sealed compressor

Abstract

To enhance heat insulating property between a base member supporting an accumulator container and the accumulator container.SOLUTION: A hermetic compressor includes a vertical type cylindrical compressor body container in which a discharge pipe and a suction pipe for refrigerant are provided, the accumulator container connected to the suction pipe, a compression part arranged in the compressor body container for compressing the refrigerant sucked from the accumulator container via the suction pipe and discharging it from the discharge pipe, and a motor arranged in the compressor body container for driving the compression part. The hermetic compressor further includes an accumulator container having a cup-shaped accumulator shell joined at its opening side to the compressor body container, the base member supporting the accumulator container, an elastic body supporting the base member, and a heat insulating part provided on the counter opening side of the accumulator shell for interrupting the heat conduction between the accumulator shell and the base member.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a hermetic compressor that compresses and conveys a refrigerant in a refrigerator or an air conditioner using a refrigeration cycle.

Background Art

[0002] As a hermetic compressor, a compression part and a motor for driving the compression part are housed inside a vertical cylindrical compressor main body container, and below the compressor main body container, the refrigerant is separated into a gaseous refrigerant and a liquid refrigerant (hereinafter referred to as gas-liquid separation of the refrigerant), and an accumulator container for sucking only the gaseous refrigerant into the compression part is provided.

[0003] In the compressor of Patent Document 1, the compression part is a rotary compressor, and an accumulator container for separating the gas-liquid of the refrigerant sucked into the compression part is composed of a container independent of the compressor main body container, and is arranged below the compressor main body container, and the compressor main body container and the accumulator container are connected using a bracket. In the compressor of Patent Document 2, the compression part is a scroll compressor, and an accumulator container is directly joined to the lower part of a compressor main body container that houses the compression part and a motor for driving the compression part. In the compressor of Patent Document 3, the inside of a sealed container is partitioned by a pressure partition wall, the upper part of the pressure partition wall is used as a compressor main body container in which the compression part and the motor are housed, and the lower part of the pressure partition wall is used as an accumulator container.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0005] As described in the aforementioned Patent Documents 1, 2, and 3, in a compressor in which an accumulator container is joined to the bottom of the compressor body container, a structure is being considered in which the accumulator container is directly welded to the compressor body container in order to reduce the manufacturing cost of the compressor, prevent refrigerant leakage from the compressor body container to the accumulator container, and realize a highly reliable sealed compressor. In such a structure, in order to absorb and suppress the vibration of the compressor, a base member is attached to the bottom of the accumulator container, and an elastic body provided on the base member is placed on the installation site, thereby supporting the accumulator container and the compressor body container with the base member and the elastic body.

[0006] However, in this structure, when the compressor is running, the accumulator container becomes cold due to the internal gaseous refrigerant, and the base member attached to the accumulator shell of the accumulator container may freeze. When this happens, the elastic body cools down as the base member freezes, causing it to deteriorate and lose elasticity. As a result, the elastic body, with its reduced elasticity, can no longer adequately absorb the vibrations of the compressor and suppress them.

[0007] The disclosed technology has been made in view of the above, and aims to provide a sealed compressor that can improve the thermal insulation between the base member supporting the accumulator container and the accumulator container. [Means for solving the problem]

[0008] One embodiment of a sealed compressor disclosed in this application comprises: a vertically oriented cylindrical compressor body container provided with a refrigerant discharge pipe and an intake pipe; an accumulator container connected to the intake pipe; a compression unit disposed within the compressor body container for compressing the refrigerant drawn in from the accumulator container via the intake pipe and discharging it through the discharge pipe; and a motor disposed within the compressor body container for driving the compression unit, wherein the accumulator container has a cup-shaped accumulator shell with its opening joined to the compressor body container; a base member supporting the accumulator container; an elastic body supporting the base member; and a component provided on the side opposite to the opening of the accumulator shell (referred to as the anti-opening side) to block heat conduction between the accumulator shell and the base member. , closed It comprises an insulated section having an internal space. [Effects of the Invention]

