CN201336725Y

CN201336725Y - Loudspeaker

Info

Publication number: CN201336725Y
Application number: CNU200920113358XU
Authority: CN
Inventors: 高可杰
Original assignee: Ningbo Yangjiale Electronic Co Ltd
Current assignee: Ningbo Yangjiale Electronic Co Ltd
Priority date: 2009-01-20
Filing date: 2009-01-20
Publication date: 2009-10-28
Anticipated expiration: 2019-01-20

Abstract

The utility model relates to a loudspeaker which is designed for solving the technical problems in a prior flat-plane-speaker that structures of a cone and a cone stand are not good enough and the area of an effective vibration film is smaller. A wiring terminal is formed on the outside diameter of the cone stand of the loudspeaker; a first magnet is connected with an iron sheet which is connected with a second magnet; a frame of a voice coil is sleeved with the first magnet, the iron sheet and the second magnet; one end of the voice coil is sleeved with the cone stand and a U-shaped iron, and the other end of the voice coil props against the cone; and the cone stand is fixedly connected with the U-shaped iron through a mounting hole. The utility model adopts design points that a cone height is arranged between a conical body of the cone and a corrugated rim, a portal-type hollow cavity is formed by the conical body and the corrugated rim, and the corrugated rim is connected with the cone stand. Compared with the cone in the prior flat-plane-speaker, the loudspeaker increases the effective vibration film area. The design is reasonable, the structure is simple, the assembly is convenient, the efficiency is high, and the loudspeaker is suitable for various dynamic loudspeakers and is also suitable for being used together with productions required by the similar loudspeakers.

Description

Loud speaker

Technical field

The utility model relates to a kind of loud speaker, the architecture advances of especially plate shaped loud speaker middle pitch basin.

Background technology

Loud speaker is a kind of electro-acoustic transducer device very commonly used in the electronic circuit of speaking, and the audio frequency electric energy makes its cone or diaphragm vibration surrounding air cause sound equipment by electromagnetism, piezoelectricity or electrostatic effect.At present, the loud speaker of selling on the market of a great variety, style is different, by unusual taper, the three kinds of loud speakers of plate shaped and ball top shape of being divided into of the form of its sound basin (being vibrating diaphragm), vibrating diaphragm generally is made up of cone and ring two parts.The cone of vibrating diaphragm and ring have a variety of forms, satisfy different design needs respectively.The ZL patent No. 00249973.8 as the Chinese patent literature publication, October 3 calendar year 2001 Granted publication day, utility model title " regular polygon loudspeaker cone and basin frame ", the ZL patent No. 02251315.9 of Chinese patent literature publication, December 31 2003 Granted publication day, utility model title " honeycomb type integrate shaped type sound basin ", the sound basin of above-mentioned two kinds of cone loudspeakers is inserted in voice coil loudspeaker voice coil, and the ring by vibrating diaphragm is connected with the basin frame.The ZL patent No. 00201864.0 of Chinese patent literature publication, November 22 2000 Granted publication day, utility model title " a kind of loudspeaker cone ", the sound basin of this plate shaped loud speaker is inserted in voice coil loudspeaker voice coil, laterally is connected with the basin frame by ring.But mainly on cone, ring takies effective vibrating diaphragm area (being the area of the effective diameter in sound basin front) of loud speaker to the architecture advances of above-mentioned three kinds of sound basins, makes its efficient reduce especially plate shaped loud speaker.

Summary of the invention

The utility model is to overcome above-mentioned deficiency, and purpose is the loud speaker that a kind of novel sound basin structure is provided to this area, and solution has plate shaped loud speaker middle pitch basin now, the basin shelf structure is not good enough and the less technical problem of effective vibrating diaphragm area.Specifically realize by the following technical solutions.

A kind of loud speaker, this loud speaker comprises the sound basin, plays ripple, lead-in wire, voice coil loudspeaker voice coil, basin frame, binding post, first magnet, iron plate, second magnet, U iron, the external diameter of basin frame is provided with binding post, first magnet is connected with iron plate, iron plate is connected with second magnet, and the skeleton of voice coil loudspeaker voice coil is inserted in first magnet, iron plate, second magnet, voice coil loudspeaker voice coil one end cover engagement frame and U iron, the voice coil loudspeaker voice coil other end and sound basin offset, and the basin frame is connected with the U ferropexy by installing hole.Its key points in design is to be provided with the basin height between the cone of described sound basin and the ring, and cone and ring are " ㄇ " type cavity, and ring is connected with the basin frame.Existing vibrating diaphragm is made up of sound basin and ring two parts, and the ring of plate shaped loud speaker is connected with the basin frame, and a part of ring area is not counted effective vibrating diaphragm area.Sound basin of the present utility model is provided with the basin height of certain altitude, and the ring by the sound basin is connected with the basin frame, and ring does not take effective vibrating diaphragm area, and its effective vibrating diaphragm area increases than effective vibrating diaphragm area of the existing plate shaped diaphragm of loudspeaker.

The curved projection in cone symmetry both sides at described sound basin top, the external diameter basin height of sound basin is provided with inner concave shape paper circle, and the basin mouth of the ring of sound basin and basin frame is tightly connected.When the sound basin has dust reduction capability, also be the part of vibrating diaphragm sounding.The sound basin has increased the area of the effective diameter in sound basin front by the high paper circle of the certain basin of external diameter.Play ripple and be inserted in voice coil loudspeaker voice coil, play ripple and voice coil loudspeaker voice coil external diameter and be tightly connected, play the external diameter of ripple and the internal diameter mouth of basin frame and be tightly connected.Play the internal diameter mouth of the embedded engagement frame of ripple, the strong and weak variation of electric current drives changes of magnetic field, and changes of magnetic field drives and plays ripple, the sound basin is done radial motion.

Of the present utility model reasonable in design, simple in structure, easy to assembly, the efficient height, effective vibrating diaphragm area of vibrating diaphragm is big, be suitable for various dynamic speakers, and the product of similar loud speaker demand is supporting.

Description of drawings

Fig. 1 is a structure explosive view of the present utility model.

Fig. 2 is a sound basin front view of the present utility model, has made A-A among the figure and has analysed and observe.

Fig. 3 is the A-A cutaway view of Fig. 2, and h is the basin height among the figure.

Fig. 4 is the stereogram of Fig. 2.

Fig. 5 is a basin frame stereogram of the present utility model.

Fig. 6 is the structure cutaway view of Fig. 5.

Above figure number and title: 1, sound basin, 101, cone, 102, the paper circle, 103, ring, 2, play ripple, 3, lead-in wire, 4, voice coil loudspeaker voice coil, 5, the basin frame, 501, the basin mouth, 502, the internal diameter mouth, 503, installing hole, 6, binding post, 7, first magnet, 8, iron plate, 9, second magnet, 10, U iron.

Embodiment

Execution mode is with sound basin operation principle of the present utility model and be assembled into example.Dynamic speaker is a kind of electric energy to be converted into mechanical energy, mechanical energy is converted into the electroacoustic transducer of acoustic energy again.According to η=ρ (BL) ²S _D ²/ 2 П CRMms ²Principle, the wherein efficient of η-loud speaker (efficient of loud speaker is meant the ratio of output acoustic power and input electric power), ρ-atmospheric density, the effective vibrating diaphragm area of SD-, BL-magnetic force, the C-air velocity of sound, R-D.C. resistance, Mms-equivalence oscillating mass, S _D-effective vibrating diaphragm area, BL-magnetic force, Mms-oscillating mass, its efficient is directly proportional with effective vibrating diaphragm area of magnetic flux density, sound basin, effectively vibrating diaphragm area S _DBig more, the value of its efficiency eta is big more.

As shown in Figure 1, assembling is an example with common plate shaped loud speaker.Voice coil loudspeaker voice coil 4 forms for the copper enamelled wire twines the aluminum skeleton, and first magnet 7 is connected with iron plate 8, and iron plate is connected with second magnet 9, and first magnet, iron plate, second magnet are connected as a single entity.First magnet, iron plate, second magnet are inserted in the skeleton of voice coil loudspeaker voice coil, and the skeleton of voice coil loudspeaker voice coil is inserted in U iron 10, and the basin frame is connected with the U ferropexy by installing hole 503.Play ripple 2 and be inserted in voice coil loudspeaker voice coil, be sealingly fastened in the internal diameter mouth 502 of basin frame 5.The ring 103 of sound basin 1 is tightly connected with the basin mouth 501 of basin frame, the basin frame by binding post 7 fixing with housing such as casing on, plate shaped loud speaker can assemble and finish.

Cone than existing plate shaped loud speaker middle pitch basin is directly directly different with ring, and sound basin of the present utility model is connected with the basin frame by certain high paper circle of basin between cone and the ring, and effective vibrating diaphragm area of sound basin is bigger, has improved the efficient of loud speaker.

Claims

1, a kind of loud speaker, this loud speaker comprises sound basin (1), bullet ripple (2), lead-in wire (3), voice coil loudspeaker voice coil (4), basin frame (5), binding post (6), first magnet (7), iron plate (8), second magnet (9), U iron (10), the external diameter of basin frame is provided with binding post, first magnet is connected with iron plate, iron plate is connected with second magnet, the skeleton of voice coil loudspeaker voice coil is inserted in first magnet, iron plate, second magnet, voice coil loudspeaker voice coil one end cover engagement frame and U iron, the voice coil loudspeaker voice coil other end and sound basin offset, and the basin frame is connected with the U ferropexy by installing hole (503); It is characterized in that being provided with basin height (h) between the cone (101) of described sound basin (1) and the ring (103), cone and ring are " ㄇ " type cavity, and ring (103) is connected with basin frame (5).

2, loud speaker as claimed in claim 1, the curved projection in the symmetrical both sides of cone (101) that it is characterized in that described sound basin (1) top, the external diameter basin height (h) of sound basin is provided with inner concave shape paper circle (102), and the ring of sound basin (103) is tightly connected with the basin mouth (501) of basin frame (5); Play ripple (2) and be inserted in voice coil loudspeaker voice coil (4), play ripple and voice coil loudspeaker voice coil external diameter and be tightly connected, play the external diameter of ripple and the internal diameter mouth (502) of basin frame and be tightly connected.