CN213880263U

CN213880263U - Ear-back type Bluetooth hearing aid

Info

Publication number: CN213880263U
Application number: CN202023275550.4U
Authority: CN
Inventors: 李鹏; 张威
Original assignee: Acosound Technology Co ltd
Current assignee: Acosound Technology Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-08-03
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses an ear back of body formula bluetooth audiphone, including audiphone shell, inside lining, printed circuit board, RIC transadmittance, lithium ion rechargeable battery, audiphone contact that charges. The hearing aid shell comprises a button, an upper shell and a lower shell, the lining is used for installing and fixedly supporting a printed circuit board and dividing the interior of the hearing aid into an upper space and a lower space, the printed circuit board comprises a Bluetooth hearing aid special chip circuit, a button, a Bluetooth antenna circuit, a microphone and a power circuit, the Bluetooth antenna circuit comprises a Bluetooth antenna matching network and a Bluetooth antenna, the Bluetooth hearing aid special chip circuit, the button, the Bluetooth antenna circuit, the microphone and a lithium ion battery charging circuit are all welded on the printed circuit board, and the power circuit comprises a lithium ion rechargeable battery charging circuit and a level conversion circuit. The utility model discloses accessible wireless bluetooth is connected with other electronic equipment that have wireless bluetooth function.

Description

Ear-back type Bluetooth hearing aid

Technical Field

The utility model relates to a audiphone field, concretely relates to back of ear formula bluetooth audiphone.

Background

Wearing hearing aids is one of the main interventions to cope with hearing impairment. Hearing aids can be broadly classified into in-the-ear type hearing aids and behind-the-ear type hearing aids according to their external shapes. The ear back machine has different powers, good sound transmission effect, wide application and convenient wearing, and is especially suitable for the old. But is not sufficiently concealed from the in-the-ear hearing aid and is comfortable to hang behind the pinna.

Along with the improvement of economic living standard and the promotion of people on living quality demand, more and more wireless intelligent electronic products enter the daily life of people, change people's life style and custom and make things convenient for people's life.

Disclosure of Invention

The utility model provides an ear back of body formula bluetooth audiphone can be connected with other electronic equipment that have wireless bluetooth function, carries out wireless testing and matches, calls through the audiphone and listens to music etc. to the audiphone.

An ear-back type Bluetooth hearing aid comprises a hearing aid shell, an inner liner, a printed circuit board, an RIC (radio over coax) transmitter, a lithium ion rechargeable battery and a hearing aid charging contact; the hearing aid shell comprises a button, an upper shell and a lower shell, the lining is used for installing and fixedly supporting a printed circuit board and dividing the interior of the hearing aid into an upper space and a lower space, the printed circuit board comprises a Bluetooth hearing aid special chip circuit, a button, a Bluetooth antenna circuit, a microphone and a power circuit, the Bluetooth antenna circuit comprises a Bluetooth antenna matching network and a Bluetooth antenna, and the Bluetooth hearing aid special chip circuit, the button, the Bluetooth antenna circuit, the microphone and the power circuit are all welded on the printed circuit board.

The button is in a seesaw shape, and salient points are arranged at two ends of the button.

The hearing aid charging contacts are electrically connected with the printed circuit board and extend to the outer surface of the shell, and the hearing aid charging contacts comprise two charging contacts and a control signal input contact.

The inner liner divides the interior of the hearing aid into an upper space and a lower space, and is used for placing a printed circuit board, an RIC (radio over coax) transmitter, a lithium ion rechargeable battery and a hearing aid charging contact.

The Bluetooth hearing aid special chip circuit, the keys, the Bluetooth antenna circuit, the microphone and the power circuit are connected through copper foil wires on the printed circuit board.

The Bluetooth hearing aid special chip circuit integrates a professional hearing aid functional module, a Bluetooth module and a power supply system.

