Low-temperature-resistant blister isolation plate for new energy battery

By designing a low-temperature resistant thermoformed separator, the safety hazards of traditional separators under impact, temperature changes, and vibration are solved, achieving stable fixation and protection of the battery and ensuring safe and reliable operation of the battery in low-temperature environments.

CN223941941UActive Publication Date: 2026-02-24GUANGDONG XINSHANGXING INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520211036.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-11
Publication Date
2026-02-24
Estimated Expiration
2035-02-11

AI Technical Summary

Technical Problem

Traditional new energy battery separators are unable to provide sufficient buffering protection under severe impact, temperature changes and long-term vibration, posing safety hazards.

Method used

It adopts a low-temperature resistant thermoformed isolation panel design, including a non-slip base, a storage tray, a limiting outer panel, and an inner panel synchronous assembly. Combined with an impact-resistant, low-temperature resistant layer and an auxiliary coating, it enhances the structural strength and toughness. The gear and rack mechanism achieves effective fixing and buffer protection of the battery.

Benefits of technology

It improves the safety and stability of the battery in low temperature and extreme environments, extends its service life, and ensures that the battery module continues to operate stably under harsh conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of battery isolation plates, and discloses a new energy battery low-temperature-resistant blister isolation plate which comprises an anti-skid base, a storage tray is fixedly connected to the middle of the inner wall of the anti-skid base, fixing plates are fixedly connected to the two sides of the inner wall of the anti-skid base, and a fixing frame is arranged at the top of the anti-skid base. An inserting plate is fixedly connected to one side of the exterior of the fixing frame, a limiting outer plate and a limiting inner plate are slidably connected to the interior of the fixing plate, and synchronous assemblies are arranged on the outer wall of the limiting outer plate and the outer wall of the limiting inner plate and used for driving the limiting outer plate and the limiting inner plate to move synchronously; the synchronous assembly comprises two L-shaped toothed plates, and one ends of the two L-shaped toothed plates are fixedly connected to the outer wall of the limiting outer plate and the outer wall of the limiting inner plate correspondingly. According to the utility model, the battery is ensured to be effectively limited and protected in the battery rack, the battery is prevented from being damaged due to external force in the use process, and the safety and the stability of the battery are further improved.
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Description

Technical Field

[0001] This utility model relates to the field of battery separator technology, and in particular to a low-temperature resistant thermoformed separator for new energy batteries. Background Technology

[0002] With the rapid development of new energy technologies, batteries, as core components of new energy systems, are receiving increasing attention for their safety, stability, and lifespan. Especially during battery storage, transportation, and use, ensuring battery stability and preventing damage due to external forces or environmental changes has become a crucial issue in battery design and protection technology. The securing and protection of batteries requires a reasonable design to cope with external impacts, vibrations, and temperature changes.

[0003] Traditional battery separators for new energy vehicles are typically used inside battery packs to isolate different battery cells, ensuring the safety and stability of the battery system. They primarily utilize highly insulating materials such as plastics, ceramics, or composite materials to prevent short circuits or overheating between batteries through electrical isolation. Furthermore, separators also provide physical support and protection for the batteries, reducing vibration and impact during operation and extending battery life. Key design factors for separators include high-temperature resistance, mechanical strength, and their proper placement and securing within the battery pack.

[0004] Traditional new energy battery separators often use simple fixing methods, such as bolts and clamps. As a result, they are prone to severe impacts, temperature changes, and long-term vibrations during use, and cannot provide sufficient buffer protection, leading to certain safety hazards for the batteries. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a low-temperature resistant thermoformed separator for new energy batteries, which aims to improve the problem that traditional separators for new energy batteries are unable to provide sufficient buffer protection, resulting in certain safety hazards for the batteries.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a low-temperature resistant thermoformed isolation plate for new energy batteries, comprising an anti-slip base, a storage tray fixedly connected to the middle of the inner wall of the anti-slip base, fixed plates fixedly connected to both sides of the inner wall of the anti-slip base, a fixed frame provided on the top of the anti-slip base, an insert plate fixedly connected to the outer side of the fixed frame, a limiting outer plate and a limiting inner plate slidably connected inside the fixed plate, and a synchronization component provided on the outer wall of both the limiting outer plate and the limiting inner plate, the synchronization component being used to drive the limiting outer plate and the limiting inner plate to move synchronously;

[0007] The synchronization component includes two L-shaped toothed plates, one end of which is fixedly connected to the outer wall of the limiting outer plate and the limiting inner plate, respectively. A gear is rotatably connected inside the fixed plate, and a rack is fixedly connected to the outer wall of the L-shaped toothed plate. The gear meshes with the rack. A reset component is provided on one side of the outer wall of the L-shaped toothed plate. The reset component is used to drive the limiting outer plate and the limiting inner plate to reset.

[0008] Furthermore, the reset assembly includes a slide rod, one end of which is fixedly connected to one side of the outer wall of the L-shaped toothed plate. A spring is sleeved on the outer wall of the slide rod, one end of which is fixedly connected to the outer wall of the L-shaped toothed plate, and the other end of which is fixedly connected to the inner wall of the fixing plate.

[0009] Furthermore, the storage tray has a reinforcing component inside to improve its strength. A heat dissipation pad is fixedly connected to the lower surface of the anti-slip base. An impact-resistant layer is provided on the lower inside of the storage tray. A low-temperature resistant layer is provided on the middle inside of the storage tray. An auxiliary coating is uniformly applied to the upper surface of the storage tray.

[0010] Furthermore, the reinforcing component includes reinforcing ribs, the outer walls of which are fixedly connected to the interior of the storage trays, and multiple partition grooves are formed between the multiple storage trays.

[0011] Furthermore, the outer wall of the slide rod is slidably connected to the inside of the fixed plate, and the slide rod is used to guide the extension and retraction of the spring.

[0012] Furthermore, the impact-resistant layer is made of polycarbonate to maintain the resilience of the tray.

[0013] Furthermore, the low-temperature resistant layer is made of polypropylene to provide the tray with better low-temperature resistance.

[0014] Furthermore, the auxiliary coating is made of epoxy resin, which helps to improve the overall durability of the tray.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, when the battery is inserted into the limiting hole formed by the insert plate, the limiting outer plate, and the limiting inner plate, the support of the battery allows the limiting inner plate to slide on the inner wall of the limiting outer plate, thereby driving the rack to slide in the fixed plate, driving the gear to rotate, which causes the L-shaped toothed plate to move and move in the opposite direction synchronously with the rack, ensuring that the battery is effectively limited and protected in the battery holder, preventing the battery from being damaged by external forces during use, and further improving the safety and stability of the battery.

[0017] 2. In this utility model, the low-temperature resistant layer of the separator plate ensures that it can maintain its strength and toughness in low-temperature environments, avoiding material embrittlement or performance degradation caused by sudden temperature drops. The impact-resistant layer effectively absorbs external impacts and vibrations. In addition, the reinforcing rib design inside the storage tray enhances the structural strength of the separator plate, ensuring that it maintains good shape and stability under external force or extreme low-temperature conditions. The auxiliary coating not only improves the wear resistance and corrosion resistance of the separator plate, but also extends its service life, ensuring that the battery module can operate continuously and stably in low-temperature and harsh environments. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a low-temperature resistant thermoformed separator for new energy batteries proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the structure above the anti-slip base of a low-temperature resistant thermoforming isolation plate for new energy batteries proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of one side of the limiting outer plate of a low-temperature resistant thermoforming isolation plate for new energy batteries proposed in this utility model.

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 This is a schematic diagram of the reinforcing rib structure of a low-temperature resistant thermoformed separator for new energy batteries proposed in this utility model;

[0023] Figure 6 This is a schematic diagram of the bottom structure of the anti-slip base of a low-temperature resistant thermoforming isolation plate for new energy batteries proposed in this utility model;

[0024] Figure 7 This is a schematic diagram of the internal structure of the storage tray of a low-temperature resistant thermoformed isolation plate for new energy batteries proposed in this utility model.

[0025] Legend:

[0026] 1. Anti-slip base; 2. Storage tray; 201. Impact-resistant layer; 202. Low-temperature resistant layer; 203. Auxiliary coating; 3. Fixing frame; 4. Insert plate; 5. Fixing plate; 6. Limiting outer plate; 7. L-shaped toothed plate; 8. Gear; 9. Rack; 10. Limiting inner plate; 11. Slide rod; 12. Spring 1; 13. Reinforcing rib; 14. Heat dissipation pad; 15. Dividing groove. Detailed Implementation

[0027] 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.

[0028] Reference Figure 1 - Figure 4 An embodiment of this utility model is provided: a low-temperature resistant thermoformed isolation plate for new energy batteries, including an anti-slip base 1, a storage tray 2 fixedly connected to the middle of the inner wall of the anti-slip base 1, a fixing plate 5 fixedly connected to both sides of the inner wall of the anti-slip base 1, a fixing frame 3 provided on the top of the anti-slip base 1, an insert plate 4 fixedly connected to the outer side of the fixing frame 3, a limiting outer plate 6 and a limiting inner plate 10 slidably connected inside the fixing plate 5, and a synchronization component provided on the outer wall of the limiting outer plate 6 and the limiting inner plate 10, the synchronization component being used to drive the limiting outer plate 6 and the limiting inner plate 10 to move synchronously;

