Assembling system of miniature loudspeaker

Abstract

The invention provides an assembling system of a micro loudspeaker, and relates to the field of micro loudspeakers. Comprising a protective shell, a connecting sleeve, a dustproof cap, a vibrating diaphragm, a damper and a T-shaped magnet are arranged in the protective shell, a base is arranged at the bottom of the protective shell, and a fixed clamping plate, a voice coil and a coil are arranged in the connecting sleeve; a mounting groove is formed in the upper portion of the connecting sleeve, the bottom end of the vibrating diaphragm is connected to the inner side of the mounting groove in a clamped mode, fixing grooves are formed in the left end and the right end of the inner side of the connecting sleeve, and the bottoms of the left end and the right end of the fixing clamping plate are arranged in the fixing grooves respectively. Through the connecting sleeve, the convenience of the internal elements of the micro loudspeaker in the installation process is improved, the stability after installation is improved, and the problems that the assembly process is tedious and the installation is inconvenient due to the fact that the elements of all parts are small in size and cannot be positioned and assembled in the installation process are solved. And meanwhile, the connection stability and the service life of each component after assembly are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of micro-speakers, and in particular to an assembly system of micro-speakers. Background Art

[0002] Speakers, commonly known as "horns", are a very commonly used electroacoustic transducer device, which is a transducer device that converts electrical signals into acoustic signals. The performance of the speaker has a great impact on the sound quality. The speaker is the weakest device in the audio equipment, but it is the most important component for the sound effect. There are many types of speakers, and the prices vary greatly. Audio power vibrates the cone or diaphragm through electromagnetic, piezoelectric or electrostatic effects and resonates (resonates) with the surrounding air to produce sound. Micro speakers refer to smaller speakers, which are usually used in smart home devices, such as smart speakers, smart doorbells, etc. It has the characteristics of being small and light, low power consumption, and high sound quality, and can provide clear and high-quality sound output for smart home devices.

[0003] The working principle of the micro speaker is through electroacoustic conversion. When the current passes through the magnet, the magnet will generate a magnetic field. The magnetic field acts on the coil on the diaphragm, causing the coil to vibrate under the action of force. The vibrating coil will drive the diaphragm, causing the diaphragm to produce sound. Depending on the size and frequency of the current, the vibration speed of the diaphragm will also be different, thus producing sounds of different tones.

[0004] Most of the existing micro speakers are small in size, and the size of each assembled system is further reduced, resulting in a cumbersome assembly process. In addition, during the assembly process, objects such as the elastic wave, diaphragm, voice coil and T-shaped magnet in the micro speaker cannot be positioned and assembled, which increases the difficulty of assembling the micro speaker system. After assembly, the connection performance between the various parts is poor, and they are easily damaged after being damaged, which reduces the service life of the micro speaker. It is necessary to design a micro speaker assembly system to solve the above-mentioned problems. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides an assembly system for a micro-speaker, which solves the problems of the prior micro-speakers being too small, inconvenient to install, and unstable to install.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an assembly system of a micro-speaker, comprising a protective shell, wherein a connecting sleeve, a dust cap, a diaphragm, a spring and a T-shaped magnet are arranged inside the protective shell, a base is arranged at the bottom of the protective shell, and a fixing splint, a voice coil and a coil are arranged inside the connecting sleeve; a mounting groove is arranged at the upper part of the connecting sleeve, the bottom end of the diaphragm is snap-connected to the inner side of the mounting groove, the inner left and right ends of the connecting sleeve are both provided with fixing grooves, and the bottoms of the left and right ends of the fixing splint are respectively arranged inside the fixing groove; a snap-fit ​​groove is arranged at the inner bottom of the diaphragm, a snap-fit ​​sleeve is arranged at the bottom of the dust cap, and the snap-fit ​​sleeve is snap-connected to the inner side of the snap-fit ​​groove; the middle part of the top end of the voice coil is fixedly connected to the upper part of the fixing splint, and the coil is wound around the outer side of the voice coil.

[0007] Preferably, the protective shell and the connecting sleeve are installed in two equal halves, a plurality of empty grooves are equidistantly arranged on the outside of the protective shell, and the bottom end of the diaphragm and the installation groove, and the snap-fit ​​sleeve and the snap-fit ​​groove are fixedly connected by gluing.

