WO2021212471A1

WO2021212471A1 - Gimbal motor electro-static protection method, gimbal drive apparatus, and grounding elastic piece thereof

Info

Publication number: WO2021212471A1
Application number: PCT/CN2020/086693
Authority: WO
Inventors: 林宏; 梁晓东; 张树臣
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2021-10-28

Abstract

A gimbal motor electro-static protection method, a gimbal drive apparatus, and a grounding elastic piece thereof. The discharge method comprises: disposing a grounding elastic piece on a circuit board of a gimbal drive apparatus, and connecting the grounding elastic piece to a grounding circuit on the circuit board; mounting a motor, the motor being located on one side of the circuit board and passing through the circuit board, and the motor being used to drive a shaft arm of the gimbal to rotate; making the grounding elastic piece abut against the motor, so that static electricity of the motor is led to the grounding circuit on the circuit board by means of the grounding elastic piece and is then discharged, thus achieving the electro-static discharge of the motor, which prevents static electricity from damaging the motor or the circuit board, and can ensure the normal operation of the gimbal.

Description

Electrostatic protection method for pan/tilt motor, pan/tilt driving device and grounding shrapnel

Technical field

The application relates to the technical field of static electricity protection of a pan/tilt head, and in particular to a static electricity protection method of a pan/tilt motor, a pan/tilt driving device and a grounding shrapnel.

Background technique

PTZ is the supporting equipment for installing and fixing cameras, mobile phones and other photographic equipment. It is widely used in scenes such as film and television drama shooting and drone aerial photography. The pan-tilt has multiple shaft arms, and the rotation of the multiple shaft arms drives the photographic equipment to shoot from different angles to obtain ideal images. The rotation of the shaft arm is driven by the pan/tilt motor. The motor on the pan/tilt is different from the ordinary motor. Its shape and size are small. It is located in a narrow space of the pan/tilt, and it is difficult to prevent electrostatic discharge (ESD).

In the design of the pan/tilt motor, the gap between the stator metal and the circuit board is very small, less than 8mm. Static electricity is very easy to jump to the stator metal. If the stator metal is not grounded and there is no leakage path, it will cause a secondary jump to interfere with the circuit board and affect the operation of electronic equipment.

Summary of the invention

The purpose of this application is to provide a method for protecting the pan/tilt motor from static electricity, a pan/tilt drive device and its grounding shrapnel, so as to solve the problem of static discharge of the pan/tilt motor.

In order to achieve the purpose of this application, this application provides the following technical solutions:

In the first aspect, this application provides a method for preventing static electricity of a gimbal motor, including:

Arranging the ground spring plate on the circuit board of the pan-tilt driving device, and connecting the ground spring plate to the ground circuit on the circuit board;

Installing a motor, the motor being located on one side of the circuit board or passing through the circuit board, and the motor is used to drive the pivot arm of the pan/tilt head to rotate;

The ground elastic piece is abutted to the motor, so that the static electricity of the motor is discharged to the ground circuit on the circuit board through the ground elastic piece.

By setting the grounding shrapnel, the grounding shrapnel is in contact with the motor, and the static electricity on the motor is exported to the grounding circuit of the circuit board, which realizes the electrostatic discharge of the motor, prevents static electricity from damaging the motor or the circuit board, and can ensure the normal operation of the gimbal.

In a second aspect, the present application provides a pan-tilt driving device, including a circuit board, a ground elastic piece and a motor, the ground elastic piece is provided on the circuit board, and the ground elastic piece is connected to the ground circuit on the circuit board, The motor is arranged on one side of the circuit board or penetrates through the circuit board, the motor is used to drive the pivot arm of the pan/tilt to rotate, and the ground spring abuts against the motor.

In this application, the grounding shrapnel is arranged to abut the motor, and the static electricity on the motor is exported to the grounding circuit of the circuit board to realize the electrostatic discharge of the motor, avoid static electricity to damage the motor or the circuit board, and ensure the normal operation of the pan/tilt.

