CN216812978U - Valve device, thermal management system and electric vehicle - Google Patents

Abstract

The embodiment of the application discloses a valve device, a thermal management system and an electric vehicle, wherein the valve device comprises a valve shell and a valve core, and the valve core can rotate relative to the valve shell; the valve shell is provided with a plurality of interfaces which are distributed around the rotation center of the valve core; the valve core is provided with a plurality of channels which are not communicated with each other, and the projections of the channels in a plane vertical to the rotation central axis of the valve core are not crossed with each other; each passage of the valve spool is used to communicate with at least two ports of the valve housing. The structural design of the valve device can realize the switching of various runner modes, the occupied space is small, and when the valve device is applied to a thermal management system of an electric vehicle, the connecting structure of a plurality of circulation loops of the thermal management system can be simplified.

Description

Valve device, thermal management system and electric vehicle

Technical Field

The application relates to the technical field of heat management, in particular to a valve device, a heat management system and an electric vehicle.

Background

The electric vehicle has the advantages of energy conservation, environmental protection and the like, and is gradually popularized in the market, and in an actual application scene, management objects such as a battery pack, a passenger compartment, a power assembly and the like of the electric vehicle are generally required to be subjected to thermal management so as to maintain the temperature of the management objects within a normal operation range.

Because there are many management objects for the electric vehicle to perform thermal management, if each management object is provided with an independent subsystem, the whole thermal management system is too complex, and therefore, the existing thermal management system is developed towards integration, i.e. circulation loops of the management objects are integrated together, so that a valve assembly is needed to realize switching of each flow path. At present, a plurality of multi-way valves are integrated, and although the mode can meet the requirement of flow path switching, the valve assembly occupies a large space, the switchable modes are relatively few, and the universality is not strong.

In addition to electric vehicles, a valve device having a plurality of switching modes is required in other cases of multi-mode switching and distribution of cold and hot fluids.

Disclosure of Invention

The embodiment of the application provides a valve device, a thermal management system and an electric vehicle, the structural design of the valve device can realize the switching of various runner modes, the occupied space is small, and when the valve device is applied to the thermal management system of the electric vehicle, the connection structure of a plurality of circulation loops of the thermal management system can be simplified.

A first aspect of an embodiment of the present application provides a valve device, including a valve housing and a valve core, where the valve core is rotatable relative to the valve housing, and the valve core is generally configured as a cylindrical structure, or has a cylindrical main body structure; the valve shell is provided with a plurality of interfaces which are arranged around the rotation center of the valve core; the valve core is provided with a plurality of channels which are not communicated with each other, and the projections of the channels in a plane vertical to the rotation central axis of the valve core are not crossed with each other; each passage of the valve spool is used to communicate with at least two ports of the valve housing.

This valve device passes through the relative valve casing rotation of case for a plurality of passageways of case can communicate two at least interfaces of valve casing respectively, can form a plurality of runners like this, through the rotation of case, can switch different runner modes, and this valve device can realize the switching of multiple runner mode, and the integrated level is higher, and occupation space is also less.

Based on the first aspect, an embodiment of the present application further provides a first implementation manner of the first aspect: the plurality of channels of the valve element are in the same plane, and the center lines of the plurality of channels can be considered to be in the same plane, that is, the plurality of channels are not arranged in layers in the height direction of the valve element. In this way, the valve cartridge occupies a smaller volume and, correspondingly, the valve device also occupies a smaller volume.

Based on the first aspect or the first implementation manner of the first aspect, embodiments of the present application further provide a second implementation manner of the first aspect: the plurality of channels include a first channel and a second channel, the interface communicated with the inlet end of the first channel is not adjacent to the interface communicated with the outlet end of the first channel, and the interface communicated with the inlet end of the second channel is adjacent to the interface communicated with the outlet end of the second channel. It can be understood that after the first channel communicates with the at least two ports of the valve housing, there are other ports between the port communicating with the inlet end of the first channel and the port communicating with the outlet end of the first channel; after the second channel communicates with at least two interfaces of the valve casing, no other interface exists between the interface communicated with the inlet end of the second channel and the interface communicated with the outlet end of the second channel, if the second channel is communicated with only two interfaces, the two communicated interfaces are adjacently arranged, and if the second channel is communicated with more than three interfaces, the communicated interfaces are sequentially arranged, namely sequentially adjacent. This arrangement is advantageous for increasing the flow channel pattern of the valve device.

Based on the second implementation manner of the first aspect, an embodiment of the present application further provides a third implementation manner of the first aspect: one side of the first channel is provided with a second channel, and the other side of the first channel is provided with at least one second channel. With this arrangement, the valve device can have a larger number of flow channel patterns with the same number of channels.

