Safe battery box structure with rapid heat dissipation function

Abstract

The invention discloses a safety type battery box structure with a rapid heat dissipation function, the safety type battery box structure comprises an outer box body, bases are mounted at four corners of the bottom of the outer box body through elastic buffer mechanisms, the elastic buffer mechanisms are used for buffering the outer box body, an inner box body is fixed in the outer box body through support columns, and the inner box body is fixed in the outer box body through the support columns. A plurality of partition plates arranged at equal intervals are fixed in the inner box body, the interior of the inner box body is divided into a plurality of unit battery storage cavities through the partition plates, a cover plate is mounted at the top of the outer box body, a mounting plate is fixed to the bottom of the cover plate through a first connecting rod, and a high-temperature triggering fire extinguishing mechanism is mounted at the bottom of the mounting plate; the high-temperature triggering fire extinguishing mechanism is located in the unit battery containing cavity, and an air blowing cooling mechanism is installed on the side edge of the outer box body and used for blowing cold air into the outer box body. The heat dissipation effect is achieved, the lithium battery thermal runaway can be rapidly responded, and fire spreading is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery boxes, and in particular to a safe battery box structure with a rapid heat dissipation function. Background Art

[0002] The battery box is an important place for storing lithium batteries. Since lithium batteries release a lot of heat during operation, this poses a hidden danger to the safe use of lithium batteries. In traditional lithium battery boxes, when a lithium battery has thermal runaway, it will quickly spread to other lithium batteries, causing greater and more extensive damage. Traditional lithium batteries lack the necessary means for heat dissipation and fire protection, resulting in frequent and serious fire accidents. In order to better solve this problem, we propose a safe battery box structure with rapid heat dissipation function. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a safe battery box structure with a rapid heat dissipation function.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A safe battery box structure with a rapid heat dissipation function comprises an outer box body, wherein the four bottom corners of the outer box body are all equipped with bases through elastic buffer mechanisms, the elastic buffer mechanisms are used to buffer the outer box body, an inner box body is fixed to the inside of the outer box body through support columns, a plurality of equidistantly arranged partitions are fixed to the inside of the inner box body, the interior of the inner box body is divided into a plurality of unit battery storage cavities by the partitions, a cover plate is installed on the top of the outer box body, a mounting plate is fixed to the bottom of the cover plate through a first connecting rod, a high-temperature triggered fire extinguishing mechanism is installed on the bottom of the mounting plate, the high-temperature triggered fire extinguishing mechanism is located in the unit battery storage cavity, and an air blast cooling mechanism is installed on the side of the outer box body, the air blast cooling mechanism is used to blow cold air into the outer box body.

[0006] Preferably, the elastic buffer mechanism includes a stud, a nut, a leaf spring bar, a slider, a first strip groove, and a second strip groove, the stud is fixed to the bottom of the outer box body, the stud slides through the base, a nut is threadedly sleeved on the stud, a second strip groove is provided on the top of the base, sliders are fixed at both ends of the leaf spring bar, the slider is slidably installed in the second strip groove, a first strip groove is provided at the bottom of the outer box body, and the leaf spring bar is located in the first strip groove.

[0007] Preferably, a plurality of the first strip grooves and the second strip grooves are provided, and the first strip grooves and the second strip grooves correspond to each other one by one.

[0008] Preferably, a temperature sensor is installed on the inner wall of the unit battery storage cavity.

[0009] Preferably, a threading hole is provided on the side of the unit battery storage cavity.

[0010] Preferably, the high-temperature triggered fire extinguishing mechanism includes a perfluorohexanone storage tank, an air duct, a second connecting rod, a fixed plate, a thermosensitive glass ball, and a plug. The perfluorohexanone storage tank is fixed to the bottom of the mounting plate, the perfluorohexanone storage tank is connected to the air duct, a fixed plate is fixed to the air duct via the second connecting rod, a thermosensitive glass ball is fixed to the fixed plate, one end of the thermosensitive glass ball is fixedly sleeved with a plug, and the plug is sealingly sleeved on the port of the air duct.

