Radar device
AssigneesDenso Corporation, Toyota Jidosha Kabushiki Kaisha
InventorsSusumu ENOKIDA, Eisuke IKENO, Kenji FURUMOTO
Life of this patent
Estimating the term…
Abstract
A radar device used in a mobile body includes a sensor circuit board and a sensor housing. The sensor circuit board emits a radio wave so as to detect an object around the mobile body. The sensor housing defines a receiving chamber that receives the sensor circuit board. The sensor housing forms a breathing hole that reduces a pressure difference between the receiving chamber and an outside space outside the sensor housing. A drainage rib is formed on a rear-side back surface of the sensor housing so as to project from the rear-side back surface and partially surround the breathing hole. The drainage rib has a shape that opens toward a lower side of the breathing hole so as to guide drainage from the breathing hole.
Claims6
A radar device configured to be used in a mobile body, the radar device comprising:
- an antenna device that is configured to emit a radio wave so as to detect an object around the mobile body;
- and
- an antenna housing that defines a receiving chamber, which receives the antenna device, wherein the antenna housing forms a breathing hole that is configured to reduce a pressure difference between the receiving chamber and an outside space outside the antenna housing, wherein:
- a drainage rib is formed on an outer surface of the antenna housing so as to project from the outer surface of the antenna housing and partially surround the breathing hole, wherein the drainage rib has a shape that opens toward a lower side of the breathing hole so as to guide drainage from the breathing hole;
- the antenna housing has a housing recess that is recessed on the outer surface;
- an outer opening of the breathing hole and the drainage rib are formed on a bottom wall of the housing recess;
- and
- a spacing between a recess peripheral wall of the housing recess and an outer wall surface of the drainage rib is narrower in a horizontal direction of the breathing hole than on an upper side of the breathing hole.
Dependencies are inferred from the claim text.