CN204103560U - Electric motor car zero distance coupling wireless charging device - Google Patents
Electric motor car zero distance coupling wireless charging device Download PDFInfo
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- CN204103560U CN204103560U CN201420583498.4U CN201420583498U CN204103560U CN 204103560 U CN204103560 U CN 204103560U CN 201420583498 U CN201420583498 U CN 201420583498U CN 204103560 U CN204103560 U CN 204103560U
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- armature winding
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- secondary winding
- iron core
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Abstract
The utility model relates to electric motor car zero distance coupling wireless charging device, and sensitive switch Q1, Q2, Q3, Q4 are fixed on ground.The normally opened contact of four sensitive switches is series connection, and armature winding is serially connected in charge control loop.Being located at ground armature winding is be connected on ground by a return spring, pastes on the ground at ordinary times.Secondary winding connects onboard charger.Armature winding, secondary winding comprise iron core outer ring, iron core inner ring and winding composition.During charging, the normally opened contact of car front-wheel difference pressing Q1, Q2, Q3, Q4 tetra-sensitive switches, charge circuit is connected, and armature winding, by by very large electric current, can produce very powerful electromagnetic force, armature winding and secondary winding are pulled together.Secondary winding generation current charges the battery.The utility model is reasonable in design, convenient and practical, considerably reduces electromagnetic radiation, and efficiency of transmission brings up to more than 90%.
Description
Technical field
The present invention relates to electric automobile electrical technology field, specifically electric motor car wireless charging technical field.
Background technology
Existing charging electric vehicle mode almost all adopts wired charging modes.This charging modes not only adds the trouble of each charging attachment plug, and because charging plug plugs for a long time and easily causes loose contact.Because charging electric vehicle electric current is comparatively large, be generally ten amperes even tens amperes, the phenomenon therefore because of the excessive breaking out of fire of Plug contact resistance in charging process happens occasionally.Wireless charging technology, because do not have contact point, therefore thoroughly solves this problem.But because existing wireless charging mode really can be applied to automobile only has intermediate frequency electromagnetic coupled modes at present.But emitter and receiving device will have the distance of several centimetres to tens centimetres apart.So not only greatly reduce efficiency of transmission, and larger electromagnetic exposure can be produced.This device efficiency of transmission is introduced generally between 35%-60% according to data.The utility model " zero distance coupling wireless charging device " well solves this problem.It not only considerably reduces electromagnetic radiation, and efficiency of transmission can be made to bring up to more than 90%, and the simple scheme utilizing two-wheel to locate overcomes coupling device locates an inaccurate difficult problem.
Summary of the invention
The utility model overcomes the deficiency of prior art, a kind of zero distance wireless charging technology is provided, this device not only considerably reduces electromagnetic radiation, and efficiency of transmission can be made to bring up to more than 90%, and the simple scheme utilizing two-wheel to locate overcomes coupling device locates an inaccurate difficult problem.
The technical solution of the utility model is: electric motor car zero distance coupling wireless charging device, mainly comprises sensitive switch, armature winding, secondary winding, return spring.Wherein, sensitive switch comprises Q1, Q2, Q3, Q4, and they are individually fixed on ground, corresponding to electric motor car two front tyre position (as shown in Figure 3).The normally opened contact of four sensitive switches is series connection, and armature winding is serially connected in charge control loop.Armature winding and secondary winding are similar to the primary and secondary of the transformer of ribbon core on structural principle, are separately positioned on below ground and electric automobile chassis.And be located at ground armature winding be by a return spring be connected to ground and on, paste at ordinary times on the ground.Secondary winding connects onboard charger.
Described armature winding, secondary winding comprise iron core outer ring, iron core inner ring and winding composition, and winding is entangled in (as shown in Figure 4,5) between iron core outer ring and iron core inner ring.
When charging electric vehicle, after car reaches position, front-wheel depresses the normally opened contact of Q1, Q2, Q3, Q4 tetra-sensitive switches respectively, press time relay control switch, charge circuit is connected, and armature winding, by by very large electric current, can produce very powerful electromagnetic force, this strength can overcome the gravity of armature winding self and the pulling force of return spring, makes armature winding being pulled together with secondary winding tightly.Secondary winding generation current charges the battery.The structural principle of its effect and electromagnetic contactor is similar.Material is thus formed a zero clearance transformer.Therefore its efficiency of transmission can more than 90%.Armature winding free Control conduction time.Charging terminates rear armature winding auto-breaking, and it can automatically return to ground under the pulling force from gravity and spring.
The utility model armature winding and secondary winding location measure on, take the structure of two-wheel four point positioning.Before and after electric automobile and when right position differs 2 cm, charger just can not start.Require that driver moves electric automobile position again, only have when allowing electromagnetic coupling device substantially align and just can charge normal.To obtain the highest efficiency of transmission.Its principle as shown in Figure 3.Q1.Q2, Q3, Q4 tetra-normally opened contacts be series connection, be serially connected in charge control loop, when any one switch by pressure and time charger would not work.Only have four whole pressings of switch, charger just can work.At this time armature winding and armature winding are also just in time aimed at, to obtain best charge efficiency.
Technical essential of the present utility model:
1, critical component of the present invention is zero distance couple electromagnetic coupling device.In order to raise the efficiency, reduce radiation, reduce eddy current.Iron core cup type part and bottom all should use the cold-reduced silicon sheet coiling of surface insulation.Also can make of the cold-reduced silicon sheet of axially-aligned surface insulation bottom cup type.But difficulty is larger.