Based on the third implementation manner of the first aspect, the present application provides an example of the fourth implementation manner of the first aspect: two second channels are arranged on the other side of the first channel.

Based on the first aspect and any one of the first to fourth implementation manners of the first aspect, this application example further provides a fifth implementation manner of the first aspect: the valve housing has a housing wall portion that is perpendicular to a rotational center axis of the valve core, and at least part of the plurality of ports of the valve core is formed in the housing wall portion. Therefore, the size of the valve device is favorably reduced, the pipelines connected with the interfaces of the valve shell are relatively concentrated, and the development trend of miniaturization is favorably realized.

Based on the first aspect and any one of the first to fifth implementation manners of the first aspect, this application example further provides a sixth implementation manner of the first aspect: the case is cylindrical structure, and a plurality of passageways of case include the crooked passageway that runs through the case perisporium or run through the crooked passageway of case end wall to the different interface forms of adaptation valve casing make things convenient for the intercommunication interface.

Based on the first aspect and any one of the first to sixth implementation manners of the first aspect, this application example further provides a seventh implementation manner of the first aspect: the plurality of ports of the valve housing comprises no more than nine ports, i.e. the valve housing is provided with no more than nine ports, and the plurality of channels of the valve spool comprises no more than four channels, i.e. the valve spool has no more than four channels. Therefore, the valve shell and the valve core can be conveniently machined, and the machining difficulty can be reduced.

Based on the seventh implementation manner of the first aspect, the present application provides an eighth implementation manner of the first aspect: the plurality of interfaces of valve casing include nine interfaces, and wherein eight interfaces are evenly arranged around the centre of rotation of case, and ninth interface is located the side of one of eight interfaces. Therefore, by combining the channel design of the valve core, the switching of 24 flow channel modes can be realized at most by the valve device, the integration level is higher, wherein eight interfaces are uniformly distributed around the rotation center of the valve core, so that the switching of one flow channel mode can be realized by rotating the valve core by the same angle, and the control is convenient.

Based on the seventh implementation manner of the first aspect, the present application provides a ninth implementation manner of the first aspect: a plurality of interfaces of valve casing include eight interfaces, and eight interfaces are evenly arranged around the rotation center of case. Therefore, by combining the channel design of the valve core, the valve device can realize the switching of 8 flow channel modes at most, and the eight interfaces are uniformly distributed around the rotation center of the valve core, so that the valve core can realize the switching of one flow channel mode by rotating the same angle, and the control is convenient.

Based on the ninth implementation manner of the first aspect, the present application provides a tenth implementation manner of the first aspect: the valve assembly also includes a proportional three-way valve connected in series with one of the eight ports of the valve housing. Therefore, the valve device can realize the switching of 24 runner modes at most, the number of the interfaces on the valve shell is relatively less under the condition of realizing the same function, the occupied volumes of the valve shell and the valve core are favorably reduced, the serially connected proportional three-way valves can be distributed according to the space condition of an application system, and the arrangement is relatively flexible.

A second aspect of the embodiments of the present application provides a thermal management system, including a plurality of circulation loops, where the plurality of circulation loops share one valve device, and the valve device is the valve device according to any one of the first aspect of the embodiments or the first aspect of the embodiments.

A third aspect of the embodiments of the present application provides an electric vehicle, including the thermal management system in the second aspect, which may be used to switch different modes according to different thermal management requirements, and is favorable to reduce energy consumption and cost of thermal management.

Drawings

Fig. 1 is a schematic perspective view of a valve device according to an embodiment of the present disclosure;

FIG. 2 is a schematic perspective view of a valve cartridge of the valve assembly of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the valve assembly of FIG. 1 at a passage location of the valve spool;

FIGS. 4-1 through 4-24 are simplified diagrams illustrating the 24 flow path modes of the valve assembly of FIG. 1;

FIG. 5 is a schematic cross-sectional view of a valve assembly provided in accordance with another embodiment of the present application;

FIG. 6 is a schematic cross-sectional view of a valve assembly provided in accordance with yet another embodiment of the present application;

FIGS. 7-1 to 7-8 show simplified views of 8 flow channel patterns of the valve device of FIG. 6;

fig. 8 is a schematic view of a valve device according to still another embodiment of the present application.

Detailed Description

The embodiment of the application provides a valve device, a thermal management system and an electric vehicle; the valve device has multiple flow passage modes and can be switched among the multiple flow passage modes, and when the valve device is applied to a thermal management system of an electric vehicle or other thermal management systems with multiple circulation loops, the connection structure among the multiple circulation loops in the thermal management systems can be simplified.

The terms "first," "second," and the like, as used herein, are used solely to distinguish one from another and are not intended to denote a particular order or sequence or sub-division. It is to be understood that the terms so used are interchangeable under appropriate circumstances.

