CN112927908B - Vehicle-mounted inductive coupling coil assembly and coupling mechanism of non-contact power supply system - Google Patents

Vehicle-mounted inductive coupling coil assembly and coupling mechanism of non-contact power supply system Download PDF

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Publication number
CN112927908B
CN112927908B CN202110153190.0A CN202110153190A CN112927908B CN 112927908 B CN112927908 B CN 112927908B CN 202110153190 A CN202110153190 A CN 202110153190A CN 112927908 B CN112927908 B CN 112927908B
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Prior art keywords
inductive coupling
mounting plate
coupling coil
power supply
coil
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CN202110153190.0A
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CN112927908A (en
Inventor
李美征
李东义
韩冰
刘克强
田裕鹏
陈敬东
杨鹏
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CRRC Qingdao Sifang Rolling Stock Research Institute Co Ltd
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CRRC Qingdao Sifang Rolling Stock Research Institute Co Ltd
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • 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
    • H01F27/08—Cooling; Ventilating
    • H01F27/085—Cooling by ambient air
    • 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
    • H01F27/24—Magnetic cores
    • 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
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Abstract

The application relates to a vehicle-mounted inductive coupling coil assembly of a non-contact power supply system, belonging to the field of inductive coils; the device comprises a first mounting plate and a second mounting plate; the inner surface of the second mounting plate is hollowed to form a second mounting space for mounting the induction coupling coil; the first mounting plate and the second mounting plate are oppositely matched and mounted to form a coil assembly shell. The shell is provided with a through hole to allow the induction coupling coil to penetrate out of the coil assembly.