[0011] Preferably, the air blowing and cooling mechanism includes a sleeve, a carbon dioxide storage tank, a first exhaust pipe, a regulating valve, and a first solenoid valve. The sleeve is fixed on the outer box body, the interior of the sleeve is sleeved with the carbon dioxide storage tank, the outlet of the carbon dioxide storage tank is connected to the outer box body through the first exhaust pipe, and the regulating valve and the first solenoid valve are installed on the pipe section of the first exhaust pipe.

[0012] Preferably, the air blowing and cooling mechanism also includes a blower, a second exhaust pipe, and a second solenoid valve. The blower is fixed on the outer box body. A second exhaust pipe is connected between the outlet on the outer box body and the first exhaust pipe. A second solenoid valve is installed on the pipe section of the second exhaust pipe.

[0013] Preferably, a sleeve cover is hingedly connected to the sleeve.

[0014] Preferably, the partition is a hollow structure, a second exhaust hole is provided at the top of the partition, a first exhaust hole is provided at the bottom of the inner box, and the bottom of the partition is connected to the outer box through the first exhaust hole.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, by providing an outer box, the inner box can be protected, reducing the direct impact of the outside on the inner box, and the protection is good; the elastic buffer mechanism is used to buffer the outer box, so that the battery box can effectively avoid large impact vibration during movement, and the buffering effect is good;

[0017] 2. In the present invention, the lithium batteries are separated by separators, which can prevent heat transfer between the lithium batteries and prevent the heat from being transferred to other lithium batteries when a lithium battery has thermal runaway, thus having a good safety protection effect;

[0018] 3. In the present invention, when the lithium battery has thermal runaway and generates high temperature, the high temperature triggers the fire extinguishing mechanism to start automatic fire extinguishing, with fast response and good targeted fire extinguishing; the air blast cooling mechanism is used to blow cold air into the outer box, and the cold air can be used to blow and dissipate heat to the inner box; the cold air can enter the partition through the first exhaust hole and finally be discharged from the second exhaust hole. In this process, the partition can be cooled, thereby indirectly cooling the lithium battery, and the effect is very good;

[0019] 4. In the present invention, the temperature sensor is used to detect the temperature in the unit battery storage cavity, and the threading hole is used for the wiring of the lithium battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A cross-sectional view of a safe battery box structure with rapid heat dissipation function proposed by the present invention;

[0021] Figure 2 This is a schematic structural diagram of an elastic buffer mechanism of a safe battery box structure with a rapid heat dissipation function proposed by the present invention;

[0022] Figure 3 This is a structural schematic diagram of a high temperature triggered fire extinguishing mechanism of a safe battery box structure with a rapid heat dissipation function proposed by the present invention;

[0023] Figure 4 This is a structural schematic diagram of an air blast cooling mechanism of a safe battery box structure with a rapid heat dissipation function proposed by the present invention;

[0024] Figure 5 A cross-sectional view of a partition of a safe battery box structure with a rapid heat dissipation function proposed by the present invention.

