CN210899612U - Bluetooth hearing aid - Google Patents
Bluetooth hearing aid Download PDFInfo
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- CN210899612U CN210899612U CN201922073348.4U CN201922073348U CN210899612U CN 210899612 U CN210899612 U CN 210899612U CN 201922073348 U CN201922073348 U CN 201922073348U CN 210899612 U CN210899612 U CN 210899612U
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- audiphone
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Abstract
The utility model discloses a bluetooth audiphone, including system circuit and power supply circuit, system circuit includes bluetooth IC, audio frequency processing IC, electroacoustic output and peripheral control circuit, and peripheral control circuit handles the IC electricity with bluetooth IC and audio frequency respectively and is connected for switch bluetooth audiphone mode of operation, power supply circuit is including dismantling the power, and bluetooth IC includes low-power consumption bluetooth chip and jam-proof circuit. Implement the utility model discloses, carry out centralized control to the audio processing circuit of audiphone, can effectively control the whole consumption of audiphone and guarantee audio frequency pickup and output tone quality, avoid bluetooth IC and audio frequency to handle IC interference noise problem, adopt chargeable lithium battery power, solved the environmental pollution problem and the extravagant problem that current bluetooth hearing aid appears.
Description
Technical Field
The utility model relates to a audiphone technical field, in particular to bluetooth audiphone that low-power consumption, can jam-proof.
Background
The hearing aid is a product for compensating hearing for hearing impaired people and can be divided into an air conduction type hearing aid and a bone conduction type hearing aid according to different conduction modes; they can be classified into box-type, behind-the-ear, in-the-canal, and in-the-canal hearing aids according to their usage. The original hearing aid principle is based on the frequency loss of the hearing impaired person, and then compensates the frequency of the sound, so that the external sound is normally obtained. Generally, the mobile phone cannot be connected with a communication mode. Due to the limited external power of the handset receiver and the external interference, the hearing aid often cannot make the hearing-impaired people clearly listen to the call sound.
The Bluetooth hearing aid has the Bluetooth function on the basis of the hearing aid, establishes communication connection with a mobile phone through the Bluetooth technology, directly amplifies the received mobile phone call sound and sends the amplified mobile phone call sound into the ear. The method not only can completely pick up the call sound, but also effectively avoids external interference, and provides convenience for the call answering of the hearing-impaired people.
Because the power consumption of Bluetooth internal decoding is large, the working time of the hearing aid with the Bluetooth function is short under the condition of the same battery capacity. If the working time is increased by increasing the battery capacity, the volume and the weight of the hearing aid are easily increased, the appearance is attractive after the battery capacity is increased, and the comfort level is convenient to correspondingly decrease. In terms of power supply, due to the volume limitation of the hearing aid, a zinc-air battery or a built-in lithium battery is generally adopted, the hearing aid can be directly charged, and the zinc-air battery and the direct charging of the hearing aid not only can affect the environment, but also can increase the cost of a user.
The existing Bluetooth hearing aid technology is not mature, and some Bluetooth chips can interfere with the audio processing chip in the cooperation process to generate noise, so that the pickup effect of the hearing aid is influenced.
In the document [ CN209017325U ], in the bluetooth mode, a sound signal collected by a microphone is pre-amplified, enters a bluetooth processing chip and performs sound quality processing therein, and then enters a power amplifier and amplifier circuit to drive a speaker; under the condition of a common mode, the Bluetooth processing chip is switched into the DSP chip for processing, and the circuit is subjected to decentralized control on the whole, so that the control on the power consumption of the hearing aid is not facilitated.
Disclosure of Invention
The existing hearing aid has the defects of circuit dispersion, difficulty in effective control of circuit power consumption and interference between a Bluetooth chip and an audio processing chip.
To above-mentioned problem, provide a bluetooth audiphone, through adopting bluetooth IC and audio processing IC, carry out centralized control to the audio processing circuit of audiphone, be convenient for control the whole consumption of audiphone and guarantee audiphone audio frequency pickup and output tone quality. The hearing aid is switched between a common mode and a Bluetooth mode in time through the peripheral control circuit, and the Bluetooth chip with low power consumption is adopted, so that the power consumption of the Bluetooth chip is lower. The anti-interference circuit is connected to the low-power-consumption Bluetooth chip, so that the problem that the Bluetooth IC and the audio processing IC interfere with noise is avoided, and the pickup effect is improved. Through adopting chargeable lithium battery power, be favorable to solving the environmental pollution problem and the extravagant problem that current bluetooth hearing aid appears.
