CN218734958U - Bone conduction type hearing aid wearing detection circuit and bone conduction type hearing aid - Google Patents
Bone conduction type hearing aid wearing detection circuit and bone conduction type hearing aid Download PDFInfo
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- CN218734958U CN218734958U CN202222333134.8U CN202222333134U CN218734958U CN 218734958 U CN218734958 U CN 218734958U CN 202222333134 U CN202222333134 U CN 202222333134U CN 218734958 U CN218734958 U CN 218734958U
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Abstract
The utility model discloses a detection circuitry and bone conduction formula audiphone are worn to bone conduction formula audiphone, bone conduction formula audiphone have the pickup module, and bone conduction formula audiphone wears detection circuitry and includes: the human body proximity detection sensor is used for detecting the distance between the human body proximity detection sensor and a human body and outputting a corresponding human body proximity detection signal; the control circuit is used for receiving the human body approach detection signal and outputting a closing control signal when the bone conduction hearing aid is detected not to be worn by a user according to the human body approach detection signal; the input end of the switch circuit is connected with the direct current power supply, the output end of the switch circuit is connected with the sound pickup module of the bone conduction hearing aid, and the switch circuit is used for being closed when receiving a closing control signal so as to disconnect the electric connection between the direct current power supply and the sound pickup module. The utility model discloses aim at making bone conduction hearing aid can be when the automated inspection user does not wear to wear, control hearing aid stop work, the battery energy can be saved prevents simultaneously that hearing aid from whistling.
Description
Technical Field
The utility model relates to a audiphone field, in particular to detection circuitry and bone conduction formula audiphone are worn to bone conduction formula audiphone.
Background
Bone conduction formula audiphone can make the user wear more conveniently, it is comfortable and pleasing to the eye, but bone conduction formula audiphone is when taking off, need manual outage, when the user forgets the outage, can lead to battery life to shorten, and the audiphone can leave the duct when taking off, the audiphone combines not well with the contact site of duct, when not enough the seal degree, reveal away through the sound of enlargeing easily, collect enlargeing once more by the microphone, so circulate until reaching the extreme value of audiphone sound output, can arouse outside audiphone to whistle, influence user experience.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a detection circuitry and bone conduction formula audiphone are worn to bone conduction formula audiphone, aim at making bone conduction formula audiphone can control the audiphone stop work when the automated inspection user does not wear to wear, and the battery energy is saved prevents simultaneously that the audiphone from whistling.
In order to achieve the above object, the utility model provides a detection circuitry is worn to bone conduction hearing aid is applied to bone conduction hearing aid, bone conduction hearing aid has the pickup module, detection circuitry is worn to bone conduction hearing aid includes:
the human body approach detection sensor is used for detecting the distance between the bone conduction hearing aid and a human body and outputting a corresponding human body approach detection signal;
the input end of the control circuit is connected with the output end of the human body approach detection sensor, and the control circuit is used for receiving the human body approach detection signal and outputting a closing control signal when detecting that the bone conduction hearing aid is not worn by a user according to the human body approach detection signal;
the controlled end of the switch circuit is connected with the output end of the control circuit, the input end of the switch circuit is used for being connected with a direct current power supply, the output end of the switch circuit is connected with a sound pickup module of the bone conduction hearing aid, and the switch circuit is used for being closed when receiving the closing control signal so as to disconnect the electric connection between the direct current power supply and the sound pickup module.
Optionally, the control circuit is further configured to output a start control signal when it is detected that the bone conduction hearing aid is worn by the user according to the human body proximity detection signal, so as to control the switch circuit to connect the electrical connection between the dc power supply and the sound pickup module.
Optionally, the human proximity detection sensor includes:
the induction sheet is used for detecting the distance between the bone conduction hearing aid and a human body and outputting a corresponding human body approach detection signal;
and one end of the connecting wire is connected with the sensing piece, and the other end of the connecting wire is connected with the input end of the control circuit, so that the control circuit receives the human body approach detection signal output by the sensing piece through the connecting wire.
Optionally, the control circuit comprises:
the input end of the controller is connected with the output end of the human body proximity detection sensor, the output end of the controller is connected with the controlled end of the switch circuit, and the controller is used for receiving the human body proximity detection signal and outputting the on/off control signal to the switch circuit according to the human body proximity detection signal;
the input end of the voltage stabilizing circuit is used for being connected with a direct-current power supply, the output end of the voltage stabilizing circuit is connected with the input end of the controller, and the voltage stabilizing circuit is used for outputting the direct-current power supply to the controller after voltage stabilization.
