CN206991926U - Circuit arrangement and electrical power transmission system - Google Patents
Circuit arrangement and electrical power transmission system Download PDFInfo
- Publication number
- CN206991926U CN206991926U CN201690000387.3U CN201690000387U CN206991926U CN 206991926 U CN206991926 U CN 206991926U CN 201690000387 U CN201690000387 U CN 201690000387U CN 206991926 U CN206991926 U CN 206991926U
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- Prior art keywords
- circuit arrangement
- circuit
- coil
- magnetic
- winding
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Classifications
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- 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
- H01F27/363—Electric or magnetic shields or screens made of electrically conductive material
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- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
Abstract
Circuit arrangement (1) possesses circuit substrate (10), has the coil portion (11) and magnetic shield (12) of winding coil (11B).Coil portion (11) makes the wireline reel of winding coil (11B) be installed in the interareas of circuit substrate (10) relative to the main surface parallel of circuit substrate (10).Magnetic shield (12) surrounds circuit substrate (10) and winding coil (11B) at least along the coiling direction of winding coil (11B).Thus, there is provided reduce leakage magnetic field and suppress the circuit arrangement and electrical power transmission system of the influence to the equipment of surrounding.
Description
Technical field
It the utility model is related to the circuit arrangement with winding coil and possess its electrical power transmission system.
Background technology
Power transmission is carried out from electric supply installation to current-collecting device by field coupling mode patent document 1 discloses a kind of
Electrical power transmission system.In the electrical power transmission system, transmitted after electric supply installation is by boost in voltage to current-collecting device, by Denso
The voltage step-down that will be transmitted is put, and is supplied to load.Further, in the electrical power transmission system, in order to efficiently carry out electric power
Transmission, electric supply installation and current-collecting device form inductor respectively and capacitor is formed, resonant frequency identical resonance electricity
Road.
Citation
Patent document
Patent document 1：International Publication No. 2014/103438
Utility model content
- the utility model problem to be solved-
In patent document 1, employ in the case of the transformer or coil of set constructor, it is possible to from stray transformer flux
, influence that the electronic equipments such as the wireless device of surrounding can be fed through to.As a result, it is possible to each equipment of electric supply installation or current-collecting device
Malfunction reduces from electric supply installation to the efficiency of the power transmission of current-collecting device.
Thus, the purpose of this utility model is, there is provided reduces leakage magnetic field and suppresses the influence to the equipment of surrounding
Circuit arrangement and electrical power transmission system.
- the means to solve the problem-
The circuit arrangement that the utility model is related to, it is characterised in that possess：Circuit substrate；Make wireline reel and the circuit
It is installed in the winding coil of the interarea of the circuit substrate main surface parallel of substrate；With at least along the winding coil
The magnetic screen conductor that coiling direction surrounds the circuit substrate and the winding coil.
In this composition, due to the leakage in the magnetic field from winding coil can be reduced using magnetic screen conductor, therefore it can suppress
The magnetic field leaked out influences to caused by the electronic equipments such as the wireless device of surrounding.Further, because magnetic screen conductor also will installation
The circuit substrate of winding coil is surrounded, thus size or configuration place will not because of winding coil and the connecting portion of circuit substrate and
Limited.Therefore, can integrally be covered winding coil with magnetic screen conductor, the magnetic field from winding coil can be efficiently reduced
Leakage.
In the circuit arrangement that the utility model is related to, preferably described magnetic screen conductor is tubular, the magnetic screen of tubular
The opening of conductor and the winding direction of principal axis of the winding coil intersect.
In this composition, only by the way that circuit substrate and winding coil to be inserted to the magnetic screen conductor of tubular, it can just reduce and
Leakage from the magnetic field of winding coil.
In the circuit arrangement that the utility model is related to, the length of preferably described magnetic screen conductor is the normal side of the opening
To length for the winding coil the winding direction of principal axis length more than.
In this composition, because magnetic screen conductor integrally surrounds winding coil, therefore can further it reduce from winding coil
Magnetic field leakage.
In the circuit arrangement that the utility model is related to, preferably described winding coil is wound in magnetic, the magnetic screen
Below length of the length of the normal direction of conductor for the winding direction of principal axis of the magnetic.
In this composition, as long as because magnetic screen conductor at least surrounds winding coil entirety, therefore by the way that magnetic screen is led
Body is increased to more than necessary, so as to prevent circuit arrangement from maximizing.
The circuit arrangement that the utility model is related to, is preferably provided with 2 winding coils, and 2 winding coils are formed
Using a side as primary coil, the opposing party as secondary coil winding transformer.
