CN204517469U - A kind of electric automobile travelling wireless charging device - Google Patents
A kind of electric automobile travelling wireless charging device Download PDFInfo
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- CN204517469U CN204517469U CN201520167584.1U CN201520167584U CN204517469U CN 204517469 U CN204517469 U CN 204517469U CN 201520167584 U CN201520167584 U CN 201520167584U CN 204517469 U CN204517469 U CN 204517469U
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- pole
- resonance
- receiving
- electric automobile
- resonance ejection
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Abstract
The utility model discloses a kind of electric automobile travelling wireless charging device, comprise rectifier, several magnetic coupling resonance ejection pole group, vehicle-mounted resonance receiving poles, each magnetic coupling resonance ejection pole group comprises the first resonance ejection pole and the second resonance ejection pole.The direct current that rectifier exports, by being input to DC/AC high-frequency inverter after DC bus, being reverse into after high-frequency alternating current through DC/AC high-frequency inverter and outwards being sent by resonant circuit.Vehicle-mounted resonance receiving pole comprises the first receiving pole, second receiving pole of the electric automobile rear and front end that is placed in.The transmitting coil cross section of resonant circuit is strip, transverse arrangement of turbo, and the receiving coil cross section in vehicle-mounted resonance receiving pole is strip, vertically arranges.The utility model, by the appropriate design of structure and control strategy, realizes a continuous high-efficient wireless charging of advancing for electric automobile.
Description
Technical field
The utility model relates to the running wireless charging technical field of research of electric automobile, particularly a kind of electric automobile travelling wireless charging device.
Background technology
The existing wireless charging technology for electric automobile, be roughly divided into two classes, one class adopts magnetic inductive wireless power transmission technology, this technology is the Theory of Electromagnetic Field that application maxwell equation group is set forth, namely the electric field in change can change magnetic field, and same variation magnetic field can be transformed into changing electric field again.The spacing of this technology to charging is very sensitive, and require transmission range to need very near, generally within tens of milliseconds, belong to the transmission plan of air gap rank, its centering also requires strictly simultaneously.Comprehensive These characteristics, the magnetic inductive wireless power transmission technology electric automobile that can not realize generally efficiently charges between advancing.Another kind of is adopt the magnet coupled resonant type wireless technology of transmission of electricity based on resonance principle.Although this technology is adjusted the distance and centering is less demanding, realize still there is following problem to charging in electric automobile traveling process: 1) charge in wireless power transmission, the mutual inductance of two coils can change, and resonance point can offset; 2) impedance operator of storage battery can change along with storing electricity difference, can affect the maintenance of resonance point equally; 3) uninterruptedly charge in traveling process to realize electric automobile, the cost that coil is laid is very high.
Therefore, seek a kind of device that can carry out the wireless charging of efficient stable for the electric automobile in advancing and there is significant application value.
Utility model content
The purpose of this utility model is the deficiency for existing in existing electric automobile wireless charging technology, a kind of electric automobile travelling wireless charging device is proposed, this device is based on magnet coupled resonant type wireless charging technique, by structural design, realizing can continuous high-efficient wireless charging between the advancing of electric automobile.
The purpose of this utility model is realized by following technical scheme: a kind of electric automobile travelling wireless charging device, and comprise rectifier, several magnetic coupling resonance ejection pole group, vehicle-mounted resonance receiving poles, the input of described rectifier is connected with external electrical network; Magnetic coupling resonance ejection pole group is equidistantly arranged in the underground of carriage way, all be connected in parallel on DC bus, each magnetic coupling resonance ejection pole group comprises the first resonance ejection pole and the second resonance ejection pole, first resonance ejection pole and the second resonance ejection pole include DC/AC high-frequency inverter and resonant circuit, wherein the direct current of rectifier output is by being input to DC/AC high-frequency inverter after DC bus, is reverse into after high-frequency alternating current is outwards sent by resonant circuit through DC/AC high-frequency inverter; Described vehicle-mounted resonance receiving pole is arranged on electric automobile; The transmitting coil cross section of the extremely middle resonant circuit of described first resonance ejection pole and the second resonance ejection is strip, and transverse arrangement of turbo, the receiving coil cross section in described vehicle-mounted resonance receiving pole is strip, vertically arranges.Therefore in effective power transmission area, the overlapping area of transmitting coil and receiving coil is constant, thus can reduce sensitiveness and centering requirement that coupled resonance state changes relative position.
