Flow path forming device

Abstract

A flow path forming device (10) is provided with a structure (12) including a plurality of fluid flow paths (121-128) that are independent from each other. Part of adjacent fluid flow paths among the plurality of fluid flow paths are disposed so as to intersect in a vertical manner in a predetermined assembly direction (Du). The structure is configured by integrally joining two split bodies, i.e., first members (14, 18) and second members (16, 20), in a state of being assembled in an assembly direction.

Description

Cross Reference to Related Applications This application is based on Japanese Patent Application No. 2023-062944 filed on April 7, 2023, the content of which is incorporated herein by reference. TECHNICAL FIELD

[0001] The present disclosure relates to a flow path forming device. BACKGROUND

[0002] In the past, it is known to apply a pump device with a multi-way valve to a thermal management system of a vehicle (for example, refer to Patent Literature 1). In the pump device described in Patent Literature 1, a flow path forming device that introduces fluid to or discharges fluid from the multi-way valve is composed of an integrated plate main body in which a plurality of fluid flow paths are formed, and a pair of end plates that sandwich the integrated plate main body.

[0003] PRIOR ART DOCUMENTS PATENT LITERATURE Patent Literature 1: Specification of Chinese Patent Application Publication No. 115388193 SUMMARY

[0004] However, for example, if the number of functional members outside the flow path forming device increases, the flow path of the flow path forming device will become complex, and the utilization efficiency of heat in the thermal management system decreases due to an increase in flow path length and pressure loss. In addition, since the volume of the flow path forming device becomes large, the mountability to the vehicle decreases.

[0005] In view of this, the present inventors have researched a configuration in which mutually independent flow paths are three-dimensionally crossed with each other in order to shorten the flow path length in the flow path forming device. The configuration in which mutually independent flow paths are three-dimensionally crossed with each other can be realized by joining three or more members, but there is a concern that an increase in the number of joined sites leads to fluid leakage, and an increase in the number of members leads to an increase in cost. This is also concerned in the case where the number of functional members outside the flow path forming device is small.

[0006] An object of the present disclosure is to provide a flow path forming device that can three-dimensionally cross mutually independent flow paths with each other while reducing the number of members to be joined.

[0007] According to one aspect of the present disclosure, The flow path forming device includes a configuration body including a plurality of fluid flow paths that are independent of each other, A portion of adjacent fluid flow paths among the plurality of fluid flow paths is disposed in a three-dimensionally crossed manner in a prescribed assembly direction, The configuration body is integrally joined in a state in which the two divided bodies of the first member and the second member are assembled in the assembly direction.

[0008] Thus, if at least a part of the adjacent fluid flow paths are arranged so as to be three-dimensionally crossed in the assembling direction, it is possible to increase the density of the fluid flow paths while avoiding interference between the fluid flow paths.

[0009] Further, the flow path forming device of the present disclosure is a configuration in which at least a part of the adjacent fluid flow paths are three-dimensionally crossed by joining the two divided bodies of the first member and the second member, and it is possible to three-dimensionally cross the independent flow paths from each other while reducing the number of members to be joined.

[0010] In particular, according to the flow path forming device of the present disclosure, the number of joining sites between the members is reduced compared to the case where a configuration is realized in which three or more members are joined to three-dimensionally cross the flow paths from each other, and it is possible to suppress leakage of fluid from the joining sites between the members. Further, since the number of members is also reduced, a cost reduction effect is also expected.

[0011] Here, the "independent flow path" refers to a flow path that does not communicate with other flow paths in the flow path forming device, and is not limited in relation to other flow paths outside the flow path forming device, and there can be cases where it communicates with other flow paths outside the flow path forming device. The adjacent fluid flow paths refer to flow paths that contain a site where they approach each other without sandwiching other flow paths therebetween.

[0012] Further, the bracketed reference numerals attached to each of the constituent elements and the like indicate an example of the correspondence relationship with the specific constituent elements and the like described in the embodiments described later. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a schematic configuration view of a fluid control system including the flow path forming device of the first embodiment.

[0014] Figure 2 is a schematic perspective view of the flow path forming device.

[0015] Figure 3 is a schematic perspective exploded view of the flow path forming device.

[0016] Figure 4 is a schematic perspective view of the first member.

[0017] Figure 5 is a schematic perspective view of the second member.

[0018] Figure 6 is a schematic perspective view of the second member as viewed from the direction of the arrow VI of Figure 5

[0019] is a VII-VII sectional view of Figure 7 Figure 5 ​​

[0020] Figure 8 is an explanatory view for explaining engagement of the first member and the second member.

[0021] Figure 9 is a schematic configuration view of a fluid control system including a manifold of the first embodiment.

[0022] Figure 10 is a schematic perspective view of a manifold of the first embodiment.

[0023] Figure 11 is a schematic perspective exploded view of a manifold of the first embodiment.

[0024] Figure 12 is a schematic perspective exploded view of a flow path forming device of the first modification of the first embodiment.

[0025] Figure 13 is a schematic perspective view of the flow path forming device from the direction of arrow XIII of Figure 12 .

[0026] Figure 14 is a schematic perspective exploded view of a flow path forming device of the second modification of the first embodiment.

[0027] Figure 15 is a schematic perspective exploded view of the flow path forming device from the direction of arrow XV of Figure 14 .

[0028] Figure 16 is a schematic configuration view of a fluid control system including a flow path forming device of the third modification of the first embodiment.

[0029] Figure 17 is a schematic view of a flow path forming device of the second embodiment.

[0030] Figure 18 is a schematic perspective view of a flow path forming device of the second embodiment.

[0031] Figure 19 is a schematic perspective view of the flow path forming device from the direction of arrow XIX of Figure 18 .

[0032] Figure 20 is a schematic plan view of a flow path forming device.

[0033] Figure 21 is a cross-sectional view of XXI-XXI of Figure 20 .

[0034] Figure 22 is a schematic plan view of a second member.

[0035] Figure 23 This is a schematic diagram showing the mounting surface of the flow path forming device in the valve assembly.

[0036] Figure 24 It is a schematic three-dimensional exploded view of the flow path forming device.

[0037] Figure 25 This is a schematic perspective view of a flow path forming apparatus according to other embodiments.

[0038] Figure 26 This is a schematic exploded perspective view of a flow path forming apparatus according to other embodiments. Detailed Implementation

[0039] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. Furthermore, in the following embodiments, the same reference numerals are used to denote the same or equivalent matters as described in the previous embodiments, and their descriptions are sometimes omitted. Additionally, in embodiments where only a portion of the constituent elements is described, the other portions of the constituent elements can be applied to the constituent elements described in the previous embodiments. Regarding the following embodiments, the various embodiments can be partially combined with each other, even without explicit indication, as long as it does not particularly hinder combination.

[0040] (First Implementation) Reference Figures 1-8 This embodiment will now be described. In this embodiment, an example of applying the flow path forming apparatus 10 of this disclosure to a fluid control system 1 mounted on an electric vehicle will be described.

[0041] The fluid control system 1 is a heat distribution system for appropriately distributing heat generated in the refrigeration cycle and heat generated in various heat-generating devices to various devices that require heat via a fluid that serves as a heat transport medium.

[0042] like Figure 1 As shown, the fluid control system 1 includes fluid devices such as a pump device PD that causes fluid to flow, a valve device VD that switches the flow path of the fluid, and a heat device SD that serves as a temperature control object or a heat source. Additionally, it includes a flow path forming device 10 that connects the pump device PD, valve device VD, heat device SD, and other fluid devices, as well as a fluid circulation loop (not shown) having multiple fluid piping FPs.

