CN215293672U

CN215293672U - Control device and electrically operated valve

Info

Publication number: CN215293672U
Application number: CN202120790743.9U
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhejiang Sanhua Automotive Components Co Ltd
Current assignee: Zhejiang Sanhua Automotive Components Co Ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-12-24
Anticipated expiration: 2031-04-16

Abstract

The utility model provides a control device, including output gear, the connecting piece, circuit board and potentiometre, the potentiometre be located one side of circuit board and with circuit board fixed connection, the potentiometre includes rotating member, rotating member has the holding chamber, the one end of connecting piece is fixed or spacing with output gear's at least part is connected, the connecting piece includes the elasticity portion, the elasticity portion is located the other end of connecting piece, the elasticity portion part is located the holding chamber at least, the at least partial outer wall of elasticity portion forms the inner wall butt in holding chamber with rotating member, the connecting piece is connected with the rotating member transmission. The output gear is connected with the potentiometer through the connecting piece, the elastic part is arranged at one end of the connecting piece matched with the potentiometer, and the eccentric amount of the output gear in the assembling process and/or the rotating process can be compensated through the elastic deformation of the elastic part, so that the radial stress action of the output gear on the rotating part is reduced or eliminated, and the service life of the potentiometer is prolonged.

Description

Control device and electrically operated valve

Technical Field

The utility model relates to a controlling means and including this controlling means's motorised valve.

Background

The control device can be applied to the electric valve, and generally comprises a circuit board, a driving mechanism and a transmission mechanism, wherein the circuit board controls the driving mechanism to output torque, and the driving mechanism drives a valve core of the electric valve to act through the transmission mechanism, so that the aim of fluid switching or on-off is fulfilled. In order to improve the control accuracy of the control device, the inventor has known a structure in which a potentiometer is provided on the control device for position feedback, and how to improve the service life of the potentiometer is a technical problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a controlling means and including this controlling means's motorised valve is favorable to improving the life of potentiometre.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a control device, includes output gear, circuit board and potentiometre, the potentiometre is located one side of circuit board and with circuit board fixed connection, the potentiometre with circuit board electricity is connected and/or signal connection, the potentiometre includes rotating member, rotating member has the holding chamber, control device includes the connecting piece, the one end of connecting piece with output gear's at least part is fixed or spacing connection, the connecting piece includes the elasticity portion, the elasticity portion is located the other end of connecting piece, the elasticity portion at least part is located the holding chamber, the at least part outer wall of elasticity portion with rotating member forms the inner wall butt in holding chamber.

An electric valve comprises a control device, a valve core, a valve body assembly and a valve rod, wherein the control device is fixedly connected with the valve body assembly, the valve core is positioned in a valve body cavity formed by the valve body assembly, one end of the valve rod is in transmission connection with the control device, the other end of the valve rod is in transmission connection with a valve core ball, the valve body assembly is provided with at least one circulation channel used for being communicated with the outside, the valve core ball comprises an inner channel, the electric valve drives the valve core to rotate through the control device, so that the inner channel of the valve core is communicated or not communicated with the circulation channel or selectively communicated or not communicated with one of the circulation channels, and the control device is the control device.

The utility model provides a controlling means includes output gear, circuit board and potentiometre, potentiometre and circuit board fixed connection and electricity connection and/or signal connection, be connected through the connecting piece between output gear and the potentiometre, the connecting piece includes elasticity portion, elasticity portion and rotating member form the inner wall butt in holding chamber, elastic deformation through elasticity portion can come the offset of compensation output gear in assembly process and/or rotation process, with this reduce or eliminate the radial stress effect of output gear to rotating member, be favorable to improving the life of potentiometre.

Drawings

Figure 1 is a schematic cross-sectional view of a first embodiment of an electrically operated valve;

figure 2 is another schematic cross-sectional view of the first embodiment of the electrically operated valve;

figure 3 is a schematic perspective view of the electrically operated valve of figure 1 without the upper cover;

figure 4 is a schematic perspective view of the electrically operated valve of figure 1 without the upper cover, the circuit board and the potentiometer;

FIG. 5 is a perspective view of the lower housing of FIG. 1;

FIG. 6 is a perspective view of the output gear of FIG. 1 shown in engagement with a coupling;

FIG. 7 is a perspective view of the output gear of FIG. 1 from another perspective;

FIG. 8 is an exploded view of the output gear and coupling member of FIG. 6;

FIG. 9 is a cross-sectional view of the output gear of FIG. 6 engaged with the coupling member;

FIG. 10 is a schematic perspective view of the substrate of FIG. 3;

FIG. 11 is a perspective view of the circuit board and potentiometer combination of FIG. 3;

FIG. 12 is a perspective view of the motor and transmission of FIG. 1 from one perspective;

FIG. 13 is a schematic perspective view of the motor and transmission of FIG. 1 from another perspective;

FIG. 14 is a cross-sectional view of the motor of FIG. 1;

FIG. 15 is a perspective view of the second embodiment with the output gear engaged with the connecting member;

FIG. 16 is a perspective view of the connector shown in FIG. 15;

FIG. 17 is a schematic perspective view of the output gear and the connecting member shown in FIG. 15 in combination with a potentiometer;

FIG. 18 is a perspective view of the third embodiment with the output gear engaged with the connecting member;

FIG. 19 is a top view, partially enlarged, of the output gear and coupling member of FIG. 18;

fig. 20 is an exploded view of the output gear and coupling member shown in fig. 18.

Detailed Description

The invention will be further described with reference to the following drawings and specific embodiments:

in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1-14, fig. 1-14 are the utility model discloses a controlling means is applied to first embodiment of motorised valve, the motorised valve can be applied to vehicle thermal management system or air conditioning system, motorised valve 100 includes controlling means 1, valve body component 2, case 3 and valve rod 4, valve body component 2 has valve body chamber 21, case 3 is located valve body chamber 21, case 3 can be spherical or quasi-spherical case in this embodiment, controlling means 1 and valve body component 2 fixed connection, the one end and the 1 transmission of controlling means of valve rod 4 are connected, the other end and the 3 transmission of case of valve rod 4 are connected, controlling means 1 output torque gives valve rod 4, valve rod 4 drives case 3 and rotates together. Further, the spool 3 is provided with an inner passage 31, and the valve body assembly 2 is provided with at least two

communication passages

22, 23 for communicating with the outside. The electric valve 100 controls the rotation of the valve core 3 through the control device 1, so that the inner channel 31 of the valve core 3 is communicated or not communicated with the

flow channels

22 and 23 of the valve body assembly 2 or selectively communicated or not communicated with one of the

flow channels

22 and 23, thereby opening or closing or switching the flow path of the electric valve 100 or controlling the flow of the flow path.

Referring to fig. 1 and 2, the control device 1 includes a housing 11, a motor 12, and a transmission mechanism 13, where the housing 11 includes an upper cover 111 and a lower housing 112, the upper cover 111 and the lower housing 112 are respectively formed by injection molding, and the upper cover 111 is hermetically connected with the lower housing 112. The housing 11 has a cavity 110, the cavity 110 is located between an upper cover 111 and a lower housing 112, and the motor 12 and at least a part of the transmission mechanism 13 are located in the cavity 110. Referring to fig. 5, the lower housing 112 includes a first through hole 1121, the first through hole 1121 is axially disposed, and the first through hole 1121 is disposed to communicate with the cavity 110. Defining the axial direction, with respect to the cavity 110, the direction away from the upper cover 111 is downward, the direction close to the upper cover 111 is upward, and the first through hole 1121 is located at the bottom of the lower housing 112.

The control device 1 further comprises a circuit board 14, the circuit board 14 being located in the cavity 110, the circuit board 14 being disposed adjacent to the upper cover 111. In this embodiment, the motor 12 is a stepping motor, referring to fig. 14, the motor 12 includes a stator assembly 121, a rotor assembly 122, a rotating shaft 123 and a rotor gear 124, the stator assembly 121 is located at an outer periphery of the rotor assembly 122, the stator assembly 121 is electrically connected and/or signal-connected with the circuit board 14, the rotating shaft 123 is used as a central axis of the motor 12, the rotor assembly 122 can rotate around the rotating shaft 123 or rotate together with the rotating shaft 123, and the rotor gear 124 is fixedly connected with the rotor assembly 122, so that the rotor gear 124 can rotate together with the rotor assembly 122. The circuit board 14 controls the stator assembly 121 to be powered on, the stator assembly 121 is powered on to generate an excitation magnetic field, and the rotor assembly 122 rotates under the action of the excitation magnetic field and drives the rotor gear 124 to rotate together. It will be appreciated that the motor of the present application may be other types of motors than a stepper motor, such as a brushless dc motor.

