Sound production unit

Abstract

The utility model discloses a sounding unit which comprises a vibrating diaphragm assembly and a waterproof breathable film, and the vibrating diaphragm assembly is provided with a leakage hole. And the plurality of waterproof breathable films are connected with the vibrating diaphragm assembly and cover the leakage holes. In the sound production unit, the number of the waterproof breathable films for sealing the leakage holes is multiple, in the production and assembly process of the sound production unit, when the waterproof breathable films are contacted and collided, only the waterproof breathable film located on the outermost layer is damaged, and the waterproof breathable film located on the inner layer is not damaged, so that the sound production unit is not damaged. And the sound production unit still keeps a good waterproof effect. Due to the fact that the multiple waterproof breathable films are arranged, the waterproof effect of the sound production unit can be effectively improved, even if the waterproof breathable film located on the outermost layer is damaged and the waterproof effect of the damaged waterproof breathable film is reduced, a certain blocking effect can still be achieved, the water pressure of the lower layer is relieved, and then the waterproof allowance is improved; and the waterproof performance of the sounding unit is fully guaranteed.

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] In order to achieve superior high-frequency acoustic characteristics, the diaphragm assembly of the sound unit must have sufficient rigidity and toughness to withstand violent reciprocating motion. However, during the vibration process, the diaphragm assembly is prone to excessive pressure difference between the inside and outside.

[0003] In related technologies, in order to balance the pressure difference between the internal space and the outside world during the operation of the sound unit, it is often necessary to set a leakage hole on the diaphragm assembly to connect the internal space of the speaker with the outside world, and also to set a waterproof breathable membrane assembly to cover the leakage hole to achieve the purpose of waterproofing. However, during the production and assembly process, there are situations such as contact and collision of the waterproof breathable membrane assembly (for example, to better fix the waterproof breathable membrane assembly, it will be pressed together). Such contact and collision may sometimes cause damage to the waterproof breathable membrane, thereby reducing or even failing the waterproof effect of the sound unit and affecting the waterproof performance of the sound unit. Utility Model Content

[0004] The technical problem solved by the utility model is to provide a sound-generating unit with guaranteed waterproof performance.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a sound-generating unit, comprising:

[0006] A diaphragm assembly, wherein the diaphragm assembly is provided with a leakage hole;

[0007] A waterproof and breathable membrane, wherein the number of the waterproof and breathable membranes is multiple, and the waterproof and breathable membranes are connected to the diaphragm assembly and cover the leakage hole.

[0008] In one embodiment, a plurality of the waterproof breathable membranes are stacked to form a waterproof breathable assembly, the waterproof breathable assembly is fixed on the diaphragm assembly and covers the leakage hole, and two adjacent waterproof breathable membranes in the waterproof breathable assembly are connected by a ring-shaped colloid.

[0009] In one embodiment, the number of the waterproof breathable membranes in the waterproof breathable assembly is two, three or four.

[0010] In one embodiment, the waterproof and breathable component is located outside the diaphragm component.

[0011] In one embodiment, the waterproof breathable membrane is provided on two opposite sides of the diaphragm assembly.

[0012] In one embodiment, the diaphragm assembly includes a sound membrane and a dome, the sound membrane includes an inner fixed part, a deformation part and an outer fixed part connected in sequence from the inside to the outside, the inner fixed part is provided with a window, the dome is connected to the inner fixed part and closes the window, the leakage hole is provided on the dome, and the waterproof and breathable membrane is connected to the dome.

[0013] In one embodiment, the ball top is connected to the inner side of the inner fixing portion.

[0014] In one embodiment, the sound membrane also includes a lower fixing portion arranged around the dome, the cross-section of the lower fixing portion is L-shaped, the lower fixing portion is connected to the inner fixing portion and forms an embedding groove, the edge of the dome is embedded in the embedding groove, and the lower fixing portion is connected to the dome.

[0015] In one embodiment, the diaphragm assembly includes a sound membrane, the leakage hole is provided on the sound membrane, and the waterproof breathable membrane is connected to the sound membrane.

