Control valve

Abstract

The control valve disclosed herein comprises: a first housing having a plurality of first openings; a second housing having a second opening; a plate-shaped valve body selectively communicating between the plurality of first openings and the second openings via through holes; and a plurality of sealing members disposed within the first housing for each of the plurality of first openings. Each sealing member has a first communication port communicating with a first opening and a second communication port opening toward the valve body. The plurality of sealing members are housed within the first housing in a manner that allows them to slide relative to the valve body with the opening edge of the second communication port in a first direction.

Description

Technical Field

[0001] This disclosure relates to control valves.

[0002] This application claims priority to Japanese Patent Application No. 2024-045725, filed in Japan on March 21, 2024, the contents of which are incorporated herein by reference. Background Technology

[0003] Vehicles are equipped with a cooling system. This system cools the heat-generating components (e.g., an engine or motor) by circulating coolant between them and the heat-dissipating components (e.g., a radiator or heater). In this cooling system, the flow of coolant is controlled by a control valve located on the flow path connecting the heat-generating and heat-dissipating components.

[0004] The control valve comprises: an inlet housing having an inlet port; an outlet housing having a radiator port and a heater port; and a rotating disc disposed between the inlet housing and the outlet housing (for example, see Patent Document 1 below). According to this configuration, by rotating the rotating disc, the inlet housing and either port are connected through a hole formed in the rotating disc. Thus, coolant flowing into the inlet housing through the inlet port flows out through either port.

[0005] Prior art literature Patent documents Patent document 1: Japanese Patent Application Publication No. 2005-061417. Summary of the Invention

[0006] The problem that the invention aims to solve However, in the aforementioned prior art, the space surrounded by the inlet housing and the rotating disc is formed in a single space. Therefore, it is impossible to separate the coolant supplied to the radiator from the coolant supplied to the heater. Consequently, it is difficult to manage the coolant conditions (temperature or flow rate) for each of the flow paths.

[0007] This disclosure provides control valves that allow for easy management of coolant conditions for each of the flow paths.

[0008] Solution for solving the problem To address the aforementioned issues, the present disclosure adopts the following solution.

[0009] (1) A control valve according to one aspect of the present disclosure comprises: a first housing having a plurality of first openings for fluid passage; a second housing disposed opposite to the first housing in a first direction and having a second opening for fluid passage; a plate-shaped valve body having a through hole and selectively communicating the plurality of first openings and the second openings through the through hole by rotating between the first housing and the second housing in the first direction about an axis in the first direction; and a plurality of sealing members disposed within the first housing for each of the plurality of first openings, wherein the plurality of sealing members have a first communication port and a second communication port communicating with the first opening and communicating with the first communication port and opening toward the valve body, and the plurality of sealing members being accommodated within the first housing in a state in which the opening edge of the second communication port is in slidable contact with the valve body and in a manner in which they are displaceable relative to each other in the first direction.

[0010] According to this solution, the first opening and the valve body (through hole) are sealed by sealing components, which can prevent the mixing of fluids flowing into the first housing through each first opening within the first housing. This makes it easy to manage the temperature or flow rate of the fluid, thus enabling the fluid to flow in and out under desired conditions between the flow paths connected to the control valve.

[0011] Furthermore, in this design, each sealing component is arranged in a manner that allows for mutual displacement, thus each sealing component displaces according to the pressure of the fluid within it. Therefore, compared to a configuration where each sealing component is integrally connected (e.g., a configuration with a separator for each of the first openings), it is possible to properly seal the first opening and the valve body for each of the sealing components. In addition, each sealing component can be assembled individually, thus improving the assemblability of each sealing component relative to the first housing compared to a configuration where each sealing component is integrally connected.

[0012] (2) In the control valve involved in the above (1) scheme, it is preferred that, between the first housing and the sealing member, a force-applying member is provided for each of the sealing members to apply force to the sealing member toward the valve body.

[0013] According to this solution, the sealing performance between the opening edge of the second communication port in the sealing component and the valve body can be improved. Therefore, the sealing performance between the first opening and the valve body can be improved.

[0014] (3) In the control valve involved in the above scheme (1) or (2), it is preferable that the plurality of the aforementioned sealing components are formed in an arc shape extending in the circumferential direction around the aforementioned axis when viewed from the aforementioned first direction and abut against each other.

[0015] According to this solution, by having each sealing component abut against the others, the relative movement of each sealing component in the circumferential direction is restricted. Therefore, even when sealing components are installed individually, wobbling or other disturbances of the sealing components can be suppressed.

[0016] (4) In the control valve of any of the solutions in (1) to (3) above, preferably, a sealing receiving portion is formed in the first housing, in the portion surrounding the first opening, facing the valve body opening in the first direction, and a plurality of the sealing members have connecting cylinders that communicate with the first communication port and are inserted into the sealing receiving portion. According to this solution, the assemblability of each sealing member to the first housing can be improved. In addition, by the outer peripheral surface of the connecting cylinder abutting against the inner peripheral surface of the sealing receiving portion, the movement of each sealing member in the circumferential direction relative to the first housing can be restricted. As a result, the shaking of each sealing member can be suppressed.

[0017] (5) In the control valve involved in the above (4) scheme, it is preferred that the O-ring is located between the inner circumferential surface of the aforementioned sealing accommodating part and the outer circumferential surface of the aforementioned connecting cylinder.

[0018] According to this solution, the sealing performance between the connecting cylinder and the sealing housing can be improved. This prevents fluid leakage from the gap between the connecting cylinder and the sealing housing to the outside of the sealing component.

[0019] The effects of the invention According to one aspect of this disclosure, a control valve is provided that allows for easy management of coolant conditions for each of the flow paths. Attached Figure Description

[0020] Figure 1 This is a block diagram of the cooling system (independent mode) involved in the implementation method.

[0021] Figure 2 This is a block diagram of the cooling system (drive source priority cooling mode) involved in the implementation method.

[0022] Figure 3 This is a block diagram of the cooling system (battery-priority cooling mode) involved in the implementation method.

[0023] Figure 4 This is a block diagram of the cooling system (composite mode) involved in the implementation method.

[0024] Figure 5 This is a perspective view of the control valve involved in the implementation method.

[0025] Figure 6 This is an exploded perspective view of the control valve involved in the implementation method.

[0026] Figure 7 This is a top view of the rear side of the first housing involved in the embodiment.

[0027] Figure 8 This is a top-view side view of the second housing as described in the embodiment.

[0028] Figure 9 This is a rear side top view of the control valve involved in the implementation method.

[0029] Figure 10 Is with Figure 9 The cross-sectional view corresponding to the XX line.

[0030] Figure 11 Is with Figure 9 The cross-sectional view corresponding to the XI-XI line.

[0031] Figure 12 This is a top-side view of the distribution plate involved in the implementation method.

[0032] Figure 13 This is a top view of the rear side of the distribution plate involved in the implementation method.

[0033] Figure 14 This is a top-view view of the surface of the intermediate plate and the second housing involved in the embodiment.

[0034] Figure 15 This is an enlarged perspective view showing the state in which the control valve involved in the embodiment has disassembled the first housing.

[0035] Figure 16 Is with Figure 11 The cross-sectional view corresponding to the XVI-XVI line.

[0036] Figure 17 This is a circuit diagram of the cooling system (independent mode) involved in the implementation method.

[0037] Figure 18 This is an operational diagram illustrating the cooling system (independent mode) involved in the implementation method.

[0038] Figure 19 This is a circuit diagram of the cooling system (drive source priority cooling mode) involved in the implementation method.

[0039] Figure 20 This is an operational diagram illustrating the cooling system (drive source priority cooling mode) involved in the implementation method.

[0040] Figure 21 This is a circuit diagram of the cooling system (battery-priority cooling mode) involved in the implementation method.

[0041] Figure 22This is an operational diagram illustrating the cooling system (battery-priority cooling mode) involved in the implementation method.

[0042] Figure 23 This is a circuit diagram of the cooling system (composite mode) involved in the implementation method.

[0043] Figure 24 This is an operational diagram illustrating the cooling system (composite mode) involved in the implementation method.

[0044] Figure 25 This is a three-dimensional view of the control valve (integrated unit) involved in the modified example. Detailed Implementation

[0045] Next, embodiments of the present disclosure will be described based on the accompanying drawings. In the embodiments or variations described below, the same reference numerals are sometimes used for corresponding components and descriptions are omitted. In the following description, expressions such as "parallel" or "orthogonal," "center," and "coaxial," indicating relative or absolute configurations, not only indicate a strictly such configuration, but also indicate a state of relative displacement by angle or distance with tolerances or to the extent that the same function can be obtained. In this embodiment, "facing each other" is not limited to the case where the orthogonal directions (normal directions) of the two surfaces are consistent with each other, but also includes the case where the orthogonal directions intersect each other.

[0046] [Cooling System 1] Figures 1 to 4 This is a block diagram of cooling system 1. Figures 1 to 4 In, respectively, Figure 1 Showing the independent mode of both parties, Figure 2 This indicates the drive source priority cooling mode. Figure 3 Indicates the battery priority cooling mode. Figure 4 The composite mode is shown.

[0047] like Figures 1 to 4 As shown, the cooling system 1 is, for example, installed in an electric vehicle. Electric vehicles include electric vehicles, hybrid electric vehicles, plug-in hybrid electric vehicles, fuel cell vehicles, and other vehicles equipped with a motor as a drive source.

[0048] The cooling system 1 includes a battery flow path 2, a drive flow path 3, a radiator flow path 4, and a control valve 5 (EWV).

[0049] Battery circuit 2 is a circuit connected to devices (non-driving devices) used not only when the vehicle's power is on, but also when the vehicle's power is off (ready-off). Devices with relatively low operating temperatures are connected to battery circuit 2. For example, battery circuit 2 includes a first pump 6, a cooling device 7, a heating device 8, and a battery 9. The first pump 6, cooling device 7, heating device 8, and battery 9 are connected sequentially from upstream to downstream in battery circuit 2.

[0050] Pump 6 first pumps coolant (fluid) downstream in battery flow path 2. Pump 6 first pump 6 is, for example, an electric water pump.

[0051] Cooling equipment 7 includes, for example, a cooler.

[0052] Heating equipment 8 includes, for example, a condenser or a heater.

[0053] The drive flow path 3 is a circuit connected to a device (drive equipment) used for driving the vehicle at least when the vehicle's power is turned on (ready). The drive flow path 3 is connected to a device whose operating temperature range is prone to becoming relatively high. For example, a second pump 10 and a drive module 11 are provided on the drive flow path 3. The second pump 10 and the drive module 11 are connected sequentially from the upstream side to the downstream side on the drive flow path 3.

[0054] The second pump 10 pressurizes the coolant towards the downstream side of the drive flow path 3. The second pump 10 is, for example, an electric water pump.

[0055] The drive module 11 includes an electric drive unit comprising a motor (drive source) or inverter, a reducer, a converter, a charger, etc.

[0056] A radiator 15 is provided in the radiator flow path 4. The radiator 15 exchanges heat between the coolant flowing inside the radiator 15 and the outside air.

[0057] Control valve 5 functions as a so-called six-way valve. Control valve 5 is connected to the upstream and downstream ends of battery flow path 2, drive flow path 3, and radiator flow path 4, respectively. Control valve 5 switches the flow of coolant in cooling system 1 between battery flow path 2, drive flow path 3, and radiator flow path 4.

[0058] like Figure 1As shown, the control valve 5, for example, during normal vehicle operation or when the vehicle is stopped, separates the battery flow path 2, the drive flow path 3, and the radiator flow path 4 into independent closed loops (independent mode). Furthermore, normal vehicle operation refers to a state of low-load operation, where the drive module 11 and the battery 9 operate within their optimal temperature ranges. Additionally, "vehicle stopping" includes situations such as power cut-off and charging (normal charging, fast charging).

[0059] In the dual-independent mode, by activating the first pump 6, the coolant can circulate within the battery flow path 2 via the control valve 5. In this mode, the battery 9 is maintained within its optimal temperature range through heat exchange with the coolant circulating in the battery flow path 2. Furthermore, even in the dual-independent mode, the coolant can be cooled by heat exchange with the cooling device 7 or heated by heat exchange with the heating device 8. Therefore, the battery 9 is maintained within its optimal temperature range.

[0060] On the other hand, in the dual-independent mode, by activating the second pump 10 in the drive flow path 3, the coolant can circulate between the control valve 5 and the drive flow path 3. In the dual-independent mode, the drive module 11 maintains its optimal temperature range through heat exchange with the coolant circulating in the drive flow path 3.

[0061] like Figure 2 As shown, the control valve 5, for example, when the vehicle is under high load, makes the drive flow path 3 and the radiator flow path 4 a closed loop (drive source priority cooling mode). In addition, the high load of the vehicle refers to a state where there is a possibility that the drive module 11 may reach a temperature outside the optimal range, such as rapid acceleration or rapid deceleration.

[0062] In the drive source priority cooling mode, in battery flow path 2, similar to the dual independent mode, the coolant can circulate between control valve 5 and battery flow path 2 by activating the first pump 6.

[0063] On the other hand, in the drive source priority cooling mode, by activating the second pump 10 in the drive flow path 3, the coolant can circulate between the drive flow path 3 and the radiator flow path 4 via the control valve 5. In the drive source priority cooling mode, the relatively low-temperature coolant, which has already undergone heat exchange (cooling) by the radiator 15, passes through the drive module 11 in the drive flow path 3. As a result, the drive module 11 can be effectively cooled.

[0064] like Figure 3 As shown, the control valve 5, for example, when the vehicle is normally in motion or stopped, or when the outside temperature is high, or when there is a possibility that the battery 9 may reach a temperature outside the optimal range, makes the battery flow path 2 and the radiator flow path 4 a closed loop (battery priority cooling mode).

[0065] In battery-priority cooling mode, in battery flow path 2, by activating the first pump 6, coolant can circulate between battery flow path 2 and radiator flow path 4 via control valve 5. In battery-priority cooling mode, in battery 9, relatively low-temperature coolant that has undergone heat exchange (cooling) by radiator 15 passes through battery 9. Thus, battery 9 can be effectively cooled.

[0066] like Figure 4 As shown, control valve 5, for example, during normal vehicle operation or when stationary, or in low external temperature conditions, creates a closed loop encompassing battery flow path 2 and drive flow path 3 (combined mode). In combined mode, by activating pumps 6 and 10, coolant circulates between battery flow path 2 and drive flow path 3 via control valve 5. In combined mode, for example, coolant that has been heated through heat exchange with heating device 8 or drive module 11 is supplied to battery 9. This allows battery 9 to be effectively heated.

[0067] Thus, the cooling system 1 of this embodiment uses a single control valve 5 to switch the flow path between the three flow paths 2 to 4. In the cooling system 1, by using the control valve 5 to switch the flow of coolant between each flow path 2 to 4 in accordance with the state of the vehicle, it is easy to maintain the various devices connected to each flow path 2 to 4 at the optimal temperature.

[0068] <Control Valve 5> Figure 5 This is a 3D view of control valve 5. Figure 6 This is an exploded perspective view of control valve 5.

[0069] like Figure 5 , Figure 6 As shown, the control valve 5 includes a housing 21, a valve body 22, a sealing mechanism 23, and a drive unit 24. In the following description, the direction along the central axis O1 of the valve body 22 will be referred to only as the axial direction (first direction). In the axial direction, the side opposite to the drive unit 24 (first side) is called the surface side, and the side opposite to the drive unit 24 (second side) is called the back side. In addition, the direction that intersects the central axis O1 when viewed from the axial direction is called the radial direction, and the direction around the central axis O1 is called the circumferential direction.

[0070] <Outer Shell 21> The housing 21 constitutes the appearance of the control valve 5. The housing 21 is coaxially arranged with the central axis O1 and is formed in a cylindrical shape that is flat in the axial direction. The housing 21 includes a first housing 31, a second housing 32, and a dispensing component 33.

[0071] <First Shell 31> The first housing 31 is disposed on the surface side (first side in the axial direction) relative to the dispensing member 33. The first housing 31 includes a first base 41, a first inlet port 43, a second inlet port 44, a third inlet port 45, and a first connecting piece 46. The first housing 31 is integrally formed, for example, from a synthetic resin material.

[0072] The first base 41 is formed in the shape of a bottomed cylinder arranged coaxially with the central axis O1. The first housing 31 is arranged such that the opening of the first base 41 faces the rear side (the second side in the axial direction).

[0073] Figure 7 This is a top view of the rear side of the first housing 31.

[0074] like Figure 7 As shown, a through hole 41b is formed in the central part of the bottom wall 41a of the first base 41 in the radial direction, which penetrates the bottom wall 41a in the axial direction.

[0075] A first inlet 41c, a second inlet 41d, and a third inlet 41e are formed in the portion of the bottom wall 41a surrounding the through hole 41b. Each inlet 41c to 41e penetrates the bottom wall 41a axially. Each inlet 41c to 41e is formed at intervals, for example, equal intervals, in the circumferential direction. Furthermore, in the illustrated example, the opening areas of each inlet 41c to 41e are all set equally. However, the opening areas of each inlet 41c to 41e may also be different. Additionally, the interval between adjacent inlets 41c to 41e is not limited to equal intervals. A sealing receiving portion 41f is formed in the portion of the bottom wall 41a surrounding each inlet 41c to 41e. The sealing receiving portion 41f is an annular groove that is recessed towards a first side in the axial direction relative to the inner surface of the bottom wall 41a, and is coaxially arranged with each of the corresponding inlets 41c to 41e.

[0076] like Figure 5 As shown, the first inlet port 43 connects, for example, the control valve 5 to the downstream end of the battery flow path 2. The first inlet port 43 is formed in an L-shaped tubular form when viewed in cross-section along the axial direction. After extending from the opening edge of the first inlet 41c towards the surface side, the first inlet port 43 extends radially outward. The first inlet port 43 communicates with the first base 41 through the first inlet 41c. Figure 7As shown, the radially extending portion of the first inlet port 43 (hereinafter referred to as the first connector 43a) is positioned offset from the central axis O1 towards the first side (hereinafter referred to as the +L1 side) in the first radial direction L1, and extends towards the first side (hereinafter referred to as the +L2 side) of the second radial direction L2, which is orthogonal to the first radial direction L1. The end portion (+L2 side end) of the first connector 43a, viewed from above in the axial direction, protrudes further outward than the peripheral wall of the first base 41 (hereinafter referred to as the first peripheral wall 41g). The downstream end of the battery flow path 2 is connected to the first connector 43a.

[0077] like Figure 5 As shown, the second inlet port 44 connects, for example, the control valve 5 to the downstream end of the drive flow path 3. The second inlet port 44 is formed in an L-shaped tubular form when viewed in cross-section along the axial direction. After extending from the opening edge of the second inlet 41d towards the surface side, the second inlet port 44 extends radially outward. The second inlet port 44 communicates with the first base 41 through the second inlet 41d. Figure 7 As shown, the radially extending portion of the second inlet port 44 (hereinafter referred to as the second connector 44a) extends from a position offset from the central axis O1 toward the second side (hereinafter referred to as the -L1 side) in the first radial direction L1 when viewed from above, toward the second side (hereinafter referred to as the -L2 side) in the second radial direction L2. The end portion (the -L2 side end) of the second connector 44a protrudes further outward than the first peripheral wall 41g when viewed from above. The downstream end of the drive flow path 3 is connected to the second connector 44a.

