CN201936311U - Wireless charging device for handheld radio frequency (RF) card reader - Google Patents
Wireless charging device for handheld radio frequency (RF) card reader Download PDFInfo
- Publication number
- CN201936311U CN201936311U CN201020690645XU CN201020690645U CN201936311U CN 201936311 U CN201936311 U CN 201936311U CN 201020690645X U CN201020690645X U CN 201020690645XU CN 201020690645 U CN201020690645 U CN 201020690645U CN 201936311 U CN201936311 U CN 201936311U
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- circuit
- card reader
- charging
- wireless
- radio
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- Expired - Fee Related
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Abstract
The utility model discloses a wireless charging device for a handheld radio frequency (RF) card reader, and comprises a charging circuit, a rechargeable battery, a wireless sending device and a wireless receiving device, wherein the charging circuit and the rechargeable battery are arranged in the RF card reader. The wireless sending device is provided with an LC oscillator sending circuit which is connected with a power supply, the wireless receiving device is arranged inside the RF card reader, the wireless receiving device forms an LC oscillator receiving circuit by a card reading coil, the output end of the LC oscillator receiving circuit is provided with a charging control circuit, the output end of the charging control circuit is provided with a rectifying circuit, a filter circuit and a voltage stabilizing circuit, the rectifying circuit, the filter circuit and the voltage stabilizing circuit are connected in sequence, and the output end of the voltage stabilizing circuit is connected with the input end of the charging circuit. The wireless charging device for the RF card reader adopts the card reading coil of the RF card reader as a coupling coil for the wireless charging, the energy which the LC oscillator sending circuit outputs is coupledly received by the coupling coil, the structure of the wireless charging device is simplified, and the cost is reduced. The RF card reader can be designed to be a fully enclosed structure, therefore water vapor and dusts are effectively prevented from entering into the RF card reader, and the working stability of the RF card reader is guaranteed.
Description
Technical field
The utility model relates to card reader charging technique field, relates in particular to a kind of hand-held RF card reader wireless charging device.
Background technology
When existing RF(Radio Frequency) radio-frequency card reader is worked generally is with battery or ac power supply, use powered battery to need often to change battery, adopt ac power supply need use professional power supply adaptor, need to be provided with the power source special interface on its RF radio-frequency card reader, though have and be provided with charging circuit in some RF radio-frequency card readers and rechargeable battery provides power supply to make the work of RF radio-frequency card reader, need to be provided with power interface on the RF radio-frequency card reader too, power interface connects external power source by connecting line, because the RF radio-frequency card reader may be used for moist and dusty occasion, and power interface that is provided with on the RF radio-frequency card reader and connecting line cause RF radio-frequency card reader outward appearance clean and tidy inadequately and seal bad, steam, dusts etc. easily enter and make its job insecurity in the RF radio-frequency card reader.
Summary of the invention
The purpose of this utility model is to provide a kind of charging inlet, hand-held RF card reader wireless charging device that reliability is high of need not.
The technical solution adopted in the utility model is: hand-held RF card reader wireless charging device comprises charging circuit of being located in the RF radio-frequency card reader and the rechargeable battery that is connected on the charging circuit, it also comprises wireless launcher and radio receiver, wireless launcher is provided with oscillator, voltage amplifier circuit, the power driving circuit of electric connection, oscillator, voltage amplifier circuit, power driving circuit link to each other with the output terminal of power supply respectively, and described power driving circuit output terminal is provided with LC vibration radiating circuit; Radio receiver is located at RF radio-frequency card reader inside, the input end of radio receiver is provided with electric capacity, Card Reader coil in described electric capacity and the RF radio-frequency card reader is formed LC vibration receiving circuit, LC vibration receiving circuit output terminal is provided with charging control circuit, the output terminal of charging control circuit is provided with rectification circuit, filtering circuit and the mu balanced circuit that links to each other successively, and the output terminal of mu balanced circuit connects the input end of charging circuit; When needs charge, LC is vibrated radiating circuit near LC vibration receiving circuit, the energy of LC vibration receiving circuit induction coupling LC vibration radiating circuit output produces electric energy, make the charging control circuit conducting, the electric current of charging control circuit output terminal output is transported to charging circuit through rectification circuit, filtering circuit and mu balanced circuit and charges to rechargeable battery, and when Card Reader was worked, the electric energy deficiency that the coil-induced coupling of Card Reader produces was so that the charging control circuit conducting, and charging circuit is not worked.
The vibrate oscillation frequency of receiving circuit of described oscillator, LC vibration radiating circuit and LC is consistent.
Described charging control circuit comprises the switching tube of two series connection, and the input end of switching tube is provided with the RC integrating circuit that connects LC vibration receiving circuit.
The beneficial effects of the utility model are: adopt said structure, LC vibration wireless receiving circuit is set in RF radio-frequency card reader inside, coupling receives the energy of LC vibration radiating circuit output, utilize the pickup coil of the Card Reader coil of RF radio-frequency card reader as wireless charging, simplify the structure of wireless charging device, reduce cost; The RF radio-frequency card reader adopts wireless charging, need on the RF radio-frequency card reader, charging inlet be set, the RF radio-frequency card reader can be designed to complete hermetically-sealed construction, prevents that effectively steam, dust from entering RF radio-frequency card reader inside, guarantees that the RF radio-frequency card reader also can steady operation under rugged surroundings.
Description of drawings
Now in conjunction with the accompanying drawings the utility model is further elaborated:
Fig. 1 is the circuit diagram of the utility model wireless launcher;
Fig. 2 is the circuit diagram of the utility model radio receiver.
Embodiment
As Fig. 1 or shown in Figure 2, the utility model comprises charging circuit of being located in the RF radio-frequency card reader 1 11 and the rechargeable battery 12 that is connected on the charging circuit 11, it also comprises wireless launcher 2 and radio receiver 3, wireless launcher 2 is provided with oscillator 21, voltage amplifier circuit 22, the power driving circuit 23 of electric connection, oscillator 21, voltage amplifier circuit 22, power driving circuit 23 link to each other with the output terminal of power supply 4 respectively, and described power driving circuit 23 output terminals are provided with LC vibration radiating circuit 24; Radio receiver 3 is located at RF radio-frequency card reader 1 inside, the input end of radio receiver 3 is provided with capacitor C 2, Card Reader coil L2 in described capacitor C 2 and the RF radio-frequency card reader 1 forms LC vibration receiving circuit 31, LC vibration receiving circuit 31 output terminals are provided with charging control circuit 32, the output terminal of charging control circuit 32 is provided with rectification circuit 33, filtering circuit 34 and the mu balanced circuit 35 that links to each other successively, and the output terminal of mu balanced circuit 35 connects the input end of charging circuit 11; When needs charge, LC is vibrated radiating circuit 24 near LC vibration receiving circuit 31, the energy of LC vibration receiving circuit 31 induction coupling LC vibration radiating circuits 24 outputs produces electric energy, make charging control circuit 32 conductings, the electric current of charging control circuit 32 output terminals output is transported to charging circuit 11 through rectification circuit 33, filtering circuit 34 and mu balanced circuit 35 and gives rechargeable battery 12 chargings, and when Card Reader is worked, the electric energy deficiency that Card Reader coil L2 induction coupling produces is so that charging control circuit 32 conductings, and charging circuit 11 is not worked.
The vibrate oscillation frequency of receiving circuit 31 of described oscillator 21, LC vibration radiating circuit 24 and LC is consistent.
Described charging control circuit 32 comprises switch transistor T 1, the T2 of two series connection, and the input end of switch transistor T 1, T2 is provided with the RC integrating circuit 36 that connects LC vibration receiving circuit 31.
The resistance of resistance R 1, R2, R3 all is a M Ω level in the RC integrating circuit 36, the reading card detection there is not influence during Card Reader work, the time of Card Reader coil L2 induction coupling is short during Card Reader, the electric energy that coupling produces is little, voltage in the RC integrating circuit 36 on the capacitor C 3 is very low, and deficiency is so that switch transistor T 2 conductings, and switch transistor T 1 can not conducting, so charging circuit 11 is not worked, do not influence Card Reader circuit operate as normal.When needs charge, the energy of the continuous coupled LC vibration of Card Reader coil L2 radiating circuit 24 outputs produces electric energy, the voltage of capacitor C 3 is enough to make switch transistor T 2 conductings in the RC integrating circuit 36, thereby make switch transistor T 1 conducting, the electric current of charging control circuit 32 output terminals output is transported to charging circuit 11 through rectification circuit 33, filtering circuit 34 and mu balanced circuit 35 and gives rechargeable battery 12 chargings.
Claims (3)
1. hand-held RF card reader wireless charging device, comprise charging circuit of being located in the RF radio-frequency card reader and the rechargeable battery that is connected on the charging circuit, it is characterized in that: it also comprises wireless launcher and radio receiver, wireless launcher is provided with oscillator, voltage amplifier circuit, the power driving circuit of electric connection, oscillator, voltage amplifier circuit, power driving circuit link to each other with the output terminal of power supply respectively, and described power driving circuit output terminal is provided with LC vibration radiating circuit; Radio receiver is located at RF radio-frequency card reader inside, the input end of radio receiver is provided with electric capacity, Card Reader coil in described electric capacity and the RF radio-frequency card reader is formed LC vibration receiving circuit, LC vibration receiving circuit output terminal is provided with charging control circuit, the output terminal of charging control circuit is provided with rectification circuit, filtering circuit and the mu balanced circuit that links to each other successively, and the output terminal of mu balanced circuit connects the input end of charging circuit; When needs charge, LC is vibrated radiating circuit near LC vibration receiving circuit, the energy of LC vibration receiving circuit induction coupling LC vibration radiating circuit output produces electric energy, make the charging control circuit conducting, the electric current of charging control circuit output terminal output is transported to charging circuit through rectification circuit, filtering circuit and mu balanced circuit and charges to rechargeable battery, and when Card Reader was worked, the electric energy deficiency that the coil-induced coupling of Card Reader produces was so that the charging control circuit conducting, and charging circuit is not worked.
2. hand-held RF card reader wireless charging device according to claim 1 is characterized in that: the vibrate oscillation frequency of receiving circuit of described oscillator, LC vibration radiating circuit and LC is consistent.
3. hand-held RF card reader wireless charging device according to claim 1, it is characterized in that: described charging control circuit comprises the switching tube of two series connection, the input end of switching tube is provided with the RC integrating circuit that connects LC vibration receiving circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020690645XU CN201936311U (en) | 2010-12-30 | 2010-12-30 | Wireless charging device for handheld radio frequency (RF) card reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020690645XU CN201936311U (en) | 2010-12-30 | 2010-12-30 | Wireless charging device for handheld radio frequency (RF) card reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201936311U true CN201936311U (en) | 2011-08-17 |
Family
ID=44447828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020690645XU Expired - Fee Related CN201936311U (en) | 2010-12-30 | 2010-12-30 | Wireless charging device for handheld radio frequency (RF) card reader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201936311U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9792467B2 (en) | 2013-03-26 | 2017-10-17 | Huawei Technologies Co., Ltd. | Wireless card reader and method for storing data |
| CN109921832A (en) * | 2019-02-20 | 2019-06-21 | 浙江讯联信息技术有限公司 | Wireless transmitting system, double-frequency card reader and its magnetic field method of supplying power to using it |
-
2010
- 2010-12-30 CN CN201020690645XU patent/CN201936311U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9792467B2 (en) | 2013-03-26 | 2017-10-17 | Huawei Technologies Co., Ltd. | Wireless card reader and method for storing data |
| CN109921832A (en) * | 2019-02-20 | 2019-06-21 | 浙江讯联信息技术有限公司 | Wireless transmitting system, double-frequency card reader and its magnetic field method of supplying power to using it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20131230 |