CN106992606A - A kind of device of integrated wireless charging receiving coil and antenna function - Google Patents
A kind of device of integrated wireless charging receiving coil and antenna function Download PDFInfo
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- CN106992606A CN106992606A CN201710119158.4A CN201710119158A CN106992606A CN 106992606 A CN106992606 A CN 106992606A CN 201710119158 A CN201710119158 A CN 201710119158A CN 106992606 A CN106992606 A CN 106992606A
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- 238000007600 charging Methods 0.000 title claims abstract description 49
- 238000004804 winding Methods 0.000 claims abstract description 56
- 239000000758 substrate Substances 0.000 claims abstract description 26
- 238000013461 design Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 241001061264 Astragalus Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- H02J7/025—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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Abstract
The invention discloses a kind of integrated wireless charging receiving coil and the device of antenna function, including medium substrate, the first spiral winding, the second spiral winding and switching circuit, metallic vias is provided with medium substrate, first spiral winding and the second spiral winding are separately positioned on the top layer and bottom of medium substrate, and are connected by metallic vias；Switching circuit is arranged on medium substrate, and provided with a switch chip, provided with six pins in the middle of chip, the left side is provided with two wireless charging signal pins, the right is provided with six power supply/control signal pins, in six middle pins, one pin is connected with the first spiral winding and the second spiral winding respectively by the first microstrip line, two pins are connected with two pins in six power supplys/control signal pin respectively, one pin is connected with a pin in two wireless charging signal pins, and a pin connects RF/Microwave Integrated Circuits by the second microstrip line.The present invention can reduce the use of electronic device.
Description
Technical field
The present invention relates to a kind of electronic device, the device of especially a kind of integrated wireless charging receiving coil and antenna function
Part, belongs to wireless charging technical field.
Background technology
Wireless charging technology has been widely applied with portable consumer-elcetronics devices, also may be used in electric vehicle
To see widely using for wireless charging technology.Based on electromagnetic induction principle, energy can pass through two coils close to each other
It is transferred in rechargeable battery.The removal of charge cable can allow equipment to become more Mobile portable.On the other hand, of today
Electronic functionalities are more and more, and size is also more and more frivolous, and device interior space is less and less.Put in such narrow space
It is a very big challenge to enter increasing device.The development of multifunction device is the good method for solving this problem.Will not
The device of congenerous, which is integrated in a kind of structure, can save space and device cost.
According to investigations with understanding, disclosed prior art is as follows：
1) 2001, Chang-Gyun Kim et al. were in IEEE TRANSACTIONS ON INDUSTRIAL
Entitled " Design of a contactless battery charger for cellular are delivered on ELECTRONICS
In phone " article, author proposes a kind of wireless charger for mobile phone, and Main Analysis improves two coils in text
The method of the coefficient of coup.
2) 2013, Yuan Chun Li et al. were in IEEE TRANSACTIONS ON MICROWAVE THEORY AND
Entitled " Single-and Dual-Band Power Dividers Integrated With are delivered on TECHNIQUES
The bandpass filter of single-frequency and the active point of function of band of double frequency is proposed in Bandpass Filters " article.Wave filter
90 ° of phase shift, traditional quarter-wave impedance transformation line can be replaced as 70.7 Ω that it is matched.
3) 2015, Chao-Tang Chuang et al. were in IEEE TRANSACTIONS ON ANTENNAS AND
Entitled " Synthesis and Design of a New Printed Filtering are delivered on PROPAGATION
A kind of comprehensive designing method of filter antenna is proposed in Antenna " article.Author is by the parameter extraction of antenna current feed port
Out, comprehensive Design is then carried out together with wave filter.
The content of the invention
The invention aims to the defect for solving above-mentioned prior art, there is provided a kind of integrated wireless charging take-up
The device of circle and antenna function, the device architecture is reasonable, easy to use, can switch two kinds of wireless charging receiving coil and antenna
Working condition, so as to reduce the use of electronic device, provides more frees degree, while reducing device for the design of electronic equipment
The quantity of part, reduces production cost.
