Vibration structure of loudspeaker

Abstract

The utility model discloses a vibrating structure of a loudspeaker, which comprises a loudspeaker, a vibrating diaphragm is arranged in an inner cavity of the loudspeaker, a through hole is arranged at the bottom of the loudspeaker, a supporting rod is connected with an inner cavity of the through hole in a penetrating manner, a voice coil is sleeved on an outer ring of the supporting rod, and supports are arranged at four corners of the top of the loudspeaker. A fixing piece is arranged in an inner cavity of the support, a supporting block is arranged at the bottom of the loudspeaker, a fixing groove is formed in the top of the supporting block, a connecting rod is arranged at the bottom of the inner wall of the fixing groove, and two permanent magnets are arranged in the supporting block. When the structure is used and used for a long time, if the voice coil is damaged, the supporting block can be separated from the loudspeaker only by screwing the threaded rod out of the threaded groove, then the voice coil can be replaced, meanwhile, if the vibrating diaphragm is damaged, the vibrating diaphragm can be taken out from the loudspeaker only by pulling the clamping pin out of the clamping hole, so that the vibrating diaphragm is very convenient to replace, assemble and disassemble, and the working efficiency is greatly improved. And the voice coil and the vibrating diaphragm of the loudspeaker can be maintained conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, in particular to a vibration structure of a loudspeaker. Background Art

[0002] Speakers are commonly known as "horns". They are a very commonly used electroacoustic transducer device, which can be found in electronic and electrical equipment that make sounds. Speakers are transducers that convert electrical signals into acoustic signals, and the performance of speakers has a great impact on the sound quality. Speakers are the weakest device in audio equipment, but they are also the most important component for sound effects. The principle of sound generation is that audio electrical energy vibrates the cone or diaphragm through electromagnetic, piezoelectric or electrostatic effects, and resonates with the surrounding air to produce sound.

[0003] The voice coil and diaphragm of existing speakers are generally fixed inside the speakers, and it is very inconvenient to disassemble the speakers themselves. After long-term use, if the voice coil and diaphragm are damaged, it is difficult to replace and repair them, which brings inconvenience to the inspection and maintenance of the voice coil and diaphragm of the speaker. To this end, we provide a vibration structure of a speaker. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a vibration structure of a loudspeaker, which solves the problem of inconvenient maintenance of the voice coil and diaphragm of the current loudspeaker.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vibration structure of a loudspeaker, comprising a speaker, an inner cavity of the speaker is provided with a diaphragm, a through opening is provided at the bottom of the speaker, a support rod is connected through the inner cavity of the through opening, a voice coil is provided on the outer ring of the support rod, brackets are provided at the four corners of the top of the speaker, a fixing piece is provided in the inner cavity of the bracket, a support block is provided at the bottom of the speaker, a fixing groove is provided at the top of the support block, a connecting rod is provided at the bottom of the inner wall of the fixing groove, and two permanent magnets are provided in the support block.

[0008] Preferably, the outer circle of the diaphragm fits with the inner circle of the speaker, and the bottom of the inner wall of the diaphragm fits with the bottom of the inner wall of the speaker.

[0009] Preferably, fixing plates are provided at four corners of the top of the diaphragm, and a clamping hole is opened at the top of the fixing plate.

[0010] Preferably, a dust cover is provided at the bottom of the inner cavity of the speaker, the top of the voice coil passes through the bottom of the diaphragm, and the voice coil is located directly below the dust cover.

[0011] Preferably, a threaded groove is provided at the bottom of the support rod, a threaded rod is provided at the top of the connecting rod, the threaded rod is inserted into the inner cavity of the threaded groove, and the threaded rod and the threaded groove are connected by threads.

[0012] Preferably, the fixing member comprises a bayonet pin, an outer ring sleeve of the bayonet pin is provided with a clip and a spring, the top of the bayonet pin passes through the top of the inner wall of the bracket and is provided with a shift block, and the bottom of the bayonet pin is engaged with the inner cavity of the clamping hole.

[0013] Preferably, the top of the spring fits with the top of the inner wall of the bracket, and the bottom of the spring fits with the top of the clip.

