Refrigerator

Abstract

The utility model provides a kind of freezer, which is provided with a refrigeration cycle in which refrigerant circulates, a valve for adjusting the flow of refrigerant, and a mounting member for mounting the valve on the main body of the freezer, wherein the mounting member has a first surface capable of mounting the valve, a second surface spaced apart from the first surface and capable of being mounted on the main body of the freezer, and a connecting portion connecting the first surface and the second surface, and the first surface is orthogonal to a first direction, the second surface is orthogonal to a second direction, and the connecting portion has a third surface orthogonal to a third direction, and a portion of the first surface, the connecting portion and the second surface is spaced apart from the main body of the freezer.

Description

Technical Field

[0001] This utility model relates to cold storage. Background Technology

[0002] Patent Document 1 discloses an L-shaped support member for supporting a three-way valve and an mounting member for mounting the support member onto the main body of a cold storage unit. The mounting member of Patent Document 1 is shaped like a metal plate that has been bent multiple times, and has a surface for mounting the three-way valve and a surface for being fixed to the machine compartment with screws. In the mounting member of Patent Document 1, only two mutually orthogonal surfaces are provided.

[0003] Patent Document 2 discloses a mounting component for installing a refrigerant flow path switching valve on the main body of a cold storage unit. The mounting component of Patent Document 2 consists of a valve support for supporting the refrigerant flow path switching valve, a mounting portion for mounting the mounting component to the machine compartment, and a vibration damping portion connecting the valve support and the mounting portion. The mounting portion of Patent Document 2 is approximately L-shaped, with a surface shape along two mutually orthogonal directions.

[0004] Patent Document 3 discloses a mounting component for mounting a three-way valve on the main body of a cold storage unit. The mounting component of Patent Document 3 has a first side on which the three-way valve is mounted, a second side on the main body of the cold storage unit, and a connecting portion connecting the first and second sides. In the mounting component of Patent Document 3, the first and second sides are oriented in a direction orthogonal to each other.

[0005] Patent Document 4 discloses a mounting component for mounting a flow valve on the main body of a cold storage unit. The mounting component of Patent Document 4 has a first surface on which the flow valve is mounted, a second surface mounted on the wall of the machine compartment, and a connecting portion connecting the first and second surfaces. In the mounting component of Patent Document 4, the first and second surfaces are formed parallel to each other, and multiple parallel surfaces are provided.

[0006] Existing technical documents

[0007] Patent documents

[0008] Patent Document 1: Japanese Patent Application Publication No. 2012-83078

[0009] Patent Document 2: Japanese Patent No. 6514974

[0010] Patent Document 3: Japanese Patent No. 7126041

[0011] Patent Document 4: Japanese Patent No. 7261954 Utility Model Content

[0012] Technical problems to be solved by utility models

[0013] This utility model provides a cold storage unit with a simple installation structure, which makes it easy to attenuate the vibration generated by the valve in three dimensions and to control the noise.

[0014] Methods for solving problems

[0015] The cold storage of this utility model includes: a refrigeration cycle in which refrigerant circulates; a valve that is driven by a motor to regulate the flow of refrigerant; and a mounting component for mounting the valve on the main body of the cold storage, the mounting component having: a first surface capable of mounting the valve; a second surface spaced apart from the first surface and capable of being mounted on the main body of the cold storage; and a connecting portion connecting the first surface and the second surface, wherein the first surface is orthogonal to the first direction, the second surface is orthogonal to the second direction, the connecting portion has a third surface orthogonal to the third direction, and a portion of the first surface, the connecting portion, and the second surface are spaced apart from the main body of the cold storage.

[0016] In the above structure, the connecting part may also have a U-shaped part.

[0017] In the above structure, the second surface may also have: a mounting surface that can be installed on the main body of the cold storage and an absorption surface that is spaced apart from the main body of the cold storage and connected to the connecting part. The mounting surface may also be located on the opposite side of the outer end of the first direction of the connecting part with the first surface as a reference.

[0018] In the above structure, the natural vibration frequency of the mounting component may also be different from an integer multiple of the pulse frequency of the valve's motor.

[0019] In the above structure, the motor shaft of the valve can also extend along the second direction.

[0020] In the above structure, the inflow portion into which refrigerant flows into the valve and the outflow portion from which refrigerant flows out of the valve can also extend along the second direction.

[0021] In the above structure, the second direction can also be the vertical direction.

[0022] Effects of the utility model

[0023] The cold storage unit of this invention has a simple installation structure, which makes it easy to attenuate the vibration generated by the valve in three dimensions and to control the noise. Attached Figure Description

[0024] Figure 1 This is a perspective view of the cold storage in Implementation Method 1 from the front side.

[0025] Figure 2 This is a perspective view of the cold storage in Implementation Method 1, viewed from the rear side.

[0026] Figure 3 This is a longitudinal cross-sectional view of the cold storage in Implementation Method 1.

[0027] Figure 4 This is a circuit diagram of the refrigeration cycle in Implementation Method 1.

[0028] Figure 5 This is a plan view showing the state of the machine room cover being removed from the cold storage in Embodiment 1.

[0029] Figure 6 This is a perspective view of the state of the machine room cover removed from the cold storage in Embodiment 1, viewed from the left rear.

[0030] Figure 7 This is a perspective view showing the three-way valve and its support in Embodiment 1 as viewed from the right rear.

[0031] Figure 8 This is a perspective view showing the three-way valve and its support in Embodiment 1 as viewed from the left front.

[0032] Figure 9 This is a plan view showing the three-way valve and the three-way valve bracket of Embodiment 1.

[0033] Figure 10 yes Figure 1 XX-line sectional view.

[0034] Figure 11 Observing from the left rear and Figure 10 A three-dimensional view of the corresponding cross-section. Detailed Implementation

[0035] (Knowledge, etc., that forms the basis of this utility model)

[0036] In conceiving this technical solution, the prior art uses mounting components to install valves such as three-way valves and flow valves onto the main body of a cold storage unit. Here, since the valves operate via a motor, the vibration generated by the motor's rotation is transmitted to the main body of the cold storage unit through the mounting components, easily causing noise. Therefore, in the prior art, since this vibration is a two-dimensional plane vibration around the motor shaft, two orthogonal planes are provided on the mounting components to attenuate the two-dimensional plane vibration during vibration transmission, thereby preventing the vibration from being transmitted to the main body of the cold storage unit. However, due to factors such as refrigerant flow direction, pressure fluctuations, and gravity, axial vibration along the motor shaft sometimes occurs in the valves. In other words, the inventor of this invention discovered that the existing technology has insufficient countermeasures for vibrations in non-two-dimensional directions. To solve this technical problem, this invention constitutes the subject matter of this utility model.

