CN203326651U - Solar charger for mobile phones - Google Patents

Abstract

The utility model discloses a solar charger for a mobile phone, which comprises a housing, a rechargeable battery, an output interface connected with the rechargeable battery, a solar battery panel, a sampling circuit, a power conversion circuit, an A/D conversion circuit, and a single-chip microcomputer. . PWM control circuit, wherein the solar cell panel is located on the surface of the housing; the solar cell panel and the rechargeable battery are respectively connected to the A/D conversion circuit through a sampling circuit; one end of the power conversion circuit is connected to the solar cell panel; The A/D conversion circuit is connected to the single-chip microcomputer; the other end of the single-chip microcomputer and the power conversion circuit are respectively connected to the PWM control circuit; the PWM control circuit is connected to the rechargeable battery. The charger enables people to reasonably utilize the surrounding environment when going out, converts solar energy into electric energy and stores it in the rechargeable battery, fully realizes energy-saving recycling, improves use efficiency, and can be provided to people more conveniently.

Description

A kind of solar charger for mobile phone

technical field

The utility model relates to a charger, in particular to a solar charger for mobile phones, which belongs to the technical field of solar energy applications.

Background technique

With the continuous development of communication technology, mobile phones have become an indispensable tool for people to communicate. Due to the portability and convenience of the mobile phone, it has been favored by people, and people have become accustomed to using mobile phones to communicate. Due to the small body of the mobile phone, the electric energy stored in the battery is limited, so the mobile phone needs to be used in conjunction with a charger. The traditional mobile phone charger includes a housing, a rechargeable battery, and an output interface arranged on the housing and connected to the rechargeable battery. The charger is connected to an external power source through its own plug. The mobile phone is connected to the output interface on the casing to establish a connection with an external power supply, and the corresponding electric energy is converted by the charger to be input to the battery in the mobile phone. Such a charger is easy to use and easy to operate, but it also has some problems. Such a charger is only used as a transmission medium between the power supply and the mobile phone. When people go out or have no power supply indoors, people cannot help the mobile phone to charge in time, and they are highly dependent on the power supply. Affect the normal use of the mobile phone.

At present, there is also a mobile charger, which fully charges the rechargeable battery when people have a power source. When people are outside or without a power source, the electric energy stored in the charger can be used to charge the mobile phone, but it is often used when going out or not. In the case of a power supply, it is also easy to consume power. Its internal storage of power is limited, and the power inside the charger cannot be replenished in time after the mobile phone is charged. Therefore, the charger cannot be recycled and reasonably utilizes the characteristics of the external environment. , unable to absorb the corresponding energy in the external environment by itself, therefore, the use efficiency of this charger is not high, resulting in limitations in charging.

Contents of the invention

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art, and provide a solar charger for mobile phones. On the basis of the mobile charger, a solar battery panel is added, so that people can use it reasonably when they go out. The surrounding environment converts solar energy into electrical energy and stores it in the rechargeable battery of the charger, fully realizing energy-saving recycling.

The utility model specifically adopts the following technical solutions to solve the above-mentioned technical problems:

A solar charger for a mobile phone, comprising a housing, a rechargeable battery, an output interface connected to the rechargeable battery, a solar panel, a sampling circuit, a power conversion circuit, an A/D conversion circuit, a single-chip microcomputer, and a PWM control circuit, Wherein the solar cell panel is located on the surface of the casing; the solar cell panel and the rechargeable battery are respectively connected to the A/D conversion circuit through a sampling circuit; one end of the power conversion circuit is connected to the solar cell panel; the A/D The conversion circuit is connected to the single-chip microcomputer; the other end of the single-chip microcomputer and the power conversion circuit are connected to the PWM control circuit respectively; The sampling circuit samples the obtained solar energy and then transmits it to the A/D conversion circuit; the A/D conversion circuit converts the received solar energy into electrical energy and sends it to the single-chip microcomputer; the single-chip microcomputer controls the PWM after receiving the converted electrical signal A control circuit; the PWM control circuit stores the converted electric energy to the rechargeable battery.

As a preferred technical solution of the utility model: it also includes a liquid crystal display, and the liquid crystal display is connected with a single-chip microcomputer.

As a preferred technical solution of the utility model: a distance sensor and a light emitting diode are provided at the output interface, the distance sensor is connected to a single-chip microcomputer; the single-chip microcomputer is connected to the light-emitting diode.

As a preferred technical solution of the utility model: a voice prompter is also included, and the voice prompter is connected with a single-chip microcomputer.

As a preferred technical solution of the utility model: an elastic clamping portion is provided on the housing.

As a preferred technical solution of the utility model: the rechargeable battery is a lithium battery.

As a preferred technical solution of the utility model: the single-chip microcomputer is an 8051 single-chip microcomputer.

The utility model adopts the above scheme, which can produce the following technical effects:

The solar charger for mobile phones of the utility model uses a solar battery panel, an acquisition circuit, an A/D conversion circuit, a single-chip microcomputer, and a PWM control circuit, and realizes photoelectric conversion through the solar battery panel and the circuit, and converts the converted electric energy Stored in the rechargeable battery, after the DC voltage conversion by the circuit, it can charge the battery of the mobile phone, and can automatically stop charging after the battery is charged to charge the battery. The rechargeable battery can use a lithium battery, which makes the battery life longer. People bring great convenience, make people can in time automatically replenish electric energy to charger when going out, well realize the function of mobile charger. The use of 8051 single-chip microcomputer makes the corresponding speed higher. And during the charging process, the remaining power is displayed on the LCD screen, and after the charging is completed, the voice prompter is used to give voice prompts, thereby further enhancing the prompt function of the charger and ensuring a certain degree of safety.

At the same time, when the charger is used in low light conditions, the distance sensor and light-emitting diodes can be used to help illuminate the output interface, so that the connection line of the mobile phone can quickly and accurately find the output interface. When going out, in order to better absorb solar energy, the clamping part can be elasticized, so that the charger can be clamped on bags, clothes and other portable things, so that the area of the solar panel exposed to the sun can be maximized and fully absorbed. Solar power and convenient storage. Therefore, the use efficiency of the solar charger is improved, and it can be more conveniently provided for people to use.

Description of drawings

Fig. 1 is a schematic diagram of the principle of a solar charger for mobile phones according to the present invention.

Detailed ways

The specific implementation manner of the present utility model is described below in conjunction with accompanying drawing of description.

As shown in Figure 1, the utility model designs a kind of solar charger that is used for mobile phone, comprises housing, rechargeable battery, the output interface that is connected with rechargeable battery, also includes solar panel, sampling circuit, power conversion circuit, A /D conversion circuit, single-chip microcomputer, PWM control circuit, wherein the solar cell panel is located on the surface of the housing; the solar cell panel and the rechargeable battery are respectively connected to the A/D conversion circuit through a sampling circuit; one end of the power conversion circuit It is connected with the solar panel; the A/D conversion circuit is connected with the single-chip microcomputer; the other end of the single-chip microcomputer and the power conversion circuit are respectively connected with the PWM control circuit; the PWM control circuit is connected with the rechargeable battery; through the solar battery After the panel obtains solar energy, it is transmitted to the sampling circuit, and the sampling circuit samples the obtained solar energy and transmits it to the A/D conversion circuit; the A/D conversion circuit converts the received solar energy into electrical energy and sends it to the single-chip microcomputer; The single-chip microcomputer controls the PWM control circuit after receiving the converted electric signal; the PWM control circuit stores the converted electric energy to the rechargeable battery.

During the charging process, the remaining power can also be displayed on the LCD screen. After the charging is completed, a voice prompt is given through the voice prompter connected with the microcontroller. In the case of insufficient pipelines, a distance sensor and a light-emitting diode are arranged at the output interface, the distance sensor is connected with the single-chip microcomputer, and the single-chip microcomputer is connected with the light-emitting diode.