[0025] In the figure: 1 outer box, 2 base, 3 elastic buffer mechanism, 31 stud, 32 nut, 33 leaf spring bar, 34 slider, 35 first strip groove, 36 second strip groove, 4 support column, 5 inner box, 6 air blast cooling mechanism, 61 sleeve, 62 cylinder cover, 63 carbon dioxide storage tank, 64 first exhaust pipe, 65 regulating valve, 66 first solenoid valve, 67 blower, 68 second exhaust pipe, 69 second solenoid valve, 7 high temperature triggered fire extinguishing mechanism, 71 perfluorohexanone storage tank, 72 air guide pipe, 73 second connecting rod, 74 fixing plate, 75 thermal glass ball, 76 plug, 8 cover plate, 9 first connecting rod, 10 mounting plate, 11 first exhaust hole, 12 temperature sensor, 13 threading hole, 14 partition, 15 second exhaust hole. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Reference Figure 1 A safe battery box structure with a rapid heat dissipation function includes an outer box body 1. By setting the outer box body 1, the inner box body 5 can be protected, and the direct impact of the outside on the inner box body 5 is reduced, and the protection is good. The four corners of the bottom of the outer box body 1 are installed with a base 2 through an elastic buffer mechanism 3. The elastic buffer mechanism 3 is used to buffer the outer box body 1, so that the battery box can effectively avoid large impact vibrations during movement, and the buffering effect is good. The inner box body 5 is fixed to the inside of the outer box body 1 through a support column 4. A plurality of equidistantly arranged partitions 14 are fixed to the inside of the inner box body 5. The interior of the inner box body 5 is divided into a plurality of unit battery storage cavities by the partition 14. The lithium batteries are separated by the partition 14, which can avoid heat transfer between the lithium batteries and prevent the heat from being transferred to other lithium batteries when a lithium battery has thermal runaway. It has a good safety protection effect. A cover plate 8 is installed on the top of the outer box body 1. A mounting plate 10 is fixed to the bottom of the cover plate 8 through a first connecting rod 9. A high-temperature triggered fire extinguishing mechanism 7 is installed at the bottom of the mounting plate 10. The high-temperature triggered fire extinguishing mechanism 7 is located in the unit battery storage cavity. When the lithium battery has thermal runaway and generates high temperature, the high-temperature triggered fire extinguishing mechanism 7 can start automatic fire extinguishing, with fast response and good targeted fire extinguishing. An air blast cooling mechanism 6 is installed on the side of the outer box body 1. The air blast cooling mechanism 6 is used to blow cold air into the outer box body 1. The cold air can blow and dissipate heat to the inner box body 5. A temperature sensor 12 is installed on the inner wall of the unit battery storage cavity. The temperature sensor 12 is used to detect the temperature in the unit battery storage cavity. A threading hole 13 is opened on the side of the unit battery storage cavity. The threading hole 13 is used for wiring the lithium battery.

[0028] Reference Figure 2 The elastic buffer mechanism 3 includes a stud 31, a nut 32, a leaf spring bar 33, a slider 34, a first strip groove 35, and a second strip groove 36. The stud 31 is fixed to the bottom of the outer box body 1, and the stud 31 slides through the base 2. The nut 32 is threadedly sleeved on the stud 31. The top of the base 2 is provided with a second strip groove 36. Slide blocks 34 are fixed at both ends of the leaf spring bar 33. The slider 34 is slidably installed in the second strip groove 36. The bottom of the outer box body 1 is provided with a first strip groove 35, and the leaf spring bar 33 is located in the first strip groove 35. The first strip groove 35 and the second strip groove 36 are both provided with a plurality of them. The first strip groove 35 and the second strip groove 36 correspond to each other one by one. The base 2 is fixed to the equipment to be installed. When subjected to vibration, the leaf spring bar 33 will be compressed. At this time, the slider 34 slides in the second strip groove 36, thereby being buffered by the leaf spring bar 33.

[0029] Reference Figure 3The high temperature triggered fire extinguishing mechanism 7 comprises a perfluorohexanone storage tank 71, an air duct 72, a second connecting rod 73, a fixing plate 74, a thermosensitive glass ball 75, and a plug 76. The perfluorohexanone storage tank 71 is fixed to the bottom of the mounting plate 10, and the perfluorohexanone storage tank 71 is connected to the air duct 72. A fixing plate 74 is fixed to the air duct 72 through the second connecting rod 73. A thermosensitive glass ball 75 is fixed to the fixing plate 74. A plug 76 is fixed to one end of the thermosensitive glass ball 75. The plug 76 is sealed and sleeved on the port of the air duct 72. When the preset high temperature is reached, the thermosensitive glass ball 75 bursts, and the perfluorohexanone inside the perfluorohexanone storage tank 71 expands due to the heat, thereby pushing open the plug 76, and the gas enters the unit battery storage cavity, thereby extinguishing the lithium battery in the unit battery storage cavity, which has strong pertinence and fast fire extinguishing.

