Positive displacement machines, compressors, cooling devices and electronic devices

Abstract

Provided are a displacement machine, a compressor, a cooling device, and an electronic device, which can suppress deterioration of components. The displacement machine includes a housing having a cylindrical guide portion in which a pressure chamber is provided inside; a sliding member having a shaft portion extending in a first direction and a piston portion provided at an end portion of the shaft portion and arranged inside the guide portion, the sliding member sliding in the first direction; a link member linked with the sliding member and extending in a second direction intersecting the first direction; a first rotary member connected with one end of the link member to rotate around a first rotary shaft in the second direction; and a swing absorbing mechanism that absorbs a swing motion of the piston portion around a shaft in the first direction. The swing absorbing mechanism is provided at one of a position between the link member and the sliding member, a position between the shaft portion and the piston portion, and a position between the piston portion and an inner wall of the guide portion.

Description

Technical Field

[0001] This invention relates to volumetric machinery, compressors, cooling devices, and electronic equipment. Background Technology

[0002] Previously, there were known volumetric machines such as compressors for refrigeration and air conditioning and internal combustion engines for generator drives (see, for example, Patent Document 1).

[0003] The volumetric compressor described in Patent Document 1 is a hermetic compressor. The hermetic compressor includes: a reciprocating component having two pistons; a cylinder; two arms; two spherical bushings; and two drive shafts, each having a drive arm. The two pistons are supported on the inner cylindrical surface of the cylinder in a manner capable of reciprocating motion and oscillating motion about an axis in the direction of reciprocating motion. The two arms are rotatably inserted into the inner cylindrical surface of the corresponding spherical bushing. The outer spherical surface of each spherical bushing is supported by the drive arm of the corresponding drive shaft at a position offset from the rotation axis of the drive shaft.

[0004] In such a hermetic compressor, the drive arm rotates around the drive shaft, and two arms connected to the drive arm via spherical bushings move in the reciprocating direction, thereby causing the reciprocating components to reciprocate within the cylinder. Consequently, the piston reciprocates on the inner circumferential cylindrical surface of the cylinder while simultaneously oscillating, thus compressing the working fluid that flows into the working space and discharging it to the outside.

[0005] Patent Document 1: Japanese Patent Application Publication No. 9-072275

[0006] In the volumetric machine described in Patent Document 1, as described above, the arm connected to the reciprocating motion component reciprocates by two drive arms rotating in opposite directions around the drive axis, and oscillates about the axis of the reciprocating motion direction. Therefore, when driving the volumetric machine, not only is a force based on the reciprocating motion of the piston applied to the cylinder and the piston reciprocating within the cylinder, but also a force based on the oscillation of the piston. Consequently, wear between the cylinder and the piston increases, leading to a problem of deterioration of the volumetric machine. In particular, when the piston moves towards top dead center, in addition to the pressure generated by gas compression applied to the cylinder and piston, the oscillation of the piston also increases, making this problem more significant. Summary of the Invention

[0007] The disclosed volumetric machine comprises: a housing having a cylindrical guide portion having a pressure chamber disposed therein; a sliding member having a shaft portion extending in a first direction and a piston portion disposed at an end of the shaft portion and disposed within the guide portion, the sliding member sliding along the first direction; a connecting member connected to the sliding member and extending in a second direction intersecting the first direction; a first rotating member connected to one end of the connecting member and rotating about a first rotation axis along the second direction; and a swing absorption mechanism absorbing the swing motion of the piston portion about an axis along the first direction, the swing absorption mechanism being disposed in one of the following positions: between the connecting member and the sliding member; between the shaft portion and the piston portion; and between the piston portion and the inner wall of the guide portion.

[0008] The compressor disclosed herein includes the aforementioned volumetric mechanical component and a drive device for rotating the first rotating member. The piston compresses the gas flowing into the pressure chamber.

[0009] The cooling apparatus disclosed herein includes: a compressor for compressing a gaseous working fluid; a condensation section for condensing the gaseous working fluid compressed by the compressor into a liquid working fluid; an expansion section for depressurizing the liquid working fluid condensed by the condensation section, thereby changing the state of the working fluid to a mixture of liquid and gas phases; and an evaporation section connected to the object being cooled in a manner capable of heat transfer, utilizing heat transferred from the object being cooled to change the working fluid flowing through the expansion section into a gaseous working fluid, and discharging the changed gaseous working fluid to the compressor.

[0010] The electronic device disclosed herein includes the aforementioned cooling device. Attached Figure Description

[0011] Figure 1 This is a block diagram illustrating the structure of the electronic device according to the first embodiment.

[0012] Figure 2 This is a cross-sectional view showing the compressor of the first embodiment.

[0013] Figure 3 This is an enlarged cross-sectional view showing a portion of the compressor according to the first embodiment.

[0014] Figure 4 This is an enlarged cross-sectional view showing a portion of the compressor included in the electronic device of the second embodiment.

[0015] Label Explanation

[0016] 1: Electronic equipment; 2: Cooling device; 21: Condensation section; 22: Expansion section; 23: Evaporation section; 24: Piping; 3A, 3B: Compressor; 4: Drive unit; 5A, 5B: Volumetric machinery; 51: Shaft assembly; 511: First shaft assembly; 512: Second shaft assembly; 52: Rotating component; 521: First rotating component; 522: Second rotating component; 53A, 53B: Connecting component; 54A, 54B: Sliding component; 541, 544: Rod; 542 543: First piston part; 55: Second piston part; 55: Housing; 551: Storage part; 552: First guide part; 553: First dividing part; 554: Second guide part; 555: Second dividing part; 56, 56A, 56B: First sealing component; 57, 57A, 57B: Second sealing component; 58, 59: Swing absorption mechanism; 581, 591: First swing absorption mechanism; 582, 592: Second swing absorption mechanism; Rx1, Rx2: Rotating shaft. Detailed Implementation

[0017] [First Implementation Method]

[0018] Hereinafter, the first embodiment of the present disclosure will be described based on the accompanying drawings.

[0019] [Structure of electronic devices]

[0020] Figure 1 This is a block diagram illustrating the structure of the electronic device 1 according to this embodiment.

[0021] like Figure 1 As shown, the electronic device 1 of this embodiment includes a cooling object CT and a cooling device 2.

[0022] The cooling object CT constitutes electronic device 1. Examples of cooling object CTs include control devices that control electronic device 1 and power supply devices that supply power to electronic components of electronic device 1.

[0023] [Structure of the cooling device]

[0024] Cooling device 2 cools the CT scanner. Specifically, cooling device 2 circulates a working fluid that undergoes a phase change between the liquid and gas phases to cool the CT scanner.

[0025] The cooling unit 2 includes a compressor 3A, a condenser section 21, an expansion section 22, an evaporator section 23, multiple pipes 24, and a cooling fan 25.

[0026] [Compressor's general structure]

[0027] Compressor 3A compresses the gaseous working fluid. That is, compressor 3A compresses the gaseous working fluid flowing in from evaporator 23, thereby raising the temperature and pressure of the gaseous working fluid. The gaseous working fluid, which has been raised and pressurized in compressor 3A, flows into condenser 21.

[0028] The structure of compressor 3A will be described in detail later.

[0029] [Structure of the condenser section]

[0030] The condenser 21 is connected to the compressor 3A via piping 24. The condenser 21 condenses the gaseous working fluid compressed by the compressor 3A, i.e., the high-temperature and high-pressure gaseous working fluid, into a liquid working fluid. Specifically, the condenser 21 condenses the gaseous working fluid into a high-pressure liquid working fluid by exchanging heat between the compressed gaseous working fluid and the cooling gas flowing into the condenser 21 through the cooling fan 25.

[0031] [Structure of the expansion section]

[0032] The expansion section 22 is a pressure reducer connected to the condenser section 21. The expansion section 22 reduces the pressure of the working fluid in liquid phase condensed by the condenser section 21, changing the state of the working fluid into a mixture of liquid and gas phases. That is, the expansion section 22 lowers the temperature of the working fluid. The expansion section 22 discharges the working fluid in the liquid-gas mixture state to the evaporator section 23. The expansion section 22 can be, for example, configured as an expansion valve capable of controlling the evaporation temperature of the liquid working fluid; more specifically, in addition to being configured as an electronic expansion valve, it can also be configured as a capillary tube.

