Sound production unit

Abstract

The sound production unit comprises a front cover and a waterproof rubber ring, the waterproof rubber ring comprises a vertical ring frame, a horizontal ring frame and an abutting ring frame which are sequentially connected from inside to outside, the abutting ring frame is provided with an abutting protruding part protruding towards the outer side, and the vertical ring frame and the abutting ring frame are located on the same side of the horizontal ring frame; the abutting ring frame is arranged on the outer wall of the front cover in a sleeving mode and connected with the front cover through a first adhesive layer in an adhesive mode, the side face, close to the front cover, of the horizontal ring frame is connected with the end face of the front cover through a second adhesive layer in an adhesive mode, and the vertical ring frame is connected with the front cover through a third adhesive layer in an adhesive mode. The sound production unit is novel in structure, the waterproof rubber ring is provided with the vertical ring frame and the horizontal ring frame, the gluing area between the waterproof rubber ring and the front cover is greatly increased, the binding force between the waterproof rubber ring and the front cover is improved, the phenomenon that the waterproof rubber ring and the front cover are easy to separate in the interference assembly process of the sound production unit and the external shell is effectively improved, and the sound production efficiency is improved. And the structural stability and the waterproof performance of a whole machine product can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of electroacoustic converters, in particular to a sound generating unit. Background Art

[0002] As a common electroacoustic transducer device that converts electrical energy into sound energy, the sound unit plays an indispensable role in the sound amplification system.

[0003] As the waterproof level of mobile phones and watches increases, the waterproof requirements of the sound units installed on them will also increase accordingly. At present, the sound units are equipped with waterproof rubber rings to meet the waterproof requirements, such as Figure 1 As shown, the waterproof rubber ring 2 is sleeved on the outside of the front cover 1 of the sound unit. During the assembly of the sound unit and the external shell 10, since the waterproof rubber ring is tightly matched with the external shell, when the sound unit and the external shell are assembled, the joint surface of the front cover and the waterproof rubber ring will be subjected to a force opposite to the assembly direction of the sound unit. This force can easily cause the waterproof rubber ring to separate from the front cover, so that the waterproof effect of the sound unit is affected. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a sound-generating unit whose front cover and waterproof rubber ring are not easily separated.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a sound unit, comprising:

[0006] Front cover;

[0007] A waterproof rubber ring, the waterproof rubber ring comprising a vertical ring frame, a horizontal ring frame and a contact ring frame which are sequentially connected from the inside to the outside, the contact ring frame having a contact convex portion protruding outward, and the vertical ring frame and the contact ring frame are located on the same side of the horizontal ring frame;

[0008] The abutting ring frame is sleeved on the outer wall of the front cover and is adhesively connected to the front cover through a first adhesive layer, the side surface of the horizontal ring frame close to the front cover is adhesively connected to the end surface of the front cover through a second adhesive layer, and the vertical ring frame is adhesively connected to the front cover through a third adhesive layer.

[0009] Furthermore, an outer wall of the front cover is provided with a mounting groove, and the partial area of ​​the abutting ring frame is located in the mounting groove.

[0010] Furthermore, the wall surface of the installation groove is a step structure, and the cross section of the first adhesive layer is in a step shape.

[0011] Furthermore, the outer wall surface of the vertical ring frame and the inner wall surface of the front cover are adhesively connected through the third adhesive layer.

[0012] Furthermore, the inner wall surface of the front cover is provided with a receiving groove for accommodating at least a partial area of ​​the vertical ring frame.

[0013] Furthermore, an end surface of one end of the vertical ring frame away from the horizontal ring frame is covered with the third adhesive layer.

[0014] Furthermore, a slot is provided on the end surface of the front cover, the vertical ring frame is inserted into the slot, and the slot is not connected to the inner wall surface of the front cover.

[0015] Furthermore, the inner wall surface and the outer wall surface of the vertical ring frame are both covered with the third adhesive layer.

[0016] Furthermore, an end surface of one end of the vertical ring frame away from the horizontal ring frame is covered with the third adhesive layer.

