CN108063040B - Transmitting coil structure of automobile wireless charging system - Google Patents
Transmitting coil structure of automobile wireless charging system Download PDFInfo
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- CN108063040B CN108063040B CN201711454981.7A CN201711454981A CN108063040B CN 108063040 B CN108063040 B CN 108063040B CN 201711454981 A CN201711454981 A CN 201711454981A CN 108063040 B CN108063040 B CN 108063040B
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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
- H01F27/02—Casings
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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
- H01F27/08—Cooling; Ventilating
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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
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
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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
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
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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
- H01F27/08—Cooling; Ventilating
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
-
- 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
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
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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
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A transmitting coil structure of a wireless charging system for an automobile, comprising: transmitting coil Assembly and method for manufacturing the same a heat sink assembly; the transmitting coil assembly includes: the transmitting coil comprises a transmitting coil upper cover, a transmitting coil winding, a transmitting coil guard plate, a first transmitting coil wiring port and a second transmitting coil wiring port; the upper cover of the transmitting coil is a mounting body of the transmitting coil winding and also serves as an upper cover, a special spiral groove is formed on the upper cover, the device is used for installing a transmitting coil winding, and the lower end of the coil winding is provided with a transmitting coil guard board for sealing and protecting a coil; the wireless charging system capable of cooling the coil according to different regions and using different cooling mediums adopts an optimized structural design, and scientific operation modeling is adopted, so that the coil can be cooled according to different regions and using different cooling mediums, the generated heat of the coil in the charging process is greatly reduced, and the potential safety hazard caused by overheating of the coil is solved.
Description
Technical Field
The invention relates to the technical field of transmitting coil structures, in particular to a transmitting coil structure of an automobile wireless charging system.
Background
In the current world, automobiles are taken as a modern transportation means, are gradually popularized to thousands of households, become an important component of our family life and bring a lot of convenience for our daily quick travel, but the only energy used by the current automobiles is petroleum products, and the engine cannot completely and thoroughly burn gasoline, so that a large amount of automobile tail gas is discharged into the atmosphere, and the living environment of human beings is seriously polluted;
the tail gas discharged by the fuel oil automobile mainly contains tens of harmful substances such as carbon monoxide, hydrocarbon, nitrogen oxide, heavy metal lead and the like, is one of the important reasons for haze generation, directly causes diseases in respiratory system and blood circulation, has serious damage to livers, has great adverse effect on human health, and also causes serious pollution to our environment when the automobile benefits human. The use of new energy automobiles to replace fuel automobiles is necessarily a trend, and the country has established the development targets of new energy automobiles, and will gradually stop the production of fuel automobiles, and it is believed that the age of new energy automobiles to replace fuel automobiles will come soon;
the electric automobile uses electric power as energy, uses a motor as driving force, has no exhaust emission, has no pollution and influence on the atmospheric environment, can benefit and avoid the harm, and is beneficial to human beings to the maximum extent;
at present, the electric automobile mainly uses a battery as an energy storage device, the electric motor is provided with energy to supply the electric motor with energy, therefore, when the battery is discharged to a critical point, the battery needs to be recharged; at present, two charging modes of electric automobiles exist: the first is wired charging and the second is wireless charging.
And (3) wired charging: the charging operation is completed through the connection of the charging gun and the charging interface of the automobile, and is consistent with the method of automobile refueling, but only the fuel is changed into electricity, because a power supply cable is connected with the charging gun, the charging gun is called wired charging.