In a third aspect, the present application provides a grounding elastic piece of a pan/tilt driving device, comprising a main body part and an elastic part, the elastic part is elastically connected with the main body part, the main body part is used for fixing to a circuit board, the elastic part The part is used for abutting with a motor, the motor is used for driving the pivot arm of the pan/tilt to rotate, and the static electricity of the motor is led out to the grounding circuit on the circuit board through the grounding elastic sheet and discharged.

With the structure of the main body part of the bottom plate, the bent plate and the end plate, the bottom plate can be stably fixed on the circuit board, and the bent plate and the end plate can produce a certain deformation, which can provide the elastic part with a larger elastic deformation space, satisfying and different The requirements for resistance to the motor under conditions such as position and different angles.

Description of the drawings

Fig. 1 is a schematic plan view of a pan-tilt driving device according to an embodiment;

Fig. 2 is a schematic plan view of a pan-tilt driving device according to another embodiment;

Fig. 3 is a schematic diagram of a three-dimensional structure of a pan-tilt driving device according to an embodiment;

FIG. 4 is a schematic diagram of a three-dimensional structure of a grounding elastic piece according to an embodiment;

Fig. 5 is a schematic diagram of structural deformation of a grounding elastic piece according to an embodiment.

Specific embodiment

The technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or a centered component may also exist. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a centered component at the same time.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of this application. The terms used in the specification of the application herein are only for the purpose of describing specific embodiments, and are not intended to limit the application. The term "and/or" as used herein includes any and all combinations of one or more related listed items.

Hereinafter, some embodiments of the present application will be described in detail with reference to the accompanying drawings. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

Please refer to FIG. 1, this application provides a pan-tilt driving device, which includes a circuit board 10, a ground spring 20 and a motor 30. The ground spring 20 is provided on the circuit board 10, and the ground spring 20 is connected to the ground circuit 11 on the circuit board 10. The motor 30 is provided on the side of the circuit board 10, and the motor 30 is supported and fixed by the housing, bracket and other structures on the pan/tilt. The motor 30 is used to drive the shaft arm of the pan/tilt to rotate, and the grounding elastic piece 20 abuts against the motor 30.

Please refer to FIG. 2, the motor 30 may also be arranged on the circuit board 10, specifically, the motor 30 is inserted through the circuit board 10, and the motor 30 is fixed by fixing members such as claws and buckles on the circuit board 10.

The motor 30 is located at the connection position of the pan-tilt with a relatively rotating shaft arm, and the output shaft of the motor 30 drives the shaft arm to rotate, thereby realizing the posture adjustment of the pan-tilt.

Static electricity is often generated on the motor 30, and the static electricity needs to be exported to the ground to avoid damaging the motor 30 or the circuit board 10 and causing the pan/tilt to fail.

In this application, by setting the ground spring 20, the ground spring 20 is in contact with the motor 30, and the static electricity on the motor 30 is exported to the ground circuit 11 of the circuit board 10, so as to realize the static discharge of the motor 30 and prevent the static electricity from damaging the motor 30 or the circuit board 10. It can ensure the normal operation of the PTZ.

The circuit board 10 is a printed circuit board (PCB). In addition to the grounding circuit 11, the circuit board 10 can also be provided with a control circuit, a signal receiving and sending circuit, a signal amplifying circuit, etc., without too much restriction. The grounding circuit 11 can be connected to a structure such as the housing of the pan/tilt, so as to transmit static electricity to the housing of the pan/tilt through the grounding circuit 11 to achieve grounding.

The ground spring 20 can conduct electricity, and its material can be all metal/metal alloy or at least part of metal. The specific material can be iron, copper, aluminum or alloys thereof, etc., and can electrically connect the motor 30 to the ground circuit 11 of the circuit board 10 .

1 and 2, the motor 30 includes a stator 31 and a rotor 32. The stator 31 encloses a cavity 301. The rotor 32 is accommodated in the cavity 301 and rotates relative to the stator 31. The ground spring 20 abuts the stator 31. The static electricity generated on the rotor 32 and the stator 31 is led out to the grounding circuit 11 of the circuit board 10 through the ground spring sheet 20. Since the stator 31 is the stationary part of the motor 30 and the rotor 32 is the rotating part, the ground spring sheet 20 is abutted against the stator 31, It can ensure the stability of the connection, and the static discharge path is stable.