[0017] The beneficial effects of the utility model are as follows: the sound unit has a novel structure, and the waterproof rubber ring has a vertical ring frame and a horizontal ring frame, which greatly increases the adhesive area between the waterproof rubber ring and the front cover, improves the bonding force between the waterproof rubber ring and the front cover, and effectively improves the phenomenon that the waterproof rubber ring and the front cover are easily separated during the interference fit between the sound unit and the external shell, which is beneficial to ensuring the structural stability and waterproof performance of the whole product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of assembling an existing sound unit and an external housing;

[0019] Figure 2 It is a cross-sectional view of a part of the structure of the sound-emitting unit of the first embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the waterproof rubber ring in the sound unit of the first embodiment of the utility model;

[0021] Figure 4 It is a cross-sectional view of a part of the structure of the sound-emitting unit of the second embodiment of the present invention.

[0022] Description of labels:

[0023] 1. Front cover; 11. Mounting slot; 12. Slot;

[0024] 2. Waterproof rubber ring; 21. Vertical ring frame; 22. Horizontal ring frame; 23. Resistance ring frame; 231. Resistance convex part;

[0025] 3. Basin rack;

[0026] 4. Diaphragm assembly;

[0027] 51, first adhesive layer; 52, second adhesive layer; 53, third adhesive layer

[0028] 10. External shell. DETAILED DESCRIPTION

[0029] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0030] Please refer to Figures 2 to 4 , sound unit, including:

[0031] Front cover 1;

[0032] The waterproof rubber ring 2 includes a vertical ring frame 21, a horizontal ring frame 22 and a contact ring frame 23 which are sequentially connected from the inside to the outside. The contact ring frame 23 has a contact convex portion 231 protruding outward. The vertical ring frame 21 and the contact ring frame 23 are located on the same side of the horizontal ring frame 22;

[0033] The abutting ring frame 23 is sleeved on the outer wall of the front cover 1 and is adhesively connected to the front cover 1 through a first adhesive layer 51 , the side surface of the horizontal ring frame 22 close to the front cover 1 is adhesively connected to the end surface of the front cover 1 through a second adhesive layer 52 , and the vertical ring frame 21 is adhesively connected to the front cover 1 through a third adhesive layer 53 .

[0034] From the above description, it can be seen that the beneficial effects of the utility model are: the sound unit has a novel structure, and the waterproof rubber ring 2 has a vertical ring frame 21 and a horizontal ring frame 22, which greatly increases the bonding area between the waterproof rubber ring 2 and the front cover 1, improves the bonding force between the waterproof rubber ring 2 and the front cover 1, and effectively improves the phenomenon that the waterproof rubber ring 2 and the front cover 1 are easily separated during the interference assembly process between the sound unit and the external shell, which is beneficial to ensure the structural stability and waterproof performance of the whole product.

[0035] Furthermore, a mounting groove 11 is provided on the outer wall of the front cover 1 , and a partial area of ​​the abutting ring frame 23 is located in the mounting groove 11 .

[0036] It can be seen from the above description that the provision of the mounting groove 11 is conducive to reducing the overall size of the sound unit, so that the sound unit remains small.

[0037] Furthermore, the wall surface of the installation groove 11 is a step structure, and the cross section of the first adhesive layer 51 is in a step shape.

[0038] It can be seen from the above description that the stepped first adhesive layer 51 can enable the abutting ring frame 23 and the front cover 1 to be bonded and fixed more stably.

[0039] Furthermore, the outer wall surface of the vertical ring frame 21 and the inner wall surface of the front cover 1 are adhesively connected through the third adhesive layer 53 .

[0040] It can be seen from the above description that the waterproof rubber ring 2 and the front cover 1 are easy to assemble.

[0041] Furthermore, the inner wall surface of the front cover 1 is provided with a receiving groove for accommodating at least a part of the vertical ring frame 21 .

[0042] It can be seen from the above description that the existence of the receiving groove can facilitate the positioning and installation of the vertical ring frame 21.

