KR102040969B1 - Control device for compression amount of swash plate type compressor - Google Patents

Control device for compression amount of swash plate type compressor Download PDF

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Publication number
KR102040969B1
KR102040969B1 KR1020140134492A KR20140134492A KR102040969B1 KR 102040969 B1 KR102040969 B1 KR 102040969B1 KR 1020140134492 A KR1020140134492 A KR 1020140134492A KR 20140134492 A KR20140134492 A KR 20140134492A KR 102040969 B1 KR102040969 B1 KR 102040969B1
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South Korea
Prior art keywords
discharge
suction
valve plate
lead
plate
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KR1020140134492A
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Korean (ko)
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KR20160040934A (en
Inventor
이동주
김승길
윤덕빈
이원철
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한온시스템 주식회사
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  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)

Abstract

The present invention relates to a compression amount adjusting device of a swash plate type compressor, between the cylinder block 100 and the front housing 200 of the compressor 10 and between the cylinder block 100 and the rear housing 300, respectively. The suction holes 412 and the discharge holes are provided at positions corresponding to the positions of the suction chambers 250 and 350 and the discharge chambers 270 and 370 and the suction chambers 250 and 350 and the discharge chambers 270 and 370. 414 is a disk-shaped valve plate 410 formed through each, a disk-shaped suction lead plate 430 coupled to one surface of the valve plate 410 to open and close the suction hole 412, and the valve plate It is coupled to the other surface of the 410 includes a discharge lead 450 for opening and closing the discharge hole 414, the valve plate 410 is provided along the flow direction of the refrigerant discharged through the discharge hole 414 It may include a plurality of magnetic material 416 to be. According to the present invention, it is possible to prevent the discharge ribs from being damaged by the metallic foreign substances by removing the metallic foreign substances such as steel chips floating in the assembly using the magnetic material. Therefore, the service life of the valve assembly is long, and the reliability of the compressor is improved.

Description

Control device for compression amount of swash plate type compressor}

The present invention relates to a compression amount control device for a swash plate compressor, and more particularly, to a compression amount control device for a swash plate compressor that can prevent the discharge lead from being damaged by foreign matter remaining inside the compressor during refrigerant discharge. It is about.

In general, the compressor applied to the air conditioning system sucks the gas refrigerant passed through the evaporator, compresses it into a state of high temperature and high pressure gas refrigerant, and discharges it to the condenser. It is used.

Among such compressors, a compressor using an electric motor as a power source is commonly referred to as an electric compressor, and a swash plate compressor is one of many types of air conditioners for vehicles.

In the swash plate type compressor, a disk-shaped swash plate is inclinedly installed on a driving shaft that is rotated by the power of the engine, and rotates by a driving shaft. It is a principle to discharge gas by inhalation or compression.

In the swash plate type compressor, the compression amount of the refrigerant is controlled by a valve assembly as disclosed in Korean Patent Application Publication No. 2012-0133205. The valve assembly is provided with suction lead plates and discharge leads on both sides of the valve plate. The suction lead plate and the discharge lead are made of an elastically deformable material. The suction lead plate and the discharge lead are elastically deformed according to the internal pressure of the cylinder bore to open and close the suction hole for sucking the refrigerant and the discharge hole for discharging the refrigerant.

However, in the conventional valve assembly, when the refrigerant is discharged through the discharge hole, metallic foreign substances such as steel chips remaining in the swash plate type compressor may be discharged together. The steel chip remains inside the valve assembly and floats according to the flow of the flow, and may be caught between the discharge leads and the valve plate, causing damage to the discharge leads. Steel chips are easily generated due to friction while steel components are operating, but since the occurrence of steel chips cannot be prevented, measures to prevent damage caused by steel chips are needed.

Korean Patent Publication No. 2012-0133205 (published Dec. 10, 2012)

An object of the present invention is to provide a compression amount control device of a swash plate type compressor that can prevent the discharge lead from being damaged by foreign matter remaining in the compressor during discharge of the refrigerant.

The compression amount adjusting device of the swash plate compressor of the present invention is provided between the cylinder block 100 and the front housing 200 of the compressor 10 and between the cylinder block 100 and the rear housing 300, respectively. Suction holes 412 and discharge holes 414 at positions corresponding to positions of the suction chambers 250 and 350 and the discharge chambers 270 and 370, and the suction chambers 250 and 350 and the discharge chambers 270 and 370. Each of the disk-shaped valve plate 410 formed therethrough, the disk-shaped suction lead plate 430 coupled to one surface of the valve plate 410 to open and close the suction hole 412, and the valve plate 410 And a discharge lead 450 coupled to the other surface of the valve to open and close the discharge hole 414, wherein the valve plate 410 is provided along a flow direction of the refrigerant discharged through the discharge hole 414. It may include a magnetic body 416 of.

