Valve device

Abstract

The invention provides a valve device which comprises a valve body and a valve element, the valve body is provided with a valve cavity, the valve element is provided with a communicating channel, the communicating channel is provided with a first port and a second port, the first port is located at one axial end of the valve element, and the second port is located on the periphery of the valve element; the valve device further comprises a sliding block and an elastic part, the sliding block is provided with a first flow channel, the first flow channel is communicated with the first port, and the first flow channel is communicated with the first channel; in the axial direction of the valve device, the sliding block makes contact with the valve element, and the part, used for making contact with the valve element, of the sliding block is made of lubricating materials. According to the valve device, the valve element can be prevented from large-amplitude deflection, and the valve element is not prone to being stuck.

Description

Technical Field

[0001] The present invention relates to the technical field of valve devices, and in particular to a valve device. Background Art

[0002] The valve device includes a valve core ball and a valve body. The valve core ball is located in the valve cavity of the valve body. One end of the valve core ball is connected to the valve stem, and the valve stem drives the valve core ball to rotate. During the operation of the valve core ball, it may deflect, which may cause the valve core ball to get stuck. Summary of the invention

[0003] The purpose of the present application is to provide a valve device that can reduce the amplitude of valve core deflection and reduce the risk of valve core getting stuck.

[0004] The present application provides a valve device, comprising a valve body and a valve core, wherein the valve body has a valve cavity, the valve core has a communication channel, the communication channel has a first port and a second port, the first port is located at one end of the valve core in an axial direction, and the second port is located at an outer peripheral portion of the valve core;

[0005] The valve device also includes a slider and an elastic part, the slider has a first flow channel, the first flow channel is connected to the first port, and the first flow channel is connected to the first channel; along the axial direction of the valve device, the slider is in contact with the valve core, and the material of the part of the slider that is used to contact the valve core is a lubricating material.

[0006] In the technical solution of the present application, under the action of the elastic part, the slider and the valve core maintain contact to reduce the deflection of the valve core; the part where the slider contacts the valve core is made of lubricating material, so when the valve core rotates, the contact friction between the slider and the valve core can be reduced, thereby reducing the risk of the valve core getting stuck while limiting the valve core to reduce the deflection of the valve core. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 A schematic diagram of a valve device in an embodiment of the present application;

[0008] Figure 2 for Figure 1 The main view of

[0009] Figure 3 for Figure 1 Middle AA section view;

[0010] Figure 4 for Figure 1 Left view of;

[0011] Figure 5 for Figure 4 Middle BB section view;

[0012] Figure 6 for Figure 3 Schematic diagram of the middle valve core;

[0013] Figure 7 for Figure 6 Schematic diagram of the middle valve core from another perspective;

[0014] Figure 8 for Figure 7 A cross-sectional view of the middle valve core along the axial direction;

[0015] Fig. 9 for Figure 3 The structural diagram of the middle slider;

[0016] Fig.10 for Fig. 9 A cross-sectional view of the middle slider along the axial direction;

[0017] Fig.11 for Figure 3 A magnified view of the middle slider position;

[0018] Fig.12 for Figure 3 A schematic diagram of the structure of the middle elastic part;

[0019] Fig.13 for Fig.12 A cross-sectional view of the middle elastic portion along the axial direction;

[0020] Fig.14 for Figure 2 The CC section view shows that the valve device is in the first working condition.

[0021] Fig.15 for Figure 2 The CC section view shows that the valve device is in the second working condition.

[0022] Figure 1-15 The reference numerals in the drawings are described as follows:

[0023] 1-control component; 11, stator; 12, housing; 13, electric control board;

[0024] 2- rotor assembly; 21- rotor; 22- transmission gear;

[0025] 3-valve stem;

[0026] 4-valve body; 41-valve body; 42-cover; 4a-first channel; 4b-second channel; 4c-third channel; 4d-valve cavity; 4e-installation groove;

[0027] 5-valve core; 51-communication channel; 511-first port; 512-second port; 52-lower end surface; 53-boss; 54-limiting groove; 55-expansion groove;

[0028] 6-slider; 61-first flow channel; 62-second through hole; 63-first end surface; 64-chamfer;

[0029] 7-elastic portion; 71-second flow channel;

[0030] 8-valve seat;

[0031] 110 - sensor;

[0032] 120-Heat exchanger. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] Please refer to Figures 1 to 5 , Figure 1 A schematic diagram of a valve device in an embodiment of the present application; Figure 2 for Figure 1 The main view; Figure 3 for Figure 1 Middle AA section view; Figure 4 for Figure 1 Left view of Figure 5 for Figure 4 Middle BB section view.

