JP2023002085A - compressor - Google Patents

Abstract

To inexpensively reduce noise.SOLUTION: A compressor 10 includes an accumulator body for separating refrigerant into liquid refrigerant and gas refrigerant, an accumulator container 71 forming an internal space to store the accumulator body, and a compressor body 1 for compressing the gas refrigerant. On an outer peripheral face 87 of the accumulator container 71, a welded part 86 is formed by weldment. A thickness of an area in the accumulator container 71 where the welded part 86 is formed is greater than a thickness of other areas in the accumulator container 71 where the welded part 86 is not formed.SELECTED DRAWING: Figure 2

Description

The technology of the present disclosure relates to compressors.

A compressor is known that includes an accumulator that separates a refrigerant into a liquid refrigerant and a gas refrigerant, and a compressor body that compresses the gas refrigerant separated by the accumulator. The accumulator is fixed to the compressor body via an attachment member such as an attachment band (Patent Document 1). Such compressors are widely used in air conditioners and refrigerators. An air conditioner provided with such a compressor can omit a sub-accumulator by increasing the size of the accumulator, thereby reducing manufacturing costs.

Japanese Unexamined Patent Application Publication No. 2002-90004

The compressor main body is provided with a motor, and vibrates by compressing the gas refrigerant using the rotational power generated by the motor. The compressor further includes piping for supplying gas refrigerant from the accumulator to the compressor body. One end of the pipe is arranged inside the accumulator, and the other end of the pipe is fixed to the compressor body. Therefore, the vibration of the compressor body is transmitted to the piping, and the portion of the piping that is arranged inside the accumulator vibrates inside the accumulator. Furthermore, the vibration of the compressor body is transmitted to the accumulator via piping and mounting members. Accumulators (especially piping) vibrate more easily as they move away from the center of rotation of the motor. A large accumulator is farther from the center of rotation of the motor than a small accumulator, and is likely to vibrate. A compressor provided with a large accumulator has a problem of increased noise.

The disclosed technique has been made in view of the above points, and aims to provide a compressor that reduces noise at low cost.

A compressor according to one aspect of the present disclosure includes an accumulator body that separates refrigerant into liquid refrigerant and gas refrigerant, an accumulator container that forms a space in which the accumulator body is stored, and a compressor body that compresses the gas refrigerant. I have. A welded portion is formed on the outer peripheral surface of the accumulator container. The thickness of the portion of the accumulator container where the welded portion is formed is greater than the thickness of the other portion of the accumulator container where the welded portion is not formed.

The disclosed compressor can reduce noise at low cost.

FIG. 1 is a longitudinal sectional view showing a compressor of Example 1. FIG. FIG. 2 is a side view showing the compressor of Example 1. FIG. FIG. 3 is a top view showing the compressor of Example 1. FIG.

A compressor according to an embodiment disclosed by the present application will be described below with reference to the drawings. Note that the technology of the present disclosure is not limited by the following description. Also, in the following description, the same constituent elements are given the same reference numerals, and overlapping descriptions are omitted.

FIG. 1 is a longitudinal sectional view showing a compressor 10 of Embodiment 1. FIG. A compressor 10 of Example 1 includes a compressor body 1 , a mounting leg 7 and an accumulator 8 . A compressor body 1 includes a compressor housing 2 , a shaft 3 , a compression section 5 and a motor section 6 . A sealed internal space 21 is formed inside the compressor housing 2 . The internal space 21 is formed in a generally columnar shape. The compressor housing 2 has a discharge pipe 23 . The discharge pipe 23 is joined to the compressor housing 2 so that one end is arranged above the internal space 21 and the other end is arranged outside the internal space 21 .

