Control valve and thermal management system

Abstract

The embodiment of the invention provides a control valve and a heat management system, and relates to the technical field of control valves. The control valve comprises a valve body, a valve element, a first magnetic coupling piece and an actuator, the valve element is rotatably arranged in the valve body, the first magnetic coupling piece is arranged on the valve element, the actuator comprises a shell, a driving piece, a rotating piece, a magnetic piece, an angle position sensor and a second magnetic coupling piece, and the shell is arranged on the valve body; the driving part and the angle position sensor are both arranged in a cavity of the shell, the driving part is connected with the rotating part and used for driving the rotating part to rotate, the magnetic part and the second magnetic coupling part are both arranged on the rotating part, and the rotating axis of the magnetic part, the rotating axis of the second magnetic coupling part and the rotating axis of the rotating part are collinear. The control valve can reduce the size precision requirement for parts, avoids affecting the sealing effect of the water valve, does not need to be provided with a movable sealing piece, reduces the risk of leakage of the control valve, improves the reliability of a product and prolongs the service life of the product.

Description

Technical Field

[0001] The present invention relates to the technical field of control valves, and in particular to a control valve and a thermal management system. Background Art

[0002] The electronic water valve is mainly composed of an actuator and a valve body assembly (including a valve core). The actuator contains a motor, a PCB circuit board and a gear system. The output torque of the motor is amplified through the deceleration of the gear system. A spline is set at the last stage of the gear system. This spline cooperates with the valve core to transmit the torque to the valve core, driving the valve core to rotate and run to the specified mode.

[0003] In the prior art, in order to ensure the concentricity requirements of the actuator and the valve core installation, high requirements are placed on the dimensional matching accuracy of the parts. For example, if the spline is not installed concentrically, the valve core will be skewed, affecting the sealing effect of the water valve. At the same time, dynamic seals are also required to prevent antifreeze leakage. However, after a long period of use, the dynamic seals will wear out and the water valve will be prone to leakage risks. Summary of the invention

[0004] The present invention provides a control valve and a thermal management system, which can reduce the requirements on the dimensional matching accuracy of parts, avoid affecting the sealing effect of the water valve and reduce the risk of leakage.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In a first aspect, the present invention provides a control valve, comprising:

[0007] Valve body;

[0008] A valve core, the valve core is rotatably disposed on a first magnetic coupling member inside the valve body, and the first magnetic coupling member is disposed on the valve core; and

[0009] An actuator, the actuator comprising a housing, a driving member, a rotating member, a magnetic member, an angle position sensor and a second magnetic coupling member, the housing being disposed on the valve body, the driving member and the angle position sensor being both disposed in a cavity of the housing, the driving member being connected to the rotating member, the driving member being used to drive the rotating member to rotate, the magnetic member and the second magnetic coupling member being both disposed on the rotating member, the rotating shaft axis of the magnetic member, the rotating axis of the second magnetic coupling member and the rotating axis of the rotating member being collinear;

[0010] Wherein, when the rotating member rotates, the second magnetic coupling member is driven to rotate, so that the first magnetic coupling member and the valve core rotate synchronously.

[0011] In an optional embodiment, the second magnetic coupling member surrounds the first magnetic coupling member;

[0012] Alternatively, the first magnetic coupling member and the second magnetic coupling member are parallel and spaced apart.

[0013] In an optional embodiment, the first magnetic coupling member and the second magnetic coupling member are parallel and spaced apart, and the first magnetic coupling member is arranged on the end surface of the valve core shaft segment, and the second magnetic coupling member is arranged on the end surface of the rotating member.

[0014] In an optional embodiment, the first magnetic coupling member includes a plurality of first magnetic members, and the plurality of first magnetic members surround the rotation axis of the first magnetic coupling member, and the second magnetic coupling member includes a plurality of second magnetic members, and the plurality of second magnetic members surround the rotation axis of the second magnetic coupling member.

[0015] In an optional embodiment, the valve body includes a valve body and an end cover, the end cover is arranged on the valve body, the valve core is rotatably arranged in the cavity of the valve body, the shell is arranged on the end cover, and the shell and the valve body are located on opposite sides of the end cover.