[0035] like Figure 3 As shown, the valve device in this embodiment includes a valve body 4 and a valve core 5. The valve body 4 has a valve cavity 4d and a first channel 4a, a second channel 4b and a third channel 4c connected to the valve cavity 4d. Figure 3 From a perspective, at least part of the first channel 4a extends axially, and at least part of the second channel 4b and at least part of the third channel 4c extend radially, that is, three channels are dispersed around the valve cavity 4d, and a three-way valve with adjustable passage is formed in cooperation with the valve core 5. The valve core 5 is installed in the valve cavity 4d. In this embodiment, the valve device further includes a valve seat 8, which is located in the valve cavity 4d and fixed to the valve body 4. The valve seat 8 is provided with a matching surface. When the valve core 5 is installed in the valve cavity 4d, the matching surface of the valve seat 8 abuts and matches with the outer surface of the valve core 5, thereby performing preliminary axial and radial limiting on the valve core 5 to only allow the valve core 5 to rotate axially.

[0036] The valve core 5 can rotate around the rotation axis, and the axial direction of the valve device is parallel to the extending direction of the rotation axis of the valve core 5. In this embodiment, the valve core is spherical.

[0037] like Figure 1As shown, the valve device also includes a valve stem 3, a control head 1 and a static seal assembly 2. The static seal assembly 2 includes a rotor 21 and a transmission gear 22. The control head 1 includes a coil. The rotor 21 rotates under the action of the control head 1 and is connected to the valve stem 3 through the transmission gear 22, thereby driving the valve stem 3 to rotate axially. The valve stem 3 is connected to the valve core 5 in a transmission manner, so that the valve stem 3 can drive the valve core 5 to rotate. Specifically, as Figure 6 As shown, Figure 6 for Figure 3 The schematic diagram of the valve core 5 in FIG. 1 shows a valve core 5, wherein one end of the valve core 5 facing the valve stem 3 is provided with a limiting groove 54, which is the upper end of the valve core 5. Figure 3 As shown, the control head 1 is located at the upper end of the valve device in the axial direction, and the valve body 4 is located at the lower end of the valve core 5. This is used as a standard to define the up and down directions. Obviously, this does not mean that the valve device must be Figure 3 The valve device is placed in the upper and lower perspectives shown in the figure. During use, the valve device can also be placed horizontally, inverted or in other directions. The lower end of the valve stem 3 can be inserted into the limit groove 54, so that the valve stem 3 and the valve core 5 can be connected in a transmission manner. Figure 6 In the figure, two bosses 53 are arranged on the upper end of the valve core 5, and a limiting groove 54 is formed between the two bosses 53. The two opposite side walls of the limiting groove 54 are relatively parallel. After the lower end of the valve stem 3 is inserted into the limiting groove 54, it interferes with the side walls on both sides and cannot rotate. When the valve stem 3 rotates, the valve core 5 can also be driven to rotate.

[0038] In addition, combined Figure 3 , 5 as well as Figure 7 , 8 understand, Figure 7 for Figure 6 A schematic diagram of the middle valve core 5 from another perspective; Figure 8 for Figure 7 A cross-sectional view of the middle valve core 5 along the axial direction.

[0039] The valve core 5 in this embodiment has a communication channel 51, and the communication channel 51 has a first port 511 and a second port 512. The first port 511 is located at one end of the valve core 5 in the axial direction, specifically at Figure 3 The lower end of the valve core 5, that is, a part of the communication channel 51, axially penetrates the lower end of the valve core 5, and the second port 512 of the communication channel 51 is located on the side of the valve core 5 in the radial direction, that is, a part of the communication channel 51 radially penetrates the side of the valve core 5. At this time, the first channel 4a of the valve body 4 is always connected to the first port 511, and the rotation of the valve core 5 does not affect the communication between the first channel 4a and the first port 511. Figure 3As shown, the first channel 4a includes an axially extending portion and a radially extending portion, wherein the upper port of the axially extending portion is located below the first port 511 and remains connected to the first port 511, and a port of the second channel 4b and a port of the third channel 4c are both facing the side of the valve core 5. In this way, when the valve core 5 rotates, the second port 512 and the second channel 4b can be connected, or the second port 512 and the third channel 4c can be connected, and the first channel 4a and the second channel 4b can be connected, or the first channel 4a and the third channel 4c can be connected, thereby realizing the on-off control of the two passages in the three-way valve.