[0037] Therefore, this utility model provides a cold storage unit with a simple installation structure, which makes it easy to attenuate the vibration generated by the valve in three dimensions and to control the noise.

[0038] The embodiments will now be described in detail with reference to the accompanying drawings. However, sometimes unnecessary detailed descriptions will be omitted. For example, detailed descriptions of known matters or repeated descriptions of practically identical structures may be omitted.

[0039] Furthermore, the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present invention, and are not intended to limit the scope of the present invention.

[0040] (Implementation Method 1)

[0041] Next, use Figures 1 to 11 Implementation method 1 is described below.

[0042] (1-1. Construction)

[0043] (1-1-1. The structure of a cold storage room)

[0044] Figure 1 This is a perspective view of the cold storage 1 of Embodiment 1 from the front side. Figure 2 This is a perspective view of the cold storage 1 of Embodiment 1 as viewed from the rear side. Figure 3 This is a longitudinal cross-sectional view of the cold storage 1 in Implementation Method 1.

[0045] In this instruction manual, the terms "front," "back," "left," and "right" for the refrigerator compartment 1 are used from the perspective of a user retrieving stored items from the refrigerator compartment 1. That is, the front side for the user corresponds to the front of the refrigerator compartment 1, and the back side for the user corresponds to the rear of the refrigerator compartment 1. Additionally, the right side for the user corresponds to the right side of the refrigerator compartment 1, and the left side for the user corresponds to the left side of the refrigerator compartment 1. Furthermore, when referring to the front of the refrigerator compartment 1, it is sometimes also called the front view. And when referring to the rear of the refrigerator compartment 1, it is sometimes also called the back view.

[0046] In the attached diagram, the front, rear, left, right, top, and bottom of the cold storage 1 are represented by the directions of arrows FR, RE, LE, RI, UP, and DO, respectively.

[0047] exist Figures 1-3 In the middle, cold storage 1 has an insulated enclosure 2. For example... Figure 3As shown, the insulated box 2 is mainly composed of an outer box (frame) 3 made of steel plate, an inner box 4 made of resin such as ABS (Acrylonitrile Butadiene Styrene), and a foamed insulation material 5 such as rigid polyurethane foam filled in the space between the outer box 3 and the inner box 4.

[0048] The insulated box 2 is insulated from the surroundings and is divided into multiple storage compartments.

[0049] A refrigerator compartment 6 is located at the top of the insulated enclosure 2. Below the refrigerator compartment 6, a switching compartment 7 and an ice-making compartment (not shown) are arranged side by side. The switching compartment 7 and the ice-making compartment are separated by an insulated wall. Below the switching compartment 7 and the ice-making compartment is a freezer compartment 9. Below the freezer compartment 9, at the bottom of the insulated enclosure 2, is a vegetable compartment 10.

[0050] The indoor temperature of the cold storage compartment 6 is usually set to 1℃~5℃.

[0051] The temperature of the switching chamber 7 is set to -18℃ to 5℃, allowing it to switch from the freezing temperature range to the refrigeration temperature range.

[0052] The temperature of the freezer compartment 9 is usually set to -22°C to -15°C, but in order to improve the freezing preservation condition, it is sometimes set to a low temperature of -30°C or -25°C.

[0053] The vegetable compartment 10 is set at the same temperature as or slightly higher than the refrigerator compartment 6, ranging from 2°C to 7°C.

[0054] The front opening of the refrigerator compartment 6 includes a pair of hinged refrigerator compartment doors 11 and 12 (see reference). Figure 1 The hinge 11a extending vertically from the left end of the left-side refrigerator door 11 (see reference). Figure 1 It rotates freely and is supported. The right-side refrigerator door 12 (see reference) Figure 1 The hinge 12a extending vertically from the right end of the (see reference) Figure 1 It is supported to rotate freely. When the refrigerator doors 11 and 12 are closed, a gasket is used to seal the space between the refrigerator doors 11 and 12 and the front opening of the refrigerator compartment 6.

[0055] A pull-out switchboard door 13 and a pull-out ice-making room door 14 are provided at the front openings of the switchboard 7 and the ice-making room (see reference). Figure 1 When the switching chamber door 13 is closed, a gasket seals the space between the switching chamber door 13 and the front opening of the switching chamber 7. When the ice-making chamber door 14 is closed, a gasket seals the space between the ice-making chamber door 14 and the front opening of the ice-making chamber. Furthermore, when the switching chamber door 13 is pulled forward, the switching chamber container 15 (see reference) is stored in the upper opening of the switching chamber 7. Figure 3 It was pulled out together with the switching room door 13.

[0056] A pull-out freezer door 16 is provided at the front opening of the freezer compartment 9. When the freezer door 16 is closed, a gasket seals the space between the freezer door 16 and the front opening of the freezer compartment 9.

[0057] The freezer compartment 9 includes an upper freezer compartment container section 17 and a lower freezer compartment container section 18, both with an upper opening. The upper freezer compartment container section 17 is positioned on the periphery of the upper opening of the lower freezer compartment container section 18. The upper freezer compartment container section 17 and the lower freezer compartment container section 18 are designed to slide out together in conjunction with the forward sliding action of the freezer compartment door 16.

[0058] In addition, a pull-out vegetable compartment door 19 is provided at the front opening of the lowest vegetable compartment 10. When the vegetable compartment door 19 is closed, a gasket seals the space between the vegetable compartment door 19 and the front opening of the vegetable compartment 10.

[0059] The vegetable compartment 10 includes a vegetable compartment container 20 with an opening at the top. The vegetable compartment container 20 is pulled out in conjunction with the pull-out action of the vegetable compartment door 19.

[0060] A refrigeration cooling chamber 21 for generating cold air is provided behind the refrigeration chamber 6. A refrigeration cooler (first evaporator) 22 constituting a refrigeration cycle is installed inside the refrigeration cooling chamber 21. In this embodiment, the refrigeration cooler 22 is a microchannel type cooler. Specifically, the refrigeration cooler 22 is a cooler composed of a flat tube (i.e., a flat porous tube) with multiple refrigerant flow paths formed internally and heat sinks.

