Hearing aid structure

Abstract

The utility model discloses a hearing aid structure, which comprises a shell, a main control board, a pickup unit and a sounding unit, the interior of the shell is hollow to form an accommodating cavity, the main control board is arranged in the accommodating cavity, a groove is arranged on the inner wall of the shell, a sound outlet nozzle is further arranged on the shell, the pickup unit is arranged in the groove, the sounding unit is arranged on the sound outlet nozzle, and the sound outlet nozzle is arranged on the shell. The sound pickup unit and the sound production unit are electrically connected with the main control board, and the sound pickup unit and the sound production unit are respectively fixed in the groove and the sound outlet nozzle through sealants. According to the hearing aid structure, the pickup unit is installed in the groove, the sounding unit is installed in the sound outlet nozzle, and the groove and the sound outlet nozzle are sealed by the sealant, so that the pickup unit and the sounding unit are sealed and fixed, mutual interference between the pickup unit and the sounding unit can be effectively avoided, and the squeal condition is further avoided. And the pickup unit and the sounding unit are sealed and fixed by using the sealant, so that the internal structure of the hearing aid can be simplified, and the overall structure of the hearing aid is simpler.

Description

TECHNICAL FIELD

[0001] The utility model relates to audio product technical field, especially relate to a hearing aid structure. BACKGROUND

[0002] Hearing aid is the auxiliary tool of hearing impaired person, is used to make up the defect caused by hearing impairment, and then improves the tool, equipment, device and instrument etc. of conversation communication ability with others. Hearing aid is generally composed of microphone, amplifier, receiver and power supply, and hearing aid is divided into box type, ear back type, ear in type according to the appearance;From the angle of wearing position and appearance, it can be divided into ear back type hearing aid, ear in type hearing aid, ear canal type hearing aid, complete ear canal type hearing aid.

[0003] The hearing aid structure in prior art is all microphone and loudspeaker are installed in the shell body of hearing aid, however, in use, microphone will collect the sound when loudspeaker vibrates, interference will be generated between each other, and howling condition is generated, leading to the sound output effect of hearing aid is not ideal;For the above problems, a hearing aid with multiple cavities in the shell body of hearing aid is designed on the market, and microphone and loudspeaker are installed in separate cavities, so as to reduce the generation of howling, but this design will lead to the overall structure of hearing aid is complicated, which is not conducive to the production of hearing aid, so the hearing aid still needs to be improved. SUMMARY

[0004] The utility model aims at providing a hearing aid structure that reduces howling and has a simple structure.

[0005] To solve the above technical problems, the utility model can adopt the following technical solutions to realize:

[0006] A hearing aid structure includes a shell, a main control board, a sound pickup unit and a sound emitting unit, the shell is hollow inside to form a containing cavity, the main control board is installed in the containing cavity, and a groove is arranged on the inner wall of the shell, an audio outlet is also arranged on the shell, the sound pickup unit is installed in the groove, and the sound emitting unit is installed on the audio outlet, the sound pickup unit and the sound emitting unit are electrically connected to the main control board through wires, and the sound pickup unit and the sound emitting unit are fixed in the groove and the audio outlet by sealing glue.

[0007] In one embodiment, the shell includes a main shell and a cover, the cover is connected to the main shell in airtight and closed manner, the groove is arranged on the inner wall of the cover, and the audio outlet is arranged on the main shell.

[0008] In one embodiment, a sound pickup hole is arranged on the cover, and the position of the sound pickup hole corresponds to the position of the groove.

[0009] In one embodiment, a first waterproof net is arranged on the inner side of the sound pickup hole.

[0010] In one of the embodiments, the end of the sound outlet nozzle is provided with a second waterproof net.

[0011] In one of the embodiments, the outer wall of the sound outlet nozzle is further sleeved with a rubber plug.

[0012] In one of the embodiments, the accommodating cavity of the shell is further provided with a battery electrically connected with the main control board.

[0013] In one of the embodiments, the shell is further provided with a conductive metal sheet for charging the battery.

