TWM561847U - Touch panel with noise reduction function - Google Patents

Abstract

A touch panel with a noise reduction function includes a lower board unit, an upper board unit, a trigger unit, and a noise reduction component. The lower plate unit includes a lower inner surface and a lower end edge. The upper plate unit includes an inner surface facing the lower inner surface and an upper edge portion opposite to the lower end edge. The upper end edge may be closer or further away from the lower end edge. The trigger unit includes a touch switch and a touch member. The trigger member can trigger the touch switch when the upper end edge approaches the lower end edge portion. The noise reduction element has a hollow surrounding shape and includes an inner edge, an outer edge, and an inner end surface connected between the inner edge and the outer edge, the inner end surface pressingly abutting the touch switch. The novel reduces the high frequency noise by the noise reduction component, and the noise reduction component can also be assembled simply and directly.

Description

Trackpad with noise reduction

The present invention relates to a touch panel, and more particularly to a touch panel with a noise reduction function.

In recent years, electronic products not only pursue better performance in terms of main functions, but also often have many considerations for the user's experience. For the marketability of products, the importance is self-evident. Noise is often a negative effect associated with electronic products, especially high-frequency noise is particularly harsh, so reducing high-frequency noise has become an important issue. Referring to Figures 1 and 2, one is available.

As disclosed in the touch device disclosed in Japanese Patent Publication No. 201237699, the noise at the time of contact is reduced by an elastic trigger portion during the pressing process. However, when the aforementioned device is used, high-frequency noise is inevitably generated, and the assembly is also complicated due to factors such as small components and many components, which indirectly increases the cost of production.

Accordingly, it is an object of the present invention to provide a touch panel having a noise reduction function that is simple and straightforward in assembly and that can preferably reduce high frequency noise.

Therefore, the novel touch panel with noise reduction function comprises a lower panel unit, an upper panel unit, a trigger unit, and a noise reduction component. The lower plate unit includes a lower inner surface, a lower pivoting member disposed on a side of the lower inner surface, and a lower edge portion opposite to the lower pivoting member and disposed on the other lower side of the lower inner surface. The upper plate unit is spaced apart from and overlaps with the lower plate unit, and includes an inner surface facing the lower inner surface, a side disposed on the upper inner surface and pivotally connected to the lower pivot member. And a portion opposite to the upper pivotal member and opposite the upper end edge portion. The upper end edge may be closer or further away from the lower end edge. The trigger unit includes a touch switch embossed on one of the upper inner surface and the lower inner surface, and a touch member embossed on the upper inner surface and the lower inner surface relative to the touch switch . The touch switch has a peripheral edge. The trigger member can trigger the touch switch when the upper end portion approaches the lower end edge portion. The noise reduction component is a soft material and has a hollow surrounding shape, and includes an inner edge defining an inner hole, an outer edge opposite to the inner edge, and a inner portion connecting the inner edge and the outer edge End face. The trigger switch extends in the inner hole, and the inner end surface is tightly pressed against the circumference of the touch switch. The noise reduction element is compressed as the upper end edge approaches the lower end edge.

The utility model has the advantages that the high-frequency noise can be reduced by the setting of the noise-reducing component, and the noise-reducing component can also be assembled simply and directly, which indirectly reduces the cost of the novel.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , an embodiment of the touch panel with noise reduction function includes a lower panel unit 1 , an upper panel unit 2 , a trigger unit 3 , and a noise reduction component 4 .

The lower plate unit 1 includes a lower plate main body 11 and is integrally connected to the lower pivoting member 12 of the lower plate main body 11. The lower plate main body 11 has a lower inner surface 111 and a side disposed on the lower inner surface 111 and opposite to the lower end edge portion 112 of the lower pivot member 12. The lower pivoting member 12 has six pivot holes 121.

