AU2021103363A4 - Flexible ultra-thin loudspeaker - Google Patents

Flexible ultra-thin loudspeaker Download PDF

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Publication number
AU2021103363A4
AU2021103363A4 AU2021103363A AU2021103363A AU2021103363A4 AU 2021103363 A4 AU2021103363 A4 AU 2021103363A4 AU 2021103363 A AU2021103363 A AU 2021103363A AU 2021103363 A AU2021103363 A AU 2021103363A AU 2021103363 A4 AU2021103363 A4 AU 2021103363A4
Authority
AU
Australia
Prior art keywords
substrate
film layer
conductive
thin
thin film
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.)
Ceased
Application number
AU2021103363A
Inventor
Hongrun Chen
Shucheng Duan
Jiacheng Lin
Ding LU
Lifu Shen
Yanyan SHEN
Ruiqi WANG
Hungchun Wu
Qing Zhang
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.)
Ningbo University of Technology
Original Assignee
Ningbo University of Technology
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 Ningbo University of Technology filed Critical Ningbo University of Technology
Priority to AU2021103363A priority Critical patent/AU2021103363A4/en
Application granted granted Critical
Publication of AU2021103363A4 publication Critical patent/AU2021103363A4/en
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00Electrostatic transducers
    • H04R19/02Loudspeakers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/14Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00Diaphragms for electromechanical transducers; Cones
    • H04R7/02Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04Plane diaphragms
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00Diaphragms for electromechanical transducers; Cones
    • H04R7/02Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04Plane diaphragms
    • H04R7/06Plane diaphragms comprising a plurality of sections or layers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06Loudspeakers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/025Diaphragms comprising polymeric materials
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10General applications
    • H04R2499/11Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10General applications
    • H04R2499/15Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

The invention discloses a flexible ultra-thin loudspeaker, which belongs to the technical field of loudspeakers. It includes a substrate, a conductive thin film layer is arranged on one side of the substrate, the conductive thin film layer is a square double helix loop structure, and a strong permanent magnet device is arranged on the other side of the substrate, the conductive film layer is also provided with conductive terminals for connecting the signal processor and the audio processor. Compared with the prior art, the invention has the advantages of flexible large area, lightness and thinness, and can be cut according to actual needs (only need to reset the conductive segment), and meet the needs of various situations. The process is simple, the controllability is strong, the sound effect is good, simple and fashionable, convenient and practical, and can bring great economic benefits. 1/1 FIGURES 2 22 21 4 Figure 1 1 Figure 2

Description

1/1
FIGURES
2
22 21 4 Figure 1
1 Figure 2
Flexible ultra-thin loudspeaker
TECHNICAL FIELD
The invention belongs to the technical field of loudspeakers, and in particular
relates to a flexible ultra-thin loudspeaker.
BACKGROUND
The traditional speaker structure is a conical structure. The structure of the
conical speaker is divided into a cone with a vibrating plate and a cavity structure that
produces resonance. However, the traditional loudspeaker structure has problems such
as large weight and large volume, and it is more troublesome to transport and install,
and it is increasingly not suitable for the fashionable and brisk life requirements of
modern citizens. The above-mentioned problems need to be solved urgently.
SUMMARY
In view of the deficiencies in the prior art, the invention provides a flexible
ultra-thin loudspeaker. The thin-film speaker has the advantages of large flexible area,
lightness and thinness, and can be cut arbitrarily according to actual needs.
In order to solve the above technical problems, the present invention is solved by
the following technical solutions: the flexible ultra-thin loudspeaker includes a
substrate, a conductive thin film layer is arranged on one side of the substrate, the
conductive thin film layer is a square double helix loop structure, and a strong
permanent magnet device is arranged on the other side of the substrate, the conductive
film layer is also provided with conductive terminals for connecting the signal
processor and the audio processor.
In order to obtain better technical effects, further technical improvements are: the
conductive thin film layer comprises a spiral loop circuit J and a spiral loop circuit
,the spiral loop circuit J and the spiral loop circuit @ are connected.
In order to obtain better technical effects, further technical improvements are: the
substrate is a flexible plate.
In order to obtain better technical effects, further technical improvements are: the
substrate is a high-molecular polymer insulating plate.
In order to obtain better technical effects, further technical improvements are: the
high molecular polymer insulating plate is made of PT or PET or PI.
In order to obtain better technical effects, further technical improvements are: the
conductive thin film layer is aluminum foil or a single gold copper film.
In order to obtain better technical effects, further technical improvements are: the
strong permanent magnet device is a neodymium iron boron magnet block.
The beneficial effect of the invention is that the thin-film speaker is prepared by
using three-dimensional printing technology, some key process parameters in the
synthesis process can be greatly improved in the full frequency range of the sound by
appropriately controlling, and the process has high repeatability; the thin-film speaker
has the advantages of flexible large area, lightness and thinness, and can be cut
according to actual needs (only need to reset the conductive segment), and meet the
needs of various situations. The process is simple, the controllability is strong, the
sound effect is good, simple and fashionable, convenient and practical, and can bring
great economic benefits.
BRIEF DESCRIPTION OF THE FIGURES
Fig.1 is a schematic front view of the invention.
Fig. 2 is a schematic cross-sectional view of the section along A- A in Fig. 1.
DESCRIPTION OF THE INVENTION
The invention will be further described in detail below in conjunction with the
drawings and specific embodiments.
Example: Refer to FIG. 1 and FIG. 2 for a specific example of the film speaker
of the invention. The flexible thin-film speaker includes a substrate 1, and the
substrate 1 is a flexible high-molecular polymer insulating plate. The square spiral
conductive metal thin film layer 2 is provided on one surface of the substrate 1, and
the conductive film layer 2 has a square double spiral loop structure, the strong
permanent magnet device 3 is provided on the other side of the substrate 1, the
conductive metal thin film layer 2 is aluminum foil layer or single gold copper film, a
strong permanent magnet device 3 is provided on the other side of the substrate 1, and
a conductive terminal 4 for connecting a signal processor and an audio processor is
also provided on the conductive film layer 2. The conductive terminals 4 are one or
two. .
Further, the conductive thin film layer 2 comprises a spiral loop circuit D 21
and a spiral loop circuit @ 22, the spiral loop circuit ( 21 and the spiral loop
circuit @ 22 are connected.
Further, the substrate can be made of heat-resistant materials such as PT, PET, or
PI.
When the external signal processor and audio processor are connected through
conductive terminals and the film speaker starts to provide audio signals, the charge is
transferred to the square spiral conductive metal layer of the thin-film speaker, the
metal thin film layer can be charged, and the metal thin film layer in the middle can
vibrate, which then compresses the air to produce sound.
The thin-film speaker is prepared by using three-dimensional printing technology,
some key process parameters in the synthesis process can be greatly improved in the
full frequency range of the sound by appropriately controlling, and the process has
high repeatability; the thin-film speaker has the advantages of flexible large area,
lightness and thinness, and can be cut according to actual needs (only need to reset the
conductive segment), and meet the needs of various situations. The process is simple,
the controllability is strong, the sound effect is good, simple and fashionable,
convenient and practical, and can bring great economic benefits.
In the above technical solution, the thin-film speaker can be applied to mobile
phone covers, wallpapers, photo frames, coasters, murals or lighting cover products.
In the above technical solution, the thin-film speaker can be applied to slogans,
banners or other media display.
In the above technical solution, the thin-film speaker can be applied to earphones,
mobile phones, computers, electronic watches or electronic eye glasses.
The above-listed are only specific embodiments of the present invention.
Obviously, the present invention is not limited to the above example. All
modifications that can be directly derived or imagined by a person of ordinary skill in the art from the disclosure of the present invention shall fall within the protection scope of the present invention.

Claims (7)

THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS:
1. The flexible ultra-thin loudspeaker, characterized in that it includes a substrate
(1), a conductive thin film layer (2) is on one side of substrate (1), conductive thin
film layer (2) is a square double helix loop structure, a strong permanent magnet
device (3) is set on the other side of substrate (1), the conductive thin film layer (2) is
also provided with conductive terminals (4) for connecting the signal processor and
the audio processor.
2. The flexible ultra-thin loudspeaker according to claim 1, characterized in that
the conductive thin film layer (2) comprises a spiral loop circuit D (21) and a spiral
loop circuit @ (22), the spiral loop circuit ( (21) and the spiral loop circuit@
(22) are connected.
3. The flexible ultra-thin loudspeaker according to claim 1, characterized in that
the substrate (1) is a flexible plate.
4. The flexible ultra-thin loudspeaker according to claim 1 or 3, characterized in
that the substrate (1) is a high-molecular polymer insulating plate.
5. The flexible ultra-thin loudspeaker according to claim 4, characterized in that
the high molecular polymer insulating plate is made of PT or PET or PI.
6. The flexible ultra-thin loudspeaker according to claim 1 or 2, characterized in
that the conductive thin film layer (2) is aluminum foil or a single gold copper film.
7. The flexible ultra-thin sound generating device according to claim 1,
characterized in that the strong permanent magnet device (3) is a neodymium iron
boron magnet block.
AU2021103363A 2021-06-15 2021-06-15 Flexible ultra-thin loudspeaker Ceased AU2021103363A4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2021103363A AU2021103363A4 (en) 2021-06-15 2021-06-15 Flexible ultra-thin loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU2021103363A AU2021103363A4 (en) 2021-06-15 2021-06-15 Flexible ultra-thin loudspeaker

Publications (1)

Publication Number Publication Date
AU2021103363A4 true AU2021103363A4 (en) 2021-08-05

Family

ID=77076067

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2021103363A Ceased AU2021103363A4 (en) 2021-06-15 2021-06-15 Flexible ultra-thin loudspeaker

Country Status (1)

Country Link
AU (1) AU2021103363A4 (en)

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MK22 Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry