TW201724149A - Keyswitch and keyboard thereof - Google Patents

Abstract

A keyswitch includes a board, a cap, and a support device disposed between the board and the cap. A first edge of a first support member of the support device has a first hole formed toward a first bending arm of the board. The first bending arm is disposed through the first hole for pressing the first edge to abut against the board. The first edge has a second magnet portion formed toward the second support member. A support portion extends from a second edge of the second support member toward the first support member for supporting the second magnet portion. When the cap is pressed to make the second magnet portion away from a first magnet portion of the board with rotation of the first and second support members relative to the first and second edges, the cap moves to a pressed position.

Description

Button and its keyboard

The present invention relates to a button and a keyboard thereof, and more particularly to a button and a keyboard thereof that utilize the magnetic attraction between the support member and the bottom plate to serve as a driving force for resetting the keycap.

In terms of current personal computer usage habits, the keyboard is one of the indispensable input devices for entering text, symbols or numbers. Moreover, the consumer electronics products that are in contact with everyday life or the large-scale processing equipment used in the industry need to have a button structure as an input device to operate the above-mentioned electronic products and processing equipment.

Generally, the conventional keyboard adopts a pressing design in which the assembly structure of the scissor foot supporting device and the elastic member is disposed between the key cap and the bottom plate, thereby, when the key cap is pressed by the user, the elastic member provides elastic restoring force to the key cap. The drive key cap is returned to the position before pressing with the mechanism of the scissor foot support device. However, since the scissor-foot mechanism design adopted by the above-mentioned scissor-foot supporting device causes a large height space of the button, it is disadvantageous for the application of thinning the keyboard. In addition, since the elastic member is usually made of rubber, the rubber has a fatigue condition under long-term use, thereby shortening the service life of the button.

SUMMARY OF THE INVENTION One object of the present invention is to provide a button and a keyboard thereof that utilize the magnetic attraction between a seesaw member and a bottom plate to serve as a driving force for resetting a keycap to solve the above problems.

According to an embodiment, the button of the present invention includes a bottom plate, a keycap, and a support device. The bottom plate has a first magnetic portion and at least one first bent clamping arm. The supporting device is disposed between the bottom plate and the keycap and includes a first supporting member and a second supporting member, and a second magnetic portion is from the first abutting edge of the first supporting member to the second supporting member a first extension portion is formed and corresponding to the first magnetic portion, and a first connection hole portion is formed from the first abutting edge of the first support member to the at least one first bending clamping arm, the at least one first bending The folding clamp arm is disposed in the first connecting hole portion to press the first abutting edge to abut the bottom plate via the first connecting hole portion, and the supporting portion is abutted from the second abutting edge of the second supporting member Extending to the first support member to support under the second magnetic portion. When the keycap is not pressed, a magnetic attraction between the second magnetic portion and the first magnetic portion maintains the keycap in the unpressed position; when the keycap is pressed by an external force, the second magnetic force is caused And the pivoting of the first support member relative to the first abutting edge and the pivoting of the second support member relative to the second abutting edge away from the first magnetic portion and causing the abutting portion to lift And the key cap is moved to the pressing position by the supporting device from the unpressed position; when the external force is released, the magnetic force causes the second magnetic portion to be close to the first magnetic portion, so that the key cap is accompanied by the support The device is moved back to the undepressed position by the pressed position.

According to another embodiment, the keyboard of the present invention includes a backplane and a plurality of buttons. The bottom plate has a first magnetic portion and at least one first bent clamping arm. The plurality of buttons are disposed on the bottom plate, and at least one of the plurality of buttons includes a keycap and a supporting device. The supporting device is disposed between the bottom plate and the keycap and includes a first supporting member and a second supporting member, and a second magnetic portion is from the first abutting edge of the first supporting member to the second supporting member a first extension portion is formed and corresponding to the first magnetic portion, and a first connection hole portion is formed from the first abutting edge of the first support member to the at least one first bending clamping arm, the at least one first bending The folding clamp arm is disposed in the first connecting hole portion to press the first abutting edge to abut the bottom plate via the first connecting hole portion, and the supporting portion is abutted from the second abutting edge of the second supporting member Extending to the first support member to support under the second magnetic portion. When the keycap is not pressed, a magnetic attraction between the second magnetic portion and the first magnetic portion maintains the keycap in the unpressed position; when the keycap is pressed by an external force, the second magnetic force is caused And the pivoting of the first support member relative to the first abutting edge and the pivoting of the second support member relative to the second abutting edge away from the first magnetic portion and causing the abutting portion to lift And the key cap is moved to the pressing position by the supporting device from the unpressed position; when the external force is released, the magnetic force causes the second magnetic portion to be close to the first magnetic portion, so that the key cap is accompanied by the support The device is moved back to the undepressed position by the pressed position.

In summary, the keyboard provided by the present invention can omit the configuration of the scissor-foot mechanism and the elastic member in the conventional button, thereby effectively reducing the space required for the overall button, so as to facilitate the subsequent thinning of the keyboard, and Effectively extend the life of the button.

The advantages and spirit of the present invention will be further understood from the following embodiments and the accompanying drawings.

Referring to FIG. 1 and FIG. 2, FIG. 1 is a partial top view of a keyboard 10 according to an embodiment of the present invention, and FIG. 2 is a perspective view of the keyboard 10 of FIG. 1 for clearly displaying the keys. In the mechanism design of 12, the keycap 14 is shown in broken lines in FIG. 1 and the keycap 14 and the limit frame 46 are omitted in FIG. As shown in FIGS. 1 and 2, the keyboard 10 includes a plurality of buttons 12 (one shown in FIGS. 1 and 2, respectively, but not limited thereto) and a bottom plate 16. The button 12 is disposed on the bottom plate 16 for the user to press to perform a corresponding input operation. It should be noted that the keyboard 10 can be preferably applied to a portable electronic device (such as a notebook computer or a folding keyboard device) generally having an opening and closing mechanism composed of an upper cover and a lower cover, but not Limited.

The key magnetic design of the present invention can be applied to at least one of a plurality of keys 12, the number of which is dependent on the practical application of the keyboard 10. For the sake of simplicity, the following is for one of the magnetics. The button 12 of the suction design is described. As for the structural design of the button 12 of the same design, it can be deduced. As can be seen from FIGS. 1 and 2, the button 12 includes the keycap 14 and the support device 18. The support device 18 is disposed between the keycap 14 and the bottom plate 16 and includes a first support member 20 and a second support member 22. The first support member 20 and the second support member 22 are respectively pivotally connected to the bottom plate 16 and respectively abutted The keycap 14 is such that the keycap 14 can be moved between the unpressed position and the depressed position with the support device 18.

More specifically, the bottom plate 16 has a first magnetic portion 24 (shown in phantom in the first and second figures) and at least one first bent clamping arm 26 (shown in Figures 1 and 2, respectively). Two, but not limited to this, the second magnetic portion 28 extends from the first abutting edge S _{1 of the} first support member 20 to the second support member 22 and corresponds to the first magnetic portion 24, the first connecting hole portion The first abutting edge S _{1 of the} first supporting member 20 extends from the first abutting edge S ₁ to the first bending clamping arm 26 so that the first bending clamping arm 26 can pass through the first connecting hole 30 to pass through the first A connecting hole portion 30 presses the first abutting edge S ₁ against the bottom plate 16, and in this embodiment, the first bent clamping arm 26 may preferably be L-shaped (but not limited thereto) and may have the bent stopper portion 32 from the free end of the first bent portion P ₁ of the clamp arm 26 extends downwardly and laterally, a first connecting hole portion 30 may preferably be based with respect to the first abutting edge _an undercut S (as shown in FIG. 2), so that the first folding clamp arm 26 comes into contact with the first portion 30 of the connecting hole and _a depressed position coaxial with the first abutment edge S, whereby the first support member 20 relative to Bottom of the bottom plate 16 Lines can be more smoothly, thereby enhancing the key pressing handle 12 and the stroke of the pressing stability. In addition, the abutting portion 34 extends from the second abutting edge S _{2 of the} second supporting member 22 to the first supporting member 20 to be supported under the second magnetic portion 28, and the bottom plate 16 may further have at least one second bending portion. The clamping arm 36 (two, but not limited to the first and second figures), the second connecting hole 38 is bent from the second abutting edge S _{2 of the} second supporting member 22 to the second The clamping arm 36 is extended to allow the second bending clamping arm 36 to pass through the second connecting hole portion 38 to press the second abutting edge S ₂ against the bottom plate 16 via the second connecting hole portion 38. In this embodiment, the second bending clamp arm 36 can preferably be L-shaped (but not limited thereto) and can have the bending limit portion 40 from the second end of the second bending clamp arm 36. _{2 is} formed laterally and downwardly, and the second connecting hole portion 38 is preferably depressed relative to the second abutting edge S ₂ (as shown in FIG. 2) to contact the second bending clamping arm 36. a second connecting hole portion 38 against the pressing position and the second edge S ₂ abutting coaxially, whereby the second support member 20 relative to the bottom plate 16 of the pivot line can be more smoothly, thereby enhancing the handle 12 of the key pressing and a pressing Cheng stability.

