Actuator for valve, electronic valve and vehicle

Abstract

The actuator for the valve comprises a motor, a magnetic sensor and a transmission assembly, the transmission assembly comprises a transmission piece and a magnetic piece, the transmission piece comprises a transmission part and at least one installation part, the transmission part is connected with the motor so as to be driven by the motor to rotate, and the magnetic piece is arranged on the transmission part. The mounting part is arranged on the side, away from the motor, of the transmission part and comprises a plurality of elastic pieces arranged at intervals. At least one mounting hole is formed in the magnetic part, the magnetic part is matched with the magnetic sensor, the mounting part is inserted into the mounting hole and is in limiting fit with the magnetic part in the circumferential direction of the transmission part, and the transmission part is in limiting fit with the magnetic part in the axial direction of the transmission part. According to the actuator for the valve, in the installation process of the magnetic piece, the installation part can generate certain elastic deformation, and the damage risk of the magnetic piece in the installation process can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of drive structure technology, and in particular to a valve actuator, an electronic valve, and a vehicle. Background Technology

[0002] In related technologies, the transmission assembly in a valve actuator is used to transmit the torque of a motor to drive the valve core to rotate. The transmission assembly includes a transmission component and a magnetic component. The transmission component transmits torque, while the magnetic component, in conjunction with a magnetic sensor, determines the rotation angle and motion state of the motor's output shaft. However, in some technologies, the installation method of the transmission component and the magnetic component is not designed properly, which may damage the magnetic component. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a valve actuator, an electronic valve, and a vehicle, in which the mounting part can undergo a certain degree of elastic deformation during the installation of magnetic components, thereby reducing the risk of damage to the magnetic components during installation.

[0004] This application provides a valve actuator, including a motor, a magnetic sensor, and a transmission assembly. The transmission assembly includes: a transmission member, which includes a transmission portion and at least one mounting portion. The transmission portion is connected to the motor and is driven to rotate by the motor. The mounting portion is located on the side of the transmission portion away from the motor and includes a plurality of elastic members spaced apart from each other; and a magnetic member, which has at least one mounting hole and cooperates with the magnetic sensor. The mounting portion is inserted into the mounting hole and engages with the magnetic member in the circumferential direction of the transmission member. The transmission member and the magnetic member also engage in an axial upper limit cooperation with each other in the transmission member.

[0005] In the above technical solution, by setting the mounting part to include multiple elastic elements spaced apart from each other, there is a certain deformation space between the multiple elastic elements. When the mounting part is inserted into the mounting hole, the multiple elastic elements will elastically deform in the direction of mutual approach under the force of the magnetic element, so that the mounting part can be smoothly inserted into the mounting hole. This reduces the force between the mounting part and the magnetic element, and to a certain extent avoids damage to the magnetic element by the mounting part, thereby reducing the risk of damage to the magnetic element during the installation process and improving the assembly yield of the transmission component. Secondly, the insertion and mating of the magnetic element and the mounting part simplifies the installation method of the magnetic element and the transmission component, effectively reducing production costs and assembly difficulty.

[0006] In some embodiments of this application, the outer surface of the free end of each of the elastic elements forms a first guide surface, the first guide surface being adapted to guide the mounting portion into the mounting hole; and / or, a portion of the hole wall of the mounting hole adjacent to the transmission portion forms a second guide surface, the second guide surface being adapted to guide the mounting portion into the mounting hole.

[0007] In some embodiments of this application, the mounting hole is a through hole, and the transmission member further includes at least one protrusion, which is disposed on the outer side corresponding to the elastic member and abuts against the side of the magnetic member away from the transmission member.

[0008] In some embodiments of this application, the outer peripheral profile cross-sectional area of ​​the transmission part is greater than the maximum outer peripheral profile cross-sectional area of ​​the mounting part, and the transmission part abuts against the side of the magnetic element away from the protrusion.

[0009] In some embodiments of this application, the side of the protrusion opposite to the elastic member has a third guide surface, which is adapted to guide the mounting portion into the mounting hole.

[0010] In some embodiments of this application, the transmission component is a single piece; and / or, the transmission component is a plastic part.

[0011] In some embodiments of this application, the maximum outer peripheral contour cross-sectional shape of the mounting portion and the cross-sectional shape of the mounting hole are both non-circular.