And (3) wireless charging: the automobile is charged in an electromagnetic induction mode, the transmitting device is installed on the ground, the receiving device is installed on the automobile, energy is transferred between the transmitting device and the receiving device through electromagnetic induction, and the battery charging is completed, and the wireless charging is the mainstream technology developed at present because of non-contact charging, but the wireless charging at present also has some insurmountable problems:
the wireless charging of the automobile is characterized in that an energy exchange system is formed by a transmitting coil and a receiving coil, the electric automobile has high power and long endurance capacity, and the number of assembled battery packs is large, so that in order to ensure the normal running and the vehicle outgoing rate of the automobile, a high-power charging system is required to ensure the charging time and the charging efficiency of the battery, when the charging power is increased, the current passing through the coil as energy transfer is synchronously increased, the temperature of the coil is correspondingly increased, the higher the power is, the higher the temperature is, the temperature of the coil is increased, the valuable electric energy is wasted, the fire hazard in the charging process is greatly increased, and the problem of how to effectively control the temperature is the wireless charging coil to be solved is solved;
disclosure of Invention
Aiming at the problems existing in the prior art, the invention aims to provide a transmitting coil structure of an automobile wireless charging system, and the structure adopts an optimized structural design, scientifically models running, cools the coil according to different regions and different cooling mediums, greatly reduces heat generated by the coil in the charging process, and solves the potential safety hazard caused by overheating of the coil;
to achieve the above object, the present invention provides a transmitting coil structure of a wireless charging system for an automobile, comprising: a transmitting coil assembly and a heat sink assembly;
further, the transmitting coil assembly includes: the transmitting coil comprises a transmitting coil upper cover, a transmitting coil winding, a transmitting coil guard plate, a first transmitting coil wiring port and a second transmitting coil wiring port;
as an illustration, the upper cover of the transmitting coil is a mounting body of the transmitting coil winding and also has the function of an upper cover, a special spiral groove is formed on the upper cover for mounting the transmitting coil winding, and a transmitting coil guard plate is arranged at the lower end of the coil winding for sealing and protecting the coil;
as an illustration, the transmit coil winding: the method comprises the steps of adopting a special exciting wire to manufacture and process, transmitting directional electromagnetic radiation waves after being powered on, providing radiation energy for a receiving coil, spirally winding a transmitting coil winding in a spiral groove on the upper cover of the transmitting coil according to a certain direction and a certain number of turns, and installing a transmitting coil guard plate below the transmitting coil winding for sealing and protecting the coil;
as an illustration, the transmit coil shield: the lower cover plate is used as a transmitting coil, is used for sealing and protecting a coil winding, and the lower end of the lower cover plate is arranged in a groove at the upper end of the radiator assembly and is in contact with ferrite;
as an illustration, the first and second transmitting wire connection ports are functional structures on the transmitting coil assembly, and are plug-in components of the coil winding and the external electrical terminal;
further, the heat sink assembly includes: the heat radiator comprises an outer heat radiating fin, an inner reflow cavity, a first reflow cavity interface, a second reflow cavity interface, reflow cavity cleaning holes, a radiator mounting platform and an upper end groove;
further, ferrite is arranged in the groove at the upper end, a transmitting coil assembly is arranged on the ferrite, and an inner hexagonal fixing bolt is used for fixing the coil and the radiator assembly; forming a complete transmit coil functional system. The radiator assembly provides a mounting base for the whole transmitting coil assembly and the system at the same time;
as an illustration, the outer heat sink is a functional structure on the heat sink assembly, is a heat dissipation component extending out of the heat sink assembly, absorbs heat stored on the substrate, directly contacts with air, and performs heat exchange by forming convection with the air, so as to achieve the purpose of heat dissipation;
as an illustration, the inner heat sink is a functional structure on the heat sink assembly, is a heat dissipation component extending out of the inner reflow chamber, absorbs heat stored on the substrate, directly contacts with the liquid or gaseous heat dissipation medium, and achieves the purpose of heat dissipation by heat exchange with the liquid or gaseous heat dissipation medium;
