Noise reduction horn structure

Abstract

The utility model discloses a noise reduction horn structure, which comprises a frame, a cone is arranged on the inner ring of the frame, a damper is arranged on the right side of the inner wall of the frame, a voice coil is connected to the right side of the frame in a penetrating manner, a washer and a magnet are sleeved on the outer ring of the voice coil, the washer is positioned on the left side of the magnet, and a T iron is arranged on the right side of the magnet. The outer ring of the basin frame is sleeved with a shielding sleeve, a filling groove is formed between the inner wall and the outer wall of the shielding sleeve, the inner cavity of the filling groove is filled with a ferrite material, the outer ring of the shielding sleeve is sleeved with a protective sleeve, a buffer groove is formed between the inner wall and the outer wall of the protective sleeve, and the inner cavity of the buffer groove is filled with a spring. When the structure is used, the ferrite material is used as a non-metal magnetic material and can absorb electromagnetic waves outside the loudspeaker, so that a good electromagnetic shielding effect can be provided, a voice coil in the loudspeaker can be prevented from being interfered by the external electromagnetic waves during working, background noise can be avoided, and the sound effect of the loudspeaker can be improved.

Description

Technical Field

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

[0002] Speakers, commonly known as "horns", are a very common electroacoustic transducer device that can be found in electronic and electrical devices that make sound. Speakers are transducers that convert electrical signals into acoustic signals. 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 speakers is that audio electrical energy vibrates the cone or diaphragm through electromagnetic, piezoelectric or electrostatic effects, and resonates (resonates) with the surrounding air to produce sound.

[0003] Existing speakers generally do not have an electromagnetic shielding structure. When the speaker is working, external electromagnetic waves will interfere with the speaker's voice coil, causing some noise to be mixed into the sound effect it emits, which is background noise, thus causing adverse effects on the speaker's sound effects. To this end, we provide a noise reduction speaker structure. 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 noise reduction speaker structure, which solves the problem that the current speakers do not have an electromagnetic shielding structure.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a noise reduction speaker structure, including a basin frame, the inner ring of the basin frame is provided with a paper basin, the right side of the inner wall of the basin frame is provided with a spring, the right side of the basin frame is connected with a voice coil, the outer ring of the voice coil is provided with a washer and a magnet, the washer is located on the left side of the magnet, a T-iron is provided on the right side of the magnet, the outer ring of the basin frame is provided with a shielding sleeve, and the outer ring of the shielding sleeve is provided with a protective sleeve.

[0008] Preferably, the basin frame, paper basin, shielding sleeve and protective sleeve are all trumpet-shaped, the left side of the basin frame is open, and the left and right sides of the paper basin, shielding sleeve and protective sleeve are all open.

[0009] Preferably, the left side of the Wassler is fixedly connected to the right side of the basin frame, the left side of the T-iron is inserted into the inner cavity of the magnet and fixedly connected to the right side of the voice coil, and the outer circles of the Wassler, magnet and T-iron are all fixedly connected to the inner circle of the shielding sleeve.

[0010] Preferably, a filling groove is provided between the inner and outer walls of the shielding sleeve, and the inner cavity of the filling groove is filled with ferrite material.

[0011] Preferably, a buffer groove is provided between the inner and outer walls of the protective sleeve, and the inner cavity of the buffer groove is filled with a spring.

[0012] Preferably, a dust cap is provided on the left side of the elastic wave, and the left side of the voice coil passes through the right side of the elastic wave and extends to the inner cavity of the dust cap.

[0013] (III) Beneficial effects

[0014] The utility model provides a noise reduction speaker structure, which has the following beneficial effects:

[0015] 1. When this structure is in use, the ferrite material, as a non-metallic magnetic material, can absorb electromagnetic waves outside the speaker, so it can provide a good electromagnetic shielding effect, prevent the voice coil in the speaker from being disturbed by external electromagnetic waves when working, avoid the generation of background noise, and improve the sound effect of the speaker.

[0016] 2. When the structure is in use, since the shielding sleeve and the protective sleeve are both made of soft materials, when the speaker is hit by an external object, the shielding sleeve, the protective sleeve and the spring can buffer the impact force to avoid damage to the basin frame and the speaker main structure inside it. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the planar structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 A in the enlarged view;

[0020] Figure 4 For this utility model Figure 2 Enlarged view of point B in .

[0021] In the figure: 1. basin frame; 2. paper basin; 3. spring; 4. voice coil; 5. wass; 6. magnet; 7. T iron; 8. shielding sleeve; 81. filling groove; 82. ferrite material; 9. protective sleeve; 91. buffer groove; 92. spring; 10. dust cap. DETAILED DESCRIPTION

[0022] 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.

[0023] like Figure 1-4 As shown, the utility model provides a technical solution: a noise reduction speaker structure, including a basin frame 1, an inner ring of the basin frame 1 is provided with a paper cone 2, a spring 3 is provided on the right side of the inner wall of the basin frame 1, a voice coil 4 is connected through the right side of the basin frame 1, an outer ring of the voice coil 4 is provided with a washer 5 and a magnet 6, and the washer 5 is located on the left side of the magnet 6. When in use, when an AC audio current passes through the voice coil 4, the voice coil 4 will generate a corresponding magnetic field, and this magnetic field interacts with the magnetic field generated by the magnet 6, so that the voice coil 4 vibrates in the magnetic field of the magnet 6 with the audio current, and at the same time drives the paper cone 2 to vibrate through the spring 3, and the paper cone 2 can resonate with the surrounding air to emit a sound with the same waveform as the original audio signal.

