Electronic actuators, appliances and vehicles

Abstract

The utility model discloses an electronic executor, electrical equipment and vehicle, the electronic executor includes: drive motor, the executive mechanism, and the executive mechanism includes drive worm, output gear and a plurality of gear sets, and drive worm is connected in drive motor's motor shaft, and a plurality of gear sets are sequentially power connected between drive worm and output gear, electric control board, and electric control board is connected with drive motor electricity, detection structure, and detection structure includes first detection piece and second detection piece, and first detection piece is suitable for installing in electric control board or drive worm for rotating detection to drive worm, and second detection piece is suitable for installing in electric control board or output gear for angle detection to output gear. The utility model discloses an electronic executor, and stable, reliable can be compatible with the use demand of different detection piece, and the use effect is good, and the structure integration degree is high, need not to develop the mould again, has reduced the setting cost.

Description

Technical Field

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

[0002] Currently, vehicles are equipped with actuator assemblies that provide power and control for the movement of components such as electronic water valves, air intake grilles, fuel filler caps, and charging port covers. The actuator assembly uses a motor to rotate a worm gear and gear system, and sensors detect the rotational position. However, existing actuator assemblies cannot meet the detection requirements of different sensors, resulting in structural incompatibility. This necessitates the creation of at least two new molds during manufacturing, leading to high costs and room for improvement. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an electronic actuator that is stable and reliable in operation, compatible with the needs of different detection components, has good performance, and features high structural integration, eliminating the need for redeveloping molds and reducing setup costs.

[0004] An electronic actuator according to an embodiment of the present invention includes: a drive motor; an actuator including a drive worm, an output gear, and a plurality of gear sets, wherein the drive worm is connected to the motor shaft of the drive motor, and the plurality of gear sets are sequentially and power-connected between the drive worm and the output gear; an electronic control board electrically connected to the drive motor; and a detection structure including a first detection element and a second detection element, wherein the first detection element is adapted to be installed on the electronic control board or the drive worm for detecting the rotation of the drive worm, and the second detection element is adapted to be installed on the electronic control board or the output gear for detecting the angle of the output gear.

[0005] According to the embodiment of the present invention, the electronic actuator, by setting up a drive motor, an actuator, an electronic control board and a detection structure, can make the actuator run stably and reliably. The detection structure includes a first detection element and a second detection element, which can realize the rotation detection of the output gear of the actuator by the first detection element and the second detection element respectively. It can be compatible with the use requirements of different detection elements, has good performance, and has a high degree of structural integration. It does not require the redevelopment of molds, thus reducing the setup cost.

[0006] According to some embodiments of the present invention, the electronic actuator includes a first embedded metal rod portion and a first outer plastic layer. The first outer plastic layer is integrally injection molded outside the first embedded metal rod portion. The first embedded metal rod portion is connected to the motor shaft of the drive motor. The first outer plastic layer has a worm gear portion that is in transmission cooperation with one of the gear sets.

[0007] According to some embodiments of the present invention, in the electronic actuator, a magnetic sensing element is mounted on the outside of the first outer plastic layer, and the first detection element is mounted on the electronic control board. The first detection element and the magnetic sensing element cooperate to perform rotation detection.

[0008] According to some embodiments of the present invention, the magnetic sensing element of the electronic actuator is constructed as a magnetic ring, which is sleeved on the first outer plastic layer and circumferentially limited to the first outer plastic layer.

[0009] The first detection element is configured as a switch Hall sensor, and the magnetic ring is adapted to rotate relative to the switch Hall sensor with the drive worm gear.

[0010] According to some embodiments of the present invention, in the electronic actuator, the end of the first embedded metal rod is formed with a transmission connection groove that is open along the axial direction. At least a portion of the motor shaft of the drive motor extends into the transmission connection groove and is interference-fitted with the inner wall of the transmission connection groove. The motor shaft of the drive motor is circumferentially driven by the first embedded metal rod.

[0011] According to some embodiments of the present invention, the output gear includes a second inner metal rod portion and a second outer plastic layer. The second outer plastic layer covers the second inner metal rod portion. The second inner metal rod portion forms a power output portion, and the second outer plastic layer forms an output external tooth portion that drives and cooperates with one of the gear sets.

[0012] According to some embodiments of the present invention, the power output part is disposed 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, the second detection element is mounted on the mounting part, and the second detection element is electrically connected to the electronic control board.

[0013] According to some embodiments of the present invention, the electronic actuator has a semi-cylindrical mounting portion and a potentiometer as the second detection element. The potentiometer is sleeved outside the mounting portion and is circumferentially driven in conjunction with the mounting portion.

[0014] The electronic actuator according to some embodiments of the present invention further includes: a housing, wherein the drive motor, the actuator and the electronic control board are all installed in the housing, at least a portion of the drive worm is sleeved outside the motor shaft of the drive motor, and the drive worm and the drive motor are axially opposite each other;

[0015] 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.

[0016] According to some embodiments of the present invention, the electronic actuator of the housing is further provided with a second electrical connector, the second electrical connector being integrally injection molded with the housing, one end of the second electrical connector being located inside the housing and forming a second electrical connection portion, the other end of the second electrical connector being located outside the housing and forming a third electrical connection portion, the second electrical connection portion being plugged into and connected to the electronic control board, and the third electrical connection portion being used to plug into and connect to the main controller located outside the housing.

[0017] According to some embodiments of the present invention, the electronic actuator has a first limiting member and / or a second limiting member inside the housing. The first limiting member is located at the end of the drive worm gear away from the drive motor, and the second limiting member is located at the end of the drive motor away from the drive worm gear.

[0018] The first limiting member and / or the second limiting member are made of plastic or metal materials.

[0019] This utility model also proposes an electrical device.

[0020] The electrical device according to the present invention includes the electronic actuator of any of the above embodiments.

[0021] This utility model also proposes a vehicle.

[0022] The vehicle according to the present invention includes the electronic actuator of any of the above embodiments.

[0023] The vehicle and the aforementioned electrical equipment and electronic actuators have the same advantages over the prior art, which will not be repeated here.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0026] Figure 1 This is an exploded view of the electronic actuator according to an embodiment of the present utility model;

[0027] Figure 2 This is a schematic diagram of the structure of an electronic actuator according to an embodiment of the present utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the housing of the electronic actuator according to an embodiment of the present utility model. Figure 1 ;

[0029] Figure 4 This is a cross-sectional view of the electronic actuator according to an embodiment of the present utility model;

[0030] Figure 5 This is a cross-sectional view of the drive worm gear and drive motor of the electronic actuator according to an embodiment of the present utility model;

[0031] Figure 6 This is a schematic diagram of the structure of the output gear of the electronic actuator according to an embodiment of the present invention;

[0032] Figure 7 This is a schematic diagram of the structure of the electronic control board of the electronic actuator according to an embodiment of the present utility model. Figure 1 ;

[0033] Figure 8 This is a schematic diagram of the structure of the electronic control board of the electronic actuator according to an embodiment of the present utility model. Figure 2 ;

[0034] Figure 9 This is a schematic diagram of the structure of the first electrical connector of the electronic actuator according to an embodiment of the present utility model;

[0035] Figure 10 This is a schematic diagram of the structure of the housing of the electronic actuator according to an embodiment of the present utility model. Figure 2 ;

[0036] Figure 11 This is a schematic diagram of the structure of the second electrical connector of the electronic actuator according to an embodiment of the present utility model.

[0037] Figure label:

[0038] Electronic actuator 100,

[0039] Drive motor 1, drive motor shaft 11, actuator 2, drive worm 21, first embedded metal rod portion 211, transmission connecting groove 2111, first outer plastic layer 212, worm external gear portion 2121, output gear 22, second embedded metal rod portion 221, mounting portion 2211, power output portion 2212, second outer plastic layer 222, output external gear portion 2221, gear set 23, first gear 231, second gear 232, third gear Wheel 233, electronic control board 3, first insertion interface 31, second insertion interface 32, detection structure 4, first detection component 41, second detection component 42, magnetic induction component 5, housing 6, first limiting component 61, second limiting component 62, second electrical connector 63, second electrical connection part 631, third electrical connection part 632, first electrical connector 64, motor connection part 641, first electrical connection part 642, cover plate 66, mounting cavity 67, gear shaft 68, sealing ring 7. Detailed Implementation

[0040] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0041] In the description of this utility model, 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," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] Unless otherwise specified, the front-back direction in this application refers to the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction refers to the lateral direction of the vehicle, i.e., the Y direction; and the up-down direction refers to the vertical direction of the vehicle, i.e., the Z direction.

[0044] The following is for reference. Figures 1-11 The electronic actuator 100 according to an embodiment of the present invention, by setting up a drive motor 1, an actuator 2, an electronic control board 3 and a detection structure 4, can make the actuator 2 run stably and reliably. The detection structure 4 includes a first detection element 41 and a second detection element 42, which can realize the rotation detection of the output gear 22 of the actuator 2 by the first detection element 41 and the second detection element 42 respectively. It can be compatible with the use requirements of different detection elements, has good use effect, and has a high degree of structural integration. It does not require the redevelopment of molds, thus reducing the setup cost.

[0045] like Figures 1-11 As shown, an electronic actuator 100 according to an embodiment of the present invention includes: a drive motor 1, an actuator 2, an electronic control board 3, and a detection structure 4.

[0046] It should be noted that the electronic actuator 100 can be connected to actuator components such as electronic water valve, air intake grille, fuel filler cap, and charging port cover to form a complete actuator system. The electronic actuator 100 can provide power and control the movement and displacement of the above-mentioned various types of actuator components. The electronic actuator 100 has many application scenarios. After being connected with different actuator components, it can be applied to a wide range of movements or to a small range of movements to achieve specific movement trajectory requirements, making it highly practical.

[0047] The drive motor 1 is one of the important structures of the electronic actuator 100. The drive motor 1 is a power source and is used to convert electrical energy into mechanical energy, which can realize the power output of the electronic actuator 100.

[0048] The actuator 2 includes a drive worm 21, an output gear 22, and multiple gear sets 23. The drive worm 21 is connected to the motor shaft 11 of the drive motor, and the multiple gear sets 23 are sequentially powered between the drive worm 21 and the output gear 22.

[0049] Specifically, the actuator 2 is powered by the drive motor 1, and the motor shaft 11 of the drive motor is powered by the drive worm 21. The drive worm 21 is powered by multiple gear sets 23 in sequence, and one gear of each gear set 23 meshes with the output gear 22. In this way, the driving force of the drive motor 1 can be transmitted sequentially to the drive worm 21, the multiple gear sets 23 and the output gear 22 to realize the rotation of the drive worm 21. The rotation of the drive worm 21 drives the multiple gear sets 23 to mesh and transmit power, and also meshes with the output gear 22 to realize the power output of the drive motor 1. The output gear 22 is connected to an actuator component, which can drive the actuator component to move, realizing both rotary and linear motion.

[0050] Multiple gear sets 23 are arranged between the drive worm 21 and the output gear 22. That is, the electronic actuator 100 has a reduction structure inside. Multiple different gear sets 23 can realize multi-stage reduction, which can convert the input high-speed low-torque power into low-speed high-torque power output to achieve stable power output.

