CN201413498Y

CN201413498Y - Input module with piezoelectric element and portable electronic device

Info

Publication number: CN201413498Y
Application number: CN2009201478072U
Authority: CN
Inventors: 陈冠宇; 李梦周
Original assignee: Wistron Corp
Current assignee: Wistron Corp
Priority date: 2009-04-14
Filing date: 2009-04-14
Publication date: 2010-02-24
Anticipated expiration: 2019-04-14

Abstract

The utility model relates to an input module with a piezoelectric element and a protable electronic device. Particularly, the input module with the piezoelectric element comprises a keypad, an input circuit board, the piezoelectric element and an electric energy storage device, wherein the piezoelectric element is installed between the keypad and the input circuit board, when the keypad moves towards the input circuit board, the piezoelectric element generates deformation so as to generate electric energy; and the electric energy storage device is electrically connected with the piezoelectic element and used for storing the electric energy generated by the piezoelectric element. In the utility model, the electric energy generated when the piezoelectric element deforms is utilized to chargea battery, and when the electronic device or the portable device is used, the mechanical energy generated for pressing the keypad is converted into electric energy, thus solving the problem of low electric power when the electronic device or the portable device is used.

Description

Load module and portable electron device with piezoelectric element

Technical field

The utility model relates to a kind of load module and portable electron device, relates in particular to a kind of piezoelectric that utilizes the input distortion to produce electric current that is provided with in load module, mechanical energy is converted to the Keysheet module and the portable electron device of electric energy.

Background technology

Along with various portable electronic installations are more and more paid attention to compact, ease of use and functional trend, also more and more come into one's own in the problem of power supply supply side as electronic installations such as notebook computer, personal digital assistant, mobile communications devices.Though but the lithium polymer battery of high power capacity recharge, memory-less effect is the main flow of originating as power supply to electronic device now at present; under the behaviour in service of no external power source supply, still regular meeting battery electric quantity to occur not enough and must obtain external power source at once or be forced to stop using the problem of electronic installation.On the other hand, present majority is had the electronic installation of input media such as keyboard, the user highly uses in the process of each button on (knock or press) keyboard, and many of the mechanical energy that button is knocked or presses are used for producing input signal.Therefore if this mechanical energy can be converted to the electric energy of this electronic installation of supply, gesture can solve the problem of aforementioned battery electric quantity deficiency immediately, also can knock or press the more efficient utilization of mechanical energy do of each button to the user.

The utility model content

The utility model provides a kind of load module with piezoelectric element, and it includes a button, an input circuit plate, a piezoelectric element and an apparatus for storing electrical energy.This piezoelectric element is installed between this button and this input circuit plate, when this button when this input circuit plate moves, the generation electric energy is used in this piezoelectric element generation deformation.This apparatus for storing electrical energy is electrically connected on this piezoelectric element, and this apparatus for storing electrical energy is used for storing the electric energy that this piezoelectric element produces.

The utility model also provides a kind of portable electron device, comprises an apparatus for storing electrical energy and a load module.This apparatus for storing electrical energy stores and the supply electric energy.This load module and this apparatus for storing electrical energy electrically connect, and this load module comprises a button, an input circuit plate and a piezoelectric element (piezoelectric pad).This piezoelectric element is installed between this button and this input circuit plate, when this button when this input circuit plate moves, the generation electric energy is used in this piezoelectric element generation deformation.Wherein this apparatus for storing electrical energy and this piezoelectric element electrically connect, and this apparatus for storing electrical energy is used for storing the electric energy that this piezoelectric element produces.

The electric energy that utilization of the present invention produces when piezoelectric element is out of shape makes electronic installation or mancarried device in use to battery charge, and the mechanical energy of pressing keys is converted to electric energy, to solve the problem of power shortage in electronic installation or the mancarried device use.

Description of drawings

Fig. 1 is the synoptic diagram of one first embodiment that the utlity model has the load module of piezoelectric element.

Fig. 2 is the enlarged diagram of the utility model load module.

Fig. 3 connects the block diagram of a mancarried device for load module.

Fig. 4 is the synoptic diagram of one second embodiment of load module.

Fig. 5 is the synoptic diagram of input media in the load module.

Fig. 6 is the synoptic diagram of a notebook computer.

