Abstract: Provided is a substrate unit that has a simple structure and is able to prevent water that has entered the inside from reaching a mounting surface of the substrate. The substrate unit includes: a substrate, a first casing member that supports the substrate, and a second casing member that is integrated into one piece with the first casing member and is provided on a mounting surface side of the substrate, wherein the second casing member is provided with a protruding portion that protrudes into a housing space that is defined by the first casing member and the second casing member and houses the substrate, and intersects a plane that extends along the mounting surface of the substrate.

Abstract: Provided is a substrate unit that has an excellent heat dissipation capability. A substrate unit includes: a substrate having a conductive pattern formed on one surface thereof, the substrate being provided with an opening; a conductive member that includes a main portion that is fixed to the other surface of the substrate, and to which at least one terminal of an electronic component is electrically connected via the opening that is formed in the substrate; and a heat dissipation member with which an extension portion that extends from the main portion of the conductive member is in contact.

Abstract: A case is provided with a drainage channel that smoothly drains water while also being able to suppress the intrusion of water into a housing space. The case includes a first case body in which a channel extending from a region serving as the housing space is formed. The channel includes a first channel portion having one end side connected to a first outlet and another end side connected to a second outlet, and a second channel portion connects the first channel portion and the housing space. Out of the opening edges of the second channel portion that face the first channel portion, a second-side opening edge, which is the edge on the second outlet side of the first channel portion, is located nearer to the housing space than a first-side opening edge, which is the edge on the first outlet side of the first channel portion, is.

Abstract: The present invention provides a case having a simple structure capable of suppressing the intrusion of water through a drainage channel. The case includes a first case body in which a channel that extends from a region serving as a first space is formed, and a second case body that is integrated with the first case body. A slit is formed in an outer wall portion of the second case body, and the channel formed in the first case body is continuous with at least a portion of the slit formed in the second case body. A lock piece portion for integration with the first case is formed on the outer wall portion of the second case body, and the lock piece portion has a cantilevered shape due to being defined by the slit.