Sound coil capable of preventing electromagnetic interference

Abstract

The utility model discloses an anti-electromagnetic interference sound coil, which comprises a sound basin stand and a through slot arranged at the center of the bottom surface of the sound basin stand. The isolation mechanism is arranged at the upper part of the interior of the sound box frame and comprises an isolation frame, and the isolation frame is rotatably mounted at the upper part of the interior of the sound box frame in an attached manner; a coil mechanism is arranged on the bottom surface of the sound box basin stand, the coil mechanism comprises a bearing platform, and a coil assembly is arranged at the top of the bearing platform. According to the sound coil capable of preventing electromagnetic interference, external electromagnetic interference is avoided through the rotatable isolation basin stand arranged in the sound basin stand, the main circulation slot is shielded and opened by the auxiliary circulation slot, and meanwhile, the filter arranged below the coil assembly filters the electromagnetic interference, so that the use effect of the sound coil is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sound coil technical field, concretely is a sound coil of preventing electromagnetic interference. BACKGROUND

[0002] The sound coil is an important component of a loudspeaker (sound), which is wound by a dense wire (usually enameled wire), and the direct definition is that the loudspeaker passes through the coil of electric current, which is an important component of the mechanical wave system of the dynamic loudspeaker, spreads through vibration and is perceived as a sound signal by the human ear.

[0003] The utility model with publication number CN216749575U discloses an audio transformer, the transformer is small in size, reasonable in structure, convenient to manufacture, long in service life and high in reliability, has excellent characteristics such as waterproofness, dustproofness and anti-vibration impact, and has the advantages of small size, reasonable structure, convenient manufacturing, long service life, high reliability, excellent characteristics such as waterproofness, dustproofness and anti-vibration impact.

[0004] However, the above-mentioned audio transformer with electromagnetic interference prevention has the following problems in actual use: although the stress is small after solidification by the pouring sealant, it can be well bonded and solidified with the embedded parts, but such installation method cannot guarantee the vibration work of the vibrating paper basin and the elastic folded ring inside the sound unit, and at the same time, the fully closed method cannot isolate electromagnetic interference from the inside, which affects the sound effect during use.

[0005] Therefore, we propose a sound coil that prevents electromagnetic interference in order to solve the problems mentioned above. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a sound coil that prevents electromagnetic interference, in order to solve the problem that the stress is small after solidification by the pouring sealant, which can be well bonded and solidified with the embedded parts, but such installation method cannot guarantee the vibration work of the vibrating paper basin and the elastic folded ring inside the sound unit, and at the same time, the fully closed method cannot isolate electromagnetic interference from the inside, which affects the sound effect during use.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a sound coil that prevents electromagnetic interference, comprising a sound stand and a through slot hole opened at the center position of the bottom surface of the sound stand; further comprising:

[0008] An isolation mechanism is arranged above the inside of the sound stand, and the isolation mechanism comprises an isolation stand, which is rotatably attached to the inside of the sound stand;

[0009] The bottom surface of the sound basin frame is provided with a coil mechanism, and the coil mechanism comprises a bearing platform, and the top of the bearing platform is provided with a coil assembly.

[0010] Preferably, the isolation mechanism comprises a guide chute, and the guide chute is opened at the edge above the sound basin frame, and a pulling strip plate is slidably arranged inside the guide chute, and the outer end of the pulling strip plate extends to the outside of the sound basin frame.

[0011] Preferably, the isolation mechanism comprises an isolation basin, and the inner end of the isolation basin is fixedly connected to the outer end of the pulling strip plate, and the outer side of the isolation basin is provided with a plurality of secondary flow-through groove holes at equal angles, and the top end of the isolation basin is lower than the top end of the sound basin frame.

[0012] Preferably, the outer side of the middle part of the sound basin frame is provided with a plurality of primary flow-through groove holes at equal angles, and the primary flow-through groove holes are arranged in a corresponding distribution between the secondary flow-through groove holes on the outer side of the isolation basin, and the secondary flow-through groove holes are driven by the isolation basin to rotate to realize the coincidence and dislocation with the primary flow-through groove holes on the outer side of the sound basin frame, thereby reducing the interference of external equipment and electromagnetic.

