KR20040060064A - Compressor driving apparatus for airconditioner of vehicle - Google Patents

Abstract

PURPOSE: A compressor-driving device of an air conditioner for a vehicle is provided to make all of a driving pulley, an idle pulley, a driven pulley, and a belt stop the moment power is cut off, to reduce noise, and to elongate life span, by installing a clutch to not a slave shaft but a driving shaft of an engine. CONSTITUTION: A compressor-driving device of an air conditioner for a vehicle comprises a driving pulley(12) installed to a driving shaft(11) of an engine(10); a driven pulley(22) installed to a slave shaft(21) of a compressor(20); a belt(30) connecting the driving pulley and the driven pulley; and an idle pulley(40) around which the middle of the belt is fasten. A magnet clutch(50) is installed between the driving shaft of the engine and the driving pulley. If the drive of the compressor stops, the magnet clutch is short circuited to stop rotation of all of the driving pulley, the driven pulley, the idle pulley, and the belt.

Description

Compressor drive device for vehicle air conditioner {COMPRESSOR DRIVING APPARATUS FOR AIRCONDITIONER OF VEHICLE}

The present invention relates to a compressor driving apparatus of a vehicle air conditioner, and to stop the rotation of the belt and idle pulley for driving the compressor when the operation of the vehicle air conditioner is stopped, thereby reducing the noise and wear generated from the belt and idle pulley, and more It is characteristic to go out and extend the life of the belt.

In general, an air conditioner of a vehicle receives a driving power of a compressor for compressing a refrigerant from an engine.

First, referring to the conventional compressor power transmission structure, as shown in FIG. 1, the drive pulley 12 condensed on the main shaft 11 of the engine 10 and the driven shaft 21 of the compressor 20 installed on one side thereof. ) And a driven pulley 22, and a belt 30 connecting them, and an idle pulley 40 tensioned by suspending the belt.

As described above, the power transmitted to the belt 30 is blocked by the clutch C provided on the driven shaft 21 of the compressor 20 to protect the compressor.

However, the conventional power transmission structure as described above has the following problems.

That is, when the operation of the air conditioner is stopped, the clutch C is short-circuited to stop the driving of the compressor 20. However, the driving pulley 12 and the idle that are condensed to the engine 10 of the engine 10 are idle. Since the pulley 40 and the driven pulley 22 are connected to each other by the belt 30, the pulley 40 and the driven pulley 22 are all maintained as long as the driving pulley 12 rotates.

Therefore, even when the rotation of the belt 30 is unnecessary, since the belt and idle pulley 40 rotates, wear is severe, noise due to friction occurs, and the life of the belt is greatly shortened.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems. The main object of the present invention is to protect the compressor by providing a clutch to block the transmission of power for the protection of the compressor on the motion shaft of the engine rather than the driven shaft of the compressor. The moment the power is cut off, the pulley, idle pulley, driven pulley, and the belt to stop all, the purpose is to go out, reduce noise, and extend the life.

A characteristic means of the present invention for achieving the above object is a drive pulley condensed on the drive shaft of the engine, driven pulleys condensed on the driven shaft of the compressor installed on one side thereof, a belt connecting them, and the belt In the compressor drive device comprising an idle pulley which is tensioned by stopping the engine, the magnet clutch is provided between the driving shaft of the engine and the drive pulley, and then the magnet clutch is shorted together when the compressor stops driving. The driving pulleys, driven pulleys, idle pulleys, and belts are all characterized in that they do not rotate.

1 is a perspective view showing a compressor driving device of a vehicle air conditioner

2 is a block diagram showing a conventional power transmission structure

3 is a block diagram showing a power transmission structure of the present invention

Figure 4 is a configuration before operation showing the magnet clutch of the present invention

5 is a configuration diagram after the operation showing the magnet clutch of the present invention

<Code Description of Main Parts of Drawing>

10: engine

11: circle shaft

12: driving pulley

13: housing

20: compressor

21: driven shaft

22: driven pulley

30: belt

40: children pulley

50: magnet clutch

51: clutch plate

52: disc spring

53: bracket

54: rotor

55: V groove

56: U-shaped groove

57: Bearing

58: electromagnet stator

Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 3, the compressor driving device includes a driving pulley 12 which is condensed on the drive shaft 11 of the engine 10 and a driven pulley which is condensed on the driven shaft 21 of the compressor 20 installed at one side thereof. (22), the belt 30 which connected them, and the idle pulley 40 which tensioned by stopping the said belt.

