CN113438577A

CN113438577A - Embedded bluetooth converter and earphone and audio amplifier that uses it

Info

Publication number: CN113438577A
Application number: CN202110616225.XA
Authority: CN
Inventors: 张春阳; 杨东麟
Original assignee: Beijing Quadratic Culture Media Co ltd
Current assignee: Beijing Quadratic Culture Media Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-09-24

Abstract

The invention discloses an embedded Bluetooth converter, comprising: the audio equipment comprises a connecting base, a control unit and a power supply, wherein the connecting base is provided with an electrode terminal, is installed on the audio equipment and is electrically connected with the control unit of the audio equipment through the electrode terminal; the shell is detachably connected with the connecting base, and a contact is arranged below the shell and electrically connected with an electrode terminal of the connecting base; the shell is provided with a microphone hole; the circuit board is arranged in the shell and is electrically connected with the contact; be provided with bluetooth module, battery and microphone on the circuit board, bluetooth module passes through audio equipment output with received audio signal and exports, and the battery supplies power to bluetooth module. The invention also discloses an earphone which comprises an earphone main body and the embedded Bluetooth converter. The invention also discloses a sound box which comprises a sound box main body and the embedded Bluetooth converter. The invention can realize that the audio equipment is upgraded from wired connection to wireless connection, thereby improving portability of carrying and using.

Description

Embedded bluetooth converter and earphone and audio amplifier that uses it

Technical Field

The invention relates to the technical field of audio equipment, in particular to an embedded Bluetooth converter, an earphone and a sound box which are provided with the embedded Bluetooth converter.

Background

The prior art audio devices are basically classified into two types, namely, a wired audio device and a bluetooth connected audio device, which are well known. Common audio devices are earphones and speakers.

The wired earphone has the characteristics of good sound quality, no need of charging and the like, but has the defects of inconvenient carrying and use in the use process. The problem that the electronic equipment cannot be left during communication or music listening is solved by the Bluetooth headset, so that people can communicate or listen to music while working, but the Bluetooth headset has the defects of poor tone quality and need to be charged in the using process.

As shown in fig. 1, the conventional Hifi hybrid headset includes a headset part 1' and a wire part 2', and the wire part 2' is detachably mounted on the headset, so that different wires can be replaced according to the sound quality, but there is a problem in that it is inconvenient to carry.

Disclosure of Invention

One of the objectives of the present invention is to provide an embedded bluetooth converter, which applies the bluetooth technology to the common audio equipment, upgrades the wired connection to the wireless connection, and improves the portability of carrying and using. The second purpose of the present invention is to provide an earphone or a sound box, which can be connected by wire or by bluetooth, and to achieve the above purpose, the present invention adopts the following technical scheme:

the invention discloses an embedded Bluetooth converter, which is connected with audio equipment and comprises: the audio equipment comprises a connecting base, a control unit and a power supply, wherein the connecting base is provided with an electrode terminal, is arranged on the audio equipment and is electrically connected with the control unit of the audio equipment through the electrode terminal; the shell is detachably connected with the connecting base, a contact is arranged below the shell, and the contact is electrically connected with an electrode terminal of the connecting base; the shell is provided with a microphone hole; a circuit board mounted in the housing and electrically connected to the contacts; the circuit board on be provided with bluetooth module, battery and microphone, bluetooth module pass through audio equipment output with received audio signal and export, the battery supply power to bluetooth module, the microphone set up with the position correspondence of microphone hole.

The electrode terminal on the connecting base is connected with a control unit of the audio equipment through a lead; or the electrode terminal is in a pin shape and is in direct contact connection with a control unit of the audio equipment.

Preferably, the shell is provided with an elastic clamping hook member, the lower part of the elastic clamping hook member is connected with the shell in a U shape, the upper part of the elastic clamping hook member is a suspended wall pressing end, and the middle part of the elastic clamping hook member is provided with a clamping hook; the connecting base is provided with a clamping groove, the elastic clamping hook piece is inserted into the connecting base, and the clamping hook is buckled in the clamping groove to realize the fixation of the shell and the connecting base; and when the pressing end of the cantilever is pressed, the clamping hook is separated from the clamping groove, so that the shell and the connecting base are detached.