[0008] Preferably, a connecting groove is provided in the middle of the upper end of the base, and the bottom of the T-shaped magnet is snap-connected to the inner side of the connecting groove.

[0009] Preferably, a plurality of positioning columns are equidistantly arranged on the outer side of the upper end of the base, and a plurality of positioning holes are equidistantly arranged on the bottom end of the connecting sleeve. The upper ends of the positioning columns are respectively engaged and connected to the inner sides of the corresponding positioning holes, and the positioning holes and the positioning columns are fixedly connected by gluing.

[0010] Preferably, a cavity is provided at the inner bottom of the protective shell, and the elastic wave is provided in the cavity.

[0011] Preferably, the inner side of the upper end of the elastic wave is fixedly connected to the outer bottom of the connecting sleeve, and the outer upper part of the diaphragm is fixedly connected to the inner upper part of the protective shell. The elastic wave and the connecting sleeve, and the diaphragm and the protective shell are fixedly connected by glue.

[0012] Preferably, a micro speaker assembly process includes the following steps:

[0013] S1: First, wind the coil around the outside of the voice coil, fix the coil and voice coil together on the fixing clamp, take one of the two halves of the connecting sleeve, install the left and right ends of the bottom of the fixing clamp into the fixing groove respectively, and assemble and fix the other half of the connecting sleeve;

[0014] S2: Then the inner circle of the spring wave is passed through the bottom of the connecting sleeve, so that the inner side of the upper end of the spring wave is adhered and fixed to the outer bottom of the connecting sleeve;

[0015] S3: Secondly, fix the bottom of the T-shaped magnet in the connection groove provided on the upper part of the base, take one of the two halves of the protective shell, install the assembled connection sleeve, fixing clamp, spring, voice coil and coil inside one of the two halves of the protective shell, and make the spring located in the cavity;

[0016] S4: Further install the whole formed by the T-shaped magnet and the base with the bottom of half of the protective shell. During the installation process, apply connection glue to the outer side of the upper end of the positioning column, install the positioning column in the positioning hole, and gently press the connecting sleeve downward to make the connecting sleeve and the positioning column firmly connected. Install the other half of the protective shell;

[0017] S5: Finally, apply connecting glue on the bottom and the bottom of the outer side of the upper end of the diaphragm, and the outer side of the snap-fit ​​sleeve set at the bottom of the dust cap, install the bottom end of the diaphragm in the installation groove, install the snap-fit ​​sleeve in the snap-fit ​​groove, and gently press down on the diaphragm and the dust cap to ensure that the dust cap and the diaphragm, the diaphragm and the connecting sleeve, and the diaphragm and the protective shell are firmly bonded.

[0018] The present invention provides an assembly system for a micro speaker, which has the following beneficial effects:

[0019] 1. The present invention arranges a connecting sleeve in the protective shell, and fixedly connects the spring, the voice coil and the coil through the connecting sleeve, and makes the bottom of the diaphragm snap into the installation groove arranged on the upper part of the connecting sleeve, so that the diaphragm is fixedly installed. At the same time, a snap-in groove is arranged on the inner bottom of the diaphragm, and the snap-in sleeve arranged on the bottom of the dust cap is snap-connected inside the snap-in groove, so that the dust cap and the diaphragm are fixedly connected, and the dust cap, diaphragm, spring, voice coil and coil can be positioned and installed on the connecting sleeve, thereby reducing the complexity of installation.

[0020] 2. The present invention uses glue to connect and fix the elastic wave and the connecting sleeve, the diaphragm and the protective shell, the diaphragm and the protective shell, the bottom end of the diaphragm and the mounting groove, and the snap sleeve and the snap groove, thereby increasing the stability of the connection between the parts after assembly. After being damaged, the components inside the micro speaker will not be easily damaged, thereby increasing the service life of the micro speaker.

[0021] 3. By dividing the protective shell and the connecting sleeve into two halves for installation, the convenience of installing the protective shell, the connecting sleeve and the internal structure is increased. First, the components inside the connecting sleeve are assembled inside one connecting sleeve, and then the other half of the connecting sleeve is installed after assembly. After the overall assembly is completed, it is installed inside a protective shell, and the positioning column and the positioning hole are positioned, assembled and fixed, and then the other half of the protective shell is installed, which increases the convenience of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of the present invention;

[0023] Figure 2 It is a cross-sectional schematic diagram of the present invention;

[0024] Figure 3 It is a schematic diagram of a cutaway three-dimensional structure of the present invention;

[0025] Figure 4 It is a schematic diagram of a three-dimensional structure of a sectional view of a connecting sleeve diaphragm of the present invention;

[0026] Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the dust cap and the diaphragm of the present invention;

[0027] Figure 6 It is a schematic top view of the three-dimensional structure of the diaphragm of the present invention;

[0028] Figure 7 It is a bottom view schematic diagram of the three-dimensional structure of the dust cap of the present invention;

[0029] Figure 8 It is a schematic diagram of the exploded structure of the connecting sleeve and the base of the present invention;

[0030] Fig. 9 It is a schematic diagram of the base structure of the present invention;

[0031] Fig.10 It is a schematic diagram of the three-dimensional structure of the protective shell of the present invention.

[0032] Among them, 1. protective shell; 101. cavity; 102. empty slot; 2. connecting sleeve; 201. installation slot; 202. positioning hole; 203. fixing slot; 3. fixing splint; 4. dust cap; 401. snap-fit ​​sleeve; 5. diaphragm; 501. snap-fit ​​slot; 6. elastic wave; 7. voice coil; 8. coil; 9. base; 901. snap-fit ​​slot; 10. T-shaped magnet; 11. positioning column. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1:

[0035] Please refer to the attached Figure 1 - Attachment Fig.10 The embodiment of the present invention provides an assembly system of a micro speaker, including a protective shell 1, wherein a connecting sleeve 2, a dust cap 4, a diaphragm 5, a spring 6 and a T-shaped magnet 10 are arranged inside the protective shell 1, a base 9 is arranged at the bottom of the protective shell 1, and a fixing clamp 3, a voice coil 7 and a coil 8 are arranged inside the connecting sleeve 2; a mounting groove 201 is arranged at the upper part of the connecting sleeve 2, and the bottom end of the diaphragm 5 is snap-connected to the inner side of the mounting groove 201, and the inner left and right ends of the connecting sleeve 2 are both provided with fixing grooves 203, and the bottoms of the left and right ends of the fixing clamp 3 are respectively arranged on the fixing The inside of the fixed groove 203; the inner bottom of the diaphragm 5 is provided with a snap-fit ​​groove 501, and the bottom of the dust cap 4 is provided with a snap-fit ​​sleeve 401, and the snap-fit ​​sleeve 401 is snap-fitted and connected to the inner side of the snap-fit ​​groove 501; the middle of the top of the voice coil 7 is fixedly connected to the upper part of the fixed clamping plate 3, and the coil 8 is wound around the outer side of the voice coil 7, and is connected between the snap-fit ​​groove 501 and the snap-fit ​​sleeve 401, so that the diaphragm 5 and the dust cap 4 are positioned and installed, and the diaphragm 5 is positioned and installed with the bottom of the fixed groove 203 and the diaphragm 5, and the diaphragm 5 and the connecting sleeve 2 are positioned and installed, which increases the convenience of installation.

[0036] The protective shell 1 and the connecting sleeve 2 are both installed in two halves, and a number of empty grooves 102 are equidistantly arranged on the outside of the protective shell 1. The bottom end of the diaphragm 5 and the installation groove 201, and the snap-fitting sleeve 401 and the snap-fitting groove 501 are fixedly connected by gluing. The protective shell 1 and the connecting sleeve 2 installed in two halves are convenient for the assembly of the internal structure. The diaphragm 5 is fixedly connected to the connecting sleeve 2 and the dust cap 4 by gluing, which is convenient to operate and has stable fixing performance.

[0037] A connecting groove 901 is provided in the middle of the upper end of the base 9 , and the bottom of the T-shaped magnet 10 is snap-connected to the inner side of the connecting groove 901 , so as to facilitate installation and fixation between the T-shaped magnet 10 and the base 9 .

