CN217240683U - Rotary key and magnetic induction type keyboard switch - Google Patents

Abstract

The utility model relates to the technical field of keyboards, and discloses a magnetic induction type keyboard switch, which comprises a rotary key, a key cap fixed at the upper end of the rotary key, a mounting plate sleeved and fixed at the middle part of the rotary key and a circuit board fixed at the lower end of the rotary key, wherein the rotary key comprises a cylindrical rotary shaft and a hollow shaft core sleeved at the periphery of the rotary shaft, a magnet is arranged in the rotary shaft, the magnet is adjacent to one side surface of the circuit board, a Hall switch is fixed at the other side surface of the circuit board corresponding to the position of the magnet, a spiral slide rail is concavely arranged at the peripheral surface of the rotary shaft, a bulge is arranged at the inner wall of the shaft core corresponding to the slide rail, the shaft core is vertically pressed, the bulge runs in the slide rail to drive the rotary shaft to rotate, the magnetic field direction is changed by the rotating magnet to induce the Hall switch, a controller on the circuit board receives the changed Hall switch signal, the function of the keyboard is realized, the space positions of the magnet and the Hall switch are fixed, the fixed of magnet rotation angle has ensured the functional use uniformity of magnetism sensing formula keyboard.

Description

Rotary key and magnetic induction type keyboard switch

Technical Field

The utility model relates to a keyboard technical field, in particular to magnetism formula keyboard switch of feeling with rotatory button.

Background

With the increasing change of computer keyboard technology, magnetic induction switches are more and more popular with a plurality of computer players and have been successfully applied to keyboards, the magnetic induction switches comprise keys (not shown) capable of being vertically pressed, the keys comprise pressing pieces capable of moving vertically and shells supporting the pressing pieces to move vertically, magnets are arranged on the pressing pieces, the shells are provided with hall switches, the magnetic induction switches drive the magnets to move up and down by vertically pressing the pressing pieces, and the magnetic induction switches sense the signal change of the hall switches by changing the distance between the magnets and the hall switches to realize the functions of the magnetic induction switches.

SUMMERY OF THE UTILITY MODEL

The problem of the uniformity effect of magnetic induction switch among the prior art is poor is overcome. The utility model provides a rotary button and magnetism formula keyboard switch of feeling, its concrete technical scheme as follows:

a rotary key is integrally in a square shape and comprises a cover body, a hollow shaft core, a cylindrical rotary shaft, a return spring and a base, wherein the cover body and the base are clamped to form an accommodating space; the base comprises a square bottom plate and a side wall, wherein the inner wall of the shaft core is provided with a bulge matched with the outer wall, and the base comprises a square bottom plate and a side wall.

Furthermore, the cover body faces four corners of the base and is provided with clamping hooks, and the clamping hooks are fixedly clamped with the base.

Further, a mounting hole is convexly formed in the surface of one side, facing the cover body, of the bottom plate, and the small-diameter portion of the rotating shaft is mounted in the mounting hole and can rotate.

Further, the magnetic field direction rotation angle of the N/S pole of the magnet is regular rotation parallel to the X axis.

Correspondingly, the utility model also provides a magnetism formula keyboard switch of feeling, it includes rotatory button.

The magnetic switch is characterized by further comprising a keycap fixed at the upper end of the rotary key, a mounting plate sleeved and fixed in the middle of the rotary key and a circuit board fixed at the lower end of the rotary key, wherein the magnet is abutted to one side surface of the circuit board, and a Hall switch is arranged on the other side surface of the circuit board corresponding to the position of the magnet.

Further, the circuit board is provided with a first through hole and a second through hole, and the LED lamp is fixedly installed in the first through hole.

Furthermore, a fixing pin is convexly arranged on the other side surface of the bottom plate facing the circuit board, and the fixing pin is matched with the second through hole.

Furthermore, the rotary key is arranged on one surface of the circuit board in parallel.

Further, the N/S pole of the magnet is arranged in parallel with the circuit board, and the Hall switch is arranged in parallel with the other side surface of the circuit board.