Preferably, the battery is a rechargeable battery, the circuit board is further provided with a charging coil, and the charging coil supplies electric energy to the rechargeable battery.

Furthermore, a switch is also arranged on the circuit board and controls the Bluetooth module to be turned on or turned off; the switch is an inductive touch switch, or the switch is a key switch, and the shell is provided with a containing groove for the key switch to extend out.

Preferably, the circuit board formula circuit board as an organic whole or including vertically pile up and first circuit board and the second circuit board of mutual electric connection, charging coil and switch setting on first circuit board, bluetooth module and rechargeable battery set up on the second circuit board.

Wherein, the rechargeable battery is a lithium ion rechargeable button cell battery.

The shell comprises a lower shell and an upper shell assembled with the lower shell, and the contacts are arranged at the bottom end of the lower shell. The contact is a spring type contact pin.

The circuit board is fixedly arranged on the upper shell, and is electrically connected with the contact through a lead or directly contacted and connected with the contact through a metal terminal.

Preferably, the circuit board and the shell are partially or completely filled with glue.

The invention also discloses an earphone which comprises an earphone main body and the embedded Bluetooth converter, wherein the electrode terminal of the connecting base is electrically connected with the control unit of the earphone main body.

The earphone body comprises an ear entering body part and a connecting wire, a control unit is arranged in the ear entering body part, a wiring port is arranged on the side edge of the ear entering body part, and the connecting wire is detachably inserted into the wiring port.

The invention also discloses a sound box, which comprises a sound box main body and the embedded Bluetooth converter, wherein the electrode terminal of the connecting base is electrically connected with the control unit of the sound box main body.

Due to the adoption of the structure, the invention has the following beneficial effects:

1. the invention has simple structure, the circuit board is arranged in the shell and is directly arranged on the audio equipment through the connecting base, and embedded connection is realized, thereby conveniently and rapidly connecting the audio equipment with the common wire: such as a wired earphone, a wired sound box and the like, are upgraded into a Bluetooth earphone or a Bluetooth sound box instantly, and further music wireless transmission of digital products such as a mobile phone, a tablet, a computer and the like with Bluetooth functions can be supported.

2. The circuit board is provided with the rechargeable battery and the charging coil, the rechargeable battery can be charged through the charging coil by a wireless charging technology, and the rechargeable battery can be charged at any time after being discharged, so that the traditional data line is not required to be connected to the charging terminal equipment, and the use is convenient. The Bluetooth module is powered through the rechargeable battery, so that the endurance time of the Bluetooth converter can be effectively prolonged.

3. Still be provided with the switch on the circuit board, can close bluetooth module through the switch, prevent that audio equipment from being in the bluetooth connection status all the time, reduce power consumptively.

4. The circuit board includes vertical first circuit board and the second circuit board of stacking connection, can reduce the area of circuit board, adopts vertical mode of piling up, but the volume of furthest's reduction circuit board to reduce the volume of whole bluetooth converter, the travelling comfort of being convenient for is worn.

Drawings

Fig. 1 is a schematic structural diagram of a conventional Hifi hybrid headset in the background art.

Fig. 2 is a schematic structural diagram of an embedded bluetooth converter according to the present invention.

Fig. 3 is an exploded schematic view of fig. 2.

Fig. 4 is an exploded view of another angle of the housing and connection mount.

Fig. 5 is a schematic bottom view of an embedded bluetooth converter of the present invention.

Fig. 6 is a schematic sectional view taken along line B-B in fig. 5.

Fig. 7 is a schematic sectional view taken along line a-a in fig. 5.

Fig. 8 is an enlarged schematic view at C in fig. 6.

Fig. 9 is an enlarged schematic view at D in fig. 7.

