Sound cavity device of novel hearing-aid earphone
By integrating the rear acoustic chamber cover, speaker unit, and front cavity protective cover of the hearing aid into a single unit, the problem of speaker leakage is solved, resulting in more efficient production and wider applicability.
Patent Information
- Application Number
- CN202520229408.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-02-13
AI Technical Summary
Existing hearing aids suffer from inconsistent speaker design, making it difficult to control sealing and prone to air leakage, which affects hearing performance and hinders mass production.
The rear acoustic chamber cover, speaker unit, and front cavity protective cover are integrated into one piece. The assembly is followed by gluing to form a seamless connection, which improves the sealing performance and facilitates automated production.
It improves the sealing consistency of the rear sound cavity, avoids air leakage, simplifies the production process, facilitates mass production management, reduces the defect rate, has a wide range of applications, and saves space.
Smart Images
Figure CN223758392U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to earphone field technology especially is a new -type hearing aid earphone's acoustic cavity device. BACKGROUND
[0002] In recent years, with the aging and war caused ear damage population more and more, hearing aid earphone demand increases, TWS type earphone is inclined to be young, and cost control is more valued by manufacturers, the loudspeaker in the prior art usually adopts high dynamic loudspeaker design, because of dynamic loudspeaker structure attribute, it has no back acoustic cavity, and the cost is 5-20 times of moving coil loudspeaker, the loudspeaker in the prior art also adopts low cost moving coil loudspeaker, utilizes the whole machine structure type acoustic cavity, and the sealing is carried out by gluing, and the disadvantages are: the consistency of production gluing sealing is difficult to control, once there is air leakage, it will seriously affect the side listening effect and howling, and there is the technical problem of air leakage, therefore, in view of the present situation, it is urgent to develop a new type of hearing aid earphone acoustic cavity device to meet the needs of practical use. SUMMARY
[0003] Therefore, the utility model provides a new type of hearing aid earphone acoustic cavity device, which improves the sealing consistency of the back acoustic cavity by integrally connecting the back acoustic cavity cover, the loudspeaker monomer and the front cavity protection cover, avoids air leakage, facilitates mass production control and facilitates the realization of automatic equipment production.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0005] A new type of hearing aid earphone acoustic cavity device, comprising a back acoustic cavity cover, a loudspeaker monomer and a front cavity protection cover, the back acoustic cavity cover is located behind the loudspeaker monomer, the front cavity protection cover is located in front of the loudspeaker monomer, the back acoustic cavity cover and the loudspeaker monomer form a back acoustic cavity, the loudspeaker monomer is provided with an air outlet hole for adjusting the air pressure in the back acoustic cavity, the air outlet hole is in communication with the internal space of the back acoustic cavity, and the back acoustic cavity cover, the loudspeaker monomer and the front cavity protection cover are integrally connected.
[0006] As a preferred scheme, the loudspeaker monomer comprises a loudspeaker support, a magnet, a coil and a diaphragm, the back acoustic cavity cover is located behind the loudspeaker support, the front cavity protection cover is located in front of the loudspeaker support, the diaphragm is fixed to the front side of the loudspeaker support, the magnet is fixed to the back side of the loudspeaker support, and the coil is fixed to the back side of the diaphragm and extends to the position of the magnet.
[0007] As a preferred scheme, the loudspeaker support comprises an integral connecting part and a protruding part, the protruding part is located behind the connecting part, the connecting part is distributed along the outer side of the circumference of the protruding part, and the air outlet hole is arranged at the center position of the protruding part.
[0008] As a preferred solution: the rear sound cavity cover is arranged at the rear of the protruding part, and the rear sound cavity is formed between the inner side wall of the rear sound cavity cover and the outer side wall of the protruding part.
[0009] As a preferred solution: the connecting part has an outer edge, a sunken step is formed between the outer edge and the protruding part, and the outer edge is planar; the front side wall of the rear sound cavity cover is planar, and the front side wall of the rear sound cavity cover abuts against the outer edge.
[0010] As a preferred solution: the horn support is provided with lead wire pads, the two lead wire pads are symmetrically and spacedly arranged on the horn support, and the two lead wire pads are in close contact with the horn support.
[0011] As a preferred solution: the rear sound cavity cover is provided with a gap for accommodating the lead wire pads, and the two lead wire pads are located on the side of the rear sound cavity cover.
[0012] As a preferred solution: the horn support and the front cavity protection cover form a containing cavity, the magnet, the coil and the diaphragm are located in the containing cavity, and the horn support and the front cavity protection cover are in close combination.
[0013] As a preferred solution: the front cavity protection cover is in a circular ring shape, and the middle part of the front cavity protection cover is protruded forward to form a boss.
[0014] Compared with the prior art, the utility model has obvious advantages and beneficial effects, specifically, according to the above technical scheme, the integral connection of the rear sound cavity cover, the horn monomer and the front cavity protection cover improves the consistency of the rear sound cavity sealing, avoids air leakage, facilitates mass production control, facilitates the realization of automatic equipment production, and simplifies the production of manufacturers; the sound cavity device of the novel hearing aid provided by the application effectively saves more space, facilitates the design of more shapes, and has a wide range of applications; the rear sound cavity cover, the horn monomer and the front cavity protection cover are convenient for machining and manufacturing during assembly, convenient for testing each link during production, and reduce the rate of defective products.
[0015] To make the structure characteristics and functions of the utility model clearer, specific embodiments will be described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a first perspective three-dimensional structure schematic diagram of the sound cavity device of the novel hearing aid.
[0017] Figure 2 It is a second perspective three-dimensional structure schematic diagram of the sound cavity device of the novel hearing aid.
[0018] Figure 3The utility model discloses a novel sound cavity device of hearing aid, which comprises a rear sound cavity cover, a loudspeaker monomer and a front cavity protection cover.
[0019] Figure 4 The utility model discloses a novel sound cavity device of hearing aid, which comprises a rear sound cavity cover, a loudspeaker monomer and a front cavity protection cover.
[0020] Figure 5 The utility model discloses a novel sound cavity device of hearing aid, which comprises a rear sound cavity cover, a loudspeaker monomer and a front cavity protection cover.
[0021] Figure 6 The utility model discloses a novel sound cavity device of hearing aid, which comprises a rear sound cavity cover, a loudspeaker monomer and a front cavity protection cover.
[0022] Figure 7 The utility model discloses a novel sound cavity device of hearing aid, which comprises a rear sound cavity cover, a loudspeaker monomer and a front cavity protection cover.
[0023] Figure 8 The utility model discloses a novel sound cavity device of hearing aid, which comprises a rear sound cavity cover, a loudspeaker monomer and a front cavity protection cover.
[0024] The utility model discloses a novel sound cavity device of hearing aid, which comprises a rear sound cavity cover, a loudspeaker monomer and a front cavity protection cover.
[0025] In the figure: 100, sound cavity device;10, rear sound cavity cover;11, let position gap;20, loudspeaker monomer;21, loudspeaker support;211, connecting portion;212, outer edge;213, protruding portion;214, air outlet hole;215, sunken step;216, lead pad;22, magnet;23, coil;24, diaphragm;30, rear sound cavity;40, front cavity protection cover;41, boss. Specific implementation
[0026] The utility model discloses a novel sound cavity device of hearing aid, which comprises a rear sound cavity cover, a loudspeaker monomer and a front cavity protection cover. Figures 1 to 8 The utility model discloses a novel sound cavity device of hearing aid, which comprises a rear sound cavity cover, a loudspeaker monomer and a front cavity protection cover.
[0027] The utility model discloses a novel sound cavity device of hearing aid, which comprises a rear sound cavity cover, a loudspeaker monomer and a front cavity protection cover.
[0028] The sealing consistency of the rear sound cavity 30 is improved by integrally connecting the rear sound cavity cover 10, the loudspeaker body 20 and the front cavity protection cover 40, air leakage is avoided, mass production control is facilitated, automatic equipment production is realized, and the manufacturer's production is simplified; the sound cavity device 100 of the application can effectively save more space, facilitate the design of more shapes, and has a wide range of applications; the rear sound cavity cover 10, the loudspeaker body 20 and the front cavity protection cover 40 are convenient for processing and manufacturing during assembly, and each link can be tested during production, thereby reducing the rate of defective products.
[0029] The rear sound cavity cover 10, the loudspeaker body 20 and the front cavity protection cover 40 are integrally connected by assembling and then gluing, the gluing process is simpler, the combination of the loudspeaker body 20 and the rear sound cavity 30 is realized, and automatic mass production is facilitated.
[0030] In the prior art, the loudspeaker rear exhaust is natural exhaust, and the rear sound cavity 30 is designed through the whole machine shell. Since the upper and lower shells are in a split structure in the mold assembly design, it is impossible to achieve consistent sealing in mass production. The present application realizes monomer assembly process by integrally connecting the rear sound cavity cover 10, the loudspeaker body 20 and the front cavity protection cover 40, which effectively solves the problem of air leakage in mass production.
[0031] The loudspeaker body 20 includes a loudspeaker support 21, a magnet 22, a coil 23 and a diaphragm 24. The rear sound cavity cover 10 is located behind the loudspeaker support 21. The front cavity protection cover 40 is located in front of the loudspeaker support 21. The diaphragm 24 is fixed to the front side of the loudspeaker support 21. The magnet 22 is fixed to the rear side of the loudspeaker support 21. The coil 23 is fixed to the rear side of the diaphragm 24 and extends to the position of the magnet 22. The overall structure is compact and occupies less area.
[0032] The loudspeaker support 21 includes an integral connecting portion 211 and a protruding portion 213. The protruding portion 213 is located behind the connecting portion 211. The connecting portion 211 is distributed along the outer side of the circumference of the protruding portion 213. The air outlet hole 214 is provided at the center position of the protruding portion 213. By setting the air outlet hole 214 at the center position of the protruding portion 213, the air pressure of the rear sound cavity 30 is adjusted, and the adjustment effect is improved. By using the connecting portion 211, the loudspeaker support 21 is tightly connected with the rear sound cavity cover 10 and the front cavity protection cover 40.
[0033] The rear sound cavity cover 10 is sleeved behind the protruding portion 213, and the rear sound cavity 30 is formed between the inner side wall of the rear sound cavity cover 10 and the outer side wall of the protruding portion 213. By using the protruding portion 213, the rear sound cavity 30 is formed with the rear sound cavity cover 10.
[0034] The connecting part 211 has an outer edge 212, which forms a sunken step 215 with the protruding part 213, and the outer edge 212 is planar; the front side wall of the rear sound cavity cover 10 is planar, and the front side wall of the rear sound cavity cover 10 abuts against the outer edge 212; by setting the outer edge 212 to be planar and setting the front side wall of the rear sound cavity cover 10 to be planar, the stability when the front side wall of the rear sound cavity cover 10 abuts against the outer edge 212 can be improved, the connection tightness can be ensured, and the airtightness can be improved.
[0035] The horn support 21 is provided with lead wire pads 216, the lead wire pads 216 are two, and the two lead wire pads 216 are symmetrically and spaced apart on the horn support 21; the two lead wire pads 216 are in close contact with the horn support 21; by adopting the lead wire pads 216, the welding of the horn lead wire can be facilitated.
[0036] The rear sound cavity cover 10 is provided with a gap notch 11 for giving way to the lead wire pads 216, and the two lead wire pads 216 are located beside the rear sound cavity cover 10; by setting the gap notch 11, position interference can be avoided.
[0037] By adopting the lead wire pads 216, the two lead wire pads 216 are located beside the rear sound cavity cover 10; so that the horn lead wire does not pass through the rear sound cavity 30, and the technical problem of air leakage caused by movement of the horn lead wire can be solved.
[0038] The horn support 21 and the front cavity protection cover 40 form an accommodation cavity therebetween, the magnet 22, the coil 23 and the diaphragm 24 are located in the accommodation cavity, and the horn support 21 and the front cavity protection cover 40 are engaged; the overall design is compact and occupies small space.
[0039] The front cavity protection cover 40 is annular, and the middle part of the front cavity protection cover 40 protrudes forward to form a boss 41.
[0040] The use method and principle of the sound cavity device of the new hearing aid are as follows:
[0041] In the prior art, the horn rear exhaust is natural exhaust, and the rear sound cavity is designed through the whole machine shell. Since the upper and lower shells are in a split structure in the mold assembly design, it is impossible to achieve consistent sealing in mass production. The patent utilizes the integral connection of the rear sound cavity cover, the horn single body and the front cavity protection cover to realize the single assembly process, which can effectively solve the air leakage problem in mass production. The rear sound cavity cover, the horn single body and the front cavity protection cover are integrally connected through assembly and then gluing, the gluing process is simpler, the combination of the horn single body and the rear sound cavity is realized, and automatic mass production is facilitated.