Optionally, the switch circuit includes a first resistor, a second resistor, a third resistor, a first triode and a second triode, the first end of the first resistor is the controlled end of the switch circuit, the second end of the first resistor is connected to the base of the first triode, the emitter of the first triode is grounded, the collector of the first triode is connected to the first end of the second resistor, the second end of the second resistor is interconnected to the base of the second triode, the first end of the third resistor is connected to the second end of the second triode, the second end of the third resistor is the output end of the switch circuit and is connected to the emitter of the second triode, and the collector of the second triode is the output end of the switch circuit.
Optionally, the bone conduction hearing aid wearing detection circuit further comprises:
the output end of the power supply circuit is connected with the human body proximity detection sensor, the control circuit and the power supply end of the switch circuit, and the power supply circuit is used for supplying working voltage to the human body proximity detection sensor, the control circuit and the switch circuit.
The utility model also provides a bone conduction hearing aid, bone conduction hearing aid include the pickup module and as above bone conduction hearing aid wear detection circuitry.
Optionally, the bone conduction hearing aid further comprises:
the input end of the main controller is connected with the output end of a control circuit in the bone conduction hearing aid wearing detection circuit, the output end of the main controller is connected with the controlled end of a switch circuit in the bone conduction hearing aid wearing detection circuit, the control circuit is further used for outputting a corresponding interrupt signal when detecting that the bone conduction hearing aid is not worn by a user according to a human body approach detection signal, and the main controller is used for receiving and outputting an on/off control signal to the switch circuit according to the interrupt signal to control the switch circuit to turn on/off a direct current power supply and electrically connect the pickup module so as to enable the pickup module to work/stop working.
Optionally, the bone conduction hearing aid comprises:
the human body proximity detection sensor is arranged on the inner wall surface of the shell, and the main controller, the control circuit and the switch circuit are arranged on the circuit board.
The utility model discloses technical scheme detects human position through human body proximity detection sensor to human body proximity detection signal to control circuit that the output corresponds, control circuit can be according to human body proximity detection signal detects when bone conduction formula audiphone is not worn by the user, output closing control signal to switch circuit, switch circuit's input is connected with DC power supply, switch circuit's output and bone conduction formula audiphone's pickup module are connected, switch circuit can close when receiving closing control signal, when switch circuit closes, DC power supply can't export the pickup module to bone conduction formula audiphone, pickup module stop work. The utility model discloses aim at making bone conduction hearing aid can be when the automated inspection user does not wear to wear, control hearing aid stop work, the battery energy can be saved prevents simultaneously that hearing aid from whistling.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a functional block diagram of an embodiment of a bone conduction hearing aid wearing detection circuit according to the present invention;
fig. 2 is a functional block diagram of another embodiment of the bone conduction hearing aid wearing detection circuit according to the present invention;
fig. 3 is a schematic circuit diagram of an embodiment of a switch circuit in the wear detection circuit of the bone conduction hearing aid according to the present invention;
fig. 4 is a schematic product structure diagram of an embodiment of the bone conduction hearing aid of the present invention;
fig. 5 is a front view of an embodiment of the bone conduction hearing aid of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | Human body |
30 | |
| 11 | |
100 | Bone conduction hearing aid wearing |
| 12 | Connecting wire | V | Direct |
| 20 | Control circuit | R1～R3 | First to |
| 21 | Controller | Q1～Q2 | First to |
| 22 | Voltage stabilizing circuit |
The realization, the functional characteristics and the advantages of the utility model are further explained by combining the embodiment and referring to the attached drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a detection circuitry 100 is worn to bone conduction hearing aid is applied to bone conduction hearing aid, bone conduction hearing aid has the pickup module.
