WO2022141854A1 - 带适配器功能的耳机充电仓 - Google Patents

带适配器功能的耳机充电仓 Download PDF

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Publication number
WO2022141854A1
WO2022141854A1 PCT/CN2021/083394 CN2021083394W WO2022141854A1 WO 2022141854 A1 WO2022141854 A1 WO 2022141854A1 CN 2021083394 W CN2021083394 W CN 2021083394W WO 2022141854 A1 WO2022141854 A1 WO 2022141854A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit
charging
earphone
electrically connected
earphone charging
Prior art date
Application number
PCT/CN2021/083394
Other languages
English (en)
French (fr)
Inventor
李文进
Original Assignee
深圳市亚马电子有限公司
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
Priority claimed from CN202023349810.8U external-priority patent/CN214205805U/zh
Priority claimed from CN202110298341.1A external-priority patent/CN113054727A/zh
Application filed by 深圳市亚马电子有限公司 filed Critical 深圳市亚马电子有限公司
Publication of WO2022141854A1 publication Critical patent/WO2022141854A1/zh

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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
    • H04R1/1025—Accumulators or arrangements for charging
    • 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
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • 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
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
    • H04R25/602—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of batteries
    • 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
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/40—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage
    • 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
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0044—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction specially adapted for holding portable devices containing batteries
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/31—Aspects of the use of accumulators in hearing aids, e.g. rechargeable batteries or fuel cells
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/17—Hearing device specific tools used for storing or handling hearing devices or parts thereof, e.g. placement in the ear, replacement of cerumen barriers, repair, cleaning hearing devices

Definitions

  • the invention relates to the technical field of charging equipment, in particular to an earphone charging bin with an adapter function.
  • Bluetooth headsets on the market are equipped with charging compartments, which are easy to carry and charge the earphones, which has become one of the current fashionable standard of mobile phones.
  • the power adapter that can charge the mobile phone is also a standard electronic product of the mobile phone.
  • the current power adapter and earphone charging bin are designed separately as a single product, and the internal structure and function of the two products are relatively less improved, which also leads to the relatively single function of the existing charging bin, the structure and function are seriously homogenized, and the charging Warehouse use function is limited and other issues.
  • An earphone charging bin with adapter function which includes an AC/DC conversion circuit, a DC power output circuit and an earphone charging circuit, the DC power output circuit is provided with a charging protocol circuit, the AC/DC conversion circuit and the charging protocol circuit Electrical connection, the charging protocol circuit is electrically connected to the earphone charging circuit, the AC/DC conversion circuit is used to connect alternating current and convert the alternating current into direct current, and the earphone charging circuit is used to charge the earphone battery and the battery. The earphone is charged, and the DC power output circuit is used for charging the mobile terminal.
  • the AC/DC conversion circuit includes an AC input terminal, a rectifier bridge stack, a high-frequency transformer and a synchronous rectification circuit, and the AC input terminal is the input terminal of the AC/DC conversion circuit, which is used to connect to the AC power,
  • the AC input end, the rectifier bridge stack, the high-frequency transformer and the synchronous rectifier circuit are electrically connected in sequence.
  • the AC/DC conversion circuit further includes a power supply main control chip, a photoelectric coupling circuit and a feedback circuit, and the power supply main control chip is electrically connected to the high-frequency transformer, the photoelectric coupling circuit and the feedback circuit respectively, and the feedback The circuit is electrically connected with the high-frequency transformer, and the photoelectric coupling circuit is electrically connected with the synchronous rectification circuit.
  • the DC power output circuit further includes a USB power output interface for charging the mobile terminal, and the USB power output interface is electrically connected to the charging protocol circuit.
  • the earphone charging circuit includes a DC/DC power conversion circuit, a charge management/lithium battery protection circuit, an earphone charging interface and a rechargeable battery
  • the charging protocol circuit is electrically connected to the DC/DC power conversion circuit
  • the charging protocol circuit is electrically connected to the DC/DC power conversion circuit.
  • the DC/DC power conversion circuit, the charging management/lithium battery protection circuit, and the earphone charging interface are electrically connected in sequence
  • the rechargeable battery is electrically connected to the charging management/lithium battery protection circuit
  • the earphone charging interface is used to charge the earphone
  • the rechargeable battery is used for charging the earphones and charging the earphones.
  • the charging protocol circuit has a charging protocol chip
  • the charging protocol chip has a plurality of pins
  • the plurality of pins include a first pin to a ninth pin
  • the synchronous rectification circuit has a rectifying chip
  • the first pin and the third pin are electrically connected to the rectifier chip
  • the second pin and the third pin are respectively electrically connected to the photoelectric coupling circuit.
  • the DC/DC power conversion circuit has a power conversion chip, the power conversion chip has an IN terminal and an OUT terminal, the eighth pin of the charging protocol chip is connected to the IN terminal, and the OUT terminal is connected to the IN terminal.
  • the charging management/lithium battery protection circuit is electrically connected.
  • the photoelectric coupling circuit has a photoelectric coupling sensor
  • the photoelectric coupling sensor includes a photoelectric coupling sensor U4-A and a photoelectric coupling sensor U4-B
  • the photoelectric coupling sensor U4-A is electrically connected to the charging protocol chip
  • the photoelectric coupling sensor U4-B is electrically connected to the power supply main control chip.
  • the earphone charging compartment with adapter function has a compartment body, and the AC/DC conversion circuit, the DC power output circuit and the earphone charging circuit are respectively arranged in the compartment body; the compartment body is provided with an electric plug, an earphone A charging contact and a charging output interface, the electric plug is used to connect an external power supply, the earphone charging contact is electrically connected with the earphone charging interface, and the charging output interface is connected with the USB power output interface to charge the electronic product.
  • the box body is further provided with an accommodating groove, the electrical plug is rotatably installed in the accommodating groove, so that the electrical plug is folded and accommodated in the accommodating groove, and the electrical plug is used for connecting alternating current.
  • an earphone charging compartment with adapter function which includes a compartment body, an AC/DC conversion module and a DC/DC conversion module, the AC/DC conversion module and the DC/DC conversion module are respectively installed in the compartment body, the
  • the bin body is provided with an electric plug for connecting to an external power source, and the bin body has an earphone charging contact, and the earphone charging contact is electrically connected with the DC/DC conversion module.
  • the bin body also has a charging output interface. The charging output interface is connected with the AC/DC conversion module to charge the electronic product.
  • the box body is further provided with an accommodating groove, and the electric plug is reversibly installed in the accommodating groove so that the electric plug is folded and accommodated in the accommodating groove.
  • the plug When the plug is turned out, it is perpendicular to one side or surface of the box body, and the electric plug is flush with the side or surface when it is folded and accommodated in the receiving groove.
  • the DC/DC conversion module is a step-down converter, and the AC/DC conversion module is connected to the DC/DC conversion module for converting the output voltage of the AC/DC conversion module into direct current for charging the earphones Voltage.
  • the above-mentioned earphone charging bin with adapter function is provided with an AC/DC conversion circuit, a DC power output circuit and an earphone charging circuit.
  • the AC/DC conversion circuit is used to connect the alternating current and convert the alternating current into direct current
  • the earphone charging circuit is used for Charge the battery and earphones of the earphone charging compartment
  • the DC power output circuit is used to charge the mobile terminal. It can charge the terminal, earphones, and earphone charging compartment at the same time, reducing the number of necessary accessories to be carried out, and improving the function of the charging compartment.
  • FIG. 1 is a schematic structural block diagram of an earphone charging compartment with an adapter function provided by an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a circuit structure of an earphone charging compartment with an adapter function provided by an embodiment of the present invention.
  • FIG. 3 is a schematic three-dimensional structural diagram of an open state of an earphone charging compartment with an adapter function provided by an embodiment of the present invention.
  • FIG. 4 is a schematic three-dimensional structural diagram of an earphone charging compartment with an adapter function provided by an embodiment of the present invention.
  • FIG. 1 shows an earphone charging bin 100 with an adapter function according to an embodiment of the present invention, which includes an AC/DC conversion circuit 1 , a DC power output circuit 2 and an earphone charging circuit 3 .
  • the DC power output circuit 2 There is a charging protocol circuit 21, the AC/DC conversion circuit 1 is electrically connected to the charging protocol circuit 21, the charging protocol circuit 21 is electrically connected to the earphone charging circuit 3, and the AC/DC conversion circuit 1 is used to connect Input AC100-240V alternating current, and convert the alternating current into direct current. After circuit processing, it is divided into two corresponding outputs to the DC power output circuit 2 and the earphone charging circuit 3; the earphone charging circuit 3 is used to output the DC power to the earphone charging compartment battery.
  • the DC power output circuit 2 is used to output 5 to 20V DC power to charge the mobile terminal, and the terminal includes electronic products such as mobile phones, computers, tablet computers, and mobile power supplies. Further, the AC/DC conversion circuit 1 , the DC power output circuit 2 and the earphone charging circuit 3 are respectively arranged reasonably with components according to the area, so as to reduce the mutual interference of electrical signals between the circuits of each part.
  • the AC/DC conversion circuit 1 includes an AC input terminal 11 , a rectifier bridge stack 12 , a high-frequency transformer 13 and a synchronous rectification circuit 14 , and the AC input terminal 11 is the input terminal of the AC/DC conversion circuit 1 .
  • the AC input terminal 11 is the input terminal of the AC/DC conversion circuit 1 .
  • the alternating current input end 11, the rectifier bridge stack 12, the high frequency transformer 13 and the synchronous rectification circuit 14 are electrically connected end to end in sequence.
  • a filter circuit 18 is further provided between the rectifier bridge stack 12 and the high-frequency transformer 13 , and the filter circuit 18 has a capacitor and an inductor for energy storage filtering and anti-electromagnetic interference.
  • the capacitor includes a polar capacitor EC1 and a polar capacitor EC2
  • the inductance includes an inductor L1 and an inductor L2
  • both ends of the inductor L1 are connected to the negative electrodes of the polar capacitor EC1 and the polar capacitor EC2.
  • the two ends of the inductor L2 are connected with the polar capacitor EC1 and the positive electrodes of the polar capacitor EC2 in one-to-one correspondence, and the negative electrodes of the two polar capacitors are also connected through the resistor R1, that is, the resistor R1 is connected with the inductor L1 Parallel connection; two stages of the polar capacitor EC1 are respectively connected to the input rectifier bridge stack, the positive electrode of the polar capacitor EC2 is connected to the high frequency transformer 13, and the negative electrode of the polar capacitor EC2 is connected to the inductor L1 and then grounded.
