Compressor

Abstract

The present disclosure is provided with: a cylindrical motor housing (110) surrounding a compression mechanism (200) around an axis (X); a lower case (130) that blocks the opening (111) of the motor case (110), that is fitted to the inner peripheral surface of the motor case (110), and that defines a housing chamber (C1) between the motor case (110) and the lower case (130), into which a refrigerant is introduced; a first O-ring (151) provided around an axis (X) at an opposing portion where the motor housing (110) and the lower housing (130), which are fitted together, face each other; and a second O-ring (152) provided around the axis (X) at the facing portion, the first O-ring (151) being provided at a position closer to the starting point on the housing chamber (C1) side of the facing portion than the second O-ring (152), the first O-ring (151) being superior to the second O-ring (152) in terms of refrigerant resistance and / or oil resistance, and the second O-ring (152) being superior to the first O-ring (151) in terms of sealing properties at a temperature of-20 DEG C or less.

Description

Technical Field

[0001] The present disclosure relates to a compressor. Background Art

[0002] In an electric compressor in which a housing is composed of a plurality of housings, sometimes a sealing member such as an O-ring is provided between one housing and another housing to ensure the sealing performance between the housings.

[0003] For example, in Patent Document 1, two O-rings arranged in the axial direction are provided between one housing and another housing.

[0004] Prior Art Documents

[0005] Patent Documents

[0006] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2020-143650. Summary of the Utility Model

[0007] Problems to be Solved by the Utility Model

[0008] A sealing member disposed at a position where it is likely to come into contact with a refrigerant is required to have refrigerant resistance and / or oil resistance. However, among the sealing members that satisfy such requirements, there are sealing members whose sealing performance deteriorates at low temperatures (for example, when exposed to a temperature environment of -20°C or lower).

[0009] The present disclosure has been made in view of such circumstances, and an object thereof is to provide a compressor capable of maintaining sealing performance at low temperatures.

[0010] Technical Solution

[0011] In order to solve the above problems, the compressor of the present disclosure adopts the following solutions.

[0012] That is, a compressor according to one aspect of the present disclosure includes: a cylindrical main housing that surrounds a compression mechanism for compressing a refrigerant around an axis; a sub-housing that closes an opening in the axial direction of the main housing and is fitted to an inner peripheral surface or an outer peripheral surface of the main housing, and defines a space for introducing a refrigerant between the sub-housing and the main housing; a ring-shaped first sealing member provided around the axis at an opposing portion where the fitted main housing and the sub-housing face each other; and a ring-shaped second sealing member provided around the axis at the opposing portion, the first sealing member being provided at a position closer to a starting point on the space side of the opposing portion than the second sealing member, the first sealing member being superior in refrigerant resistance and / or oil resistance to the second sealing member, and the second sealing member being superior in sealing performance to the first sealing member at a temperature of -20°C or lower.

[0013] Effects of the Utility Model

[0014] According to the present disclosure, the sealing performance at low temperatures can be maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a longitudinal sectional view of a compressor according to an embodiment of the present disclosure.

[0016] Figure 2 is Figure 1 a partial enlarged view of part A shown in the figure.

[0017] Figure 3 is Figure 1 Modification 1 of part A shown in the figure.

[0018] Figure 4 is Figure 1 Modification 2 of part A shown in the figure.

[0019] Figure 5 is Figure 1 Modification 3 of part A shown in the figure. DETAILED DESCRIPTION

[0020] Hereinafter, a compressor according to an embodiment of the present disclosure will be described with reference to the drawings.

[0021] [Overview of the Compressor]

[0022] The compressor 10 is a device that compresses a refrigerant (e.g., R1234yf) including refrigeration oil (e.g., POE (Polyolester) oil).

[0023] It should be noted that in the following description, the compressor 10 is exemplified by a scroll compressor in which a compression mechanism 200 and a motor 400 as a drive unit are accommodated in an internal space of a housing 100 configured as a sealed space, but it may also be a so-called open-type scroll compressor in which the drive unit is disposed outside the sealed space.

[0024] As Figure 1 shown, the compressor 10 includes a housing 100, a compression mechanism 200, a crankshaft 310, and a motor 400.

[0025] The housing 100 has a motor housing (main housing) 110, an upper housing 120, and a lower housing (sub-housing) 130.

[0026] The motor housing 110 is a cylindrical member that extends along the axis X direction and has openings at both ends.

[0027] The motor housing 110 surrounds the compression mechanism 200, the crankshaft 310, and the motor 400 around the axis X.

[0028] The upper housing 120 is a member that closes one opening of the motor housing 110.

[0029] The upper housing 120 is fixed to the motor housing 110 by bolts 530.

[0030] The lower housing 130 is a member that closes the other opening of the motor housing 110 (hereinafter referred to as "opening 111").

[0031] The lower housing 130 is fixed to the motor housing 110 by bolts (not shown). The detailed structure of the part where the motor housing 110 and the lower housing 130 are fitted together will be described later.

[0032] On the lower housing 130, an inverter cover 140 is assembled by screws 540. An inverter (not shown) is accommodated in the space defined by the lower housing 130 and the inverter cover 140.

[0033] In the closed space defined by the housing 100 (motor housing 110, upper housing 120, and lower housing 130) configured as described above, a compression mechanism 200, a crankshaft 310, a motor 400, and various other parts are accommodated.

[0034] The compression mechanism 200 is a mechanism that compresses the low-pressure gaseous refrigerant introduced from the outside of the housing 100 through the suction port 116.

[0035] The compression mechanism 200 includes a fixed scroll 210 and a rotating scroll 220.

[0036] The fixed scroll 210 is configured as a member having a fixed-side end plate and a spiral fixed side wall body standing up from the end plate.

[0037] The fixed scroll 210 is fixed to the upper housing 120 by bolts 550. In addition, the outer peripheral surface of the fixed-side end plate of the fixed scroll 210 contacts the inner peripheral surface of the motor housing 110 and the inner peripheral surface of the upper housing 120 in a state of maintaining airtightness. Thus, the closed space inside the housing 100 is divided into an accommodation chamber C1 defined by the fixed scroll 210, the motor housing 110, and the lower housing 130, and a discharge chamber C2 defined by the fixed scroll 210 and the upper housing 120.

[0038] It should be noted that the airtightness between the fixed scroll 210 and the motor housing 110 and the airtightness between the fixed scroll 210 and the upper housing 120 are ensured by, for example, O-rings.

[0039] The rotating scroll 220 is configured as a member having a rotating-side end plate and a spiral rotating side wall body standing up from the end plate.

[0040] The rotating scroll disk 220 is configured to perform a revolving and rotating motion relative to the fixed scroll disk 210 by a crankshaft 310 that rotates about the axis X (specifically, a crank pin 312 that revolves about the axis X) and a known anti-rotation mechanism.

[0041] The fixed scroll disk 210 and the rotating scroll disk 220 are engaged with each other through their respective wall bodies to form a compression chamber C3.

[0042] The crankshaft 310 is a member for transmitting the driving force from the electric motor 400 to the rotating scroll disk 220.

[0043] The crankshaft 310 has a shaft body 311 and a crank pin 312.

[0044] The shaft body 311 is a shaft-shaped member extending along the axis X. The shaft body 311 is rotationally driven about the axis X by the electric motor 400.

[0045] The shaft body 311 is supported by a main bearing 510 disposed on the upper housing 120 side and fixed to the motor housing 110 and a sub-bearing 520 disposed on the lower housing 130 side and fixed to the lower housing 130 so as to be rotatable about the axis X.

[0046] The crank pin 312 is a shaft-shaped member provided at the end of the shaft body 311 on the upper housing 120 side.

[0047] The crank pin 312 extends along another axis eccentric with respect to the axis X. Thus, when the shaft body 311 rotates about the axis X, the crank pin 312 revolves about the axis X.

[0048] The crank pin 312 is connected to a boss portion 221 formed on the rotating scroll disk 220 via a bearing 222.

[0049] The compressor 10 configured as described above is driven in the following manner.

[0050] That is, the shaft body 311 of the crankshaft 310 is rotationally driven about the axis X by the electric motor 400, whereby the rotating scroll disk 220 connected to the crank pin 312 is driven.

[0051] The gaseous refrigerant introduced into the accommodation chamber C1 on the lower housing 130 side through the suction port 116 is guided to the accommodation chamber C1 on the compression mechanism 200 side through a refrigerant passage formed between the inner peripheral surface of the motor housing 110 and the outer peripheral surface of the electric motor 400 (stator), etc.