[0012] In some embodiments of this application, the wall of the mounting hole includes two opposing first mating surfaces and two opposing second mating surfaces, wherein the first mating surfaces are planes and the second mating surfaces are curved surfaces.

[0013] Secondly, this application provides an electronic valve, including a valve core and a valve actuator according to the first aspect embodiment of the present invention. The valve actuator further includes a driven member, and the transmission member is poweredly connected to the valve core through the driven member.

[0014] In the above technical solution, by adopting the valve actuator described above, the cost of electronic valves can be reduced and the operational accuracy of electronic valves can be improved.

[0015] Thirdly, embodiments of this application provide a vehicle including an electronic valve according to the second aspect of the present invention described above.

[0016] In the above technical solution, the performance of the vehicle can be improved by using the aforementioned electronic valve.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a partial structural schematic diagram of a valve actuator provided in some embodiments of this application;

[0020] Figure 2 This is a schematic diagram of a transmission assembly provided in some embodiments of this application;

[0021] Figure 3 yes Figure 2 A front view of the transmission assembly described herein;

[0022] Figure 4 yes Figure 3 A cross-sectional view of the transmission assembly described herein;

[0023] Figure 5 yes Figure 2 A side view of the transmission assembly described herein;

[0024] Figure 6 yes Figure 2 Another side view of the transmission assembly described herein;

[0025] Figure 7 This is a schematic diagram of a transmission component provided in some embodiments of this application;

[0026] Figure 8 This is a schematic diagram of a magnetic component provided in some embodiments of this application;

[0027] Figure 9 yes Figure 8 Another schematic diagram of the magnetic component described herein;

[0028] Figure 10 This is a schematic diagram of a vehicle provided in some embodiments of this application.

[0029] Figure label:

[0030] Vehicle 400, Electronic Valve 300, Valve Actuator 200

[0031] Transmission assembly 100, motor 101, central axis 10

[0032] Transmission component 1, transmission part 11, mating hole 11a, mounting part 12, elastic element 121, first guide surface 121a, protrusion 13, third guide surface 13a,

[0033] Magnetic component 2, mounting hole 21, second guide surface 21a, first mating surface 211, second mating surface 212. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0035] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0036] Hereinafter, with reference to the accompanying drawings, a valve actuator 200 according to an embodiment of the present invention will be described.

[0037] like Figures 1-4 As shown, the valve actuator 200 according to an embodiment of the present invention includes a motor 101, a magnetic sensor, and a transmission assembly 100. The transmission assembly 100 includes a transmission member 1 and a magnetic member 2. The transmission member 1 includes a transmission part 11 and at least one mounting part 12. The transmission part 11 is connected to the motor 101 and is driven to rotate by the motor 101. The mounting part 12 is located on the side of the transmission part 11 away from the motor 101 and includes a plurality of elastic members 121 spaced apart from each other. The magnetic member 2 has at least one mounting hole 21 and cooperates with the magnetic sensor. The mounting part 12 is inserted into the mounting hole 21 and is in a circumferential upper limit cooperation with the magnetic member 2 in the transmission member 1. The transmission member 1 and the magnetic member 2 are in an axial upper limit cooperation in the transmission member.

[0038] Therefore, by providing the mounting part 12 with multiple elastic elements 121 spaced apart from each other, there is a certain deformation space between the multiple elastic elements 121. When the mounting part 12 is inserted into the mounting hole 21, the multiple elastic elements 121 will elastically deform in the direction of mutual approach under the force of the magnetic element 2. That is, during the elastic deformation process, the cross-sectional area of ​​the outer periphery of the mounting part 12 can be reduced, so that the mounting part 12 can be smoothly inserted into the mounting hole 21. Rigid contact between the mounting part 12 and the magnetic element 2 can be avoided, the squeezing force between the mounting part 12 and the magnetic element 2 can be reduced, and damage (e.g., cracking) to the magnetic element 2 by the mounting part 12 can be avoided to a certain extent, thereby reducing the risk of breakage of the magnetic element 2. This reduces the risk of damage to the magnetic element 2 during the installation process and improves the assembly yield of the transmission assembly 100. It should be noted that, in conjunction with Figure 4 and Figure 5 The cross-sectional area of ​​the outer periphery of the mounting part 12 can be understood as the area enclosed by the closed shape corresponding to the outer periphery of the mounting part 12, with the plane perpendicular to the central axis 10 of the transmission member 1 as the projection plane.

