Apparatus for cooling hydrogen recirculation blower for fuel cell vehicle
a fuel cell vehicle and hydrogen recirculation technology, which is applied in the direction of indirect heat exchangers, electrochemical generators, lighting and heating apparatus, etc., can solve the problems of unsuitable system optimization, restrictive air cooling methods, and small motors
Inactive Publication Date: 2009-01-15
HYUNDAI MOTOR CO LTD
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Benefits of technology
The present invention provides an apparatus for cooling a hydrogen recirculation blower for a fuel cell vehicle using hydrogen as a coolant instead of a coolant. The apparatus includes a blower housing with a cooling passage and a hydrogen supply line for cooling the motor. The cooling passage is placed on the outer surface of the blower housing to cool the motor heated by the rotation of the impeller. Cooling fins are provided inside the cooling passage to further cool the heat generated from the motor. A heat insulating plate is provided inside the blower housing to separate the impeller and motor portions. The technical effect of this invention is to improve the efficiency and reliability of fuel cell vehicles by reducing the temperature of the motor during operation.
Problems solved by technology
However, conventional air cooling methods in which cooling fins are used are restrictive with respect to a motor having a small capacity due to the amount of heat radiation.
Also, water cooling methods require additional coolant lines and water pumps, which is unfit to optimization of the system.
Method used
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[0030]Reference will now be made in detail to the preferred embodiment of the present invention, examples of which are illustrated in the drawings attached hereinafter, wherein like reference numerals refer to like elements throughout. The embodiments are described below so as to explain the present invention by referring to the figures.
[0031]FIG. 2 is a schematic diagram illustrating an apparatus for cooling a hydrogen recirculation blower for a fuel cell vehicle, and FIG. 3 is a schematic diagram illustrating the structure of a hydrogen recirculation blower of FIG. 2.
[0032]According to a preferred embodiment of the present invention, an apparatus for cooling a hydrogen recirculation blower for a fuel cell vehicle is provided, in which a hydrogen supply line 58 is coupled to a blower housing 51 of a hydrogen recirculation blower 50 (hereinafter referred to as the ‘hydrogen blower’), and hydrogen, used as fuel in a fuel cell, is used as a coolant for cooling a motor.
[0033]The hydrog...
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The present invention provides an apparatus for cooling a hydrogen recirculation blower for a fuel cell vehicle the apparatus including: a blower housing including an inlet and an outlet for hydrogen recirculation provided in a front part thereof, and an impeller and a motor for driving the hydrogen recirculation blower provided therein; a cooling passage, through which hydrogen is supplied to the blower housing to provide heat exchange, provided to the blower housing; and a hydrogen supply line, through which hydrogen is supplied to the cooling passage to cool the motor, branched from a hydrogen supply pipe and connected to the blower housing, thereby improving cooling efficiency of the motor and ensuring stability of the fuel cell system.
Description
CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims under 35 U.S.C. §119(a) on Korean Patent Application No. 10-2007-0070335, filed on Jul. 13, 2007, the entire contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION[0002](a) Technical Field[0003]The present invention relates to an apparatus for cooling a hydrogen recirculation blower for a fuel cell vehicle. More particularly, the present invention relates to an apparatus for cooling a hydrogen recirculation blower for a fuel cell vehicle which improves cooling efficiency of a motor and ensures stability of the system by supplying a portion of hydrogen used as fuel in a fuel cell to a blower housing.[0004](b) Background Art[0005]In general, a fuel cell used as a main power source of a fuel cell vehicle generates electricity by combining oxygen from the air and hydrogen stored in a fuel tank.[0006]FIG. 1 is a schematic diagram of a fuel cell system for a fuel cell vehicle. The fuel cell 10 ...
Claims
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IPC IPC(8): F28D3/00
CPCH01M8/04097Y02E60/50Y02T90/32H01M2250/20Y02T90/40H01M8/04B60L50/50
Inventor NOH, YONG GYUKWON, HYUCK ROUL
Owner HYUNDAI MOTOR CO LTD