CN214267407U

CN214267407U - Battery cooling system, vehicle body structure and vehicle

Info

Publication number: CN214267407U
Application number: CN202120094660.6U
Authority: CN
Inventors: 孙红达; 刘善光; 陈博; 魏金廷; 左卫国; 魏娇; 韩自锋; 勾玉成; 刘阳; 王颖; 李丙佳; 申少波; 孙立强; 陈健
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-09-24
Anticipated expiration: 2031-01-12

Abstract

The utility model discloses a battery cooling system, a vehicle body structure and a vehicle, wherein the battery cooling system comprises an air inlet duct, an air outlet duct, a fan and an air inlet grille; one end of the air inlet duct is an air inlet, and the other end of the air inlet duct is communicated with the box body of the battery pack; one end of the air outlet channel is an air outlet, and the other end of the air outlet channel is communicated with the box body of the battery pack; the fan is arranged in the air outlet channel or the air inlet channel to guide air to flow from the air inlet to the air outlet; the air inlet grille is arranged at the air inlet and is configured to be capable of filtering dust and/or moisture in the air. The utility model discloses a battery cooling system can guarantee that the air that gets into the battery package is clean, prevents dust and drains, can also guarantee the seat travelling comfort when improving the NVH performance of whole car.

Description

Battery cooling system, vehicle body structure and vehicle

Technical Field

The utility model relates to a vehicle technical field specifically relates to a battery cooling system, body construction and vehicle.

Background

Compared with a conventional fuel vehicle, the hybrid vehicle has the greatest difference that the hybrid vehicle is provided with an electric drive system, the most central part of the electric drive system is a battery pack, and a large amount of heat is generated in the charging and discharging processes of the battery pack, so that the thermal management of the battery pack is an important aspect of the electric drive system.

At present, the air cooling mode is the main cooling method for the thermal management of the battery pack, and the cooling air is introduced into the box body of the battery pack, and the air bypasses the surface of the battery module or the battery core at a certain flow rate under the action of the fan, so that the heat generated by the battery core is brought into the external environment.

However, in the prior art, it is often difficult to ensure that the air entering the case of the battery pack is clean at the inlet of the cooling passage, and in addition, there is a problem in that the battery module may be short-circuited during the cooling process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the problem that prior art exists, providing a battery cooling system, this battery cooling system can guarantee that the air that gets into the battery package is clean, and dustproof the draining can also guarantee the seat travelling comfort when improving the NVH performance of whole car.

In order to achieve the above object, the present invention provides a battery heat dissipation system, which includes an air inlet duct, an air outlet duct, a fan and an air inlet grille; one end of the air inlet duct is an air inlet, and the other end of the air inlet duct is communicated with the box body of the battery pack; one end of the air outlet channel is an air outlet, and the other end of the air outlet channel is communicated with the box body of the battery pack; the fan is arranged in the air outlet channel or the air inlet channel to guide air to flow from the air inlet to the air outlet; the air inlet grille is arranged at the air inlet and is configured to be capable of filtering dust and/or moisture in the air.

Optionally, the battery heat dissipation system includes a first elastic pad wrapping the air inlet along the circumferential direction of the air inlet.

Optionally, the air inlet duct is of a blow-molded plastic structure.

Through above-mentioned technical scheme, outside air is followed the air intake of air inlet duct gets into in the air inlet duct the effect of fan down to the air outlet of air outlet duct flows, and at the flow in-process of air, the air current flows through the box of battery package is inside and will the heat that the battery package produced is followed the air outlet is taken away, thereby realizes the cooling of battery package, owing to dust and moisture in the air inlet grid that air intake department set up can the filtered air, consequently can prevent dust and moisture entering the box of battery package is internal, avoids the battery module to take place the condition of short circuit because of dust and moisture effectively.

The utility model also provides a vehicle body structure, which comprises a rear floor, a rear seat cushion, a battery pack and the battery cooling system; the rear floor and the battery pack are respectively and fixedly arranged; an air inlet duct of the battery cooling system is fixedly arranged on the rear floor; the back row seat pad sets up on the back floor, the bottom of back row seat pad is equipped with the holding tank that extends along the air flow direction, the air inlet duct set up in the holding tank.

Optionally, the vehicle body structure comprises a seat cushion metal plate and a second elastic cushion; the seatpad panel beating is fixed to be set up in the holding tank and with form installation space between the back floor, the air inlet duct is located in the installation space and with seatpad panel beating fixed connection, the second cushion sets up the air inlet duct with between the seatpad panel beating.

Optionally, the air inlet grille is located in the accommodating groove and arranged at an interval with the air inlet.

Optionally, the air inlet grid with the seatpad panel beating passes through the joint structure cooperation and connects, and/or, the seatpad panel beating is equipped with the strengthening rib.

Optionally, the vehicle body structure includes a third resilient pad disposed between the air intake duct and the rear floor.

Optionally, the foaming surface of the rear seat cushion protrudes from the notch of the receiving groove in the air flowing direction.

The utility model also provides a vehicle, the vehicle includes foretell body structure.

The vehicle has the same advantages as the battery cooling system and the vehicle body structure compared with the prior art, and the detailed description is omitted.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

FIG. 1 is a schematic view of one embodiment of a vehicle body structure of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is a schematic view of an embodiment of the body structure of the present invention, wherein the rear seat cushion is not shown;

fig. 5 is an assembly explosion diagram of the air inlet duct and the seat cushion metal plate of the utility model;

fig. 6 is an assembly schematic view of the air inlet duct and the seat cushion metal plate of the present invention;

FIG. 7 is an exploded view of the assembly of the air inlet duct, the air inlet grille and the seat cushion sheet metal of the present invention;

fig. 8 is an assembly schematic view of the air inlet duct, the air inlet grille and the seat cushion metal plate of the present invention.

Description of the reference numerals

110-air inlet duct, 120-air outlet duct, 130-fan, 140-air inlet grille, 150-first elastic cushion, 200-battery pack, 300-rear floor, 400-rear seat cushion, 500-seat cushion sheet metal, 610-second elastic cushion, 620-third elastic cushion

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

As shown in fig. 1 to 8, the battery heat dissipation system of the present invention includes an air inlet duct 110, an air outlet duct 120, a fan 130, and an air inlet grille 140; one end of the air inlet duct 110 is an air inlet, and the other end is communicated with the box body of the battery pack 200; one end of the air outlet channel 120 is an air outlet, and the other end is communicated with the box body of the battery pack 200; the fan 130 is disposed in the air outlet duct 120 or the air inlet duct 110 to guide air from the air inlet to the air outlet; the air intake grill 140 is disposed at the air intake and configured to filter dust and/or moisture in the air.

The utility model discloses in, outside air gets into in the air inlet duct 110 from the air intake of air inlet duct 110, the air outlet to air-out duct 120 flows under fan 130's effect, at the mobile in-process of air, the heat that the air current was through the box of battery package 200 inside and was produced battery package 200 is taken away from the air outlet, thereby realize the cooling of battery package 200, because dust and moisture in the air inlet grille 140 that sets up in air inlet department can the filtered air, consequently, can prevent in dust and the box that moisture got into battery package 200, avoid the battery module to take place the condition of short circuit because of dust and moisture effectively.

In order to reduce the relative vibration between the air inlet duct 110 and the external component, thereby improving the NVH performance of the entire vehicle, in an embodiment of the present invention, the battery heat dissipation system includes a first elastic pad 150 wrapping the air inlet along the circumferential direction of the air inlet. It should be understood that the first elastic pad 150 may be made of various materials, such as foam, elastic glue, etc.

For making the utility model discloses a battery cooling system can easily make the shaping the utility model discloses an in the embodiment, air inlet duct 110 is blow molding's plastic construction, and it has simple structure, the simple advantage of shaping.

As shown in fig. 1, the present invention further provides a vehicle body structure, which includes a rear floor 300, a rear seat cushion 400, a battery pack 200 and the above battery heat dissipation system; the rear floor 300 and the battery pack 200 are fixedly arranged respectively; the air inlet duct 110 of the battery cooling system is fixedly arranged on the rear floor 300; the rear seat cushion 400 is disposed on the rear floor 300, a receiving groove extending in the air flowing direction is formed at the bottom of the rear seat cushion 400, and the air inlet duct 110 is disposed in the receiving groove. Because the bottom of back row seatpad 400 is equipped with the holding tank, installs air inlet duct 110 in the holding tank, can satisfy the air inlet demand with minimum arrangement space, is favorable to the spatial layout of whole car.