[0078] like Figure 5 As shown, the third inlet port 45 connects, for example, the control valve 5 to the downstream end of the radiator flow path 4. The third inlet port 45 is formed in an L-shaped tubular form when viewed in cross-section along the axial direction. After extending from the opening edge of the third inlet 41e towards the surface side, the third inlet port 45 extends radially outward. The third inlet port 45 communicates with the first base 41 through the third inlet 41e. Figure 7 As shown, the radially extending portion of the third inlet port 45 (hereinafter referred to as the third connector 45a) extends towards the -L2 side, offset from the central axis O1 to the +L1 side when viewed from above. The end portion (the -L2 side end) of the third connector 45a protrudes further outward than the first peripheral wall 41g when viewed from above. The downstream end of the radiator flow path 4 is connected to the third connector 45a.

[0079] The first joint 43a and the third joint 45a extend along the same straight line along the second radial direction L2. Furthermore, the second joint 44a and the third joint 45a extend parallel to the second radial direction L2. That is, each joint 43a to 45a does not protrude towards the first radial direction L1 relative to the first base 41 when viewed from above. However, the extension direction of each joint 43a to 45a can be appropriately changed.

[0080] The first connecting piece 46 is the part that connects the first housing 31 to the distribution member 33 (the distribution plate 60 described later). The first connecting piece 46 protrudes outward in the radial direction from the first peripheral wall 41g. A plurality of first connecting pieces 46 are provided at intervals along the circumferential direction on the first peripheral wall 41g. At the radially outer end (end portion) of each first connecting piece 46, a first fastening hole 46a is formed that penetrates through each first connecting piece 46 in the axial direction.

[0081] <Second Shell 32> Figure 8 This is a top-side view of the surface of the second housing 32.

[0082] like Figure 6 , Figure 8 As shown, the second housing 32 is disposed on the rear side relative to the dispensing member 33. The second housing 32 includes a second base 51, a first outlet port 53, a second outlet port 54, a third outlet port 55, a second connecting piece 56, and a pedestal piece 57. The second housing 32 is integrally formed, for example, from a synthetic resin material.

[0083] The second base 51 is formed in a bottomed cylindrical shape and is coaxially arranged with the central axis O1. The second housing 32 is arranged such that the opening of the second base 51 faces the surface side. The outer diameter of the second base 51 is smaller than the outer diameter of the first base 41. However, the outer diameter of the second base may also be larger than the outer diameter of the first base 41. A first outlet 51c, a second outlet 51d, and a third outlet 51e are formed on the bottom wall 51a of the second base 51.

[0084] The first outlet 51c is formed in the portion of the bottom wall 51a on the +L2 side relative to the central axis O1 and located in the center of the first radial direction L1. When viewed from above, the first outlet 51c is positioned offset from each inlet 41c to 41e.

[0085] The second outlet 51d extends in a straight line along the first radial direction L1 from the central portion (including the portion of the central axis O1) in the second radial direction L2 of the bottom wall 51a. That is, the second outlet 51d is formed as an elongated hole with the first radial direction L1 (radial direction) as its length direction.

[0086] The third outlet 51e is formed in the bottom wall 51a on the -L2 side relative to the second outlet 51d. The third outlet 51e extends parallel to the second outlet 51d along the first radial direction L1. In the illustrated example, the length of the third outlet 51e in the first radial direction L1 is shorter than that of the second outlet 51d.

[0087] Figure 9 This is a top-down view of the rear of control valve 5. Figure 10 Is with Figure 9 The cross-sectional view corresponding to the XX line.

[0088] like Figure 9 , Figure 10 As shown, the first outlet port 53 connects, for example, the control valve 5 to the upstream end of the battery flow path 2. The first outlet port 53 is formed in an L-shaped tubular form when viewed in cross-section along the axial direction. After extending from the opening edge of the first outlet 51c towards the back side, the first outlet port 53 extends towards the +L2 side (outer side in the radial direction). The first outlet port 53 communicates with the interior of the second base 51 through the first outlet 51c. The end portion (+L2 side end) of the radially extending portion of the first outlet port 53 (hereinafter referred to as the first connector 53a) protrudes further outward than the peripheral wall of the second base 51 (hereinafter referred to as the second peripheral wall 51g). The upstream end of the battery flow path 2 is connected to the first connector 53a. When viewed from above, the first connector 53a coincides with a portion of any of the first connecting pieces 46.

[0089] The second outlet port 54 connects, for example, the control valve 5 to the upstream end of the drive flow path 3. The second outlet port 54 is an L-shaped tubular component when viewed in cross-section along the axial direction and when viewed from above. Specifically, the second outlet port 54 includes a second lead-out portion 54a and a second connector 54b.

[0090] The second outlet 54a extends from the opening edge of the second outlet 51d toward the rear side and covers the entire second outlet 51d in the first radial direction L1 from the rear side. That is, the second outlet port 54 is connected to the second outlet 51d through the second outlet 54a.

[0091] The second connector 54b extends from the -L1 side end of the second lead-out portion 54a toward the -L2 side (outer side). The end portion (-L2 side end) of the second connector 54b protrudes further outward than the second peripheral wall 51g when viewed from above. The upstream end of the drive flow path 3 is connected to the end portion of the second connector 54b. Furthermore, in the illustrated example, the second connector 54b coincides with a portion of any of the second connecting pieces 56 when viewed from above.

[0092] The third outlet port 55 connects, for example, the control valve 5 to the upstream end of the radiator flow path 4. The third outlet port 55 is L-shaped when viewed in cross-section along the axial direction, and T-shaped when viewed from the rear side. Specifically, the third outlet port 55 includes a third lead-out portion 55a and a third connector 55b.

[0093] The third outlet 55a extends from the opening edge of the third outlet 51e toward the rear side and covers the entire third outlet 51e in the first radial direction L1 from the rear side.

[0094] The third connector 55b extends from the +L1 side end of the third lead-out portion 55a toward the -L2 side. The end portion (-L2 side end) of the third connector 55b, when viewed from above, protrudes further outward than the second peripheral wall 51g. The downstream end of the radiator flow path 4 is connected to the third connector 55b. When viewed from above, the third connector 55b coincides with a portion of any of the first connecting pieces 46.

[0095] like Figure 9 As shown, the second connecting piece 56 is the part that connects the second housing 32 to the dispensing member 33. The second connecting piece 56 protrudes radially outward from the second peripheral wall 51g. Multiple second connecting pieces 56 are provided at intervals along the circumferential direction. At the radially outer end (end portion) of each second connecting piece 56, a second fastening hole 56a is formed that penetrates each second connecting piece 56 in the axial direction.

[0096] Each second connecting piece 56 is positioned in a position that does not overlap with each first connecting piece 46 when viewed from above. In the illustrated example, each second connecting piece 56 is arranged between adjacent first connecting pieces 46 in the circumferential direction. The radial protrusion of the second connecting piece 56 from the second circumferential wall 51g is greater than the radial protrusion of the first connecting piece 46 from the first circumferential wall 41g. However, the position or shape of each connecting piece 46, 56 can be appropriately changed.

[0097] The mounting plate 57 is used to fix the control valve 5 to the vehicle body. The mounting plate 57 protrudes radially outward from a position in the second peripheral wall 51g that is offset in the circumferential direction from each of the second connecting plates 56. The mounting plate 57 is mounted to the vehicle body via a mounting portion 58. The mounting plate 57 is formed of a rubber material or the like. In the illustrated example, the mounting portion 58 is positioned in a non-overlapping position relative to each of the first connecting plate 46 and the second connecting plate 56 when viewed from above.

[0098] <Distribution Component 33> like Figure 6As shown, the distribution component 33 is a component that performs the distribution of coolant between the corresponding inlet ports 43 to 45 and outlet ports 53 to 55. The distribution component 33 is constructed by stacking the distribution plate 60 and the intermediate plate 61 in the axial direction.

[0099] The distribution plate 60 is located between the first housing 31 and the second housing 32. The distribution plate 60 includes a partition 62, a first mounting plate 63, and a second mounting plate 64.

[0100] Figure 11 Is with Figure 9 The cross-sectional view corresponding to the XI-XI line. Figure 12 This is a top-side view of the surface of the distribution plate 60.

[0101] like Figure 11 , Figure 12 As shown, the partition 62 is formed in the shape of a circular plate with its thickness in the axial direction. The partition 62 is held in a state where its outer peripheral portion is sandwiched between the first peripheral wall 41g and the second peripheral wall 51g in the axial direction, thus separating the inner space of the first housing 31 from the inner space of the second housing 32. In the partition 62, a plurality of inflow circuits (first circuits) 71a to 71g and a plurality of outflow circuits (second circuits) 72a to 72e are formed (see reference). Figure 13 ).

[0102] like Figure 12 As shown, inflow loops 71a to 71g are formed in the portion extending from the surface of the partition 62 to its central portion in the axial direction. In this embodiment, inflow loops 71a to 71g are the first inflow loop 71a, the second inflow loop 71b, the third inflow loop 71c, the fourth inflow loop 71d, the fifth inflow loop 71e, the sixth inflow loop 71f, and the seventh inflow loop 71g. That is, the number of inflow loops 71a to 71g (for example, 7) is greater than the number of inflow inlets 41c to 41e (for example, 3). Inflow loops 71a to 71g are formed at intervals in the partition 62 in the circumferential direction.

[0103] The surface-side opening of the first inflow loop 71a, when viewed from above on the surface side, is formed in a trapezoidal shape with its width gradually increasing in the circumferential direction as it moves outward toward the radial direction. Specifically, the surface-side opening edge of the first inflow loop 71a is formed by a first outer edge 71a1, a first inner edge 71a2, and a pair of first side edges 71a3.

