Headphone acoustic test device

Abstract

The application discloses a headset acoustic testing device, which comprises a headset support frame, two ear cover fixing blocks, two sealing elements and two receivers. The headset support frame is provided with two symmetrically arranged ear cover connecting portions. The two ear cover fixing blocks are respectively arranged at the two ear cover connecting portions. Each ear cover fixing block is provided with an ear cover accommodating groove on the surface away from the ear cover connecting portion. The bottom of each ear cover accommodating groove is provided with a through hole. The two sealing elements are respectively arranged in the corresponding ear cover accommodating grooves. The two receivers are respectively arranged in the corresponding through holes. The receiving end of each receiver faces the corresponding ear cover accommodating groove. The two ear cover structures of the headset are respectively arranged in the corresponding ear cover accommodating grooves. A cavity is formed between each ear cover structure and the corresponding ear cover accommodating groove. Each sealing element fills the gap between the ear cover structure and the side wall of the ear cover accommodating groove to seal the cavity. The application can effectively prevent external noise from entering without setting an acoustic box.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of headphone testing, in particular to a headphone acoustic testing device. BACKGROUND

[0002] At present, consumer electronics products are gradually popularized, and consumer electronics products make life more convenient and increase life pleasure. Headphones become an indispensable accessory of consumer electronics products, and high-quality music is enjoyed through headphones to increase the listening experience. Before the headphones are shipped, acoustic testing is required to confirm that the headphones meet the shipping specifications. The current acoustic testing device is placed in a soundproof box for testing. The soundproof box mainly isolates external noise from entering to avoid interference with the acoustic testing device. However, the soundproof box is opaque, so the user usually cannot confirm whether the earphone is correctly set on the acoustic testing device during the testing process, resulting in low accuracy of the testing results of the acoustic testing device. SUMMARY

[0003] The embodiment of the present application provides a headphone acoustic testing device, which solves the problem that the current acoustic testing device blocks external noise through a soundproof device, but the position of the ear cover structure of the earphone on the headphone acoustic testing device cannot be confirmed during the testing process due to the shielding of the soundproof device.

[0004] In order to solve the above technical problems, the present application is implemented as follows:

[0005] A headphone acoustic testing device is provided, which comprises: an earphone support frame having two symmetrically arranged ear cover connecting portions; two ear cover fixing blocks arranged on the two ear cover connecting portions, respectively, each ear cover fixing block having an ear cover accommodating groove on the surface away from the ear cover connecting portion, and the bottom of each ear cover accommodating groove having a through hole; two sealing members arranged in the corresponding ear cover accommodating groove, respectively; and two receivers arranged in the corresponding through hole, respectively, and the receiving end of each receiver faces the corresponding ear cover accommodating groove; wherein two ear cover structures of a headphone are arranged in the corresponding ear cover accommodating groove, respectively, a cavity is formed between each ear cover structure and the corresponding ear cover accommodating groove, and each sealing member fills the gap between the ear cover structure and the side wall of the ear cover accommodating groove to seal the cavity.

[0006] In the embodiment of the present application, the gap between the ear cover structure and the side wall of the ear cover accommodating groove is filled by the sealing member to improve the sealing performance of the cavity formed between the ear cover structure and the ear cover accommodating groove, thereby effectively preventing external noise from entering the cavity formed between the ear cover structure and the ear cover accommodating groove. In this way, the setting of the soundproof box can be omitted, and the position of the ear cover structure arranged in the ear cover accommodating groove can be confirmed by the human eye during the testing process, thereby improving the accuracy of acoustic testing. BRIEF DESCRIPTION OF DRAWINGS

[0007] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

[0008] Figure 1 is a perspective view of a headset acoustic testing device according to a first embodiment of the present application;

[0009] Figure 2 is a sectional view of the headset acoustic testing device according to the first embodiment of the present application;

[0010] Figure 3 is a use state diagram of the headset acoustic testing device according to the first embodiment of the present application;

