Provided is an electronic control device capable of suppressing outflow of a sealing material to the outside and reducing defective attachment of a bracket.

The electronic control device 1 to be attached to a bracket 2 includes a cover 4 (first housing) and a case 3 (second housing) fitted to the cover 4. The cover 4 (first housing) includes a first flange 4F and a first groove portion 31 filled with a sealing material 5. The case 3 (second housing) includes a second flange 3F overlapping the first flange 4F, and a case protrusion 33 (protrusion) fitted to the first groove portion 31 and embedded in the sealing material 5. The first flange 4F of the cover 4 (first housing) has a second groove portion 41 present at a position that is closer to the outside than the first groove portion 31 is.

The sealing method is for sealing between: a rear surface of a first component which is a composite material containing a reinforcing fiber and a resin; and a front surface of a second component facing the rear surface of the first component. The sealing method includes: a step (ST03) in which a molded body is placed at a corner between the front surface and an end surface of the first component, with a first sealing material interposed therebetween; and a step (ST06) in which a second sealing material is applied from the molded body up to the front surface of the second component.

The sealing method is for sealing between: a rear surface of a first component which is a composite material containing a reinforcing fiber and a resin; and a front surface of a second component facing the rear surface of the first component. The sealing method includes: a step (ST03) in which a molded body is placed at a corner between the front surface and an end surface of the first component, with a first sealing material interposed therebetween; and a step (ST06) in which a second sealing material is applied from the molded body up to the front surface of the second component.

A composite gasket formed of a fluoropolymer and having a non-metallic fluoropolymer insert can be used in many applications. The non-metallic insert is corrosion resistant and can be formed into many different shapes and sizes as dictated by the particular application desired.

A composite gasket formed of a fluoropolymer and having a non-metallic fluoropolymer insert can be used in many applications. The non-metallic insert is corrosion resistant and can be formed into many different shapes and sizes as dictated by the particular application desired.

A waterproof case for automobile components includes: a case body part that includes a storage space for housing an object and an opening connecting to the storage space; and a lid part that is configured to be attached to the case body part to close the opening. A seal material (made of an adhesive silicone gel is interposed between the case body part and the lid part. An acceptance part is provided in at least one of the case body part and the lid part. An engagement convex part is configured to be locked in the acceptance part at a position corresponding to the acceptance part in the case body part and the lid part.

An object of the invention is to provide an electronic control unit having a structure that suppresses corrosion of plating and completely seals the substrate side under an environment where corrosion occurs. An electronic control unit 1 includes a printed wiring board 10 in which electronic components are provided, a case 20 in which the printed wiring board 10 is accommodated, and a cover 22 that is provided on the case 20. The case 20 and the cover 22 have joint surfaces that face each other and are connected via a sealing material 28. The joint surface is provided with a screw 30 that passes through the cover 22 or the case 20. A plating 24 is provided in a surface of the case 20 or the cover 22 that is provided with a through hole through which the screw 30 penetrates. An exposed portion 25a of a base material formed by partially peeling off the plating 24 presents inside the case 20 or the cover 22 and on an inner side of the case 20 from the through hole. The sealing material 28 has penetrated into the exposed portion 25a of the base material.

An object of the invention is to provide an electronic control unit having a structure that suppresses corrosion of plating and completely seals the substrate side under an environment where corrosion occurs. An electronic control unit 1 includes a printed wiring board 10 in which electronic components are provided, a case 20 in which the printed wiring board 10 is accommodated, and a cover 22 that is provided on the case 20. The case 20 and the cover 22 have joint surfaces that face each other and are connected via a sealing material 28. The joint surface is provided with a screw 30 that passes through the cover 22 or the case 20. A plating 24 is provided in a surface of the case 20 or the cover 22 that is provided with a through hole through which the screw 30 penetrates. An exposed portion 25a of a base material formed by partially peeling off the plating 24 presents inside the case 20 or the cover 22 and on an inner side of the case 20 from the through hole. The sealing material 28 has penetrated into the exposed portion 25a of the base material.

The present invention aims to provide a curable resin composition excellent in surface curability and deep curability by irradiation with active energy rays such as ultraviolet rays while maintaining sealability. The present invention provides a curable resin composition including the following ingredients (A) to (D): ingredient (A): a polymer which has one or more (meth)acryloyl groups and has a polyisobutylene backbone containing a —[CH2C(CH3)2]- unit, ingredient (B): a radical polymerization initiator, ingredient (C): a triarylphosphine or a triarylphosphine derivative, and ingredient (D): xanthone or a xanthone derivative.

The present invention aims to provide a curable resin composition excellent in surface curability and deep curability by irradiation with active energy rays such as ultraviolet rays while maintaining sealability. The present invention provides a curable resin composition including the following ingredients (A) to (D): ingredient (A): a polymer which has one or more (meth)acryloyl groups and has a polyisobutylene backbone containing a —[CH2C(CH3)2]- unit, ingredient (B): a radical polymerization initiator, ingredient (C): a triarylphosphine or a triarylphosphine derivative, and ingredient (D): xanthone or a xanthone derivative.