Compressors and refrigeration systems

Abstract

To reduce vibrations in the accumulator. [Solution] The compressor 100 comprises a cylindrical casing 30 housing a compression mechanism 10 and a motor unit 20, an accumulator support 40 attached to the outer peripheral surface 31a of the casing, and an accumulator 50 supported by the accumulator support. The accumulator support has a first arm 42 welded to the casing, extending from the casing toward the accumulator and connecting to the accumulator, a second arm 43 welded to the casing at a different position from the first arm, extending from the casing toward the accumulator and connecting to the accumulator, a base 41 connecting the first arm and the second arm and attached to the outer peripheral surface of the casing or accumulator, and a reinforcing portion having surfaces 61, 62 that spread in a direction intersecting the axial direction of the casing, connecting the base, the casing or accumulator to the first arm or the second arm.

Description

Technical Field

[0001] The present disclosure relates to a compressor and a refrigeration system.

Background Art

[0002] For example, as a bracket for a compressor, there is known one including a base portion, a pair of arm portions provided to incline outward from both end portions of the base portion, and a contact portion provided on the side of the arm portion opposite to the connection side with the base portion (see Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] For example, during the operation of a compressor, as a reaction force of the force for compressing the internal fluid, a force that rotates around the axis of the casing is generated. As a result, the accumulator support base attached to the casing may be interlocked, and the vibration of the accumulator may increase.

[0005] An object of the present disclosure is to provide a compressor and a refrigeration system capable of reducing the vibration of an accumulator.

Means for Solving the Problems

[0006] A compressor according to one aspect of the present disclosure comprises a cylindrical casing housing a compression mechanism and a motor section, an accumulator support attached to the outer circumferential surface of the casing, and an accumulator supported by the accumulator support, wherein the accumulator support includes a first arm welded to the casing, extending from the casing toward the accumulator and connecting to the accumulator, a second arm welded to the casing at a different position from the first arm, extending from the casing toward the accumulator and connecting to the accumulator, a base connecting the first arm and the second arm and attached to the outer circumferential surface of the casing or accumulator, and a reinforcing portion having a surface that extends in a direction intersecting the axial direction of the casing and connecting the base, the casing or accumulator and the first arm or the second arm.

[0007] The compressor in this embodiment includes a reinforcing section connected to the first or second arm, the reinforcing section having a surface that extends in a direction intersecting the axial direction of the casing. The reinforcing section is also connected to one of the base, casing, or accumulator. This reduces vibration of the first or second arm connected to the reinforcing section. As a result, vibration of the accumulator can be reduced.

[0008] In a compressor according to one aspect of the present disclosure, the surface on which the reinforcing portion extends includes a surface perpendicular to the axial direction of the casing.

[0009] In a compressor according to one aspect of this disclosure, the reinforcing portion is positioned between the first arm and the second arm, and the reinforcing portion has a notch formed on the side opposite to the base in the direction in which the first and second arms extend. By forming the notch close to the accumulator, collision between the reinforcing portion and the accumulator is avoided. Therefore, damage caused by collision between the reinforcing portion and the accumulator is prevented in the compressor. Note that "notch" refers to a recessed shape.

[0010] In a compressor according to one aspect of the present disclosure, the reinforcing portion may include a first reinforcing portion connecting the first arm portion and the base portion, and a second reinforcing portion connecting the second arm portion and the base portion. In a compressor with this structure, the first arm portion and the base portion can be connected by the first reinforcing portion, and the second arm portion and the base portion can be connected by the second reinforcing portion. According to the compressor of this aspect, vibrations of the first arm portion and the second arm portion can be reduced.

[0011] In one embodiment of the present disclosure, the base extends along the outer circumferential surface of the casing and is attached to the outer circumferential surface of the casing. The reinforcing portion may have a first reinforcing portion that extends from the first arm portion to the side opposite to the second arm portion and is connected to the casing, and a second reinforcing portion that extends from the second arm portion to the side opposite to the first arm portion and is connected to the casing. In a compressor with this structure, the first arm portion and the casing can be connected by the first reinforcing portion, and the second arm portion and the casing can be connected by the second reinforcing portion. According to the compressor of this embodiment, vibrations of the first arm portion and the second arm portion can be reduced.

[0012] In a compressor according to one aspect of this disclosure, the reinforcing portion may include a plate-like portion bent from the base, or a plate-like portion bent from the first arm or the second arm. The reinforcing portion may also include a plate-like portion formed by bending. In a compressor with this structure, the reinforcing portion can be easily processed.

[0013] A refrigeration system according to one aspect of this disclosure includes the above-mentioned compressor. [Brief explanation of the drawing]

[0014] [Figure 1] This is a side view showing a compressor according to the first embodiment. [Figure 2] This is a cross-sectional view showing the accumulator support base of a compressor according to the first embodiment. [Figure 3] This is a side view showing the accumulator support base. [Figure 4] This is a side view of the accumulator support base, taken from the X-axis direction. [Figure 5]It is a cross-sectional view showing an accumulator support base of a compressor according to a second embodiment. [Figure 6] It is a cross-sectional view showing an accumulator support base of a compressor according to a third embodiment. [Figure 7] It is a cross-sectional view showing an accumulator support base of a compressor according to a fourth embodiment. [Figure 8] It is a cross-sectional view showing an accumulator support base of a compressor according to a fifth embodiment. [Figure 9] It is a cross-sectional view showing an accumulator support base of a compressor according to a sixth embodiment. [Figure 10] It is a cross-sectional view showing an accumulator support base of a compressor according to a seventh embodiment. [Figure 11] It is a schematic view of a refrigeration system including a compressor according to an embodiment.

Modes for Carrying Out the Invention

[0015] Non-limiting examples of the present disclosure will be described while referring to the accompanying drawings. In the accompanying drawings, the same or corresponding members or components are given the same or corresponding reference numerals. Further, redundant descriptions of the same or corresponding members or components will be omitted below. Also, in the drawings, the members or components are not necessarily drawn to scale. Therefore, those skilled in the art can arbitrarily determine specific dimensions by referring to the following non-limiting examples. Further, the following examples are illustrative rather than limiting the invention. Also, the features described in the examples and their combinations are not necessarily essential to the invention.

[0016] [Compressor 100 According to the First Embodiment] FIG. 1 is a side view showing a compressor 100 according to the first embodiment. FIG. 2 is a cross-sectional view showing an accumulator support base 40 of the compressor 100 according to the first embodiment. In each figure, the X-axis direction, the Y-axis direction, and the Z-axis direction orthogonal to each other are illustrated. The Z-axis direction is along the axial direction of the cylindrical body 31. The Z-axis direction may be the vertical direction. The X-axis direction and the Y-axis direction are the radial directions of the cylindrical body 31. Note that the X-axis direction, the Y-axis direction, and the Z-axis direction do not necessarily have to be orthogonal to each other.

[0017] The compressor 100 is for compressing a low-pressure refrigerant in a refrigeration cycle to a high pressure, and includes a compressor main body 101, a cylindrical accumulator 50, and an accumulator support base 40 that is fixed to the compressor main body 101 and supports the accumulator 50 in a standing state.

[0018] The compressor main body 101 has a vertical cylindrical casing 30. The casing 30 houses a compression mechanism 10 and a motor unit 20. The casing 30 may be a fully sealed type. The casing 30 has a cylindrical body 31, a top 32, and a bottom 33.

[0019] The bottom 33 is the lower end plate of the casing 30 and covers the lower opening of the cylindrical body 31. The top 32 is the upper end plate of the casing 30 and covers the upper opening of the cylindrical body 31. The bottom 33 is welded to the lower end of the cylindrical body 31, and the top 32 is welded to the upper end of the cylindrical body 31.

[0020] An intake port 113 extending radially outward is provided at the lower side of the side surface of the casing 30. The intake port 113 communicates with the compression mechanism 10. A discharge pipe 114 is connected to the upper part of the casing 30. The discharge pipe 114 extends upward from the top 32.

[0021] The accumulator 50 is a vertical cylindrical container for separating the gas and liquid of low-pressure refrigerant and refrigeration oil drawn into the compressor body 101, and for temporary storage of these substances. The central axis C12 of the accumulator 50 may be parallel to the central axis C11 of the casing 30. The accumulator 50 is fixed to the outer surface of the casing 30 by an accumulator support base 40 and fastening bands 140. An outlet pipe 121 is provided at the lower end of the accumulator 50. The outlet pipe 121 extends downward from the lower end of the accumulator 50. The outlet pipe 121 is bent toward the intake port 113 of the compressor body 101 and connected to the intake port 113. An annular rubber buffer member 122 is wrapped around the outer surface of the cylindrical portion of the accumulator 50.

[0022] [Accumulator support stand 40] Figure 3 is a side view showing the accumulator support base 40. In Figure 3, the accumulator support base 40 is viewed in the Y-axis direction. Figure 4 is a side view showing the accumulator support base 40 from the X-axis direction. The accumulator support base 40 is a metal plate-like member welded to the side of the compressor body 101, that is, to the outer circumferential surface 31a of the cylindrical body 31 of the casing 30.

[0023] As shown in Figures 2 to 4, the accumulator support base 40 has a base 41 fixed to the casing 30, and arms 42 and 43 that are positioned apart in the circumferential direction of the cylindrical body 31 and extend radially outward (in the X-axis direction) from both ends of the base 41. These base 41, arms 42 and arms 43 may be integrally formed by press-forming a single sheet of material. Arm 42 is an example of a first arm, and arm 43 is an example of a second arm. Arms 42 and 43 are positioned at different locations in the circumferential direction of the cylindrical body 31.

[0024] The base portion 41 is a plate-like portion that extends along the outer circumferential surface 31a of the cylindrical body 31 of the casing 30 and is welded to the cylindrical body 31 of the casing 30. The thickness direction of the base portion 41 is aligned with the thickness direction of the cylindrical body 31. The base portion 41 is curved along the outer circumferential surface 31a of the cylindrical body 31.

[0025] The arm portion 42 has, in a plan view, a first extension portion 42a extending from one end of the base portion 41 toward the accumulator 50, and a first flange portion 42b folded back from the tip of the first extension portion 42a toward the cylindrical body 31. One end of the base portion 41 is one end of the base portion 41 in the direction along the circumferential direction of the cylindrical body 31, and the other end of the base portion 41 is the other end of the base portion 41 in the direction along the circumferential direction of the cylindrical body 31. The tip of the first extension portion 42a is the end furthest from the base portion 41. The end closer to the base portion 41 is called the base end.

[0026] The arm portion 43 has, in a plan view, a second extension portion 43a extending from the other end of the base portion 41 toward the accumulator 50, and a second flange portion 43b that is folded back from the tip of the second extension portion 43a toward the cylindrical body 31. The tip of the second extension portion 43a is the end furthest from the base portion 41. The end closer to the base portion 41 is called the base end.

[0027] The arms 42 and 43 may be welded to the outer circumferential surface 31a of the cylindrical body 31 of the casing 30, or they may be welded to the cylindrical body 31 via the base 41.

[0028] [Reinforcement section 60] The accumulator support base 40 has a reinforcing portion 60. The reinforcing portion 60 connects the base portion 41, the arm portion 42, and the arm portion 43. The reinforcing portion 60 is plate-shaped. The thickness direction of the reinforcing portion 60 is aligned with the Z-axis direction.

[0029] As shown in Figure 2, the reinforcing portion 60 has a rectangular shape when viewed in the plate thickness direction. The reinforcing portion 60 has sides 60a to 60d. Sides 60a and 60b are long sides extending in the Y-axis direction and are opposite each other in the X-axis direction. Side 60a is located closer to the base portion 41, and side 60b is located closer to the accumulator 50. Sides 60c and 60d are short sides extending in the X-axis direction and are opposite each other in the Y-axis direction. Side 60c is located closer to the arm portion 42, and side 60d is located closer to the arm portion 43.

[0030] The longitudinal center of side 60a is welded to the base 41. Side 60c is welded to the first extension 42a of arm 42. Side 60d is welded to the second extension 43a of arm 43.

[0031] The reinforcing portion 60 is connected to the arm portions 42 and 43 in the Y-axis direction. The reinforcing portion 60 has a predetermined width in the X-axis direction. The reinforcing portion 60 extends from the base portion 41 toward the accumulator 50 in the X-axis direction. The length of the reinforcing portion 60 in the Y-axis direction may be approximately the same as the length between the first extension portion 42a and the second extension portion 43a. The width of the reinforcing portion 60 in the X-axis direction may be approximately the same as the lengths of the first extension portion 42a and the second extension portion 43a. The reinforcing portion 60 has a width such that it does not come into contact with the accumulator 50.

[0032] As shown in Figures 3 and 4, the accumulator support base 40 may have a plurality of reinforcing parts 60. The plurality of reinforcing parts 60 are spaced apart in the Z-axis direction. The upper reinforcing parts 60 may be positioned above the base 41 and the arms 42, 43. The lower reinforcing parts 60 may be positioned below the base 41 and the arms 42, 43. The reinforcing parts 60 may be positioned to overlap with the base 41 and the arms 42, 43 in the Z-axis direction.

[0033] The accumulator support base 40 may include one reinforcing portion 60. The reinforcing portion 60 may be located only on the upper side of the base 41 and the arm portions 42, 43. The reinforcing portion 60 may be located only on the lower side of the base 41 and the arm portions 42, 43.

[0034] The thickness direction of the reinforcing portion 60 is aligned with the Z-axis direction, as described above. The reinforcing portion 60 has a first surface 61 and a second surface 62 that face each other in the Z-axis direction. The first surface 61 is the top surface, and the second surface 62 is the bottom surface. The first surface 61 and the second surface 62 are surfaces perpendicular to the Z-axis direction and are examples of surfaces that extend in a direction intersecting the axial direction of the casing 30. A "spreading surface" may be a surface having a predetermined area. The X-axis direction and the Y-axis direction are examples of directions that intersect the axial direction of 30. The first surface 61 and the second surface 62 include surfaces that intersect in the Z-axis direction. The first surface 61 and the second surface 62 may also include surfaces that are inclined with respect to the Z-axis direction.

[0035] [Issues of conventional compressors] Next, we will explain the problems with conventional compressors. For example, in vertically mounted rotary compressors and swing compressors, a rotational force is generated around the axis of the casing as a reaction to the force that compresses the internal fluid (e.g., refrigerant gas). "Vertically mounted" refers to a case where the axis of the casing is aligned vertically.

[0036] In such compressors, the accumulator vibrates in the circumferential direction of the casing. In particular, vibration and noise increase when resonance is excited that causes the arms of the accumulator support to bend in conjunction with each other.