The ground elastic piece 20 includes a main body portion 21 and an elastic portion 22, the elastic portion 22 is elastically connected to the main body portion 21, the main body portion 21 is fixed to the circuit board 10, and the elastic portion 22 extends in the direction of the stator 31. The elastic portion 22 is elastically connected to the main body 21, so that the elastic portion 22 can be elastically deformed when subjected to force. When the elastic portion 22 and the stator 31 are resisted, due to the pressure of the mutual resisting force, the elastic portion 22 is compressed to produce elasticity. The deformation enables the elastic portion 22 to always keep abutting against the stator 31, so as to ensure that the connection between the ground spring 20 and the motor 30 is reliable and will not be disconnected.

The main body portion 21 may be made of hard material, but may not have elasticity, and the elastic portion 22 may be made of elastic material and have elasticity. The grounding circuit 11 can be connected to the main body 21. At this time, the grounding circuit 11 can be a metal trace printed on the circuit board 10. The grounding circuit 11 may also be connected to the elastic part 22. At this time, the grounding circuit 11 includes a part located on the circuit board 10 and a part extending from the circuit board 10 to the elastic part 22.

The main body 21 and the circuit board 10 are connected and fixed by a surface mount process. That is, the main body portion 21 is formed on the circuit board 10 by a surface mount process. Surface Mounted Technology (SMT) is a series of processes for processing on printed circuit boards, and is one of the most popular technologies and processes in the electronics assembly industry. For example, resistors, capacitors, integrated circuit chips and other components are mounted on a printed circuit board through surface mount technology, and then soldered and assembled by methods such as reflow soldering or dip soldering. The main body 21 and the circuit board 10 are connected and fixed by a surface mount process, which is equivalent to using the main body 21 as components such as resistors and capacitors, which are manufactured through a highly automated surface mount process, without additional labor and high efficiency. .

In other embodiments, the main body 21 may also be connected and fixed to the circuit board 10 by other types of processes, as long as the main body 21 and the circuit board 10 can be stably connected, and the specific processes used will not be repeated.

In an embodiment, the elastic portion 22 and the main body portion 21 are an integral structure. The elastic portion 22 and the main body 21 may be formed by an integral molding process, so that the elastic portion 22 and the main body 21 are integrated, which is convenient to be installed on the circuit board 10.

In other embodiments, the elastic portion 22 and the main body 21 may also be a non-integral structure, that is, the elastic portion 22 and the main body 21 are two parts. When installing the ground spring 20 to the circuit board 10, it is necessary to first connect the elastic part 22 with the main body 21, and then install the whole of the main body 21 and the elastic part 22 on the circuit board 10; or, first install the main body 21 on the circuit board 10. On the circuit board 10, the elastic portion 22 is connected to the main body portion 21. Compared with the integrated structure of the elastic part 22 and the main body 21, the non-integrated structure requires one more process of connecting the elastic part 22 and the main body 21.

When the static electricity is released, it will be released preferentially from the path with low impedance. Therefore, in order to guide the static electricity to be discharged through the ground spring 20, the impedance of the ground spring 20 is set to be small. For example, the contact resistance of the ground spring 20 is less than 30mΩ, which is much smaller than the motor 30 and The contact resistance of other components (such as the circuit board 10, the housing of the pan-tilt, the bracket, etc.) can cause the static electricity of the motor 30 to be led out through the path of the ground spring 20, avoiding the disordered flow of static electricity and causing the power jump problem.