[0024] Among them, the left side of the Wassler 5 is fixedly connected to the right side of the basin frame 1, a T-iron 7 is provided on the right side of the magnet 6, the left side of the T-iron 7 is inserted into the inner cavity of the magnet 6 and fixedly connected to the right side of the voice coil 4, the T-iron 7 can fix the magnet 6 and the voice coil 4 together, the outer circles of the Wassler 5, the magnet 6 and the T-iron 7 are all fixedly connected to the inner circle of the shielding sleeve 8, and the shielding sleeve 8 surrounds the main structure of the speaker as a whole.

[0025] Furthermore, a dust cap 10 is provided on the left side of the elastic wave 3, and the left side of the voice coil 4 passes through the right side of the elastic wave 3 and extends to the inner cavity of the dust cap 10. The dust cap 10 can prevent the voice coil 4 from being contaminated by dust and water vapor in the air, so as to protect the voice coil 4 and avoid it from being contaminated.

[0026] Specifically, the outer ring of the basin frame 1 is provided with a shielding sleeve 8, and a filling groove 81 is opened between the inner and outer walls of the shielding sleeve 8. The inner cavity of the filling groove 81 is filled with ferrite material 82. The ferrite material 82 is a non-metallic magnetic material, and its main components are NiCuZn materials containing iron oxide, copper oxide, zinc oxide and nickel oxide. As auxiliary components, it also contains bismuth oxide, silicon oxide, magnesium oxide and cobalt oxide, which can absorb electromagnetic waves outside the speaker, so it can provide a good electromagnetic shielding effect, prevent the voice coil 4 in the speaker from being disturbed by external electromagnetic waves when working, avoid the generation of background noise, and improve the sound effect of the speaker.

[0027] Furthermore, the outer ring of the shielding sleeve 8 is provided with a protective sleeve 9, a buffer groove 91 is opened between the inner and outer walls of the protective sleeve 9, the inner cavity of the buffer groove 91 is filled with a spring 92, and the shielding sleeve 8 and the protective sleeve 9 are both made of soft materials such as rubber and silicone. When the speaker is hit by an external object, the shielding sleeve 8, the protective sleeve 9 and the spring 92 can buffer the impact force to avoid damage to the basin frame 1 and the speaker main structure therein.

[0028] Furthermore, the basin frame 1, paper basin 2, shielding sleeve 8 and protective sleeve 9 are all trumpet-shaped, with the left side of the basin frame 1 open, and the left and right sides of the paper basin 2, shielding sleeve 8 and protective sleeve 9 open. The trumpet shape can reduce the dispersion of sound, thereby increasing the loudness of the sound emitted by the speaker.

[0029] 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.

[0030] 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 noise reduction speaker structure, comprising a basin frame (1), characterized in that: The inner ring of the basin frame (1) is provided with a paper basin (2), the right side of the inner wall of the basin frame (1) is provided with a spring (3), the right side of the basin frame (1) is connected with a voice coil (4), the outer ring of the voice coil (4) is provided with a washer (5) and a magnet (6), the washer (5) is located on the left side of the magnet (6), a T iron (7) is provided on the right side of the magnet (6), the outer ring of the basin frame (1) is provided with a shielding sleeve (8), and the outer ring of the shielding sleeve (8) is provided with a protective sleeve (9).

2. The noise reduction speaker structure according to claim 1, characterized in that: The basin frame (1), the paper basin (2), the shielding sleeve (8) and the protective sleeve (9) are all trumpet-shaped; the left side of the basin frame (1) is open, and the left and right sides of the paper basin (2), the shielding sleeve (8) and the protective sleeve (9) are all open.

3. The noise reduction speaker structure according to claim 1, characterized in that: The left side of the washer (5) is fixedly connected to the right side of the basin frame (1), the left side of the T-iron (7) is inserted into the inner cavity of the magnet (6) and fixedly connected to the right side of the voice coil (4), and the outer rings of the washer (5), the magnet (6) and the T-iron (7) are all fixedly connected to the inner ring of the shielding sleeve (8).

4. The noise reduction speaker structure according to claim 1, characterized in that: A filling groove (81) is provided between the inner and outer walls of the shielding sleeve (8), and the inner cavity of the filling groove (81) is filled with ferrite material (82).

5. The noise reduction speaker structure according to claim 1, characterized in that: A buffer groove (91) is provided between the inner and outer walls of the protective sleeve (9), and the inner cavity of the buffer groove (91) is filled with a spring (92).

6. The noise reduction speaker structure according to claim 1, characterized in that: A dust cap (10) is arranged on the left side of the elastic wave (3), and the left side of the voice coil (4) passes through the right side of the elastic wave (3) and extends to the inner cavity of the dust cap (10).

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