Referring to fig. 1 to 5, in an embodiment of the present invention, the bone conduction hearing aid wearing detection circuit 100 includes:
the human body proximity detection sensor 10 is used for detecting the distance between the bone conduction hearing aid and a human body and outputting a corresponding human body proximity detection signal, wherein the human body proximity detection sensor 10 is used for detecting the distance between the bone conduction hearing aid and the human body;
the input end of the control circuit 20 is connected with the output end of the human body proximity detection sensor 10, the control circuit 20 is configured to receive the human body proximity detection signal, and output a shutdown control signal when detecting that the bone conduction hearing aid is not worn by the user according to the human body proximity detection signal;
the controlled end of the switch circuit 30 is connected to the output end of the control circuit 20, the input end of the switch circuit 30 is used for connecting a direct current power supply V, the output end of the switch circuit 30 is connected to a sound pickup module of the bone conduction hearing aid, and the switch circuit 30 is used for being turned off when receiving the turn-off control signal so as to disconnect the electrical connection between the direct current power supply V and the sound pickup module.
In this embodiment, the human body proximity detection sensor 10 may be an induction sheet 11 made of a metal material, or may be a human body pyroelectric sensor, or other induction devices and chips that output corresponding signals when detecting a human body at different distances, and the human body proximity detection sensor 10 may detect a distance between a human body and a bone conduction hearing aid, and output corresponding human body proximity detection signals, for example, when a user takes off the bone conduction hearing aid, when the human body proximity detection sensor 10 detects that the distance between the human body and the human body proximity detection sensor 10 reaches a preset range, a low-level electrical signal may be output, that is, the human body proximity detection signal is output to the control circuit 20, and the specific preset range may be set according to actual conditions and user requirements.
The control circuit 20 may be composed of a controller 21, a resistor, a capacitor, and other components, the controller 21 may be a Digital Signal Processor (DSP), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a microprocessor, an MCU, or other electronic components, the control circuit 20 may output a corresponding control Signal to the switch circuit 30 according to the received human proximity detection signals with different levels, for example, when the control circuit 20 receives a high-level human proximity detection Signal, the control circuit 20 may output a high-level control Signal to the switch circuit 30, and when the control circuit 20 receives a low-level human proximity detection Signal, the control circuit 20 may output a low-level control Signal to the switch circuit 30.
When receiving control signals of different levels, the switch circuit 30 may be in an on state or an off state, the switch circuit 30 may include a plurality of triodes, resistors and other components, or may include a plurality of MOS transistors, resistors and other components, and may be set according to actual requirements, the switch circuit 30 may be set such that the controlled terminal is turned on when receiving a control signal of a high level, the controlled terminal is turned off when receiving a control signal of a low level, when the switch circuit 30 is turned on, the control dc power supply V is electrically connected to the sound pickup module, the dc power supply V connected to the input terminal of the switch circuit 30 may output a dc voltage to the sound pickup module of the bone conduction hearing aid connected to the output terminal of the switch circuit 30, so as to drive the sound pickup module to start working, when the switch circuit 30 is turned off, the dc power supply V connected to the sound pickup module may be disconnected, so that the dc power supply V connected to the input terminal of the switch circuit 30 may not output the sound pickup module of the bone conduction hearing aid connected to the output terminal of the switch circuit 30, and at this time, the sound pickup module stops working. This scheme detects human position through human proximity detection sensor 10, can in time close the pickup module when the user takes off bone conduction hearing aid, practices thrift battery power, can also prevent to arouse to whistle, promotes user experience.
The utility model discloses technical scheme detects human position through human proximity detection sensor 10 to human proximity detection signal to control circuit 20 that the output corresponds, control circuit 20 can be according to human proximity detection signal detects when bone conduction hearing aid is not worn by the user, output closing control signal to switch circuit 30, switch circuit 30's input is connected with DC power supply V, switch circuit 30's output is connected with the pickup module of bone conduction hearing aid, switch circuit 30 can be closed when receiving closing control signal, when switch circuit 30 closes, DC power supply V can't export the pickup module to bone conduction hearing aid, pickup module stop work. The utility model discloses aim at making bone conduction hearing aid can be when the automated inspection user does not wear to wear, control hearing aid stop work, the battery energy can be saved prevents simultaneously that hearing aid from whistling.
Referring to fig. 1 to 5, in an embodiment, the control circuit 20 is further configured to output a turn-on control signal to control the switch circuit 30 to connect the electrical connection between the dc power supply V and the sound pickup module when it is detected that the bone conduction hearing aid is worn by the user according to the human body proximity detection signal.