The upper board unit 2 is spaced apart from and overlaps with the lower board unit 1 and includes a circuit board 21, a glass back board 22, a carrier member 23 for carrying the circuit board 21, and a lower pivoting member 12 pivotally connects the upper pivot members 24 to each other. The circuit board 21 has an upper surface 211 facing the lower inner surface 111, an upper outer surface 212 opposite to the upper inner surface 211, and an opposite upper pivoting member 24 opposite to the lower end edge portion 112. The upper end portion 213. The upper end edge portion 213 is disposed on one side of the upper inner surface 211 and is movable toward or away from the lower end edge portion 112. The glass backing plate 22 is adhered to the upper outer surface 212. The carrier 23 is positioned on the upper inner surface 211, and the upper pivoting member 24 is coupled to the carrier 23 and has a three-metal spring 241. Each of the metal domes 241 corresponds to two of the pivot holes 121 and is respectively pivotally connected to the corresponding pivot hole 121.

The trigger unit 3 includes a touch switch 31 embossed on the upper inner surface 211, and a contact member 32 that is embossed relative to the touch switch 31 and protrudes from the lower inner surface 111. The touch switch 31 has a peripheral edge 311 and a strike portion 312 disposed in the peripheral edge 311. When the upper end edge portion 213 approaches the lower end edge portion 112, the touch portion 312 comes into contact with the trigger member 32 and triggers the touch switch 31. It should be noted that in the embodiment, the touch switch 31 and the trigger member 32 respectively converge on the upper inner surface 211 and the lower inner surface 111, but the touch switch 31 and the touch member 32 may also float separately. The lower inner surface 111 and the upper inner surface 211 (not shown) are protruded.

The noise reduction element 4 is disposed outside the touch switch 31 in a hollow manner and adheres to the circuit board 21, and extends from the upper inner surface 211 of the upper plate unit 2 toward the lower inner surface 111 of the lower plate unit 1. . The noise reduction component 4 includes an inner edge 41 defining an inner hole 411, an outer edge 42 opposite to the inner edge 41, and an inner end surface 43 connected between the inner edge 41 and the outer edge 42. And an outer end surface 44 opposite to the inner end surface 43. The distance between the outer edge 42 and the inner edge 41 is between 2 and 5 millimeters. In the present embodiment, the distance between the outer edge 42 and the inner edge 41 is substantially 3 millimeters. The touch portion 312 of the trigger switch 31 extends in the inner hole 411, and the position of the strike portion 312 is located between the inner end surface 43 and the outer end surface 44. The inner end surface 43 is pressed against the touch. The circumference 311 of the switch 31. The peripheral edge 311 of the touch switch 31 is interposed between the inner edge 41 and the outer edge 42 of the noise reduction element 4. The noise reduction element 4 is made of foam, and when the upper end edge portion 213 is away from the lower end edge portion 112, the outer end surface 44 approaches or abuts against the lower inner surface 111 (as shown in FIG. 3). When the upper end edge portion 213 approaches the lower end edge portion 112, the noise reduction member 4 is compressed, and the outer end surface 44 is pressed against the lower inner surface 111 (not shown). Since the noise reduction element 4 only needs to be simply and directly adhered to the circuit board 21 during assembly, the cost of the present invention is indirectly reduced.

Further, the noise due to the noise is caused by the air vibration caused when the touch switch 31 is triggered. When the touch switch 31 is triggered to generate noise, since the noise reduction element 4 is compressed and the outer end surface 44 is pressed against the lower inner surface 111, the noise reduction element 4 encloses the sound source therein. The hole 411, the upper inner surface 211 and the lower inner surface 111 define a space together, and the inner end surface 43 is pressed against the peripheral edge 311 to suppress the vibration of the touch switch 31, so that the frequency of the vibration is lowered. When the sound wave passes through the noise reduction element 4, the resistance of the air vibration is increased, and the intensity of the vibration is reduced. As described above, the sound wave generation and transmission process preferably reduces the high frequency noise caused by the present invention. In addition, since the reflected sound waves are still transmitted in the closed space and are continuously absorbed, there is a better sound insulation effect. Through experimental measurement, the noise generated by the touch panel of the noise reduction component 4 is generally 65 dB, and the noise reduction function of the touch panel can reduce the noise of the touch to 45 decibels. At the same time, the high frequency part is also effectively attenuated by 40%.

