JP2018035711A - Compressor unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compressor unit in which an accumulator is fixed by a band attached to a support base that is fixed to a compressor main body capable of restricting noise caused by vibration of the accumulator.SOLUTION: A compressor unit in this invention comprises a compressor main body 10, an accumulator 40 extending in a vertical direction; and a support base 50 abutted against the accumulator at a first abutment part 62a and a second abutment part 62b to support them. As seen along the vertical direction, the first abutment part and the second abutment part abut against a part of an outer peripheral surface 40a of the accumulator where a center O of the compressor main body is applied as a center of arc and it is positioned from one of crossing points A1, A2 where an arc passing through the center P of the accumulator and an outer peripheral surface of the accumulator are crossed in a range of ±45 degrees around the center of the accumulator, the support base has a fixed part 72 expanded more outward than crossing points B1, B2 between tangential lines L1, L2 of the accumulator passing through the center O and the outer peripheral surface of the compressor main body and fixed to the compressor main body.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a compressor unit, and more specifically, to a compressor unit including a compressor body and an accumulator.

  2. Description of the Related Art Conventionally, there is known a compressor unit in which a band is attached to a support base fixed to a side surface of a compressor body, and an accumulator is fixed to the support base by the band. In such a compressor unit, the accumulator may vibrate due to vibrations of the compressor, which may cause noise.

  For example, Japanese Patent Application Laid-Open No. 2007-46572 proposes a compressor unit in which a vibration isolating member is disposed between a compressor and an accumulator in order to suppress noise. .

  However, the compressor unit disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 2007-46572) has room for improvement with respect to the generation of noise due to the vibration of the accumulator along the circumferential direction of the compressor body. .

  An object of the present invention is a compressor unit in which a band is attached to a support base fixed to a side surface of a compressor body, and an accumulator is fixed to the support base by the band, and generation of noise due to vibration of the accumulator can be suppressed. Is to provide a simple compressor unit.

  A compressor unit according to a first aspect of the present invention includes a compressor body, a columnar accumulator, a support base that supports the accumulator, and a band. The accumulator is connected to the compressor body via a suction pipe. The accumulator extends in the first direction. The support base is fixed to the side surface of the compressor body. The support base comes into contact with the accumulator at least at the first contact portion and the second contact portion. The band is attached to the support base. The band is wound around the accumulator to fix the accumulator to the support base. The accumulator intersection is an intersection where an arc passing through the center of the accumulator intersects with the outer peripheral surface of the accumulator when viewed along the first direction. Each of the first contact portion and the second contact portion contacts at least a part of the outer peripheral surface of the accumulator located within a range of ± 45 degrees around the center of the accumulator from one of the two accumulator intersections. When viewed along the first direction, the support base is a fixed portion that projects outward from the intersection of the two compressor bodies between the tangent line of the two accumulators passing through the center of the compressor body and the outer peripheral surface of the compressor body. Have At least the fixed portion is fixed to the outer peripheral surface of the compressor body.

  In addition, the case where the band is wound around the accumulator includes not only the case where the band is directly wound around the accumulator but also the case where the band is wound around the accumulator via another member. Further, the contact between the first contact portion and the second contact portion and the outer peripheral surface of the accumulator means that the first contact portion, the second contact portion, and the outer peripheral surface of the accumulator directly contact each other, This includes the case where the first contact portion and the second contact portion are in contact with the outer peripheral surface of the accumulator via another member.

  The fixing between the fixing portion and the outer peripheral surface of the compressor body includes, but is not limited to, welding and adhesion.

  In the compressor unit according to the first aspect of the present invention, when viewed in the first direction, the support base abuts on the outer peripheral surface of the accumulator located within a range of ± 45 degrees from the accumulator intersection around the center of the accumulator. ing. Thereby, the accumulator is firmly supported in the circumferential direction of the compressor body. Therefore, the vibration of the accumulator along the circumferential direction of the compressor body is suppressed by the support base, compared to the case where the first contact part and the second contact part contact the accumulator on the compressor body side than the above range. In addition, noise generation can be suppressed. Further, here, when viewed along the first direction, the support base has a fixing portion that protrudes outward from the compressor body intersection and is fixed to the side surface of the compressor body. Therefore, deformation and vibration of the support base can be suppressed, and vibration of the accumulator can be easily suppressed.

  The compressor unit according to the second aspect of the present invention is the compressor unit according to the first aspect, and when viewed along the first direction, the first contact portion and the second contact portion are respectively From one of the accumulator intersections, it comes into contact with at least a part of the outer peripheral surface of the accumulator located within a range of ± 25 degrees around the center of the accumulator.

  In the compressor unit according to the second aspect of the present invention, when viewed in the first direction, the support base is in contact with the outer peripheral surface of the accumulator located within a range of ± 25 degrees from the accumulator intersection around the center of the accumulator. ing. Thereby, the accumulator is more reliably supported in the circumferential direction of the compressor body. Therefore, it is easier to suppress the occurrence of noise by suppressing the vibration of the accumulator along the circumferential direction of the compressor body by the support base.

  A compressor unit according to a third aspect of the present invention is the compressor unit according to the first aspect or the second aspect, and both ends of the band are disposed at both ends of the support base when viewed along the first direction. Are attached to a first band support part and a second band support part, respectively. The first band support part and the second band support part are disposed in the vicinity of the first contact part and the second contact part, respectively.

  In the compressor unit according to the third aspect of the present invention, it is easy to firmly fix the accumulator to the support base by the band by arranging the band support portion in the vicinity of the contact portion.

  The compressor unit which concerns on the 4th viewpoint of this invention is a compressor unit which concerns on either of a 1st viewpoint to the 3rd viewpoint, Comprising: A support stand contains an arm member and a rib. The arm member has a first contact portion and a second contact portion. The rib extends from the arm member toward the compressor body. The rib has a fixed portion.

  In the compressor unit according to the fourth aspect of the present invention, while suppressing the increase in size and weight of the support base, the support base is provided with the necessary strength and the vibration of the accumulator along the circumferential direction of the compressor body is suppressed. Easy to do.

  A compressor unit according to a fifth aspect of the present invention is the compressor unit according to any one of the first to fourth aspects, and the band is made of metal. Rubber is disposed between the accumulator and the band and between the contact points between the accumulator and the support base.

  In the compressor unit according to the fifth aspect of the present invention, it is possible to prevent the accumulator and the band or the support base from coming into contact with each other and to firmly fix the accumulator.

  A compressor unit according to a sixth aspect of the present invention is the compressor unit according to any one of the first to fifth aspects, and the accumulator is pressed against the support base by the tension acting on the band.

  In the compressor unit according to the sixth aspect of the present invention, it is possible to firmly fix the accumulator to the support base by pressing the accumulator against the support base by the tension acting on the band.

  In the compressor unit according to the first aspect of the present invention, when viewed in the first direction, the support base abuts on the outer peripheral surface of the accumulator located within a range of ± 45 degrees from the accumulator intersection around the center of the accumulator. ing. Thereby, the accumulator is firmly supported in the circumferential direction of the compressor body. Therefore, the vibration of the accumulator along the circumferential direction of the compressor body is suppressed by the support base, compared to the case where the first contact part and the second contact part contact the accumulator on the compressor body side than the above range. In addition, noise generation can be suppressed. Further, here, when viewed along the first direction, the support base has a fixing portion that protrudes outward from the compressor body intersection and is fixed to the side surface of the compressor body. Therefore, it is possible to easily suppress the vibration of the accumulator by suppressing the deformation and vibration of the support base.

  In the compressor unit according to the second aspect of the present invention, it is easier to suppress the generation of noise by suppressing the vibration of the accumulator along the circumferential direction of the compressor body by the support base.

  In the compressor unit according to the third aspect of the present invention, it is easy to firmly fix the accumulator to the support base by the band.

  In the compressor unit according to the fourth aspect of the present invention, while suppressing the increase in size and weight of the support base, the support base is provided with the necessary strength and the vibration of the accumulator along the circumferential direction of the compressor body is suppressed. Easy to do.

  In the compressor unit according to the fifth aspect of the present invention, it is possible to prevent the accumulator and the band or the support base from coming into contact with each other and to firmly fix the accumulator.

  In the compressor unit according to the sixth aspect of the present invention, the accumulator can be firmly fixed to the support base.

It is a schematic side view of the compressor unit which concerns on one Embodiment of this invention. It is a schematic block diagram of the compressor unit of FIG. It is sectional drawing of the compressor unit of FIG. 1 at the III-III arrow. Drawing of the structure in the compressor main body and the accumulator is omitted. It is sectional drawing of the compressor unit of the modification B. It is sectional drawing which cut | disconnected the compressor unit by the cross section similar to FIG. Drawing of the structure in the compressor body and in the accumulator is omitted.

  Hereinafter, a compressor unit 100 according to an embodiment of the present invention will be described with reference to the drawings.

  In addition, the compressor unit 100 demonstrated below is an example of the compressor unit which concerns on this invention, Comprising: This invention is not limited. The configuration of the compressor unit can be changed as appropriate without departing from the scope of the present invention.

(1) Overall Configuration The compressor unit 100 according to the present embodiment is used for compressing a refrigerant. The compressor unit 100 is used, for example, in an outdoor unit of an air conditioner and constitutes a part of a refrigerant circuit of the air conditioner. The refrigerant to be compressed is, for example, R32 of HFC refrigerant. However, the type of refrigerant is an example, and is not limited to R32.

  The compressor unit 100 mainly includes a compressor main body 10, an accumulator 40, a support base 50, a band 80, and a rubber 90 (see FIGS. 1 and 3).

(2) Detailed Configuration Each configuration of the compressor unit 100 will be described below.

  In the following description, expressions such as “upper” and “lower” may be used for the description of the position and direction, but unless otherwise specified, the direction of the arrow U in FIG.

(2-1) Compressor Main Body The compressor main body 10 mainly includes a casing 20, a compression mechanism 11, a motor 12, and a shaft 13 (see FIG. 2).

  The casing 20 is a cylindrical container (see FIGS. 1 and 3). The casing 20 accommodates the compression mechanism 11, the motor 12, and the shaft 13 therein. The casing 20 includes a cylindrical portion 22, a top 21a, and a bottom 21b (see FIG. 1). The cylindrical portion 22 is a cylindrical member that extends in the vertical direction. The top 21a and the bottom 21b are bowl-shaped members. The top 21 a is attached by, for example, welding so as to close the opening above the cylindrical portion 22. The bottom 21b is attached by, for example, welding so as to close the opening below the cylindrical portion 22.

  A suction pipe 30 is attached to the lower portion of the cylindrical portion 22 (see FIG. 1). The suction pipe 30 connects the accumulator 40 and the compressor body 10. A low-pressure refrigerant in the refrigeration cycle is supplied to the compression mechanism 11 of the compressor body 10 through the suction pipe 30.

