Surface-mounted ultrathin ceiling sound box without hole

A surface-mounted, ultra-thin technology, applied in the direction of frequency/direction characteristic devices, etc., can solve the problems of poor bass playback, inability to realize speaker cabinets, and inability to achieve sealing, etc., to achieve less mechanical vibration and facilitate ceiling installation , Reduce the effect of the installation process

Pending Publication Date: 2020-07-03
SHEN ZHEN NEUSOUND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the "Speaker and Sound Box Design Manual" published by Fujian Science and Technology Press in July 2008, the closed sound box (60-67 pages), the open-type sound box (66-67 pages), the passive radiation sound box (77 pages) are disclosed. ~78 pages); These disclosed prior art loudspeakers, either volume is too big, installation height is too big, or bass sound reproduction effect is not good
The ceiling speaker of the prior art is just a speaker with an installation frame, and its caliber is generally 5.25 inches to 8 inches. It is installed on the ceiling and uses the space of the ceiling as a "cabinet"; And the headroom is either too large or too small to achieve a true speaker cabinet, at best it is an acoustically large baffle; therefore, the sound quality is not good, especially the bass

Method used

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  • Surface-mounted ultrathin ceiling sound box without hole
  • Surface-mounted ultrathin ceiling sound box without hole
  • Surface-mounted ultrathin ceiling sound box without hole

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0070] Such as Figure 1A ~ 1C As shown, the ultra-thin box body 1 of this embodiment can be made of plastics, and can also be made of metal materials (such as aluminum, iron) and the like. Present embodiment is manufactured with the method for mold opening injection molding, first designs its outward appearance and structure, then mold opening is manufactured with injection molding machine. The ultra-thin casing 1 of the present embodiment is thin cylindrical, and the front and rear casing walls 5, 6 are parallel to each other, with a diameter of 200 mm and a thickness of 26 mm.

[0071] The active loudspeaker 3 of this embodiment is a full-range loudspeaker, and the active loudspeaker 3 can be a circular loudspeaker or an elliptical loudspeaker. For a round loudspeaker, its diameter is 2 inches to 4.5 inches. What this embodiment uses is 3.5-inch full-range speaker, the active speaker 3 is installed on the front wall 5 of the ultra-thin box 1, and the diaphragm of the activ...

Embodiment 2

[0074] Such as Figure 2A-2C As shown, the difference between this real-time example and Embodiment 1 is: this embodiment has increased a tweeter 7, and this tweeter 7 can be a dome tweeter or a cone tweeter. What this embodiment uses is A cone tweeter with a diameter of 1.5 inches is installed on the front box wall 5 of the ultra-thin box body 1 . All the other are identical with embodiment one.

Embodiment 3

[0076] Such as Figure 3A ~ 3C As shown, the difference between the present embodiment and the second embodiment is that the ultra-thin cabinet 1 of the present embodiment is rectangular, and the specific dimensions are: 240 mm long × 160 mm wide × 26 mm thick; in addition, the ultra-thin cabinet 1 is divided into There are two independent cavities, the active speaker 3 and the passive speaker 4 are located in one of the independent cavities, and the tweeter 7 is located in the other independent cavity. The surface mount device 2 of this embodiment is mounted on the wall with a drop-shaped fixing hole 203 . All the other are identical with embodiment two.

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Abstract

The invention relates to a public broadcasting building fire-fighting ceiling loudspeaker. The hole-free surface mounting type ultrathin ceiling sound box comprises an ultrathin box body, a surface mounting device, an active loudspeaker and a passive loudspeaker, the surface mounting device is arranged on the box wall of the side, facing a mounting carrier, of the ultrathin box body during mounting, and the ultrathin box body is mounted on the mounting carrier through the surface mounting device; an active loudspeaker and a passive loudspeaker are respectively arranged in the ultrathin box body, the active loudspeaker is installed on the box wall facing the sound listening space except the box wall on the side in the thickness direction, and the passive loudspeaker is installed on the other box wall except the box wall on the side in the thickness direction. The thickness of the ultrathin ceiling sound box is very small and is only about 30mm, and the ultrathin ceiling sound box is provided with the surface mounting device, so that the ultrathin ceiling sound box can be directly mounted on the surface of a ceiling without forming a hole in the ceiling, the mounting process is reduced, the mounting difficulty and cost are reduced, and the application range is expanded.

Description

technical field [0001] The invention relates to a fire-fighting ceiling loudspeaker of a public broadcasting building, in particular to an ultra-thin ceiling-mounted loudspeaker without opening a hole. Background technique [0002] Ceiling speakers are used for public broadcasting and building fire protection, and are generally installed on indoor suspended ceilings (also known as ceilings, etc.) or concealedly installed on walls. Ceiling speakers of traditional technology are generally more than 80mm in height and cannot be directly surface-mounted. A hole of about 150mm to 200mm must be opened in the ceiling to install the ceiling speaker embedded on the ceiling. These in-ceiling speakers use traditional technology that has been in use for over 50 years. In the "Speaker and Sound Box Design Manual" published by Fujian Science and Technology Press in July 2008, the closed sound box (60-67 pages), the open-type sound box (66-67 pages), the passive radiation sound box (77 pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/20
CPCH04R1/20
Inventor 郑晗于燕燕郑全录
Owner SHEN ZHEN NEUSOUND
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