[0043] Furthermore, an end surface of the vertical ring frame 21 away from the horizontal ring frame 22 is covered with the third adhesive layer 53 .

[0044] It can be seen from the above description that the outer wall surface and the end surface of the vertical ring frame 21 are both bonded to the front cover 1 , which enables the vertical ring frame 21 and the front cover 1 to be bonded and fixed more stably.

[0045] Furthermore, a slot 12 is provided on the end surface of the front cover 1 , and the vertical ring frame 21 is inserted into the slot 12 . The slot 12 is not communicated with the inner wall surface of the front cover 1 .

[0046] It can be seen from the above description that the arrangement of the slot 12 facilitates the positioning and installation of the vertical ring frame 21 .

[0047] Furthermore, the inner wall surface and the outer wall surface of the vertical ring frame 21 are both covered with the third adhesive layer 53 .

[0048] It can be seen from the above description that both the outer wall surface and the inner wall surface of the vertical ring frame 21 are adhesively connected to the front cover 1, so that the vertical ring frame 21 and the front cover 1 can be more stably bonded and fixed.

[0049] Furthermore, an end surface of the vertical ring frame 21 away from the horizontal ring frame 22 is covered with the third adhesive layer 53 .

[0050] It can be seen from the above description that each surface area of ​​the vertical ring frame 21 is adhesively connected to the front cover 1, so that the vertical ring frame 21 and the front cover 1 can be more stably bonded and fixed.

[0051] Embodiment 1

[0052] Please refer to Figure 2 and Figure 3, Embodiment 1 of the present utility model is: a sound unit, comprising a main body, a front cover 1 connected to the main body and a waterproof rubber ring 2 installed on the front cover 1, the main body comprises a basin frame 3, a diaphragm assembly 4, a voice coil (not shown) and a magnetic circuit assembly (not shown), the diaphragm assembly 4 and the magnetic circuit assembly are respectively connected to the basin frame 3, the voice coil is located in the basin frame 3 and connected to the diaphragm assembly 4, the magnetic circuit assembly comprises a yoke and a central magnetic structure and a side magnetic structure respectively connected to the yoke, the central magnetic structure is located between at least one group of two side magnetic structures arranged oppositely, a magnetic gap is formed between the central magnetic structure and the side magnetic structure for the voice coil to move, and the front cover 1 is connected to the diaphragm assembly 4 and / or the basin frame 3.

[0053] The waterproof rubber ring 2 is an integral structure formed by integral injection molding, and the waterproof rubber ring 2 includes a vertical ring frame 21, a horizontal ring frame 22 and a contact ring frame 23 which are sequentially connected from the inside to the outside, and the contact ring frame 23 has a contact convex portion 231 protruding toward the outside, and the contact convex portion 231 is used for interference fit with the inner wall surface of the external shell to achieve waterproof sealing, and the vertical ring frame 21 and the contact ring frame 23 are located on the same side of the horizontal ring frame 22; the contact ring frame 23 is sleeved on the outer wall of the front cover 1 and is adhesively connected to the front cover 1 through a first adhesive layer 51, and the side of the horizontal ring frame 22 close to the front cover 1 is adhesively connected to the end face of the front cover 1 through a second adhesive layer 52, and the vertical ring frame 21 is adhesively connected to the front cover 1 through a third adhesive layer 53, and the external shell can be the shell of an electronic device such as a mobile phone, a watch, or the shell of a sound module.

[0054] Optionally, the outer wall of the front cover 1 is provided with a mounting groove 11, and a partial area of ​​the abutting ring frame 23 is located in the mounting groove 11. Preferably, the wall surface of the mounting groove 11 is a step structure, and the cross section of the first adhesive layer 51 is a step shape, which can increase the adhesive area between the abutting ring frame 23 and the front cover 1, thereby improving the stability of the connection between the two.

[0055] In this embodiment, the outer wall surface of the vertical ring frame 21 and the inner wall surface of the front cover 1 are adhesively connected through the third adhesive layer 53 .

