CN2506010Y - Electrodynamic induction charging equipment - Google Patents
Electrodynamic induction charging equipment Download PDFInfo
- Publication number
- CN2506010Y CN2506010Y CN 01253440 CN01253440U CN2506010Y CN 2506010 Y CN2506010 Y CN 2506010Y CN 01253440 CN01253440 CN 01253440 CN 01253440 U CN01253440 U CN 01253440U CN 2506010 Y CN2506010 Y CN 2506010Y
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- China
- Prior art keywords
- emitter
- connects
- coil
- base stage
- collector electrode
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- Expired - Fee Related
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- Y02E60/12—
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to an electromagnetic induction charging equipment, comprising a main coil which is arranged in a charging base and an induction wire loop which is arranged in the corresponding position in a charging body, wherein, the induction coil is connected with the anode and the cathode through a commuting circuit. The utility model is characterized in that the main coil is driven by a direct current power source through a high frequency push-pull oscillating circuit. The direct current power source can be commuted by a main bridge type commuting circuit. The high frequency push-pull oscillating circuit is formed by a triode V1 and a triode V2 as core and the main coil which comprises a branch coil L1, a branch coil L2, a branch coil L3. Compared with the prior art, the utility model has the advantages that the charging base and the charging body need not to contact by the exposed touch point directly and need no exact positioning, thereby completing the charging operation. The utility model adopts the high frequency push-pull oscillating circuit, thereby having a higher electromagnetic power transporting efficiency and safe, fast and reliable charging.
Description
Technical field
The utility model relates to a kind of charging device that is used for hand-held charging device, the electromagnetic induction charged device of contactless contact between particularly a kind of cradle and the charge bulk.
Background technology
Hand-held charge type small household appliances such as electric shaver, electric hair cutter, cordless telephone, when the rechargeable battery in it exhausts, must be shelved on the cradle and charge, pass through metal connector or hard contact and electrical connection mutually between the two, because the hard contact long term exposure outside, not only can cause loose contact, and also can cause more serious fault just in case be soaked in water because of the ingress of air oxidation.
Summary of the invention
Technical problem to be solved in the utility model is how to provide to need not the contact between a kind of cradle and the charge bulk and contact the electromagnetic induction charged device that can make the battery charge in the charge bulk.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: the electromagnetic induction charged device comprises the induction coil that is arranged on the main coil in the cradle and is arranged on correspondence position in the charge bulk, described induction coil links to each other with the both positive and negative polarity of rechargeable battery through rectification circuit, it is characterized in that described main coil is driven through the high frequency push-pull oscillator circuit by a direct current power supply.
Described DC power supply can be formed through the bridge rectifier rectification by civil power;
Described high frequency push-pull oscillator circuit is a core with triode V1, V2, the collector electrode of V1 connects the positive pole of DC power supply, be connected to biasing resistor R2 between the collector electrode of V1 and the base stage, the emitter of V1 connects its base stage through protection diode D5, the emitter of V2 connects the negative pole of DC power supply, the collector electrode of V2 and the emitter of V1 join, and are connected to biasing resistor R3 between the collector electrode of V2 and the base stage, and the emitter of V2 connects its base stage through protection diode D6; Described main coil then includes L1, L2, three subcoils of L3, the shared common port in the middle of of L1, L2 wherein, this public termination V1 emitter and V2 collector electrode connect end altogether, the other end of L1 connects the base stage of V1 after capacitor C 1, the other end one tunnel of L2 connects the collector electrode of V1 through capacitor C 3, another road connects the emitter of V2 through capacitor C 4, and the emitter of the termination V2 of L3, the other end connect the base stage of V2 through capacitor C 2.
Compared with prior art, advantage of the present utility model is, need not directly to contact between cradle and the charge bulk by the contact of exposing, also need not accurate contraposition, can finish charging operations, and the utility model adopts the high frequency push-pull oscillator circuit, electromagnetic energy efficiency of transmission height, charging safety and fast and reliable.
Description of drawings
Fig. 1 is applied to the example structure schematic diagram of charge type electric hair cutter for the utility model.
