JP2018035712A - Compressor unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compressor unit which can inhibit sound noise caused by vibration of a compressor.SOLUTION: A compressor unit 100 includes a refrigerant compression device 110, a frame 120, and a vibration inhibition member 130. The refrigerant compression device 110 comprises: a compressor 101 for compressing a refrigerant; and an accumulator 103 fixed to a side surface of the compressor 101. The frame 120 is a member onto which the refrigerant compression device 110 is placed. The vibration inhibition member 130 is a member which is fixed to the frame 120 and used to inhibit vibration of the refrigerant compression device 110 in a predetermined direction. The vibration inhibition member 130 fixes at least one of an outer surface of the refrigerant compression device 110 and a refrigerant pipeline connected with the refrigerant compression device 110. The predetermined direction is a direction orthogonal to a straight line passing through a center of the compressor 101 and a center of the accumulator 103 when the refrigerant compression device 110 is viewed along a vertical direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a compressor unit for fixing a compressor.

  Conventionally, as disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 2001-317479), a compressor unit including a compressor and an accumulator has been used. The compressor includes a compression mechanism that compresses the refrigerant and a motor that drives the compression mechanism. The accumulator is fixed to the side surface of the compressor, temporarily stores the refrigerant before being supplied to the compressor, and prevents liquid refrigerant from being supplied to the compressor. The compressor is connected to the accumulator via a connection pipe. The low-pressure refrigerant before being compressed is first supplied to the accumulator, then flows through the connecting pipe, is supplied to the compressor, is compressed by the compressor, and is discharged.

  In the rotary compressor, the compression mechanism includes a piston housed in a cylindrical cylinder chamber. As the piston revolves in the cylinder chamber in synchronization with the rotation of the rotor of the motor, the refrigerant supplied to the cylinder chamber is compressed. In a compressor unit including a rotary compressor, a rigid body composed of a compressor and an accumulator causes vibration called a 1-fold vibration by using a torque fluctuation when the piston of the compression mechanism makes one rotation as an excitation force. The direction of 1-fold vibration is a direction orthogonal to a straight line connecting the center of the compressor and the center of the accumulator when the compressor unit is viewed from above. The 1 × vibration causes noise generated during operation of the compressor.

  The objective of this invention is providing the compressor unit which can suppress the noise by the vibration of a compressor.

  A compressor unit according to a first aspect of the present invention includes a refrigerant compressor, a gantry, and a vibration suppressing member. The refrigerant compressor includes a compressor for compressing a refrigerant and an accumulator fixed to a side surface of the compressor. The gantry is a member on which the refrigerant compression device is mounted and fixed. The vibration suppressing member is a member that is fixed to the gantry and suppresses vibration of the refrigerant compressor in a predetermined direction. The vibration suppressing member fixes at least one of the outer surface of the refrigerant compressor and the refrigerant pipe connected to the refrigerant compressor. The predetermined direction is a direction orthogonal to a straight line passing through the center of the compressor and the center of the accumulator when the refrigerant compressor is viewed along the vertical direction.

  In this compressor unit, at least one of the refrigerant compressor and the refrigerant pipe is fixed by a vibration suppressing member. The vibration suppressing member suppresses 1 × vibration, which is vibration in a predetermined direction of the refrigerant compression device, which occurs during operation of the compressor. The 1 × vibration causes noise generated during operation of the compressor. Therefore, this compressor unit can suppress noise due to the vibration of the compressor.

  A compressor unit according to a second aspect of the present invention is the compressor unit according to the first aspect, wherein the refrigerant pipe is connected to the compressor, the discharge pipe through which the refrigerant compressed by the compressor flows, and the accumulator It is a suction pipe through which a refrigerant that is connected and supplied to the compressor flows. Further, the vibration suppressing member fixes at least the refrigerant pipe.

  In this compressor unit, the vibration suppressing member fixes the discharge pipe and the suction pipe of the refrigerant compressor. Since the discharge pipe and the suction pipe are pipes extending from the refrigerant compression device, the vibration suppressing member does not need to directly fix the refrigerant compression device. Therefore, the vibration suppressing member can be installed at a position away from the refrigerant compressor. Therefore, the compressor unit can be easily attached with the vibration suppressing member.

  A compressor unit according to a third aspect of the present invention is the compressor unit according to the second aspect, wherein the refrigerant pipe has a predetermined direction fixing portion extending along a predetermined direction, and the vibration suppressing member is in a predetermined direction. Fix the fixing part.

  In this compressor unit, the vibration suppressing member fixes a portion that is a part of the refrigerant pipe and extends along the direction of the 1-fold vibration of the refrigerant compression device. Therefore, this compressor unit can suppress the 1 time vibration of a refrigerant compressor effectively by fixing refrigerant piping.

  The compressor unit which concerns on the 4th viewpoint of this invention is a compressor unit which concerns on a 2nd viewpoint or a 3rd viewpoint, Comprising: Refrigerant piping is extended from the side surface of a compressor, and the side surface of an accumulator.

  In this compressor unit, the refrigerant pipe extends from the side surface of the compressor and the side surface of the accumulator. When such a refrigerant pipe has a portion extending along the direction of the 1-fold vibration of the refrigerant compressor, it is 1 time by the vibration suppressing member as compared with the refrigerant pipe extending from the upper end surface of the compressor. Greater vibration suppression effect. Therefore, this compressor unit can suppress the 1 time vibration of a refrigerant compressor effectively by fixing refrigerant piping.

  A compressor unit according to a fifth aspect of the present invention is the compressor unit according to any one of the second to fourth aspects, and the vibration suppressing member is fixed to the fixing member. The fixing member is attached to an elastic member attached to the outer surface of the refrigerant pipe.

  In this compressor unit, the vibration suppressing member is attached to the refrigerant pipe via an elastic member. Therefore, this compressor unit can suppress the 1 time vibration of a refrigerant compressor effectively by fixing refrigerant piping.

  The compressor unit which concerns on a 1st viewpoint can suppress the noise by the vibration of a compressor.

  In the compressor unit according to the second aspect, the vibration suppressing member can be easily attached.

  The compressor unit which concerns on a 3rd viewpoint thru | or a 5th viewpoint can suppress the 1 time vibration of a refrigerant | coolant compression apparatus effectively by fixing refrigerant | coolant piping.

It is a perspective view of compressor unit 100 of an embodiment. 2 is a top view of the compressor unit 100. FIG. It is a longitudinal cross-sectional view of the refrigerant compressor 110. 4 is a perspective view of a vibration suppressing member 130. FIG. 4 is a cross-sectional view of a tube fixing member 132 of a vibration suppressing member 130 that fixes a discharge tube 20. FIG. It is a top view of the refrigerant compressor 110 of the conventional compressor unit, and is a figure for demonstrating 1 time vibration of the refrigerant compressor 110. FIG. 10 is a perspective view of a compressor unit that is an example of Modification B. FIG. 10 is a perspective view of a compressor unit that is an example of Modification B. FIG.

  A compressor unit 100 according to an embodiment of the present invention will be described with reference to the drawings. The compressor unit 100 constitutes a refrigerant circuit together with an indoor heat exchanger, an outdoor heat exchanger, and the like as a part of an air conditioner that is a kind of refrigeration apparatus.

  FIG. 1 is a perspective view of the compressor unit 100. FIG. 2 is a top view of the compressor unit 100. The compressor unit 100 mainly includes a refrigerant compressor 110, a pedestal 120, and a vibration suppressing member 130.

  The refrigerant compressor 110 mainly includes a compressor 101 for compressing the refrigerant, and an accumulator 103 that is fixed to a side surface of the compressor 101. FIG. 3 is a longitudinal sectional view of the refrigerant compressor 110.

  Next, each component of the compressor unit 100 will be described.

(1) Configuration of Compressor The compressor 101 is a one-cylinder type rotary compressor. The rotary compressor 101 mainly includes a casing 10, a compression mechanism 15, a drive motor 16, a crankshaft 17, an inlet pipe 19, and a discharge pipe 20.

