CN219570944U - Multi-way valve unit, thermal management system and vehicle - Google Patents

Abstract

The utility model provides a multi-way valve unit, a thermal management system and a vehicle, and relates to the technical field of vehicles. The side wall of the valve cavity of the unit is provided with a plurality of interfaces, and the two interfaces form an interface group; the two interfaces of the same group are used for being connected with two ends of the same external flow path respectively, and the interfaces of different groups are used for being connected with different flow paths; the valve core is connected with the valve seat, the valve core is used for moving to different working positions relative to the valve seat, when the valve core is positioned in a first working position, the interfaces of the same group are communicated, the interfaces of different groups are not communicated with each other, when the valve core is positioned in a second working position, one interface of the first interface group is communicated with one interface of the second interface group, the other interface of the second interface group is communicated with one interface of the third interface group, and the other interface of the third interface group is communicated with the other interface of the first interface group; the valve core is provided with plugging areas corresponding to different interfaces, and communication between the interfaces is realized through communication between the corresponding plugging areas.

Description

Multi-way valve unit, thermal management system and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a multi-way valve unit, a thermal management system and a vehicle.

Background

Currently, with the development of modern technologies, more and more flow paths of a flow path system are required to be provided with more valves to control on/off of the flow paths. For example, in a thermal management system of an automobile, the thermal management system generally includes a battery cooling flow path, a PTC (Positive Temperature Coefficient ) heater cooling flow path, and a motor cooling flow path, wherein the battery cooling flow path is mainly used for cooling a battery, the PTC heater cooling flow path is mainly used for heating heat of the PTC heater to a cabin through a warm air core, and the motor cooling flow path is mainly used for cooling a motor. In some cases, when the communication between different flow paths needs to be realized, for example, the soaking requirement is realized, more valves, for example, a three-way valve and a four-way valve, need to be equipped to realize the flow path switching, and the three-way valve has the advantages of complex structure, large occupied space and lower reliability.

Disclosure of Invention

The utility model aims to solve the problems of simplifying the reversing structure for multiple flow paths and considering the reliability to a certain extent.

In order to solve at least one aspect of the above problems at least to some extent, in a first aspect, the present utility model provides a multi-way valve unit, including a valve seat and a valve core, wherein a valve cavity is disposed in the valve seat, a plurality of ports are disposed on a sidewall of the valve cavity, and two ports form a port group; the two interfaces of the same group are used for being connected with two ends of the same external flow path respectively, and the interfaces of different groups are used for being connected with different flow paths; the interface group comprises a first interface group, a second interface group and a third interface group;

The valve core is connected with the valve seat, the valve core is used for moving to different working positions relative to the valve seat, when the valve core is positioned in a first working position, the interfaces of the same group are communicated, the interfaces of different groups are not communicated with each other, when the valve core is positioned in a second working position, one interface of the first interface group is communicated with one interface of the second interface group, the other interface of the second interface group is communicated with one interface of the third interface group, and the other interface of the third interface group is communicated with the other interface of the first interface group;

the valve core is provided with plugging areas corresponding to different interfaces, and the communication between the interfaces is realized through the communication between the corresponding plugging areas.

Optionally, a plurality of the interfaces are distributed along a first direction, and a plurality of the interface groups are distributed along a second direction;

the multi-way valve unit further comprises a first communication structure for communicating two interfaces adjacent in the first direction, a second communication structure for communicating two interfaces adjacent in the second direction, and a third communication structure for communicating two calibration ports, wherein the two calibration ports are the interfaces which are not adjacent in the first direction or the second direction;

The first communication structure and the second communication structure are both arranged on the valve core, and two ends of the first communication structure penetrate through the side wall of the valve core in two plugging areas adjacent to each other along the first direction; two ends of the second communication structure penetrate through the side wall of the valve core in two adjacent plugging areas along the second direction respectively;

the third communication structure is arranged on the valve core, two ends of the third communication structure penetrate through the side wall of the valve core in two calibration plugging areas corresponding to the two calibration ports respectively, and the outer profile of the cross section of the third communication structure is a closed graph;

or, the third communication structure comprises a transfer flow path, the transfer flow path is formed on the valve seat or at least partially formed outside the valve seat, and a plurality of interfaces comprise transfer interfaces; when the transfer port is arranged adjacent to the first one of the two calibration ports, the transfer port is communicated with the first one of the two calibration ports through the first communication structure or the second communication structure, and the transfer port is communicated with the second one of the two calibration ports through the transfer flow path; when the switching port and the two calibration ports are not adjacently arranged, the two calibration ports are respectively communicated with the two switching ports through two switching flow paths, and the two switching ports are adjacently arranged and are communicated through the first communication structure or the second communication structure.

Optionally, the first interface group, the second interface group and the third interface group are sequentially distributed along the first direction, the interfaces of the same group are distributed along the second direction, the valve core is rotatably installed in the valve cavity, the first direction is consistent with the axial direction of the valve core, and the second direction is consistent with the circumferential direction of the valve core;

and/or, the first communication structure and the second communication structure are both provided as communication grooves;

and/or the valve core is provided with a weight reduction groove in each plugging area.

Optionally, when the valve core is located at the calibration working position, two calibration groups exist in the plurality of interface groups, the interfaces of different calibration groups are respectively communicated, and the interfaces of the same calibration group are not communicated with each other.

Optionally, when the valve core is located at the third working position, one of the interfaces of the first interface group is communicated with one of the interfaces of the third interface group, and the other of the interfaces of the first interface group is communicated with the other of the interfaces of the third interface group; the interfaces of the second interface group are communicated;

when the valve core is positioned at a fourth working position, one interface of the second interface group is communicated with one interface of the third interface group, and the other interface of the second interface group is communicated with the other interface of the third interface group; the interfaces of the first interface group are communicated;

When the valve core is positioned at a fifth working position, one interface of the first interface group is communicated with one interface of the second interface group, and the other interface of the first interface group is communicated with the other interface of the second interface group; and the interfaces of the third interface group are communicated.

