WO2020004757A1

WO2020004757A1 - Clutch and compressor comprising same

Info

Publication number: WO2020004757A1
Application number: PCT/KR2019/000689
Authority: WO
Inventors: 김정기; 송한모; 오성택
Original assignee: 한온시스템 주식회사
Priority date: 2018-06-27
Filing date: 2019-01-17
Publication date: 2020-01-02
Also published as: KR20200001374A

Abstract

The present invention relates to a clutch and a compressor comprising same. The clutch comprises: a hub capable of rotating together with a rotating shaft of the compressor; a disk capable of rotating together with the hub; a pulley rotated by power delivered thereto from a driving source; an elastic member for fastening the hub and the disk such that the disk can move toward or away from the pulley with reference to the hub; a field coil assembly configured such that the disk and the pulley make contact with each other or are spaced apart from each other; and an attenuation member interposed between the elastic member and the disk. The attenuation member comprises a distancing space between the hub and the disk, and a shield for covering at least a part of a slot of the disk. The elastic member comprises a shield vibration suppressing portion for suppressing vibration of the shield. Accordingly, it is possible to reduce noise and vibration occurring when the pulley and the disk make contact and are spaced apart from each other, and to prevent inflow of alien substances through the distancing space between the hub and the disk and the slot of the disk.

Description

Clutch and compressor including same

The present invention relates to a clutch and a compressor including the same, and more particularly, to a clutch and a compressor including the same, which are magnetized and demagnetized so as to selectively connect and disconnect a driving source and a rotating shaft. will be.

In general, a vehicle is provided with an air conditioning (A / C) for indoor air conditioning. Such an air conditioning apparatus includes a compressor as a configuration of a cooling system that compresses a low temperature low pressure gaseous refrigerant introduced from an evaporator into a high temperature high pressure gaseous refrigerant and sends it to a condenser.

The compressor has a reciprocating type to compress the refrigerant in accordance with the reciprocating motion of the piston and a rotary type to perform the compression while rotating. The reciprocating type includes a crank type for transferring to a plurality of pistons using a crank, a swash plate type for transferring to a rotating shaft provided with a swash plate, and a rotary type vane rotary type using a rotating rotary shaft and vanes. There are scrolling types that use orbital scrolling and fixed scrolling.

Such compressors typically include a rotating shaft that transmits rotational force to a compression mechanism for compressing the refrigerant, and includes a clutch for selectively connecting and disconnecting the drive source (for example, the engine) and the rotating shaft of the compressor, so as to generate power from the drive source. It is optionally configured to receive and operate.

Specifically, the compressor includes a casing, a compression mechanism provided inside the casing to compress the refrigerant, a rotation shaft for transmitting rotational force from the drive source (eg, an engine) provided outside the casing to the compression mechanism, and the driving source; And a clutch for selectively connecting and disconnecting the rotating shaft.

The clutch is a hub that is fastened to a rotating shaft and rotatable with the rotating shaft, a disk fastened to the hub to be rotatable with the hub, a pulley that is rotated by receiving power from a driving source, and the disk and the disk are fastened to each other. An elastic member for applying an elastic force to the disk in a direction away from the pulley while the disk is coupled to the hub so as to move in a direction closer to or away from the pulley relative to the hub and magnetized when the power is applied. And a field coil assembly moved to the pulley side to contact the disk and the pulley.

Here, the hub, the elastic member and the disk form a so-called disk hub assembly.

The compressor according to this configuration is operated as follows.

That is, the pulley is rotated by receiving a driving force from the driving source.

In this state, when power is applied to the field coil assembly, the disk is moved to the pulley side by the suction force caused by the magnetic induction of the field coil assembly to contact the pulley. That is, by coupling the disk and the pulley, the power of the driving source is transmitted to the rotating shaft through the pulley, the disk, the elastic member and the hub. The rotating shaft compresses the refrigerant by operating the compression mechanism with the received power.

On the other hand, when power is applied to the field coil assembly, suction force by magnetic induction of the field coil assembly is no longer generated, and the disk is moved away from the pulley by the elastic member to be spaced apart from the pulley. do. That is, transmission of power from the drive source to the rotation shaft is stopped. Then, the compression mechanism is stopped, the refrigerant compression is stopped.

However, in the conventional clutch and the compressor including the same, there is a problem in that noise and vibration due to contact and separation between the pulley and the disk cannot be attenuated. That is, considerable noise and vibration are generated when the pulley and the disk collide, and the noise and vibration generated when the pulley and the disk are rotated together in contact with each other are transmitted to the compressor, and the pulley and the disk are transmitted. There was a problem that a significant noise and vibration is generated by the repulsive force of the disk at the separation of.

In addition, there is a problem that foreign matter (for example, moisture) is introduced through the space between the hub and the disk and the slot of the disk.

Accordingly, an object of the present invention is to provide a clutch and a compressor including the same, which can reduce noise and vibration due to contact and separation between the pulley and the disk.

In addition, an object of the present invention is to provide a clutch and a compressor comprising the same, which can prevent foreign matters from entering through the space between the hub and the disk, the slot of the disk.

The present invention, in order to achieve the object as described above, the hub coupled to the rotary shaft of the compressor rotatable with the rotary shaft in a fixed position; A disk fastened to the hub and rotatable with the hub; A pulley rotated by receiving power from a drive source of the compressor; An elastic member configured to fasten the hub and the disk, and fasten the hub and the disk so that the disk is movable relative to or away from the pulley with respect to the hub; A field coil assembly that is magnetized when the power is applied to contact or space the disk and the pulley; And a damping member interposed between the elastic member and the disk, wherein the damping member includes a screen covering a space between the hub and the disk and at least a portion of a slot of the disk. Provided is a clutch including a screen vibration suppression unit for suppressing vibration of a screen.

The elastic member, the first annular portion fastened to the hub; A second annular portion formed in an annular shape accommodating the first annular portion and fastened to the disk; A bridge portion connecting the first annular portion and the second annular portion; And a protrusion protruding from the first annular portion toward the second annular portion, wherein the screen vibration suppressing portion is formed from at least one of the first annular portion, the second annular portion, the bridge portion, and the protrusion. It may be formed extending to the screen.

The damping member may include: a first damping member contacting the protrusion and the disk during a contact period and a separation period between the disk and the pulley; And a second damping member contacting at least one of the bridge portion and the second annular portion and the disk during the separation period between the disk and the pulley, wherein the shielding film includes the first damping member and the second damping member. It may be integrally formed with at least one of the damping members.

The first damping member may be engaged with the protrusion, and the protrusion may be formed to contact the disc with the first damping member while being deformed and restored in a direction away from and close to the pulley.

The screening film may be integrally formed with the first damping member, and the screening screen vibration suppressing part may extend from the protrusion.

A through hole may be formed in the protrusion, and the shielding film may be formed to block the through hole.

The screening film may include a riveting part fastened to the through hole.

The thickness of the first damping member in the state where the first damping member is removed from between the protrusion and the disk is called a first dimension, and the first damping member is peeled from between the protrusion and the disk and the disk is In a state spaced apart from the pulley, the distance between the protrusion and the disc is referred to as a second dimension, and in a state where the first damping member is removed from the protrusion and the disc and the disc is in contact with the pulley, When the spacing between the disks is a third dimension, the first dimension may be larger than the second dimension and the third dimension.

The second damping member may be formed to space the contact surface between the elastic member and the disk from the same position as the contact surface between the elastic member and the hub to the pulley side during the separation period between the disk and the pulley.

And the present invention, a casing; A compression mechanism provided inside the casing and compressing a refrigerant; A rotating shaft which transmits a rotational force from the driving source provided outside the casing to the compression mechanism; And a power transmission mechanism for selectively connecting and disconnecting the drive source and the rotation shaft, wherein the power transmission mechanism provides a compressor formed by a clutch according to any one of claims 1 to 9.

A clutch and a compressor including the same according to the present invention include a hub rotatably coupled with the rotary shaft of the compressor to be rotatable with the rotary shaft in a fixed position; A disk fastened to the hub and rotatable with the hub; A pulley rotated by receiving power from a drive source of the compressor; An elastic member configured to fasten the hub and the disk, and fasten the hub and the disk so that the disk is movable relative to or away from the pulley with respect to the hub; A field coil assembly that is magnetized when the power is applied to contact or space the disk and the pulley; And a damping member interposed between the elastic member and the disk, wherein the damping member includes a screen covering a space between the hub and the disk and at least a portion of a slot of the disk. By including the screen vibration suppression unit for suppressing the vibration of the screen, it is possible to reduce the noise and vibration due to the contact and separation between the pulley and the disk, and to prevent foreign matters from entering through the space between the hub and the disk, the slot of the disk. .

1 is a cross-sectional view showing a compressor including a clutch;

Figure 2 is an exploded perspective view showing a clutch according to an embodiment of the present invention,

3 is an exploded perspective view of the disk hub assembly of FIG. 2;

4 is a plan view illustrating a state in which the clutch of FIG. 2 is assembled;

5 is a bottom view of FIG. 4 in a state in which the pulley is removed;

6 is a bottom view showing a state in which the first damping member is removed from FIG. 5;

7 is a bottom view of FIG. 4 with pulleys and disks removed;

8 is a cross-sectional view taken along line II of FIG. 4;

9 is an enlarged view of a portion A of FIG. 8 in a state where the disk and the pulley are spaced apart from each other;

10 is an enlarged view of a portion B of FIG. 8 in a state where the disc and the pulley are spaced apart from each other;

FIG. 11 is an enlarged view of portion A of FIG. 8 in a state where the disk and the pulley are in contact with each other; FIG.

12 is an enlarged view of a portion B of FIG. 8 in a state where the disk and the pulley are in contact with each other.

Hereinafter, a clutch according to the present invention and a compressor including the same will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing a compressor including a clutch, FIG. 2 is an exploded perspective view showing a clutch according to an embodiment of the present invention, FIG. 3 is an exploded perspective view showing the disk hub assembly of FIG. 4 is a plan view illustrating a state in which the clutch of FIG. 2 is assembled, FIG. 5 is a bottom view of FIG. 4 with a pulley removed, and FIG. 6 is a bottom view illustrating a state in which the first damping member is removed in FIG. 5. FIG. 7 is a bottom view of FIG. 4 in a state in which a pulley and a disk are removed, FIG. 8 is a cross-sectional view taken along line II of FIG. 4, and FIG. 9 is a portion A of FIG. 8 in a state where the disc and the pulley are spaced apart from each other. 10 is an enlarged view of a portion B of FIG. 8 in a state where the disc and the pulley are spaced apart, and FIG. 11 is an enlarged view of a portion A of FIG. 8 in a state where the disc and the pulley are in contact, and FIG. 12 is a disc and the pulley. 8 is an enlarged view of a portion B in a contact state.