The purpose of the present invention can be reached by adopting the following technical scheme that：
The device of a kind of integrated wireless charging receiving coil and antenna function, including medium substrate, the first spiral winding, the
Metallic vias, first spiral winding and the second helix are provided with two spiral windings and switching circuit, the medium substrate
Circle is separately positioned on the top layer and bottom of medium substrate, and is connected by metallic vias；
The switching circuit is arranged on medium substrate, and provided with a switch chip, the centre of the switch chip is set
There are six pins, the left side is provided with two wireless charging signal pins, and the right is provided with six power supply/control signal pins；Switch core
In six pins in the middle of piece, a pin is connected with the first spiral winding and the second spiral winding respectively by the first microstrip line
Connect, two pins are connected with two pins in six power supplys/control signal pin respectively, a pin and two wireless chargings
Pin connection in signal pin a, pin connects RF/Microwave Integrated Circuits by the second microstrip line.
As a kind of preferred scheme, first spiral winding is made up of the first Inside coil and the first outer coil, institute
The second spiral winding is stated to be made up of the second Inside coil and the second outer coil.
As a kind of preferred scheme, each circle of first Inside coil all keeps close, the distance between each circle
It is close with the line width of the first spiral winding, the distance of first outer coil and the first Inside coil is more than the first helix
Wide ten times of astragal；Each circle of second Inside coil all keeps close, the distance between each circle and the second helix
The line width of circle is close, and the distance of second outer coil and the second Inside coil is more than the ten of the second spiral winding line width
Times.
As a kind of preferred scheme, the metallic vias is located at the center of the first Inside coil and the second Inside coil.
As a kind of preferred scheme, six pins in the middle of the switch chip are respectively the first pin, the second pin,
Three-prong, the 4th pin, the 5th pin and the 6th pin, first pin, the second pin and three-prong are located at the same side,
4th pin, the 5th pin and the 6th pin are located at the same side, and second pin is by the first microstrip line respectively with the
One spiral winding and the second spiral winding connection, first pin and three-prong respectively with six power supplys/control signal pipe
Two pins connection in pin, the 4th pin is connected with a pin in two wireless charging signal pins, and described the
Six pins connect RF/Microwave Integrated Circuits by the second microstrip line.
As a kind of preferred scheme, the switch chip is additionally provided with three ground pins, and three ground pins are respectively
One ground pin, the second ground pin and the 3rd ground pin, the first ground pin and the 3rd ground pin pass through electric capacity respectively
It is connected with the first pin, second ground pin is connected with the 5th pin.
Three ground vias, first ground pin, are also provided with as a kind of preferred scheme, on the medium substrate
Two ground pins and the 3rd ground pin are connected to ground by three ground vias.
As a kind of preferred scheme, first spiral winding and the second spiral winding are shaped as square or circle.
As a kind of preferred scheme, first microstrip line and the second microstrip line are 50 ohm microstrips.
As a kind of preferred scheme, the medium substrate is pcb board.
The present invention has following beneficial effect relative to prior art：
1st, the present invention designs spiral winding and switching circuit on one piece of medium substrate, and switching circuit can switch wireless charging
Electric two kinds of working conditions of receiving coil and antenna, it is provided with six pins provided with a switch chip, the centre of the switch chip,
The left side is provided with six pins in the middle of six power supply/control signal pins, chip provided with two wireless charging signal pins, the right
In, two pins are connected with two pins in six power supplys/control signal pin respectively, to switch on power and control signal；
One pin is connected as input pin by microstrip line with spiral winding, and a pin is wireless with two as output pin
Pin connection in charging signals pin, when it is connected, uses as wireless charging receiving coil, is mainly used in portable
Formula electronic equipment, such as mobile phone, wireless Bluetooth headsets, electric toothbrush；One pin passes through the second microstrip line as output pin
RF/Microwave Integrated Circuits are connected, when it is connected, is used as antenna, working frequency is 2.4GHz, bluetooth or WIFI etc. can be and set
Standby antenna.
2nd, the present invention is integrated in one structure by wireless charging receiving coil and antenna function, so as to reduce electronic device
Use, provide more frees degree for the design of electronic equipment, while reducing the quantity of device, reduce production cost,
Low-frequency ac device and frequency microwave device are merged, a kind of new thinking is provided for the design of electronic device.
Brief description of the drawings
Fig. 1 is the top level structure schematic diagram of medium substrate in device of the present invention.
Fig. 2 is the fabric schematic diagram of medium substrate in device of the present invention.
Fig. 3 is device of the present invention as during antenna | S11| parameters simulation and test result curve map.
