WO2014178645A1 - Method for manufacturing receiving antenna for wireless charger and receiving antenna for wireless charger manufactured using same - Google Patents

Method for manufacturing receiving antenna for wireless charger and receiving antenna for wireless charger manufactured using same Download PDF

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Publication number
WO2014178645A1
WO2014178645A1 PCT/KR2014/003849 KR2014003849W WO2014178645A1 WO 2014178645 A1 WO2014178645 A1 WO 2014178645A1 KR 2014003849 W KR2014003849 W KR 2014003849W WO 2014178645 A1 WO2014178645 A1 WO 2014178645A1
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WO
WIPO (PCT)
Prior art keywords
electromagnetic shielding
antenna
shielding sheet
wireless charger
embedding
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PCT/KR2014/003849
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French (fr)
Korean (ko)
Inventor
정재호
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(주)씨제이텍
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Publication of WO2014178645A1 publication Critical patent/WO2014178645A1/en

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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
    • H02J50/005—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
    • 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
    • H01F27/288—Shielding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/04—Screened antennas
    • 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
    • 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
    • H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields

Definitions

  • the present invention relates to a method for manufacturing a receiver antenna for a wireless charger, and a receiver antenna for a wireless charger manufactured using the same, and more particularly, a method for manufacturing a receiver antenna for a wireless charger capable of simultaneously performing wireless recognition and wireless charging, and manufacturing using the same. It relates to a receiver antenna for a wireless charger.
  • a radio frequency identification (RFID) technology is generally used to provide an antenna and a reader using radio waves for information embedded in an electronic tag. It is a technology that recognizes information through a non-contact method, and uses radio frequency to recognize information from a short distance as well as a long distance.
  • RFID radio frequency identification
  • NFC Near Filed Communication
  • the NFC is widely used in not only payment, but also widely used in supermarkets or general stores to transmit goods information, travel information for visitors, transportation, and access control locks, and greatly expands the use of smart phones.
  • a portable terminal such as a smartphone equipped with an RFID antenna for NFC or NFC is an electronic device in which a high density of circuits and elements are integrated, and the possibility of generating and inducing electromagnetic waves is increasing, which is a wireless recognition of information. It may act as a factor of deterioration of performance such as disturbing the communication for wireless communication. Therefore, electromagnetic wave is to increase the radio recognition performance by suppressing the interference of electromagnetic waves by shielding and absorbing electromagnetic waves on the RFID or NFC radio recognition antenna of the mobile terminal. The trend is to use absorbers attached.
  • This wireless charging technology is a technology that uses a radio wave to charge a battery built in a mobile terminal without connecting a charger for a mobile terminal to an electrical outlet.
  • a radio energy transceiver When a radio energy transceiver is installed in a home, office, or hotel, the radio wave flows from this device. Since electric energy is loaded into the portable terminal, it is a technology that enables the wireless charging of the portable terminal battery anytime and anywhere.
  • a wireless charging antenna having a coil for receiving radio waves for wireless charging should be disposed in the portable terminal, and an electromagnetic wave absorber is also used to increase the performance of wireless charging.
  • the electromagnetic wave absorber grafted to the antenna for wireless charging and the electromagnetic wave absorber grafted to the antenna for wireless recognition have a difference in the characteristics of the frequency according to the wireless charging and the radio recognition, so there is a difference in the material composition as well as the composition of the material.
  • an electromagnetic wave absorber by a ferromagnetic material or a sintered body having a high permeability is applied.
  • a wireless recognition antenna for NFC and a coil for receiving a radio wave for wireless charging are bonded to each other by using an adhesive on the upper part of the electromagnetic wave absorber, but in the case of the NFC wireless recognition antenna, the production lead time is long and the etching is performed. Due to the pollution material is generated, the coil for the radio wave reception for wireless charging has to go through a separate winding process, a problem arises that the cost increases.
  • the wireless charger for wireless charging of a mobile terminal such as a smart phone, as shown in Figure 1
  • a wireless charging pad 10 of the pad-type structure for placing the portable terminal 1 with a battery
  • the magnet 20 is embedded on the wireless charging pad 10 to hold and fix the position of the mobile terminal.
  • the magnet 20 is embedded on the wireless charging pad 10 provided for wirelessly charging the battery of the mobile terminal 1, and a radio to which a general electromagnetic wave absorber made of a material having high permeability is generally applied.
  • the magnetic force generated by the magnet of the wireless charging pad 10 adversely affects the electromagnetic wave absorber provided on the portable terminal 1 side, thereby properly managing the role of increasing the wireless charging performance.
  • the function to cancel the original function of the electromagnetic wave absorber such as not to greatly reduce the wireless charging efficiency or provide a wireless charging function at all.
  • the present invention was created in order to solve the above problems, but in one portable terminal to enable the two functions of wireless recognition (NFC) and wireless charging, so that each function can be stably exhibited without mutual interference.
  • the purpose of the present invention is to provide a method of manufacturing a receiver antenna for a wireless charger, which can reduce costs by eliminating the etching process of the NFC antenna, the winding process and the bonding process of the receiver coil, and a receiver antenna for the wireless charger manufactured using the same. .
  • the present invention provides a method for manufacturing a receiver antenna for a wireless charger used to wirelessly charge a mobile terminal, comprising: preparing an electromagnetic shielding sheet to block electromagnetic waves; Embedding a near field communication (NFC) antenna used in a near field communication method on an upper outer circumferential surface of the electromagnetic shielding sheet; Embedding a receiving coil for receiving electric power on the electromagnetic shielding sheet to apply electric power to the mobile terminal; And
  • NFC Near Field Communication
  • the NFC (Near Field Communication) antenna and the receiving coil provides a receiver antenna manufacturing method for a wireless charger comprising the step of enclosing the upper portion of the electromagnetic shielding sheet embedded in the upper (embedded) with a protective sheet.
  • embedding of the NFC (Near Field Communication) antenna and the receiver coil may use ultrasonic fusion, and the receiver coil may include a plurality of self-melt enamelled copper wires.
  • a Litz wire formed by twisting a wire may be used, and the self-adhesive enamelled copper wire may be formed of a copper copper wire, an insulating layer surrounding the copper wire, and a self-sealing layer surrounding an outer circumferential surface of the insulating layer. have.
  • the sheet may further include a sheet.
  • the present invention is a receiver antenna for a wireless charger used to wirelessly charge a mobile terminal, the electromagnetic shielding sheet for blocking electromagnetic waves;
  • An NFC (Near Field Communication) antenna embedded in an upper outer circumferential surface of the electromagnetic shielding sheet and used in a near field communication method; And it is embedded in the upper portion of the electromagnetic shielding sheet (Embedding), and provides a receiver antenna for a wireless charger including a receiving coil for receiving power to apply power to the portable terminal.
  • NFC Near Field Communication
  • the NFC (Near Field Communication) antenna and the receiving coil is provided on the upper part of the electromagnetic shielding sheet embedded (Embedded), and further comprises a protective sheet surrounding the electromagnetic shielding sheet It may include.
  • An adhesive layer may be provided between the protective sheet and the electromagnetic shielding sheet, and the receiving coil may use a Litz wire formed by twisting a plurality of self-adhesive enamelled copper wires.
  • the self-adhesive enameled copper wire may be used.
  • the conductor may be made of copper wire, an insulating layer surrounding the copper wire, and a self-fusion layer surrounding an outer circumferential surface of the insulating layer, and further comprising a sheet of synthetic resin material laminated on the electromagnetic shielding sheet. can do.
  • the NFC antenna and the receiving coil is directly embedded in the upper portion of the electromagnetic shielding sheet by using an ultrasonic welding method, the working time can be shortened and the cost can be reduced compared to the conventional method of bonding using an adhesive. Can be.
  • 1 is an exemplary view showing a wireless charger having a general wireless charging pad.
  • FIG. 2 is a block diagram showing a procedure for manufacturing a receiver antenna for a wireless charger according to an embodiment of the present invention.
  • FIG 3 is an exploded perspective view showing a receiver antenna for a wireless charger according to an embodiment of the present invention.
  • FIG. 4 is a cross-sectional view of the bonding state of FIG.
  • FIG. 5 is a view illustrating a state in which an NFC antenna is embedded on the electromagnetic shielding sheet illustrated in FIG. 3.
  • FIG. 6 is a diagram illustrating a state in which a receiving coil is embedded on the electromagnetic shielding sheet illustrated in FIG. 5.
  • FIG. 7 is a diagram illustrating a self-melt enamelled copper wire constituting a litz wire used as a receiving coil.
  • FIG. 2 is a block diagram showing a procedure for manufacturing a receiver antenna for a wireless charger according to an embodiment of the present invention
  • Figure 3 is an exploded perspective view showing a receiver antenna for a wireless charger according to an embodiment of the present invention
  • 4 is a cross-sectional view of the coupling state of FIG. 2
  • FIG. 5 is a view illustrating a state in which an NFC antenna is embedded in an upper portion of the electromagnetic shielding sheet illustrated in FIG. 3
  • FIG. 6 is a receiving coil on an upper portion of the electromagnetic shielding sheet illustrated in FIG. 5.
  • FIG. 7 is a figure which shows the self-adhesive enamelled copper wire which comprises the litz wire used as a receiving coil.
  • the method of manufacturing a receiver antenna for a wireless charger is a method of manufacturing the receiver antenna 100 for a wireless charger used to wirelessly charge a portable terminal. 110, preparing (S100), embedding (Embedding) the NFC antenna 120 (S200), embedding (Embedding) the receiving coil 130 (S300), and the protective sheet 140 Wrapping step (S400).
