Electronic actuators, appliances and vehicles

Abstract

The utility model discloses an electronic executor, electrical equipment and vehicle, the electronic executor includes: drive motor, drive motor has motor shaft, the actuating mechanism, the actuating mechanism includes drive worm, output gear and a plurality of gear sets, and a plurality of gear sets are sequentially powered on between drive worm and output gear, wherein, drive worm includes first inner embedded metal pole part and first outer plastic layer, first outer plastic layer is integrative injection molding on first outer embedded metal pole part, first inner embedded metal pole part is linked with motor shaft, and first outer plastic layer forms the worm outer tooth part transmission cooperation with one gear set. The utility model discloses an electronic executor, can guarantee drive worm and the axial force and the circumferential friction of motor shaft under different temperature load, can improve the stability and reliability of driving force transmission, to guarantee the use characteristic of electronic executor, and long service life.

Description

TECHNICAL FIELD

[0001] The utility model relates to actuator technical field especially relates to an electronic actuator, the electric appliance and vehicle with the electronic actuator of having. BACKGROUND

[0002] At present, the vehicle is provided with an actuator assembly, the actuator assembly can be an electronic water valve, and the actuator assembly can provide power and control movement displacement for components such as air inlet grille, refueling cover and charging port cover. The actuator assembly drives the rotation of the worm and gear system through the rotation of the motor, wherein the worm material is generally selected from metal worm or plastic worm, the metal worm has high strength, but has high processing difficulty and cost, the plastic worm generally adopts nylon material, and the price is low, but due to the difference in thermal expansion coefficient between the metal motor shaft, the axial and circumferential movement relative to the motor shaft is prone to occur in the rotation process, thereby causing product failure or angle misalignment, and there is room for improvement. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides an electronic actuator, which can ensure the axial force and circumferential friction force of the driving worm and the motor shaft under different temperature loads, can improve the stability and reliability of the driving force transmission, can ensure the use characteristics of the electronic actuator, and has long service life.

[0004] According to the electronic actuator provided in the embodiment of the utility model, the driving worm is combined with the outer plastic material and the inner metal material, the first embedded metal rod part of the metal is connected with the motor shaft, the connection stability of the driving worm and the driving motor can be improved, the axial force and the circumferential friction force of the driving worm and the motor shaft can be ensured under different temperature loads, the stability and the reliability of the driving force transmission can be improved, the use characteristics of the electronic actuator can be ensured, and the service life is long, and the processing difficulty and the cost are low.

[0005] According to the electronic actuator provided in the embodiment of the utility model, the driving worm is combined with the outer plastic material and the inner metal material, the first embedded metal rod part of the metal is connected with the motor shaft, the connection stability of the driving worm and the driving motor can be improved, the axial force and the circumferential friction force of the driving worm and the motor shaft can be ensured under different temperature loads, the stability and the reliability of the driving force transmission can be improved, the use characteristics of the electronic actuator can be ensured, and the service life is long, and the processing difficulty and the cost are low.

[0006] According to the electronic actuator of some embodiments of the present application, one end of the first embedded metal rod part is formed with a transmission connection groove which is open along the axial direction, at least part of the motor shaft extends into the transmission connection groove and is in interference fit with the inner wall of the transmission connection groove, and the motor shaft is in circumferential transmission fit with the first embedded metal rod part.

[0007] According to the electronic actuator of some embodiments of the present application, the first outer plastic layer is formed with a containing cavity and a loading channel which are communicated along the axial direction, the first embedded metal rod part is located in the containing cavity, the transmission connection groove is communicated toward the loading channel, and the motor shaft enters the transmission connection groove from the loading channel.

[0008] According to the electronic actuator of some embodiments of the present application, the first embedded metal rod part is formed with a first limiting surface and a second limiting surface which are away from each other, and the containing cavity is formed with a first limiting fit surface and a second limiting fit surface which are oppositely distributed.

[0009] In the axial direction of the motor shaft, the first limiting surface is limited to abut against the first limiting fit surface, and the second limiting surface is limited to abut against the second limiting fit surface.

[0010] According to the electronic actuator of some embodiments of the present application, the output gear includes a second embedded metal rod part and a second outer plastic layer, the second outer plastic layer is integrally injection molded outside the second embedded metal rod part, the second embedded metal rod part is formed with a power output part, and the second outer plastic layer is formed with an output outer gear part which is in transmission fit with another gear set.

[0011] According to the electronic actuator of some embodiments of the present application, the power output part is arranged at one end of the second embedded metal rod part, the other end of the second embedded metal rod part is provided with a mounting part, and the mounting part is used for mounting a rotation angle sensor.

[0012] According to the electronic actuator of some embodiments of the present application, the plurality of gear sets include one driving gear set, at least one transmission gear set and one driven gear set, and at least one transmission gear set is power connected between the driving gear set and the driven gear set.

[0013] Among them, the driving gear set is in meshing transmission with the worm outer gear part, and the driven gear set is in meshing transmission with the output outer gear part.

[0014] According to the electronic actuator of some embodiments of the present application, each gear set includes a first gear and a second gear which are coaxially distributed, and the outer diameter of the first gear is greater than the outer diameter of the second gear.

[0015] Among the two adjacent gear sets, the first gear of one gear set meshes with the second gear of the other gear set, the first gear of each gear set is arranged as a driving gear and the second gear is arranged as a driven gear.

[0016] The electronic actuator according to some embodiments of the present application further comprises a housing, the driving motor and the actuating mechanism are both mounted in the housing, and an electric control board electrically connected with the driving motor is further arranged in the housing.

[0017] The housing is provided with a first electric connecting piece, the first electric connecting piece is integrally injection molded with the housing, two ends of the first electric connecting piece are respectively configured as a motor connecting part and a first electric connecting part, the motor connecting part is connected to the driving motor in plug-in mode, and the first electric connecting part is connected to the electric control board in plug-in mode.

[0018] The electronic actuator according to some embodiments of the present application further comprises a housing, the driving motor and the actuating mechanism are both mounted in the housing, and an electric control board electrically connected with the driving motor is further arranged in the housing.

