A new energy vehicle battery maintenance device

Abstract

The present invention belongs to the technical field of battery maintenance, and discloses a new energy vehicle battery maintenance device, including a base, the upper surface of the base is provided with installation grooves at equal intervals, the front and rear sides of the bottom of the installation groove are symmetrically provided with card slots, the upper surface of the base is fixedly provided with a installation shell, the upper surface of the installation shell is provided with a plurality of guide grooves at equal intervals, the sides of the guide grooves are symmetrically provided with side grooves, and the middle of the front and rear side grooves are fixedly sleeved with electric heating plates. The mercury inside the telescopic sleeve is heated and expanded, so that the expanded mercury inside the telescopic sleeve pushes the telescopic end of the telescopic sleeve to move upward, and the telescopic end of the telescopic sleeve drives the heat-conducting plate to move upward and contact the heat dissipation plate through the electric plate. At this time, the heat dissipation plate dissipates heat to the battery through the sleeve column and the heat-conducting plate, thereby solving the problem of low charging and discharging efficiency and shortened life of the battery when the battery works in a high or low temperature environment.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery maintenance, and in particular relates to a battery maintenance device for a new energy vehicle. Background Art

[0002] Electric vehicles are cars that are powered by onboard power and use electric motors to drive the wheels. They are environmentally friendly, quiet, and can significantly reduce greenhouse gas emissions. They are gradually becoming the mainstream choice for future transportation, leading the automotive industry to transform towards low-carbon, smart travel.

[0003] The performance and safety of electric vehicle batteries are deeply affected by operating temperature, and performance under extreme temperature conditions has become a key technical challenge. Under high temperature conditions, the chemical reactions inside the battery are accelerated, which not only accelerates the aging process and causes rapid capacity decay, but also significantly increases the risk of thermal runaway. Once thermal runaway occurs, it can easily cause the battery to burn or explode, posing a major safety hazard to the vehicle and occupants. Low temperatures reduce the battery's charging and discharging efficiency, prolong charging time, and reduce effective energy output, directly affecting driving mileage. It may also induce damage to the battery's internal structure when charging at low temperatures, seriously endangering the battery life and overall safety. Summary of the invention

[0004] The purpose of the present invention is to provide a new energy vehicle battery maintenance device to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a new energy vehicle battery maintenance device, comprising a base, the upper surface of the base is equidistantly provided with mounting grooves, the front and rear sides of the bottom of the mounting groove are symmetrically provided with card grooves, the upper surface of the base is fixedly provided with a mounting shell, the upper surface of the mounting shell is equidistantly provided with a plurality of guide grooves, the sides of the guide groove are symmetrically provided with side grooves, the middle parts of the side grooves on the front and rear sides are fixedly sleeved with an electric heating plate, the top surface height of the electric heating plate is lower than the upper surface of the mounting shell, the bottoms of the plurality of mounting grooves are provided with a protective mechanism, the upper part of the protective mechanism is provided with a sleeve mechanism, the upper surface of the mounting shell is equidistantly provided with a plurality of heat dissipation plates, the middle parts of the heat dissipation plates are provided with an air guide groove, the top ends of the plurality of heat dissipation plates are fixedly provided with a top plate, a partition is fixedly provided between two adjacent heat dissipation plates, the partition is fixedly connected to the mounting shell and the top plate, and the bottom surface of the top plate is equidistantly provided with a plurality of sets of power-on mechanisms.

[0006] Preferably, the protection mechanism includes a power-carrying block, which is fixedly installed in the middle of the bottom surface of the mounting groove, an elastic member is fixedly installed in the middle of the bottom surface of the mounting groove, the power-carrying block is located in the middle of the elastic member, a loading block is fixedly installed on the top of the elastic member, inner plates are symmetrically fixedly installed on the front and rear sides of the bottom surface of the loading block, outer plates are fixedly installed on the outer side surfaces of the two inner plates, and clamping blocks are fixedly installed on the bottom of the outer side surfaces of the two outer plates, with the right-angled sides of the clamping blocks facing upwards, and an electromagnet is fixedly installed in the middle of the bottom surface of the mounting groove.