[0039] The mounting part 12 is inserted into the mounting hole 21, and the mounting part and the magnetic component 2 are in a circumferential upper limit fit with the transmission component 1. The transmission component 1 and the magnetic component 2 are in an axial upper limit fit with the transmission component, so as to realize that the magnetic component 2 is stably set on the mounting part 12. The mounting part 12 can drive the magnetic component 2 to rotate synchronously, and to a certain extent, it can prevent the magnetic component 2 from falling off when rotating with the transmission component 1, thus ensuring that the connection between the magnetic component 2 and the transmission component 1 is stable and reliable.

[0040] For example, the transmission component 1 includes a mounting portion 12, and the magnetic component 2 has a mounting hole 21. The mounting portion 12 is inserted into the mounting hole 21 to achieve the installation and fixation between the magnetic component 2 and the transmission component 1. For example, the mounting portion 12 is snapped onto the wall of the mounting hole 21 to fix the magnetic component 2. Alternatively, the transmission component 1 includes multiple mounting portions 12, and the magnetic component 2 has multiple mounting holes 21. The mounting portions 12 correspond one-to-one with the mounting holes 21, and each mounting portion 12 is inserted into the corresponding mounting hole 21 to achieve the installation and fixation between the magnetic component 2 and the transmission component 1. The cooperation of multiple mounting portions 12 with corresponding mounting holes 21 can further improve the stability of the cooperation between the magnetic component 2 and the mounting portions 12.

[0041] Optionally, after the magnetic component 2 is installed in the mounting part 12, a plurality of elastic components 121 are engaged with or clearance-fitted with the wall of the mounting hole 21 to reduce the risk of damage to the magnetic component by the mounting part 21.

[0042] For example, the valve actuator 200 also includes a housing defining a mounting cavity, within which the motor 101, magnetic sensor, and transmission assembly 100 are disposed. The transmission assembly 100 includes a transmission member 1 and a magnetic member 2. The transmission member 1 includes a connected transmission section 11 and a mounting section 12. The magnetic member 2 is mounted on the mounting section 12 and has at least one pair of magnetic poles. A magnetic sensor (e.g., a Hall effect sensor) is disposed adjacent to the magnetic member 2 and engages with it. The output shaft of the motor 101 is fixedly connected to the transmission section 11, allowing the motor 101 to drive the transmission member 1 to rotate, which in turn drives the magnetic member 2 to rotate. Thus, the magnetic poles on the magnetic member 2 will alternately pass through the sensing area of ​​the magnetic sensor as the magnetic member 2 rotates. Taking a pair of magnetic poles as an example, when the magnetic member 2 rotates one revolution, the magnetic sensor will sense two pulse signals. By measuring the number of pulse signals over a certain time period, the number of revolutions (e.g., the number of revolutions of the motor 101 rotor) and the rotational speed of the magnetic member 2 driven by the output shaft of the motor 101 can be obtained.

[0043] Taking the valve actuator 200 used in the electronic valve 300 as an example, the electronic valve 300 also includes a valve core. The valve actuator 200 is located on one axial side of the valve core and also includes a driven member connected to the valve core, which is housed within a mounting cavity. Helical teeth are formed on the outer periphery of the transmission part 11 (the transmission part 11 is formed as a worm gear or helical gear), and the driven member is constructed as a worm wheel. The transmission part 11 meshes with the driven member. Thus, the motor 101 drives the transmission part 1 to rotate, thereby rotating the driven member. The valve core and the driven member rotate synchronously, achieving the switching connection between the flow channel and the valve port of the electronic valve 300. Furthermore, the magnetic element 2, in conjunction with a magnetic sensor, can obtain the number of rotations and the rotation speed of the output shaft of the motor 101, thereby enabling control of the valve core's rotation speed and angle, improving the control accuracy of the electronic valve 300.

[0044] Optionally, the valve actuator 200 is not limited to driving the valve core, but can also be used to drive the movement of other structures or components. For example, the valve actuator 200 can also be used in a camera assembly, whereby the valve actuator 200 can drive the camera to move to adjust the shooting angle.

[0045] In some technologies, the installation methods for transmission components and magnetic components are mostly interference fits or bonding with adhesives. Since the magnetic components have low hardness, interference fits may damage them during installation, or adhesive bonding increases production costs. In the embodiments of this application, the mounting portion 12 can undergo elastic deformation to install the magnetic component 2, which can effectively reduce damage to the magnetic component 2 caused by the mounting portion 12, improve the yield rate, and the insertion fit between the magnetic component 2 and the mounting portion 12 enables the installation of the magnetic component 2 and the transmission component 1, effectively reducing production costs and assembly difficulty.

[0046] In the above technical solution, by setting the mounting part 12 to include multiple elastic elements 121 spaced apart from each other, there is a certain deformation space between the multiple elastic elements 121. When the mounting part 12 is inserted into the mounting hole 21, the multiple elastic elements 121 will elastically deform in the direction of mutual approach under the force of the magnetic element 2, so that the mounting part 12 can be smoothly inserted into the mounting hole 21. This can reduce the assembly squeezing force between the mounting part 12 and the magnetic element 2, and can avoid damage to the magnetic element 2 by the mounting part 12 to a certain extent, thereby reducing the risk of damage to the magnetic element 2 during the installation process and improving the assembly yield of the transmission component 100. Secondly, the magnetic element 2 and the mounting part 12 are inserted and matched, so the installation method of the magnetic element 2 and the transmission component 1 is simple, which can effectively reduce production costs and assembly difficulty.

[0047] In the description of this application, the axial direction of the transmission member 1 is... Figure 4 The extension direction of the central axis 10 of the transmission component 1 is the circumferential direction of the transmission component 1 around the central axis 10 of the transmission component 1; "radial" can be understood as the radial direction of the transmission component 1, that is, the direction through the central axis 10 of the transmission component 1 on the cross section of the transmission component 1, and the radial direction of the transmission component 1 is perpendicular to the axial direction of the transmission component 1.

[0048] Optionally, the multiple elastic elements 121 are configured such that, during the entire installation process of the magnetic element 2, when the multiple elastic elements 121 undergo maximum elastic deformation under the force of the magnetic element 2, there is still a deformation margin. That is, after the multiple elastic elements 121 undergo maximum elastic deformation under the force of the magnetic element 2, they still have a certain amount of elastic deformation. In other words, the multiple elastic elements 121 have not yet reached the limit deformation state and have the ability to deform further. This allows the multiple elastic elements 121 to have a suitable amount of deformation so that the mounting part 12 can have a suitable size (outer peripheral contour cross-sectional area) to fit into the mounting hole 21 after elastic deformation. At the same time, it can avoid rigid fit between the mounting part 12 and the mounting hole 21, and can effectively reduce the risk of breakage or damage to the magnetic element 2.

[0049] Optionally, combined Figure 4 and Figure 6 The transmission part 11 has a mating hole 11a, into which the output shaft of the motor 101 is inserted to fix the transmission member 1 and the output shaft of the motor 101. Optionally, the mating hole 11a extends along the axial direction of the transmission member 1. In the axial direction of the transmission member 1, the mating length between the output shaft of the motor 101 and the transmission part 11 is greater than or equal to half the axial length of the transmission part 11. Thus, the output shaft of the motor 101 and the transmission part 11 have a suitable mating length, which can improve the support capacity of the output shaft of the motor 101 for the transmission member 1, thereby ensuring the reliable operation of the transmission member 1.

[0050] In some embodiments of this application, combined with Figure 2 Each elastic element 121 has a first guide surface 121a formed on the outer surface of its free end, which is adapted to guide the mounting part 12 into the mounting hole 21; and / or, a portion of the hole wall of the mounting hole 21 adjacent to the transmission part 11 forms a second guide surface 21a, which is adapted to guide the mounting part 12 into the mounting hole 21.

[0051] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0052] In some examples, combined Figure 2 Each elastic element 121 has a first guide surface 121a formed on the outer surface of its free end. The first guide surface 121a is adapted to guide the mounting part 12 into the mounting hole 21. Thus, the first guide surface 121a can guide the free end of the corresponding elastic element 121 to cooperate with the hole wall of the mounting hole 21, so that the mounting part 12 can be quickly and accurately inserted into the mounting hole 21.

[0053] For example, combining Figure 4 In the axial direction of the transmission member 1, the end of each elastic element 121 away from the transmission part 11 is a free end, and the outer surface of the free end of each elastic element 121 is the side surface of the free end of each elastic element 121 away from the central axis 10 of the transmission member 1. The outer surface of the free end of each elastic element 121 forms a first guide surface 121a. In the axial direction of the transmission member 1, the first guide surface 121a is inclined in the direction away from the transmission part 11 and towards the direction close to the central axis of the transmission member 1, so that the first guide surface 121a can guide the mounting part 12 to be accurately inserted into the mounting hole 21.

[0054] Optionally, on the longitudinal section of the transmission component 1, the first guide surface 121a can be formed as a slanted curve or a slanted straight line, and the longitudinal section passes through the central axis 10 of the transmission component 1.

[0055] In some examples, combined Figure 2 The portion of the wall of the mounting hole 21 adjacent to the transmission part 11 forms a second guide surface 21a. The second guide surface 21a is adapted to guide the mounting part 12 into the mounting hole 21. Thus, the second guide surface 21a can guide the magnetic element 2 to cooperate with the mounting part 12 so that the magnetic element 2 can be accurately assembled into the mounting part 12.

[0056] For example, combining Figure 4The portion of the wall of the mounting hole 21 adjacent to the transmission part 11 forms a second guide surface 21a. In the axial direction of the transmission member 1, the second guide surface 21a is inclined in a direction away from the transmission part 11 and toward the central axis of the transmission member 1, so that the second guide surface 21a can guide the magnetic member 2 to be mounted on the mounting part 12.

[0057] Optionally, on the longitudinal section of the transmission component 1, the first guide surface 121a can be formed as a slanted curve or a slanted straight line.

[0058] In some embodiments of this application, combined with Figure 2 and Figure 4 The mounting hole 21 is a through hole, and the transmission component 1 also includes at least one protrusion 13. The protrusion 13 is disposed on the outer side of the corresponding elastic member 121 and abuts against the side of the magnetic member 2 away from the transmission part 11. Thus, when the mounting part 12 is inserted into the mounting hole 21, the protrusion 13 and the magnetic member 2 abut against each other, which can prevent the magnetic member 2 from falling out of the mounting part 12, so as to achieve a limiting fit between the transmission component 1 and the magnetic member 1 in the axial direction of the transmission component 1, thereby ensuring the stability and reliability of the magnetic member 2 in the transmission component 1. Optionally, the number of protrusions 13 can be less than or equal to the number of elastic members 121.

[0059] The mounting portion 12 includes multiple elastic elements 121 spaced apart from each other, creating a certain gap between them to allow for deformation. When the mounting portion 12 is inserted into the mounting hole 21, the protrusion 13 engages with the wall of the mounting hole 21. The multiple elastic elements 121 undergo elastic deformation under the compressive force of the magnetic element 2, and the protrusion 13 moves along with the corresponding elastic element 121 towards the central axis of the mounting portion 12. This facilitates the insertion of the mounting portion 12 into the mounting hole 21, reducing damage to the magnetic element 2 caused by the protrusion 13 and preventing the magnetic element 2 from detaching. It is understood that, combined with... Figure 4 and Figure 5 The cross-sectional area of ​​the outer periphery of the protrusion 13 and the mounting part 12 as a whole can be understood as the area enclosed by the closed shape corresponding to the outer periphery of the protrusion 13 and the mounting part 12, with the plane perpendicular to the central axis 10 of the transmission member 1 as the projection plane. Then, the maximum cross-sectional area of ​​the outer periphery of the protrusion 13 and the mounting part 12 as a whole can be understood as the maximum area enclosed by the closed shape corresponding to the outer periphery of the protrusion 13 and the mounting part 12.

[0060] Optionally, combined Figure 4The cross-sectional area of ​​the outer periphery of the multiple elastic elements 121 is less than or equal to the cross-sectional area of ​​the mounting hole 21, and the maximum cross-sectional area of ​​the outer periphery of the multiple elastic elements 121 and the protrusion 13 is greater than the cross-sectional area of ​​the mounting hole 21. Therefore, when the magnetic element 2 is installed in the mounting part 12, the outer surfaces of the multiple elastic elements 121 can cooperate with the hole wall of the mounting hole 21, preventing the multiple elastic elements 121 from squeezing or damaging the magnetic element 2. At the same time, the protrusion 13 can restrict the magnetic element 2 from falling out of the mounting part 12.

[0061] For example, combining Figure 2 and Figure 4 The transmission assembly 100 includes a transmission member 1 and a magnetic member 2. The transmission member 1 includes a connected transmission section 11 and a mounting section 12. The outer side of the transmission section 11 has helical teeth to facilitate engagement between the transmission section 11 and other components (e.g., driven components) of the valve actuator 200. The mounting section 12 includes two spaced elastic members 121, which are symmetrically arranged with respect to the central axis 10 of the transmission member 1. A deformation space is defined between the two elastic members 121. Each elastic member 121 has a protrusion 13 on its opposite side, and each elastic member 121 and its corresponding protrusion 13 can be configured as a snap-fit ​​structure. The magnetic member 2 is formed as a ring structure, and a through mounting hole 21 is formed at the center of the magnetic member 2. When the magnetic component 2 is installed in the mounting part 12, the wall of the mounting hole 21 presses against the protrusion 13, causing the two elastic components 121 to elastically deform in a direction that brings them closer together. The maximum outer peripheral cross-sectional area of ​​the two elastic components 121 and the two protrusions 13 gradually decreases and becomes equal to the cross-sectional area of ​​the mounting hole 21. Then, the mounting hole 21 passes through the mounting part 12, and the wall of the mounting hole 21 engages with the sidewalls of the two elastic components 121. The two protrusions 13 abut against the side of the magnetic component 2 away from the transmission part 11. Thus, through the deformation process of the elastic component 121, the force between the magnetic component 2 and the mounting part 12 can be reduced, avoiding a rigid fit between the magnetic component 2 and the mounting part 12. This reduces the occurrence of cracking or damage during the installation of the magnetic component 2 in the mounting part 12, ensuring synchronous movement of the magnetic component 2 and the transmission part 1, and preventing the magnetic ring from falling off during rotation.

[0062] Of course, in other embodiments of this application, the limiting and cooperating method between the transmission member 1 and the magnetic member 2 in the axial direction of the transmission member 1 is not limited to this. For example, axial limiting can also be achieved by limiting pins passing through the magnetic member 2 and the transmission member 1.

[0063] In some embodiments of this application, combined with Figure 4The cross-sectional area of ​​the outer periphery of the transmission part 11 is larger than the maximum cross-sectional area of ​​the outer periphery of the mounting part 12, and the transmission part 11 abuts against the side of the magnetic member 2 away from the protrusion 13. Therefore, the magnetic member 2 abuts between the transmission part 11 and the protrusion 13, which improves the axial stability of the magnetic member 2 in the transmission part 1. For example, combined with... Figure 4 The cross-sectional area of ​​the outer periphery of the transmission part 11 is equal to the cross-sectional area of ​​the outer periphery of the magnetic part 2.

[0064] In some embodiments of this application, combined with Figure 4 The protrusion 13 has a third guide surface 13a on the side opposite to the elastic member 121. The third guide surface 13a is adapted to guide the mounting part 12 into the mounting hole 21. Thus, the protrusion 13 can guide the mounting part 12 into the mounting hole 21, improving the accuracy of the mounting part 12's insertion into the mounting hole 21. Secondly, during installation, the third guide surface 13a can slide against the hole wall of the magnetic member 2, causing the corresponding elastic member 121 to gradually deform. The compressive force on the magnetic member 2 gradually increases, which to some extent avoids excessive changes in the reaction force on the magnetic member 2, preventing damage (e.g., cracking), thereby improving the reliability of the magnetic member 2's assembly into the mounting part 12.

[0065] For example, combining Figure 4 The protrusion 13 has a third guide surface 13a on the side away from the elastic member 121. The third guide surface 13a is inclined in a direction away from the central axis of the transmission member 1 and close to the transmission part 11. The third guide surface 13a is a curved surface so that the third guide surface 13a can guide the magnetic member 2 to be installed on the mounting part 12.

