Hearing aid

Abstract

The utility model relates to the technical field of hearing aids, and discloses a hearing aid comprising an upper cover, the top end of which is provided with an installation port; the upper cover covers the lower cover to form a mounting space; the circuit board is arranged in the mounting space and is fixedly connected to the lower cover; one end of the receiving unit penetrates through the upper cover or the lower cover, is accommodated in the mounting space and is electrically connected with the circuit board; the key is arranged in the mounting opening and movably connected with the upper cover, the key comprises a first contact pin and a second contact pin which are arranged at an interval, the first contact pin and the second contact pin protrude towards one side of the mounting space, and the first contact pin and / or the second contact pin can abut against the circuit board; and the sealing element comprises a first through hole and a second through hole which are arranged at an interval, the sealing element is pressed between the upper cover and the circuit board, and the first contact pin and the second contact pin respectively penetrate through the first through hole and the second through hole. And the waterproof performance of the hearing aid is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hearing aid technical field, in particular to a hearing aid. BACKGROUND

[0002] With the increasing popularity of electronic products, especially the wide application of hearing aids, the demand of users for waterproof performance is increasing. Especially in the process of daily wearing, hearing aids are often exposed to humid environments, and users are prone to cause the key part of the device to be waterlogged or damp due to sweat or rainwater and other external factors, thereby affecting the normal use of the device, and even may cause circuit failure. Therefore, how to effectively prevent water and sweat from entering the key area has become an important problem in the design of hearing aids.

[0003] At present, the key position design of many hearing aids on the market does not fully consider the waterproof problem, especially the protection of the key part is relatively weak. Some products use double-shot molding technology to achieve waterproof effect through molding of two different materials. However, although the double-shot molding process can achieve a certain waterproof effect, its production cost is high, the manufacturing cycle is long, and the production efficiency is low. In addition, the complexity of the double-shot molding structure also increases the difficulty in the design and manufacturing process, limiting large-scale application. SUMMARY

[0004] The technical problem to be solved by the utility model is that there are problems of insufficient waterproof performance, or high cost and low production efficiency to achieve waterproof effect.

[0005] In order to solve the above technical problems, the utility model provides a hearing aid, which comprises: an upper cover, the upper cover is provided with a mounting port at the top end;

[0006] A lower cover is covered by the upper cover and forms a mounting space;

[0007] A circuit board is arranged in the mounting space and fixedly connected to the lower cover;

[0008] A receiving unit is arranged in the mounting space and electrically connected to the circuit board;

[0009] A key is arranged in the mounting port and movably connected to the upper cover, the key comprises a first contact leg and a second contact leg arranged at intervals, the first contact leg and the second contact leg are protruded to one side of the mounting space, and the first contact leg and / or the second contact leg can abut against the circuit board; and

[0010] A sealing element comprises a first through hole and a second through hole arranged at intervals, the sealing element is compressed between the upper cover and the circuit board, and the first contact leg and the second contact leg are respectively arranged in the first through hole and the second through hole.

[0011] Further, the first pin and the first through hole and the second pin and the second through hole are all in interference fit.

[0012] Further, the first through hole and the second through hole are both provided with a thinning groove at both ends.

[0013] Further, the upper cover is provided with a first flange protruding towards the mounting port, a limiting groove is formed between the first flange and the bottom surface of the mounting port, and one end of the key is limited in the limiting groove.

[0014] Further, one end of the key is provided with a second flange, and the second flange is movably arranged in the limiting groove to limit the key from coming out of the mounting port.

[0015] Further, the hearing aid further comprises a bolt, the upper cover is provided with a first mounting hole, the first mounting hole is in communication with the mounting space, the sealing element is provided with a second mounting hole, and the bolt is sequentially fixedly connected to the circuit board through the first mounting hole and the second mounting hole to connect the upper cover and the circuit board.

[0016] Further, the hearing aid further comprises a dustproof net, the dustproof net is pressed between the upper cover and the sealing element, and the bolt is sequentially fixedly connected to the circuit board through the first mounting hole, the dustproof net and the second mounting hole.

[0017] Further, the sealing element is made of silica gel or thermoplastic polyurethane.

[0018] Compared with the prior art, the hearing aid provided in the embodiment of the utility model has the beneficial effects that:

[0019] (1) The first pin and the second pin of the key are matched with the first through hole and the second through hole of the sealing element, so that water, sweat or dust and other external factors are prevented from entering the circuit board in the mounting space during use of the key, and the waterproof and dustproof performance of the hearing aid is greatly improved.

[0020] (2) The first pin and the second pin of the key are designed to enable the key to accurately and sensitively contact the circuit board, thereby ensuring the smoothness and response speed of operation.

[0021] (3) The sealing element can effectively prevent external water, dust and other factors from entering, reduce damage and corrosion of the circuit board caused by external factors, thereby improving the durability of the hearing aid and prolonging the service life.