[0052] The refrigerant guided to the accommodation chamber C1 on the compression mechanism 200 side is sucked into the compression chamber C3. At this time, the compression chamber C3 is configured such that its volume gradually decreases due to the revolving and rotating motion of the rotating scroll disk 220, and accordingly, the gaseous refrigerant is compressed.

[0053] The compressed high-temperature and high-pressure gaseous refrigerant is guided to the discharge chamber C2 through the discharge port 211a formed in the substantially central portion of the fixed-side end plate of the fixed scroll plate 210 and a discharge valve (not shown) provided at the outlet of the discharge port 211a.

[0054] The gaseous refrigerant guided to the discharge chamber C2 is discharged to the outside of the compressor 10 through a discharge port (not shown) provided in the upper housing 120.

[0055] [Regarding the fitting portion between the motor housing and the lower housing]

[0056] As Figure 1 and Figure 2 shown, a ring-shaped convex portion 131 is formed in the lower housing 130.

[0057] The ring-shaped convex portion 131 is a portion of the lower housing 130 that faces the opening 111 of the motor housing 110.

[0058] The ring-shaped convex portion 131 projects along the axis X direction and is formed in a ring shape around the axis X, and is fitted to the inner peripheral surface of the opening 111. That is, the outer diameter of the ring-shaped convex portion 131 corresponds to the inner diameter of the opening 111.

[0059] In a state where the motor housing 110 and the lower housing 130 are fitted, at the portions where the motor housing 110 and the lower housing 130 face each other, specifically, at the portions where the portion on the opening 111 side of the motor housing 110 and the ring-shaped convex portion 131 of the lower housing 130 face each other (hereinafter referred to as "opposing portion L"), two sealing members (first O-ring 151 and second O-ring 152) are provided within any range.

[0060] The first O-ring 151 is a sealing member having rubber elasticity formed in a ring shape around the axis X. In addition, the second O-ring 152 is a sealing member having rubber elasticity formed in a ring shape around the axis X.

[0061] Among them, the first O-ring 151 and the second O-ring 152 are formed of materials of different materials. Details will be described later.

[0062] The first O-ring 151 is provided, for example, in a first annular groove 133 formed in the outer peripheral surface of the ring-shaped convex portion 131. In addition, the second O-ring 152 is provided, for example, in a second annular groove 134 formed in the outer peripheral surface of the ring-shaped convex portion 131.

[0063] It should be noted that in a state where the first O-ring 151 and the second O-ring 152 are assembled to the compressor 10, they are in close contact with the motor housing 110 and the lower housing 130 respectively, and are in a state of being compressed and flattened between the motor housing 110 and the lower housing 130.

[0064] Here, the first annular groove 133 is formed at a position closer to the starting point Ls of the opposed portion L than the second annular groove 134 (a position farther from the ending point Le of the opposed portion L). In other words, the first O-ring 151 is provided at a position closer to the starting point Ls of the opposed portion L than the second O-ring 152 (a position farther from the ending point Le of the opposed portion L).

[0065] Here, the starting point Ls of the opposed portion L refers to the point (portion) of the opposed portion L that is adjacent to the accommodation chamber C1 in a contacting manner. In addition, the ending point Le of the opposed portion L refers to the point (portion) of the opposed portion L that is adjacent to the outside of the compressor 10 in a contacting manner.

[0066] In Figure 2 this case, the starting point Ls of the opposed portion L is located on the side of the end face 131a of the annular convex portion 131. That is, the first annular groove 133 is formed at a position closer to the end face 131a of the annular convex portion 131 than the second annular groove 134.

[0067] With this configuration, in the case where it is assumed that the gaseous refrigerant infiltrates from the accommodation chamber C1 along the opposed portion L through the starting point Ls, first, the refrigerant contacts the first O-ring 151. And, only in the case where it is assumed that the gaseous refrigerant passes between the first O-ring 151 and the inner peripheral surface of the motor housing 110, the refrigerant contacts the second O-ring 152.

[0068] Here, the first O-ring 151 is an O-ring having excellent refrigerant resistance and / or oil resistance compared to the second O-ring 152.

[0069] In addition, the second O-ring 152 is an O-ring having excellent sealing performance compared to the first O-ring 151 at a temperature of -20°C or lower, for example.

[0070] The refrigerant resistance is evaluated, for example, by an immersion test using a refrigerant (R1234yf) (JIS K6258, "Vulcanized rubber and thermoplastic rubber - Method for obtaining liquid resistance").

