Electric vehicle storage battery protection device with cooling function

Abstract

The electric vehicle storage battery protection device with the cooling function comprises an outer shell, an inner shell and a storage battery body, a placing cover is rotationally connected to the outer wall of the top of the inner shell through a hinge, a plurality of exhaust holes are formed in the outer wall of the top of the placing cover, and a placing groove is formed in the outer wall of the top of the inner shell; a fan shell is arranged in the containing groove, a water storage groove is formed in the shell, a water inlet pipe is arranged on the outer wall of the top of the shell, and a heat dissipation metal fin plate is arranged on the outer wall of the bottom of the shell. Cooling liquid enters the water storage tank through the water inlet pipe and penetrates through the water through hole in the supporting shell, the function that the cooling liquid cools the heating storage battery is achieved, the phenomenon that the temperature of the storage battery rises due to high-temperature exposure is avoided, the fan shell enables cold air to enter the inner shell where the storage battery is located, the cold air makes contact with the heating storage battery, and the storage battery is heated. The temperature of the storage battery is exchanged and exhausted through the exhaust hole, and the heat-conducting circular plate makes contact with the heating storage battery.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle batteries, in particular to an electric vehicle battery protection device with a cooling function. Background Art

[0002] Electric vehicle batteries are the power source of electric vehicles. Most electric vehicles are equipped with lead-acid batteries, which are low in cost and cost-effective. Because this type of battery can be recharged, it can be used repeatedly.

[0003] For example, a new energy electric battery safety protection device with authorization announcement number CN214451521U and announcement date 2021.10.22 relates to the technical field of safety protection devices, including a protection box and a battery, a first spring rod is fixedly connected to the side of the protection box, a first buffer plate is fixedly connected to the left end of the first spring rod, a transmission rod is fixedly connected to the side of the first buffer plate, and the side of the transmission rod is slidably connected to the protection box.

[0004] The battery of an existing electric vehicle will generate heat during long-term use, causing the battery temperature to rise. When the battery is placed outside and exposed to the sun, the battery temperature will also rise. The existing battery protection device has a general heat dissipation effect and cannot achieve a good heat dissipation effect, resulting in battery damage. Therefore, it is urgent to design an electric vehicle battery protection device with a cooling function to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an electric vehicle battery protection device with a cooling function.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A battery protection device for an electric vehicle with a cooling function comprises an outer shell, an inner shell and a battery body, wherein a placement cover is rotatably connected to the outer wall of the top of the inner shell by a hinge, and a plurality of exhaust holes are provided on the outer wall of the top of the placement cover, a placement groove is provided on the outer wall of the top of the inner shell, and a fan housing is provided inside the placement groove, a water storage tank is provided inside the outer shell, and a water inlet pipe is provided on the outer wall of the top of the outer shell, a heat dissipation metal fin plate is provided on the outer wall of the bottom of the outer shell, the inner wall of the outer shell and the outer wall of the inner shell are connected to a supporting shell, and a heat dissipation column is inserted into the inside of the supporting shell, both ends of the heat dissipation column are provided with heat conducting circular plates, and the outer wall of the top of the heat conducting circular plate contacts the outer wall of the bottom of the battery body, the outer wall of the heat dissipation column is sleeved with sealing rubber, and the outer wall of the sealing rubber is connected to the outer wall of the inner shell, and a water through hole is provided on the outer wall of the supporting shell.

[0008] Furthermore, a support frame is provided on the inner wall of the fan housing, and a fan motor is fixed to the outer wall of one side of the support frame by bolts, and fan blades are provided at the output end of the fan motor.

[0009] Furthermore, a slot is provided on the outer wall at the top of the inner shell, and a circular fixing plate is slidably connected inside the slot, and a protective net is provided on the inner wall of the inner shell.

[0010] Furthermore, the inner wall of the slot and the outer wall of one side of the circular fixing plate are connected to a limiting spring, and a fixing cylinder is provided on the inner wall of the circular fixing plate, and the outer wall of one side of the placement cover is connected to one end of the fixing cylinder with a limiting spring.

[0011] Furthermore, a fixing groove is formed on the inner wall of the inner shell, and a limiting rod is slidably connected inside the fixing groove, and a fixing spring is connected to one end of the limiting rod and the inner wall of the fixing groove.

[0012] Furthermore, the interior of the inner shell is connected to the outer wall of the battery body, and a fixing frame is provided on the outer wall of the battery body, a limiting groove is provided on the inner wall of the fixing groove, and a limiting plate is slidably connected to the interior of the limiting groove, and one end of the limiting plate is connected to the inner wall of the limiting groove with a return spring.

[0013] Furthermore, a handrail is arranged on the outer wall of the top of the placement cover, and a sealing cover plate is arranged on the inner wall of the placement groove.