In this embodiment, when the user will wear the bone conduction hearing aid, human body approach detection sensor 10 is detecting when the distance between human body and the human body approach detection sensor 10 reaches the preset scope, can output the signal of telecommunication of high level, human body approach detection signal to control circuit 20 promptly, so that control circuit 20 output opens control signal, control switch circuit 30 intercommunication dc power supply V and the electricity between the pickup module is connected, thereby make the pickup module begin to work, do not need the user to open manually, the convenience has been promoted, specific preset scope can set up according to actual conditions and user's demand. In this embodiment, when detecting that the bone conduction hearing aid is worn by the user according to the human body approach detection signal, the control circuit 20 outputs the start control signal to control the switch circuit 30 to connect the electrical connection between the dc power supply V and the sound pickup module, so that the user does not manually control the start of the bone conduction hearing aid, thereby improving the convenience.
Referring to fig. 1 to 5, in an embodiment, the human proximity detection sensor 10 includes:
the bone conduction hearing aid comprises a sensing piece 11, a signal processing module and a control module, wherein the sensing piece 11 is used for detecting the distance between the bone conduction hearing aid and a human body and outputting a corresponding human body approach detection signal;
and one end of the connecting wire 12 is connected with the sensing piece 11, and the other end of the connecting wire 12 is connected with the input end of the control circuit 20, so that the control circuit 20 receives the human body approach detection signal output by the sensing piece 11 through the connecting wire 12.
In this embodiment, the sensing piece 11 may be a metal plate, the metal plate may be made of metal material such as copper, the sensing piece 11 is connected to the input end of the control circuit 20 through the connection line 12, the connection line 12 may be a short electric wire, the human body approach detection sensor 10 is disposed in the bone conduction hearing aid, so the sensing piece 11 is also disposed in the bone conduction hearing aid, the sensing piece 11 may be disposed in close contact with the inner wall surface of the shell of the bone conduction hearing aid, when a human body approaches or leaves the bone conduction hearing aid, the capacitance between the skin of the human body and the metal plate may also change, a corresponding electric signal is output through the connection line 12, that is, the human body approach detection signal is transmitted to the control circuit 20, the controller 21 in the control circuit 20 may convert the electric signal into a corresponding capacitance value, then, according to a preset capacitance-distance mapping table, the distance between the metal plate and the skin of the human body is determined, when the distance is sufficiently small, the human body is determined that the bone conduction hearing aid has been worn, the controller 21 may output a corresponding control signal to stop the operation of the pickup circuit, and the pickup circuit is determined that the sound pickup module has been disconnected, when the distance is sufficiently large, the sound pickup circuit has been disconnected, and the pickup module has been disconnected; the capacitance-space mapping table can be set according to the material of the metal plate, and the distance for judging whether the human body is close enough or far enough can also be set according to the actual condition and the user requirement. In the present embodiment, the human body proximity detection sensor 10 formed by the sensing sheet 11 and the connecting wire 12 can detect whether a human body is approaching, and output a corresponding human body proximity detection signal to the control circuit 20.
Referring to fig. 1 to 5, in an embodiment, the control circuit 20 includes:
a controller 21, an input end of the controller 21 is connected to an output end of the human body proximity detection sensor 10, an output end of the controller 21 is connected to a controlled end of the switch circuit 30, and the controller 21 is configured to receive the human body proximity detection signal and output the on/off control signal to the switch circuit 30 according to the human body proximity detection signal;
the input end of the voltage stabilizing circuit 22 is used for accessing a direct current power supply V, the output end of the voltage stabilizing circuit 22 is connected with the input end of the controller 21, and the voltage stabilizing circuit 22 is used for outputting the direct current power supply V to the controller 21 after voltage stabilization.
In this embodiment, the controller 21 may also adopt a microprocessor, an MCU or other electronic components, the voltage regulator 22 may be composed of a linear regulator, a plurality of resistors and other electrical components, the linear regulator may generate a regulated output voltage, and all products thereof adopt a small package, which has excellent performance, and provide value-added characteristics such as thermal overload protection, safety current limiting, etc., and the power consumption may be greatly reduced in the shutdown mode, so the voltage regulator 22 may output the regulated dc power V to the controller 21 to prevent the dc power V from being over-high in voltage, which may cause the controller 21 in the control circuit 20 to be damaged, and reduce the power consumption of the circuit. In the present embodiment, the control circuit 20 formed by the controller 21 and the voltage stabilizing circuit 22 can control the switch circuit 30 to be turned on/off when the user wears or takes off the bone conduction hearing aid, so as to control the operation/stop of the sound pickup module of the bone conduction hearing aid.
