Electronic apparatus

Abstract

To provide an electronic apparatus that is small-sized and can prevent entry of liquid through a gap between joining parts of cover members.SOLUTION: An electronic apparatus has: a first cover member and a second cover member that are arranged in order from an external side to an internal side, and each have a rugged joining part including first to third joining faces; a third cover member that covers part of the joining parts; and a waterproof member that is arranged between the third joining faces. In an area covered by the third cover member, the first joining face of the first cover member and the second joining face of the second cover member, and one of the first joining face and the second joining face of the second cover member have a water-repellent, waterproof structure subjected to water-repellent processing with a fine processing shape. In the area covered by the third cover member, the first cover member has a groove part near the water-repellent, waterproof structure. A first end of the groove part is connected with the second joining face of the first cover member, and a second end is connected with an end face of the third cover member.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to an electronic device having a cover member with a waterproof structure. [Background technology]

[0002] In recent years, there has been a demand for small portable electronic devices with high waterproof performance that can be used in the rain or near water. Patent Document 1 discloses a configuration in which a water-repellent coating is formed on opposing end faces in order to prevent the size of the device from increasing. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5218652 Summary of the Invention [Problem to be solved by the invention]

[0004] However, even if the configuration of Patent Document 1 is applied to an apparatus having a plurality of cover members that have a complex shape and are combined in a complex manner, water may enter the apparatus. FIG. 8(a) is a perspective view of a housing 1000 having a conventional waterproof structure. FIG. 8(b) is a perspective view of a first cover member 1001. FIG. 8(c) is a cross section taken along line ZZ in FIG. 8(a). The first cover member 1001 and the second cover member 1002 have a waterproof structure at the joint. In the case of a configuration in which the joint is covered with the third cover member 1003, the waterproof structure surfaces 1001a, 1001b, and 1001c of the first cover member 1001 are not formed as the same surface without steps due to various constraints. In the case of such a configuration, water may flow from the space 1005 inside the third cover member 1003 outside the waterproof member 1004 of the first cover member 1001 and the second cover member 1002 and enter through the step of the waterproof structure surface.

[0005] An object of the present invention is to provide a small electronic device that is capable of preventing the infiltration of liquid through gaps in the joints of the cover members. [Means for solving the problem]

[0006] An electronic device as one aspect of the present invention has a first cover member and a second cover member having an uneven mating portion including a first mating surface, a second mating surface, and a third mating surface arranged in order from the exterior side to the interior side, a third cover member covering part of the mating portion, and a waterproof member arranged between the third mating surfaces, and in an area covered by the third cover member, one of the first mating surface of the first cover member and the second mating surface of the second cover member and the first mating surface of the second cover member and the second mating surface of the second cover member has a water-repellent waterproof structure that has been subjected to a water-repellent treatment using a micro-machined shape, and the first cover member has a groove portion near the water-repellent waterproof structure in the area covered by the third cover member, and a first end of the groove portion is connected to the second mating surface of the first cover member and a second end is connected to an end face of the third cover member. Effect of the Invention

[0007] According to the present invention, it is possible to provide a small-sized electronic device that is capable of preventing the infiltration of liquid through gaps in the joints of the cover members. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing a housing of an imaging device which is an example of a portable electronic device; [Diagram 2] FIG. 1 is an explanatory diagram of a water-repellent and waterproof structure according to a first embodiment. [Diagram 3] FIG. 1 is an enlarged image of the surface of a resin part having a micromachined shape. [Figure 4] FIG. [Diagram 5] FIG. 6 is an explanatory diagram of a water-repellent and waterproof structure according to a second embodiment. [Figure 6] 11 is an explanatory diagram of a water-repellent and waterproof structure according to a third embodiment. FIG. [Figure 7] FIG. 13 is an explanatory diagram of a water-repellent and waterproof structure according to a fourth embodiment. [Figure 8]FIG. 1 is a diagram showing a conventional waterproof structure; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to refer to the same components, and duplicated descriptions will be omitted. [First embodiment] Fig. 1 is a diagram showing a housing 100 of an imaging device, which is an example of a portable electronic device, that includes an imaging element that receives an image formed by an optical system. Fig. 1(a) and Fig. 1(b) are a rear perspective view and an exploded perspective view of the housing 100, respectively. The housing 100 has a bottom cover member 1 (hereinafter, first cover member), a rear cover member 2 (hereinafter, second cover member), and a grip member 3 (hereinafter, third cover member). Note that the front cover member is omitted in Fig. 1.

[0010] The first cover member 1 and the second cover member 2 have a waterproof structure at the joint, and a waterproof member (not shown) is sandwiched between them to block the path of water ingress. The third cover member 3 straddles the joint between the first cover member 1 and the second cover member 2, and is bonded and fixed to the first cover member 1 and the second cover member 2 with double-sided tape or adhesive. Note that the third cover member 3 does not cover the entire joint between the first cover member 1 and the second cover member 2. Of the joint, the area covered by the third cover member 3 is referred to as the first area X1, and the area not covered by the third cover member 3 is referred to as the second area X2.

[0011] The three cover members are exterior members, and the exterior surface of each cover member is painted or textured. The third cover member 3 is an elastic member such as rubber, and by placing it on the first cover member 1 and the second cover member 2, it is possible to improve the ease of holding when the user holds it.

[0012] FIG. 2 is an explanatory diagram of the water-repellent waterproof structure of this embodiment. FIG. 2(a) is a cross-sectional view of line AA in FIG. 1(a), and FIG. 2(b) is a perspective view of the first cover member 1 in the first region X1. The mating portion of the first cover member 1 includes a first mating surface 1A, a second mating surface 1B, and a third mating surface 1C arranged in order from the exterior side (exterior side) to the interior side, and is configured in an uneven shape. The mating portion of the second cover member 1 includes a first mating surface 2A, a second mating surface 2B, and a third mating surface 2C arranged in order from the exterior side to the interior side, and is configured in an uneven shape. The first mating surfaces 1A and 2A, the second mating surfaces 1B and 2B, and the third mating surfaces 1C and 2C face each other with a predetermined clearance formed therebetween.

[0013] The waterproof member 4 is disposed between the third mating surfaces 1C, 2C. The waterproof member 4 is an elastic member such as rubber or cushion, and is adhesively fixed to one of the mating surfaces of the first cover member 1 and the second cover member 2. An interference portion is provided on the other of the mating surfaces of the first cover member 1 and the second cover member 2 to prevent liquid from entering. Note that the waterproof member 4 is not limited to an elastic member, and may be other members or treatments having a waterproof function.

[0014] The groove 6 is provided in the first region X1, and when the third cover member 3 is adhesively fixed, it is covered by the third cover member 3 and becomes invisible from the outside. The first end of the groove 6 is connected to the second mating surface 1B of the first cover member 1, and the second end is connected to the opening 3A of the third cover member 3. In this embodiment, the first end of the groove 6 is a surface continuous with the second mating surface 1B, but may be a step as long as it is connected to the space formed by the mating surfaces of the first cover member 1 and the second cover member 2. In this embodiment, the second end of the groove 6 is connected to the opening 3A of the third cover member 3, but it may be connected to the end of the third cover member 3.

[0015] The strap member 7 is held by the first cover member 1 and fixed so as to be exposed to the outside through the opening 3A.

[0016] Figure 3 is an enlarged image of the surface of a resin part that has been molded using a mold in which a micromachined shape has been applied to the surface by irradiation with a femtosecond laser, and that has been applied (transferred) to the micromachined shape. It is known that the contact angle of a liquid droplet on a surface that has been applied with a micromachined shape is larger than the contact angle on a surface that has not been applied with a micromachined shape, and that this surface has a water-repellent effect (has a water-repellent function). Note that the micromachined shape in Figure 3 is a convex shape that is periodically arranged with a pitch of about 40 micrometers, but is not limited to this shape, and other shapes may be used as long as the water-repellent effect is imparted.

[0017] In this embodiment, at least a part of the first mating surfaces 1A, 2A and the second mating surfaces 1B, 2B is treated with a water-repellent shape (treated with water-repellent treatment), and the part treated with water-repellent treatment is called a water-repellent treatment part (water-repellent waterproof structure) 5. In this embodiment, the water-repellent treatment part 5 is applied in the first region X1 near the groove part 6, and the groove part 6 is located between the water-repellent treatment part 5 and the second region X2. With this configuration, when liquid infiltrating from the gap between the first mating surfaces 1A, 2A in the second region X2 flows up to the first region X1 and reaches the water-repellent treatment part 5, it is possible to suppress water from entering the gap between the mating surfaces beyond the water-repellent treatment part 5. In addition, the liquid stopped by the water-repellent treatment part 5 flows down the nearby groove part 6 and is discharged from the opening part 3A. Similarly, the liquid infiltrating from the opening part 3A passes through the groove part 6 and is discharged from the gap between the first mating surfaces 1A, 2A in the second region X2. Therefore, by subjecting a partial area of ​​the mating surfaces of the first cover member 1 and the second cover member 2 to a water-repellent treatment, it is possible to prevent water from entering the inside of the housing 100.

[0018] In this embodiment, the first cover member 1 and the second cover member 2 are molded parts using a mold, and the microfabricated shape for the water-repellent treatment is applied to the mold in advance. As a result, the microfabricated shape having the water-repellent function is transferred from the mold to the desired surface and formed at the same time as the first cover member 1 and the second cover member 2 are molded.

[0019] In order to apply the water-repellent treatment to at least one of the opposing surfaces in the water-repellent treatment part 5, it is preferable that at least one of the first cover member 1 and the second cover member 2 is made of a resin material to which the microfabrication from the mold can be easily transferred. As a result, the microfabrication shape is formed by being transferred from the mold, and therefore it becomes possible to apply the water-repellent treatment more easily than a method of secondarily applying a water-repellent coating or the like to a part.

[0020] The following describes a combination of water-repellent treatments applied to the mating surfaces of the first cover member 1 and the second cover member 2. The paths along which liquid flows from the gaps between the mating surfaces of the first cover member 1 and the second cover member 2 and the waterproof member 4 include the gaps between the first mating surfaces 1A and 2A, the gaps between the second mating surfaces 1B and 2B, and the gap between the second mating surface 2B and the waterproof member 4. When applying water-repellent treatment to prevent water from entering through these gaps, it is sufficient to apply water-repellent treatment to at least one of the opposing surfaces. However, since the fine processing shape is formed by transferring it from a mold, there are restrictions on the surfaces that can be treated with water-repellent treatment. For example, in order to form a fine processing shape in a valley-shaped area such as the first mating surface 1A and the second mating surface 1B, the first mating surface 1A and the second mating surface 1B require a structure in which the mold opens in the direction P in FIG. 2(a) and a structure in which the mold opens in the direction S in FIG. 2(a), respectively. Since it is difficult to fabricate such a mold, there are limitations on the combination of surfaces that can be treated with water repellent.

[0021] In this embodiment, in consideration of the above-mentioned constraints of the mold, the first mating surface 1A and the second mating surface 2B are subjected to a water-repellent treatment, or the first mating surface 2A and the second mating surface 2B are subjected to a water-repellent treatment. With this configuration, it is possible to suppress water from entering beyond the water-repellent processing portion 5 in the first region X1, and water can be suppressed from entering the inside of the housing 100. In addition, since it is not necessary to arrange the waterproofing member 4 beyond the water-repellent processing portion 5 in the first region X1, waterproofing can be ensured simply and in a space-saving manner. Note that when the first mating surface 2A and the second mating surface 2B are subjected to a water-repellent treatment, the first mating surface 1A may be subjected to a water-repellent treatment. In addition, when the second mating surface 1B and the first mating surface 2A are subjected to a water-repellent treatment, a gap that can be penetrated by water is left between the waterproofing member 4 and the second mating surface 2B, which is not preferable.

[0022] FIG. 4 is a cross-sectional view of the groove 6 taken along the line AA. The third cover member 3 has a protruding shape 3B facing the groove bottom surface 6A of the groove 6. The gap (distance) between the groove bottom surface 6A and the protruding shape 3B is smaller than the gap between the second mating surfaces 1B and 2B. In this relationship, liquid easily penetrates into the groove 6 due to capillary action, and liquid in the gap between the mating surfaces of the first cover member 1 and the second cover member 2 in the first region X1 is easily discharged from the opening 3A. In addition, by providing an inclined portion on at least one of the protruding shape 3B and the groove bottom surface 6A, the liquid can be guided to the side with the narrower gap. For example, if an inclined portion is provided so that the gap between the protruding shape 3B and the groove bottom surface 6A narrows toward the opening 3A, the liquid easily moves inside the groove 6 toward the opening 3A. In addition, by subjecting the groove bottom surface 6A and the second mating surface 1B continuous with the groove bottom surface 6A to a hydrophilic treatment, liquid in the gap between the mating surfaces of the first cover member 1 and the second cover member 2 in the first region X1 can be easily discharged through the opening 3A. [Second embodiment] In this embodiment, a water-repellent waterproof structure having a different configuration from that of the first embodiment will be described. In this embodiment, only the configuration different from that of the first embodiment will be described, and the same reference numerals will be used for the common configuration, and the description will be omitted.

[0023] FIG. 5 is an explanatory diagram of the water-repellent waterproof structure of this embodiment. FIG. 5(a) is a cross-sectional view of line AA in FIG. 1(a), and FIG. 5(b) is a perspective view of the first cover member 1 in the first region X1. The mating portion of the first cover member 1 includes a first mating surface 1A, a second mating surface 1B, and a third mating surface 1C arranged in order from the exterior side (exterior side) to the interior side, and is configured in an uneven shape. The mating portion of the second cover member 1 includes a first mating surface 2A, a second mating surface 2B, and a third mating surface 2C arranged in order from the exterior side to the interior side, and is configured in an uneven shape. The first mating surfaces 1A and 2A, the second mating surfaces 1B and 2B, and the third mating surfaces 1C and 2C face each other with a predetermined clearance formed therebetween.

[0024] The waterproof member 4 is disposed between the second mating surfaces 1B, 2B. The waterproof member 4 is adhesively fixed to one of the mating surfaces of the first cover member 1 and the second cover member 2. In addition, an interference portion is provided on the other of the mating surfaces of the first cover member 1 and the second cover member 2 to prevent liquid from entering.

[0025] In this embodiment, at least a part of the first mating surfaces 1A, 2A and the second mating surfaces 1B, 2B is treated with a water-repellent shape (treated with water-repellent treatment), and the part treated with water-repellent treatment is called the water-repellent treatment part 5. In this embodiment, the water-repellent treatment part 5 is applied in the first region X1 near the groove part 6, and the groove part 6 is located between the water-repellent treatment part 5 and the second region X2. With this configuration, when liquid infiltrating from the gap between the first mating surfaces 1A, 2A in the second region X2 flows up to the first region X1 and reaches the water-repellent treatment part 5, it is possible to suppress water from entering the gap between the mating surfaces beyond the water-repellent treatment part 5. In addition, the liquid stopped by the water-repellent treatment part 5 flows down the nearby groove part 6 and is discharged from the opening part 3A. Similarly, the liquid infiltrating from the opening part 3A passes through the groove part 6 and is discharged from the gap between the first mating surfaces 1A, 2A in the second region X2. Therefore, by subjecting a partial area of ​​the mating surfaces of the first cover member 1 and the second cover member 2 to a water-repellent treatment, it is possible to prevent water from entering the inside of the housing 100.

[0026] The following describes a combination of water-repellent treatments applied to the mating surfaces of the first cover member 1 and the second cover member 2. The paths along which liquid can flow from the gaps between the mating surfaces of the first cover member 1 and the second cover member 2 and the waterproof member 4 include the gaps between the first mating surfaces 1A and 2A, the gaps between the second mating surfaces 1B and 2B, and the gap between the first mating surface 1A and the waterproof member 4. When applying a water-repellent treatment to prevent water from seeping in through these gaps, it is sufficient to apply the water-repellent treatment to at least one of the opposing surfaces.

[0027] In this embodiment, in consideration of the constraints of the mold, the first mating surface 1A and the second mating surface 2B are subjected to a water-repellent treatment, or the second mating surface 1B and the first mating surface 2A are subjected to a water-repellent treatment. With this configuration, it is possible to suppress water from entering beyond the water-repellent processing portion 5 in the first region X1, and water can be suppressed from entering the inside of the housing 100. In addition, since it is not necessary to arrange the waterproofing member 4 beyond the water-repellent processing portion 5 in the first region X1, waterproofing can be ensured simply and in a space-saving manner. Note that, although it is difficult to perform a water-repellent treatment on the first mating surface 1A and the second mating surface 1B due to the constraints of the mold, the first mating surface 1A and the second mating surface 1B may be subjected to a water-repellent treatment if other methods such as direct processing can be used. In addition, when the first mating surface 2A and the second mating surface 2B are subjected to a water-repellent treatment, it is not preferable because a gap that can be penetrated by water is left between the waterproofing member 4 and the first mating surface 1A. [Third embodiment] In this embodiment, a water-repellent waterproof structure having a different configuration from the first and second embodiments will be described. In this embodiment, only the configuration different from the first and second embodiments will be described, and the same reference numbers will be used for the common configuration, and the description will be omitted.

[0028] FIG. 6 is an explanatory diagram of the water-repellent waterproof structure of this embodiment. FIG. 6(a) is a cross-sectional view of line AA in FIG. 1(a), and FIG. 6(b) is a perspective view of the first cover member 1 in the first region X1. The mating portion of the first cover member 1 includes a first mating surface 1A, a second mating surface 1B, and a third mating surface 1C arranged in order from the exterior side (exterior side) to the interior side, and is configured in an uneven shape. The mating portion of the second cover member 1 includes a first mating surface 2A, a second mating surface 2B, and a third mating surface 2C arranged in order from the exterior side to the interior side, and is configured in an uneven shape. The first mating surfaces 1A and 2A, the second mating surfaces 1B and 2B, and the third mating surfaces 1C and 2C face each other with a predetermined clearance formed therebetween.

[0029] The waterproof member 4 is disposed between the first mating surfaces 1A, 2A. The waterproof member 4 is adhesively fixed to one of the mating surfaces of the first cover member 1 and the second cover member 2. In addition, an interference portion is provided on the other of the mating surfaces of the first cover member 1 and the second cover member 2 to prevent liquid from entering.

[0030] In this embodiment, a water-repellent shape is applied to a part of the first mating surfaces 1A, 2A (water-repellent treatment is applied), and the part to which the water-repellent treatment is applied is the water-repellent treatment portion 5. In this embodiment, the water-repellent treatment portion 5 is applied near the groove portion 6 in the first region X1, and the groove portion 6 is located between the water-repellent treatment portion 5 and the second region X2. In addition, the groove bottom surface 6A of the groove portion 6 is provided near the interference portion of the waterproof member 4 or closer to the third cover member 3 than the waterproof member 4. With this configuration, when liquid that infiltrates from the gap between the first mating surfaces 1A, 2A in the second region X2 flows up to the first region X1 and reaches the water-repellent treatment portion 5, it is possible to suppress the water from entering the gap between the mating surfaces beyond the water-repellent treatment portion 5. In addition, the liquid stopped by the water-repellent treatment portion 5 flows along the nearby groove portion 6 and is discharged from the opening 3A. Similarly, liquid entering through the opening 3A passes through the groove 6 and is discharged from the gap between the first mating surfaces 1A and 2A in the second region X2. Therefore, by applying a water-repellent treatment to a portion of the mating surfaces of the first cover member 1 and the second cover member 2, it is possible to prevent water from entering the housing 100.

[0031] The following describes a combination of water-repellent treatments applied to the mating surfaces of the first cover member 1 and the second cover member 2. The gap between the first mating surfaces 1A and 2A is a path for liquid to flow from the gap between the mating surfaces of the first cover member 1 and the second cover member 2 and the waterproof member 4. When applying a water-repellent treatment to prevent water from entering through this gap, it is sufficient to apply the water-repellent treatment to at least one of the opposing surfaces.

[0032] In this embodiment, in consideration of the constraints of the mold, the first mating surface 1A is subjected to a water-repellent treatment, or the first mating surface 2A is subjected to a water-repellent treatment. With such a configuration, it is possible to prevent water from entering beyond the water-repellent treatment portion 5 in the first region X1, and thus to prevent water from entering the inside of the housing 100. [Fourth embodiment] In this embodiment, a case will be described in which not only the water-repellent treatment is performed on the water-repellent portion 5, but also a fine treatment is performed on the waterproof member 4. In this embodiment, only configurations different from the first to third embodiments will be described, and the same reference numbers will be used for common configurations, and descriptions thereof will be omitted.

[0033] FIG. 7 is an explanatory diagram of the water-repellent and waterproof structure of this embodiment. FIG. 7(a) is a cross-sectional view of line AA in FIG. 1(a), and FIG. 7(b) is a perspective view of the first cover member 1 in the first region X1. The mating portion of the first cover member 1 includes a first mating surface 1A, a second mating surface 1B, and a third mating surface 1C arranged in order from the exterior side (exterior side) to the interior side, and is configured in an uneven shape. The mating portion of the second cover member 1 includes a first mating surface 2A, a second mating surface 2B, and a third mating surface 2C arranged in order from the exterior side to the interior side, and is configured in an uneven shape. The first mating surfaces 1A and 2A, the second mating surfaces 1B and 2B, and the third mating surfaces 1C and 2C face each other with a predetermined clearance formed therebetween. In this embodiment, the waterproof structure of the first cover member 1 and the second cover member 2 is a water-repellent treatment by a microfabricated shape, and one of the third mating surfaces 1C, 2C is a water-repellent treated surface. Therefore, it is possible to suppress the infiltration of liquid from the third mating surfaces 1C, 2C.

[0034] In this embodiment, at least a part of the first mating surfaces 1A, 2A and the second mating surfaces 1B, 2B is treated with a water-repellent shape (treated with water-repellent treatment), and the part treated with water-repellent treatment is called the water-repellent treatment part 5. In this embodiment, the water-repellent treatment part 5 is applied in the first region X1 near the groove part 6, and the groove part 6 is located between the water-repellent treatment part 5 and the second region X2. With this configuration, when liquid infiltrating from the gap between the first mating surfaces 1A, 2A in the second region X2 flows up to the first region X1 and reaches the water-repellent treatment part 5, it is possible to suppress water from entering the gap between the mating surfaces beyond the water-repellent treatment part 5. In addition, the liquid stopped by the water-repellent treatment part 5 flows down the nearby groove part 6 and is discharged from the opening part 3A. Similarly, the liquid infiltrating from the opening part 3A passes through the groove part 6 and is discharged from the gap between the first mating surfaces 1A, 2A in the second region X2. Therefore, by subjecting a partial area of ​​the mating surfaces of the first cover member 1 and the second cover member 2 to a water-repellent treatment, it is possible to prevent water from entering the inside of the housing 100.

[0035] The following describes a combination of water-repellent treatments applied to the mating surfaces of the first cover member 1 and the second cover member 2. The paths along which liquid can flow from the gap between the mating surfaces of the first cover member 1 and the second cover member 2 include the gap between the first mating surfaces 1A, 2A and the gap between the second mating surfaces 1B, 2B. When applying water-repellent treatment to prevent water from seeping in through these gaps, it is sufficient to apply the water-repellent treatment to at least one of the opposing surfaces.

[0036] In this embodiment, in consideration of the constraints of the mold, the third mating surface 1C, the first mating surface 1A, and the second mating surface 2B are subjected to a water-repellent treatment, or the third mating surface 1C, the first mating surface 2A, and the second mating surface 2B are subjected to a water-repellent treatment. In addition, the third mating surface 1C, the second mating surface 1B, and the first mating surface 2A are subjected to a water-repellent treatment, or the third mating surface 2C, the first mating surface 2A, and the second mating surface 1B are subjected to a water-repellent treatment. With this configuration, it is possible to suppress the infiltration of water beyond the water-repellent treatment portion 5 in the first region X1, and the infiltration of water into the housing 100 can be suppressed.

[0037] Although it is difficult to apply a water-repellent treatment to the first mating surface 1A and the second mating surface 1B due to the constraints of the mold, if other methods such as direct processing can be used, the first mating surface 1A and the second mating surface 1B may be subjected to a water-repellent treatment. For example, the third mating surface 1C, the first mating surface 1A, and the second mating surface 1B may be subjected to a water-repellent treatment, or the third mating surface 2C, the second mating surface 2B, and the first mating surface 1A may be subjected to a water-repellent treatment. In addition, the third mating surface 2C, the first mating surface 1A, and the second mating surface 2B may be subjected to a water-repellent treatment, or the third mating surface 2C, the first mating surface 1A, and the second mating surface 1B may be subjected to a water-repellent treatment.

[0038] Hereinafter, a case will be described in which a water-repellent surface formed by micromachining, which is the waterproof structure of the first cover member 1 and the second cover member 2, is provided on one of the second mating surfaces 1B, 2B. The gap between the first mating surfaces 1A, 2A is the path through which liquid can flow from the gap between the mating surfaces of the first cover member 1 and the second cover member 2. When performing water-repellent treatment to prevent water from entering through this gap, it is sufficient to perform the water-repellent treatment on at least one of the opposing surfaces.

[0039] In this embodiment, in consideration of the constraints of the mold, the second mating surface 1B and the first mating surface 2A are subjected to a water-repellent treatment, the second mating surface 2B and the first mating surface 1A are subjected to a water-repellent treatment, or the second mating surface 2B and the first mating surface 2A are subjected to a water-repellent treatment. With such a configuration, it is possible to suppress water from entering through the water-repellent treatment portion 5.

[0040] Although it is difficult to apply a water-repellent treatment to the first mating surface 1A and the second mating surface 1B due to mold restrictions, if other methods such as direct processing can be used, the water-repellent treatment may be applied to the first mating surface 1A and the second mating surface 1B. With this configuration, it is possible to prevent water from entering beyond the water-repellent treatment portion 5 in the first region X1, and thus to prevent water from entering the inside of the housing 100.

[0041] The disclosure of this embodiment includes the following configuration. (Configuration 1) A first cover member and a second cover member each having an uneven mating portion including a first mating surface, a second mating surface, and a third mating surface arranged in this order from the outer side to the inner side; A third cover member that covers a part of the joint portion; a waterproof member disposed between the third mating surfaces; In a region covered by the third cover member, one of the first mating surface of the first cover member and the second mating surface of the second cover member, and the first mating surface of the second cover member and the second mating surface of the second cover member has a water-repellent and waterproof structure that has been subjected to a water-repellent treatment using a micro-machined shape; the first cover member has a groove portion near the water-repellent waterproof structure in an area covered by the third cover member, An electronic device characterized in that a first end of the groove portion is connected to the second mating surface of the first cover member and a second end is connected to an end surface of the third cover member. (Configuration 2) A first cover member and a second cover member each having an uneven mating portion including a first mating surface, a second mating surface, and a third mating surface arranged in this order from the outer side to the inner side; A third cover member that covers a part of the joint portion; a waterproof member disposed between the second mating surfaces; In a region covered by the third cover member, one of the first mating surface of the first cover member and the second mating surface of the second cover member, and the first mating surface of the second cover member and the second mating surface of the first cover member has a water-repellent and waterproof structure that has been subjected to a water-repellent treatment using a micro-machined shape; the first cover member has a groove portion near the water-repellent waterproof structure in an area covered by the third cover member, An electronic device characterized in that a first end of the groove portion is connected to the second mating surface of the first cover member and a second end is connected to an end surface of the third cover member. (Configuration 3) A first cover member and a second cover member each having an uneven mating portion including a first mating surface, a second mating surface, and a third mating surface arranged in this order from the outer side to the inner side; A third cover member that covers a part of the joint portion; a waterproof member disposed between the first mating surfaces; In the region covered by the third cover member, one of the first mating surface of the first cover member and the first mating surface of the second cover member has a water-repellent and waterproof structure that has been subjected to a water-repellent treatment using a micro-machined shape; the first cover member has a groove portion near the water-repellent waterproof structure in an area covered by the third cover member, An electronic device characterized in that a first end of the groove portion is connected to the first mating surface of the first cover member and a second end is connected to an end surface of the third cover member. (Configuration 4) A first cover member and a second cover member each having an uneven mating portion including a first mating surface, a second mating surface, and a third mating surface arranged in this order from the outer side to the inner side; and a third cover member that covers a part of the joint portion, The third mating surface of the first cover member is subjected to a water-repellent treatment using a micro-machined shape, in a region covered by the third cover member, any one of the first mating surface of the first cover member and the second mating surface of the second cover member, the first mating surface of the second cover member and the second mating surface of the second cover member, and the second mating surface of the first cover member and the first mating surface of the second cover member has a water-repellent and waterproof structure that has been subjected to a water-repellent treatment using a micro-machined shape; the first cover member has a groove portion near the water-repellent waterproof structure in an area covered by the third cover member, An electronic device characterized in that a first end of the groove portion is connected to the second mating surface of the first cover member and a second end is connected to an end surface of the third cover member. (Configuration 5) A first cover member and a second cover member each having an uneven mating portion including a first mating surface, a second mating surface, and a third mating surface arranged in this order from the outer side to the inner side; and a third cover member that covers a part of the joint portion, The third mating surface of the second cover member is subjected to a water-repellent treatment using a micro-machined shape, In the region covered by the third cover member, the second mating surface of the first cover member and the first mating surface of the second cover member have a water-repellent and waterproof structure that has been subjected to a water-repellent treatment using a micro-machined shape; the first cover member has a groove portion near the water-repellent waterproof structure in an area covered by the third cover member, An electronic device characterized in that a first end of the groove portion is connected to the second mating surface of the first cover member and a second end is connected to an end surface of the third cover member. (Configuration 6) A first cover member and a second cover member each having an uneven mating portion including a first mating surface, a second mating surface, and a third mating surface arranged in this order from the outer side to the inner side; and a third cover member that covers a part of the joint portion, The second mating surface of the first cover member is subjected to a water-repellent treatment using a micro-machined shape, In the region covered by the third cover member, the first mating surface of the second cover member has a water-repellent and waterproof structure that has been subjected to a water-repellent treatment using a micro-machined shape; the first cover member has a groove portion near the water-repellent waterproof structure in an area covered by the third cover member, An electronic device characterized in that a first end of the groove portion is connected to the second mating surface of the first cover member and a second end is connected to an end surface of the third cover member. (Configuration 7) A first cover member and a second cover member each having an uneven mating portion including a first mating surface, a second mating surface, and a third mating surface arranged in this order from the outer side to the inner side; and a third cover member that covers a part of the joint portion, The second mating surface of the second cover member is subjected to a water-repellent treatment using a micro-machined shape; In the region covered by the third cover member, one of the first mating surface of the first cover member and the first mating surface of the second cover member has a water-repellent and waterproof structure that has been subjected to a water-repellent treatment using a micro-machined shape; the first cover member has a groove portion near the water-repellent waterproof structure in an area covered by the third cover member, An electronic device characterized in that a first end of the groove portion is connected to the second mating surface of the first cover member and a second end is connected to an end surface of the third cover member. (Configuration 8) the third cover member has a protrusion shape facing a bottom surface of the groove portion, An electronic device described in any one of configurations 1, 2, 4 to 7, characterized in that the distance between the bottom surface and the protrusion shape is smaller than the distance between the second mating surface of the first cover member and the second mating surface of the second cover member. (Configuration 9) 9. The electronic device according to configuration 8, wherein at least one of the bottom surface and the protrusion shape has an inclined portion that slopes toward the two ends. (Configuration 10) the bottom surface is continuous with the second mating surface of the first cover member, 10. The electronic device according to configuration 8 or 9, wherein the bottom surface and the second mating surface adjacent to the bottom surface are subjected to a hydrophilic treatment using a microfabricated shape. (Configuration 11) 11. The electronic device according to any one of configurations 1 to 10, wherein the waterproof member is an elastic member. (Configuration 12) At least one of the first cover member and the second cover member is a molded part made of a resin material, 12. The electronic device according to any one of configurations 1 to 11, wherein the micromachined shape is a transfer of a shape machined on the mold. (Configuration 13) An electronic device described in any one of configurations 1 to 12, characterized in that the third cover member is an elastic member and is adhesively fixed to the first cover member and the second cover member. (Configuration 14) 14. The electronic device according to any one of configurations 1 to 13, wherein the electronic device is an imaging device including an imaging element that receives an image formed by an optical system.

[0042] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various modifications and changes are possible within the scope of the gist of the present invention. [Explanation of symbols]

[0043] 1 First cover member 2 Second cover member 1A, 2A First mating surface 1B,2B Second mating surface 1C, 2C 3rd mating surface 3 Third cover member 4. Waterproofing materials 5. Water-repellent and waterproof structure 6 Groove

Claims

1. a first cover member and a second cover member each having an uneven mating portion including a first mating surface, a second mating surface, and a third mating surface, which are arranged in this order from the outer side to the inner side; A third cover member that covers a part of the joint portion; a waterproof member disposed between the third mating surfaces, In a region covered by the third cover member, one of the first mating surface of the first cover member and the second mating surface of the second cover member, and the first mating surface of the second cover member and the second mating surface of the second cover member has a water-repellent and waterproof structure that has been subjected to a water-repellent treatment using a micro-machined shape; the first cover member has a groove portion near the water repellent waterproof structure in an area covered by the third cover member, An electronic device, characterized in that a first end of the groove portion is connected to the second mating surface of the first cover member, and a second end is connected to an end surface of the third cover member.

2. a first cover member and a second cover member each having an uneven mating portion including a first mating surface, a second mating surface, and a third mating surface, which are arranged in this order from the outer side to the inner side; A third cover member that covers a part of the joint portion; a waterproof member disposed between the second mating surfaces; In a region covered by the third cover member, one of the first mating surface of the first cover member and the second mating surface of the second cover member, and the first mating surface of the second cover member and the second mating surface of the first cover member has a water-repellent and waterproof structure that has been subjected to a water-repellent treatment using a micro-machined shape; the first cover member has a groove portion near the water repellent waterproof structure in an area covered by the third cover member, An electronic device, characterized in that a first end of the groove portion is connected to the second mating surface of the first cover member, and a second end is connected to an end surface of the third cover member.