[0014] The beneficial effects of the utility model are:

[0015] 1. Through the fan casing, exhaust hole, water inlet pipe, water storage tank, support shell, water through hole, heat dissipation column and heat-conducting circular plate, the coolant enters the water storage tank through the water inlet pipe, and the coolant passes through the water through hole in the support shell, thereby realizing the function of cooling the heated battery by the coolant, avoiding the temperature rise of the battery due to high temperature exposure. The fan casing allows cold air to enter the inner shell where the battery is located, and the cold air contacts the heated battery, exchanges the temperature of the battery and is discharged through the exhaust hole. The heat-conducting circular plate contacts the heated battery, and the heat of the heated battery is transferred to the outside through the heat dissipation column, thereby realizing the function of air-cooling the battery, avoiding the problem of battery temperature rise due to long-term use of the battery, solving the problem that the protection device cannot cool the battery when the temperature rises, and realizing the function of protecting the battery well.

[0016] 2. Through the placement groove, sealing cover plate, card slot, limit spring, circular fixing plate, fixed cylinder, placement cover and handrail, the sealing cover plate is pulled and the sealing cover plate is separated from the placement groove, so that the fan casing can be taken out; the handrail is pulled and the handrail drives the sealing cover plate to rotate, and the sealing cover plate drives the fixed cylinder to move, the fixed cylinder is separated from the circular fixing plate, and the circular fixing plate is separated from the limit spring, so that the battery can be taken out, thereby realizing the function of modular management of the fan casing and the battery body, making it convenient for the staff to replace damaged components.

[0017] 3. Through the setting of the fixing frame, fixing groove, fixing spring, limit rod, limit groove, limit plate, return spring and battery body, the fixing frame clamps the battery body, the fixing frame and the battery body are placed in the inner shell, the fixing frame squeezes the limit rod, the limit rod slides in the fixing groove, the limit rod squeezes the fixing spring, the fixing spring provides elastic force, so that the limit rod is clamped in the groove of the fixing frame, the return spring provides elastic force, the limit plate squeezes the limit rod, so that the limit rod is fixed, the function of fixing the battery body is realized, and the problem of the battery body colliding with the inner wall of the inner shell when the battery vehicle moves is avoided, and the battery body is avoided from being damaged by collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural schematic diagram of an electric vehicle battery protection device with a cooling function proposed by the utility model;

[0019] Figure 2 This is a front view cross-sectional structural schematic diagram of an electric vehicle battery protection device with a cooling function proposed by the utility model;

[0020] Figure 3 This is a schematic cross-sectional structure diagram of a circular fixing plate of an electric vehicle battery protection device with a cooling function proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of a side cross-sectional structure of an electric vehicle battery protection device with a cooling function proposed by the utility model;

[0022] Figure 5 This is a schematic diagram of the enlarged structure of a limit plate of an electric vehicle battery protection device with a cooling function proposed by the utility model.

[0023] In the figure: 1. outer shell; 2. placement cover; 3. placement slot; 4. fan housing; 5. support frame; 6. fan motor; 7. fan blades; 8. exhaust hole; 9. inner shell; 10. water storage tank; 11. support shell; 12. heat dissipation column; 13. heat conductive circular plate; 14. water hole; 15. battery body; 16. slot; 17. circular fixing plate; 18. fixing cylinder; 19. water inlet pipe; 20. handrail; 21. fixing slot; 22. fixing spring; 23. limit rod; 24. fixing frame; 25. sealing cover plate; 26. limit spring; 27. protective net; 28. heat dissipation metal fin plate; 29. ​​limit slot; 30. limit plate; 31. return spring; 32. sealing rubber. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] Reference Figure 1-5A battery protection device for electric vehicles with a cooling function comprises an outer shell 1, an inner shell 9 and a battery body 15, a placement cover 2 is rotatably connected to the outer wall of the top of the inner shell 9 through a hinge, and a plurality of exhaust holes 8 are provided on the outer wall of the top of the placement cover 2, a placement groove 3 is provided on the outer wall of the top of the inner shell 9, and a fan housing 4 is provided inside the placement groove 3, a water storage tank 10 is provided inside the outer shell 1, and a water inlet pipe 19 is provided on the outer wall of the top of the outer shell 1, a heat dissipation metal fin plate 28 is provided on the outer wall of the bottom of the outer shell 1, the inner wall of the outer shell 1 and the outer wall of the inner shell 9 are connected to a support shell 11, and the support shell 11 A heat dissipation column 12 is inserted into the interior, and heat-conducting circular plates 13 are provided at both ends of the heat dissipation column 12, and the outer wall of the top of the heat-conducting circular plate 13 contacts the outer wall of the bottom of the battery body 15, and the outer wall of the heat dissipation column 12 is sleeved with a sealing rubber 32, and the outer wall of the sealing rubber 32 is connected to the outer wall of the inner shell 9. A water hole 14 is opened on the outer wall of the support shell 11, and the cooling water enters the support shell 11 through the water hole 14. The heated cooling water passes through the heat dissipation metal fin plate 28 to transfer heat to the outside, so that the cooling water can be recycled. The cooling water contacts the heat dissipation column 12, so that the battery can be further cooled.

