Refrigerant circulation device

Abstract

A refrigerant circulation device is provided with: a primary flow path which is a flow path for a primary refrigerant; a secondary flow path, which is a flow path for a secondary refrigerant; a heat exchanger connected to the primary flow path and the secondary flow path; the pump is connected with the secondary flow path; and a frame body, wherein the frame body is provided with a storage area. The storage region expands in a first direction and a second direction that intersect each other, and has a longer dimension in the first direction than in the second direction. The housing houses the primary flow path, the secondary flow path, the heat exchanger, and the pump in a housing area. The entire heat exchanger is positioned closer to one side in the second direction than the pump.

Description

Technical Field

[0001] The invention relates to a refrigeration cycle device. Background Art

[0002] The refrigeration cycle device includes a heat exchanger. The heat exchanger is accommodated in a frame. (For example, refer to Patent Document 1). Prior art literature Patent Literature

[0003] Patent document 1: US2022 / 0248570A1 Summary of the invention

[0004] By increasing the size of the heat exchanger, the cooling performance of the refrigeration cycle device can be improved. However, in addition to the heat exchanger, the housing of the refrigeration cycle device also contains various components such as a pump that circulates the refrigerant. Therefore, it is sometimes difficult to increase the size of the heat exchanger.

[0005] An object of the present invention is to improve the cooling performance of a refrigeration cycle device.

[0006] An exemplary refrigerant cycle device of the present invention comprises: a primary flow path, which is a flow path of a primary refrigerant; a secondary flow path, which is a flow path of a secondary refrigerant; a heat exchanger, which is connected to the primary flow path and the secondary flow path; a pump, which is connected to the secondary flow path; and a frame, which has a storage area. The storage area extends in a first direction and a second direction that intersect each other, and has a long dimension in the first direction compared to the second direction. The frame stores the primary flow path, the secondary flow path, the heat exchanger and the pump in the storage area. The heat exchanger as a whole is located on the second side of the pump.

[0007] According to the exemplary refrigerant cycle device of the present invention, the cooling performance of the refrigerant cycle device can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of a cooling system including a refrigeration cycle device according to an embodiment. Figure 2 This is a perspective view of the refrigeration cycle device according to the embodiment as viewed from above. Figure 3 This is a perspective view of the refrigeration cycle device according to the embodiment as viewed from the bottom. Figure 4 It is a perspective view showing the interior of the refrigeration cycle device according to the embodiment. Figure 5 It is a plan view showing a primary flow path of the refrigeration cycle device according to the embodiment. Figure 6It is a plan view showing a secondary flow path (inlet side) of the refrigeration cycle device according to the embodiment. Figure 7 It is a plan view showing the secondary flow path (outlet side) of the refrigeration cycle device according to the embodiment. Figure 8 It is a perspective view of a heat exchanger of the refrigeration cycle device according to the embodiment. Fig. 9 It is a perspective view of a pump of the refrigeration cycle device according to the embodiment. Fig.10 It is a perspective view of a heat exchanger and a tank of the refrigeration cycle device according to the embodiment. Fig.11 It is a diagram showing the positional relationship between a heat exchanger and a pump in the refrigeration cycle device according to the embodiment. Fig.12 This is a plan view of the refrigeration cycle device according to the embodiment as viewed from one side in the first direction. Fig.13 This is a perspective view of the primary flow path and the secondary flow path of the CDU according to the embodiment as viewed from the side opposite to the heat exchanger side. DETAILED DESCRIPTION

[0009] Below, refer to the attached Figures 1 to 12 , exemplary embodiments of the present invention are described.

[0010] In this specification, for ease of understanding, the structure and configuration position of each component are described using the XYZ coordinate system. In the following description, the direction along the X-axis is referred to as the X-direction, the side to which the arrow of the X-axis points is referred to as the X-direction side, and the opposite side is referred to as the X-direction other side. The direction along the Y-axis is referred to as the Y-direction, the side to which the arrow of the Y-axis points is referred to as the Y-direction side, and the opposite side is referred to as the Y-direction other side. The direction along the Z-axis is referred to as the Z-direction, the side to which the arrow of the Z-axis points is referred to as the Z-direction side, and the opposite side is referred to as the Z-direction other side.

[0011] The X direction is equivalent to the "first direction", the Y direction is equivalent to the "second direction", and the Z direction is equivalent to the "third direction". For example, the X direction and the Y direction are horizontal directions. The X direction is the front-back direction, and the Y direction is the left-right direction. The Z direction is the up-down direction, and one side of the Z direction is the upper side, and the other side of the Z direction is the lower side.

[0012] In the following description, each of the X direction, the Y direction, and the Z direction includes an error range allowed in the technical field to which the present invention belongs (for example, a range of about ±45°). As an example, "connecting in the X direction" includes a case where it is connected in the X direction in a strict sense, and a case where it is connected from a direction within a range of about ±45° relative to the X direction. As another example, "extending along the X direction" includes a case where it is extended in the X direction in a strict sense, and a case where it is extended in a direction deviated from the X direction by a range of about ±45°.

[0013] In the following description, the term "intersection" includes the case where lines, planes, or lines and planes intersect at right angles. In addition, the term "intersection" includes the case where lines, planes, or lines and planes do not intersect at right angles within a micro-difference range. Micro-difference includes tolerance and error.

[0014] <1. Cooling system structure> Figure 1 1 is a schematic diagram of a cooling system 1000 including a CDU 100 according to an embodiment. In addition, "CDU" is an abbreviation of "Coolant Distribution Unit".

[0015] The cooling system 1000 cools the heat source HS. For example, the heat source HS is a rack server or a blade server, etc., which is arranged inside the server rack SR. In addition, the heat source HS may also be an electronic device different from the server, such as a projector, a personal computer, and a display. In addition, the heat source HS may also be an electronic component such as a CPU, an electrolytic capacitor, a power semiconductor module, and a printed circuit board.

[0016] The cooling system 1000 includes a CDU 100. The CDU 100 corresponds to a "refrigeration cycle device". The CDU 100 is arranged inside the server rack SR. However, the present invention is not limited thereto. The CDU 100 may be arranged outside the server rack SR.

[0017] CDU100 sucks the primary refrigerant into the interior of CDU100, and pressurizes the primary refrigerant to the outside of CDU100. In addition, CDU100 sucks the secondary refrigerant into the interior of CDU100, and pressurizes the secondary refrigerant to the outside of CDU100. In addition, no pump on the primary refrigerant side is provided inside CDU100, and therefore, the suction and pressurization of the primary refrigerant in CDU100 are performed by an external pump. CDU100 performs heat exchange between the primary refrigerant and the secondary refrigerant. For example, refrigerant liquids such as antifreeze and pure water can be used as the primary refrigerant and the secondary refrigerant. As antifreeze that can be used as a refrigerant, there are ethylene glycol aqueous solution and propylene glycol aqueous solution, etc. In addition, the types of the primary refrigerant and the secondary refrigerant may be the same as or different from each other. In addition, at least one of the primary refrigerant and the secondary refrigerant may also be a gas refrigerant.