[0016] In an optional embodiment, the end cover includes an end cover body and an isolation sleeve connected to the end cover body, the end cover body is arranged on the valve body, the shell is arranged on the end cover body, and the shell and the valve body are located on opposite sides of the end cover body;

[0017] The valve core has a limiting shaft, the isolation sleeve is provided with a limiting groove, the first magnetic coupling component is arranged on the limiting shaft, and the first magnetic coupling component surrounds the limiting shaft, and the limiting shaft is matched with the limiting groove.

[0018] In an optional embodiment, the second magnetic coupling component surrounds the outside of the isolation sleeve, and the first magnetic coupling component is located inside the isolation sleeve.

[0019] In an optional embodiment, the valve body has a limiting portion, and the limiting portion cooperates with an inner wall of the valve core away from one end of the limiting shaft.

[0020] In an optional embodiment, the control valve further comprises a sealing ring, wherein the sealing ring is disposed between the housing and the end cover, and the sealing ring is in a compressed state.

[0021] In an optional embodiment, the first magnetic coupling member and the valve core are integrally injection molded, and / or the magnetic member and the second magnetic coupling member are integrally injection molded with the rotating member.

[0022] In an optional embodiment, the rotation axis of the valve core and the rotation axis of the rotating member are collinear.

[0023] In an optional embodiment, the rotation axis of the magnetic member passes through the angular position sensor.

[0024] In a second aspect, the present invention provides a thermal management system, comprising the control valve described in any one of the aforementioned embodiments.

[0025] The beneficial effects of the control valve and thermal management system of the embodiments of the present invention include, for example:

[0026] The present invention provides a control valve, which includes a valve body, a valve core, a first magnetic coupling member and an actuator. The valve core is rotatably arranged inside the valve body, the first magnetic coupling member is arranged on the valve core, and the actuator includes a housing, a driving member, a rotating member, a magnetic member, an angle position sensor and a second magnetic coupling member. The housing is arranged on the valve body, the driving member and the angle position sensor are both arranged in the cavity of the housing, the driving member is connected to the rotating member, the driving member is used to drive the rotating member to rotate, the magnetic member and the second magnetic coupling member are both arranged on the rotating member, and the rotation axis of the magnetic member, the rotation axis of the second magnetic coupling member and the rotation axis of the rotating member are collinear; wherein, When the rotating part rotates, the second magnetic coupling part is driven to rotate, so that the first magnetic coupling part and the valve core rotate synchronously. In this way, the valve core and the actuator can drive the valve core in a non-contact manner. At the same time, the magnetic coupling method is adopted to facilitate the automatic centering process of the valve core, avoid the eccentricity of the valve core, and thus reduce the dimensional accuracy requirements of the parts to avoid affecting the sealing effect of the water valve. In addition, the magnetic flux change of the magnetic part is obtained through the angle sensor to judge the rotation position of the rotating part, and then know the state of the control valve. At the same time, there is no need to set a dynamic seal, reducing the risk of leakage of the control valve.

[0027] The present invention provides a thermal management system, which includes the above-mentioned control valve and has all the functions of the above-mentioned control valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A cross-sectional view of a control valve provided in an embodiment of the present invention;

[0030] Figure 2 A schematic diagram of an end cap provided in an embodiment of the present invention;

[0031] Figure 3A schematic diagram of a first magnetic coupling member provided in an embodiment of the present invention being arranged on a valve core;

[0032] Figure 4 An exploded view of a first partial structure of a control valve provided in an embodiment of the present invention;

[0033] Figure 5 A schematic diagram of a magnetic member provided in an embodiment of the present invention being arranged on a rotating member;

[0034] Figure 6 It is an exploded view of the second partial structure of the control valve provided in the embodiment of the present invention.

[0035] Icon: 1000-control valve; 100-valve body; 110-valve body; 111-limiting part; 120-end cover; 121-end cover body; 122-isolation sleeve; 1221-limiting groove; 200-valve core; 210-limiting shaft; 300-first magnetic coupling part; 400-actuator; 410-housing; 420-rotating part; 430-magnetic part; 440-circuit board; 441-angle position sensor; 450-second magnetic coupling part; 500-sealing ring. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0041] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0042] As mentioned in the background technology, the electronic water valve is mainly composed of an actuator and a valve body assembly (including a valve core). The actuator has a motor, a PCB circuit board and a gear system inside. The output torque of the motor is amplified by the deceleration of the gear system. A spline is set at the last stage of the gear system. This spline cooperates with the valve core to transfer the torque to the valve core, driving the valve core to rotate and run to the specified mode.

