Vibrating diaphragm with solid silica gel folding ring structure

Abstract

A vibrating diaphragm with a solid silica gel folded ring structure comprises a dome, a folded ring, a metal ring, a first hot-pressing connection layer and a second hot-pressing connection layer, the folded ring is made of solid silica gel, the inner side of the folded ring and the outer side of the dome are arranged in a staggered manner in height, and the outer side of the folded ring and the metal ring are arranged in a staggered manner in height; the dome comprises a first main body part, a connecting edge and a second main body part which are sequentially distributed from inside to outside, the detachable ring comprises a bending part which is annularly distributed, a first fixing edge connected to the inner side of the bending part and a second fixing edge connected to the outer side of the bending part, and the first hot-pressing connecting layer is arranged between the first fixing edge and the second main body part of the dome. And the second hot-pressing connecting layer is arranged between the second fixed edge and the metal ring. According to the utility model, the fixing effect between the dome and the folding ring and the fixing effect between the folding ring and the metal ring are effectively ensured, and the deviation of the mounting position and height of the folding ring is prevented. Moreover, compared with a traditional vibrating diaphragm made of PET or PU materials, the folding ring made of solid silica gel materials has good physical performance, the hardness and thickness of the folding ring can be adjusted according to the use requirements of the vibrating diaphragm in the production process, and the vibrating diaphragm is good in flexibility and high in practicability.

Description

Technical Field

[0001] The utility model relates to a speaker assembly, in particular to a diaphragm with a solid silica gel folding ring structure. Background Art

[0002] The diaphragm is the sound-producing unit of the earphone. When the electrical signal passes through the coil fixed on the diaphragm, the magnetic field changes, causing the force on the diaphragm to change and deform. Because the electrical signal changes very quickly, the diaphragm vibrates at high speed, which is then transmitted to the air through the vibration of the diaphragm, generating sound waves.

[0003] Most diaphragms usually include a dome and a folding ring, and the folding ring usually uses PET (polyethylene terephthalate) or PU (polyurethane) as the base material. Regardless of whether the folding ring is made of PET or PU material, it is fixed to the dome by glue. However, in this way, the installation position of the folding ring is easily affected by the thickness of the glue, causing the installation position and height of the folding ring to deviate, affecting the sound quality of the diaphragm. Utility Model Content

[0004] Based on this, it is necessary to provide a diaphragm with a solid silicone folding ring structure to address the deficiencies in the prior art.

[0005] The technical solution of the utility model is: a diaphragm with a solid silicone folding ring structure, which includes a dome, a folding ring, a metal ring, a first hot pressing connection layer and a second hot pressing connection layer, the folding ring is made of solid silicone, the inner side of the folding ring and the outer side of the dome are staggered in height, and the outer side of the folding ring and the metal ring are staggered in height; the dome includes a first main body, a connecting edge and a second main body distributed in sequence from the inside to the outside, the folding ring includes a ring-shaped bending portion, a first fixed edge connected to the inner side of the bending portion, and a second fixed edge connected to the outer side of the bending portion, the first hot pressing connection layer is arranged between the first fixed edge and the second main body of the dome, and the second hot pressing connection layer is arranged between the second fixed edge and the metal ring.

[0006] In one embodiment, the first main body portion is spherical and is concave toward the folding ring.

[0007] In one embodiment, the connecting edge is arranged in a ring shape, and the connecting edge connects the first main body portion and the second main body portion in a horizontal direction.

[0008] In one embodiment, the first main body portion, the connecting edge and the second main body portion are integrally formed.

[0009] In one embodiment, the ball top is made of alloy.

[0010] In one embodiment, the outer diameter of the second main body portion gradually increases in the direction away from the connecting edge, so that the inner side surface of the second main body portion forms a conical surface, a first fixing surface is provided on the first fixing edge, and the inclination angle of the first fixing surface is consistent with the taper of the inner side surface of the second main body portion, and the first hot pressing connection layer is arranged between the first fixing surface on the first fixing edge and the second main body portion of the ball top.

[0011] In one embodiment, a second fixing surface is provided on the second fixing edge of the folded ring, the second fixing surface is arranged in a plane, and the second hot pressing connection layer is arranged between the second fixing surface on the second fixing edge and the metal ring.

[0012] In one of the embodiments, the bending portion is provided with grooves, and the grooves are distributed around the center of the folding ring.

[0013] In one embodiment, the first fixing edge and the second fixing edge are staggered in height.

[0014] In one embodiment, the metal ring is a copper ring.

[0015] The utility model has the beneficial effect of the diaphragm with solid silicone fold ring structure: the first hot pressing connection layer and the second hot pressing connection layer replace the traditional glue bonding method, wherein the first hot pressing connection layer connects the ball top and the fold ring, and the second hot pressing connection layer connects the fold ring and the metal ring, effectively ensuring the fixing effect between the ball top and the fold ring, and between the fold ring and the metal ring, and preventing the installation position and height of the fold ring from deviation. Moreover, compared with the traditional diaphragm made of PET or PU material, the fold ring made of solid silicone material has good physical properties. During the production process, the hardness and thickness of the fold ring can be adjusted according to the use requirements of the diaphragm, which has good flexibility and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the diaphragm with a solid silicone folding ring structure of the utility model;

[0017] Figure 2 , Figure 3 for Figure 1 Exploded views of different angles of the diaphragm shown;

[0018] Figure 4 for Figure 1 A cross-sectional view of the diaphragm shown;

[0019] Figure 5 for Figure 4 Enlarged view of part A. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0026] See also Figures 1 to 5 The utility model provides a diaphragm with a solid silicone fold ring structure, including a ball top 10, a fold ring 20, a metal ring 30, a first hot pressing connection layer 40 and a second hot pressing connection layer 50. The inner side of the fold ring 20 and the outer side of the ball top 10 are staggered in height and connected through the first hot pressing connection layer 40, and the outer side of the fold ring 20 and the metal ring 30 are staggered in height and connected through the second hot pressing connection layer 50.

[0027] The dome 10 is in the shape of a thin sheet. In this embodiment, the dome 10 is made of alloy, preferably, aluminum-magnesium alloy. The dome 10 includes a first main body 11, a connecting edge 13 and a second main body 12, which are arranged from the inside to the outside. The first main body 11, the connecting edge 13 and the second main body 12 are integrally formed. The first main body 11 is in the shape of a spherical surface, and the first main body 11 is concave toward the folding ring 20. The connecting edge 13 connects the first main body 11 and the second main body 12 in the horizontal direction. Specifically, the connecting edge 13 is in the shape of a ring, and the inner and outer sides of the connecting edge 13 are respectively connected to the first main body 11 and the second main body 12, and the outer diameter of the second main body 12 gradually increases from the direction away from the connecting edge 13, so that the inner side and the outer side of the second main body 12 form a conical surface.

[0028] The material of the folding ring 20 is solid silicone, and the folding ring 20 includes a ring-shaped bending portion 21, a first fixed edge 22 connected to the inner side of the bending portion 21, and a second fixed edge 23 connected to the outer side of the bending portion 21. The bending portion 21 is provided with a groove 211, and the groove 211 is distributed around the center of the folding ring 20. The first fixed edge 22 and the second fixed edge 23 are staggered in height, wherein the first fixed edge 22 is provided with a first fixed surface 221, and the inclination angle of the first fixed surface 221 is consistent with the taper of the inner side surface of the second main body 12, and the second fixed surface 231 is provided on the second fixed edge 23 of the folding ring 20, and the second fixed surface 231 is arranged in a plane.

[0029] The metal ring 30 is arranged in a ring shape. In this embodiment, the metal ring 30 is a copper ring.

