An electric water pump with a control panel mounted in the middle of the water pump is disclosed, including a water pump volute casing, a water pump impeller, a pump cover, a water pump control panel, a rotor, a rotor cover, a housing, a rear bearing, a stator, a thrust ring, and a front bearing. The water pump volute casing is mounted on a surface at a front end of the pump cover. The water pump control panel is mounted on a surface at a rear end of the pump cover. An end opening of the rotor cover is sleeved on an outer circumference of a boss at the rear end of the pump cover.

A cover for a ceiling fixture including a top piece having an outer edge, a bottom piece having an outer edge, first and second linear coupling arrangements. The outer edges of the top and bottom pieces being joined together. An opening extending from a beginning point at a location on the top piece through a middle of the top piece outwardly toward a point along the outer edge of the top piece opposite the beginning point to an ending point on the bottom piece. The first linear coupling arrangement being coupled to the top piece and the bottom piece along the opening from the ending point of the opening toward the middle of the top piece. The second linear coupling arrangement being coupled to the top piece along the opening extending from the beginning point through the middle of the top piece toward the first linear coupling arrangement.

A liquid cooling heat exchange apparatus comprising a water block set and pump unit is provided. The water block set has a water block cover having an inlet port, cover diversion channel, cover diversion opening, cover outlet through hole and outlet port, surge directing plate having a plate cover end, and water block. The pump unit has a rotor housing having an impeller cavity comprising an inlet and outlet. The inlet and outlet ports and the cover diversion opening is at a same side, the cover outlet through hole is at an opposite side. During operation, working fluid is sucked via the inlet port, pass the cover diversion channel covered by the plate cover end, through the cover diversion opening and impeller cavity inlet, through the impeller cavity, and outlet, and cover outlet through hole, and through the water block, before exiting through the outlet port.

Provided are a fan assembly and a vacuum cleaner having same. The fan assembly includes a housing, an impeller assembly, and a driving member. At least part of the impeller assembly is accommodated in the housing. The impeller assembly includes a plurality of impellers connected in series in an airflow flowing direction of the fan assembly. The driving member is configured to drive the plurality of impellers to rotate.

Bracketry comprising an L-bracket, a T-bracket, and a joist hanger assembly, and methods of installation of the bracketry that eliminate the need to install a heavier duty electrical junction box and the difficulty of removing and reinstalling wiring in a new electrical junction box or fabricate bracing structure at the jobsite when performing a heavy ceiling fan or lighting fixture retrofit have been presented. The bracketry and installation methods are intended to reduce the cost and complexity of performing a retrofit installations.

A vacuum pump exhaust system and an exhausting method of the vacuum pump supply a purge gas to the vacuum pump such that an amount of the purge gas satisfies one of following conditions: an amount of the purge gas flowing at a higher velocity than a backflow velocity of gas exhausted by the vacuum pump on at least a part of a downstream side of the temperature sensor unit, and an amount of the purge gas having a pressure of one of an intermediate flow and a viscous flow around the temperature sensor unit. The exhaust system further includes a purge gas supply unit capable of controlling a flow rate of purge gas introduced into the vacuum pump. This configuration can prevent process gas from flowing backward so as to change the composition around the temperature sensor unit, thereby accurately measuring the temperature of the rotating portion.

An electric pump includes: an impeller; a rotor connected to the impeller; a housing accommodating the rotor; divided iron cores surrounding the housing from an outside of the housing; divided coil bobbins respectively attached to the divided iron cores; divided coils respectively wound around the divided coil bobbins; and a bus bar unit including bus bars, wherein the housing includes a bottom wall portion directly or indirectly holding a shaft portion in a standing manner, the shaft portion supports the rotor for rotation, the bottom wall portion overlaps at least a part of the divided coils in an orthogonal direction orthogonal to an axial direction of the rotor, and the bus bar unit is conductively connected to the divided coils and is held by the bottom wall portion.

A lifting oscillating fan comprises a fan base. One side of upper end of the fan base is connected to a first telescopic rod; upper end of the first telescopic rod is connected to a second telescopic rod by a movable joint; upper end of the second telescopic rod is connected to a U-shaped support; inner walls of opposite sides of the U-shaped support are connected to a rotating rod by a rotating shaft; upper end of the rotating rod is connected to a supporting rod by a bearing; a head shaking support is sheathed on upper end of the supporting rod; one side of the head shaking support is connected to a connecting plate; the head shaking support is connected to a fan head by the connecting plate; and a connecting cylinder correspondingly connected to the connecting plate is embedded in one side of the fan head.

A pump tray has a liquid pump with an inlet and outlet. A blindly matable liquid coupler fluidicly couples with the pump inlet and a blindly matable liquid coupler fluidicly couples with the pump outlet. A chassis of the pump tray has an alignment member configured to removably engage with another device and to restrict, to a limited number of degrees-of-freedom, movement of the chassis relative to the other device (e.g., a liquid pumping unit). The blindly matable liquid couplers are so physically coupled with the chassis as to inhibit movement of them relative to the chassis. A liquid pumping unit also has a chassis defining a bay configured to receive a pump tray, a liquid inlet coupler and a liquid outlet coupler, and a reservoir fluidicly coupled with the liquid inlet coupler. A blindly-matable liquid coupler fluidicly couples with the reservoir outlet and a blindly-matable liquid coupler fluidicly couples with the liquid outlet coupler. An alignment member is configured to removably engage with the pump tray and to restrict, to a limited number of degrees-of-freedom, movement of the pump tray relative to the chassis of the liquid pumping unit.

Provided are an internal and external dual-purpose air pump, an inflatable product and a lifting handle device; the internal and external dual-purpose air pump includes a machine core, including a housing having an accommodating chamber and an inflating device arranged in the accommodating chamber; the housing is provided with an air outlet and an air suction inlet respectively in the bottom and top ends, and the air outlet and the air suction inlet can both communicate with the accommodating chamber; and the housing is slidably connected with a buckling member, which can move relative to the housing, thereby the machine core is buckled into or detached from a product to be inflated through the buckling member; the inflating device works to send air flow out through the air outlet and/or suction air flow through the air suction inlet. The inflatable product includes the internal and external dual-purpose air pump.