WO2021212471A1 - Gimbal motor electro-static protection method, gimbal drive apparatus, and grounding elastic piece thereof - Google Patents
Gimbal motor electro-static protection method, gimbal drive apparatus, and grounding elastic piece thereof Download PDFInfo
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- WO2021212471A1 WO2021212471A1 PCT/CN2020/086693 CN2020086693W WO2021212471A1 WO 2021212471 A1 WO2021212471 A1 WO 2021212471A1 CN 2020086693 W CN2020086693 W CN 2020086693W WO 2021212471 A1 WO2021212471 A1 WO 2021212471A1
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- Prior art keywords
- plate
- motor
- circuit board
- pan
- elastic
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000003068 static effect Effects 0.000 claims abstract description 44
- 230000005611 electricity Effects 0.000 claims abstract description 40
- 230000007704 transition Effects 0.000 claims description 6
- 230000005489 elastic deformation Effects 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 210000000078 claw Anatomy 0.000 description 5
- 239000013585 weight reducing agent Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/12—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/22—Contacts for co-operating by abutting
- H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/40—Structural association with grounding devices
Definitions
- 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.
- 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).
- ESD electrostatic discharge
- 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.
- 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.
- this application provides a method for preventing static electricity of a gimbal motor, including:
- 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 grounding shrapnel 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.
- 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.
- 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.
- 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.
- the bottom plate 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.
- 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.
- a component when 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.
- 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.
- 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.
- 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).
- 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 .
- 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.
- 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 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. .
- 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.
- 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.
- 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.
- the elastic portion 22 is connected to the main body portion 21.
- the non-integrated structure requires one more process of connecting the elastic part 22 and the main body 21.
- the impedance of the ground spring 20 is set to be small.
- the contact resistance of the ground spring 20 is less than 30m ⁇ , which is much smaller than the motor 30 and
- the contact resistance of other components 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.
- 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
- 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.
- 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.
- 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.
- 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.
- an external interface can be provided at the axial fixing boss 34 for connecting with the power supply of the pan/tilt.
- 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.
- 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
- the elastic portion 22 is connected to an end of the end plate 213 away from the bent plate 212.
- 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.
- 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.
- 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.
- the contact plate 222 is elastically deformed under the pressure of the motor 30, the rebound plate 223 abuts the bottom plate 211.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- the present application also provides a method for preventing static electricity of a pan/tilt motor, including:
- 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.
- 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.
- abutting the ground elastic sheet 20 to the motor 30 includes: abutting the ground elastic sheet 20 to the stator 31.
- 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.
- the main body 21 is formed on the circuit board 11 through a surface mount process.
- 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.
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Elimination Of Static Electricity (AREA)
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
本申请涉及云台静电防护技术领域,具体涉及一种云台电机静电防护方法、云台驱动装置和接地弹片。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.
云台是安装、固定摄像机、手机等摄影器材的支撑设备,广泛应用在影视剧拍摄、无人机航拍等场景中。云台具有多个轴臂,通过多个轴臂的转动,带动摄影器材从不同角度进行拍摄,得到理想的影像。轴臂的转动是通过云台电机驱动的,在云台上的电机与普通电机不同,其形状和尺寸小,位于云台的狭窄空间中,静电防护(Electro-Static discharge,ESD)难度大。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).
在云台电机的设计中定子金属和电路板的间隙很小,小于8mm。静电非常容易跳到定子金属上,若定子金属未接地,无泄放路径,则会进行二次跳电干扰电路板,影响电子设备的运行。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.
发明内容Summary of the invention
本申请的目的是提供一种云台电机静电防护方法、云台驱动装置及其接地弹片,解决云台电机的静电释放问题。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.
为实现本申请的目的,本申请提供了如下的技术方案:In order to achieve the purpose of this application, this application provides the following technical solutions:
第一方面,本申请提供一种云台电机静电防护方法,包括:In the first aspect, this application provides a method for preventing static electricity of a gimbal motor, including:
将接地弹片设于云台驱动装置的电路板上,并将所述接地弹片连接至所述电路板上的接地电路;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;
安装电机,所述电机位于所述电路板的一侧或穿设于所述电路板,所述电机用于驱动所述云台的轴臂转动;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;
将所述接地弹片抵接至所述电机,以使所述电机的静电通过所述接地弹片导出至所述电路板上的接地电路而释放。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.