The shaft 3 is formed like a bar. The shaft 3 is arranged in the internal space 21 along a rotation axis 31 that overlaps the central axis of the internal space 21 formed in a cylindrical shape, and is rotatably supported by the compressor housing 2 around the rotation axis 31 as a central axis. It is The shaft 3 has a first eccentric portion 32 and a second eccentric portion 33 . The first eccentric portion 32 and the second eccentric portion 33 are arranged below the internal space 21 and fixed to the shaft 3 . That is, the first eccentric portion 32 and the second eccentric portion 33 are supported by the compressor housing 2 so as to be rotatable about the rotating shaft 31 via the shaft 3 .

The compression part 5 is arranged in the lower part of the internal space 21 and surrounds the first eccentric part 32 and the second eccentric part 33 of the shaft 3 . The compression unit 5 is a so-called rotary compression mechanism, and includes a first ring-shaped piston 51 and a second ring-shaped piston 52, and two flow paths 221 are formed. The first annular piston 51 is fitted into the first eccentric portion 32 and revolves when the shaft 3 rotates. The second annular piston 52 is fitted into the second eccentric portion 33 and revolves when the shaft 3 rotates. The compression unit 5 compresses the refrigerant supplied through the two flow paths 221 by revolving the first ring-shaped piston 51 and the second ring-shaped piston 52 . is supplied to the space above the compression section 5 of the .

The motor section 6 is arranged in a space above the compression section 5 in the internal space 21 . The motor section 6 includes a rotor 61 , a stator 62 and a plurality of windings 63 . A rotor 61 is fixed to the shaft 3 . The stator 62 is arranged in the internal space 21 and fixed to the compressor housing 2 so as to surround the rotor 61 . A plurality of teeth protruding toward the rotor 61 are formed on the stator 62 . A plurality of windings 63 are wound around a plurality of teeth, respectively.

The mounting leg 7 is formed in a generally triangular plate shape. The mounting legs 7 are mounted on an installation surface on which the compressor 10 is installed. The mounting legs 7 are arranged under the compressor housing 2 so that the surface along which the mounting surface on which the mounting legs 7 are placed is perpendicular to the central axis of the cylinder formed by the internal space 21. there is The mounting leg 7 is fixed to the compressor housing 2 .

The accumulator 8 has an accumulator container 71 and an accumulator body 72 . An internal space 74 is formed inside the accumulator container 71 . The internal space 74 is generally cylindrical. The accumulator container 71 is arranged so that the central axis 73 of the cylinder of the internal space 74 is perpendicular to the plane along which the compressor 10 is installed. are arranged so that they are parallel to

The accumulator body 72 has a low pressure introduction pipe 75 and two low pressure communication pipes 76 . The low-pressure introduction pipe 75 is joined to the accumulator container 71 so that one end is arranged above the internal space 74 and the other end is arranged outside the internal space 74 . A flow path 78 is formed inside each of the two low-pressure communication pipes 76 . The two low-pressure connecting pipes 76 are connected to the accumulator container 71 such that one end of the channel 78 is located above the internal space 74 and the other end of the channel 78 is located outside the internal space 74 . passes through. Furthermore, the portion of the two low-pressure connecting pipes 76 that penetrates the accumulator container 71 is joined to the accumulator container 71 and fixed to the accumulator container 71 . The upper end of the two low-pressure communication pipes 76 located in the internal space 74 is not fixed to the accumulator container 71, and can vibrate when vibration is transmitted to the two low-pressure communication pipes 76. be. Furthermore, the upper ends of the two low-pressure communication pipes 76 are open, and the flow path 78 is connected to the upper portion of the internal space 74 via the upper ends of the two low-pressure communication pipes 76 . The portion of the two low-pressure communication pipes 76 that is arranged outside the internal space 74 is connected to the compressor housing 2 so that the other end of the flow path 78 is connected to the flow path 221 of the compressor main body 1 . penetrates. Portions of the two low-pressure communication pipes 76 that penetrate the compressor housing 2 are joined to the compressor housing 2 and fixed to the compressor housing 2 .

FIG. 2 is a side view showing the compressor 10 of Example 1. FIG. The accumulator container 71 has a container body portion 81 , a top portion 82 and a bottom portion 83 . The container body 81 is formed in a cylindrical shape, and has an upper opening 84 and a lower opening 85 . The inside of the container body 81 is connected to the outside of the container body 81 through an upper opening 84 and to the outside of the container body 81 through a lower opening 85 . The top portion 82 closes an upper opening 84 of the container body 81 and is joined to the container body 81 by welding. The bottom portion 83 closes the lower opening 85 of the container body 81 and is joined to the container body 81 by welding.

The container body 81 is formed from a so-called electric resistance welded tube. An electric resistance welded pipe is formed, for example, by rolling a steel plate or the like into a tubular shape and welding the joints. In this embodiment, the steel plate is formed into a tubular shape so that the two ends of the steel plate (the first portion, which is one end, and the second portion, which is the other end) are in contact with each other, and the two ends are joined. there is A welded portion 86 is formed in the container body portion 81 . The weld 86 is formed by a weld that joins two ends of a tubular steel plate. Examples of welding include plasma welding and laser welding. Welded portion 86 is formed to protrude from outer peripheral surface 87 . A line segment 88 along which the welded portion 86 extends is parallel to the center axis 73 (see FIG. 1) of the accumulator container 71 and connects the upper opening 84 and the lower opening 85 of the container body 81 . A portion of the container body 81 where the welded portion 86 is formed is formed of the welded portion 86 and a steel plate (base material) welded by the welded portion 86 . The thickness of the portion of the container body 81 where the welded portion 86 is formed is greater than the thickness of the steel plate before welding, and the thickness of the portion of the container body 81 where the welded portion 86 is not formed. greater than Since the portion of the container body 81 where the welded portion 86 is formed has a large thickness, it is difficult to deform against the force that attempts to bend the welded portion 86, and the force that attempts to bend the welded portion 86 is not easily deformed. Rigidity against

The accumulator 8 is positioned such that the weld 86 is positioned in a predetermined area 94, as shown in FIG. FIG. 3 is a top view showing the compressor 10 of Example 1. FIG. A region 94 is a region of the accumulator container 71 on the far side from the compressor body 1 , is arranged farther from the compressor body 1 than the first plane 95 , and is further from the compressor body 1 than the second plane 96 . placed on the far side. The first plane 95 includes the central axis 73 of the accumulator container 71 and is arranged such that the angle θ1 formed by the first plane 95 and the third plane 97 is equal to 45 degrees. The third plane 97 includes the central axis 73 of the accumulator container 71 and the central axis of the internal space 21 of the compressor body 1 , that is, the central axis 73 of the accumulator container 71 and the rotation axis 31 of the compressor body 1 . I'm in. The second plane 96 includes the center axis 73 of the accumulator container 71 and is arranged such that the angle θ2 formed by the second plane 96 and the third plane 97 is equal to 45 degrees. That is, the first plane 95 and the second plane 96 are arranged such that the angle θ3 formed by the first plane 95 and the second plane 96 is equal to 90 degrees. That is, the first plane 95 is a plane including one end of the area 94 among the planes including the central axis 73 , and the second plane 96 is the other end of the area 94 among the planes including the central axis 73 . and the angle θ3 between the first plane 95 and the second plane 96 is 90 degrees. In other words, the region 94 is arranged within the range of the angle θ3, and the welded portion 86 is arranged in the region of the accumulator container 71 farther from the compressor main body 1 and within the range of the angle θ3. .

The compressor 10 further comprises an accumulator holder 91 , a fixing band 92 and a rubber sheet 93 . The accumulator holder 91 is arranged in a space between the compressor housing 2 and the accumulator 8 and fixed to the compressor housing 2 . The fixing band 92 is stretched in the circumferential direction so as to surround the container body portion 81 of the accumulator container 71 . Both ends of the fixing band 92 are fixed to the accumulator holder 91 . A rubber sheet 93 is arranged between the accumulator container 71 and the fixing band 92 . The rubber sheet 93 is sandwiched between the accumulator container 71 and the fixing band 92 and is in close contact with the accumulator container 71 and the fixing band 92 . The rubber sheet 93 is elastically deformed so that the rubber sheet 93 is in close contact with the accumulator container 71 and the fixing band 92 even when the welded portion 86 protrudes from the outer peripheral surface. The accumulator container 71 is fixed to the compressor housing 2 by fixing both ends of the fixing band 92 to the accumulator holder 91 .