The transmission mechanism 13 may be a gear reduction mechanism, but may be other types of transmission reduction mechanisms. Referring to fig. 12 and 13, the transmission mechanism 13 includes a first gear set 131, a second gear set 132, a third gear set 133, a fourth gear set 134, and an output gear 135. The rotor gear 124 is meshed with the first gear set 131, the first gear set 131 is meshed with the second gear set 132, the second gear set 132 is meshed with the third gear set 133, the third gear set 133 is meshed with the fourth gear set 134, and the fourth gear set 134 is meshed with the output gear 135, so that the rotor gear 124 rotates to drive the first gear set 131 to rotate, the first gear 131 drives the second gear set 132 to rotate, the second gear set 132 drives the third gear set 133 to rotate, the third gear set 133 drives the fourth gear set 134 to rotate, and the fourth gear set 134 drives the output gear 135 to rotate. In this embodiment, 4 gear sets are provided in addition to the output gear, and the number of the gear sets can be adjusted according to the required transmission ratio.

Referring to fig. 6-9, the output gear 135 includes a tooth portion 1351, a transmission output portion 1352 and a first matching portion 1353, the tooth portion 1351 is in meshing transmission with the fourth gear set 134, along the axial direction of the output gear 135, referring to fig. 1 and 2, the transmission output portion 1352 is located on one side of the tooth portion 1351 close to the valve body assembly 2, the transmission output portion 1352 is used for outputting a rotation torque, the transmission output portion 1352 is in limit or fixed connection with the valve stem 4, the transmission output portion 1352 is at least partially located in the first through hole 1121 of the lower housing, the first matching portion 1353 is located on one side of the tooth portion 1351 close to the upper cover 111, the tooth portion 1351, the transmission output portion 1352 and the first matching portion 1353 are formed into a whole by injection molding, when the tooth portion 1351 of the output gear 135 is in meshing transmission with the fourth gear set 134, the transmission output portion 1352 drives the valve stem 4 to rotate, and the other end of the valve stem 4 is in driving connection with the valve core 3 to rotate, i.e., the same angular rotation of the output gear 135 and the spool 3 can be achieved.

Referring to fig. 1, 2, 3 and 11, the control device 1 further includes a potentiometer 17, the potentiometer 17 is disposed on a side of the circuit board 14 close to the upper cover, and the potentiometer 17 is electrically and/or signal connected to the circuit board 14 and fixedly connected to the circuit board 14. The potentiometer 17 comprises a rotating part 171, the rotating part 171 can rotate in the circumferential direction, and the rotating part 171 is provided with an accommodating cavity 1710; the circuit board 14 is provided with a communication hole 143 for communicating with the accommodation chamber 1710.

Referring to fig. 1, 2, 8, and 9, the control device 1 further includes a connecting member 18, as shown in fig. 9, the connecting member 18 has two ends, respectively referred to as a first end 18a and a second end 18b, the first end 18a and the second end 18b are fixedly connected or integrally formed by injection molding, the first end 18a is fixedly connected to the first matching portion 1353 of the output gear 135, the second end 18b passes through the communication hole 143 of the circuit board 14 and then is in transmission connection with the rotating member 171, the second end 18b is partially located in the communication hole 143 of the circuit board 14, and is partially located in the accommodating cavity 1710 of the rotating member 171. When the output gear 135 drives the valve rod 4 to rotate, because the first end 18a of the connecting piece 18 is fixedly connected with the output gear 135, and the second end 18b of the connecting piece 18 is in transmission connection with the rotating part 171, the output gear drives the rotating part 171 to rotate through the connecting piece 18, the potentiometer 17 can feed back the rotating angle of the rotating part 171 in a resistance voltage division manner according to the rotation of the rotating part 171, and the control device 1 can feed back the angle of the valve core 3 according to the angle of the potentiometer 17, so as to feed back the position of the valve core 3.

