CN111818437B

CN111818437B - Headset acoustic testing device

Info

Publication number: CN111818437B
Application number: CN201910293042.1A
Authority: CN
Inventors: 梁青青; 黄垣晟; 吴星佑
Original assignee: Meilv Electronics Huizhou Co Ltd
Current assignee: Meilv Electronics Huizhou Co Ltd
Priority date: 2019-04-12
Filing date: 2019-04-12
Publication date: 2025-11-07
Anticipated expiration: 2039-04-12
Also published as: CN111818437A

Abstract

The application discloses an acoustic testing device for a headset, which comprises a headset support frame, two earmuff fixing blocks, two sealing pieces and two radios, wherein the headset support frame is provided with two earmuff connecting parts which are symmetrically arranged, the two earmuff fixing blocks are respectively arranged on the two earmuff connecting parts, the surface of each earmuff fixing block, which is far away from the earmuff connecting parts, is provided with an earmuff accommodating groove, the bottom of each earmuff accommodating groove is provided with a perforation, the two sealing pieces are respectively arranged in the corresponding earmuff accommodating groove, the two radios are respectively arranged in the corresponding perforation, the radio end of each radio faces the corresponding earmuff accommodating groove, two earmuff structures of the headset are respectively arranged in the corresponding earmuff accommodating grooves, a cavity is formed between each earmuff structure and the corresponding earmuff accommodating groove, and the gaps between the earmuff structures and the side walls of the earmuff accommodating grooves are filled with the sealing pieces so as to seal the cavity. The application can effectively prevent external noise from entering without arranging the sound-eliminating box.

Description

Headset acoustic testing device

Technical Field

The application relates to the technical field of headphone testing, in particular to an acoustic headphone testing device.

Background

Consumer electronic products are gradually popularized at present, so that the consumer electronic products bring more convenience to life and increase living fun. Headphones become an indispensable outfit for consumer electronics, and enjoy high-quality music through the headphones, increasing the listening experience. Before leaving the factory, the headphones need to be subjected to acoustic testing to confirm that the headphones meet factory specifications. The current acoustic testing device is to place an acoustic tester in a sound-deadening box for testing, and the sound-deadening box is mainly used for isolating external noise from entering, so that the acoustic tester is prevented from being interfered with the test. However, the sound-reducing box is opaque, so that a user cannot confirm whether the earphone is correctly disposed on the acoustic tester during the test, resulting in low accuracy of the test result of the acoustic tester.

Disclosure of Invention

The embodiment of the application provides an acoustic testing device for a headphone, which solves the problem that the existing acoustic testing device blocks external noise through a silencer, but is shielded by the silencer in the testing process, so that whether the position of an earmuff structure of the headphone on the acoustic testing device is correct or not can not be confirmed.

In order to solve the technical problems, the application is realized as follows:

The invention provides an acoustic testing device for a headset, which comprises a headset supporting frame, two earmuff connecting parts, two earmuff fixing blocks, two sealing pieces and two radio receivers, wherein the two earmuff connecting parts are symmetrically arranged, the two earmuff fixing blocks are respectively arranged in the two earmuff connecting parts, an earmuff accommodating groove is formed in the surface of each earmuff fixing block far away from the earmuff connecting parts, a perforation is formed in the bottom of each earmuff accommodating groove, the two sealing pieces are respectively arranged in the corresponding earmuff accommodating grooves, the two radio receivers are respectively arranged in the corresponding perforation, the radio receiving end of each radio receiver faces the corresponding earmuff accommodating groove, two earmuff structures of the headset are respectively arranged in the corresponding earmuff accommodating grooves, a cavity is formed between each earmuff structure and the corresponding earmuff accommodating groove, and a gap between each sealing piece and the side wall of the earmuff accommodating groove is filled with the corresponding earmuff structure so as to seal the cavity.

In the embodiment of the application, the gap between the earmuff structure and the side wall of the earmuff accommodating groove is filled with the sealing piece, so that the tightness of a cavity formed between the earmuff structure and the earmuff accommodating groove is improved, and further, external noise is effectively prevented from entering the cavity formed between the earmuff structure and the earmuff accommodating groove, the arrangement of the sound-eliminating box can be omitted, the position of the earmuff structure arranged in the earmuff accommodating groove can be confirmed by observing through human eyes in the test process, and the accuracy of acoustic test is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

FIG. 1 is a perspective view of a headphone acoustic testing apparatus according to a first embodiment of the present application;

FIG. 2 is a cross-sectional view of a headphone acoustic testing apparatus according to a first embodiment of the present application;

FIG. 3 is a state diagram of the use of the headphone acoustic testing apparatus of the first embodiment of the present application;

FIG. 4 is another state diagram of the use of the headphone acoustic testing apparatus of the first embodiment of the present application;

Fig. 5 is a perspective view of a headphone acoustic testing apparatus according to a second embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Referring to fig. 1 and 2, which are perspective and sectional views of a headphone acoustic testing apparatus according to a first embodiment of the present application, as shown in the drawings, the headphone acoustic testing apparatus 1 of the present embodiment includes a headphone support frame 10, two earmuff fixing blocks 11, two sealing members 12, and two radios 13. The earphone support frame 10 has two earmuff coupling parts 101 symmetrically arranged. Two earmuff fixing blocks 11 are respectively connected with the corresponding earmuff connecting parts 101, and the surface of each earmuff fixing block 11, which is far away from the earphone support frame 10, is provided with an earmuff accommodating groove 111. Each seal 12 is disposed within the earmuff receiving groove 111 and along the side walls of the earmuff receiving groove 111. The bottom of each ear cup accommodation groove 111 is provided with a perforation 112, and two sound receivers 13 are respectively arranged in the corresponding perforation 112, and the sound receiving ends face the ear cup accommodation grooves 111.

Referring to fig. 3 and 4, which are views illustrating the usage states of the headphone acoustic testing device according to the first embodiment of the present application, when the headphone acoustic testing device 1 according to the present embodiment is in use, as shown in the drawings, two ear cup structures 21 of the headphone 2 are respectively disposed in the corresponding ear cup accommodating grooves 111, and the foam portion of each ear cup structure 21 is abutted against the surface of the bottom of the ear cup accommodating groove 111, so that a cavity 113 is formed between the ear cup structure 21 and the ear cup accommodating groove 111, and the sound receiving end of the sound receiver 13 is located in the cavity 113, i.e. the through hole 112 is located in the cavity 113. The sealing member 12 fills the gap between the ear cap structure 21 and the side wall of the ear cap accommodating groove 111, and presses the ear cap structure 21 in the ear cap accommodating groove 111, so as to improve the tightness of the cavity 113, prevent external noise from entering the cavity 113 to affect the test result, omit the arrangement of the sound-reducing box, and allow a tester to observe whether the ear cap structure 21 is correctly arranged in the ear cap accommodating groove 111 by using eyes. In the testing process, the two ear muff structures 21 play sound into the corresponding cavities 113, the two radios 13 record sound in the corresponding cavities 113, and finally, whether the acoustic characteristics of the headset 2 meet the factory specifications is judged according to the sound recorded by the two radios 13.

Preferably, the surface of the earmuff fixing block 11 facing the earphone support frame 10 of the present embodiment is further provided with a positioning protrusion 114, and the perforation 112 penetrates the positioning protrusion 114. The ear cup connection portion 101 further has a slot 1011, the opening of which is located on the surface of the ear cup connection portion 101 facing the ear cup fixing block 11, and the extending direction of the slot 1011 is parallel to the center line of the two ear cup connection portions 101, i.e., extends into the earphone support frame 10. The central axes of the two slots 1011 are located on the same line, and when the ear muff fixing block 11 is connected with the corresponding ear muff connecting part 101, the positioning convex part 114 is arranged in the slot 1011, and the through hole 112 of the ear muff fixing block 11 is communicated with the space in the slot 1011, so as to ensure that the two ear muff fixing blocks 11 can be symmetrically arranged. In the present embodiment, the two slots 1011 are connected to each other, and of course, the two slots 1011 can be separately disposed.

