CN201149829Y - Elastic component and key using same - Google Patents

Abstract

The utility model discloses a button of elastic component and applied this elastic component. According to the present invention, the key includes a key cap, a substrate, a thin film circuit, an elastic member and a supporting device. The thin film circuit is disposed on the substrate and has a switch thereon. The elastic member is disposed on the thin film circuit and on the switch. The elastic member has at least one vent hole formed at a top portion thereof. The supporting device is movably connected to the keycap and the substrate respectively. The supporting device supports the keycap for vertical movement relative to the substrate, and the elastic member is actuated in response to movement of the keycap to turn on the switch. When the keycap moves towards the substrate, air in the elastic member escapes from the at least one vent hole.

Description

Elastic component and button applying the elastic component

technical field

The utility model relates to an elastic member (deformable member) and a key switch using the elastic member, in particular to the elastic member having at least one vent hole (vent) formed on its top.

Background technique

The keyboard is currently the most common input device, which can be applied to various electronic devices, such as home computers, notebook computers, personal digital assistants or other similar electronic devices. Membrane keyboards have been widely used because they produce less sound when keys are pressed.

During the manufacturing process of membrane keyboard keys, an elastic member is bonded to an insulating layer of a membrane switch circuit. Such an elastic member is deeply affected by the air inside the elastic member during the pressing process. Please refer to FIG. 1 . FIG. 1 is a cross-sectional view of a conventional elastic member 1 . As shown in FIG. 1 , the elastic member 1 itself does not have an exhaust hole, so the elastic member 1 has poor rebound effect after being pressed. Therefore, if the elastic member 1 itself has designed vent holes, it will make the elastic member 1 smoother in the process of pressing and rebounding, so as to improve the smoothness of the user's use of the keyboard.

Utility model content

The purpose of the utility model is to provide an elastic member and a button using the elastic member to solve the above problems.

The purpose of the utility model is achieved by providing a button comprising a keycap, a substrate, a membrane circuit, a deformable member and a supporting device .

The thin film circuit is disposed on the substrate and has a switch thereon. The elastic member is arranged on the film circuit and the switch. The elastic member also has at least one vent hole formed on a top of the elastic member. The supporting device is movably connected to the keycap and the base plate respectively. The supporting device supports the keycap to move vertically relative to the base plate, and the elastic member is actuated in response to the movement of the keycap to turn on the switch. When the keycap moves toward the base plate, the air in the elastic member escapes through the at least one vent hole.

The utility model also provides an elastic member suitable for a button. The elastic member includes an elastic body and at least one vent hole.

The elastic body has a top and contains a cavity therein. The at least one exhaust hole is disposed on the top and communicates with the cavity through the top. When the elastic member is pressed, the air in the cavity escapes into the atmosphere through the at least one vent hole.

The advantage of the utility model is that, compared with the background technology, the utility model is suitable for the elastic component of the button because it has a designed vent hole, which will make the elastic component smoother in the process of being pressed and rebounding, so as to enhance the user's The smoothness of using the keyboard.

The advantages and spirit of the present utility model can be further understood through the following detailed description of the utility model and the accompanying drawings.

Description of drawings

Fig. 1 is the sectional view of existing elastic member;

Fig. 2A is an exploded view of the button of a specific embodiment of the present invention;

Fig. 2B is a cross-sectional view of a button according to a specific embodiment of the present invention;

Fig. 3 is a schematic diagram of the interaction relationship between the keycap and the elastic member;

Fig. 4A is a schematic diagram of an elastic member suitable for a button according to another specific embodiment of the present invention;

Fig. 4B is a cross-sectional view of an elastic member of another specific embodiment of the present invention.

Description of main component symbols

1: Elastic member 2: Button

20: Keycap 22: Substrate

24: Thin film circuit 26: Elastic member

28: Support device 200: Lower surface

202: Piston 240: Switch

260: Exhaust hole 262: Piston guide cylinder

2620: central hole 2622: tower-like part

3: Elastic member 30: Elastic body

32: Exhaust hole 34: Switch contact end

300: top 320: first end

322: second end

Detailed ways

See Figure 2A. FIG. 2A is an exploded view illustrating the button 2 according to an embodiment of the present invention. As shown in FIG. 2A , the button 2 includes a keycap 20 , a substrate 22 , a thin film circuit 24 , an elastic member 26 and a supporting device 28 .

In a specific embodiment, the elastic member 26 may be a dome member. In addition, the elastic member 26 can be made of a rubber or a polymer.

The thin film circuit 24 is disposed on the substrate 22 and has a switch 240 thereon. Corresponding to the switch 240 , the elastic member 26 has a switch contact therein (not shown in FIG. 2A ).

See Figure 2B. FIG. 2B is a cross-sectional view of the button 2 according to a specific embodiment of the present invention.

As shown in FIG. 2B , the supporting device 28 is movably connected to the keycap 20 and the base plate 22 respectively. The supporting device 28 supports the keycap 20 to move vertically relative to the base plate 22 , and the elastic member 26 is actuated in response to the movement of the keycap 20 to turn on the switch 240 . That is, when the switch contact end contacts the switch 240, the switch 240 is turned on.

The elastic member 26 is disposed on the film circuit 24 and the switch 240 . The elastic member 26 also has at least one vent hole 260 formed on a top of the elastic member 26 , and the at least one vent hole 260 passes through the top. When the keycap 20 moves toward the base plate 22 , the air in the elastic member 26 escapes through the at least one exhaust hole 260 .

See Figure 3. FIG. 3 is a schematic diagram illustrating the interaction relationship between the keycap 20 and the elastic member 26 .

As shown in FIG. 3 , the keycap 20 includes a plunger 202 formed on the lower surface 200 of the keycap 20 . To cooperate with the piston 202, the dome member includes a plunger guide 262 formed on the top of the dome member and formed over the switch contact end. The piston guide 262 includes a central aperture (central aperture) 2620 , and the central aperture 2620 is aligned with the switch contact end for positioning.

The piston guide 262 also includes a tower portion 2622 extending from the periphery of the central hole 2620 . In a specific embodiment, the at least one vent 260 may be formed at the tower portion 2622 . In this embodiment, two exhaust holes 260 can be designed to be formed at the tower portion 2622 , but the number of exhaust holes 260 can be designed according to actual needs, and is not limited to two in this example.

See Figure 4A. FIG. 4A illustrates an elastic member 3 suitable for a button according to another embodiment of the present invention.

In a specific embodiment, the elastic member 3 may be a dome member, but not limited thereto.

As shown in FIG. 4A , the elastic member 3 includes an elastic body 30 and at least one vent hole 32 . In practical application, the elastic body 30 can be made of a rubber or a polymer.

The elastic body 30 has a top 300 and contains a cavity therein. See Figure 4B. FIG. 4B is a cross-sectional view illustrating the elastic member 3 according to the present invention.

As shown in FIG. 4B , the at least one exhaust hole 32 is disposed on the top 300 and communicates with the cavity through the top 300 . In a specific embodiment, two exhaust holes 32 can be designed on the top 300, but the number of exhaust holes 32 can be designed according to actual needs, and is not limited to two in this example.

Each exhaust hole 32 has a first end 320 and a second end 322 , the first end 320 communicates with the atmosphere and the second end 322 communicates with the cavity. When the elastic member 3 is pressed, the air in the cavity escapes into the atmosphere through the at least one vent hole 32 .

In practical application, the elastic body 30 also has a switch contact end 34 , and the switch contact end 34 extends downward from the bottom of the top 300 into the cavity.

Compared with the background technology, according to the utility model, the elastic member suitable for keys has a designed vent hole, which will make the elastic member more smooth in the process of being pressed and rebounding, so as to improve the user's comfort when using the keyboard. fluency.

Claims (11)

1. A button, characterized in that it comprises: a keycap; a substrate; a thin film circuit, the thin film circuit is arranged on the substrate and has a switch on the thin film circuit; an elastic member, the elastic member is arranged on the thin film circuit and the thin film circuit On the switch, the elastic member has at least one vent hole formed on a top of the elastic member; and a supporting device, the supporting device is movably connected to the keycap and the substrate respectively, and the supporting device supports the key The cap moves vertically relative to the base plate, wherein the elastic member is actuated in response to the movement of the key cap to open the switch, and when the key cap moves toward the base plate, the air in the elastic member is released by the at least one exhaust The stomata escape. 2. The button according to claim 1, wherein the elastic member has a switch contact end therein, and when the switch contact end touches the switch, the switch is turned on. 3. The key according to claim 2, wherein the elastic member is a dome member. 4. The button according to claim 3, wherein the key cap comprises a piston formed on the lower surface of the key cap, and the dome member comprises a piston formed on the top of the dome member and formed A piston guide sleeve above the switch contact end, the piston guide sleeve includes a central hole and is aligned with the switch contact end for positioning, and the size of the central hole is adapted to engage the piston. 5 . The key according to claim 4 , wherein the piston guide further comprises a tower portion extending from the periphery of the central hole, and the at least one vent hole is formed at the tower portion. 5 . 6. The key according to claim 3, wherein the dome member is made of rubber. 7. An elastic member suitable for keys, the elastic member comprises: an elastic body, the elastic body has a top and contains a cavity therein; and at least one vent hole, the at least one vent hole is arranged on the top, the at least one vent hole A vent hole communicates with the cavity through the top, wherein the air in the cavity escapes to the atmosphere through the at least one vent hole when the elastic member is pressed. 8. The elastic member of claim 7, wherein the elastic member is a dome-shaped member. 9. The elastic member as claimed in claim 7, wherein the vent hole has a first end and a second end, the first end communicates with the atmosphere and the second end communicates with the cavity. 10. The elastic member as claimed in claim 7, wherein the elastic body is made of rubber. 11 . The elastic member according to claim 7 , wherein the elastic body has a switch contact end, and the switch contact end extends downward from the bottom of the top into the cavity.

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