Description

Vehicle-mounted inductive coupling coil assembly and coupling mechanism of non-contact power supply system
Technical Field
The application relates to a vehicle-mounted inductive coupling coil assembly of a non-contact power supply system, and belongs to the field of induction coils.
Background
The non-contact power supply adopts an electromagnetic induction resonance coupling technology, and electric energy is transmitted from power supply equipment to inductively coupled load equipment through an established alternating electromagnetic field, so that the non-contact power supply has popularization and deep research and application in various industries, such as wireless charging, inductive heating and the like. Modern tramcars as a novel, efficient and energy-saving large-traffic urban public transportation facility have been rapidly developed in many cities at home and abroad, the power supply types of the tramcars are mainly divided into several types, namely full-line contact network power supply, full-line partial contact network power supply and full-line non-contact network power supply, and the non-contact power supply system of the tramcars also begins to be valued and researched by multiple countries as a novel power supply system; therefore, it is urgent to design a reasonable vehicle-mounted inductive coupling coil assembly.
Chinese utility model patent CN201219202Y discloses a non-contact charging device, includes at least: the portable charger is provided with a power storage unit, a driving coil and a shielding piece, the driving coil is connected with the power storage unit, the shielding piece is arranged on the driving coil, the shielding piece is provided with an opening to expose the driving coil, the sleeve body is provided with a plurality of sheet bodies, each sheet body is enclosed into an accommodating space for accommodating a charged object, an induction coil is arranged in one sheet body and connected with a power supply unit in the charged object, the induction coil generates induction current by the electromagnetic induction of the driving coil and transmits the induction current to the power supply unit to charge the power supply unit, and the charging effect can be achieved without contact between the portable charger and the charged object.
Chinese utility model patent CN206617985U discloses an induction coil mounting structure, induction coil mounting structure includes: mounting a plate; a plurality of cantilevers disposed on the mounting plate; the limiting ribs are arranged on the mounting plate, and the plurality of cantilevers and the limiting ribs are arranged in a ring shape; induction coil, induction coil sets up a plurality of cantilevers with between the mounting panel with a plurality of cantilever restrictions induction coil is in the degree of freedom of first direction, and is the annular distribution a plurality of cantilevers with spacing muscle restriction induction coil is at the perpendicular to the ascending degree of freedom of second direction of first direction, wherein first direction is induction coil's direction of height. According to the induction coil mounting structure provided by the embodiment of the utility model, the induction coil can be firmly fixed, and the induction coil is convenient to rapidly disassemble and assemble.
Disclosure of Invention
The utility model aims to provide a vehicle-mounted inductive coupling coil assembly (hereinafter, the coil assembly can be simply referred to as a coil assembly) of a non-contact power supply system, which can be used for a tramcar. The coil component is compact in structure, reasonable in layout, safe and reliable.
A first embodiment of the present application provides a vehicle-mounted inductive coupling coil assembly of a non-contact power supply system, which includes a first mounting plate and a second mounting plate; wherein the content of the first and second substances,
the inner surface of the second mounting plate is hollowed to form a second mounting space for mounting the induction coupling coil;
the first mounting plate and the second mounting plate are oppositely matched and mounted to form a coil assembly shell.
The shell is provided with a through hole to allow the induction coupling coil to penetrate out of the coil assembly.
Optionally, the inner surface of the first mounting plate is hollowed to form a heat dissipation space, and a first rib plate is arranged in the heat dissipation space; the outer surface of the first mounting plate is hollowed to form a first mounting space for mounting the magnetic core.
Optionally, the through holes are provided on the first mounting plate twice as many as the number of the inductive coupling coils.
Optionally, the first mounting plate and the second mounting plate are both processed by FR4 epoxy boards.
Optionally, a limiting column and a second rib plate are arranged in the second mounting space; the second rib plate divides the second installation space into a plurality of subspaces for installing the induction coupling coil; the limiting column limits the inductive coupling coil at the inner side of the inductive coupling coil. The second rib plates and/or the limiting columns can be used for installing and positioning the induction coupling coils installed in the corresponding subspaces.
Optionally, a plurality of layers of wound inductive coupling coils are stacked and mounted in each sub-space, the inductive coupling coils in adjacent sub-spaces are connected in an up-and-down cross manner, and current flow directions between adjacent coil groups of adjacent sub-spaces are the same.
Optionally, the number of the subspaces is even, two layers of wound inductive coupling coils are stacked and mounted in each subspace, and the inductive coupling coils in adjacent subspaces are connected in an up-and-down cross manner, so that two inductive power supply channels are formed.
Optionally, a heat dissipation air inlet and a heat dissipation air outlet are arranged on the housing to dissipate heat of the inductive coupling coil.
Optionally, the heat dissipation air inlet hole is formed in the side face of the second mounting plate, and the heat dissipation air outlet hole is formed in the surface of the second mounting plate and located in an inner gap formed by the induction coupling coil; the heat dissipation space is adjacent to the inductive coupling coil.
A second mode of the present application provides an electromagnetic coupling mechanism for a contactless power supply system, which includes the aforementioned vehicular inductive coupling coil assembly and power supply inductive coil for a contactless power supply system according to any technical solution.
Compared with the prior art, the beneficial effect of this application is:
the coil assembly that this at least one embodiment of the application provided can enough satisfy efficient electromagnetic induction coupling coefficient through the configuration of customizing the adjustment to internal coil size and magnetic core overall arrangement, can provide convenient equipment and maintenance condition through the mounting structure design of layering again, can also satisfy the intensity requirement under the more abominable impact vibration operating mode of tram through holistic structural design.
