CN204203907U - The noiseless wireless mouse of a kind of self-powered - Google Patents

Abstract

A self-powered silent wireless mouse, including an upper shell, a bottom shell, a left button, a right button and a scroll wheel, the backs of the left button and the right button are covered with piezoelectric generating devices respectively, the piezoelectric generating device and electric energy conversion and storage circuits connection, the electric energy conversion and storage circuit is fixed on the bottom shell, the electric energy conversion and storage circuit stores the electric energy generated by the piezoelectric generator and supplies power to the mouse; the piezoelectric generator is a piezoelectric sheet. The utility model has the advantages that: the mechanical deformation energy generated when the mouse button is pressed is converted into electric energy through the piezoelectric material, and the mouse is powered, thereby realizing the self-power supply of the mouse and avoiding the problem of battery replacement; by detecting the deformation of the piezoelectric material The generated voltage judges the status of the button, avoiding the shrapnel switch of the traditional mouse, so that the mouse has the characteristics of silence; the generation of electric energy and the detection of the button status are realized on the same piece of piezoelectric material, and the structure is simple.

Description

A self-powered silent wireless mouse

technical field

The utility model relates to a silent wireless mouse. the

Background technique

At present, most of the silent wireless mice on the market adopt two power supply modes of charging type and battery type. The rechargeable mouse cannot be used in the rechargeable mode, which will affect the operation. The battery type needs to continuously purchase dry batteries, which greatly increases the cost of use for consumers, and at the same time, also causes pollution to the environment by waste batteries. the

Contents of the invention

In order to overcome the above-mentioned shortcomings of the existing silent wireless mouse, the utility model provides a silent wireless mouse capable of self-power supply. the

A self-powered silent wireless mouse, including an upper shell, a bottom shell, a left button, a right button and a scroll wheel, is characterized in that: the backs of the left button and the right button are covered with piezoelectric generating devices respectively, and the piezoelectric generating device and electric energy The conversion and storage circuit is connected, the electric energy conversion and storage circuit is fixed on the bottom shell, the electric energy conversion and storage circuit stores the electric energy generated by the piezoelectric generating device and supplies power to the mouse; the piezoelectric generating device is a piezoelectric sheet. the

Further, the mouse has a button detection circuit, the button detection circuit is fixed on the bottom shell, and the electric energy conversion and storage circuit supplies power for the button detection circuit; the piezoelectric sheet is composed of an intermediate piezoelectric ceramic layer, an upper metal layer, and a lower metal layer, and the upper metal layer It is a whole piece of electrode, the upper metal layer is bonded and fixed to the mouse button; the lower metal layer is composed of a large electrode that converts the mechanical deformation of the left button or right button into electrical energy and a small electrode that detects the condition of the mouse button. There is an insulating gap between them, the large electrode is much larger than the small electrode, and the large electrode is connected with the electric energy conversion and storage circuit. The so-called detection of the button state of the mouse refers to detecting whether the user presses the left button or the right button, and whether the button is clicked or double-clicked. the

Further, the small electrode is rectangular, the small electrode is located at a corner of the large electrode, and the small electrode and the large electrode form a complete rectangle. the

Further, the piezoelectric sheet is one or more layers. the

The method for generating electric energy in the utility model is as follows: when the left button or the right button of the mouse is pressed, the piezoelectric material pasted on the back of the mouse will be bent and deformed, and due to the positive piezoelectric effect, positive and negative charges will be generated on the opposite surfaces of the piezoelectric sheet , the charge is exported through the electrodes on the opposite surface, and the electric energy is stored through the electric energy conversion and storage circuit to provide power for the mouse. the

The method for detecting the mouse button of the utility model is as follows: when the left button or the right button of the mouse is pressed, the piezoelectric material pasted on the back of the pressed button is bent and deformed together, and due to the positive piezoelectric effect, the opposite surface of the piezoelectric material Positive and negative charges are generated on the surface, and the voltage on the surface can be monitored by the circuit to determine the button status of the mouse. the

The utility model has the advantages of:

1. Through the piezoelectric material, the mechanical deformation energy generated when the mouse is pressed is converted into electrical energy to supply power to the mouse, realizing the self-power supply of the mouse and avoiding the problem of battery replacement.

