CN203136137U - A face shell device applied to waterproof audio - Google Patents

Abstract

The utility model relates to a face-piece device applied to waterproof stereo, it includes PCB board, face-piece and dough sheet, the PCB board is installed at the face-piece inner wall, the dough sheet is installed outside the face-piece, the face-piece adopts transparent plastic integrated injection moulding, integrated into one piece has LCD display window, scattering reflection dot matrix and astigmatism cave on the face-piece inner wall, makes the face-piece have waterproof dustproof characteristic, LCD lens function and face-piece backlight astigmatism support function, has also saved lens and panel and has shaded these spare parts of printing opacity support and assembly process; the induction type key touch circuit arranged on the PCB enables the face shell to have a touch key function, and simultaneously saves a silica gel waterproof key and an assembling procedure thereof; because the PCB is installed at the face-piece inner wall, and the dough sheet is installed in the face-piece outside, so the distance between PCB and the dough sheet has shortened by a wide margin, has improved the sensitivity of button touch-control simultaneously and has strengthened the device's environmental suitability.

Description

A face shell device applied to waterproof audio

technical field

The utility model relates to a waterproof audio accessory, in particular to a surface shell device applied to a waterproof audio.

Background technique

In today's society, audio has been widely used in various fields, but due to the restrictions or requirements of the use environment, the audio shells in yachts, special vehicles and SPA (spas) need to have a waterproof design. Now There is technology one, as shown in Figure 1, the waterproof audio cover device, one is to use the silicone button and the control method of the surrounding bone on the cover to prevent water from entering the product from the button hole; the other is to use the traditional lens paste technology The method of adding special waterproof double-sided adhesive tape to ensure the waterproof performance between the lens and the cover needs to set up an independent astigmatism body for the backlight of the buttons, which makes the assembly and production processes of parts complicated and complicated, and the production efficiency is low and the cost is low. High, the defect rate is relatively high, if the inner cavity of the silicone button is not supported by other waterproof fillers, it is difficult to resist the impact of the water column of IPX6 or above; the second existing technology, as shown in Figure 2, touch-type waterproof The audio panel device adopts the touch control method instead of the traditional button method, which avoids the defect that the button holes in the previous technology are difficult to waterproof, but the panel and the lens are still designed separately, which does not completely solve the need for adhesion between the lens and the panel. The problem of junction and waterproof, still needs astigmatism to illuminate the button area, does not solve the defects of many parts, complex production process, relatively high cost, etc. The thickness of the astigmatism increases the distance between the touch sensing circuit and the surface on the PCB, When there is a lot of condensation or water droplets on the surface, it is easy to weaken the touch sensitivity.

Contents of the invention

In order to solve the above problems, the utility model aims to disclose a design of a cover in the field of waterproof audio accessories, especially a cover device applied to waterproof audio.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a face shell device applied to waterproof audio, which includes a PCB board, a face shell and a face sheet, the PCB board is installed on the inner wall of the face shell, and the face sheet Installed on the outside of the face shell, the face shell is integrally injection-molded with transparent plastic, on which there are LCD display window area, scattering reflective dot matrix and scattered light hole distribution area.

The PCB board and the inner wall of the face shell are fixed by screwing, and the face sheet and the face shell are fixed by bonding.

An LCD display window is integrally formed on the inner wall of the face shell.

The scattering reflective dot matrix and astigmatism holes are arranged around the LCD display window.

The reflection points of the scattering reflective lattice are spherical convex points.

The PCB board is provided with an inductive key touch line and an LED light source.

The said face sheet is a thin sheet of transparent PC material, the face sheet is provided with a keypad, and characters are printed on the keypad.

There is a groove on the outer surface of the shell, and the dough is pasted in the groove.

Beneficial effects of the present utility model: the inner wall of the face shell of the present utility model is integrally formed with LCD display windows, scattering reflective lattices and astigmatism holes, so that the face shell has waterproof and dustproof characteristics, LCD lens function and face shell backlight astigmatism support function , It also saves the lens and panel backlight light-transmitting bracket and its assembly process; the inductive button touch circuit on the PCB makes the panel have a touch button function, and at the same time saves the silicone waterproof button and its Assembly process; the PCB board is installed on the inner wall of the panel, and the panel is installed on the outside of the panel, which greatly shortens the distance between the PCB board and the panel, improves the sensitivity of the key touch, and improves the environmental adaptability.

Description of drawings

Fig. 1 is the sectional structure schematic diagram of prior art one of the utility model.