[0018] CDU100 is connected to flow path FL11 and flow path FL12. CDU100 sucks in the primary refrigerant flowing in flow path FL11 and presses the primary refrigerant to flow path FL12. In addition, CDU100 is connected to flow path FL21 and flow path FL22. CDU100 presses the secondary refrigerant to flow path FL21 and sucks in the secondary refrigerant flowing in flow path FL22.

[0019] A low-temperature primary refrigerant flows into the CDU 100. In addition, a high-temperature secondary refrigerant flows into the CDU 100. Heat is exchanged between the low-temperature primary refrigerant and the high-temperature secondary refrigerant inside the CDU 100. As a result, the high-temperature secondary refrigerant is cooled.

[0020] The cooling system 1000 includes a cooling device 1001. The cooling device 1001 cools the primary refrigerant. The cooling device 1001 may be a device installed indoors, or may be an outdoor device such as a cooling tower. The cooling device 1001 is connected to a flow path FL11. The cooling device 1001 presses the primary refrigerant to the CDU 100 via the flow path FL11. In addition, the cooling device 1001 is connected to a flow path FL12. The cooling device 1001 inhales the primary refrigerant from the CDU 100 via the flow path FL12.

[0021] The cooling system 1000 includes a cold plate 1002. The cold plate 1002 is connected to the flow path FL21 and the flow path FL22. The cold plate 1002 has an internal flow path. The internal flow path of the cold plate 1002 extends from a connection point with the flow path FL21 to a connection point with the flow path FL22. That is, the secondary refrigerant flows inside the cold plate 1002.

[0022] The cold plate 1002 is in thermal contact with the heat source HS. The cold plate 1002 may be in direct contact with the heat source HS or may be in indirect contact with the heat source HS via a heat transfer member such as a heat transfer sheet.

[0023] By bringing the cold plate 1002 into thermal contact with the heat source HS, the heat energy of the heat source HS is transferred to the secondary refrigerant flowing inside the cold plate 1002. As a result, the heat source HS is cooled. The secondary refrigerant used for cooling the heat source HS flows into the CDU 100 via the flow path FL22.

[0024] In addition, the number of heat sources HS installed in the server rack SR is not particularly limited. The number of heat sources HS installed in the server rack SR may be multiple or one.

[0025] When there are multiple heat sources HS installed in the server rack SR, the server rack SR is provided with the same number of cold plates 1002 as the number of heat sources HS installed. And, each heat source HS is in thermal contact with one cold plate 1002 .

[0026] When a plurality of heat sources HS are installed in the server rack SR, for example, a part of the flow path FL21 is constituted by the distribution manifold 2001 , and a part of the flow path FL22 is constituted by the collection manifold 2002 .

[0027] The distribution manifold 2001 has one inlet and a plurality of outlets. The secondary refrigerant flows from the CDU 100 into the inlet of the distribution manifold. The secondary refrigerant flowing from the inlet of the distribution manifold flows out from each outlet of the distribution manifold 2001. Each outlet of the distribution manifold 2001 is connected to a different cold plate 1002. Thus, the secondary refrigerant flows into each cold plate 1002.

[0028] The collecting manifold 2002 has a plurality of inlets and one outlet. Each inlet of the collecting manifold 2002 is connected to a different cold plate 1002. The secondary refrigerant flowing out of each cold plate 1002 flows into the collecting manifold 2002 through each inlet of the collecting manifold 2002. The outlet of the collecting manifold 2002 is connected to the CDU 100. Thus, the secondary refrigerant flowing out of each cold plate 1002 flows into the CDU 100.

[0029] Figure 1 , the number of cold plates 1002 (ie, the number of heat sources HS) is three. Figure 1 In the figure, the direction of flow of each refrigerant is shown by the direction of the arrow.

[0030] <2. Structural elements of CDU> Figure 2 This is a perspective view of the CDU 100 according to the embodiment as viewed from above. Figure 3 This is a perspective view of the CDU 100 according to the embodiment as viewed from the bottom. Figure 4 It is a perspective view showing the interior of CDU 100 according to the embodiment. Figure 5 1 is a plan view showing the primary flow path 1 of the CDU 100 according to the embodiment. Figure 6 1 is a plan view showing the secondary flow path 2 (inlet side) of the CDU 100 according to the embodiment. Figure 7 1 is a plan view showing the secondary flow path 2 (outlet side) of the CDU 100 according to the embodiment. Figure 8 It is a perspective view of the heat exchanger 3 of the CDU 100 according to the embodiment. Fig. 9 It is a perspective view of the pump 4 of the CDU 100 according to the embodiment. Fig.10 It is a perspective view of the heat exchanger 3 and the tank 5 of the CDU 100 according to the embodiment.

[0031] in addition, Figure 5 to Figure 7 This is a plan view of the interior of the CDU 100 as viewed from one side (ie, the upper side) in the Z direction. Figure 5 to Figure 7 In the figure, a part of the components is omitted, and the refrigerant flow path is shown by a dotted arrow. The direction of the arrow is the flow direction of the refrigerant.

[0032] In addition, Figure 5 In order to clarify the primary flow path 1, other refrigerant flow paths are omitted. Figure 6 In order to clarify the inlet side of the secondary flow path 2, other refrigerant flow paths are omitted. Figure 7 In order to clarify the outlet side of the secondary flow path 2, other refrigerant flow paths are omitted.

[0033] The CDU 100 includes a primary flow path 1 and a secondary flow path 2. The primary flow path 1 is a flow path for a primary refrigerant, and the secondary flow path 2 is a flow path for a secondary refrigerant.

[0034] The CDU 100 includes a heat exchanger 3. The heat exchanger 3 is connected to the primary flow path 1 and the secondary flow path 2. The primary refrigerant and the secondary refrigerant flow into the heat exchanger 3 and flow out from the heat exchanger 3. The heat exchanger 3 performs heat exchange between the primary refrigerant and the secondary refrigerant therein. The heat exchange method of the heat exchanger 3 is, for example, a plate type.

[0035] CDU100 is provided with a pump 4. Pump 4 is connected to the secondary flow path 2. Pump 4 has an internal flow path. By driving pump 4, the secondary refrigerant is sucked into the interior of pump 4, and the secondary refrigerant is pressure-fed from the internal flow path of pump 4. Thus, the secondary refrigerant circulates between CDU100 and cold plate 1002. The number of pumps 4 is not particularly limited. For example, the number of pumps 4 is two. That is, CDU100 is provided with a plurality of pumps 4.

[0036] The CDU 100 includes a tank 5. The tank 5 stores a refrigerant used as a secondary refrigerant. The tank 5 is connected to the secondary flow path 2. The tank 5 can supply the refrigerant to the secondary flow path 2.

[0037] The CDU 100 includes a control circuit 6 and a power supply unit 7 . Furthermore, the CDU 100 includes a touch screen 8 .

[0038] The CDU 100 includes a housing 9 . The housing 9 has a storage area 90 . The housing 9 stores the primary flow path 1 , the secondary flow path 2 , the heat exchanger 3 , the pump 4 , the tank 5 , the control circuit 6 , the power supply unit 7 , and the touch screen 8 in the storage area 90 .

[0039] <2-1. Frame> When viewed from the Z direction, the storage area 90 is in a generally rectangular shape with the X direction as the long side direction and the Y direction as the short side direction. That is, the storage area 90 extends in the X direction and the Y direction intersecting each other, and has a longer dimension in the X direction than in the Y direction. In addition, the storage area 90 has the Z direction as the depth direction. The width (depth) of the storage area 90 in the Z direction is smaller than the width of the storage area 90 in the X direction and the Y direction.

