Key-press and keyboard using the same

Abstract

The invention provides a key, comprising a key cap, a bottom board, a floating fixed structure, a group of contact bars and a spring body; the bottom board is internally provided with a bottom board circuit; the floating fixed structure is used for imposing action force to the key cap to fix the key cap in a floating way along the vertical direction; the group of contact bars are arranged in the bottom board and positioned below the key cap; the spring body is positioned just below the key cap, and the height of the spring body in the natural state is higher than the contact bars; wherein, when the key cap is vertically or obliquely pressed down, the key cap pushes the different contact bars in the group of the contact bars, thereby triggering the bottom board circuit to generate the different signals. A keyboard with the key can reduce the number of the keys, thereby reducing the total area of the keyboard and reducing the thickness.

Description

Technical field: [0001] The invention relates to a keyboard input device of a computer system, in particular to a keyboard key that can be used for both a notebook and a desktop computer, and a signal identification method in the working process of the key. Background technique [0002] The keyboard has always been an important input device for computer systems. The number and layout of the keyboard keys have also experienced from the early 83-key keyboard to the later 101-keyboard, 104-keyboard, and 104-keyboard. On the basis, three power control keys are added: "power", "sleep" and "wake-up" keys to become a 107 keyboard. With the development of software applications, the keyboard keys still have a tendency to increase, especially the development of multimedia applications. Various manufacturers have released keyboards with buttons for multimedia control, such as volume control and video control, but there is no uniform standard, which not only brings inconvenience to user...

AI Technical Summary

Problems solved by technology

[0013] In order to solve the contradiction between the number of keys and the overall area of ​​the keyboard, the patent No. 95107224.2 proposes a key that can be pressed directly downward and has switches on the front, rear, left, and right sides. That is to say, one key can generate multiple signals. If this kind of button is adopted, the keyboard that produces the same number of signals can be greatly reduced, but this kind of design cannot be used for notebook computers, because this kind of design needs to increase a new circuit board ( Figure 8 004), but also increase the corresponding rubber stoppers, so that the height of the keys is too high to be applied to notebook computers. In addition, if this type of keyboard is used for desktop computers, it also has the disadvantages of complex structure and high cost, because the newly added The circuit board cannot be combined with the original circuit board, which is not convenient for production, and the button needs to be moved back and forth, so the "crater" structure must be removed. If the button is in the middle, it will produce the result of "pull" operation, causing misoperation

[0014] In miniaturized devices such as mobile phones, there is also a contradiction between the number of buttons and the available area. At present, the usual solution is to use multi-directional buttons or multi-purpose buttons, so that one button can generate multiple signals. Figure 9 An embodiment is shown, but this type of key only makes different parts of the key correspond to different backplane signal switches. When using it, the user needs to see the key clearly with his eyes, and then press different parts of the key to generate different signals. Therefore, this type of key Buttons are not suitable for occasions that require fast input of information, only suitable for handheld devices such as mobile phones

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