Flow path switching device

Abstract

A flow path switching device is provided with, as communication paths: an adjacent port communication path for communicating a port of a first fixed member and a port of a second fixed member, which are provided at positions adjacent to each other in the circumferential direction of a rotating member when viewed from the axial direction of the rotating member; and a facing port communication path for communicating a port of the first fixing member and a port of the second fixing member, which are provided at positions facing each other in the radial direction of the rotating member when viewed from the axial direction of the rotating member.

Description

Technical Field

[0001] The present disclosure relates to a flow path switching device for switching a flow path pattern of a fluid flow. Background Art

[0002] Patent Document 1 discloses a valve that switches a communicating port by rotating a main valve element.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2019-49364 Summary of the invention

[0006] Problem that the invention aims to solve

[0007] Patent Document 1 discloses only a flow path pattern for communicating ports arranged in the circumferential direction of the main valve body when the main valve body is arranged at the second rotation position. In the valve disclosed in Patent Document 1, there are few flow path patterns that can be switched.

[0008] Therefore, the present disclosure has been made to solve the above-mentioned problems, and an object of the present disclosure is to provide a flow path switching device capable of switching to a large number of flow path modes.

[0009] Solutions for solving problems

[0010] A technical solution of the present disclosure completed in order to solve the above-mentioned problem is a flow path switching device, which comprises: a first fixed member; a second fixed member; and a disc-shaped rotating member, which is arranged between the first fixed member and the second fixed member, the first fixed member has a plurality of ports and the second fixed member has a plurality of ports, the rotating member has a communication path for connecting the port of the first fixed member with the port of the second fixed member, and in the flow path switching device, the rotating member is rotated around the central axis of the disc-shaped member to switch the first fixed member connected by the communication path. The combination of the port and the port of the second fixed member switches the flow path mode of the fluid flow. The flow path switching device is characterized in that an adjacent port communication path and a relative port communication path are provided as the communication path. The adjacent port communication path is used to communicate the port of the first fixed member arranged at a position adjacent to the circumferential direction of the rotating member when viewed from the axial direction of the rotating member with the port of the second fixed member, and the relative port communication path is used to communicate the port of the first fixed member arranged at a position opposite to the circumferential direction of the rotating member when viewed from the axial direction of the rotating member with the port of the second fixed member.

[0011] According to this technical solution, in addition to the flow path pattern formed by the adjacent port communication paths, the flow path pattern formed by the opposite port communication paths can also be switched, so the switchable flow path patterns can be increased. Therefore, more flow path patterns can be switched.

[0012] In the above technical solution, preferably, the plurality of opposing port communication passages intersect in the radial direction of the rotating member and are provided at different positions in the axial direction of the rotating member.

[0013] According to this technical solution, the plurality of opposing port communication passages can be provided so as not to interfere with each other in the axial direction of the rotating member. Therefore, a flow passage pattern using the plurality of opposing port communication passages can be formed.

[0014] In the above aspect, preferably, the plurality of opposing port communication passages intersect in the radial direction of the rotating member and are inclined so as not to interfere with each other in the axial direction of the rotating member.

[0015] According to this aspect, a flow path pattern can be formed using a plurality of opposing port communication paths, and the fluid flowing in the opposing port communication paths can be made to flow smoothly along the inclination, thereby reducing the pressure loss of the fluid.

[0016] In the above aspect, preferably, the opposing port communication passage is formed in a flat shape so as to expand in a radial direction of the rotating member.

[0017] According to this technical solution, the axial width of the rotating member of the relative port communication passage can be reduced while ensuring the flow cross-sectional area of ​​the relative port communication passage. Therefore, the flow switching device can be miniaturized while ensuring the flow rate of the fluid flowing in the relative port communication passage.

[0018] In the above aspect, it is preferable that the rotating member is formed by stacking a plurality of disk members, and each of the plurality of disk members is a resin molded body in which a part of the communication path is formed.

[0019] According to this aspect, a communication passage having a complicated shape can be easily formed in the rotating member. Therefore, communication passages having various shapes can be formed.

[0020] In the above technical solution, it is preferred that the number of ports of the first fixed member and the number of ports of the second fixed member are respectively more than three, and they are arranged at positions offset from each other in the circumferential direction of the rotating member, and the more than three relative port connecting passages are arranged to intersect in the radial direction of the rotating member and do not interfere with each other in the axial direction of the rotating member.