[0071] In addition, in addition to the immersion test, the refrigerant resistance is evaluated by a foaming test. The foaming test refers to a test in which an O-ring is immersed in a refrigerant and then air is heated, and ten parts of the O-ring are cut and the cracks on the cross section are confirmed.

[0072] The oil resistance is evaluated, for example, by an immersion test using a refrigeration oil (POE oil) (JIS K 6258, "Vulcanized rubber and thermoplastic rubber - Method for obtaining liquid resistance").

[0073] The sealing performance is evaluated, for example, by a TR (Temperature-Retrartion) test (JIS K6261, "Vulcanized Rubber and Thermoplastic Rubber - Method for Obtaining Low Temperature Characteristics"). Specifically, the sealing performance is evaluated by the TR10 value (the temperature at which the shrinkage rate is 10%). The lower this temperature is, the better the sealing performance at low temperatures. It should be noted that when using an O-ring at a temperature lower than the TR10 value, there is a possibility that the sealing performance cannot be ensured due to the reduction of the rubber elasticity of the O-ring.

[0074] As the material of the first O-ring 151 selected through the above evaluation, examples include HNBR, and as the material of the second O-ring 152, examples include EPDM (Ethylene Propylene Diene Monomer).

[0075] It should be noted that in the first O-ring 151 and the second O-ring 152, by making their respective colors different from each other, the first O-ring 151 and the second O-ring 152 can be easily distinguished visually.

[0076] Thereby, incorrect assembly of each O-ring can be prevented.

[0077] According to this embodiment, the following effects are achieved.

[0078] The compressor according to this embodiment includes: an annular first O-ring 151 disposed around the axis X at the opposing portion L where the engaged motor housing 110 and the lower housing 130 face each other; and an annular second O-ring 152 disposed around the axis X at the opposing portion L. The first O-ring 151 is disposed at a position closer to the starting point Ls of the opposing portion L than the second O-ring 152. The first O-ring 151 is superior in refrigerant resistance and / or oil resistance compared to the second O-ring 152. The second O-ring 152 is superior in sealing performance compared to the first O-ring 151 at temperatures of -20°C or lower. Therefore, even when the first O-ring 151 and the second O-ring 152 are exposed to an environment with a temperature of -20°C or lower due to the operation of the compressor 10, the first O-ring 151 disposed at a position where it is likely to come into contact with the refrigerant can suppress deterioration caused by the refrigerant (including lubricating oil) due to its excellent refrigerant resistance and / or oil resistance, and ensure a certain level of sealing performance. In addition, the second O-ring 152 can also ensure high sealing performance in a temperature environment of -20°C due to its excellent sealing performance at low temperatures. At this time, although the second O-ring 152 is inferior in refrigerant resistance and / or oil resistance compared to the first O-ring 151, it is not easily deteriorated by the refrigerant (not easily affected by the refrigerant). This is because although the first O-ring 151 is inferior in sealing performance at low temperatures compared to the second O-ring 152, the amount of refrigerant passing through the first O-ring 151, which is excellent in refrigerant resistance and / or oil resistance and exhibits a certain level of sealing performance, is small. That is, the amount of refrigerant that may come into contact with the second O-ring 152 is small.

[0079] In this way, by combining the first O-ring 151 and the second O-ring 152 with different materials, the sealing performance at low temperatures can be maintained for a long time.

[0080] In addition, by making the color of the first O-ring 151 different from the color of the second O-ring 152, incorrect assembly of each O-ring can be prevented.

[0081] [Variant Example 1]

[0082] As Figure 3 shown, the second O-ring 152 can also be disposed on the end face 111a of the opening 111 of the motor housing 110.

[0083] In this case, a first annular groove 133 is formed on the outer peripheral surface of the annular convex portion 131, and a second annular groove 114 is formed on the end face 111a of the opening 111 of the motor housing 110.

[0084] [Variant Example 2]

[0085] As Figure 4 shown, the inner peripheral surface of the lower housing 130 can also be fitted to the outer peripheral surface of the motor housing 110.

[0086] In this case, a first annular groove 113 and a second annular groove 114 are formed on the outer peripheral surface of the portion on the end face 111a side of the motor housing 110.

[0087] In addition, the starting point Ls of the opposed portion L is located on the end face 111a side of the opening 111. Therefore, the first annular groove 133 is formed at a position closer to the end face 111a of the opening 111 than the second annular groove 134. That is, the first O-ring 151 is provided at a position closer to the end face 111a of the opening 111 than the second O-ring 152.

