Cooling module

Abstract

The invention provides a cooling module capable of adjusting the pressure in a flow path through which a fluid flows. A cooling module is provided with: a manifold (1) having therein a first flow path (L1) through which a first fluid (F1) flows and a second flow path (L2) through which a second fluid (F2) flows; and a valve (3) that is attached to the manifold (1) and that controls the flow of the first fluid (F1) and the second fluid (F2). The manifold (1) is provided with a pressure regulation flow path (120) that regulates the pressure between the first flow path (L1) and the second flow path (L2).

Description

Technical Field

[0001] The invention relates to a cooling module. Background Art

[0002] As a technology for cooling motors, batteries, etc., which are included in vehicles such as electric vehicles, for example, Patent Document 1 discloses a thermal management system including a refrigerant loop system, a motor liquid cooling loop system, an air conditioning liquid cooling loop system, and a battery liquid cooling loop system. In the thermal management system disclosed in Patent Document 1, a multifunctional valve including an expansion kettle is provided in the motor liquid cooling loop system. Patent Literature

[0003] Patent Document 1: Japanese Patent Application No. 2022-545035 Summary of the invention

[0004] In the thermal management system disclosed in Patent Document 1, a multifunctional valve including an expansion kettle is provided in the electric motor liquid cooling circuit system, while an expansion kettle is not provided in the battery liquid cooling circuit system. Therefore, even if the liquid flowing in the battery liquid cooling circuit system undergoes thermal expansion, pressure regulation (decompression) cannot be performed on the battery liquid cooling circuit system side. As a result, the flow rate of the pump provided on the battery liquid cooling circuit system side becomes unstable, and there is a concern that the cooling capacity on the battery liquid cooling circuit system side may decrease.

[0005] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a cooling module capable of adjusting the pressure in a flow path through which a fluid flows.

[0006] In view of the above situation, the characteristic structure of the cooling module is a manifold that includes a first flow path through which a first fluid flows and a second flow path through which a second fluid flows, and a valve installed on the above manifold and controlling the flow of the above-mentioned first fluid and the above-mentioned second fluid, and the above-mentioned manifold has a pressure regulating flow path that regulates the pressure between the first flow path and the second flow path.

[0007] According to the above-mentioned characteristic structure, since the manifold is provided with a pressure regulating flow path for adjusting pressure balance, it is possible to adjust the pressure (decompress) of the first flow path and the second flow path. In addition, since the pressure regulating flow path is provided in the manifold, the amount of piping wiring can be reduced compared to the case where a pressure regulating flow path is separately provided outside the cooling module. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 A circuit configuration diagram showing a portion of a cooling system including a cooling module according to an embodiment. Figure 2 The figure is an exploded perspective view showing the structure of a cooling module according to an embodiment. Figure 3 An exploded perspective sectional view showing a manifold according to an embodiment. Figure 4 It is a top view showing the second wall portion involved in the embodiment. Figure 5 A diagram showing the structure of a valve according to an embodiment. Figure 6 To show along Figure 5 A diagram of a cross section taken along line VI-VI is shown. Figure 7 It is a cross-sectional view of a part of a valve and a manifold according to an embodiment. DETAILED DESCRIPTION

[0009] Hereinafter, embodiments of the cooling module according to the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiments, and various modifications can be made without departing from the gist thereof.

[0010] [Cooling system] First, refer to Figure 1 , the structure of the cooling system A including the cooling module 100 will be described. Figure 1 1 is a circuit diagram showing a portion of a cooling system A having a cooling module 100. The cooling system A is a system that is mounted on an electric vehicle that runs on electricity (hereinafter referred to as an "electric vehicle") and cools cooling target devices (inverter / motor R1, battery R2, etc.) mounted on the electric vehicle. The inverter / motor R1 is a driving source that works by being supplied with electricity, and the battery R2 stores electricity and supplies electricity to the inverter / motor R1 as needed. Electric vehicles include, for example, hybrid electric vehicles (HEV: Hybrid Electric Vehicle), plug-in hybrid electric vehicles (PHEV: Plug-in Hybrid Electric Vehicle), battery electric vehicles (BEV: Battery Electric Vehicle), fuel cell vehicles (FCEV: Fuel Cell Electric Vehicle), etc.

[0011] like Figure 1 As shown, the cooling system A includes a pump 2, a valve 3, a radiator 4, a cooler 5, and a fluid flow path L for a fluid F to flow. The fluid F is a cooling fluid such as a long-life coolant (LLC). However, the fluid F is not limited to a cooling fluid such as a long-life coolant (LLC), and may be an insulating oil such as a paraffin-based refrigerant, a hydrofluorocarbon (HFC), a hydrofluoroolefin (HFO), or the like.

