Sound generator with high sound level and manufacturing method thereof

A sound generator and sound level technology, applied in the manufacture of high sound level sound generators, the field of high sound level sound generators, can solve the problems affecting the sound volume and high density of the internal speakers, and reduce the filling density, sound level, and reduce The effect of volume loss

Pending Publication Date: 2017-09-08
宁波东方电子有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above patents solve the problems of rain erosion and waterproofing, but after the epoxy resin is filled in the shell, the pure epoxy resin filling has a high density, which will affect the sound volume of the internal speaker

Method used

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  • Sound generator with high sound level and manufacturing method thereof
  • Sound generator with high sound level and manufacturing method thereof
  • Sound generator with high sound level and manufacturing method thereof

Examples

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Embodiment Construction

[0028] In order to make it easy to understand the technical means, creative features, goals and effects achieved by the present invention, the following examples are combined with the appended Figures 1 to 4 The high-sound-level sound generator provided by the present invention is described in detail.

[0029] refer to figure 1 , is a schematic diagram of the split structure of the high sound level sound generator; figure 2 , is a schematic diagram of the side section structure of the high sound level sound generator; and image 3 , is a schematic diagram of the front structure of the high-sound-level sound generator; and Figure 4 , is a schematic diagram of the back structure of the high sound level sound generator. defined as figure 2 The structure shown in is the product side orientation, and figure 2 The direction from right to left of the middle paper plane is the direction from the front end to the rear end of the present invention.

[0030] Such as Figure 1...

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Abstract

The invention discloses a sound generator with a high sound level. The sound generator comprises a shell with penetrated front and back ends, a loudspeaker arranged in the shell and a PCB, wherein the loudspeaker is electrically connected with the PCB, the loudspeaker is fixedly installed in the shell and divides the interior of the shell into a front cavity and a back cavity, a mixed layer formed by mixing epoxy resin with light material particles is arranged in the back cavity, and the back end of the loudspeaker and the PCB are coated in the mixed layer. The invention further discloses a manufacturing method of the sound generator. The method comprises the following steps: a, assembling the loudspeaker in the shell, and coating waterproof glue for fixing the loudspeaker; step b, mounting the PCB on the back end of the loudspeaker through bolts, and mounting a sound cavity cover in the front cavity; step c, mounting a screw hole column on the periphery of the sound cavity cover, and injecting glue for sealing the screw hole column; step d, injecting plastic particles in the back cavity; and step e, injecting epoxy resin glue in the back cavity. The technical scheme adopts the mixture of the epoxy resin and the light material particles to effectively reduce the density, effectively improve the volume and play a waterproof function.

Description

technical field [0001] The invention relates to the technical field of sound generator equipment for outdoor use, in particular to a high sound level sound generator, and also to a manufacturing method of the high sound level sound generator. Background technique [0002] Sound generators are widely used in life and industry, especially on engineering vehicles, and conventional sound generators generally include housings, circuit boards and loudspeakers. The circuit boards and loudspeakers are all located in the housings, and the circuit boards are electrically connected . [0003] Refer to the patent No. as the Chinese patent "waterproof sounder" of CN204652637U, which discloses a waterproof sounder, comprising a housing (1), a circuit board (2) and a loudspeaker (3), the circuit board (2), The loudspeakers (3) are all arranged in the housing (1), and the circuit board (2) is electrically connected to the loudspeakers (3); the sealing between the loudspeakers (3) and the h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/02H04R27/00H04R31/00
CPCH04R1/025H04R27/00H04R31/00
Inventor 王建成张坤沈海华
Owner 宁波东方电子有限公司
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