CN217961289U

CN217961289U - Plane movement position detection device and input device

Info

Publication number: CN217961289U
Application number: CN202222061507.0U
Authority: CN
Inventors: 杜修富
Original assignee: Quanzhou Kuntaixin Microelectronic Technology Co ltd
Current assignee: Quanzhou Kuntaixin Microelectronic Technology Co ltd
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2022-12-06
Anticipated expiration: 2032-08-05

Abstract

The utility model relates to a magnetic sensor's application, a plane shift position detection device and input device are provided, input device includes the handle and the utility model discloses a plane shift position detection device, plane shift position detection device include base member, translation unit, automatically controlled unit and cyclic annular elastic component, the translation unit is restricted to can move along the two-dimentional plane direction perpendicular to first direction relative to the base member, the translation unit includes the magnet, the automatically controlled unit includes the magnetic sensor who sets firmly in the base member, the automatically controlled unit detects the position of translation unit through the magnetic sensor response magnet; the base body comprises a limiting boss, and the limiting boss and the connecting plate are distributed along a first direction; the annular elastic piece is sleeved on the limiting boss and the outer peripheral wall of the connecting plate, and the annular elastic piece can be deformed along a two-dimensional plane direction perpendicular to the first direction in response to the movement of the connecting plate. The utility model has the advantages of simple structure to it is accurate to plane shift position's testing result.

Description

Plane movement position detection device and input device

Technical Field

The utility model relates to a magnetic sensor's application, concretely relates to plane shift position detection device and input device.

Background

Chinese utility model patent with publication number CN207507014U adopts the cooperation of magnetic sensor and magnet to detect the plane shift position of rocker, however, the spare part quantity of this scheme reset assembly is more, and the structure is comparatively complicated, and the setting of this scheme reset assembly (return structure/return structure) still leads to the length of action bars subassembly longer, if the action bars subassembly has the beat slightly, the position of magnet will take place the skew of great degree, lead to this scheme be difficult to come the accurate position that detects out the action bars subassembly according to the testing result of magnetic sensor.

SUMMERY OF THE UTILITY MODEL

One of the purposes of the present invention is to overcome the above-mentioned defects of the prior art, and to provide a plane moving position detection device with simple structure and favorable for improving the accuracy of the return position and the accuracy of the detection result.

The utility model provides a plane shift position detection device includes base member, translation unit and electrical control unit, and the translation unit is restricted to the relative base member and moves along the two-dimensional plane direction perpendicular to first direction, and the translation unit includes the magnet, and the electrical control unit includes the magnetic sensor who sets firmly in the base member, and the electrical control unit detects the position of translation unit through the magnetic sensor response magnet; the base body comprises a first split body and a second split body which are fixedly connected with each other, the first split body and the second split body are distributed along a first direction, and an installation space is formed between the first split body and the second split body; the translation unit further comprises a connecting plate, the normal of the main surface of the connecting plate is along a first direction, at least one of the first split body and the second split body is provided with a limiting boss facing the installation space along the first direction, and the limiting boss and the connecting plate are distributed along the first direction; the plane moving position detection device further comprises an annular elastic piece, the annular elastic piece is limited in the installation space and sleeved on the outer peripheral walls of the limiting boss and the connecting plate, the limiting boss and the connecting plate are abutted against the inner side wall of the annular elastic piece, and the annular elastic piece can be deformed along the two-dimensional plane direction perpendicular to the first direction in response to the movement of the connecting plate.

The utility model discloses when the translation unit moves along the two-dimensional plane direction under the exogenic action, cyclic annular elastic component warp along the two-dimensional plane direction in response to the motion of connecting plate to, when the exogenic force that is used for the control handle cancels, the translation unit is to the free state return under the elastic action of cyclic annular elastic component. Therefore, the utility model discloses not only return structure (cyclic annular elastic component) is simple, moreover because return structure is simple to and because cyclic annular elastic component and connecting plate are located the same position along the first direction of translation unit, therefore the setting of cyclic annular elastic component can not lead to the size increase of translation unit on the first direction, is favorable to shortening the length of translation unit, is favorable to promoting the utility model discloses detect the accuracy of translation unit position.

