CN119572788A

CN119572788A - Control device and electric valve

Info

Publication number: CN119572788A
Application number: CN202311153147.XA
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Zhejiang Sanhua Automotive Components Co Ltd
Current assignee: Zhejiang Sanhua Automotive Components Co Ltd
Priority date: 2023-09-07
Filing date: 2023-09-07
Publication date: 2025-03-07

Abstract

A control device and an electric valve including the control device, the control device including a shell, a stator assembly and a rotor assembly, the stator assembly is located at the outer periphery of the rotor assembly; the stator assembly includes a first mounting portion, the shell includes a raised portion, the first mounting portion includes a limiting groove, the limiting groove basically extends along the radial direction of the stator assembly, the raised portion is fixedly connected or limitedly connected to the first mounting portion, at least part of the raised portion is located in the limiting groove and abuts or gap-fits with a wall forming the limiting groove, the stator assembly can be circumferentially limited, and the rotation of the stator assembly relative to the shell can be reduced.

Description

Control device and electric valve

Technical Field

The invention relates to the technical field of electricity, in particular to a control device and an electric valve.

Background

The control device can be applied to the motorised valve, and the control device generally includes motor, casing, and the motor is installed in the casing, and the motor includes stator and rotor, and during the rotor action, the rotor probably can produce the reaction force along circumference to the stator can produce the rotation for the casing, and then influences the performance of control device.

Disclosure of Invention

An object of the present application is to provide a control device and an electric valve, which can improve the stability of a stator.

One embodiment of the application provides a control device, which comprises a shell, a stator assembly and a rotor assembly, wherein the stator assembly is positioned at the periphery of the rotor assembly, the stator assembly comprises a first installation part, the shell comprises a protruding part, the first installation part comprises a limit groove, the limit groove extends along the radial direction of the stator assembly, at least part of the protruding part is positioned in the limit groove and is in abutting joint or clearance fit with a wall forming the limit groove, and the protruding part is fixedly connected or in limiting connection with the first installation part.

The application further provides an electric valve, which comprises a valve body assembly, a valve core assembly and the control device, wherein the control device comprises a transmission assembly, the rotor assembly is in transmission connection with the transmission assembly, the valve core assembly comprises a valve shaft, the valve shaft is in transmission connection with the transmission assembly, and the shell is fixedly connected or in limiting connection with the valve body assembly.

According to the control device and the electric valve provided by the embodiment of the application, the limit groove extends along the radial direction of the stator assembly, at least part of the protruding part is positioned in the limit groove and is in abutting joint or clearance fit with the wall forming the limit groove, so that the stator assembly can be circumferentially limited, and the rotation of the stator assembly relative to the shell can be reduced.

Drawings

Fig. 1 shows a schematic perspective view of an embodiment of a control device according to the application;

FIG. 2 is a schematic perspective view of a portion of the control device of FIG. 1;

FIG. 3 shows a schematic cross-sectional view of the control device of FIG. 1;

FIG. 4 is a schematic perspective view of a portion of the control device of FIG. 1;

FIG. 5 shows a schematic view of an exploded construction of a portion of the control device of FIG. 4;

FIG. 6 is a schematic perspective view of a stator assembly of the control device of FIG. 5;

FIG. 7 shows a schematic view of a portion of the control device of FIG. 4 in an angular configuration;

FIG. 8 illustrates a schematic view of a partial cross-sectional structure of a portion of the control device shown in FIG. 7 along line A-A;

FIG. 9 illustrates an exploded view of the rotor assembly of FIG. 5;

Fig. 10 is a schematic perspective view illustrating a stator core of the rotor assembly of fig. 6;

Fig. 11 is a schematic view showing a structure of the stator core shown in fig. 10 at an angle;

FIG. 12 shows a schematic perspective view of an embodiment of an electrically operated valve of the present application;

FIG. 13 shows an exploded schematic view of the electrically operated valve of FIG. 12;

Fig. 14 shows a schematic view of the control device of the electric valve shown in fig. 13 in an angle;

FIG. 15 is a schematic view of the valve body assembly and valve cartridge assembly of FIG. 13 shown in an angled configuration;

FIG. 16 shows a schematic view of a portion of the control device of FIG. 13 in an angular configuration;

FIG. 17 is a schematic view showing the construction of the electrically operated valve of FIG. 12 at an angle;

Fig. 18 shows a schematic cross-sectional structure of the electrically operated valve shown in fig. 17 along line B-B.

Reference numerals:

100. The motor-driven valve comprises a valve body assembly, 11, a first side part, 12, a second mounting hole, 13, a second limiting component, 2, a valve core assembly, 21, a valve shaft, 22, a valve ball, 3, a control device, 31, a stator assembly, 312, a first groove, 313, a first end face part, 314, a second protruding part, 315, a stator core, 3151, a stator yoke, 3152, a stator tooth part, 3153, a first side wall, 316, a shell, 317, windings, 38, a first mounting part, 381, a first through hole, 39, a limiting groove, 391, a bottom wall, 392, a side wall, 32, a rotor assembly, 321, a bracket, 324, a second groove, 322, a permanent magnet, 323, a protruding part, 33, a transmission assembly, 331, a first gear, 332, an output gear, 34, a shell, 341, a first protruding part, 342, a first mounting hole, 343, a protruding rib, 37, a second mounting part, 371, a second through hole, 30, a cavity, 35, a first shaft part, 36, a first limiting component, 361, a large diameter part, 362, a large diameter part, a small diameter 31, a small diameter, a peripheral part, a small diameter, and 55.

Detailed Description

The embodiments are specifically described below with reference to the accompanying drawings.

The present application will be described in further detail with reference to the drawings and the embodiments, in order to make the objects, technical solutions and advantages of the present application more apparent. Relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, and do not necessarily require or imply any such actual relationship or order between the elements. It should be noted that "limiting connection" in the present application includes detachable connection, such as threaded connection, clamping connection, etc., and "fixed connection" in the present application includes non-detachable connection, such as welding, bonding, vulcanization fixing, riveting, insert injection molding, etc.

Fig. 1-8 show a control device 3, the control device 3 comprising a transmission assembly 33, a stator assembly 31 and a rotor assembly 32, the stator assembly 31 being located at the periphery of the rotor assembly 32, the transmission assembly 33 comprising a first gear 331, the rotor assembly 32 being in transmission connection with the first gear 331, the control device 3 comprising a first shaft portion 35, at least part of the first gear 331 being located at the periphery of the first shaft portion 35, the first gear 331 being in sliding engagement with the first shaft portion 35, whereby the first gear 331 is rotatable about the first shaft portion 35.

The axial direction of the stator assembly 31 is defined, the rotor assembly 32 is rotatable about the rotational axis, the axial direction of the stator assembly 31 is the same as the direction of extension of the rotational axis of the rotor assembly 32, the axial direction of the stator assembly 31 is shown at H in fig. 3. The radial direction of the stator assembly 31 is defined, and the radial direction of the stator assembly 31 is perpendicular to the axial direction of the stator assembly 31. In this embodiment, a central axis of the stator assembly 31 is defined, the central axis of the stator assembly 31 substantially coinciding with the rotational axis of the rotor assembly 32, the central axis of the stator assembly 31 being indicated at S1 in fig. 3.

As shown in fig. 2 to 6, the stator assembly 31 includes an outer peripheral portion 311, and the stator assembly 31 has a first groove 312 recessed in the outer peripheral portion 311 in a radial direction of the stator assembly 31, and a portion of the first shaft portion 35 is located in the first groove 312. Since a portion of the first shaft 35 is located in the first groove 312, the distance between the first shaft 35 and the central axis of the rotor assembly 32 is smaller, so that the radius of the first gear 331 can be reduced, the space occupied by the first gear 331 can be reduced, and the size of the control device 3 can be reduced.

