Thermosensitive lock catch push rod structure and energy storage system

Abstract

The utility model provides a thermo-sensitive lock catch push rod structure and an energy storage system, the thermo-sensitive lock catch push rod structure comprises a fixed part, a rod body and a thermo-sensitive lock catch are movably arranged on the fixed part, the rod body is abutted against the fixed part through an elastic piece, one end of the thermo-sensitive lock catch passes through the fixed part and is inserted into the rod body, so that the rod body extrudes the elastic piece and is fixed on the fixed part; the rod body can be used for being inserted into a fixing lug plate of the battery pack and / or the high-voltage box to fix the battery pack and / or the high-voltage box, so that when the battery pack and / or the high-voltage box are / is subjected to thermal runaway, the thermosensitive lock catch becomes soft, and the rod body relieves fixation of the battery pack and / or the high-voltage box under the action of the elastic piece. The rod body can be used for abutting against the back face of the battery pack and / or the high-voltage box, so that when the battery pack and / or the high-voltage box are / is subjected to thermal runaway, the thermosensitive lock catch becomes soft, and the rod body pushes out the battery pack and / or the high-voltage box under the action of the elastic piece. According to the utility model, the fault battery pack or the high-voltage box can be physically isolated, so that other equipment is prevented from being influenced.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, specifically to a thermal locking push rod structure and energy storage system. Background Technology

[0002] In recent years, with the accelerated global energy transition, energy storage technology, as a key component of the new energy field, has been developing rapidly at an unprecedented pace. Currently, thermal runaway in energy storage systems has become a core challenge for the industry's safe development. Thermal runaway in energy storage systems not only causes huge economic losses but also poses a serious threat to personnel safety. Existing fire protection schemes and water-based fire suppression measures are insufficient to isolate battery packs or high-voltage boxes. When one battery pack experiences thermal runaway, it quickly spreads to other battery clusters, ultimately leading to the burning or even explosion of the entire container. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a thermal locking push rod structure and energy storage system that can physically isolate faulty battery packs or high-voltage boxes, preventing them from affecting other battery packs, high-voltage boxes, and other equipment.

[0004] To solve the above-mentioned technical problems, in the first aspect, this utility model provides a thermal lock push rod structure, including a fixing part, on which a rod body and a thermal lock are movably disposed. The rod body and the fixing part abut against each other through an elastic element. One end of the thermal lock passes through the fixing part and is inserted into the rod body, so that the rod body squeezes the elastic element and is fixed on the fixing part.

[0005] The rod can be inserted into the fixing lug of the battery pack and / or high voltage box to fix the battery pack and / or high voltage box, so that when the battery pack and / or high voltage box experiences thermal runaway, the thermal lock softens and the rod releases the fixation of the battery pack and / or high voltage box under the action of the elastic element.

[0006] The rod can be used to press against the back of the battery pack and / or high-voltage box, so that the thermal lock softens when the battery pack and / or high-voltage box experiences thermal runaway, and the rod pushes the battery pack and / or high-voltage box out under the action of the elastic element.

[0007] In some embodiments, the fixing part includes a base and a sleeve. The base is used to fix the energy storage box to the cluster frame or the inner wall of the energy storage box. The rod is slidably disposed in the sleeve, and the elastic element is disposed between the base and the rod.

[0008] In some embodiments, the rod body is provided with an insertion hole, the sleeve is provided with a limiting hole, and the thermal lock is simultaneously inserted into the insertion hole and the limiting hole.

[0009] Secondly, this utility model provides an energy storage system, including an energy storage box, the energy storage box including an electromagnetic box door, a fire detector and a cluster rack inside the energy storage box, the fire detector being used to control the opening and closing of the electromagnetic box door, the cluster rack being provided with multiple slide rails, the slide rails being arranged toward the electromagnetic box door, and a battery pack or high voltage box being provided on the slide rails.