[0009] According to one embodiment of the sealed compressor disclosed in this application, the thermal insulation between the base member supporting the accumulator container and the accumulator container can be improved. [Brief explanation of the drawing]

[0010] [Figure 1] Figure 1 is a longitudinal cross-sectional view showing a rotary compressor according to an embodiment. [Figure 2] Figure 2 is an exploded perspective view showing the compression section of the rotary compressor in the embodiment. [Figure 3] Figure 3 is a side view showing the accumulator container of the rotary compressor in the embodiment. [Figure 4] Figure 4 is a longitudinal cross-sectional view showing the main part of Modified Example 1. [Figure 5] Figure 5 is a longitudinal cross-sectional view showing the main parts of the modified example 2. [Modes for carrying out the invention]

[0011] The following describes in detail, with reference to the drawings, an embodiment of the sealed compressor disclosed in this application. However, the following embodiment does not limit the sealed compressor disclosed in this application.

Example

[0012] (Configuration of Rotary Compressor) In this example, as an example of a hermetic compressor, a rotary compressor will be described. FIG. 1 is a longitudinal sectional view showing the rotary compressor of the example. FIG. 2 is an exploded perspective view showing the compression part of the rotary compressor of the example.

[0013] As shown in FIG. 1, the rotary compressor 1 includes a compression part 12 that sucks refrigerant from the compression part suction pipe 102 inside the compressor main body container 10 and discharges the compressed refrigerant into the compressor main body container 10, and a motor 11 that drives the compression part 12. It is an internal high-pressure type hermetic compressor that discharges the high-pressure refrigerant compressed by the compression part 12 into the compressor main body container 10 and further discharges it into the refrigeration cycle through the discharge pipe 107.

[0014] The compressor main body container 10 has a vertical cylindrical main shell 10a, a cup-shaped top shell 10b, and a cup-shaped bottom shell 10c. The opening side 10g of the top shell 10b is welded and fixed to the upper end of the main shell 10a by a first welding part V, and the opening side 10d of the bottom shell 10c is welded and fixed to the lower end of the main shell 10a by a second welding part W.

[0015] A compression part suction pipe 102 for sucking the low-pressure refrigerant of the refrigeration cycle into the compression part 12 is provided through the main shell 10a. Specifically, a guide pipe 101 is brazed and fixed to the main shell 10a, and the compression part suction pipe 102 is brazed and fixed to the guide pipe 101 through the inside of the guide pipe 101.

[0016] A discharge pipe 107 for discharging the high-pressure refrigerant compressed by the compression part 12 from the inside of the compressor main body container 10 into the refrigeration cycle is provided through the top shell 10b. The discharge pipe 107 is directly brazed and fixed to the top shell 10b.

[0017] Below the compressor main body container 10, an accumulator container 25 is provided for separating the gas-liquid of the low-pressure refrigerant sucked from the refrigeration cycle and allowing only the gaseous refrigerant to be sucked into the compression part 12. Specifically, at a position below the second welding part W of the main shell 10a and the bottom shell 10c in the compressor main body container 10, the opening side 26a of the accumulator shell 26 is welded and fixed to the anti-opening side 10e of the bottom shell 10c with a third welding part X, and the inside of the accumulator shell 26 is sealed, thereby forming the accumulator container 25.

[0018] In the accumulator shell 26, an accumulator suction pipe 27 for sucking the refrigerant from the refrigeration cycle into the inside of the accumulator container 25 and a gas-liquid separation pipe 31 for sending the gaseous refrigerant from the inside of the accumulator are respectively brazed and fixed to the accumulator shell 26 through the accumulator shell 26.

[0019] The gas-liquid separation pipe 31 is connected to the compression part suction pipe 102 via the suction pipe 104 outside the accumulator container 25.

[0020] At the lower part of the accumulator shell 26, a base member 310 for supporting the entire rotary compressor 1 is welded and fixed.

[0021] The compression part 12 has a cylinder 121, an upper end plate 160T, a lower end plate 160S, and a rotating shaft 15. The upper end plate 160T, the cylinder 121, and the lower end plate 160S are stacked in order and fixed by a plurality of bolts 175. A main bearing part 161T is provided on the upper end plate 160T. A sub-bearing part 16 IS is provided on the lower end plate 160S. A main shaft part 153, an eccentric part 152, and a sub-shaft part 151 are provided on the rotating shaft 15. The main shaft part 153 of the rotating shaft 15 fits into the main bearing part 161T of the upper end plate 160T, and the sub-shaft part 151 of the rotating shaft 15 fits into the sub-bearing part 161S of the lower end plate 160S, whereby the rotating shaft 15 is supported rotatably.

[0022] The motor 11 has an externally positioned stator 111 and an internally positioned rotor 112. The stator 111 is shrink-fitted to the inner circumferential surface of the main shell 10a. The rotor 112 is shrink-fitted to the rotating shaft 15.

[0023] The compressor body container 10 is filled with enough lubricating oil 18 to almost completely immerse the compression section 12, for the purpose of lubricating the sliding members of the compression section 12 and sealing the high-pressure and low-pressure sections within the compression chamber.

[0024] Next, the compression section 12 will be explained in detail with reference to Figure 2. The cylinder 121 has a cylindrical hollow section 130 inside, and a piston 125 is positioned in the hollow section 130. The piston 125 is fitted into the eccentric section 152 of the rotating shaft 15. The cylinder 121 has a groove that extends outward from the hollow section 130, and a vane 127 is positioned in the groove. The cylinder 121 has a spring hole 124 that connects from the outer circumference to the groove, and a spring 126 is positioned in the spring hole 124. One end of the vane 127 is pressed against the piston 125 by the spring 126, so that the space outside the piston 125 in the hollow section 130 of the cylinder 121 is divided into an intake chamber 133 and a discharge chamber 131. The cylinder 121 has an intake hole 135 that communicates with the intake chamber 133 from the outer circumference. The compression intake pipe 102 is connected to the intake hole 135. The upper end plate 160T is provided with a discharge hole 190 that penetrates the upper end plate 160T and communicates with the discharge chamber 131. A discharge valve 200 that opens and closes the discharge hole 190 and a discharge valve retainer 201 that restricts the warping of the discharge valve 200 are fixed to the upper end plate 160T by rivets 202. An upper end plate cover 170 is positioned above the upper end plate 160T, covering the discharge hole 190, and the upper end plate 160T and the upper end plate cover 170 form an upper end plate cover chamber 180 that is closed off. The upper end plate cover 170 is fixed to the upper end plate 160T by a plurality of bolts 175 that fix the upper end plate 160T and the cylinder 121. The upper end plate cover 170 is provided with an upper end plate cover discharge hole 172 that communicates the upper end plate cover chamber 180 with the inside of the compressor body container 10.

[0025] The following describes the flow of the suction refrigerant due to the rotation of the rotating shaft 15. As the rotating shaft 15 rotates, the piston 125 fitted to the eccentric portion 152 of the rotating shaft 15 revolves, causing the intake chamber 133 to expand in volume and draw in refrigerant. As a refrigerant intake path, the low-pressure refrigerant from the refrigeration cycle is drawn into the accumulator container 25 through the accumulator intake pipe 27. If liquid is mixed with the refrigerant drawn into the accumulator container 25, it remains at the bottom of the accumulator container 25, and only gaseous refrigerant is drawn into the gas-liquid separation pipe 31 which opens at the top inside the accumulator container 25. The gaseous refrigerant drawn into the gas-liquid separation pipe 31 is then drawn into the intake chamber 133 through the intake pipe 104 and the compression section intake pipe 102. If the amount of liquid refrigerant drawn from the refrigeration cycle is large, the liquid level of the liquid refrigerant inside the accumulator container 25 may rise above the opening end 31b of the gas-liquid separation pipe 31, potentially causing a large amount of liquid refrigerant to flow into the gas-liquid separation pipe 31. If a large amount of liquid refrigerant flows into the compression section 12 through the gas-liquid separation pipe 31, it can damage the compression section 12. To prevent a large amount of liquid refrigerant from flowing into the gas-liquid separation pipe 31, the gas-liquid separation pipe 31 is provided with a liquid return hole 34 to draw in small amounts of liquid refrigerant.