[0021] According to this aspect, in a six-way valve or a valve having more than six-way valves (for example, an eight-way valve), a flow path pattern using three or more opposing port communication paths can be formed.

[0022] Effects of the Invention

[0023] According to the flow path switching device of the present disclosure, it is possible to switch to a large number of flow path modes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an external perspective view of the flow path switching device (in the case of a six-port valve) according to the present embodiment.

[0025] Figure 2 It is an exploded perspective view of the flow path switching device according to the present embodiment (illustration of the driving unit is omitted).

[0026] Figure 3 It is a cross-sectional view of the flow path switching device according to the present embodiment (illustration of the driving portion is omitted).

[0027] Figure 4 is a top view of the rotating disk.

[0028] Figure 5 It is a top view of the fixed plate.

[0029] Figure 6 It is a schematic diagram viewed from the axial direction of the rotating disk in the first embodiment, and is a diagram showing the arrangement of the rotating disk communication passages in the first flow path mode.

[0030] Figure 7 is Figure 6 The position of the dot-dash line α in FIG. 1 is a cross-sectional view when viewing the inner side from the outer side in the radial direction of the rotating disk.

[0031] Figure 8 This is a top view of the circular plate component of the first layer.

[0032] Fig. 9 This is a top view of the circular plate component of the second layer.

[0033] Fig.10 This is a top view of the circular plate component on the third layer.

[0034] Fig.11 This is a top view of the circular plate component on the 4th layer.

[0035] Fig.12 This is a top view of the circular plate component on the 5th layer.

[0036] Fig.13 It is a schematic diagram viewed from the axial direction of the rotating disk in the first embodiment, and is a diagram showing the arrangement of the rotating disk communication passages in the second flow path mode.

[0037] Fig.14 is Fig.13 The position of the dot-dash line α in FIG. 1 is a cross-sectional view when viewing the inner side from the outer side in the radial direction of the rotating disk.

[0038] Fig.15 It is a schematic diagram viewed from the axial direction of the rotating disk in the first embodiment, and is a diagram showing the arrangement of the rotating disk communication passages in the third flow path mode.

[0039] Fig.16 is Fig.15 The position of the dot-dash line α in FIG. 1 is a cross-sectional view when viewing the inner side from the outer side in the radial direction of the rotating disk.

[0040] Fig.17 This is a diagram when the flow path switching device is set to the first flow path mode in the temperature control system.

[0041] Fig.18 This is a diagram when the flow path switching device is set to the second flow path mode in the temperature control system.

[0042] Fig.19 This is a diagram when the flow path switching device is set to the third flow path mode in the temperature control system.

[0043] Fig. 20 It is a schematic diagram viewed from the axial direction of the rotating disk in the second embodiment, and is a diagram showing the arrangement of the rotating disk communication passages in the second flow path mode.

[0044] Fig.21 is Fig. 20 The position of the dot-dash line α in FIG. 1 is a cross-sectional view when viewing the inner side from the outer side in the radial direction of the rotating disk.

[0045] Fig. 22 yes Fig. 20 AA section view.

[0046] Fig.23 yes Fig. 20 BB cross-sectional view.

[0047] Fig.24 yes Fig. 20 CC cross-sectional view.

[0048] Fig.25 This is a diagram showing the relative port communication path in the second embodiment.

[0049] Fig.26 It is a schematic diagram viewed from the axial direction of the rotating disk in the third embodiment, and is a diagram showing the arrangement of the rotating disk communication passages in the second flow path mode.

[0050] Fig. 27 is Fig.26The position of the dot-dash line α in FIG. 1 is a cross-sectional view when viewing the inner side from the outer side in the radial direction of the rotating disk. DETAILED DESCRIPTION

[0051] A flow path switching device 1 as an example of an embodiment of the present disclosure will be described.

[0052] <Overall Summary of Flow Path Switching Device>

[0053] First, the overall outline of the flow path switching device 1 according to the present embodiment will be described.

[0054] like Figure 1 to Figure 3 As shown, the flow path switching device 1 includes a housing 11 , a valve body portion 12 , and a driving portion 13 .