[0040] It is worth noting that the valve device in this embodiment further includes a slider 6 and an elastic portion 7, which are sequentially arranged axially between the valve core 5 and the first channel 4a. Figure 3 , 5 As shown, the slider 6 is closest to the valve core 5, and the elastic portion 7 is located below the slider 6 and above the upper port of the first channel 4a.

[0041] Specifically, Figures 9 to 11 As shown, Fig. 9 for Figure 3 A schematic diagram of the structure of the middle slider 6; Fig.10 for Fig. 9 A cross-sectional view of the middle slider 6 along the axial direction; Fig.11 for Figure 3 Enlarged view of the position of the middle slider 6.

[0042] The slider 6 in this embodiment is in axial contact with the valve core 5. Figure 7 , 8 As shown, the valve core 5 has a lower end surface 52, and the communication channel 51 of the valve core 5 also penetrates the lower end of the valve core 5 to form a first port 511. The first end surface 52 surrounds the first port 511. The slider 6 is in contact with the lower end surface 52 of the valve core 5, and the material of the part of the slider 6 that contacts the valve core 5 is a lubricating material. Specifically, the slider 6 has a first end surface 63 facing the valve core 5, that is, Fig.10 The upper end surface of the middle slider 63 , the first end surface 63 , contacts the lower end surface 52 of the valve core 5 .

[0043] In addition, the slider 6 and the elastic part 7 in this embodiment are both provided with flow channels that are interconnected, which can be defined as a first flow channel 61 and a second flow channel 71, respectively. Fig. 9 , 10 ,as well as Fig.12 , 13 understand, Fig.12 for Figure 3 A schematic structural diagram of the middle elastic portion 7; Fig.13 for Fig.12 A cross-sectional view of the middle elastic portion 7 along the axial direction.

[0044] It can be seen that the slider 6 and the elastic part 7 are both annular or cylindrical structures, and their respective through holes form the above-mentioned first flow channel 61 and second flow channel 71. The first flow channel 61 and the second flow channel 71 are connected along the axial direction and communicate with each other. The first flow channel 61 of the slider 6 is connected to the first port 511 of the valve core 5, and the second flow channel 71 of the elastic part 7 is connected to the port at the upper part of the first channel 4a. In this way, when the first port 511 of the valve core 5 is connected to the first channel 4a, when the second port 512 of the valve core 5 is connected to the second channel 4b or the third channel 4c, the first channel 4a and the second channel 4b can be connected, or the first channel 4a and the third channel 4c can be connected.

[0045] So set up, such as Figure 3 As shown, the elastic part 7 is located below the slider 6 and can be in a compressed state to provide an upward elastic force, that is, to provide an elastic force in the axial direction close to the valve core 5, so as to abut the slider 6 to the lower end surface 52 of the valve core 5, make up the gap between the slider 6 and the valve core 5, and ensure that the slider 6 and the valve core 5 always keep in contact. In this way, on the one hand, under the action of the elastic part 7, the slider 6 and the valve core 5 keep in contact to prevent the valve core 5 from deflecting significantly. On the other hand, when the valve core 5 rotates, the part of the slider 6 that contacts the valve core 5 is made of lubricating material, so the contact friction with the valve core 5 is small. Under the premise of limiting the valve core 5 to prevent a significant deflection, it is not easy to cause the problem of jamming.

[0046] There are many types of lubricating materials mentioned above, such as PTFE (Poly tetra fluoroethylene). PTFE has the characteristics of high temperature resistance, low temperature resistance, corrosion resistance and high lubricity, and can be well adapted to the application in valve devices. Of course, the lubricating material can also be other types, such as PEEK (Poly ether-ether ketone). PEEK has excellent comprehensive properties such as high temperature resistance, self-lubrication, corrosion resistance, flame retardancy, hydrolysis resistance, wear resistance and fatigue resistance; it can also be POM (polyformaldehyde), which has good self-lubrication, good fatigue resistance and elasticity in a wide range of temperature and humidity; in addition to such non-metallic lubricating materials, it can also be self-lubricating metal materials with self-lubrication.