通过设置接地弹片,将接地弹片与电机抵接,电机上的静电导出到电路板的接地电路,实现电机的静电释放,避免静电损坏电机或电路板,能保证云台的正常运行。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.
第二方面,本申请提供一种云台驱动装置,包括电路板、接地弹片和电机,所述接地弹片设于所述电路板,且所述接地弹片与所述电路板上的接地电路连接,所述电机设于所述电路板一侧或穿设于所述电路板,所述电机用于驱动所述云台的轴臂转动,所述接地弹片与所述电机抵接。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.
本申请通过设置接地弹片,接地弹片与电机抵接,将电机上的静电导出到电路板的接地电路,实现电机的静电释放,避免静电损坏电机或电路板,能保证云台的正常运行。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.
第三方面,本申请提供一种云台驱动装置的接地弹片,包括主体部和弹性部,所述弹 性部与所述主体部弹性连接,所述主体部用于固定至电路板,所述弹性部用于与电机抵接,所述电机用于驱动所述云台的轴臂转动,所述电机的静电通过所述接地弹片导出至所述电路板上的接地电路而释放。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.
设置底板、弯板和端板的主体部的结构,底板能稳定的固定在电路板上,弯板和端板能产生一定的形变,能提供给弹性部更大的弹性形变空间,满足与不同位置、不同角度等情形下与电机抵持的要求。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.
图1是一种实施例的云台驱动装置的平面结构示意图;Fig. 1 is a schematic plan view of a pan-tilt driving device according to an embodiment;
图2是另一种实施例的云台驱动装置的平面结构示意图;Fig. 2 is a schematic plan view of a pan-tilt driving device according to another embodiment;
图3是一种实施例的云台驱动装置的三维结构示意图;Fig. 3 is a schematic diagram of a three-dimensional structure of a pan-tilt driving device according to an embodiment;
图4是一种实施例的接地弹片的立体结构示意图;FIG. 4 is a schematic diagram of a three-dimensional structure of a grounding elastic piece according to an embodiment;
图5是一种实施例的接地弹片的结构形变示意图。Fig. 5 is a schematic diagram of structural deformation of a grounding elastic piece according to an embodiment.
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚地描述,显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。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.
需要说明的是,当组件被称为“固定于”另一个组件,它可以直接在另一个组件上或者也可以存在居中的组件。当一个组件被认为是“连接”另一个组件,它可以是直接连接到另一个组件或者可能同时存在居中组件。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.
除非另有定义,本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的,不是旨在于限制本申请。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。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.
下面结合附图,对本申请的一些实施方式作详细说明。在不冲突的情况下,下述的实施例及实施例中的特征可以相互组合。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.
请参考图1,本申请提供一种云台驱动装置,包括电路板10、接地弹片20和电机30。接地弹片20设于电路板10,且接地弹片20与电路板10上的接地电路11连接,电机30设于电路板10一侧,电机30通过云台上的壳体、支架等结构支撑固定,电机30用于驱动云台的轴臂转动,接地弹片20与电机30抵接。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.
请参考图2,电机30也可设置在电路板10上,具体为电机30穿设于电路板10,电机30通过电路板10上的卡爪、卡扣等固定件固定。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.
电机30位于云台的具有相对转动的轴臂的连接位置处,电机30的输出轴带动轴臂转动,从而实现云台的姿态调整。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.
在电机30上会经常产生静电,需要将静电导出接地,以避免损坏电机30或电路板10,造成云台失效。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.
本申请通过设置接地弹片20,接地弹片20与电机30抵接,将电机30上的静电导出到电路板10的接地电路11,实现电机30的静电释放,避免静电损坏电机30或电路板10,能保证云台的正常运行。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.
电路板10为印刷电路板PCB(Printed Circuit Board),电路板10上除设有接地电路11外,还可设有控制电路、信号接收与发送电路、信号放大电路等,不做过多限制。接地电路11可与云台的壳体等结构连接,以将静电通过接地电路11传递至云台的壳体等位置实现接地。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.
接地弹片20能导电,其材质可全部为金属/金属合金或至少部分为金属,具体的材质可为铁、铜、铝或其合金等,能将电机30与电路板10的接地电路11电连接。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 .
请参考图1和图2,电机30包括定子31和转子32,定子31围合形成容腔301,转子32收容于容腔301,并相对定子31转动,接地弹片20与定子31抵接。转子32和定子31上产生的静电通过接地弹片20导出到电路板10的接地电路11,由于定子31为电机30的不动部分,转子32为转动部分,将接地弹片20与定子31抵接,能保证连接的稳定性,静电释放路径稳定。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.