[0055] The housing 11 includes an inflow port 20 as a flow path for fluid inflow and an outflow port 30 as a flow path for fluid outflow. Here, as an example, the flow path switching device 1 is a six-way valve, and the housing 11 includes three inflow ports 20 and three outflow ports 30. In addition, a first inflow port 21, a second inflow port 22, and a third inflow port 23 are provided as the three inflow ports 20. In addition, a first outflow port 31, a second outflow port 32, and a third outflow port 33 are provided as the three outflow ports 30.

[0056] The housing 11 is an example of a "second fixing member" of the present disclosure, and the outflow port 30 (i.e., the first outflow port 31, the second outflow port 32, and the third outflow port 33) is an example of a "port of the second fixing member" of the present disclosure.

[0057] The valve core 12 is disposed inside the housing 11. Figure 2 and Figure 3 As shown, the valve core portion 12 includes a rotating disk 40 and a fixed disk 50. The rotating disk 40 and the fixed disk 50 are stacked in a central axis L direction (hereinafter referred to as "axial direction") of a disk portion 41 of the rotating disk 40 and a disk portion 51 of the fixed disk 50 described later.

[0058] The rotating disk 40 and the fixed disk 50 are formed of resin, for example. The rotating disk 40 is an example of a "rotating member" in the present disclosure, and the fixed disk 50 is an example of a "first fixed member" in the present disclosure.

[0059] like Figure 2 to Figure 4 As shown, the rotating disk 40 includes a circular plate portion 41 and a rotating shaft portion 42 .

[0060] The disk portion 41 is formed in a disk shape and is provided between the fixed disk 50 and the housing 11. The disk portion 41 includes a rotating disk communication passage 60 for communicating between a fixed disk port 70 described later and the outflow port 30. The disk portion 41 and the rotating disk communication passage 60 will be described in detail later.

[0061] The rotating shaft portion 42 is connected to the disc portion 41 at one end in the direction of the central axis thereof, and is connected to the driving portion 13 at the other end. The rotating shaft portion 42 is arranged at the center of the disc portion 41 in such a manner that the central axis thereof is consistent with the central axis L of the disc portion 41. Furthermore, the rotating shaft portion 42 obtains the power of rotation from the driving portion 13 and rotates with its central axis as the center, so that the disc portion 41 connected to the rotating shaft portion 42 rotates with its disc-shaped central axis L as the center. In this way, the rotating disk 40 obtains the power of rotation from the driving portion 13, and rotates with the central axis L as the center.

[0062] like Figure 2 , Figure 3 as well as Figure 5 As shown, the fixed plate 50 includes a circular plate portion 51 and a cylindrical portion 52 .

[0063] The disk portion 51 is formed in a disk shape and has a fixed disk port 70 as a flow path penetrating in the axial direction. Here, the disk portion 51 has three fixed disk ports 70. Figure 2 , Figure 5 As shown, the three fixed disk ports 70 include a first fixed disk port 71, a second fixed disk port 72, and a third fixed disk port 73. The fixed disk ports 70 (i.e., the first fixed disk port 71, the second fixed disk port 72, and the third fixed disk port 73) are examples of "ports of the first fixing member" in the present disclosure.

[0064] The cylindrical portion 52 is connected to the disc portion 51 and is formed to extend from the disc portion 51 in the axial direction so as to surround the fixed disk port 70. Here, three cylindrical portions 52 are formed so as to correspond to the three fixed disk ports 70, respectively.

[0065] The driving unit 13 includes a motor (not shown) for providing rotational power to the rotating shaft 42 of the rotating disk 40 .

[0066] The flow path switching device 1 of the above structure forms a flow path for fluid flow by connecting the fixed disk port 70 connected to the inlet port 20, the rotating disk communication path 60, and the outflow port 30. In addition, the flow path switching device 1 uses the driving unit 13 to rotate the rotating disk 40 around the central axis L, and switches the combination of the fixed disk port 70 and the outflow port 30 connected by the rotating disk communication path 60, thereby switching the flow path mode (hereinafter referred to as "flow path mode") of the fluid flow. In addition, an example of switching the flow path mode will be described later.

[0067] In addition, the flow path switching device 1 is not limited to a six-way valve, and may be another multi-way valve such as a three-way valve or a four-way valve.

