CN111406359A

CN111406359A - Steering engine and electric equipment

Info

Publication number: CN111406359A
Application number: CN201880072569.5A
Authority: CN
Inventors: 罗冲; 聂金安; 马举猛
Original assignee: SZ DJI Technology Co Ltd
Current assignee: SZ DJI Technology Co Ltd
Priority date: 2018-11-29
Filing date: 2018-11-29
Publication date: 2020-07-10
Also published as: WO2020107344A1

Abstract

The utility model provides a steering wheel (10), including motor (11) and protection circuit (12), protection circuit (12) are including drive module (122) and protection module (124), drive module (122) and motor (11) are connected in protection module (124), drive module (122) are including first output (a) and second output (b), protection module (124) are including high frequency filter unit (1242), differential mode filter unit (1244) and common mode filter unit (1246), first output (a) and second output (b) are connected in high frequency filter unit (1242), high frequency filter unit (1242) and motor (11) are connected in differential mode filter unit (1244), differential mode filter unit (1244) is connected in common mode filter unit (1246), high frequency filter unit (1242) and motor (11). An electric device (100) comprises a load (20) and the steering engine (10), wherein the steering engine (10) is connected with the load (20).

Description

Steering engine and electric equipment

Technical Field

The application relates to the technical field of motor drive control, in particular to a steering engine and electric equipment.

Background

Steering engines are currently widely used in drive devices. The power of the steering engine is derived from a driving motor, the driving motor drives a transmission assembly when working, and the transmission assembly outputs the power of the driving motor. The existing steering engine generally adopts a metal shell, and the metal shell can enable the steering engine to have better EMC (electromagnetic compatibility) characteristics. However, the metal casing also makes the steering engine have a heavy weight as a whole, and the application range of the steering engine is limited, for example, when the steering engine is applied to heavy-weight sensitive electric equipment, the weight reduction needs to be considered from all aspects.

Disclosure of Invention

The embodiment of the application provides a steering engine and electric equipment.

The embodiment of the application provides a steering engine, which comprises a motor and a protection circuit, wherein the protection circuit comprises a driving module and a protection module, the protection module is connected with the driving module and the motor, the driving module comprises a first output end and a second output end, the protection module comprises a high-frequency filtering unit, a differential mode filtering unit and a common mode filtering unit, the high-frequency filtering unit is connected with the first output end and the second output end, the differential mode filtering unit is connected with the high-frequency filtering unit and the motor, and the common mode filtering unit is connected with the differential mode filtering unit and the high-frequency filtering unit and the motor.

The embodiment of the application provides an electric equipment, and it includes load and the steering wheel of this application embodiment, the steering wheel is connected the load.

In the steering wheel and the consumer of this application embodiment, the steering wheel has protection module, even do not use metal casing, also can make the steering wheel have good EMC performance, can make the application of steering wheel wider like this, is particularly suitable for being applied to in the consumer sensitive to weight.

Additional aspects and advantages of embodiments of the present application 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 embodiments of the present application.

Drawings

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

fig. 1 is a block diagram of a consumer according to an embodiment of the present disclosure.

Fig. 2 is a control block diagram of a steering engine according to the embodiment of the present application.

Fig. 3 is a block diagram of a steering engine according to an embodiment of the present invention.

Fig. 4 is a circuit diagram of a guard circuit according to an embodiment of the present application.

Fig. 5 is a perspective view of a steering engine according to an embodiment of the present application.

Fig. 6 is a schematic plan view of a steering engine according to an embodiment of the present application.

Figure 7 is a schematic cross-sectional view of the steering engine of figure 6 taken along direction VII-VII.

Fig. 8 is an exploded schematic view of a steering engine according to an embodiment of the present application.