[0047] It can be seen that the entire slider 6 can be made of lubricating material, which is convenient for processing; of course, only the part of the slider 6 that contacts the valve core 5 can be made of lubricating material, such as Fig.10In the figure, the slider 6 has a first end face 63 facing the valve core 5, and the first end face 63 is in contact with the lower end face 52 of the valve core 5. Only the first end face 63 is set to a lubricating material. For example, the slider 6 is made of stainless steel, and a layer of PTFE is covered on the upper end of the slider 6 to form the first end face 63. With this arrangement, the material selection of the slider 6 body is more flexible.

[0048] like Figure 3 As shown, the valve body 4 is provided with a mounting groove 4e, which is arranged at the bottom of the valve cavity 4d and is formed by a part of the bottom being recessed downward. The mounting groove 4e is used to install the slider 6, and part of the slider 6 is located in the mounting groove 4e to guide and limit the slider 6. The outer wall of the slider 6 and the side wall of the mounting groove 4e are clearance-matched, and the slider 6 can slide relative to the mounting groove 4e along the axial direction. Under the action of the elastic part 7, the slider 6 can move a certain distance in the axial direction toward the valve core 5 to drive the slider 6 to move upward and eliminate the gap between the slider 6 and the valve core 5. The elastic part 7 is also located in the mounting groove 4e, and the elastic part 7 is located between the bottom wall of the mounting groove 4e and the slider 6. The port of the upper part of the first channel 4a passes through the bottom wall of the mounting groove 4e, and the port of the first channel 4a is connected with the second flow channel 71. The setting of the mounting groove 4e as the mounting position of the elastic part 7 and the slider 6 does not need to occupy too much axial space.

[0049] As an example, Fig. 9 , 10 As shown, the slider 6 is a cylindrical structure. In this case, the first flow channel 61 of the slider 6 includes a first through hole in the middle of the cylindrical structure. Accordingly, the first end face 63 of the slider 6 is annular. The slider 6 of this structure has a large through hole. The annular side wall of the slider 6 only needs to maintain the necessary support stiffness and can be set as thin as possible to leave more space for the first flow channel 61, which is conducive to the flow of the medium. In this embodiment, the hole wall of the first through hole of the slider 6 is provided with a chamfer 64 at one end close to the valve core 5. The radial dimension of the first end face 63 is small, which can reduce the contact area with the valve core 5 to further reduce friction. Here, the entire first end face 63 of the slider 6 is in contact with the lower end face 52 of the valve core 5. It can be seen that the part of the slider 6 that contacts the valve core 5 is not limited to the entire end face. For example, the upper end face of the slider 6 is provided with a protrusion, such as a hemispherical protrusion, which can contact the valve core 5. Here, it is set as the first end face 63 in contact as a whole, which is simpler to process. Moreover, since it is made of lubricating material, the friction is small and will not cause jamming.

[0050] Figure 3 In the embodiment, a part of the slider 6 is located in the mounting groove 4e, and the other part is located above the mounting groove 4e. The valve seat 8 in the valve cavity 4a is supported and matched with the valve core 5, and the valve core 5 is at a certain distance from the bottom of the valve cavity 4a. In this way, the part of the slider 6 that is higher than the mounting groove 4e is convenient for contacting with the valve core 5.

[0051] Furthermore, if Fig. 9 , 10 As shown, the slider 6 has a second through hole 62 that radially penetrates its side wall. The through hole serves as a balancing hole and can connect the radial inner and outer sides of the slider 6. One end of the second through hole 62 is connected to the first through hole, and the other end of the second through hole 62 is connected to the valve cavity 4d, specifically, it connects the first flow channel 61 and the gap between the slider 6 and the side wall of the mounting groove 4e. The gap is connected to the valve cavity 4d, so the second through hole 62 can connect the first flow channel 61 and the valve cavity 4d to balance the pressure difference between the valve cavity 4d and the first flow channel 61.

