WO2003107717A1 - Haut-parleur a ruban - Google Patents

Haut-parleur a ruban Download PDF

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Publication number
WO2003107717A1
WO2003107717A1 PCT/CN2003/000452 CN0300452W WO03107717A1 WO 2003107717 A1 WO2003107717 A1 WO 2003107717A1 CN 0300452 W CN0300452 W CN 0300452W WO 03107717 A1 WO03107717 A1 WO 03107717A1
Authority
WO
WIPO (PCT)
Prior art keywords
diaphragm
wedge
band
speaker
magnetic circuit
Prior art date
Application number
PCT/CN2003/000452
Other languages
English (en)
Chinese (zh)
Inventor
Huanzhong Ding
Original Assignee
Huanzhong Ding
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 Huanzhong Ding filed Critical Huanzhong Ding
Priority to AU2003242206A priority Critical patent/AU2003242206A1/en
Publication of WO2003107717A1 publication Critical patent/WO2003107717A1/fr

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Classifications

    • 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

Definitions

  • the present invention relates to an electric loudspeaker used in an audio device, and in particular, to a belt speaker ° Background technology
  • tweeters currently on the market include paper cone tweeters, dome tweeters, horn tweeters, flat film tweeters, Haier-type tweeters, etc. These speakers actually belong to the scope of dynamic coil speakers, and are generally produced. The processes are relatively simple, the cost is cheap, and the market share is high. However, from the perspective of the use effect, its sensitivity is poor, especially in the high-frequency sound range, it is easy to be distorted, the high-amplitude frequency is relatively narrow, and ear noise often occurs. There is also a class of tweeters such as electrostatic speakers and 'plasma speakers', which have been developed for a long time, but there are major problems in the application or production of such speakers, so this type of speaker has not been available for a long time. popular.
  • a band speaker and a band microphone were proposed.
  • the principle is to place a conductive tape in the magnetic field of a magnetic gap.
  • the alternating current in the tape generates a corresponding electric force under the action of the magnetic field to make the tape vibrate.
  • the band is made of aluminum foil, so it is called aluminum band diaphragm speaker.
  • the aluminum diaphragm diaphragm speakers appearing on the market technically overcome the shortcomings of the high frequency amplitude and easy distortion of general dynamic coil speakers, and meet the needs of some high-fidelity concert halls, entertainment venues or music lovers.
  • the common defects of aluminum strip diaphragm speakers are: 1.
  • An object of the present invention is to provide a band speaker with advanced structure and simple and reliable installation of a diaphragm. In addition, another object of the present invention is to reduce the production cost of the band speaker.
  • Another object of the present invention is to optimize the magnetic circuit design of the band speaker.
  • the speaker according to the present invention includes a speaker housing, a magnetic circuit system composed of a magnet and a yoke, an impedance matcher, a diaphragm, and a panel.
  • the diaphragm is fixed to the speaker housing by a wedge-shaped pressing assembly.
  • the wedge-shaped pressing piece assembly includes: a diaphragm mounting reference piece having a mounting reference surface adjacent to one surface of the diaphragm; a pressing piece adjacent to the other surface of the diaphragm; And a wedge-shaped member, the wedge-shaped member is adjacently clamped in the mounting reference member.
  • the wedge-shaped pressing piece assembly is open at the upper end, and further includes a pressing piece fitted in the opening, and the pressing piece can be made into a T shape or other shapes, such as an "I" shape, or It can also be directly made into a rectangular pressing block that can be fitted into the mounting reference.
  • the mounting reference member may not be open-mouthed at the upper end, but may be formed into a fixed frame structure closed around.
  • the wedge-shaped tablet assembly may further include a integrally molded connection portion, through which the aluminum's diaphragm can be coupled to the impedance matcher secondary connection, and the wedge-shaped tablet assembly can also be fixed to the connection portion by Speaker housing.