[0104] The first outer edge 71a1 forms the outermost edge in the radial direction of the surface side opening edge of the first inflow circuit 71a. The first outer edge 71a1 is formed in the shape of an arc protruding outward in the radial direction.

[0105] The first inner edge portion 71a2 constitutes the inner edge in the radial direction of the surface-side opening edge of the first inflow loop 71a. The first inner edge portion 71a2 is formed in the shape of an arc protruding outward in the radial direction. The circumferential length of the first inner edge portion 71a2 is shorter than the circumferential length of the first outer edge portion 71a1. In the illustrated example, the radius of curvature of the first inner edge portion 71a2 is smaller than the radius of curvature of the first outer edge portion 71a1.

[0106] A pair of first side edge portions 71a3 connect one end of the first outer edge portion 71a1 and the first inner edge portion 71a2 in the circumferential direction to each other, and the other end of the first outer edge portion 71a1 and the first inner edge portion 71a2 in the circumferential direction to each other. Each first side edge portion 71a3 is formed in a circular arc shape that convexes towards each other in the circumferential direction. Furthermore, the boundary portions between the first side edge portion 71a3 and the first outer edge portion 71a1, and the boundary portions between the first side edge portion 71a3 and the first inner edge portion 71a2 are rounded.

[0107] The first inflow loop 71a is formed in a tapering shape, with the opening area (area viewed from above on the surface side) gradually decreasing as it moves from the surface side towards the back side. When viewed from above, the back side opening of the first inflow loop 71a coincides with the central portion in the circumferential and radial directions within the surface side opening of the first inflow loop 71a.

[0108] The second inflow circuit 71b is located on one side of the first inflow circuit 71a in the circumferential direction. Like the first inflow circuit 71a, the surface-side opening of the second inflow circuit 71b is trapezoidal in shape when viewed from above. Specifically, the surface-side opening edge of the second inflow circuit 71b is formed by a second outer edge 71b1, a second inner edge 71b2, and a pair of second side edges 71b3.

[0109] The second inflow loop 71b is formed in a tapering shape, with the opening area gradually decreasing from the surface side to the back side. When viewed from above, the back side opening of the second inflow loop 71b coincides with the outer side of the surface side opening in the second inflow loop 71b in the circumferential direction.

[0110] The third inflow loop 71c is located on one side of the second inflow loop 71b in the circumferential direction. The third inflow loop 71c extends the entire length in the axial direction with a uniform opening area. When viewed from above, the third inflow loop 71c is formed as an elongated circle with its circumferential width gradually increasing towards the radial direction outward and its length along the radial direction. Specifically, the surface-side opening edge of the third inflow loop 71c is formed by a third outer edge portion 71c1, a third inner edge portion 71c2, and a pair of third side edge portions 71c3.

[0111] The third outer edge 71c1 is formed in the shape of an arc protruding outward in the radial direction.

[0112] The third inner edge portion 71c2 is formed in the shape of an arc protruding inward in the radial direction. The circumferential length of the third inner edge portion 71c2 is shorter than the circumferential length of the third outer edge portion 71c1. In the illustrated example, the radius of curvature of the third inner edge portion 71c2 is smaller than the radius of curvature of the third outer edge portion 71c1.

[0113] A pair of third side edge portions 71c3 are formed in a circumferentially separated, convex arc shape. The third side edge portion 71c3 and the third outer edge portion 71c1 are smoothly connected to each other, as are the third side edge portion 71c3 and the third inner edge portion 71c2.

[0114] The fourth inflow loop 71d is located on one side of the circumferential direction relative to the third inflow loop 71c. Like the third inflow loop 71c, the fourth inflow loop 71d is formed in an elongated oval shape, gradually increasing in width in the circumferential direction as it moves outward towards the radial direction, with the radial direction as its length. Specifically, the surface-side opening edge of the fourth inflow loop 71d is formed by a fourth outer edge portion 71d1, a fourth inner edge portion 71d2, and a pair of fourth side edge portions 71d3.

[0115] The fifth inflow circuit 71e is located on one side relative to the fourth inflow circuit 71d in the circumferential direction and facing the first inflow circuit 71a in the radial direction. Like the first inflow circuit 71a, the fifth inflow circuit 71e, when viewed from the surface side, is formed in a trapezoidal shape with its width gradually increasing in the circumferential direction as it moves outward in the radial direction. Specifically, the surface-side opening of the fifth inflow circuit 71e is formed by a fifth outer edge portion 71e1, a fifth inner edge portion 71e2, and a pair of fifth side edge portions 71e3.

[0116] The sixth inflow loop 71f is located on one side of the circumferential direction relative to the fifth inflow loop 71e. Like the third inflow loop 71c, the sixth inflow loop 71f is formed in an elongated oval shape, gradually increasing in width circumferentially towards the radially outward direction and extending radially. Specifically, the surface-side opening edge of the sixth inflow loop 71f is formed by a sixth outer edge portion 71f1, a sixth inner edge portion 71f2, and a pair of sixth side edge portions 71f3.

[0117] The seventh inflow circuit 71g is located between the sixth inflow circuit 71f and the first inflow circuit 71a. The surface-side opening of the seventh inflow circuit 71g is formed in a trapezoidal shape, wider in the circumferential direction than that of the first inflow circuit 71a. Specifically, the surface-side opening edge of the seventh inflow circuit 71g is formed by a seventh outer edge 71g1, a seventh inner edge 71g2, and a pair of seventh side edges 71g3. The seventh inflow circuit 71g is formed in a tapering shape, with the opening area gradually decreasing from the surface side to the back side. When viewed from above, the back-side opening of the seventh inflow circuit 71g coincides with the central portion in the circumferential direction within the surface-side opening of the seventh inflow circuit 71g.

[0118] Figure 13 This is a top view of the rear side of the distribution plate 60.

[0119] like Figure 11 , Figure 13 As shown, outflow circuits 72a to 72e are the first outflow circuit 72a, the second outflow circuit 72b, the third outflow circuit 72c, the fourth outflow circuit 72d, and the fifth outflow circuit 72e. Outflow circuits 72a to 72e are spaced apart in the partition 62 in the circumferential or radial direction. Outflow circuits 72a to 72e are formed in the central portion of the partition 62 from the back side to the axial direction. In this embodiment, the number of outflow circuits 72a to 72e (e.g., 5) is less than the number of inflow circuits 71a to 71g (e.g., 7). The central portion of the outflow circuits 72a to 72e in the axial direction of the partition 62 communicates with at least one of the inflow circuits 71a to 71g. That is, the outflow circuits 72a to 72e collect at least a portion of the inflow circuits 71a to 71g.

[0120] The first outflow circuit 72a is formed at a position that coincides with the first inflow circuit 71a when viewed from the rear side. The first outflow circuit 72a is connected only to the first inflow circuit 71a among the inflow circuits 71a to 71g. The first outflow circuit 72a and the first inflow circuit 71a constitute a first connecting circuit 75a that extends through the partition 62 in the axial direction.

[0121] The second outflow circuit 72b is formed at a position that coincides with the second inflow circuit 71b when viewed from the rear side. The second outflow circuit 72b is connected only to the second inflow circuit 71b of each of the inflow circuits 71a to 71g. The second outflow circuit 72b and the second inflow circuit 71b constitute a second connecting circuit 75b that extends through the partition 62 in the axial direction.

[0122] The third outflow circuit 72c is a groove extending radially (second radial direction L2) in the partition 62, including the portion of the central axis O1. The third outflow circuit 72c communicates with the seventh inflow circuit 71g at its +L2 side end. The third outflow circuit 72c also communicates with the third inflow circuit 71c at its -L2 side end. That is, the third outflow circuit 72c communicates with the third inflow circuit 71c and the seventh inflow circuit 71g in the inflow circuits 71a to 71g. The third inflow circuit 71c and the seventh inflow circuit 71g converge into the third outflow circuit 72c, and together with the third outflow circuit 72c, form the third connecting circuit 75c.

[0123] The fourth outflow circuit 72d is located in the partition 62 on the opposite side (+L1 side) of the third outflow circuit 72c and the first outflow circuit 72a. The fourth outflow circuit 72d is a groove arranged side by side with the third outflow circuit 72c and extending along the second radial direction L2. In the illustrated example, the fourth outflow circuit 72d is formed in an arc shape protruding towards the -L1 side. The fourth outflow circuit 72d communicates with the sixth inflow circuit 71f at its +L2 side end. The fourth outflow circuit 72d communicates with the fourth inflow circuit 71d at its -L side end. That is, the fourth outflow circuit 72d communicates with the fourth inflow circuit 71d and the sixth inflow circuit 71g among the inflow circuits 71a to 71g. The fourth inflow circuit 71d and the sixth inflow circuit 71f converge into the fourth outflow circuit 72d and together with the fourth outflow circuit 72d, form the fourth connecting circuit 75d.

[0124] The fifth outflow circuit 72e is located in the partition 62 on the opposite side to the fourth outflow circuit 72d and the third outflow circuit 72c. The fifth outflow circuit 72e is formed at a position that coincides with the fifth inflow circuit 71e when viewed from above. The fifth outflow circuit 72e communicates only with the fifth inflow circuit 71e of each of the inflow circuits 71a to 71g. The fifth outflow circuit 72e and the fifth inflow circuit 71e constitute a fifth connecting circuit 75e that extends through the partition 62 in the axial direction.

[0125] like Figure 11 , Figure 12 As shown, a recess 81 opening towards the surface is formed at the central portion in the radial direction of the partition 62. The recess 81 is formed in a cylindrical shape coaxial with the central axis O1. A shaft retaining portion 82 protruding towards a first side in the axial direction is formed on the bottom wall of the recess 81. The shaft retaining portion 82 is formed in a cylindrical shape with a smaller inner diameter than the recess 81 and coaxial with the central axis O1. In the illustrated example, the axial height of the shaft retaining portion 82 is lower than the axial depth of the recess 81.

