Abstract: The present disclosure provides an airway device. The airway device includes: a main housing provided with a suction port and a blow port; an air passage having a cylindrical shape, and having an inner circumferential surface defining an air flow path from the suction port to the blow port; and a lighting unit for illuminating the inner circumferential surface. The airway device can be used alone or together with blower and the like to form a ceiling mounted ventilation fan. Compared with the prior art, the ventilating fan device has the advantages of small air pressure loss, high ventilation efficiency, high lighting efficiency and convenient maintenance.

Abstract: The present disclosure provides an airway device. The airway device includes: a main housing provided with a suction port and a blow port; an air passage having a cylindrical shape, and having an inner circumferential surface defining an air flow path from the suction port to the blow port; and a lighting unit for illuminating the inner circumferential surface. The airway device can be used alone or together with blower and the like to form a ceiling mounted ventilation fan. Compared with the prior art, the ventilating fan device has the advantages of small air pressure loss, high ventilation efficiency, high lighting efficiency and convenient maintenance.

Abstract: The present disclosure provides an electrical function cassette having a waterproof function. The electrical function cassette includes: a function box for housing an electrical component, and a waterproof portion in a hollow rectangular parallelepiped shape, wherein a first surface of the waterproof portion is provided with a wiring opening corresponding to a wiring port, and a second surface of the waterproof portion adjacent to the first surface is provided with an insertion opening for inserting a lead wire into the electrical function cassette, such that water droplets cannot flow along the lead wire in a straight line into the electrical function cassette, thereby improving the safety and reliability of the whole product.

Abstract: A spring fixing structure includes a louver provided with a stopping member and a louver fixation portion thereon, and a spring disposed on the louver, the spring including a spring fixation portion fixed on the louver fixation portion and two arcuate spring legs. The stopping member is provided with a retaining mechanism for retaining the spring. The spring of the present invention can be easily mounted on the louver and prevented from being deformed.

Abstract: The present disclosure provides an electrical function cassette having a waterproof function. The electrical function cassette includes: a function box for housing an electrical component, and a waterproof portion in a hollow rectangular parallelepiped shape, wherein a first surface of the waterproof portion is provided with a wiring opening corresponding to a wiring port, and a second surface of the waterproof portion adjacent to the first surface is provided with an insertion opening for inserting a lead wire into the electrical function cassette, such that water droplets cannot flow along the lead wire in a straight line into the electrical function cassette, thereby improving the safety and reliability of the whole product.

Abstract: A spring fixing structure includes a louver provided with a stopping member and a louver fixation portion thereon, and a spring disposed on the louver, the spring including a spring fixation portion fixed on the louver fixation portion and two arcuate spring legs. The stopping member is provided with a retaining mechanism for retaining the spring. The spring of the present invention can be easily mounted on the louver and prevented from being deformed.

Abstract: A lighting device for a ventilating fan comprising a power pack module and a light-emitting module composed of a lighting louver and a radiator, wherein first positioning lugs projected out of a horizontal projection plane of the power pack module are formed on the top of the power pack module and fixed on the light-emitting module by screws; and a through hole which a cable, used for supplying power for a light-emitting unit, runs through is respectively formed on a side face of the radiator making contact with the power pack module and a side face of the power pack module making contact with the radiator. The lighting device for the ventilating fan further comprises hooks formed on the radiator and a second positioning lug formed on the power pack module, wherein the hooks and the second positioning lug are used for fixing the lighting device on the ventilating fan.

Abstract: A lighting device for a ventilating fan comprising a power pack module and a light-emitting module composed of a lighting louver and a radiator, wherein first positioning lugs projected out of a horizontal projection plane of the power pack module are formed on the top of the power pack module and fixed on the light-emitting module by screws; and a through hole which a cable, used for supplying power for a light-emitting unit, runs through is respectively formed on a side face of the radiator making contact with the power pack module and a side face of the power pack module making contact with the radiator. The lighting device for the ventilating fan further comprises hooks formed on the radiator and a second positioning lug formed on the power pack module, wherein the hooks and the second positioning lug are used for fixing the lighting device on the ventilating fan.