[0061] A refrigeration cooling chamber 23 for generating cold air is provided below the refrigeration cooling chamber 21 and behind the freezer chamber 9. A refrigeration cooler (second evaporator) 24 constituting a refrigeration cycle is disposed within the refrigeration cooling chamber 23. In this embodiment, the refrigeration cooler 24 is, for example, a finned tube type cooler. Specifically, the refrigeration cooler 24 is a cooler composed of round tubes and flat fins.

[0062] A compressor 25 constituting the refrigeration cycle is arranged at the upper rear of the refrigerator compartment 6. Refrigerant is discharged from the compressor 25 and circulates in the refrigeration cycle. As a result, the refrigerant is cooled to a specified temperature and exchanges heat with the internal air of the refrigerator cooling compartment 21 and the freezer cooling compartment 23, respectively, generating cold air inside the refrigerator cooling compartment 21 and the freezer cooling compartment 23.

[0063] A refrigeration fan (first air supply fan) 26 is installed in the upper space inside the refrigeration cooling chamber 21. The refrigeration fan 26 is, for example, a centrifugal fan. Using the refrigeration fan 26, air that has undergone heat exchange in the refrigeration cooler 22 is supplied to the refrigeration chamber 6. In addition, the refrigeration cooling chamber 21 is connected to the freezing cooling chamber 23, and by opening and closing the closable damper, air that has undergone heat exchange in the refrigeration cooler 22 can be supplied to the freezing cooling chamber 23.

[0064] A refrigeration fan (second air supply fan) 27 is installed in the upper space inside the refrigeration cooling chamber 23. The refrigeration fan 27 is, for example, an axial fan. Using the refrigeration fan 27, air that has undergone heat exchange in the refrigeration cooler 24 is supplied to the switching chamber 7, the ice-making chamber, the freezing chamber 9, and the vegetable chamber 10.

[0065] (1-1-2. Structure of the Refrigeration Cycle)

[0066] Figure 4 This is a circuit diagram of the refrigeration cycle RC in Implementation Method 1.

[0067] The components of the refrigeration cycle RC in the cold storage 1 are connected via refrigerant piping. The refrigeration cycle RC includes a compressor 25. A radiator (condenser) 62 is connected downstream of the compressor 25. A dryer 64 for removing moisture from the refrigerant is connected downstream of the radiator 62. A three-way valve 70 is connected downstream of the dryer 64. The three-way valve 70 has a refrigerant inlet pipe (inlet section) 77, a first refrigerant outlet pipe (outlet section) 78, and a second refrigerant outlet pipe (outlet section) 79.

[0068] A refrigeration capillary tube (first capillary tube) 28 is connected downstream of the first refrigerant outlet pipe 78 of the three-way valve 70. A refrigeration cooler 22 is connected downstream of the refrigeration capillary tube 28.

[0069] A refrigeration capillary tube (second capillary tube) 29 is connected downstream of the second refrigerant outlet pipe 79 of the three-way valve 70. A refrigeration cooler 24 is connected downstream of the refrigeration capillary tube 29.

[0070] The refrigeration capillary tube 28 and refrigeration cooler 22 are connected in parallel with the freezing capillary tube 29 and freezing cooler 24. A connector mechanism 69 is provided downstream of the refrigeration cooler 22 and freezing cooler 24. A compressor 25 is connected downstream of the connector mechanism 69. This constitutes the refrigeration cycle RC of this embodiment. That is, the compressor 25, radiator 62, dryer 64, three-way valve 70, refrigeration capillary tube 28, refrigeration cooler 22, freezing capillary tube 29, freezing cooler 24, and connector mechanism 69 are connected through refrigerant piping to form the refrigeration cycle RC of this embodiment.

[0071] Based on the detection results of temperature sensors, the cold storage unit 1 controls the three-way valve 70 to adjust the flow rate of refrigerant flowing to the parallel-connected refrigeration cooler 22 and freezing cooler 24.

[0072] (1-1-3. Construction of the outer box)

[0073] like Figures 1-3 As shown, the outer box 3 covers the inner box 4. The outer box 3 has a slightly rectangular shape with an open front. The outer box 3 is composed of multiple cover components. Specifically, the outer box 3 has a back panel 31 extending vertically, a top cover 32 disposed on the top, bottom, left, and right sides of the back panel 31, a bottom panel 33, and a left side panel 34 (see reference). Figure 5 ), right side panel 35 (refer to) Figure 2 , Figure 5 ) and the lower rear panel 37.

[0074] The top cover 32 is composed of multiple cover components. Specifically, such as... Figure 1 , 2 As shown, the top cover 32 has a top plate 51, a base plate cover 52 covering the central part of the top plate 51, a machine room cover 53 covering the top plate 51 behind the base plate cover 52, and a pair of hinge covers 54 and 55 disposed on the front side of the top plate 51.

[0075] Figure 5 This is a top view (or plane view) showing the state of the machine room cover 53 being removed from the cold storage 1 of Embodiment 1. Figure 6 This is a perspective view of the state where the machine room cover 53 of the cold storage 1 in Embodiment 1 has been removed, viewed from the left rear.

[0076] like Figure 5 , Figure 6 As shown, the top plate 51 has a top surface 51a extending in the front-rear direction, a connecting portion 51b extending downward from the rear end of the top surface 51a, and a machine room support portion 51c extending rearward from the lower end of the connecting portion 51b.

[0077] The top plate 51 is connected to the left and right side panels 34 and 35 at its left and right ends. The top plate 51 is connected to the back panel 31 at its rear end. A cover-receiving stepped portion 51d is formed at the upper end of the connecting portion 51b, which is recessed downward in a stepped shape relative to the top surface 51a. In other words, the cover-receiving stepped portion 51d is formed by the recessed shape formed by the rear end of the top surface 51a and the upper end of the connecting portion 51b.

[0078] A pair of hinge openings 51a1 and 51a2 are formed at the front end of the top part 51a (see reference). Figure 5The left and right hinge openings 51a1 and 51a2 are cut into L-shapes when viewed from above. Inside the hinge openings 51a1 and 51a2, a hinge mechanism (not shown) including hinges 11a and 12a is arranged when viewed from above. The hinge openings 51a1 and 51a2 are covered by hinge covers 54 and 55 (see reference). Figure 1 , Figure 2 )cover.

[0079] A rectangular substrate housing mounting opening (not shown) extending vertically through the center of the top surface 51a in the left-right direction is formed. A substrate housing (not shown) for housing the control substrate (not shown) is mounted in this mounting opening. The substrate housing is covered from above by a rectangular substrate cover 52 extending horizontally. The control substrate controls the rotational speed of the compressor 25, or the rotational speed of the refrigeration fan 26, the freezing fan 27, etc., thereby controlling the internal temperature of the cold storage 1. In addition, the control substrate also controls the motor 74 of the three-way valve 70.

