CN101286410A - Separating type electric power transformer - Google Patents
Separating type electric power transformer Download PDFInfo
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- CN101286410A CN101286410A CNA2007101004781A CN200710100478A CN101286410A CN 101286410 A CN101286410 A CN 101286410A CN A2007101004781 A CNA2007101004781 A CN A2007101004781A CN 200710100478 A CN200710100478 A CN 200710100478A CN 101286410 A CN101286410 A CN 101286410A
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Abstract
The invention relates to a separable power transformer used for wireless transmission of power and consists of a primary part (an emitting part) and a secondary part (a receiving part) which are separated completely, do not depend on any medium and can penetrate non-metal medium to transmit power; the emitting part is arranged outside the electric appliances and the receiving part is arranged inside the electric appliances; the emitting part comprises an LC emitting loop consisting of an emitting coil L1 (a primary coil) and a capacitor C1, a specific integrated block U1 for power emission, filtering capacitors C3 and C4 and a current-limiting resistor R1, etc.; the receiving part only comprises a receiving coil L2 (a secondary coil) or a receiving coil L2 working in state of resonance, etc.; the U1 and the L1 transform the power into magnetic energy which is emitted, and is received by the L2, thus realizing the wireless transmission of the power. The separable power transformer is suitable for various small-power electric appliances, in particular to the appliances with higher requirements for mobility and isolation, such as wireless lamps, wireless charging, underwater appliances, wireless stereo and wireless toys, etc.
Description
Technical field
The present invention relates to a kind of separating power transformer that is used for the electric power wireless transmission.
Background technology
Traditional transformer is all gone up around last primary coil and secondary coil at a magnetic conductor (iron core or magnetic core) and is formed, the main effect of this transformer has two aspects, at first be that two windings have been isolated, simultaneously, two windings are by the coupling of magnetic conductor, realized the transmission of electric energy, comprising the conversion of electric current and voltage.But, because the existence of magnetic conductor, not only weight and and volume on increased many (for coil, the weight of transformer is mainly derived from magnetic conductor), and two windings are constrained in together tightly, can't separate, from in appearance, they are one, therefore, all all will directly be connected with power supply (socket) by power line by the electrical equipment of exchange way power supply.Flexibility and freedom when this has not only limited electrical equipment and uses have also brought the hidden danger of short circuit and electric shock simultaneously, gently then damage electrical equipment, and be heavy then cause fire even life safety problem.
Summary of the invention
The objective of the invention is to create a kind of separate type transformer that is used for the electric power wireless transmission, it is made up of the primary and secondary two parts that separate fully, and primary part is exactly the electric power radiating portion, and sub section is exactly a power receiving portion.When being used to power, radiating portion places the outside (moulding separately) of electrical appliance, and receiving unit places the inside of electrical appliance.Radiating portion is launched primary coil that special-purpose integrated package and one works in resonance condition by an electric power and is converted electrical energy into magnetic energy and launch, receiving unit receives magnetic energy with a secondary coil, simultaneously magnetic energy is converted to electric energy, like this, electric energy just has been delivered to secondary coil from primary coil.Different with traditional transformer is, primary part is except there being primary coil, also have an electric power that closely links to each other with coil to launch special-purpose integrated package and minority related elements, owing to adopted electric power to launch special-purpose integrated package, the number of turn that makes two coils all seldom, only need one to a few, and transmitting and receiving of electric power do not rely on any medium between the coil, and can see through nonmetal medium work, therefore, this power transformer, just do not have the existence of magnetic conductor, so not only alleviated transformer weight and and volume, the primary coil of transformer is separated fully with secondary coil, when having realized wireless power, also realized separating fully of electrical appliance and power supply.
This separating power transformer, input be direct current, output be alternating current.
The leakage loss of this separating power transformer is minimum, and efficient is high, and raw material are had no special requirements, and complete cost nearly all concentrates on the electric power emission integrated package of a cheapness.Therefore, the present invention can be widely used in the various small-power electrical equipment of industry-by-industry, and the electrical equipment that mobility and isolation are had relatively high expectations especially is as wireless light fixture, wireless charging, the isolation power supply, wireless acoustics, wireless toy etc. of electrical equipment under water.
Description of drawings
Fig. 1 is the fundamental diagram of separating power transformer.
Fig. 2 is the figure that makes a practical application of a principle of the direct current supply of electric separation type power transformer.
Fig. 3 is the secondary schematic diagram that works in the separating power transformer of resonance condition.
Among Fig. 1, L1 is a transmitting coil, i.e. primary coil, and C1 is in parallel with L1, form launching circuit, this is a common LC resonant tank, can strengthen emission effciency, and U1 is that electric power is launched special-purpose integrated package, C3 and C4 are power filtering capacitor, R1 is a current-limiting resistance, powers to U1 by it, and these elements have been formed radiating portion of the present invention (being primary part) jointly.L2 is a receiving coil, and promptly secondary coil has been formed receiving unit of the present invention (being sub section).
Among Fig. 2, L2 is a receiving coil, and promptly secondary coil is a receiving unit of the present invention, the L2 output AC.D1 is a rectifying tube, and C5 and C6 are the secondary current filter capacitor, and the alternating current of L2 output becomes direct current through the D1 rectification after C5 and the C6 filtering.
Among Fig. 3, receiving coil L2 and capacitor C 2 are connected in parallel, P1 and P2 two ends output AC.
Embodiment
The circuit of the separating power transformer of electric power wireless transmission comprises that electric power emission and electric power receive two parts.Radiating portion is launched special-purpose integrated package U1 based on transmitting coil L1 and electric power, and radiating portion places the outside (moulding separately forms a power transmitter) of electrical appliance.Receiving unit is independently a coil L2 or a LC resonant tank of being made up of coil L2 and capacitor C 2, places the inside of electrical appliance.
