CN224079681U - Valve actuator, electronic valve, and vehicle - Google Patents

Abstract

The utility model discloses an actuator for a valve, an electronic valve and a vehicle, wherein the actuator for the valve comprises a motor, a magnetic sensor and a transmission assembly, the transmission assembly comprises a transmission part and a magnetic part, the transmission part comprises a transmission part and at least one mounting part, the transmission part is connected with the motor to be driven by the motor to rotate, the mounting part is arranged on one side of the transmission part far away from the motor and comprises a plurality of elastic parts which are arranged at intervals, the magnetic part is provided with at least one mounting hole, the magnetic part is matched with the magnetic sensor, the mounting part is inserted into the mounting hole and is in limit fit with the magnetic part in the circumferential direction of the transmission part, and the transmission part and the magnetic part are in limit fit in the axial direction of the transmission part. According to the valve actuator provided by the embodiment of the utility model, the mounting part can generate certain elastic deformation in the mounting process of the magnetic part, so that the damage risk of the magnetic part in the mounting process can be reduced.

Description

Valve actuator, electronic valve, and vehicle

Technical Field

The utility model relates to the technical field of driving structures, in particular to an actuator for a valve, an electronic valve and a vehicle.

Background

In the related art, a transmission assembly in a valve actuator is used to transmit torque of a motor to drive a valve core to rotate. The transmission assembly comprises a transmission part and a magnetic part, the transmission part is used for transmitting torque, the magnetic part is matched with the magnetic sensor, and the rotation angle and the motion state of an output shaft of the motor can be judged. However, in some technologies, the mounting manner of the transmission member and the magnetic member is not reasonable enough, and the magnetic member may be damaged.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the valve actuator, the electronic valve and the vehicle, wherein the mounting part can generate certain elastic deformation in the mounting process of the magnetic part, and the damage risk of the magnetic part in the mounting process can be reduced.

The embodiment of the application provides an actuator for a valve, which comprises a motor, a magnetic sensor and a transmission assembly, wherein the transmission assembly comprises a transmission part and at least one mounting part, the transmission part is connected with the motor so as to be driven by the motor to rotate, the mounting part is arranged on one side of the transmission part far away from the motor and comprises a plurality of elastic parts which are arranged at intervals, the magnetic part is provided with at least one mounting hole, the magnetic part is matched with the magnetic sensor, the mounting part is inserted into the mounting hole and is in limit fit with the magnetic part in the circumferential direction of the transmission part, and the transmission part and the magnetic part are in limit fit in the axial direction of the transmission part.

In the above technical scheme, including a plurality of elastic components that set up each other at intervals through setting up the installation department, then have certain deformation space between a plurality of elastic components, when the installation department inserts and joins in marriage in the mounting hole, a plurality of elastic components receive the effort that the magnetic component can take place elastic deformation towards the direction that is close to each other to in the mounting hole, so that the installation department can insert and join in marriage in the mounting hole smoothly, can reduce the effort between installation department and the magnetic component, can avoid the damage magnetic component of installation department to a certain extent, thereby can reduce the damage risk of magnetic component in the installation, improve drive assembly's equipment yield. Secondly, the magnetic piece is matched with the mounting part in an inserting way, so that the mounting mode of the magnetic piece and the transmission piece is simple, and the production cost and the assembly difficulty can be effectively reduced

In some embodiments of the application, the outer side of the free end of each of the resilient members forms a first guide surface adapted to guide the mounting portion into the mounting hole and/or a portion of the wall of the mounting hole adjacent the driving portion forms a second guide surface adapted to guide the mounting portion into the mounting hole.

In some embodiments of the present application, the mounting hole is a through hole, and the transmission member further includes at least one protruding portion, where the protruding portion is disposed on an outer side surface corresponding to the elastic member and abuts against a side of the magnetic member away from the transmission portion.

In some embodiments of the application, the peripheral contoured cross-sectional area of the driving portion is greater than the largest peripheral contoured cross-sectional area of the mounting portion, and the driving portion abuts against a side of the magnetic member remote from the boss.

In some embodiments of the application, the side of the projection facing away from the elastic element has a third guide surface, which is suitable for guiding the mounting part into the mounting hole.

In some embodiments of the application, the transmission member is a unitary piece and/or the transmission member is a plastic piece.

