CN111628578A - A multifunctional bluetooth earphone charging device - Google Patents
A multifunctional bluetooth earphone charging device Download PDFInfo
- Publication number
- CN111628578A CN111628578A CN202010547837.3A CN202010547837A CN111628578A CN 111628578 A CN111628578 A CN 111628578A CN 202010547837 A CN202010547837 A CN 202010547837A CN 111628578 A CN111628578 A CN 111628578A
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- circuit board
- power supply
- charging
- plug
- bluetooth headset
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- 238000007599 discharging Methods 0.000 claims abstract description 10
- 230000005611 electricity Effects 0.000 claims abstract description 8
- 230000005389 magnetism Effects 0.000 claims description 6
- 230000002441 reversible effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- 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
- H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the 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)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to a multifunctional Bluetooth headset charging device which comprises a shell, wherein a headset groove is formed in the shell and used for placing a Bluetooth headset and charging the Bluetooth headset; still be equipped with plug terminal head and circuit board in the casing, plug terminal head can be used for to power supply unit charges in the casing, the circuit board is connected with plug terminal head electricity, the circuit board is connected with power supply unit electricity. According to the invention, the plug-in terminal head is arranged in the shell, and the built-in circuit board and the power supply device are combined, so that the Bluetooth headset charging seat and the adapter are integrated, the Bluetooth headset charging seat is convenient to carry outside, and the applicability is strong; meanwhile, wireless charging and discharging can be realized by utilizing the wireless charging module, so that the use functionality is improved; the electrode needle base is combined, and the contact charging function of the electrode needle is utilized, so that the external electronic terminal can conveniently realize contact charging.
Description
Technical Field
The invention relates to the technical field of charging devices, in particular to a multifunctional Bluetooth headset charging device.
Background
The Bluetooth earphone adopts Bluetooth wireless transmission, can realize wireless signal transmission with a mobile phone, is convenient for a user to listen to songs, make a call and the like, and is popular among the majority of users. But bluetooth headset's charging then brings the vexation for the user, and traditional bluetooth headset charging process needs external data to charge, and such defect is, can not charge anytime and anywhere when going on a journey to need find the place that charges after the bluetooth headset electric quantity exhausts and just can continue to charge and resume the use, still need carry the charging wire simultaneously, make bluetooth headset's use have the limitation.
Therefore, the publication number is CN207518812U, which discloses a charging seat for bluetooth earphones, comprising a shell with an opening, wherein a circuit board, a charging pin, a power supply, a power switch and a charging connector are arranged in the shell; a fixed seat is arranged in the shell, the fixed seat is fixed at the opening of the shell and is provided with a hollow cylinder body through which the tail part of the earphone can pass and a placement groove matched with the head part of the earphone is arranged on one side far away from the shell; the circuit board is fixed in the shell, the charging contact pin is fixed on one side of the circuit board facing the opening of the shell, and the power supply is fixed on one side of the circuit board opposite to the charging contact pin; the power switch and the charging connector are fixed on the circuit board, and the shell is provided with a first through hole and a second through hole which respectively correspond to the power switch and the charging connector; the power supply, the power switch, the charging connector and the charging contact pin are all conducted with the circuit of the circuit board. The utility model provides a bluetooth headset charging seat, it is small, can be as bluetooth headset's receiver and charge for bluetooth headset simultaneously, portable, convenient to use.
Above-mentioned product is the charging seat that bluetooth headset used commonly among the prior art, but the power still need dispose adapter and charging wire in addition in this charging seat and just can realize charging, and current most of users need carry adapter, charging wire, bluetooth headset charging seat, a plurality of scattered products such as treasured that charge usually, and is comparatively troublesome equally.
Disclosure of Invention
The invention aims to provide a multifunctional Bluetooth headset charging device, which is used for solving the technical problems, integrates a Bluetooth headset charging seat and an adapter into a whole, is convenient to carry outside and has strong applicability; meanwhile, a wireless charging function and an electrode needle contact charging function can be configured.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
a multifunctional Bluetooth headset charging device comprises a shell, wherein a headset groove is formed in the shell and used for placing a Bluetooth headset and charging the Bluetooth headset; still be equipped with plug terminal head and circuit board in the casing, plug terminal head can be used for to power supply unit charges in the casing, the circuit board is connected with plug terminal head electricity, the circuit board is connected with power supply unit electricity.