[0040] The housing 9 includes a plurality of plates 91 to 96. The plurality of plates 91 to 96 are made of sheet metal, for example. The plurality of plates 91 to 96 surround the storage area 90. That is, the housing 9 includes an area surrounded by the plurality of plates 91 to 96 as the storage area 90.

[0041] The plates 91 and 92 are arranged opposite to each other with the storage area 90 sandwiched therebetween in the X direction. The plate 91 is arranged on one side in the X direction. The plate 92 is arranged on the other side in the X direction. That is, the plate 91 divides the storage area 90 by covering the storage area 90 from one side in the X direction. The plate 92 divides the storage area 90 by covering the storage area 90 from the other side in the X direction. The plate 91 and the plate 92 define the width of the storage area 90 in the X direction. In the following description, the plate 91 is sometimes referred to as the back plate 91 and the plate 92 is sometimes referred to as the front plate 92 to distinguish them from other plates constituting the frame 9.

[0042] The plates 93 and 94 are arranged opposite to each other with the storage area 90 sandwiched therebetween in the Y direction. The plate 93 is arranged on one side in the Y direction. The plate 94 is arranged on the other side in the Y direction. That is, the plate 93 divides the storage area 90 by covering the storage area 90 from one side in the Y direction. The plate 94 divides the storage area 90 by covering the storage area 90 from the other side in the Y direction. The plates 93 and 94 define the width of the storage area 90 in the Y direction.

[0043] The plates 95 and 96 are arranged opposite to each other with the storage area 90 sandwiched therebetween in the Z direction. The plate 95 is arranged on one side in the Z direction. The plate 96 is arranged on the other side in the Z direction. That is, the plate 95 divides the storage area 90 by covering the storage area 90 from one side in the Z direction. The plate 96 divides the storage area 90 by covering the storage area 90 from the other side in the Z direction. The plates 95 and 96 define the width of the storage area 90 in the Z direction. In addition, the plate 95 is a cover that covers the storage area 90 from the upper side. The plate 96 covers the bottom of the storage area 90 from the lower side.

[0044] The housing 9 has a housing primary inlet 91A. The housing primary inlet 91A is connected to the primary flow path 1 and is an inlet for the primary refrigerant to flow into the CDU 100. The housing 9 has a housing primary outlet 91B. The housing primary outlet 91B is connected to the primary flow path 1 and is an outlet for the primary refrigerant to flow out of the CDU 100.

[0045] The housing 9 has a housing secondary inlet 92A. The housing secondary inlet 92A is connected to the secondary flow path 2 and is an inlet for the secondary refrigerant to flow into the CDU 100. The housing 9 has a housing secondary outlet 92B. The housing secondary outlet 92B is connected to the secondary flow path 2 and is an outlet for the secondary refrigerant to flow out of the CDU 100.

[0046] The frame primary inlet 91A is connected to the flow path FL11 extending from the cooling device 1001. The frame primary outlet 91B is connected to the flow path FL12 extending from the cooling device 1001. The primary refrigerant flows from the cooling device 1001 into the CDU 100 through the frame primary inlet 91A. The primary refrigerant flows out from the CDU 100 into the cooling device 1001 through the frame primary outlet 91B.

[0047] In addition, the frame secondary inlet 92A is connected to the flow path FL22 extending from the cold plate 1002. The frame secondary outlet 92B is connected to the flow path FL21 extending from the cold plate 1002. Thus, the secondary refrigerant flows from the cold plate 1002 into the CDU 100 through the frame secondary inlet 92A. The secondary refrigerant flows out from the inside of the CDU 100 to the cold plate 1002 through the frame secondary outlet 92B.

[0048] The frame primary inlet 91A, the frame primary outlet 91B, the frame secondary inlet 92A, and the frame secondary outlet 92B are arranged on the back plate 91. For example, the back plate 91 has four openings penetrating along the X direction. The cylindrical parts with the X direction as the axial direction protrude from the above four openings to the side closer to the X direction than the back plate 91. The frame 9 has four cylindrical parts protruding from the back plate 91 to one side in the X direction as the frame primary inlet 91A, the frame primary outlet 91B, the frame secondary inlet 92A, and the frame secondary outlet 92B.

[0049] <2-2. Primary flow path> like Figure 5 As shown, the primary flow path 1 is composed of a manifold 1M and flow tubes 11 to 13. The internal space of the manifold 1M is a flow path for the primary refrigerant, and the internal spaces of the flow tubes 11 to 13 are also flow paths for the primary refrigerant.

[0050] The manifold 1M has one inlet (reference numerals omitted) and two outlets (reference numerals omitted). The primary refrigerant flowing in from the inlet of the manifold 1M branches inside the manifold 1M and flows out from the two outlets of the manifold 1M.

[0051] The flow pipe 11 is a straight pipe extending linearly in the X direction. The end of the flow pipe 11 on one side in the X direction is connected to the primary inlet 91A of the frame. The end of the flow pipe 11 on the other side in the X direction is connected to the inlet of the manifold 1M. The flow pipe 11 allows the primary refrigerant flowing in from the primary inlet 91A of the frame (i.e., the cooling device 1001) to flow into the inlet of the manifold 1M.

[0052] The flow tube 12 has a straight tube portion and a bent portion. The straight tube portion of the flow tube 12 extends linearly along the X direction. One side of the straight tube portion of the flow tube 12 in the X direction is connected to one of the outflow ports of the manifold 1M. The other side of the straight tube portion of the flow tube 12 in the X direction is connected to the bent portion of the flow tube 12. The bent portion of the flow tube 12 is a bend that bends the flow direction of the primary refrigerant from the X direction to the Y direction by 90°. The bent portion of the flow tube 12 is connected to the heat exchanger 3 in the Y direction. The bent portion of the flow tube 12 causes the primary refrigerant flowing in the straight tube portion of the flow tube 12 in the X direction to bend 90° in the Y direction and flow into the heat exchanger 3.

[0053] The flow pipe 13 is a curved pipe that bends the flow direction of the primary refrigerant by 90° from the Y direction to the X direction. The flow pipe 13 is connected to the heat exchanger 3 along the Y direction and connected to the frame primary outlet 91B along the X direction. The flow pipe 13 bends the primary refrigerant flowing from the heat exchanger 3 along the Y direction by 90° toward the X direction and flows out to the frame primary outlet 91B.

[0054] The primary flow passage 1 further includes a bypass pipe 14. Of the two outflow ports of the manifold 1M, an outflow port different from the outflow port connected to the flow pipe 12 is connected to the flow pipe 13 via the bypass pipe 14. The bypass pipe 14 allows the primary refrigerant to flow from the manifold 1M to the flow pipe 13.

[0055] In addition, the flow pipe 12 is provided with a control valve V1 for controlling the flow rate of the primary refrigerant in the flow pipe 12. The bypass pipe 14 is provided with a control valve V2 for controlling the flow rate of the primary refrigerant in the bypass pipe 14. In this structure, by controlling the opening degrees of the control valves V1 and V2, the inflow amount of the primary refrigerant into the heat exchanger 3 can be adjusted.