In the present invention, the magnet clutch 50 is installed between the drive shaft 11 and the driving pulley 12 of the engine 10, and then the magnet clutch 50 is stopped when the compressor 20 is stopped. It is important to short-circuit together, and the magnet clutch 50 as shown in FIGS. 4 and 5 can be used as the configuration of the embodiment.

This magnet clutch 50 has the components of the clutch plate 51, the rotor 54, and the electromagnet stator 58. As shown in FIG.

The clutch plate 51 compacts the bracket 53 on the drive shaft 11 of the engine 10, fixes the disc spring 52 to the outer circumference of the bracket, and then the outer circumference of the disc spring 52. It is fixed at the end.

The rotor 54 has a bearing 57 formed on the housing 13 of the engine 10, and is then fixed to the outer ring of the bearing, but having a V-groove 55 on the outer circumferential surface thereof. Has 56.

In addition, the electromagnet stator 58 is fixed to the outer surface of the housing 13 of the engine 10, but is embedded in the c-shaped groove 56 of the rotor 54 without interference.

The magnet clutch 50 of the present invention configured as described above operates immediately after turning on the air conditioner switch to operate the air conditioner.

That is, when power is supplied to the electromagnet stator 58 with the switch ON, the electromagnetic force is generated, and the electromagnetic force is the clutch plate 51 located outside the rotor 54 having the V groove 55 as shown in FIG. 5. Pull together.

Since the clutch plate 51 is connected to the bracket 53 of the engine shaft 11 of the engine 10 by the disc spring 52, the clutch plate 51 rotates from the moment when the engine is started. The electromagnet stator 58 The moment the magnetic force of the action is in close contact with the outer surface of the rotor 54 is to transmit the rotational force.

Therefore, the rotational force of the engine shaft 11 of the engine 10 is transmitted to the rotor 54 through the clutch plate 51, and the rotor 54 is the compressor 20 as the belt 30 caught in the V-groove 55. Since the driven pulley 22 of the driven shaft 21 is rotated, the compressor 20 can start the compression operation.

On the contrary, when the OFF switch is operated to stop the use of the air conditioner, when the power is cut off to the electromagnet stator 58, the electromagnetic force is extinguished, and the electromagnetic force is dissipated, so that the clutch plate 51 opens the V groove 55 as shown in FIG. Are spaced apart from the outside of the rotor 54.

Therefore, the rotor 54 with the belt 30 in the V-groove 55, the belt 30, and the driven pulley 22 of the compressor 20 connected to the rotor stop rotation.

The present invention, as described in detail above, uses a clutch that cuts off power transmission for protection of the compressor, and the installation position of the clutch is provided on the movement shaft of the engine rather than the driven shaft of the compressor, thereby stopping the air conditioner operation. For this purpose, the momentary pulley, idle pulley, driven pulley and belt can be stopped at the moment the switch is turned off, and further stops with the stop of the compressor, thereby preventing friction and noise, and also the belt and pulley It has the advantage of greatly extending their lifespan.

Claims (2)

The drive pulley 12 condensed on the main shaft 11 of the engine 10, the driven pulley 22 condensed on the driven shaft 21 of the compressor 20 provided on one side thereof, and the connection between them In the compressor drive device comprising a belt 30 and the idle pulley 40 is tensioned by hanging the belt, After the magnet clutch 50 is installed between the driving shaft 11 and the driving pulley 12 of the engine 10, the magnet clutch 50 is short-circuited together when the driving of the compressor 20 is stopped. Therefore, the compressor drive device for a vehicle air conditioner, characterized in that the drive pulley, the driven pulley, the idle pulley, and the belt does not rotate all. The method of claim 1, The magnet clutch 50 includes a bracket 53 fixed on the driving shaft 11 of the engine 10, a disc spring 52 fixed to an outer circumference of the bracket, and an outer circumference of the disc spring 52. Clutch plate 51 fixed to the end; And the rotor (57) and the rotor 57 is in contact with the outer ring of the bearing 57 and the bearing 57 arranged in the housing 13 of the engine 10 and having a U-shaped groove 56 in the inner side while having a V groove 55 on the outer peripheral surface thereof. ); And fixed to the outer surface of the housing 13 of the engine 10, the electromagnet stator (58) embedded in the c-shaped groove 56 of the rotor 54; The compressor drive device for a vehicle air conditioner, characterized in that the clutch plate (51) is detached from the rotor (54) by the electromagnet stator (58) to shield power transmission.