EP1233646B1 - Speaker - Google Patents

Speaker Download PDF

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Publication number
EP1233646B1
EP1233646B1 EP00963032A EP00963032A EP1233646B1 EP 1233646 B1 EP1233646 B1 EP 1233646B1 EP 00963032 A EP00963032 A EP 00963032A EP 00963032 A EP00963032 A EP 00963032A EP 1233646 B1 EP1233646 B1 EP 1233646B1
Authority
EP
European Patent Office
Prior art keywords
disposed
casing
terminal
flexible wire
loudspeaker
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.)
Expired - Lifetime
Application number
EP00963032A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1233646A4 (en
EP1233646A1 (en
Inventor
Junzo Ikeyama
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.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of EP1233646A1 publication Critical patent/EP1233646A1/en
Publication of EP1233646A4 publication Critical patent/EP1233646A4/en
Application granted granted Critical
Publication of EP1233646B1 publication Critical patent/EP1233646B1/en
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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/06—Arranging circuit leads; Relieving strain on circuit leads

Definitions

  • the present invention relates to a loudspeaker (speaker) for use in television receivers, stereophonic apparatus, sound recording apparatus and the like audio-visual appliances; more specifically to a structure of the speaker.
  • a terminal for connection with sound signal amplifier is often disposed somewhere in a front part of the speaker for easy connection with an amplifier contained in an apparatus.
  • the above-described arrangement for connection is popular among the speakers used in carborne sound apparatus.
  • FIGs. 11 through 13 A conventional speaker is described referring to FIGs. 11 through 13.
  • a conventional speaker mainly comprises;
  • a conventional speaker further comprises; a pair of relay terminals 9 for internal connection attached on the frame 1; a flexible wire (hereinafter referred to as FW) 6, one end being connected with an end of the coil of voice coil, while the other end with the relay terminal 9; and a relay cord 10, one end being connected with the relay terminal 9, while the other end with a terminal plate 2b.
  • FW flexible wire
  • the above-described ST 2 comprises:
  • the FW 6 should always be managed not to make a contact with neighboring components (damper, diaphragm), even when the ST 2 is located close to the diaphragm 5.
  • the speaker When a FW 6 makes contact with the neighboring components, the speaker generates abnormal sounds, or in some cases it is broken.
  • connection points soldering points
  • the present invention addresses the above problems, and a speaker in accordance with the present invention comprises:
  • the clamping portion clamps a FW to fix it to a place, while the wall section regulates an position of the FW.
  • a relay cord can be eliminated.
  • number of the component can reduced, and generation of abnormal sounds during operation of a speaker due to collisions of a vibrating FW with other components (damper, diaphragm) can be avoided in accordance with the present invention to provide a excellent speaker.
  • FIGs. 1 through 5 A speaker in accordance with a first exemplary embodiment of the present invention is described referring to FIGs. 1 through 5. Those constituent parts identical to those in conventional technology are designated using the same numerals, and descriptions on which are omitted.
  • a speaker in the first embodiment comprises:
  • the voice coil 3 is formed of the coil and a voice coil bobbin around which the coil is wound.
  • the plastic frame 1A is attached with a relay portion 8.
  • the relay portion 8 may be formed integrally as a part of the frame 1A, or a relay portion 8 provided separately may be mounted and fixed on the frame 1A.
  • the FW 6A is connected at one end to a terminal plate 2B, while another end to the coil of voice coil 3.
  • the FW 6A is clamped at a halfway by the relay portion 8.
  • the relay portion 8 comprises:
  • the wall section 8B is provided with two grooves 8E, for preventing the FW 6A with no insulation coating from making mutual contact.
  • a protrusion may be provided in the wall section 8B between the pair of FWs 6A which is placed along the wall.
  • FIG. 4A is a side view of the relay portion 8 of FIG. 3.
  • FIG. 4B shows a state where a FW 6A is clamped by the relay portion of FIG. 4A.
  • a FW 6A is clamped at the halfway by the clamping section 8A, and is disposed along the slanting groove 8E to make an arc shape.
  • the FW 6A is influenced by the vibration, sometimes it vibrates itself; however, the arc shape prevents the FW 6A from making vibration in the direction to damper 4 and diaphragm 5.
  • An ideal location for FW 6A to avoid making a collision with damper 4 or diaphragm 5 is at an approximate middle part between the diaphragm 5 and the damper 4, as illustrated in FIG. 2.
  • an upper sloped face 8C1 and a lower sloped face 8C2 are provided opposing to each other.
  • a protrusion 8D is provided protruding towards a plane of the sloped face 8C2.
  • the sloped face 8C1 and sloped face 8C2 facilitate an easier insertion of a FW 6A towards the clamping section 8A.
  • the protrusion 8D prevents the FW 6A from getting out from the clamping section 8A.
  • the above-described sloped face may be provided in either one of the faces 8C1 and 8C2 (or, such a sloped face is not an indispensable item).
  • a flat porch 8F extended from the lower sloped face 8C2.
  • a FW 6A both ends of which being connected to the respective places, into the clamping section 8A
  • an operator may provisionally place a FW on the flat porch 8F, in preparation of the succeeding inserting action.
  • the flat porch 8F contributes to make the inserting operation easier.
  • the clamping section 8A of relay portion 8 is locating approximately on the line connecting the terminal plate 2B and the tangential line of circumference of voice coil 3. Therefore, a FW 6A is not always under the influence of a pulling force to take the FW 6A away from the opening of clamping section 8A.
  • a second exemplary embodiment of the present invention is described referring to FIG. 6. Description is made only on a difference from the first embodiment, eliminating a description on identical components.
  • the difference from the first embodiment is that there is a through hole 8G provided underneath a clamping position of FW 6A in the relay portion 8.
  • the through hole 8G facilitates visual observation from the bottom about the status of a FW 6A being clamped.
  • a FW 6A may be fixed at the clamping section 8A by applying an adhesive agent via the through hole 8G.
  • an adhesive agent via the through hole 8G.
  • a speaker terminal for use in a speaker in a third exemplary embodiment of the present invention is described referring to FIG. 7.
  • a ST in the conventional technology is for soldering a relay cord 10, which has a relatively high rigidity and a restriction in terms of the length is not very strict.
  • a FW 6A what is connecting between the ST and the voice coil 3 is a FW 6A.
  • the FW 6A is made to be soft and flexible so that it can comply with the motion of voice coil 3.
  • the FW 6A is not allowed to make a contact with neighboring components.
  • the length needs to be controlled within a certain specific length.
  • a ST 11 in the present embodiment provides a structure that secures a certain specific length of a FW 6A.
  • a ST 11 in the present embodiment comprises a casing 11B made of a plastic material having its opening at one end, and a pair of terminal plates 11A1 and 11A2 protruding within the opening of the casing 11B.
  • the pair of terminal plates 11A1 and 11A2 are disposed in the casing 11B by a press-fitting method or by outsert molding in the casing 11B.
  • the terminal plate 11A1 comprises:
  • the terminal plate 11A1 and the terminal plate 11A2 are disposed symmetric with respect to the middle plane. So, description on the terminal plate 11A2 is omitted.
  • the terminals 11C1 and 11C2 are for coupling with a connector which delivers signals from outside (not shown).
  • a FW 6A is connected to ST 11 in the following manner.
  • a tip end of FW 6A is made to contact with the upright wall 11E1.
  • the FW 6A is provisionally fixed with its tip end making contact with the upright wall 11E1, and then it is soldered at the bent and cut end 11D1.
  • the FW 6A may have least dispersion in the length of a portion for connection to ST 11; accordingly, a portion connecting the voice coil 3 and the ST 11 also has a stable length.
  • the above-described configuration prevents the FW 6A from making contact with neighboring components during sound reproduction of a speaker, so, no abnormal sounds will be generated by the speaker.
  • a cut-portion 11F1 is formed.
  • the cut-portion 11F1 creates a narrowed section in the terminal plate 11A1, which limits a conduction of the soldering heat given at the bent and cut ends 11D1 towards the casing 11B.
  • the upright wall 11E1 plays also a role of heat dissipating fin.
  • the terminal plate 11A2 is symmetrical to the terminal plate 11A1, and connection of a FW 6A to the terminal plate 11A2 is made in the same manner. So, the description is omitted.
  • the cut-portion 11F1 (11F2) may be used as the window for observing the status of soldering from the underneath.
  • FIG. 8 and FIG. 9 Another example of a speaker terminal for use in a speaker of the present invention is described referring to FIG. 8 and FIG. 9.
  • a fourth exemplary embodiment also relates to a ST, like in the third embodiment.
  • a ST 12 in the present embodiment comprises a casing 12B made of a plastic material having its opening at one end, and a pair of terminal plates 12A1 and 12A2 protruding within the opening of casing 12B.
  • the pair of terminal plates 12A1 and 12A2 are disposed in the casing 12B by a press-fitting method or by outsert molding in the case 12B.
  • the terminal plate 12A1 comprises:
  • the bent and cut end 12D1 is identical to the bent and cut ends 11D1 in the third embodiment.
  • the cut-portion 12F1 has an identical function as that of 11F1 in the third embodiment.
  • the terminal plate 12A1 and the terminal plate 12A2 are disposed symmetric with respect to the middle plane. So, description on the terminal plate 12A2 is omitted.
  • the FW 6A is connected to ST 12 in the following manner;
  • the FW 6A is provisionally fixed with its tip end making contact with the casing 12B, and then it is soldered at the bent and cut ends 12D1.
  • the FW 6A may have least dispersion in the length of a portion for connection to ST 12; accordingly, a portion connecting the voice coil 3 and the ST 12 also has a stable length.
  • the present embodiment provides the FW 6A with a certain specific length required for a trustworthy connection to ST 12 on a stable basis, providing the same advantage obtained in the third embodiment.
  • the wall 12G1 dissipates the heat, and the cut-portion 12F1 curtails conduction of soldering heat to the casing 12B preventing deformation of the casing 12B due to the heat. Resultant troubles in insertion and pulling out of a connector can also be avoided.
  • a possible trouble to be caused by a bent tip end of the FW 6A making contact with an adjacent terminal plate 12A2 can be prevented by the wall 12G1, as the tip end of FW 6A can sometimes be bent by a heat applied for soldering the FW 6A after it is provisionally fixed by the bent and cut ends 12D1.
  • the above-configured STs in the third and fourth embodiments can be used as well in such other types of speakers which have no relay portion and no needs of placing a ST at the front part.
  • the ST may be employed in an arrangement as illustrated in FIG. 10. It provides the FW 6A with a certain regulated length on a stable basis, and effectively prevents generation of abnormal sounds caused by contacting with the neighboring components.
  • a speaker in accordance with the present invention clamps and fixes the FW with a clamping section, and regulates position of the FW with a wall section.
  • a relay cord can be eliminated contributing to a decreased number of components, and facilitating an easy assembly operation. Colliding of FWs with neighboring components during operation can be avoided to prevent abnormal sounds.
  • a slope provided at the clamping section in at least one of the opening faces, and a protrusion provided therein make insertion and fitting of FW into the clamping section easier, and prevent pulling out of FW therefrom.
  • a flat porch formed by extending the lower face of opening at the clamping section functions as a guide plate for inserting a FW into the opening, making the inserting operation easier.
  • a pair of grooves, or a protrusion, formed in the wall of clamping section along the running direction of FW contributes to prevent the FW from leaning to the right/left directions, and facilitates precise placement regulation for the FW. It also contributes for preventing the uncoated FWs from making mutual contact.
  • a through hole provided underneath the clamping section makes it easier to observe the state of FW clamped.
  • the length of FW between ST and voice coil can be regulated to a certain specific length on a stable basis.
  • the quality dispersion due to the above-described specific length of FW can be effectively suppressed, and speakers are provided with least quality dispersion.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
EP00963032A 2000-10-02 2000-10-02 Speaker Expired - Lifetime EP1233646B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/006830 WO2002030152A1 (fr) 2000-10-02 2000-10-02 Haut-parleur

Publications (3)

Publication Number Publication Date
EP1233646A1 EP1233646A1 (en) 2002-08-21
EP1233646A4 EP1233646A4 (en) 2006-02-08
EP1233646B1 true EP1233646B1 (en) 2008-01-16

Family

ID=11736549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00963032A Expired - Lifetime EP1233646B1 (en) 2000-10-02 2000-10-02 Speaker

Country Status (5)

Country Link
EP (1) EP1233646B1 (zh)
JP (1) JP4389426B2 (zh)
CN (1) CN1196376C (zh)
DE (1) DE60037829T2 (zh)
WO (1) WO2002030152A1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7274797B2 (en) 2003-07-14 2007-09-25 Harman International Industries, Incorporated Speaker housing
FR2955445B1 (fr) * 2010-01-15 2013-06-07 Phl Audio Transducteur electrodynamique a dome et suspension interne
JP6368918B2 (ja) * 2013-03-27 2018-08-08 パナソニックＩｐマネジメント株式会社 スピーカと、その製造方法
CN106658335B (zh) * 2015-11-03 2019-08-13 大原博 防止变形的弹波制作方法
CN106878879B (zh) * 2015-12-11 2019-10-11 东莞顺合丰电业有限公司 薄型迷你扬声器的支架和引线的组装方法
CN111464925B (zh) * 2020-03-30 2021-11-09 定南辉煌电声科技有限公司 一种导电弹波与音圈、端子的连接结构及连接方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6144992U (ja) * 1984-08-24 1986-03-25 パイオニア株式会社 複合形スピ−カ
JP3462040B2 (ja) * 1997-05-30 2003-11-05 三菱電機株式会社 スピーカ
JP2000059887A (ja) * 1998-08-07 2000-02-25 Matsushita Electric Ind Co Ltd スピーカ
US6922477B1 (en) * 1999-11-04 2005-07-26 Matsushita Electric Industrial Co., Ltd. Speaker

Also Published As

Publication number Publication date
JPWO2002030152A1 (ja) 2004-02-19
EP1233646A4 (en) 2006-02-08
CN1196376C (zh) 2005-04-06
EP1233646A1 (en) 2002-08-21
CN1402954A (zh) 2003-03-12
JP4389426B2 (ja) 2009-12-24
DE60037829T2 (de) 2008-05-21
DE60037829D1 (de) 2008-03-06
WO2002030152A1 (fr) 2002-04-11

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