KR102477549B1 - Apparatus for Auxiliary Charging and Battery Cooling and Engine Block Cooling Using Wind Power In Electric Vehicle - Google Patents

Abstract

The present invention relates to a device for cooling an engine and a battery as well as charging a battery with electrical energy generated by using wind power coming in from the outside. A plurality of air ducts 10 installed inside the electric vehicle 1 to discharge air introduced from the outside through the first branch pipe 11 and the second branch pipe 12 while the vehicle is running; a wind power generator 40 generating and supplying electrical energy by rotation of a windmill fan 41 composed of a plurality of blades by the pressure of the air discharged from the first branch pipe 11 of the air duct 10; an air distributor (30) for sucking in the air exhausted from the second branch pipe (12) of the air duct (10) and injecting the air onto the surface of the battery pack (70); It includes a refrigerant compressor 50 that compresses the refrigerant with the electric energy supplied from the wind power generator 40 and circulates it through the refrigerant pipe 60 installed on the bottom of the battery pack 70.

Description

Apparatus for Auxiliary Charging and Battery Cooling and Engine Block Cooling Using Wind Power In Electric Vehicle}

The present invention relates to an electric vehicle, and more particularly, to a device for cooling an engine and a battery while charging a battery with electrical energy generated by using wind power introduced from the outside.

In general, an electric vehicle (EV) is an eco-friendly vehicle powered by electricity charged in a battery rather than driven by combustion of fossil fuel. Since it does not use fossil fuels, it has advantages such as little noise and exhaust gas emission, small breakdown, long lifespan, and easy operation. In addition, a hybrid electric vehicle (HEV) means driving a vehicle by efficiently combining two or more different types of power sources. A hybrid electric vehicle refers to a vehicle that obtains driving power by an engine using fuel such as gasoline or diesel and an electric motor.

These electric vehicles are necessarily equipped with high-voltage batteries that provide driving power for electric motors. The battery supplies necessary power while repeatedly charging and discharging while the vehicle is driving. In general, vehicles vary greatly in the driving environment, such as region, temperature, humidity, and air pressure, and charging and discharging of batteries in real environments differ from battery charging and discharging efficiencies in laboratory conditions. In addition, the charging and discharging efficiency of the battery is lowered at low temperature or high temperature, and the charging and discharging efficiency is lowered even in a high humidity environment.

Therefore, it is necessary to maintain the temperature of the battery within a certain temperature range capable of exhibiting the optimum performance of the battery. High-voltage batteries used in electric vehicles become hot during use. To this end, a device for controlling the temperature of the battery is installed in the battery system. Moreover, due to the nature of hybrid electric vehicles, the parts that generate the most heat are the engine, ECU, and battery pack. Moreover, severe heat from the battery pack may lead to a vehicle fire, resulting in loss of life and property.

As a prior art related to the present invention, a battery unit and a motor control unit cooling system of a hybrid electric vehicle of Patent Document 1 include a battery unit composed of a housing in which a plurality of battery cells are embedded; an air intake duct communicating with the battery unit and sucking in air from the vehicle; a discharge port of the battery unit provided to discharge the air sucked into the air intake duct from the battery unit; MCU inlet duct branching from the outlet to the motor control unit; a bypass duct branched from the discharge port to bypass the motor control unit; an MCU discharge duct through which the air discharged from the motor control unit passes; Disclosed is an integrated duct in which the MCU discharge duct and the bypass duct are integrated, and a blower fan installed in the integrated duct. However, according to the prior art, the air introduced from the air intake duct cools the battery unit after passing through the upper part of the MCU, and then passes through the lower part of the MCU and is discharged. There was a disadvantage that the battery unit could not be cooled evenly with the occurrence of

Republic of Korea Patent Registration No. 10-0802767 (2008.02.12., notice)

In order to solve the above problems, the present invention is to operate a generator using wind power of air introduced while an electric vehicle is running to generate electricity to charge a battery, and to cool an engine, an ECU, and a battery with the introduced air. It is purpose.

In order to achieve the above object, the present invention provides an auxiliary charging device using wind power and an engine and battery cooling device for an electric vehicle, which is installed in a plurality of parts inside the electric vehicle and removes air introduced from the outside while the vehicle is running. An air duct discharged through the engine and the second branch pipe; a wind power generator generating and supplying electrical energy by rotation of a windmill fan composed of a plurality of blades by the pressure of the air discharged from the first branch pipe of the air duct; an air distributor for sucking air discharged from the second branch pipe of the air duct and passing through surfaces of the engine and ECU and injecting air onto the surface of the battery pack; It is characterized by providing an auxiliary charging and engine and battery cooling device using wind power in an electric vehicle including a refrigerant compressor that compresses refrigerant with electrical energy supplied from the wind power generator and circulates it through a refrigerant pipe installed on the bottom of the battery pack.

In addition, in the present invention, the third branch pipe is branched from the air duct to inject air to the bottom of the engine and the ECU.

In addition, in the present invention, the battery can be charged after converting the electrical energy generated by the wind turbine into battery charging power.

In addition, in the present invention, the air distributor may be provided with a plurality of injection tubes, respectively, installed on the surface of the battery pack.

