EP0860094A1 - Central or circumferential suspension for the moving assembly of a moving-coil loudspeaker - Google Patents

Central or circumferential suspension for the moving assembly of a moving-coil loudspeaker

Info

Publication number
EP0860094A1
EP0860094A1 EP96931716A EP96931716A EP0860094A1 EP 0860094 A1 EP0860094 A1 EP 0860094A1 EP 96931716 A EP96931716 A EP 96931716A EP 96931716 A EP96931716 A EP 96931716A EP 0860094 A1 EP0860094 A1 EP 0860094A1
Authority
EP
European Patent Office
Prior art keywords
central
moving
groove
peripheral suspension
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.)
Granted
Application number
EP96931716A
Other languages
German (de)
French (fr)
Other versions
EP0860094B1 (en
Inventor
Frédéric Granger
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0860094A1 publication Critical patent/EP0860094A1/en
Application granted granted Critical
Publication of EP0860094B1 publication Critical patent/EP0860094B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • H04R9/041—Centering
    • 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

Definitions

  • the invention relates to a central or pe ⁇ phe ⁇ que suspension of the mobile assembly of an electrodynamic loudspeaker comprising a rigorous centering of the mobile parts 6,7, a reduction in the magnetic air gap 2 and a maximum clearance of the bitter from the membrane by removing the spider
  • Figure 2 is an isolated view of the core of Figure 1
  • Figure 3 provides an alternative placement of the suspension on the scattering warhead 1 in place of the core figure 2 but all the features are comparable
  • Figures 8 and 9 are also the possibilities of location of the guides of the centering grooves 4. Items 1 1 and 12 must be reported to the loudspeaker frame, but the operation is similar.
  • the material constituting the flexible element can be rubber, plastic, felt, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Abstract

A suspension including a guiding groove (4) and a flexible member (3) supporting a voice coil (7) and a diaphragm (6) diametrically centred on the core. A magnetic circuit consists of the core (5), a lower field plate (10), a ring-shaped magnet (9) and an upper field plate (8) supplying the coil (7) with the magnetic energy needed to move the diaphragm (6) back and forth. Furthermore, the guiding groove (4) and the flexible member (3) return the moving assembly (6, 7) to its starting position at the centre of the guiding groove (4).