[0026] Next, we will explain the flow of the discharged refrigerant due to the rotation of the rotating shaft 15. As the rotating shaft 15 rotates, the piston 125 fitted to the eccentric portion 152 of the rotating shaft 15 revolves, compressing the refrigerant while reducing the volume of the discharge chamber 131. When the pressure of the compressed refrigerant becomes higher than the pressure in the upper end plate cover chamber 180 outside the discharge valve 200, the discharge valve 200 opens and discharges the refrigerant from the discharge chamber 131 into the upper end plate cover chamber 180. The refrigerant discharged into the upper end plate cover chamber 180 is then discharged into the compressor body container 10 through the upper end plate cover discharge hole 172 provided in the upper end plate cover 170.

[0027] The refrigerant discharged into the compressor body container 10 is guided to the top of the motor 11 through a notch (not shown) connecting the top and bottom on the outer circumference of the stator 111, or a gap (not shown) in the winding section of the stator 111, or a gap 115 (see Figure 1) between the stator 111 and the rotor 112, and is discharged into the refrigeration cycle from a discharge pipe 107 provided on the top shell 10b.

[0028] Next, we will explain the flow of the lubricating oil 18. Lubricating oil 18 sealed in the lower part of the compressor body container 10 is supplied to the compression section 12 by the centrifugal force of the rotating shaft, passing through the inside of the rotating shaft (not shown). The lubricating oil 18 supplied to the compression section 12 is drawn into the refrigerant, atomized, and discharged into the compressor body container 10 together with the refrigerant. The lubricating oil 18 discharged into the compressor body container 10 as an atomized substance is separated from the refrigerant by centrifugal force due to the rotational force of the motor 11, and returns to the lower part of the compressor body container 10 as oil droplets. However, some of the lubricating oil 18 is not separated and is discharged into the refrigeration cycle together with the refrigerant. The lubricating oil 18 discharged into the refrigeration cycle circulates through the refrigeration cycle and returns to the accumulator container 25, where it is separated and remains in the lower part of the accumulator container 25. The lubricating oil 18 remaining in the lower part of the accumulator container 25 flows in small amounts into the gas-liquid separation pipe 31 through the liquid return hole 34 together with the liquid refrigerant, and is drawn into the intake chamber 133 together with the intake refrigerant.

[0029] (Characteristic configuration of a rotary compressor) Next, the features of the rotary compressor 1 of this embodiment will be described. Features of this embodiment include the fact that, as shown in Figure 1, a heat insulating section 35 is provided on the non-opening side 26b of the accumulator shell 26, opposite to the opening side 26a.

[0030] (Structure of the insulation section) Figure 3 is a side view showing the accumulator container 25 of the rotary compressor 1 of the embodiment. As shown in Figures 1 and 3, the accumulator shell 26 is provided with an insulating section 35 on the side 26b opposite the opening, which has a hollow internal space 35a that blocks heat conduction between the accumulator shell 26 and the base member 310.

[0031] The heat insulating section 35 has a cup-shaped hollow shell 38, and the open side 38a of the hollow shell 38 is joined to the accumulator shell 26 by a fourth weld Y. The internal space 35a of the heat insulating section 35 is formed within the hollow shell 38 by the fact that the open side 38a of the hollow shell 38 is closed by the non-open side 26b of the accumulator shell 26. In other words, the heat insulating section 35 is provided so as to be sandwiched between the non-open side 26b of the accumulator shell 26 and the base member 310, and the internal space 35a of the heat insulating section 35 is provided facing the entire non-open side 26b of the accumulator shell 26. In this way, the heat insulating section 35 can be easily formed with a simple structure by the hollow shell 38 at a position adjacent to the outside of the non-open side 26b of the accumulator shell 26.

[0032] The fourth weld Y between the opening side 38a of the hollow shell 38 and the accumulator shell 26 is formed, for example, over the circumferential direction of the accumulator shell 26. Note that the heat insulating portion 35 does not need to have its internal space 35a sealed by the fourth weld Y, and therefore the fourth weld Y does not need to be formed continuously over the circumferential direction of the accumulator shell 26. Furthermore, because the fourth weld Y between the opening side 38a of the hollow shell 38 and the accumulator shell 26 is not formed continuously over the circumferential direction of the accumulator shell 26, the void in the area where the fourth weld Y is not formed functions as a heat insulating space that blocks heat conduction between the accumulator shell 26 and the hollow shell 38, further suppressing the cooling of the base member 310 by the gas coolant inside the accumulator shell 26. Therefore, the cooling of the elastic body 311 by the base member 310 and the resulting decrease in elasticity are further suppressed.

[0033] Although not shown in the diagram, the insulation section 35 may be provided with vents that penetrate the hollow shell 38. By providing vents, outside air from around the hollow shell 38 can be drawn into the internal space 35a through the vents, and the air in the internal space 35a can be discharged through the vents. Therefore, even if the air in the internal space 35a of the insulation section 35 is cooled by the gaseous refrigerant in the accumulator shell 26, the internal space 35a of the insulation section 35 is ventilated through the vents, so the decrease in the insulation performance of the insulation section 35 is suppressed. Thus, the insulation performance of the insulation section 35 can be properly maintained. The insulation section 35 may be provided with multiple vents that penetrate the hollow shell 38. In this case, air drawn into the internal space 35a from one vent can be smoothly discharged from the other vents.

[0034] Furthermore, the hollow shell 38 may have a cylindrical main shell and a mortar-shaped bottom shell that closes the opening at the lower end of the main shell, and the bottom shell may be formed by joining the main shell by welding. Similarly, the accumulator shell 26 may also have a cylindrical main shell and a mortar-shaped bottom shell that closes the opening at the lower end of the main shell, and the bottom shell may be formed by joining the main shell by welding.

[0035] (Effects of the example) As described above, the rotary compressor 1 of the embodiment includes a base member 310 that supports the accumulator container 25, an elastic body 311 that supports the base member 310, and a heat insulating part 35 provided on the non-opening side 26b of the accumulator shell 26 to block heat conduction between the accumulator shell 26 and the base member 310. This improves the heat insulating performance between the accumulator container 25 and the base member 310. Therefore, even though the accumulator shell 26 is supported by the base member 310, the heat insulating part 35 prevents the base member 310 from being cooled by the gaseous coolant inside the accumulator shell 26, thus preventing the base member 310 from freezing. Consequently, the elasticity of the elastic body 311 provided on the base member 310 is suppressed, and the vibrations of the rotary compressor 1 are absorbed by the elastic body 311, allowing the vibrations to be properly suppressed.

[0036] Furthermore, in the rotary compressor 1 of this embodiment, the opening side 26a of the accumulator shell 26 is joined to the bottom shell 10c of the compressor body container 10. This allows for easy application by utilizing the existing compressor body container 10 and inserting the bottom shell 10c of the compressor body container 10 into the opening side 26a of the accumulator shell 26. It also eliminates the need for mounting bands and other mounting members to attach the accumulator container 25 to the compressor body container 10, thereby reducing the increase in manufacturing costs. In addition, compared to a structure in which the accumulator shell 26 is indirectly connected to the bottom shell 10c of the compressor body container 10 via a separate component, it avoids the generation of noise and vibration caused by the natural frequencies of the separate component.