[0033] [Structure of the evaporation section]

[0034] The evaporator 23 is connected to the object being cooled (CT) in a manner that allows for heat transfer. The evaporator 23 utilizes the heat transferred from the object being cooled (CT) to evaporate the liquid working fluid flowing from the expansion section 22, changing it into a gaseous working fluid. The changed gaseous working fluid is then discharged to the compressor 3A. As a result, the heat of the object being cooled (CT) is consumed, and the object being cooled (CT) is cooled.

[0035] [Structure of multiple piping]

[0036] Multiple pipes 24 connect the compressor 3A, condenser section 21, expansion section 22, and evaporator section 23 in a ring. The multiple pipes 24 are tubular components that allow the working fluid to flow inside.

[0037] The multiple pipes 24 include a first pipe 241, a second pipe 242, a third pipe 243, and a fourth pipe 244.

[0038] The first piping 241 connects the compressor 3A to the condenser section 21.

[0039] The second piping 242 connects the condenser section 21 to the expansion section 22.

[0040] The third pipe 243 connects the expansion section 22 to the evaporation section 23.

[0041] The fourth pipe 244 connects the evaporator 23 to the compressor 3A.

[0042] Thus, the cooling device 2 has a circulation path through which the working fluid flows sequentially through the compressor 3A, the first pipe 241, the condenser section 21, the second pipe 242, the expansion section 22, the third pipe 243, the evaporator section 23, and the fourth pipe 244, and then flows back into the compressor 3A. The circulation path cools the object being cooled, CT.

[0043] [Detailed structure of the compressor]

[0044] Figure 2 This is a cross-sectional view of compressor 3A.

[0045] As described above, compressor 3A compresses the gaseous working fluid flowing in from evaporator 23 and discharges it to condenser 21. More specifically, compressor 3A is a reciprocating compressor that compresses the gaseous working fluid through the reciprocating motion of the first piston section 542 and the second piston section 543, described later. Figure 2 As shown, the compressor 3A includes a drive unit 4 and a volumetric mechanical unit 5A.

[0046] In the following description, two mutually orthogonal directions are designated as the +X direction and the +Y direction. The +X direction is along the rotation axis of the first axis member 511 (described later) and towards the second axis member 512. That is, in Figure 2 In the view, the +X direction is defined as the right direction. Furthermore, the +Y direction is defined as the direction along the reciprocating motion of the sliding member 54A (described later) and from the second piston portion 543 of the first piston portion 542 and the second piston portion 543 of the sliding member 54A toward the first piston portion 542. That is, in Figure 2 In the view, let the +Y direction be the upward direction. The +Y direction is the direction intersecting the rotation axis. Furthermore, the direction opposite to the +X direction is defined as the -X direction, and the direction opposite to the +Y direction is defined as the -Y direction. That is, in Figure 2 In the view, let -X direction be the left direction and -Y direction be the down direction.

[0047] [Structure of the drive unit]

[0048] The drive unit 4 causes the shaft component 51 of the volumetric machine 5A to rotate about a rotation axis along the +X direction. The drive unit 4 includes a first drive unit 41 and a second drive unit 42.

[0049] The first drive unit 41 is positioned in the -X direction relative to the volumetric machine 5A. The first drive unit 41 causes the first shaft component 511 of the volumetric machine 5A to rotate about the rotation axis Rx1 along the +X direction.

[0050] The second drive unit 42 is positioned in the +X direction relative to the volumetric machine 5A. The second drive unit 42 causes the second shaft member 512 of the volumetric machine 5A to rotate about the rotation axis Rx2 along the +X direction in the opposite direction to the first shaft member 511.

[0051] In this embodiment, the first drive device 41 and the second drive device 42 are composed of motors. However, each drive device 41, 42 may also be composed of a drive device other than a motor.

[0052] [Structure of volumetric machinery]

[0053] The volumetric mechanical device 5A is driven by the drive device 4 to compress the gaseous working fluid flowing in from the evaporation section 23 and discharge the compressed gaseous working fluid. The volumetric mechanical device 5A includes a shaft component 51, a rotating component 52, a connecting component 53A, a sliding component 54A, a housing 55, a first sealing component 56, a second sealing component 57, and a swing absorption mechanism 58.

[0054] [Structure of shaft components]

[0055] The shaft component 51 is connected to the drive device 4, causing the rotating component 52, which rotates around a rotation axis along the +X direction, to rotate. The shaft component 51 has a first shaft component 511 and a second shaft component 512.

[0056] The first shaft component 511 is a shaft component disposed in the -X direction. The first shaft component 511 is rotated about the rotation axis Rx1 along the +X direction by the first drive device 41, causing the first rotating component 521 of the rotating component 52 to rotate.

[0057] The second shaft component 512 is a shaft component disposed in the +X direction. The second shaft component 512 is rotated about the rotation axis Rx2 along the +X direction by the second drive device 42, causing the second rotating component 522 of the rotating component 52 to rotate.

[0058] The extension line of the rotation axis Rx1 of the first shaft component 511 coincides with the extension line of the rotation axis Rx2 of the second shaft component 512.

[0059] [Structure of the rotating component]

[0060] The rotating component 52 is a crank connected to the shaft component 51 and rotating around the rotation axis of the shaft component 51. The rotating component 52 has a first rotating component 521 and a second rotating component 522.

[0061] The first rotating component 521 is connected to the first shaft component 511 and the connecting component 53A, and rotates coaxially with the first shaft component 511 together. That is, the first rotating component 521 rotates together with the first shaft component 511 around the rotation axis Rx1. The first rotating component 521 has a semi-circular first counterweight CW1, a hole 5211, and a spherical bearing 5212.

[0062] The first counterweight CW1 is used to reduce vibrations caused by the reciprocating motion of the sliding member 54A along the ±Y direction. The first counterweight CW1 is positioned on the first rotating member 521 in the -Y direction relative to the rotation axis Rx1 when the sliding member 54A slides to its maximum extent in the +Y direction, i.e., when the sliding member 54A reaches its top dead center. In other words, the first counterweight CW1 is positioned on the first rotating member 521 in the +Y direction relative to the rotation axis Rx1 when the sliding member 54A slides to its maximum extent in the -Y direction, i.e., when the sliding member 54A reaches its bottom dead center.

[0063] The hole 5211 extends through the first rotating member 521 in the +X direction. A spherical bearing 5212 is provided in the hole 5211, and the end 531 of the connecting member 53A in the -X direction is inserted inside the spherical bearing 5212.

[0064] The second rotating component 522 is connected to the second shaft component 512 and the connecting component 53A, and rotates coaxially with the second shaft component 512 together. That is, the second rotating component 522 rotates together with the second shaft component 512 around the rotation axis Rx2. The second rotating component 522 has a semi-circular second counterweight CW2, a hole 5221, and a spherical bearing 5222.

[0065] The second counterweight CW2, like the first counterweight CW1, is used to reduce vibrations caused by the reciprocating motion of the sliding member 54A along the +Y direction. The second counterweight CW2 is positioned on the second rotating member 522 such that it is located in the -Y direction relative to the rotation axis Rx2 when the sliding member 54A slides to the upper dead point, and in the +Y direction relative to the rotation axis Rx2 when the sliding member 54A slides to the lower dead point.

[0066] The hole 5221 extends through the second rotating member 522 along the +X direction. The +X direction end 532 of the connecting member 53A is inserted into the hole 5221.

[0067] [Structure of connecting components]

[0068] The connecting member 53A is connected to the rotating member 52 and moves in a direction intersecting the rotation axis of the shaft member 51 by the rotation of the rotating member 52. That is, the connecting member 53A is an arm member that connects the rotating member 52 and the sliding member 54A and converts the rotational motion of the rotating member 52 into the linear motion of the sliding member 54A.

[0069] The -X direction end 531 of the connecting member 53A is inserted into the spherical bearing 5212 of the first rotating member 521. Similarly, the +X direction end 532 of the connecting member 53A is inserted into the spherical bearing 5222 of the second rotating member 522. When the connecting member 53A is inserted into the holes 5211 and 5221, the connecting member 53A is arranged along the +X direction. Moreover, the connecting member 53A reciprocates along the ±Y direction according to the rotational movements of the first rotating member 521 and the second rotating member 522, which rotate in opposite directions.

[0070] Furthermore, although the illustration is omitted, when the connecting member 53A moves in the +Y or -Y direction along with the rotation of each rotating member 521, 522, it rotates clockwise or counterclockwise when viewed from the +Y direction, centered on the axis along the +Y direction. Specifically, when the connecting member 53A, located at the bottom dead center, moves in the +Y direction along with the rotation of the rotating members 521, 522, it rotates clockwise or counterclockwise when viewed from the +Y direction until it reaches halfway through its movement range in the +Y direction. Additionally, when the connecting member 53A reaches the top dead center from halfway through its movement range in the +Y direction, it rotates clockwise or counterclockwise when viewed from the +Y direction. Furthermore, when the connecting member 53A, located at the top dead center, moves in the -Y direction as the rotating members 521 and 522 rotate, it rotates in either a clockwise or counterclockwise direction when viewed from the +Y direction, until it reaches halfway through its movement range in the -Y direction. Moreover, when the connecting member 53A reaches the bottom dead center from halfway through its movement range in the -Y direction, it rotates in either a clockwise or counterclockwise direction when viewed from the +Y direction. Thus, as the connecting member 53A reciprocates along the +Y direction, it oscillates clockwise or counterclockwise about an axis along the +Y direction when viewed from the +Y direction.

[0071] In this embodiment, a swing-absorbing mechanism 58 is provided between the connecting member 53A and the sliding member 54A. This allows the connecting member 53A and the sliding member 54A to reciprocate along the ±Y direction as a single unit, while simultaneously preventing the sliding member 54A from rotating around an axis along the +Y direction while still being integrated with the connecting member 53A. In other words, the sliding member 54A can rotate independently of the connecting member 53A around an axis along the +Y direction via the swing-absorbing mechanism 58. The structure of this swing-absorbing mechanism 58 will be described in detail later.

[0072] [Structure of the sliding component]

[0073] The sliding member 54A is connected to the connecting member 53A and reciprocates integrally with the connecting member 53A in the ±Y direction. That is, the sliding member 54A slides in the +Y direction, which is the intersection direction with respect to the rotation axes Rx1 and Rx2. The sliding member 54A has a rod 541, a first piston portion 542, and a second piston portion 543.

[0074] The rod 541 is equivalent to a shaft, and is a shaft-shaped component that is connected to the connecting member 53A along the +Y direction. The rod 541 has a flange 5411 approximately at its center in the +Y direction.

[0075] The flange portion 5411 is a portion that protrudes radially outward from the outer surface of the rod 541. Although not shown in the figure, the flange portion 5411 is generally circular when viewed from the +Y direction. In addition, a swing absorption mechanism 58 is provided between the flange portion 5411 and the connecting member 53A. The swing absorption mechanism 58 will be described in detail later.

[0076] A first piston portion 542 is disposed at the end of the rod 541 in the +Y direction. The first piston portion 542 has an outer diameter larger than that of the rod 541. The first piston portion 542 is disposed within a first guide portion 552 constituting the housing 55, and reciprocates within the first guide portion 552 in the ±Y direction when the rod 541 reciprocates along the ±Y direction. The first piston portion 542 includes a flow path 5421, a suction valve 5422, and a piston seal 5423.

[0077] The flow path 5421 extends through the first piston section 542 along the +Y direction. The flow path 5421 supplies gaseous working fluid to the first pressure chamber S2 inside the first guide section 552 relative to the space in the +Y direction of the first piston section 542. Furthermore, inside the first guide section 552, the space in the -Y direction relative to the first piston section 542 is the first working chamber S3.

[0078] When the pressure in the first pressure chamber S2 is lower than the pressure in the first working chamber S3, the suction valve 5422 opens, allowing the gaseous working fluid to flow into the first pressure chamber S2 through the flow path 5421. When the pressure in the first pressure chamber S2 is higher than the pressure in the first working chamber S3, the suction valve 5422 closes.

[0079] When the first piston portion 542 slides in the +Y direction, it reduces the volume of the first pressure chamber S2. As a result, the first piston portion 542 compresses the gaseous working fluid flowing into the first pressure chamber S2. The gaseous working fluid is, for example, a gas.

[0080] The piston seal 5423 is formed in an annular shape and disposed on the outer peripheral surface of the first piston portion 542. The piston seal 5423 contacts the inner wall of the first guide portion 552. Furthermore, the piston seal 5423 deforms due to the pressure in the -Y direction generated as the first piston portion 542 approaches the top dead center, sealing the outer peripheral surface of the first piston portion 542 with the inner wall of the first guide portion 552. This prevents the gaseous working fluid in the first pressure chamber S2 from flowing out in the -Y direction between the outer peripheral surface of the first piston portion 542 and the inner wall of the first guide portion 552, thus preventing a decrease in pressure within the first pressure chamber S2.

[0081] The second piston portion 543 is disposed at the end of the rod 541 in the -Y direction. The second piston portion 543 has an outer diameter larger than that of the rod 541. The second piston portion 543 is disposed within the second guide portion 554 constituting the housing 55, and reciprocates within the second guide portion 554 in the ±Y direction when the rod 541 reciprocates in the ±Y direction. The second piston portion 543 has the same flow path 5421, suction valve 5422, and piston seal 5423 as the first piston portion 542.

[0082] When the second piston portion 543 slides in the -Y direction, it reduces the volume of the second pressure chamber S4. As a result, the second piston portion 543 compresses the gaseous working fluid flowing into the second pressure chamber S4. As described above, the gaseous working fluid is an example of a gas.

[0083] [Structure of the shell]

[0084] The housing 55 is the housing for the main components of the volumetric machinery 5A. The housing 55 has a housing section 551, a first guide section 552, a first dividing section 553, a second guide section 554, and a second dividing section 555.

[0085] [Structure of the storage section]

[0086] The storage section 551 internally forms the mechanism chamber S1. That is, the storage section 551 houses a portion of the shaft component 51, the rotating component 52, the connecting component 53A, a portion of the sliding component 54A, the first sealing component 56, and the second sealing component 57 within the mechanism chamber S1. More specifically, the mechanism chamber S1 houses the +X end of the first shaft component 511, the -X end of the second shaft component 512, the first rotating component 521, the second rotating component 522, the connecting component 53A, the central portion of the rod 541 in the +Y direction, the first sealing component 56, and the second sealing component 57.

[0087] The mechanism chamber S1 contains lubricating oil. In this embodiment, the amount of lubricating oil is about half the volume of the mechanism chamber S1, but it is not limited to this and can be changed appropriately.

[0088] [Structure of the first guide section]

[0089] The first guide portion 552 is cylindrical and protrudes from the receiving portion 551 in the +Y direction. A first piston portion 542 is disposed inside the first guide portion 552, and the first guide portion 552 guides the reciprocating motion of the first piston portion 542 along the ±Y direction.

[0090] The first guide section 552 constitutes the first pressure chamber S2 and the first working chamber S3.

[0091] The first pressure chamber S2 is the space within the first guide portion 552 in the +Y direction relative to the first piston portion 542. That is, the first pressure chamber S2 is a space disposed within the first guide portion 552 whose volume changes due to the sliding of the first piston portion 542.

[0092] The first working chamber S3 is a space within the interior space of the first guide section 552 in the -Y direction relative to the first piston section 542, and is connected to the mechanism chamber S1. That is, the first working chamber S3 is a space disposed inside the first guide section 552 between the mechanism chamber S1 and the first pressure chamber S2, and separated from the first pressure chamber S2 by the first piston section 542. Furthermore, the mechanism chamber S1 and the first working chamber S3 are sealed by a second sealing member 57 disposed in the configuration section 5532 described later.

[0093] The first guide section 552 has a first partition 5521, a first discharge valve 5523 and a first outflow section 5524.

[0094] The first partition 5521 divides the first pressure chamber S2 into a first intake chamber S21, which is a space in the -Y direction, and a first high-pressure chamber S22, which is a space in the +Y direction. A through hole 5522 extending in the +Y direction is provided in the first partition 5521, through which the first intake chamber S21 and the first high-pressure chamber S22 communicate. Furthermore, a gaseous working fluid is supplied from the first working chamber S3 to the first intake chamber S21 via a flow path 5421 of the first piston portion 542.

[0095] The first discharge valve 5523 opens when the pressure in the first suction chamber S21 is higher than the pressure in the first high pressure chamber S22.

[0096] The first outlet 5524 is the portion of the first guide 552 disposed on the side of the first high-pressure chamber S22. The first outlet 5524 and the first piping 241 (see reference) Figure 1 )connect.