In an embodiment, referring to FIGS. 2 and 3, the stator 31 includes a sleeve 311 and a flange 312. The edge stand 312 protrudes from the outer circumference of the sleeve 311, and the sleeve 311 surrounds and forms a cavity 301 for receiving the rotor 32. The elastic portion 22 abuts against the edge platform 312. The inner wall of the sleeve 311 is provided with a permanent magnet, and the rotor 32 is provided with a coil. When the coil is energized, the magnetic field formed by the permanent magnet is rotated by the magnetic force. The sleeve 311 and the edge platform 312 are used to install the motor 30, that is, as shown in FIG. The connection is fixed, the main body portion 21 of the ground spring 20 is arranged at a position close to the edge of the circuit board 10, and the elastic portion 22 extends to the outside of the circuit board 10 and abuts against the edge platform 312; as shown in FIG. 2, when the motor 30 passes through When the circuit board 10 is used, the sleeve 311 and the edge platform 312 are connected with the fixing parts such as the claws and the buckles on the circuit board 10. As shown in FIGS. 2 and 3, the circuit board 10 is provided with a through hole, the sleeve 311 penetrates through the through hole, and the outer peripheral surface of the sleeve 311 does not contact the inner wall of the through hole. The claws, buckles and other fixing parts provided on the circuit board 10 are made of insulating material, the sleeve 311 and the edge platform 312 are made of conductive material such as metal, and the sleeve 311 does not contact the inner wall of the through hole of the circuit board 10 to prevent static electricity from directly passing through The sleeve 311 and the inner wall of the through hole are guided to the circuit board 10. In order to prevent the occurrence of power jump, the distance between the outer circumferential surface of the sleeve 311 and the inner wall of the through hole is 1mm-8mm, preferably 5mm-8mm, which can To prevent the static electricity of the sleeve 311 from jumping onto the circuit board 10, it can only be exported to the ground circuit 11 of the circuit board 10 through the ground spring 20, so as to avoid damaging the components on the circuit board 10.

The sleeve 311 has a cylindrical shape. The edge table 312 is arranged at one end of the sleeve 311. The plane formed by the edge table 312 is approximately parallel to the circuit board 10. The sleeve 311 and the edge table 312 can be provided with structures such as through holes and grooves. It is convenient to connect and fix the structure with claws, buckles and other structures. The sleeve 311 and the edge platform 312 are connected with the claws, buckles and other structures to realize circumferential and radial fixation. An axial fixing boss 34 is also provided at the axial end of the sleeve 311 close to the edge platform 312. The axial fixing boss 34 is used for connecting and fixing with the housing, bracket and other structures of the pan/tilt to realize axial fixation. , Thereby realizing the complete fixation of the stator 31. In order to facilitate the connection of the axial fixing boss 34, a mounting hole 302 can be provided at the end of the axial fixing boss 34, and structures such as the housing and the bracket can extend into the mounting hole 302, which can realize the fixing more conveniently. In addition, an external interface can be provided at the axial fixing boss 34 for connecting with the power supply of the pan/tilt.

1 to 5, the present application provides a ground spring 20 of a pan/tilt driving device, including a main body 21 and an elastic part 22, the elastic part 22 is elastically connected to the main body 21, and the main body 21 is used to be fixed to a circuit board 10. The elastic portion 22 is used to abut the motor 30, and the motor 30 is used to drive the pivot arm of the pan/tilt to rotate. freed. By fixing the main body portion 21 of the ground spring 20 to the circuit board 10, the elastic portion 22 abuts against the motor 30, which can lead the static electricity of the motor 30 to the grounding circuit 11 of the circuit board 10 for release, avoiding the static electricity from being discharged from nowhere and jumping To the circuit board 10, the motor 30 or the circuit board 10 is damaged.

Please refer to FIGS. 3 to 5, the main body 21 includes a bottom plate 211, a bent plate 212 and an end plate 213 connected in sequence. The bottom plate 211 is in close contact with the circuit board 10, the bent plate 212 is curved, the end plate 213 extends in a direction protruding from the bottom plate 211, and the elastic portion 22 is connected to an end of the end plate 213 away from the bent plate 212.

Specifically, the bottom plate 211 can be attached to the circuit board 10 through a surface mount process. The bent plate 212 is roughly in a shape with a middle part protruding away from the circuit board 10, forming a bent plate groove 201 facing the circuit board 10. One end of the bent plate 212 is connected to the bottom plate 211, and the opposite end is connected to the end plate 213. The bent plate groove 201 is located between the two ends of the bent plate 212. The end of the bent plate 212 connected to the end plate 213 can be on the same plane with the bottom plate 211 when it is not deformed, and can be in contact with the circuit board 10, and can be far away when deformed. Circuit board 10. The connection between the bent plate 212 and the end plate 213 can be treated with a circular arc to enhance the strength of the structure and avoid stress concentration. The plane where the end plate 213 is located roughly forms an angle of 70°-110° with the plane where the bottom plate 211 is located. When the elastic portion 22 is pressed against the motor 30 and pressed, the end plate 213 can also be deformed, driving the bent plate 212 to produce a certain deformation, and the angle between the plane where the end plate 213 is located and the plane where the bottom plate 211 is located can also change.