[0011] Figure 4 is another use state diagram of the headset acoustic testing device according to the first embodiment of the present application;

[0012] Figure 5 is a perspective view of a headset acoustic testing device according to a second embodiment of the present application. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0014] Please refer to Figure 1 and Figure 2 which are a perspective view and a sectional view of a headset acoustic testing device according to a first embodiment of the present application. As shown in the figures, the headset acoustic testing device 1 according to the present embodiment comprises an earphone support frame 10, two ear cover fixing blocks 11, two sealing members 12 and two receivers 13. The earphone support frame 10 has two symmetrically arranged ear cover connecting portions 101. The two ear cover fixing blocks 11 are respectively connected to the corresponding ear cover connecting portions 101, and each ear cover fixing block 11 has an ear cover accommodating groove 111 on the surface thereof away from the earphone support frame 10. Each sealing member 12 is arranged in the ear cover accommodating groove 111 and along the side wall of the ear cover accommodating groove 111. The bottom of each ear cover accommodating groove 111 has a through hole 112, and the two receivers 13 are respectively arranged in the corresponding through holes 112 with the receiving ends thereof facing the ear cover accommodating groove 111.

[0015] Please refer to Figure 3 and Figure 4This is a diagram showing the usage state of the headphone acoustic testing device according to the first embodiment of this application. As shown in the figure, when the headphone acoustic testing device 1 of this embodiment is in use, the two earcup structures 21 of the headphone 2 are respectively disposed in the corresponding earcup receiving grooves 111. The foam part of each earcup structure 21 abuts against the bottom surface of the earcup receiving groove 111, thus forming a cavity 113 between the earcup structure 21 and the earcup receiving groove 111. At the same time, the receiving end of the microphone 13 is located in the cavity 113, that is, the perforation 112 is located in the cavity 113. Next, the sealing element 12 fills the gap between the earcup structure 21 and the side wall of the earcup receiving groove 111, and presses the earcup structure 21 into the earcup receiving groove 111 to improve the sealing performance of the cavity 113, prevent external noise from entering the cavity 113 and affecting the test results, and eliminate the need for a silencer box. Simultaneously, the tester can visually observe whether the earcup structure 21 is correctly positioned within the earcup receiving groove 111. During the test, the two earcup structures 21 play sound into their corresponding cavities 113, and the two microphones 13 record the sound from their respective cavities 113. Finally, the acoustic characteristics of the headphones 2 are judged based on the sound recorded by the two microphones 13 to determine whether they meet the factory specifications.

[0016] Preferably, in this embodiment, the earcup fixing block 11 has a positioning protrusion 114 on its surface facing the headphone support frame 10, and a through hole 112 passes through the positioning protrusion 114. The earcup connecting part 101 also has a slot 1011, the opening of which is located on the surface of the earcup connecting part 101 facing the earcup fixing block 11. The extending direction of the slot 1011 is parallel to the center line connecting the two earcup connecting parts 101, that is, it extends into the headphone support frame 10. The central axes of the two slots 1011 are on the same line. When the earcup fixing block 11 is connected to the corresponding earcup connecting part 101, the positioning protrusion 114 is disposed in the slot 1011, and the through hole 112 of the earcup fixing block 11 communicates with the space inside the slot 1011 to ensure that the two earcup fixing blocks 11 can be symmetrically arranged. In this embodiment, the two slots 1011 are interconnected, but of course, the two slots 1011 can also be disposed separately.

[0017] The earphone supporting frame 10 has a wire passing portion 102, which is in communication with the two insertion slots 1011, so that the wire of the receiver 13 passes out from the through hole 112, the insertion slot 1011 and the wire passing portion 102. In the present embodiment, the wire passing portion 102 comprises two wire passing slots 1021, each of which has one end in communication with the corresponding insertion slot 1011 and has one end extending along a direction perpendicular to the extending direction of the insertion slot 1011 and penetrating through the earphone supporting frame 10, and the wire passing slot 1021 has a receiving opening 1022 formed on the surface of the ear cover connecting portion 101 facing the ear cover fixing block 11, which facilitates the arrangement of the wire of the receiver 13. Of course, the wire passing portion 102 can also be a wire passing hole arranged in the earphone supporting frame 10 and in communication with the two insertion slots 1011, which will not be described herein.

[0018] The ear cover accommodating groove 111 has a size greater than that of the ear cover structure 21 of the headphone 2, so that the ear cover structure 21 can completely enter the ear cover accommodating groove 111. The sealing member 12 is arranged along the side wall of the ear cover accommodating groove 111 to fill the gap between the side wall of the ear cover accommodating groove 111 and the ear cover structure 21, which not only fixes the position of the ear cover structure 21 in the ear cover accommodating groove 111, but also increases the sealing performance of the cavity 113 formed by the ear cover structure 21 and the ear cover accommodating groove 111, thereby ensuring the accuracy of the test results generated by the test device of the present embodiment. The sealing member 12 is an elastic ring or a fluid-filled bag, which can deform according to the shape of the gap between the side wall of the ear cover accommodating groove 111 and the ear cover structure 21 to fill the gap between the side wall of the ear cover accommodating groove 111 and the ear cover structure 21.

[0019] The sealing member 12 of the present embodiment is a bag, which can be filled with fluid. The bag can be filled with fluid before being installed in the ear cover accommodating groove 111, and then the sealing member 12 is inserted between the side wall of the ear cover accommodating groove 111 and the ear cover structure 21 after the ear cover structure 21 is arranged in the ear cover accommodating groove 111. Alternatively, the sealing member 12 without fluid is directly arranged in the ear cover accommodating groove 111 and along the side wall of the ear cover accommodating groove 111, and then the sealing member 12 is filled with fluid after the ear cover structure 21 is arranged in the ear cover accommodating groove 111.

[0020] The sealing member 12 of the present embodiment is directly arranged in the ear cover accommodating groove 111, and the sealing member 12 has a fluid inlet 121. The bottom of the ear cover accommodating groove 111 has a fluid filling hole 115, and the fluid inlet 121 of the sealing member 12 is connected with the fluid filling hole 115 of the ear cover accommodating groove 111. When fluid is to be filled into the sealing member 12, a pump is connected with the fluid filling hole 115, and the pump inputs fluid into 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 cover accommodating groove 111 and the ear cover structure 21. After the acoustic test is completed, the fluid in the sealing member 12 is automatically flowed out through the fluid filling hole 115, or the fluid in the sealing member 12 is pumped out through the connection of the pump with the fluid filling hole 115.

[0021] Preferably, the ear cover accommodating groove 111 of the present embodiment is further divided into a first accommodating area 116 and a second accommodating area 117, and the first accommodating area 116 and the second accommodating area 117 are separated by an annular partition 118. The second accommodating area 117 surrounds the first accommodating area 116. The first accommodating area 116 is used to accommodate the ear cover structure 21, and the second accommodating area 117 is used to accommodate the sealing member 12. Therefore, the perforation 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 cover structure 21 is conveniently arranged in the ear cover accommodating groove 111.

