CN203088638U - Wireless power transmission carpet - Google Patents
Wireless power transmission carpet Download PDFInfo
- Publication number
- CN203088638U CN203088638U CN2012207124590U CN201220712459U CN203088638U CN 203088638 U CN203088638 U CN 203088638U CN 2012207124590 U CN2012207124590 U CN 2012207124590U CN 201220712459 U CN201220712459 U CN 201220712459U CN 203088638 U CN203088638 U CN 203088638U
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- carpet
- electricity
- transmission
- coil
- magnetic resonance
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- Expired - Lifetime
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 57
- 230000005611 electricity Effects 0.000 claims abstract description 45
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 230000005672 electromagnetic field Effects 0.000 claims abstract description 4
- 230000005284 excitation Effects 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a wireless transmission of electricity carpet, including the carpet and with carpet fixed connection's magnetic resonance wireless transmission of electricity device, magnetic resonance wireless transmission of electricity device passes through wire, plug connection alternating current power supply, magnetic resonance wireless transmission of electricity device includes inverter circuit, drive circuit, exciting coil and the transmitting coil who is connected with the power, inverter circuit is used for improving the frequency of electric current to the resonant frequency with exciting coil, transmitting coil's resonant frequency is the same, with the drive exciting coil takes place the resonance, thereby makes produce electromagnetic induction between exciting coil and the transmitting coil, transmitting coil produces the required electromagnetic field of transmission of electricity in the space around the carpet to carry out non-contact's long distance power supply to the equipment in the space around the carpet through resonance coupling wireless power transmission mode.
Description
Technical field
The utility model relates to wireless technology of transmission of electricity field, relates in particular to a kind of wireless transmission of electricity carpet that utilizes the magnetic resonance transmission technology.
Background technology
But wireless power transmission is to utilize a kind of special installation to change electric energy the energy of radio transmission into, and at receiving terminal this energy is transformed back into electric energy, thereby consumer is carried out wireless power.
Existing wireless power transmission only is by electromagnetic induction principle, and two coils are positioned over close position, when electric current when a coil midstream is moving, the magnetic flux that is produced becomes media, causes also producing in another coil electromotive force.Wireless transmission of electricity product based on electromagnetic induction principle is also more and more, for example notification number is that the Chinese patent of CN202104503U discloses a kind of portable radiotelephone transmission of electricity table, adopt electromagnetic induction principle to transmit electricity to electronic products such as mobile phones, but mobile phone need be close to desktop places, or mobile phone is placed on the position very near apart from desktop (Centimeter Level) charges, distance is limited makes troubles to use, and reduces user's experience sense.
The utility model content
Technical problem to be solved in the utility model is, a kind of wireless transmission of electricity carpet is provided, and can increase the use experience of user to wireless transmission of electricity for electronic products such as mobile phone carry out wireless transmission of electricity under the situation of big distance.
In order to solve the problems of the technologies described above, the utility model provides a kind of wireless transmission of electricity carpet,
The wireless power transmitting device of magnetic resonance that comprises carpet and fixedly connected with described carpet, the wireless power transmitting device of described magnetic resonance passes through lead, plug connects power supply, the wireless power transmitting device of described magnetic resonance comprises the frequency changer circuit that is connected with power supply, drive circuit, excitation coil and transmitting coil, described frequency changer circuit is used for the frequency of electric current is brought up to resonant frequency with excitation coil, the resonant frequency of transmitting coil is identical, to drive described excitation coil generation resonance, thereby make between described excitation coil and the transmitting coil and produce electromagnetic induction, described transmitting coil produces the required electromagnetic field of transmission of electricity at the carpet surrounding space, and carries out contactless long distance power supply by the equipment of resonance coupling wireless power transmission mode in the carpet surrounding space.
As the improvement of such scheme, also comprise the communication control unit that is connected with described drive circuit, be used for by carrying out communication, to control the work of described drive circuit with the equipment that enters in the carpet surrounding space.
