Patent Grant
11009916
This application claims priority of Taiwanese Utility Model Patent Application No. 109202521, filed on Mar. 6, 2020.
The disclosure relates to a touch input device, and more particularly to a touch input device with noise reduction capability.
A conventional touch input device includes a bottom plate, a touch pad that is spaced apart from the bottom plate, a circuit board that is disposed between the bottom plate and the touch pad, and a resilient metal sheet that is connected to the circuit board and that includes an actuating portion extending toward the bottom plate. A user can touch the touch pad to push the circuit board to move toward the bottom plate, such that the actuating portion comes into contact with the bottom plate to deform the resilient metal sheet and to allow the actuating portion to be in electrical connection with the circuit board to generate a touch signal.
However, the vibration of air within the conventional touch input device, the deformation of the resilient metal sheet, and the contact between the actuating portion and the bottom plate all contribute to noise generated when the conventional touch input device is touched by the user.
Therefore, it is desirable in the art to provide a touch input device with noise reduction capability.
Therefore, an object of the present disclosure is to provide a touch input device that can alleviate at least one of the drawbacks associated with the prior art.
According to this disclosure, a touch input device includes a frame unit, a circuit unit and a touch pad.
The frame unit includes a block member. The circuit unit includes a circuit board, an actuating member, and a noise reduction member. The circuit board is connected to the frame unit and is spaced apart from the block member. The actuating member is dome-shaped and protrudes toward the block member. The actuating member includes an actuating portion and a resilient metal sheet that surrounds the actuating portion and that is connected between the actuating portion and the circuit board. The noise reduction member has a main body which is connected to the resilient metal sheet of the actuating member, which is made of an elastic material, and which is formed with a recess surrounding the actuating portion of the actuating member. The touch pad is connected to the frame unit such that the touch pad and the block member are located respectively at two sides of the circuit board. The touch pad has a touch surface faces away from the circuit unit.
The touch surface of the touch pad is adapted to be touched by a user to push the circuit unit to move toward the block member of the frame unit, such that the actuating portion of the actuating member comes into contact with the block member to deform the resilient metal sheet of the actuating member and to allow the actuating portion to be in electrical connection with the circuit board to generate a touch signal.
Other features and advantages of the disclosure will become apparent in the following detailed description of the embodiment with reference to the accompanying drawings, of which:
Before the disclosure is described in greater detail, it should be noted that where considered appropriate, reference numerals or terminal portions of reference numerals have been repeated among the figures to indicate corresponding or analogous elements, which may optionally have similar characteristics.
Referring to
Referring to
Since the main body 232 of the noise reduction member 23 is made of the elastic material (e.g., sponge, silica gel, etc.), the noise reduction member 23 is capable of absorbing the vibration of the actuating member 22 when the actuating portion 221 comes into contact with the block member 31 and when the resilient metal sheet 222 is deformed. The noise reduction member 23 is also capable of absorbing vibration of air within the touch input device during the touch action. Moreover, the recess 231 allows the air to vibrate therein between the main body 232 of the noise reduction member 23 and the actuating portion 221 of the actuating member 22, which also helps to absorb vibration of the air. It should be noted that the recess 231 may extend partially into the main body 232 of the noise reduction member 23 or penetrate the main body 232.
In the description above, for the purposes of explanation, numerous specific details have been set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one skilled in the art, that one or more other embodiments may be practiced without some of these specific details. It should also be appreciated that reference throughout this specification to “one embodiment,” “an embodiment,” an embodiment with an indication of an ordinal number and so forth means that a particular feature, structure, or characteristic may be included in the practice of the disclosure. It should be further appreciated that in the description, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of various inventive aspects, and that one or more features or specific details from one embodiment may be practiced together with one or more features or specific details from another embodiment, where appropriate, in the practice of the disclosure.
While the disclosure has been described in connection with what are considered the exemplary embodiments, it is understood that this disclosure is not limited to the disclosed embodiments but is intended to cover various arrangements included within the spirit and scope of the broadest interpretation so as to encompass all such modifications and equivalent arrangements.
| Number | Date | Country | Kind |
|---|---|---|---|
| 109202521 | Mar 2020 | TW | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 10521029 | Huang | Dec 2019 | B1 |
| 20140071050 | Armstrong-Muntner | Mar 2014 | A1 |