In this composition, even if in the case where being used as winding transformer, the magnetic field from winding coil can be also reduced
Leakage, therefore the magnetic field that can suppress to leak out influences to caused by the electronic equipments such as the wireless device of surrounding.
The circuit arrangement that the utility model is related to, it is preferably provided with the circuit substrate, the winding coil and the magnetic
The electrostatic screen conductor that shielded conductor surrounds.
In this composition, the influence of the static noise from outside can be reduced.
In the circuit arrangement that the utility model is related to, the conductor thickness of preferably described electrostatic screen conductor is than the magnetic screen
The conductor thickness of conductor is thin.
In this composition, by by the conductor thickness skiving of electrostatic screen conductor, so as to seek the light weight of circuit arrangement
Change.
The circuit arrangement that the utility model is related to, it is preferably provided with being set exhausted along the inwall of the magnetic screen conductor
Edge.
In this composition, by setting insulation division, so as to can ensure that the exhausted of magnetic screen conductor and winding coil and circuit substrate
Edge.
In the circuit arrangement that the utility model is related to, the insulation division preferably has to be engaged with the end of the circuit substrate
Holding section.
In this composition, contraposition of the magnetic screen conductor relative to winding coil and circuit substrate can be easily carried out.
In the circuit arrangement that the utility model is related to, preferably described insulation division, which has, to be protruded inwardly and determines from the inwall
On the fixed in-plane intersected with the winding direction of principal axis of the winding coil the, circuit substrate and the winding coil are matched somebody with somebody
The multiple protruding portion of seated position.
In this composition, contraposition of the magnetic screen conductor relative to winding coil and circuit substrate can be easily carried out.
Electrical power transmission system of the present utility model, possesses：Electric supply installation, the boosting with the boost in voltage that will be inputted become
The supply side coupling part of depressor and the voltage being applied in after being boosted by the step-up transformer；And current-collecting device, have by electricity
Side coupling part, the voltage step-down for being induced the power side coupling part step-down transformer and will be by the downconverter
To the load output circuit of load output, the supply side coupling part and the power side coupling part are carried out voltage after device decompression
Field coupling, thus from the electric supply installation to the current-collecting device transmit electric power, it is characterised in that the step-up transformer and
At least one party of the step-down transformer includes the circuit arrangement that the utility model is related to.
In this composition, due to that can reduce the leakage in the magnetic field from winding coil, therefore the magnetic field that can make to leak out will not be right
The electronic equipments such as the wireless device around electric supply installation or current-collecting device are configured to impact.
- utility model effect-
According to the utility model, the magnetic field that can suppress to leak out is on influence caused by electronic unit of surrounding etc..Further, energy
Enough magnetic screen conductors integrally cover winding coil, can efficiently reduce the leakage in the magnetic field from winding coil.
Brief description of the drawings
Fig. 1 is the sectional view for the circuit arrangement that embodiment 1 is related to.
Fig. 2 is the stereogram for the circuit arrangement that embodiment 1 is related to.
Fig. 3 is the figure of the relation of the attenuation of the length and stray field that represent magnetic shield.
Fig. 4 be represent to possess it is rectangular-shaped beyond shape circuit substrate circuit arrangement example figure.
Fig. 5 be represent to possess it is rectangular-shaped beyond shape circuit substrate circuit arrangement example figure.
Fig. 6 is the top view for the circuit arrangement that coil portion is set to winding transformer.
Fig. 7 is the stereogram for the circuit arrangement that embodiment 2 is related to.
Fig. 8 is the front view for the circuit arrangement seen from X-direction.
Fig. 9 is the stereogram of insulator.
Figure 10 (A) and Figure 10 (B) is the figure for the other examples for representing insulator.
Figure 11 is the stereogram for the circuit arrangement that embodiment 3 is related to.
Figure 12 is the front view for the circuit arrangement seen from X-direction.
Figure 13 is the stereogram of insulator.
Figure 14 is the figure for the other examples for representing insulator.
Figure 15 is the figure for representing the circuit arrangement that embodiment 4 is related to.
Figure 16 is the circuit diagram for the electrical power transmission system that embodiment 5 is related to.
Embodiment
(embodiment 1)
Fig. 1 is the sectional view for the circuit arrangement 1 that embodiment 1 is related to.Fig. 2 is the circuit arrangement 1 that embodiment 1 is related to
Stereogram.Fig. 1 is equivalent to the section in the I-I lines shown in Fig. 2.
Circuit arrangement 1 possesses circuit substrate 10, coil portion 11, magnetic shield 12 and insulator 13.Wherein, in Fig. 1, with
Section indication circuit substrate 10, magnetic shield 12 and insulator 13.