The earphone support frame 10 has a wire-guiding portion 102, and the wire-guiding portion 102 is connected to the two slots 1011, so that the wires of the radio 13 pass through the through hole 112, the slots 1011 and the wire-guiding portion 102. In the present embodiment, the wire passing portion 102 includes two wire passing grooves 1021, one end of each wire passing groove 1021 is communicated with the corresponding slot 1011, one end of each wire passing groove 1021 extends along the direction perpendicular to the extending direction of the slot 1011 and penetrates through the earphone supporting frame 10, the wire passing groove 1021 has an accommodating opening 1022, the accommodating opening 1022 is arranged on the surface of the earmuff connecting portion 101 facing the earmuff fixing block 11, and such wire passing groove 1021 is convenient for the line arrangement of the radio 13. Of course, the wiring portion 102 may also be a wiring hole disposed in the earphone support frame 10 and connected to the two slots 1011, which is not described herein.

The size of the earmuff receiving groove 111 is larger than the size of the earmuff structure 21 of the headset 2 so that the earmuff structure 21 can fully enter the earmuff receiving groove 111. The sealing member 12 is along the side wall of the ear cup accommodating groove 111 to fill the gap between the side wall of the ear cup accommodating groove 111 and the ear cup structure 21, so that the position of the ear cup structure 21 in the ear cup accommodating groove 111 can be fixed, and the tightness of the cavity 113 formed by the ear cup structure 21 and the ear cup accommodating groove 111 can be increased, thereby ensuring the accuracy of the test result generated by the test device of the embodiment. The seal 12 is an elastic ring or fluid filled bladder that deforms in accordance with the shape of the gap between the side wall of the earmuff receiving groove 111 and the earmuff structure 21 to fill the gap between the side wall of the earmuff receiving groove 111 and the earmuff structure 21.

The sealing member 12 in this embodiment is a capsule, and the capsule may be filled with a fluid, which is filled with the fluid before being installed between the ear cup accommodating grooves 111, and the sealing member 12 is inserted between the side wall of the ear cup accommodating groove 111 and the ear cup structure 21 after the ear cup structure 21 is disposed in the ear cup accommodating groove 111. Or the sealing member 12 without filling fluid is firstly directly arranged in the earmuff accommodating groove 111 and is arranged along the side wall of the earmuff accommodating groove 111, and after the earmuff structure 21 is arranged in the earmuff accommodating groove 111, the sealing member 12 is filled with the fluid.

The sealing member 12 of the present embodiment is directly disposed in the ear cup accommodation groove 111, the sealing member 12 has a fluid inlet 121, the bottom of the ear cup accommodation groove 111 has a fluid filling hole 115, and the fluid inlet 121 of the sealing member 12 is connected to the fluid filling hole 115 of the ear cup accommodation groove 111. When the fluid is to be filled into the sealing member 12, the pump is connected to the fluid filling hole 115, and the pump inputs the fluid to the sealing member 12 through the fluid filling hole 115, so that the sealing member 12 can fill the gap between the side wall of the ear cup accommodation groove 111 and the ear cup structure 21. When the acoustic test is completed, the fluid in the seal 12 automatically flows out through the fluid filling hole 115 or the fluid inside thereof is pumped out by being connected to the fluid filling hole 115 by a pump.

Preferably, the ear cup accommodating groove 111 of the present embodiment is further divided into a first accommodating area 116 and a second accommodating area 117, the first accommodating area 116 and the second accommodating area 117 are separated by an annular spacer 118, the second accommodating area 117 surrounds the first accommodating area 116, the first accommodating area 116 is used for accommodating the ear cup structure 21, the second accommodating area 117 is used for accommodating the sealing member 12, so that the through hole 112 is located in the first accommodating area 116, and the fluid filling hole 115 is located in the second accommodating area 117, so that the ear cup structure 21 is conveniently arranged in the ear cup accommodating groove 111.

