CN205160156U

CN205160156U - Wireless charging system

Info

Publication number: CN205160156U
Application number: CN201520988216.3U
Authority: CN
Inventors: 张峰; 蒋兆
Original assignee: Jiangsu Zimi Electronic Technology Co Ltd
Current assignee: Jiangsu Zimi Electronic Technology Co Ltd
Priority date: 2015-12-02
Filing date: 2015-12-02
Publication date: 2016-04-13
Anticipated expiration: 2025-12-02

Abstract

The utility model provides a wireless charging system, including power supply unit, a plurality of power unit, a plurality of primary, detecting element, trigger element, signal processing unit, the power supply unit provides the power that terminal equipment needs, power unit is used for in the future, and the electric signal transition of self -power unit is magnetism sensing signal, the magnetism sensing signal that a power unit that each primary will correspond provided sends to terminal equipment, electric signal transition was magnetism sensing signal's quantity and sends the detected signal according to quantity during detecting element detected each power unit, the trigger element is used for launching start -up system's triggering signal, signal processing unit is used for receiving detection signal and triggering signal to the control power unit opens and stops.

Description

Wireless charging system

Technical field

The utility model relates to a kind of charging technique, particularly a kind of wireless charging system.

Background technology

Along with the progress of science and technology, the popularity rate of intelligent apparatus or other carry-on electronic products is more and more higher.Wherein smart mobile phone replaces legacy mobile phone gradually, but smart mobile phone possesses the characteristic of large-screen and the computing of many merits because of it, along with the shortcoming of power consumption, causes the inconvenience in use.For head it off, intelligent apparatus and portable power source can link by user, the puzzlement of power depletion when avoiding being away from home.But in existing portable power source, the charging wire using and match with intelligent apparatus of must arranging in pairs or groups, or device itself is linked on charger just can charges, it is very inconvenient to use.

Summary of the invention

The purpose of this utility model is to provide a kind of wireless charging system, comprises power supply unit, some power cells, some primary coils, detecting unit, trigger element, signal processing unit; The power supply that described power supply unit provides terminal equipment to need; The signal of telecommunication that described power cell is used for self-powered unit is in the future converted to magnetic induction signal; The magnetic induction signal that one power cell of correspondence provides is sent to terminal equipment by each primary coil described; Described detecting unit detects the signal of telecommunication in each power cell and is converted to the quantity of magnetic induction signal and sends detection signal according to quantity; Described trigger element is used for the triggering signal of transmitter trigger system; Described signal processing unit for receiving detection signal and triggering signal, and controls power cell start and stop.

Adopt said system, described primary coil is matrix arrangement.

Improve as one of the present utility model, this system also comprises some isolated locations, and described isolated location connects a power cell primary coil corresponding with it, for reducing the interference between each primary coil.

Adopt said system, described trigger element is made up of transducer and peripheral circuit, and described transducer is light sensor, pressure sensor.

Adopt said system, in described detecting unit, also comprise a power threshold module and a time threshold module; Store a power threshold in described electricity judge module, if the signal of telecommunication is converted to magnetic induction number of signals and is less than power threshold in power cell, trigger and judge signal; Store a time threshold in described time judgment module, if judge, signal duration is greater than time threshold, triggers stopping signal in signal processing unit.

The utility model also provides a kind of wireless charging system to combine, and comprises and being made up of above-mentioned some wireless charging systems, described wireless charging system utility unit and signal processing unit.Between power cell in power supply unit and each wireless charging system, a regulon being set, inputing to this intrasystem power parameter for regulating power supply unit.

The utility model compared with prior art, has the following advantages: (1) adopts transducer to replace mechanical switch as trigger, can realize charging without the need to manual operation; (2) design judgment threshold value, electric current or the line of magnetic induction are lower than in power threshold a period of time when charging, shutdown system, and the article that non-required can be prevented to charge are placed on opening by mistake of the system caused above this system and open; (3) design detecting unit, detect the signal of telecommunication and be converted to the quantity of magnetic induction signal and send detection signal according to quantity, signal processing unit, according to detection signal, closes unwanted power cell, thus reduces the waste of power supply energy; (4) combination formed by multiple wireless charging system, the public power supply of this combination, and the output parameter that can adjust each wireless charging system according to load input parameter accordingly.