[0043] The valve device VD in this embodiment is composed of a five-way valve with five ports P1 to P5. A flow path forming device 10 is connected to the first port P1 and the second port P2 of the valve device VD, and fluid piping FP is connected to the third port P3, the fourth port P4, and the fifth port P5.

[0044] Further, in Figure 1 , as the fluid control system 1, a structure in which one each of the pump device PD, the valve device VD, the heat device SD, and the flow path forming device 10 is provided is exemplified, but the present application is not limited thereto, and the fluid control system 1 can be a structure different from that shown in Figure 1 .

[0045] The flow path forming device 10 is a manifold configured by collecting a plurality of flow paths through which fluid flows. The fluid flowing in the plurality of fluid flow paths included in the flow path forming device 10 is cooling water. As the cooling water, for example, antifreeze can be exemplified, but it can also be a liquid containing water other than antifreeze.

[0046] The flow path forming device 10 has a structure body 12 including a plurality of fluid flow paths independent of each other. The structure body 12 is connected to an external device to which fluid is introduced or from which fluid is discharged via a fluid flow path or the like.

[0047] The outer shape of the structure body 12 in plan view is substantially T-shaped. Specifically, the structure body 12 is configured by combining a first portion 12A extending in a straight line and a second portion 12B extending in a straight line so as to be orthogonal to the first portion 12A and to connect one end portion to a portion of the first portion 12A in the middle in the direction of extension. Further, the structure body 12 can also combine the first portion 12A and the second portion 12B in a manner of obliquely intersecting.

[0048] In addition, as shown in Figure 2 , the structure body 12 is provided with mounting leg portions 12C and 12D at positions corresponding to both end portions of the first portion 12A, respectively, and is also provided with mounting leg portions 12E and 12F at positions corresponding to both end portions of the second portion 12B, respectively.

[0049] Each of the mounting leg portions 12C, 12D, 12E, and 12F is a portion connected to an external device. Each of the mounting leg portions 12C, 12D, 12E, and 12F extends in a direction substantially orthogonal to the direction of extension of each of the first portion 12A and the second portion 12B. Further, the length in the direction of extension of each of the mounting leg portions 12C, 12D, 12E, and 12F of the present example is uniform, but is not limited thereto, and the lengths in the direction of extension thereof can also be different.

[0050] In the structure body 12 of the present embodiment, the three mounting leg portions 12C, 12D, and 12F are arranged in a row in the direction of extension of the first portion 12A. Specifically, in the structure body 12, the mounting leg portion 12F provided at the end portion of the second portion 12B is arranged between the two mounting leg portions 12C and 12D provided at both ends of the first portion 12A.

[0051] In the structure 12 of the present embodiment, two fluid flow paths, a first fluid flow path 121 connecting the heat device SD and the valve device VD, and a second fluid flow path 122 connecting the pump device PD and the valve device VD, are formed. In the present embodiment, the fluid devices of the pump device PD, the valve device VD, and the heat device SD constitute "external devices".

[0052] The first fluid flow path 121 has a first connection port portion 121a connected to the heat device SD, a second connection port portion 121b connected to the valve device VD, and a first intermediate flow path portion 121c connecting the first connection port portion 121a and the second connection port portion 121b. The first intermediate flow path portion 121c is formed inside a first portion 12A in the structure 12. The first connection port portion 121a and the second connection port portion 121b are formed inside the mounting leg portions 12C, 12D provided at both end portions of the first portion 12A.

[0053] The second fluid flow path 122 has a third connection port portion 122a connected to the pump device PD, a fourth connection port portion 122b connected to the valve device VD, and a second intermediate flow path portion 122c connecting the third connection port portion 122a and the fourth connection port portion 122b. The second intermediate flow path portion 122c is formed inside a second portion 12B in the structure 12. The third connection port portion 122a and the fourth connection port portion 122b are formed inside the mounting leg portions 12E, 12F provided at both end portions of the second portion 12B.

[0054] The first fluid flow path 121 and the second fluid flow path 122 are disposed so that at least a part of them cross each other in a direction of assembly Du described later. As shown in FIG. 1, such a structure 12 is constituted by assembling the two divided bodies of the first member 14 and the second member 16 in a prescribed direction of assembly Du. Figure 3

[0055] Here, in the present embodiment, a first direction orthogonal to the direction of assembly Du is set as a longitudinal direction Dd, and a second direction orthogonal to both the direction of assembly Du and the longitudinal direction Dd is set as a lateral direction Dw. In addition, the direction of assembly Du is set as a vertical direction Dv. Figure 2 Figure 3 The posture of the structure 12 shown in FIGS. 1, 2, and the like is an example. The posture of the structure 12 in a state of being mounted on a vehicle is not limited to the posture shown in FIGS. 1, 2, and the like. Figure 2 Figure 3

[0056] The first member 14 and the second member 16 are each composed of a thermoplastic resin. The first member 14 and the second member 16 are injection-molded products formed using a mold, and are formed in a shape without an undercut in order to be able to pull out the mold in the direction of assembly Du.

[0057] ​​​​First, the first member 14 will be described, which is disposed on one side in the assembly direction Du with respect to the second member 16. As shown in Figure 3 and Figure 4 , the first member 14 is a molded product in which a first recessed portion 141 that is open to the other side in the assembly direction Du and a first cover portion 142 are integrally molded. In the present embodiment, the first recessed portion 141 constitutes a "first flow path site", and the first cover portion 142 constitutes a "fourth flow path site".

[0058] The first recessed portion 141 constitutes a part of the first site 12A and extends along the longitudinal direction Dd. The first recessed portion 141 has a first bottom wall portion 141a that extends along the longitudinal direction Dd, and four first side wall portions 141b to 141e that protrude from the four sides of the first bottom wall portion 141a to the other side in the assembly direction Du.

[0059] The first cover portion 142 constitutes a part of the second site 12B and extends along the lateral direction Dw. One end portion of the first cover portion 142 in the lateral direction Dw is connected to the side wall portion 141b of the first recessed portion 141.

[0060] The first member 14 thus configured is a molded product in which the first recessed portion 141 and the first cover portion 142 are integrally molded. The first member 14 is a shape without undercuts in which a mold can be pulled out in the assembly direction Du, because there are no sites that oppose each other in the assembly direction Du.

[0061] Next, the second member 16 will be described, which is disposed on the other side in the assembly direction Du with respect to the first member 14. As shown in Figure 5 and Figure 6 , the second member 16 is a molded product in which a second recessed portion 161, a second cover portion 162, a first cylindrical portion 163, a second cylindrical portion 164, a third cylindrical portion 165, and a fourth cylindrical portion 166 are integrally molded. In the present embodiment, the second recessed portion 161 constitutes a "third flow path site", and the second cover portion 162 constitutes a "second flow path site".

[0062] The second recessed portion 161 constitutes a part of the second site 12B and extends along the lateral direction Dw. The second recessed portion 161 has a site that is open to one side in the assembly direction Du. The second recessed portion 161 has a second bottom wall portion 161a that extends along the lateral direction Dw, and four second side wall portions 161b to 161e that protrude from the four sides of the second bottom wall portion 161a to one side in the assembly direction Du.

[0063] Specifically, as shown in Figure 5 , Figure 7 , in the second recessed portion 161, the opening portion on the one end side in the lateral direction Dw is closed by the second cover portion 162, and the sites other than this are open to one side in the assembly direction Du.

