CN103051991B - Bluetooth headset with backup power - Google Patents

Abstract

The present invention discloses a Bluetooth headset with a backup power supply, comprising a headset housing, a circuit board (2), an antenna (4), a microphone (5), a power supply and a receiver (6), wherein the headset housing comprises a main housing (1) and a secondary housing (13), wherein the power supply comprises a main battery (3) and a backup battery (31), wherein the circuit board (2), the antenna (4), the receiver (6) and the backup battery (31) are mounted on the main housing (1), wherein the main battery (3) and the microphone (5) are mounted on the secondary housing (13), wherein the secondary housing (13) is pluggably connected to the main housing (1) via an electrode plug; when the secondary housing (13) is plugged into the main housing (1), the main battery (3) supplies power to the circuit board (2) and the backup battery (31) does not supply power; when the secondary housing (13) is pulled out of the main housing (1), the backup battery (31) supplies power to the circuit board (2). The Bluetooth headset of the present invention has a long continuous working time, can still ensure the continuity of calls when the main battery is replaced, and has a reasonable arrangement of components and good signal reception.

Description

Bluetooth headset with backup power

technical field

The invention relates to a bluetooth earphone, and more specifically relates to the improvement of the shell structure of the bluetooth earphone and the reasonable configuration of the parts of the earphone.

Background technique

Bluetooth earphones are generally used on the ears by hanging ear pieces, so the design of bluetooth earphones generally pursues portability and miniaturization. In order to realize the miniaturization and portability of Bluetooth headsets, most Bluetooth headsets use micro batteries, and the circuit board, antenna, battery, etc. of the headset are installed together in the main cavity of the headset shell, such as the patent number ZL200620019746. 8 utility model patent, all components of the Bluetooth headset are built in the headset case, including the Bluetooth communication module, speaker, microphone and power supply battery. The existing bluetooth earphones have the following defects: (1), due to the limited space in the earphone case, micro batteries have to be used for power supply, resulting in a short continuous working time after the battery of the bluetooth earphone is fully charged; (2), the bluetooth earphone calls If you encounter low battery power, you will be forced to interrupt the call; (3), because the distance between the antenna and metal wire materials such as batteries and microphones is too close, the signal receiving performance of the earphone antenna is affected. Tests have shown that the distance between the antenna and metal wire materials such as batteries and microphones must be more than 3 to 4 mm to ensure that the earphone antenna has good signal receiving capability.

Contents of the invention

The technical problem to be solved by the present invention is to provide an uninterrupted power supply and to ensure the continuity of the call when the battery power is insufficient; another technical problem to be solved by the present invention is to keep the Bluetooth headset portable. Signal reception is good.

The present invention adopts the following technical measures to solve the technical problems.

A bluetooth earphone with a backup power supply, comprising an earphone housing, a circuit board, a power supply, an antenna, a microphone and a receiver; the earphone housing includes a main housing and a secondary housing, and the power supply includes a main battery and a spare battery, The circuit board, antenna, receiver and backup battery are installed in the main housing, and the main battery and microphone are installed in the auxiliary housing.

The secondary housing is pluggably connected to the main housing through an electrode plug arranged at the upper end; the circuit board contains a power logic control module; the power logic control module controls one of the main battery and the backup battery supply power to the circuit board; when the auxiliary case is plugged into the main case, the main battery supplies power to the circuit board, and the backup battery does not supply power; when the auxiliary case is pulled out of the main case, the backup battery Supply power to the board.

The sub-housing is made of high-strength materials, and its inner cavity is a battery compartment for accommodating the main battery. The microphone is installed at the lower end of the sub-housing, and a post is provided at the upper end of the sub-housing to close the opening of the battery compartment. The top of the plunger is provided with an electrode plug, and the lower part of the main housing is fixed with an electrode socket that can be plugged into the electrode plug.

The main battery adopts a cylindrical battery with larger capacity, and the backup battery adopts a miniature button battery.

After the main battery and the backup battery are connected in parallel, their positive terminal is connected to the vbat terminal of the Bluetooth chip, and its negative terminal is connected to the GND terminal of the Bluetooth chip.

The circuit board is installed in the middle of the inner cavity of the main housing, the antenna is located on one side of the circuit board, the receiver and the backup battery are located on the other side of the circuit board, and the distance between the antenna and the main battery is greater than 4 mm.

The main casing is made of plastic, including a base, a top cover and a decorative panel. One side of the base is provided with a circuit board and an antenna, and the other side of the base is provided with a cavity and an outer casing for a spare battery. thread; the inner side of the earplug is provided with a half hole that can accommodate the receiver, the inner thread of the half hole wall is screwed with the outer thread on the other side of the base, and the receiver is fixed between the earplug and the base In the mezzanine.

