Waterproof loudspeaker

Abstract

The waterproof loudspeaker comprises a central magnetic steel, side magnetic steels and an assembly structure, the side magnetic steels are respectively arranged at two sides of the central magnetic steel, and magnetic gaps are formed between the side magnetic steels and the central magnetic steel; the top and the bottom of the central magnetic steel are respectively provided with an assembly structure, each assembly structure comprises a washer plate, stacked magnetic steel, a waterproof breathable film, a diaphragm assembly, a basin stand and a side washer, the washer plate is fixedly connected with the central magnetic steel, one end of the washer plate is provided with a bent connecting part, and one side, far away from the central magnetic steel, of the washer plate is provided with a breathable groove communicated with a magnetic gap; the stacked magnetic steel is arranged on the side, away from the center magnetic steel, of the washer plate and covers the ventilation grooves, and ventilation holes communicated with the ventilation grooves are formed in the side, away from the center magnetic steel, of the stacked magnetic steel. The waterproof breathable film is arranged on the side, away from the center magnetic steel, of the stacked magnetic steel and covers the breathable hole. The whole vibrating diaphragm assembly is in an annular frame shape, and the vibrating diaphragm assembly is connected with the stacked magnetic steel. 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 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 designed position, resulting in a deterioration of the acoustic performance of the waterproof loudspeaker and even permanent damage. Content 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 central magnet;

[0007] Side magnets, the side magnets are respectively arranged on both sides of the central magnet, and a magnetic gap is formed between the side magnets and the central magnet;

[0008] A component structure, the component structure is respectively arranged on the top and bottom of the central magnet, and the component structure includes

[0009] A washer plate, the washer plate is fixedly connected to the central magnet, one end of the washer plate has a bent connecting portion, and an air vent groove communicating with the magnetic gap is arranged on the side of the washer plate away from the central magnet;

[0010] Stacked magnets, the stacked magnets are arranged on the side of the washer plate away from the central magnet, the stacked magnets cover the air vent groove, and air vent holes communicating with the air vent groove are arranged on the side of the stacked magnets away from the central magnet;

[0011] A waterproof breathable membrane, the waterproof breathable membrane is arranged on the side of the stacked magnets away from the central magnet and covers the air vent holes;

[0012] A diaphragm assembly, the diaphragm assembly is integrally in a ring frame shape, and the inner edge of the diaphragm assembly is connected to the stacked magnets;

[0013] A chassis, the chassis is connected to the outer edge of the diaphragm assembly and the bent connecting portion;

[0014] A side washer, the side washer connecting the side magnet to the chassis.

[0015] In one embodiment, the number of the ventilation holes in the component structure is one or more.

[0016] In one embodiment, a single waterproof and breathable film covers one or more of the ventilation holes.

[0017] In one embodiment, the ventilation groove is arranged along the width direction of the central magnet, and both ends of the ventilation groove communicate with the magnetic gap respectively.

[0018] In one embodiment, the communication part between the ventilation hole and the ventilation groove is at the middle part of the ventilation groove.

[0019] In one embodiment, the chassis in the two component structures are connected and fixed to each other.

[0020] In one embodiment, the bent connecting parts are respectively connected to the two chassis.

[0021] In one embodiment, the bent connecting part includes a vertical part, a first horizontal part, an inclined part and a second horizontal part which are connected in sequence. One end of the vertical part far from the first horizontal part is connected to the washer plate. The first horizontal part is located in the magnetic gap. The inclined part is located outside the magnetic gap. The second horizontal part is connected to the chassis. In the thickness direction of the waterproof speaker, in the component structure, the distance between the first horizontal part and the washer plate is greater than the distance between the second horizontal part and the washer plate.

[0022] In one embodiment, the stacked magnet includes a first magnet and a second magnet which are stacked and connected. The first magnet connects the washer plate and the second magnet. A step structure is formed at the interface between the first magnet and the second magnet. The inner edge of the diaphragm assembly is connected to the step structure.

[0023] In one embodiment, the diaphragm assembly includes a first diaphragm, a skeleton and a second diaphragm which are connected in sequence from inside to outside. The second diaphragm is connected to the chassis. The first diaphragm has an inner folding ring part which protrudes away from the central magnet.

[0024] The beneficial effects of the utility model are as follows:

[0025] This waterproof speaker has a novel structure. When the waterproof speaker leaves the water surface and the surface moisture dries, the cooperation of the waterproof breathable membrane, the ventilation holes and the ventilation grooves can effectively balance the air pressure inside and outside the diaphragm assembly of the waterproof speaker, enabling the diaphragm assembly to return to its original designed position, which is beneficial to improving the problem of the deteriorated performance of the waterproof speaker after passing through water and extending the service life of the waterproof speaker.