Therefore, with the structure of the main body 21 of the bottom plate 211, the bent plate 212 and the end plate 213, the bottom plate 211 can be stably fixed on the circuit board 10. 22. Larger elastic deformation space meets the requirements of resisting the motor 30 under different positions and different angles.

The elastic portion 22 includes a connecting plate 221, an abutting plate 222, and a rebounding plate 223 that are connected in sequence. The connecting plate 221 is connected to the end plate 213, the abutting plate 222 extends in a direction away from the bottom plate 211, the connection between the rebounding plate 223 and the abutting plate 222 is bent, the rebounding plate 223 extends in the direction toward the bottom plate 211, and the abutting plate 222 is used to abut the motor 30. When the contact plate 222 is elastically deformed under the pressure of the motor 30, the rebound plate 223 abuts the bottom plate 211.

Specifically, the connection between the connecting plate 221 and the end plate 213 may also be subjected to arc transition treatment to avoid stress concentration. The plane where the connecting plate 221 is located when it is not deformed may be substantially parallel to the plane where the bottom plate 211 is located. The connection between the abutment plate 222 and the connection plate 221 can be treated with a circular arc to avoid stress concentration. The plane where the abutment plate 222 is located and the plane where the connection plate 221 is located form an included angle of about 100°-150°. When the portion 222 abuts against the motor 30 and receives force, the included angle can also be changed. The connection between the abutment plate 222 and the rebound plate 223 can be treated with a larger angle of arc, so that the entire abutment plate 222 and the rebound plate 223 form a shape that is bent about 180°, so that the rebound plate 223 is away from the abutment plate 222 One end of it can resist to the bottom plate 211.

2 and 5, when the ground spring 20 has not yet resisted the motor 30, as shown in A in FIG. The position where the 223 is connected is far away from the bottom plate 211, and the end of the rebound plate 223 away from the abutment plate 222 may have a certain distance from the bottom plate 211. At this time, the grounding elastic piece 20 is in an unstressed state, and when subsequent elastic deformation occurs, it will have a tendency to deform to the position in the unstressed state. When the ground spring 20 is against the motor 30, as shown in B in FIG. In addition, a rebound force is provided to the abutment plate 222, plus the rebound force of the end plate 213 to the connecting plate 221, so that the abutment plate 222 has a tendency to move away from the bottom plate 211 and return to the original position (the position shown in A), thereby The abutment plate 222 can always keep abutting with the motor 30, so as to ensure the continuity and reliability of the static flow path. When the connecting plate 221, the abutting plate 222 and the rebounding plate 223 are deformed, the bent plate 212 and the end plate 212 may also be deformed to a certain extent.

In one embodiment, the anti-seize plate 224 is connected to the end of the rebound plate 223 away from the abutment plate 222. The anti-seize plate 224 and the rebound plate 223 have a smooth transition. The anti-seize plate 224 is used to prevent the rebound plate 223 from resisting the bottom plate 211. Caton. The smooth transition of the anti-seize plate 224 and the rebound plate 223 makes that when the rebound plate 223 abuts the bottom plate 221, what is in contact with the bottom plate 221 is the arc surface formed by the arc transition of the anti-seize plate 224 and the rebound plate 223. There are sharp ends, and the arc surface can move freely on the bottom plate 211 to avoid structural instability of the rebound plate 223 caused by jamming.

In other embodiments, the blocking plate 224 may not be provided, but the end of the rebounding plate 223 away from the abutting plate 222 is smoothed. At the same time, the bottom plate 211 is smoothed. It will get stuck.