Preferably, described vehicle-mounted resonance receiving pole comprises the first receiving pole, the second receiving pole, charging circuit and storage battery, first receiving pole, the second receiving pole are placed in the rear and front end of electric automobile, all be connected with the input of charging circuit after the two is in parallel, charging circuit output is connected with storage battery.Receiving coil in the receiving pole of rear and front end can alternation, achieves the running trickle charge of electric automobile.
Further, described vehicle-mounted resonance receiving pole also comprises the first gate-controlled switch, the second gate-controlled switch and controller, described first receiving pole is connected with the first gate-controlled switch, and the second receiving pole is connected with the second gate-controlled switch, and the first gate-controlled switch, the second gate-controlled switch are all connected with controller.Closing by controller control switch, can after electric automobile enters charging section, and the first receiving coil in the first receiving pole and the second receiving coil in the second receiving pole compensate each other, realize high-efficiency and continuous charging.
Compared with prior art, tool has the following advantages and beneficial effect the utility model:
(1) in the utility model, transmitting coil and receiving coil overlapping area in transmission of electricity process is constant, thus can reduce sensitiveness and centering requirement that coupled resonance state changes relative position, decreases the impact of mutual inductance change.
(2) the first receiving pole and the two the first receiving pole compensating circuits each other in the utility model, impedance matching can be realized, compensate because storage battery charge state difference and relative position change the impact caused, maintain the efficient transmission of electricity of resonance condition.
(3) the utility model installs the receiving pole of two parallel operations in the front and back end of electric automobile, the receiving coil alternation in receiving pole, achieves the running trickle charge of electric automobile.
Accompanying drawing explanation
Fig. 1 is electric automobile travelling charging system schematic diagram of the present utility model.
Fig. 2 is that in the utility model, transmitting coil and receiving coil arrange schematic diagram.
Fig. 3 is the schematic diagram that charges between the utility model electric automobile is advanced.
Fig. 4 is the utility model coupled resonance working mechanism schematic diagram.
Diagram: 1-electrical network, 2-rectifier, 3-DC bus, 4-the first resonance ejection pole, 5-the second resonance ejection pole, 6-vehicle-mounted resonance receiving pole, the 61-the first receiving pole, 62-the second receiving pole, 63-the first gate-controlled switch, the 64-the second gate-controlled switch, 65-charging circuit, 66-storage battery, 67-controller.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited thereto.
Embodiment 1
Fig. 1 gives electric automobile travelling charging system schematic diagram of the present utility model, and comprise rectifier, several magnetic coupling resonance ejection pole group, vehicle-mounted resonance receiving poles, electrical network 1 is connected with rectifier 2, and the AC rectification of electrical network is become direct current.Many groups magnetic coupling resonance ejection pole group (4,5) is connected in parallel on DC bus 3, equidistantly be arranged in the underground of carriage way, the direct current that rectifier exports outwards sends by being input to after DC bus 3 in the group of magnetic coupling resonance ejection pole, and the vehicle-mounted resonance receiving pole be arranged on electric automobile charges in received energy in effective power transmission area.
Fig. 2 gives the present embodiment transmitting coil and receiving coil arranges schematic diagram.Each magnetic coupling resonance ejection pole group comprises the first resonance ejection pole 4 and the second resonance ejection pole 5, and each emitter includes DC/AC high-frequency inverter and resonant circuit.As figure, in the first resonance ejection pole 4 and the second resonance ejection pole 5, the transmitting coil cross section of resonant circuit is strip, transverse arrangement of turbo.The first receiving coil in the first receiving pole 61 in vehicle-mounted resonance receiving pole and the second receiving coil cross section in the second receiving pole 62 are strip, vertically arrange.Therefore in effective power transmission area, the overlapping area (the region A see in Fig. 2) of transmitting coil and receiving coil is constant, thus can reduce the mutual inductance change between two coils.