The utility model provides a bluetooth audiphone, includes system circuit and power supply circuit, system circuit includes bluetooth IC, audio frequency processing IC, electroacoustic output and peripheral control circuit, peripheral control circuit respectively with bluetooth IC and audio frequency processing IC electricity are connected for switch bluetooth audiphone mode of operation, power supply circuit is including dismantling the power, bluetooth IC includes low-power consumption bluetooth chip and jam-proof circuit.
Combine bluetooth audiphone, in the first kind of implementation, peripheral control circuit includes first MIC, bluetooth communication circuit, first electronic switch, second electronic switch and second MIC, the second MIC with bluetooth IC electricity is connected, bluetooth communication circuit passes through first electronic switch with bluetooth IC electricity is connected, second electronic switch with bluetooth IC electricity is connected, and pass through first MIC with the IC electricity is connected is handled to the audio frequency.
Combine bluetooth audiphone, in the second kind of implementation, the jam-proof circuit includes inductance L2 and filter capacitor C15, inductance L2's one end is connected the bluetooth low energy chip, the other end passes through filter capacitor ground connection.
With reference to the first implementation manner, in a third implementation case, the first electronic switch is a touch key switch, and the touch key switch is used for controlling the switch of the bluetooth IC and the selection of the audio content by receiving a user operation signal.
With reference to the first embodiment, in a fourth implementation case, the second electronic switch is an MOS transistor, and the MOS transistor is configured to control turning off of the first MIC by receiving a high-level signal of the bluetooth low energy chip.
Combine bluetooth audiphone, in the fifth kind implementation, removable power supply is rechargeable lithium cell.
Implement a bluetooth audiphone, through adopting bluetooth IC and audio processing IC, carry out centralized control to the audio processing circuit of audiphone, be convenient for control the whole consumption of audiphone and guarantee audiphone audio frequency pickup and output tone quality. The hearing aid is switched between a common mode and a Bluetooth mode in time through the peripheral control circuit, and the Bluetooth chip with low power consumption is adopted, so that the power consumption of the Bluetooth chip is lower. The anti-interference circuit is connected to the low-power-consumption Bluetooth chip, so that the problem that the Bluetooth IC and the audio processing IC interfere with noise is avoided, and the pickup effect is improved. Through adopting chargeable lithium battery power, be favorable to solving the environmental pollution problem and the extravagant problem that current bluetooth hearing aid appears.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is an overall logic block diagram of an embodiment of a bluetooth hearing aid according to the present invention;
fig. 2 is a logic block diagram of an embodiment of the bluetooth hearing aid of the present invention;
fig. 3 is a schematic diagram of the touch key electronic circuit connection in an embodiment of a bluetooth hearing aid of the present invention;
fig. 4 is a logic block diagram of a bluetooth IC of an embodiment of a bluetooth hearing aid of the present invention;
fig. 5 is a schematic diagram of the connection between the audio processing IC and the audio output electronic circuit in an embodiment of the bluetooth hearing aid of the present invention;
fig. 6 is a schematic diagram of the electronic circuit connection of a bluetooth IC in an embodiment of the bluetooth hearing aid of the present invention;
fig. 7 is a schematic diagram of a second MIC electronic circuit connection in an embodiment of a bluetooth hearing aid of the present invention;
fig. 8 is a schematic diagram of the connection of the interference-proof electronic circuit in an embodiment of the bluetooth hearing aid of the present invention;
the part names indicated by the numbers in the drawings are as follows: 100-system circuit, 110-peripheral control circuit, 111-second MIC, 112-Bluetooth communication circuit, 113-first electronic switch, 114-second electronic switch, 115-first MIC, 120-Bluetooth IC, 121-low power consumption Bluetooth chip, 122-anti-interference circuit, 130-audio processing IC, 140-electroacoustic output, 200-power circuit, 210-detachable power supply.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, other embodiments obtained by a person of ordinary skill in the art without creative efforts all belong to the protection scope of the present invention.
The existing hearing aid circuit is dispersed, the circuit power consumption is difficult to control, and the interference exists between the existing Bluetooth chip and the audio processing chip.
To solve the above problem, as shown in fig. 1, fig. 1 is a logic block diagram of an embodiment of the present invention, which provides a bluetooth hearing aid, including a system circuit 100 and a power circuit 200, the system circuit 100 includes a bluetooth IC120, an audio processing IC130, an electroacoustic output 140 and a peripheral control circuit 110, the peripheral control circuit 110 is electrically connected with the bluetooth IC120 and the audio processing IC130 respectively, for switching the working mode of the bluetooth hearing aid, the power circuit 200 includes a detachable power supply 210, and the bluetooth IC120 includes a bluetooth low energy chip 121 and an anti-interference circuit 122.
The bluetooth IC120 and the audio processing IC130 are integrated chip circuits integrated with the bluetooth low energy chip 121 and the audio processing chip, wherein the audio processing chip completes the functions of sound pickup or receiving, amplification and output of the hearing aid. The peripheral control circuit 110 is used to switch between the bluetooth mode and the normal operation mode. In the normal operation mode, the bluetooth low energy chip 121 enters deep sleep, and the standby power consumption thereof reaches microampere level, and the model is preferably NRF52832 series. Through adopting bluetooth IC120 and audio frequency processing IC130, carry out centralized control to the audio frequency processing circuit of audiphone, be convenient for control the whole consumption of audiphone and guarantee audiphone audio frequency pickup and output tone quality. The hearing aid is switched between the normal mode and the Bluetooth mode in time through the peripheral control circuit 110, and the low-power Bluetooth chip 121 is adopted, so that the power consumption of the Bluetooth chip can achieve a lower effect.
Specifically, as shown in fig. 2, fig. 4-7, fig. 2 is a specific logic block diagram of an embodiment of the bluetooth hearing aid of the present invention, fig. 4 is a logic block diagram of a bluetooth IC of an embodiment of the bluetooth hearing aid of the present invention, fig. 5 is a schematic diagram of an audio processing IC and an audio output electronic circuit connection in an embodiment of the bluetooth hearing aid of the present invention, fig. 6 is a schematic diagram of a bluetooth IC electronic circuit connection in an embodiment of the bluetooth hearing aid of the present invention, fig. 7 is a schematic diagram of a second MIC electronic circuit connection in an embodiment of the bluetooth hearing aid of the present invention, and the peripheral control circuit 110 is seen from pin numbers of each IC chip of circuit connection diagrams of the bluetooth IC120 and the audio processing IC130 respectively.
The specific logical connection relationship is as follows: the peripheral control circuit 110 includes a first MIC115, a bluetooth communication circuit 112, a first electronic switch 113, a second electronic switch 114, and a second MIC111, the second MIC111 is electrically connected to the bluetooth IC120, the bluetooth communication circuit 112 is electrically connected to the bluetooth IC120 through the first electronic switch 113, and the second electronic switch 114 is electrically connected to the bluetooth IC120 and electrically connected to the audio processing IC130 through the first MIC 115.
Referring to fig. 3, fig. 3 is a schematic diagram of the touch key electronic circuit connection in an embodiment of the bluetooth hearing aid of the present invention, and the first electronic switch 113 is a touch key switch for controlling the switch of the bluetooth IC120 and the selection of the information content by receiving the user operation signal.
The second electronic switch 114 is a MOS transistor for controlling the turn-off of the first MIC115 by receiving a high level signal of the bluetooth chip.
In the bluetooth working mode, the bluetooth communication circuit 112 receives a bluetooth signal, the user starts the bluetooth low energy chip 121 through the first electronic switch 113, then the bluetooth low energy chip 121 sends a high level to the second electronic switch 114, and then the second electronic switch 114 closes the first MIC115, the call audio passes through the codec of the bluetooth IC120, and then the amplification and the electroacoustic output 140 of the audio processing IC130 are performed, so that the purpose of normally answering the call is achieved, and the user experience is improved.
In the normal operation mode, the first electronic switch 113 is in an on state, the bluetooth IC120 enters deep sleep, and the second MIC111 is turned off to reduce power consumption.
Further, as shown in fig. 8, fig. 8 is a schematic diagram of the anti-interference electronic circuit connection in an embodiment of the bluetooth hearing aid of the present invention, the anti-interference circuit 122 includes an inductor L2 and a filter capacitor C15, the low power consumption bluetooth chip 121 is connected to one end of the inductor L2, and the other end is grounded through the filter capacitor.