In the present embodiment, the extending direction of the first shaft portion 35 is parallel to the axial direction of the stator assembly 31, the outer peripheral portion 311 of the stator assembly is cylindrical-like, and along the radial direction of the stator assembly 31, a part of the first shaft portion 35 is away from the central axis of the stator assembly 31 with respect to the outer peripheral portion 311, or, a part of the first shaft portion 35 is not located in the complete cylindrical surface where the outer peripheral portion 311 is located.

As shown in fig. 3, the control device 3 includes a housing 34, the housing 34 having a cavity 30, a first gear 331 located in the cavity 30, and a first shaft portion 35 fixedly connected to the housing 34. Along the axial direction of the stator assembly 31, at least part of the first gear 331 is located between the housing 34 and the stator assembly 31, one end of the first gear 331 is in abutting joint or clearance fit with the stator assembly 31, and the other end of the first gear 331 is in abutting joint or clearance fit with the wall forming the cavity 30, so that along the axial direction of the stator assembly 31, both axial ends of the first gear 331 are limited, axial movement of the first gear 331 can be limited, and noise is reduced. In other embodiments, the first shaft portion 35 may be integrally formed with the housing 34.

Specifically, as shown in fig. 3-5, the stator assembly 31 includes a first end portion 313, at least a portion of the first end portion 313 is disposed opposite to the first gear 331 along an axial direction of the stator assembly 31, the stator assembly 31 includes a second protruding portion 314, the second protruding portion 314 protrudes from the first end portion 313, and a top portion of the second protruding portion 314 is slidably engaged with the first gear 331. The second protruding portion 314 is provided, so that the axial size of the main body of the stator assembly 31 can be reduced on the basis of realizing axial limiting of the first gear 331, and in addition, the friction between the first gear 331 and the stator assembly 31 can be reduced by the second protruding portion 314 with smaller top area. Defining a first face that is perpendicular to the axial direction of the stator assembly 31, a second boss 314 is located at the outer periphery of the first shaft portion 35, and a projection of the second boss 314 on the first face is substantially arc-shaped.

The stator assembly 31 includes a stator core 315 and a housing 316, the housing 316 is made of an insulating material, at least a portion of the housing 316 is located on the outer periphery of the stator core 315, and the housing 316 can function to protect and insulate the stator core 315. As shown in fig. 11, a portion of the first groove 312 is recessed in the outer peripheral portion of the stator core 315 in the radial direction of the stator assembly 31, which can bring the first shaft portion 35 closer to the rotor assembly 32, further reducing the radial dimension of the first gear 331.

As shown in fig. 3 to 5, the housing 316 is made of plastic, the housing 316 and the stator core 315 are fixedly connected by an insert injection molding process, the first gear 331 is made of plastic, and one end of the first gear 331 is slidably engaged with the housing 316. In this way, compared with the friction between the first gear 331 and the metal stator core 315, the hardness of the plastic housing 316 is more similar to that of the first gear 331, so that the risk of scratching the first gear 331 can be reduced. In addition, the second boss 314 is also conveniently formed by an injection molding process.

As shown in fig. 10 and 11, the stator core 315 includes a stator yoke portion 3151 and a stator tooth portion 3152, the stator yoke portion 3151 surrounds the rotor assembly 32, the stator yoke portion 3151 includes an inner peripheral portion 3155, the inner peripheral portion 3155 faces the rotor assembly 32 in a radial direction of the stator assembly 31, the inner peripheral portion 3155 includes a first side wall 3153, the stator tooth portion 3152 extends from the first side wall 3153 toward the rotor assembly 32 in the radial direction of the stator assembly 31, the first side wall 3153 is a plane, the first side wall 3153 is substantially perpendicular to an extending direction of the stator tooth portion 3152, the stator assembly 31 includes a winding 317, and the winding 317 is located on an outer periphery of the stator tooth portion 3152. Since the first side wall 3153 is planar and the first side wall 3153 is substantially perpendicular to the extending direction of the stator teeth 3152, a winding operation of the winding 317 can be facilitated as compared to the arc-shaped first side wall 3153. "substantially perpendicular" means that the angle between the two is in the range of 80 DEG to 100 deg.