Optionally, the valve seat comprises a seat body and a flow path plate structure, the seat body is provided with the valve cavity and the interface, and the seat body is connected with the flow path plate structure;

at least one of the flow paths comprises two end sections and an intermediate section positioned between the end sections, the two end sections are both formed in the flow path plate structure, one end of each end section is communicated with the corresponding interface of the interface group, and the other end of each end section is provided with an external interface for connecting with the intermediate section;

at least one of the flow paths is provided with a pump, the pump is connected with the flow path plate structure, one end section of the flow path passes through the pump, and/or at least one of the flow paths is provided with a water tank interface, and the water tank interface is used for being connected with a water tank.

Optionally, the flow path plate structure includes a support plate body and a multi-pipe structure connected to the support plate body, the seat body connected to the support plate body, the multi-pipe structure for at least partially forming the end section;

and/or when the pump and the water tank interface are arranged on the flow path, the water tank interface and the pump are positioned on different sides of the flow path plate structure along the thickness direction.

In a second aspect, the present utility model provides a thermal management system comprising at least three flow paths and the multi-way valve unit according to the first aspect, wherein different flow paths are respectively connected with interfaces of different groups of the multi-way valve unit, and two ends of the same flow path are respectively connected with two interfaces of the same group of the multi-way valve unit.

Optionally, the flow paths include a first flow path, a second flow path, and a third flow path; the first flow path includes a battery cooling flow path, the second flow path includes a PTC heater cooling flow path, and the third flow path includes a motor cooling flow path;

and a radiator is arranged on the motor cooling flow path, or a regulating valve unit and the radiator are arranged on the motor cooling flow path, two ends of the radiator are connected with bypass branches in parallel, and the flow of the bypass branches is regulated by the regulating valve unit.

In a third aspect, the present utility model provides a vehicle comprising a thermal management system as described in the second aspect above.

In the multiway valve unit, the thermal management system, and the vehicle of the present utility model, in relation to the related art, a plurality of ports are provided in a side wall of the valve chamber, and a first port group, a second port group, and a third port group for connecting with different flow paths are formed in the plurality of ports, for example, the first port group, the second port group, and the third port group are respectively for connecting with the first flow path, the second flow path, and the third flow path, which may include a battery cooling flow path, a PTC heater cooling flow path, and a motor cooling flow path, respectively. The valve core can move to different working positions relative to the valve seat, or the valve core is provided with a plurality of working positions, when in any working position, the valve core is provided with a plurality of plugging areas respectively corresponding to a plurality of interfaces, the communication between the interfaces is realized through the communication between the corresponding plugging areas, the separation between the interfaces is realized through the separation between the corresponding plugging areas, and the on-off combination between the interfaces is realized through the switching of the valve core at the different working positions. When the valve core is positioned at the first working position, the interfaces of the same group are communicated, the interfaces of different groups are not communicated with each other, specifically, the communication between the interfaces of the first interface group can enable the first flow path to form flow path circulation, the communication between the interfaces of the second interface group can enable the second flow path to form flow path circulation, and the communication between the interfaces of the third interface group can enable the third flow path to form flow path circulation, that is, the first flow path, the second flow path and the third flow path respectively and independently form flow path circulation without mutual interference, namely, the battery cooling flow path, the PTC heater cooling flow path and the motor cooling flow path respectively and independently form flow path circulation without mutual interference; when the valve core is positioned at the second working position, one interface of the first interface group is communicated with one interface of the second interface group, so that the first end of the first flow path is communicated with the first end of the second flow path; the other interface of the second interface group is communicated with one interface of the third interface group, so that the second end of the second flow path is communicated with the first end of the third flow path, the other interface of the third interface group is communicated with the other interface of the first interface group, and the second end of the third flow path is communicated with the second end of the first flow path, that is, the first flow path, the third flow path and the second flow path are sequentially communicated in series and form a flow path circulation, that is, the battery cooling flow path, the PTC heater cooling flow path and the motor cooling flow path are sequentially communicated in series and form a flow path circulation. The utility model can realize the communication mode combination among three flow paths through the multi-way valve unit, for example, at least three flow paths can be switched between a mode I which is not communicated with each other and a mode II which is communicated with the three flow paths in series in sequence, and the communication mode is not needed to be realized and switched through a plurality of reversing valves, so that the use quantity of the reversing valves can be reduced to a certain extent, the structure is simplified, the quantity of external pipelines used for connection can be reduced to a certain extent, the number of joints is reduced, the space utilization rate is high, and the reliability of the thermal management system with the multi-way valve unit can be improved to a certain extent.

Drawings

FIG. 1 is a schematic diagram of a multi-way valve unit according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a structure in which a sidewall of a chamber of a seat body of a valve seat is provided with a plurality of orifices in an embodiment of the present utility model;

FIG. 3 is another schematic view of the seat body shown in FIG. 2;

FIG. 4 is a schematic diagram of a structure of a flow path plate according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram illustrating an internal structure of a second switching flow path on a flow path plate structure according to an embodiment of the present utility model;

FIG. 6 is a schematic view of an internal flow path of a flow path plate structure according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a multi-pipeline structure of a flow path plate structure in an embodiment of the utility model;

FIG. 8 is another schematic diagram of the multi-pipe structure of FIG. 7;

FIG. 9 is a schematic diagram of a multi-way valve unit for a thermal management system according to an embodiment of the present utility model;

FIG. 10 is a schematic illustration of communication of the thermal management system with the valve spool in the first operational position according to an embodiment of the present utility model;

FIG. 11 is a schematic view of a valve element in a first working position according to an embodiment of the present utility model;

FIG. 12 is a schematic illustration of communication of the thermal management system with the valve spool in the second operational position according to an embodiment of the present utility model;

FIG. 13 is a schematic view of a valve element in a second working position according to an embodiment of the present utility model;

FIG. 14 is a schematic diagram illustrating communication of the thermal management system when the valve spool is in the third operating position according to an embodiment of the present utility model;

FIG. 15 is a schematic view of a valve element in a third working position according to an embodiment of the present utility model;

FIG. 16 is a schematic illustration of the communication of the thermal management system with the valve spool in a fourth operating position according to an embodiment of the present utility model;

FIG. 17 is a schematic illustration of the communication of the thermal management system with the valve spool in a fourth operating position according to an embodiment of the present utility model;

FIG. 18 is a schematic diagram illustrating communication of the thermal management system when the valve spool is in the fifth operating position according to an embodiment of the present utility model.