In this way, when the first connecting hole portion 30 of the first supporting member 20 is pushed toward the first bending clamping arm 26 to pass the first bending clamping arm 26 to the first connecting hole portion 30, the bending is performed. The folding limit portion 32 can abut the inner hole edge 42 of the first connecting hole portion 30 to limit the displacement of the first support member 20 relative to the bottom plate 16 , thereby detachably connecting the first support member 20 to the bottom plate 16 . At the same time, the first bending clamp arm 26 presses down the first connecting hole portion 30 so that the first abutting edge S ₁ can reliably abut the bottom plate 16 , so that the first supporting member 20 is externally applied to the key cap 14 . During the pressing, the first abutting edge S ₁ floats due to pivoting relative to the bottom plate 16 and causes a problem that the pressing stroke of the key cap 14 increases, thereby effectively improving the pressing feel and the pressing sensitivity of the button 12. Similarly, when the second connecting hole portion 38 of the second supporting member 22 is pushed toward the second bending clamping arm 36 to pass the second bending clamping arm 36 to the second connecting hole portion 38, the bending is performed. The limiting portion 40 can abut the inner hole edge 44 of the second connecting hole portion 38 to restrict the displacement of the second supporting member 22 relative to the bottom plate 16, thereby detachably connecting the second supporting member 22 to the bottom plate 16, while The second bending clamp arm 36 presses the second connecting hole portion 38 downwards so that the second abutting edge S ₂ can reliably abut the bottom plate 16 , so that the second supporting member 22 can be pressed by the external force of the key bearing 14 . the process due to the base plate 16 is pivoted such that the second abutment edge S ₂ float 14 and causes the pressing stroke of the keycap problem of an increase, thereby effectively lifting handle 12 of the key press, and a pressing sensitivity. In summary, the first support member 20 pivots relative to the bottom plate 16 with the first abutting edge S ₁ as a pivot axis and the second abutting edge S ₂ pivots with the second abutting edge S ₂ as a pivot axis. When the bottom plate 16 is pivoted, the key cap 14 can be moved between the unpressed position and the pressed position. It should be noted that the keyboard provided by the present invention can be configured by pivoting the other supporting members to the bottom plate (for example, the hole shaft matching design) instead of the second bending clamping arm 36 and the second connecting hole portion 38. In order to improve the design flexibility of the support device of the keyboard and the bottom plate in the structural pivot connection.

In addition, please refer to FIG. 1 , FIG. 2 and FIG. 3 , and FIG. 3 is a schematic cross-sectional view of the keyboard 10 of FIG. 1 along a section line AA, as shown in FIG. 1 , FIG. 2 , and FIG. 3 , The bottom plate 16 can further have a limiting frame 46 for the key cap 14 to be movably disposed in the limiting frame 46. In this embodiment, the limiting frame 46 can have at least one magnetic member 48 (in FIG. 1 and 2 is shown in the figure and shown by a dashed line, but not limited thereto) and the bottom plate 16 can be composed of a magnetically permeable material, whereby the magnetic member 48 can magnetically abut the bottom plate 16 to position the limiting frame 46 on the bottom plate. 16 up, thereby improving the assembly convenience of the button 12. In addition, the key cap 14 has at least one limiting ear portion 50 extending toward the limiting frame 46 (seven shown in FIG. 1 , but not limited thereto), and the limiting frame 46 can stop the limiting ear portion 50 . To limit the height of the keycap 14 relative to the bottom plate 16. In practical applications, as shown in FIG. 3, the surface 25 of the first magnetic portion 28 of the first support member 20 contacting the first magnetic portion 24 may be a flat surface, but is not limited thereto, for example, in another In one embodiment, the surface 25 can be a concave curved surface or a concave curved surface. Similarly, the surface 35 of the supporting portion 34 contacting the second magnetic portion 28 can be a plane, but is not limited thereto. For example, in another embodiment, the surface 35 can be a concave curved surface or a concave curved surface.