[0097] Furthermore, a portion of the gaseous working fluid supplied from the fourth pipe 244 flows into the space within the first guide section 552, and is supplied to the first suction chamber S21 via the flow path 5421 and the suction valve 5422 through the reciprocating motion of the first piston section 542. Subsequently, the gaseous working fluid is compressed by the first piston section 542 and flows from the first suction chamber S21 into the first high-pressure chamber S22 via the first discharge valve 5523, and flows out from the first outlet section 5524 into the first pipe 241.

[0098] [Structure of the First Division]

[0099] The first dividing section 553 is provided at the connection between the storage section 551 and the first guide section 552, and serves as the dividing section between the mechanism chamber S1 and the first working chamber S3. The first dividing section 553 is located in the first guide section 552 on the side of the storage section 551, and protrudes in the direction of the inner diameter of the first guide section 552. The first dividing section 553 has a connecting hole 5531 and a placement section 5532.

[0100] The connecting hole 5531 extends through the first dividing section 553 in the +Y direction, and the rod 541 of the sliding member 54A extends through the connecting hole 5531 in the +Y direction. That is, the first working chamber S3 is connected to the mechanism chamber S1 via the connecting hole 5531.

[0101] The configuration section 5532 is the part in the first division section 553 in which the second sealing member 57 is configured. The second sealing member 57 will be described in detail later.

[0102] [Structure of the Second Guide Section]

[0103] The second guide portion 554 is cylindrical and protrudes from the receiving portion 551 in the -Y direction. A second piston portion 543 is disposed inside the second guide portion 554, and the second guide portion 554 guides the reciprocating motion of the second piston portion 543 along the ±Y direction.

[0104] The second guide section 554 constitutes the second pressure chamber S4 and the second working chamber S5.

[0105] The second pressure chamber S4 is the space within the second guide portion 554 in the -Y direction relative to the second piston portion 543. That is, the second pressure chamber S4 is a space provided within the second guide portion 554 whose volume changes due to the sliding of the second piston portion 543.

[0106] The second working chamber S5 is a space within the interior space of the second guide section 554 in the +Y direction relative to the second piston section 543, and is connected to the mechanism chamber S1. That is, the second working chamber S5 is a space disposed inside the second guide section 554 between the mechanism chamber S1 and the second pressure chamber S4, and is separated from the second pressure chamber S4 by the second piston section 543. Furthermore, the mechanism chamber S1 and the second working chamber S5 are sealed by a second sealing member 57 disposed in the configuration section 5552 described later.

[0107] The second guide section 554 has the same second partition 5541, second discharge valve 5543, and second outflow section 5544 as the first partition 5521, first discharge valve 5523, and first outflow section 5524 of the first guide section 552.

[0108] The second partition 5541 divides the second pressure chamber S4 into a second intake chamber S41, which is a space in the +Y direction, and a second high-pressure chamber S42, which is a space in the -Y direction. A through hole 5542 extending in the +Y direction is provided in the second partition 5541, through which the second intake chamber S41 and the second high-pressure chamber S42 communicate. Furthermore, working fluid is supplied from the second working chamber S5 to the second intake chamber S41 via a flow path 5431 of the second piston portion 543.

[0109] The second discharge valve 5543 opens when the pressure in the second suction chamber S41 is higher than the pressure in the second high pressure chamber S42.

[0110] The second outlet 5544 is a portion disposed in the second guide 554 on the side of the second high-pressure chamber S42. The second outlet 5544 is connected to the first pipe 241.

[0111] Furthermore, another portion of the gaseous working fluid supplied from the fourth pipe 244 flows into the space within the second guide section 554, and is supplied to the second suction chamber S41 via the flow path 5431 and the suction valve 5432 through the reciprocating motion of the second piston section 543. Afterwards, the gaseous working fluid is compressed by the second piston section 543 and flows from the second suction chamber S41 into the second high-pressure chamber S42 via the second discharge valve 5543, and then flows out from the second outlet section 5544 to the first pipe 241.

[0112] [Structure of the Second Division]

[0113] The second dividing section 555 is provided at the connection between the storage section 551 and the second guide section 554, and serves as the dividing section between the dividing mechanism chamber S1 and the second working chamber S5. The second dividing section 555 is located in the second guide section 554 on the side of the storage section 551, and protrudes in the direction of the inner diameter of the second guide section 554. The second dividing section 555 has a connecting hole 5551 and a placement section 5552.

[0114] The connecting hole 5551 extends through the second dividing section 555 in the +Y direction, and the rod 541 of the sliding member 54A extends through the connecting hole 5551 in the +Y direction. That is, the second working chamber S5 is connected to the mechanism chamber S1 via the connecting hole 5551.

[0115] The configuration section 5552 is the part in the second division section 555 in which the second sealing member 57 is configured. The second sealing member 57 will be described in detail later.

[0116] [Structure of the first sealing component]

[0117] The first sealing component 56 is a component that impedes the movement of lubricating oil. Specifically, the first sealing component 56 is an annular oil seal that seals the interior of the mechanism chamber S1, restricting the movement of lubricating oil sealed within the mechanism chamber S1 to the outside of the mechanism chamber S1. Figure 2 As shown, two first sealing components 56 are provided in the volumetric machine 5A. For ease of explanation, one of the two first sealing components 56 is designated as first sealing component 56A, and the other is designated as first sealing component 56B.

[0118] The first sealing member 56A is an annular member disposed between the inner wall of the mechanism chamber S1 and the first shaft member 511 of the shaft member 51, and is formed of an elastic material such as rubber. Specifically, the first sealing member 56A is disposed between the inner wall of the mechanism chamber S1 in the -X direction and the first shaft member 511, in a manner that it surrounds the first shaft member 511 circumferentially. The first sealing member 56A is fixed to the inner wall of the mechanism chamber S1, and its inner end is connected to the outer peripheral surface of the first shaft member 511.

[0119] Like the first sealing member 56A, the first sealing member 56B is an annular member disposed between the inner wall of the mechanism chamber S1 and the second shaft member 512 of the shaft member 51, and is formed of an elastic material such as rubber. Specifically, the first sealing member 56B is disposed between the inner wall of the mechanism chamber S1 in the +X direction and the second shaft member 512, in a manner that surrounds the second shaft member 512 circumferentially. The first sealing member 56B is fixed to the inner wall of the mechanism chamber S1, and its inner end is connected to the outer peripheral surface of the second shaft member 512.

[0120] [Structure of the second sealing component]

[0121] The second sealing member 57 is a component that impedes the movement of lubricating oil. Specifically, the second sealing member 57 seals the mechanism chamber S1, restricting the movement of the lubricating oil sealed within the mechanism chamber S1 to the outside of the mechanism chamber S1. Two second sealing members 57 are provided in the compressor 3A. For ease of explanation, one of the two second sealing members 57 is designated as second sealing member 57A, and the other is designated as second sealing member 57B.

[0122] The second sealing member 57A is an annular member disposed between the inner wall of the mechanism chamber S1 and the sliding member 54A, and is formed of an elastic material such as rubber. The second sealing member 57A is disposed in the arrangement portion 5532 of the first dividing portion 553. More specifically, the second sealing member 57A is an annular oil seal disposed in the mechanism chamber S1 in the +Y direction between the inner wall of the rod 541 surrounding the sliding member 54A and the rod 541, arranged in a manner that surrounds the rod 541 circumferentially. The second sealing member 57A is fixed to the inner wall of the mechanism chamber S1.

[0123] The second sealing member 57B is an annular member disposed between the inner wall of the mechanism chamber S1 and the sliding member 54A, and is formed of an elastic material such as rubber. The second sealing member 57B is disposed in the arrangement portion 5552 of the second dividing portion 555. More specifically, the second sealing member 57B is an annular oil seal disposed in the mechanism chamber S1 in the -Y direction, surrounding the inner wall of the rod 541 and the rod 541, and arranged to surround the rod 541 circumferentially. The second sealing member 57B is fixed to the inner wall of the mechanism chamber S1.

[0124] By providing the first sealing member 56A, the movement of lubricating oil between the outer peripheral surface of the first shaft member 511 and the first sealing member 56A fixed to the inner wall of the mechanism chamber S1 is restricted in the -X direction. Furthermore, by providing the first sealing member 56B, the movement of lubricating oil between the outer peripheral surface of the second shaft member 512 and the first sealing member 56B fixed to the inner wall of the mechanism chamber S1 is restricted in the +X direction.

