KR20170071297A - Cooling system for electronic units in fuel cell vehicle - Google Patents

Cooling system for electronic units in fuel cell vehicle Download PDF

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Publication number
KR20170071297A
KR20170071297A KR1020150179481A KR20150179481A KR20170071297A KR 20170071297 A KR20170071297 A KR 20170071297A KR 1020150179481 A KR1020150179481 A KR 1020150179481A KR 20150179481 A KR20150179481 A KR 20150179481A KR 20170071297 A KR20170071297 A KR 20170071297A
Authority
KR
South Korea
Prior art keywords
cooling water
fuel cell
cooling
cooling system
radiator
Prior art date
Application number
KR1020150179481A
Other languages
Korean (ko)
Inventor
원승현
최경준
Original Assignee
현대자동차주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020150179481A priority Critical patent/KR20170071297A/en
Publication of KR20170071297A publication Critical patent/KR20170071297A/en

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    • B60L11/1892—
    • B60L11/1883—
    • B60L11/1896—
    • B60L11/1898—
    • B60L2230/28—
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
    • Y02E60/521—

Abstract

The present invention relates to an electric cooling system of a fuel cell vehicle in which cost and weight are reduced by integrating a connection structure of a cooling water pipe and a reservoir tank.
The present invention relates to an electric cooling system for a fuel cell vehicle having a reservoir tank for storing cooling water for supplying cooling water to a radiator for cooling an electric component of a vehicle, wherein the radiator and the reservoir tank are connected in series and in parallel And an AS valve is provided at one side of the cooling water hose.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cooling system for a fuel cell vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to an overall cooling system for a fuel cell vehicle, and more particularly, to an overall cooling system for a fuel cell vehicle in which cost and weight are reduced by integrating a connection structure of a cooling water pipe and a reservoir tank.

Generally, in the case of a fuel cell vehicle, an electric field radiator for cooling the electric component is provided.

In addition, the electrical equipment includes a motor, and it is necessary to provide a cooling device for suppressing an increase in the temperature of components in order to generate heat during operation and maintain the input / output characteristics of the components in the best condition.

In addition, the inside of the radiator may be excessively increased in pressure due to volume change due to temperature change while cooling water is flowing, and there may not be enough cooling water.

In order to solve this problem, the radiator communicates with the reservoir tank (auxiliary tank), and when the pressure inside the radiator rises excessively, cooling water in the radiator is discharged to the reservoir tank, and the temperature or pressure inside the radiator falls Cooling water is supplied to the inside of the radiator.

Fig. 1 shows a structural view of an example of an overall cooling system of a fuel cell vehicle.

1, the full-length cooling system of the fuel cell vehicle is of an air-opening type cooling type and includes a radiator 11, a reservoir tank 13, an electric water pump (not shown) for cooling the heat generated by circulation of the cooling water, An electronic water pump (EWP) 12, a low voltage DC-DC converter 14, a bi-directional high voltage direct converter (BHDC) 15, a motor 16, a motor control unit (MCU) 17, and a blower power control unit (BPCU).

[0004] However, in the full-length cooling system of the fuel cell vehicle according to the conventional technique configured as described above, the cooling water circuit is complicated and the cooling water flow rate is large.

That is, the cooling system takes a long time to blow out air, and the sound pressure at the front end of the water pump 12 is large, so that the durability in the water pump 12 is deteriorated.

Also, the pressure at the inlet end of the water pump 12 was -0.24 bar, and the injection of the AS cooling water (the time required for venting air) took 45 to 50 minutes (min).

In addition, there is a problem that the structure of the cooling system is complicated, the cost and the weight are increased, the total heat capacity and the pressure resistance of the system are large because the components of the cooling system are excessively configured at the lower end of the engine room and the underflow of the cooling system.

On the other hand, as a prior art related to the present invention, there is a cooling module for a vehicle of Patent Publication No. 10-2013-0032002 (published on Mar.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to improve the durability of a water pump by improving the AS cooling water injection time, And it is an object of the present invention to provide an overall cooling system of a fuel cell vehicle in which weight is reduced.

In order to accomplish the above object, the present invention provides an overall cooling system for a fuel cell vehicle, comprising a reservoir tank for storing cooling water for supplying cooling water to a radiator for cooling an electrical component of the vehicle, The radiator and the reservoir tank are connected in series and in parallel by a cooling water hose, and an AS valve is installed on one side of the cooling water hose.

According to the embodiment of the present invention, it is possible to take advantage of each of the series and parallel configurations by mixing and connecting the reservoir tank and the radiator in parallel / in series.

Further, by connecting the reservoir tank to the front end of the radiator and installing the AS valve in the cooling water hose, the AS coolant injection time was improved, the shear pressure of the water pump was reduced, and the durability of the water pump was improved.