Reference numerals illustrate:

an A-multi-way valve unit; 1-valve seat; 11-a seat body; 110-interface; 120-valve cavity; 111-a first interface group; 112-a second interface group; 113-a third interface group; 114-switching interfaces; 1101-interface one; 1102-interface two; 1103-interface three; 1104-interface four; 1105-interface five; 1106-interface six; 1107—interface seven; 1108-interface eight; 12-a flow path plate structure; 121-a support plate body; 122-multi-pipeline structure; 2-valve core; 21-occlusion region; 201-plugging area I; 202-blocking area II; 203-plugging area four; 204-blocking area eight; 3-flow path; 31-a first flow path; 32-a second flow path; 33-a third flow path; 310-battery cooling flow path; 320-PTC heater cooling flow path; 330-motor cooling flow path; 301-end section; 3011-a first end section, 3012-a second end section; 302-intermediate road segment; 303-external interface; 3031-a first external interface; 3032-a second external interface; 3033-a third external interface; 3034-fourth external interface; 3035-a fifth external interface; 3036-sixth external interface; 304-a pump; 3041-pump one; 3042-pump two; 3043-pump three; 305-tank interface; 307-water tank; 311-PTC heater; 312-warm air core; 321-battery; 322-battery cooler; 331-a heat sink; 332-a regulator valve unit; 333-an electric motor; 334-controller; 335-a bypass branch; 410-a first communication structure; 420-a second communication structure; 430-a third communication structure; 431-switching the flow path; 4311—a first diverting flow path; 4312-a second transfer flow path; 401-a first communication groove; 402-a second communication groove; 403-a third communication groove; 404-a fourth communication groove; 405-a fifth communication groove; 406-a sixth communication groove; 407-seventh communication groove; 408-eighth communication grooves; 5-drive.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the description of the present specification, descriptions of the terms "embodiment," "one embodiment," "some embodiments," "illustratively," and "one embodiment" and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or embodiment is included in at least one embodiment or implementation of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same examples or implementations. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or implementations.

The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. As such, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

The Z axis in the drawing represents vertical, i.e., up and down, and the positive direction of the Z axis (i.e., the arrow pointing to the Z axis) represents up, and the negative direction of the Z axis represents down; the X-axis in the drawing indicates the horizontal direction and is designated as the left-right position, and the positive direction of the X-axis (i.e., the arrow of the X-axis points) indicates the right side, and the negative direction of the X-axis indicates the left side; the Y-axis in the drawing indicates the front-back position, and the positive direction of the Y-axis (i.e., the arrow of the Y-axis is directed) indicates the front side, and the negative direction of the Y-axis indicates the rear side; it should also be noted that the foregoing Z-axis, Y-axis, and X-axis are meant to be illustrative only and not indicative or implying that the apparatus or component in question must be oriented, configured or operated in a particular orientation, and therefore should not be construed as limiting the utility model.

As shown in fig. 1, 2, 3, 9, 10 and 12, an embodiment of the present utility model provides a multi-way valve unit a, which includes a valve seat 1 and a valve core 2, a valve cavity 120 is disposed in the valve seat 1, a plurality of ports 110 are disposed on a side wall of the valve cavity 120, and two ports 110 form a port group (each port group is framed by two-dot chain lines in fig. 9); the two interfaces 110 of the same group are used for being respectively connected with two ends of the same external flow path 3, and the interfaces 110 of different groups are used for being connected with different flow paths 3; the interface groups include a first interface group 111, a second interface group 112, and a third interface group 113;

The valve core 2 is connected with the valve seat 1, the valve core 2 is used for moving to different working positions relative to the valve seat 1, when the valve core 2 is positioned at a first working position, the interfaces 110 of the same group are communicated, the interfaces 110 of different groups are not communicated with each other, when the valve core 2 is positioned at a second working position, one interface 110 of the first interface group 111 is communicated with one interface 110 of the second interface group 112, the other interface 110 of the second interface group 112 is communicated with one interface 110 of the third interface group 113, and the other interface 110 of the third interface group 113 is communicated with the other interface 110 of the first interface group 111;

the valve core 2 is provided with plugging areas 21 corresponding to different ports 110, and communication between the ports 110 is realized through communication between the corresponding plugging areas 21.

In particular, the multi-way valve unit a further comprises a driver 5 for driving the movement of the valve spool 2, the number of flow paths 3 being set to at least three, it being understood that the outer flow paths 3 may be understood that the flow paths 3 are at least partially located outside the valve seat 1, as will be exemplified later. In the present specification, the case where the multi-way valve unit a is used for the thermal management system of the vehicle is exemplified in which the flow path 3 includes the first flow path 31, the second flow path 32, and the third flow path 33, and the first flow path 31, the second flow path 32, and the third flow path 33 include the battery cooling flow path 310, the PTC heater cooling flow path 320, and the motor cooling flow path 330, respectively, but it is understood that the number of the flow paths 3 may be set to three or more without violating the design concept of the present utility model, and the multi-way valve unit a may be used in other cases.

As shown in fig. 9, 2 and 3, the two interfaces 110 of the first interface group 111 are the interface one 1101 and the interface five 1105, the two interfaces 110 of the second interface group 112 are the interface two 1102 and the interface six 1106, and the two interfaces 110 of the third interface group 113 are the interface three 1103 and the interface seven 1107.

The valve core 2 moves relative to the valve seat 1, so that the on-off combination between the interfaces 110 is adjusted. Referring to fig. 10, the on-off combination between the plurality of ports 110 is shown with the valve spool 2 in the first operating position. Referring to fig. 12, the on-off combination between the plurality of ports 110 is shown with the spool 2 in the second operating position.

As shown in fig. 10, when the valve element 2 is in the first working position, the first port 1101 and the fifth port 1105 of the first port group 111 are communicated, so that the first flow path 31 can form a flow path circulation through the first port group 111 of the multi-way valve unit a; interface two 1102 and interface six 1106 of the second set of interfaces 112 are in communication such that the second flow path 32 may form a flow path cycle through the second set of interfaces 112 of the multi-way valve unit a; interface three 1103 and interface seven 1107 of the third interface group 113 are in communication, so that the third flow path 33 can form a flow path cycle through the third interface group 113 of the multi-way valve unit a; the different sets of ports 110 are not in communication with each other, so that the first flow path 31, the second flow path 32, and the third flow path 33 are not in communication with each other. At this time, the first flow path 31, the second flow path 32, and the third flow path 33 each form a flow path cycle through the multi-way valve unit a, corresponding to the communication mode one. The battery cooling flow path 310, the PTC heater cooling flow path 320, and the motor cooling flow path 330 may be individually flow rate controlled.

As shown in fig. 12, when the valve core 2 is in the second working position, the first port 1101 of the first port group 111 is communicated with the second port 1102 of the second port group 112, so that the first end of the first flow path 31 is communicated with the first end of the second flow path 32 through the first port 1101 and the second port 1102; interface six 1106 of the second interface group 112 communicates with interface seven 1107 of the third interface group 113 such that the second end of the second flow path 32 communicates with the first end of the third flow path 33 via interface six 1106 and interface seven 1107; the third port group 113 has port three 1103 in communication with port five 1105 of the first port group 111 such that the second end of the third flow path 33 communicates with the second end of the first flow path 31 via the third port group 1103 and the port five 1105. At this time, the first flow path 31, the third flow path 33, and the second flow path 32 are sequentially connected in series and form a flow path cycle in the second mode corresponding to the second communication mode. For example, the battery cooling flow path 310, the PTC heater cooling flow path 320, and the motor cooling flow path 330 may be controlled uniformly, and for example, when starting under low temperature conditions, the temperature of the battery 321 and the motor 333 may be raised by the PTC heater 311.

In any working position, referring to fig. 11 and 13, the area of the valve core 2 for blocking each port 110 is marked by a dashed frame, and blocking areas 21 with the same number of ports 110 are provided in the dashed frame, for example, a blocking area one 201 and a blocking area two 202 (refer to fig. 15) are provided on the valve core 2 corresponding to a port one 1101 and a port two 1102 respectively, and so on. Taking the interface one 1101 as an example, when the plugging of the interface one 1101 is required to be achieved, the valve core 2 is in sealing connection with the interface one 1101 in a plugging area 21 (specifically, the plugging area one 201, indicated in fig. 15) corresponding to the interface one 1101, so as to achieve the plugging of the interface one 1101, the situation that weight reducing grooves are all arranged in any plugging area 21 is shown in the figure, at this time, the coverage area of a notch formed by the weight reducing grooves on the outer wall of the valve core 2 is smaller than that of the interface one 1101, and the coverage area of the plugging area 21 is larger than that of the interface one 1101. When communication between the first 1101 and the fifth 1105 interfaces is required, the two weight reduction grooves corresponding to the first 1101 and the fifth 1105 interfaces are communicated to form a second communication structure 420, for example, a first communication groove 401, described later. Of course, it is not limited thereto, and other related techniques may be employed. The communication between the plugging areas 21 is understood to be that communication ports such as the above-described notch are provided through and formed at the outer wall surfaces of the valve body 2 corresponding to the two plugging areas 21 so as to be communicable with the corresponding two ports 110.

In the multiway valve unit a of the present embodiment, a plurality of ports 110 are provided in the side wall of the valve chamber 120, and a first port group 111, a second port group 112, and a third port group 113 for connecting with different flow paths 3 are formed in the plurality of ports 110, for example, the first port group 111, the second port group 112, and the third port group 113 are respectively used for connecting with the first flow path 31, the second flow path 32, and the third flow path 33, wherein the first flow path 31, the second flow path 32, and the third flow path 33 may include a battery cooling flow path 310, a PTC heater cooling flow path 320, and a motor cooling flow path 330, respectively. The valve core 2 can move to different working positions relative to the valve seat 1, or the valve core 2 is provided with a plurality of working positions, when the valve core 2 is in any working position, the valve core 2 is provided with a plurality of blocking areas 21 respectively corresponding to a plurality of interfaces 110, the communication between the interfaces 110 is realized through the communication between the corresponding blocking areas 21, the separation between the interfaces 110 is realized through the separation between the corresponding blocking areas 21, and the switching of the on-off combination between the interfaces 110 is realized through the switching of the valve core 2 in different working positions. When the valve element 2 is in the first working position, the interfaces 110 of the same group are communicated, the interfaces 110 of different groups are not communicated with each other, specifically, the communication between the interfaces 110 of the first interface group 111 can enable the first flow path 31 to form a flow path circulation, the communication between the interfaces 110 of the second interface group 112 can enable the second flow path 32 to form a flow path circulation, and the communication between the interfaces 110 of the third interface group 113 can enable the third flow path 33 to form a flow path circulation, that is, the first flow path 31, the second flow path 32 and the third flow path 33 respectively and independently form a flow path circulation without mutual interference, that is, the battery cooling flow path 310, the PTC heater cooling flow path 320 and the motor cooling flow path 330 respectively and independently form a flow path circulation without mutual interference; when the valve core 2 is located at the second working position, one port 110 of the first port group 111 is communicated with one port 110 of the second port group 112, so that the first end of the first flow path 31 is communicated with the first end of the second flow path 32; the other port 110 of the second port group 112 communicates with one port 110 of the third port group 113, which may cause the second end of the second flow path 32 to communicate with the first end of the third flow path 33, and the other port 110 of the third port group 113 communicates with the other port 110 of the first port group 111, which may cause the second end of the third flow path 33 to communicate with the second end of the first flow path 31, that is, may cause the first flow path 31, the third flow path 33, and the second flow path 32 to communicate in series in order and form a flow path cycle, that is, the battery cooling flow path 310, the PTC heater cooling flow path 320, and the motor cooling flow path 330 to communicate in series in order and form a flow path cycle. In the utility model, the communication mode combination among the three flow paths 3 can be realized through the multi-way valve unit A, for example, at least the switching of the three flow paths 3 among the mode I which are not communicated with each other and the mode II which are sequentially communicated in series can be realized, the communication mode does not need to be realized and switched through a plurality of reversing valves, the use quantity of the reversing valves can be reduced to a certain extent, the structure is simplified, the quantity of external pipelines for connection can be reduced to a certain extent, the number of joints is reduced, the space utilization rate is high, and the reliability of the device can be improved to a certain extent.