Description of the main elements of the drawings:

the electric equipment 100, the steering engine 10, the motor 11, the motor housing 112, the upper end 1122, the lower end 1124, the first convex part 1126, the second convex part 1128, the motor shaft 114, the helical gear 1142, the protection circuit 12, the driving module 122, the protection module 124, the high-frequency filter unit 1242, the differential-mode filter unit 1244, the common-mode filter unit 1246, the first unit 1246A, the second unit 1246B, the housing 13, the upper housing 131, the middle housing 132, the lower housing 133, the accommodating space 134, the screw 135, the mounting shaft 136, the mounting bearing 1362, the circuit board 14, the vibration damper 15, the transmission assembly 16, the output shaft 17, the first end 172, the fixing sleeve 1722, the second end 174, the disk 1742, the locking screw 1744, the controller 18, the position detection assembly 19, the magnetic member 192, the detection member 194, the load 20, the first output end a, the second output end B, the first L1, the second magnetic bead L2, the filter capacitor C0, the first connection point C, and the second.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present application, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1, an electric device 100 according to an embodiment of the present disclosure includes a steering engine 10 and a load 20, where the steering engine 10 is connected to the load 20. The steering engine 10 may be configured to drive the load 20 or one or more components of the load 20 to rotate.

In certain embodiments, powered device 100 includes, but is not limited to, a drone, an unmanned boat, a robot, and the like. Further, the load 20 may be a different functional component for different consumers 100. For example, in a drone, the load 20 may be a power component of the drone, and the steering engine 10 may be used to control the power component to move relative to the body of the drone to change the yaw, pitch, roll, etc. attitude of the drone; certainly, the load 20 may also be another steering device carried by the unmanned aerial vehicle, and the steering engine 10 may be used to drive the steering device to steer; steering engine 10 may also be used to control the movement of a robotic arm.

Referring to fig. 2 to 4 together, a steering engine 10 according to an embodiment of the present disclosure includes a motor 11 and a protection circuit 12. The protection circuit 12 includes a driving module 122 and a protection module 124, the protection module 124 connects the driving module 122 and the motor 11, and the driving module 122 includes a first output end a and a second output end b. The protection module 124 includes a high-frequency filter unit 1242, a differential-mode filter unit 1244 and a common-mode filter unit 1246, the high-frequency filter unit 1242 is connected to the first output terminal a and the second output terminal b, the differential-mode filter unit 1244 is connected to the high-frequency filter unit 1242 and the motor 11, and the common-mode filter unit 1246 is connected to the differential-mode filter unit 1244, the high-frequency filter unit 1242 and the motor 11.

Among above-mentioned steering wheel 10 and consumer 100, steering wheel 10 has protection module 124, even do not use metal casing, also can make steering wheel 10 have good EMC performance, can make steering wheel 10 use more extensively like this, is particularly suitable for being applied to in the consumer 100 sensitive to weight, for example, for unmanned aerial vehicle and sports robot, because the battery capacity that unmanned aerial vehicle and sports robot carried is limited, the weight loss of unmanned aerial vehicle and robot seems especially important.

In some embodiments, the driving power V of the motor 11 may be a dc power, and the driving module 122 may be an H-bridge circuit, where the H-bridge circuit is composed of 4 switching tubes (M1, M3, M2, M4), and controlling the switching tubes to be turned on or off at a certain frequency may be used to control the current passing through the H-bridge circuit, so as to drive and control the turning and speed regulation of the motor 11. In one example, the drive module 122 may convert the dc power to ac power of variable frequency, and as such, may be used to drive the operation of the motor 11.

Specifically, in some embodiments, the switching tube may be a power transistor (GTR), a power field effect transistor (MOSFET), an insulated gate transistor (IGBT), or the like.

In some embodiments, the high frequency filter unit 1242 includes a first bead L1 and a second bead L2, the first bead L1 is connected to the first output terminal a and the differential mode filter unit 1244, and the second bead L2 is connected to the second output terminal b and the differential mode filter unit 1244.

It is understood that the beads may be used to filter the driving signal, suppress high frequency noise and spike interference in the driving signal, and absorb the electrostatic pulse, the first bead L1 and the second bead L2 may form a bi-directional filter in the circuit, increasing the performance of the protection circuit 12.

In some embodiments, the differential mode filter unit 1244 includes a filter capacitor C0, and the filter capacitor C0 connects the high frequency filter unit 1242 and the motor 11. Specifically, the filter capacitor C0 is connected in parallel with the motor 11, and differential mode noise in the circuit can pass through the filter capacitor C0, so that the influence of the differential mode noise on the motor 11 is reduced, and the driving stability of the motor 11 is ensured.