[0010] The thermal locking push rod structure includes a first push rod structure and a second push rod structure. The first push rod structure is fixed on the cluster frame, and the rod of the first push rod structure fixes the battery pack or high voltage box on the cluster frame. The second push rod structure is fixed on the inner wall of the energy storage box, and the rod of the second push rod structure abuts against the back of the battery pack or high voltage box.

[0011] In some embodiments, the slide rail is arranged at an angle downward toward the electromagnetic box door.

[0012] In some embodiments, a fixing plate is provided on the cluster frame, and a fixing hole is provided on the fixing plate. A hole corresponding to the fixing hole is provided on the fixing ear plate of the battery pack or high voltage box. A limiting head is provided at one end of the rod of the first push rod structure, and the other end of the rod of the first push rod structure passes through the fixing plate and the fixing ear plate and abuts against the elastic member. The limiting head fixes the fixing ear plate on the fixing plate.

[0013] In some embodiments, an elastic ring is provided on the rod body, and the rod body is tightly attached to the fixing hole of the fixing plate and the hole of the fixing ear plate through the elastic ring.

[0014] In some embodiments, each of the battery packs or high-voltage boxes corresponds to a plurality of the second push rod structures.

[0015] In some embodiments, multiple cluster racks are provided, and each cluster rack corresponds to one fire detector.

[0016] In some embodiments, the fire detector is located at the top inside the energy storage box.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. The thermal locking push rod structure of this utility model can be fixed on the cluster frame to fix the battery pack and high voltage box. It can also be fixed on the inner wall of the energy storage box to push the battery pack and high voltage box. When a battery pack or high voltage box experiences thermal runaway, its temperature rises rapidly. The thermal locking buckle softens at high temperature, and the rod is pushed out under the action of the elastic element. The thermal locking push rod structure fixed on the cluster frame releases the fixation of the battery pack and high voltage box. The thermal locking push rod structure fixed on the inner wall of the energy storage box will push the thermally runaway battery pack and high voltage box out of the energy storage box, thereby achieving physical isolation and avoiding affecting other battery packs, high voltage boxes and other equipment.

[0019] 2. This utility model uses a thermal locking push rod structure to fix the battery pack and high-voltage box. The fixing method is simple and helps to improve installation efficiency.

[0020] 3. The thermal locking push rod structure of this utility model is a mechanical trigger structure, which does not rely on electric drive and completely avoids the maintenance cost of electrical aging.

[0021] 4. The thermal locking push rod structure of this utility model can be reused. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the thermal locking push rod structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the energy storage system of this utility model;

[0024] Figure 3 This is a schematic diagram of the fixing structure of the high-voltage box of this utility model;

[0025] Figure 4 This is a schematic diagram illustrating the function of the second push rod structure of this utility model.

[0026] Figure reference numerals: 1. Thermal lock push rod structure; 11. Base; 12. Sleeve; 13. Elastic element; 14. Rod body; 15. Thermal lock; 16. Elastic ring; 2. Energy storage box; 21. Electromagnetic box door; 22. Electromagnetic lock; 23. Fire detector; 24. Cluster frame; 25. Slide rail; 26. Battery pack; 27. High voltage box; 28. Fixing ear plate. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0028] like Figure 1 As shown, this utility model provides a thermal lock push rod structure, including a fixed part, on which a rod body 14 and a thermal lock 15 are movably disposed. The rod body 14 and the fixed part abut against each other through an elastic member 13. One end of the thermal lock 15 passes through the fixed part and is inserted into the rod body 14, so that the rod body 14 squeezes the elastic member 13 and is fixed on the fixed part.

[0029] The rod 14 can be inserted into the fixing lug 28 of the battery pack 26 and / or the high voltage box 27 to fix the battery pack 26 and / or the high voltage box 27, so that when the battery pack 26 and / or the high voltage box 27 experiences thermal runaway, the thermal lock 15 softens, and the rod 14 releases the fixation of the battery pack 26 and / or the high voltage box 27 under the action of the elastic element 13.

