CN112423202A - High-power ultra-thin loudspeaker - Google Patents

High-power ultra-thin loudspeaker Download PDF

Info

Publication number
CN112423202A
CN112423202A CN202011280721.4A CN202011280721A CN112423202A CN 112423202 A CN112423202 A CN 112423202A CN 202011280721 A CN202011280721 A CN 202011280721A CN 112423202 A CN112423202 A CN 112423202A
Authority
CN
China
Prior art keywords
face
basin
fixedly connected
voice coil
outer ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011280721.4A
Other languages
Chinese (zh)
Inventor
蔡禄军
叶卫华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Jiefu Electroacoustic Co Ltd
Original Assignee
Wuxi Jiefu Electroacoustic Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuxi Jiefu Electroacoustic Co Ltd filed Critical Wuxi Jiefu Electroacoustic Co Ltd
Priority to CN202011280721.4A priority Critical patent/CN112423202A/en
Publication of CN112423202A publication Critical patent/CN112423202A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • H04R9/04—Construction, mounting, or centering of coil
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/22—Clamping rim of diaphragm or cone against seating
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

The invention belongs to the technical field of loudspeakers, in particular to a high-power ultra-thin loudspeaker, which comprises a basin frame, U-shaped iron, a permanent magnet, a magnetic pole piece, a voice coil, a positioning support piece and a sound basin, wherein the U-shaped iron is arranged on the basin frame; the inner bottom surface of the basin stand is provided with a central hole, and a U-iron outer ring is fixedly connected in the central hole; the upper end surface of the U iron is provided with a groove, the center position of the inner bottom surface of the groove is fixedly connected with one end surface of the permanent magnet, and the other end surface of the permanent magnet is fixedly connected with the magnetic pole piece; a gap is reserved between the outer ring of the magnetic pole piece and the inner side wall of the groove, and a voice coil is arranged in the gap; the outer ring at the lower end of the voice coil is slidably connected into the gap, and the outer ring at the upper end of the voice coil is fixedly connected with the inner ring at the upper end of the positioning support piece; the lower end face outer ring of the positioning support piece is fixedly connected to the inner bottom face of the basin frame, the upper end of the positioning support piece is fixedly connected to the center of the lower end face of the sound basin, the outer edge of the lower end face of the sound basin is fixedly connected to the position of the upper end face of the basin frame, the upper end face of the sound basin is flush with the upper end face of the basin frame, and the diameter of the upper end face of the sound basin is the same as the length and the width of the inner side wall of the upper end face of the basin frame.