The utility model has the advantages that: through pressing the key cap of magnetism formula keyboard switch of feeling, realize pressing the axle core of rotatory button perpendicularly, it is rotatory to move the drive axis of rotation in the helix slide rail of axis of rotation outer peripheral face through the arch of axle core, through fixed magnet in the axis of rotation, rotatory magnet realizes the change of magnetic field direction and responds to hall switch, hall switch signal's change is received to the controller on the circuit board, realize the function of keyboard, the magnet that is located the circuit board both sides and hall switch press the ascending rigidity of side perpendicularly of magnetism formula keyboard switch, magnet rotation angle's is fixed, the uniformity of magnetism formula keyboard switch is felt to the magnetism has been ensured.

Drawings

Fig. 1 is an exploded view of the magnetic induction type rotary keyboard switch of the present invention.

Fig. 2 is an assembled cross-sectional view of the magnetic induction type rotary keyboard switch of the present invention.

Fig. 3 is an exploded view of the rotary button of the present invention.

Fig. 4 is an assembled cross-sectional view of the rotary key of the present invention.

Fig. 5 is a structural view of the rotating shaft of the present invention.

Fig. 6 is a structural view of the shaft core of the present invention.

Fig. 7 is a schematic structural diagram of the hall switch and the magnet according to the present invention.

Wherein:

1-a keycap;

2-rotating the key; 21-a cover body; 211-hook; 22-an axial core; 221-a bump; 23-a return spring; 24-a rotating shaft; 241-a slide rail; 25-a base; 251-a fixed pin; 252-mounting holes; 3, mounting a plate;

4-a circuit board; 41-a first through hole; 42-a second via;

5-LED lamps; 6-a Hall element; 7-magnet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model discloses magnetic induction formula keyboard switch's structure is as shown in fig. 1 and fig. 2, including top-down's key cap 1, rotary button 2, mounting panel 3, circuit board 4, LED lamp 5 and hall switch 6. The key cap 1 is fixed in rotatory button 2 upper end, and the middle part at rotatory button 2 is established to mounting panel 3 cover, and circuit board 4 is fixed at the lower extreme at rotatory button 2, establishes magnet 7 in the lower extreme of rotatory button 2, and magnet 7 borders on one side surface of circuit board 4, and the other side surface of circuit board 4 that corresponds the magnet 7 position is fixed and is provided with hall switch 6. The circuit board 4 is provided with a controller (not shown) and a first through hole 41 and a second through hole 42 penetrating through the axial thickness of the controller, the controller is used for receiving signals sent by the Hall switch 6, the first through hole 41 is used for fixedly mounting the LED lamp 5, and the LED lamp 5 is electrically connected with the circuit board 4 and used for character backlight on a keycap of the magnetic induction type keyboard.

The utility model discloses a theory of operation of magnetic induction formula keyboard switch: press key cap 1 through the vertical direction, press the upper end input axial of rotatory button 2 and turn into the radial rotatory output of rotatory button 2 lower extreme after pressing to drive the magnet 7 rotation of rotatory button 2 lower extreme, change of magnetic field direction is realized to rotatory magnet 7, hall switch 6 changes through the change of the magnetic field direction of response magnet 7 and the signal that leads to hall switch 6, realize the switch function of magnetism sensing formula keyboard through the controller that receives hall switch 6 signal. The utility model discloses an among the formula keyboard is felt to magnetism, the axial position who is located 4 both sides magnets 7 of circuit board and hall switch 6 is fixed, and magnet 7 is fixed at radial ascending rotation angle, has guaranteed hall switch 6 signal output's stability to the uniformity of formula keyboard is felt to magnetism has been ensured. With hall switch 6 in horizontally disposed N, S pole relationship to magnet 7.

The rotary key 2 has a structure as shown in fig. 3 and 4, the whole rotary key 2 is a square body, and includes a cover 21, a hollow shaft core 22, a return spring 23, a cylindrical rotating shaft 24 and a base 25 from top to bottom, and hooks 211 are arranged at four corners of the cover 21 facing the base 25. The cover body 21 at the upper end is fixedly clamped with the lower end base 25 through the clamping hook 211 to form an accommodating space (not marked), one end of the shaft core 22 protrudes out of the cover body 21, the upper end of the shaft core 22 is fixed on the cover body 21, the shaft core 22 protruding out of the cover body 21 is fixedly connected with the keycap 1 to form a pressing input end of the rotary key 2, the lower end of the shaft core 22 is sleeved on the outer peripheral surface of the upper end of the rotating shaft 24 in the accommodating space, the lower end of the rotating shaft 24 is fixed on the base 25, the magnet 7 is arranged in the lower end of the rotating shaft 24, and the reset spring 23 is arranged between the shaft core 22 and the rotating shaft 24 accommodated in the accommodating space. The base 25 includes a square bottom plate (not shown) and a side wall (not shown), the side wall is used for fixing the mounting plate 3, a mounting hole 252 is protruded from a central position of a side surface of the bottom plate facing the cover 22, the mounting hole 252 is used for mounting a small diameter portion of the rotating shaft 24, and simultaneously, the rotating shaft 24 is supported to rotate freely in the mounting hole 252. The other side surface of the bottom plate is convexly provided with a fixing pin 251, and the fixing pin 251 is inserted into the second through hole 42 of the circuit board 4 to realize the positioning and installation of the rotary key 2 and the circuit board 4.