Referring to fig. 8 and 9, the connecting member 18 includes a shaft portion 181 and an elastic portion 182, the first fitting portion 1353 of the output gear 135 includes a first hole portion 1353a, the shaft portion 181 is axially disposed, one end of the shaft portion 181 is located in the first hole portion 1353a, the shaft portion 181 and the first fitting portion 1353 can be fixedly connected by means of adhesion or interference fit, and the end of the shaft portion 181 located in the first hole portion 1353a is the first end 18 a. The elastic portion 182 is sleeved on a radial outer periphery of one end of the shaft portion 181 far away from the output gear 135, the elastic portion 182 has a second hole portion 1821, one end of the shaft portion 181 far away from the output gear 135 is located in the second hole portion 1821, and an outer wall of the shaft portion 181 abuts against an inner wall of the elastic portion forming the second hole portion 1821. The shaft portion 181 is fixedly connected with the elastic portion 182, the shaft portion 181 is connected with the elastic portion 182 by bonding or interference fit, the elastic portion 182 and one end of the shaft portion 181 connected with the elastic portion 182 are the second end 18b, and the elastic portion 182 is sleeved on the outer periphery of the shaft portion 181 so that the second end 18b of the connecting piece has certain elasticity. The elastic portion 182 and the shaft portion 181 connected to the elastic portion 182 are located in the accommodation cavity 1710, and the outer peripheral wall of the elastic portion 182 abuts against the inner wall of the accommodation cavity 1710 formed by the rotating member 171. The shaft portion 181 has a stepped portion 1811, and a lower end surface of the elastic portion 182 abuts against the stepped portion 1811, and supports the elastic portion 182 by the stepped portion 1811 and restricts the movement of the elastic portion 182 in a direction to approach the output gear 135. The elastic portion 182 may be made of an elastic material such as rubber, and may be elastically deformed to a certain extent. The shaft portion 181 serves to drivingly connect the output gear 135 and the rotating member 171, and requires a certain stability or strength, and therefore, the shaft portion 181 has a higher stability or strength than the elastic portion 182, and may be made of, for example, metal or plastic having a certain stability or strength. The elastic portion 182 can be compressed to a certain extent under the action of an external force, so that when the output gear 135 is eccentric in the assembling process and/or the rotating process, the connecting element 18 can compensate the eccentric amount of the output gear 135 in the assembling process and/or the rotating process through the compression amount of the elastic portion 182, so as to reduce or eliminate the radial stress action on the rotating component 171 when the output gear 135 is eccentric, thereby prolonging the service life of the rotating component 171 and prolonging the service life of the potentiometer 17.

With reference to fig. 2, 4 and 10, the control device 1 further includes a substrate 15, the substrate 15 is located in the cavity 110, the substrate 15 is formed by injection molding, and the substrate 15 is provided with a reinforcing rib 151 to improve the strength of the substrate 15. The substrate 15 includes a second through hole 152 and a support portion 153, the support portion 153 has a third through hole 1531 penetrating along the axial direction, and the number of the support portions 153 may be two or more, in this embodiment, two. As shown in fig. 5, the lower case 112 further includes fixing parts 1126, the fixing parts 1126 have screw holes, and the number of the fixing parts 1126 is the same as that of the supporting parts 153. The base plate 15 is located above the tooth portions 1351 and the transmission output portions 1352 of the output gear 135, the base plate 15 is located below the circuit board 14, the base plate 15 abuts against the tooth portions 1391 or leaves a small gap, the supporting portion 153 of the base plate 15 abuts against the fixing portion 1126 of the lower housing 112, the first fitting portion 1353 of the output gear 135 passes through the second through hole 152 of the base plate 15, and a part of the first fitting portion 1353 is located in the second through hole 152. The transmission output portion 1352 of the output gear 135 is at least partially located in the first through hole 1121 of the lower housing, the central axes of the first through hole 1121 and the second through hole 152 are aligned or coincide with each other as much as possible, the output gear 135 can be limited from moving toward the upper cover 111 by the arrangement of the base plate 15, and the alignment of the first through hole 1121 and the second through hole 152 is beneficial to reducing the occurrence of eccentricity of the output gear 147 during the assembly and/or rotation process, and is beneficial to reducing the eccentricity of the output gear 147.

