CN103545941A - Point-to-point cooperative work wireless charging coupler - Google Patents
Point-to-point cooperative work wireless charging coupler Download PDFInfo
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- CN103545941A CN103545941A CN201310566178.8A CN201310566178A CN103545941A CN 103545941 A CN103545941 A CN 103545941A CN 201310566178 A CN201310566178 A CN 201310566178A CN 103545941 A CN103545941 A CN 103545941A
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Abstract
The invention discloses a point-to-point cooperative work wireless charging coupler, and belongs to the field of wireless electric energy transmission and conversion. The point-to-point cooperative work wireless charging coupler can combine the advantages of the near-field resonance technology and the advantages of the inductive coupling technology, a system can work in a cooperative work state to achieve high-efficiency stable wireless charging, and the point-to-point cooperative work wireless charging coupler has broad market prospect. The point-to-point cooperative work wireless charging coupler comprises a wireless charging power source (1), wherein the wireless charging power source (1) loads high-frequency electromagnetic power to a transmitting terminal induction coil (4) through an on-off control switch (2) and an automatic tuning circuit (3), part of the high-frequency electromagnetic power is directly coupled to a receiving terminal induction coil (7), and coupling is formed between the other part of the high-frequency electromagnetic power and a transmitting terminal resonance coil (5). The transmitting terminal resonance coil (5) excites a non-radiative near field around the transmitting terminal resonance coil (5) to carry out resonance with a receiving terminal resonance coil (6) and to achieve energy transmission, wherein the frequency of the non-radiative near field and the frequency of the transmitting terminal resonance coil (5) are the same; energy is transmitted to the receiving terminal induction coil (7) in an inductive coupling mode, so that electricity is provided for a load (8).
Description
Technical field
Wireless power transmission technology is one of most active hot research direction in current electrical engineering field, it is the advanced subject that integrates basic research and application study, be the new research field of a multidisciplinary strong intersection of the outer academia of Present Domestic and industrial quarters exploration, contain many technical fields such as electromagnetic field, power electronic technology, electric power system, control technology, physics, materialogy, information technology.This technology completes transmission and the conversion of energy by the non-radiative near-field region between transmitting coil and receiving coil, can effectively overcome all kinds of defects that electric wire connected mode exists, realize freely powering of electronic apparatus, there is important application expection and vast potential for future development.
The present invention---point-to-point collaborative work wireless charging coupler, based on wireless power transmission know-why, design point-to-point coupled structure, utilize near field resonance and the advantage of responding to two kinds of technology of coupling simultaneously, the high efficiency wireless charging of realization in 1 meter of distance, the electrical characteristic of wireless charging system can be given full play to, the environment of public electricity-using occasion or various mobile kind equipment wireless powers can be widely used in.
Background technology
Wireless power transmission technology is broadly divided into three kinds: the first is inductive coupling type electric energy transmission, and it utilizes loosely coupled transformer principle to pass energy, and transmitting terminal and receiving terminal generally exist the core device that reduces loop magnetic resistance.The second is near field resonant mode delivery of electrical energy, by inductance on the resonator of high quality factor and distributed capacitor generation resonance transmitting energy.The third is electromagnetic radiation formula delivery of electrical energy, and in this technology, electric energy is converted into microwave form, and transmission range exceedance km, can realize the teletransmission of electric energy.Wherein near field harmonic technology utilizes non-radiative electromagnetic field near-field region to complete delivery of electrical energy, had very large expansion, but through-put power is less in transmission range; Induction coupling technique adopts the mode of electromagnetic induction, can in limited distance, complete high power transmission, therefore in conjunction with both technology, makes system works in collaborative state, can make the through-put power of radio energy transmission system and transmission range effectively improve.
Summary of the invention
Technical problem to be solved by this invention is, for near field harmonic technology through-put power finite capacity and the limited problem of induction coupling technique transmission range, point-to-point collaborative work wireless charging coupler is proposed, utilize the advantage separately of two kinds of technology simultaneously, make system works in collaborative work state, jointly improve through-put power and transmission range, realize the high efficient and reliable wireless transmission of electric energy.