In addition, more importantly, because the periphery wall of connecting plate and spacing boss all with the intra-annular lateral wall butt of cyclic annular elastic component, the return position of cyclic annular elastic component can receive the spacing of spacing boss, therefore even if cyclic annular elastic component leads to elasticity to descend a little because of fatigue after long-term use, the return position of cyclic annular elastic component still accurately stabilizes in the periphery of spacing boss, and this makes the return position of connecting plate accurate for translation unit is stable accurate in the return position under free state.

Preferably, the annular elastic member is slidably engaged with the first body and the annular elastic member is slidably engaged with the second body.

Therefore, the stability of the deformation motion rule of the annular elastic part is improved.

Another preferred scheme is that the limiting boss is in sliding fit with the connecting plate; the limiting boss comprises a first boss arranged on the first split body and a second boss arranged on the second split body, the first boss is opposite to the second boss along the first direction, and the connecting plate is located between the first boss and the second boss.

Therefore, the stability of the motion law of the translation unit is improved, the stress balance of the annular elastic part is improved, and the stability of the motion law of the annular elastic part in deformation is further improved.

According to a further scheme, the electric control unit is located on one side, back to the second split body, of the first split body along the first direction, and the first split body separates the electric control unit from the translation unit.

Therefore, lubricating oil and the like at the translation unit can be prevented from leaking to the electric control unit, and the long-term normal function of the electric control unit can be ensured.

The first boss is disc-shaped, a groove is formed in one side wall surface of the first split body, which is back to the second split body, the groove is opposite to the first boss along the first direction, and the magnetic sensor is located in the groove.

From top to bottom, on the one hand like this, the recess is adaptable to the setting of first boss and the nature forms, not only can not influence the structural strength of first branch body in the groove, and be favorable to the material thickness of the first branch body of attenuate in first boss department, be favorable to save material and alleviate material weight, on the other hand, this distance that also is favorable to shortening magnetic sensor and magnet is favorable to strengthening the magnetic field signal of magnetic sensor department, is favorable to enlarging the motion range of the magnet that magnetic sensor can detect, and then is favorable to enlarging the utility model discloses the motion range of translation unit.

Still another preferred scheme is that the first sub-body is located below the second sub-body, the first sub-body comprises a bottom plate and a side plate, the side plate extends from the bottom plate to the second sub-body, the side plate and the bottom plate form a groove-shaped structure with an upward opening, and the second sub-body covers the opening of the groove-shaped structure.

As can be seen, this further helps to prevent the lubricant oil at the translation unit from intruding into the electronic control unit.

In a further preferred embodiment, the cross-sectional outer contour of the normal line of the connecting plate along the first direction is circular; the normal line of the limiting bosses is circular in section along the first direction, or the number of the limiting bosses is at least two, and the limiting bosses are distributed along the direction of a circular ring; when the plane movement position detection device is in a free state, the central line of the limiting boss coincides with the central line of the connecting plate.

Therefore, the centering position of the translation unit is further ensured to be accurate.

It is also preferable that the magnetic sensor includes a hall sensor or a magnetoresistive sensor; when the planar-motion position detection device is in a free state, the magnetic sensor and the magnet face each other in the first direction.

The second purpose of the present invention is to overcome the above-mentioned defects of the prior art, and to provide an input device with simple structure and which is favorable for improving the accuracy of the detection result.

The utility model provides an input device, including control handle and the aforesaid plane shift position detection device, the second components of a whole that can function independently have and link up to installation space's handle hole along the first direction, the control handle pass the handle hole and with connecting plate fixed connection, the control handle reveals outside the base.

It is preferable that a normal line of the operation hole has a circular cross-sectional profile shape in the first direction, and the manipulation knob is held at a center line of the operation hole when the input apparatus is in a free state.

Drawings

Fig. 1 is a perspective cross-sectional view of an embodiment of the input device of the present invention.

Fig. 2 is a partial enlarged view of fig. 1 at a.

Fig. 3 is an exploded view of an embodiment of the input device of the present invention.

Detailed Description

Fig. 1 to fig. 3 of this embodiment adopt a unified spatial rectangular coordinate system (right-hand system) to assist in describing the relative orientation relationship of the components, where the Z-axis direction is the first direction, and the Z-axis forward direction is vertically upward.