As shown in fig. 5, lower housing 112 also includes locating posts 1127; as shown in fig. 11, a positioning portion 141 is provided on the circuit board 14 to be matched with the positioning column 1127, and the circuit board 14 and the lower housing 112 are positioned by matching the positioning portion 141 with the positioning column 1127. The circuit board 14 is further provided with a connecting hole 142 for fixing the circuit board 14, the control device 1 includes a screw 16, and referring to fig. 2 and 3, after the screw 16 passes through the connecting hole 142 of the circuit board 14 and the third through hole 1531 of the substrate 15, the screw is in threaded connection with the threaded hole of the fixing portion 1126 of the lower housing 112, so as to realize the relative fixing of the circuit board 14, the substrate 15 and the lower housing 112.

Referring to fig. 15-17, a second embodiment of the output gear 135 in combination with the coupling 18 is shown. Referring to fig. 16, the connecting member 18 may be a shaped spring, the connecting member 18 has two ends, respectively referred to as a first end 18a and a second end 18b, the first end 18a is closer to the output gear 135 than the second end 18b along the axial direction, the first end 18a and the second end 18b are fixedly connected or integrally connected, the first end 18a has a certain length in the axial direction, the elastic portion is located at the second end 18b, the elastic portion can generate a certain deformation in the radial direction, and the elastic portion is formed by folding a steel wire at least once in this embodiment. Specifically, the connecting member 18 may be made of a steel wire, and a feasible method is to align two ends of the steel wire to make a frame shape with one side opened, turn over the steel wire with the other side opened by about 90 ° toward the opened side, the turned steel wire and the turned steel wire have a certain distance h in the radial direction, the turned frame shape and the steel wire part overlapped with the turned frame shape along the axial direction projection are used as elastic parts, the non-overlapped steel wire part is used as a first end 18a, two ends of the steel wire of the first end may be bent inward by a certain distance to form a straight angle part or a round angle part, in this embodiment, the first end is two "L" shapes with mirror symmetry, and short sides of the "L" are arranged oppositely. The folded steel wire of the elastic part can be relatively close to the unfolded steel wire under the action of external force, so that the second end has elasticity. The first matching portion 1353 of the output gear 139 has a clamping groove 1353b, the first end 18a is located in the clamping groove 1353b and is connected with the first matching portion 1353 in a clamping manner, the second end 18b is located at least partially in the accommodating cavity 1710 of the potentiometer 17, and the second end 18b abuts against an inner wall of the accommodating cavity 1710 formed by the rotating component 171. Of course, as other embodiments, the profile spring may have other structural shapes as would be readily apparent to one skilled in the art.

In addition, the connecting member 18 may also be a metal elastic sheet, and the elastic sheet may be similar to this embodiment, and one end of the metal sheet is turned over by about 90 ° so that a certain distance is provided between the turned metal sheet and the metal sheet that is not turned over, the turned metal sheet and the metal sheet portion that is not turned over and overlaps with the turned metal sheet in the axial direction projection are used as elastic portions, and the metal sheet portion that is not overlapped may be used as a first end that is engaged with the output gear.

Referring to fig. 18-20, a third embodiment of the output gear 135 and the coupling member 18, in this embodiment, the coupling member 18 includes a first end 18a and a second end 18b, the first end 18a is closer to the output gear 135 than the second end 18b in the axial direction, and the first end 18a and the second end 18b are injection molded as one piece. The elastic part is located at the second end 18b, the elastic part is 3 or more than three convex strips 183 in the embodiment, the convex strips 183 are axially arranged, the convex strips 183 are distributed along the circumference of the upper end surface of the first end 18a, a certain gap is formed between every two adjacent convex strips 183, the lower end part of each convex strip 183 is connected with the upper end surface of the first end 18a, the inner peripheral wall of each convex strip 183 is not contacted with the first end 18a, the convex strips 183 are at least partially located in the accommodating cavity of the potentiometer rotating component, the potentiometer has the same structure as the first two embodiments, the structure of the potentiometer is not shown in the drawing of the embodiment, the outer wall of each convex strip 183 is abutted against the inner wall of the accommodating cavity formed by the rotating component, each convex strip 183 can deviate towards the adjacent convex strips or towards the axis direction of the connecting component 18 to generate certain deformation under the external force, so that the connecting component can generate certain elastic deformation to reduce or eliminate the radial stress action of the output gear 139 on the rotating component, thereby improving the service life of the potentiometer.

