The present application discloses a rear cover of a vehicle lamp having a valve structure and infrared radiation drying and air discharging function, which includes an end cover provided with a plurality of air vents, a connecting base for connecting with a vehicle lamp housing, and a membrane module for infrared radiation drying and air discharging. The end cover and the connecting base are assembled and connected to form the rear cover of the vehicle lamp. The membrane module is built in a cavity of the rear cover of the vehicle lamp. At least one valve is provided on a path of air circulation inside and outside the vehicle lamp housing through the rear cover of the vehicle lamp, and the at least one valve automatically opens and closes under impulse of air pressure difference.

A vehicle lamp is disposed. The vehicle lamp includes a light source, a glass disposed in front of the light source, a housing configured to support the light source and the glass and form an appearance, a thermoelectric element unit configured to generate cold wind and hot wind by introducing external air of the housing, a first flow path configured to introduce one of the cold wind and the hot wind generated by the thermoelectric element unit into the housing, and a second flow path configured to discharge the other one of the cold wind and the hot wind to outside of the housing, the thermoelectric element unit includes a first part configured to be connected to the first flow path and generate one of cold air and hot air, a second part configured to be connected to the second flow path and generate the other one of the cold air and the hot air, a body configured to partition an arrangement space of the first part and the second part and in which an opening is formed on an upper surface, and a fan configured to be disposed on the opening of the body and introduce the air in a direction from an upper portion to a lower portion, and the thermoelectric element unit is positioned on an upper end of an external rear surface of the housing.

A water decomposition device may include a hydrogen-generating electrode including a first external electrode and at least one first internal electrode formed integrally with the first external electrode, and an oxygen-generating electrode including a second external electrode and at least one second internal electrode formed integrally with the second external electrode. The first external electrode and the second external electrode are disposed to face each other, and the first internal electrode and the second internal electrode are disposed alternately in a direction perpendicular to the longitudinal direction thereof. Therefore, the water decomposition device may secure both transparency and durability even when an opaque material is used therefor.

A water decomposition device may include a hydrogen-generating electrode including a first external electrode and at least one first internal electrode formed integrally with the first external electrode, and an oxygen-generating electrode including a second external electrode and at least one second internal electrode formed integrally with the second external electrode. The first external electrode and the second external electrode are disposed to face each other, and the first internal electrode and the second internal electrode are disposed alternately in a direction perpendicular to the longitudinal direction thereof. Therefore, the water decomposition device may secure both transparency and durability even when an opaque material is used therefor.

A device for dehumidifying a closed vehicle headlamp housing includes a box with an opening connecting the inside of the box with the inside of the closed housing, and an opening connecting the inside of the box with the outside of the closed housing. The device further includes a shutter for alternatively opening the opening or sealingly closing it, an actuation module configured such that the shutter closes the opening when it is activated, and a heating element for emitting heat when the actuation module is activated.

A device for dehumidifying a closed vehicle headlamp housing includes a box with an opening connecting the inside of the box with the inside of the closed housing, and an opening connecting the inside of the box with the outside of the closed housing. The device further includes a shutter for alternatively opening the opening or sealingly closing it, an actuation module configured such that the shutter closes the opening when it is activated, and a heating element for emitting heat when the actuation module is activated.

A ventilation cap according to the present disclosure includes a body, a ventilation filter, a cover member, and legs. A first vent hole is defined in the body, and the ventilation filter is disposed on the body to cover the first vent hole. The cover member is coupled to the body to cover the ventilation filter, and the legs are formed beneath the body and are spaced apart from each other around the first vent hole. Further, the legs are received in a hole defined in a target housing to be coupled to the target housing, and a second vent hole communicating with the first vent hole is defined in a side portion of the cover member.

A ventilation cap according to the present disclosure includes a body, a ventilation filter, a cover member, and legs. A first vent hole is defined in the body, and the ventilation filter is disposed on the body to cover the first vent hole. The cover member is coupled to the body to cover the ventilation filter, and the legs are formed beneath the body and are spaced apart from each other around the first vent hole. Further, the legs are received in a hole defined in a target housing to be coupled to the target housing, and a second vent hole communicating with the first vent hole is defined in a side portion of the cover member.

A closing element for closing a service opening in the housing of a headlamp, and a method therefor, the closing element having a ventilation component, with the aid of which a gas exchange between an inside and an outside of the housing of the headlamp is facilitated. The closing element includes a sealing formation, on which a sealing member may be arranged or is arranged, so that the ventilation component may be or is temporarily closed with the aid of the sealing member.

A closing element for closing a service opening in the housing of a headlamp, and a method therefor, the closing element having a ventilation component, with the aid of which a gas exchange between an inside and an outside of the housing of the headlamp is facilitated. The closing element includes a sealing formation, on which a sealing member may be arranged or is arranged, so that the ventilation component may be or is temporarily closed with the aid of the sealing member.