Referring to fig. 1 to 5, in an embodiment, the switching circuit 30 includes a first resistor R1, a second resistor R2, a third resistor R3, a first transistor Q1 and a second transistor Q2, a first end of the first resistor R1 is a controlled end of the switching circuit 30, a second end of the first resistor R1 is connected to a base of the first transistor Q1, an emitter of the first transistor Q1 is grounded, a collector of the first transistor Q1 is connected to a first end of the second resistor R2, a second end of the second resistor R2 is interconnected with a first end of the third resistor R3 and a base of the second transistor Q2, a second end of the third resistor R3 is an output end of the switching circuit 30 and is connected to an emitter of the second transistor Q2, and a collector of the second transistor Q2 is an output end of the switching circuit 30.
In this embodiment, the first resistor R1 is a current-limiting resistor, which can limit the current in the circuit and prevent the excessive current from damaging the components in the switch circuit 30, the second resistor R2 is a pull-down resistor, the third resistor R3 is a pull-up resistor, the first triode Q1 can be an NPN diode, the second triode Q2 can be a PNP triode, when the base of the first triode Q1 receives a high-level electrical signal, the first triode Q1 is turned on, the voltage at the base of the second triode Q2 can be pulled down to the ground through the second resistor R2, when the base voltage of the second triode Q2 is low, the second triode Q2 is turned on, and the dc voltage input from the emitter of the second triode Q2 can be output to the pickup module through the collector, so that the pickup module starts to operate; when the base of the first triode Q1 receives the electric signal of low level, the first triode Q1 is cut off, the base voltage of the second triode Q2 is pulled high by the third resistor R3, the second triode Q2 is cut off, the direct current voltage input by the emitter of the second triode Q2 cannot be output to the pickup module through the collector, and the pickup module stops working at the moment. In this embodiment, the switch circuit 30 formed by the first resistor R1, the second resistor R2, the third resistor R3, the first transistor Q1 and the second transistor Q2 may be turned on or off when receiving electric signals of different levels, i.e., control signals, so that the sound pickup module starts to operate or stops operating.
In an embodiment, the bone conduction hearing aid wearing detection circuit 100 further comprises:
and the output end of the power supply circuit is connected with the human body proximity detection sensor 10, the control circuit 20 and the power supply end of the switch circuit 30, and the power supply circuit is used for providing working voltage for the human body proximity detection sensor 10, the control circuit 20 and the switch circuit 30.
In this embodiment, the power circuit may be implemented by a DC-DC circuit, and the power circuit may convert an external power voltage into a working voltage suitable for the human proximity detection sensor 10, the control circuit 20, and the switch circuit 30, so as to prevent the human proximity detection sensor 10, the control circuit 20, and the switch circuit 30 from receiving a high working voltage to cause damage to the device, or receiving a low working voltage to cause the device to work abnormally. In this embodiment, the power circuit provides the working voltage to the human proximity detection sensor 10, the control circuit 20 and the switch circuit 30, so that the bone conduction hearing aid wearing detection circuit 100 can work normally.
The utility model also provides a bone conduction hearing aid, bone conduction hearing aid includes as above bone conduction hearing aid wears detection circuitry 100, and this bone conduction hearing aid wears detection circuitry 100's specific structure refers to above-mentioned embodiment, because this bone conduction hearing aid has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, does not give unnecessary detail here one by one.
In an embodiment, the bone conduction hearing aid further comprises:
the input end of the main controller is connected with the output end of the control circuit 20 in the bone conduction type hearing aid wearing detection circuit 100, the output end of the main controller is connected with the controlled end of the switch circuit 30 in the bone conduction type hearing aid wearing detection circuit 100, the control circuit 20 is further used for outputting a corresponding interrupt signal when detecting that the bone conduction type hearing aid is not worn by a user according to a human body approach detection signal, the main controller is used for receiving and outputting an on/off control signal to the switch circuit 30 according to the interrupt signal, and controlling the switch circuit 30 to turn on/off a direct current power supply V and be electrically connected with the sound pickup module so as to enable the sound pickup module to work/stop working.
