CN107068372A - The position adjustments coil of wireless charging receiver - Google Patents
The position adjustments coil of wireless charging receiver Download PDFInfo
- Publication number
- CN107068372A CN107068372A CN201710449979.4A CN201710449979A CN107068372A CN 107068372 A CN107068372 A CN 107068372A CN 201710449979 A CN201710449979 A CN 201710449979A CN 107068372 A CN107068372 A CN 107068372A
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- position adjustments
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- 238000004804 winding Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 description 10
- 238000001514 detection method Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
-
- H02J5/005—
-
- H02J7/025—
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
- H01F2038/143—Inductive couplings for signals
Abstract
The position adjustments of the wireless charging receiver of the present invention possess with coil：First coil group, including：Positioned at the first coil of first layer；Positioned at the second coil of first layer；And positioned at the second layer and the first connecting line of the connection first coil and the second coil；With the second coil group, including：Positioned at the tertiary coil of the second layer；Positioned at the 4th coil of the second layer；And positioned at first layer and the second connecting line of the connection tertiary coil and the 4th coil, the winding direction of the first coil and the second coil is on the contrary, the winding direction of the tertiary coil and the 4th coil is opposite.
Description
Technical field
The present invention relates to the position adjustments coil of wireless charging receiver.
Background technology
In recent years, the portable set such as smart mobile phone, intelligent watch all started to support what is wirelessly charged
Function.Realize that the mode of this wireless charging is a lot, wherein using it is most be by way of inductive charges.Based on electricity
The charging of sense coupling is using the coupling between two coils disconnected from each other, the line with the coil of transmission electric power with receiving electric power
The relative position of circle, the difference of distance, the efficiency of power transmission also can be different.
In the system wirelessly charged, by transmit electric power equipment be set to transmitter, will be such as intelligent hand
When the equipment that machine receives electric power like that is set to receiver, when emplacing receiver is charged on transmitter, if receiver is certainly
Body is capable of deciding whether to be placed on correct charge position and can calculate efficiency, or, receiver, which can be guided, to be made
User is moved to correct charge position, it is possible to improve power transmission efficiency, so as to improve charge efficiency.
Power transmission efficiency highest point is origin using in transmitter device, if can be derived that distance away from this origin or
Two-dimensional coordinate system of the person using it as origin, user can just adjust position of the receiver relative to transmitter, be filled so as to improve
Electrical efficiency.In order to obtain on the two-dimensional coordinate system of the placement location for adjusting receiver, receiver except receiving charging power
Coil beyond, it is necessary to multiple coils are separately set, coordinate system is constructed using the signal produced based on these coils.
The content of the invention
The present invention is completed in view of the foregoing, and its object is to provide that wireless charging receiver can be adjusted relative to electricity
The placement location of power transmitter is to improve the position adjustments coil of the wireless charging receiver of charge efficiency.
The position adjustments coil of the wireless charging receiver of the mode of the present invention is characterised by possessing：First Line
Circle group, including：Positioned at the first coil of first layer；Positioned at the second coil of first layer；And positioned at described in the second layer and connection
First connecting line of first coil and the second coil；With the second coil group, including：Positioned at the tertiary coil of the second layer；Positioned at
Two layers of the 4th coil；And positioned at first layer and the second connecting line of the connection tertiary coil and the 4th coil, described the
The winding direction of one coil and the second coil is on the contrary, the winding direction of the tertiary coil and the 4th coil is opposite.
Preferably, one end of the first coil group is grounded, and the other end is signal output part, the second coil group
One end is grounded, and the other end is signal output part.
Preferably, in the first layer, second connecting line not with the first coil and the second coil contact, in institute
State the second layer, first connecting line not with the tertiary coil and the 4th coil contact.
The position adjustments coil of the wireless charging receiver of the another way of the present invention is characterised by possessing：First
Coil group, including：First coil and the second coil positioned at the two ends of a pair of linea angulatas of first layer；And positioned at the second layer and company
Connect the first connecting line of the first coil and the second coil；Second coil group, including：Positioned at the another cornerwise of first layer
The tertiary coil at two ends and the 4th coil；And positioned at the second connection of the second layer and the connection tertiary coil and the 4th coil
The winding direction of line, the first coil and the second coil is on the contrary, the winding direction of the tertiary coil and the 4th coil is opposite.
Preferably, one end of the first coil group is grounded, and the other end is signal output part, the second coil group
One end is grounded, and the other end is signal output part.
Preferably, in the first layer, the first coil to the 4th coil is not in contact with each other, in the second layer, described
First connecting line is not connected linear contact lay with described second.