Among Fig. 1, transmitting coil L1 and electric power launch special-purpose integrated package U1 and related elements has been formed primary part (being radiating portion), and receiving coil L2 is exactly a sub section (being receiving unit).Transmitting coil L1 forms an emission resonant tank with after output capacitance C1 is in parallel, launches the output frequency of special-purpose integrated package U1 when consistent when the resonance frequency and the electric power in this loop, has the highest emission effciency.The two ends of resonant tank are connected on output 2 pin that power input and electric power are launched special-purpose integrated package U1 respectively.The integrated package model is one of VOXxxMPxx series (x represents numeral), and the inside of U1 includes circuit such as electric power oscillator and electric power output.1 pin of U1 is the power input of electric power oscillator, and power supply is the internal oscillator power supply simultaneously through resistance R 1 current limliting step-down after C4 filtering.
Radiating portion separates fully with receiving unit, does not rely on any medium, and can penetrate nonmetal medium and work.
Receiving coil L2 is an independently coil, and P1 and P2 are two ends of this coil, when receiving coil L2 in the transmitting boundary of transmitting coil L1, L2 receives magnetic energy and changes electric energy into, P1 and P2 two ends output AC electric current.If capacitor C 2 in parallel has just formed a LC resonant tank at the two ends of receiving coil L2, as shown in Figure 3, launch the frequency of special-purpose integrated package U1 when consistent when the resonance frequency and the electric power in this loop, have the highest receiving efficiency.
Radiating portion uses DC power supply, if want Alternating Current Power Supply, should earlier interchange be become direct current, powers to radiating portion then.
L1 and L2 are respectively with enamelled wire or there is the lead winding number circle of insulating protective layer to be shaped; coil size and shape are not limit, and the number of turn is decided because of needs, but because of having adopted special electric power emission integrated package U1; therefore the number of turn of two coils all becomes seldom, just can work more than 1 circle.
The magnetic energy of transmitting coil L1 emission mainly is distributed in the both sides of coil, puts a reflecting plate as if being sidelong at one of L1, can improve the energy density of opposite side.When L2 when the L1, the magnetic energy major part is absorbed by L2 and is converted to electric energy, so leakage loss is very little.
The present invention is to the person poultry harmless in actual measurement, and household electrical appliances are not had influence.
Below be described further for example.
Fig. 2 is the figure that makes a practical application of a principle of the direct current supply of electric separation type power transformer.Circuit in the frame of broken lines is exactly a fundamental diagram of the present invention.D1 is the high speed rectifying tube among the figure, and C6 and C5 are filter capacitor, and the alternating current on the secondary coil L2 of transformer is after D1 rectification and C6, C5 filtering, and A and B two ends obtain direct current.L2 and D1, C6, C5 etc. place the inside of electrical appliance, and other element is whole elements of radiating portion, places the outside of electrical appliance, and the moulding separately of electric power radiating portion forms a power transmitter.
Claims (5)
1 one kinds of separating power transformers that are used for the electric power wireless transmission, its principal character is: transformer is made up of primary part (radiating portion) and sub section (receiving unit), and primary part partly separates with secondary wire.
2 separating power transformers according to claim 1 is characterized in that: do not rely on any medium between the primary coil of radiating portion and the secondary coil of receiving unit, and can see through nonmetal medium transmission electric energy.
3 separating power transformers according to claim 1 is characterized in that: radiating portion is mainly launched a special-purpose integrated package and a primary coil (transmitting coil) etc. by an electric power and is formed; Receiving unit mainly is made up of secondary coil (receiving coil) etc.
4 separating power transformers according to claim 1, it is characterized in that: transmitting coil is operated in resonance condition, and its resonance frequency is consistent with the output frequency of the special-purpose integrated package of emission; Receiving coil can work alone, and also can be operated under the resonance condition, and resonance frequency is consistent with tranmitting frequency.
5 separating power transformers according to claim 1 is characterized in that: radiating portion places the outside of electrical appliance, and receiving unit places the inside of electrical appliance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101004781A CN101286410A (en) | 2007-04-13 | 2007-04-13 | Separating type electric power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101004781A CN101286410A (en) | 2007-04-13 | 2007-04-13 | Separating type electric power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101286410A true CN101286410A (en) | 2008-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101004781A Pending CN101286410A (en) | 2007-04-13 | 2007-04-13 | Separating type electric power transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN101286410A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012100430A1 (en) * | 2011-01-28 | 2012-08-02 | Xiang Zhiyong | Electronic cigarette and wireless charging device thereof |
| CN104015627A (en) * | 2009-10-14 | 2014-09-03 | 松下电器产业株式会社 | Electric machine and power supply system having battery pack |
-
2007
- 2007-04-13 CN CNA2007101004781A patent/CN101286410A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015627A (en) * | 2009-10-14 | 2014-09-03 | 松下电器产业株式会社 | Electric machine and power supply system having battery pack |
| US9573485B2 (en) | 2009-10-14 | 2017-02-21 | Panasonic Intellectual Property Management Co., Ltd. | Electric machine and power supply system having battery pack |
| CN104015627B (en) * | 2009-10-14 | 2017-04-12 | 松下知识产权经营株式会社 | Electric machine and power supply system having battery pack |
| WO2012100430A1 (en) * | 2011-01-28 | 2012-08-02 | Xiang Zhiyong | Electronic cigarette and wireless charging device thereof |
| US8928277B2 (en) | 2011-01-28 | 2015-01-06 | Kimree Hi-Tech Inc | Electronic cigarette and a wireless charging device for the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Xiaoli Document name: Notification of Publication of the Application for Invention |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081015 |