[0056] <2-3. Secondary flow path> Secondary flow path 2 is divided into inlet side (refer to Figure 6 ) and outlet side (refer to Figure 7 ). The inlet side of the secondary flow path 2 guides the secondary refrigerant from the frame secondary inlet 92A to the heat exchanger 3, and guides the secondary refrigerant from the heat exchanger 3 to the pump 4. The outlet side of the secondary flow path 2 guides the secondary refrigerant from the pump 4 to the frame secondary outlet 92B. The secondary flow path 2 is described below in terms of the inlet side and the outlet side.

[0057] like Figure 6 As shown, the inlet side of the secondary flow path 2 is composed of a manifold 2MA and flow tubes 21 to 23. The internal space of the manifold 2MA is a flow path for the secondary refrigerant, and the internal spaces of the flow tubes 21 to 23 are also flow paths for the secondary refrigerant.

[0058] The manifold 2MA has one inlet (symbol omitted) and a plurality of outlets (symbol omitted). The number of the outlets of the manifold 2MA is the same as the number of pumps 4 provided. When the number of pumps 4 provided is two, the number of the outlets of the manifold 2MA is two. The secondary refrigerant flowing in from one inlet of the manifold 2MA branches inside the manifold 2MA and flows out from the plurality of outlets of the manifold 2MA, respectively.

[0059] The flow pipe 21 is a curved pipe that bends the flow direction of the secondary refrigerant by 90° from the X direction to the Y direction. The flow pipe 21 is connected to the frame secondary inlet 92A in the X direction and is connected to the heat exchanger 3 in the Y direction. The flow pipe 21 bends the secondary refrigerant flowing in from the frame secondary inlet 92A in the X direction by 90° in the Y direction and flows into the heat exchanger 3.

[0060] The flow tube 22 is L-shaped. In other words, the flow tube 22 is a crank tube. The end of the flow tube 22 on the upstream side in the refrigerant flow direction is connected to the heat exchanger 3 in the Y direction. The end of the flow tube 22 on the downstream side in the refrigerant flow direction is connected to the inlet of the manifold 2MA in the Z direction. The flow tube 22 allows the secondary refrigerant flowing from the heat exchanger 3 to flow in the X direction, and then bends the secondary refrigerant 90° in the Y direction and flows into the inlet of the manifold 2MA.

[0061] One flow tube 23 is allocated to each pump 4. Each flow tube 23 is a straight tube extending in the X direction. The end of each flow tube 23 on one side in the X direction is connected to different outlets of the manifold 2MA. The end of each flow tube 23 on the other side in the X direction is connected to the corresponding pump 4. Each flow tube 23 allows the secondary refrigerant to flow from the manifold 2MA into the corresponding pump 4.

[0062] like Figure 7As shown, the outlet side of the secondary flow path 2 is composed of a manifold 2MB, a flow path tube 24, and a flow path tube 25. The manifold 2MB has a plurality of inlets (symbols omitted) and an outlet (symbols omitted). The number of inlets of the manifold 2MB is the same as the number of pumps 4 provided. When the number of pumps 4 provided is two, the number of inlets of the manifold 2MB is two. The secondary refrigerants flowing in from the plurality of inlets of the manifold 2MB merge inside the manifold 2MB and flow out from an outlet of the manifold 2MB.

[0063] A flow tube 24 is allocated to each pump 4. Each flow tube 24 is a straight tube extending linearly in the X direction. The end of each flow tube 24 on one side in the X direction is connected to different inflow ports of the manifold 2MB. The end of each flow tube 24 on the other side in the X direction is connected to the corresponding pump 4. Each flow tube 24 allows the secondary refrigerant to flow from the corresponding pump 4 into the manifold 2MB.

[0064] The flow tube 25 is a straight tube extending linearly in the X direction. The end of the flow tube 25 on one side in the X direction is connected to the secondary outlet 92B of the frame. The end of the flow tube 25 on the other side in the X direction is connected to the outlet of the manifold 2MB. The flow tube 25 allows the secondary refrigerant to flow from the outlet of the manifold 2MB to the secondary outlet 92B of the frame. As a result, the secondary refrigerant flows out from the secondary outlet 92B of the frame, and the secondary refrigerant flows into the cooling device 1001.

[0065] <2-4. Heat exchanger> The heat exchanger 3 has a plurality of heat transfer plates (not shown) stacked in the Y direction. Each heat transfer plate has a plate thickness in the Y direction. Each heat transfer plate has a substantially rectangular shape with the X direction as the long side direction and the Z direction as the short side direction.

[0066] like Figure 8 As shown, the heat exchanger 3 has a HEX frame 30. In addition, "HEX" is an abbreviation of "HEAT EXCHANGER". The HEX frame 30 supports a stack composed of a plurality of heat transfer plates. The HEX frame 30 may be a component including a pair of cover plates that clamp the stack composed of a plurality of heat transfer plates in the Y direction. The HEX frame 30 is a roughly rectangular parallelepiped having six outer surfaces. The HEX frame 30 has a pair of outer surfaces parallel to the XY plane, a pair of outer surfaces parallel to the YZ plane, and a pair of outer surfaces parallel to the ZX plane. The HEX frame 30 has the X direction as the long side direction.

[0067] The heat exchanger 3 has a HEX primary inlet 31A, a HEX primary outlet 31B, a HEX secondary inlet 32A, and a HEX secondary outlet 32B. The HEX primary inlet 31A is connected to the primary flow path 1, and is the inlet for the primary refrigerant to flow into the heat exchanger 3. The HEX primary outlet 31B is connected to the primary flow path 1, and is the outlet for the primary refrigerant from the heat exchanger 3. The HEX secondary inlet 32A is connected to the secondary flow path 2, and is the inlet for the secondary refrigerant to flow into the heat exchanger 3. The HEX secondary outlet 32B is connected to the secondary flow path 2, and is the outlet for the secondary refrigerant from the heat exchanger 3.

[0068] The HEX primary inlet 31A, the HEX primary outlet 31B, the HEX secondary inlet 32A, and the HEX secondary outlet 32B are arranged on the flow path connection surface 300. The flow path connection surface 300 is one of the outer surfaces of the HEX housing 30. That is, the HEX housing 30 has the flow path connection surface 300 on which the HEX primary inlet 31A, the HEX primary outlet 31B, the HEX secondary inlet 32A, and the HEX secondary outlet 32B are arranged.

[0069] The primary refrigerant flows into the heat exchanger 3 from the HEX primary inlet 31A and flows out of the heat exchanger 3 through the HEX primary outlet 31B. The secondary refrigerant flows into the heat exchanger 3 from the HEX secondary inlet 32A and flows out of the heat exchanger 3 through the HEX secondary outlet 32B.

[0070] Inside the heat exchanger 3, the surface of each heat transfer plate becomes a flow path of the refrigerant. Here, the heat transfer plates through which the primary refrigerant flows and the heat transfer plates through which the secondary refrigerant flows are alternately stacked. As a result, the heat of the high-temperature refrigerant (i.e., the secondary refrigerant) is transferred to the heat transfer plates, and the heat is transferred to the low-temperature refrigerant (the primary refrigerant).