The power supply circuit comprises a lithium ion rechargeable battery protection circuit, a level conversion circuit and a lithium battery DC/DC voltage reduction circuit, wherein one end of the level conversion circuit is electrically connected with the control signal input contact, and the other end of the level conversion circuit is electrically connected with the lithium battery DC/DC voltage reduction circuit.

The invention has the beneficial effects that:

the utility model relates to a audiphone has bluetooth function's audiphone can be connected with other electronic equipment that have wireless bluetooth function, carries out wireless fitting, calls to listen music etc. through the audiphone to the audiphone, makes and listen the enjoyment that the barrier patient also can the aspect and richen high-quality life.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is an external view of the button of the present invention.

FIG. 4 is a cell relationship block diagram.

The diagram in the figure shows that the inner liner 2, the printed circuit board 3, the RIC telephone transmitter 4, the lithium ion rechargeable battery 5, the hearing aid charging contact 6, the button 7, the upper shell 8, the lower shell 9, the Bluetooth hearing aid special chip circuit 10, the key 11, the Bluetooth antenna circuit 12, the microphone 13, the power circuit 14, the Bluetooth antenna matching network 15, the Bluetooth antenna 16, the salient point 17, the charging contact 18, the control signal input contact 19, the lithium ion rechargeable battery protection circuit 20, the level conversion circuit 21 and the lithium battery DC/DC voltage reduction circuit 22.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

As shown in fig. 1-4, the bluetooth hearing aid for behind the ear comprises a hearing aid shell, an inner liner 2, a printed circuit board 3, an RIC microphone 4, a lithium ion rechargeable battery 5 and a hearing aid charging contact 6. The hearing aid shell comprises a button 7, an upper shell 8 and a lower shell 9, the lining 2 is used for installing, fixing and supporting the printed circuit board 3 and dividing the interior of the hearing aid into an upper space and a lower space, the printed circuit board 3 comprises a Bluetooth hearing aid special chip circuit 10, a key 11, a Bluetooth antenna circuit 12, a microphone 13 and a power supply circuit 14, the Bluetooth antenna circuit 12 comprises a Bluetooth antenna matching network 15 and a Bluetooth antenna 16, the Bluetooth hearing aid special chip circuit 10, the key 11, the Bluetooth antenna circuit 12, the microphone 13 and the power supply circuit 14 are all welded on the printed circuit board 3, and the power supply circuit 14 comprises a Bluetooth antenna matching network 15 and a Bluetooth antenna 16. The utility model discloses accessible wireless bluetooth is connected with other electronic equipment that have wireless bluetooth function.

The inner liner 2, the printed circuit board 3, the lithium ion rechargeable battery 5 and the hearing aid charging contact 6 are contained in the hearing aid shell.

Preferably, the button 7 is shaped like a seesaw, and has protrusions 17 at both ends thereof. The bumps 17 at both ends are respectively aligned with the keys 11 on the printed circuit board 3, and one end of the button 6 is pressed down to press the key 11 on the printed circuit board 3. The keys 11 on the printed circuit board 3 are two patch dome keys, so that the structure is simple, the use is convenient, and the function multiplexing can be carried out through a program.

The hearing aid charging contacts 9 are electrically connected to the printed circuit board 3 and extend to the outer surface of the lower shell 9. The lithium ion rechargeable battery 5 is charged by the electric energy input through the hearing aid charging contact 9.

The preferred hearing aid charging contacts 9 comprise two charging contacts 18 and one control signal input contact 19.

The inner liner 2 is used for installing, fixing and supporting a printed circuit board 3, dividing the interior of the hearing aid into an upper space and a lower space, and is used for placing the printed circuit board 3, an RIC (radio identity module) 4, a lithium ion rechargeable battery 5 and a hearing aid charging contact 6, so that the internal space of the hearing aid is fully utilized.

The Bluetooth hearing aid special chip circuit 10, the key 11, the Bluetooth antenna circuit 12, the microphone 13 and the power circuit 14 are connected through a copper foil wire on the printed circuit board 3.

