Abstract: A blower device and a vehicular air-conditioning device including a chamber for air flow so as to cool a motor, whereby water drops are prevented from reaching the motor with higher reliability. Included is a casing having an air intake port, an air discharge port, and a discharge flow path portion communicating between the air intake port and the air discharge port; a scroll fan provided in the casing to take in the air from the air intake port and generate an air flow to the air discharge port through the discharge flow path portion; a motor rotationally driving the scroll fan; and a motor cooling unit cooling the motor. The motor cooling unit includes a chamber for partial air flow from the discharge flow path portion and a cooling duct having an opening portion which opens into the chamber at one end and supplying air to the motor.

Abstract: A heat exchanger includes: a heat exchanger body which includes an adhesive lower damping material which is provided on a lower outer peripheral surface of a lower tubular member exposed from a lower buffer material provided in each of both end portions in both end portions of the lower tubular member constituting at least a lower header and is formed such that at least a portion of each of both end portions extends between the lower tubular member and the lower buffer material; and a casing which includes first and second abutment portions against which the lower buffer material abuts and a condensate water discharge unit which discharges condensate water to an outside.

Abstract: An LLC resonant converter in which a capacitor (Cr), an inductance (Lr), and a power line between the capacitor (Cr) and the inductance (Lr), which constitute a series resonance unit, are resin-encapsulated by a resin. Because the series resonance unit that is a high voltage portion is resin-encapsulated collectively, it is possible to shorten an insulation distance even in the case of higher voltages and frequencies, and to prevent an increase in size.

Abstract: An air conditioning damper includes a damper main body provided in a casing and closing a flow path formed in the casing by a distal end portion abutting against the inner surface of the casing. The air conditioning damper closes or opens the flow path by pivoting. The air conditioning damper has a cover portion provided on front surface sides or back surface sides of a plurality of protruding portions and extending in the width direction of the damper main body beyond a side surface of the protruding portion.

Abstract: A charging device includes an AC/DC converter, a first DC/DC converter, a second DC/DC converter, and an inductance element. The AC/DC converter is connected to an external power source and configured to convert AC power into DC power. The first DC/DC converter is configured to convert a voltage the DC power outputted from the AC/DC converter and supply the resultant DC power to a first battery. The second DC/DC converter is connected in parallel to the first battery on the output side of the first DC/DC converter, and configured to convert a voltage of the DC power outputted from the first DC/DC converter and supply the resultant DC power to a second battery. The inductance element is provided between the first DC/DC converter and the second DC/DC converter, and connected in series to the first DC/DC converter and the second DC/DC converter.

Abstract: A blower device and a vehicular air-conditioning device including a chamber for air flow so as to cool a motor, whereby water drops are prevented from reaching the motor with higher reliability. Included is a casing having an air intake port, an air discharge port, and a discharge flow path portion communicating between the air intake port and the air discharge port; a scroll fan provided in the casing to take in the air from the air intake port and generate an air flow to the air discharge port through the discharge flow path portion; a motor rotationally driving the scroll fan; and a motor cooling unit cooling the motor. The motor cooling unit includes a chamber for partial air flow from the discharge flow path portion and a cooling duct having an opening portion which opens into the chamber at one end and supplying air to the motor.

Abstract: An LLC resonant converter in which a capacitor (Cr), an inductance (Lr), and a power line between the capacitor (Cr) and the inductance (Lr), which constitute a series resonance unit, are resin-encapsulated by a resin . Because the series resonance unit that is a high voltage portion is resin-encapsulated collectively, it is possible to shorten an insulation distance even in the case of higher voltages and frequencies, and to prevent an increase in size.

Abstract: A vehicular air conditioning device includes a damper and a unit case in which a shaft receiving hole is formed for supporting the damper. The damper includes a rotating shaft portion extending in an axial direction, and a plate-like first damper body extending from the rotating shaft portion. The rotating shaft portion includes a flange portion provided at only a partial region in the circumferential direction of the axis. The inner wall surface of the unit case includes an elongated protrusion, with which a first damper plate surface of the first damper body is contactable from another side in the circumferential direction, and a contact portion with which a second damper plate surface of the first damper body is contactable from one side in the circumferential direction. A radial space between a radially inward end part of the elongated protrusion and a shaft receiving hole is less than a radial size of the flange portion.

Abstract: A resonance power conversion device includes a bridge circuit, a transformer, a current detection circuit, and a control circuit. The bridge circuit includes a plurality of switching elements and receives a DC power. The transformer is connected to an output side of the bridge circuit. The current detection circuit detects a value of a current flowing through at least one of the plurality of switching elements. The control circuit determines whether or not an abnormality is occurring in the resonance power conversion device, based on the value detected by the current detection circuit at a predetermined time during a switching control.

Abstract: A heat exchanger includes: a heat exchanger body which includes an adhesive lower damping material which is provided on a lower outer peripheral surface of a lower tubular member exposed from a lower buffer material provided in each of both end portions in both end portions of the lower tubular member constituting at least a lower header and is formed such that at least a portion of each of both end portions extends between the lower tubular member and the lower buffer material; and a casing which includes first and second abutment portions against which the lower buffer material abuts and a condensate water discharge unit which discharges condensate water to an outside.

