KR100822603B1 - Disc and hub assembly for electro-magnetic clutch - Google Patents

Abstract

The present invention relates to a disc and a hub assembly for an electronic clutch, and aims to reduce the parts by improving the structure of the existing parts.

Disc and hub assembly for an electromagnetic clutch according to the present invention, the hub 110 is fixed to the compressor rotating shaft (1), is installed on the periphery of the hub and is optional to the pulley (3) by the field coil unit (2) The disk 120 is sucked into the, the ring-shaped buffer member 130 fitted to the flange portion 111 formed on the outer peripheral surface of one side end of the hub, and the inner and outer ends are respectively seated on one surface of the buffer member And leaf springs fixed to the disk, respectively. The flange portion of the hub has a ridge 111a protruding toward the buffer member, and the buffer member has an opening 132 into which the ridge portion of the flange is inserted. The leaf spring is pressed against and supported by the buffer member, the inner end of which is riveted to the ridge of the hub through the opening of the buffer member, and the outer end is riveted to the disk. Thereby, the riveting portion of the hub is fitted to the cushioning member, and the leaf spring supports the buffer member so that it does not come off, so that a separate supporting member for supporting the buffer member is unnecessary.

Compressor, Clutch, Disc, Leaf Spring, Shock Absorber

Description

Disk and hub assembly for electronic clutch {DISC AND HUB ASSEMBLY FOR ELECTRO-MAGNETIC CLUTCH}

1 is an exploded perspective view of a disk and hub assembly for an electronic clutch according to the present invention;

Figure 2 is a perspective view of the coupling state of the electronic clutch disk and hub assembly according to the present invention.

Figure 3 is a longitudinal cross-sectional view of the electronic clutch to which the disk and hub assembly for an electronic clutch according to the present invention is applied.

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

1: compressor rotating shaft, 2: field coil unit

3: pulley, 4: bolt

110: hub, 111: flange portion

111a: ridge, 120: disk

130: buffer member, 131: buffer portion

132: opening, 133: vertical

140: leaf spring,

The present invention relates to an electronic clutch disk and hub assembly, and more particularly, to an electronic clutch disk and hub assembly to improve the structure of the component to reduce the number of components.

Compressor constituting the automobile air conditioner is a device that selectively receives the power of the engine delivered through the pulley by the intermittent action of the electronic clutch to compress the refrigerant supplied from the evaporator and send it to the condenser.

As an example of such an electronic clutch, an electronic clutch has been proposed, for example, in Japanese Patent Laid-Open No. 11-325120.

The electromagnetic clutch according to the prior art is usually supported by the compressor side in the form of being inserted into a pulley that is constantly rotated by a bearing, such as a rotor connected to the engine and the belt and fixed integrally therein by driving the engine. A field coil unit generating suction magnetic flux upon application, and a disk and hub assembly fixed to the compressor rotating shaft and selectively adsorbed to the pulley by the field coil unit.

The disk and hub assembly is bolted at the end of the compressor shaft and provided with an outward flange at the end of the outer peripheral surface, and disposed on the periphery of the hub and selectively adsorbed to the pulley by the suction flux of the field coil unit Of the disk for transmitting the rotational force of the compressor to the compressor shaft, a buffer member installed on one side of the hub, a ring-shaped support member for covering the buffer member, and a restoring force for returning the disk to its original position when the field coil unit is turned off. It consists of a plurality of leaf springs to provide.                         

The hub is bolted to the compressor shaft, and consists of a flange portion formed on the outer peripheral surface of one end thereof.

The shock absorbing member includes a ring portion fitted to the hub, and a substantially fan-shaped line portion formed at regular intervals on the circumference of the ring portion.

The supporting member is formed in a ring shape, and a plurality of pressing portions are formed to support the pressing portion of the buffer member in the circumferential direction.

A plurality of leaf springs are employed, and both ends thereof are fixed to the hub and the disk by rivets or the like.

