CN202150726U - Electric car wireless charging system - Google Patents
Electric car wireless charging system Download PDFInfo
- Publication number
- CN202150726U CN202150726U CN201120265544U CN201120265544U CN202150726U CN 202150726 U CN202150726 U CN 202150726U CN 201120265544 U CN201120265544 U CN 201120265544U CN 201120265544 U CN201120265544 U CN 201120265544U CN 202150726 U CN202150726 U CN 202150726U
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- charging system
- wireless charging
- rectification unit
- motor car
- electric car
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model discloses an electric car wireless charging system, comprising a power supply terminal in connection with electrical networks and a receiving terminal installed on an electric car and connected with electric car accumulators; the power supply terminal comprises a rectification unit, a high frequency inversion unit and a transmitting coil which are sequentially in series, wherein an input terminal of the rectification unit is in connection with the electrical networks; the receiving terminal comprises a receiving coil and a rectification unit which are in series, wherein an output terminal of the rectification unit is in connection with the electric car accumulators; the transmitting coil and the receiving coil are both provided with magnetic cores. The utility model also discloses an electric car using the wireless charging system. The electric car wireless charging system utilizes the electromagnetic coupling principle to perform electric energy wireless transmission with high efficiency and to solve the problems of present electric cars that contact charging is easy to abrade and the security is poor.
Description
Technical field
The utility model relates to the vehicle technology field, relates in particular to a kind of electric vehicle wireless charging system.
Background technology
Electric motor car is owing to using electric energy as the energy, and is therefore pollution-free, meets the environmental protection demand of society, obtains fast development at present.Common electric motor car by storage battery as its energy source, but existing storage battery when charging adopt the form of contact, easy to wear and poor stability.
Therefore, consider to adopt the mode of wireless charging to solve the defective that traditional contact is charged.The mode of existing wireless power can be divided into electromagnetic coupled, photoelectricity coupling and electromagentic resonance according to its principle.The photoelectricity coupling is to be converted into luminous energy to electric energy, such as laser, transfers energy to the destination through light and is converted into electric energy again.This wireless power technology is more directly perceived, and photoelectric conversion technique also is widely used relatively.But the bang path of light has defective, is exactly in the bang path barrier to be arranged.So this technology also is that very big applied defect is arranged.The principle of the similar acoustic resonance of electromagentic resonance principle, two media has identical resonance frequency, just can be used for transmitting energy.But should technology at present still under study for action, institute is can energy delivered very little, far can not satisfy the requirement of electric motor car charging.
Electromagnetic coupled is to utilize the alternating electromagnetic field of coupling to transmit energy, and wherein (Radio Frequency, RF) the wireless power technology has obtained more application at aspects such as radio frequency identification, portable electric appts, Internet of Things to radio frequency at present.But the low problem of existing wireless radiofrequency power supply ubiquity efficiency of transmission.
The utility model content
The utility model technical problem to be solved is to overcome the deficiency of prior art, and a kind of electric vehicle wireless charging system is provided, and can solve the problem of contact charging and wearing and tearing and poor stability, and energy transmission efficiency can satisfy the electric motor car demand.
The utility model adopts following technical scheme:
A kind of electric vehicle wireless charging system; Comprise the feeder ear that is connected with electrical network; And be installed in the electric motor car and the receiving end that is connected with the storage battery of electric motor car; Said feeder ear comprises rectification unit in sequential series, high-frequency inversion unit and transmitting coil, and wherein the input of rectification unit is connected with electrical network; Said receiving end comprises the receiving coil and the rectification unit of series connection, and wherein the output of rectification unit is connected with the storage battery of electric motor car; Magnetic core all is installed in transmitting coil and the receiving coil.
Preferably, said magnetic core is a high magnetoconductivity magnetic ferrite magnetic core.
Further, said transmitting coil is embedded in the face of land, and said receiving coil is installed on the electric motor car bottom.
A nearlyer step ground, said receiving coil is installed on the electric motor car bottom through a liftable device.
Utility model design according to the utility model; Also can obtain a kind of electric motor car; Comprise storage battery, this electric motor car also comprises the charging device that is connected with said storage battery, and said charging device is the receiving end in the said electric vehicle wireless charging system of above-mentioned arbitrary technical scheme.
The electric vehicle wireless charging system of the utility model utilizes the electromagnetic coupled principle, can carry out the wireless transmission of electric energy expeditiously, has solved the charge problem of existing easy to wear and poor stability of existing electric motor car contact.
Description of drawings
Fig. 1 is the structural representation of the electric vehicle wireless charging system of the utility model;
Fig. 2 is the principle schematic of the utility model one preferred version, and among the figure, 1 is transmitting coil, and 2 is receiving coil, and 3 is the liftable device, and 4 are electric motor car.
Embodiment
Be elaborated below in conjunction with the technical scheme of accompanying drawing to the utility model:
The electric vehicle wireless charging system of the utility model, as shown in Figure 1, comprise feeder ear and receiving end.Feeder ear comprises rectification unit in sequential series, high-frequency inversion unit, transmitting coil, and the input of rectification unit is connected with electrical network; Receiving end comprises the receiving coil and the rectification unit of series connection, and rectification unit is connected with the storage battery of electric motor car; Magnetic core all is installed in transmitting coil and the receiving coil.
During charging, the power current in the electrical network carries out rectification through the rectification unit of feeder ear, converts direct current into, is high-frequency alternating current through the high-frequency inversion cell translation then, converts electromagnetic wave into through the transmitting coil that has magnetic core at last; Receiving terminal receives electromagnetic wave and is translated into high-frequency alternating current through the receiving coil with the transmitting coil electromagnetic coupled, and being converted into direct current to alternating current through rectification unit then is charge in batteries.