[0126] like Figure 12As shown, a pair of stop walls 83 are provided within the recess 81. Each stop wall 83 extends radially within the recess 81, positioned between the outer peripheral surface of the shaft retaining portion 82 and the inner peripheral surface of the recess 81. The space on the abscissa side of the space divided by each stop wall 83 within the recess 81 functions as a receiving space S1. However, the angle between each stop wall 83 can be appropriately changed.

[0127] like Figure 5 , Figure 10 As shown, the first mounting piece 63 assembles the first housing 31 and the distribution plate 60. The first mounting piece 63 protrudes radially outward from the surface-side portion of the outer peripheral surface of the partition 62. Multiple first mounting pieces 63 are spaced apart circumferentially. Each first mounting piece 63 coincides with a corresponding first connecting piece 46 when viewed from above. A first through hole 63a is formed at the radially outer end (end portion) of each first mounting piece 63, penetrating axially through each first mounting piece 63. The first housing 31 and the distribution plate 60 are assembled by a first fastening member 77 (e.g., a screw, etc.) penetrating each other from the back side relative to the overlapping first mounting pieces 63 and first connecting pieces 46. Specifically, the first fastening member 77 is tightened into the first fastening hole 46a through the first through hole 63a. Furthermore, as... Figure 11 As shown, in the portion of the partition 62 located radially outward from the inflow circuits 71a to 71g, a first gasket 90 is provided that comprehensively surrounds each of the inflow circuits 71a to 71g. The first gasket 90 is sandwiched between the distribution plate 60 and the first housing 31.

[0128] like Figure 5 , Figure 12 As shown, the second mounting piece 64 assembles the second housing 32 and the distribution plate 60. The second mounting piece 64 protrudes radially outward from the portion of the outer peripheral surface of the partition 62 located on the back side, and from a position offset from the first mounting piece 63 in the circumferential direction. Multiple second mounting pieces 64 are provided at intervals along the circumferential direction. Furthermore, the first mounting piece 63 and the second mounting piece 64 can be viewed from the circumferential direction and at least partially overlap each other. Therefore, the thickness of the mounting pieces 63 and 64 can be ensured while suppressing the thickness of the partition 62.

[0129] Each of the second mounting pieces 64 coincides with its corresponding second connecting piece 56 when viewed from above. A second through hole 64a is formed at the outer radial end (end portion) of each second mounting piece 64, extending axially through each second mounting piece 64. The second housing 32 and the distribution plate 60 are assembled by means of a second fastening member 78 (e.g., a screw) that passes through the overlapping second mounting pieces 64 and second connecting pieces 56 from the surface side. Specifically, the second fastening member 78 is tightened into the second fastening hole 56a through the second through hole 64a.

[0130] Figure 14 This is a top view of the intermediate plate 61 and the second housing 32.

[0131] like Figure 11 , Figure 14 As shown, the intermediate plate 61 connects each outflow loop 72a to 72e with the outflow outlets 51c to 51e. The intermediate plate 61 overlaps with the partition 62 on the rear side. When viewed from above, the intermediate plate 61 is formed in the shape of a circular plate with the same shape as the partition 62. The intermediate plate 61 is sandwiched between the partition 62 and the bottom wall 51a.

[0132] like Figure 8 , Figure 14 As shown, a plurality of connection ports 61a to 61e are formed on the intermediate plate 61. The plurality of connection ports 61a to 61e are the first connection port 61a, the second connection port 61b, the third connection port 61c, the fourth connection port 61d, and the fifth connection port 61e.

[0133] The first connection port 61a extends axially through the intermediate plate 61, at positions that coincide with the -L1 side end of the second outlet 51d and the first outlet circuit 72a when viewed from above. That is, the first connection port 61a connects the second outlet 51d and the first outlet circuit 72a.

[0134] The second connection port 61b is located on one side of the circumferential direction relative to the first connection port 61a. The second connection port 61b extends axially through the intermediate plate 61, passing through the positions in the intermediate plate 61 that coincide with the -L1 side end of the third outlet 51e and the second outlet circuit 72b when viewed from above. That is, the third outlet 51e is connected to the second outlet circuit 72b via the second connection port 61b.

[0135] The third connection port 61c is located on one side of the circumferential direction relative to the second connection port 61b. The third connection port 61c extends axially through the intermediate plate 61, coinciding with the +L1 side end of the third outlet 51e and the -L2 side end of the fourth outlet circuit 72d when viewed from above. That is, the third outlet 51e is connected to the fourth outlet circuit 72d via the third connection port 61c.

[0136] The fourth connection port 61d is located on one side of the circumferential direction relative to the third connection port 61c. The fourth connection port 61d extends axially through the intermediate plate 61, passing through the positions in the intermediate plate 61 that coincide with the +L1 side end of the second outlet 51d and the fifth outlet circuit 72e when viewed from above. That is, the second outlet 51d is connected to the first outlet circuit 72a through the first connection port 61a, and is connected to the fifth outlet circuit 72e through the fourth connection port 61d.

[0137] The fifth connection port 61e is located on one side of the circumferential direction relative to the fourth connection port 61d. The fifth connection port 61e extends axially through the positions that coincide with the +L2 side end of the third outflow circuit 72c and the first outflow outlet 51c when viewed from above. That is, the first outflow outlet 51c is connected to the third outflow circuit 72c through the fifth connection port 61e.

[0138] like Figure 11 As shown, a second gasket 91 is provided between the intermediate plate 61 and the distribution plate 60. The second gasket 91 is sandwiched between the intermediate plate 61 and the distribution plate 60 in a manner that separates each outflow loop 72a to 72e. Thus, each outflow loop 72a to 72e is sealed.

[0139] Furthermore, a third gasket 92 is provided between the intermediate plate 61 and the second housing 32 (second peripheral wall 51g). The third gasket 92 is sandwiched between the intermediate plate 61 and the second housing 32 in a manner that separates each outlet 51c to 51e. As a result, each outlet 51c to 51e is sealed.

[0140] <Valve Body 22> like Figure 6 , Figure 11 As shown, valve body 22 switches the connection and disconnection between each flow inlet 41c to 41e and each flow circuit 71a to 71g. Valve body 22 is configured to rotate around central axis O1 while coinciding with the surface side of distribution plate 60. Specifically, valve body 22 includes rotor 85 and protrusion 86.

[0141] like Figure 6 , Figure 12 As shown, the rotor 85 is formed in the shape of a circular plate arranged coaxially with the central axis O1. The outer periphery of the rotor 85 is located further outward in the radial direction than each inflow circuit 71a to 71g. Therefore, the rotor 85 overlaps with the distribution plate 60 in such a way that it covers each inflow circuit 71a to 71g from the surface side.

[0142] A connecting hole 85a is formed at the center of the rotor 85 in the radial direction. The connecting hole 85a extends through the rotor 85 in the axial direction. Multiple through holes (first through hole 85b, second through hole 85c, and third through hole 85d) are formed in the rotor 85. Each through hole 85b to 85d extends through the rotor 85 in the axial direction. In the illustrated example, the through holes 85b to 85d are formed at equal intervals in the circumferential direction. That is, the number of through holes 85b to 85d is the same as the number of inlet holes 41c to 41e, and fewer than the number of inlet loops 71a to 71g.

[0143] In this embodiment, all through holes 85b to 85d are formed to be identical in shape and size. In the following description, the shape of each through hole 85b to 85d will be described using the first through hole 85b as an example. The first through hole 85b is, for example, formed to have the same shape and size as the surface-side opening edge of the third inflow circuit 71c. That is, the first through hole 85b, when viewed from above, is formed as an elongated oval shape, gradually increasing in width in the circumferential direction as it moves outward in the radial direction, and having the radial direction as its length. Specifically, the opening edge of the first through hole 85b is formed by an outer edge portion 87, an inner edge portion 88, and a side edge portion 89.

[0144] The outer edge 87 is formed in the shape of an arc protruding outward in the radial direction.

[0145] The inner edge 88 is formed in the shape of an arc protruding inward in the radial direction. The circumferential length of the inner edge 88 is shorter than the circumferential length of the outer edge 87. In the illustrated example, the radius of curvature of the inner edge 88 is smaller than the radius of curvature of the outer edge 87.

[0146] A pair of side edges 89 are formed in a mutually convex arc shape in the circumferential direction. The side edges 89 and the outer edge 87, as well as the side edges 89 and the inner edge 88, are smoothly connected to each other. Furthermore, the shapes of each through hole 85b to 85d may be different from each other.

[0147] The protrusion 86 protrudes radially from the portion of the rotor 85 located between the connecting hole 85a and each of the through holes 85b to 85d toward the rear side. Viewed from above, the protrusion 86 is formed in an arc shape centered on the central axis O1, shorter in the circumferential direction than the receiving space S1. The protrusion 86 is received within the receiving space S1. The rotation of the valve body 22 around the central axis O1 is restricted by the protrusion 86 abutting against the surfaces of each stop wall 83 facing toward the receiving space S1. In this embodiment, the rotor 85 can stop at four positions with a rotation angle of 30° intervals around the central axis O1, corresponding to the various flow modes described above (dual independent mode, drive source priority mode, battery priority mode, and combined mode). That is, the rotor 85 is configured to reciprocate within a range of 120° around the central axis O1. In this case, the product of the number of each through hole 85b to 85d and the stop position of valve body 22 (e.g., 12) is greater than the number of inflow circuits 71a to 71g.

[0148] As the valve body 22 rotates about the central axis O1, at least a portion of each of the through holes 85b to 85d and each of the inflow circuits 71a to 71g coincides when viewed from above, thereby connecting each of the inflow circuits 71a to 71g and the inlet 41c to 41e to each other. On the other hand, as the valve body 22 rotates about the central axis O1, the portion of the rotor 85 that does not have through holes 85b to 85d coincides with each of the inflow circuits 71a to 71g when viewed from above, thereby blocking the outflow circuits 72a to 71g.

