Fireproof battery cabinet

Abstract

The utility model discloses a fireproof battery cabinet. The fireproof battery cabinet comprises a bracket, a battery bin and a water tank, the battery compartment and the water tank are arranged on the bracket; the water tank is located below the battery bin and used for storing water. The battery compartment comprises a battery holder, an elastic pressing part and a rear plate, the battery holder is rotatably arranged on the bracket and is used for placing a battery; the elastic pressing part is arranged on the side wall of the bracket; when the battery is not on fire, the elastic pressing part is propped against the front part of the battery holder to prevent the battery holder from rotating; and when the battery is on fire, the elastic pressing part moves in the direction far away from the battery holder to trigger the battery holder to rotate, so that the battery slides into the water tank. According to the battery cabinet, when the battery catches fire, the elastic pressing part automatically moves in the direction away from the battery holder so that the battery holder can rotate, the battery slides into the water tank to extinguish fire, a sensor and electric control equipment are not needed in the process, the situation that the sensor and the electric control equipment are burnt out due to the battery catches fire and cannot achieve fire extinguishing control is avoided, fireproof performance is improved, and cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery technology, and in particular to a fireproof lithium battery cabinet. Background Technology

[0002] With the widespread use of electric vehicles, battery charging cabinets or battery swapping cabinets are used to charge or replace batteries to meet the needs of fast charging or power consumption. Batteries (especially lithium batteries) are prone to fires during charging or storage due to short circuits and other reasons. Current battery charging cabinets or swapping cabinets are equipped with dry powder fire extinguishers and sprinkler systems to extinguish battery fires. However, because lithium batteries generate a large amount of heat and flame instantaneously when they thermally fail, the amount of dry powder in the fire extinguisher and the water in the sprinkler system are insufficient to extinguish the fire in a short time. This can easily affect batteries in other battery compartments within the cabinet, or even cause the entire cabinet's batteries to catch fire, resulting in significant losses. Summary of the Invention

[0003] To further improve the fire resistance of battery cabinets, this utility model proposes a fireproof battery cabinet.

[0004] To achieve the above objectives, this utility model provides a fireproof battery cabinet, comprising: a support frame, a battery compartment, and a water tank; the battery compartment and the water tank are mounted on the support frame; the water tank is located below the battery compartment and is used to store water;

[0005] The battery compartment includes a battery holder, an elastic pressing part, and a rear plate. The battery holder is rotatably mounted on the bracket for holding the battery. The elastic pressing part is disposed on the side wall of the bracket. When the battery is not on fire, the elastic pressing part presses against the front of the battery holder to prevent the battery holder from rotating. When the battery is on fire, the elastic pressing part moves away from the battery holder to trigger the battery holder to rotate, causing the battery to slide into the water tank.

[0006] Optionally, the battery compartment further includes a rear panel, which is hinged to the bracket and disposed behind the battery holder for closing the battery compartment.

[0007] Optionally, the front end of the battery holder abuts against the crossbar of the bracket.

[0008] Optionally, the elastic pressing part includes: a housing, a spring, a push rod, and a thermal expansion material; the spring, the push rod, and the thermal expansion material are disposed inside the housing; one end of the spring is connected to the top of the housing, and the other end is connected to the push rod; the thermal expansion material is placed in the lower part of the housing and close to the push rod.

[0009] Optionally, the push rod includes a circular plate and a pressing rod; the diameter of the circular plate is less than or equal to the inner diameter of the housing, one side is connected to the spring, and the other side is connected to the pressing rod.

[0010] Optionally, the lower part of the outer shell has a concave structure, the thermal expansion material is placed in the groove of the concave structure, and the pressing rod is disposed in the central hole of the concave structure.

[0011] Optionally, the thermally expanding material is low-temperature expanded graphite.

[0012] Optionally, the upper and lower parts of the housing are configured to be detachably connected.

[0013] Optionally, the water tank is provided with a water inlet and a water outlet for water inlet and outlet, respectively.