When the resisting plate 222 is pressed by the motor 30 and moves toward the bottom plate 211, the rebounding plate 223 moves toward the bent plate 212. The protrusion in the middle of the bent plate 212 can play a role in restricting the rebound plate 223 from continuing to move in the direction of the end plate 213.

The end of the abutment plate 222 away from the connection plate 221 may also be provided with a connecting protrusion 225, which protrudes from the surface of the arc transition formed by the abutment plate 222 and the rebound plate 223, and the connection protrusion 225 is used for connecting to the motor 30 butt. The connecting protrusion 225 abuts against the motor 30. Compared with the arc surface abuts against the motor 30, the contact area between the two is reduced and the abutment can be made more reliable.

The bottom plate 211 is also provided with a limit plate 214. The number of limit plates 214 is two, which are distributed on both sides of the elastic part 22. When the elastic part 22 undergoes elastic deformation, the elastic part 22 is surrounded by the limit plate 214 and the bottom plate 211. Movement in a cohesive space. The limiting plate 214 can play a limiting role to avoid excessive deformation of the elastic portion 22 which may cause structural instability.

A weight reduction hole 202 can also be provided on the ground spring 20, and the weight reduction hole 202 can be located at any position, for example, on the limiting plate 214 as shown in FIG. 4, the weight reduction hole 202 is used for weight reduction.

Please refer to Figures 1 to 5, combined with the foregoing description of the shape and structure, the present application also provides a method for preventing static electricity of a pan/tilt motor, including:

Set the ground spring sheet 20 on the circuit board 10 of the pan/tilt driving device, and connect the ground spring sheet 20 to the ground circuit 11 on the circuit board 10;

Install a motor 30, the motor 30 is located on one side of the circuit board 10 or penetrates the circuit board 10, and the motor 30 is used to drive the pivot arm of the pan/tilt to rotate;

The ground elastic piece 20 is abutted to the motor 30 so that the static electricity of the motor 30 is discharged to the ground circuit 11 on the circuit board 10 through the ground elastic piece 20.

In this application, the grounding spring 20 is provided to abut the grounding spring 20 and the motor 30, and the static electricity on the motor 30 is exported to the grounding circuit 11 of the circuit board 10, so as to realize the static discharge of the motor 30 and prevent the static electricity from damaging the motor 30 or the circuit board 10. It can ensure the normal operation of the PTZ.

Wherein, abutting the ground elastic sheet 20 to the motor 30 includes: abutting the ground elastic sheet 20 to the stator 31.

Wherein, arranging the ground elastic piece 20 on the circuit board 10 includes fixing the main body portion 21 to the circuit board 10 and extending the elastic portion 22 toward the direction of the stator 31.

Among them, the main body 21 is formed on the circuit board 11 through a surface mount process.

Wherein, the elastic portion 22 and the main body portion 21 form an integral structure through an integral molding process.

Abutting the ground elastic sheet 20 to the stator 31 includes: abutting the elastic portion 22 to the edge platform 312.

The application is described in detail above, and specific examples are used in this article to illustrate the principles and embodiments of the application. The description of the above embodiments is only used to help understand the methods and core ideas of the application; at the same time, for the field According to the ideas of this application, the general technical personnel of, will have changes in the specific embodiments and application scope. In summary, the content of this specification should not be construed as a limitation to this application.

Claims

A method for preventing static electricity of a pan/tilt motor, which is characterized in that it comprises:

Arranging the ground spring plate on the circuit board of the pan-tilt driving device, and connecting the ground spring plate to the ground circuit on the circuit board;

Installing a motor, the motor being located on one side of the circuit board or passing through the circuit board, and the motor is used to drive the pivot arm of the pan/tilt head to rotate;

The ground elastic piece is abutted to the motor, so that the static electricity of the motor is discharged to the ground circuit on the circuit board through the ground elastic piece.
The method for preventing static electricity of a pan/tilt motor according to claim 1, wherein the motor includes a stator and a rotor, the stator is enclosed to form a cavity, and the rotor is accommodated in the cavity and opposed to the stator Rotating to abut the grounding elastic piece to the motor includes:

Abut the ground elastic piece to the stator.
The method for preventing static electricity of a pan/tilt motor according to claim 2, wherein the ground elastic piece comprises a main body and an elastic portion, the elastic portion is elastically connected to the main body, and the ground elastic piece is arranged on the The circuit board includes:

The main body portion is fixed to the circuit board, and the elastic portion extends toward the stator.
8. The method for preventing static electricity of a pan/tilt motor according to claim 3, wherein the main body is formed on the circuit board by a surface mount process.
The method for preventing static electricity of a pan/tilt motor according to claim 3, wherein the elastic part and the main body part are formed into an integral structure through an integral molding process.
The method for preventing static electricity of a pan/tilt motor according to claim 3, wherein the stator includes a sleeve and a flange, the flange protruding from the outer periphery of the sleeve, and the sleeve is enclosed to form a The containing cavity for accommodating the rotor, and abutting the grounding elastic piece to the stator includes:

The elastic part is abutted to the edge platform.
A pan-tilt driving device, characterized in that it comprises a circuit board, a grounding elastic piece and a motor, the grounding elastic piece is provided on the circuit board, and the grounding elastic piece is connected to the grounding circuit on the circuit board, and the motor It is arranged on one side of the circuit board or passes through the circuit board, the motor is used to drive the pivot arm of the pan/tilt to rotate, and the grounding elastic piece abuts against the motor.
7. The pan-tilt driving device according to claim 7, wherein the motor includes a stator and a rotor, the stator is enclosed to form a cavity, and the rotor is accommodated in the cavity and rotates relative to the stator, The ground elastic piece abuts against the stator.
8. The pan/tilt driving device according to claim 8, wherein the ground elastic piece comprises a main body part and an elastic part, the elastic part is elastically connected with the main body part, and the main body part is fixed to the circuit board, The elastic portion extends toward the direction of the stator.
9. The pan/tilt driving device according to claim 9, wherein the main body and the circuit board are connected and fixed by a surface mount process.
9. The pan/tilt driving device according to claim 9, wherein the elastic part and the main body part are an integral structure.
The pan/tilt driving device according to claim 9, wherein the stator includes a sleeve and a flange, the flange protruding from the outer periphery of the sleeve, and the sleeve encloses to form the container Cavity to accommodate the rotor, and the elastic part abuts against the edge platform.
A grounding elastic piece of a pan/tilt driving device, characterized in that it comprises a main body part and an elastic part, the elastic part is elastically connected with the main part, the main part is used for fixing to a circuit board, and the elastic part is used for In contact with the motor, the motor is used to drive the pivot arm of the pan/tilt head to rotate, and the static electricity of the motor is discharged to the ground circuit on the circuit board through the ground spring sheet.
The grounding spring plate according to claim 13, wherein the main body includes a bottom plate, a bent plate, and an end plate that are sequentially connected, the bottom plate is in close contact with the circuit board, and the bent plate is curved, so The end plate extends in a direction protruding from the bottom plate, and the elastic portion is connected to an end of the end plate away from the bent plate.
The grounding spring plate according to claim 14, wherein the elastic part comprises a connecting plate, an abutting plate and a rebounding plate that are connected in sequence, the connecting plate is connected to the end plate, and the abutting plate runs along the back Extending in the direction of the bottom plate, the connection between the rebound plate and the abutment plate is bent, the rebound plate extends in the direction toward the bottom plate, and the abutment plate is used for abutting against the motor When the abutment plate is elastically deformed under the pressure of the motor, the rebound plate abuts the bottom plate.
The grounding spring plate according to claim 15, wherein the end of the rebound plate away from the abutment plate is connected with an anti-seize plate, the anti-seize plate and the rebound plate transition smoothly, and the anti-seize plate It is used to prevent the bounce board from being stuck when it resists the bottom board.
15. The grounding spring plate of claim 15, wherein when the resisting plate moves toward the bottom plate under the pressure of the motor, the rebounding plate moves toward the bent plate.
The grounding elastic piece according to any one of claims 14-17, wherein the bottom plate is further provided with a limit plate, the limit plate is located on both sides of the elastic part, the elastic part undergoes elastic deformation At this time, the elastic parts all move in the space enclosed by the limiting plate and the bottom plate.