[0019] The first embedded metal rod part is provided with a first limiting piece between one end thereof away from the driving motor and the housing, and the driving motor is provided with a second limiting piece at one end thereof away from the first embedded metal rod part.

[0020] The first limiting piece and / or the second limiting piece are made of plastic material or metal material.

[0021] The utility model further provides an electric appliance.

[0022] The electric appliance according to the embodiments of the present application comprises the electronic actuator according to any one of the above embodiments.

[0023] The utility model further provides a vehicle.

[0024] The vehicle according to the embodiments of the present application comprises the electronic actuator according to any one of the above embodiments.

[0025] The vehicle has the same advantages as the electric appliance and the electronic actuator according to the above embodiments, and details are not repeated here.

[0026] The additional aspects and advantages of the present application will be described in part below, will become apparent from the description below, or will be learned from the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0027] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description of embodiments, taken in conjunction with the accompanying drawings, in which:

[0028] Figure 1 is an exploded view of an electronic actuator according to an embodiment of the present application;

[0029] Figure 2 is a structural schematic view of an electronic actuator according to an embodiment of the present application;

[0030] Figure 3 is a structural schematic view of a housing of an electronic actuator according to an embodiment of the present application; Figure 1

[0031] Figure 4 is a sectional view of an electronic actuator according to an embodiment of the present application;

[0032] Figure 5 is a sectional view of a drive worm and a drive motor cooperating with each other of an electronic actuator according to an embodiment of the present application;

[0033] Figure 6 is a structural schematic view of an output gear of an electronic actuator according to an embodiment of the present application;

[0034] Figure 7 is a structural schematic view of an electronic control board of an electronic actuator according to an embodiment of the present application; Figure 1

[0035] Figure 8 is a structural schematic view of an electronic control board of an electronic actuator according to an embodiment of the present application. Figure 2

[0036] REFERENCE NUMERALS:

[0037] electronic actuator 100,

[0038] ​​​Drive motor 1, motor shaft 11, actuator 2, drive worm 21, first embedded metal rod part 211, transmission connection groove 2111, first limiting surface 2112, second limiting surface 2113, first outer plastic layer 212, worm outer tooth part 2121, accommodating cavity 2122, first limiting fitting surface 2123, second limiting fitting surface 2124, loading channel 2125, output gear 22, Second embedded metal rod part 221, mounting part 2211, power output part 2212, second outer plastic layer 222, output outer tooth part 2221, gear set 23, driving gear set 231, transmission gear set 232, driven gear set 233, First gear 234, Second gear 235, Electric control board 3, First plug interface 31, Second plug interface 32, Switch Hall sensor 41, Rotation angle sensor 42, Magnetic ring 5, Housing 6, First limiting part 61, Second limiting part 62, Second electric connecting part 63, Second electric connecting part 631, First electric connecting part 64, Motor connecting part 641, First electric connecting part 642, Cover plate 66, Mounting cavity 67, Gear shaft 68, Sealing ring 7. DETAILED DESCRIPTION

[0039] The embodiments of the present application will be described in detail below with reference to the drawings, wherein the same or similar components are denoted by the same reference numerals throughout the drawings. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and should not be understood as limiting the present application.

[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the features limited as "first" and "second" can be explicitly or implicitly included one or more features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0041] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "mounting", "connection" should be broad sense understanding, for example, it can be fixed connection, also can be detachable connection, or integrally connected;It can be mechanical connection, also can be electrical connection;It can be directly connected, also can be indirectly connected through intermediate medium, it can be the communication inside two elements.For ordinary skilled person in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to specific circumstances.

[0042] Unless otherwise specified, the front-rear direction in the present application is the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction is the lateral direction of the vehicle, i.e., the Y direction; and the up-down direction is the vertical direction of the vehicle, i.e., the Z direction.

[0043] Reference will now be made to Figures 1-8 The electronic actuator 100 according to the embodiment of the utility model is described below. By setting the driving worm 21 to be a combination of an outer plastic material and an inner metal material, the first embedded metal rod portion 211 of the metal is connected to the motor shaft 11, which can improve the connection stability of the driving worm 21 and the driving motor 1, ensure the axial force and circumferential friction force of the driving worm 21 and the motor shaft 11 under different temperature loads, and improve the stability and reliability of the driving force transmission, so as to ensure the use characteristics of the electronic actuator 100 and have a long service life.

[0044] As shown in Figures 1-8 The electronic actuator 100 according to one embodiment of the utility model includes a driving motor 1 and an actuating mechanism 2.

[0045] It should be noted that the electronic actuator 100 can be connected to electronic water valves, air inlet grilles, fuel caps, charging port covers, and other actuating components to form a complete actuating system. The electronic actuator 100 can provide power to the above-mentioned various types of actuating components and control their movement displacement. The electronic actuator 100 has multiple application scenarios, and after being connected to different actuating components, it can be applied to a wide range of movements or a small range of movements to achieve specific movement trajectory requirements, and has strong practicality.

[0046] The driving motor 1 has a motor shaft 11. Specifically, the driving motor 1 is one of the important structures of the electronic actuator 100. The driving motor 1 is a power source, and is used to convert electrical energy into mechanical energy to realize power output of the electronic actuator 100. The driving motor 1 is provided with the motor shaft 11, so that the power of the driving motor 1 can be output through the motor shaft 11.

[0047] The actuating mechanism 2 includes a driving worm 21, an output gear 22, and a plurality of gear sets 23. The plurality of gear sets 23 are sequentially and powerfully connected between the driving worm 21 and the output gear 22.

[0048] Specifically, the driving worm 21 is sequentially connected with the plurality of gear sets 23 in power, one gear of the plurality of gear sets 23 is engaged with the output gear 22, and the driving worm 21 is connected with the driving motor 1, so that the driving force of the driving motor 1 is sequentially transmitted to the driving worm 21, the plurality of gear sets 23 and the output gear 22, to realize the rotation of the driving worm 21, and the rotation of the driving worm 21 sequentially drives the plurality of gear sets 23 to engage and drive, and the output gear 22 is engaged and driven, to realize the power output of the driving motor 1, and the output gear 22 is connected with one execution assembly, that is, the execution assembly can be driven to move, and the rotary motion can be realized, and the linear motion can also be realized.