In this embodiment, the main controller may also be a Digital Signal Processor (DSP), a Programmable Logic Device (PLD) or other electronic components, and since the bone conduction hearing aid has a plurality of functional modules, such as wireless connection and voice output, each functional module may be correspondingly provided with a control circuit 20 and then respectively controlled by the main controller, in this embodiment, the control circuit 20 may be used as the control circuit 20 of the wearable detection module, the main controller may communicate with the controller 21 in the control circuit 20 through I2C to receive the interrupt Signal output by the control circuit 20 and output an on/off control Signal to the switch circuit 30 according to the interrupt Signal, the switch circuit 30 is controlled to turn on/off the direct current power V and the sound pickup module, so that the sound pickup module operates/stops, for example, when the user wants to wear the bone conduction hearing aid, the human proximity detection sensor 10 detects that a human body is close, outputs a high-level human proximity detection Signal to the control circuit 20, the control circuit 20 outputs the high-level interrupt Signal to the sound pickup module, and starts to output the high-level detection Signal corresponding to the sound pickup circuit 30; when the user wants to take off the bone conduction hearing aid, the human body approach detection sensor 10 detects that the human body is far away from the bone conduction hearing aid, and outputs a low-level human body approach detection signal to the control circuit 20, the control circuit 20 outputs a low-level interrupt signal, and when the main controller receives the low-level interrupt signal, the main controller correspondingly outputs a low-level control signal, so that the switch circuit 30 is turned off, and the sound pickup module cannot receive the working voltage and stops working.
Referring to fig. 1 to 5, in an embodiment the bone conduction hearing aid comprises:
the human body proximity detection device comprises a shell, wherein an accommodating cavity is formed in the shell, a circuit board is accommodated in the accommodating cavity, the human body proximity detection sensor 10 is arranged on the inner wall surface of the shell, and the main controller, the control circuit 20 and the switch circuit 30 are arranged on the circuit board.
In this embodiment, the housing may be used to fix the position relationship of the circuit board, so as to ensure the safety and stability inside the accommodating cavity formed in the shell of the bone conduction hearing aid, and when the bone conduction hearing aid works, the position relationship of the circuit board does not change, and external gas or objects cannot fall on the circuit board, which affects the work of the human proximity detection sensor 10, the control circuit 20 and the switch circuit 30 on the circuit board; the shell also has a protection effect on the exterior of the bone conduction hearing aid, and the shell mainly has a better bearing effect on external force by virtue of the middle surface stress uniformly distributed along the thickness; the proximity detection sensor is arranged on the inner wall surface of the shell, so that the distance between the human body and the proximity detection sensor can be better detected.
The above is only the optional embodiment of the present invention, and not therefore the limit to the patent scope of the present invention, all the technical ideas of the present invention are utilized, the equivalent structure transformation made by the contents of the specification and the drawings, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (9)
1. The utility model provides a detection circuitry is worn to bone conduction hearing aid, is applied to bone conduction hearing aid, bone conduction hearing aid has the pickup module, its characterized in that, detection circuitry is worn to bone conduction hearing aid includes:
the human body approach detection sensor is used for detecting the distance between the bone conduction hearing aid and a human body and outputting a corresponding human body approach detection signal;
the input end of the control circuit is connected with the output end of the human body proximity detection sensor, and the control circuit is used for receiving the human body proximity detection signal and outputting a closing control signal when detecting that the bone conduction hearing aid is not worn by a user according to the human body proximity detection signal;
the controlled end of the switch circuit is connected with the output end of the control circuit, the input end of the switch circuit is used for being connected with a direct current power supply, the output end of the switch circuit is connected with a sound pickup module of the bone conduction hearing aid, and the switch circuit is used for being closed when receiving the closing control signal so as to disconnect the electric connection between the direct current power supply and the sound pickup module.
2. The bone conduction hearing aid wearing detection circuit according to claim 1, wherein the control circuit is further configured to output an on control signal to control the switch circuit to connect the electrical connection between the dc power supply and the sound pickup module when the bone conduction hearing aid is detected to be worn by the user according to the human body proximity detection signal.
3. The bone conduction hearing aid wearing detection circuit according to claim 1, wherein the human proximity detection sensor comprises:
the induction sheet is used for detecting the distance between the bone conduction hearing aid and a human body and outputting a corresponding human body approach detection signal;
and one end of the connecting wire is connected with the sensing piece, and the other end of the connecting wire is connected with the input end of the control circuit, so that the control circuit receives the human body approach detection signal output by the sensing piece through the connecting wire.