Referring to fig. 1 to fig. 3, the input device of the present embodiment may be, for example, a remote controller of an unmanned aerial vehicle or a handle of an electronic game, and the input device of the present embodiment includes a control handle 1000 and a plane movement position detection apparatus 2000 of the present embodiment.

The plane movement position detection device 2000 of the present embodiment includes a base body 1, a translation unit 2, an electric control unit 3, and a ring-shaped tension spring 4 (an example of a ring-shaped elastic member), and the translation unit 2 is restricted to be movable in a two-dimensional plane direction (XOY plane direction) perpendicular to the Z-axis direction with respect to the base body 1.

The base body 1 includes a base 11 (an example of a first split body) and an upper cover 12 (an example of a second split body) fixedly connected with each other, the base 11 has a bottom plate 111 and a side plate 112, the side plate 112 is annular and extends from the bottom plate 111 to a Z-axis positive direction, the bottom plate 111 and the side plate 112 are combined to form a groove-shaped structure with an opening facing the Z-axis positive direction, the upper cover 12 covers the opening of the base 11, an installation space 13 is enclosed by the bottom plate 111, the side plate 112 and the upper cover 12, the upper cover 12 has an operation hole 121 penetrating through the installation space 13 along the Z-axis direction, and a normal line of the operation hole 121 has a circular cross-sectional profile along the Z-axis direction.

The Z-axis positive side wall of the bottom plate 111 is provided with a first boss 1111 protruding towards the Z-axis positive direction, the first boss 1111 is disc-shaped, the Z-axis negative side wall of the upper cover 12 is provided with a second boss 122 protruding towards the Z-axis negative direction, the second boss 122 is ring-shaped, the center line of the first boss 1111, the center line of the second boss 122, the center line of the operation hole 121 and the center line of the side plate 112 are overlapped, the second boss 122 is opposite to the outer edge of the first boss 1111 along the Z-axis positive direction, and the first boss 1111 and the second boss 122 are both positioned on the inner side of the ring of the side plate 112; alternatively, in other embodiments of the present invention, the first boss 1111 may also be configured as a ring, and the second boss 122 may also be configured as a plurality of independent bosses distributed along the ring path.

The first boss 1111 and the second boss 122 of the present embodiment are both examples of limiting bosses.

The translation unit 2 includes a connection plate 21 and a magnet 22, the connection plate 21 is a circular plate whose main surface normal is along the Z-axis direction, the connection plate 21 is located between the first boss 1111 and the second boss 122, the connection plate 21 is in sliding fit with the first boss 1111, and the connection plate 21 is in sliding fit with the second boss 122.

The annular tension spring 4 is located in the installation space 13 between the upper cover 12 and the base 11, a normal line of a Z-axis positive side wall surface of the bottom plate 111 is along a Z-axis direction, the annular tension spring 4 is in sliding fit with the Z-axis positive side wall of the bottom plate 111, a normal line of a Z-axis negative side wall surface of the upper cover 12 is along the Z-axis direction, and the annular tension spring 4 is in sliding fit with the Z-axis negative side wall of the upper cover 12.

The operation handle 1000 is inserted into the operation hole 121, a Z-axis positive end of the operation handle 1000 is exposed out of the base 1, a Z-axis negative end of the operation handle 1000 is fixedly connected with the connecting plate 21, a Z-axis positive side wall of the connecting plate 21 is provided with a first fixing portion 211 protruding towards the Z-axis positive direction, the first fixing portion 211 is cylindrical, a center line of the first fixing portion 211 coincides with a center line of the connecting plate 21, the magnet 22 is cylindrical, the magnet 22 is fixedly embedded in a cylindrical cavity of the first fixing portion 211, the operation handle 1000 is provided with a second fixing portion 1001, the second fixing portion 1001 is cylindrical, and an inner peripheral wall of the second fixing portion 1001 is in threaded connection with an outer peripheral wall of the first fixing portion 211.

The electric control unit 3 comprises a circuit board 31 and a magnetic sensor 32, wherein a normal line of a main surface of the circuit board 31 is along a Z-axis direction, the circuit board 31 is fixedly connected with the base 11, the magnetic sensor 32 is fixedly arranged on a positive side wall of the Z-axis of the circuit board 31, the magnetic sensor 32 is arranged on a negative side of the Z-axis of the magnet 22, a central line of the first boss 1111 penetrates through the magnetic sensor 32, and the electric control unit 3 detects the position of the translation unit 2 in a mode that the magnetic sensor 32 senses the magnet 22.