In one aspect, the present invention provides a valve assembly, as shown in fig. 1, the valve assembly includes a valve housing 10 and a valve core 20, the valve core 20 is located in the valve housing 10, the valve core 20 is rotatable relative to the valve housing 10, generally, a rotating shaft 30 is fixed on the valve core 20, and the rotating shaft 30 is driven to rotate by an actuator (not shown) so as to drive the valve core 20 to rotate relative to the valve housing 10. The actuator may be a motor or the like.

Referring also to fig. 2, the valve core 20 is generally cylindrical or has a cylindrical main body structure, and the valve core 20 has a plurality of channels that are not communicated with each other, in this embodiment, each channel is a curved channel that penetrates through the core peripheral wall 201 of the valve core 20, that is, two end openings of each channel are formed in the core peripheral wall 201.

Referring also to fig. 3, the valve housing 10 has a cylindrical housing peripheral wall 101, and the valve housing 10 has nine ports formed on the housing peripheral wall 101, the nine ports being distributed around the rotation center of the valve element 20, and in particular, the nine ports being distributed on a circle centered on the rotation center of the valve element 20. For convenience of description and understanding, the first port 11, the second port 12, the third port 13, the fourth port 14, the fifth port 15, the sixth port 16, the seventh port 17, the eighth port 18, and the ninth port 19 are respectively referred to in the following, wherein the first to eighth ports are arranged at intervals along the circumferential direction of the valve housing 10, and the ninth port 19 is arranged beside the fifth port 15, which can be simply understood as that the ninth port 19 is arranged next to the fifth port 15, so that in some modes, one end of one channel of the valve core 20 can be simultaneously communicated with the fifth port 15 and the ninth port 19 (which will be described in detail later).

Still referring to fig. 3, in this embodiment, the valve core 20 is specifically provided with four mutually independent channels, that is, the four channels are not communicated with each other, and the projections of the four channels in a plane perpendicular to the rotation central axis of the valve core 20 do not intersect with each other; referring to fig. 2, the four channels of the valve core 20 are located in the same plane, and the center lines of the four channels are considered to be located in the same plane, and there is no dislocation or layered arrangement in the height direction of the valve core 20 (i.e., the up-down direction in the view of fig. 2), so that the thickness of the valve core 20 (i.e., the size in the height direction) can be set relatively small, accordingly, the volume of the valve housing 10 engaged with the valve core 20 can be relatively small, and the valve structure formed by the valve housing 10 and the valve core 20 occupies a small volume.

In other embodiments, the number of the channels of the valve core 20 may be other numbers, and in this case, the arrangement of the channels may be similar to that described above; in addition, when the number of the passages of the valve element 20 is set to be large and the arrangement is inconvenient on the same layer, or when other factors cause the arrangement to be inconvenient on the same layer, the passages may be arranged on the valve element 20 in two layers.

Each channel of the valve core 20 is used for communicating with at least two interfaces of the valve housing 10, it can be understood that, because the channels of the valve core 20 are not communicated with each other, each channel communicating with at least two interfaces is not communicated with each other, and at least two interfaces communicated by the channels can be connected into a circulation loop in a thermal management system, so that the valve device can form a plurality of flow channels when in a mode, and is connected into a plurality of circulation loops, namely each flow channel is connected into one circulation loop, and the communication mode of the interfaces can be changed through the rotation of the valve core 20 relative to the valve housing 10, namely, the switching of a plurality of flow channel modes is realized.

In this embodiment, the four passages of the valve spool 20 include two types of passages, specifically, one passage of the first type, which is referred to herein as a first passage 21, and three passages of the second type, which are referred to herein as a second passage one 221, a second passage two 222, and a third passage three 223, for distinction.

It is apparent that each channel of the valve cartridge 20 has an inlet end for the inflow of fluid and an outlet end for the outflow of fluid after the valve device is connected to the circulation circuit. The first channel, namely the first channel 21, after communicating with at least two ports of the valve housing 10, has a port communicating with the inlet end and a port communicating with the outlet end not adjacent to each other, and the second channel (including the second channel one 221, the second channel two 222 and the third channel two 223) has a port communicating with the inlet end and a port communicating with the outlet end adjacent to each other after communicating with at least two ports of the valve housing 10.

Non-adjacent here means that there is another interface between two interfaces in the direction of arrangement of the plurality of interfaces of the valve housing 10, i.e., in the circumferential direction of the housing circumferential wall 101 of the valve housing 10, and adjacent means that there is no other interface between two interfaces in the direction of arrangement of the plurality of interfaces of the valve housing 10, i.e., in the circumferential direction of the housing circumferential wall 101 of the valve housing 10; taking fig. 3 as an example, the first interface 11 and the eighth interface 18 are adjacent, and the first interface 11 and the seventh interface 17 are not adjacent.