  • the preparing of the electromagnetic shielding sheet 110 is a step of preparing the electromagnetic shielding sheet 110 that has a function of absorbing and shielding electromagnetic waves generated from the mobile terminal.
  • the electromagnetic shielding sheet 110 is made of a magnetic material, and has a sheet shape by extruding a raw material containing magnetic powder and a binder, and the electromagnetic shielding sheet 110 may include a ferrite sheet. have.
  • the electromagnetic shielding sheet 110 includes a ferrite sheet
  • the magnetic flux absorbs the magnetic flux, collects the magnetic flux on the electromagnetic shielding sheet 110, and transmits the magnetic flux back to the NFC antenna 120 and the reception coil 130. It will improve the performance of.
  • a sheet 112 made of synthetic resin may be laminated on the electromagnetic shielding sheet 110. Since the sheet 112 is laminated on the electromagnetic shielding sheet 110, embedding of the NFC antenna 120 and the receiving coil 130 to be described later may be easily performed.
  • the sheet 112 is preferably a synthetic resin such as polyimide, polycarbonate, PET, and the like.
  • NFC Near Field Communication
  • the NFC antenna 120 is an antenna used in a short-range communication method, the NFC antenna 120 can be transmitted and received up to 10 cm, the NFC antenna 120 is the upper portion of the electromagnetic shielding sheet 110 It is preferred to be embedded along the outer perimeter.
  • the embedding (Embedding) of the NFC antenna 120 preferably uses an ultrasonic welding method, the ultrasonic welding method for embedding the NFC antenna 120 on the electromagnetic shielding sheet 110 will be described later. It will be described in the step (S300) for bonding the receiving coil 130 to be.
  • the receiving coil 130 serves to apply power to the mobile terminal by receiving power, and the receiving coil 130 is embedded on the electromagnetic shielding sheet 110 inside the NFC antenna 120. .
  • the receiving coil 130 is also embedded in the upper portion of the electromagnetic shielding sheet 110 using the ultrasonic welding method in the same manner as the NFC antenna 120.
  • the ultrasonic welding method converts electrical energy from a power input into mechanical vibration energy through a vibrator and then presses the workpiece through a horn to generate strong frictional heat instantaneously to the joint surface, and thus the joint surface is melted and bonded. Production is possible and no adhesive is required.
  • the receiving coil 130 is a Litz wire formed by twisting a plurality of self-adhesive enameled copper wires 132. Since the litz wire is formed by twisting a plurality of self-adhesive enameled copper wires 132, the strength of the receiving coil 130 is increased.
  • the self-adhesive enameled copper wire 132 includes a copper wire 133, an insulating layer 135, and a self-sealing layer 137.
  • the copper wire 133 is a conductor
  • the insulating layer 135 is intended to insulate the copper wire 133 which is a conductor from the outside, surrounds the copper wire 133 so as not to be exposed to the outside, and the self-sealing layer.
  • Reference numeral 137 is coated on the outside of the insulating layer 135 like a covering of an electric wire to surround the outer circumferential surface of the insulating layer.
  • the self-fusion layer 137 is melted when embedded in the upper portion of the electromagnetic wave shielding sheet 110 by the ultrasonic welding method to increase the adhesive force, and the self-fusion layer 137 and the electromagnetic shielding sheet 110 As the surface cools, it sticks with higher strength.
  • the self-adhesive layer 137 is preferably formed including one or more selected from the group consisting of polyamide, epoxy, butyl al and polyester.
  • the pollutant is generated in the etching process and the cleaning process by performing the etching operation, but the NFC antenna 120 is directly embedded on the electromagnetic shielding sheet 110 using the ultrasonic welding method. By doing so, it is possible to prevent the generation of pollutants.
  • the NFC antenna 120 and the receiving coil 130 are sequentially bonded. Instead of being able to join at the same time has the advantage of reducing the work time.
  • the electromagnetic shielding sheet 110 After embedding the NFC antenna 120 and the receiving coil 130 on the electromagnetic shielding sheet 110 (S200, S300), the electromagnetic shielding sheet 110 is wrapped with a protective sheet 140. It goes through the step (S400).
  • the protective sheet 140 serves to protect the electromagnetic shielding sheet 110, the NFC antenna 120, and the receiving coil 130 from external factors such as heat, moisture, and moisture, and the protective sheet 140. ), The electromagnetic shielding sheet 110, the NFC antenna 120 and the receiving coil 130 is protected from heat, moisture, and moisture by wrapping the electromagnetic shielding sheet 110.
  • the receiver antenna 100 for a wireless charger is used to wirelessly charge a portable terminal, an electromagnetic shielding sheet 110, and an NFC antenna 120.
  • a receiving coil 130 and may further include a protective sheet 140.
  • the electromagnetic shielding sheet 110 serves to shield electromagnetic waves by absorbing electromagnetic waves generated from a mobile terminal, and the electromagnetic shielding sheet 110 is made of a magnetic material and extrudes a raw material containing a magnetic powder and a binder. It has a sheet form.
  • the electromagnetic shielding sheet 110 preferably includes a ferrite sheet. Since the electromagnetic shielding sheet 100 includes a ferrite sheet, the magnetic flux absorbs magnetic flux, collects magnetic flux in the electromagnetic shielding sheet 110, and transfers the magnetic flux back to the NFC antenna 120 and the receiving coil 130. It has the advantage of further improving the performance.
  • a sheet 112 made of synthetic resin may be laminated on the electromagnetic shielding sheet 110. Since the sheet 112 is laminated on the electromagnetic shielding sheet 110, embedding of the NFC antenna 120 and the receiving coil 130 to be described later may be easily performed.
  • the sheet 112 is preferably a synthetic resin such as polyimide, polycarbonate, PET, and the like.
  • the NFC antenna 120 is embedded in the upper portion of the electromagnetic shielding sheet 110.
  • the NFC antenna 120 is an antenna used in a short-range communication method, the NFC antenna 120 can be transmitted and received up to 10 cm, the NFC antenna 120 is the upper portion of the electromagnetic shielding sheet 110 It is preferably embedded along the outer perimeter.
  • the NFC antenna 120 is preferably embedded in the upper portion of the electromagnetic shielding sheet 110 using the ultrasonic welding method.
  • the ultrasonic welding method converts the electrical energy of the power input into mechanical vibration energy through a vibrator and then presses the workpiece through a horn to generate strong frictional heat instantaneously on the joint surface, and thus the joint surface is melted and bonded. Production is possible and no adhesive is required.
  • the receiving coil 130 is embedded above the electromagnetic shielding sheet 110 in which the NFC antenna 120 is embedded.
  • the receiving coil 130 serves to apply power to the mobile terminal by receiving power, and the receiving coil 130 is embedded on the electromagnetic shielding sheet 110 inside the NFC antenna 120. It is preferable.
  • the receiving coil 130 is also embedded by using an ultrasonic welding method, and the NFC antenna 120 and the receiving coil 130 by directly embedding using the ultrasonic welding method, compared to the conventional method of bonding using an adhesive
  • the work time can be shortened and the cost can be reduced.
  • the receiving coil 130 is a Litz wire formed by twisting a plurality of self-adhesive enameled copper wires 132.
  • the self-adhesive enameled copper wire 132 includes a copper wire 133, an insulating layer 135, and a self-sealing layer 137.
  • the copper wire 133 is a conductor
  • the insulating layer 135 is intended to insulate the copper wire 133 which is a conductor from the outside, surrounds the copper wire 133 so as not to be exposed to the outside, and the self-sealing layer.
  • Reference numeral 137 is coated on the outside of the insulating layer 135 like a covering of an electric wire to surround the outer circumferential surface of the insulating layer.
  • the self-fusion layer 137 is melted when embedded in the upper portion of the electromagnetic wave shielding sheet 110 by the ultrasonic welding method to increase the adhesive force, and the self-fusion layer 137 and the electromagnetic shielding sheet 110 As the surface cools, it sticks with higher strength.
  • the self-adhesive layer 137 is preferably formed including one or more selected from the group consisting of polyamide, epoxy, butyl al and polyester.
  • the NFC antenna 120 and the receiving coil 130 are not sequentially bonded. At the same time it can be bonded to have the advantage of shortening the working time.
  • the protective sheet 140 serves to protect the electromagnetic shielding sheet 110, the NFC antenna 120, and the receiving coil 130 from external factors such as heat, moisture, and moisture, and the electromagnetic shielding sheet ( It is preferably provided at the top of the (110).
  • the electromagnetic shielding sheet 110, the NFC antenna 120 and the receiving coil 130 may be protected from heat, moisture, and moisture by providing the electromagnetic shielding sheet 110 with the upper portion of the protective sheet 140. do.
  • the adhesive layer 150 may be disposed between the electromagnetic shielding sheet 110 and the protective sheet 140.
  • the adhesive layer 150 may be configured by applying an adhesive or using a double-sided tape. Since the adhesive layer 150 is provided between the electromagnetic shielding sheet 110 and the protective sheet 140, the NFC antenna 120 and the receiving coil 130 bonded to the upper portion of the electromagnetic shielding sheet 110. And it can further enhance the bonding force of the electromagnetic shielding sheet 110.
  • the NFC antenna 120 and the receiving coil 130 are directly embedded using the ultrasonic welding method on the electromagnetic shielding sheet 110, the working time can be shortened compared to the conventional method of bonding using an adhesive. And, the cost can be reduced, and in the case of the NFC antenna 120, the pollutant is generated in the etching process and the cleaning process by performing an etching operation, but the NFC antenna 120 by using the ultrasonic fusion method of the electromagnetic shielding sheet Embedding directly on top can reduce costs and prevent the generation of pollutants.
