KR20230155642A - Scroll compressor - Google Patents

Abstract

The present invention relates to a scroll compressor, comprising: a housing; a motor that generates rotational force within the housing; a shaft rotated by the motor; a turning scroll driven in a turning motion by the shaft; a fixed scroll engaged with the orbiting scroll and forming a compression chamber together with the orbiting scroll; and a main frame supporting the orbiting scroll, wherein the housing is coupled to the front housing and the motor, the shaft, the orbiting scroll, the fixed scroll, and the main frame are accommodated together with the front housing. It includes a rear housing that forms a receiving space, and the fastening member for fastening the front housing, the main frame, the fixed scroll, and the rear housing is inserted into a fastening member chamber partitioned from the receiving space, so that the fluid in the housing Leakage to the outside can be suppressed.

Description

Scroll compressor{SCROLL COMPRESSOR}

The present invention relates to a scroll compressor, and more specifically, to a scroll compressor capable of compressing refrigerant with a fixed scroll and a rotating scroll.

Generally, automobiles are equipped with air conditioning (A/C) for interior cooling and heating. The air conditioning device is a component of a cooling system and includes a compressor that compresses low-temperature, low-pressure gaseous refrigerant introduced from the evaporator into high-temperature, high-pressure gaseous refrigerant and sends it to the condenser.

The compressor includes a reciprocating type that compresses the refrigerant through the reciprocating motion of the piston and a rotary type that performs compression while rotating the piston. The reciprocating type includes a crank type that transmits power to a plurality of pistons using a crank depending on the power transmission method, a swash plate type that transmits power to a rotating shaft on which a swash plate is installed, and the rotating type uses a rotating rotary shaft and vanes. There is a vane rotary type that uses a rotating scroll and a scroll type that uses a fixed scroll.

Scroll compressors are widely used for refrigerant compression in air conditioning systems, etc., because they have the advantage of being able to obtain a relatively high compression ratio compared to other types of compressors and obtaining stable torque through smooth suction, compression, and discharge strokes of the refrigerant.

Figure 1 is a cross-sectional view showing a conventional scroll compressor.

Referring to FIG. 1, a conventional scroll compressor includes a housing 10, a motor 20 that generates rotational force inside the housing 10, a shaft 30 rotated by the motor 20, and the shaft. It includes an orbiting scroll 50 that rotates by (30) and a fixed scroll 60 that is engaged with the orbiting scroll 50 and forms a compression chamber together with the orbiting scroll 50.

Here, the housing 10 includes a front housing 12 that accommodates the motor 20, a center housing 14 fastened to the front housing 12 on one side and the fixed scroll 60 on the other side, A rear housing (16) having a discharge chamber for accommodating fluid (refrigerant and oil) discharged from the compression chamber and fastened to the fixed scroll (60) on the opposite side of the center housing (14) with respect to the fixed scroll (60). ), and the orbiting scroll 50 is interposed between the center housing 14 and the fixed scroll 60.

In this conventional scroll compressor, when power is applied to the motor 20, the shaft 30 is rotated by the motor 20, and the orbiting scroll 50 rotates by the shaft 30. A series of processes in which the fluid accommodated in the space where the motor 20 is accommodated is sucked into the compression chamber, compressed, and then discharged into the discharge chamber may be repeated due to the orbital movement of the orbiting scroll 50.

However, in this conventional scroll compressor, the fluid in the housing 10 flows between the front housing 12 and the center housing 14, between the center housing 14 and the fixed scroll 60, and the fixed scroll compressor. There was a problem of leakage between the scroll 60 and the rear housing 16. As a result, there was a problem in that the performance of the compressor deteriorated and damage to the compressor occurred. Additionally, there was a problem in that fluid leaking to the outside of the housing 10 ignited and caused a fire. In particular, R290 refrigerant, an environmentally friendly refrigerant, has been widely used recently. Since R290 refrigerant is flammable and explosive, it can cause serious accidents if it leaks to the outside of the compressor.

Republic of Korea Patent Publication No. 10-2019-0081201

Therefore, the purpose of the present invention is to provide a scroll compressor that can prevent fluid in the housing from leaking to the outside.

The present invention, in order to achieve the above-described object, includes a housing; a motor that generates rotational force within the housing; a shaft rotated by the motor; a turning scroll driven in a turning motion by the shaft; a fixed scroll engaged with the orbiting scroll and forming a compression chamber together with the orbiting scroll; and a main frame supporting the orbiting scroll, wherein the housing is coupled to the front housing and the motor, the shaft, the orbiting scroll, the fixed scroll, and the main frame are accommodated together with the front housing. It includes a rear housing forming an accommodating space, and a fastening member for fastening the front housing, the main frame, the fixed scroll, and the rear housing provides a scroll compressor inserted into a fastening member chamber partitioned from the accommodating space. .