[0030] The rod 14 can be used to press against the back of the battery pack 26 and / or the high voltage box 27, so that when the battery pack 26 and / or the high voltage box 27 experiences thermal runaway, the thermal lock 15 softens, and the rod 14 pushes out the battery pack 26 and / or the high voltage box 27 under the action of the elastic member 13.

[0031] Understandably, the thermal locking push rod structure 1 can be fixed on the cluster frame 24 to fix the battery pack 26 and the high-voltage box 27. It can also be fixed on the inner wall of the energy storage box 2 to push the battery pack 26 and the high-voltage box 27. Under the action of the thermal locking buckle 15, the rod 14 is stuck on the fixing part and squeezes the elastic element 13. When the battery pack 26 or the high-voltage box 27 experiences thermal runaway, causing the surrounding temperature to rise, the thermal locking buckle 15 will gradually soften. Under the action of the elastic element 13, the rod 14 will be pushed out. The thermal locking push rod structure 1 fixed on the cluster frame 24 releases the fixation of the battery pack 26 and the high-voltage box 27. The thermal locking push rod structure 1 fixed on the inner wall of the energy storage box 2 will push the thermally runaway battery pack 26 and the high-voltage box 27 out of the energy storage box 2, thereby achieving physical isolation and avoiding affecting other battery packs 26 and high-voltage boxes 27 and other equipment.

[0032] The thermal locking buckle 15 can be made of glass fiber / modified PET composite material, giving it high hardness at room temperature and rapid softening above 80°C. The elastic element 13 is a compression spring.

[0033] like Figure 1 As shown, in some embodiments, the fixing part includes a base 11 and a sleeve 12, which can be connected by welding. The base 11 is used to fix on the cluster frame 24 of the energy storage box 2 or on the inner wall of the energy storage box 2. The rod 14 is slidably disposed in the sleeve 12. The elastic element 13 is disposed between the base 11 and the rod 14. The elastic element 13 can be welded to the base 11.

[0034] like Figure 1 As shown, in some embodiments, the rod 14 is provided with an insertion hole, and the sleeve 12 is provided with a limiting hole. The thermal lock 15 is simultaneously inserted into the insertion hole and the limiting hole. The limiting hole may be one or two symmetrically provided. Figure 1 The diagram illustrates the case of two symmetrically arranged openings.

[0035] like Figure 2 As shown, this utility model provides an energy storage system, including an energy storage box 2. The energy storage box 2 includes an electromagnetic box door 21, which is controlled by an electromagnetic lock 22. When the electromagnetic lock 22 is energized, the electromagnetic box door 21 is tightly closed. When the electromagnetic lock 22 is de-energized, the electromagnetic box door 21 can be opened at will.

[0036] The energy storage box 2 is equipped with a fire detector 23 and a cluster 24. The fire detector 23 can be a 5-in-1 fire detector (H2, VOC, CO, smoke, temperature) to monitor abnormalities in the energy storage box 2. When an abnormality is detected, a signal is sent to the controller, which disconnects the power supply to the electromagnetic lock 22, thereby controlling the opening and closing of the electromagnetic box door 21.

[0037] Multiple slide rails 25 are installed on the cluster frame 24, and the slide rails 25 are arranged facing the electromagnetic box door 21. A battery pack 26 or a high-voltage box 27 is installed on the slide rails 25.

[0038] The thermal locking push rod structure 1 is installed on the inner wall of the cluster frame 24 and the energy storage box 2. The thermal locking push rod structure 1 installed on the cluster frame 24 is the first push rod structure, and the thermal locking push rod structure 1 installed on the inner wall of the energy storage box 2 is the second push rod structure.