  • the present invention can be used in the receiver antenna for a wireless charger.

Abstract

The present invention provides a method for manufacturing a receiving antenna for a wireless charger and the receiving antenna for a wireless charger manufactured using the same, and the method for manufacturing a receiving antenna for a wireless charger which is used to wirelessly charge a portable terminal comprises the steps of: preparing an electromagnetic shielding sheet for blocking electromagnetic waves; embedding a near field communication (NFC) antenna used for near field communication on the outer circumferential surface of the upper part of the electromagnetic shielding sheet; embedding, on the upper part of the electromagnetic shielding sheet, a receiving coil for receiving power so as to apply the power to the portable terminal; and encasing, with a protection sheet, the upper part of the electromagnetic shielding sheet having the NFC antenna and the receiving coil embedded on the upper part thereof. Accordingly, it is possible to reduce production costs by directly embedding an NFC antenna on the upper part of an electromagnetic shielding sheet through ultrasonic welding, and to prevent the generation of contaminants.

Description

무선충전기용 수신부 안테나 제조방법 및 이를 이용해 제조된 무선충전기용 수신부 안테나Method of manufacturing a receiver antenna for a wireless charger and a receiver antenna for a wireless charger manufactured using the same
본 발명은 무선충전기용 수신부 안테나 제조방법 및 이를 이용해 제조된 무선충전기용 수신부 안테나에 관한 것으로, 더욱 상세하게는 무선인식과 무선충전을 동시에 수행할 수 있는 무선충전기용 수신부 안테나 제조방법 및 이를 이용해 제조된 무선충전기용 수신부 안테나에 관한 것이다.The present invention relates to a method for manufacturing a receiver antenna for a wireless charger, and a receiver antenna for a wireless charger manufactured using the same, and more particularly, a method for manufacturing a receiver antenna for a wireless charger capable of simultaneously performing wireless recognition and wireless charging, and manufacturing using the same. It relates to a receiver antenna for a wireless charger.
대한민국 등록 특허 제10-1177302호에 기재된 배경기술을 참조하면, 일반적으로 무선인식(Radio Frequency Identification; 이하 "RFID"라 한다.) 기술은 전자태그에 내장된 정보를 전파를 이용하여 안테나와 리더를 통해 비(非)접촉 방식으로 정보를 인식하는 기술로서, 무선 주파수를 활용하여 짧은 거리는 물론 먼 거리에서도 정보를 인식할 수 있도록 한 것이다.Referring to the background art described in Korean Patent Registration No. 10-1177302, a radio frequency identification (RFID) technology is generally used to provide an antenna and a reader using radio waves for information embedded in an electronic tag. It is a technology that recognizes information through a non-contact method, and uses radio frequency to recognize information from a short distance as well as a long distance.
또한, 최근 스마트폰의 보급과 함께 RFID 기술 중의 하나인 근거리 무선통신(Near Filed Communication; 이하 "NFC"라 한다.) 기술이 새롭게 적용 및 차세대 기술로 각광을 받고 있는데, 이 NFC는 정보의 읽기뿐만 아니라 쓰기도 가능한 양방향 통신을 지원할 수 있는 것으로서, 모바일 결제와 파일 공유, 티켓 예매 등을 할 수 있다.Recently, with the spread of smart phones, Near Filed Communication (NFC) technology, which is one of RFID technologies, is emerging as a new application and next generation technology. In addition, it can support two-way communication that can also be written, and can be used for mobile payments, file sharing, and ticket reservation.
특히, 이 NFC는 결제뿐만 아니라 슈퍼마켓이나 일반 상점에서 물품정보나 방문객을 위한 여행정보 전송, 교통, 출입통제 잠금장치 등에 광범위하게 활용할 수 있는 기술로서, 스마트폰의 활용 영역을 대폭 확대시켜 주고 있다.In particular, the NFC is widely used in not only payment, but also widely used in supermarkets or general stores to transmit goods information, travel information for visitors, transportation, and access control locks, and greatly expands the use of smart phones.
이와 같이, RFID나 NFC 용도의 무선인식용 안테나가 탑재되는 스마트폰 등의 휴대단말기는 회로의 고밀도화 및 소자들이 집적화된 전자기기로서, 전자파의 발생 및 유도 가능성이 증대되고 있고, 이는 정보의 무선인식을 위한 통신을 교란하는 등 성능 저하의 요인으로 작용될 수 있으므로, 휴대단말기의 RFID나 NFC용 무선인식 안테나 측에 전자파를 차폐 및 흡수하여 전자파의 간섭을 억제시킴으로써 무선인식 성능을 증대시켜주기 위한 전자파흡수체를 부착하여 사용하고 있는 추세이다.As such, a portable terminal such as a smartphone equipped with an RFID antenna for NFC or NFC is an electronic device in which a high density of circuits and elements are integrated, and the possibility of generating and inducing electromagnetic waves is increasing, which is a wireless recognition of information. It may act as a factor of deterioration of performance such as disturbing the communication for wireless communication. Therefore, electromagnetic wave is to increase the radio recognition performance by suppressing the interference of electromagnetic waves by shielding and absorbing electromagnetic waves on the RFID or NFC radio recognition antenna of the mobile terminal. The trend is to use absorbers attached.
한편, 스마트폰 등의 도입과 함께 휴대단말기를 사용하는 사용자의 편의성을 더욱 높여줄 수 있도록 하기 위해 무선충전 기술의 접목이 시도되고 있다.On the other hand, grafting of wireless charging technology has been attempted to increase the convenience of users who use a mobile terminal with the introduction of a smart phone.
이러한 무선충전 기술은 전기 콘센트에 휴대단말기용 충전기를 연결하지 않고도 전파를 활용하여 휴대단말기에 내장된 배터리를 충전하는 기술인데, 집이나 사무실, 호텔 등에 전파에너지 송수신기기를 설치하면 이 기기에서 흘러나오는 전파에 전기에너지가 실려 휴대단말기로 주입되기 때문에 언제 어디서나 무선으로 휴대단말기의 배터리 충전을 수행할 수 있게 하는 기술이다.This wireless charging technology is a technology that uses a radio wave to charge a battery built in a mobile terminal without connecting a charger for a mobile terminal to an electrical outlet. When a radio energy transceiver is installed in a home, office, or hotel, the radio wave flows from this device. Since electric energy is loaded into the portable terminal, it is a technology that enables the wireless charging of the portable terminal battery anytime and anywhere.
이를 위해, 휴대단말기에는 무선충전용 전파 수신을 위한 코일을 갖는 무선충전용 안테나가 배설되어야 하며, 이 또한 무선충전의 성능을 증대시켜주기 위해서 전자파흡수체가 부착 사용되고 있다.For this purpose, a wireless charging antenna having a coil for receiving radio waves for wireless charging should be disposed in the portable terminal, and an electromagnetic wave absorber is also used to increase the performance of wireless charging.
이때, 무선충전용 안테나에 접목되는 전자파흡수체와 무선인식용 안테나에 접목되는 전자파흡수체는 무선충전과 무선인식에 따른 주파수의 특성에 차이가 있으므로 재질적 구성에서의 차이는 물론 재료의 조성에도 차이가 있게 되는데, 보통 투자율이 높은 강자성 물질 또는 소결체에 의한 전자파흡수체가 적용되고 있다.At this time, the electromagnetic wave absorber grafted to the antenna for wireless charging and the electromagnetic wave absorber grafted to the antenna for wireless recognition have a difference in the characteristics of the frequency according to the wireless charging and the radio recognition, so there is a difference in the material composition as well as the composition of the material. In general, an electromagnetic wave absorber by a ferromagnetic material or a sintered body having a high permeability is applied.
하지만, RFID나 NFC 등의 무선인식 기능과 배터리 무선충전 기능을 스마트폰 등의 휴대단말기에 모두 탑재함으로써 이들을 겸하여 사용할 수 있도록 하는 최근 일련의 기술적 연구 및 시도들은, 여러 가지 제약사항들에 의해 쉽게 제안되지 않고 있으며 실용화 단계에 이르지 못하고 있다.However, a recent series of technical studies and attempts to use both RFID and NFC wireless recognition functions and battery wireless charging functions in mobile terminals such as smartphones to use them together are easily proposed by various constraints. It is not being used, and it is not reaching the practical stage.
기존에는 NFC 용도의 무선인식용 안테나와 무선충전용 전파 수신을 위한 코일을 전자파흡수체의 상부에 접착제를 이용하여 접합하였으나, NFC 용도의 무선인식용 안테나의 경우 에칭 방식으로 생산 리드 시간이 길고, 에칭을 함으로 인하여 공해물질이 발생하고, 무선충전용 전파 수신을 위한 코일은 별도의 권선공정을 거쳐야 함으로 인하여 원가가 상승하는 문제점이 발생하였다.Conventionally, a wireless recognition antenna for NFC and a coil for receiving a radio wave for wireless charging are bonded to each other by using an adhesive on the upper part of the electromagnetic wave absorber, but in the case of the NFC wireless recognition antenna, the production lead time is long and the etching is performed. Due to the pollution material is generated, the coil for the radio wave reception for wireless charging has to go through a separate winding process, a problem arises that the cost increases.