In terms of the relative positions of the valve housing 10 and the valve core 20 shown in fig. 3, the first passage 21 of the valve core 20 communicates with the fifth port 15 and the eighth port 18 of the valve housing 10, which are not adjacent to each other, the second passage one 221 of the valve core 20 communicates with the third port 13 and the fourth port 14 of the valve housing 10, which are adjacent to each other, the second passage two 222 communicates with the first port 11 and the second port 12 of the valve housing 10, which are adjacent to each other, and the second passage three 223 communicates with the sixth port 16 and the seventh port 17 of the valve housing 10.

In the example shown in fig. 3, two second channels, i.e., a first channel 221 and a second channel 222, are provided on one side of the first channel 21, and one second channel, i.e., a third channel 223, is provided on the other side of the first channel 21. It will be appreciated that in other embodiments, other numbers of second channels may be provided on the other side of the first channel 21.

So configured, the valve assembly illustrated in fig. 3 has 24 flow channel patterns, as described below in conjunction with fig. 4-1 through 4-24. It should be noted that fig. 4-1 to 4-24 are only schematic illustrations, and for the sake of clarity of the flow channel mode, the channels of the valve core 20 are represented by curved lines with arrows, and the directions of the arrows can be understood as the flow directions of the fluids in the corresponding channels.

As shown in fig. 4-1, in the flow path mode, the first passage 21 of the valve core 20 communicates with the fifth port 15 and the eighth port 18 of the valve housing 10, the first second passage 221 communicates with the third port 13 and the fourth port 14 of the valve housing 10, the second passage 222 communicates with the first port 11 and the second port 12 of the valve housing 10, and the third second passage 223 communicates with the sixth port 16 and the seventh port 17 of the valve housing 10, and the flow paths of the flow paths are respectively as follows: the eighth port 18 → the first channel 21 → the fifth port 15, the fourth port 14 → the second channel one 221 → the third port 13, the second port 12 → the second channel two 222 → the first port 11, the sixth port 16 → the second channel three 223 → the seventh port 17.

As shown in fig. 4-2, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the eighth port 18 → the first channel 21 → the ninth port 19, the fourth port 14 → the second channel one 221 → the third port 13, the second port 12 → the second channel two 222 → the first port 11, the sixth port 16 → the second channel three 223 → the seventh port 17.

As shown in fig. 4 to 3, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the eighth port 18 → the first channel 21 → the fifth port 15 and the ninth port 19, the fourth port 14 → the second channel one 221 → the third port 13, the second port 12 → the second channel two 222 → the first port 11, the sixth port 16 → the second channel three 223 → the seventh port 17.

As can be seen from comparing fig. 4-1 to 4-3, in the three flow path modes, the flow paths of the flow paths communicated with the three second paths are identical, and the difference is that the flow paths communicated with the first path 21 are different, and as described above, since the ninth port 19 and the fifth port 15 are disposed next to each other, the first path 21 has three modes, that is, the eighth port 18 and the fifth port 15 are communicated, the eighth port 18 and the ninth port 19 are communicated, or the eighth port 18 and the fifth port 15 are communicated, while the rotation angle of the valve body 20 in the interval shown in fig. 4-1 to 4-3 is properly adjusted, so that the flow paths communicated with the three second paths are not changed. It should be noted that, in order to realize three flow path modes in one rotation interval, the sizes of the openings of the passages of the valve housing 10 shell wall and the valve core 20 between the adjacent two ports in the first port 11 to the eighth port 18 need to be designed in a matching way, as understood in connection with fig. 3, for example, the two end openings of the second passage one 221 are respectively overlapped with the third port 13 and the fourth port 14, but in the three modes of fig. 4-1 to 4-3, the overlapped flow area is different.

As shown in fig. 4 to 4, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the sixth port 16 → the first channel 21 → the first port 11, the fourth port 14 → the second channel one 221 → the fifth port 15, the second port 12 → the second channel two 222 → the third port 13, the eighth port 18 → the second channel three 223 → the seventh port 17.

As shown in fig. 4 to 5, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the sixth port 16 → the first channel 21 → the first port 11, the fourth port 14 → the second channel one 221 → the ninth port 19, the second port 12 → the second channel two 222 → the third port 13, the eighth port 18 → the second channel three 223 → the seventh port 17.

As shown in fig. 4 to 6, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the sixth port 16 → the first channel 21 → the first port 11, the fourth port 14 → the second channel one 221 → the fifth port 15 and the ninth port 19, the second port 12 → the second channel two 222 → the third port 13, the eighth port 18 → the second channel three 223 → the seventh port 17.

