KR20090062326A - Engine room module of fuel cell vehicle - Google Patents

Abstract

An engine room module of a fuel cell for a vehicle is provided to facilitate the piping by mounting an air conditioner compressor in the front of a motor and mounting an air blower in the rear of the motor. An engine room module of a fuel cell for a vehicle is composed of a motor(100) mounted on a subframe which is a bottom frame of an engine room, an air blower(102) which is integrally mounted on the rear of a motor casing and a speed reducer, an air conditioner compressor(108) which is integrally mounted on the front of the motor casing, and a high voltage controller(114) which is mounted on the upper of the motor casing left and right. The distance between a condenser and the air conditioner compressor are shortened in order to shorten the length of an air-conditioner pipe.

Description

Engine room module of fuel cell vehicle

The present invention relates to a component module in an engine compartment of a fuel cell vehicle, and more particularly, a motor reducer is mounted in a subframe, and an air blower, an air conditioner compressor, a TMS module, and a high voltage controller are mounted in a motor and disposed in an engine compartment. The components of the engine compartment of the fuel cell vehicle can improve the assembly efficiency by improving the system efficiency, by allowing each component to form an integrated module, the decking to the sub-frame module can be improved.

A fuel cell system is a type of power generation system that converts chemical energy of a fuel directly into electrical energy.

Such a fuel cell system includes a fuel cell stack that greatly generates electric energy, a fuel supply system (hydrogen tank, hydrogen recycler, etc.) for supplying fuel (hydrogen) to the fuel cell stack, as shown in the schematic diagram of FIG. Air supply system (air supply, membrane humidifier, air blower, etc.) that supplies oxygen in the air, which is an oxidant required for electrochemical reaction, to the fuel cell stack, and removes the reaction heat from the fuel cell stack to the outside of the system. And a cooling system (water pump, radiator 14, etc.) for controlling the operating temperature of the stack.

In general, a fuel cell vehicle is a system driven simply by a motor without using a conventional internal combustion engine, and the torque generated from the motor of the fuel cell vehicle is amplified through a reducer or a transmission to drive the vehicle.

The fuel supply system for supplying hydrogen to the fuel cell stack in the fuel cell system configuration is installed in the rear side (trunk side) in the longitudinal direction of the vehicle body, the fuel cell stack is installed in the center of the vehicle body, the front of the vehicle body (engine room) An air supply system (such as an air blower) for oxygen supply, a cooling system (radiator, condenser, air conditioner compressor, etc.), and a driving device (motor, high voltage controller, TMS module) for driving a vehicle are installed.

At this time, each component installed in the engine room of the fuel cell vehicle is mounted in a modular form in consideration of integration, space efficiency and workability.

As a structure in which a component installed in an engine room of a conventional fuel cell vehicle is modularized, an example thereof is disclosed in US Pat. No. 6,968,915 (Nov. 29, 2005).

Referring to FIG. 6 briefly with reference to the contents disclosed in the US patent, a fuel cell vehicle for vibration reduction, comprising: a drive module including a main motor 21 and a transmission 22 having an axle G; A compressor module including a compressor motor 32 and a compressor 31; A cooling module including an intercooler 4 connected to a pipe and a cell of the fuel cell stack; Consists of

In particular, in order to reduce vibration, the main motor 21 and the compressor motor 32 are connected to rubber mounts R1 and R2, and the intercooler 4 and the compressor motor 32 are rubber mounts R6, R7), the compressor motor 32 and the transmission 22 are supported by a rubber mount (R4).

However, the existing engine room modular structure for fuel cell vehicles is efficient in terms of the layout structure for reducing vibration, but there is a disadvantage in that pipe work between components is difficult.

That is, the air blower should be piped to the fuel cell stack at the rear of the body, and the air conditioner compressor should be piped to the radiator at the front of the body. Existing engine room modular components focus only on vibration reduction. Since the pipe workability is not taken into consideration, the length of the pipe pipe is long and at the same time, there are disadvantages in that the workability is inferior because many parts are bent to avoid each component.

