TWI402879B - Keyboard and electronic device utilizing the same - Google Patents

Description

Keyboard and electronic device using the same

The present invention relates to a keyboard and an electronic device using the same.

Generally, electronic devices such as computers and mobile phones use a keyboard as an input device, and when a person inputs with a keyboard, there is only one type of pressing force of the button. When using a force keyboard for a long time, it is easy to cause fatigue

In view of the above, it is necessary to provide a keyboard with a button press adjustable, which can adjust its pressing force as needed.

A keyboard includes a bottom plate, a top plate and a button. The bottom plate is formed with a side wall. The top plate is further provided with a button through hole. The button is located in the through hole. The keyboard further includes a substrate, an electromagnet, a rotating portion and an elastic member. The substrate is fixed to the side wall, and the substrate is formed with a groove. The side wall of the groove is formed with a step. The bottom of the groove is formed with a mounting hole, and the electromagnet is fixed to the bottom of the groove. The rotating portion is located on the step, and is annular, and includes a through hole. The rotating portion faces the bottom surface of the bottom of the groove and is provided with a first magnet and a second magnet. The magnetic properties of the first magnet and the second magnet Instead, the top surface of the rotating portion is provided with a third magnet. The bottom of the button is formed with an extending portion, and the extending portion is slidably connected to the mounting hole through a through hole of the rotating portion. The bottom of the button is further provided with a fourth magnet, and the fourth magnet is magnetically identical to the third magnet. When the electromagnet passes the current in the first direction, the first magnet is attracted to drive the rotating portion to the first position, and the third magnet is aligned with the fourth magnet; when the electromagnet is in a current opposite to the first direction The second magnet is attracted to drive the rotating portion to the second position, and the third magnet is away from the fourth magnet. Both ends of the elastic member respectively interfere with the button and the substrate.

The invention also provides an electronic device, comprising a keyboard, comprising a bottom plate, a top plate and a button, the bottom plate is formed with a side wall, the top plate is further provided with a button through hole, the button is located in the through hole, the keyboard further comprises a substrate and an electromagnet , rotating parts and elastic parts. The substrate is fixed to the side wall, and the substrate is formed with a groove. The side wall of the groove is formed with a step. The bottom of the groove is formed with a mounting hole, and the electromagnet is fixed to the bottom of the groove. The rotating portion is located on the step, and is annular, and includes a through hole. The rotating portion faces the bottom surface of the bottom of the groove and is provided with a first magnet and a second magnet. The magnetic properties of the first magnet and the second magnet Instead, the top surface of the rotating portion is provided with a third magnet. The bottom of the button is formed with an extending portion, and the extending portion is slidably connected to the mounting hole through a through hole of the rotating portion. The bottom of the button is further provided with a fourth magnet, and the fourth magnet is magnetically identical to the third magnet. When the electromagnet passes the current in the first direction, the first magnet is attracted to drive the rotating portion to the first position, and the third magnet is aligned with the fourth magnet; when the electromagnet is in a current opposite to the first direction The second magnet is attracted to drive the rotating portion to the second position, and the third magnet is away from the fourth magnet. Both ends of the elastic member respectively interfere with the button and the substrate.

By utilizing the interaction between the magnets, the user can adjust the pressing force of the keyboard keys according to the requirements, thereby reducing the fatigue of the user.

Referring to FIG. 1 and FIG. 2 , a keyboard 10 is provided with a button pressable force. The keyboard 10 includes a bottom plate 11 , a top plate 12 and a button 13 . The bottom plate 11 is formed with a side wall 14 , and the top plate 12 is further provided with a button through hole 15 . 13 is located in the button through hole 15. The keyboard 10 further includes a substrate 16, an electromagnet 17, a rotating portion 18, and an elastic member 19.

The substrate 16 is fixed to the side wall 14, and the substrate 16 is formed with a groove 20. The bottom of the groove 20 is formed with a semicircular step 21, and the bottom of the groove is formed with a fitting hole 22, and the electromagnet 17 is fixed to the bottom of the groove 20.