It should be noted that, in the above embodiment, the number of interface groups is not limited to three, as long as three groups of the plurality of interface groups exist in the above channel combination.

Optionally, the plurality of working positions further includes a calibration working position other than the first working position and the second working position, when the working positions are calibrated, two calibration groups exist in the plurality of interface groups, the interfaces 110 of different calibration groups are respectively communicated, and the interfaces 110 of the same calibration group are not communicated with each other.

Specifically, the two calibration groups are a first calibration group and a second calibration group, one interface 110 of the first calibration group is communicated with one interface 110 of the second calibration group, and the other interface 110 of the first calibration group is communicated with the other interface 110 of the second calibration group, so that two flow paths 3 corresponding to the two calibration groups can be communicated in series and form a flow path circulation.

Here, it should be understood that the calibration group is not limited to being entirely selected from the first interface group 111, the second interface group 112, and the third interface group 113 described above, and the serial flow path 3 is not limited to being entirely selected from the first flow path 31, the second flow path 32, and the third flow path 33. Of course, the two calibration groups may be all selected from the first interface group 111, the second interface group 112 and the third interface group 113, and at this time, two interfaces 110 of one group except the two calibration groups in the first interface group 111, the second interface group 112 and the third interface group 113 may be set to be connected or disconnected.

Referring to fig. 14, when the valve element 2 is located at the third working position, the two calibration groups are the first interface group 111 and the third interface group 113, respectively, one interface 110 of the first interface group 111 is communicated with one interface 110 of the third interface group 113, and the other interface 110 of the first interface group 111 is communicated with the other interface 110 of the third interface group 113; the interfaces 110 of the second interface group 112 communicate with each other.

Illustratively, interface one 1101 of the first interface group 111 is communicated with interface seven 1107 of the third interface group 113, interface five 1105 of the first interface group 111 is communicated with interface three 1103 of the third interface group 113, and interface two 1102 of the second interface group 112 is communicated with interface six 1106. At this time, the first flow path 31 and the third flow path 33 communicate in series, and the second flow path 32 communicates alone. For example, the battery cooling flow path 310 and the motor cooling flow path 330 are connected in series to form a flow path cycle, and radiate heat from the battery 321 and the motor 333, and heat is supplied to the cabin through the PTC heater cooling flow path 320.

Referring to fig. 16, when the valve element 2 is located at the fourth working position, the two calibration groups are a second interface group 112 and a third interface group 113, respectively, one interface 110 of the second interface group 112 is communicated with one interface 110 of the third interface group 113, and the other interface 110 of the second interface group 112 is communicated with the other interface 110 of the third interface group 113; the interfaces 110 of the first interface group 111 communicate with each other.

At this time, the second flow path 32 and the third flow path 33 are connected in series, and the first flow path 31 is connected alone, and at this time, the second flow path 32 and the third flow path 33 can be soaked. For example, the PTC heater cooling flow path 320 and the motor cooling flow path 330 can recover waste heat from the motor 333, and supply heat to the cabin through the PTC heater cooling flow path 320, and the battery cooling flow path 310 cools the battery 321.

Referring to fig. 18, when the valve element 2 is in the fifth working position, the two calibration groups are the first interface group 111 and the second interface group 112, and the interfaces 110 of the third interface group 113 are communicated with each other. At this time, the first flow path 31 and the second flow path 32 communicate in series, and the third flow path 33 communicates alone. For example, the battery cooling flow path 310 and the PTC heater cooling flow path 320 are connected in series to form a flow path cycle, and the waste heat of the battery 321 can be used to supply heat to the cabin, or the PTC heater 311 on the PTC heater cooling flow path 320 can be used to preheat the battery 321 under low temperature conditions.

It should be understood that, in this specification, taking the first interface group 111 as an example, in one working position, "one interface 110 of the first interface group 111" may be the interface one 1101, and in another working position, "one interface 110 of the first interface group 111" may be the interface one 1101, and also may be the interface five 1105, which may be similar to that of other interface groups according to the actual situation, and will not be described in detail herein.

As shown in fig. 2, the interfaces 110 of the same group are distributed along the second direction, and the different groups of interfaces are distributed along the first direction. Specifically, the content of the present utility model will be described taking the example that the first interface group 111, the second interface group 112, and the third interface group 113 are sequentially distributed in the first direction. For example, the valve element 2 is inserted in the valve chamber 120 in the first direction, and the valve element 2 is rotatably connected to the valve seat 1 and is switched between a plurality of operating positions by rotation.

As shown in fig. 1, 10 to 18, optionally, the multi-way valve unit a further includes a first communication structure 410 for communicating two ports 110 adjacent in the first direction, and a second communication structure 420 for communicating two ports 110 adjacent in the second direction, wherein the first communication structure 410 and the second communication structure 420 are both disposed on the valve core 2, and two ends of the first communication structure 410 respectively penetrate through the side wall of the valve core 2 in two plugging areas 21 adjacent in the first direction; both ends of the second communication structure 420 penetrate the side wall of the valve element 2 in two blocking areas 21 adjacent in the second direction, respectively.

As shown in fig. 11, in the first working position, three second communication structures 420 are sequentially distributed on the valve core 2 along the first direction, and the three second communication structures 420 are a first communication groove 401, a second communication groove 402, and a third communication groove 403, where the first communication groove 401, the second communication groove 402, and the third communication groove 403 are used to implement communication between the interfaces 110 of the first interface group 111, communication between the interfaces 110 of the second interface group 112, and communication between the interfaces 110 of the third interface group 113, respectively.

Optionally, the multi-way valve unit a further comprises a third communication structure 430 for communicating two calibration ports, which are non-adjacent ports 110. That is, an additional interface 110 is also provided between the two calibration ports.

Optionally, two ends of the third communication structure 430 respectively penetrate through the side wall of the valve core 2 in two calibration plugging areas corresponding to two calibration ports, and the external profile of the cross section of the third communication structure 430 is a closed pattern, for example, a circle or a rectangle (not shown in this scheme).

The cross section may be understood as a plane perpendicular to the extending direction of the third communication structure 430 at any position of the third communication structure 430, for example, when the valve core 2 is located at the second working position, the two calibration ports are the third 1103 and the fifth 1105 ports, and the third 1103 and the fifth 1105 ports are communicated through the third communication structure 430. At this time, both ends of the third communication structure 430 penetrate the side wall of the valve element 2 at the third and fifth plugging areas, respectively, and do not penetrate the side wall of the valve element 2 at the other plugging areas 21.

As shown in fig. 12 and 13, in another alternative embodiment, unlike the alternative embodiment of the third communication structure 430 described above, the third communication structure 430 includes a switching flow path 431, where the switching flow path 431 is formed on the valve seat 1 or at least partially formed outside the valve seat 1, and the plurality of ports 110 includes the switching ports 114; when the adaptor port 114 is disposed adjacent to the first one of the two calibration ports, the adaptor port 114 communicates with the first one of the two calibration ports through the first communication structure 410 or the second communication structure 420, and the adaptor port 114 communicates with the second one of the two calibration ports through the adaptor flow path 431.

The transfer port 114 includes a fourth port 1104, the fourth port 1104 is disposed adjacent to the third port 1103, for example, the fourth port 1104 and the third port 1103 are distributed along the first direction, and a first communication structure 410, specifically a sixth communication slot 406 (fig. 15), is disposed between the eighth and seventh plugging areas 204 and seven corresponding to the fourth port 1104 and the third port 1103, and the fourth port 1104 and the third port 1103 can be communicated through the sixth communication slot 406, and at this time, the fourth port 1104 and the fifth port 1105 are communicated through a transfer flow path 431, specifically, as shown in fig. 4 to 8, and communicated through a second transfer flow path 4312. That is, at this time, the fifth port 1105 communicates with the fourth port 1104 through the second transfer flow path 4312, and the fourth port 1104 communicates with the third port 1103 through the sixth communication slot 406, so as to realize the communication between the fifth port 1105 and the third port 1103 (see fig. 12).

Referring to fig. 14 and 15, in the present embodiment, when the valve core 2 has the third working position, in addition to the third 1103 being communicated with the fifth 1105 of the port five through the third 430, the seventh 1107 of the ports is communicated with the first 1101 of the ports through the third 430 of the communication structure, at this time, the other adapter 114 is the eighth 1108 of the ports, the other adapter 431 is the first adapter 4311, and the first adapter 4311 is used to communicate the first 1101 and the eighth 1108 of the ports. At this time, the fourth plugging region 203 and the third plugging region are communicated by a first communication structure 410 such as a seventh communication groove 407, and the eighth plugging region 204 and the seventh plugging region are communicated by another first communication structure 410 such as an eighth communication groove 408 (refer to fig. 15)

In this way, the third communication structure 430 having a complicated structure can be avoided from being provided on the valve element 2, and the structural complexity of the valve element 2 can be reduced to some extent. When the valve body 2 is in each position, the first switching flow path 4311 and the second switching flow path 4312 may be shared.

In this embodiment, when the switching port 114 is not adjacent to the two calibration ports, for example, when the arrangement space of the ports 110 is limited, the front side of the first port group 111 and the rear side of the second port group 112 in the drawing are both provided with other groups of ports 110, and at this time, if the communication between the first port 1101 and the seventh port 1107 is required to be implemented, two adjacent switching ports 114 and two switching flow paths 431 are required to be provided, and the two calibration ports are respectively communicated with the two switching ports 114 through the two switching flow paths 431, and the two switching ports 114 are adjacently arranged and are communicated through the first communication structure 410 or the second communication structure 420. At this point, it should be appreciated that the two adapters 114 cannot be construed as interface four 1104 and interface eight 1108, respectively, described above. In this case, if the valve body 2 needs to have the third working position, four ports 114 and four switching passages 431 (not shown in this embodiment) are required.

Therefore, the method can be used for occasions with more flow paths 3, and when the number of the flow paths 3 is greater than or equal to three, at least three flow paths 3 obtain more communication mode combinations, so that corresponding communication or separation requirements can be met.

In the above embodiment, the valve core 2 is rotatably installed in the valve cavity 120, and when the valve core 2 is located at any working position, the number of ports 110 in the first direction is greater than the number of ports 110 in the second direction, the first direction is consistent with the axial direction of the valve core 2, and the second direction is consistent with the circumferential direction of the valve core 2. Therefore, the valve core 2 can be switched between different working positions by rotating a small angle, and the switching of different communication modes can be realized rapidly.

In the above embodiment, when the first communication structure 410 and the second communication structure 420 are both provided as the communication grooves, and the valve element 2 is provided with the weight-reduction groove in each of the blocking areas 21, part or all of the weight-reduction groove may be used to form the above communication groove, which will not be described in detail herein.

As shown in fig. 13 and 17, it should be understood that, in the case of not violating the use requirements of the first communication structure 410, the second communication structure 420 and the third communication structure 430, the partial plugging area 21 and the corresponding first communication structure 410 or second communication structure 420 may be shared in different working positions, for example, the corresponding area for plugging each interface 110 in the second working position and the fourth working position partially overlap, and the fifth communication groove 405 for communicating the plugging area six and the plugging area seven in the second working position may be used for communicating the plugging area two 202 and the plugging area three in the fourth working position. The other communication grooves at the other positions are not described in detail herein, for example, in the second working position, the fifth communication groove 405 is used to communicate the plugging region one 201 and the plugging region two 202, respectively.

As shown in fig. 9, in the above embodiment, alternatively, the valve seat 1 includes a seat body 11 and a flow path plate structure 12, the seat body 11 is provided with a valve cavity 120, and the seat body 11 is connected to the flow path plate structure 12;

at least one flow path 3 comprises two end sections 301 and an intermediate section 302 located between the end sections 301, both end sections 301 being formed in the flow path plate structure 12, one end of the end section 301 being in communication with the interface 110 of the corresponding interface group, the other end being formed with an outer interface 303 for connection with the intermediate section 302.

Illustratively, as shown in FIG. 1, the seat body 11 and the flow path plate structure 12 may be detachably connected. As shown in fig. 9 and 10, each of the battery cooling flow path 310, the heater cooling flow path 3, and the motor cooling flow path 330 includes two end sections 301, and, for example, the battery cooling flow path 310 includes two end sections 301, one end section 301 is a first end section 3011, the other end section 301 is a second end section 3012, the first end section 3011 and the second end section 3012 are formed on the flow path plate structure 12, one end of the first end section 3011 communicates with the first port 1101, the external port 303 formed at the other end is a first external port 3031, one end of the second end section 3012 communicates with the fifth port 1105, and the external port 303 formed at the other end is a second external port 3032. The first and second external interfaces 3031 and 3032 are connected to each other at both ends of the intermediate section 302 of the battery cooling flow path 310, and the PTC heater 311 and the warm air core 312 are provided on the intermediate section 302 of the battery cooling flow path 310, for example.

