CN115959198A - A self-air-cooled electric vehicle chassis - Google Patents

Abstract

The invention discloses a self-air-cooling electric automobile chassis which comprises a chassis body, hub assemblies arranged at the front end and the rear end of the chassis body, battery assemblies arranged in battery tanks, and air-cooling tanks respectively arranged between two adjacent battery tanks and between the battery tanks and the side wall of the chassis body, wherein the air-cooling tanks are used for separating the space between the battery tanks and providing heat dissipation space. This from air-cooled electric automobile chassis resets near battery compartment's structure in the chassis body, realizes more efficient nature air-cooled effect through the form of car self, can realize the effect of the anti-clearance of air-cooled structure simultaneously through the change to the air current direction in the air-cooled structure to utilize same power supply, realize that the outward appearance laying dust is got rid of and driving of vehicle below animal.

Description

A self-air-cooled electric vehicle chassis

technical field

The invention relates to the technical field of auto parts, in particular to a self-air-cooled electric vehicle chassis.

Background technique

Compared with the chassis of fuel vehicles, the chassis of electric vehicles has a flatter bottom structure. Unlike fuel vehicles, where the engine and fuel tank are placed at the rear or front of the vehicle, the kinetic energy supply components of electric vehicles—battery components—are mainly located in the chassis structure of the vehicle. On the one hand, it is to be able to lay more batteries per unit area, and on the other hand, it is to promote the relatively rapid dissipation of the heat generated by the battery itself during the operation and power supply process by means of the battery chassis. However, the existing The same type of electric vehicle chassis still has the following problems in actual use:

In order to ensure that the internal transmission parts of the car covered by the car chassis will not be too much affected by the external environment, the structural design of the car chassis itself will remain in a relatively closed state. The large amount of heat generated cannot be dissipated in time. Although the battery itself will be equipped with a corresponding cooling structure when it is used in the car, the cooling efficiency is not high due to the limited space, and the battery connection is prone to aging and short circuits due to long-term operation. As a result, the chassis of the car is prone to spontaneous combustion in the battery compartment.

Contents of the invention

The purpose of the present invention is to provide a self-air-cooled electric vehicle chassis, to solve the problem in the above-mentioned background technology, because in order to ensure that the internal transmission devices of the vehicle covered by the vehicle chassis will not be too much affected by the external environment, the structural design of the vehicle chassis itself It will remain in a relatively closed state. Although the safety performance is significantly improved, the large amount of heat generated by the battery itself cannot be dissipated in time. Although the battery itself will be equipped with a corresponding cooling structure when it is used in the car, due to The limited space leads to low cooling efficiency, and the battery connection is prone to aging and short circuit due to long-term operation, which leads to the spontaneous combustion of the battery compartment in the chassis of the car.

In order to achieve the above object, the present invention provides the following technical solutions: a self-air-cooled electric vehicle chassis, including the chassis body and hub assemblies installed at the front and rear ends of the chassis body, the battery assembly is installed in the battery slot, and the battery slot is opened in The chassis body also includes an air-cooling groove, which is respectively located between two adjacent battery grooves and between the battery groove and the side wall of the chassis body, and the air-cooling groove is used to separate the battery The spacing between slots provides space for heat dissipation;

It also includes an air-cooling assembly, the air-cooling assembly is arranged in the air-cooling slot, and the air-cooling assembly is used to introduce airflow into the chassis body during the running of the car, and actively cool the battery slot and the battery assembly by air cooling .

As a further step, the air cooling assembly includes a main pipe and a sandwich plate, the sandwich plate is a hollow structure, its inner end communicates with the main pipe through a first connecting pipe, and the lower end of the main pipe passes through the bottom of the chassis body through a vertical pipe connected to the outside.

As a further step, the sandwich plate is arranged between each battery plate in the battery assembly, and the outer end of the sandwich plate communicates with the second connecting pipe, and the second connecting pipe is installed horizontally on the side of the chassis body. Inside the air-cooled tank.

As a further step, the outer end of the second connecting pipe communicates with the air-cooling groove, and the air-cooling groove provided on the side of the chassis body is provided with a through hole communicating with the outside.

As a further step, the air-cooling assembly includes an air-cooling pipe and an air outlet pipe, the air-cooling pipe is continuously curved and vertically distributed inside the air-cooling groove, and the air outlet pipe is fixed and installed horizontally on the bottom of the chassis body, and the The inner end of the air outlet pipe passes through the air guide block and communicates with the bottom end of the air-cooled pipe, while the top of the air-cooled pipe communicates with the air hole on the right end face of the air guide block.

As a further step, the air guide block is fixed on the lower end surface of the chassis body, and the right end surface of the air guide block faces the forward direction of the vehicle, and the right end surface of the air guide block is in an arc-shaped structure.

As a further step, the top of the air-cooled pipe communicates with the air hole through a hose, the top of the air-cooled pipe is fixed and communicated with the installation box, and the bottom of the installation box is connected with the top of the hose, and the bottom of the hose The end communicates with the air hole, and a reverse flow device is also provided in the installation box, and the reverse flow device is used to make the airflow flow from the air outlet pipe to the air-cooled pipe.

As a further step, the reverse flow device includes fan blades, and the fan blades located inside the installation box are fixedly installed on the rotating shaft, and the vertically distributed rotating shaft rotates through the axis of the installation box, and the top end of the rotating shaft is connected to the motor.

As a further step, a metal plate is also provided in the air outlet pipe, one end of the metal plate is elastically rotated on the inner wall of the air outlet pipe through a pin shaft and a spring, and the other end is a sheet-like structure, and the sheet-like structure is directed towards the reverse air flow. The direction is distributed, and the front of the metal plate is connected with the pull rope, and the tail end of the pull rope is connected with the driving device, and the driving device is used to drive the pull rope to move horizontally and drive the metal plate to reciprocate.

As a further step, the driving device includes a connecting frame and a semi-circular arc-shaped pull plate, both of which are located inside the lower half of the wind guide block, and the outer convex surface of the pull plate is horizontally slidably connected to the The inside of the air guide block, and the two ends of the pull plate are connected with the connecting frame, both of which surround the rotating shaft, and the connecting frame is fixedly connected with the stay rope that runs through the air-cooled pipe. The stamping rod is fixed on the bottom end of the rotating shaft, and after the stamping rod rotates 180° from the initial state, the pull plate will be squeezed and moved to the outside to the maximum distance.

Compared with the prior art, the beneficial effect of the present invention is: the self-air-cooled electric vehicle chassis resets the structure near the battery compartment in the chassis body, and realizes a more efficient natural air-cooling effect through the form of the vehicle itself, and at the same time can By changing the airflow direction in the air-cooled structure, the anti-cleaning effect of the air-cooled structure can be realized, and the same power source can be used to remove the dust on the surface and drive the animals under the vehicle;

1. The structural design of the air-cooling groove, the main pipe and the sandwich plate can utilize the pressure difference generated under the chassis body and on the side during the driving process of the vehicle to promote the flow of air in the above structure, thereby increasing the size of the interior of the chassis body and the battery. The contact area between components and relatively low-temperature air, so as to achieve the purpose of natural air cooling and improve cooling efficiency;

2. The structural design of the air guide block and the air-cooled pipe can also use the wind force generated by the vehicle's own high-speed movement to actively enter the air-cooled pipe under the guidance of the arc-shaped structure on the right end of the air guide block. The meandering distribution of the tubes in the air-cooling groove increases the residence time of the airflow inside, ensures sufficient heat exchange, and further improves the air-cooling efficiency;

Further, the arrangement of the fan blade and the supporting motor structure can switch the flow direction of the airflow in the air-cooled pipe through the way the motor controls the rotation of the fan blade, so that the air-cooled pipe can be cleaned by the reverse flow of airflow;

Furthermore, the structural design of the pull plate and the connecting frame can use the rotation of the same rotating shaft as the driving force while the fan blade is rotating, so that the metal plate in the pipeline structure can rotate in a corresponding cycle, so that the gap between the metal plate and the pipeline can be utilized. The percussion and vibration between the two can make the dirt on the outer wall of the air outlet pipe on the outside fall off quickly, without manual cleaning repeatedly. Cause the phenomenon of rolling and so on.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention;

Fig. 2 is a structural schematic diagram of the first embodiment of the present invention;

Fig. 3 is a schematic diagram of the main pipe structure in Fig. 3 of the present invention;

Fig. 4 is the structural schematic diagram of the second embodiment of the present invention;

Fig. 5 is a schematic view of the bottom structure of Fig. 4 of the present invention;

Fig. 6 is a schematic cross-sectional structure diagram of Fig. 4 of the present invention;

7 is a schematic structural diagram of a third embodiment of the present invention;

Fig. 8 is a schematic diagram of the structure of the pulling plate of the present invention viewed from above;

Fig. 9 is a schematic diagram of the back structure of the pull plate of the present invention;

Fig. 10 is a schematic structural diagram of Embodiment 4 of the present invention.

In the figure: 1. Chassis body; 2. Hub assembly; 3. Battery slot; 4. Battery assembly; 5. Air cooling slot; 10. Second connecting pipe; 11. Through hole; 12. Air-cooled pipe; 13. Outlet pipe; 14. Air guide block; 15. Air hole; 16. Flexible hose; 17. Installation box; 18. Fan blade; 19. Rotating shaft; 20, motor; 21, metal plate; 22, bearing pin; 23, stay rope;

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figure 1-10, the present invention provides the following technical solutions:

Embodiment one:

In this embodiment, in order to be able to utilize the characteristic of the airflow velocity under the chassis of the electric vehicle being fast during high-speed driving, the following technical solutions are set up, specifically as shown in Figures 1-3, including the chassis body 1 and the installation The hub assembly 2 at the front and rear ends of the chassis body 1, the battery assembly 4 is installed in the battery slot 3, and the battery slot 3 is opened in the chassis body 1, and also includes air-cooling slots 5, and the air-cooling slots 5 are respectively located on two adjacent batteries. The position between the slots 3 and the position between the battery slot 3 and the side wall of the chassis body 1, the air-cooling slot 5 is used to separate the distance between the battery slots 3 and provide space for heat dissipation; In the slot 5, the air-cooled assembly is used to introduce airflow into the chassis body 1 during the running of the car, and actively cool the battery slot 3 and the battery assembly 4 by air cooling. The air-cooled assembly includes a main pipe 6 and a sandwich plate 7, the sandwich plate 7 is a hollow structure, its inner end communicates with the main pipe 6 through the first connecting pipe 9, and the lower end surface of the main pipe 6 passes through the vertical pipe 8 and communicates with the outside through the bottom of the chassis body 1. The sandwich plate 7 is arranged in the battery assembly 4 every between two battery panels, and the outer end of the interlayer plate 7 communicates with the second connecting pipe 10, and the second connecting pipe 10 is horizontally installed inside the air-cooling groove 5 on the side of the chassis body 1, and the outer end of the second connecting pipe 10 is connected It communicates with the air-cooling groove 5, and the air-cooling groove 5 arranged on the side of the chassis body 1 is provided with a through hole 11 communicating with the outside. Usually, the airflow velocity at the bottom of the chassis body 1 during normal driving is It is larger than the side of the chassis body 1, because the side of the chassis will be blocked by the car body, resulting in too slow airflow velocity, due to the above principle, the bottom end of the vertical pipe 8 in Figure 3 will be in a negative pressure state when the car is running at high speed , because the air flow velocity on the side of the chassis body 1 is relatively slow, so the outside air will enter the inside of the air-cooling groove 5 through the through hole 11 at this time. 10 enters the hollow structure of the sandwich panel 7, and is then discharged through the main pipe 6 and the standpipe 8, so that the high-speed movement of the vehicle itself can be used to generate power, and the external airflow can be used without contacting the battery. 1 and the air-cooling operation of the battery assembly 4, without using other driving equipment, energy saving and environmental protection, while ensuring the air-cooling effect.

Embodiment two:

In this embodiment, as shown in Figures 6-7, in order to further improve the flow time of the external airflow inside the chassis body 1, the following scheme is adopted. It is vertically distributed inside the air-cooling groove 5 in a continuous curved shape, and the air outlet pipe 13 is horizontally and fixedly installed on the bottom of the chassis body 1, and the inner end of the air outlet pipe 13 is connected to the bottom end of the air-cooling pipe 12 through the air guide block 14 and the top of the air-cooled pipe 12 communicates with the air hole 15 on the right end face of the air guide block 14, the air guide block 14 is fixed on the lower end face of the chassis body 1, and the right end face of the air guide block 14 is facing the forward direction of the automobile, And the right end surface of the air guide block 14 is an arc-shaped structure. When the car is running, the airflow below the chassis body 1 flows through the air guide block 14, and the airflow enters the air-cooled pipe 12 through the air hole 15, and along the air-cooled The inside of the curved structure of the pipe 12 flows out from the outer end of the air outlet pipe 13, thereby achieving the purpose of naturally cooling the inside of the chassis body 1. At the same time, although no corresponding means are disclosed in this embodiment, in actual application, The interlayer plate 7 in the first embodiment can also be connected to the air-cooling pipe 12 in the same way as it is connected to the main pipe 6 , so as to increase the air-cooling effect on the battery assembly 4 .