Referring to FIG. 1, a compressor according to an embodiment of the present invention includes a casing 1, a compression mechanism 2 provided inside the casing 1, and compresses a refrigerant. Selectively connecting the rotating shaft 3 and the driving source (not shown) and the rotating shaft 3 for transmitting a rotating force from the drive source (not shown) (for example, the engine) provided to the outside to the compression mechanism (2) and It may include a power transmission mechanism for separating.

The compression mechanism (2) is fastened to the piston (21), the rotary shaft (3) which is provided reciprocally in the bore of the casing (1) and rotates together with the rotary shaft (3) and the piston (21) It may include a swash plate 22 to reciprocate. Here, the compression mechanism (2), in the present embodiment is formed in the swash plate 22 method including the piston 21 and the swash plate 22, but is rotated by receiving the rotational force of the rotating shaft (3) It may be formed in various ways such as a scrolling method including a swing scroll and a fixed scroll meshed with the swing scroll.

The rotary shaft 3, one end is connected to the compression mechanism (2), the other end penetrates through the casing (1) protrudes out of the casing (1) and the disk hub assembly to be described later of the power transmission mechanism And (6).

The power transmission mechanism is magnetized when power is applied to connect the drive source (not shown) and the rotary shaft 3, and when the power is cut off, the electronic clutch separates the drive source (not shown) and the rotary shaft 3. (Hereinafter referred to as clutch) 4.

2 to 12, the clutch 4 is coupled to the pulley 5 and the rotation shaft 3 which are rotated by receiving power from the driving source (not shown) and the pulley 5. Optionally, the disk hub assembly 6 may be contacted and spaced apart, and the field coil assembly 7 may be magnetized when the power is applied to bring the pulley 5 into contact with the disk hub assembly 6.

The pulley 5, the pulley 5 is formed in a substantially annular, the drive belt (not shown) for transmitting a driving force from the drive source (not shown) to the pulley 5 on the outer peripheral surface of the pulley (5) Is rolled up, and a bearing for rotatably supporting the pulley 5 may be interposed between the inner circumferential surface of the pulley 5 and the outer surface of the casing 1.

In addition, one side of the pulley 5 is formed with a friction surface that is in contact with the disk 66, which will be described later of the disk hub assembly 6, the other side of the pulley 5, the field coil assembly 7 The field coil assembly receiving groove may be formed.

The disk hub assembly 6 is coupled to the rotary shaft 3, the hub 62 is rotatable together with the rotary shaft 3 in a fixed position, the hub 62 is fastened to the hub 62 And a disk 66 that is rotatable and selectively contacts and is spaced apart from the pulley 5, and an elastic member 64 fastening the hub 62 and the disk 66.

Here, the elastic member 64 is fastened to the hub 62 by the first fastening member 63 such as rivets on one side, and the second fastening member 65 such as rivets on the other side. The hub 62 and the disk 66 can be fastened by being fastened to the disk 66 by the above.

The hub 62 may include a boss portion 622 into which the rotation shaft 3 is inserted and a flange portion 624 extending from the boss portion 622.

The flange part 624 has a hub side fastening hole 624a into which the first fastening member 63 is inserted, and the hub side fastening hole 624a is formed of three, and the three hub side fastening holes are formed. 624a may be arranged at equal intervals along the direction of rotation.

Here, the first fastening member 63, the second fastening member 65, the hub side fastening hole 624a, the disk side fastening hole 66a to be described later, the first annular portion side fastening hole 642a to be described later ), The second annular portion side fastening hole 644a to be described later, the first fastening part P11 to be described later, the second fastening part P21 to be described later, the bridge part 646 to be described later, the protrusion 648 to be described later, The first attenuating member 682 and the second attenuating member 684 to be described later are each formed three, but the number thereof may be appropriately adjusted.

The disk 66 may be formed in an annular shape accommodating the hub 62.

In addition, the disk 66 has a disk side fastening hole 66a into which the second fastening member 65 is inserted, and the disk side fastening hole 66a is formed of three, and the three disk side fastenings are formed. The balls 66a may be arranged at equal intervals along the direction of rotation.

The elastic member 64 may be formed of SUS, steel, for example. Here, the material of the elastic member 64 may be appropriately changed.

In addition, the elastic member 64 is coupled to the rotation shaft 3 to support the disk 66 so as to move closer or away from the pulley 5 with respect to the hub 62 having a fixed position. can do.

In addition, the elastic member 64 has the disk 66 on the disk 66 so as to separate the disk 66 and the pulley 5 when power is cut off from the field coil assembly 7. It can be formed to apply an elastic force in a direction away from (5).

Here, in the present embodiment, the disk 66 and the pulley 5 are in contact with each other when the field coil assembly 7 is magnetized, and the disk 66 and the pulley are in the element of the field coil assembly 7. (5) is formed spaced apart. That is, the field coil assembly 7 is magnetized when the power is applied to move the disk 66 toward the pulley 5 to contact the disk 66 with the pulley 5 and the elastic member 64. Is formed to apply elastic force to the disk 66 in a direction away from the pulley 5. However, the present invention is not limited thereto, and the disc 66 and the pulley 5 are spaced apart when the field coil assembly 7 is magnetized, and the disc 66 and the element when the field coil assembly 7 is disposed. The pulley 5 may be formed in contact. That is, the field coil assembly 7 is magnetized when the power is applied to move the disk 66 in a direction away from the pulley 5 to separate the disk 66 from the pulley 5 and the elastic member. 64 may be formed to apply an elastic force to the disk 66 in a direction in which the disk 66 approaches the pulley 5.

On the other hand, the disk hub assembly 6 according to the present embodiment further includes a damping member 68 to attenuate the noise and vibration due to the contact and separation between the disk 66 and the pulley 5, the elastic The member 64 and the damping member 68 may be formed in a predetermined shape.

Specifically, when the pulley 5 and the disk 66 are in contact with each other, noise and vibration due to a collision between the pulley 5 and the disk 66 are generated, and the noise and vibration due to the collision are caused by the disk. 66, the elastic member 64 and the hub 62 may be delivered to the compressor. In addition, while the pulley 5 and the disk 66 are rotated in contact with each other, noise and vibration caused by the driving of the pulley 5 are transmitted to the disk 66, the elastic member 64, and the hub ( 62) to the compressor. When the disk 66 is spaced apart from the pulley 5 in the state where the disk 66 is in contact with the pulley 5, noise and vibration may be generated due to a collision between the disk 66 and the elastic member 64. Can be. The noise and vibration caused by contact and separation between the disk 66 and the pulley 5 may not only cause discomfort to the user but also adversely affect the behavior of the compressor.

In consideration of this, in the present embodiment, there is further provided a damping member 68 for attenuating noise and vibration due to contact and separation between the disk 66 and the pulley 5, the elastic member 64 and the Attenuating member 68 is the elastic and vibration from the disk 66 during the noise and vibration caused by the collision when the disk 66 is in contact with the pulley 5, the contact between the disk 66 and the pulley 5 It can be formed to reduce noise and vibration transmitted to the member 64 and noise and vibration due to a collision when the disc 66 is spaced from the pulley 5.

More specifically, the elastic member 64 is formed in an annular shape concentric with the hub 62 and the first annular portion 642 and the first annular portion 642 fastened to the hub 62. A second annular portion 644 formed in an annular receiving portion and fastened to the disc 66, a bridge portion 646 connecting the first annular portion 642 and the second annular portion 644, and the first annular portion 644; It may include a protrusion 648 protruding from the first annular portion 642 toward the second annular portion 644.

The first annular portion 642 may be formed to cover a space between the hub 62 and the disk 66. That is, the outer diameter of the first annular portion 642 is larger than the inner diameter of the disk 66, and the space between the hub 62 and the disk 66 is within the range of the first annular portion 642. It can be formed in.

The first annular portion 642 is formed with a first annular portion fastening hole 642a into which the first fastening member 63 is inserted, and the first annular portion side fastening hole 642a is the hub. Three side fastening holes 624a are formed to face each other, and the three first annular portion side fastening holes 642a may be arranged at equal intervals along the rotational direction.

The second annular portion 644 may be formed to cover the outer peripheral portion of the disk 66.

In addition, the second annular portion 644 is provided with a second annular portion side fastening hole 644a into which the second fastening member 65 is inserted, and the second annular portion side fastening hole 644a is the disk. It is formed in three so as to face the side fastening hole (66a), the three second annular portion side fastening hole (644a) may be arranged at equal intervals along the rotation direction.

At this time, the first annular portion side fastening hole 642a is formed in the elastic member 64 and the portion that is fastened to the hub 62 is called the first fastening portion (P11), the second annular portion side When the fastening hole 644a is formed and the part to be fastened to the disk 66 is called the second fastening part P21, the first fastening part P11 and the second fastening part P21 are formed in three pieces, respectively. The three first coupling parts P11 and the three second coupling parts P21 may be formed so as not to overlap each other in the rotational radial direction. That is, the three first fastening parts P11 are arranged at equal intervals along the rotation direction, and the three second fastening parts P21 are arranged at equal intervals along the rotation direction, and the three first fastening parts are arranged. Three portions (hereinafter, first intermediate portion) P12 between any first fastening portion P11 of the portion P11 and the first fastening portion P11 adjacent to the first fastening portion P11. The second fastening portion P21 of one of the second fastening portions P21 overlaps in the radial direction of rotation, and any second fastening portion P21 of any of the two second fastening portions P21 and any A portion between the second fastening part P21 adjacent to the second fastening part P21 (hereinafter, the second intermediate part) P22 is the first fastening part P11 of one of the three first fastening parts P11. It may be formed to overlap with the rotation radial direction. Here, the first intermediate portion P12 means an intermediate portion of two first fastening portions P11 adjacent to each other in the circumferential direction of the first annular portion 642, and the second intermediate portion P22 is The middle portion of the two second fastening portions P21 adjacent to each other in the circumferential direction of the second annular portion 644.

The bridge portion 646 is formed in three, and any bridge portion 646 of the three bridge portions 646 is one of the first coupling portion (P11) of the three first coupling portion (P11) and One of the three second intermediate parts P22 may be formed to overlap one of the second intermediate parts P22 in a rotational radial direction. That is, each bridge portion 646 may extend from the first fastening portion P11 to the second intermediate portion P22 in the rotational radial direction.

The protrusions 648 are formed in three, and any of the protrusions 648 of the three protrusions 648 is one of the second fastening portion (P21) and three of the second fastening portion (P21) of the three The first intermediate part P12 of the first intermediate part P12 may be formed to overlap in a rotational radial direction. That is, each of the protrusions 648 may extend from the first intermediate portion P12 to the second fastening portion P21 in the rotational radial direction. In this case, each of the protrusions 648 may not extend to each of the second fastening portions P21, but may extend only to a position opposite to the inner circumference of the disc 66.

The attenuation member 68 may be formed of, for example, acrylonitrile-butadiene rubber (NBR), isobutylene-isoprene rubber (IRR), ethylene propylene diene monomer rubber (EPDM), thermoplastic plastic, or thermosetting plastic. Here, the material of the damping member 68 may be appropriately changed.

In addition, the damping member 68 may be turned off to the field coil assembly 7 so that the disk 66 and the pulley 5 are separated from each other (hereinafter, referred to as a separation period) as well as the field coil assembly ( 7) a first damping member 682 in contact with the elastic member 64 and the disk 66 during a period (hereinafter, a contact period) in which power is applied to the disk 66 and the pulley 5. ) May be included.

The first damping member 682 extends from the first coupling portion 682a and the first coupling portion 682a coupled to the protrusion 648 toward the disk 66, and the protrusion 648 and the It may include a first damping portion 682b interposed between the disks 66 and in contact with the disks 66.

Here, the protrusion 648 and the first damping member 682, the first damping portion 682b, so that the first damping portion 682b is always in contact with the disk 66 (during the separation period and contact period), the first damping portion 682b may be formed to be compressed between the protrusion 648 and the disk 66 at all times (during the separation and contact periods).

That is, the thickness of the first damping portion 682b in the state where the first damping member 682 is removed from the protrusion 648 and the disk 66 is called a first dimension, and the first damping member 682 is removed from between the protrusion 648 and the disc 66 and the gap between the protrusion 648 and the disc 66 is removed with the disc 66 spaced apart from the pulley 5. It is referred to as two dimensions, the protrusion 648 in the state that the first damping portion 682b is removed from between the protrusion 648 and the disk 66 and the disk 66 is in contact with the pulley 5. If the distance between the disk 66 and the third dimension, the first dimension may be larger than the second dimension and the third dimension. At this time, the thickness and the interval is measured in the direction of the rotation axis (3).

On the other hand, in the present embodiment, the first damping member 682 is coupled to the protrusion 648, the protrusion 648 is always the first damping member 682 to the disk 66 (contact period And a spaced apart period) to press the first damping member 682 toward the disk 66. However, it is not limited thereto. That is, although not separately illustrated, the first damping member 682 may be coupled to the disk 66, and the protrusion 648 may be formed to press the first damping member 682.

The damping member 68 is in contact with the elastic member 64 and the disk 66 during the separation period, but is spaced apart from one of the elastic member 64 and the disk 66 during the contact period. The second damping member 684 may be further included.

The second damping member 684 is connected to the bridge portion 646 and the second intermediate portion P22 from the second coupling portion 684a and the second coupling portion 684a from the disk 66. A second damping portion extending to the side and interposed between the bridge portion 646 and the disk 66 and interposed between the second intermediate portion P22 and the disk 66 and contacting the disk 66. 684b).

Here, the bridge portion 646, the second intermediate portion (P22) and the second damping member 684, the second damping portion 684b is in contact with the disk 66 during the separation period, The second damping portion 684b may be formed to be compressed between the bridge portion 646 and the disk 66 and between the second intermediate portion P22 and the disk 66 during the separation period.

That is, the second damping member 684 is removed from the elastic member 64 (more precisely, between the bridge portion 646 and the second intermediate portion P22) and the disk 66. The thickness of the damping portion 684b is referred to as a fourth dimension, and the second damping member 684 is the elastic member 64 (more precisely, the bridge portion 646 and the second intermediate portion P22) and the disk. The elastic member 64 (more precisely, the bridge portion 646 and the second intermediate portion P22) and the disk with the disk 66 removed therefrom and the disk 66 spaced apart from the pulley 5. The spacing between 66 is referred to as a fifth dimension, and the second damping portion 684b includes the elastic member 64 (more precisely, the bridge portion 646 and the second intermediate portion P22) and the disk 66. ) Between the elastic member 64 (more precisely, the bridge portion 646 and the second intermediate portion P22) and the disk 66 in a state where the disk 66 is removed from the contact surface and the disk 66 is in contact with the pulley 5. ) If this distance d sixth dimension, the fourth dimension can be formed and less than the sixth dimension than the fifth dimension.