[0064] The second lid portion 162 constitutes a part of the second portion 12B and extends along the longitudinal direction Dd. The second lid portion 162 is connected to the second recessed portion 161 in a manner to cover an opening portion of one end side in the lateral direction Dw. The portion of the second lid portion 162 that covers the second recessed portion 161 constitutes a cross formation portion 162a for making the first fluid flow path 121 and the second fluid flow path 122 three-dimensionally cross. In other words, the cross formation portion 162a functions as a partition wall that separates the first intermediate flow path portion 121c and the second intermediate flow path portion 122c.

[0065] The second lid portion 162 is connected to the first cylinder portion 163 and the second cylinder portion 164 at a portion on the other side in the assembly direction Du. Specifically, the first cylinder portion 163 is connected to the second lid portion 162 at an end portion on one side in the longitudinal direction Dd, and the second cylinder portion 164 is connected to the second lid portion 162 at an end portion on the other side in the longitudinal direction Dd.

[0066] The first cylinder portion 163 is a portion that constitutes a square tube shape of the mounting leg portion 12C and is connected to the second lid portion 162 in a manner to protrude toward the other side in the assembly direction Du. An opening on the other side in the assembly direction Du of the first cylinder portion 163 is connected to the heat device SD. A first connection port portion 121a is formed on the inner side of the first cylinder portion 163. The first connection port portion 121a is open toward the other side in the assembly direction Du.

[0067] The second cylinder portion 164 is a portion that constitutes a square tube shape of the mounting leg portion 12D and is connected to the second lid portion 162 in a manner to protrude toward the other side in the assembly direction Du. An opening on the other side in the assembly direction Du of the second cylinder portion 164 is connected to the valve device VD. A second connection port portion 121b is formed on the inner side of the second cylinder portion 164. The second connection port portion 121b is open toward the other side in the assembly direction Du.

[0068] In addition, the second recessed portion 161 is connected to the third cylinder portion 165 and the fourth cylinder portion 166 at a portion on the other side in the assembly direction Du. Specifically, the third cylinder portion 165 is connected to the second recessed portion 161 at an end portion on one side in the lateral direction Dw, and the fourth cylinder portion 166 is connected to the second recessed portion 161 at an end portion on the other side in the lateral direction Dw.

[0069] The third cylinder portion 165 is a portion that constitutes a square tube shape of the mounting leg portion 12E and is connected to the second recessed portion 161 in a manner to protrude toward the other side in the assembly direction Du. An opening on the other side in the assembly direction Du of the third cylinder portion 165 is connected to the pump device PD. A third connection port portion 122a is formed on the inner side of the third cylinder portion 165. The third connection port portion 122a is open toward the other side in the assembly direction Du.

[0070] The fourth cylindrical portion 166 is a portion of a square cylindrical shape that constitutes the mounting leg portion 12F, and is connected to the second recessed portion 161 in a manner that protrudes to the other side in the assembly direction Du. An opening of the fourth cylindrical portion 166 on the other side in the assembly direction Du is connected to the valve device VD. A fourth connecting port portion 122b is formed on the inner side of the fourth cylindrical portion 166.

[0071] Specifically, the fourth cylindrical portion 166 is connected to a portion of the second recessed portion 161 that is closed by the intersection formation portion 162a of the second cover portion 162. Thus, the fourth connecting port portion 122b is opened to the other side in the assembly direction Du with respect to the intersection formation portion 162a.

[0072] The second member 16 thus configured is a molded product in which the second recessed portion 161, the second cover portion 162, the first cylindrical portion 163, the second cylindrical portion 164, the third cylindrical portion 165, and the fourth cylindrical portion 166 are integrally molded. The second member 16 is a shape without a undercut in which the mold can be pulled out in the assembly direction Du because there are no portions that oppose each other in the assembly direction Du.

[0073] As shown in FIG. 1, the flow path formation device 10 is configured by joining the first member 14 and the second member 16 in a state in which they are assembled in the assembly direction Du. Figure 8 The first member 14 and the second member 16 are joined by an element of adhesion, fusion, or welding. Specifically, the structure body 12 is configured by joining the first member 14 and the second member 16 using an adhesive GL.

[0074] However, the joining element when joining the first member 14 and the second member 16 is preferably determined in accordance with the material that constitutes the first member 14 and the second member 16.

[0075] For example, in a case in which the first member 14 and the second member 16 are constituted using a resin material that has poor wettability, if the first member 14 and the second member 16 are adhered using the adhesive GL, it is sometimes difficult to ensure the joining strength and the heat resistance. In this case, for example, it is preferable to join the first member 14 and the second member 16 by fusion. Thereby, it is possible to ensure the joining strength and the heat resistance. In addition, it is possible to expect that the risk of generating volatile organic substances at the time of drying of the adhesive GL and the generation of toxic gases at the time of incineration are suppressed.

[0076] In addition, in a case in which the first member 14 and the second member 16 are constituted using a metal material, it is preferable to join the first member 14 and the second member 16 by welding. Thereby, it is possible to expect that the risk of generating volatile organic substances at the time of drying of the adhesive GL and the concern of generating toxic gases at the time of incineration are suppressed while sufficiently ensuring the joining strength and the heat resistance.

[0077] The structure 12 thus obtained is a structure in which a portion of the first fluid flow path 121 and the second fluid flow path 122 formed inside thereof are three-dimensionally crossed in the assembly direction Du.

[0078] The first intermediate flow path portion 121c of the first fluid flow path 121 is formed by the first recessed portion 141 formed in the first member 14 and the second cover portion 162 formed in the second member 16 at a position opposite to the first recessed portion 141. In addition, the second intermediate flow path portion 122c of the second fluid flow path 122 is formed by the second recessed portion 161 formed in the second member 16, the first cover portion 142 formed in the first member 14 at a position opposite to the second recessed portion 161, and the crossing formation portion 162a of the second cover portion 162. Further, the first intermediate flow path portion 121c and the second intermediate flow path portion 122c are separated by the crossing formation portion 162a so as not to communicate with each other. Thus, the first fluid flow path 121 and the second fluid flow path 122 are respectively configured as independent flow paths.

[0079] In the present embodiment, the first fluid flow path 121 corresponds to a "first flow path" in the adjacent fluid flow path on one side in the assembly direction Du, and the second fluid flow path 122 corresponds to a "second flow path" in the adjacent fluid flow path on the other side in the assembly direction Du.

[0080] Here, Figures 9-11 is an explanatory view for explaining a manifold MF of a comparative example of the flow path formation device 10. The outer shape of the manifold MF of the comparative example in plan view is a substantially cross shape. Further, for the constituent elements in the manifold MF corresponding to the constituent elements of the flow path formation device 10, the same reference numerals as those of the constituent elements of the flow path formation device 10 are attached for convenience of explanation.

[0081] As Figure 9 shown, the manifold MF is configured by a structure in which a first portion 12A extending linearly in the longitudinal direction Dd and a second portion 12B extending linearly in the transverse direction Dw so as to cross the first portion 12A are combined.

[0082] As Figure 10 shown, the manifold MF is arranged in such a manner that mounting leg portions 12E, 12F provided at both end portions of the second portion 12B do not coincide with two mounting leg portions 12C, 12D provided at both ends of the first portion 12A in the extension direction of the first portion 12A.

[0083] The manifold MF is formed with a first intermediate flow path portion 121c of the first fluid flow path 121 inside the first portion 12A, and is formed with a first connection port portion 121a and a second connection port portion 121b inside the mounting leg portions 12C and 12D. Further, the manifold MF is formed with a second intermediate flow path portion 122c of the second fluid flow path 122 inside the second portion 12B, and is formed with a third connection port portion 122a and a fourth connection port portion 122b inside the mounting leg portions 12E and 12F.

[0084] With regard to such a manifold MF, in the portion where the first portion 12A and the second portion 12B intersect, two cylindrical bodies that form the respective fluid flow paths 121 and 122 are present in line in the assembly direction Du, and therefore it is necessary to use three or more components due to manufacturing constraints and the like. For example, as shown in FIG. 6, the manifold MF can be implemented by joining the upper portion Pu, the lower portion Pd, and the intermediate portion Pm in an assembled state. However, in the case where the manifold MF is configured using three or more components, the joining portions of the components increase, and therefore there is concern that fluid leakage will occur, and that the number of components will increase, leading to an increase in cost. Figure 11

[0085] In contrast to this, the flow path forming device 10 of the present embodiment is configured so that at least a portion of the first fluid flow path 121 and the second fluid flow path 122 that are adjacent to each other are three-dimensionally intersected by joining the first component 14 and the second component 16, which are two divided bodies. Due to this, it is possible to three-dimensionally intersect mutually independent flow paths while reducing the number of components that are joined. As a result, it is possible to suppress fluid leakage. Further, since the number of components is also reduced, it is also possible to expect an effect of reducing cost.

[0086] Further, the flow path forming device 10 of the present embodiment has the following features.

[0087] ​(1) Specifically, the first fluid flow path 121 is formed by the first recess 141 formed in the first member 14 and open to the other side in the assembly direction Du and the second cover portion 162 formed in the second member 16 at a position opposite the first recess 141. In addition, the second fluid flow path 122 is formed by the second recess 161 formed in the second member 16 and having a portion open to the one side in the assembly direction Du, the first cover portion 142 formed in the first member 14 at a position opposite the second recess 161, and the cross formation portion 162a. The cross formation portion 162a is provided in the second cover portion 162 at a position where the first fluid flow path 121 and the second fluid flow path 122 intersect in three dimensions. The first fluid flow path 121 and the second fluid flow path 122 are separated by the cross formation portion 162a. The first member 14 is a molded product in which the first recess 141 and the first cover portion 142 are integrally molded. The second member 16 is a molded product in which the second recess 161 and the second cover portion 162 are integrally molded. Thus, by joining the two divided bodies of the first member 14 and the second member 16, a configuration in which at least a portion of adjacent fluid flow paths intersect in three dimensions can be achieved.

[0088] (2) The first fluid flow path 121 has a first connection port portion 121a and a second connection port portion 121b for introducing or discharging fluid with an external device, and a first intermediate flow path portion 121c connecting the two. The second fluid flow path 122 has a third connection port portion 122a and a fourth connection port portion 122b for introducing or discharging fluid with an external device, and a second intermediate flow path portion 122c connecting the two. Also, a portion of the adjacent first intermediate flow path portion 121c and the second intermediate flow path portion 122c are disposed so as to intersect in three dimensions in the assembly direction Du. Thus, the density of the first intermediate flow path portion 121c and the second intermediate flow path portion 122c can be increased while avoiding interference between the adjacent first intermediate flow path portion 121c and the second intermediate flow path portion 122c.

[0089] (3) In the case where the cross formation portion 162a of the second member 16 and the second bottom wall portion 161a of the second recess 161 coincide in the assembly direction Du, the manufacturing of the second member 16 is restricted by, for example, back-drafting, and in some cases, the process of manufacturing the second member 16 becomes complicated.

[0090] Therefore, in the second member 16 of the present embodiment, the portion of the second fluid flow path 122 including the second intermediate flow path portion 122c that constitutes the fourth connection port portion 122b is opened to the other side of the assembly direction Du with respect to the intersection formation portion 162a. In this way, if the fourth connection port portion 122b connected to the second intermediate flow path portion 122c is opened to the other side of the assembly direction Du with respect to the intersection formation portion 162a, it is possible to suppress a decrease in the manufacturability of the second member 16 due to manufacturing constraints such as an upside-down shape.

[0091] (4) The third connection port portion 122a in the second fluid flow path 122 is opened to the other side of the assembly direction Du in the second member 16. In this way, if both of the pair of connection port portions 122a, 122b in the second fluid flow path 122 are opened in the assembly direction Du, it is possible to suppress the pair of connection port portions 122a, 122b from becoming an upside-down shape or the like.

[0092] (5) The pair of connection port portions 121a, 121b in the first fluid flow path 121 are opened in the assembly direction Du in the second member 16. In this way, if the pair of connection port portions 121a, 121b in the first fluid flow path 121 are opened in the assembly direction Du, it is possible to suppress the pair of connection port portions 121a, 121b from becoming an upside-down shape or the like.

[0093] (6) In a case where the first member 14 and the second member 16 are joined by being mechanically coupled by a coupling member such as a bolt, a screw, or the like, a coupling member, a sealing material, or the like is required, and the number of components increases.

[0094] In contrast to this, in the configuration 12 of the present embodiment, the first member 14 and the second member 16 are joined by an element of joining such as adhesion, fusion, or welding. Due to this, it is possible to omit a coupling member such as a bolt, a screw, or the like, a sealing material, or the like, and suppress the number of components, and thus it is possible to achieve a reduction in cost.

[0095] (7) The fluid that flows through the first fluid flow path 121 and the second fluid flow path 122 is cooling water. The flow path formation device 10 of the present embodiment is capable of suppressing leakage of the cooling water in a configuration in which at least a portion of the adjacent first fluid flow path 121 and the second fluid flow path 122 are three-dimensionally intersected.

[0096] (First Embodiment Modification) In the above-described first embodiment, the flow path formation device 10 of the present disclosure was described in detail, but the above-described content is an example, and is not limited to the above-described content, and for example, can be modified as follows.

[0097] (First Modification) For example, as Figure 12 and Figure 13As shown, the flow path forming device 10 can also be configured such that the mounting leg 12E protrudes towards the assembly direction Du relative to the first component 14 rather than relative to the second component 16. In this case, the third connection port 122a in the second fluid flow path 122 opens into the first component 14 towards the assembly direction Du. This also helps to suppress manufacturing constraints such as the pair of connection ports 122a, 122b becoming an undercut shape.

[0098] (Second variation) For example, such as Figure 14 and Figure 15 As shown, the flow path forming apparatus 10 can also be configured such that the mounting legs 12C, 12E protrude towards the assembly direction Du relative to the first component 14 rather than relative to the second component 16. In this case, the first connection port 121a in the first fluid flow path 121 opens towards the assembly direction Du in the first component 14. Furthermore, the third connection port 122a in the second fluid flow path 122 opens towards the assembly direction Du in the first component 14. This also helps to suppress manufacturing constraints such as the pair of connection ports 122a, 122b becoming an undercut shape.

[0099] Furthermore, the flow path forming device 10 may also be arranged such that at least one of the mounting legs 12C, 12D, 12E protrudes toward the side facing the assembly direction Du relative to the first component 14 rather than relative to the second component 16.

