CN216213797U

CN216213797U - Heat radiation structure of battery box of new energy electric automobile

Info

Publication number: CN216213797U
Application number: CN202122690317.0U
Authority: CN
Inventors: 王际东; 陈果; 陈有为
Original assignee: Beijing Nuofei New Energy Technology Co ltd
Current assignee: Beijing Nuofei New Energy Technology Co ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-04-05
Anticipated expiration: 2031-11-05

Abstract

The utility model relates to the field of new energy automobiles, in particular to a heat dissipation structure of a battery box of a new energy electric automobile, wherein a protective cover is fixedly arranged on a bottom plate, an inner heat dissipation mechanism is arranged on the upper surface of the bottom plate and is positioned in the protective cover, a cross frame is fixedly arranged on the upper surface of the bottom plate, the cross frame is hollow, a circulation pipeline is arranged in the cross frame at zigzag intervals, inner heat conduction materials are filled around the circulation pipeline in the cross frame, a circulation mechanism is arranged on the bottom plate and is communicated with the circulation mechanism, a battery module is fixedly arranged at a right angle part outside the cross frame, the bottom plate, the protective cover, the inner heat dissipation mechanism and the circulation mechanism are arranged, the heat among the battery modules is taken out through the cooperation of the circulation pipeline and the circulation mechanism, the heat among the battery modules is obviously reduced, the potential safety hazard is reduced, the cross frame is arranged, the circulation pipeline is protected, and the liquid in the circulation pipeline is prevented from leaking, damaging the battery module.

Description

Heat radiation structure of battery box of new energy electric automobile

Technical Field

The utility model relates to the field of new energy automobiles, in particular to a heat dissipation structure of a battery box of a new energy electric automobile.

Background

The new energy automobile widely adopts a plurality of groups of battery modules for power supply, the battery modules are fixedly protected through a battery box, the battery is easy to generate high temperature in the long-term power supply process, thermal diffusion is caused (the phenomenon that other battery monomers caused by thermal runaway in a battery pack or a system are connected to generate thermal runaway is called thermal diffusion), the overall service performance of the battery is influenced, air suction type heat dissipation is generally adopted in the prior art, so that hot air in the battery box can be quickly exhausted, external air flow with lower temperature is led in to circularly take away heat on the surface of the battery, active temperature control is realized, however, the high temperature generated at the adjacent position of the battery pack is difficult to dissipate heat, high-temperature accumulation is easy to cause, thermal diffusion occurs, potential safety hazards are generated, and the heat dissipation structure of the battery box of the new energy electric automobile is provided aiming at the existing problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that high temperature generated at the adjacent position of a battery pack is difficult to dissipate heat in the prior art, and provides a heat dissipation structure of a battery box of a new energy electric automobile.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the heat dissipation structure of the battery box of the new energy electric automobile comprises a bottom plate, wherein a protective cover is fixedly arranged on the bottom plate;

interior heat dissipation mechanism, interior heat dissipation mechanism installs the bottom plate upper surface just is located in the protection casing, interior heat dissipation mechanism includes cross frame, circulating line, interior heat conduction material, cross frame fixed mounting be in the bottom plate upper surface, cross frame cavity, circulating line tortuous interval arrangement is in the cross frame, in the cross frame the circulating line is filled around there is interior heat conduction material, install circulation mechanism on the bottom plate, the circulating line with circulation mechanism intercommunication, cross frame outside right angle department fixed mounting has the battery module, fixed mounting has the upper cover plate on the protection casing.

Preferably, the circulating mechanism comprises a fixing frame, a water tank and a circulating water pump, the fixing frame is fixedly installed on the inner wall of the protective cover, the water tank is fixedly installed on the fixing frame, the circulating water pump is fixedly installed on the fixing frame, and the water tank and the circulating water pump are communicated in a circulating mode through the circulating pipeline.

Preferably, the outside of the water tank is provided with a heat dissipation plate.

Preferably, still include ventilation mechanism, ventilation mechanism installs on the bottom plate, ventilation mechanism installs cross frame keeps away from one side of circulation mechanism, the ventilation hole has been seted up respectively to the protection casing both sides, ventilation mechanism includes mounting panel, ventilating fan, mounting panel fixed mounting is in on the bottom plate, spaced apart mounting hole that is equipped with on the mounting panel, ventilating fan fixed mounting be in the mounting hole, ventilation mechanism with there is certain space between the battery module.

Preferably, still include outer heat dissipation mechanism, outer heat dissipation mechanism installs on the cross frame, outer heat dissipation mechanism includes limit frame, outer heat conduction material, the limit frame is installed the outside of battery module and with cross frame fixed connection, outer heat conduction material is filled in the limit frame, the limit frame reaches the cross frame with the protection casing inner wall all has a determining deviation.