[0013] Preferably, a tremor paper basin is fixedly arranged inside the upper part of the sound basin frame, and an elastic folding ring is fixedly arranged at the top end of the sound basin frame, and the installation and positioning of the tremor paper basin are realized through the elastic folding ring.

[0014] Preferably, a locking gland is fixedly arranged at the top end of the sound basin frame through bolts, and the locking gland is connected to the outer end of the elastic folding ring between the locking gland and the sound basin frame, and the locking gland is used to position the tremor paper basin and the elastic folding ring during the vibration process.

[0015] Preferably, the coil mechanism comprises a filter body, and the filter body is fixedly installed at the top end of the bearing platform, and the filter body is fixedly arranged at the bottom end of the coil assembly, and a dustproof cap is arranged at the top end of the coil assembly.

[0016] Preferably, the bearing platform of the coil mechanism is fixedly installed in the through groove hole opened in the bottom of the sound basin frame, and the filter body, the coil assembly and the dustproof cap above the bearing platform are all installed inside and below the sound basin frame, and the dustproof cap is fixedly connected with the tremor paper basin.

[0017] Compared with the prior art, the sound coil has the advantages that the isolation basin arranged inside the sound basin frame can avoid external electromagnetic interference, the primary flow-through groove holes are shielded and opened through the secondary flow-through groove holes, the filter arranged below the coil assembly filters electromagnetic interference, and the use effect of the sound coil is improved.

[0018] 1. The tremor paper basin is arranged above the sound basin stand, the tremor paper basin is connected to the top end of the sound basin stand through the elastic folding ring at the top end, and is fixedly installed on the top end of the sound basin stand through the locking gland connected by a bolt, and then the vibration of the tremor paper basin is conducted through the coil mechanism to generate sound in the sound generating process.

[0019] 2. The rotating dialing strip plate slides in the inside of the guide sliding groove, drives the isolation stand arranged in the inside of the sound basin stand to rotate, the auxiliary flow-through slot hole arranged in the inside of the isolation stand shields the inside of the main flow-through slot hole in the inside of the sound basin stand in the rotating process, and then the main flow-through slot hole arranged in the inside of the sound basin stand is closed to avoid the interference of external electromagnetism.

[0020] 3. The bearing platform is inserted into the inside bottom surface of the sound basin stand, the filter body, the coil assembly and the dustproof cap above the bearing platform enter the inside of the sound basin stand, the dustproof cap is connected to the inner end of the tremor paper basin, the coil assembly is prevented from sticking dust in the use process, and the coil assembly is filtered through the filter body at the bottom surface to avoid the influence of external electromagnetism. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0022] Figure 2 It is an isolation stand installation structure schematic view of the utility model;

[0023] Figure 3 It is a structure schematic view of the utility model after the isolation stand rotates;

[0024] Figure 4 It is a tremor paper basin and elastic folding ring connection structure schematic view of the utility model;

[0025] Figure 5 It is a whole explosion structure schematic view of the utility model;

[0026] Figure 6 It is a dustproof cap installation structure schematic view of the utility model. Figure 5

[0027] Figure 7 It is a dustproof cap installation structure schematic view of the utility model.

[0028] In the drawing: 1, sound basin stand; 2, through slot hole; 3, isolation stand; 4, bearing platform; 5, coil assembly; 6, guide sliding groove; 7, dialing strip plate; 8, auxiliary flow-through slot hole; 9, main flow-through slot hole; 10, tremor paper basin; 11, elastic folding ring; 12, locking gland; 13, filter body; 14, dustproof cap. DETAILED DESCRIPTION

[0029] ​The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0030] Please refer to Figure 1 Figure 7 The present application provides the following technical solutions:

[0031] Embodiment 1: In order to solve the problems existing in the actual use of the existing sound coil, therefore, the technical scheme is as follows: a sound coil capable of preventing electromagnetic interference, comprising a sound stand 1, a through slot 2 provided at the center of the bottom surface of the sound stand 1, a main flow-through slot 9 provided at the outer side of the middle part of the sound stand 1 at equal angles, a vice flow-through slot 8 provided at the outer side of an isolation stand 3 at equal angles, and a corresponding distribution between the main flow-through slot 9 and the vice flow-through slot 8, and the isolation stand 3 drives the vice flow-through slot 8 to rotate to coincide with or dislocate from the main flow-through slot 9 of the sound stand 1, thereby reducing the interference of external equipment and electromagnetic interference.

[0032] A vibration paper basin 10 is fixedly arranged at the upper part of the sound stand 1, and an elastic folding ring 11 is fixedly arranged at the top end of the sound stand 1, and the vibration paper basin 10 is installed and positioned by the elastic folding ring 11; a locking gland 12 is fixedly arranged at the top end of the sound stand 1 by bolts, and the locking gland 12 is connected to the outer end of the elastic folding ring 11 between the sound stand 1, and the locking gland 12 is used to position the vibration paper basin 10 and the elastic folding ring 11 during vibration.

[0033] As shown in Figure 1 Figure 5 The sound stand 1 is installed with the coil mechanism through the through slot 2 provided at the bottom, and the vibration paper basin 10 is arranged above the sound stand 1, and the vibration paper basin 10 is connected to the top end of the sound stand 1 through the elastic folding ring 11 at the top end, and the locking gland 12 connected by bolts is fixedly installed at the top end of the sound stand 1, thereby generating vibration of the vibration paper basin 10 through the coil mechanism during sound production to produce sound.

[0034] ​​In order to solve the problems existing in the actual use of the existing sound coil, the technical scheme is adopted in the embodiment, the inside upper portion of the sound stand 1 is provided with an isolation mechanism, the isolation mechanism comprises an isolation stand 3, and the isolation stand 3 is rotatably attached to the inside upper portion of the sound stand 1; the isolation mechanism comprises a guide sliding groove 6, the guide sliding groove 6 is arranged at the edge of the upper portion of the sound stand 1, a driving strip 7 is slidably arranged in the guide sliding groove 6, and the outer end of the driving strip 7 extends to the outside of the sound stand 1; the upper end edge of the isolation stand 3 is fixedly connected to the inner end of the driving strip 7, and the outer portion of the isolation stand 3 is provided with a secondary flow-through slot hole 8 at equal angles, and the top end of the isolation stand 3 is lower than the top end of the sound stand 1.

[0035] As shown in Figures 3-5 , when the sound stand 1 and the internal coil mechanism are prevented from electromagnetic interference by the isolation mechanism, the sound stand 1 is fixedly installed on the front face of the sound box body, the driving strip 7 penetrating the outside of the upper portion of the sound stand 1 is manually rotated to slide in the guide sliding groove 6, so that the driving strip 7 drives the isolation stand 3 arranged in the inside of the sound stand 1 to rotate, and the secondary flow-through slot hole 8 arranged in the inside of the isolation stand 3 is shielded on the inner side of the primary flow-through slot hole 9 in the inside of the sound stand 1 in the rotating process, thereby closing the primary flow-through slot hole 9 arranged in the inside of the sound stand 1 to avoid external electromagnetic interference.

[0036] In order to solve the problems existing in the actual use of the existing sound coil, the technical scheme is adopted in the embodiment, the bottom surface of the sound stand 1 is provided with a coil mechanism, the coil mechanism comprises a bearing platform 4, and the top portion of the bearing platform 4 is provided with a coil assembly 5; the coil mechanism comprises a filter body 13, the filter body 13 is fixedly installed on the top end of the bearing platform 4, the filter body 13 is fixedly arranged on the bottom end of the coil assembly 5, and the top end of the coil assembly 5 is provided with a dustproof cap 14; the bearing platform 4 of the coil mechanism is fixedly installed in the through slot hole 2 arranged in the bottom portion of the sound stand 1, the filter body 13, the coil assembly 5 and the dustproof cap 14 above the bearing platform 4 are all installed in the inside lower portion of the sound stand 1, and the dustproof cap 14 is fixedly connected with the tremolo paper stand 10.

