CN214901311U

CN214901311U - High-leakage artificial ear coupling cavity for micro-slit loudspeaker and test system

Info

Publication number: CN214901311U
Application number: CN202121411419.8U
Authority: CN
Inventors: 崔万营
Original assignee: Dongguan Ruisen New Spectrum Acoustic Technology Co ltd
Current assignee: Dongguan Ruisen New Spectrum Acoustic Technology Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-11-26
Anticipated expiration: 2031-06-24

Abstract

The utility model relates to a artifical ear coupling chamber of high leakage and test system for slit speaker, include: coupling chamber and sealed lid, coupling chamber include high leakage ring, operation panel, annular wall, and the operation panel is equipped with the sound chamber and leaks the hole, and high leakage ring is located a surface of operation panel, and high leakage ring covers the sound chamber and leaks the hole, and the annular wall is located another surface that the operation panel is relative, and the annular wall only covers the sound chamber, and sealed lid edge and high leakage ring sealing connection, sealed lid are equipped with the trompil, and the trompil sets up in the position that leaks the hole and correspond. The utility model discloses the sealed lid of rubber material and the setting up of trompil make speaker and people's ear coupling chamber can be better sealed, guarantee that the test does not leak the sound to the situation of simulation slit speaker and people's ear coupling, with the acoustic performance of measuring the slit speaker of products such as cell-phone, flat board, guarantee that the test result is more accurate.

Description

High-leakage artificial ear coupling cavity for micro-slit loudspeaker and test system

Technical Field

The utility model relates to an acoustic performance test fixture field especially relates to an artifical ear coupling chamber of high leakage for slit speaker.

Background

The loudspeaker can change the signal of telecommunication into the acoustic signal, propagate the built-in sound of electronic equipment such as cell-phone, flat board, be a very important part in electronic equipment such as cell-phone, flat board, the rated power of loudspeaker, the performance such as rated impedance, frequency characteristic, harmonic distortion, sensitivity, directive property directly influences the quality of tone quality, the sound that inferior quality or speaker that has the quality problem broadcast is unstable, it is fuzzy occasionally, the distortion occasionally, can listen to make people's ear tired even occasionally, and the sound that superior quality or speaker that does not have the quality problem broadcast is clear, soft and mellow, have level and third dimension, let people's ear feel very comfortable. In order to ensure the functions of the speaker and the sound quality of the played sound, the acoustic performance of the speaker needs to be detected before the electronic equipment such as a mobile phone and a flat panel is put on the market to detect whether the performance meets the requirements.

Generally, an artificial ear coupling cavity is adopted to simulate the situation of coupling of a loudspeaker and a loudspeaker with human ears to carry out acoustic test on the loudspeaker and the loudspeaker, the artificial ear coupling cavity is divided into a high leakage ring and a low leakage ring according to the leakage amount of sound when the simulated loudspeaker and the loudspeaker are placed on the ears, if the artificial ear coupling cavity is tightly buckled on the ears, the artificial ear coupling cavity is low in leakage, if the artificial ear coupling cavity is loose, the artificial ear coupling cavity is high in leakage, when people use electronic equipment such as a mobile phone and a flat panel, the artificial ear coupling cavity is often placed near the ears, namely, the high leakage situation of the loudspeaker is often used, and therefore the acoustic performance test of the loudspeaker and the loudspeaker is also often carried out by utilizing the high leakage artificial ear coupling cavity to test the acoustic performance under the situation of high leakage of the loudspeaker.

When the acoustic performance test is carried out, the coupling cavity is required to be in sealed contact with the loudspeaker or the loudspeaker to ensure that the test does not leak sound, the conventional common artificial ear coupling cavity is circular, the loudspeaker of electronic equipment such as a mobile phone, a flat panel and the like is usually in a micro-slit form at the edge of the equipment, excessive planes do not exist around the loudspeaker, and the circular coupling cavity cannot achieve the sealing effect with the loudspeaker, so that the conventional common artificial ear coupling cavity can only be used for testing the loudspeaker or the open circular loudspeaker or loudspeaker with enough plane space around the loudspeaker and cannot be used for testing the micro-slit loudspeaker of products such as the mobile phone, the flat panel and the like.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a high artifical ear coupling chamber of leaking for slit speaker aims at solving the technical problem who exists among the prior art.