[0068] In addition, if Figure 3 As shown, sealing members 81 are provided between the housing 11 and the rotating disk 40 and between the rotating disk 40 and the fixed disk 50. The sealing members 81 close (seal) the flow path formed between the fixed disk port 70 and the rotating disk communication path 60 communicating with the fixed disk port 70 and the flow path formed between the outflow port 30 and the rotating disk communication path 60 communicating with the outflow port 30 relative to the outside.

[0069] In addition, a disk holding spring 82 is provided between the disk portion 51 of the fixed disk 50 and the housing 11. And the stress generated by the pressing force of the disk holding spring 82 acts on the disk portion 51 of the fixed disk 50. A total of three such disk holding springs 82 are provided in a manner that they are respectively arranged on the three cylindrical portions 52 of the fixed disk 50.

[0070] Furthermore, a lip seal 83 is provided between the cylindrical portion 52 of the fixed disk 50 and the housing 11 to ensure sealing performance of the fixed disk port 70 .

[0071] <About switching flow path mode>

[0072] (First embodiment)

[0073] First, the first embodiment will be described.

[0074] like Figure 6 As shown, when viewed from the axial direction of the disc portion 41 of the rotating disc 40, the fixed disc port 70 and the outflow port 30 are respectively provided with a plurality of (at a position offset from each other) equal intervals from each other in the circumferential direction of the disc portion 41. Figure 6 Three in the example shown).

[0075] In this embodiment, the disc portion 41 of the rotating disk 40 is formed by stacking a plurality of disc members. Figure 7 As shown, the disk portion 41 is formed by stacking the disk member 41a of the first layer, the disk member 41b of the second layer, the disk member 41c of the third layer, the disk member 41d of the fourth layer, and the disk member 41e of the fifth layer in the axial direction of each disk member. Furthermore, the five disk members 41a to 41e are respectively formed bodies of resin, forming a part of the rotating disk communication passage 60.

[0076] like Figure 8As shown, as a part of the rotating disk communication passage 60, the first layer of the disc member 41a is provided with three adjacent port communication passages 90 and three communication holes 100 formed in a manner that penetrates the first layer of the disc member 41a in its axial direction. Here, the details are described later, and the adjacent port communication passage 90 is a communication passage for connecting the fixed disk port 70 and the outflow port 30 provided at the circumferential position of the rotating disk 40 when viewed from the axial direction of the rotating disk 40. And, the first layer of the disc member 41a is provided with the first adjacent port communication passage 91, the second adjacent port communication passage 92 and the third adjacent port communication passage 93 as three adjacent port communication passages 90. In addition, a sealing member 81 is provided on the lower surface (not shown) of the first layer of the disc member 41a.

[0077] The communication hole 100 is used to communicate between the fixed disk port 70 and the adjacent port communication passage 170 described later together with the first relative port communication passage 110 or communication hole 120 , the second relative port communication passage 130 or communication hole 140 , and the third relative port communication passage 150 or communication hole 160 described later.

[0078] like Fig. 9 As shown, as a part of the rotating disk communication passage 60, the second layer of the disc member 41b is provided with a first relative port communication passage 110 and five communication holes 120 formed in a manner that penetrates the second layer of the disc member 41b in its axial direction. Here, the details are described later, and the first relative port communication passage 110 is a communication passage for connecting the fixed disk port 70 and the outflow port 30, which are arranged at a position opposite to the radial direction of the rotating disk 40 when viewed from the axial direction of the rotating disk 40.

[0079] Furthermore, three of the five communication holes 120 are communication paths for communicating the adjacent port communication path 90 with the adjacent port communication path 170 described later together with the communication hole 140 and the communication hole 160 described later. Furthermore, the remaining two communication holes 120 are communicated with the second opposite port communication path 130 and the third opposite port communication path 150 described later, and are communication paths for communicating the fixed disk port 70 with the adjacent port communication path 170 together with the communication hole 100, the second opposite port communication path 130 or the communication hole 140, the third opposite port communication path 150 or the communication hole 160.

[0080] like Fig.10As shown, as a part of the rotating disk communication passage 60, the third-layer disc member 41c is provided with a second relative port communication passage 130 and five communication holes 140 formed in a manner that penetrates the third-layer disc member 41c in its axial direction. Here, the details are described later, and the second relative port communication passage 130 is a communication passage for connecting the fixed disk port 70 and the outflow port 30, which are arranged at a position opposite to the radial direction of the rotating disk 40 when viewed from the axial direction of the rotating disk 40.