As can be seen from comparison between fig. 4-4 and fig. 4-6, in the three flow path modes, the flow paths of the flow paths in which the first path 21, the second path 222 and the second path 223 communicate with each other are identical, except that the flow path in which the second path 221 communicates with each other is different, and the rotation angle of the valve element 20 in the interval shown in fig. 4-4 to fig. 4-6 is appropriately adjusted, so that the second path 221 has three modes, that is, the fourth port 14 and the fifth port 15 are communicated, the fourth port 14 and the ninth port 19 are communicated, or the fourth port 14 is communicated with the fifth port 15 and the ninth port 19 at the same time, under the condition that other flow paths are not changed.

As shown in fig. 4 to 7, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the second port 12 → the first channel 21 → the seventh port 17, the sixth port 16 → the second channel one 221 → the fifth port 15, the fourth port 14 → the second channel two 222 → the third port 13, the eighth port 18 → the second channel three 223 → the first port 11.

As shown in fig. 4 to 8, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the second port 12 → the first channel 21 → the seventh port 17, the sixth port 16 → the first channel 221 → the ninth port 19, the fourth port 14 → the second channel 222 → the third port 13, and the eighth port 18 → the third channel 223 → the first port 11.

As shown in fig. 4 to 9, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the second port 12 → the first channel 21 → the seventh port 17, the sixth port 16 → the second channel one 221 → the fifth port 15 and the ninth port 19, the fourth port 14 → the second channel two 222 → the third port 13, and the eighth port 18 → the second channel three 223 → the first port 11.

As can be seen from comparison between fig. 4-7 and 4-9, in the three flow path modes, the flow paths of the flow paths communicated with the first path 21, the second path 222 and the second path 223 are identical, the difference is that the flow path communicated with the first path 221 is different, and the rotation angle of the valve core 20 in the interval shown in fig. 4-7 to 4-9 is properly adjusted, so that under the condition that other flow paths are not changed, the second path 221 has three modes, namely, the sixth port 16 is communicated with the fifth port 15, or the sixth port 16 is communicated with the ninth port 19, or the sixth port 16 is communicated with the fifth port 15 and the ninth port 19.

As shown in fig. 4 to 10, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the eighth port 18 → the first channel 21 → the third port 13, the sixth port 16 → the second channel one 221 → the seventh port 17, the fourth port 14 → the second channel two 222 → the fifth port 15, and the second port 12 → the second channel three 223 → the first port 11.

As shown in fig. 4 to 11, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the eighth port 18 → the first channel 21 → the third port 13, the sixth port 16 → the second channel one 221 → the seventh port 17, the fourth port 14 → the second channel two 222 → the ninth port 19, the second port 12 → the second channel three 223 → the first port 11.

As shown in fig. 4 to 12, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the eighth port 18 → the first channel 21 → the third port 13, the sixth port 16 → the second channel one 221 → the seventh port 17, the fourth port 14 → the second channel two 222 → the fifth port 15 and the ninth port 19, and the second port 12 → the second channel three 223 → the first port 11.

As can be seen from comparison between fig. 4-10 and fig. 4-12, in the three flow path modes, the flow paths of the flow paths communicated with the first path 21, the second path 221 and the second path 223 are identical, the difference is that the flow path communicated with the second path 222 is different, and the rotation angle of the valve core 20 in the interval shown in fig. 4-10 to fig. 4-12 is properly adjusted, so that under the condition that other flow paths are not changed, the second path 222 has three modes, namely, the fourth port 14 is communicated with the fifth port 15, the fourth port 14 is communicated with the ninth port 19, or the fourth port 14 is communicated with the fifth port 15 and the ninth port 19.

As shown in fig. 4 to 13, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the fourth port 14 → the first channel 21 → the first port 11, the eighth port 18 → the second channel one 221 → the seventh port 17, the sixth port 16 → the second channel two 222 → the fifth port 15, the second port 12 → the second channel three 223 → the third port 13.

As shown in fig. 4 to 14, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the fourth port 14 → the first channel 21 → the first port 11, the eighth port 18 → the second channel one 221 → the seventh port 17, the sixth port 16 → the second channel two 222 → the ninth port 19, the second port 12 → the second channel three 223 → the third port 13.

As shown in fig. 4 to 15, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the fourth port 14 → the first channel 21 → the first port 11, the eighth port 18 → the second channel one 221 → the seventh port 17, the sixth port 16 → the second channel two 222 → the fifth port 15 and the ninth port 19, and the second port 12 → the second channel three 223 → the third port 13.

As can be seen from comparison between fig. 4-13 and fig. 4-15, in the three flow path modes, the flow paths of the flow paths communicated with the first path 21, the second path 221 and the second path 223 are identical, the difference is that the flow path communicated with the second path 222 is different, and the rotation angle of the valve core 20 in the interval shown in fig. 4-13 to fig. 4-15 is properly adjusted, so that under the condition that other flow paths are not changed, the second path 222 has three modes, namely, the sixth port 16 is communicated with the fifth port 15, or the sixth port 16 is communicated with the ninth port 19, or the sixth port 16 is communicated with the fifth port 15 and the ninth port 19.

As shown in fig. 4 to 16, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the second port 12 → the first channel 21 → the fifth port 15, the first port 11 → the second channel one 221 → the eighth port 18, the sixth port 16 → the second channel two 222 → the seventh port 17, the fourth port 14 → the second channel three 223 → the third port 13.

As shown in fig. 4 to 17, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the second port 12 → the first channel 21 → the ninth port 19, the first port 11 → the second channel one 221 → the eighth port 18, the sixth port 16 → the second channel two 222 → the seventh port 17, the fourth port 14 → the second channel three 223 → the third port 13.

As shown in fig. 4 to 18, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the second port 12 → the first channel 21 → the fifth port 15 and the ninth port 19, the first port 11 → the second channel one 221 → the eighth port 18, the sixth port 16 → the second channel two 222 → the seventh port 17, the fourth port 14 → the second channel three 223 → the third port 13.

As can be seen from comparing fig. 4-16 to fig. 4-18, the flow paths of the three flow paths in which the second passages communicate with each other are identical, and the difference is that the flow path in which the first passage 21 communicates with each other is different, and the rotation angle of the valve body 20 in the interval shown in fig. 4-16 to fig. 4-18 is appropriately adjusted, so that the first passage 21 has three modes, i.e., the second port 12 communicates with the fifth port 15, the second port 12 communicates with the ninth port 19, or the second port 12 communicates with the fifth port 15 and the ninth port 19 simultaneously, in the case that the other flow paths are not changed.

As shown in fig. 4 to 19, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the sixth port 16 → the first channel 21 → the third port 13, the second port 12 → the second channel one 221 → the first port 11, the eighth port 18 → the second channel two 222 → the seventh port 17, and the fourth port 14 → the second channel three 223 → the fifth port 15.

As shown in fig. 4 to 20, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the sixth port 16 → the first channel 21 → the third port 13, the second port 12 → the second channel one 221 → the first port 11, the eighth port 18 → the second channel two 222 → the seventh port 17, the fourth port 14 → the second channel three 223 → the ninth port 19.

As shown in fig. 4 to 21, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the sixth port 16 → the first channel 21 → the third port 13, the second port 12 → the second channel one 221 → the first port 11, the eighth port 18 → the second channel two 222 → the seventh port 17, the fourth port 14 → the second channel three 223 → the fifth port 15 and the ninth port 19.

As can be seen from comparison between fig. 4-19 and fig. 4-21, in the three flow path modes, the flow paths of the flow paths communicated with the first passage 21, the second passage one 221 and the second passage two 222 are identical, the difference is that the flow path communicated with the second passage three 223 is different, and the rotation angle of the valve core 20 in the interval shown in fig. 4-19 to fig. 4-21 is properly adjusted, so that under the condition that other flow paths are not changed, the second passage three 223 has three modes, namely, the fourth port 14 is communicated with the fifth port 15, the fourth port 14 is communicated with the ninth port 19, or the fourth port 14 is communicated with the fifth port 15 and the ninth port 19.

As shown in fig. 4 to 22, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the fourth port 14 → the first channel 21 → the seventh port 17, the second port 12 → the second channel one 221 → the third port 13, the first port 11 → the second channel two 222 → the eighth port 18, the sixth port 16 → the second channel three 223 → the fifth port 15.

As shown in fig. 4 to 23, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the fourth port 14 → the first channel 21 → the seventh port 17, the second port 12 → the second channel one 221 → the third port 13, the first port 11 → the second channel two 222 → the eighth port 18, the sixth port 16 → the second channel three 223 → the ninth port 19.

As shown in fig. 4 to 24, in the flow path mode, the flow paths of the respective flow paths of the valve device are: the fourth port 14 → the first channel 21 → the seventh port 17, the second port 12 → the second channel one 221 → the third port 13, the first port 11 → the second channel two 222 → the eighth port 18, the sixth port 16 → the second channel three 223 → the fifth port 15 and the ninth port 19.

As can be seen from comparing fig. 4-22 to fig. 4-24, in the three flow path modes, the flow paths of the flow paths through which the first channel 21, the first second channel 221 and the second channel 222 communicate are identical, the difference is that the flow path through which the third second channel 223 communicates is different, and the rotation angle of the valve core 20 in the interval shown in fig. 4-22 to fig. 4-24 is properly adjusted, so that in the case that the other flow paths are not changed, the third channel 223 has three modes, that is, the sixth port 16 communicates with the fifth port 15, or the sixth port 16 communicates with the ninth port 19, or the sixth port 16 communicates with both the fifth port 15 and the ninth port 19.

As described above in detail with reference to the 24 flow channel modes of the valve device shown in fig. 1 to 3, switching between the 24 flow channel modes can be achieved by rotating the spool 20 by the actuator. From the above description it can be simply understood that the valve device has mainly eight rotation intervals, and three flow channel modes in each rotation interval.

In the valve device shown in fig. 1 to 3, the ports of the valve housing 10 are formed on the housing peripheral wall 101, and the passages of the valve element 20 are of a curved passage structure with both ends open through the core peripheral wall 201. It will be appreciated that the ports of the valve housing 10 and the passages of the valve core 20 may be provided in other forms.

Referring to fig. 5, fig. 5 is a schematic cross-sectional view of a valve device according to another embodiment of the present application. In fig. 5, the ports of the valve housing 10 are shown in dotted lines, and in this embodiment, the valve housing 10 includes a housing wall portion 102 perpendicular to the central axis of rotation of the valve core 20, and nine ports are formed in the housing wall portion 102 of the valve housing 10, and are arranged in a circle around the center of rotation of the valve core 20, similar to the arrangement shown in fig. 3; specifically, the valve element 20 may be fitted and sealed with the wall portion 102 of the valve housing 10, the valve element 20 has a core wall portion fitted and sealed with the wall portion 102, and each channel of the valve element 20 may penetrate the core wall portion, so that each channel of the valve element 20 can communicate with at least two ports of the valve housing 10 when the valve element 20 rotates relative to the valve housing 10. Specifically, each passage may be in the form of a curved channel through the core wall, with the understanding that the curved channel opens toward the shell wall 102, thus facilitating communication between the curved channel and at least two ports during rotation of the valve cartridge 20. Of course, both ends of the passage may be opened by passing only both ends of the passage through the core wall.

In the example of fig. 5, the number of passages, the passage form and the arrangement of the valve core 20 are the same as those of the embodiment of fig. 3 described above. As can be seen from fig. 5 and 3, this arrangement allows the radial dimension of the valve housing 10 to be relatively reduced, which is advantageous for a compact design of the valve assembly.

It will be appreciated that the valve assembly of fig. 5 also has 24 flow path patterns as the valve assembly of fig. 3, which can be understood with reference to fig. 4-1 to 4-24 and will not be described in detail.

Of course, the plurality of ports of the valve housing 10 may be formed partially on the housing peripheral wall and partially on the housing wall portion as the actual requirements or construction permits. Each passage of the valve body 20 may not penetrate the core peripheral wall 201 as long as communication between the passage and the port can be achieved.

In addition, in the above embodiments, the first to eighth ports 11 to 18 of the valve housing 10 may be uniformly arranged around the rotation center of the valve core 20, so that the rotation angle of the valve core 20 switching from one flow passage mode to another flow passage mode is substantially the same, and the control is convenient.

Referring to fig. 6, in the embodiment shown in fig. 6, the type, number and arrangement of the channels of the valve core 20 are the same as those of the embodiment shown in fig. 3 and 5, except that: the valve casing 10 is provided with eight ports, which are a first port 11, a second port 12, a third port 13, a fourth port 14, a fifth port 15, a sixth port 16, a seventh port 17 and an eighth port 18. Compared with the valve device shown in fig. 3 and 5, the valve housing 10 in the embodiment shown in fig. 6 does not have the ninth port, so that the valve device has 8 flow passage modes under the condition that the valve core 20 has the same structure, the 8 flow passage modes are as shown in fig. 7-1 to 7-8, the rotation of the valve core 20 causes the ports of the valve housing 10 communicated with the passages of the valve core 20 to be different, so that the formed flow passage modes are different, and the flow passage condition in each flow passage mode is understood by referring to fig. 7-1 to 7-8, and is not described in detail. In this embodiment, eight interfaces of the valve housing 10 are also evenly arranged on a circumference around the rotation center of the valve core 20, so that the valve core 20 can realize the switching of a flow channel mode when rotating the same angle, and certainly, during actual setting, the interfaces can also be unevenly arranged, and specifically according to the requirement, the channel matching of the valve core 20 can be set.

Referring to fig. 8, the embodiment shown in fig. 8 comprises two valve parts connected in series, the first valve part having a configuration identical to that of the valve device shown in fig. 6, and the second valve part being a proportional three-way valve 40, it being understood that the embodiment shown in fig. 8 is based on the embodiment shown in fig. 6, in which a proportional three-way valve is connected in series.