The primary clustering symbol description:

1 load module, 40 apparatus for storing electrical energy

10 input medias, 50 mancarried devices

11,110 input modules, 111 actuation ends

13 input circuit plates, 100 notebook computers

120 keyboards are organized in 15 inputs

20 piezoelectric elements, 121 buttons

30 braking plates, 140 charged lithium cells

Embodiment

Please refer to Fig. 1 and Fig. 2, Fig. 1 is the synoptic diagram of first embodiment that the utlity model has the load module 1 of piezoelectric element, and Fig. 2 is the partial enlarged drawing of load module 1.Load module 1 of the present utility model comprises an input media 10, a piezoelectric element 20 and an apparatus for storing electrical energy 40.In the application of reality, load module 1 can be as notebook computer (notebook), mini notebook computer (netbook), mobile phone (mobile phone), Keysheet module in the intelligent mobile phone mancarried devices such as (smartphone), as shown in Figure 6, be the synoptic diagram of a notebook computer 100, wherein the keyboard 120 of notebook computer 100 is the input media 10 of load module 1, promptly as the apparatus for storing electrical energy 40 of load module 1, piezoelectric element 20 then is arranged at the below of keyboard 120 each button 121 and is not shown on the figure its charged lithium cells 140.Apparatus for storing electrical energy 40 also can use a second source module except utilizing the intrinsic rechargeable battery of mancarried device, and when the battery electric power of mancarried device exhausted, continuing offered the required electric power of this mancarried device work.In addition, load module 1 also can be used in the electronic installation beyond the mancarried device, utilizes technical characterictic of the present utility model, and mechanical energy is converted to electric energy to offer an extra apparatus for storing electrical energy.

Input media 10 is the keyboard body, it has a plurality of buttons as input module 11, as Fig. 1 and shown in Figure 2, it below a plurality of input modules 11 an input circuit plate 13, can be a circuit board, have the film of control circuit etc., when input module 11 pushed by the user and along a direction N when input circuit plate 13 moves, input module 11 touches the switch of opposite position on the input circuit plate 13 to produce corresponding electronic signal, its detailed principle of work field those of ordinary skill for this reason can be learnt easily, repeats no more herein.Between input module 11 and input circuit plate 13, then be provided with a piezoelectric element 20 and a braking plate 30, and piezoelectric element 20 be positioned at input module 11 along direction N on the path that input circuit plate 13 moves, 30 of braking plates are arranged between input module 11 and the piezoelectric element 20.The utility model promptly utilizes the distortion of piezoelectric element 20 to produce electric energy to charge.When the user pushes input module 11, input module 11 moves to input circuit plate 13 along direction N, promotes braking plate 30 simultaneously, and in embodiment of the present utility model, braking plate 30 can be the shell fragment of a flexible materials, makes input module 11 can keep suitable feel simultaneously.Therefore input module 11 promotes braking plate 30, and braking plate 30 is then oppressed piezoelectric element 20 generation deformation.

Please refer to Fig. 3, it is the synoptic diagram that load module 1 connects a mancarried device 50.Apparatus for storing electrical energy 40 is electrically connected at mancarried device 50 to provide electric energy to mancarried device 50, and the piezoelectric element 20 in the load module 1 also is electrically connected on apparatus for storing electrical energy 40, when pushing input module 11 as described above and make piezoelectric element 20 produce deformation, piezoelectric element 20 can produce electric energy, and exports apparatus for storing electrical energy 40 to so that apparatus for storing electrical energy 40 is charged.Therefore use in the electric energy process of apparatus for storing electrical energy 40 at mancarried device 50, when the situation of power shortage takes place, knock the action (producing mechanical energy) of button on the keyboard by the user, can continue the piezoelectric element in the load module 1 20 is caused deformation and mechanical energy is converted to electric energy with to apparatus for storing electrical energy 40 charging, or directly electric energy be offered mancarried device 50.

Please refer to Fig. 4, except previous embodiment, in second embodiment of the present utility model, also can directly come piezoelectric element 20 is caused distortion by input module.As shown in Figure 4, input module 110 has an actuation ends 111, and in a second embodiment, 13 of the input circuit plates of input media are arranged between input module 110 and the piezoelectric element 20, in other words, the actuation ends 111 of input module 110 is passed the holes of input circuit plate 13 and is contacted piezoelectric element 20.When input module 110 is pressed and during displacement, actuation ends 111 can cause deformation to piezoelectric element 20, make piezoelectric element 20 produce electric energy.