Fig. 10 is a partial schematic view of a push-button switch.

Fig. 11 is a schematic structural view of the circuit board.

Fig. 12 is a schematic view of another angle circuit board.

Fig. 13 is a schematic view of the structure of the earphone of the present invention.

Fig. 14 is a schematic diagram of a normal wiring of the headset.

Fig. 15 is an assembly schematic diagram of the earphone in bluetooth wireless connection.

Fig. 16 is a schematic structural view of the sound box of the present invention.

Description of the main component symbols:

1: connection base, 11: electrode terminal, 12: a card slot, 2: a housing, 21: lower case, 211: contact, 22: upper shell, 221: microphone hole, 222: a storage tank, 3: circuit board, 31: first circuit board, 32: second circuit board, 33: bluetooth module, 34: charging coil, 35: secondary battery, 36: inductive touch switch, 37: microphone, 38: push-button switch, 4: ear insertion body portion, 41: wiring port, 5: connecting wire, 6: control unit, 7: decorative cover, 8: elastic hook member, 81: cantilever-pressing end, 82: hook, 9: speaker main body, 10: an embedded Bluetooth converter.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Example one

As shown in fig. 2 to 7, the present embodiment discloses an embedded bluetooth converter, including: the base 1, the housing 2 and the circuit board 3 are connected.

The shape of the connecting base 1 is matched with the audio equipment (such as earphones or a sound box) so as to be installed on the audio equipment in a fitting mode. The end of the connection base 1 is provided with two electrode terminals 11, and is electrically connected to the control unit 6 of the audio device through the electrode terminals 11. The connection base and the control unit of the audio equipment can be connected through welding by a lead; or the electrode terminal is designed into a pin shape and is directly connected with the control unit of the audio equipment in a contact way.

The housing 2 is mounted on the connection base 1. The housing 2 includes a lower case 21 and an upper case 22, and the lower case 21 and the upper case 22 are assembled and connected. The bottom of the lower case 21 is provided with two contacts 211, and the contacts 211 are electrically connected to the electrode terminals 11 of the connection base 1. The two contacts 211 are connected to the electrode terminals 11 to exchange analog signals.

Referring to fig. 4 and 6, in the present invention, the housing 2 and the connection base 1 can be quickly disassembled and connected. Elastic hook members 8 are provided on the lower case 21. The lower part of the elastic clamping hook part 8 is connected with the lower shell 21 in a U shape, the upper part of the elastic clamping hook part 8 is a suspended wall pressing end 81, and the middle part of the elastic clamping hook part 8 is provided with a clamping hook 82. The connecting base 1 is provided with a clamping groove 12. When the connector is installed, the elastic clamping hook part 8 is inserted into the connecting base 1, and the clamping hook 82 is buckled in the clamping groove 12, so that the shell 2 and the connecting base 1 are fixed. As shown in fig. 8, when the connection base 1 needs to be detached, the suspending wall pressing end 81 is pressed, the hook 82 is separated from the slot 12, and the housing is pulled upward, so that the detachment of the housing 2 from the connection base 1 can be realized.

As shown in fig. 7, in order to facilitate connection, the contact 211 of this embodiment is a spring type pin (pogo pin), which is formed by riveting and prepressing three basic components including a pin shaft, a spring, and a needle tube through a precision instrument, and the spring type pin is in contact with the electrode terminal of the connection base, and the pin shaft compresses the spring, thereby achieving effective close contact with the electrode terminal 11.

The circuit board 3 is mounted in the housing 2 and electrically connected to the contacts 211. The circuit board is electrically connected to the contacts by wires as in fig. 7. In other embodiments, the circuit board 3 can also be connected in direct contact with the contacts by means of metal terminals. In order to improve the sealing performance and stability, the circuit board 3 and the housing 2 may be partially or completely filled with glue after being mounted.