Thus, the outer ports 303 are not provided in a concentrated manner on the outer wall of the seat body 11, so that the layout of the plurality of flow paths 3 is facilitated. For example, the two end sections 301 of the heater cooling flow path 3 form a third external interface 3033 and a sixth external interface 3036, respectively, and the two end sections 301 of the motor cooling flow path 330 form a fourth external interface 3034 and a fifth external interface 3035, respectively.

As shown in fig. 1, further, at least one flow path 3 is provided with a pump 304, the pump 304 is connected to the flow path plate structure 12, and one end section 301 of the flow path 3 passes the pump 304, and/or one end section 301 of the at least one flow path 3 is provided with a water tank interface 305, the water tank interface 305 being for connection with the water tank 307.

As shown in fig. 10, the battery cooling flow path 310, the heater cooling flow path 3, and the motor cooling flow path 330 are each provided with a pump 304, and three pumps 304 are each mounted on the flow path plate structure 12, it should be understood that the three pumps 304 may be the same or different, e.g., the three pumps 304 are pump one 3041, pump two 3042, and pump three 3043, respectively.

Further, as shown in fig. 10, the battery cooling flow path 310 and the motor cooling flow path 330 are each provided with a water tank port 305 on one end section 301, and two water tank ports 305 may be used to connect with the same water tank 307 or different water tanks 307, which is not limiting.

Further, when the pump 304 and the tank joint 305 are provided on the flow path 3, the tank joint 305 and the pump 304 are located on different sides of the flow path plate structure 12 in the thickness direction.

Referring to fig. 8, illustratively, the first, second, third, fourth, and fifth external interfaces 3031, 3032, 3033, 3034, 3035, and 3036 and the pump 304 are located at one side of the flow path plate structure 12 in the thickness direction and are generally distributed along the circumferential direction of the flow path plate structure 12, and the tank interface 305 is located at the other side of the flow path plate structure 12 in the thickness direction. At this time, the water tank interface 305 and the pump 304 are reasonably arranged, the space utilization is relatively high, and the practicability is high.

The flow path plate structure 12 may be integrally formed as a plate structure, or may be formed as a non-plate structure, and may be integrally formed or may be formed as a split structure.

As shown in fig. 4 to 8, alternatively, the flow path plate structure 12 includes a support plate body 121 and a multi-pipe structure 122, the multi-pipe structure 122 being for at least partially forming the end section 301, the multi-pipe structure 122 being connected to the support plate body 121, and the seat body 11 being connected to the support plate body 121.

For example, the support plate bodies 121 are provided in two, and the two support plate bodies 121 sandwich the multi-pipe structure 122 at least partially therebetween to form a main force-bearing support, and referring to fig. 8, the multi-pipe structure 122 may include a plurality of pipes, which may include, for example, the above-described six end sections 301. Thus, the flow path plate structure 12 can be formed easily, for example, the multi-pipe structure 122 can be formed as needed, and then the multi-pipe structure 122 and the support plate body 121 can be connected.

As shown in fig. 9, a further embodiment of the present utility model provides a thermal management system comprising at least three flow paths 3 and the multi-way valve unit a of the above embodiment, wherein different flow paths 3 are respectively connected with different sets of interfaces 110 of the multi-way valve unit a, and both ends of the same flow path 3 are respectively connected with the same set of interfaces 110 of the multi-way valve unit a.

As shown in fig. 10, the flow path 3 may alternatively include a first flow path 31, a second flow path 32, and a third flow path 33; the first flow path 31 includes a battery cooling flow path 310, the second flow path 32 includes a PTC heater cooling flow path 320, and the third flow path 33 includes a motor cooling flow path 330.

As shown in fig. 10, alternatively, a radiator 331 is provided on the motor cooling flow path 330, or a regulating valve unit 332 and the radiator 331 are provided on the motor cooling flow path 330, and bypass branches 335 are connected in parallel to both ends of the radiator 331, and the flow rate of the bypass branches 335 is regulated by the regulating valve unit 332. For example, the regulator valve unit 332 may include a three-way valve. The motor cooling flow path 330 may pass through one or more controllers 334 in addition to passing through the motor 333, such as through a water jacket at the motor 333, which will not be described in detail herein. The battery cooling flow path 310 may cool the battery 321 through the battery 321, and a battery cooler 322 is provided thereon. Various modes of communication for the thermal management system have been described in detail in the embodiments of the multi-way valve unit a, and are not described here.

A further embodiment of the utility model provides a vehicle comprising the thermal management system of the above embodiment.

The vehicle and the thermal management system have all the advantages of the multi-way valve unit a, which are not described in detail here.

Although the utility model is disclosed above, the scope of the utility model is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model, and such changes and modifications would fall within the scope of the utility model.

Claims (10)

1. The multi-way valve unit is characterized by comprising a valve seat (1) and a valve core (2), wherein a valve cavity (120) is arranged in the valve seat (1), a plurality of interfaces (110) are arranged on the side wall of the valve cavity (120), and two interfaces (110) form an interface group; two interfaces (110) of the same group are used for being respectively connected with two ends of the same external flow path (3), and interfaces (110) of different groups are used for being connected with different flow paths (3); the interface group comprises a first interface group (111), a second interface group (112) and a third interface group (113);

the valve core (2) is connected with the valve seat (1), the valve core (2) is used for moving to different working positions relative to the valve seat (1), when the valve core (2) is located at a first working position, the interfaces (110) of the same group are communicated, the interfaces (110) of different groups are not communicated with each other, when the valve core (2) is located at a second working position, one interface (110) of the first interface group (111) is communicated with one interface (110) of the second interface group (112), the other interface (110) of the second interface group (112) is communicated with one interface (110) of the third interface group (113), and the other interface (110) of the third interface group (113) is communicated with the other interface (110) of the first interface group (111);

The valve core (2) is provided with plugging areas (21) corresponding to different interfaces (110), and communication between the interfaces (110) is realized through communication between the corresponding plugging areas (21).