[0125] By providing a second sealing member 57A, the movement of lubricating oil in the +Y direction between the outer peripheral surface of the rod 541 and the second sealing member 57A fixed to the inner wall of the mechanism chamber S1 is restricted. Furthermore, by providing a second sealing member 57B, the movement of lubricating oil in the -Y direction between the outer peripheral surface of the rod 541 and the second sealing member 57B fixed to the inner wall of the mechanism chamber S1 is restricted.

[0126] In this way, the path through which lubricating oil leaks from the mechanism chamber S1 to the outside is sealed by the first sealing member 56 and the second sealing member 57. Therefore, even when the volumetric machinery 5A or the compressor 3A is tilted during operation, lubricating oil can be retained within the mechanism chamber S1. Thus, it is possible to maintain the lubrication of the drive components within the mechanism chamber S1, namely, the rotating component 52, the connecting component 53A, and the sliding component 54A.

[0127] [Structure of the oscillating absorption mechanism]

[0128] The oscillation absorption mechanism 58 absorbs the oscillation motion of the first piston portion 542 and the second piston portion 543 centered on the rod 541. That is, even when the connecting member 53A oscillates around an axis along the +Y direction, the oscillation absorption mechanism 58 absorbs the oscillation of the sliding member 54A connected to the connecting member 53A, and suppresses the oscillation of the first piston portion 542 and the second piston portion 543 around an axis along the +Y direction when the sliding member 54A reciprocates in the ±Y direction. In other words, the oscillation absorption mechanism 58 is provided between the rod 541 of the connecting member 53A and the sliding member 54A, allowing one component of the connecting member 53A and the rod 541 to oscillate relative to the other component around an axis along the +Y direction.

[0129] Figure 3 This is a cross-sectional view showing the structure of the swing absorption mechanism 58.

[0130] like Figure 2 and Figure 3 As shown, the swing absorption mechanism 58 includes a first swing absorption mechanism 581 and a second swing absorption mechanism 582. The first swing absorption mechanism 581 and the second swing absorption mechanism 582 are disposed inside the connecting member 53A and are connected to the connecting member 53A and the rod 541, respectively.

[0131] The first swing absorption mechanism 581 is composed of a sliding bearing disposed in the +Y direction relative to the flange portion 5411.

[0132] The sliding bearing constituting the first oscillating absorption mechanism 581 is formed in an annular shape when viewed from the +Y direction. The sliding bearing has a through hole through which the rod 541 passes in the +Y direction. Although detailed drawings are omitted, the sliding bearing has a fixed part and a movable part that can slide relative to the fixed part. The fixed part is connected to one of the connecting part 53A and the flange portion 5411, and the movable part is connected to the other of the connecting part 53A and the flange portion 5411.

[0133] The second swing absorption mechanism 582 is composed of a sliding bearing disposed in the -Y direction relative to the flange portion 5411 of the rod 541.

[0134] The sliding bearing constituting the second oscillating absorption mechanism 582 is the same sliding bearing constituting the first oscillating absorption mechanism 581. Specifically, the sliding bearing constituting the second oscillating absorption mechanism 582 is formed in annular shape when viewed from the -Y direction. The sliding bearing has a through hole through which the rod 541 passes in the +Y direction. The fixed part of the sliding bearing is connected to one of the connecting part 53A and the flange portion 5411, and the moving part of the sliding bearing is connected to the other of the connecting part 53A and the flange portion 5411.

[0135] The oscillation absorption mechanism 58 allows rotation of one component of the connecting member 53A and the rod 541 relative to the other. Therefore, even when the first rotating member 521 and the second rotating member 522 rotate in opposite directions around rotation axes Rx1 and Rx2, and the connecting member 53A oscillates around an axis in the +Y direction, it can suppress the rod 541 from oscillating coaxially with the connecting member 53A. This suppresses rotation of the first piston portion 542 along the inner circumferential surface of the first guide portion 552 around an axis in the +Y direction, and suppresses oscillation of the second piston portion 543 along the inner circumferential surface of the second guide portion 554 around an axis in the +Y direction.

[0136] Therefore, wear between the inner peripheral surfaces of the first piston portion 542 and the first guide portion 552 can be suppressed, and wear between the inner peripheral surfaces of the second piston portion 543 and the second guide portion 554 can also be suppressed. For example, wear of the piston seal 5423 of the first piston portion 542 and wear of the piston seal 5433 of the second piston portion 543 can be suppressed.

[0137] Furthermore, the swing absorption mechanism of at least one of the first swing absorption mechanism 581 and the second swing absorption mechanism 582 may also be constituted by a rolling bearing, for example.

[0138] [Effects of the First Embodiment]

[0139] The electronic device 1 of this embodiment described above has the following effects.

[0140] Electronic device 1 is equipped with a cooling device 2.

[0141] The cooling device 2 includes a compressor 3A, a condenser 21, an expansion section 22, and an evaporator 23. The compressor 3A compresses the gaseous working fluid. The condenser 21 condenses the gaseous working fluid compressed by the compressor 3A into a liquid working fluid. The expansion section 22 depressurizes the liquid working fluid condensed by the condenser 21, changing the state of the working fluid into a mixture of liquid and gas phases. The evaporator 23 is connected to the object being cooled (CT) in a manner capable of heat transfer, using the heat transferred from the object being cooled (CT) to change the working fluid flowing through the expansion section 22 into a gaseous working fluid, which is then discharged back to the compressor 3A.

[0142] The compressor 3A includes a positive displacement mechanical part 5A and a drive device 4 for rotating the rotating part 52 of the positive displacement mechanical part 5A. The first piston section 542 and the second piston section 543 of the positive displacement mechanical part 5A compress the gaseous working fluid flowing into the pressure chambers S2 and S4. The first piston section 542 and the second piston section 543 are equivalent to piston sections, and the gaseous working fluid is equivalent to gas.

[0143] The volumetric machine 5A includes a first guide section 552, a second guide section 554, a rotating component 52, a connecting component 53A, a sliding component 54A, a first pressure chamber S2, and a swing absorption mechanism 58.

[0144] The first guide portion 552 and the second guide portion 554 are cylindrical guide portions that constitute the housing 55. The rotating member 52 rotates about a rotation axis along the +X direction. The connecting member 53A is connected to the rotating member 52 and moves in the ±Y direction, intersecting the rotation axis of the rotating member 52, by means of the rotation of the rotating member 52. The sliding member 54A has a rod 541 along the +Y direction, a first piston portion 542 disposed at the +Y end of the rod 541 and disposed in the first guide portion 552, and a second piston portion 543 disposed at the -Y end of the rod 541 and disposed in the second guide portion 554. The rod 541 is equivalent to a shaft portion, and the first piston portion 542 and the second piston portion 543 are equivalent to piston portions. The sliding member 54A is connected to the connecting member 53A and slides in the +Y direction. The first pressure chamber S2 is disposed in the first guide portion 552, and its volume changes due to the sliding of the first piston portion 542. The second pressure chamber S4 is disposed within the second guide portion 554, and its volume changes due to the sliding of the second piston portion 543.

[0145] The oscillation absorption mechanism 58 absorbs the oscillation motion of the first piston portion 542 and the second piston portion 543 centered on the axis along the +Y direction. In other words, when the connecting member 53A oscillates centered on the axis along the +Y direction, the oscillation absorption mechanism 58 suppresses the oscillation of the first piston portion 542 and the second piston portion 543 together with the connecting member 53A centered on the axis along the +Y direction. The oscillation absorption mechanism 58 is disposed between the connecting member 53A and the rod 541.

[0146] According to this structure, during the operation of the volumetric mechanical device 5A, the oscillation of the first piston portion 542 relative to the inner wall of the first guide portion 552 and the oscillation of the second piston portion 543 relative to the inner wall of the second guide portion 554 can be suppressed. This suppresses wear between the first piston portion 542 and the inner wall of the first guide portion 552 caused by the oscillation of the first piston portion 542 relative to the inner wall of the first guide portion 552 about an axis in the +Y direction. Similarly, wear between the second piston portion 543 and the inner wall of the second guide portion 554 caused by the oscillation of the second piston portion 543 relative to the inner wall of the second guide portion 554 about an axis in the +Y direction can be suppressed. Therefore, the lifespan of the volumetric mechanical device 5A can be extended. Furthermore, this extends the lifespan of the compressor 3A, and consequently, extends the lifespan of the cooling device 2 and the electronic device 1.