[0039] The first push rod structure is used to fix the battery pack 26 or the energy storage box 2, such as Figure 3 As shown, in some embodiments, a fixing plate is provided on the cluster frame 24, and fixing holes are provided on the fixing plate. The fixing ear plate 28 of the battery pack 26 or high voltage box 27 has holes corresponding to the fixing holes. One end of the rod 14 of the first push rod structure is provided with a limiting head, which is arranged downward. The other end of the rod 14 of the first push rod structure passes through the fixing plate and the fixing ear plate 28 and abuts against the elastic member 13. The limiting head fixes the fixing ear plate 28 to the fixing plate. When the thermal latch 15 softens, the rod 14 is pushed directly downward under the action of the elastic member 13, thereby releasing the connection between the battery pack 26 or high voltage box 27 and the cluster frame 24.

[0040] like Figure 1 , 4 As shown, the rod 14 of the second push rod structure abuts against the back of the battery pack 26 or the high voltage box 27. When the thermal lock 15 softens, the rod 14 pushes the battery pack 26 or the high voltage box 27 under the action of the elastic member 13, so that the battery pack 26 or the high voltage box 27 that has experienced thermal runaway is pushed out of the energy storage box 2.

[0041] In some embodiments, the slide rail 25 is arranged at an angle downward toward the electromagnetic box door 21.

[0042] Because the battery pack 26 is quite heavy, even with the guide rail reducing the force required to push it, there is still a risk that the battery pack 26 may not be able to be pushed out of the energy storage box 2. Therefore, the slide rail 25 is tilted downwards towards the electromagnetic door 21, so that after the battery pack 26 is released from its fixation, it can slide out of the energy storage box 2 with a small pushing force, without requiring a large pushing force. The slide rail 25 only needs to be set with a small tilt angle (e.g., 5°) to ensure that the battery pack 26 can slide out of the energy storage box 2 smoothly.

[0043] like Figure 1As shown, in some embodiments, an elastic ring 16 is provided on the rod 14, such as... Figure 3 As shown, the rod 14 is tightly attached to the fixing hole of the fixing plate and the hole of the fixing ear plate 28 through the elastic ring 16.

[0044] Since the battery pack 26 and the high voltage box 27 are fixed to the cluster frame 24 by the rod 14, if there is a gap between the rod 14 and the fixing hole of the fixing plate and the hole of the fixing ear plate 28, the battery pack 26 and the high voltage box 27 will vibrate during transportation. Therefore, by setting the elastic ring 16, a buffering effect can be achieved.

[0045] In some embodiments, each battery pack 26 or high-voltage box 27 corresponds to multiple second push rod structures. The number of second push rod structures is specifically determined based on the weight of the battery pack 26 and high-voltage box 27, ensuring that they can be smoothly pushed out of the energy storage box 2.

[0046] like Figure 1 As shown, in some embodiments, multiple cluster racks 24 are provided, and each cluster rack 24 corresponds to a fire detector 23, which is located on the top inside the energy storage box 2.

[0047] The working principle of this energy storage system:

[0048] When the fire detector 23 detects an anomaly, it sends a signal to the controller. The controller disconnects the power supply to the electromagnetic lock 22, and the electromagnetic box door 21 is in an openable state. As the temperature around the thermally runaway battery pack 26 or high-voltage box 27 rises, the thermally sensitive latches 15 of the corresponding first push rod structure and second push rod structure heat up and soften. The rod 14 of the first push rod structure is pushed out of the sleeve 12 under the action of the elastic element 13, releasing the fixation on the thermally runaway battery pack 26 or high-voltage box 27. The rod 14 of the second push rod structure is pushed out of the sleeve 12 under the action of the elastic element 13, generating a thrust on the back of the thermally runaway battery pack 26 or high-voltage box 27. Under the action of the thrust, the thermally runaway battery pack 26 or high-voltage box 27 slides out of the energy storage box 2 along the track. Since the electromagnetic box door 21 is in an openable state, the electromagnetic box door 21 will be knocked open by the thermally runaway battery pack 26 or high-voltage box 27.

