CN217935948U

CN217935948U - Earphone tester

Info

Publication number: CN217935948U
Application number: CN202222312845.7U
Authority: CN
Inventors: 陈超越; 吕建涛
Original assignee: Zhejiang Yiwu Airport Management Co ltd
Current assignee: Zhejiang Yiwu Airport Management Co ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2022-11-29
Anticipated expiration: 2032-08-30

Abstract

The utility model relates to an earphone tester, including casing, power module, headset interface, audio power amplification module, trapper, power module is the power supply of audio power amplification module, trapper, and the MIC end of headset interface is connected with the IN + end of audio power amplification module, and the OUT end of audio power amplification module is connected with the IN + end of trapper, and the OUT + end of trapper is connected with the SPK end of headset interface. By adopting the scheme, the earphone tester can be used for inserting the earphone to be checked into the earphone interface so as to determine whether the earphone is normal or not by speaking into the microphone and hearing the sound at the earphone.

Description

Earphone tester

Technical Field

The utility model relates to an earphone tester.

Background

Airline crew members need to frequently use aviation earphones to communicate with cockpit crew during daily work. During the maintenance operation of the air line, the normality of the flight entering and exiting the port can be directly influenced once the aviation earphone fails. In an emergency situation, failure to contact the unit in a timely manner may result in a series of unsafe events.

Currently, airline crew cannot confirm the integrity of the functions of the earphones in the preparation stage of work, and can only find out the faults of the earphones in work, thereby inevitably affecting the guarantee work of the airline flights.

Therefore, how to confirm the normality of the aviation earphone in the preparation stage becomes a problem to be solved urgently for the technicians in the field.

Disclosure of Invention

To the deficiency that prior art exists, the utility model aims to provide a can insert the headset interface with the earphone that needs the inspection and realize confirming whether earphone is normal or not through speaking to the microphone and hearing sound at the earphone.

In order to achieve the above purpose, the utility model provides a following technical scheme: the headset comprises a shell, a power supply module, a headset interface and an audio power amplification module, wherein the power supply module supplies power for the audio power amplification module, the MIC end of the headset interface is connected with the IN + end of the audio power amplification module, and the OUT end of the audio power amplification module is used for transmitting signals to the SPK end of the headset interface to be connected.

The utility model discloses further set up to: the earphone is characterized by further comprising a wave trap, the power supply module supplies power to the wave trap, the OUT end of the audio power amplification module is connected with the IN + end of the wave trap, and the OUT + end of the wave trap is connected with the SPK end of the earphone interface.

The utility model discloses further set up to: the microphone also comprises a sound volume indicator, the power supply module supplies power to the sound volume indicator, and the IN + end of the sound volume indicator is connected with the MIC end of the headset interface.

The utility model discloses further set up to: the power supply module also comprises a working voltage indicator used for detecting the voltage at two ends of the power supply module.

The utility model discloses further set up to: the circuit also comprises a working switch for controlling the on-off of the circuit.

The utility model discloses further set up to: still including the contrast earphone, the contrast earphone is provided with plug, lead wire, control module, left ear subassembly, auris dextra subassembly, and the plug sets up in lead wire one end, and control module sets up in the lead wire other end, and left ear subassembly and auris dextra subassembly are connected control module respectively, are provided with on the casing to be used for the connecting piece of pin connection in casing.

The utility model discloses further set up to: the connecting piece includes the installation department at the U-shaped both ends of the spacing portion of spacing portion and being the U-shaped, and each installation department adopts bolt fixed mounting in the casing, and the lead wire is worn to locate in the spacing portion.

The utility model discloses further set up to: the connecting piece sets up in the casing upper end, the casing upper end is provided with and supplies the built-in first built-in groove of connecting piece, the casing upper end is located the connecting piece and is provided with and supplies the built-in second built-in groove of plug towards the plug side, the casing upper end is located the connecting piece and is provided with and supply control module towards control module side, left ear subassembly, the built-in third of right ear subassembly puts the groove, the casing upper end is located and is provided with first metallic channel between first built-in groove and the built-in groove of second, the casing upper end is located and is provided with the second metallic channel between first built-in groove and the built-in groove of third.