  • the high-frequency transformer 13 has a high-frequency transformer primary coil 131 and a high-frequency transformer secondary coil 132, the high-frequency transformer primary coil 131 is connected to the filter circuit 18, and the high-frequency transformer secondary coil 132 It is connected with the synchronous rectification circuit 14 ; the high-frequency transformer 13 also has the function of effectively and safely isolating the AC/DC conversion circuit 1 and the DC power output circuit 2 .
  • the synchronous rectification circuit 14 has a synchronous rectification chip U2 and a large-capacity capacitor EC4.
  • One end of the large-capacity capacitor EC4 is connected to one pin of the rectifier chip U2, and the other end is grounded for outputting energy storage filtering and Anti-electromagnetic interference;
  • the synchronous rectification chip U2 is preferably a CX7538B chip, and the synchronous rectification chip U2 is connected to the secondary coil 132 of the high-frequency transformer for outputting a stable DC power supply.
  • the AC/DC conversion circuit 1 further includes a power main control chip 15 , a photoelectric coupling circuit 16 and a feedback circuit 17 .
  • the power main control chip 15 is connected to the high frequency transformer 13
  • the photoelectric coupling circuit 16 and the feedback circuit. 17 are respectively electrically connected
  • the feedback circuit 17 is electrically connected to the high-frequency transformer 13
  • the photoelectric coupling circuit 16 is electrically connected to the synchronous rectification circuit 14 .
  • each device in the AC/DC conversion circuit 1 is arranged according to a designed safety distance (preferably more than 6 mm).
  • the power supply main control chip 15 is preferably a CX7509C chip U1, with multiple built-in protections;
  • the photoelectric coupling circuit 16 has a photoelectric coupling sensor 160, which synchronizes input and output through photoelectric conversion, effectively and safely isolating AC high voltage and DC low voltage;
  • the CX7509C chip U1 is respectively connected to the primary coil 131 of the high-frequency transformer, the photoelectric coupling sensor 160 and the feedback circuit 17 for stabilizing the output voltage.
  • the CX7509C chip U1 has the 1st pin to the 8th pin, and the 5th pin to the 8th pin are respectively electrically connected to the high frequency transformer primary coil 131 of the high frequency transformer 13 .
  • the second pin is electrically connected to the positive pole of the polar capacitor EC2 after connecting the resistor R3 and the resistor R2; the fourth pin is connected to the ground after connecting two parallel resistors, and the bottom 1 pin is grounded; the third lead The feet are electrically connected to the photo-coupled sensor 160 .
  • the feedback circuit 17 includes a high frequency voltmeter feedback stage coil, a polar capacitor EC3, a capacitor C2, a resistor R6 and a diode D2, the polar capacitor EC3 and the capacitor C2 are connected in parallel, and one end of the high frequency voltmeter feedback stage coil is connected to The negative electrode of the polar capacitor EC3 and the capacitor C2 are respectively connected, the other end of the feedback stage coil of the high-frequency voltage device is connected to the positive electrode of the diode D2, the negative electrode of the diode D2 is connected to the resistor R6, and the other end of the resistor R6 is connected to the polar capacitor.
  • the positive electrode of EC3 and the capacitor C2 are respectively connected; one end of the capacitor C2 is connected to the second pin of the CX7509C chip U1 , and the other end of the capacitor C2 is connected to the photoelectric coupling sensor 160 .
  • the DC power output circuit 2 further includes a USB power output interface 22 for charging the mobile terminal, and the USB power output interface 22 is electrically connected to the charging protocol circuit 21 .
  • the charging protocol circuit 21 has a charging protocol chip U3, and the charging protocol chip U3 is preferably a CX2919C chip with a TYPE-C protocol.
  • the CX2919C chip has a plurality of pins, and a plurality of the pins It includes the first pin to the ninth pin, the first pin and the third pin are electrically connected with the synchronous rectification circuit 14, and the second pin and the third pin are respectively connected with the photoelectric coupling circuit 16 Electrical connection, effectively and safely isolate AC high voltage and DC low voltage, the ninth pin is grounded.
  • the TYPE-C protocol that comes with the CX2919C chip can support automatic wake-up when TYPE-C devices are inserted, intelligently identify the positive and negative insertion of the plug, and realize the connection; intelligently identify and output voltage and current that conform to the protocol for mobile phones, computers, Intelligent charging of electronic products such as tablet computers and mobile power supplies, and has complete OVP, OCP, UVP and other protection functions.
  • the USB power output interface 22 has a TYPE-C chip, and the TYPE-C chip has A1 pins, A4 pins, A5 pins, A6 pins, A7 pins, A9 pins, and A12 pins.
  • the A7 pin and the B7 pin of the fifth pin are connected; the sixth pin is connected with the A5 pin; the seventh pin is connected with the B5 pin ;
  • the eighth pin of the charging protocol chip U3 is connected with the A4 pin, B4 pin, A9 pin and B9 pin, the A1 pin, A12 pin, B1 pin and B12 pin ground.
