CN112491100A - Charging system of TWS earphone - Google Patents
Charging system of TWS earphone Download PDFInfo
- Publication number
- CN112491100A CN112491100A CN201910861012.6A CN201910861012A CN112491100A CN 112491100 A CN112491100 A CN 112491100A CN 201910861012 A CN201910861012 A CN 201910861012A CN 112491100 A CN112491100 A CN 112491100A
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- China
- Prior art keywords
- charging
- tws
- tws earphone
- earphone
- power supply
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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
- 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
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a charging system of a TWS earphone. The charging system includes a TWS headset and a charging box; the charging box is provided with an accommodating cavity, the accommodating cavity is provided with a power supply end and a charging port, and the power supply end is grounded through a resistor; a switch is arranged between the power supply end and the charging port, when the charging box is closed, the switch is in a closed state, and when the charging box is opened, the switch is in an open state; the TWS earphone is provided with a charging end, a receiving end and a controlled end are arranged on the charging end, when the controlled end is at a high level, the TWS earphone is powered off, and when the controlled end is at a low level, the TWS earphone is powered on; a field effect tube is arranged between the controlled end and the power receiving end. According to the invention, because the charging box is not provided with a built-in battery, the production cost of the charging box can be effectively reduced, and the weight of the charging box can be reduced. In addition, the invention can realize the automatic shutdown of the TWS earphone when the controlled end of the TWS earphone is changed into high level; when the controlled end of the TWS earphone is changed into low level, the automatic start-up of the TWS earphone is realized.
Description
Technical Field
The invention relates to the technical field of Bluetooth earphones, in particular to a charging system of a TWS earphone.
Background
With the continuous development of electronic technology and the continuous improvement of the requirements of people on electronic products, the existing wireless earphone not only meets the basic call function of people, but also becomes a good helper for people to listen to music and broadcast and relax mood. The latest TWS (True Wireless Stereo) headset is rapidly becoming a new favorite of music enthusiasts due to its ultra-high tone quality and ultra-portability.
The TWS earphone is composed of a master earphone and a slave earphone, the existing TWS earphone transmits an audio signal of a mobile phone to the master earphone through a Bluetooth link by a Bluetooth technology, and the master earphone transmits audio data to the slave earphone so as to achieve the purpose of simultaneously playing two ears.
In the prior art, when the earphones are charged, the earphones are usually placed in a charging box, the TWS earphone charging box on the market at present has a built-in battery, the built-in battery is used for charging the TWS earphones, the other function is used for providing on-off logic for the TWS, however, with the development of chip technology, the earphone power consumption is smaller and smaller, the earphone power consumption is reduced to a plurality of mA at present, the battery capacity of the TWS earphones can be continuously operated for more than twenty hours, the batteries and charging, boosting and control circuits matched with the batteries are not required to be placed in the TWS earphone charging box, and meanwhile, related components for charging the batteries are not required to be arranged in the charging box.
Disclosure of Invention
It is an object of the present invention to provide a charging system for a TWS headset that may solve one or more of the above mentioned problems of the prior art.
According to an aspect of the present invention, there is provided a charging system of a TWS headset, including a TWS headset and a charging box;
the charging box is provided with an accommodating cavity for placing a TWS earphone, and the accommodating cavity is provided with a power supply end and a charging port;
the power supply end is used for charging the TWS earphone and is grounded through a resistor;
the power supply end is connected with an external power supply through the charging port, a switch is arranged between the power supply end and the charging port, when the charging box is closed, the switch is in a closed state, and when the charging box is opened, the switch is in an open state;
the TWS earphone is provided with a charging end, a power receiving end electrically connected with the power supply end and a controlled end used for controlling the TWS earphone to be turned on and turned off are arranged on the charging end, when the controlled end is at a high level, the TWS earphone is turned off, and when the controlled end is at a low level, the TWS earphone is turned on;
and a field effect tube is arranged between the controlled end and the power receiving end, the grid electrode of the field effect tube is connected with the power receiving end, the source electrode of the field effect tube is connected with the controlled end, and the drain electrode of the field effect tube is grounded.
The invention has the beneficial effects that: in the charging system of the TWS earphone provided by the invention, because the charging box is not provided with a built-in battery, the production cost of the charging box can be effectively reduced, and meanwhile, the weight of the charging box can be reduced, so that the volume of the charging box can be reduced. In addition, the invention can realize the automatic shutdown of the TWS earphone when the controlled end of the TWS earphone is changed into high level; when the controlled end of the TWS earphone is changed into low level, the automatic start-up of the TWS earphone is realized.
