CN108595021B

CN108595021B - Motion sensing structure and motion device using same

Info

Publication number: CN108595021B
Application number: CN201810381898.XA
Authority: CN
Inventors: 熊荣明; 唐尹
Original assignee: SZ DJI Technology Co Ltd
Current assignee: SZ DJI Technology Co Ltd
Priority date: 2015-08-10
Filing date: 2015-08-10
Publication date: 2021-06-08
Anticipated expiration: 2035-08-10
Also published as: CN108595021A; CN105094376A; CN105094376B

Abstract

The invention relates to an action sensing structure for sensing operation actions of a user, which comprises a shell, an operating part, a sensing element and a circuit board, wherein the operating part, the sensing element and the circuit board are installed in the shell. The circuit board is provided with a sensing circuit pattern. The sensing element is electrically connected with the sensing circuit pattern. The operating piece drives the sensing element and the circuit board to move relatively so as to change the electrical quantity output of the circuit board. The invention also relates to a motion device using the motion sensing structure.

Description

Motion sensing structure and motion device using same

Technical Field

The invention relates to an action sensing structure and a motion device using the same.

Background

The conventional rocker structure generally includes a plurality of sensing shafts rotating in different directions, and senses an operation motion by providing a potentiometer at an end of the sensing shaft. However, the volume of the potentiometer is generally large and the assembly is complicated, so that the whole motion sensing structure is large in volume and high in assembly difficulty.

Disclosure of Invention

In view of the above, it is desirable to provide a motion sensing structure with simple structure and convenient assembly.

An action sensing structure for sensing the operation action of a user comprises a shell, an operating part, a sensing element and a circuit board, wherein the operating part, the sensing element and the circuit board are installed in the shell. The circuit board is provided with a sensing circuit pattern. The sensing element is electrically connected with the sensing circuit pattern. The operating piece drives the sensing element and the circuit board to move relatively so as to change the electrical quantity output of the circuit board.

A motion device comprises a power source, a controller and an action sensing structure. The power source provides power required by movement for the moving device. The controller is coupled to the power source to convert power provided by the power source into actual motion of the motion device. The motion sensing structure is connected with the motion conversion mechanism to sense the operation motion of a user so as to control the controller to operate the motion direction of the motion device. The action sensing structure comprises a shell, an operating part, a sensing element and a circuit board, wherein the operating part, the sensing element and the circuit board are installed in the shell. The circuit board is provided with a sensing circuit pattern. The sensing element is electrically connected with the sensing circuit pattern. The operating piece drives the sensing element and the circuit board to move relatively so as to change the electrical quantity output of the circuit board.

Compared with the prior art, the motion sensing structure and the motion device using the motion sensing structure are provided with the sensing contact piece and the corresponding sensing circuit board at the tail end of the sensing shaft to realize motion sensing. The sensing circuit board is light and thin, so that the whole motion sensing structure is simple and compact, and the circuit board is easy to fix and assemble.

Drawings

Fig. 1 is a functional block diagram of a sports apparatus according to an embodiment of the present invention.

Fig. 2 is a top view of a motion sensing structure according to an embodiment of the invention.

Fig. 3 is a top view of the internal structure of the motion sensing structure of fig. 2 with the housing removed.

Fig. 4 is an exploded view of the motion sensing structure shown in fig. 2.

Fig. 5 is a cross-sectional view of the motion sensing structure of fig. 2 taken along line V-V.

Description of the main elements

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the exercise device 1 according to the embodiment of the present invention includes a power source 10, a controller 20, and a motion sensing structure 30. The power source 10 is used to provide the motive power required for the movement of the moving means 1. The power source 10 may be, but is not limited to, an electric motor, an engine. The controller 20 is connected to the power source 10 for converting the power provided by the power source 10 into the actual motion of the motion device 1. The motion sensing structure 30 is connected to the controller 20 for sensing an operation motion of a user to manipulate the motion direction of the motion device 1 through the controller 20. The movement device 1 may be, but is not limited to, an unmanned aerial vehicle, a manned vehicle, an automobile, an electric vehicle, a model airplane, a toy. Furthermore, the motion sensing structure 30 should also be a gamepad for game play.