As shown in fig. 3 and 9, the rotor assembly 32 includes a bracket 321 and a permanent magnet 322, the permanent magnet 322 surrounds the bracket 321 in a circumferential direction of the bracket 321, an inner peripheral portion of the permanent magnet 322 is a column-like surface, the permanent magnet 322 includes a convex portion 323, the convex portion 323 protrudes from the inner peripheral portion of the permanent magnet 322 in a radial direction of the rotor assembly 32, an outer peripheral portion of the bracket 321 is disposed opposite to the inner peripheral portion of the permanent magnet 322, the bracket 321 has a second groove 324 recessed in an outer peripheral portion of the bracket 321, and at least a part of the convex portion 323 is located in the second groove 324 and cooperates with a wall forming the second groove 324. At least a portion of the protrusion 323 is located in the second recess 324 and cooperates with the wall forming the second recess 324 to increase the difficulty of relative rotation between the permanent magnet 322 and the bracket 321.

As shown in fig. 4-8, the stator assembly 31 includes a first mounting portion 38, the housing 34 includes a first protruding portion 341, the first mounting portion 38 includes a limiting groove 39, the limiting groove 39 extends in a radial direction of the stator assembly 31, at least a portion of the first protruding portion 341 is located in the limiting groove 39 and abuts against or is in clearance fit with a wall forming the limiting groove 39, and the first protruding portion 341 is fixedly connected or in limiting connection with the first mounting portion 38. At least a portion of the first protruding portion 341 is located in the limiting groove 39 and abuts against or is in clearance fit with a wall forming the limiting groove 39, so that the stator assembly 31 can be circumferentially limited, and rotation of the stator assembly 31 relative to the housing 34, particularly rotation of the stator assembly 31 relative to the housing 34 when the rotor assembly 32 is operated, can be reduced. The radial extension of the limiting groove 39 along the stator assembly 31 may enable the limiting groove 39 to limit the stator assembly 31 substantially in the circumferential direction, reducing the risk of over-positioning. It should be noted that "the radial extension of the limiting groove 39 along the stator assembly 31" means that the extending direction of the limiting groove 39 is defined as a first direction, the connecting line between the first mounting portion 38 and the central axis of the stator assembly 31 is defined as a second direction, and the included angle between the first direction and the second direction is smaller than 10 °.

Specifically, as shown in fig. 6 and 8, the wall forming the limiting groove 39 includes a bottom wall 391 and two opposite side walls 392, the side walls 392 are parallel or substantially parallel to the axial direction of the stator assembly 31, at least part of the first protruding portion 341 is located between the two side walls 392 along the circumferential direction of the stator assembly 31, and the outer peripheral portion of the first protruding portion 341 abuts against or is in clearance fit with the two side walls 392. In the present embodiment, the outer peripheral portion of the first protruding portion 341 is columnar or pillar-like. The bottom wall 391 is perpendicular or approximately perpendicular to the axial direction of the stator assembly 31, the first protruding portion 341 extends along the axial direction of the stator assembly 31, the bottom wall 391 is opposite to the top of the first protruding portion 341, and the bottom wall 391 is abutted to the top of the first protruding portion 341, so that the stator assembly 31 can be limited axially. Therefore, the circumferential limit structure and the axial limit structure of the stator assembly 31 are both disposed on the first mounting portion 38, so that the space occupied by the limit structure can be reduced. "substantially perpendicular" means that the angle between the two is in the range of 80 DEG to 100 DEG, and "substantially parallel" means that the angle between the two is in the range of 0 DEG to 10 deg. By "clearance fit" in the present application is meant that the gap width between the two is less than 0.2mm.