The specific working process of the utility model is as follows: firstly, when there is a power supply, the plug provided by the charger is connected to the external power supply, and the electric energy is stored in and out to realize the storage of the rechargeable battery. When going out or without power supply, place the charger under the sun, use the solar panel on the surface of the charger shell to absorb solar energy, use the solar panel as the energy core to supply power to the hardware circuit, and the control circuit uses the single-chip microcomputer as the core. The rechargeable battery can adopt a lithium battery, so that the battery has a longer service life, and the use of an 8051 single-chip microcomputer makes the corresponding speed higher. The acquisition and processing of data are realized by single-chip microcomputer. The single-chip microcomputer controls the sampling circuit connected to the solar panel to collect solar energy. The sampling circuit transmits the collected energy to the A/D conversion circuit for conversion into corresponding electric energy and then feeds it back to the single-chip microcomputer. , the single-chip microcomputer controls the PWM control circuit after receiving the converted electrical signal, the single-chip microcomputer realizes the control of the circuit through the PWM control circuit, and the PWM control circuit stores the converted electric energy to the rechargeable battery. When the sunlight is not strong enough, the single-chip microcomputer collects the electric energy in and out of the rechargeable battery by controlling the sampling circuit connected to the rechargeable battery, and transmits it to the PWM control circuit for control, so as to realize the recycling of electric energy, and the electric energy of the rechargeable battery is output through the output interface , the process of acquisition, conversion, control and storage is completed. During the charging process, the remaining power can also be displayed on the LCD screen, so that the user can grasp the power status of the charger in time. After the charging is completed, the voice prompter connected with the single-chip microcomputer is used for voice prompting, thereby further enhancing the prompting function of the charger.

In the case of insufficient pipelines, a distance sensor and a light-emitting diode are provided at the output interface. The distance sensor is connected to the single-chip microcomputer, and the single-chip microcomputer is connected to the light-emitting diode. When this function is used, the distance sensed by the distance sensor can be set in the single-chip microcomputer. For example, it can be one centimeter or other macro distances, so that when the connection line of the mobile phone is within the set range of the distance sensor, the distance sensor obtains the induction signal, and after conversion, it is input to the single-chip microcomputer, and the single-chip microcomputer controls the light-emitting diode to light up, thus, It makes it possible to quickly and accurately find the output interface when using the charger when the light is insufficient, saving time.

When going out, in order to better absorb solar energy, you can use elastic clamping parts, which are arranged on the surface of the housing, so that the charger can be clamped on bags, clothes, etc., so that the solar panel is exposed The area of the sun is maximized, fully absorbing solar energy, and convenient for storage.

Therefore, on the basis of the mobile charger, this solar charger enables people to make reasonable use of the surrounding environment when they go out, convert solar energy into electrical energy and store it in the rechargeable battery of the charger, fully realize energy-saving recycling, and improve the use efficiency. , which can be provided to people more conveniently.

The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings, but the present utility model is not limited to the above-mentioned embodiments. Make various changes below.

Claims (7)

1. A solar charger for a mobile phone, comprising a housing, a rechargeable battery, an output interface connected to the rechargeable battery, characterized in that it also includes a solar panel, a sampling circuit, a power conversion circuit, an A/D conversion circuit, Single-chip microcomputer, PWM control circuit, wherein the solar cell panel is located on the surface of the housing; the solar cell panel and the rechargeable battery are respectively connected to the A/D conversion circuit through the sampling circuit; one end of the power conversion circuit is connected to the solar cell panel ; The A/D conversion circuit is connected to the single-chip microcomputer; the other end of the single-chip microcomputer and the power conversion circuit are respectively connected to the PWM control circuit; the PWM control circuit is connected to the rechargeable battery. 2. The solar charger for a mobile phone according to claim 1, further comprising a liquid crystal display connected to a single-chip microcomputer. 3. The solar charger for mobile phones according to claim 1 or 2, characterized in that: a distance sensor and a light-emitting diode are arranged at the output interface, and the distance sensor is connected with a single-chip microcomputer; diode connection. 4. The solar charger for mobile phone according to claim 1 or 2, characterized in that it further comprises a voice prompter, and the voice prompter is connected with a single-chip microcomputer. 5. The solar charger for mobile phones according to claim 1 or 2, characterized in that: an elastic clamping portion is provided on the housing. 6. The solar charger for mobile phone according to claim 1 or 2, characterized in that: the rechargeable battery is a lithium battery. 7. The solar charger for mobile phone according to claim 1 or 2, characterized in that: the single-chip microcomputer is an 8051 single-chip microcomputer.