And the connection structure of the cooling water pipe and the reservoir tank are integrated to reduce the cost and weight, and the electric cooling system of the fuel cell vehicle can be made compact.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing the configuration of an overall cooling system of a general fuel cell vehicle. FIG.
BACKGROUND OF THE INVENTION Field of the Invention [0001]
3 is a detailed view of the configuration of the recess in Fig.
4 is a view showing a state in which a reservoir tank and a cooling water piping structure applied to an overall cooling system of a fuel cell vehicle according to the present invention are optimized.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a block diagram showing the configuration of an overall cooling system of a fuel cell vehicle according to the present invention, and FIG. 3 is a detailed view of the configuration of the recess in FIG.

2 and 3, the overall cooling system of the fuel cell vehicle according to the present invention includes a radiator 31 provided for cooling the cooling water to cool the electric component or the electric cooling system, and a radiator 31 And a reservoir tank 20 in which cooling water is supplied to the electric-field cooling system so that the cooling water is circulated in the electric-field cooling system.

The electric vehicle cooling system of the fuel cell vehicle is provided with a water pump (EWP) 32 for operating the cooling water of the radiator 31 to circulate to the vehicle full-cooling system of the vehicle, a motor 33, an electronic pump control unit (EPCU) 34, a blower power control unit (BPCU) 35, a bidirectional high voltage power converter (BHDC) 36, an air blower 37 and an air cooler 38.

The radiator 31 and the reservoir tank 20 are connected in series and in parallel by a cooling water hose 22 and a cooling water pipe 23. An AS valve 21 is connected to one side of the cooling water hose 22 Respectively.

The cooling water hose 22 connected to the reservoir tank 20 and the AS valve 21 is connected by a plurality of clamps 24.

A cooling water pipe 23 is connected to an inlet end and an outlet end of the cooling water hose 22 to which the cooling water is supplied and discharged.

The radiator 31 and the AS valve 21 are connected in series.

The operation of the overall cooling system of the fuel cell vehicle according to the present invention having the above-described configuration will now be described.

Referring to the drawings again, the cooling type of the full-scale cooling system of the fuel cell vehicle according to the present invention is constituted by a variable-pressure-type pressurizing circuit, the AS valve 21 is closed when the AS coolant is injected, And is opened.

As shown in FIGS. 2 and 3, the reservoir tank 20 and the radiator 31 may be connected in parallel / in series to take advantage of the respective series and parallel configurations.

The reservoir tank 20 is connected to the front end of the radiator 31 via the cooling water hose 22 and the cooling water pipe 23, By providing the AS valve 21 in the cooling water hose 22, the AS cooling water injection time is improved, the front end pressure of the water pump 12 is reduced, and the durability of the water pump is improved.

3, in integrating the connection structure of the cooling water pipe and the reservoir tank 20, cost and weight can be reduced, and a fuel cell vehicle Thereby making it possible to make the whole-body cooling system of the present invention compact.

4 shows a state in which the reservoir tank 20 and the cooling water pipe are optimized.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

20. Reservoir tank
21. Valves for AS
22. Coolant hose
23. Cooling water pipe
24. Clamp
31, a radiator
32. Water pump
33. Motor
34. Pump control unit
35. Blower power control unit
36. Bidirectional high voltage power inverter
37. Air Blower
38. Air Cooler

Claims (4)

1. An electric-field cooling system for a fuel cell vehicle, comprising a reservoir tank in which cooling water is stored for supplying cooling water to a radiator for cooling electric components of the vehicle,
Wherein the radiator and the reservoir tank are connected in series and in parallel by a cooling water hose,
And an AS valve is installed on one side of the cooling water hose. The method according to claim 1,
And the cooling water hose connected to the reservoir tank and the AS valve is connected by a clamp. The method according to claim 1,
And a cooling water pipe is connected to an inlet end and an outlet end of the cooling water hose. The method according to claim 1,
Wherein the radiator and the AS valve are connected in series.
KR1020150179481A 2015-12-15 2015-12-15 Cooling system for electronic units in fuel cell vehicle KR20170071297A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150179481A KR20170071297A (en) 2015-12-15 2015-12-15 Cooling system for electronic units in fuel cell vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150179481A KR20170071297A (en) 2015-12-15 2015-12-15 Cooling system for electronic units in fuel cell vehicle

Publications (1)

Publication Number Publication Date
KR20170071297A true KR20170071297A (en) 2017-06-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150179481A KR20170071297A (en) 2015-12-15 2015-12-15 Cooling system for electronic units in fuel cell vehicle

Country Status (1)

Country Link
KR (1) KR20170071297A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108321459A (en) * 2018-02-02 2018-07-24 上海义赫文化传媒有限公司 A kind of battery cooling apparatus of electronic racing car

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108321459A (en) * 2018-02-02 2018-07-24 上海义赫文化传媒有限公司 A kind of battery cooling apparatus of electronic racing car

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