[0037] For example, in conventional compressors, one measure is to increase the bending strength of the arms of the accumulator support by adding ribs to the arms. In this measure, the aim is to suppress vibration of the arms by diverting the resonant frequency away from the frequency band in which the compressive reaction force is dominant. However, as compressors rotate at higher speeds, this measure is not sufficient.

[0038] [Effects of the compressor 100 according to the first embodiment] The compressor 100 according to the first embodiment comprises a cylindrical casing 30 that houses the compression mechanism 10 and the motor unit 20, an accumulator support part 40 attached to the outer circumferential surface 31a of the casing 30, and an accumulator 50 supported by the accumulator support part 40. The accumulator support portion 40 includes an arm portion (first arm portion) 42 welded to the casing 30 and extending from the casing 30 toward the accumulator 50, connecting with the accumulator 50; an arm portion (second arm portion) 43 welded to the casing 30 at a different position from the arm portion 42 and extending from the casing 30 toward the accumulator 50, connecting with the accumulator 50; a base portion 41 connecting the arm portion 42 and the arm portion 43 and attached to the outer circumferential surface of the casing 30; and a reinforcing portion 60 having a first surface 61 and a second surface 62 that spread out in a direction intersecting the Z-axis direction (the axial direction of the casing 30), connecting the base portion 41, the casing 30, the arm portion 42, and the arm portion 43.

[0039] The compressor 100 in this embodiment includes a reinforcing section 60 connected to the arms 42 and 43, the reinforcing section 60 having a first surface 61 and a second surface 62 that extend in directions intersecting the Z-axis direction. The reinforcing section 60 is also connected to the base 41. This suppresses the deflection of the arms 42 and 43 connected to the reinforcing section 60, thereby reducing vibration of the arms 42 and 43. As a result, vibration of the accumulator 50 can be reduced.

[0040] During the operation of the compressor 100, a rotational force is generated around the central axis C11 of the casing 30 as a reaction to the force compressing the internal fluid. In the compressor 100 according to this embodiment, the base 41 and the pair of arms 42 and 43 are connected by the reinforcing part 60, thereby suppressing vibration of the pair of arms 42 and 43. In the compressor 100, vibration of the accumulator 50 during operation is suppressed, and noise generation is suppressed.

[0041] In this compressor 100, vibration and noise generation from the accumulator 50 during operation are suppressed, thus reducing the need for vibration countermeasures on the piping connected to the accumulator 50. Compared to conventional technology, the compressor 100 can reduce the installation range and amount of vibration countermeasures. As a result, the cost of products equipped with the compressor 100 can be reduced.

[0042] By incorporating a simple reinforcing section 60 into the compressor 100, the difficulty of structural design for vibration countermeasures can be reduced. This makes it possible to reduce the cost of products that include the compressor 100.

[0043] Furthermore, the compressor 100 can achieve higher operating speeds by reducing the vibration and noise of the accumulator 50 during operation.

[0044] In the compressor 100 according to this embodiment, the first surface 61 and the second surface 62, which are the surfaces on which the reinforcing portion 60 extends, may include surfaces perpendicular to the Z-axis direction. By including surfaces perpendicular to the Z-axis direction in the first surface 61 and the second surface 62, the rigidity of the reinforcing portion 60 can be increased, further reducing the vibration of the arm portions 42 and 43.

[0045] [Compressor 100 according to the second embodiment] Figure 5 is a cross-sectional view showing the accumulator support base 40 of the compressor 100 according to the second embodiment. The difference between the compressor 100 according to the second embodiment and the compressor 100 according to the first embodiment is that it is equipped with a reinforcing part 60B instead of the reinforcing part 60. In the description of the second embodiment, the same explanation as in the description of the first embodiment described above will be omitted.

[0046] [Reinforcement part 60B] The reinforcing section 60B has sides 60a-60c, 60e, and 60f. Sides 60e and 60f are inclined sides that slope in the X-axis and Y-axis directions. Sides 60e and 60f are positioned away from side 60a in the X-axis direction and closer to the accumulator 50 relative to side 60a. Side 60e extends from the end of side 60c toward side 60d and slopes toward side 60a. Side 60f extends from the end of side 60d toward side 60c and slopes toward side 60a. Sides 60e and 60f are connected to each other in the central part of the reinforcing section 60B in the Y-axis direction. Sides 60e and 60f are examples of notches 63. Sides 60e and 60f, which are notches 63, are formed to be recessed inward in the reinforcing section 60B. This allows a gap to be formed between the reinforcing portion 60B and the accumulator 50.

[0047] [Effects of the compressor 100 according to the second embodiment] The compressor 100 according to this second embodiment also provides the same effects as the compressor 100 according to the first embodiment. In the compressor 100 according to the second embodiment, the reinforcing portion 60B is positioned between the arm portion 42 and the arm portion 43, and the reinforcing portion 60B has a notch portion 63 formed on the side opposite to the base portion 41 in the X-axis direction (the direction in which the first arm portion and the second arm portion extend). Because the notch portion 63 is formed in a position close to the accumulator 50, collision between the reinforcing portion 60B and the accumulator 50 is avoided. Therefore, in the compressor 100, damage caused by collision between the reinforcing portion 60B and the accumulator 50 is prevented.

