WO2017086553A1 - Dispositif de charge sans fil portable - Google Patents

Dispositif de charge sans fil portable Download PDF

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Publication number
WO2017086553A1
WO2017086553A1 PCT/KR2016/003880 KR2016003880W WO2017086553A1 WO 2017086553 A1 WO2017086553 A1 WO 2017086553A1 KR 2016003880 W KR2016003880 W KR 2016003880W WO 2017086553 A1 WO2017086553 A1 WO 2017086553A1
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WO
WIPO (PCT)
Prior art keywords
case
battery
wireless charging
charging device
coil
Prior art date
Application number
PCT/KR2016/003880
Other languages
English (en)
Korean (ko)
Inventor
이승재
Original Assignee
주식회사 에이치시티엠
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 에이치시티엠 filed Critical 주식회사 에이치시티엠
Publication of WO2017086553A1 publication Critical patent/WO2017086553A1/fr

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Classifications

    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones

Definitions

  • the present invention relates to a portable wireless charging device, and more particularly, it is possible to wirelessly charge a battery of an acoustic device in a state in which a wireless audio device is stored in a case, and to carry a case further by additionally installing an auxiliary battery in the case.
  • the present invention relates to a portable wireless charging device capable of wireless charging.
  • the wireless audio device is a small speaker that allows to listen to music or call sounds from a terminal such as a smartphone or a PC, and is called a wireless earphone or a wireless headset.
  • a wireless earphone or a wireless headset For example, wired earphones, which have been widely used, require a connection line for connecting a terminal and an earphone body, so that storage of the connection line is cumbersome and inconvenience such as tangling of the connection line when used. Accordingly, in recent years, a Bluetooth wireless audio device capable of data communication with a terminal without a connection line has become popular.
  • the Bluetooth wireless audio device can solve the above-mentioned shortcomings of the conventional wired audio device.
  • the earphone is composed of a pair of earphone bodies, it is not easy to store. In particular, the internal battery of the wireless earphone is charged. Because it can be used only in a state, there was an inconvenience of carrying a wired charger or a spare battery together to charge the battery when the battery was discharged.
  • the wired charger needs to use an external power source, there is a problem in that it is impossible to charge it while moving.
  • the auxiliary battery although charging is possible while moving, the auxiliary battery should always be carried, and a connector for connecting the earphone and the auxiliary battery is required. There was a disadvantage that charging is impossible without.
  • An object of the present invention is to provide a portable wireless charging device.
  • a wireless acoustic device including at least one earphone body, a Bluetooth module and a battery for the audio device including a speaker for outputting a sound source therein; And a case including a power connection unit receiving power from the outside, the case including at least one settling groove for accommodating the earphone body, wherein the case is electrically connected to the external power source through the power connection unit.
  • a transmitting coil to be connected is wound along a circumference of the settling groove, and a receiving coil connected to a battery for the acoustic device is wound around an outer circumferential surface of the speaker in the earphone body, and the transmitting coil is applied from an external power source.
  • the receiving coil When the electromagnetic field is generated by the voltage, and the earphone body is accommodated in the settling groove, the receiving coil is located in the electromagnetic field to generate an induced current by electromagnetic induction, and the battery for the acoustic device is supplied with electricity by the induced current. It is characterized by being charged.
  • the case may include a case battery connected to the power connection unit to store external power; And a switch for controlling an electrical short circuit between the case battery and the transmitting coil.
  • the transmitting coil and the case battery are energized by an operation of the switch, the transmitting coil is connected to a voltage applied from the case battery.
  • the electromagnetic field is generated, the induction current is generated by the electromagnetic induction in the receiving coil, the battery for the acoustic device may be charged with the induction current.
  • the settling groove is formed concave from the surface of the case so as to correspond to the appearance of the earphone body, and when the earphone body is accommodated in the settling groove, the receiving coil is configured to be disposed inside the transmitting coil. Can be.
  • the case is a polyhedral shape of the outer shape
  • the settling groove may be formed concave from the upper surface of the case.
  • the case is a polyhedral shape of the outer shape
  • the settling groove may be formed concave from the side of the case.
  • the case has a cylindrical shape
  • the settling groove may be formed concave from at least one of both end surfaces of the cylindrical case.
  • the wireless audio device may be a wireless earphone that is composed of two earphone body connected by a cable.
  • the case may further include a cable fixing part for accommodating the cable when the earphone body is accommodated in the settling groove.
  • the wireless audio device may be a neckband type wireless headset including a neckband supporting two earphone bodies at both ends.
  • a portable wireless charging device by placing the earphone body in the settling groove of the case, the earphone body can be easily stored, and the wireless charging of the earphone body can be performed by the three-dimensional wireless charging method in a placed state. It works.
  • the battery for the acoustic device may be charged using the power stored in advance in the case battery.
  • FIG. 1 is a schematic diagram illustrating a configuration of a portable wireless charging device according to an embodiment of the present invention.
  • FIG. 2 is a diagram illustrating a wireless acoustic device.
  • 3A is a diagram illustrating a first embodiment of a case of a portable wireless charging device applied to a wireless acoustic device.
  • 3B is a view showing a second embodiment of a case of a portable wireless charging device applied to a wireless acoustic device.
  • 3C is a view showing a third embodiment of a case of a portable wireless charging device applied to a wireless acoustic device.
  • 4A is a diagram illustrating an embodiment of a neckband type wireless headset.
  • Figure 4b is a view showing another embodiment of a neckband type wireless headset.
  • FIG. 5 is a conceptual diagram illustrating a state in which the neckband type wireless headset of FIG. 4B is accommodated in the case of FIG. 3C.
  • FIG. 1 is a schematic diagram showing the configuration of a portable wireless charging device 100 according to an embodiment of the present invention
  • Figure 2 is a view showing a wireless acoustic device 110 of the portable wireless charging device 100
  • FIG. 3A to 3C show first to third embodiments of the case 120.
  • the portable wireless charging device 100 of the present invention is composed of a wireless acoustic device 110 and a case 120.
  • the wireless acoustic device 110 includes at least one earphone body 111, and for example, two earphone bodies 111 on the left side and the right side may configure the wireless sound apparatus 110.
  • a speaker 113 is built into each earphone body 111, and the speaker 113 is connected to the Bluetooth module 116 from a portable terminal (tablet or smartphone) connected to (paired) the Bluetooth module 116 described later.
  • a configuration for outputting a sound source by converting the transmitted voice data into sound waves it may include any one of a crystal receiver or a magnetic receiver.
  • the receiving coil 130 is wound on the outer circumferential surface of the speaker 113 built into the earphone main body 111 a plurality of times, and the receiving coil 130 is connected to the battery 117 for the acoustic device described later.
  • the receiving coil 130 is configured to generate an induction current by electromagnetic induction together with the transmitting coil 140 formed inside the case 120. The charging of the battery 117 for the acoustic device by the induction current will be described in detail later. .
  • the wireless acoustic device 110 includes a body 115 accommodating the Bluetooth module 116 and a battery 117 for the acoustic device, and a cable 119 for electrically connecting two earphone bodies 111 to the body 115. It may be configured to include more.
  • the Bluetooth module 116 receives the voice data transmitted from the portable terminal and transmits the received voice data to the speaker 113 built in the earphone main body 111.
  • the battery 117 for the sound device is to supply power to the Bluetooth module 116 to drive the Bluetooth module 116 in a wireless connection, it may include a secondary battery.
  • the wireless acoustic device 110 described in the present invention may be a wireless earphone or a neckband type wireless headset.
  • the wireless earphone is a wireless acoustic device in which two earphone bodies 111 are connected by a cable 119, and the neckband type wireless headset is illustrated in FIG. 4A or 4B.
  • It is a wireless acoustic device including a neck band for supporting the earphone body 111 at both ends.
  • two earphone bodies 111 are electrically connected by a cable 119.
  • the controller may further include a controller (not shown) and a body 115 separately from the earphone body, and in the case of the wireless earphone of FIG.
  • the body 115 accommodates the Bluetooth module 116 and the battery 117 for the acoustic device.
  • the neckband type wireless headset may be a body 115 in which the neckband accommodates the Bluetooth module 116 and the battery 117 for the audio device.
  • the case 120 of the present invention is basically a portable storage container for storing the wireless sound device 110, and a charger for charging the battery 117 for the sound device of the wireless sound device 110 during storage.
  • the charging of the battery 117 for the acoustic device adopts a wireless charging method, and the wireless charging method uses a battery embedded in the case 120 itself without an external power source as well as a wired method in which the case 120 is connected to an external power source. Includes all of them.
  • the above-described functions can be implemented through the settlement groove 121, the power connection unit 150 and the case battery 125. Specifically, it is as follows.
  • the case 120 since the case 120 is basically a portable storage container, when storing the wireless audio device, the case 120 receives the earphone body 111, the body 115, and the cable 119.
  • 3A illustrates an example of the case 120 in which a shape of an external appearance is a hexahedron.
  • the case 120 includes at least one settling groove 121 for accommodating the earphone body 111 on a specific surface of the hexahedron.
  • the number of the settled groove 121 is determined according to the quantity of the earphone body 111. For example, when the earphone body 111 is one, the case 120 includes at least one settled groove 121, the earphone body In the case where two 111s are provided, at least two settling grooves 121 are formed in the case 120.
  • the settling groove 121 may have a shape recessed inwardly from a specific surface of the case 120 to correspond to the outer shape of the earphone body 111. Settle groove 121 may be formed on the upper surface of the case, as shown in Figure 3a. In addition, as shown in FIG. 3B, two settling grooves 121 may be formed on opposite sides of the side of the case.
  • the case 120 may be formed of the same material as a whole, but may further include a protrusion (not shown) for fixing the earphone body 111 to a portion of the settled groove 121 so that the earphone body 111 is detachable.
  • the case 120 of the present invention may further include a cable fixing part for accommodating the cable 119 for electrically connecting the earphone body 111 and the body 115.
  • the cable fixing part may be formed of, for example, a groove for guiding the cable 119 which is recessed and wound from the surface of the case 120 along the circumference of the hexahedral case 120, and guides and fixes the cable 119. It may be at least one or more projections.
  • the case 120 should just be a shape which can hold the structure of the earphone main body 111, the body 115, the cable 119, etc. compactly, and the external appearance does not have a restriction
  • the case 120 may be a charger for charging the battery of the earphone body 111 is placed in the settling groove 121 of the case 120.
  • the battery charging of the earphone main body 111 is implemented by the magnetic induction principle using the magnetic flux induction phenomenon between the transmitting coil 140 and the receiving coil 130, the wireless acoustic device 110 or Disclosed is a technology in which the battery 117 for the sound device of the wireless sound device 110 is charged by only placing the wireless sound device 110 in the case 120 without being connected to a power cable.
  • the magnetic induction method is a near-field charging technology.
  • the wireless acoustic device 110 When the wireless acoustic device 110 is placed in the case 120, an electromagnetic field is generated from the transmission coil 140 embedded in the settling groove 121 of the case 120, and the earphone The main body 111 is placed in an electromagnetic field, and an induction current by electromagnetic induction is generated in the receiving coil 130 embedded in the earphone main body 111. Accordingly, the induced current generated in the receiving coil 130 flows into the battery 117 for the sound device to charge electricity in the battery 117 for the sound device.
  • the case 120 and the earphone main body 111 are provided with a transmitting coil 140 and a receiving coil 130, respectively.
  • the receiving coil 130 is wound on the outer circumferential surface of the speaker 113 embedded in the earphone main body 111 a plurality of times, and is connected to the battery 117 for an acoustic device, and the transmitting coil 140 is placed inside the case 120. Winding a plurality of times along the circumference of the groove 121 is electrically connected to the external power through the power connection unit 150.
  • the receiving coil 130 When an external power source is connected to the power connection unit 150 of the case 120, a current flows in the transmission coil 140, and the transmission coil 140 becomes an electromagnet, generating an electromagnetic field around the transmission coil 140.
  • the receiving coil 130 When the earphone main body 111 is accommodated in the settling groove 121 of the case 120 and approaches the case 120 in a short distance, the receiving coil 130 provided in the earphone main body 111 is settled in the groove 121. It is placed in the electromagnetic field generated by the transmitting coil 140 wound inside the. Accordingly, in the receiving coil 130, an induction current is generated by an electromagnetic induction phenomenon, and the induction current charges the battery 117 for an acoustic device connected to the receiving coil 130. That is, the receiving coil 130 functions as an antenna for wireless charging.
  • the receiving coil 130 should be present in the electromagnetic field of the transmitting coil 140, in this regard, the earphone body 111 is to be accommodated in the settling groove 121. At this time, it is preferable that the receiving coil 130 is configured to be disposed inside the transmitting coil 140.
  • the receiving coil 130 formed on the outer circumferential surface of the speaker 113 to generate an induced current may be electrically connected to the voice coil disposed inside the speaker 113, and the voice coil may be wirelessly connected with the receiving coil 130.
  • a diaphragm, a permanent magnet, and a voice coil are built into the speaker 113 of the earphone body 111. When a current with sound information flows through the voice coil, the voice coil is moved by Fleming's left-hand law, and the vibration plate attached to the voice coil vibrates to generate sound.
  • the voice coil is electrically connected to the receiving coil 130, the receiving coil 130 is wound on the outer circumferential surface of the speaker, the voice coil is wound inside the speaker Can be.
  • the voice coil may function as a wireless charging antenna together with the receiving coil.
  • the current supply method may be a wired current supply method and a wireless current supply method.
  • the wired current supply method uses an external power source by connecting an external power source and a case 120 by wire using a separate DC power supply device and a cable.
  • the portable wireless charging device 100 of the present invention The case 120 is a wired charger that charges the battery of the earphone body 111 placed in the settling groove 121 of the case 120 by wire.