As shown in fig. 6 and 8, in the present embodiment, the first boss 341 has a first mounting hole 342, the first mounting hole 342 extends from the top of the first boss 341 in the axial direction of the stator assembly 31, the first mounting portion 38 has a first through hole 381, the first through hole 381 extends from the bottom wall 391 in the axial direction of the stator assembly 31, and the first through hole 381 is provided corresponding to the first mounting hole 342. The control device 3 includes a first limiting member 36, where the first limiting member 36 includes a large-diameter portion 361 and a small-diameter portion 362, a portion of the small-diameter portion 362 is located in the first mounting hole 342, a portion of the small-diameter portion 362 is located in the first through hole 381, at least a portion of the first mounting portion 38 is located between the large-diameter portion 361 and a top portion of the first protruding portion 341 along an axial direction of the stator assembly 31, and the large-diameter portion 361 abuts against the first mounting portion 38, so that axial limiting of the stator assembly 31 is performed through the large-diameter portion 361 and the first protruding portion 341, and axial shake of the stator assembly 31 relative to the housing 34 is reduced. The first spacing member 36 may be a screw.

The stator assembly 31 includes two first mounting portions 38, one of the first mounting portions 38 is located on one side of the stator assembly 31, and the other first mounting portion 38 is located on the other side of the stator assembly 31, in a radial direction of the stator assembly 31, and the two first mounting portions 38 are disposed in a central symmetry with respect to a central axis of the stator assembly 31. In this way, the limit of the stator assembly 31 can be realized by using as few first mounting portions 38 as possible, and the first mounting portions 38 with central symmetry can make the stress of the stator assembly 31 more uniform.

As shown in fig. 4-8, the first mounting portion 38 is integrally formed with the housing 316, which may facilitate manufacturing. The first mounting portion 38 protrudes from the outer peripheral portion of the stator core 315 in the radial direction of the stator assembly 31. This increases the distance of the first mounting portion 38 from the central axis of the stator assembly 31, thereby enabling more precise circumferential positioning of the stator assembly 31.

As shown in fig. 5 and 7, the housing 34 includes at least two ribs 343, each rib 343 being spaced apart in the circumferential direction of the stator assembly 31, the ribs 34 extending in the radial direction of the stator assembly 31, and one end of the ribs 343, which is relatively close to the stator assembly 31, abutting or being in clearance fit with the outer peripheral portion 311 of the stator assembly 31 in the radial direction of the stator assembly 31. The ribs 343 may radially limit the stator assembly 31 so that the stator assembly 31 is positioned more accurately relative to the housing 34. Specifically, at least two ribs 343 are disposed in central symmetry with respect to the central axis of the stator assembly 31, such that the pair of ribs 343 can radially limit both sides of the stator assembly 31 in the same direction. Radial limitation of the protruding ribs 34 to the stator assembly 31 can enable concentricity of the stator assembly 31 and the rotor assembly 32 to be higher, and therefore motor efficiency is improved.

Fig. 12 to 18 show an electric valve 100, the electric valve 100 including a control device 3, a valve body assembly 1, and a spool assembly 2. The control device 3 comprises a housing 34, a transmission assembly 33, a stator assembly 31 and a rotor assembly 32, the valve cartridge assembly 2 comprising a valve shaft 21 and a valve ball 22, the valve shaft 21 being in transmission connection with the transmission assembly 33 such that the rotor assembly 32 can rotate the valve ball 22, the axis of rotation of the valve shaft 21 being indicated in fig. 18 by S2. The housing 34 is fixedly or positively connected to the valve body assembly 1, so that the motor-operated valve 100 can be installed in one piece. The axial direction of the valve shaft 21 is defined as the extending direction of the rotation axis of the valve shaft 21, and the axial direction of the valve shaft 21 is shown by X in fig. 18. The structure of the stator assembly 31 and the rotor assembly 32 is the same as the structure of the stator assembly 31 and the rotor assembly 32 in the control device 3 of the previous embodiment, and will not be described again.

