KR200142899Y1 - Clutch for compressor - Google Patents

Abstract

The present invention relates to a clutch for a compressor.

A main body fixed to an end of a rotating shaft of the compressor main body and provided with a stopper plate, a disc supported by a rivet inserted into the hollow part of the damper provided on the stopper plate so as to be in close contact with and detachable from a pulley rotatably installed on the main body, A clutch coil fixed to the clutch and inserted into a housing part formed at the rear of the pulley, a cover coupled to the housing part to cover the clutch coil, and a temperature sensing element fixed to the cover by a predetermined coupling means. In the coupling means, the long hole formed on the upper surface of the cover so that the temperature sensing element is mounted, and the adhesive is applied to prevent the separation of the temperature sensing element mounted on the long hole.

According to the present invention, it is possible to quickly measure the frictional surface of the pulley due to the abnormality of the compressor and the frictional heat generated during the rotation of the disk can extend the life of the compressor.

Description

Compressor Clutch

The present invention relates to a clutch for a compressor, and more particularly, to a compressor clutch that is installed on a compressor rotating shaft of an automobile air conditioner to control a power transmitted from a driving source to the rotating shaft.

Typically, a compressor used in an automobile air conditioner is connected to a crankshaft pulley of an engine so as to rotate. Therefore, rotation continues when the engine is started.

However, the compressor should be capable of rotating and stopping from time to time. To smooth this, there is a rotor pulley which is connected to the engine by a belt and rotates, and the shaft of the compressor is rotated separately. Therefore, the compressor is rotated in contact when compression is necessary.

When cooling is not required, the clutch plate connected to the compressor shaft does not rotate, but when cooling is required, current flows through the clutch coil inside the pulley to form an electromagnet. Therefore, the pulley and the clutch plate are contacted to rotate integrally to start the compression.

1 shows an example of a compressor 10 of a conventional air conditioner.

The compressor 10 includes a compressor main body 11, a pulley 13 rotatably installed with respect to the rotating shaft 12 supported by the main body 11, and a clutch for intermittent power from the rotating pulley 13. It is provided with 14.

Here, the clutch 14 is provided with a housing portion 13a into which the clutch coil 15 fixed to the main body 11 of the compressor 10 is inserted into the rear surface of the pulley 13. A friction surface 13b is formed on the front surface of the pulley 13. In addition, a hub 16a in which the stopper plate 16 is installed is fixed to an end of the compressor rotating shaft 12.

In addition, the stopper plate 16 is provided with a disk 17, the disk 17 is the friction by the rivet 19 inserted into the hollow portion of the damper 18 provided on the stopper plate 16 It is spaced apart from the surface 13b by a predetermined interval.

On the other hand, as shown in Figure 2, a thermal fuse (thermal fuse 21) is provided in the clutch coil (! 5) inserted into the housing portion 13a, the temperature fuse 21 is the clutch It is immersed in an epoxy (22) coated on the inner surface of the coil 15.

Referring to the operation of the conventional compressor 10 configured as described above is as follows.

Magnetic force is generated as a predetermined current is applied to the clutch coil 15 fixed to the main body 11 of the compressor 10. The disk 17 is in close contact with the friction surface 13b of the pulley 13 by the magnetic force, so that the rotational force of the pulley 13 that is rotated by the engine of the vehicle is transmitted to the rotation shaft 12 of the compressor. .

When the clutch coil 15 is not operated, the friction surface 13b of the pulley 13 and the disk 17 are applied to the elastic force of the damper 18 provided on the stopper plate 16. Separated by. Therefore, the pull force of the pulley 13 is idle because the rotational force of the pulley 13 is not transmitted to the rotation shaft 12 of the compressor 10.

If an abnormality occurs during operation of the compressor 10, the temperature fuse 22 is installed in the clutch coil 15 to which a predetermined current inserted into the housing part 13a is applied. The power supply due to the temperature rise of the clutch coil 15 can be interrupted. Therefore, the clutch 14 is prevented from failing by intermittent the rotational force transmitted to the friction surface 13b of the pulley 13 and the disk 17.

By the way, in the conventional compressor 10, the temperature fuse 21 is immersed in the epoxy (22) applied on the clutch coil 15 installed in the housing portion (13a), Heat caused by friction of the friction surface 13b of the pulley 13 and the disk 17 is not transmitted to the temperature fuse 22 accurately due to the influence of the epoxy 22, so that the friction surface 13b and the disk The phenomenon in which (17) is stuck may occur.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a clutch for a compressor having improved coupling means of a temperature sensing element for quickly shutting off power applied to a clutch coil of a compressor.

1 is a cross-sectional view showing a conventional compressor,

2 is a partially cutaway perspective view showing a state in which a clutch coil is mounted on a conventional housing part;

Figure 3 is an exploded perspective view showing a state in which the clutch coil is mounted to the housing unit according to the present invention,

4 is an enlarged cross-sectional view of a portion A of FIG. 3.

Brief description of symbols for the main parts of the drawings

10. Compressor 11. main body

12. Rotating shaft 13. Pulley

13a, 32. Housing part 13b. Friction surface

14. Clutch 15,35. Clutch coil

16. Stopper plate 17. disk

Damper 19. Rivet

21,33. Temperature Fuses 22. Epoxy

31. Cover 31a. Major

32a. Space section 34. silicon

35a. wire

In order to achieve the above object, the compressor clutch of the present invention has a stopper plate fixed to a rotation shaft end of the compressor main body and a stopper plate provided thereon, and the stopper plate on the stopper plate to be in close contact with and separated from the pulley rotatably installed on the main body. A disk supported by a rivet inserted into the hollow portion of the damper installed in the clutch, a clutch coil fixed to the main body and inserted into a housing part formed at the rear of the pulley, and a cover coupled to the housing part to cover the clutch coil. And a clutch for a compressor having a temperature sensing element fixed to the cover by a predetermined coupling means, wherein the coupling means comprises a long hole formed on an upper surface of the cover to mount the temperature sensing element; Made of an adhesive applied to prevent the detachment of the temperature sensing element mounted on the It features.

According to the present invention, it is preferable that the temperature sensing element is formed of a temperature fuse, and both ends of the temperature fuse are connected to respective wires forming the clutch coil.

Hereinafter, a preferred embodiment of a clutch for a compressor according to the present invention will be described in detail with reference to the accompanying drawings.

Like reference numerals in the drawings shown above indicate the same components.

As shown in FIG. 1, the compressor clutch includes a housing part 13a provided on the rear side of the pulley 13 rotatably installed with respect to the rotation shaft 12 supported by the main body 11, and inside the housing part 13a. A clutch coil 35 inserted into and fixed to the stopper, a stopper plate 16 fixed to the end of the rotation shaft 12 of the compressor 10 by a hub 16a, and installed on the stopper plate 16. The disk 17 is supported by the rivet 19 inserted in the hollow part of the damper 18, and is comprised.

Here, a temperature sensing element for sensing heat generated by the disk 17 and the pulley 13 is installed in the upper portion of the clutch coil 35 is inserted into the housing portion according to the features of the present invention.

More specifically, as shown in Figs. 3 and 4, the housing portion 32 is inserted into the clutch coil 35, which is a means for applying a predetermined current to the space portion 32a formed therein. . In addition, the housing part 32 into which the clutch coil 35 is inserted is covered by a correspondingly formed cover 31. A temperature sensing element, for example, a temperature fuse 33 is mounted on the upper surface of the cover 31, and the temperature fuse 33 is fixedly installed by a predetermined coupling means.

That is, the coupling means includes a long hole 31a formed to mount the temperature fuse 33 on a predetermined portion of the upper surface of the cover 31, and the temperature fuse 33 mounted to the long hole 31a. The adhesive is applied for the purpose of preventing the separation of, for example, is provided with a silicone (34).

And both ends of the said temperature fuse 33 are connected with the wire 35a which comprises the said clutch coil 35, and an electricity supply is possible.

Referring to the operation of the clutch for a compressor according to the present invention configured as described above are as follows.

A predetermined current is applied to the clutch coil 35 fixed to the main body 11 of the compressor, whereby magnetic force is generated in the clutch coil 35. The disk 17 comes into close contact with the friction surface 13b of the pulley 13 by the magnetic force.

In this way, the rotational force of the pulley 13 rotating by the engine of the vehicle is transmitted to the rotation shaft 12 of the compressor to rotate.

In addition, in order to stop the operation of the compressor 10, the current applied to the clutch coil 35 is cut off. When the clutch coil 35 is not operated, the friction surface 13b of the pulley 13 and the disk 17 are separated by the elastic force of the damper 18 provided on the stopper plate 16. .

Therefore, the pull force of the pulley 13 is idle because the rotational force of the pulley 13 is not transmitted to the rotation shaft 12 of the compressor 10.

At this time, an operation abnormality of the compressor 10 occurs and the disk 17 is not separated from the friction surface 13b of the pulley 13, and the disk 17 and the pulley 13 are rotated by friction. The friction heat is generated.

Here, since the compressor clutch according to the present invention is provided with a temperature fuse 33 on the upper surface of the cover 31 so as not to flow a current in the clutch coil 35 inserted into the housing portion 32. The temperature fuse 33 is melted due to frictional heat generated by friction between the friction surface 13b of the pulley 13 and the disk 17 so that no current flows in the clutch coil 35.

Therefore, the friction surface 13b of the pulley 13 and the disk 17 become separable.

As described above, the compressor clutch of the present invention may have the following effects by improving the coupling means of the temperature sensing element to cut off the power applied to the coil.

First, it is possible to quickly determine the friction surface of the pulley due to the abnormality of the compressor and the friction heat generated when the disk rotates, thereby extending the life of the compressor.

Second, even when the temperature sensing element is melted and unavailable, it can be easily replaced with another temperature sensing element.

Third, the temperature sensing element can be used regardless of the shape of the housing part.

Fourth, since the temperature sensing element is mounted on the upper surface of the cover, the frictional heat can be measured relatively accurately, thereby improving the resilience.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modified light equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be defined by the technical spirit of the appended claims.

Claims (3)

A disk which is fixed to the end of the rotating shaft of the compressor main body and provided with a stopper plate, and a disk supported by a rivet inserted into the hollow part of the damper provided on the stopper plate so as to be in close contact with and detachable from the pulley rotatably installed on the main body; A clutch coil fixed to the main body and inserted into a housing part formed on a rear surface of the pulley, a cover coupled to the housing part to cover the clutch coil, and a temperature sensing element fixed to the cover by a predetermined coupling means. In the clutch for a compressor provided, The coupling means is a clutch for a compressor comprising a long hole formed on the upper surface of the cover so that the temperature sensing element is mounted, and an adhesive applied to prevent the separation of the temperature sensing element mounted on the long hole. The method of claim 1, And the temperature sensing element is formed of a temperature fuse, and both ends of the temperature fuse are connected to respective wires forming the clutch coil. The method of claim 1, Clutch for the compressor, characterized in that the adhesive is formed of silicon.