[0030] Reference Figure 4 The air blast cooling mechanism 6 includes a sleeve 61, a carbon dioxide storage tank 63, a first exhaust pipe 64, a regulating valve 65, and a first solenoid valve 66. The sleeve 61 is fixed on the outer box body 1. The interior of the sleeve 61 is sleeved with the carbon dioxide storage tank 63. The outlet of the carbon dioxide storage tank 63 is connected to the outer box body 1 through the first exhaust pipe 64. The pipe section of the first exhaust pipe 64 is equipped with a regulating valve 65 and a first solenoid valve 66. The air blast cooling mechanism 6 also includes a blower 67, a second exhaust pipe 68, and a second solenoid valve 69. The blower 67 is fixed through the outer box body 1. The outer box A second exhaust pipe 68 is connected between the outlet on the body 1 and the first exhaust pipe 64. A second solenoid valve 69 is installed on the pipe section of the second exhaust pipe 68. A cylinder cover 62 is hinged on the sleeve 61. The second solenoid valve 69 is opened, and air is blown into the outer box body 1 through the blower 67. The outer box body 1 is cooled by the circulation of air. When the temperature is too high, the first solenoid valve 66 is opened and the second solenoid valve 69 is closed. The carbon dioxide in the carbon dioxide storage tank 63 enters the outer box body 1 through the first exhaust pipe 64, thereby quickly cooling the outer box body 1.

[0031] Reference Figure 1 , Figure 5 The partition 14 is a hollow structure, a second exhaust hole 15 is opened on the top of the partition 14, a first exhaust hole 11 is opened on the bottom of the inner box 5, and the bottom of the partition 14 is connected with the outer box 1 through the first exhaust hole 11. Cold air can enter the partition 14 through the first exhaust hole 11 and finally be discharged from the second exhaust hole 15. In this process, the partition 14 can be cooled, thereby indirectly cooling the lithium battery, and the effect is very good.

[0032] Working principle: When in use, the outer box 1 is provided to protect the inner box 5, reduce the direct impact of the outside on the inner box 5, and have good protection; the elastic buffer mechanism 3 is used to buffer the outer box 1, so that the battery box can effectively avoid large impact vibrations during movement, and the buffering effect is good; the lithium batteries are separated by the partition 14, which can avoid heat transfer between the lithium batteries and prevent the heat from being transferred to other lithium batteries when one of the lithium batteries has thermal runaway, which has a good safety protection effect; when the lithium battery has thermal runaway and produces high When the temperature is high, the high temperature triggers the fire extinguishing mechanism 7 to start automatic fire extinguishing, with fast response and good targeted fire extinguishing; the air blowing and cooling mechanism 6 is used to blow cold air into the outer box body 1, and the cold air can dissipate heat to the inner box body 5; the cold air can enter the partition 14 through the first exhaust hole 11, and finally be discharged from the second exhaust hole 15. In this process, the partition 14 can be cooled, thereby indirectly cooling the lithium battery, with very good effect; the temperature sensor 12 is used to detect the temperature in the unit battery storage cavity, and the threading hole 13 is used for wiring the lithium battery.

[0033] The working principle of the elastic buffer mechanism 3 is as follows: the base 2 is fixed on the equipment to be installed, and when subjected to vibration, the leaf spring strip 33 is compressed, and at this time the slider 34 slides in the second strip groove 36 , thereby providing buffering through the leaf spring strip 33 .

[0034] The working principle of the high temperature triggered fire extinguishing mechanism 7 is: when the preset high temperature is reached, the thermosensitive glass ball 75 bursts, and the perfluorohexanone inside the perfluorohexanone storage tank 71 expands due to the heat, thereby pushing open the plug 76, and the gas enters the unit battery storage cavity, thereby extinguishing the lithium battery in the unit battery storage cavity, which is highly targeted and fast in extinguishing.

[0035] The operating principle of the air blowing and cooling mechanism 6 is: open the second solenoid valve 69, blow air into the outer box body 1 through the blower 67, and cool the outer box body 1 through the circulation of air. When the temperature is too high, open the first solenoid valve 66 and close the second solenoid valve 69, and the carbon dioxide in the carbon dioxide storage tank 63 enters the outer box body 1 through the first exhaust pipe 64, so that the outer box body 1 can be quickly cooled.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A safe battery box structure with rapid heat dissipation function, comprising an outer box body (1), characterized in that: The four bottom corners of the outer box (1) are all equipped with bases (2) through elastic buffer mechanisms (3), and the elastic buffer mechanisms (3) are used to buffer the outer box (1). The inner box (5) is fixed to the inner part of the outer box (1) through support columns (4), and a plurality of equally spaced partitions (14) are fixed to the inner part of the inner box (5). The inner part of the inner box (5) is divided into a plurality of unit battery storage chambers by the partitions (14). The top of the outer box (1) is equipped with a cover plate (8), and the bottom of the cover plate (8) is fixed with a mounting plate (10) through a first connecting rod (9). The bottom of the mounting plate (10) is equipped with a high-temperature triggered fire extinguishing mechanism (7), and the high-temperature triggered fire extinguishing mechanism (7) is located in the unit battery storage chamber. The side of the outer box (1) is equipped with an air blast cooling mechanism (6), and the air blast cooling mechanism (6) is used to blow cold air into the outer box (1).

