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Coaxial diaphragm loudspeaker unit and mirror coaxial diaphragm type sound box

A loudspeaker and diaphragm-type technology, applied in the field of coaxial diaphragm-type speakers, can solve the problems of improper size design of the box, great influence of the phase inversion effect, and difficulty in reducing the size, and achieves a simple and reliable solution, good applicability, Vibration stabilization effect

Inactive Publication Date: 2012-07-04
李世煌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] On the one hand, the design of the speaker is very important, because the size of its internal structure has a great influence on the effect of phase inversion. The volume or deviation of the same speaker in its application will have a great impact on the output sound quality. The size design of the cabinet Improper use can easily cause unwanted sound coloration; on the other hand, in order to complete its function and achieve sufficient sound quality, the size of the speaker is difficult to reduce, which brings a lot of inconvenience to the application of the speaker

Method used

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  • Coaxial diaphragm loudspeaker unit and mirror coaxial diaphragm type sound box
  • Coaxial diaphragm loudspeaker unit and mirror coaxial diaphragm type sound box
  • Coaxial diaphragm loudspeaker unit and mirror coaxial diaphragm type sound box

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Embodiment 1

[0038] Such as figure 1 , a schematic cross-sectional view of Embodiment 1 of the present invention; figure 2 yes figure 1 The front view of embodiment; be explained in conjunction with these two figures:

[0039] This embodiment one is the coaxial diaphragm loudspeaker unit, and it comprises a sound cone frame 10, and this sound cone frame 10 is the circular profile of rotational symmetry, and its central part is the electromagnetic loudspeaker, has complete sound cone 11, and passes sound cone Basin hole 12 The front of the sound cone 11 is exposed to the open space; there is a plane circular passive diaphragm 13 on the outer periphery of the sound cone 11, and the passive diaphragm 13 is respectively the inner elastic ring 14 and the outer elastic ring through the elastic parts. 15 is vibrately fixed on the cone frame 10, and at the same time, the passive diaphragm 13 is coaxial with the cone 11 and is circular in rotational symmetry.

[0040] On the sound cone frame 10...

Embodiment 2

[0042] Such as image 3 , a schematic cross-sectional view of a sound box in Embodiment 2 of the present invention; Figure 4 is this image 3 Embodiment front view; Embodiment 2 of the present invention is illustrated in conjunction with these two figures:

[0043] The sound cone frame 10 is a rotationally symmetrical component that is mirror-symmetrical in the axial direction, and is similar to the first embodiment. The speaker is fixed in the center, and the sound cone 11 faces outward through the sound cone hole 12 . The outer circumference of the loudspeaker cone 11 is a passive diaphragm 13 , which is also fixed to the cone frame by an inner elastic ring 14 and an outer elastic ring 15 . The difference from Embodiment 1 is that the entire device has mirrored units on the opposite side of the sound cone 11 and the passive diaphragm 13 in the axial direction, such as mirrored passive diaphragm 13', mirrored speaker cone 11', mirrored sound cone hole 12'; a sealing ring ...

Embodiment 3

[0045] Such as Figure 5 , the front view of the third embodiment of the present invention; the schematic sectional view of the third embodiment and image 3The second embodiment shown is basically the same, the difference is that the outer contour of the sealing ring 18 and the shape of the passive diaphragm 13 are all square, and the sound box of this form has a great advantage: multiple combinations can be formed in the horizontal direction to form an array System, if the array members resonate in different low frequency bands, the entire speaker array formed can have excellent sound reproduction ability while being small in size.

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Abstract

The invention discloses a coaxial diaphragm loudspeaker unit, comprising an electromagnetic loudspeaker, wherein the electromagnetic loudspeaker comprises a sound cone driven by a voice coil and a sound cone frame for fixing the sound cone. The coaxial diaphragm loudspeaker unit is characterized by further comprising a passive type diaphragm, wherein the passive type diaphragm is fixed on the sound cone frame through an elastic component, annularly distributed outside the sound cone circumferentially, and coaxial with the sound cone; meanwhile, one side of the passive type diaphragm is maintained to be communicated with air in one side of the sound cone and sealed; and the other side of the passive type diaphragm and the other side of the sound cone are both exposed in an opening space. The coaxial passive type diaphragm and the sound cone are uniform to air vibration inside a resonant cavity, and almost free from influences of internal geometric structures of a sealing cover; acoustic coloring is small, so that the design of the sealing cover is not restricted greatly, as long as an enough sealing property is guaranteed; and the whole loudspeaker unit has the characteristics of simple and reliable scheme as well as good applicability.

Description

technical field [0001] The invention relates to accessories in the field of electroacoustic conversion, in particular to a loudspeaker unit with a coaxial diaphragm and a coaxial diaphragm sound box using the loudspeaker unit. Background technique [0002] In the field of electro-acoustic conversion, general electromagnetic loudspeakers complete electro-acoustic conversion by driving the cone to vibrate through a live coil in a magnetic field, and both sides of the cone are exposed to the open space. Usually, the frequency response of a single electromagnetic speaker is very weak in the middle and low frequency part, because the scale of its cone is almost negligible relative to the wavelength of the middle and low frequency sound waves, so that the sound wave output on both sides of the cone is canceled when it vibrates. As a result, low- and mid-frequency sounds with sufficient power cannot be output. In order to achieve the purpose of fully restoring the mid-bass, it is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/06H04R9/02
Inventor 李世煌
Owner 李世煌
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