[0081] Furthermore, three of the five communication holes 140 are communication paths for communicating the adjacent port communication path 90 with the adjacent port communication path 170 together with the communication hole 120 and the communication hole 160. Furthermore, the remaining two communication holes 140 are in communication with the first opposing port communication path 110 and the third opposing port communication path 150, and are communication paths for communicating the fixed disk port 70 with the adjacent port communication path 170 together with the communication hole 100, the first opposing port communication path 110 or the communication hole 120, the third opposing port communication path 150 or the communication hole 160.

[0082] like Fig.11 As shown, as a part of the rotating disk communication passage 60, the 4th layer of the disc member 41d is provided with a 3rd relative port communication passage 150 and five communication holes 160 formed in a manner that penetrates the 4th layer of the disc member 41d in its axial direction. Here, the details are described later, and the 3rd relative port communication passage 150 is a communication passage for connecting the fixed disk port 70 and the outflow port 30, which are arranged at positions opposite to each other in the radial direction of the rotating disk 40 when viewed from the axial direction of the rotating disk 40.

[0083] Furthermore, three of the five communication holes 160 are communication paths for communicating the adjacent port communication path 90 with the adjacent port communication path 170 together with the communication hole 120 and the communication hole 140. Furthermore, the remaining two communication holes 160 are in communication with the first opposing port communication path 110 and the second opposing port communication path 130, and are communication paths for communicating the fixed disk port 70 with the adjacent port communication path 170 together with the communication hole 100, the first opposing port communication path 110 or the communication hole 120, the second opposing port communication path 130 or the communication hole 140.

[0084] like Fig.12As shown, as a part of the rotating disk communication passage 60, the 5th layer of the disc member 41e is provided with three adjacent port communication passages 170 formed in a manner that penetrates the 5th layer of the disc member 41e in its axial direction. Here, the details are described later, and the adjacent port communication passage 170 is a communication passage for connecting the fixed disk port 70 and the outflow port 30 provided at the circumferential position of the rotating disk 40 when viewed from the axial direction of the rotating disk 40. And, the 5th layer of the disc member 41e is provided with the 1st adjacent port communication passage 171, the 2nd adjacent port communication passage 172 and the 3rd adjacent port communication passage 173 as the three adjacent port communication passages 170. In addition, the upper surface of the disc member 41e of the 5th layer is connected with the rotating shaft portion 42, and a sealing member 81 is provided.

[0085] As described above, in the present embodiment, the rotating disk 40 includes three adjacent port communication passages 90 and three adjacent port communication passages 170 as a part of the rotating disk communication passage 60 .

[0086] In addition, as a part of the rotating disk connecting passage 60, the rotating disk 40, in addition to the adjacent port connecting passage 90 and the adjacent port connecting passage 170, also has a first relative port connecting passage 110, a second relative port connecting passage 130 and a third relative port connecting passage 150 (hereinafter also referred to as "three relative port connecting passages 110, 130, 150").

[0087] Furthermore, the three opposing port communication passages 110 , 130 , and 150 are provided to intersect each other in the radial direction of the disc portion 41 of the rotating disk 40 and do not interfere with each other in the axial direction of the disc portion 41 of the rotating disk 40 .

[0088] Specifically, the three relative port communication passages 110, 130, and 150 intersect in the radial direction of the rotating disk 40, and are separately formed in the second layer of the circular plate member 41b, the third layer of the circular plate member 41c, and the fourth layer of the circular plate member 41d, and are respectively arranged at different positions in the axial direction of the rotating disk 40 (refer to the following description). Fig.14 ).

[0089] Based on the structure of the rotating disk 40 as described above, in this embodiment, the flow path mode can be switched as follows. Figure 6 In FIG. 1 , in order to facilitate understanding of the shapes of the three opposing port communication passages 110 , 130 , and 150 , the first opposing port communication passage 110 is shaded with dots.

[0090] First, in the first flow mode, if Figure 6 and Figure 7As shown, the first fixed disk port 71 and the first outflow port 31 are communicated with each other by the first adjacent port communication passage 91. Specifically, the first fixed disk port 71 communicated with the first inflow port 21 and the first outflow port 31 are communicated with each other via the first adjacent port communication passage 91, the communication hole 120, the communication hole 140, the communication hole 160, and the first adjacent port communication passage 171.