  • the design scheme of the wedge-shaped tablet assembly with the above structure can reduce the technical difficulty of installing the aluminum ribbon diaphragm, and can avoid the damage to the aluminum ribbon diaphragm that may occur in the traditional process.
  • the overall structure of the present invention adopts precise mold technology, using engineering plastic as the main structural part, and fixing the main component yoke of the speaker in the main structural part of engineering plastic.
  • This method of using precision injection-molded engineering plastic as the main structure of the aluminum diaphragm diaphragm speaker is suitable for mass production, which can greatly reduce the production cost; since the yoke is no longer used as the main structural component, the magnetic circuit can be taken into account The rationality of the design; It is convenient to complete the design of a series of products of one unit, two units, and different power levels, to meet the needs of various customers, and providing personalized services will bring positive results.
  • FIG. 1 is a perspective view of a wedge-shaped tablet assembly.
  • Figure 2 is a schematic diagram of the shape of the "C" type magnetic circuit, which includes three shapes of sub-picture 2-1, sub-picture 2-2, and sub-picture 2-3.
  • FIG. 3 is a schematic exploded view of the overall structure of a preferred embodiment of the band speaker according to the present invention.
  • FIG. 4 is a cross-sectional view of a preferred embodiment of a band speaker according to the present invention.
  • FIG. 5 is a perspective view of a main structure of a band speaker according to the present invention. detailed description
  • the belt speaker is mainly composed of six parts: diaphragm 1. wedge-shaped pressing assembly 2. magnetic circuit system with magnet and yoke assembly 3. impedance matcher 4. speaker housing 5. panel 6.
  • the band speaker is an aluminum ribbon diaphragm speaker.
  • the diaphragm 1 used in the speaker is made of aluminum foil, and its specification range is (0. 011 ⁇ 0. 013) X (7 ⁇ 1) X (70 ⁇ 150) mm, which is specifically designed according to different power needs.
  • the wedge-shaped pressing piece assembly includes: a mounting reference piece 21 having a mounting reference surface adjacent to a surface of the diaphragm 1; a pressing piece 24, aluminum The other side of the diaphragm 1 is adjacent to the pressing piece 24; a wedge 22 is embedded in the mounting reference piece 21 adjacent to the pressing piece 24.
  • the wedge-shaped member 22 is formed into a shape with a small thickness at one end and a large thickness at the other end, so that the assembly of the diaphragm is pressed into the mounting reference member 21 to fix the diaphragm.
  • the pressing piece 24 is preferably trapezoidal, so that one side of the pressing piece 24 and the wedge-shaped member 22 can be easily fitted.
  • the mounting reference member 21 is formed into an opening at the upper end.
  • the mounting reference member 21 should further include a connector that can be fitted into the opening of the mounting reference member 21. ⁇ 23.
  • the pressing block 23 is formed in a T shape, but those skilled in the art should understand that the pressing block 23 may also be formed in other shapes.
  • the above-mentioned wedge-shaped tablet assembly also includes a connecting portion 25, as shown in FIG. 2, the connecting portion 25 is integrally molded with the diaphragm mounting reference member.
  • the connecting portion 25 is integrally molded with the diaphragm mounting reference member.
  • the diaphragm 1 is positioned in the mounting reference member 21, however, the pressing piece 24 is pressed on the aluminum strip diaphragm 1, and precise positioning is required. Then, the T-shaped pressing block 23 is inserted into the opening of the mounting reference member 21, Finally, the wedge 22 is pushed in to fix the aluminum diaphragm.
  • the advantage of using the wedge-shaped pressing piece assembly 2 to fix the aluminum diaphragm diaphragm 1 is that the aluminum diaphragm diaphragm fixing section 13 and the impedance matcher extension section 43 are only pressed by the equal hook pressure perpendicular to the fixed surface during the pressing process. In this way, uneven pressure and distortion easily caused by screwing can be avoided, and the thin aluminum strip can be prevented from being injured and displaced during installation.
  • the housing of the aluminum diaphragm diaphragm speaker in the preferred embodiment may be molded from engineering plastic.