Referring to fig. 2 to 4, the motion sensing structure 30 includes a housing 300, and an operating element 36, a sensing element 37 and a circuit board 38 installed in the housing 300. The circuit board 38 is provided with a sensing circuit pattern 331. The sensing element 37 is electrically connected to the sensing circuit pattern 331. The operating member 36 drives the sensing element 37 to rotate relative to the circuit board 38 to change the electrical output of the circuit board 38.

It is understood that the housing 300 may be omitted and the remaining mating components may be disposed directly within the corresponding electronic device.

In the present embodiment, the operating member 36 includes a first sensing shaft 310 that rotates in a first direction, a second sensing shaft 320 that rotates in a second direction, and a rocker 350. The circuit board 38 includes a first circuit board 330 disposed corresponding to one end of the first sensing shaft 310 and a second circuit board 340 disposed corresponding to one end of the second sensing shaft 320. The first sensing shaft 310 is connected to the rocker 350 and rotates in a first direction under the driving of the rocker 350. The second sensing shaft 320 is connected to the rocker 350 and rotates around the second direction under the driving of the rocker 350. The sensing element 37 includes a first sensing element 312 disposed on an end portion of the first sensing shaft 310 corresponding to the first circuit board 330 and a second sensing element 322 disposed on an end portion of the second sensing shaft 320 corresponding to the second circuit board 340. The first sensing shaft 310 is slidably and electrically connected to the first circuit board 330 via the first sensing element 312. The second sensing shaft 320 is slidably and electrically connected to the second circuit board 340 via the second sensing element 322. The first circuit board 330 senses a motion component of the rocker 350 rotating about the first direction through the first sensing shaft 310. The second circuit board 340 senses a motion component of the rocker 350 rotating about the second direction through the second sensing shaft 320. In this embodiment, the first direction is perpendicular to the second direction.

It is understood that the first sensing element 312 may be disposed at both ends of the first sensing shaft 310, and accordingly, the first circuit board 330 to which the first sensing element 312 is electrically connected may be disposed at both ends; similarly, the second sensing element 322 and the second circuit board 340 may be disposed at both ends of the second sensing shaft 320. In addition, a first circuit board 330 may be disposed on the first sensing shaft 310, such that the first circuit board 330 abuts against the first sensing element 312; this scheme is equally applicable to the second sensing shaft 320 and the second circuit board 340 and the second sensing element 322.

The first sensing shaft 310 includes a first rotating shaft 313, a first sensing portion 314 and a first connecting portion 315. The first rotating shaft 313 is an elongated column. The direction in which the first rotating shaft 313 extends is defined as a length direction of the first rotating shaft 313. The first sensing portion 314 is disposed at an end of the first rotating shaft 313 far from the first connecting portion 315. Preferably, the first sensing portion 314 is a flat plate substantially perpendicular to the length direction of the first rotating shaft 313. In the present embodiment, the first sensing portion 314 has a substantially fan shape.

The first connection portion 315 is provided at a position between opposite end portions of the first rotating shaft 313 in the longitudinal direction thereof. The first connecting portion 315 has a connecting groove 316 extending along the length of the first rotating shaft 313. The first connecting portion 315 defines a pivoting direction perpendicular to the length direction of the first rotating shaft 313. The connecting slot 316 has two connecting through holes 317 respectively formed along two opposite sidewalls of the pivoting direction. The pair of connecting through holes 317 are coaxially arranged along the pivoting direction. The connecting slot 316 is open at the top end of the first connecting portion 315 and forms an opening 318 at the top end. The pair of connecting through holes 317 respectively form a passage 319 penetrating to the opening 318 at a side near the top end of the first connecting portion 315. The diameter of the passage 319 is smaller than the diameter of the corresponding connecting through-hole 317. In the present embodiment, the first connecting portion 315 is substantially spherical, and a part of a spherical cap is cut off at the top end and two sidewalls forming the connecting through hole 317.

The first sensing element 312 is disposed on a side surface of the first sensing portion 314 away from the first rotating shaft 313. The first sensing element 312 is made of a conductive material. The first sensing element 312 includes a connecting body 3120 and a conductive contact 3122 extending from the connecting body 3120. The connecting body 3120 is provided with at least two contact through holes 3123 parallel to each other. Each contact through hole 3123 extends from the conductive contact 3122 on the same side along the length direction thereof. The connecting body 3120 includes a connecting projection 3124 extending from an edge thereof. The first sensing piece is fixedly coupled to the first sensing portion 314 by the coupling protrusion 3124. In the present embodiment, the first sensing element 312 maintains the contact through hole 3123 perpendicular to the radius of the fan-shaped first sensing portion 314 when connected to the first sensing portion 314.