[0071] <2-5. Pump> The pump 4 has a pump rotor (not shown) in the internal flow path of the pump 4. The pump rotor is rotated by the power from the pump motor (not shown). By rotating the pump rotor, the secondary refrigerant is sucked and pumped. The type of the pump 4 is not particularly limited. As the pump 4, various pumps such as a centrifugal pump, a propeller pump, a rotary pump, a gear pump, and a screw pump can be used.

[0072] like Fig. 9 As shown, the pump 4 has a pump body 40. The pump body 40 includes a pump motor, a pump rotor, a pump cover covering them, and the like.

[0073] The pump 4 has a pump inlet 40A and a pump outlet 40B. The pump inlet 40A is an inlet for the secondary refrigerant to flow into the pump 4. The pump outlet 40B is an outlet for the secondary refrigerant from the pump 4. The pump inlet 40A and the pump outlet 40B are disposed in the pump body 40.

[0074] For example, the pump cover has a back cover 400 that covers the pump motor and pump rotor, etc. from one side in the X direction. The back cover 400 is in the shape of a plate, with the X direction being the direction of the plate thickness. The back cover 400 has two openings that penetrate along the X direction. The tubular parts with the X direction as the axial direction protrude from the above two openings to the side closer to the X direction than the back cover 400. The pump 4 has two tubular parts protruding from the back cover 400 to one side in the X direction to serve as the pump inlet 40A and the pump outlet 40B, respectively. That is, the pump inlet 40A and the pump outlet 40B are open to one side in the X direction.

[0075] The pump 4 has a pump inlet side flow path 4A and a pump outlet side flow path 4B. The pump inlet side flow path 4A connects the pump inlet 40A and the secondary flow path 2. The pump inlet side flow path 4A is connected to a flow path pipe 23 constituting a part of the secondary flow path 2. The pump outlet side flow path 4B connects the pump outlet 40B and the secondary flow path 2. The pump outlet side flow path 4B is connected to a flow path pipe 24 constituting a part of the secondary flow path 2.

[0076] For example, the flow tubes 23 and 24 connected to the pump inlet flow path 4A and the pump outlet flow path 4B are sockets of the coupling. The pump inlet flow path 4A and the pump outlet flow path 4B are respectively attachable and detachable to the corresponding sockets (i.e., the flow tubes 23 and 24).

[0077] Thus, the pump 4 can be installed and removed relative to the frame 9 along the X direction. For example, a pump opening (symbol omitted) for enabling the pump 4 to be installed and removed is provided on the front panel 92. The pump 4 is installed and removed relative to the frame 9 via the pump opening. When the pump 4 is installed in the frame 9, a part of the pump 4 such as a gripper 41 is exposed from the pump opening. The gripper 41 is held by a worker who installs and removes the pump 4.

[0078] <2-6.Cans> like Fig.10 As shown, the tank 5 is a roughly rectangular parallelepiped having six outer surfaces. The tank 5 has a pair of outer surfaces parallel to the XY plane, a pair of outer surfaces parallel to the YZ plane, and a pair of outer surfaces parallel to the ZX plane. The tank 5 has the X direction as the long side direction. Compared with the heat exchanger 3, the tank 5 is flat in the Z direction. The tank 5 has a space inside for storing refrigerant.

[0079] The tank 5 has a tank-side supply port (not shown) on the outer surface of the other side in the Z direction. The secondary flow path 2 has a flow path-side supply port 20 (see Figure 6). The flow path side supply port 20 is arranged on the flow path pipe 22. Thus, the refrigerant is supplied from the tank 5 to the secondary flow path 2 via the flow path side supply port 20. When the flow rate of the secondary refrigerant circulating in the cooling system 1000 decreases, the refrigerant is supplied from the tank 5 to the secondary flow path 2. Thus, the flow rate of the secondary refrigerant circulating in the cooling system 1000 can be maintained constant.

[0080] For example, the tank 5 has an inlet 51, a liquid level confirmation window 52, ​​and an air extraction valve 53. The inlet 51 is used to add refrigerant to the tank 5. The liquid level confirmation window 52 is made of a light-transmitting material and is used to confirm the internal state of the tank 5. The air extraction valve 53 is used to release the internal air of the tank 5 to the outside.

[0081] <2-7. Control circuit> Control circuit 6 (refer to Figure 5 to Figure 7 ) is mounted on the control substrate 60. The circuit mounted on the control substrate 60 is the control circuit 6. The control substrate 60 is mounted with a microcomputer, a memory, and the like.

[0082] Although not shown, the control circuit 6 is connected to a temperature and humidity sensor for detecting the temperature and humidity inside the CDU 100, and is connected to a temperature sensor for detecting the temperature of the primary refrigerant and a temperature sensor for detecting the temperature of the secondary refrigerant. In addition, the control circuit 6 controls the pump 4 and controls the opening degrees of the control valve V1 and the control valve V2.

[0083] <2-8. Power supply unit> Power supply unit 7 (refer to Figures 4 to 7 ) includes a power supply circuit. The power supply unit 7 is connected to a commercial power supply to generate a DC voltage from an AC voltage. The power supply unit 7 supplies power to the power supply receiving parts such as the pump 4, the control circuit 6, the control valve V1, the control valve V2, and various sensors that receive power supply and operate.

[0084] For example, the power supply unit 7 has a power supply terminal on one side in the X direction. Therefore, the back panel 91 is provided with an opening for the power supply unit. The power supply terminal of the power supply unit 7 is exposed to the outside from the storage area 90 via the opening for the power supply unit. In addition, the number of power supply units 7 is two. The two power supply units 7 are stacked in the Z direction.

[0085] <2-9. Touch screen> Touch screen 8 (refer to Figure 2 and Figure 4 ) is connected to the control circuit 6. The control circuit 6 displays various information on the touch screen 8. For example, the touch screen 8 displays the operating status of the cooling system 1000. In addition, the touch screen 8 displays the respective measured values ​​of the temperature and humidity sensor and the temperature sensor. The touch screen 8 is one of the power supply units that receive power from the power supply unit 7 and operate.

[0086] The front plate 92 has an opening for a touch panel (reference numeral omitted). The display surface of the touch panel 8 is exposed to the outside from the storage region 90 through the opening for the touch panel.

[0087] <3. Storage area layout> <3-1. Positional relationship between heat exchanger and pump> Fig.11 1 is a diagram showing the positional relationship between the heat exchanger 3 and the pump 4 of the CDU 100 according to the embodiment. Fig.11 This corresponds to a plan view of the storage area 90 as viewed from one side (upper side) in the Z direction.

[0088] In the present embodiment, the entire heat exchanger 3 is located on the Y-direction side relative to the pump 4. That is, the entire heat exchanger 3 does not face the pump 4 in the X-direction.

[0089] Specifically, when viewed from the Z direction, the heat exchanger 3 is arranged along the plate 93 on one side in the Y direction. On the other hand, the pump 4 is arranged along the plate 94 on the other side in the Y direction. That is, the heat exchanger 3 as a whole is located closer to the Y direction than the pump 4. Fig.11 In FIG. 1 , the Y-direction range of the region where the heat exchanger 3 is disposed is indicated by Ra, and the Y-direction range of the region where the pump 4 is disposed is indicated by Rb. Since the entire heat exchanger 3 is located on the Y-direction side relative to the pump 4, the range Ra and the range Rb do not overlap.

[0090] In the present embodiment, by positioning the entire heat exchanger 3 at a position closer to the Y direction side than the pump 4, the heat exchanger 3 is not opposite to the pump 4 in the X direction. Specifically, the heat exchanger 3 is arranged adjacent to the plate 91 on one side of the X direction, and is arranged adjacent to the plate 93 on one side of the Y direction. Therefore, it is not necessary to ensure the configuration space of the pump 4 in the area on the other side of the heat exchanger 3 in the X direction in the storage area 90, and the length direction dimension of the heat exchanger 3 can be increased accordingly. That is, the surface area of ​​each heat transfer plate of the heat exchanger 3 can be increased. The larger the size of the heat exchanger 3, the more thermal contact points there are between the primary refrigerant and the secondary refrigerant in the heat exchanger 3, and therefore, the cooling performance of the heat exchanger 3 (the performance of cooling the secondary refrigerant) is improved. As a result, the cooling performance of the CDU 100 is improved.

[0091] In addition, a plurality of pumps 4 are disposed in the storage area 90. The plurality of pumps 4 are arranged in the Y direction.

[0092] Therefore, in the present embodiment, the heat exchanger 3 as a whole is located at a position closer to the Y direction side than the pump 4 on one side of the Y direction among the plurality of pumps 4. That is, the heat exchanger 3 as a whole is located at a position closer to the Y direction side than any pump 4. In this structure, even if there are a plurality of pumps 4, the size of the heat exchanger 3 can be increased. In addition, by making the plurality of pumps 4 closer to the other side in the Y direction than the heat exchanger 3, the piping of the primary flow path 1 and the secondary flow path 2 becomes easier.

[0093] The pump inlet 40A and the pump outlet 40B are cylindrical members protruding from the pump body 40 to one side in the X direction. The pump inlet side flow path 4A is connected to the pump inlet 40A in the X direction, and the pump outlet side flow path 4B is connected to the pump outlet 40B in the X direction.

[0094] Furthermore, in the present embodiment, the pump inlet side flow path 4A and the pump outlet side flow path 4B extend in the X direction at a position closer to the Y direction side than the heat exchanger 3. The pump inlet side flow path 4A extends from the pump inlet 40A to one side in the X direction, and the pump outlet side flow path 4B extends from the pump outlet 40B to one side in the X direction. Thus, when the secondary flow path 2 is pulled around in the area on one side in the X direction of the pump 4 in the storage area 90, the secondary flow path 2 can be easily pulled around. In addition, when the pump 4 is installed and removed relative to the frame 9, it is necessary to move the pump 4 in the X direction, but the installation and removal of the pump 4 becomes easy.

[0095] <3-2. Secondary flow path winding> In this embodiment, if Figure 7 As shown, the portion of the secondary flow path 2 that connects the frame secondary outlet 92B and the pump outlet 40B extends in the X direction at the Y direction side (specifically, one side of the Y direction) of the heat exchanger 3. In addition, the portion of the secondary flow path 2 that connects the frame secondary outlet 92B and the pump outlet 40B is the flow path pipe 24 and the flow path pipe 25. With this structure, the secondary flow path 2 (outlet side) from the pump 4 to the frame secondary outlet 92B can be easily obtained.

[0096] <3-3. Direction of heat exchanger> In this embodiment, if Figures 5 to 8 As shown, the flow path connection surface 300 faces the other side in the Y direction. Here, the flow path connection surface 300 is a surface having a HEX primary inlet 31A, a HEX primary outlet 31B, a HEX secondary inlet 32A, and a HEX secondary outlet 32B. That is, the HEX primary inlet 31A, the HEX primary outlet 31B, the HEX secondary inlet 32A, and the HEX secondary outlet 32B face the other side in the Y direction.

[0097] In this structure, the primary flow path 1 can be easily connected to the heat exchanger 3 (specifically, the HEX primary inlet 31A and the HEX primary outlet 31B). In addition, the secondary flow path 2 can be easily connected to the heat exchanger 3 (specifically, the HEX secondary inlet 32A and the HEX secondary outlet 32B). In addition, since the heat exchanger 3 is arranged adjacent to the plate 91 and the plate 93, the HEX primary inlet 31A, the HEX primary outlet 31B, the HEX secondary inlet 32A and the HEX secondary outlet 32B are concentrated on the flow path connection surface 300, so that the heat exchanger 3 can be easily enlarged.

[0098] <3-4. Control circuit location> In this embodiment, the heat exchanger 3 and the pump 4 are not opposed to each other in the X direction. That is, a region without the pump 4 is formed on the X direction side of the heat exchanger 3 in the storage area 90. Neither the primary flow path 1 nor the secondary flow path 2 is arranged in this region.

[0099] Therefore, in this embodiment, if Figure 5 to Figure 7 As shown, the control circuit 6 is arranged in the region on the X direction side of the heat exchanger 3 in the storage region 90. Specifically, the heat exchanger 3 is arranged on one side in the X direction along the back plate 91. As a result, a space is generated in the region on the other side in the X direction of the heat exchanger 3 in the storage region 90 where the control circuit 6 can be arranged, and therefore, the control circuit 6 is arranged in this space.

[0100] Here, the arrangement space of the control circuit 6 is smaller than the arrangement space of the pump 4. Therefore, even if the control circuit 6 is arranged in the area on the other side of the heat exchanger 3 in the X direction in the storage area 90, it does not hinder the enlargement of the heat exchanger 3 in the X direction. That is, the heat exchanger 3 can be enlarged while ensuring the arrangement space of the control circuit 6.

[0101] In this embodiment, the control circuit 6 is arranged in the area of ​​the storage area 90 on the Y direction side of the pump 4. That is, the control circuit 6 is arranged in the area of ​​the storage area 90 on the other side of the heat exchanger 3 in the X direction and on the Y direction side of the pump 4.

[0102] In this configuration, the X-direction dimension of the control circuit 6 is smaller than the X-direction dimension of the pump 4. Thus, the control circuit 6 can be easily disposed in the storage region 90 on the other side of the heat exchanger 3 in the X direction and on one side of the pump 4 in the Y direction.

[0103] For example, the control substrate 60 is arranged so that the mounting surface of the control substrate 60 is perpendicular to the Z direction. However, the present invention is not limited thereto. The control substrate 60 may be arranged so that the mounting surface of the control substrate 60 is perpendicular to the X direction or the Y direction.

[0104] In addition, the configuration space of the control circuit 6 is the space on the other side of the heat exchanger 3 and the tank 5 in the X direction and on the one side of the pump 4 in the Y direction, and there is no primary flow path 1 and secondary flow path 2. In addition, the configuration space of the control circuit 6 is divided by the surface of the heat exchanger 3 without piping connection, the surface of the tank 5 without piping connection, and the surface of the pump 4 without piping connection. Thereby, it is possible to suppress the adverse effects on the control circuit 6 caused by liquid leakage.

[0105] The touch screen 8 is disposed in the space on the other side of the heat exchanger 3 in the X direction. Specifically, the touch screen 8 is adjacent to the control circuit 6 on the other side in the X direction. This facilitates the connection between the touch screen 8 and the control circuit 6 without affecting the insertion and removal of the pump 4.

[0106] <3-5. Power supply unit location> Fig.12 This is a plan view of the CDU 100 according to the embodiment as viewed from one side in the X direction. Fig.12 In FIG. 1 , the arrangement position of the heat exchanger 3 is indicated by a dotted line.

[0107] In this embodiment, if Figure 5 to Figure 7 As shown, the power supply unit 7 is located on the Y direction side of the heat exchanger 3 and on the X direction side of the pump 4. Thus, the power supply unit 7 can be easily arranged in the storage area 90 without interfering with the heat exchanger 3 and the pump 4.

[0108] In addition, in this embodiment, the heat exchanger 3 is arranged on one side in the Y direction, and the power supply unit 7 is arranged at a distance from the heat exchanger 3 on the other side in the Y direction. Fig.12 As shown, the frame primary inlet 91A, the frame primary outlet 91B, the frame secondary inlet 92A, and the frame secondary outlet 92B are arranged between the heat exchanger 3 and the power unit 7 in the Y direction when viewed from the X direction. Thus, at least a portion of the primary flow path 1 can be drawn between the heat exchanger 3 and the power unit 7 in the Y direction, and at least a portion of the secondary flow path 2 can be drawn between the heat exchanger 3 and the power unit in the Y direction.

[0109] <3-6. Tank location> In this embodiment, if Figure 4 and Fig.10 As shown, the tank 5 is arranged on one side (i.e., the upper side) of the heat exchanger 3 in the Z direction, and at least a part of the tank 5 overlaps with the heat exchanger 3 in the Z direction. When viewed from the Z direction, a part of the tank 5 protrudes from the heat exchanger 3, and the part of the tank 5 that protrudes from the heat exchanger 3 is connected to the flow path pipe 22 in the Z direction. That is, the tank 5 is connected to the secondary flow path 2 in the Z direction.

[0110] In this structure, bubbles in the secondary flow path 2 are easily collected in the tank 5. This can reduce bubbles in the secondary flow path 2. In addition, since the heat exchanger 3 and the tank 5 do not overlap in the horizontal direction, the heat exchanger 3 can be easily enlarged.

[0111] In addition, the tank 5 is located on one side (i.e., the upper side) in the Z direction relative to the secondary flow path 2. Furthermore, the connection port between the tank 5 and the secondary flow path 2 is provided on the surface of the tank 5 on the other side (i.e., the lower side) in the Z direction. Therefore, even when the refrigerant inside the tank 5 is reduced, the refrigerant can be supplied from the tank 5 to the secondary flow path 2.

[0112] <3-7. Positional relationship between primary flow path and secondary flow path> Fig.13 This is a perspective view of the primary flow path 1 and the secondary flow path 2 of the CDU 100 according to the embodiment as viewed from the side opposite to the heat exchanger 3 side.

[0113] The secondary refrigerant flowing into the heat exchanger 3 through the secondary flow path 2 is higher in temperature than the primary refrigerant flowing into the heat exchanger 3 through the primary flow path 1. In addition, at least a portion of the secondary flow path 2 overlaps with the primary flow path 1 in the Z direction. In other words, at least a portion of the secondary flow path 2 is arranged near the primary flow path 1. Therefore, due to the temperature difference between the primary flow path 1 and the secondary flow path 2, condensation may occur on the outer peripheral surface of the primary flow path 1, causing water droplets to fall from the outer peripheral surface of the primary flow path 1.

[0114] Therefore, in the present embodiment, the secondary flow path 2 is located on one side of the primary flow path 1 in the Z direction. In other words, the secondary flow path 2 is located on the upper side of the primary flow path 1. In this structure, even if water droplets fall from the outer peripheral surface of the primary flow path 1, the water droplets will not adhere to the outer peripheral surface of the secondary flow path 2. Thus, for example, malfunction of the sensor caused by water droplets adhering to the sensor disposed in the secondary flow path 2 can be suppressed.

[0115] In addition, leakage sensors may be provided in the primary flow path 1 and the secondary flow path 2 , respectively. Thus, liquid leakage can be detected in each of the primary flow path 1 and the secondary flow path 2 .

[0116] <4. Others> The above is an explanation of the embodiments of the present invention. In addition, the scope of the present invention is not limited by the above embodiments. The present invention can be implemented by adding various changes within the scope of the invention. Moreover, the above embodiments can be appropriately combined arbitrarily.

[0117] The present invention can adopt the following structures (1) to (11).

[0118] (1) A refrigerant cycle device comprising: a primary flow path, the primary flow path being a flow path for a primary refrigerant; A secondary flow path, wherein the secondary flow path is a flow path for a secondary refrigerant; a heat exchanger connected to the primary flow path and the secondary flow path; a pump connected to the secondary flow path; and A frame having a storage area, The storage area extends in a first direction and a second direction that intersect each other, and has a longer dimension in the first direction than in the second direction. The frame accommodates the primary flow path, the secondary flow path, the heat exchanger, and the pump in the accommodation area. The entire heat exchanger is located on one side of the pump in the second direction.

[0119] (2) The refrigerant cycle device according to (1), further comprising a plurality of the pumps. The entire heat exchanger is located on one side in the second direction relative to any of the pumps.

[0120] (3) In the refrigerant cycle device described in (1) or (2), the pump has: a pump inlet, the pump inlet being an inlet for the secondary refrigerant; a pump outlet, the pump outlet being an outflow outlet of the secondary refrigerant; a pump inlet-side flow path connecting the pump inlet with the secondary flow path; and a pump outlet side flow path, the pump outlet side flow path connecting the pump outlet with the secondary flow path, The pump inlet-side flow path and the pump outlet-side flow path extend along the first direction on the second direction side relative to the heat exchanger.

[0121] (4) In the refrigerant cycle device described in (3), the frame has a frame secondary outlet, and the frame secondary outlet is an outflow outlet of the secondary refrigerant. A portion of the secondary flow path that connects the housing secondary outlet and the pump outlet extends in the first direction on the second direction side relative to the heat exchanger.

[0122] (5) In the refrigerant cycle device described in any one of (1) to (4), the entire heat exchanger is located closer to the second direction than the pump. The heat exchanger has: A HEX primary inlet, the HEX primary inlet is connected to the primary flow path and is an inlet for the primary refrigerant; A HEX primary outlet, the HEX primary outlet is connected to the primary flow path and is an outflow outlet of the primary refrigerant; A HEX secondary inlet, the HEX secondary inlet is connected to the secondary flow path and is an inlet for the secondary refrigerant; a HEX secondary outlet, the HEX secondary outlet being connected to the secondary flow path and being an outflow outlet of the secondary refrigerant; and A HEX frame having a flow path connection surface provided with the HEX primary inlet, the HEX primary outlet, the HEX secondary inlet, and the HEX secondary outlet, The flow path connecting surface faces the other side of the second direction.

[0123] (6) The refrigerant cycle device according to any one of (1) to (5), further comprising a control circuit. The frame accommodates the control circuit in the accommodation area. The control circuit is arranged in a region of the housing region on the first direction side of the heat exchanger.

[0124] (7) In the refrigerant cycle device described in (6), the control circuit is arranged in a region on the second direction side of the pump in the housing region, A dimension of the control circuit in the first direction is smaller than a dimension of the pump in the first direction.