Further, the detachable power supply 210 is a rechargeable lithium battery. The rechargeable lithium batteries are multiple, a movable cover or a detachable structure can be arranged on the Bluetooth hearing aid, the rechargeable lithium batteries can be taken out for charging when the rechargeable lithium batteries are used up, and the rechargeable lithium batteries can be provided for standby use in order to facilitate use.
Implement a bluetooth audiphone, handle IC130 through adopting bluetooth IC120 and audio frequency, carry out centralized control to the audio frequency processing circuit of audiphone, be convenient for control the whole consumption of audiphone and guarantee audiphone audio frequency pickup and output tone quality. The hearing aid is switched between the normal mode and the Bluetooth mode in time through the peripheral control circuit 110, and the low-power Bluetooth chip 121 is adopted, so that the power consumption of the Bluetooth chip can achieve a lower effect. Anti-interference circuit 122 is connected on low-power consumption bluetooth chip 121, avoids bluetooth IC120 and audio frequency to handle the appearance of IC130 interference noise problem, is favorable to improving the pickup effect. Through adopting chargeable lithium battery power, be favorable to solving the environmental pollution problem and the extravagant problem that current bluetooth hearing aid appears.
The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. The utility model provides a bluetooth audiphone, its characterized in that includes system circuit and power supply circuit, system circuit with the power supply circuit electricity is connected, system circuit includes bluetooth IC, audio frequency processing IC, electroacoustic output and peripheral control circuit, peripheral control circuit respectively with bluetooth IC and audio frequency processing IC electricity are connected for switch bluetooth audiphone mode of operation, power supply circuit is including dismantling the power, bluetooth IC includes low-power consumption bluetooth chip and jam-proof circuit.
2. The bluetooth hearing aid according to claim 1, wherein the peripheral control circuit comprises a first MIC, a bluetooth communication circuit, a first electronic switch, a second electronic switch, and a second MIC, the second MIC being electrically connected to the bluetooth IC, the bluetooth communication circuit being electrically connected to the bluetooth IC through the first electronic switch, the second electronic switch being electrically connected to the bluetooth IC and being electrically connected to the audio processing IC through the first MIC.
3. The bluetooth hearing aid according to claim 1, wherein the anti-interference circuit comprises an inductor L2 and a filter capacitor C15, one end of the inductor L2 is connected to the bluetooth low energy chip, and the other end is grounded through the filter capacitor C15.
4. The bluetooth hearing aid according to claim 2, wherein the first electronic switch is a touch key switch for controlling switching of the bluetooth IC and selection of audio contents by receiving a user operation signal.
5. The bluetooth hearing aid according to claim 2, wherein the second electronic switch is a MOS transistor for controlling the turn-off of the first MIC by receiving a high level signal of the bluetooth low energy chip.
6. The bluetooth hearing aid according to claim 1, wherein the removable power supply is a rechargeable lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922073348.4U CN210899612U (en) | 2019-11-22 | 2019-11-22 | Bluetooth hearing aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922073348.4U CN210899612U (en) | 2019-11-22 | 2019-11-22 | Bluetooth hearing aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210899612U true CN210899612U (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922073348.4U Active CN210899612U (en) | 2019-11-22 | 2019-11-22 | Bluetooth hearing aid |
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| CN (1) | CN210899612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113507678A (en) * | 2021-07-24 | 2021-10-15 | 武汉左点科技有限公司 | Bluetooth answering method and device of hearing aid |
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2019
- 2019-11-22 CN CN201922073348.4U patent/CN210899612U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113507678A (en) * | 2021-07-24 | 2021-10-15 | 武汉左点科技有限公司 | Bluetooth answering method and device of hearing aid |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518115 No.25, Fenghuang Road, industrial zone, xikengyi village, Henggang street, Longgang District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Pangao Medical Electronics Co.,Ltd. Address before: No. 25, Fenghuang Road, industrial zone, xikengyi village, Henggang street, Longgang District, Shenzhen City, Guangdong Province 518115 Patentee before: SHENZHEN PANGAO ELECTRONIC Co.,Ltd. |
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| CP03 | Change of name, title or address |