The technical solution adopted in the present invention is: point-to-point collaborative work wireless charging coupler, include wireless charging power supply (1) High frequency electromagnetic power is loaded into transmitting terminal induction coil (4) above via make-and-break control switch (2) and automatic tuning circuit (3), a High frequency electromagnetic power part couples directly to receiving terminal induction coil (7); Another part and transmitting terminal resonance coil (5) produce coupling, transmitting terminal resonance coil (5) excites the radiationless near field of same frequency around at it, produce and resonate and realize Energy Transfer with receiving terminal resonance coil (6), mode with induction coupling is transferred to receiving terminal induction coil (7) again, thereby powers to load (8).
Described transmitting terminal induction coil (4) is 0.15mm by wire diameter
2, the number of turn is that the copper paint envelope curve coiling of 1000 circles and mutually insulated forms, coil has gradually open form structure of planar rectangular spiral, the outermost layer length of side is 35cm, the innermost layer length of side is 30cm, coil is laid on the high magnetic conduction ferrite flat board that specification is PC95, between wire and between wire and ferrite, adopts epoxy resins insulation glue to fix.
The copper tube that described transmitting terminal resonance coil (5) is 8mm by pipe diameter is made, copper tube outer cover has insulating barrier to guarantee between every circle without electrical contact, copper tube is fixed on by epoxide-resin glue on the coil rack of PVC material to guarantee that coil-span is constant, the two ends of copper tube are parallel with high pressure resistant metallic film resonant capacitance, choose suitable capacitance and guarantee that the resonance frequency of transmitting terminal resonance coil (5) is consistent with the operating frequency of transmitting terminal induction coil (4).
The copper tube that described receiving terminal resonance coil (6) is 8mm by pipe diameter is made, copper tube outer cover has insulating barrier to guarantee between every circle without electrical contact, copper tube is fixed on by epoxide-resin glue on the coil rack of PVC material to guarantee that coil-span is constant, the two ends of copper tube are parallel with high pressure resistant metallic film resonant capacitance, choose suitable capacitance and guarantee that the resonance frequency of transmitting terminal resonance coil (5) is consistent with the operating frequency of transmitting terminal induction coil (4); Position is coaxially fixed between transmitting terminal resonance coil (5) and receiving terminal induction coil (7) and with receiving terminal induction coil (7).
Described receiving terminal induction coil (7) is 0.15mm by wire diameter
2, the number of turn is that the copper paint envelope curve coiling of 1000 circles and mutually insulated forms, coil has gradually open form structure of planar rectangular spiral, the outermost layer length of side is 35cm, the innermost layer length of side is 30cm, coil is laid on the high magnetic conduction ferrite flat board that specification is PC95, between wire and between wire and ferrite, adopts epoxy resins insulation glue to fix; Coaxially fixing with transmitting terminal resonance coil (5) on position.
Point-to-point collaborative work wireless charging coupler of the present invention, the High frequency electromagnetic power that wireless charging power supply (1) is produced, a part directly transfers on receiving terminal induction coil (7) with the form of induction coupling, another part transfers to receiving terminal induction coil (7) above with the form of near field resonance, finally to load (8), jointly powers.This device utilizes the advantage separately of two kinds of technology simultaneously, makes system works in collaborative work state, can obtain the wireless power transmission effect of high efficient and reliable.
Accompanying drawing explanation
Fig. 1 is overall structure figure of the present invention;
Fig. 2 is the structure chart of transmitting terminal induction coil (4);
Fig. 3 is the structure chart of transmitting terminal resonance coil (5);
Location drawing when Fig. 4 is receiving terminal resonance coil (6) work.
Wherein:
(1): wireless charging power supply; (2): make-and-break control switch; (3): automatic tuning tracking circuit; (4): transmitting terminal induction coil: (5): transmitting terminal resonance coil; (6): receiving terminal resonance coil; (7): receiving terminal induction coil; (8): load; (9): high frequency ferrite; (10): PVC coil rack; (11): high pressure resistant metal thin film capacitor.
