Anti-seismic chassis for new energy automobile

Abstract

The invention belongs to the technical field of new energy automobiles, and discloses an anti-seismic chassis for a new energy automobile, which comprises an automobile chassis, a battery pack is mounted in the automobile chassis, through the arrangement of a buffer mechanism, when a bearing plate vibrates along with the chassis, a moving column can slide up and down in a sliding groove of a fixed plate, and when the moving column moves downwards due to vibration, the moving column can move up and down. The telescopic spring is compressed to play a preliminary buffering and damping role, meanwhile, the lantern ring moves downwards along with the moving column, the rotating blocks on the two sides of the lantern ring rotate to drive the connecting rod and the auxiliary rod to move, the buffering rod slides in the lantern ring, the reset spring is stretched, and vibration energy is further absorbed and dispersed; the influence of vibration on the battery pack is effectively relieved, the automobile chassis and the battery pack can be built, the overall stability of the chassis is enhanced, the impact of vibration on key components of the chassis is effectively relieved through the buffering mechanism, and chassis structure stress concentration and fatigue damage caused by local strong vibration are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of new energy vehicles, and in particular is a seismic-resistant chassis for new energy vehicles. Background Art

[0002] The anti-vibration chassis for new energy vehicles refers to a chassis system specially designed for new energy vehicles with good anti-vibration performance. This system not only bears the weight of the entire vehicle body, but is also responsible for transmitting and bearing various vibrations and impact forces from the road surface, ensuring that new energy vehicles can maintain a stable driving state under various road conditions.

[0003] When new energy vehicles are driving, the chassis will continue to be subjected to vibration shocks due to complex and changeable road conditions, such as potholes, speed bumps, uneven roads, etc. These vibrations will not only be directly transmitted to the body of the vehicle, affecting driving comfort, but also for the battery pack installed inside the chassis, strong vibrations may cause the electrodes, connecting lines, structural components, etc. inside the battery pack to loosen, shift, or even be damaged, which will destroy the electrical connection stability of the battery pack and cause circuit failures. When dealing with the impact of such vibrations on the battery pack, the traditional chassis structure lacks targeted and efficient buffering design, and it is difficult to meet the high stability and high safety requirements of new energy vehicles. It is not easy to effectively absorb vibration energy and it is difficult to protect the battery pack from damage. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a seismic-resistant chassis for new energy vehicles, which has the advantages of enhancing the overall stability of the chassis and improving driving comfort.

[0005] To achieve the above object, the present invention provides the following technical solution: an anti-seismic chassis for new energy vehicles, comprising a vehicle chassis, a battery pack is installed inside the vehicle chassis, a cooling mechanism is arranged around the battery pack, a receiving plate is installed at the bottom of the battery pack, and a buffer mechanism is arranged on the bottom surface of the receiving plate;

[0006] The cooling mechanism comprises a circulation pipe, a cooling box and a control valve, the circulation pipe is connected with the cooling box through-connection, and the control valve is fixedly mounted on the circulation pipe;

[0007] The buffer mechanism includes a moving column, a ring, two groups of stretching components, a gasket and a telescopic spring. The ring is fixedly installed on the top of the moving column, the two groups of stretching components are respectively installed on both sides of the ring, the telescopic spring is sleeved on the outer surface of the moving column, and the inner wall of the gasket is slidably connected to the outer wall of the moving column.

[0008] Preferably, the automobile chassis is provided with a groove, and the groove is used to install a battery pack, a cooling mechanism, a receiving plate and a buffer mechanism, and moving wheels are installed on the bottom surface of the automobile chassis.

[0009] Preferably, the circulation pipe is located at the periphery of the battery pack and is capable of surrounding the battery pack. The circulation pipe, cooling box and control valve are all located on the top surface of the receiving plate. The top of the cooling box is connected with an input pipe.