[0026] When the waterproof speaker is working, the high-temperature air inside it can be conducted to the outside through the waterproof breathable membrane, improving the heat dissipation effect of the waterproof speaker and enhancing the reliability of the waterproof speaker.

[0027] The waterproof breathable membrane is exposed, which facilitates the assembly and replacement of the waterproof breathable membrane. Description of the Drawings

[0028] In order 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.

[0029] Figure 1 Cross-section of the waterproof speaker according to Embodiment 1 of the present invention Figure 1 ;

[0030] Figure 2 Cross-section of the waterproof speaker according to Embodiment 1 of the present invention Figure 2 .

[0031] Explanation of the reference numerals in the drawings:

[0032] 1. Central magnet

[0033] 2. Edge magnet

[0034] 3. Component structure; 31. Washer plate; 311. Bent connection part; 312. Ventilation groove; 32. Stacked magnet; 321. Ventilation hole; 322. First magnet; 323. Second magnet; 324. Step structure; 33. Waterproof breathable membrane; 34. Diaphragm assembly; 341. First diaphragm; 342. Skeleton; 343. Second diaphragm; 35. Voice coil; 36. Speaker frame; 37. Edge washer

[0035] 4. Magnetic gap Detailed Embodiments

[0036] The realization of the purpose, the functional features and the advantages of the present invention will be further described in conjunction with the embodiments and with reference to the drawings.

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0038] It should be noted that if there are directional indications such as up, down, left, right, front, back... in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indications will also change accordingly.

[0039] 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 cannot 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.

[0040] In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "and / or" as an example, it includes the solution, or the solution, or the solution that satisfies both simultaneously. In addition, the technical solutions between the 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 cannot 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.

[0041] In this application, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "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 internal communication of 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.

[0042] Embodiment 1

[0043] Please refer to Figure 1 and Figure 2, Embodiment 1 of the present utility model is: a waterproof loudspeaker, including a central magnet 1, side magnets 2 and a component structure 3. The side magnets 2 are respectively arranged on both sides of the central magnet 1, and a magnetic gap 4 is formed between the side magnet 2 and the central magnet 1; the component structure 3 is respectively arranged on the top and bottom of the central magnet 1. The component structure 3 includes a washer plate 31, stacked magnets 32, a waterproof breathable film 33, a diaphragm assembly 34, a voice coil 35, a chassis 36 and a side washer 37. The washer plate 31 is fixedly connected to the central magnet 1. One end of the washer plate 31 has a bent connecting portion 311. An air vent groove 312 communicating with the magnetic gap 4 is arranged on the side of the washer plate 31 away from the central magnet 1; the stacked magnets 32 are arranged on the side of the washer plate 31 away from the central magnet 1. An air vent hole 321 communicating with the air vent groove 312 is arranged on the side of the stacked magnets 32 away from the central magnet 1. The stacked magnets 32 cover the air vent groove 312 to form an air vent channel communicating the magnetic gap 4 with the air vent hole 321; the waterproof breathable film 33 is arranged on the side of the stacked magnets 32 away from the central magnet 1 and covers the air vent hole 321; the diaphragm assembly 34 is connected to the voice coil 35 arranged corresponding to the magnetic gap 4. The diaphragm assembly 34 is integrally in a ring frame shape, and the inner edge of the diaphragm assembly 34 is connected to the stacked magnets 32; the chassis 36 is connected to the outer edge of the diaphragm assembly 34 and the bent connecting portion 311; the side washer 37 is connected to the side magnet 2 and the chassis 36.

[0044] The bent connecting portions 311 connected by the two washer plates 31 are arranged away from each other.

[0045] The number of the air vent holes 321 in the component structure 3 is one or more; a single waterproof breathable film 33 covers one or more of the air vent holes 321.

[0046] To improve the gas exchange efficiency and reduce the influence of the arrangement of the air vent groove 312 on the magnetic field strength of the waterproof loudspeaker, preferably, the air vent groove 312 is arranged along the width direction of the central magnet 1, and both ends of the air vent groove 312 communicate with the magnetic gap 4 respectively.

[0047] In this embodiment, the communication part of the air vent hole 321 and the air vent groove 312 is in the middle of the air vent groove 312. This can make the pressures received by each area of the diaphragm assembly 34 more balanced when the waterproof loudspeaker works, thereby improving the performance of the waterproof loudspeaker.

[0048] To improve the structural stability of the waterproof loudspeaker, optionally, the chassis 36s in the two component structures 3 are connected and fixed to each other. Preferably, the bent connecting portions 311 are respectively connected to the two chassis 36s.