[0028] In one embodiment provided by the present utility model, Figure 2 As shown, a support frame 5 is provided on the inner wall of the fan housing 4, and a fan motor 6 is fixed to the outer wall on one side of the support frame 5 by bolts. A fan blade 7 is provided at the output end of the fan motor 6. The fan motor 6 drives the fan blade 7 to rotate, and the fan blade 7 drives the gas into the inner housing 9, so that the cooling gas directly contacts the battery, thereby realizing the function of cooling the battery.

[0029] In another embodiment provided by the present utility model, Figure 2 As shown, a card slot 16 is provided on the outer wall at the top of the inner shell 9, and a circular fixing plate 17 is slidably connected inside the card slot 16. A protective net 27 is provided on the inner wall of the inner shell 9. The protective net 27 inside the inner shell 9 prevents small particles of impurities from rotating and colliding with the battery when the fan blades 7 rotate.

[0030] In another embodiment provided by the present utility model, Figure 2 and Figure 3 As shown, the inner wall of the slot 16 and the outer wall on one side of the circular fixing plate 17 are connected to a limiting spring 26, and a fixing cylinder 18 is provided on the inner wall of the circular fixing plate 17, and the outer wall on one side of the placement cover 2 is connected to one end of the fixing cylinder 18 with a limiting spring 26, and the fixing cylinder 18 is clamped between the circular fixing plates 17, and the limiting spring 26 provides elastic force, so that the circular fixing plate 17 can fix the fixing cylinder 18.

[0031] In one embodiment provided by the present utility model, Figure 4As shown, a fixing groove 21 is provided on the inner wall of the inner shell 9, and a limiting rod 23 is slidably connected inside the fixing groove 21. One end of the limiting rod 23 is connected to the inner wall of the fixing groove 21 with a fixing spring 22. The limiting rod 23 moves in the fixing groove 21, and the limiting rod 23 squeezes the fixing spring 22. The fixing spring 22 provides elastic force, so that the limiting rod 23 is clamped in the groove on the fixing frame 24, thereby realizing the function of fixing the battery body 15 and avoiding damage caused by movement and collision of the battery body 15 in the inner shell 9 when the battery vehicle moves.

[0032] In another embodiment provided by the present utility model, Figure 4 and Figure 5 As shown, the interior of the inner shell 9 is connected to the outer wall of the battery body 15, and a fixing frame 24 is provided on the outer wall of the battery body 15, a limiting groove 29 is provided on the inner wall of the fixing groove 21, and a limiting plate 30 is slidably connected to the interior of the limiting groove 29, and a return spring 31 is connected to one end of the limiting plate 30 and the inner wall of the limiting groove 29, and the fixing frame 24 is installed on the outer wall of the battery body 15, so that the battery body 15 can be fixed in the inner shell 9.

[0033] In another embodiment provided by the present utility model, Figure 1 and Figure 2 As shown, a handrail 20 is provided on the outer wall of the top of the placement cover 2, and a sealing cover plate 25 is provided on the inner wall of the placement groove 3. The handrail 20 pulls the sealing cover plate 25 to rotate, which facilitates the staff to rotate the sealing cover plate 25.

[0034] Working principle: When in use, pull the handrail 20, the handrail 20 drives the placement cover 2 to rotate, fix the fixing frame 24 on the outer wall of the battery body 15, place the battery body 15 and the fixing frame 24 in the inner shell 9, the fixing frame 24 squeezes the limit rod 23, the limit rod 23 moves in the fixing groove 21, the limit rod 23 squeezes the fixing spring 22, the fixing spring 22 provides elastic force, the limit rod 23 is clamped in the groove on the fixing frame 24, the return spring 31 provides elastic force, the limit plate 30 moves in the limit groove 29, the limit plate 3 0 squeeze the limit rod 23 to achieve the function of fixing the battery body 15, avoiding the battery body 15 from being damaged in the inner shell 9 when the battery car moves, pull out the sealing cover plate 25, the sealing cover plate 25 is separated from the placement groove 3, and the fan housing 4 is installed in the placement groove 3. The placement cover 2 drives the fixed cylinder 18 to rotate, and the fixed cylinder 18 is clamped between the circular fixing plates 17. The limit spring 26 provides elastic force, so that the circular fixing plate 17 firmly clamps the fixed cylinder 18, and the fan housing 4 and the battery body 15 are fixed. The modular management function facilitates the staff to replace damaged components. The fan motor 6 in the fan housing 4 is started, and the fan motor 6 drives the fan blades 7 to rotate. The fan blades 7 enter the inner shell 9 through the exhaust holes 8 of the fan motor 6. The cold air contacts the battery body 15 through the protective net 27. The cold air exchanges heat with the heated battery body 15 and is discharged through the exhaust holes 8 at the battery body 15. One of the heat-conducting circular plates 13 contacts the heated battery. The heat is transferred through the heat dissipation column 12, and the heat-conducting circular plate 13 transfers the heat to the outside, thereby realizing the function of cooling the battery body 15. The coolant enters the water storage tank 10 through the water inlet pipe 19, and the cooling water passes through the water holes 14 in the support shell 11, thereby avoiding the battery damage caused by the increase in battery temperature during high temperature exposure, thereby realizing the function of protecting the battery of the battery vehicle. When the coolant cools the battery, the temperature of the coolant rises, and the coolant contacts the heat dissipation metal fin plate 28. The heat dissipation metal fin plate 28 absorbs and transfers the temperature of the coolant to the outside, so that the coolant can be recycled.

[0035] 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 within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A battery protection device for an electric vehicle with a cooling function, comprising an outer shell (1), an inner shell (9) and a battery body (15), characterized in that: A placement cover (2) is rotatably connected to the outer wall of the top of the inner shell (9) through a hinge, and a plurality of exhaust holes (8) are provided on the outer wall of the top of the placement cover (2). A placement groove (3) is provided on the outer wall of the top of the inner shell (9), and a fan housing (4) is provided inside the placement groove (3). A water storage tank (10) is provided inside the outer shell (1), and a water inlet pipe (19) is provided on the outer wall of the top of the outer shell (1). A heat dissipation metal fin plate (28) is provided on the outer wall of the bottom of the outer shell (1). ) is connected to the outer wall of the inner shell (9) with a support shell (11), and a heat dissipation column (12) is inserted into the interior of the support shell (11), and heat conduction circular plates (13) are provided at both ends of the heat dissipation column (12), and the outer wall of the top of the heat conduction circular plate (13) is in contact with the outer wall of the bottom of the battery body (15), the outer wall of the heat dissipation column (12) is sleeved with a sealing rubber (32), and the outer wall of the sealing rubber (32) is connected to the outer wall of the inner shell (9), and a water through hole (14) is opened on the outer wall of the support shell (11).

2. The electric vehicle battery protection device with cooling function according to claim 1, characterized in that: A support frame (5) is provided on the inner wall of the fan housing (4), and a fan motor (6) is fixed to the outer wall of one side of the support frame (5) by means of bolts, and a fan blade (7) is provided at the output end of the fan motor (6).

3. The electric vehicle battery protection device with cooling function according to claim 2, characterized in that: A slot (16) is provided on the outer wall at the top of the inner shell (9), and a circular fixing plate (17) is slidably connected inside the slot (16), and a protective net (27) is provided on the inner wall of the inner shell (9).

4. The electric vehicle battery protection device with cooling function according to claim 3 is characterized in that: The inner wall of the clamping groove (16) and the outer wall of one side of the circular fixing plate (17) are connected to a limit spring (26), and a fixed cylinder (18) is arranged on the inner wall of the circular fixing plate (17), and the outer wall of one side of the placement cover (2) and one end of the fixed cylinder (18) are connected to the limit spring (26).

5. The electric vehicle battery protection device with cooling function according to claim 4, characterized in that: The inner wall of the inner shell (9) is provided with a fixing groove (21), and a limiting rod (23) is slidably connected inside the fixing groove (21), and one end of the limiting rod (23) is connected to the inner wall of the fixing groove (21) by a fixing spring (22).

6. The electric vehicle battery protection device with cooling function according to claim 5, characterized in that: The interior of the inner shell (9) is connected to the outer wall of the battery body (15), and a fixing frame (24) is arranged on the outer wall of the battery body (15). A limiting groove (29) is provided on the inner wall of the fixing groove (21), and a limiting plate (30) is slidably connected to the interior of the limiting groove (29), and a return spring (31) is connected to one end of the limiting plate (30) and the inner wall of the limiting groove (29).

7. The electric vehicle battery protection device with cooling function according to claim 6, characterized in that: A handrail (20) is provided on the outer wall of the top of the placement cover (2), and a sealing cover plate (25) is provided on the inner wall of the placement groove (3).

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