[0012] The pump 2 pressurizes the fluid F so that the fluid F flows in the fluid flow path L. The pump 2 is, for example, an electric water pump. The valve 3 controls the flow of the fluid F. The valve 3 includes a rotating shaft 31 and a valve body 32 that rotates around the rotating shaft 31 (see Figure 2 ) is a rotary valve that rotates around the axis AX of the rotary shaft 31. The radiator 4 and the cooler 5 adjust the temperature of the fluid F (for example, cool the fluid F when the temperature is higher than a predetermined temperature).

[0013] The pump 2, valve 3, radiator 4, cooler 5, inverter / motor R1, and battery R2 are connected via a fluid flow path L. Thus, a circulation circuit C in which fluid F circulates is formed. The circulation circuit C includes a first circulation circuit C1 in which fluid F for adjusting (cooling) the temperature of the inverter / motor R1 circulates, and a second circulation circuit C2 in which fluid F for adjusting (cooling) the temperature of the battery R2 circulates. Hereinafter, the fluid F circulating in the first circulation circuit C1 will be referred to as "first fluid F1", and the fluid flow path L constituting the first circulation circuit C1 will be referred to as "first flow path L1". In addition, the fluid F circulating in the second circulation circuit C2 will be referred to as "second fluid F2", and the fluid flow path L constituting the second circulation circuit C2 will be referred to as "second flow path L2".

[0014] In the present embodiment, the cooling system A has two pumps 2 and two valves 3. Each of the two valves 3 is a rotary valve of a two-stage structure having two valve spaces (spaces through which the fluid F flows) along the direction in which the axis AX of the rotating shaft 31 extends (hereinafter referred to as "axial direction"). For example, the valve 3 is a multi-way valve such as a three-way valve that can switch the flow direction of the fluid F into three directions, or a four-way valve that can switch the flow direction of the fluid F into four directions. Figure 1 The circulation circuit C described here shows an example of the circulation circuit C connected to one of the two pumps 2, and the first fluid F1 flowing in the first circulation circuit C1 and the second fluid F2 flowing in the second circulation circuit C2 flow to one of the two pumps 2. It should be noted that the first fluid F1 and the second fluid F2 may also flow to the other of the two pumps 2.

[0015] The cooling system A further includes a backup tank T capable of absorbing thermal expansion of the fluid F. In the present embodiment, the backup tank T is provided only in the first circulation circuit C1 (no backup tank capable of absorbing thermal expansion of the fluid F is provided in the second circulation circuit C2).

[0016] [Cooling module] Next, refer to Figure 2 to Figure 4 , the structure of the cooling module 100 is described. Figure 2 It is an exploded perspective view showing the structure of the cooling module 100 . Figure 3FIG. 1 is an exploded perspective sectional view showing the manifold 1. Figure 3 , the first housing 11 is cut along the Z direction. Figure 4 This is a diagram showing the second wall portion 112 of the manifold 1 as viewed along the Z1 direction.

[0017] like Figure 2 As shown, the cooling system A further includes a manifold 1, which includes a portion of a fluid flow path L (see Figure 1 The first flow path L1 and the second flow path L2 described above are provided. The pump 2 and the valve 3 are mounted on the manifold 1, and by integrating them, a cooling module 100 is formed. In this embodiment, the cooling module 100 is formed by mounting (integrating) two pumps 2 and two valves 3 on the manifold 1.

[0018] [Manifold] The manifold 1 is box-shaped and includes a first housing 11 and a second housing 12. Hereinafter, the direction from the first housing 11 toward the second housing 12 is referred to as "Z1 direction", the opposite direction is referred to as "Z2 direction", and the Z1 direction and the Z2 direction are collectively referred to as "Z direction".

[0019] The first housing 11 and the second housing 12 are made of, for example, resin. The first housing 11 and the second housing 12 are joined and integrated by welding or the like, thereby forming the manifold 1. A portion of the fluid flow path L is provided inside the manifold 1 through a groove formed in at least one of the first housing 11 and the second housing 12.

[0020] [First Shell] like Figure 2 as well as Figure 3 As shown, the first housing 11 includes a storage space 11s (in the present embodiment, two storage spaces 11s) for storing a portion of the valve 3 (valve body 32). As a wall portion constituting the storage space 11s, the first housing 11 includes a cylindrical first wall portion 111 that is opposite to the valve 3 (valve body 32) in the radial direction of the valve 3 (hereinafter referred to as the "radial direction DR"), and a disc-shaped second wall portion 112 (see FIG. 1 ) that is provided on the side close to the second housing 12 (in the Z1 direction from the valve 3 stored in the storage space 11s). Figure 3 as well as Figure 4 ).

[0021] like Figure 3 As shown, the first wall portion 111 has a plurality of openings 11h. Each opening 11h allows the fluid flow path L (see Figure 1 ) is connected to the storage space 11s.

[0022] like Figure 4As shown, the second wall portion 112 includes an insertion hole portion 113 , a hole portion 114 , and a rib portion 115 .

[0023] When viewed along the Z direction, the insertion hole 113 is circular and includes the rotation axis 31 of the valve 3 (see Figure 7 ) is inserted into the insertion hole 113a, and the peripheral edge portion 113b is provided in an annular shape so as to surround the insertion hole 113a. The peripheral edge portion 113b protrudes from the opposite surface 112a in the Z2 direction (refer to Figure 3 ). It should be noted that the opposing surface 112a is a plane of the second wall portion 112 that is opposed to the valve 3 (a plane of the second wall portion 112 in the Z2 direction).

[0024] The hole portion 114 is arranged on the outside (separated from the peripheral portion 113b) compared to the peripheral portion 113b in the radial direction DR. The hole portion 114 includes a plurality of (four in the present embodiment) holes 114a, and four holes 114a are formed on the second wall portion 112. Each hole 114a has the circumferential direction of the valve 3 (hereinafter referred to as "circumferential direction DC") as its length direction. Therefore, hereinafter, the hole 114a is referred to as a "long hole 114a". It should be noted that each of the insertion hole 113a and the long hole 114a penetrates the second wall portion 112 in the Z direction (refer to Figure 3 ).

[0025] like Figure 4 As shown, the four long holes 114a are arranged at equal intervals along the circumferential direction DC. Specifically, when viewed along the Z direction, the four long holes 114a are arranged at intervals with a central angle of 90 degrees around the insertion hole 113a.

[0026] like Figure 3 As shown in FIG. 1 , the rib portion 115 includes a plurality of ribs 115a protruding from the opposing surface 112a in the Z2 direction (the direction approaching the valve 3). Figure 4 As shown in FIG. 1 , the rib portion 115 includes four ribs 115 a , and the four ribs 115 a are arranged at equal intervals. Specifically, when viewed along the Z direction, the four ribs 115 a are arranged at intervals of 90 degrees. That is, the four ribs 115 a are arranged radially with the insertion hole 113 as the center.

[0027] Each rib 115a extends in a direction (radial direction DR) orthogonal to the Z direction. Each rib 115a extends with the peripheral edge portion 113b surrounding the insertion hole portion 113 as one end and a position located inside the inner edge of the long hole 114a in the radial direction DR as the other end. It should be noted that the four ribs 115a are not opposite to any of the four long holes 114a in the radial direction DR, and when viewed along the radial direction DR, each rib 115a is provided between the long holes 114a adjacent in the circumferential direction DC.

[0028] [Second housing] like Figure 3 As shown in FIG. 1 , the second housing 12 includes a pressure regulating flow path 120. The pressure regulating flow path 120 is used to adjust the reference Figure 1 The described flow path is a flow path for adjusting (reducing) the pressure between the first flow path L1 and the second flow path L2.

[0029] The pressure regulating flow path 120 includes an annular groove 123 formed in the second housing 12. The annular groove 123 is annular centered on the axis AX of the rotating shaft 31, and is formed between the first vertical wall 121 and the second vertical wall 122 of the second housing 12. When viewed along the Z direction, the first vertical wall 121 and the second vertical wall 122 are both annular centered on the axis AX of the rotating shaft 31 and are vertically arranged toward the first housing 11. It should be noted that the second vertical wall 122 is arranged outside the radial direction DR of the first vertical wall 121 in such a manner that its center coincides with the center of the first vertical wall 121.

[0030] like Figure 7 As shown, the annular groove 123 faces the hole portion 114 provided in the second wall portion 112 in the Z direction, and faces the valve 3 accommodated in the accommodation space 11 s.