2. By detecting the voltage generated by the piezoelectric material when it is deformed, it can judge the button status, avoiding the shrapnel switch of the traditional mouse, so that the mouse has the characteristics of silence. the

3. The generation of electric energy and the detection of the button are realized on the same piece of piezoelectric material, and the structure is simple. the

Description of drawings

Fig. 1 is a structural schematic diagram of the self-powered silent wireless mouse of the present invention. the

Figure 2a is a schematic diagram of a piezoelectric sheet. the

Fig. 2b is a schematic diagram of the upper metal layer covering the piezoelectric ceramic layer. the

Fig. 2c is a schematic diagram of the lower metal layer covering the piezoelectric ceramic layer. the

Figure 3a is a schematic diagram of a small electrode generating a pulse when a button is clicked. the

Fig. 3b is a schematic diagram of two pulses generated by the small electrode when the button is double-clicked. the

Detailed ways

Referring to FIG. 1 , a self-powered silent wireless mouse includes an upper casing 1 , a bottom casing 2 , a mouse button 3 , a piezoelectric generator 4 , an electric energy conversion and storage circuit 5 , a key detection circuit 6 and other components 7 of the mouse. The upper case 1 is connected with the bottom case 2 , and the mouse button 3 is connected with the upper case 1 . The piezoelectric generating device 4 is attached to the mouse button 3 back side. The piezoelectric generating device 4 is at least one layer of piezoelectric sheet made of piezoelectric ceramic PZT with a thickness of about 0.1 mm, and the mouse button 3 is made of plastic with a thickness of about 0.5 mm. the

Referring to FIG. 2 a , the piezoelectric sheet 4 is composed of an intermediate piezoelectric ceramic layer 41 , an upper metal layer 42 , and a lower metal layer 43 . Referring to FIG. 2 b , the upper metal layer 42 is a whole electrode, and the upper metal layer 42 is glued and fixed to the mouse buttons. Referring to Fig. 2c, the lower metal layer 43 is divided into two parts, wherein the larger one is a large electrode 431, which is used to convert the mechanical deformation energy of the mouse button into electric energy, and is connected with the electric energy conversion and storage circuit 5. The working power supply of the mouse; the electrode with a smaller area is the small electrode 432, and the small electrode 432 is used to detect the button state of the mouse. The small electrode 432 has a rectangular shape, the small electrode 432 is located at a corner of the large electrode, and the small electrode 432 and the large electrode 431 form a complete rectangle. As long as the area of the large electrode 431 is enough to sense the deformation of the key and generate electric energy, the shapes of the large electrode 431 and the small electrode 432 are not limited to the example of this embodiment. the

Referring to FIG. 3 , when the mouse button 3 is pressed, the piezoelectric sheet 4 bends along with the button, and the button bounces depending on the elastic recovery force of the button itself. When the mouse is clicked or double-clicked, the electrode 42 and the electrode 432 receive one voltage pulse respectively, as shown in FIG. 3 a ; and two voltage pulses, as shown in FIG. 3 b . The button monitoring circuit 6 monitors the voltage between the electrode 42 and the electrode 432 in real time to determine the button status of the mouse. A similar voltage pulse is also generated between the electrode 42 and the electrode 431, but with more electric energy, which is stored by the electric energy conversion and storage circuit 5 to provide power for the mouse. the

The silent wireless mouse of the utility model converts the mechanical deformation energy generated when the mouse is pressed through the piezoelectric material into electric energy, supplies power for the mouse, realizes the self-power supply of the mouse, and avoids the problem of battery replacement. At the same time, by detecting the voltage generated by the piezoelectric material when it is deformed, it can judge the button status, avoiding the use of the shrapnel switch of the traditional mouse, so that the mouse has the feature of being silent. the

The content described in the embodiments of this specification is only an enumeration of the realization forms of the utility model concept, and the protection scope of the utility model should not be regarded as being limited to the specific forms stated in the embodiments, and the protection scope of the utility model also extends to Equivalent technical means that those skilled in the art can think of according to the concept of the utility model. the

Claims (4)

1. the noiseless wireless mouse of self-powered, comprise upper shell, drain pan, left button, right button and roller, is characterized in that: the back side of left button and right button is covered with piezoelectric generating device respectively, and piezoelectric generating device is connected with memory circuit with electric energy conversion, electric energy conversion is fixed on drain pan with memory circuit, and electric energy change and stored with memory circuit the electric energy that piezoelectric generating device produces and also power into mouse; Piezoelectric generating device is piezoelectric patches.

2. the noiseless wireless mouse of self-powered as claimed in claim 1, is characterized in that: this mouse has key press detecting circuit, and key press detecting circuit is fixed on drain pan, and electric energy is changed and powered into key press detecting circuit with memory circuit; Piezoelectric patches is by middle piezoceramics layer and upper metal level, and lower metal layer forms, and upper metal level is full wafer electrode, and upper metal level and mouse button are adhesively fixed; Lower metal layer is made up of the small electrode of the large electrode and detection mousebutton situation that the mechanically deform of left button or right button are converted to electric energy, clearance for insulation is had between large electrode and small electrode, large electrode is much larger than small electrode, and large electrode changes with electric energy and memory circuit is connected.

3. the noiseless wireless mouse of self-powered as claimed in claim 2, it is characterized in that: small electrode is rectangle, small electrode is positioned at one jiao of large electrode, and small electrode and large electrode are combined into complete rectangle.

4. the noiseless wireless mouse of self-powered as claimed in claim 3, is characterized in that: piezoelectric patches is one or more layers.