Abstract: A heat removal unit that removes heat from air in a battery pack in which a battery cell is accommodated to cool or dehumidify the air is provided. Further, a circulation route that connects the battery pack and the heat removal unit to each other to recirculate the air is provided. Furthermore, a direction controller that controls a flow direction of the air in the circulation route in opposite direction upon cooling and upon dehumidification is provided.

Abstract: An electrical connector allowing a housing and a contact portion to be displaced relative to a mounting circuit board, parallel to a board surface, without a reinforcing plate separate from a contact member. A basal portion of a contact member is present along an upper surface of a base portion of a housing. A mounting-side elastic portion of the contact member is present along a lower surface of the base portion of the housing. A folding-back portion of the contact member is located at a rear of the base portion of the housing to connect the basal portion to the mounting-side elastic portion. First and second connecting leg portions extend downward from the mounting-side elastic portion. Each tip side of the leg portions acts as a mounting portion for a circuit board at positions different from each other in a front-back direction.

Abstract: An electrical connector allowing a housing and a contact portion to be displaced relative to a mounting circuit board, parallel to a board surface, without a reinforcing plate separate from a contact member. A basal portion of a contact member is present along an upper surface of a base portion of a housing. A mounting-side elastic portion of the contact member is present along a lower surface of the base portion of the housing. A folding-back portion of the contact member is located at a rear of the base portion of the housing to connect the basal portion to the mounting-side elastic portion. First and second connecting leg portions extend downward from the mounting-side elastic portion. Each tip side of the leg portions acts as a mounting portion for a circuit board at positions different from each other in a front-back direction.

Abstract: A heat removal unit that removes heat from air in a battery pack in which a battery cell is accommodated to cool or dehumidify the air is provided. Further, a circulation route that connects the battery pack and the heat removal unit to each other to recirculate the air is provided. Furthermore, a direction controller that controls a flow direction of the air in the circulation route in opposite direction upon cooling and upon dehumidification is provided.

Abstract: An exhaust purification system includes a catalyst disposed in an exhaust path of an internal combustion engine; a fuel pump that supplies fuel to a common rail; an exhaust-side fuel injection valve that is interposed in the exhaust path so as to be located upstream of the catalyst and injects into the exhaust path the fuel supplied from the fuel pump; and estimation section that estimates a clogging degree of an injection port of the exhaust-side fuel injection valve on the basis of fluctuations in pressure of the common rail and those in revolution speed of the internal combustion engine at the time of fuel injection by the exhaust-side fuel injection valve.

Abstract: An exhaust purification system includes a catalyst disposed in an exhaust path of an internal combustion engine; a fuel pump that supplies fuel to a common rail; an exhaust-side fuel injection valve that is interposed in the exhaust path so as to be located upstream of the catalyst and injects into the exhaust path the fuel supplied from the fuel pump; and estimation section that estimates a clogging degree of an injection port of the exhaust-side fuel injection valve on the basis of fluctuations in pressure of the common rail and those in revolution speed of the internal combustion engine at the time of fuel injection by the exhaust-side fuel injection valve.