Description

High-power ultra-thin loudspeaker
Technical Field
The invention belongs to the technical field of loudspeakers, and particularly relates to a high-power ultra-thin loudspeaker.
Background
With the popularization of notebook computers and LED televisions, many similar electronic products tend to be increasingly thinner. For this reason, the speaker used in these electronic products also needs to be thin. However, when the volume of the speaker is reduced, especially when the thickness of the speaker is reduced, the bearing power of the speaker is correspondingly reduced, and thus the use requirement cannot be met.
Meanwhile, after the volume of the loudspeaker is reduced, the sound quality of the loudspeaker is limited, the traditional bass loudspeaker has higher treble, or when the treble is reduced, the lowest resonance frequency F0 is higher, or the power is lower, so that the low frequency cannot be well played, particularly, the bass loudspeaker used on a television has comprehensive and higher requirements on the height, the power, the lowest resonance frequency F0 and other parameters of the bass loudspeaker, and the existing loudspeaker cannot meet the use requirement. Therefore, there is a need for improvements in current speakers.
Disclosure of Invention
In order to overcome the shortcomings of the prior art and solve the problems described in the background art, the present invention provides a high power ultra-thin speaker.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a high-power ultra-thin loudspeaker, which comprises a basin frame, U iron, a permanent magnet, a magnetic pole piece, a voice coil, a positioning support piece and a sound basin, wherein the U iron is arranged on the basin frame; the inner bottom surface of the basin stand is provided with a central hole, and a U-iron outer ring is fixedly connected in the central hole; an annular concave part is formed in the outer ring of the U-shaped iron, the outer ring of the concave part of the U-shaped iron is fixedly connected with the inner ring of the central hole, and the lower end face of the U-shaped iron is flush with the lower end face of the basin stand; the upper end surface of the U iron is provided with a groove, the center position of the inner bottom surface of the groove is fixedly connected with one end surface of the permanent magnet, and the other end surface of the permanent magnet is fixedly connected with the magnetic pole piece; a gap is reserved between the outer ring of the magnetic pole piece and the inner side wall of the groove, and a voice coil is arranged in the gap; the outer ring at the lower end of the voice coil is slidably connected into the gap, and the outer ring at the upper end of the voice coil is fixedly connected with the inner ring at the upper end of the positioning support piece; the positioning support piece is in a convex design, the lower end face outer ring of the positioning support piece is fixedly connected to the inner bottom face of the basin frame, the upper end of the positioning support piece is fixedly connected to the center position of the lower end face of the sound basin, and the outer edge of the lower end face of the sound basin is fixedly connected to the position of the upper end face of the basin frame.
Preferably, the upper end face of the sound basin is flush with the upper end face of the basin frame, and the diameter of the upper end face of the sound basin is the same as the length and the width of the inner side wall of the upper end face of the basin frame.
Preferably, the surplus of the voice coil is designed to be a return opening, and the diameter of the voice coil is designed to be large-caliber.
Preferably, a through hole is formed in the side wall of the supporting column between the upper end and the lower end of the basin frame and is used for penetrating through a wire on the voice coil.
Preferably, the upper end face of the positioning support piece is provided with a first horizontal end portion, the positioning support piece is fixedly connected to the lower end face of the sound basin through the first horizontal end portion, the lower end face of the positioning support piece is provided with a second horizontal end portion, and the positioning support piece is fixedly connected to the inner bottom face of the basin frame through the second horizontal end portion.
The invention has the technical effects and advantages that:
under the unchangeable condition of U indisputable thickness and the interior bottom surface thickness of basin frame, the outer lane rigid coupling of U indisputable sets up the centre bore at the interior bottom surface of basin frame, compares with the interior bottom surface through the direct rigid coupling of the lower extreme with the U iron, and the outer lane rigid coupling that adopts the U iron sets up the centre bore mode at the interior bottom surface of basin frame and is of value to more reducing the whole thickness of speaker.
The positioning support piece adopts a convex design, the positioning support piece is arranged along with the U iron, the permanent magnet and the magnetic pole piece in the loudspeaker, and the positioning support piece can occupy less three-dimensional space in the limited space in the loudspeaker, so that the integral thickness of the loudspeaker is reduced.
According to the calculation formula f 0-1/2 pi Mmscms-1/2 of the lowest resonance frequency and the calculation formula Mmr of the radiation quality Mmr-2.67 rho a3, the edge of the cone is tightly attached to the upper end face of the cone frame, so that the caliber of the cone is designed to be maximized, the numerical value of the lowest resonance frequency f0 can be effectively reduced, and the sound effect quality of the loudspeaker is improved.
The design of returning the mouth is done to the surplus nothing of voice coil loudspeaker voice coil, can reduce the effective motion height of voice coil loudspeaker voice coil, also can prevent that the voice coil loudspeaker voice coil from touching the bottom of U iron to and the diameter of voice coil loudspeaker voice coil adopts the heavy-calibre design, effectively reduces the amplitude of voice coil loudspeaker voice coil, and the voice coil loudspeaker voice coil enlarges simultaneously, and vibration system's weight increases, and the numerical value of minimum resonant frequency F0 also can reduce thereupon.
The positioning support piece is fixedly connected with the lower end face of the sound basin through a first horizontal end portion, the inner bottom face of the basin frame is fixedly connected with a second horizontal end portion, the contact face between the positioning support piece and the basin frame is increased, the stability between the positioning support piece and the basin frame is improved, and the situation that the connecting position between the positioning support piece and the basin frame is remained with a gap to influence the sound effect of the loudspeaker is avoided.
Drawings
The invention is further described with reference to the following figures and embodiments.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is an internal structural view of the present invention;
FIG. 4 is a cross-sectional view of the present invention;
in the figure: the voice coil loudspeaker comprises a basin frame 1, a central hole 11, a fixing hole 12, a support column 141, a through hole 142, a U-shaped iron 2, a concave part 21, a groove 22, a permanent magnet 3, a magnetic pole piece 4, a voice coil 5, a positioning support piece 6, a first horizontal end part 61, a second horizontal end part 62 and a voice basin 7.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the following embodiments.
As shown in fig. 1 to 4, the high-power ultra-thin speaker of the present invention includes a frame 1, a U-shaped iron 2, a permanent magnet 3, a magnetic pole piece 4, a voice coil 5, a positioning support piece 6, and a cone 7; the inner bottom surface of the basin stand 1 is provided with a central hole 11, and an outer ring of U-shaped iron 2 is fixedly connected in the central hole 11; an annular concave part 21 is formed in the outer ring of the U-shaped iron 2, the outer ring of the concave part 21 of the U-shaped iron 2 is fixedly connected with the inner ring of the central hole 11, and the lower end face of the U-shaped iron 2 is flush with the lower end face of the basin stand 1; a groove 22 is formed in the upper end face of the U-shaped iron 2, the center of the inner bottom face of the groove 22 is fixedly connected with one end face of the permanent magnet 3, and the other end face of the permanent magnet 3 is fixedly connected with the magnetic pole piece 4; a gap is reserved between the outer ring of the magnetic pole piece 4 and the inner side wall of the groove 22, and a voice coil 5 is arranged in the gap; the outer ring of the lower end of the voice coil 5 is slidably connected into the gap, and the outer ring of the upper end of the voice coil 5 is fixedly connected with the inner ring of the upper end of the positioning support piece 6; the positioning support piece 6 is in a convex design, the lower end surface outer ring of the positioning support piece 6 is fixedly connected to the inner bottom surface of the basin frame 1, the upper end of the positioning support piece 6 is fixedly connected to the center position of the lower end surface of the sound basin 7, and the lower end surface outer edge of the sound basin 7 is fixedly connected to the position of the upper end surface of the basin frame 1; the conventional loudspeaker product is that the U iron 2 is arranged outside the frame 1, the loudspeaker of the invention changes the U iron 2 from the outside of the frame 1 to the inside, under the condition that the thickness of the U iron 2 is not changed with the thickness of the inner bottom surface of the frame 1, the outer ring of the U iron 2 is fixedly connected in the central hole 11 arranged on the inner bottom surface of the frame 1, compared with the condition that the lower end of the U iron 2 is directly fixedly connected on the inner bottom surface of the frame 1, the mode that the outer ring of the U iron 2 is fixedly connected in the central hole 11 arranged on the inner bottom surface of the frame 1 is more beneficial to reducing the whole thickness of the loudspeaker, and the positioning support sheet 6 of the conventional loudspeaker product adopts the common flat plate type design, and aiming at the loudspeaker of the invention, the positioning support sheet 6 of the flat plate type design can occupy more three-dimensional space in the loudspeaker and can not reduce the whole thickness of the loudspeaker, and the positioning support sheet 6 adopts the convex type design, The permanent magnet 3 and the magnetic pole piece 4 are arranged in a placing space, and the positioning support piece 6 can occupy less three-dimensional space in the limited space inside the loudspeaker, so that the overall thickness of the loudspeaker is reduced.
As a specific embodiment of the invention, the upper end surface of the sound cone 7 is flush with the upper end surface of the basin stand 1, and the diameter of the upper end surface of the sound cone 7 is the same as the length and width of the inner side wall of the upper end surface of the basin stand 1; the lower the lowest resonance frequency F0 parameter of the loudspeaker is, the better the bass effect of the loudspeaker is, and the calculation formula of the lowest resonance frequency is F0-1/2 pi MmsCms-1/2, and it can be seen from the formula that the value of the lowest resonance frequency F0 is inversely proportional to the equivalent compliance Cms and the equivalent mass Mms of the loudspeaker vibration system, that is, the higher the value of the equivalent compliance Cms and the equivalent mass Mms is, the lower the value of the low resonance frequency F0 is, and the calculation formula of the equivalent mass Mms is Mm-Mm1+Mm2+2Mmr wherein Mm1Is the mass of the voice coil 5, Mm2In order to locate the equivalent mass of the branch piece 6, Mmr is the radiation mass, the calculation formula of the radiation mass Mmr is Mmr-2.67 ρ a3, ρ is the air density, a is the radius of the cone 7, and in sum, the smaller the value of the lowest resonance frequency F0 is, the larger the caliber of the loudspeaker is as much as possible, therefore, the edge of the cone 7 is closely attached to the upper end face of the cone frame 1, the caliber of the cone 7 is designed to be maximized, and the number of the lowest resonance frequency F0 is reducedThe value is obtained.
As a specific embodiment of the present invention, the remainder of the voice coil 5 is designed as a return port, and the diameter of the voice coil 5 is designed with a large caliber; the design of returning the mouth is done to the surplus nothing of voice coil loudspeaker voice coil 5, can reduce voice coil loudspeaker voice coil 5's effective motion height, also can prevent that voice coil loudspeaker voice coil 5 from touching the bottom of U indisputable 2 to and voice coil loudspeaker voice coil 5's diameter adopts the heavy-calibre design, effectively reduces voice coil loudspeaker voice coil 5's amplitude, and voice coil loudspeaker voice coil 5 enlarges simultaneously, and vibration system's weight increases, and the numerical value of minimum resonant frequency F0 also can reduce thereupon.
As a specific embodiment of the present invention, a through hole 142 is formed on a side wall of the supporting column 141 between the upper end and the lower end of the frame 1, and the through hole 142 is used for penetrating through a wire on the voice coil 5; through the through hole 142 formed on the side wall of the supporting pillar 141, the conductive wire of the voice coil 5 is electrically connected to the external conductive wire.
As a specific embodiment of the present invention, the upper end surface of the positioning support piece 6 is provided with a first horizontal end portion 61, the positioning support piece 6 is fixedly connected to the lower end surface of the sound basin 7 through the first horizontal end portion 61, the lower end surface of the positioning support piece 6 is provided with a second horizontal end portion 62, and the positioning support piece 6 is fixedly connected to the inner bottom surface of the basin stand 1 through the second horizontal end portion 62; the lower terminal surface of sound basin 7 is fixed connection through a horizontal end 61 to location support piece 6 to and through No. two horizontal end 62 fixed connections at the interior bottom surface position of basin frame 1, the contact surface between increase location support piece 6 and the basin frame 1, thereby improve the stability between location support piece 6 and the basin frame 1, avoid the hookup location between location support piece 6 and the basin frame 1 to remain the space, influence the audio of speaker.
The working principle is as follows: the conventional loudspeaker product is that the U iron 2 is arranged outside the frame 1, the loudspeaker of the invention changes the U iron 2 from the outside of the frame 1 to the inside, under the condition that the thickness of the U iron 2 is not changed with the thickness of the inner bottom surface of the frame 1, the outer ring of the U iron 2 is fixedly connected in the central hole 11 arranged on the inner bottom surface of the frame 1, compared with the condition that the lower end of the U iron 2 is directly fixedly connected on the inner bottom surface of the frame 1, the mode that the outer ring of the U iron 2 is fixedly connected in the central hole 11 arranged on the inner bottom surface of the frame 1 is more beneficial to reducing the whole thickness of the loudspeaker, and the positioning support sheet 6 of the conventional loudspeaker product adopts the common flat plate type design, and aiming at the loudspeaker of the invention, the positioning support sheet 6 of the flat plate type design can occupy more three-dimensional space in the loudspeaker and can not reduce the whole thickness of the loudspeaker, and the positioning support sheet 6 adopts the convex type design, The permanent magnet 3 and the magnetic pole piece 4 are arranged in a placing space, and the positioning support piece 6 can occupy less three-dimensional space in the limited space in the loudspeaker, so that the thickness of the whole loudspeaker is reduced;
and the lower the lowest resonance frequency F0 parameter of the loudspeaker, the better the bass effect of the loudspeaker, and the calculation formula of the lowest resonance frequency is F0-1/2 pi MmsCms-1/2, it can be seen from the formula that the value of the lowest resonance frequency F0 is inversely proportional to the equivalent compliance Cms and the equivalent mass Mms of the loudspeaker vibration system, i.e. the higher the values of the equivalent compliance Cms and the equivalent mass Mms, the lower the value of the low resonance frequency F0 is, and the calculation formula of the equivalent mass Mms is Mm-Mm1+Mm2+2Mmr wherein Mm1Is the mass of the voice coil 5, Mm2In order to locate the equivalent mass of the branch piece 6, Mmr is the radiation mass, the calculation formula of the radiation mass Mmr is Mmr-2.67 ρ a3, ρ is the air density, a is the radius of the cone 7, and in conclusion, the smaller the value of the resonance frequency F0 is, the larger the caliber of the loudspeaker is as much as possible, therefore, the edge of the cone 7 is tightly attached to the upper end face of the cone frame 1, the caliber of the cone 7 is designed to be maximized, and the value of the lowest resonance frequency F0 is reduced;
and the remaining margin of the voice coil 5 is designed to be a return opening, so that the effective motion height of the voice coil can be reduced, the voice coil 5 can be prevented from touching the bottom of the U iron 2, the diameter of the voice coil 5 adopts a large-caliber design, the amplitude of the voice coil 5 is effectively reduced, meanwhile, the voice coil 5 is enlarged, the weight of a vibration system is increased, and the numerical value of the lowest resonance frequency F0 can be reduced accordingly.
Furthermore, the positioning support piece 6 is fixedly connected with the lower end face of the sound basin 7 through a first horizontal end 61, and is fixedly connected with the inner bottom face of the basin frame 1 through a second horizontal end 62, the contact face between the positioning support piece 6 and the basin frame 1 is increased, and therefore the stability between the positioning support piece 6 and the basin frame 1 is improved, and the situation that the connecting position between the positioning support piece 6 and the basin frame 1 is left with a gap to influence the sound effect of a loudspeaker is avoided.
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 considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (5)

