CN209057359U - A kind of loudspeaker - Google Patents

Abstract

A kind of loudspeaker, it is characterised in that: including shell, two vibrating diaphragms, coil and two magnetic parts；The coil is on the inner sidewall of the shell, fixed lid is closed in two open ends of the shell two vibrating diaphragms respectively, two magnetic parts are arranged in the shell, and a magnetic part is connect with a vibrating diaphragm, and another magnetic part is connect with another vibrating diaphragm；The magnetism of the opposite face of two magnetic parts is opposite pole；Alternating source supplies alternating current to the coil, and the alternating magnetic field for driving the magnetic part vibration is formed in the shell, and the magnetic part drives the diaphragm oscillations sounding.Loudspeaker described in the utility model drives vibrating diaphragm sounding by magnetic part, and has double sound generating mechanisms, and long service life, sounding effect is more preferably.

Description

A kind of loudspeaker

Technical field

The utility model relates to electroacoustic field more particularly to a kind of loudspeakers.

Background technique

Loudspeaker is also known as " loudspeaker ".It is a kind of very common electro-acoustic transducer device, in the electronic electric equipment of sounding It can be seen；Influence of the performance superiority and inferiority of loudspeaker to sound quality is very big.Loudspeaker is one most weak in stereo set Device, and for acoustics, it is a most important component again.Loudspeaker it is many kinds of, and price differ It is very big.Audio electric energy makes its cone or diaphragm vibration and generates resonance with the air of surrounding by electromagnetism, piezoelectricity or electrostatic effect (sympathetic response) and make a sound.

General loudspeaker is to be fixedly connected by the coil being arranged in magnetic field with vibrating membrane, and coil is passed through alternating current Afterwards, it is moved back and forth in magnetic field high speed, makes vibrating membrane vibration sounding；Since coil makes that thermal energy can be generated in high-speed mobile, It is easy to burn out, loose wire leads to speaker fail；And most of loudspeaker is simply by a diaphragm oscillations sounding, sounding effect Fruit is general.

It would therefore be highly desirable to research and develop a kind of sounding effect more preferably, and loudspeaker with long service life.

Summary of the invention

For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of loudspeaker, pass through magnetic part Vibrating diaphragm sounding is driven, and there are double sound generating mechanisms, long service life, sounding effect is more preferably.

The utility model solves technical solution used by existing issue: a kind of loudspeaker, including shell, two vibrating diaphragms, Coil and two magnetic parts；The coil is on the inner sidewall of the shell, and fixed lid is closed described two vibrating diaphragms respectively Two open ends of shell, two magnetic parts are arranged in the shell, and a magnetic part is connect with a vibrating diaphragm, another The magnetic part is connect with another vibrating diaphragm；The magnetism of the opposite face of two magnetic parts is opposite pole；Alternating source to The coil supplies alternating current, and the alternating magnetic field for driving the magnetic part vibration, the magnetic part band are formed in the shell Move the diaphragm oscillations sounding.

Preferably, the vibrating diaphragm includes ontology and vibration section, and the vibration section is from the center of the ontology toward the shell Inner recess is formed；Circular orientation cavity is provided in the opposing sidewalls of two vibration sections, the magnetic part is fixed at In the circular orientation cavity.

Further, it is solid that cyclic spring is connected between the lateral wall of the circular orientation cavity and the inner wall of the shell Determine frame.

Further, the inner sidewall of the shell is equipped with the annular mounting groove for accommodating the coil.

Further, the shell is equipped with multiple thermal vias；The shape of the thermal vias is waist type or ellipse.

Compared with prior art, the beneficial effect of loudspeaker described in the utility model is:

1, using moving-magnetic type vibrational structure, there are double vocal structures, enhance sounding effect；

2, coil remains static at work, effectively prevents from dissipating circle, increases the service life of loudspeaker.

Detailed description of the invention

Fig. 1 is the front section view of loudspeaker described in the utility model；

Fig. 2 is the cross-sectional perspective view of vibrating diaphragm 3 described in the utility model；

Fig. 3 is the cross-sectional perspective view of shell 1 described in the utility model；

Description of symbols:

Shell 1, thermal vias 10, annular mounting groove 11, coil 2, vibrating diaphragm 3, ontology 30, vibration section 31, circular orientation chamber Body 31a, magnetic part 4, cyclic spring fixed frame 5,

Specific embodiment

The utility model is described in further detail with embodiment with reference to the accompanying drawing.