[0052] like Fig.12 , 13 As shown, the elastic part 7 in this embodiment specifically includes a wave spring, which is a cylindrical elastic component with deformation ability. The second flow channel 71 of the wave spring includes a through hole in the middle thereof. The wave spring has a continuous structure in the axial direction, which can provide elastic force to the slider 6 more stably and reliably, and establish reliable communication between the first channel 4a and the first flow channel 61. It can be seen that the elastic part 7 can be a structure other than a wave spring, such as a spring or an elastic gasket. In this embodiment, the slider 6 and the elastic part 7 are both set to coaxially distributed annular or cylindrical structures, so that the first flow channel 61 and the second flow channel 71 are coaxially arranged to form a connecting flow channel with approximately equal diameters, which can better conduct the first channel 4a and the first port 511 of the valve core 5.

[0053] As another example, the slider 6 may further include a limiting portion (not shown in the figure), which may pass through the first port 511 of the valve core 5 and be located in the communication channel 51 of the valve core 5, and the limiting portion may be made of a lubricating material. If the limiting portion directly extends into the interior of the valve core 5, the deflection of the valve core 5 may be directly adjusted to reduce friction. Specifically, the limiting portion is formed by, for example, extending upward from the inner edge of the first end surface 63.

[0054] You can continue to refer to Figure 3 , 5 In this embodiment, the valve stem 3 is inserted into the limiting groove 54 of the valve core 5, and interferes with the side walls of the limiting groove 54 to drive the valve core 5 to rotate, and has a spacing with the bottom of the valve core 5 to prevent the valve stem 3 and the valve core 5 from being stuck due to errors in processing and assembly. The valve seat 8 can play an axial limiting role on the valve core 5 to ensure the spacing between the valve stem 3 and the valve core 5. It can be understood that since the slider 6 keeps contact with the valve core 5 in the axial direction to limit the deflection of the valve core 5, the precision requirement for the spacing between the valve stem 3 and the valve core 5 can also be reduced, and the processing difficulty can be reduced accordingly.

[0055] In addition, the valve body 4 in this embodiment includes a valve body 41 and a cover 42, a valve cavity 4d, a first channel 4a and a third channel 4c are provided in the valve body 41, one side of the valve body 41 is open, the cover 42 and the valve body 41 are plug-connected, the cover 42 is provided with a second channel 4b, after the cover 42 is installed to the valve body 41, one port of the second channel 4b faces the side wall of the valve core 5, or is connected to the second port 512 of the valve core 5. The cover 42 has a protrusion, which can be inserted into the opening of the valve body 41 and is sealed with the valve body 41 through a sealing ring. Figure 3 It can be seen from the figure that the valve seat 8 and the valve body 41 are sealed by a sealing ring and a wave spring.

[0056] Please refer to Fig.14 , 15 , Fig.14 for Figure 2 The CC section view shows that the valve device is in the first working state; Fig.15 for Figure 2 The CC section view shows that the valve device is in the second working condition.

[0057] like Fig.14 As shown, the valve body assembly 1 also has a fourth channel 4f, and the third channel 4c has an opening in the wall forming the fourth channel 17. The valve device includes a sensor 110 (shown in Figure 5 ), a portion of the sensor 110 is located in the fourth channel 4f, and the sensor 110 can sense the parameters of the fluid in the fourth channel 4f. In this embodiment, the sensor 110 is a temperature and pressure sensor. In other embodiments, the sensor 110 can be a temperature sensor or a pressure sensor.

[0058] The valve device includes a control assembly 1, which includes a housing 12, a stator 11, and an electric control board 13, at least part of which is sleeved on the outer periphery of the rotor assembly 2. The stator 11 is electrically connected and / or signal-connected to the electric control board 13, the sensor 110 is electrically connected and / or signal-connected to the electric control board 13, the electric control board 13 is located in the housing 12, and the electric control board 13 can be electrically connected and / or signal-connected to the vehicle bus.

[0059] like Fig.14 As shown, after the valve device is connected to the thermal management system, the fourth channel 4f is connected to the outlet of the heat exchanger 120, and the second channel 4b is connected to the inlet of the heat exchanger 120. The heat exchanger 120 can be a plate heat exchanger or a microchannel heat exchanger.

[0060] The valve core 5 can adjust the refrigerant flow entering the heat exchanger 120, and the sensor 110 can measure the temperature and pressure of the refrigerant flowing out of the heat exchanger 120. After measuring the temperature and pressure, the sensor 110 can transmit the information to the vehicle processor or directly to the processor included in the electric control board 13. The processor can adjust the rotation angle of the valve core 5 according to the information of the sensor 110, thereby adjusting the refrigerant flow entering the heat exchanger 120.