In some embodiments of the application, both the maximum peripheral profile cross-sectional shape of the mounting portion and the cross-sectional shape of the mounting hole are non-circular.

In some embodiments of the present application, the hole wall of the mounting hole includes two first mating surfaces disposed opposite to each other and two second mating surfaces disposed opposite to each other, where the first mating surfaces are planar surfaces and the second mating surfaces are curved surfaces.

In a second aspect, an embodiment of the present utility model provides an electronic valve, including a valve core and an actuator for a valve according to the embodiment of the first aspect of the present utility model, where the actuator for a valve further includes a driven member, and the transmission member is dynamically connected to the valve core through the driven member.

In the technical scheme, the valve actuator can reduce the cost of the electronic valve and improve the operation accuracy of the electronic valve.

In a third aspect, an embodiment of the present utility model provides a vehicle including an electronic valve according to the embodiment of the second aspect of the present utility model.

In the technical scheme, the electronic valve can improve the performance of the vehicle.

Additional aspects and advantages of the utility model 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 utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a portion of a valve actuator according to some embodiments of the present application;

FIG. 2 is a schematic illustration of a transmission assembly provided in some embodiments of the application;

FIG. 3 is a front view of the transmission assembly depicted in FIG. 2;

FIG. 4 is a cross-sectional view of the transmission assembly depicted in FIG. 3;

FIG. 5 is a side view of the transmission assembly depicted in FIG. 2;

FIG. 6 is another side view of the transmission assembly depicted in FIG. 2;

FIG. 7 is a schematic illustration of a transmission provided in some embodiments of the application;

FIG. 8 is a schematic illustration of a magnetic element provided in some embodiments of the application;

FIG. 9 is another schematic view of the magnetic member shown in FIG. 8;

Fig. 10 is a schematic illustration of a vehicle provided in some embodiments of the application.

Reference numerals:

vehicle 400, electronic valve 300, valve actuator 200,

A transmission assembly 100, a motor 101, a central axis 10,

The transmission member 1, the transmission portion 11, the fitting hole 11a, the mounting portion 12, the elastic member 121, the first guide surface 121a, the boss 13, the third guide surface 13a,

The magnetic member 2, the mounting hole 21, the second guide surface 21a, the first mating surface 211, and the second mating surface 212.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

The following disclosure provides many different embodiments, or examples, for implementing different structures of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the applicability of other processes and/or the use of other materials.

Next, with reference to the drawings, a valve actuator 200 according to an embodiment of the present utility model is described.

As shown in fig. 1 to 4, the valve actuator 200 according to the embodiment of the present utility model includes a motor 101, a magnetic sensor, and a transmission assembly 100. The transmission assembly 100 comprises a transmission part 1 and a magnetic part 2, wherein the transmission part 1 comprises a transmission part 11 and at least one mounting part 12, the transmission part 11 is connected with a motor 101 to be driven by the motor 101 to rotate, the mounting part 12 is arranged on one side, far away from the motor 101, of the transmission part 11 and comprises a plurality of elastic parts 121 which are arranged at intervals, the magnetic part 2 is provided with at least one mounting hole 21, the magnetic part 2 is matched with a magnetic sensor, the mounting part 12 is inserted into the mounting hole 21 and is in limit fit with the magnetic part 2 in the circumferential direction of the transmission part 1, and the transmission part 1 is in limit fit with the magnetic part 2 in the axial direction of the transmission part.

Therefore, through setting up the installation department 12 and including a plurality of elastic pieces 121 that each other interval set up, then have certain deformation space between a plurality of elastic pieces 121, when installation department 12 inserts and joins in marriage in mounting hole 21, a plurality of elastic pieces 121 receive the effort of magnetic piece 2 and can take place elastic deformation towards the direction that is close to each other, namely installation department 12 is in the in-process that takes place elastic deformation, the peripheral outline cross-sectional area that installation department 12 corresponds can reduce, so that installation department 12 can insert and join in mounting hole 21 smoothly, can avoid between installation department 12 and the magnetic piece 2 rigid contact, can reduce the extrusion effort between installation department 12 and the magnetic piece 2, can avoid installation department 12 damage (e.g. fracturing) magnetic piece 2 to a certain extent, can reduce the risk that magnetic piece 2 breaks, thereby can reduce the damage risk of magnetic piece 2 in the installation process, improve the equipment yield of drive assembly 100. In addition, referring to fig. 4 and 5, the cross-sectional area of the outer peripheral outline of the mounting portion 12 may be understood as an area surrounded by a closed figure corresponding to the outer peripheral outline of the mounting portion 12, with a plane perpendicular to the central axis 10 of the transmission member 1 as a projection plane.