4. The bone conduction hearing aid wear detection circuit of claim 1, wherein the control circuit comprises:
the input end of the controller is connected with the output end of the human body proximity detection sensor, the output end of the controller is connected with the controlled end of the switch circuit, and the controller is used for receiving the human body proximity detection signal and outputting an on/off control signal to the switch circuit according to the human body proximity detection signal;
the input end of the voltage stabilizing circuit is used for being connected with a direct-current power supply, the output end of the voltage stabilizing circuit is connected with the input end of the controller, and the voltage stabilizing circuit is used for outputting the direct-current power supply to the controller after voltage stabilization.
5. The bone conduction hearing aid wear detection circuit according to claim 1, wherein the switching circuit comprises a first resistor, a second resistor, a third resistor, a first transistor, and a second transistor, wherein a first terminal of the first resistor is a controlled terminal of the switching circuit, a second terminal of the first resistor is connected to a base of the first transistor, an emitter of the first transistor is grounded, a collector of the first transistor is connected to a first terminal of the second resistor, a second terminal of the second resistor is interconnected with a first terminal of the third resistor and a base of the second transistor, a second terminal of the third resistor is an output terminal of the switching circuit and is connected to an emitter of the second transistor, and a collector of the second transistor is an output terminal of the switching circuit.
6. The bone conduction hearing aid wear detection circuit of claim 1, further comprising:
the output end of the power supply circuit is connected with the human body proximity detection sensor, the control circuit and the power supply end of the switch circuit, and the power supply circuit is used for supplying working voltage to the human body proximity detection sensor, the control circuit and the switch circuit.
7. Bone conduction hearing aid, characterized in that it comprises a microphone module and a bone conduction hearing aid wearing detection circuit according to any one of claims 1-6.
8. The bone conduction hearing aid according to claim 7, wherein the bone conduction hearing aid further comprises:
the input end of the main controller is connected with the output end of the control circuit in the bone conduction type hearing aid wearing detection circuit, the output end of the main controller is connected with the controlled end of the switch circuit in the bone conduction type hearing aid wearing detection circuit, the control circuit is further used for outputting a corresponding interrupt signal when detecting that the bone conduction type hearing aid is not worn by a user according to a human body approach detection signal, the main controller is used for receiving and outputting an on/off control signal to the switch circuit according to the interrupt signal, and the switch circuit is controlled to turn on/off a direct current power supply and be electrically connected with the pickup module, so that the pickup module works/stops working.
9. Bone conduction hearing aid according to claim 8, characterized in that it comprises:
the human body proximity detection device comprises a shell, wherein a containing cavity is formed in the shell, a circuit board is contained in the containing cavity, the human body proximity detection sensor is arranged on the inner wall surface of the shell, and the main controller, the control circuit and the switch circuit are arranged on the circuit board.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222333134.8U CN218734958U (en) | 2022-08-31 | 2022-08-31 | Bone conduction type hearing aid wearing detection circuit and bone conduction type hearing aid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222333134.8U CN218734958U (en) | 2022-08-31 | 2022-08-31 | Bone conduction type hearing aid wearing detection circuit and bone conduction type hearing aid |
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| CN218734958U true CN218734958U (en) | 2023-03-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117499840A (en) * | 2024-01-03 | 2024-02-02 | 广州市锐丰音响科技股份有限公司 | Operation module with sound device |
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2022
- 2022-08-31 CN CN202222333134.8U patent/CN218734958U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117499840A (en) * | 2024-01-03 | 2024-02-02 | 广州市锐丰音响科技股份有限公司 | Operation module with sound device |
| CN117499840B (en) * | 2024-01-03 | 2024-04-30 | 广州市锐丰音响科技股份有限公司 | Operation module with sound device |
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Address after: 1612, Huafeng International Business Building, No. 4018 Bao'an Avenue, Yantian Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong Province, 518000 Patentee after: Shenzhen Shengtong Technology Co.,Ltd. Country or region after: China Address before: 520, block a, Huafeng Baoan Zhigu science and Technology Innovation Park, No.4, Yintian Road, Yantian community, Xixiang street, Bao'an District, Shenzhen, Guangdong 518000 Patentee before: Shenzhen Shengtong Technology Co.,Ltd. Country or region before: China |
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