CN113709638A - Anti-electromagnetic interference loudspeaker system and anti-interference method thereof - Google Patents
Anti-electromagnetic interference loudspeaker system and anti-interference method thereof Download PDFInfo
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- CN113709638A CN113709638A CN202111012681.XA CN202111012681A CN113709638A CN 113709638 A CN113709638 A CN 113709638A CN 202111012681 A CN202111012681 A CN 202111012681A CN 113709638 A CN113709638 A CN 113709638A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/022—Cooling arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention discloses an anti-electromagnetic interference loudspeaker system and an anti-interference method thereof, belonging to the technical field of anti-electromagnetic interference loudspeaker systems. According to the anti-electromagnetic interference loudspeaker system and the anti-interference method thereof, the direction of the magnetic field is controlled, the electromagnetic field is prevented from interfering a PCB (printed circuit board), a tuning net, a washer and a voice coil, the moving iron generates an alternating magnetic field by utilizing the T iron, the moving iron vibrates, the vibrating piece controls the vibration, the moving iron is demagnetized in the vibration process, the electromagnetic interference is avoided, the heat is taken away by the outer radiating piece and the inner radiating piece, and meanwhile, the shielding radiating assembly is matched, so that the anti-electromagnetic effect is achieved in the radiating process.
Description
Technical Field
The invention relates to the technical field of anti-electromagnetic interference loudspeaker systems, in particular to an anti-electromagnetic interference loudspeaker system and an anti-interference method thereof.
Background
In the prior art, the principle of hearing sound is that vibration in the air transmits vibration to the eardrum through the external auditory meatus, and the vibration formed by the eardrum drives the auditory nerve of a human, thereby sensing the vibration of sound. When the existing bone conduction speaker works, the sound is generally transmitted to the auditory nerve of a person through the skin, subcutaneous tissues and bones of the person, so that the person can hear the sound. When a bone conduction speaker of the related art is operated, a housing to which a diaphragm is fixed via a fixing block vibrates along with the diaphragm, and therefore the vibration surface of the housing is brought into contact with the back of the ear, the cheek, the forehead, or the like, and the vibration is transmitted as a bone conduction sound, so that a sound can be heard clearly.
CN201510056517.7, the speaker is classified into various speakers according to the principle of electro-acoustic conversion, and the electromagnetic speaker is widely used. However, for the occasions with larger electromagnetic radiation, the loudspeaker can be greatly interfered, the electromagnetic shielding loudspeaker is provided with the shielding cover outside the electromagnetic induction coil of the body, and the external electromagnetic signals can be shielded because the electromagnetic shielding loudspeaker is made of metal, so that the tone quality of the loudspeaker is slightly influenced by the external electromagnetic waves when the loudspeaker works, and the anti-electromagnetic interference performance of the loudspeaker is greatly improved.
There are the following problems:
however, during use, internal coils or other electromagnetic signals interfere with the loudspeaker system, causing it to affect its sound reproduction quality.
Disclosure of Invention
The present invention is directed to a speaker system with anti-electromagnetic interference and an anti-interference method thereof, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an anti-electromagnetic interference's speaker system, includes the electromagnetic shield cover, and the inside of electromagnetic shield cover is equipped with the shielding partition board of separating left and right space, imbeds the speaker device in the right space of electromagnetic shield cover, sets up coil induction power component in the left space of electromagnetic shield cover to outside cover at the electromagnetic shield cover has shielding radiator unit, and wherein shielding radiator unit is connected with coil induction power component.
Furthermore, the loudspeaker device comprises a vibration degaussing assembly and a sound production device, wherein the sound production device comprises a PCB (printed circuit board), a tuning net, a washer, a front cover and a voice coil, the front cover is clamped and fixed at one end of the electromagnetic shielding sleeve, a closed space is formed between the front cover and the electromagnetic shielding sleeve, and the PCB, the tuning net, the washer and the voice coil are embedded into the space;
the vibration degaussing assembly comprises T iron, moving iron and a diaphragm, one end of the T iron is fixed on the PCB, the other end of the T iron penetrates through the tuning net, the washer and the voice coil, the diaphragm seals the joint of the front cover and the electromagnetic shielding sleeve, and the front cover is connected with the moving iron through an oscillating sheet.
Furthermore, a slotted hole communicated with the electromagnetic shielding sleeve is formed in the front cover, the diaphragm covers the slotted hole, and the moving iron and the T iron are respectively positioned on two sides of the diaphragm.