[Operation of Compressor 10]
The compressor 10 is provided in a refrigeration cycle device (not shown) and is used to circulate refrigerant in the refrigeration cycle device. That is, the internal space 74 of the accumulator 8 is supplied with the refrigerant through the low-pressure introduction pipe 75 from the equipment in the preceding stage of the accumulator 8 in the refrigeration cycle device. The refrigerant is separated into liquid refrigerant and low-pressure gas refrigerant in the internal space 74 , the liquid refrigerant is stored in the lower portion of the internal space 74 and the low-pressure gas refrigerant is stored in the upper portion of the internal space 74 . The low-pressure gas refrigerant stored in the upper part of the internal space 74 flows into the flow path 78 from one end of the two low-pressure connecting pipes 76 that is arranged in the upper part of the internal space 74, and flows through the two flow paths of the compressor body 1 221.

The stator 62 of the motor section 6 of the compressor body 1 generates a rotating magnetic field in the space inside the stator 62 by appropriately applying a three-phase voltage to the plurality of windings 63 . The rotor 61 rotates around the rotating shaft 31 by generating a rotating magnetic field. The motor unit 6 rotates the shaft 3 around the rotary shaft 31 by rotating the rotor 61 around the rotary shaft 31 . The first eccentric portion 32 and the second eccentric portion 33 cause the first annular piston 51 and the second annular piston 52 to revolve as the shaft 3 rotates.

The compression unit 5 sucks the low-pressure gas refrigerant from the accumulator 8 through the two flow paths 221 by revolving the first ring-shaped piston 51 and the second ring-shaped piston 52, and compresses the sucked low-pressure gas refrigerant. to generate a high pressure gas refrigerant. The generated high-pressure gas refrigerant is supplied to the space between the compression section 5 and the motor section 6 in the internal space 21 . The high-pressure gas refrigerant supplied to the space between the compression section 5 and the motor section 6 in the internal space 21 passes through the gap formed in the motor section 6, and the motor section in the internal space 21 The space above 6 is supplied. The high-pressure gas refrigerant supplied to the space above the motor portion 6 in the internal space 21 is discharged through a discharge pipe 23 to a device downstream of the compressor main body 1 in the refrigeration cycle device. The compressing portion 5 further vibrates due to the revolution of the first ring-shaped piston 51 and the second ring-shaped piston 52 when the refrigerant is compressed.

The compressor housing 2 vibrates and elastically deforms due to the revolution of the first ring-shaped piston 51 and the second ring-shaped piston 52 when the compression section 5 compresses the refrigerant. Vibration of the compressor housing 2 is transmitted to the two low pressure communication pipes 76 by fixing one ends of the two low pressure communication pipes 76 to the compressor housing 2 . Vibration of the compressor housing 2 is transmitted to the two low-pressure communication pipes 76, so that the portion of the two low-pressure communication pipes 76 disposed in the internal space 74 of the accumulator container 71 is moved to the inside of the accumulator container 71. It vibrates in space 74 . The vibration of the compressor housing 2 is further transmitted to the accumulator container 71 via the two low pressure communication pipes 76 fixed to the accumulator container 71 . The vibration of the compressor housing 2 is further transmitted through the accumulator holder 91 and the fixing band 92 by fixing the accumulator container 71 to the compressor housing 2 through the accumulator holder 91 and the fixing band 92 . It is transmitted to the accumulator container 71 . The accumulator container 71 vibrates and elastically deforms when the vibration of the compressor housing 2 is transmitted to the accumulator container 71 . Since the accumulator container 71 is formed with the welded portion 86, the rigidity of the portion of the accumulator container 71 where the welded portion 86 is formed is improved, and the portion is less likely to deform. In the accumulator container 71, since the portion where the welded portion 86 is formed is difficult to deform, the degree of deformation of the portion where the welded portion 86 is formed can be reduced. Vibration generated by deformation is reduced. Compressor 10 can reduce the level of noise generated by the vibration by reducing the vibration generated by deformation of the portion of accumulator container 71 where welded portion 86 is formed.