[0051] The electronic control board 3 is electrically connected to the drive motor 1, enabling the electronic control board 3 to control the operation of the drive motor 1. For example, the electronic control board 3 and the drive motor 1 are connected through wires, cables, terminals, etc. The electronic control board 3 can send signals to the drive motor 1 through the electrical connection, and can control the speed and direction of the drive motor 1, thereby improving the motion stability and accuracy of the drive motor 1. In addition, the electronic control board 3 can also transmit the electrical energy provided by the battery pack or other power sources to the drive motor 1 through the electrical connection, providing power for the operation of the drive motor 1.

[0052] The detection structure 4 includes a first detection element 41 and a second detection element 42. The first detection element 41 is adapted to be installed on the electronic control board 3 or the drive worm gear 21 for rotation detection of the drive worm gear 21. The second detection element 42 is adapted to be installed on the electronic control board 3 or the output gear 22 for angle detection of the output gear 22.

[0053] In actual design, the first detection element 41 and the second detection element 42 can both be installed on the electronic control board 3, or the first detection element 41 can be installed on the drive worm gear 21 and the second detection element 42 can be installed on the output gear 22. In this way, the first detection element 41 can detect the rotation of the drive worm gear 21, and the second detection element 42 can detect the rotation angle of the output gear 22. There are various ways to set them, and they can be selectively set according to the actual space requirements.

[0054] The first detection element 41 and the second detection element 42 are both used to detect the rotation of the output gear 22. The first detection element 41 can detect the number of rotations of the drive worm 21, and combined with the reduction ratio of the multiple gear sets 23, the rotation angle of the output gear 22 can be obtained. The second detection element 42 can directly detect the rotation angle of the output gear 22. In this way, the output angle of the output gear 22 can be determined. When the drive motor 1 rotates in the forward and reverse directions, the rotation angle of the output gear 22 is opposite, so that the electronic actuator 100 can drive the execution component to achieve forward and reverse motion.

[0055] Furthermore, the first detection element 41 and the second detection element 42 can be used in conjunction with the electronic control board 3. In this way, the first detection element 41 and the second detection element 42 can transmit signals with the electronic control board 3, and can provide timely feedback on the power transmitted from the drive motor 1 to the output gear 22, thereby ensuring the stability, reliability and safety of the movement of the electronic actuator 100.

[0056] Furthermore, the electronic actuator 100 is provided with a first detection element 41 and a second detection element 42, meaning that the first detection element 41 and the second detection element 42 can be used simultaneously, or only one of the first detection element 41 and the second detection element 42 can be used. This configuration can improve the detection function of the electronic actuator 100, and when one of the first detection element 41 and the second detection element 42 is damaged or fails, the other of the first detection element 41 and the second detection element 42 is used for detection, which improves the reliability and stability of the operation of the electronic actuator 100, and the two do not affect each other, thus improving the convenience of maintenance.

[0057] Therefore, this embodiment combines two detection methods, and the two detection methods can be redundant to each other. This not only improves the detection accuracy of the electronic actuator 100, but also allows the other to serve as a backup when one of them fails, thereby improving the convenience and user experience of using the electronic actuator 100.

[0058] According to the embodiment of the present utility model, the electronic actuator 100, by setting up the drive motor 1, the actuator 2, the electronic control board 3 and the detection structure 4, can make the actuator 2 run stably and reliably. The detection structure 4 includes a first detection element 41 and a second detection element 42, which can realize the rotation detection of the output gear 22 of the actuator 2 by the first detection element 41 and the second detection element 42 respectively. It can be compatible with the use requirements of different detection elements, has good use effect, and has a high degree of structural integration. It does not require the redevelopment of molds, reduces the setup cost and is conducive to cost control.

[0059] In some embodiments, the drive worm 21 includes a first embedded metal rod portion 211 and a first outer plastic layer 212. The first outer plastic layer 212 is integrally injection molded outside the first embedded metal rod portion 211. The first embedded metal rod portion 211 is connected to the motor shaft 11 of the drive motor. The first outer plastic layer 212 forms a worm external tooth portion 2121 that is in transmission cooperation with one of the gear sets 23.

[0060] Specifically, a first outer plastic layer 212 is provided to cover the first embedded metal rod portion 211, and the two are coaxially coupled. The internal structure of the drive worm 21 is metal, while the external structure is plastic, which improves the structural strength of the drive worm 21. Furthermore, the first embedded metal rod portion 211 is connected to the motor shaft 11 of the drive motor, thus achieving a power connection between the drive worm 21 and the motor shaft 11 of the drive motor. Figure 5 As shown, a worm gear external tooth portion 2121 is provided on the outer periphery of the first outer plastic layer 212 for meshing and transmission with the gear set 23. The worm gear external tooth portion 2121 can be constructed as a worm with a single helix or a double helix, and its configuration can be selected according to actual needs.

[0061] Furthermore, the first outer plastic layer 212 is integrally injection molded outside the first embedded metal rod 211. Integral injection molding allows for the manufacture of parts with complex shapes and structures, which is beneficial for the manufacturing of both the first outer plastic layer 212 and the first embedded metal rod 211, ensuring their integrity and manufacturing precision. It also improves the structural strength of both the first outer plastic layer 212 and the first embedded metal rod 211, making the connection between the drive worm 21 and the motor shaft 11 of the drive motor reliable and able to withstand larger loads, thereby improving the rotational accuracy and stability of the drive worm 21. In addition, the first embedded metal rod 211 provides additional strength and rigidity during the manufacturing process, improving manufacturing quality.

[0062] Furthermore, the one-piece 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 embedded metal rod 211, reduce manufacturing costs, and improve production efficiency and product quality.