[0029] The synchronization component includes two L-shaped toothed plates 7. One end of each L-shaped toothed plate 7 is fixedly connected to the outer wall of the limiting outer plate 6 and the limiting inner plate 10, respectively. A gear 8 is rotatably connected inside the fixing plate 5. A rack 9 is fixedly connected to the outer wall of the L-shaped toothed plate 7. The gear 8 and the rack 9 mesh with each other. A reset component is provided on one side of the outer wall of the L-shaped toothed plate 7. The reset component is used to drive the limiting outer plate 6 and the limiting inner plate 10 to reset. The reset component includes a slide rod 11. One end of the slide rod 11 is fixedly connected to one side of the outer wall of the L-shaped toothed plate 7. A spring 12 is sleeved on the outer wall of the slide rod 11. One end of the spring 12 is fixedly connected to the outer wall of the L-shaped toothed plate 7, and the other end of the spring 12 is fixedly connected to the inner wall of the fixing plate 5.

[0030] Specifically, the battery is first inserted into the limiting hole formed by the insert plate 4, the limiting outer plate 6, and the limiting inner plate 10. The supporting effect of the battery allows the limiting inner plate 10 to slide on the inner wall of the limiting outer plate 6, thereby pushing the rack 9 to slide smoothly in the fixing plate 5 and driving the gear 8 to rotate. The rotation of the gear 8 causes the L-shaped toothed plate 7 to move. At the same time, the L-shaped toothed plate 7 and the rack 9 move in opposite directions synchronously. The limiting outer plate 6 and the limiting inner plate 10 also move in opposite directions. At this time, the movement of the rack 9 and the L-shaped toothed plate 7 applies pressure to the spring 12, causing the spring to contract, thereby pushing the limiting outer plate 6 and the limiting inner plate 10 to clamp the battery, achieving effective fixation of the battery. The bottom tray 2 supports the battery, ensuring that the battery is stably placed in the battery rack, preventing the battery from shaking or shifting due to external force or vibration during use, playing a buffering and protective role, effectively absorbing external impacts and protecting the battery from damage.

[0031] Reference Figure 5 - Figure 7 The storage tray 2 has a reinforcing component inside to improve its strength. A heat dissipation pad 14 is fixedly connected to the lower surface of the anti-slip base 1. An impact-resistant layer 201 is provided on the lower side of the inside of the storage tray 2. A low-temperature resistant layer 202 is provided on the middle side of the inside of the storage tray 2. An auxiliary coating 203 is uniformly coated on the upper surface of the storage tray 2. The reinforcing component includes a reinforcing rib 13. The outer wall of the reinforcing rib 13 is fixedly connected to the inside of the storage tray 2. Multiple partition grooves 15 are formed between multiple storage trays 2. The outer wall of the slide rod 11 is slidably connected to the inside of the fixing plate 5. The slide rod 11 is used to guide the extension and retraction of the spring 12. The impact-resistant layer 201 is made of polycarbonate material to maintain the toughness of the storage tray 2. The low-temperature resistant layer 202 is made of polypropylene material to provide better low-temperature resistance for the storage tray 2. The auxiliary coating 203 is made of epoxy resin to help improve the overall durability of the storage tray 2.

[0032] Specifically, to enhance the overall stability and load-bearing capacity of the separator, reinforcing ribs 13 are arranged inside the storage tray 2. The reinforcing ribs 13 help improve the structural strength of the separator and prevent deformation or cracking under external forces. Especially when used for a long time or exposed to harsh environments, they can ensure that the separator always maintains its original strength and stability. The impact-resistant layer 201 is located on the lower inner side of the storage tray 2. By absorbing and mitigating external impact forces, it effectively prevents the battery from being damaged by collisions or vibrations, ensuring the safe operation of the battery. The low-temperature resistant layer 202 is located on the middle inner side of the storage tray 2. It provides continuous strength and toughness, ensuring that the separator can remain stable in low-temperature environments and preventing material brittleness or performance degradation due to low temperatures, thereby ensuring the long-term stability and reliability of the battery. Finally, the upper surface of the storage tray 2 is uniformly coated with an auxiliary coating 203, which not only improves the wear resistance of the separator but also enhances its corrosion resistance and extends its service life. The auxiliary coating 203 can also effectively reduce wear during long-term use, ensuring that the battery module can maintain stable and reliable operation even under extreme conditions.

[0033] Working principle: When the low-temperature resistant thermoforming isolation plate for new energy batteries is needed, the battery is first inserted into the limiting hole formed by the insert plate 4, the limiting outer plate 6, and the limiting inner plate 10. The support of the battery causes the limiting inner plate 10 to slide on the inner wall of the limiting outer plate 6, which in turn drives the rack 9 to slide in the fixed plate 5, causing the gear 8 to rotate, thereby causing the L-shaped toothed plate 7 to move and move in the opposite direction synchronously with the rack 9. The limiting outer plate 6 and the limiting inner plate 10 also move in the opposite direction. The movement of the rack 9 and the L-shaped toothed plate 7 applies pressure to the spring 12, causing it to contract, thereby pushing the limiting outer plate 6 and the limiting inner plate 10 to clamp the battery. The bottom tray 2 ensures that the battery is stably placed in the battery rack, thus providing buffer protection against external impacts.