As shown in fig. 11-12, the circuit board 3 is provided with a bluetooth module 33, a charging coil 34, a charging battery 35, an inductive touch switch 36 and a microphone 37. In order to reduce the volume of the circuit board, the circuit board comprises a first circuit board 31 and a second circuit board 32 which are longitudinally connected in a stacked manner, a charging coil 34 and an inductive touch switch 36 are arranged on the first circuit board 31, and a Bluetooth module 33, a charging battery 35 and a microphone 37 are arranged on the second circuit board 32. A microphone hole 221 is formed in the upper case 22 at a position corresponding to the position of the microphone 37.

The bluetooth module 33 is configured to receive an audio signal in the bluetooth signal, and output the received audio signal through an output end of the earphone or the speaker. The charging coil 34 supplies power to the charging battery 35, and the charging battery 35 supplies power to the bluetooth module 33, the microphone 37, and the inductive touch switch 36.

In this embodiment, the rechargeable battery 35 is a lithium ion rechargeable button cell battery with the LIR1454 model.

As shown in fig. 9, in the present embodiment, the sensing touch switch 36 is a capacitive sensing touch switch, which can penetrate through the insulating material (glass, plastic, etc.) casing by more than 20mm, so as to accurately detect the effective touch of the finger. The human hand touches the shell, and after the induction touch switch 36 detects the touch of the finger, the bluetooth module 33 is controlled to be opened or disconnected. As shown in fig. 10, in other embodiments, the inductive touch switch 36 can be replaced by a conventional push-button switch 38, and the upper case 22 is provided with a receiving groove 222 for extending the push-button switch 38.

Example two

As shown in fig. 13-15, the present embodiment discloses an earphone, which includes an earphone body and the embedded bluetooth converter 10 of the first embodiment. As shown in fig. 14, the earphone main body includes an in-ear body portion 4 and a connecting wire 5. The ear-entering main body part 4 is internally provided with a control unit 6, the side edge of the ear-entering main body part 4 is provided with a wiring port 41, and the connecting wire 5 is detachably inserted in the wiring port 41.

As shown in fig. 14, when the earphone is used in a normal connection mode, the decorative cover 7 is mounted on the ear insertion body portion 4, one end of the connecting wire 5 is plugged into the connecting port 41, the other end of the connecting wire is connected with a mobile phone, and audio on the mobile phone is transmitted to the earphone through the connecting wire 41.

When wireless connection is needed, the decorative cover 7 and the connecting wire 5 are removed, and the embedded Bluetooth converter is installed on the ear-entering main body part 4. As shown in fig. 15, the specific installation process is as follows:

1. the circuit board 3 is mounted on the upper case 21, and the upper case 22 is assembled to the lower case 21 so that the first circuit board 31 and the second circuit board 32 are electrically connected to the two contacts 211 of the lower case 21 to form an integral body. In the process, partial or all glue filling is carried out between the circuit board and the shell according to the requirement.

2. The connection base 1 is attached to the ear-insertion body portion 4, and the electrode terminal 11 of the connection base 1 is electrically connected to the control unit 6 in the ear-insertion body portion 4.

3. The case 2 and the circuit board 3 are integrally mounted on the connection base 1, and the contacts 211 on the lower case 21 are brought into contact connection with the electrode terminals 11 on the connection base 1.

When the earphone is used, a signal is sent to the inductive touch switch 36 by touching the corresponding position of the upper shell 22 with a hand, the inductive touch switch 36 controls the Bluetooth module 33 to be opened after detecting effective touch of a finger, the Bluetooth module 33 is connected with the Bluetooth of the mobile phone, and the received audio signal is output through the output end of the earphone. The rechargeable battery 35 supplies power to the bluetooth module 33 during use. When charging is required, the case 2 and the circuit board 3 are integrally detached from the connection base 1 and placed on a charging pad. A charging coil 34 inside the housing 2 senses the change of the magnetic field, thereby generating a current to charge the charging battery 35.