接地弹片20包括主体部21和弹性部22,弹性部22与主体部21弹性连接,主体部21固定于电路板10,弹性部22朝向定子31的方向延伸。弹性部22弹性连接在主体部21,使得弹性部22在受力时能够产生弹性形变,弹性部22与定子31抵持时,由于相互抵持的压力的作用,弹性部22受压而产生弹性形变,使得弹性部22能够始终保持抵接定子31的状态,从而保证接地弹片20与电机30的连接可靠而不会断开。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.
主体部21可为硬质材质,可不具有弹性,弹性部22可为弹性材质,具有弹性。接地电路11可与主体部21连接,此时接地电路11可为电路板10上印刷的金属走线。接地电路11也可与弹性部22连接,此时接地电路11包括位于电路板10上的部分和自电路板10上延伸至弹性部22的部分。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.
主体部21与电路板10通过表面贴装工艺连接固定。即,主体部21通过表面贴装工艺形成在电路板10上。表面贴装技术(Surface Mounted Technology,SMT)是在印刷电路板上进行加工的系列工艺,是电子组装行业里最流行的一种技术和工艺。例如电阻、电容、集成电路芯片等元器件通过表面贴装技术贴设在印刷电路板上,再通过再流焊或浸焊等方法加以焊接组装。主体部21与电路板10通过表面贴装工艺连接固定,相当于把主体部21作为如电阻、电容等的元器件,通过高度自动化的表面贴装工艺制作,不需要额外的增加人工,效率高。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. .
其他实施例中,主体部21也可采用其他类型的工艺与电路板10连接固定,只要能实现主体部21与电路板10的稳定连接即可,具体采用的工艺不再赘述。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.
一种实施例中,弹性部22与主体部21为一体式结构。弹性部22与主体部21可以为一体成型工艺形成,使得弹性部22和主体部21为一个整体,便于安装到电路板10上。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.
其他实施例中,弹性部22与主体部21也可为非一体式结构,即弹性部22与主体部21为两个部件。将接地弹片20安装到电路板10时,需要先将弹性部22与主体部21连接,再将主体部21与弹性部22的整体安装到电路板10上;或者,先将主体部21安装到电路板10上,再将弹性部22连接到主体部21上。相比于弹性部22与主体部21的一体式结构, 非一体式结构需要多增加一道弹性部22与主体部21连接的工序。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.
静电在释放时,会优先从阻抗小的路径释放,因此,为了引导静电经接地弹片20导出,设置接地弹片20的阻抗较小,例如,接地弹片20的接触电阻小于30mΩ,远小于电机30与其他器件(如电路板10、云台的壳体、支架等)的接触电阻,能使得电机30的静电通过接地弹片20的路径导出,避免了静电的无序流动而导致跳电问题。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.
一种实施例中,请参考图2和图3,定子31包括套筒311和缘台312。缘台312突设于套筒311的外周,套筒311围合形成容腔301,以收容转子32。弹性部22与缘台312抵接。套筒311的内壁设有永磁铁,转子32设有线圈,线圈通电,在永磁铁形成的磁场受到磁力而转动。套筒311和缘台312用于安装电机30,即,如图1所示,当电机30设于电路板10一侧时,套筒311和缘台312与云台的壳体或支架等结构连接固定,接地弹片20的主体部21设置在电路板10的靠近边缘的位置,弹性部22延伸到电路板10外侧而与缘台312抵接;如图2所示,当电机30穿设于电路板10时,套筒311和缘台312与电路板10上的卡爪、卡扣等固定件连接。如图2和图3所示,电路板10上开设有通孔,套筒311穿设于通孔,且套筒311的外周面与通孔的内壁不接触。电路板10上设置的卡爪、卡扣等固定件为绝缘材质,套筒311和缘台312为金属等导电材质,套筒311与电路板10的通孔的内壁不接触,避免静电直接通过套筒311和通孔的内壁导到电路板10上,为防止跳电情况发生,套筒311的外周面与通孔的内壁之间的间隔距离为1mm-8mm,优选为5mm-8mm,能避免套筒311的静电跳电到电路板10上,而只能通过接地弹片20导出到电路板10的接地电路11,避免损坏电路板10上的元器件。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.
