JPH0679355U - Anti-fog double layer mirror with heater - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an anti-fog mirror in which a current-carrying heater is adhesively fixed to the back surface, and in which the heater and the back surface of the mirror are kept dry when used. . [Structure] A mirror having an electrically conductive heater adhered and fixed to the back surface thereof, a flat plate member arranged to face the back surface of the mirror at a predetermined distance from the back surface of the mirror, and extending along a peripheral edge of the mirror. A multi-layer structure comprising a spacer enclosing a desiccant sandwiched between the peripheral portion of the mirror and the peripheral portion of the flat plate member, the flat plate member being made of a moisture impermeable material, and comprising the mirror, the spacer and the flat plate member. The periphery of the object is sealed with an adhesive.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an anti-fog mirror with an electric heater bonded and fixed to the back surface.

[0002]

[Prior art]

 In the case of an anti-fog mirror with an electric heater bonded and fixed to the back side, conventionally, it was installed in a bathroom, washroom, etc. simply by surrounding the mirror with a plywood board, etc. Had been used.

[0003]

[Problems to be solved by the device]

 In the case of conventional anti-fog mirrors that were installed and used in bathrooms, washrooms, etc. simply by surrounding the mirror with a veneer, etc., when using it, the adhesive part between the heater and the back of the mirror has high humidity. There was a problem that the heater was peeled off from the back surface of the mirror when exposed to the surrounding environment. The present invention has been made in view of the above problems, and is an anti-fog mirror in which a current-carrying heater is adhesively fixed to the back surface, and the adhesive portion between the heater and the mirror back surface is kept in a dry state during use. The purpose is to provide an anti-fog mirror.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, in the present invention, a mirror having a back surface to which an electric heater is attached and fixed, and a flat plate member arranged to face the back surface of the mirror at a predetermined distance from the back surface of the mirror. And a spacer extending along the peripheral edge of the mirror and containing a desiccant sandwiched between the peripheral edge of the mirror and the peripheral edge of the flat plate member, the flat plate member being made of a moisture impermeable material, The periphery of the multilayer structure composed of the mirror, the spacer and the flat plate member is sealed with an adhesive to provide an anti-fog multilayer mirror with a heater. In a preferred aspect of the present invention, the heater has a conductive heating element and a heat radiating plate which is separate from the heating element. In another preferred aspect of the present invention, the heater has a conductive film that also serves as a heating element and a heat dissipation plate. In still another preferred embodiment of the present invention, the adhesive is a rubber-based adhesive.

[0005]

[Action]

 In the present invention, the heater is housed inside the multi-layer structure composed of the mirror, the spacer and the flat plate member, and the periphery of the multi-layer structure is sealed with an adhesive, so that the heater and The bonding part with the back surface of the mirror is shielded from the external environment. Further, since the flat plate member is made of a moisture impermeable material, and the spacer encloses the desiccant, the inner space of the multi-layer structure is kept in a dry state, and by extension, the bonding portion between the heater and the back surface of the mirror is Keeps dry when using anti-fog mirrors.

[0006]

【Example】

 An anti-fog double layer mirror with a heater according to a first embodiment of the present invention will be described with reference to FIGS. An electrically conductive sheet-shaped heater 2 is bonded and fixed to the back surface of the mirror 1. The heater 2 has a heating element 2a and a heat radiating plate 2b which is separate from the heating element 2a. Since the sheet-shaped heater having the above structure is widely provided on the market, detailed description of the heater 2 will be omitted. A flat plate member 3 is arranged facing the back surface of the mirror 1 at a predetermined distance from the back surface of the mirror 1. The flat plate member 3 may be made of any material as long as it is impermeable to moisture. For example, it may be metal, glass, or plastic. A spacer 4 having a closed cross-sectional shape extending along the peripheral edge of the mirror 1 is sandwiched between the peripheral edge of the mirror 1 and the peripheral edge of the flat plate member 3. The spacer 4 contains a desiccant 5. A slit 4 a is formed on the inner wall of the spacer 4. The periphery of the multi-layer structure constituted by the mirror 1, the spacer and the flat plate member 3 is sealed with an adhesive 6. An electric wire cord 7 for energizing the heating element 2a extends through the spacer 4 and the adhesive 6 to the outside of the multilayer structure.

In the anti-fog multi-layer mirror with a heater according to this embodiment having the above structure, the heater 2 is housed inside the multi-layer structure composed of the mirror 1, the spacer 4 and the flat plate member 3. Since the peripheral edge of the multi-layer structure is sealed with the adhesive 6, the bonded portion between the heater 2 and the back surface of the mirror 1 is shielded from the external environment. Further, since the flat plate member 3 is made of a material that does not allow moisture to pass through, and the spacer 4 contains the desiccant 5, the inner space of the multi-layer structure is kept in a dry state, and by extension, the heater 2 and the back surface of the mirror 1 are The adhesive part of the is kept dry when the anti-fog double-layer mirror is used. Therefore, in the heater-equipped anti-fog double-layer mirror according to the present embodiment, even when used in a high humidity environment, there is no fear that the heater will come off from the rear surface of the mirror.

A heater-equipped anti-fog multilayer mirror according to a second embodiment of the present invention will be described with reference to FIGS. 3 and 4, the same members as those of the heater-equipped antifogging multilayer mirror according to the first embodiment are denoted by the same reference numerals as those in FIGS. In this embodiment, the heater 20 has a conductive film 20a that also serves as a heating element and a heat dissipation plate. Electrodes 20b are formed by applying conductive paint to both ends of the conductive film 20a. A wire cord 7 is soldered to the electrode 20b. A film heater having the above structure is also commercially available. Except for the above, the heater-equipped anti-fog multilayer mirror according to the present embodiment has the same configuration as the heater-equipped anti-fog multilayer mirror according to the first embodiment.

Even with the heater-equipped anti-fog multilayer mirror according to the present embodiment, as in the case of the first embodiment, the bonding portion between the heater 20 and the back surface of the mirror 1 is the same when the heater-equipped anti-fog multilayer mirror is used. Keeps dry. Since the heater 20 composed of the conductive film 20a is thinner than the heater 2 of the first embodiment, according to this embodiment, the spacer 4 can be thinner than that of the first embodiment. As a result, the weight of the heater-equipped anti-fog multilayer mirror can be made lighter than that of the first embodiment.

The adhesive 6 is preferably elastic such as rubber. When the air in the multi-layer structure is heated and expanded by the operation of the heater 2, the elastic deformation of the adhesive 6 suppresses the deformation of the mirror 1 and thus prevents the damage of the mirror 1.

[0011]

【effect】

 As described above, in the present invention, the heater is housed inside the multi-layer structure composed of the mirror, the spacer and the flat plate member, and the peripheral edge of the multi-layer structure is sealed with the adhesive. Therefore, the joint between the heater and the back of the mirror is shielded from the external environment. Further, since the flat plate member is made of a moisture impermeable material, and the spacer contains a desiccant, the inner space of the multi-layer structure is kept in a dry state, and by extension, the bonding portion between the heater and the mirror rear surface is protected. Keeps dry when using a cloudy mirror. Therefore, according to the present invention, there is no possibility that the heater is peeled off from the back surface of the mirror during use of the anti-fog mirror.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an anti-fog double-layer mirror with a heater according to a first embodiment of the present invention.

FIG. 2 is a view taken along the line II-II of FIG.

FIG. 3 is a cross-sectional view of an anti-fog double layer mirror with a heater according to a second embodiment of the present invention.

FIG. 4 is a view taken along the line IV-IV in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mirror 2 Heater 2a Heating element 2b Radiating plate 3 Flat plate member 4 Spacer 5 Drying agent 6 Adhesive 7 Wire cord 20 Heater 20a Conductive film 20b Electrode

Claims (4)

[Scope of utility model registration request] 1. A mirror having a back surface to which an electric heater is adhered and fixed, a flat plate member disposed facing the back surface of the mirror at a predetermined distance from the back surface of the mirror, and extending along a peripheral edge of the mirror. A spacer containing a desiccant sandwiched between the peripheral portion of the mirror and the peripheral portion of the flat plate member, and the flat plate member is made of a moisture impermeable material, and is composed of the mirror, the spacer and the flat plate member. An anti-fog double-layer mirror with a heater, characterized in that the periphery of the layer structure is sealed with an adhesive. 2. The anti-fog double layer mirror with a heater according to claim 1, wherein the heater has a heating element and a heat radiating plate separate from the heating element. 3. The anti-fogging multilayer mirror with a heater according to claim 1, wherein the heater has a conductive film that also serves as a heating element and a heat radiating plate. 4. The anti-fog double layer mirror with a heater according to claim 1, wherein the adhesive is a rubber-based adhesive.