[0022] The top of the earphone support frame 10 of the present embodiment also has a head support support portion 103. When the two ear cover structures 21 of the headphone 2 are respectively arranged in the corresponding ear cover accommodating grooves 111, the head support 22 of the headphone 2 can be arranged on the head support support portion 103. The head support support portion 103 supports the head support 22, so as to avoid the head support 22 from shaking during the test process and affecting the arrangement relationship between the ear cover structure 21 and the ear cover accommodating groove 111. The head support support portion 103 of the present embodiment has a support block 1031. The support block 1031 is movably connected with the earphone support frame 10. The support block 1031 can move away from or close to the earphone support frame 10, so as to adjust the height of the support block 1031 and ensure that the support block 1031 can abut against the inner surface of the head support 22, so as to avoid the head support 22 from shaking during the test process. The surface of the support block 1031 away from the earphone support frame 10 has a support protrusion 1032. The end points of the support protrusion 1032 and the two end edges of the support block 1031 close to the ear cover fixing block 11 are in contact with the inner surface of the head support 22, so as to support the head support 22 on the earphone support frame 10. The line connecting the end points of the support protrusion 1032 and the two end edges of the support block 1031 close to the ear cover fixing block 11 is an arc. The curvature of the arc is consistent with the curvature of the head support 22, so as to ensure that the end points of the support protrusion 1032 and the two end edges of the support block 1031 close to the ear cover fixing block 11 can be in contact with the inner surface of the head support 22. The support protrusion 1032 can be movably connected with the support block 1031, that is, the support protrusion 1032 can move away from or close to the support block 1031, so as to adjust the height of the support protrusion 1032 protruding from the support block 1031.

[0023] In another embodiment, the arrangement of the support protrusion 1032 can be omitted. The earphone support frame 10 can be directly arranged on the surface of the support block 1031. The surface of the support block 1031 away from the earphone support frame 10 can be an arc surface. The curvature of the arc surface is consistent with the curvature of the head support 22, so as to increase the contact area between the head support 22 and the support block 1031 and improve the stability of the head support 22 arranged on the support block 1031.

[0024] The headset acoustic testing device 1 of the embodiment further comprises a microphone support frame 14 disposed on one side of the earphone support frame 10, which is used to support the microphone support frame 23 of the headset 2 during the testing process, so as to avoid the microphone support frame 23 from hanging down and affecting the position of the ear cover structure 21 disposed in the ear cover accommodating groove 111. The position of the microphone support frame 14 can be adjusted according to the microphone support frame 23. The headset acoustic testing device 1 of the embodiment further comprises a microphone receiver 15 disposed on one side of the microphone support frame 14. When the microphone support frame 23 of the headset 2 is disposed in the microphone support frame 23, the microphone receiver 15 corresponds to the sound outlet end of the microphone support frame 23, so as 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 the embodiment, the sound recorded by the receiver 13 and the microphone receiver 15 is transmitted to an external processor, and the processor determines whether the headset 2 meets the factory specification according to the sound recorded by the receiver 13 and the microphone receiver 15. If the headset 2 does not have the microphone support frame 23, the headset acoustic testing device 1 can omit the microphone support frame 14 and the microphone receiver 15.

[0025] Please refer to Figure 5 , which is a perspective view of the headset acoustic testing device of the second embodiment of the application. As shown in the figure, the headset acoustic testing device 1 of the embodiment is different from the headset acoustic testing device of the above-mentioned embodiment in that the headset acoustic testing device 1 of the embodiment further comprises a soundproof box 16. The soundproof box 16 of the embodiment accommodates the earphone support frame 10, the two ear cover fixing blocks 11, the two sealing members 12, the two receivers 13, the microphone support frame 14 and the microphone receiver 15. The soundproof box 16 of the embodiment mainly prevents external noise from affecting the sound receiving effect of the microphone receiver 15. If the microphone of the headset is not tested for normality, the soundproof box 16 can be omitted. During the testing process, the sealing member 12 can block the external noise from entering the cavity between the ear cover structure and the ear cover accommodating groove. Of course, with the setting of the soundproof box 16, the external noise can be more effectively blocked.

[0026] In summary, the application provides a headset acoustic testing device. The gap between the side wall of the ear cover structure and the ear cover accommodating groove is filled with the sealing member, so as to improve the sealing performance of the cavity formed between the ear cover structure and the ear cover accommodating groove, thereby effectively preventing the external noise from entering the cavity formed between the ear cover structure and the ear cover accommodating groove. In this way, the setting of the soundproof box can be omitted, the position of the ear cover structure disposed in the ear cover accommodating groove can be observed and confirmed by the human eye during the testing process, and the accuracy of the acoustic testing is improved.

[0027] It has to be noted that, as used herein, the terms "includes", "including", "has", "having" or the like are intended to be open-ended: the description is not to be limited to instances in which every feature or element illustrated herein is included, but also to instances in which one or more such features or elements are not present.

[0028] The embodiments of the present application described above are only illustrative, and are not intended to limit the present application. The skilled in the art can make various modifications to the present application without departing from the spirit and scope of the present application, and all the modifications shall fall within the scope of the present application.

Claims

1. A headphone acoustic test apparatus, characterized by, The head-mounted earphone acoustic testing device comprises: a headset support frame having two ear cover connecting portions arranged symmetrically; two ear cover fixing blocks arranged respectively at the two ear cover connecting portions, each of the ear cover fixing blocks having an ear cover accommodating groove on the surface thereof away from the ear cover connecting portion, and the bottom of each of the ear cover accommodating grooves having a through hole; two sealing members arranged respectively in the corresponding ear cover accommodating grooves and along the side walls of the ear cover accommodating grooves; two receivers arranged respectively in the corresponding through holes, and the receiving end of each of the receivers facing the corresponding ear cover accommodating groove; wherein two ear cover structures of a headset are arranged respectively in the corresponding ear cover accommodating grooves, and a cavity is formed between each of the ear cover structures and the corresponding ear cover accommodating groove, each of the sealing members filling the gap between the ear cover structure and the side wall of the ear cover accommodating groove, pressing the ear cover structure in the ear cover accommodating groove, sealing the cavity, and allowing the tester to observe whether the ear cover structure is correctly arranged in the ear cover accommodating groove; the sealing member being an elastomer or a fluid-containing capsule, the sealing member being the capsule containing the fluid, the capsule being arranged in the ear cover accommodating groove and along the side wall of the ear cover accommodating groove, the capsule having a fluid inlet, the bottom of the ear cover accommodating groove having a fluid filling hole, and the fluid inlet being connected with the fluid filling hole; the ear cover accommodating groove having a first accommodating area and a second accommodating area, the first accommodating area and the second accommodating area being separated by an annular spacer, the second accommodating area surrounding the first accommodating area, the second accommodating area accommodating the sealing member, the through hole being located in the first accommodating area, and the fluid filling hole being located in the second accommodating area.

2. The headphone acoustic test apparatus of claim 1, wherein each of the ear cover fixing blocks further having a positioning protrusion on the surface thereof facing the ear cover connecting portion, each of the ear cover connecting portions having a slot, the opening of the slot being located on the surface of the ear cover connecting portion facing the ear cover fixing block, and the positioning protrusion being arranged in the corresponding slot.

3. The headphone acoustic test apparatus of claim 2, wherein the headset support frame having a wiring portion, the wiring portion being in communication with the two slots, and the line of the receiver being led out from the wiring portion.

4. The headphone acoustic test apparatus of claim 1, wherein the top of the headset support frame further having a headset support support portion, the headset support support portion comprising a support block, and the support block being arranged on the top surface of the headset support frame.

5. The headphone acoustic test apparatus of claim 4, wherein the support block being movably connected with the headset support frame and moving away from or close to the headset support frame.

6. The headphone acoustic test apparatus of claim 4, wherein the headset support support portion further having a support protrusion arranged on the surface of the support block away from the headset support frame.

7. The head-mounted earphone acoustic testing device according to claim 6, wherein the support protrusion is movably connected with the support block, the support protrusion moving away from or close to the support block and adjusting the height of the support protrusion protruding from the support block.

8. The head-mounted earphone acoustic testing device according to claim 1, further comprising a microphone support frame arranged on one side of the headset support frame.

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

10. The headphone acoustic test apparatus of claim 9, further comprising a sound-attenuating box that houses the earphone support frame, the two earcup securing blocks, the two seals, the two receivers, the microphone support frame, and the microphone receiver.

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