[0147] In the volumetric machine 5A, the swing absorption mechanism 58 is provided between the connecting member 53A and the rod 541, allowing one of the connecting member 53A and the rod 541 to swing relative to the other about an axis along the +Y direction.

[0148] With this structure, even when the connecting member 53A moves in the ±Y direction and oscillates about an axis in the +Y direction as the rotating member 52 rotates, the rod 541 connected to the connecting member 53A can slide in the ±Y direction, and the oscillation of the rod 541 with the connecting member 53A is suppressed. Thus, the oscillation of the first piston portion 542 at the end of the rod 541 about an axis in the +Y direction along the inner wall of the first guide portion 552 can be suppressed. Similarly, the oscillation of the second piston portion 543 at the end of the rod 541 about an axis in the +Y direction along the inner wall of the second guide portion 554 can be suppressed. Therefore, wear generated between the inner walls of the first piston portion 542 and the first guide portion 552, and wear generated between the inner walls of the second piston portion 543 and the second guide portion 554, can be suppressed, thereby achieving a long service life for the volumetric machine 5A.

[0149] In the volumetric machine 5A, the first swing absorption mechanism 581 and the second swing absorption mechanism 582 of the swing absorption mechanism 58 are composed of sliding bearings.

[0150] Based on this structure, the oscillating absorption mechanism 58 can be easily constructed. Therefore, it is possible to suppress the structural complexity of the volumetric mechanism 5A.

[0151] Furthermore, even when the oscillating absorption mechanism 58 is constructed using rolling bearings, the oscillating absorption mechanism 58 can be constructed in the same simple way.

[0152] The volumetric machine 5A includes a shaft member 51 that allows a rotating component 52 to rotate about rotation axes Rx1 and Rx2. The shaft member 51 has a first shaft member 511 and a second shaft member 512. The second shaft member 512 is disposed on the side opposite to the first shaft member 511 via a sliding member 54A and rotates in the opposite direction to the rotation direction of the first shaft member 511. The rotating component 52 has a first rotating component 521 and a second rotating component 522. The first rotating component 521 is connected to the first shaft member 511 and a connecting member 53A, and rotates coaxially with the first shaft member 511. The second rotating component 522 is connected to the second shaft member 512 and the connecting member 53A, and rotates coaxially with the second shaft member 512.

[0153] With this structure, the first rotating member 521, which is connected to the first shaft member 511, and the second rotating member 522, which is connected to the second shaft member 512, rotate in opposite directions. As a result, the vibration of the volumetric mechanism 5A can be reduced when the sliding member 54A, which is connected to the connecting member 53A of the first rotating member 521 and the second rotating member 522, slides.

[0154] Furthermore, in the structure of this volumetric machine 5A, the connecting member 53A reciprocates in the ±Y direction and oscillates about an axis along the +Y direction due to the opposite rotation of the first rotating member 521 and the second rotating member 522. The volumetric machine 5A has an oscillation absorption mechanism 58, which suppresses the oscillation of the first piston portion 542 relative to the inner wall of the first guide portion 552 and the oscillation of the second piston portion 543 relative to the inner wall of the second guide portion 554. Therefore, wear generated between the inner walls of the first piston portion 542 and the first guide portion 552, and wear generated between the inner walls of the second piston portion 543 and the second guide portion 554, can be suppressed, thus extending the lifespan of the volumetric machine 5A, and consequently extending the lifespan of the compressor 3A, the cooling device 2, and the electronic device 1.

[0155] [Second Implementation]

[0156] Next, a second embodiment of this disclosure will be described.

[0157] The electronic device of this embodiment has the same structure as the electronic device of the first embodiment, but the configuration of the swing absorption mechanism is different. Furthermore, in the following description, parts that are the same as or substantially the same as those already described are marked with the same reference numerals and their descriptions are omitted.

[0158] [Brief Structure of Electronic Equipment and Cooling Devices]

[0159] Figure 4 This is an enlarged cross-sectional view showing a portion of the compressor 3B included in the electronic device of this embodiment. That is, Figure 4 This is a cross-sectional view of compressor 3B showing the configuration of the oscillating absorption mechanism 59.

[0160] In addition to having, the electronic device of this embodiment has Figure 4 Except that the compressor 3B shown replaces the compressor 3A of the first embodiment, it has the same structure and function as the electronic device 1 of the first embodiment. That is, the cooling device of the electronic device of this embodiment has the same structure and function as the cooling device 2 of the first embodiment, except that it has a compressor 3B to replace the compressor 3A.

[0161] [Compressor Structure]

[0162] Like compressor 3A, compressor 3B is a reciprocating compressor that compresses the gaseous working fluid flowing in from evaporator 23 via fourth pipe 244. Compressor 3B includes drive unit 4 and positive displacement mechanical unit 5B.

[0163] The volumetric machine 5B, except that it replaces the connecting member 53A, the sliding member 54A, and the swing absorption mechanism 58 with a connecting member 53B, a sliding member 54B, and a swing absorption mechanism 59, has the same structure and function as the volumetric machine 5A of the first embodiment. That is, the volumetric machine 5B includes a shaft member 51, a rotating member 52, a connecting member 53B, a sliding member 54B, a housing 55, a first sealing member 56, a second sealing member 57, and a swing absorption mechanism 59.

[0164] Connecting component 53B is connected to rotating component 52 in the same way as connecting component 53A, and moves along the +Y direction, which intersects the rotation axes Rx1 and Rx2 of shaft component 51, through the rotation of rotating component 52. That is, connecting component 53B is an arm component that connects rotating component 52 and sliding component 54B, converting the rotational motion of rotating component 52 centered on rotation axes Rx1 and Rx2 into the reciprocating motion of sliding component 54B along the ±Y direction.

[0165] The -X direction end 531 of the connecting member 53B is inserted into the spherical bearing 5212 of the first rotating member 521, and the +X direction end 532 of the connecting member 53B is inserted into the spherical bearing 5222 of the second rotating member 522. Thus, when the connecting member 53B is inserted into the holes 5211 and 5221, the connecting member 53B is positioned along the +X direction. Furthermore, the connecting member 53B reciprocates along the ±Y direction according to the rotational movements of the first rotating member 521 and the second rotating member 522, which rotate in opposite directions.

[0166] Furthermore, unlike the interior of the connecting member 53A, the swing absorption mechanism 58 is not provided inside the connecting member 53B. That is, the connecting member 53B does not have a storage part for the swing absorption mechanism 58.

[0167] The sliding member 54B is connected to the connecting member 53B and reciprocates integrally with the connecting member 53B in the ±Y direction. That is, the sliding member 54B reciprocates in the ±Y direction relative to the intersection of the rotation axes Rx1 and Rx2. The sliding member 54B includes: a rod 544; a first piston portion 542 disposed at the +Y end of the rod 544; and a second piston portion 543 disposed at the -Y end of the rod 544.

[0168] Rod 544 is equivalent to a shaft. Unlike rod 541, rod 544 does not have a flange 5411. In addition, rod 544 is integrally connected to connecting member 53B. Therefore, rod 544 and connecting member 53B reciprocate together in the ±Y direction and swing about an axis along the +Y direction.

[0169] Thus, the volumetric machine 5B does not have the swing absorption mechanism 58, and therefore has the connecting member 53B and the sliding member 54B. However, it is not limited to this, the volumetric machine 5B may also have the connecting member 53A, the sliding member 54A and the swing absorption mechanism 58 instead of the connecting member 53B and the sliding member 54B.

[0170] [Structure of the oscillating absorption mechanism]

[0171] Like the swing absorption mechanism 58, the swing absorption mechanism 59 absorbs the swing of the first piston portion 542 and the second piston portion 543 relative to the rod 544, centered on an axis along the +Y direction. In other words, the swing absorption mechanism 59 suppresses the first piston portion 542 and the second piston portion 543 from swinging together with the rod 544, centered on an axis along the +Y direction, when the rod 544 swings. Furthermore, the +Y direction is the direction of intersection with respect to the respective rotation axes Rx1 and Rx2 of the shaft member 51.

[0172] The swing absorption mechanism 59 includes a first swing absorption mechanism 591 and a second swing absorption mechanism 592.

