Sealing structure of vibrating diaphragm

Abstract

The utility model relates to the technical field of sound box equipment, and discloses a sealing structure of a vibrating diaphragm, which comprises a sound box body and further comprises the vibrating diaphragm arranged on one side of the sound box body; the fixing ring is arranged on the side, away from the loudspeaker box body, of the vibrating diaphragm, the vibrating diaphragm abuts against the fixing ring and the loudspeaker box body, and the fixing ring is fixedly connected with the loudspeaker box body; one side, close to the vibrating diaphragm, of the loudspeaker box body is provided with a flange and / or one side, close to the fixing ring, of the loudspeaker box body is provided with a flange, and the flanges are used for extruding the vibrating diaphragm to enable the vibrating diaphragm to interfere and deform. According to the sealing structure of the vibrating diaphragm, the flange is arranged on the side, close to the vibrating diaphragm, of the loudspeaker box body and / or the flange is arranged on the side, close to the vibrating diaphragm, of the fixing ring, the vibrating diaphragm is extruded and deformed through the flanges, and therefore sealing of a gap between the loudspeaker box body and the vibrating diaphragm and / or sealing of a gap between the fixing ring and the vibrating diaphragm are / is achieved; the problem that an existing loudspeaker box diaphragm is poor in sealing performance is solved.

Description

Technical Field

[0001] The present application relates to the technical field of speaker equipment, and specifically to a sealing structure of a diaphragm. Background Art

[0002] In order to ensure the sound quality of the speaker and reduce interference from the external environment, a good air pressure balance needs to be maintained inside and outside the speaker. Therefore, in addition to the pre-designed air outlet, the sealing of the rest of the speaker should be ensured.

[0003] As an important sound-generating structure of a speaker, the sealing of the diaphragm directly affects the sound quality of the speaker. In the related art, a diaphragm of a speaker is fixed to the speaker body by glue. However, a small gap will be formed between the diaphragm and the speaker body during vibration, and after the glue layer hardens, the small gap will further expand, thereby reducing the sealing of the diaphragm. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present application provides a sealing structure for a diaphragm, which solves the problem of poor sealing of the diaphragm of the existing speaker.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a sealing structure of a diaphragm, comprising a sound box body, characterized in that it also includes:

[0006] A diaphragm, wherein the diaphragm is arranged on one side of the speaker body;

[0007] A fixing ring, wherein the fixing ring is arranged on a side of the diaphragm away from the speaker body, the diaphragm abuts against the fixing ring and the speaker body, and the fixing ring is fixedly connected to the speaker body;

[0008] A flange is provided on one side of the speaker body close to the diaphragm and / or a flange is provided on one side of the fixing ring close to the diaphragm, and the flange is used to squeeze the diaphragm to cause interference deformation of the diaphragm.

[0009] Preferably, a positioning ring is provided on one side of the fixing ring close to the diaphragm, the inner ring surface of the positioning ring and the side surface of the fixing ring close to the diaphragm together form a receiving groove for accommodating the diaphragm, and an expansion joint is formed between the diaphragm and the inner ring surface of the positioning ring.

[0010] Preferably, the diaphragm includes a diaphragm body, a diaphragm fold and a diaphragm connecting part which are connected in sequence, and a deformation groove is opened on the side of the diaphragm connecting part close to the speaker body, and the deformation groove is located on the side of the diaphragm connecting part close to the diaphragm fold.

[0011] Preferably, a receiving groove is provided on a side of the speaker body and / or the fixing ring close to the diaphragm, and an opening of the receiving groove is not directly opposite to the flange.

[0012] Preferably, the fixing ring and / or the speaker body is provided with a pressing surface, the pressing surface is directly opposite to the flange, and the pressing surface is a plane.

[0013] Preferably, the speaker body includes a speaker shell and a mounting bracket that are fixedly connected, a guide column is provided on one side of the mounting bracket close to the diaphragm, a first guide hole that is plugged into and fits with the guide column is provided on the diaphragm, and a second guide hole that is plugged into and fits with the guide column is provided on the fixing ring.

