Thermal management device for new energy automobile battery

Abstract

The invention belongs to the technical field of new energy vehicles, and discloses a heat management device for a new energy vehicle battery, which comprises a mounting frame, a protective shell positioned on the inner wall of the mounting frame, a plurality of groups of support plates fixedly connected to the front and rear sides of the protective shell, and a plurality of groups of through grooves are formed in the front and rear sides of the bottom of the inner wall of the mounting frame. And gaps among the multiple sets of supporting plates are smaller than or equal to the width value of the through groove, the supporting plates are slidably installed on the inner wall of the installation frame, and three sets of torsion rod springs are installed on the upper side of the inner wall of the installation frame. Force unloading is conducted through the arc design of the left side of the bottom of the protective shell, meanwhile, the protective shell integrally ascends, a connecting plate is driven by a clamping column to move upwards, at the moment, due to the fact that the connecting plate is rotationally connected with a connecting column through a supporting column, a torsion rod spring can be driven by the connecting column to be twisted, and buffering force is provided; and excessive damage caused by lack of buffering when the protective shell encounters the protrusions is effectively avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of new energy vehicle technology, and specifically relates to a thermal management device for a new energy vehicle battery. Background Art

[0002] New energy vehicles refer to motor vehicles that use non-fuel power. At present, batteries are generally used to drive motors and drive vehicles. This design can effectively avoid the emissions generated by traditional fuel vehicles when they are driving, help reduce carbon emissions, and provide a positive driving force for environmental protection. At present, new energy vehicles generally use lithium batteries as battery packs, and lithium batteries have defects such as low chemical properties at low temperatures, low discharge efficiency, and easy short circuit and combustion at high temperatures. Therefore, the battery pack is generally equipped with a thermal management device to heat the battery at low temperatures (so that the battery can reach the optimal operating temperature) and provide heat dissipation for the battery when it is running. In the prior art, the thermal management device is integrated around the battery pack of the car, lacking sufficient protection for the battery pack. Once the car drives onto a bumpy road and the battery pack contacts protrusions on the ground, the battery pack will be damaged, and the damaged battery pack will generally burn rapidly. At this time, the thermal management device needs to have a function that can automatically detach the battery pack from the car when it burns at high temperatures to achieve the function of protecting the car body. Summary of the invention

[0003] The purpose of the present invention is to provide a thermal management device for a new energy vehicle battery to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a thermal management device for a new energy vehicle battery, comprising a mounting frame, wherein a plurality of groups of slots are provided on the front and rear sides of the bottom of the inner wall of the mounting frame, and a protective shell is provided on the inner wall of the mounting frame, and a plurality of groups of support plates are fixedly connected on the front and rear sides of the protective shell, and the gap between the plurality of support plates is less than or equal to the width of the slot, and the support plate is slidably installed on the inner wall of the mounting frame, and three groups of torsion bar springs are installed on the upper side of the inner wall of the mounting frame, and three groups of clamping columns are fixedly connected to the top of the protective shell, and the outer surface of the torsion bar spring is adapted to be plugged with a connecting column, and the outer surface of the connecting column is fixedly connected with a supporting column, and a connecting plate is rotatably installed on the outer surface of the support column, and the bottom of the connecting plate is adapted to be plugged with the clamping column and abuts against the top of the protective shell, and the left side of the inner wall of the mounting frame is fixedly connected with an abutting column, and air inlets are provided on the left and right sides of the protective shell in sequence. and an air outlet, the inner cavity of the protective shell is fixedly installed with a fixing frame, and a battery pack is fixedly installed with the fixing frame, a plurality of groups of heat conductors are glued on the top of the battery pack, the inner part of the heat conductor is fixedly sleeved with a heat-conducting column, a sleeve is fixedly installed on the top of the inner wall of the protective shell, the internal sealing sleeve of the sleeve is provided with a telescopic column and kerosene, the two ends of the kerosene are elastically connected to the sleeve and the telescopic column respectively, the inner cavity of the sleeve is filled with a placement groove located at one end of the inner side of the telescopic column, the heat-conducting column is adapted to be inserted into the sleeve, an opening and closing column is fixedly installed on the inner wall of the air inlet, an opening and closing plate is rotatably installed on the outer surface of the opening and closing column, the inner side of the opening and closing plate is fixedly connected to a connecting cylinder, an adapting column is movably sleeved on the inner wall of the connecting cylinder, one end of the adapting column is fixedly connected to the top of the inner wall of the protective shell, and a coil spring is movably sleeved on the outer surface of the adapting column, and the two ends of the coil spring are elastically connected to the connecting cylinder and the protective shell respectively.