Abstract: A charging device includes an AC/DC converter, a first DC/DC converter, a second DC/DC converter, and an inductance element. The AC/DC converter is connected to an external power source and configured to convert AC power into DC power. The first DC/DC converter is configured to convert a voltage the DC power outputted from the AC/DC converter and supply the resultant DC power to a first battery. The second DC/DC converter is connected in parallel to the first battery on the output side of the first DC/DC converter, and configured to convert a voltage of the DC power outputted from the first DC/DC converter and supply the resultant DC power to a second battery. The inductance element is provided between the first DC/DC converter and the second DC/DC converter, and connected in series to the first DC/DC converter and the second DC/DC converter.

Abstract: An air conditioning damper includes a damper main body provided in a casing and closing a flow path formed in the casing by a distal end portion abutting against the inner surface of the casing. The air conditioning damper closes or opens the flow path by pivoting. The air conditioning damper has a cover portion provided on front surface sides or back surface sides of a plurality of protruding portions and extending in the width direction of the damper main body beyond a side surface of the protruding portion.

Abstract: A resonance power conversion device includes a bridge circuit, a transformer, a current detection circuit, and a control circuit. The bridge circuit includes a plurality of switching elements and receives a DC power. The transformer is connected to an output side of the bridge circuit. The current detection circuit detects a value of a current flowing through at least one of the plurality of switching elements. The control circuit determines whether or not an abnormality is occurring in the resonance power conversion device, based on the value detected by the current detection circuit at a predetermined time during a switching control.

Abstract: Provided are a layered heat exchanger that can prevent deterioration of sealing property due to deformation of sealing portions of inlet and outlet header sections when a PTC heater is sandwiched between flat heat exchanger tubes, and is pressed to be brought into close contact with the flat heat exchanger tubes, and a heat medium heating apparatus and a vehicle air-conditioning apparatus using the layered heat exchanger.

Abstract: The present invention provides a blower device and a vehicular air-conditioning device including a chamber taking therein a part of the air through a flow path portion so as to cool a motor, whereby water drop is prevented from reaching the motor with higher reliability. This air blower includes: a casing (11) including an air intake port (23), an air discharge port, and a discharge flow path portion (31) communicating between the air intake port (23) and the air discharge port; a scroll fan (22) provided in the casing (11) so as to take in the air from the air intake port (23) and generate an air flow to the air discharge port through the discharge flow path portion (31); a motor (21) rotationally driving the scroll fan (22); and a motor cooling unit (50) cooling the motor (21).

Abstract: A centrifugal blower comprises: an impeller (2) provided with blades (12); a casing (3) that houses the impeller (2), surrounds the impeller (2) on an outer side of the impeller (2) in a radial direction of the impeller (2) to form a spiral flow passage (C1) through which air (AR) can flow, and is provided with a nose section (30) forming a start point (S) of the spiral flow passage (C1) and an end point (E) of the spiral flow passage (C1) where one turn of the spiral flow passage (C1) from the start point (S) terminates; a drive unit (4) that rotates the impeller (2) about the center axis (O) of the impeller (2); and a vane (5) that is provided on the bottom plate (22) of the casing (3), divides the spiral flow passage (C1) in the radial direction of the impeller (2), and extends along a circumferential direction of the impeller (2). The rear edge (6) of the vane (5) is located upstream from the nose section (30) in a primary flow direction (DI) of the spiral flow passage (C1).

Abstract: This vehicular air conditioning device includes: an evaporator; a heater core; a unit case including a cooling space configured to accommodate the evaporator, a heating space connected to the cooling space and configured to accommodate the heater core, an air mixing space connected to the cooling space and the heating space, and a foot outlet flow channel; an air mixing damper provided among the cooling space, the heating space, and the air mixing space, and configured to rotate between a maximum cooling position (Pc) and a maximum heating position (Ph) to adjust a ratio of air to be introduced into the air mixing space; and a foot switching damper capable of partitioning the air mixing space and the foot outlet flow channel. The air mixing damper includes a reheat preventing damper having a principal plane. The foot switching damper does not protrude further toward the air mixing space side than an imaginary plane including the principal plane.

Abstract: A vehicular air conditioning device includes a damper and a unit case in which a shaft receiving hole is formed for supporting the damper. The damper includes a rotating shaft portion extending in an axial direction, and a plate-like first damper body extending from the rotating shaft portion. The rotating shaft portion includes a flange portion provided at only a partial region in the circumferential direction of the axis. The inner wall surface of the unit case includes an elongated protrusion, with which a first damper plate surface of the first damper body is contactable from another side in the circumferential direction, and a contact portion with which a second damper plate surface of the first damper body is contactable from one side in the circumferential direction. A radial space between a radially inward end part of the elongated protrusion and a shaft receiving hole is less than a radial size of the flange portion.

Abstract: A power supply device includes a plurality of power converters connected in parallel to each other and each configured to output power to a load after converting voltage of input power into output voltage, and a controller configured to change a number of one or more power converters to be put into operation out of the plurality of power converters based on total output power to the load. The controller changes timing of changing the number of the one or more power converters to be put into operation depending on the load regulation of the load.

Abstract: This vehicular air conditioning device includes: an evaporator; a heater core; a unit case including a cooling space configured to accommodate the evaporator, a heating space connected to the cooling space and configured to accommodate the heater core, an air mixing space connected to the cooling space and the heating space, and a foot outlet flow channel; an air mixing damper provided among the cooling space, the heating space, and the air mixing space, and configured to rotate between a maximum cooling position (Pc) and a maximum heating position (Ph) to adjust a ratio of air to be introduced into the air mixing space; and a foot switching damper capable of partitioning the air mixing space and the foot outlet flow channel. The air mixing damper includes a reheat preventing damper having a principal plane. The foot switching damper does not protrude further toward the air mixing space side than an imaginary plane including the principal plane.