The rotating shaft 24 includes a large diameter portion (not shown) at an upper end and a small diameter portion (not shown) at a lower end, and at least two spiral sliding rails 241 are uniformly recessed on an outer circumferential surface of the large diameter portion, as shown in fig. 5. The structure of the shaft core 22 is shown in fig. 6, the inner wall of the hollow shaft core 22 is provided with a protrusion 221, and the protrusion 221 is matched with the slide rail 24.

The actuation principle of the rotary button 2: by vertically pressing the rotary key 2, a vertical pressing force is input to the upper end of the shaft core 22, the shaft core 22 moves downwards, the protrusion 221 of the shaft core 22 moves downwards vertically, the spiral slide rail 241 matched with the protrusion 221 pushes the rotating shaft 24 to rotate radially by the vertical axial pressure, the pressing force input to the shaft core 22 is stopped, and the return spring 23 pushes the shaft core to return.

As shown in fig. 7, the utility model discloses the N, S magnetic pole of magnet 7 of rotatory button is the horizontal setting of X axle, and the setting of the N/S utmost point of magnet 7 is on a parallel with the circuit board, and be on a parallel with the setting of circuit board opposite side surface hall switch, the magnetic field direction turned angle of the magnet N/S utmost point is for being on a parallel with the regular rotation of X axle, and horizontal rotation direction is as shown by the arrow point, and the magnetic pole can set up to 2 utmost points, 4 grades or 6 grades. The hall switch 6 realizes the function of a keyboard by sensing the direction of a magnetic field changed by the rotating magnet 7.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A rotary key is integrally in a tetragonal body and is characterized by comprising a cover body, a hollow shaft core, a cylindrical rotary shaft, a return spring and a base, wherein the cover body and the base are clamped to form an accommodating space; the bearing comprises a bearing body, a bearing seat and a bearing seat, wherein the bearing seat is arranged in the bearing seat, the bearing seat is arranged on the bearing seat, and the bearing seat is arranged on the bearing seat.

2. The rotary key of claim 1, wherein hooks are disposed at four corners of the cover facing the base, and the hooks are engaged with and fixed to the base.

3. The rotary key of claim 2, wherein a mounting hole is protruded from a side surface of the base plate facing the cover, and the small diameter portion of the rotary shaft is rotatably mounted in the mounting hole.

4. The rotary key of claim 3, wherein the magnetic field direction rotation angle of the N/S pole of the magnet is a regular rotation parallel to the X axis.

5. A magnetically sensitive keyboard switch comprising a rotary key as claimed in any one of claims 1 to 3.

6. The magnetically inductive keyboard switch of claim 5, further comprising a key cap fixed to the upper end of the rotary key, a mounting plate sleeved on the middle portion of the rotary key, and a circuit board fixed to the lower end of the rotary key, wherein the magnet is adjacent to one side surface of the circuit board, and a hall switch is disposed on the other side surface of the circuit board corresponding to the position of the magnet.

7. The magnetically sensitive keyboard switch of claim 6, wherein the circuit board is provided with a first through hole and a second through hole, the first through hole having an LED light fixedly mounted therein.

8. The magnetically sensitive keyboard switch of claim 7, wherein a fixing pin is protruded from the other side surface of the bottom plate facing the circuit board, and the fixing pin is adapted to the second through hole.

9. The magnetically sensitive keyboard switch of claim 8, wherein the rotary key is disposed parallel to a surface of the circuit board.

10. The magnetically sensitive keyboard switch of claim 9, wherein the N/S pole of the magnet is disposed parallel to the circuit board and parallel to the hall switch disposed on the other side surface of the circuit board.

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