The housing 34 comprises at least two second mounting portions 37, the second mounting portions 37 are provided with second through holes 371, the valve body assembly 1 comprises a first side portion 11, at least part of the first side portion 11 is opposite to the housing 34 along the axial direction of the valve shaft 21, a part of the valve shaft 21 protrudes out of the first side portion 11 or a part of the transmission assembly 33 extends from the first side portion 11 into the valve body assembly 1, the first side portion 11 is provided with at least three second mounting holes 12, each second mounting hole 12 is distributed in a rotationally symmetrical mode around the valve shaft 21 along the circumferential direction of the valve shaft 21, the at least two second through holes 371 are in one-to-one correspondence with the two second mounting holes 12, and the number of the second mounting holes 12 is larger than or equal to the number of the second through holes 371, so that the housing 34 can have at least two rotation angles relative to the valve body assembly 1, and different spaces for accommodating the electric valve 100 can be better adapted without changing parts of the electric valve 100. In the present embodiment, the housing 34 includes four second mounting portions 37, each of the second through holes 371 is rotationally symmetrically distributed around the valve shaft 21 in the circumferential direction of the valve shaft 21, the first side portion 11 has four second mounting holes 12, and the housing 34 can have four rotation angles with respect to the valve body assembly 1.

The control device 3 includes a second limiting member 13, a portion of the second limiting member 13 is located in the second mounting hole 12, a portion of the second limiting member 13 is located in the second through hole 371, and the second limiting member 13 may be a screw. The first side portion 11 is substantially perpendicular to the axial direction of the valve shaft 21, and the second mounting portion 37 abuts against the first side portion 11 in the axial direction of the valve shaft 21. The transmission mechanism further comprises an output gear 332, and a part of the output gear 332 is sleeved on the periphery of the valve shaft 21 and is in transmission connection with the valve shaft 21.

It should be noted that the above-mentioned embodiments are only for illustrating the present invention and not for limiting the technical solutions described in the present invention, and although the present invention has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the present invention can be modified or substituted by equivalent ones, and all technical solutions and modifications thereof without departing from the spirit and scope of the present invention are intended to be covered by the scope of the claims of the present invention.

Claims

1. A control device (3) comprises a shell (34), a stator assembly (31) and a rotor assembly (32), wherein the stator assembly (31) is located on the periphery of the rotor assembly (32), the stator assembly (31) comprises a first installation part (38), the shell (34) comprises a first protruding part (341), the first installation part (38) comprises a limit groove (39), the limit groove (39) extends along the radial direction of the stator assembly (31), at least part of the first protruding part (341) is located in the limit groove (39) and is in butt joint or clearance fit with a wall forming the limit groove (39), and the first protruding part (341) is fixedly connected or in limit connection with the first installation part (38).

2. The control device according to claim 1, characterized in that the wall forming the limit groove (39) comprises a bottom wall (391) and two side walls (392), the two side walls (392) being arranged opposite each other, the bottom wall (391) being perpendicular or substantially perpendicular to the axial direction of the stator assembly (31), the first projection (341) extending in the axial direction of the stator assembly (31), the bottom wall (391) being arranged opposite the top of the first projection (341), the bottom wall (391) being arranged in abutment with the top of the first projection (341);

The side walls (392) are parallel or approximately parallel to the axial direction of the stator assembly (31), at least part of the first protruding parts (341) are located between the two side walls (392) along the circumferential direction of the stator assembly (31), and the peripheral parts of the first protruding parts (341) are abutted or in clearance fit with the two side walls (392).