(1-1) Casing The casing 10 includes a cylindrical body portion 11, a bowl-shaped top portion 12, and a bowl-shaped bottom portion 13. The top portion 12 is connected to the upper end portion of the body portion 11 in an airtight manner. The bottom 13 is connected to the lower end of the body 11 in an airtight manner.

  The casing 10 is formed of a rigid member that is unlikely to be deformed or damaged due to changes in pressure and temperature in the internal space and the external space of the casing 10. The casing 10 is installed so that the cylindrical axial direction of the trunk portion 11 is along the vertical direction. The lower part of the internal space of the casing 10 is an oil storage part 10a in which lubricating oil is stored. The lubricating oil is a refrigerating machine oil used for improving the lubricity of the sliding portion existing in the internal space of the casing 10.

  The casing 10 mainly accommodates a compression mechanism 15, a drive motor 16, and a crankshaft 17. The compression mechanism 15 is connected to the drive motor 16 via the crankshaft 17. The casing 10 is connected to the joint pipe 19 and the discharge pipe 20 in an airtight manner by welding or the like. A plurality of support legs (not shown) for fixing the compressor 101 on the gantry 120 are attached to the lower end of the body portion 11.

(1-2) Compression Mechanism The compression mechanism 15 compresses the low-pressure refrigerant flowing through the refrigerant circuit and discharges it into the high-pressure space S1 inside the casing 10. The compression mechanism 15 is immersed in the lubricating oil stored in the oil storage unit 10a. The lubricating oil in the oil reservoir 10a is supplied to the sliding portion of the compression mechanism 15 by differential pressure or the like.

  The compression mechanism 15 mainly includes a piston 21, a front head 23, a cylinder 24, and a rear head 25. The cylinder 24 has a cylinder chamber 24a that is a cylindrical space. The upper opening of the cylinder chamber 24 a is blocked by the front head 23. The lower opening of the cylinder chamber 24 a is closed by the rear head 25. The front head 23, the cylinder 24, and the rear head 25 are integrally fastened by bolts. The cylinder chamber 24 a is connected to the inlet pipe 19. The low-pressure refrigerant before being compressed flows through the inlet pipe 19 and is supplied to the cylinder chamber 24a.

  The piston 21 is disposed in the cylinder chamber 24a. The piston 21 is connected to the crankshaft 17. When the crankshaft 17 rotates, the piston 21 in the cylinder chamber 24 a revolves while contacting the inner peripheral surface of the cylinder 24. Due to the revolving motion of the piston 21, the volume of the cylinder chamber 24 a partitioned by the piston 21 is periodically increased or decreased. Thereby, the refrigerant in the cylinder chamber 24a is compressed. The refrigerant compressed in the cylinder chamber 24a is discharged into the high-pressure space S1 through the discharge port 23b formed in the front head 23.

  A discharge valve 23 c that closes the discharge port 23 b is attached to the upper surface of the front head 23. The discharge valve 23c is a valve for preventing the reverse flow of the refrigerant from the high-pressure space S1 to the cylinder chamber 24a. The discharge valve 23c is lifted upward by an increase in the refrigerant pressure inside the discharge port 23b. Thus, the discharge port 23b communicates with the high pressure space S1.

(1-3) Drive Motor The drive motor 16 is a brushless DC motor housed in the casing 10 and installed above the compression mechanism 15. The drive motor 16 mainly includes a stator 51 that is fixed to the inner wall surface of the casing 10 and a rotor 52 that is rotatably accommodated by providing an air gap inside the stator 51.

  The stator 51 includes a stator core 61 and a pair of insulators 62 attached to both end surfaces of the stator core 61 in the vertical direction. Stator core 61 has a cylindrical portion and a plurality of teeth (not shown) protruding radially inward from the inner peripheral surface of the cylindrical portion. A conductive wire is wound around the teeth of the stator core 61 together with the pair of insulators 62. Thus, a coil 72 a is formed on each tooth of the stator core 61.