[0014] (III) Beneficial effects

[0015] The utility model provides a vibration structure of a loudspeaker, which has the following beneficial effects:

[0016] 1. When using this structure, the support block and the speaker can be fixed together by inserting the threaded rod into the threaded groove and tightening it. After long-term use, if the voice coil is damaged, the support block can be separated from the speaker by simply unscrewing the threaded rod out of the threaded groove, and then the voice coil can be replaced. It is very convenient to install and disassemble, and it is easy to inspect and repair the voice coil of the speaker.

[0017] 2. When using this structure, when installing the diaphragm, you can pull the dial block upwards to pull the bayonet upwards. The spring will undergo elastic deformation due to the compression, and then the fixing plate will be inserted into the bracket. At the same time, the dial block will be released, and the spring will return to its original state and drive the bayonet pin to move downward. The bayonet pin will be inserted into the card hole to fix the diaphragm in the speaker. After long-term use, if the diaphragm is damaged, you only need to pull the bayonet pin out of the card hole to take out the diaphragm from the speaker for replacement. It is very convenient to install and disassemble, and it is easy to inspect and repair the diaphragm of the speaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the planar structure of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the fixing plate of the utility model;

[0021] Figure 4 For this utility model Figure 1 A in the enlarged view;

[0022] Figure 5 For this utility model Figure 2 Enlarged view of point B in .

[0023] In the figure: 1, speaker; 11, port; 2, diaphragm; 21, fixing plate; 22, clamping hole; 3, support rod; 31, threaded groove; 4, voice coil; 5, bracket; 6, fixing piece; 61, bayonet pin; 62, clip; 63, spring; 64, dial block; 7, support block; 71, fixing groove; 8, connecting rod; 81, threaded rod; 9, permanent magnet; 10, dust cover. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-5 As shown, the utility model provides a technical solution: a vibration structure of a loudspeaker, comprising a speaker 1, an inner cavity of the speaker 1 is provided with a diaphragm 2, a through hole 11 is opened at the bottom of the speaker 1, the inner cavity of the through hole 11 is penetrated and connected with a support rod 3, the outer ring of the support rod 3 is provided with a voice coil 4, a support block 7 is provided at the bottom of the speaker 1, and two permanent magnets 9 are provided in the support block 7. When in use, an AC audio current can be passed through the voice coil 4, and the voice coil 4 itself will generate a magnetic field, which interacts with the magnetic field generated by the permanent magnet 9, so that the voice coil 4 vibrates with the audio current in the magnetic field of the permanent magnet 9, and at the same time, by driving the diaphragm 2 to vibrate, the diaphragm 2 can resonate with the surrounding air, and then can emit a sound with the same waveform as the original audio signal.

[0026] Among them, the outer circle of the diaphragm 2 fits with the inner circle of the speaker 1, the bottom of the inner wall of the diaphragm 2 fits with the bottom of the inner wall of the speaker 1, the diaphragm 2 is placed in the speaker 1, and the outer surface of the diaphragm 2 fits tightly with the inner surface of the speaker 1.

[0027] Specifically, a dust cover 10 is provided at the bottom of the inner cavity of the speaker 1, the top of the voice coil 4 passes through the bottom of the diaphragm 2, and the voice coil 4 is located directly below the dust cover 10. The dust cover 10 can surround the voice coil 4 to prevent dust and water vapor in the air from adhering to the voice coil 4 and polluting it.

[0028] Specifically, a fixing groove 71 is provided at the top of the support block 7, a connecting rod 8 is provided at the bottom of the inner wall of the fixing groove 71, a threaded groove 31 is provided at the bottom of the support rod 3, a threaded rod 81 is provided at the top of the connecting rod 8, the threaded rod 81 is inserted into the inner cavity of the threaded groove 31, and the threaded rod 81 is connected to the threaded groove 31 by a thread. The support block 7 and the speaker 1 can be fixed together by inserting the threaded rod 81 into the threaded groove 31 and tightening it. After long-term use, if the voice coil 4 is damaged, the support block 7 and the speaker 1 can be separated by simply unscrewing the threaded rod 81 out of the threaded groove 31, and then the voice coil 4 can be replaced. The installation and disassembly are very convenient, which is convenient for repairing the voice coil 4 of the speaker.