[0007] Preferably, the sleeve mechanism includes a sleeve column, which is fixedly mounted on the upper surface of the loading block, and is made of a material with a thermal conductivity greater than 385 W / m·K. The sleeve column is made of copper alloy, and an insulating layer is provided on the front and back of the sleeve column. A battery is fixedly mounted on the middle of the sleeve column, and the electrode at the bottom of the battery is made of a flexible metal material. A telescopic sleeve is fixedly mounted on the top of the battery, and mercury is provided inside the telescopic sleeve. An electric plate is fixedly mounted on the telescopic end of the telescopic sleeve, and the electric plate is made of a conductive material. Heat conducting plates are fixedly mounted on the left and right sides of the electric plate, and the electric plate and the heat conducting plate are insulated and connected, and the telescopic sleeve and the heat conducting plate are both made of a material with a thermal conductivity greater than 385 W / m·K.

[0008] Preferably, the power supply mechanism includes two touch panels, which are fixedly mounted on the bottom surface of the top plate, a power supply is provided on the left side between the two touch panels, and a capacitor is provided on the right side between the two touch panels, and the power supply and the capacitor are both fixedly mounted on the bottom surface of the top plate.

[0009] Preferably, the upper and lower ends of the electric heating plates on the front and rear sides are connected in series with the upper and lower stages of the battery through a plurality of wires, wherein the electric plate serves as a switch for the electric heating plates on the front and rear sides.

[0010] Preferably, the touch panel, power supply and capacitor are connected in series, and the electromagnet and capacitor are connected in parallel.

[0011] Preferably, the mounting shell is made of heat-insulating material, the contact surface between the side groove and the heat-conducting plate is a smooth surface, and the opening direction of the left side of the air guide groove is consistent with the movement direction of the car.

[0012] Preferably, the loading block is made of a material with a thermal conductivity greater than 385 W / m·K, and the thermal expansion coefficient of the outer plate is greater than the thermal expansion coefficient of the inner plate.

[0013] The beneficial effects of the present invention are as follows:

[0014] 1. In the present invention, when the battery temperature rises, the mercury inside the telescopic sleeve expands due to the heat, and the expanded mercury inside the telescopic sleeve pushes the telescopic end of the telescopic sleeve to move upward, and the telescopic end of the telescopic sleeve drives the heat conductive plate to move upward through the electric plate to contact the heat sink. At this time, the heat sink dissipates heat from the battery through the sleeve column and the heat conductive plate, avoiding the problem of excessive battery temperature, which leads to accelerated chemical reactions inside the battery, decomposition of the electrolyte, accelerated battery aging, and shortened life.

[0015] 2. When the outdoor temperature is too low, the mercury inside the telescopic sleeve shrinks to dissipate heat. At this time, the telescopic end of the telescopic sleeve drives the electric plate to move downward, and the electric plate drives the heat conductive plate to move downward and separate from the heat dissipation plate. When the telescopic end of the telescopic sleeve drives the electric plate to move downward until it contacts the electric heating plate, the electric heating plate is energized and the temperature of the electric heating plate rises. The electric heating plate heats the battery through the sleeve column to increase the temperature of the battery, thereby increasing the temperature of the battery in a cold environment and improving the efficiency of battery charging and discharging, thereby avoiding the problem that the chemical reaction rate of the battery slows down under low temperature, resulting in reduced charging and discharging efficiency, extended charging time, reduced discharge current, and reduced mileage of electric vehicles.

[0016] 3. When the outdoor temperature and the heat generated by the battery are higher than the upper limit of the heat dissipation of the device, the telescopic end of the telescopic sleeve pushes the electric plate to move upward to the limit of the telescopic end of the telescopic sleeve. At this time, the sleeve column increases the temperature of the inner plate and the outer plate through the loading block at its bottom. At this time, since the thermal expansion coefficient of the inner plate is smaller than the expansion coefficient of the outer plate, the outer plate drives the card block to bend in the direction of the elastic member, so that the card block is disengaged from the card slot, the elastic member pushes the loading block to move upward, and the loading block pushes the sleeve mechanism above it to move upward, so that the battery is separated from the power-on block. At this time, the battery stops discharging to the car, thereby reducing the battery temperature and avoiding the heat accumulation inside the battery, which may cause thermal runaway, causing internal short circuit of the battery, or even explosion and fire. At the same time, the power-on mechanism cooperates with the protection mechanism to automatically reset the battery in the sleeve mechanism after cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the installation shell structure of the present invention;

[0020] Figure 4 It is a schematic diagram of the sleeve connection mechanism structure of the present invention;

[0021] Figure 5 It is a schematic diagram of the structure of the protection mechanism of the present invention;

[0022] Figure 6 It is a schematic diagram of the structure of the power supply mechanism of the present invention.

[0023] In the figure: 1. base; 101. mounting slot; 102. clamping slot; 2. mounting shell; 201. guide slot; 202. side slot; 3. electric heating plate; 4. protection mechanism; 401. power block; 402. elastic member; 403. loading block; 404. inner plate; 405. outer plate; 406. clamping block; 407. electromagnet; 5. sleeve mechanism; 501. sleeve column; 502. battery; 503. telescopic sleeve; 504. electric plate; 505. heat conducting plate; 6. heat sink; 7. top plate; 8. partition; 9. power mechanism; 901. touch plate; 902. power supply; 903. capacitor. DETAILED DESCRIPTION

[0024] 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.

[0025] like Figures 1 to 6As shown, an embodiment of the present invention provides a new energy vehicle battery maintenance device, including a base 1, an upper surface of the base 1 is equidistantly provided with mounting grooves 101, and a card groove 102 is symmetrically provided on the front and rear sides of the bottom of the mounting groove 101, and a mounting shell 2 is fixedly installed on the upper surface of the base 1, and the mounting shell 2 is made of a heat-insulating material, and the mounting shell 2 is made of a high-temperature resistant plastic, thereby improving the heat insulation effect of the mounting shell 2 and reducing the influence of the external ambient temperature of the device on the battery 502 inside it, and a plurality of guide grooves 201 are equidistantly provided on the upper surface of the mounting shell 2, and side grooves 202 are symmetrically provided on the side of the guide groove 201, and the contact surface between the side groove 202 and the heat-conducting plate 505 is a smooth surface, thereby reducing the friction resistance between the side groove 202 and the heat-conducting plate 505, and reducing the expansion of mercury inside the telescopic sleeve 503 to push the telescopic end of the telescopic sleeve 503 to drive the heat-conducting plate 505 through the electric plate 504. 5 influence of resistance on mercury expansion when moving upward, improve the accuracy of temperature detection of sleeve mechanism 5, the middle part of front and rear side grooves 202 is fixedly sleeved with electric heating plate 3, the top surface height of electric heating plate 3 is lower than the upper surface of mounting shell 2, the bottom of multiple mounting grooves 101 is provided with protection mechanism 4, the upper part of protection mechanism 4 is provided with sleeve mechanism 5, the upper surface of mounting shell 2 is equidistantly fixedly installed with multiple heat sinks 6, the middle part of heat sink 6 is provided with air guide groove, the opening direction of the left side of air guide groove is consistent with the moving direction of automobile, so that when automobile moves, cold air flows through air guide groove quickly, cools down heat sink 6, improves heat dissipation efficiency of heat sink 6, top plate 7 is fixedly installed on the top of multiple heat sinks 6, partition plate 8 is fixedly installed between two adjacent heat sinks 6, partition plate 8 is fixedly connected with mounting shell 2 and top plate 7, multiple groups of power-on mechanisms 9 are fixedly installed on the bottom surface of top plate 7 at equal distances.

[0026] like Figure 2 and Figure 5As shown, the protection mechanism 4 includes a power block 401, which is fixedly installed in the middle of the bottom surface of the installation groove 101, and an elastic member 402 is fixedly installed in the middle of the bottom of the installation groove 101. The power block 401 is located in the middle of the elastic member 402, and a load block 403 is fixedly installed on the top of the elastic member 402. The load block 403 is made of a material with a thermal conductivity greater than 385W / m·K, and the load block 403 is made of copper alloy, so that the load block 403 quickly transfers the heat of the sleeve column 501 and the battery 502 to the inside of the inner plate 404 and the outer plate 405, so that the inner plate 404 and the outer plate 405 quickly expand toward the elastic member 4 02, inner plates 404 are symmetrically fixedly installed on the front and rear sides of the bottom of the loading block 403, outer plates 405 are fixedly installed on the outer sides of the two inner plates 404, and the thermal expansion coefficient of the outer plates 405 is greater than that of the inner plates 404, so that when the inner plates 404 and the outer plates 405 are heated, the inner plates 404 and the outer plates 405 are bent in the direction of the elastic member 402, so that the outer plate 405 drives the block 406 to separate from the slot 102, and the bottoms of the outer sides of the two outer plates 405 are fixedly installed with the block 406, and the right-angled sides of the block 406 are facing upwards, and an electromagnet 407 is fixedly installed in the middle of the bottom of the installation slot 101.

[0027] like Figure 2 and Figure 4As shown, the sleeve mechanism 5 includes a sleeve column 501, which is fixedly mounted on the upper surface of the object loading block 403. The sleeve column 501 is made of a material with a thermal conductivity greater than 385W / m·K. The sleeve column 501 is made of a copper alloy, so as to achieve uniform heat dissipation and heating of the battery 502 in the middle, and avoid uneven heating of the battery 502, which causes increased internal stress of the battery 502 and reduced service life. The front and back of the sleeve column 501 are both provided with an insulating layer, so as to avoid the sleeve column 501 from connecting to the electric heating plates 3 on the front and back sides thereof, so that the electric heating plates 3 are energized. The battery 502 is fixedly mounted in the middle of the sleeve column 501, and the electrode at the bottom of the battery 502 is made of a flexible metal material, and the electrode at the bottom of the battery 502 is made of copper, so as to improve the tightness of the contact between the battery 502 and the energizing block 401 and avoid poor contact. The top of the battery 502 is fixed. A telescopic sleeve 503 is installed, and mercury is arranged inside the telescopic sleeve 503, so as to detect the temperature between the sleeve column 501 and the battery 502, and at the same time, the telescopic end of the telescopic sleeve 503 is pushed to move upward. An electric plate 504 is fixedly installed on the telescopic end of the telescopic sleeve 503, and the electric plate 504 is made of conductive material, and the electric plate 504 is made of copper alloy. Heat conducting plates 505 are fixedly installed on the left and right sides of the electric plate 504, and the electric plate 504 and the heat conducting plates 505 are connected by insulation. The sleeve column 501, the telescopic sleeve 503 and the heat conducting plates 505 are all made of materials with a thermal conductivity greater than 385W / m·K, and the sleeve column 501, the telescopic sleeve 503 and the heat conducting plates 505 are all made of copper alloy, so as to improve the heat conduction efficiency between the sleeve column 501, the telescopic sleeve 503 and the heat conducting plates 505, and realize rapid cooling and heating of the battery 502.

[0028] like Figure 2 and Figure 6 As shown, the power supply mechanism 9 includes two touch plates 901, which are fixedly mounted on the bottom surface of the top plate 7. A power supply 902 is provided on the left side between the two touch plates 901, and a capacitor 903 is provided on the right side between the two touch plates 901. Both the power supply 902 and the capacitor 903 are fixedly mounted on the bottom surface of the top plate 7.

[0029] like Figure 3 and Figure 4 As shown, the upper and lower ends of the front and rear electric heating plates 3 are connected in series with the upper and lower stages of the battery 502 through multiple wires, wherein the electric plate 504 serves as a switch for the front and rear electric heating plates 3, so that when the electric plate 504 contacts the two electric heating plates 3, power is supplied between the battery 502 and the electric heating plates 3 and the electric plate 504, so that the electric heating plates 3 heat the sleeve column 501, thereby increasing the temperature of the battery 502 inside the sleeve column 501, thereby overcoming the problem of the battery 502 being too cold.

[0030] like Figure 2 , Figure 4 and Figure 6As shown, the touch plate 901, the power supply 902 and the capacitor 903 are connected in series, and the electromagnet 407 is connected in parallel with the capacitor 903, so that when the electric plate 504 contacts the touch plate 901, the power supply 902 charges the capacitor 903, and when the electric plate 504 separates from the touch plate 901, the capacitor 903 discharges the electromagnet 407.

[0031] Working principle:

[0032] When the present invention is used, the moving car drives the battery maintenance device to move to the left side. At this time, the air cools the heat sink 6 through the air guide groove in the middle of the heat sink 6. As the battery 502 is discharged and charged, the temperature of the battery 502 continues to rise, causing the mercury inside the telescopic sleeve 503 to expand due to the heat. The expanded mercury inside the telescopic sleeve 503 pushes the telescopic end of the telescopic sleeve 503 to move upward. The telescopic end of the telescopic sleeve 503 drives the electric plate 504 to move upward. The electric plate 504 drives the heat conducting plate 505 to move upward. When the heat conducting plate 505 contacts the adjacent heat sink 6, the battery 502 transfers heat to the inside of the heat sink 6 through the sleeve column 501 and the heat conducting plate 505. The air in the air guide groove in the middle of the heat sink 6 cools the heat sink 6, so that the temperature of the battery 502 continues to drop, thereby avoiding the problem that the battery 502 temperature is too high, which leads to the acceleration of the chemical reaction inside the battery, the decomposition of the electrolyte, the accelerated aging of the battery, and the shortened life.