In this embodiment, the first magnetic portion 24 may preferably be a magnet, and the second magnetic portion 28 may preferably be a magnet or composed of a magnetically permeable material (eg, iron or other metal), but is not affected by this. In other words, in another embodiment, the first magnetic portion 24 may be composed of a magnetically permeable material (eg, iron or other metal), and the second magnetic portion 28 may be a magnet.

Please refer to FIG. 4, which is an exploded view of the keyboard 10 of FIG. 1. As shown in FIG. 4, the keyboard 10 may further include a circuit board 52, a light emitting diode layer 54, and a film layer 56 (such as Mylar (mylar). ) diaphragm). The circuit board 52 is preferably disposed on the backplane 16 as a thin film circuit board and has a switch 58, such as a membrane switch or other trigger switch, and the first support 20 may additionally have a trigger arm 60 is used to trigger switch 58 to perform a corresponding input function. The light emitting diode layer 54 is disposed between the supporting device 18 and the circuit board 52 for emitting light to the button 12 to provide a button light emitting function. In addition, the light emitting diode and the light guide plate are disposed under the keyboard. The design of the light-emitting diodes that emit light to each button can be designed to produce a power-saving effect by arranging corresponding light-emitting diode layers under each button. A film layer 56 is attached under the bottom plate 16 for supporting the first magnetic portion 24 and providing a waterproof function.

Through the above design, when the keycap 14 is not pressed, the magnetic attraction between the second magnetic portion 28 and the first magnetic portion 24 can maintain the keycap 14 in the unpressed position as shown in FIG. When the keycap 14 is pressed by an external force and the force is sufficient to overcome the magnetic attraction between the second magnetic portion 28 and the first magnetic portion 24 (as shown in FIG. 5), the keycap 14 presses down the first support member 20 and The second support member 22 separates the second magnetic portion 28 from the first magnetic portion 24 and lifts the abutment portion 34, and causes the trigger arm 60 to trigger the switch 58 of the circuit board 52 to perform a corresponding input function. In addition, as can be seen from FIG. 5, in the process of the second magnetic portion 28 being away from the first magnetic portion 24, the magnetic attraction between the second magnetic portion 28 and the first magnetic portion 24 can still magnetically attract the first support member 20. So that the trigger arm 60 can reliably contact the switch 58 of the hair board 52 without floating or rebounding, the electrical signal generated by the triggering of the circuit board 52 can be more stable.

On the other hand, when the force applied to the keycap 14 is released, the magnetic attraction between the second magnetic portion 28 and the first magnetic portion 24 magnetically attracts the second magnetic portion 28 to bring the second magnetic portion 28 toward the first The magnetic portion 24 is attracted to the first magnetic portion 24, thereby driving the keycap 14 to move back to the unpressed position as shown in FIG. 3 by the pressing position as shown in FIG. 5, thereby generating the key cap 14 to be automatically returned. The effect of the bit.

It should be noted that, as shown in FIG. 3 and FIG. 5 , the bottom plate 16 may further have a receiving groove 62 and a buffering member 64 (such as damping oil or rubber), and the receiving groove 62 is formed on the abutting portion 34 . The buffer member 64 is disposed in the accommodating groove 62, whereby the magnetic force between the second magnetic portion 28 and the first magnetic portion 24 magnetically attracts the second magnetic portion 28 to adsorb the second magnetic portion 28 to During the process on the first magnetic portion 24, the cushioning member 64 can provide cushioning to the abutting portion 34 to reduce the noise generated when the second magnetic portion 28 collides with the first magnetic portion 24. In addition, the abutting portion 34 is preferably composed of a magnetic conductive material, whereby the abutting portion 34 can be magnetized by the magnetic attraction between the second magnetic portion 28 and the first magnetic portion 24 The two magnetic portions 28 are such that the second support member 22 can be surely interlocked with the second magnetic portion 28 of the first support member 20.

Please refer to FIG. 6 , which is a partially enlarged schematic view of a keyboard 100 according to another embodiment of the present invention. In order to clearly show the design of the button 12 and the bottom plate 102 , the key cap 14 and the limit frame are omitted in FIG. 6 . Figure 46 shows. The components in this embodiment that have the same symbols as those in the above-mentioned embodiments represent similar structures or functions, and the related descriptions are not described herein. The keyboard 100 is mainly different from the keyboard 10 described above in the structural design of the bottom plate 102. As shown in FIG. 6, the keyboard 100 includes a plurality of buttons 12 (one shown in FIG. 6, but not limited thereto) and a bottom plate 102. The bottom plate 102 has a first magnetic portion 24 (shown in broken lines in FIG. 6) and at least one first bent clamping arm 104 (two shown in FIG. 6, but not limited thereto), and the second magnetic portion The first abutting edge S _{1 of} the first supporting member 20 extends from the first abutting edge S ₁ to the second supporting member 22 and corresponds to the first magnetic portion 24 . In this embodiment, the first bending clamping arm 104 is preferably L-type (but not limited thereto) and the inclined surface may have a first stopper portion 106 bent from the free end of the clamp arm 104 extends downwardly and laterally P ₃ is formed. In addition, the bottom plate 102 may further have a second bending clamping arm 108. In this embodiment, the second bending clamping arm 108 may preferably be L-shaped (but not limited thereto) and may have a bevel limit. The portion 110 is formed laterally and downwardly from the free end portion P _{4 of the} second bending clamp arm 108.

In this way, when the first connecting hole portion 30 of the first supporting member 20 is pushed toward the first bending clamping arm 104 to allow the first bending clamping arm 104 to pass through the first connecting hole portion 30, the inclined surface The limiting portion 106 can abut the inner hole edge 42 of the first connecting hole portion 30 to limit the displacement of the first supporting member 20 relative to the bottom plate 102, thereby detachably connecting the first supporting member 20 to the bottom plate 102. The first bending clamping arm 104 presses the first connecting hole portion 30 so that the first abutting edge S ₁ can reliably abut the bottom plate 102 , whereby the first supporting member 20 can be the first abutting edge S ₁ is pivoted relative to the bottom plate 102 for the pivot axis. Similarly, when the second connecting hole portion 38 of the second supporting member 22 is pushed toward the second bending clamping arm 108 to pass the second bending clamping arm 108 to the second connecting hole portion 38, the slope limit is The position portion 110 can abut the inner hole edge 44 of the second connecting hole portion 38 to restrict the displacement of the second support member 22 relative to the bottom plate 102, so that the second support member 22 is detachably coupled to the bottom plate 102, and at the same time, The second bending clamping arm 108 presses the second connecting hole portion 38 so that the second abutting edge S ₂ can reliably abut the bottom plate 102, whereby the second supporting member 22 can be the second abutting edge S ₂ The pivoting shaft is pivoted relative to the bottom plate 102 such that the keycap 14 is movable between the unpressed position and the depressed position with the pivoting of the first support member 20 and the second support member 22. For other related descriptions of the keyboard 100, reference may be made to the analogy of the above embodiment, and details are not described herein again.

Please refer to FIG. 7 , which is a partially enlarged schematic view of a keyboard 200 according to another embodiment of the present invention. In order to clearly show the design of the button 202 and the bottom plate 204 , the key cap 14 is shown by a dotted line in FIG. 7 . . The components in this embodiment that have the same symbols as those in the above-mentioned embodiments represent similar structures or functions, and the related descriptions are not described herein. As shown in FIG. 7, the keyboard 200 includes a plurality of buttons 202 (one shown in FIG. 7, but not limited thereto) and a bottom plate 204 that includes a keycap 14 and a support device 206. The support device 206 is disposed between the keycap 14 and the bottom plate 204 and includes a first support member 208 and a second support member 210. The bottom plate 204 has a first magnetic portion 24 (shown in broken lines in FIG. 7), at least one The first bending clamping arm 212 (showing one in Figure 7, but not limited thereto), and the second limiting bending plate member 214 are spaced apart, in this embodiment, the first bending clamping arm 212 Preferably, the L-shaped (but not limited thereto), the bending limit arm 216 (preferably stepped, but not limited thereto) from the first abutting edge S _{1 of the} first support member 208 The second limit bending plate member 214 is formed to extend. In addition, the bottom plate 204 may further have a second bending clamping arm 218 and two spaced-apart bending plate members 220. In this embodiment, the second bending clamping arm 218 may preferably be L-shaped ( But not limited to this, the bending limit arm 222 (preferably stepped, but not limited thereto) from the second abutting edge S _{1 of the} second supporting member 210 to the second limiting bending plate 220 Extended formation.