또한, 스마트폰과 같은 휴대단말기의 무선충전을 위한 무선충전기는 도 1에 나타낸 바와 같이, 배터리가 내장된 휴대단말기(1)를 올려놓기 위한 패드형 구조의 무선충전패드(10)가 구비되고, 이 무선충전패드(10) 상에는 휴대단말기의 위치를 잡아주고 고정시켜 주기 위해 자석(20)이 내장되어 있다.In addition, the wireless charger for wireless charging of a mobile terminal such as a smart phone, as shown in Figure 1, is provided with a wireless charging pad 10 of the pad-type structure for placing the portable terminal 1 with a battery, The magnet 20 is embedded on the wireless charging pad 10 to hold and fix the position of the mobile terminal.
이와 같이, 휴대단말기(1)의 배터리 무선충전을 위해 구비되는 무선충전패드(10) 상에 자석(20)이 내장되어 있고, 일반적으로 투자율이 높은 재료에 의해 만들어지는 통상의 전자파흡수체가 적용된 무선충전 안테나를 갖는 휴대단말기(1)의 경우, 무선충전패드(10)의 자석에서 발생되는 자력이 휴대단말기(1) 측에 구비된 전자파흡수체에 악영향을 미쳐 무선충전 성능을 증대시키는 역할을 제대로 감당하지 못하게 하는 등 전자파흡수체의 본래의 기능을 상쇄시키는 작용을 하게 되므로 무선충전효율을 크게 저하시키거나 무선충전 기능을 전혀 제공하지 못하게 되는 문제점이 있었다.As described above, the magnet 20 is embedded on the wireless charging pad 10 provided for wirelessly charging the battery of the mobile terminal 1, and a radio to which a general electromagnetic wave absorber made of a material having high permeability is generally applied. In the case of the portable terminal 1 having the charging antenna, the magnetic force generated by the magnet of the wireless charging pad 10 adversely affects the electromagnetic wave absorber provided on the portable terminal 1 side, thereby properly managing the role of increasing the wireless charging performance. There is a problem in that the function to cancel the original function of the electromagnetic wave absorber, such as not to greatly reduce the wireless charging efficiency or provide a wireless charging function at all.
본 발명은 상기와 같은 문제점을 해결하기 위하여 창출된 것으로서, 하나의 휴대단말기에서 무선인식(NFC)과 무선충전의 2가지 기능을 겸할 수 있도록 하되 각각의 기능을 상호 간에 간섭없이 안정적으로 발휘할 수 있도록 하며, NFC 안테나의 에칭공정과 수신 코일의 권선공정 및 접착공정을 제거하여 원가를 절감할 수 있도록 하는 무선충전기용 수신부 안테나 제조방법 및 이를 이용해 제조된 무선충전기용 수신부 안테나를 제공하는데 그 목적이 있다.The present invention was created in order to solve the above problems, but in one portable terminal to enable the two functions of wireless recognition (NFC) and wireless charging, so that each function can be stably exhibited without mutual interference. The purpose of the present invention is to provide a method of manufacturing a receiver antenna for a wireless charger, which can reduce costs by eliminating the etching process of the NFC antenna, the winding process and the bonding process of the receiver coil, and a receiver antenna for the wireless charger manufactured using the same. .
상기한 목적을 달성하기 위하여 본 발명은, 휴대단말기를 무선으로 충전시키기 위해 사용되는 무선충전기용 수신부 안테나 제조방법에 있어서, 전자파를 차단시키는 전자파 차폐 시트를 준비하는 단계; 상기 전자파 차폐 시트의 상부 외측 둘레면에 근거리 통신 방식에 사용되는 NFC(Near Field Communication) 안테나를 임베딩(Embedding)시키는 단계; 상기 전자파 차폐 시트의 상부에 전력을 수신하여 상기 휴대단말기에 전력을 인가하는 수신 코일을 임베딩(Embedding)시키는 단계; 및 상기 NFC(Near Field Communication) 안테나와 상기 수신 코일이 상부에 임베딩(Embedding) 된 상기 전자파 차폐 시트의 상부를 보호시트로 감싸는 단계를 포함하는 무선충전기용 수신부 안테나 제조방법을 제공한다.In order to achieve the above object, the present invention provides a method for manufacturing a receiver antenna for a wireless charger used to wirelessly charge a mobile terminal, comprising: preparing an electromagnetic shielding sheet to block electromagnetic waves; Embedding a near field communication (NFC) antenna used in a near field communication method on an upper outer circumferential surface of the electromagnetic shielding sheet; Embedding a receiving coil for receiving electric power on the electromagnetic shielding sheet to apply electric power to the mobile terminal; And The NFC (Near Field Communication) antenna and the receiving coil provides a receiver antenna manufacturing method for a wireless charger comprising the step of enclosing the upper portion of the electromagnetic shielding sheet embedded in the upper (embedded) with a protective sheet.
본 발명에 따른 무선충전기용 수신부 안테나 제조방법에 있어서, 상기 NFC(Near Field Communication) 안테나와 상기 수신 코일의 임베딩(Embedding)은 초음파 융착을 이용할 수 있고, 상기 수신 코일은 복수개의 자기 융착성 에나멜 동선을 꼬아서 형성한 리츠(Litz) 와이어가 사용될 수 있으며, 상기 자기 융착성 에나멜 동선은 도체인 동선과, 상기 동선을 둘러싸는 절연층과, 상기 절연층의 외주면을 둘러싸는 자기융착층으로 이루어질 수 있다.In the method of manufacturing a receiver antenna for a wireless charger according to the present invention, embedding of the NFC (Near Field Communication) antenna and the receiver coil may use ultrasonic fusion, and the receiver coil may include a plurality of self-melt enamelled copper wires. A Litz wire formed by twisting a wire may be used, and the self-adhesive enamelled copper wire may be formed of a copper copper wire, an insulating layer surrounding the copper wire, and a self-sealing layer surrounding an outer circumferential surface of the insulating layer. have.
상기 전자파 차폐 시트의 상부에 상기 NFC(Near Field Communication) 안테나를 임베딩(Embedding)시키는 단계와 상기 수신 코일을 임베딩(Embedding)시키는 단계는 동시에 이루어질 수 있고, 상기 전자파 차폐 시트의 상부에 합지되는 합성수지재질의 시트(Sheet)를 더 포함할 수 있다.Embedding the NFC (Near Field Communication) antenna on the top of the electromagnetic shielding sheet and embedding the receiving coil (Embedding) may be performed at the same time, the synthetic resin material laminated on the upper portion of the electromagnetic shielding sheet The sheet may further include a sheet.
또한, 본 발명은 휴대단말기를 무선으로 충전시키기 위해 사용되는 무선충전기용 수신부 안테나에 있어서, 전자파를 차단시키는 전자파 차폐 시트; 상기 전자파 차폐 시트의 상부 외측 둘레면에 임베딩(Embedding)되며, 근거리 통신 방식에 사용되는 NFC(Near Field Communication) 안테나; 및 상기 전자파 차폐 시트의 상부에 임베딩(Embedding)되며, 전력을 수신하여 상기 휴대단말기에 전력을 인가하는 수신 코일을 포함하는 무선충전기용 수신부 안테나를 제공한다.In addition, the present invention is a receiver antenna for a wireless charger used to wirelessly charge a mobile terminal, the electromagnetic shielding sheet for blocking electromagnetic waves; An NFC (Near Field Communication) antenna embedded in an upper outer circumferential surface of the electromagnetic shielding sheet and used in a near field communication method; And it is embedded in the upper portion of the electromagnetic shielding sheet (Embedding), and provides a receiver antenna for a wireless charger including a receiving coil for receiving power to apply power to the portable terminal.
본 발명에 따른 무선충전기용 수신부 안테나에 있어서, 상기 NFC(Near Field Communication) 안테나와 상기 수신 코일이 임베딩(Embedding)된 상기 전자파 차폐 시트의 상부에 구비되며, 상기 전자파 차폐 시트를 감싸는 보호시트를 더 포함할 수 있다.In the receiving part antenna for a wireless charger according to the present invention, the NFC (Near Field Communication) antenna and the receiving coil is provided on the upper part of the electromagnetic shielding sheet embedded (Embedded), and further comprises a protective sheet surrounding the electromagnetic shielding sheet It may include.
상기 보호시트와 상기 전자파 차폐 시트의 사이에는 접착층이 구비될 수 있고, 상기 수신 코일은 복수개의 자기 융착성 에나멜 동선을 꼬아서 형성한 리츠(Litz) 와이어가 사용될 수 있으며, 상기 자기 융착성 에나멜 동선은 도체인 동선과, 상기 동선을 둘러싸는 절연층과, 상기 절연층의 외주면을 둘러싸는 자기융착층으로 이루어질 수 있으며, 상기 전자파 차폐 시트의 상부에 합지되는 합성수지재질의 시트(Sheet)를 더 포함할 수 있다.An adhesive layer may be provided between the protective sheet and the electromagnetic shielding sheet, and the receiving coil may use a Litz wire formed by twisting a plurality of self-adhesive enamelled copper wires. The self-adhesive enameled copper wire may be used. The conductor may be made of copper wire, an insulating layer surrounding the copper wire, and a self-fusion layer surrounding an outer circumferential surface of the insulating layer, and further comprising a sheet of synthetic resin material laminated on the electromagnetic shielding sheet. can do.
본 발명에 따른 무선충전기용 수신부 안테나 제조방법 및 이를 이용해 제조된 무선충전기용 수신부 안테나는 다음과 같은 효과를 가진다.Method of manufacturing a receiver antenna for a wireless charger according to the present invention and a receiver antenna for a wireless charger manufactured using the same has the following effects.
