Non-contact key potential module

Abstract

The utility model discloses a non-contact key potential module, which comprises a shell, a PCB (printed circuit board) is arranged in the shell, a rotating shaft is mounted in the shell, and one end of the rotating shaft extends out of the shell and is provided with a driving end; a light-transmitting hole is formed in the rotating shaft in the shell; and a light-emitting element and a light-sensitive element are respectively arranged on the PCB on the two sides of the light-transmitting hole. Compared with the prior art, the non-contact key potential module has the advantages that the non-contact key potential module not only has few parts, small volume and long service life, but also can be well adapted to a game handle trigger key of which the pressing direction is parallel to a PCB (Printed Circuit Board), and also can be applied to a common key of which the pressing direction is vertical to the PCB.

Description

Technical Field

[0001] The utility model relates to a key, in particular to a non-contact key potential module. Background Art

[0002] Due to the problem that traditional mechanical and contact keys are easy to be damaged and have poor contact, optical keys have gradually replaced traditional mechanical and contact keys in recent years. However, the existing optical key module is not only relatively complex in structure design, with many parts and large volume, but also only suitable for ordinary conventional straight up and down keys, but cannot be used on some specific keys. For example, the utility model patent with the Chinese patent announcement number CN 218886918U and the name "An optical potentiometer module" discloses an optical potentiometer module, including a potentiometer seat body with a key slot and a potentiometer key installed in the key slot and capable of moving up and down, a reset member for resetting the potentiometer key is also provided in the key slot, and also includes a light pair tube composed of a photosensitive element and a light emitting element, and a grating is provided on the potentiometer key corresponding to the optical path of the light pair tube, and the grating is configured to change the light flux received by the photosensitive element to the light emitting element as the potentiometer key moves up and down, thereby causing the electrical signal generated by the photosensitive element to change with the displacement of the potentiometer key. This type of key module can only be used on keys whose pressing direction is perpendicular to the PCB board, and is not applicable to trigger keys of game controllers. Generally, the keycaps of the trigger keys are located on both sides of the front end of the game controller, and their pressing direction is parallel to the PCB main control board. Therefore, the optical potentiometer module of the prior art is not only large in size, but also cannot adapt to the pressing direction of the trigger keys of the game controller. Therefore, the development of a non-contact key potentiometer module has become an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0003] The utility model provides a non-contact key potential module in order to solve the above-mentioned drawbacks.

[0004] The above-mentioned purpose of the utility model is achieved through the following technical scheme: a non-contact key potential module, including a shell, a PCB board is arranged in the shell, and its characteristics are: a rotating shaft is installed in the shell, one end of the rotating shaft extends out of the shell and is provided with a driving end, a light-transmitting hole is provided on the rotating shaft in the shell, and light-emitting elements and photosensitive elements are respectively arranged on the PCB boards on both sides of the light-transmitting hole.

[0005] The above-mentioned purpose of the utility model is achieved through the following another technical solution: a non-contact key potential module, including a shell, a PCB board is arranged in the shell, and its characteristics are: a rotating shaft is installed in the shell, one end of the rotating shaft extends out of the shell and is provided with a driving end, a shading part is provided on the rotating shaft located in the shell, and light-emitting elements and photosensitive elements are respectively arranged on the PCB boards on both sides of the shading part.

[0006] The above-mentioned purpose of the utility model is achieved through the following technical solution: a non-contact key potential module, including a shell, a PCB board is arranged in the shell, and the characteristic is that: a rotating shaft is installed in the shell, one end of the rotating shaft extends out of the shell, and a driving end is arranged, a reflective surface is arranged on the rotating shaft located in the shell, and a light-emitting element and a photosensitive element or an infrared transmitting and receiving integrated tube are arranged on the PCB board on one side of the reflective surface.

