A new energy vehicle battery assembly

Abstract

The present application relates to the technical field of new energy vehicles, and discloses a new energy vehicle battery assembly. In order to solve the problem that the battery pack cannot buffer and reduce shock and the temperature rises during the movement of the vehicle, the outer side of the battery pack is installed in the frame through multiple support sleeves, and the frame is equipped with support rods sleeved inside the support sleeves. When the speed of the frame changes, the battery pack relies on inertia to make the support rod move in the support sleeve. On the one hand, buffering is performed based on the return spring and air compression in the support sleeve. On the other hand, the airflow in the inner cavity of the support sleeve is ejected from the cooling air hole to the outer side of the battery pack to cool the battery pack, thereby finally achieving the effect of buffering and cooling.

Description

Technical Field

[0001] The present application relates to the technical field related to new energy vehicles, and in particular to a new energy vehicle battery assembly. Background Art

[0002] As the country begins to advocate low-carbon and environmental protection, more and more automobile manufacturers have begun to develop new energy vehicles. The battery pack is the power source of new energy vehicles, and its working condition directly affects the reliability and safety of the entire vehicle.

[0003] Most of the battery packs currently used in new energy vehicles are fixed in the car compartment, which means that the battery pack will be impacted when the car accelerates or decelerates or collides, and there is no buffer device in the battery box, which may affect the safety and stability of the battery pack. After the battery is damaged in a collision, it is easy to catch fire, and the batteries are tightly fitted together to reduce the occupied space. On the one hand, it is not conducive to heat dissipation, and on the other hand, it will accelerate the combustion of surrounding batteries after the battery pack catches fire. At present, most battery packs are set on the chassis of the vehicle. When the battery pack catches fire due to a collision, it is very easy to cause the items in the car to burn, causing the vehicle to spontaneously combust, affecting the life safety of the driver and passengers. Summary of the invention

[0004] The present application proposes a new energy vehicle battery assembly, which has the advantages of buffering and cooling and slowing down the spread of fire after the pack is lost after a collision, so as to solve the problems mentioned in the above background technology that the battery pack has no buffering, is not easy to dissipate heat, and the battery pack collides and catches fire, causing the vehicle to spontaneously combust quickly.

[0005] To achieve the above purpose, the present application adopts the following technical solution: a new energy vehicle battery assembly, comprising:

[0006] A vehicle frame, wherein a power receiving column is fixedly installed on the inner side of the vehicle frame, and a support rod is movably installed on the side of the power receiving column;

[0007] A battery pack, wherein the battery pack is located inside a vehicle frame, a mounting seat is movably mounted on the bottom of the battery pack, a support sleeve is fixedly mounted on the end of the mounting seat, and the support rod is movably sleeved inside the support sleeve; a return spring is arranged inside the support sleeve, a cooling air hole is opened on the side wall of the support sleeve near one side of the mounting seat, and the opening direction of the cooling air hole faces the battery pack; a protective cover is fixedly mounted on the inner side of the vehicle frame.

[0008] Furthermore, the number of the support sleeves is at least nine, and at least three support sleeves are disposed on one side of the battery pack.

[0009] Furthermore, a power transmission support block located in the inner cavity of the support sleeve is fixedly mounted at the end of the mounting seat, and a guide groove is provided on the surface of the power transmission support block. A conductive head is movably sleeved inside the support sleeve, and one end of the conductive head is slidably connected to the guide groove via a cylindrical connecting rod. The ends of the support rod and the conductive head are both tapered, and one end of the power transmission support block is electrically connected to the battery pack via a wire.

[0010] Furthermore, the conductive head and the support rod are both made of metal, and the mounting seat is made of non-conductive hard plastic.

[0011] Furthermore, a head coil located above the power transmission support block is fixedly installed at the end of the mounting seat, and the end of the head coil is pressed against the conductive head. An air intake duct is opened inside the support rod, and a one-way air valve located in the air intake duct is fixedly installed inside the support rod. The one-way air valve realizes one-way flow of external air to the inner cavity of the support sleeve.

[0012] Furthermore, an anti-drop hanging platform is provided on the inner side of the end of the support sleeve, and the material of the support sleeve is rubber.

[0013] Furthermore, a crushing head is movably mounted on the end of the conductive head, and a glass baffle located below the battery pack is fixedly mounted on the bottom of the frame, and the crushing head hits the glass baffle to break the glass baffle.

[0014] Furthermore, a plurality of heat dissipation cones are fixedly mounted on the bottom of the battery pack, and the plurality of heat dissipation cones are arranged at equal angles on the bottom of the battery pack.

[0015] Furthermore, an insulating plate located on one side of the top head coil is fixedly installed at the end of the conductive head, and the top head coil is pressed against the insulating plate by elastic force. The top head coil is connected to the battery pack via a wire, and an electric shock rod located below the top head coil is fixedly installed in the middle of the conductive head. A heating coil is connected to the end of the electric shock rod via a wire, and the heating coil is located at the inner end of the conductive head, and one end of the heating coil is connected to the inner side of the conductive head.

[0016] Furthermore, the crushing head is in an I-shape, and the heating coil is located in the middle part of the outer side of the crushing head. A crushing coil is fixedly installed on the inner side of the end of the crushing head. One end of the crushing coil is slidably connected to the conductive head, and the other end of the crushing coil is connected to the wire connected to the electric shock rod when the crushing head is fully retracted into the conductive head. When the crushing coil is energized, it generates a magnetic force that is attracted to the heating coil.

[0017] The present invention has the following beneficial effects:

[0018] The present application provides a new energy vehicle battery assembly, in which the outer side of the battery pack is installed in a vehicle frame through a plurality of support sleeves, and a support rod mounted inside the support sleeve is installed on the vehicle frame. When the speed of the vehicle frame changes, the battery pack relies on inertia to move the support rod in the support sleeve. On the one hand, buffering is performed based on the return spring and air compression in the support sleeve. On the other hand, the airflow in the inner cavity of the support sleeve is ejected from the cooling air hole to the outer side of the battery pack to cool the battery pack, thereby finally achieving a buffering and cooling effect.

[0019] At the same time, when the battery pack collides and burns, since the support sleeve is made of rubber and cooling holes are opened on the side of the support sleeve, the opening of the cooling holes makes the end of the support sleeve porous. The open support sleeve will accelerate the combustion. Finally, after the battery pack catches fire, the end of the support sleeve will be quickly burned off, and the battery pack will break through the glass baffle under its own gravity. The battery pack that falls to the bottom of the frame can increase the distance from the flammable materials in the car, thereby avoiding the battery pack from burning directly in the car, slowing down the spread of the vehicle's spontaneous combustion, and increasing the escape time of the driver and passengers, ultimately achieving the purpose of dropping the pack after a collision to slow down the spread of fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which constitute a part of the specification, illustrate the embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0021] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0022] Figure 1 This is a schematic diagram of the battery pack installation position;

[0023] Figure 2 for Figure 1 The enlarged schematic diagram at A in the middle;

[0024] Figure 3 This is a schematic diagram of the external protection of the battery pack;

[0025] Figure 4 This is a schematic diagram of the battery pack fixing method;

[0026] Figure 5 This is the bottom structure diagram of the battery pack;

[0027] Figure 6 This is the internal structure diagram of the support sleeve;

[0028] Figure 7 This is a top view of the mounting base;

[0029] Figure 8 for Figure 7 Schematic diagram of the cross-section at EE in the middle;

[0030] Fig. 9This is a simplified diagram of the crushing coil circuit control.

[0031] In the figure: 1. frame; 2. glass baffle; 3. power receiving column; 4. battery pack; 400. heat dissipation cone; 5. protective cover; 6. support sleeve; 600. cooling air hole; 7. support rod; 700. air intake duct; 701. one-way air valve; 8. reset spring; 9. conductive head; 900. crushing head; 901. insulation board; 10. head coil; 11. power transmission support block; 12. mounting seat; 13. electric shock rod; 14. crushing coil; 15. heating coil. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] Embodiment 1

[0034] See also Figure 1-Figure 5 A power receiving column 3 is fixedly installed on the inner side of the frame 1, and a support rod 7 is movably installed on the side of the power receiving column 3. The battery pack 4 is located inside the frame 1, and a mounting seat 12 is movably installed on the bottom of the battery pack 4, and a support sleeve 6 is fixedly installed on the end of the mounting seat 12. The support rod 7 is movably sleeved inside the support sleeve 6, and a return spring 8 is arranged inside the support sleeve 6. A cooling air hole 600 is opened on the side wall of the support sleeve 6 near the side of the mounting seat 12, and the opening direction of the cooling air hole 600 faces the battery pack 4, so that when the support sleeve 6 and the support rod 7 move relatively, the air flow squeezed by the support rod 7 in the support sleeve 6 will be ejected from the cooling air hole 600, and the air flow ejected from the cooling air hole 600 acts on the battery pack 4, and the battery pack 4 is cooled according to the flowing air flow.

[0035] The number of the support sleeves 6 is at least nine, and at least three support sleeves 6 are disposed on one side of the battery pack 4 to ensure that the battery pack 4 is stably placed inside the vehicle frame 1 .

[0036] A protective cover 5 wrapping the battery pack 4 is fixedly mounted on the inner side of the frame 1 . The protective cover 5 isolates the battery pack 4 from the interior of the vehicle, thereby preventing liquid in the vehicle from flowing into the battery pack 4 and reducing the probability of damage to the battery pack 4 .

[0037] When using:

[0038] When the frame 1 moves, the battery pack 4 will swing under the action of inertia. When the battery pack 4 moves toward the support rod 7 on one side, the airflow in the inner cavity of the support sleeve 6 is squeezed by the support rod 7 and ejected from the cooling air hole 600. The ejected airflow acts on the outside of the battery pack 4 to achieve cooling of the battery pack 4. The return spring 8 provided in the support sleeve 6 achieves elastic buffering of the battery pack 4 to reduce the phenomenon of damage caused by hard collision of the battery pack 4. When the frame 1 is in stable motion, the battery pack 4 will be pushed back by the elastic force of the return spring 8, thereby achieving subsequent buffering and cooling.

[0039] Embodiment 2

[0040] Embodiment 2 is a further improvement on embodiment 1.

[0041] To further ensure that the current in the battery pack 4 can be output stably, please refer to Figure 2 , Figure 4-Figure 6 , a power transmission support block 11 located in the inner cavity of the support sleeve 6 is fixedly installed at the end of the mounting seat 12, and a guide groove is opened on the surface of the power transmission support block 11, a conductive head 9 is movably sleeved inside the support sleeve 6, and one end of the conductive head 9 is slidably connected to the guide groove through a cylindrical connecting rod, the ends of the support rod 7 and the ends of the conductive head 9 are both conical, one end of the power transmission support block 11 is electrically connected to the battery pack 4 through a wire, the conductive head 9 and the support rod 7 are both made of metal, and the mounting seat 12 is a non-conductive hard plastic, so that in actual use, since there are multiple support sleeves 6, multiple currents can be connected to the outside, and The current in the battery pack 4 only needs to pass through the wire, the power transmission support block 11, the conductive head 9, the reset spring 8, the support rod 7 and the power receiving column 3 to achieve circuit connectivity, thereby ensuring that the active battery pack 4 can stably achieve current output. The reset spring 8 will press against the conical surfaces of the support rod 7 and the conductive head 9 under the action of elastic force. On the one hand, the reset spring 8 will not easily separate from the conductive head 9 and the support rod 7. On the other hand, the reset spring 8, which is always attached to the inclined surfaces of the support rod 7 and the conductive head 9, can ensure stable current output, and there will be no power failure between the support rod 7 and the conductive head 9 after relative movement, thereby ensuring the stability of the electrical connection.

[0042] At present, the heat dissipation method of the first embodiment mainly sucks the air flow through the cooling air holes 600 and acts on the outside of the battery pack 4 to cool it down. However, after the temperature of the battery pack 4 rises, the heated air flow around the battery pack 4 is sucked into the surface of the battery pack 4 through the cooling air holes 600, which will cause the cooling efficiency to decrease. Therefore, in the second embodiment, a top head coil 10 located above the power transmission support block 11 is fixedly installed at the end of the mounting seat 12, and the end of the top head coil 10 is pressed on the conductive head 9. The elastic force of the top head coil 10 is 1.5 to 2.5 times the elastic force of the reset spring 8. An air intake duct 700 is opened inside the support rod 7, which connects the inner cavity of the support sleeve 6 with the outside, and a one-way air valve 701 located in the air intake duct 700 is fixedly installed inside the support rod 7. The one-way air valve 701 realizes one-way flow of external air to the inner cavity of the support sleeve 6.

[0043] When in use, the current output of the battery pack 4 is realized through the passage constructed above. When the battery pack 4 is inertially moved by the movement of the frame 1, the support sleeve 6 will be driven to move in the direction of the support rod 7 through the mounting seat 12. Since the elastic force of the top coil 10 is greater than the elastic force of the return spring 8, when the battery pack 4 pushes the mounting seat 12 to move, on the one hand, it is buffered by the elastic force of the return spring 8, and on the other hand, the conductive head 9 squeezes the airflow in the inner cavity of the support sleeve 6 to achieve air buffering. When the air pressure in the inner cavity of the support sleeve 6 is greater than the elastic force of the top coil 10, it will be ejected from the cooling air hole 600 at a high speed. Since the airflow in the inner cavity of the support sleeve 6 is squeezed, the intensity of the airflow ejected from the cooling air hole 600 is enhanced, and the cooling efficiency of the battery pack 4 is further enhanced by accelerating the airflow rate.

[0044] When the frame 1 is in stable motion, the elastic force of the return spring 8 pushes the conductive head 9, the top coil 10 and the mounting seat 12 to cause the battery pack 4 to return to its original position. Since the top coil 10 pushes the conductive head 9 to pass over the cooling air hole 600, when the pressure in the inner cavity of the support sleeve 6 is reduced, it can only be input into the support sleeve 6 through the one-way air valve 701 through the air intake duct 700, so as to relieve the pressure in the support sleeve 6. The airflow of the support rod 7 is away from the battery pack 4 and the temperature is relatively low, so that the cooling efficiency is enhanced when the airflow in the support sleeve 6 is shot to the battery pack 4. In addition, according to actual needs, in summer, since the air conditioner is turned on in the car and the temperature is relatively low, the air intake duct 700 can be connected to the car as needed, so that the cooling temperature is diverted to the battery pack 4, so as to achieve comprehensive cooling of the battery pack 4 and avoid excessive temperature of the battery pack 4.

[0045] Embodiment 3

[0046] Embodiment 3 is a further improvement on embodiment 2.

[0047] Since the battery pack 4 is a natural phenomenon after a violent collision, such as a car accident, but the battery pack 4 is located inside the car, when the battery pack 4 spontaneously ignites, it is very easy to cause flammable materials in the car, such as seats, to burn, which will aggravate the spontaneous combustion of the entire vehicle, reduce the escape time of people after the car accident, and cause certain safety hazards to the driver and passengers. Please refer to Figure 6 An anti-detachment hanging platform is provided on the inner side of the end of the support sleeve 6, and the material of the support sleeve 6 is rubber. During the installation process, the support sleeve 6 is directly inserted from the end of the support rod 7, but when the support sleeve 6 is pulled out from the support rod 7, the anti-detachment hanging platform at the end of the support sleeve 6 will hook the end of the support rod 7 to prevent the support sleeve 6 from detaching from the support rod 7. On the one hand, it avoids the phenomenon that the battery pack 4 moves too much and causes the support sleeve 6 to detach from the support rod 7. On the other hand, it avoids the support sleeve 6 from completely detaching from the support rod 7 after the subsequent fire, affecting the work of the conductive head 9.

[0048] A crushing head 900 is movably installed at the end of the conductive head 9, and a glass baffle 2 located below the battery pack 4 is fixedly installed at the bottom of the frame 1. The crushing head 900 hits the glass baffle 2 to break the glass baffle 2. The glass baffle 2 is made of glass. When the glass baffle 2 impacts the battery pack 4 from the outside, it has great impact resistance. When the battery pack 4 hits the glass baffle 2 in the outward direction, the glass baffle 2 is easy to break.

[0049] When using;