[0014] In one of the embodiments, the main shell and the surface cover are closed and covered by hot melting, laser welding and ultrasonic welding. Advantages

[0015] The hearing aid structure of the utility model, the main control board is arranged in the accommodating cavity of the shell, and the recess is arranged on the inner wall of the shell, the sound outlet nozzle is arranged on the shell, the sound pickup unit is installed in the recess and electrically connected with the main control board, and the sound generating unit is installed in the sound outlet nozzle and electrically connected with the main control board, after the sound pickup unit and the sound generating unit are installed respectively, the recess and the sound outlet nozzle are sealed by using the sealing glue, so that the sound pickup unit and the sound generating unit are sealed and fixed, the sound pickup unit and the sound generating unit are effectively prevented from interfering with each other, the howling condition is avoided, the sound outlet effect is ensured, the structure of the hearing aid is simplified by sealing and fixing the sound pickup unit and the sound generating unit by using the sealing glue, so that the overall structure of the hearing aid is simpler, and the hearing aid is convenient to produce. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the hearing aid structure of the utility model Figure One ;

[0017] Figure 2 It is an exploded view of the hearing aid structure of the utility model

[0018] Figure 3 It is a schematic view of the hearing aid structure of the utility model Figure Two .

[0019] As shown in the drawings:

[0020] 100, shell; 110, recess; 120, sound outlet nozzle; 130, main shell; 140, surface cover; 150, sound pickup hole; 160, conductive metal sheet; 200, main control board; 300, sound pickup unit; 400, first waterproof net; 500, second waterproof net; 600, rubber plug. DETAILED DESCRIPTION

[0021] For the above purposes, features and advantages of the present application to be more apparent and understandable, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, a number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific details set forth herein without departing from the scope of the present application, and it can be apparent to one skilled in the art that similar improvements can be made without departing from the scope of the present application. Accordingly, the present application is not limited to the specific embodiments disclosed below.

[0022] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. Like numbers refer to like elements throughout.

[0023] Unless otherwise defined, 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 application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0024] Please refer to Figures 1 to 3 A hearing aid structure comprises a shell 100, a main control board 200, a sound pickup unit 300 and a sound emitting unit. The shell 100 is internally hollow to form a receiving cavity. The main control board 200 is installed in the receiving cavity and is provided with a groove 110 on the inner wall of the shell 100. The shell 100 is further provided with a sound outlet 120. The sound pickup unit 300 is installed in the groove 110. The sound emitting unit is installed in the sound outlet 120. The sound pickup unit 300 and the sound emitting unit are electrically connected to the main control board 200 through wires respectively. The sound pickup unit 300 and the sound emitting unit are fixed in the groove 110 and the sound outlet 120 respectively by sealing glue.

[0025] Specifically, in the embodiment, the main control board 200 is installed in the accommodating cavity of the shell 100, a groove 110 is arranged on the inner wall of the shell 100, an acoustic outlet 120 is arranged on the shell 100, the pickup unit 300 is installed in the groove 110 and electrically connected with the main control board 200, and the sound generating unit (i.e. a loudspeaker, not shown in the figure) is installed in the acoustic outlet 120 and electrically connected with the main control board 200. After the pickup unit 300 and the sound generating unit are installed respectively, the groove 110 and the acoustic outlet 120 are sealed by using sealing glue, so as to seal and fix the pickup unit 300 and the sound generating unit. The pickup unit 300 and the sound generating unit are sealed by using the sealing glue respectively, which can effectively avoid interference between the pickup unit 300 and the sound generating unit, thereby avoiding the generation of howling. In addition, the structure inside the hearing aid can be simplified by using the sealing glue to seal and fix the pickup unit 300 and the sound generating unit, so that the overall structure of the hearing aid is simpler. In addition, the sealing glue is common on the market and easy to purchase, so that the hearing aid is easy to produce and the manufacturing cost of the hearing aid is reduced.

[0026] In order to facilitate the assembly of the hearing aid, the shell 100 in the embodiment includes a main shell 130 and a face cover 140 which is connected with the main shell 130 in a covering manner. The groove 110 is arranged on the inner wall of the face cover 140, and the acoustic outlet 120 is arranged on the main shell 130. During assembly, the main control board 200, the pickup unit 300 and the sound generating unit are installed at corresponding positions of the shell 100 respectively, and then the face cover 140 is covered on the main shell 130, so that the assembly of the hearing aid is realized.

[0027] In order to ensure that the pickup unit 300 can normally pick up sound, a pickup hole 150 is arranged on the face cover 140, and the position of the pickup hole 150 corresponds to the position of the groove 110. The pickup hole 150 facilitates the pickup unit 300 in the groove 110 to pick up external audio, so as to ensure the use of the hearing aid.

[0028] In order to facilitate the use of the hearing aid, a battery (not shown in the figure) which is electrically connected with the main control board 200 is arranged in the accommodating cavity of the shell 100 in the embodiment. The battery can supply power to the main control board 200, so as to ensure the normal use of the hearing aid. A conductive metal sheet 160 for charging the battery is arranged on the shell 100, so as to realize the charging function of the battery. The rubber plug 600 sleeved on the outer wall of the acoustic outlet 120 can facilitate the user to better contact the ear when using the hearing aid, so as to ensure the use effect of the hearing aid.

[0029] Finally, in order to make the hearing aid waterproof function, and the waterproof level can reach IPX5 level, so the cover 140 in the main shell 130 when closing, can adopt hot melting, laser welding, ultrasonic welding for closed closing, and the inside of the sound hole 150 is provided with the first waterproof net 400, at the same time in the end of the sound outlet 120 is provided with the second waterproof net 500, through the closed closing of the cover 140 and the main shell 130, combined with the first waterproof net 400 to the sound hole 150 waterproof, the second waterproof net 500 to the sound outlet 120 waterproof, and then realize the waterproof function to the whole hearing aid, and make the hearing aid waterproof level reaches IPX5 level, make the hearing aid no fear sweat, rain or short water splashing, in order to facilitate the hearing aid in a variety of occasions.

[0030] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Any person skilled in the art can easily implement the present application according to the drawings and the above description; however, any person skilled in the art can make some changes, modifications and equivalent changes within the scope of the technical scheme of the present application by using the above disclosed technical content; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present application are still within the protection scope of the technical scheme of the present application.

Claims

1. A hearing aid structure, characterized by: The shell, the main control board, the pickup unit and the sound unit are included, the inside of the shell is hollow to form a containing cavity, the main control board is installed in the containing cavity, and a groove is arranged on the inner wall of the shell, and a sound outlet is further arranged on the shell; The pickup unit is installed in the groove, and the sound unit is installed on the sound outlet, the pickup unit and the sound unit are respectively electrically connected with the main control board through wires, and the pickup unit and the sound unit are respectively fixed in the groove and the sound outlet by sealing glue.

2. The hearing aid structure of claim 1, wherein: The shell includes a main shell and a cover, the cover is connected with the main shell in a sealed and closed manner, the groove is arranged on the inner wall of the cover, and the sound outlet is arranged on the main shell.

3. The hearing aid structure of claim 2, wherein: A pickup hole is arranged on the cover, and the position of the pickup hole corresponds to the position of the groove.

4. The hearing aid structure of claim 3, wherein: A first waterproof net is arranged on the inner side of the pickup hole.

5. The hearing aid structure of claim 1, wherein: A second waterproof net is arranged on the end of the sound outlet.

6. The hearing aid structure of claim 1, wherein: A rubber plug is further sleeved on the outer wall of the sound outlet.

7. The hearing aid structure of claim 1, wherein: A battery electrically connected with the main control board is further arranged in the containing cavity of the shell.

8. The hearing aid structure of claim 1, wherein: The shell is further provided with a metal sheet for charging the battery.

9. The hearing aid structure of claim 2, wherein: The main shell and the cover are sealed and closed by hot melting, laser welding or ultrasonic welding.

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