Wherein, installation department 12 inserts and joins in marriage in mounting hole 21, and installation department and magnetic part 2 are in the spacing cooperation of circumference of driving medium 1, and driving medium 1 and magnetic part 2 are in the spacing cooperation of axial of driving medium to realize that magnetic part 2 locates on installation department 12 steadily, installation department 12 can drive magnetic part 2 and rotate in step, and can avoid to a certain extent that magnetic part 2 drops etc. when rotating along with driving medium 1, guarantee that the connection between magnetic part 2 and the driving medium 1 is stable, reliable.

For example, the transmission member 1 includes a mounting portion 12, the magnetic member 2 is formed with a mounting hole 21, the mounting portion 12 is inserted into the mounting hole 21 to achieve mounting and fixing between the magnetic member 2 and the transmission member 1, for example, the mounting portion 12 is clamped on a hole wall of the mounting hole 21 to fix the magnetic member 2. Or the transmission member 1 comprises a plurality of mounting parts 12, the magnetic member 2 is provided with a plurality of mounting holes 21, the mounting parts 12 are in one-to-one correspondence with the mounting holes 21, each mounting part 12 is inserted into the corresponding mounting hole 21 to realize the mounting and fixing between the magnetic member 2 and the transmission member 1, and the plurality of mounting parts 12 are matched with the corresponding mounting holes 21, so that the matching stability of the magnetic member 2 and the mounting parts 12 can be further improved.

Optionally, after the magnetic member 2 is mounted on the mounting portion 12, the plurality of elastic members 121 are in a stop fit or clearance fit with the wall of the mounting hole 21, so as to reduce the risk of damaging the magnetic member by the mounting portion 21.

For example, the valve actuator 200 further 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 transmission portion 11 and a mounting portion 12 connected to each other, the magnetic member 2 is mounted on the mounting portion 12, and the magnetic member 2 has at least one pair of magnetic poles, a magnetic sensor (e.g., hall sensor) is disposed adjacent to the magnetic member 2, and the magnetic sensor is engaged with the magnetic member 2. The output shaft of the motor 101 is fixedly connected with the transmission part 11, so that the motor 101 can drive the transmission part 1 to rotate, and the transmission part 1 drives the magnetic part 2 to rotate. Therefore, the magnetic poles on the magnetic element 2 pass through the induction area of the magnetic sensor in turn when the magnetic element 2 rotates, and when the magnetic element 2 has a pair of magnetic poles for example, the magnetic sensor senses 2 pulse signals when the magnetic element 2 rotates for one circle, so that the number of turns (for example, the number of rotations of the rotor of the motor 101) and the rotation speed of the output shaft of the motor 101 for driving the magnetic element 2 to rotate can be obtained by measuring the number of pulse signals in a certain period of time.

Taking the valve actuator 200 as an example for the electronic valve 300, the electronic valve 300 further includes a valve core, the valve actuator 200 is located at one axial side of the valve core, the valve actuator 200 further includes a follower, the follower is connected to the valve core, and the follower is disposed in the installation cavity. Spiral teeth are formed on the outer periphery of the transmission portion 11 (the transmission portion 11 is formed as a worm structure or a helical gear), the driven member is configured as a worm wheel, and the transmission portion 11 is engaged with the driven member. Thus, the motor 101 drives the transmission member 1 to rotate so as to drive the driven member to rotate, and the valve core and the driven member synchronously rotate so as to realize the switching communication between the flow passage and the valve port of the electronic valve 300. Secondly, the magnetic element 2 is matched with the magnetic sensor, so that the rotation number and the rotation speed of the output shaft of the motor 101 can be obtained, and the control of the rotation speed and the rotation angle of the valve core can be realized, so that the control precision of the electronic valve 300 is improved.

Alternatively, the valve actuator 200 is not limited to driving a valve core, and may be used to drive other structures or components for movement, for example, the valve actuator 200 may be used in a camera assembly, and the valve actuator 200 may drive a camera to move to adjust a shooting angle.

In some technologies, the mounting modes of the transmission piece and the magnetic piece are mostly interference fit or are connected through adhesion such as glue, and because the hardness of the magnetic piece is low, the interference fit may damage the magnetic piece in the mounting process, or the glue dispensing mode may increase the production cost. In the embodiment of the application, the mounting part 12 can elastically deform to mount the magnetic part 2, so that the damage of the mounting part 12 to the magnetic part 2 can be effectively reduced, the yield is improved, the magnetic part 2 is in plug-in fit with the mounting part 12, the mounting of the magnetic part 2 and the transmission part 1 can be realized, and the production cost and the assembly difficulty can be effectively reduced.

In the above technical scheme, through setting up the installation department 12 and including a plurality of elastic components 121 that each other interval set up, then have certain deformation space between a plurality of elastic components 121, when installation department 12 is inserted and is joined in marriage in mounting hole 21, a plurality of elastic components 121 receive the effort of magnetic component 2 and can take place elastic deformation towards the direction that is close to each other, so that installation department 12 can be smoothly inserted and joined in marriage in mounting hole 21, can reduce the assembly extrusion effort between installation department 12 and the magnetic component 2, can avoid installation department 12 to damage magnetic component 2 to a certain extent, thereby can reduce the damage risk of magnetic component 2 in the installation, improve the equipment yield of drive assembly 100. Secondly, the magnetic part 2 is in plug-in fit with the mounting part 12, so that the mounting mode of the magnetic part 2 and the transmission part 1 is simple, and the production cost and the assembly difficulty can be effectively reduced.

In the description of the application, the axial direction of the transmission member 1 is the direction in which the central axis 10 of the transmission member 1 extends in fig. 4, the circumferential direction of the transmission member 1 is the direction around the central axis 10 of the transmission member 1, and "radial" is understood to mean the radial direction of the transmission member 1, i.e. the direction through the central axis 10 of the transmission member 1 in the cross section of the transmission member 1, the radial direction of the transmission member 1 being perpendicular to the axial direction of the transmission member 1.

Optionally, the plurality of elastic members 121 are configured such that, in the whole installation process of the magnetic member 2, when the plurality of elastic members 121 are subjected to the maximum elastic deformation by the acting force of the magnetic member 2, there is still a deformation allowance, that is, the plurality of elastic members 121 have a certain elastic deformation after being subjected to the maximum elastic deformation by the acting force of the magnetic member 2, that is, the plurality of elastic members 121 do not reach the limit deformation state at this time, and the plurality of elastic members 121 have a further deformation capability, so that the plurality of elastic members 121 have a proper deformation amount, so that the installation portion 12 has a proper size (peripheral outline cross-sectional area) after being elastically deformed and is inserted into the installation hole 21, and meanwhile, rigid fit between the installation portion 12 and the installation hole 21 can be avoided, and the risk of breakage or damage of the magnetic member 2 can be effectively reduced.

Alternatively, referring to fig. 4 and 6, the transmission part 11 is formed with a fitting hole 11a, and an output shaft of the motor 101 is inserted into the fitting hole 11a to fix the transmission member 1 to the output shaft of the motor 101. Optionally, the mating hole 11a extends along the axial direction of the transmission member 1, and in the axial direction of the transmission member 1, the mating length of the output shaft of the motor 101 and the transmission portion 11 is greater than or equal to half the axial length of the transmission portion 11, so that the output shaft of the motor 101 and the transmission portion 11 have a suitable mating length, and the supporting capability of the output shaft of the motor 101 on the transmission member 1 can be improved, so as to ensure the working reliability of the transmission member 1.

In some embodiments of the application, referring to fig. 2, the outer side of the free end of each elastic member 121 forms a first guide surface 121a, the first guide surface 121a being adapted to guide the mounting portion 12 into the mounting hole 21, and/or the portion of the wall of the mounting hole 21 adjacent to the transmission portion 11 forms a second guide surface 21a, the second guide surface 21a being adapted to guide the mounting portion 12 into the mounting hole 21.

In the description of the embodiment of the present application, the term "and/or" is merely an association relationship describing the association object, and indicates that three relationships may exist, for example, a and/or B, and may indicate that a exists alone, while a and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In some examples, referring to fig. 2, the outer side surface of the free end of each elastic member 121 forms a first guide surface 121a, and the first guide surface 121a is adapted to guide the mounting portion 12 into the mounting hole 21, whereby the first guide surface 121a may guide the free end of the corresponding elastic member 121 to mate with the wall of the mounting hole 21 so that the mounting portion 12 may be quickly and accurately inserted into the mounting hole 21.