첫째, 전자파 차폐 시트의 상부에 NFC 안테나와 수신 코일이 초음파 융착 방식을 이용하여 직접 임베딩(Embedding)됨으로 인하여 접착제를 이용하여 접합하는 기존의 방식에 비해 작업시간을 단축시킬 수 있고, 원가를 절감시킬 수 있다.First, since the NFC antenna and the receiving coil is directly embedded in the upper portion of the electromagnetic shielding sheet by using an ultrasonic welding method, the working time can be shortened and the cost can be reduced compared to the conventional method of bonding using an adhesive. Can be.
둘째, NFC 안테나의 경우 에칭 작업을 수행하여야 함으로써 식각 공정 및 세척 공정에서 공해물질이 발생하였으나, 초음파 융착 방식을 이용하여 NFC 안테나를 전자파 차폐 시트의 상부에 직접 임베딩(Embedding)함으로 인하여 원가를 절감하고, 공해물질의 발생을 방지할 수 있다.Second, in the case of NFC antenna, the pollutant occurred in the etching process and the cleaning process by etching, but the cost was saved by directly embedding NFC antenna on the electromagnetic shielding sheet using ultrasonic welding method. Therefore, it is possible to prevent the generation of pollutants.
도 1은 일반적인 무선충전패드를 갖는 무선충전기를 나타낸 예시도이다.1 is an exemplary view showing a wireless charger having a general wireless charging pad.
도 2는 본 발명의 일 실시 예에 따른 무선충전기용 수신부 안테나를 제조하는 하기 위한 순서를 도시한 블록도이다.2 is a block diagram showing a procedure for manufacturing a receiver antenna for a wireless charger according to an embodiment of the present invention.
도 3은 본 발명의 일 실시 예에 따른 무선충전기용 수신부 안테나를 나타낸 분해 사시도이다.3 is an exploded perspective view showing a receiver antenna for a wireless charger according to an embodiment of the present invention.
도 4는 도 3의 결합상태 단면도이다.4 is a cross-sectional view of the bonding state of FIG.
도 5는 도 3에 도시된 전자파 차폐 시트의 상부에 NFC 안테나가 임베딩되는 상태를 도시한 도면이다.FIG. 5 is a view illustrating a state in which an NFC antenna is embedded on the electromagnetic shielding sheet illustrated in FIG. 3.
도 6은 도 5에 도시된 전자파 차폐 시트의 상부에 수신 코일이 임베딩되는 상태를 도시한 도면이다.FIG. 6 is a diagram illustrating a state in which a receiving coil is embedded on the electromagnetic shielding sheet illustrated in FIG. 5.
도 7은 수신 코일로 사용되는 리츠 와이어를 구성하는 자기 융착성 에나멜 동선을 도시한 도면이다.FIG. 7 is a diagram illustrating a self-melt enamelled copper wire constituting a litz wire used as a receiving coil.
이하, 첨부된 도면을 참조하여 본 발명에 따른 바람직한 실시 예를 상세히 설명하기로 한다. 이에 앞서 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니 되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여, 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the ordinary or dictionary meanings, and the inventors properly define the concept of terms in order to explain their invention in the best way. Based on the principle that it can be, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.
도 2는 본 발명의 일 실시 예에 따른 무선충전기용 수신부 안테나를 제조하는 하기 위한 순서를 도시한 블록도, 도 3은 본 발명의 일 실시 예에 따른 무선충전기용 수신부 안테나를 나타낸 분해 사시도, 도 4는 도 2의 결합상태 단면도, 도 5는 도 3에 도시된 전자파 차폐 시트의 상부에 NFC 안테나가 임베딩되는 상태를 도시한 도면, 도 6은 도 5에 도시된 전자파 차폐 시트의 상부에 수신 코일이 임베딩되는 상태를 도시한 도면, 도 7은 수신 코일로 사용되는 리츠 와이어를 구성하는 자기 융착성 에나멜 동선을 도시한 도면이다.2 is a block diagram showing a procedure for manufacturing a receiver antenna for a wireless charger according to an embodiment of the present invention, Figure 3 is an exploded perspective view showing a receiver antenna for a wireless charger according to an embodiment of the present invention; 4 is a cross-sectional view of the coupling state of FIG. 2, FIG. 5 is a view illustrating a state in which an NFC antenna is embedded in an upper portion of the electromagnetic shielding sheet illustrated in FIG. 3, and FIG. 6 is a receiving coil on an upper portion of the electromagnetic shielding sheet illustrated in FIG. 5. The figure which shows this embedded state, FIG. 7 is a figure which shows the self-adhesive enamelled copper wire which comprises the litz wire used as a receiving coil.
도 2를 참조하면, 본 발명의 일 실시 예에 따른 무선충전기용 수신부 안테나 제조방법은 휴대단말기를 무선으로 충전시키기 위해 사용되는 무선충전기용 수신부 안테나(100)를 제조하는 방법으로, 전자파 차폐 시트(110)를 준비하는 단계(S100)와, NFC 안테나(120)를 임베딩(Embedding)시키는 단계(S200)와, 수신 코일(130)을 임베딩(Embedding)시키는 단계(S300)와, 보호시트(140)를 감싸는 단계(S400)를 포함한다.Referring to FIG. 2, the method of manufacturing a receiver antenna for a wireless charger according to an embodiment of the present invention is a method of manufacturing the receiver antenna 100 for a wireless charger used to wirelessly charge a portable terminal. 110, preparing (S100), embedding (Embedding) the NFC antenna 120 (S200), embedding (Embedding) the receiving coil 130 (S300), and the protective sheet 140 Wrapping step (S400).
상기 전자파 차폐 시트(110)를 준비하는 단계(S100)은 휴대단말기에서 발생되는 전자파의 흡수 및 차폐의 기능을 발휘하는 전자파 차폐 시트(110)를 준비하는 단계이다. 상기 전자파 차폐 시트(110)는 자성물질로 구성되는데, 자성분말과 바인더가 배합된 원료를 압출시킴으로 인해 시트형태를 갖게 되며, 상기 전자파 차폐 시트(110)는 페라이트 시트(Ferrite Sheet)를 포함할 수 있다.The preparing of the electromagnetic shielding sheet 110 (S100) is a step of preparing the electromagnetic shielding sheet 110 that has a function of absorbing and shielding electromagnetic waves generated from the mobile terminal. The electromagnetic shielding sheet 110 is made of a magnetic material, and has a sheet shape by extruding a raw material containing magnetic powder and a binder, and the electromagnetic shielding sheet 110 may include a ferrite sheet. have.
상기 전자파 차폐 시트(110)가 페라이트 시트(Ferrite Sheet)를 포함함으로 인하여 자속을 흡수하여 상기 전자파 차폐 시트(110)에 자속을 모으고 이를 다시 전달하므로 후술되는 NFC 안테나(120)와 수신 코일(130)의 성능을 더욱 향상시켜주게 된다.Since the electromagnetic shielding sheet 110 includes a ferrite sheet, the magnetic flux absorbs the magnetic flux, collects the magnetic flux on the electromagnetic shielding sheet 110, and transmits the magnetic flux back to the NFC antenna 120 and the reception coil 130. It will improve the performance of.
상기 전자파 차폐 시트(110)의 상부에는 합성수지 재질의 시트(Sheet;112)가 합지될 수 있다. 상기 전자파 차폐 시트(110)의 상부에 상기 시트(112)가 합지됨으로 인하여 후술되는 NFC 안테나(120)와 수신 코일(130)의 임베딩(Embedding)이 용이하게 이루어지게 된다. 상기 시트(112)는 폴리이미드(Polyimide), 폴리카보네이트(Polycarbonate), PET 등과 같은 합성수지재가 사용되는 것이 바람직하다.A sheet 112 made of synthetic resin may be laminated on the electromagnetic shielding sheet 110. Since the sheet 112 is laminated on the electromagnetic shielding sheet 110, embedding of the NFC antenna 120 and the receiving coil 130 to be described later may be easily performed. The sheet 112 is preferably a synthetic resin such as polyimide, polycarbonate, PET, and the like.
상기 전자파 차폐 시트(110)가 준비되면 상기 전자파 차폐 시트(110)의 상부에 NFC(Near Field Communication) 안테나(120)를 임베딩(Embedding)시키는 단계(S200)를 거치게 된다.When the electromagnetic shielding sheet 110 is prepared, the step (S200) of embedding the NFC (Near Field Communication) antenna 120 on the upper portion of the electromagnetic shielding sheet 110 (S200).
상기 NFC 안테나(120)는 근거리 통신 방식에 사용되는 안테나로서, 상기 NFC 안테나(120)는 최대 10㎝까지 송신과 수신이 가능하며, 상기 NFC 안테나(120)는 상기 전자파 차폐 시트(110)의 상부 외측 둘레를 따라 임베딩(Embedding)되는 것이 바람직하다.The NFC antenna 120 is an antenna used in a short-range communication method, the NFC antenna 120 can be transmitted and received up to 10 cm, the NFC antenna 120 is the upper portion of the electromagnetic shielding sheet 110 It is preferred to be embedded along the outer perimeter.
상기 NFC 안테나(120)를 임베딩(Embedding)시키는 단계(S200)는 초음파 융착 방식을 이용하는 것이 바람직하며, 상기 NFC 안테나(120)를 상기 전자파 차폐 시트(110)의 상부에 임베딩시키는 초음파 융착 방식은 후술되는 수신 코일(130)을 접합시키는 단계(S300)에서 설명하기로 한다.The embedding (Embedding) of the NFC antenna 120 (S200) preferably uses an ultrasonic welding method, the ultrasonic welding method for embedding the NFC antenna 120 on the electromagnetic shielding sheet 110 will be described later. It will be described in the step (S300) for bonding the receiving coil 130 to be.