According to the present invention, wireless charging receiver can be known whether to be put by the position adjustments coil itself installed
It is placed on position corresponding with power transmission efficiency highest point in the transmitter for transmitting electric power, and can be by the line on two layers
Circular pattern, only the signal progress analysis to two output nodes can construct the placement location for adjusting wireless charging receiver
Coordinate system.
Brief description of the drawings
Fig. 1 is the top view for the position adjustments coil for representing embodiments of the present invention 1.
Fig. 2 is the decomposing schematic representation of first coil group in separately shown Fig. 1 and the second coil group, and (a) represents First Line
Circle group, (b) represents the second coil group.
Fig. 3 is the schematic diagram for illustrating the position adjustments principle of Fig. 1 position adjustments coil.
Fig. 4 is to represent signal that position adjustments export with coil with the distance between power transmitter and power receiver
The figure changed, (a) represents the relation of amplitude and distance, and (b) represents the relation of phase and distance.
Fig. 5 is the top view for the position adjustments coil for representing embodiments of the present invention 2.
Embodiment
In the following description, specific structure and explanation are used for the purpose of being easier to understand the explanation of the present invention and progress,
The present invention can be implemented in a variety of ways, however it is not limited to the mode that this specification is recorded.In addition, in the technology without departing from the present invention
In the range of thought, various changes, improvement etc. can be implemented to the present invention, these changes, improvement are all contained in the protection of the present invention
In the range of.
In addition, the term such as " first ", " second " for using in the following description can be explained specific inscape, but this
A little terms do not limit these inscapes.These terms are only used for distinguishing each inscape.In addition, " on ", " under " etc. represents
The term in orientation is only used for representing relative position relation.
Hereinafter, it is explained with reference to the embodiment of the present invention.
Embodiment 1
Fig. 1 is the top view for the position adjustments coil 100 for representing embodiments of the present invention 1, and Fig. 2 is separately shown figure
The decomposing schematic representation of the coil group 20 of first coil group 10 and second in 1, (a) represents first coil group 10, and (b) represents the second line
Circle group 20.Here, position adjustments coil 100 is installed on wireless charging receiver.
As shown in Figure 1 and Figure 2, position adjustments coil 100 includes：First coil group 10, including positioned at the coil of first layer
11st, 12 and the first connecting line 13 positioned at the second layer；With the second coil group 20, including positioned at the coil 21,22 of the second layer and position
In the second connecting line 23 of first layer.In this, it is assumed that first coil group 10 is used for the Y-axis for constructing two-dimensional coordinate system, the second coil
Group 20 is used for the X-axis for constructing two-dimensional coordinate system.In Fig. 1, each several part indicated by the solid line positioned at first layer, is represented by dashed line position
In each several part of the second layer, and in order to recognize first layer and the second layer in a top view, somewhat staggered first coil
Group 10 and the second coil group 20, but can be with completely overlapped both when actually overlooking.Although in addition, the first connecting line 13 is located at the
Two layers, do not contacted with the coil 21,22 of the second layer, similarly, although the second connecting line 23 is located at first layer, but not with first
The coil 11,12 of layer is contacted.
As shown in Fig. 2 in first coil group 10, coil 11 and 12 is located at first layer, and connects the company of coil 11 and 12
Wiring 13 is located at the second layer, and coil 11 with 12 winding direction on the contrary, and one end of coil 11 be grounded, the other end and line
Circle 12 is connected, and the other end not being connected with coil 11 of coil 12 is signal output part AY.Similarly, as shown in Fig. 2 coil 21
With 22 be located at the second layer, and connect coil 21 and 22 connecting line 23 be located at first layer, and coil 21 with 22 winding direction phase
Instead, and one end of coil 21 is grounded, the other end is connected with coil 22, and the other end not being connected with coil 21 of coil 22 is
Signal output part AX.
Hereinafter, illustrated exemplified by the first coil group 10 for constructing the Y-axis of two-dimensional coordinate system.In first coil group
In 10, coil pattern is located at first layer, two inductance opposite equivalent to winding direction is formed.Two inductance meetings being connected in series
The coil of transmitter with transmitting electric power produces inductive, with position of the coil relative to position adjustments coil of transmitter
The difference put, the signal produced by inductive also can be different.
Fig. 3 is the schematic diagram for illustrating Fig. 1 position adjustments with the position adjustments principle of coil 100.TX represents transmission
The transmitter of electric power, RX represents wireless charging receiver, and the position adjustments of the present invention are mounted with wireless charging receiver RX
With coil 100, Fig. 3 is exemplified with the position relationship between first coil group 10 and transmitter TX coil.With TX and RX phase
To the difference of position (position along the vertical direction in Fig. 3), the amplitude and phase of the signal observed in signal output part AY sides
Position can be different.