[0080] A machine room 42d is provided above the machine room support 51c. A compressor 25 and a radiator 62 (see reference) are supported on the machine room support 51c. Figure 4 The components forming the refrigeration cycle RC include a three-way valve 70, a dryer 64, and other components related to the refrigeration cycle RC, such as a radiator fan (not shown). Here, the radiator fan is supported on a rectangular support frame 63. The dryer 64 is supported at the rear of the support frame 63. The dryer 64 is supported transversely across the support frame 63 in the left-right direction.

[0081] The machine room support 51c is covered from above by the machine room cover 53 (see reference). Figure 10 The machine compartment cover 53 has a top portion 53a extending in the front-rear direction and a back portion 53b extending downward from the rear end of the top portion 53a. The front end of the top portion 53a of the machine compartment cover 53 is housed in a cover housing step portion 51d. The top portion 53a of the machine compartment cover 53 is fixed to the top plate 51 together with the base plate cover 52. In addition, the back portion 53b is connected to the upper end of the back panel 31.

[0082] (1-1-5. Construction of valves and mounting components)

[0083] Figure 7 This is a perspective view showing the three-way valve 70 and the three-way valve bracket 90 of Embodiment 1 as viewed from the right rear. Figure 8 This is a perspective view showing the three-way valve 70 and the three-way valve bracket 90 of Embodiment 1 as viewed from the left front. Figure 9 This is a top view showing the three-way valve 70 and the three-way valve bracket 90 according to Embodiment 1. Figures 7-9In this diagram, the Z-axis represents the axial direction of the motor shaft 74a, and the X-axis and Y-axis represent directions orthogonal to and mutually orthogonal to the Z-axis. In this embodiment, the Z-axis is consistent in the vertical direction, the X-axis is consistent in the horizontal direction, and the Y-axis is consistent in the front-back direction.

[0084] The three-way valve 70 is mounted on the insulated box 2, which is an example of the main body of the cold storage, via a three-way valve bracket (mounting component) 90. Specifically, the three-way valve 70 is mounted on the upper end of the connection 51b that forms the machine room 42d via the three-way valve bracket 90.

[0085] The three-way valve 70 includes: a generally cylindrical main body 71, a pipe connection 72 disposed on the lower part (axial side) of the main body 71, and a connector 73 disposed on the outer periphery of the main body 71.

[0086] The main body 71 is hollow. A motor 74 is housed inside the main body 71, and the motor 74 has a motor shaft 74a. Specifically, the motor 74 has a ring-shaped coil 75 (see reference). Figure 9 The coil 75 is housed within the main body 71. A phase-changing current flows through the coil 75. This generates a rotating magnetic field in the coil 75. A rotor 76, which functions as a magnet, is housed on the inner circumference of the coil 75 (see reference). Figure 9 The rotor 76 is driven to rotate by the rotating magnetic field generated by the coil 75. The rotation axis of the rotor 76 corresponds to the motor shaft 74a.

[0087] Supported on the pipe connection portion 72 are: a refrigerant inlet pipe 77 extending vertically, a first refrigerant outlet pipe 78 extending vertically, and a cylindrical second refrigerant outlet pipe 79 extending vertically. The refrigerant inlet pipe 77, the first refrigerant outlet pipe 78, and the second refrigerant outlet pipe 79 are open inside the main body portion 71. The refrigerant inlet pipe 77, the first refrigerant outlet pipe 78, and the second refrigerant outlet pipe 79 can communicate with each other via the interior of the main body portion 71.

[0088] A rotatably supported disc (not shown) is disposed between the openings of the refrigerant inlet pipe 77, the first refrigerant outlet pipe 78, and the second refrigerant outlet pipe 79 and the rotor 76. This disc has multiple fine holes that communicate with the first refrigerant outlet pipe 78 and the second refrigerant outlet pipe 79. Power is transmitted from the rotor 76 to the disc via gears (not shown). As the rotor 76 rotates, the disc rotates with the aid of gears, thus opening and closing the first and second refrigerant outlet pipes 78 and 79, allowing refrigerant flowing into the main body 71 from the refrigerant inlet pipe 77 to flow out from the first and second refrigerant outlet pipes 78 and 79.

[0089] A connector (not shown) for an electric power line is connected to the connector section 73. A coil 75 is connected to the connector section 73. Using the current input from the connector section 73, the current flows through the coil 75, generating a magnetic field, and the rotor 76 begins to rotate.

[0090] The motor 74 of this embodiment is composed of coil 75 and rotor 76.

[0091] The main body 71 is held by an irregularly shaped U-shaped outer contour portion 81. The outer contour portion 81 is supported in such a way that it clamps the outer periphery of the main body 71. A pressure plate 82 is fixed to the side (right side) of the outer contour portion 81. The pressure plate 82 has a fixing surface 82a extending axially along the motor shaft 74a (see reference). Figure 8 The fixing surface 82a is a rectangular plate extending in the front-to-back direction. A pair of fixing holes (not shown) are formed on the fixing surface 82a.

[0092] The three-way valve 70 of this embodiment is composed of a main body 71, a pipe connection part 72, a connector part 73, a motor 74, a refrigerant inlet pipe 77, a first refrigerant outlet pipe 78, a second refrigerant outlet pipe 79, a disc (not shown), an outer contour part 81, a support plate 82, etc.

[0093] like Figures 7-9 As shown, the three-way valve 70 is fixed on the three-way valve bracket 90.

[0094] The three-way valve bracket 90 is in the shape of a bent plate. The three-way valve bracket 90 is made of, for example, metal. The three-way valve bracket 90 of this embodiment is a stamped product formed by appropriately stamping a metal sheet.

[0095] The three-way valve bracket 90 has a base end face 91, an extension face 96, and a support face 99 that are orthogonal to the up-down direction, the front-back direction, and the left-right direction, respectively.

[0096] In this embodiment, orthogonality includes not only slight differences due to processing errors, assembly errors, etc., but also a state close to orthogonality. In other words, orthogonality basically refers to literal orthogonality, but in cases where it is not literal orthogonal due to processing errors or assembly errors, or in cases where it is close to orthogonal due to inclination relative to orthogonality, it can also include the meaning of approximate orthogonality. Specifically, the angle between surfaces is defined as 80 degrees or more and 90 degrees or less. If it is 80 degrees or more and 90 degrees or less, it is easy to expect a damping effect of vibration in different orthogonal directions. In addition, the terms parallel, horizontal, and vertical are also used in the same way. That is, the terms parallel, horizontal, and vertical not only include slight differences due to processing errors, assembly errors, etc., but also the meaning of approximate parallel, approximate horizontal, and approximate vertical states, respectively.