This application at least one embodiment need possess adjustable demand to the size of coil, coiling mode and self-inductance parameter, and the demand of convenient equipment and maintenance provides a better structural design scheme, and compact structure, rationally distributed and safe and reliable possess the batch production condition, better saving manpower, reduction investment cost to can guarantee the permanent steady operation of tram non-contact power supply system's safety.
The tramcar designed by the coil assembly provided by at least one embodiment of the application has high inductive coupling coefficient, energy transmission efficiency and structural strength, and can realize efficient energy transmission and stable operation of a non-contact power supply system of the tramcar.
Drawings
FIG. 1 is a schematic view of the outer surface of a first mounting plate;
FIG. 2 is a schematic view of the inner surface of the first mounting plate;
FIG. 3 is a schematic diagram of a coil assembly;
FIG. 4 is a schematic view of the second mounting plate and associated components;
numbering in the figures: 1, a first mounting plate, 101, the inner surface of the first mounting plate, 102, a heat dissipation space, 103, a first rib plate, 104, the outer surface of the first mounting plate, 105, a first mounting space and 106 through holes; 2, a second mounting plate, 201 the inner surface of the second mounting plate, 202 a second mounting space, 203 a limiting column and 204 a second rib plate; 3 inductive coupling coil, 4 magnetic cores, 5 heat dissipation fresh air inlets, 6 heat dissipation exhaust vents.
Detailed Description
The technical solutions of the present application are explained in detail below with reference to specific embodiments, however, it should be understood that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the present application, it is to be understood that the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the description of the present application, it is to be understood that the terms "upper", "lower", "bottom", "inner", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 3 and 4, are only used for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
A first embodiment of the present application provides an on-board inductive coupling coil assembly (hereinafter may be simply referred to as a coil assembly) of a contactless power supply system, which may be used for contactless power supply of a tram.
The coil assembly and the ground power supply induction coil jointly form a non-contact power supply system electromagnetic coupling mechanism (which can be simply referred to as a coupling mechanism hereinafter); wherein, ground power supply induction coil provides the power, and the coil pack passes through electromagnetic induction and forms the electric current in the coil. Conventionally, since the size and shape of the ground power supply induction coil are fixed, the self-inductance and resonant coupling frequency parameters of the ground power supply induction coil are fixed, and therefore the resonant coupling frequency parameters of the induction coupling coil 3 of the coil assembly need to be consistent with those of the ground power supply induction coil as much as possible, so that the coupling mechanism can obtain a high-efficiency inductive coupling coefficient, and thus a high energy transmission efficiency can be ensured (the resonant coupling frequency parameters are directly determined by the self-inductance parameters). In consideration of the unavoidable tolerance during the mass production and assembly of the coil assembly, the inductive coupling coil 3 may be configured to have an adjustable self-inductance parameter.
Specifically, the coil component includes: a first mounting plate 1 and a second mounting plate 2, wherein:
as shown in fig. 2, an inner surface 101 of the first mounting plate 1 is hollowed to form a heat dissipation space 102, and a first rib plate 103 is arranged in the heat dissipation space 102; thereby can guide the heat dissipation wind to realize higher radiating efficiency on the one hand, on the other hand can increase the bearing strength of first mounting panel 1 under the heavy prerequisite of subtracting (because the magnetic core still can be laid to first mounting panel 1 surface, bear heavier, and first mounting panel 1 design has the demand that promotes the lower floor coil of after-maintenance alone).
As shown in fig. 1 and 3, the outer surface 104 of the first mounting plate 1 is hollowed to form a first mounting space 105, and the first mounting space 105 is provided with the magnetic core 4. The magnetic core 4 adopts the piece formula ferrite material, closely pastes and is fixed in the surface 104 of first mounting panel 1, can increase magnetic permeability, can retrain magnetic field again and reduce the produced eddy current loss of tram car bottom metal part of magnetic field flow through, and the different overall arrangement of magnetic core 4 simultaneously, the mode of piling up also can influence the self-inductance parameter of inductive coupling coil 3 to influence coupling mechanism's inductive coupling coefficient and energy transmission efficiency.
Alternatively, the magnetic core 4 may be laid in the first installation space 105 by a firm adhesion manner (such as strong structural adhesive), the layout and the stacking manner may be customized and configured according to the self-inductance parameter requirement of the inductive coupling coil 3, and the multilayer stacking manner may be adopted at the position where the magnetic core 4 generates heat higher to reduce the core loss per unit volume, thereby reducing the overall hot spot temperature of the magnetic core 4.
The first mounting plate 1 can be made of a high-strength FR4 epoxy plate. The inner surface and the outer surface are hollowed out, so that the weight of the whole body can be reduced.
As shown in fig. 4, the inner surface 201 of the second mounting plate 2 is hollowed to form a second mounting space 202, and the inductive coupling coil 3 wound spirally is disposed in the second mounting space 202. The second mounting plate 2 can also be made of a high-strength FR4 epoxy plate.
The inner surface 101 of the first mounting plate and the inner surface 201 of the second mounting plate are mounted in opposed, mating relation, for example by bolting, to form the housing of the coil assembly, as shown in figure 3.
The second installation space 202 is also provided with a limiting column 203 and a second rib plate 204, the second rib plate 204 divides the second installation space 202 into a plurality of subspaces for installing the inductive coupling coil 3, and the limiting column 204 limits the inductive coupling coil 3 at the inner side thereof; the corresponding second rib plate 204 and/or the corresponding limiting column 203 can mount and position the inductive coupling coil 3 mounted therein to prevent loosening. The two limit positions provide size limit constraints for the induction coupling coil 3, the position of the limit position can be machined and adjusted according to actual requirements, and meanwhile, the distance between the limiting column 203 and the second rib plate 204 keeps an adjustable allowance of the induction coupling coil 3. For example, the inductive coupling coil 3 may abut against the restraining post 203, or abut against the second rib 204, or both after being wound.