Circuit substrate 10 has the rectangular-shaped interarea that longer side and a shorter side is formed.Hereinafter, by along circuit substrate 10
The direction of long side is set to X-direction, will be set to Y-direction along the direction of short side, the thickness direction of circuit substrate 10 is set into Z side
To.The multiple element (not shown) including coil portion 11 is installed in side's interarea of circuit substrate 10.
Coil portion 11 has magnetic core body 11A, winding coil 11B and connection conductor 11C.Winding coil 11B is wound in
Insulating properties or the magnetic core body 11A applied by insulation.Coil portion 11 is installed in circuit substrate by connecting conductor 11C
10.Winding coil 11B by connect after conductor 11C with the conducting (not shown) of the wiring pattern of circuit substrate 10.Coil portion 11 is pacified
Loaded on circuit substrate 10, to cause winding coil 11B wireline reel along the X direction and wireline reel and the interarea of circuit substrate 10
It is parallel.Alternatively, it is also possible to be configured to：Bobbin as insulator keeps magnetic core body 11A, winding coil 11B to be wound in
Bobbin and it is wound in around magnetic core body 11A.
Magnetic shield 12 is approximately parallelepiped body shape, is the metal frame with empty tubular along the X direction.Magnetic screen
Body 12 is formed by low-resistance excellence conductor, such as Cu or Al.That is, magnetic shield 12 is made up of electroconductive member.
Circuit substrate 10 and coil portion 11 are inserted into the cavity of magnetic shield 12, with cause winding coil 11B winding direction of principal axis with
The opening of magnetic shield 12 is orthogonal.Moreover, coiling direction of the magnetic shield 12 along winding coil 11B and by circuit substrate 10
A part and coil portion 11 surround.
The inwall of the magnetic shield 12 of tubular is provided with insulator 13.By the insulator 13, magnetic screen can be kept
Body 12 and the insulation distance of circuit substrate 10 and coil portion 11.Alternatively, it is also possible to be not provided with insulator 13.
In addition, for permanent circuit substrate 10 and coil portion 11 and magnetic shield 12, such as circuit substrate 10 can also be made
It is adhered to insulator 13.Further, when circuit arrangement 1 is installed on into mother substrate (not shown), can also be by circuit substrate 10
And coil portion 11 and magnetic shield 12 are each fixed to mother substrate respectively.Specifically, circuit substrate 10 and coil portion 11 are fixed
In mother substrate, magnetic shield 12 is fixed on mother substrate, to cause coil portion 11 in cavity.
Because along coiling direction, winding coil 11B is surrounded with magnetic shield 12, so being leaked out from winding coil 11B
Magnetic flux interlinked with magnetic shield 12 and in magnetic shield 12 circulating current.By the electric current, from magnetic shield 12 produce with
The magnetic flux of the magnetic flux opposite direction leaked out from winding coil 11B.Because by the caused magnetic flux, let out from winding coil 11B
The magnetic flux spilt is cancelled, so the stray field from winding coil 11B can be reduced.As a result, can suppress to let out from winding coil 11B
The magnetic field spilt influences to caused by the electronic equipments such as the wireless device of surrounding.
In order that the leakage of magnetic flux efficiently reduces, the length of the X-direction of magnetic shield 12 is at least set to winding coil
More than the length of 11B X-direction and below the length of magnetic core body 11A X-direction.Moreover, magnetic shield 12 is relative to electricity
Base board 10 and coil portion 11 are configured at least winding coil 11B and are integrally located in cavity.In addition, used below is " long
Degree " means the length of X-direction.
Fig. 3 is the figure of the relation of the attenuation of the length and stray field that represent magnetic shield 12.Wherein, Fig. 3 is to represent to adopt
With the relation of the length of the magnetic shield 12 in the case of the transformer of Fig. 6 described later construction and the attenuation of stray field
Figure.In Fig. 3, the longitudinal axis represents that the attenuation [dB] of stray field, transverse axis represent the length [mm] of magnetic shield 12.The decay of stray field
The state that amount [dB] is not present using magnetic shield 12, stray field when that is the length of magnetic shield 12 is changed into 0 are used as base
It is accurate.Further, in this example embodiment, winding coil 11B length is about 20mm, magnetic core body 11A length is about 30mm.