The magnetic body 416 has a curved shape surrounding the end of the discharge lead 450 in a state in which the discharge lead 450 closes the discharge hole 414.

A suction gasket 470 coupled to one surface of the suction lead plate 430 facing in the opposite direction to the valve plate 410, and one surface of the discharge lead 450 facing in the opposite direction to the valve plate 410 It may further include a head gasket 490 to be coupled.

The magnetic bodies 472 and 492 may be provided on the suction gasket 470 or the head gasket 490.

The magnetic bodies 472 and 492 may be provided at positions corresponding to the flow direction of the refrigerant discharged through the discharge holes 414.

In addition, the compression amount adjusting device of the swash plate compressor of the present invention, the suction is provided between the cylinder block 100 and the front housing 200 of the compressor and between the cylinder block 100 and the rear housing 300, respectively. Suction holes 412 and discharge holes 414 at positions corresponding to positions of the chambers 250 and 350 and the discharge chambers 270 and 370 and the suction chambers 250 and 350 and the discharge chambers 270 and 370. Each of the disk-shaped valve plate 410 formed therethrough, the disk-shaped suction lead plate 430 coupled to one surface of the valve plate 410 to open and close the suction hole 412, and the valve plate 410 The discharge lead 450 coupled to the other surface of the suction hole 414 to open and close the discharge hole 414 and the suction gasket 470 coupled to one surface of the suction lead plate 430 facing away from the valve plate 410. And on one surface of the discharge lead 450 facing in the opposite direction to the valve plate 410. It includes a head gasket 490, which is provided in at least one of the valve plate 410, the suction gasket 470, the head gasket 490, the flow direction of the refrigerant discharged through the discharge hole 414 It may include a plurality of magnetic material 416 provided along the.

The magnetic body 416 has a curved shape surrounding the end of the discharge lead 450 in a state in which the discharge lead 450 closes the discharge hole 414.

The compression amount control apparatus of the swash plate compressor according to an embodiment of the present invention can prevent the discharge ribs from being damaged by the metallic foreign substances by removing the metallic foreign substances such as steel chips floating in the assembly using the magnetic substance. Therefore, the service life of the valve assembly is long, and the reliability of the compressor is improved.

1 is a cross-sectional view showing a swash plate compressor according to an embodiment of the present invention;
Figure 2 is an exploded perspective view showing a compression amount control device of the swash plate compressor according to an embodiment of the present invention,
3 is a plan view showing the main configuration of the compression amount adjusting device according to an embodiment of the present invention,
4 and 5 are a perspective view showing a compression amount adjusting device of the swash plate compressor according to another embodiment of the present invention.

Hereinafter, with reference to the drawings, it will be described in detail with respect to the compression amount of the swash plate compressor according to an embodiment of the present invention.

1 is a cross-sectional view showing a swash plate compressor according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing a compression amount control apparatus of the swash plate compressor according to an embodiment of the present invention, Figure 3 It is a top view which shows the main structure of the compression amount control apparatus which concerns on one Embodiment of this invention.

As shown in Figure 1, the swash plate compressor 10 according to an embodiment of the present invention and the cylinder block 100 to form an appearance, the front housing 200 is coupled to the front of the cylinder block 100 and , A rear housing 300 coupled to the rear of the cylinder block 100, and a driving unit provided therein.

The driving unit is a pulley (not shown) receiving power of the engine, a drive shaft 210 rotatably installed at the center of the front housing 200 and coupled to the pulley, and a swash plate 400 coupled to the drive shaft 210. It consists of. In addition, the cylinder block 100 is provided with a plurality of cylinder bores 110 along the circumferential direction, and a piston is inserted into the cylinder bore 110. The piston 112 is connected to the swash plate 400 so as to move back and forth along the longitudinal direction in the cylinder bore 110 in accordance with the rotation of the swash plate 400 to suck the refrigerant or to compress the refrigerant inside the cylinder bore 110 do. The rear housing 300 is provided with a control valve (not shown) to adjust the refrigerant pressure in accordance with the cooling load. The control valve communicates the discharge chamber 330 through which the refrigerant is discharged with the crank chamber 230 formed in the front housing 200, and controls the differential pressure between the refrigerant suction pressure in the cylinder bore 110 and the gas pressure in the crank chamber 230. By varying the inclination angle of the swash plate 400 to adjust the refrigerant discharge amount and pressure.