[0063] Furthermore, after the drive motor 1 rotates, it can drive the first embedded metal rod 211 and the first outer plastic layer 212 to rotate simultaneously, and the worm gear external tooth 2121 of the first outer plastic layer 212 rotates and meshes with one of the gear sets 23 to realize the transmission of power from the drive worm 21 to the gear set 23.

[0064] Therefore, the drive worm 21 is generally made of metal or plastic. Metal drive worm 21 has high strength, but it is difficult to process and has high cost. Plastic drive worm 21 is generally made of nylon, which is inexpensive, but because the thermal expansion coefficients of nylon and metal motor shafts are different, axial and circumferential motion relative to the motor shaft is easily generated during rotation, which can cause product failure or angular inaccuracy. In this embodiment, by setting the drive worm 21 to be a combination of outer plastic material and inner metal material, and connecting the first embedded metal rod part 211 to the motor shaft 11 of the drive motor, the axial force and circumferential friction between the drive worm 21 and the motor shaft 11 of the drive motor can be guaranteed under different temperature loads. This can improve the stability and reliability of the drive force transmission, so as to ensure the use characteristics of the electronic actuator 100 and have a long service life.

[0065] In some embodiments, a magnetic sensing element 5 is mounted on the outside of the first outer plastic layer 212, and a first detection element 41 is mounted on the electronic control board 3. The first detection element 41 and the magnetic sensing element 5 are inductively coupled to perform rotation detection.

[0066] Specifically, the outer periphery of the first outer plastic layer 212 is provided with a worm gear external tooth portion 2121, and as shown... Figure 4 As shown, a magnetic sensing element 5 is mounted on at least a portion of the smooth surface at one end of the first outer plastic layer 212, thereby enabling the magnetic sensing element 5 to be integrally connected with the first outer plastic layer 212, and as... Figure 8 As shown, the first detection element 41 is detachably connected to the electronic control board 3, and the first detection element 41 is distributed opposite to the magnetic sensing element 5, so as to sense the changes in the magnetic sensing element 5.

[0067] Furthermore, when the drive motor 1 rotates, it drives the first outer plastic layer 212 to rotate, and the magnetic sensing element 5 rotates with the rotation of the first outer plastic layer 212. The first detection element 41 senses the change in the magnetic field of the magnetic sensing element 5, and the first detection element 41 will output different electrical signals. After the electronic control board 3 processes the signals, the number of rotations of the drive worm gear 21 and the drive motor 1 is obtained.

[0068] Therefore, by setting the magnetic sensing element 5 to be connected to the outside of the first outer plastic layer 212, and through the cooperation of the magnetic sensing element 5 and the first detection element 41, the number of rotations of the drive worm 21 and the drive motor 1 can be detected by magnetic field induction. The rotation detection method is simple, accurate and reliable.

[0069] In some embodiments, the magnetic sensing element 5 is constructed as a magnetic ring, which is sleeved on the first outer plastic layer 212 and circumferentially limited to cooperate with the first outer plastic layer 212, so that the connection between the magnetic ring and the first outer plastic layer 212 can be firm and reliable.

[0070] Specifically, such as Figure 4As shown, the first outer plastic layer 212 is used to mount a magnetic ring at one end of the motor shaft 11 away from the drive motor. At least part of one end of the first outer plastic layer 212 can be configured as a flat rectangular structure. The magnetic ring can be fitted onto the outside of the flat rectangular structure to fix the magnetic ring and limit its circumferential movement, preventing the magnetic ring from detaching from the first outer plastic layer 212. In this way, when the first outer plastic layer 212 rotates with the motor shaft 11 of the drive motor, the magnetic ring also rotates with the first outer plastic layer 212, and the movement between the two is reliable, which can improve the stability of the magnetic ring during long-term use.

[0071] The first detection element 41 is configured as a switch Hall sensor, and the magnetic ring is adapted to rotate relative to the switch Hall sensor with the drive worm 21.

[0072] Specifically, magnetic rings are used to enhance or guide magnetic fields. A switch Hall sensor is a magnetic sensitive element based on the Hall effect. When a magnetic ring is used in conjunction with a switch Hall sensor, the magnetic ring has a certain volume and magnetism, which can ensure that the Hall sensor can obtain effective magnetic field sensing.

[0073] Typically, the Hall sensor is a fixed terminal. When the magnetic ring rotates synchronously with the first outer plastic layer 212, the magnetic field generated by the magnetic ring changes accordingly, thereby triggering the switching action of the Hall sensor. The rotation of the magnetic ring induces the alternating changes in the N and S poles, and the changing magnetic field acts on the Hall sensor, causing it to generate a Hall voltage, thus outputting a high or low level. The magnetic ring has one or more pairs of poles. The number of rotations of the drive motor 1 is calculated by the number of high / low pulse switching cycles and the number of magnetic pole pairs. The rotation angle of the output gear 22 can be calculated using the reduction ratio of the multi-gear set 23.

[0074] Therefore, by setting up the combination of the switch Hall sensor and the magnetic ring, the number of rotations of the drive motor 1 detected is accurate and reliable, and the effect is good.

[0075] In some embodiments, the end of the first embedded metal rod portion 211 is formed with a transmission connection groove 2111 that is open in the axial direction. At least a portion of the motor shaft 11 of the drive motor extends into the transmission connection groove 2111 and is interference-fitted with the inner wall of the transmission connection groove 2111. The motor shaft 11 of the drive motor is in circumferential transmission engagement with the first embedded metal rod portion 211.