套筒311呈圆筒状,缘台312设置在套筒311的一端,缘台312形成的平面大致与电路板10平行,套筒311和缘台312上可设置通孔、凹槽等结构,便于与卡爪、卡扣等结构连接固定。套筒311和缘台312与卡爪、卡扣等结构连接,能实现周向和径向的固定。在套筒311的轴向的靠近缘台312的一端还设有轴向固定凸台34,轴向固定凸台34用于与云台的壳体、支架等结构连接固定,实现轴向的固定,从而实现定子31的完全固定。为方便轴向固定凸台34的连接,在轴向固定凸台34的端部还可开设安装孔302,壳体、支架等结构可以伸入安装孔302内,能更方便的实现固定。另外,轴向固定凸台34处还可设外接接口,用于与云台的电源连接。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.
请参考图1至图5,本申请提供一种云台驱动装置的接地弹片20,包括主体部21和弹性部22,弹性部22与主体部21弹性连接,主体部21用于固定至电路板10,弹性部22用于与电机30抵接,电机30用于驱动云台的轴臂转动,所述电机30的静电通过所述接地弹片20导出至所述电路板10上的接地电路11而释放。通过将接地弹片20的主体部21固定至电路板10,弹性部22与电机30抵接,能将电机30的静电导出至电路板10的接地电路11释放,避免了静电无处释放而跳电到电路板10,造成电机30或电路板10损坏。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.
请参考图3至图5,主体部21包括依次连接的底板211、弯板212和端板213。底板211与电路板10紧贴,弯板212呈弯曲状,端板213朝向突出于底板211的方向延伸,弹性部22连接在端板213远离弯板212的一端。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.
具体的,底板211可通过表面贴装工艺贴设在电路板10上。弯板212大致呈中部朝背向电路板10的方向突出的形状,形成一朝向电路板10的弯板槽201,弯板212的一端与 底板211连接,相对的另一端与端板213连接,弯板槽201位于弯板212的两端之间,弯板212与端板213连接的一端在未发生变形时可以与底板211在同一平面,可以与电路板10接触,在发生变形时可以远离电路板10。弯板212与端板213的连接处可以做圆弧过渡处理,以增强结构的强度,避免应力集中。端板213所在的平面大致与底板211所在的平面呈70°-110°的夹角。当弹性部22抵持电机30而受压时,端板213也可产生变形,带动弯板212产生一定的变形,端板213所在的平面与底板211所在的平面的夹角亦可变化。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.
因此,设置底板211、弯板212和端板213的主体部21的结构,底板211能稳定的固定在电路板10上,弯板212和端板213能产生一定的形变,能提供给弹性部22更大的弹性形变空间,满足与不同位置、不同角度等情形下与电机30抵持的要求。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.
弹性部22包括依次连接的连接板221、抵接板222和反弹板223。连接板221与端板213连接,抵接板222沿背向底板211的方向延伸,反弹板223与抵接板222的连接处弯折,反弹板223沿朝向底板211的方向延伸,抵接板222用于与电机30抵接。当抵接板222受到电机30的压力而发生弹性形变时,反弹板223抵持底板211。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.
具体的,连接板221与端板213的连接处也可做圆弧过渡处理,避免应力集中。连接板221在未发生形变时所在的平面可以大致与底板211所在的平面平行。抵接板222与连接板221的连接处可做圆弧过渡处理,避免应力集中,抵接板222所在的平面与连接板221所在的平面形成大约100°-150°的夹角,当抵接部222与电机30抵接而受力时,该夹角还可变化。抵接板222与反弹板223的连接处可做较大角度的圆弧处理,使得抵接板222与反弹板223的整体形成弯折大约180°的形状,使得反弹板223远离抵接板222的一端能够抵持到底板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.
请参考图2和图5,当接地弹片20还未与电机30抵持时,如图5中A所示,抵接板222相对于底板211的倾斜角度较大,抵接板222与反弹板223连接的位置与底板211的距离较远,反弹板223远离抵接板222的一端可以与底板211具有一定的间隔距离。此时接地弹片20为不受力状态,在后续发生弹性形变时,均会具有向此不受力状态时的位置进行变形的趋势。当接地弹片20与电机30抵持时,如图5中B所示,连接板221、抵接板222均朝向底板211的方向移动,反弹板223的远离抵接板222的一端与底板211抵接,提供给抵接板222一反弹力,加上端板213给连接板221的反弹力,使得抵接板222具有向远离底板211移动而返回原位(A所示的位置)的趋势,从而能够使得抵接板222能够始终保持与电机30的抵接,保证静电流动路径的连续和可靠。在连接板221、抵接板222和反弹板223变形时,弯板212和端板212也可发生一定的变形。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.
