CN218536324U

CN218536324U - Electric automobile chassis

Info

Publication number: CN218536324U
Application number: CN202222640714.1U
Authority: CN
Inventors: 邓伟安
Original assignee: Ningbo Runcheng Intelligent Technology Co ltd
Current assignee: Ningbo Runcheng Intelligent Technology Co ltd
Priority date: 2022-10-09
Filing date: 2022-10-09
Publication date: 2023-02-28
Anticipated expiration: 2032-10-09

Abstract

The utility model relates to a new energy automobile field discloses an electric automobile chassis, and the last plane laminating of battery package (4) is provided with metal mounting panel (5), and the last face laminating of metal mounting panel (5) is provided with serpentine coil (6), and serpentine coil (6) intussuseption is filled with the coolant liquid, links up between import (7) and export (8) of serpentine coil (6) back flow (9), the utility model discloses an electric automobile chassis carries out the heat exchange with metal mounting panel (5) and battery package (4) with the help of the coolant liquid in serpentine coil (6), can effectively reduce the produced heat of battery package (4) to promote the battery performance. The cooling liquid in the serpentine coil (6) is driven to flow through the first circulating water pump (11), so that the heat exchange efficiency of the cooling liquid can be accelerated, and the cooling effect is further improved.

Description

Electric automobile chassis

Technical Field

The utility model relates to a new energy automobile field especially relates to an electric automobile chassis.

Background

The electric vehicle (BEV) is a vehicle which takes a vehicle-mounted power supply as power and drives wheels by a motor, and meets various requirements of road traffic and safety regulations. Because the influence on the environment is smaller than that of the traditional automobile, the prospect is widely seen. In the existing electric vehicle, a power battery is usually integrated in a chassis, as disclosed in the utility model with publication number CN214647528U, a similar chassis and electric vehicle are disclosed.

In the actual use process of the electric automobile, the power battery needs to be in a discharge state for a long time, so that a certain heat value exists, the running time is long, the performance of the battery is easy to reduce, and the driving experience is influenced, so that the improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's shortcoming, provide an electric automobile chassis, take away the produced heat of battery package with the help of the coolant liquid in the snake shape coil, can effectively improve the battery performance to promote driving experience.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve:

an electric automobile chassis comprises an upper cover plate and a lower cover plate which are spliced up and down, wherein a battery bin is arranged on the upper plane of the lower cover plate, a battery pack is contained in the battery bin, a metal mounting plate is attached to the upper plane of the battery pack, a serpentine coil is attached to the upper plate surface of the metal mounting plate, cooling liquid is filled in the serpentine coil, and a backflow pipe is connected between the inlet and the outlet of the serpentine coil; a liquid storage bin for storing cooling liquid is arranged between the return pipe and the inlet, and a first circulating water pump is connected between the inlet and the liquid storage bin to pump out the cooling liquid in the liquid storage bin and convey the cooling liquid into the snake-shaped coil pipe through the inlet.

Adopt above-mentioned scheme, carry out the heat exchange with metal mounting panel and battery package with the help of the coolant liquid in the snake shape coil, can effectively reduce the produced heat of battery package to promote the battery performance. The cooling liquid in the snake-shaped coil pipe is driven to flow through the first water circulating pump, so that the heat exchange efficiency of the cooling liquid can be accelerated, and the cooling effect is further improved.

Preferably, a second circulating water pump is connected between the outlet and the return pipe to pump out the cooling liquid in the serpentine coil and convey the cooling liquid into the liquid storage bin through the return pipe.

By adopting the scheme, the second circulating water pump can promote the circulating power of the cooling liquid in the serpentine coil, and the cooling efficiency of the battery pack is further improved.

Preferably, a plurality of finned radiators are arranged on the side wall of the liquid storage bin, and a radiating fan is arranged on the side face, far away from the liquid storage bin, of each finned radiator.

Adopt above-mentioned scheme, with the help of finned radiator and radiator fan, can effectively reduce the temperature of the cooling liquid in the stock solution storehouse to the cooling liquid that makes flow direction serpentine coil has enough low temperature, has further promoted serpentine coil's heat exchange efficiency and battery package's cooling effect.

Preferably, one side of the battery compartment close to the cooling fan extends to the direction far away from the liquid storage compartment to form an exhaust compartment, a plurality of groups of air exhaust devices are arranged in the exhaust compartment to blow air in the exhaust compartment upwards, and a plurality of air outlets corresponding to the plurality of groups of air exhaust devices one by one penetrate through the plate surface of the upper cover plate.

Adopt above-mentioned scheme, the exhaust storehouse can save the hot-blast that blows off through radiator fan to upwards blow the hot-air in the exhaust storehouse with the help of exhaust device, discharge through the exhaust hole at last, avoid the hot-air gathering in the battery compartment, further promote the cooling effect of battery package.

Preferably, every exhaust device of group includes that the wind gap is towards the exhaust fan that corresponds the exhaust vent and be used for built on stilts exhaust fan's a plurality of branches.

By adopting the scheme, the exhaust fan is simple in structure, convenient to disassemble and assemble and low in maintenance cost, and the supporting rod can enable the exhaust fan to be arranged at the bottom of the exhaust bin in an overhead mode, so that the exhaust fan has high exhaust efficiency.

Preferably, the serpentine coil is fixed to the face of the metal mounting plate by a clip assembly.

Adopt above-mentioned scheme, can install serpentine coil in the face of metal installation board with the help of the clamp subassembly is firm, avoid serpentine coil the phenomenon of droing to appear.

Preferably, a plurality of gaskets are distributed on the bottom of the battery pack.

By adopting the scheme, the gasket can keep a certain interval between the bottom of the battery pack and the bottom surface of the battery bin, so that the heat dissipation of the bottom of the battery pack is better.

The utility model discloses owing to adopted above technical scheme, have apparent technological effect: the heat exchange is carried out with the help of the cooling liquid in the snake-shaped coil pipe, the metal mounting plate and the battery pack, the heat generated by the battery pack can be effectively reduced, and the performance of the battery is improved. The coolant liquid in the snake-shaped coil pipe is driven to flow through the first circulating water pump, so that the heat exchange efficiency of the coolant liquid can be accelerated, and the cooling effect is further improved.

Drawings

FIG. 1 is a first schematic structural diagram of the present embodiment;

FIG. 2 is an exploded view of the first embodiment;

FIG. 3 is an exploded view of the second embodiment;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a second schematic structural diagram of the present embodiment;

FIG. 6 is an enlarged view of portion B of FIG. 2;

fig. 7 is an enlarged view of the portion C shown in fig. 3.

The names of the parts indicated by the numerical references in the above figures are as follows: 1. an upper cover plate; 2. a lower cover plate; 3. a battery compartment; 4. a battery pack; 5. a metal mounting plate; 6. a serpentine coil; 7. an inlet; 8. an outlet; 9. a return pipe; 10. a liquid storage bin; 11. a first circulating water pump; 12. a second circulating water pump; 13. a finned heat sink; 14. a heat radiation fan; 15. an exhaust bin; 16. an air exhaust device; 17. an air outlet; 18. an exhaust fan; 19. a strut; 20. a clip assembly; 21. and (6) a gasket.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 1 to 4, the electric vehicle chassis disclosed in this embodiment includes an upper cover plate 1 and a lower cover plate 2 that are spliced up and down, and the upper cover plate 1 and the lower cover plate 2 can be connected by screws or welding, which belongs to the common general knowledge in the art and is not described herein again. The upper plane of the lower cover plate 2 is provided with a battery compartment 3, a battery pack 4 is arranged in the battery compartment 3, the upper plane of the battery pack 4 is provided with a metal mounting plate 5 in a laminating manner, and the metal mounting plate 5 is preferably made of a copper plate, so that the lower cover plate has better heat conduction efficiency. The laminating of the last face of metal mounting panel 5 is provided with serpentine 6, and serpentine 6 is preferred to be made by the copper pipe. The serpentine coil 6 is filled with cooling liquid, a return pipe 9 is connected between an inlet 7 and an outlet 8 of the serpentine coil 6, and the return pipe 9 is preferably made of a copper pipe and is integrally arranged with the serpentine coil 6. Be provided with the stock solution storehouse 10 that is used for saving the coolant liquid between back flow 9 and the import 7, the lateral wall of this stock solution storehouse 10 is preferred to be made by the copper alloy, can promote the bulk strength of stock solution storehouse 10, can guarantee the heat conductivility of lateral wall again. A first circulating water pump 11 is connected between the inlet 7 and the liquid storage bin 10 to pump out the cooling liquid in the liquid storage bin 10 and convey the cooling liquid into the serpentine coil 6 through the inlet 7.

As shown in fig. 2 and fig. 3, in order to enable the serpentine coil 6 to be stably mounted on the metal mounting plate 5, the serpentine coil 6 is fixed on the plate surface of the metal mounting plate 5 by the clip assembly 20, and the specific structure and mounting manner of the clip assembly 20 are well known in the art and will not be described herein again.

As shown in fig. 5, in order to improve the heat dissipation efficiency of the bottom of the battery pack 4, a plurality of metal gaskets 21 are distributed on the bottom of the battery pack 4, and the metal gaskets 21 are preferably made of copper alloy, so that the hardness of the battery pack can be improved, and the heat conduction effect can be ensured.

As shown in fig. 3, in order to improve the circulation efficiency of the cooling liquid in the serpentine coil 6, a second circulating water pump 12 is connected between the outlet 8 and the return pipe 9 to pump the cooling liquid in the serpentine coil 6 out and deliver the cooling liquid to the liquid storage bin 10 through the return pipe 9.