[0031] [valve] Next, refer to Figure 5 to Figure 7 , the structure of the valve 3 is described. It should be noted that, in the following, Figure 2 One of the two valves 3 shown is used as an example for explanation. Figure 5 It is a figure which shows the structure of the valve 3. Figure 6 It is along Figure 5 The cross-sectional view of the line VI-VI is shown. Figure 7 It is a cross-sectional view showing the valve 3 and a part of the manifold 1 (the structure of the pressure regulating flow path 120 ).

[0032] As described above, the valve 3 includes the rotating shaft 31 and the valve body 32 which is integrally formed with the rotating shaft 31 and can rotate (see Figure 5 ). The rotating shaft 31 extends in the Z direction and is rotated by power being transmitted thereto from a driving source such as an actuator.

[0033] like Figure 5 As shown, the valve body 32 includes a circular first valve wall 321 and a second valve wall 322 which are provided separately in the extending direction (Z direction) of the rotation shaft 31 .

[0034] When the valve 3 is accommodated in the accommodation space 11 s , the second valve wall 322 faces the annular groove 123 in the Z direction via the second wall portion 112 .

[0035] The valve body 32 of the valve 3 further includes a connecting wall 323 provided to connect the first valve wall 321 and the second valve wall 322 , and a semicircular (semicircular when viewed in the Z direction) partition wall 324 extending in a direction orthogonal to the connecting wall 323 .

[0036] The valve 3 includes a first valve space 31a (an example of a first space) through which the first fluid F1 flows, and a second valve space 31b (an example of a second space) through which the second fluid F2 flows. Figure 1 The fluids F (the first fluid F1 and the second fluid F2) of the different circulation loops C (the first circulation loop C1 and the second circulation loop C2) described above flow in the first valve space 31a and the second valve space 31b. In the present embodiment, the first valve space 31a is divided by the connecting wall 323, the partition wall 324, and the second valve wall 322. The second valve space 31b is divided by the first valve wall 321, the connecting wall 323, and the second valve wall 322. It should be noted that Figure 2 Another valve in the valve 3 shown may also include at least the first valve wall 321, the second valve wall 322, and the connecting wall 323, and may include at least the valve space (an example of the first space) through which the first fluid F1 flows, and the valve space (an example of the second space) through which the second fluid F2 flows. However, the number and shape of the valve spaces may be appropriately changed according to the circulation circuit C to which the valve 3 is connected.

[0037] like Figure 6 as well as Figure 7 As shown, a first valve body hole 325 and a second valve body hole 326 are formed in the second valve wall 322 of the valve 3. The first valve body hole 325 and the second valve body hole 326 penetrate the second valve wall 322 along the Z direction. In this embodiment, when viewed along the Z direction, the first valve body hole 325 is circular and the second valve body hole 326 is fan-shaped.

[0038] like Figure 7 As shown, the first valve body hole 325 connects the first valve space 31a with the pressure regulating flow path 120 through the hole portion 114 (long hole 114a). That is, the first flow path L1 is connected to the pressure regulating flow path 120 via the first valve space 31a, the first valve body hole 325 and the hole portion 114 (long hole 114a). The first valve body hole 325 is formed to reduce the flow rate of the fluid F flowing from the first valve space 31a into the pressure regulating flow path 120. In detail, the first valve body hole 325 is a throttle hole formed with a smaller flow path cross-sectional area on the side of the first valve space 31a. It should be noted that the flow path cross-sectional area refers to the area of ​​the first valve body hole 325 in a direction orthogonal to the flow direction of the mainstream of the fluid F flowing through the first valve body hole 325.

[0039] Furthermore, the second valve body hole 326 communicates the second valve space 31b with the pressure regulating passage 120 through the hole portion 114 (long hole 114a). That is, the second passage L2 communicates with the pressure regulating passage 120 via the second valve space 31b, the second valve body hole 326 and the hole portion 114 (long hole 114a).

[0040] That is, the first flow path L1 and the second flow path L2 communicate with each other via the first valve space 31 a , the first valve body hole 325 , the hole portion 114 , the second valve space 31 b , the second valve body hole 326 , and the pressure regulating flow path 120 .

[0041] According to the above structure, the first flow path L1 and the second flow path L2 are connected via the first valve space 31a, the first valve body hole 325, the hole portion 114, the second valve space 31b, the second valve body hole 326, and the pressure regulating flow path 120. Therefore, for example, when the first fluid F1 flowing through the first flow path L1 undergoes thermal expansion and the pressure of the first flow path L1 becomes higher than the pressure of the second flow path L2, the pressure of the first flow path L1 can be released to the second flow path L2. Similarly, when the second fluid F2 flowing through the second flow path L2 undergoes thermal expansion and the pressure of the second flow path L2 becomes higher than the pressure of the first flow path L1, the pressure of the second flow path L2 can be released to the first flow path L1. That is, the pressure of the fluid flow path L (the first flow path L1 and the second flow path L2) can be adjusted (the pressure balance of the first flow path L1 and the second flow path L2 can be sought).

[0042] In addition, as referenced Figure 1 As described above, the first circulation circuit C1 is provided with a backup tank T. Therefore, since the first flow path L1 and the second flow path L2 are connected via the pressure regulating flow path 120, the backup tank T provided in the first circulation circuit C1 can also absorb the thermal expansion of the second fluid F2 flowing through the second flow path L2.

[0043] [Overview of the above embodiment] In the above-mentioned embodiment, the following structure is reviewed.

[0044] (1) The cooling module 100 includes a manifold 1 and a valve 3. The manifold 1 includes a first flow path L1 through which a first fluid F1 flows and a second flow path L2 through which a second fluid F2 flows. The valve 3 is installed on the manifold 1 and controls the flow of the first fluid F1 and the second fluid F2. The manifold 1 includes a pressure regulating flow path 120 for regulating the pressure between the first flow path L1 and the second flow path L2.

[0045] According to this structure, the pressure of the fluid flow path L (the first flow path L1 and the second flow path L2) can be adjusted (the pressure balance of the first flow path L1 and the second flow path L2 can be sought). In addition, since the pressure regulating flow path 120 is provided in the manifold 1, the amount of piping wiring can be reduced compared to the case where a pressure regulating flow path is separately provided outside the cooling module 100.

[0046] (2) In the cooling module 100 of (1), preferably, the valve 3 has a rotating shaft 31 and a valve body 32 that can rotate around the rotating shaft 31, and a circular annular groove 123 is formed on the manifold 1 with the rotating shaft 31 as the center. The annular groove 123 is opposite to the valve body 32 in the direction along the rotating shaft 31, and the pressure regulating flow path 120 includes the annular groove 123.

[0047] According to this configuration, the pressure regulating flow path 120 includes the annular groove 123 centered on the rotating shaft 31. Therefore, even when the valve 3 rotates, the first flow path L1 and the second flow path L2 can communicate with each other through the pressure regulating flow path 120.

[0048] (3) In the cooling module 100 of (2), preferably, a first valve body hole 325 and a second valve body hole 326 are formed on the valve 3 and penetrate the valve body 32 in the direction along the rotating axis 31, and a plurality of long holes 114a are formed on the manifold 1 with the direction in which the annular groove 123 extends as the length direction, the first flow path L1 is connected to the pressure regulating flow path 120 via the first valve body hole 325 and the long holes 114a, and the second flow path L2 is connected to the pressure regulating flow path 120 via the second valve body hole 326 and the long holes 114a.

[0049] According to this configuration, since the first flow path L1 and the second flow path L2 communicate with each other via the first valve body hole 325 and the second valve body hole 326 formed in the valve 3 and the long hole 114a formed in the manifold 1, the pressure of the fluid flow path L can be adjusted.

[0050] (4) In the cooling module 100 of (2) or (3), preferably, the manifold 1 further includes an insertion hole portion 113 into which the rotating shaft 31 is inserted, and a plurality of ribs 115a extending in a direction orthogonal to the direction along the rotating shaft 31, and the plurality of ribs 115a are radially arranged with the insertion hole portion 113 as the center.

[0051] According to this configuration, the plurality of ribs 115a extending in a direction perpendicular to the direction along the rotation shaft 31 can increase the rigidity of the insertion hole 113 into which the rotation shaft 31 is inserted, thereby stably supporting the rotation shaft 31. Thus, the valve 3 can rotate more stably.

[0052] [Other embodiments] Next, other embodiments of the cooling module will be described.

[0053] (a) In the above embodiment, the pressure regulating flow path 120 is opposed to the valve 3 in the Z direction, but the pressure regulating flow path 120 may be opposed to the valve 3 in the radial direction DR.

[0054] (b) In the cooling module 100, the number of the pumps 2 formed integrally with the manifold 1 is not particularly limited. In addition, the number of the valves 3 formed integrally with the manifold 1 is also not particularly limited.

[0055] (c) The reserve tank T may be provided only in the second circulation loop C2 instead of the first circulation loop C1.

[0056] (d) The first valve body hole 325 and the second valve body hole 326 may be formed in one of the two valves 3 or in both of the two valves 3, and the first flow path L1 and the second flow path L2 may be connected via the first valve space 31a, the first valve body hole 325, the hole portion 114, the second valve body hole 326, the second valve space 31b and the pressure regulating flow path 120.

