CN202815721U

CN202815721U - Single-wire structured multi-key module

Info

Publication number: CN202815721U
Application number: CN 201220375438
Authority: CN
Inventors: 蔡正义
Original assignee: Portwell Inc
Current assignee: Portwell Inc
Priority date: 2012-07-31
Filing date: 2012-07-31
Publication date: 2013-03-20
Anticipated expiration: 2022-07-31

Abstract

The utility model provides a single-wire structured multi-key module which is particularly applied to operating keys of electronic equipment. The single-wire structured multi-key module comprises a plurality of impedors, a plurality of keys and a data signal conversion module. The impedors are electrically and serially connected. Each key is provided with a live wire end and a ground wire end. The keys are electrically connected in parallel. The keys are disposed at two ends of each impedor, so that voltage change of different keys is formed. The live wire ends are connected electrically. The data signal conversion module is electrically connected to a ground wire end of the key module through a single wire. When any key is pressed, the data signal conversion module reads input voltage change and sends the change to a control module which processes corresponding functions. Therefore, the single-wire structured multi-key module has the advantages of lightweight, thinness, shortness and small size and also has the advantages that staggering wires of overall modules for connection are reduced, manufacture, assembly and flexible application are advantaged, and manufacture economic benefit and product competitiveness of the single-wire structured multi-key module are positively improved.

Description

Many key-press modules of single one-line structure

Technical field

The relevant a kind of operation push-button that is used in electronic equipment of the utility model refers in particular to and can reduce distribution connection staggered between integral module, increases electronic equipment assembling wiring convenience and aesthetic property.

Background technology

Existing many relevant products come out in market in many keystroke interface designs of general electronic equipment, all directly be with a lot of connecting line and button on the guidance panel and be electrically connected, again these actuation of keys are connected to control module to manifest electric function, please refer to shown in Figure 1, these many key-press modules 100 are provided with a plurality of buttons 101, described button is respectively equipped with a live wire end 101a and ground terminal 101b, to be electrical parallel way to be connected between described live wire end 101a, described ground terminal 101b connects respectively an output line 101c, this output line 101c accesses respectively a control module 200, described control module 200 is the data message that each button 101 is pressed is dealt with and to confirm, and carries out corresponding function and start control work and carry out; Only, if button 101 is more, the unlikely external output line 101c of each button because so can waste resource and the time cost when making very much.

Please refer to the practice shown in Figure 2, more common, is the connection that adopts matrix type, and the mode of recycling scanning is lined by line scan, and sees which has button 101 to be depressed, and the recycling program is judged, solves corresponding key value.

Only, electronic devices now is towards compact kenel design, so must overcome the design space deficiency, and staggered in disorder distribution puzzlement, it is to take precautions against exterior static release effects (ESD) directly to enter from many group number keystroke end points that many demands are more arranged, cause described button 101 disablers, even control module 200 input circuits are caused damage, cause the electronic equipment can't normal operation.Therefore, how to improve disappearance problem on the known multioperation button, should be industry and should make great efforts the important directions that solves, overcome.

Edge this, this creator because the distribution of known many key-press modules in the use shortcoming and structural design on do not attain the desirable fact, this case creator namely sets about researching and developing its solution, popular and promote the development of this industry with service society, satisfy the design when many and generation of the present utility model is arranged.

The utility model content

The purpose of this utility model is at many key-press modules that the one-line structure of a kind of list is provided, and its design space that can overcome electronic equipment is not enough, and staggered in disorder distribution puzzlement, actively promotes it and makes economic benefit and product competitiveness.

An again purpose of the present utility model is providing strick precaution exterior static release effects (ESD) directly to enter from many group number keystroke end points, cause described keypress function to lose efficacy, even control module 200 input circuits are caused damage, cause the electronic equipment can't normal operation.

Another purpose of the present utility model is providing a kind of modular design of many buttons, applicable to various X86PC systems and ARM/RISC Embedded Application, such as many application of Embedded panel PC, POS system, HMI interface system (people is because of interface system Human Machine Interface), servo system, factory automation system info class product, and the customer demand of can the arranging in pairs or groups different keystroke demands of being arranged in pairs or groups.

For achieving the above object, technological means of the present utility model includes: a key-press module, it includes: a plurality of impedances, to be electrical series system to connect between described impedance: a plurality of buttons, it is respectively equipped with live wire end and a ground terminal, to be electrical parallel way to connect between described button, and described button is the two ends of being located at respectively described impedance, change with the voltage that forms between different key, this live wire end is to be electrically connected again: a data-signal modular converter, one end is the ground terminal that is electrically connected on this key-press module with single one-line structure incoming line, this data-signal modular converter is the analog input voltage that reads the button end, and being converted to digital data-signal, the other end then connects a control module; Thus, when arbitrary button was pressed, the voltage signal output that this key-press module can be by this button produced different voltage signals when pressing different key, start relevant subsequent treatment to judge, and carry out corresponding function and start control work and carry out.

Its data-signal modular converter further connects a control module, and this control module starts relevant subsequent treatment by reading from different data-signals with judgement, and carries out corresponding function and carry out with startup control work.

This key-press module of the connection of its data-signal modular converter is connected in the ground terminal of this key-press module.

It is that opposing input connecting interface static release voltage enters system and damages.

This data-signal modular converter is an analog-digital converter.

The beneficial effects of the utility model are: its design space that can overcome electronic equipment is not enough, and staggered in disorder distribution puzzlement, actively promotes it and makes economic benefit and product competitiveness.It can provide takes precautions against exterior static release effects (ESD) and directly enters from many group number keystroke end points, causes described keypress function to lose efficacy, even control module 200 input circuits are caused damage, causes the electronic equipment can't normal operation.It is applicable to many application of various system information series products, and the customer demand of can the arranging in pairs or groups different keystroke demands of being arranged in pairs or groups.