For example, in conjunction with fig. 4, in the axial direction of the transmission member 1, an end of each elastic member 121 remote from the transmission portion 11 is a free end, and an outer side surface of the free end of each elastic member 121 is a side surface of the free end of each elastic member 121 remote from the central axis 10 of the transmission member 1. The outer side surface of the free end of each elastic member 121 forms a first guide surface 121a, and the first guide surface 121a is inclined in a direction away from the transmission part 11 toward a direction approaching the center axis of the transmission part 1 in the axial direction of the transmission part 1 so that the first guide surface 121a can guide the mounting part 12 to be accurately inserted into the mounting hole 21.

Alternatively, the first guide surface 121a may be correspondingly formed in a diagonal curve or a diagonal line on a longitudinal section of the transmission member 1, the longitudinal section passing through the central axis 10 of the transmission member 1.

In some examples, with reference to fig. 2, a portion of the wall of the mounting hole 21 adjacent to the transmission portion 11 forms a second guide surface 21a, the second guide surface 21a being adapted to guide the mounting portion 12 into the mounting hole 21, whereby the second guide surface 21a can guide the magnetic member 2 into engagement with the mounting portion 12 so that the magnetic member 2 can be accurately fitted to the mounting portion 12.

For example, in connection with fig. 4, a portion of the hole wall of the mounting hole 21 adjacent to the transmission part 11 forms a second guide surface 21a, and the second guide surface 21a is inclined in a direction away from the transmission part 11 toward a direction approaching the center axis of the transmission part 1 in the axial direction of the transmission part 1 so that the second guide surface 21a can guide the magnetic member 2 to be mounted on the mounting part 12.

Alternatively, the first guide surface 121a may be correspondingly formed as a slant curve or slant line in a longitudinal section of the transmission member 1.

In some embodiments of the present application, referring to fig. 2 and 4, the mounting hole 21 is a through hole, and the driving member 1 further includes at least one protruding portion 13, where the protruding portion 13 is disposed on an outer side of the corresponding elastic member 121 and abuts against a side of the magnetic member 2 away from the driving portion 11. Therefore, when the mounting portion 12 is inserted into the mounting hole 21, the protruding portion 13 is in abutting fit with the magnetic piece 2, so that the magnetic piece 2 can be prevented from falling out of the mounting portion 12, and therefore limiting fit of the transmission piece 1 and the magnetic piece 1 in the axial direction of the transmission piece 1 is achieved, and stability and reliability of the magnetic piece 2 arranged on the transmission piece 1 can be guaranteed. Alternatively, the number of the protruding portions 13 may be less than or equal to the number of the elastic members 121.

Wherein, the installation department 12 includes a plurality of elastic pieces 121 that each other interval set up, a certain clearance has between a plurality of elastic pieces 121 promptly, make a plurality of elastic pieces 121 between have certain deformation space, when installation department 12 inserts and joins in marriage in mounting hole 21, bellying 13 and the pore wall cooperation of mounting hole 21, a plurality of elastic pieces 121 receive the extrusion effort of magnetic part 2 and take place elastic deformation, and bellying 13 moves to the central axis of installation department 12 along with corresponding elastic pieces 121, so that installation department 12 inserts and joins in marriage in mounting hole 21, thereby can reduce the damage of bellying 13 to magnetic part 2, and bellying 13 can restrict magnetic part 2 and deviate from. It will be understood that, with reference to fig. 4 and 5, the cross-sectional area of the peripheral outline corresponding to the entirety of the boss 13 and the mounting portion 12 may be understood as an area surrounded by the closed figure corresponding to the peripheral outline of the boss 13 and the mounting portion 12 with a plane perpendicular to the central axis 10 of the transmission member 1 as a projection plane, and the maximum cross-sectional area of the peripheral outline corresponding to the entirety of the boss 13 and the mounting portion 12 may be understood as a maximum area surrounded by the closed figure corresponding to the peripheral outline of the boss 13 and the mounting portion 12.