[0100] (Third variation) The flow path forming device 10 can also be applied to valve devices VD other than five-way valves. For example, such as Figure 16 As shown, the flow path forming apparatus 10 can also be applied to a valve device VD consisting of a ten-way valve having ten ports P1 to P10. Furthermore, the external equipment connected to the flow path forming apparatus 10 is not limited to the pump device PD, the valve device VD, or the heat equipment SD, and can also be connected to other equipment.

[0101] (Second Implementation) Next, refer to Figures 17-24 The second embodiment will be described. In this embodiment, the differences from the first embodiment will be mainly described.

[0102] Figure 17 This is a schematic diagram showing a portion of the flow path forming apparatus 10 according to the second embodiment. (See attached diagram.) Figure 17 As shown, the structure 12 constituting the flow path forming apparatus 10 includes six fluid flow paths: a first fluid flow path 123, a second fluid flow path 124, a third fluid flow path 125, a fourth fluid flow path 126, a fifth fluid flow path 127, and a sixth fluid flow path 128. Furthermore, in Figure 17In FIGS. 1, 2, 3, 4, 5, and 6, solid arrows indicated by reference numerals 123 to 128 correspond to the flow of fluid in each fluid flow path 123 to 128.

[0103] The first fluid flow path 123 has a first connection port portion 123a connected to an external device not shown, a second connection port portion 123b connected to the valve device VD, and a first intermediate flow path portion 123c connecting the first connection port portion 123a and the second connection port portion 123b.

[0104] The second fluid flow path 124 has a third connection port portion 124a and a fourth connection port portion 124b connected to external devices not shown, and a second intermediate flow path portion 124c connecting the third connection port portion 124a and the fourth connection port portion 124b.

[0105] The third fluid flow path 125 has a fifth connection port portion 125a connected to an external device not shown, a sixth connection port portion 125b connected to the valve device VD, and a third intermediate flow path portion 125c connecting the fifth connection port portion 125a and the sixth connection port portion 125b.

[0106] The fourth fluid flow path 126 has a seventh connection port portion 126a connected to the valve device VD, an eighth connection port portion 126b connected to an external device not shown, and a fourth intermediate flow path portion 126c connecting the seventh connection port portion 126a and the eighth connection port portion 126b.

[0107] The fifth fluid flow path 127 has a ninth connection port portion 127a connected to the valve device VD, a tenth connection port portion 127b connected to an external device not shown, and a fifth intermediate flow path portion 127c connecting the ninth connection port portion 127a and the tenth connection port portion 127b.

[0108] The sixth fluid flow path 128 has an eleventh connection port portion 128a connected to the valve device VD, a twelfth connection port portion 128b connected to an external device not shown, and a sixth intermediate flow path portion 128c connecting the eleventh connection port portion 128a and the twelfth connection port portion 128b.

[0109] In the first fluid flow path 123 and the second fluid flow path 124, a portion of the first intermediate flow path portion 123c and the second intermediate flow path portion 124c is adjacent. The portion of the first intermediate flow path portion 123c and the second intermediate flow path portion 124c is disposed so as to be three-dimensionally crossed in the assembly direction Du.

[0110] In the third fluid flow path 125 and the fourth fluid flow path 126, a portion of the third intermediate flow path portion 125c and the fourth intermediate flow path portion 126c is adjacent. The portion of the third intermediate flow path portion 125c and the fourth intermediate flow path portion 126c is disposed so as to be three-dimensionally crossed in the assembly direction Du.

[0111] like Figure 18 and Figure 19 As shown, such a structure 12 is constructed by assembling two separate parts, a first part 18 and a second part 20, in a predetermined assembly direction Du.

[0112] The first component 18 and the second component 20 are each made of thermoplastic resin. The first component 18 and the second component 20 are injection molded articles formed using a mold, and are formed into a shape without undercut so that they can be pulled out of the mold in the assembly direction.

[0113] First, the first component 18 will be described. The first component 18 is positioned on one side of the assembly direction Du relative to the second component 20. For example... Figure 20 and Figure 21 As shown, the first component 18 has a flat portion 181 that extends orthogonally to the assembly direction Du, a first bulge portion 182 and a second bulge portion 183 that bulge toward one side of the assembly direction Du, and a first connector portion 184 that protrudes toward one side of the assembly direction Du.

[0114] The surface of the flat portion 181 in the assembly direction Du is flat. Furthermore, on the other side of the flat portion 181 in the assembly direction Du, a plurality of protrusions are formed for engaging with the second component 20; these are not shown. Moreover, these protrusions are not essential and can be omitted.

[0115] The first bulge 182 is provided corresponding to the portion of the second fluid flow path 124 that intersects the first fluid flow path 123. The portion of the first bulge 182 opposite to the second component 20 is recessed towards the assembly direction Du.

[0116] The second bulge 183 is provided corresponding to the portion of the fourth fluid flow path 126 that intersects the third fluid flow path 125. The portion of the second bulge 183 opposite to the second component 20 is recessed towards the assembly direction Du.

[0117] The first connector portion 184 forms the tenth connection port portion 127b of the fifth fluid flow path 127 and is provided at one end of the fifth intermediate flow path portion 127c. The first connector portion 184 opens toward the assembly direction Du.

[0118] The first component 18 thus constructed is a molded product integrally formed from the flat portion 181, the first bulge 182, the second bulge 183, and the first connector portion 184. Since the first component 18 has no parts facing each other in the assembly direction Du, it has a shape without undercuts that allows the mold to be pulled out along the assembly direction Du. Furthermore, in this embodiment, the first bulge 182 and the second bulge 183 constitute a "first recess" formed in the first component 18 and open to the other side in the assembly direction Du, and the flat portion 181 constitutes a "first cover portion." Additionally, in this embodiment, the first bulge 182 and the second bulge 183 constitute a "first flow path portion," and the flat portion 181 constitutes a "fourth flow path portion."

[0119] Next, the second component 20 will be described. The second component 20 is positioned on the opposite side of the assembly direction Du relative to the first component 18. For example... Figure 21 and Figure 22 As shown, the second component 20 has a base portion 21 comprising six flow path groove portions 211 to 216, a first step portion 22, a second step portion 23, and second to twelfth connector portions.

[0120] The base portion 21 is provided with six flow path grooves, namely a first flow path groove 211, a second flow path groove 212, a third flow path groove 213, a fourth flow path groove 214, a fifth flow path groove 215, and a sixth flow path groove 216.

[0121] A first flow path groove 211 is formed at a position corresponding to the first fluid flow path 123. The first flow path groove 211 is recessed to the other side in the assembly direction Du. The first flow path groove 211 includes a portion that is open to the side in the assembly direction Du.

[0122] The second flow path groove 212 is formed at a position corresponding to the second fluid flow path 124. The second flow path groove 212 is recessed on the other side of the assembly direction Du. The second flow path groove 212 is open on the side of the assembly direction Du.

[0123] The third flow path groove 213 is formed at a position corresponding to the third fluid flow path 125. The third flow path groove 213 is recessed on the other side of the assembly direction Du. The third flow path groove 213 includes a portion that is open on the side of the assembly direction Du.

[0124] A fourth flow path groove 214 is formed at a position corresponding to the fourth fluid flow path 126. The fourth flow path groove 214 is recessed on the other side of the assembly direction Du. The fourth flow path groove 214 is open on the side of the assembly direction Du.

[0125] A fifth flow path groove portion 215 is formed at a position corresponding to the fifth fluid flow path 127. The fifth flow path groove portion 215 is recessed toward the other side in the assembly direction Du. The fifth flow path groove portion 215 includes a portion that is open to the one side in the assembly direction Du.