[0014] This utility model has the following beneficial effects:

[0015] The fireproof battery cabinet of this utility model includes a battery compartment comprising a battery base and an elastic pressing part. When the battery catches fire, the elastic pressing part automatically moves away from the battery base to rotate the battery base, and the battery slides towards the water tank and falls into the water tank to extinguish the fire. This process does not require the use of sensors and electrical control equipment, avoiding the inability to achieve fire extinguishing control due to the battery catching fire burning the sensors and electrical control equipment. This improves fire resistance performance and also reduces the cost of the battery cabinet.

[0016] The elastic pressing part of this invention senses temperature changes through a thermal expansion material, which determines whether the push rod of the elastic pressing part is pressed or moved away from the battery holder, thereby achieving balance or rotation of the battery holder. The structure is simple, requires no electronic control equipment, and further reduces costs.

[0017] The top and bottom of the outer shell of the elastic pressing part of this invention are detachable, and the lower thermal expansion material can be replaced, thereby making the elastic pressing part reusable and reducing replacement costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the fireproof battery cabinet structure according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the fireproof battery cabinet structure from another perspective according to an embodiment of this utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of the elastic pressing part structure according to an embodiment of the present utility model.

[0021] Explanation of icon numbers:

[0022] 1. Bracket; 2. Battery compartment; 21. Battery holder; 211. Rotating shaft; 212. Crossbar; 22. Elastic pressing part; 221. Outer shell; 2211. Concave structure; 2212. Inner groove; 2213. Central hole; 222. Spring; 223. Push rod; 2231. Circular plate; 2232. Pressing rod; 224. Thermal expansion material; 23. Back plate; 3. Water tank; 4. Battery. Detailed Implementation

[0023] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0024] Reference Figure 1-2 A fireproof battery cabinet includes: a support frame 1, a battery compartment 2, and a water tank 3; the battery compartment 2 and the water tank 3 are mounted on the support frame 1; the water tank 3 is located below the battery compartment 2 and is used to store water.

[0025] The battery compartment 2 includes a battery holder 21, an elastic pressing part 22, and a rear plate 23. The battery holder 21 is rotatably mounted on the bracket 1 for holding the battery 4. The elastic pressing part 22 is disposed on the side wall of the bracket 1. When the battery is not on fire, the elastic pressing part 22 presses against the front of the battery holder 21 to prevent the battery holder 21 from rotating. When the battery catches fire, the elastic pressing part 22 moves away from the battery holder 21 to trigger the battery holder 21 to rotate, causing the battery 4 to slide into the water tank 3. The rear plate 23 is hinged to the bracket 1 and is disposed behind the battery holder 21 to seal the battery compartment 2 and prevent it from being affected by fire, dust, etc. from other battery compartments 2.

[0026] Furthermore, the battery holder 21 is rotatably connected to the bracket 1 via a rotating shaft 211. To further improve the stability of the battery holder 21 in placing the battery 4, the front end of the battery holder 21 abuts against the crossbar 212 of the bracket 1.

[0027] Furthermore, such as Figure 3As shown, the elastic pressing part 22 includes: a housing 221, a spring 222, a push rod 223, and a thermal expansion material 224; the spring 222, the push rod 223, and the thermal expansion material 224 are disposed inside the housing 221. Specifically, one end of the spring 222 is connected to the top of the housing 221, and the other end is connected to the push rod 223; the thermal expansion material 224 is placed in the lower part of the housing 221 and close to the push rod 223. Under normal circumstances, when the battery is not on fire, the push rod 223 presses against the front of the battery holder 21 under the elastic force of the spring 222 and its own weight, so that the front end of the rotating plate 211 abuts against the crossbar of the bracket 1, and the battery 4 can be stably stored on the battery holder 21. When the battery catches fire, the temperature rises, the expansion material 224 expands due to heat, thereby pushing the push rod 223 to move upward, triggering the rotating plate 211 to rotate and separate from the crossbar 212 of the bracket 1. The battery 4 slides towards the rear plate 23, the rear plate 23 rotates under force, and the battery 4 slides into the water tank 3 to complete the fire extinguishing. Furthermore, the top of the elastic pressing part 22 is set on the side wall of the bracket 1 by the mounting rod 225.