[0005] As a preferred solution of the present invention, a limit plate is fixedly installed on the left side of the inner wall of the mounting frame, and the limit plate abuts against the left side of the support plate. A resistance block located on the right side of the inner wall of the groove is glued to the bottom of the support plate, and the resistance block is made of a rubber block. The cross-sectional shape of the resistance block is semicircular, and a heating plate is fixedly connected to the bottom of the battery pack.

[0006] As a preferred solution of the present invention, a plurality of placement grooves are provided on the right side of the connecting plate, and the clamping posts are adapted to be inserted into the placement grooves.

[0007] As a preferred solution of the present invention, the heat-conducting column and the heat conductor are both made of brass, and a plurality of groups of heat-dissipating fins are provided on the top of the heat conductor.

[0008] As a preferred solution of the present invention, the left side of the bottom of the protective shell is designed to be a semicircular arc, and the protective shell is made of stainless steel.

[0009] As a preferred solution of the present invention, the opening and closing plate is in a vertical state when closed and abuts against the inner wall of the air inlet, and the axis of the telescopic column is higher than the axis of the opening and closing column.

[0010] As a preferred solution of the present invention, the front and rear sides of the outer surface of the torsion bar spring are movably sleeved with rings, and the two groups of the rings are fixedly connected to the inner wall of the mounting frame. The top of the front ring is provided with a hole penetrating downward, and the front side of the top of the outer surface of the torsion bar spring is fixedly connected with a fixing column, and the fixing column penetrates the hole upward.

[0011] As a preferred solution of the present invention, one end of the connecting tube is fixedly plugged into the inner side surface of the opening and closing plate, and the adapting column can rotate on the inner wall of the connecting tube around the axis of the opening and closing column.

[0012] The beneficial effects of the present invention are as follows:

[0013] 1. Through re-improvement and optimization, the device is designed with a protective shell that directly wraps the outside of the battery pack to provide physical protection for the battery pack. At the same time, by installing multiple groups of support plates on the front and rear sides of the protective shell, the gap between the multiple groups of support plates is less than or equal to the width of the slot. By providing a torsion bar spring, a connecting column, a supporting column, a connecting plate and a clamping column, the protective shell is pushed upward when encountering a protrusion, providing buffering protection for the protective shell. When the protective shell encounters an obstacle, the arc design on the left side of the bottom of the protective shell is used to unload the force. At the same time, the protective shell rises as a whole and drives the connecting plate to move upward through the clamping column. At this time, since the connecting plate is rotatably connected through the supporting column and the connecting column, the torsion bar spring will be driven by the connecting column to be twisted, providing a buffering force, and effectively avoiding excessive damage to the protective shell caused by lack of buffering when encountering a protrusion.

[0014] 2. Then, the heat conductor and the heat conductive column are used to capture and sense the temperature of the battery pack, and the battery pack automatically expands through the placement slot. When the battery pack burns due to damage or other faults, its temperature begins to soar sharply, and the placement slot quickly expands to its maximum volume. At the same time, the telescopic column is pushed to the farthest left, and the telescopic column and the abutment column abut each other, driving the protective shell as a whole to move to the right relative to the mounting frame, so that the support plate is driven to a position overlapping with the slot. At this time, the protective shell that loses the support of the inner wall of the mounting frame begins to fall automatically and detaches from the inner wall of the mounting frame, that is, detaches from the vehicle body. Due to the outer wrapping design of the protective shell, the flame of the burning battery pack will not directly face upwards, thereby minimizing the impact on the vehicle body.

