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Speakers and enclosures for speakers

A loudspeaker and frame body technology, which is applied to the fixing of loudspeaker transducers, sensors, and sensor components, etc., can solve the problems of large loudspeakers, insufficient vibration suppression of the outer wall, and complexity.

Active Publication Date: 2016-08-24
THERMOS LLC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this speaker, since it is necessary to provide an elastic body at the joint between the outer wall and the inner wall in order to suppress the vibration propagating around, it becomes a structure with a high risk of damage to the vacuum of the closed space due to impact, aging, etc. (see of Patent Document 1 figure 2 )
[0011] In addition, in the structure provided with the enclosure fixed reinforcing material like the loudspeaker proposed in Patent Document 2, the suppression of the vibration of the outer wall portion (particularly, the vibration of the direct transmission) becomes insufficient.
Therefore, in the speaker of this structure, in the case of suppressing the negative influence of the sound wave caused by the vibration of the outer wall part, it is necessary to provide a sound absorbing material on the outer side of the outer wall part, and to provide a design for holding the sound absorbing material on the outer side thereof. housing, resulting in unnecessary large and complicated speaker construction

Method used

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  • Speakers and enclosures for speakers
  • Speakers and enclosures for speakers
  • Speakers and enclosures for speakers

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0111] Figure 4 It is a sectional view showing the first example of the speaker according to the embodiment of the present invention, and shows the same as figure 2 The section shown (section along line A-A, refer to figure 1 ) equivalent profile.

[0112] Such as Figure 4 As shown, in the speaker 1A of this example, the speaker unit 10 is fixed and supported by the inner wall portion 21 by the support structure provided at the contact portion between the speaker unit 10 and the inner wall portion 21 . Specifically, in the speaker 1A of this example, the convex portion 211 provided on the inner wall portion 21 fits into the concave portion 131 provided on the outer surface of the unit support portion 13, whereby the speaker unit 10 is fixed and supported on the inner wall portion 21. .

[0113] In this case, for example, by utilizing elastic deformation of at least one of the unit support portion 13 and the frame body 20, the rear end portion of the unit support portion...

no. 2 example

[0118] Figure 5 is a cross-sectional view showing a second example of the speaker according to the embodiment of the present invention, and shows the same figure 2 The section shown (section along line A-A, refer to figure 1 ) equivalent profile.

[0119] Such as Figure 5 As shown, in the speaker 1B of this example, the shape (outer diameter) of the section (section in the left-right direction in the figure) parallel to the opening surface 24 of the part of the speaker unit 10 inserted into the space inside the inner wall portion 21 follows from The space inside the inner wall portion 21 gradually increases toward the opening surface 24 . Specifically, in the speaker 1B of this example, the tapered surface 132 whose shape gradually increases in cross-section (the cross-section in the left-right direction in the figure) facing forward and parallel to the opening surface 24 is provided on the outer surface of the unit support portion 13. .

[0120] When the speaker unit ...

no. 3 example

[0123] Figure 6 is a cross-sectional view showing a third example of the speaker according to the embodiment of the present invention, and shows the same figure 2 The section shown (section along line A-A, refer to figure 1 ) equivalent profile.

[0124] Such as Figure 6 As shown, in the speaker 1C of this example, the inner wall portion 21 is provided with a neck portion 212 (stepped portion) protruding toward the inner space. Furthermore, the speaker unit 10 is supported by the inner wall portion 21 in a state where the end portion of the speaker unit 10 inserted into the space inside the inner wall portion 21 is in contact with the neck portion 212 .

[0125] As described above, if the neck portion 212 is provided on the inner wall portion 21 , the position of the speaker unit 10 in the space inside the inner wall portion 21 can be easily determined.

[0126] In addition, the neck portion 212 (stepped portion) only needs to have a shape capable of contacting the end ...

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PUM

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Abstract

A speaker and a speaker housing are provided, with which the propagation of sound waves through the housing is effectively suppressed using a simple structure. This speaker (1D) is provided with a speaker unit (10) and a housing (20). The housing (20) is a double-walled structure which is provided with: an inner wall part (21) which is provided with one open portion, and which has a space provided therein; and an outer wall part (22) which is provided with one open portion, and which has the inner wall part (21) disposed in a space provided therein. Furthermore, an open end of the inner wall part (21) and an open end of the outer wall part (22) are integrated to form a peripheral edge part (231), and thus a space between the inner wall part (21) and the outer wall part (22) becomes a sealed space. At least one portion of the speaker unit (10) is provided in the space inside the inner wall part (21), and is supported in contact with the inner wall part, in a position away from the peripheral edge part (231). Furthermore, in a cross section orthogonal with respect to an opening surface having the peripheral edge part (231) as an outer periphery thereof, the peripheral edge part (231) is V-shaped.

Description

technical field [0001] The present invention relates to a speaker with a double wall structure and a speaker frame applied to the speaker. Background technique [0002] Generally, a speaker includes a speaker unit that vibrates air in response to an input electric signal to radiate sound waves forward (hereinafter referred to as “forward waves”) and a housing that supports the speaker unit. In order to prevent unnecessary sound waves (hereinafter referred to as "backward waves") radiating backward from the speaker unit in reverse phase to the forward wave from interfering with the forward wave, the housing is shaped to shield the space behind the speaker unit. . [0003] However, in the speaker described above, the space inside the casing vibrates due to pressure fluctuations due to backward waves radiated from the rear of the speaker unit, and the wall surface of the casing is excited by the vibration of the space to vibrate. Furthermore, when the wall surface of the hous...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R1/02H04R1/28
CPCH04R1/2888H04R1/025H04R1/2819
Inventor 初本邦生汤口和广
Owner THERMOS LLC