[0049] Among them, a plurality of gear sets 23 are arranged between the driving worm 21 and the output gear 22, that is, a speed reduction structure is arranged inside the electronic actuator 100, and through a plurality of different gear sets 23, multi-stage speed reduction can be realized, the input high-speed low-torque power can be converted into low-speed high-torque power output, to realize stable power output.

[0050] Among them, as shown in Figure 1 and Figure 5 The driving worm 21 includes a first embedded metal rod part 211 and a first outer plastic layer 212, the first outer plastic layer 212 is integrally injection molded outside the first embedded metal rod part 211, the first embedded metal rod part 211 is connected with the motor shaft 11, and the first outer plastic layer 212 is formed with a worm outer tooth part 2121 which is in transmission cooperation with one of the gear sets 23.

[0051] Specifically, the first outer plastic layer 212 is arranged outside the first embedded metal rod part 211 and coaxially cooperates with the first embedded metal rod part 211, wherein the inside of the driving worm 21 is a metal structure, and the outside structure is a plastic structure, which improves the structural strength of the driving worm 21, and the first embedded metal rod part 211 is connected with the motor shaft 11, so that the driving worm 21 is connected with the motor shaft 11 in power, and as shown in Figure 5 The outer periphery of the first outer plastic layer 212 is provided with a worm outer tooth part 2121 for engaging and driving the gear set 23. Among them, the worm outer tooth part 2121 can be constructed as a single spiral line or a double spiral line worm, and its arrangement mode can be selected according to actual needs.

[0052] The first outer plastic layer 212 is integrally injection molded on the first inner metal rod portion 211. The integrally injection molding can be used to manufacture parts with complex shapes and structures, which is beneficial to the manufacturing of the first outer plastic layer 212 and the first inner metal rod portion 211, and can ensure the integrity and manufacturing precision of the two, and can improve the structural strength of the first outer plastic layer 212 and the first inner metal rod portion 211, so that the connection between the drive worm 21 and the motor shaft 11 is reliable, and can bear a larger load, thereby improving the rotation precision and stability of the drive worm 21. The first inner metal rod portion 211 can provide additional strength and rigidity during the manufacturing process, and can improve the manufacturing quality.

[0053] In addition, the integrally injection molding can simplify the manufacturing process, reduce the number of parts, reduce the connection steps between the first outer plastic layer 212 and the first inner metal rod portion 211, reduce the manufacturing cost, and improve the production efficiency and product quality.

[0054] Further, the first inner metal rod portion 211 and the first outer plastic layer 212 can be driven to rotate simultaneously after the driving motor 1 rotates, and the worm gear portion 2121 of the first outer plastic layer 212 is in meshing transmission with one of the gear sets 23, so as to realize the power transmission from the drive worm 21 to the gear set 23.

[0055] Therefore, the drive worm 21 is generally made of metal or plastic. The drive worm 21 made of metal has high strength, but is difficult to process and has high cost. The drive worm 21 made of plastic is generally made of nylon material and has low price, but the thermal expansion coefficients of nylon and metal are different, which can cause the axial and circumferential movement of the motor shaft during rotation, thereby causing product failure or angle misalignment. In the embodiment, the drive worm 21 is made of outer plastic material and inner metal material, the first inner metal rod portion 211 is connected with the motor shaft 11, the axial force and circumferential friction force between the drive worm 21 and the motor shaft 11 can be ensured under different temperature loads, the stability and reliability of the driving force transmission can be improved, the use characteristics of the electronic actuator 100 can be ensured, the service life is long, and the processing difficulty and cost are low.

[0056] In some embodiments, the end of the first inner metal rod portion 211 is formed with a transmission connection groove 2111 which is open in the axial direction, at least a part of the motor shaft 11 extends into the transmission connection groove 2111 and is in interference fit with the inner wall of the transmission connection groove 2111, and the motor shaft 11 is in circumferential transmission fit with the first inner metal rod portion 211.

[0057] Specifically, as Figure 4 and Figure 5As shown, the first inner metal rod part 211 is formed with a transmission connection groove 2111 at one end close to the motor shaft 11, the transmission connection groove 2111 is arranged at the center of the first inner metal rod part 211, and the transmission connection groove 2111 can be configured as a circular groove extending along the axial direction of the first inner metal rod part 211 and open towards the motor shaft 11, which facilitates the cooperation of the motor shaft 11 and the transmission connection groove 2111.

[0058] The motor shaft 11 is in interference fit with the inner wall of the transmission connection groove 2111, so that the motor shaft 11 is in interference fit with the first inner metal rod part 211 through the transmission connection groove 2111, that is, the first inner metal rod part 211 is press-fitted on the outside of the motor shaft 11, which improves the connection between the two and makes it more stable and reliable, thereby improving the accuracy of the motor shaft 11 driving the driving worm 21 to rotate.

[0059] Specifically, the transmission connection groove 2111 is a circular groove, and the inner diameter thereof can be set to be the same as that of the motor shaft 11, and the inner hole size of the transmission connection groove 2111 is smaller than the outer diameter size of the motor shaft 11, which facilitates the interference fit between the two.

[0060] During installation, at least part of the motor shaft 11 passes through the first outer plastic layer 212 and extends into the transmission connection groove 2111, which can realize the axial connection of the motor shaft 11 and the first inner metal rod part 211, and the connection length of the two in the axial direction is long, which can improve the connection strength of the two and thus improve the reliability of rotation.

[0061] In some embodiments, the first outer plastic layer 212 is formed with an accommodating cavity 2122 and a loading channel 2125 in communication in the axial direction, the first inner metal rod part 211 is located in the accommodating cavity 2122, the transmission connection groove 2111 is in communication towards the loading channel 2125, and the motor shaft 11 enters the transmission connection groove 2111 from the loading channel 2125.