In addition, can find out by Fig. 2 and Fig. 4, be arranged at the intrinsic piezoelectric element 20 of the keyboard input module 11 (or 110) of correspondence two (or more than two) simultaneously, therefore when one of them is pressed when the input module 11 that corresponds to same piezoelectric element 20, all can cause distortion and generation electric energy to piezoelectric element 20.And in Fig. 5, can further show, load module of the present utility model is divided into several input groups 15 with a plurality of input modules 11 on the input media 10, and load module also comprises a plurality of piezoelectric elements 20 (then being hidden under the input module 11) in Fig. 5, corresponding one to one respectively these input groups 15.And these a plurality of piezoelectric elements 20 are with serial or parallel connection or string and mixed mode and apparatus for storing electrical energy 40 electric connections, to constitute a charge circuit.When the user knocking repeatedly or push input device 10 on during each different input module 11, each input module 11 can be oppressed its down pairing piezoelectric element 20 at the same time or separately and be produced distortion, to continue to produce electric energy with to apparatus for storing electrical energy 40 chargings.Thus, in electronic installation uses, can when the battery electric power deficiency of electronic installation, provide a solution.

Utilization adds one or more piezoelectric element in keyboard, and is electrically connected with the battery of an electronic installation or mancarried device.When the user when using keyboard to push each button, the actuation ends compressing piezoelectric element that the downward displacement of button drives a shell fragment or button itself produces and is out of shape.The electric energy that produces when piezoelectric element is out of shape makes electronic installation or mancarried device in use to battery charge, the mechanical energy of pressing keys is converted to electric energy, to solve the problem of power shortage in electronic installation or the mancarried device use.

The above only is preferred embodiment of the present utility model, and every equivalent variations and modification of being done according to the utility model claims scope all should belong to covering scope of the present utility model.

Claims

1. the load module with piezoelectric element is characterized in that, described load module comprises:

One button;

One input circuit plate;

One piezoelectric element is installed between described button and the described input circuit plate, when described button when described input circuit plate moves, the generation electric energy is used in described piezoelectric element generation deformation; And

One apparatus for storing electrical energy, it is electrically connected on described piezoelectric element, and described apparatus for storing electrical energy is used for storing the electric energy that described piezoelectric element produces.

2. load module as claimed in claim 1, it is characterized in that, described load module also comprises a braking plate, be arranged between described button and the described piezoelectric element, when described button when described input circuit plate moves, described button drives described braking plate to oppress described piezoelectric element generation deformation.

3. load module as claimed in claim 2 is characterized in that, described braking plate is the flexible materials braking plate.

4. load module as claimed in claim 1 is characterized in that described button has an actuation ends, when described button when described input circuit plate moves, described actuation ends is oppressed described piezoelectric element generation deformation.

5. load module as claimed in claim 1 is characterized in that, described input circuit plate is used for producing electronic signal according to the displacement of described button.

6. load module as claimed in claim 1 is characterized in that, described load module is a Keysheet module.

7. load module as claimed in claim 1 is characterized in that, described apparatus for storing electrical energy is a rechargeable battery.

8. load module as claimed in claim 1 is characterized in that described apparatus for storing electrical energy is electrically connected on a mancarried device, and the electric energy that is used for that described piezoelectric element is transmitted is supplied to described mancarried device.

9. load module as claimed in claim 8 is characterized in that, described mancarried device is notebook computer, mini notebook computer, mobile phone or intelligent mobile phone.

10. portable electron device comprises:

One apparatus for storing electrical energy stores and the supply electric energy; And

One load module electrically connects with described apparatus for storing electrical energy, it is characterized in that described load module comprises:

One button;

One input circuit plate; And

One piezoelectric element is installed between described button and the described input circuit plate, when described button when described input circuit plate moves, the generation electric energy is used in described piezoelectric element generation deformation;

Wherein, described apparatus for storing electrical energy and described piezoelectric element electrically connect, and described apparatus for storing electrical energy is used for storing the electric energy that described piezoelectric element produces.

11. portable electron device as claimed in claim 10, it is characterized in that, described load module also comprises a braking plate, be arranged between described button and the described piezoelectric element, when described button when described input circuit plate moves, described button drives described braking plate to oppress described piezoelectric element generation deformation.

12. portable electron device as claimed in claim 11 is characterized in that, described braking plate is the flexible materials braking plate.

13. portable electron device as claimed in claim 10 is characterized in that, described button has an actuation ends, when described button when described input circuit plate moves, described actuation ends is oppressed described piezoelectric element generation deformation.

14. portable electron device as claimed in claim 10 is characterized in that, described input circuit plate is used for producing electronic signal according to the displacement of described button.

15. portable electron device as claimed in claim 10 is characterized in that, described load module is a Keysheet module.

16. portable electron device as claimed in claim 10 is characterized in that, described apparatus for storing electrical energy is a rechargeable battery.

17. portable electron device as claimed in claim 10 is characterized in that, described portable electron device is notebook computer, mini notebook computer, mobile phone or intelligent mobile phone.