JP2016189438A - Housing structure having tightly sealing function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a housing structure in which a possibility that airtightness is impaired is small even when shape deformation such as deformation due to external force and warp generated during molding occurs on the surface of a case.SOLUTION: A housing structure includes a tightly sealing function comprising: an upper tightly-sealed packing 4 which is retained in an upper case 2 and has a recessed fitting groove 40; and a lower tightly-sealed packing 5 which is retained in a lower case 3 fitted to the upper case 2 and to which a protrusive fitting rib 50 fitted to the recessed fitting groove 40 is integrally molded or adhered.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a housing structure having a sealing function.

  As a housing structure composed of a plurality of housing parts in a device having a sealing function (for example, a waterproof interphone installed in a bathroom), for example, the upper housing surface and the upper housing surface of the fitting portion of the lower housing A structure in which the surface of the lower housing is pressure-bonded with a sealing packing interposed therebetween (for example, Patent Document 1).

  However, in a general structure as described in Patent Document 1, since the surface and the surface of the portion where the upper housing and the lower housing are fitted are crimped with the sealing packing interposed therebetween, the surface of each housing When the deformation occurs, the pressure applied by the sealing packing is not uniform, and there is a possibility that the sealing performance, that is, the waterproofness and the airtightness may be impaired.

JP 2013-175490 A

  Therefore, an object of the present invention is to provide a housing structure that is less likely to impair the sealing performance even when the surface of the housing is deformed.

  In order to solve the above problems, the present invention provides a first sealing packing having a concave fitting groove held in a first casing, and a second casing that fits the first casing. And a second sealing packing in which a convex fitting rib that is held and fitted with the concave fitting groove is integrally formed or bonded.

  According to the present invention, the end of the upper casing and the end of the lower casing where the upper casing and the lower casing are fitted are crimped in the vertical direction with the sealing packing interposed therebetween. Even when the surface is deformed, the vertical deformation of the end of the upper housing and the end of the lower housing is small. Therefore, the effect on the uniformity of the pressure applied by the sealing packing, which is crimped in the vertical direction at the end of the upper casing and the end of the lower casing, is small, and the casing surface is deformed. Even if it exists, the housing | casing structure with a small possibility of impairing sealing performance can be provided.

1 is an exploded view showing a configuration of a waterproof device according to an embodiment of the present invention. 1 is a perspective view showing a waterproof device according to an embodiment of the present invention. 2 is a cross-sectional view taken along line AA in FIG. 2 showing the pressure bonding of the sealing packing.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings, taking a waterproof device as an example of a housing structure having a sealing function. However, the following description is merely an example of the present invention, and the technical scope of the invention is not limited by the following description.

  FIG. 1 is an exploded view showing a configuration of a waterproof device 1 according to an embodiment of the present invention. As illustrated, the waterproof device 1 includes an upper case 2, a lower case 3, a sealing packing upper 4, and a sealing packing lower 5.

  The waterproof device 1 is a waterproof case that houses a non-waterproof wireless communication component mounted on its own device.

  On the sealing packing 4, a concave fitting groove is provided on the entire circumference. The lower seal packing 5 is provided with convex fitting ribs all around. The fitting groove on the top 4 of the sealing packing and the fitting rib on the bottom 5 of the sealing packing are fitted to each other to provide a sealing property.

  The sealing packing top 4 is formed of soft silicon rubber.

  Since the sealing packing top 4 is applicable to any soft material having waterproof performance, it is not limited to silicon rubber, and for example, a thermoplastic elastomer may be used.

  The hard convex fitting ribs under the sealing packing 5 are integrally formed with or bonded to the sealing packing 5.

  The lower seal packing 5 is formed of a thermoplastic elastomer having waterproof performance.

  The sealing packing lower 5 is applicable to any material having waterproof performance, and is not limited to the thermoplastic elastomer, but may be rubber or silicon, for example.

  The upper seal packing 4 corresponds to the first seal packing in the claims. The lower seal packing 5 corresponds to the second seal packing in the claims.

  The upper case 2 and the lower case 3 are housings that hold the upper seal packing 4 and the lower seal packing 5 and constitute the exterior of the waterproof device 1. The upper case 2 corresponds to a first housing in the claims. The lower case 3 corresponds to a second casing in the claims.

  FIG. 2 is a perspective view showing the waterproof device 1 according to the embodiment of the present invention.

  As shown in the figure, the waterproof device 1 constitutes a casing of an upper case 2 and a lower case 3 as an exterior. A line A-A in the figure indicates a line break position in a cross-sectional view of FIG. 3 to be described later.

  FIG. 3 is a cross-sectional view taken along line AA of FIG. 2 showing crimping of the sealing packing.

  As shown in the drawing, the upper case 2 is provided with a sealing packing upper accommodating portion 20 and an upper case end portion 21. The lower case 3 is provided with a lower case end 30.

  The sealing packing top 4 is provided with a fitting groove 40. The lower sealing packing 5 is provided with a fitting rib 50.

  The upper seal packing 4 and the upper seal packing accommodating portion 20 are fitted, the fitting groove 40 and the fitting rib 50 are fitted, and the upper case end 21 and the lower case end 30 are crimped to the lower seal packing 5. And airtight.

  The embodiment of the present invention has been described above.

  According to an embodiment of the present invention, the waterproof device 1 is held by the upper case 2 and held by the upper case 2 having a concave fitting groove 40 and the lower case 3 fitted to the upper case 2. A sealing packing lower 5 is integrally formed or bonded to the concave fitting groove 40 and a convex fitting rib 50 to be fitted.

  As a result, the end of the upper case and the end of the lower case where the upper case and the lower case are fitted are crimped in the vertical direction with the sealing packing sandwiched between them. Even if it exists, the deformation | transformation of the up-down direction of the edge part of an upper case and the edge part of a lower case is small. Therefore, even if the case surface is deformed, there is little influence on the uniformity of the pressure applied by the sealing packing that is crimped in the vertical direction at the end of the upper case and the end of the lower case. Further, it is possible to provide a housing structure that is less likely to impair the sealing performance.

  In addition, in one Embodiment of this invention, although the waterproof apparatus was demonstrated to the example as a housing | casing structure which has a sealing function, this application is not limited to this. For example, it may be a dustproof device that requires a sealing function.

DESCRIPTION OF SYMBOLS 1 ... Waterproof device, 2 ... Upper case, 3 ... Lower case, 4 ... Sealing packing top, 5 ... Sealing packing bottom, 20 ... Sealing packing upper accommodating part, 21 ... Upper case edge part, 30 ... Lower case edge part, 40 ... Fitting groove, 50 ... Fitting rib

Claims (1)

A first sealing packing held in the first housing and having a concave fitting groove;
A second hermetic packing in which a convex fitting rib that is held in a second casing that fits with the first casing and that fits with the concave fitting groove is integrally formed or bonded;
A housing structure having a sealing function characterized by comprising:

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