In figure 3, if transmitter TX coil (connects relative to first coil group 10 positioned at centre equivalent to wireless charging
Receive device and be located at the position corresponding with the power transmission efficiency highest point of transmitter), then transmitter TX coil and the coupling of coil 11
Close the electric current produced size be equal to transmitter TX coil coupled with coil 12 generation electric current size, and the two electric currents
Phase differ 180 °, therefore, the amplitude observed in signal output part AY sides is 0.That is, transmitter TX coil is relative to
It is optimal state that one coil group 10, which is located at centre,.
If top (i.e. AY side) of the transmitter TX coil relative to first coil group 10 on paper, transmitter
TX coil coupled with coil 11 produce electric current will be more than transmitter TX coil coupled with coil 12 generation electric current, with
Preferable situation is compared the amplitude observed in signal output part AY sides and become larger, and is observed in signal output part AY sides
Signal phase it is identical with the phase of the electric current based on coil 11.
On the contrary, lower section (i.e. ground side) of the transmitter TX coil relative to first coil group 10 on paper, then
Transmitter TX coil coupled with coil 11 produce electric current will be less than transmitter TX coil coupled with coil 12 generation
Electric current, the amplitude observed compared with preferable situation in signal output part AY sides becomes larger, and in signal output part AY
The phase for the signal that side is observed is identical with the phase of the electric current based on coil 12.That is, now in signal output part AY
The phase for the signal that side is observed differs 180 ° compared with closer to AY sides.
Using transmitter TX coil relative to first coil group 10 be located at centre situation as origin, by transmitter TX's
Coil relative to first coil group 10 closer to the phase that AY sides ShiAY sides are observed be set to 0 when, transmitter TX coil spacing
Shown in relation such as Fig. 4 (a) and Fig. 4 (b) of the amplitude and phase of the distance of origin and the signal observed in AY sides.It is former in Fig. 4
Point expression transmitter TX coil is located at centre relative to first coil group 10, will be set to X from origin towards the direction of AY sides
The positive direction of axle, the direction from origin towards ground side is set to the negative direction of X-axis, Y-axis represents defeated in signal in Fig. 4 (a)
Go out to hold the amplitude for the induced signal that AY sides observe, Y-axis represents the sensing observed in signal output part AY sides in Fig. 4 (b)
The relative phase of signal.
With reference to the amplitude and relative phase in Fig. 4 (a) and Fig. 4 (b) and the relation between, result in distance into
The signal of ratio.Here, so-called distance is to represent transmitter TX from origin (i.e. optimal state) towards signal output part AY
The degree that side or ground side deviate.
Analyze, as origin, can be connect using power transmission efficiency highest point in transmitter TX using wireless charging more than
The position adjustments coil 100 on device RX is received, the situation to receiver RX deviation from origin constructs the Y-axis of two-dimensional coordinate system.Construct
The principle of the X-axis of two-dimensional coordinate system is identical with the principle for constructing Y, in this detailed description will be omitted.Utilize constructed two-dimensional coordinate
System, user can adjust placement location of the receiver relative to transmitter.
According to the position adjustments coil 100 of the present invention, it can realize that wireless charging connects by two layers of coil pattern structure
The position adjustment function of device is received, so as to improve wireless charging efficiency.Each layer of coil pattern constructs one of coordinate system
Axle.Due to one layer of coil pattern for only existing an axle for constructing coordinate system, therefore, it is possible to the coil turn that maximizes.In addition, only
Two-dimensional coordinate system is just resulted in by two signal output part (node) AY and AX.
Embodiment 2
The present invention is not limited to the structure shown in Fig. 1, can also constitute structure as shown in Figure 5.Fig. 5 is to represent the present invention
Another location regulation coil top view.
As shown in figure 5, position adjustments coil 200 includes：First coil group 110, including positioned at the pair of horns of first layer
The coil 111,112 at the two ends of line and positioned at the second layer and connect coil 111 and 112 the first connecting line 213；With the second coil
Group 120, including coil 121,122 positioned at another cornerwise two ends of first layer and positioned at the second layer and connection coil 121 with
122 the second connecting line 223.In Figure 5, the indicated by the solid line coil 111,112,121,122 for being located at first layer, uses dotted line
Illustrate the connecting line 213 and 223 positioned at the second layer.Although the first connecting line 213 and the second connecting line 223 are located at same layer,
But mutually not in contact with.Similarly, each coil positioned at first layer is not also contacted mutually.
