CN201234341Y

CN201234341Y - Belt type high frequency loudspeaker

Info

Publication number: CN201234341Y
Application number: CNU200820120650XU
Authority: CN
Inventors: 胡一平
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-30
Filing date: 2008-06-30
Publication date: 2009-05-06
Anticipated expiration: 2018-06-30

Abstract

A ribbon high frequency loudspeaker, belonging to the technology field of loudspeakers used for audio equipment, comprises an upper magnetic conduction plate and a lower magnetic conduction plate. The width of the upper magnetic conduction plate is smaller than that of the lower magnetic conduction plate, the two ends of the upper magnetic conduction plate align to the two ends of the lower magnetic conduction plate, respectively, a magnet is arranged between the upper magnetic conduction plate and the lower magnetic conduction plate, the two ends of the magnet align to the two ends of the lower magnetic conduction plate, respectively, and a circuit is printed on a vibrating diaphragm which is inserted into a gap formed of the upper magnetic conduction plate by folding into an inverted herringbone shape. The ribbon high frequency loudspeaker has simple structure, and gathers magnetic energy via the magnetic conduction plates between which the magnet is arranged, so as to reduce the magnet consumption, thereby reducing production cost. A parallel magnetic field is formed between the magnetic conduction plates and the magnet, and the circuit is inserted between the magnetic conduction plates so as to obtain higher electro-acoustic conversion efficiency and remarkably improve sounding efficiency; and a damping material is bonded at the two ends of the vibrating diaphragm to ensure the circuit not to contact with the magnetic conduction plates, so as to avoid the sound generated due to contacting with the magnetic conduction plates, thereby perfecting sound quality.

Description

Ribbon tweeters

Technical field

The utility model belongs to the technical field that is used for various audio device speakers, is specifically related to a kind of ribbon tweeters.

Background technology

Existing belt high pitch loudspeaker be on vibrating diaphragm, to cover copper or cover aluminium, the etching technique with printed circuit forms specific circuit on vibrating diaphragm then, after the logical audio signal under the effect of tangential magnetic field sounding.The characteristics of this loud speaker are that high frequency is very high, can reach 40KHz.The loud speaker of traditional belt high pitch design as shown in Figure 3, Figure 4, two kinds of similar are provided with circuit 5 on vibrating diaphragm 4, wherein " ", the different sense of current of " x " expression, vibrating diaphragm 4 both sides are provided with magnet 2, just the position of magnet setting is distinguished to some extent.This structure has been used a large amount of magnets, owing to can not set up a parallel magnetic field all the time, so the circuit 5 on the vibrating diaphragm 4 all the time can not be tangent with magnetic field fully, the magnetic structure of its no magnetic conductive board is unfavorable for poly-magnetic, and a lot of magnetic energies is wasted.

The utility model content

At problems of the prior art, the purpose of this utility model is to provide a kind of technical scheme of ribbon tweeters, reduces the consumption of magnet, reduces the waste of magnet energy.

Described ribbon tweeters, it is characterized in that comprising upper conduction magnetic board and following magnetic conductive board, the width sum of upper conduction magnetic board is less than the width of following magnetic conductive board, two ends, the upper conduction magnetic board left and right sides respectively with following magnetic conductive board justify align, be equipped with magnet between upper conduction magnetic board and the following magnetic conductive board, the magnet two ends respectively with following magnetic conductive board justify align, printed wiring on the vibrating diaphragm is folded into down vibrating diaphragm " people " font and is inserted between the space that upper conduction magnetic board forms.

Described ribbon tweeters is characterized in that the magnetic conductive board two ends are equipped with fixed mount down, and vibrating diaphragm is placed on the fixed mount.

Described ribbon tweeters, the sense of current that it is characterized in that being placed on the circuit on the vibrating diaphragm between the upper conduction magnetic board space is identical.

Described ribbon tweeters, the width that it is characterized in that magnet are respectively less than the width of upper conduction magnetic board.

Described ribbon tweeters is characterized in that two sides, vibrating diaphragm both ends is all pasted damping material is set.

The utility model is simple and reasonable, and magnet is arranged between the magnetic conductive board, by magnetic conductive board magnetic energy is assembled, and has reduced the consumption of magnet, thereby has reduced cost of manufacture.Form a parallel magnetic field between magnetic conductive board and the magnet, circuit is inserted between the magnetic conductive board, can obtain higher electro-acoustic conversion efficiency, improved phonation efficiency greatly, in the stickup of the two ends of vibrating diaphragm damping material is set, guarantee that circuit can directly not touch magnetic conductive board, thereby avoided bumping circle sound, make the tonequality perfection.

Description of drawings

Fig. 1 cross section sectional structure of the present utility model schematic diagram;

Fig. 2 is the planar structure schematic diagram of folding back vibrating diaphragm;

Fig. 3, Fig. 4 are the prior art constructions schematic diagram.

Embodiment

Below in conjunction with accompanying drawing the utility model is described further.

Ribbon tweeters, comprise upper conduction magnetic board 1,1a and following magnetic conductive board 3, the width sum of upper conduction magnetic board 1,1a is less than the width of following magnetic conductive board 3, upper conduction magnetic board 1, two ends, the 1a left and right sides respectively with following magnetic conductive board 3 justify aligns, thereby form a gap between upper conduction magnetic board 1, the 1a, be equipped with

magnet

2,2a between upper conduction magnetic board 1,1a and the following magnetic conductive board 3,

magnet

2,2a two ends respectively with following magnetic conductive board 3 justify aligns, the width of

magnet

2,2a is respectively less than the width of upper conduction magnetic board 1,1a, so

magnet

2,2a have also formed a gap.Upper conduction magnetic board 1,1a, following magnetic conductive board 3 and

magnet

2,2a constitute a magnetic loop and form a parallel magnetic field, and middle gap is a magnetic gap.Pars intermedia at rectangle vibrating diaphragm 4 is printed with circuit 5, and vibrating diaphragm 4 adopts the polyimide film that covers copper or cover aluminium, uses etching technique printed wiring 5 on vibrating diaphragm 4 of printed circuit then.Vibrating diaphragm 4 is folded into down " people " font, bottom circuit 5 is inserted between the magnetic circuit gap of upper conduction magnetic board 1,1a formation, thereby obtains higher electro-acoustic conversion efficiency, the sense of current that is provided with on the circuit 5 is necessary in the same way.The two ends of following magnetic conductive board 3 are equipped with fixed mount 6, and vibrating diaphragm 4 is placed on the fixed mount 6, and two sides, vibrating diaphragm 4 both ends is all pasted damping material 7 is set, and damping material 7 can adopt sponge etc.Rely on the elastic force of damping material 7, make circuit 7 can not run into upper conduction magnetic board 1,1a, the upper conduction magnetic board 1 that rubs when preventing on the vibrating diaphragm printed wiring 5 vibrations, 1a and send impure sound.

The above is embodiment of the present utility model and the know-why used, but not as to qualification of the present utility model, any based on the equivalent transformation on the technical solutions of the utility model basis, all belong within the utility model protection range.

Claims

1. ribbon tweeters, it is characterized in that comprising upper conduction magnetic board (1,1a) with following magnetic conductive board (3), upper conduction magnetic board (1, width sum 1a) is less than the width of following magnetic conductive board (3), upper conduction magnetic board (1,1a) two ends, the left and right sides respectively with following magnetic conductive board (3) justify align, upper conduction magnetic board (1,1a) and between the following magnetic conductive board (3) be equipped with magnet (2,2a), magnet (2,2a) two ends respectively with following magnetic conductive board (3) justify align, vibrating diaphragm (4) is gone up printed wiring (5), vibrating diaphragm (4) is folded into down " people " font is inserted into upper conduction magnetic board (1,1a) between the space of Xing Chenging.

2. ribbon tweeters as claimed in claim 1 is characterized in that magnetic conductive board (3) two ends are equipped with fixed mount (6) down, and vibrating diaphragm (4) is placed on the fixed mount (6).

3. ribbon tweeters as claimed in claim 1, the sense of current that it is characterized in that being placed on the circuit (5) on the vibrating diaphragm (4) between upper conduction magnetic board (1, the 1a) space is identical.

4. ribbon tweeters as claimed in claim 1, the width that it is characterized in that magnet (2,2a) are respectively less than the width of upper conduction magnetic board (1,1a).

5. ribbon tweeters as claimed in claim 1 is characterized in that vibrating diaphragm (4) two sides, both ends is all pasted damping material (7) is set.