[0016] The beneficial effect of the present invention is that: in the sound unit, there are multiple waterproof breathable membranes that seal the leakage holes. During the production and assembly process of the sound unit, when the waterproof breathable membrane is touched or collided, only the waterproof breathable membrane on the outermost layer is damaged, and the waterproof breathable membrane on the inner layer will not be damaged. Therefore, the sound unit will still maintain a good waterproof effect.

[0017] At the same time, due to the provision of multiple waterproof and breathable membranes, the waterproof effect of the sound unit can be effectively improved. Even if the waterproof and breathable membrane on the outermost layer is damaged, the waterproof effect of the damaged waterproof and breathable membrane is reduced, but it can still play a certain blocking role, thereby alleviating the water pressure of the lower layer, and then increasing the waterproof margin, so that the waterproof performance of the sound unit is fully guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0019] Figure 1 This is a cross-sectional view of the sound unit of the first embodiment of the present invention;

[0020] Figure 2 This is an exploded view of the waterproof and breathable component in the sound unit of the first embodiment of the present utility model;

[0021] Figure 3This is a cross-sectional view of another structure of a sound-emitting unit according to the first embodiment of the present invention;

[0022] Figure 4 This is a cross-sectional view of the sound unit of the second embodiment of the present invention.

[0023] Description of Figure Numbers:

[0024] 1. Basin rack;

[0025] 2. Diaphragm assembly; 21. Leakage hole; 22. Sound diaphragm; 221. Inner fixing portion; 222. Deformation portion; 223. Outer fixing portion; 224. Lower fixing portion; 23. Dome;

[0026] 3. Waterproof and breathable membrane;

[0027] 4. Voice coil;

[0028] 5. Magnetic circuit components;

[0029] 6. Ring frame colloid;

[0030] 7. Front cover. DETAILED DESCRIPTION

[0031] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments.

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, if the embodiments of the present invention include descriptions of "first," "second," etc., such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of such features.

[0035] In addition, if the word "and / or" appears throughout the text, it means that three parallel solutions are included. For example, "and / or" includes solutions, or solutions, or solutions that meet all of the requirements simultaneously. In addition, the technical solutions of various embodiments may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. If the combination of technical solutions is mutually contradictory or cannot be implemented, it shall be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0036] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0037] Example 1

[0038] Please refer to Figures 1 to 3 , embodiment 1 of the present invention is: a sound unit, including a basin 1, a diaphragm assembly 2, a waterproof breathable membrane 3, a voice coil 4 and a magnetic circuit assembly 5, the diaphragm assembly 2 and the magnetic circuit assembly 5 are respectively connected to the basin 1, the magnetic circuit assembly 5 has a magnetic gap for the voice coil 4 to move, the diaphragm assembly 2 is connected to the voice coil 4, and a leakage hole 21 is provided on the diaphragm assembly 2; the number of the waterproof breathable membrane 3 is plural, the waterproof breathable membrane 3 is connected to the diaphragm assembly 2 and covers the leakage hole 21, thereby preventing external water vapor from entering the sound unit through the leakage hole 21, but the gas inside the sound unit can be exchanged with the outside through the leakage hole 21.

[0039] In this embodiment, the diaphragm assembly 2 includes a sound membrane 22 and a dome 23. The sound membrane 22 includes an inner fixed portion 221, a deformation portion 222 and an outer fixed portion 223 connected in sequence from the inside to the outside. A window is provided on the inner fixed portion 221. The dome 23 is connected to the inner fixed portion 221 and closes the window. The leakage hole 21 is provided on the dome 23. The waterproof and breathable membrane 3 is connected to the dome 23.

[0040] In some embodiments, the dome 23 is connected to the inner side of the inner fixing portion 221. To ensure the stability of the connection between the diaphragm 22 and the dome 23, the diaphragm 22 optionally further includes a lower fixing portion 224 disposed around the dome 23. The cross-section of the lower fixing portion 224 is L-shaped. The lower fixing portion 224 is connected to the inner fixing portion 221 and forms an embedding groove. The edge of the dome 23 is embedded in the embedding groove, and the lower fixing portion 224 is connected to the dome 23. It is easy to understand that the inner fixing portion 221 and the lower fixing portion 224 are an integrally formed structure. For example, the diaphragm 22 is an integrally formed structure.

[0041] Of course, in other embodiments, it is also possible that the diaphragm assembly 2 only includes the sound membrane 22 without the dome 23. In this case, the leakage hole 21 is provided on the sound membrane 22, and the waterproof and breathable membrane 3 is connected to the sound membrane 22.

[0042] In this embodiment, a plurality of the waterproof breathable membranes 3 are stacked to form a waterproof breathable assembly. The waterproof breathable assembly is fixed to the diaphragm assembly 2 and covers the leakage hole 21. Two adjacent waterproof breathable membranes 3 in the waterproof breathable assembly are connected by a ring-shaped colloid 6. The ring-shaped colloid 6 can be formed by solidifying liquid glue or adhesive. It is easy to understand that the side of the waterproof breathable assembly close to the diaphragm assembly 2 is bonded and fixed to the diaphragm assembly 2 by adhesive or waterproof glue. In this embodiment, in the waterproof breathable assembly, the waterproof breathable membrane 3 closest to the dome 23 is bonded and fixed to the dome 23.

[0043] The number of the waterproof breathable membranes 3 in the waterproof breathable assembly is two (eg Figure 1 As shown), three (as Figure 3 As shown), four or more, that is, the specific number of the waterproof breathable membranes 3 in the waterproof breathable assembly can be set as needed.

[0044] Preferably, the waterproof and breathable component is located outside the diaphragm component 2, so that the waterproof and breathable component can avoid occupying the internal space of the sound unit and ensure that the sound unit can achieve a large amplitude.

[0045] Optionally, the sound unit further includes a front cover 7 connected to the basin frame 1. In this embodiment, the outer fixing portion 223 of the sound membrane 22 is fixedly connected to the front cover 7. At this time, the sound membrane 22 is indirectly connected to the basin frame 1 through the front cover 7.

[0046] Example 2

[0047] Please combine 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 a waterproof breathable membrane 3 is provided on opposite sides of the diaphragm assembly 2 .

[0048] The above are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the practical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A sound unit, characterized in that: include A diaphragm assembly, wherein the diaphragm assembly is provided with a leakage hole; A waterproof breathable membrane, wherein the number of the waterproof breathable membranes is multiple, and the waterproof breathable membranes are connected to the diaphragm assembly and cover the leakage hole; A plurality of the waterproof breathable membranes are stacked to form a waterproof breathable assembly, which is fixed on the diaphragm assembly and covers the leakage hole. Two adjacent waterproof breathable membranes in the waterproof breathable assembly are connected via a ring-shaped colloid.

2. The sound unit according to claim 1, characterized in that: The number of the waterproof breathable membranes in the waterproof breathable assembly is two, three or four.

3. The sound unit according to claim 1, wherein: The waterproof and breathable component is located outside the diaphragm component.

4. The sound unit according to claim 1, wherein: The waterproof and breathable membranes are respectively provided on two opposite sides of the diaphragm assembly.

5. The sound unit according to claim 1, characterized in that: The diaphragm assembly includes a sound membrane and a dome, the sound membrane includes an inner fixed part, a deformation part and an outer fixed part connected in sequence from the inside to the outside, the inner fixed part is provided with a window, the dome is connected to the inner fixed part and closes the window, the leakage hole is provided on the dome, and the waterproof and breathable membrane is connected to the dome.

6. The sound unit according to claim 5, characterized in that: The ball top is connected to the inner side of the inner fixing portion.

7. The sound unit according to claim 6, characterized in that: The sound membrane also includes a lower fixing part arranged around the dome, the cross-section of the lower fixing part is L-shaped, the lower fixing part is connected to the inner fixing part and forms an embedding groove, the edge of the dome is embedded in the embedding groove, and the lower fixing part is connected to the dome.

8. The sound unit according to claim 1, characterized in that: The diaphragm assembly includes a sound membrane, the leakage hole is provided on the sound membrane, and the waterproof breathable membrane is connected to the sound membrane.

Images