  A discharge pipe 35 is attached to the top 21a (see FIG. 1). The high-pressure refrigerant in the refrigeration cycle compressed by the compression mechanism 11 is discharged from the discharge pipe 35 to the outside of the compressor body 10.

  The compression mechanism 11 is connected to the motor 12 via the shaft 13 (see FIG. 2). Although the compression mechanism 11 is not limited, For example, it is a rotary mechanism, a scroll mechanism, or a swing mechanism. When the motor 12 is operated, the refrigerant flowing from the suction pipe 30 is compressed by the compression mechanism 11. The refrigerant compressed by the compression mechanism 11 is discharged from the discharge pipe 35.

(2-2) Accumulator The accumulator 40 is a container that performs gas-liquid separation of refrigerant and storage of refrigerant.

  The accumulator 40 is a cylindrical container extending in the vertical direction (see FIGS. 1 and 3). The central axis of the casing 20 of the cylindrical compressor body 10 and the central axis of the cylindrical accumulator 40 extend in the vertical direction substantially in parallel. The accumulator 40 is connected to the compressor body 10 via the suction pipe 30. The refrigerant flowing from the pipe 41 (see FIG. 1) connected to the upper portion of the accumulator 40 is separated into gas and liquid by the accumulator 40, and the gaseous refrigerant is supplied to the compression mechanism 11 of the compressor body 10 through the suction pipe 30. The

(2-3) Support stand The support stand 50 is a member that supports the accumulator 40.

  The support base 50 is fixed to the side surface of the compressor body 10. Specifically, the support base 50 is fixed to the side surface of the cylindrical portion 22 of the casing 20 of the compressor body 10 (see FIG. 1).

  The support base 50 includes an arm member 60 and a rib 70 (see FIGS. 1 and 3).

(2-3-1) Arm Member The arm member 60 mainly includes a connecting portion 66, two arms 68, a first contact portion 62a and a second contact portion 62b, and a first band support portion 64a. And a second band support portion 64b (see FIG. 3). Although not limited, the arm member 60 includes a connecting portion 66, an arm 68, a first contact portion 62a and a second contact portion 62b, and a first band support portion 64a and a second band support portion 64b. It is a formed member. The arm member 60 is not limited, but is made of metal, for example.

  The arm member 60 is connected to the side surface of the cylindrical portion 22 of the casing 20 of the compressor body 10 at the connecting portion 66. In plan view, the connecting portion 66 is formed in an arc shape along the outer peripheral surface 22a of the cylindrical portion 22 of the casing 20 (see FIG. 3).

  The connecting portion 66 is fixed to the outer peripheral surface 22 a of the cylindrical portion 22 of the casing 20 at the arm member fixing portion 67. The arm member fixing portion 67 is disposed at the center of the connecting portion 66 in plan view (see the position of the circle denoted by reference numeral 67). For example, the connecting portion 66 is welded to the outer peripheral surface 22 a of the cylindrical portion 22 of the casing 20 in the arm member fixing portion 67. Specifically, for example, the connecting portion 66 is welded to the outer peripheral surface 22a of the cylindrical portion 22 of the casing 20 by spot welding at the arm member fixing portion 67.

  In addition, the adhering method of the connection part 66 and the outer peripheral surface 22a is an illustration, Comprising: The connection part 66 may be adhere | attached on the outer peripheral surface 22a in the arm member fixing | fixed part 67. FIG. Here, only a part of the connecting portion 66 is fixed to the outer peripheral surface 22a of the cylindrical portion 22 of the casing 20, but the entire connecting portion 66 is fixed to the outer peripheral surface 22a of the cylindrical portion 22 of the casing 20. Also good. Here, the connecting portion 66 is fixed to the outer peripheral surface 22a of the cylindrical portion 22 of the casing 20 only at one location, but the connecting portion 66 is fixed to the outer peripheral surface 22a of the cylindrical portion 22 of the casing 20 at a plurality of locations. May be.

  Each of the two arms 68 extends away from the compressor main body 10 (the cylindrical portion 22 of the casing 20) from one of both ends of the connecting portion 66 in plan view (see FIG. 3). Each arm 68 extending from the connecting portion 66 is provided with a first contact portion 62a and a second contact portion 62b (see FIG. 3). The first contact portion 62a and the second contact portion 62b are respectively provided at the tips of the arms 68 extending from the connecting portion 66 (see FIG. 3).

  The first contact portion 62a and the second contact portion 62b are in contact with the accumulator 40 supported by the support base 50. As will be described later, the accumulator 40 is fixed to the support base 50 by the accumulator 40 being pressed against the first contact portion 62 a and the second contact portion 62 b by the tension acting on the band 80.

  In a side view, the first contact portion 62a and the second contact portion 62b are in contact with the vicinity of the central portion of the accumulator 40 (see FIG. 1). In other words, in the vertical direction, the first contact portion 62a and the second contact portion 62b are in contact with the vicinity of the central portion of the accumulator 40 (see FIG. 1).

  In a plan view, that is, when the compressor unit 100 is viewed along the vertical direction (particularly when the compressor unit 100 is viewed downward in the following description), the first contact portion 62a and the second contact The contact position of the contact portion 62b with the outer peripheral surface 40a of the accumulator 40 will be described below with reference mainly to the cross-sectional view of FIG.