[0076] Specifically, such as Figure 4 and Figure 5As shown, the first embedded metal rod 211 has a transmission connection groove 2111 formed at one end near the motor shaft 11 of the drive motor. The transmission connection groove 2111 is located at the center of the first embedded metal rod 211, and the transmission connection groove 2111 can be constructed as a circular groove. The circular groove extends along the axial direction of the first embedded metal rod 211 and opens toward the motor shaft 11 of the drive motor. This facilitates the cooperation between the motor shaft 11 of the drive motor and the transmission connection groove 2111.

[0077] Furthermore, the motor shaft 11 of the drive motor is interference-fitted with the inner wall of the transmission connection groove 2111. In this way, the motor shaft 11 of the drive motor can be press-fitted onto the outside of the motor shaft 11 of the drive motor through the transmission connection groove 2111 and the first embedded metal rod 211, thereby improving the connection between the two to be more stable and reliable, and thus improving the rotational accuracy of the motor shaft driving the drive worm 21.

[0078] Specifically, the transmission connection groove 2111 is a circular groove, and its inner diameter can be set to be the same as that of the motor shaft 11 of the drive motor. The inner diameter of the transmission connection groove 2111 is smaller than the outer diameter of the motor shaft 11 of the drive motor, which is conducive to achieving an interference fit between the two.

[0079] During installation, at least a portion of the motor shaft 11 of the drive motor is extended through the first outer plastic layer 212 into the transmission connection groove 2111, which enables the axial connection between the motor shaft 11 of the drive motor and the first embedded metal rod 211. The long axial connection length between the two can improve the connection strength and thus improve the reliability of rotation.

[0080] And such as Figure 5 As 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 larger than the outer diameter of the second rod portion, and the first rod portion is embedded in the worm gear external tooth portion 2121. The transmission connecting groove 2111 is provided in the first rod portion, and the axial groove depth of the transmission connecting groove 2111 is smaller than the axial length of the first rod portion, so as to ensure the structural strength of the first embedded metal rod portion 211. 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 and reduce the friction and impact on the first outer plastic layer 212.

[0081] 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 covers the second embedded metal rod portion 221. The second embedded metal rod portion 221 forms a power output portion 2212, and the second outer plastic layer 222 forms an output external tooth portion 2221 that is in transmission cooperation with one of the gear sets 23.

[0082] Specifically, a second outer plastic layer 222 is provided to cover the second embedded metal rod portion 221, and the two are coaxially coupled. The output gear 22 has an internal metal structure and an external plastic structure, which improves the structural strength of the output gear 22. The second embedded metal rod portion 221 forms a power output portion 2212. If the power output portion 2212 is connected to an external actuator, the output gear 22 can be powered to the external actuator. Figure 6 As shown, an output external tooth 2221 is provided on the outer periphery of the second outer plastic layer 222 for meshing and transmission with the gear set 23.

[0083] Furthermore, the driving force of the drive motor 1 is sequentially transmitted to the drive worm 21, multiple gear sets 23, output gear 22 and external actuator. After the driving force is transmitted to the multiple gear sets 23, the gear sets 23 mesh with the output external teeth 2221 of the second outer plastic layer 222, and at the same time drive the second embedded metal rod 221 to drive, thereby driving the external actuator to move.

[0084] Therefore, the output gear 22 is generally made of plastic or metal. Plastic is cheaper, but the shaft strength of the output gear 22 made of plastic is low. When subjected to external factors such as vibration and impact, it may cause product failure or angle inaccuracy. In this embodiment, by setting the output gear 22 to be a combination of outer plastic material and inner metal material, the stability and reliability of driving force transmission can be improved to ensure the performance characteristics of the electronic actuator 100 and to extend its service life.

[0085] In some embodiments, the power output section 2212 is disposed at one end of the second embedded metal rod section 221, and the other end of the second embedded metal rod section 221 is provided with a mounting section 2211. The second detection element 42 is mounted on the mounting section 2211 and is electrically connected to the electronic control board 3.

[0086] Specifically, such as Figure 6 As shown, one end of the second embedded metal rod 221 is designated as a power output section 2212, used for power output from the output gear 22. The power output section 2212 can be connected to an external actuator via a connector, allowing the power transmitted to the output gear 22 to be output as shown. Figure 6 As shown, a second detection element 42 is mounted on the other end of the second embedded metal rod portion 221 via a mounting portion 2211. This allows the second detection element 42 to be connected to the second embedded metal rod portion 221 as a single unit, enabling synchronous movement of both. Figure 7 As shown, the second detection element 42 is connected to the electronic control board 3, which enables signal transmission between the two.

[0087] Furthermore, when the gear set 23 meshes with the output gear 22, the second embedded metal rod 221 rotates, which can realize the outward transmission of driving force. The second detection element 42 rotates with the rotation of the second embedded metal rod 221. The second detection element 42 can output the rotation angle of the output gear 22 and transmit the signal to the electronic control board 3, thereby realizing the rotation detection of the output gear 22.

[0088] Therefore, by setting one end of the second embedded metal rod 221 as the power output part 2212 and the other end connected to the second detection element 42, power output can be realized, and the number of rotations of the output gear 22 can be directly detected in the mounting part 2211. The two do not affect each other, and the two structures are integrated, making the structure more compact, and the detection method is simple and reliable.

[0089] It should be noted that the connecting parts can be splines or the like, which can connect the output gear 22 to the external actuator via splines, thereby improving the reliability and robustness of the connection and thus improving the accuracy of the power output.

[0090] In some embodiments, the mounting portion 2211 is constructed as a semi-cylindrical shape, and the second detection element 42 is constructed as a potentiometer. The potentiometer is sleeved outside the mounting portion 2211 and is circumferentially driven in cooperation with the mounting portion 2211, so that the connection between the potentiometer and the mounting portion 2211 can be firm and reliable.