Embodiment
Below in conjunction with example and accompanying drawing, point-to-point collaborative work wireless charging coupler of the present invention is described in detail.
As shown in Figure 1, position of the present invention adaptive wireless charging coupler, include: wireless charging power supply (1), make-and-break control switch (2), automatic tuning circuit (3), transmitting terminal induction coil (4), transmitting terminal resonance coil (5), receiving terminal resonance coil (6), receiving terminal induction coil (7), load (8).
As shown in Figure 2, described transmitting terminal induction coil (4) has gradually open form structure of planar rectangular spiral, coil is laid on the high magnetic conduction ferrite flat board that specification is PC95, adopts epoxy resins insulation glue with fixed between wire and between wire and high frequency ferrite (9).When system works, transmitting terminal induction coil is loaded with High frequency electromagnetic power on (4), this power part is directly transferred to receiving terminal induction coil (7) in the mode of induction coupling, and another part is transferred to transmitting terminal resonance coil (5) with the same manner.
As shown in Figure 3, described transmitting terminal resonance coil (5) adopts copper tube to be fixed on PVC coil rack (10) by epoxide-resin glue, the two ends of copper tube are parallel with high pressure resistant metallic film resonant capacitance (11), choose suitable capacitance and guarantee that the resonance frequency of transmitting terminal resonance coil (5) is consistent with the operating frequency of transmitting terminal induction coil (4).When system works, there is vibration strongly in the transmitting terminal resonance coil (5) that is loaded with High frequency electromagnetic power, and in space, sets up non-radiative electromagnetic near field around.
As shown in Figure 4, described receiving terminal resonance coil (6) adopts copper tube to be fixed on PVC coil rack (10) by epoxide-resin glue, the two ends of copper tube are parallel with high pressure resistant metallic film resonant capacitance (11), choose suitable capacitance and guarantee that the resonance frequency of transmitting terminal resonance coil (5) is consistent with the operating frequency of transmitting terminal induction coil (4).When system works, transmitting terminal resonance coil (5) is consistent with the resonance frequency of receiving terminal resonance coil (6), thereby make the non-radiative electromagnetic near field of the mode of transmitting terminal resonance coil (5) by near field resonance from transmitting terminal resonance coil (5) surrounding space absorb energy, finally the mode with induction coupling is transferred to receiving terminal induction coil (7).
Claims (5)
1. point-to-point collaborative work wireless charging coupler, it is characterized in that including wireless charging power supply (1) High frequency electromagnetic power is loaded into transmitting terminal induction coil (4) above via make-and-break control switch (2) and automatic tuning circuit (3), a High frequency electromagnetic power part couples directly to receiving terminal induction coil (7); Another part and transmitting terminal resonance coil (5) produce coupling, transmitting terminal resonance coil (5) excites the radiationless near field of same frequency around at it, produce and resonate and realize Energy Transfer with receiving terminal resonance coil (6), mode with induction coupling is transferred to receiving terminal induction coil (7) again, thereby powers to load (8).
2. point-to-point collaborative work wireless charging coupler according to claim 1, is further characterized in that, described transmitting terminal induction coil (4) is 0.15mm by wire diameter
2, the number of turn is that the copper paint envelope curve coiling of 1000 circles and mutually insulated forms, coil has gradually open form structure of planar rectangular spiral, the outermost layer length of side is 35cm, the innermost layer length of side is 30cm, coil is laid on the high magnetic conduction ferrite flat board that specification is PC95, between wire and between wire and ferrite, adopts epoxy resins insulation glue to fix.