  The outer surface of the stator 51 is provided with a plurality of core cut portions (not shown) that are notched from the upper end surface to the lower end surface of the stator 51 and at a predetermined interval in the circumferential direction. . The core cut portion forms a motor cooling passage extending in the vertical direction between the body portion 11 of the casing 10 and the stator 51. The refrigerant discharged from the compression mechanism 15 to the high-pressure space S1 flows upward through the motor cooling passage, and is then discharged from the discharge pipe 20 to the outside of the casing 10.

  The rotor 52 is composed of a plurality of metal plates stacked in the vertical direction. The rotor 52 is connected to the compression mechanism 15 via the crankshaft 17. The crankshaft 17 penetrates the rotation center of the rotor 52 in the vertical direction.

(1-4) Crankshaft The crankshaft 17 is arrange | positioned so that the axial direction may follow a perpendicular direction. The crankshaft 17 is connected to the rotor 52 of the drive motor 16 and the piston 21 of the compression mechanism 15. The crankshaft 17 has an eccentric shaft portion 17a. The eccentric shaft portion 17 a is connected to the piston 21 disposed in the cylinder hole 24 a of the cylinder 24. The upper end of the crankshaft 17 is connected to the rotor 52 of the drive motor 16.

(1-5) Inlet pipe The inlet pipe 19 is a pipe that penetrates the body 11 of the casing 10 in the horizontal direction. An end portion of the inlet pipe 19 inside the casing 10 is fitted into a suction hole (not shown) of the cylinder 24. The suction hole of the cylinder 24 communicates with the cylinder chamber 24a. The end of the inlet pipe 19 outside the casing 10 is connected to the outlet pipe 54 of the accumulator 103. The inlet pipe 19 is a pipe for supplying a refrigerant to the cylinder chamber 24 a of the compression mechanism 15. In the outer space of the casing 10, the inlet pipe 19 has a portion extending along the Y-axis direction described later.

(1-6) Discharge Pipe The discharge pipe 20 is a pipe that penetrates the top 12 of the casing 10 in the horizontal direction. An end portion of the discharge pipe 20 inside the casing 10 is located in a space above the drive motor 16. The end of the discharge pipe 20 outside the casing 10 is connected to the refrigerant circuit. The discharge pipe 20 is a pipe for supplying the refrigerant compressed by the compression mechanism 15 to the refrigerant circuit.

(2) Configuration of Accumulator The accumulator 103 has a main body including a bowl-shaped upper casing 111, a cylindrical middle casing 112, and a bowl-shaped lower casing 113. The main body of the accumulator 103 is fixed to the casing 10 of the compressor 101. Specifically, the middle housing 112 of the accumulator 103 is fixed to the trunk portion 11 of the casing 10 via the connecting member 115. The connecting member 115 includes, for example, an attachment band wound around the outer peripheral surface of the middle housing 112 and a bracket. A suction pipe 53 is attached to the upper casing 111 in an airtight manner by welding or the like. An outlet pipe 54 is attached to the lower housing 113 in an airtight manner by welding or the like.

  The suction pipe 53 is a pipe that penetrates the upper housing 111 in the horizontal direction. As shown in FIG. 3, the suction pipe 53 is bent in an L shape in the internal space of the accumulator 103. An end portion of the suction pipe 53 inside the accumulator 103 is opened downward in the vertical direction. An end of the suction pipe 53 outside the accumulator 103 is connected to the refrigerant circuit. In the external space of the accumulator 103, the suction pipe 53 has a portion extending along the Y-axis direction to be described later.

  The outlet pipe 54 is a pipe that penetrates the lower housing 113 in the vertical direction. The end of the outlet pipe 54 inside the accumulator 103 is open upward in the vertical direction. The end of the outlet pipe 54 outside the accumulator 103 is connected to the inlet pipe 19 of the compressor 101.

  A thin metal plate called a baffle 114 is installed in the internal space of the accumulator 103. The central part of the baffle 114 is convex upward in the vertical direction. The baffle 114 is attached to the inner surface of the accumulator 103 main body.