[0037] Furthermore, in the accumulator container 25 of the rotary compressor 1 of the embodiment, the opening side 38a of the cup-shaped hollow shell 38 is joined to the non-opening side 26b of the accumulator shell 26, and the heat insulating portion 35 is the internal space 35a formed within the hollow shell 38. As a result, the heat insulating portion 35 can be easily formed with a simple structure by the hollow shell 38 at a position adjacent to the outside of the non-opening side 26b of the accumulator shell 26.

[0038] The following describes two modified examples 1 and 2 with reference to the drawings. In modified examples 1 and 2, components identical to those in the embodiment are denoted by the same reference numerals as in the embodiment, and their descriptions are omitted.

[0039] (Variation 1) Modification 1 differs from the embodiment in the structure of the heat insulating section 35. Figure 4 is a longitudinal cross-sectional view showing the main part of Modification 1.

[0040] As shown in Figure 4, the thermal insulation section 35 in the rotary compressor 2 of the modified example 1 has a partition member 48 that partitions the inside of the accumulator shell 26 instead of the hollow shell 38 described above, and an internal space 35a of the thermal insulation section 35 is formed between the partition member 48 and the non-opening side 26b of the accumulator shell 26. The outer peripheral portion 48a of the partition member 48 is joined to the inner peripheral surface of the accumulator shell 26 by a fourth weld Y.

[0041] The internal space 35a of the heat insulating section 35 is formed within the hollow shell 38 when the opening side 38a of the hollow shell 38 is closed by the non-opening side 26b of the accumulator shell 26. The internal space 35a of the heat insulating section 35 is provided opposite the entire non-opening side 26b of the accumulator shell 26. In this way, the heat insulating section 35 can be easily formed with a simple structure using the hollow shell 38, in a position adjacent to the inside of the non-opening side 26b of the accumulator shell 26.

[0042] The fourth weld Y between the outer periphery 48a of the partition member 48 and the inner circumferential surface of the accumulator shell 26 is formed over the circumferential direction of the accumulator shell 26. Therefore, the introduction space into which the refrigerant is introduced within the accumulator shell 26 is sealed and formed by the accumulator shell 26, the bottom shell 10c of the compressor body container 10, and the partition member 28. In addition, the internal space 35a of the heat insulating section 35 is formed by the non-opening side 26b of the accumulator shell 26 and the partition member 28. The outer periphery 28a of the partition member 28 is not limited to a shape that curves upward toward the accumulator shell 26, but may also curve downward toward the accumulator shell 26.

[0043] In the modified example 1, the partition member 48 forms a heat insulating section 35 within the accumulator shell 26, which prevents the base member 310 from being cooled by the gaseous refrigerant within the accumulator shell 26. As a result, freezing of the base member 310 is suppressed. Consequently, the elasticity of the elastic body 311 provided on the base member 310 is suppressed, and the elastic body 311 absorbs vibrations of the rotary compressor 1, thereby properly suppressing vibrations.

[0044] Furthermore, in the modified example 1, the outer peripheral portion 48a of the partition member 48 is joined to the inner peripheral surface of the accumulator shell 26, so that the partition member 48 can easily form a heat insulating portion 35 having a hollow internal space 35a in a simple structure at a position adjacent to the non-opening side 26b inside the accumulator shell 26.

[0045] (Modification 2) Modification 2 differs from the embodiment and modification 1 in that the heat insulating section 35 has a heat insulating material. Figure 5 is a longitudinal cross-sectional view showing the main part of modification 2.

[0046] As shown in Figure 5, in the rotary compressor 3 of the modified example 2, the heat insulating section 35 is provided with an insulating material 36 in the internal space 35a. As the insulating material 36, for example, foamed insulating material such as polystyrene foam or glass wool can be used. The heat insulating section 35 in which the insulating material 36 is provided is not limited to a structure in which the insulating material 36 fills the entire internal space 35a, but may be a structure in which the insulating material 36 is arranged to include a hollow air layer in a part of the internal space 35a. The insulating material 36 is not limited to a structure in which it is arranged to be in contact with the non-opening side 26b of the accumulator shell 26, but may include a structure in which it is arranged with a hollow air layer sandwiched between it and the non-opening side 26b. Furthermore, the insulating material 36 may be formed by multiple types of insulating materials stacked vertically within the hollow shell 38, and for example, a combination of granular insulating material and foamed insulating material may be used.

[0047] According to Modification 2, the thermal insulation of the thermal insulation section 35 can be ensured by using the thermal insulation material 36, so, as with the embodiment and Modification 1, the freezing of the base member 310 by the thermal insulation section 35 is suppressed. As a result, the decrease in the elasticity of the elastic body 311 is suppressed, and the vibration of the rotary compressor 1 is absorbed by the elastic body 311, thereby properly suppressing vibration.

[0048] Although not shown in the figures, the base member 310 may be attached to the outer circumferential surface of the accumulator shell 26, and a heat insulating portion may be provided between the base member 310 and the outer circumferential surface of the accumulator shell 26 to block heat conduction between the accumulator shell 26 and the base member 310. In this case, the heat insulating portion is formed on the outer circumferential surface of the accumulator shell 26 by a hollow container. The heat insulating portion may be a hollow space, or a heat insulating material may be filled into the hollow space. Even with such a structure, the same effects as in the above-described embodiments and modifications 1 and 2 can be obtained.

[0049] Furthermore, the rotary compressor in this embodiment is not limited to a so-called single-cylinder rotary compressor having one cylinder, but may also be applied to a so-called two-cylinder rotary compressor having two cylinders. In addition, although this embodiment has been described using a rotary compressor as an example, it may also be applied to other compressors such as scroll compressors, and the same effects as in this embodiment can be obtained. [Explanation of Symbols]

[0050] 1, 2, 3 Rotary Compressors 10 Compressor body container 10c Bottom Shell 11 Motor 12 Compression section 25 Accumulator container 26 Accumulator Shells 26a Opening side 26b Opposite opening side 35 Insulation section 35a Interior space 36. Insulation 38 Hollow Shell 38a Opening side 48 Partition members 48a outer periphery 104 Suction pipe 107 Discharge pipe 310 Base member 311 Elastic body V First weld W Second weld X Third weld Y Fourth weld

Claims

1. A sealed compressor comprising: a vertically oriented cylindrical compressor body container provided with a refrigerant discharge pipe and a suction pipe; an accumulator container connected to the suction pipe; a compression unit disposed within the compressor body container for compressing the refrigerant drawn in from the accumulator container via the suction pipe and discharging it through the discharge pipe; and a motor disposed within the compressor body container for driving the compression unit, The accumulator container has a cup-shaped accumulator shell whose opening side is joined to the compressor body container, A base member that supports the accumulator container, An elastic body supporting the base member, A heat insulating section is provided on the side of the accumulator shell opposite to the opening, and has a closed internal space that blocks heat conduction between the accumulator shell and the base member, A sealed compressor equipped with [a specific feature].

2. The accumulator container has a cup-shaped hollow shell provided on the side opposite the opening of the accumulator shell, and the opening side of the hollow shell is joined to the accumulator shell. The aforementioned internal space is formed within the hollow shell. A sealed compressor according to claim 1.

3. The joint where the hollow shell and the accumulator shell are joined is separated from the joint where the base member and the hollow shell are joined. The sealed compressor according to claim 2.

4. The accumulator container has a partition member that divides the inside of the accumulator shell, and the internal space is formed between the partition member and the side of the accumulator shell that is not open. A sealed compressor according to claim 1.

5. The outer periphery of the partition member is joined to the inner circumferential surface of the accumulator shell. The sealed compressor according to claim 4.

6. The joint where the partition member and the accumulator shell are joined is separated from the joint where the base member and the accumulator shell are joined. The sealed compressor according to claim 5.

7. The aforementioned heat-insulating section has an insulating material provided in its internal space. A sealed compressor according to any one of claims 1 to 6.

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