CN2746694Y

CN2746694Y - High pitch loudspeaker

Info

Publication number: CN2746694Y
Application number: CN 200420091885
Authority: CN
Inventors: 郝晋青
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-30
Filing date: 2004-09-30
Publication date: 2005-12-14
Anticipated expiration: 2014-09-30

Abstract

The utility model relates to a high pitch loudspeaker, comprising a back cavity. The back cavity is fixed with a magnetizer, the magnetizer is fixed with a magnet, the upper part of the magnet is fixed with a magnetizing board, the upper part of the magnetizing board is fixed with a lining pad, the lining pad is covered with a vibrating membrane, the lower part of the vibrating membrane is fixed with the voice coil rack of a ring support having a V-shaped cross section, the voice coil rack is fixed with a voice coil, and the surfaces of the inner ring surface and the outer ring surface of the ring support having the v-shaped cross section at the upper end of the voice coil rack are discontinuous annular surfaces. The discontinuous positions of the discontinuous annular surfaces of the inner ring surface and the outer ring surface of the ring support having the V-shaped cross section at the upper end of the voice coil rack are opposite or crossed. The shape and the structure of the existing high pitch loudspeaker with the ring support having the V-shaped cross section at the upper end of the voice coil rack is improved via the utility model, the simultaneous vibration of every part of the vibrating membrane is ensured, simultaneously the reflection area of acoustic wave on the surface of the voice coil rack is reduced, and high frequency standing wave generated when the voice coil rack vibrates is effectively prevented.

Description

High pitch loudspeaker

Technical field

The utility model relates to loud speaker, is specially a kind of high pitch loudspeaker.

Background technology

High pitch loudspeaker comprises the back cavity that its inner chamber is full of sound-absorbing material, is fixed with magnetic conductor on back cavity, is fixed with magnet on the magnetic conductor, magnet top is fixed with liner, be coated with vibrating diaphragm on the liner, the vibrating diaphragm below is fixed with the round barrel shape sound ring frame, is fixed with voice coil loudspeaker voice coil on the sound ring frame.High pitch loudspeaker is when sending high pitch, and vibrating diaphragm easily produces cuts apart vibration---and be that the vibration of vibrating diaphragm each several part is asynchronous, thereby influence the high pitch tonequality of loud speaker.Cut apart vibration for suppressing or weakening, the whole vibrating diaphragm of high pitch loudspeaker is divided into several annular sections.Because the sound ring frame of existing high pitch loudspeaker is a round barrel shape, its main support is at the middle part of vibrating diaphragm, limited with the contact area of vibrating diaphragm, cause near and away from the vibration phase in the vibrating diaphragm zone of sound ring frame inconsistent (vibration of vibrating diaphragm each several part is asynchronous), the high pitch upper limiting frequency that influence loud speaker responds.For this reason, prior art is provided with the ring support of cross section for " V " shape in the sound ring frame upper end, but the cross section of setting up produces the high frequency standing wave when making the sound ring frame vibration, thereby the tonequality of high pitch loudspeaker is impacted for the ring support of " V " shape has bigger acoustic reflection area.

Summary of the invention

The utility model is primarily aimed at existing its sound ring frame upper end and is provided with the high pitch loudspeaker of cross section for the ring support of " V " shape, its cross section has bigger acoustic reflection area for the ring support of " V " shape, produce the high frequency standing wave when making the sound ring frame vibration, thereby, provide a kind of high pitch loudspeaker that improves structure that has to the problem that the tonequality of high pitch loudspeaker impacts.

The utility model is to adopt following technical scheme to realize: high pitch loudspeaker, comprise back cavity, on back cavity, be fixed with magnetic conductor, be fixed with magnet on the magnetic conductor, magnet top is fixed with magnetic conductive board, magnetic conductive board top is fixed with liner, be coated with vibrating diaphragm on the liner, the vibrating diaphragm below is fixed with its upper end and is provided with the sound ring frame of cross section for the ring support of " V " shape, be fixed with voice coil loudspeaker voice coil on the sound ring frame, end section is the ring surface of inside and outside circle surface for being interrupted of the ring support of " V " shape on the sound ring frame, and promptly inside and outside circle surface is discrete ring surface.Like this, can reduce the reflective surface area of sound ring frame surface fully, produce the high frequency standing wave when preventing the sound ring frame vibration sound wave.