The enforcement the beneficial effects of the utility model are: by having increased the wireless power transmitting device of magnetic resonance on the normal domestic use carpet, when the user need transmit electricity to terminal electronic equipment, as long as enter the surrounding space zone of this carpet, just can realize that transmission of electricity connects.Transmission of electricity process to terminal electronic equipment, solved the user because of leaving behind charger or data wire, a difficult problem that does not perhaps have socket and can't in time transmit electricity for terminal electronic equipment, perhaps other wireless transmission of electricity solution scopes and the limited problem of equipment, enlarged markedly distance, the spatial dimension of wireless transmission of electricity, made the transmission of electricity process simple more, convenient.Simultaneously since wireless transmission of electricity carpet of the present utility model increased and wireless sending end between communication function, can realize the Communication Control of electronic equipment to the wireless power transmitting device of magnetic resonance, controlled the problem of waste of energy.
Description of drawings
Fig. 1 is the structural representation of a kind of wireless transmission of electricity carpet of the utility model;
Fig. 2 is the circuit theory diagrams of the wireless power transmitting device of magnetic resonance in the wireless transmission of electricity carpet shown in Figure 1.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer,, the technical scheme among the utility model embodiment is clearly and completely described below in conjunction with the accompanying drawing among the utility model embodiment.Obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the structural representation of the embodiment of a kind of wireless transmission of electricity carpet of the utility model.As shown in Figure 1, present embodiment is wireless, and the transmission of electricity carpet comprises carpet 1 and the wireless power transmitting device 2 of the magnetic resonance of fixedlying connected with described carpet, described magnetic resonance is wireless, and power transmitting device 2 connects power supply (figure does not show) by lead 3, plug 4, power supply is by lead 3(wire cable) be wireless power transmitting device 2 power supplies of magnetic resonance, make it produce the wireless power field, the equipment that can transmit electricity can be realized wireless transmission of electricity within its electric field coverage scales.
As shown in Figure 2, this magnetic resonance is wireless, and power transmitting device 2 comprises the frequency changer circuit 22 that is connected with power supply, excitation coil 23 and transmitting coil 24, described frequency changer circuit 22 is brought up to resonant frequency with excitation coil with the power frequency that receives, the resonant frequency of transmitting coil is identical, resonance takes place to drive described excitation coil 23, thereby make and produce electromagnetic induction (excitation coil 23 and transmitting coil 24 couplings) between described excitation coil 23 and the transmitting coil 24, described transmitting coil 24 produces the required electromagnetic field of transmission of electricity at the carpet surrounding space, and carries out contactless long distance power supply by the equipment of resonance coupling wireless power transmission mode in the carpet surrounding space.
Be understandable that, enter the electronic equipment in carpet 1 surrounding space, be provided with receiving system to receive described electric energy, this receiving system mainly comprises receiving coil and recovery coil, magnetic resonances take place with the transmitting coil 24 of the wireless power transmitting device 2 of magnetic resonance in the variation in magnetic field in the receiving coil induction surrounding space, and and recovery coil between produce electromagnetic induction, recovery coil produces the electric current of alternation under the effect of electromagnetic induction then, and it is the electronic equipment transmission of electricity that alternating current is converted to behind the direct current.
In addition, this magnetic resonance is wireless, and power transmitting device 2 also comprises the communication control unit 25 that is connected with described drive circuit, be used for by carrying out communication, thereby control the work (promptly controlling the electric energy emission) of described drive circuit, saves energy with the equipment that enters in the carpet surrounding space.
Need to prove, wireless power transmission technology based on the electromagentic resonance principle, resonance is so-called resonance in circuit, be meant that the vibration of maximum amplitude takes place under certain frequency in two or more loops with identical resonance frequency, resonance coupling wireless power transmission technology has utilized electromagentic resonance to realize the transmission of electric energy just.When the resonant frequency in two loops is identical, the intensity of their transmission energy can not be subjected to the influence of surrounding, promptly when launching circuit and receiving loop generation resonance, most of energy is delivered to receiving loop by launching circuit, and the middle object that resonance does not take place promptly can not absorb the transmission that too many energy can not hinder energy again.Equally, for a plurality of loops with identical resonant frequency, when they resonate simultaneously, thereby a plurality of receiving loop is done the vibration of big amplitude simultaneously, and the energy major part is absorbed by each receiving loop, and the efficient of system also can increase.