Fig. 2 is the circuit theory diagrams of the utility model embodiment.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, be the embodiment of a charge type electric hair cutter, comprise cradle 2 and electric hair cutter 1 (charge bulk), electric hair cutter 1 is shelved on the cradle 2;
Wherein contiguous within it both contact position of electric hair cutter 1 is provided with an induction coil L4 (showing among Fig. 1), and this induction coil L4 links to each other through the both positive and negative polarity of rectifier diode 7 with rechargeable battery E, referring to Fig. 2;
Wherein then be provided with main coil on the cradle, include L1, L2, three subcoils of L3, drive through the high frequency push-pull oscillator circuit by a direct current power supply;
Described DC power supply is for to be formed via the bridge rectifier rectification that diode D1～D4 constitutes by civil power;
Described high frequency push-pull oscillator circuit is a core with triode V1, V2, the collector electrode of V1 connects the positive pole of DC power supply, be connected to biasing resistor R2 between the collector electrode of V1 and the base stage, the emitter of V1 connects its base stage through protection diode D5, the emitter of V2 connects the negative pole of DC power supply, the collector electrode of V2 and the emitter of V1 join, and are connected to biasing resistor R3 between the collector electrode of V2 and the base stage, and the emitter of V2 connects its base stage through protection diode D6; Described main coil then includes L1, L2, three subcoils of L3, the shared common port in the middle of of L1, L2 wherein, this public termination V1 emitter and V2 collector electrode connect end altogether, the other end of L1 connects the base stage of V1 after capacitor C 1, the other end one tunnel of L2 connects the collector electrode of V1 through capacitor C 3, another road connects the emitter of V2 through capacitor C 4, and the emitter of the termination V2 of L3, the other end connect the base stage of V2 through capacitor C 2;
After the energized, the direct voltage that obtains between P, Q about 280V charges to capacitor C 3, C4, when the common contact Y voltage of capacitor C 3 and capacitor C 4 rises to certain value, coils L2, resistance R 3 to triode V2 base stage make the V2 conducting, because the step-down of diode D5 makes triode V1 base voltage be lower than conducting voltage, after the triode V2 conducting, capacitor C 4 coils L2, triode V2 discharge; The electric current of flowing through coil L3 makes triode V2 base voltage descend through capacitor C 2, diode D6 very soon, and triode V2 is ended; Capacitor C 4 stops discharge, transfers charging to, and the electric current of flowing through coil L1 rises and conducting triode V1 base voltage through capacitor C 1 simultaneously; Capacitor C 3 coils L2, triode V1 discharge, the discharging current on this moment coil L2 are opposite during with capacitor C 4 discharges, and the electric current of flowing through coil L1 makes the decline of triode V1 base voltage and ends through capacitor C 1, diode D5; Capacitor C 3 stops discharge, transfers charging to, and the electric current of flowing through coil L3 rises and conducting triode V2 base voltage through capacitor C 2 simultaneously; Above process moves in circles and produces the higher-order of oscillation;
The electromagnetic field inducing that coil L2 produces makes coil L4 two ends obtain an alternating voltage to coil L4, gives battery E charging after diode D7 rectification, capacitor C 5 filtering; M is the drive motors of electric hair cutter 1 among Fig. 2, and K is the operating switch of electric hair cutter, and the resistance R 4 of Light-Emitting Diode LED and series connection with it constitutes charging indication loop.
Claims (3)
1, a kind of electromagnetic induction charged device, comprise the induction coil that is arranged on the main coil in the cradle and is arranged on correspondence position in the charge bulk, described induction coil links to each other with the both positive and negative polarity of rechargeable battery through rectification circuit, it is characterized in that described main coil is driven through the high frequency push-pull oscillator circuit by a direct current power supply.
2, electromagnetic induction charged device according to claim 1, it is characterized in that described high frequency push-pull oscillator circuit is a core with triode V1, V2, the collector electrode of V1 connects the positive pole of DC power supply, be connected to biasing resistor R2 between the collector electrode of V1 and the base stage, the emitter of V1 connects its base stage through protection diode D5, the emitter of V2 connects the negative pole of DC power supply, the collector electrode of V2 and the emitter of V1 join, be connected to biasing resistor R3 between the collector electrode of V2 and the base stage, the emitter of V2 connects its base stage through protection diode D6; Described main coil then includes L1, L2, three subcoils of L3, the shared common port in the middle of of L1, L2 wherein, this public termination V1 emitter and V2 collector electrode connect end altogether, the other end of L1 connects the base stage of V1 after capacitor C 1, the other end one tunnel of L2 connects the collector electrode of V1 through capacitor C 3, another road connects the emitter of V2 through capacitor C 4, and the emitter of the termination V2 of L3, the other end connect the base stage of V2 through capacitor C 2.
3, electromagnetic induction charged device according to claim 1 and 2 is characterized in that described DC power supply is formed through the bridge rectifier rectification by civil power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01253440 CN2506010Y (en) | 2001-08-31 | 2001-08-31 | Electrodynamic induction charging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01253440 CN2506010Y (en) | 2001-08-31 | 2001-08-31 | Electrodynamic induction charging equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2506010Y true CN2506010Y (en) | 2002-08-14 |
Family
ID=33662941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01253440 Expired - Fee Related CN2506010Y (en) | 2001-08-31 | 2001-08-31 | Electrodynamic induction charging equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2506010Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419931C (en) * | 2004-12-22 | 2008-09-17 | 松下电工株式会社 | Switch with optical controlling function |
| CN1674757B (en) * | 2005-02-25 | 2010-04-28 | 上海宏源照明电器有限公司 | Electromagnetic inductive lamp circuit |
-
2001
- 2001-08-31 CN CN 01253440 patent/CN2506010Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419931C (en) * | 2004-12-22 | 2008-09-17 | 松下电工株式会社 | Switch with optical controlling function |
| CN1674757B (en) * | 2005-02-25 | 2010-04-28 | 上海宏源照明电器有限公司 | Electromagnetic inductive lamp circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |