Valve device, air conditioning system and vehicle thermal management system

Abstract

The invention provides a valve device, an air conditioning system and a vehicle heat management system. The valve device comprises a valve seat, a first valve element and a second valve element. A plurality of first valve ports and second valve ports are formed in the circumferential outer wall of the valve seat, a first valve element is installed at one end of the valve seat, a second valve element is installed at the other end of the valve seat, and the first valve element and the second valve element are rotationally arranged in the valve seat; a plurality of first communicating structures are arranged in the circumferential direction of the first valve element, a plurality of second communicating structures are arranged in the circumferential direction of the second valve element, and the first valve element and the second valve element are each provided with a plurality of rotating positions so that the first valve ports can communicate with the different first communicating structures. And the plurality of second valve ports are respectively communicated with different second conduction structures. Only one valve device is arranged to be connected with a plurality of external components, and by adjusting the position of the valve element, the requirement for additional valves and pipelines can be reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of multi-way valves, and in particular relates to a valve device, an air conditioning system and a vehicle thermal management system. Background Art

[0002] With the continuous development of new energy vehicles, the thermal management system of vehicles has become more and more complex. The thermal management system of vehicles usually integrates several major parts such as the cabin, battery, motor and electronic control, and realizes heat exchange through refrigerant fluid, so that each functional area is within the target temperature range. During the operation of the thermal management system of the vehicle, the switching between different pipelines often uses three-way valves, four-way valves or other water valve combinations, which makes the overall system arranged with a large number of valves, the system pipeline design is complex and requires a large assembly space, and there are also problems such as complex operation and high risk of air leakage. Summary of the invention

[0003] The present invention provides a valve device, an air conditioning system and a vehicle thermal management system, which can solve the technical problems that the existing switching between different pipelines mostly uses three-way valves, four-way valves or other water valve combinations, the system pipeline design is complex and requires a large assembly space.

[0004] The present invention provides a valve device, which includes a valve seat, a first valve core and a second valve core;

[0005] A plurality of first valve ports and a second valve port are arranged on the circumferential outer wall of the valve seat, the first valve core is installed at one end of the valve seat, and the second valve core is installed at the other end of the valve seat, and the first valve core and the second valve core are rotatably arranged in the valve seat respectively;

[0006] A plurality of first conducting structures are arranged in the circumferential direction of the first valve core, and the first conducting structures are used to connect at least two of the first valve ports; a plurality of second conducting structures are arranged in the circumferential direction of the second valve core, and the second conducting structures are used to connect at least two of the second valve ports;

[0007] The first valve core and the second valve core have a plurality of rotation positions respectively, so that the plurality of first valve ports are respectively communicated with different first conducting structures, and the plurality of second valve ports are respectively communicated with different second conducting structures.

[0008] In some embodiments, the first conducting structure is connected to the two first valve ports, and with the expanded surface of the first valve core in the circumferential direction as the projection surface, part of the first conducting structure is arranged horizontally, and the two first valve ports are arranged side by side; part of the first conducting structure is arranged vertically, and the two first valve ports are arranged in the same row.

[0009] In some embodiments, the first conducting structure is a first groove, which runs through the circumferential outer wall of the first valve core, one end of the first groove is connected to one of the first valve ports, and the other end of the first groove is connected to one of the first valve ports, forming a first channel between the two first valve ports.

[0010] In some embodiments, along the axial direction of the first valve core, a plurality of first blind holes are opened on the first valve core, and the expanded surface of the first valve core in the circumferential direction is used as the projection surface. The first blind hole has a blocking surface, and the blocking surface is arranged adjacent to the first conducting structure, and the blocking surface is used to block the first valve port.

[0011] In some embodiments, taking the development surface of the first valve core in the circumferential direction as the projection surface, the first valve core has a first wall surface, a second wall surface and a third wall surface that are sequentially developed;

[0012] The first wall surface comprises a first first conducting structure, a second first conducting structure, a first first blind hole, a second first blind hole and a first connecting hole; the first first conducting structure, the first first blind hole and the second first conducting structure are arranged side by side, and the first first conducting structure and the second first conducting structure are arranged vertically; the first first conducting structure is provided with a second first blind hole in a vertical direction, and the first first blind hole is provided with a first connecting hole in a vertical direction, one end of the first connecting hole passes through the circumferential outer wall of the first valve core, and the other end of the first connecting hole passes through the bottom wall of the first valve core, the second first conducting structure is provided with a third first conducting structure in a vertical direction, the third first conducting structure is arranged horizontally, the first end of the third first conducting structure extends to the first wall surface and passes through the bottom wall of the first valve core, and the second end of the third first conducting structure extends to the second wall surface;

[0013] The second wall surface includes a fourth first conductive structure, a fifth first conductive structure, a sixth first conductive structure and a third first blind hole; the third first blind hole and the fourth first conductive structure are arranged side by side, the second end of the third first conductive structure is located in the vertical direction of the third first blind hole, the fourth first conductive structure is arranged horizontally, the fifth first conductive structure and the sixth first conductive structure are arranged vertically in the vertical direction of the fourth first conductive structure, and the fifth first conductive structure and the sixth first conductive structure are arranged side by side;

[0014] The third wall surface includes a seventh first conductive structure, an eighth first conductive structure, a ninth first conductive structure, a fourth first blind hole, and a fifth first blind hole; the seventh first conductive structure and the fourth first blind hole are arranged side by side, the seventh first conductive structure is arranged horizontally, the eighth first conductive structure is arranged in the vertical direction of the seventh first conductive structure, and the eighth first conductive structure is arranged vertically; the ninth first conductive structure and the fifth first blind hole are arranged side by side, the first end of the ninth first conductive structure and the first end of the fifth first blind hole extend toward the eighth first conductive structure, and the second end of the ninth first conductive structure and the second end of the fifth first blind hole extend toward the vertical direction of the fourth first blind hole.

[0015] In some embodiments, the second conducting structure is connected to the two second valve ports, and with the expanded surface of the second valve core in the circumferential direction as the projection surface, part of the second conducting structure is arranged horizontally, and the two second valve ports are arranged side by side; part of the second conducting structure is arranged vertically, and the two second valve ports are arranged in the same row.

[0016] In some embodiments, the second conducting structure is a second groove, which runs through the circumferential outer wall of the second valve core, one end of the second groove is connected to one of the second valve ports, and the other end of the second groove is connected to one of the second valve ports, forming a second channel between the two second valve ports.

[0017] In some embodiments, taking the development surface of the second valve core in the circumferential direction as the projection surface, the second valve core has a fourth wall surface, a fifth wall surface and a sixth wall surface which are developed in sequence;

[0018] The fourth wall surface includes a first second conductive structure, a second second conductive structure, and a third second conductive structure; the first second conductive structure and the second second conductive structure are arranged side by side, the first second conductive structure is arranged vertically, the second second conductive structure is arranged horizontally, the third second conductive structure is arranged in the vertical direction of the second second conductive structure, and the third second conductive structure is arranged horizontally;

[0019] The fifth wall surface includes a fourth second conductive structure, a fifth second conductive structure and a sixth second conductive structure; the fourth second conductive structure, the fifth second conductive structure and the sixth second conductive structure are arranged side by side in sequence, and the fourth second conductive structure, the fifth second conductive structure and the sixth second conductive structure are all arranged vertically;

[0020] The sixth wall surface includes the seventh second-in-one conducting structure, a second blind hole and two second connecting holes; the two second connecting holes and the second blind hole are arranged side by side in sequence, one end of the two second connecting holes respectively penetrates the circumferential outer wall of the second valve core, and the other end of the two second connecting holes respectively penetrates the top wall of the second valve core; the seventh second-in-one conducting structure is arranged horizontally, the first end of the seventh second-in-one conducting structure extends in the vertical direction of one of the second-in-one connecting holes, and the second end of the seventh second-in-one conducting structure extends in the vertical direction of another second-in-one connecting hole.

