CN201674242U - Wireless induction charger - Google Patents
Wireless induction charger Download PDFInfo
- Publication number
- CN201674242U CN201674242U CN2010201815581U CN201020181558U CN201674242U CN 201674242 U CN201674242 U CN 201674242U CN 2010201815581 U CN2010201815581 U CN 2010201815581U CN 201020181558 U CN201020181558 U CN 201020181558U CN 201674242 U CN201674242 U CN 201674242U
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- circuit
- frequency signal
- power supply
- frequency
- magnetic field
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- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a wireless induction charger, which is provided with a magnetic field detection switching circuit used for acquiring magnitude of magnetic fields of permanent magnets on a charging unit. When the magnitude of magnetic fields is higher than the preset threshold value or reaches the operating value of a magnetic switching device, high-frequency signals output by a high-frequency oscillating circuit are amplified by a high-frequency signal amplifying circuit and transmitted by a high-frequency signal transmitting circuit, alternating-current voltage signals output by a high-frequency signal receiving circuit are converted into direct-current voltage signals by a high-frequency AC voltage-to DC voltage conversion circuit, and batteries are charged by a charging circuit according to the direct-current voltage signals. The charging unit on the charging unit can be controlled to charge the batteries on the premise that a power supply unit dose not contact with the charging unit, thereby avoiding poor contact caused by oxidation corrosion between the power supply component and the charging component which contact with each other. In addition, the wireless induction charger is provided with a power supply high-frequency radiation suppression circuit, thereby reducing high-frequency radiation and decreasing interference to peripheral electronic devices.
Description
Technical field
The utility model relates to the charger technical field, particularly a kind of charger that adopts wireless induction to control.
Background technology
Charger is as the important equipment of portable type electronic product, and existing charger can't be opened automatically automatically when needs charge and charge, at battery electric quantity charge closing switch automatically during foot; This charger is in when charging simultaneously, and charging signals frequency height is easy to generate bigger radiated interference, thus to around the normal use that exerts an influence of other electronic and electrical equipments exert an influence, make the electric equipment products job insecurity that is disturbed.This charger charge efficiency is also lower, basically can't be by 3C (ChinaCompulsory Certification, the Chinese compulsory certificate) authentication test of China.
The utility model content
The technical problem that the utility model mainly solves provides a kind of radio induction charging device that reduces radiated interference, can avoid contact power supply or the easy oxide etch of charging contact component, thereby the loose contact that causes can reduce the influence of electronic and electrical equipment on every side simultaneously.
In order to address the above problem, the utility model provides a kind of radio induction charging device, this wireless induction power supply/charge device comprises inductive power supply unit and the charhing unit of controlling with this inductive power supply unit induction, and wherein, described charhing unit is provided with the permanent magnet that triggers described power supply unit work.
Preferably, described inductive power supply unit comprises that the high-frequency signal oscillating circuit suppresses circuit, detection of magnetic field switching circuit and high-frequency signal amplifying circuit with the power supply high frequency radiation that is connected with this high-frequency signal oscillating circuit respectively, and the high-frequency signal radiating circuit that is connected with this high-frequency signal amplifying circuit, wherein said detection of magnetic field switching circuit is surveyed the magnetic field of permanent magnet size.
Preferably, described charhing unit comprises the high-frequency signal receiving circuit that receives the emission of high-frequency signal radiating circuit and is dc voltage circuit to the high-frequency ac voltage conversion of signals of this high-frequency signal receiving circuit output, and by the charging circuit of this direct voltage control.
Preferably, described detection of magnetic field switching circuit comprises the He Er sensing element.
Preferably, transmitting coil is wrapped on the ferrite of high U value in the described high-frequency signal radiating circuit.
The utility model radio induction charging device, by being provided with the detection of magnetic field switching circuit of gathering the magnetic field of permanent magnet size on the charhing unit on the power supply unit, when magnetic field greater than preset threshold value or when reaching magnetic switch device operating value, described high-frequency signal oscillating circuit work, amplify by the high-frequency signal of high-frequency signal amplifying circuit the output of high-frequency signal oscillating circuit, and launch by the high-frequency signal radiating circuit, by the defeated dc voltage circuit that changes of high-frequency ac voltage the ac voltage signal of high-frequency signal receiving circuit output is converted to d. c. voltage signal, described charging circuit charges to battery according to d. c. voltage signal.Because the charging circuit that just can control on the charhing unit under described power supply unit and the discontiguous situation of charhing unit charges to battery, can avoid contact power supply or the easy oxide etch of charging contact component, thus the loose contact that causes.Described wireless induction power supply/charge device is provided with the power supply high frequency radiation and suppresses circuit, can reduce high frequency radiation, reduces electronic and electrical equipment interference on every side.Described wireless induction power supply/charge device comprises that also transmitting coil is wrapped on the ferrite of high U value in the high-frequency signal radiating circuit, can further strengthen charging current, improves charge efficiency.
Description of drawings
Fig. 1 is the utility model radio induction charging device embodiment theory diagram.
Below in conjunction with embodiment, and with reference to accompanying drawing, realization, functional characteristics and the advantage of the utility model purpose is described further.
Embodiment
As shown in Figure 1, the utility model proposes a kind of radio induction charging device embodiment.
Described radio induction charging device comprises: inductive power supply unit 1 ' and with the charhing unit 2 of this inductive power supply unit 1 ' induction control ', wherein, described charhing unit 1 ' the be provided with permanent magnet that triggers described power supply unit 2 ' work.
Specifically, described inductive power supply unit 1 ' comprise that high-frequency signal oscillating circuit 3 suppresses circuit 1, detection of magnetic field switching circuit 2 and high-frequency signal amplifying circuit 4 with the power supply high frequency radiation that is connected with this high-frequency signal oscillating circuit 3 respectively, and the high-frequency signal radiating circuit 5 that is connected with this high-frequency signal amplifying circuit 4, wherein said detection of magnetic field switching circuit 2 is surveyed the magnetic field of permanent magnet size.
Described charhing unit 2 ' comprise that high-frequency signal receiving circuit 6 that receives 5 emissions of high-frequency signal radiating circuit and the high-frequency ac pressure signal that this high-frequency signal receiving circuit 6 is exported are converted to dc voltage circuit 7, and charge by 8 pairs of batteries of charging circuit of this direct voltage control.Preferably, described detection of magnetic field switching circuit 2 comprises the He Er sensing element; Transmitting coil is wrapped on the ferrite of high U value in the described high-frequency signal radiating circuit 5.
The utility model radio induction charging device, by power supply unit 1 ' on be provided with gather charhing unit 2 ' on the detection of magnetic field switching circuit of magnetic field of permanent magnet size, when magnetic field greater than preset threshold value or when reaching magnetic switch device operating value, described detection of magnetic field switching circuit 2 conductings, 3 work of high-frequency signal oscillating circuit, high-frequency signal by 3 outputs of 4 pairs of high-frequency signal oscillating circuits of high-frequency signal amplifying circuit amplifies, and is launched by high-frequency signal radiating circuit 5.Described charhing unit 2 ' on the defeated dc voltage circuit 7 that changes of high-frequency ac voltage the ac voltage signal of high-frequency signal receiving circuit 6 outputs is converted to d. c. voltage signal, and control 8 pairs of batteries of described charging circuit and charge.
Because described power supply unit 1 ' with charhing unit 2 ' discontiguous situation under just can control charhing unit 2 ' on 8 pairs of batteries of charging circuit charge, can avoid contact to power or the easy oxide etch of contact component of charging, thus the loose contact that causes.
Described power supply high frequency radiation inhibition circuit 1 ' can reduce high frequency radiation reduces electronic and electrical equipment interference on every side.Transmitting coil is wrapped on the ferrite of high U value in the described high-frequency signal radiating circuit 5, can further strengthen charging current, improves charge efficiency.
