EP0893936A2 - Panier pour haut-parleur - Google Patents

Panier pour haut-parleur Download PDF

Info

Publication number
EP0893936A2
EP0893936A2 EP98113235A EP98113235A EP0893936A2 EP 0893936 A2 EP0893936 A2 EP 0893936A2 EP 98113235 A EP98113235 A EP 98113235A EP 98113235 A EP98113235 A EP 98113235A EP 0893936 A2 EP0893936 A2 EP 0893936A2
Authority
EP
European Patent Office
Prior art keywords
loudspeaker
magnet system
basket
upper edge
axis
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
EP98113235A
Other languages
German (de)
English (en)
Other versions
EP0893936B1 (fr
EP0893936A3 (fr
Inventor
Manfred Aigner
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.)
Harman Becker Automotive Systems GmbH
Original Assignee
Nokia Technology GmbH
Harman Audio Electronic Systems GmbH
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 Nokia Technology GmbH, Harman Audio Electronic Systems GmbH filed Critical Nokia Technology GmbH
Publication of EP0893936A2 publication Critical patent/EP0893936A2/fr
Publication of EP0893936A3 publication Critical patent/EP0893936A3/fr
Application granted granted Critical
Publication of EP0893936B1 publication Critical patent/EP0893936B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the invention is concerned with the formation of loudspeaker baskets, in particular with Training of such speaker baskets, in which one in or on the speaker basket attached magnet system is attached by means of locking hooks.
  • speaker baskets are constructed so that with mutual axial distance in the direction of the loudspeaker axis, there is a base and an upper edge and that the upper edge is connected to the bottom with at least one web.
  • Such an arrangement which shows a plurality of webs, is for example in DE-A-41 130 17 is shown.
  • a Arrangement with a web understood one in which the entire circumference of the Floor with the entire circumference of the upper edge by means of a web Intermediate piece is continuously connected. The latter does not preclude that in being considered an Bridge designated intermediate piece openings are formed, which are present automatically result in multiple webs due to the lateral spacing of these webs.
  • the bottom of the speaker basket is - as DE-A-41 130 17 shows - with a Magnet system connected. Under a magnet system is in connection with this Registration not only the unit formed from inference parts and the permanent magnet understood, but also the individual parts (yoke parts and permanent magnets), the one form such a magnet system.
  • connection of floor and magnet system is diverse in the state of the art Way solved.
  • Known types of connection in this context are gluing Riveting and screwing. Snapping is also occasionally used as a connection technology specified (such as in DE-A-40 31 742), always pointing out that a such connection technology can only be used with particularly light magnet systems.
  • the Reasons which lead to the limited usability of rest connections are that locking hooks are not able to heavy magnet systems, such as for medium or Connect the woofer permanently to the bottom of the speaker basket. The reason for this is that the tolerance compensation with the magnet system or Parts of the magnet system that come into contact with the edges of the locking hooks are chamfered are formed and thus the locking hooks or their edges are not flat, but only have a linear contact with the magnet system.
  • the invention has for its object to provide a speaker basket with which a magnet system regardless of the weight of the magnet system as well Tolerance problems can be locked without further security measures for such a locking connection are necessary.
  • the webs are designed to be resilient in the direction of the loudspeaker axis, there are locking hooks which are connected to the upper edge and extend towards the Extend floor, and have the locking hooks on the end facing away from the end one bend each, the side facing the upper edge parallel to the floor runs, a magnet system with a high weight can be permanently locked only by locking be connected to the speaker basket. This is due to the fact that Magnet system in its end position, despite its snap fastening, always flat between mutually parallel surfaces - the bottom and the side facing the upper edge the respective bend - is arranged.
  • the locking hook according to the invention compared to conventional locking hooks in the direction the loudspeaker axis can be made much more stable because they are used to achieve the target position on the magnet system with tolerance deviations no stretching forces in the direction of Loudspeaker axis.
  • end face of the respective bend is rounded according to claim 2, is the sliding or rebound movement of the locking hooks when moving the magnet system on supports the floor. If necessary, the side of the each locking hook be rounded for the same reasons.
  • the speaker basket is made in one piece, it is a very inexpensive arrangement created.
  • the magnet system can only in a predetermined position Speaker basket can be connected to this.
  • the production of a unit from the loudspeaker basket and magnet system is particularly simple when, according to claim 8, the guide means simultaneously form the means which in connected state of the speaker basket and magnet system a rotation of the magnet system exclude around the speaker axis.
  • the magnet system is connected to the loudspeaker basket exclusively by means of a catch, there are advantages not only in the connection, but also in the later resolution the connection. So it is possible to separate the magnet system from the speaker basket, without remnants of the speaker basket remaining on the magnet system. To realize this, all that is required is a tool that removes the locking hooks from their target position on the magnet system lever or which separates the locking hooks near the upper edge.
  • a speaker basket 10 is shown for a woofer.
  • This Speaker basket 10 is made of an upper edge 11, a bottom 12 and four webs 13.1-4 formed, which the upper edge 11 with the upper edge 11 in axial Connect spaced floor 12.
  • each web 13.1-4 is formed by two segments 14.1, 14.2, each Segment 14.1, 14.2 each occupies a different angle to the loudspeaker axis 15.
  • This construction of the webs 13.1-4 causes a pressure load when exerted on the floor 12 in the direction of the upper edge 11, the edge 14.3 on which the two webs 14.1, 14.2 are connected to each other, acts as a joint, so that the floor 12 can avoid the pressure load in the direction of the upper edge 11 without the Bottom 12 loses its radial alignment with the speaker axis 15.
  • the bottom 12 acts like a plate spring when the bottom 12 is under pressure.
  • each this locking hook 16.1 is arranged in the space 17 between two webs 13.1, 13.2.
  • each of these locking hooks 16.1-4 of a trapezoidal base part 18 and a bend 19 are formed.
  • the base part 18 has such a length in the direction of the speaker axis 15 that it from the floor 12th formed level dominates.
  • the base 18 is still with a reinforcing rib 18 'equipped.
  • the bend 19 is directed towards the speaker axis 15. The closer configuration of the bends 19 will be closer in connection with FIG. 2 are explained.
  • a speaker basket 10 is shown for the bass application, which with a Magnet system 20 is connected.
  • the connection between the magnet system 20 and the Speaker basket 10 was realized so that the magnet system 20 in the direction of arrow P1 the speaker basket 10 has been moved.
  • the locking hooks 16.1, 16.3 in physical contact with that of the permanent magnet 21 of the magnet system 20 formed first surface 22, the locking hooks 16.1, 16.3 in the direction of arrow P2 and then slide along the lateral surface 23 of the permanent magnet 21.
  • FIG. 3 shows a plan view of a magnet system 20.
  • the permanent magnet 21 is provided with grooves 26 on its peripheral edge 30. These grooves 26 have the functions of the locking hooks 16 when connecting the magnet system 20 with the speaker basket 10 and when the locking hook 16 - as in Fig.2 shown - spring back against the direction of arrow P2, through which then partially in the grooves 26 lying base parts 18 of the locking hook 16 mutual rotation excluded from the speaker basket 10 and magnet system 20.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
EP98113235A 1997-07-26 1998-07-16 Panier pour haut-parleur Expired - Lifetime EP0893936B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19732185A DE19732185A1 (de) 1997-07-26 1997-07-26 Lautsprecherkorb
DE19732185 1997-07-26

Publications (3)

Publication Number Publication Date
EP0893936A2 true EP0893936A2 (fr) 1999-01-27
EP0893936A3 EP0893936A3 (fr) 2002-07-24
EP0893936B1 EP0893936B1 (fr) 2003-07-09

Family

ID=7836964

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98113235A Expired - Lifetime EP0893936B1 (fr) 1997-07-26 1998-07-16 Panier pour haut-parleur

Country Status (2)

Country Link
EP (1) EP0893936B1 (fr)
DE (2) DE19732185A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4031742A1 (de) * 1990-10-06 1992-04-09 Nokia Unterhaltungselektronik Kalotten-hochton-lautsprecher
EP0538702A2 (fr) * 1991-10-19 1993-04-28 NOKIA TECHNOLOGY GmbH Haut-parleur conique

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4031742A1 (de) * 1990-10-06 1992-04-09 Nokia Unterhaltungselektronik Kalotten-hochton-lautsprecher
EP0538702A2 (fr) * 1991-10-19 1993-04-28 NOKIA TECHNOLOGY GmbH Haut-parleur conique

Also Published As

Publication number Publication date
DE59808952D1 (de) 2003-08-14
DE19732185A1 (de) 1999-01-28
EP0893936B1 (fr) 2003-07-09
EP0893936A3 (fr) 2002-07-24

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