The utility model provides a heat dissipation structure of a battery box of a new energy electric automobile, which has the beneficial effects that:

set up bottom plate, protection casing, interior heat dissipation mechanism, circulation mechanism, cooperate through circulating line and circulation mechanism jointly, take out the heat between the battery module, show the heat that reduces between the battery module, reduce the thermal diffusion potential safety hazard to through setting up the cross frame, the protection circulating line avoids the liquid in the circulating line to reveal, damages the battery module.

Drawings

Fig. 1 is a schematic partial sectional structural view of a heat dissipation structure of a battery box of a new energy electric vehicle according to the present invention.

Fig. 2 is a schematic diagram of an internal structure of a heat dissipation structure of a battery box of a new energy electric vehicle according to the present invention.

Fig. 3 is a schematic view of an internal structure of a heat dissipation structure of a battery box of a new energy electric vehicle according to the present invention.

In the figure: the solar water heater comprises a bottom plate 1, a protective cover 2, a vent hole 21, an upper cover plate 3, an inner heat dissipation mechanism 4, a cross frame 41, a circulating pipeline 42, an inner heat conduction material 43, a circulating mechanism 5, a fixing frame 51, a water tank 52, a heat dissipation plate 521, a circulating water pump 53, a battery module 6, a ventilation mechanism 7, an installation plate 71, a ventilation fan 72, an outer heat dissipation mechanism 8, a side frame 81 and an outer heat conduction material 82.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example 1

Referring to fig. 1-3, a heat dissipation structure of a battery box of a new energy electric vehicle comprises a bottom plate 1, wherein a protective cover 2 is fixedly installed on the bottom plate 1;

the inner heat dissipation mechanism 4 is installed on the upper surface of the base plate 1 and located in the protective cover 2, the inner heat dissipation mechanism 4 mainly discharges heat between adjacent battery modules 6 and reduces heat accumulation between the battery modules 6, the inner heat dissipation mechanism 4 comprises a cross frame 41, a circulation pipeline 42 and an inner heat conduction material 43, the cross frame 41 is fixedly installed on the upper surface of the base plate 1, the cross frame 41 is hollow, the circulation pipeline 42 is arranged in the cross frame 41 at intervals in a zigzag manner, the circulation pipeline 42 is arranged in the cross frame 41 in a reasonable layout manner and is communicated with the water tank 52 and the circulation water pump 53 through the cross frame 41, the circulation pipeline 42 is mainly filled with a liquid heat absorption material which can be circulated by water, cooling liquid and the like, the inner heat conduction material 43 is filled around the circulation pipeline 42 in the cross frame 41, the inner heat conduction material 43 can be liquid, and can also be solid powder, such as heat conduction silicone grease and the like, the heat generated by the battery module 6 is absorbed by the internal heat conducting material 43 through the cross frame 41 and is taken out by the cooling liquid circulating in the circulating pipeline 42, the circulating mechanism 5 is installed on the bottom plate 1, the circulating pipeline 42 is communicated with the circulating mechanism 5, the battery module 6 is fixedly installed at the right angle position outside the cross frame 41, the upper cover plate 3 is fixedly installed on the protective cover 2, the upper cover plate 3 ensures the sealing of the cross frame 41, thereby ensure that interior heat conduction material 43 in the cross frame 41 does not reveal, circulation mechanism 5 includes mount 51, water tank 52, circulating water pump 53, and mount 51 fixed mounting is on the protection casing 2 inner wall, and water tank 52 fixed mounting is on mount 51, and circulating water pump 53 fixed mounting is on mount 51, and water tank 52, circulating water pump 53 pass through circulating line 42 circulation intercommunication, and heating panel 521 has been seted up to the water tank 52 outside, helps the liquid heat dissipation in the water tank 52.

Set up bottom plate 1, protection casing 2, interior heat dissipation mechanism 4, circulation mechanism 5, cooperate jointly through circulating line 42 and circulation mechanism 5, take out the heat between the battery module 6, show the heat that reduces between the battery module 6, reduce the thermal diffusion potential safety hazard to through setting up cross frame 41, protection circulating line 42 avoids the liquid in the circulating line 42 to reveal, damages battery module 6.

Example 2

According to embodiment 1, in embodiment 1, the heat between the battery modules 6 is significantly reduced, the potential safety hazard of heat diffusion is reduced, and the cross frame 41 is arranged to protect the circulation pipe 42 and prevent the liquid in the circulation pipe 42 from leaking, however, the heat dissipation performance of the outer side of the battery modules 6 is poor, which is not favorable for high-performance use of the battery modules 6, and referring to fig. 1 to 3, as another preferred embodiment of the present invention, a ventilation mechanism 7 is further included on the basis of embodiment 1.

Ventilation mechanism 7 is installed on bottom plate 1, and ventilation mechanism 7 is installed in one side that the circulation mechanism 5 was kept away from to cross frame 41, and ventilation hole 21 has been seted up respectively to protection casing 2 both sides, and ventilation mechanism 7 includes mounting panel 71, ventilation fan 72, and mounting panel 71 fixed mounting is on bottom plate 1, mounting panel 71 both sides with the laminating of protection casing 2, the upper end and the laminating of upper cover plate 3, the mounting hole has been seted up at the interval on mounting panel 71, and ventilation fan 72 fixed mounting has certain space between ventilation mechanism 7 and the battery module 6 in the mounting hole.