EXAMPLE III

As shown in fig. 16, the present embodiment discloses a sound box, which includes a sound box main body 9 and an embedded bluetooth converter 10 of the first embodiment. The electrode terminals of the connection base 1 are electrically connected to the control unit of the cabinet main body 9. The principle of use is similar to that of the second embodiment.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.

Claims

1. An embedded bluetooth converter for connection with an audio device, comprising:

the audio equipment comprises a connecting base, a control unit and a power supply, wherein the connecting base is provided with an electrode terminal, is arranged on the audio equipment and is electrically connected with the control unit of the audio equipment through the electrode terminal;

the shell is detachably connected with the connecting base, a contact is arranged below the shell, and the contact is electrically connected with an electrode terminal of the connecting base; the shell is provided with a microphone hole;

a circuit board mounted in the housing and electrically connected to the contacts; the circuit board on be provided with bluetooth module, battery and microphone, bluetooth module pass through audio equipment output with received audio signal and export, the battery supply power to bluetooth module, the microphone set up with the position correspondence of microphone hole.

2. The embedded bluetooth converter of claim 1, wherein: the electrode terminal on the connecting base is connected with a control unit of the audio equipment through a lead; or the electrode terminal is in a pin shape and is in direct contact connection with a control unit of the audio equipment.

3. The embedded bluetooth converter of claim 2, wherein: the shell is provided with an elastic clamping hook part, the lower part of the elastic clamping hook part is connected with the shell in a U shape, the upper part of the elastic clamping hook part is a suspended wall pressing end, and the middle part of the elastic clamping hook part is provided with a clamping hook; the connecting base is provided with a clamping groove, the elastic clamping hook piece is inserted into the connecting base, and the clamping hook is buckled in the clamping groove to realize the fixation of the shell and the connecting base; and when the pressing end of the cantilever is pressed, the clamping hook is separated from the clamping groove, so that the shell and the connecting base are detached.

4. The embedded bluetooth converter of claim 1, wherein: the battery be rechargeable battery, the circuit board on still be provided with the charging coil, the charging coil supply rechargeable battery with the electric energy.

5. The embedded bluetooth converter of claim 4, wherein: the circuit board is also provided with a switch which controls the Bluetooth module to be turned on or turned off; the switch is an inductive touch switch, or the switch is a key switch, and the shell is provided with a containing groove for the key switch to extend out.

6. The embedded bluetooth converter of claim 5, wherein: the circuit board formula circuit board as an organic whole or including vertically pile up and first circuit board and the second circuit board of electricity connection each other, charging coil and switch setting on first circuit board, bluetooth module and rechargeable battery set up on the second circuit board.

7. The embedded bluetooth converter of claim 4, wherein: the rechargeable battery is a lithium ion rechargeable button battery.

8. The embedded bluetooth converter of claim 1, wherein: the casing include inferior valve and with the epitheca of inferior valve assembly, the contact set up in the bottom of inferior valve.

9. The embedded bluetooth converter of claim 1, wherein: the contact is a spring type contact pin.

10. The embedded bluetooth converter of claim 9, wherein: the circuit board is fixedly arranged on the upper shell and is electrically connected with the contact through a lead or is directly contacted and connected with the contact through a metal terminal.

11. The embedded bluetooth converter of claim 1, wherein: and part or all of the glue is filled between the circuit board and the shell.

12. An earphone, characterized by: the embedded Bluetooth converter comprises an earphone body and the embedded Bluetooth converter as claimed in any one of claims 1 to 11, wherein the electrode terminal of the connecting base is electrically connected with a control unit of the earphone body.

13. The headset as recited in claim 12, wherein: the earphone body comprises an ear entering body part and a connecting wire, a control unit is arranged in the ear entering body part, a wiring port is arranged on the side edge of the ear entering body part, and the connecting wire is detachably inserted into the wiring port.

14. A sound box is characterized in that: the embedded Bluetooth converter comprises a sound box main body and the embedded Bluetooth converter as claimed in any one of claims 1 to 11, wherein the electrode terminal of the connecting base is electrically connected with a control unit of the sound box main body.