Fig. 3 give the utility model electric automobile advance between to charge schematic diagram.In figure, dotted line gives the efficient transmission scope of the first resonance ejection pole 4 and the second resonance ejection pole 5, and the spacing between two efficient transmission scopes is equal with the distance between two receiving coils in vehicle-mounted resonance receiving pole.Can ensure that twin coil is for subsequent use each other like this.
See Fig. 4, the vehicle-mounted resonance receiving pole of the present embodiment comprises the first receiving pole 61, second receiving pole 62, first gate-controlled switch 63, second gate-controlled switch 64, controller 67, charging circuit 65, storage battery 66, first receiving pole 61 is connected with the first gate-controlled switch 63, second receiving pole 26 is connected with the second gate-controlled switch 64, first gate-controlled switch, the second gate-controlled switch are connected with controller, charging circuit respectively, and charging circuit output is connected with storage battery.
Fig. 4 gives coupled resonance working mechanism, according to above-mentioned vibrational power flow, ensure that the coil of the first receiving pole 61 and the second receiving pole 62 compensates each other, after automobile enters charging section, the coil of the second receiving pole 62 is as energy acceptance coil, controller 67 controls gate-controlled switch 64, make its complete conducting, the coil circuit as a supplement of another one first receiving pole 61 simultaneously, by the switch control rule of controller 67, make the transmitting coil of the second resonance ejection pole 5 and the second receiving pole 62 maintain resonance condition under varying conditions, realize high-efficiency and continuous charging.
Above-described embodiment is the utility model preferably execution mode; but execution mode of the present utility model is not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection range of the present utility model.
Claims (3)
1. an electric automobile travelling wireless charging device, is characterized in that, comprise rectifier, several magnetic coupling resonance ejection pole group, vehicle-mounted resonance receiving poles, the input of described rectifier is connected with external electrical network; Magnetic coupling resonance ejection pole group is equidistantly arranged in the underground of carriage way, all be connected in parallel on DC bus, each magnetic coupling resonance ejection pole group comprises the first resonance ejection pole and the second resonance ejection pole, first resonance ejection pole and the second resonance ejection pole include DC/AC high-frequency inverter and resonant circuit, wherein the direct current of rectifier output is by being input to DC/AC high-frequency inverter after DC bus, is reverse into after high-frequency alternating current is outwards sent by resonant circuit through DC/AC high-frequency inverter; Described vehicle-mounted resonance receiving pole is arranged on electric automobile; The transmitting coil cross section of the extremely middle resonant circuit of described first resonance ejection pole and the second resonance ejection is strip, and transverse arrangement of turbo, the receiving coil cross section in described vehicle-mounted resonance receiving pole is strip, vertically arranges.
2. electric automobile travelling wireless charging device according to claim 1, it is characterized in that, described vehicle-mounted resonance receiving pole comprises the first receiving pole, the second receiving pole, charging circuit and storage battery, first receiving pole, the second receiving pole are placed in the rear and front end of electric automobile, all be connected with the input of charging circuit after the two is in parallel, charging circuit output is connected with storage battery.
3. electric automobile travelling wireless charging device according to claim 2, it is characterized in that, described vehicle-mounted resonance receiving pole also comprises the first gate-controlled switch, the second gate-controlled switch and controller, described first receiving pole is connected with the first gate-controlled switch, second receiving pole is connected with the second gate-controlled switch, and the first gate-controlled switch, the second gate-controlled switch are all connected with controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520167584.1U CN204517469U (en) | 2015-03-24 | 2015-03-24 | A kind of electric automobile travelling wireless charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520167584.1U CN204517469U (en) | 2015-03-24 | 2015-03-24 | A kind of electric automobile travelling wireless charging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204517469U true CN204517469U (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520167584.1U Expired - Fee Related CN204517469U (en) | 2015-03-24 | 2015-03-24 | A kind of electric automobile travelling wireless charging device |
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| Country | Link |
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| CN (1) | CN204517469U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753150A (en) * | 2015-03-24 | 2015-07-01 | 华南理工大学 | Electric vehicle advancing type wireless charging device and control method thereof |
-
2015
- 2015-03-24 CN CN201520167584.1U patent/CN204517469U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753150A (en) * | 2015-03-24 | 2015-07-01 | 华南理工大学 | Electric vehicle advancing type wireless charging device and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20180324 |