  • the earphone charging circuit 3 includes a DC/DC power conversion circuit 31, a charging management/lithium battery protection circuit 32, an earphone charging interface 33 and a rechargeable battery 34, and the charging protocol circuit 21 is converted with the DC/DC power source
  • the circuit 31 is electrically connected, the DC/DC power conversion circuit 31 , the charging management/lithium battery protection circuit 32 , and the earphone charging interface 33 are electrically connected in sequence, and the rechargeable battery 34 is electrically connected with the charging management/lithium battery protection circuit 32 , the earphone charging interface 33 is used to charge the earphone, and the rechargeable battery 34 is used to charge the earphone to store energy and charge the earphone.
  • the DC/DC power conversion circuit 31 has a power conversion chip 310 for stabilizing the output voltage at 5V and charging the earphone and the rechargeable battery 34.
  • the power conversion chip 310 has an IN terminal and an OUT terminal.
  • the eighth pin of the protocol chip U3 is connected to the IN terminal, and the OUT terminal is electrically connected to the charging management/lithium battery protection circuit 32 .
  • the charging management/lithium battery protection circuit 32 has a charging management/battery protection chip U5, the charging management/battery protection chip U5 is preferably an FM9688 chip, and the FM9688 chip is respectively connected with the power conversion chip 310, the charging The battery 34 is connected to the earphone charging interface 33 .
  • the photoelectric coupling sensor 160 includes a photoelectric coupling sensor U4-A and a photoelectric coupling sensor U4-B, the photoelectric coupling sensor U4-A and the second pin and the third pin of the charging protocol chip U3 are respectively Electrical connection, the photoelectric coupling sensor U4-B is electrically connected to the third pin of the CX7509C chip U1.
  • the earphone charging compartment 100 with the adapter function has a compartment body 40 , and the AC/DC conversion circuit 1 , the DC power output circuit 2 and the earphone charging circuit 3 are respectively arranged in the compartment body 40 Inside; the bin body 40 is provided with an electrical plug 41 for connecting to an external power source, the bin body 10 has an earphone charging contact, the earphone charging contact is electrically connected with the earphone charging interface 33, and the bin body 40 It also has a charging output interface 43, which is connected to the USB power output interface 22 to charge electronic products; the box body 40 is provided with a receiving slot 44, and the electric plug 41 is reversibly installed in the receiving The slot 44 allows the electrical plug 41 to be folded and accommodated in the receiving slot 44 , and the electrical plug 41 is used for connecting alternating current.
  • the electrical plug 41 is stored in the accommodating slot 44 through rational design of the mechanism, and can be manually rotated out for use when charging is required, and can be rotated and hidden in the accommodating slot 44 after use.
  • insulating material components are used to effectively isolate the PCB boards;
  • the AC alternating current (high voltage 100-240V) and the DC output (low voltage 5-20V) of the DC power output circuit 2 are routed separately for effective and safe isolation;
  • the AC/DC conversion circuit 1 and the DC power output circuit 2 are made of insulating material components. Effective and safe isolation.
  • efficient heat dissipation materials are injected into the cavity of the earphone charging compartment 100 with the adapter function to reduce the temperature rise of the product and improve the heating problem caused by the small size and space of the product.
  • an earphone charging compartment with an adapter function which includes a compartment body, an AC/DC conversion module and a DC/DC conversion module, the AC/DC conversion module and the DC/DC conversion module They are respectively installed in the silo body 40.
  • the silo body 40 is provided with an electric plug 41 for connecting to an external power supply.
  • the silo body 40 has an earphone charging contact.
  • the box body 40 also has a charging output interface 43, and the charging output interface 43 is connected with the AC/DC conversion module to charge the electronic product.
  • the AC/DC conversion module includes the above-mentioned AC/DC conversion circuit
  • the DC/DC conversion module includes the above-mentioned DC/DC conversion circuit.
  • the internal circuit structure of the earphone charging compartment in this embodiment refers to the circuit principle of the previous embodiment, which will not be repeated here.
  • the electrical plug 41 is used for connecting alternating current, the electrical plug 41 is perpendicular to a side or surface of the box body 40 when turned out, and the electrical plug 41 is flush with the side or surface when folded and accommodated in the receiving slot 44 .
  • the DC/DC conversion module is a step-down converter, and the AC/DC conversion module is connected to the DC/DC conversion module for converting the output voltage of the AC/DC conversion module into an earphone DC voltage for charging.
  • the power adapter and the earphone charging compartment are integrated together, making full use of the structural space of the charging compartment, and designing a reasonable expansion function, compact structure and convenient use of the earphone charging compartment with the adapter function 100.
  • the plug 41 is rationally designed through the mechanism, and can be manually rotated out for use when charging. After use, the plug 41 is rotated and hidden in the receiving slot 44, which is convenient to carry and beautiful.

Abstract

本发明涉及一种带适配器功能的耳机充电仓，其包括AC/DC转换电路、直流电源输出电路和耳机充电电路，所述直流电源输出电路设有充电协议电路，所述AC/DC转换电路与充电协议电路电连接，所述充电协议电路与所述耳机充电电路电连接，所述AC/DC转换电路用于接入交流电，并将交流电转换成直流电，所述耳机充电电路用于给耳机充电仓电池和耳机充电，所述直流电源输出电路用于给移动终端充电，产品合二为一，极大的减少了消费者分开购买多件刚需且功能单一的产品容易闲置的概率；最大化优化了产品功能，起到环保引领作用。

Description

带适配器功能的耳机充电仓 技术领域
本发明涉及充电设备技术领域，具体涉及一种带适配器功能的耳机充电仓。
 背景技术
市场上众多的蓝牙耳机都配备充电仓，耳机充电仓方便携带且为耳机充电方便，成为目前手机时尚的标配之一。同时能为手机充电的电源适配器也是手机标配的电子产品。
目前的电源适配器和耳机充电仓是分开独立设计单个产品，两种产品的内部结构和功能的改进都相对较少，这也导致现有充电仓的功能较为单一，结构功能同质化严重，充电仓使用功能受限等问题。
 技术问题
有鉴于此，有必要提供一种带适配器功能的耳机充电仓，将电源适配器和耳机充电仓结合，减少外出时携带的必需配件数量。
 技术解决方案
一种带适配器功能的耳机充电仓，其包括AC/DC转换电路、直流电源输出电路和耳机充电电路，所述直流电源输出电路设有充电协议电路，所述AC/DC转换电路与充电协议电路电连接，所述充电协议电路与所述耳机充电电路电连接，所述AC/DC转换电路用于接入交流电，并将交流电转换成直流电，所述耳机充电电路用于给耳机充电仓电池和耳机充电，所述直流电源输出电路用于给移动终端充电。
优选地，所述AC/DC转换电路包括交流输入端、整流桥堆、高频变压器和同步整流电路，所述交流输入端为所述AC/DC转换电路的输入端，用于接入交流电，所述交流输入端、整流桥堆、高频变压器和同步整流电路依次电连接。
优选地，所述AC/DC转换电路还包括电源主控芯片、光电耦合电路和反馈电路，所述电源主控芯片与所述高频变压器、光电耦合电路及反馈电路分别电连接，所述反馈电路与所述高频变压器电连接，所述光电耦合电路与所述同步整流电路电连接。
优选地，所述直流电源输出电路还包括USB电源输出接口以给所述移动终端充电，所述USB电源输出接口与所述充电协议电路电连接。
优选地，所述耳机充电电路包括DC/DC电源转换电路、充电管理/锂电池保护电路、耳机充电接口和充电电池，所述充电协议电路与所述DC/DC电源转换电路电连接，所述DC/DC电源转换电路、充电管理/锂电池保护电路、耳机充电接口依次电连接，所述充电电池与所述充电管理/锂电池保护电路电连接，所述耳机充电接口用于给耳机充电，所述充电电池用于给耳机充电仓储能及给耳机充电。
优选地，所述充电协议电路具有充电协议芯片，所述充电协议芯片具有多个引脚，多个所述引脚包括第一引脚至第九引脚，所述同步整流电路具有整流芯片，所述第一引脚和第三引脚与所述整流芯片电连接，所述第二引脚和第三引脚分别与所述光电耦合电路电连接。
优选地，所述DC/DC电源转换电路具有电源转换芯片，所述电源转换芯片具有IN端和OUT端，所述充电协议芯片的第八引脚和所述IN端相连，所述OUT端和所述充电管理/锂电池保护电路电连接。
优选地，所述光电耦合电路具有光电耦合传感器，所述光电耦合传感器包括光电耦合传感器U4-A和光电耦合传感器U4-B，所述光电耦合传感器U4-A与所述充电协议芯片电连接，所述光电耦合传感器U4-B和所述电源主控芯片电连接。
优选地，所述带适配器功能的耳机充电仓具有仓体，所述AC/DC转换电路、直流电源输出电路和耳机充电电路分别设于所述仓体内；所述仓体设有电插头、耳机充电触点和充电输出接口，所述电插头用于接外部电源，所述耳机充电触点与耳机充电接口电性连接，所述充电输出接口与USB电源输出接口连接以给电子产品充电。
优选地，所述仓体还设有收容槽，所述电插头可翻转地装于所述收容槽以使所述电插头折叠收容于收容槽内，电插头用于接插交流电。
以及，一种带适配器功能的耳机充电仓，其包括仓体、AC/DC转换模块和DC/DC转换模块，所述AC/DC转换模块和DC/DC转换模块分别装于仓体内，所述仓体设有用于接外部电源的电插头，所述仓体内具有耳机充电触点，所述耳机充电触点与DC/DC转换模块电性连接，所述仓体还具有充电输出接口，所述充电输出接口与AC/DC转换模块连接以给电子产品充电。
优选地，所述仓体还设有收容槽，所述电插头可翻转地装于所述收容槽以使所述电插头折叠收容于收容槽内，电插头用于接插交流电，所述电插头翻转出时垂直于仓体一个侧面或表面，所述电插头折起收容于收容槽时与侧面或表面平齐。
优选地，所述DC/DC转换模块为一个降压变换器，所述AC/DC转换模块与DC/DC转换模块连接，用于将AC/DC转换模块的输出电压转换为耳机充电用的直流电压。
 有益效果
