F04C29/047

ELECTRIC COMPRESSOR
20180003179 · 2018-01-04 ·

An electric compressor includes a compression portion that compresses and discharges a drawn fluid, and a motor of the compression portion. The electric compressor includes an actuator that includes multiple electronic components and drives the motor, a first casing that accommodates the actuator, and a second casing that accommodates the compression portion and the motor. The second casing includes a discharge passage in which a high-temperature fluid compressed by the compression portion flows. A limiting structure that limits the heat transfer from the fluid flowing in the discharge passage is provided between one of the electronic components and the discharge passage. The limiting structure includes a seat portion that defines a gap between a bottom surface of the one of the plurality of electronic components and the discharge passage. According to the electric compressor, the heat transfer from the fluid to the electronic components can be limited.

Gerotor pump with pressure equalization

A gerotor pump having an inner rotor and an outer rotor, which is also the rotor of an electric drive, having a housing and a flange which closes the housing with the motor compartment, the rotor being arranged on a shaft and sealing against the flange at a gap, wherein, in addition to the gap, there is at least one device with which at least a partial pressure compensation takes place between the suction region of the gerotor pump and the motor compartment of the gerotor pump.

MOTOR-DRIVEN COMPRESSOR
20230007909 · 2023-01-12 · ·

A motor-driven compressor includes an inverter and a housing. The inverter includes three-phase switching elements and a holder that retains the switching elements. The holder is fixed to the housing with fastening members and is configured to push the three-phase switching elements toward a heat dissipating surface of the housing. The three-phase switching elements are arranged along a line segment that connects two of the fastening members. The holder includes a first accommodating portion that accommodates one of the three-phase switching elements that is located in the middle, and two second accommodating portions that respectively accommodate two of the three-phase switching elements that are located at opposite ends. Each of the two second accommodating portions includes a tongue-shaped contact portion that contacts the corresponding switching element. The contact portions are configured to be deformed to reduce a pushing force of the holder acting on the switching elements.

Package-type compressor

A package-type compressor includes a body unit, a controller, a casing, a first cooling air inlet, a second cooling air inlet, a cooling air outlet, a fan duct, a cooling fan, an air cooling type heat exchanger, a machine chamber, and a cooling duct. The cooling duct is provided below the fan duct, the cooling duct causing the cooling air taken in at the second cooling air inlet to flow along the controller toward the suction port of the fan duct. A vertical projection plane of the cooling fan overlaps the machine chamber and the cooling duct.

Electric compressor

An electric compressor includes a compression portion, an electric motor, a drive circuit that has a circuit board on which electronic components are mounted, a housing, and a resin member. At least one of the electronic components is held by the resin member with the resin member sandwiched between the at least one of the electronic component and the circuit board. The electronic compressor includes a first metal member that is in contact with the at least one of the electronic components, and thermally connected to the housing, a second metal member that is disposed in the resin member, and a bolt by which the first metal member and the second metal member are fastened with each other.

DEVICE FOR DRIVING A COMPRESSOR AND PROCESSES FOR MOUNTING THE DEVICE
20220332166 · 2022-10-20 ·

A device for driving a compressor of a vaporous fluid which exhibits a housing with a cooling surface and a power supply arrangement with at least one switching element, at least one PCB, as well as at least one spring element for applying a spring force on the at least one switching element. The switching element is connected to the PCB. The cooling surface and the PCB are arranged relative to one another in a direction z with spacing. The at least one switching element is arranged such that it is in contact with the housing with a first surface in the area of the cooling surface and that the at least one spring element for pressing the switching element against the cooling surface is in contact with a second surface of the switching element.

ELECTRIC COMPRESSOR, INVERTER MANUFACTURING EQUIPMENT AND INVERTER MANUFACTURING METHOD
20220333600 · 2022-10-20 ·

An electric compressor, an inverter manufacturing equipment and an inverter manufacturing method to prevent soldering defects and damage to elements, wherein an inverter includes a circuit board on which a plurality of elements are mounted and a frame coupled to the circuit board, wherein the frame includes a support plate, a side plate projecting from the support plate toward the circuit board, an array plate on which switching elements connected to the circuit board are arranged, and a connection bar connecting the support plate and the array plate.

THERMISTOR FLOW PATH
20170343098 · 2017-11-30 ·

A fluid pump includes a pump element in communication with an inlet and an outlet. Rotation of the pump element generates a suction at the inlet and pressure at the outlet. The suction and pressure cooperate to move a fluid through a fluid path. An accessory fluid path is in communication with the inlet and outlet. The accessory fluid path includes a thermistor in communication with the accessory fluid path. The thermistor monitors a temperature of the fluid within the accessory fluid path.

Gerotor Pump
20220349401 · 2022-11-03 ·

A gerotor pump having an inner rotor and an outer rotor, which is also the rotor of an electric drive, having a housing and a flange which closes the housing with the motor compartment, the rotor being arranged on a shaft and sealing against the flange at a gap, wherein, in addition to the gap, there is at least one device with which at least a partial pressure compensation takes place between the suction region of the gerotor pump and the motor compartment of the gerotor pump.

ELECTRIC DEVICE AND ELECTRIC DEVICE MANUFACTURING METHOD
20170302139 · 2017-10-19 ·

An electric device includes a case, an electric component that is provided in the case and has a main body section and a lead terminal extending from the main body section, the main body section being supported on the case, a circuit board that is provided in the case and has a connecting hole through which the lead terminal is inserted, and a guide member that has a guide hole positioned relative to the connecting hole, the lead terminal being disposed to penetrate through the guide hole.