1. A high-power ultra-thin loudspeaker comprises a basin frame (1), U-shaped iron (2), a permanent magnet (3), a magnetic pole piece (4), a voice coil (5), a positioning support piece (6) and a sound basin (7); the method is characterized in that: a central hole (11) is formed in the inner bottom surface of the basin frame (1), and an outer ring of the U-shaped iron (2) is fixedly connected in the central hole (11); an annular concave part (21) is formed in the outer ring of the U iron (2), the outer ring of the concave part (21) of the U iron (2) is fixedly connected with the inner ring of the central hole (11), and the lower end face of the U iron (2) is flush with the lower end face of the basin stand (1); a groove (22) is formed in the upper end face of the U iron (2), the center of the inner bottom face of the groove (22) is fixedly connected with one end face of the permanent magnet (3), and the other end face of the permanent magnet (3) is fixedly connected with the magnetic pole piece (4); a gap is reserved between the outer ring of the magnetic pole piece (4) and the inner side wall of the groove (22), and a voice coil (5) is arranged in the gap; the outer ring of the lower end of the voice coil (5) is slidably connected into the gap, and the outer ring of the upper end of the voice coil (5) is fixedly connected with the inner ring of the upper end of the positioning support piece (6); the positioning support piece (6) is in a convex design, the lower end face outer ring of the positioning support piece (6) is fixedly connected to the inner bottom face of the basin frame (1), the upper end of the positioning support piece (6) is fixedly connected to the center of the lower end face of the sound basin (7), and the lower end face outer edge of the sound basin (7) is fixedly connected to the upper end face of the basin frame (1).
2. A high power ultra-thin speaker as claimed in claim 1, wherein: the upper end face of the sound basin (7) is flush with the upper end face of the basin frame (1), and the diameter of the upper end face of the sound basin (7) is the same as the length and the width of the inner side wall of the upper end face of the basin frame (1).
3. A high power ultra-thin speaker as claimed in claim 1, wherein: the surplus of voice coil (5) is made into the design of returning the mouth, and the diameter of voice coil (5) adopts the heavy-calibre design.
4. The high power ultra-thin speaker as claimed in claim 4, wherein: through holes (142) are formed in the side wall of the supporting column (141) between the upper end and the lower end of the basin frame (1), and the through holes (142) are used for penetrating through wires on the voice coil (5).
5. A high power ultra-thin speaker as claimed in claim 1, wherein: the up end of location piece (6) is equipped with horizontal tip (61) No. one, and location piece (6) through horizontal tip (61) rigid coupling lower terminal surface at sound basin (7), and the lower terminal surface of location piece (6) is equipped with horizontal tip (62) No. two, and location piece (6) through horizontal tip (62) rigid coupling in the interior bottom surface position of basin frame (1).
CN202011280721.4A 2020-11-16 2020-11-16 High-power ultra-thin loudspeaker Pending CN112423202A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011280721.4A CN112423202A (en) 2020-11-16 2020-11-16 High-power ultra-thin loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011280721.4A CN112423202A (en) 2020-11-16 2020-11-16 High-power ultra-thin loudspeaker

Publications (1)

Publication Number Publication Date
CN112423202A true CN112423202A (en) 2021-02-26

Family

ID=74831323

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011280721.4A Pending CN112423202A (en) 2020-11-16 2020-11-16 High-power ultra-thin loudspeaker

Country Status (1)

Country Link
CN (1) CN112423202A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2405390Y (en) * 1999-11-27 2000-11-08 林和鼎 Ultra-thin type loud-speaker
JP2009094912A (en) * 2007-10-11 2009-04-30 Panasonic Corp Speaker
CN101742385A (en) * 2009-12-24 2010-06-16 无锡杰夫电声有限公司 Thin type electrodynamic loudspeaker
CN102638751A (en) * 2012-04-18 2012-08-15 无锡杰夫电声有限公司 Thin type speaker with inverted positioning support chip
CN102638752A (en) * 2012-05-14 2012-08-15 无锡杰夫电声有限公司 High-power ultrathin speaker
US20180288530A1 (en) * 2015-10-16 2018-10-04 Goertek Inc. Loudspeaker
CN209250884U (en) * 2018-12-27 2019-08-13 深圳市康力森实业有限公司 The high-power TV woofer of new type superthin

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2405390Y (en) * 1999-11-27 2000-11-08 林和鼎 Ultra-thin type loud-speaker
JP2009094912A (en) * 2007-10-11 2009-04-30 Panasonic Corp Speaker
CN101742385A (en) * 2009-12-24 2010-06-16 无锡杰夫电声有限公司 Thin type electrodynamic loudspeaker
CN102638751A (en) * 2012-04-18 2012-08-15 无锡杰夫电声有限公司 Thin type speaker with inverted positioning support chip
CN102638752A (en) * 2012-05-14 2012-08-15 无锡杰夫电声有限公司 High-power ultrathin speaker
US20180288530A1 (en) * 2015-10-16 2018-10-04 Goertek Inc. Loudspeaker
CN209250884U (en) * 2018-12-27 2019-08-13 深圳市康力森实业有限公司 The high-power TV woofer of new type superthin

Similar Documents

Publication Publication Date Title
CN208241874U (en) Loudspeaker
CN109218927A (en) Sounding device
CN110366080B (en) Speaker and audio device
CN212628404U (en) Loudspeaker
CN208675521U (en) Double moving-coil speakers
WO2022048692A1 (en) Dual-cone small speaker
US10694294B2 (en) Metal diaphragm and speaker
US20220078559A1 (en) Speaker and terminal device
CN207022197U (en) A kind of loudspeaker and audio amplifier
CN211378243U (en) Ultrathin loudspeaker, loudspeaker box and electronic product
CN112423202A (en) High-power ultra-thin loudspeaker
CN209250884U (en) The high-power TV woofer of new type superthin
CN217721456U (en) Coaxial loudspeaker
US11665480B2 (en) Speaker
CN217721457U (en) Coaxial loudspeaker
CN216391389U (en) Plane type vibrating diaphragm loudspeaker with smooth frequency response curve
CN206611571U (en) Loudspeaker
WO2022048689A1 (en) Multi-cone small speaker
CN206061072U (en) Earphone
CN218450489U (en) Coaxial loudspeaker box
CN111654791A (en) Loudspeaker module and electronic equipment
CN208143457U (en) Moving-coil structure and earphone
CN213754948U (en) Loudspeaker
CN217985398U (en) Thin woofer with stable voice coil
CN216531741U (en) Wireless earphone

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20210226

RJ01 Rejection of invention patent application after publication