As shown in fig. 6, in order to keep the cooling liquid in the liquid storage bin 10 at a lower temperature, a plurality of finned radiators 13 are arranged on the side wall of the liquid storage bin 10, and a cooling fan 14 is arranged on the side surface of each finned radiator 13 far away from the liquid storage bin 10.

As shown in fig. 3 and 7, in order to take away the hot air blown by the heat dissipation fan 14 to reduce the temperature in the chassis, an exhaust chamber 15 extends from one side of the battery chamber 3 close to the heat dissipation fan 14 toward the direction away from the liquid storage chamber 10, a plurality of sets of air exhaust devices 16 are arranged in the exhaust chamber 15 to blow the air in the exhaust chamber 15 upwards, and a plurality of air outlets 17 corresponding to the plurality of sets of air exhaust devices 16 one by one are penetrated through the plate surface of the upper cover plate 1. In this embodiment, every exhaust device 16 of group includes that the wind gap orientation corresponds exhaust fan 18 of exhaust vent 17 and is used for a plurality of branches 19 of built on stilts exhaust fan 18, and branch 19 is equipped with four, and four branches 19 divide and locate four corner positions of exhaust fan 18.

The specific working principle is as follows:

the cooling liquid in the liquid storage bin 10 can be pumped out by the aid of the first circulating water pump 11 and conveyed into the serpentine coil 6 through the inlet 7, and the cooling liquid in the serpentine coil 6 can be conveyed back into the liquid storage bin 10 through the return pipe 9 by the aid of the second circulating water pump 12, so that a complete water circulating system is formed. With the help of the cooling liquid of circulating flow, serpentine 6 can carry out the heat exchange through metal mounting panel 5 and battery package 4 to reduce the temperature of battery package 4, promoted the battery performance.

With the help of finned radiator 13 and radiator fan 14, can effectively reduce the coolant temperature in the stock solution storehouse 10 for serpentine coil 6's heat exchange efficiency is higher, thereby further promotes battery package 4's cooling effect. The hot air generated by the cooling fan 14 can be effectively discharged upwards through the air outlet 17 by the air exhaust device 16, so that the overall stability in the chassis is reduced, and the cooling effect of the battery pack 4 is further improved.

Claims

1. The utility model provides an electric automobile chassis, includes upper cover plate (1) and lower apron (2) of upper and lower concatenation, its characterized in that: the battery compartment (3) is arranged on the upper plane of the lower cover plate (2), the battery pack (4) is arranged in the battery compartment (3), the metal mounting plate (5) is attached to the upper plane of the battery pack (4), the serpentine coil (6) is attached to the upper plate surface of the metal mounting plate (5), the serpentine coil (6) is filled with cooling liquid, and a return pipe (9) is connected between an inlet (7) and an outlet (8) of the serpentine coil (6); a liquid storage bin (10) used for storing cooling liquid is arranged between the return pipe (9) and the inlet (7), and a first circulating water pump (11) is connected between the inlet (7) and the liquid storage bin (10) to pump out the cooling liquid in the liquid storage bin (10) and convey the cooling liquid into the snake-shaped coil pipe (6) through the inlet (7).

2. The electric vehicle chassis of claim 1, wherein: a second circulating water pump (12) is connected between the outlet (8) and the return pipe (9) to pump out the cooling liquid in the serpentine coil (6) and convey the cooling liquid into the liquid storage bin (10) through the return pipe (9).

3. The electric vehicle chassis of claim 1, wherein: a plurality of finned radiators (13) are arranged on the side wall of the liquid storage bin (10), and a radiating fan (14) is arranged on the side face, far away from the liquid storage bin (10), of each finned radiator (13).

4. The electric vehicle chassis of claim 3, wherein: one side of the battery compartment (3) close to the heat dissipation fan (14) extends towards the direction far away from the liquid storage compartment (10) to form an exhaust compartment (15), a plurality of groups of air exhaust devices (16) are arranged in the exhaust compartment (15) to blow air in the exhaust compartment (15) upwards, and a plurality of air outlets (17) corresponding to the plurality of groups of air exhaust devices (16) one by one penetrate through the plate surface of the upper cover plate (1).

5. The electric vehicle chassis of claim 4, wherein: each group of exhaust devices (16) comprises an exhaust fan (18) with an air port facing the corresponding exhaust port (17) and a plurality of support rods (19) for the overhead exhaust fan (18).

6. An electric vehicle chassis according to any one of claims 1 to 5, wherein: the snake-shaped coil pipe (6) is fixed on the surface of the metal mounting plate (5) through a hoop component (20).

7. An electric vehicle chassis according to any one of claims 1 to 5, wherein: a plurality of gaskets (21) are distributed at the bottom of the battery pack (4).