Description

Suspension centrale ou périphérique d'un équipage mobile d'un haut-parleur électrodvnamique. Central or peripheral suspension of a mobile equipment of an electronic speaker.
L'invention concerne une suspension centrale ou peπpheπque de l'équipage mobile d'un haut-parleur electrodynamique comprenant un centrage rigoureux des pièces mobiles 6,7, une diminution de l'entrefer magnétique 2 et un dégagement maximal de l'amere de la membrane par la suppression du spiderThe invention relates to a central or peπpheπque suspension of the mobile assembly of an electrodynamic loudspeaker comprising a rigorous centering of the mobile parts 6,7, a reduction in the magnetic air gap 2 and a maximum clearance of the bitter from the membrane by removing the spider
Dans la fig 1, la vue d'ensemble, le circuit magnétique 5.8,9, 10, l'équipage mobile 7, la rainure de guidage 4 et l'élément souple 3 sont rassembles afin de pouvoir constater l'emplacement et le travail de chacun des composantsIn FIG 1, the overview, 5.8,9 the magnetic circuit 10, the movable element 7, the guide groove 4 and the flexible element 3 are combined to be able to note the location and work each of the components
La figure 2 est une vue isolée du noyau de la figure 1 On peut y constater la forme arrondie du fond de la rainure de guidage 4 qui permet le centrage et le rappel de l'élément souple et, par conséquent, de l'équipage mobile constitue de la bobine et de la membraneFigure 2 is an isolated view of the core of Figure 1 We can see the rounded shape of the bottom of the guide groove 4 which allows the centering and the return of the flexible element and, therefore, of the moving element consists of coil and membrane
La figure 3 propose une autre possibilité de placement de la suspension sur l'ogive de diffusion 1 à la place du noyau fig 2 Mais toutes les caractéristiques sont comparablesFigure 3 provides an alternative placement of the suspension on the scattering warhead 1 in place of the core figure 2 but all the features are comparable
Sur les figures 4,5,6,7, deux formes de « roulements » sont visibles les billes ou les rouleaux A noter que, toutes les formes susceptibles de fonctionner sont possibles, à savoir, les formes lenticulaires, triangulaires, les losanges, l'anneau plein, ete On peut constater que les liaisons des billes dans les fig. 4,6,7 peuvent se situer sur le diamètre intérieur ou extérieur de l'anneau de suspension mais aussi à 1 axe des billes, rouleaux, losanges, etc..In the figures 4,5,6,7, two forms of "bearings" are visible the balls or the rollers. Note that, all the forms likely to function are possible, namely, the lenticular, triangular forms, the diamonds, the full ring, summer It can be seen that the connections of the balls in FIGS. 4,6,7 can be located on the inside or outside diameter of the suspension ring but also on 1 axis of balls, rollers, diamonds, etc.
Les figures 8 et 9 sont également des possibilités d'emplacement des rainures de guidages 4. Les pièces de centrage 1 1 et 12 doivent être rapportées au châssis du haut-parleur, mais le fonctionnement est similaire.Figures 8 and 9 are also the possibilities of location of the guides of the centering grooves 4. items 1 1 and 12 must be reported to the loudspeaker frame, but the operation is similar.
Il est également possible d'implanter deux rainures de guidage et deux éléments souples afin de s'affranchir de la suspension périphérique classique car le guidage s'avère suffisant.It is also possible to install two guide grooves and two flexible elements in order to get rid of the conventional peripheral suspension because the guide proves to be sufficient.
La matière constituant l'élément souple peut être du caoutchouc, du plastique, du feutre, etc..The material constituting the flexible element can be rubber, plastic, felt, etc.
Propriétés de la nouvelle suspension :Properties of the new suspension:
- Propriétés mécaniques :- Mechanical properties :
- Meilleur centrage de l'équipage mobile.- Better centering of the mobile equipment.
- Amortissement des vibrations parasites de l'équipage mobile.- Amortization of parasitic vibrations of the moving equipment.
- Dimension du châssis (saladier) et du circuit magnétique réduit.- Frame size (salad bowl) and reduced magnetic circuit.
- Propriétés magnétiques :- Magnetic properties:
- La réduction de la largeur de l'entrefer permet l'augmentation du champ magnétique.- The reduction in the width of the air gap allows the magnetic field to increase.
- Les fuites magnétiques sont diminuées. Propriétés thermiques- Magnetic leaks are reduced. Thermal properties
- Le rapprochement des plaques de champ dû à un entrefer étroit permet un meilleur refroidissement de la bobine mobile.- The closeness of the field plates due to a narrow air gap allows better cooling of the voice coil.
Propriétés acoustiques :Acoustic properties:
- Le spider classique étant supprimé, un dégagement plus important de la face arrière est possible, ce qui réduit de manière importante les ondes stationnaires ainsi que les interférences membrane/spider.- The classic spider being eliminated, a greater clearance of the rear face is possible, which significantly reduces standing waves as well as membrane / spider interference.
- Le centrage rigoureux réduit la distorsion par harmoniques 3 et impairs- Rigorous centering reduces distortion by 3 and odd harmonics
- L'amortissement mécanique plus important supprime en partie les vibrations audibles indésirables- Greater mechanical damping partially eliminates undesirable audible vibrations
- L'analyse des petits signaux s'en trouve améliorée - Analysis of small signals is improved

Claims

REVENDICATION CLAIM
1. Suspension centrale ou périphérique d'un équipage mobile, comprenant une bobine reliée à une membrane, d'un haut-parleur électrodynamique, caractérisée en ce qu'elle est constituée d'au moins une rainure de guidage, pratiquée dans un des éléments fixes dudit haut-parleur, et d'au moins un élément souple et élastique logé à l'intérieur de la rainure pour maintenir et guider l'équipage mobile.1. Central or peripheral suspension of a moving assembly, comprising a coil connected to a membrane, of an electrodynamic loudspeaker, characterized in that it consists of at least one guide groove, formed in one of the elements fixed of said loudspeaker, and of at least one flexible and elastic element housed inside the groove to hold and guide the moving element.
2. Suspension centrale ou périphérique selon la revendication 1, caractérisée en ce que le fond de la rainure a une forme arrondie pour permettre le rappel et le centrage de l'élément souple.2. Central or peripheral suspension according to claim 1, characterized in that the bottom of the groove has a rounded shape to allow the return and the centering of the flexible element.
3. Suspension centrale ou périphérique selon la revendication 2, caractérisée en ce que la rainure a la forme d'une boucle.3. Central or peripheral suspension according to claim 2, characterized in that the groove has the shape of a loop.
4. Suspension centrale ou périphérique selon l'une des revendications précédentes, caractérisée en ce que l'élément souple est un anneau comportant une multitude de proéminences uniformément réparties sur tout le pourtour de l'anneau permettant un roulement de l'anneau dans la rainure pour le guidage de l'équipage mobile.4. Central or peripheral suspension according to one of the preceding claims, characterized in that the flexible element is a ring comprising a multitude of prominences uniformly distributed over the entire periphery of the ring allowing the ring to roll in the groove for guiding the moving part.
5. Suspension centrale ou périphérique selon l'une des revendications précédentes, caractérisée en ce qu'elle est constituée de deux rainures et de deux éléments souples. 5. Central or peripheral suspension according to one of the preceding claims, characterized in that it consists of two grooves and two flexible elements.
EP96931716A 1995-11-10 1996-10-03 Central or circumferential suspension for the moving assembly of a moving-coil loudspeaker Expired - Lifetime EP0860094B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH3177/95 1995-11-10
CH317795 1995-11-10
CH03177/95A CH687353A5 (en) 1995-11-10 1995-11-10 Central or peripheral suspension of movable equipment of electrodynamic loudspeaker
PCT/CH1996/000348 WO1997018688A1 (en) 1995-11-10 1996-10-03 Central or circumferential suspension for the moving assembly of a moving-coil loudspeaker

Publications (2)

Publication Number Publication Date
EP0860094A1 true EP0860094A1 (en) 1998-08-26
EP0860094B1 EP0860094B1 (en) 2000-06-28

Family

ID=4250292

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96931716A Expired - Lifetime EP0860094B1 (en) 1995-11-10 1996-10-03 Central or circumferential suspension for the moving assembly of a moving-coil loudspeaker

Country Status (7)

Country Link
EP (1) EP0860094B1 (en)
JP (1) JP2000513512A (en)
CN (1) CN1202300A (en)
AT (1) ATE194258T1 (en)
CH (1) CH687353A5 (en)
DE (1) DE69609078D1 (en)
WO (1) WO1997018688A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1873062A (en) * 1928-01-21 1932-08-23 Fed Telegraph Co Sound reproducer
US1920299A (en) * 1930-06-17 1933-08-01 Edmund R Week Jr Dynamic loud speaker
US2235654A (en) * 1937-12-31 1941-03-18 Rca Corp Sound transducer
DE4041858A1 (en) * 1990-12-24 1992-07-02 Nokia Unterhaltungselektronik DRIVE SYSTEM FOR LONG-HUBBED LOW SPEAKER

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9718688A1 *

Also Published As

Publication number Publication date
DE69609078D1 (en) 2000-08-03
ATE194258T1 (en) 2000-07-15
CH687353A5 (en) 1996-11-15
CN1202300A (en) 1998-12-16
EP0860094B1 (en) 2000-06-28
WO1997018688A1 (en) 1997-05-22
JP2000513512A (en) 2000-10-10

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