[0021] In some embodiments, the valve device is a fourteen-way valve, and the circumferential outer wall of the valve seat has a first mounting surface and a second mounting surface, the first mounting surface is provided with nine first valve ports in an array, and the second mounting surface is provided with six second valve ports in an array.

[0022] In some embodiments, a middle diaphragm is provided in the valve seat, and the middle diaphragm divides the inner cavity of the valve seat into a first chamber and a second chamber, the first valve core is installed in the first chamber, and the second valve core is installed in the second chamber;

[0023] At least one first communicating hole is also provided in the circumferential direction of the first valve core, one end of the first communicating hole passes through the circumferential outer wall of the first valve core, and the other end of the first communicating hole passes into the first valve core and extends to the middle partition plate; at least one second communicating hole is also provided in the circumferential direction of the second valve core, one end of the second communicating hole passes through the circumferential outer wall of the second valve core, and the other end of the second communicating hole passes into the second valve core and extends to the middle partition plate; an axial through hole is provided on the middle partition plate, and the first communicating hole and the second communicating hole are respectively connected to the axial through hole.

[0024] An air conditioning system comprises a valve device, wherein the valve device is the valve device mentioned above.

[0025] A vehicle thermal management system includes a valve device, wherein the valve device is the valve device mentioned above.

[0026] A valve device, an air conditioning system and a vehicle thermal management system provided by the present invention have the following beneficial effects:

[0027] The present invention has one valve seat with two valve cores, and the two valve cores can be rotated separately, so as to flexibly control the connection state of multiple first valve ports and second valve ports with corresponding conduction structures. According to different air conditioner operation modes, the first valve core and the second valve core can be rotated to different rotation positions, so that the valve ports and conduction structures that need to be connected with the component interface can be connected, thereby improving the adaptability and flexibility of the system. Compared with the combination of three-way valves, four-way valves or other water valves used for switching between different pipelines, the present invention can be connected to multiple external components by only setting one valve device. By adjusting the position of the valve core, the need for additional valves and pipelines can be reduced, the system design can be simplified, and the cost and maintenance difficulty can be reduced. In addition, in the present invention, by cooperating with the conduction structure set on the valve core and the valve port on the valve seat, the flow direction of the fluid can be accurately controlled to ensure that the fluid flows according to the predetermined path, and the setting of multiple valve ports and conduction structures can form multiple fluid channels at the same time, which increases the flexibility and controllability of the system, and by accurately controlling the connection state of the valve port and the conduction structure, the risk of fluid leakage can be reduced, and the sealing and reliability of the system can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0029] Figure 1 is a schematic diagram of a valve device according to an embodiment of the present invention;

[0030] Figure 2 is a cross-sectional view of a valve device according to an embodiment of the present invention;

[0031] Figure 3 is a schematic diagram of a valve seat according to an embodiment of the present invention;

[0032] Figure 4 for Figure 3 Schematic diagram of section A;

[0033] Figure 5 for Figure 3 Schematic diagram of section B;

[0034] Figure 6 is a schematic diagram of a first valve core according to an embodiment of the present invention;

[0035] Figure 7 is a top view of a first valve core according to an embodiment of the present invention;

[0036] Figure 8 for Figure 6Schematic diagram of section C;

[0037] Fig. 9 for Figure 6 Schematic diagram of section D;

[0038] Fig.10 for Figure 6 Schematic diagram of section E;

[0039] Fig.11 is a schematic diagram of an expanded view of a first valve core;

[0040] Fig.12 is a schematic diagram of a second valve core according to an embodiment of the present invention;

[0041] Fig.13 A top view of the second valve core according to an embodiment of the present invention

[0042] Fig.14 Fig.12 Schematic diagram of section I;

[0043] Fig.15 Fig.12 Schematic diagram of section J;

[0044] Fig.16 Fig.12 Schematic diagram of section K;

[0045] Fig.17 is a schematic diagram of an expanded view of a second valve core;

[0046] Fig.18 is a schematic diagram of an air conditioning system according to an embodiment of the present invention;

[0047] Fig.19 A schematic diagram of the first valve core and the second valve core being deployed and a schematic diagram of the first valve port and the second valve port being connected in the first mode of an embodiment of the present invention;

[0048] Fig. 20 A schematic diagram of the first valve core and the second valve core being deployed and a schematic diagram of the first valve port and the second valve port being connected in the second mode of the embodiment of the present invention;

[0049] Fig.21 A schematic diagram of the first valve core and the second valve core being deployed and a schematic diagram of the first valve port and the second valve port being connected in the third mode of the embodiment of the present invention;

[0050] Fig. 22 A schematic diagram of the first valve core and the second valve core being deployed and a schematic diagram of the first valve port and the second valve port being connected in the fourth mode of the embodiment of the present invention;

[0051] Fig.23 A schematic diagram of the first valve core and the second valve core being deployed and a schematic diagram of the first valve port and the second valve port being connected in the fifth mode of the embodiment of the present invention;

[0052] Fig.24 A schematic diagram of the first valve core and the second valve core being deployed and a schematic diagram of the first valve port and the second valve port being connected in the sixth mode of the embodiment of the present invention;

[0053] Figure: 1-first valve core; 11-first wall; 12-second wall; 13-third wall; 101-first conduction structure; 102-first blind hole; 103-first connecting hole; 2-second valve core; 21-fourth wall; 22-fifth wall; 23-sixth wall; 201-second conduction structure; 202-second blind hole; 203-second connecting hole; 3-valve seat; 31-first valve port; 32-second Valve port; 301-first mounting surface; 302-second mounting surface; 303-middle partition; 331-axial through hole; 41-first actuator; 42-second actuator; 51-compressor; 52-evaporation side heat exchanger; 53-condensation side heat exchanger; 54-throttle valve; 55-out-of-vehicle heat exchanger; 56-water tank; 57-motor electronic control end; 58-battery; 59-first in-vehicle heat exchanger; 60-second in-vehicle heat exchanger. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0056] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0057] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0058] See also Figures 1 to 11 As shown, according to an embodiment of the present invention, a valve device is provided, which includes a valve seat 3, a first valve core 1 and a second valve core 2; a plurality of first valve ports 31 and a second valve port 32 are arranged on the circumferential outer wall of the valve seat 3, the first valve core 1 is installed at one end of the valve seat 3, and the second valve core 2 is installed at the other end of the valve seat 3, and the first valve core 1 and the second valve core 2 are respectively rotatably arranged in the valve seat 3; a plurality of first conducting structures 101 are arranged in the circumferential direction of the first valve core 1, and the first conducting structure 101 is used to connect at least two first valve ports 31; a plurality of second conducting structures 201 are arranged in the circumferential direction of the second valve core 2, and the second conducting structure 201 is used to connect at least two second valve ports 32; the first valve core 1 and the second valve core 2 respectively have a plurality of rotation positions, so that the plurality of first valve ports 31 are respectively connected with different first conducting structures 101, and the plurality of second valve ports 32 are respectively connected with different second conducting structures 201.

[0059] Specifically, the first valve core 1 can be rotated independently, and the second valve core 2 can also be rotated independently. When the first valve core 1 rotates clockwise or counterclockwise to the first rotation position, the plurality of first valve ports 31 are connected with the plurality of first conducting structures 101 in the circumferential direction of the first valve core 1. The first valve core 1 continues to rotate clockwise or counterclockwise by a certain angle. At this time, part or all of the first conducting structures 101 in the first rotation position rotate to the wall surface of the valve seat 3 where no valve port is provided, that is, part or all of the first conducting structures 101 in the first rotation position are not connected with the first valve ports 31, but are blocked. After the first valve core 1 continues to rotate clockwise or counterclockwise by a certain angle, it still rotates to the first conducting structures 101 corresponding to the plurality of first valve ports 31 and is connected. Similarly, the second valve The rotation mode of the core 2 is the same as that of the first valve core 1, but the rotation angle and direction may not be the same as those of the first valve core 1. When the second valve core 2 rotates clockwise or counterclockwise to the first rotation position, multiple second valve ports 32 are connected to multiple second conductive structures 201 in the circumferential direction of the second valve core 2. The second valve core 2 continues to rotate clockwise or counterclockwise by a certain angle. At this time, part or all of the second conductive structures 201 at the first rotation position rotate to the wall surface of the valve seat 3 where no valve port is opened, that is, part or all of the second conductive structures 201 at the first rotation position are not connected to the second valve ports 32, but are blocked. After the second valve core 2 continues to rotate clockwise or counterclockwise by a certain angle, it is still rotated to the second conductive structure 201 corresponding to the multiple second valve ports 32 and is conductive. Since multiple external component interfaces are connected to the first valve port 31 and the second valve port 32 respectively, not all of the first valve ports 31 and the second valve ports 32 need to be connected depending on the operating mode of the air conditioner. By rotating the first valve core 1 and the second valve core 2 to different rotation positions, the valve ports and the conducting structures that need to be connected to the component interfaces can be connected.