[0066] Optionally, the structure of the third guide surface 13a is not limited to this; for example, the third guide surface 13a can be an inclined plane. In other words, on the longitudinal section of the transmission member 1, the third guide surface 13a can be formed as an inclined curve or an inclined straight line.

[0067] In some embodiments of this application, the transmission component 1 is a single piece; and / or, the transmission component 1 is a plastic part. Therefore, by making the transmission component 1 a single piece, the processing difficulty of the transmission component 1 can be simplified, and the structural strength of the transmission component 1 can be improved. For example, by integrally injection molding the transmission component 1, the processing cost of the transmission component 1 can be reduced. By making the transmission component 1 a plastic part, the transmission component 1 will not affect the magnetic field of the magnetic component 2, thereby improving the accuracy of the cooperation between the magnetic component 2 and the magnetic sensor.

[0068] In some embodiments of this application, combined with Figure 7 and Figure 8The maximum outer peripheral contour cross-sectional shape of the mounting part 12 and the cross-sectional shape of the mounting hole 21 are both non-circular. As a result, the mounting part 12 can be circumferentially limited to the wall of the mounting hole 21, that is, the mounting part 12 and the magnetic component 2 are circumferentially limited to each other, so as to achieve circumferential stability of the magnetic component 2 and improve the accuracy of the cooperation between the magnetic component 2 and the magnetic sensor.

[0069] Of course, in other embodiments of this application, the limiting cooperation between the mounting part 12 and the magnetic element 2 in the circumferential direction of the transmission member 1 is not limited to this. For example, circumferential limiting can also be achieved by a limiting pin passing through the magnetic element 2 and the mounting part 12.

[0070] In some embodiments of this application, combined with Figure 8 and Figure 9 The wall of the mounting hole 21 includes two opposing first mating surfaces 211 and two opposing second mating surfaces 212. The first mating surfaces 211 are planar, and the second mating surfaces 212 are curved. Thus, the first mating surfaces 211 and 212 engage with the mounting portion 12, achieving a circumferential limiting fit between the mounting portion 12 and the mounting hole 21. The mounting portion 12 can restrict the rotation of the magnetic component 2 relative to the mounting portion 12, thereby improving the accuracy of the engagement between the magnetic component 2 and the magnetic sensor.

[0071] For example, combining Figure 2 , Figure 7 and Figure 9 The mounting portion 12 includes two spaced-apart elastic members 121, the outer surfaces of which are curved. The wall of the mounting hole 21 includes two opposing first mating surfaces 211 and two opposing second mating surfaces 212. The first mating surfaces 211 are planar, and the second mating surfaces 212 are curved. The outer surfaces of the two elastic members 121 are identical to the second mating surfaces 212, such that both are arc surfaces and the corresponding radii of the outer surfaces of the two elastic members 121 and the second mating surfaces 212 are equal. When the magnetic member 2 is mounted on the mounting portion 12, the outer surfaces of the two elastic members 121 respectively abut against the corresponding second mating surfaces 212, and the sidewalls of the two elastic members 121 located on the same side abut against the corresponding first mating surfaces 211. Thus, the wall of the mounting hole 21 and the mounting portion 12 are mutually restrained and fitted along the circumferential direction of the mounting portion 12. Of course, there can be three or more elastic elements 121. For example, multiple elastic elements 121 can be arranged at intervals along the circumference of the transmission element 1.

[0072] Secondly, embodiments of this application provide an electronic valve 300, including a valve core and a valve actuator 200 according to the first aspect embodiment of this utility model. The valve actuator 200 further includes a driven member, and a transmission member 1 is poweredly connected to the valve core through the driven member. For example, the driven member is fixedly connected to the valve core (e.g., splined), and the driven member meshes with the transmission member 1. Thus, the transmission member 1 rotates to drive the driven member to rotate, and the driven member rotates synchronously with the valve core to realize the switching connection between the flow channel of the valve core and the valve port.

[0073] In the above technical solution, by adopting the valve actuator 200, the cost of the electronic valve 300 can be reduced and the operating accuracy of the electronic valve 300 can be improved.