[0057] (e) The positions of the first valve body hole 325 and the second valve body hole 326 in the second valve wall 322 may be interchangeable. Specifically, in the above embodiment, the first valve body hole 325 is provided on the side of the second valve wall 322 that partitions the first valve space 31a (i.e., the first flow path L1 side), but may be provided on the second valve wall 322 on the second valve space 31b side (i.e., the second flow path L2 side). In this case, the second valve body hole 326 is provided on the side of the second valve wall 322 that partitions the first valve space 31a (i.e., the first flow path L1 side).

[0058] (f) In the above embodiment, the case where the plurality of ribs 115a are arranged radially with the insertion hole 113 as the center is described as an example, but the plurality of ribs 115a may not be arranged radially. Therefore, the number of ribs 115a is not limited to four. The number of ribs 115a can be any number as long as the rigidity of the peripheral portion 113b is maintained and the stable rotation of the valve body 32 of the valve 3 is not hindered, for example, two to three, or five or more.

[0059] (g) In the above embodiment, the case where the hole portion 114 has four long holes 114a is described, but the number of the long holes 114a is not limited to four, and may be two, three, or five or more. In addition, the shape of the hole (formed in the second housing 12) of the hole portion 114 is not limited to a long hole with the circumferential direction DC as the length direction. The hole formed in the second housing 12 can be formed as long as the first flow path L1 and the second flow path L2 can be connected via the pressure regulating flow path 120, and may be circular, elliptical, fan-shaped, etc. when viewed along the Z direction.

[0060] (h) In the first valve body hole 325, the flow path cross-sectional area on the first valve space 31a side may not be formed small in order to reduce the flow rate of the fluid F. In addition, the shape of the first valve body hole 325 observed along the Z direction is not limited to a circle, and may be set to a shape other than a circle, such as an ellipse, a triangle, or a rectangle. Similarly, the shape of the second valve body hole 326 observed along the Z direction is not limited to a sector shape, and may be set to a shape other than a sector shape, such as an ellipse, a triangle, or a rectangle.

[0061] (i) The auxiliary equipment connected to the fluid flow path L is not limited to the above-mentioned embodiment. For example, a DC-DC converter (DC-to-DC converter), a charger, etc. may be connected to the fluid flow path L.

[0062] (j) It should be noted that, as long as no contradiction occurs, the structure disclosed in each of the above embodiments may also be used in combination with the structure disclosed in other embodiments. With regard to other structures, the embodiments disclosed in this specification are only examples in all aspects. Therefore, various changes can be appropriately made within the scope of not departing from the gist of the present invention. [Industrial Applicability]

[0063] The technology involved in the present invention can be applied to a cooling module. Explanation of symbols

[0064] 1: manifold, 3: valve, 31: rotating shaft, 32: valve body, 100: cooling module, 113: insertion hole, 114a: long hole, 115a: rib, 120: pressure regulating flow path, 123: annular groove, 325: first valve body hole, 326: second valve body hole, F1: first fluid, F2: second fluid, L1: first flow path, L2: second flow path.

Claims

1. A cooling module, comprising: a manifold including a first flow path through which a first fluid flows and a second flow path through which a second fluid flows; and a valve installed in the manifold and controlling the flow of the first fluid and the second fluid, The manifold includes a pressure regulating flow path that regulates the pressure between the first flow path and the second flow path.

2. The cooling module according to claim 1, wherein: The valve includes a rotation axis and a valve body that can rotate around the rotation axis. The manifold is provided with an annular groove centered on the rotation axis, the annular groove being opposite to the valve body in a direction along the rotation axis. The pressure regulating flow path includes the annular groove.

3. The cooling module according to claim 2, wherein: The valve is formed with a first valve body hole and a second valve body hole penetrating the valve body in a direction along the rotation axis. The manifold is formed with a plurality of long holes whose length direction is the direction in which the annular groove extends. The first flow path communicates with the pressure regulating flow path via the first valve body hole and the long hole, and the second flow path communicates with the pressure regulating flow path via the second valve body hole and the long hole.

4. The cooling module according to claim 2 or 3, wherein: The manifold further comprises: an insertion hole portion into which the rotating shaft is inserted; and a plurality of ribs, the plurality of ribs extending in a direction orthogonal to the direction along the rotation axis, The plurality of ribs are provided radially around the insertion hole.

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