[0038] A number of positioning columns 11 are equidistantly arranged on the outer side of the upper end of the base 9, and a number of positioning holes 202 are equidistantly arranged on the bottom end of the connecting sleeve 2. The upper ends of the positioning columns 11 are respectively engaged and connected to the inner sides of the corresponding positioning holes 202. The diaphragm 5 and the protective shell 1 are fixedly connected by gluing, which facilitates the positioning and installation of the bottom end of the connecting sleeve 2 on the base 9, and the fixing stability performance after installation is increased.

[0039] A cavity 101 is disposed at the inner bottom of the protective shell 1 , and the wave damper 6 is disposed in the cavity 101 , so that the wave damper 6 can be placed inside the protective shell 1 .

[0040] The inner side of the upper end of the spring 6 is fixedly connected to the outer bottom of the connecting sleeve 2, and the outer upper part of the diaphragm 5 is fixedly connected to the inner upper part of the protective shell 1. The spring 6 and the connecting sleeve 2, and the diaphragm 5 and the protective shell 1 are fixedly connected by glue, which facilitates the stable connection between the spring 6 and the connecting sleeve 2, and between the spring 6 and the connecting sleeve 2.

[0041] Embodiment 2:

[0042] Please refer to the attached Figure 1 - Attachment Fig.10 , a micro speaker assembly process, comprising the following steps:

[0043] S1: First, wind the coil 8 around the outside of the voice coil 7, fix the whole formed by the coil 8 and the voice coil 7 on the fixing clamp 3, take one of the two halves of the connecting sleeve 2, install and clamp the left and right ends of the bottom of the fixing clamp 3 in the fixing groove 203 respectively, and assemble and fix the other half of the connecting sleeve 2;

[0044] S2: Then the inner circle of the wave spring 6 is passed through the bottom of the connecting sleeve 2, so that the inner side of the upper end of the wave spring 6 is adhered and fixed to the outer bottom of the connecting sleeve 2;

[0045] S3: Next, fix the bottom of the T-shaped magnet 10 in the connection groove 901 provided on the upper part of the base 9, take one of the two equally divided protective shells 1, install the assembled connection sleeve 2, the fixing clamp plate 3, the spring 6, the voice coil 7 and the coil 8 inside one of the two equally divided protective shells 1, and make the spring 6 located in the cavity 101;

[0046] S4: Further install the whole formed by the T-shaped magnet 10 and the base 9 to the bottom of half of the protective shell 1. During the installation process, apply connection glue to the outer side of the upper end of the positioning column 11, install the positioning column 11 in the positioning hole 202, and gently press the connecting sleeve 2 downward to make the connecting sleeve 2 and the positioning column 11 firmly connected, and install the other half of the protective shell 1;

[0047] S5: Finally, apply connecting glue on the bottom and the bottom of the outer side of the upper end of the diaphragm 5, and the outer side of the snap-fit ​​sleeve 401 set at the bottom of the dust cap 4, install the bottom end of the diaphragm 5 in the installation groove 201, install the snap-fit ​​sleeve 401 in the snap-fit ​​groove 501, and gently press down the diaphragm 5 and the dust cap 4 to ensure that the dust cap 4 and the diaphragm 5, the diaphragm 5 and the connecting sleeve 2, and the diaphragm 5 and the protective shell 1 are firmly adhered.

[0048] The convenience of the micro speaker during installation is increased, and the stability after installation is increased, which avoids the problem of cumbersome assembly process and inconvenient installation due to the small size of each component and the inability to position and assemble during installation. At the same time, the connection stability of each component after assembly is increased, which is not easy to be damaged after being damaged, thereby increasing the service life.

[0049] Although embodiments of the present invention 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 invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A micro speaker assembly system, comprising a protective housing (1), characterized in that: The protective shell (1) is provided with a connecting sleeve (2), a dust cap (4), a diaphragm (5), a spring (6) and a T-shaped magnet (10); the bottom of the protective shell (1) is provided with a base (9); the connecting sleeve (2) is provided with a fixing clamp (3), a voice coil (7) and a coil (8); The upper part of the connecting sleeve (2) is provided with a mounting groove (201), the bottom end of the diaphragm (5) is snap-connected to the inner side of the mounting groove (201), the inner left and right ends of the connecting sleeve (2) are both provided with fixing grooves (203), and the bottoms of the left and right ends of the fixing clamping plate (3) are respectively arranged inside the fixing grooves (203); The inner bottom of the diaphragm (5) is provided with a snap-fit ​​groove (501), the bottom of the dust cap (4) is provided with a snap-fit ​​sleeve (401), and the snap-fit ​​sleeve (401) is snap-fitted and connected to the inner side of the snap-fit ​​groove (501); The middle part of the top end of the voice coil (7) is fixedly connected to the upper part of the fixing clamp (3), and the coil (8) is wound around the outside of the voice coil (7).

2. The micro speaker assembly system according to claim 1, characterized in that: The protective shell (1) and the connecting sleeve (2) are both installed in two halves, and a plurality of empty grooves (102) are equidistantly arranged on the outer side of the protective shell (1). The bottom end of the diaphragm (5) and the installation groove (201), and the snap-fit ​​sleeve (401) and the snap-fit ​​groove (501) are fixedly connected by gluing.

3. The micro speaker assembly system according to claim 1, characterized in that: A connecting groove (901) is provided in the middle of the upper end of the base (9), and the bottom of the T-shaped magnet (10) is snap-connected to the inner side of the connecting groove (901).

4. The micro speaker assembly system according to claim 1, characterized in that: A plurality of positioning columns (11) are equidistantly arranged on the outer side of the upper end of the base (9), and a plurality of positioning holes (202) are equidistantly arranged on the bottom end of the connecting sleeve (2). The upper ends of the positioning columns (11) are respectively snap-fitted and connected to the inner sides of the corresponding positioning holes (202), and the positioning holes (202) and the positioning columns (11) are fixedly connected by gluing.

5. The micro speaker assembly system according to claim 1, characterized in that: A cavity (101) is provided at the inner bottom of the protective shell (1), and the elastic wave (6) is arranged in the cavity (101).

6. The micro speaker assembly system according to claim 1, characterized in that: The inner side of the upper end of the elastic wave (6) is fixedly connected to the outer bottom of the connecting sleeve (2), and the outer upper part of the diaphragm (5) is fixedly connected to the inner upper part of the protective shell (1). The elastic wave (6) and the connecting sleeve (2), and the diaphragm (5) and the protective shell (1) are fixedly connected by gluing.

7. The assembly steps of a micro speaker according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1: First, the coil (8) is wound and installed on the outside of the voice coil (7), and the whole formed by the coil (8) and the voice coil (7) is fixed on the fixing clamp (3), and one of the two halves of the connecting sleeve (2) is taken, and the left and right ends of the bottom of the fixing clamp (3) are respectively installed and clamped in the fixing groove (203), and the other half of the connecting sleeve (2) is assembled and fixed; S2: Then the inner ring of the wave spring (6) is passed through the bottom of the connecting sleeve (2), so that the inner side of the upper end of the wave spring (6) is adhered and fixed to the outer bottom of the connecting sleeve (2); S3: Next, fix the bottom of the T-shaped magnet (10) in the connection groove (901) provided on the upper part of the base (9), take one of the two equally divided protective shells (1), install the assembled connection sleeve (2), the fixing clamp (3), the spring (6), the voice coil (7) and the coil (8) inside one of the two equally divided protective shells (1), and make the spring (6) located in the cavity (101); S4: Further install the whole formed by the T-shaped magnet (10) and the base (9) on the bottom of half of the protective shell (1). During the installation process, apply connection glue on the outer side of the upper end of the positioning column (11), install the positioning column (11) in the positioning hole (202), and gently press the connecting sleeve (2) downward to make the connecting sleeve (2) and the positioning column (11) firmly connected, and install the other half of the protective shell (1); S5: Finally, apply connecting glue to the bottom and the bottom of the outer side of the upper end of the diaphragm (5), as well as the outer side of the snap-fit ​​sleeve (401) provided at the bottom of the dust cap (4), install the bottom end of the diaphragm (5) in the installation groove (201), install the snap-fit ​​sleeve (401) in the snap-fit ​​groove (501), and gently press downward on the diaphragm (5) and the dust cap (4), so that the dust cap (4) and the diaphragm (5), the diaphragm (5) and the connecting sleeve (2), and the diaphragm (5) and the protective shell (1) are firmly bonded.

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