Below in conjunction with Figure of description, the utility model is further described.

Accompanying drawing explanation

Fig. 1 is principle schematic of the present utility model.

Fig. 2 is the utility model charging panel schematic diagram.

Fig. 3 is the utility model primary coil matrix arrangement schematic diagram.

Fig. 4 is that the utility model primary coil is coupled with terminal equipment secondary coil schematic diagram.

Fig. 5 is that many groups wireless charging system of the utility model introduction combinationally uses principle schematic.

Fig. 6 is a kind of embodiment schematic diagram of the utility model.

Embodiment

Composition graphs 1, a kind of wireless charging system, comprises power supply unit 1, power cell 4, primary coil 3, isolated location 2, detecting unit 5, trigger element 6, signal processing unit 7.This system described is positioned at the charging panel 8 times of wireless charging device, as shown in Figure 2.The terminal equipment for need charging corresponding with wireless charging system.The secondary coil 10-1 be coupled with primary coil 3 is comprised in described terminal equipment, the magnetic induction signal of secondary coil 10-1 is converted to the charhing unit 10-2 of the signal of telecommunication, described charhing unit 10-2 by electric signal transmission in the battery 10-3 of terminal equipment, as shown in Figure 4.

Described power supply unit 1 is electrically connected with power cell 4, power cell 4 is electrically connected with isolated location 2, isolated location 2 is electrically connected with primary coil 3, and detecting unit 5 is electrically connected with power cell 4, and described power supply unit 1, detecting unit 5, power cell 4 are electrically connected with signal processing unit 7 respectively.

The power supply signal that described power supply unit 1 provides terminal equipment to need.

Described power cell 4 is converted to magnetic induction signal in order to the power supply signal of self-powered unit 1 in future.

Magnetic induction signal is sent to terminal equipment by described primary coil 3.

Described primary coil 3 is close to charging panel 8 and arranges, and the arrangement in matrix-style, as shown in Figure 3.

In order to primary coil 3 magnetic line of force intersection problems of matrix arrangement, at power cell 4 and signal processing unit 7, isolated location 2 is set, cooperatively interact between each isolated unit 2, the magnetic line of force of each primary coil 3 is staggered, avoid intersecting, reduce the interference between each primary coil 3, reduce demagnetization, fall low-energy waste.

Described trigger element 6, for when there being terminal equipment to be positioned on charging panel 8, sends triggering signal, and this triggering signal can start whole wireless charging system and enter charged state.Described trigger element can realize the startup of system by a series of transducer.Such as light sensor, when terminal equipment to be put on charging panel and to shelter from light sensor, light sensor produces the signal of telecommunication according to the change of light and starts whole system; Such as pressure sensor again, when terminal equipment be put in charging panel changes the pressure of charging panel to pressure sensor time, pressure sensor produces the signal of telecommunication and starts whole system.

The effective energy that the quantity acquisition primary coil 3 that described detecting unit 5 is converted to magnetic induction signal by the signal of telecommunication in detection power unit 4 is received by terminal equipment, and according to above-mentioned formation number generating power signal, this power signal adjusts the energy of primary coil 3 by digital signal processor 7, eliminate the magnetic line of force not being in couple state, only retain the magnetic line of force being in couple state, reduce the loss of transmitting energy.In detecting unit 5, threshold value is set; at least comprise power threshold and time threshold; the quantity being converted to magnetic induction signal when the signal of telecommunication in detection power unit 4 is less than power threshold and threshold length of holding time, and detecting unit launches stopping signal, makes wireless charging system be in closed condition.