[0007] The above-mentioned purpose of the utility model is achieved through the following further technical scheme: a non-contact key potential module, including a shell, a PCB board is arranged in the shell, and its characteristics are: a rotating shaft is installed in the shell, one end of the rotating shaft extends out of the shell and is provided with a driving end; a magnet is radially provided on the rotating shaft located in the shell, and a Hall element is provided on the PCB board on one side of the magnet.

[0008] Furthermore, the driving end is a rod body, and one end of the rod body is fixedly connected to an end of the rotating shaft extending out of the outer side of the shell.

[0009] Furthermore, the driving end is a gear, and the gear is fixedly connected to an end of the rotating shaft extending out of the outer side of the shell.

[0010] Furthermore, the contactless key potential module includes a key cap, the bottom of which abuts against the upper end of the driving end, or a hinged end is provided at the bottom of one side of the key cap and is hinged to the upper end of the driving end, and the other side is rotatably connected to the device housing.

[0011] Furthermore, a resetting device is provided on the rotating shaft.

[0012] Furthermore, the reset device is a torsion spring, which is sleeved on the rotating shaft, and one end of the torsion spring is fixed on the rotating shaft, and the other end is fixed on the housing.

[0013] Furthermore, the resetting device includes a pair of mutually attracting magnets, one of which is fixed to the bottom end of the light shielding portion of the rotating shaft in the initial position, and the other is fixed directly below the light shielding portion in the initial position.

[0014] Furthermore, the PCB board is provided with pins or cables for electrical connection.

[0015] Furthermore, the shell includes a main shell and a shell cover, and the main shell and the shell cover are buckled together by a snap-fit ​​structure, or connected to each other by screws.

[0016] The advantages of the utility model compared with the prior art are: the non-contact key potential module of the utility model not only has fewer components, small size, and long service life, but also can be well adapted to the trigger keys of game controllers whose pressing directions are parallel to the PCB main control board, and can also be applied to ordinary keys whose pressing directions are perpendicular to the PCB main control board. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the appearance structure of the first embodiment of the utility model.

[0018] Figure 2 It is a schematic diagram of the exploded structure of the first embodiment of the present utility model.

[0019] Figure 3 It is a schematic diagram of an assembly and use state of the utility model.

[0020] Figure 4 This is another schematic diagram of the assembly and use state of the utility model.

[0021] Figure 5 It is a schematic diagram of the appearance structure of another style of the first embodiment of the utility model.

[0022] Figure 6 This is another schematic diagram of the decomposition structure of the first embodiment of the utility model. Figure 1 .

[0023] Figure 7 This is another schematic diagram of the decomposition structure of the first embodiment of the utility model. Figure 2 .

[0024] Figure 8 It is a schematic diagram of the exploded structure of the second embodiment of the present utility model.

[0025] Fig. 9 It is a schematic diagram of the internal structure of the second embodiment of the present utility model.

[0026] Fig.10 It is a schematic diagram of the exploded structure of the third embodiment of the utility model from one side angle.

[0027] Fig.11 It is a schematic diagram of the exploded structure of the third embodiment of the utility model from another side angle.

[0028] Fig.12 It is a schematic structural diagram of the third embodiment of the present invention using one side angle of another optical element.

[0029] Fig.13 It is a schematic structural diagram of another side angle of another optical element used in the third embodiment of the present invention.

[0030] Fig.14 It is a structural schematic diagram of the fourth embodiment of the present utility model.

[0031] Fig.15 It is a structural schematic diagram of the fifth embodiment of the present utility model. DETAILED DESCRIPTION

[0032] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0033] Example 1: Figures 1 to 4 As shown, a contactless key potential module includes a shell 1, wherein the shell 1 includes a main shell 101 and a shell cover 102, wherein the main shell 101 and the shell cover 102 are buckled together by a snap-fit ​​structure, or connected to each other by screws. A PCB board 2 is provided in the shell 1, wherein the PCB board 2 is provided with pins 201 or wiring for electrical connection, wherein a rotating shaft 3 is installed in the shell 1, wherein one end of the rotating shaft 3 extends out of the shell 1, and a driving end 301 is provided, wherein the driving end 301 is a rod, and one end of the driving end 301 is fixedly connected to the outer end of the rotating shaft 3 extending out of the shell, wherein a light-transmitting hole 302 is provided on the rotating shaft 3 in the shell 1, and light-emitting elements 4 and photosensitive elements 5 are provided on the PCB board 2 on both sides of the light-transmitting hole 302, respectively. When assembled and used, the contactless key potential module also includes a key cap 6, wherein the bottom of the key cap 6 abuts against the upper end of the driving end 301 ( Figure 3 ), or the hinge end 601 ( Figure 4 ), and is hinged to the upper end of the driving end 301, and the other side is rotatably connected to the device housing.

[0034] like Figure 5 , Figure 6 and Figure 7 FIG. 2 is a schematic diagram of another structure of the first embodiment.

[0035] During operation, the key cap 6 is pressed down, and the driving end 301 is pressed down to rotate the shaft 3, thereby changing the inclination angle of the light-transmitting hole 302, causing the amount of light passing through the light-transmitting hole 302 to change, and then changing the amount of light received by the photosensitive element 5, and converting it into a corresponding digital quantity (resistance value) through the photosensitive element 5. The digital quantity (resistance value) signal is transmitted to the single-chip microcomputer on the PCB board 2, and the single-chip microcomputer gives a corresponding execution instruction after analysis.

[0036] Example 2: Figure 8 , Fig. 9As shown, a contactless key potential module includes a shell 1, wherein the shell 1 includes a main shell 101 and a shell cover 102, wherein the main shell 101 and the shell cover 102 are buckled together by a snap-fit ​​structure, or connected to each other by screws. A PCB board 2 is arranged inside the shell 1, wherein the PCB board 2 is provided with pins 201 or a flat cable for electrical connection, wherein a rotating shaft 3 is installed in the shell 1, wherein one end of the rotating shaft 3 extends out of the shell 1, and a driving end 301 is arranged, wherein the driving end 301 is a rod, and one end of the driving end 301 is fixedly connected to the outer end of the rotating shaft 3 extending out of the shell, wherein a shading portion 303 is arranged on the rotating shaft 3 inside the shell 1, and light-emitting elements 4 and photosensitive elements 5 are arranged on the PCB board 2 on both sides of the shading portion 303, respectively (when the light-emitting element 4 and the photosensitive element 5 are arranged When the shading portion 303 is below the height of the rotating shaft 3, the lowest point of the shading portion 303 does not exceed the lowest point of the light emitting element 4 and the photosensitive element 5, so that after the shading portion 303 rotates, part of the light can pass through the lower edge of the shading portion 303 and reach the photosensitive element 5; when the light emitting element 4 and the photosensitive element 5 are arranged above the height of the rotating shaft 3, the lowest point of the shading portion 303 does not exceed the highest point of the light emitting element 4 and the photosensitive element 5, so that after the shading portion 303 rotates, part of the light can pass through the upper edge of the shading portion 303 and reach the photosensitive element 5). When assembling and using, refer to Figure 3 , Figure 4 The non-contact key potential module further includes a key cap 6, the bottom of which abuts against the upper end of the driving end 301 ( Figure 3 ), or the hinge end 601 ( Figure 4 ), and is hinged to the upper end of the driving end 301, and the other side is rotatably connected to the device housing.

[0037] During operation, the keycap 6 is pressed down, and the driving end 301 is pressed down to rotate the shaft 3, thereby changing the inclination angle of the shading portion 303, causing the amount of light blocked by the shading portion 303 to change, thereby changing the amount of light received by the photosensitive element 5, and converting it into a corresponding digital quantity (resistance value) through the photosensitive element 5. The digital quantity (resistance value) signal is transmitted to the microcontroller on the PCB board 2, and the microcontroller gives a corresponding execution instruction after analysis.

[0038] Example 3: Figures 10 to 13As shown, a non-contact key potential module includes a housing 1, wherein the housing 1 includes a main housing 101 and a housing cover 102, wherein the main housing 101 and the housing cover 102 are buckled together by a snap-fit ​​structure or connected to each other by screws. A PCB board 2 is arranged inside the housing 1, wherein the PCB board 2 is provided with pins 201 or a flat cable for electrical connection, wherein a rotating shaft 3 is installed in the housing 1, wherein one end of the rotating shaft 3 extends out of the housing 1, and a driving end 301 is arranged, wherein the driving end 301 is a rod, and one end of the driving end 301 is fixedly connected to the outer end of the rotating shaft 3 extending out of the housing, wherein a reflective surface 304 is arranged on the rotating shaft 3 inside the housing 1, and a light-emitting element 4 and a photosensitive element 5 ( Fig.10 , Fig.11 As shown) or infrared transmitting and receiving integrated tube 7 ( Fig.12 , Fig.13 When assembling, refer to Figure 3 , Figure 4 The non-contact key potential module further includes a key cap 6, the bottom of which abuts against the upper end of the driving end 301 ( Figure 3 ), or the hinge end 601 ( Figure 4 ), and is hinged to the upper end of the driving end 301, and the other side is rotatably connected to the device housing.

[0039] During operation, the key cap 6 is pressed down, and the pressing driving end 301 causes the rotating shaft 3 to rotate, thereby changing the inclination angle of the reflective surface 304, causing the amount of light reflected by the reflective surface 304 to change, and then changing the amount of light received by the photosensitive element 5 or the infrared transmitting and receiving integrated tube 7, and converting it into a corresponding digital quantity (resistance value) through the photosensitive element 5. The digital quantity (resistance value) signal is transmitted to the single-chip microcomputer on the PCB board 2, and the single-chip microcomputer gives a corresponding execution instruction after analysis.

[0040] Example 4: Fig.14 As shown, a contactless key potential module includes a shell 1, and the shell 1 includes a main shell 101 and a shell cover 102. The main shell 101 and the shell cover 102 are buckled together by a snap-fit ​​structure, or connected to each other by screws. A PCB board 2 is arranged in the shell 1, and the PCB board 2 is provided with pins 201 or wiring for electrical connection. A rotating shaft 3 is installed in the shell 1, and one end of the rotating shaft 3 extends out of the shell 1, and is provided with a driving end 301. The driving end 301 is a rod, and one end of the driving end 301 is fixedly connected to the outer end of the rotating shaft 3 extending out of the shell. The rotating shaft 3 located in the shell 1 is radially provided with a magnet fixing part 305, and a magnet 306 is fixed. A Hall element 8 is provided on the PCB board 2 on one side of the magnet 306. When assembling and using, refer to Figure 3 , Figure 4The non-contact key potential module further includes a key cap 6, the bottom of which abuts against the upper end of the driving end 301 ( Figure 3 ), or the hinge end 601 ( Figure 4 ), and is hinged to the upper end of the driving end 301, and the other side is rotatably connected to the device housing.

[0041] During operation, the key cap 6 is pressed down, and the driving end 301 is pressed down to rotate the shaft 3, thereby changing the distance between the magnet 306 and the Hall element 8, causing the magnetic field strength sensed by the Hall element 8 to change, and the magnetic field strength signal received by the Hall element 8 is converted into a corresponding digital quantity (resistance value). The digital quantity (resistance value) signal is transmitted to the single-chip microcomputer on the PCB board 2, and the single-chip microcomputer gives a corresponding execution instruction after analysis.

[0042] The aforementioned embodiments 1-4 are embodiments for a trigger key whose pressing direction is parallel to the PCB main control board in the device host (game controller).

[0043] Embodiment 5: When the non-contact key potential module of the present invention is applied to a common key whose pressing direction is perpendicular to the PCB main control board in the electronic device host (such as a game controller), the rod driving end of the rotating shaft can be replaced with a gear 10 on the basis of any of the embodiments 1-4. Fig.15 As shown, a gear drive end is formed, and the gear 10 is fixedly connected to the end of the rotating shaft 3 extending out of the outer side of the housing. When assembled and used, the non-contact key potential module also includes a key cap 6, and the bottom of the key cap 6 is connected to a rack 602, and the rack 602 is meshed with the gear 10.

[0044] In the above four embodiments, when the shaft 3 is not provided with a reset device, its reset can rely on the reset mechanism of the key cap 6 itself (such as the key cap reset spring) to drive the shaft to reset. When the key cap 6 is not provided with a reset mechanism, a reset device can be provided on the shaft, and the reset device includes but is not limited to a torsion spring 9. In the present utility model, the reset device is a torsion spring 9 (such as Figure 2 , Figure 8 , Fig.10 , Fig.12 , Fig.14 As shown in FIG. 1 , a torsion spring 9 is sleeved on the rotating shaft 3, and one end of the torsion spring 9 is fixed on the rotating shaft 3, and the other end is fixed on the housing 1. The torsion force of the torsion spring 9 is used to reset the rotating shaft.

[0045] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A non-contact key potential module, comprising a housing, wherein a PCB board is arranged in the housing, characterized in that: A rotating shaft is installed in the shell, one end of the rotating shaft extends out of the shell and is provided with a driving end; a light-transmitting hole is provided on the rotating shaft in the shell, and light-emitting elements and photosensitive elements are respectively provided on PCB boards on both sides of the light-transmitting hole.

2. A non-contact key potential module, comprising a housing, wherein a PCB board is arranged in the housing, characterized in that: A rotating shaft is installed in the shell, one end of the rotating shaft extends out of the shell and is provided with a driving end, a shading portion is provided on the rotating shaft in the shell, and light-emitting elements and photosensitive elements are respectively provided on PCB boards on both sides of the shading portion.

3. A non-contact key potential module, comprising a housing, wherein a PCB board is arranged in the housing, characterized in that: A rotating shaft is installed in the shell, one end of the rotating shaft extends out of the shell and is provided with a driving end. A reflective surface is provided on the rotating shaft located in the shell, and a light-emitting element and a photosensitive element or an infrared transmitting and receiving integrated tube are provided on a PCB board on one side of the reflective surface.

4. A non-contact key potential module, comprising a housing, wherein a PCB board is arranged in the housing, characterized in that: A rotating shaft is installed in the shell, one end of the rotating shaft extends out of the shell and is provided with a driving end, a magnet is radially provided on the rotating shaft located in the shell, and a Hall element is provided on a PCB board on one side of the magnet.

5. A non-contact key potential module according to any one of claims 1 to 4, characterized in that: The driving end is a rod body, and one end of the rod body is fixedly connected to the outer end of the rotating shaft extending out of the shell.

6. A non-contact key potential module according to any one of claims 1 to 4, characterized in that: The driving end is a gear, and the gear is fixedly connected to an end of the rotating shaft extending out of the outer side of the shell.

7. A non-contact key potential module according to any one of claims 1 to 4, characterized in that: The non-contact key potential module includes a key cap, the bottom of the key cap abuts against the upper end of the driving end, or the bottom of the key cap is provided with a hinge end, which is hinged to the upper end of the driving end.

8. A non-contact key potential module according to any one of claims 1 to 4, characterized in that: A resetting device is arranged on the rotating shaft.

9. A non-contact key potential module according to claim 8, characterized in that: The reset device is a torsion spring, which is sleeved on the rotating shaft, and one end of the torsion spring is fixed on the rotating shaft, and the other end is fixed on the housing.

10. A non-contact key potential module according to claim 8, characterized in that: The reset device comprises a pair of magnets that attract each other, wherein one magnet is fixed to the bottom end of the light shielding portion of the rotating shaft at the initial position, and the other magnet is fixed just below the light shielding portion at the initial position.

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