[0028] Furthermore, the push rod 223 includes a circular plate 2231 and a pressing rod 2232. The diameter of the circular plate 2231 is less than or equal to the inner diameter of the outer casing 221, one side is connected to the spring 222, and the other side is connected to the pressing rod 2232.

[0029] Furthermore, the lower part of the outer shell 221 is a concave structure 2211, and the thermal expansion material 224 is placed in the groove 2212 of the concave structure 2211. The pressing rod 2232 is disposed in the central hole 2213 of the concave structure 2211. When the battery catches fire, the thermal expansion material 224 expands due to heat, pushing the circular plate 2231, causing the spring 222 to contract towards the top of the outer shell 221. The pressing rod 2232 is forced to move in the direction of detaching from the battery holder 21, triggering the battery holder 21 to rotate, thereby causing the battery 4 to slide into the water tank 3. The thermal expansion material is selected according to the temperature range and thrust requirements during expansion and ignition. In this embodiment, the thermal expansion material 224 is low-temperature expanded graphite.

[0030] Furthermore, the upper and lower parts of the housing 221 are detachably connected to facilitate the installation of springs and push rods, as well as the replacement of the thermal expansion material 224. For example, the top and bottom of the housing 221 are threaded together.

[0031] Furthermore, the water tank 3 is provided with a water inlet and a water outlet for water inlet and outlet, respectively.

[0032] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A fireproof battery cabinet, characterized in that, include: A support frame (1), a battery compartment (2), and a water tank (3); the battery compartment (2) and the water tank (3) are mounted on the support frame (1); the water tank (3) is located below the battery compartment (2) and is used to store water; The battery compartment (2) includes a battery holder (21), an elastic pressing part (22), and a back plate (23). The battery holder (21) is rotatably mounted on the bracket (1) for placing the battery (4). The elastic pressing part (22) is mounted on the side wall of the bracket (1). When the battery is not on fire, the elastic pressing part (22) presses against the front of the battery holder (21) to prevent the battery holder (21) from rotating. When the battery is on fire, the elastic pressing part (22) moves away from the battery holder (21) to trigger the battery holder (21) to rotate, causing the battery (4) to slide into the water tank (3).

2. The fireproof battery cabinet according to claim 1, characterized in that, The battery compartment (2) further includes a rear plate (23), which is hinged to the bracket (1) and is located behind the battery holder (21) to close the battery compartment (2).

3. The fireproof battery cabinet according to claim 1, characterized in that, The front end of the battery holder (21) abuts against the crossbar (212) of the bracket (1).

4. The fireproof battery cabinet according to claim 1, characterized in that, The elastic pressing part (22) includes: a shell (221), a spring (222), a push rod (223), and a thermal expansion material (224); the spring (222), the push rod (223), and the thermal expansion material (224) are disposed inside the shell (221); one end of the spring (222) is connected to the top of the shell (221), and the other end is connected to the push rod (223); the thermal expansion material (224) is placed in the lower part of the shell (221) and close to the push rod (223).

5. The fireproof battery cabinet according to claim 4, characterized in that, The push rod (223) includes a circular plate (2231) and a pressing rod (2232); the diameter of the circular plate (2231) is less than or equal to the inner diameter of the outer shell (221), one side is connected to the spring (222), and the other side is connected to the pressing rod (2232).

6. The fireproof battery cabinet according to any one of claims 4-5, characterized in that, The lower part of the outer shell (221) is a concave structure (2211), the thermal expansion material (224) is placed in the groove (2212) of the concave structure (2211), and the pressing rod (2232) is set in the central hole (2213) of the concave structure (2211).

7. The fireproof battery cabinet according to any one of claims 4-5, characterized in that, The thermal expansion material (224) is low-temperature expanded graphite.

8. The fireproof battery cabinet according to any one of claims 4-5, characterized in that, The upper and lower parts of the outer casing (221) are configured to be detachably connected.

9. The fireproof battery cabinet according to any one of claims 1-4, characterized in that, The water tank (3) is provided with an inlet hole and an outlet hole, which are used for water intake and water discharge respectively.

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