[0126] A sixth flow path groove portion 216 is formed at a position corresponding to the sixth fluid flow path 128. The sixth flow path groove portion 216 is recessed toward the other side in the assembly direction Du. The sixth flow path groove portion 216 is open to the one side in the assembly direction Du.

[0127] A first step portion 22 is provided at a portion in the second flow path groove portion 212 that intersects the first flow path groove portion 211. Specifically, the first step portion 22 is provided at a portion in the second member 20 that opposes the first bulging portion 182. The first step portion 22 bulges from the bottom of the second flow path groove portion 212 toward the one side in the assembly direction Du in a manner that covers the opening portion of the one end side of the first flow path groove portion 211. The first step portion 22 functions as a partition wall that separates the first intermediate flow path portion 123c and the second intermediate flow path portion 124c. In the present embodiment, the first step portion 22 constitutes a "cross formation portion" for making the first intermediate flow path portion 123c and the second intermediate flow path portion 124c cross three-dimensionally.

[0128] A second step portion 23 is provided at a portion in the fourth flow path groove portion 214 that intersects the third flow path groove portion 213. Specifically, the second step portion 23 is provided at a portion in the second member 20 that opposes the second bulging portion 183. The second step portion 23 bulges from the bottom of the fourth flow path groove portion 214 toward the one side in the assembly direction Du in a manner that covers the opening portion of the one end side of the third flow path groove portion 213. The second step portion 23 functions as a partition wall that separates the third intermediate flow path portion 125c and the fourth intermediate flow path portion 126c. In the present embodiment, the second step portion 23 constitutes a "cross formation portion" for making the third intermediate flow path portion 125c and the fourth intermediate flow path portion 126c cross three-dimensionally.

[0129] The second to twelfth connector portions are connected to the other side in the assembly direction Du of the base portion 21. The second to twelfth connector portions protrude from the one side in the assembly direction Du toward the other side, and are open to the other side in the assembly direction Du. The other side in the assembly direction Du of the second to twelfth connector portions is connected to the external device and the valve device VD. Furthermore, as shown in FIG. 1, the valve device VD of the present embodiment is formed with five ports P1 to P5 on the mounting surface of the flow path formation device 10. Figure 23

[0130] ​The second connector portion constitutes a first connection port portion 123a of the first fluid flow path 123 and is provided at a position corresponding to one end portion of the first intermediate flow path portion 123c. The second connector portion is connected to an external device. The first connection port portion 123a is open to the other side in the assembly direction Du, for which a drawing is not shown.

[0131] The third connector portion 24 constitutes a second connection port portion 123b of the first fluid flow path 123 and is provided at a position corresponding to the other end portion of the first intermediate flow path portion 123c. The third connector portion 24 is connected to the first port PI of the valve device VD. Specifically, the third connector portion 24 is connected to the portion where the first step portion 22 is provided. The second connection port portion 123b is open to the other side in the assembly direction Du with respect to the first step portion 22 constituting the "cross formation portion".

[0132] The fourth and fifth connector portions constitute a third connection port portion 124a and a fourth connection port portion 124b of the second fluid flow path 124 and are provided at positions corresponding to both end portions of the second intermediate flow path portion 124c. The fourth and fifth connector portions are connected to external devices. The third and fourth connection port portions 124a and 124b are open in the assembly direction Du, for which a drawing is not shown.

[0133] The sixth connector portion constitutes a fifth connection port portion 125a of the third fluid flow path 125 and is provided at a position corresponding to one end portion of the third intermediate flow path portion 125c. The fifth connector portion is connected to an external device. The fifth connection port portion 125a is open in the assembly direction Du, for which a drawing is not shown.

[0134] The seventh connector portion 25 constitutes a sixth connection port portion 125b of the third fluid flow path 125 and is provided at a position corresponding to the other end portion of the third intermediate flow path portion 125c. The seventh connector portion 25 is connected to the second port P2 of the valve device VD. Specifically, the seventh connector portion 25 is connected to the portion where the second step portion 23 is provided. The sixth connection port portion 125b is open to the other side in the assembly direction Du with respect to the second step portion 23 constituting the "cross formation portion".

[0135] The eighth connector portion 26 constitutes a seventh connection port portion 126a of the fourth fluid flow path 126 and is provided at a position corresponding to one end portion of the fourth intermediate flow path portion 126c. The eighth connector portion 26 is connected to the third port P3 of the valve device VD.

[0136] The ninth connector portion constitutes an eighth connection port portion 126b of the fourth fluid flow path 126 and is provided at a position corresponding to the other end portion of the fourth intermediate flow path portion 126c. The ninth connector portion is connected to an external device. The seventh and eighth connection port portions 126a and 126b are open in the assembly direction Du, for which a drawing is not shown.

[0137] The tenth connector portion forms the ninth connection port 127a of the fifth fluid flow path 127, and is located at a position corresponding to one end of the fifth intermediate flow path portion 127c. The tenth connector portion is connected to the fourth port P4 of the valve device VD. The ninth connection port 127a opens to the other side of the assembly direction Du, which is not shown.

[0138] The eleventh connector portion forms the eleventh connection port 128a of the sixth fluid flow path 128, and is located at a position corresponding to one end of the sixth intermediate flow path portion 128c. The eleventh connector portion is connected to the fifth port P5 of the valve device VD. The eleventh connection port 128a opens to the other side of the assembly direction Du, which is not shown.

[0139] The twelfth connector portion forms the twelfth connection port 128b of the sixth fluid flow path 128, and is located at a position corresponding to the other end of the sixth intermediate flow path portion 128c. The twelfth connector portion connects to an external device. The twelfth connection port 128b opens in the assembly direction Du, but is not shown in the figure.

[0140] The second component 20, thus configured, is a molded product integrally formed from the base portion 21, the first step portion 22, the second step portion 23, and the second to twelfth connector portions. Since the second component 20 has no parts facing each other in the assembly direction Du, it has a shape without undercuts that allows the mold to be pulled out along the assembly direction Du. Furthermore, in this embodiment, the six flow channel grooves 211-216 formed on the base portion 21 constitute a "second recess" formed on the second component 20 and open to the other side in the assembly direction Du, and the first step portion 22 and the second step portion 23 constitute a "second cover portion." Additionally, in this embodiment, the six flow channel grooves 211-216 formed on the base portion 21 constitute a "third flow channel portion," and the first step portion 22 and the second step portion 23 constitute a "second flow channel portion."

[0141] like Figure 24 As shown, the structure 12 of the flow path forming apparatus 10 is formed by joining the first component 18 and the second component 20 in an assembled state in the assembly direction Du. The first component 18 and the second component 20 are joined by one of the joining elements, namely, bonding, fusion, or welding.

[0142] The resulting structure 12 is formed in which a portion of the first intermediate flow path 123c and the second intermediate flow path 124c formed therein intersect in the assembly direction Du. Alternatively, the structure 12 is formed in which a portion of the third intermediate flow path 125c and the fourth intermediate flow path 126c formed therein intersect in the assembly direction Du.