  First, accumulator intersections A1 and A2 are defined. The accumulator intersections A1 and A2 are, when viewed downward, a virtual arc C1 passing through the center P of the accumulator 40 with the center O of the cylindrical compressor body 10 (casing 20) as the arc center, and the outer peripheral surface of the accumulator 40. This is the intersection where 40a intersects (see FIG. 3).

  Next, the contact positions of the first contact portion 62a and the second contact portion 62b with the outer peripheral surface 40a of the accumulator 40 will be described. Note that the contact between the first contact portion 62a and the second contact portion 62b and the outer peripheral surface 40a of the accumulator 40 means that the first contact portion 62a and the second contact portion 62b and the outer peripheral surface 40a of the accumulator 40 are in contact. And the case where the first contact portion 62a and the second contact portion 62b contact the outer peripheral surface 40a of the accumulator 40 via other members. In the present embodiment, the first contact portion 62 a and the second contact portion 62 b are in contact with the outer peripheral surface 40 a of the accumulator 40 via rubber 90.

  When viewed downward, the first contact portion 62a contacts at least a part of the outer peripheral surface 40a of the accumulator 40 located within a range of ± α degrees around the center P of the accumulator 40 from the accumulator intersection A1. Further, when viewed downward, the second contact portion 62b contacts at least a part of the outer peripheral surface 40a of the accumulator 40 located in a range of ± α degrees around the center P of the accumulator 40 from the accumulator intersection A2. Here, the clockwise angle with respect to the reference point (accumulator intersections A1, A2) is represented by a positive angle, and the counterclockwise angle with respect to the reference point is represented by a negative angle.

  Here, the 1st contact part 62a and the 2nd contact part 62b, and the outer peripheral surface 40a of the accumulator 40 are contact | abutted in the comparatively narrow range. In other words, the first contact portion 62a and the second contact portion 62b and the outer peripheral surface 40a of the accumulator 40 are located in the range of ± α degrees around the center P of the accumulator 40 from the accumulator intersections A1 and A2. Is in contact with a part of the outer peripheral surface 40a. However, it is not limited to this, The 1st contact part 62a and the 2nd contact part 62b, and the outer peripheral surface 40a of the accumulator 40 may contact | abut in a comparatively wide range. For example, the first contact portion 62a and the second contact portion 62b and the outer peripheral surface 40a of the accumulator 40 are the accumulator 40 located within a range of ± α degrees around the center P of the accumulator 40 from the accumulator intersections A1 and A2. You may contact | abut with the whole outer peripheral surface 40a. Further, for example, the first contact portion 62a and the second contact portion 62b and the outer peripheral surface 40a of the accumulator 40 are located in a range of ± α degrees around the center P of the accumulator 40 from the accumulator intersections A1 and A2. You may contact | abut a part of 40 outer peripheral surfaces 40a at several places (not one place like the said embodiment).

  The first contact portion 62a and the second contact portion 62b are arranged symmetrically with respect to an imaginary straight line connecting the center O of the compressor body 10 and the center P of the accumulator 40 in plan view.

  The value of α is preferably 45. In other words, the first contact portion 62a and the second contact portion 62b are each an outer peripheral surface of the accumulator 40 located within a range of ± 45 degrees around the center P of the accumulator 40 from one of the two accumulator intersections A1 and A2. It is preferable to contact at least a part of 40a. At such a position, the first contact portion 62a and the second contact portion 62b contact the outer peripheral surface 40a of the accumulator 40, thereby supporting the accumulator 40 along the circumferential direction of the compressor body 10. The vibration along the circumferential direction of the compressor body 10 of the accumulator 40 can be suppressed.

  The value of α is more preferably 25. In other words, the first contact portion 62a and the second contact portion 62b are each an outer peripheral surface of the accumulator 40 located within a range of ± 25 degrees around the center P of the accumulator 40 from one of the two accumulator intersections A1 and A2. More preferably, it abuts at least a part of 40a. In such a position, the first contact portion 62a and the second contact portion 62b are in contact with the outer peripheral surface 40a of the accumulator 40, so that the accumulator 40 is easily supported along the circumferential direction of the compressor body 10. The vibration along the circumferential direction of the compressor body 10 of the accumulator 40 is easily suppressed.

  Further, it is more preferable that the first contact portion 62a and the second contact portion 62b contact the outer peripheral surface 40a of the accumulator 40 as close as possible to the accumulator intersections A1 and A2 when viewed along the vertical direction. In particular, when viewed along the vertical direction, the first contact portion 62a contacts the outer peripheral surface 40a of the accumulator 40 at the accumulator intersection A1, and the second contact portion 62b contacts the outer peripheral surface 40a of the accumulator 40 at the accumulator intersection A2. It is preferable to abut. In such a position, the first abutment portion 62a and the second abutment portion 62b abut against the outer peripheral surface 40a of the accumulator 40, so that the accumulator 40 is particularly supported along the circumferential direction of the compressor body 10. In particular, vibration along the circumferential direction of the compressor body 10 of the accumulator 40 is particularly easily suppressed.

  The first band support part 64a and the second band support part 64b are disposed at both ends of the support base 50 when viewed in the vertical direction. More specifically, the first band support portion 64a and the second band support portion 64b are disposed at both ends of the arm member 60 of the support base 50 when viewed in the vertical direction.

  The first band support part 64a and the second band support part 64b are arranged in the vicinity of the first contact part 62a and the second contact part 62b, respectively. Specifically, the first band support portion 64a is disposed adjacent to the first contact portion 62a. The first band support portion 64 a is connected to an end portion of the first contact portion 62 a that is disposed on the side opposite to the arm 68. The first band support portion 64a extends from the first contact portion 62a in the substantially circumferential direction around the center O of the compressor body 10. The second band support portion 64b is disposed adjacent to the second contact portion 62b. The second band support portion 64 b is connected to an end portion of the second contact portion 62 b that is disposed on the side opposite to the arm 68. The second band support portion 64b extends from the second contact portion 62b in the substantially circumferential direction around the center O of the compressor body 10.

  The first band support part 64a and the second band support part 64b are disposed in the vicinity of the first contact part 62a and the second contact part 62b, respectively, so that the first band support part 64a and the second band support part are supported. The part 64b is disposed in the vicinity of a point of the arm member 60 that contacts the accumulator 40.

  One end of each band 80 is attached to each of the first band support portion 64a and the second band support portion 64b. The first end 82 of the band 80 is attached to the first band support portion 64a. The second end 84 of the band 80 is attached to the second band support portion 64b. One end of the band 80 is attached to the first band support part 64 a and the second band support part 64 b by a fixing member 88. The fixing member 88 mainly includes, for example, a bolt and a nut, and fixes the band 80 to the first band support portion 64a and the second band support portion 64b by screwing the bolt into the nut. The first band support part 64 a and the second band support part 64 b support the attached band 80.

(2-3-2) Rib The rib 70 is a member on a flat plate (see FIG. 1). The rib 70 is a member on a flat plate that extends along a horizontal plane. The rib 70 is not limited, but is made of metal, for example.

  The rib 70 extends from the arm member 60 toward the compressor body 10 (see FIG. 3). Specifically, the rib 70 extends from the surface of the arm 68 of the arm member 60 on the compressor body 10 side toward the compressor body 10. The rib 70 is fixed to the arm 68 by welding, for example. The rib 70 is formed in a generally triangular shape in plan view (see FIG. 3). However, the rib 70 is formed in an arc shape in plan view with respect to a portion facing the outer peripheral surface 22a so as to be along the outer peripheral surface 22a of the cylindrical portion 22 of the compressor body 10.

  The rib 70 is fixed to the outer peripheral surface 22a of the cylindrical portion 22 of the casing 20 at the fixing portion 72 (see a round position denoted by reference numeral 72). For example, the rib 70 is welded to the outer peripheral surface 22 a of the cylindrical portion 22 of the casing 20 at the fixing portion 72. Specifically, for example, the rib 70 is welded to the outer peripheral surface 22a of the cylindrical portion 22 of the casing 20 at the fixing portion 72 by spot welding. The fixing method between the rib 70 and the outer peripheral surface 22 a of the cylindrical portion 22 is an example, and the rib 70 may be bonded to the outer peripheral surface 22 a of the cylindrical portion 22 at the fixing portion 72.

  In the plan view, that is, when the compressor unit 100 is viewed along the vertical direction (particularly when the compressor unit 100 is viewed downward in the following description), the position of the fixing portion 72 is mainly illustrated. This will be described below with reference to FIG.

  First, compressor main body intersections B1 and B2 are defined. The compressor main body intersections B1 and B2 are respectively tangents L1 and L2 of two virtual accumulators 40 passing through the center O of the compressor main body 10 when the compressor unit 100 is viewed downward, and the compressor main body 10. It is an intersection with the outer peripheral surface 22a of the casing 20 (see FIG. 3).

  Next, the position of the fixing part 72 will be described.

  When viewed downward, the fixing portion 72 projects outward from the compressor body intersections B1 and B2. In addition, when it looks down, the fixing | fixed part 72 has protruded outside the compressor main body intersection B1, B2 that the fixing | fixed part 72 is far from the accumulator 40 rather than the compressor main body intersection B1, B2. It means that it is arranged. When the compressor unit 100 is viewed downward, an imaginary straight line connecting the center O of the compressor body 10 and the fixed portion 72 does not intersect or contact the outer peripheral surface 40a of the accumulator 40.

  Here, the surface of the rib 70 facing the outer peripheral surface 22a of the cylindrical portion 22 is fixed to the outer peripheral surface 22a of the cylindrical portion 22 only partly, but the outer peripheral surface 22a of the cylindrical portion 22 of the rib 70 is fixed. As for the surface which opposes, the whole may adhere to the outer peripheral surface 22a of the cylindrical part 22. FIG. In this case, at least a part of the surface of the rib 70 facing the outer peripheral surface 22a of the cylindrical portion 22 is configured to protrude outward from the compressor main body intersections B1 and B2. That is, the support base 50 has the fixing | fixed part 72 which protrudes outside the compressor main body intersection B1, B2 when it looks downward.

  Here, the surface of each rib 70 facing the outer peripheral surface 22a of the cylindrical portion 22 is fixed to the outer peripheral surface 22a of the cylindrical portion 22 only at one location, but the outer peripheral surface of the cylindrical portion 22 of each rib 70 is fixed. The surface facing 22a may be fixed to the outer peripheral surface 22a of the cylindrical portion 22 at a plurality of locations. In this case, at least a part of the location facing the outer peripheral surface 22a of the cylindrical portion 22 of each rib 70 and fixed to the outer peripheral surface 22a is configured to protrude outward from the compressor body intersections B1 and B2. The That is, the support base 50 has the fixing | fixed part 72 which protrudes outside the compressor main body intersection B1, B2 when it looks downward.

  The above-described arm member fixing portion 67 of the arm member 60 is located on the inner side of the compressor main body intersections B1 and B2. Therefore, an imaginary straight line connecting the center O of the compressor body 10 and the arm member fixing portion 67 intersects the outer peripheral surface 40 a of the accumulator 40. By having the fixing portion 72 that protrudes outward from the compressor main body intersections B1 and B2 when viewed in the vertical direction, the arm base fixing portion 67 alone is used to support the support base 50 with the outer peripheral surface 22a of the cylindrical portion 22 of the casing 20. Compared with the case where it fixes, the support stand 50 is fixed to the compressor main body 10 firmly. Therefore, the vibration of the accumulator 40 supported by the support base 50 is easily suppressed.

(2-4) Band The band 80 is a member that is wound around the outer peripheral surface 40 a of the accumulator 40 and fixes the accumulator 40 to the support base 50. The band 80 is wound around an intermediate portion of the accumulator 40 in the vertical direction. The band 80 being wound around the accumulator 40 includes not only the case where the band 80 is directly wound around the accumulator 40 but also the case where the band 80 is wound around the accumulator 40 via another member. In the present embodiment, the band 80 is wound around the accumulator 40 via the rubber 90.

  The band 80 is wound around the side of the accumulator 40 opposite to the compressor body 10. Specifically, the band 80 is arranged so that the inner surface of the arc-shaped portion of the band 80 faces the side of the outer peripheral surface 40a of the accumulator 40 that is disposed on the side opposite to the compressor body 10 via the rubber 90. It is wound around the accumulator 40. The band 80 is wound around the accumulator 40 from the vicinity of the first contact portion 62a of the support base 50 to the vicinity of the second contact portion 62b of the support base 50. The band 80 is not limited, but is made of metal, for example.

  Both ends of the band 80 are attached to the support base 50. Specifically, the first end 82 of the band 80 is attached to the first band support portion 64 a of the arm member 60 of the support base 50. The second end 84 of the band 80 is attached to the second band support portion 64 b of the arm member 60 of the support base 50.

  A first end 82 of the band 80 is attached to the first band support portion 64a, and a second end 84 of the band 80 is attached to the second band support portion 64b by a fixing member 88, respectively. The fixing member 88 mainly has a bolt and a nut, for example, and fixes the band 80 to the band support parts 64a and 64b by screwing the bolt into the nut. However, the method of attaching the band 80 to the band support portion is an example, and is not limited to this. For example, the first end 82 of the band 80 is hooked and attached to the first band support portion 64a, and the second end 84 of the band 80 is attached to the second band support portion 64b with a fixing member 88 mainly including bolts and nuts. May be. Further, for example, the fixing member 88 may be a snap lock or the like.

  For example, after the band 80 is wound around the accumulator 40, the first end 82 is attached to the first band support portion 64a by the fixing member 88, and the second end 84 is further fixed to the second band support portion 64b. As a result, the accumulator 40 is pressed against the support base 50. Specifically, when the second end 84 is attached to the second band support portion 64b with the fixing member 88, the accumulator 40 is moved by the tension acting on the band 80 so that the first contact portion 62a and the second contact portion of the support base 50 are contacted. It is pressed against the part 62b (via the rubber 90).

(2-5) Rubber The rubber 90 is wound around the outer peripheral surface 40a of the accumulator 40. The rubber 90 is wound around a part of the outer circumferential surface 40a of the accumulator 40 in the circumferential direction, not the entire circumference of the outer circumferential surface 40a of the accumulator 40. The rubber 90 is disposed between the accumulator 40 and the band 80 and between the contact points between the accumulator 40 and the support base 50. As a result, the accumulator 40, the band 80, and the support base 50 are not in direct contact but are in contact via the rubber 90. The width (height in the vertical direction) of the rubber 90 is configured substantially the same as the width (height in the vertical direction) of the band 80.

(3) Features (3-1)
The compressor unit 100 according to the embodiment includes the compressor main body 10, a columnar accumulator 40 extending in the vertical direction, a support base 50 that supports the accumulator 40, and a band 80. The up-down direction is an example of the first direction. The accumulator 40 is connected to the compressor body 10 via the suction pipe 30. The support base 50 is fixed to the side surface of the casing 20 of the compressor body 10. The support base 50 contacts the accumulator 40 at least at the first contact portion 62a and the second contact portion 62b. The bands 80 are attached to the support base 50, respectively. The band 80 is wound around the accumulator 40 and fixes the accumulator 40 to the support base 50. When viewed along the vertical direction, the first contact portion 62a and the second contact portion 62b are within a range of ± 45 degrees around the center P of the accumulator 40 from one of the two accumulator intersections A1 and A2, respectively. It contacts at least a part of the outer peripheral surface 40a of the accumulator 40 that is positioned. Specifically, when viewed downward, the first abutting portion 62a is in contact with a part of the outer peripheral surface 40a of the accumulator 40 located within a range of ± 45 degrees around the center P of the accumulator 40 from the accumulator intersection A1. Touch. Further, when viewed downward, the second contact portion 62b contacts a part of the outer peripheral surface 40a of the accumulator 40 located within a range of ± 45 degrees around the center P of the accumulator 40 from the accumulator intersection A2. The accumulator intersections A1 and A2 are intersections where the arc C1 passing through the center P of the accumulator 40 and the outer peripheral surface 40a of the accumulator 40 intersect with each other when viewed in the vertical direction. When viewed along the vertical direction, the support base 50 has two compressions, tangent lines L1 and L2 of the two accumulators 40 passing through the center O of the compressor body 10 and an outer peripheral surface 22a of the casing 20 of the compressor body 10. It has a fixing portion 72 projecting outward from the machine body intersections B1 and B2. At least the fixing portion 72 of the support base 50 is fixed to the outer peripheral surface 22 a of the casing 20 of the compressor body 10. Specifically, when viewed downward, the support base 50 is from the compressor body intersection B1 between the tangent line L1 of the accumulator 40 passing through the center O of the compressor body 10 and the outer peripheral surface 22a of the casing 20 of the compressor body 10. Also has a fixing portion 72 projecting outward. When viewed downward, the support base 50 is located outside the compressor body intersection B2 between the tangent line L2 of the accumulator 40 passing through the center O of the compressor body 10 and the outer peripheral surface 22a of the casing 20 of the compressor body 10. An overhanging fixing portion 72 is provided.

  In the compressor unit 100 according to the above embodiment, the outer periphery of the accumulator 40 in which the support base 50 is located in the range of ± 45 degrees from the accumulator intersections A1 and A2 around the center P of the accumulator 40 when viewed in the vertical direction. It is in contact with the surface 40a. Thereby, the accumulator 40 is firmly supported in the circumferential direction of the compressor body 10. Therefore, compared with the case where the 1st contact part 62a and the 2nd contact part 62b contact the accumulator 40 by the compressor main body 10 side rather than said range, the accumulator 40 along the circumferential direction of the compressor main body 10 is compared. Vibration can be suppressed by the support base 50, and noise generation can be suppressed. Further, here, the support base 50 has a fixing portion 72 that protrudes outward from the intersection of the compressor body 10 and is fixed to the side surface of the compressor body 10 when viewed along the vertical direction. Therefore, deformation of the support base 50 and vibration can be suppressed, and vibration of the accumulator 40 can be easily suppressed.

  In the compressor unit 100, when viewed in the vertical direction, the first contact portion 62a and the second contact portion 62b are respectively located around the center of the accumulator 40 from one of the accumulator intersections A1 and A2. It is preferable to contact at least a part of the outer peripheral surface 40a of the accumulator 40 located in the range of 25 degrees. Specifically, when viewed downward, the first abutting portion 62a contacts the part of the outer peripheral surface 40a of the accumulator 40 located within a range of ± 25 degrees around the center P of the accumulator 40 from the accumulator intersection A1. It is preferable to contact. Further, when viewed downward, the second contact portion 62b may contact a part of the outer peripheral surface 40a of the accumulator 40 located within a range of ± 25 degrees around the center P of the accumulator 40 from the accumulator intersection A2. preferable.

  With this configuration, the accumulator 40 is more reliably supported in the circumferential direction of the compressor body 10. Therefore, it is easier to suppress the vibration of the accumulator 40 along the circumferential direction of the compressor body 10 by the support base 50 and suppress the generation of noise.

  In the compressor unit 100, when viewed in the vertical direction, the first contact portion 62a and the second contact portion 62b can contact the outer peripheral surface 40a of the accumulator 40 as close as possible to the accumulator intersections A1 and A2. Further preferred. In particular, in the compressor unit 100, when viewed downward, the first contact portion 62a contacts the outer peripheral surface 40a of the accumulator 40 at the accumulator intersection A1, and the second contact portion 62b is the outer periphery of the accumulator 40 at the accumulator intersection A2. It is preferable to contact the surface 40a.

(3-2)
In the compressor unit 100 according to the above embodiment, both ends (the first end 82 and the second end 84) of the band 80 are the first of the support base 50 disposed at both ends of the support base 50 when viewed along the vertical direction. The first band support part 64a and the second band support part 64b are respectively attached. The first band support part 64a and the second band support part 64b are arranged in the vicinity of the first contact part 62a and the second contact part 62b, respectively. Preferably, the first band support part 64a and the second band support part 64b are disposed adjacent to the first contact part 62a and the second contact part 62b, respectively.

  In the compressor unit 100 according to the above-described embodiment, it is easy to firmly fix the accumulator 40 to the support base 50 by the band 80 by arranging the band support portions 64a and 64b in the vicinity of the contact portions 62a and 62b. is there.

(3-3)
In the compressor unit 100 according to the embodiment, the support base 50 includes the arm member 60 and the rib 70. The arm member 60 includes a first contact portion 62a and a second contact portion 62b. The rib 70 extends from the arm member 60 to the compressor body 10 side. The rib 70 has a fixing portion 72.

  In the compressor unit 100 according to the above-described embodiment, necessary strength is given to the support base 50 while suppressing the increase in size and weight of the support base 50, and the vibration of the accumulator 40 along the circumferential direction of the compressor body 10 is performed. Is easy to suppress.

(3-4)
In the compressor unit 100 according to the embodiment, the band 80 is made of metal. Rubber 90 is disposed between the accumulator 40 and the band 80 and between the contact points between the accumulator 40 and the support base 50.

  In the compressor unit 100 according to the above embodiment, the accumulator 40 and the band 80 or the support base 50 can be prevented from coming into contact with each other, and the accumulator 40 can be firmly fixed.

(3-5)
In the compressor unit 100 according to the embodiment, the accumulator 40 is pressed against the support base 50 by the tension acting on the band 80.

  In the compressor unit 100 according to the above-described embodiment, the accumulator 40 can be pressed against the support base 50 by the tension acting on the band 80, and the accumulator 40 can be firmly fixed to the support base 50.

(4) Modifications Modifications of the above embodiment are shown below. A plurality of the following modifications may be combined as long as they do not contradict each other.

(4-1) Modification A
In the compressor unit 100 according to the above embodiment, the band support portions 64a and 64b are disposed adjacent to the contact portions 62a and 62b.

  However, the configuration of the compressor unit according to the present invention is not limited to the configuration of the above embodiment. The band support portions 64a and 64b may not be adjacent to the contact portions 62a and 62b. Further, the band support portions 64a and 64b may be arranged not in the vicinity of the contact portions 62a and 62b but apart from the contact portions 62a and 62b.

(4-2) Modification B
In the compressor unit 100 according to the embodiment, the support base 50 includes the rib 70. However, the configuration of the compressor unit according to the present invention is not limited to the above configuration, and the support base may not have a rib.

  For example, in the compressor unit of another form, the support base 150 does not have the rib 70 (refer FIG. 4). The connecting portion 66 of the arm member 160 of the support base 150 includes a fixing portion 172 that projects outward from the compressor main body intersections B1 and B2 when viewed in the vertical direction. The fixing portion 172 is fixed to the outer peripheral surface 22 a of the casing 20 of the compressor body 10.

(4-3) Modification C
In the compressor unit 100 according to the embodiment, the band 80 is made of metal. The band 80 is preferably made of metal from the viewpoint of durability or the like, but may not be made of metal. The band 80 may be made of other materials such as resin, for example.

(4-4) Modification D
In the compressor unit 100 according to the above-described embodiment, the support base 50 contacts the accumulator 40 only at the first contact portion 62a and the second contact portion 62b, but is not limited thereto. For example, the support base 50 may be configured such that the outer peripheral surface of the connecting portion 66 is in contact with the accumulator 40.

(4-5) Modification E
In the above embodiment, the first contact portion 62a and the second contact portion 62b are arranged symmetrically with respect to an imaginary straight line connecting the center O of the compressor body 10 and the center P of the accumulator 40 in plan view. The However, it is not limited to this, The 1st contact part 62a and the 2nd contact part 62b may be arrange | positioned asymmetrically with respect to the said virtual straight line.

  However, in order to suppress the vibration of the accumulator 40 along the circumferential direction of the compressor body 10, the first contact portion 62a and the second contact portion 62b are arranged symmetrically with respect to the virtual straight line. It is preferable.

  INDUSTRIAL APPLICABILITY The present invention is widely applicable and useful for a compressor unit in which a band is attached to a support base fixed to a side surface of a compressor body, and an accumulator is fixed to the support base by the band.

10 Compressor body 22a Compressor body outer peripheral surface 30 Suction pipe 40 Accumulator 40a Accumulator outer peripheral surface 50, 150 Support base 60 Arm member 62a First contact portion 62b Second contact portion 64a First band support portion 64b Second Band support portion 70 Ribs 72 and 172 Fixing portion 80 Band 82 First end (end of band)
84 Second end (end of band)
90 Rubber 100 Compressor unit A1, A2 Accumulator intersection B1, B2 Compressor body intersection C1 Arc L1, L2 Tangent O Center of compressor body P Center of accumulator

JP 2007-46572 A

Claims (6)

A compressor body (10);
A columnar accumulator (40) extending in a first direction, connected to the compressor body via a suction pipe (30);
A support base (50, 150) that is fixed to a side surface of the compressor main body, contacts the accumulator at least at the first contact portion (62a) and the second contact portion (62b), and supports the accumulator;
A band (80) attached to the support base and wound around the accumulator to fix the accumulator to the support base;
With
When viewed along the first direction, each of the first contact portion and the second contact portion has a center (O) of the compressor body as an arc center and a center (P) of the accumulator. The outer peripheral surface of the accumulator located within a range of ± 45 degrees around the center of the accumulator from one of two accumulator intersections (A1, A2) where the passing arc (C1) and the outer peripheral surface (40a) of the accumulator intersect Abutting at least a part of
And,
When viewed along the first direction, the support base is formed between the tangent lines (L1, L2) of the two accumulators passing through the center of the compressor body and the outer peripheral surface (22a) of the compressor body. Having fixed portions (72, 172) projecting outward from the two compressor main body intersections (B1, B2), at least the fixed portion being fixed to the outer peripheral surface of the compressor main body,
Compressor unit (100). When viewed along the first direction, each of the first contact portion and the second contact portion is located within a range of ± 25 degrees around the center of the accumulator from one of the accumulator intersections. Abuts at least a portion of the outer peripheral surface of the accumulator;
The compressor unit according to claim 1. Both ends (82, 84) of the band are disposed at both ends of the support base when viewed along the first direction, and the first band support part (64a) and the second band support part (64b) of the support base. ) Respectively,
The first band support part and the second band support part are disposed in the vicinity of the first contact part and the second contact part, respectively.
The compressor unit according to claim 1 or 2. The support base (50) has an arm member (60) having the first contact portion and the second contact portion, and extends from the arm member to the compressor body side, and has the fixing portion (72). A rib (70),
The compressor unit according to any one of claims 1 to 3. The band is made of metal,
Rubber (90) is disposed between the accumulator and the band, and between the contact points of the accumulator and the support base,
The compressor unit according to any one of claims 1 to 4. The accumulator is pressed against the support by a tension acting on the band;
The compressor unit according to any one of claims 1 to 5.

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