  • the outer shell is basically divided into three parts: a front part 51, a middle part 52, and a rear part 53. There are various embodiments for the molding of the shell. First, the front part 51, the middle part 52, and the rear part 53 of the engineering plastic shell can be injection-molded into three parts, and then installed and connected together. Second, the front part can be molded.
  • the portion 51 and the middle portion 52 are phantom-shaped, or the middle portion 52 and the rear portion 53 are phantom-shaped, however, they are connected to the separately molded rear portion 53 or the front portion 51 by fasteners; Third, the front portion 51, the middle portion 52 and the rear portion 53 may be phantom-shaped. (See Figure 3 for details).
  • the yoke 32 can be injection-molded and fixed in the housing during the injection molding process. Because the yoke 32 is directly fixed in the shell during the injection molding process, compared with the previous solution, the requirement of tolerance matching between the yoke 32 and the shell 5 can be reduced (see Figure 5 for details), and the subsequent process can be simplified.
  • the wedge-shaped tablet assembly 2 is fixed to the housing by the connection portion 25 in the above-mentioned embodiment.
  • the wedge-shaped tablet assembly 2 may be body-molded on the outer casing.
  • this preferred embodiment uses a "C" -shaped magnetic circuit system, in which the magnet 31 can be a high-performance magnet, and the yoke 32 can be a pure iron.
  • Figure 2-1 shows the cross-sectional shape of the magnet 31 as an isosceles trapezoid + rectangle, located at the opening of the "C" yoke 32, in the middle of the air gap between the two magnets 31, forming the NS pole.
  • region shown in broken line 2-1 of aluminum is a diaphragm unit of work (referred to as "basic") 0 BRIEF another form of a cell type "C” shown in magnetic circuit 2-2, which magnet 31B has a rectangular cross-sectional shape, which is located in the middle of the "C" stroke.
  • the yoke 32 is bent from the opening of the "C” shape to connect with the magnet 31 to form a magnetic loop.
  • the dotted line between the two yoke 31 is shown
  • the area is a diaphragm working area unit (referred to as "a unit type").
  • Figure 2-3 shows a "C” -shaped magnetic circuit with a longer pull-down length and an increased air gap distance.
  • a magnet 31C with a double isosceles trapezoidal + rectangular cross-section is added in the middle to form a magnetic circuit with two diaphragms ( Referred to as "two-unit type").
  • the above three shapes can be freely selected and designed according to the requirements of different power and appearance.
  • the impedance matcher system uses a manganese-zinc-ferrite soft E-type soft magnetic core 41. Different types of soft magnetic cores are selected according to the output power.
  • the primary winding is used in 0.7-lmm high-strength enameled wire. Generally speaking, the primary winding For 45-70 turns, the secondary winding is 4 ⁇ 8 turns of pure aluminum strip with a thickness of 0.2-0.25 mm.
  • the impedance matching device 4 is placed in a box at the rear part 53 of the plastic case and filled with resin.
  • the impedance matching section 43 extends through the case of the box 53 and leads to the diaphragm mounting reference piece-connecting part 25.
  • the heat generated by the impedance matcher extension 43 and the aluminum strip diaphragm can be dissipated through the wedge-shaped pressing piece assembly, and the primary coil terminal 42 of the impedance matcher is connected with two wiring screws and fixed in the main structure shell
  • the rear part 53 is where the high-frequency signal source is connected (see Figures 4 and 5 for details).
  • the aluminum strip diaphragm tweeter not only guarantees the "high-fidelity" good quality of its high-pitched sound range, but also can use modern mature production technology to achieve the goal of mass production, thereby greatly reducing production costs And sales prices to meet people's increasing social and cultural life and material life needs, it can be called "universal" speakers.
  • connection part and the mounting reference piece are not integrated, but are connected together by a connecting member, or the mounting reference piece may be integrally molded on the speaker housing. Therefore, those of ordinary skill in the art can recognize that the above description is only exemplary, and the scope of the present invention will be defined by the appended claims.