  The accumulator 103 separates the gas-liquid two-phase refrigerant flowing into the main body through the suction pipe 53 into a gas refrigerant and a liquid refrigerant. The gas-liquid two-phase refrigerant that has flowed into the main body collides with the baffle 114. The liquid refrigerant contained in the gas-liquid two-phase refrigerant adheres to the surface of the baffle 114. The liquid refrigerant adhering to the baffle 114 flows on the surface of the baffle 114 toward the outer edge, falls in the internal space, and is stored in the bottom of the main body. On the other hand, the gas refrigerant contained in the gas-liquid two-phase refrigerant flows into the outlet pipe 54 from the internal space. The gas refrigerant flows through the outlet pipe 54 and flows into the inlet pipe 19 of the compressor 101. Thereby, the accumulator 103 prevents the liquid refrigerant from being sucked into the compression mechanism 15 of the compressor 101.

  The refrigerant compressor 110 takes in the low-pressure refrigerant from the refrigerant circuit via the suction pipe 53 of the accumulator 103 and supplies the compressed refrigerant to the refrigerant circuit via the discharge pipe 20 of the compressor 101.

(3) Configuration of gantry The gantry 120 is a substantially rectangular parallelepiped member that is installed on a horizontal floor and in which the refrigerant compression device 110 is accommodated. The gantry 120 corresponds to the casing of the compressor unit 100. The gantry 120 mainly includes a bottom plate 121 and side plates 123. The bottom plate 121 is a substantially rectangular metal plate placed on a horizontal floor. The bottom plate 121 is installed so as to be parallel to the horizontal plane. The side plate 123 is connected to the bottom plate 121 at the end of the bottom plate 121. The side plate 123 is a substantially rectangular metal plate that stands vertically with respect to the horizontal plane. In FIG. 1, only two side plates 123 are shown. The upper end of the side plate 123 is connected to a top plate (not shown) that is a metal plate facing the bottom plate 121.

  1 and 2 show arrows representing the X-axis direction, the Y-axis direction, and the Z-axis direction. The X-axis direction is a direction in the horizontal plane that connects the center 101 c of the compressor 101 and the center 103 c of the accumulator 103. The Y-axis direction is a direction in the horizontal plane that is orthogonal to the X-axis direction. The Z-axis direction is a direction perpendicular to the X-axis direction and the Y-axis direction, and is a vertical direction.

  The center 101c of the compressor 101 is a point that becomes the center of the circular trunk portion 11 when the compressor 101 is viewed along the vertical direction. The center 103c of the accumulator 103 is a point that becomes the center of the circular middle housing 112 when the accumulator 103 is viewed along the vertical direction. When the refrigerant compressor 110 is viewed along the vertical direction, the connecting member 115 is located on a line segment connecting the center 101 c of the compressor 101 and the center 103 c of the accumulator 103.

(4) Configuration of Vibration Suppressing Member The vibration suppressing member 130 is a member that is fixed to the gantry 120 and that suppresses vibration of the refrigerant compression device 110 in a predetermined direction (1 × vibration described later). The vibration suppressing member 130 fixes the suction pipe 53 of the accumulator 103 and the discharge pipe 20 of the compressor 101.

  FIG. 4 is a perspective view of the vibration suppressing member 130. The vibration suppressing member 130 mainly includes a bottom plate fixing member 131, a tube fixing member 132, and a support member 133. The bottom plate fixing member 131, the tube fixing member 132, and the support member 133 are each formed of a highly rigid material such as metal and are connected to each other by welding or the like. The bottom plate fixing member 131 is fixed to the bottom plate 121 by a bolt 130a. The tube fixing member 132 is erected so as to be perpendicular to the bottom plate 121. The support member 133 is a member for supporting the tube fixing member 132.

  As shown in FIGS. 1, 2, and 4, the bottom plate fixing member 131 is a rectangular plate having a long side along the Y axis and a short side along the X axis. The tube fixing member 132 is a plate connected to one long side of the bottom plate fixing member 131 and parallel to the YZ plane. The support member 133 is a right triangular plate connected to the short side of the bottom plate fixing member 131 and the side of the tube fixing member 132 in the Z-axis direction.