[0034] Furthermore, the reinforcing ribs 13 arranged inside the storage tray 2 enhance the structural strength of the separator, preventing deformation or cracking under external forces and improving overall stability and load-bearing capacity. Secondly, the impact-resistant layer 201 is located on the lower inner side of the storage tray 2, effectively absorbing and mitigating external impacts to ensure that the battery is not damaged when subjected to collisions or vibrations, protecting the battery from external environmental interference. Next, the low-temperature resistant layer 202 is located on the middle inner side of the storage tray 2, providing continuous strength and toughness to ensure that the separator remains stable in low-temperature environments, preventing brittleness or performance degradation caused by low temperatures. Finally, the auxiliary coating 203 is uniformly coated on the upper surface of the storage tray 2, which not only enhances its surface wear resistance but also improves overall corrosion resistance and durability, reduces wear during long-term use, and ensures that the battery module can still maintain stable operation under extreme conditions.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. A low-temperature resistant thermoformed separator for new energy batteries, comprising an anti-slip base (1), characterized in that: A storage tray (2) is fixedly connected to the middle of the inner wall of the anti-slip base (1). Fixing plates (5) are fixedly connected to both sides of the inner wall of the anti-slip base (1). A fixing frame (3) is provided on the top of the anti-slip base (1). An insert plate (4) is fixedly connected to the outer side of the fixing frame (3). A limiting outer plate (6) and a limiting inner plate (10) are slidably connected inside the fixing plate (5). A synchronization component is provided on the outer wall of the limiting outer plate (6) and the limiting inner plate (10). The synchronization component is used to drive the limiting outer plate (6) and the limiting inner plate (10) to move synchronously. The synchronization component includes two L-shaped toothed plates (7), one end of which is fixedly connected to the outer wall of the limiting outer plate (6) and the limiting inner plate (10), respectively. A gear (8) is rotatably connected inside the fixing plate (5), and a rack (9) is fixedly connected to the outer wall of the L-shaped toothed plate (7). The gear (8) meshes with the rack (9). A reset component is provided on one side of the outer wall of the L-shaped toothed plate (7). The reset component is used to drive the limiting outer plate (6) and the limiting inner plate (10) to reset.

2. The low-temperature resistant thermoformed separator for new energy batteries according to claim 1, characterized in that: The reset assembly includes a slide rod (11), one end of which is fixedly connected to one side of the outer wall of the L-shaped toothed plate (7). A spring (12) is sleeved on the outer wall of the slide rod (11), one end of which is fixedly connected to the outer wall of the L-shaped toothed plate (7), and the other end of which is fixedly connected to the inner wall of the fixing plate (5).

3. The low-temperature resistant thermoformed separator for new energy batteries according to claim 1, characterized in that: The storage tray (2) is provided with a reinforcing component inside, which is used to improve the strength of the storage tray (2). A heat dissipation pad (14) is fixedly connected to the lower surface of the anti-slip base (1). An impact-resistant layer (201) is provided on the lower side of the inside of the storage tray (2). A low-temperature resistant layer (202) is provided on the middle side of the inside of the storage tray (2). An auxiliary coating (203) is uniformly coated on the upper surface of the storage tray (2).

4. The low-temperature resistant thermoformed separator for new energy batteries according to claim 3, characterized in that: The reinforcing component includes a reinforcing rib (13), the outer wall of which is fixedly connected to the interior of the storage tray (2), and multiple partition grooves (15) are formed between the multiple storage trays (2).

5. The low-temperature resistant thermoformed separator for new energy batteries according to claim 2, characterized in that: The outer wall of the slide rod (11) is slidably connected to the inside of the fixed plate (5), and the slide rod (11) is used to guide the extension and retraction of the spring (12).

6. The low-temperature resistant thermoformed separator for new energy batteries according to claim 3, characterized in that: The impact-resistant layer (201) is made of polycarbonate and is used to maintain the toughness of the tray (2).

7. A low-temperature resistant thermoformed separator for new energy batteries according to claim 3, characterized in that: The low-temperature resistant layer (202) is made of polypropylene and is used to provide the storage tray (2) with better low-temperature resistance.

8. The low-temperature resistant thermoformed separator for new energy batteries according to claim 3, characterized in that: The auxiliary coating (203) is made of epoxy resin, which helps to improve the overall durability of the tray (2).