GB2218879A - A yoke in a cone speaker - Google Patents

A yoke in a cone speaker Download PDF

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Publication number
GB2218879A
GB2218879A GB8811745A GB8811745A GB2218879A GB 2218879 A GB2218879 A GB 2218879A GB 8811745 A GB8811745 A GB 8811745A GB 8811745 A GB8811745 A GB 8811745A GB 2218879 A GB2218879 A GB 2218879A
Authority
GB
United Kingdom
Prior art keywords
yoke
cone speaker
speaker
cone
outer frame
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.)
Withdrawn
Application number
GB8811745A
Other versions
GB8811745D0 (en
Inventor
Shen-Ting Wang
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.)
WANG SHEN TING
Original Assignee
WANG SHEN TING
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 WANG SHEN TING filed Critical WANG SHEN TING
Priority to GB8811745A priority Critical patent/GB2218879A/en
Publication of GB8811745D0 publication Critical patent/GB8811745D0/en
Publication of GB2218879A publication Critical patent/GB2218879A/en
Withdrawn legal-status Critical Current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
    • H04R9/02—Details

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

This invention relates to a yoke in a cone speaker. A metallic outer frame 1 for the speaker is made by pressing being provided with an inwardly protruding edge 2 to function as a yoke for the magnet 5. <IMAGE>

Description

"A YOKE IN A CONE SPEAKER" This invention concerns a structure of a yoke in a cone speaker.
As shown in Figures 1, 2 and 3, a conventional cone speaker consists of a magnet 5, a yoke A and a middle magnetic pole 3, which are placed to make up an empty space for a magnetic field. Then a voice coil 4 is set in the space so as to give out voice axially radiated from a cone paper.
But in that structure the design of the yoke A makes the manufacturing process inconvenient and it can waste time and material as well, which naturally increases its cost.
In order to solve the problems in the art mentioned above, the present invention has been worked out to provide a yoke in a cone speaker which is formed by pressing a metallic outer frame to provide its central part with an inwardly protruding round edge, which can function as a yoke.
An embodiment of the invention will now be described by way of example and with reference to the accompanying drawings, in which: Figures 1, 2 and 3 are views of various structures of yokes in conventional cone speakers; Figure 4 is a schematic view of the cone speaker in accordance with the present invention; Figure 5 is a side cross-sectional view of the cone speaker in accordance with the present invention; Figure 6 is a side cross-sectional view of an example in accordance with the present invention.
Referring firstly to Figures 4 and 5, a metallic outer frame 1 is made by pressing, being provided with an inwardly protruding round edge 2. This inwardly protruding round edge 2 can have the same function as a conventional yoke.
Next, as shown in Figure 6, the metallic outer frame 1 is placed at the outside of a middle magnetic pole 3 and the empty space for a magnetic field surrounded by both the metallic outer frame 1 and the magnetic pole 3 can be kept at the most even state. Therefore, a voice coil 4 set in the space can generate comparatively harmonic frequency. In addition, a magnet 5 is inserted between the upper face of the frame 1 and the middle magnet pole 3.
In short, the structure of a yoke in a cone speaker in accordance with the present invention can simplify the manufacturing process of the whole cone speaker, so it can not only decrease the producing cost but obtain the most economical gain without losing the voice quality.

Claims (1)

  1. CLAIMS:
    1. A yoke in a cone speaker which is made by pressing a metallic outer frame provided at its central part with an inwardly protruding round edge that can function as a yoke.
GB8811745A 1988-05-18 1988-05-18 A yoke in a cone speaker Withdrawn GB2218879A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8811745A GB2218879A (en) 1988-05-18 1988-05-18 A yoke in a cone speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8811745A GB2218879A (en) 1988-05-18 1988-05-18 A yoke in a cone speaker

Publications (2)

Publication Number Publication Date
GB8811745D0 GB8811745D0 (en) 1988-06-22
GB2218879A true GB2218879A (en) 1989-11-22

Family

ID=10637091

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8811745A Withdrawn GB2218879A (en) 1988-05-18 1988-05-18 A yoke in a cone speaker

Country Status (1)

Country Link
GB (1) GB2218879A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1164307A (en) * 1965-12-21 1969-09-17 Gen Electric Magnets.
GB2099633A (en) * 1981-05-28 1982-12-08 Fine Stamps Ltd Magnet assembly
GB2113504A (en) * 1982-01-11 1983-08-03 Western Electric Co Electromagnetic transducers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1164307A (en) * 1965-12-21 1969-09-17 Gen Electric Magnets.
GB2099633A (en) * 1981-05-28 1982-12-08 Fine Stamps Ltd Magnet assembly
GB2113504A (en) * 1982-01-11 1983-08-03 Western Electric Co Electromagnetic transducers

Also Published As

Publication number Publication date
GB8811745D0 (en) 1988-06-22

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)