[0062] Specifically, as shown in FIG. 2, the first outer plastic layer 212 is formed with an accommodating cavity 2122 and a loading channel 2125 in communication in the axial direction, the first inner metal rod part 211 is located in the accommodating cavity 2122, the transmission connection groove 2111 is in communication towards the loading channel 2125, and the motor shaft 11 enters the transmission connection groove 2111 from the loading channel 2125. Figure 5As shown, the first outer plastic layer 212 is provided with a receiving cavity 2122 and an insertion channel 2125, the receiving cavity 2122 and the insertion channel 2125 extend along the axial direction of the driving worm 21, and the receiving cavity 2122 and the insertion channel 2125 pass through the axial two ends of the first outer plastic layer 212, wherein the receiving cavity 2122 is used for mounting the first inner metal rod part 211, and the insertion channel 2125 is used for penetrating the motor shaft 11, the transmission connection groove 2111 is arranged at one end of the first metal rod part 211 close to the insertion channel 2125, and the transmission connection groove 2111 is in communication with the insertion channel 2125, wherein the insertion channel 2125 can be a circular groove, and the inner diameter of the transmission connection groove 2111 is the same as that of the insertion channel 2125, and the inner diameter of the insertion channel 2125 is greater than the outer diameter of the motor shaft 11, so that the motor shaft 11 can pass through the insertion channel 2125 and enter the transmission connection groove 2111, and the motor shaft 11 is pressed at the end of the transmission connection groove 2111 away from the insertion channel 2125, thereby realizing the connection of the driving worm 21 and the motor shaft 11.

[0063] Therefore, by arranging the insertion channel 2125 and the transmission connection groove 2111, the matching length of the motor shaft 11 and the driving worm 21 in the axial direction is longer, the connection strength of the motor shaft 11 and the driving worm 21 can be improved, and the installation is reliable and stable.

[0064] In some embodiments, the first inner metal rod part 211 is formed with a first limiting surface 2112 and a second limiting surface 2113 facing away from each other, and the receiving cavity 2122 is formed with a first limiting matching surface 2123 and a second limiting matching surface 2124 distributed opposite to each other, and in the axial direction of the motor shaft 11, the first limiting surface 2112 is limited and pressed against the first limiting matching surface 2123, and the second limiting surface 2113 is limited and pressed against the second limiting matching surface 2124.

[0065] In this way, by the pressing and matching of the first limiting surface 2112 and the first limiting matching surface 2123, and by the pressing and matching of the second limiting surface 2113 and the second limiting matching surface 2124, the reliable connection of the first inner metal rod part 211 and the receiving cavity 2122 can be realized, and the axial two ends of the first inner metal rod part 211 can be limited, so that the connection of the first inner metal rod part 211 and the first outer plastic layer 212 is more reliable.

[0066] And as Figure 5As shown, the axial outer diameter of the first embedded metal rod portion 211 can be different, and the first embedded metal rod portion 211 includes a first rod portion and a second rod portion, the outer diameter of the first rod portion is greater than that of the second rod portion, and the accommodating cavity 2122 of the first outer plastic layer 212 includes a first accommodating cavity and a second accommodating cavity, the inner diameter of the first accommodating cavity is greater than that of the second accommodating cavity, and the two ends of the first accommodating cavity are respectively a first limiting fitting surface 2123 and a second limiting fitting surface 2124, which respectively abut against the first limiting surface 2112 and the second limiting surface 2113 of the second rod portion, thereby achieving axial limiting of the first embedded metal rod portion 211 and the accommodating cavity 2122, and through one-piece injection molding, the structural strength of the driving worm 21 can be greatly improved through the structure and manufacturing method, thereby improving the connection stability with the motor shaft 11.

[0067] The transmission connection groove 2111 is arranged on the first rod portion, and the axial groove depth of the transmission connection groove 2111 is less than the axial length of the first rod portion, so as to ensure the structural strength of the first embedded metal rod portion 211, and the structure is simple, the manufacturing cost is low, and the connection is convenient. The second rod portion protrudes from the end of the first outer plastic layer 212, which can protect the first outer plastic layer 212 to reduce friction, collision and the like.

[0068] In some embodiments, the output gear 22 includes a second embedded metal rod portion 221 and a second outer plastic layer 222, the second outer plastic layer 222 is integrally injection molded outside the second embedded metal rod portion 221, the second embedded metal rod portion 221 is formed with a power output portion 2212, and the second outer plastic layer 222 is formed with an output outer tooth portion 2221 in transmission cooperation with one of the gear sets 23.

[0069] Specifically, the second outer plastic layer 222 is arranged to cover the second embedded metal rod portion 221, and the two are coaxially fitted, wherein the inside of the output gear 22 is a metal structure, and the outside structure is a plastic structure, which improves the structural strength of the output gear 22, and the second embedded metal rod portion 221 is arranged to form the power output portion 2212, such as the power output portion 2212 connected with the external execution assembly, which can realize the power connection between the output gear 22 and the external execution assembly, and as Figure 6 As shown, the output outer tooth portion 2221 is arranged on the outer periphery of the second outer plastic layer 222, which is used for meshing transmission with the gear set 23.

[0070] The second outer plastic layer 222 is integrally injection molded on the outer side of the second inner metal rod part 221. The integrally injection molding can be used to manufacture parts with complex shapes and structures, which is beneficial to the manufacturing of the second outer plastic layer 222 and the second inner metal rod part 221, and can ensure the integrity and manufacturing precision of the two, and can improve the structural strength of the second outer plastic layer 222 and the second inner metal rod part 221, so that the connection between the output gear 22 and the external actuator is reliable, and can bear a larger load, thereby improving the rotation accuracy and stability of the output gear 22. The manufacturing process of the second inner metal rod part 221 can provide additional strength and rigidity, and can improve the manufacturing quality.

[0071] In addition, the integrally injection molding can simplify the manufacturing process, reduce the number of parts, reduce the connection steps between the second outer plastic layer 222 and the second inner metal rod part 221, reduce the manufacturing cost, and improve the production efficiency and product quality.

[0072] Further, the driving force of the driving motor 1 is transmitted to the driving worm 21, the plurality of gear sets 23, the output gear 22 and the external actuator in sequence, so that after the driving force is transmitted to the plurality of gear sets 23, the gear sets 23 are engaged with the output outer gear part 2221 of the second outer plastic layer 222 to drive, and the second inner metal rod part 221 is driven, thereby driving the external actuator to move.