By suitable parameter is set, but can adjust the distance of power supply unit and charhing unit induction charging.The utility model adopts 12Vdc/200mA that the charging current of 6Vdc/100mA just can be provided; If need obtain bigger charging current, only need to strengthen ferrite and get final product.Can be widely used in the contactless charging or the power supply of underwater installation, and need the place such as the oil of contactless charging or power supply to stand mine etc.
The above only is a preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (5)
1. radio induction charging device is characterized in that:
This radio induction charging device comprises inductive power supply unit and the charhing unit of controlling with this inductive power supply unit induction, and wherein, described charhing unit is provided with the permanent magnet that triggers described power supply unit work.
2. radio induction charging device according to claim 1 is characterized in that:
Described inductive power supply unit comprises that the high-frequency signal oscillating circuit suppresses circuit, detection of magnetic field switching circuit and high-frequency signal amplifying circuit with the power supply high frequency radiation that is connected with this high-frequency signal oscillating circuit respectively, and the high-frequency signal radiating circuit that is connected with this high-frequency signal amplifying circuit, wherein said detection of magnetic field switching circuit is surveyed the magnetic field of permanent magnet size.
3. radio induction charging device according to claim 1 and 2 is characterized in that:
Described charhing unit comprises the high-frequency signal receiving circuit that receives the emission of high-frequency signal radiating circuit and is dc voltage circuit to the high-frequency ac voltage conversion of signals of this high-frequency signal receiving circuit output, and by the charging circuit of this direct voltage control.
4. radio induction charging device according to claim 1 and 2 is characterized in that:
Described detection of magnetic field switching circuit comprises the He Er sensing element.
5. radio induction charging device according to claim 1 and 2 is characterized in that:
Transmitting coil is wrapped on the ferrite of high U value in the described high-frequency signal radiating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201815581U CN201674242U (en) | 2010-04-29 | 2010-04-29 | Wireless induction charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201815581U CN201674242U (en) | 2010-04-29 | 2010-04-29 | Wireless induction charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201674242U true CN201674242U (en) | 2010-12-15 |
Family
ID=43331650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201815581U Expired - Fee Related CN201674242U (en) | 2010-04-29 | 2010-04-29 | Wireless induction charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201674242U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013097334A1 (en) * | 2011-12-30 | 2013-07-04 | 中兴通讯股份有限公司 | Apparatus, system and mobile terminal for wireless charging |
| CN105383808A (en) * | 2014-09-03 | 2016-03-09 | 苹果公司 | Packaging for electronic device |
| CN106373228A (en) * | 2016-08-29 | 2017-02-01 | 杭州巴玺电子科技有限公司 | Intelligent safe passive lockset system and unlocking method thereof |
-
2010
- 2010-04-29 CN CN2010201815581U patent/CN201674242U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013097334A1 (en) * | 2011-12-30 | 2013-07-04 | 中兴通讯股份有限公司 | Apparatus, system and mobile terminal for wireless charging |
| CN105383808A (en) * | 2014-09-03 | 2016-03-09 | 苹果公司 | Packaging for electronic device |
| CN105383808B (en) * | 2014-09-03 | 2018-07-31 | 苹果公司 | Packaging for electronic equipment |
| US10283996B2 (en) | 2014-09-03 | 2019-05-07 | Apple Inc. | Packaging for an electronic device |
| CN106373228A (en) * | 2016-08-29 | 2017-02-01 | 杭州巴玺电子科技有限公司 | Intelligent safe passive lockset system and unlocking method thereof |
| CN106373228B (en) * | 2016-08-29 | 2019-02-19 | 杭州巴玺电子科技有限公司 | A kind of passive lock system of intelligent and safe and its method for unlocking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20150429 |
|
| EXPY | Termination of patent right or utility model |