[0056] Optionally, the inner wall surface of the front cover 1 is provided with a receiving groove for accommodating at least a part of the vertical ring frame 21. Preferably, the end surface of the vertical ring frame 21 away from the horizontal ring frame 22 is covered with the third adhesive layer 53, that is, the end surface of the vertical ring frame 21 away from the horizontal ring frame 22 is also bonded to the front cover 1, which is conducive to increasing the bonding area between the vertical ring frame 21 and the front cover 1.

[0057] Embodiment 2

[0058] Please refer to Figure 4The second embodiment of the present invention is a parallel technical solution of the first embodiment, and is different from the first embodiment in that the connection position between the vertical ring frame 21 and the front cover 1 is different.

[0059] In this embodiment, a slot 12 is provided on the end surface of the front cover 1 , and the vertical ring frame 21 is inserted into the slot 12 . The slot 12 is not communicated with the inner wall surface of the front cover 1 .

[0060] Specifically, the inner wall surface and the outer wall surface of the vertical ring frame 21 are both covered with the third adhesive layer 53 , which can increase the adhesive area between the waterproof rubber ring 2 and the front cover 1 to a greater extent.

[0061] Preferably, the end surface of the vertical ring frame 21 away from the horizontal ring frame 22 is covered with the third adhesive layer 53, that is, the end surface of the vertical ring frame 21 away from the horizontal ring frame 22 is adhesively connected to the bottom surface of the slot 12. In other words, the vertical ring frame 21 is preferably covered by the third adhesive layer 53.

[0062] To sum up, the sound unit provided by the utility model has a novel structure, and the waterproof rubber ring has a vertical ring frame and a horizontal ring frame, which greatly increases the bonding area between the waterproof rubber ring and the front cover, improves the bonding force between the waterproof rubber ring and the front cover, and effectively improves the phenomenon that the waterproof rubber ring and the front cover are easily separated during the interference fit assembly of the sound unit with the external shell, which is beneficial to ensuring the structural stability and waterproof performance of the whole product.

[0063] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A sound generating unit, characterized in that: include Front cover; A waterproof rubber ring, the waterproof rubber ring comprising a vertical ring frame, a horizontal ring frame and a contact ring frame which are sequentially connected from the inside to the outside, the contact ring frame having a contact convex portion protruding outward, and the vertical ring frame and the contact ring frame are located on the same side of the horizontal ring frame; The abutting ring frame is sleeved on the outer wall of the front cover and is adhesively connected to the front cover through a first adhesive layer, the side surface of the horizontal ring frame close to the front cover is adhesively connected to the end surface of the front cover through a second adhesive layer, and the vertical ring frame is adhesively connected to the front cover through a third adhesive layer.

2. The sound generating unit according to claim 1, characterized in that: The outer wall of the front cover is provided with a mounting groove, and the partial area of ​​the abutting ring frame is located in the mounting groove.

3. The sound generating unit according to claim 2, characterized in that: The wall surface of the installation groove is a step structure, and the cross section of the first adhesive layer is a step shape.

4. The sound generating unit according to claim 1, characterized in that: The outer wall surface of the vertical ring frame is adhesively connected to the inner wall surface of the front cover through the third adhesive layer.

5. The sound generating unit according to claim 4, characterized in that: The inner wall surface of the front cover is provided with a receiving groove for accommodating at least a part of the vertical ring frame.

6. The sound generating unit according to claim 5, characterized in that: The end surface of the vertical ring frame away from the horizontal ring frame is covered with the third adhesive layer.

7. The sound generating unit according to claim 1, characterized in that: A slot is provided on the end surface of the front cover, the vertical ring frame is inserted into the slot, and the slot is not communicated with the inner wall surface of the front cover.

8. The sound generating unit according to claim 7, characterized in that: The inner wall surface and the outer wall surface of the vertical ring frame are both covered with the third adhesive layer.

9. The sound generating unit according to claim 7, characterized in that: The end surface of the vertical ring frame away from the horizontal ring frame is covered with the third adhesive layer.

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