[0029] The four corners of the top of the diaphragm 2 are all provided with fixing plates 21 , and the top of the fixing plates 21 is provided with a clamping hole 22 .

[0030] Furthermore, brackets 5 are provided at the four corners of the top of the speaker 1, and a fixing part 6 is provided in the inner cavity of the bracket 5. The fixing part 6 includes a bayonet 61. The outer ring of the bayonet 61 is provided with a clip 62 and a spring 63. The top of the bayonet 61 passes through the top of the inner wall of the bracket 5 and is provided with a shift block 64. The bottom of the bayonet 61 is inserted into the inner cavity of the card hole 22. The top of the spring 63 is in contact with the top of the inner wall of the bracket 5, and the bottom of the spring 63 is in contact with the top of the clip 62.

[0031] During specific use, when installing the diaphragm 2, the block 64 can be pulled upward to pull the bayonet 61 upward, and at the same time drive the clip 62 to move upward. At this time, the spring 63 is elastically deformed due to the squeezing of the clip 62, and then the fixing plate 21 is inserted into the bracket 5, and the block 64 is released at the same time. At this time, the spring 63 returns to its original state and drives the bayonet 61 to move downward through the clip 62. The bayonet 61 can be inserted into the card hole 22 to fix the diaphragm 2 in the speaker 1. After long-term use, if the diaphragm 2 is damaged, only the bayonet 61 needs to be pulled out of the card hole 22 to remove the diaphragm 2 from the speaker 1 for replacement. The installation and disassembly are very convenient, which is convenient for inspecting and repairing the diaphragm 2 of the speaker.

[0032] 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. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] 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 vibration structure of a loudspeaker, comprising a loudspeaker (1), characterized in that: The inner cavity of the speaker (1) is provided with a diaphragm (2), the bottom of the speaker (1) is provided with a through hole (11), the inner cavity of the through hole (11) is connected with a support rod (3), the outer ring of the support rod (3) is provided with a voice coil (4), the four corners of the top of the speaker (1) are provided with brackets (5), the inner cavity of the bracket (5) is provided with a fixing piece (6), the bottom of the speaker (1) is provided with a support block (7), the top of the support block (7) is provided with a fixing groove (71), the bottom of the inner wall of the fixing groove (71) is provided with a connecting rod (8), and two permanent magnets (9) are provided in the support block (7).

2. The vibration structure of a loudspeaker according to claim 1, characterized in that: The outer ring of the diaphragm (2) fits with the inner ring of the speaker (1), and the bottom of the inner wall of the diaphragm (2) fits with the bottom of the inner wall of the speaker (1).

3. The vibration structure of a loudspeaker according to claim 1, characterized in that: The four corners of the top of the diaphragm (2) are each provided with a fixing plate (21), and a clamping hole (22) is provided at the top of the fixing plate (21).

4. The vibration structure of a loudspeaker according to claim 1, characterized in that: A dust cover (10) is provided at the bottom of the inner cavity of the speaker (1), the top of the voice coil (4) passes through the bottom of the diaphragm (2), and the voice coil (4) is located directly below the dust cover (10).

5. The vibration structure of a loudspeaker according to claim 1, characterized in that: The bottom of the support rod (3) is provided with a threaded groove (31), the top of the connecting rod (8) is provided with a threaded rod (81), the threaded rod (81) is inserted into the inner cavity of the threaded groove (31), and the threaded rod (81) and the threaded groove (31) are connected via threads.

6. The vibration structure of a loudspeaker according to claim 3, characterized in that: The fixing member (6) comprises a bayonet (61), an outer ring of which is provided with a clip (62) and a spring (63), the top of the bayonet (61) passes through the top of the inner wall of the bracket (5) and is provided with a shift block (64), and the bottom of the bayonet (61) is engaged with the inner cavity of the clamping hole (22).

7. The vibration structure of a loudspeaker according to claim 6, characterized in that: The top of the spring (63) fits with the top of the inner wall of the bracket (5), and the bottom of the spring (63) fits with the top of the clip (62).

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