Also, in the present invention, a cooling fan for blowing air to the engine and the ECU may be configured on one side of the windmill fan.

Further, in the present invention, the air duct may rotate a cooling fan installed on at least one of the front, side, upper, and lower surfaces of the engine and the ECU and a windmill fan integrally equipped with a wind generator.

According to the present invention, electric energy can be generated using air introduced from the outside while the electric vehicle is running to charge the battery or cool the battery pack by compressing the refrigerant, and the air introduced from the outside can be used to cool the engine and the ECU. It can cool the surface of the battery pack and the surface of the battery pack, maximizing the energy efficiency of the electric vehicle and preventing fires caused by overheating of the engine or battery pack.

1 is a block diagram showing an auxiliary charging system using wind power and an engine and battery cooling device in an electric vehicle as an embodiment according to the present invention.
2 is a schematic side view showing auxiliary charging using wind power and installation of an engine and battery cooling device in an electric vehicle according to the present invention.
3 is a plan schematic view showing auxiliary charging using wind power and installation of an engine and battery cooling device in an electric vehicle according to the present invention.
4 is a schematic diagram showing an auxiliary charging system using wind power and an engine and battery cooling device in an electric vehicle according to another embodiment of the present invention.
5 is a schematic diagram showing an auxiliary charging system using wind power and an engine and battery cooling device in an electric vehicle as another embodiment according to the present invention.
6 is a schematic diagram showing an auxiliary charging system using wind power and an engine and battery cooling device in an electric vehicle as another embodiment according to the present invention.

Hereinafter, an embodiment related to auxiliary charging using wind power and an engine and battery cooling device in an electric vehicle according to the present invention will be described in detail with reference to the accompanying drawings.

In FIG. 1 , a plurality of air ducts 10 are installed inside the electric vehicle 1 . That is, when the engine room 2 is installed in front of the electric vehicle 1, the air duct 10 is installed in the front of the electric vehicle 1, and the engine room 2 is installed in the rear of the electric vehicle 1. When installed, the air duct 10 is installed on the side of the electric vehicle 1. Therefore, the air duct 10 is preferably installed at a location where air easily flows in while the electric vehicle 1 is running or where air resistance can be minimized, and is located in the engine room 2 of the electric vehicle 1. Installation location will vary accordingly. Furthermore, the air duct 10 installed inside the electric vehicle 1 is installed so that a single inlet through which air is introduced from the outside is exposed on the front or side surface of the electric vehicle 1. In addition, the air duct 10 may include a plurality of outlets through which air introduced from the inlet is discharged through a plurality of branch pipes.

The wind power generator 40 generates electrical energy by the pressure of the air discharged from the first branch pipe 11 of the air duct 10 . The wind power generator 40 is shaft-coupled with a rotational shaft of a windmill fan 41 made of blades rotating by air pressure. And it includes a stator and a rotor that generate electric energy in electromagnetic force by the rotation of the windmill fan (41). The electrical energy generated by the wind power generator 40 may be output as charging power of a battery through a converter or output as driving power of the refrigerant compressor 50 of the air conditioner. In addition, a cooling fan 42 is configured to one side of the windmill fan 41, that is, toward the engine and ECU 20, and rotates along with the rotation of the windmill fan 41 to blow air to the engine and ECU 20.

The air distributor 30 sucks air discharged from the second branch pipe 12 of the air duct 10 and sprays it on the surface of the battery pack 70 . The air distributor 30 is installed on one side of the upper, side or lower surface of the engine and ECU 20 . Furthermore, the air distributor 30 has a single inlet through which air is introduced along the surfaces of the engine and ECU 20 . The outlet of the air distributor 30 is formed in plurality so as to be positioned on the surface of the battery pack 70 at regular intervals. Accordingly, the air distributor 30 evenly sprays the air introduced along the surface of the engine and the ECU 20 to the surface of the battery pack 70 .

The refrigerant compressor 50 compresses the refrigerant with electrical energy supplied from the wind power generator 40 and circulates the refrigerant through the refrigerant pipe 60 installed on the bottom of the battery pack 70 . The refrigerant compressor 50 may compress the refrigerant with electric energy supplied from the battery and circulate it through the refrigerant pipe 60 . The refrigerant pipe 60 may be installed at the top or bottom of the battery pack 70 or at the side end.

2 and 3, while the electric vehicle 1 is running, air is introduced from the front to the inlet of the air duct 10 installed inside the electric vehicle 1, and the introduced air flows into the air duct 10. After being divided into one branch pipe (11), the windmill fan (41) is rotated by spraying onto the blades of the windmill fan (41) installed at the outlet of the first branch pipe (11). As the windmill fan 41 rotates, the wind power generator 40 generates electrical energy, which is supplied as charging power for the battery or driving power for operating the refrigerant compressor 50. In addition, the cooling fan 42 installed toward the engine and ECU 20 in the windmill fan 41 rotates to blow air to the engine and ECU 20, thereby cooling the engine and ECU 20.