  • the case 120 includes a power connection unit 150 that receives current from an external power source.
  • the power connection unit 150 is electrically connected to the transmitting coil 140 to be described later.
  • the power connection unit 150 may be a power connection terminal, a separate DC power supply is connected to the outlet and the cable of the DC power supply is inserted into the power connection terminal of the case 120 to the current in the transmission coil 140 To flow.
  • the current flowing in the transmitting coil 140 generates electromagnetic induction, and thus the induced current generated in the receiving coil 130 is transmitted to the battery 117 for the acoustic device through the cable 119 of the wireless acoustic device 110.
  • the battery 117 for sound equipment is charged.
  • the case 120 in order to wirelessly charge the earphone main body 111, since the case 120 must be connected to an external power source by wires, the case 120 is mounted at a predetermined position and supplies current from the external power source.
  • Receiving the wireless sound device 110 while receiving will be referred to as a wireless charging method that is supplied with a wire.
  • the wireless current supply method uses a pre-charged current in the secondary secondary battery built in the case 120
  • the case 120 of the portable wireless charging device 100 of the present invention is the case 120 It becomes an auxiliary battery for wirelessly charging the battery of the earphone body 111 is placed in the settling groove 121 of.
  • the present invention separately includes a case battery 125 that is a secondary battery in the case 120 so that the wireless acoustic device 110 can be wirelessly charged in a state in which the wireless acoustic device 110 is seated on the case 120.
  • the battery 125 for the case is electrically connected to the transmitting coil 140 to flow a current through the transmitting coil 140.
  • the current flowing in the transmitting coil 140 generates electromagnetic induction, and thus the induced current generated in the receiving coil 130 is transmitted to the battery 117 for the acoustic device through the cable 119 of the wireless acoustic device 110.
  • the battery 117 for sound equipment is charged. Accordingly, even when an external power source is not wired to the case 120, the current may be provided to the transmission coil 140 through the power stored in the case battery 125.
  • the wireless acoustic device 110 can be charged even when the mobile phone is in the state stored in the case 120.
  • the case 120 may include a switch 127 for controlling an electrical short circuit between the case battery 125 and the transmitting coil 140, and the power of the case battery 125 is controlled by the operation of the switch 127.
  • the transmission coil 140 and the case battery 125 are energized, and a current flows from the case battery 125 to the transmission coil 140. Subsequently, an electromagnetic field is generated in the transmitting coil 140 and an induced current is generated in the receiving coil 130 placed in the electromagnetic field to charge the battery 117 for the acoustic device. Since it is the same as the charging method, duplicate description is omitted.
  • FIG. 5 is a conceptual diagram illustrating a state in which the neckband type wireless headset illustrated in FIG. 4B is accommodated in the cylindrical case illustrated in FIG. 3D. If the charge of the built-in audio device battery is exhausted or discharged while the wireless headset is in use, the user can charge the battery for the sound device using a case stored separately.
  • the battery charging can be made by simply inserting the earphone body of the neckband type wireless headset into the settling grooves formed at both ends of the case, since the case is small in size, the user has a neckband type It is possible to charge the battery for an acoustic device with the wireless headset on your neck.
  • the earphone body 111 is generally curved in appearance so as to be easily inserted into the ear, and is very small in size. Therefore, the two-dimensional wireless charging method of placing the wireless device on a flat charging pad cannot be adopted in a device of the type such as the wireless acoustic device 110.
  • the portable wireless charging device 100 according to an embodiment of the present invention, the receiving coil of the earphone body 111 due to the influence of the electromagnetic field generated by the transmitting coil 140 of the case 120 ( The battery 117 for the acoustic device is wirelessly charged using the induced current generated by 130.
  • the receiving coil 130 is wound in the outer peripheral space of the speaker 113 provided in the earphone body 111, the transmitting coil 140 is wound in the inner space of the settle groove 121, these coils It occupies three-dimensional space, not two-dimensional planes.
  • the earphone main body 111 is stored in the form of being inserted into the settling groove 121 of the case 120, the receiving coil 130 of the earphone main body 111 and the transmitting coil of the settling groove 121 ( 140 is to share the space of the settle groove 121. Accordingly, the earphone main body 111 is easily stored in the case 120, and at the same time, the wireless charging using the three-dimensional wireless charging method is achieved.
  • the battery 117 for the acoustic device is used by using the power stored in advance in the case battery 125 even when no external power is supplied, such as during the movement. You can also charge. In other words, the wireless charging can be effected while being carried.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Manufacturing & Machinery (AREA)

Abstract

La présente invention concerne un dispositif de charge sans fil portable et comprend : au moins un corps principal d'écouteur qui contient un haut-parleur destiné à délivrer en sortie une source sonore ; un dispositif acoustique sans fil contenant un module Bluetooth et une batterie de dispositif acoustique ; et un boîtier contenant une partie de connexion d'alimentation par le biais de laquelle de l'énergie est fournie depuis l'extérieur et possédant au moins une rainure d'appui destinée à recevoir le corps principal d'écouteur. À l'intérieur du boîtier, une bobine d'émission reliée électriquement à une source d'alimentation externe à travers la partie de connexion d'alimentation est enroulée une pluralité de fois sur la circonférence de la rainure d'appui et, à l'intérieur du corps principal d'écouteur, une bobine de réception reliée à la batterie du dispositif acoustique est enroulée une pluralité de fois autour de la surface circonférentielle externe du haut-parleur. Dans la bobine d'émission, un champ électromagnétique est généré par une tension appliquée par la source d'alimentation externe. Lorsque le corps principal d'écouteur est logé dans la rainure d'appui, la bobine de réception est située à l'intérieur du champ électromagnétique, ce qui a pour effet qu'un courant induit est généré par induction électromagnétique et la batterie du dispositif acoustique est chargée en électricité par le courant induit.
PCT/KR2016/003880 2015-11-16 2016-04-14 Dispositif de charge sans fil portable WO2017086553A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2015-0160485 2015-11-16
KR1020150160485A KR101718325B1 (ko) 2015-11-16 2015-11-16 휴대용 무선 충전 장치

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WO2017086553A1 true WO2017086553A1 (fr) 2017-05-26

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019041781A1 (fr) * 2017-08-30 2019-03-07 深圳市仁清卓越投资有限公司 Boîte de charge et de stockage d'écouteurs sans fil
US20190200136A1 (en) * 2017-12-27 2019-06-27 Audio-Technica Corporation Electro-acoustic transducer system
CN110996207A (zh) * 2019-12-11 2020-04-10 深圳市蓝蜂时代实业有限公司 能判断无线耳机是否在充电盒内的方法、系统、无线耳机
WO2020097916A1 (fr) * 2018-11-16 2020-05-22 深圳百灵声学有限公司 Étui de transport et de chargement intelligent de casque d'écoute bluetooth sans fil et casque d'écoute bluetooth
CN112565963A (zh) * 2020-11-30 2021-03-26 维沃移动通信有限公司 电子设备
CN112565955A (zh) * 2019-09-10 2021-03-26 Oppo广东移动通信有限公司 耳机盒、耳机及耳机盒组件
CN112817165A (zh) * 2020-12-31 2021-05-18 歌尔股份有限公司 一种智能眼镜和无线充电座
US11184698B2 (en) * 2016-12-21 2021-11-23 Amosense Co., Ltd. Headset capable of wireless charging, and headset charging system using wireless power transmission comprising same
CN114268871A (zh) * 2021-10-26 2022-04-01 深圳市智链信息技术有限公司 一种便携式蓝牙耳机充电装置

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11184698B2 (en) * 2016-12-21 2021-11-23 Amosense Co., Ltd. Headset capable of wireless charging, and headset charging system using wireless power transmission comprising same
WO2019041781A1 (fr) * 2017-08-30 2019-03-07 深圳市仁清卓越投资有限公司 Boîte de charge et de stockage d'écouteurs sans fil
US20190200136A1 (en) * 2017-12-27 2019-06-27 Audio-Technica Corporation Electro-acoustic transducer system
US10728671B2 (en) * 2017-12-27 2020-07-28 Audio-Technica Corporation Electro-acoustic transducer system
WO2020097916A1 (fr) * 2018-11-16 2020-05-22 深圳百灵声学有限公司 Étui de transport et de chargement intelligent de casque d'écoute bluetooth sans fil et casque d'écoute bluetooth
CN112565955A (zh) * 2019-09-10 2021-03-26 Oppo广东移动通信有限公司 耳机盒、耳机及耳机盒组件
CN110996207A (zh) * 2019-12-11 2020-04-10 深圳市蓝蜂时代实业有限公司 能判断无线耳机是否在充电盒内的方法、系统、无线耳机
CN112565963A (zh) * 2020-11-30 2021-03-26 维沃移动通信有限公司 电子设备
CN112817165A (zh) * 2020-12-31 2021-05-18 歌尔股份有限公司 一种智能眼镜和无线充电座
CN112817165B (zh) * 2020-12-31 2022-08-26 歌尔股份有限公司 一种智能眼镜和无线充电座
CN114268871A (zh) * 2021-10-26 2022-04-01 深圳市智链信息技术有限公司 一种便携式蓝牙耳机充电装置

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