CN215644658U - Battery cooling device of electric automobile - Google Patents
Battery cooling device of electric automobile Download PDFInfo
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- CN215644658U CN215644658U CN202122271758.7U CN202122271758U CN215644658U CN 215644658 U CN215644658 U CN 215644658U CN 202122271758 U CN202122271758 U CN 202122271758U CN 215644658 U CN215644658 U CN 215644658U
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- rechargeable battery
- battery pack
- pipe
- electric automobile
- cooling device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a battery cooling device of an electric automobile, which comprises a rechargeable battery pack, wherein the front end of the rechargeable battery pack is the front end of the electric automobile when the electric automobile runs, the front end of the rechargeable battery pack is provided with a wind gathering cover, the rear end of the rechargeable battery pack is provided with a communicating pipe, a temperature sensor is arranged in the rechargeable battery pack, the rechargeable battery pack comprises a plurality of battery units which are longitudinally arranged, a ventilating pipe is arranged between every two adjacent battery units, one end of the ventilating pipe is communicated with the wind gathering cover, the other end of the ventilating pipe is communicated with the communicating pipe, the end part of the ventilating pipe is provided with a fan, and the two ends of the communicating pipe are both communicated with the outside of the electric automobile; the fan control device further comprises a control unit, and the control unit is electrically connected with the temperature sensor and the fan respectively. The rechargeable battery pack is initially cooled.
Description
Technical Field
The utility model relates to the technical field of electric automobiles, in particular to a battery cooling device of an electric automobile.
Background
In the present electric vehicle driven by an electric motor, driving power of the electric motor is supplied from a rechargeable battery mounted on the vehicle, and the rechargeable battery is composed of a plurality of battery cells connected in series or in parallel, and a battery cell group is composed of a plurality of battery modules connected in series, and in order to safely use the rechargeable battery, heat generated from the rechargeable battery should be efficiently dissipated. If the heat dissipation is not sufficiently performed, temperature variation may occur between the respective battery cell groups, and thus the battery module may not generate a desired amount of energy for motor driving.
In addition, when the internal temperature of the battery increases due to heat generated from the rechargeable secondary battery, abnormal reactions may occur therein, and the charge and discharge performance of the rechargeable secondary battery may be deteriorated accordingly, and the life of the rechargeable secondary battery may become short; in order to solve the technical problems, the heat generated by rechargeable storage is reduced by a water cooling mode and a radiator which is matched with the water cooling mode in the electric automobile, however, the cooling water in the electric automobile is increased, the load of the electric automobile is increased, and meanwhile, the weight of the automobile is increased by elements such as the radiator, and the cruising ability of the automobile is affected.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings in the prior art, an object of the present invention is to provide a battery cooling device for an electric vehicle, which can reduce the heat generated by rechargeable storage, maintain the weight of the electric vehicle, and does not affect the cruising ability of the vehicle.
The technical scheme adopted by the utility model is as follows:
the battery cooling device for the electric automobile comprises a rechargeable battery pack, wherein the front end of the rechargeable battery pack is the front end of the electric automobile when the electric automobile runs, a wind gathering cover is arranged at the front end of the rechargeable battery pack, a communicating pipe is arranged at the rear end of the rechargeable battery pack, a temperature sensor is arranged in the rechargeable battery pack, the rechargeable battery pack comprises a plurality of battery units which are longitudinally arranged, a ventilating pipe is arranged between every two adjacent battery units, one end of the ventilating pipe is communicated with the wind gathering cover arranged on the wind gathering cover, the other end of the ventilating pipe is communicated with the communicating pipe, a fan is arranged at the end part of the ventilating pipe, and both ends of the communicating pipe are communicated with the outside of the electric automobile; the fan control device further comprises a control unit, and the control unit is electrically connected with the temperature sensor and the fan respectively.