Resonance coupling wireless power transmission technology, its electric energy transmission range can reach 3m ~ 4m, and, can send high-power up to several kW.Therefore, it is big that resonance coupling wireless power transmission possesses through-put power, and the advantage of long transmission distance will be the wider new technique of a kind of range of application.
This is the theoretical foundation that the wireless transmission of electricity carpet of the utility model is realized, the electric energy on the long distance was transmitted on future, and this will be a trend.Wireless transmission of electricity carpet of the present utility model is used this technology in the family exactly and is used, and gives the bigger convenience of the mankind and the free degree.
In sum, the utility model when the user need transmit electricity to terminal electronic equipment, as long as enter the surrounding space zone of this carpet, just can realize that transmission of electricity connects by having increased the wireless power transmitting device of magnetic resonance on the normal domestic use carpet.Transmission of electricity process to terminal electronic equipment, solved the user because of leaving behind charger or data wire, a difficult problem that does not perhaps have socket and can't in time transmit electricity for terminal electronic equipment, perhaps other wireless transmission of electricity solution scopes and the limited problem of equipment, enlarged markedly distance, the spatial dimension of wireless transmission of electricity, made the transmission of electricity process simple more, convenient.Simultaneously since wireless transmission of electricity carpet of the present utility model increased and wireless sending end between communication function, can realize the Communication Control of electronic equipment to the wireless power transmitting device of magnetic resonance, controlled the problem of waste of energy.
The above is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection domain of the present utility model.
Claims (2)
1. wireless transmission of electricity carpet, it is characterized in that, the wireless power transmitting device of magnetic resonance that comprises carpet and fixedly connected with described carpet, the wireless power transmitting device of described magnetic resonance passes through lead, plug connects power supply, the wireless power transmitting device of described magnetic resonance comprises the frequency changer circuit that is connected with power supply, drive circuit, excitation coil and transmitting coil, described frequency changer circuit is used for the frequency of electric current is brought up to resonant frequency with excitation coil, the resonant frequency of transmitting coil is identical, to drive described excitation coil generation resonance, thereby make between described excitation coil and the transmitting coil and produce electromagnetic induction, described transmitting coil produces the required electromagnetic field of transmission of electricity at the carpet surrounding space, and carries out contactless long distance power supply by the equipment of resonance coupling wireless power transmission mode in the carpet surrounding space.
2. wireless transmission of electricity carpet as claimed in claim 1 is characterized in that, also comprises the communication control unit that is connected with described drive circuit, is used for by carrying out communication with the equipment that enters in the carpet surrounding space, to control the work of described drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207124590U CN203088638U (en) | 2012-12-20 | 2012-12-20 | Wireless power transmission carpet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207124590U CN203088638U (en) | 2012-12-20 | 2012-12-20 | Wireless power transmission carpet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203088638U true CN203088638U (en) | 2013-07-31 |
Family
ID=48840098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207124590U Expired - Lifetime CN203088638U (en) | 2012-12-20 | 2012-12-20 | Wireless power transmission carpet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203088638U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953718A (en) * | 2014-03-25 | 2015-09-30 | 美国博通公司 | Power amplifier for wireless power transmission |
-
2012
- 2012-12-20 CN CN2012207124590U patent/CN203088638U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953718A (en) * | 2014-03-25 | 2015-09-30 | 美国博通公司 | Power amplifier for wireless power transmission |
| CN104953718B (en) * | 2014-03-25 | 2017-12-15 | 安华高科技通用Ip(新加坡)公司 | power amplifier for wireless power transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |