Structure for preventing loudspeaker diaphragm from not rebounding

Abstract

The utility model discloses a structure for preventing a loudspeaker diaphragm from not rebounding. The structure comprises a basin frame, and a diaphragm, a voice coil, a washer, a magnet and a cover body which are arranged on the basin frame, the diaphragm is provided with a diaphragm globe top, the edge of the diaphragm globe top is sequentially provided with a first connecting ring part and an arched ring part, the voice coil is arranged at the lower end of the first connecting ring part, the washer and the magnet are arranged up and down and located in the inner periphery of the voice coil, the washer is provided with a globe top bracket, the globe top bracket is provided with a supporting surface, the cover body is provided with a conical surface which is gradually reduced from top to bottom, and the conical surface is provided with a through hole. The diaphragm ball top is positioned below the through hole; therefore, the conical surface at the edge of the through hole and the upper surface of the supporting surface are used for limiting and supporting the diaphragm ball top during vertical movement, so that the problem that the diaphragm does not rebound due to large-amplitude deformation is prevented, the use of the diaphragm and the sound effect of the earphone are ensured, the experience effect of a user is improved, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technology of the loudspeaker field, in particular to a structure for preventing a loudspeaker diaphragm from not rebounding. Background Art

[0002] At present, headphones generally use dynamic speakers. There are many factors that affect the speakers, and the diaphragm is one of the key components to whether it can have good quality. The so-called diaphragm is actually a component that is very sensitive to changes in the magnetic field. When the electrical signal passes through the coil, the magnetic field changes, causing the diaphragm to be deformed by force. Since the electrical signal changes very quickly, the diaphragm vibrates at high speed, and then the vibration of the diaphragm is transmitted to the air, thereby generating sound waves. In this process, the quality of the diaphragm determines the overall quality of the finished product; the ideal vibration state of the speaker diaphragm: the diaphragm should start immediately when the voice coil starts, and when the voice coil stops moving without audio current flowing through it, the diaphragm should also stop immediately. Since the main function of the diaphragm is vibration, the dynamic performance of vibration is affected by elasticity and the other A diaphragm with inertia, sufficient rigidity, and linear elasticity will have better vibration dynamics, can reasonably restore / playback sound signals, and its audio performance will be balanced. A lightweight diaphragm will have smaller movement inertia, so the clarity / details of the sound will be very good. The headphone speakers in the prior art are usually composed of a basin, a magnet, a washer, a voice coil, and a diaphragm. The diaphragm will move up and down during operation or under the influence of external shaking or other forces. When the pressure on the diaphragm is too large and exceeds the ability of the diaphragm material to withstand it, the diaphragm will be concave and deformed excessively, resulting in a non-rebound phenomenon, thereby affecting the sound effect of the headphones, reducing the user experience, and having a small scope of application.

[0003] Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content

[0004] In view of this, the utility model aims to solve the deficiencies in the prior art, and its main purpose is to provide a structure to prevent the speaker diaphragm from not rebounding. The utility model utilizes a conical surface and a supporting surface to support and limit the upper and lower ends of the diaphragm when it moves up and down, thereby preventing the diaphragm from deforming significantly and causing the problem of not rebounding, ensuring the use of the diaphragm and the sound quality of the headphones, improving the user experience, and having a wide range of applications.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A structure for preventing a speaker diaphragm from not rebounding comprises a basin frame and a diaphragm, a voice coil, a washer, a magnet and a cover body arranged on the basin frame; wherein: the diaphragm has an upwardly arched diaphragm dome, the edge of the diaphragm dome is provided with a first connecting ring portion and an arched ring portion in sequence from the inside to the outside, the voice coil is provided at the lower end connected to the first connecting ring portion and is located at the edge of the diaphragm dome, the washer and the magnet are arranged up and down and are located at the inner periphery of the voice coil, the upper end of the washer is provided with a spherical top bracket, the upper end of the spherical top bracket is provided with a supporting surface matching the diaphragm dome, the center position of the cover body has a conical surface that gradually decreases from top to bottom, the conical surface is provided with a through hole that passes through up and down, and the diaphragm dome is located below the through hole.

[0007] As a preferred solution, the outer diameter of the through hole is one quarter of the outer diameter of the diaphragm dome.

[0008] As a preferred solution, the ball top bracket is made of EVA, sponge or other materials.

[0009] As a preferred solution, the ball-top bracket is fixed to the upper end of the washer by gluing.

[0010] As a preferred solution, the outer diameter of the ball-top bracket is smaller than the outer diameter of the washer.

[0011] As a preferred solution, the angle between the conical surface and the horizontal plane is 9 degrees to 11 degrees.

[0012] As a preferred solution, a second connecting ring portion is provided at the outer end of the arched ring portion, a mounting step is provided in the basin frame, the second connecting ring portion is provided on the mounting step, and the lower end of the cover body is provided at the upper end of the second connecting ring portion.

[0013] As a preferred solution, a reinforcement ring portion is provided on the second connecting ring portion, and the lower end of the reinforcement ring portion is provided on the installation step.

[0014] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that it mainly uses the design of various components to limit and support the diaphragm ball top when it moves up and down by using the conical surface at the edge of the through hole and the upper surface of the supporting surface, thereby preventing the diaphragm from being deformed significantly and not rebounding. In addition, the force point of the diaphragm ball top on the conical surface is a full circle, and the contact area is large, which can avoid the diaphragm from being damaged by collision with hard objects, ensure the use of the diaphragm and the sound effect of the earphone, and improve the user experience. The structural design is ingenious and reasonable, the use stability is good, and the application range is wide.

[0015] Secondly, the outer diameter of the ball bracket is smaller than that of the washer, so that the ball bracket will not exceed the edge of the washer when installed, thereby avoiding interference with the ball bracket when the voice coil moves up and down and generating noise, ensuring the sound quality of the headphones and good usability;

[0016] In addition, the setting of the reinforced ring portion improves the connection strength between the diaphragm and the basin frame, ensures the structural stability of the speaker, increases the service life of the speaker, and is highly practical.

[0017] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of an embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the diaphragm of the embodiment of the utility model when it moves up and down.

[0020] Description of the accompanying drawings:

[0021] 10. Basin frame 11. Diaphragm

[0022] 111. Diaphragm ball top 112. First connecting ring portion

[0023] 113. Arched ring portion 114. Second connecting ring portion

[0024] 115, reinforcement ring 12, voice coil

[0025] 13. Washer 14. Magnet

[0026] 15. Cover 151. Conical surface

[0027] 152, through hole 16, ball top bracket

[0028] 161. Support surface 162. Adhesive surface

[0029] 17. Install steps. DETAILED DESCRIPTION

[0030] Please refer to Figure 1 to Figure 2 As shown, it shows the specific structure of an embodiment of the utility model.

[0031] A structure for preventing a speaker diaphragm from not rebounding includes a basin frame 10 and a diaphragm 11, a voice coil 12, a washer 13, a magnet 14, and a cover 15 disposed on the basin frame 10; wherein:

[0032] The diaphragm 11 has an upwardly arched diaphragm dome 111, and the edge of the diaphragm dome 111 is sequentially provided with a first connecting ring portion 112 and an arched ring portion 113 from the inside to the outside; the voice coil 12 is provided at the lower end of the first connecting ring portion 112 and is located at the edge of the diaphragm dome 111; the washer 13 and the magnet 14 are arranged vertically at the center of the basin frame 10 and are located at the inner periphery of the voice coil 12, and a ball top bracket 16 is provided at the upper end of the washer 13, and a supporting surface 161 matching the diaphragm dome is provided at the upper end of the ball top bracket 16; the center position of the cover body 15 has a tapered surface 151 that gradually decreases from top to bottom, and a through hole 152 that penetrates from top to bottom is opened on the tapered surface 151, and the diaphragm dome 111 is located below the through hole 152;

[0033] In this embodiment, the angle between the conical surface 151 and the horizontal plane is 9 to 11 degrees, the outer diameter of the through hole 152 is one-fourth of the outer diameter of the diaphragm ball top 111, the ball top bracket 16 is made of EVA, sponge or the like, and the ball top bracket 16 is fixed to the upper end of the washer 13 by gluing. Preferably, the lower end of the ball top bracket 16 is provided with an adhesive surface 162 for connecting with the washer, and the angle between the conical surface 151 and the horizontal plane is 10 degrees; in this way, the conical surface at the edge of the through hole and the upper surface of the supporting surface are used to limit and support the diaphragm ball top when it moves up and down, thereby preventing the diaphragm from deforming significantly and causing the problem of non-rebound. Moreover, the force point of the diaphragm ball top on the conical surface is a full circle, and the contact area is large, which can avoid the diaphragm from being damaged by collision with hard objects, thereby ensuring the use of the diaphragm and the sound effect of the earphones, improving the user experience, and having an ingenious and reasonable structural design, good stability in use, and a wide range of applications.

[0034] In addition, the outer diameter of the ball top bracket 16 is smaller than the outer diameter of the washer 13, so that the ball top bracket will not exceed the edge of the washer when installed, thereby avoiding interference with the ball top bracket and generating noise when the voice coil moves up and down, ensuring the sound quality of the headphones and good usability.

[0035] In addition, a second connecting ring portion 114 is provided at the outer end of the arched ring portion 113, a mounting step 17 is provided in the basin frame 10, and the second connecting ring portion 114 is provided on the mounting step 17. The lower end of the cover body 15 is provided on the upper end of the second connecting ring portion 114, and a reinforcing ring portion 115 is provided on the second connecting ring portion 114, and the lower end of the reinforcing ring portion 115 is provided on the mounting step 17. In this way, the provision of the reinforcing ring portion improves the connection strength between the diaphragm and the basin frame, ensures the structural stability of the speaker, improves the service life of the speaker, and has strong practicality.

[0036] The design focus of the utility model is that it mainly uses the design of various components to limit and support the top of the diaphragm ball when it moves up and down by using the conical surface at the edge of the through hole and the upper surface of the supporting surface, thereby preventing the diaphragm from being deformed significantly and not rebounding. In addition, the force point of the top of the diaphragm ball on the conical surface is a full circle, and the contact area is large, which can avoid the diaphragm from being damaged by collision with hard objects, ensure the use of the diaphragm and the sound effect of the earphone, and improve the user experience. The structural design is ingenious and reasonable, the use stability is good, and the application range is wide.

[0037] Secondly, the outer diameter of the ball bracket is smaller than that of the washer, so that the ball bracket will not exceed the edge of the washer when installed, thereby avoiding interference with the ball bracket when the voice coil moves up and down and generating noise, ensuring the sound quality of the headphones and good usability;

[0038] In addition, the setting of the reinforced ring portion improves the connection strength between the diaphragm and the basin frame, ensures the structural stability of the speaker, increases the service life of the speaker, and is highly practical.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A structure for preventing a speaker diaphragm from not rebounding, characterized in that: The invention comprises a basin frame and a diaphragm, a voice coil, a washer, a magnet and a cover body arranged on the basin frame; wherein: the diaphragm has an upwardly arched diaphragm dome, the edge of the diaphragm dome is provided with a first connecting ring portion and an arched ring portion in sequence from the inside to the outside, the voice coil is arranged at the lower end connected to the first connecting ring portion and is located at the edge of the diaphragm dome, the washer and the magnet are arranged up and down and are located at the inner periphery of the voice coil, the upper end of the washer is provided with a ball top bracket, the upper end of the ball top bracket is provided with a supporting surface matching the diaphragm dome, the center position of the cover body has a conical surface which gradually decreases from top to bottom, the conical surface is provided with a through hole which passes through from top to bottom, and the diaphragm dome is located below the through hole.

2. The structure for preventing a speaker diaphragm from not rebounding according to claim 1, characterized in that: The outer diameter of the through hole is one quarter of the outer diameter of the dome of the diaphragm.

3. The structure for preventing a speaker diaphragm from not rebounding according to claim 1, characterized in that: The ball top bracket is made of EVA or sponge material.

4. The structure for preventing a speaker diaphragm from not rebounding according to claim 1, characterized in that: The ball top bracket is fixed to the upper end of the washer by gluing.

5. The structure for preventing a speaker diaphragm from not rebounding according to claim 1, characterized in that: The outer diameter of the ball top bracket is smaller than the outer diameter of the washer.

6. The structure for preventing a speaker diaphragm from not rebounding according to claim 1, characterized in that: The angle between the conical surface and the horizontal plane is 9 degrees to 11 degrees.

7. The structure for preventing a speaker diaphragm from not rebounding according to claim 1, characterized in that: A second connecting ring portion is arranged at the outer end of the arched ring portion, a mounting step is arranged in the basin frame, the second connecting ring portion is arranged on the mounting step, and the lower end of the cover body is arranged at the upper end of the second connecting ring portion.

8. The structure for preventing a speaker diaphragm from not rebounding according to claim 7, characterized in that: The second connecting ring portion is provided with a reinforcing ring portion, and the lower end of the reinforcing ring portion is provided on the mounting step.

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