Description of drawings

For making the auditor to technical characterictic of the present utility model and the effect reached further understanding and understanding be arranged more, be described in detail as follows below in conjunction with embodiment and accompanying drawing, wherein:

Fig. 1 is the configuration diagram of known many key-press modules.

Fig. 2 is the configuration diagram of another known many key-press modules.

Fig. 3 is the configuration diagram of many key-press modules of the one-line structure of the utility model list.

Fig. 4 is the key groups framework enlarged diagram of many key-press modules of the one-line structure of the utility model list.

Fig. 5 is the data-signal modular converter framework enlarged diagram of many key-press modules of the one-line structure of the utility model list.

Fig. 6 is the configuration diagram of change in voltage and data-signal conversion behind the keystroke driving of many key-press modules of the one-line structure of the utility model list.

Embodiment

The utility model is many key-press modules of the one-line structure of a kind of list, the technological means and the effect thereof that go up preferred embodiment that purpose is lifted according to this and cooperate accompanying drawing to be illustrated.

See also Fig. 3, Fig. 4 and shown in Figure 5, the utility model espespecially is used in the operation push-button of electronic equipment, and this key-press module 10 includes: a plurality of impedances 11, a plurality of button 12 and a data-signal modular converter 20;

Wherein, a plurality of

impedances

11,11 of described impedances are to be electrical series system to connect;

Wherein, a plurality of buttons 12, it is respectively equipped with a live wire end 12a and

ground terminal

12b, 12 of described buttons are to be electrical parallel way to connect, and described button 12 is two ends of being located at respectively described impedance 11, change with the voltage that forms 12 of different keys by the impedance 11 of electric current by the unequal number amount, this live wire end 12a of 12 of described buttons is electrically connected again;

Wherein, this data-signal modular converter 20, it is the ground terminal 12b that is electrically connected on this key-press module 10 with single one-line structure incoming line 21, this data-signal modular converter 20 is the analog input voltages that read button 12 ends, and be converted to digital data-signal, be to be an analog and digital signal converter (ADC/Analog to Digital Converter) in present embodiment;

Further comprise a control module 30 in present embodiment, it is the other end that is electrically connected on this data-signal modular converter 20, it is by reading different data-signals, with the subsequent treatment of judging that startup is relevant, and carries out corresponding function and starts control work and carry out.

More specifically in detail, please consult simultaneously shown in Figure 6, when button 12 (1) is pressed, because its input voltage Vcc changes output voltage V (1) by impedance R (1), this data-signal modular converter 20 should change voltage (1) again and be converted to data-signal DATA (1) behind the change voltage (1) that reads output; For another example, when button 12 (2) is pressed, because its input voltage Vcc changes output voltage V (2) by series impedance (R (1)+R (2)), this data-signal modular converter 20 is behind the change voltage (2) that reads output, should change again voltage (2) and be converted to data-signal DATA (2), and send this control module 30 to the subsequent treatment corresponding function; When being pressed by different button 12 thus, different pieces of information signal DATA can be sent to this control module 30 with the subsequent treatment corresponding function, for instance, when being applied in factory automation system, this control module 30 can be according to the different rotating speeds of different data-signal DATA starter motors.

Wherein, this data-signal modular converter 20 will change the data-signal DATA of voltage transitions, also can represent the corresponding data signal that certain button is pressed, this corresponding data signal is given this control module again, it can be processed and do this respective signal of knowledge, and carry out the be pressed corresponding function of button of representative, and start control work and carry out.

Because many key-press module designs of the single one-line structure of the utility model utilization; can actively reach manufacturing economic benefit and the product competitiveness of manufacturing, assembling and flexible application; and can improve in the past used connecting interface needs to add one by one all input protection assemblies in each keystroke end points; discharging (ESD) voltage with opposing input connecting interface static enters system and damages; hardware front-end protection spare part and assembly usage quantity can be reduced, the Element Design cost can be reduced.

In sum, the utility model has really met the condition of new patent, so propose patented claim in accordance with the law.Only above-described, it only is the utility model preferred embodiment, be not to limit the scope that the utility model is implemented, so every equalization of doing according to the described shape of the utility model claim, structure, feature and spirit changes and modifies, and all should be included in the claim scope of the present utility model.

Claims

1. many key-press modules of the one-line structure of list is characterized in that it includes:

A plurality of impedances are electrical series system and connect between described impedance;

A plurality of buttons are electrical parallel way between described button and connect, and this button philosophy are provided with live wire end and a ground terminal, simultaneously, described button is located at respectively the two ends of described impedance, changes with the voltage that forms between different key, and this live wire end of described button is electrically connected again;

One data-signal modular converter, it is to be electrically connected on this key-press module with single one-line structure incoming line, this data-signal modular converter reads the input voltage of button end, and is converted to data-signal.

2. many key-press modules of the one-line structure of list as claimed in claim 1, it is characterized in that, its data-signal modular converter further connects a control module, this control module is by reading from different data-signals, start relevant subsequent treatment to judge, and carry out corresponding function and start control work and carry out.

3. many key-press modules of the one-line structure of list as claimed in claim 1 is characterized in that, this key-press module of the connection of its data-signal modular converter is connected in the ground terminal of this key-press module.

4. many key-press modules of the one-line structure of list as claimed in claim 1 is characterized in that, it is that opposing input connecting interface static release voltage enters system and damages.

5. many key-press modules of the one-line structure of list as claimed in claim 1 is characterized in that, this data-signal modular converter is an analog-digital converter.