Specifically, the magnetic sensor 32 may be, for example, a hall sensor, or a tunnel magnetoresistive sensor, a giant magnetoresistive sensor, or the like.

When the user pulls the lever 1000 to force the translation unit 2 to move in the XOY plane direction, the ring-shaped tension spring 4 deforms in the XOY plane direction in response to the movement of the link plate, and when the user releases the lever 1000, the translation unit 2 is returned to the free state by the elastic force of the ring-shaped tension spring 4.

In this embodiment, the peripheral walls of the connecting plate 21, the first boss 1111 and the second boss 122 are abutted to the inner side wall of the ring-shaped tension spring 4, and the return position of the ring-shaped tension spring 4 is limited by the first boss 1111 and the second boss 122, so that even if the ring-shaped tension spring 4 is used for a long time, due to fatigue, the elastic force is slightly reduced, the return position of the ring-shaped tension spring 4 is still accurately stabilized on the peripheries of the first boss 1111 and the second boss 122, which makes the return position of the connecting plate 21 accurate, and makes the return position of the translation unit 2 in the free state stable and accurate.

Moreover, since the connection plate 21 is simultaneously in sliding fit with the first boss 1111 and the second boss 122, and since the ring-shaped tension spring 4 is limited to be simultaneously in sliding fit with the upper cover 12 and the base 11, it is beneficial to ensure that the translation unit 2 moves stably, and the ring-shaped tension spring 4 deforms stably, and the inner side wall of the ring-shaped tension spring 4 is not easily separated from the outer peripheral wall of the connection plate 21 to abut against the outer peripheral wall, thereby being beneficial to ensuring that the input device of the present embodiment is stably used for a long time.

In addition, since the present embodiment can drive the translation unit 2 to accurately return in the planar movement only by disposing the ring-shaped tension spring 4 at the connecting plate 21, the return structure of the present embodiment is simple, and is beneficial to shortening the overall length of the control handle 1000 and the translation unit 2, and is beneficial to improving the accuracy of the present embodiment in detecting the positions of the control handle 1000 and the translation unit 2.

In addition, because the base 11 is designed to be in the groove-shaped structure in the embodiment, the lubricating oil between the base 11 and the translation unit 2 is not easy to leak to the electric control unit 3, which is beneficial to avoiding the electric control unit 3 from being polluted by the lubricating oil and the like, and is beneficial to ensuring the long-term normal function of the electric control unit 3.

Preferably, the magnet 22 is directly opposite the magnetic sensor 32 in the Z-axis direction when the input device is in the free state. More preferably, the groove 1112 is disposed on the Z-axis negative side wall of the bottom plate 111 at a position corresponding to the first boss 1111, and the magnetic sensor 32 is disposed in the groove 1112, so on one hand, the groove 1112 can be formed naturally in accordance with the arrangement of the first boss 1111, which not only does not affect the structural strength of the bottom plate 111 at the groove 1112, but also facilitates to reduce the material thickness of the bottom plate 111 at the first boss 1111, which is favorable to save material and reduce material weight, and on the other hand, which is favorable to shorten the distance between the magnetic sensor 32 and the magnet 22, which is favorable to enhance the magnetic field signal at the magnetic sensor 32, which is favorable to enlarge the movement range of the magnet 22 that can be detected by the magnetic sensor 32, which is favorable to enlarge the movement range of the translation unit 2 in this embodiment.

Alternatively, in other embodiments of the present invention, the first boss 1111 (or the second boss 122) may be eliminated, and under the cooperation of the second boss 122 (or the first boss 1111), the upper cover 12 and the base 11, it can still be ensured that the deformation action of the ring-shaped tension spring 4 meets the use requirement, and of course, it is preferable to provide the first boss 1111 and the second boss 122 at the same time, so that the connection plate 21 abuts against the middle portion of the ring-shaped tension spring 4 along the Z-axis direction, which is favorable for further balancing the forces applied to the ring-shaped tension spring 4 and the translation unit 2, and is favorable for improving the stability of the movement of the translation unit 2.

Upper cover 12 in this embodiment passes through screw fixed connection with base 11, optionally in the utility model discloses an in other embodiments, upper cover 12 also can carry out fixed connection through other modes such as buckle with base 11, and in the same way, circuit board 31 also can carry out fixed connection with modes such as screw, buckle or gluing with base 11.

Alternatively, in other embodiments of the present invention, a ring-shaped rubber band may be used as the ring-shaped elastic member instead of the ring-shaped tension spring 4 of the embodiment.

Finally, it should be emphasized that the above-described embodiments are merely preferred examples of the present invention, and are not intended to limit the invention, as those skilled in the art will appreciate that various changes and modifications may be made, and any and all modifications, equivalents, and improvements made, while remaining within the spirit and principles of the present invention, are intended to be included within the scope of the present invention.

Claims

1. A plane movement position detection device including a base, a translation unit and an electric control unit, the translation unit being restricted to be movable relative to the base in a two-dimensional plane direction perpendicular to a first direction, the translation unit including a magnet, the electric control unit including a magnetic sensor fixed to the base, the electric control unit detecting a position of the translation unit by the magnetic sensor sensing the magnet;

the method is characterized in that:

the base body comprises a first split body and a second split body which are fixedly connected with each other, the first split body and the second split body are distributed along the first direction, and an installation space is formed between the first split body and the second split body;

the translation unit further comprises a connecting plate, a normal line of a main surface of the connecting plate is along the first direction, at least one of the first split body and the second split body is provided with a limiting boss facing the installation space along the first direction, and the limiting boss and the connecting plate are distributed along the first direction;

the plane moving position detection device further comprises an annular elastic piece, the annular elastic piece is limited in the installation space and sleeved on the limiting boss and the outer peripheral wall of the connecting plate, the limiting boss and the connecting plate are abutted to the inner side wall of the annular elastic piece, and the annular elastic piece can respond to the movement of the connecting plate and deform in the direction perpendicular to the two-dimensional plane of the first direction.

2. The planar movement position detection apparatus according to claim 1, characterized in that:

the annular elastic member is in sliding fit with the first split body, and the annular elastic member is in sliding fit with the second split body.

3. The planar movement position detection apparatus according to claim 1, characterized in that:

the limiting boss is in sliding fit with the connecting plate;

the limiting boss comprises a first boss arranged on the first split body and a second boss arranged on the second split body, the first boss is opposite to the second boss along the first direction, and the connecting plate is located between the first boss and the second boss.

4. The planar movement position detection device according to claim 3, characterized in that:

along the first direction, the electronic control unit is located on one side, back to the second split body, of the first split body, and the first split body separates the electronic control unit from the translation unit.

5. The planar movement position detection apparatus according to claim 4, characterized in that:

the first boss is disc-shaped, a groove is formed in a side wall surface of the first split body, which faces away from the second split body, the groove is opposite to the first boss along the first direction, and the magnetic sensor is located in the groove.

6. The planar movement position detection apparatus according to any one of claims 1 to 5, characterized in that:

the first components are located below the second components, the first components comprise bottom plates and side plates, the side plates are located on the bottom plates, the second components extend to the bottom plates, the side plates and the bottom plates form an open upward groove-shaped structure, and the second components cover the opening of the groove-shaped structure.

7. The planar movement position detection apparatus according to claim 1, characterized in that:

the normal of the connecting plate is circular along the shape of the outer contour of the section of the first direction;

the normal line of the limiting bosses is circular in shape along the section outline in the first direction, or the number of the limiting bosses is at least two, and the limiting bosses are distributed along the direction of a circular ring;

when the plane movement position detection device is in a free state, the central line of the limiting boss coincides with the central line of the connecting plate.

8. The planar movement position detection apparatus according to claim 1, characterized in that:

the magnetic sensor comprises a Hall sensor or a magnetoresistive sensor;

when the planar movement position detection device is in a free state, the magnetic sensor and the magnet face each other in the first direction.

9. An input device comprising a joystick, characterized in that:

the plane movement position detection device as claimed in any one of claims 1 to 8, wherein the second split body has an operation hole penetrating to the installation space along the first direction, the operation handle passes through the operation hole and is fixedly connected with the connection plate, and the operation handle is exposed outside the base body.

10. The input device of claim 9, wherein:

the normal line of the operation hole has a circular cross-sectional profile along the first direction, and the manipulation knob is held at the center line of the operation hole when the input device is in a free state.