[0091] Specifically, the mounting part 2211 is set to be semi-cylindrical, and the second detection element 42 is a potentiometer. The potentiometer is also semi-cylindrical inside. The potentiometer can be sleeved on the outside of the mounting part 2211 to fix the second detection element 42 and limit the circumferential movement of the second detection element 42 to prevent it from detaching from the mounting part 2211. In this way, after the second embedded metal rod part 221 rotates, it can drive the second detection element 42 to rotate synchronously. The second detection element 42 can directly output the rotation angle of the output gear 22.

[0092] Among them, such as Figure 6 As shown, the semi-cylindrical shape is the D-type shaft. The mounting part 2211 and the potentiometer can be set with an interference fit. This can improve the connection strength between the two and ensure the accuracy of the angle output. In addition, the mounting part 2211 is made of metal, which can avoid the failure of the mounting part 2211 due to manufacturing and assembly errors, as well as external loads such as vibration and impact, thereby improving product quality and motion stability.

[0093] In some embodiments, the electronic actuator 100 further includes a housing 6, in which the drive motor 1, the actuator 2, and the electronic control board 3 are all installed.

[0094] Specifically, the housing 6 serves as a protective layer for the electronic actuator 100, and also supports and connects the various components. For example... Figures 1-3 As shown, a mounting cavity 67 is formed inside the housing 6 to accommodate and protect key components such as the drive motor 1, the actuator 2, and the electronic control board 3. Each component is detachably connected inside the housing 6. The electronic actuator 100 includes a cover plate 66, which is detachably connected to the housing 6. The cover plate 66 can enclose the drive motor 1, the actuator 2, and the electronic control board 3 inside the mounting cavity 67, making the external structure of the electronic actuator 100 flat and facilitating the handling and transfer of the entire structure.

[0095] Furthermore, such as Figure 4 As shown, at least a portion of the drive worm 21 is sleeved outside the motor shaft 11 of the drive motor, and the drive worm 21 and the drive motor 1 are axially opposite each other. This allows the drive worm 21 and the motor shaft 11 of the drive motor to be coaxially distributed, making the force between them more uniform. Furthermore, the fact that at least a portion of the drive worm 21 is sleeved outside the motor shaft 11 of the drive motor increases the axial connection area between the two, improving the reliability of their connection and making the transmission between the drive motor 1 and the drive worm 21 stable and reliable.

[0096] The housing 6 is provided with a first electrical connector 64, which is integrally injection molded with the housing 6. The two ends of the first electrical connector 64 are respectively constructed as a motor connection part 641 and a first electrical connection part 642. The motor connection part 641 is plugged into and connected to the drive motor 1, and the first electrical connection part 642 is plugged into and connected to the electronic control board 3.

[0097] Specifically, such as Figure 3 As shown, the first electrical connector 64 is located inside the housing 6. At least a portion of the structure of the first electrical connector 64 can be integrally injection molded with the housing 6 to achieve the connection and fixation of the first electrical connector 64. The first electrical connector 64 is used to realize the electrical connection between the drive motor 1 and the electronic control board 3.

[0098] like Figure 9 As shown, the first electrical connector 64 includes two parts. The two ends of the two first electrical connectors 64 are respectively configured as a motor connection part 641 and a first electrical connection part 642, and the two ends of the two first electrical connectors 64 are respectively a positive connection part and a negative connection part of the motor. The control board 3 is located between the cover plate 66 and the housing 6. The control board 3 is provided with a first plug-in interface 31. The positive electrode of the motor is plugged into the positive connection part of the motor, and the negative electrode of the motor is plugged into the negative connection part of the motor, so as to realize the electrical connection between the drive motor 1 and the first electrical connector 64. Then, the two first electrical connection parts 642 are plugged into the first plug-in interface 31 of the control board 3 to realize the electrical connection between the drive motor 1 and the control board 3.

[0099] Furthermore, after the electronic actuator 100 is working, the electronic control board 3 can control the start and stop of the drive motor 1 through the first electrical connector 64, and can control the forward and reverse rotation of the drive motor 1. The electronic control board 3 can also adjust the voltage and current at the two first electrical connectors 64, and can control the speed, torque and other parameters of the drive motor 1 so that the drive motor 1 can run stably.

[0100] Therefore, the first electrical connector 64 enables the electrical connection between the drive motor 1 and the control board 3. This configuration, by replacing the traditional wiring connection with the first electrical connector 64, simplifies the overall wiring installation and makes the connection simpler and more convenient, reducing the cost of wiring. Furthermore, by molding at least a portion of the structure of the first electrical connector 64 integrally with the housing 6, the connection between the two can be made reliable and stable, thereby improving the working stability of the drive motor 1. It also reduces the number of steps in connecting the first electrical connector 64 to the housing 6, reducing assembly time and improving production efficiency and product quality. Moreover, it is easy to disassemble and maintain.

[0101] Among them, the first electrical connection part 642 of the first electrical connector 64 is constructed as a fisheye pin, which is pressed into the electronic control board 3, and the motor connection part 641 is constructed as a pin structure, which is pressed into the positive and negative electrodes of the drive motor 1, making the connection simpler and more reliable.

[0102] In some embodiments, the housing 6 is further provided with a second electrical connector 63, which is integrally injection molded with the housing 6. One end of the second electrical connector 63 is located inside the housing 6 and forms a second electrical connection portion 631, while the other end of the second electrical connector 63 is located outside the housing 6 and forms a third electrical connection portion 632. The second electrical connection portion 631 is plugged into and connected to the electronic control board 3, and the third electrical connection portion 632 is used to plug into and connect to the main controller located outside the housing 6.