Electromagnetic coupled degree between transmitting coil and the receiving coil has directly determined the energy transmission efficiency in the charging process, in order to improve energy transmission efficiency, can set about from two aspects.
On the one hand, can select suitable magnetic core so that the coupling coefficient of transmitting coil and receiving coil is bigger.Magnetic material can be divided into hard magnetic material and soft magnetic material, and wherein the soft magnetic material magnetic permeability is big, and coercive force is little, and magnetic hysteresis loss is low, and magnetic hysteresis loop becomes the elongated bar shape, and this material magnetizes easily, and also demagnetization easily is applicable to alternating magnetic field.And the soft magnetic ferrite in the soft magnetic material has higher resistance and littler power loss under high frequency.Therefore in the utility model, the magnetic core in transmitting coil and the receiving coil adopts high magnetoconductivity magnetic ferrite magnetic core.
On the other hand, because electromagnetic energy loss increases with distance, therefore should shorten the distance between transmitting coil and the receiving coil as far as possible.The utility model adopts scheme as shown in Figure 2, and transmitting coil 1 is embedded in the face of land, and receiving coil 2 is installed on electric motor car 4 bottoms through a liftable device 3.During charging, electric motor car 4 is placed on the transmitting coil 1, make transmitting coil 1 and receiving coil 2 over against, and descend through the height of liftable device 3 with receiving coil 2, make the distance of transmitting coil 1 and receiving coil 2 as far as possible little.
Claims (5)
1. electric vehicle wireless charging system; Comprise the feeder ear that is connected with electrical network; And be installed in the electric motor car and the receiving end that is connected with the storage battery of electric motor car; It is characterized in that said feeder ear comprises rectification unit in sequential series, high-frequency inversion unit and transmitting coil, wherein the input of rectification unit is connected with electrical network; Said receiving end comprises the receiving coil and the rectification unit of series connection, and wherein the output of rectification unit is connected with the storage battery of electric motor car; Magnetic core all is installed in transmitting coil and the receiving coil.
2. electric vehicle wireless charging system according to claim 1 is characterized in that said magnetic core is a high magnetoconductivity magnetic ferrite magnetic core.
3. electric vehicle wireless charging system according to claim 1 or claim 2 is characterized in that said transmitting coil is embedded in the face of land, and said receiving coil is installed on the electric motor car bottom.
4. like the said electric vehicle wireless charging system of claim 3, it is characterized in that said receiving coil is installed on the electric motor car bottom through a liftable device.
5. an electric motor car comprises storage battery, it is characterized in that, this electric motor car also comprises the charging device that is connected with said storage battery, and said charging device is the receiving end in each said electric vehicle wireless charging system of claim 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120265544U CN202150726U (en) | 2011-07-26 | 2011-07-26 | Electric car wireless charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120265544U CN202150726U (en) | 2011-07-26 | 2011-07-26 | Electric car wireless charging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202150726U true CN202150726U (en) | 2012-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120265544U Expired - Fee Related CN202150726U (en) | 2011-07-26 | 2011-07-26 | Electric car wireless charging system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202150726U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255367A (en) * | 2011-07-26 | 2011-11-23 | 宿迁市腾龙电动车制造厂 | Wireless charging system for electric vehicles |
| CN105603305A (en) * | 2014-11-17 | 2016-05-25 | Lg伊诺特有限公司 | Soft magnetic alloy, wireless power transmitting apparatus, and wireless power receiving apparatus including the same |
| CN105720832A (en) * | 2015-04-22 | 2016-06-29 | 周景振 | Magnetic resonance wireless charging transmission integration structure type resonance power supply |
| CN107825982A (en) * | 2012-06-27 | 2018-03-23 | 高通股份有限公司 | To the method and apparatus of electric car transmission wireless power |
| CN108023462A (en) * | 2017-12-30 | 2018-05-11 | 佛山中锦微电科技有限公司 | The opposed generator of disc type rotor |
| CN114394004A (en) * | 2021-12-31 | 2022-04-26 | 南京信息工程大学 | Battery car sharing wireless charging device |
-
2011
- 2011-07-26 CN CN201120265544U patent/CN202150726U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255367A (en) * | 2011-07-26 | 2011-11-23 | 宿迁市腾龙电动车制造厂 | Wireless charging system for electric vehicles |
| CN107825982A (en) * | 2012-06-27 | 2018-03-23 | 高通股份有限公司 | To the method and apparatus of electric car transmission wireless power |
| CN105603305A (en) * | 2014-11-17 | 2016-05-25 | Lg伊诺特有限公司 | Soft magnetic alloy, wireless power transmitting apparatus, and wireless power receiving apparatus including the same |
| CN105603305B (en) * | 2014-11-17 | 2019-08-02 | Lg伊诺特有限公司 | Magnetically soft alloy, wireless power transmission apparatus and reception device comprising it |
| CN105720832A (en) * | 2015-04-22 | 2016-06-29 | 周景振 | Magnetic resonance wireless charging transmission integration structure type resonance power supply |
| CN108023462A (en) * | 2017-12-30 | 2018-05-11 | 佛山中锦微电科技有限公司 | The opposed generator of disc type rotor |
| CN114394004A (en) * | 2021-12-31 | 2022-04-26 | 南京信息工程大学 | Battery car sharing wireless charging device |
| CN114394004B (en) * | 2021-12-31 | 2023-08-22 | 南京信息工程大学 | Wireless charging device is shared to storage battery car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120222 Termination date: 20120726 |