[0010] Preferably, the top surface of the movable column is fixedly connected to the bottom surface of the supporting plate, the inner wall of the ring is connected to the outer wall of the top of the movable column, the bottom of the movable column is slidably connected to a fixed plate, and a sliding groove adapted to the movable column is provided inside the fixed plate, and the sliding groove is provided to assist the sliding of the movable column.

[0011] Preferably, rotating blocks are rotatably connected to both sides of the collar, the bottom surface of the collar is fixedly connected to the top of the telescopic spring, and the bottom of the telescopic spring is fixedly connected to the top surface of the gasket.

[0012] Preferably, the gasket is fixedly mounted on the top surface of the fixing plate, the gasket is circular, and both ends of the fixing plate are connected to the inner wall of the automobile chassis.

[0013] Preferably, the two groups of stretching components each include a connecting rod fixedly connected to one side of the rotating block, one end of the connecting rod is fixedly connected to an auxiliary rod, and a return spring is sleeved on the surface of the auxiliary rod.

[0014] Preferably, one end of the auxiliary rod away from the connecting rod is fixedly connected to a buffer rod, and the surface of the buffer rod is slidably connected to a sleeve rod.

[0015] Preferably, one end of the buffer rod is fixedly connected to one end of the return spring, the other end of the return spring is fixedly connected to a fixing ring, and one side of the fixing ring is fixedly connected to one end of the sleeve rod close to the connecting rod.

[0016] Preferably, one end of the sleeve rod close to the buffer rod is fixedly connected to a rotating block, one end of the rotating block is rotatably connected to a base, and one side of the base is fixedly connected to the inner wall of the automobile chassis.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention provides a buffer mechanism, when the receiving plate vibrates with the chassis, the moving column will slide up and down in the sliding groove of the fixed plate, and when the vibration causes the moving column to move downward, the telescopic spring is compressed, which plays a role of preliminary buffering and shock absorption, and at the same time the sleeve moves downward with the moving column, and the rotating blocks on both sides of the sleeve rotate to drive the connecting rod and the auxiliary rod to move, and the buffer rod slides in the sleeve rod, so that the reset spring is stretched, further absorbing and dispersing the vibration energy, and through the synergistic effect of multiple groups of structures, the impact of vibration on the battery pack is effectively reduced, the automobile chassis and the battery pack can be constructed, and the overall stability of the chassis is enhanced. The impact of vibration on key components of the chassis (such as the battery pack) is effectively alleviated through the buffer mechanism, and the stress concentration and fatigue damage of the chassis structure caused by local strong vibration are reduced, thereby extending the service life of the chassis, maintaining the integrity and stability of the chassis structure, reducing the transmission of chassis vibration to the vehicle body, reducing the bumpy feeling felt by the driver and passengers in the vehicle, and improving the stability and comfort during driving.

[0019] By setting a cooling mechanism, the present invention can inject coolant (usually liquid coolant) into the cooling box through the input pipe on the top of the cooling box. The coolant is stored in the cooling box and circulates around the battery pack through the circulation pipe. Since the circulation pipe surrounds the battery pack, it can fully absorb the heat dissipated by the battery pack. The control valve can control the flow rate and circulation state of the coolant in the circulation pipe, thereby adjusting the cooling effect. By controlling the flow rate and circulation state of the coolant through the control valve, the cooling amplitude can be adjusted according to the actual working conditions of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall disassembly of the present invention;

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0023] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 It is a schematic diagram of the structure of the gasket and the telescopic spring of the present invention;

[0025] Figure 6 It is a schematic diagram of the buffer mechanism of the present invention;

[0026] Figure 7 It is a schematic diagram of the disassembly of the buffer mechanism of the present invention.

[0027] In the figure: 1. Automobile chassis; 2. Battery pack; 3. Cooling mechanism; 31. Circulation pipe; 32. Cooling box; 33. Control valve; 4. Adapter plate; 5. Buffer mechanism; 51. Moving column; 52. Ring; 521. Rotating block; 53. Stretching assembly; 531. Connecting rod; 532. Auxiliary rod; 533. Return spring; 534. Buffer rod; 535. Sleeve rod; 536. Base; 54. Gasket; 55. Telescopic spring; 56. Fixed plate. DETAILED DESCRIPTION

[0028] 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.

[0029] like Figures 1 to 7 As shown, the present invention provides an anti-seismic chassis for new energy vehicles, including a vehicle chassis 1, a battery pack 2 is installed inside the vehicle chassis 1, a cooling mechanism 3 is arranged around the battery pack 2, a receiving plate 4 is installed at the bottom of the battery pack 2, and a buffer mechanism 5 is arranged on the bottom surface of the receiving plate 4;

[0030] The cooling mechanism 3 includes a circulation pipe 31, a cooling box 32 and a control valve 33. The circulation pipe 31 is connected to the cooling box 32 through-connection, and the control valve 33 is fixedly mounted on the circulation pipe 31.

[0031] The buffer mechanism 5 includes a moving column 51, a ring 52, two sets of stretching components 53, a gasket 54 and a telescopic spring 55. The ring 52 is fixedly installed on the top of the moving column 51, the two sets of stretching components 53 are respectively installed on both sides of the ring 52, the telescopic spring 55 is sleeved on the outer surface of the moving column 51, and the inner wall of the gasket 54 is slidably connected to the outer wall of the moving column 51.

[0032] With the above solution, the battery pack 2 and its related cooling and buffering mechanism 5 are installed in the groove of the automobile chassis 1, with a reasonable and compact layout. The buffering mechanism 5 not only protects the battery pack 2, but also indirectly enhances the overall structural stability of the chassis. Because the stable installation state of the battery pack 2 reduces the additional stress and interference on the chassis structure caused by battery shaking or displacement, the connection and force between the structural components of the chassis are more uniform and stable when the chassis is subjected to various complex road conditions and driving loads, reducing the risk of deformation and damage of the chassis due to local uneven force, helping to maintain the original design performance and geometric shape of the chassis, and ensuring the long-term stability of the vehicle's controllability and driving safety. The circulation pipe 31 surrounds the battery pack 2 and provides a flow channel for the coolant, so that the coolant can take away the heat generated by the battery pack 2, realize heat exchange, and achieve the purpose of cooling. The cooling box 32 stores coolant and provides a source and a containing space for the circulation of the coolant. The circulation flow of the coolant is ensured by connecting with the circulation pipe 31. The control valve 33 accurately controls the flow rate, flow rate and other parameters of the coolant in the circulation pipe 31, so as to flexibly adjust the cooling intensity according to the actual temperature of the battery pack 2. Through the setting of the buffer mechanism 5, when the receiving plate 4 vibrates with the chassis, the displacement The movable column 51 will slide up and down in the sliding groove of the fixed plate 56. When the vibration causes the movable column 51 to move downward, the telescopic spring 55 is compressed, which plays a preliminary role in buffering and shock absorption. At the same time, the ring 52 moves downward with the movable column 51, and the rotating blocks 521 on both sides of the ring 52 rotate to drive the connecting rod 531 and the auxiliary rod 532 to move. The buffer rod 534 slides in the sleeve rod 535, so that the return spring 533 is stretched, further absorbing and dispersing the vibration energy. Through the synergistic effect of multiple groups of structures, the impact of vibration on the battery pack 2 is effectively reduced, the automobile chassis 1 and the battery pack 2 can be constructed, and the overall stability of the chassis is enhanced. The impact of vibration on key components of the chassis (such as the battery pack 2) is effectively alleviated through the buffer mechanism 5, and the stress concentration and fatigue damage of the chassis structure caused by local strong vibration are reduced, thereby extending the service life of the chassis, maintaining the integrity and stability of the chassis structure, reducing the transmission of chassis vibration to the vehicle body, reducing the bumpy feeling felt by the driver and passengers in the vehicle, and improving the stability and comfort during driving.

[0033] like Figures 3 to 6As shown, the automobile chassis 1 is provided with a groove, and the groove is provided for installing the battery pack 2, the cooling mechanism 3, the receiving plate 4 and the buffer mechanism 5. The bottom surface of the automobile chassis 1 is provided with a moving wheel. The circulation pipe 31 is located at the periphery of the battery pack 2 and can surround the battery pack 2. The circulation pipe 31, the cooling box 32 and the control valve 33 are all located on the top surface of the receiving plate 4. The top of the cooling box 32 is connected with an input pipe. The top surface of the moving column 51 is fixedly connected to the bottom surface of the receiving plate 4. The inner wall of the collar 52 is connected to the outer wall of the top of the moving column 51. The bottom of the moving column 51 is slidably connected with a fixed plate 56, and a sliding groove adapted to the moving column 51 is provided inside the fixed plate 56. The sliding groove is provided for assisting the sliding of the moving column 51. The two sides of the collar 52 are rotatably connected with a rotating block 521. The bottom surface of the collar 52 is fixedly connected to the top of the telescopic spring 55, and the bottom of the telescopic spring 55 is fixedly connected to the top surface of the gasket 54.

[0034] With the above solution, the buffer mechanism 5 provides good physical shock absorption protection for the battery pack 2. When the car is driving on a bumpy road, the buffer mechanism 5 at the bottom of the receiving plate 4 comes into play. The telescopic spring 55 is first compressed when the moving column 51 moves downward, absorbing part of the vibration energy and playing a preliminary buffering role. At the same time, the tensile components 53 on both sides of the collar 52 further disperse and absorb the vibration energy through the coordinated movement of the rotating block 521, the connecting rod 531, the auxiliary rod 532, the buffer rod 534, the sleeve rod 535 and the reset spring 533. This multi-structure and multi-level buffer design effectively reduces the impact of vibration on the battery pack 2, prevents the electrodes, connecting lines and other components inside the battery from loosening and being damaged due to vibration, ensures the structural integrity of the battery pack 2 and the reliability of the electrical connection, thereby extending the service life of the battery pack 2, reducing the failure rate of the battery pack 2, and improving the overall reliability and safety of the vehicle. The moving column 51 connects the receiving plate 4 and other buffer components, transmits the vibration of the receiving plate 4 to the buffer mechanism 5, and slides in the sliding groove of the fixed plate 56 to guide the movement direction of the buffer mechanism 5. The collar 52 serves as a hub connecting the moving column 51 and the stretching assembly 53, which connects the moving column 51 to the buffer mechanism 5. The up and down movement is converted into the action of the stretching component 53, so that the buffering effect is expanded in multiple directions. The stretching component 53 is composed of a connecting rod 531, an auxiliary rod 532, a buffer rod 534, a sleeve rod 535, a reset spring 533, a fixed ring and a rotating block. Driven by the sleeve ring 52, the reset spring 533 is stretched or compressed through the relative movement between the components, and the vibration energy is converted into the elastic potential energy of the spring, thereby reducing the impact of the vibration on the battery pack 2. The gasket 54 is fixed on the fixed plate 56 and cooperates with the telescopic spring 55. On the one hand, it provides a support surface for the telescopic spring 55, and on the other hand, it plays a stabilizing and guiding role when the moving column 51 slides up and down.

[0035] like Figures 2 to 7As shown, the gasket 54 is fixedly installed on the top surface of the fixing plate 56, the gasket 54 is circular, and the two ends of the fixing plate 56 are connected to the inner wall of the automobile chassis 1. The two sets of stretching components 53 both include a connecting rod 531 fixedly connected to one side of the rotating block 521, one end of the connecting rod 531 is fixedly connected to an auxiliary rod 532, and the surface of the auxiliary rod 532 is sleeved with a return spring 533, and the end of the auxiliary rod 532 away from the connecting rod 531 is fixedly connected to a buffer rod 534, and the surface of the buffer rod 534 is slidably connected to a sleeve rod 535, one end of the buffer rod 534 is fixedly connected to one end of the return spring 533, and the other end of the return spring 533 is fixedly connected to a fixing ring, one side of the fixing ring is fixedly connected to one end of the sleeve rod 535 close to the connecting rod 531, and one end of the sleeve rod 535 close to the buffer rod 534 is fixedly connected to a rotating block, one end of the rotating block is rotatably connected to a base 536, and one side of the base 536 is fixedly connected to the inner wall of the automobile chassis 1.