The first end 18a of the connecting member 18 is connected with the first matching portion 1353 of the output gear 135 by clamping, and one possible clamping manner is as shown in fig. 20, the first matching portion 1353 of the output gear 135 includes protrusions 1353c, the protrusions 1353c are arranged to protrude upwards along the axial direction, the number of the protrusions 1353c can be 3 and more than 3, in this embodiment, the protrusions 1353c are 4, the 4 protrusions 1353c are uniformly distributed along the outer circumference of the first matching portion 1353, the first matching portion 1353 has a containing portion 1353d for containing the first end 18a of the connecting member, and the containing portion 1353d is located inside the inner circumferential wall of the protrusions 1353c distributed at equal circumference. The first end 18a of the connector has ribs 184 protruding in the radial direction, the number of the ribs 184 is equal to or greater than the number of the protrusions, and the number of the ribs 184 is twice the number of the protrusions 1353c in this embodiment, that is, the number of the ribs 184 is 8, and the 8 ribs 184 are uniformly distributed along the outer peripheral wall of the first end 18 a. As shown in fig. 18 and 19, the first end 18a is positioned in the receptacle, 4 ribs 184 abut 4 protrusions 1353c of the first mating portion, and the remaining 4 ribs 184 are positioned between two adjacent protrusions 1353 c. The inner peripheral wall of the protrusion 1353c is further provided with a protrusion 1353e protruding towards the axis, and two ends of the inner peripheral wall of the protrusion 1353c are respectively provided with one protrusion 1353 e. Referring to fig. 19, each rib 184 is located between two adjacent protrusions 1353e along the circumferential direction, the ribs 184 and the protrusions 1353e are spaced apart, and the protrusions 1353e have a certain gap with the first end 18a, which gap can also compensate the eccentricity of the output gear during the assembling process and/or the rotating process, and reduce or eliminate the stress of the output gear 135 on the rotating component.

It should be noted that: the above embodiments are only used 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 embodiments, it should be understood by those skilled in the art that the technical solutions and modifications thereof without departing from the spirit and scope of the present invention can be modified or replaced by other technical solutions and modifications by those skilled in the art.

Claims

1. A control device comprises an output gear, a circuit board and a potentiometer, wherein the potentiometer is positioned on one side of the circuit board and is fixedly connected with the circuit board, and the potentiometer is electrically connected and/or in signal connection with the circuit board, and is characterized in that: the potentiometer comprises a rotating part, the rotating part is provided with an accommodating cavity, the control device comprises a connecting piece, one end of the connecting piece is fixedly connected with at least part of the output gear or in a limiting mode, the connecting piece comprises an elastic part, the elastic part is located at the other end of the connecting piece, at least part of the elastic part is located in the accommodating cavity, at least part of the outer wall of the elastic part is abutted to the inner wall of the accommodating cavity formed by the rotating part, and the connecting piece is in transmission connection with the rotating part.

2. The control apparatus of claim 1, wherein: the output gear comprises a transmission output part, a tooth part and a first matching part, the transmission output part and the matching part are respectively positioned on two sides of the tooth part, the first matching part is closer to the potentiometer than the transmission output part, and one end of the connecting piece is fixedly connected with the first matching part.

3. The control device according to claim 1 or 2, characterized in that: the connecting piece includes the axial region, the elastic component cover locate the radial periphery of axial region one end and with axial region fixed connection, first cooperation portion includes first hole portion, the axial region is kept away from the one end of elastic component is located first hole portion, the axial region is kept away from the one end of elastic component with first cooperation portion fixed connection, the elastic component and the axial region with the one end that the elastic component is connected is located the holding chamber, the periphery wall of elastic component with the inner wall butt in holding chamber is formed to the rotating member.

4. The control device according to claim 3, characterized in that: the elastic part is made of elastic materials and is provided with a second hole part, one end of the shaft part, far away from the output gear, is positioned in the second hole part, and the outer wall of the shaft part is abutted against the inner wall of the second hole part; the shaft portion has a stepped portion, and a lower end surface of the elastic portion abuts against the stepped portion; the shaft portion has greater stability or strength than the resilient portion.