[0061] Specific examples are used herein to illustrate the principles and implementation methods of the present application, and the description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A valve device, It is characterized in that The invention comprises a valve body (4) and a valve core (5), wherein the valve body (4) has a valve cavity (4d), the valve core (5) has a communication channel (51), the communication channel (51) has a first port (511) and a second port (512), the first port (511) is located at one axial end of the valve core (5), and the second port (512) is located at the outer periphery of the valve core (5); The valve device further comprises a slider (6) and an elastic portion (7); along the axial direction of the valve device, the valve core (5) is located on one side of the slider (6), and the elastic portion (7) is located on the other side of the slider (6); the slider (6) has a first flow channel (61), and the first flow channel (61) is connected to the first port (511); along the axial direction of the valve device, the slider (6) contacts the valve core (5), and the material of the portion of the slider (6) that contacts the valve core (5) is a lubricating material.

2. The valve device according to claim 1, It is characterized in that The lubricating material includes polytetrafluoroethylene, polyetheretherketone, polyoxymethylene or a self-lubricating metal material.

3. The valve device according to claim 2, It is characterized in that The entire slider (6) is made of a lubricating material, or only the portion of the slider (6) that contacts the valve core (5) is made of a lubricating material.

4. The valve device according to any one of claims 1 to 3, It is characterized in that The slider (6) is a cylindrical structure, and has a first through hole extending along the axial direction of the valve device, and the first flow channel (61) includes the first through hole; the slider (6) has a second through hole (62) penetrating its side wall in the radial direction, one end of the second through hole (62) is connected to the first through hole, and the other end of the second through hole (62) is connected to the valve cavity (4d).

5. The valve device according to claim 4, It is characterized in that The slider (6) comprises a first end surface (63) facing the valve core (5) and in an annular shape, wherein the first end surface (63) is in axial contact with the valve core (5); the first end surface (63) is a convex curved surface or a flat surface.

6. The valve device according to claim 5, It is characterized in that The hole wall of the first through hole forming the slider (6) has a chamfer (64) at one end facing the valve core (5), and the chamfer (64) is arranged to expand in diameter toward the valve core (5) and is adjacent to the first end surface (63).

7. The valve device according to claim 5, It is characterized in that The slider (6) further comprises a limiting portion, the limiting portion extending from the inner edge of the first end surface (63) toward the valve core (5), the limiting portion passing through the first port (511) of the valve core (5), and the limiting portion being made of a lubricating material.

8. The valve device according to any one of claims 1 to 3, It is characterized in that The valve body (4) has a first channel (4a), the first channel (4a) has an opening in the wall forming the valve cavity (4d), the first flow channel (61) is connected to the first channel (4a), and along the axial direction of the valve device, the slider (6) and the elastic part (7) are both located between the valve core (5) and the first channel (4a).

9. The valve device according to claim 8, It is characterized in that The elastic part (7) comprises a wave spring, a coil spring or a butterfly spring, the elastic part (7) has a through hole located in the middle of the elastic part (7), one end of the through hole of the elastic part (7) is connected to the first flow channel (71), and the other end is connected to the first channel (4a); or the elastic part (8) comprises an elastic polymer.

10. The valve device according to any one of claims 1 to 8, It is characterized in that The valve body (4) has a third channel (4c) and a second channel (4b), and both the third channel (4c) and the second channel (4b) have openings in the wall forming the valve cavity (4d); by controlling the rotation of the valve core (5), the second port (512) and the second channel (4b) can be connected, or the second port (512) and the third channel (4c) can be connected.

11. The valve device according to claim 10, It is characterized in that The valve body has a fourth channel, and the second channel has an opening in a wall forming the fourth channel; the valve device comprises a sensor (10), and a portion of the sensor (10) is located in the fourth channel; the valve device comprises a control component (1) and a rotor component (2), the control component (1) comprises a housing, a stator and an electric control board, the rotor component (2) comprises a rotor, and at least a portion of the stator is sleeved on the outer periphery of the rotor component; the stator is electrically connected and / or signal-connected to the electric control board, the sensor is electrically connected and / or signal-connected to the electric control board, the electric control board is located in the housing, and the electric control board can be electrically connected and / or signal-connected to a vehicle bus.

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