[0060] In this embodiment, one valve seat 3 is matched with two valve cores, and the two valve cores can be rotated separately, so as to flexibly control the connection state of multiple first valve ports 31 and second valve ports 32 with the corresponding conduction structure. According to different air conditioner operation modes, the first valve core 1 and the second valve core 2 can be rotated to different rotation positions, so that the valve ports and the conduction structure that need to be connected with the component interface can be connected, thereby improving the adaptability and flexibility of the system. Compared with the combination of three-way valves, four-way valves or other water valves used for switching between different pipelines, this embodiment can only set one valve device to connect with multiple external components. By adjusting the position of the valve core, the need for additional valves and pipelines can be reduced, the system design can be simplified, and the cost and maintenance difficulty can be reduced. In addition, in this embodiment, by cooperating with the conduction structure set on the valve core and the valve port on the valve seat 3, the flow direction of the fluid can be accurately controlled to ensure that the fluid flows according to the predetermined path, and the setting of multiple valve ports and conduction structures can form multiple fluid channels at the same time, which increases the flexibility and control ability of the system, and by accurately controlling the connection state of the valve port and the conduction structure, the risk of fluid leakage can be reduced, and the sealing and reliability of the system can be improved.

[0061] It is worth noting that the adjacent first conductive structures 101 are not mutually conductive in the axial direction and the circumferential direction, and similarly, the adjacent second conductive structures 201 are not mutually conductive in the axial direction and the circumferential direction, so that the conductive structures are isolated from each other. When the valve port is aligned with the conductive structure, the valve port is connected to the conductive structure, but not to the adjacent conductive structure, so as to ensure that the fluid does not flow between the conductive structures. In this embodiment, the first valve core 1 is driven by the first actuator 41, and the second valve core 2 is driven by the second actuator 42.

[0062] See also Figures 3 to 5 As shown, the valve device is a fourteen-way valve, and the circumferential outer wall of the valve seat 3 has a first mounting surface 301 and a second mounting surface 302 . Nine first valve ports 31 are arranged in an array on the first mounting surface 301 , and six second valve ports 32 are arranged in an array on the second mounting surface 302 .

[0063] Specifically, the valve seat 3 is a hollow structure, and the valve seat 3 includes a mounting plate and an annular shell that are connected to each other. The outer wall surface of the mounting plate is a plane. Specifically, the outer wall surface of the mounting plate has a first mounting surface 301 and a second mounting surface 302. The first valve port 31 and the second valve port 32 penetrate the mounting plate and communicate with the inner cavity of the annular shell. The nine first valve ports 31 are arranged in a manner of 3 rows and 3 columns, and the six second valve ports 32 are arranged in a manner of 2 rows and 3 columns. The first valve port 31 on the first mounting surface 301 cooperates with the first conduction structure 101 of the first valve core 1 to connect the two adjacent first valve ports 31, and the second valve port 32 on the second mounting surface 302 cooperates with the second conduction structure 201 of the second valve core 2 to connect the two adjacent second valve ports 32, thereby connecting the components of the air conditioning system and allowing the fluid to circulate between the components.

[0064] In this embodiment, a total of fifteen valve ports are set on the mounting plate, which can meet the connection of multiple interfaces. It is worth noting that the valve port setting on the valve seat 3 is defined based on the air-conditioning system schematic diagram provided in this embodiment, wherein two valve ports connected to the motor electronic control outlet are defined on the valve seat 3 mounting plate.

[0065] See also Figures 6 to 11 As shown, the first conduction structure 101 is connected to the two first valve ports 31. Taking the unfolded surface of the first valve core 1 in the circumferential direction as the projection surface, part of the first conduction structure 101 is arranged horizontally, and the two first valve ports 31 are arranged side by side; part of the first conduction structure 101 is arranged vertically, and the two first valve ports 31 are arranged in the same row.

[0066] Specifically, considering that the fluid usually flows from the outlet of one component to the inlet of another component during the circulation process, the first conductive structure 101 of the present embodiment is configured to be connected to two first valve ports 31. After the two first valve ports 31 are connected to the first conductive structure 101, one of the first valve ports 31 serves as the outlet interface of one component, and the other first valve port 31 serves as the inlet interface of another component. In this way, the outlet of one component in the fluid first flows into the first conductive structure 101, and then flows into the inlet interface of another component, thereby realizing the circulation of the fluid between the components through the valve device. Since the first valve core 1 of the present embodiment is provided with a plurality of first conducting structures 101 in the circumferential direction, when the first valve core 1 is unfolded in the circumferential direction, the unfolded surface is rectangular. During the rotation of the first valve core 1, the first conducting structure 101 may be arranged horizontally or vertically. When two adjacent first valve ports 31 are rotated to different rotation positions according to the first valve core 1, it is possible to realize that two first valve ports 31 are connected to one first conducting structure 101 side by side or two first valve ports 31 are connected to one first conducting structure 101 side by side. Even if only one first valve port 31 is connected to one conducting structure, this first valve port 31 does not need to be connected to the interface of the external component.

[0067] In this embodiment, through the first conductive structure 101 arranged horizontally and vertically, the path of the fluid can be flexibly configured as needed to realize complex fluid control logic, and more fluid channels can be realized in a limited space to improve space utilization. Moreover, the two first valve ports 31 are connected through a first conductive structure 101, which can reduce the resistance of the fluid in the system and improve the efficiency of fluid circulation. By optimizing the layout of the first conductive structure 101, this embodiment can reduce the number of valves required, simplify system design, reduce manufacturing and maintenance costs, ensure that the fluid flows smoothly from the outlet of one component to the inlet of another component, reduce the risk of fluid leakage, and improve the reliability of the system.

[0068] According to the conventional connection method of external components, usually the two valve ports are interconnected. As another implementation, the first conductive structure 101 and the second conductive structure 201 can also be connected to the conductive structure according to the fluid diversion requirement or fluid flow requirement, so that three valve ports or four valve ports are connected to the conductive structure to achieve fluid diversion or increase the flow of the fluid to one of the components.

[0069] See also Figures 6 to 11 As shown, the first conducting structure 101 is a first groove, which runs through the circumferential outer wall of the first valve core 1, one end of the first groove is connected to a first valve port 31, and the other end of the first groove is connected to a first valve port 31, forming a first channel between the two first valve ports 31.

[0070] Specifically, the first conducting structure 101 forms a first channel by grooving on the circumferential outer wall of the first valve core 1. Taking the cross section of the first valve core 1 as the projection surface, the first groove is provided with an arc-shaped chamfer to avoid dead angles. After the two ends of the first groove are respectively connected to the first valve ports 31, it is equivalent to that the inlet of the first channel extends to one of the first valve ports 31, and the outlet of the first channel extends to the other first valve port 31.

[0071] In this embodiment, the first groove is combined with the setting of the two first valve ports 31 to connect the two first valve ports 31 into a channel, thereby optimizing the flow path of the fluid, reducing the flow resistance, and thus improving the efficiency of the fluid circulation. Moreover, the setting of the groove can provide a better sealing effect, reduce the risk of fluid leakage, and improve the reliability of the system. The opening of the first groove can be fully connected with the first valve port 31 to ensure that during the rotation of the first valve core 1, the first valve port 31 is more easily connected with the first conducting structure 101.