  The vibration suppressing member 130 fixes the suction pipe 53 and the discharge pipe 20. Specifically, the suction pipe 53 and the discharge pipe 20 are fixed to one main surface of the pipe fixing member 132 via a rubber sheet 134 and a pipe fixing bracket 135, respectively. The main surface to which the suction pipe 53 and the discharge pipe 20 are fixed is the main surface on the side where the support member 133 does not exist. The rubber sheet 134 is an elastic member that is wound around the outer peripheral surfaces of the suction pipe 53 and the discharge pipe 20. The tube fixing bracket 135 is a metal member that is wound around the outer side of the rubber sheet 134. The tube fixing bracket 135 is fixed to the tube fixing member 132 by welding or the like.

  FIG. 5 is a cross-sectional view of the tube fixing member 132 of the vibration suppressing member 130 that fixes the discharge tube 20 extending in the Y-axis direction. FIG. 5 is a view taken along the XZ plane orthogonal to the Y-axis direction in which the discharge pipe 20 extends. As shown in FIG. 5, the rubber sheet 134 is wound around the outer peripheral surface of the discharge pipe 20, and the pipe fixing bracket 135 clamps the rubber sheet 134 with a bolt 135 a. A part of the outer peripheral surface of the tube fixing fitting 135 is welded to the main surface 132a of the tube fixing member 132 at the welded portion 135b. The pipe fixing member 132 that fixes the suction pipe 53 also has the same configuration as in FIG.

(5) Features of Compressor Unit The refrigerant compressor 110 can be regarded as a rigid body including the compressor 101 and the accumulator 103. During operation of the compressor 101, the piston 21 of the compression mechanism 15 revolves in the cylinder chamber 24a by the rotation of the crankshaft 17. In the cylinder chamber 24a, the steps of refrigerant suction, compression, and discharge are repeated. Since the pressure in the cylinder chamber 24a is different in each step, the stress that the piston 21 receives from the refrigerant in the cylinder chamber 24a changes during the revolution of the piston 21. Therefore, during the operation of the compressor 101, the torque of the piston 21 varies periodically. In a conventional compressor unit that does not include the vibration suppressing member 130, the refrigerant compressor 110 causes vibration called 1-fold vibration using the torque fluctuation as an excitation force. The 1-fold vibration of the refrigerant compressor 110 is transmitted to the suction pipe 53 of the accumulator 103 and the discharge pipe 20 of the compressor 101.

  FIG. 6 is a top view of the refrigerant compression device 110 of the conventional compressor unit that does not include the vibration suppressing member 130, and is a diagram for explaining the 1 × vibration of the refrigerant compression device 110. FIG. 6 shows the same X, Y, and Z axis directions as in FIGS. 1 and 2. FIG. 6 shows the center 101 c of the compressor 101, the center 103 c of the accumulator 103, and the center of gravity 110 c of the refrigerant compressor 110, and the direction of the single vibration, which is the vibration of the compressor 101 and the accumulator 103, is a thick line arrow. It is shown in As shown in FIG. 6, the direction of the 1 × vibration of the refrigerant compressor 110 is substantially parallel to the Y-axis direction. The 1-fold vibration of the refrigerant compressor 110 causes noise generated during the operation of the compressor 15.

  On the other hand, in the compressor unit 100 of the present embodiment, the suction pipe 53 of the accumulator 103 and the discharge pipe 20 of the compressor 101 extend along the Y-axis direction, which is the direction of 1-fold vibration of the refrigerant compressor 110. At the portion, the frame 120 is fixed to the gantry 120 via the vibration suppressing member 130. Therefore, the support rigidity of the refrigerant compressor 110 in the direction of the 1 × vibration (Y-axis direction) is increased by the vibration suppressing member 130. That is, the vibration suppressing member 130 reduces the 1-fold vibration of the refrigerant compressor 110. Therefore, the compressor unit 101 can suppress the noise of the compressor 15 due to the vibration of the refrigerant compressor 110.

  Further, the vibration suppressing member 130 fixes the suction pipe 53 and the discharge pipe 20 of the refrigerant compression device 110. That is, the vibration suppressing member 130 does not need to directly fix the casing 10 of the compressor 15 and the main body of the accumulator 103. Therefore, the vibration suppressing member 130 can be installed at a position away from the casing 10 of the compressor 15 and the main body of the accumulator 103. Therefore, the compressor unit 101 can easily attach the vibration suppressing member 130 to a wide space on the bottom plate 121 of the gantry 120.