The fastening member and the fastening member chamber may be formed radially inside the side plate of the rear housing.

The fastening member chamber may be isolated from the receiving space so that the fastening member is not exposed to the fluid filling the receiving space.

The fastening member may penetrate at least three different sealing members in the axial direction.

The main frame and the fixed scroll may receive an axial force between the front housing and the rear housing by the fastening member.

The rear housing includes a first hole penetrating the rear housing, the fixed scroll includes a second hole penetrating the fixed scroll and communicating with the first hole, and the main frame penetrates the main frame. and includes a third hole communicating with the second hole, the front housing is engraved on the inside of the front housing and includes a fourth hole communicating with the third hole, and the fastening member is located on the outside of the rear housing. It may include a head part supported on a surface and a leg part extending from the head part, passing through the first hole, the second hole, and the third hole, and being inserted and fastened into the fourth hole.

The scroll compressor further includes a first sealing member interposed between the rear housing and the fixed scroll, and the first sealing member is a portion 1-1 surrounding a communication portion between the first hole and the second hole. may include.

The rear housing includes a suction chamber accommodating fluid to be introduced into the compression chamber and a discharge chamber accommodating fluid discharged from the compression chamber, and the first sealing member is a first sealing member sealing between the suction chamber and the discharge chamber. -2 more parts may be included.

The 1-1 portions may be formed in plurality, and the 1-2 portions may be formed integrally with the plurality of 1-1 portions.

The scroll compressor further includes a second sealing member interposed between the fixed scroll and the main frame, and the second sealing member is a portion 2-1 surrounding a communication portion between the second hole and the third hole. may include.

The 2-1 portions may be formed in plurality, and the second sealing member may further include a 2-2 portion formed integrally with the plurality of 2-1 portions.

The scroll compressor further includes a third sealing member interposed between the front housing and the main frame and between the front housing and the rear housing, and the third sealing member is between the front housing and the main frame. It may include a 3-1 part surrounding the communication area between the third hole and the fourth hole, and a 3-2 part sealing the receiving space between the front housing and the rear housing and the exterior of the housing. .

The 3-1 portions may be formed in plurality, and the 3-2 portions may be formed integrally with the plurality of 3-1 portions.

The scroll compressor includes a first sealing member interposed between the rear housing and the fixed scroll; a second sealing member interposed between the fixed scroll and the main frame; and a third sealing member interposed between the front housing and the main frame and between the front housing and the rear housing, wherein the first sealing member and the second sealing member are accommodated in the receiving space, The third sealing member may seal between the receiving space and the exterior of the housing.

The rear housing side plate faces the outer peripheral surface of the main frame and the outer peripheral surface of the fixed scroll, and the inner diameter of the rear housing side plate may be larger than the outer diameter of the main frame and the outer diameter of the fixed scroll.

A scroll compressor according to the present invention includes a housing; a motor that generates rotational force within the housing; a shaft rotated by the motor; a turning scroll driven in a turning motion by the shaft; a fixed scroll engaged with the orbiting scroll and forming a compression chamber together with the orbiting scroll; and a main frame supporting the orbiting scroll, wherein the housing is coupled to the front housing and the motor, the shaft, the orbiting scroll, the fixed scroll, and the main frame are accommodated together with the front housing. It includes a rear housing that forms a receiving space, and the fastening member for fastening the front housing, the main frame, the fixed scroll, and the rear housing is inserted into a fastening member chamber partitioned from the receiving space, so that the fluid in the housing Leakage to the outside can be suppressed.

1 is a cross-sectional view showing a conventional scroll compressor;
Figure 2 is a perspective view showing a scroll compressor according to an embodiment of the present invention;
Figure 3 is an exploded perspective view of Figure 2;
Figure 4 is a cross-sectional view taken along line I-I of Figure 2;
Figure 5 is a cross-sectional view taken along line II-II of Figure 2.

Hereinafter, the scroll compressor according to the present invention will be described in detail with reference to the attached drawings.

FIG. 2 is a perspective view showing a scroll compressor according to an embodiment of the present invention, FIG. 3 is an exploded perspective view of FIG. 2, FIG. 4 is a cross-sectional view taken along line I-I of FIG. 2, and FIG. 5 is a cross-sectional view taken along line II- of FIG. 2. This is a cross-sectional view of line II.

Referring to the attached FIGS. 2 to 5, the scroll compressor according to an embodiment of the present invention includes a housing 100, a motor 200 that generates rotational force inside the housing 100, and the motor 200. A shaft 300 rotated by, an eccentric bush 400 that converts the rotational movement of the shaft 300 into an eccentric rotational movement, a orbiting scroll 500 that rotates by the eccentric bush 400, and the orbiting scroll It may include a fixed scroll 600 engaged with 500 to form a compression chamber together with the orbiting scroll 500, and a main frame 700 supporting the orbiting scroll 500.

The housing 100 is fastened to the front housing 110 and the motor 200, the shaft 300, the eccentric bush 400, and the pivot together with the front housing 110. It may include a rear housing 120 that forms an accommodation space in which the scroll 500, the fixed scroll 600, and the main frame 700 are accommodated.

Here, the motor 200 is accommodated in the receiving space on the front housing 110 side, and the main frame 700, the orbiting scroll 500, and the fixed scroll 600 are accommodated on the rear housing 120 side. can be accommodated in space.

Specifically, the front housing 110 may include a front housing end plate 112 supporting one end of the shaft 300 and a front housing side plate 114 protruding from the outer periphery of the front housing end plate 112. there is.

Here, the front housing side plate 114 is such that a fastening member 800 for fastening the front housing 110, the main frame 700, the fixed scroll 600, and the rear housing 120 is inserted. , It may include a fourth hole 114a that is engraved from the front end surface of the front housing side plate 114 to the inside of the front housing side plate 114. At this time, in order to improve the fastening force, the fastening members 800 are formed in plural numbers, the fourth holes 114a are formed in the same number as the plurality of fastening members 800, and the plurality of fourth holes 114a are formed. may be arranged along the circumferential direction of the front housing side plate 114.

The rear housing 120 includes a rear housing end plate 122 opposite the front housing end plate 112 and a rear housing side plate ( 124) may be included.

Here, a discharge chamber is formed in the center of the rear housing head plate 122 to accommodate the refrigerant (more precisely, a mixed fluid of refrigerant and oil for lubrication) discharged from the compression chamber, and the rear housing head plate 122 A first hole 122a into which the fastening member 800 is inserted may be formed on the outer periphery by penetrating the rear housing head plate 122. At this time, the first holes 122a are formed in the same number as the plurality of fastening members 800, and the plurality of first holes 122a may be arranged along the circumferential direction of the rear housing end plate 122. .

The motor 200 may include a stator 210 and a rotor 220 that is rotated by interaction with the upper stator 210 inside the stator 210, and the stator 210 may include the stator ( The outer peripheral surface of 210 may be press-fitted and fixed to the inner peripheral surface of the front housing side plate 114.

The fixed scroll 600 includes a disc-shaped fixed scroll end plate 610, a fixed scroll wrap 620 protruding from the center of the fixed scroll end plate 610 toward the front housing 110, and a fixed scroll end plate 610. A fixed scroll side plate 630 protrudes from the outer periphery toward the front housing 110, axially penetrating the fixed scroll side plate 630 so that the fastening member 800 is inserted, and communicating with the first hole 122a. a second hole 640, a suction port 650 radially penetrating the fixed scroll side plate 630 to allow refrigerant to flow into the compression chamber, and a fixed scroll head plate 610 to discharge the refrigerant from the compression chamber into the discharge chamber. ( The outer peripheral surface of 630 may face the inner peripheral surface of the rear housing side plate 124.

Here, so that the fixed scroll 600 can be easily inserted into the receiving space on the side of the rear housing 120, the outer diameter of the fixed scroll side plate 630 is preferably formed to be somewhat smaller than the inner diameter of the rear housing side plate 124. can do.

In addition, the second holes 640 may be formed in the same number as the plurality of first holes 122a, and the plurality of second holes 640 may be arranged along the circumferential direction of the fixed scroll side plate 630. there is.

The main frame 700 may include a main frame center 710 and a main frame outer peripheral portion 720.

A axial hole 712 through which the other end of the shaft 300 penetrates and a back pressure chamber 714 for pressing the orbiting scroll 500 toward the fixed scroll 600 are formed in the main frame center 710, The back pressure chamber 714 may provide a space in which the eccentric bush 400 can be rotated.