[0143] The first intermediate flow path portion 123c is formed by being surrounded by the first flow path groove portion 211 formed in the second member 20 and a portion of the flat portion 181 of the first member 18 that opposes the first flow path groove portion 211. In addition, a portion of the second intermediate flow path portion 124c is formed by being surrounded by the first bulging portion 182 of the first member 18 and the first step portion 22 of the second member 20 that opposes the first bulging portion 182. The remaining portion of the second intermediate flow path portion 124c is formed by being surrounded by the second flow path groove portion 212 formed in the second member 20 and a portion of the flat portion 181 of the first member 18 that opposes the second flow path groove portion 212. Also, the first intermediate flow path portion 123c and the second intermediate flow path portion 124c are separated from each other in a manner that does not communicate by the first step portion 22 that is a portion where the flow paths intersect. Thus, the first fluid flow path 123 and the second fluid flow path 124 are each formed as an independent flow path.

[0144] The third intermediate flow path portion 125c is formed by being surrounded by the third flow path groove portion 213 formed in the second member 20 and a portion of the flat portion 181 of the first member 18 that opposes the third flow path groove portion 213. In addition, a portion of the fourth intermediate flow path portion 126c is formed by being surrounded by the second bulging portion 183 of the first member 18 and the second step portion 23 of the second member 20 that opposes the second bulging portion 183. The remaining portion of the fourth intermediate flow path portion 126c is formed by being surrounded by the second flow path groove portion 212 formed in the second member 20 and a portion of the flat portion 181 of the first member 18 that opposes the second flow path groove portion 212. Also, the third intermediate flow path portion 125c and the fourth intermediate flow path portion 126c are separated from each other in a manner that does not communicate by the second step portion 23 that is a portion where the flow paths intersect. Thus, the third fluid flow path 125 and the fourth fluid flow path 126 are each formed as an independent flow path.

[0145] In the present embodiment, the first intermediate flow path portion 123c and the third intermediate flow path portion 125c correspond to the "second flow path" in the adjacent intermediate flow path portion on the other side in the assembly direction Du. In addition, the second intermediate flow path portion 124c and the fourth intermediate flow path portion 126c correspond to the "first flow path" in the adjacent intermediate flow path portion on the side in the assembly direction Du.

[0146] The other aspects are the same as in the first embodiment. The flow path forming device 10 of the present embodiment can obtain the same effects as the first embodiment from the same structure or equivalent structure as the first embodiment.

[0147] (Other Embodiments) The representative embodiments of the present disclosure have been described above, but the present disclosure is not limited to the above-described embodiments, and various modifications can be made, for example, as follows.

[0148] In the first embodiment, a portion of the first fluid flow path 121 is illustrated by being formed by the first recess 141 of the first component 14 and the second cover 162 of the second component 16, but the flow path forming apparatus 10 is not limited to this. For example, as Figure 25 , Figure 26 As shown, the flow path forming apparatus 10 may also be formed by a first recess 167 formed in the second component 16 and opening to one side in the assembly direction Du, and a second cover 143 formed in the first component 14 at a position opposite to the first recess 167. In this structure of the flow path forming apparatus 10, a portion of the bottom surface constituting the first recess 167 constitutes a cross-forming portion 167a. In this example, the first component 14 connects the first cover 142 and the second cover 143 in a stepless continuous connection, but is not limited to this. For example, the first component 14 may also be configured with an offset relationship in the assembly direction Du by forming a step between the first cover 142 and the second cover 143. In addition, in this example, the second component 16 connects the first recess 167 and the second recess 161 in a stepless connection, but is not limited to this. For example, the second component 16 may also be configured with an offset relationship in the assembly direction Du by forming a step between the first recess 167 and the second recess 161. Furthermore, in this example, the first recess 167 constitutes the "second flow path portion", and the first cover portion 142 constitutes the "first flow path portion".

[0149] Furthermore, the flow path forming apparatus 10 of the above embodiment forms a flow path by a recess and a cover that closes the opening of the recess, but it is not limited to this. For example, the flow path forming apparatus 10 may also form a flow path by combining L-shaped portions with each other, or by forming a flow path by combining V-shaped portions with a cover that closes the opening of the portion. Additionally, the flow path forming apparatus 10 may also form a flow path by closing a recess formed on one of the first component 14 and the second component 16 with a cover formed on the other.

[0150] The flow path forming apparatus 10 described in the above embodiment illustrates a structure in which the connection ports of each of the three-dimensionally intersecting flow paths are open in the assembly direction Du, but it is not limited to this. The flow path forming apparatus 10 may also open the connection ports of each of the three-dimensionally intersecting flow paths in a direction other than the assembly direction Du.

[0151] The flow path forming apparatus 10 described in the above embodiment illustrates a structure in which three-dimensionally intersecting flow paths are connected to an external device via a pair of connection ports, but it is not limited to this. In the flow path forming apparatus 10, for example, one of the three-dimensionally intersecting flow paths may be a flow path that is connected to an external device at only one end while the other end is closed or open. In such a structure, the connection ports are not necessary and may be omitted.

[0152] The flow path forming device 10 of the above-described embodiment illustrates a structure in which the components that constitute the structure body 12 are joined to each other by an adhesive, fusion, or welding. However, the flow path forming device 10 is not limited to this. For example, at least some of the components that constitute the structure body 12 can be joined by mechanical coupling using a bolt, a screw, or the like.

[0153] The flow path forming device 10 of the above-described embodiment causes cooling water to flow in the flow path formed in the structure body 12. However, the flow path forming device 10 is not limited to this. For example, the flow path forming device 10 can also be used to cause a fluid other than cooling water, such as a gas or oil, to flow.

[0154] In the flow path forming device 10 of the above-described embodiment, the components that constitute the structure body 12 are injection-molded products formed using a mold. However, the flow path forming device 10 is not limited to this. For example, the components that constitute the structure body 12 can also be press-molded products.

[0155] The flow path forming device 10 of the above-described embodiment illustrates a structure in which a single structure body 12 is used. However, the flow path forming device 10 is not limited to this. For example, the flow path forming device 10 can also be configured by joining a plurality of structure bodies 12. In this case, a structure in which three or more flow paths are three-dimensionally crossed can be realized. In addition, the plurality of structure bodies 12 can be the same flow path structure or different flow path structures. In addition, the flow path forming device 10 can also be configured by joining the structure body 12 to an object other than the structure body 12.

[0156] In the above-described embodiment, an example in which the flow path forming device 10 of the present disclosure is applied to the fluid control system 1 mounted on an electric vehicle is described. However, the application target of the flow path forming device 10 is not limited to the above-described application target. For example, the flow path forming device 10 can also be applied to a system mounted on a vehicle having an internal combustion engine as a power source, a system for a factory, a house, or the like.

[0157] In the above-described embodiment, as to the elements that constitute the embodiment, it is of course not necessarily essential except for cases where it is particularly indicated as essential and cases where it is obviously recognized as essential in principle, and the like.

[0158] In the above-described embodiment, in cases where a numerical value such as the number of elements, a numerical value, an amount, a range, and the like of the elements of the embodiment is mentioned, it is not limited to a specific number except for cases where it is particularly indicated as essential and cases where it is obviously limited to a specific number in principle, and the like.

[0159] In the above-described embodiment, in cases where a shape, a positional relationship, and the like of the elements and the like are mentioned, it is not limited to a specific shape, a specific positional relationship, and the like except for cases where it is particularly indicated and cases where it is limited to a specific shape, a specific positional relationship, and the like in principle, and the like.

[0160] [Viewpoint of the Present Disclosure] [First Viewpoint] A flow path forming device in which The flow path forming device has a structure body (12) including a plurality of fluid flow paths (121 to 128) independent of each other, A part of adjacent fluid flow paths among the plurality of fluid flow paths is disposed in a manner of being stereoscopically crossed in a prescribed assembly direction (Du), The structure body is configured by integrally joining two divided bodies of a first member (14, 18) and a second member (16, 20) in a state of being assembled in the assembly direction.