[0043] In the prior art, in order to ensure the concentricity requirements of the actuator and the valve core installation, high requirements are placed on the dimensional matching accuracy of the parts. For example, if the spline is not installed concentrically, the valve core will be skewed, affecting the sealing effect of the water valve. The valve core deflection may also cause faults in the transmission meshing of the gear and the valve core (such as tooth jumping, tooth breaking, etc.), which may cause the water valve to fail.

[0044] At the same time, the above-mentioned existing water valve needs to be equipped with a dynamic sealing structure (equivalent to a seal) on the valve body assembly to prevent antifreeze from leaking from the valve body into the actuator assembly. After durability, the seal wears out, resulting in the risk of sealing failure of the control valve (that is, the water valve will have a problem of seal wear after being used for a period of time).

[0045] In view of this, please refer to Figure 1-Figure 6 The control valve 1000 and thermal management system provided in the embodiment of the present invention can solve this problem, which will be described in detail below.

[0046] A thermal management system is provided in an embodiment of the present invention, which includes a control valve 1000. The control valve 1000 has low requirements on parts accuracy and does not need to be equipped with a dynamic seal, thereby reducing the leakage risk of the control valve 1000. At the same time, it has smooth startup and overload protection, and the control valve 1000 has good reliability.

[0047] Specifically, the control valve 1000 includes a valve body 100, a valve core 200, a first magnetic coupling component 300 and an actuator 400. The valve core 200 is rotatably arranged in the cavity of the valve body 100, and the first magnetic coupling component 300 is arranged on the valve core 200. Specifically, the first magnetic coupling component 300 and the valve core 200 are fixedly connected, and the first magnetic coupling component 300 is located at the upper end of the valve core 200, for example, the first magnetic coupling component 300 and the valve core 200 are integrally injection molded.

[0048] The actuator 400 includes a housing 410 , a driving member, a rotating member 420 , a magnetic member 430 , a circuit board 440 and a second magnetic coupling member 450 . The circuit board 440 has an angle position sensor 441 .

[0049] Figure 1 As shown, the angle position sensor 441 is located directly above the magnetic component 430, and the shell 410 is arranged on the upper side of the valve body 100. Specifically, the shell 410 can be fixedly connected to the upper side of the valve body 100 by welding, and the driving component and the circuit board 440 are both arranged in the inner cavity of the shell 410, that is, the angle position sensor 441 is also located in the inner cavity of the shell 410.

[0050] Specifically, the angle position sensor 441 can be understood as an angle sensor or a position sensor.

[0051] Among them, the driving member is connected to the rotating member 420, the driving member is used to drive the rotating member 420 to rotate, the magnetic member 430 and the second magnetic coupling member 450 are both arranged on the rotating member 420, and the rotation axis of the magnetic member 430, the rotation axis of the second magnetic coupling member 450 and the rotation axis of the rotating member 420 are collinear.

[0052] It should be noted that, since the angle position sensor 441 is located directly above the magnetic component 430 , that is, the rotation axis of the magnetic component 430 can pass through the angle position sensor 441 .

[0053] In this embodiment, the second magnetic coupling member 450 and the magnetic member 430 are both fixedly connected to the rotating member 420, the magnetic member 430 is located on the upper side of the rotating member 420, and the second magnetic coupling member 450 is located on the lower side of the rotating member 420. The magnetic member 430 and the second magnetic coupling member 450 are distributed at intervals. For example, the magnetic member 430 and the second magnetic coupling member 450 are both injection molded as one piece with the rotating member 420.

[0054] When the rotating member 420 rotates, the second magnetic coupling member 450 can be driven to rotate, so that the first magnetic coupling member 300 and the valve core 200 rotate synchronously, thereby achieving torque transmission.

[0055] In this way, the valve core 200 and the actuator 400 can realize the driving of the valve core 200 by the actuator 400 in a non-contact manner. Compared with the electronic water valve in the prior art that adopts the mechanical structure of the meshing transmission (if there is a difference in the structural matching, it will cause transmission eccentricity and abnormal wear of the sealing ring), the control valve 1000 provided in this embodiment adopts a magnetic coupling method, which is convenient for realizing the automatic centering process of the valve core 200, avoiding the eccentricity of the valve core 200, thereby reducing the dimensional accuracy requirements of the parts and avoiding affecting the sealing effect of the control valve 1000.