By adopting the technical scheme, the airline crew member inserts the earphone to be used into the headset interface in the work preparation stage and speaks into the microphone of the earphone, if the microphone is normal, the signal generated by the microphone is transmitted to the audio function amplification module by the MIC end of the headset interface to be processed and is output to the SPK end of the headset interface, and if the earphone is normal, the earphone plays the speaking into the microphone, so that whether the earphone is normal or not is quickly confirmed in the preparation stage, and the situation that the crew flight support work is influenced by the failed earphone in the work process is prevented.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a circuit diagram of an embodiment of the present invention;

FIG. 2 is an assembly view of an embodiment of the present invention;

fig. 3 is an enlarged view of a in fig. 2.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

As shown IN fig. 1-fig. 3, the utility model discloses an earphone tester, including being square casing 1, power module 2, headset interface 3 (this embodiment adopts 6.35 mm's earphone interface), audio power amplification module 4, what this embodiment adopted is the LM386 chip, power module 2 adopts 5V's direct current, wherein, power module 2's positive and negative both ends and realization circular telegram are connected respectively to audio power amplification module 4's V + end and V-end, the MIC end of headset interface 3 is connected with audio power amplification module 4's IN + end, IN addition, the OUT end of audio power amplification module 4 is used for connecting signal transmission to headset interface 3's SPK end.

Therefore, the airline crew inserts the earphone to be used into the headset interface 3 IN the work preparation stage and speaks the microphone of the earphone, if the microphone is normal, the signal generated by the microphone is transmitted from the MIC terminal of the headset interface 3 to the IN + terminal of the audio function amplification module, so that the signal is output back to the SPK terminal of the headset interface 3 by the OUT terminal of the audio power amplification module 4 after being processed by the audio function amplification module, and if the earphone is normal, the earphone plays the speaking of the microphone, thereby quickly confirming whether the earphone is normal IN the preparation stage and preventing the flight guarantee work of the airline flight from being influenced by the faulty earphone IN the work.

IN addition, the present embodiment further includes a 50HZ wave trap 5, and the present embodiment adopts a double T-type band-stop analog filter, wherein the V + end and the V-end of the 50HZ wave trap 5 are respectively connected to the positive end and the negative end of the power module 2 to realize power-on, the OUT end of the audio power amplification module 4 is connected to the IN + end of the 50HZ wave trap 5, and the OUT + end of the 50HZ wave trap 5 is connected to the SPK end of the headset interface 3, so that the 50HZ wave trap 5 eliminates noise generated by current IN the loop, and ensures inspection quality.

IN addition, this embodiment still includes sound volume indicator 6, and what this embodiment adopted is multi-mode monophonic LED sound volume indicator, and the V + end and the V-end of sound volume indicator 6 are connected respectively the positive negative both ends of power module 2 and are realized the circular telegram, and IN addition, the IN + end of sound volume indicator 6 is connected with the MIC end of headset interface 3 for sound volume indicator 6 can analyze the real-time data that the microphone produced and convert light signal into and react.

In addition, this embodiment still includes operating voltage indicator 7 that is used for detecting the voltage at power module 2 both ends, and the adoption of this embodiment is 4-100V LED digital display direct current voltmeter, and the positive and negative both ends of operating voltage indicator 7 are connected power module 2 positive and negative both ends respectively for the detection of voltage is carried out through operating voltage indicator 7, ensures the normal power supply of current voltage.

In addition, the present embodiment further includes a working switch 11 for controlling the on/off of the circuit, so as to be turned on when the earphone needs to be checked and turned off when the detection is not needed.

In addition, this embodiment still includes comparison earphone 8, comparison earphone 8 is provided with plug 81, lead wire 82, control module 83, left ear subassembly 84, right ear subassembly 85, plug 81 sets up in lead wire 82 one end, control module 83 sets up in the lead wire 82 other end, left ear subassembly 84 and right ear subassembly 85 are connected control module 83 respectively, be provided with the connecting piece 9 that is used for connecting lead wire 82 in casing 1 on the casing 1, make before the earphone that needs the inspection, insert headset interface 3 through comparing plug 81 of earphone 8 earlier and inspect, ensure the validity of the circuit function of earphone tester, prevent the damage of the earphone of wrong judgement inspection because of the damage of earphone tester, in addition, connecting piece 9 then will compare earphone 8 and install in casing 1, be used for distinguishing the earphone that needs the inspection.