一种实施例中,反弹板223远离抵接板222的一端连接有防卡板224,防卡板224与反弹板223圆滑过渡,防卡板224用于防止反弹板223抵持底板211时的卡顿。防卡板224与反弹板223的圆滑过渡的连接,使得反弹板223与底板221抵接时,与底板221接触的是防卡板224与反弹板223的圆弧过渡形成的圆弧面,不存在尖锐的端部,圆弧面能够在底板211上自由的移动,避免因卡顿造成反弹板223的结构失稳。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.
其他实施例中,也可不设防卡板224,而是将反弹板223远离抵接板222的一端的端部进行圆滑处理,同时底板211做光滑处理,反弹板223与底板211抵接时也不会卡顿。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.
当抵持板222受到电机30的压力而朝向底板211方向移动时,反弹板223朝向弯板 212方向移动。弯板212的中部的凸起可以起到限制反弹板223继续向端板213方向移动的作用。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.
抵接板222的远离连接板221的端部还可设连接凸起225,连接凸起225突出于抵接板222与反弹板223形成的圆弧过渡的表面,连接凸起225用于与电机30抵接。连接凸起225与电机30抵接,相比于圆弧表面与电机30抵接,缩小了两者接触面积,能使得抵接更可靠。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.
底板211上还设有限位板214,限位板214的数量为两个,分布于弹性部22的两侧,弹性部22发生弹性形变时,弹性部22均在限位板214和底板211围合的空间内运动。限位板214可以起到限位作用,避免弹性部22的形变过大而造成结构失稳。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.
在接地弹片20上还可设减重孔202,减重孔202可位于任意位置,例如如图4所示的位于限位板214上,减重孔202用于减重。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.
请参考图1至图5,结合前述对于形状和结构的描述,本申请还提供一种云台电机静电防护方法,包括: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:
将接地弹片20设于云台驱动装置的电路板10上,并将接地弹片20连接至电路板10上的接地电路11;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;
安装电机30,电机30位于电路板10的一侧或穿设于电路板10,电机30用于驱动云台的轴臂转动;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;
将接地弹片20抵接至电机30,以使电机30的静电通过接地弹片20导出至电路板10上的接地电路11而释放。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.
本申请通过设置接地弹片20,将接地弹片20与电机30抵接,电机30上的静电导出到电路板10的接地电路11,实现电机30的静电释放,避免静电损坏电机30或电路板10,能保证云台的正常运行。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.
其中,将接地弹片20抵接至电机30包括:将接地弹片20抵接至定子31。Wherein, abutting the ground elastic sheet 20 to the motor 30 includes: abutting the ground elastic sheet 20 to the stator 31.
其中,将接地弹片20设于电路板10上包括:将主体部21固定于电路板10,并使弹性部22朝向定子31的方向延伸。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.
其中,主体部21通过表面贴装工艺形成在电路板11上。Among them, the main body 21 is formed on the circuit board 11 through a surface mount process.
其中,弹性部22与主体部21通过一体成型工艺形成一体式结构。Wherein, the elastic portion 22 and the main body portion 21 form an integral structure through an integral molding process.
其中,将接地弹片20抵接至定子31包括:将弹性部22抵接至缘台312。Abutting the ground elastic sheet 20 to the stator 31 includes: abutting the elastic portion 22 to the edge platform 312.
以上对本申请进行了详细介绍,本文中应用了具体个例对本申请的原理及实施例进行了阐述,以上实施例的说明只是用于帮助理解本申请的方法及其核心思想;同时,对于本领域的一般技术人员,依据本申请的思想,在具体实施例及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本申请的限制。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 (18)
- 一种云台电机静电防护方法,其特征在于,包括:A method for preventing static electricity of a pan/tilt motor, which is characterized in that it comprises:将接地弹片设于云台驱动装置的电路板上,并将所述接地弹片连接至所述电路板上的接地电路;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;安装电机,所述电机位于所述电路板的一侧或穿设于所述电路板,所述电机用于驱动所述云台的轴臂转动;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;将所述接地弹片抵接至所述电机,以使所述电机的静电通过所述接地弹片导出至所述电路板上的接地电路而释放。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.