The second sensing shaft 320 includes a second rotating shaft 323, a second connecting portion 324, and a second sensing portion 325. The direction in which the second connection portion 324 extends is defined as the length direction of the second connection portion 324. The second shaft 323 extends outwardly from opposite ends of the second connecting portion 324 along the length direction thereof. The second connecting portion 324 is formed with an assembling through hole 326 along a length direction thereof. In the present embodiment, the second connecting portion 324 has a circular arch shape so as to cross over the first sensing shaft 310 when assembled.

The second sensing portion 325 is connected to one end of one of the second rotating shafts 323 away from the second connecting portion 324. The second sensing part 325 has substantially the same structure and shape as the first sensing part 314. In the present embodiment, the second sensing portion 325 is a fan-shaped flat plate perpendicular to the length direction of the second connecting portion 324.

The second sensing element 322 is disposed on a side surface of the second sensing portion 325 away from the second rotation shaft 323. The second sensing element 322 has substantially the same structure, material and shape as the first sensing element 312, and is not repeated herein.

The rocker 350 includes a rotating portion 351 and a handle 352. The rotating portion 351 includes a body 353 and a pair of rotating protrusions 354 extending from opposite sides of the body 353 along the same axis in opposite directions. In this embodiment, the main body 353 is a cylinder, and the pair of rotating protrusions 354 extend from the centers of the upper bottom surface and the lower bottom surface of the cylinder respectively along the central axis of the cylinder. The handle 352 extends from the body 353 in a direction perpendicular to the axis of the rotary projection 354. In this embodiment, the handle 352 is a cylindrical body extending from a side surface of the cylindrical body 353 in a radial direction thereof.

The first circuit board 330 includes a sensing circuit pattern 331 and a lead-out terminal 332. The conductive contact 3122 of the first sensing element 312 is slidably and elastically contacted with the sensing circuit pattern 331 to change an electrical quantity of the sensing circuit pattern 331 with a rotation angle of the first sensing shaft 310. The lead terminal 332 is connected to the sensing circuit pattern 331, and is used for leading out the change of the electrical quantity of the sensing circuit pattern 331 caused by the rotation of the first sensing shaft 310.

The sensing circuit pattern 331 includes a resistance part 333 and a conductive part 334. The resistor 333 and the conductive part 334 are connected to the conductive terminal through a sensing circuit disposed inside the circuit board to derive a sensing signal. In the present embodiment, the resistance part 333 and the conductive part 334 are two semicircular arcs around the same center. The radius of the resistance part 333 is larger than that of the conductive part 334. The resistor 333 is a carbon brush. The conductive portion 334 is a conductive film.

It is understood that the first sensing element 312 and the first circuit board 330 can move relatively to each other, and likewise, the second sensing element 322 and the second circuit board 340 can move relatively to each other. Accordingly, the structure of the resistance part 333 and the conductive part 334 may be a strip-like structure arranged in parallel or other structures.

The structure, material and shape of the second circuit board 340 are substantially the same as those of the first circuit board 330, and are not described herein again.

The housing 300 includes a top surface 301 and a side surface 302 extending from an edge of the top surface 301. The top surface 301 and the side surface 302 form a receiving space for receiving the first sensing shaft 310, the second sensing shaft 320, the first circuit board 330, the second circuit board 340 and the joystick 350. The top surface 301 is formed with an operation through hole 303 to expose the rocker 350. The inner side of the top surface 301 extends at the edge of the operational through hole 303 with an inner wall 304 corresponding to the side surface 302. The inner wall 304 and the corresponding side surface 302 are respectively provided with a mounting through hole for mounting the first sensing shaft 310 and the second sensing shaft 320. In this embodiment, the housing 300 includes a first side 305 and a corresponding first inner wall 306 for rotatably mounting the first sensing shaft 310 and a second side 307 and a corresponding second inner wall 308 for rotatably mounting the second sensing shaft 320.

Referring to fig. 2, 4 and 5, during assembly, the main body 353 of the rocker 350 is snapped into the connecting slot 316 and is rotatably connected to the connecting through holes 317 on both sides of the first connecting portion 315 through a pair of rotating protrusions 354. The rocker 350 can rotate in the connecting groove 316 around the pivot rotation direction of the central axis of the connecting through hole 317. When the rocker 350 has a motion component rotating around the first sensing shaft 310, the diameter of the channel 319 penetrating through the connecting through hole 317 to the opening 318 of the connecting groove 316 is smaller than that of the connecting through hole 317, so that the rotating protrusion 354 cannot be disengaged from the channel 319 to drive the whole first sensing shaft 310 to rotate around the first direction.

The second sensing shaft 320 is fitted over the rocker 350, and the handle 352 of the rocker 350 is passed through the assembly through hole 326 of the second connecting portion 324. When the rocker 350 has a motion component rotating around the pivot rotation direction of the central axis of the connecting through hole 317, the rocker 350 abuts against the edge of the assembling through hole 326 to drive the second sensing shaft 320 to rotate around the second direction.

It is understood that the rocker 350 may be disposed on other elements and the rocker 350 may extend through the first sensing shaft 310 and the second sensing shaft 320 to control the movement of the first sensing shaft 310 and the second sensing shaft 320.

The first sensing shaft 310 is not driven to rotate by the rotational component of the rocker 350 around the central axis of the connecting through hole 317, and the second sensing shaft 320 is not driven to rotate by the rocker 350 moving along the extending direction of the assembling through hole 326 when rotating around the first sensing shaft 310. Therefore, the motion sensing structure 30 senses the motion components of the rocker 350 rotating around different directions independently and independently.

The first sensing shaft 310 is rotatably disposed on a first side surface and a corresponding first inner wall of the housing 300 along a first direction. The second sensing shaft 320 is rotatably disposed on a second side surface and a corresponding second inner wall of the housing 300 along a second direction. The rocker 350 is inserted through the operation through hole 303 of the housing 300.

The first circuit board 330 is fixed to a side edge of the top surface 301 away from the first side surface. The side of the first circuit board 330 on which the sensing circuit pattern 331 is formed faces the inside of the housing 300. The first sensing element 312 disposed on the end surface of the first sensing portion 314 is in sliding electrical contact with the sensing circuit pattern 331 on the first circuit board 330 to sense the rotation angle of the first sensing shaft 310 driven by the rocker 350. The second circuit board 340 is fixed to the edge of the side of the top surface 301 remote from the second side surface. The first sensing element 312 disposed on the end surface of the first sensing portion 314 is in sliding electrical contact with the sensing circuit pattern 331 on the first circuit board 330 to sense the rotation angle of the second sensing shaft 320 driven by the rocker 350.

In the present embodiment, the second connecting portion 324 has a circular arch shape. The second sensing shaft 320 is fitted over the rocker 350 through an assembly through-hole 326. The spherical first connecting portion 315 is received in the space below the dome-shaped second connecting portion 324 to make the whole motion sensing structure 30 more compact.

The motion sensing structure 30 and the motion device 1 using the motion sensing structure 30 have sensing pads and corresponding circuit boards at the end of the sensing shaft to realize motion sensing. The circuit board is thin and light, so the whole motion sensing structure 30 is simple and compact, and the circuit board is easy to fix and assemble.

It is understood that only the first sensing shaft 310, the first sensing element 312 and the first circuit board 330 may be included for controlling the movement in one direction. Of course, control structures of three or more directions may be included for controlling movement in multiple directions.

Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An action sensing structure is used for sensing operation actions of a user and comprises a shell, an operating part, a sensing element and a circuit board, wherein the operating part, the sensing element and the circuit board are installed in the shell, a sensing circuit pattern is arranged on the circuit board, the sensing element is electrically connected with the sensing circuit pattern, the operating part drives the sensing element and the circuit board to rotate relatively to change the electrical quantity output of the circuit board, the sensing circuit pattern comprises a resistance part and a conductive part, the sensing element comprises at least two conductive contacts, and the conductive contacts are respectively in sliding contact with the resistance part and the conductive part to conduct the resistance part and the conductive part mutually.

2. The motion sensing structure of claim 1, wherein: the resistance part and the conductive part are two sections of semi-arcs surrounding the same circle center, and the radius of the resistance part is larger than that of the conductive part.

3. The motion sensing structure of claim 2, wherein: the resistance part is a carbon brush, and the conductive part is a conductive film.