[0097] The three-way valve bracket 90 has a generally flat base end face (second face) 91 orthogonal to the vertical direction (second direction). The base end face 91 extends in the horizontal direction along the cover receiving step portion 51d. The base end face 91 has a mounting face (mounting face) 92 and a stepped face (absorption face, part of the second face) 93 that forms a step relative to the mounting face 92.

[0098] The mounting surface 92 is a flat plate orthogonal to the vertical direction. A fixing hole 92a extending through the thickness direction is formed on the mounting surface 92.

[0099] The stepped surface 93 is a flat plate orthogonal to the vertical direction. Viewed from above, the stepped surface 93 is approximately L-shaped. Specifically, the stepped surface 93 has a straight section 93a extending integrally from the mounting surface 92 and a curved section 93b curving from the straight section 93a toward the three-way valve 70. A right-angled cutout 93c is formed at the junction of the rear edge of the straight section 93a and the right edge of the curved section 93b.

[0100] A connecting portion 94 is supported at the rear end of the bend 93b on the three-way valve 70 side of the stepped surface 93. The connecting portion 94 has a connecting bend 95 that bends downward from the bend 93b, an extension surface (third surface) 96 that extends downward from the lower end of the connecting bend 95, a U-shaped bend 97 that extends from the side edge (lead edge) of the extension surface 96 toward the three-way valve 70 side, and a connecting bend 98 that bends rearward from the U-shaped bend 97.

[0101] The connecting bend 95 is a plate with the same width and thickness as the bend 93b. The connecting bend 95 bends further back and downward.

[0102] The extended face 96 is generally flat and orthogonal to the front-back direction (third direction). A bulge 96a is formed in the center of the extended face 96, bulging backward. A curved edge 96b is formed on the left side edge of the extended face 96, curving downward and to the left.

[0103] A U-shaped bend 97 is formed on the lower left side of the extended face 96. The U-shaped bend 97 is plate-shaped with thickness in the front-back or left-right direction. The U-shaped bend 97 is shown in top view (see reference). Figure 9 The U-shaped bend 97 has a straight portion 97a extending to the left from the extended portion 96, a bend 97b extending in a semi-circular arc from the front end (left end) of the straight portion 97a to the rear, and a straight portion 97c extending parallel to the straight portion 97a from the front end (rear end, right end) of the bend 97b. The width and thickness of the U-shaped bend 97 are fixed.

[0104] The connecting bend 98 is a plate with the same width and thickness as the U-shaped bend 97. The connecting bend 98 bends further to the right and backward.

[0105] A support surface (first surface) 99 extending in the front-rear direction is formed at the rear end of the connecting bend 98. The support surface 99 is plate-shaped with the same width and thickness as the connecting bend 98. The support surface 99 is a flat plate orthogonal to the left-right direction (first direction). A pair of fastening portions 99a are formed on the support surface 99. A screw (fastening component) 83 for fixing the three-way valve 70 is fastened to the fastening portion 99a.

[0106] That is, the support plate 82 of the three-way valve 70 is arranged opposite to the left side of the support surface 99. At this time, a ring-shaped rubber 84 is arranged between the support plate 82 and the support surface 99 of the three-way valve 70. A screw 83 is inserted into the support plate 82 of the three-way valve 70 from the side of the main body 71. The screw 83 is fastened to the fastening part 99a of the support surface 99.

[0107] Therefore, in this embodiment, the base end face 91 is orthogonal to the axial direction of the motor shaft 74a. In other words, the base end face 91 is an XY plane orthogonal to the Z-axis. Furthermore, the extension face 96 is orthogonal to the direction orthogonal to the axial direction of the motor shaft 74a. In other words, the extension face 96 is a ZX plane orthogonal to the Y-axis. Additionally, the support face 99 is orthogonal to the direction orthogonal to the axial direction of the motor shaft 74a, but in a different direction from the extension face 96. In other words, the support face 99 is a YZ plane orthogonal to the X-axis. The rubber 84 suppresses vibrations generated by the three-way valve 70.

[0108] (1-1-6. Configuration and structure of valves and mounting components)

[0109] Figure 10 yes Figure 1 XX-line sectional view. Figure 11 Observing from the left rear and Figure 10 A three-dimensional view of the corresponding cross-section. In Figure 10 , Figure 11 In order to facilitate observation, dotted patterns are marked on the three-way valve 70 and the three-way valve bracket 90.

[0110] A three-way valve bracket 90, on which the three-way valve 70 is fixed, is disposed in the machine chamber 42d. The base end face 91 of the three-way valve bracket 90 is disposed on the top of the cover receiving step portion 51d. A screw 88 extending in the vertical direction is inserted from above into the fixing hole 92a of the base end face 91. The screw 88 is fastened to the cover receiving step portion 51d. Thus, the three-way valve 70 and the three-way valve bracket 90 are disposed in the machine chamber 42d.

[0111] At this time, the motor shaft 74a extends in the vertical direction. Therefore, the refrigerant inlet pipe 77, the first refrigerant outlet pipe 78, and the second refrigerant outlet pipe 79 extend in the vertical direction. Thus, refrigerant flows in and out of the three-way valve 70 in the vertical direction.

[0112] Additionally, on the base end face 91 of the three-way valve bracket 90, the mounting face 92 abuts against the upper surface of the cover receiving step portion 51d, and a gap S1 is provided between the step face 93 and the cover receiving step portion 51d (see reference). Figure 10 The distance between the stepped surface 93 and the cover-receiving stepped portion 51d is such that the stepped surface 93 is prone to vibration in the vertical direction. Furthermore, the stepped surface 93 does not contact the machine room cover 53.

[0113] Furthermore, in the connecting portion 94, the entire connecting portion 94 is separated from the connecting portion 51b and the machine room support portion 51c that form the machine room 42d by utilizing the curved portion 93b of the base end face 91. Therefore, the entire connecting portion 94 is prone to vibration when it is separated from the connecting portion 51b and the machine room support portion 51c.

[0114] In particular, the extended face 96 is provided at a distance S2 from the connecting portion 51b to the rear (see reference). Figure 10 Therefore, the extended face 96, when spaced apart from the connecting portion 51b, is prone to vibration in the front-to-back direction. Additionally, the U-shaped bend 97 is prone to vibration in both the front-to-back and left-to-right directions.

[0115] Furthermore, since the support surface 99 is spaced apart from the connecting part 51b and the machine room support part 51c, it is prone to vibration in the left and right directions.

[0116] Therefore, in the three-way valve bracket 90, the flat stepped surface 93, the extended surface 96, and the support surface 99 can vibrate in three-dimensional directions: up and down, left and right, and front and back.

[0117] (1-2. Operation, etc.)

[0118] Next, the operation of the cold storage 1 in Implementation Method 1 will be described.

[0119] In this embodiment, the compressor 25 drives the refrigerant to circulate in the refrigeration cycle RC, exchanging heat with the internal air of the refrigeration cooling chamber 21 and the freezing cooling chamber 23 through the refrigeration cooler 22 and the freezing cooler 24, thereby generating cold air. The refrigeration fan 26 and the freezing fan 27 drive the air that has undergone heat exchange in the refrigeration cooling chamber 21 and the freezing cooling chamber 23 to the refrigeration chamber 6, the switching chamber 7, the ice-making chamber, the freezing chamber 9, and the vegetable compartment 10 through cold air ducts. At this time, the cold storage 1 regulates and controls the amount of cold air delivered to cool each compartment to a specified temperature.

[0120] At this time, vibration is generated in the three-way valve 70 that constitutes the refrigeration cycle RC, either by the drive of the motor 74 or by the flow of refrigerant.

[0121] That is, when the motor 74 drives the three-way valve 70, vibration of the motor shaft 74a around the axis is generated, and horizontal vibration, i.e., front-back or left-right vibration, is easily generated on the three-way valve 70.

[0122] In addition, in the three-way valve 70, the axial vibration of the motor shaft 74a is also generated due to the weight of the three-way valve 70, the flow rate variation caused by the inflow and outflow of refrigerant relative to the three-way valve 70, and the pressure variation.

[0123] These three-dimensional vibrations are transmitted to the three-way valve bracket 90, and then through the three-way valve bracket 90 to the cover housing step 51d, which serves as the wall of the machine room 42d.

[0124] In this embodiment, the support surface 99, the extension surface 96, and the base surface 91 are pairwise orthogonal XY planes, ZX planes, and YZ planes. Therefore, the support surface 99, the extension surface 96, and the base surface 91 flex in different directions. That is, the support surface 99 and the extension surface 96 readily absorb horizontal vibrations generated by the three-way valve 70, while the base surface 91 readily absorbs vertical vibrations. Therefore, even if three-dimensional vibrations are generated in the three-way valve 80, they are easily attenuated by the three-way valve support 90, making it difficult for the vibrations of the three-way valve 70 to be transmitted to the cold storage 1.

[0125] In particular, the connecting part 94 has a U-shaped bend 97, which extends the distance from the three-way valve 70 to the cover storage step 51d compared to the case where the supporting surface 99 and the base end surface 91 are directly connected without the connecting part 94. This allows the vibration generated in the three-way valve 70 to be attenuated before the vibration of the three-way valve 70 is transmitted to the cold storage 1.

[0126] Furthermore, in this embodiment, the surfaces with different orientations—the support surface 99, the extension surface 96, and the base surface 91—are essentially formed at one location. In other words, the support surface 99, the extension surface 96, and the base surface 91 are not formed in separate locations. Therefore, in the three-way valve bracket 90, the support surface 99, the extension surface 96, and the base surface 91 are connected by a U-shaped bend 97 or two connecting bends 95 and 98, making it easier to achieve the necessary minimal structure with a flat plate shape. Thus, a three-way valve bracket 90 with a simple shape can be easily formed.

[0127] Furthermore, in this embodiment, a three-way valve 70 is connected to the refrigeration cooler 22, which is fixed to the insulated housing 2, via a refrigeration capillary tube 28. Similarly, a three-way valve 70 is connected to the refrigeration cooler 24, which is fixed to the insulated housing 2, via a refrigeration capillary tube 29. Therefore, even if vibration occurs in the three-way valve 70 and is transmitted through the refrigerant piping, the vibration is easily attenuated in the refrigeration capillary tube 28 or the refrigeration capillary tube 29. Consequently, the vibration of the three-way valve 70 is unlikely to be transmitted to the refrigeration cooler 22 and the refrigeration cooler 24, which are fixed to the insulated housing 2.

[0128] (1-3. Effects, etc.)

[0129] As described above, in this embodiment, the cold storage 1 includes a refrigeration cycle RC in which refrigerant circulates, a three-way valve 70 that operates by being driven by a motor to regulate the flow of refrigerant, and a three-way valve bracket 90 that mounts the three-way valve 70 on the insulated housing 2. The three-way valve bracket 90 has: a support surface 99 for mounting the three-way valve 70, a base end surface 91 spaced apart from the support surface 99 and capable of being mounted on the insulated housing 2, and a connecting portion 94 connecting the support surface 99 and the base end surface 91. In mutually orthogonal left-right, up-down, and left-right directions, the support surface 99 is orthogonal to the left-right direction, the base end surface 91 is orthogonal to the up-down direction, and the connecting portion 94 has an extension portion 96 orthogonal to the front-back direction. The support surface 99, the connecting portion 94, and the stepped portion 93, which is part of the base end surface 91, are spaced apart from the insulated housing 2.

[0130] According to this structure, since the mutually orthogonal support surface 99, the extension surface 96 of the connecting portion 94, and the stepped surface 93, which is part of the base end surface 91, remain separated from the insulation box 2, each surface is prone to vibration, and vibration is also prone to occur in the orthogonal direction of each surface. Therefore, when the three-dimensional vibration generated in the three-way valve 70 is transmitted from the support surface 99 to the base end surface 91, it is more likely to vibrate and be transmitted in different directions to the support surface 99, the extension surface 96, and the stepped surface 93 of the base end surface 91. Therefore, even if the vibration of the three-way valve 70 is transmitted to the insulation box 2, it is easily transmitted to the insulation box 2 in a state of three-dimensional attenuation. In addition, the structure in which the support surface 99 and the base end surface 91 are connected by the connecting portion 94 does not have an unnecessary parallel surface. Therefore, it is possible to provide a cold storage 1 in which the three-way valve bracket 90 has a simple structure, easily attenuates the three-dimensional vibration generated by the three-way valve 70, and easily controls noise.