As shown in the drawing, in the case where the length of magnetic shield 12 is about 20~30mm, the attenuation of stray field is substantially
It is constant.Therefore, magnetic shield 12 is without the magnetic core body 11A of coil portion 11 or the entirety of circuit substrate 10 are surrounded, as long as extremely
It is overall that winding coil 11B is surrounded less, so that it may is fully reduced from the magnetic field that winding coil 11B is leaked out.So, without by magnetic cup
Cover body 12 to increase to more than necessary degree, so that it may prevent the maximization of circuit arrangement 1.
Further, magnetic shield 12 also integratedly surrounds circuit substrate 10 and coil portion 11, therefore the length of magnetic shield 12
Degree or configuration place are not affected by limitation, can integrally be surrounded winding coil 11B with magnetic shield 12.Assuming that in Fig. 1, take
In the case that magnetic shield 12 does not surround circuit substrate 10 and only surrounds the winding coil 11B construction of coil portion 11, magnetic cup
A part for body 12 is covered by between circuit substrate 10, coil portion 11 and connection conductor 11C.In order to ensure insulating properties and suppression
Floating capacity, magnetic shield 12 need to keep distance to a certain degree with being connected conductor 11C.Especially, carried out in coil portion 11 humorous
In the case of shaking, due to the voltage rise between the both ends of coil, therefore the length of magnetic shield 12 is connected conductor 11C limitations.Knot
Fruit, length of the magnetic shield 12 than winding coil 11B is also short, sometimes can not integrally surround winding coil 11B.In this case,
The leakage from the magnetic field for the winding coil 11B not surrounded by magnetic shield 12 can not be prevented.Thus, as present embodiment that
Sample, magnetic shield 12 integratedly surround circuit substrate 10 and coil portion 11, and obstacle, magnetic will not be turned into by being thus connected conductor 11C
Shield 12 can integrally surround winding coil 11B.
Further, due to utilizing magnetic shield 12, also circuit substrate 10 is surrounded together with coil portion 11, as long as therefore by circuit
Substrate 10 and coil portion 11 insert the magnetic shield 12 of tubular, and magnetic shield 12 can be utilized to be constructed with easy by winding
Coil 11B is surrounded.Further, even if after coil portion 11 is installed into circuit substrate 10, magnetic shield 12 can be also set.
In addition, in present embodiment, although using rectangular-shaped circuit substrate 10, the shape of circuit substrate not by
It is defined in this.As long as at least a portion of circuit substrate is inserted the magnetic shield 12 of tubular together with coil portion 11.
Fig. 4 and Fig. 5 be represent to possess it is rectangular-shaped beyond shape circuit substrate circuit arrangement example figure.
Circuit arrangement 1A shown in Fig. 4 possesses the circuit substrate 10A for bending L-shaped shape substantially at right angles.In the circuit
A substrate 10A part (the prominent part of bending) is provided with coil portion 11.Moreover, there is provided the circuit substrate of coil portion 11
A 10A part and coil portion 11 is inserted into magnetic shield 12.
Circuit arrangement 1B shown in Fig. 5 possesses the circuit substrate 10B for having slit S1 in a part.Split by slit S1
A circuit substrate 10B part be provided with coil portion 11.Moreover, there is provided the circuit substrate 10B of coil portion 11 part
Magnetic shield 12 is inserted into coil portion 11.
As shown in Figures 4 and 5, due to a part for coil portion 11 and circuit substrate (10A, 10B) can be included, office
Covered to portion's property, therefore compared with shield, circuit substrate is integrally sandwiched, can locally it suppress from coil portion 11
The magnetic flux sewed.Therefore, shield effectiveness can be improved.Further, by setting slit S1 in circuit substrate 10B as shown in Figure 5, so as to
High voltage portion and the other parts on circuit substrate 10B can physically be separated, it can be ensured that high voltage portion and other portions
The insulating properties divided, can suppress to disturb.
, also can be by without junction surface in addition, although magnetic shield 12 can also make multiple electroconductive members engage and form
Point the electroconductive member of 1 tubular formed.It is lost in this case, can reduce caused by the resistance components of bonding part, can
Loss is reduced, shield effectiveness can be improved.
Further, coil portion 11 can also be the winding transformer with 2 winding coils.
Fig. 6 is the top view for the circuit arrangement 1C that coil portion is set to winding transformer.In Fig. 6, description magnetic cup is had an X-rayed
Cover the part that body 12 blocks.Circuit arrangement 1C possess circuit substrate 10, be installed to circuit substrate 10 interarea coil portion 14,
With the magnetic shield 12 for surrounding circuit substrate 10 and coil portion 14.Coil portion 14 is magnetic core body 14A, the E for having possessed E types
The magnetic core body 14B of type and be wound onto magnetic core body 14A primary coil 14C and secondary coil 14D winding transformation
Device.In the case where making primary coil 14C or secondary coil 14D resonance, in order to suppress the change of resonant frequency caused by magnetic saturation
Change, it is necessary to set space, in the present embodiment, set between the magnetic core body 14B of magnetic core body 14A and the E type of E types
It is equipped with space.On the other hand, by setting space, so as to become prone to produce stray field from space.
In the case where circuit arrangement 1C is winding transformer, the length of magnetic shield 12 is primary coil 14C and secondary
The length of coil 14D profile it is total more than.Thereby, it is possible to by magnetic shield 12 by primary coil 14C and secondary coil
14D is surrounded.Thus, can reduce from the magnetic field of primary coil 14C and secondary coil 14D leakages.
Alternatively, it is also possible to set the insulator 13 illustrated by Fig. 1 etc. in the inwall of magnetic shield 12.In primary coil 14C
Or distance is can ensure that between secondary coil 14D and magnetic shield 12, short circuit can be prevented.Due to by magnetic shield 12 by coil
A part for the circuit substrate 10 in portion 14 including high voltage portion fences up, therefore other that can be also carried close to electronic equipment
Configure electroconductive member.Even if in this case, also ensure that insulating properties, the assembling of the high electronic equipment of reliability is become
Obtain easily.
Further, because magnetic shield 12 is made up of electroconductive member, therefore also take on the task of electric field shield.Make coil
In the case that resonance carrys out use, the both end voltage rise of coil.Coil-conductor turns into electric field generating source.By being configured to use magnetic cup
Cover body 12 to cover coil-conductor, so as to which electric field can be covered near the coil as electric field generating source.In magnetic shield 12 certainly
In the case of the potential change increase of body, in order to determine the current potential of magnetic shield 12, magnetic shield and electricity are connected with electric conductor
The reference potential on road.Wherein, resistive element can also be used as electric conductor.
(embodiment 2)
Fig. 7 is the stereogram for the circuit arrangement 2 that embodiment 2 is related to.Fig. 7 is represented circuit substrate 10 and the He of coil portion 11
The state that magnetic shield 12 separates.Fig. 8 is the front view for the circuit arrangement 2 seen from X-direction.Fig. 9 is the vertical of insulator 15
Body figure.
Circuit arrangement 2 possesses circuit substrate 10, coil portion 11 and magnetic shield 12.It is provided with the inwall of magnetic shield 12
Insulator 15.Insulator 15 is the cartridge type shape same with magnetic shield 12, in the Y direction the wall difference of opposed insulator 15
Formed with groove 15A along the X direction.Groove 15A is one of " holding section " that the utility model is related to.Circuit substrate
10 end along the X direction is sticked in groove 15A.
In the case where configuring magnetic shield 12 relative to circuit substrate 10 and coil portion 11, make the end of circuit substrate 10
Portion is slided in groove 15A, by the X direction being aligned magnetic shield 12, so as to make the winding of coil portion 11
Coil is located in the cavity of magnetic shield 12.In this case, in the Y direction and in Z-direction, without carrying out circuit substrate 10 and coil
Portion 11 and the contraposition of magnetic shield 12.Therefore, the contraposition when configuration magnetic shield 12 becomes easy, magnetic shield 12 can be made
Configured in position relative to circuit substrate 10 and coil portion 11.
Make the resonant frequency in the case of the resonance of coil portion 11, because parasitic caused by between coil portion 11 and magnetic shield 12
Attenuation of electric capacity or magnetic shield 12 etc. and influenceed by impedance possessed by coil portion 11, change.Further, need
Make the high voltage portion of coil portion 11 not excessively close to magnetic shield 12.It is therefore desirable to magnetic shield 12 is relative to coil portion 11
Configuration is in position.
In addition, insulator 15 is not defined as the construction shown in Fig. 9, can suitably change.
Figure 10 (A) and Figure 10 (B) is the figure for the other examples for representing insulator 15.
Insulator 15 shown in Figure 10 (A) by the shorter length of the length with than magnetic shield 12 multiple insulators
151st, 152,153 composition.Groove 15B is respectively formed with multiple insulators 151,152,153.Insulator 151,152,153
It is arranged at the inwall of magnetic shield 12 with vacating distance along the X direction.
Insulator 15 shown in Figure 10 (B) is the cartridge type shape same with magnetic shield 12, opposed with Y-direction in inwall
Part, formed with prominent convex portion 15C in the opposite direction respectively.Convex portion 15C equivalent to groove 15A, circuit substrate 10
End is sticked in convex portion 15C.
(embodiment 3)
In embodiment 3, the shape of the insulator of holding circuit substrate is different from embodiment 2.
Figure 11 is the stereogram for the circuit arrangement 3 that embodiment 3 is related to.Figure 11 is represented circuit substrate 10 and coil portion
11 and the state that separates of magnetic shield 12.Figure 12 is the front view for the circuit arrangement 3 seen from X-direction.Figure 13 is insulator
16 stereogram.
Circuit arrangement 3 possesses circuit substrate 10, coil portion 11 and magnetic shield 12.It is provided with the inwall of magnetic shield 12
Insulator 16.Insulator 16 is the cartridge type shape same with magnetic shield 12, and protuberance 16A, 16B are formed respectively along the X direction
In the wall of insulator 16 opposed in Y-direction.Further, protuberance 16C, 16D be respectively formed in along the X direction it is right in Z-direction
The wall for the insulator 16 put.Circuit substrate 10 is placed in protuberance 16D, and from Y-direction and Z-direction by protuberance 16A,
16B, 16C fence up.A small amount of space is provided between coil portion 11 and protuberance 16A, 16B, 16C.
In the case where configuring magnetic shield 12 relative to circuit substrate 10 and coil portion 11, circuit substrate 10 is loaded
In protuberance 16D, magnetic shield 12 is aligned in the X direction, with cause coil portion 11 be located at by protuberance 16A, 16B,
The space that 16C fences up, thus enable that the winding coil of coil portion 11 is located in the cavity of magnetic shield 12.In this case,
The contraposition of circuit substrate 10 and coil portion 11 and magnetic shield 12 need not be carried out in the Y direction and in Z-direction.Therefore, configuration magnetic cup
Contraposition when covering body 12 becomes easy, can configure magnetic shield 12 suitable relative to circuit substrate 10 and coil portion 11
When position.
In addition, insulator 16 is not defined as the construction shown in Figure 13, can suitably change.
Figure 14 is the figure for the other examples for representing insulator 16.
Insulator 16 shown in Figure 14 is cartridge type shape, and the wall of opposed insulator 16 is formed recessed respectively in the Y direction
Portion 161,162, in z-direction the wall of opposed insulator 16 form recess 163,164 respectively.Recess 161,162 equivalent to
Described protuberance 16A, 16B, recess 163,164 is equivalent to described protuberance 16C, 16D.
(embodiment 4)
Figure 15 is the figure for representing the circuit arrangement 4 that embodiment 4 is related to.
Circuit arrangement 4 possesses circuit substrate 10, coil portion 14, magnetic shield 12, insulator 13 and electrostatic shielding body 17.Line
Circle portion 14 is the winding transformer illustrated in embodiment 1.Moreover, in the main surface mount coil portion 11 of circuit substrate 10, electricity
Base board 10 and coil portion 11 are fenced up by the magnetic shield 12 that insulator 13 is provided with inwall.
Electrostatic shielding body 17 has cavity, in empty configuration circuit substrate 10 of electrostatic shielding body 17 etc., to cause electricity
Base board 10, coil portion 11, magnetic shield 12 and the overall encirclement of insulator 13.By electrostatic shielding body 17, it can reduce and come from
The influence of outside static noise (electric field noise).
The conductor thickness of the electrostatic shielding body 17 is thinner than the conductor thickness of magnetic shield 12.Easily flowed in order that obtaining electric current
Crossing prevents the magnetic shield 12 of stray field, although being set to, low-resistance excellence conductor is refined also to thicken its conductor thickness, due to
Electrostatic shielding body 17 without circulating current, therefore can skiving electrostatic shielding body 17 conductor thickness.Even if therefore, there is provided electrostatic
In the case of shield 17, the lightweight of circuit arrangement 4 can be also sought.Due to that need not easily flow through electric current, therefore for quiet
For the material of electrical shielding body 17, the higher conductor of resistivity ratio can be used.
Further, when with electrostatic shielding body 17, the grade of circuit substrate 10 is surrounded, sometimes in the composition of electrostatic shielding body 17
The bonding portion of component produces gap or electric conductivity weakens.Therefore, it is possible to let out from bonding portion from the magnetic field of coil portion 14
Leakage, but the stray field from coil portion 14 is reduced by surrounding the magnetic shield 12 of coil portion 14, therefore magnetic field is substantially not
It can be leaked from electrostatic shielding body 17.
(embodiment 5)
In the example, the i.e. circuit arrangement 1A of winding transformer illustrated to employing Fig. 6 electrical power transmission system is carried out
Explanation.
Figure 16 is the circuit diagram for the electrical power transmission system 5 that embodiment 5 is related to.
Electrical power transmission system 5 possesses electric supply installation 101 and current-collecting device 201.Current-collecting device 201 possesses load circuit RL.
Load circuit RL includes charging circuit and secondary cell.Wherein, secondary cell can also be handling relative to current-collecting device 201
Formula.Moreover, current-collecting device 201 is that possess secondary cell, such as portable electric appts.Can as portable electric appts
Enumerate mobile phone, PDA (Personal Digital Assistant), portable music player, notebook type PC, number
Code-phase machine etc..Electric supply installation 101 is the cradle for being charged to the secondary cell of placed current-collecting device 201.
Electric supply installation 101 possesses the power supply Vin of output DC voltage.Dc source Vin is the AC being connected with source power supply
Adapter.Dc source Vin is connected to the inverter circuit 21 for alternating voltage by DC voltage conversion.Inverter circuit 21
Outlet side is connected to step-up transformer T1 armature winding.Boosting is applied to by the transformed alternating voltage of inverter circuit 21 to become
Depressor T1.Step-up transformer T1 secondary windings is connected to active electrode 22 and passive electrode 23.Step-up transformer T1 will be from inverse
Become the alternating voltage boosting that device circuit 21 applies, and apply to active electrode 22 and passive electrode 23.
Current-collecting device 201 possesses active electrode 32 and passive electrode 33.Current-collecting device 201 is being loaded into (loading) to power supply
In the case of device 101, active electrode 22,32 each other, passive electrode 23,33 it is opposed across gap separately from each other.By this
It is arranged opposite, active electrode 22,32 each other, passive electrode 23,33 carry out field coupling each other.Via the coupling, electric supply installation
101 electrode and the electrode of current-collecting device 201 transmit electricity with non-contacting state from electric supply installation 101 to current-collecting device 201
Power.
The active electrode 32 and passive electrode 33 of current-collecting device 201 are connected to step-down transformer T2 primary coil.Decompression
Transformer T2 secondary coil is connected to rectifier smoothing circuit 31.After rectifier smoothing circuit 31 will be depressured by step-down transformer T2
Ac voltage rectifier and smooth.Rectifier smoothing circuit 31 is connected to power transformation circuit 30.Power transformation circuit 30 will be by rectification
The rectification of smooth circuit 31 and smoothed voltage transformation are the given voltage stablized, are supplied to load circuit RL.
The step-up transformer T1 of electric supply installation 101 and the step-down transformer T2 of current-collecting device 201 can use Fig. 6 institutes respectively
The circuit arrangement 1A shown.Circuit arrangement 1A is respectively adopted in step-up transformer T1 and step-down transformer T2, thus can reduce from around
The stray field of group coil.Therefore, the magnetic field from winding coil can be prevented to configuring in electric supply installation 101 and current-collecting device 201
Around the electronic equipment such as wireless device impact.
In addition, step-up transformer T1 with leakage inductance L1, step-down transformer T2 with magnetizing inductance L2.Leakage can also be utilized
Inductance L1, magnetizing inductance L2 and form resonant frequency identical resonance circuit respectively in electric supply installation 101 and current-collecting device 201.
In this case, power transmission efficiency can be improved.
Although the electrical power transmission system of field coupling type is illustrated in present embodiment, for other high voltages
The circuit arrangement 1A shown in Fig. 4 can be similarly used for generation circuit.For example, piezoelectric element driving electricity can be applied to
Road or arresting element drive circuit etc..
- symbol description-
L1... inductance
L2... magnetizing inductance
RL... load circuit
S1... slit
T1... step-up transformer
T2... step-down transformer
Vin... dc source
1st, 1A, 1B, 1C, 2,3,4... circuit arrangements
5... electrical power transmission system
10th, 10A, 10B... circuit substrate
11... coil portion
11A... magnetic core bodys
11B... winding coils
11C... connection conductors
12... magnetic shield (magnetic screen conductor)
13... insulator (insulation division)
14... coil portion
14A, 14B... magnetic core body
14C... primary coils
14D... secondary coils
15... insulator (insulation division)
15A, 15B... groove
15C... convex portions
16... insulator
16A, 16B, 16C, 16D... protuberance
17... electrostatic shielding body
21... inverter circuit
22... active electrode (supply side coupling part)
23... passive electrode (supply side coupling part)
32... active electrode (power side coupling part)
33... passive electrode (power side coupling part)
30... power transformation circuit
31... rectifier smoothing circuit
101... electric supply installation
151st, 152,153... insulators
161st, 162,163,164... recesses
201... current-collecting device
Claims (11)
1. a kind of circuit arrangement, possesses：
Circuit substrate；
Winding coil, wireline reel is arranged on the interarea of the circuit substrate with the main surface parallel of the circuit substrate；With
Magnetic screen conductor, at least along the winding coil coiling direction by the circuit substrate and the winding coil bag
Enclose.
2. circuit arrangement according to claim 1, wherein,
The magnetic screen conductor is tubular,
The opening of the magnetic screen conductor of tubular and the winding direction of principal axis of the winding coil intersect.
3. circuit arrangement according to claim 2, wherein,
The length of the magnetic screen conductor is that the length of the normal direction of the opening is the wireline reel of the winding coil
It is more than the length in direction.
4. circuit arrangement according to claim 3, wherein,
The winding coil is wound in magnetic,
Below length of the length of the normal direction of the magnetic screen conductor for the winding direction of principal axis of the magnetic.
5. according to circuit arrangement according to any one of claims 1 to 4, wherein,
Possess 2 winding coils,
2 winding coils form the winding transformer using a side as primary coil and using the opposing party as secondary coil.
6. according to circuit arrangement according to any one of claims 1 to 4, wherein,
The circuit arrangement possesses electrostatic screen conductor, the electrostatic screen conductor by the circuit substrate, the winding coil and
The magnetic screen conductor surrounded.
7. circuit arrangement according to claim 6, wherein,
The conductor thickness of the electrostatic screen conductor is thinner than the conductor thickness of the magnetic screen conductor.
8. the circuit arrangement according to any one of claim 2~4, wherein,
The circuit arrangement possesses the insulation division along the inwall setting of the magnetic screen conductor.
9. circuit arrangement according to claim 8, wherein,
The insulation division has the holding section engaged with the end of the circuit substrate.
10. circuit arrangement according to claim 8, wherein,
The insulation division has multiple protruding portion, and the multiple protuberance protrudes inwardly from the inwall, determines the circuit
The allocation position of substrate and the winding coil.
11. a kind of electrical power transmission system, possesses：
Electric supply installation, have and the step-up transformer of the boost in voltage inputted and being applied in is boosted by the step-up transformer
The supply side coupling part of voltage afterwards；And
Current-collecting device, there is power side coupling part, the downconverter for the voltage step-down for being induced the power side coupling part
Device and the load output circuit by the voltage after being depressured from the step-down transformer to load output,
The supply side coupling part and the power side coupling part carry out field coupling, thus from the electric supply installation to it is described by
Electric installation transmits electric power, wherein,
At least one party of the step-up transformer and the step-down transformer includes electricity according to any one of claims 1 to 9
Road device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015035098 | 2015-02-25 | ||
| JP2015-035098 | 2015-02-25 | ||
| PCT/JP2016/054643 WO2016136568A1 (en) | 2015-02-25 | 2016-02-18 | Circuit device and power transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206991926U true CN206991926U (en) | 2018-02-09 |
Family
ID=56788441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201690000387.3U Active CN206991926U (en) | 2015-02-25 | 2016-02-18 | Circuit arrangement and electrical power transmission system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN206991926U (en) |
| WO (1) | WO2016136568A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544573A (en) * | 2018-05-28 | 2019-12-06 | 三星电机株式会社 | Coil component |
| CN111725899A (en) * | 2019-03-19 | 2020-09-29 | Tdk株式会社 | Coil unit, wireless power feeding device, wireless power receiving device, and wireless power transmission system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS615673Y2 (en) * | 1980-01-16 | 1986-02-20 | ||
| JPS5911590A (en) * | 1982-07-09 | 1984-01-21 | Hitachi Ltd | Magnetic bubble memory device |
| JP2014183689A (en) * | 2013-03-21 | 2014-09-29 | Panasonic Corp | Non-contact charging system |
| JP2014241673A (en) * | 2013-06-11 | 2014-12-25 | 株式会社東芝 | Electromagnetic wave leakage prevention device |
-
2016
- 2016-02-18 WO PCT/JP2016/054643 patent/WO2016136568A1/en active Application Filing
- 2016-02-18 CN CN201690000387.3U patent/CN206991926U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544573A (en) * | 2018-05-28 | 2019-12-06 | 三星电机株式会社 | Coil component |
| CN111725899A (en) * | 2019-03-19 | 2020-09-29 | Tdk株式会社 | Coil unit, wireless power feeding device, wireless power receiving device, and wireless power transmission system |
| CN111725899B (en) * | 2019-03-19 | 2024-03-08 | Tdk株式会社 | Coil unit, wireless power supply device, wireless power receiving device, and wireless power transmission system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016136568A1 (en) | 2016-09-01 |
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