Improve for the shape and structure that the ring of " V " shape supports in the utility model is provided with the high pitch loudspeaker that supports for the ring of " V " shape in the cross section to existing its sound ring frame upper end cross section, when guaranteeing that the vibration of vibrating diaphragm each several part is synchronous, reduced the reflective surface area of sound ring frame surface, produced the high frequency standing wave when effectively having prevented the sound ring frame vibration sound wave.The tonequality of the high pitch loudspeaker after therefore improving is significantly improved, and sound is the more natural grace of high pitch particularly.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the vertical view of sound ring frame;

Fig. 3 is the vertical view of the sound ring frame of another kind of structure;

Fig. 4 is sound ring frame partial structurtes vertical views;

Embodiment

High pitch loudspeaker, comprise back cavity 10, on back cavity, be fixed with magnetic conductor 9, be fixed with magnet 8 on the magnetic conductor, magnet top is fixed with magnetic conductive board 7, and magnetic conductive board top is fixed with liner 6, be coated with vibrating diaphragm 4 on the liner, the vibrating diaphragm below is fixed with its upper end and is provided with the sound ring frame 3 that the cross section is the ring support of " V " shape, is fixed with voice coil loudspeaker voice coil 5 on the sound ring frame, and end section is that the inside and outside circle surface of the ring support of " V " shape is the ring surface of interruption on the sound ring frame.

Sound ring frame upper end is cut and is the relative (see figure 2) of discontinuities on the ring surface that is interrupted of inside and outside circle that the ring of " V " shape supports.

Sound ring frame upper end is cut and is discontinuities on the ring surface that is interrupted of inside and outside circle that the ring of " V " shape the supports (see figure 3) that interlaces.

End section makes the middle and lower part of reservation face become shaft-like (see figure 4) for the both sides at the following middle part of the reservation face on the ring surface of the inside and outside circle interruption of the ring support of " V " shape are bent upwards on the sound ring frame.So not only can increase the support strength of reservation face, and further reduce the reflective surface area of sound ring frame surface sound wave.

For making the vibrating diaphragm centre further keep vibration synchronously with the vibrating diaphragm other parts, increase the sensitivity that the high pitch upper limiting frequency is reset, below the vibrating diaphragm centre, be provided with the damping post 11 that the lower end is fixed with the magnetic conductor top, the upper end contacts with the vibrating diaphragm centre, and on the damping post, be provided with elastic buffer ring section 12.This elastic buffer ring section can be spirogyrate or concave shaped.The damping post plays the vibration damping effect to the centre of vibrating diaphragm, further improves the frequency response of loud speaker in the treble frequency section.

Damping post 11 is with vibrating diaphragm centre jack-up (other parts that promptly are higher than vibrating diaphragm).Like this, can make high pitch loudspeaker better in the frequency response of treble frequency section.

Claims

1, a kind of high pitch loudspeaker, comprise back cavity (10), on back cavity, be fixed with magnetic conductor (9), be fixed with magnet (8) on the magnetic conductor, magnet top is fixed with magnetic conductive board (7), magnetic conductive board top is fixed with liner (6), be coated with vibrating diaphragm (4) on the liner, the vibrating diaphragm below is fixed with its upper end and is provided with the sound ring frame (3) of cross section for the ring support of " V " shape, be fixed with voice coil loudspeaker voice coil (5) on the sound ring frame, it is characterized by: end section is the ring surface of inside and outside circle surface for being interrupted of the ring support of " V " shape on the sound ring frame.

2, high pitch loudspeaker as claimed in claim 1 is characterized by: end section is relative for the discontinuities on the ring surface of the inside and outside circle interruption of the ring support of " V " shape on the sound ring frame.

3, high pitch loudspeaker as claimed in claim 1 is characterized by: end section interlaces for the discontinuities on the ring surface of the inside and outside circle interruption of the ring support of " V " shape on the sound ring frame.

4, as claim 1 or 2 or 3 described high pitch loudspeakers, it is characterized by: end section makes the middle and lower part of reservation face become shaft-like for the both sides at the following middle part of the reservation face on the ring surface of the inside and outside circle interruption of the ring support of " V " shape are bent upwards on the sound ring frame.

5, as claim 1 or 2 or 3 described high pitch loudspeakers, it is characterized by: below the vibrating diaphragm centre, be provided with the damping post (11) that the lower end is fixed with the magnetic conductor top, the upper end contacts with the vibrating diaphragm centre, and on the damping post, be provided with elastic buffer ring section (12).

6, high pitch loudspeaker as claimed in claim 5 is characterized by: damping post (11) is with vibrating diaphragm centre jack-up.