Lithium battery storage explosion-proof device

Abstract

The utility model belongs to the technical field of lithium battery storage, and particularly relates to a lithium battery storage explosion-proof device which comprises a storage box, a heat dissipation assembly is arranged in the storage box, a temperature sensor is fixedly installed on the top of the storage box, and a controller is fixedly installed on the top of the storage box. An air exhaust assembly and an auxiliary heat dissipation assembly are arranged on the outer wall of the storage box, the air exhaust assembly comprises an air bin, and the air bin is fixedly connected to the outer wall of the storage box. According to the lithium battery storage explosion-proof device, through the use of an air exhaust assembly, when a temperature sensor senses that the temperature in a storage box is too high, a controller controls a motor to start, an eccentric wheel rotates, under the action of a reset spring, a piston plate moves up and down in an air bin, and then a one-way air exhaust opening absorbs air in the storage box; and gas is exhausted from the one-way exhaust port, so that the content of oxygen in the storage box is reduced, the lithium battery is prevented from being overheated to generate chemical reaction, and the lithium battery storage explosion-proof effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery storage technology, specifically to an explosion-proof device for lithium battery storage. Background Technology

[0002] Under abnormal conditions such as overheating, overcharging, or short circuit, lithium batteries may experience uncontrolled internal chemical reactions, leading to a rapid rise in battery temperature and potentially causing a fire or explosion. Lithium batteries are generally stored in storage boxes during use.

[0003] Currently, among existing technologies, Chinese patent CN 118017123 A discloses an explosion-proof device for lithium battery storage. This device, through the cooperation of a support plate, worm gear, worm wheel, crescent-shaped telescopic rod, spring one, spring two, telescopic rod, and airbag, allows the lithium battery to be easily fixed in the receiving slot, preventing the lithium battery from shaking in the receiving slot. At the same time, the support plate, telescopic rod, and airbag are linked to activate the fire extinguishing structure. The fire extinguishing structure cannot be activated in the receiving slot where the lithium battery is not placed, avoiding unnecessary waste of fire extinguishing water. Furthermore, this storage device can be used continuously, improving its practicality.

[0004] However, in actual use, the device cannot achieve the explosion-proof effect because the lithium battery will undergo a chemical reaction due to overheating, and water may exacerbate the chemical reaction. Therefore, this utility model proposes an explosion-proof device for lithium battery storage. Utility Model Content

[0005] The main objective of this invention is to provide an explosion-proof lithium battery storage device that can solve the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention proposes the following technical solution:

[0007] An explosion-proof device for lithium battery storage includes a storage box, an internal heat dissipation assembly, a temperature sensor and a controller fixedly mounted on the top of the storage box, and an air extraction assembly and an auxiliary heat dissipation assembly mounted on the outer wall of the storage box. The air extraction assembly includes:

[0008] An air chamber is fixedly connected to the outer wall of the storage box. The top of the air chamber is connected to a one-way air extraction port, and the side wall of the air chamber is connected to a one-way exhaust port.

[0009] A piston plate is connected to the gas chamber by a piston, and the piston plate is elastically connected to the inner wall of the gas chamber by a return spring.

[0010] The mounting plate is fixedly connected to the outer wall of the air chamber. A motor is fixedly connected to the lower side of the mounting plate, and an eccentric wheel is fixedly connected to the output shaft of the motor.

[0011] Preferably, the one-way air extraction port is connected to the storage box, and the output shaft of the motor passes through the air chamber and is rotatably connected to the air chamber.

[0012] Preferably, the auxiliary heat dissipation component includes a fixed shell, which is fixedly connected to the outer wall of the storage box. A rotating shaft is sleeved on the fixed shell, and a fan blade is fixedly connected to the end of the rotating shaft. The rotating shaft is connected to the output shaft of the motor through a transmission belt. The rotation of the output shaft of the motor drives the transmission belt, which in turn drives the rotating shaft to rotate, causing the fan blade to rotate and increasing the airflow speed.

[0013] Preferably, a support plate is fixedly connected to the inner wall of the storage box, and a partition is fixedly connected to the support plate.

[0014] Preferably, the storage box has heat dissipation grooves on its side wall, and the heat dissipation grooves are located below the support plate.

[0015] Preferably, the heat dissipation component includes a heat-absorbing sheet, a copper tube is fixedly connected to the lower side of the heat-absorbing sheet, and heat dissipation fins are fixedly connected to the bottom of the copper tube. The heat-absorbing sheet can absorb heat and then conduct heat to the heat dissipation fins through the copper tube, which facilitates heat dissipation of the stored lithium battery and reduces the probability of the lithium battery overheating and exploding.