[compressor of comparative example]
In the compressor of the comparative example, the container body 81 of the accumulator container 71 of the compressor 10 of Example 1 described above is replaced with another container body, and the other parts are the same as those of the compressor of Example 1 described above. Same as 10. The replaced container body is formed in a cylindrical shape, like the container body 81 already described. Further, the container body is formed so that the welded portion protruding from the outer peripheral surface is not formed and the thickness is generally uniform.

The compressor of the comparative example operates in the same manner as the compressor 10 of the first embodiment already described. The compressor housing 2 of the compressor of the comparative example vibrates and elastically deforms when the motor section 6 rotates the shaft 3 . Vibration of the compressor housing 2 is transmitted to the two low pressure communication pipes 76 by fixing one ends of the two low pressure communication pipes 76 to the compressor housing 2 . Vibration of the compressor housing 2 is transmitted to the two low-pressure communication pipes 76, so that the portion of the two low-pressure communication pipes 76 disposed in the internal space 74 of the accumulator container 71 is moved to the inside of the accumulator container 71. It vibrates in space 74 . Vibrations of the two low-pressure communication pipes 76 are transmitted to the accumulator container 71 by fixing the two low-pressure communication pipes 76 to the accumulator container 71 . Vibration of the compressor housing 2 is further transmitted to the accumulator housing 71 by fixing the accumulator housing 71 to the compressor housing 2 via two low-pressure connecting pipes 76, an accumulator holder 91, and a fixing band 92. transmitted.

The accumulator container 71 vibrates and elastically deforms when the vibration of the compressor housing 2 is transmitted to the accumulator container 71 . The vibration of the accumulator container 71 includes vibration generated by elastic deformation of the region 94 of the accumulator container 71 on the far side from the compressor main body 1 . The natural frequency of the vibration is approximately equal to 1600 Hz, for example. At this time, the accumulator container of the compressor of the comparative example generates noise whose pitch is its natural frequency (1600 Hz) toward the side opposite to the side facing the compressor main body 1 .

In the compressor 10 of the first embodiment, the welded portion 86 is formed in the region 94 of the accumulator container 71 farther from the compressor main body 1, so that the rigidity of the region 94 of the accumulator container 71 is increased. It is improved, and the portion of the region 94 is difficult to deform. In the compressor 10 of Example 1, since the portion of the region 94 of the accumulator container 71 is difficult to deform, compared to the compressor of the comparative example, the degree of deformation of the portion of the region 94 due to the vibration of the compressor main body 1 is reduced. can be made smaller. In the compressor 10 of the first embodiment, since the extent of deformation of the region 94 is small, the vibration generated by the deformation of the region 94 can be reduced, and the noise generated from the region 94 can be reduced. can be reduced.

[Effect of Compressor 10 of Embodiment 1]
The compressor 10 of the first embodiment includes an accumulator body 72 that separates the refrigerant into a liquid refrigerant and a gas refrigerant, an accumulator container 71 that forms an internal space 74 in which the accumulator body 72 is stored, and a compressor body that compresses the gas refrigerant. 1. The accumulator container 71 is fixed to the compressor body 1 . The accumulator container 71 includes a cylindrical container body 81 , a top part 82 closing one end of the container body 81 , and a bottom part 83 closing the other end of the container body 81 . A welded portion 86 is formed on an outer peripheral surface 87 of the container body portion 81 by welding. The portion of the container body 81 where the welded portion 86 is formed is formed of the welded portion 86 and the base material welded by the welded portion 86, and the welded portion 86 of the container body 81 is formed. The thickness of the portion is greater than the thickness of other portions of the container body 81 where the welded portion 86 is not formed.