[0074] Optionally, the valve actuator 200 also includes a housing defining a mounting cavity in which the motor 101, magnetic sensor, and transmission assembly 100 are disposed. A support structure is formed within the housing, which can support the periphery of the mounting portion 12 away from the transmission portion 11, thereby improving the stability of the transmission assembly 100 disposed within the housing.

[0075] It is understood that the electronic valve 300 is an electronic water valve, and the electronic water valve also includes a circuit board (e.g., a PCB board). The circuit board is suitable for external electrical connection or signal connection, and the circuit board is suitable for electrical connection with the motor 101 so that the motor 101 can be controlled to operate after the circuit board is powered on.

[0076] Thirdly, embodiments of this application provide a vehicle 400, including an electronic valve 300 according to the second aspect embodiment of the present invention described above.

[0077] In the above technical solution, the performance of the vehicle 400 can be improved by adopting the aforementioned electronic valve 300.

[0078] For example, vehicle 400 can be a new energy vehicle. In some embodiments, the new energy vehicle can be a pure electric vehicle with an electric motor as the main driving force. In other embodiments, the new energy vehicle can also be a hybrid vehicle with both an internal combustion engine and an electric motor as the main driving force. Regarding the internal combustion engine and electric motor mentioned in the above embodiments that provide driving power for the new energy vehicle, the internal combustion engine can use gasoline, diesel, hydrogen, etc. as fuel, and the way to provide electrical energy to the electric motor can be a power battery, hydrogen fuel cell, etc., without special limitation. It should be noted that this is merely an exemplary description of the structure of new energy vehicles, etc., and is not intended to limit the protection scope of this utility model.

[0079] In the description of this utility model, it should be understood that the terms "center," "length," "upper," "lower," "front," "rear," "inner," "outer," "axial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0080] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0081] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0082] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An actuator for a valve, characterized in that The actuator comprises an electric motor, a magnetic sensor and a transmission assembly, the transmission assembly comprising: a transmission member comprising a transmission portion and at least one mounting portion, the transmission portion being connected to the electric motor for being driven to rotate by the electric motor, the mounting portion being provided on a side of the transmission portion away from the electric motor and comprising a plurality of elastic members arranged spaced apart from each other; a magnetic member formed with at least one mounting hole, the magnetic member cooperating with the magnetic sensor, the mounting portion being inserted into the mounting hole and being limited in position in the circumferential direction of the transmission member with the magnetic member, the transmission member being limited in position in the axial direction of the transmission member with the magnetic member.

2. The actuator for valve according to claim 1, wherein an outer side surface of a free end of each of the elastic members forms a first guide surface adapted to guide the mounting portion into the mounting hole; and / or a portion of a hole wall of the mounting hole adjacent to the transmission portion forms a second guide surface adapted to guide the mounting portion into the mounting hole.

3. The valve actuator of claim 1, wherein The mounting hole is a through hole, the transmission member further comprising at least one protruding portion provided on an outer side surface corresponding to the elastic member and abutting against a side of the magnetic member away from the transmission portion.

4. The valve actuator of claim 3, wherein An outer peripheral profile cross-sectional area of the transmission portion is greater than a maximum outer peripheral profile cross-sectional area of the mounting portion, and the transmission portion abuts against a side of the magnetic member away from the protruding portion.

5. The valve actuator of claim 3, wherein A side of the protruding portion away from the elastic member has a third guide surface adapted to guide the mounting portion into the mounting hole.

6. The actuator for valve according to any one of claims 1-5, wherein the transmission member is a one-piece member; and / or the transmission member is a plastic member.

7. An actuator for a valve according to any one of claims 1-5, characterized in that The maximum outer peripheral profile cross-sectional shape of the mounting portion and the cross-sectional shape of the mounting hole are both non-circular.

8. The valve actuator of claim 7, wherein The hole wall of the mounting hole comprises two oppositely arranged first engaging surfaces and two oppositely arranged second engaging surfaces, the first engaging surfaces being flat surfaces, and the second engaging surfaces being curved surfaces.

9. An electronic valve characterized by The actuator for valve according to any one of claims 1-8 further comprises a driven member, the transmission member being connected in power to the valve core through the driven member.

10. A vehicle characterized by comprising: The electronic valve according to claim 9.

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