1 and 2, between the cylinder block 100 and the front housing 200, and between the cylinder block 100 and the rear housing 300, the suction chambers 250 and 350 and the discharge chamber, respectively. 270 and 370 are formed. In addition, the valve assembly 400 is located between the front suction chamber 250 and the discharge chamber 270 and the front housing 200, and between the rear suction chamber 350 and the discharge chamber 370 and the rear housing 300. ) Is provided.

The valve assembly 400 includes a disk-shaped valve plate 410 made of a metal material such as steel, a disk-shaped suction lead plate 430 coupled to one surface of the valve plate 410, and a valve plate. The discharge lead 450 is coupled to the other surface of the 410. A disk-shaped suction gasket 470 may be coupled to the other side of the suction lead plate 430, and a disk-shaped head gasket 490 may be coupled to the other side of the discharge lead 450.

The discharge plate 414 and the suction hole 412 are formed in the valve plate 410 at a position corresponding to each cylinder bore 110, and the discharge hole 414 and the suction hole 412 are the suction chamber 250. , 350 and the discharge chambers 270 and 370.

The suction lead plate 430 and the discharge lead 450 are formed to be elastically deformable and elastically deformed according to the change in the internal pressure of the cylinder bore 110 to open and close the suction hole 412 and the discharge hole 414, respectively.

Meanwhile, as shown in FIG. 3, the valve plate 410 may be provided with a plurality of magnetic bodies 416 having magnetic properties.

The magnetic body 416 is preferably disposed in a portion adjacent to the discharge hole 414, the shape of the magnetic body 416 has a curved shape surrounding the outer portion of the discharge hole 414 relative to the end of the discharge lead 450 It may be provided. This is because generally, when the refrigerant is compressed and discharged through the discharge hole 414, the refrigerant has a flow that is likely to be injected toward the end of the discharge lead 450. That is, since the metallic foreign substances such as steel chips mixed in the refrigerant will also flow toward the end of the discharge lead 450 in accordance with the flow of the refrigerant, the magnetic body 416 is located at the end of the discharge lead 450. To be placed. When the magnetic body 416 is disposed outside the end of the discharge lead 450, metallic foreign substances in the refrigerant discharged through the discharge hole 414 are attracted to the magnetic body 416 according to the flow of the refrigerant. Therefore, since the metallic foreign matter is attracted to the magnetic body 416 and attached to the magnetic body 416, the metallic foreign matter may enter between the discharge lead 450 and the valve plate 410 so as not to damage the discharge lead 450.

In the above-described embodiment, the magnetic material is provided in the valve plate, but the magnetic material may be provided in other components as long as it can be disposed adjacent to the discharge hole.

4 and 5 are perspective views showing a compression amount control device of a swash plate compressor according to another embodiment of the present invention (the same configuration as the above-described embodiment will be omitted).

As shown in FIG. 4, in the compression amount adjusting device of the swash plate compressor according to another embodiment of the present disclosure, a magnetic body 472 may be provided on the suction gasket 470.

As shown in FIG. 5, in the compression amount adjusting device of the swash plate compressor according to another embodiment of the present invention, a magnetic body 492 may be provided on the head gasket 490.

Even when the magnetic bodies 472 and 492 are provided on the suction gasket 470 or the head gasket 490, the positions of the magnetic bodies 472 and 492 are preferably formed at positions corresponding to the discharge flow direction of the refrigerant. That is, the magnetic bodies 472 and 492 may be disposed along the end outer direction of the discharge lead 450, which is a direction in which the refrigerant is discharged, and may surround the direction corresponding to the outer position of the discharge hole 414.

In the above embodiments, the magnetic material is described as an example of a curved shape such as a 'U' shape, but a circular or straight magnetic material may be arranged in a 'U' curved shape surrounding the discharge hole (not shown in the drawing). Not). That is, the magnetic body is provided in correspondence with the flow direction when discharging the coolant, and is not limited to the shape or position if the magnetic material is disposed at a position capable of effectively collecting metallic foreign matter contained in the coolant.

An embodiment of the present invention described above and illustrated in the drawings should not be construed as limiting the technical spirit of the present invention. The scope of the present invention is limited only by the matters described in the claims, and those skilled in the art can improve and change the technical idea of the present invention in various forms. Therefore, as long as such improvements and modifications are obvious to those skilled in the art, they will fall within the scope of the present invention.

100: cylinder block 110: cylinder bore
112: piston 200: front housing
250: suction chamber 270: front discharge chamber
300: rear housing 350: rear suction chamber
370: rear discharge chamber 400: valve assembly
410: valve plate 430: suction lead plate
450: discharge lead 470: suction gasket
490: head gasket 416, 472, 492: magnetic material
400: swash plate

Claims (8)

Suction chambers 270 and 320 and discharge chambers 290 provided between the cylinder block 100 and the front housing 200 of the compressor 10 and between the cylinder block 100 and the rear housing 300, respectively. 330),
A disk-shaped valve plate 410 in which suction holes 412 and discharge holes 414 penetrate at positions corresponding to positions of suction chambers 250 and 350 and discharge chambers 290 and 330, respectively;
A disk-shaped suction lead plate 430 coupled to one surface of the valve plate 410 to open and close the suction hole 412;
It is coupled to the other surface of the valve plate 410 includes a discharge lead 450 for opening and closing the discharge hole 414,
The valve plate 410 includes a plurality of magnetic bodies 416 provided along the flow direction of the refrigerant discharged through the discharge hole 414,
The magnetic body 416 is spaced outward in the radial direction of the discharge hole 414 is round in the direction facing each other, the swash plate, characterized in that located facing the outside of the radial end of the discharge lead 450 Compression control device of the compressor. The method of claim 1,
The magnetic body 416 is a compression amount regulating device of the swash plate compressor characterized in that the discharge lead 450 has a curved shape surrounding the end of the discharge lead 450 in a state in which the discharge hole 414 is closed . The method of claim 1,
A suction gasket 470 coupled to one surface of the suction lead plate 430 facing in the opposite direction to the valve plate 410, and one surface of the discharge lead 450 facing in the opposite direction to the valve plate 410 Compression amount control device of the swash plate compressor further comprises a head gasket (490) to be coupled. delete delete Suction chambers 250 and 350 and discharge chambers 270 and 370 provided between the cylinder block 100 and the front housing 200 of the compressor and between the cylinder block 100 and the rear housing 300, respectively. ,
A disk-shaped valve plate 410 in which suction holes 412 and discharge holes 414 penetrate at positions corresponding to positions of the suction chambers 250 and 350 and the discharge chambers 270 and 370, respectively;
A disc-shaped suction lead plate 430 coupled to one surface of the valve plate 410 to open and close the suction hole 412, and coupled to the other surface of the valve plate 410 to open and close the discharge hole 414. Discharge lead 450,
A suction gasket 470 coupled to one surface of the suction lead plate 430 facing away from the valve plate 410,
And a head gasket 490 coupled to one surface of the discharge lead 450 facing in a direction opposite to the valve plate 410,
Is provided in at least one of the valve plate 410, the suction gasket 470, the head gasket 490, and includes a plurality of magnetic material provided along the flow direction of the refrigerant discharged through the discharge hole 414 ,
The plurality of magnetic bodies are spaced radially outward of at least one of the valve plate 410, the suction gasket 470, the head gasket 490, the compression amount of the swash plate type compressor is formed rounded toward the discharge direction of the refrigerant Device. The method of claim 6,
The magnetic material of claim 4, wherein the discharge lead 450 has a curved shape surrounding the end of the discharge lead 450 in a state in which the discharge hole (414) closed. The method of claim 6,
The magnetic material is the compression amount control device of the swash plate compressor, characterized in that provided in a position corresponding to the flow direction of the refrigerant discharged through the discharge hole (414).
KR1020140134492A 2014-10-06 2014-10-06 Control device for compression amount of swash plate type compressor KR102040969B1 (en)

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KR1020140134492A KR102040969B1 (en) 2014-10-06 2014-10-06 Control device for compression amount of swash plate type compressor

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KR102040969B1 true KR102040969B1 (en) 2019-11-06

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101300638B1 (en) * 2010-11-25 2013-08-27 가부시키가이샤 도요다 지도숏키 Differnial pressure control valve and variable displacement compressor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101463834B1 (en) * 2009-01-14 2014-11-20 엘지전자 주식회사 Valve device and hermetic compressor having the same
KR101640366B1 (en) * 2010-01-08 2016-07-18 한온시스템 주식회사 Compression volume of regulation apparatus swash plate type compressor
KR20120133205A (en) 2011-05-31 2012-12-10 한라공조주식회사 Compressor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101300638B1 (en) * 2010-11-25 2013-08-27 가부시키가이샤 도요다 지도숏키 Differnial pressure control valve and variable displacement compressor

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