In this way, when the first connecting hole portion 30 of the first supporting member 208 is pushed toward the first bending clamping arm 212 to pass the first bending clamping arm 212 to the first connecting hole portion 30, the bending is performed. The folding limit arm 216 is inserted between the two limiting bending plates 214 to limit the displacement of the first supporting member 208 relative to the bottom plate 204, so that the first supporting member 208 is detachably connected to the bottom plate 204, and at the same time, The first bending clamping arm 212 presses the first connecting hole portion 30 so that the first abutting edge S ₁ can reliably abut the bottom plate 204 , whereby the first supporting member 208 can be the first abutting edge S _{1 .} Pivoting relative to the bottom plate 204 for pivoting the shaft. Similarly, when the second connecting hole portion 38 of the second supporting member 210 is pushed toward the second bending clamping arm 218 to pass the second bending clamping arm 218 to the second connecting hole portion 38, the bending is performed. The limiting arm 222 is interposed between the two limiting bending plate members 220 to limit the displacement of the second supporting member 210 relative to the bottom plate 204, so that the second supporting member 210 is detachably coupled to the bottom plate 204, and at the same time, The second bending clamping arm 218 presses the second connecting hole portion 38 so that the second abutting edge S ₂ can reliably abut the bottom plate 204, whereby the second supporting member 210 can be the second abutting edge S ₂ The pivot shaft pivots relative to the bottom plate 204 such that the keycap 14 is movable between the unpressed position and the depressed position with the pivoting of the first support 208 and the second support 210. For other related descriptions of the keyboard 200, reference may be made to the analogy of the above embodiment, and details are not described herein again.

In addition, in this embodiment, the bottom plate 204 may further have at least one protruding limiting groove structure 224 (four shown in FIG. 7 , but not limited thereto), the first supporting member 208 and the second supporting member The member 210 is supported by the keycap 14 and the keycap 14 can have a limiting ear portion 226 corresponding to the protruding limiting slot structure 224, whereby the limiting ear portion 226 can be inserted into the protruding limiting slot structure 224 for direct positioning. The key cap 14 is on the bottom plate 204 so that the bottom plate 204 does not need to be additionally configured with a limit frame to position the keycap 14.

In summary, the keyboard provided by the present invention can omit the configuration of the scissor-foot mechanism and the elastic member in the conventional button, thereby effectively reducing the space required for the overall button, so as to facilitate the subsequent thinning of the keyboard, and Effectively extend the life of the button. The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

10, 100, 200‧‧‧ keyboard
12, 202‧‧‧ button
14‧‧‧Key Cap
16, 102, 204‧‧‧ bottom plate
18, 206‧‧‧ support device
20, 208‧‧‧ first support
22, 210‧‧‧second support
24‧‧‧First Magnetic Department
25, 35‧‧‧ surface
26, 104, 212‧‧‧ first bending clamp arm
28‧‧‧Second Magnetic Department
30‧‧‧First connection hole
32, 40‧‧‧Bending Limits
34‧‧‧Support Department
36, 108, 218‧‧‧ second bending clamp arm
38‧‧‧Second connection hole
42, 44‧‧‧ Inner hole edge
46‧‧‧Limited framework
48‧‧‧Magnetic parts
50, 226‧‧‧ Limit ear
52‧‧‧ boards
54‧‧‧Lighting diode layer
56‧‧‧film layer
58‧‧‧ switch
60‧‧‧ trigger arm
62‧‧‧ accommodating slots
64‧‧‧ cushioning parts
106‧‧‧Slope Limiting Department
214, 220‧‧‧ Limit bending plate
216, 222‧‧‧ bending limit arm
224‧‧‧Outstanding limit slot structure
P ₁ , P ₂ , P ₃ , P ₄ ‧‧‧ free end
S ₁ ‧‧‧first abutment edge
S ₂ ‧‧‧second abutment edge

1 is a partial top view of a keyboard in accordance with an embodiment of the present invention. Figure 2 is a perspective view of the keyboard of Figure 1. Figure 3 is a schematic cross-sectional view of the keyboard of Figure 1 along section line A-A. Figure 4 is a schematic exploded view of the keyboard of Figure 1. Fig. 5 is a schematic cross-sectional view showing the key cap of Fig. 3 pressed to the pressing position. Figure 6 is a partially enlarged schematic view of a keyboard according to another embodiment of the present invention. Figure 7 is a partially enlarged schematic view of a keyboard according to another embodiment of the present invention.