3. point-to-point collaborative work wireless charging coupler according to claim 1, be further characterized in that, the copper tube that described transmitting terminal resonance coil (5) is 8mm by pipe diameter is made, copper tube outer cover has insulating barrier to guarantee between every circle without electrical contact, copper tube is fixed on by epoxide-resin glue on the coil rack of PVC material to guarantee that coil-span is constant, the two ends of copper tube are parallel with high pressure resistant metallic film resonant capacitance, choose suitable capacitance and guarantee that the resonance frequency of transmitting terminal resonance coil (5) is consistent with the operating frequency of transmitting terminal induction coil (4).
4. point-to-point collaborative work wireless charging coupler according to claim 1, be further characterized in that, the copper tube that described receiving terminal resonance coil (6) is 8mm by pipe diameter is made, copper tube outer cover has insulating barrier to guarantee between every circle without electrical contact, copper tube is fixed on by epoxide-resin glue on the coil rack of PVC material to guarantee that coil-span is constant, the two ends of copper tube are parallel with high pressure resistant metallic film resonant capacitance, choose suitable capacitance and guarantee that the resonance frequency of transmitting terminal resonance coil (5) is consistent with the operating frequency of transmitting terminal induction coil (4), position is coaxially fixed between transmitting terminal resonance coil (5) and receiving terminal induction coil (7) and with receiving terminal induction coil (7).
5. point-to-point collaborative work wireless charging coupler according to claim 1, is further characterized in that, described receiving terminal induction coil (7) is 0.15mm by wire diameter
2, the number of turn is that the copper paint envelope curve coiling of 1000 circles and mutually insulated forms, coil has gradually open form structure of planar rectangular spiral, the outermost layer length of side is 35cm, the innermost layer length of side is 30cm, coil is laid on the high magnetic conduction ferrite flat board that specification is PC95, between wire and between wire and ferrite, adopts epoxy resins insulation glue to fix; Coaxially fixing with transmitting terminal resonance coil (5) on position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310566178.8A CN103545941A (en) | 2013-11-11 | 2013-11-11 | Point-to-point cooperative work wireless charging coupler |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310566178.8A CN103545941A (en) | 2013-11-11 | 2013-11-11 | Point-to-point cooperative work wireless charging coupler |
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| CN103545941A true CN103545941A (en) | 2014-01-29 |
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| CN201310566178.8A Pending CN103545941A (en) | 2013-11-11 | 2013-11-11 | Point-to-point cooperative work wireless charging coupler |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362771A (en) * | 2014-11-10 | 2015-02-18 | 刘跃进 | Dynamic magnetic coupling resonance array technology supporting wireless mobile charging of electric vehicle |
| TWI604975B (en) * | 2015-07-17 | 2017-11-11 | 松下知識產權經營股份有限公司 | Power wire retraction device and contactless insulated trolley using the same |
| CN109038857A (en) * | 2018-08-17 | 2018-12-18 | 天津工业大学 | A kind of dynamic radio power supply 3 D electromagnetic coupled system based on practical application operating condition |
| EP3437252A4 (en) * | 2016-04-12 | 2019-09-04 | Hewlett-Packard Development Company, L.P. | Conferencing system |
-
2013
- 2013-11-11 CN CN201310566178.8A patent/CN103545941A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362771A (en) * | 2014-11-10 | 2015-02-18 | 刘跃进 | Dynamic magnetic coupling resonance array technology supporting wireless mobile charging of electric vehicle |
| TWI604975B (en) * | 2015-07-17 | 2017-11-11 | 松下知識產權經營股份有限公司 | Power wire retraction device and contactless insulated trolley using the same |
| EP3437252A4 (en) * | 2016-04-12 | 2019-09-04 | Hewlett-Packard Development Company, L.P. | Conferencing system |
| CN109038857A (en) * | 2018-08-17 | 2018-12-18 | 天津工业大学 | A kind of dynamic radio power supply 3 D electromagnetic coupled system based on practical application operating condition |
| CN109038857B (en) * | 2018-08-17 | 2023-08-22 | 天津工业大学 | Dynamic wireless power supply three-dimensional electromagnetic coupling system based on actual application working conditions |
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Application publication date: 20140129 |