In fig. 8, the proportional three-way valve is connected in series to the fifth port 15 of the valve housing 10, the fifth port 15 is communicated with the first port 41 of the proportional three-way valve 40, and in the flow path mode state shown in fig. 8, after the eighth port 18 is communicated with the fifth port 15 through the first passage 21, depending on the adjustment state of the proportional three-way valve, the fifth port 15 may be communicated with the second port 42 of the proportional three-way valve 40, that is, a flow path may be formed between the fifth port 15 and the second port 42, or may be communicated with the third port 43 of the proportional three-way valve 40, that is, a flow path may be formed between the fifth port 15 and the third port 43, or may be simultaneously communicated with the second port 42 and the third port 43. In contrast, the valve device shown in fig. 8 has substantially the same flow path pattern as the valve device shown in fig. 3, i.e., 24 flow path patterns, as can be understood with reference to fig. 4-1 to 4-24, and the 24 flow path patterns of the valve device of fig. 8 are not shown here.

While the specific structure of the valve device has been mainly described in the three embodiments, it can be understood that, in practical implementation, appropriate modifications may be made on the basis of the foregoing embodiments according to application requirements, for example, in the example shown in fig. 3, the ninth port 19 may be disposed beside any one of the first port 11 to the eighth port 18, and is not limited to the fifth port 15, and likewise, in the example shown in fig. 8, the proportional three-way valve 40 may be connected in series to any one of the first port 11 to the eighth port 18, and is not limited to the fifth port 15; for another example, if the structure allows, in the example shown in fig. 3, a port similar to the ninth port may be provided beside several of the first port 11 to the eighth port 18, so that more flow channel patterns are formed.

In another aspect, embodiments of the present application provide a thermal management system, which includes a plurality of circulation loops, and a valve device shared by the plurality of circulation loops, where the valve device is the valve device described in the foregoing embodiments. The heat management system realizes the connection of a plurality of circulation loops through one valve device, the pipeline interfaces are concentrated, the pipeline connection distance can be shortened, the pipeline arrangement is simplified, and the miniaturization of the system is facilitated. In addition, the valve device has multiple modes to meet the requirements of the thermal management system.

On the other hand, the embodiment of the application provides an electric vehicle, which comprises the thermal management system, different modes can be switched according to different thermal management requirements, and the reduction of energy consumption and cost of thermal management is facilitated.

The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims (13)

1. A valve assembly comprising a valve housing and a valve core; the valve core can rotate relative to the valve shell;

the valve shell is provided with a plurality of interfaces which are arranged around the rotation center of the valve core;

the valve core is provided with a plurality of channels which are not communicated with each other, and the projections of the channels in a plane vertical to the rotation central axis of the valve core are not crossed with each other; each passage of the valve spool is used to communicate with at least two ports of the valve housing.

2. The valve arrangement of claim 1, wherein the plurality of passages of the spool are in the same plane.

3. The valve apparatus of claim 2, wherein the plurality of channels includes a first channel and a second channel, the inlet end of the first channel communicating with a port that is not adjacent to the outlet end of the first channel, and the inlet end of the second channel communicating with a port that is adjacent to the outlet end of the second channel.

4. A valve arrangement according to claim 3, wherein one side of said first channel is provided with one said second channel and the other side is provided with at least one said second channel.

5. A valve arrangement according to claim 4, wherein two of said second passages are provided on the other side of said first passage.

6. The valve arrangement according to any one of claims 1-5, wherein said valve housing has a shell wall portion that is perpendicular to a central axis of rotation of said valve core, at least some of said plurality of ports being provided in said shell wall portion.

7. The valve arrangement according to any one of claims 1-5, wherein said spool is of cylindrical configuration and said plurality of passages comprises curved passages through a peripheral wall of said spool or curved passages through an end wall of said spool.

8. The valve apparatus as claimed in any one of claims 1 to 5, wherein said plurality of ports comprises no more than nine ports and said plurality of channels comprises no more than four channels.

9. The valve apparatus of claim 8, wherein the plurality of ports comprises nine ports, eight of which are evenly arranged about a center of rotation of the spool, the ninth port being located to the side of one of the eight ports.

10. The valve arrangement of claim 8, wherein the plurality of ports includes eight ports evenly arranged about a center of rotation of the spool.

11. The valve arrangement according to claim 10, further comprising a proportional three-way valve in series with one of the eight ports.

12. A thermal management system comprising a plurality of circulation loops, wherein said plurality of circulation loops share a valve device according to any one of claims 1 to 11.

13. An electric vehicle comprising the thermal management system of claim 12.

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