Fig. 4 a are that device of the present invention is used as radiation diagram during antenna in 2.4G YOZ faces.
Fig. 4 b are that device of the present invention is used as radiation diagram during antenna in 2.4G XOZ faces.
The charging of charge efficiency and standard coil when Fig. 5 works for device of the present invention as wireless charging receiving coil is imitated
Rate contrast curve.
Wherein, 1- medium substrates, 2- metallic vias, the Inside coils of 3- first, the outer coils of 4- first, the inner wires of 5- second
Circle, the outer coils of 6- second, 7- wireless charging signal pins, 8- power supplys/control signal pin, the pins of 9- first, 10- second is managed
Pin, 11- three-prongs, the pins of 12- the 4th, the pins of 13- the 5th, the pins of 14- the 6th, the microstrip lines of 15- first, the micro-strips of 16- second
Line, the ground pins of 17- first, the ground pins of 18- second, the ground pins of 19- the 3rd.
Embodiment
With reference to embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited
In this.
Embodiment 1：
As depicted in figs. 1 and 2, the device of a kind of integrated wireless charging receiving coil and antenna function is present embodiments provided
Part, the device includes medium substrate 1, the first spiral winding, the second spiral winding and switching circuit, and the medium substrate 1 is used
A metallic vias 2 and three are provided with pcb board (Printed Circuit Board, printed circuit board), the medium substrate 1
Ground via (not shown).
First spiral winding and the second spiral winding are separately positioned on the top layer and bottom of medium substrate 1, and pass through
Metallic vias 2 is connected；Being shaped as first spiral winding and the second spiral winding is square, and first spiral winding is by
One Inside coil 3 and the first outer coil 4 are constituted, and second spiral winding is by the second Inside coil 5 and the second outer coil 6
Composition, each circle of the first Inside coil all keeps close, and the distance between each circle connects with the line width of the first spiral winding
Closely, the distance of the Inside coil 3 of the first outer coil 4 and first is more than ten times of the first spiral winding line width, inside second
Each circle of coil 5 all keeps close, and the line width of the distance between each circle and the second spiral winding is close, outside described second
The distance of the Inside coil 5 of layer line circle 6 and second is more than ten times of the second spiral winding line width, and metallic vias 2 is located inside first
The center of the Inside coil 5 of coil 3 and second.
The switching circuit is arranged on medium substrate 1, and provided with a switch chip, the centre of the switch chip is set
There are six pins, the left side is provided with two wireless charging signal pins 7, and the right is middle provided with six power supply/control signal pins 8
Six pins be respectively the first pin 9, the second pin 10, three-prong 11, the 4th pin 12, the 5th pin 13 and the 6th pipe
Pin 14, first pin 9, the second pin 10 and three-prong 11 are located at the same side (being seen from figure positioned at upside), and from a left side
It is arranged in order to the right side, the 4th pin 12, the 5th pin 13 and the 6th pin 14 (are seen under being located at positioned at the same side from figure
Side), and be from left to right arranged in order；Second pin 10 by the first microstrip line 15 respectively with the first spiral winding and second
Spiral winding is connected, and the first microstrip line 15 uses 50 ohm microstrips, and it is used as the input port for connecting coil；First pipe
Pin 9 and three-prong 11 are connected with two pins in six power supplys/control signal pin 8 respectively, six power supply/control signals
Pin 8 is used as the input port for connecting power supply/control circuit；In 4th pin 12 and two wireless charging signal pins 7
A pin connection, two wireless charging signal pins 7 as connect wireless charging circuit output port；6th pipe
Pin 14 connects RF/Microwave Integrated Circuits by the second microstrip line 16, and the second microstrip line 16 uses 50 ohm microstrips, and it is used as connection
The output port of RF/Microwave Integrated Circuits；Switch chip is additionally provided with three ground pins, and three ground pins are respectively the first ground connection
Pin 17, the second ground pin 18 and the 3rd ground pin 19, the first ground pin 17 and the 3rd ground pin 19 pass through respectively
Electric capacity is connected with the first pin 9, and second ground pin 18 is connected with the 5th pin 13, and the first ground pin 17, second connect
The ground pin 19 of ground pin 18 and the 3rd is connected to ground by three ground vias.