[0037] As shown in Figure 1 , Figure 7As shown, the sound basin 1 installs the coil mechanism through the through slot 2 opened in the bottom, and the bearing platform 4 is inserted into the inner bottom surface of the sound basin 1, so that the filter body 13 above is connected with the coil assembly 5 and the dustproof cap 14 into the inside of the sound basin 1, the dustproof cap 14 is connected with the inner end of the tremolo paper basin 10, the coil assembly 5 is prevented from adhering dust in the use process, and meanwhile the coil assembly 5 is filtered through the filter body 13 on the bottom surface, so that the coil assembly 5 is prevented from being affected by external electromagnetism.

[0038] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An electromagnetic interference resistant acoustic coil, comprising an acoustic frame (1), and a through slot (2) formed in the center of the bottom surface of the acoustic frame (1); characterized in that Further comprising: An isolation mechanism is arranged above the inside of the acoustic frame (1), and the isolation mechanism comprises an isolation frame (3), which is rotatably attached to the inside of the acoustic frame (1); A coil mechanism is arranged on the bottom surface of the acoustic frame (1), and the coil mechanism comprises a bearing platform (4), and the top of the bearing platform (4) is provided with a coil assembly (5).

2. The electromagnetic interference resistant acoustic coil of claim 1, wherein: The isolation mechanism comprises a guide chute (6) formed on the edge above the acoustic frame (1), and a sliding bar (7) is slidably arranged in the inside of the guide chute (6), and the outer end of the sliding bar (7) extends to the outside of the acoustic frame (1).

3. The electromagnetic interference shielded acoustic coil of claim 2, wherein: The upper end edge of the isolation frame (3) is fixedly connected to the inner end of the sliding bar (7), and the outside of the isolation frame (3) is equally angularly provided with a secondary flow-through slot (8), and the top end of the isolation frame (3) is lower than the top end of the acoustic frame (1).

4. The electromagnetic interference shielded acoustic coil of claim 1, wherein: The middle outside of the acoustic frame (1) is equally angularly provided with a main flow-through slot (9), and the equally angularly provided main flow-through slot (9) and the secondary flow-through slot (8) on the outside of the isolation frame (3) are correspondingly arranged, and the secondary flow-through slot (8) is driven by the isolation frame (3) to rotate to coincide or dislocate with the main flow-through slot (9) on the outside of the acoustic frame (1), thereby reducing the interference of external equipment and electromagnetic.

5. The electromagnetic interference shielded acoustic coil of claim 4, wherein: A vibration paper basin (10) is fixedly arranged inside the top of the acoustic frame (1), and an elastic folding ring (11) is fixedly arranged on the top end of the acoustic frame (1), and the vibration paper basin (10) is installed and positioned by the elastic folding ring (11).

6. The electromagnetic interference shielded acoustic coil of claim 5, wherein: A locking gland (12) is fixedly arranged on the top end of the acoustic frame (1) by bolts, and the locking gland (12) is connected to the outer end of the elastic folding ring (11) between the acoustic frame (1), and the locking gland (12) is used to position the vibration paper basin (10) and the elastic folding ring (11) during vibration.

7. The electromagnetic interference shielded acoustic coil of claim 1, wherein: The coil mechanism comprises a filter body (13), which is fixedly installed on the top end of the bearing platform (4), and the filter body (13) is fixedly arranged on the bottom end of the coil assembly (5), and the top end of the coil assembly (5) is provided with a dust cap (14).

8. The electromagnetic interference shielded acoustic coil of claim 7, wherein: The bearing platform (4) of the coil mechanism is fixedly installed in the through slot (2) formed in the bottom of the acoustic frame (1), and the filter body (13), the coil assembly (5) and the dust cap (14) above the bearing platform (4) are all installed below the inside of the acoustic frame (1), and the dust cap (14) is fixedly connected with the vibration paper basin (10).

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