Embodiment three:

Since the car has been driving on complex roads for a long time, the dust mixed in the airflow during driving will also accumulate in the air-cooling pipe 12 and the air outlet pipe 13 along the flow direction of the airflow. The drop and the air cooling effect are greatly reduced. Therefore, in order to solve this problem, the following technical solution is disclosed in this embodiment. Specifically, as shown in Figure 7, the top of the air cooling pipe 12 communicates with the air hole 15 through a hose 16 The top of the air-cooled pipe 12 is fixed and communicated on the installation box 17, and the bottom end of the installation box 17 is connected with the top of the flexible pipe 16, and the bottom end of the flexible pipe 16 is connected with the air hole 15, and the installation box 17 also A reverse flow device is provided, and the reverse flow device is used to make the air flow flow from the air outlet pipe 13 toward the air-cooled pipe 12. The reverse flow device includes fan blades 18, and the fan blades 18 located inside the installation box 17 are fixedly installed on the rotating shaft 19 Above, the rotating shaft 19 of vertical distribution is rotated and interspersed at the axis of the installation box 17, and the top of the rotating shaft 19 is connected with the motor 20, and a corresponding program or control system can be set (it can be electrically connected with the automobile starting system circuit, and the specific control of the motor 20 Start-up time and running time method are all existing means), so that when the automobile is started, the motor 20 runs correspondingly and drives the rotating shaft 19 to rotate. The airflow generated under the condition is opposite to the airflow direction generated during the running of the vehicle. The external airflow enters through the air outlet pipe 13, flows along the air cooling pipe 12 and is finally blown out from the air hole 15, thereby using the reverse flow of airflow to deflect the wind. The inside of the cold pipe 12 is cleaned by back blowing.

Embodiment four:

In this embodiment, the technical solution in the third embodiment is further expanded. Since the air outlet pipe 13 is installed below the chassis body 1, its outer surface is easily contaminated with more mud scaling after driving for a long time. Therefore, in order to clean up this part of the sludge, the following scheme is disclosed in this embodiment. Specifically, as shown in FIGS. The elastic rotation of the spring is mounted on the inner wall of the air outlet pipe 13, and the other end is a sheet-like structure, which is distributed towards the direction of the reverse airflow, and the front of the metal plate 21 is connected to the stay cord 23, and the tail end of the stay cord 23 is connected to the The driving device is connected, and the driving device is used to drive the pull cord 23 to move horizontally back and forth, and to drive the metal plate 21 to rotate back and forth. Inside the lower half, the outer convex surface of the pull plate 25 is horizontally slidingly connected to the inside of the air guide block 14 through the spring telescopic rod 26, and the two ends of the pull plate 25 are connected with the connecting frame 24, and the two surround the rotating shaft 19. The connecting frame 24 is fixedly connected with the stay cord 23 that runs through the air-cooled pipe 12, and the lower part of the connecting frame 24 is provided with a horizontally distributed stamping rod 27, which is fixed on the bottom end of the rotating shaft 19, and the stamping rod 27 rotates from the initial state After 180°, the pull plate 25 will be squeezed to the outside to move to the maximum distance. When the rotating shaft 19 rotates, it will drive the tamping rod 27 at the bottom to rotate synchronously. Intermittent contact and disengagement. During this process, the pull plate 25 will move horizontally cyclically, and drive the pull rope 23 to move horizontally through the connecting frame 24. At this time, the metal plate 21 will rotate repeatedly and hit the inner wall of the air outlet pipe 13. On the other hand, by driving the air outlet pipe 13 to vibrate, the dirt on the outer wall of the air outlet pipe 13 is driven to fall off. In the area of the thin plate, the airflow will produce a sound of a specific frequency after contacting and vibrating with the thin plate, and the sound produced by the intermittent collision between the metal plate 21 and the air outlet pipe 13 will also have an additional effect of driving away animals under the chassis body 1 , to prevent animals from still staying under the chassis body 1 after the car is started.

It is to be understood that the terms "central", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" , "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the simplified description of the present invention, rather than indicating or implying the referred device or element It must have a specific orientation, be a specific orientation structure and operate, so it cannot be understood as a limitation to the protection content of the present invention. The standard parts used in the present invention can be purchased from the market, and the special-shaped parts can be purchased according to the instructions and the accompanying drawings. It can be customized, and the specific connection methods of each part adopt conventional means such as bolts, rivets, and welding in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the existing technology. There are conventional connection methods in the art, which will not be described in detail here.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (10)