The present invention has been made in view of the above-mentioned, the optimum assembly of each component to be installed in the engine room of the fuel cell vehicle, and integrally assembled and modularized, air-conditioning pipe piping work by mounting the air-conditioning compressor in front of the motor This can be easily carried out, and by mounting an air blower at the rear of the motor so that piping work for air supply can be easily performed, it can be decked into the sub-frame module to improve the assembly workability, piping length The aim is to provide a component module in an engine compartment of a fuel cell vehicle that can improve fuel cell system efficiency through the reduction of fuel cell system.

The present invention for achieving the above object: in the state in which the motor and the speed reducer is mounted on the subframe of the engine room floor frame, the air blower is integrally mounted on the rear of the motor casing, the air conditioner on the front side of the motor casing It provides a component module in the engine room of a fuel cell vehicle, characterized in that the compressor is integrally mounted, and the TMS module and the high voltage controller are mounted side by side on the upper surface of the motor casing.

In a preferred embodiment, the distance between the air conditioner compressor and the condenser combined with the radiator is shortened, so that the length of the air conditioner pipe connecting the air conditioner compressor and the condenser can be shortened.

In another preferred embodiment, the distance between the air blower and the humidifier, and the distance between the air blower and the air purifier is shortened, the first air pipe pipe connecting the air blower and the humidification period, and the air blower and the air cleaning period It is characterized in that to shorten the length of the second air pipe connecting pipe.

Preferably, the motor casing is characterized in that the four-point mounting on the front and rear, left and right sides of the subframe.

Through the above problem solving means, the present invention can provide the following effects.

1) Of the components installed in the engine room of the fuel cell vehicle, the subframe is fixedly mounted, the air conditioner compressor is mounted at the front of the motor, and the air blower is mounted at the rear of the motor to modularize the air conditioning pipe. There is an advantage that the piping work for the air supply can be easily made.

2) Decking is possible with the sub frame module, which improves assembly workability.

3) As the length of pipe pipes extending from air conditioner compressors and air blowers is reduced, the length of fluid flow in each pipe can be shortened to improve fuel cell system efficiency and reduce costs.

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

The fuel cell vehicle system consists of fuel cell, hydrogen tank, driving motor, basic components of secondary battery (battery / supercapacitor), hydrogen supply device for driving fuel cell, air (oxygen) supply device, stack heat / water It consists of peripherals of management system.

In more detail, as shown in FIG. 4 and FIG. 5, a hydrogen supply apparatus installed at the rear of the vehicle body (trunk side) and including a hydrogen tank and a hydrogen recycler to supply hydrogen to the fuel cell stack; A fuel cell stack 106 installed at the center of the vehicle body; It is composed of an air supply system installed in the front of the vehicle body (engine room) and includes an air blower 102 to supply oxygen to the fuel cell stack 106, and a radiator 104 in the front of the vehicle body (engine room) In addition, a cooling system including a condenser 112, an air conditioner compressor 108, and the like, and a driving device including a motor 100, a high voltage controller 114, a TMS module 116, etc., are installed to drive the vehicle.

The present invention optimizes the arrangement of each component to be installed in the engine compartment and modularizes it integrally, thereby improving the pipe piping workability for air conditioning compressor pipe and air supply, and reducing the flow of fluid in the pipe as the length of each pipe piping is reduced. The main focus is on shortening the length to improve fuel cell system efficiency.

Accordingly, as shown in FIGS. 1 to 3, in the state in which the motor 100 and the reducer casing are integrally mounted to the subframe 110 that is the engine room floor frame, the motor 100 is disposed on the rear surface of the casing. The air blower 102 is integrally mounted, and the air conditioner compressor 108 is integrally mounted to the front side of the casing of the motor 100.

In addition, the TMS module 116 and the high voltage controller 114 are mounted side by side on the upper surface of the casing of the motor 100.

Thus, the air conditioner compressor 108 in front of the casing of the motor 100, the air blower 102 in the rear, the TMS (automatic shift control system) module 116 and the high voltage controller 114 in the upper Mounted integrally, one modular structure is achieved.