Further, in some embodiments, the common mode filter unit 1246 includes a first unit 1246A and a second unit 1246B, the differential mode filter unit 1244 and the high frequency filter unit 1242 are connected to form a first connection point c and a second connection point d, the first unit 1246A connects the first connection point c to the motor 11, and the second unit 1246B connects the second connection point d to the motor 11.

Specifically, when the two ends of the motor 11 are connected to the first connection point c and the second connection point d, respectively, and the first unit 1246A is connected to the first connection point c and the second unit 1246B is connected to the second connection point d, the first unit 1246A and the second unit 1246B are connected to the two ends of the motor 11, respectively, that is, the common mode noise at the two ends of the motor 11 may pass through the first unit 1246A and the second unit 1246B, respectively, so as to reduce the influence of the common mode noise on the motor 11.

In some embodiments, the first unit 1246A includes an RC filter circuit and/or the second unit 1246B includes an RC filter circuit. The RC filter circuit is formed by connecting a resistor (R1, R2) and a capacitor (C1, C2) in series, one end of the RC filter circuit of the first unit 1246A is connected to the first connection point C, and the other end is grounded; the RC filter circuit of the second unit 1246B has one end connected to the second connection point d and the other end grounded.

It should be noted that, in the protection circuit 12 according to the embodiment of the present invention, good EMC performance can be achieved by a simpler circuit design and at a lower cost. The size and performance of each electronic component (magnetic bead, resistor, capacitor, etc.) can be flexibly configured according to needs, and are not specifically limited herein.

In certain embodiments, the motor 11 includes, but is not limited to, a brushed motor 11, a brushless motor 11, or a coreless motor 11.

In one example, the motor 11 may be a brushed motor 11. The brush motor 11 has the characteristics of quick start, timely braking, smooth speed regulation and the like, and is favorable for controlling the motor 11 to drive the load 20 to rotate by an angle. The protection circuit 12 can be used for inhibiting EMC radiation generated by commutation sparks of the brush motor 11, and EMC performance of the steering engine 10 is improved.

Referring to fig. 5 to 8, in some embodiments, the steering engine 10 includes a housing 13, the housing 13 includes an upper housing 131, a middle housing 132, and a lower housing 133, the upper housing 131 and the lower housing 133 are installed on opposite sides of the middle housing 132, and the upper housing 131, the middle housing 132, and the lower housing 133 enclose an accommodation space 134. Wherein the motor 11 is mounted on the middle case 132 and the lower case 133. As such, the upper, middle and

lower cases

131, 132 and 133 may be used to mount and protect the motor 11.

In the illustrated embodiment, the upper and

lower cases

131 and 133 are mounted to the middle case 132 by means of a screw 135 connection. Of course, in other embodiments, the upper shell 131 and the lower shell 133 may also be mounted to the middle shell 132 by a snap-fit connection, an interference fit connection, or other connection.

Specifically, in one example, the housing 13 may be made of plastic, which is easy to manufacture, and is beneficial to reducing the cost of the steering engine, and the weight of the steering engine may be effectively reduced, so as to meet the load requirement of the electric device 100.

In some embodiments, the steering engine 10 includes a circuit board 14, and the protection circuit 12 is disposed on the circuit board 14. Specifically, the circuit board 14 is mounted in the middle case 132 and located in the receiving space 134. The circuit board 14 facilitates the disposition of the protection circuit 12, and the upper case 131, the middle case 132, and the lower case 133 cooperate to protect the protection circuit 12.

In some embodiments, the steering engine 10 includes a vibration damping member 15, the vibration damping member 15 is located in the housing 13, the motor 11 includes a motor housing 112, and the vibration damping member 15 is disposed between the motor housing 112 and the housing 13.

So, damper 15 can reduce the vibrations of motor 11 during operation, guarantees motor 11 job stabilization nature, reduces the noise that motor 11 produced, is favorable to improving user experience.

In some embodiments, the motor housing 112 includes an upper end 1122 and a lower end 1124, the motor 11 includes a motor shaft 114, the motor shaft 114 extends out from the upper end 1122, a vibration damping member 15 is disposed between the upper end 1122 and the housing 13, and a vibration damping member 15 is disposed between the lower end 1124 and the housing 13. That is, the damper 15 is mounted on the end surface of the motor case 112. Specifically, a cushion 15 is provided between the upper end 1122 and the middle shell 132, and a cushion 15 is provided between the lower end 1124 and the lower shell 133.

In some embodiments, upper end 1122 is provided with a first protrusion 1126, lower end 1124 is provided with a second protrusion 1128, and vibration dampening members 15 located at upper end 1122 are positioned around first protrusion 1126 and vibration dampening members 15 located at lower end 1124 are positioned around second protrusion 1128.

Specifically, the cushion 15 may have a ring shape and is mounted on the upper end 1122 and the lower end 1124 of the motor 11, respectively, and the first convex portion 1126 and the second convex portion 1128 facilitate the mounting of the motor 11. In other embodiments, the shock absorbing pads 15 may also be curved or otherwise shaped, the number of shock absorbing pads 15 may be multiple, with multiple shock absorbing pads 15 located at the upper end 1122 disposed around the first protrusion 1126 and multiple shock absorbing pads 15 located at the lower end 1124 disposed around the second protrusion 1128.

Further, in some embodiments, a shock absorbing pad 15 may be disposed between the side wall of the motor 11 and the housing 13 along the circumferential direction of the motor 11, so as to further increase the shock absorbing effect of the motor 11.

Specifically, the cushion 15 includes, but is not limited to, rubber, foam or sponge, and the like.

In some embodiments, the steering engine 10 includes a transmission assembly 16 and an output shaft 17, the motor shaft 114 is provided with a bevel gear 1142, the transmission assembly 16 connects the bevel gear 1142 with the output shaft 17, and the motor 11 is used for driving the output shaft 17 to rotate through the bevel gear 1142 and the transmission assembly 16.

Therefore, the helical gear 1142 is connected with the transmission assembly 16 in a compact structure, so that the upward and downward movement of the motor shaft 114 can be reduced, the noise generated by transmission can be reduced, and the transmission stability and the transmission efficiency of the motor 11 can be improved. Specifically, the transmission assembly 16 is disposed within the housing 13 between the middle shell 132 and the upper shell 131. One or some components of the load 20 may be connected to the output shaft 17.

In certain embodiments, the helical gears 1142 include, but are not limited to, spiral bevel gears, face gears, worm gears, and the like.

In some embodiments, the transmission assembly 16 includes a reduction gear set.

It will be appreciated that the gear set is formed by a plurality of gears which mesh together, and that the transmission assembly 16 may be compact in construction and may utilize a plurality of gears to transmit torque by virtue of the cooperation between the plurality of gears. Meanwhile, when the motor 11 works, the rotating speed output by the motor shaft 114 is high, so that the transmission assembly 16 has certain speed reduction performance by reasonably designing the size and the reduction ratio of the gear, the torque can be effectively increased, and the output shaft 17 of the steering engine 10 can output the rotating speed with small rotating speed and large torque.

Specifically, the materials of the helical gear 1142 and the gear may be selected from plastic gears, metal gears, powder metallurgy gears, or gears made of other materials according to the requirement, and are not limited specifically herein. Wherein, the plastic gear has lower cost and is easy to manufacture, which is beneficial to reducing the cost of the steering engine 10. The metal gear is high in strength and not prone to abrasion, and reliability of the steering engine 10 is improved.

In some embodiments, the steering engine 10 includes a controller 18, and the controller 18 is disposed on the circuit board 14 and is configured to control the driving module 122 to drive the motor 11 to operate. Specifically, the controller 18 is configured to determine a target position of the output shaft 17, and control on/off of each switching tube in the driving module 122, so as to drive the motor 11 to operate and drive the output shaft 17 to rotate to the target position. Among them, the target position of the output shaft 17 may be determined according to a control instruction transmitted by a user, or the target position of the output shaft 17 may be determined according to the posture and/or position of the load 20 at the time of automatic control.

Further, in some embodiments, the steering engine 10 includes a position sensing assembly 19, with the output shaft 17 partially located within the housing 13. The output shaft 17 includes a first end 172 located within the housing 13, the first end 172 being provided with a retaining sleeve 1722 made of a non-magnetically permeable material. The position detecting assembly 19 includes a magnetic member 192 and a detecting member 194, one of the magnetic member 192 and the detecting member 194 is disposed on the fixing sleeve 1722, and the detecting member 194 is used for detecting the position information of the magnetic member 192.