Described signal processing unit 7, for receiving triggering signal and stopping signal, sends signal according to different signals to power supply unit 1 and power cell 4 adjusted.

When wireless charging system runs, there are following three kinds of situations: the position of (1) primary coil 3 and secondary coil 10-1 one by one complete matching time, make primary coil 3 magnetic line of force all by secondary coil 10-1, the leakage of space radiation energy can be reduced to greatest extent; (2) primary coil 3 staggers with the position of secondary coil 10-1, primary coil 3 magnetic line of force all cannot pass through secondary coil 10-1, noenergy transmission between wireless charging device and terminal equipment, detecting unit 5 cue processor 7 cuts out the operation of each primary coil 3, and avoiding wastes energy; (3) primary coil 3 aligns with a position part of secondary coil 10-1, a part staggers, the only primary coil 3 of some and the aligned in position of secondary coil 10-1, the primary coil 3 of another part staggers with the position of secondary coil 10-1, detecting unit 5 cue processor 7 cuts out and is in the primary coil 3 staggered position, reduce the leakage of space radiation energy to greatest extent, reduce the waste of power supply energy.

Improve as one of the present utility model, this wireless charging system can multiplely be used in combination, as shown in Figure 5 and Figure 6, under all wireless charging systems are positioned at same charging panel, and public power supply unit 1 and a signal processor 7.Each wireless charging system is positioned at different regions, and region A as shown in Figure 5, region B, region C have a wireless charging system respectively.The parameter that in each region, power supply exports can be set respectively, between the power cell 4 of wireless charging system in power supply unit 1 and each region, regulon 9 can be set, for completing the parameter regulating power supply to export, to adapt to the input voltage and input current of different terminal equipment, as shown in Figure 6.

Claims

1. a wireless charging system, it is characterized in that, comprise power supply unit (1), some power cells (4), some primary coils (3), detecting unit (5), trigger element (6), signal processing unit (7);

The power supply that described power supply unit (1) provides terminal equipment to need;

Described power cell (4) is converted to magnetic induction signal for the signal of telecommunication in self-powered unit in future (1);

The magnetic induction signal that one power cell (4) of correspondence provides is sent to terminal equipment by described each primary coil (3);

Described detecting unit (5) detects the signal of telecommunication in each power cell (4) and is converted to the quantity of magnetic induction signal and sends detection signal according to quantity;

Described trigger element (6) is for the triggering signal of transmitter trigger system;

Described signal processing unit (7) for receiving detection signal and triggering signal, and controls power cell (4) start and stop.

2. system according to claim 1, is characterized in that, described primary coil (3) is in matrix arrangement.

3. system according to claim 1, it is characterized in that, this system also comprises some isolated locations (2), described isolated location (2) connects a power cell (4) primary coil (3) corresponding with it, for reducing the interference between each primary coil (3).

4. system according to claim 2, it is characterized in that, this system also comprises some isolated locations (2), described isolated location (2) connects a power cell (4) primary coil (3) corresponding with it, for reducing the interference between each primary coil (3).

5. system according to claim 1, is characterized in that, also comprises a power threshold module and a time threshold module in described detecting unit (5);

Store a power threshold in described electricity judge module, if the middle signal of telecommunication of power cell (4) is converted to magnetic induction number of signals be less than power threshold, triggers and judge signal;

Store a time threshold in described time judgment module, if judge, signal duration is greater than time threshold, triggers stopping signal in signal processing unit (7).

6. system according to claim 1, is characterized in that, described trigger element (6) is made up of transducer and peripheral circuit, and described transducer is light sensor, pressure sensor.

7. according to claim 1 ~ 6 any one, the wireless charging system of system composition combines, and it is characterized in that, comprises some wireless charging systems, described wireless charging system utility unit (1) and signal processing unit (7).

8. system in combination according to claim 7, it is characterized in that, between power cell (4) in power supply unit (1) and each wireless charging system, a regulon (9) being set, inputing to this intrasystem magnitude of voltage and current value for regulating power supply unit (1).