摘要:
A motor-driven compressor is provided with a power supply terminal secured to a metallic housing and electrically connected to a power source. The power supply terminal includes a base secured to the metallic housing, a conductive element secured to the base, and an insulator for insulating the conductive element from the base. A portion of the conductive element and a portion of the insulator that are located inside the metallic housing are covered with an insulating resinous cover.
摘要:
A motor-driven compressor is driven by a driving device via a single-circuit external wiring system. The motor-driven compressor includes a closed vessel, a compression mechanism accommodated in the closed vessel, and an electric motor accommodated in the closed vessel for driving the compression mechanism. The electric motor includes three-phase stator windings each having two parallel circuits.
摘要:
A driving device for a motor-driven compressor including: (a) a motor-driven compressor for compressing a refrigerant; (b) a DC power supply serving as a power source of the compressor; (c) a capacitor connected in parallel with the DC power supply; (d) a switch provided between the DC power supply and the capacitor, and closed when the compressor is operated and opened when the compressor is stopped; (e) a driver for converting electric power supplied from the DC power supply via the switch and capacitor into driving power for the compressor, and for outputting the driving power thereto; (f) a controller for instructing the driver to operate or stop the compressor; and (g) a discharge control unit provided in the driver and controlling the driver so that the capacitor is discharged using the compressor as a medium, after the instruction to stop the compressor has been given.
摘要:
A plurality of connection terminals are covered with a housing so that the plurality of connection terminals are collectively treated by handling of the housing. The housing is put over and fitted to a case of a compressor while connecting the connection terminals to connection pins for external wiring through an opening of the housing. With a seal member arranged in between, the opening is pressed against an external face of the case to conduct sealing between them.
摘要:
An inverter-integrated electric compressor is structured to include a suction refrigeration path (61) for intensively flowing a sucked refrigerant (30) therethrough, such that the suction refrigerant path (61) is provided only in the vicinity of a switching device module (105), which is a main heat source in an inverter device portion (101), so that the sucked refrigerant is concentrated in only the vicinity of the switching device module, which is the main heat source in the inverter device portion. This enables effectively cooling the inverter device portion, with the sucked refrigerant, without involving adjustments of operating conditions for a refrigeration cycle.
摘要:
An inverter-device built-in type electric compressor includes a compressor terminal and a direct-mounting connector, which connects the inverter-device to an external circuit, at an electric compressor side. The direct-mounting connector faces toward the electric compressor and is placed in parallel with a center axis of the electric compressor. A harness connector wired from a motor of the electric compressor is detachably and electrically connected to the compressor terminal, and the electric compressor is detachably and mechanically connected to the inverter-device.
摘要:
An air conditioner includes a direct-current (DC) power supply, a compressor, and a compressor driving device that converts a current supplied from the DC power supply into an alternate-current (AC) for driving the compressor. The DC power supply energizes the driving device through a center conductor and an outer conductor of a shield cable. This structure allows the driving device not to include a capacitor for smoothing a power current, and to suppress surge voltages and electromagnetic-wave radiation, thus providing an air-conditioner including a compact size and light-weighted compressor driving device.
摘要:
In an air conditioner having a control unit receiving a power from a switching power supply, a supplied voltage for the control unit is reduced to a possible lowest voltage for the unit to operate. This arrangement provides the air conditioner with less electromagnetic wave noise of the switching power supply, with a quick check and repair, and with having a motor-driven compressor quick start.
摘要:
An inverter-device built-in type electric compressor includes a compressor terminal and a direct-mounting connector, which connects the inverter-device to an external circuit, at an electric compressor side. The direct-mounting connector faces toward the electric compressor and is placed in parallel with a center axis of the electric compressor. A harness connector wired from a motor of the electric compressor is detachably and electrically connected to the compressor terminal, and the electric compressor is detachably and mechanically connected to the inverter-device.
摘要:
The electrically driven compressor integrally formed with an inverter device contains compression mechanism section (28); motor (31) as a power source of the compression mechanism section; metal housing (32) for accommodating the compression mechanism section and the motor; inverter device (20), which is disposed outside the metal housing, for supplying electricity to the motor; and electric connection terminal (8) for electrically connecting between an inside and an outside of the metal housing. The electric connection terminal has pin terminal (10) formed of a metal with low thermal conductivity and a metal with high thermal conductivity plated on the metal with low thermal conductivity. The pin terminal is electrically connected to the inverter device by solder (9).