The top of the earphone supporting frame 10 of the present embodiment further has a headset supporting portion 103, when the two ear muff structures 21 of the headset 2 are respectively disposed in the corresponding ear muff accommodating grooves 111, the headset supporting frame 22 of the headset 2 can be disposed on the headset supporting portion 103, and the headset supporting portion 103 supports the headset supporting frame 22, so as to avoid the headset supporting frame 22 from shaking during the testing process to affect the disposition relationship between the ear muff structures 21 and the ear muff accommodating grooves 111. The support portion 103 of the headset bracket of the present embodiment has a support block 1031, the support block 1031 is movably connected with the headset bracket 10, and the support block 1031 can be far away from or close to the headset bracket 10, so as to adjust the height of the support block 1031, ensure that the support block 1031 can be abutted against the inner surface of the headset bracket 22, and avoid the headset bracket 22 from shaking during the testing process. The support block 1031 of the present embodiment has a support protrusion 1032 on a surface thereof away from the earphone support frame 10, and the end points of the support protrusion 1032 and the two end edges of the support block 1031 near the earmuff fixing block 11 are in contact with the inner surface of the head mount 22 to support the head mount 22 on the earphone support frame 10. The line connecting the end points of the supporting protrusions 1032 and the centers of the supporting blocks 1031 near the two end edges of the earmuff fixing block 11 is an arc, and the arc is in accordance with the arc of the head-wearing bracket 22, so as to ensure that the end points of the supporting protrusions 1032 and the two end edges of the supporting blocks 1031 near the earmuff fixing block 11 can contact with the inner surface of the head-wearing bracket 22. The supporting protrusions 1032 are movably connected with the supporting block 1031, i.e., the supporting protrusions 1032 are movable away from or closer to the supporting block 1031 to adjust the protruding height of the supporting protrusions 1032 from the supporting block 1031.

In another embodiment, the earphone support frame 10 may be directly disposed on the surface of the support block 1031 without disposing the support protrusion 1032. The surface of the support block 1031 far away from the earphone support frame 10 may be an arc surface, the arc of the arc surface is consistent with the arc of the head-wearing support 22, the contact area between the head-wearing support 22 and the support block 1031 is increased, and the stability of the head-wearing support 22 on the support block 1031 is improved.

The headphone acoustic testing device 1 of the present embodiment further includes a microphone support 14, where the microphone support 14 is disposed on one side of the headphone support 10, and the microphone support 14 is a microphone support 23 for supporting the headphone 2 during testing, so as to avoid the microphone support 23 from hanging down to affect the position of the ear cup structure 21 disposed in the ear cup accommodating groove 111. The position of the microphone boom 14 can be adjusted based on the microphone boom 23. The headset acoustic testing device 1 of the present embodiment further includes a microphone receiver 15, the microphone receiver 15 is disposed on one side of the microphone support 14, when the microphone support 23 of the headset 2 is disposed on the microphone support 23, the microphone receiver 15 corresponds to the sound outlet end of the microphone support 23 to record the sound propagated by the microphone of the headset 2, and determine whether the microphone of the headset 2 is normal according to the microphone sound recorded by the microphone receiver 15. In this embodiment, the sounds recorded by the sound receiver 13 and the microphone sound receiver 15 are transmitted to an external processor, and the processor determines whether the headphone 2 meets the factory specification according to the sounds recorded by the sound receiver 13 and the microphone sound receiver 15. If the microphone stand 23 is not provided on the headset 2, the headset acoustic testing device 1 can omit the microphone stand 14 and the microphone receiver 15.

Referring to fig. 5, which is a perspective view of a headphone acoustic testing apparatus according to a second embodiment of the present application, as shown in the drawings, the headphone acoustic testing apparatus 1 of the present embodiment is different from the headphone acoustic testing apparatus of the above embodiment in that the headphone acoustic testing apparatus 1 of the present embodiment further includes a sound-deadening box 16, the sound-deadening box 16 of the present embodiment accommodates a headphone support frame 10, two ear-cup fixing blocks 11, two sealing members 12, two radios 13, a microphone support frame 14 and a microphone radio 15, and the sound-deadening box 16 of the present embodiment mainly prevents external noise from affecting the sound-receiving effect of the microphone radio 15. If the microphone of the headphone is not to be tested for normal, the sound-eliminating box 16 may be omitted. In the headphone acoustic testing device 1 of this embodiment, during testing, the sealing member 12 can block external noise from entering the cavity between the ear muff structure and the ear muff accommodating groove, and of course, the arrangement of the sound-reducing box 16 can more effectively block external noise from entering.