In this way, the position detecting component 19 can be used for detecting the rotation angle of the output shaft 17 so as to determine the rotation position of the output shaft 17, wherein the position detecting component 19 is connected with the controller 18 and sends the detected position information of the output shaft 17 to the controller 18, and the controller 18 judges whether the output shaft 17 rotates to the target position according to the received position information of the output shaft 17. The position of the output shaft 17 is more accurate, and the control accuracy of the steering engine 10 is improved.

Wherein, the detection piece 194 can be a magnetic encoder, and the magnetic encoder can be used for detecting the magnetism of magnetic piece 192, and for the contact formula potentiometre, the encoder need not to contact with output shaft 17, and detects the precision height, long service life. When the relative position of the magnetic member 192 and the magnetic encoder changes, the magnetic encoder detects that the magnetism of the magnetic member 192 changes correspondingly, and the magnetic encoder determines the relative position of the magnetic encoder and the magnetic member 192 according to the detected magnetic change, that is, the detecting member 194 can be used for detecting the position information of the magnetic member 192. For example, when the magnetic encoder and the magnetic member 192 rotate relative to each other, the magnetic encoder detects a change in magnetism of the magnetic member 192, and the magnetic encoder determines an angle of rotation of the magnetic encoder relative to the magnetic member 192 based on the detected change in magnetism.

Specifically, one of the magnetic member 192 and the detecting member 194 is provided at the fixing sleeve 1722, that is, one of the magnetic member 192 and the detecting member 194 rotates in synchronization with the output shaft 17. In this way, the detector 194 can detect the position information of the output shaft 17. In one example, the magnetic member 192 is disposed in the fixing sleeve 1722 and can rotate synchronously with the output shaft 17, and the detecting member 194 is fixedly mounted in the housing 13. In another example, the detecting member 194 is disposed in the fixing sleeve 1722 and can rotate synchronously with the output shaft 17, and the magnetic member 192 is fixedly mounted in the housing 13.

Preferably, in the illustrated example, the magnetic element 192 is disposed in the fixing sleeve 1722 and can rotate synchronously with the output shaft 17, and the detecting element 194 is fixedly mounted on the circuit board 14. Thus, the detecting element 194 is fixed in position, facilitating transmission of the detecting signal. In one example, the magnetic member 192 may be a permanent magnet, and the magnetic property of the permanent magnet is relatively stable, which is beneficial to ensuring the accuracy of the magnetic information detected by the detecting member 194 and improving the control accuracy of the steering engine 10.

Wherein the retaining sleeve 1722 may be made of a non-magnetic conductive material such that the magnetic properties between the sensing element 194 and the magnetic element 192 are not affected by the retaining sleeve 1722. In some embodiments, the boot 1722 is made of a plastic material, and the boot 1722 is injection molded into the first end 172. The magnetic member 192 can be embedded in the fixing sleeve 1722, so that the fixing sleeve 1722 has low cost, is easy to manufacture, and has a simple installation manner. Wherein, the magnetic member 192 can be mounted on the fixing sleeve 1722 by gluing, interference fit or other means.

In other embodiments, the fixing sleeve 1722 can be manufactured by machining, 3D printing, or other processing techniques, and is not limited herein.

In some embodiments, the retaining sleeve 1722 and the output shaft 17 can be a unitary structure or separate structures.

In one example, the fixing sleeve 1722 and the output shaft 17 can be an integral structure, that is, the first end 172 of the output shaft 17 is provided with a receiving groove, and the magnetic member 192 can be disposed in the receiving groove. In another example, as shown in fig. 4, the fixing sleeve 1722 and the output shaft 17 are separate structures, and the magnetic member 192 may be first mounted to the fixing sleeve 1722, and then the fixing sleeve 1722 with the magnetic member 192 may be mounted to the output shaft 17.

In some embodiments, the output shaft 17 includes a second end 174 located outside the housing 13, the second end 174 being mounted with a tiller 1742.

Specifically, the rudder disk 1742 can rotate synchronously with the output shaft 17, and the load 20 is connected to the rudder disk 1742, so that the output shaft 17 can drive the load 20 to rotate when rotating, that is, the steering engine 10 can be used for driving the load 20 to rotate so as to control the posture and the relative position of the load 20. The connection between the load 20 and the steering engine 10 can be more convenient through the rudder disk 1742, and the connection stability is better.