上述带适配器功能的耳机充电仓中，设有AC/DC转换电路、直流电源输出电路和耳机充电电路，AC/DC转换电路用于接入交流电，并将交流电转换成直流电，耳机充电电路用于给耳机充电仓电池和耳机充电，直流电源输出电路用于给移动终端充电，可以同时为终端、耳机、耳机充电仓充电，减少外出携带的必需配件数量，改进充电仓的功能，不需要每种电子产品配一个适配器充电，提高了消费者工作生活的效率；产品合二为一，极大的减少了消费者分开购买多件刚需且功能单一的产品容易闲置的概率；最大化优化了产品功能，起到环保引领作用。
 附图说明
图1是本发明实施例提供的带适配器功能的耳机充电仓的结构框图示意图。
图2是本发明实施例提供的带适配器功能的耳机充电仓的电路结构示意图。
图3是本发明实施例提供的带适配器功能的耳机充电仓的打开状态的立体结构示意图。
图4是本发明实施例提供的带适配器功能的耳机充电仓的立体结构示意图。
 本发明的实施方式
以下将结合具体实施例和附图对本发明进行详细说明。
请参阅图1，示出本发明实施例的一种带适配器功能的耳机充电仓100，其包括AC/DC转换电路1、直流电源输出电路2和耳机充电电路3，所述直流电源输出电路2设有充电协议电路21，所述AC/DC转换电路1与充电协议电路21电连接，所述充电协议电路21与所述耳机充电电路3电连接，所述AC/DC转换电路1用于接入AC100-240V交流电，并将交流电转换成直流电，经电路处理后分两路对应输出给直流电源输出电路2和耳机充电电路3；所述耳机充电电路3用于输出直流电源给耳机充电仓电池和耳机充电，所述直流电源输出电路2用于输出5至20V直流电源给移动终端充电，所述终端包括手机、电脑、平板电脑、移动电源等电子产品。进一步地，所述AC/DC转换电路1、直流电源输出电路2和耳机充电电路3分别按区域合理放置元器件，减少各部分电路之间电气信号的相互干扰。
优选地，所述AC/DC转换电路1包括交流输入端11、整流桥堆12、高频变压器13和同步整流电路14，所述交流输入端11为所述AC/DC转换电路1的输入端，用于接入AC100-240V交流电，所述交流输入端11、整流桥堆12、高频变压器13和同步整流电路14依次首尾电连接。
请结合图1参阅图2，所述整流桥堆12和高频变压器13之间还设有滤波电路18，所述滤波电路18具有电容和电感，用于储能滤波及抗电磁干扰。具体地，所述电容包括有极电容EC1和有极电容EC2，所述电感包括电感L1和电感L2，所述电感L1的两端与所述有极电容EC1、有极电容EC2的负极对应相连，所述电感L2的两端与所述有极电容EC1、有极电容EC2的正极一一对应相连，两个所述有极电容的负极还通过电阻R1相连，即电阻R1与所述电感L1并联；所述有极电容EC1两级分别与输入整流桥堆相连，所述有极电容EC2的正极与高频变压器13相连，所述有极电容EC2的负极与电感L1相连后接地。
具体地，所述高频变压器13具有高频变压器初级线圈131和高频变压器次级线圈132，所述高频变压器初级线圈131与所述滤波电路18相连，所述高频变压器次级线圈132与所述同步整流电路14相连；所述高频变压器13还具有有效安全隔离AC/DC转换电路1和直流电源输出电路2的作用。
具体地，所述同步整流电路14具有同步整流芯片U2和大容量电容EC4，所述大容量电容EC4一端和所述整流芯片U2的一个引脚相连，另一端接地，用于输出储能滤波和抗电磁干扰；所述同步整流芯片U2优选为CX7538B芯片，所述同步整流芯片U2和所述高频变压器次级线圈132相连，用于输出提供稳定的直流电源。
优选地，所述AC/DC转换电路1还包括电源主控芯片15、光电耦合电路16和反馈电路17，所述电源主控芯片15与所述高频变压器13、光电耦合电路16及反馈电路17分别电连接，所述反馈电路17与所述高频变压器13电连接，所述光电耦合电路16与所述同步整流电路14电连接。具体地，所述AC/DC转换电路1内各器件之间按照设计的安全间距（优选为6mm以上）设置。
具体地，所述电源主控芯片15优选为CX7509C芯片U1，内建多重保护；所述光电耦合电路16具有光电耦合传感器160，通过光电转换同步输入输出，有效安全隔离交流高压与直流低压；所述CX7509C芯片U1分别与所述高频变压器初级线圈131、光电耦合传感器160及反馈电路17相连，用于稳定输出电压。
具体地，所述CX7509C芯片U1具有第1引脚-第8引脚，所述第5引脚-第8引脚分别与所述高频变压器13的高频变压器初级线圈131电连接，所述第2引脚在连接电阻R3、电阻R2后和与有极电容EC2的正极电连接；所述第4引脚连接两个并联电阻后接地，所述底1引脚接地；所述第3引脚和光电耦合传感器160电连接。所述反馈电路17包括高频电压器反馈级线圈、有极电容EC3、电容C2、电阻R6和二极管D2，所述有极电容EC3和电容C2并联，所述高频电压器反馈级线圈一端与有极电容EC3的负极、电容C2分别相连，所述高频电压器反馈级线圈另一端与二极管D2的正极相连，所述二极管D2的负极和电阻R6相连，电阻R6的另一端与有极电容EC3的正极、电容C2分别相连；所述电容C2一端与所述CX7509C芯片U1的第2引脚相连，所述电容C2另一端与所述光电耦合传感器160相连。