5. The control device according to claim 1 or 2, characterized in that: the connecting piece is made through steel wire or sheetmetal, the connecting piece has first end and second end, first end and second end body coupling, the elastic component is located the second end, the elastic component passes through steel wire or sheetmetal turn over and turn over at least once and form, first cooperation portion has the draw-in groove, first end is located in the draw-in groove with first cooperation portion joint is connected.

6. The control device according to claim 1 or 2, characterized in that: the connecting piece is made of steel wires, two ends of each steel wire are aligned to form a frame with one side opened, the steel wires which are not opened are turned towards the opening side, so that a certain distance is reserved between the turned steel wires and the turned steel wires, the elastic part comprises the turned steel wires and the steel wires which are overlapped with the turned steel wires in a projection mode along the axial direction, and the first end comprises a steel wire part which is not overlapped with the turned steel wires in a projection mode along the axial direction;

or the connecting piece is made by folding the metal sheet at least once, a certain distance is reserved between the folded metal sheet and the unfolded metal sheet, the elastic part comprises the folded metal sheet and an unfolded metal sheet part which is overlapped with the folded metal sheet in the axial direction in a projection manner, and the second end comprises a metal sheet part which is not overlapped with the folded metal sheet in the axial direction in a projection manner.

7. The control device according to claim 1 or 2, characterized in that: the connecting piece has first end, first end with first cooperation portion joint is connected, the elastic part is 3 and above sand grips, the sand grip axial sets up, the sand grip along the circumference of the up end of first end distributes, the lower tip of sand grip is connected with the up end of first end, and is adjacent the sand grip with set for the clearance between the sand grip, the outer wall of sand grip with the rotating part forms the inner wall butt in holding chamber.

8. The control device according to claim 7, characterized in that: the first matching part comprises a plurality of bulges, the bulges are convex along the axial direction, the bulges are uniformly distributed along the outer circumference of the first matching part, the first matching part comprises a containing part, the containing part is positioned inside the inner circumferential wall of the bulges, the first end of the connecting piece is provided with a plurality of convex ribs which are convex along the radial direction, at least part of the convex ribs are positioned in the containing part, and at least part of the convex ribs are abutted with the bulges; the first matching part further comprises a convex part, the convex part is located at two ends of the inner peripheral wall of the protrusion, the convex edge is located between the convex part and the convex part, and a set gap is formed between the convex part and the first end.

9. The control device according to claim 1 or 2, characterized in that: the control device comprises an upper cover, a lower shell and a substrate, wherein the upper cover is fixedly connected with the lower shell, the lower shell comprises a first through hole, the substrate comprises a second through hole, the central axes of the first through hole and the second through hole are aligned, the transmission output part of the output gear is at least partially positioned in the first through hole, the first matching part of the output gear is at least partially positioned in the second through hole, the tooth part is positioned between the lower shell and the substrate, and the substrate is fixedly connected with the lower shell; the circuit board is provided with a connecting hole, the potentiometer is positioned on one side of the circuit board close to the upper cover, the substrate is provided with a supporting part, the supporting part is provided with a third through hole which penetrates through the circuit board along the axial direction, the lower shell is provided with a fixing part, the fixing part is provided with a threaded hole, the control device comprises a screw, and the screw penetrates through the connecting hole and the third through hole to be in threaded connection with the threaded hole of the fixing part; the circuit board is provided with a communication hole communicated with the accommodating cavity, and the connecting piece penetrates through the communication hole and is fixedly connected with the rotating part.

10. The utility model provides an electrically operated valve, includes controlling means, case, valve body subassembly and valve rod, its characterized in that: the control device is fixedly connected with the valve body assembly, the valve core is positioned in a valve body cavity formed by the valve body assembly, one end of the valve rod is in transmission connection with the control device, the other end of the valve rod is in transmission connection with the valve core ball, the valve body assembly is provided with at least one circulation channel used for being communicated with the outside, the valve core ball comprises an inner channel, the electric valve drives the valve core to rotate through the control device, so that the inner channel of the valve core is communicated or not communicated with the circulation channel or selectively communicated or not communicated with one of the circulation channels, and the control device is the control device of any one of claims 1 to 9.