Alternatively, referring to fig. 4, the plurality of elastic members 121 have a corresponding outer peripheral contour cross-sectional area equal to or smaller than the cross-sectional area of the mounting hole 21, and the plurality of elastic members 121 have a largest outer peripheral contour cross-sectional area corresponding to the boss 13 as a whole larger than the cross-sectional area of the mounting hole 21. Therefore, after the magnetic element 2 is mounted on the mounting portion 12, the outer side surfaces of the plurality of elastic elements 121 can be matched with the hole walls of the mounting holes 21, so that the plurality of elastic elements 121 are prevented from extruding or damaging the magnetic element 2, and meanwhile, the protruding portion 13 can limit the magnetic element 2 from falling out of the mounting portion 12.

For example, referring to fig. 2 and 4, the transmission assembly 100 includes a transmission member 1 and a magnetic member 2, the transmission member 1 includes a transmission portion 11 and a mounting portion 12 connected to each other, a helical tooth is formed on an outer side of the transmission portion 11 so that the transmission portion 11 is engaged with other components (e.g., a driven member) of the valve actuator 200, the mounting portion 12 includes two elastic members 121 disposed at intervals, the two elastic members 121 are disposed symmetrically with respect to a central axis 10 of the transmission member 1, a deformation space is defined between the two elastic members 121, one side of each elastic member 121 away from the other is provided with a protrusion portion 13, and each elastic member 121 and the corresponding protrusion portion 13 may be configured as a snap structure. The magnetic member 2 is formed in a circular ring structure, and a through mounting hole 21 is formed at the center of the magnetic member 2. When the magnetic member 2 is mounted on the mounting portion 12, the hole wall of the mounting hole 21 presses the protruding portion 13, so that the two elastic members 121 elastically deform in the direction approaching each other, the largest peripheral outline cross-sectional area corresponding to the whole of the two elastic members 121 and the two protruding portions 13 gradually becomes smaller and equal to the cross-sectional area of the mounting hole 21, the mounting hole 21 passes through the mounting portion 12, the hole wall of the mounting hole 21 is matched with the side walls of the two elastic members 121, and the two protruding portions 13 are abutted against one side of the magnetic member 2 away from the transmission portion 11. Therefore, through the deformation process of the elastic piece 121, the acting force between the magnetic piece 2 and the mounting part 12 can be reduced, and the magnetic piece 2 and the mounting part 12 are prevented from being rigidly matched, so that the occurrence of conditions such as fracturing, damage and the like in the process of mounting the magnetic piece 2 on the mounting part 12 can be reduced, the synchronous movement of the magnetic piece 2 and the transmission piece 1 can be ensured, and the magnetic ring can be prevented from falling off in the rotating movement process.

Of course, in other embodiments of the present application, the limit fit manner of the transmission member 1 and the magnetic member 2 in the axial direction of the transmission member 1 is not limited thereto, and for example, the axial limit may be implemented by a limit pin penetrating through the magnetic member 2 and the transmission member 1.

In some embodiments of the application, in connection with fig. 4, the peripheral profile cross-sectional area of the transmission portion 11 is greater than the largest peripheral profile cross-sectional area of the mounting portion 12, and the transmission portion 11 abuts against the side of the magnetic member 2 remote from the protruding portion 13. Thereby, the magnetic member 2 is stopped between the transmission portion 11 and the boss portion 13, and the stability of the arrangement of the magnetic member 2 in the axial direction of the transmission member 1 can be improved. For example, in connection with fig. 4, the outer peripheral contour cross-sectional area of the transmission portion 11 is equal to the outer peripheral contour cross-sectional area of the magnetic member 2.

In some embodiments of the application, with reference to fig. 4, the side of the projection 13 facing away from the elastic element 121 has a third guide surface 13a, the third guide surface 13a being adapted to guide the mounting portion 12 into the mounting hole 21. Thus, the boss 13 can guide the mounting portion 12 to be inserted into the mounting hole 21, and the accuracy of the insertion of the mounting portion 12 into the mounting hole 21 can be improved. Secondly, in the installation process of the magnetic piece 2, the third guiding surface 13a can be in sliding fit with the hole wall of the magnetic piece 2, so that the corresponding elastic piece 121 is gradually deformed, the extrusion acting force of the magnetic piece 2 received by the magnetic piece 2 is gradually increased, and the damage (such as fracturing) of the magnetic piece 2 caused by overlarge change of the reaction force received by the magnetic piece 2 is avoided to a certain extent, so that the reliability of the assembly of the magnetic piece 2 on the installation part 12 can be improved.