[0030] During assembly, the metal ring 30 and the ball top 10 are first placed on the mold, and then the folding ring 20 made of solid silicone material is placed. The first fixed surface 221 on the first fixed edge 22 of the folding ring 20 is fitted with the inner side surface of the second main body 12 of the ball top 10, and the second fixed surface 231 on the second fixed edge 23 of the folding ring 20 is fitted with the metal ring 30. The folding ring 20 is hot-pressed to form a first hot-pressing connection layer 40 between the first fixed surface 221 on the first fixed edge 22 and the second main body 12 of the ball top 10, and a second hot-pressing connection layer 50 is formed between the second fixed surface 231 on the second fixed edge 23 and the metal ring 30. The first hot-pressing connection layer 40 connects the ball top 10 and the folding ring 20, and the second hot-pressing connection layer 50 connects the folding ring 20 and the metal ring 30.

[0031] The beneficial effect of the diaphragm with solid silicone folding ring structure of the utility model is that: by adopting the folding ring 20 of solid silicone material, the folding ring 20 can form the first hot pressing connection layer 40 and the second hot pressing connection layer 50 by hot pressing, and the first hot pressing connection layer 40 and the second hot pressing connection layer 50 replace the traditional glue bonding method, wherein the first hot pressing connection layer 40 connects the ball top 10 and the folding ring 20, and the second hot pressing connection layer 50 connects the folding ring 20 and the metal ring 30, effectively ensuring the fixing effect between the ball top 10 and the folding ring 20, and between the folding ring 20 and the metal ring 30, and preventing the installation position and height of the folding ring 20 from deviation. In addition, compared with the traditional diaphragm of PET or PU material, the folding ring 20 of solid silicone material has good physical properties (such as elasticity, high temperature resistance, etc.), and in the production process, the hardness and thickness of the folding ring 20 can be adjusted according to the use requirements of the diaphragm, with good flexibility and strong practicality.

[0032] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A diaphragm having a solid silicone fold structure, characterized in that: It includes a ball top, a folding ring, a metal ring, a first hot pressing connection layer and a second hot pressing connection layer. The folding ring is made of solid silicone. The inner side of the folding ring and the outer side of the ball top are staggered in height, and the outer side of the folding ring and the metal ring are staggered in height. The ball top includes a first main body, a connecting edge and a second main body distributed from the inside to the outside. The folding ring includes a ring-shaped bending part, a first fixed edge connected to the inner side of the bending part, and a second fixed edge connected to the outer side of the bending part. The first hot pressing connection layer is arranged between the first fixed edge and the second main body of the ball top, and the second hot pressing connection layer is arranged between the second fixed edge and the metal ring.

2. The diaphragm with a solid silicone fold structure according to claim 1, characterized in that: The first main body portion is spherical and concave toward the folding ring direction.

3. The diaphragm with a solid silicone fold structure according to claim 1, characterized in that: The connecting edge is arranged in a ring shape, and the connecting edge connects the first main body part and the second main body part in a horizontal direction.

4. The diaphragm with a solid silicone fold structure according to claim 1, characterized in that: The first main body portion, the connecting edge and the second main body portion are integrally formed.

5. The diaphragm with a solid silicone fold structure according to claim 1, characterized in that: The material of the ball top is alloy.

6. The diaphragm with a solid silicone fold structure according to claim 1, characterized in that: The outer diameter of the second main body portion gradually increases in the direction away from the connecting edge, so that the inner side surface of the second main body portion forms a conical surface, a first fixing surface is provided on the first fixing edge, and the inclination angle of the first fixing surface is consistent with the taper of the inner side surface of the second main body portion, and the first hot pressing connection layer is arranged between the first fixing surface on the first fixing edge and the second main body portion of the ball top.

7. The diaphragm with a solid silicone fold structure according to claim 1, characterized in that: A second fixing surface is provided on the second fixing edge of the folding ring, the second fixing surface is arranged in a plane, and the second hot pressing connection layer is arranged between the second fixing surface on the second fixing edge and the metal ring.

8. The diaphragm with a solid silicone fold structure according to claim 1, characterized in that: The bending portion is provided with grooves, and the grooves are distributed around the center of the folding ring.

9. The diaphragm with a solid silicone fold structure according to claim 1, characterized in that: The first fixed edge and the second fixed edge are staggered in height.

10. The diaphragm with a solid silicone fold structure according to claim 1, characterized in that: The metal ring is a copper ring.

Images