In summary, the application provides an acoustic testing device for a headphone, in which a gap between an ear muff structure and a side wall of an ear muff accommodating groove is filled with a sealing member, so as to improve the tightness of a cavity formed between the ear muff structure and the ear muff accommodating groove, and further effectively prevent external noise from entering the cavity formed between the ear muff structure and the ear muff accommodating groove, so that the arrangement of a sound eliminating box can be omitted, the position of the ear muff structure in the ear muff accommodating groove can be confirmed by human eyes during testing, and the accuracy of acoustic testing is improved.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. An acoustic headphone testing device, comprising:

the earphone support frame is provided with two earmuff connecting parts which are symmetrically arranged;

The two earmuff fixing blocks are respectively arranged at the two earmuff connecting parts, the surface of each earmuff fixing block far away from the earmuff connecting parts is provided with an earmuff accommodating groove, and the bottom of each earmuff accommodating groove is provided with a perforation;

the two sealing pieces are respectively arranged in the corresponding earmuff accommodating grooves and along the side walls of the earmuff accommodating grooves;

the two radio receivers are respectively arranged in the corresponding through holes, and the radio receiving end of each radio receiver faces the corresponding earmuff accommodating groove;

the two ear muff structures of the headset are respectively arranged in the corresponding ear muff accommodating grooves, a cavity is formed between each ear muff structure and the corresponding ear muff accommodating groove, each sealing piece fills up a gap between the ear muff structure and the side wall of the ear muff accommodating groove and presses the ear muff structure in the ear muff accommodating groove so as to seal the cavity, and a tester can observe whether the ear muff structure is correctly arranged in the ear muff accommodating groove;

The sealing piece is an elastic body or a bag body containing fluid, the sealing piece is the bag body containing the fluid, the bag body is arranged in the earmuff accommodating groove and along the side wall of the earmuff accommodating groove, the bag body is provided with a fluid inlet, the bottom of the earmuff accommodating groove is provided with a fluid filling hole, and the fluid inlet is connected with the fluid filling hole;

The earmuff accommodating groove is provided with a first accommodating area and a second accommodating area, the first accommodating area and the second accommodating area are separated by an annular spacer, the second accommodating area surrounds the first accommodating area, the second accommodating area accommodates the sealing element, the perforation is positioned in the first accommodating area, and the fluid filling hole is positioned in the second accommodating area.

2. The headphone acoustic testing device according to claim 1, wherein each of the earmuff-attachment blocks further has a positioning protrusion on a surface thereof facing the earmuff-attachment portion, each of the earmuff-attachment portions has a slot, an opening of the slot is located on a surface of the earmuff-attachment portion facing the earmuff-attachment block, and the positioning protrusion is disposed in the corresponding slot.

3. The headphone acoustic testing device according to claim 2, wherein the headphone support frame has a wire-running portion, the wire-running portion is in communication with two of the slots, and the wire of the radio passes out of the wire-running portion.

4. The headphone acoustic testing device according to claim 1, wherein the top of the headphone support frame further has a headphone support bracket including a support block disposed on the top surface of the headphone support frame.

5. The headphone acoustic testing device according to claim 4 wherein the support block is movably coupled to the headphone support frame and is either remote or proximal relative to the headphone support frame.

6. The headphone acoustic testing device according to claim 4, wherein the headphone support leg support section further has a support convex portion provided on a surface of the support block remote from the headphone support frame.

7. The headphone acoustic testing apparatus of claim 6, wherein the support protrusion is movably connected to the support block, the support protrusion being spaced apart from or adjacent to the support block, and adjusting a height of the support protrusion protruding from the support block.

8. The headphone acoustic testing apparatus of claim 1, further comprising a microphone support frame disposed on one side of the headphone support frame.

9. The headphone acoustic testing device of claim 8, further comprising a microphone receiver disposed on a side of the microphone support frame.

10. The headphone acoustic testing apparatus of claim 9 further comprising a sound-deadening box housing the headphone support, two of the earmuff mounting blocks, two of the seals, two of the radios, the microphone support and the microphone radio.