In some embodiments, a first magnet for fixing the TWS headset is disposed in the accommodating cavity, and a second magnet corresponding to the first magnet is disposed inside the charging end to detachably connect the TWS headset and the accommodating cavity. Therefore, when the TWS earphone is required to be used, the TWS earphone can be conveniently taken out of the charging box, when the TWS earphone is not required to be used, the TWS earphone and the charging box can be adsorbed together through the first magnet and the second magnet, the two are fixedly connected, and at the moment, the charging box can charge the TWS earphone through the external power supply.
In some embodiments, a bluetooth chip and a rechargeable battery connected to the bluetooth chip are disposed inside the TWS headset, and the power receiving terminal and the controlled terminal are terminals connected to power pins and power on/off control pins of the bluetooth chip in a one-to-one correspondence manner. Thus, the effect of. Thus, the internal structure of the TWS earphone can be simplified by the arrangement.
In some embodiments, the rechargeable battery is a rechargeable lithium battery. Therefore, the service life of the rechargeable battery can be effectively prolonged by adopting the rechargeable lithium battery as the rechargeable battery in the TWS earphone.
In some embodiments, the charging port is a USB interface, and the charging box can be connected to a mobile phone, a tablet computer, a notebook computer, or a power adapter through the charging port. Therefore, the charging port is set to be the USB interface, so that the charging box can be connected with a mobile phone, a tablet computer, a notebook computer or a power adapter more conveniently, and the TWS earphone can be charged more conveniently.
In some embodiments, the cell phone charges the TWS headset via OTG mode. Therefore, when a user is outdoors, once the earphone has no electric quantity and needs to be charged, the charging box can be connected with a charging interface of electronic equipment such as a mobile phone of the user, the electronic equipment such as the mobile phone charges the TWS earphone through an OTG mode, and the battery capacity of the TWS earphone is usually smaller than 100mAH, so that the influence on the electric quantity of the electronic equipment such as the mobile phone is small, and the influence on the normal use of the electronic equipment such as the mobile phone is avoided.
In some embodiments, the TWS headset is further provided with a voltage detection circuit inside, and when the voltage detection circuit detects that the charging port has a voltage input of 5V, the TWS headset enters a charging state. Therefore, when the TWS earphone is placed in the accommodating cavity in the charging box and the charging box is closed, once the voltage detection circuit in the TWS earphone detects that the charging port has 5V voltage input, the internal logic circuit of the TWS earphone triggers resetting, so that the TWS earphone enters a charging state.
Drawings
Fig. 1 is a schematic circuit diagram of a charging box in a charging system of a TWS headset according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a TWS headset in a charging system of the TWS headset according to an embodiment of the present invention.
Wherein the reference numbers are as follows:
a power supply terminal-110; charging port-120; a power receiving terminal-210; controlled end-220.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
Fig. 1 and 2 schematically show a charging system for a TWS headset according to an embodiment of the present invention. The charging system of the TWS headset includes a TWS headset and a charging box.
As shown in fig. 1, the charging box is provided with an accommodating cavity for placing the TWS headset, the accommodating cavity is provided with a power supply terminal 110 and a charging port 120, the power supply terminal 110 is used for charging the TWS headset, and the power supply terminal 110 is grounded through a resistor R3.
The power supply terminal 110 is connected to an external power source through the charging port 120, a switch S1 is provided between the power supply terminal 110 and the charging port 120, the switch S1 is in a closed state when the charging box is closed, and the switch S1 is in an open state when the charging box is opened.
The TWS headset has a charging terminal, and the charging terminal is provided with a power receiving terminal 210 for electrically connecting with the power supply terminal 110 and a controlled terminal 220 for controlling the TWS headset to be turned on or off.
Preferably, a bluetooth chip and a rechargeable battery connected to the bluetooth chip are disposed inside the TWS headset, and the power receiving terminal 210 and the controlled terminal 220 are lead-out terminals connected to power pins and power on/off control pins of the bluetooth chip in a one-to-one correspondence manner. Thus, the internal structure of the TWS earphone can be simplified by the arrangement.
Optionally, the rechargeable battery is a rechargeable lithium battery. Therefore, the service life of the rechargeable battery can be effectively prolonged by adopting the rechargeable lithium battery as the rechargeable battery in the TWS earphone.
A field effect transistor Q1 is arranged between the controlled end 220 and the power receiving end 210, the gate of the field effect transistor Q1 is connected with the power receiving end 210, the source of the field effect transistor Q1 is connected with the controlled end 220, and the drain of the field effect transistor Q1 is grounded.