If 2 are designed to two kw of power, winding enamelled wire used should be 2 square millimeters with cross section---the high strength enamelled wire coiling of 2.5 square millimeters.In order to dispel the heat and protection against the tide, seal with epoxy resin pouring after winding answers drying.Its rainwater is splashed and soaks all can not leak electricity.
3, the spring of fixing primary sections, should be the dual-purpose springs of tension and compression.Namely turn-to-turn has the extension spring in gap.Only, spring strength has not just compressed just passable 6-8 after making to put primary sections.Impulsive force when winding falls can well be reduced like this.
4, Q1, Q2, Q3, Q4 can imbed subcutaneous, adjust to when wheel differs 2 cm all around and can not inhale and just can fix.
5, primary source line 4 square millimeters of bifilar sheath copper cash.For onboard charger, secondaryly directly receive former automobile charger power cord location.If external charger, should first charger be fixed on above electric automobile.
6, secondary winding is fixed on below electric automobile chassis, must be firm, and its bottom surface extreme lower position should higher than front bumper extreme lower position more than 3 centimetres.To avoid being scratched by the protruding object in ground during driving.
7, charging circuit is except set-up time relay, and can also increase winding temperature and detect, battery voltage detects, circuit over-current detection etc., is used for controlling the work of main charging circuit.
The utility model is reasonable in design, convenient and practical, considerably reduces electromagnetic radiation, and efficiency of transmission brings up to more than 90%.
Accompanying drawing explanation
Fig. 1 is the utility model structure chart;
Fig. 2 is the utility model circuit diagram;
Fig. 3,4 is primary and secondary winding construction figure;
Fig. 5 is sensitive switch layout.
Wherein: 1, sensitive switch 2, armature winding 3, secondary winding 4, return spring 5, iron core outer ring 6, iron core inner ring 7, winding
Specific embodiments
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Electric motor car zero distance coupling wireless charging device, mainly comprises sensitive switch 1, armature winding 2, secondary winding 3, return spring 4.Wherein, sensitive switch 1 comprises Q1, Q2, Q3, Q4, and they are individually fixed on ground, corresponding to electric motor car two front tyre position (as shown in Figure 3).The normally opened contact of four sensitive switches 1 is series connection, and armature winding 2 is serially connected in charge control loop.Armature winding 2 and secondary winding 3 are similar to the primary and secondary of the transformer of ribbon core on structural principle, are separately positioned on below ground and electric automobile chassis.And to be located at ground armature winding 2 be connected on ground by a return spring 4, paste on the ground at ordinary times.Secondary winding 3 connects onboard charger.Described armature winding 2, secondary winding 3 comprise iron core outer ring 5, iron core inner ring 6 and winding 7 and form, and winding 7 is entangled in (as shown in Figure 4,5) between iron core outer ring 5 and iron core inner ring 6.When charging electric vehicle, after car reaches position, front-wheel depresses the normally opened contact of Q1, Q2, Q3, Q4 tetra-sensitive switches 1 respectively, press time relay control switch, charge circuit is connected, and armature winding 2 will pass through very large electric current, very powerful electromagnetic force can be produced, this strength can overcome the gravity of armature winding self and the pulling force of return spring 4, and make armature winding 2 being pulled together with secondary winding 3 tightly, secondary winding 3 generation current charges the battery.
Claims (2)
1. electric motor car zero distance coupling wireless charging device, mainly comprises sensitive switch (1), armature winding (2), secondary winding (3), return spring (4); It is characterized in that, sensitive switch (1) comprises Q1, Q2, Q3, Q4, and they are individually fixed on ground, corresponding to electric motor car two front tyre position; The normally opened contact of four sensitive switches (1) is series connection, and armature winding (2) is serially connected in charge control loop; Armature winding (2) and secondary winding (3) are similar to the primary and secondary of the transformer of ribbon core on structural principle, are separately positioned on below ground and electric automobile chassis; Armature winding (2) is connected on ground by a return spring (4); Secondary winding (3) connects onboard charger.
2. electric motor car zero distance coupling wireless charging device according to claim 1, it is characterized in that, armature winding (2) and secondary winding (3) comprise iron core outer ring (5), iron core inner ring (6), winding (7) composition, and winding (7) is entangled between iron core outer ring (5) and iron core inner ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420583498.4U CN204103560U (en) | 2014-09-26 | 2014-09-26 | Electric motor car zero distance coupling wireless charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420583498.4U CN204103560U (en) | 2014-09-26 | 2014-09-26 | Electric motor car zero distance coupling wireless charging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204103560U true CN204103560U (en) | 2015-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420583498.4U Expired - Fee Related CN204103560U (en) | 2014-09-26 | 2014-09-26 | Electric motor car zero distance coupling wireless charging device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204103560U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993547A (en) * | 2015-07-24 | 2015-10-21 | 云南建工钢结构有限公司 | Electric vehicle charging device for mechanical spatial car parking garage |
-
2014
- 2014-09-26 CN CN201420583498.4U patent/CN204103560U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993547A (en) * | 2015-07-24 | 2015-10-21 | 云南建工钢结构有限公司 | Electric vehicle charging device for mechanical spatial car parking garage |
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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 |
Granted publication date: 20150114 Termination date: 20150926 |
|
| EXPY | Termination of patent right or utility model |