Referring to FIG. 3 together, the rotating portion 18 is located on the step 21 and is annular, and includes a through hole 23. The bottom surface of the rotating portion 18 facing the bottom of the groove 20 is provided with a first magnet 24 and a second magnet 25, the magnetic properties of the first magnet 24 and the second magnet 25 are opposite, and the top surface of the rotating portion 18 is provided with a third magnet 26.

Referring to FIG. 4 and FIG. 5 together, an extension portion 27 is formed at the bottom of the button 13, and the extension portion 27 is slidably coupled to the fitting hole 22. A fourth magnet 28 is also provided at the bottom of the button 13, and the fourth magnet 28 is magnetically identical to the third magnet 26. When the electromagnet 17 passes the current in the first direction, the first magnet 24 is attracted, thereby rotating the rotating portion 18 to the first position, at which time the third magnet 26 is aligned with the fourth magnet 28; when the electromagnet 17 is connected When the first direction reverses the current, the second magnet 25 is attracted, thereby rotating the rotating portion 18 to the second position, at which time the third magnet 26 is away from the fourth magnet 28;

Both ends of the elastic member 19 are in contact with the button 13 and the substrate 16, respectively, and the elastic member 19 is in a compressed state. In the present embodiment, the elastic member 19 is a spring.

In a preferred embodiment, the specific structure of the components of the keyboard 10 is as follows.

In the embodiment, the end of the extending portion 27 is further formed with a hook 29, the extending portion 27 passes through the through hole 23 of the rotating portion 18, and the gap between the extending portion 27 and the through hole 23 is provided, and the hook 29 is fixed on the substrate. 16.

When the electromagnet 17 is energized in the first direction, the electromagnet 17 attracts the first magnet 24 to rotate the rotating portion 18 to a predetermined angle, at which time the rotating portion 18 is in the first position, and the third magnet 26 is aligned with the fourth magnet 28. Since the button 13 is subjected to the repulsive force between the magnets, the user needs to overcome the resistance of the repulsive force between the elastic member 19 and the third magnet 26 and the fourth magnet 28 when the button 13 is pressed, and the pressing force of the button 13 is the first. Press force. When the electromagnet 17 is energized with a current opposite to the first direction, the electromagnet 17 attracts the second magnet 25 to rotate the rotating portion 18 to a predetermined angle, at which time the rotating portion is in the second position, and the third magnet 26 is away from the fourth magnet. 28, since the button 13 is weakened by the repulsive force between the magnets, the resistance of the user to press the button 13 to overcome the repulsive force between the elastic member 19 and the third magnet 26 and the fourth magnet 28 is also small, and at this time, the button 13 is Press force as the second force. The second pressing force of the button 13 is smaller than the first pressing force.

The first magnet 24, the second magnet 25, the third magnet 26, and the fourth magnet 28 are all magnets or magnetically permeable metals.

By changing the magnetic properties of the electromagnet 17, the rotating portion 18 is rotated to a predetermined angle, and the magnetic force between the button 13 and the rotating portion 18 is changed, so that the pressing force of the button 13 is adjusted.

In order to make the button 13 more evenly balanced, the bottom of the button 13 and the side of the rotating portion 18 facing the button 13 may be provided with a plurality of adapted magnets.

It can be understood that an electronic device such as a mobile phone can also adopt the entire structure of the keyboard 10 described above, so that the electronic device has a keyboard with a button press adjustable.

10‧‧‧ keyboard

11‧‧‧floor

12‧‧‧ top board

13‧‧‧ button

14‧‧‧ side wall

15‧‧‧Key through hole

16‧‧‧Substrate

17‧‧‧Electromagnet

18‧‧‧Rotation

19‧‧‧Flexible parts

20‧‧‧ Groove

21 ‧ ‧ steps

22‧‧‧Assembly holes

23‧‧‧through hole

24‧‧‧First magnet

25‧‧‧Second magnet

26‧‧‧ Third magnet

27‧‧‧Extension

28‧‧‧4th magnet

29‧‧‧ hook

1 is a schematic view of a keyboard in an embodiment of the present invention.