[0016] This utility model provides an explosion-proof device for lithium battery storage, which has the following beneficial effects:

[0017] (1) By using the air extraction component, when the temperature sensor detects that the temperature in the storage box is too high, the controller controls the motor to start, so that the eccentric wheel rotates. Under the action of the reset spring, the piston plate moves up and down in the air chamber, and then the one-way air extraction port absorbs the air in the storage box. The gas is discharged from the one-way exhaust port, reducing the oxygen content in the storage box, preventing the lithium battery from overheating and causing a chemical reaction, and achieving the effect of explosion-proof lithium battery storage.

[0018] (2) By using heat dissipation components and auxiliary heat dissipation components, the heat absorption sheet can absorb heat and then conduct heat to the heat dissipation fins through copper pipes, which facilitates the heat dissipation of the stored lithium battery. At the same time, the output shaft of the motor rotates, drives the transmission belt to drive the shaft to rotate, and makes the fan blades rotate, increasing the air flow rate, accelerating the heat dissipation of the heat dissipation fins, thereby reducing the temperature of the stored lithium battery and reducing the probability of the lithium battery overheating and exploding. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0021] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the heat dissipation component structure of this utility model;

[0023] Figure 4 This is a schematic diagram of part of the structure of this utility model;

[0024] Figure 5 This utility model Figure 4 Schematic diagram of structure A in the middle.

[0025] In the diagram: 1. Storage box; 2. Heat dissipation assembly; 3. Temperature sensor; 4. Controller; 5. Air extraction assembly; 6. Auxiliary heat dissipation assembly; 101. Partition plate; 102. Heat dissipation groove; 21. Heat absorption fin; 22. Copper pipe; 23. Heat dissipation fins; 51. Air chamber; 52. One-way air extraction port; 53. One-way exhaust port; 54. Piston plate; 55. Return spring; 56. Mounting plate; 57. Motor; 58. Eccentric wheel; 61. Fixed shell; 62. Rotating shaft; 63. Fan blade; 64. Drive belt.

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. 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] Please see Figures 1-5This utility model proposes an explosion-proof lithium battery storage device, including a storage box 1. A support plate is fixedly connected to the inner wall of the storage box 1, and a partition 101 is fixedly connected to the support plate. The support plate is used to place the lithium battery. A heat dissipation groove 102 is opened on the side wall of the storage box 1, and the heat dissipation groove 102 is located below the support plate. The heat dissipation groove 102 is used to dissipate heat from the lithium battery. A heat dissipation component 2 is provided inside the storage box 1. A temperature sensor 3 is fixedly installed on the top of the storage box 1. A controller 4 is fixedly installed on the top of the storage box 1. An air extraction component 5 and an auxiliary heat dissipation component 6 are provided on the outer wall of the storage box 1.

[0029] In an embodiment of this utility model, in order to dissipate heat from the lithium battery, the heat dissipation component 2 specifically includes a heat-absorbing sheet 21, a copper tube 22 is fixedly connected to the lower side of the heat-absorbing sheet 21, and a heat dissipation fin 23 is fixedly connected to the bottom of the copper tube 22. The heat-absorbing sheet 21 can absorb heat and then conduct heat to the heat dissipation fin 23 through the copper tube 22, which facilitates the heat dissipation of the stored lithium battery and reduces the probability of the lithium battery overheating and exploding.

[0030] Furthermore, to prevent the lithium battery from overheating and undergoing a chemical reaction that could lead to an explosion, the venting assembly 5 specifically includes a vent chamber 51, a piston plate 54, and a mounting plate 56. The vent chamber 51 is fixedly connected to the outer wall of the storage box 1. A one-way venting port 52 is connected to the top of the vent chamber 51, and a one-way exhaust port 53 is connected to the side wall of the vent chamber 51. The piston plate 54 is piston-connected to the vent chamber 51, and the piston plate 54 is elastically connected to the inner wall of the vent chamber 51 via a return spring 55. The mounting plate 56 is fixedly connected to the outer wall of the vent chamber 51, and a motor 57 is fixedly connected to the lower side of the mounting plate 56. The output shaft of the motor 57... An eccentric wheel 58 is fixedly connected, and a one-way air extraction port 52 is connected to the storage box 1. The output shaft of the motor 57 passes through the air chamber 51 and is rotatably connected to the air chamber 51. When the temperature sensor 3 senses that the temperature in the storage box 1 is too high, the controller 4 controls the motor 57 to start, causing the eccentric wheel 58 to rotate. Under the action of the return spring 55, the piston plate 54 moves up and down in the air chamber 51, thereby absorbing the air in the storage box 1 through the one-way air extraction port 52. The gas is discharged from the one-way exhaust port 53, reducing the oxygen content in the storage box 1, preventing the lithium battery from overheating and undergoing a chemical reaction, and achieving the effect of explosion-proof lithium battery storage.