For example, referring to fig. 4, the side of the protruding portion 13 facing away from the elastic member 121 has a third guiding surface 13a, and the third guiding surface 13a is inclined in a direction away from the central axis of the transmission member 1 and toward the transmission portion 11, and the third guiding surface 13a is a curved surface so that the third guiding surface 13a can guide the magnetic member 2 to be mounted on the mounting portion 12.

Alternatively, the structure of the third guide surface 13a is not limited thereto, and for example, the third guide surface 13a may be a slant plane. In other words, the third guide surface 13a may be correspondingly formed as a diagonal curve or a diagonal line in the longitudinal section of the transmission member 1.

In some embodiments of the application, the transmission member 1 is a single piece, and/or the transmission member 1 is a plastic piece. Therefore, the transmission piece 1 is arranged as an integral piece, so that the processing difficulty of the transmission piece 1 can be simplified, the structural strength of the transmission piece 1 is improved, for example, the transmission piece 1 is formed by integral injection molding, and the processing cost of the transmission piece 1 can be reduced. Through setting up driving medium 1 for the working of plastics for driving medium 1 can not influence the magnetic field of magnetic part 2, can improve magnetic part 2 and magnetic sensor complex accuracy.

In some embodiments of the present application, the maximum peripheral profile cross-sectional shape of the mounting portion 12 and the cross-sectional shape of the mounting hole 21 are both non-circular, in conjunction with fig. 7 and 8. Therefore, the mounting portion 12 can be in circumferential limit fit with the hole wall of the mounting hole 21 along the circumferential limit fit of the mounting portion 12, namely, the circumferential limit fit of the mounting portion 12 and the magnetic piece 2 is realized, so that the circumferential setting stability of the magnetic piece 2 is realized, and the accuracy of the matching of the magnetic piece 2 and the magnetic sensor can be improved.

Of course, in other embodiments of the present application, the manner of limiting the mounting portion 12 and the magnetic member 2 in the circumferential direction of the transmission member 1 is not limited thereto, and for example, circumferential limitation may be achieved by a limiting pin penetrating the magnetic member 2 and the mounting portion 12.

In some embodiments of the present application, referring to fig. 8 and 9, the wall of the mounting hole 21 includes two first mating surfaces 211 disposed opposite to each other and two second mating surfaces 212 disposed opposite to each other, where the first mating surfaces 211 are planar and the second mating surfaces 212 are curved. Therefore, the first matching surface 211 and the second matching surface 212 are matched with the mounting portion 12, so that the circumferential limit matching of the mounting portion 12 and the mounting hole 21 on the mounting portion 12 can be realized, and the mounting portion 12 can limit the magnetic piece 2 to rotate relative to the mounting portion 12, so that the matching accuracy of the magnetic piece 2 and the magnetic sensor can be improved.

For example, referring to fig. 2, 7 and 9, the mounting portion 12 includes two elastic members 121 disposed at intervals, outer side surfaces of the two elastic members 121 are formed into curved surfaces, the hole wall of the mounting hole 21 includes two first mating surfaces 211 disposed opposite to each other and two second mating surfaces 212 disposed opposite to each other, the first mating surfaces 211 are planes, the second mating surfaces 212 are curved surfaces, outer side surfaces of the two elastic members 121 are identical to the second mating surfaces 212, for example, the outer side surfaces of the two elastic members 121 and the second mating surfaces 212 are cambered surfaces, and radii corresponding to the outer side surfaces of the two elastic members 121 and the second mating surfaces 212 are equal. After the magnetic member 2 is mounted on the mounting portion 12, the outer side surfaces of the two elastic members 121 are respectively in abutting engagement with the corresponding second mating surfaces 212, and the side walls of the two elastic members 121 on the same side are respectively in abutting engagement with the corresponding first mating surfaces 211. Thereby, the hole wall of the mounting hole 21 is fitted with the mounting portion 12 in a limited manner in the circumferential direction of the mounting portion 12. Of course, the number of the elastic members 121 may be three or more, for example, a plurality of elastic members 121 may be disposed at intervals along the circumferential direction of the transmission member 1.