[0048] [Compressor 100 according to the third embodiment] Figure 6 is a cross-sectional view showing the accumulator support base 40 of the compressor 100 according to the third embodiment. The difference between the compressor 100 according to the third embodiment and the compressor 100 according to the first embodiment is that it is equipped with a reinforcing part 60C instead of the reinforcing part 60. In the description of the second embodiment, the same explanations as those given in the descriptions of the first and second embodiments above will be omitted.

[0049] [Reinforcement part 60C] The reinforcing portion 60C has sides 60a to 60c and 60g. Side 60g is positioned away from side 60a in the X-axis direction and closer to the accumulator 50 relative to side 60a. Side 60g has a curved shape that is recessed away from the accumulator 50 in the X-axis direction. Side 60g is an example of a notch 63B. Side 60g, which is a notch 63B, is formed to be recessed inward in the reinforcing portion 60C. This allows a gap to be formed between the reinforcing portion 60C and the accumulator 50.

[0050] [Effects of the compressor 100 according to the third embodiment] The compressor 100 according to this third embodiment also provides the same effects as the compressor 100 according to the first embodiment described above. In the compressor 100 according to the third embodiment, the reinforcing portion 60C is positioned between the arm portion 42 and the arm portion 43, and the reinforcing portion 60C has a notch 63B formed on the side opposite to the base portion 41 in the X-axis direction (the direction in which the first arm portion and the second arm portion extend). Because the notch 63B is formed in a position close to the accumulator 50, collision between the reinforcing portion 60C and the accumulator 50 is avoided. Therefore, in the compressor 100, damage caused by collision between the reinforcing portion 60C and the accumulator 50 is prevented.

[0051] [Compressor 100 according to the fourth embodiment] Figure 7 is a cross-sectional view showing the accumulator support base 40 of the compressor 100 according to the fourth embodiment. The difference between the compressor 100 according to the fourth embodiment and the compressor 100 according to the first embodiment is that it is equipped with a pair of reinforcing parts 60D and 60E instead of the reinforcing part 60. In the description of the fourth embodiment, the same explanations as those given in the first to third embodiments above will be omitted.

[0052] [Reinforcement sections 60D, 60E] The accumulator support base 40 is provided with a pair of reinforcing parts 60D and 60E. The reinforcing parts 60D and 60E form a triangle when viewed in the plate thickness direction. Reinforcing part 60D has sides 60h, 60c, and 60j. Side 60h extends in the Y-axis direction. Part of side 60h is welded to the base 41. Side 60j is a hypotenuse that slopes with respect to sides 60c and 60h. Reinforcing part 60E has sides 60i, 60d, and 60k. Side 60i extends in the Y-axis direction. Part of side 60i is welded to the base 41. Side 60k is a hypotenuse that slopes with respect to sides 60d and 60i.

[0053] [Effects of the compressor 100 according to the fourth embodiment] The compressor 100 according to this fourth embodiment also provides the same effects as the compressor 100 according to the first embodiment described above. In the compressor 100 according to the fourth embodiment, the reinforcing part includes a reinforcing part (first reinforcing part) 60D that connects the arm (first arm) 42 and the base 41, and a reinforcing part (second reinforcing part) 60E that connects the arm (second arm) 43 and the base 41. According to the compressor 100 of this embodiment, the vibration of the arm 42 can be reduced by the reinforcing part 60D, and the vibration of the arm 43 can be reduced by the reinforcing part 60E. The compressor 100 may be provided with a plurality of reinforcing parts 60D, 60E.

[0054] [Compressor 100 according to the fifth embodiment] Figure 8 is a cross-sectional view showing the accumulator support base 40 of the compressor 100 according to the fifth embodiment. The difference between the compressor 100 according to the fifth embodiment and the compressor 100 according to the first embodiment is that it is equipped with a pair of reinforcing parts 60F and 60G instead of the reinforcing part 60. In the description of the fifth embodiment, the same explanations as those given in the first to fourth embodiments above will be omitted.

[0055] [Reinforcement section 60F, 60G] The accumulator support base 40 is provided with a pair of reinforcing parts 60F and 60G. The reinforcing parts 60F and 60G form a substantially triangular shape when viewed in the plate thickness direction. Reinforcing part 60F has sides 60l, 60m, and 60n. Side 60l is curved along the outer circumferential surface 31a of the cylindrical body 31 and is welded to the cylindrical body 31. Side 60m extends in the X-axis direction and is welded to the first extension part 42a. Side 60n is a hypotenuse that is inclined with respect to sides 60l and 60m. Reinforcing part 60G has sides 60o, 60p, and 60q. Side 60o is curved along the outer circumferential surface 31a of the cylindrical body 31 and is welded to the cylindrical body 31. Side 60p extends in the X-axis direction and is welded to the second extension part 43a. Side 60q is a hypotenuse that is inclined with respect to sides 60o and 60p.