[0072] See also Figures 6 to 11As shown, along the axial direction of the first valve core 1, a plurality of first blind holes 102 are opened on the first valve core 1, and taking the unfolded surface of the first valve core 1 in the circumferential direction as the projection surface, the first blind hole 102 has a blocking surface, which is arranged adjacent to the first conducting structure 101, and the blocking surface is used to block the first valve port 31.

[0073] Specifically, since there are many first valve ports 31 arranged on the first mounting surface 301, that is, there are many combinations of the first conductive structure 101 and there are more ways of connecting the first valve ports 31 and the first conductive structure 101, in this embodiment, a plurality of first blind holes 102 are opened on the first valve core 1, and the first blind holes 102 are opened from the axial direction of the first valve core 1 to the inside of the first valve core 1, that is, the first blind holes 102 do not penetrate the circumferential outer wall of the first valve core 1, but form a blocking surface, when the first valve port 31 rotates to the blocking surface, the first valve port 31 cannot be connected to the inside of the first blind hole 102, thereby blocking the first valve port 31. The first blind hole 102 and the first conductive structure 101 are arranged adjacent to each other, that is, the first conductive structure 101 is connected to the first valve port 31, and the first blind hole 102 can block the unnecessary first valve port 31 according to the connection requirements of the external components.

[0074] In this embodiment, the blocking surface of the first blind hole 102 can accurately control the flow direction of the fluid, and the precise guidance of the fluid in the system is achieved by blocking or opening the first valve port 31. The first valve port 31 is blocked by the blocking surface of the first blind hole 102, which enhances the sealing of the system, reduces the risk of fluid leakage, and improves the reliability of the system. In addition, the cooperation between the first blind hole 102 and the first conductive structure 101 allows the fluid to flow efficiently between components, reduces the resistance to fluid flow, and improves the efficiency of fluid flow. It is not necessary to be limited to the direct alignment of the first valve port 31, and provides more adjustment freedom.

[0075] See also Figures 6 to 11As shown, taking the development surface of the first valve core 1 in the circumferential direction as the projection surface, the first valve core 1 has a first wall surface 11, a second wall surface 12 and a third wall surface 13 which are developed in sequence; the first wall surface 11 includes a first first conductive structure T11, a second first conductive structure T12, a first first blind hole M11, a second first blind hole M12 and a first connecting hole 103; the first first conductive structure T11, the first first blind hole M11 and the second first conductive structure T12 are arranged side by side, and the first first conductive structure T11 and the second first conductive structure T12 are arranged vertically; the first first conductive structure T11, the first first blind hole M11 and the second first conductive structure T12 are arranged side by side. A second first blind hole M12 is provided in the vertical direction of the structure T11, a first communicating hole 103 is provided in the vertical direction of the first first blind hole M11, one end of the first communicating hole 103 passes through the circumferential outer wall of the first valve core 1, and the other end of the first communicating hole 102 passes through the bottom wall of the first valve core 1, a third first conducting structure T13 is provided in the vertical direction of the second first conducting structure T12, the third first conducting structure T13 is arranged horizontally, a first end of the third first conducting structure T13 extends to the first wall surface 11, and a second end of the third first conducting structure T13 extends to the second wall surface 12;

[0076] See also Figures 6 to 11 As shown, the second wall surface 12 includes a fourth first conductive structure T14, a fifth first conductive structure T15, a sixth first conductive structure T16 and a third first blind hole M13; the third first blind hole M13 and the fourth first conductive structure T14 are arranged side by side, the second end of the third first conductive structure T13 is located in the vertical direction of the third first blind hole M13, the fourth first conductive structure T14 is arranged horizontally, and the fifth first conductive structure T15 and the sixth first conductive structure T16 are arranged vertically in the vertical direction of the fourth first conductive structure T14, and the fifth first conductive structure T15 and the sixth first conductive structure T16 are arranged side by side;

[0077] See also Figures 6 to 11As shown, the third wall 13 includes a seventh first conductive structure T17, an eighth first conductive structure T18, a ninth first conductive structure T19, a fourth first blind hole M14, and a fifth first blind hole M15; the seventh first conductive structure T17 and the fourth first blind hole M14 are arranged side by side, the seventh first conductive structure T17 is arranged horizontally, the eighth first conductive structure T18 is arranged in the vertical direction of the seventh first conductive structure T17, and the eighth first conductive structure T18 is arranged vertically; the ninth first conductive structure T19 and the fifth first blind hole M15 are arranged side by side, the first end of the ninth first conductive structure T19 and the first end of the fifth first blind hole M15 extend toward the eighth first conductive structure T18, and the second end of the ninth first conductive structure T19 and the second end of the fifth first blind hole M15 extend toward the vertical direction of the fourth first blind hole M14.

[0078] Specifically, the first conductive structure 101, the first blind hole 102 and the first connecting hole 103 on the first wall surface 11, the second wall surface 12 and the third wall surface 13 make full use of the structural characteristics of the first valve core 1, and the first valve port 31 is aligned with the first conductive structure 101, the first blind hole 102 and the first connecting hole 103 by rotation. The arrangement of the first conductive structure 101, the first blind hole 102 and the first connecting hole 103 on the first wall surface 11, the second wall surface 12 and the third wall surface 13 of this embodiment is arranged according to the number of connections and the conductive characteristics of the external components, and such an arrangement enables the air conditioning system to adjust the rotation position of the first valve core 1 according to different modes.

[0079] In this embodiment, by setting multiple conducting structures and blind holes on different wall surfaces, complex fluid control logic can be implemented to meet diverse fluid flow requirements. This arrangement can effectively distribute the fluid from multiple inlets to multiple outlets flexibly, thereby improving the efficiency and flexibility of fluid distribution, realizing more fluid channels in a limited space, and improving space utilization. Moreover, this arrangement makes the various parts of the valve core more modular, which is convenient for maintenance personnel to perform maintenance and inspection.

[0080] It is worth noting that, in the process of rotating the first valve core 1, it is not necessary to completely align the first wall surface 11, the second wall surface 12 or the third wall surface 13 with the first mounting surface 301. In this embodiment, the unfolded surface of the first valve core 1 is divided into three wall surfaces in order to more clearly describe the arrangement of the first conductive structure 101, the first blind hole 102 and the first connecting hole 103. In addition, the size of the area aligned with the first mounting surface 301 when the first valve core 1 rotates to different rotation positions is similar to the size of the area of ​​each wall surface, that is, the circumferential outer wall of the first valve core 1 is aligned with the first mounting surface 301 by rolling clockwise or counterclockwise.

[0081] See also Figures 12 to 17 As shown, the second conduction structure 201 is connected to the two second valve ports 32. Taking the expanded surface of the second valve core 2 in the circumferential direction as the projection surface, part of the second conduction structure 201 is arranged horizontally, and the two second valve ports 32 are arranged side by side; part of the second conduction structure 201 is arranged vertically, and the two second valve ports 32 are arranged in the same row.

[0082] Specifically, the second conductive structure 201 is configured the same as the first conductive structure 101. Similarly, the second conductive structure 201 is configured in this way considering that the fluid usually flows from the outlet of one component to the inlet of another component during the circulation process. The second conductive structure 201 of this embodiment is configured to be connected to two second valve ports 32. After the two second valve ports 32 are connected to the second conductive structure 201, one of the second valve ports 32 serves as the outlet interface of one component, and the other second valve port 32 serves as the inlet interface of another component. In this way, the fluid first flows from the outlet of one component into the second conductive structure 201, and then flows into the inlet interface of another component, thereby realizing the fluid circulation between the components through the valve device. Since the second valve core 2 of the present embodiment is provided with a plurality of second conducting structures 201 in the circumferential direction, when the second valve core 2 is unfolded in the circumferential direction, the unfolded surface is rectangular. In the process of rotating the second valve core 2, the second conducting structure 201 may be arranged horizontally or vertically. When two adjacent second valve ports 32 are rotated to different rotation positions according to the second valve core 2, it is possible to realize that two second valve ports 32 are connected to one second conducting structure 201 side by side or two second valve ports 32 are connected to one second conducting structure 201 side by side. Even if only one second valve port 32 is connected to one conducting structure, this second valve port 32 does not need to be connected to the interface of the external component.

[0083] In this embodiment, through the second conductive structure 201 arranged horizontally and vertically, the path of the fluid can be flexibly configured as needed to realize complex fluid control logic, and more fluid channels can be realized in a limited space to improve space utilization. Moreover, the two second valve ports 32 are connected through a second conductive structure 201, which can reduce the resistance of the fluid in the system and improve the efficiency of fluid circulation. By optimizing the layout of the second conductive structure 201, this embodiment can reduce the number of valves required, simplify system design, reduce manufacturing and maintenance costs, ensure that the fluid flows smoothly from the outlet of one component to the inlet of another component, reduce the risk of fluid leakage, and improve the reliability of the system.

[0084] See also Figures 12 to 17 As shown, the second conducting structure 201 is a second groove, which runs through the circumferential outer wall of the second valve core 2, one end of the second groove is connected to a second valve port 32, and the other end of the second groove is connected to a second valve port 32, forming a second channel between the two second valve ports 32.

[0085] Specifically, the second conducting structure 201 forms a second channel by grooving on the circumferential outer wall of the second valve core 2. With the cross section of the second valve core 2 as the projection surface, the second groove is provided with an arc-shaped chamfer to avoid dead angles. After the two ends of the second groove are respectively connected to the second valve ports 32, it is equivalent to that the inlet of the second channel extends to one of the second valve ports 32, and the outlet of the second channel extends to the other valve port.

[0086] In this embodiment, the second groove combined with the setting of the two second valve ports 32 can connect the two second valve ports 32 into a channel, optimize the flow path of the fluid, reduce the flow resistance, and thus improve the efficiency of the fluid circulation. Moreover, the setting of the groove can provide a better sealing effect, reduce the risk of fluid leakage, and improve the reliability of the system. The opening of the second groove can be fully connected with the second valve port 32 to ensure that during the rotation of the second valve core 2, the second valve port 32 is more easily connected to the second conducting structure 201.

[0087] As a specific implementation, the first conductive structure 101 and the second conductive structure 201 are both groove structures. The function of the conductive structure is to connect the two valve ports. In other embodiments, a through hole can be opened on the circumferential outer wall of the valve core, one end of the through hole passes through the circumferential outer wall of the valve core, and the other end of the through hole passes into the valve core for a certain length and then passes through the circumferential outer wall of the valve core. From the circumferential outer wall of the valve core, it seems that two holes are formed on the circumferential outer wall of the first valve core 1, but a channel is formed inside the valve core. One valve port can be connected to one of the holes, and the other first valve port 31 is connected to the other hole. A first conductive structure 101 can also be formed on the first valve core 1. In other embodiments, both the conductive structures formed by opening holes and the conductive structures formed by groove structures can be adopted, and the two methods can be flexibly arranged at intervals.

[0088] See also Figures 12 to 17 As shown, taking the unfolded surface of the second valve core 2 in the circumferential direction as the projection surface, the second valve core 2 has a fourth wall 21, a fifth wall 22 and a sixth wall 23 unfolded in sequence; the fourth wall 21 includes a first second conductive structure T21, a second second conductive structure T22 and a third second conductive structure T23; the first second conductive structure T21 and the second second conductive structure T22 are arranged side by side, the first second conductive structure T21 is arranged vertically, the second second conductive structure T22 is arranged horizontally, the third second conductive structure T23 is arranged in the vertical direction of the second second conductive structure T22, and the third second conductive structure T23 is arranged horizontally.

[0089] See also Figures 12 to 17As shown, the fifth wall 22 includes a fourth second conductive structure T24, a fifth second conductive structure T25 and a sixth second conductive structure T26; the fourth second conductive structure T24, the fifth second conductive structure T25 and the sixth second conductive structure T26 are arranged side by side in sequence, and the fourth second conductive structure T24, the fifth second conductive structure T25 and the sixth second conductive structure T26 are all arranged vertically.

[0090] See also Figures 12 to 17 As shown, the sixth wall surface 23 includes a seventh second conductive structure T27, a second blind hole 202 and two second connecting holes 203; the two second connecting holes 203 and the second blind hole 202 are arranged side by side in sequence, one end of the two second connecting holes 203 respectively penetrates the circumferential outer wall of the second valve core 2, and the other ends of the two second connecting holes 203 respectively penetrate the top wall of the second valve core 2; the seventh second conductive structure T27 is arranged horizontally, the first end of the seventh second conductive structure T27 extends in the vertical direction of one of the second connecting holes 203, and the second end of the seventh second conductive structure T27 extends in the vertical direction of the other second connecting hole 203. It is worth noting that the extension here refers to the extension direction of the end of the second conductive structure 201, and the seventh second conductive structure T27 is not connected with the second connecting hole 203.

[0091] Specifically, since the number of the second valve ports 32 arranged on the second mounting surface 302 is less than the number of the first valve ports 31 on the first mounting surface 301, the arrangement of the second valve ports 32 on the second mounting surface 302 is also relatively simple, and the second conducting structure 201, the second blind hole 202 and the second connecting hole 203 on the fourth wall 21, the fifth wall 22 and the sixth wall 23 make full use of the structural characteristics of the second valve core 2, and the second valve port 32 is aligned with the second conducting structure 201, the second blind hole 202 and the second connecting hole 203 by rotation. The arrangement of the second conducting structure 201, the second blind hole 202 and the second connecting hole 203 on the fourth wall 21, the fifth wall 22 and the sixth wall 23 of this embodiment is arranged according to the number of connections and the conducting characteristics of the external components, and such an arrangement enables the air conditioning system to adjust the rotation position of the first valve core 1 according to different modes.

[0092] In this embodiment, by setting multiple conducting structures and blind holes on different wall surfaces, complex fluid control logic can be implemented to meet diverse fluid flow requirements. This arrangement can effectively distribute the fluid from multiple inlets to multiple outlets flexibly, thereby improving the efficiency and flexibility of fluid distribution, realizing more fluid channels in a limited space, and improving space utilization. Moreover, this arrangement makes the various parts of the valve core more modular, which is convenient for maintenance personnel to perform maintenance and inspection.

[0093] It is worth noting that, in the process of rotating the second valve core 2, it is not necessary to completely align the fourth wall surface 21, the fifth wall surface 22 or the sixth wall surface 23 with the second mounting surface 302. In order to more clearly describe the arrangement of the second conductive structure 201, the second blind hole 202 and the arrangement of the second connecting hole 203, the unfolded surface of the second valve core 2 is divided into three wall surfaces. In addition, when the second valve core 2 is rotated to different rotation positions, the size of the area aligned with the second mounting surface 302 is similar to the size of the area of ​​each wall surface, that is, the circumferential outer wall of the second valve core 2 is aligned with the second mounting surface 302 by rolling clockwise or counterclockwise.

[0094] As a specific implementation manner, along the axial direction of the valve seat 3, the length of the first valve core 1 is greater than that of the second valve core 2. In the present embodiment, the length and width of the first groove and the second groove are the same. In addition to the vertical first groove provided on the first wall 11, the second wall 12 and the third wall 13 of the first valve core 1, a first blind hole 102 or a first groove may be horizontally arranged in the vertical direction of the first groove. Since the length of the second valve core 2 is shorter than that of the first valve core 1, when the second groove provided on the fourth wall 21, the fifth wall 22 and the sixth wall 23 of the second valve core 2 is vertically arranged, a second blind hole 202 or a second groove is no longer arranged in the vertical direction of the second groove.

[0095] As a specific implementation manner, when the first valve core 1 has a first wall 11, a second wall 12 and a third wall 13 which are unfolded in sequence, and the second valve core 2 has a fourth wall 21, a fifth wall 22 and a sixth wall 23 which are unfolded in sequence, the first conductive structure 101 and the second conductive structure 201 are both groove structures, and the arrangement of multiple first conductive structures 101, multiple second conductive structures 201, multiple first blind holes 102, multiple second blind holes 202, first connecting holes 103 and second connecting holes 203 on the wall is the optimal arrangement of this embodiment, and this arrangement can meet the different operating modes of the air-conditioning system.

[0096] See also Figures 1 to 17As shown, a middle partition 303 is provided in the valve seat 3, and the middle partition 303 divides the inner cavity of the valve seat 3 into a first chamber and a second chamber, the first valve core 1 is installed in the first chamber, and the second valve core 2 is installed in the second chamber; at least one first connecting hole 103 is also provided in the circumferential direction of the first valve core 1, one end of the first connecting hole 103 passes through the circumferential outer wall of the first valve core 1, and the other end of the first connecting hole 103 passes into the first valve core 1 and extends to the middle partition 303; at least one second connecting hole 203 is also provided in the circumferential direction of the second valve core 2, one end of the second connecting hole 203 passes through the circumferential outer wall of the second valve core 2, and the other end of the second connecting hole 203 passes into the second valve core 2 and extends to the middle partition 303; an axial through hole 331 is provided on the middle partition 303, and the first connecting hole 103 and the second connecting hole 203 are respectively connected to the axial through hole 331.

[0097] Specifically, in this embodiment, the first connecting hole 103 is provided on the first wall surface 11, and the second connecting hole 203 is provided on the sixth wall surface 23. Specifically, the first end of the third first conducting structure T13 is also substantially the first connecting hole 103. The third first conducting structure T13 is not only a groove structure, but the first end of the third first conducting structure T13 penetrates the bottom wall of the first valve core 1 in the axial direction. In the process of rotating the first valve core 1 and the second valve core 2, when the first connecting hole 103 on the first valve core 1 and the second connecting hole 203 on the second valve core 2 are both connected with the axial through hole 331 on the middle partition plate 303, an axial channel is formed inside the first valve core 1 and the second valve core 2, that is, in the vertical direction, a first valve port 31 is connected with a second valve port 32 through the axial channel, so as to realize the connection between the two valve cores.

[0098] In this embodiment, the connecting hole allows the first valve core 1 and the second valve core 2 to form an axial channel inside, allowing the fluid to flow between the two valve cores. This internal connection method is conducive to controlling the flow direction of the fluid, and by rotating the first valve core 1 and the second valve core 2, the alignment of the connecting hole and the axial through hole 331 on the middle partition 303 can be controlled to open or close the path of fluid flow. This precise control is important to ensure that the fluid flows along the predetermined path. The essence of the connecting hole and the axial channel enables the valve core to achieve different fluid connection combinations at different positions, providing more control options and increasing the flexibility and adaptability of the system.

[0099] See also Figures 1 to 18As shown, an air-conditioning system includes a valve device, which is the above-mentioned valve device. The air-conditioning system also includes a compressor 51, an evaporation side heat exchanger 52, a condensation side heat exchanger 53, a throttle valve 41, an outdoor heat exchanger 55, a water tank 56, a motor electronic control terminal 57, a battery 58, a first in-vehicle heat exchanger 59, and a second in-vehicle heat exchanger 60. The compressor 51, the evaporation side heat exchanger 52, the condensation side heat exchanger 53, and the throttle valve 41 are conventional air-conditioning systems, and a refrigerant circulates in the system. In order to utilize the heat of the outdoor heat exchanger 55, the water tank 56, the motor electronic control terminal 57, the battery 58, the first in-vehicle heat exchanger 59, and the second in-vehicle heat exchanger 60 or to dissipate the heat of the above components, the heat is utilized by water circulation.

[0100] In the present embodiment, the reason why the arrangement of the multiple first conductive structures 101, the multiple second conductive structures 201, the multiple first blind holes 102, the multiple second blind holes 202, the first connecting hole 103 and the second connecting hole 203 is improved is based on realizing the six modes of the air-conditioning system. The arrangement of the multiple first conductive structures 101, the multiple second conductive structures 201, the multiple first blind holes 102, the multiple second blind holes 202, the first connecting hole 103 and the second connecting hole 203 of the present embodiment can meet the connection requirements of these six modes.

[0101] by Figures 19 to 24 As shown, the framed areas on the unfolded surfaces of the first valve core and the second valve core 2 are areas aligned with the first mounting surface 301 and the second mounting surface 302 respectively, and the framed areas are achieved by rotating the first valve core 1 and the second valve core 2 to different rotational positions.

[0102] See also Fig.19As shown, the first mode is that the first valve core 1 is in the first rotation position, the second valve core 2 is in the first rotation position, the first first conducting structure T11 of the first valve core 1 connects the first interface flow path J1 and the fifth interface flow path J5 of the valve seat 3, the second first conducting structure T12 connects the second interface flow path J2 and the eighth interface flow path J8 of the valve seat 3, and the second ends of the first first blind hole M11, the second first blind hole M12, the first connecting hole 103 and the third first conducting structure T13 of the first valve core 1 are not connected to other channels after matching with the valve seat 3. The first second conduction structure T21 of the second valve core 2 connects the third interface flow path J3 and the ninth interface flow path J9 of the valve seat 3, the second second conduction structure T22 connects the fourth interface flow path J4 and the tenth interface flow path J10 of the valve seat 3, and the third second conduction structure T23 connects the sixth interface flow path J6 and the seventh interface flow path J7 of the valve seat 3. The corresponding passages formed on the air-conditioning system are the ninth interface flow path J9-the third interface flow path J3-the fourth interface flow path J4-the tenth interface flow path J10, and the second passage is the first interface flow path J1-the fifth interface flow path J5-the sixth interface flow path J6-the seventh interface flow path J7-the eighth interface flow path J8-the second interface flow path J2. At this time, when the car is parked for rest in winter, the cabin needs to be heated. When the vehicle is driving in winter, the waste heat of the motor and electronic control is recovered to heat the cabin.

[0103] See also Fig. 20As shown, the second mode is that the first valve core 1 maintains the first rotation position, and the second valve core 2 rotates 80° to the fourth rotation position. The first first conduction structure T11 of the first valve core 1 connects the first interface flow path J1 and the fifth interface flow path J5 of the valve seat 3, and the second first conduction structure T12 connects the second interface flow path J2 and the eighth interface flow path J8 of the valve seat 3. After the first connecting hole 103 of the first valve core 1 is matched with the valve seat 3, the first connecting hole 103 is connected to the first valve port 31, and the first end of the third first conduction structure T13 is also connected to the first valve port 31. At this time, the two second connecting holes 203 of the second valve core 2 are separated. They are respectively connected to the second valve port 32, that is, the first valve core 1 and the second valve core 2 are connected, the first connecting hole 103 is connected to one of the second connecting holes 203, and the first end of the third first conductive structure T13 is connected to the other second connecting hole 203, so that the thirteenth interface flow path J13 is connected to the fourth interface flow path J4, the fourteenth interface flow path J14 is connected to the tenth interface flow path J10, and the sixth second conductive structure T26 connects the third interface flow path J3 and the ninth interface flow path J9 of the valve seat 3. The second end channel of the seventh second conduction structure T27 connects the sixth interface flow path J6 and the seventh interface flow path J7 of the valve seat 3, and the corresponding passages formed on the air conditioning system are as follows: the first passage is the ninth interface flow path J9-the third interface flow path J3-the fourth interface flow path J4-the thirteenth interface flow path J13-the fourteenth interface flow path J14-the tenth interface flow path J10, and the second passage is the first interface flow path J1-the fifth interface flow path J5-the sixth interface flow path J6-the seventh interface flow path J7-the eighth interface flow path J8-the second interface flow path J2. In the second mode, the charging battery needs to be preheated at low temperatures in winter, and the vehicle cabin needs to be heated when starting in winter, and the battery needs to be heated.