The utility model adopts the following technical proposal: a high leakage artificial ear coupling cavity for a micro-slit loudspeaker, comprising:

the coupling cavity comprises a high-leakage ring, an operating platform and an annular wall, wherein the operating platform is provided with a sound cavity and a leakage hole which are communicated, the high-leakage ring is positioned on one surface of the operating platform and covers the sound cavity and the leakage hole, the annular wall is positioned on the other surface opposite to the operating platform, and the annular wall only covers the sound cavity;

the sealed lid, sealed edge of covering and high leakage ring sealing connection, the plane of sealed lid is equipped with the trompil, and the trompil sets up in the position that leaks the hole correspondence.

Preferably, the high-leakage ring, the operating platform and the annular wall are fixedly connected.

Preferably, the diameter of the acoustic cavity is larger than the diameter of the leakage hole.

Preferably, the opening is semicircular.

As preferred technical scheme, the annular wall is equipped with the reinforcement apart from one side of leaking the hole, and the reinforcement is connected with operation panel fixed connection.

Preferably, the sealing cover is made of rubber.

As the preferred technical scheme, the leakage hole device further comprises a mounting cantilever, and the mounting cantilever is fixedly connected with one side face, close to the leakage hole, of the operating platform.

As the preferred technical scheme, the installation cantilever is fixedly connected with the operating platform through bolts.

As preferred technical scheme, the fixed one end of operation panel and installation cantilever is equipped with the locating pin, and the locating pin can be inserted in the constant head tank, and the locating pin is used for fixing a position the installation cantilever when assembling.

As preferred technical scheme, the installation cantilever is equipped with and is no less than one mounting hole, and the mounting hole is used for installing the installation cantilever on the mounting.

The utility model also provides a high artifical ear coupling chamber test system that leaks for slit speaker, including above-mentioned high artifical ear coupling chamber that leaks, still include acoustics test equipment, acoustics test equipment with annular wall seal installation.

The utility model discloses a technical scheme can reach following beneficial effect: the utility model provides a high artifical ear coupling chamber of leaking and test system for slit speaker can simulate the situation of slit speaker and human ear coupling, gather the cell-phone, the sound data that spread of slit speaker of products such as flat board, and can export this sound data to corresponding acoustics test equipment, thereby measure the cell-phone, the acoustics performance of slit speaker of products such as flat board, and can also be more convenient realization through pushing down artifical ear coupling chamber, make artifical ear coupling chamber and the speaker of the product that awaits measuring seal up the test, it is more convenient to make the test.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below to form a part of the present invention, and the exemplary embodiments and the description of the present invention illustrate the present invention and do not limit the present invention. In the drawings:

FIG. 1 is a perspective view of a sealing cap according to embodiments 1-2;

FIG. 2 is a perspective view of the coupling cavity of the present embodiment 1-2;

FIG. 3 is a perspective view of the present embodiment 1-2;

FIG. 4 is a perspective view of the present embodiment 1-2;

fig. 5 is a perspective view of the mounting arm of embodiment 2.

Description of reference numerals:

coupling chamber 1, sealed lid 2, installation cantilever 3, reinforcement 4, high leakage ring 11, operation panel 12, annular wall 13, locating pin 14, trompil 21, constant head tank 31, mounting hole 32, acoustic cavity 121, leakage hole 122.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solutions of the present invention. In the description of the present invention, it is noted that the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise.

Example 1

The embodiment provides a high-leakage artificial ear coupling cavity for a micro-slit loudspeaker, which comprises a coupling cavity 1 and a sealing cover 2 as shown in figures 1-2, wherein the coupling cavity 1 comprises a high-leakage ring 11, an operating platform 12 and an annular wall 13 as shown in figures 4-5, the high-leakage ring 11, the operating platform 12 and the annular wall 13 are fixedly connected in a welding manner, a clamping manner and an integral connection manner, preferably the integral connection manner is adopted, the integral connection manner can enable the sealing performance to be more superior, and sound leakage during testing of acoustic performance can be better guaranteed.

According to fig. 5, the operation table 12 is provided with a sound cavity 121 and a leakage hole 122 which are through, the diameter of the sound cavity 121 is larger than that of the leakage hole 122, the high leakage ring 11 is located on one surface of the operation table 12, the high leakage ring 11 covers the sound cavity 121 and the leakage hole 122, the annular wall 13 is located on the other surface opposite to the operation table 12, the annular wall 13 only covers the sound cavity 121, the annular wall 13 is used for connecting a loudspeaker acoustic performance testing device, one side of the annular wall away from the leakage hole is provided with a reinforcement 4, the reinforcement 4 is fixedly connected with the operation table, the connection mode can be welding, clamping, integral connection, preferably integral connection, and the annular wall 13 and the operation table 12 are reinforced firmly, the connection between the acoustic performance testing equipment and the high-leakage artificial ear coupling cavity can be more stable, and the acoustic performance testing equipment is prevented from suddenly loosening from the annular wall 13 in the test.

According to fig. 1 and 4, the edge of the sealing cover 2 is connected with the high leakage ring 11 in a sealing manner, the plane of the sealing cover 2 is provided with an opening 21, the opening 21 is arranged at a position corresponding to the leakage hole 122, because the mobile phone and flat micro-slit loudspeaker is usually arranged at the top end of the mobile phone screen or at the side edge of the mobile phone, no plane is arranged around the mobile phone and flat micro-slit loudspeaker, or the plane around the mobile phone and flat micro-slit loudspeaker is very small, the circular opening 21 cannot be circular, can be semicircular, can also be rectangular, and is preferably semicircular, for example, when testing the micro-slit loudspeaker at the top end of the mobile phone screen, the semicircular opening is sealed without planes around the loudspeaker, only one non-arc side is aligned with the outer edge of the loudspeaker, one arc side is aligned with the mobile phone screen to realize sealing, the sealing cover 2 is preferably made of rubber, and because the rubber is soft, and has certain elasticity, can be out of shape after the pressurized, produce contact pressure simultaneously to block the leakage path, realize sealedly, so sealed lid 2 adopts the rubber material can make speaker and coupling chamber 1 form sealed environment more easily, has ensured the leakproofness.

The high-leakage artificial ear coupling cavity for the micro-slit loudspeaker can simulate the coupling situation of the micro-slit loudspeaker and the human ear, collect the sound data transmitted by the micro-slit loudspeaker of products such as mobile phones and panels, and output the sound data to corresponding acoustic test equipment, thereby measuring the acoustic performance of the micro-slit loudspeaker of the products such as mobile phones and panels, and the sealing cover made of rubber and the arrangement of the opening make the loudspeaker and the sound cavity better sealed, thereby ensuring the accuracy and reliability of the test result.

Example 2

The embodiment provides a high-leakage artificial ear coupling cavity test system for a micro-slit loudspeaker, as shown in fig. 4-5, on the basis of embodiment 1, the high-leakage artificial ear coupling cavity further comprises an installation cantilever 3 and an acoustic test device, the acoustic test device is hermetically mounted on the annular wall 13, the installation cantilever 3 is fixedly connected with one side surface of the operation table 12 close to the leakage hole 122, preferably, the bolt is fixedly connected, the bolt connection is more convenient to detach, the installation cantilever 3 is provided with at least one installation hole 32, the installation hole 32 is used for installing the installation cantilever 3 on a fixing part of a pressing cylinder or a manipulator, and the movement of the installation cantilever 3 can be controlled by operating the fixing part of the pressing cylinder or the manipulator.

According to the illustration in fig. 2-4, the positioning pin 14 is further disposed on a side surface of the console 12 where the mounting cantilever 3 is fixed, the positioning pin 14 can be inserted into the positioning groove 31, and the positioning pin 14 is used for positioning the mounting cantilever 3 during assembly, so that the console 12 and the mounting cantilever 3 are conveniently fixed in position during assembly, and the mounting of the mounting cantilever 3 and the console 12 is more accurate and convenient.

Embodiment 1 has been increased installation cantilever 3 in this embodiment, and installation cantilever 3 is connected on motor-driven mounting, and the artificial ear coupling chamber of the motor-driven control height leakage that can be through the installation cantilever 3 be connected with the mounting is sealed with the speaker of the product that awaits measuring, carries out the test of speaker acoustic performance, and this mode also conveniently realizes moreover: put the article to be tested flat or put in the support plate, through pushing down artifical ear coupling chamber, make artifical ear coupling chamber and the speaker of the product that awaits measuring sealed, need not to remove the product that awaits measuring, only need remove artifical ear coupling chamber, make sealed operation mode convenient more firm like this, the test result is more accurate.

The utility model discloses a technical scheme can reach following beneficial effect: the utility model provides a high artifical ear coupling chamber of leaking and test system for slit speaker, can simulate the situation of slit speaker and human ear coupling, thereby measure the cell-phone, the acoustic performance of the slit speaker of products such as flat board, and the sealed lid of rubber material and the setting up of trompil make speaker and sound chamber can be better sealed, guarantee the test not leak the sound, and install cantilever 3's setting, more convenient realization through pushing down artifical ear coupling chamber, make artifical ear coupling chamber and the speaker of the product that awaits measuring seal, thereby need not to remove the product that awaits measuring, only need remove artifical ear coupling chamber, make sealed operation mode convenient more firm, the test result is more accurate.

The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention.

Claims

1. A high leakage artificial ear coupling cavity for a micro-slit loudspeaker, comprising:

the coupling cavity comprises a high-leakage ring, an operating platform and an annular wall, wherein the operating platform is provided with a sound cavity and a leakage hole which are communicated, the high-leakage ring is positioned on one surface of the operating platform, the high-leakage ring covers the sound cavity and the leakage hole, the annular wall is positioned on the other surface opposite to the operating platform, and the annular wall only covers the sound cavity in a surrounding manner;

the sealing cover is connected with the high leakage ring in a sealing mode, and is provided with an opening which is arranged at the position corresponding to the leakage hole.

2. The high-leakage artificial ear coupling cavity according to claim 1, characterized in that the high-leakage ring, the console and the annular wall are fixedly connected.

3. The high leakage artificial ear coupling cavity according to claim 1, wherein the diameter of the acoustic cavity is larger than the diameter of the leakage hole.

4. The high leakage artificial ear coupling cavity according to claim 3, wherein the opening is semi-circular.

5. The high-leakage artificial ear coupling cavity according to claim 3, characterized in that a reinforcement is provided on the side of the annular wall remote from the leakage hole, and the reinforcement is fixedly connected with the console.

6. The high leak artificial ear coupling cavity according to any of claims 1-5, characterized in that the sealing cover is made of rubber.

7. The high-leakage artificial ear coupling cavity according to claim 6, further comprising a mounting cantilever fixedly connected to a side of the console adjacent to the leakage hole.

8. The high leakage artificial ear coupling cavity according to claim 7, wherein the mounting cantilever is bolted fixedly to the console.

9. The high leakage artificial ear coupling cavity according to claim 8, wherein the end of the console to which the mounting cantilever is fixed is provided with a positioning pin, and the mounting cantilever is provided with a positioning slot into which the positioning pin can be inserted for positioning the mounting cantilever during assembly.

10. The high leakage artificial ear coupling cavity according to claim 9, wherein the mounting cantilever is provided with at least one mounting hole for mounting the mounting cantilever on the fixture.

11. A high leakage artificial ear coupling cavity test system for a micro slit loudspeaker, comprising the high leakage artificial ear coupling cavity of any of claims 7-10, and further comprising an acoustic test device, the acoustic test device being sealingly mounted to the annular wall.