[0056] It should be noted that the automatic centering of the valve core 200 is realized here, which can be understood as the rotation axis of the valve core 200 always remaining colinear with the rotation axis of the rotating member 420 .

[0057] In addition, the magnetic flux change of the magnetic part 430 is obtained through the angle position sensor 441 to determine the rotation position of the rotating part 420, and then know the state of the control valve 1000. The state of the control valve 1000 described here can be understood as the flow path mode of the control valve 1000 when the valve core 200 is in different rotation positions.

[0058] In addition, the non-contact torque transmission method is used to realize the rotation of the valve core 200, which replaces the method of transmitting torque through splines in the prior art, avoiding the problem of eccentric installation. At the same time, there is no need to set dynamic seals, reducing the risk of sealing failure of the control valve 1000.

[0059] It can be seen that the control valve 1000 provided in this embodiment can use the principle of a magnetic coupling to achieve torque transmission, thereby achieving rotation of the valve core 200 .

[0060] Therefore, the valve core 200 of the control valve 1000 has the advantage of smooth startup, and at the same time, it also has an overload protection function to prevent the control valve 1000 from being blocked for a long time.

[0061] In this embodiment, the control valve 1000 can be understood as a water valve, such as an automotive electronic water valve. The control valve 1000 can be a three-way valve. Of course, in other embodiments, it can also be a two-way valve or a four-way valve, a five-way valve, a multi-way valve, etc.

[0062] It is easy to understand that, in this embodiment, the rotation center line of the valve core 200 and the rotation center line of the rotating member 420 are collinear.

[0063] Specifically, the second magnetic coupling component 450 surrounds the first magnetic coupling component 300 .

[0064] Specifically, if Figure 3-Figure 6As shown, in this embodiment, the first magnetic coupling component 300 is an annular structure, and the second magnetic coupling component 450 is also an annular structure. Specifically, the first magnetic coupling component 300 has an even number of magnets, and the second magnetic coupling component 450 also has an even number of magnets. In this embodiment, the number of magnets in the first magnetic coupling component 300 is the same as the number of magnets in the second magnetic coupling component 450.

[0065] Please refer to Figure 3 and Figure 4 The valve core 200 has a limiting shaft 210, and the first magnetic coupling component 300 is arranged on the limiting shaft 210. Specifically, the first magnetic coupling component 300 and the limiting shaft 210 of the valve core 200 can be integrally injection molded, and the first magnetic coupling component 300 surrounds the limiting shaft 210. All magnets of the first magnetic coupling component 300 surround the limiting shaft 210, and the magnetic pole types of adjacent magnets on the same side are different, for example, one is an N pole and the other is an S pole. At the same time, the peripheral wall of the limiting shaft 210 is provided with a plurality of first partition plates, and a first partition plate is provided between adjacent magnets of the first magnetic coupling component 300.

[0066] In addition, please refer to Figure 5 and Figure 6 In this embodiment, the rotating member 420 can be understood as a gear. The rotating member 420 can be connected to the driving member through a gear set, and the driving member can be a motor.

[0067] The magnetic part 430 can be a magnet, and the magnetic part 430 is located at the rotation center of the rotating part 420. It can be understood that the rotation center line of the rotating part 420 passes through the magnetic part 430, and the rotating part 420 can drive the magnetic part 430 to rotate. The rotation center line of the magnetic part 430 and the center line of the rotating part 420 can be colinear. In this way, during the rotation of the rotating part 420, the magnetic part 430 can always remain at the center position of the rotating part 420. In this way, the angular position sensor 441 located above the magnetic part 430 can always accurately detect the magnetic flux changes of the magnetic part 430 in real time, which is conducive to knowing the flow path mode of the control valve 1000.

[0068] If the magnetic member 430 is not at the rotation center position of the rotating member 420, that is, the magnetic member 430 is at an eccentric position on the rotating member 420, the magnetic flux change of the magnetic member 430 cannot be accurately detected. For example, it is possible that the same magnetic flux conditions are detected when the rotating member 420 is at different rotation positions, resulting in incorrect flow path mode information obtained for the control valve 1000.

[0069] Specifically, the angle position sensor 441 can monitor the magnetic flux of the magnetic member 430 in real time, calibrate the magnetic flux at different angles through software, and then know the rotational position of the rotating member 420.

[0070] In addition, please refer to Figure 6 The rotating member 420 has a circular cylindrical structure on the side away from the magnetic member 430. All the magnets of the second magnetic coupling member 450 are arranged in sequence on the inner wall of the annular cylindrical structure. The magnetic pole types of adjacent magnets on the same side are different. For example, one is an N pole and the other is an S pole. At the same time, a plurality of second partition plates are provided on the inner peripheral wall of the annular cylindrical structure, and a second partition plate is provided between adjacent magnets of the second magnetic coupling member 450.

[0071] Please refer to Figure 3 and Figure 5 Combined with Figure 1 In order to facilitate torque transmission, the upper side of the magnet of the first magnetic coupling member 300 ( Figure 1 When the N pole is shown, the upper side of the magnet of the second magnetic coupling member 450 is ( Figure 1 As shown) corresponds to the S pole, when the upper side of the magnet of the first magnetic coupling member 300 is the S pole, the upper side of the magnet of the second magnetic coupling member 450 is ( Figure 1 (as shown) corresponds to the N pole.

[0072] Of course, in other embodiments, the first magnetic coupling component 300 and the second magnetic coupling component 450 may be arranged in parallel and spaced apart to achieve the function of transmitting torque.

[0073] It is easy to understand that when the first magnetic coupling member 300 and the second magnetic coupling member 450 are arranged in parallel and at intervals, the first magnetic coupling member 300 can be arranged on the end surface of the shaft section of the valve core 200, and the second magnetic coupling member 450 can be arranged on the end surface of the rotating member 420.

[0074] At this time, the end surface of the valve core 200 shaft section and the end surface of the rotating member 420 can be parallel and spaced apart, and the first magnetic coupling member 300 and the second magnetic coupling member 450 are located between the end surface of the valve core 200 shaft section and the end surface of the rotating member 420.

[0075] Specifically, the first magnetic coupling member 300 includes a plurality of first magnetic members (magnets may be selected), and the plurality of first magnetic members surround the rotation axis of the first magnetic coupling member. The second magnetic coupling member 450 includes a plurality of second magnetic members (magnets may be selected), and the plurality of second magnetic members surround the rotation axis of the second magnetic coupling member 450. Specifically, the plurality of first magnetic members may also be integrally injection molded with the valve core 200, and the second magnetic coupling member 450 and the rotating member 420 may be integrally injection molded.

[0076] The specific number and arrangement of the first magnetic components and the number and arrangement of the second magnetic components can be set according to actual conditions and will not be described in detail here.

[0077] In order to conveniently separate the valve core 200 and the actuator 400, in the present embodiment, the valve body 100 includes a valve body 110 and an end cover 120, the lower end of the valve core 200 is rotatably disposed in the cavity of the valve body 110, the end cover 120 is disposed on the valve body 110, the shell 410 is disposed on the end cover 120, and the shell 410 and the valve body 110 are located on opposite sides of the end cover 120.

[0078] Specifically, the end cover 120 is located on the upper side of the valve body 110, and the end cover 120 and the valve body 110 can be connected by welding or bolts. In addition, the shell 410 is located on the upper side of the end cover 120, and the shell 410 and the end cover 120 can also be connected by welding or bolts.

[0079] Specifically, the end cover 120 includes an end cover body 121 and an isolation sleeve 122 connected to the end cover body 121. The end cover body 121 is arranged on the valve body 110. Specifically, the end cover body 121 is located on the upper side of the valve body 110. The end cover body 121 and the valve body 110 can be connected by welding (such as laser welding) or bolts. The shell 410 is arranged on the end cover body 121. Specifically, the shell 410 is located on the upper side of the end cover body 121. The shell 410 and the end cover body 121 can also be connected by welding or bolts.

[0080] That is, the housing 410 and the valve body 100 are located on opposite sides of the end cover body 121 .

[0081] like Figure 1 As shown, it can be seen that the valve body 100 is located at the lower side of the end cover body 121 , and the housing 410 of the actuator 400 is located at the upper side of the end cover body 121 . It can be understood that the actuator 400 is located at the upper side of the end cover body 121 .

[0082] The isolation sleeve 122 is provided with a limiting groove 1221 , and the limiting shaft 210 cooperates with the limiting groove 1221 to prevent the valve core 200 from tilting, causing interference between the magnet of the first magnetic coupling member 300 and the isolation sleeve 122 of the end cover 120 , thereby affecting the rotation of the valve core 200 .

[0083] Among them, the bottom of the valve body 110 has a limiting portion 111, and the limiting portion 111 cooperates with the inner wall of the valve core 200 away from the limiting shaft 210 to prevent the valve core 200 from being deflected and affecting the sealing effect of the control valve 1000.

[0084] In this embodiment, the isolation sleeve 122 separates the first magnetic coupling member 300 from the second magnetic coupling member 450 . Generally speaking, the rotation speed of the valve core 200 is very low (less than 5 r / min), and the gap between the two is relatively small.

[0085] The thickness of the isolation sleeve 122 can be 0.5-3 mm to avoid attenuation of the effective magnetic induction intensity between the first magnetic coupling component 300 and the second magnetic coupling component 450. Alternatively, it can be understood that the thickness of the isolation sleeve 122 is small to avoid affecting the torque transmission to the valve core 200.

[0086] In addition, the second magnetic coupling component 450 surrounds the outer side of the isolation sleeve 122 , and the first magnetic coupling component 300 is located inside the isolation sleeve 122 .

[0087] Alternatively, in other embodiments, the first magnetic coupling component 300 and the valve core 200 may be integrally injection molded, while the magnetic component 430, the second magnetic coupling component 450 and the rotating component 420 are not integrally injection molded; or, the magnetic component 430, the second magnetic coupling component 450 and the rotating component 420 may be integrally injection molded, while the first magnetic coupling component 300 and the valve core 200 are not integrally injection molded.

[0088] In addition, the control valve 1000 further includes a sealing ring 500 , which is disposed between the lower side of the housing 410 and the upper side of the end cover body 121 of the end cover 120 , and the sealing ring 500 is in a compressed state.

[0089] It should be noted that the sealing ring 500 can prevent external foreign matter from entering between the isolation sleeve 122 and the second magnetic coupling member 450. For example, if some magnetic substances enter, the transmission of magnetic coupling will be affected.

[0090] The sealing ring 500 can surround the rotation axis of the rotating member 420 . An annular sealing ring 500 installation groove is provided on the end cover body 121 , and the sealing ring 500 is installed in the sealing ring 500 installation groove.

[0091] Of course, in other embodiments, the sealing ring 500 may not be provided, as long as the accuracy of the parts of the control valve 1000 is improved and the gap between the shell 410 and the end cover body 121 at the contact position is reduced to prevent external foreign matter from entering between the isolation sleeve 122 and the second magnetic coupling member 450, which would affect the transmission of the magnetic coupling and further affect the transmission process of the control valve 1000, causing the control valve 1000 to fail.

[0092] In summary, the control valve 1000 includes a valve body 100, a valve core 200, a first magnetic coupling member 300 and an actuator 400. The valve core 200 is rotatably arranged inside the valve body 100. The first magnetic coupling member 300 is arranged on the valve core 200. The actuator 400 includes a shell 410, a driving member, a rotating member 420, a magnetic member 430, an angle position sensor 441 and a second magnetic coupling member 450. The shell 410 is arranged on the valve body 100. The driving member and the angle position sensor 441 are both arranged in the cavity of the shell 410. The driving member is connected to the rotating member 420. The driving member is used to drive the rotating member 420 to rotate. The magnetic member 430 and the second magnetic coupling member 450 are both arranged on the rotating member 420. The rotation axis of the magnetic member 430, the rotation axis of the second magnetic coupling member 450 and the rotation axis of the rotating member 420 are collinear.

[0093] Among them, when the rotating part 420 rotates, the second magnetic coupling part 450 is driven to rotate, so that the first magnetic coupling part 300 and the valve core 200 rotate synchronously. In this way, the valve core 200 and the actuator 400 can realize the driving of the valve core 200 by the actuator 400 in a non-contact manner. At the same time, the magnetic coupling method is adopted to facilitate the automatic centering process of the valve core 200, avoid the eccentricity of the valve core 200, and thus reduce the dimensional accuracy requirements of the parts, and avoid affecting the sealing effect of the water valve. In addition, the magnetic flux change of the magnetic part 430 is obtained through the angle sensor, so as to judge the rotation position of the rotating part 420, and then know the state of the control valve 1000. There is no need to set a dynamic seal, which reduces the risk of leakage of the control valve 1000 and improves the reliability and service life of the product.