[0022] (4) The sealing element and the key are matched to simplify the production process, reduce the production difficulty, and do not rely too much on expensive and complex injection molding process, so that the production process is more efficient and the cost is lower. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is an explosion diagram of the embodiment of the utility model;

[0024] Figure 2 is a partial enlarged view of Figure 1 ;

[0025] Figure 3 is a partial enlarged view of Figure 2 ;

[0026] Figure 4 is a sectional view of the embodiment of the utility model.

[0027] In the figure, 1, upper cover; 11, installation port; 12, first flange; 13, first mounting hole; 2, lower cover; 21, installation space;

[0028] 3, circuit board;

[0029] 4, receiving unit;

[0030] 5, key; 51, first contact pin; 52, second contact pin; 53, second flange;

[0031] 6, sealing element; 61, first through hole; 62, second through hole; 63, thinning groove; 64, second mounting hole;

[0032] 7, dustproof net. DETAILED DESCRIPTION

[0033] The specific embodiments of the utility model will be further described in detail below in combination with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.

[0034] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "vertical", "horizontal", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like in the utility model is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0035] In the description of the utility model, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0036] AsFigures 1-4 The hearing aid of the preferred embodiment of the utility model includes: the upper cover 1, the upper cover 1 top is equipped with the installation mouth 11;

[0037] The lower cover 2, the upper cover 1 covers the lower cover 2 and forms the installation space 21;

[0038] The circuit board 3 is arranged in the installation space 21 and is fixedly connected to the lower cover 2;

[0039] The receiving unit 4 is accommodated in the installation space 21 with one end penetrating the upper cover 1 or the lower cover 2 and is electrically connected to the circuit board 3;

[0040] The key 5 is arranged in the installation mouth 11 and is movably connected to the upper cover 1, the key 5 includes the first contact leg 51 and the second contact leg 52 arranged at intervals, the first contact leg 51 and the second contact leg 52 are protruded to one side of the installation space 21, and the first contact leg 51 and / or the second contact leg 52 can abut against the circuit board 3;And

[0041] The sealing element 6 includes the first through hole 61 and the second through hole 62 arranged at intervals, the sealing element 6 is pressed between the upper cover 1 and the circuit board 3, and the first contact leg 51 and the second contact leg 52 penetrate the first through hole 61 and the second through hole 62 respectively.

[0042] Based on the above scheme, the first contact leg and the second contact leg of the key 5 are matched with the first through hole 61 and the second through hole 62 of the sealing element 6, so that the key 5 can prevent external factors such as moisture, sweat or dust from entering the circuit board 3 in the installation space 21 during use, greatly improving the waterproof and dustproof performance of the hearing aid. The design of the first contact leg and the second contact leg of the key 5 enables the key 5 to accurately and sensitively contact the circuit board 3, ensuring the smoothness and response speed of operation. By using the sealing element 6, the intrusion of external moisture, dust and the like can be effectively prevented, reducing the damage and corrosion of the circuit board 3 caused by external factors, thereby improving the durability of the hearing aid and prolonging the service life. The cooperation of the sealing element 6 and the key 5 simplifies the production process, reduces the production difficulty, and the production process is more efficient and the cost is lower.

[0043] Preferably, the first contact leg 51 and the first through hole 61 and the second contact leg 52 and the second through hole 62 are all interference fit.

[0044] Based on the above scheme, through interference fit, the cooperation between the first contact leg and the first through hole 61 and the second contact leg and the second through hole 62 is more closely, effectively avoiding the penetration of moisture and dust, and improving the waterproof and dustproof ability of the hearing aid.

[0045] Preferably, the two end faces of the first through hole 61 and the second through hole 62 are provided with thinning grooves 63.

[0046] Based on the above scheme, and the first pin 51 and the first through hole 61 and the second pin 52 and the second through hole 62 are all interference fit, so that the contact area of the first pin 51 and the first through hole 61 and the second pin 52 and the second through hole 62 is smaller, more convenient for the user to press the key 5, improve the sensitivity of the key 5.

[0047] Preferably, the upper cover 1 is provided with a first flange 12 protruding towards the mounting port 11, and a limiting groove is formed between the first flange 12 and the bottom surface of the mounting port 11, and one end of the key 5 is limited in the limiting groove. One end of the key 5 is provided with a second flange 53, which is movably arranged in the limiting groove to prevent the key 5 from being pulled out of the mounting port 11.

[0048] Based on the above scheme, by setting the first flange 12 and the limiting groove, the activity range of the key 5 is limited, preventing the key 5 from loosening or shifting, and by designing the second flange 53 and movably arranging it in the limiting groove, the fixation of the key 5 is further enhanced. If the key 5 has a tendency to slide away from the mounting space 21, the second flange 53 can abut against the first flange 12 to prevent the key 5 from sliding out of the mounting port 11.

[0049] Preferably, the hearing aid further comprises a bolt member, the upper cover 1 is provided with a first mounting hole 13, the first mounting hole 13 is in communication with the mounting space 21, the sealing member 6 is provided with a second mounting hole 64, and the bolt member is sequentially connected to the circuit board 3 through the first mounting hole 13 and the second mounting hole 64, so as to connect the upper cover 1 and the circuit board 3.