[0104] See also Fig.21As shown, the third mode is that the first valve core 1 rotates to the third rotation position, the second valve core 2 rotates to the second rotation position, the fourth first conduction structure T14 of the first valve core 1 connects the first interface flow path J1 and the eleventh interface flow path J11 of the valve seat 3, the fifth first conduction structure T15 connects the fifth interface flow path J5 and the eighth interface flow path J8, the sixth first conduction structure T16 connects the first interface flow path J1 and the thirteenth interface flow path J13, and the eighth first conduction structure T18 connects the second interface flow path J2 and the fourteenth interface flow path J14. The second second conduction structure T22 of the second valve core 2 connects the third interface flow path J3 and the fourth interface flow path J4, the third second conduction structure T23 connects the ninth interface flow path J9 and the seventh interface flow path J7, and the fourth second conduction structure T24 connects the tenth interface flow path J10 and the sixth interface flow path J6. The corresponding flow paths on the air conditioning system are: the first path is the ninth interface flow path J9-the seventh interface flow path J7-the eighth interface flow path J8-the fifth interface flow path J5-the sixth interface flow path J6-the tenth interface flow path J10, and the second path is the first interface flow path J1-the eleventh interface flow path J11-the twelfth interface flow path J12-the thirteenth interface flow path J13-the fourteenth interface flow path J14-the second interface flow path J2. In the third mode, the battery needs to be cooled down during summer charging heat, and the cabin, battery, and motor electronic control all need to be cooled down during summer driving. The cabin does not need to be cooled down during summer driving, but the motor electronic control and battery need to be cooled down.

[0105] See also Fig. 22As shown, the fourth mode is that the first valve core 1 rotates to the second rotation position, the second valve core 2 rotates to the first rotation position, the second first conduction structure T12 of the first valve core 1 connects the first interface flow path J1 with the fifth interface flow path J5, the third first conduction structure T13 connects the eighth interface flow path J8 with the thirteenth interface flow path J13, and the fifth first conduction structure T15 connects the second interface flow path J2 with the fourteenth interface flow path J14. The first second conduction structure T21 of the second valve core 2 connects the third interface flow path J3 with the ninth interface flow path J9, the second second conduction structure T22 connects the fourth interface flow path J4 with the tenth interface flow path J10, and the third second conduction structure T23 connects the seventh interface flow path J7 with the sixth interface flow path J6. The corresponding air conditioning system flow path, the first path is the ninth interface flow path J9-the third interface flow path J3-the fourth interface flow path J4-the tenth interface flow path J10, and the second path is the first interface flow path J1-the fifth interface flow path J5-the sixth interface flow path J6-the seventh interface flow path J7-the eighth interface flow path J8-the thirteenth interface flow path J13-the fourteenth interface flow path J14-the second interface flow path J2. In the fourth mode, when the vehicle is parked for rest in winter, the residual heat in the battery can be recovered to heat the cabin. In weather below 15°C, the cabin needs to be heated, the residual heat in the motor and the battery can be recovered, the battery uses the ambient temperature to dissipate heat, and the air conditioning system does not operate. The motor and the battery use the ambient temperature to dissipate heat, and the air conditioning system does not operate.

[0106] See also Fig.23 As shown, the fifth mode is that the first valve core 1 rotates to the fourth rotation position, the second valve core 2 rotates to the second rotation position, the seventh first conduction structure T17 of the first valve core 1 connects the first interface flow path J1 with the eleventh interface flow path J11, the eighth first conduction structure T18 connects the fifth interface flow path J5 with the eighth interface flow path J8, and the ninth first conduction structure T19 connects the first interface flow path J1 with the second interface flow path J2. The second second conduction structure T22 of the second valve core 2 connects the third interface flow path J3 with the fourth interface flow path J4, the third second conduction structure T23 connects the ninth interface flow path J9 with the seventh interface flow path J7, and the fourth second conduction structure T24 connects the tenth interface flow path J10 with the sixth interface flow path J6. The corresponding flow paths on the air conditioning system are: the first path is the ninth interface flow path J9-the seventh interface flow path J7-the eighth interface flow path J8-the fifth interface flow path J5-the sixth interface flow path J6-the tenth interface flow path J10, and the second path is the first interface flow path J1-the eleventh interface flow path J11-the twelfth interface flow path J12-the second interface flow path J2. In the fifth mode, the cabin and the battery are cooled in summer.

[0107] See also Fig.24As shown, the sixth mode is that the first valve core 1 rotates to the third rotation position, the second valve core 2 rotates to the third rotation position, the fourth first conduction structure T14 of the first valve core 1 connects the first interface flow path J1 with the eleventh interface flow path J11, the fifth first conduction structure T15 connects the fifth interface flow path J5 with the eighth interface flow path J8, the sixth first conduction structure T16 connects the first interface flow path J1 with the thirteenth interface flow path J13, and the eighth first conduction structure T18 connects the second interface flow path J2 with the fourteenth interface flow path J14. The fourth second conduction structure T24 of the second valve core 2 connects the third interface flow path J3 with the ninth interface flow path J9, the fifth second conduction structure T25 connects the fourth interface flow path J4 with the seventh interface flow path J7, and the sixth second conduction structure T26 connects the tenth interface flow path J10 with the sixth interface flow path J6. The corresponding flow paths on the air conditioning system are: the first path is the ninth interface flow path J9-the third interface flow path J3-the fourth interface flow path J4-the seventh interface flow path J7-the eighth interface flow path J8-the fifth interface flow path J5-the sixth interface flow path J6-the tenth interface flow path J10, and the second path is the first interface flow path J1-the eleventh interface flow path J11-the twelfth interface flow path J12-the thirteenth interface flow path J13-the fourteenth interface flow path J14-the second interface flow path J2. In the sixth mode, in humid weather, the air conditioner runs in dehumidification mode.

[0108] By classifying and summarizing the 13 operating scenarios of the air-conditioning system, the operating states of the fourteen-way valve can be simplified into six combinations. For example, in the two situations of preheating the battery during low-temperature charging in winter and heating the battery and the cabin during the vehicle startup phase, the heat exchanger outside the vehicle runs low-temperature cooling water, the battery side runs high-temperature cooling water, and the heat exchanger inside the vehicle runs high-temperature cooling water. When the cabin does not need to be heated, the heat exchanger inside the vehicle only passes through high-temperature cooling water, and the cabin will not be heated when the blower is not turned on. Then, the fourteen-way valve states of the two scenarios can be combined into one, that is, the valve core state combination of mode one. The initial state of the first valve core 1 and the second valve core 2 defaults to the first rotation position, and then rotates the corresponding angle to switch according to the instruction of the air-conditioning system operation mode. For example, after the air-conditioning system is running, an instruction requiring the air-conditioning system to operate in mode three is received, and the valve core first actuator 41 and the valve core second actuator 42 start to act respectively. The valve core first actuator 41 drives the first valve core 1 to rotate 160° to operate in the third rotation position, and the valve core second actuator 42 drives the second valve core 2 to rotate 40° to operate in state 2. In this embodiment, the first valve core 1 is set to 4 operating states, and the second valve core 2 is set to 4 operating states. The two states are combined to form 6 air-conditioning system operating modes, which simplifies the controller logic.

[0109] A vehicle thermal management system includes a valve device, which is the above-mentioned valve device. Each load in the thermal management system is directly connected to the fourteen-way valve, and no other valves are required in the middle. The system design is streamlined, the pipeline design is centralized, the assembly space is reduced, and the maintenance difficulty is reduced.

[0110] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0111] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention, and these improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. A valve device, characterized in that: include: A valve seat (3), a first valve core (1) and a second valve core (2); A plurality of first valve ports (31) and second valve ports (32) are arranged on the circumferential outer wall of the valve seat (3); the first valve core (1) is installed at one end of the valve seat (3), and the second valve core (2) is installed at the other end of the valve seat (3); the first valve core (1) and the second valve core (2) are respectively rotatably arranged in the valve seat (3); A plurality of first conducting structures (101) are arranged in a circumferential direction of the first valve core (1), and the first conducting structures (101) are used to connect at least two of the first valve ports (31); a plurality of second conducting structures (201) are arranged in a circumferential direction of the second valve core (2), and the second conducting structures (201) are used to connect at least two of the second valve ports (32); The first valve core (1) and the second valve core (2) respectively have a plurality of rotation positions, so that the plurality of first valve ports (31) are respectively connected to different first conducting structures (101), and the plurality of second valve ports (32) are respectively connected to different second conducting structures (201).

