A ventilation housing of the present disclosure includes: a housing; and a ventilation assembly. The housing includes a tubular projection extending to project from an outer surface and internally having a first space communicating the inside and the outside of the housing. The ventilation assembly includes: an internal member being a tubular body having an opening at a first end portion and an opening at a second end portion; a gas-permeable membrane covering the opening at the first end portion of the internal member; and an external member being a tubular body having a bottom, the external member being joined to the internal member with the internal member inserted in the interior of the external member from the first end portion side. The ventilation assembly is fixed to the projection with the projection inserted in the opening at the second end portion of the internal member to make an inner peripheral surface of the internal member and an outer peripheral surface of the projection abut each other. The ventilation assembly has a second space serving as a ventilation path connecting the gas-permeable membrane and the outside of the ventilation assembly in the inside of the internal member, the inside of the external member, and/or an interspace between the internal member and the external member joined together. A height H1 of the internal member is 6 to 10 mm. A ratio of the height H1 of the internal member to a height H2 of the projection is 1.00 to 1.70. The ventilation housing of the present disclosure exhibits excellent performance in terms of moisture permeation between the inside and the outside of the housing and is capable of reducing dropping of the ventilation assembly from the projection of the housing.

A ventilation housing of the present disclosure includes: a housing; and a ventilation assembly. The housing includes a tubular projection extending to project from an outer surface and internally having a first space communicating the inside and the outside of the housing. The ventilation assembly includes: an internal member being a tubular body having an opening at a first end portion and an opening at a second end portion; a gas-permeable membrane covering the opening at the first end portion of the internal member; and an external member being a tubular body having a bottom, the external member being joined to the internal member with the internal member inserted in the interior of the external member from the first end portion side. The ventilation assembly is fixed to the projection with the projection inserted in the opening at the second end portion of the internal member to make an inner peripheral surface of the internal member and an outer peripheral surface of the projection abut each other. The ventilation assembly has a second space serving as a ventilation path connecting the gas-permeable membrane and the outside of the ventilation assembly in the inside of the internal member, the inside of the external member, and/or an interspace between the two members. A ratio between an area S1 of a cross-section of the first space and a smallest total area S2.sub.min determined by comparison of values of different total areas determined at different distances from the gas-permeable membrane, the total areas each being determined for a cross-section(s) of the second space, is 1.0 or more. A ratio between the area S1 and a total area S2.sub.out of a plane consisting of a cross-section(s) of the second space taken at a position(s) where the second space is the narrowest is more than 1.0. This ventilation housing exhibits excellent performance in terms of moisture permeation between the inside and the outside of the housing.

Proposed is a moisture control module for an automobile lamp, the moisture control module includes a moisture absorption composition in the accommodating part and seals the moisture absorption composition with a breathable film and a cover, thereby reducing mounting time, space, and cost as compared with a pouch type absorbent. In addition, the moisture absorption performance continues for a long time, and when used in a closed device, which is prone to dew condensation inside according to temperature changes, especially when used in automobile lamps, the internal humidity is kept low, so that dew condensation does not occur inside, and at the same time, has the effect of preventing damage to the packaging material, etc.

Proposed is a moisture control module for an automobile lamp, the moisture control module includes a moisture absorption composition in the accommodating part and seals the moisture absorption composition with a breathable film and a cover, thereby reducing mounting time, space, and cost as compared with a pouch type absorbent. In addition, the moisture absorption performance continues for a long time, and when used in a closed device, which is prone to dew condensation inside according to temperature changes, especially when used in automobile lamps, the internal humidity is kept low, so that dew condensation does not occur inside, and at the same time, has the effect of preventing damage to the packaging material, etc.

A high beam and low beam switching device, a vehicle lamp comprising the high beam and low beam switching device, and a vehicle, the device comprising a light shielding plate, an impeller, and a driving device that is used for driving the light shielding plate and the impeller to rotate forwards and backwards; and a limiting mechanism used for limiting the rotation angle of the light shielding plate is provided between the light shielding plate and the driving device. The high-beam and low-beam switching device can achieve the successful switching of a high beam and a low beam, and the use of a vehicle lamp will not be affected; mist or moisture in the interior of the vehicle lamp can be removed, and meanwhile, the heat dissipation effect of the vehicle lamp can be improved, and the space that is occupied by the vehicle lamp will not be increased.

An illuminated vehicle sign comprises a receptacle having an internal cavity with a light reflective internal surface. A cover over an end of the receptacle comprises one or more orifices opening into the internal cavity from an outside of the receptacle. The orifices are dimensioned and/or relatively arranged in accordance with one or more markings or alphanumeric characters. The orifices provide for ingress of air into the internal cavity from the outside of the receptacle and for emission of light from the internal cavity. A vent in the receptacle is positioned relative to the orifices to provide for egress of the air from the internal cavity. A light source is disposed within the receptacle to emit the light through the internal cavity and out of the orifices. An apertured screen is disposed inside of the internal cavity that is spaced apart from the cover.

An illuminated vehicle sign comprises a receptacle having an internal cavity with a light reflective internal surface. A cover over an end of the receptacle comprises one or more orifices opening into the internal cavity from an outside of the receptacle. The orifices are dimensioned and/or relatively arranged in accordance with one or more markings or alphanumeric characters. The orifices provide for ingress of air into the internal cavity from the outside of the receptacle and for emission of light from the internal cavity. A vent in the receptacle is positioned relative to the orifices to provide for egress of the air from the internal cavity. A light source is disposed within the receptacle to emit the light through the internal cavity and out of the orifices. An apertured screen is disposed inside of the internal cavity that is spaced apart from the cover.

Disclosed is a vehicular lamp. This vehicular lamp comprises: a light source; glass disposed in front of the light source; a housing supporting the light source and the glass and forming the exterior; a thermoelectric element unit which generates cold wind and warm wind by introducing air outside the housing into the housing; a first flow path through which one of the cold wind or the warm wind generated in the thermoelectric element unit flows into the housing; and a second flow path through which the other one of the cold wind or the warm wind is discharged outside the housing. The thermoelectric element includes: a first part connected to the first flow path and generating one of cold air or warm air; a second part connected to the second flow path and generating the other one of the cold air or the warm air; a body part which partitions arrange spaces for the first part and the second part and has an opening formed in the bottom surface; a first fan which is disposed in the opening of the body part and generates an inflow of air from the lower side to the upper side; and a second fan which is disposed inside the housing and circulates the air that has flowed into the first flow path.

A light source unit provided with a light-emitting element as a light source is attached to a rear wall section of a housing. The light source unit is attached to the housing, in the state where a socket is inserted in an opening formed in the rear wall section and an elastic seal member attached to the front end of the socket is pressed against the rear wall section. A rib extending toward a lamp rear side so as to surround at least the upper half section of the opening is formed on the rear wall section of the housing.

An air permeable cap for a vehicle may include: a cover part formed in a cylindrical shape with a closed end part, and having a plurality of guide ribs radially formed on an inner circumferential surface thereof; a foam part inserted and installed in the cover part so as to be contacted with the guide ribs, and having a ventilation hole formed on one side thereof; a membrane part installed between the foam part and the cover part, and configured to block a flow of water through the ventilation hole and allow a flow of air through the ventilation hole; and an adhesion retention part coupled in a concave-convex shape to retain an adhesion force between the foam part and the cover part.