[0173] A first swing-absorbing mechanism 591 is disposed between the rod 544 of the sliding member 54B and the first piston portion 542, allowing one component of the rod 544 and the first piston portion 542 to swing relative to the other component about an axis along the +Y direction. The first swing-absorbing mechanism 591 is constructed of a sliding bearing. Although detailed illustrations are omitted, the sliding bearing constituting the first swing-absorbing mechanism 591 has a cylindrical fixed component and a cylindrical moving component capable of moving along the outer circumferential surface of the fixed component in the circumferential direction of the fixed component. One component of the fixed component and the moving component is fixed to the outer circumferential surface of the rod 544, and the other component is fixed to the first piston portion 542.

[0174] Therefore, even when the rod 544 connected to the connecting member 53B swings about the axis along the +Y direction due to the rotation of the first rotating member 521 and the second rotating member 522 in opposite directions, the first piston portion 542 will not swing along with the rod 544. That is, even when the rod 544 swings about the axis along the +Y direction, the first piston portion 542 will not swing with the rod 544. As a result, the first piston portion 542 does not swing about the axis along the +Y direction, but reciprocates along the ±Y direction, thus suppressing wear between the inner wall of the first piston portion 542 and the first guide portion 552. Therefore, for example, it is possible to suppress the deterioration of the piston seal 5423 provided on the outer peripheral surface of the first piston portion 542 caused by the swinging of the first piston portion 542. Therefore, it is possible to suppress the deterioration of the volumetric machinery 5B, thereby achieving a longer service life of the volumetric machinery 5B, and further achieving a longer service life of the compressor 3B, the cooling device 2, and the electronic equipment.

[0175] The second oscillation absorption mechanism 592 is disposed between the rod 544 of the sliding member 54B and the second piston portion 543, allowing the component of one of the rod 544 and the second piston portion 543 to oscillate relative to the other component about an axis along the +Y direction. The second oscillation absorption mechanism 592 is also constructed of the same sliding bearing as the first oscillation absorption mechanism 591.

[0176] Therefore, even when the rod 544 connected to the connecting member 53B swings about an axis in the +Y direction, the second piston portion 543 will not swing in sync with the swing of the rod 544. Thus, the second piston portion 543 does not swing about an axis in the +Y direction, but reciprocates along the ±Y direction, thereby suppressing wear between the inner walls of the second piston portion 543 and the second guide portion 554. Therefore, for example, it is possible to suppress the deterioration of the piston seal 5433 of the second piston portion 543 caused by the swinging of the second piston portion 543. Therefore, the deterioration of the volumetric machinery 5B can be suppressed, thus extending the lifespan of the volumetric machinery 5B, and consequently extending the lifespan of the compressor 3B, the cooling device 2, and the electronic equipment.

[0177] In addition, at least one of the swing absorption mechanisms 591 and 592 may also be composed of a rolling bearing.

[0178] [Effects of the Second Implementation]

[0179] In addition to having the same effects as the electronic device 1 of the first embodiment, the electronic device described above also has the following effects.

[0180] In the volumetric machine 5B, a first swing absorption mechanism 591 of the swing absorption mechanism 59 is disposed between the rod 544 and the first piston portion 542. The rod 544 corresponds to a shaft portion, and the first piston portion 542 corresponds to a piston portion. The first swing absorption mechanism 591 allows one component of the rod 544 and the first piston portion 542 to swing relative to the other component about an axis along the +Y direction. A second swing absorption mechanism 592 of the swing absorption mechanism 59 is disposed between the rod 544 and the second piston portion 543. The second piston portion 543 corresponds to a piston portion. The second swing absorption mechanism 592 allows one component of the rod 544 and the second piston portion 543 to swing relative to the other component about an axis along the +Y direction.

[0181] According to this structure, even when the rod 544 and the connecting member 53B swing together about an axis in the +Y direction, the swinging of the first piston portion 542 and the second piston portion 543 together with the rod 544 about an axis in the +Y direction can be suppressed. Therefore, wear generated between the inner walls of the first piston portion 542 and the first guide portion 552, and wear generated between the inner walls of the second piston portion 543 and the second guide portion 554, can be suppressed, thus extending the lifespan of the volumetric machinery 5B, and consequently extending the lifespan of the compressor 3B, the cooling device 2, and the electronic equipment.

[0182] [Variations on the implementation method]

[0183] This disclosure is not limited to the above-described embodiments; variations and improvements within the scope of achieving the purpose of this disclosure are included in this disclosure.

[0184] In the first embodiment described above, the swing absorption mechanism 58 is disposed between the connecting member 53A and the rod 541, which serves as a shaft. In the second embodiment described above, the swing absorption mechanism 59 includes a first swing absorption mechanism 591 and a second swing absorption mechanism 592. The first swing absorption mechanism 591 is disposed between the rod 544 and the first piston portion 542, and the second swing absorption mechanism 592 is disposed between the rod 544 and the second piston portion 543.

[0185] However, this is not the only possibility; the oscillating absorption mechanism may also be disposed between the inner walls of the first piston portion 542 and the first guide portion 552. For example, if the piston seal 5423 is not provided on the outer peripheral surface of the first piston portion 542, but a sealing member is provided on the inner wall of the first guide portion 552 to seal between the inner wall of the first guide portion 552 and the outer peripheral surface of the first piston portion 542, the oscillating absorption mechanism may also be disposed between the sealing member and the outer peripheral surface of the first piston portion 542.

[0186] Alternatively, for example, the swing absorption mechanism may be disposed between the outer peripheral surface of the first piston portion 542 and the piston seal 5423, or it may be disposed between the outer peripheral surface of the second piston portion 543 and the piston seal 5433.

[0187] In these cases, it can also achieve the same effect as the volumetric machinery 5A and 5B of the first and second embodiments described above.

[0188] In the first embodiment described above, the first swing absorption mechanism 581 and the second swing absorption mechanism 582 of the swing absorption mechanism 58 are respectively composed of sliding bearings or rolling bearings. In the second embodiment described above, the first swing absorption mechanism 591 and the second swing absorption mechanism 592 of the swing absorption mechanism 59 are respectively composed of sliding bearings or rolling bearings. However, it is not limited to this. As long as it is possible to allow the swing of one component relative to the other component about an axis along the +Y direction, the structure of the swing absorption mechanism can also be a structure other than sliding bearings and rolling bearings.

[0189] In the above embodiments, the shaft member 51 includes: a first shaft member 511, which is disposed relative to the sliding members 54A and 54B in the -X direction and rotates about a rotation axis Rx1 in the +X direction; and a second shaft member 512, which is disposed relative to the sliding members 54A and 54B in the +X direction and rotates about a rotation axis Rx2 in the +X direction. The rotating member 52 includes: a first rotating member 521, which is connected to the first shaft member 511 and rotates coaxially with the first shaft member 511; and a second rotating member 522, which is connected to the second shaft member 512 and rotates coaxially with the second shaft member 512. That is, the volumetric machines 5A and 5B include shaft members 511 and 512 and rotating members 521 and 522. However, it is not limited to this; the volumetric machines of this disclosure may include one shaft member or one rotating member. In this case, the compressor of this disclosure may also be configured to include one drive device.

[0190] For example, the compressor of this disclosure may also include a drive unit and a volumetric mechanism. The volumetric mechanism has a transmission part such as a gear that transmits the rotational force of a shaft component that rotates through the drive unit, and the transmission part causes two rotating parts (e.g., a first rotating part 521 and a second rotating part 522) to rotate. In this case, the manufacturing cost of the compressor can be reduced.

[0191] In the above embodiments, sliding members 54A and 54B include a first piston portion 542 disposed at the +Y direction end of rods 541 and 544 and a second piston portion 543 disposed at the -Y direction end of rods 541 and 544. However, this is not a limitation, and sliding members 54A and 54B may also be configured to include one piston portion. For example, if sliding members 54A and 54B do not include the second piston portion 543, the volumetric mechanism may not include the second guide portion 554, the second pressure chamber S4, and the second working chamber S5.

[0192] In the above embodiments, the volumetric machines 5A and 5B, together with the drive unit 4, constitute compressors 3A and 3B. However, this disclosure is not limited to this; it can also be applied to volumetric machines used in internal combustion engines such as engines. That is, the volumetric machines of this disclosure are not limited to constituting compressors.

[0193] In the above embodiments, compressors 3A and 3B compress the working fluid that undergoes a phase change between the liquid and gas phases. However, the gas compressed by the compressors of this disclosure is not limited to the working fluid as a refrigerant. Furthermore, compressors 3A and 3B constitute the cooling device 2. However, this is not a limitation; the compressors of this disclosure may also constitute other devices or be used independently.