2 is an exploded view of a keyboard in one embodiment of the present invention.

3 is a schematic view showing a rotating portion of a keyboard in an embodiment of the present invention.

4 is a schematic diagram of a key of a keyboard in an embodiment of the present invention.

Figure 5 is a cross-sectional view of the keyboard in one embodiment of the present invention.

10‧‧‧ keyboard

13‧‧‧ button

Claims (8)

A keyboard includes a bottom plate, a top plate and a button, the bottom plate is formed with a side wall, and the top plate is further provided with a button through hole, wherein the button is located in the through hole, the improvement is that the keyboard further comprises a substrate, an electromagnet, a rotating portion and Elastic member
The substrate is fixed to the sidewall, the substrate is formed with a groove, the sidewall of the groove is formed with a step, and the bottom of the groove is formed with a mounting hole, and the electromagnet is fixed to the bottom of the groove;
The rotating portion is located on the step, the rotating portion is annular, and includes a through hole, the rotating portion facing the bottom surface of the bottom of the groove is provided with a first magnet and a second magnet, the first magnet and the second magnet Opposite to the magnetic, the top surface of the rotating portion is provided with a third magnet;
The bottom of the button is formed with an extending portion, and the extending portion is slidably connected to the mounting hole through a through hole of the rotating portion. The bottom of the button is further provided with a fourth magnet, and the fourth magnet is magnetically identical to the third magnet. When the electromagnet passes the current in the first direction, the first magnet is attracted to drive the rotating portion to the first position, and the third magnet is aligned with the fourth magnet; when the electromagnet is in a current opposite to the first direction a second magnet is attracted to drive the rotating portion to the second position, and the third magnet is away from the fourth magnet;
Both ends of the elastic member respectively interfere with the button and the substrate. The keyboard of claim 1, wherein the elastic member is a spring, and the elastic member is in a compressed state. The keyboard of claim 1, wherein the end of the extension is further formed with a hook, and the hook is fastened to the substrate. The keyboard of claim 1, wherein the first magnet, the second magnet, the third magnet, and the fourth magnet are both magnets or magnetically permeable metals. An electronic device includes a keyboard, which includes a bottom plate, a top plate and a button. The bottom plate is formed with a side wall. The top plate is further provided with a button through hole, and the button is located in the through hole. The improvement is that the keyboard further includes a substrate and an electromagnet. , rotating portion and elastic member;
The substrate is fixed to the sidewall, the substrate is formed with a groove, the sidewall of the groove is formed with a step, and the bottom of the groove is formed with a mounting hole, and the electromagnet is fixed to the bottom of the groove;
The rotating portion is located on the step, the rotating portion is annular, and includes a through hole, the rotating portion facing the bottom surface of the bottom of the groove is provided with a first magnet and a second magnet, the first magnet and the second magnet Opposite to the magnetic, the top surface of the rotating portion is provided with a third magnet;
The bottom of the button is formed with an extending portion, and the extending portion is slidably connected to the mounting hole through a through hole of the rotating portion. The bottom of the button is further provided with a fourth magnet, and the fourth magnet is magnetically identical to the third magnet. When the electromagnet passes the current in the first direction, the first magnet is attracted to drive the rotating portion to the first position, and the third magnet is aligned with the fourth magnet; when the electromagnet is in a current opposite to the first direction a second magnet is attracted to drive the rotating portion to the second position, and the third magnet is away from the fourth magnet;
Both ends of the elastic member respectively interfere with the button and the substrate. The electronic device of claim 5, wherein the elastic member is a spring, and the elastic member is in a compressed state. The electronic device of claim 5, wherein the end of the extending portion is further formed with a hook, and the hook is fixed to the substrate. The electronic device of claim 5, wherein the first magnet, the second magnet, the third magnet, and the fourth magnet are both magnets or magnetically permeable metals.