When the controlled terminal 220 is at a high level, the TWS headset is turned off, and when the controlled terminal 220 is at a low level, the TWS headset is turned on. Therefore, when the TWS headset needs to be turned off after being used up, the TWS headset can be directly placed into the accommodating cavity of the charging box, at this time, the power supply end 110 on the charging box is connected with the power receiving end 210 of the TWS headset, because the power receiving end 210 of the TWS headset outputs a weak level of 1-2V when in work, when the TWS headset is placed into the accommodating cavity of the charging box and the charging box is closed, the switch S1 between the power supply end 110 and the charging port 120 is closed, the resistor R3 pulls down the voltage of the power receiving end 210 to 0V, the controlled end 220 of the TWS headset changes from the original low level to the high level, and the internal logic circuit of the main chip (bluetooth chip) of the TWS headset closes the main chip, so that the TWS headset is turned off.
When the TWS headset is taken out of the charging box, the power receiving end 210 of the TWS headset is disconnected from the power supply end 110 of the charging box, at this time, because the connection between the power receiving end 210 of the TWS headset and the resistor R3 is disconnected, the power receiving end 210 becomes high level due to no load, at this time, the controlled end 220 of the TWS headset changes from high level to low level, and when the internal logic circuit of the TWS headset detects that the controlled end 220 becomes low level, the TWS headset is triggered to be turned on.
Optionally, a voltage detection circuit may be further disposed inside the TWS headset, and when the voltage detection circuit detects that the charging port 120 has a voltage input of 5V, the TWS headset enters a charging state. Therefore, when the TWS earphone is placed in the accommodating cavity in the charging box and the charging box is closed, once the voltage detection circuit in the TWS earphone detects that the charging port 120 has 5V voltage input, the internal logic circuit of the main chip of the TWS earphone triggers resetting, so that the TWS earphone enters a charging state.
Optionally, the charging port 120 is a USB interface, and the charging box can be connected to a mobile phone, a tablet computer, a notebook computer, or a power adapter through the charging port 120. Therefore, by setting the charging port 120 as a USB interface, it may be more convenient to connect the charging box with a mobile phone, a tablet computer, a notebook computer or a power adapter, so as to more conveniently charge the TWS headset.
Optionally, the TWS headset is charged by the mobile phone through an OTG mode. Therefore, when a user is outdoors, once the earphone has no electric quantity and needs to be charged, the charging box can be connected with a charging interface of electronic equipment such as a mobile phone of the user, the TWS earphone is charged by the electronic equipment such as the mobile phone through an OTG mode, and the battery capacity of the TWS earphone is usually smaller than 100mAH, so that the influence on the electric quantity of the electronic equipment such as the mobile phone is small, and the influence on the normal use of the electronic equipment such as the mobile phone is avoided.
Optionally, a first magnet for fixing the TWS headset is disposed in the accommodating cavity, and a second magnet corresponding to the first magnet is disposed in the charging end, so that the TWS headset is detachably connected to the accommodating cavity. Therefore, when the TWS earphone is required to be used, the TWS earphone can be conveniently taken out of the charging box, when the TWS earphone is not required to be used, the TWS earphone and the charging box can be adsorbed together through the first magnet and the second magnet, the two are fixedly connected, and at the moment, the charging box can charge the TWS earphone through the external power supply.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept herein, and it is intended to cover all such modifications and variations as fall within the scope of the invention.
Claims (7)
1. A charging system of a TWS headset is characterized by comprising the TWS headset and a charging box;
the charging box is provided with an accommodating cavity for placing a TWS earphone, and the accommodating cavity is provided with a power supply end and a charging port;
the power supply end is used for charging the TWS earphone and is grounded through a resistor;
the power supply end is connected with an external power supply through the charging port, a switch is arranged between the power supply end and the charging port, when the charging box is closed, the switch is in a closed state, and when the charging box is opened, the switch is in an open state;
the TWS earphone is provided with a charging end, a power receiving end electrically connected with the power supply end and a controlled end used for controlling the TWS earphone to be turned on and turned off are arranged on the charging end, when the controlled end is at a high level, the TWS earphone is turned off, and when the controlled end is at a low level, the TWS earphone is turned on;
and a field effect tube is arranged between the controlled end and the power receiving end, the grid electrode of the field effect tube is connected with the power receiving end, the source electrode of the field effect tube is connected with the controlled end, and the drain electrode of the field effect tube is grounded.
2. The charging system for a TWS earphone according to claim 1, wherein a first magnet for fixing the TWS earphone is disposed in the accommodating chamber, and a second magnet corresponding to the first magnet is disposed in the charging terminal to detachably connect the TWS earphone and the accommodating chamber.
3. The charging system of a TWS earphone according to claim 1, wherein a Bluetooth chip and a rechargeable battery connected to the Bluetooth chip are disposed inside the TWS earphone, and the power receiving terminal and the controlled terminal are terminals connected to a power pin and an on/off control pin of the Bluetooth chip in a one-to-one correspondence manner.
4. The charging system for a TWS headset of claim 3, wherein the rechargeable battery is a rechargeable lithium battery.
5. The charging system for a TWS headset according to claim 1, wherein the charging port is a USB port, and the charging box is capable of connecting to a mobile phone, a tablet pc, a notebook pc, or a power adapter through the charging port.
6. The charging system for a TWS headset of claim 5, wherein the cell phone charges the TWS headset via OTG mode.
7. The charging system for a TWS headset according to any one of claims 1 to 6, wherein a voltage detection circuit is further provided inside the TWS headset, and when the voltage detection circuit detects that the charging port has a voltage input of 5V, the TWS headset enters a charging state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910861012.6A CN112491100A (en) | 2019-09-11 | 2019-09-11 | Charging system of TWS earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910861012.6A CN112491100A (en) | 2019-09-11 | 2019-09-11 | Charging system of TWS earphone |
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| Publication Number | Publication Date |
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| CN112491100A true CN112491100A (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910861012.6A Pending CN112491100A (en) | 2019-09-11 | 2019-09-11 | Charging system of TWS earphone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220286768A1 (en) * | 2021-03-03 | 2022-09-08 | Luxshare-Ict Co., Ltd. | Earphone system and communication method between charging box and earphone |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207835091U (en) * | 2017-12-19 | 2018-09-07 | 歌尔科技有限公司 | Charging box |
| CN108924691A (en) * | 2018-09-04 | 2018-11-30 | 广州由我科技股份有限公司 | A kind of bluetooth headset and its charge cabin, charging system |
| US20190223192A1 (en) * | 2018-01-12 | 2019-07-18 | Qualcomm Incorporated | Time slot reassignment mechanism for radio access technology coexistence improvement |
-
2019
- 2019-09-11 CN CN201910861012.6A patent/CN112491100A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207835091U (en) * | 2017-12-19 | 2018-09-07 | 歌尔科技有限公司 | Charging box |
| US20190223192A1 (en) * | 2018-01-12 | 2019-07-18 | Qualcomm Incorporated | Time slot reassignment mechanism for radio access technology coexistence improvement |
| CN108924691A (en) * | 2018-09-04 | 2018-11-30 | 广州由我科技股份有限公司 | A kind of bluetooth headset and its charge cabin, charging system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220286768A1 (en) * | 2021-03-03 | 2022-09-08 | Luxshare-Ict Co., Ltd. | Earphone system and communication method between charging box and earphone |
| US11564028B2 (en) * | 2021-03-03 | 2023-01-24 | Luxshare-Ict Co., Ltd. | Earphone system and communication method between charging box and earphone |
| US20230077395A1 (en) * | 2021-03-03 | 2023-03-16 | Luxshare-Ict Co., Ltd. | Earphone system and communication method between charging box and earphone |
| US20230077453A1 (en) * | 2021-03-03 | 2023-03-16 | Luxshare-Ict Co., Ltd. | Earphone system and communication method between charging box and earphone |
| US11950042B2 (en) * | 2021-03-03 | 2024-04-02 | Luxshare-Ict Co., Ltd. | Earphone system and communication method between charging box and earphone |
| US11950043B2 (en) * | 2021-03-03 | 2024-04-02 | Luxshare-Ict Co., Ltd. | Earphone system and communication method between charging box and earphone |
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Effective date of registration: 20211126 Address after: 337011 Jinshan Town, Shangli County, Pingxiang City, Jiangxi Province (Shangli Industrial Park) Applicant after: Jiangxi Jiahe electroacoustic technology Co.,Ltd. Address before: 523808 rooms 306, 308 and 310, building 1, no.6, Gongye South Road, Songshanhu high tech Industrial Development Zone, Dongguan City, Guangdong Province Applicant before: GUANGDONG SPARK TECHNOLOGY Co.,Ltd. |
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Application publication date: 20210312 |