[0056] [Effects of the compressor 100 according to the fifth embodiment] In the compressor 100 according to the fifth embodiment, the base 41 extends along the outer circumferential surface 31a of the casing 30 and is attached to the outer circumferential surface 31a of the casing 30. The reinforcing portion includes a reinforcing portion (first reinforcing portion) 60F that extends from the arm portion (first arm portion) 42 to the side opposite to the arm portion (second arm portion) 43 and is connected to the casing 30, and a reinforcing portion (second reinforcing portion) 60G that extends from the arm portion 43 to the side opposite to the arm portion 42 and is connected to the casing 30. In the compressor 100 with this structure, the arm portion 42 and the casing 30 can be connected by the reinforcing portion 60F, and the arm portion 43 and the casing 30 can be connected by the reinforcing portion 60G. According to the compressor 100 of this embodiment, vibrations of the arm portions 42 and 43 can be reduced. As a result, vibrations of the accumulator 50 can be reduced. The compressor 100 may also be equipped with reinforcing portions 60F and 60G that extend in opposite directions from each other in the circumferential direction of the casing 30. The reinforcing parts 60F and 60G do not necessarily have to be positioned between the pair of arm parts 42 and 43. The reinforcing parts 60F and 60G may also connect the casing 30 to the arm parts 42 and 43. The reinforcing parts 60F and 60G may also be connected to parts other than the base part 41.

[0057] [Compressor 100 according to the sixth embodiment] Figure 9 is a cross-sectional view showing the accumulator support base 40 of the compressor 100 according to the sixth embodiment. The difference between the compressor 100 according to the sixth embodiment and the compressor 100 according to the first embodiment is that it is equipped with a reinforcing part 60H instead of the reinforcing part 60. In the description of the sixth embodiment, the same explanations as those given in the first to fifth embodiments above will be omitted.

[0058] [Reinforcement part 60H] The accumulator support base 40 is equipped with a reinforcing portion 60H, which has a first portion 64 and a second portion 65. The first portion 64 is plate-shaped and rectangular in plan view. The thickness direction of the first portion 64 is along the Z-axis direction. The first portion 64, like the reinforcing portion 60, has a first surface 61 and a second surface 62 that face each other in the Z-axis direction. The first portion 64 extends in the Y-axis direction and is welded to the arm portions 42 and 43.

[0059] The second portion 65 is formed by bending from the base portion 41. The thickness direction of the second portion 65 is along the Z-axis direction. The second portion 65 extends from the base portion 41 toward the accumulator 50 in the X-axis direction. The tip of the second portion 65 is positioned to overlap the first portion 64 in the Z-axis direction. The second portion 65 is welded to the first portion 64. A pair of arms 42 and 43 are connected to the base portion 41 via the first member 64 and the second member 65.

[0060] The compressor 100 according to this sixth embodiment also provides the same effects as the compressor 100 according to the first embodiment described above. The reinforcing portion 60H may include a plurality of members (first portion 64 and second portion 65). The reinforcing portion 60H may include a second portion (plate-shaped portion) 65 bent from the base portion 41. In the compressor 100 with this structure, processing can be easily carried out by bending the second portion 65 of the reinforcing portion 60H.

[0061] [Compressor 100 with modified image] In the modified compressor 100, the reinforcing portion 60H may include a first portion (plate-like portion) 64 bent from an arm (first arm) 42 or an arm (second arm) 43. The first portion 64 may be bent from the arm 42. In this case, the end of the first portion 64 closer to the arm 43 is welded to the arm 43. The first portion 64 may be bent from the arm 43. In this case, the end of the first portion 64 closer to the arm 42 is welded to the arm 42. The first portion 64 may include a plurality of plate-like portions, including portions bent from the arm 42 and portions bent from the arm 43. The plurality of plate-like portions may be directly welded together or connected via other members (for example, a second portion 65).

[0062] Furthermore, the reinforcing portion 60 may include a plate-like portion bent from the base portion 41, a plate-like portion bent from the arm portion 42, or a plate-like portion bent from the arm portion 43. For example, the reinforcing portion 60 shown in Figure 2 may be bent from the base portion 41. For example, the reinforcing portion 60D shown in Figure 7 may be bent from the arm portion 42, and the reinforcing portion 60E may be bent from the arm portion 43. For example, the reinforcing portion 60F shown in Figure 8 may be bent from the arm portion 42, and the reinforcing portion 60G may be bent from the arm portion 43.

[0063] [Compressor 100 according to the seventh embodiment] Figure 10 is a cross-sectional view showing the accumulator support base 40 of the compressor 100 according to the seventh embodiment. The difference between the compressor 100 according to the seventh embodiment and the compressor 100 according to the first embodiment is that the base 41 is attached to the accumulator 50, and the first flange portion 42b of the arm portion 42 and the second flange portion 43b of the arm portion 43 are attached to the outer peripheral surface 31a of the casing 30.