- 如权利要求1所述的云台电机静电防护方法,其特征在于,所述电机包括定子和转子,所述定子围合形成容腔,所述转子收容于所述容腔,并相对所述定子转动,将所述接地弹片抵接至电机包括: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:将所述接地弹片抵接至所述定子。Abut the ground elastic piece to the stator.
- 如权利要求2所述的云台电机静电防护方法,其特征在于,所述接地弹片包括主体部和弹性部,所述弹性部与所述主体部弹性连接,将所述接地弹片设于所述电路板上包括: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:将所述主体部固定于所述电路板,并使所述弹性部朝向所述定子的方向延伸。The main body portion is fixed to the circuit board, and the elastic portion extends toward the stator.
- 如权利要求3所述的云台电机静电防护方法,其特征在于,所述主体部通过表面贴装工艺形成在所述电路板上。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.
- 如权利要求3所述的云台电机静电防护方法,其特征在于,所述弹性部与所述主体部通过一体成型工艺形成一体式结构。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.
- 如权利要求3所述的云台电机静电防护方法,其特征在于,所述定子包括套筒和缘台,所述缘台突设于所述套筒的外周,所述套筒围合形成所述容腔,以***述转子,将所述接地弹片抵接至所述定子包括: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:将所述弹性部抵接至所述缘台。The elastic part is abutted to the edge platform.
- 一种云台驱动装置,其特征在于,包括电路板、接地弹片和电机,所述接地弹片设于所述电路板,且所述接地弹片与所述电路板上的接地电路连接,所述电机设于所述电路板一侧或穿设于所述电路板,所述电机用于驱动所述云台的轴臂转动,所述接地弹片与所述电机抵接。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.
- 如权利要求7所述的云台驱动装置,其特征在于,所述电机包括定子和转子,所述定子围合形成容腔,所述转子收容于所述容腔,并相对所述定子转动,所述接地弹片与所述定子抵接。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.
- 如权利要求8所述的云台驱动装置,其特征在于,所述接地弹片包括主体部和弹性部,所述弹性部与所述主体部弹性连接,所述主体部固定于所述电路板,所述弹性部朝向所述定子的方向延伸。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.
- 如权利要求9所述的云台驱动装置,其特征在于,所述主体部与所述电路板通过表面贴装工艺连接固定。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.
- 如权利要求9所述的云台驱动装置,其特征在于,所述弹性部与所述主体部为一体式结构。9. The pan/tilt driving device according to claim 9, wherein the elastic part and the main body part are an integral structure.
- 如权利要求9所述的云台驱动装置,其特征在于,所述定子包括套筒和缘台,所述缘台突设于所述套筒的外周,所述套筒围合形成所述容腔,以***述转子,所述弹性部与所述缘台抵接。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.
- 一种云台驱动装置的接地弹片,其特征在于,包括主体部和弹性部,所述弹性部与所述主体部弹性连接,所述主体部用于固定至电路板,所述弹性部用于与电机抵接,所述电机用于驱动所述云台的轴臂转动,所述电机的静电通过所述接地弹片导出至所述电路板上的接地电路而释放。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.
- 如权利要求13所述的接地弹片,其特征在于,所述主体部包括依次连接的底板、弯板和端板,所述底板与所述电路板紧贴,所述弯板呈弯曲状,所述端板朝向突出于所述底板的方向延伸,所述弹性部连接在所述端板远离所述弯板的一端。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.
- 如权利要求14所述的接地弹片,其特征在于,所述弹性部包括依次连接的连接板、抵接板和反弹板,所述连接板与所述端板连接,所述抵接板沿背向所述底板的方向延伸,所述反弹板与所述抵接板的连接处弯折,所述反弹板沿朝向所述底板的方向延伸,所述抵接板用于与所述电机抵接,当所述抵接板受到所述电机的压力而发生弹性形变时,所述反弹板抵持所述底板。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.
- 如权利要求15所述的接地弹片,其特征在于,所述反弹板远离所述抵接板的一端连接有防卡板,所述防卡板与所述反弹板圆滑过渡,所述防卡板用于防止所述反弹板抵持所述底板时的卡顿。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.
- 如权利要求15所述的接地弹片,其特征在于,当所述抵持板受到所述电机的压力而朝向所述底板方向移动时,所述反弹板朝向所述弯板方向移动。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.
- 如权利要求14-17任一项所述的接地弹片,其特征在于,所述底板上还设有限位板,所述限位板位于所述弹性部的两侧,所述弹性部发生弹性形变时,所述弹性部均在所 述限位板和所述底板围合的空间内运动。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.
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