Further, the coil induction power assembly comprises a coil, a bearing seat, a stator, a rotor, a sealing plate and a support rod, wherein the bearing seat is fixed on the side surface of the shielding partition plate, the coil is wound outside the stator, and the coil and the stator are fixed on the shielding partition plate outside the bearing seat;
one end of the rotor is inserted into the bearing seat, the other end of the rotor penetrates through the stator and the sealing plate to be connected with the cover plate, and the cover plate is radially and fixedly provided with symmetrical support rods.
Furthermore, the shielding heat dissipation assembly comprises a shielding ring, outer heat dissipation sheets and inner cooling sheets, the outer heat dissipation sheets and the inner cooling sheets are arranged along the radial direction of the shielding ring, the shielding ring is sleeved on the outer side of the electromagnetic shielding sleeve, the inner cooling sheets are also fixed on the inner wall of the shielding ring along the radial direction, and the outer heat dissipation sheets and the inner cooling sheets are aligned one by one.
Furthermore, the ball is embedded into the end face, facing the shielding ring, of the inner radiating fin, and the inner radiating fin is movably connected with the outer peripheral face of the electromagnetic shielding sleeve through the ball.
Furthermore, one end of the shielding ring is extended from the port of the electromagnetic shielding sleeve, and the other end of the supporting rod is connected with the inner wall of the electromagnetic shielding sleeve.
Further, the outside of the T iron is covered by an electromagnetic shielding layer, and the T iron is exposed close to the port of the diaphragm.
The invention provides another technical scheme, which comprises an anti-interference method of an anti-electromagnetic interference loudspeaker system, and the anti-interference method comprises the following steps:
s1: in the electrified state, the T iron is also electrified, the T iron has a magnetic conduction phenomenon, and the magnetism of the T iron can only be emitted from the exposed port through the emission action of the diaphragm and the moving iron due to the fact that the electromagnetic shielding layer is coated on the outer portion of the T iron;
s2: the moving iron is positioned in front of the T iron, and the magnetic field can be changed when the signal passes through the T iron, so that the moving iron vibrates, and the magnetic interference vibration generated by the sounding device is eliminated through the vibration of the moving iron;
s3: when outer fin and interior fin are rotatory along the shielding circle, outer fin and interior fin take away the heat and cooperate shielding radiator unit when, shielding circle and shielding baffle are also shielded with the magnetism that the coil circular telegram produced.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention provides an anti-electromagnetic interference loudspeaker system and an anti-interference method thereof, wherein in a sound unit, a T iron mainly has the function of conducting magnetism under the condition of power-on, so that in the loudspeaker system, the magnetism generated by the T iron can cause electromagnetic interference on the system, the T iron is covered by an electromagnetic shielding layer through the outside of the T iron, a port of the T iron close to a diaphragm is exposed, the outside of the T iron is covered by the electromagnetic shielding layer, only the port can generate magnetism, the direction of a magnetic field is controlled, the interference of the electromagnetic field on a PCB (printed circuit board), a tuning net, a washer and a voice coil is avoided, the moving iron generates an alternating magnetic field by utilizing the T iron, the moving iron vibrates, an oscillating piece controls the oscillation, and the moving iron is demagnetized in the vibrating process to avoid the electromagnetic interference.
2. The invention provides an anti-electromagnetic interference loudspeaker system and an anti-interference method thereof.A shielding ring is sleeved outside an electromagnetic shielding sleeve, inner radiating fins are also fixed on the inner wall of the shielding ring along the radial direction, the outer radiating fins are aligned with the inner radiating fins one by one, the outer radiating fins and the inner radiating fins are arranged along the radial direction, heat generated on the electromagnetic shielding sleeve is taken away through the rotation of the outer radiating fins and the inner radiating fins, the shielding ring and the electromagnetic shielding sleeve are arranged by adopting double-layer shielding, so that the electromagnetic shielding effect is enhanced, the outer radiating fins and the inner radiating fins are matched with a shielding radiating component while taking away the heat, and the shielding ring and a shielding clapboard shield the magnetism generated by electrifying a coil, so that the anti-electromagnetic effect is increased during heat dissipation.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is an overall exploded view of the present invention;
FIG. 3 is a partial block diagram of the present invention;
FIG. 4 is a block diagram of the shielding heat sink assembly of the present invention;
fig. 5 is a structural view of the moving iron of the present invention.
In the figure: 1. an electromagnetic shielding sleeve; 11. a shielding separator; 2. a speaker device; 21. a vibration degaussing assembly; 211. t iron; 212. moving iron; 213. a membrane; 22. a sound producing device; 221. a PCB board; 222. a tuning net; 223. washer; 224. a front cover; 225. a voice coil; 3. a coil inductive power assembly; 31. a coil; 32. a bearing seat; 33. a stator; 34. a rotor; 341. a cover plate; 35. a sealing plate; 36. a support bar; 4. a shielding heat dissipation assembly; 41. a shielding ring; 42. an outer heat-dissipating sheet; 43. and an inner heat sink.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an anti-electromagnetic interference speaker system includes an electromagnetic shielding sleeve 1, a shielding partition 11 for partitioning a left space and a right space is disposed inside the electromagnetic shielding sleeve 1, a speaker device 2 is embedded in the right space of the electromagnetic shielding sleeve 1, a coil inductive power assembly 3 is disposed in the left space of the electromagnetic shielding sleeve 1, and a shielding heat dissipation assembly 4 is sleeved outside the electromagnetic shielding sleeve 1, wherein the shielding heat dissipation assembly 4 is connected with the coil inductive power assembly 3.
The loudspeaker device 2 comprises a vibration degaussing assembly 21 and a sounding device 22, wherein the sounding device 22 comprises a PCB 221, a tuning net 222, a washer 223, a front cover 224 and a voice coil 225, the front cover 224 is clamped into one end of the electromagnetic shielding sleeve 1 to be fixed, a closed space is formed between the front cover 224 and the electromagnetic shielding sleeve 1, and the PCB 221, the tuning net 222, the washer 223 and the voice coil 225 are embedded into the space.
Referring to fig. 2 and 5, the vibration degaussing assembly 21 includes a T-iron 211, a moving iron 212, and a diaphragm 213, one end of the T-iron 211 is fixed on the PCB 221, the other end of the T-iron 211 passes through a tuning net 222, a washer 223, and a voice coil 225, the T-iron 211 is a component part formed by a voice unit, in the voice unit, the T-iron 211 mainly functions to conduct magnetism when the voice box is powered on, the magnetic field disappears after the voice box is powered off, and the magnetism disappears immediately, so that the magnetism generated by the T-iron 211 in the speaker system can cause electromagnetic interference to the system, the T-iron 211 is covered by an electromagnetic shielding layer through the outside of the T-iron 211, the port of the T-iron 211 close to the diaphragm 213 is exposed, the outside of the T-iron 211 is covered by the electromagnetic shielding layer, only the port can generate magnetism, the direction of the magnetic field is controlled, and the electromagnetic field is prevented from interfering with the PCB 221, the tuning net 222, the washer 223, and the voice coil 225.
The diaphragm 213 seals the joint between the front cover 224 and the electromagnetic shielding case 1, and the front cover 224 is connected with the moving iron 212 through the oscillating piece.
The front cover 224 is provided with a slot hole communicated with the electromagnetic shielding sleeve 1, the diaphragm 213 covers the slot hole, the moving iron 212 and the T iron 211 are respectively positioned at two sides of the diaphragm 213, the moving iron 212 utilizes the T iron 211 to generate an alternating magnetic field, the moving iron 212 vibrates, the vibration piece controls the vibration, and the moving iron 212 is demagnetized in the vibration process to avoid electromagnetic interference.
The coil induction power assembly 3 comprises a coil 31, a bearing seat 32, a stator 33, a rotor 34, a sealing plate 35 and a support rod 36, wherein the bearing seat 32 is fixed on the side surface of the shielding partition plate 11, the coil 31 is wound outside the stator 33, the coil 31 and the stator 33 are fixed on the shielding partition plate 11 outside the bearing seat 32, and the coil 31 generates electromagnetic induction in a power-on state so as to drive the rotor 34 to rotate in the bearing seat 32.
One end of the rotor 34 is inserted into the bearing seat 32, the other end of the rotor 34 passes through the stator 33 and the sealing plate 35 to be connected with the cover plate 341, the cover plate 341 is radially fixed with symmetrical support rods 36, the cover plate 341 seals one end of the electromagnetic shielding sleeve 1 for protection, and the cover plate 341 and the support rods 36 are driven to synchronously rotate by the rotation of the stator 33 to transmit power.
Referring to fig. 3-4, the shielding heat dissipation assembly 4 includes a shielding ring 41, an outer heat dissipation plate 42 and an inner heat dissipation plate 43, the outer heat dissipation plate 42 and the inner heat dissipation plate 43 are disposed along a radial direction of the shielding ring 41, the shielding ring 41 is sleeved outside the electromagnetic shielding sleeve 1, the inner wall of the shielding ring 41 is also fixed with the inner heat dissipation plate 43 along the radial direction, the outer heat dissipation plate 42 and the inner heat dissipation plate 43 are aligned one by one, the outer heat dissipation plate 42 and the inner heat dissipation plate 43 are disposed along the radial direction, heat generated on the electromagnetic shielding sleeve 1 is taken away by the rotation of the outer heat dissipation plate 42 and the inner heat dissipation plate 43, and the shielding ring 41 and the electromagnetic shielding sleeve 1 are disposed in a double-layer shielding manner, so as to enhance the electromagnetic shielding effect.
The inner heat sink 43 is fitted with balls on the end surface facing the shield ring 41, and the inner heat sink 43 is movably connected to the outer peripheral surface of the electromagnetic shield case 1 via the balls, so that the frictional force of rotation is reduced by the balls.
One end of the shielding ring 41 is extended from the port of the electromagnetic shielding sleeve 1, the other end of the supporting rod 36 is connected with the inner wall of the electromagnetic shielding sleeve 1, and the supporting rod 36 drives the shielding ring 41 to rotate.
The anti-interference method of the anti-electromagnetic interference loudspeaker system comprises the following steps:
the method comprises the following steps: in the electrified state, the T iron 211 is also electrified, the T iron 211 has a magnetic conduction phenomenon, and the magnetism of the T iron 211 can only be emitted from the exposed port and acts with the moving iron 212 through the membrane 213 due to the fact that the T iron 211 is coated with the electromagnetic shielding layer;
step two: the moving iron 212 is positioned in front of the T iron 211, and the magnetic field can be changed when the signal passes through the T iron 211, so that the moving iron 212 vibrates, and the magnetic interference vibration generated by the sounding device 22 is eliminated through the vibration of the moving iron 212;
step three: when the outer heat dissipation fins 42 and the inner heat dissipation fins 43 rotate along the shielding ring 41, the outer heat dissipation fins 42 and the inner heat dissipation fins 43 carry away heat and cooperate with the shielding heat dissipation assembly 4, and the shielding ring 41 and the shielding partition 11 shield magnetism generated by energizing the coil 31.
In conclusion; the invention relates to an anti-electromagnetic interference loudspeaker system and an anti-interference method thereof.A T iron 211 in a sound unit has the main function of conducting magnetism under the condition of electrification, so that the magnetism generated by the T iron 211 in the loudspeaker system can cause electromagnetic interference to the system, the T iron 211 is covered by an electromagnetic shielding layer through the outside of the T iron 211, a port of the T iron 211 close to a diaphragm 213 is exposed, the outside of the T iron 211 is covered by the electromagnetic shielding layer, only the port can generate magnetism, the direction of a magnetic field is controlled, the interference of the electromagnetic field to a PCB (printed circuit board) 221, a tuning net 222, a washer 223 and a voice coil 225 is avoided, the moving iron 212 utilizes the T iron 211 to generate an alternating magnetic field, the moving iron 212 vibrates, an oscillating piece controls the oscillation, and the moving iron 212 is demagnetized in the vibration process to avoid the electromagnetic interference.
The shielding ring 41 is sleeved outside the electromagnetic shielding sleeve 1, the inner wall of the shielding ring 41 is also fixed with the inner radiating fins 43 along the radial direction, the outer radiating fins 42 and the inner radiating fins 43 are aligned one by one, the outer radiating fins 42 and the inner radiating fins 43 are arranged along the radial direction, heat generated on the electromagnetic shielding sleeve 1 is taken away through the rotation of the outer radiating fins 42 and the inner radiating fins 43, the shielding ring 41 and the electromagnetic shielding sleeve 1 are arranged in a double-layer shielding mode, so that the electromagnetic shielding effect is enhanced, the outer radiating fins 42 and the inner radiating fins 43 are matched with the shielding radiating assembly 4 while taking away the heat, and the shielding ring 41 and the shielding partition plate 11 shield magnetism generated by electrifying the coil 31, so that the electromagnetic resistance effect is improved during heat dissipation.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (9)
1. The utility model provides an anti-electromagnetic interference's speaker system, its characterized in that, including electromagnetic shield cover (1), the inside of electromagnetic shield cover (1) is equipped with shielding baffle (11) of separating left and right space, embedding speaker device (2) in the right space of electromagnetic shield cover (1), sets up coil induction power component (3) in the left space of electromagnetic shield cover (1) to there is shielding radiator unit (4) outside cover in electromagnetic shield cover (1), wherein shielding radiator unit (4) are connected with coil induction power component (3).
2. The anti-electromagnetic interference loudspeaker system as claimed in claim 1, wherein the loudspeaker device (2) comprises a vibration degaussing assembly (21) and a sounding device (22), the sounding device (22) comprises a PCB (221), a tuning net (222), a washer (223), a front cover (224) and a voice coil (225), the front cover (224) is clamped into one end of the electromagnetic shielding sleeve (1) for fixing, a closed space is formed between the front cover (224) and the electromagnetic shielding sleeve (1), and the PCB (221), the tuning net (222), the washer (223) and the voice coil (225) are embedded into the space;
the vibration degaussing assembly (21) comprises a T iron (211), a moving iron (212) and a diaphragm (213), one end of the T iron (211) is fixed on a PCB (221), the other end of the T iron (211) penetrates through a tuning net (222), a washer (223) and a voice coil (225), the diaphragm (213) seals the joint of a front cover (224) and an electromagnetic shielding sleeve (1), and the front cover (224) is internally connected with the moving iron (212) through an oscillating sheet.
3. An anti-electromagnetic interference speaker system as claimed in claim 2, wherein the front cover (224) is provided with a slot communicating with the electromagnetic shielding case (1), the diaphragm (213) covers the slot, and the moving iron (212) and the T-iron (211) are respectively located on both sides of the diaphragm (213).
4. An anti-electromagnetic interference speaker system according to claim 1, wherein the coil induction power unit (3) comprises a coil (31), a bearing housing (32), a stator (33), a rotor (34), a sealing plate (35) and a support rod (36), the bearing housing (32) is fixed on the side of the shielding partition (11), the coil (31) is wound on the outside of the stator (33), and the coil (31) and the stator (33) are fixed on the shielding partition (11) outside the bearing housing (32);
one end of the rotor (34) is inserted into the bearing seat (32), the other end of the rotor (34) penetrates through the stator (33) and the sealing plate (35) to be connected with the cover plate (341), and the cover plate (341) is radially and fixedly provided with symmetrical supporting rods (36).
5. An anti-electromagnetic interference speaker system according to claim 4, wherein the shielding heat sink assembly (4) comprises a shielding ring (41), a plurality of outer heat sinks (42) and inner heat sinks (43), the plurality of outer heat sinks (42) and the plurality of inner heat sinks (43) are arranged along a radial direction of the shielding ring (41), the shielding ring (41) is sleeved on the outer side of the electromagnetic shielding sleeve (1), the inner wall of the shielding ring (41) is also fixed with the plurality of inner heat sinks (43) along the radial direction, and the outer heat sinks (42) and the plurality of inner heat sinks (43) are aligned one by one.
6. An EMI resistant loudspeaker system as claimed in claim 5, characterised in that the inner fins (43) are provided with balls embedded in the end faces of the shield ring (41), the inner fins (43) being movably connected to the outer peripheral surface of the shield case (1) by the balls.
7. An anti-electromagnetic interference loudspeaker system as claimed in claim 6, characterized in that one end of the shielding ring (41) extends from the end of the electromagnetic shielding sleeve (1), and the other end of the supporting rod (36) is connected to the inner wall of the electromagnetic shielding sleeve (1).
8. An anti-electromagnetic interference speaker system as claimed in claim 2 wherein the T-iron (211) is externally covered by an electromagnetic shield, with the T-iron (211) exposed near the end of the diaphragm (213).
9. An anti-tamper method for an anti-electromagnetic-interference speaker system according to any one of claims 1-8, comprising the steps of:
s1: in the electrified state, the T iron (211) is also electrified, the T iron (211) generates a magnetic conduction phenomenon, and the magnetism can only be emitted from the exposed port through the diaphragm (213) and the moving iron (212) due to the fact that the T iron (211) is coated with the electromagnetic shielding layer;
s2: the moving iron (212) is positioned in front of the T iron (211), and the signal can change the magnetic field when passing through the T iron (211), so that the moving iron (212) vibrates, and the magnetic interference vibration generated by the sounding device (22) is eliminated through the vibration of the moving iron (212);
s3: when the outer radiating fins (42) and the inner radiating fins (43) rotate along the shielding ring (41), the outer radiating fins (42) and the inner radiating fins (43) take away heat and are matched with the shielding radiating assembly (4), and the shielding ring (41) and the shielding partition plate (11) shield magnetism generated by electrifying the coil (31).
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