[0073] Therefore, the output gear 22 is generally made of plastic or metal material. The plastic material is low in price, but the shaft strength of the output gear 22 made of plastic material is low, which may cause product failure or angle misalignment when subjected to external factors such as vibration and impact. In the embodiment, the output gear 22 is made of outer plastic material and inner metal material, which can improve the stability and reliability of the driving force transmission, and ensure the use characteristics and long service life of the electronic actuator 100.

[0074] In some embodiments, the power output part 2212 is arranged at one end of the second inner metal rod part 221, and the other end of the second inner metal rod part 221 is provided with a mounting part 2211 for mounting the rotation angle sensor 42.

[0075] Specifically, as shown in Figure 6 The one end of the second inner metal rod part 221 is provided as a power output part 2212 for the power output of the output gear 22. The power output part 2212 can be connected to the external actuator through a connecting member, and the power output transmitted to the output gear 22, and as shown in Figure 6As shown, the other end of the second embedded metal rod part 221 is provided with a rotation angle sensor 42 through a mounting part 2211, so that the rotation angle sensor 42 is connected with the second embedded metal rod part 221 as a whole, and synchronous movement of the two can be realized.

[0076] Further, when the gear set 23 is engaged with the output gear 22, the second embedded metal rod part 221 rotates, the driving force can be transmitted outward, and the rotation angle sensor 42 rotates with the second embedded metal rod part 221, and the rotation angle sensor 42 can output the rotation angle of the output gear 22.

[0077] Therefore, by setting one end of the second embedded metal rod part 221 as a power output part 2212, and the other end connected with the rotation angle sensor 42, power output can be realized, and the number of rotation of the output gear 22 can be directly detected through the mounting part 2211, without affecting each other, and the two are integrated, the structure is more compact, and the detection method is simple and reliable.

[0078] It should be noted that the connecting part can be a spline, so that the output gear 22 is connected with the external execution assembly through the spline, the reliability and firmness of the connection can be improved, and the accuracy of power output is improved.

[0079] The mounting part 2211 is in the form of a semi-cylindrical shape, and the rotation angle sensor 42 is in the form of a potentiometer, which is sleeved on the mounting part 2211 and is in circumferential transmission cooperation with the mounting part 2211, so that the connection between the potentiometer and the mounting part 2211 is firm and reliable.

[0080] Therefore, the circumferential direction of the rotation angle sensor 42 can be limited, so as to avoid the rotation angle sensor 42 from being separated from the mounting part 2211, so that the rotation angle sensor 42 can be driven to rotate synchronously when the second embedded metal rod part 221 rotates, and the rotation angle sensor 42 can directly output the rotation angle of the output gear 22.

[0081] As shown, Figure 6 The semi-cylindrical shape is a D-shaped shaft, and the mounting part 2211 and the potentiometer can be provided with an interference fit, so that the connection strength between the two can be improved, and the angle output accuracy can be ensured, and the mounting part 2211 is made of metal material, so that the mounting part 2211 can be prevented from being broken due to manufacturing and assembly errors, and external loads such as vibration and impact, so as to improve product quality and motion stability.

[0082] As shown, Figure 1As shown, the power output part 2212 of the output gear 22 is connected with the shell 6 through the sealing ring 7, the sealing between them can be realized, so as to ensure the reliability of the installation of the output gear 22 and the shell 6, and the end of the second inner metal rod part 221 is inserted into the connecting hole of the cover plate 66, the fixation of the second inner metal rod part 221 is realized, so as to make the output gear 22 rotate stably and improve the precision of motion and torque output.

[0083] In some embodiments, the plurality of gear sets 23 includes one driving gear set 231, at least one transmission gear set 232 and one driven gear set 233, and the at least one transmission gear set 232 is power-connected between the driving gear set 231 and the driven gear set 233.

[0084] Specifically, the driving gear set 231 is used to realize the connection of the plurality of gear sets 23 with the power input end, the transmission gear set 232 is used to realize the power transmission, and the driven gear set 233 is used to realize the power output, and in this embodiment, as shown, Figure 1 As shown, the driving gear set 231, the transmission gear set 232 and the driven gear set 233 are one set, and they are power-connected in sequence, so that the power of the driving gear set 231 can be transmitted to the driven gear set 233 through the transmission gear set 232, so that the driving gear set 231 drives the transmission gear set 232 and the driven gear set 233 in sequence.

[0085] And the transmission gear set 233 can also be two, three or the like, and different setting modes are selected according to different power output sizes.

[0086] Among them, the driving gear set 231 is engaged with the worm outer tooth part 2121 for transmission, and the driven gear set 233 is engaged with the output outer tooth part 2221 for transmission.

[0087] Specifically, the driving gear set 231, the transmission gear set 232 and the driven gear set 233 are each provided with at least one gear, the driving gear set 231 is engaged with the worm outer tooth part 2121 of the driving worm 21, and the driven gear set 233 is engaged with the output outer tooth part 2221 of the output gear 22, and the motor shaft 11 of the driving motor 1 is connected with the driving worm 21, so that the driving motor 1 drives the driving worm 21, the driving gear set 231, the transmission gear set 232, the driven gear set 233 and the output gear 22 in sequence, and then the motion of the external execution assembly is realized. And the power of the driving motor 1 can be transmitted through a plurality of different gear sets 3 to realize multi-stage reduction, so as to realize low-speed high-torque power output and stable power output.

[0088] In some embodiments, each gear set 23 includes a first gear 234 and a second gear 235 coaxially distributed. The outer diameter of the first gear 234 is larger than the outer diameter of the second gear 235. In two adjacent gear sets 23, the first gear 234 of one gear set 23 meshes with the second gear 235 of the other gear set 23. The first gear 234 of each gear set 23 is configured as the driving gear and the second gear 235 is configured as the driven gear.