[0031] Furthermore, in order to further improve the heat dissipation effect of the lithium battery, the auxiliary heat dissipation component 6 specifically includes a fixed shell 61, which is fixedly connected to the outer wall of the storage box 1. The fixed shell 61 is fitted with a rotating shaft 62, and a fan blade 63 is fixedly connected to the end of the rotating shaft 62. The rotating shaft 62 is connected to the output shaft of the motor 57 through a transmission belt 64. When the output shaft of the motor 57 rotates, it drives the transmission belt 64 to rotate, which in turn drives the rotating shaft 62 to rotate, causing the fan blade 63 to rotate, increasing the airflow speed, accelerating the heat dissipation of the heat dissipation fins 23, thereby reducing the temperature of the stored lithium battery and reducing the probability of the lithium battery overheating and exploding.

[0032] It should be noted that all the electrical components mentioned above are existing technology products. Those skilled in the art should select, install, and debug the circuits according to their needs to ensure that all electrical appliances function properly. All components are general standard parts or parts known to those skilled in the art, and their structures and principles can be obtained by those skilled in the art through technical manuals or conventional experimental methods. No specific restrictions are imposed here.

[0033] During use, when the temperature sensor 3 detects that the temperature in the storage box 1 is too high, the controller 4 controls the motor 57 to start, causing the eccentric wheel 58 to rotate. Under the action of the return spring 55, the piston plate 54 moves up and down in the air chamber 51, thereby drawing air from the storage box 1 through the one-way air intake port 52 and expelling the gas from the one-way exhaust port 53. This reduces the oxygen content in the storage box 1 and prevents the lithium battery from overheating and undergoing a chemical reaction. At the same time, the output shaft of the motor 57 rotates, driving the transmission belt 64 to drive the rotating shaft 62 to rotate, causing the fan blades 63 to rotate, increasing the airflow speed, accelerating the heat dissipation of the heat sink fins 23, and thus reducing the temperature of the stored lithium battery.

[0034] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A lithium battery storage explosion-proof device, comprising a storage box (1), characterized in that: The storage box (1) is equipped with a heat dissipation assembly (2) inside. A temperature sensor (3) is fixedly installed on the top of the storage box (1). A controller (4) is fixedly installed on the top of the storage box (1). An air extraction assembly (5) and an auxiliary heat dissipation assembly (6) are provided on the outer wall of the storage box (1). The air extraction assembly (5) includes: Air chamber (51), the air chamber (51) is fixedly connected to the outer wall of the storage box (1), the top of the air chamber (51) is connected to a one-way air extraction port (52), and the side wall of the air chamber (51) is connected to a one-way exhaust port (53). Piston plate (54), the piston plate (54) is piston-connected in air chamber (51), the piston plate (54) and the inner wall of air chamber (51) are elastically connected by return spring (55); Mounting plate (56) is fixedly connected to the outer wall of air chamber (51). A motor (57) is fixedly connected to the lower side of the mounting plate (56). An eccentric wheel (58) is fixedly connected to the output shaft of the motor (57).

2. The explosion-proof lithium battery storage device according to claim 1, characterized in that: The one-way air extraction port (52) is connected to the storage box (1), and the output shaft of the motor (57) passes through the air chamber (51) and is rotatably connected to the air chamber (51).

3. The explosion-proof lithium battery storage device according to claim 1, characterized in that: The auxiliary heat dissipation component (6) includes a fixed shell (61), which is fixedly connected to the outer wall of the storage box (1). The fixed shell (61) is fitted with a rotating shaft (62), and a fan blade (63) is fixedly connected to the end of the rotating shaft (62). The rotating shaft (62) is connected to the output shaft of the motor (57) via a transmission belt (64).

4. The explosion-proof lithium battery storage device according to claim 1, characterized in that: A support plate is fixedly connected to the inner wall of the storage box (1), and a partition (101) is fixedly connected to the support plate.

5. The explosion-proof lithium battery storage device according to claim 4, characterized in that: The storage box (1) has a heat dissipation groove (102) on its side wall, and the heat dissipation groove (102) is located below the support plate.

6. The explosion-proof lithium battery storage device according to claim 1, characterized in that: The heat dissipation assembly (2) includes a heat absorption plate (21), a copper tube (22) is fixedly connected to the lower side of the heat absorption plate (21), and a heat dissipation fin (23) is fixedly connected to the bottom of the copper tube (22).

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