[0088] [Modification Example 3]

[0089] As Figure 5 shown, the second O-ring 152 may also be provided on the chamfered portion 111b connected to the end face 111a of the motor housing 110. It should be noted that the chamfered portion 111b is provided as a part of the inner peripheral surface of the motor housing 110.

[0090] In this case, a first annular groove 133 is formed on the outer peripheral surface of the annular convex portion 131, and the chamfered portion 111b corresponds to the second annular groove 114 or the second annular groove 134.

[0091] It should be noted that in any of the embodiments (including modification examples), the parts on which two annular grooves provided with O-rings are formed can be arbitrarily selected from the motor housing 110 and the lower housing 130.

[0092] In addition, two annular grooves may also be formed on the end face 111a of the motor housing 110 and / or the face of the lower housing 130 opposed to the end face 111a, and two O-rings are provided in the two annular grooves.

[0093] The compressor of the present embodiment described above is understood as follows, for example.

[0094] That is, the compressor (10) of the first aspect of the present disclosure includes: a cylindrical main housing (110) that surrounds a compression mechanism (200) for compressing a refrigerant around an axis (X); a sub-housing (130) that closes an opening (111) in the axial direction of the main housing and is fitted to an inner peripheral surface or an outer peripheral surface of the main housing, and defines a space (C1) for introducing a refrigerant between the main housing; a ring-shaped first sealing member (151) disposed around the axis at an opposing portion (L) where the fitted main housing and the sub-housing face each other; and a ring-shaped second sealing member (152) disposed around the axis at the opposing portion. The first sealing member is disposed at a position closer to a starting point (Ls) on the space side of the opposing portion than the second sealing member. The first sealing member is superior to the second sealing member in refrigerant resistance and / or oil resistance. The second sealing member is superior to the first sealing member in sealing performance at a temperature of -20°C or lower.

[0095] According to the compressor of this aspect, it includes: a ring-shaped first sealing member disposed around the axis at an opposing portion where the fitted main housing and the sub-housing face each other; and a ring-shaped second sealing member disposed around the axis at the opposing portion. The first sealing member is disposed at a position closer to a starting point on the space side of the opposing portion than the second sealing member. The first sealing member is superior to the second sealing member in refrigerant resistance and / or oil resistance. The second sealing member is superior to the first sealing member in sealing performance at a temperature of -20°C or lower. Therefore, even when the first sealing member and the second sealing member are exposed to an environment at a temperature of -20°C or lower due to the operation of the compressor, the first sealing member disposed at a position where it is likely to come into contact with the refrigerant can suppress deterioration caused by the refrigerant (including lubricating oil) due to its excellent refrigerant resistance and / or oil resistance, and ensure a certain degree of sealing performance. In addition, the second sealing member can also ensure high sealing performance in a temperature environment of -20°C due to its excellent sealing performance at low temperatures. At this time, although the second sealing member is inferior to the first sealing member in refrigerant resistance and / or oil resistance, it is not easily deteriorated by the refrigerant (not easily affected by the refrigerant). This is because although the first sealing member is inferior to the second sealing member in sealing performance at low temperatures, the amount of refrigerant passing through the first sealing member, which is excellent in refrigerant resistance and / or oil resistance and exhibits a certain degree of sealing performance, is small. That is, the amount of refrigerant that may come into contact with the second sealing member is small.

[0096] In this way, by combining the first sealing member and the second sealing member made of different materials, the sealing performance at low temperatures can be maintained for a long time.

[0097] In addition, the compressor according to the second aspect of the present disclosure may also be such that, in the first aspect, the first sealing member is configured to contact the inner peripheral surface or the outer peripheral surface of the main housing, and the second sealing member is configured to contact the inner peripheral surface or the outer peripheral surface of the main housing.

[0098] For the compressor according to this aspect, the first sealing member is configured to contact the inner peripheral surface or the outer peripheral surface of the main housing, and the second sealing member is configured to contact the inner peripheral surface or the outer peripheral surface of the main housing. Therefore, sealing can be achieved through the inner peripheral surface or the outer peripheral surface of the main housing.

[0099] In addition, the compressor according to the third aspect of the present disclosure may also be such that, in the first aspect, the first sealing member is configured to contact the inner peripheral surface or the outer peripheral surface of the main housing, and the second sealing member is configured to contact the opening end surface of the main housing.