4. The motion sensing structure of claim 1, wherein: the sensing element comprises a connecting body and at least two conductive contacts protruding from the connecting body, and the conductive contacts elastically abut against the circuit board.

5. The motion sensing structure of claim 1, wherein: the sensing element and the circuit board can rotate relatively under the driving of the operating piece.

6. The motion sensing structure of claim 1, wherein: the circuit board further includes a lead-out terminal connected to the sensing circuit pattern, the sensing element rotates relative to the sensing circuit pattern to change an electrical quantity of the sensing circuit pattern, and the lead-out terminal leads out a change in the electrical quantity caused by the relative rotation.

7. The motion sensing structure of any one of claims 1-6, wherein: the operating piece comprises a rocker and at least one sensing shaft connected with the rocker, the sensing element and the circuit board are arranged at least one end of the sensing shaft, and the rocker drives the sensing shaft to rotate, so that the sensing element and the circuit board are driven to rotate relatively.

8. The motion sensing structure of claim 7, wherein: the operating piece comprises a rocker, a first sensing shaft rotating around a first direction and a second sensing shaft rotating around a second direction, the motion sensing structure further comprises a first sensing element and a first circuit board arranged corresponding to at least one end of the first sensing shaft, a second sensing element and a second circuit board arranged corresponding to at least one end of the second sensing shaft, the first sensing shaft is connected with the rocker and rotates around a first direction under the drive of the rocker, the second sensing shaft is connected with the rocker and rotates around a second direction under the drive of the rocker, the first sensing shaft drives the first sensing element and the first circuit board to relatively rotate, the second sensing shaft drives the second sensing element and the second circuit board to relatively rotate, the first circuit board senses the motion component of the rocker rotating around the first direction through the first sensing shaft, and the second circuit board senses the motion component of the rocker rotating around the second direction through the second sensing shaft.

9. The motion sensing structure of claim 8, wherein: the first sensing element is arranged at least one end of the first sensing shaft and electrically connected with the first circuit board, and the second sensing element is arranged at least one end of the second sensing shaft and electrically connected with the second circuit board.

10. The motion sensing structure of claim 8 or 9, wherein: the first sensing axis and the second sensing axis are arranged in a crossed manner.

11. The motion sensing structure of claim 10, wherein: the first sensing shaft comprises a first rotating shaft, a first sensing part and a first connecting part, and the rocker drives the first sensing shaft to rotate through the first connecting part.

12. The motion sensing structure of claim 11, wherein: the extending direction of the first rotating shaft is defined as the length direction of the first rotating shaft, the first sensing part is arranged at one end of the first rotating shaft, the first sensing element is arranged on the first sensing part, and the first connecting part is arranged between two opposite ends of the first rotating shaft along the length direction of the first rotating shaft.

13. The motion sensing structure of claim 11 or 12, wherein: the rocker is connected with the first connecting part.

14. The motion sensing structure of claim 13, wherein: the rocker is movably connected with the first connecting part.

15. The motion sensing structure of claim 14, wherein: the rocker comprises a rotating part and a handle, the rotating part extends out of a pair of rotating protrusions along the same axis in opposite directions, the rotating protrusions are respectively rotatably connected into the connecting through holes, and the handle extends out of the connecting through holes along the direction perpendicular to the axis where the rotating protrusions are located.

16. The motion sensing structure of claim 12, wherein: the rocker drives the second sensing shaft to rotate through the second sensing part.

17. The motion sensing structure of claim 16, wherein: the extending direction of the second connecting part is defined as the length direction of the second connecting part, the second rotating shaft extends outwards from the two opposite ends of the second connecting part along the length direction of the second rotating shaft, an assembling through hole is formed in the second connecting part along the length direction of the second rotating shaft, and a handle of the rocker penetrates through the assembling through hole in the second connecting part to enable the second sensing shaft to be sleeved on the rocker.

18. The motion sensing structure of claim 17, wherein: the second connecting part is in a circular arch shape, and the first connecting part is accommodated in a space below the circular arch-shaped second connecting part.

19. A motion device comprising a power source for supplying power required for motion to the motion device, a controller connected to the power source to convert the power supplied from the power source into actual motion of the motion device, and a motion sensing structure as claimed in any one of claims 1 to 6, 8, 9, 11, 12, 14 to 18 connected to a motion converting mechanism to sense an operation motion of a user to control the controller to manipulate the motion direction of the motion device.