[0089] Specifically, such as Figure 1 As shown, each gear set 23 includes a first gear 234 and a second gear 235, which are coaxially distributed, allowing them to rotate simultaneously. The outer diameter of the first gear 234 is larger than that of the second gear 235. In gear transmission, gears with larger outer diameters typically have slower rotational speeds, while gears with smaller outer diameters have faster rotational speeds. The first gear 234 can be designated as the driving gear, and the second gear 235 can be designated as the driven gear, i.e., two adjacent gears... The meshing of gear set 23 can be achieved by the first gear 234 driving the second gear 235 to rotate. In the three gear sets 23 that transmit power in sequence, the first gear 234 of the driving gear set 231 meshes with the second gear 235 of the transmission gear set 232, and the first gear 231 of the transmission gear set 232 meshes with the output gear 22. In this way, the gears in the three gear sets 23 can mesh in an axially staggered manner, which can realize the sequential transmission of power and save the arrangement space of multiple gear sets 23. The overall structure is more compact and the volume is smaller.

[0090] Therefore, by using the difference in gear size, when the driving gear with a larger outer diameter drives the driven gear with a smaller outer diameter, the speed of the driven gear will increase, but the torque will decrease; conversely, if the outer diameter of the driving gear is small and the outer diameter of the driven gear is large, the speed of the driven gear will decrease, but the torque will increase. In this way, through the meshing method set above, multi-stage reduction can be achieved so that the output gear can output the required speed and torque.

[0091] Furthermore, the first gear 234 can be set as the driven gear and the second gear 235 as the driving gear, which can be selectively set according to different reduction ratios.

[0092] Furthermore, the drive gear set 231, the transmission gear set 232, and the driven gear set 233 are respectively connected to the housing 6 via gear shaft 68. The gear shaft 68 can be integrally formed with the housing, which can ensure the reliability of the installation and the stability of the rotation of the drive gear set 231, the transmission gear set 232, and the driven gear set 233.

[0093] In some embodiments, the electronic actuator 100 further comprises a housing 6, the driving motor 1 and the actuator 2 are mounted in the housing 6, and the housing 6 is provided with an electric control panel 3 electrically connected with the driving motor 1.

[0094] Specifically, the housing 6 is a protective layer of the electronic actuator 100, and also plays a role in supporting and connecting various components. As shown in Figures 1-3 The housing 6 is formed with a mounting cavity 67 for accommodating and protecting the driving motor 1, the actuator 2 and other key components, and each component is detachably connected in the housing 6, and the electronic actuator 100 comprises a cover plate 66 which is detachably connected with the housing 6, and the housing 6 is provided with the electric control panel 3, and the driving motor 1, the actuator 2 and the electric control panel 3 are closed in the mounting cavity 67 through the cover plate 66 and the housing 6, so that the external structure of the electronic actuator 100 is flat, and the overall structure is convenient for carrying and transferring.

[0095] Further, as shown in Figure 1 The electric control panel 3 is electrically connected with the driving motor 1, so that the electric control panel 3 can control the operation of the driving motor 1, such as connecting the electric control panel 3 with the driving motor 1 through wires or cables, terminals and the like, the electric control panel 3 can send signals to the driving motor 1 through electrical connection, and can control the speed and direction of the driving motor 1, so as to improve the motion stability and accuracy of the driving motor 1, and the electric control panel 3 can also transmit the electric energy provided by the battery pack or other power supply to the driving motor 1 through electrical connection, to provide power for the operation of the driving motor 1.

[0096] The housing 6 is provided with a first electrical connector 64, the first electrical connector 64 is integrally injection molded with the housing 6, and the two ends of the first electrical connector 64 are respectively configured as a motor connecting portion 641 and a first electrical connecting portion 642, the motor connecting portion 641 is connected with the driving motor 1 through plug-in connection, and the first electrical connecting portion 642 is connected with the electric control panel 3 through plug-in connection.

[0097] Specifically, as shown in Figure 3 The first electrical connector 64 is located in the housing 6, and at least part of the structure of the first electrical connector 64 can be integrally injection molded with the housing 6, so as to realize the connection and fixation of the first electrical connector 64, and the first electrical connector 64 is used to realize the electrical connection between the driving motor 1 and the electric control panel 3.

[0098] The first electric connecting piece 64 includes two, and two ends of the two first electric connecting pieces 64 are respectively configured as a motor connecting part 641 and a first electric connecting part 642, and the two ends of the two first electric connecting pieces 64 are respectively a motor positive electrode connecting part and a motor negative electrode connecting part, wherein the electric control board 3 is located between the cover plate 66 and the shell 6, the electric control board 3 is provided with a first plug interface 31, the positive electrode of the motor is connected to the motor positive electrode connecting part through plug connection, and the negative electrode of the motor is connected to the motor negative electrode connecting part through plug connection, so that the electric connection between the driving motor 1 and the first electric connecting piece 64 can be realized, and then the two first electric connecting parts 642 are connected to the first plug interface 31 of the electric control board 3 through plug connection, so that the electric connection between the driving motor 1 and the electric control board 3 can be realized.

[0099] Further, after the electronic actuator 100 works, the electric control board 3 can control the start and stop of the driving motor 1 through the first electric connecting piece 64, and can control the forward and reverse rotation of the driving motor 1, and the electric control board 3 can adjust the voltage and current at the two first electric connecting pieces 64, and can control the speed, torque and other parameters of the driving motor 1, so that the driving motor 1 can stably operate.

[0100] Therefore, the electric connection between the driving motor 1 and the electric control board 3 can be realized through the first electric connecting piece 64, and by arranging the first electric connecting piece 64 to replace the traditional line connection, the overall line installation can be simplified, the connection is simpler and more convenient, the cost of the connection line is reduced, and by arranging the first electric connecting piece 64 to be integrally injection molded with the shell 6, the connection between the two can be reliable and stable, thereby improving the working stability of the driving motor 1, and the connection steps of the first electric connecting piece 64 and the shell 6 can be reduced, the assembly time is reduced, the production efficiency and product quality are improved, and the disassembly and maintenance are convenient.

[0101] The first electric connecting part 642 of the first electric connecting piece 64 is configured as a fisheye pin and is pressed into the electric control board 3, and the motor connecting part 641 is configured as a pin structure and is pressed into the positive and negative electrodes of the driving motor 1, so that the connection is simpler and more reliable.

[0102] In addition, it should be noted that, as Figure 1 and Figure 7As shown, the electric control board 3 is also provided with a switch Hall sensor 41, the driving worm 21 is provided with a magnetic ring 5 on the side away from the driving motor 1, and the magnetic ring 5 is used in cooperation with the switch Hall sensor 42 to enable the switch Hall sensor 41 to obtain effective magnetic field induction and detect the rotation angle of the driving worm 21, wherein the magnetic ring 5 is a pair of poles or multiple pairs of poles, the rotation number of the driving motor 1 is calculated through the number of high-low pulse switching times and the number of pole pairs, and the rotation angle of the output gear 22 is calculated through the speed reduction ratio of the multiple gear set 23. The switch Hall sensor 41 is connected with the electric control board 3 to realize signal transmission therebetween, and the rotation angle sensor 42 is also connected with the electric control board 3 to realize signal transmission therebetween, so as to improve the detection accuracy of the two sensors.

[0103] In some embodiments, the shell 6 is also provided with a second electric connecting piece 63, the second electric connecting piece 63 is integrally injection molded with the shell 6, one end of the second electric connecting piece 63 is located in the shell 6 and forms a second electric connecting part 631, the other end of the second electric connecting piece 63 is located outside the shell 6 and forms a third electric connecting part, the second electric connecting part 631 is connected with the electric control board 3 through plug-in connection, and the third electric connecting part is used for plug-in connection with the main controller located outside the shell 6.

[0104] Specifically, as shown in the figure, Figure 3 The second electric connecting piece 63 penetrates the shell 6, at least part of the structure of the second electric connecting piece 63 can be integrally injection molded with the shell 6, and the connection and fixation of the second electric connecting piece 63 can be realized, wherein the two ends of the second electric connecting piece 63 are respectively the second electric connecting part 631 and the third electric connecting part, the electric control board 3 is provided with a second plug-in port 32, the second electric connecting piece 63 penetrates the shell 6, the second electric connecting part 631 is located in the shell 6 and is plug-in connected with the second plug-in port 32 of the electric control board 3, and the third electric connecting part is located outside the shell 6 and is plug-in connected with the main controller, so as to realize the electrical connection between the electric control board 3 and the main controller.

[0105] Further, the main controller controls the work of the electric control board 3 through the second electric connecting piece 63, after the electronic actuator 100 works, the main controller sends an instruction to the electric control board 3 to control the work of the driving motor 2, the first detection piece 41 and the second detection piece 42, so that the output gear 22 can output the set angle, and the electric control board 3 also sends an instruction to the main controller.

[0106] Thus, the electrical connection between the electric control board 3 and the main controller can be achieved through the second electrical connecting piece 63. By arranging the second electrical connecting piece 63 to replace the traditional wiring connection, the overall wiring installation can be simplified, and the connection is simpler and more convenient, reducing the cost of the connection line. By arranging at least part of the structure of the second electrical connecting piece 63 to be integrally injection molded with the shell 6, the connection between the two can be reliable and stable, thereby improving the working stability of the driving motor 1, and reducing the connection steps of the second electrical connecting piece 63 and the shell 6, reducing the assembly time, improving the production efficiency and product quality, and facilitating disassembly and maintenance.

[0107] In some embodiments, the second electrical connecting piece 63 can be arranged as multiple, and the second electrical connecting piece 63 can be two, three, four, five, etc., and the second electrical connecting part 631 of the second electrical connecting piece 63 is configured as a fisheye pin, and the third electrical connecting part is configured as a pin structure, and the connection is simpler and more reliable.

[0108] In some embodiments, the first embedded metal rod part 211 is provided with a first limiting piece 61 between the end away from the driving motor 1 and the shell 6, and the driving motor 1 is provided with a second limiting piece 62 at the end away from the first embedded metal rod part 211.

[0109] Specifically, as shown in Figure 3 and Figure 4 The first limiting piece 61 and the second limiting piece 62 are respectively distributed in the axial direction of the motor shaft 11 of the driving motor 1, and the first limiting piece 61 is located at the end of the driving worm 21 away from the driving motor 1, and the second limiting piece 62 is located at the end of the driving motor 1 away from the driving worm 21, so that the spacing between the first limiting piece 61 and the second limiting piece 62 is greater than the axial total length of the driving motor 1 and the driving worm 21. In this way, the axial displacement of the driving motor 1 can be limited, and the driving motor 1 can be protected.

[0110] Further, the spacing between the first limiting piece 61 and the second limiting piece 62 is greater than the axial play of the driving motor 1. During the operation of the driving motor 1, the driving motor 1 will be subjected to the axial reaction force brought by the driving worm 21, and the driving motor 1 will run stably under the action of the axial limiting washer inside it. When the load is large, the axial limiting washer inside the driving motor 1 is easy to be damaged, and its limiting effect is invalid. The first limiting piece 61 and the second limiting piece 62 can limit and press the driving motor 1, thereby protecting the driving motor 1.

[0111] Therefore, by arranging the first limiting member 61 and the second limiting member 62, the operation of the driving motor 1 is more reliable and safe, and problems such as abnormal sound and jamming of the driving motor 1 are avoided, thereby prolonging the service life of the driving motor 1 and ensuring the stability and continuity of the operation of the electronic actuator 100.

[0112] The first limiting member 61 and the second limiting member 62 can be configured as gaskets, which can increase the contact area with the motor shaft 11, and the first limiting member 61 and the second limiting member 62 can be integrally injection molded with the shell 6, which can improve the connection strength and manufacturing precision of the first limiting member 61 and the second limiting member 62 with the shell 6, thereby improving the pressing reliability of the driving motor 1.

[0113] The first limiting member 61 and / or the second limiting member 62 are made of plastic or metal material, that is, the materials of the first limiting member 61 and the second limiting member 62 can be the same or different, one of which is made of plastic material, and the other is made of metal material, or both of which are made of plastic material or metal material, which has various setting modes and can be flexibly selected.

[0114] The plastic material can be Teflon, which has high wear resistance with the motor shaft 11 of the driving motor, can well limit the movement between the first limiting member 61 and the second limiting member 62 and the motor shaft 11 of the driving motor 1, thereby effectively protecting the driving motor 1, and the first limiting member 61 and the second limiting member 62 are not easy to wear and have long service life.

[0115] The utility model also provides an electric appliance.