Referring to figs. 1 to Fig. 3, a kind of loudspeaker, including shell 1, two vibrating diaphragms 3, coil 2 and two magnetic parts 4；The coil 2 On the inner sidewall of the shell 1, fixed lid is closed in two open ends of the shell 1, the vibration two vibrating diaphragms 3 respectively The edge of film 3 is fixed with 1 glue connection of shell；Two magnetic parts 4 are arranged in the shell 1, a magnetic part 4 with One vibrating diaphragm 3 connects, and another magnetic part 4 is connect with another vibrating diaphragm 3.

Alternating source supplies alternating current to the coil 2, is formed in the shell 1 and drives the vibration of magnetic part 4 Alternating magnetic field, the magnetic part 4 drive 3 vibration sounding of vibrating diaphragm；The magnetism of the opposite face of two magnetic parts 4 is anisotropic magnetic Pole, makes two 4 counter motions of magnetic part, and two vibrating diaphragms 3 symmetrically sounding avoids sound chaotic.

Further, the vibrating diaphragm 3 include ontology 30 and vibration section 31, the vibration section 31 from the center of the ontology 30 toward 1 inner recess of shell is formed；Circular orientation cavity 31a, the magnetic are provided in the opposing sidewalls of two vibration sections 31 Property part 4 is fixed in the circular orientation cavity 31a by glue connection；The magnetic part 4 is circular magnet.

Further, annular elastomeric is connected between the lateral wall of the circular orientation cavity 31a and the inner wall of the shell 1 Property fixed frame 5；The cyclic spring fixed frame 5 keeps the vibration section 31 along straight reciprocating motion.

Further, the inner sidewall of the shell 1 is equipped with the annular mounting groove 11 for accommodating the coil 2；The coil 2 is set It sets in the annular mounting groove 11, the magnetic part 4 is located at 2 inside of coil.

Further, the shell 1 is equipped with two thermal vias 10；The shape of the thermal vias 10 is waist type or ellipse Type prevents 4 high-frequency vibration of magnetic part from causing to overheat.

In addition, the utility model is not limited to above embodiment, as long as it reaches this reality with essentially identical means With novel technical effect, the protection scope of the utility model all should belong to.

Claims (5)

1. a kind of loudspeaker, it is characterised in that: including shell (1), two vibrating diaphragms (3), coil (2) and two magnetic parts (4)；The line (2) are enclosed on the inner sidewall of the shell (1), two vibrating diaphragms (3) respectively open the two of the shell (1) by fixed lid conjunction Mouth end, two magnetic parts (4) are arranged in the shell, each magnetic part (4) and the fixed company of a vibrating diaphragm (3) It connects；The magnetism of the opposite face of two magnetic parts (4) is opposite pole；Alternating source supplies alternating current to the coil (2), The alternating magnetic field for driving magnetic part (4) vibration is formed in the shell (1), the magnetic part (4) drives the vibrating diaphragm (3) Vibration sounding.

2. loudspeaker according to claim 1, it is characterised in that: the vibrating diaphragm (3) includes ontology (30) and vibration section (31), the vibration section (31) is formed from the center of the ontology (30) toward the shell (1) inner recess；Two vibration sections (31) it is provided in opposing sidewalls circular orientation cavity (31a), the magnetic part (4) is fixed at the circular orientation chamber In body (31a).

3. loudspeaker according to claim 2, it is characterised in that: the lateral wall of the circular orientation cavity (31a) and institute It states and is connected with cyclic spring fixed frame (5) between the inner wall of shell (1).

4. loudspeaker according to claim 1, it is characterised in that: the inner sidewall of the shell (1), which is equipped with, accommodates the line Enclose the annular mounting groove (11) of (2).

5. loudspeaker according to claim 1, it is characterised in that: the shell (1) is equipped with multiple thermal vias (10)； The shape of the thermal vias (10) is waist type or ellipse.