10‧‧‧ keyboard

12‧‧‧ button

14‧‧‧Key Cap

16‧‧‧floor

18‧‧‧Support device

20‧‧‧First support

22‧‧‧second support

24‧‧‧First Magnetic Department

26‧‧‧First bending clamp arm

28‧‧‧Second Magnetic Department

30‧‧‧First connection hole

32‧‧‧Bending Limits

34‧‧‧Support Department

36‧‧‧Second bending clamp arm

38‧‧‧Second connection hole

42, 44‧‧‧ Inner hole edge

46‧‧‧Limited framework

48‧‧‧Magnetic parts

50‧‧‧ Limit ear

54‧‧‧Lighting diode layer

60‧‧‧ trigger arm

P ₁ , P ₂ ‧‧‧ free end

S ₁ ‧‧‧first abutment edge

S ₂ ‧‧‧second abutment edge

Claims (22)

A button comprising: a bottom plate having a first magnetic portion and at least one first bent clamping arm; a keycap; and a supporting device disposed between the bottom plate and the key cap and including a a first supporting member and a second supporting member, a second magnetic portion extending from the first abutting edge of the first supporting member to the second supporting member and corresponding to the first magnetic portion, a first connecting hole And extending from the first abutting edge of the first supporting member to the at least one first bending clamping arm, the at least one first bending clamping arm is disposed in the first connecting hole portion to pass through the first connecting hole portion The first connecting hole portion presses the first abutting edge to abut the bottom plate, and a supporting portion extends from the second abutting edge of the second supporting member to the first supporting member to support the second magnetic Wherein, when the keycap is not pressed, a magnetic attraction between the second magnetic portion and the first magnetic portion maintains the keycap in the unpressed position; when the keycap is pressed by an external force The second magnetic portion is pivoted with respect to the first abutting edge of the first support member When the second support member is pivoted away from the second abutting edge to move away from the first magnetic portion and the support portion is lifted, the key cap is moved to the support device by the unpressed position Pressing a position; when the external force is released, the magnetic force causes the second magnetic portion to be close to the first magnetic portion such that the key cap moves from the pressing position back to the unpressed position with the supporting device. The button of claim 1, wherein a bending limiting portion is formed laterally and downwardly from a free end of the at least one first bending clamping arm, when the at least one first bending is clamped When the arm is disposed in the first connecting hole portion, the bending limiting portion abuts an inner hole edge of the first connecting hole portion to limit displacement of the first supporting member relative to the bottom plate. The button of claim 1, wherein a slope limiting portion is formed laterally and downwardly from a free end of the at least one first bending clamping arm, and the at least one first bending clamping arm When the first connecting hole portion is disposed, the slope limiting portion abuts an inner hole edge of the first connecting hole portion to limit displacement of the first supporting member relative to the bottom plate. The button of claim 1, wherein the bottom plate further has two spaced-apart bending plates arranged at intervals, and a bending limiting arm extends from the first abutting edge of the first supporting member to the second limiting edge The folding plate member is formed to extend between the two limiting bending plates to limit the at least one first bending clamping arm when the first bending clamping arm is disposed in the first connecting hole portion The displacement of the first support member relative to the bottom plate. The button of claim 1, wherein the first connecting hole portion is recessed relative to the first abutting edge such that the at least one first bending clamping arm contacts one of the first connecting hole portions. Coaxial with the first abutting edge. The button of claim 1, wherein the bottom plate further has a limiting frame to enable the key cap to be movably disposed in the limiting frame, the key cap having at least one limit extending toward the limiting frame And a limiting frame that stops the at least one limiting ear to limit a height of the keycap relative to the bottom plate. The button of claim 6, wherein the limiting frame has at least one magnetic member, the bottom plate is composed of a magnetic material, and the at least one magnetic member magnetically attracts the bottom plate to position the limiting frame on the bottom plate. . The button of claim 1, wherein the bottom plate further has at least one protruding stop groove structure, the first support member and the second support member abut the key cap and the key cap has at least one protruding limit One of the slot structures limits the ear portion, and the limit ear portion is inserted into the protruding limit slot structure to position the key cap on the bottom plate. The button of claim 1, wherein the bottom plate further has a receiving groove and a buffering member, the receiving groove is formed under the supporting portion, and the buffering member is disposed in the receiving groove to provide buffering to the support Arrival. The button of claim 1, wherein the bottom plate further has at least one second bending clamping arm, and the second abutting edge of the second supporting member extends toward the at least one second bending clamping arm. a second connecting hole portion, the at least one second bending clamping arm is disposed in the second connecting hole portion to press the second abutting edge to abut the bottom plate via the second connecting hole portion. The button of claim 1, wherein the abutting portion is composed of a magnetically permeable material. A keyboard comprising: a bottom plate having a first magnetic portion and at least one first bent clamping arm; and a plurality of buttons disposed on the bottom plate, at least one of the plurality of buttons comprising: a keycap; and a supporting device disposed between the bottom plate and the keycap and including a first support member and a second support member, a second magnetic portion being firstly received from one of the first support members The connecting edge extends toward the second supporting member and corresponds to the first magnetic portion. A first connecting hole portion extends from the first abutting edge of the first supporting member to the at least one first bent clamping arm. The at least one first bending clamp arm is disposed in the first connecting hole portion to press the first abutting edge to abut the bottom plate via the first connecting hole portion, and an abutting portion from the second supporting member One of the second abutting edges extends toward the first supporting member to support the second magnetic portion; wherein, when the key cap is not pressed, the second magnetic portion and the first magnetic portion a magnetic attraction maintains the keycap in the unpressed position; when the key Pressing by an external force causes the second magnetic portion to pivot with the first supporting member relative to the first abutting edge and pivoting the second supporting member relative to the second abutting edge with the first magnetic portion When the distance is raised and the support portion is lifted, the key cap is moved to the pressing position by the supporting device from the unpressed position; when the external force is released, the magnetic force causes the second magnetic portion and the first magnetic portion Proximity causes the keycap to move from the depressed position back to the undepressed position with the support device. The keyboard of claim 12, wherein a bending limiting portion is formed laterally and downwardly from a free end of the at least one first bending clamping arm, when the at least one first bending is clamped When the arm is disposed in the first connecting hole portion, the bending limiting portion abuts an inner hole edge of the first connecting hole portion to limit displacement of the first supporting member relative to the bottom plate. The keyboard of claim 12, wherein a slope limiting portion is formed laterally and downwardly from a free end of the at least one first bending clamping arm, wherein the at least one first bending clamping arm When the first connecting hole portion is disposed, the slope limiting portion abuts an inner hole edge of the first connecting hole portion to limit displacement of the first supporting member relative to the bottom plate. The keyboard of claim 12, wherein the bottom plate further has two spaced-apart bending plates arranged at intervals, and a bending limiting arm extends from the first abutting edge of the first supporting member to the second limiting edge The folding plate member is formed to extend between the two limiting bending plates to limit the at least one first bending clamping arm when the first bending clamping arm is disposed in the first connecting hole portion The displacement of the first support member relative to the bottom plate. The keyboard of claim 12, wherein the first connecting hole portion is sunken relative to the first abutting edge such that the first bending clamping arm contacts one of the first connecting hole portions and the pressing position The first abutment edge is coaxial. The keyboard of claim 12, wherein the bottom plate further has a limiting frame to enable the keycap to be movably disposed in the limiting frame, the keycap having at least one limit extending toward the limiting frame And a limiting frame that stops the at least one limiting ear to limit a height of the keycap relative to the bottom plate. The keyboard of claim 17, wherein the limiting frame has at least one magnetic member, the bottom plate is composed of a magnetic conductive material, and the at least one magnetic member magnetically attracts the bottom plate to position the limiting frame on the bottom plate. . The keyboard of claim 12, wherein the bottom plate further has at least one protruding stop groove structure, the first support member and the second support member abut the key cap and the key cap has at least one protruding limit One of the slot structures limits the ear portion, and the limit ear portion is inserted into the protruding limit slot structure to position the key cap on the bottom plate. The keyboard of claim 12, wherein the bottom plate further has a receiving groove and a buffering member, the receiving groove is formed under the supporting portion, and the buffering member is disposed in the receiving groove to provide buffering to the support Arrival. The keyboard of claim 12, wherein the bottom plate further has at least one second bending clamping arm, and the second abutting edge of the second supporting member extends toward the at least one second bending clamping arm. a second connecting hole portion, the at least one second bending clamping arm is disposed in the second connecting hole portion to press the second abutting edge to abut the bottom plate via the second connecting hole portion. The keyboard of claim 12, wherein the abutting portion is comprised of a magnetically permeable material.