[0161] [Second Viewpoint] The flow path forming device according to the first viewpoint, wherein When a flow path located on one side of the assembly direction among the fluid flow paths stereoscopically crossed is set as a first flow path, and a flow path located on the other side of the assembly direction among the fluid flow paths stereoscopically crossed is set as a second flow path, At least a part of the first flow path is formed by a first flow path site (141, 182, 183, 143) formed in the first member and a second flow path site (162, 22, 23, 167) formed in the second member at a position opposite to the first flow path site in the assembly direction, The second flow path is formed by a third flow path site (161, 211 to 216) formed in the second member, a fourth flow path site (142, 181) formed in the first member at a position opposite to the third flow path site in the assembly direction, and a cross formation site (162a, 22, 23, 167a) provided in the second flow path site at a position where the first flow path and the second flow path are stereoscopically crossed, The first flow path and the second flow path are separated by the cross formation site, The first member is a molded product in which the first flow path site and the fourth flow path site are integrally molded, The second member is a molded product in which the second flow path site and the third flow path site are integrally molded.

[0162] [Third Viewpoint] The flow path forming device according to the second viewpoint, wherein The first flow path site is a first recess (141, 182, 183) formed in the first member and open to the other side of the assembly direction, The second flow path site is a second cover portion (162, 22, 23) formed in the second member at a position opposite the first recess in the assembly direction, The third flow path site is a second recess (161, 211 to 216) formed in the second member and having a side open to the assembly direction, The fourth flow path site is a first cover portion (142, 181) formed in the first member at a position opposite the second recess in the assembly direction.

[0163] [Fourth Aspect] The flow path forming device according to the second aspect, wherein The second flow path site is a first recess (167) formed in the second member and open to a side of the assembly direction, The first flow path site is a first cover portion (143) formed in the first member at a position opposite the first recess in the assembly direction, The third flow path site is a second recess (161) formed in the second member and having a side open to the assembly direction, The fourth flow path site is a second cover portion (142) formed in the first member at a position opposite the second recess in the assembly direction.

[0164] [Fifth Aspect] The flow path forming device according to any one of the second to fourth aspects, wherein The fluid flow paths of the three-dimensional intersection each have a pair of connection port portions (121a to 128a, 121b to 128b) for introduction or discharge of fluid with an external device (VD, PD, SD) and an intermediate flow path portion (121c to 128c) connecting the pair of connection port portions to each other, and a part of the intermediate flow path portions adjacent to each other are disposed in a three-dimensional intersection in the assembly direction.

[0165] [Sixth Aspect] The flow path forming device according to the fifth aspect, wherein In the second member, one of the pair of connection port portions of the second flow path opposite the intersection formation site is open to the other side of the assembly direction with respect to the intersection formation site.

[0166] [Seventh Aspect] The flow path forming device according to the sixth aspect, wherein The other of the pair of connection port portions of the second flow path is open to the one side or the other side of the assembly direction.

[0167] [The eighth aspect] The flow path forming apparatus according to any one of the fifth to seventh aspects, wherein one of the pair of connection port portions of the first flow path is open to one side or the other of the assembly direction, the other of the pair of connection port portions of the first flow path is open to one side or the other of the assembly direction.

[0168] [The ninth aspect] The flow path forming apparatus according to any one of the first to eighth aspects, wherein In the configuration body, the first member and the second member are joined by a joining element that is one of adhesion, fusion, and welding.

[0169] [The tenth aspect] The flow path forming apparatus according to any one of the first to ninth aspects, wherein The fluid flowing in the plurality of fluid flow paths is cooling water.

Claims

1. A flow path forming apparatus characterized by comprising: the flow path forming apparatus has a structure body (12) including a plurality of fluid flow paths (121-128) independent of each other, a portion of adjacent fluid flow paths among the plurality of fluid flow paths is disposed in a manner of being three-dimensionally crossed in a prescribed assembly direction (Du), the structure body is configured by integrally joining two divided bodies of a first member (14, 18) and a second member (16, 20) in a state of being assembled in the assembly direction.

2. The flow path forming apparatus according to claim 1, characterized in that: when a flow path on one side of the assembly direction among the fluid flow paths that are three-dimensionally crossed is set as a first flow path, and a flow path on the other side of the assembly direction among the fluid flow paths that are three-dimensionally crossed is set as a second flow path, at least a portion of the first flow path is formed by a first flow path site (141, 182, 183, 143) formed in the first member and a second flow path site (162, 22, 23) formed in the second member at a position opposite to the first flow path site in the assembly direction, the second flow path is formed by a third flow path site (161, 211-216) formed in the second member, a fourth flow path site (142, 181) formed in the first member at a position opposite to the third flow path site in the assembly direction, and a cross formation site (162a, 22, 23, 167a) provided in the second flow path site at a position where the first flow path and the second flow path are three-dimensionally crossed, the first flow path and the second flow path are separated by the cross formation site, the first member is a molded product in which the first flow path site and the fourth flow path site are integrally molded, the second member is a molded product in which the second flow path site and the third flow path site are integrally molded.

3. The flow path forming apparatus according to claim 2, characterized in that: the first flow path site is a first recess (141, 182, 183) formed in the first member and open to the other side of the assembly direction, the second flow path site is a second cover portion (162, 22, 23) formed in the second member at a position opposite to the first recess in the assembly direction, the third flow path site is a second recess (161, 211-216) formed in the second member and having a portion open to one side of the assembly direction, the fourth flow path site is a first cover portion (142, 181) formed in the first member at a position opposite to the second recess in the assembly direction.

4. The flow path forming apparatus according to claim 2, characterized in that: the second flow path site is a first recess (167) formed in the second member and open to one side of the assembly direction, the first flow path site is a first cover portion (143) formed in the first member at a position opposite to the first recess in the assembly direction, The third flow path site is a second recess (161) formed in the second member and having an opening to one side in the assembly direction, The fourth flow path site is a second cover portion (142) formed in the first member at a position opposite the second recess in the assembly direction.

5. The flow path forming device according to any one of claims 2 to 4, wherein The fluid flow paths of the three-dimensional intersection each have a pair of connection port portions (121a to 128a, 121b to 128b) for introducing or discharging fluid to or from an external device (VD, PD, SD) and an intermediate flow path portion (121c to 128c) connecting the pair of connection port portions to each other, and are arranged so that a portion of the intermediate flow path portions of adjacent ones of the fluid flow paths intersect in the assembly direction.

6. The flow path forming device according to claim 5, wherein In the second member, one of the pair of connection port portions of the second flow path opposite the intersection formation site is open to the other side of the intersection formation site in the assembly direction.

7. The flow path forming device according to claim 6, wherein The other of the pair of connection port portions of the second flow path is open to one side or the other side of the assembly direction.

8. The flow path forming device according to claim 5, wherein One of the pair of connection port portions of the first flow path is open to one side or the other side of the assembly direction, The other of the pair of connection port portions of the first flow path is open to one side or the other side of the assembly direction.

9. The flow path forming device according to claim 1 or 2, wherein In the configuration body, the first member and the second member are joined by a joining element selected from the group consisting of adhesion, fusion, and welding.

10. The flow path forming device according to claim 1 or 2, wherein The fluid flowing in the plurality of fluid flow paths is cooling water.

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