[0050] Based on the above scheme, through the bolt member, the connection between the upper cover 1 and the circuit board 3 is more stable and easy to install, reducing the technical complexity in the production process and improving the production efficiency. The bolt member connection ensures the close fit of the sealing member 6, the upper cover 1 and the circuit board 3, enhances the overall sealing performance, and prevents moisture and dust from penetrating.

[0051] Preferably, the hearing aid further comprises a dust screen 7, the dust screen 7 is pressed between the upper cover 1 and the sealing member 6, and the bolt member is sequentially connected to the circuit board 3 through the first mounting hole 13, the dust screen 7 and the second mounting hole 64.

[0052] Based on the above scheme, the dust screen 7 can effectively prevent dust from entering the hearing aid, protect sensitive components such as the circuit board 3 from dust, and prolong the service life of the hearing aid.

[0053] Preferably, the sealing member 6 is made of silicone or thermoplastic polyurethane.

[0054] Based on the above scheme, the silica gel or the thermoplastic polyurethane material has excellent elasticity and resilience, can maintain good sealing effect for a long time, and quickly returns to the original state after the button 5 is pressed, ensuring that the sealing property of the button 5 is not affected. The two materials are wear-resistant, aging-resistant, and can resist external substances such as sweat and oil stains, thereby enhancing the service life of the hearing aid. The silica gel and the thermoplastic polyurethane are both environmentally friendly materials and do not contain harmful substances.

[0055] To sum up, the embodiment of the utility model provides a kind of hearing aid, it is through the cooperation of the first contact leg 51 and the second contact leg 52 of button 5 and the first through hole 61 and the second through hole 62 of sealing element 6, ensure that button 5 can prevent moisture, sweat or dust and other external factors into circuit board 3 in installation space 21 during use, greatly improve the waterproof dustproof performance of hearing aid.The first contact leg 51 and the second contact leg 52 of button 5 are designed so that button 5 can accurately and sensitively contact circuit board 3, ensuring the smoothness of operation and response speed. By using sealing element 6, the intrusion of external moisture, dust and the like can be effectively prevented, reducing the damage and corrosion of circuit board 3 caused by external factors, thereby improving the durability of hearing aid and prolonging the service life. The cooperation of sealing element 6 and button 5 simplifies the production process, reduces the production difficulty, and the production process is more efficient and the cost is lower.

[0056] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled persons in the technical field, several improvements and substitutions can be made without departing from the technical principles of the utility model, and these improvements and substitutions should also be considered as the protection range of the utility model.

Claims

1. A hearing aid, characterized in that The utility model relates to a kind of receiving unit, including: Upper cover (1), the upper cover (1) top end is equipped with installation port (11); Lower cover (2), the upper cover (1) covers the lower cover (2) and forms installation space (21); Circuit board (3), the circuit board (3) is equipped in the installation space (21) and is fixedly connected to the lower cover (2); Receiving unit (4), one end of the receiving unit is inserted into the installation space, and is electrically connected with the circuit board; Key (5), the key (5) is equipped in the installation port and is movably connected with the upper cover, the key (5) includes first contact leg (51) and second contact leg (52) arranged at intervals, the first contact leg (51) and the second contact leg (52) are protruded to one side of the installation space (21), and the first contact leg (51) and / or second contact leg (52) can abut against the circuit board (3);And Sealing element (6), the sealing element (6) includes first through hole (61) and second through hole (62) arranged at intervals, the sealing element (6) is pressed in between the upper cover (1) and the circuit board (3), and the first contact leg (51) and the second contact leg (52) are inserted into the first through hole (61) and the second through hole (62) respectively.

2. The hearing aid of claim 1, characterized in that The first contact leg (51) and the first through hole (61) and the second contact leg (52) and the second through hole (62) are all interference fit.

3. The hearing aid of claim 2, wherein The first through hole (61) and the second through hole (62) are both provided with thinning grooves (63) on both ends.

4. The hearing aid of claim 1, wherein The upper cover (1) is provided with first flange (12) protruded to the installation port (11), the first flange (12) and the bottom surface of the installation port (11) form a limiting groove, and one end of the key (5) is limited in the limiting groove.

5. The hearing aid of claim 4, wherein One end of the key (5) is provided with second flange (53), and the second flange (53) is movably arranged in the limiting groove to limit the key (5) from coming out of the installation port (11).

6. The hearing aid of claim 1, wherein It also includes bolt element, the upper cover (1) is provided with first mounting hole (13), the first mounting hole (13) is communicated with the installation space (21), the sealing element (6) is provided with second mounting hole (64), and the bolt element is fixedly connected to the circuit board (3) in sequence through the first mounting hole (13) and the second mounting hole (64) to connect the upper cover (1) and the circuit board (3).

7. The hearing aid of claim 6, wherein It also includes dust screen (7), the dust screen (7) is pressed in between the upper cover (1) and the sealing element (6), and the bolt element is fixedly connected to the circuit board (3) in sequence through the first mounting hole (13), the dust screen (7) and the second mounting hole (64).

8. The hearing aid of claim 1, wherein, The sealing element (6) is made of silica gel or thermoplastic polyurethane.

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