as an illustration, the internal reflux cavity is a functional structure on the radiator, is in a hollow serpentine layout and is distributed in the radiator body, and the cavity is filled with gas or liquid flowing at high speed, so that the heat exchange speed is increased, and the purpose of radiating heat for the coil and ferrite is achieved;
as an illustration, the first reflow cavity interface is a functional structure on the radiator, and is used in cooperation with the second reflow cavity interface, so as to install a special pipeline, convey the heat dissipation medium for the inner reflow cavity, and complete the heat dissipation cycle of the cold and hot state medium;
as an illustration, the cleaning hole of the reflux cavity is a functional structure on the radiator and is used for cleaning the reflux cavity, so that dust in the reflux cavity and impurities left in the reflux cavity during casting are flushed out, and the reflux cavity is in a sealed state during normal use;
as an illustration, the radiator mounting platform is a functional structure on the radiator assembly and is arranged at four corners of the radiator; there are two functions: the first horizontal regulator is used for installing a radiator, and is used for adjusting the horizontal state of the coil during ground installation; the radiator is arranged on the ground structure, so that the stability of installation is improved;
as an illustration, the radiator level adjuster is installed at four corners of the radiator assembly for adjusting the level state of the coil;
as an example, the ferrite is installed in a groove of a radiator, prevents electromagnetic waves from radiating downward, meanwhile, electromagnetic waves are reflected upwards to reduce radiation consumption, so that the solar energy heat generating device is a main heating element;
for better explanation of the design principle of the present invention, three cooling modes will be briefly described as follows:
and (3) a natural cooling mode: the lower part of the radiator assembly is provided with radiating fins exposed in the air, the radiating fins are arranged in a line, ventilation is convenient, and the radiator assembly is generally used in areas with lower ambient temperature or under the condition of lower coil power, and related equipment which does not need forced circulation for radiating is naturally cooled, so that the radiator assembly is one mode which saves resources and cost most;
the liquid cooling mode is as follows: forced cooling is used under the condition that the environment temperature is high or the coil power is high, and under the condition that the natural cooling mode or the air cooling mode cannot meet the heat dissipation requirement, the hollow inner reflux cavity of the radiator is filled with liquid medium, meanwhile, the inner radiating fins are arranged in the liquid medium, and under the driving of the circulating water pump, the liquid medium flows in the inner reflux cavity of the radiator, so that the heat and the liquid medium are circularly exchanged, and the heat dissipation work is completed;
wind cooling mode: forced cooling is used under the condition that the environment temperature is high or the coil power is high, and under the condition that a natural cooling mode cannot meet the heat dissipation requirement or a liquid cooling mode is inconvenient to use, under the driving of an air pump, cold air flowing at high speed is filled in a hollow inner reflux cavity of a radiator, and meanwhile, an inner radiating fin is arranged in the air, so that the air flows in the inner reflux cavity of the radiator, the heat and the air are circularly exchanged, and the heat dissipation work is completed;
the invention has the beneficial effects that:
1. the radiator is of a hollow design with an inner cavity, and radiating fins are arranged in the radiator, so that the radiating capacity of the radiator is increased and reduced by controlling the flow change of a radiating medium.
2. The coil and the radiator are designed independently, the modules are combined, and under the condition that the radiator is unchanged, the coils with various different transmitting powers and the radiator can be combined and installed to form a new wireless charging transmitting coil system;
3. the radiator design structure supports various cooling modes, including a natural cooling mode, a liquid cooling mode and a forced air cooling mode. Wherein the liquid cooling mode and the forced air cooling mode are internal cooling heat dissipation. A cooling mode can be reasonably selected according to different regions and seasons;
4. because the liquid cooling mode and the forced air cooling mode are adopted for internal cooling type heat dissipation, the external part of the radiator is not provided with rotating parts such as a cooling fan and the like, and the work of cleaning dust and replacing a heat dissipation fan is avoided.
5. The radiator system is suitable for being used under various working conditions and in different regions;
6. the system has a light structure, is assembled on site, and is convenient for packaging and transportation;
drawings
FIG. 1 is a schematic diagram showing the overall structure of a transmitting coil structure of a wireless charging system for an automobile according to the present invention
FIG. 2 is a schematic diagram of a radiator assembly of a transmitting coil structure of a wireless charging system for a vehicle according to the present invention
FIG. 3 is a schematic diagram showing the installation structure of a transmitting coil structure of a wireless charging system for an automobile according to the present invention
Detailed Description
Referring now to fig. 1-3, a transmitting coil structure for a wireless charging system for an automobile, comprising: a transmitting coil assembly 010 and a radiator assembly 020;
further, the transmitting coil assembly includes: a transmission line upper cover 011, a transmission line winding 012, a transmission line guard plate 013, a first transmission line wiring port 014, a second transmission line wiring port 015;
as an illustration, the upper cover 011 of the transmitting coil winding 012 is an installation body and also has the function of an upper cover, a special spiral groove is formed on the upper cover for installing the transmitting coil winding 012, and a transmitting coil guard plate 013 is installed at the lower end of the coil winding for sealing and protecting the coil;
as an illustration, the transmitting coil winding 012 is manufactured by a special exciting wire, after being powered on, emits directional electromagnetic radiation wave to provide radiant energy for the receiving coil, the transmitting coil winding 012 is spirally wound in a spiral groove of the transmitting coil upper cover 011 according to a certain direction and number of turns, and a transmitting coil guard plate 013 is arranged below the transmitting coil winding 012 and used for sealing the protecting coil;
as an illustration, the transmitter coil guard 013 is used as a lower cover plate of the transmitter coil for sealing and protecting the coil winding, and the lower end of the transmitter coil guard is installed in a groove at the upper end of the radiator assembly 020 and is in contact with ferrite;
as an illustration, the first transmitting wire connection port 014 and the second transmitting wire connection port 015 are functional structures on the transmitting coil assembly 010, and are plug-in components of the coil winding and the external electrical terminal;
further, the radiator assembly 020 includes: an outer heat sink 021, an inner heat sink 022, an inner reflow chamber 023, a first reflow chamber interface 024, a second reflow chamber interface 025, reflow chamber cleaning holes 026, a heat sink mounting platform 027, a heat sink level adjuster 028, an upper end groove;
further, ferrite is arranged in the groove at the upper end, a transmitting coil assembly 010 is arranged on the ferrite, and the coil and the radiator assembly are fixed by using an inner hexagonal fixing bolt 040; forming a complete transmit coil functional system. The radiator assembly simultaneously provides a mounting base for the whole transmitting coil assembly 010 and the system;
as an illustration, the external heat-dissipating fin 021 is a functional structure on the heat-dissipating assembly 020, is a heat-dissipating component extending out of the heat-dissipating body, absorbs heat stored on the substrate, directly contacts with air, and exchanges heat with air by convection, thereby achieving the purpose of heat dissipation;
as an illustration, the inner cooling fin 022 is a functional structure on the radiator assembly 020, is a cooling component extending out of the inner reflux cavity 023, absorbs heat stored on the substrate, is in direct contact with the liquid cooling medium, and achieves the purpose of cooling by heat exchange with the liquid cooling medium;
as an illustration, the internal reflux cavity 023 is a functional structure on the radiator assembly 020, is in a hollow serpentine layout, is distributed in the radiator body, is filled with gas or liquid flowing at high speed, accelerates the heat exchange, and achieves the purpose of radiating heat for the coil and the ferrite;
as an illustration, the first reflow chamber interface 024 is a functional structure on the radiator assembly 020, and is used in cooperation with the second reflow chamber interface 025, so as to install a special pipeline, convey the heat dissipation medium for the inner reflow chamber 023, and complete the heat dissipation cycle of the cold and hot state medium;
as an illustration, the return cavity cleaning hole 026 is a functional structure on the radiator assembly 020, and is used for cleaning the return cavity, purging dust in the return cavity and impurities remained in the return cavity during casting, and being in a sealing state during normal use;
as an illustration, the heat sink mounting platform 027 is a functional structure on the heat sink assembly 020, laid out at the four corners of the heat sink; there are two functions: the first radiator level regulator 028 is used for adjusting the level state of the coil during ground installation; the radiator is arranged on the ground structure, so that the stability of installation is improved;
as an illustration, the radiator level adjuster 028 is installed at four corners of the radiator assembly 020 for adjusting the level state of the coil;
as an illustration, the ferrite 030 is installed in the groove of the radiator assembly 020, and prevents the electromagnetic wave from radiating downwards, and at the same time, reflects the electromagnetic wave upwards to reduce radiation consumption, so that the ferrite is a main heating component;
for better explanation of the design principle of the present invention, three cooling modes will be briefly described as follows:
and (3) a natural cooling mode: the lower part of the radiator assembly 020 is provided with radiating fins exposed to air, the radiating fins are arranged in a line, ventilation is convenient, and the radiator assembly is generally used in areas with lower ambient temperature or under the condition of lower coil power, and related equipment which does not need forced circulation and heat radiation is the most resource and cost-saving mode;
the liquid cooling mode is as follows: forced cooling is used under the condition that the environment temperature is high or the coil power is high, and under the condition that the natural cooling mode or the air cooling mode cannot meet the heat dissipation requirement, the hollow inner reflux cavity of the radiator is filled with liquid medium, meanwhile, the inner radiating fins are arranged in the liquid medium, the liquid medium flows in the inner reflux cavity of the radiator under the drive of the circulating pump, the heat and the liquid medium are circularly exchanged, and the heat dissipation work is completed;
wind cooling mode: forced cooling is used under the condition that the environment temperature is high or the coil power is high, and under the condition that a natural cooling mode cannot meet the heat dissipation requirement or a liquid cooling mode is inconvenient to use, under the driving of an air pump, cold air flowing at high speed is filled in a hollow inner reflux cavity of a radiator, and meanwhile, an inner radiating fin is arranged in the air, so that the air flows in the inner reflux cavity of the radiator, the heat and the air are circularly exchanged, and the heat dissipation work is completed;
the radiator is of a hollow design with a hollow cavity, radiating fins are arranged in the radiator, and the radiating capacity of the radiator is increased and reduced by controlling the flow change of a radiating medium; the coil and the radiator are designed independently, the modules are combined, and under the condition that the radiator is unchanged, the coils with various different transmitting powers and the radiator can be combined and installed to form a new wireless charging transmitting coil system; the radiator design structure supports various cooling modes, including a natural cooling mode, a liquid cooling mode and a forced air cooling mode. Wherein the liquid cooling mode and the forced air cooling mode are internal cooling heat dissipation. A cooling mode can be reasonably selected according to different regions and seasons; because the inner Leng San type heat dissipation of the liquid cooling mode and the forced air cooling mode is adopted, the external part of the radiator is not provided with rotating parts such as a cooling fan and the like, so that the work of cleaning dust and replacing a heat dissipation fan is avoided; the radiator system is suitable for being used under various working conditions and in different regions; the system has a light structure, is assembled on site, and is convenient for packaging and transportation;
the above disclosure is only one specific embodiment of the present application, but the present application is not limited thereto, and any changes that can be thought by those skilled in the art should fall within the protection scope of the present application.
Claims (3)
1. A transmitting coil structure of a wireless charging system for an automobile, comprising: a transmitting coil assembly and a heat sink assembly; the transmitting coil assembly includes: the transmitting coil comprises a transmitting coil upper cover, a transmitting coil winding, a transmitting coil guard plate, a first transmitting coil wiring port and a second transmitting coil wiring port;
the upper cover of the transmitting coil is a mounting body of the transmitting coil winding and also serves as an upper cover, a special spiral groove is formed in the upper cover and is used for mounting the transmitting coil winding, and a transmitting coil guard plate is arranged at the lower end of the coil winding and is used for sealing and protecting the coil;
the transmitting coil winding is manufactured and processed by adopting a special exciting wire, emits directional electromagnetic radiation waves after being powered on, provides radiant energy for the receiving coil, is spirally wound in a spiral groove on the upper cover of the transmitting coil according to a certain direction and a certain number of turns, and is provided with a transmitting coil guard plate below for sealing and protecting the coil;
the heat sink assembly includes: the heat radiator comprises an outer heat radiating fin, an inner reflux cavity, a first reflux cavity interface, a second reflux cavity interface, reflux cavity cleaning holes, a heat radiator mounting platform, a heat radiator horizontal regulator and an upper end groove;
the outer radiating fin is a functional structure on the radiator assembly, is a radiating part extending out of the radiator assembly, absorbs heat stored on the substrate, directly contacts with air, and performs heat exchange by forming convection with the air;
the inner radiating fin is a functional structure on the radiator assembly, is a radiating part extending out of the inner reflux cavity, absorbs heat stored on the substrate, is in direct contact with the liquid radiating medium, and performs heat exchange with the liquid radiating medium;
the internal reflux cavity is a functional structure on the radiator, is in a hollow serpentine layout and is distributed in the radiator body, and the cavity is filled with high-speed flowing gas or liquid so as to accelerate the heat exchange and achieve the purpose of radiating the coil and ferrite;
the first reflux cavity interface is a functional structure on the radiator, is matched with the second reflux cavity interface for use, is used for installing a special pipeline, conveying a heat dissipation medium for the inner reflux cavity and completing heat dissipation circulation of cold and hot mediums;
the cleaning holes of the reflux cavity are functional structures on the radiator and are used for cleaning the reflux cavity, so that dust in the reflux cavity and impurities left in the reflux cavity during casting are flushed out, and the reflux cavity is in a sealing state during normal use;
the radiator mounting platform is a functional structure on the radiator assembly and is arranged at four corners of the radiator;
the radiator horizontal regulators are arranged at four corners of the radiator and used for regulating the horizontal state of the coil;
ferrite is arranged in the groove at the upper end, a transmitting coil assembly is arranged on the ferrite, and the coil and the radiator assembly are fixed by using an inner hexagonal fixing bolt; the radiator assembly provides a mounting base for the entire transmit coil assembly and system at the same time.
2. The transmitter coil structure of claim 1, wherein the transmitter coil shield is used as a lower cover plate of the transmitter coil for sealing and protecting the coil winding, and the lower end of the transmitter coil shield is installed in a groove at the upper end of the radiator assembly and is in contact with the ferrite.
3. The transmitting coil structure of a wireless charging system for an automobile according to claim 1, wherein the ferrite is installed in a recess of a radiator to prevent electromagnetic waves from radiating downwards, and at the same time, reflecting electromagnetic waves upwards to reduce radiation consumption is a main heating element.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108448732B (en) * | 2018-06-13 | 2024-04-26 | 合肥有感科技有限责任公司 | Wireless power supply system |
| CN111668009A (en) * | 2019-03-05 | 2020-09-15 | 永德利硅橡胶科技(深圳)有限公司 | Plane composite board with wireless charging function |
| CN111959303B (en) * | 2020-08-20 | 2022-10-28 | 国网浙江省电力有限公司台州供电公司 | New energy automobile buries formula wireless electric pile that fills |
| CN113131625A (en) * | 2021-05-08 | 2021-07-16 | 西华大学 | Novel water-cooling wireless electric energy transmission device adopting hollow copper pipe |
| CN113571287B (en) * | 2021-07-23 | 2023-03-14 | 横店集团东磁股份有限公司 | Wireless charging module |
| CN113985969B (en) * | 2021-12-27 | 2022-04-01 | 深圳市赛金科技有限公司 | Wireless charging bin for earphone of notebook computer with multi-form self-adaptive fitting |
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