In addition, the air divided into the second branch pipe 12 of the air duct 10 is injected to the surface of the engine and ECU 20 installed at the outlet of the second branch pipe 12 to cool the engine and ECU 20. let it In addition, the air injected along the surface of the engine and ECU 20 is sucked into the inlet of the air distributor 30 installed on the side of the engine and ECU 20, and then the air is installed on the surface of the battery pack 70 at regular intervals. is sprayed into the injection pipe 31 to cool the battery pack 70. At this time, the air injected from the second branch pipe 12 flows along the sides of the engine and ECU 20 to the inlet of the air distributor 30 by the blocking film 3 installed on the sides of the engine and ECU 20. installed to inlet. Furthermore, the third branch pipe is branched from the air duct 10 so that air can be injected to the bottom of the engine and the ECU 20 .

In addition, an injection pipe may be further installed so that air discharged from the second branch pipe 12 and passed through the windmill fan 41 is supplied to the side of the engine and the ECU 20 .

As another embodiment of the present invention, in FIG. 4, the air duct 10 is installed below the front of both sides of the engine and ECU 20, and the air discharged from the first branch pipe 11 of the air duct 10 is a windmill. By rotating the fan 41, the wind power generator 40 generates and supplies electrical energy. In addition, the air discharged from the second branch pipe 12 of the air duct 10 cools the engine and ECU 20 while flowing along the bottom surface of the engine and ECU 20, and then discharges from the rear of the engine and ECU 20. Cools the battery pack 70 while flowing along the surface of the battery pack 70 installed in the. In addition, the refrigerant compressor 50 is driven by electric energy supplied from the wind power generator 40 or the battery pack 70 to compress the refrigerant and cool the battery pack 70 while circulating it through the refrigerant pipe 60. have.

In addition, as another embodiment of the present invention, in FIG. 5, the air duct 10 is installed below the front of the engine and ECU 20, and the air discharged from the air duct 10 rotates the windmill fan 41. So that the wind generator 40 generates and supplies electrical energy. In addition, the refrigerant compressor 50 is driven by electric energy supplied from the wind power generator 40 or the battery pack 70 to compress the refrigerant and cools the battery pack 70 while circulating it through the refrigerant pipe 60. .

In addition, as another embodiment of the present invention, in FIG. 6, in the case where the engine room 2 of the electric vehicle 1 is installed at the rear, the air duct 10 installed on the side during driving of the electric vehicle 1 is inlet. When air is introduced, the air discharged from the first branch pipe 11 rotates the windmill fan 41 so that the wind turbine 40 generates and supplies electrical energy. The air discharged from the second branch pipe 12 of the air duct 10 cools the engine and ECU 20 while flowing through the lower end, side end, and upper end of the engine and ECU 20 . In addition, the air introduced into the air distributor 30 installed in the upper front of the engine and ECU 20 passes through a plurality of injection pipes 31 provided at regular intervals in the air distributor 30 to the surface of the battery pack 70. to cool the battery pack 70. In addition, the refrigerant compressor 50 is driven by electric energy supplied from the wind power generator 40 or the battery pack 70 to compress the refrigerant and cool the battery pack 70 while circulating it through the refrigerant pipe 60. have.

In the above description, the present invention has been shown and described in relation to specific embodiments, but it is common knowledge in the art that various modifications and changes are possible without departing from the spirit and scope of the invention indicated by the claims. Anyone who has it will be able to easily understand.

1: electric vehicle 2: engine room 3: barrier
10: air duct 11: first branch pipe 12: second branch pipe
20: engine and ECU
30: air distributor 31: injection pipe
40: wind generator 41: windmill fan 42: cooling fan
50: refrigerant compressor
60: refrigerant pipe
70: battery pack

Claims (6)

In an auxiliary charging and engine and battery cooling device using wind power in an electric vehicle (1),
a plurality of air ducts 10 installed inside the electric vehicle 1 to discharge air introduced from the outside through the first branch pipe 11 and the second branch pipe 12 while the vehicle is running;
a wind power generator 40 generating and supplying electrical energy by rotation of a windmill fan 41 composed of a plurality of blades by the pressure of the air discharged from the first branch pipe 11 of the air duct 10;
an air distributor (30) for sucking in the air exhausted from the second branch pipe (12) of the air duct (10) and injecting the air onto the surface of the battery pack (70);
A refrigerant compressor (50) for compressing the refrigerant with the electric energy supplied from the wind power generator (40) and circulating it through the refrigerant pipe (60) installed on the bottom of the battery pack (70);
The third branch pipe is branched to the air duct 10 to inject air to the bottom of the engine and the ECU 20,
The air duct 10 rotates a cooling fan 42 installed on at least one of the front, side, upper, and lower surfaces of the engine and ECU 20 and a windmill fan 41 integrally equipped with a wind generator 40. , auxiliary charging using wind power in electric vehicles, and cooling of engines and batteries.
delete The apparatus of claim 1, wherein the electric energy generated by the wind power generator (40) is converted into battery charging power and then the battery is charged.
The apparatus of claim 1, wherein the air distributor (30) is provided with a plurality of injection pipes (31) and installed on the surface of the battery pack (70), respectively, for auxiliary charging using wind power and cooling the engine and battery in an electric vehicle.
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