When the electric automobile normally runs, outside air enters the air collecting cover from the front end of the electric automobile, then is introduced into the ventilation pipe through the air collecting opening in the air collecting cover, and then is converged into the communication pipe through the ventilation pipes, and the communication pipe leads the air with heat out of the electric automobile, so that the rechargeable battery pack has the function of preliminary cooling;
when the temperature sensor detects the temperature value in the rechargeable battery pack, the temperature value is transmitted to the control unit in real time, when the temperature value exceeds a set value, the control unit starts the fan to rotate, air circulation is accelerated, the temperature of the battery unit is reduced, and the rotating speed of the fan is controlled to be accelerated or reduced by the control unit according to the temperature value in the rechargeable battery pack until the rechargeable battery pack stops rotating.
Furthermore, a cold air pipe is arranged on the wind gathering cover, a cavity communicated with the cold air pipe is arranged in the wind gathering cover, the wind gathering port penetrates through the cavity, and a vent hole communicated with the cavity is formed in the side wall of the wind gathering port.
When the scheme is used, the air conditioner carried by the electric automobile is used for conveying cold air into the cold air pipe, when the temperature value of the rechargeable battery pack exceeds a set value, cold air arranged on the air collecting cover and the automobile air conditioner is connected, and the fan sucks the cold air of the air conditioner into the ventilation pipe through the air collecting opening, so that the cooling of the battery unit is accelerated.
Furthermore, the battery unit comprises a plurality of battery modules which are transversely arranged, and the side surface of each battery module is tightly attached to the outer side of the ventilation pipe.
By the design, the side face of each battery module is tightly attached to the outer side of the ventilation pipe, so that heat of the battery module can be well transferred to the ventilation pipe, and the heat is taken away by air flowing.
Further, the ventilation pipe is formed by welding steel plates.
Design like this, through steel sheet welding formation ventilation pipe, utilize steel sheet heat conductivity characteristics, on can be fine conducting the heat of battery module to the ventilation pipe, utilize the air flow to take away the heat.
Further, still include the drain pan that is used for holding rechargeable battery package, be equipped with rather than articulated upper cover on the drain pan.
Design like this, the cooperation through drain pan and upper cover forms the container that can hold rechargeable battery package, and simultaneously, the drain pan is articulated mutually with the upper cover, conveniently opens the upper cover, changes the rechargeable battery package in the drain pan.
Further, the bottom shell is made of a steel plate material. The bottom shell is made of steel plates, the heat conduction characteristics of the steel plates are utilized, the heat of the battery module can be well conducted to the ventilating pipe through the bottom shell, and the heat is taken away through air flowing.
Compared with the prior art, the utility model has the following beneficial effects:
according to the scheme, the wind gathering cover is arranged at the front end of the rechargeable battery pack, and the wind gathering port on the wind gathering cover corresponds to the front grille of the automobile, so that air circulation can be guaranteed, and impurities (leaves, paper scraps and the like) are blocked outside the grille; meanwhile, the wind-gathering cover is bowl-shaped, and can introduce air flow into the wind-gathering opening, so that more air can enter the ventilation pipe;
for further cooling, be connected with the air conditioner in the electric automobile through the cold air duct on the wind-collecting cover, the fan through the ventilation pipe rear end introduces air conditioning to the ventilation pipe in, make the temperature in the rechargeable battery package reduce rapidly, this scheme utilizes the air flow and the cooling air cooperation to realize the battery module cooling in the rechargeable battery package, avoid the high temperature to lead to battery module spontaneous combustion, compare prior art, this scheme has only increased the fan, do not influence the weight of electric automobile self, can keep the original duration of electric automobile.
Drawings
Fig. 1 is a schematic structural diagram of a battery cooling device of an electric vehicle according to the present invention.
Fig. 2 is a cross-sectional view taken at a-a in fig. 1.
Fig. 3 is a schematic structural diagram of a wind collecting cover in the electric vehicle battery cooling device of the present invention.
In the figure: the rechargeable battery pack comprises a rechargeable battery pack 1, a battery module 2, a ventilation pipe 3, a fan 4, a battery unit 5, a wind-collecting cover 6, a cavity 7, a wind-collecting opening 8, a cold air pipe 9, a communication pipe 10, a bottom shell 11, an upper cover 12 and a vent hole 13.
Detailed Description
The utility model will be further explained with reference to the drawings and the embodiments.