상기 전자파 차폐 시트(110)의 상부에 상기 NFC 안테나(120)를 임베딩시키는 단계(S200)를 거치고 난 후, 상기 전자파 차폐 시트(110)의 상부에 수신 코일(130)을 임베딩시키는 단계(S300)를 수행하게 된다.After passing through the embedding of the NFC antenna 120 on the electromagnetic shielding sheet 110 (S200), embedding the receiving coil 130 on the electromagnetic shielding sheet 110 (S300). Will be performed.
상기 수신 코일(130)은 전력을 수신하여 휴대단말기에 전력을 인가하는 역할을 하며, 상기 수신 코일(130)은 상기 NFC 안테나(120)의 내측에서 상기 전자파 차폐 시트(110)의 상부에 임베딩 된다. 상기 수신 코일(130) 역시 상기 NFC 안테나(120)와 동일하게 초음파 융착 방식을 이용하여 상기 전자파 차폐 시트(110)의 상부에 임베딩 된다.The receiving coil 130 serves to apply power to the mobile terminal by receiving power, and the receiving coil 130 is embedded on the electromagnetic shielding sheet 110 inside the NFC antenna 120. . The receiving coil 130 is also embedded in the upper portion of the electromagnetic shielding sheet 110 using the ultrasonic welding method in the same manner as the NFC antenna 120.
상기 초음파 융착 방식은 전원입력의 전기적에너지를 진동자를 통해 기계적 진동에너지로 변환된 후 혼(Horn)을 통해 가공물에 가압하면 접합면에 순간적으로 강력한 마찰열을 발생시켜 접합면이 용해 접착되는 방식으로 다량 생산이 가능하고, 접착제가 필요 없게 된다.The ultrasonic welding method converts electrical energy from a power input into mechanical vibration energy through a vibrator and then presses the workpiece through a horn to generate strong frictional heat instantaneously to the joint surface, and thus the joint surface is melted and bonded. Production is possible and no adhesive is required.
상기 수신 코일(130)은 복수개의 자기 융착성 에나멜 동선(132)을 꼬아서 형성한 리츠(Litz) 와이어가 사용된다. 상기 리츠 와이어가 복수개의 자기 융착성 에나멜 동선(132)을 꼬아서 형성함으로 인하여 상기 수신 코일(130)의 강도가 높아지게 된다. 도 7을 참조하면, 상기 자기 융착성 에나멜 동선(132)은 동선(133)과, 절연층(135)과, 자기융착층(137)으로 이루어진다.The receiving coil 130 is a Litz wire formed by twisting a plurality of self-adhesive enameled copper wires 132. Since the litz wire is formed by twisting a plurality of self-adhesive enameled copper wires 132, the strength of the receiving coil 130 is increased. Referring to FIG. 7, the self-adhesive enameled copper wire 132 includes a copper wire 133, an insulating layer 135, and a self-sealing layer 137.
상기 동선(133)은 도체이며, 상기 절연층(135)은 도체인 상기 동선(133)을 외부로부터 절연시키는 것을 목적으로 하며, 상기 동선(133)이 외부로 노출되지 않도록 둘러싸고, 상기 자기융착층(137)은 상기 절연층(135)의 외부에 전기 전선의 피복과 같이 입혀져 상기 절연층의 외주면을 둘러싼다.The copper wire 133 is a conductor, and the insulating layer 135 is intended to insulate the copper wire 133 which is a conductor from the outside, surrounds the copper wire 133 so as not to be exposed to the outside, and the self-sealing layer. Reference numeral 137 is coated on the outside of the insulating layer 135 like a covering of an electric wire to surround the outer circumferential surface of the insulating layer.
상기 자기융착층(137)은 초음파 융착 방식에 의해 상기 전자파 차폐 시트(110)의 상부에 임베딩 시 융해되어 접착력이 증대되고, 융해된 상기 자기융착층(137)과 상기 전자파 차폐 시트(110)의 표면이 식으면서 보다 강도 높게 고착된다.The self-fusion layer 137 is melted when embedded in the upper portion of the electromagnetic wave shielding sheet 110 by the ultrasonic welding method to increase the adhesive force, and the self-fusion layer 137 and the electromagnetic shielding sheet 110 As the surface cools, it sticks with higher strength.
상기 자기융착층(137)은 폴리아미드, 에폭시, 부틸알 및 폴리에스테르로 이루어진 군으로부터 선택된 하나 또는 복수개를 포함하여 형성되는 것이 바람직하다.The self-adhesive layer 137 is preferably formed including one or more selected from the group consisting of polyamide, epoxy, butyl al and polyester.
상기 전자파 차폐 시트(110)의 상부에 NFC 안테나(120)와 수신 코일(130)을 초음파 융착 방식을 이용하여 직접 임베딩시킴으로 인하여 접착제를 이용하여 접합하는 기존의 방식에 비해 작업시간을 단축시킬 수 있고, 원가를 절감시킬 수 있는 장점을 가진다.By directly embedding the NFC antenna 120 and the receiving coil 130 in the upper portion of the electromagnetic shielding sheet 110 by using an ultrasonic welding method, it is possible to shorten the working time compared to the conventional method of bonding using an adhesive. This has the advantage of reducing cost.
기존에는 NFC 안테나(120)의 경우 에칭 작업을 수행하여야 함으로써 식각 공정 및 세척 공정에서 공해물질이 발생하였으나, 초음파 융착 방식을 이용하여 NFC 안테나(120)를 전자파 차폐 시트(110)의 상부에 직접 임베딩시킴으로 인하여 공해물질의 발생을 방지할 수 있게 된다.Conventionally, in the case of the NFC antenna 120, the pollutant is generated in the etching process and the cleaning process by performing the etching operation, but the NFC antenna 120 is directly embedded on the electromagnetic shielding sheet 110 using the ultrasonic welding method. By doing so, it is possible to prevent the generation of pollutants.
또한, 상기 전자파 차폐 시트(110)의 상부에 NFC 안테나(120)와 수신 코일(130)을 초음파 융착 방식을 이용하여 임베딩시킴으로써, 상기 NFC 안테나(120)와 수신 코일(130)을 순차적으로 접합시키는 것이 아니라 동시에 접합시킬 수 있어 작업시간을 단축시킬 수 있는 장점을 갖게 된다.In addition, by embedding the NFC antenna 120 and the receiving coil 130 in the upper portion of the electromagnetic shielding sheet 110 by using an ultrasonic welding method, the NFC antenna 120 and the receiving coil 130 are sequentially bonded. Instead of being able to join at the same time has the advantage of reducing the work time.
상기 NFC 안테나(120)와 수신 코일(130)을 상기 전자파 차폐 시트(110)의 상부에 임베딩시키는 단계(S200,S300)를 거친 후에는 상기 전자파 차폐 시트(110)를 보호 시트(140)로 감싸는 단계(S400)를 거치게 된다.After embedding the NFC antenna 120 and the receiving coil 130 on the electromagnetic shielding sheet 110 (S200, S300), the electromagnetic shielding sheet 110 is wrapped with a protective sheet 140. It goes through the step (S400).
상기 보호 시트(140)는 상기 전자파 차폐 시트(110), 상기 NFC 안테나(120) 및 상기 수신 코일(130)을 열이나 수분 및 습기 등의 외부 요인으로부터 보호하는 역할을 하며, 상기 보호 시트(140)가 상기 전자파 차폐 시트(110)를 감쌈으로 인하여 열이나 수분 및 습기로부터 상기 전자파 차폐 시트(110), 상기 NFC 안테나(120) 및 상기 수신 코일(130)이 보호되게 된다.The protective sheet 140 serves to protect the electromagnetic shielding sheet 110, the NFC antenna 120, and the receiving coil 130 from external factors such as heat, moisture, and moisture, and the protective sheet 140. ), The electromagnetic shielding sheet 110, the NFC antenna 120 and the receiving coil 130 is protected from heat, moisture, and moisture by wrapping the electromagnetic shielding sheet 110.
상기의 단계(S100 내지 S400)를 거침으로 인하여 근거리 통신이 가능하면서 무선으로 휴대단말기를 충전시킬 수 있는 무선충전기용 수신부 안테나(100)를 제조하게 된다.By passing through the steps (S100 to S400) it is possible to manufacture a wireless charger receiver antenna 100 that can be short-range communication and wirelessly charge the mobile terminal.
도 3 내지 도 7을 참조하면, 본 발명의 일 실시 예에 따른 무선충전기용 수신부 안테나(100)는 휴대단말기를 무선으로 충전시키기 위해 사용되는 것으로, 전자파 차폐 시트(110)와, NFC 안테나(120)와, 수신 코일(130)을 포함하고, 보호 시트(140)를 더 포함할 수 있다.3 to 7, the receiver antenna 100 for a wireless charger according to an embodiment of the present invention is used to wirelessly charge a portable terminal, an electromagnetic shielding sheet 110, and an NFC antenna 120. ) And a receiving coil 130, and may further include a protective sheet 140.
상기 전자파 차폐 시트(110)는 휴대단말기에서 발생되는 전자파의 흡수하여 전자파를 차폐시키는 역할을 하며, 상기 전자파 차폐 시트(110)는 자성물질로 구성되어 자성분말과 바인더가 배합된 원료를 압출시킴으로 인해 시트형태를 갖게 된다.The electromagnetic shielding sheet 110 serves to shield electromagnetic waves by absorbing electromagnetic waves generated from a mobile terminal, and the electromagnetic shielding sheet 110 is made of a magnetic material and extrudes a raw material containing a magnetic powder and a binder. It has a sheet form.