[0100] For the compressor according to this aspect, the first sealing member is configured to contact the inner peripheral surface or the outer peripheral surface of the main housing, and the second sealing member is configured to contact the opening end surface of the main housing. Therefore, sealing can be achieved through the inner peripheral surface or the outer peripheral surface of the main housing and the opening end surface of the main housing.

[0101] In addition, the compressor according to the fourth aspect of the present disclosure may also be such that, in the first aspect, the first sealing member is configured to contact the opening end surface of the main housing, and the second sealing member is configured to contact the opening end surface of the main housing.

[0102] For the compressor according to this aspect, the first sealing member is configured to contact the opening end surface of the main housing, and the second sealing member is configured to contact the opening end surface of the main housing. Therefore, sealing can be achieved through the opening end surface of the main housing.

[0103] In addition, for the compressor according to the fifth aspect of the present disclosure, in any one of the first aspect to the fourth aspect, the colors of the first sealing member and the second sealing member are different.

[0104] For the compressor according to this aspect, the colors of the first sealing member and the second sealing member are different. Therefore, incorrect assembly of each sealing member can be prevented.

[0105] Description of Reference Numerals

[0106] 10: Compressor;

[0107] 100: Outer housing;

[0108] 110: Motor housing (main housing);

[0109] 111: Opening;

[0110] 111a: End surface;

[0111] 111b: Chamfered portion;

[0112] 113: First annular groove;

[0113] 114: Second annular groove;

[0114] 116: Suction port;

[0115] 120: Upper housing;

[0116] 130: Lower housing (sub-housing);

[0117] 131: Annular convex portion;

[0118] 131a: End face;

[0119] 133: First annular groove;

[0120] 134: Second annular groove;

[0121] 140: Inverter cover;

[0122] 151: First O-ring (first sealing member);

[0123] 152: Second O-ring (second sealing member);

[0124] 200: Compression mechanism;

[0125] 210: Fixed scroll plate;

[0126] 211a: Discharge port;

[0127] 220: Rotating scroll plate;

[0128] 221: Boss portion;

[0129] 222: Bearing;

[0130] 310: Crankshaft;

[0131] 311: Shaft body;

[0132] 312: Crank pin;

[0133] 400: Motor;

[0134] 510: Main bearing;

[0135] 520: Sub-bearing;

[0136] 530: Bolt: For upper housing;

[0137] 540: Screw: For inverter cover;

[0138] 550: Bolt: For fixed scroll plate;

[0139] C1: Accommodating chamber;

[0140] C2: Discharge chamber;

[0141] C3: Compression chamber;

[0142] X: Axis.

Claims

1. A compressor, comprising: a cylindrical main housing that surrounds a compression mechanism for compressing a refrigerant around an axis; a sub-housing that closes an opening in the axial direction of the main housing and is fitted to an inner peripheral surface or an outer peripheral surface of the main housing, defining a space for introducing a refrigerant between the sub-housing and the main housing; a ring-shaped first sealing member provided around the axis at an opposing portion where the fitted main housing and the sub-housing face each other; and a ring-shaped second sealing member provided around the axis at the opposing portion, wherein the first sealing member is provided at a position closer to the starting point on the space side of the opposing portion than the second sealing member, and materials of the first sealing member and the second sealing member are different from each other.

2. The compressor according to claim 1, wherein the material of the first sealing member is HNBR.

3. The compressor according to claim 1, wherein the material of the second sealing member is EPDM.

4. The compressor according to claim 1, wherein the material of the first sealing member is HNBR and the material of the second sealing member is EPDM.

5. The compressor according to claim 1, wherein the first sealing member is configured to contact an inner peripheral surface or an outer peripheral surface of the main housing, and the second sealing member is configured to contact an inner peripheral surface or an outer peripheral surface of the main housing.

6. The compressor according to claim 1, wherein the first sealing member is configured to contact an inner peripheral surface or an outer peripheral surface of the main housing, and the second sealing member is configured to contact an opening end surface of the main housing.

7. The compressor according to claim 1, wherein the first sealing member is configured to contact an opening end surface of the main housing, and the second sealing member is configured to contact an opening end surface of the main housing.

8. The compressor according to any one of claims 1 to 7, wherein the first sealing member and the second sealing member have different colors.

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