In a second aspect, an embodiment of the present utility model provides an electronic valve 300, including a valve core and the valve actuator 200 according to the embodiment of the first aspect of the present utility model, where the valve actuator 200 further includes a driven member, and the transmission member 1 is dynamically connected to the valve core through the driven member. For example, the driven member is fixedly connected with the valve core (such as a spline), and the driven member is in meshed fit with the transmission member 1, so that the transmission member 1 rotates to drive the driven member to rotate, and the driven member and the valve core synchronously rotate to realize the switching communication between the flow passage and the valve port of the valve core.

In the above-described embodiments, by adopting the valve actuator 200, the cost of the electronic valve 300 can be reduced and the operation accuracy of the electronic valve 300 can be improved.

Optionally, the valve actuator 200 further comprises a housing defining a mounting cavity, wherein the motor 101, the magnetic sensor and the transmission assembly 100 are disposed. A support structure is formed in the housing, and the support structure can be supported on the peripheral side of the end, far away from the transmission part 11, of the mounting part 12, so that the stability of the transmission assembly 100 in the housing can be improved.

It is appreciated that the electronic valve 300 is an electronic water valve, and the electronic water valve further includes a circuit board (e.g., a PCB board) adapted for external electrical connection or signal connection, and the circuit board is adapted for electrical connection with the motor 101, so that the circuit board is electrically powered to control the motor 101.

In a third aspect, an embodiment of the present utility model provides a vehicle 400 including an electronic valve 300 according to the above-described second aspect of the present utility model.

In the above-described embodiments, the performance of the vehicle 400 can be improved by adopting the electronic valve 300 described above.

For example, vehicle 400 may be a new energy vehicle, which in some embodiments may be a pure electric vehicle having an electric motor as the primary driving force, and in other embodiments may be a hybrid vehicle having both an internal combustion engine and an electric motor as the primary driving force. Regarding the internal combustion engine and the motor that supply driving power to the new energy vehicle mentioned in the above embodiments, the internal combustion engine may use gasoline, diesel oil, hydrogen gas, or the like as fuel, and the manner of supplying electric power to the motor may use a power battery, a hydrogen fuel cell, or the like, without being particularly limited thereto. The present utility model is not limited to the above-described embodiments, and may be applied to any other embodiments.

In the description of the present utility model, it should be understood that the terms "center," "length," "upper," "lower," "front," "rear," "inner," "outer," "axial," "circumferential," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims (10)

1. An actuator for a valve, comprising a motor, a magnetic sensor, and a transmission assembly, the transmission assembly comprising:

The transmission part comprises a transmission part and at least one mounting part, the transmission part is connected with the motor so as to be driven by the motor to rotate, and the mounting part is arranged on one side of the transmission part far away from the motor and comprises a plurality of elastic pieces which are arranged at intervals;

The magnetic part is provided with at least one mounting hole, the magnetic part is matched with the magnetic sensor, the mounting part is inserted in the mounting hole and is in limit fit with the magnetic part in the circumferential direction of the transmission part, and the transmission part is in limit fit with the magnetic part in the axial direction of the transmission part.

2. The valve actuator of claim 1, wherein the valve actuator comprises,

The outer side of the free end of each elastic member forms a first guide surface adapted to guide the mounting portion into the mounting hole, and/or,

The portion of the 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 actuator for a valve according to claim 1, wherein said mounting hole is a through hole, and said transmission member further comprises at least one protrusion provided on an outer side surface corresponding to said elastic member and abutting against a side of said magnetic member remote from said transmission member.

4. A valve actuator according to claim 3, wherein the outer peripheral profile cross-sectional area of the transmission portion is greater than the maximum outer peripheral profile cross-sectional area of the mounting portion, and the transmission portion abuts against a side of the magnetic member remote from the boss portion.

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

6. The actuator for a valve according to any one of claims 1 to 5, wherein,

The transmission part is an integral part, and/or the transmission part is a plastic part.

7. The valve actuator of any one of claims 1-5, wherein the mounting portion has a maximum peripheral profile cross-sectional shape and the mounting aperture has a cross-sectional shape that is non-circular.

8. The valve actuator of claim 7, wherein the wall of the mounting hole comprises two oppositely disposed first mating surfaces and two oppositely disposed second mating surfaces, the first mating surfaces being planar and the second mating surfaces being curved.

9. An electronic valve comprising a valve spool and the valve actuator of any one of claims 1-8, the valve actuator further comprising a driven member, the transmission member being in dynamic communication with the valve spool via the driven member.

10. A vehicle comprising an electronic valve according to claim 9.