[0049] In this embodiment, the bent connecting portion 311 includes a vertical portion, a first horizontal portion, an inclined portion, and a second horizontal portion that are connected in sequence. One end of the vertical portion away from the first horizontal portion is connected to the washer plate 31. The first horizontal portion is located in the magnetic gap 4. The inclined portion is located outside the magnetic gap 4. The second horizontal portion is connected to the speaker frame 36. In the thickness direction of the waterproof speaker, in the component structure 3, the distance between the first horizontal portion and the washer plate 31 is greater than the distance between the second horizontal portion and the washer plate 31. There is a height difference between the first horizontal portion and the second horizontal portion, which can provide enough space for the vibration of the voice coil 35, thereby preventing the voice coil 35 from colliding with the bent connecting portion 311 during vibration.

[0050] The stacked magnet 32 includes a first magnet 322 and a second magnet 323 that are stacked and connected. The first magnet 322 connects the washer plate 31 and the second magnet 323. The vent hole 321 communicates with the side of the second magnet 323 away from the central magnet 1. A stepped structure 324 is formed at the interface between the first magnet 322 and the second magnet 323. The inner edge of the diaphragm assembly 34 is connected to the stepped structure 324. In this embodiment, the first magnet 322 and the second magnet 323 are adhesively connected. In other embodiments, the first magnet 322 and the second magnet 323 may be an integrally formed one-piece structure.

[0051] In this embodiment, the diaphragm assembly 34 includes a first diaphragm 341, a skeleton 342, and a second diaphragm 343 that are connected in sequence from the inside out. The second diaphragm 343 is connected to the speaker frame 36. The skeleton 342 is connected to the voice coil 35. The inner edge of the first diaphragm 341 is connected to the stacked magnet 32. The first diaphragm 341 has an inner folded ring portion that protrudes away from the central magnet 1. This allows the overall volume of the magnetic circuit system of the waterproof speaker to be set larger, thereby improving the performance of the waterproof speaker.

[0052] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A waterproof speaker, characterized in that: including a central magnet; side magnets, with the side magnets provided on both sides of the central magnet respectively, and a magnetic gap formed between the side magnets and the central magnet; a component structure, with the component structure provided on the top and bottom of the central magnet respectively, and the component structure including a washer plate, which is fixedly connected to the central magnet. One end of the washer plate has a bent connecting portion, and a ventilation groove communicating with the magnetic gap is provided on the side of the washer plate away from the central magnet; a stacked magnet, which is arranged on the side of the washer plate away from the central magnet, covers the ventilation groove, and a ventilation hole communicating with the ventilation groove is provided on the side of the stacked magnet away from the central magnet; a waterproof breathable membrane, which is arranged on the side of the stacked magnet away from the central magnet and covers the ventilation hole; a diaphragm assembly, the diaphragm assembly is integrally in a ring frame shape, and the inner edge of the diaphragm assembly is connected to the stacked magnet; a chassis, which connects the outer edge of the diaphragm assembly and the bent connecting portion; a side washer, which connects the side magnet and the chassis.

2. The waterproof speaker according to claim 1, wherein: The number of the ventilation holes in the component structure is one or more.

3. The waterproof speaker according to claim 2, wherein: A single waterproof breathable membrane covers one or more of the ventilation holes.

4. The waterproof speaker according to claim 1, wherein: The ventilation groove is arranged along the width direction of the central magnet, and both ends of the ventilation groove communicate with the magnetic gap respectively.

5. The waterproof speaker according to claim 4, characterized in that: The communication part of the ventilation hole and the ventilation groove and the middle part of the ventilation groove.

6. The waterproof speaker according to claim 1, wherein: The chassis in the two component structures are connected and fixed to each other.

7. The waterproof speaker according to claim 1, characterized in that: The bent connecting portions are respectively connected to the two chassis.

8. The waterproof speaker according to claim 1, characterized in that: The bent connecting portion includes a vertical portion, a first horizontal portion, an inclined portion and a second horizontal portion connected in sequence. One end of the vertical portion away from the first horizontal portion is connected to the washer plate. The first horizontal portion is located in the magnetic gap, the inclined portion is located outside the magnetic gap, and the second horizontal portion is connected to the chassis; in the thickness direction of the waterproof speaker, in the component structure, the distance between the first horizontal portion and the washer plate is greater than the distance between the second horizontal portion and the washer plate.

9. The waterproof speaker according to claim 1, wherein: The stacked magnet includes a first magnet and a second magnet stacked and connected. The first magnet connects the washer plate and the second magnet, and a step structure is formed at the interface between the first magnet and the second magnet. The inner edge of the diaphragm assembly is connected to the step structure.

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 the inside to the outside. The second diaphragm is connected to the chassis. The first diaphragm has an inner folded ring portion, and the inner folded ring portion protrudes away from the central magnet.

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