优选地，所述直流电源输出电路2还包括USB电源输出接口22以给所述移动终端充电，所述USB电源输出接口22与所述充电协议电路21电连接。
优选地，所述充电协议电路21具有充电协议芯片U3，所述充电协议芯片U3优选为CX2919C芯片，自带有TYPE-C协议，所述CX2919C芯片具有多个引脚，多个所述引脚包括第一引脚至第九引脚，所述第一引脚和第三引脚与所述同步整流电路14电连接，所述第二引脚和第三引脚分别与所述光电耦合电路16电连接，有效安全隔离交流高压和直流低压，第九引脚接地。具体地，所述CX2919C芯片自带的TYPE-C协议可以支持TYPE-C设备插入自动唤醒，智能识别插头的正反插，并实现连接；智能识别并输出符合协议的电压电流为手机，电脑，平板电脑，移动电源等电子产品智能充电，同时具有完备的OVP、OCP、UVP等保护功能。
优选地，所述USB电源输出接口22具有TYPE-C芯片，所述TYPE-C芯片具有A1引脚、A4引脚、A5引脚、A6引脚、A7引脚、A9引脚、A12引脚、B1引脚、B4引脚、B5引脚、B6引脚、B7引脚、B9引脚和B12引脚，所述充电协议芯片U3的第四引脚和所述A6引脚、B6引脚相接；所述第五引脚所述A7引脚、B7引脚相接；所述第六引脚和所述A5引脚相接；所述第七引脚和所述B5引脚相接；所述充电协议芯片U3的第八引脚和和所述A4引脚、B4引脚、A9引脚和B9引脚连接，所述A1引脚、A12引脚、B1引脚和B12引脚接地。
优选地，所述耳机充电电路3包括DC/DC电源转换电路31、充电管理/锂电池保护电路32、耳机充电接口33和充电电池34，所述充电协议电路21与所述DC/DC电源转换电路31电连接，所述DC/DC电源转换电路31、充电管理/锂电池保护电路32、耳机充电接口33依次电连接，所述充电电池34与所述充电管理/锂电池保护电路32电连接，所述耳机充电接口33用于给耳机充电，所述充电电池34用于给耳机充电仓储能及给耳机充电。
优选地，所述DC/DC电源转换电路31具有电源转换芯片310用于将输出电压稳定在5V，为耳机和充电电池34充电，所述电源转换芯片310具有IN端和OUT端，所述充电协议芯片U3的第八引脚和所述IN端相连，所述OUT端和所述充电管理/锂电池保护电路32电连接。
进一步地，所述充电管理/锂电池保护电路32具有充电管理/电池保护芯片U5，所述充电管理/电池保护芯片U5优选为FM9688芯片，所述FM9688芯片分别与所述电源转换芯片310、充电电池34和耳机充电接口33相连。
优选地，所述光电耦合传感器160包括光电耦合传感器U4-A和光电耦合传感器U4-B，所述光电耦合传感器U4-A与所述充电协议芯片U3的第二引脚、第三引脚分别电连接，所述光电耦合传感器U4-B和所述CX7509C芯片U1的第3引脚电连接。
请参阅图3和图4，所述带适配器功能的耳机充电仓100具有仓体40，所述AC/DC转换电路1、直流电源输出电路2和耳机充电电路3分别设于所述仓体40内；所述仓体40设有用于接外部电源的电插头41，所述仓体10内具有耳机充电触点，所述耳机充电触点与耳机充电接口33电性连接，所述仓体40还具有充电输出接口43，所述充电输出接口43与USB电源输出接口22连接以给电子产品充电；所述仓体40设有收容槽44，所述电插头41可翻转地装于所述收容槽44以使所述电插头41折叠收容于收容槽44内，电插头41用于接插交流电。所述电插头41通过机构合理设计，收纳在收容槽44内，需充电时可手动旋转出来使用，使用完可以旋转隐藏在收容槽44。
进一步地，在所述带适配器功能的耳机充电仓100内，为了用电安全和减少电路之间的相互干扰，各PCB板之间用绝缘材料组件做有效安全隔离；AC/DC转换电路1中的AC交流电（高压100-240V）和直流电源输出电路2的直流输出（低压5-20V）线路分开走线，有效安全隔离；AC/DC转换电路1与直流电源输出电路2通过绝缘材料组件做有效安全隔离。另外，还在带适配器功能的耳机充电仓100腔体内注入高效散热材料，减少产品温升，改善产品因体积和空间小造成的发热问题。
在本发明另一实施例中，提供一种带适配器功能的耳机充电仓，其包括仓体、AC/DC转换模块和DC/DC转换模块，所述AC/DC转换模块和DC/DC转换模块分别装于仓体40内，所述仓体40设有用于接外部电源的电插头41，所述仓体40内具有耳机充电触点，所述耳机充电触点与DC/DC转换模块电性连接，所述仓体40还具有充电输出接口43，所述充电输出接口43与AC/DC转换模块连接以给电子产品充电。AC/DC转换模块包括上述 AC/DC转换电路，DC/DC转换模块包括上述 DC/DC转换电路。本实施例的耳机充电仓内部电路结构参照前述实施例的电路原理，在此不再赘述。
另外，电插头41用于接插交流电，所述电插头41翻转出时垂直于仓体40一个侧面或表面，所述电插头41折起收容于收容槽44时与侧面或表面平齐。在一个具体实施例中，所述DC/DC转换模块为一个降压变换器，所述AC/DC转换模块与DC/DC转换模块连接，用于将AC/DC转换模块的输出电压转换为耳机充电用的直流电压。
上述带适配器功能的耳机充电仓100中，将电源适配器与耳机充电仓整合在一起，充分利用充电仓的结构空间，设计出合理扩展功能，且结构紧凑、使用方便的带适配器功能的耳机充电仓100，将手机标配的两种市场刚需外设产品的单功能产品变为合二为一的多功能产品；通过在安全距离内设置电路元器件，将电路之间的影响降到最低；电插头41通过机构合理设计，需充电时可手动旋转出来使用，使用完旋转隐藏在收容槽44内，方便携带且美观。
需要说明的是，本发明并不局限于上述实施方式，根据本发明的创造精神，本领域技术人员还可以做出其他变化，这些依据本发明的创造精神所做的变化，都应包含在本发明所要求保护的范围之内。

Claims (12)

  1. 一种带适配器功能的耳机充电仓，其特征在于，包括AC/DC转换电路、直流电源输出电路和耳机充电电路，所述直流电源输出电路设有充电协议电路，所述AC/DC转换电路与充电协议电路电连接，所述充电协议电路与所述耳机充电电路电连接，所述AC/DC转换电路用于接入交流电，并将交流电转换成直流电，所述耳机充电电路用于给耳机充电仓电池和耳机充电，所述直流电源输出电路用于给移动终端充电。
  2. 如权利要求1所述的带适配器功能的耳机充电仓，其特征在于，所述AC/DC转换电路包括交流输入端、整流桥堆、高频变压器和同步整流电路，所述交流输入端为所述AC/DC转换电路的输入端，用于接入交流电，所述交流输入端、整流桥堆、高频变压器和同步整流电路依次电连接。
  3. 如权利要求2所述的带适配器功能的耳机充电仓，其特征在于，所述AC/DC转换电路还包括电源主控芯片、光电耦合电路和反馈电路，所述电源主控芯片与所述高频变压器、光电耦合电路及反馈电路分别电连接，所述反馈电路与所述高频变压器电连接，所述光电耦合电路与所述同步整流电路电连接。
  4. 如权利要求3所述的带适配器功能的耳机充电仓，其特征在于，所述直流电源输出电路还包括USB电源输出接口以给所述移动终端充电，所述USB电源输出接口与所述充电协议电路电连接。
  5. 如权利要求4所述的带适配器功能的耳机充电仓，其特征在于，所述耳机充电电路包括DC/DC电源转换电路、充电管理/锂电池保护电路、耳机充电接口和充电电池，所述充电协议电路与所述DC/DC电源转换电路电连接，所述DC/DC电源转换电路、充电管理/锂电池保护电路、耳机充电接口依次电连接，所述充电电池与所述充电管理/锂电池保护电路电连接，所述耳机充电接口用于给耳机充电，所述充电电池用于给耳机充电仓储能及给耳机充电。
  6. 如权利要求5所述的带适配器功能的耳机充电仓，其特征在于，所述充电协议电路具有充电协议芯片，所述充电协议芯片具有多个引脚，多个所述引脚包括第一引脚至第九引脚，所述同步整流电路具有整流芯片，所述第一引脚和第三引脚与所述整流芯片电连接，所述第二引脚和第三引脚分别与所述光电耦合电路电连接。
  7. 如权利要求6所述的带适配器功能的耳机充电仓，其特征在于，所述DC/DC电源转换电路具有电源转换芯片，所述电源转换芯片具有IN端和OUT端，所述充电协议芯片的第八引脚和所述IN端相连，所述OUT端和所述充电管理/锂电池保护电路电连接。
  8. 如权利要求6所述的带适配器功能的耳机充电仓，其特征在于，所述光电耦合电路具有光电耦合传感器，所述光电耦合传感器包括光电耦合传感器U4-A和光电耦合传感器U4-B，所述光电耦合传感器U4-A与所述充电协议芯片电连接，所述光电耦合传感器U4-B和所述电源主控芯片电连接。
  9. 如权利要求5所述的带适配器功能的耳机充电仓，其特征在于，所述带适配器功能的耳机充电仓具有仓体，所述AC/DC转换电路、直流电源输出电路和耳机充电电路分别设于所述仓体内；所述仓体设有电插头、耳机充电触点和充电输出接口，所述电插头用于接外部电源，所述耳机充电触点与耳机充电接口电性连接，所述充电输出接口与USB电源输出接口连接以给电子产品充电。
  10. 一种带适配器功能的耳机充电仓，其特征在于，包括仓体、AC/DC转换模块和DC/DC转换模块，所述AC/DC转换模块和DC/DC转换模块分别装于仓体内，所述仓体设有用于接外部电源的电插头，所述仓体内具有耳机充电触点，所述耳机充电触点与DC/DC转换模块电性连接，所述仓体还具有充电输出接口，所述充电输出接口与AC/DC转换模块连接以给电子产品充电。
  11. 如权利要求1或10所述的带适配器功能的耳机充电仓，其特征在于，所述仓体还设有收容槽，所述电插头可翻转地装于所述收容槽以使所述电插头折叠收容于收容槽内，电插头用于接插交流电，所述电插头翻转出时垂直于仓体一个侧面或表面，所述电插头折起收容于收容槽时与侧面或表面平齐。
  12. 如权利要求10所述的带适配器功能的耳机充电仓，其特征在于，所述DC/DC转换模块为一个降压变换器，所述AC/DC转换模块与DC/DC转换模块连接，用于将AC/DC转换模块的输出电压转换为耳机充电用的直流电压。
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