull block (33).