[0131] As described in this embodiment, the connecting portion 94 may also have a U-shaped bend 97.

[0132] According to this structure, since the length of the connection 94, which serves as the transmission path for vibration, can be ensured while bringing the support surface 99 and the base end surface 91 close together, it is possible to easily attenuate vibrations while miniaturizing the three-way valve bracket 90.

[0133] In addition, as described in this embodiment, the base end face 91 includes a mounting face 92 that can be mounted on the heat insulation box 2 and a stepped face 93 that is spaced apart from the heat insulation box 2 and connected to the connecting portion 94. The mounting face 92 may also be located on the opposite side of the left and right opposite outer ends of the connecting portion 94, i.e., the curved portion 97b, with the support surface 99 as a reference.

[0134] According to this structure, the length of the connection 94 for vibration transmission can be ensured while bringing the support surface 99 and the base end surface 91 close together. Therefore, it is possible to easily attenuate vibration while miniaturizing the three-way valve bracket 90.

[0135] In addition, as described in this embodiment, the natural vibration frequency of the three-way valve bracket 90 may also be different from an integer multiple of the pulse frequency of the motor 74 of the three-way valve 70.

[0136] This structure can suppress resonance of the mounting components caused by the valve's operation.

[0137] Additionally, as described in this embodiment, the motor shaft 74a of the three-way valve 70 can also extend in the vertical direction.

[0138] According to this structure, the vibration of the motor shaft 74a around the shaft in the vertical direction can be transmitted to the base end face 91 after being attenuated by the support surface 99 and the connecting part 94.

[0139] In addition, as described in this embodiment, the refrigerant inlet pipe 77 of the three-way valve 70 and the first refrigerant outlet pipe 78 and the second refrigerant outlet pipe 79 extending from the three-way valve 70 can also extend in the vertical direction.

[0140] According to this structure, the vibration caused by the flow of refrigerant can be attenuated at the base end face 91.

[0141] Additionally, as described in this embodiment, the vertical direction can also be along the vertical direction.

[0142] According to this structure, the vibration caused by the weight of the three-way valve bracket 90 can be attenuated at the base end face 91.

[0143] (Other implementation methods)

[0144] Furthermore, Embodiment 1 is described as a technical example disclosed in this application. However, the technology of this utility model is not limited thereto, and can also be applied to embodiments after modifications, substitutions, additions, omissions, etc.

[0145] In Embodiment 1, the structure of a cold storage 1 including a refrigerator compartment 6, a vegetable compartment 10, etc. is described. However, the refrigerator compartment 6, the vegetable compartment 10, etc., may be omitted, and the cold storage may only have a freezer compartment 9 as a storage room.

[0146] In Embodiment 1, a three-way valve 70 is shown as an example of a valve, and a structure with a first refrigerant outlet pipe 78 and a second refrigerant outlet pipe 79 is shown as the outlet portion. However, as a valve, it does not have to be a three-way valve 70, as long as it is a valve that operates by being driven by a motor and regulates the flow of refrigerant. Therefore, there may only be one outlet portion. Specifically, the valve may also be a flow regulating valve, a four-way valve, etc.

[0147] In Embodiment 1, a structure was described in which the first direction corresponds to the left-right direction, the second direction corresponds to the up-down direction, and the third direction corresponds to the front-back direction. However, the first direction to the third direction are not limited to the directions in Embodiment 1. Preferably, any one of the first direction to the third direction is along the vertical direction, but as long as it is a three-dimensional orthogonal direction, the directions of the first direction to the third direction are arbitrary.

[0148] (Postscript)

[0149] Based on the description of the above embodiments, the following technology is disclosed.

[0150] (Technology 1)

[0151] A cold storage unit includes: a refrigeration cycle in which refrigerant circulates; a valve operated by a motor to regulate the flow of refrigerant; and a mounting component for mounting the valve onto a body of the cold storage unit, the mounting component having: a first surface capable of mounting the valve; a second surface spaced apart from the first surface and capable of being mounted onto the body of the cold storage unit; and a connecting portion connecting the first surface and the second surface, wherein the first surface is orthogonal to the first direction, the second surface is orthogonal to the second direction, and the connecting portion has a third surface orthogonal to the third direction, and a portion of the first surface, the connecting portion, and the second surface are spaced apart from the body of the cold storage unit.

[0152] According to this structure, since the first orthogonal surface, the third surface of the connecting part, and a portion of the second surface are separated from the main body of the cold storage, each surface is prone to vibration, particularly in the orthogonal directions of each surface. Therefore, when three-dimensional vibrations generated in the valve are transmitted from the first surface to the second surface, they are more likely to vibrate and be transmitted in different directions for the first, third, and second surfaces, respectively. Thus, even if the valve vibrations are transmitted to the main body of the cold storage, they are easily transmitted to the main body in a state of three-dimensional attenuation. Furthermore, the structure where the first and second surfaces are connected by the connecting part eliminates the need for unnecessarily parallel surfaces. Therefore, it is possible to provide a cold storage unit with a simple installation structure that easily attenuates three-dimensional vibrations generated by the valve and easily controls noise.

[0153] (Technology 2)

[0154] The cold storage warehouse as described in Technique 1 is characterized in that,

[0155] The connecting part has a U-shaped portion.

[0156] According to this structure, the length of the connection portion, which serves as the transmission path for vibration, can be ensured while bringing the first and second surfaces close together. Therefore, it is possible to easily attenuate vibrations while miniaturizing the mounting components.

[0157] (Technology 3)

[0158] The cold storage warehouse as described in technique 1 or 2 is characterized in that,

[0159] The second surface has a mounting surface that can be installed on the main body of the cold storage and an absorption surface that is spaced apart from the main body of the cold storage and connected to the connecting portion. The mounting surface is located on the opposite side of the outer end of the first direction of the connecting portion, with the first surface as a reference.

[0160] According to this structure, the length of the connection for vibration transmission can be ensured while bringing the first and second surfaces close together. Therefore, it is possible to easily attenuate vibrations while miniaturizing the mounting components.

[0161] (Technology 4)

[0162] The cold storage warehouse as described in any one of techniques 1 to 3 is characterized in that...

[0163] The inherent vibration frequency of the mounting component is not an integer multiple of the pulse frequency of the valve's motor.

[0164] This structure can suppress resonance of the mounting components caused by the operation of the valve.

[0165] (Technology 5)

[0166] The cold storage warehouse as described in any one of techniques 1 to 4 is characterized in that,

[0167] The motor shaft of the valve extends along the second direction.

