Speaker device having directivity adjustment panel

A loudspeaker and directivity technology, which is applied to frequency/direction characteristic devices, sensors, sensor parts, etc., can solve the problems of high price of loudspeaker devices and the inability to apply audio equipment, etc., and achieve the effect of good frequency characteristics

Inactive Publication Date: 2010-12-01
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as mentioned above, when such a tweeter with a wide frequency band is used, the price as a speaker device becomes high, and it cannot be applied to audio equipment sold at a low price.

Method used

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  • Speaker device having directivity adjustment panel
  • Speaker device having directivity adjustment panel
  • Speaker device having directivity adjustment panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0065] Hereinafter, the first embodiment will be described in detail. The first embodiment uses an example of a virtual coaxial speaker device as a suitable embodiment of the speaker device having a directivity adjusting plate of the present invention.

[0066] figure 1 It is a perspective view showing a virtual coaxial speaker device according to Embodiment 1 of the present invention. figure 2 It is a diagram showing the positional relationship between the virtual coaxial speaker device of Embodiment 1 and the listener. in figure 2 Here, a virtual coaxial speaker device is shown as a side cross-sectional view.

[0067] In the virtual coaxial speaker device of the first embodiment, two woofers 2 and 3 are arranged in a row with one tweeter 4 sandwiched between two woofers 2 and 3 on the speaker cabinet 1 which is a rectangular parallelepiped cabinet. The speaker cabinet 1 is a low-frequency reflective speaker cabinet with a thickness of 3 mm, a width of 100 mm, a height of 300 m...

Embodiment approach 2

[0111] Hereinafter, as a suitable embodiment of the speaker device having a directivity adjusting plate of the present invention, an example of a speaker device having a full-band speaker unit will be described in detail for the second embodiment. Figure 17 It is a perspective view showing a speaker device having a full-band speaker unit 40 according to Embodiment 2 of the present invention. Figure 18 It is a cross-sectional view showing the vicinity of the front baffle part of the speaker device of the second embodiment.

[0112] Such as Figure 17 As shown, directivity adjustment plates 50 and 60 are provided on the speaker cabinet 1 provided with the full-band speaker unit 40. The directivity adjusting plates 50 and 60 of the speaker device of the second embodiment have the same functions as the directivity adjusting plates 5 and 6 of the virtual coaxial speaker device of the first embodiment described above.

[0113] The directivity adjusting plates 50 and 60 in the speaker de...

Embodiment approach 3

[0121] Hereinafter, as a suitable embodiment of the speaker device having a directivity adjusting plate of the present invention, an example of a speaker device having a two-channel coaxial speaker unit including a woofer and a tweeter will be described in detail in the third embodiment. Figure 19 It is a front view showing a speaker device provided with a coaxial speaker unit 41 according to Embodiment 3 of the present invention.

[0122] Such as Figure 19 As shown, the speaker cabinet 1 of the speaker device of the third embodiment is provided with a coaxial speaker unit 41 having a woofer 41a and a center pole disposed at the center of the woofer 41a. Tweeter 41b. The speaker cabinet 1 provided with the coaxial speaker unit 41 is provided with directivity adjusting plates 51 and 61 in the same manner as in the above-mentioned first and second embodiments. The directivity adjustment plates 51, 61 in the speaker device of the third embodiment have the same functions as the dir...

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PUM

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Abstract

A speaker device having a simple structure and exhibiting a wide directivity and an excellent frequency characteristic. A directivity adjustment panel covering a part of the vibration region of a diaphragm of a speaker unit is disposed at a distance from the edge portion of the periphery of the diaphragm and reflects the sound wave received from the diaphragm toward the direction of the diaphragm.

Description

Technical field [0001] The present invention relates to a speaker device having a directivity adjustment plate for adjusting the directivity of sound. Background technique [0002] As a speaker device designed to cover the audio frequency band of about 20 Hz to 20 kHz in the human audible range as much as possible, there is a speaker device provided with a full-band speaker unit. The full-band speaker unit is configured such that each audio frequency band of the low audio frequency band and the high audio frequency band with the middle audio frequency band as the center is covered by one speaker unit. Since the full-band speaker unit has one sound source, it is excellent in sound image localization and has the advantage of being able to be manufactured at low cost. [0003] However, since it is difficult to cover the entire audio frequency band with a single speaker unit, various speaker devices constructed in a manner that combines a plurality of speaker units to cover a wide aud...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/34H04R1/26H04R1/28H04R1/32
CPCH04R2499/13H04R1/26H04R1/345
Inventor 中谷英次
Owner PANASONIC CORP
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