Waterproof loudspeaker

Abstract

The utility model discloses a waterproof loudspeaker which comprises a yoke and an assembly structure, and the yoke is provided with a through hole. Component structures are arranged on the two sides of the yoke respectively, each component structure comprises a central magnetic structure, a side magnetic structure, a frame, a diaphragm component and a waterproof breathable film, the central magnetic structure is arranged on the yoke and corresponds to the through hole, and the central magnetic structure comprises lower magnetic steel, a central washer and upper magnetic steel which are sequentially stacked and connected; the side, away from the yoke, of the center magnetic structure is provided with an air hole communicating with the through hole. The side magnetic structure is arranged on the yoke, and a magnetic gap communicated with the through hole is formed between the side magnetic structure and the central magnetic structure; the basin frame is connected with the edge magnetic structure; the whole diaphragm assembly is in an annular frame shape, the inner edge of the diaphragm assembly is connected with the upper magnetic steel, and the outer edge of the diaphragm assembly is connected with the basin stand. The waterproof breathable film is arranged at the communication position of the through hole and the breathable hole to shield the breathable hole. The waterproof loudspeaker is novel in structure and can balance air pressure on the inner side and the outer side of the vibrating diaphragm assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of electroacoustic transducers, and particularly relates to a waterproof loudspeaker. Background Art

[0002] With the continuous upgrading of portable electronic products such as mobile phones, smart watches, and tablet computers, the performance requirements for portable electronic products are getting higher and higher. Portable electronic products have developed from life waterproof to require IP68-level or even higher-level waterproof requirements.

[0003] Due to the absence of a waterproof breathable membrane, when the traditional waterproof loudspeaker is subjected to a large water pressure impact, the diaphragm assembly is prone to sink. When the waterproof loudspeaker leaves the water surface, it is difficult to rebound to the original design position, resulting in a deterioration of the acoustic performance of the waterproof loudspeaker and even permanent damage. Summary of the Utility Model

[0004] The technical problem solved by the utility model is to provide a waterproof loudspeaker with a new structure, in which the air pressure inside and outside the diaphragm assembly is balanced.

[0005] To solve the above technical problem, the technical solution adopted by the utility model is: a waterproof loudspeaker, comprising:

[0006] A yoke, on which a through hole is provided;

[0007] A component structure, the component structure is respectively provided on both sides of the yoke, and the component structure includes

[0008] A central magnetic structure, the central magnetic structure is arranged on the yoke and corresponds to the through hole. The central magnetic structure includes a lower magnetic steel, a central washer and an upper magnetic steel stacked and connected in sequence. An air vent communicating with the through hole is provided on the side of the central magnetic structure away from the yoke;

[0009] A side magnetic structure, the side magnetic structure is arranged on the yoke, and a magnetic gap communicating with the through hole is formed between the side magnetic structure and the central magnetic structure;

[0010] A chassis, the chassis is connected to the side magnetic structure;

[0011] A diaphragm assembly, the diaphragm assembly is integrally in a ring frame shape, the inner edge of the diaphragm assembly is connected to the upper magnetic steel, and the outer edge of the diaphragm assembly is connected to the chassis;

[0012] A waterproof breathable membrane, the waterproof breathable membrane is arranged at the communication part of the through hole and the air vent to shield the air vent.

[0013] In one embodiment, the connection part of the air vent hole and the through hole is located in the middle of the through hole, and the air vent hole is arranged in the middle of the central magnetic structure.

[0014] In one embodiment, a receiving groove for receiving the waterproof breathable film is provided on the surface of the yoke, and the receiving groove communicates with the through hole.

[0015] In one embodiment, one side of the side magnetic structure connecting the yoke abuts against the waterproof breathable film.

[0016] In one embodiment, the side magnetic structure is adhesively connected to the waterproof breathable film.

[0017] In one embodiment, the waterproof breathable film is fixedly installed on the side of the lower magnet away from the central washer, and the waterproof breathable film is located in the through hole.

[0018] In one embodiment, the upper magnet includes a lower magnet and an upper magnet connected together. The lower magnet is connected to the side of the central washer away from the yoke. The outer peripheral edge of the lower magnet protrudes relative to the outer peripheral edge of the upper magnet. The edge area of the top surface of the lower magnet is the first bonding area fixedly connected to the diaphragm assembly.

[0019] In one embodiment, the outer peripheral wall of the upper magnet is the second bonding area fixedly connected to the diaphragm assembly.

[0020] In one embodiment, the upper magnet and the lower magnet are an integrally formed one-piece structure, or the upper magnet and the lower magnet are adhesively connected.

[0021] In one embodiment, the diaphragm assembly includes a first diaphragm, a skeleton and a second diaphragm connected in sequence from inside to outside. The second diaphragm is connected to the chassis. The first diaphragm has an inner folding ring portion, and the inner folding ring portion protrudes away from the yoke.

[0022] The beneficial effects of the present utility model are as follows:

[0023] The structure of this waterproof speaker is novel and can realize double-sided sound emission. When the waterproof speaker leaves the water surface and the surface moisture dries, the cooperation of the waterproof breathable film, the air vent hole and the through hole can effectively balance the air pressure inside and outside the diaphragm assembly of the waterproof speaker, so that the diaphragm assembly returns to its original designed position, which is beneficial to improving the problem that the performance of the waterproof speaker deteriorates after passing through water, and prolongs the service life of the waterproof speaker.

[0024] When the waterproof speaker is working, the high-temperature air inside it can be conducted to the outside through the waterproof breathable film, improving the heat dissipation effect of the waterproof speaker and enhancing the reliability of the waterproof speaker. Description of the Drawings

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0026] Figure 1 It is a cross-sectional view of the waterproof speaker according to the first embodiment of the present invention;

[0027] Figure 2 It is a cross-sectional view of the waterproof speaker according to the second embodiment of the present invention.

[0028] Explanation of the reference numerals in the drawings:

[0029] 1. Yoke; 11. Through hole; 12. Accommodating groove;

[0030] 2. Component structure;

[0031] 3. Central magnetic structure; 31. Lower magnet; 32. Central washer; 33. Upper magnet; 331. Lower sub-magnet; 332. Upper sub-magnet; 34. Vent hole; 35. Magnetic gap;

[0032] 4. Edge magnetic structure; 41. Edge magnet; 42. Edge washer;

[0033] 5. Spider;

[0034] 6. Diaphragm assembly; 61. First diaphragm; 62. Skeleton; 63. Second diaphragm;

[0035] 7. Voice coil;

[0036] 8. Waterproof and breathable membrane. Detailed implementation manners

[0037] The realization of the object, functional features and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the drawings.

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0039] It should be noted that if there are directional indications in the embodiments of the present utility model, such as up, down, left, right, front, back..., the directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture as shown in the drawings. If the specific posture changes, the directional indications will also change accordingly.

[0040] In addition, if there are descriptions such as "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature.

[0041] In addition, the meaning of "and / or" that appears throughout the text is that it includes three parallel scenarios. Taking "and / or" as an example, it includes scenario A, or scenario B, or the scenario where both are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or is unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0042] In this application, unless otherwise clearly specified and defined, terms such as "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] Embodiment 1

[0044] Please refer to Figure 1, Embodiment 1 of the present utility model is: a waterproof loudspeaker, which includes a yoke 1 and a component structure 2. A through hole 11 is provided on the yoke 1, and the component structure 2 is respectively provided on both sides of the yoke 1. The component structure 2 includes a central magnetic structure 3, a side magnetic structure 4, a chassis 5, a diaphragm assembly 6, a voice coil 7, and a waterproof breathable film 8. The central magnetic structure 3 is provided on the yoke 1 and corresponds to the through hole 11. The central magnetic structure 3 includes a lower magnetic steel 31, a central washer 32, and an upper magnetic steel 33 that are stacked and connected in sequence. An air vent 34 communicating with the through hole 11 is provided on the side of the central magnetic structure 3 away from the yoke 1; the side magnetic structure 4 is provided on the yoke 1, and a magnetic gap 35 communicating with the through hole 11 is formed between the side magnetic structure 4 and the central magnetic structure 3; the chassis 5 is connected to the side magnetic structure 4. The diaphragm assembly 6 is integrally in a ring frame shape. The inner edge of the diaphragm assembly 6 is connected to the upper magnetic steel 33, and the outer edge of the diaphragm assembly 6 is connected to the chassis 5; the waterproof breathable film 8 is provided at the communication part of the through hole 11 and the air vent 34 to shield the air vent 34. In this embodiment, the through hole 11 is in a shape of a straight line.

[0045] The communication part of the air vent 34 and the through hole 11 is located in the middle of the through hole 11, and the air vent 34 is provided in the middle of the central magnetic structure 3. That is to say, both ends of the through hole 11 can be simultaneously communicated with the magnetic gap 35 in the same component structure 2. Specifically, the length direction of the through hole 11 is consistent with the width direction of the central magnetic structure 3. In this way, when the waterproof loudspeaker works, the pressure received by each area of the diaphragm assembly 6 is more balanced, thereby improving the performance of the waterproof loudspeaker.

[0046] A receiving groove 12 for receiving the waterproof breathable film 8 is provided on the surface of the yoke 1, and the receiving groove 12 communicates with the through hole 11. To improve the installation stability of the waterproof breathable film 8, in this embodiment, the side of the side magnetic structure 4 connected to the yoke 1 abuts against the waterproof breathable film 8. Preferably, the side magnetic structure 4 is adhesively connected to the waterproof breathable film 8.

[0047] In other embodiments, it is also possible that the receiving groove 12 is provided on the side of the lower magnetic steel 31 away from the diaphragm assembly 6. In this way, the area of the waterproof breathable film 8 can also be reduced, thereby saving the manufacturing consumable cost of the waterproof breathable film 8.

[0048] The side magnetic structure 4 includes a side magnetic steel 41 and a side washer 42. The side washer 42 is fixedly connected to the chassis 5. The side magnetic steel 41 connects the side washer 42 and the yoke 1. The side of the side magnetic steel 41 away from the side washer 42 abuts against the waterproof breathable film 8 and is adhesively connected to the waterproof breathable film 8.

[0049] Optionally, the upper magnet 33 includes a lower magnet 331 and an upper magnet 332 connected to each other. The lower magnet 331 is connected to a side of the central washer 32 away from the yoke 1. The outer peripheral edge of the lower magnet 331 protrudes relative to the outer peripheral edge of the upper magnet 332. An edge area of the top surface of the lower magnet 331 is a first bonding area fixedly connected to the diaphragm assembly 6. That is, when looking at the upper magnet 33 straight on in the direction towards the yoke 1, the top surface of the lower magnet 331 forms a first bonding area surrounding the upper magnet 332.

[0050] To improve the connection stability between the upper magnet 33 and the diaphragm assembly 6, an outer peripheral wall of the upper magnet 332 is a second bonding area fixedly connected to the diaphragm assembly 6.

[0051] In one embodiment, the upper magnet 332 and the lower magnet 331 are an integrally formed one-piece structure. In this embodiment, the upper magnet 332 and the lower magnet 331 are adhesively connected.

[0052] The number of the air vents 34 on the central magnetic structure 3 is one or more. To improve the air permeability efficiency, preferably, the number of the air vents 34 on the central magnetic structure 3 is multiple. The multiple air vents 34 are arranged at intervals along the central axis in the length direction of the central magnetic structure 3. In this embodiment, the number of the air vents 34 on the central magnetic structure 3 is two. When the number of the air vents 34 is multiple, at this time, a single waterproof breathable membrane 8 blocks one or more of the air vents 34.