[0015] 3. When the vehicle is driving, the protective shell will tilt forward and move backward due to inertia when starting and braking. The support plate is limited and blocked along the forward direction of the vehicle by setting a limit plate. When the vehicle starts and the protective shell and the support plate move backward relatively, a resistance block is set to squeeze in the groove to provide buffering and blocking for the protective shell. During normal use, the position of the protective shell and the battery pack is stabilized. When the battery pack needs to be separated from the vehicle body, the resistance block of the flexible material can be completely squeezed and deformed by the thrust of the telescopic column. At this time, the support plate can move smoothly along the inner wall of the mounting frame and realize the function of automatically separating from the vehicle body, which effectively improves the reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front three-dimensional structural schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a front cutaway schematic diagram of the overall structure of the present invention;

[0018] Figure 3 For the present invention Figure 2 A magnified schematic diagram of the structure at center A;

[0019] Figure 4 It is a schematic diagram of the internal section of the mounting frame of the present invention;

[0020] Figure 5 This is a schematic diagram of the internal structure of the protective shell of the present invention;

[0021] Figure 6 It is a schematic diagram of the separation of the protective shell, the support plate, the resistance block, the torsion bar spring, the collar, the fixing column, the connecting column, the support column, the connecting plate, the clamping column and the fixing frame of the present invention;

[0022] Figure 7 It is a cross-sectional schematic diagram of the sleeve, telescopic column, heat-conducting column, heat conductor, connecting cylinder, adapting column and spring of the present invention;

[0023] Figure 8 It is a side cutaway schematic diagram of the overall structure of the present invention;

[0024] Fig. 9 It is a schematic diagram of the inner wall of the mounting frame of the present invention.

[0025] In the figure: 1. mounting frame; 2. slot; 3. limit plate; 4. stop column; 5. protective shell; 6. support plate; 7. resistance block; 8. torsion bar spring; 81. collar; 82. fixing column; 9. connecting column; 10. supporting column; 11. connecting plate; 12. clamping column; 13. air inlet; 14. fixing frame; 15. battery pack; 16. heating plate; 17. sleeve; 18. telescopic column; 19. heat conducting column; 20. heat conductor; 21. air outlet; 22. opening and closing column; 23. opening and closing plate; 24. connecting cylinder; 25. adapter column; 26. spiral spring; 27. kerosene; 28. placement slot. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figures 1 to 9As shown, an embodiment of the present invention provides a thermal management device for a new energy vehicle battery, including a mounting frame 1, wherein a plurality of groups of slots 2 are provided on both front and rear sides of the bottom of the inner wall of the mounting frame 1, and a protective shell 5 is located on the inner wall of the mounting frame 1, wherein a plurality of groups of support plates 6 are fixedly connected to both front and rear sides of the protective shell 5, wherein the gap between the plurality of groups of support plates 6 is less than or equal to the width of the slot 2, and the support plate 6 is slidably installed on the inner wall of the mounting frame 1, and three groups of torsion bar springs 8 are installed on the upper side of the inner wall of the mounting frame 1, and three groups of clamping columns 12 are fixedly connected to the top of the protective shell 5, and the outer surface of the torsion bar spring 8 is adapted to be plugged with a connecting column 9, and the outer surface of the connecting column 9 is fixedly connected with a supporting column 10, and a connecting plate 11 is rotatably installed on the outer surface of the supporting column 10, and the bottom of the connecting plate 11 is adapted to be plugged with the clamping column 12 and abuts against the top of the protective shell 5, and an abutting column 4 is fixedly connected to the left side of the inner wall of the mounting frame 1, and an air inlet 13 and an air outlet 21 are provided on the left and right sides of the protective shell 5 in turn, and a fixed The fixed frame 14 is fixed with a battery pack 15 through the fixed frame 14. A plurality of heat conductors 20 are glued to the top of the battery pack 15. A heat-conducting column 19 is fixedly sleeved inside the heat conductor 20. A sleeve 17 is fixedly installed on the top of the inner wall of the protective shell 5. A telescopic column 18 and kerosene 27 are provided in the inner sealing sleeve of the sleeve 17. The two ends of the kerosene 27 are elastically connected to the sleeve 17 and the telescopic column 18 respectively. The inner cavity of the sleeve 17 is filled with a placement groove 28 located at one end of the inner side of the telescopic column 18. The heat-conducting column 19 is fixedly sleeved inside the protective shell 5. 19 is adapted to be inserted into the sleeve 17, an opening and closing column 22 is fixedly installed on the inner wall of the air inlet 13, an opening and closing plate 23 is rotatably installed on the outer surface of the opening and closing column 22, the inner side of the opening and closing plate 23 is fixedly connected to the connecting tube 24, an adapting column 25 is movably sleeved on the inner wall of the connecting tube 24, one end of the adapting column 25 is fixedly connected to the top of the inner wall of the protective shell 5, and a coil spring 26 is movably sleeved on the outer surface of the adapting column 25, and the two ends of the coil spring 26 are elastically connected to the connecting tube 24 and the protective shell 5 respectively;