3. a first cover member and a second cover member each having an uneven mating portion including a first mating surface, a second mating surface, and a third mating surface, which are arranged in this order from the outer side to the inner side; A third cover member that covers a part of the joint portion; a waterproof member disposed between the first mating surfaces; In the region covered by the third cover member, one of the first mating surface of the first cover member and the first mating surface of the second cover member has a water-repellent and waterproof structure that has been subjected to a water-repellent treatment using a micro-machined shape; the first cover member has a groove portion near the water repellent waterproof structure in an area covered by the third cover member, An electronic device, characterized in that a first end of the groove portion is connected to the first mating surface of the first cover member, and a second end is connected to an end surface of the third cover member.

4. a first cover member and a second cover member each having an uneven mating portion including a first mating surface, a second mating surface, and a third mating surface, which are arranged in this order from the outer side to the inner side; a third cover member that covers a part of the joint, the third mating surface of the first cover member is subjected to a water-repellent treatment using a micromachined shape; In a region covered by the third cover member, any one of the first mating surface of the first cover member and the second mating surface of the second cover member, the first mating surface of the second cover member and the second mating surface of the second cover member, and the second mating surface of the first cover member and the first mating surface of the second cover member has a water-repellent and waterproof structure that has been subjected to a water-repellent treatment using a micro-machined shape; the first cover member has a groove portion near the water repellent waterproof structure in an area covered by the third cover member, An electronic device, characterized in that a first end of the groove portion is connected to the second mating surface of the first cover member, and a second end is connected to an end surface of the third cover member.

5. a first cover member and a second cover member each having an uneven mating portion including a first mating surface, a second mating surface, and a third mating surface, which are arranged in this order from the outer side to the inner side; a third cover member that covers a part of the joint, the third mating surface of the second cover member is subjected to a water-repellent treatment using a micromachined shape; In the region covered by the third cover member, the second mating surface of the first cover member and the first mating surface of the second cover member have a water-repellent and waterproof structure that has been subjected to a water-repellent treatment using a micro-machined shape, the first cover member has a groove portion near the water repellent waterproof structure in an area covered by the third cover member, An electronic device, characterized in that a first end of the groove portion is connected to the second mating surface of the first cover member, and a second end is connected to an end surface of the third cover member.

6. a first cover member and a second cover member each having an uneven mating portion including a first mating surface, a second mating surface, and a third mating surface, which are arranged in this order from the outer side to the inner side; a third cover member that covers a part of the joint, The second mating surface of the first cover member is subjected to a water-repellent treatment using a micro-machined shape, In a region covered by the third cover member, the first mating surface of the second cover member has a water-repellent and waterproof structure that has been subjected to a water-repellent treatment using a micro-machined shape; the first cover member has a groove portion near the water repellent waterproof structure in an area covered by the third cover member, An electronic device, characterized in that a first end of the groove portion is connected to the second mating surface of the first cover member, and a second end is connected to an end surface of the third cover member.

7. a first cover member and a second cover member each having an uneven mating portion including a first mating surface, a second mating surface, and a third mating surface, which are arranged in this order from the outer side to the inner side; a third cover member that covers a part of the joint, The second mating surface of the second cover member is subjected to a water-repellent treatment using a micro-machined shape, In the region covered by the third cover member, one of the first mating surface of the first cover member and the first mating surface of the second cover member has a water-repellent and waterproof structure that has been subjected to a water-repellent treatment using a micro-machined shape; the first cover member has a groove portion near the water repellent waterproof structure in an area covered by the third cover member, An electronic device, characterized in that a first end of the groove portion is connected to the second mating surface of the first cover member, and a second end is connected to an end surface of the third cover member.

8. the third cover member has a protrusion shape facing a bottom surface of the groove portion, The electronic device described in any one of claims 1, 2, 4 to 7, characterized in that a distance between the bottom surface and the protrusion shape is smaller than a distance between the second mating surface of the first cover member and the second mating surface of the second cover member.

9. 9. The electronic device according to claim 8, wherein at least one of the bottom surface and the protruding shape has an inclined portion inclined toward the two ends.

10. the bottom surface is continuous with the second mating surface of the first cover member, 9. The electronic device according to claim 8, wherein the bottom surface and the second mating surface adjacent to the bottom surface are subjected to a hydrophilic treatment using a microfabricated shape.

11. 8. The electronic device according to claim 1, wherein the waterproof member is an elastic member.

12. At least one of the first cover member and the second cover member is a molded part made of a resin material, 8. The electronic device according to claim 1, wherein the micromachined shape is a transfer of a shape machined on the mold.

13. 8. The electronic device according to claim 1, wherein the third cover member is an elastic member and is adhesively fixed to the first cover member and the second cover member.

14. 8. The electronic device according to claim 1, wherein the electronic device is an image pickup device including an image pickup element that receives an image formed by an optical system.

Images