The operation principle of the present embodiment is：After power supply/control circuit is connected：With the height of the three-prong 11 of switch chip
Level carrys out control coil and connected with which, low level control coil (the first spiral winding and the second spiral winding), first micro-
This is connected all the way for band line 15, the second pin 10, the 6th pin 14, the second microstrip line 16, high level control coil, the first microstrip line
15th, the second pin 10 and a pin in two wireless charging signal pins 7 this connect all the way；When coil, the first microstrip line
15th, the second pin 10, the 6th pin 14, the second microstrip line 16 this when connecting all the way, device is used as antenna, and working frequency is
2.4GHz, can do the antenna of the equipment such as bluetooth or WIFI, the input port return loss of antenna | S11| as shown in figure 3,
2.3GHz-2.5GHz frequency range in, | S11| value be both less than -10dB, radiation diagram such as Fig. 4 a of the antenna in 2.4G YOZ faces
It is shown, 2.4G XOZ faces radiation diagram as shown in Figure 4 b；When coil, the first microstrip line 15, the second pin 10 and two are wireless
A pin in charging signals pin 7 this when connecting all the way, device is used as wireless charging receiving coil, is mainly used in
Portable electric appts, such as mobile phone, wireless Bluetooth headsets, electric toothbrush, as shown in figure 5, compared with standard coil, although
In the case of exporting same current, charge efficiency decreases, but can complete the function of charging substantially.
Embodiment 2：
The present embodiment is mainly characterized by：First spiral winding and the second spiral winding are shaped as circle.Remaining
Be the same as Example 1.
In summary, the present invention designs spiral winding and switching circuit on one piece of medium substrate, and switching circuit can be cut
Two kinds of working conditions of wireless charging receiving coil and antenna are changed, it is provided with a switch chip, and the centre of the switch chip is provided with
Six pins, the left side is provided with the middle of six power supply/control signal pins, chip provided with two wireless charging signal pins, the right
Six pins in, two pins are connected with two pins in six power supplys/control signal pin respectively, to switch on power and
Control signal；One pin is connected as input pin by microstrip line with spiral winding, a pin as output pin,
It is connected, when it is connected, is used as wireless charging receiving coil, mainly with a pin in two wireless charging signal pins
Applied to portable electric appts, such as mobile phone, wireless Bluetooth headsets, electric toothbrush；One pin passes through as output pin
Second microstrip line connects RF/Microwave Integrated Circuits, when it is connected, is used as antenna, working frequency is 2.4GHz, can do bluetooth
Or the antenna of the equipment such as WIFI.
It is described above, it is only patent preferred embodiment of the present invention, but the protection domain of patent of the present invention is not limited to
This, any one skilled in the art is in the scope disclosed in patent of the present invention, according to the skill of patent of the present invention
Art scheme and its inventive concept are subject to equivalent substitution or change, belong to the protection domain of patent of the present invention.
Claims (10)
1. the device of a kind of integrated wireless charging receiving coil and antenna function, it is characterised in that：Including medium substrate, the first spiral shell
Metallic vias, first spiral winding and are provided with spin line circle, the second spiral winding and switching circuit, the medium substrate
Two spiral windings are separately positioned on the top layer and bottom of medium substrate, and are connected by metallic vias；
The switching circuit is arranged on medium substrate, and provided with a switch chip, the centre of the switch chip is provided with six
Individual pin, the left side is provided with two wireless charging signal pins, and the right is provided with six power supply/control signal pins；In switch chip
Between six pins in, a pin is connected with the first spiral winding and the second spiral winding respectively by the first microstrip line, two
Individual pin is connected with two pins in six power supplys/control signal pin respectively, a pin and two wireless charging signals
Pin connection in pin a, pin connects RF/Microwave Integrated Circuits by the second microstrip line.
2. the device of a kind of integrated wireless charging receiving coil according to claim 1 and antenna function, it is characterised in that：
First spiral winding is made up of the first Inside coil and the first outer coil, and second spiral winding is by the second inner wire
Circle and the second outer coil composition.
3. the device of a kind of integrated wireless charging receiving coil according to claim 2 and antenna function, it is characterised in that：
Each circle of first Inside coil all keeps close, and the distance between each circle connects with the line width of the first spiral winding
Closely, ten times of the distance of first outer coil and the first Inside coil more than the first spiral winding line width；In described second
Each circle of portion's coil all keeps close, and the line width of the distance between each circle and the second spiral winding is close, and described second
The distance of outer coil and the second Inside coil is more than ten times of the second spiral winding line width.