[0028] Through re-improvement and optimization, the present device is designed to have a protective shell 5 directly wrapped around the outside of the battery pack 15 to provide physical protection for the battery pack 15. At the same time, by installing multiple groups of support plates 6 on the front and rear sides of the protective shell 5, the gap between the multiple groups of support plates 6 is less than or equal to the width of the slot 2. By providing a torsion bar spring 8, a connecting column 9, a supporting column 10, a connecting plate 11 and a clamping column 12, the protective shell 5 is pushed upward when encountering a protrusion, providing buffering protection for the protective shell 5. When the protective shell 5 encounters an obstacle, the arc design on the left side of the bottom of the protective shell 5 is used to unload the force. At the same time, the protective shell 5 rises as a whole and drives the connecting plate 11 to move upward through the clamping column 12. At this time, since the connecting plate 11 is rotatably connected through the support column 10 and the connecting column 9, the torsion bar spring 8 will be driven by the connecting column 9 to be twisted, providing a buffering force, and effectively avoiding excessive damage to the protective shell 5 caused by lack of buffering when encountering a protrusion.

[0029] Then, the heat conductor 20 and the heat conductive column 19 are used to capture and sense the temperature of the battery pack 15, and automatically expand through the placement slot 28. When the battery pack 15 burns due to damage or other faults, its temperature begins to soar sharply, and the placement slot 28 expands rapidly to its maximum volume. At the same time, the telescopic column 18 is pushed to the farthest left, and the telescopic column 18 abuts against the abutment column 4, driving the protective shell 5 as a whole to move to the right relative to the mounting frame 1, so that the support plate 6 is driven to a position overlapping with the slot 2. At this time, the protective shell 5 that loses the support of the inner wall of the mounting frame 1 begins to fall automatically and detaches from the inner wall of the mounting frame 1, that is, detaches from the vehicle body, and due to the outer wrapping design of the protective shell 5, the flame of the burning battery pack 15 will not directly face upwards, thereby minimizing the impact on the vehicle body.

[0030] Among them, a limit plate 3 is fixedly installed on the left side of the inner wall of the mounting frame 1, and the limit plate 3 abuts against the left side of the support plate 6. A resistance block 7 located on the right side of the inner wall of the slot 2 is glued to the bottom of the support plate 6. The resistance block 7 is made of a rubber block, and the cross-sectional shape of the resistance block 7 is semicircular. A heating plate 16 is fixedly connected to the bottom of the battery pack 15;

[0031] When the vehicle is driving, the protective shell 5 will tilt forward and move backward due to inertia when starting and braking. The support plate 6 is limited and blocked along the forward direction of the vehicle by setting a limit plate 3. When the vehicle starts and the protective shell 5 and the support plate 6 move backward relatively, a resistance block 7 is provided to squeeze in the groove 2 to provide buffering and blocking for the protective shell 5. During normal use, the positions of the protective shell 5 and the battery pack 15 are stabilized. When the battery pack 15 needs to be separated from the vehicle body, the resistance block 7 of the flexible material can be completely squeezed and deformed by the thrust of the telescopic column 18. At this time, the support plate 6 can move smoothly along the inner wall of the mounting frame 1 and realize the function of automatically separating from the vehicle body, thereby effectively improving the reliability of the device.

[0032] The right side of the connecting plate 11 is provided with a plurality of placement slots 28, and the clamping posts 12 are adapted to be inserted into the placement slots 28;

[0033] The placement groove 28 is used to insert the placement column 12, so that the connecting plate 11 can be tightly connected with the protective shell 5 under the action of the torsion bar spring 8. When the protective shell 5 is separated from the inner wall of the mounting frame 1, the right opening of the placement groove 28 will not hinder the protective shell 5.

[0034] The heat conducting column 19 and the heat conductor 20 are both made of brass, and a plurality of heat dissipation fins are provided on the top of the heat conductor 20;

[0035] The heat-conducting column 19 and the heat conductor 20 are heat-conducting components. After the air inlet 13 is opened, the vehicle travels in the air inlet 13 to form an impact wind, which takes away the heat absorbed by the heat-conducting column 19 and the heat conductor 20. The heat conductor 20 is connected to the battery pack 15 through heat-dissipating silicone.

[0036] The left side of the bottom of the protective shell 5 is designed to be semicircular and arched, and the protective shell 5 is made of stainless steel;

[0037] The semicircular arch design on the left side of the bottom of the protective shell 5 helps to unload the force when the protrusion contacts, and at the same time pushes the protective shell 5 to move upward, and cooperates with the torsion bar spring 8 to realize the buffer protection function of the protective shell 5.

[0038] The opening and closing plate 23 is in a vertical state when closed and abuts against the inner wall of the air inlet 13, and the axis of the telescopic column 18 is higher than the axis of the opening and closing column 22;

[0039] The opening and closing plate 23 is tightly fitted to the air inlet 13 by the elastic force of the adapter column 25. When the battery pack 15 needs to be heated and maintained at an optimal working temperature, closing the opening and closing plate 23 helps to maintain heat.

[0040] The front and rear sides of the outer surface of the torsion bar spring 8 are movably sleeved with collars 81, and the two sets of collars 81 are fixedly connected to the inner wall of the mounting frame 1. A hole penetrating downward is opened at the top of the front collar 81, and a fixing column 82 is fixedly connected to the front side of the top of the outer surface of the torsion bar spring 8, and the fixing column 82 penetrates the hole upward;

[0041] The torsion bar spring 8 is fixedly connected to the collar 81 at the front side through the fixing column 82. When the protective shell 5 is driven to rotate through the connecting plate 11, the supporting column 10 and the connecting column 9, the torsion bar spring 8 is twisted and provides buffering.

[0042] One end of the connecting tube 24 is fixedly plugged into the inner side of the opening and closing plate 23, and the adapting column 25 can rotate around the axis of the opening and closing column 22 on the inner wall of the connecting tube 24;

[0043] The connecting tube 24 is driven by the opening and closing plate 23 and rotates around the axis of the opening and closing column 22 , so that the adapting column 25 and the connecting tube 24 are adapted and plugged into each other.

[0044] Working principle:

[0045] The device is installed on the bottom of the vehicle body through the limit plate 3, wherein the limit plate 3 is fixedly installed on the bottom of the vehicle body through bolts and other fixing parts. At this time, the support plate 6 and the slot 2 are interlaced with each other, and the protective shell 5 is slidably installed on the bottom of the inner wall of the mounting frame 1 by using the support plate 6;

[0046] When the temperature of the battery pack 15 is too low, the battery pack 15 can be heated by the heating plate 16 to make the battery pack 15 reach the optimal working temperature, and then the operation of the heating plate 16 is stopped. After the vehicle is running, when the battery pack 15 is in high-load operation and generates a large amount of heat, the heat conductor 20 contacts the top of the battery pack 15 and absorbs the heat of the battery pack 15, and transfers the heat to the placement groove 28 in the inner cavity of the sleeve 17 through the heat-conducting column 19, so that the placement groove 28 expands due to heat, and continuously pushes the telescopic column 18 to the left, compressing the kerosene 27, and the telescopic column 18 pushes the inner side of the opening and closing plate 23 to the left. The top of the opening and closing plate 23 rotates counterclockwise around the axis of the opening and closing column 22, opening the air inlet 13, allowing the air inlet 13 to receive the wind generated by the vehicle, and the high-speed airflow enters the inner cavity of the protective shell 5 through the air inlet 13, and is discharged along the air outlet 21 after taking away the heat. The higher the temperature of the battery pack 15, the larger the opening of the opening and closing plate 23, so that high-intensity heat dissipation work is automatically performed. When the opening and closing plate 23 rotates, it will drive the connecting cylinder 24 to rotate synchronously and compress the adapter column 25 at the same time. After the battery pack 15 and the placement slot 28 recover their temperatures, the elastic force of the adapter column 25 is used to drive the opening and closing plate 23 to reset;

[0047] Then, when the bottom of the vehicle encounters a protrusion, the arc portion on the left side of the protective shell 5 provides a buffer and drives the protective shell 5 to move upward as a whole. The protective shell 5 drives the clamping column 12, the connecting plate 11, and the supporting column 10 to move upward. At this time, the connecting plate 11 begins to twist the torsion bar spring 8 through the supporting column 10 and the connecting column 9, causing the torsion bar spring 8 to twist around its own axis. Subsequently, the protective shell 5 and the torsion bar spring 8 are reset.

[0048] Finally, when the battery pack 15 catches fire, its temperature will soar sharply. At this time, the telescopic column 18 will move to the farthest left under the action of the placement slot 28. At this time, the left end of the placement slot 28 begins to push the column 4 to the left. Since the column 4 is fixed, the telescopic column 18 will drive the protective shell 5 to move to the right as a whole relative to the mounting frame 1. The protective shell 5 drives the support plate 6 to start moving to the position where the slot 2 overlaps, and then automatically falls along the overlapping position and detaches from the mounting frame 1, that is, detaches from the vehicle body.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermal management device for a new energy vehicle battery, comprising a mounting frame (1), wherein the mounting frame (1) has a plurality of grooves (2) on both the front and rear sides of the bottom of the inner wall, characterized in that: It also includes a protective shell (5) located on the inner wall of the mounting frame (1), and a plurality of groups of support plates (6) are fixedly connected to the front and rear sides of the protective shell (5), and the gaps between the plurality of groups of support plates (6) are less than or equal to the width of the slot (2). The support plates (6) are slidably mounted on the inner wall of the mounting frame (1), and three groups of torsion bar springs (8) are installed on the upper side of the inner wall of the mounting frame (1). The top of the protective shell (5) is fixedly connected to three groups of clamping columns (12), and the outer surface of the torsion bar spring (8) is adapted to be plugged with a connecting column (9), and the outer surface of the connecting column (9) is fixedly The protective shell (5) is fixedly connected to a support column (10), and a connecting plate (11) is rotatably mounted on the outer surface of the support column (10). The bottom of the connecting plate (11) is adapted to be plugged with a clamping column (12) and abuts against the top of the protective shell (5). The left side of the inner wall of the mounting frame (1) is fixedly connected to an abutting column (4). The left and right sides of the protective shell (5) are respectively provided with an air inlet (13) and an air outlet (21). The inner cavity of the protective shell (5) is fixedly mounted with a fixing frame (14), and a battery pack (15) is fixedly mounted via the fixing frame (14). The battery pack (15) A plurality of heat conductors (20) are glued to the top of the protective shell (15), a heat conducting column (19) is fixedly sleeved inside the heat conductor (20), a sleeve (17) is fixedly installed on the top of the inner wall of the protective shell (5), a telescopic column (18) and kerosene (27) are provided in the inner sealing sleeve of the sleeve (17), the two ends of the kerosene (27) are elastically connected to the sleeve (17) and the telescopic column (18), the inner cavity of the sleeve (17) is filled with a placement groove (28) located at one end of the inner side of the telescopic column (18), and the heat conducting column (19) is adapted to be plugged into the sleeve (17), An opening and closing column (22) is fixedly mounted on the inner wall of the air inlet (13); an opening and closing plate (23) is rotatably mounted on the outer surface of the opening and closing column (22); the inner side of the opening and closing plate (23) is fixedly connected to a connecting tube (24); an adapting column (25) is movably sleeved on the inner wall of the connecting tube (24); one end of the adapting column (25) is fixedly connected to the top of the inner wall of the protective shell (5); a coil spring (26) is movably sleeved on the outer surface of the adapting column (25); and the two ends of the coil spring (26) are elastically connected to the connecting tube (24) and the protective shell (5), respectively.

2. A thermal management device for a new energy vehicle battery according to claim 1, characterized in that: A limit plate (3) is fixedly installed on the left side of the inner wall of the mounting frame (1), and the limit plate (3) abuts against the left side of the support plate (6). A resistance block (7) located on the right side of the inner wall of the slot (2) is glued to the bottom of the support plate (6), and the resistance block (7) is made of a rubber block. The cross-sectional shape of the resistance block (7) is semicircular. A heating plate (16) is fixedly connected to the bottom of the battery pack (15).

3. A thermal management device for a new energy vehicle battery according to claim 2, characterized in that: The right side of the connecting plate (11) is provided with a plurality of placement grooves (28), and the clamping columns (12) are adapted to be inserted into the placement grooves (28).

4. A thermal management device for a new energy vehicle battery according to claim 3, characterized in that: The heat-conducting column (19) and the heat conductor (20) are both made of brass, and a plurality of groups of heat-dissipating fins are also provided on the top of the heat conductor (20).

5. A thermal management device for a new energy vehicle battery according to claim 4, characterized in that: The left side of the bottom of the protective shell (5) is designed to be semicircularly arched, and the protective shell (5) is made of stainless steel.

6. A thermal management device for a new energy vehicle battery according to claim 5, characterized in that: The opening and closing plate (23) is in a vertical state when closed and abuts against the inner wall of the air inlet (13); the axis of the telescopic column (18) is higher than the axis of the opening and closing column (22).

7. A thermal management device for a new energy vehicle battery according to claim 6, characterized in that: The front and rear sides of the outer surface of the torsion bar spring (8) are both movably sleeved with collars (81), and the two groups of collars (81) are fixedly connected to the inner wall of the mounting frame (1). A hole penetrating downward is provided at the top of the collar (81) on the front side, and a fixing column (82) is fixedly connected to the front side of the top of the outer surface of the torsion bar spring (8), and the fixing column (82) penetrates the hole upward.

8. A thermal management device for a new energy vehicle battery according to claim 7, characterized in that: One end of the connecting tube (24) is fixedly plugged into the inner side surface of the opening and closing plate (23), and the adapting column (25) can rotate on the inner wall of the connecting tube (24) around the axis of the opening and closing column (22).

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