[0103] Specifically, such as Figure 3 and Figure 10 As shown, the second electrical connector 63 penetrates the housing 6. At least a portion of the structure of the second electrical connector 63 can be integrally injection molded with the housing 6, enabling the connection and fixation of the second electrical connector 63. For example... Figure 11 As shown, the two ends of the second electrical connector 63 are the second electrical connection part 631 and the third electrical connection part 632, respectively. The control board 3 is provided with a second plug-in interface 32. The second electrical connector 63 passes through the housing 6, so that the second electrical connection part 631 is located inside the housing 6 and plugged into the second plug-in interface 32 of the control board 3, and the third electrical connection part 632 is located outside the housing 6 and plugged into the main controller, thus realizing the electrical connection between the control board 3 and the main controller.

[0104] Furthermore, the main controller controls the operation of the electronic control board 3 through the second electrical connector 63. After the electronic actuator 100 is working, the main controller sends a command to the electronic control board 3 to control the operation of the drive motor 2, the first detection element 41 and the second detection element 42 so that the output gear 22 can output the set angle. The electronic control board 3 also sends a command to the main controller.

[0105] Therefore, the electrical connection between the control board 3 and the main controller can be realized through the second electrical connector 63. This configuration replaces the traditional wiring connection with the second electrical connector 63, which simplifies the overall wiring installation and makes the connection simpler and more convenient, reducing the cost of wiring. Furthermore, by making at least part of the structure of the second electrical connector 63 integrally injection molded with the housing 6, the connection between the two can be reliable and stable, thereby improving the working stability of the drive motor 1. It can also reduce the connection steps between the second electrical connector 63 and the housing 6, reduce assembly time, improve production efficiency and product quality, and facilitate disassembly and maintenance.

[0106] The second electrical connector 63 can be configured as multiple, and there can be two, three, four, five, etc. The second electrical connection part 631 of the second electrical connector 63 is constructed as a fisheye pin, which is pressed into the electronic control board 3, and the third electrical connection part 632 is constructed as a pin structure, which is pressed into the main controller, making the connection simpler and more reliable.

[0107] In some embodiments, the housing 6 is provided with a first limiting member 61 and / or a second limiting member 62, the first limiting member 61 being limited to the end of the drive worm gear 21 away from the drive motor 1, and the second limiting member 62 being limited to the end of the drive motor 1 away from the drive worm gear 21.

[0108] Specifically, such as Figure 3 and Figure 4 As shown, the first limiting member 61 and the second limiting member 62 are respectively distributed relative to each other along the axial direction of the motor shaft 11 of the drive motor. The first limiting member 61 is located at the end of the drive worm 21 away from the drive motor 1, and the second limiting member 62 is located at the end of the drive motor 1 away from the drive worm 21. This makes the distance between the first limiting member 61 and the second limiting member 62 greater than the total axial length of the drive motor 1 and the drive worm 21. In this way, the axial displacement of the drive motor 1 can be limited, and the drive motor 1 can be protected.

[0109] Furthermore, the distance between the first limiting member 61 and the second limiting member 62 is greater than the axial clearance of the drive motor 1. During the operation of the drive motor 1, it will be subjected to the axial reaction force brought by the drive worm 21. The drive motor 1 runs stably under the action of the axial limiting shim inside it. However, when the load is large, the axial limiting shim inside the drive motor 1 is easily damaged, and its limiting function fails. The first limiting member 61 and the second limiting member 62 can limit and press the drive motor 1, thereby protecting the drive motor 1.

[0110] Therefore, by setting the first limiting member 61 and the second limiting member 62, the redundant design can be achieved. The first limiting member 61 and the second limiting member 62 make the operation of the drive motor 1 more reliable and safe, and avoid problems such as abnormal noise and jamming of the drive motor 1, thereby improving the service life of the drive motor 1 and ensuring the stability and continuity of the operation of the electronic actuator 100.

[0111] Specifically, the first limiting member 61 and the second limiting member 62 can be constructed as gaskets to increase the contact area with the motor shaft 11. Furthermore, the first limiting member 61 and the second limiting member 62 can be integrally injection molded with the housing 6, which improves the connection strength and manufacturing precision between the first limiting member 61 and the housing 6, thereby enhancing the reliability of the pressure resistance against the drive motor 1. Additionally, the first limiting member 61 and the second limiting member 62 can also be integrally connected to the inner wall of the housing 6 via an adhesive, and can be detachably connected to the housing 6 via bolts or other connecting components, resulting in a simple, secure, and reliable connection.

[0112] In some embodiments, the first limiting member 61 and / or the second limiting member 62 are made of plastic or metal materials. That is, the materials of the first limiting member 61 and the second limiting member 62 can be the same or different, and one of them can be made of plastic and the other of metal, or both can be made of plastic or metal. The setting methods are diverse and can be flexibly selected.

[0113] The plastic material can be Teflon. Both this material and the metal material have high wear resistance when used with the motor shaft 11 of the drive motor. They can effectively limit the movement between the first limiting member 61 and the second limiting member 62 and the motor shaft 11 of the drive motor, thereby effectively protecting the drive motor 1. The first limiting member 61 and the second limiting member 62 are not easy to wear and have a long service life.

[0114] It should be noted that gear set 23 consists of three gears, corresponding to, as follows: Figure 3As shown, the housing 6 contains three gear shafts 68, which are spaced apart and extend along the opening direction of the housing 6. Thus, three gear sets 23 are fitted around the three gear shafts 68, enabling the connection of the three gear sets 23. Figure 1 As shown, the three gear sets 23, along the power transmission direction, can be sequentially configured as a first gear 231, a second gear 232, and a third gear 233. The first gear 231 meshes with the drive worm 21, and the third gear 233 meshes with the output gear 22. Thus, the power at the drive worm 21 is transmitted sequentially through the meshing of the first gear 231, the second gear 232, and the third gear 233. The third gear 233 meshes with the output gear 22, thus outputting the power. The first gear 231, the second gear 232, and the third gear 233 can all be configured as gears of different sizes (upper and lower), facilitating the meshing of the three gear sets 23 and enabling multi-stage reduction ratios to achieve the required power output.