3. The control device according to claim 2, characterized in that the first boss (341) has a first mounting hole (342), the first mounting hole (342) extending from a top of the first boss (341) in an axial direction of the stator assembly (31);

The first mounting portion (38) has a first through hole (381), the first through hole (381) extends from the bottom wall (391) along the axial direction of the stator assembly (31), and the first through hole (381) is arranged corresponding to the first mounting hole (342);

The control device (3) comprises a first limiting component (36), the first limiting component (36) comprises a large-diameter portion (361) and a small-diameter portion (362), a part of the small-diameter portion (362) is located in the first mounting hole (342), a part of the small-diameter portion (362) is located in the first through hole (381), at least a part of the first mounting portion (38) is located between the large-diameter portion (361) and the top of the first protruding portion (341) along the axial direction of the stator assembly (31), and the large-diameter portion (361) is abutted to the first mounting portion (38).

4. The control device according to claim 1, characterized in that the stator assembly (31) comprises two first mounting portions (38), one of the first mounting portions (38) being located on one side of the stator assembly (31) and the other first mounting portion (38) being located on the other side of the stator assembly (31), the two first mounting portions (38) being arranged centrally symmetrically with respect to a central axis of the stator assembly (31).

5. The control device according to claim 1, wherein the stator assembly (31) includes a stator core (315) and a housing (316), the housing (316) and the stator core (315) are fixedly connected by an insert molding process, the first mounting portion (38) is integrally formed with the housing (316), and the first mounting portion (38) protrudes from an outer peripheral portion of the stator core (315) in a radial direction of the stator assembly (31).

6. The control device according to claim 5, characterized in that the housing (34) comprises at least two ribs (343), each rib (343) being spaced apart along the circumference of the stator assembly (31);

The ribs (343) extend along the radial direction of the stator assembly (31), and one end part, relatively close to the stator assembly (31), of the ribs (343) is abutted or clearance fit with the outer peripheral part of the stator assembly (31) along the radial direction of the stator assembly (31).

7. The control device according to claim 6, characterized in that at least two of the ribs (343) are arranged centrally symmetrically with respect to the central axis of the stator assembly (31).

8. An electric valve (100) comprising a valve body assembly (1), a valve core assembly (2) and a control device (3) according to any one of claims 1-7, characterized in that the control device (3) comprises a transmission assembly (33), the rotor assembly (32) is in transmission connection with the transmission assembly (33), the valve core assembly (2) comprises a valve shaft (21), the valve shaft (21) is in transmission connection with the transmission assembly (33), and the housing (34) is in fixed connection or limit connection with the valve body assembly (1).

9. The electrically operated valve (100) according to claim 8, wherein the housing (34) comprises at least two second mounting portions (37), the second mounting portions (37) having second through holes (371);

The valve body assembly (1) comprises a first side part (11), wherein at least part of the first side part (11) is opposite to the shell (34) along the axial direction of the valve shaft (21), and a part of the valve shaft (21) protrudes out of the first side part (11) or a part of the transmission assembly (33) extends from the first side part (11) into the valve body assembly (1);

The first side part (11) is provided with at least three second mounting holes (12), and each second mounting hole (12) is rotationally symmetrically distributed along the circumferential direction of the valve shaft (21) by taking the valve shaft (21) as a center; the control device (3) comprises a second limiting part (13), wherein part of the second limiting part (13) is positioned in the second mounting holes (12), and part of the second limiting part (13) is positioned in the second through holes (371);

The first side part (11) is basically perpendicular to the axial direction of the valve shaft (21), and the second mounting part (37) is abutted with the first side part (11) along the axial direction of the valve shaft (21).

10. The electric valve according to claim 9, characterized in that the housing (34) includes four of the second mounting portions (37), the first side portion (11) has four of the second mounting holes (12), and each of the second through holes (371) is rotationally symmetrically distributed in a circumferential direction of the valve shaft (21) centering around the valve shaft (21).