In this case, the compressor 10 of the first embodiment can improve the rigidity of the accumulator container 71 by forming the welded portion 86 on the container body 81 . Compressor 10 can make deformation of accumulator container 71 difficult by improving rigidity of accumulator container 71 . Since the accumulator container 71 is difficult to deform, the compressor 10 can reduce the degree of deformation of the accumulator container 71 due to the vibration of the compressor main body 1, and can make the accumulator container 71 difficult to vibrate. Compressor 10 can reduce noise generated from accumulator container 71 because accumulator container 71 is less likely to vibrate. It is known that an electric resistance welded pipe formed using a thick steel plate has greater rigidity than an electric resistance welded pipe formed using a thin steel plate. A thick steel plate requires a higher material cost than a thin steel plate, and bending a thick steel plate requires a higher cost than bending a thin steel plate. Therefore, a thick electric resistance welded pipe is more expensive than a thin electric resistance welded pipe. In the compressor 10 of the first embodiment, the welded portion 86 is formed in the container body 81 to improve the rigidity of the accumulator container 71, thereby improving the rigidity of the container body 81 by using an electric resistance welded tube having a large thickness. The rigidity of the accumulator container 71 can be improved at a lower cost compared to making the accumulator container 71 rigid.

Further, the welded portion 86 of the compressor 10 of the first embodiment is formed so as to connect the upper opening 84 and the lower opening 85 of the container body 81 in the outer peripheral surface 87 of the container body 81 . . In this case, in the compressor 10 of the first embodiment, the rigidity of the container body 81 is improved, so that the vibration transmitted from the compressor main body 1 to the accumulator container 71 deforms the container body 81 less. Therefore, the noise generated from the container body 81 can be reduced.

In addition, the container body 81 of the compressor 10 of the first embodiment is formed by forming a steel plate into a tubular shape so that two ends of the steel plate (a first portion that is one end and a second portion that is the other end) are in contact with each other. It is formed by joining two ends with a weld 86 . In this case, in the compressor 10 of the first embodiment, the rigidity of the container body 81 is improved by using the welded portion 86 formed when the container body 81 is formed, and the rigidity of the accumulator container 71 is reduced. Cost can be improved.

Further, the welded portion 86 of the compressor 10 of Example 1 is formed in a region 94 of the accumulator container 71 on the far side from the compressor housing 2 . In this case, the compressor 10 of the first embodiment can improve the rigidity of the region 94 of the accumulator container 71 on the far side from the compressor housing 2 . The noise generated from the portion far from 2 can be reduced.

In the compressor of Example 2, the container body 81 of the compressor 10 of Example 1 described above is replaced with another container body, and the other parts are the same as those of the compressor 10 of Example 1 described above. is the same as The container body is formed by forming a steel plate into a tubular shape so that two ends (the first portion and the second portion) of the steel plate overlap in the radial direction. are spliced. At this time, the welded portion 86 is formed along a line segment 88 along the outer peripheral surface 87 of the container body, similarly to the container body 81 described above. The thickness of the portion of the container body where the welded portion 86 is formed is the same as the thickness of the portion of the container body where the welded portion 86 is not formed due to the overlapping of the first portion and the second portion. greater than the thickness of

The compressor of Example 2 operates similarly to the compressor 10 of Example 1 already described. The welded portion 86 of the compressor of Example 2 has a larger diameter than the welded portion 86 of the compressor 10 of Example 1 described above because the first portion and the second portion overlap in the radial direction. Thicker, more rigid, less deformable. Therefore, the compressor of the second embodiment can further reduce the vibration generated at the welded portion 86 and the noise generated by the vibration can be further reduced as compared with the compressor 10 of the first embodiment. can do.