A small hole is opened on the side wall of the base for installing the electrode socket and the sleeve of the electrode socket, and the top cover and the decorative panel are buckled with the base respectively.

The outer wall of the base is provided with a power switch and a volume switch.

Compared with the prior art, the bluetooth earphone with backup power supply of the present invention has the following beneficial technical effects: due to the use of a cylindrical main battery with a larger capacity, the continuous working time is long, and the continuity of the call can still be guaranteed when the main battery is replaced Sex; move the main battery from the inner cavity of the main housing to the inner cavity of the auxiliary housing to reduce the influence of the main battery on the antenna signal reception.

Description of drawings

The descriptions of the attached drawings are as follows:

Fig. 1 is the bluetooth earphone that the present invention has standby power supply when the sub-housing pulls out the schematic diagram of main casing;

Fig. 2 is the disassembled state schematic diagram of the bluetooth earphone that has backup power supply of the present invention;

Fig. 3 is a schematic diagram of the bluetooth earphone with backup power supply of the present invention when the secondary housing is inserted into the main housing;

Fig. 4 is a schematic circuit diagram of the bluetooth earphone with backup power supply of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1 and Figure 2, the bluetooth earphone that the present invention has standby power comprises earphone housing, circuit board 2, power supply, antenna 4, microphone 5, receiver 6, earplug 7, USB interface board 21, USB interface 8, Light guide 91, power switch 9 and volume switch. The circuit board 2 includes a bluetooth module, a codec, an earpiece and a microphone 5 connected to the analog signal output and the input of the codec respectively, and the circuit principle of the bluetooth earphone belongs to the prior art. The present invention is mainly to the shape structure of the bluetooth earphone housing, the setting of the power supply mode, and the configuration relationship between the circuit board 2 and the power supply, antenna 4, microphone 5, receiver 6 and other components that affect the reception of the bluetooth earphone signal. the design of.

The earphone housing includes a main housing 1 and a secondary housing 13, and the power supply includes a main battery 3 and a spare battery 31, the main battery 3 adopts a larger cylindrical battery, and the spare battery 31 adopts a miniature button battery. A circuit board 2, an antenna 4, a receiver 6 and a backup battery 31 are installed in the main housing 1, and the auxiliary housing 13 is made of high-strength materials, and its inner cavity can accommodate the main battery 3 A battery compartment 121, the microphone 5 is mounted on the lower end of the sub-housing 13, the upper end is provided with a plunger 122 that closes the opening of the battery compartment 121, and an electrode plug 123 is arranged on the top of the plunger 122, the main housing The lower part of the body 1 is fixed with an electrode socket 124 that can be plugged into the electrode plug 123; therefore, the secondary housing 13 is pluggably connected to the main housing 1 through the electrode plug 123 arranged at the upper end (see Figures 1 and 3).

Figure 4 is a schematic circuit diagram of the Bluetooth headset. As seen from Fig. 4, described circuit board 2 also contains power supply logic control module; This power supply logic control module controls one of described main battery 3 and backup battery 31 to supply power for circuit board 2, and described main battery 3 and backup battery 31 After parallel connection, its positive terminal is connected to the vbat terminal of the Bluetooth chip, and its negative terminal is connected to the GND terminal of the Bluetooth chip. When the sub-housing 13 is plugged with the main housing 1 (Fig. 3), the main battery 3 in the sub-housing 13 supplies power to the circuit board 2, and the backup battery 31 in the main housing 1 does not supply power; when When the main battery 3 of the Bluetooth headset is running low during a call, the auxiliary housing 13 can be pulled out of the main housing 1 to replace the main battery 3. At this time (the auxiliary housing 13 is pulled out of the main housing 1, as shown in Figure 1 As shown), the power supply logic control module immediately controls the backup battery 31 to supply emergency power to the circuit board 2, so that the Bluetooth headset in the call can still ensure the continuity of the call when the main battery is replaced. When the main battery is replaced and the secondary housing 13 is inserted into the main housing 1 again, the power supply logic control module immediately controls the backup battery 31 to be disconnected, and the main battery 3 supplies power to the circuit board 2 again. This shows that backup battery 31 needs to change main battery during the call and is used urgently under the situation that the call is not interrupted. Therefore, the service time of backup battery 31 is very short and does not need to be replaced frequently.

The main housing 1 is made of plastic and includes a base 11, a top cover 12 and a decorative panel 14. One side of the base 11 is provided with the circuit board 2 and the antenna 4, and the other side is provided with an outer thread; the power switch 9 and the volume switch 52 are installed on the outer wall of the base 11, and the side wall of the base 11 offers a small hole for fixedly installing the electrode socket 124 and the electrode socket sleeve 125, so that the auxiliary The main battery 31 and the microphone 5 in the housing 13 can be electrically connected to the circuit board 2 through the electrode socket 124; the top of the base 11 is also provided with a battery compartment for accommodating the spare battery 31, and the opening of the spare battery compartment is provided with a battery cover 311. The top cover 12 and the decorative panel 14 are fastened to the base 11 respectively. A sponge body is placed between the top cover 12 and the decorative panel 14 to reduce the vibration of components.

