CN215453278U - Earphone loudspeaker phase testing arrangement - Google Patents

Earphone loudspeaker phase testing arrangement Download PDF

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Publication number
CN215453278U
CN215453278U CN202122039295.1U CN202122039295U CN215453278U CN 215453278 U CN215453278 U CN 215453278U CN 202122039295 U CN202122039295 U CN 202122039295U CN 215453278 U CN215453278 U CN 215453278U
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China
Prior art keywords
circuit board
phase
testing device
earphone
comparator
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Active
Application number
CN202122039295.1U
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Chinese (zh)
Inventor
范奕良
黄荣
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Shenzhen Huayunxin Electronic Co ltd
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Shenzhen Huayunxin Electronic Co ltd
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Priority to CN202122039295.1U priority Critical patent/CN215453278U/en
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Abstract

The utility model discloses a phase testing device for an earphone speaker, which comprises a shell, a power supply and a phase recognition circuit board, wherein the power supply and the phase recognition circuit board are respectively arranged in the shell, the power supply supplies power to the phase recognition circuit board, a counting screen is embedded on the surface of the shell and is connected with the phase recognition circuit board, a testing hole and a control button for placing the earphone speaker are respectively arranged on the shell, and the control button is connected with the phase recognition circuit board. The earphone horn phase testing device adopts the rechargeable power supply, the power supply and the phase recognition circuit board are respectively arranged in the shell, and the counting screen is embedded on the shell, so that the testing device is simple and compact in structure, the overall size of the testing device is reduced, the testing device is small in size and can be flexibly moved and used at any station of a production line, in addition, the counting screen can count qualified products or unqualified products, and data can be conveniently counted so as to be convenient for management.

Description

Earphone loudspeaker phase testing arrangement
Technical Field
The utility model relates to the technical field of testing devices, in particular to a phase testing device for an earphone speaker.
Background
Headphones (also known as ear muffs or earphones) are a pair of conversion units that receive electrical signals from a media player or receiver and convert them into audible sound waves using speakers near the ears. The earphone is generally separable from the media player, and the wearing modes include in-ear type, head-wearing type, earplug type and the like, so that the earphone is multipurpose for mobile phones, walkmans, radios, portable electric games and the like, and is also used for computers and Hi-fi sound equipment.
The phase test must be carried out to earphone loudspeaker in the production process, so-called positive and negative polarity test, make a colour sign to the polarity after the test, current test method all adopts desk-top phase tester, but this phase tester's is bulky, and power consumptive much, and inconvenient online removal uses, in addition, this phase tester can not make statistics of to the result of testing, consequently, the data of the good product of inaccurate understanding detection and defective products.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an earphone horn phase testing device which is simple in structure, small in size, convenient to use and capable of counting data.
In order to solve the above technical problems, the present invention can be implemented by adopting the following technical scheme:
the utility model provides an earphone loudspeaker phase place testing arrangement, includes casing, power and phase place discernment circuit board set up respectively in the casing, and the power supplies power to the phase place discernment circuit board, shell surface inlays and has the count screen to be connected with the phase place discernment circuit board, still be provided with respectively on the casing and be used for carrying out the test hole placed to earphone loudspeaker and control button, just control button is connected with the phase place discernment circuit board.
In one embodiment, the phase recognition circuit board comprises a signal sounder, a microphone, an MIC amplifier and a comparator, wherein the output end of the signal sounder is respectively connected with the comparator and the input end of the tested earphone loudspeaker, the output end of the microphone is connected with the input end of the comparator through the MIC amplifier, the position of the microphone corresponds to the position of the test hole, and the output end of the comparator is connected with the input end of the counting screen.
In one embodiment, the phase identification circuit board further comprises a buzzer, and an input end of the buzzer is connected with an output end of the comparator.
In one embodiment, the power source is a rechargeable power source.
The utility model has the beneficial effects that: the earphone horn phase testing device adopts the rechargeable power supply, the power supply and the phase recognition circuit board are respectively arranged in the shell, and the counting screen is embedded on the shell, so that the testing device is simple and compact in structure, the overall size of the testing device is reduced, the testing device is small and exquisite in size and convenient to use, and can be flexibly moved and used at any station of a production line.
Drawings
FIG. 1 is a cross-sectional view of an earphone speaker phase testing apparatus according to the present invention;
FIG. 2 is a top view of the earphone speaker phase testing apparatus of the present invention;
fig. 3 is a schematic diagram of the earphone speaker phase testing apparatus according to the present invention.
As shown in the attached drawings: 100. a housing; 200. a power source; 300. a phase recognition circuit board; 310. a signal generator; 320. a microphone; 330. an MIC amplifier; 340. a comparator; 350. a buzzer; 400. a counting screen; 500. a test well; 600. a control button; 1000. an earphone speaker.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and 2, a phase testing device for an earphone speaker includes a housing 100, a power supply 200 and a phase recognition circuit board 300, wherein the power supply 200 and the phase recognition circuit board 300 are respectively disposed in the housing 100, the power supply 200 supplies power to the phase recognition circuit board 300, a counting screen 400 is embedded on the surface of the housing 100 and is connected to the phase recognition circuit board 300, a testing hole 500 for placing the earphone speaker 1000 and a control button 600 are respectively disposed on the housing 100, and the control button 600 is connected to the phase recognition circuit board 300.
Specifically, the phase testing device in this embodiment is mainly composed of a housing 100, a power supply 200, a phase recognition circuit board 300 and a counting screen 400, the components are few, the structure is simple, and in order to reduce the overall volume of the testing device, the power supply 200 and the phase recognition circuit board 300 are respectively arranged inside the casing 100, and the power supply 200 adopts a rechargeable power supply, so that the power supply 200 can be conveniently charged, meanwhile, the counting screen 400 is embedded on the housing 100 and electrically connected to the phase recognition circuit board 300, thereby the structure of the testing device is compact and the volume is small, the power supply 400 can supply power to the phase recognition circuit board 300, finally, the phase testing device can be flexibly moved and used at any station of the production line, and the qualified and unqualified products can be counted through the counting screen 400, so that data can be counted conveniently for management.
Referring to fig. 3, the phase recognition circuit board 300 includes a signal generator 310, a microphone 320, a MIC amplifier 330 and a comparator 340, wherein an output terminal of the signal generator 310 is connected to the comparator 340 and an input terminal of the earphone speaker 1000 under test, an output terminal of the microphone 320 is connected to an input terminal of the comparator 340 through the MIC amplifier 330, a position of the microphone 320 corresponds to a position of the test hole 500, and an output terminal of the comparator 340 is connected to an input terminal of the counter 400.
In this embodiment, when testing the phase of the earphone speaker, the specific operation is to place the tested earphone speaker 1000 in the testing hole 500 at the top of the casing 100, and connect with the signal generator 310, where the type of the signal generator 310 is: SSF-16C, then turn on the control button 600 on the housing 100, make the signal generator 310 send out a signal, and transmit to the tested earphone speaker 1000, thereby make the earphone speaker 1000 send out a sound, and because the position that the microphone 320 set up is corresponding to the test hole 500, it is convenient to gather the sound, so the microphone 320 can gather the sound that the earphone speaker 1000 sent, and transmit it to the MIC amplifier 330, the MIC amplifier 330 model is: NE5532, and MIC amplifier 330 in turn transmits a signal into comparator 340, comparator 340 being of the type: LM 324; meanwhile, when the signal generator 310 sends out a signal, the other output end transmits the signal to the comparator 340, at this time, the comparator 340 compares the phase of the signal transmitted by the signal generator 310 with the phase of the signal sent by the tested loudspeaker 1000, if the phase of the signal sent by the tested loudspeaker 1000 is reversed, a subtraction relation is formed in the comparator 340 with the signal transmitted by the signal generator 310, at this time, the voltage value of the comparator 340 is reduced, and the reduced signal is judged as the reversed phase of the tested loudspeaker 1000, and at the same time, the signal is transmitted to the counting screen 400, and the counting screen 400 has the model number of: GyR-0452 can export a pulse on count screen 400 to this increases a count, finally, realizes the detection to earphone loudspeaker phase place, and testing process is simple, and the testing result is accurate, and accessible count screen 400 makes statistics of the certified products or the defective work of test, conveniently manages.
Referring to fig. 3, in this embodiment, in order to facilitate the identification detection of the operator, the phase identification circuit board 300 further includes a buzzer 350, and an input end of the buzzer 350 is connected to an output end of the comparator 340, when it is detected that the phases of the tested earphone speakers 1000 are opposite, the comparator 340 transmits a signal to the counter 400 and simultaneously transmits the signal to the buzzer 350, where the type of the buzzer 350 is: XXQ-02C, and the audible alarm 350 will send out an alarm prompt tone for reminding the operator, so that the operator can easily identify and detect.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. The present invention may be readily implemented by those skilled in the art as illustrated in the accompanying drawings and described above; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the utility model as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.

Claims (4)

1. The utility model provides an earphone loudspeaker phase place testing arrangement which characterized in that: including casing, power and phase place discernment circuit board set up respectively in the casing, and the power supplies power to phase place discernment circuit board, casing surface inlays and has the count screen to be connected with phase place discernment circuit board, still be provided with respectively on the casing and be used for carrying out the test hole placed to earphone loudspeaker, and control button, just control button is connected with phase place discernment circuit board.
2. The earphone horn phase testing device of claim 1, wherein: phase place discernment circuit board includes signal sound production ware, microphone, MIC amplifier and comparator, the output of signal sound production ware is connected with the input of comparator and surveyed earphone loudspeaker respectively, the output of microphone is then connected through the input of MIC amplifier with the comparator, and the microphone position corresponds with the test hole position, the output of comparator is then connected with the input of count screen.
3. The earphone horn phase testing device of claim 2, wherein: the phase identification circuit board further comprises a buzzer, and the input end of the buzzer is connected with the output end of the comparator.
4. The earphone horn phase testing device of claim 1, wherein: the power supply is a rechargeable power supply.
CN202122039295.1U 2021-08-27 2021-08-27 Earphone loudspeaker phase testing arrangement Active CN215453278U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122039295.1U CN215453278U (en) 2021-08-27 2021-08-27 Earphone loudspeaker phase testing arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122039295.1U CN215453278U (en) 2021-08-27 2021-08-27 Earphone loudspeaker phase testing arrangement

Publications (1)

Publication Number Publication Date
CN215453278U true CN215453278U (en) 2022-01-07

Family

ID=79696649

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122039295.1U Active CN215453278U (en) 2021-08-27 2021-08-27 Earphone loudspeaker phase testing arrangement

Country Status (1)

Country Link
CN (1) CN215453278U (en)

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