In this embodiment: referring to fig. 1 to 3, the electric vehicle battery cooling device includes a rechargeable battery pack 1, the front end of the rechargeable battery pack 1 is the front end of the electric vehicle when the electric vehicle runs, a wind gathering cover 6 is arranged at the front end of the rechargeable battery pack 1, a communicating pipe 10 is arranged at the rear end of the rechargeable battery pack 1, a temperature sensor is arranged in the rechargeable battery pack 1, the rechargeable battery pack 1 includes a plurality of battery units 5 arranged longitudinally, a ventilation pipe 3 is arranged between adjacent battery units 5, one end of the ventilation pipe 3 is communicated with a wind gathering opening 8 arranged in the wind gathering cover 6, the other end is communicated with the communicating pipe 10, a fan 4 is arranged at the end, and both ends of the communicating pipe 10 are communicated with the outside of the electric vehicle; the fan control device further comprises a control unit which is electrically connected with the temperature sensor and the fan 4 respectively.
According to the scheme, when the electric automobile normally runs, external air enters the air collecting cover 6 from the front end of the electric automobile, the air is introduced into the ventilation pipes 3 through the air collecting openings 8 in the air collecting cover 6 and then is converged into the communication pipes 10 through the ventilation pipes 3, and the communication pipes 10 lead the air with heat out of the electric automobile, so that the rechargeable battery pack 1 is subjected to a preliminary cooling effect;
and when the temperature sensor detects the temperature value in the rechargeable battery pack 1, the temperature value is transmitted to the control unit in real time, when the temperature value exceeds a set value, the control unit starts the fan 4 to rotate, the air circulation is accelerated, the temperature of the battery unit 5 is reduced, and the rotating speed of the fan 4 is controlled to be accelerated or reduced by the control unit according to the temperature value in the rechargeable battery pack 1 until the rechargeable battery pack stops rotating.
Preferably, the air collecting cover 6 is provided with a cold air pipe 9, the air collecting cover 6 is internally provided with a cavity 7 communicated with the cold air pipe 9, the air collecting opening 8 penetrates through the cavity 7, and the side wall of the air collecting opening 8 is provided with a vent hole 13 communicated with the cavity 7.
When the scheme is used, the air conditioner of the electric automobile is utilized to convey cold air into the cold air pipe 9, when the temperature value of the rechargeable battery pack 1 exceeds a set value, the cold air arranged on the air collecting cover 6 and the automobile air conditioner is connected, and the fan 4 sucks the cold air of the air conditioner into the ventilation pipe 3 through the air collecting opening 8, so that the cooling of the battery unit 5 is accelerated.
Preferably, the battery unit 5 includes a plurality of battery modules 2 arranged in the lateral direction, and the side surface of each battery module 2 is closely attached to the outside of the ventilation duct 3.
Design like this, through every battery module 2's side and ventilation pipe 3 outside hug closely for battery module 2's heat can be fine transmit to ventilation pipe 3 on, reuse air flow takes away the heat.
Preferably, the vent tube 3 is formed by welding steel plates.
Design like this, through steel sheet welding formation ventilation pipe 3, utilize steel sheet heat conductivity characteristics, on can be fine conducting the heat of battery module 2 to ventilation pipe 3, utilize the air flow to take away the heat.
Preferably, the rechargeable battery pack also comprises a bottom shell 11 for accommodating the rechargeable battery pack 1, and an upper cover 12 hinged with the bottom shell 11 is arranged on the bottom shell 11.
Design like this, form through the cooperation of drain pan 11 with upper cover 12 and can hold rechargeable battery package 1's container 1, simultaneously, drain pan 11 is articulated mutually with upper cover 12, conveniently opens upper cover 12, changes rechargeable battery package 1 in the drain pan 11.
Preferably, the bottom case 11 is made of a steel plate. With drain pan 11 adoption steel sheet material, utilize steel sheet heat conductivity characteristics, can be fine with battery module 2's heat through drain pan 11 heat conduction to ventilation pipe 3 on, utilize the air current to take away the heat.