It should be understood that the air inlet duct 110 may be directly installed in the receiving groove of the rear seat cushion 400, but in order to prevent the rear seat cushion and the passenger from pressing the air inlet duct 110 to be deformed, in one embodiment of the present invention, as shown in fig. 5 to 7, the vehicle body structure includes a seat cushion metal plate 500 and a second elastic pad 610; the seatpad panel beating 500 is fixed set up in the holding tank and with the back floor 300 between form installation space, the air inlet duct 110 be located installation space and with seatpad panel beating 500 fixed connection, second cushion 610 sets up between air inlet duct 110 and seatpad panel beating 500, second cushion 610 can play and reduce the relative vibration between air inlet duct 110 and the seatpad panel beating 500 to improve the NVH performance of whole car.

Further, air inlet grille 140 is located the holding tank and sets up with the air intake interval, and the benefit of setting up like this is: on one hand, the installation of the air inlet grille 140 and the air inlet duct 110 is convenient, and on the other hand, the mutual collision between the air inlet grille 140 and the air inlet duct 110 can be completely avoided, so that the air inlet duct 110 is better protected.

In order to facilitate the assembly of air inlet grille 140, in the utility model discloses an in an embodiment, as shown in fig. 7 and fig. 8, the first cushion 150 of the cotton material of bubble encloses into the round and pastes the air intake department at air inlet duct 110, air inlet grille 140 and air inlet duct 110 not lug connection, air inlet grille 140 passes through the buckle joint to the card hole of seatpad panel beating 500 in, the rethread inflation is detained and is further fastened on seatpad panel beating 500, and the second cushion 610 of the cotton material of bubble is pasted to the upper surface of air inlet duct 110, then the rethread inflation is detained and is fixed on seatpad panel beating 500.

In order to further improve the supporting force of the seat cushion metal plate 500 to the rear seat cushion 400 and the passenger, the utility model discloses an in one embodiment, the seat cushion metal plate 500 is equipped with the strengthening rib.

In order to better reduce the vibration noise, in an embodiment of the present invention, the body structure includes a third elastic pad 620 disposed between the air inlet duct 110 and the rear floor 300, and it should be understood that the third elastic pad 620 may be made of various materials, such as foam, elastic glue, etc.

Further, as shown in fig. 2, the foaming surface of the rear seat cushion 400 protrudes from the notch of the receiving groove in the direction of the air flow, so that the air inlet grill 140 disposed in the receiving groove can be prevented from being stepped on by the rear passenger by mistake.

The present invention will be explained with reference to a specific embodiment of the present invention.

The utility model discloses an in the embodiment, the material of air inlet duct 110 is the plastics material, and forming process is the blowing, and the one deck foaming sponge of pasting (second cushion 610 promptly) of air inlet duct 110 to fix to seatpad panel beating 500 through four plastics expansions, make the foaming sponge be located between air inlet duct 110 and the seatpad panel beating 500. The material of bubble cotton is the PU foaming, and thickness is 3mm, and is compressible, pastes on the upper surface of air inlet duct 110 through 3M is sticky, plays the effect that reduces vibration, gives sound insulation and antifriction between air inlet duct 110 and seatpad panel beating 500.

The seatpad panel beating 500 is steel, and thickness is 2mm, through bolted connection on back floor 300, plays the effect of supporting back row seat 400, and its holding surface is along with the profile design of air inlet duct 110, and local muscle that plays is strengthened, and the design requirement can bear the impact of dummy under certain acceleration. The air inlet duct 110 is fixed to the seat cushion metal plate 500 by four plastic expansion buttons.

Fig. 6 to 8 show the matching structure of the air inlet duct 110 and the air inlet grille 140, wherein a circle of foam (i.e. the first elastic cushion 150) is adhered to the air inlet of the air inlet duct 110, the air inlet grille 140 is clamped to the seat cushion sheet metal 500 by two expansion buckles and two buckles, and the air inlet grille 140 and the air inlet duct 110 form a corresponding relationship in the X direction of the vehicle.