As shown in figure 5, each coil of the coil group 120 of first coil group 110 and second is all located at same layer, positioned at a pair
Two coil winding directions at linea angulata two ends on the contrary, i.e. coil 111 and coil 112 winding direction on the contrary, simultaneously coil 121 with
The winding direction of coil 122 is also opposite.In addition, two coils positioned at same diagonal two ends pass through the connection positioned at the second layer
Line is connected, and one is grounded in not connected remaining two ports, one as signal output part (that is, AY ' and
AX′)。
The principle for constructing two-dimensional coordinate system by the position adjustments coil 200 of present embodiment is identical with embodiment 1,
Therefore detailed description will be omitted.But, compared with embodiment 1, the two-dimensional coordinate that the coil pattern based on present embodiment is constructed
System is the X ' axles and Y ' axles that 45° angle degree has been deflected centered on origin.
The embodiments of the present invention are explained above, as needed, as long as in two signals of position adjustments coil
Output terminals A X (or AX ') and AY (or AY ') rear class connection detection circuit, it is possible to notify that wireless charging receiver is to user
The power transmission efficiency highest point of the no transmitter that deviate from transmission electric power, user can connect according to content of announcement to wireless charging
Receive device to be adjusted relative to the placement location of transmitter, so that charge efficiency reaches maximum.Here, detection circuit can basis
Unrestricted choice the need for user, the present invention does not limit the concrete structure of detection circuit.In addition, according to the structure of the present invention,
The connecting line to be respectively configured at two layers between coil and coil, as long as and two signal output parts of detection (AX ' and AY ')
Signal can construct two-dimensional coordinate system.
The embodiments of the present invention have been described in detail above, but the present invention is not limited to each embodiment of the above,
Change, improvement carried out in the range of the technological thought of the present invention etc. is within protection scope of the present invention.
Claims (6)
1. a kind of position adjustments coil of wireless charging receiver, it is characterised in that possess：
First coil group, including：Positioned at the first coil of first layer；Positioned at the second coil of first layer；And positioned at the second layer
And the first connecting line of the connection first coil and the second coil；With
Second coil group, including：Positioned at the tertiary coil of the second layer；Positioned at the 4th coil of the second layer；And positioned at first layer
And the second connecting line of the connection tertiary coil and the 4th coil,
The winding direction of the first coil and the second coil on the contrary,
The winding direction of the tertiary coil and the 4th coil is opposite.
2. the position adjustments coil of wireless charging receiver according to claim 1, it is characterised in that
One end of the first coil group is grounded, and the other end is signal output part,
One end of the second coil group is grounded, and the other end is signal output part.
3. the position adjustments coil of wireless charging receiver according to claim 1 or 2, it is characterised in that
In the first layer, second connecting line not with the first coil and the second coil contact,
In the second layer, first connecting line not with the tertiary coil and the 4th coil contact.
4. a kind of position adjustments coil of wireless charging receiver, it is characterised in that possess：
First coil group, including：First coil and the second coil positioned at the two ends of a pair of linea angulatas of first layer；And positioned at
Two layers and the first connecting line of the connection first coil and the second coil；
Second coil group, including：Tertiary coil and the 4th coil positioned at another cornerwise two ends of first layer；And be located at
Second connecting line of the second layer and the connection tertiary coil and the 4th coil,
The winding direction of the first coil and the second coil on the contrary,
The winding direction of the tertiary coil and the 4th coil is opposite.
5. the position adjustments coil of wireless charging receiver according to claim 4, it is characterised in that
One end of the first coil group is grounded, and the other end is signal output part,
One end of the second coil group is grounded, and the other end is signal output part.
6. the position adjustments coil of the wireless charging receiver according to claim 4 or 5, it is characterised in that
In the first layer, the first coil to the 4th coil is not in contact with each other,
In the second layer, first connecting line is not connected linear contact lay with described second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710449979.4A CN107068372B (en) | 2017-06-14 | 2017-06-14 | The position of wireless charging receiver adjusts and uses coil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710449979.4A CN107068372B (en) | 2017-06-14 | 2017-06-14 | The position of wireless charging receiver adjusts and uses coil |
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| CN107068372A true CN107068372A (en) | 2017-08-18 |
| CN107068372B CN107068372B (en) | 2019-04-05 |
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| CN201710449979.4A Active CN107068372B (en) | 2017-06-14 | 2017-06-14 | The position of wireless charging receiver adjusts and uses coil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107623364A (en) * | 2017-09-27 | 2018-01-23 | 哈尔滨工业大学 | Two-way space magnetic field ecad electric energy receiving terminal applied to electric automobile wireless charging |
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| CN206877820U (en) * | 2017-06-14 | 2018-01-12 | 江西联智集成电路有限公司 | The position adjustments coil of wireless charging receiver |
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| CN107068372B (en) | 2019-04-05 |
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