The outer peripheral surface of the main frame 720 faces the inner peripheral surface of the rear housing side plate 124 and may be interposed between the front housing side plate 114 and the fixed scroll side plate 630.

In addition, the fastening member 800 penetrates the main frame outer peripheral portion 720 in the axial direction so that the fastening member 800 is inserted into the main frame outer peripheral portion 720 and communicates with the second hole 640 on one opening side and on the other opening side. A third hole 722 communicating with the fourth hole 114a may be formed.

Here, the third holes 722 are formed in the same number as the plurality of second holes 640 and the plurality of fourth holes 114a, and the plurality of third holes 722 are formed on the outer periphery of the main frame ( 720) may be arranged along the circumferential direction.

In addition, so that the main frame 700 can be easily inserted into the receiving space on the side of the rear housing 120, the outer diameter of the outer peripheral part of the main frame 720 is preferably formed to be somewhat smaller than the inner diameter of the rear housing side plate 124. can do.

And, since the inner diameter of the rear housing side plate 124 is larger than the outer diameter of the fixed scroll side plate 630 and the outer diameter of the main frame outer peripheral portion 720, between the rear housing 120 and the main frame 700 and A space in which the motor 200 is accommodated and a suction chamber communicating with the suction port 650 may be formed between the rear housing 120 and the fixed scroll 600.

The shaft 300 is fastened to the rotor 220 and passes through the rotor 220, one end of the shaft 300 is supported on the front housing end plate 112, and the shaft 300 The other end may penetrate the main frame 700 and be coupled to the eccentric bush 400.

The orbiting scroll 500 is interposed between the main frame 700 and the fixed scroll 600, and includes a disc-shaped orbiting scroll head plate 510, which protrudes from the center of the orbiting scroll head plate 510 and includes the fixed scroll plate 510. An orbiting scroll wrap 520 engaged with the wrap 620, an orbiting scroll boss 530 protruding from the center of the orbiting scroll end plate 510 to the opposite side of the orbiting scroll wrap 520 and engaged with the eccentric bush 400. ) may include.

Meanwhile, the fastening member 800 extends from the head portion 810 and the head portion 810 supported on the outer surface of the rear housing side plate 124 and includes the first hole 122a and the second hole ( 640) and a leg portion 820 that is inserted and fastened to the fourth hole 114a through the third hole 722, and includes the first hole 122a, the second hole 640, and the fourth hole 114a. The third hole 722 and the fourth hole 114a form a fastening member chamber that accommodates the leg portion 820 of the fastening member 800, where the leg portion 820 of the fastening member 800 is It may be desirable for the fastening member chamber to be isolated from the accommodation space so as not to be exposed to the refrigerant filled in the accommodation space. To this end, the present embodiment includes a first sealing member 910 interposed between the rear housing 120 and the fixed scroll 600, and a first sealing member 910 interposed between the fixed scroll 600 and the main frame 700. 2 sealing member 920, and a third sealing member 930 interposed between the front housing 110 and the main frame 700 and between the front housing 110 and the rear housing 120. can do.

The first sealing member 910 includes a 1-1 portion 912 surrounding the communication portion between the first hole 122a and the second hole 640 and a sealing member between the suction chamber and the discharge chamber. It may include 1-2 sites (914).

Here, the 1-1 portion 912 and the 1-2 portion 914 may be formed separately, but it is preferable that they are formed as one body to facilitate handling and placement of the first sealing member 910. can do. In particular, as in the present embodiment, the 1-1 portion 912 is formed in the same number as the plurality of first holes 122a and the plurality of second holes 640, and the plurality of 1-1 portions 912 are formed in the same number as the plurality of first holes 122a and the plurality of second holes 640. When the portion 912 is formed integrally with the 1-2 portion 914, one of the plurality of 1-1 portions 912 and the 1-2 portion 914 is gripped to form the first portion 914. The sealing member 910 can be handled as a whole, and the plurality of 1-1 parts 912 and the 1-2 parts 914 can be easily placed at predetermined positions.

The second sealing member 920 includes a 2-1 portion 922 surrounding a communication portion between the second hole 640 and the third hole 722, and the 2-1 portion 922 ) may be formed in the same number as the plurality of second holes 640 and the plurality of third holes 722.

In addition, the second sealing member 920 is formed integrally with the plurality of 2-1 parts 922 so that the plurality of 2-1 parts 922 can be easily handled and placed. It may further include a region 924.

The third sealing member 930 is formed between the front housing side plate 114 and the main frame outer peripheral portion 720 and surrounds the communication area between the third hole 722 and the fourth hole 114a. It may include 1 part 932 and a 3-2 part 934 that seals between the receiving space and the exterior of the housing 100 between the front housing side plate 114 and the rear housing side plate 124. there is.

Here, the 3-1 portion 932 is formed in the same number as the plurality of third holes 722 and the plurality of fourth holes 114a, and the 3-2 portion 934 is provided for handling and To improve ease of placement, it may be formed integrally with the plurality of third-1 parts 932.

Hereinafter, the operational effects of the scroll compressor according to this embodiment will be described.

That is, when power is applied to the motor 200, the shaft 300 rotates together with the rotor 220, and the orbiting scroll 500 moves the shaft 300 through the eccentric bush 400. It is linked to a turning movement, and due to this turning movement of the turning scroll 500, the refrigerant flows from the outside of the scroll compressor into the space where the motor 200 is accommodated, and the refrigerant flows into the space where the motor 200 is accommodated. A series of processes in which the refrigerant is sucked into the compression chamber through the suction chamber and the suction port 650, compressed, and then discharged into the discharge chamber may be repeated.

Here, in the scroll compressor according to this embodiment, as the front housing 110 is fastened to the rear housing 120, the area that can communicate between the accommodation space and the outside of the housing 100 can be reduced to one. . As a result, the possibility that fluid (refrigerant and oil) in the accommodation space will leak to the outside of the housing 100 can be significantly reduced. Accordingly, performance degradation, damage, and fire of the compressor due to fluid leakage can be prevented.

In addition, as the fastening portion between the front housing 110 and the rear housing 120 is sealed with one sealing member, that is, the third sealing member 930, fluid leakage can be further suppressed at a low cost. .

And, when the front housing 110 is fastened to the rear housing 120, the motor 200 is accommodated in the front housing 110, and the main frame 700, the orbiting scroll 500, and As the fixed scroll 600 is accommodated in the rear housing 120, either the front housing side plate 114 or the rear housing side plate 124 may not be formed to be excessively long in the axial direction. Accordingly, the rigidity of the front housing side plate 114 and the rear housing side plate 124 that is formed to be excessively long in the axial direction is prevented from being weakened, and there is no need to increase the radial thickness to reinforce rigidity, and the thickness Increase in size, weight and cost due to increase can be prevented. In addition, there is no need to stack and assemble too many components in order for the front housing side plate 114 and the rear housing side plate 124 that are formed to be too long in the axial direction, thereby preventing increased assembly costs and decreased productivity. there is.

And, as the front housing 110, the main frame 700, the fixed scroll 600, and the rare housing 100 are fastened by the fastening member 800, the cost and weight required for fastening decrease. savings can be achieved. In addition, the main frame 700 and the fixed scroll 600 may receive axial force between the front housing 110 and the rear housing 120 by the fastening member 800. As a result, airtightness between the main frame 700, the fixed scroll 600, and the orbiting scroll 500 can be improved, thereby improving product reliability.

Additionally, the first hole 122a is formed through the rear housing end plate 122, the second hole 640 is formed through the fixed scroll side plate 630, and the third hole 722 ) is formed through the main frame outer peripheral portion 720, and the fourth hole 114a is formed to be engraved inward from the front end surface of the side of the front housing 110, so that the fastening member chamber is the receiving space. can be isolated from And, the 1-1 portion 912 of the first sealing member 910, the 2-1 portion 922 of the second sealing member 920, and the third sealing member 930. As the 3-1 portion 932 is provided, the fastening member chamber can be more reliably isolated from the receiving space. By this, the fastening member 800 can be prevented from being exposed to the fluid in the receiving space. Accordingly, the temperature of the fastening member 800 is prevented from changing due to the fluid in the receiving space, and the loosening phenomenon of the fastening member 800 due to a temperature change of the fastening member 800 can be prevented. . Additionally, foreign substances (plating layer, dust, etc.) are prevented from flowing into the fluid of the receiving space from the fastening member 800, and damage to the compressor caused by the foreign substances can be prevented.

And, the first sealing member 910 and the second sealing member 920 are accommodated in the receiving space, and the third sealing member 930 seals between the receiving space and the outside of the housing 100. Accordingly, leakage of the fluid in the receiving space to the outside of the housing 100 can be gradually suppressed. That is, for example, the first sealing member 910 adjacent to the discharge chamber can be easily damaged by exposure to a high temperature and high pressure environment. If damage occurs to the first sealing member 910, Although the refrigerant in the discharge chamber may leak into the suction chamber, leakage of the refrigerant in the discharge chamber to the outside of the housing 100 can be suppressed by the third sealing member 930.

100: housing
110: front housing
114a: Hole 4
120: rear housing
122a: Hole 1
200: motor
300: shaft
500: Orbiting scroll
600: Fixed scroll
640: 2nd hole
700: Main frame
722: Hole 3
800: fastening member
810: Head part
820: Leg part
910: first sealing member
912: Segment 1-1
914: Region 1-2
920: Second sealing member
922: Segment 2-1
924: Segment 2-2
930: Third sealing member
932: Region 3-1
934: Region 3-2

Claims (15)

housing;
a motor that generates rotational force within the housing;
a shaft rotated by the motor;
a turning scroll driven in a turning motion by the shaft;
a fixed scroll engaged with the orbiting scroll and forming a compression chamber together with the orbiting scroll; and
It includes a main frame supporting the orbiting scroll,
The housing includes a front housing and a rear housing that is fastened to the front housing and forms a receiving space in which the motor, the shaft, the orbiting scroll, the fixed scroll, and the main frame are accommodated together with the front housing,
A scroll compressor wherein a fastening member for fastening the front housing, the main frame, the fixed scroll, and the rear housing is inserted into a fastening member chamber partitioned from the receiving space. According to paragraph 1,
A scroll compressor wherein the fastening member and the fastening member chamber are formed radially inside a side plate of the rear housing. According to paragraph 1,
A scroll compressor wherein the fastening member chamber is isolated from the receiving space so that the fastening member is not exposed to fluid filling the receiving space. According to paragraph 1,
A scroll compressor wherein the fastening member axially penetrates at least three different sealing members. According to paragraph 1,
A scroll compressor in which an axial force is applied to the main frame and the fixed scroll by the fastening member between the front housing and the rear housing. According to paragraph 1,
The rear housing includes a first hole penetrating the rear housing,
The fixed scroll includes a second hole passing through the fixed scroll and communicating with the first hole,
The main frame includes a third hole that passes through the main frame and is in communication with the second hole,
The front housing includes a fourth hole that is engraved on the inside of the front housing and communicates with the third hole,
The fastening member includes a head portion supported on the outer surface of the rear housing and a leg portion that extends from the head portion and is inserted and fastened to the fourth hole through the first hole, the second hole, and the third hole. Scroll compressor. According to clause 6,
Further comprising a first sealing member interposed between the rear housing and the fixed scroll,
The first sealing member is a scroll compressor including a 1-1 portion surrounding a communication portion between the first hole and the second hole. In clause 7,
The rear housing includes a suction chamber accommodating fluid to be introduced into the compression chamber and a discharge chamber accommodating fluid discharged from the compression chamber,
The first sealing member further includes a first-second portion sealing between the suction chamber and the discharge chamber. According to clause 8,
The 1-1 region is formed in plural,
The scroll compressor wherein the 1-2 portion is formed integrally with the plurality of 1-1 portions. According to clause 6,
Further comprising a second sealing member interposed between the fixed scroll and the main frame,
The second sealing member is a scroll compressor including a 2-1 portion surrounding a communication portion between the second hole and the third hole. According to clause 10,
The 2-1 region is formed in plural,
The second sealing member further includes a 2-2 portion formed integrally with the plurality of 2-1 portions. According to clause 6,
Further comprising a third sealing member interposed between the front housing and the main frame and between the front housing and the rear housing,
The third sealing member includes a 3-1 portion surrounding a communication portion between the third hole and the fourth hole between the front housing and the main frame, and the receiving space and the rear housing between the front housing and the rear housing. A scroll compressor including a third-2 portion that seals between the exterior of the housing. According to clause 12,
The 3-1 region is formed in plurality,
The scroll compressor wherein the 3-2 portion is formed integrally with the plurality of 3-1 portions. According to paragraph 1,
a first sealing member interposed between the rear housing and the fixed scroll;
a second sealing member interposed between the fixed scroll and the main frame; and
It further includes; a third sealing member interposed between the front housing and the main frame and between the front housing and the rear housing,
The first sealing member and the second sealing member are accommodated in the receiving space, and the third sealing member seals between the receiving space and the outside of the housing. According to paragraph 1,
The rear housing side plate faces the outer peripheral surface of the main frame and the outer peripheral surface of the fixed scroll,
A scroll compressor wherein the inner diameter of the rear housing side plate is larger than the outer diameter of the main frame and the outer diameter of the fixed scroll.