Meanwhile, in the present exemplary embodiment, the second damping member 684 is coupled to the bridge portion 646 and the second intermediate portion P22 and is formed to be in contact with and spaced apart from the disk 66. However, it is not limited thereto. That is, although not separately illustrated, the second damping member 684 may be coupled to the disk 66 and formed to be in contact with and spaced apart from the bridge portion 646 and the second intermediate portion P22.

In addition, in the present embodiment, the second damping member 684 is formed to be interposed between the bridge portion 646 and the disk 66 and between the second intermediate portion P22 and the disk 66. . However, it is not limited thereto. That is, although not separately illustrated, the second damping member 684 may be formed only between the bridge part 646 and the disk 66. Alternatively, the second damping member 684 may be formed only between the second intermediate portion P22 and the disk 66.

The field coil assembly 7 may include a coil housing and a coil accommodated in the coil housing and generating electromagnetic force when a power is applied.

The compressor according to this embodiment according to this configuration can be operated as follows.

That is, the pulley 5 may be rotated by receiving a driving force from the driving source (not shown).

In this state, when power is applied to the coil, the disk 66 may be moved to the pulley 5 side by the suction force caused by the magnetic induction of the coil to be in contact with the pulley 5. That is, by coupling the disk 66 and the pulley 5, the power of the driving source (not shown) is the pulley 5, the disk 66, the elastic member 64 and the hub 62. It can be transmitted to the rotating shaft (3) through. In addition, the rotating shaft 3 may compress the refrigerant by operating the compression mechanism 2 with the received power.

On the other hand, when power is applied to the coil, the suction force due to magnetic induction of the coil is no longer generated, and the disk 66 is moved away from the pulley 5 by the elastic force of the elastic member 64. May be moved away from the pulley 5. That is, power transmission from the driving source (not shown) to the rotation shaft 3 may be stopped. In addition, the compression mechanism (2) can be stopped, the refrigerant compression can be stopped.

Here, the clutch 4 and the compressor including the same according to the present embodiment include the elastic member 64 and the damping member 68, and thus the contact between the disk 66 and the pulley 5 and the separation thereof. Can reduce noise and vibration.

Specifically, the clutch 4 and the compressor including the same according to the present embodiment include the protrusion 648 and the first damping member 682, and the first damping member 682 is the protrusion 648. And the protrusion 648 is deformed and restored in a direction away from and close to the pulley as shown in FIGS. 9 and 11 to press the first damping member 682 toward the disk 66. The first damping member 682 (or more precisely, the first damping portion 682b) is formed to be in contact with the disk 66 at all times (during contact and separation), thereby allowing the disk 66 and the pulley. (5) It is possible to reduce the transmission of the noise and vibration due to the contact and separation between the elastic member (64).

That is, the first attenuating member 682 starts the application of power to the field coil assembly 7 and the protrusion 648 at the point of time (hereinafter, contact point) at which the disc 66 and the pulley 5 are in contact with each other. ) And the disk 66 can absorb noise and vibration due to a collision between the disk 66 and the pulley 5. As a result, the noise and vibration caused by the collision between the disk 66 and the pulley 5 at the point of contact can be reduced.

In addition, the first damping member 682 is in contact with the protrusion 648 and the disk 66 during the contact period, and thus, the pulley 5 is moved from the pulley 5 to the elastic member 64 through the disk 66. It can absorb the noise and vibration transmitted. Thereby, transmission of noise and vibration transmitted from the pulley 5 through the disk 66 during the contact period to the elastic member 64 can be reduced.

In addition, the first attenuating member 682 is cut off when the power applied to the field coil assembly 7 is cut off the disk 66 from the pulley 5 (hereinafter, the time of separation) the protrusion ( By contacting the disk 648 and the disk 66, the collision between the disk 66 and the elastic member 64 is prevented, and the impact transmitted to the elastic member 64 by the repulsive force of the disk 66 is prevented. Can be mitigated. As a result, the noise and vibration caused by the collision between the disk 66 and the elastic member 64 at the time of separation may be reduced to the elastic member 64.

In addition, the clutch 4 and the compressor including the same according to the present exemplary embodiment further include the second damping member 684, thereby making noise due to the collision between the disk 66 and the pulley 5 at the contact point. And further reduce vibration, and further reduce noise and vibration due to collision between the elastic member 64 and the disk 66 at the time of separation.

That is, the second damping member 684 is in contact with the elastic member 64 (more precisely, the bridge portion 646 and the second intermediate portion P22) and the disk 66 during the separation period. 2 due to the thickness of the damping member 684 (or more precisely, the second damping part 684b), the contact surface S2 between the elastic member 64 and the disk 66, the elastic member 64 and the hub ( 62) the contact surface S1 can be arranged on different planes. In this case, the second attenuating member 684 is formed in the bridge portion 646 and the second intermediate portion P22 of the elastic member 64, in particular, during the separation period. The contact surface S2 between the disk 66 may be spaced apart from the same position as the contact surface S1 between the elastic member 64 and the hub 62 toward the pulley 5. That is, the second damping member 684 may impart an initial bending deformation to the elastic member 64 during the separation period. The second damping member 684 acts in a direction in which the elastic force applied by the elastic member 64 to the disk 66 during the contact period including the contact point (the disk 66 moves away from the pulley 5). Force) can reduce the amount of impact between the disk 66 and the pulley 5 at the point of contact. As a result, noise and vibration generated by the collision between the disk 66 and the pulley 5 at the time of contact can be more effectively reduced to the elastic member 64.

