CN201004394Y - key structure - Google Patents

Abstract

A key structure comprises a thin film circuit board, a substrate, a press-contact component, a key cover and a connecting rod. The thin film circuit board includes a signal generating point. The substrate includes a pivot portion and a first limiting component. The press-contact component is arranged on the signal generating point. The key cover comprises a connecting part and a second limiting component. The connecting rod is pivoted with the pivoting part and connected with the connecting part, wherein when the key cover is positioned at a first position, the first limiting component is abutted against the second limiting component, and when the key cover is pressed by an external force and positioned at a second position, the pressing and contacting component presses and contacts the signal generating point to generate an electric signal.

Description

key structure

technical field

The utility model relates to a key structure, in particular to a key structure of a thin keyboard.

Background technique

In the traditional technology, a scissor-shaped structure is provided under the key cover of the key structure of the keyboard, and the scissor-shaped structure can provide a restoring force to the key cover. When removed, the button cover will be pushed up to an initial position by the restoring force. At the same time, the scissors-like structure enables the key cover to maintain good stability during the process of moving up and down.

However, for different shapes of key covers, the design of the scissor-shaped structure also needs to be changed accordingly (a keyboard usually requires more than three scissor-shaped structure designs), and for different scissor-shaped structures, different molds are required To be manufactured. Therefore, using the scissor-like structure will increase the manufacturing cost of the keyboard.

Utility model content

The purpose of the utility model is to provide a button structure for solving the problems of the traditional technology, including a thin film circuit board, a substrate, a pressing component, a button cover and a connecting rod. The thin film circuit board includes a signal generating point. The base plate includes a pivot portion and a first limiting component. The pressing component is arranged on the signal generating point. The key cover includes a connecting portion and a second limiting component. The connecting rod pivotally connects the pivoting part and connects the connecting part, wherein, when the key cover is at a first position, the first limiting component abuts against the second limiting component, and when the key cover is pressed by an external force When located at a second position, the pressing component presses the signal generating point to generate an electric signal.

The advantage of the device of the utility model is that, by applying the button structure of the utility model, the connecting rod can replace the traditional scissors-like structure, so that the button cover can move up and down in a balanced and stable manner. At the same time, the restoring force of the key structure is provided by the pressing component. The utility model is especially suitable for the key structure design of the thin keyboard. Since the stroke of the key structure of the thin keyboard is relatively short, sufficient restoring force can be provided only through the pressing component, and the key cover can be provided through the connecting rod of the utility model at the same time. Stability of movement.

Description of drawings

Fig. 1a shows the button structure of the first embodiment of the present invention, wherein the button cover is located at a first position;

Fig. 1b shows the button structure of the first embodiment of the present invention, wherein the button cover is located at a second position;

Figure 2a shows the shape of the connecting rod;

Fig. 2b is a perspective view showing the button structure of the present utility model;

Fig. 3 shows the button structure of the second embodiment of the present invention;

Fig. 4a shows the button structure of the third embodiment of the present invention, wherein the button cover is located at the first position;

Fig. 4b shows the button structure of the third embodiment of the present invention, wherein the button cover is at the second position.

Explanation of main component symbols

100, 100’, 100”～button structure

110～thin film circuit board

111～Signal generation point

120～substrate

121～pivot joint

122～the first limiting component

130, 130'～press contact component

140～key cover

141～connection part

142～Second limiting component

150, 150'～connecting rod

151～gap

152～first section

153～Second section

Detailed ways

Referring to FIG. 1 a , it shows a button structure 100 according to the first embodiment of the present invention, including a thin film circuit board 110 , a substrate 120 , a pressing component 130 , a button cover 140 and a connecting rod 150 . The thin film circuit board 110 includes a signal generating point 111 . The base plate 120 includes a pivot portion 121 and a first limiting component 122 . The pressure contact component 130 is disposed on the signal generating point 111 . The key cover 140 includes a connecting portion 141 and a second limiting component 142 . The connecting rod 150 is pivotally connected to the pivoting portion 121 and connected to the connecting portion 141 .

When the key cover 140 is at a first position P1 , the first limiting component 122 abuts against the second limiting component 142 , thereby limiting the movement of the key cover 140 and preventing the key cover 140 from shifting or turning over. Referring to FIG. 1b, when the key cover 140 is pressed by an external force F to move to a second position P2, the key cover 140 pushes the pressing component 130 to press the signal generating point 111 to generate an electrical signal.

When the key cover 140 moves from the first position P1 to the second position P2, the connecting rod 150 pivots from a first orientation (the orientation shown in FIG. 1 a ) to a second orientation (the orientation shown in FIG. 1 b ). position).

Both the first limiting component 122 and the second limiting component 142 are cantilever beams. The first limiting component 122 passes through the substrate 120 . When the key cover 140 is at the first position P1, the first limiting component 122 abuts against the substrate 120 and the second limiting component 142 . When the key cover 140 is located at the second position P2, the first restricting component 122 falls to release the abutting state with the substrate 120 .

Referring to FIG. 2 a , the connecting rod 150 is rectangular and includes a notch 151 formed on one side of the rectangle. The connecting rod 150 is made of metal. Referring to FIG. 2 b , it is a perspective view of the button structure 100 of the present invention, which shows the connection between the connecting rod 150 and the pivoting portion 121 and the connecting portion 141 . In an embodiment of the present invention, the connecting rod 150 can be connected to the connecting portion 141 in a pivotal manner or in a fixed manner.

The pressing component 130 is a dome-shaped component (Dome), and its material may be rubber. The pressing component 130 provides an elastic force to the key cover 140 so that the key cover 140 automatically returns from the second position P2 to the first position P1.

Referring to FIG. 3 , it shows a button structure 100 ′ of the second embodiment of the present invention, and its characteristic is that the connecting rod 150 ′ includes a first segment 152 and a second segment 153 , and the first segment 152 The second section 153 is connected, and there is an included angle between the first section 152 and the second section 153 . The connecting rod of the present invention can also be bent into other shapes.

Referring to Fig. 4a, it shows the third embodiment of the present utility model, wherein, the key cover 140 also includes a protruding part 143, and the press-contact component 130' is a metal dome-shaped component (Dome), the The protrusion 143 corresponds to the pressing component 130'. Referring to FIG. 4b, when the key cover 140 is pressed from the first position P1 to the second position P2, the protrusion 143 pushes the pressing component 130' to press the signal generating point 111 to generate an electrical signal. .

By applying the button structure of the utility model, the connecting rod can replace the traditional scissors-like structure, so that the button cover can move up and down in a balanced and stable manner. At the same time, the restoring force of the key structure is provided by the pressing component. The utility model is especially suitable for the key structure design of the thin keyboard. Since the stroke of the key structure of the thin keyboard is relatively short, sufficient restoring force can be provided only through the pressing component, and the key cover can be provided through the connecting rod of the utility model at the same time. Stability of movement.

The utility model replaces the traditional scissors-like structure with a metal connecting rod. Since the connecting rod has a simple structure and low cost, the manufacturing cost of the button structure can be greatly saved. Moreover, since the metal connecting rod is easy to bend and deform, it can be conveniently applied to various button structure designs.

Although the utility model has been disclosed above with specific preferred embodiments, it is not intended to limit the utility model, and any person in the industry can still make some changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the present utility model should be defined by the claims.

Claims (13)

1. a press-key structure is characterized in that, comprising:

One film circuit board comprises that a signal produces point;

One substrate comprises an articulated section and one first limiter assembly;

One pressure is touched assembly, is arranged on this signal and produces on the point;

One button lid comprises a junction and one second limiter assembly; And

One connecting rod, articulate this articulated section, and connect this connecting portion, wherein, when this button lid is positioned at a primary importance, this this second limiter assembly of first limiter assembly butt, when this button lid is subjected to a pressed by external force and when being positioned at a second place, this pressure is touched assembly and is pressed and touch this signal and produce point and produce a signal of telecommunication.

2. press-key structure according to claim 1 is characterized in that, this connecting rod comprises one first section portion and one second section portion, and this first section portion connects this second section portion, and has an angle between this first section portion and this second section portion.

3. press-key structure according to claim 1 is characterized in that, this connecting portion is to connect this connecting rod in the mode that articulates.

4. press-key structure according to claim 1 is characterized in that, this pressure is touched assembly and comprised rubber.

5. press-key structure according to claim 1 is characterized in that, this pressure is touched assembly and comprised metal.

6. press-key structure according to claim 1 is characterized in that, it is a cheese assembly that this pressure is touched assembly.

7. press-key structure according to claim 1 is characterized in that, this pressure is touched assembly and provided an elastic force to this button lid so that this button lid automatically from this second site reversion to this primary importance.

8. press-key structure according to claim 1 is characterized in that, this first limiter assembly is a cantilever beam.

9. press-key structure according to claim 1 is characterized in that, this second limiter assembly is a cantilever beam.

10. press-key structure according to claim 1 is characterized in that, this button lid also comprises a protuberance, and corresponding this pressure of contact is touched assembly.

11. press-key structure according to claim 1 is characterized in that, this connecting rod comprises metal.

12. press-key structure according to claim 11 is characterized in that, this connecting rod is rectangular, and comprises a breach, is formed at one side of this rectangle.

13. press-key structure according to claim 1 is characterized in that, when this button lid was positioned at a primary importance, this connecting rod was in a first orientation, and when this button lid was positioned at a second place, this connecting rod was in a second orientation.

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