  In the compressor unit 101, the suction pipe 53 and the discharge pipe 20 are attached to the vibration suppression member 130 via a rubber sheet 134 that is an elastic member. The rubber sheet 134 absorbs vibrations of the suction pipe 53 and the discharge pipe 20. Therefore, the compressor unit 101 can effectively reduce the 1-fold vibration of the refrigerant compressor 110.

(6) Modification (6-1) Modification A
In the embodiment, the suction pipe 53 and the discharge pipe 20 are fixed to the gantry 120 via the vibration suppression member 130 in order to suppress the 1 × vibration of the refrigerant compressor 110. In this case, the suction pipe 53 of the accumulator 103 and the discharge pipe 20 of the compressor 101 have a predetermined direction fixing portion that is a portion extending in the Y-axis direction, which is the direction of the 1 × vibration, and suppress vibrations. The member 130 only needs to fix the suction pipe 53 and the discharge pipe 20 in a predetermined direction.

  In FIG. 1 and FIG. 2, the suction pipe 53 extending from the main body of the accumulator 103 and the discharge pipe 20 extending from the casing 10 of the compressor 101 extend along the Y-axis direction to a predetermined location. That is, the vibration suppressing member 130 fixes a part of the suction pipe 53 and the discharge pipe 20 that extends along the direction of the 1-fold vibration of the refrigerant compressor 110 (Y-axis direction). Thereby, the compressor unit 100 can effectively suppress the 1 × vibration of the refrigerant compressor 110.

  As shown in FIG. 3, the discharge pipe 20 preferably extends from the side surface of the casing 10 of the compressor 15, and the suction pipe 53 extends from the side surface of the upper housing 111 of the accumulator 103. Furthermore, it is more preferable that the discharge pipe 20 extends in the Y-axis direction from the side surface of the casing 10 of the compressor 15, and the suction pipe 53 extends in the Y-axis direction from the side surface of the upper housing 111 of the accumulator 103. In this case, for example, compared to the case where the suction pipe 53 extends from the upper end surface of the upper housing 111 and curves in the external space of the accumulator 103 body and extends in the Y-axis direction, the vibration suppressing member 130 suppresses the 1 × vibration. Becomes larger.

(6-2) Modification B
In the embodiment, the vibration suppressing member 130 fixes the suction pipe 53 and the discharge pipe 20. However, the vibration suppressing member 130 may fix only one of the suction pipe 53 and the discharge pipe 20.

  Further, the vibration suppressing member 130 may fix at least one of the casing 10 of the compressor 101 and the main body of the accumulator 103 instead of fixing the suction pipe 53 and the discharge pipe 20. Further, the vibration suppressing member 130 may fix at least one of the suction pipe 53 and the discharge pipe 20 and may fix at least one of the casing 10 of the compressor 101 and the main body of the accumulator 103.

  7 and 8 are perspective views of a compressor unit 200 that is an example of the present modification. The compressor unit 200 includes a compressor 201, an accumulator 203, and a vibration suppressing member 230. The accumulator 203 is fixed to the side surface of the compressor 201. The compressor 201 includes a discharge pipe 220 that extends upward from the upper end surface of the casing 210. Three casing support portions 210a are attached to the lower portion of the outer peripheral surface of the cylindrical casing 210 of the compressor 201 at equal intervals along the circumferential direction. The casing support part 210a is fixed to a frame (not shown) of the compressor unit 200. Two of the three casing support portions 210a are arranged along the X-axis direction. The accumulator 203 has a suction pipe 253 extending upward from the upper end surface of the cylindrical main body. The vibration suppressing member 230 fixes the casing 210 of the compressor 201.