2. A safe battery box structure with rapid heat dissipation function according to claim 1, characterized in that: The elastic buffer mechanism (3) comprises a stud (31), a nut (32), a leaf spring strip (33), a slider (34), a first strip groove (35), and a second strip groove (36); the stud (31) is fixed to the bottom of the outer box (1); the stud (31) slides through the base (2); a nut (32) is sleeved on the stud (31) through a thread; a second strip groove (36) is provided on the top of the base (2); sliders (34) are fixed at both ends of the leaf spring strip (33); the slider (34) is slidably installed in the second strip groove (36); a first strip groove (35) is provided at the bottom of the outer box (1); and the leaf spring strip (33) is located in the first strip groove (35).

3. A safe battery box structure with rapid heat dissipation function according to claim 2, characterized in that: A plurality of the first strip grooves (35) and the second strip grooves (36) are provided, and the first strip grooves (35) and the second strip grooves (36) correspond one to one.

4. The safe battery box structure with rapid heat dissipation function according to claim 1, characterized in that: A temperature sensor (12) is installed on the inner wall of the unit battery storage cavity.

5. The safe battery box structure with rapid heat dissipation function according to claim 1, characterized in that: A threading hole (13) is provided on the side of the unit battery storage cavity.

6. The safe battery box structure with rapid heat dissipation function according to claim 1, characterized in that: The high temperature triggered fire extinguishing mechanism (7) comprises a perfluorohexanone storage tank (71), an air duct (72), a second connecting rod (73), a fixing plate (74), a thermosensitive glass ball (75), and a plug (76); the perfluorohexanone storage tank (71) is fixed to the bottom of a mounting plate (10); the perfluorohexanone storage tank (71) is connected to the air duct (72); a fixing plate (74) is fixed to the air duct (72) via the second connecting rod (73); a thermosensitive glass ball (75) is fixed to the fixing plate (74); one end of the thermosensitive glass ball (75) is fixedly sleeved with a plug (76); the plug (76) is sealingly sleeved on a port of the air duct (72).

7. The safe battery box structure with rapid heat dissipation function according to claim 1, characterized in that: The air blast cooling mechanism (6) comprises a sleeve (61), a carbon dioxide storage tank (63), a first exhaust pipe (64), a regulating valve (65), and a first solenoid valve (66); the sleeve (61) is fixed on the outer box (1); the interior of the sleeve (61) is sleeved with the carbon dioxide storage tank (63); the outlet of the carbon dioxide storage tank (63) is connected to the outer box (1) via the first exhaust pipe (64); and the regulating valve (65) and the first solenoid valve (66) are installed on the pipe section of the first exhaust pipe (64).

8. The safe battery box structure with rapid heat dissipation function according to claim 7, characterized in that: The air blowing and cooling mechanism (6) further comprises a blower (67), a second exhaust pipe (68), and a second solenoid valve (69); the blower (67) is fixedly connected to the outer box (1); a second exhaust pipe (68) is connected between the outlet on the outer box (1) and the first exhaust pipe (64); and a second solenoid valve (69) is installed on the pipe section of the second exhaust pipe (68).

9. A safe battery box structure with rapid heat dissipation function according to claim 8, characterized in that: A sleeve cover (62) is hingedly connected to the sleeve (61).

10. A safe battery box structure with rapid heat dissipation function according to claim 9, characterized in that: The partition (14) is a hollow structure, a second exhaust hole (15) is provided at the top of the partition (14), a first exhaust hole (11) is provided at the bottom of the inner box (5), and the bottom of the partition (14) is connected to the outer box (1) through the first exhaust hole (11).

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