상기 전자파 차폐 시트(110)는 페라이트 시트(Ferrite Sheet)를 포함하는 것이 바람직하다. 상기 전자파 차폐 시트(100)가 페라이트 시트(Ferrite Sheet)를 포함함으로 인하여 자속을 흡수하여 상기 전자파 차폐 시트(110)에 자속을 모으고 이를 다시 전달하므로 후술되는 NFC 안테나(120)와 수신 코일(130)의 성능을 더욱 향상시켜주게 되는 장점을 가진다.The electromagnetic shielding sheet 110 preferably includes a ferrite sheet. Since the electromagnetic shielding sheet 100 includes a ferrite sheet, the magnetic flux absorbs magnetic flux, collects magnetic flux in the electromagnetic shielding sheet 110, and transfers the magnetic flux back to the NFC antenna 120 and the receiving coil 130. It has the advantage of further improving the performance.
상기 전자파 차폐 시트(110)의 상부에는 합성수지 재질의 시트(Sheet;112)가 합지될 수 있다. 상기 전자파 차폐 시트(110)의 상부에 상기 시트(112)가 합지됨으로 인하여 후술되는 NFC 안테나(120)와 수신 코일(130)의 임베딩(Embedding)이 용이하게 이루어지게 된다. 상기 시트(112)는 폴리이미드(Polyimide), 폴리카보네이트(Polycarbonate), PET 등과 같은 합성수지재가 사용되는 것이 바람직하다.A sheet 112 made of synthetic resin may be laminated on the electromagnetic shielding sheet 110. Since the sheet 112 is laminated on the electromagnetic shielding sheet 110, embedding of the NFC antenna 120 and the receiving coil 130 to be described later may be easily performed. The sheet 112 is preferably a synthetic resin such as polyimide, polycarbonate, PET, and the like.
상기 전자파 차폐 시트(110)의 상부에는 NFC 안테나(120)가 임베딩(Embedding) 된다. 상기 NFC 안테나(120)는 근거리 통신 방식에 사용되는 안테나로서, 상기 NFC 안테나(120)는 최대 10㎝까지 송신과 수신이 가능하며, 상기 NFC 안테나(120)는 상기 전자파 차폐 시트(110)의 상부 외측 둘레를 따라 임베딩되는 것이 바람직하다.The NFC antenna 120 is embedded in the upper portion of the electromagnetic shielding sheet 110. The NFC antenna 120 is an antenna used in a short-range communication method, the NFC antenna 120 can be transmitted and received up to 10 cm, the NFC antenna 120 is the upper portion of the electromagnetic shielding sheet 110 It is preferably embedded along the outer perimeter.
상기 NFC 안테나(120)는 초음파 융착 방식을 이용하여 상기 전자파 차폐 시트(110)의 상부에 임베딩시키는 것이 바람직하다. 상기 초음파 융착 방식은 전원입력의 전기적에너지를 진동자를 통해 기계적 진동에너지로 변환된 후 혼(Horn)을 통해 가공물에 가압하면 접합면에 순간적으로 강력한 마찰열을 발생시켜 접합면이 용해 접착되는 방식으로 다량 생산이 가능하고, 접착제가 필요 없게 된다.The NFC antenna 120 is preferably embedded in the upper portion of the electromagnetic shielding sheet 110 using the ultrasonic welding method. The ultrasonic welding method converts the electrical energy of the power input into mechanical vibration energy through a vibrator and then presses the workpiece through a horn to generate strong frictional heat instantaneously on the joint surface, and thus the joint surface is melted and bonded. Production is possible and no adhesive is required.
상기 NFC 안테나(120)가 임베딩된 상기 전자파 차폐 시트(110)의 상부에는 수신 코일(130)이 임베딩 된다. 상기 수신 코일(130)은 전력을 수신하여 휴대단말기에 전력을 인가하는 역할을 하며, 상기 수신 코일(130)은 상기 NFC 안테나(120)의 내측에서 상기 전자파 차폐 시트(110)의 상부에 임베딩되는 것이 바람직하다.The receiving coil 130 is embedded above the electromagnetic shielding sheet 110 in which the NFC antenna 120 is embedded. The receiving coil 130 serves to apply power to the mobile terminal by receiving power, and the receiving coil 130 is embedded on the electromagnetic shielding sheet 110 inside the NFC antenna 120. It is preferable.
상기 수신 코일(130) 역시 초음파 융착 방식을 이용하여 임베딩되며, 상기 NFC 안테나(120)와 수신 코일(130)을 초음파 융착 방식을 이용하여 직접 임베딩 시킴으로 인하여 접착제를 이용하여 접합하는 기존의 방식에 비해 작업시간을 단축시킬 수 있고, 원가를 절감시킬 수 있는 장점을 가진다.The receiving coil 130 is also embedded by using an ultrasonic welding method, and the NFC antenna 120 and the receiving coil 130 by directly embedding using the ultrasonic welding method, compared to the conventional method of bonding using an adhesive The work time can be shortened and the cost can be reduced.
상기 수신 코일(130)은 복수개의 자기 융착성 에나멜 동선(132)을 꼬아서 형성한 리츠(Litz) 와이어가 사용된다. 상기 자기 융착성 에나멜 동선(132)은 동선(133)과, 절연층(135)과, 자기융착층(137)으로 이루어진다.The receiving coil 130 is a Litz wire formed by twisting a plurality of self-adhesive enameled copper wires 132. The self-adhesive enameled copper wire 132 includes a copper wire 133, an insulating layer 135, and a self-sealing layer 137.
상기 동선(133)은 도체이며, 상기 절연층(135)은 도체인 상기 동선(133)을 외부로부터 절연시키는 것을 목적으로 하며, 상기 동선(133)이 외부로 노출되지 않도록 둘러싸고, 상기 자기융착층(137)은 상기 절연층(135)의 외부에 전기 전선의 피복과 같이 입혀져 상기 절연층의 외주면을 둘러싼다.The copper wire 133 is a conductor, and the insulating layer 135 is intended to insulate the copper wire 133 which is a conductor from the outside, surrounds the copper wire 133 so as not to be exposed to the outside, and the self-sealing layer. Reference numeral 137 is coated on the outside of the insulating layer 135 like a covering of an electric wire to surround the outer circumferential surface of the insulating layer.
상기 자기융착층(137)은 초음파 융착 방식에 의해 상기 전자파 차폐 시트(110)의 상부에 임베딩 시 융해되어 접착력이 증대되고, 융해된 상기 자기융착층(137)과 상기 전자파 차폐 시트(110)의 표면이 식으면서 보다 강도 높게 고착된다.The self-fusion layer 137 is melted when embedded in the upper portion of the electromagnetic wave shielding sheet 110 by the ultrasonic welding method to increase the adhesive force, and the self-fusion layer 137 and the electromagnetic shielding sheet 110 As the surface cools, it sticks with higher strength.
상기 자기융착층(137)은 폴리아미드, 에폭시, 부틸알 및 폴리에스테르로 이루어진 군으로부터 선택된 하나 또는 복수개를 포함하여 형성되는 것이 바람직하다.The self-adhesive layer 137 is preferably formed including one or more selected from the group consisting of polyamide, epoxy, butyl al and polyester.
상기 전자파 차폐 시트(110)의 상부에 NFC 안테나(120)와 수신 코일(130)을 초음파 융착 방식을 이용하여 임베딩 시킴으로써, 상기 NFC 안테나(120)와 수신 코일(130)을 순차적으로 접합시키는 것이 아니라 동시에 접합시킬 수 있어 작업시간을 단축시킬 수 있는 장점을 갖게 된다.By embedding the NFC antenna 120 and the receiving coil 130 on the electromagnetic shielding sheet 110 by using an ultrasonic welding method, the NFC antenna 120 and the receiving coil 130 are not sequentially bonded. At the same time it can be bonded to have the advantage of shortening the working time.
상기 보호 시트(140)는 상기 전자파 차폐 시트(110), 상기 NFC 안테나(120) 및 상기 수신 코일(130)을 열이나 수분 및 습기 등의 외부 요인으로부터 보호하는 역할을 하며, 상기 전자파 차폐 시트(110)의 상부에 구비되는 것이 바람직하다.The protective sheet 140 serves to protect the electromagnetic shielding sheet 110, the NFC antenna 120, and the receiving coil 130 from external factors such as heat, moisture, and moisture, and the electromagnetic shielding sheet ( It is preferably provided at the top of the (110).
상기 보호 시트(140)가 상기 전자파 차폐 시트(110)를 상부와 구비됨으로 인하여 열이나 수분 및 습기로부터 상기 전자파 차폐 시트(110), 상기 NFC 안테나(120) 및 상기 수신 코일(130)이 보호되게 된다.The electromagnetic shielding sheet 110, the NFC antenna 120 and the receiving coil 130 may be protected from heat, moisture, and moisture by providing the electromagnetic shielding sheet 110 with the upper portion of the protective sheet 140. do.
상기 전자파 차폐 시트(110)와 상기 보호 시트(140)의 사이에는 접착층(150)이 구비되는 것이 바람직하다. 상기 접착층(150)은 접착제를 도포하거나 또는 양면테이프를 사용하여 구성할 수 있다. 상기 접착층(150)이 상기 전자파 차폐 시트(110)와 상기 보호 시트(140) 사이에 구비됨으로 인하여 상기 전자파 차폐 시트(110)의 상부에 접합된 상기 NFC 안테나(120), 상기 수신 코일(130)과 상기 전자파 차폐 시트(110)의 결합력을 더욱 증진시킬 수 있다.The adhesive layer 150 may be disposed between the electromagnetic shielding sheet 110 and the protective sheet 140. The adhesive layer 150 may be configured by applying an adhesive or using a double-sided tape. Since the adhesive layer 150 is provided between the electromagnetic shielding sheet 110 and the protective sheet 140, the NFC antenna 120 and the receiving coil 130 bonded to the upper portion of the electromagnetic shielding sheet 110. And it can further enhance the bonding force of the electromagnetic shielding sheet 110.