[0036] The above scheme is adopted: during the up and down movement of the moving column 51, the telescopic spring 55 directly absorbs and buffers a part of the vibration energy through its own telescopic deformation, and works together with the stretching component 53 to enhance the buffering effect. The automobile chassis 1 provides an installation foundation and a protection frame for the battery pack 2, the cooling mechanism 3, the receiving plate 4 and the buffer mechanism 5. The grooves provided therein are convenient for the layout and installation of various components. The moving wheels on the bottom enable the automobile to travel on the road. The receiving plate 4 carries the battery pack 2 and evenly transfers the weight of the battery pack 2 to the buffer mechanism 5. Under the action of the buffer mechanism 5, the impact of the chassis vibration on the battery pack 2 is reduced. Through the setting of the cooling mechanism 3, the coolant (usually liquid coolant) can be injected into the cooling box 32 through the input pipe on the top of the cooling box 32. The coolant is stored in the cooling box 32 and circulated in the battery through the circulation pipe 31. The cooling fluid circulates around the battery pack 2. Since the circulation pipe 31 surrounds the battery pack 2, it can fully absorb the heat dissipated by the battery pack 2. The control valve 33 can control the flow rate and circulation state of the coolant in the circulation pipe 31, so as to adjust the cooling effect. By controlling the flow rate and circulation state of the coolant by the control valve 33, the cooling amplitude can be adjusted according to the actual working condition of the battery pack 2. Since the battery pack 2 is effectively temperature controlled and shock-absorbing protected, its failure rate is greatly reduced, reducing the high cost caused by the maintenance or replacement of the battery pack 2. At the same time, the improvement of the stability of the chassis structure also reduces the maintenance and adjustment work required due to damage or deformation of the chassis components, reduces the overall maintenance cost and maintenance frequency of the vehicle, and improves the vehicle's economic use and operating efficiency, which is of great significance to both ordinary consumers and commercial vehicles.

[0037] The working principle and use process of the present invention are as follows: when the car is running, the battery pack 2 starts to work and generates heat. If the battery pack 2 needs to be cooled, a coolant (usually a liquid coolant) can be injected into the cooling box 32 through the input pipe on the top of the cooling box 32. The coolant is stored in the cooling box 32 and circulates around the battery pack 2 through the circulation pipe 31. Since the circulation pipe 31 surrounds the battery pack 2, it can fully absorb the heat emitted by the battery pack 2. The control valve 33 can control the flow rate and circulation state of the coolant in the circulation pipe 31, thereby adjusting the cooling effect;

[0038] During the driving of the car, the chassis may vibrate due to road bumps and other reasons. When the receiving plate 4 vibrates with the chassis, the movable column 51 will slide up and down in the sliding groove of the fixed plate 56. When the vibration causes the movable column 51 to move downward, the telescopic spring 55 is compressed, which plays a preliminary buffering and shock absorbing role. At the same time, the ring 52 moves downward with the movable column 51, and the rotating blocks 521 on both sides of the ring 52 rotate to drive the connecting rod 531 and the auxiliary rod 532 to move. The buffer rod 534 slides in the sleeve rod 535, so that the reset spring 533 is stretched, further absorbing and dispersing the vibration energy. Through the synergistic effect of multiple groups of structures, the impact of vibration on the battery pack 2 is effectively reduced, and the automobile chassis 1 and the battery pack 2 can be constructed.

[0039] 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.