[0149] Specifically, in this embodiment, the control valve 5 has the following connections: the first through-hole 85b and the stop position of the valve body 22 are respectively connected to any one of the inflow circuits 5 to 71g (connections to other inflow circuits are cut off by the rotor 85); the second through-hole 85c and the stop position of the valve body 22 are respectively connected to any one of the inflow circuits 1, 2, and 71g (connections to other inflow circuits are cut off by the rotor 85); and the third through-hole 85d and the stop position of the valve body 22 are respectively connected to any one of the inflow circuits 2 to 5 71e (connections to other inflow circuits are cut off by the rotor 85).

[0150] In this case, regarding a through-hole and an inflow loop, the area of ​​the connection between the through-hole and the inflow loop (the area of ​​the overlapping portion when viewed from above) gradually increases as the connection between the through-hole and the inflow loop moves from a state where the connection is interrupted to a state where it is connected. Then, the connection area becomes the largest when the entire through-hole coincides with the inflow loop. Thereafter, as the valve body 22 rotates further, the connection area gradually decreases.

[0151] <Sealing Mechanism 23> like Figure 6 As shown, the sealing mechanism 23 connects the corresponding inlets 41c to 41e and the through holes 85b to 85d to each other within the first housing 31. That is, the sealing mechanism 23 is provided for each of the inlets 41c to 41e (and for each through hole 85b to 85d). All sealing mechanisms 23 have the same configuration. Therefore, in the following description, the sealing mechanism 23 connecting the third inlet 41e and the third through hole 85d will be used as an example to describe the details of the sealing mechanism 23.

[0152] Figure 15 This is an enlarged perspective view of the control valve 5 with the first housing 31 disassembled.

[0153] like Figure 15 As shown, the sealing mechanism 23 includes a sealing component 100 and a force-applying component 101.

[0154] The sealing member 100 forms a separate sealed space S2 within the first housing 31 between the third inlet 41e and the third through hole 85d. Each sealing member 100 is independently disposed within the first housing 31 in a manner that allows displacement at least in the axial direction. The sealing member 100 includes a space forming portion 105, an inward rib 106, and a connecting sleeve 107.

[0155] Figure 16 Is with Figure 11 The cross-sectional view corresponding to the XVI-XVI line.

[0156] like Figure 15 , Figure 16 As shown, the space forming portion 105, when viewed from above, is formed in the shape of an arc extending in the circumferential direction and in the shape of a box with an opening facing the rear side. The peripheral wall 110 of the space forming portion 105 has an outer side wall 110a, an inner side wall 110b, and a pair of transverse side walls 110c.

[0157] like Figure 16 As shown, the outer wall 110a is formed in an arc shape coaxial with the central axis O1 when viewed from above. The outer surface of the outer wall 110a is close to or abuts the inner surface of the first circumferential wall 41g.

[0158] The inner wall 110b, when viewed from above, is formed in an arc shape coaxial with the central axis O1. The inner wall 110b is located on the outer side in the radial direction relative to the connecting hole 85a. The circumferential length of the inner wall 110b is shorter than the circumferential length of the outer wall 110a.

[0159] The transverse sidewalls 110c connect the circumferential ends of the outer sidewalls 110a and the inner sidewalls 110b to each other at their radially facing ends. Each transverse sidewall 110c extends in a direction that approaches each other in the circumferential direction as it moves toward the inner side in the radial direction. The transverse sidewall 110c of one sealing member 100 on one side of the circumferential direction and the transverse sidewall 110c of the other sealing member 100 on the other side of the circumferential direction of adjacent sealing mechanisms 23 contact each other in the circumferential direction. Therefore, the relative movement of each sealing mechanism 23 (sealing member 100) relative to each other in the circumferential direction is restricted.

[0160] Viewed from above, the third through hole 85d is recessed inside the peripheral wall 110 (space forming portion 105). That is, the back opening of the space forming portion 105 functions as a back communication port 105a communicating with the third through hole 85d. The third through hole 85d reciprocates between a pair of transverse sidewalls 110c around the central axis O1 as the valve body 22 rotates. The back end face of the peripheral wall 110 (outer sidewall 110a, inner sidewall 110b, and transverse sidewalls 110c) is formed as a flat surface orthogonal to the axial direction. The back end face of the peripheral wall 110 is in close contact with the surface of the rotor 85. That is, the back end face of the peripheral wall 110 functions as a sliding surface (sealing surface) that slides on the surface of the rotor 85 as the rotor 85 rotates.

[0161] like Figure 11 , Figure 16 As shown, the inward rib 106 protrudes from the inner sidewall 110b toward the inner side in the radial direction. The inward rib 106 approaches the boss 85f in the rotor 85 from the outer side in the radial direction relative to the boss 85f located around the connecting hole 85a. The boss 85f bulges out from the rotor 85 toward the surface side. That is, the sealing member 100 is restricted from moving in the radial direction relative to the first housing 31 and the rotor 85 between the inner surface of the first peripheral wall 41g and the outer peripheral surface of the boss 85f.

[0162] like Figure 11 , Figure 15As shown, the connecting cylinder 107 protrudes from the circumferential central portion of the top wall 111 of the sealing member 100 toward the surface side. Specifically, a surface communication port 111a is formed in the top wall 111 at a position coinciding with the third inlet 41e when viewed from above. The connecting cylinder 107 is formed such that it surrounds the opening edge of the surface communication port 111a. The inner diameter of the connecting cylinder 107 is larger than the inner diameter of the third inlet 41e. The outer diameter of the connecting cylinder 107 is smaller than the inner diameter of the sealing receiving portion 41f. The surface-side end of the connecting cylinder 107 is received within the sealing receiving portion 41f. That is, the connecting cylinder 107 surrounds the periphery of the third inlet 41e. Furthermore, an O-ring 112 is located between the outer peripheral surface of the connecting cylinder 107 and the inward surface of the sealing receiving portion 41f.

[0163] exist Figure 11 In the inner space (sealed space S2) of the sealing member 100, the third through hole 85d opens through the space forming portion 105. In the inner space (sealed space S2) of the sealing member 100, the third inlet 41e opens through the connecting cylinder 107. In addition, the back end face of the peripheral wall 110 of the sealing member 100 is in close contact with the surface of the rotor 85, and the outer peripheral surface of the connecting cylinder 107 is in close contact with the inner peripheral surface of the sealing receiving portion 41f via the O-ring 112. Thus, each sealing mechanism 23 always allows the corresponding inlets 41c to 41e and through holes 85b to 85d to communicate with each other, and always cuts off the communication between adjacent sealed spaces S2.

[0164] like Figure 15 As shown, the force-applying member 101 is located between the sealing member 100 and the first housing 31, pressing the sealing member 100 toward the rotor 85. The force-applying member 101 is, for example, a so-called wave spring that causes a wavy, angled line to be wound in a spiral shape. Figure 11 As shown, the force-applying member 101 is positioned in the axial direction between the inner flange portion 111b, which extends inward from the opening edge of the surface communication port 111a, and the top surface of the sealing receiving portion 41f. That is, the force-applying member 101 is surrounded from the outside by the connecting cylinder 107 within the sealing receiving portion 41f, and surrounds the outward surface (third inlet 41e) of the sealing receiving portion 41f. Furthermore, in the illustrated example, the third inlet 41e is positioned in the axial direction at the same height as the inner flange portion 111b.

[0165] <Drive Unit 24> like Figure 5 As shown, the drive unit 24 causes the valve body 22 to rotate. The drive unit 24 includes an actuator 120 and an output shaft 121.

[0166] The actuator 120 is constructed by housing a motor, a reduction gear, a control board, etc. (not shown) within a housing. The actuator 120 overlaps with the first housing 31 on the surface side relative to the first housing 31. The actuator 120 is mounted on a mounting foot 48 provided on the first base 41.

[0167] Output shaft 121 protrudes from actuator 120 towards the rear side, coaxial with the central axis O1. The surface end of output shaft 121 is connected to a motor within the housing of actuator 120. The rear end of output shaft 121 enters the first housing 31 through a through hole 41b. The rear end of output shaft 121 is embedded in the connection hole 85a of valve body 22. Thus, the driving force (rotational force) generated by actuator 120 is transmitted to valve body 22 via output shaft 121.

[0168] like Figure 11 As shown, a bearing 123 and a shaft seal 124 are provided in the portion of the output shaft 121 located within the through hole 41b. The bearing 123 is positioned on the first side in the axial direction relative to the shaft seal 124. The first housing 31 supports the output shaft 121 via the bearing 123 in a manner that allows it to rotate around the central axis O1. The two ends of the output shaft 121 in the axial direction are supported by the actuator 120 and the valve body 22, respectively. The central portion of the output shaft 121 in the axial direction is supported by the bearing 123.

[0169] The shaft seal 124 is positioned on the back side of the bearing 123 between the outer circumferential surface of the output shaft 121 and the inner circumferential surface of the through hole 41b.

[0170] [Method for controlling the operation of valve 5] Next, the operation method of the control valve 5 described above will be explained. In the following description, the flow of coolant within the control valve 5 under the various flow modes described above (independent dual-flow mode, drive source priority mode, battery priority mode, and combined mode). Figures 17 to 24 This is an operational diagram illustrating the flow of coolant in each of the various flow patterns for cooling system 1. Figures 17 to 24 In, respectively, Figure 17 , Figure 18 Showing the independent mode of both parties, Figure 19 , Figure 20 This indicates the drive source priority cooling mode. Figure 21 , Figure 22 Indicates the battery priority cooling mode. Figure 23 , Figure 24 The composite mode is shown.

[0171] <Independent Model for Both Parties> like Figure 1 , Figure 17 , Figure 18As shown in the dual independent mode, in order to allow the coolant to circulate separately with respect to the battery flow path 2 and the drive flow path 3, the valve body 22 is set to... Figure 18 The position shown in (2). Therefore, through... Figure 18 (1) As shown, the coolant flowing into the sealed space S2 corresponding to the first inlet 41c from the first inlet port 43 is... Figure 18 (2) After the first through hole 85b shown, Figure 18 (3) The coolant flows into the 7th inflow circuit 71g. After flowing into the 3rd outflow circuit 72c, the coolant flowing into the 7th inflow circuit 71g passes through... Figure 18 (4) The fifth connection port 61e and the first outlet port 51c, as shown, reach the first outlet port 53. Thereafter, coolant is supplied to the battery flow path 2 through the first outlet port 53. Figure 1 , Figure 17 As shown, the coolant supplied to battery flow path 2 is pumped downstream by the first pump 6. The coolant flowing in battery flow path 2 exchanges heat with each of the cooling device 7, heating device 8, and battery 9. Thus, battery 9 is maintained within its optimal temperature range.

[0172] pass Figure 18 (1) As shown, the coolant flowing into the sealed space S2 corresponding to the second inlet 41d through the second inlet port 44 is coolant that flows into the sealed space S2. Figure 18 (2) After the second through hole 85c shown, Figure 18 (3) The coolant flows into the first inflow circuit 71a. After flowing into the first outflow circuit 72a, the coolant flowing into the first inflow circuit 71a passes through... Figure 18 (4) The first connection port 61a and the second outlet port 51d, as shown, reach the second outlet port 54. Thereafter, coolant is supplied to the drive flow path 3 through the second outlet port 54. Figure 1 , Figure 17 As shown, the coolant supplied to the drive flow path 3 is pumped downstream by the second pump 10. The coolant flowing in the drive flow path 3 exchanges heat with the drive module 11 as it passes through it. As a result, the drive module 11 is maintained within its optimal temperature range.

[0173] In addition, in the independent mode, the control valve 5 is connected to the radiator flow path 4 through the third through hole 85d, the fourth inflow circuit 71d, the fourth outflow circuit 72d, the third connection port 61c, the third outlet 51e, and the third outflow port 55.

[0174] <Driver Priority Cooling Mode> like Figure 2 , Figure 19 , Figure 20As shown in the drive source priority cooling mode, in order to make the drive flow path 3 and the radiator flow path 4 a closed loop, the valve body 22 is set to... Figure 20 (2) The position is shown. Therefore, regarding the coolant flowing into the first outlet port 53, similarly to the above-mentioned independent mode, after passing through the first through hole 85b, the seventh inflow circuit 71g, the third outlet circuit 72c and the fifth connection port 61e, the coolant is supplied to the battery flow path 2 through the first outlet port 53.

[0175] On the other hand, the coolant flowing into the second inlet port 44, after passing through the second through hole 85c, Figure 20 (3) The coolant flows into the second inflow circuit 71b. After flowing into the second outflow circuit 72b, the coolant flowing into the second inflow circuit 71b passes through... Figure 20 (4) The second connection port 61b and the third outlet port 51e, as shown, reach the third outlet port 55. Thereafter, coolant is supplied to the radiator flow path 4 through the third outlet port 55. (See diagram 4 for details.) Figure 2 , Figure 19 As shown, the coolant supplied to the radiator flow path 4, after heat exchange by the radiator 15, flows into the third inlet port 45. The coolant flowing into the third inlet port 45... Figure 20 (3) The coolant flows into the fifth inflow circuit 71e. After flowing into the fifth outflow circuit 72e, the coolant flowing into the fifth inflow circuit 71e passes through... Figure 20 (4) The fourth connection port 61d and the second outlet port 51d shown reach the second outlet port 54. Thereafter, coolant is supplied to the drive flow path 3 through the second outlet port 54. Thus, the relatively low temperature coolant that has been cooled by the radiator 15 is supplied to the drive flow path 3.

[0176] <Battery Priority Cooling Mode> like Figure 3 , Figure 21 , Figure 22 As shown in the battery priority cooling mode, in order to make the battery flow path 2 and the radiator flow path 4 a closed loop, the valve body 22 is set to... Figure 22 (2) shows the position. Therefore, the coolant flowing into the first inlet port 43, after passing through the first through hole 85b, at... Figure 22 (3) The coolant flows into the 6th inflow circuit 71f. After flowing into the 4th outflow circuit 72d, the coolant flowing into the 6th inflow circuit 71f passes through... Figure 22 (4) The third connection port 61c and the third outlet port 51e, as shown, reach the third outlet port 55. Thereafter, coolant is supplied to the radiator flow path 4 through the third outlet port 55. For example... Figure 3 , Figure 21As shown, the coolant supplied to the radiator flow path 4, after heat exchange by the radiator 15, flows into the third inlet port 45. The coolant flowing into the third inlet port 45... Figure 22 (3) The coolant flows into the third inflow circuit 71c. After flowing into the third outflow circuit 72c, the coolant flowing into the third inflow circuit 71c passes through... Figure 22 (4) The fifth connection port 61e and the first outlet port 51c shown reach the first outlet port 53. Thereafter, coolant is supplied to the battery flow path 2 through the first outlet port 53. Thus, relatively low-temperature coolant that has been cooled by the radiator 15 is supplied to the battery flow path 2.

[0177] On the other hand, regarding the coolant flowing into the second inlet port 44, similarly to the above-mentioned independent mode, after passing through the second through hole 85c, the first inlet circuit 71a, the first outlet circuit 72a, the first connection port 61a, and the second outlet port 51d, the coolant is supplied to the drive flow path 3 through the second outlet port 54.

[0178] <Composite Mode> like Figure 4 , Figure 23 , Figure 24 As shown in the composite mode, in order to form a closed loop integrating the battery flow path 2 and the drive flow path 3, the valve body 22 is set at... Figure 24 (2) shows the position. Therefore, the coolant flowing into the first inlet port 43, after passing through the first through hole 85b, at... Figure 24 (3) The coolant flows into the fifth inflow circuit 71e. After flowing into the fifth outflow circuit 72e, the coolant flowing into the fifth inflow circuit 71e passes through... Figure 24 (4) The fourth connection port 61d and the second outlet port 51d shown reach the second outlet port 54. Thereafter, coolant is supplied to the drive flow path 3 through the second outlet port 54. The coolant supplied to the drive flow path 3, after heat exchange by the drive module 11, flows into the second inlet port 44. The coolant flowing into the second inlet port 44... Figure 24 (3) The coolant flows into the 7th inflow circuit 71g. After flowing into the 3rd outflow circuit 72c, the coolant flowing into the 7th inflow circuit 71g passes through... Figure 24 (4) The fifth connection port 61e and the first outlet port 51c shown reach the first outlet port 53. Thereafter, coolant is supplied to the battery flow path 2 through the first outlet port 53. Thus, coolant is supplied to the battery flow path 2 through the drive flow path 3.

[0179] In addition, in the composite mode, the control valve 5 is connected to the radiator flow path 4 through the third through hole 85d, the second inflow circuit 71b, the second outflow circuit 72b, the second connection port 61b, the third outlet 51e, and the third outflow port 55.

[0180] Thus, in this embodiment, the control valve 5, corresponding to each flow mode, stops at one of four (a total of 12) stop positions for each of the inlets 41c to 41e via orifices 85b to 85d. In this state, the orifices 85b to 85d, and the selected positions of the orifices 85b to 85d, are connected to any of the inlet openings 71a to 71g, thereby allowing the coolant flowing into the first housing 31 through the three inlets 41c to 41e to flow into the inlet circuits 71a to 71g that are connected to the orifices 85b to 85d. The coolant flowing into the inlet circuits 71a to 71g, after reaching the outlets 51c to 51e via the corresponding outlet circuits 72a to 72e and the connection ports 61a to 61e, is distributed to the flow paths 2 to 4 via the outlet ports 53 to 55. That is, in this embodiment, the control valve 5 is configured such that the coolant flowing in from the three inlets 41c to 41e is selected from four (a total of 12) connection types for each of the inlets 41c to 41e and then converges again to the three outlets 51c to 51e.

[0181] As described above, the control valve 5 of this embodiment includes: a first housing 31 having a plurality of inlets (first openings) 41c to 41e; a second housing 32 disposed opposite to the first housing 31 in an axial direction (first direction) and having outlets (second openings) 51c to 51e; a plate-shaped valve body 22 that selectively connects the plurality of inlets 41c to 41e and outlets 51c to 51e through through holes 85b to 85d; and a plurality of sealing members 100 provided within the first housing 31 for each of the plurality of inlets 41c to 41e. In the sealing member 100, a surface communication port (first communication port) 111a is formed, which communicates with the inlets 41c to 41e; and a back communication port (second communication port) 105a is formed, which communicates with the surface communication port 111a and opens toward the valve body 22. Multiple sealing components 100 are housed in the first housing 31 in a state in which the opening edge of the back connection port 105a is in slidable contact with the valve body 22 and in a manner in which they are displaced relative to each other in the axial direction.

[0182] According to this configuration, since each inlet 41c to 41 is sealed with a sealing member 100 between itself and the valve body 22 (through holes 85b to 85d), the mixing of coolant flowing into the first housing 31 through each inlet 41c to 41e can be suppressed within the first housing 31. Therefore, the temperature or flow rate of the coolant can be easily managed, and coolant can flow in and out under desired conditions between each flow path 2 to 4 connected to the control valve 5.

[0183] Furthermore, in this embodiment, each sealing member 100 is arranged in a manner that allows for mutual displacement, thus each sealing member 100 displaces according to the pressure of the coolant within it. Therefore, compared to a configuration where each sealing member 100 is integrally connected (e.g., a configuration with a separator for each of the inlets 41c to 41e), it is possible to properly seal the inlets 41c to 41e and the valve body 22 for each of the sealing members 100. In addition, each sealing member 100 can be assembled individually, thus improving the assemblability of each sealing member 100 relative to the first housing 31 compared to a configuration where each sealing member 100 is integrally connected.

[0184] In this embodiment, the control valve 5 has a force-applying member 101 between the first housing 31 and the sealing member 100, which applies force to the sealing member 100 toward the valve body 22. Force-applying members 101 are provided for each of the plurality of sealing members 100.

[0185] Based on this configuration, the sealing performance between the opening edge of the back connection port 105a in the sealing member 100 and the valve body 22 can be improved. This, in turn, improves the sealing performance between the inlets 41c to 41e and the valve body 22.

[0186] In this embodiment, the control valve 5 is configured such that a plurality of sealing components 100 are formed in an arc shape extending in the circumferential direction and abut against each other when viewed from above.

[0187] According to this configuration, by having each sealing member 100 abut against each other, the relative movement of each sealing member 100 in the circumferential direction is restricted. Therefore, even when the sealing member 100 is provided individually, the shaking of the sealing member 100 can be suppressed.

[0188] In this embodiment, the control valve 5 has a sealing receiving portion 41f that opens to the rear side in the portion of the first housing 31 surrounding the inlets 41c to 41e. A plurality of sealing members 100 have connecting sleeves 107 that communicate with the surface communication port 111a and are inserted into the sealing receiving portion 41f.

[0189] Based on this configuration, the assemblability of each sealing member 100 to the first housing 31 can be improved. Furthermore, by having the outer peripheral surface of the connecting sleeve 107 abut against the inner peripheral surface of the sealing receiving portion 41f, the circumferential movement of each sealing member 100 relative to the first housing 31 can be restricted. Thus, wobbling of each sealing member 100 can be suppressed.

[0190] In this embodiment, the control valve 5 has a gasket 112 located between the inner circumferential surface of the sealing receiving portion 41f and the outer circumferential surface of the connecting cylinder 107.

[0191] Based on this configuration, the sealing performance between the connecting cylinder 107 and the sealing receiving portion 41f can be improved. This prevents coolant from leaking from the gap between the connecting cylinder 107 and the sealing receiving portion 41f to the outside of the sealing member 100.

[0192] (Modified Example) In the above embodiments, the configuration in which the control valve 5 and the water pumps 6 and 10 are separately installed in the cooling system 1 has been described, but the configuration is not limited to this.

[0193] For example, such as Figure 25 As shown, an integrated unit 200 combining control valve 5 and water pumps 6 and 10 can also be used.

[0194] In the integrated unit 200, control valve 5 and water pumps 6 and 10 are arranged side by side on a plane intersecting the axial direction.

[0195] In the integrated unit 200 of this embodiment, a first pump support 201 and a second pump support 202 extending in a direction intersecting the axial direction are integrally formed on the second housing 32 of the control valve 5. The first pump support 201 and the second pump support 202 are arranged side by side on a first side of a first radial direction L1 relative to the second housing 32 along a second radial direction L2. A first water pump 6 is assembled on the first pump support 201. The first water pump 6 is connected to the flow path of the distribution member 33 and the first outlet port 53, and delivers coolant toward the first outlet port 53. A second water pump 10 is assembled on the second pump support 202. The second water pump 10 is connected to the flow path of the distribution member 33 and the second outlet port 54, and delivers coolant toward the second outlet port 54.

[0196] In this way, by integrating the control valve 5 with the water pumps 6 and 10, the cooling system 1 can be further miniaturized.

[0197] (Other variations) The preferred embodiments of this disclosure have been described above, but this disclosure is not limited to these embodiments. Additions, omissions, substitutions, and other modifications can be made to the configuration without departing from the spirit of this disclosure. This disclosure is not limited to the foregoing description, but only to the appended claims.

[0198] For example, in the above embodiment, the configuration of the control valve 5 being mounted on the vehicle's cooling system 1 has been described, but it is not limited to this configuration and may also be mounted on other systems.

[0199] In the above embodiment, a configuration with three inlets 41c to 41e or three outlets 51c to 51e (a so-called 3IN-3OUT configuration) has been described, but the configuration is not limited to this. The number of inlets 41c to 41e or outlets 51c to 51e can also be different. Furthermore, as long as the control valve 5 has multiple first openings (inlets), the second opening can also be single.

[0200] Furthermore, the number of inflow circuits 71a to 71g or outflow circuits 72a to 72e, and the number of through holes 85b to 85d can also be appropriately changed. For example, it can also be configured such that when the number of outlets is greater than the number of inflow inlets, the coolant flow circuit is diffused during the coolant's passage through the distribution components.

[0201] In the above embodiments, a configuration in which the number of inflow loops (first loop) is greater than the number of outflow loops has been described, but this configuration is not limited to. A configuration in which the number of inflow loops is less than the number of outflow loops (more outflow loops) may also be described.

[0202] In the above embodiments, a configuration with the first opening as the inlet 41c to 41e and the second opening as the outlet 51c to 51e has been described, but the configuration is not limited to this. Alternatively, the first opening may be the outlet and the second opening the inlet. In this case, the coolant flowing in from the inlet passes through the distribution member 33 or the valve body 22 in the order of the second circuit, the first circuit, and the through hole.

[0203] In the above embodiment, the configuration of the valve body 22 having a circular plate-shaped rotor 85 has been described, but the configuration is not limited to this. The rotor 85 is not limited to a circular plate shape, but may also be a rectangular plate shape, etc.

[0204] In the above embodiment, the sealing member 100 has been described as being formed in a box shape with an opening to the rear side, but it is not limited to this configuration. The sealing member 100 can be appropriately modified to be cylindrical or the like.

[0205] In the above embodiments, a configuration in which the sealing components are in contact with each other in the circumferential direction has been described, but the configuration is not limited to this. Adjacent sealing components may also be separated from each other.

[0206] In the above embodiment, the configuration for switching the flow pattern of coolant between the battery flow path 2, the drive flow path 3, and the radiator flow path 4 has been described, but the configuration is not limited to this. The flow path connected to the control valve 5 can be appropriately modified.

[0207] In the above embodiment, the configuration in which the flow pattern between each flow path 2 to 4 is switched by the coolant through the distribution member 33 has been described, but the configuration is not limited to this. The control valve 5 may also be configured to switch the connection and disconnection between the corresponding first opening and second opening by rotating the valve body. That is, the distribution member 33 is not necessary as long as the first housing 31 and the second housing 32 are separated by the valve body 22.

[0208] In the above embodiments, the configuration in which each port extends in the radial direction has been described, but the configuration is not limited to this. At least one of the ports may also extend, for example, in the axial direction or in a direction intersecting the axial direction.

[0209] In the above embodiments, a configuration in which the first housing 31 and the distribution plate 60 are assembled from the rear side and the second housing 32 and the distribution plate 60 are assembled from the front side has been described, but the configuration is not limited to this. The first housing 31 and the second housing 32 may also be integrally assembled onto the distribution plate 60. Alternatively, the first housing 31 and the distribution plate 60 may be assembled from the front side and the second housing 32 and the distribution plate 60 may be assembled from the rear side.

[0210] In addition, at least one of the first housing 31 and the distribution plate 60, and the second housing 32 and the distribution plate 60, can also be fixed by means other than fastening (e.g., welding).

[0211] Furthermore, without departing from the spirit of this disclosure, the constituent elements in the above embodiments can be appropriately replaced with well-known constituent elements, and the above variations can also be appropriately combined.

[0212] Explanation of reference numerals in the attached figures 5: Control valves 22: Valve body 31: First shell 32: Second shell 43c: First flow inlet (first opening) 43d: Second flow inlet (first opening) 43e: Third Stream Inlet (First Opening) 53c: First outlet (second opening) 53d: Second outlet (second opening) 53e: Third outlet (second opening) 41f: Sealed Receiving Section 85b: First through hole (through hole) 85c: Second through hole (through hole) 85d: 3rd through hole (through hole) 100: Sealing component 101: Force-applying component 107: Connecting cylinder 112: O-ring.

Claims

1. A control valve, comprising: The first housing has a plurality of first openings for fluid to pass through; The second housing is disposed opposite to the first housing along a first direction and has a second opening for fluid to pass through; A plate-shaped valve body having a through-hole, and through the through-hole selectively communicating a plurality of the first openings and the second openings by rotation between the first housing and the second housing about an axis along the first direction; and Multiple sealing components are provided within the first housing for each of the multiple first openings. In the plurality of sealing components, a first communication port and a second communication port are formed, the first communication port communicating with the first opening, and the second communication port communicating with the first communication port and opening toward the valve body. The plurality of sealing components are housed within the first housing in a manner in which the opening edge of the second communication port is in slidable contact with the valve body and in a manner in which they are displaced relative to each other in the first direction.

2. The control valve according to claim 1, wherein, Between the first housing and the sealing member, a force-applying member is provided for each of the plurality of sealing members to apply force to the sealing member toward the valve body.

3. The control valve according to claim 1 or claim 2, wherein, The plurality of sealing components are formed in an arc shape extending in a circumferential direction around the axis when viewed from the first direction and abut against each other.

4. The control valve according to claim 1 or claim 2, wherein, In the first housing, a sealing receiving portion is formed in the portion surrounding the first opening, facing the valve body opening in the first direction. The plurality of sealing components have connecting cylinders that communicate with the first communication port and are inserted into the sealing receptacle.

5. The control valve according to claim 4, wherein, The O-ring is located between the inner circumferential surface of the sealing accommodating part and the outer circumferential surface of the connecting cylinder.

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