[0091] Furthermore, the second fixed disk port 72 is communicated with the second outflow port 32 by the second adjacent port communication passage 92. Specifically, the second fixed disk port 72 communicated with the second inflow port 22 is communicated with the second outflow port 32 via the second adjacent port communication passage 92, the communication hole 120, the communication hole 140, the communication hole 160, and the second adjacent port communication passage 172.

[0092] Furthermore, the third fixed disk port 73 is communicated with the third outflow port 33 by the third adjacent port communication passage 93. Specifically, the third fixed disk port 73 communicated with the third inflow port 23 is communicated with the third outflow port 33 via the third adjacent port communication passage 93, the communication hole 120, the communication hole 140, the communication hole 160, and the third adjacent port communication passage 173.

[0093] Next, in the second flow path mode obtained by rotating the disk portion 41 of the rotating disk 40 counterclockwise by 30 degrees from the first flow path mode, as shown in FIG. Fig.13 and Fig.14 As shown, the first fixed disk port 71 and the third outflow port 33 are communicated with each other by the first relative port communication passage 110. Specifically, the first fixed disk port 71 communicated with the first inflow port 21 and the third outflow port 33 are communicated with each other via the communication hole 100, the first relative port communication passage 110, the communication hole 140, the communication hole 160, and the third adjacent port communication passage 173.

[0094] Furthermore, the second fixed disk port 72 is communicated with the first outflow port 31 by the second opposing port communication passage 130. Specifically, the second fixed disk port 72 communicated with the second inflow port 22 is communicated with the first outflow port 31 via the communication hole 100, the communication hole 120, the second opposing port communication passage 130, the communication hole 160, and the first adjacent port communication passage 171.

[0095] Furthermore, the third fixed disk port 73 is communicated with the second outflow port 32 by the third opposing port communication passage 150. Specifically, the third fixed disk port 73 communicated with the third inflow port 23 is communicated with the second outflow port 32 via the communication hole 100, the communication hole 120, the communication hole 140, the third opposing port communication passage 150, and the second adjacent port communication passage 172.

[0096] Next, in the third flow path mode obtained by rotating the disc portion 41 of the rotating disk 40 counterclockwise by 30 degrees from the second flow path mode, as shown in FIG. Fig.15 and Fig.16 As shown, the first fixed disk port 71 and the second outflow port 32 are communicated with each other by the second adjacent port communication passage 172. Specifically, the first fixed disk port 71 communicated with the first inflow port 21 and the second outflow port 32 are communicated with each other via the second adjacent port communication passage 92, the communication hole 120, the communication hole 140, the communication hole 160, and the second adjacent port communication passage 172.

[0097] Furthermore, the second fixed disk port 72 is communicated with the third outflow port 33 by the third adjacent port communication passage 173. Specifically, the second fixed disk port 72 communicated with the second inflow port 22 is communicated with the third outflow port 33 via the third adjacent port communication passage 93, the communication hole 120, the communication hole 140, the communication hole 160, and the third adjacent port communication passage 173.

[0098] Furthermore, the third fixed disk port 73 is communicated with the first outflow port 31 by the first adjacent port communication passage 171. Specifically, the third fixed disk port 73 communicated with the third inflow port 23 is communicated with the first outflow port 31 via the first adjacent port communication passage 91, the communication hole 120, the communication hole 140, the communication hole 160, and the first adjacent port communication passage 171.

[0099] By using the flow path switching device 1 capable of switching the flow path pattern in this way, the battery 211 and the PCU 212 can be warmed up and cooled in the temperature adjustment system 201 mounted on the vehicle as follows.

[0100] like Fig.17 As shown, the temperature control system 201 has a first flow path 221, a second flow path 222, and a third flow path 223 as flow paths for a fluid (e.g., cooling water) to flow. A battery 211, a cooler 231, and a check valve 233 are provided in the first flow path 221. In addition, a radiator 232 is provided in the second flow path 222. Moreover, a PCU 212 and a check valve 234 are provided in the third flow path 223. Furthermore, the flow path switching device 1 is connected to the first flow path 221, the second flow path 222, and the third flow path 223.

[0101] In the temperature control system 201 of such a structure, at the start of driving at an extremely low temperature (during warm-up), Fig.17 As shown, the flow switching device 1 is set to the first flow mode. Thus, the PCU 212 is heated by heat storage, the battery 211 is warmed up by heat storage of the PCU 212, and the vehicle interior is heated by heat storage of the PCU 212, heat generation of the battery 211, and a heater (not shown).

[0102] In addition, during fast charging (when driving is stopped), if Fig.18 As shown, the flow path switching device 1 is set to the second flow path mode. As a result, the battery 211 can be cooled by the cooler 231 and the radiator 232.

[0103] Moreover, during normal driving (after warming up), if Fig.19 As shown, the flow path switching device 1 is set to the third flow path mode. As a result, the battery 211 can be cooled by the cooler 231 , and the PCU 212 can be cooled by the radiator 232 .

[0104] In the present embodiment, as the rotating disk communication passage 60 , adjacent port communication passages 90 , 170 and opposing port communication passages 110 , 130 , 150 are provided.

[0105] Thus, in addition to the flow path pattern formed by the adjacent port communication passages 90 and 170, the flow path pattern formed by the opposing port communication passages 110, 130, and 150 can be switched, so that the switchable flow path patterns can be increased. Therefore, more flow path patterns can be switched.

[0106] Furthermore, the three relative port communication passages 110 , 130 , 150 intersect in the radial direction of the rotating disk 40 and are formed separately in the second, third, and fourth disk members 41 b , 41 c , 41 d and are arranged at different positions in the axial direction of the rotating disk 40 .

[0107] Thus, the three opposing port communication passages 110, 130, 150 can be provided so as not to interfere with each other in the axial direction of the rotating disk 40. Therefore, a flow passage pattern using the three opposing port communication passages 110, 130, 150 can be formed.

[0108] The rotating disk 40 is formed by stacking five disk members 41 a to 41 e . Each of the five disk members 41 a to 41 e is a resin molded body and forms a part of the rotating disk communication path 60 .

[0109] Thereby, the rotating disk communication passage 60 having a complicated shape can be easily formed in the rotating disk 40. Therefore, the rotating disk communication passage 60 having various shapes can be formed.

[0110] (Second embodiment)

[0111] Next, the second embodiment will be described, but the points different from the first embodiment will be described, and the description of the points common to the first embodiment will be omitted.

[0112] In this embodiment, if Fig. 20 and Fig.21As shown in FIG. 1 , the three relative port communication paths 110, 130, and 150 are formed into a spiral shape. Figure 22 to Figure 24 As shown, the relative port communication passages are provided with a height difference between the relative port communication passages at the intersections, so that the relative port communication passages do not interfere with each other in the axial direction. Fig. 20 In FIG. 1 , in order to facilitate understanding of the shapes of the three opposing port communication passages 110 , 130 , and 150 , the first opposing port communication passage 110 is shaded with dots.

[0113] Thus, in this embodiment, the three relative port communication paths 110, 130, 150 intersect in the radial direction of the rotating disk 40, and as shown in FIG. Fig.21 , Fig.25 As shown, the plurality of rotating disks 40 are inclined toward the axial direction of the rotating disk 40 in a manner that does not interfere with each other in the axial direction of the rotating disk 40 .

[0114] Thus, a flow path pattern can be formed using the three relative port communication paths 110, 130, 150, and the fluid flowing in the three relative port communication paths 110, 130, 150 can flow smoothly along the inclination, thereby reducing the pressure loss of the fluid. In addition, the plate thickness (i.e., the width in the axial direction) of the rotating disk 40 can be reduced, and the flow path switching device 1 can be miniaturized.

[0115] In addition, if Fig.25 As shown, the three opposing port communication passages 110, 130, 150 have rounded corners (marked "R" in the figure) at their inlets and outlets, so that the fluid flowing in the three opposing port communication passages 110, 130, 150 can flow smoothly along the slope more effectively.

[0116] (Third embodiment)

[0117] Next, the third embodiment will be described, but the points different from the first and second embodiments will be described, and the description of the points common to the first and second embodiments will be omitted.

[0118] In this embodiment, if Fig.26 and Fig. 27 As shown, the three relative port communication passages 110, 130, 150 are formed into a flat shape in a manner extending in the radial direction of the rotating disk 40. Thus, for the three relative port communication passages 110, 130, 150, it is possible to reduce the plate thickness of the rotating disk 40 while ensuring the flow path cross-sectional area. Therefore, it is possible to miniaturize the flow path switching device 1 while ensuring the flow rate of the fluid flowing in the three relative port communication passages 110, 130, 150. In addition, the three relative port communication passages 110, 130, 150 are formed in a manner that does not overlap with the connecting holes 120, 140, 160. In addition, in Fig.26In FIG. 1 , in order to facilitate understanding of the shapes of the three opposing port communication passages 110 , 130 , and 150 , the first opposing port communication passage 110 is shaded with dots.

[0119] The above-described embodiments are merely examples and do not limit the present disclosure in any way, and various improvements and modifications can of course be made without departing from the gist of the present disclosure.

[0120] For example, the rotating disk 40 only needs to have a plurality of adjacent port communication paths and relative port communication paths, and may also have two or more than four. In addition, the fixed disk port 70 and the outflow port 30 only need to be provided with a plurality of them, and may also be provided with two or more than four. Moreover, the rotating disk 40 only needs to be formed by stacking a plurality of circular plate members, and may also be formed by stacking two to four or more than six circular plate members.

[0121] Description of Reference Numerals

[0122] 1. Flow path switching device; 11. Housing; 12. Valve core; 20. Inflow port; 21. 1st inflow port; 22. 2nd inflow port; 23. 3rd inflow port; 30. Outflow port; 31. 1st outflow port; 32. 2nd outflow port; 33. 3rd outflow port; 40. Rotating disk; 41. Circular plate; 41a. 1st layer circular plate member; 41b. 2nd layer circular plate member; 41c. 3rd layer circular plate member; 41d. 4th layer circular plate member; 41e. 5th layer circular plate member; 50. Fixed disk; 51. Circular plate; 60. Rotating disk connection Passage; 70, fixed disk port; 71, 1st fixed disk port; 72, 2nd fixed disk port; 73, 3rd fixed disk port; 90, adjacent port connecting path; 91, 1st adjacent port connecting path; 92, 2nd adjacent port connecting path; 93, 3rd adjacent port connecting path; 110, 1st relative port connecting path; 130, 2nd relative port connecting path; 150, 3rd relative port connecting path; 170, adjacent port connecting path; 171, 1st adjacent port connecting path; 172, 2nd adjacent port connecting path; 173, 3rd adjacent port connecting path; L, center axis.

Claims

1. A flow path switching device, comprising: The first fixing member; a second fixing member; and a disc-shaped rotating member disposed between the first fixing member and the second fixing member, The first fixing member has a plurality of ports and the second fixing member has a plurality of ports. The rotating member includes a communication path for connecting the port of the first fixing member and the port of the second fixing member. In the flow path switching device, the rotating member is rotated about the central axis of the disk-shaped member to switch the combination of the port of the first fixed member and the port of the second fixed member connected by the communication path, thereby switching the flow path mode of the fluid flow. The flow path switching device is characterized in that: An adjacent port communication path and an opposite port communication path are provided as the communication path, The adjacent port communication passage is used to communicate the port of the first fixed member and the port of the second fixed member which are provided at adjacent positions in the circumferential direction of the rotating member when viewed from the axial direction of the rotating member. The opposing port communication passage is for communicating a port of the first fixing member and a port of the second fixing member, which are provided at positions opposing each other in the radial direction of the rotating member when viewed from the axial direction of the rotating member.

2. The flow path switching device according to claim 1, characterized in that: The plurality of opposing port communication passages intersect in the radial direction of the rotating member and are provided at different positions in the axial direction of the rotating member.

3. The flow path switching device according to claim 1, characterized in that: The plurality of opposing port communication passages intersect in the radial direction of the rotating member and are inclined so as not to interfere with each other in the axial direction of the rotating member.

4. The flow path switching device according to claim 2, characterized in that: The opposing port communication passage is formed in a flat shape so as to expand in the radial direction of the rotating member.

5. The flow path switching device according to any one of claims 1 to 4, characterized in that: The rotating member is formed by stacking a plurality of circular plate members. The plurality of disk members are each a resin molded body in which a portion of the communication path is formed.

6. The flow path switching device according to any one of claims 1 to 4, characterized in that: The first fixing member has at least three ports and the second fixing member has at least three ports, and the ports are arranged at positions offset from each other in the circumferential direction of the rotating member. The three or more opposing port communication passages are provided so as to intersect each other in the radial direction of the rotating member and so as not to interfere with each other in the axial direction of the rotating member.

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