[0040] 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 seismic-resistant chassis for a new energy vehicle, comprising a vehicle chassis (1), characterized in that: A battery pack (2) is installed inside the automobile chassis (1), a cooling mechanism (3) is arranged around the battery pack (2), a receiving plate (4) is installed at the bottom of the battery pack (2), and a buffer mechanism (5) is arranged on the bottom surface of the receiving plate (4); The cooling mechanism (3) comprises a circulation pipe (31), a cooling box (32) and a control valve (33); the circulation pipe (31) and the cooling box (32) are connected in a through-connection manner, and the control valve (33) is fixedly mounted on the circulation pipe (31); The buffer mechanism (5) comprises a moving column (51), a collar (52), two groups of stretching components (53), a gasket (54) and a telescopic spring (55); the collar (52) is fixedly mounted on the top of the moving column (51); the two groups of stretching components (53) are respectively mounted on both sides of the collar (52); the telescopic spring (55) is sleeved on the outer surface of the moving column (51); and the inner wall of the gasket (54) is slidably connected to the outer wall of the moving column (51).

2. The anti-vibration chassis for new energy vehicles according to claim 1, characterized in that: The automobile chassis (1) is provided with a groove, and the groove is used to install a battery pack (2), a cooling mechanism (3), a receiving plate (4) and a buffer mechanism (5). The bottom surface of the automobile chassis (1) is provided with moving wheels.

3. The anti-vibration chassis for new energy vehicles according to claim 1, characterized in that: The circulation pipe (31) is located at the periphery of the battery pack (2) and is capable of surrounding the battery pack (2); the circulation pipe (31), the cooling box (32) and the control valve (33) are all located on the top surface of the receiving plate (4); and the top of the cooling box (32) is connected with an input pipe.

4. The anti-vibration chassis for new energy vehicles according to claim 1, characterized in that: The top surface of the movable column (51) is fixedly connected to the bottom surface of the receiving plate (4), the inner wall of the collar (52) is connected to the outer wall of the top of the movable column (51), the bottom of the movable column (51) is slidably connected to a fixed plate (56), and a sliding groove adapted to the movable column (51) is provided inside the fixed plate (56), and the sliding groove is provided to assist the sliding of the movable column (51).

5. The anti-vibration chassis for new energy vehicles according to claim 1, characterized in that: Both sides of the collar (52) are rotatably connected to rotating blocks (521), the bottom surface of the collar (52) is fixedly connected to the top of the telescopic spring (55), and the bottom of the telescopic spring (55) is fixedly connected to the top surface of the gasket (54).

6. The anti-vibration chassis for new energy vehicles according to claim 4, characterized in that: The gasket (54) is fixedly mounted on the top surface of the fixing plate (56); the gasket (54) is circular; and both ends of the fixing plate (56) are connected to the inner wall of the automobile chassis (1).

7. The anti-vibration chassis for new energy vehicles according to claim 1, characterized in that: The two groups of stretching components (53) each include a connecting rod (531) fixedly connected to one side of the rotating block (521), one end of the connecting rod (531) is fixedly connected to an auxiliary rod (532), and a return spring (533) is sleeved on the surface of the auxiliary rod (532).

8. The anti-vibration chassis for new energy vehicles according to claim 7, characterized in that: One end of the auxiliary rod (532) away from the connecting rod (531) is fixedly connected to a buffer rod (534), and a sleeve rod (535) is slidably connected to the surface of the buffer rod (534).

9. The anti-vibration chassis for new energy vehicles according to claim 8, characterized in that: One end of the buffer rod (534) is fixedly connected to one end of the return spring (533), and the other end of the return spring (533) is fixedly connected to a fixing ring, and one side of the fixing ring is fixedly connected to one end of the sleeve rod (535) close to the connecting rod (531).

10. The anti-vibration chassis for new energy vehicles according to claim 8, characterized in that: One end of the sleeve rod (535) close to the buffer rod (534) is fixedly connected to a rotating block, one end of the rotating block is rotatably connected to a base (536), and one side of the base (536) is fixedly connected to the inner side wall of the automobile chassis (1).

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