High-Water Pressure Waterproof Microspeaker

Abstract

A waterproof speaker having a waterproof rating of 8 or more and that is capable of providing a waterproof function at a high water pressure is provided. The waterproof microspeaker includes: a frame comprising a sidewall and a flange portion extending outward from an upper edge of the sidewall; a vibrating portion within the frame; a diaphragm mounted on the flange portion of the frame; and a waterproof ring placed on a sidewall of the frame and configured to protrude further outward than the flange portion of the frame.

Claims

1. A high-water pressure waterproof microspeaker, comprising: a frame comprising a sidewall and a flange portion extending outward from an upper edge of the sidewall; a vibrating portion within the frame; a diaphragm mounted on the flange portion of the frame; and a waterproof ring placed on a sidewall of the frame and configured to protrude further outward than the flange portion of the frame.

2. The high-water pressure waterproof microspeaker of claim 1, wherein the frame is made from either steel material or injection-molding material.

3. The high-water pressure waterproof microspeaker of claim 1, wherein the diaphragm comprises: a center portion positioned at a center of the diaphragm; a ring-shaped dome portion formed around the center portion and protruding upward or downward; and a seating portion formed outside of the ring-shaped dome portion and seated on the frame.

4. The high-water pressure waterproof microspeaker of claim 3, wherein the seating portion comprises: a first seating portion seated on an inner surface of the sidewall of the frame; and a second seating portion seated on an upper surface of the flange portion of the frame.

5. The high-water pressure waterproof microspeaker of claim 1, wherein the waterproof ring comprises an injection-molded liquid silicone rubber.

6. The high-water pressure waterproof microspeaker of claim 1, wherein the waterproof ring is a cured-in-place gasket.

7. The high-water pressure waterproof microspeaker of claim 1, further comprising an adhesive applied to the flange portion of the frame, wherein the adhesive has an adhesive force by means of heat and pressure, and wherein the diaphragm and the flange portion of the frame are bonded together by means of heat and pressure.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG. 1 is a view showing a waterproof microspeaker according to the conventional art.

[0016] FIG. 2 is a view showing a high-water pressure waterproof microspeaker according to an exemplary embodiment of the present invention.

[0017] FIG. 3 is a view showing how a high-water pressure waterproof microspeaker according to an exemplary embodiment of the present invention is fitted into a device.

DETAILED DESCRIPTION

[0018] Hereinafter, the present invention will be described in more details with reference to the drawings.

[0019] FIG. 2 is a view showing a high-water pressure waterproof microspeaker according to an exemplary embodiment of the present invention.

[0020] A high-water pressure waterproof microspeaker according to an exemplary embodiment of the present invention comprises a frame 100 and a vibrating portion within the frame 100, and the vibrating portion comprises a diaphragm 200 and a vibrating member that vibrates the diaphragm 200. The vibrating member may be a voice coil (not shown) and a magnetic circuit (not shown) which are generally used, or may be a piezoelectric element attached to the diaphragm 200.

[0021] The frame 100 comprises a sidewall 110 and a flange portion 120 extending outward from the upper edge of the sidewall 110. The aforementioned vibrating portion is placed within a space defined by the sidewall 110. The frame 100 may be made of either steel material or injection-molding material.

[0022] The diaphragm 200 comprises a center portion 210 positioned at the center, a ring-shaped dome portion 220 formed around the center portion 210 and protruding upward or downward, and a seating portion 232 and 234 formed outside of the dome portion 220 and seated on the frame 100.

[0023] The seating portion 232 and 234 comprises a first seating portion 232 seated on an inner surface of the sidewall 110 of the frame 100 and a second seating portion 234 seated on an upper surface of the flange portion 120 of the frame 100. An adhesive which has an adhesive force by means of heat and pressure is applied to the flange portion 120 of the frame 100. In the assembling process, the diaphragm 200 may be mounted on the frame 100, and then the flange portion 120 of the frame 100 and the second seating portion 234 of the diaphragm 200 may be bonded together by the application of heat and pressure.

[0024] The diaphragm 200 may be made of an elastomer material with elasticity, which, therefore, may return to its original configuration even if it is deformed by high water pressure applied from the outside.

[0025] Meanwhile, a waterproof ring 300 configured to protrude further outward than the flange portion 120 of the frame 100 is placed on an outer surface of the sidewall 110 of the frame 100.

[0026] The waterproof ring 300 is formed by injection-molding a liquid silicone rubber or by CI PG (cured-in-place gasket).

[0027] FIG. 3 is a view showing how a high-water pressure waterproof microspeaker according to an exemplary embodiment of the present invention is fitted into a device.

[0028] The waterproof ring 300 provides water tightness when fitted to a device A, because the waterproof ring 300 is made of a material with elasticity such as liquid silicone rubber and also the waterproof ring 300 is compressed when assembled thanks to its outer rim being larger than a microspeaker installation space in the device A. Accordingly, when water enters from above as shown in the figure, the watertight seal between the diaphragm 200 and the frame 100 and the watertight seal between the waterproof ring 300 and the device A are maintained, thereby ensuring waterproofing.

[0029] Since the high-water pressure waterproof speaker provided in the present invention is compressed when assembled to the electronic device A by means of the waterproof ring 300 placed outside of the frame 100, it has advantages such as being easy to prevent foreign materials from entering and eliminating any possibility of waterproofing failure depending on the amount of compression of waterproof tape, as compared to a conventional structure using waterproof tape.

[0030] Another advantage of the high-water pressure waterproof speaker provided in the present invention is that the frame 100 and the diaphragm 200 are bonded with heat and pressure, rather than being attached with the application of glue, which allows the frame 100 and the diaphragm 200 to be uniformly bonded, thereby reducing waterproofing failure.

[0031] Although specific embodiments have been illustrated and described herein, it will be appreciated by those of ordinary skill in the art that a variety of alternate and/or equivalent implementations may be substituted for the specific embodiments shown and described without departing from the scope of the present invention. This application is intended to cover any adaptations or variations of the specific embodiments discussed herein. Therefore, it is intended that this invention be limited only by the claims and the equivalents thereof.