[0033] In addition, when the outdoor temperature is too low, the mercury inside the telescopic sleeve 503 heats up and contracts. At this time, the telescopic end of the telescopic sleeve 503 drives the electric plate 504 to move downward, and the electric plate 504 drives the heat conducting plate 505 to move downward and separate from the heat sink 6. When the telescopic end of the telescopic sleeve 503 drives the electric plate 504 to move downward and contact the electric heating plate 3, the current of the battery 502 flows out from the positive electrode at the bottom of the battery 502, passes through the bottom end of the front electric heating plate 3, the top end of the front electric heating plate 3, the electric plate 504, the top end of the rear electric heating plate 3, and the bottom end of the rear electric heating plate 3, and then flows back to the top of the battery 502, thereby energizing the electric heating plate 3, raising the temperature of the electric heating plate 3, and the electric heating plate 3. The sleeve column 501 is heated, and the sleeve column 501 heats the battery 502, so that the temperature of the battery 502 increases. At the same time, the sleeve column 501 and the battery 502 heat the air in the inner cavity of the guide groove 201 between the sleeve column 501 and the electric plate 504, so that the mercury in the inner cavity of the telescopic sleeve 503 expands due to the heat, and the telescopic end of the telescopic sleeve 503 pushes the electric plate 504 to move upward to separate from the electric heating plate 3, so that the electric heating plate 3 stops heating, thereby increasing the temperature of the battery 502 in a cold environment, avoiding the problem that the chemical reaction rate of the battery slows down at low temperatures, resulting in reduced charging and discharging efficiency, extended charging time, reduced discharge current, and reduced driving mileage of the electric vehicle;

[0034] In addition, in the present invention, when the outdoor temperature and the heat generated by the battery operation are higher than the upper limit of the heat dissipation of the device, the telescopic end of the telescopic sleeve 503 pushes the electric plate 504 to move upward to the limit of the telescopic sleeve 503, and the sleeve column 501 increases the temperature of the inner plate 404 and the outer plate 405 through the carrier block 403 at its bottom. At this time, since the thermal expansion coefficient of the inner plate 404 is smaller than the expansion coefficient of the outer plate 405, the outer plate 405 drives the block 406 to bend in the direction of the elastic member 402. When the block 406 is disengaged from the card slot 102, the elastic member 402 pushes the carrier block 403 to move upward, and the carrier block 403 pushes the sleeve mechanism 5 above it to move upward, so that the battery 502 is separated from the power-on block 401. At this time, the battery 502 stops discharging to the car, reducing the temperature of the battery 502, avoiding the heat accumulation inside the battery that may cause thermal runaway. , causing internal short circuit of the battery, and even explosion and fire. In addition, when the electric plate 504 contacts the two contact plates 901 directly above it, the electric plate 504, the two contact plates 901, the power supply 902 and the capacitor 903 form a loop, and the power supply 902 charges the capacitor 903. As the sleeve mechanism 5 continues to cool down under the action of the heat sink 6, the mercury inside the telescopic sleeve 503 shrinks. When the electric plate 504 is separated from the contact plate 901, the capacitor 903 and the electromagnet 407 form a loop, the capacitor 903 discharges, the electromagnet 407 is energized, and the electromagnet 407 absorbs the carrier block 403 and moves downward. The carrier block 403 drives the sleeve mechanism 5, the inner plate 404 and the outer plate 405 to move downward, and the outer plate 405 drives the card block 406 to engage with the card slot 102, so that the sleeve mechanism 5 is reset, thereby reconnecting the battery 502 to the vehicle circuit.

[0035] 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.