[0064] The base portion 41 may be attached to the accumulator 50 in this manner, and the first flange portion 42b and the second flange portion 43b may be attached to the casing 30. The base portion 41 may be welded to the outer circumferential surface of the accumulator 50. The arm portion 42 may be welded to the accumulator 50. The arm portion 43 may be welded to the accumulator 50. The first flange portion 42b of the arm portion 42 may be welded to the outer circumferential surface 31a of the casing 30. The second flange portion 43b of the arm portion 43 may be welded to the outer circumferential surface 31a of the casing 30.

[0065] Similarly, in an accumulator support base 40 equipped with the above-mentioned reinforcing portions 60B to 60G, the base portion 41 may be attached to the accumulator 50, and the first flange portion 42b and the second flange portion 43b may be attached to the casing 30.

[0066] [Refrigeration system according to an embodiment] Next, a refrigeration system 300 equipped with a compressor 100 will be described. Figure 11 is a schematic diagram of a refrigeration system 300 equipped with a compressor 100 according to this embodiment. The refrigeration system 300 is equipped with the compressor 100 described above. In the description of the refrigeration system according to this embodiment, explanations similar to those of the above embodiment will be omitted.

[0067] The refrigeration system 300 shown in Figure 11 is used, for example, in air conditioning systems, refrigeration equipment, and refrigerator equipment. The refrigeration system 300 may also be used in other equipment. The refrigeration system 300 performs a refrigeration cycle. The refrigeration cycle of the refrigeration system 300 is a vapor compression refrigeration cycle. The refrigeration system 300 comprises a compressor 100, a condenser 320, an expansion valve 330, and an evaporator 340. The refrigeration system 300 is also called a chiller.

[0068] The refrigerant, which is the working fluid of the refrigeration system 300, is not particularly limited. The compressor 100 compresses the refrigerant gas. The condenser 320 condenses the refrigerant gas compressed by the compressor 100. The expansion valve 330 expands the refrigerant condensed by the condenser 320. The evaporator 340 evaporates the refrigerant expanded by the expansion valve 330. The refrigerant gas evaporated in the evaporator 340 is drawn into the compressor 100.

[0069] The compressor 100 reversibly adiabatically compresses the refrigerant gas. The refrigerant gas supplied to the condenser 320 liquefies by releasing heat at a constant pressure. The liquefied refrigerant irreversibly expands at a constant enthalpy in the expansion valve 330, causing a portion of the refrigerant to evaporate. The refrigerant absorbs heat at a constant pressure in the evaporator 340.

[0070] The refrigeration system 300 is equipped with piping L301 to L304 through which the refrigerant flows. Piping L301 is an intake pipe connecting the evaporator 340 and the compressor 100. Piping L302 connects the compressor 100 and the condenser 320. Piping L303 connects the condenser 320 and the expansion valve 330. Piping L304 connects the expansion valve 330 and the evaporator 340.

[0071] The refrigerant gas flows through piping L301 and is drawn into the compressor 100. The refrigerant gas compressed in the compressor 100 flows through piping L302 and is supplied to the condenser 320. The refrigerant liquid liquefied in the condenser 320 flows through piping L303 and flows into the expansion valve 330. The refrigerant expanded in the expansion valve 330 flows through piping L304 and is supplied to the evaporator 340. The refrigerant gas that has absorbed heat in the evaporator 340 flows through piping L301 and is supplied to the compressor 100.

[0072] In such a refrigeration system 300, the compressor 100 according to the above embodiment can be applied.

[0073] Preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described above. Various modifications, substitutions, etc., can be applied to the embodiments described above without departing from the scope of the present invention. Furthermore, features described separately can be combined as long as no technical inconsistencies arise.

[0074] In the above embodiment, a case in which a plate-shaped reinforcing portion 60 is provided is described, but the reinforcing portion 60 is not limited to being plate-shaped. The reinforcing portion 60 may include, for example, an L-shaped steel member. The reinforcing portion 60 only needs to have a surface that intersects the central axis C11 of the casing 30.

[0075] Furthermore, although the above embodiment describes a vertically oriented compressor 100 in which the central axis C11 extends in the vertical direction, the compressor 100 may also be a horizontally oriented compressor 100 in which the central axis C11 extends in the horizontal direction.

[0076] The compressor 100 may be, for example, a rotary compressor. The rotary compressor may be a rolling piston type rotary compressor. The compressor 100 may be a swing compressor. The compressor 100 may be a hinge vane type compressor. The compressor 100 may be any other type of compressor, for example, a turbo compressor.

[0077] The compressor 100 may be equipped only with a reinforcing part 60 connecting the arm (first arm) 42 and the base 41. The compressor 100 may be equipped only with a reinforcing part 60 connecting the arm (second arm) 43 and the base 41. The compressor 100 may be equipped only with a reinforcing part 60 connecting the arm 42 and the casing 30. The compressor 100 may be equipped only with a reinforcing part 60 connecting the arm 43 and the casing 30.