[0050] After the battery pack 4 spontaneously ignites due to an accident, the fire will first burn the support sleeve 6 around the battery pack 4. Since the end of the support sleeve 6 close to the battery pack 4 is provided with a cooling air hole 600, the material of the end of the support sleeve 6 is relatively small, and the porous support sleeve 6 is easier to burn, which will accelerate the burning of the end of the support sleeve 6 until it breaks. Under the action of gravity of the battery pack 4, the broken support sleeve 6 will be separated from the support rod 7, and the support sleeve 6 will be broken. Figure 6It can be seen that when the mounting seat 12 pulls the conductive head 9 and the crushing head 900 away from the support rod 7 through the power transmission support block 11, since the end of the support sleeve 6 cannot be separated from the support rod 7, the cooling air hole 600 will cause the conductive head 9 to completely separate from the support rod 7 due to combustion, and the elastic force of the head coil 10 will cause the conductive head 9 to have a tendency to move forward. At this time, the support sleeve 6 cannot provide support and guidance for the conductive head 9 due to combustion, and the conductive head 9 will be deflected downwards in combination with its own gravity. Since the glass baffle 2 is located below the conductive head 9 No matter what state the battery pack 4 is in, the conductive head 9 is always deflected downward, that is, deflected toward the direction of the glass baffle 2. When the battery pack 4 falls as a whole, the crushing head 900 hits the glass baffle 2 to break the glass baffle 2. The broken glass baffle 2 will cause the battery pack 4 to fall below the frame 1, and finally the battery pack 4 can be away from the frame 1 after burning, avoiding the phenomenon that the car is too close to the fire point and is prone to natural fire. This method slows down the burning time in the car, increases the escape time of the driver and passengers, and greatly ensures safety.

[0051] Embodiment 4

[0052] Embodiment 4 is a further improvement on embodiment 3.

[0053] Since the battery pack 4 is broken by impacting the glass baffle 2, in order to enhance the breaking strength of the glass baffle 2, please refer to Figure 5 A plurality of heat dissipation cones 400 are fixedly installed at the bottom of the battery pack 4, and the plurality of heat dissipation cones 400 are arranged at equal angles at the bottom of the battery pack 4. On the one hand, the plurality of heat dissipation cones 400 are arranged to increase the contact area with the air and increase the heat dissipation efficiency of the battery pack 4. On the other hand, when the battery pack 4 falls, the contact area with the glass baffle 2 is reduced to increase the pressure, that is, the crushing strength of the glass baffle 2 is enhanced.

[0054] During the implementation of the third embodiment, since the support sleeve 6 after burning is prone to sticking to the end of the crushing head 900, the impact strength of the crushing head 900 on the glass baffle 2 is reduced. In order to prevent such a phenomenon from happening and enhance the crushing strength of the crushing head 900 on the glass baffle 2, reference is made to Figure 5-Figure 9The end of the conductive head 9 is fixedly installed with an insulating plate 901 located on one side of the top head coil 10. The insulating plate 901 is an insulator. The top head coil 10 is elastically pressed against the insulating plate 901. The top head coil 10 is connected to the battery pack 4 via a wire. The middle part of the conductive head 9 is fixedly installed with a shock rod 13 located below the top head coil 10. The end of the shock rod 13 has a heating coil 15 connected via a wire. The heating coil 15 is located at the inner end of the conductive head 9. One end of the heating coil 15 is connected to the inner side of the conductive head 9. When the shock rod 13 is deflected, the shock rod 13 is connected to the top head coil 10. The current in the battery pack 4 is transmitted through the power transmission support block 11, the conductive head 9, the protective resistor, the heating coil 15, and the conductive The head 9, the electric shock rod 13 and the top head coil 10 form a passage. When this method is implemented, an insulating sleeve is arranged on the outside of the electric shock rod 13 to prevent the electric shock rod 13 from being directly connected to the conductive head 9. When in use, after the conductive head 9 is deflected, it means that the support sleeve 6 is broken due to burning, and after the electric shock rod 13 and the top head coil 10 are connected, the heating coil 15 is prompted to heat up, and the conductive head 9 is rapidly heated up due to heat transfer, and the crushing head 900 is also heated up, thereby further melting the support sleeve 6 blocking the crushing head 900. At the same time, when the crushing head 900 after high temperature contacts the glass baffle 2, the glass baffle 2 is broken by the impact force and thermal stress, thereby further enhancing the crushing strength of the glass baffle 2.

[0055] If the glass baffle 2 is not broken by the above method, refer to Figure 8 The shape of the crushing head 900 is I-shaped, and the heating coil 15 is located in the middle of the outer side of the crushing head 900. A crushing coil 14 is fixedly installed on the inner side of the end of the crushing head 900. One end of the crushing coil 14 is slidably connected to the conductive head 9, and the other end of the crushing coil 14 is connected to the wire connected to the electric shock rod 13 when the crushing head 900 is fully retracted into the conductive head 9. When the crushing coil 14 is energized, it generates a magnetic force that is magnetically attracted to the heating coil 15. In this way, when the conductive head 9 drives the crushing head 900 downward to impact the glass baffle 2, if the glass baffle 2 is not broken by the impact, the crushing head 900 will be squeezed back into the conductive head 9. When the crushing coil 14 is connected to the wire connected to the electric shock rod 13, the crushing coil 14 and the heating coil 15 are magnetically attracted, forcing the crushing head 900 to be quickly ejected, thereby further enhancing the crushing strength of the glass baffle 2.

Claims

1. A new energy vehicle battery assembly, characterized in that: include: A vehicle frame (1), wherein a power receiving column (3) is fixedly mounted on the inner side of the vehicle frame (1), and a support rod (7) is movably mounted on the side of the power receiving column (3); A battery pack (4), the battery pack (4) being located inside the vehicle frame (1), a mounting seat (12) being movably mounted on the bottom of the battery pack (4), a support sleeve (6) being fixedly mounted on the end of the mounting seat (12), the support rod (7) being movably sleeved inside the support sleeve (6); a return spring (8) being arranged inside the support sleeve (6), a cooling air hole (600) being provided on a side wall of the support sleeve (6) close to a side of the mounting seat (12), the opening direction of the cooling air hole (600) being toward the battery pack (4); A protective cover (5), wherein the protective cover (5) is fixedly mounted on the inner side of the vehicle frame (1); A power transmission support block (11) located in the inner cavity of the support sleeve (6) is fixedly mounted on the end of the mounting seat (12), and a guide groove is provided on the surface of the power transmission support block (11). A conductive head (9) is movably sleeved inside the support sleeve (6), and one end of the conductive head (9) is slidably connected to the guide groove via a cylindrical connecting rod. The ends of the support rod (7) and the conductive head (9) are both conical, and one end of the power transmission support block (11) is electrically connected to the battery pack (4) via a wire. A head coil (10) located above the power transmission support block (11) is fixedly mounted on the end of the mounting seat (12), and the end of the head coil (10) is pressed against the conductive head (9); an air intake duct (700) is provided inside the support rod (7), and a one-way air valve (701) located in the air intake duct (700) is fixedly mounted inside the support rod (7), and the one-way air valve (701) enables one-way flow of external air to the inner cavity of the support sleeve (6); A crushing head (900) is movably mounted on the end of the conductive head (9), and a glass baffle (2) located below the battery pack (4) is fixedly mounted on the bottom of the vehicle frame (1), wherein the crushing head (900) strikes the glass baffle (2) to crush the glass baffle (2); A plurality of heat dissipation cones (400) are fixedly mounted on the bottom of the battery pack (4), and the plurality of heat dissipation cones (400) are arranged at equal angles on the bottom of the battery pack (4); The end of the conductive head (9) is fixedly mounted with an insulating plate (901) located on one side of the top head coil (10); the top head coil (10) is pressed against the insulating plate (901) by elastic force; the top head coil (10) is connected to the battery pack (4) via a wire; a contact rod (13) located below the top head coil (10) is fixedly mounted in the middle of the conductive head (9); the end of the contact rod (13) is provided with a heating coil (15) connected via a wire; the heating coil (15) is located at the inner end of the conductive head (9); and one end of the heating coil (15) is connected to the inner side of the conductive head (9); The crushing head (900) is in an I-shape, and the heating coil (15) is located in the middle of the outer side of the crushing head (900). A crushing coil (14) is fixedly installed on the inner side of the end of the crushing head (900). One end of the crushing coil (14) is slidably connected to the conductive head (9), and the other end of the crushing coil (14) is connected to a wire connected to the electric shock rod (13) when the crushing head (900) is completely retracted into the conductive head (9). When the crushing coil (14) is energized, a magnetic force is generated that attracts the heating coil (15).

2. The new energy vehicle battery assembly according to claim 1, characterized in that: The number of the support sleeves (6) is at least nine, and at least three support sleeves (6) are arranged on one side of the battery pack (4).

3. The new energy vehicle battery assembly according to claim 1, characterized in that: The conductive head (9) and the support rod (7) are both made of metal, and the mounting seat (12) is made of non-conductive hard plastic.

4. The new energy vehicle battery assembly according to claim 1, characterized in that: An anti-drop hanging platform is provided on the inner side of the end of the support sleeve (6), and the material of the support sleeve (6) is rubber.

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