The battery protection cover also comprises an outer heat dissipation mechanism 8, the outer heat dissipation mechanism 8 is arranged on the cross-shaped frame 41, the outer heat dissipation mechanism 8 comprises a side frame 81 and an outer heat conduction material 82, the side frame 81 is arranged on the outer side of the battery module 6 and is fixedly connected with the cross-shaped frame 41, the outer heat conduction material 82 is filled in the side frame 81, the outer heat conduction material 82 can be liquid or solid powder, such as heat conduction silicone grease and the like, the outer heat conduction material 82 absorbs the heat on the outer side of the battery module 6 through the side frame 81 and is brought out of the protection cover 2 by the wind passing through the gaps between the outer sides of the side frame 81 and the cross-shaped frame 41 and the inner wall of the protection cover 2, the side frame 81 and the cross-shaped frame 41 are at a certain interval with the inner wall of the protection cover 2, the wind pumped by the ventilation mechanism 7 passes through the gaps between the outer sides of the side frame 81 and the cross-shaped frame 41 and the inner wall of the protection cover 2 to take away the surface heat, and the ventilation mechanism 7 and the circulation mechanism 5 are positioned on two sides of the inner heat dissipation mechanism 4, the wind pumped by the ventilating fan 72 enters the protective cover 2 and then is blown to the water tank 52, the liquid in the auxiliary water tank 52 is cooled, and the side frame 81, the cross frame 41, the internal circulating pipeline 42 and the filled heat conducting material are arranged, so that the protective cover 2 can effectively absorb energy when being violently impacted, and the safety of the internal battery module is protected.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A heat dissipation structure of a battery box of a new energy electric automobile comprises a bottom plate (1), wherein a protective cover (2) is fixedly arranged on the bottom plate (1), and the heat dissipation structure is characterized by further comprising;

the inner heat dissipation mechanism (4), the inner heat dissipation mechanism (4) is arranged on the upper surface of the bottom plate (1) and is positioned in the protective cover (2), the internal heat dissipation mechanism (4) comprises a cross frame (41), a circulating pipeline (42) and an internal heat conduction material (43), the cross frame (41) is fixedly arranged on the upper surface of the bottom plate (1), the cross frame (41) is hollow, the circulation pipes (42) are arranged in the cross frame (41) at zigzag intervals, the periphery of the circulating pipeline (42) in the cross frame (41) is filled with an inner heat conduction material (43), a circulating mechanism (5) is arranged on the bottom plate (1), the circulating pipeline (42) is communicated with the circulating mechanism (5), the battery module (6) is fixedly mounted at the right angle of the outer side of the cross frame (41), and the upper cover plate (3) is fixedly mounted on the protective cover (2).

2. The heat dissipation structure of the battery box of the new energy electric vehicle according to claim 1, wherein the circulation mechanism (5) comprises a fixing frame (51), a water tank (52) and a circulation water pump (53), the fixing frame (51) is fixedly installed on the inner wall of the protective cover (2), the water tank (52) is fixedly installed on the fixing frame (51), the circulation water pump (53) is fixedly installed on the fixing frame (51), and the water tank (52) and the circulation water pump (53) are in circulation communication through the circulation pipeline (42).

3. The heat dissipation structure of the battery box of the new energy electric vehicle as claimed in claim 2, wherein a heat dissipation plate (521) is provided outside the water tank (52).

4. The heat dissipation structure of the battery box of the new energy electric vehicle according to claim 1, characterized by further comprising a ventilation mechanism (7), wherein the ventilation mechanism (7) is installed on the bottom plate (1), the ventilation mechanism (7) is installed on one side, away from the circulation mechanism (5), of the cross frame (41), the ventilation holes (21) are respectively formed in two sides of the protective cover (2), the ventilation mechanism (7) comprises a mounting plate (71) and a ventilation fan (72), the mounting plate (71) is fixedly installed on the bottom plate (1), the mounting plate (71) is provided with mounting holes at intervals, the ventilation fan (72) is fixedly installed in the mounting holes, and a certain gap is formed between the ventilation mechanism (7) and the battery module (6).

5. The heat dissipation structure of the battery box of the new energy electric vehicle according to claim 4, characterized by further comprising an outer heat dissipation mechanism (8), wherein the outer heat dissipation mechanism (8) is mounted on the cross frame (41), the outer heat dissipation mechanism (8) comprises a side frame (81) and an outer heat conduction material (82), the side frame (81) is mounted on the outer side of the battery module (6) and is fixedly connected with the cross frame (41), the outer heat conduction material (82) is filled in the side frame (81), and the side frame (81) and the cross frame (41) are spaced from the inner wall of the protective cover (2).