The circuit board is electrically connected with at least one Type-C interface; when the plug-in terminal head is connected with an external power supply, the plug-in terminal head, the circuit board and the Type-C interface are combined to form a first charging assembly; when the plug-in terminal head is not connected with an external power supply, the power supply device, the circuit board and the Type-C interface are combined to form a second charging assembly.
The wireless charging device also comprises a wireless charging module, wherein the wireless charging module is electrically connected with the circuit board; when the plug terminal head is connected with an external power supply, the wireless charging module, the circuit board and the plug terminal head are combined to form a third charging assembly; when the plug-in terminal head is not connected with an external power supply, the power supply device, the circuit board and the wireless charging module are combined to form a fourth charging assembly.
The fourth charging assembly is divided into a charging state and a discharging state, when the fourth charging assembly is in the charging state, the wireless charging module is connected with an external power supply, and the power supply device is charged through the circuit board; when the wireless charging device is in a discharging state, the power supply device supplies power to the wireless charging module through the circuit board, so that the wireless charging module charges an external electronic terminal.
The electrode needle holder is electrically connected with the circuit board, and the electrode needle holder is partially positioned on the outer surface of the shell; when the plug terminal head is connected with an external power supply, the plug terminal head, the circuit board and the electrode needle base form a fifth charging assembly; when the plug-in terminal head is not connected with an external power supply, the power supply device, the circuit board and the electrode needle base form a sixth charging assembly.
Still include the wireless module of charging, the wireless module of charging is connected with the circuit board electricity.
The wireless charging device comprises a shell, and is characterized in that a magnetic suction assembly is arranged in the shell and comprises at least one permanent magnet, the magnetic suction assembly is embedded in one side face of the shell, and the magnetic suction assembly and the wireless charging module or/and the electrode needle base are/is located on the same side face of the shell.
The plug-in terminal head comprises a reversible plug-in terminal, and the plug-in terminal head is positioned at the bottom of the machine shell.
And the bottom of the earphone slot is provided with a conductive terminal which is used for being electrically connected with the circuit board.
The Type-C interface can also be replaced by a micro USB interface, a Lightning Dock interface or a common USB interface.
Compared with the prior art, the invention has the following outstanding advantages and effects: according to the invention, the plug-in terminal head is arranged in the shell, and the built-in circuit board and the power supply device are combined, so that the Bluetooth headset charging seat and the adapter are integrated, the Bluetooth headset charging seat is convenient to carry outside, and the applicability is strong; meanwhile, wireless charging and discharging can be realized by utilizing the wireless charging module, so that the use functionality is improved; the electrode needle base is combined, and the contact charging function of the electrode needle is utilized, so that the external electronic terminal can conveniently realize contact charging.
The features of the present invention will be apparent from the accompanying drawings and from the detailed description of the preferred embodiments which follows.
Drawings
FIG. 1 is a first general structural diagram of the present invention;
FIG. 2 is an overall sectional structural view of the present invention;
FIG. 3 is a schematic view of the overall internal structure of the present invention;
FIG. 4 is a schematic view of the overall internal structure of the present invention;
FIG. 5 is a third schematic view of the overall internal structure of the present invention;
FIG. 6 is a second overall view of the present invention;
wherein, 1, a shell; 11. a housing cover; 12. a housing body; 13. an earphone slot; 14. a conductive terminal; 2. inserting a terminal head; 21. an electrical plug terminal; 3. a Bluetooth headset; 4. a Type-C interface; 5. an electrode needle holder; 6. a circuit board; 7. a power supply device; 8. a wireless charging module; 9. the subassembly is inhaled to magnetism.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Example 1
With reference to the accompanying drawings, the embodiment discloses a multifunctional bluetooth headset charging device, which comprises a casing 1, wherein a headset groove 13 is formed in the casing 1, and the headset groove 13 is used for placing a bluetooth headset 3 and realizing charging of the bluetooth headset 3; the shell 1 is also internally provided with a plug-in terminal head 2 and a circuit board 6, the plug-in terminal head 2 can be used for charging a power supply device 7 in the shell 1, the circuit board 6 is electrically connected with the plug-in terminal head 2, and the circuit board 6 is electrically connected with the power supply device 7; preferably, be equipped with bluetooth module in the circuit board 6 usually, conveniently realize wireless signal transmission, can be convenient for accomplish the bluetooth with the cell-phone and be connected to the realization is to the monitoring etc. of power supply unit 7 electric quantity.