[0094] The present invention provides a thermal management system, which includes the control valve 1000 mentioned above and has all the functions of the control valve 1000 mentioned above.

[0095] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A control valve, characterized in that: include: Valve body (100); A valve core (200), the valve core (200) being rotatably disposed inside the valve body (100); a first magnetic coupling member (300), the first magnetic coupling member (300) being arranged on the shaft section of the valve core (200); and an actuator (400), the actuator (400) comprising a housing (410), a driving member, a rotating member (420), a magnetic member (430), an angle position sensor (441) and a second magnetic coupling member (450), the housing (410) being arranged on the valve body (100), the driving member and the angle position sensor (441) being both arranged in a cavity of the housing (410), the driving member being connected to the rotating member (420), the driving member being used to drive the rotating member (420) to rotate, the magnetic member (430) and the second magnetic coupling member (450) being both arranged on the rotating member (420), the rotation axis of the magnetic member (430), the rotation axis of the second magnetic coupling member (450) and the rotation axis of the rotating member (420) being collinear; Wherein, when the rotating member (420) rotates, the second magnetic coupling member (450) is driven to rotate, so that the first magnetic coupling member (300) and the valve core (200) rotate synchronously.

2. The control valve according to claim 1, characterized in that: The second magnetic coupling component (450) surrounds the first magnetic coupling component (300); Alternatively, the first magnetic coupling member (300) and the second magnetic coupling member (450) are parallel and spaced apart.

3. The control valve according to claim 2, characterized in that: The first magnetic coupling member (300) and the second magnetic coupling member (450) are parallel and spaced apart, and the first magnetic coupling member (300) is arranged on the end surface of the shaft section of the valve core (200), and the second magnetic coupling member (450) is arranged on the end surface of the rotating member (420).

4. The control valve according to claim 3, characterized in that: The first magnetic coupling component (300) includes a plurality of first magnetic components, and the plurality of first magnetic components surround the rotation axis of the first magnetic coupling component (300). The second magnetic coupling component (450) includes a plurality of second magnetic components, and the plurality of second magnetic components surround the rotation axis of the second magnetic coupling component (450).

5. The control valve according to claim 2, characterized in that: The valve body (100) comprises a valve body (110) and an end cover (120), the valve core (200) is rotatably disposed in the cavity of the valve body (110), the end cover (120) is disposed on the valve body (110), the shell (410) is disposed on the end cover (120), and the shell (410) and the valve body (110) are located on opposite sides of the end cover (120).

6. The control valve according to claim 5, characterized in that The end cover (120) comprises an end cover body (121) and an isolation sleeve (122) connected to the end cover body (121); the end cover body (121) is arranged on the valve body (110); the shell (410) is arranged on the end cover body (121); the shell (410) and the valve body (100) are located on opposite sides of the end cover body (121); The valve core (200) has a limiting shaft (210), the isolation sleeve (122) is provided with a limiting groove (1221), the first magnetic coupling component (300) is arranged on the limiting shaft (210), and the first magnetic coupling component (300) surrounds the limiting shaft (210), and the limiting shaft (210) is matched with the limiting groove (1221).

7. The control valve according to claim 6, characterized in that The second magnetic coupling component (450) surrounds the outside of the isolation sleeve (122), and the first magnetic coupling component (300) is located inside the isolation sleeve (122).

8. The control valve according to claim 6, characterized in that: The valve body (110) has a limiting portion (111), and the limiting portion (111) cooperates with an inner wall of an end of the valve core (200) away from the limiting shaft (210).

9. The control valve according to claim 7 or 8, characterized in that: The control valve further comprises a sealing ring (500), wherein the sealing ring (500) is arranged between the housing (410) and the end cover (120), and the sealing ring (500) is in a compressed state.

10. The control valve according to claim 9, characterized in that The first magnetic coupling member (300) and the valve core (200) are integrally injection-molded, and / or the magnetic member (430) and the second magnetic coupling member (450) are integrally injection-molded with the rotating member (420).

11. The control valve according to any one of claims 1 to 8, characterized in that: The rotation axis of the valve core (200) and the rotation axis of the rotating member (420) are collinear.

12. The control valve according to any one of claims 1 to 8, characterized in that: The rotation axis of the magnetic member (430) passes through the angular position sensor (441).

13. A thermal management system, characterized in that: A control valve comprising the control valve according to any one of claims 1 to 12.

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