[0116] The electric appliance can be a household curtain, door, window or the like, the execution mechanism 2 of the electronic actuator 100 is connected with the execution assembly power of the electric appliance, the opening or closing function of the electric appliance can be realized, the electronic actuator 100 can drive the electric appliance to move linearly or rotate, the application range of the electronic actuator 100 is increased, the driving effect is good, the use is more convenient, and the development of the electronic actuator 100 in the automation field is facilitated.

[0117] And the electronic actuator 100 is provided with the driving motor 1 and the actuating mechanism 2, the driving worm 21 is combined with the outer plastic material and the inner metal material, the first embedded metal rod part 211 of the metal is connected with the motor shaft 11, the connection stability of the driving worm 21 and the driving motor 1 can be improved, the axial force and the circumferential friction force of the driving worm 21 and the motor shaft 11 under different temperature loads can be ensured, the stability and the reliability of the driving force transmission can be improved, the use characteristics of the electronic actuator 100 are ensured, and the service life is long.

[0118] The utility model also proposes a vehicle.

[0119] According to the vehicle of the utility model embodiment, the actuating mechanism 2 of the electronic actuator 100 is connected with the power of the charging port cover and the refueling cover and other execution components of the vehicle, the opening or closing function of the charging port cover or the refueling cover can be realized, the electronic actuator 100 can drive the external execution component to move linearly or rotate, the application range of the electronic actuator 100 is increased, the driving effect is good, the use is more convenient, and the development of the electronic actuator 100 in the automatic field of the vehicle is facilitated.

[0120] And the electronic actuator 100 is provided with the driving motor 1 and the actuating mechanism 2, the driving worm 21 is combined with the outer plastic material and the inner metal material, the first embedded metal rod part 211 of the metal is connected with the motor shaft 11, the connection stability of the driving worm 21 and the driving motor 1 can be improved, the axial force and the circumferential friction force of the driving worm 21 and the motor shaft 11 under different temperature loads can be ensured, the stability and the reliability of the driving force transmission can be improved, the use characteristics of the electronic actuator 100 are ensured, and the service life is long.

[0121] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0122] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, the scope of the utility model is defined by the claims and its equivalents.

Claims

1. An electronic actuator, characterized in that, include: A drive motor, the drive motor having a motor shaft; An actuator, comprising a drive worm, an output gear, and multiple gear sets, wherein the multiple gear sets are sequentially and power-connected between the drive worm and the output gear; The drive worm includes a first embedded metal rod and a first outer plastic layer. The first outer plastic layer is integrally injection molded outside the first embedded metal rod. The first embedded metal rod is connected to the motor shaft. The first outer plastic layer has an external worm tooth that engages with one of the gear sets.

2. The electronic actuator according to claim 1, characterized in that, One end of the first embedded metal rod has an axially open transmission connection groove. At least a portion of the motor shaft extends into the transmission connection groove and is interference-fitted with the inner wall of the transmission connection groove. The motor shaft is circumferentially driven by the first embedded metal rod.

3. The electronic actuator according to claim 2, characterized in that, The first outer plastic layer has an axially connected receiving cavity and an insertion channel. The first embedded metal rod is located in the receiving cavity. The transmission connection groove is connected to the insertion channel. The motor shaft enters the transmission connection groove from the insertion channel.

4. The electronic actuator according to claim 3, characterized in that, The first embedded metal rod portion has a first limiting surface and a second limiting surface that are opposite to each other, and the receiving cavity has a first limiting mating surface and a second limiting mating surface that are relatively distributed. Along the axial direction of the motor shaft, the first limiting surface presses against the first limiting mating surface, and the second limiting surface presses against the second limiting mating surface.

5. The electronic actuator according to claim 1, characterized in that, The output gear includes a second inner metal rod and a second outer plastic layer. The second outer plastic layer is integrally injection molded outside the second inner metal rod. The second inner metal rod forms a power output part, and the second outer plastic layer forms an output external tooth part that drives and cooperates with another gear set.

6. The electronic actuator according to claim 5, characterized in that, The power output section is located at one end of the second embedded metal rod, and the other end of the second embedded metal rod is provided with a mounting section for mounting a rotation angle sensor.

7. The electronic actuator according to claim 5, characterized in that, The plurality of gear sets include a driving gear set, at least one transmission gear set and a driven gear set, wherein at least one transmission gear set is poweredly connected between the driving gear set and the driven gear set; The driving gear set meshes with the external teeth of the worm gear for transmission, and the driven gear set meshes with the external teeth of the output gear for transmission.

8. The electronic actuator according to claim 1, characterized in that, Each gear set includes a first gear and a second gear that are coaxially distributed, wherein the outer diameter of the first gear is larger than the outer diameter of the second gear; In two adjacent gear sets, the first gear of one gear set meshes with the second gear of the other gear set, and the first gear of each gear set is configured as the driving gear and the second gear is configured as the driven gear.

9. The electronic actuator according to any one of claims 1-8, characterized in that, It also includes a housing, in which the drive motor and the actuator are both installed, and an electronic control board electrically connected to the drive motor is also provided inside the housing; The housing is provided with a first electrical connector, which is integrally injection molded with the housing. The two ends of the first electrical connector are respectively constructed as a motor connection part and a first electrical connection part. The motor connection part is plugged into the drive motor, and the first electrical connection part is plugged into the electronic control board.

10. The electronic actuator according to claim 9, characterized in that, The housing is also provided with a second electrical connector, which is integrally injection molded with the housing. One end of the second electrical connector is located inside the housing and forms a second electrical connection portion, while the other end of the second electrical connector is located outside the housing and forms a third electrical connection portion. The second electrical connection portion is plugged into and connected to the electronic control board, and the third electrical connection portion is used to plug into and connect to the main controller located outside the housing.

11. The electronic actuator according to claim 9, characterized in that, The first embedded metal rod portion has a first limiting member between the end opposite to the drive motor and the housing, and the drive motor has a second limiting member at the end opposite to the first embedded metal rod portion; The first limiting member and / or the second limiting member are made of plastic or metal materials.

12. An electrical appliance, characterized in that, Includes the electronic actuator according to any one of claims 1-11.

13. A vehicle, characterized in that, Includes the electronic actuator according to any one of claims 1-11.

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