In some embodiments, the rudder disk 1742 may be a conical rudder disk 1742. Wherein the conical rudder disk 1742 is in pin connection with the conical inclined surface of the output shaft 17.

In some embodiments, the second end 174 of the output shaft 17 is further provided with a locking screw 1744, and the locking screw 1744 cooperates with the output shaft 17 to fixedly lock the rudder disk 1742 to the output shaft 17.

In certain embodiments, the housing 13 is provided with a mounting shaft 136, and the mounting shaft 136 is provided with a mounting bearing 1362.

Specifically, the second end 174 of the output shaft 17 extends out of the housing 13 from the upper shell 131, and the mounting shaft 136 is provided in the lower shell 133.

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

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. The steering engine is characterized by comprising a motor and a protection circuit, wherein the protection circuit comprises a driving module and a protection module, the protection module is connected with the driving module and the motor, the driving module comprises a first output end and a second output end, the protection module comprises a high-frequency filtering unit, a differential mode filtering unit and a common mode filtering unit, the high-frequency filtering unit is connected with the first output end and the second output end, the differential mode filtering unit is connected with the high-frequency filtering unit and the motor, and the common mode filtering unit is connected with the differential mode filtering unit, the high-frequency filtering unit and the motor.

2. The steering engine of claim 1, wherein the high frequency filtering unit comprises a first magnetic bead and a second magnetic bead, the first magnetic bead is connected to the first output terminal and the differential mode filtering unit, and the second magnetic bead is connected to the second output terminal and the differential mode filtering unit.

3. The steering engine of claim 1, wherein the differential mode filter unit comprises a filter capacitor, and the filter capacitor is connected with the high frequency filter unit and the motor.

4. The steering engine of claim 1, wherein the common mode filter unit comprises a first unit and a second unit, the differential mode filter unit and the high frequency filter unit are connected to form a first connection point and a second connection point, the first unit is connected with the first connection point and the motor, and the second unit is connected with the second connection point and the motor.

5. The steering engine of claim 4, wherein the first unit comprises an RC filter circuit and/or the second unit comprises an RC filter circuit.

6. The steering engine of claim 1, wherein the steering engine comprises a housing and a vibration damping member, the motor and the vibration damping member are located in the housing, the motor comprises a motor housing, and the vibration damping member is located between the motor housing and the housing.

7. The steering engine of claim 6, wherein the motor housing includes an upper end and a lower end, the motor includes a motor shaft, the motor shaft extends out of the upper end, the vibration damping member is disposed between the upper end and the housing, and the vibration damping member is disposed between the lower end and the housing.

8. The steering engine of claim 7, wherein the upper end is provided with a first protrusion, the lower end is provided with a second protrusion, the vibration damping member at the upper end is disposed around the first protrusion, and the vibration damping member at the lower end is disposed around the second protrusion.

9. The steering engine of claim 1, wherein the motor comprises a motor shaft, the steering engine comprises a transmission assembly and an output shaft, the motor shaft is provided with a bevel gear, the transmission assembly is connected with the bevel gear and the output shaft, and the motor is used for driving the output shaft to rotate through the bevel gear and the transmission assembly.

10. The steering engine of claim 9, wherein the transmission assembly includes a reduction gear set.

11. The steering engine of claim 1, wherein the steering engine comprises a housing, an output shaft and a position detecting assembly, the output shaft is partially disposed in the housing, the output shaft comprises a first end disposed in the housing, the first end is provided with a fixing sleeve made of non-magnetic material, the position detecting assembly comprises a magnetic member and a detecting member, one of the magnetic member and the detecting member is disposed in the fixing sleeve, and the detecting member is used for detecting position information of the magnetic member.

12. The steering engine of claim 11, wherein said cover is formed of a plastic material and said cover is injection molded to said first end.

13. The steering engine of claim 11, wherein the output shaft includes a second end located outside the housing, the second end having a rudder disk mounted thereon.

14. The steering engine of claim 13, wherein the rudder disk is a conical rudder disk.

15. An electric device, comprising a load and the steering engine of any one of claims 1-14, wherein the steering engine is connected to the load.