[0125] (8) The refrigerant cycle device according to any one of (1) to (7), further comprising a power supply unit. The frame accommodates the power supply unit in the accommodation area. The power supply unit is located on the second direction side relative to the heat exchanger and on the first direction side relative to the pump.

[0126] (9) In the refrigerant cycle device described in (8), the heat exchanger is arranged on one side in the second direction, The power supply unit is arranged at a distance from the heat exchanger on the other side of the second direction. The frame has: a primary inlet of the frame, the primary inlet of the frame being connected to the primary flow path and being an inlet for the primary refrigerant; a primary outlet of the frame, the primary outlet of the frame being connected to the primary flow path and being an outflow outlet of the primary refrigerant; a frame secondary inlet, the frame secondary inlet being connected to the secondary flow path and being an inlet for the secondary refrigerant; and a frame secondary outlet, the frame secondary outlet being connected to the secondary flow path and being an outflow outlet of the secondary refrigerant, The frame primary inlet, the frame primary outlet, the frame secondary inlet, and the frame secondary outlet are arranged between the heat exchanger and the power supply unit in the second direction.

[0127] (10) The refrigerant cycle device according to any one of (1) to (9), further comprising a tank storing a refrigerant used as the secondary refrigerant. The frame stores the tank in the storage area. The tank is arranged on the side of the heat exchanger in a third direction intersecting the first direction and the second direction, and at least a portion of the tank overlaps with the heat exchanger in the third direction. The tank is connected to the secondary flow path in the third direction.

[0128] (11) In the refrigerant cycle device described in any one of (1) to (10), the secondary refrigerant flowing into the heat exchanger through the secondary flow path has a higher temperature than the primary refrigerant flowing into the heat exchanger through the primary flow path, The secondary flow path is located closer to a third direction intersecting the first direction and the second direction than the primary flow path. Industrial Applicability

[0129] The present invention can be used, for example, for a refrigerant cycle device installed in a cooling system for cooling electronic equipment, electronic components, and the like. (Explanation of symbols)

[0130] 1 primary flow path 2 Secondary flow path 3Heat exchanger 4 Pumps 4A Pump inlet side flow path 4B Pump outlet side flow path 5 cans 6. Control Circuit 7 Power supply unit 9 Frame 30HEX frame 31A HEX primary inlet 31B HEX one-time export 32A HEX secondary inlet 32B HEX secondary export 40A pump inlet 40B Pump Outlet 90 Storage Area 91A frame primary entrance 91B frame primary exit 92A frame secondary entrance 92B frame secondary exit 300 flow path connection surface.

Claims

1. A refrigerant cycle device, characterized in that: have: A primary flow path, wherein the primary flow path is a flow path of a primary refrigerant; A secondary flow path, wherein the secondary flow path is a flow path for a secondary refrigerant; a heat exchanger connected to the primary flow path and the secondary flow path; a pump connected to the secondary flow path; as well as A frame having a storage area, The storage area extends in a first direction and a second direction that intersect each other, and has a longer dimension in the first direction than in the second direction. The frame accommodates the primary flow path, the secondary flow path, the heat exchanger, and the pump in the accommodation area. The entire heat exchanger is located on one side of the pump in the second direction.

2. The refrigerant cycle device according to claim 1, characterized in that: A plurality of the pumps are provided, The entire heat exchanger is located on one side in the second direction relative to any of the pumps.

3. The refrigerant cycle device according to claim 1 or 2, characterized in that: The pump has: a pump inlet, the pump inlet being an inlet for the secondary refrigerant; a pump outlet, the pump outlet being an outflow outlet of the secondary refrigerant; a pump inlet-side flow path connecting the pump inlet with the secondary flow path; and a pump outlet side flow path, the pump outlet side flow path connecting the pump outlet with the secondary flow path, The pump inlet-side flow path and the pump outlet-side flow path extend along the first direction on the second direction side relative to the heat exchanger.

4. The refrigerant cycle device according to claim 3, characterized in that: The frame has a frame secondary outlet, and the frame secondary outlet is an outflow outlet of the secondary refrigerant. A portion of the secondary flow path that connects the housing secondary outlet and the pump outlet extends in the first direction on the second direction side relative to the heat exchanger.

5. The refrigerant cycle device according to claim 1 or 2, characterized in that: The heat exchanger is entirely located on one side of the pump in the second direction. The heat exchanger has: A HEX primary inlet, the HEX primary inlet is connected to the primary flow path and is an inlet for the primary refrigerant; A HEX primary outlet, the HEX primary outlet is connected to the primary flow path and is an outflow outlet of the primary refrigerant; A HEX secondary inlet, the HEX secondary inlet is connected to the secondary flow path and is an inlet for the secondary refrigerant; a HEX secondary outlet, the HEX secondary outlet being connected to the secondary flow path and being an outflow outlet of the secondary refrigerant; and A HEX frame having a flow path connection surface provided with the HEX primary inlet, the HEX primary outlet, the HEX secondary inlet, and the HEX secondary outlet, The flow path connecting surface faces the other side of the second direction.

6. The refrigerant cycle device according to claim 1 or 2, characterized in that: Equipped with control circuit, The frame accommodates the control circuit in the accommodation area. The control circuit is arranged in a region of the housing region on the first direction side of the heat exchanger.

7. The refrigerant cycle device according to claim 6, characterized in that: The control circuit is arranged in a region of the housing region on the second direction side of the pump. A dimension of the control circuit in the first direction is smaller than a dimension of the pump in the first direction.

8. The refrigerant cycle device according to claim 1 or 2, characterized in that: Equipped with a power supply unit, The frame accommodates the power supply unit in the accommodation area. The power supply unit is located on the second direction side relative to the heat exchanger and on the first direction side relative to the pump.

9. The refrigerant cycle device according to claim 8, characterized in that: The heat exchanger is arranged on one side of the second direction, The power supply unit is arranged at a distance from the heat exchanger on the other side of the second direction. The frame has: a primary inlet of the frame, the primary inlet of the frame being connected to the primary flow path and being an inlet for the primary refrigerant; a primary outlet of the frame, the primary outlet of the frame being connected to the primary flow path and being an outflow outlet of the primary refrigerant; a frame secondary inlet, the frame secondary inlet being connected to the secondary flow path and being an inlet for the secondary refrigerant; and a frame secondary outlet, the frame secondary outlet being connected to the secondary flow path and being an outflow outlet of the secondary refrigerant, The frame primary inlet, the frame primary outlet, the frame secondary inlet, and the frame secondary outlet are arranged between the heat exchanger and the power supply unit in the second direction.

10. The refrigerant cycle device according to claim 1 or 2, characterized in that: A tank is provided, the tank storing a refrigerant used as the secondary refrigerant, The frame stores the tank in the storage area. The tank is arranged on the side of the heat exchanger in a third direction intersecting the first direction and the second direction, and at least a portion of the tank overlaps with the heat exchanger in the third direction. The tank is connected to the secondary flow path in the third direction.

11. The refrigerant cycle device according to claim 1 or 2, characterized in that: The secondary refrigerant flowing into the heat exchanger through the secondary flow path has a higher temperature than the primary refrigerant flowing into the heat exchanger through the primary flow path. The secondary flow path is located closer to a third direction intersecting the first direction and the second direction than the primary flow path.

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