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

Abstract

L'invention concerne un haut-parleur à ruban, et plus particulièrement un haut-parleur à ruban d'aluminium. Ledit haut-parleur comprend : un boîtier, un système à circuit magnétique assemblé par un aimant et une culasse, un adaptateur d'impédance, une membrane et un panneau. Dans ce haut-parleur à ruban, la fixation de la membrane sur le boîtier du haut-parleur est réalisée au moyen d'un ensemble copeau pressé cunéiforme qui comprend un ensemble de montage de membrane sur un plan de référence adjacent à une surface de la membrane, et un ensemble cunéiforme pincé et introduit dans le plan de référence pour le montage. Par rapport aux haut-parleurs à ruban de la technique antérieure, l'invention permet d'optimiser la structure de production et la technique industrielle, d'allonger la durée de la membrane, et d'accroître la précision de montage.
PCT/CN2003/000452 2002-06-13 2003-06-11 Haut-parleur a ruban WO2003107717A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003242206A AU2003242206A1 (en) 2002-06-13 2003-06-11 A ribbon tape loudspeaker

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN02218148.2 2002-06-13
CN02218148U CN2553577Y (zh) 2002-06-13 2002-06-13 普及型铝带振膜高音扬声器

Publications (1)

Publication Number Publication Date
WO2003107717A1 true WO2003107717A1 (fr) 2003-12-24

Family

ID=4766338

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2003/000452 WO2003107717A1 (fr) 2002-06-13 2003-06-11 Haut-parleur a ruban

Country Status (3)

Country Link
CN (1) CN2553577Y (fr)
AU (1) AU2003242206A1 (fr)
WO (1) WO2003107717A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ301578B6 (cs) * 2005-02-25 2010-04-21 Šroll@Ludek Reproduktorová soustava vyzarující válcovou akustickou vlnu

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102572656B (zh) * 2010-12-30 2016-06-22 Ask工业S.P.A. 带式扬声器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4484037A (en) * 1981-05-26 1984-11-20 U.S. Philips Corporation Ribbon-type electro-acoustic transducer with low distortion and improved sensitivity
CN2047871U (zh) * 1989-03-02 1989-11-15 中国科学院东海研究站 全塑密封水下及蒸汽浴室扬声器
US5325439A (en) * 1993-10-13 1994-06-28 Smiley Jack R Loudspeaker apparatus
JPH08126967A (ja) * 1994-10-31 1996-05-21 Sony Corp 圧着治具、圧着方法、及び圧着治具の設計方法
CN2363450Y (zh) * 1998-12-02 2000-02-09 蓬莱海皇集团公司 铝带式高音扬声器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4484037A (en) * 1981-05-26 1984-11-20 U.S. Philips Corporation Ribbon-type electro-acoustic transducer with low distortion and improved sensitivity
CN2047871U (zh) * 1989-03-02 1989-11-15 中国科学院东海研究站 全塑密封水下及蒸汽浴室扬声器
US5325439A (en) * 1993-10-13 1994-06-28 Smiley Jack R Loudspeaker apparatus
JPH08126967A (ja) * 1994-10-31 1996-05-21 Sony Corp 圧着治具、圧着方法、及び圧着治具の設計方法
CN2363450Y (zh) * 1998-12-02 2000-02-09 蓬莱海皇集团公司 铝带式高音扬声器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ301578B6 (cs) * 2005-02-25 2010-04-21 Šroll@Ludek Reproduktorová soustava vyzarující válcovou akustickou vlnu

Also Published As

Publication number Publication date
CN2553577Y (zh) 2003-05-28
AU2003242206A1 (en) 2003-12-31

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