[0042] The utility model discloses design emphases at, through with rear acoustic cavity cover, loudspeaker monomer and front cavity protection cover integrated connection has improved the rear acoustic cavity sealing consistency, avoids the air leakage, is convenient for the mass production management and control, is convenient for realizing the automatic equipment production, makes the manufacturer production simplification, through adopting the acoustic cavity device of a kind of novel hearing aid earphone provided in the present application, effectively save more space, it is convenient to satisfy more shape design, wide range of application;Rear acoustic cavity cover, loudspeaker monomer and front cavity protection cover are conveniently processed when assembling, it is convenient to test every link when producing, reduces the rate of defective products.
[0043] The above is only the preferred embodiment of the utility model, and does not limit the technical range of the utility model in any way, so any slight modification, equivalent change and modification made according to the technical essence of the utility model to the above embodiment still belongs to the scope of the technical scheme of the utility model.
Claims
1. An acoustic cavity arrangement for a new type of hearing aid earpiece, characterized in that: The loudspeaker unit comprises a rear cavity cover, a loudspeaker unit and a front cavity protection cover, the rear cavity cover is located behind the loudspeaker unit, the front cavity protection cover is located in front of the loudspeaker unit, the rear cavity cover and the loudspeaker unit form a rear cavity, the loudspeaker unit is provided with an air outlet hole for adjusting the air pressure in the rear cavity, the air outlet hole is in communication with the internal space of the rear cavity, and the rear cavity cover, the loudspeaker unit and the front cavity protection cover are integrally connected.
2. A sound cavity device for a new type of hearing aid earpiece as claimed in claim 1, characterized in that: The loudspeaker unit comprises a loudspeaker support, a magnet, a coil and a diaphragm, the rear cavity cover is located behind the loudspeaker support, the front cavity protection cover is located in front of the loudspeaker support, the diaphragm is fixed to the front side of the loudspeaker support, the magnet is fixed to the rear side of the loudspeaker support, and the coil is fixed to the rear side of the diaphragm and extends to the position of the magnet.
3. A sound cavity device for a new type of hearing aid earpiece according to claim 2, characterized in that: The loudspeaker support comprises an integral connecting portion and a protruding portion, the protruding portion is located behind the connecting portion, the connecting portion is distributed along the outer side of the circumference of the protruding portion, and the air outlet hole is arranged at the center of the protruding portion.
4. A sound cavity device for a new type of hearing aid earpiece according to claim 3, characterized in that: The rear cavity cover is sleeved behind the protruding portion, and the rear cavity is formed between the inner side wall of the rear cavity cover and the outer side wall of the protruding portion.
5. A sound cavity device of a new type of hearing aid earphone according to claim 3, characterized in that: The connecting portion has an outer edge, a sunken step is formed between the outer edge and the protruding portion, the outer edge is in a planar shape, the front side wall of the rear cavity cover is in a planar shape, and the front side wall of the rear cavity cover is in abutment with the outer edge.
6. A sound cavity device for a new type of hearing aid earpiece according to claim 2, characterized in that: The loudspeaker support is provided with lead bonding pads, the two lead bonding pads are symmetrically and spacedly distributed on the loudspeaker support, and the two lead bonding pads are in abutment with the loudspeaker support.
7. A sound cavity device for a new type of hearing aid earpiece according to claim 6, characterized in that: The rear cavity cover is provided with a gap for giving way to the lead bonding pads, and the two lead bonding pads are located beside the rear cavity cover.
8. A sound cavity device of a new type of hearing aid earphone according to claim 2, characterized in that: The loudspeaker support and the front cavity protection cover form a containing cavity, the magnet, the coil and the diaphragm are located in the containing cavity, and the loudspeaker support and the front cavity protection cover are in engagement.
9. A sound cavity device of a new type of hearing aid earphone according to claim 2, characterized in that: The front cavity protection cover is in a circular ring shape, and the middle part of the front cavity protection cover is protruded forward to form a boss.