Wherein, connecting piece 9 in this embodiment is including the installation department 92 at the U-shaped both ends of the spacing portion 91 that is the U-shaped and spacing portion 91, each installation department 92 adopts bolt fixed mounting in casing 1, lead wire 82 wears to locate in spacing portion 91, therefore, because lead wire 82 wears to locate in spacing portion 91, then guarantee to compare earphone 8 and can't follow the casing and dismantle under the effect of plug 81 and control module 83, play the purpose of preventing losing, and lead wire 82 can remove along length direction, then portable to compare earphone 8 and guarantee the convenience of using, in addition, installation department 92 adopts bolt fastening, then can be under the condition that comparison earphone 8 damages, dismantle connecting piece 9 and carry out the change of comparison earphone 8.

In addition, the connecting part 9 in this embodiment is disposed at the upper end of the casing 1, the first built-in slot 12 for the connecting part 9 to be built in is disposed at the upper end of the casing 1, the second built-in slot 13 for the plug 81 to be built in is disposed at the upper end of the casing 1, the third built-in slot for the control module 83, the left ear assembly 84 and the right ear assembly 85 is disposed at the upper end of the casing 1, the first wire slot 15 is disposed between the first built-in slot 12 and the second built-in slot 13 at the upper end of the casing 1, and the second wire slot 16 is disposed between the first built-in slot 12 and the third built-in slot 14 at the upper end of the casing 1, so that the comparison earphone 8 can be completely disposed in the casing 1 when the comparison earphone 8 is not needed, and the upper portion of the casing 1 can be used flatly.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An earphone tester which is characterized in that: the headset comprises a shell, a power module, a headset interface and an audio power amplification module, wherein the power module supplies power for the audio power amplification module, the MIC end of the headset interface is connected with the IN + end of the audio power amplification module, and the OUT end of the audio power amplification module is used for transmitting signals to the SPK end of the headset interface for connection.

2. The headset tester of claim 1, wherein: the earphone is characterized by further comprising a wave trap, the power supply module supplies power to the wave trap, the OUT end of the audio power amplification module is connected with the IN + end of the wave trap, and the OUT + end of the wave trap is connected with the SPK end of the earphone interface.

3. The earphone tester of claim 1, wherein: the microphone also comprises a sound volume indicator, the power supply module supplies power to the sound volume indicator, and the IN + end of the sound volume indicator is connected with the MIC end of the headset interface.

4. The earphone tester of claim 1, wherein: the power supply module also comprises a working voltage indicator used for detecting the voltage at two ends of the power supply module.

5. The headset tester of claim 1, wherein: the circuit also comprises a working switch for controlling the on-off of the circuit.

6. An earphone tester as claimed in any one of claims 1-5, wherein: still including the contrast earphone, the contrast earphone is provided with plug, lead wire, control module, left ear subassembly, auris dextra subassembly, and the plug sets up in lead wire one end, and control module sets up in the lead wire other end, and left ear subassembly and auris dextra subassembly are connected control module respectively, are provided with on the casing to be used for with the connecting piece of pin connection in casing.

7. The earphone test instrument of claim 6, wherein: the connecting piece includes the installation department at the U-shaped both ends of the spacing portion of spacing portion and being the U-shaped, and each installation department adopts bolt fixed mounting in the casing, and the lead wire is worn to locate in the spacing portion.

8. The headset tester of claim 7, wherein: the connecting piece sets up in the casing upper end, the casing upper end is provided with and supplies the built-in first built-in groove of connecting piece, the casing upper end is located the connecting piece and is provided with and supplies the built-in second built-in groove of plug towards the plug side, the casing upper end is located the connecting piece and is provided with and supply control module towards control module side, left ear subassembly, the built-in third of right ear subassembly puts the groove, the casing upper end is located and is provided with first metallic channel between first built-in groove and the built-in groove of second, the casing upper end is located and is provided with the second metallic channel between first built-in groove and the built-in groove of third.