CN105720692A

CN105720692A - Transmission power supply resonance circuit plate for magnetic resonance wireless charging

Info

Publication number: CN105720692A
Application number: CN201510191572.7A
Authority: CN
Inventors: 周景振
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-22
Filing date: 2015-04-22
Publication date: 2016-06-29

Abstract

The invention relates to a transmission power supply resonance circuit plate for magnetic resonance wireless charging, which is also called as a transmission coil plate. The transmission power supply resonance circuit plate consists of an upper layer and a lower layer (5,6); the circuit principle image (7) is characterized in that: the upper layer is a resonance circuit inductance coil plate; the lower layer consists of two plate capacitors (C1 and C2); the view (8) is the structure in the side view; the two plate capacitors C1 and C2 are constructed by adopting the charge medium plane concept; '+' (3) is an anode red copper D 10 connection screw of the capacitor; the '-' (B,C,4) is the cathode red copper D10 connection screw of the capacitor; and the 'M' is a neutral connection through hole which is sued for installing and fixing or inserting the temperature sensor. The capacitor which is made through adopting the charge medium plane concept is easy to realize the integration of the standard members, can be adapted to the requirement of the high-voltage strong-current and high-oscillation circuit and benefits the several-kilowatt-level wireless electric energy transmission.

Description

Magnetic resonance wireless charging is with sending power supply resonant tank plate

Technical field

The present invention relates to the structure of a kind of high-power LC high-frequency circuit, the structure of the resonant tank plate that the high-energy resonance coil of particularly magnetic resonance wireless power transmission is constituted with electric capacity, belong to power high frequency power technique fields.

Background technology

Before the present invention occurs, relate to LC and shake inductance and the capacity cell in loop, and circuit structure is all the winding method adapting to micropower, the capacitor made by the method, charge density and the voltage bearing capacity of its metallic film are rather limited, and are therefore unfavorable for that the resonant tank realizing thousands of watts of power level makes.

Summary of the invention

It is an object of the invention to overcome above-mentioned deficiency, provide a kind of can at the double-layer structural resonance circuit template integrated package of 82 to the 100kH bandwidth of 3.3kW to 120kW power bracket, its realization is characterised by: upper strata is a high-frequency and high-voltage and adapts in the highest 100kHz resonant frequency, and the highest 400A operating current planar spiral winding, lower floor a kind of designs based on dielectric charge plane and integrated structuring concept, can bear plate resonant capacitor and the phase compensation capacitor of 30kV voltage and 600A electric current.Invent proposed design, realize being useful to the so powerful wireless power transmission of magnetic resonance.

Accompanying drawing explanation

Fig. 1 is front-side circuit principle and the element plane layout of the present invention；

Fig. 2 and Fig. 3 is the side-looking hierarchical structure schematic diagram of the present invention；

Fig. 4 is the resonant inductor structural map of the present invention；

In Fig. 1,1 is the flat resonant capacitor of electric charge interface, and 2 is its phase compensation capacitor；

In Fig. 1,3 is the D10mm copper screw that " just " pole of the electric charge interface capacity plate antenna of the present invention connects, and it 4 is " bearing " level screw；

The junction point that " A " and " C " in Fig. 1 is resonant inductor, " A " and " B " is resonant tank junction point；

" M " in Fig. 1 is neutral connecting hole, be in one with the installing hole of capacitive insulation and temperature sensor insert hole；

In Fig. 25 are inductance coil element layer, and 6 is capacitance body layer；

In Fig. 38 are the internal structure level schematic diagram of side-looking；

The resonant inductor that in Fig. 49 are constituted for red copper square tube, it 11 is coil section schematic diagram, 10 for inductance coil politef dielectric plate；

" C " and " B " in Fig. 4 is resonant capacitance junction point.

Detailed description of the invention

The magnetic resonance wireless transmission resonant tank plate of the present invention, the design illustrated with reference to the accompanying drawings is implemented:

First the operating point in integration component specification of the present invention is selected, i.e. one of 4 resonance frequency 82.5kHz, 86.4kHz, 91.6kHz, 97.2kHz selections in magnetic resonance frequency bandwidth 82kHz-100kHz, and 10 power grades one of 3.3kW, 7.7kW, 15kW, 22kW, 32kW, 48kW, 66kW, 78kW, 92kW, 120kW, carry out selective resonance loop integrated package.

Referring to Fig. 1, resonant tank plate, is square thin plate according to the power specification grade of the present invention, the length of side respectively 42,46,52,56,62,66,68 centimetres of 7 specifications, identical with resonance coil dielectric-slab.It is 3.2,3.8,4.6 centimetres of 3 specifications that upper coil adds the total thickness of slab specification of lower floor's capacitance body.

Referring to 1 in Fig. 1, the structure of resonant capacitance and compensation electric capacity is according to the concept 5.3pF/cm in the charge mediator face in the present invention²Select integrated capacitance pole plate and the chain joint assembly of specification in the present invention.

Referring to Fig. 4, according to the dielectric-slab size of technical solution of the present invention normative choice resonance coil, the red copper square tube size specification of resonance coil is outer through 12mm, internal diameter 6mm.Accurate for inductance value, the dimensions of side's copper tube coil is fixing, minimum to achieve exchange kelvin effect under 400A, 100kHz operating mode and thermal losses.

Claims

1. a magnetic resonance wireless charging is with sending power supply resonant tank plate, it has a resonant inductor and two resonant capacitors, and one of them resonant capacitor is main higher-order of oscillation electric capacity, and another is the phase compensation capacitor of oscillation circuit, it is characterized in that, including:

-resonant tank plate adopts thin board type profile (1,5,6), thickness is less than 4 centimetres, it is divided into levels structure, 2 centimetres of upper strata is the inductance coil that shakes (5), and lower floor is dielectric plane plate-type capacitor (6), and oscillating capacitance has identical structure and thickness with compensating electric capacity.

Resonant inductor (5) dielectric-slab of-circuit board that shakes and the medium version of plane capacitance all adopt polytetrafluoroethylmaterial material, and the former is that 4mm is thick, and the latter is that 0.3mm is thick, is the thickness of electrolyte simulation optimization.

-adapt to the flat layout of high frequency energy oscillation and the size of component and interconnection mode, be conducive to heat radiation with stable.

The shape and size of-resonant inductor and red copper square tube material (8) of selection.

2. resonant tank plate as claimed in claim 1, resonant capacitor C1 and C2, is the electric charge interface principle planar capacitor of a kind of new ideas design, it is characterised in that including:

The integrated structure of-welding (3,4, A, B, C, M) assembly model, capacitor assembly can standardization；

-dielectric substance polyfluortetraethylene plate and capacitor plate size C1 (1): 36 centimeter length 20 centimetres are wide, and C2 (2): 36 centimeter length 10 centimetres wide are with the achievement according to resonant frequency simulation calculation.

3. resonant tank plate as claimed in claim 1, resonant inductor L1 (5), it it is a kind of planar inductor adapting to high frequency high energy, it is characterized in that: red copper square tube material and coil shape thereof, the outer length of side 12mm of coil, interior length of side 6mm, snail 11 encloses, and is the achievement emulated through 100kHz frequency and 400A current electromagnetic.

4. transmission resonant tank plate as claimed in claim 1, its magnetic resonance sends resonance circuit and is characterized by: LC1 series resonance adds phase compensation electric capacity C2 (7).