EP3108666A1 - Lautsprecher - Google Patents
LautsprecherInfo
- Publication number
- EP3108666A1 EP3108666A1 EP15706384.3A EP15706384A EP3108666A1 EP 3108666 A1 EP3108666 A1 EP 3108666A1 EP 15706384 A EP15706384 A EP 15706384A EP 3108666 A1 EP3108666 A1 EP 3108666A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- loudspeaker
- magnet
- basket
- snap
- conical
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
- H04R31/006—Interconnection of transducer parts
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
Definitions
- the present invention relates to a loudspeaker.
- a speaker with a speaker and a basket magnet is known.
- a top plate and a permanent magnet is shown.
- the upper plate has hollow rivets for attaching the loudspeaker frame to the upper side, which are formed by impressing recesses on the opposite side of the upper plate.
- the permanent magnet is glued to the underside of the top plate.
- the invention is based on the object to provide a loudspeaker that allows the fastest possible production.
- a speaker with a speaker basket and a magnet is provided.
- the loudspeaker basket is attached to the magnet.
- the magnet has a cone-shaped outer surface. If the cone-shaped outer surface is considered part of a truncated cone, can This conical outer surface may also be referred to as a lateral surface.
- the loudspeaker basket has a conical inner surface.
- the cone-shaped inner surface is formed to form a press fit with the cone-shaped outer surface of the magnet. In press fit the cone-shaped inner surface of the loudspeaker frame is pressed onto the conical outer surface of the magnet.
- the magnet has at least one undercut.
- the loudspeaker basket has a number of snap hooks. In press fit engages at least one snap hook in the undercut.
- the cone-shaped inner surface of the loudspeaker basket is produced by injection molding.
- a wall with the conical inner surface and the at least one snap hook of the loudspeaker frame are integrally formed.
- Wall with the cone-shaped inner surface and the at least one snap hook of the speaker basket made of a Kunststoffmateriai, in particular polycarbonate with 10% glass fiber, formed.
- a wall thickness of the loudspeaker frame in the region of the conical inner surface is greater than a wall thickness of the snap-action hook.
- the snap hooks are formed adjacent to the cone-shaped inner surface of the loudspeaker frame.
- the conical outer surface of the magnet is made by turning.
- the cone-shaped inner surface of the loudspeaker frame is produced by injection molding.
- the press fit deforms the material of the loudspeaker frame in the area of the press fit.
- Fig. 1 is a three-dimensional schematic view of a
- Fig. 2 is a schematic sectional view of a component of a
- Fig. 3 is a schematic sectional view of a magnet
- Fig. 4 is an enlarged detail of a schematic sectional view of a magnet.
- a component of a loudspeaker basket 100 of a loudspeaker is shown schematically in isometric view.
- the loudspeaker basket 100 has a conical inner surface 110.
- a number of snap hooks 101, 102 are formed adjacent to the conical inner surface 110.
- the snap hooks 101, 102 are arranged rotationally symmetrical.
- the snap hooks 101, 102 are arranged in the embodiment of Fig. 1 adjacent to the cone-shaped inner surface 110 over the entire circumference.
- the snap hooks 101, 102 may be made of an elastic material, such as plastic or metal.
- the snap hooks 101, 102 are in an embodiment of FIG.
- the cone-shaped inner surface 110 and the snap hooks 101, 102 of the loudspeaker basket 100 made of the plastic polycarbonate with. 10% glass fiber formed,
- the component shown in Fig. 1 of the loudspeaker frame is made for example by injection molding.
- the snap hooks 101, 102 have an elasticity for a snap function.
- FIG. 2 shows a schematic sectional view through a component of a loudspeaker basket 100.
- a cone-shaped inner surface 110 of the loudspeaker basket 100 may also be referred to as a lateral surface in the sense of a Kegeistumpfs.
- the angle c (half the opening angle) between the generatrix line and the cone axis is for example 4 °.