[0078] One aspect of the present invention may be as follows:

[0079] <1> A cylindrical casing (30) housing the compression mechanism (10) and the motor section (20), An accumulator support portion (40) attached to the outer circumferential surface (31a) of the casing, The system comprises an accumulator (50) supported by the accumulator support portion, The accumulator support portion is A first arm portion (42) is welded to the casing, extends from the casing toward the accumulator, and connects to the accumulator, A second arm (43) is welded to the casing at a different position from the first arm, extends from the casing toward the accumulator, and connects to the accumulator, A base (41) that connects the first arm and the second arm and is attached to the outer surface of the casing or the accumulator, The reinforcing portion has surfaces (61, 62) that extend in a direction intersecting the axial direction (Z) of the casing, and connects the base, the casing, or the accumulator to the first arm or the second arm, A compressor having a compressor. <2> The surface on which the reinforcing portion extends includes the surface perpendicular to the axial direction of the casing, as described above. <1> The compressor described above. <3> The reinforcing portion (60B) is positioned between the first arm portion and the second arm portion. The reinforcing portion has a notch (63) formed on the side opposite to the base in the direction in which the first arm and the second arm extend. <1> or <2> The compressor described above. <4> The aforementioned reinforcing portion is A first reinforcing part (60D) connecting the first arm and the base, The above-mentioned, having a second reinforcing part (60E) connecting the second arm and the base. <1> or <2> The compressor described above. <5> The base extends along the outer circumferential surface of the casing and is attached to the outer circumferential surface of the casing. The aforementioned reinforcing portion is A first reinforcing portion extends from the first arm portion to the side opposite to the second arm portion and is connected to the casing, The above-mentioned second reinforcing portion having a second reinforcing portion that extends from the second arm portion toward the opposite side from the first arm portion and is connected to the casing, <1> or <2> The compressor described above. <6> The aforementioned reinforcing portion is The above includes a plate-like portion (65) bent from the base, or a plate-like portion (64) bent from the first arm or the second arm. <1> ~ <5> The compressor listed in any one of the following. <7> The above <1> ~ <6> A refrigeration system equipped with a compressor as described in any one of the following. [Explanation of symbols]

[0080] 100 Compressors 10 Compression mechanism 20 Motor section 30 Casing 31 Cylindrical body 31a Outer surface 40. Accumulator support base (accumulator support part) 41 Base 42 Arm (1st arm) 43 Arm (2nd arm) 50 Accumulators 60,60B,60C Reinforcement part 60D Reinforcement section (First reinforcement section) 60E Reinforcement section (Second reinforcement section) 60F Reinforcement Section (First Reinforcement Section) 60G reinforcement section (second reinforcement section) 60H Reinforcement part 61 Page 1 62 2nd page 63 Notch 300 Refrigeration System

Claims

1. A cylindrical casing (30) housing the compression mechanism (10) and the motor unit (20), An accumulator support portion (40) attached to the outer circumferential surface (31a) of the casing, The system comprises an accumulator (50) supported by the accumulator support portion, The accumulator support portion is A first arm portion (42) is welded to the casing, extends from the casing toward the accumulator, and connects to the accumulator, A second arm (43) is welded to the casing at a different position from the first arm, extends from the casing toward the accumulator, and connects to the accumulator. A base (41) that connects the first arm and the second arm and is attached to the outer surface of the casing or the accumulator, The reinforcing portion has surfaces (61, 62) that extend in a direction intersecting the axial direction (Z) of the casing, and connects the base, the casing, or the accumulator to the first arm or the second arm, A compressor having a compressor.

2. The compressor according to claim 1, wherein the surface on which the reinforcing portion extends includes a surface perpendicular to the axial direction of the casing.

3. The reinforcing portion (60B) is positioned between the first arm portion and the second arm portion. The compressor according to claim 2, wherein the reinforcing portion has a notch (63) formed on the side opposite to the base portion in the direction in which the first arm portion and the second arm portion extend.

4. The aforementioned reinforcing portion is A first reinforcing part (60D) connecting the first arm and the base, The compressor according to claim 2, further comprising a second reinforcing portion (60E) connecting the second arm portion and the base portion.

5. The base extends along the outer circumferential surface of the casing and is attached to the outer circumferential surface of the casing. The aforementioned reinforcing portion is A first reinforcing portion extends from the first arm portion to the side opposite to the second arm portion and is connected to the casing, The compressor according to claim 2, further comprising: a second reinforcing portion extending from the second arm portion to the side opposite to the first arm portion and connected to the casing.

6. The aforementioned reinforcing portion is A compressor according to any one of claims 2 to 5, comprising a plate-like portion (65) bent from the base, or a plate-like portion (64) bent from the first arm or the second arm.

7. A refrigeration system (300) comprising a compressor according to any one of claims 1 to 5.

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