The preferred printed circuit board 3 is constructed of a hard board portion and an FPC board portion. The printed circuit board 3 formed by the hard board part and the FPC board part can be formed by combining an independent hard board and an independent FPC board or can be a rigid-flexible printed circuit board.

The chip circuit 10 special for the Bluetooth hearing aid integrates a professional hearing aid functional module, a Bluetooth module and a power supply system.

The bluetooth antenna 16 may be a bluetooth ceramic antenna, or a PCB antenna.

The bluetooth antenna matching network 15 performs specific matching according to the bluetooth antenna 16.

The power supply circuit 14 includes a lithium ion rechargeable battery protection circuit 20, a level conversion circuit 21, and a lithium battery DC/DC step-down circuit 22.

One end of a level switching circuit 21 contained in the power supply circuit 14 is electrically connected with a control signal input contact 19 in the hearing aid charging contact 6, and the other end is electrically connected with a lithium battery DC/DC voltage reduction circuit 22. The level switching circuit 21 detects the level of the control signal input contact 19 in the hearing aid charging contact 9 to control the lithium battery DC/DC voltage reduction circuit 22 to operate or inhibit the operation.

The present invention has been described above, but the present invention is not limited to the disclosed embodiments, and the technical solutions between the embodiments of the present invention may be combined with each other. Any simple modification, variation and improvement of the above embodiments according to the present invention are still within the scope of the present invention.

Claims

1. An ear-back type Bluetooth hearing aid is characterized by comprising a hearing aid shell, an inner liner (2), a printed circuit board (3), an RIC (Rich communication center) microphone (4), a lithium ion rechargeable battery (5) and a hearing aid charging contact (6); the hearing aid shell comprises a button (7), an upper shell (8) and a lower shell (9), the lining (2) is used for installing a fixed support printed circuit board (3) and dividing the interior of the hearing aid into an upper space and a lower space, the printed circuit board (3) comprises a Bluetooth hearing aid special chip circuit (10), a key (11), a Bluetooth antenna circuit (12), a microphone (13) and a power supply circuit (14), the Bluetooth antenna circuit (12) comprises a Bluetooth antenna matching network (15) and a Bluetooth antenna (16), and the Bluetooth hearing aid special chip circuit (10), the key (11), the Bluetooth antenna circuit (12), the microphone (13) and the power supply circuit (14) are welded on the printed circuit board (3).

2. The bte hearing aid according to claim 1, wherein the button (7) is shaped like a seesaw and has protrusions (17) at both ends.

3. A bte hearing aid according to claim 1, c h a r a c t e r i z e d in that the hearing aid charging contacts (6) are electrically connected to the printed circuit board (3) and extend to the outer surface of the housing, said hearing aid charging contacts (6) comprising two charging contacts (18) and a control signal input contact (19).

4. The bte hearing aid according to claim 1, wherein the inner liner (2) divides the inside of the hearing aid into a plurality of upper and lower spaces, and is used for placing the printed circuit board (3), the RIC transmitter (4), the lithium ion rechargeable battery (5) and the hearing aid charging contacts (6).

5. The bte hearing aid according to claim 1, wherein the chip circuit (10), the button (11), the bluetooth antenna circuit (12), the microphone (13) and the power circuit (14) are connected by copper foil wires on the printed circuit board (3).

6. The bte hearing aid according to claim 1, wherein the bte chip circuit (10) integrates a professional hearing aid functional module, a bluetooth module and a power system.

7. The bte hearing aid according to claim 3, wherein the power circuit (14) comprises a li-ion rechargeable battery protection circuit (20), a level shifter circuit (21) and a li-ion DC/DC buck circuit (22), one end of the level shifter circuit (21) being electrically connected to the control signal input contact (19) and the other end being electrically connected to the li-ion DC/DC buck circuit (22).