A blower including a volute, a motor, a blower wheel, and a box. The motor is disposed on the volute. The motor includes a spindle, a rotor assembly, a stator assembly, a motor housing, a front-end cover, a rear-end cover and a capacitor. The rotor assembly is disposed on the spindle. The stator assembly and the motor housing are integrated and sleeved on the rotor assembly. The front-end cover and the rear-end cover are installed on the two ends of the motor housing, respectively. Two ends of the spindle are supported on the bearing of the front-end cover and the bearing of the rear-end cover, respectively. The front end of the spindle extends into the volute and is connected to the blower wheel. The capacitor is disposed in a cavity formed by the box and the rear-end cover.

All electric motor unit includes an electric motor and a connection module. The electric motor includes motor coils, a stator and a rotor. The electrical connection module includes a power feed bus bar and a neutral bus bar. The power feed bus bar includes power feed collars for each phase, in which terminal portions for each phase are arranged. The neutral bus bar includes a neutral collar in which neutral terminal portions are arranged. When viewed in a direction intersecting with a second cross section, which intersects with a first cross section containing all the neutral terminal portions, the minimum distance between a second cross-section neutral terminal row on the second cross section and a second cross-section power feed terminal row on the second cross section is greater than zero.

A motor case (10) has connectors (30) fixed at motor case mounting holes (11), and an inverter case (50) has connectors (60) radially movable at inverter case mounting holes (65). The inverter case (50) is mounted on the motor case (10) so that the connectors (30, 60) fit together. A surface seal (45) is disposed on a lower surface of a flange (42) at an outer periphery of a housing (35) of the motor-side connectors (30), and is compressed elastically against an upper surface of the motor case (10) at an outer periphery of the motor case mounting holes (11). A metal pressing member (20) is fixed on the motor case (10) and presses the flange (42). An axial seal (47) is fit on the outer periphery of the housing (35) and is compressed elastically between the outer periphery and an inner periphery of the second mounting hole (65).

A connector device includes a motor-side connector 30 including a motor-side terminal 31, an inverter-side connector 60 including an inverter-side terminal 70, a motor case 10 including the motor-side connector 30, and an inverter case 50 including the inverter-side connector 60, the connectors 30, 60 being fitted together when the inverter case 50 is stacked on and fastened to the motor case 10 using bolts 120. When the fastening of the cases 10, 50 is completed, a predetermined gap is ensured between opposing surfaces 36B, 80A of the connectors 30, 60.

The present invention is configured such that an electronic control assembly is divided into a power-supply circuit unit mounted on a metal substrate, a power-conversion circuit unit mounted on a metal substrate, and a control circuit unit mounted on a resin substrate; a power-supply-connector wiring part, which supplies electric power from the power-supply circuit unit to the power-conversion circuit unit and the control circuit unit, and a signal-transmission-connector wiring part, which transmits signals to be input to or output from the control circuit unit, are embedded in a connector terminal assembly; and connector terminals of the power-supply-connector wiring part and the signal-transmission-connector wiring part, which are exposed from the connector terminal assembly, are directly connected to the corresponding circuit units.

A vehicle-use alternating current generator regulator includes an IC regulator wherein an IC chip is sealed with resin and a lead terminal for external connection protrudes from a sealing resin, and a regulator holder having a lead opposing portion that encloses an IC regulator mounting portion in which the IC regulator is mounted. A configuration is such that the lead terminal has a lead protruding portion protruding from a contact with the regulator holder, and the IC regulator is positioned by the lead protruding portion being fitted into the lead opposing portion of the regulator holder.

A system and method to harvest vibration-based energy for generation of electrical power employs a magnet that travels vertically within an axial chamber between a set of upper and lower coils of magnet wire. The magnet is supported by a spring structure specifically selected to allow the magnet to travel freely and equally vertically relative to the coils allowing the capture of energy for the generation of electrical power on both the original movement of the magnet relative to the coil and on the return movement resulting from spring load on the magnet.

A system and method to harvest vibration-based energy for generation of electrical power employs a magnet that travels vertically within an axial chamber between a set of upper and lower coils of magnet wire. The magnet is supported by a spring structure specifically selected to allow the magnet to travel freely and equally vertically relative to the coils allowing the capture of energy for the generation of electrical power on both the original movement of the magnet relative to the coil and on the return movement resulting from spring load on the magnet.

An electric power supply is disclosed having high-voltage, direct-current (HVDC) circuitry comprising one or more DC pre-charge capacitors and one or more power transistor switches, the HVDC circuitry configured to receive high-voltage, direct-current (HVDC) input power of about 320 volts and/or greater and convert the HVDC input power to multi-phase, high-voltage, alternating-current (HVAC) output power of about 320 volts and/or greater; and low-voltage, direct current (LVDC) circuitry adapted and configured to operate on low-voltage, direct-current, wherein the LVDC circuitry is configured to control and monitor the multi-phase HVAC output power. The electric power supply is further configured to operate in reverse and convert received multiphase HVAC input power to HVDC output power.

Methods of passively sampling PFAS in the environment, PFAS sorbents, apparatus and systems (apparatus plus conditions) for sampling groundwater, porewater, and surface water are described.