According to the scheme, the wind gathering cover 6 is arranged at the front end of the rechargeable battery pack 1, and the wind gathering port 8 on the wind gathering cover 6 corresponds to the front grille of the automobile, so that air circulation can be guaranteed, and impurities (leaves, paper scraps and the like) are blocked outside the grille; meanwhile, the wind-gathering cover 6 is bowl-shaped and can introduce air flow into the wind-gathering opening 8, so that more air can enter the ventilation pipe 3, because the side surface of the battery module 2 in the rechargeable battery pack 1 is tightly attached to the outer side of the ventilation pipe 3, heat generated by each battery module 2 can be conducted to the ventilation pipe 3, the air flow in the ventilation pipe 3 can take away the heat generated by the battery module 2, and in order to accelerate the air flow, the fan 4 at the rear end of the ventilation pipe 3 is started to accelerate the air flow;
in order to regard as preferred cooling, be connected with the air conditioner in the electric automobile through cold air duct 9 on the fan housing 6, fan 4 through the ventilation pipe 3 rear end introduces air conditioning into ventilation pipe 3, make the temperature in rechargeable battery package 1 reduce rapidly, this scheme utilizes air flow and air conditioning cooperation to realize the battery module 2 cooling in rechargeable battery package 1, avoid the high spontaneous combustion of battery module 2 that leads to of temperature, compare prior art, this scheme has only increased fan 4, do not influence the weight of electric automobile self, can keep the original duration of electric automobile.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all that should be covered by the claims of the present invention.
Claims (6)
1. The electric automobile battery cooling device is characterized by comprising a rechargeable battery pack (1), wherein the front end of the rechargeable battery pack (1) is the front end of an electric automobile when the electric automobile runs, a wind gathering cover (6) is arranged at the front end of the rechargeable battery pack (1), a communicating pipe (10) is arranged at the rear end of the rechargeable battery pack (1), a temperature sensor is arranged in the rechargeable battery pack (1), the rechargeable battery pack (1) comprises a plurality of longitudinally arranged battery units (5), a ventilating pipe (3) is arranged between every two adjacent battery units (5), one end of the ventilating pipe (3) is communicated with a wind gathering port (8) arranged in the wind gathering cover (6), the other end of the ventilating pipe is communicated with the communicating pipe (10), a fan (4) is arranged at the end part of the ventilating pipe, and two ends of the communicating pipe (10) are both communicated with the outside of the electric automobile; the fan control device further comprises a control unit, and the control unit is electrically connected with the temperature sensor and the fan (4) respectively.
2. The battery cooling device for the electric automobile according to claim 1, wherein the air collecting hood (6) is provided with a cold air pipe (9), the air collecting hood (6) is provided with a cavity (7) communicated with the cold air pipe (9), the air collecting opening (8) penetrates through the cavity (7), and the side wall of the air collecting opening (8) is provided with a vent hole (13) communicated with the cavity (7).
3. The battery cooling device for the electric vehicle according to claim 1, wherein the battery unit (5) comprises a plurality of battery modules (2) arranged transversely, and the side surface of each battery module (2) is closely attached to the outside of the ventilation pipe (3).
4. The battery cooling device for the electric vehicle according to claim 3, wherein the vent pipe (3) is formed by welding a steel plate.
5. The battery cooling device for the electric vehicle according to claim 1, further comprising a bottom case (11) for accommodating the rechargeable battery pack (1), wherein the bottom case (11) is provided with an upper cover (12) hinged thereto.
6. The battery cooling device for the electric vehicle according to claim 5, wherein the bottom shell (11) is made of a steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122271758.7U CN215644658U (en) | 2021-09-18 | 2021-09-18 | Battery cooling device of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122271758.7U CN215644658U (en) | 2021-09-18 | 2021-09-18 | Battery cooling device of electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215644658U true CN215644658U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122271758.7U Active CN215644658U (en) | 2021-09-18 | 2021-09-18 | Battery cooling device of electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215644658U (en) |
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2021
- 2021-09-18 CN CN202122271758.7U patent/CN215644658U/en active Active
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