[0036] 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 new energy vehicle battery maintenance device, comprising a base (1), characterized in that: The upper surface of the base (1) is provided with mounting grooves (101) at equal intervals, and the bottom of the mounting grooves (101) is provided with symmetrical clamping grooves (102) on both sides thereof. A mounting shell (2) is fixedly mounted on the upper surface of the base (1), and a plurality of guide grooves (201) are provided on the upper surface of the mounting shell (2) at equal intervals, and the side surfaces of the guide grooves (201) are provided with symmetrical side grooves (202), and electric heating plates (3) are fixedly sleeved in the middle of the side grooves (202) on both sides thereof, and the top surface of the electric heating plate (3) is lower than the upper surface of the mounting shell (2), and the plurality of the mounting grooves (201) are provided with a plurality of guide grooves (201) on both sides thereof. The bottom of each mounting groove (101) is provided with a protection mechanism (4), the upper part of the protection mechanism (4) is provided with a sleeve mechanism (5), a plurality of heat sinks (6) are fixedly installed at equal intervals on the upper surface of the mounting shell (2), an air guide groove is provided in the middle of the heat sink (6), a top plate (7) is fixedly installed on the top of the plurality of heat sinks (6), a partition plate (8) is fixedly installed between two adjacent heat sinks (6), the partition plate (8) is fixedly connected to the mounting shell (2) and the top plate (7), and a plurality of sets of power supply mechanisms (9) are fixedly installed at equal intervals on the bottom surface of the top plate (7); The protection mechanism (4) comprises a power block (401), the power block (401) is fixedly mounted in the middle of the bottom surface of the installation groove (101), an elastic member (402) is fixedly mounted in the middle of the bottom surface of the installation groove (101), the power block (401) is located in the middle of the elastic member (402), a loading block (403) is fixedly mounted on the top of the elastic member (402), inner plates (404) are symmetrically fixedly mounted on the front and rear sides of the bottom surface of the loading block (403), outer plates (405) are fixedly mounted on the outer side surfaces of the two inner plates (404), and clamping blocks (406) are fixedly mounted on the bottom of the outer side surfaces of the two outer plates (405), with the right-angled sides of the clamping blocks (406) facing upwards, and an electromagnet (407) is fixedly mounted in the middle of the bottom surface of the installation groove (101); The sleeve connection mechanism (5) comprises a sleeve column (501), the sleeve column (501) is fixedly mounted on the upper surface of the object loading block (403), the sleeve column (501) is made of a material with a thermal conductivity greater than 385 W / m·K, the sleeve column (501) is made of a copper alloy, an insulating layer is provided at the front and rear of the sleeve column (501), a battery (502) is fixedly mounted in the middle of the sleeve column (501), an electrode at the bottom of the battery (502) is made of a flexible metal material, a telescopic sleeve (503) is fixedly mounted on the top of the battery (502), and mercury is provided inside the telescopic sleeve (503), An electric plate (504) is fixedly mounted on the telescopic end of the telescopic sleeve (503), the electric plate (504) being made of a conductive material, heat conducting plates (505) are fixedly mounted on the left and right sides of the electric plate (504), the electric plate (504) and the heat conducting plates (505) being connected in an insulated manner, the telescopic sleeve (503) and the heat conducting plates (505) being both made of a material having a thermal conductivity greater than 385 W / m·K, the upper and lower ends of the electric heating plates (3) on the front and rear sides being connected in series with the upper and lower stages of the battery (502) via a plurality of wires, wherein the electric plate (504) serves as a switch for the electric heating plates (3) on the front and rear sides.

2. A new energy vehicle battery maintenance device according to claim 1, characterized in that: The power supply mechanism (9) comprises two touch panels (901), the touch panels (901) being fixedly mounted on the bottom surface of the top plate (7), a power supply (902) being provided on the left side between the two touch panels (901), a capacitor (903) being provided on the right side between the two touch panels (901), and both the power supply (902) and the capacitor (903) being fixedly mounted on the bottom surface of the top plate (7).

3. A new energy vehicle battery maintenance device according to claim 2, characterized in that: The touch panel (901), the power source (902) and the capacitor (903) are connected in series, and the electromagnet (407) and the capacitor (903) are connected in parallel.

4. A new energy vehicle battery maintenance device according to claim 1, characterized in that: The mounting shell (2) is made of heat-insulating material, the contact surface between the side groove (202) and the heat-conducting plate (505) is a smooth surface, and the opening direction of the left side of the air guide groove is consistent with the movement direction of the vehicle.

5. A new energy vehicle battery maintenance device according to claim 1, characterized in that: The object carrier block (403) is made of a material having a thermal conductivity greater than 385 W / m·K, and the thermal expansion coefficient of the outer plate (405) is greater than the thermal expansion coefficient of the inner plate (404).

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