By the way, the already-described welded portion 86 is formed along a line segment 88 parallel to the central axis 73 of the internal space 74, but is replaced by a welded portion formed not along the line segment 88. may be The welded portion is exemplified by a welded portion formed along a string winding (spiral) along the outer peripheral surface of the container body portion 81 . Both ends of the previously described welded portion 86 are connected to the upper opening 84 and the lower opening 85 of the container body 81, and the plurality of welded portions are connected to the upper opening 84 or the lower opening 85. It doesn't have to be. Also, although the welded portion 86 is arranged in the region 94 of the accumulator container 71 on the far side from the compressor main body 1 , it may be arranged in a region different from the region 94 of the accumulator container 71 . Although one welded portion 86 is formed in the accumulator container 71 described above, another welded portion different from the welded portion 86 may be further formed. Even in such a case, the compressor can improve the rigidity of the accumulator container 71 at low cost and reduce the noise caused by the vibration of the accumulator container 71 at low cost by providing the welded portion.

By the way, although the accumulator container 71 described above is formed of three pieces, that is, the container body portion 81, the top portion 82, and the bottom portion 83, it may be formed of two pieces or less, or four pieces or more. may be formed from Even in such a case, the compressor can improve the rigidity of the accumulator container 71 at low cost and reduce the noise caused by the vibration of the accumulator container 71 at low cost by providing the welded portion 86 to the accumulator container 71. be able to.

By the way, although the compressor main body 1 described above is formed of a two-cylinder rotary compressor, it may be formed of another type of rotary compressor other than the two-cylinder type. Another type of rotary compressor is a one-cylinder rotary compressor having one cylinder. Further, although the compressor main body 1 described above is formed of a rotary type compression mechanism, it may be formed of another type of compression mechanism different from the rotary type. Another type of compression mechanism is a scroll type compression mechanism. Even in such a case, the compressor can improve the rigidity of the accumulator container 71 at low cost and reduce the noise caused by the vibration of the accumulator container 71 at low cost by providing the welded portion 86 to the accumulator container 71. be able to.

Although the embodiments have been described above, the embodiments are not limited by the contents described above. In addition, the components described above include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those within the so-called equivalent range. Furthermore, the components described above can be combined as appropriate. Furthermore, at least one of various omissions, replacements, and modifications of components can be made without departing from the gist of the embodiments.

10: Compressor 1: Compressor body 2: Compressor housing 8: Accumulator 71: Accumulator container 72: Accumulator body 81: Container body 82: Top part 83: Bottom part 86: Welding part

Claims (7)

an accumulator body that separates the refrigerant into liquid refrigerant and gas refrigerant;
an accumulator container forming a space in which the accumulator body is stored;
A compressor body that compresses the gas refrigerant,
The accumulator container is fixed to the compressor body,
A welded portion is formed on the outer peripheral surface of the accumulator container,
The thickness of the portion of the accumulator container where the welded portion is formed is greater than the thickness of the other portion of the accumulator container where the welded portion is not formed. The compressor according to claim 1, wherein the welded portion is formed along a line connecting one end of the container body forming the outer peripheral surface of the accumulator container and the other end of the container body. A seam between a first portion of the container body forming the outer peripheral surface of the accumulator container and a second portion different from the first portion of the container body is the welded portion. 3. A compressor according to claim 1 or claim 2, wherein the compressor is joined through 4. The compressor of claim 3, wherein the first portion overlaps the second portion. The compressor according to any one of claims 1 to 4, wherein the welded portion is formed in a region of the accumulator container on the far side from the compressor main body. An angle between a first plane including one end of the region and a second plane including the other end of the region among planes including the central axis of the accumulator container is 90 degrees. A compressor according to claim 5. Another welded portion is further formed on the outer peripheral surface by welding,
The compressor according to any one of claims 1 to 6, wherein the thickness of the other portion of the accumulator container where the other welded portion is formed is greater than the thickness of the other portion.

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