[0049] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A heat sensitive catch push rod structure, characterized by: Includes a fixing part, on which a rod (14) and a thermal lock (15) are movably disposed. The rod (14) abuts against the fixing part through an elastic element (13). One end of the thermal lock (15) passes through the fixing part and is inserted into the rod (14), so that the rod (14) squeezes the elastic element (13) and is fixed on the fixing part. The rod (14) can be inserted into the fixing lug (28) of the battery pack (26) and / or the high voltage box (27) to fix the battery pack (26) and / or the high voltage box (27), so that when the battery pack (26) and / or the high voltage box (27) undergoes thermal runaway, the thermal lock (15) softens, and the rod (14) releases the fixation of the battery pack (26) and / or the high voltage box (27) under the action of the elastic member (13); The rod (14) can be used to abut against the back of the battery pack (26) and / or the high voltage box (27), so that the thermal lock (15) softens when the battery pack (26) and / or the high voltage box (27) experiences thermal runaway, and the rod (14) pushes out the battery pack (26) and / or the high voltage box (27) under the action of the elastic member (13).

2. The heat sensitive catch push rod structure of claim 1, wherein: The fixing part includes a base (11) and a sleeve (12). The base (11) is used to fix the energy storage box (2) on the cluster frame (24) or on the inner wall of the energy storage box (2). The rod (14) is slidably disposed in the sleeve (12). The elastic element (13) is disposed between the base (11) and the rod (14).

3. The heat sensitive catch push rod structure of claim 2, wherein: The rod (14) is provided with an insertion hole, and the sleeve (12) is provided with a limiting hole. The thermal lock (15) is inserted into both the insertion hole and the limiting hole.

4. An energy storage system of the heat sensitive lock push rod structure according to any one of claims 1 to 3, characterized in that: The device includes an energy storage box (2), which includes an electromagnetic box door (21). Inside the energy storage box (2), a fire detector (23) and a cluster rack (24) are installed. The fire detector (23) is used to control the opening and closing of the electromagnetic box door (21). Multiple slide rails (25) are installed on the cluster rack (24). The slide rails (25) are arranged facing the electromagnetic box door (21). A battery pack (26) or a high-voltage box (27) is installed on the slide rails (25). The thermal locking push rod structure (1) includes a first push rod structure and a second push rod structure. The first push rod structure is fixed on the cluster frame (24). The rod body (14) of the first push rod structure fixes the battery pack (26) or high voltage box (27) on the cluster frame (24). The second push rod structure is fixed on the inner wall of the energy storage box (2). The rod body (14) of the second push rod structure abuts against the back of the battery pack (26) or high voltage box (27).

5. The energy storage system of claim 4, wherein: The slide rail (25) is arranged at an angle downward toward the electromagnetic box door (21).

6. The energy storage system of claim 4, wherein: A fixing plate is provided on the cluster frame (24), and a fixing hole is provided on the fixing plate. A hole corresponding to the fixing hole is provided on the fixing ear plate (28) of the battery pack (26) or the high voltage box (27). A limiting head is provided at one end of the rod body (14) of the first push rod structure. The other end of the rod body (14) of the first push rod structure passes through the fixing plate and the fixing ear plate (28) and abuts against the elastic member (13). The limiting head fixes the fixing ear plate (28) on the fixing plate.

7. The energy storage system of claim 6, wherein: An elastic ring (16) is provided on the rod (14), and the rod (14) is tightly attached to the fixing hole of the fixing plate and the hole of the fixing ear plate (28) through the elastic ring (16).

8. An energy storage system according to any one of claims 4 to 7, characterised in that: Each of the battery packs (26) or high-voltage boxes (27) corresponds to a plurality of the second push rod structures.

9. An energy storage system according to any one of claims 4 to 7, characterised in that: Multiple cluster frames (24) are provided, and each cluster frame (24) corresponds to a fire detector (23).

10. An energy storage system according to any one of claims 4 to 7, characterised in that: The fire detector (23) is installed on the top inside the energy storage box (2).

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