One side of the earplug 7 is provided with a half hole capable of accommodating the receiver 6, the hole wall of the half hole is provided with an internal thread connected with the external thread of the base 11, and the receiver 6 is fixed on the In the interlayer between the earplug 7 and the base 11. Therefore, the antenna 4 and the receiver 6 are respectively located on two sides of the circuit board 2 .

The sub-housing 13 is made of high-strength material, and its inner cavity is a battery compartment 121 for accommodating the main battery 3. The microphone 5 is installed at the lower end of the sub-housing 13, and its upper end is provided with The plunger 122 that closes the opening of the battery compartment 121 is provided with an electrode plug 123 on the top of the plunger 122, and the electrode plug 123 is plugged into the electrode socket 124 at the bottom of the main housing 1.

The shape structure of the earphone housing of the present invention and the arrangement of components such as the antenna 4, the battery 3, the circuit board 2, the microphone 5 and the receiver 6 installed on the earphone housing make the antenna 4 compatible with the battery 3, the microphone 5 and the receiver 6. A certain distance can be kept between components such as the receiver 6, for example, the shortest distance between the antenna 4 and the battery 3 is kept above 4 millimeters, so that the signal receiving performance of the antenna 4 is significantly improved.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes, and within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the present invention Inside.

Claims (7)

1. A Bluetooth earphone with a backup power supply, comprising an earphone housing, a circuit board (2), a power supply, an antenna (4), a microphone (5) and a receiver (6); it is characterized in that: The earphone casing includes a main casing (1) and a secondary casing (13), the power supply includes a main battery (3) and a spare battery (31), the circuit board (2), antenna (4), receiving The device (6) and the backup battery (31) are installed in the main housing (1), and the main battery (3) and the microphone (5) are installed in the auxiliary housing (13); The auxiliary housing (13) is pluggably connected to the main housing (1) through the electrode plug provided at the upper end; the circuit board (2) contains a power logic control module; the power logic control module controls all One of the main battery (3) and the backup battery (31) supplies power to the circuit board (2); when the auxiliary housing (13) is plugged into the main housing (1), the main battery (3) Supplying power to the circuit board (2), the backup battery (31) does not supply power; when the auxiliary housing (13) is pulled out of the main housing (1), the backup battery (31) supplies power to the circuit board (2); The sub-housing (13) is made of high-strength materials, and its inner cavity is a battery compartment (121) for accommodating the main battery (3). The microphone (5) is installed in the sub-housing (13) ), the upper end is provided with a plunger (122) that closes the opening of the battery compartment (121), the top of the plunger (122) is provided with an electrode plug (123), and the lower part of the main housing (1) is fixed An electrode socket (124) that can be plugged into the electrode plug (123) is provided. 2. The Bluetooth headset with backup power according to claim 1, characterized in that: the main battery (3) is a cylindrical battery with a relatively large capacity, and the backup battery (31) is a miniature button battery. 3. The Bluetooth earphone with backup power according to claim 2, characterized in that: after the main battery (3) and the backup battery (31) are connected in parallel, the positive terminal is connected to the vbat terminal of the Bluetooth chip, and the negative terminal is Connect to the GND terminal of the Bluetooth chip. 4. The Bluetooth headset with backup power according to claim 3, characterized in that: the circuit board (2) is installed in the middle of the inner cavity of the main housing (1), and the antenna (4) is located on the circuit board ( 2), the receiver (6) and backup battery (31) are located on the other side of the circuit board (2), and the distance between the antenna (4) and the main battery (3) is greater than 4 mm. 5. The Bluetooth headset with backup power according to any one of claims 1 to 4, characterized in that: the main housing (1) is made of plastic, including a base (11), a top cover ( 12) and decorative panels (14), one side of the base (11) is provided with a circuit board (2) and an antenna (4), and the other side of the base (11) is provided with a spare battery (31) Recess and external thread; the inner side of the earplug (7) is provided with a half hole that can accommodate the receiver (6), and the internal thread of the half hole wall is screwed with the external thread on the other side of the base (11). The receiver (6) is fixed in the interlayer between said earplug (7) and base (11). 6. The bluetooth headset with backup power according to claim 5, characterized in that: the side wall of the base (11) has a small hole for fixedly installing the electrode socket (124) and the electrode socket sleeve (125) , the top cover (12) and the decorative panel (14) are fastened to the base (11) respectively. 7. The Bluetooth headset with backup power according to claim 5, characterized in that: a power switch (9) and a volume switch are arranged on the outer wall of the base (11).