[0014] Preferably, a positioning column is provided on one side of the speaker housing close to the diaphragm, and a positioning hole which is plugged and matched with the positioning column is opened on the fixing ring.

[0015] Preferably, a sound expansion hole is provided on the circumferential surface of the fixing ring.

[0016] Preferably, the diaphragm has a fixing portion, and at least two latching teeth are formed on a side of the fixing ring close to the diaphragm, each of the latching teeth abuts against the fixing portion of the diaphragm, and a fixing space for fixing the fixing portion is formed between the at least two latching teeth.

[0017] Preferably, it further comprises a sealing ring, wherein the sealing ring is fixedly connected to a side of the fixing ring away from the diaphragm, and the sealing ring is used for sealing the second through hole.

[0018] The present application provides a sealing structure of a diaphragm, which has the following beneficial effects:

[0019] The sealing structure of the diaphragm is that the diaphragm is made of soft elastic material. A flange is provided on the side of the speaker body close to the diaphragm and / or a flange is provided on the side of the fixing ring close to the diaphragm. The diaphragm is squeezed and deformed by the flange, thereby achieving the sealing of the gap between the speaker body and the diaphragm and / or the sealing of the gap between the fixing ring and the diaphragm, thereby solving the problem of poor sealing of the existing speaker diaphragms. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 This is a schematic diagram of the assembly relationship of Example 1 of the present application.

[0022] Figure 2 This is a schematic diagram of the assembly relationship from another viewing angle in Example 1 of the present application.

[0023] Figure 3 This is a partial cross-sectional view of Example 1 of the present application.

[0024] Figure 4 for Figure 3 Enlarged view of part A.

[0025] Figure 5 This is a schematic diagram of the structure of the fixing ring in Example 1 of the present application.

[0026] Figure 6 This is a partial structural cross-sectional view of Example 2 of the present application.

[0027] Figure 7 This is a partial structural cross-sectional view of Example 3 of the present application.

[0028] Figure 8 This is a partial structural cross-sectional view of Example 4 of the present application.

[0029] In the figure: 1. speaker body; 11. speaker shell; 111. positioning column; 12. mounting bracket; 121. threaded hole; 122. guide column; 123. reinforcing rib; 2. diaphragm; 21. diaphragm body; 22. diaphragm folding ring; 23. diaphragm connecting part; 231. deformation groove; 24. fixing part; 25. first through hole; 26. first guide hole; 3. fixing ring; 31. positioning ring; 311. accommodating groove; 312. avoidance gap; 32. expansion joint; 33. second through hole; 34. accommodating groove; 35. second guide hole; 36. positioning hole; 37. clamping tooth; 371. clamping space; 38. sound expansion hole; 4. flange; 5. sealing ring; 51. buffer block; 6. fixing bolt; 7. pressing surface. DETAILED DESCRIPTION

[0030] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to 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 application.

[0032] The technical solution of the present application is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0033] Embodiment 1:

[0034] See also Figure 1 and Figure 2 The present application provides a technical solution: a sealing structure of a diaphragm, comprising a speaker body 1, a diaphragm 2, a fixing ring 3 and a sealing ring 5.

[0035] See also Figure 1 and Figure 2 The speaker body 1 is used to carry various components in the speaker. The speaker body 1 includes a speaker shell 11 and a mounting bracket 12. The speaker shell 11 is cylindrical. A storage groove is provided on one side of the speaker shell 11 in the length direction. The mounting bracket 12 is accommodated in the storage groove. A plurality of reinforcing ribs 123 are integrally formed on the mounting bracket 12 along the circumference of the mounting bracket 12. Each reinforcing rib 123 is provided along the length direction of the mounting bracket 12, and the mounting bracket 12 is fixedly connected to the speaker shell 11 by bolts. The diaphragm 2 is provided on the side of the mounting bracket 12 away from the speaker body 1. The diaphragm 2 is made of elastic material. The diaphragm 2 includes a diaphragm body 21, a diaphragm fold 22 and a diaphragm connection part 23 connected in sequence from the inside to the outside.

[0036] See also Figure 3 and Figure 4 One side of the diaphragm connecting part 23 abuts against the mounting bracket 12, and the other side abuts against the fixing ring 3. In the present embodiment, a flange 4 is provided on the side of the mounting bracket 12 close to the diaphragm connecting part 23, and a pressing surface 7 is integrally formed on the fixing ring 3. The pressing surface 7 is opposite to the flange 4, and the pressing surface is a plane, so that when the diaphragm connecting part 23 abuts against the mounting bracket 12 tightly, the flange 4 can press and deform the diaphragm connecting part 23, thereby filling and sealing the gap between the diaphragm connecting part 23 and the mounting bracket 12, thereby improving the sealing performance of the diaphragm 2.

[0037] See also Figure 2 and Figure 5The fixing ring 3 is arranged on the side of the diaphragm 2 away from the mounting bracket 12, and the fixing ring 3 is fixedly connected to the mounting bracket 12. In this embodiment, the fixing ring 3 is arranged in a circular ring shape, and the projection of the diaphragm 2 is circular. In other embodiments of the present application, the fixing ring 3 can also be arranged in a triangular ring, a square ring, a pentagonal ring, etc., and the diaphragm 2 can be arranged in a triangular, square, pentagonal, etc. shape according to the shape of the fixing ring 3. A plurality of sound expansion holes 38 are provided on the circumferential surface of the fixing ring 3, and the plurality of sound expansion holes 38 are provided at intervals along the circumference of the fixing ring. The provision of the sound expansion holes 38 is not only conducive to reducing the weight of the fixing ring, but also conducive to the sound emitted by the speaker to be propagated in the circumferential direction of the speaker.

[0038] See also Figure 2 and Figure 5 A positioning ring 31 is integrally formed on the side of the fixing ring 3 close to the diaphragm 2, and a plurality of avoidance notches 312 are provided on the positioning ring 31. The inner ring surface of the positioning ring 31 and the side surface of the fixing ring 3 close to the diaphragm 2 together enclose a receiving groove 311 for receiving the diaphragm 2. Since the diameter of the inner ring surface of the positioning ring 31 is larger than the diameter of the side surface of the diaphragm connecting portion 23, when the diaphragm 2 is placed in the receiving groove 311, an expansion joint 32 is formed between the diaphragm 2 and the inner ring surface of the positioning ring 31. In addition, a deformation groove 231 is provided on the side of the diaphragm connecting portion 23 close to the mounting bracket 12, and the deformation groove 231 is located on the side of the diaphragm connecting portion 23 close to the diaphragm fold 22. The arrangement of the deformation groove 231 and the expansion joint 32 provides a receiving space for the portion of the diaphragm connecting portion 23 that is deformed when directly squeezed by the flange 4 and the fixing ring 3, thereby ensuring that the diaphragm 2 can work normally.

[0039] See also Figure 2 and Figure 5 , the fixing ring 3 is fixedly connected to the mounting bracket 12 by fixing bolts 6. Specifically, a plurality of second through holes 33 are provided on the fixing ring 3, each of which is a countersunk hole. A plurality of fixing parts 24 are integrally formed on the diaphragm connecting part 23, each of which is located on the side of the diaphragm connecting part 23 away from the diaphragm folding ring 22, each of which is provided with a first through hole 25, and a plurality of threaded holes 121 are provided on the mounting bracket 12. In the present embodiment, the number of fixing bolts 6 is set to four, the number of the first through hole 25, the second through hole 33 and the threaded hole 121 are all four, and the fixing bolts 6, the first through hole 25, the second through hole 33 and the threaded hole 121 correspond to each other one by one, so that the fixing ring 3 can be fixedly connected to the mounting bracket 12 by passing the stock bolts through the second through hole 33 and the first through hole 25 in sequence and threadedly cooperating with the threaded hole 121, thereby also realizing the fixed connection between the diaphragm 2 and the mounting bracket 12.

[0040] See also Figure 2 and Figure 5In addition, the fixing ring 3 and the diaphragm 2 are reinforced with glue, and a bonding layer for bonding the diaphragm 2 and the fixing ring 3 is provided on the side of the fixing ring 3 close to the diaphragm 2. A receiving groove 34 is provided on the side of the fixing ring 3 close to the diaphragm 2, and the opening of the receiving groove 34 is not directly opposite to the flange 4. By providing the receiving groove 34, not only can the excess glue flow into the receiving groove 34 when the fixing ring 3 squeezes the diaphragm 2, thereby reducing the occurrence of glue overflow, but also when a protrusion is provided on the diaphragm 2, the protrusion can be accommodated, thereby improving the adaptability of the fixing ring 3 and the diaphragm 2.

[0041] See also Figure 1 and Figure 2 The sealing ring 5 is used to cover the second through hole 33 to improve the overall aesthetics of the speaker. The sealing ring 5 is bonded to the side of the fixing ring 3 away from the diaphragm 2. A plurality of buffer blocks 51 are bonded to the side of the sealing ring 5 away from the fixing ring 3. In the present embodiment, the number of the buffer blocks 51 is set to four, and the four buffer blocks 51 are arranged at equal intervals along the circumference of the fixing ring 3.

[0042] See also Figure 2 and Figure 5 In order to position the fixing ring 3 and the diaphragm 2 before installation, a plurality of guide posts 122 are integrally formed on the side of the mounting bracket 12 close to the diaphragm 2. In this embodiment, the number of the guide posts 122 is set to five, and the five guide posts 122 are arranged at intervals and unevenly distributed. The diaphragm 2 is provided with five first guide holes 26, and the first guide holes 26 and the guide posts 122 are arranged one-to-one. The fixing ring 3 is provided with five second guide holes 35, and the second guide holes 35 and the guide posts 122 are arranged one-to-one. The first guide holes 26 and the second guide holes 35 are both plugged and matched with the guide posts 122. The positioning of the fixing ring 3 and the diaphragm 2 before installation can be achieved by making the guide holes pass through the first guide holes 26 and the second guide holes 35 in sequence. At the same time, due to the uneven distribution of the five guide posts 122, the fixing ring 3 and the diaphragm 2 can only be installed on the mounting bracket 12 at a specific angle.

[0043] See also Figure 2 and Figure 5 A plurality of positioning posts 111 are integrally formed on one side of the speaker housing 11 close to the fixing ring 3, and a plurality of positioning holes 36 are provided on the fixing ring 3. In this embodiment, the number of the positioning posts 111 and the positioning holes 36 are both set to six, and the six positioning posts 111 are arranged at equal intervals along the speaker housing 11, and the positioning holes 36 are arranged corresponding to the positioning posts 111, and the positioning holes 36 are plugged and matched with the positioning posts 111. By passing the positioning posts 111 through the positioning holes 36, the fixing ring 3 can be positioned before installation.

[0044] See also Figure 2 and Figure 5A plurality of groups of latch teeth 37 are further provided on one side of the fixing ring 3 close to the diaphragm 2. Each group of latch teeth 37 is respectively provided at an avoidance notch 312. Each group of latch teeth 37 includes two latch teeth 37. The two latch teeth 37 are arranged at an interval so as to form a latching space 371 for latching the fixing portion 24 of the diaphragm 2. In the present embodiment, a total of four groups of latch teeth 37 are provided. The four groups of latch teeth 37 respectively latch the four connecting portions, thereby reducing the displacement of the diaphragm 2 as the fixing bolt 6 rotates when the fixing bolt 6 is connected to the mounting bracket 12.

[0045] To sum up, the sealing structure of the diaphragm 2 is that the diaphragm 2 is made of a soft elastic material and a flange 4 is provided on the side of the speaker body 1 close to the diaphragm 2 and / or a flange 4 is provided on the side of the fixing ring 3 close to the diaphragm 2. The flange 4 is used to squeeze and deform the diaphragm 2, thereby achieving the sealing of the gap between the speaker body 1 and the diaphragm 2 and / or the sealing of the gap between the fixing ring 3 and the diaphragm 2, thereby solving the problem of poor sealing of the existing speaker diaphragm 2.

[0046] Embodiment 2:

[0047] See also Figure 6 The difference between this embodiment and embodiment 1 is that the flange 4 is arranged on the side of the fixing ring 3 close to the diaphragm 2 to fill and seal the gap between the diaphragm connecting portion 23 and the fixing ring 3, which can also improve the sealing performance of the diaphragm 2.

[0048] Embodiment 3:

[0049] See also Figure 7 The difference between this embodiment and embodiment 1 is that flanges 4 are provided on the side of the fixing ring 3 close to the diaphragm 2 and the side of the mounting bracket 12 close to the diaphragm 2. The two flanges 4 squeeze and seal the diaphragm 2 to form a sealing area on the diaphragm 2. The setting of the sealing area can improve the sealing performance of the diaphragm 2.

[0050] In addition, the opening of the receiving groove 34 is not directly opposite to the sealing area, so as to reduce the excess deformed part of the diaphragm 2 after deformation and place it in the receiving groove 34, thereby causing extrusion looseness and reducing the sealing effect of the flange 4 on the diaphragm 2.

[0051] Embodiment 4:

[0052] See also Figure 8 The difference between this embodiment and embodiment 3 is that the position of the receiving groove is different. In this embodiment, the receiving groove is opposite to the sealing area, which is beneficial to reduce the strength loss of the fixing ring caused by the opening of the receiving groove.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

[0055] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A sealing structure of a diaphragm, comprising a sound box body, characterized in that: Also includes: A diaphragm, wherein the diaphragm is arranged on one side of the speaker body; A fixing ring, wherein the fixing ring is arranged on a side of the diaphragm away from the sound box body, the diaphragm abuts against the fixing ring and the sound box body, and the fixing ring is fixedly connected to the sound box body; A flange is provided on one side of the speaker body close to the diaphragm and / or a flange is provided on one side of the fixing ring close to the diaphragm, and the flange is used to squeeze the diaphragm to cause interference deformation of the diaphragm.

2. The sealing structure of a diaphragm according to claim 1, characterized in that: A positioning ring is arranged on one side of the fixing ring close to the diaphragm, the inner ring surface of the positioning ring and the side surface of the fixing ring close to the diaphragm together form a receiving groove for receiving the diaphragm, and an expansion joint is formed between the diaphragm and the inner ring surface of the positioning ring.

3. The sealing structure of a diaphragm according to claim 1, characterized in that: The diaphragm includes a diaphragm body, a diaphragm fold and a diaphragm connecting part which are connected in sequence. A deformation groove is provided on a side of the diaphragm connecting part close to the speaker body. The deformation groove is located on a side of the diaphragm connecting part close to the diaphragm fold.

4. The diaphragm sealing structure according to claim 1, characterized in that: A receiving groove is provided on one side of the speaker body and / or the fixing ring close to the diaphragm, and the opening of the receiving groove is not directly opposite to the flange.

5. The diaphragm sealing structure according to claim 1, characterized in that: The fixing ring and / or the sound box body is provided with a pressing surface, the pressing surface is directly opposite to the flange, and the pressing surface is a plane.

6. The sealing structure of a diaphragm according to claim 5, characterized in that: The speaker body includes a speaker shell and a mounting bracket that are fixedly connected. A guide column is arranged on one side of the mounting bracket close to the diaphragm. The diaphragm is provided with a first guide hole that is plugged into and matched with the guide column. The fixing ring is provided with a second guide hole that is plugged into and matched with the guide column.

7. The sealing structure of a diaphragm according to claim 6, characterized in that: A positioning column is arranged on one side of the speaker housing close to the diaphragm, and a positioning hole which is plugged and matched with the positioning column is opened on the fixing ring.

8. The sealing structure of a diaphragm according to claim 1, characterized in that: A sound expansion hole is provided on the circumferential surface of the fixing ring.

9. The sealing structure of a diaphragm according to claim 1, characterized in that: The diaphragm has a fixing portion, and at least two latching teeth are formed on a side of the fixing ring close to the diaphragm, each of the latching teeth abuts against the fixing portion of the diaphragm, and a fixing space for fixing the fixing portion is formed between the at least two latching teeth.

10. The sealing structure of a diaphragm according to claim 1, characterized in that: It also includes a sealing ring, which is fixedly connected to a side of the fixing ring away from the diaphragm.

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