In addition, the second damping member 684 is spaced apart from the disk 66 during the contact period, and then comes into contact with the disk 66 again during the separation period, whereby the disk 66 and the elastic member 64 are separated from each other. The collision between the two) can be more effectively prevented, and the impact transmitted to the elastic member 64 by the repulsive force of the disk 66 can be more effectively alleviated. As a result, the noise and vibration caused by the collision between the elastic member 64 and the disk 66 at the time of separation may be more effectively reduced.

In addition, the second damping member 684 may improve the responsiveness of the clutch 4. That is, the increase in the elastic force of the elastic member 64 by the second damping member 684 at a time when the disk 66 is changed from the contact period to the separation period at a faster speed than the pulley 5. By spaced apart, the response of the clutch 4 can be further improved.

On the other hand, the clutch and the compressor including the same according to the present embodiment may further include a screen 686 to prevent the inflow of foreign matter.

The shielding film 686 is formed such that the space between the hub 62 and the disk 66 and at least a portion of the slot 66b of the disk 66 are covered by the shielding film 686. It may be formed in a plate shape extending in the circumferential and radial directions of the disk 66 between the portion (P12) and the second fastening portion (P21).

In addition, the shielding film 686 may be integrally formed with the first damping member 682 to reduce manufacturing cost. That is, the damping member 68 may further include the shielding film 686, and the shielding film 686 may be integrally formed with the first damping member 682. In this case, the shielding film 686 may be formed in a plate shape extending in the circumferential and radial directions of the disk 66 from the first damping member 682 between the elastic member 64 and the disk 66. have.

Here, in the present exemplary embodiment, the shielding film 686 is integrally formed with the first damping member 682, but is not limited thereto. That is, the shielding film 686 may be integrally formed with the second damping member 684, or may be integrally formed with the first damping member 682 and the second damping member 684.

On the other hand, the screen 686 may vibrate when the disk 66 and the pulley 5 is in contact and spaced apart.

In consideration of this, the elastic member 64 extends from the protrusion 648 to a position opposite to the screen 686 to support the screen 686 to suppress the screen vibration of the screen 686. A suppressor 649 may further be included.

Here, in the present exemplary embodiment, the shielding vibration suppression unit 649 extends from the protrusion 648, but is not limited thereto. That is, the shielding film vibration suppressing unit 649 may be formed to extend from the one of the first annular portion, the second annular portion, and the bridge to a position opposite to the shielding film 686. Alternatively, the blocking film vibration suppressing part 649 may be formed to extend from the at least two of the first annular part, the second annular part, the bridge part, and the protruding part to a position opposite to the blocking film 686.

However, as shown in the present embodiment, the screen 686 is fastened to the first attenuating member 682 which is fastened to the protrusion 648 and moves in a direction toward and away from the pulley 5 together with the protrusion 648. ) Is integrally formed, it may be preferable that the screen vibration suppressing portion 649 extends from the protrusion 648 to move together with the screen 686 and support the screen 686. .

And, in another embodiment, the shielding film 686 is formed integrally with the first damping member 682, when the first damping member 682 is fastened to the disk 66, the shielding film ( In order to move together with and support the screen 686, it may be desirable for the screen vibration suppressing part 649 to extend from the second annular part 644.

In another embodiment, the shielding film 686 is integrally formed with the second damping member 684, and the second damping member 684 is the bridge portion 646 and the second intermediate portion P22. In the case of fastening with at least one of), in order to support the screen 686 without position fluctuations, the screen vibration suppressing part 649 may include the first fastening part P11, the bridge part 646, and the It may be desirable to extend from at least one of the second intermediate portions P22.

In another embodiment, when the shielding film 686 is integrally formed with the second damping member 684, and the second damping member 684 is fastened to the disk 66, the shielding film 686 In order to move together with and support the screen 686, the screen vibration suppression part 649 may preferably extend from at least one of the protrusion part 648 and the second intermediate part P22. .

Meanwhile, a through hole 648a penetrating the protrusion 648 may be formed in the protrusion 648 to adjust the rigidity (elasticity) of the protrusion 648. That is, the protrusion 648 is deformed and restored as described above. When the rigidity of the protrusion 648 is greater than a predetermined level, the protrusion 648 is not easily deformed, and the protrusion 648 is not. ) May excessively compress the first damping member 682. On the other hand, when the rigidity of the protrusion 648 is less than a predetermined level, the protrusion 648 may be deformed or permanently deformed too easily, the protrusion 648 may be difficult to recover, and the protrusion ( 648 may not properly compress the first damping member 682. In consideration of this, in the present embodiment, the through hole 648a is provided, and when the stiffness of the protrusion 648 is greater than a predetermined level, the size of the through hole 648a is increased to increase the protrusion 648. By reducing the width of the stiffness of the protrusion 648 can be adjusted to a predetermined level. In addition, when the rigidity of the protrusion 648 is smaller than a predetermined level, the rigidity of the protrusion 648 may be reduced by increasing the width of the protrusion 648 by reducing the size of the through hole 648a. You can adjust the level.

Here, in the present embodiment, for the formation of the through hole 648a and easy size adjustment, the protrusion 648 has a bottom side opposite one of the vertices facing the inner circumference of the disk 66. The first annular portion 642 may be formed in a substantially triangular shape, and the through hole 648a may be formed in a central portion of the triangular protrusion 648. However, it is not limited thereto. That is, although not separately shown, if the protrusion 648 is a cantilever type that protrudes from the first annular portion 642 to a position opposite to the inner circumferential portion of the disk 66, the shape of the protrusion 648 is limited. The through hole 648a may be intaglio from an outer circumferential surface of the protrusion 648.

On the other hand, when the through hole 648a is formed, foreign matter may flow through the through hole 648a.

In consideration of this, the shielding film 686 may be formed to block the through hole 648a.

That is, the shielding film 686 may extend to a position opposite to the through hole 648a.

Alternatively, as shown in the present embodiment, the shielding film 686 may include a riveting part 686a inserted into and fastened to the through hole 648a. In this case, the riveting part 686a not only prevents the inflow of foreign matter through the through hole 648a, but also fixes the screen 686 to the protrusion 648 to further vibrate the screen 686. It can be suppressed.

The present invention is to reduce the noise and vibration caused by the contact and separation between the pulley and the disk, and the clutch and the compressor including the same that can prevent foreign matter from flowing through the space between the hub and the disk and the slot of the disk. to provide.

Claims

A hub 62 coupled to the rotary shaft 3 of the compressor and rotatable together with the rotary shaft 3 in a fixed position;

A disk 66 fastened to the hub 62 and rotatable with the hub 62;

A pulley 5 which is rotated by receiving power from a drive source of the compressor;

The hub 62 and the disk 66 are fastened, and the hub 62 and the disk 66 are movable so as to move toward or away from the pulley 5 with respect to the hub 62. An elastic member 64 for fastening the disk 66;

A field coil assembly (7) which is magnetized upon application of power to contact or space the disc (66) and the pulley (5); And

A damping member 68 interposed between the elastic member 64 and the disk 66;

The damping member 68 includes a screen 686 covering a space between the hub 62 and the disk 66 and at least a portion of the slot 66b of the disk 66.

The elastic member (64) has a clutch vibration suppressing portion (649) for suppressing the vibration of the shielding film (686).
The method of claim 1,

The elastic member 64,

A first annular portion 642 fastened to the hub 62;

A second annular portion 644 formed in an annular shape accommodating the first annular portion 642 and fastened to the disk 66;

A bridge portion 646 connecting the first annular portion 642 and the second annular portion 644; And

And a protrusion 648 protruding from the first annular portion 642 toward the second annular portion 644.

The shielding vibration suppression part 649 extends toward at least one of the first annular portion 642, the second annular portion 644, the bridge portion 646, and the protrusion 648 toward the shielding membrane 686. Clutch shaped.
The method of claim 2,

The damping member 68,

A first damping member 682 in contact with the protruding portion 648 and the disk 66 during a contact period and a separation period between the disk 66 and the pulley 5; And

A second damping member 684 in contact with at least one of the bridge portion 646 and the second annular portion 644 and the disc 66 during a separation period between the disc 66 and the pulley 5; More,

The screen 686 is integrally formed with at least one of the first damping member 682 and the second damping member 684.
The method of claim 3,

The first damping member 682 is fastened to the protrusion 648,

The protrusion (648) is characterized in that the first damping member (682) in contact with the disk (66) while being deformed and restored in a direction away from and close to the pulley (5).
The method of claim 4, wherein

The shielding film 686 is integrally formed with the first damping member 682,

Clutch vibration suppression portion (649) is formed extending from the protrusion (648) clutch.
The method of claim 5,

The protrusion 648 has a through hole 648a is formed,

The shielding film 686 is formed to block the through hole (648a).
The method of claim 6,

The screen 686 includes a riveting portion 686a fastened to the through hole 648a.
The method of claim 3,

A thickness of the first damping member 682 in a state where the first damping member 682 is removed from the protrusion 648 and the disk 66 is referred to as a first dimension.

In the state where the first damping member 682 is removed from between the protrusion 648 and the disc 66 and the disc 66 is spaced apart from the pulley 5, the protrusion 648 and the disc ( 66) the spacing between the second dimension,

In the state where the first damping member 682 is removed from between the protrusion 648 and the disk 66 and the disk 66 is in contact with the pulley 5, the protrusion 648 and the disk ( 66) If the spacing between them is the third dimension,

And the first dimension is greater than the second dimension and the third dimension.
The method of claim 3,

The second damping member 684 may contact the elastic member 64 with the elastic member 64 and the contact surface S2 between the elastic member 64 and the disk 66 during the separation period between the disk 66 and the pulley 5. Clutch, characterized in that spaced apart from the same position as the contact surface (S1) between the hub (62) toward the pulley (5).
Casing 1;

A compression mechanism (2) provided inside the casing (1) and compressing a refrigerant;

A rotating shaft (3) for transmitting a rotating force from the drive source provided outside the casing (1) to the compression mechanism (2); And

And a power transmission mechanism for selectively connecting and disconnecting the drive source and the rotation shaft 3.

The power transmission mechanism is formed with a clutch (4) according to any one of the preceding claims.