And a plurality of layers of wound induction coupling coils are stacked up and down in each subspace, the induction coupling coils in adjacent subspaces are connected in an up-and-down crossing manner, and the current flow directions between adjacent coil groups of the adjacent subspaces are the same. Considering that the inductive effect of each layer is weakened if the number of layers of the inductive coupling coil stacked up and down is too large, the inductive coupling coils of the upper and lower layers as shown in fig. 4 are conventionally provided.
Therefore, 2 wound inductive coupling coils 3 are preferably stacked and installed in each subspace, the inductive coupling coils 3 in adjacent subspaces are connected in a cross manner, and the current flow direction between two adjacent coil groups in the middle is the same.
The number of the subspaces is even, the inductive coupling coils wound in an upper layer and a lower layer are stacked and installed in each subspace, and the inductive coupling coils in the adjacent subspaces are connected in an up-and-down crossed mode, so that two inductive power supply channels are formed. Wherein the current direction between adjacent coil groups in adjacent subspaces is the same.
The two-pass cross winding method shown in fig. 4 will be described as an example. There is a first inductive coupling coil 301 located at the upper part of the first sub-space 2021, and having a terminal B and a terminal D; a second inductive coupling coil 302 located at the lower part of the first subspace 2021, and having a terminal a and a terminal C; a third inductive coupling coil 303 located at the upper part of the second subspace 2022, and having a terminal E and a terminal G; and a fourth inductive coupling coil 304 located at the lower part of the second sub-space 2022, having a terminal F and a terminal H. Taking the first inductive coupling coil 301 and the fourth inductive coupling coil 304 as an example, when the end point D is regarded as the initial end of the first inductive coupling coil, the end point B is regarded as the terminal end of the first inductive coupling coil, the first inductive coupling coil 301 is arranged clockwise, and at this time, the current directions of the 5 coil groups of the first inductive coupling coil 301 located at the middle position are all from the upper right to the lower left, as shown by the arrow direction in fig. 4; then the 5 coil group current directions of the second inductive coupler coil 302 at the middle position, the 5 coil group current directions of the third inductive coupler coil 303 at the middle position, and the 5 coil group current directions of the fourth inductive coupler coil 304 at the middle position are all the same as the 5 coil group current directions of the first inductive coupler coil 301 at the middle position; accordingly, it can be determined that the current direction of the second inductive coupler 302 is clockwise, the current direction of the third inductive coupler 303 is counterclockwise, and the current direction of the fourth inductive coupler 304 is clockwise. Since the first inductive coupling coil 301 and the fourth inductive coupling coil 304 are cross-connected, the terminal B is connected to the terminal H, so that the final terminal D is an initial terminal and the terminal F is a terminal. Since the second inductive coupling coil 302 is cross-connected to the third inductive coupling coil 303, the terminal C is connected to the terminal E, so that the final terminal a is an initial terminal and the terminal G is a terminal.
Two sets of power supply paths can be obtained through the above arrangement, namely, a first power supply path composed of the first inductive coupling coil 301 and the fourth inductive coupling coil 304, and a second power supply path composed of the second inductive coupling coil 302 and the third inductive coupling coil 303. The double-channel cross layout can ensure that the air gap between each channel and the ground power supply induction coil is consistent, so that the consistency of the inductive coupling coefficients is ensured.
The shell of the coil assembly is also provided with a through hole 106, and the through hole 106 allows the inductive coupling coil 3 to penetrate out of the coil assembly; as shown in fig. 1-3, through holes are provided in the first mounting plate 1, through which respective coils extend out of the interior of the coil assembly.
And a heat dissipation air inlet hole 5 and a heat dissipation air outlet hole 6 are further formed in the shell of the coil assembly so as to dissipate heat of the induction coupling coil 3. Alternatively, as shown in fig. 4, the heat dissipation air inlet 5 is disposed on the side surface of the second mounting plate 2, and the heat dissipation air outlet 6 is disposed on the surface of the second mounting plate 2 at the internal gap formed by the inductive coupling coil 3; after the first mounting plate 1 and the second mounting plate are oppositely mounted, the heat dissipation space 102 of the first mounting plate 1 is adjacent to the inductive coupling coil 3; therefore, after wind enters from the heat dissipation air inlet 5 on the side face, the induction coupling coil is cooled, due to the blocking of the induction coupling coil, the wind can upwards enter the heat dissipation space 102, then the whole induction coupling coil is cooled more comprehensively, and finally the wind is discharged out of the coil assembly through the heat dissipation air outlet 6 in the middle of the induction coupling coil. The structure can guide the heat dissipation wind to realize the heat dissipation function of the induction coupling coil 3, can meet the heat dissipation requirement of the induction coupling coil sealed inside, and greatly ensures the internal heat diffusion and the safety of the whole assembly.
First mounting panel 1, second mounting panel 2, inductive coupling coil 3 and magnetic core 4 encapsulate as an organic whole jointly, form coil pack. The coil assembly is compact in structure, reasonable in layout, safe and reliable, and can bear the strength requirement under severe impact vibration working conditions in the running process of the tramcar.
A second embodiment of the present application provides an electromagnetic coupling mechanism for a contactless power supply system, where the coupling mechanism includes the vehicle-mounted inductive coupling coil assembly for the contactless power supply system described in any of the above technical solutions, and a power supply inductive coil. For tramcars, the power supply induction coil is generally arranged on the ground, and the coil assembly is supplied with power through the electromagnetic induction between the power supply induction coil and the ground.
The embodiments described above are merely preferred embodiments of the present application, and are not intended to limit the scope of the present application, and various modifications and improvements made to the technical solutions of the present application by those skilled in the art without departing from the spirit of the present application should fall within the protection scope defined by the claims of the present application.

Claims (9)

1. The vehicle-mounted inductive coupling coil assembly of the non-contact power supply system is characterized by comprising a first mounting plate and a second mounting plate; wherein the content of the first and second substances,
the inner surface of the second mounting plate is hollowed to form a second mounting space for mounting the induction coupling coil;
the first mounting plate and the second mounting plate are oppositely matched and mounted to form a coil assembly shell;
the shell is provided with a through hole to allow the induction coupling coil to penetrate out of the coil assembly;
the inductive coupling coils are arranged in the first installation space, a plurality of subspaces used for installing the inductive coupling coils are formed in the second installation space, the inductive coupling coils wound in multiple layers are stacked and installed in each subspace, the inductive coupling coils in adjacent subspaces are connected in an up-and-down crossed mode, and current flowing directions between adjacent coil groups in adjacent subspaces are the same.
2. The vehicle-mounted inductive coupling coil assembly of the non-contact power supply system according to claim 1, wherein the inner surface of the first mounting plate is hollowed to form a heat dissipation space, and a first rib plate is arranged in the heat dissipation space; the outer surface of the first mounting plate is hollowed to form a first mounting space for mounting the magnetic core.
3. The vehicle-mounted inductive coupling coil assembly of the non-contact power supply system according to claim 1 or 2, wherein a limiting column and a second rib plate are arranged in the second mounting space; the second rib plate divides the second installation space into a plurality of subspaces for installing the induction coupling coil; the limiting column limits the inductive coupling coil at the inner side of the inductive coupling coil.
4. The vehicle-mounted inductive coupling coil assembly of the non-contact power supply system according to claim 3, wherein the second rib plate and/or the limiting column can be used for installing and positioning the inductive coupling coil installed in the corresponding subspace.
5. The on-vehicle inductive coupling coil assembly of non-contact power supply system of claim 3, wherein the number of the sub-spaces is even, two layers of inductive coupling coils are stacked and mounted in each sub-space, and the inductive coupling coils in adjacent sub-spaces are connected in a vertically crossed manner, so as to form two inductive power supply channels.
6. The vehicle-mounted inductive coupling coil assembly of the non-contact power supply system according to claim 1, wherein the housing is provided with a heat dissipation air inlet hole and a heat dissipation air outlet hole to dissipate heat of the inductive coupling coil; the radiating air inlet hole is formed in the side face of the second mounting plate, and the radiating air outlet hole is formed in the surface of the second mounting plate and is positioned in an internal gap formed by the inductive coupling coil; the heat dissipation space is adjacent to the inductive coupling coil.
7. The on-board inductive coupling coil assembly of claim 3, wherein the number of through holes is twice the number of inductive coupling coils disposed on the first mounting plate.
8. The on-board inductive coupling coil assembly of claim 3, wherein the first mounting plate and the second mounting plate are made of FR4 epoxy.
9. A contactless power supply system electromagnetic coupling mechanism comprising the contactless power supply system vehicle-mounted inductive coupling coil assembly of any one of claims 1 to 8 and a power supply induction coil.
CN202110153190.0A 2021-02-04 2021-02-04 Vehicle-mounted inductive coupling coil assembly and coupling mechanism of non-contact power supply system Active CN112927908B (en)

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CN113571287B (en) * 2021-07-23 2023-03-14 横店集团东磁股份有限公司 Wireless charging module

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