Fig. 2 is the sectional structure schematic diagram of prior art two of the utility model.

Fig. 3 is the exploded schematic view of the three-dimensional structure of the utility model.

Fig. 4 is the sectional structure schematic diagram of the utility model.

Description of drawings: PCB board 01, astigmatism body 02, face shell 03, silicone button 04, lens 05, double-sided adhesive tape 06, PCB board 21, astigmatism body 22, face shell 23, double-sided adhesive tape 24, lens 25, face Sheet 1, keypad 101, face shell 2, LCD display window 201, light-scattering dot matrix 202, light-scattering hole 203, PCB board 3, inductive key touch line 301, LED light source 302.

Detailed ways

A face shell device applied to waterproof audio, which includes a PCB board 3, a face shell 2 and a face sheet 1, wherein the face shell 2 is a transparent sealing body, and the PCB board 3 is screwed and fixedly installed on the inner wall of the face shell 2, The PCB board 3 is equipped with an inductive button touch line 301 and an LED light source 302; the outer surface of the face shell 2 is bonded and fixedly installed with the face sheet 1, and the face shell 2 is integrally injection-molded with transparent plastic, and an LCD display window is provided on the inner wall 201. Scattering reflective dot matrix 202 and light scattering holes 203. The light scattering reflective dot matrix 202 and light scattering holes 203 can evenly diverge the light emitted by the LED, so that the backlight of each button area and the area that needs to be backlit on the surface sheet 1 can be evenly diverged. Moreover, the number and distribution of LEDs on the astigmatism hole 203 and the PCB board 3 can be flexibly configured according to the area distribution of the surface shell 2 that needs to be illuminated, and the minimum number of LEDs can be used to meet the power saving and environmental protection of the entire surface shell 2 backlight design. Requirements, since the reflection points of the scattering reflective lattice 202 are spherical convex points, the uniformity and intensity of the local reflected light on the surface sheet 1 can be adjusted by changing the spherical curvature, the size of the sphere, and the distribution quantity per unit area to meet the needs of different products. Outline design and the design intent of the local strong/weak backlight of the face shell; the face shell 2 has waterproof, LCD display window 201 lens function and the function of the astigmatism body of the face shell backlight system at the same time, eliminating the LCD lens, lens sticking and Waterproof process, save the key and its key waterproof process, save the astigmatism body parts and assembly process in the prior art, save the thickness of the astigmatism body, make the key touch area away from the touch circuit on the PCB board 3 The distance is closer, which improves the sensitivity of the key touch and strengthens the environmental adaptability of the device; the surface sheet 1 is a transparent thin PC material sheet, and its front has a matte texture effect, and the back has a high gloss effect plus silk screen printing. There is a keypad 101 on which characters are printed.

Claims (8)

1. face-piece device that is applied to the waterproof sound equipment, it comprises pcb board, face-piece and dough sheet, it is characterized in that: described pcb board is installed in the face-piece inwall, described dough sheet is installed on the face-piece outside, face-piece adopts the transparent plastic integrated injection molding, which is provided with LCD display window zone, the reflective dot matrix of scattering and distributed areas, astigmatic cave.

2. a kind of face-piece device that is applied to the waterproof sound equipment according to claim 1, it is characterized in that: described pcb board and face-piece inwall are fixing by being spirally connected, and described dough sheet and face-piece are fixing by bonding.

3. a kind of face-piece device that is applied to the waterproof sound equipment according to claim 1 is characterized in that: the one-body molded LCD of having display window on the described face-piece inwall.

4. a kind of face-piece device that is applied to the waterproof sound equipment according to claim 1, it is characterized in that: the reflective dot matrix of described scattering and astigmatic cave are arranged on around the LCD display window.

5. a kind of face-piece device that is applied to the waterproof sound equipment according to claim 1, it is characterized in that: the pip of the reflective dot matrix of described scattering is spherical salient point.

6. a kind of face-piece device that is applied to the waterproof sound equipment according to claim 1, it is characterized in that: described pcb board is provided with induction type button touch control line and led light source.

7. a kind of face-piece device that is applied to the waterproof sound equipment according to claim 1, it is characterized in that: described dough sheet is transparent PC material thin slice, and dough sheet is provided with key zone, is printed with character on the key zone.

8. a kind of face-piece device that is applied to the waterproof sound equipment according to claim 1, it is characterized in that: described face-piece lateral surface is provided with groove, and dough sheet is pasted in the groove.

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