따라서, 전자파 차폐 시트(110)의 상부에 NFC 안테나(120)와 수신 코일(130)이 초음파 융착 방식을 이용하여 직접 임베딩 시킴으로 인하여 접착제를 이용하여 접합하는 기존의 방식에 비해 작업시간을 단축시킬 수 있고, 원가를 절감시킬 수 있으며, NFC 안테나(120)의 경우 에칭 작업을 수행하여야 함으로써 식각 공정 및 세척 공정에서 공해물질이 발생하였으나, 초음파 융착 방식을 이용하여 NFC 안테나(120)를 전자파 차폐 시트의 상부에 직접 임베딩 시킴으로 인하여 원가를 절감시킬 수 있고, 공해물질의 발생을 방지할 수 있다.Therefore, since the NFC antenna 120 and the receiving coil 130 are directly embedded using the ultrasonic welding method on the electromagnetic shielding sheet 110, the working time can be shortened compared to the conventional method of bonding using an adhesive. And, the cost can be reduced, and in the case of the NFC antenna 120, the pollutant is generated in the etching process and the cleaning process by performing an etching operation, but the NFC antenna 120 by using the ultrasonic fusion method of the electromagnetic shielding sheet Embedding directly on top can reduce costs and prevent the generation of pollutants.
본 발명은 도면에 도시된 실시 예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 본 기술 분야의 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 다른 실시 예가 가능하다는 점을 이해할 것이다. 따라서 본 발명의 진정한 기술적 보호 범위는 첨부된 특허청구범위의 기술적 사상에 의하여 정해져야 할 것이다.Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.
본 발명은 무선충전기용 수신부 안테나에 이용될 수 있다.The present invention can be used in the receiver antenna for a wireless charger.

Claims (12)

  1. 휴대단말기를 무선으로 충전시키기 위해 사용되는 무선충전기용 수신부 안테나 제조방법에 있어서,In the method of manufacturing a receiver antenna for a wireless charger used to wirelessly charge a mobile terminal,
    전자파를 차단시키는 전자파 차폐 시트를 준비하는 단계;Preparing an electromagnetic shielding sheet for blocking electromagnetic waves;
    상기 전자파 차폐 시트의 상부 외측 둘레면에 근거리 통신 방식에 사용되는 NFC(Near Field Communication) 안테나를 임베딩(Embedding)시키는 단계;Embedding a near field communication (NFC) antenna used in a near field communication method on an upper outer circumferential surface of the electromagnetic shielding sheet;
    상기 전자파 차폐 시트의 상부에 전력을 수신하여 상기 휴대단말기에 전력을 인가하는 수신 코일을 임베딩(Embedding)시키는 단계; 및Embedding a receiving coil for receiving electric power on the electromagnetic shielding sheet to apply electric power to the mobile terminal; And
    상기 NFC(Near Field Communication) 안테나와 상기 수신 코일이 상부에 임베딩(Embedding)된 상기 전자파 차폐 시트의 상부를 보호시트로 감싸는 단계를 포함하는 무선충전기용 수신부 안테나 제조방법.The NFC (Near Field Communication) antenna and the receiver coil manufacturing method for a wireless charger receiver antenna comprising the step of enclosing the upper portion of the electromagnetic shielding sheet embedded in the upper (Embedding) with a protective sheet.
  2. 청구항 1에 있어서,The method according to claim 1,
    상기 NFC(Near Field Communication) 안테나와 상기 수신 코일의 임베딩(Embedding)은 초음파 융착을 이용하는 것을 특징으로 하는 무선충전기용 수신부 안테나 제조방법.Embedding of the NFC (Near Field Communication) antenna and the receiving coil (Embedding) is a receiver antenna manufacturing method for a wireless charger, characterized in that using ultrasonic welding.
  3. 청구항 1에 있어서,The method according to claim 1,
    상기 수신 코일은 복수개의 자기 융착성 에나멜 동선을 꼬아서 형성한 리츠(Litz) 와이어가 사용되는 것을 특징으로 하는 무선충전기용 수신부 안테나 제조방법.The receiving coil is a method of manufacturing a receiver antenna for a wireless charger, characterized in that a Litz wire formed by twisting a plurality of self-adhesive enamelled copper wires is used.
  4. 청구항 3에 있어서,The method according to claim 3,
    상기 자기 융착성 에나멀 동선은,The self-adhesive elastic copper wire,
    도체인 동선과,Conductor chains,
    상기 동선을 둘러싸는 절연층과,An insulating layer surrounding the copper wire,
    상기 절연층의 외주면을 둘러싸는 자기융착층으로 이루어지는 것을 특징으로 하는 수신부 안테나 제조방법.Receiver antenna manufacturing method comprising a self-sealing layer surrounding the outer peripheral surface of the insulating layer.
  5. 청구항 1에 있어서,The method according to claim 1,
    상기 전자파 차폐 시트의 상부에 상기 NFC(Near Field Communication) 안테나를 임베딩(Embedding)시키는 단계와 상기 수신 코일을 임베딩(Embedding)시키는 단계는 동시에 이루어지는 것을 특징으로 하는 무선충전기용 수신부 안테나 제조방법.Embedding the NFC (Near Field Communication) antenna on top of the electromagnetic shielding sheet (Embedding) and the method of manufacturing a receiver antenna for a wireless charger, characterized in that the step of embedding (Embedding) is performed at the same time.
  6. 청구항 1에 있어서,The method according to claim 1,
    상기 전자파 차폐 시트의 상부에 합지되는 합성수지재질의 시트(Sheet)를 더 포함하는 무선충전기용 수신부 안테나 제조방법. Method of manufacturing a receiver for a wireless charger further comprises a sheet of synthetic resin (Sheet) laminated on top of the electromagnetic shielding sheet.
  7. 휴대단말기를 무선으로 충전시키기 위해 사용되는 무선충전기용 수신부 안테나에 있어서,In the receiver antenna for a wireless charger used to wirelessly charge the mobile terminal,
    전자파를 차단시키는 전자파 차폐 시트;An electromagnetic shielding sheet for blocking electromagnetic waves;
    상기 전자파 차폐 시트의 상부 외측 둘레면에 임베딩(Embedding)되며, 근거리 통신 방식에 사용되는 NFC(Near Field Communication) 안테나; 및An NFC (Near Field Communication) antenna embedded in an upper outer circumferential surface of the electromagnetic shielding sheet and used in a near field communication method; And
    상기 전자파 차폐 시트의 상부에 임베딩(Embedding)되며, 전력을 수신하여 상기 휴대단말기에 전력을 인가하는 수신 코일을 포함하는 무선충전기용 수신부 안테나. Embedding (Embedding) on top of the electromagnetic shielding sheet, the receiving part antenna for a wireless charger including a receiving coil for receiving power to apply power to the portable terminal.
  8. 청구항 7에 있어서,The method according to claim 7,
    상기 NFC(Near Field Communication) 안테나와 상기 수신 코일이 임베딩(Embedding)된 상기 전자파 차폐 시트의 상부에 구비되며, 상기 전자파 차폐 시트를 감싸는 보호시트를 더 포함하는 무선충전기용 수신부 안테나.The NFC antenna and the receiver antenna for the wireless charger is provided on the upper portion of the electromagnetic shielding sheet embedded with the receiving coil (embedded), further comprising a protective sheet surrounding the electromagnetic shielding sheet.
  9. 청구항 8에 있어서,The method according to claim 8,
    상기 보호시트와 상기 전자파 차폐 시트의 사이에는 접착층이 구비되는 것을 특징으로 하는 무선충전기용 수신부 안테나.An antenna for a wireless charger receiver, characterized in that an adhesive layer is provided between the protective sheet and the electromagnetic shielding sheet.
  10. 청구항 7에 있어서,The method according to claim 7,
    상기 수신 코일은 복수개의 자기 융착성 에나멜 동선을 꼬아서 형성한 리츠(Litz) 와이어가 사용되는 것을 특징으로 하는 무선충전기용 수신부 안테나.The receiving coil is a wireless charging receiver antenna, characterized in that the Litz (Litz) wire is formed by twisting a plurality of self-adhesive enameled copper wire.
  11. 청구항 10에 있어서,The method according to claim 10,
    상기 자기 융착성 에나멀 동선은,The self-adhesive elastic copper wire,
    도체인 동선과,Conductor chains,
    상기 동선을 둘러싸는 절연층과,An insulating layer surrounding the copper wire,
    상기 절연층의 외주면을 둘러싸는 자기융착층으로 이루어지는 것을 특징으로 하는 수신부 안테나.A receiver antenna, characterized in that consisting of a self-sealing layer surrounding the outer peripheral surface of the insulating layer.
  12. 청구항 7에 있어서,The method according to claim 7,
    상기 전자파 차폐 시트의 상부에 합지되는 합성수지재질의 시트(Sheet)를 더 포함하는 무선충전기용 수신부 안테나.Receiver of the wireless charger further comprises a sheet (Sheet) of the synthetic resin material laminated on the electromagnetic shielding sheet.
PCT/KR2014/003849 2013-04-30 2014-04-30 Method for manufacturing receiving antenna for wireless charger and receiving antenna for wireless charger manufactured using same WO2014178645A1 (en)

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