2. The valve device according to claim 1, characterized in that The first conducting structure (101) is in communication with the two first valve ports (31), and taking the expanded surface of the first valve core (1) in the circumferential direction as the projection surface, part of the first conducting structure (101) is arranged horizontally, and the two first valve ports (31) are arranged side by side; part of the first conducting structure (101) is arranged vertically, and the two first valve ports (31) are arranged in the same row.

3. The valve device according to claim 2, characterized in that The first conducting structure (101) is a first groove, the first groove passes through the circumferential outer wall of the first valve core (1), one end of the first groove is connected to one of the first valve ports (31), the other end of the first groove is connected to one of the first valve ports (31), and a first channel is formed between the two first valve ports (31).

4. The valve device according to claim 2, characterized in that A plurality of first blind holes (102) are provided on the first valve core (1) in the axial direction of the first valve core (1), and the first blind hole (102) has a blocking surface with the development surface of the first valve core (1) in the circumferential direction as the projection surface. The blocking surface is arranged adjacent to the first conducting structure (101), and the blocking surface is used to block the first valve port (31).

5. The valve device according to claim 4, characterized in that Taking the development surface of the first valve core (1) in the circumferential direction as the projection surface, the first valve core (1) has a first wall surface (11), a second wall surface (12) and a third wall surface (13) which are developed in sequence; The first wall surface (11) comprises a first first conductive structure (101), a second first conductive structure (101), a first first blind hole (102), a second first blind hole (102) and a first connecting hole (103); the first first conductive structure (101), the first first blind hole (102) and the second first conductive structure (101) are arranged side by side, and the first first conductive structure (101) and the second first conductive structure (101) are arranged vertically; the second first blind hole (102) is arranged in the vertical direction of the first first conductive structure (101), and the first first blind hole (102) is arranged in the vertical direction of the first first conductive structure (101). 2), a first connecting hole (103) is arranged in the vertical direction of the first valve core (1), one end of the first connecting hole (103) passes through the circumferential outer wall of the first valve core (1), and the other end of the first connecting hole (103) passes through the bottom wall of the first valve core (1), a third first connecting structure (101) is arranged in the vertical direction of the second first connecting structure (101), the third first connecting structure (101) is arranged horizontally, the first end of the third first connecting structure (101) extends to the first wall surface (11) and passes through the bottom wall of the first valve core (1), and the second end of the third first connecting structure (101) extends to the second wall surface (12); The second wall surface (12) comprises a fourth first conductive structure (101), a fifth first conductive structure (101), a sixth first conductive structure (101) and a third first blind hole (102); the third first blind hole (102) and the fourth first conductive structure (101) are arranged side by side, the second end of the third first conductive structure (101) is located in the vertical direction of the third first blind hole (102), the fourth first conductive structure (101) is arranged horizontally, the fifth first conductive structure (101) and the sixth first conductive structure (101) are arranged vertically in the vertical direction of the fourth first conductive structure (101), and the fifth first conductive structure (101) and the sixth first conductive structure (101) are arranged side by side; The third wall surface (13) comprises a seventh first conductive structure (101), an eighth first conductive structure (101), a ninth first conductive structure (101), a fourth first blind hole (102), and a fifth first blind hole (102); the seventh first conductive structure (101) and the fourth first blind hole (102) are arranged side by side, the seventh first conductive structure (101) is arranged horizontally, and the eighth first conductive structure (101) is arranged in a vertical direction of the seventh first conductive structure (101). The eighth first conductive structure (101) is arranged vertically; the ninth first conductive structure (101) and the fifth first blind hole (102) are arranged in parallel, the first end of the ninth first conductive structure (101) and the first end of the fifth first blind hole (102) extend toward the eighth first conductive structure (101), and the second end of the ninth first conductive structure (101) and the second end of the fifth first blind hole (102) extend toward the vertical direction of the fourth first blind hole (102).

6. The valve device according to claim 1, characterized in that The second conducting structure (201) is in communication with the two second valve ports (32), and taking the expanded surface of the second valve core (2) in the circumferential direction as the projection surface, part of the second conducting structure (201) is arranged horizontally, and the two second valve ports (32) are arranged side by side; part of the second conducting structure (201) is arranged vertically, and the two second valve ports (32) are arranged in the same row.

7. The valve device according to claim 6, characterized in that The second conducting structure (201) is a second groove, the second groove passes through the circumferential outer wall of the second valve core (2), one end of the second groove is connected to one of the second valve ports (32), the other end of the second groove is connected to one of the second valve ports (32), and a second channel is formed between the two second valve ports (32).

8. The valve device according to claim 6, characterized in that Taking the development surface of the second valve core (2) in the circumferential direction as the projection surface, the second valve core (2) has a fourth wall surface (21), a fifth wall surface (22) and a sixth wall surface (23) which are developed in sequence; The fourth wall (21) comprises a first second conductive structure (201), a second second conductive structure (201), and a third second conductive structure (201); the first second conductive structure (201) and the second second conductive structure (201) are arranged side by side, the first second conductive structure (201) is arranged vertically, the second second conductive structure (201) is arranged horizontally, the third second conductive structure (201) is arranged in the vertical direction of the second second conductive structure (201), and the third second conductive structure (201) is arranged horizontally; The fifth wall surface (22) comprises a fourth second conductive structure (201), a fifth second conductive structure (201) and a sixth second conductive structure (201); the fourth second conductive structure (201), the fifth second conductive structure (201) and the sixth second conductive structure (201) are arranged side by side in sequence, and the fourth second conductive structure (201), the fifth second conductive structure (201) and the sixth second conductive structure (201) are all arranged vertically; The sixth wall surface (23) comprises a seventh second-connecting structure (201), a second blind hole (202) and two second connecting holes (203); the two second connecting holes (203) and the second blind hole (202) are arranged side by side in sequence, one end of the two second connecting holes (203) respectively penetrates the circumferential outer wall of the second valve core (2), and the other end of the two second connecting holes (203) respectively penetrates the top wall of the second valve core (2); the seventh second-connecting structure (201) is arranged horizontally, the first end of the seventh second-connecting structure (201) extends in the vertical direction of one of the second connecting holes (203), and the second end of the seventh second-connecting structure (201) extends in the vertical direction of another second connecting hole (203).

9. The valve device according to claim 1, characterized in that The valve device is a fourteen-way valve, and the circumferential outer wall of the valve seat (3) has a first mounting surface (301) and a second mounting surface (302), nine first valve ports (31) are arranged in an array on the first mounting surface (301), and six second valve ports (32) are arranged in an array on the second mounting surface (302).

10. The valve device according to any one of claims 1 to 9, characterized in that The valve seat (3) is provided with a middle diaphragm (303), the middle diaphragm (303) dividing the inner cavity of the valve seat (3) into a first chamber and a second chamber, the first valve core (1) is installed in the first chamber, and the second valve core (2) is installed in the second chamber; At least one first connecting hole (103) is also provided in the circumferential direction of the first valve core (1), one end of the first connecting hole (103) passes through the circumferential outer wall of the first valve core (1), and the other end of the first connecting hole (103) is connected to the first valve core (1) and extends to the middle partition plate (303); at least one second connecting hole (203) is also provided in the circumferential direction of the second valve core (2), one end of the second connecting hole (203) passes through the circumferential outer wall of the second valve core (2), and the other end of the second connecting hole (203) is connected to the second valve core (2) and extends to the middle partition plate (303); an axial through hole (331) is provided on the middle partition plate (303), and the first connecting hole (103) and the second connecting hole (203) are respectively connected to the axial through hole (331).

11. An air conditioning system, comprising a valve device, characterized in that: The valve device is the valve device according to any one of claims 1 to 10.

12. A vehicle thermal management system, comprising a valve device, characterized in that: The valve device is the valve device according to any one of claims 1 to 10.

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