2. The multi-way valve unit of claim 1, wherein a plurality of said ports (110) are distributed along a first direction and a plurality of said port groups are distributed along a second direction;

the multi-way valve unit further comprises a first communication structure (410) for communicating two interfaces (110) adjacent in the first direction, a second communication structure (420) for communicating two interfaces (110) adjacent in the second direction, and a third communication structure (430) for communicating two calibration ports, the two calibration ports being the interfaces (110) not adjacent in the first direction or the second direction;

wherein the first communication structure (410) and the second communication structure (420) are both arranged on the valve core (2), and two ends of the first communication structure (410) penetrate through the side wall of the valve core (2) in two plugging areas (21) adjacent along the first direction respectively; two ends of the second communication structure (420) respectively penetrate through the side wall of the valve core (2) in two plugging areas (21) adjacent to each other along the second direction;

The third communication structure (430) is arranged on the valve core (2), two ends of the third communication structure (430) penetrate through the side wall of the valve core (2) in two calibration plugging areas corresponding to the two calibration ports respectively, and the outer profile of the cross section of the third communication structure (430) is a closed graph;

alternatively, the third communication structure (430) includes a switching flow path (431), the switching flow path (431) is formed on the valve seat (1) or at least partially formed outside the valve seat (1), and a plurality of ports (110) include switching ports (114); wherein when the transfer port (114) is disposed adjacent to a first one of the two calibration ports, the transfer port (114) communicates with the first one of the two calibration ports through the first communication structure (410) or the second communication structure (420), and the transfer port (114) communicates with the second one of the two calibration ports through the transfer flow path (431); when the switching ports (114) and the two calibration ports are not adjacently arranged, the two calibration ports are respectively communicated with the two switching ports (114) through two switching flow paths (431), and the two switching ports (114) are adjacently arranged and are communicated through the first communication structure (410) or the second communication structure (420).

3. The multi-way valve unit according to claim 2, wherein the first interface group (111), the second interface group (112) and the third interface group (113) are sequentially distributed along the first direction, the interfaces (110) of the same group are distributed along the second direction, the valve core (2) is rotatably installed in the valve cavity (120), the first direction is consistent with the axial direction of the valve core (2), and the second direction is consistent with the circumferential direction of the valve core (2);

and/or, the first communication structure (410) and the second communication structure (420) are both provided as communication grooves;

and/or the valve core (2) is provided with a weight reduction groove in each plugging area (21).

4. A multi-way valve unit according to any one of claims 1 to 3, wherein when said valve element (2) is in a calibration operating position, two calibration groups exist among a plurality of said interface groups, said interfaces (110) of different ones of said calibration groups are respectively communicated with each other, and said interfaces (110) of the same one of said calibration groups are not communicated with each other.

5. The multi-way valve unit according to claim 4, wherein one of the ports (110) of the first port group (111) communicates with one of the ports (110) of the third port group (113) when the spool (2) is in a third operating position, and the other of the ports (110) of the first port group (111) communicates with the other of the ports (110) of the third port group (113); -communication between said interfaces (110) of said second set of interfaces (112);

When the valve core (2) is positioned at a fourth working position, one interface (110) of the second interface group (112) is communicated with one interface (110) of the third interface group (113), and the other interface (110) of the second interface group (112) is communicated with the other interface (110) of the third interface group (113); -communication between said interfaces (110) of said first set of interfaces (111);

when the valve core (2) is located at a fifth working position, one interface (110) of the first interface group (111) is communicated with one interface (110) of the second interface group (112), and the other interface (110) of the first interface group (111) is communicated with the other interface (110) of the second interface group (112); -communication between said interfaces (110) of said third set of interfaces (113).

6. A multi-way valve unit according to any one of claims 1 to 3, characterized in that the valve seat (1) comprises a seat body (11) and a flow path plate structure (12), the seat body (11) being provided with the valve chamber (120) and the interface (110), the seat body (11) being connected with the flow path plate structure (12);

at least one of the flow paths (3) comprises two end sections (301) and an intermediate section (302) between the end sections (301), both end sections (301) being formed in the flow path plate structure (12), one end of the end section (301) being in communication with the corresponding interface (110) of the interface group, the other end being formed with an outer interface (303) for connection with the intermediate section (302);

Wherein a pump (304) is arranged on at least one flow path (3), the pump (304) is connected with the flow path plate structure (12), and one end section (301) of the flow path (3) passes through the pump (304), and/or a water tank interface (305) is arranged on one end section (301) of at least one flow path (3), and the water tank interface (305) is used for being connected with a water tank (307).

7. The multi-way valve unit according to claim 6, characterized in that the flow path plate structure (12) comprises a support plate body (121) and a multi-pipe structure (122), the multi-pipe structure (122) being connected with the support plate body (121), the seat body (11) being connected with the support plate body (121), the multi-pipe structure (122) being for at least partly forming the end section (301);

and/or when the pump (304) and the water tank interface (305) are provided on the flow path (3), the water tank interface (305) and the pump (304) are located on different sides of the flow path plate structure (12) in the thickness direction.

8. A thermal management system comprising at least three flow paths (3) and a multi-way valve unit according to any one of claims 1 to 7, wherein different ones of said flow paths (3) are respectively connected to different groups of interfaces (110) of said multi-way valve unit, and wherein both ends of a same one of said flow paths (3) are respectively connected to two of said interfaces (110) of a same group of said multi-way valve unit.

9. The thermal management system according to claim 8, wherein the flow path (3) comprises a first flow path (31), a second flow path (32) and a third flow path (33); the first flow path (31) includes a battery cooling flow path (310), the second flow path (32) includes a PTC heater cooling flow path (320), and the third flow path (33) includes a motor cooling flow path (330);

be provided with radiator (331) on motor cooling flow path (330), perhaps be provided with governing valve unit (332) on motor cooling flow path (330) with radiator (331), and be connected in parallel at the both ends of radiator (331) have bypass branch road (335), through governing valve unit (332) the flow of bypass branch road (335).

10. A vehicle comprising a thermal management system according to claim 8 or 9.