A carpet (i.e., a third elastic pad 620) is laid on the rear floor 300 to ensure the NVH performance of the whole vehicle.

As shown in fig. 2, the end surface of the air intake grille 140 at the most front portion in the vehicle X direction is located 10mm behind the foamed surface of the rear seat cushion 400, so that it is possible to prevent erroneous stepping.

It can be known from the above-mentioned specific embodiments that the vehicle body structure of the present invention has at least the following advantages:

because the mode of installing air inlet duct 110 in the holding tank of back row seatpad 400 is adopted, consequently satisfy the air inlet demand with minimum arrangement space, be favorable to the spatial layout of whole car. The air inlet duct 110 is designed flat on the premise of ensuring the cross-sectional area, and the comfort of the rear seat 400 can be ensured. The air inlet duct 110 can be easily manufactured by blow molding of plastic, and has a simple structure and a simple formation. The whole air inlet duct 110 is wrapped by three elastic cushions, so that the NVH performance is very good. The air inlet of the whole heat dissipation system is positioned at the middle lower part of the rear seat cushion 400, the attention of passengers is low, and the air inlet grille 140 is used for decoration, so that the appearance is exquisite and attractive.

The utility model also provides a vehicle, this vehicle includes foretell body structure.

The utility model discloses a vehicle is the same with the advantage that above-mentioned battery cooling system, above-mentioned automobile body structure had for prior art, no longer gives unnecessary details here.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical idea scope of the present invention, it is possible to provide a solution of the present invention with a plurality of simple modifications to avoid unnecessary repetition, and the present invention is not described separately for various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims

1. The battery cooling system is characterized by comprising an air inlet duct (110), an air outlet duct (120), a fan (130) and an air inlet grille (140);

one end of the air inlet duct (110) is an air inlet, and the other end of the air inlet duct is communicated with the box body of the battery pack (200);

one end of the air outlet channel (120) is an air outlet, and the other end of the air outlet channel is communicated with the box body of the battery pack (200);

the fan (130) is arranged in the air outlet channel (120) or the air inlet channel (110) to guide air to flow from the air inlet to the air outlet;

the air intake grille (140) is disposed at the air intake and configured to filter dust and/or moisture in the air.

2. The battery heat dissipation system of claim 1, comprising a first resilient pad (150) surrounding the air inlet along a circumference of the air inlet.

3. The battery heat dissipation system of claim 1 or 2, wherein the air inlet duct (110) is a blow molded plastic structure.

4. A vehicle body structure characterized by comprising a rear floor panel (300), a rear seat cushion (400), a battery pack (200), and the battery heat dissipation system of any one of claims 1 to 3;

the rear floor (300) and the battery pack (200) are respectively and fixedly arranged;

the air inlet duct (110) of the battery cooling system is fixedly arranged on the rear floor (300);

back row seat pad (400) set up on back floor (300), the bottom of back row seat pad (400) is equipped with the holding tank that extends along the air flow direction, air inlet duct (110) set up in the holding tank.

5. The vehicle body structure of claim 4, wherein the vehicle body structure comprises a seat cushion sheet metal (500) and a second resilient pad (610); seatpad panel beating (500) are fixed set up in the holding tank and with form installation space between back floor (300), air inlet duct (110) are located in the installation space and with seatpad panel beating (500) fixed connection, second cushion (610) set up air inlet duct (110) with between seatpad panel beating (500).

6. The vehicle body structure of claim 5, wherein the air intake grille (140) is positioned in the receiving groove and spaced apart from the air intake opening.

7. The vehicle body structure according to claim 6, characterized in that the air inlet grille (140) is connected with the seat cushion sheet metal (500) in a matched manner through a clamping structure, and/or the seat cushion sheet metal (500) is provided with a reinforcing rib.

8. The vehicle body structure according to claim 4, characterized in that it comprises a third elastic pad (620) arranged between the air intake duct (110) and the rear floor (300).

9. The vehicle body structure according to any one of claims 4 to 8, wherein the foamed surface of the rear seat cushion (400) protrudes from the notch of the accommodation groove in the direction of air flow.

10. A vehicle, characterized in that the vehicle comprises a body structure according to any one of claims 4-9.