In this embodiment, the casing 1 may be divided into a casing cover 11 and a casing body 12, and the earphone slot 13 is preferably installed in the casing body 12 and has a structure of two blind holes; the circuit board 6 is arranged in the shell body 12; the casing cover 11 can realize that flip is closed or opened relative casing body 12, is convenient for put into bluetooth headset 3 to earphone groove 13 in, and realizes spacing to bluetooth headset 3, is favorable to realizing that bluetooth headset 3 and conductive terminal 14 accomplish electrically conductive contact, improves charging stability, and conductive terminal 14 is the electrode needle among the prior art usually.
In this embodiment, the plug-in terminal 2 can be connected to an external power supply such as a commercial power supply, so as to charge the power supply device 7; when the power supply device 7 stores electric energy, the Bluetooth headset 3 can be charged by putting the Bluetooth headset 3 into the headset slot 13; preferably, the bottom of the earphone slot 13 is preferably provided with a conductive terminal 14, the conductive terminal 14 is used for being electrically connected with the circuit board 6, and the power supply device 7 supplies power to the conductive terminal 14 through the circuit board 6, so that the charging of the bluetooth earphone 3 is realized.
In addition, in this embodiment, when the plug terminal head 2 is in a state of being electrified with an external power supply such as a commercial power supply, the circuit board 6 can also supply power to the conductive terminal 14, so as to charge the bluetooth headset 3 in the headset slot 13.
Preferably, in this product use, utilize to insert electric terminal head 2 to realize the energy storage to power supply unit 6 usually, then make whole equipment conveniently go out to carry to be convenient for realize going out to carry the portable to bluetooth headset 3 and charge.
Example 2
Based on embodiment 1, with reference to the accompanying drawings, in the embodiment, disclosed is a multifunctional bluetooth headset charging device with a Type-C interface, a circuit board 6 is conductively connected to at least one Type-C interface 4; preferably, the Type-C interface 4 is 1, typically located between two earphone slots 13.
When the plug-in terminal head 2 is connected with an external power supply, the plug-in terminal head 2, the circuit board 6 and the Type-C interface 4 are combined to form a first charging assembly; first subassembly that charges can regard as a traditional adapter to use, and Type-C interface 4 is used for connecting Type-C interface 4 bi-polar head charging wire, perhaps its and the charging wire of interface, and when external electronic terminal need charge, other powers such as commercial power are put through to plug-in terminal head 2, combine 6 boards of circuit, Type-C interface 4, charging wire completion to external electronic terminal. In this embodiment, the bluetooth headset charging apparatus is used as a conventional adapter.
When the plug-in terminal head 2 is not connected with an external power supply, the power supply device 7, the circuit board 6 and the Type-C interface 4 are combined to form a second charging assembly; the second subassembly that charges is the takeout mode, combines embodiment 1, and power supply unit is in the energy storage state usually, and the second subassembly that charges can be located a traditional treasured use that charges, and Type-C interface 4 is used for connecting Type-C interface 4 bi-polar head charging wire, perhaps its and the charging wire of interface, when external electronic terminal need charge, power supply unit 7 combines circuit board 6, Type-C interface 4, charging wire to accomplish and discharges, realizes charging to external electronic terminal. In this embodiment, the bluetooth headset charging device is used as a conventional power bank.
Example 3
Based on any one of the above embodiments, with reference to the attached drawings, the embodiment provides a multifunctional bluetooth headset charging device with a wireless charging module, further comprising a wireless charging module 8, wherein the wireless charging module 8 is electrically connected with the circuit board 6; the wireless charging module 8 is generally a wireless coil charging set, the wireless coil charging set is electrically connected with the circuit board 6 through a conducting wire, and the wireless coil charging set is installed inside the casing body 12, and is generally preferably attached to one side surface in the inner cavity of the casing body 12.
When the plug terminal head 2 is connected with an external power supply, the wireless charging module 8, the circuit board 6 and the plug terminal head 2 are combined to form a third charging assembly; the third subassembly that charges can regard as an adapter that has wireless function of charging, inserts the back that electric terminal head 2 realizes the switch-on, will realize supplying power to wireless module 8 that charges through circuit board 6, and external electronic terminal when matcing wireless charging device laminates in the casing lateral wall, matches each other with wireless module 8 that charges in the casing 1, realizes wireless charging.
When the plug-in terminal head 2 is not connected with an external power supply, the power supply device 7, the circuit board 6 and the wireless charging module 8 are combined to form a fourth charging assembly; the fourth subassembly that charges can regard as a treasured that charges that has wireless function of charging, and power supply unit 7 will realize the power supply to wireless charging module 8 through circuit board 6, and external electronic terminal when matching wireless charging device laminates in casing lateral wall, matches each other with wireless charging module 8 in the casing 1, realizes wirelessly charging.
In this embodiment, the fourth charging component is divided into a charging state and a discharging state, and when the fourth charging component is in the charging state, the wireless charging module 8 is connected with an external power supply, and the charging of the power supply device 7 is realized through the circuit board 6; when the wireless charging device is in a discharging state, the power supply device 7 supplies power to the wireless charging module 8 through the circuit board 6, so that the wireless charging module 8 charges an external electronic terminal.
Example 5
Based on any one of the above embodiments, with reference to the attached drawings, the embodiment provides a multifunctional bluetooth headset charging device capable of being charged in a contact manner, further comprising an electrode pin holder 5, wherein the electrode pin holder 5 is electrically connected with a circuit board 6, and part of the electrode pin holder 5 is located on the outer surface of the casing 1; electrode needle file 5 includes a plurality of electrode needle usually for the realization charges to products such as intelligent wrist-watch, accomplishes the butt joint through the electrode needle that corresponds on the intelligent wrist-watch, realizes the contact and charges.
In this embodiment, when the plug terminal 2 is connected to an external power supply, the plug terminal 2, the circuit board 6 and the electrode pin base 5 form a fifth charging assembly; the plug-in terminal head 2 completes power supply butt joint, and power supply to the electrode needle base 5 is realized through the circuit board 6, so that products such as a corresponding intelligent watch are charged.
In this embodiment, when the plug terminal 2 is not connected to an external power supply, the power supply device 7, the circuit board 6 and the electrode pin base 5 form a sixth charging assembly; the power supply device 7 supplies power to the electrode needle base 5 through the circuit board 6, so that products such as an intelligent watch are charged
In this embodiment, the wireless charging device further comprises a wireless charging module 8, wherein the wireless charging module 8 is electrically connected with the circuit board 6, and the wireless charging module 8 can be combined.
Example 6
Based on any of the above embodiments, with reference to the accompanying drawings, a magnetic attraction component 9 is arranged in the casing, the magnetic attraction component 9 includes at least one permanent magnet, the magnetic attraction component 9 is embedded in one side surface of the casing 1, preferably arranged in an annular interval, and the magnetic attraction component 9 and the wireless charging module 8 or/and the electrode needle holder 5 are located on the same side surface of the casing; the magnetic attraction component 9 is designed, so that the external electronic terminal can be conveniently attached to a product, and generally comprises products such as a smart watch, a smart bracelet, a smart phone and a tablet computer; utilize magnetism to inhale subassembly 9 can adsorb external electronic terminal in the region that charges, make things convenient for the product to accomplish wireless charging or contact charging.
Example 7
Based on any of the above embodiments, with reference to the drawings, the plug terminal head 2 includes a reversible plug terminal 21, and the plug terminal head 2 is located at the bottom of the casing 1, so that the installation of the plug terminal head 2 is facilitated, and meanwhile, the space is saved, and the carrying and the use are facilitated.
Example 8
Based on any of the above embodiments, in combination with the accompanying drawings, the Type-C interface 4 may also be replaced by a micro USB interface, a lightning dock interface, or a general USB interface.
In any of the above embodiments, the charging circuit, the discharging circuit, and the like used in the circuit board 6 are all circuit designs commonly used in the prior art; the Type-C interface 2, the micro USB interface, the Lightning Dock interface and the common USB interface correspondingly accord with the serial interface standard; a wireless coil charging group in the wireless charging module 8 is a commonly used wireless charging coil in the prior art; the electrode holder 5 is made of conductive metal material, preferably the electrode holder in the prior art.
According to the invention, the plug-in terminal head is arranged in the shell, and the built-in circuit board and the power supply device are combined, so that the Bluetooth headset charging seat and the adapter are integrated, the Bluetooth headset charging seat is convenient to carry outside, and the applicability is strong; meanwhile, wireless charging and discharging can be realized by utilizing the wireless charging module, so that the use functionality is improved; the electrode needle base is combined, and the contact charging function of the electrode needle is utilized, so that the external electronic terminal can conveniently realize contact charging.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (10)
1. The utility model provides a multi-functional bluetooth headset charging device, includes casing (1), its characterized in that: an earphone groove (13) is formed in the machine shell (1), the earphone groove (13) is used for placing the Bluetooth earphone (3), and charging of the Bluetooth earphone (3) is achieved; still be equipped with in casing (1) and insert electric terminal head (2) and circuit board (6), insert electric terminal head (2) can be used to right power supply unit (7) charge in casing (1), circuit board (3) are connected with insert electric terminal head (2) electricity, circuit board (6) are connected with power supply unit (1) electricity.
2. The multifunctional bluetooth headset charging device of claim 1, wherein: the circuit board (6) is electrically connected to at least one Type-C interface (4); when the plug-in terminal head (2) is connected with an external power supply, the plug-in terminal head (2), the circuit board (6) and the Type-C interface (4) are combined to form a first charging assembly; when plug-in terminal head (2) does not switch on external power supply, power supply unit (7), circuit board (6), Type-C interface (4) combination form the second subassembly that charges.
3. The multifunctional bluetooth headset charging device according to claim 1 or 2, wherein: the wireless charging device is characterized by further comprising a wireless charging module (8), wherein the wireless charging module (8) is electrically connected with the circuit board (6); when the plug-in terminal head (2) is connected with an external power supply, the wireless charging module (8), the circuit board (6) and the plug-in terminal head (2) are combined to form a third charging assembly; when the plug-in terminal head (2) is not connected with an external power supply, the power supply device (7), the circuit board (6) and the wireless charging module (8) are combined to form a fourth charging assembly.
4. The multifunctional Bluetooth headset charging device of claim 3, wherein: the fourth charging assembly is divided into a charging state and a discharging state, when the fourth charging assembly is in the charging state, the wireless charging module (8) is connected with an external power supply, and the power supply device (7) is charged through the circuit board (6); when the charging device is in a discharging state, the power supply device (7) supplies power to the wireless charging module (8) through the circuit board (6), so that the wireless charging module (8) charges an external electronic terminal.
5. The multifunctional bluetooth headset charging device according to claim 1 or 2, wherein: the electrode needle holder is characterized by further comprising an electrode needle holder (5), wherein the electrode needle holder (5) is electrically connected with the circuit board (6), and part of the electrode needle holder (5) is positioned on the outer surface of the machine shell (1); when the plug-in terminal head (2) is connected with an external power supply, the plug-in terminal head (2), the circuit board (6) and the electrode needle base (5) form a fifth charging assembly; when the plug-in terminal head (2) is not connected with an external power supply, the power supply device (7), the circuit board (6) and the electrode needle base (5) form a sixth charging assembly.
6. The multifunctional Bluetooth headset charging device of claim 5, wherein: still include wireless charging module (8), wireless charging module (8) are connected with circuit board (6) electricity.
7. The multifunctional bluetooth headset charging device of claim 1, wherein: be equipped with magnetism in casing (1) and inhale subassembly (9), magnetism is inhaled subassembly (9) and is included at least one permanent magnet, magnetism inhale subassembly (9) embedded install in a casing side, magnetism is inhaled subassembly (9) and is located same side of casing (1) with wireless charging module (8) or/and electrode needle file (5).
8. The multifunctional bluetooth headset charging device of claim 1, wherein: the plug-in terminal head (2) comprises a reversible plug-in terminal (21), and the plug-in terminal head (2) is positioned at the bottom of the machine shell (1).
9. The multifunctional bluetooth headset charging device of claim 1, wherein: and the bottom of the earphone slot (13) is provided with a conductive terminal (14), and the conductive terminal (14) is used for being electrically connected with the circuit board (6).
10. The multifunctional bluetooth headset charging device of claim 2, wherein: the Type-C interface (4) can also be replaced by a micro USB interface, a Lightning Dock interface or a common USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010547837.3A CN111628578A (en) | 2020-06-16 | 2020-06-16 | A multifunctional bluetooth earphone charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010547837.3A CN111628578A (en) | 2020-06-16 | 2020-06-16 | A multifunctional bluetooth earphone charging device |
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| Publication Number | Publication Date |
|---|---|
| CN111628578A true CN111628578A (en) | 2020-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010547837.3A Pending CN111628578A (en) | 2020-06-16 | 2020-06-16 | A multifunctional bluetooth earphone charging device |
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| Country | Link |
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| CN (1) | CN111628578A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112366782A (en) * | 2020-11-13 | 2021-02-12 | 深圳市北美通科技有限公司 | Mobile phone charger with automatic discharging and charging management and battery capacity display functions |
| WO2022033197A1 (en) * | 2020-08-14 | 2022-02-17 | Oppo广东移动通信有限公司 | Electric energy transmission device, control circuit, adapter, charging box and charging system |
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| WO2022033197A1 (en) * | 2020-08-14 | 2022-02-17 | Oppo广东移动通信有限公司 | Electric energy transmission device, control circuit, adapter, charging box and charging system |
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