1. A self-air-cooled electric vehicle chassis, comprising a chassis body (1) and a hub assembly (2) installed at the front and rear ends of the chassis body (1), the battery assembly (4) is installed in the battery slot (3), And the battery slot (3) is provided in the chassis body (1), and it is characterized in that: it also includes an air-cooling slot (5), and the air-cooling slot (5) is respectively located between two adjacent battery slots (3). The position and the position between the battery slot (3) and the side wall of the chassis body (1), the air-cooled slot (5) is used to separate the distance between the battery slots (3) and provide heat dissipation space; It also includes an air-cooling assembly, the air-cooling assembly is arranged in the air-cooling slot (5), and the air-cooling assembly is used to introduce airflow into the chassis body (1) during the running of the car, which is the battery slot ( 3) and the battery assembly (4) is actively cooled by air cooling. 2. A self-air-cooled electric vehicle chassis according to claim 1, characterized in that: the air-cooled assembly includes a main pipe (6) and a sandwich panel (7), and the sandwich panel (7) is a hollow structure , its inner end communicates with the main pipe (6) through the first connecting pipe (9), and the lower end surface of the main pipe (6) passes through the vertical pipe (8) and communicates with the outside through the bottom of the chassis body (1). 3. A self-air-cooled electric vehicle chassis according to claim 2, characterized in that: the sandwich plate (7) is arranged between each battery plate in the battery assembly (4), and the sandwich plate ( The outer end of 7) communicates with the second connecting pipe (10), and the second connecting pipe (10) is installed horizontally inside the air-cooling groove (5) on the side of the chassis body (1). 4. A self-air-cooled electric vehicle chassis according to claim 3, characterized in that: the outer end of the second connecting pipe (10) is in communication with the air-cooling groove (5), and this is arranged on the chassis body (1) A through hole (11) communicating with the outside is provided on the side air-cooling groove (5). 5. A self-air-cooled electric vehicle chassis according to claim 1, characterized in that: the air-cooled assembly includes an air-cooled pipe (12) and an air outlet pipe (13), and the air-cooled pipe (12) It is continuously curved and vertically distributed inside the air-cooling groove (5), and the air outlet pipe (13) is fixed and installed horizontally on the bottom of the chassis body (1), and the inner end of the air outlet pipe (13) passes through the air guide block (14) communicates with the bottom of the air-cooled pipe (12), while the top of the air-cooled pipe (12) communicates with the right end surface air hole (15) of the air guide block (14). 6. A self-air-cooled electric vehicle chassis according to claim 5, characterized in that: the air guide block (14) is fixed on the lower end surface of the chassis body (1), and the right end of the air guide block (14) The face is towards the forward direction of the automobile, and the right end face of the air guide block (14) is an arc structure. 7. A self-air-cooled electric vehicle chassis according to claim 6, characterized in that: the top of the air-cooled pipe (12) communicates with the air hole (15) through a hose (16), and the air-cooled pipe ( 12) is fixed and connected to the top of the installation box (17), and the bottom of the installation box (17) is connected to the top of the hose (16), and the bottom of the hose (16) is connected to the air hole (15) and the installation box (17) is also provided with a reverse flow device for making the air flow flow from the outlet pipe (13) toward the air-cooled pipe (12). 8. A self-air-cooled electric vehicle chassis according to claim 7, characterized in that: the reverse flow device includes fan blades (18), and the fan blades (18) located inside the installation box (17) ) is fixedly installed on the rotating shaft (19), the vertically distributed rotating shaft (19) rotates and intersects at the axis of the installation box (17), and the top of the rotating shaft (19) is connected with the motor (20). 9. A self-air-cooled electric vehicle chassis according to claim 8, characterized in that: a metal plate (21) is also arranged in the air outlet pipe (13), and one end of the metal plate (21) passes through a pin shaft ( 22) and the elastic rotation of the spring are installed on the inner wall of the air outlet pipe (13), and the other end is a sheet-like structure, which is distributed towards the direction of the reverse air flow, and the front of the metal plate (21) is connected to the pull cord (23) The tail end of the stay cord (23) is connected to the drive device, and the drive unit is used to drive the stay cord (23) to move horizontally back and forth, and to drive the metal plate (21) to rotate back and forth. 10. A self-air-cooled electric vehicle chassis according to claim 9, characterized in that: the drive device includes a connecting frame (24) and a semi-circular arc-shaped pull plate (25), both of which are located at Inside the second half of the wind guide block (14), the outer convex surface of the pull plate (25) is horizontally slid and connected to the inside of the wind guide block (14) through a spring telescopic rod (26), and the two sides of the pull plate (25) The end is connected with the connecting frame (24), and the two surround the rotating shaft (19), and the connecting frame (24) is fixedly connected with the stay rope (23) passing through the air-cooled pipe (12), and the connecting frame (24 ) is provided with a horizontally distributed tamping rod (27), which is fixed at the bottom of the rotating shaft (19), and the tamping rod (27) will move the pull plate (25) toward the Outside extrusion moves to maximum distance.

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