[0115] Furthermore, the power output part 2212 of the output gear 22 is connected to the housing 6 through the sealing ring 7, which can achieve a seal between the two, thereby ensuring the reliability of the installation of the output gear 22 and the housing 6. The end of the second embedded metal rod part 221 is inserted into the connection hole of the cover plate 66 to fix the second embedded metal rod part 221, so that the output gear 22 can rotate stably and improve the accuracy of motion and torque output.

[0116] This utility model also proposes an electrical device.

[0117] The electrical device according to the embodiments of this utility model includes an electronic actuator 100 of any of the above embodiments. The electrical device can be a household curtain, door or window, etc. The actuator 2 of the electronic actuator 100 is connected to the actuator component of the electrical device to realize the opening or closing function of the electrical device. The electronic actuator 100 can drive the electrical device to perform linear or rotary motion, which can increase the application range of the electronic actuator 100, improve the driving effect, and make it more convenient to use, thus facilitating the development of the electronic actuator 100 in the field of automation.

[0118] Furthermore, the electronic actuator 100, through the coordinated use of the drive motor 1, the actuator 2, the electronic control board 3, and the detection structure 4, enables the actuator 2 to operate stably and reliably. The detection structure 4 includes a first detection element 41 and a second detection element 42, which can respectively detect the rotation of the output gear 22 of the actuator 2. It can be compatible with the use requirements of different types of detection elements, has good performance, and has a high degree of structural integration. It does not require the redevelopment of molds, reduces the setup cost, and is conducive to cost control.

[0119] This utility model also proposes a vehicle.

[0120] The vehicle according to the present utility model includes the electronic actuator 100 of any of the above embodiments. The actuator 2 of the electronic actuator 100 can be connected to the vehicle's charging port cover and fuel filler cap, etc., to realize the opening or closing function of the charging port cover or fuel filler cap, etc. The electronic actuator 100 can drive the external actuator to perform linear or rotary motion, which increases the application range of the electronic actuator 100, improves the driving effect, and makes it more convenient to use, thus facilitating the development of the electronic actuator 100 in the field of vehicle automation.

[0121] Furthermore, the electronic actuator 100, through the coordinated use of the drive motor 1, the actuator 2, the electronic control board 3, and the detection structure 4, enables the actuator 2 to operate stably and reliably. The detection structure 4 includes a first detection element 41 and a second detection element 42, which can respectively detect the rotation of the output gear 22 of the actuator 2. It can be compatible with the use requirements of different types of detection elements, has good performance, and has a high degree of structural integration. It does not require the redevelopment of molds, reduces the setup cost, and is conducive to cost control.

[0122] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0123] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electronic actuator, characterized in that, include: Drive motor; An actuator, comprising a drive worm, an output gear, and multiple gear sets, wherein the drive worm is connected to the motor shaft of the drive motor, and the multiple gear sets are sequentially and power-connected between the drive worm and the output gear; An electronic control board, which is electrically connected to the drive motor; The detection structure includes a first detection element and a second detection element. The first detection element is adapted to be installed on the electronic control board or the drive worm gear for detecting the rotation of the drive worm gear. The second detection element is adapted to be installed on the electronic control board or the output gear for detecting the angle of the output gear.

2. The electronic actuator according to claim 1, characterized in that, The drive worm includes a first embedded metal rod portion and a first outer plastic layer. The first outer plastic layer is integrally injection molded outside the first embedded metal rod portion. The first embedded metal rod portion is connected to the motor shaft of the drive motor. The first outer plastic layer forms an external tooth portion of the worm that is in transmission engagement with one of the gear sets.

3. The electronic actuator according to claim 2, characterized in that, A magnetic sensing element is installed on the outside of the first outer plastic layer, and the first detection element is installed on the electronic control board. The first detection element and the magnetic sensing element cooperate to perform rotation detection.

4. The electronic actuator according to claim 3, characterized in that, The magnetic sensing element is constructed as a magnetic ring, which is sleeved on the first outer plastic layer and circumferentially limited to the first outer plastic layer; The first detection element is configured as a switch Hall sensor, and the magnetic ring is adapted to rotate relative to the switch Hall sensor with the drive worm gear.

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

6. The electronic actuator according to claim 1, characterized in that, The output gear includes a second embedded metal rod portion and a second outer plastic layer. The second outer plastic layer covers the second embedded metal rod portion. The second embedded metal rod portion forms a power output portion, and the second outer plastic layer forms an output external tooth portion that drives and engages with one of the gear sets.

7. The electronic actuator according to claim 6, 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. The second detection element is mounted on the mounting section, and the second detection element is electrically connected to the electronic control board.

8. The electronic actuator according to claim 7, characterized in that, The mounting part is semi-cylindrical in shape, and the second detection element is a potentiometer. The potentiometer is sleeved outside the mounting part and is in circumferential transmission cooperation with the mounting part.

9. The electronic actuator according to any one of claims 1-8, characterized in that, Also includes: The housing, the drive motor, the actuator and the electronic control board are all installed inside the housing, at least a portion of the drive worm is sleeved outside the motor shaft of the drive motor, and the drive worm and the drive motor are axially opposite each other; 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 housing is provided with a first limiting member and / or a second limiting member, wherein the first limiting member is limited to the end of the drive worm gear away from the drive motor, and the second limiting member is limited to the end of the drive motor away from the drive worm gear; 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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