According to the conventional electronic clutch configured as described above, when a current is applied to the field coil unit, the disk is attracted to the pulley by the suction force generated by the disk and the rotation force of the pulley rotated by the engine of the vehicle Delivered to the compressor shaft. When the power is not applied to the field coil unit, the disk is detached from the pulley by the restoring force of the leaf spring and the compressor rotating shaft is stopped. When the disc is adsorbed on the pulley / falls off the pulley, the vibration imparted to the hub by the buffer member is absorbed.

However, the conventional electronic clutch has the following problems.

Since the flange portion of the hub has a flat structure, as a separate support member is used to fix the shock absorbing member to the hub, the manufacturing cost is high, and the assembly work of the parts increases, thereby reducing productivity.

The present invention is to solve the above problems, to provide an electronic clutch disk and hub assembly that can be fixed to the hub by using a conventional component to absorb the vibration transmitted to the hub. There is this.

The present invention for achieving the above object is a hub fixed to the compressor shaft; A buffer member installed at the hub; A disk disposed at the periphery of the hub and adsorbed to the pulley by suction flux by the field coil unit to selectively transmit power to the compressor shaft; In the disk and the hub assembly for an electronic clutch comprising a plurality of leaf springs disposed on one surface of the disk and the inner and outer ends thereof are respectively fixed to the hub and the disk to provide a restoring force to the disk.

A flange portion formed at one end of the hub has a ridge protruding toward the buffer member, and the buffer member has an opening to which the ridge is inserted while being coupled to one surface of the flange portion of the hub, and the leaf spring has the buffer spring. The member is in close contact with the flange portion of the hub and the inner end is fixed to the ridge through the opening of the buffer member.

The hub may be manufactured by sintering.

It is preferable that a vertical portion covering the outer circumference of the flange portion of the hub is further formed at the circumferential portion of the buffer member.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

As shown in FIGS. 1 to 3, the disc and hub assembly 100 for an electronic clutch according to the present invention includes a hub 110 fixed to an end of the compressor rotating shaft 1 (shown in FIG. 3), and a hub. It is disposed at the periphery of the 110 and is selectively adsorbed to the pulley 3 (shown in FIG. 3) by the suction flux of the field coil unit 2 (shown in FIG. 3), thereby reducing the rotational force of the pulley 3. The disk 120 and the shock absorbing member 130 coupled to one side of the hub 110, the inner and outer ends of the disk 110 to be transmitted to the compressor rotating shaft 1, respectively, are covered with the hub 110 and the disk, respectively. It consists of a plurality of leaf springs 140 riveted to 120.

1 and 3, the hub 110 is fixed to the compressor rotating shaft 1 (shown in FIG. 3) via a bolt 4 (shown in FIG. 3) or the like, and one side thereof. The flange part 111 is formed in the outer peripheral surface of an end part.

On the circumferential portion of the flange 111 of the hub 110, a ridge 111a in which the inner ends of the leaf springs 140 are riveted at regular intervals along the circumferential direction is formed to protrude toward the buffer member 130. The ridge 111a may be formed to protrude in the form of beads, and the hub 110 may be manufactured by sintering so that the ridge 111a may be easily manufactured when the ridge 111a is formed in the form of beads.

As shown in FIG. 1 and FIG. 2, the buffer member 130 is fixed to the plate-shaped buffer portion 131 having the same structure as the flange portion 111 of the hub 110, and to the outer circumferential edge of the buffer portion 131. It is formed at intervals and is formed at right angles to the opening 132 into which the ridge 111a of the hub 110 is inserted, and the circumference of the buffer portion 131 to form an outer circumference of the flange 111 of the hub 110. Wrapping is made of a vertical portion (133). In the state where the shock absorbing member 130 is fitted to the hub 110, the surface of the ridge 111a has the same height as the surface of the shock absorbing member 130.

As shown in FIG. 2, the leaf springs 140 are disposed to be inclined at an angle with respect to the radial direction to press the buffer member 130 so as not to be pulled out of the hub 110, and the inner end of the leaf spring 140 may be formed. It is riveted to the ridge 111a of the hub 110 through the opening 132 and its outer end is riveted to the riveting hole 121 of the disk 120.

The disk 120 is arranged side by side with the flange portion 111 on the periphery of the flange portion 111 of the hub 110, and at this time the leaf spring 140 is installed in a curved state to the leaf spring 140 By applying an initial load, the disk 120 is preferably disposed at a height lower than that of the buffer member 130 so that the disk 120 can be adsorbed only when a force of a predetermined magnitude or more is applied.

The action of the disk and hub assembly for an electronic clutch according to the present invention configured as described above is as follows.

When the air conditioner is turned on, a current is applied to the field coil unit 2 to generate a suction flux, and the disk 120 moves to the pulley 3 by the suction force by the suction flux. As the disk 120 moves toward the pulley 3, the outer end of the leaf spring 140 (the part riveted to the disk 120) is bent by the movement of the disk 120, and the elastic force is applied to the disk ( The adsorption of 120) is delayed. When the leaf spring 140 is deformed by the adsorption of the disk 120, the shock absorbing member 130 disposed between the leaf spring 140 and the hub 110 is compressed to delay the bending deformation of the leaf spring 140. As a result, the adsorption of the disk 120 is delayed.

The disk 120 maintains the state of being adsorbed to the pulley 3 by the suction force by the field coil unit 2 so that the rotational force is transmitted to the compressor rotating shaft 1, and the compressor rotating shaft 1 together with the pulley 3. As it rotates, the compressor is driven to cool the vehicle interior. In practice, as the power is applied to the field coil unit 2 intermittently by the control unit, not shown, adsorption to the pulley 3 is intermittently made.

On the other hand, when the operation of the air conditioner is stopped, the current applied to the field coil unit 2 is cut off, so that no suction flux is generated. In this case, the elastic force of the leaf spring 140 bent by the suction of the disk 120 is prevented. By the disk 120 is returned to its original state, and as the buffer member 130 is expanded to the original state by the restoring force of the buffer member 130 that was compressed by the leaf spring 140, the disk 120 is pulley ( In 3) fall quickly. As the disc 120 falls from the pulley 3, the compressor rotation shaft 1 no longer rotates, so the compressor stops driving.

Accordingly, the ridge 111a of the hub 110 is fitted into the opening 132 of the buffer member 130, and the vertical portion 133 of the buffer member 130 is the flange 111 of the hub 110. In addition to being fitted to the outer circumference, the leaf spring 140 is fastened so that the shock absorbing member 130 does not fall out of the hub 110, so that the shock absorbing member 130 is bound to the hub 110 so that the shock absorbing member does not fall out as in the related art. There is no need for a separate support member to support it.

As described above, according to the disk and hub assembly for an electronic clutch according to the present invention, the shock absorbing member is coupled to the hub by a leaf spring and the shape change of existing parts such as the hub and the shock absorbing member without employing a separate component. Since it is possible to reduce the manufacturing cost according to the reduction of parts, the weight is reduced, and the manufacturing process can be reduced.

While the invention has been described and illustrated in connection with a preferred embodiment for illustrating the principles of the invention, the invention is not limited to the configuration and operation as such is shown and described. Rather, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

Claims (3)

A hub 110 fixed to the compressor rotating shaft 1; A buffer member 130 installed at the hub; A disk (120) disposed at the periphery of the hub and adsorbed to the pulley (3) by suction magnetic flux by the field coil unit (2) to selectively transmit power to the compressor rotating shaft; In addition, the disk and hub assembly for an electronic clutch comprising a plurality of leaf springs 140 which are disposed on one surface of the disk and whose inner and outer ends are respectively fixed to the hub and the disk to provide restoring force to the disk. , A flange portion formed on an outer circumferential surface of one side end of the hub has a ridge 111a protruding toward the buffer member, and the buffer member has an opening 132 into which the ridge is inserted while being coupled to one surface of the flange portion of the hub. And the leaf spring adheres the buffer member to the flange portion of the hub and the inner end thereof is fixed to the ridge through the opening of the buffer member. The disk and hub assembly of claim 1, wherein the hub is manufactured by sintering. The disk and hub assembly of claim 1 or 2, wherein a vertical portion (133) is formed at a circumference of the buffer member to cover an outer circumference of the flange portion of the hub.

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