4. the device of a kind of integrated wireless charging receiving coil and antenna function according to Claims 2 or 3, its feature exists
In：The metallic vias is located at the center of the first Inside coil and the second Inside coil.
5. the device of a kind of integrated wireless charging receiving coil according to claim 1 and antenna function, it is characterised in that：
Six pins in the middle of the switch chip are respectively the first pin, the second pin, three-prong, the 4th pin, the 5th pin
With the 6th pin, first pin, the second pin and three-prong be located at the same side, the 4th pin, the 5th pin and
6th pin be located at the same side, second pin by the first microstrip line respectively with the first spiral winding and the second spiral winding
Connection, first pin and three-prong be connected with two pins in six power supplys/control signal pin respectively, and described the
Four pins are connected with a pin in two wireless charging signal pins, and the 6th pin is penetrated by the connection of the second microstrip line
Frequently/microwave circuit.
6. the device of a kind of integrated wireless charging receiving coil according to claim 5 and antenna function, it is characterised in that：
The switch chip is additionally provided with three ground pins, three ground pins be respectively the first ground pin, the second ground pin and
3rd ground pin, the first ground pin and the 3rd ground pin are connected by electric capacity with the first pin respectively, and described second connects
Ground pin is connected with the 5th pin.
7. the device of a kind of integrated wireless charging receiving coil according to claim 6 and antenna function, it is characterised in that：
Three ground vias, first ground pin, the second ground pin and the 3rd ground pin are also provided with the medium substrate
Ground is connected to by three ground vias.
8. the device of a kind of integrated wireless charging receiving coil and antenna function according to any one of claim 1-3,5-7
Part, it is characterised in that：First spiral winding and the second spiral winding are shaped as square or circle.
9. the device of a kind of integrated wireless charging receiving coil and antenna function according to any one of claim 1-3,5-7
Part, it is characterised in that：First microstrip line and the second microstrip line are 50 ohm microstrips.
10. the device of a kind of integrated wireless charging receiving coil and antenna function according to any one of claim 1-3,5-7
Part, it is characterised in that：The medium substrate is pcb board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710119158.4A CN106992606B (en) | 2017-03-02 | 2017-03-02 | Device integrating wireless charging receiving coil and antenna functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710119158.4A CN106992606B (en) | 2017-03-02 | 2017-03-02 | Device integrating wireless charging receiving coil and antenna functions |
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| Publication Number | Publication Date |
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| CN106992606A true CN106992606A (en) | 2017-07-28 |
| CN106992606B CN106992606B (en) | 2023-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710119158.4A Active CN106992606B (en) | 2017-03-02 | 2017-03-02 | Device integrating wireless charging receiving coil and antenna functions |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202797268U (en) * | 2012-06-28 | 2013-03-13 | 比亚迪股份有限公司 | NFC antenna and electronic equipment |
| CN103515698A (en) * | 2012-06-28 | 2014-01-15 | 比亚迪股份有限公司 | NFC (Near Field Communication) antenna and electronic equipment |
| CN205029402U (en) * | 2015-10-23 | 2016-02-10 | 刘南平 | Wireless charging system of microwave based on array antenna |
| CN206564491U (en) * | 2017-03-02 | 2017-10-17 | 华南理工大学 | A kind of device of integrated wireless charging receiving coil and antenna function |
-
2017
- 2017-03-02 CN CN201710119158.4A patent/CN106992606B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202797268U (en) * | 2012-06-28 | 2013-03-13 | 比亚迪股份有限公司 | NFC antenna and electronic equipment |
| CN103515698A (en) * | 2012-06-28 | 2014-01-15 | 比亚迪股份有限公司 | NFC (Near Field Communication) antenna and electronic equipment |
| CN205029402U (en) * | 2015-10-23 | 2016-02-10 | 刘南平 | Wireless charging system of microwave based on array antenna |
| CN206564491U (en) * | 2017-03-02 | 2017-10-17 | 华南理工大学 | A kind of device of integrated wireless charging receiving coil and antenna function |
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| Publication number | Publication date |
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| CN106992606B (en) | 2023-05-23 |
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