In summary, the novel touch panel with noise reduction function can reduce high frequency noise by the setting of the noise reduction component 4, and the noise reduction component 4 can also be assembled simply and directly, indirectly making the cost of the novel. Reduced, so it can achieve the purpose of this new type.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

1‧‧‧lower unit
11‧‧‧ Lower board main body
111‧‧‧ Lower inner surface
112‧‧‧Bottom edge
12‧‧‧ lower pivot joint
121‧‧‧Pivot hole
2‧‧‧Upper unit
21‧‧‧ boards
211‧‧‧ upper inner surface
212‧‧‧Upper surface
213‧‧‧Upper edge
22‧‧‧glass back
23‧‧‧ Carrying parts
24‧‧‧Upper pivot joint
241‧‧‧Metal shrapnel
3‧‧‧Trigger unit
31‧‧‧Touch switch
311‧‧‧ Periphery
312‧‧‧ Touching Department
32‧‧‧Touching parts
4‧‧‧ Noise reduction components
41‧‧‧ inner edge
411‧‧‧ hole
42‧‧‧ outer edge
43‧‧‧ inner end face
44‧‧‧Outer end face

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is an exploded perspective view of an embodiment of the touch panel with noise reduction function; FIG. A schematic cross-sectional view of an embodiment; and FIG. 3 is a partially enlarged cross-sectional view of FIG.

Claims (8)

A touch panel with a noise reduction function, comprising: a lower panel unit, comprising a lower inner surface, a lower pivoting member disposed on a side of the lower inner surface, and a lower pivoting member disposed opposite the lower pivoting member a lower edge portion of the other side of the inner surface; an upper plate unit spaced apart from and overlapping with the lower plate unit, including an inner surface facing the lower inner surface, a side disposed on the upper inner surface, and the lower portion The pivoting members are pivotally connected to the upper pivoting member, and opposite to the upper pivoting member and opposite to the upper end edge of the lower end edge portion, the upper end edge portion can be approached or away from the lower end edge portion; The trigger unit includes a touch switch embossed on one of the upper inner surface and the lower inner surface, and a touch member embossed on the upper inner surface and the lower inner surface relative to the touch switch The touch switch has a peripheral edge, the trigger member can trigger the touch switch when the upper end edge portion approaches the lower end edge portion; and a noise reduction member is a soft material and has a hollow surrounding shape, including one defining an inner portion The inner edge of the hole, opposite to the outer edge of the inner edge, And an inner end surface connected between the inner edge and the outer edge, the trigger switch extends in the inner hole, the inner end surface is tightly pressed against the circumference of the touch switch, and the upper end edge approaches the lower end At the edge, the noise reduction element is compressed. The touch panel with noise reduction function according to claim 1, wherein the noise reduction element extends from an upper inner surface of the upper plate unit toward a lower inner surface of the lower plate unit. The touch panel with a noise reduction function according to claim 2, wherein the noise reduction component is adhered to the upper panel unit. The touch panel with noise reduction function according to claim 1, wherein the noise reduction element extends from a lower inner surface of the lower plate unit toward an upper inner surface of the upper plate unit. The touch panel with a noise reduction function according to claim 4, wherein the noise reduction component is adhered to the lower panel unit. The touch panel with a noise reduction function according to claim 1, wherein a distance between an outer edge of the noise reduction element and an inner edge is between 2 and 5 mm. The touch panel with a noise reduction function according to claim 1, wherein a circumference of the touch switch is between an inner edge and an outer edge of the noise reduction element. The touch panel with a noise reduction function according to claim 1, wherein the noise reduction element is made of foam.