  The vibration suppressing member 230 mainly includes three support columns 231a, 231b, and 231c, three beams 232a, 232b, and 232c, a first casing support member 233, and a second casing support member 234. The lower ends of the three columns 231a, 231b, and 231c are fixed to different casing support portions 210a. The three beams 232a, 232b, and 232c connect the upper ends of two of the three columns 231a, 231b, and 231c. Specifically, the beam 232a is connected to the columns 231b and 231c, the beam 232b is connected to the columns 231a and 231c, and the beam 232c is connected to the columns 231a and 231b.

  When the compressor 201 is viewed along the vertical direction, the three beams 232a, 232b, and 232c form an equilateral triangle, and one of the beams 232a is along the X-axis direction. The first casing support member 233 is attached to the two columns 231b and 231c connected to the beam 232a along the X-axis direction. The first casing support member 233 is in contact with the outer surface of the casing 210 and supports the casing 210. The second casing support member 234 is attached to a single column 231a to which the first casing support member 233 is not attached. The second casing support member 234 contacts the outer surface of the casing 210 and supports the casing 210 on the opposite side of the first casing support member 233.

  The first casing support member 233 is fixed to the two support columns 231b and 231c, and has a relatively large area in contact with the outer surface of the casing 210. On the other hand, the second casing support member 234 is fixed to only one column 231 c, and the area in contact with the outer surface of the casing 210 is smaller than that of the first casing support member 233. However, the vibration suppressing member 230 is configured such that the first casing support member 233 and the second casing support member 234 cause the casing 210 of the compressor 201 to move in the Y-axis direction, which is the direction of 1-fold vibration of a rigid body composed of the compressor 201 and the accumulator 203. It is sandwiched along the direction. Therefore, even though the casing 210 is supported only by the three columns 231a, 231b, and 231c, the vibration suppressing member 230 effectively causes the vibration of the compressor 201 and the accumulator 203 (single vibration). Reduced. Therefore, the vibration suppressing member 230 has an effect of effectively reducing the 1-fold vibration of the rigid body including the compressor 201 and the accumulator 203 while suppressing the number of components constituting the vibration suppressing member 230.

  The first casing support member 233 and the second casing support member 234 may be fixed to the outer surface of the casing 210 by welding or the like.

(6-3) Modification C
In the embodiment, the compressor 101 is a one-cylinder type rotary compressor. However, the compressor 101 may be a two-cylinder type rotary compressor or a scroll compressor.

  The compressor unit which concerns on this invention can suppress the noise by the vibration of a compressor.

20 Discharge Pipe 53 Suction Pipe 100 Compressor Unit 101 Compressor 103 Accumulator 110 Refrigerant Compressor 120 Base 130 Vibration Suppression Member 134 Rubber Sheet (Elastic Member)
135 Pipe fixing bracket (fixing member)

JP 2001-317479 A

Claims (5)

A refrigerant compressor (110) comprising a compressor (101) for compressing a refrigerant, and an accumulator (103) fixed to a side surface of the compressor;
A stand (120) on which the refrigerant compression device is mounted and fixed;
A vibration suppressing member (130) fixed to the gantry and for suppressing vibration of the refrigerant compressor in a predetermined direction;
With
The vibration suppressing member fixes at least one of an outer surface of the refrigerant compressor and a refrigerant pipe connected to the refrigerant compressor,
The predetermined direction is a direction orthogonal to a straight line passing through the center of the compressor and the center of the accumulator when the refrigerant compressor is viewed along a vertical direction.
Compressor unit (100). The refrigerant pipe includes a discharge pipe (20) through which refrigerant compressed by the compressor flows and a suction pipe (53) through which refrigerant supplied to the compressor flows and connected to the accumulator. Yes,
The vibration suppressing member fixes at least the refrigerant pipe;
The compressor unit according to claim 1. The refrigerant pipe has a predetermined direction fixing portion extending along the predetermined direction,
The vibration suppressing member fixes the predetermined direction fixing portion;
The compressor unit according to claim 2. The refrigerant pipe extends from a side surface of the compressor and a side surface of the accumulator.
The compressor unit according to claim 2 or 3. The vibration suppressing member is fixed to a fixing member (135) attached to an elastic member (134) attached to the outer surface of the refrigerant pipe.
The compressor unit according to any one of claims 2 to 4.

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