In this case, the TMS module 116 and the high voltage controller 114 are control means for vehicle behavior, and are sensitive to heat, so that the TMS module 116 and the high voltage controller 114 are mounted on the casing of the motor 100 so that the heat generated from the air blower 102 and the air conditioner compressor 108 can be controlled. It is not affected and placed at the top so that heat can be easily released while contacting the outside air.

According to the modularization of the components in the engine compartment of the present invention, the distance between the air conditioner compressor 108 mounted in front of the motor 100 casing and the radiator 104 located in the front of the engine room is shortened, and thus the air conditioner compressor 108 ) And the distance between the condenser 112 coupled to the radiator 104 may be shortened, and thus the length of the air conditioner pipe 118 connecting the air conditioner compressor 108 and the condenser 112 may be shortened.

Therefore, the flow length of the refrigerant fluid flowing through the air conditioner pipe 118 may be shortened to increase the cooling system efficiency.

Further, according to the modularization of the components in the engine compartment of the present invention, the distance between the air blower 102 mounted at the rear of the casing of the motor 100 and the humidifier 124 behind it, and the air blower 102 and the air behind it The distance between the purifier 126 is shortened, and thus, the first air pipe pipe 120 connecting the air blower 102 and the humidifier 124 and the air blower 102 and the air cleaner 126. It is possible to shorten the length of the second air pipe pipe 122 connecting the.

Accordingly, the air supply efficiency may be improved by shortening the flow length of the air fluid flowing through the first and second air pipe pipes 120 and 122.

Meanwhile, the motor 100 casing allows four points to be mounted on the front and rear, left and right sides of the subframe 110, for the reason that the air blower 102 and the air conditioner compressor 108 are mounted on the motor 100 casing. Since the TMS module 116 and the high voltage controller 114 are integrally mounted, the TMS module 116 and the high voltage controller 114 may be firmly fixed.

1 is a side view showing the structure of a component module in an engine room of a fuel cell vehicle according to the present invention;

2 is a plan view showing a component module structure in an engine room of a fuel cell vehicle according to the present invention;

Figure 3 is a side view illustrating that the length of the piping pipe is shortened based on the component module in the engine room of the fuel cell vehicle according to the present invention,

4 is a side view for explaining the arrangement of components in an engine room of a fuel cell vehicle;

5 is a schematic view for explaining a system configuration of a fuel cell vehicle;

6 is a side view illustrating an example of modularization of an engine room component for an existing fuel cell vehicle.

<Explanation of symbols for the main parts of the drawings>

100: motor 102: air blower

104: radiator 106: fuel cell stack

108: air conditioner compressor 110: subframe

112: capacitor 114: high voltage controller

116: TMS module 118: air conditioning pipe

120: first air supply pipe 122: second air supply pipe

124: humidifier 126: air cleaner

Claims (4)

In the state where the motor and its reducer are mounted on the subframe, which is an engine room floor frame, an air blower is integrally mounted on the rear side of the motor casing, and an air conditioner compressor is integrally mounted on the front side of the motor casing. A component module in an engine room of a fuel cell vehicle, characterized in that the upper surface is modularized by mounting the TMS module and the high voltage controller side by side. The fuel cell vehicle according to claim 1, wherein the distance between the air conditioner compressor and the condenser combined with the radiator is shortened to shorten the length of the air conditioner pipe connecting the air conditioner compressor and the condenser. Component module in engine room. The method of claim 1, wherein the distance between the air blower and the humidifier, and the distance between the air blower and the air purifier is shortened, connecting the first air pipe pipe connecting the air blower and the humidification period, connecting the air blower and the air cleaning period The component module in the engine room of the fuel cell vehicle, characterized in that to shorten the length of the second air piping pipe. The component module of an engine compartment of a fuel cell vehicle according to claim 1, wherein the motor casing is mounted at four points on the front and rear, left and right sides of the subframe.

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