- the angle a 2 between a snap hook 101 and the cone axis is for example 10 °.
- FIG. 3 an embodiment of a magnet 200 of a loudspeaker in sectional view is shown schematically.
- the magnet 200 consists of a material for a permanent magnet, for example of ferrous metals and rare earth metals.
- the magnet 200 is rotationally symmetrical.
- the magnet 200 has a cone-shaped outer surface 210.
- the conical outer surface 210 of the magnet 200 is made in the embodiment of FIG. 3 by turning.
- the conical outer surface 210 of the magnet 200 may also be referred to as a lateral surface in the sense of a truncated cone.
- the angle ßi half the opening angle) between the generatrix and cone axis is for example 3 °.
- the angle ß x (half the opening angle) between the generatrix and cone axis of the magnet 200 is smaller than the angle ⁇ (half the opening angle) between the generatrix and cone axis of the loudspeaker frame 100.
- ⁇ half the opening angle
- the angle ⁇ 2 (half the opening angle) between the generatrix of the further lateral surface 220 and cone axis is greater than the angle ßi.
- the conical outer surface 220 of the magnet 200 and the conical inner surface 110 of the loudspeaker basket 100 are provided for a conical interference fit.
- the loudspeaker basket 100 is slipped with its opening over the magnet 100 from the side opposite to a shoulder 250 of the magnet 200.
- the magnet 200 has at least one undercut 230.
- the undercut 230 is rotationally symmetrical.
- the undercut 230 is generated, for example, by turning.
- the undercut 230 is associated with the snap hook 101, 102 of the loudspeaker frame 100, wherein the snap hooks 101, 102 engage in the undercut 230 in the mounted state of the press fit.
- the magnet 200 has an increment of undercuts, whereby a plurality of latching positions are effected.
- the loudspeaker basket 100 has a plurality of snap hooks 101, 102 with stepped lengths, so that a plurality of latching positions are also effected, wherein not all snap hooks engage. As a result, tolerances in the production of the magnet 200 and the speaker basket 100 can be compensated.
- FIG. 4 shows a schematic detail sectional view of the loudspeaker cage 100 fastened to the magnet 200 by means of press fit 150.
- a shoulder 250 of the magnet forms a stop for the loudspeaker basket 100.
- An adhesive 300 may optionally be additionally provided between the shoulder 250 and the loudspeaker cage 100.
- the conical inner surface 110 of the loudspeaker frame 100 of FIG. 1 faces the conical outer surface 210 of the magnet 200 of FIG. 3.
- the plastic of the wall 120 of the loudspeaker basket 100 is deformed in the press fit 150 ,
- FIG. 4 schematically shows how a snap hook 101 of the loudspeaker basket 100 engages in the undercut 230 of the magnet 200.
- the snap hook 101 is formed from an elastic material, such as plastic.
- the snap hook 101 is formed integrally with the wall 120 of the loudspeaker basket 100 made of a plastic material.
- a wall thickness of the snap hook 101 is significantly smaller than the wall thickness of the wall 120. Inadvertent release of the attachment between magnet 200 and loudspeaker basket 100 is effectively secured by snapping the snap hook 101 into the undercut 230. For the desired release, the snap hook 101 would first have to be brought out of the undercut 230.
- the invention is not limited to the illustrated embodiments of Figures 1 to 4.
- the functionality of the fastening medium press fit according to FIG. 4 can be used particularly advantageously for a center loudspeaker. LIST OF REFERENCE NUMBERS
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201420001433 DE202014001433U1 (de) | 2014-02-19 | 2014-02-19 | Lautsprecher |
| PCT/EP2015/052454 WO2015124437A1 (de) | 2014-02-19 | 2015-02-05 | Lautsprecher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3108666A1 true EP3108666A1 (de) | 2016-12-28 |
| EP3108666B1 EP3108666B1 (de) | 2018-01-24 |
Family
ID=52589341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15706384.3A Active EP3108666B1 (de) | 2014-02-19 | 2015-02-05 | Lautsprecher |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10015611B2 (de) |
| EP (1) | EP3108666B1 (de) |
| CN (1) | CN106416287B (de) |
| DE (1) | DE202014001433U1 (de) |
| WO (1) | WO2015124437A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115209332B (zh) * | 2022-07-08 | 2023-03-10 | 汕头市雅威机电实业有限公司 | 一种高空气耦合度扬声器棉条吸附卷曲贴合设备及其贴合方法 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH265675A (de) | 1946-10-21 | 1949-12-15 | Ericsson Telefon Ab L M | Elektrodynamische Anordnung zur Umwandlung von Schallschwingungen in elektrische Schwingungen oder umgekehrt. |
| FR1375202A (fr) | 1963-09-02 | 1964-10-16 | Radiotechnique | Fixation de pièces empilées, plus spécialement des pièces d'un haut-parleur |
| GB1219918A (en) | 1968-08-08 | 1971-01-20 | Standard Telephones Cables Ltd | Improvements in and relating to moving coil transducers |
| DE1950188B2 (de) | 1969-10-04 | 1972-01-20 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Vorrichtung zum befestigen eines lautsprechers |
| US4281224A (en) * | 1980-04-21 | 1981-07-28 | Sparkomatic Corporation | Grille covered speaker assembly construction for compact automobiles and the like |
| DE8016205U1 (de) | 1980-06-19 | 1980-09-25 | Thyssen Edelstahlwerke Ag, 4000 Duesseldorf | Oberplatte fuer lautsprechermagnete |
| DE4031742A1 (de) * | 1990-10-06 | 1992-04-09 | Nokia Unterhaltungselektronik | Kalotten-hochton-lautsprecher |
| EP0507324A3 (en) * | 1991-04-05 | 1993-07-28 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Composite molding of resin-bonded magnet for machine parts and process for producing the same |
| DE9113037U1 (de) * | 1991-10-19 | 1992-01-09 | Nokia Unterhaltungselektronik (Deutschland) GmbH, 7530 Pforzheim | Konuslautsprecher |
| US5431367A (en) * | 1992-08-28 | 1995-07-11 | General Electric Company | Multilayer injection molds having improved surface properties |
| JP4106858B2 (ja) * | 2000-06-26 | 2008-06-25 | 松下電器産業株式会社 | スピーカユニット |
| JP2002247689A (ja) * | 2001-02-16 | 2002-08-30 | Citizen Electronics Co Ltd | スピーカ |
| JP4600037B2 (ja) * | 2004-12-27 | 2010-12-15 | パナソニック株式会社 | スピーカ |
| JP2006261962A (ja) * | 2005-03-16 | 2006-09-28 | Pioneer Electronic Corp | スピーカ装置 |
| WO2010013338A1 (ja) * | 2008-07-31 | 2010-02-04 | パイオニア株式会社 | スピーカ装置及び自動車 |
-
2014
- 2014-02-19 DE DE201420001433 patent/DE202014001433U1/de not_active Expired - Lifetime
-
2015
- 2015-02-05 CN CN201580004922.2A patent/CN106416287B/zh active Active
- 2015-02-05 WO PCT/EP2015/052454 patent/WO2015124437A1/de not_active Ceased
- 2015-02-05 US US15/118,764 patent/US10015611B2/en active Active
- 2015-02-05 EP EP15706384.3A patent/EP3108666B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE202014001433U1 (de) | 2015-02-20 |
| WO2015124437A1 (de) | 2015-08-27 |
| CN106416287B (zh) | 2019-11-05 |
| CN106416287A (zh) | 2017-02-15 |
| US20170055094A1 (en) | 2017-02-23 |
| US10015611B2 (en) | 2018-07-03 |
| EP3108666B1 (de) | 2018-01-24 |
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