[0194] [Summary of this disclosure]

[0195] The following is a summary published in this note.

[0196] The first aspect of the volumetric machine disclosed herein includes: a cylindrical guide portion; a rotating member that rotates about a rotation axis; a connecting member connected to the rotating member and movable in a direction intersecting the rotation axis by the rotation of the rotating member; a sliding member having a shaft portion along the intersecting direction and a piston portion disposed at the end of the shaft portion in the intersecting direction and disposed within the guide portion, the sliding member being connected to the connecting member and sliding in the intersecting direction; a pressure chamber disposed within the guide portion, the volume of which changes by the sliding of the piston portion; and a swing absorption mechanism that absorbs the swing motion of the piston portion about the axis along the intersecting direction, the swing absorption mechanism being disposed in one of the following positions: between the connecting member and the sliding member, between the shaft portion and the piston portion, and between the piston portion and the inner wall of the guide portion.

[0197] With this structure, during the operation of a volumetric machine, the oscillation of the piston relative to the inner wall of the guide can be suppressed. This suppresses wear between the piston and the inner wall of the guide caused by the piston oscillating relative to the inner wall of the guide about an axis along the aforementioned intersecting directions. Therefore, a longer service life for the volumetric machine can be achieved.

[0198] In the first embodiment described above, the swing absorption mechanism may also be disposed between the connecting member and the shaft, allowing one of the connecting member and the shaft to swing relative to the other about an axis along the intersecting direction.

[0199] With this structure, even when the connecting member moves in the aforementioned intersecting direction along with the rotation of the rotating member and oscillates around an axis centered along that intersecting direction, the shaft connected to the connecting member can slide in that intersecting direction, and the oscillation of the shaft and the connecting member together can be suppressed. Therefore, the oscillation of the piston portion located at the end of the shaft portion along the inner wall of the guide portion around an axis centered along the aforementioned intersecting direction can be suppressed. Thus, wear generated between the piston portion and the inner wall of the guide portion can be suppressed, enabling a longer service life for the volumetric machinery.

[0200] In the first embodiment described above, the swing absorption mechanism may also be disposed between the shaft portion and the piston portion, allowing a component of one of the shaft portion and the piston portion to swing relative to the other component about an axis along the intersecting direction.

[0201] With this structure, even when the shaft and connecting parts swing together around an axis centered along the aforementioned intersecting direction, the swinging of the piston and shaft together around the axis centered along that intersecting direction can be suppressed. Therefore, wear generated between the inner walls of the piston and the guide can be suppressed, and the lifespan of the volumetric machinery can be extended.

[0202] In the first embodiment described above, the oscillating absorption mechanism may also be composed of a sliding bearing and a rolling bearing.

[0203] Based on this structure, an oscillating absorption mechanism can be easily constructed. Therefore, it is possible to suppress the structural complexity of volumetric machinery.

[0204] In the first embodiment described above, it is also possible to have a shaft component that rotates the rotating component around the rotation axis. The shaft component has: a first shaft component; and a second shaft component, which is disposed on the side opposite to the first shaft component via the sliding component and rotates in the opposite direction to the rotation direction of the first shaft component. The rotating component has: a first rotating component, which is connected to the first shaft component and the connecting component and rotates coaxially with the first shaft component; and a second rotating component, which is connected to the second shaft component and the connecting component and rotates coaxially with the second shaft component.

[0205] With this structure, by having a first rotating component connected to a first shaft component and a second rotating component connected to a second shaft component rotate in opposite directions, the vibration of the volumetric machine when sliding with the sliding component connected to the connecting component of the first rotating component and the second rotating component can be reduced.

[0206] Furthermore, in the structure of such a volumetric machine, the connecting member reciprocates in the aforementioned intersecting directions and oscillates about an axis along the aforementioned intersecting directions due to the rotation of the first and second rotating components in opposite directions. The volumetric machine of this first embodiment has an oscillation absorption mechanism, thus suppressing the oscillation of the piston portion relative to the inner wall of the guide portion. Therefore, wear generated between the piston portion and the inner wall of the guide portion can be suppressed, enabling a longer lifespan for the volumetric machine.

[0207] The compressor of the second aspect of this disclosure includes a volumetric machine of the first aspect described above and a drive device for rotating the rotating component, wherein the piston compresses the gas flowing into the pressure chamber.

[0208] Based on this structure, the same effect as the volumetric machinery of the first type described above can be achieved. This allows for a longer lifespan for the compressor.

[0209] The third-party cooling device disclosed herein comprises: a compressor of the second type described above, which compresses a gaseous working fluid; a condensation section, which condenses the gaseous working fluid compressed by the compressor into a liquid working fluid; an expansion section, which depressurizes the liquid working fluid condensed by the condensation section, thereby changing the state of the working fluid to a mixture of liquid and gas phases; and an evaporation section, which is connected to the object being cooled in a manner capable of heat transfer, and uses the heat transferred from the object being cooled to change the working fluid flowing from the expansion section into a gaseous working fluid, and discharges the changed gaseous working fluid to the compressor.

[0210] Based on this structure, it can achieve the same effect as the compressor of the second type mentioned above.

[0211] The electronic device of the fourth aspect disclosed herein includes the aforementioned third-party cooling device.

[0212] Based on this structure, it can achieve the same effect as the aforementioned third-party cooling device. Therefore, it can stably cool the object within the electronic device, thus extending the lifespan of the electronic device.

Claims

1. A volumetric machine, characterized in that, The volumetric machinery includes: The housing has a cylindrical guide portion with a pressure chamber disposed inside; A sliding member having a shaft portion extending in a first direction and a piston portion disposed at an end of the shaft portion and configured within the guide portion, the sliding member sliding along the first direction; A connecting component, which is connected to the sliding component, extends in a second direction perpendicular to the first direction; A first rotating component is connected to one end of the connecting component and rotates around a first rotation axis along the second direction; as well as The oscillating absorption mechanism absorbs the oscillating motion of the piston portion centered on an axis along the first direction. The swing absorption mechanism is disposed between the connecting member and the sliding member in the second direction.

2. The volumetric machinery according to claim 1, characterized in that, The oscillation absorption mechanism is disposed between the connecting member and the shaft portion of the sliding member, allowing one of the connecting member and the shaft portion to oscillate relative to the other about an axis along the first direction.

3. The volumetric machinery according to claim 2, characterized in that, The oscillating absorption mechanism is composed of either a sliding bearing or a rolling bearing.

4. The volumetric machinery according to claim 1, characterized in that, Another swing absorption mechanism is provided between the shaft portion and the piston portion, which allows one of the shaft portion and the piston portion to swing relative to the other about an axis along the first direction.

5. The volumetric machinery according to claim 4, characterized in that, The other oscillating absorption mechanism is composed of either a sliding bearing or a rolling bearing.

6. The volumetric machinery according to any one of claims 1 to 5, characterized in that, The volumetric machinery also features: The second rotating component is connected to the other end of the connecting component and rotates around a second rotation axis along the second direction; A first shaft component is connected to the first rotating component and rotates about the first rotating axis of the first rotating component as the center; as well as The second shaft component is connected to the second rotating component and rotates about the second rotation axis of the second rotating component. The second rotating component and the second shaft component are disposed on the opposite side of the first rotating component and the first shaft component, separated by the sliding component, and rotate in a direction opposite to the rotation direction of the first rotating component and the first shaft component.

7. A compressor, characterized in that, The compressor includes: The volumetric machinery according to any one of claims 1 to 6; and A drive device that causes the first rotating component to rotate. The piston compresses the gas flowing into the pressure chamber.

8. A cooling device, characterized in that, The cooling device includes: The compressor of claim 7 compresses the gaseous working fluid; A condenser section that condenses the working fluid in the gaseous phase after being compressed by the compressor into the working fluid in the liquid phase; An expansion section depressurizes the working fluid, which is a liquid phase condensed by the condensation section, so that the state of the working fluid changes to a mixed state of liquid and gas phases; as well as An evaporation section is connected to the object being cooled in a manner that enables heat transfer. The heat transferred from the object being cooled causes the working fluid flowing from the expansion section to change into a gaseous phase of the working fluid, and the changed gaseous working fluid is discharged to the compressor.

9. An electronic device, characterized in that, The electronic device includes the cooling device as described in claim 8.

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