[0053] In this embodiment, the diaphragm assembly 6 includes a first diaphragm 61, a skeleton 62, and a second diaphragm 63 connected to each other in sequence from the inside out. The second diaphragm 63 is connected to the chassis 5. The skeleton 62 is connected to the voice coil 7. The voice coil 7 is arranged corresponding to the magnetic gap 35. An inner edge of the first diaphragm 61 is connected to the upper magnet 33. The first diaphragm 61 has an inner folded ring portion that protrudes in a direction away from the yoke 1, so that the overall volume of the central magnetic structure 3 can be allowed to be set larger, thereby improving the performance of the waterproof speaker.

[0054] Embodiment Two

[0055] Please refer to Figure 2 , Embodiment Two of the present utility model is an alternative technical solution to Embodiment One. The difference from Embodiment One lies in: the installation position of the waterproof breathable membrane 8 is different.

[0056] In this embodiment, the waterproof breathable membrane 8 is fixedly installed on a side of the lower magnet 31 away from the central washer 32. The waterproof breathable membrane 8 is located within the through hole 11. This can also reduce the area of the waterproof breathable membrane 8, thereby saving the manufacturing material cost of the waterproof breathable membrane 8.

[0057] The above are only optional embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A waterproof speaker, characterized in that: including a yoke, on which a through hole is provided; a component structure, the component structure is provided on both sides of the yoke respectively, and the component structure includes a central magnetic structure, the central magnetic structure is provided on the yoke and corresponds to the through hole, the central magnetic structure includes a lower magnetic steel, a central washer and an upper magnetic steel stacked and connected in sequence, and a vent hole communicating with the through hole is provided on the side of the central magnetic structure away from the yoke; a side magnetic structure, the side magnetic structure is provided on the yoke, and a magnetic gap communicating with the through hole is formed between the side magnetic structure and the central magnetic structure; a chassis, the chassis connecting the side magnetic structure; a diaphragm assembly, the diaphragm assembly is integrally in a ring frame shape, the inner edge of the diaphragm assembly is connected to the upper magnetic steel, and the outer edge of the diaphragm assembly is connected to the chassis; a waterproof and breathable membrane, the waterproof and breathable membrane is provided at the communication part of the through hole and the vent hole to shield the vent hole.

2. The waterproof speaker according to claim 1, wherein: The communication part of the vent hole and the through hole is located in the middle of the through hole, and the vent hole is provided in the middle of the central magnetic structure.

3. The waterproof speaker according to claim 1, wherein: A receiving groove for receiving the waterproof and breathable membrane is provided on the surface of the yoke, and the receiving groove communicates with the through hole.

4. The waterproof speaker according to claim 3, wherein: The side of the side magnetic structure connecting the yoke abuts against the waterproof and breathable membrane.

5. The waterproof speaker according to claim 4, wherein: The side magnetic structure is adhesively connected to the waterproof and breathable membrane.

6. The waterproof speaker according to claim 1, wherein: The waterproof and breathable membrane is fixedly installed on the side of the lower magnetic steel away from the central washer, and the waterproof and breathable membrane is located in the through hole.

7. The waterproof speaker according to claim 1, wherein: The upper magnetic steel includes a connected lower magnetic steel and an upper magnetic steel, the lower magnetic steel is connected to the side of the central washer away from the yoke, the outer peripheral edge of the lower magnetic steel protrudes relative to the outer peripheral edge of the upper magnetic steel, and the edge area of the top surface of the lower magnetic steel is a first bonding area fixedly connected to the diaphragm assembly.

8. The waterproof speaker according to claim 7, wherein: The outer peripheral wall of the upper magnetic steel is a second bonding area fixedly connected to the diaphragm assembly.

9. The waterproof speaker according to claim 7, characterized in that: The upper magnetic steel and the lower magnetic steel are of an integrally formed integral structure, or the upper magnetic steel and the lower magnetic steel are adhesively connected.

10. The waterproof speaker according to claim 1, wherein: The diaphragm assembly includes a first diaphragm, a skeleton and a second diaphragm connected in sequence from inside to outside, the second diaphragm is connected to the chassis, and the first diaphragm has an inner folding ring part, and the inner folding ring part protrudes in a direction away from the yoke.

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