[0168] According to this structure, the vibration of the motor shaft in the second direction around the shaft can be transmitted to the second surface after being attenuated by the first surface and the connecting part.

[0169] (Technology 6)

[0170] The cold storage warehouse as described in any one of techniques 1 to 5 is characterized in that,

[0171] The refrigerant flows into the valve and out of the valve along the second direction.

[0172] This structure allows vibrations caused by refrigerant flow to be attenuated on the second surface.

[0173] (Technology 7)

[0174] The cold storage warehouse as described in any one of techniques 1 to 6 is characterized in that...

[0175] The second direction is the vertical direction.

[0176] According to this structure, vibrations caused by the weight of the mounting components can be attenuated on the second surface.

[0177] Industrial availability

[0178] As described above, the cold storage of this utility model is applicable to cold storage with valves installed on the main body of the cold storage. The valves are driven by a motor to regulate the flow of refrigerant.

[0179] Explanation of reference numerals in the attached figures

[0180] 1 Cold storage

[0181] 2. Insulated enclosure (insulated enclosure / main body of cold storage)

[0182] 3 outer boxes

[0183] 4 Inner Box

[0184] 5. Foamed thermal insulation materials (foamed thermal insulation components / foamed thermal insulation materials)

[0185] 6 Refrigeration compartments

[0186] 7 Switching Room

[0187] 9 Freezer compartments

[0188] 10 Vegetable Room

[0189] 11. Refrigerator door

[0190] 11a hinge

[0191] 12 Refrigerator door

[0192] 12a hinge

[0193] 13 Switching Room Door

[0194] 14 Ice-making room door

[0195] 15 Switching Chamber Container Section

[0196] 16 Freezer door

[0197] 17 Upper Freezer Container Section

[0198] 18 Lower freezer compartment container section

[0199] 19 Vegetable Room Door

[0200] 20 Vegetable Room Container Department

[0201] 21 Refrigeration cooling chamber

[0202] 22. Refrigeration cooler (first evaporator)

[0203] 23 Refrigeration cooling compartment

[0204] 24. Refrigeration cooler (second evaporator)

[0205] 25 compressor

[0206] 26 Refrigeration Fan

[0207] 27 Refrigeration Fan

[0208] 28. Refrigeration Capillary Tube (First Capillary Tube)

[0209] 29. Capillary tube for freezing (second capillary tube)

[0210] 31 Rear Panel

[0211] 32 Top Cover

[0212] 33 Bottom Panel

[0213] 34 side panels

[0214] 35 side panel

[0215] 37 Lower back panel

[0216] 42d Machine Room

[0217] 51 Top Plate

[0218] 51a Top Face

[0219] 51a1 hinge opening

[0220] 51a2 hinge opening

[0221] 51b Connecting part

[0222] 51c Mechanical Room Support Section

[0223] 51d lid storage stepped section

[0224] 52 substrate cover

[0225] 53 Machinery Room Cover

[0226] 53a Top Face

[0227] 53b back section

[0228] 54 Hinged Cover

[0229] 55 Hinged Cover

[0230] 62 radiator

[0231] 63 support frame

[0232] 64 Dryer

[0233] 69 Connector Mechanism

[0234] 70 Three-way Valve (Valve)

[0235] 71 Main Body

[0236] 72 pipe connection part

[0237] 73 Connector Section

[0238] 74 motor

[0239] 74a motor shaft

[0240] 75 coil

[0241] 76 rotor

[0242] 77 Refrigerant inlet pipe (inlet section)

[0243] 78 First refrigerant outlet pipe (outlet section)

[0244] 79 Second refrigerant outlet pipe (outlet section)

[0245] 80 three-way valve

[0246] 81 Outer contour section

[0247] 82 support plate

[0248] 82a fixed surface

[0249] 83 screws

[0250] 84 Rubber

[0251] 88 screws

[0252] 90 Three-way Valve Bracket (Mounting Component)

[0253] 91 Base end face (second face)

[0254] 92 Mounting face (mounting surface)

[0255] 92a fixing hole

[0256] 93-step face (absorption surface, part of the second surface)

[0257] 93a Straight Section

[0258] 93b Bend

[0259] 93c cut

[0260] 94 Connecting Part

[0261] 95 connecting bend

[0262] 96. Extended face (third side)

[0263] 96a Drum Extrusion Section

[0264] 96b curved edge

[0265] 97. The U-shaped bend (U-shaped part)

[0266] 97a Straight Section

[0267] 97b Bend

[0268] 97c straight section

[0269] 98 Connecting Bend

[0270] 99 Support Surface (First Surface)

[0271] 99a Fastener

[0272] RC refrigeration cycle

[0273] S1 gap

[0274] S2 gap.

Claims

1. A cold storage warehouse, characterized in that, include: A refrigeration cycle in which the refrigerant circulates; A valve that regulates the flow of refrigerant by being driven by an electric motor; and Mounting components for installing the valve onto the main body of the cold storage. The mounting component has: a first surface capable of mounting the valve; a second surface spaced apart from the first surface and capable of being mounted on the main body of the cold storage; and a connecting portion connecting the first surface and the second surface. Regarding the first, second, and third mutually orthogonal directions The first face is orthogonal to the first direction. The second face is orthogonal to the second direction. The connecting portion has a third surface orthogonal to the third direction. The first surface, the connecting portion, and a portion of the second surface are spaced apart from the main body of the cold storage.

2. The cold storage warehouse as described in claim 1, characterized in that, The connecting part has a U-shaped portion.

3. The cold storage warehouse as described in claim 1, characterized in that, The second surface has a mounting surface that can be installed on the main body of the cold storage and an absorption surface that is spaced apart from the main body of the cold storage and connected to the connecting part. The mounting surface is located on the opposite side of the outer end of the first direction of the connection portion, with the first surface as a reference.

4. The cold storage warehouse as described in any one of claims 1 to 3, characterized in that, The inherent vibration frequency of the mounting component is not an integer multiple of the pulse frequency of the valve's motor.

5. The cold storage warehouse as described in any one of claims 1 to 3, characterized in that, The motor shaft of the valve extends along the second direction.

6. The cold storage warehouse as described in any one of claims 1 to 3, characterized in that, The inlet portion into which refrigerant flows into the valve and the outlet portion from which refrigerant flows out of the valve extend along the second direction.

7. The cold storage warehouse as described in any one of claims 1 to 3, characterized in that, The second direction is the vertical direction.

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