Abstract: A ventilator illumination device, including a light-emitting module for housing a light-emitting unit and a power box module for housing a power supply supplying direct current for the light-emitting unit, wherein an anti-reversal installation structure is provided on the light-emitting module and the power box module, the anti-reversal installation structure limiting the light-emitting unit to be installed only in a state that the light-emitting unit faces towards one predetermined direction. The illumination device is easy to install and prevents inversion of the light-emitting unit, thus ensuring proper brightness of the light irradiated by the light-emitting unit into the room.

Abstract: A ventilating device includes a rectangular frame, a louver, an adapter, a helix shell and a circuit board box. A mounting base at a bottom surface of the helix shell is configured for installation of a plurality of functional units thereon. The mounting base is provided with a base circuit board for interfacing with the functional units, and the circuit board box is coupled to the mounting base by a lead wire. Both the circuit board box and the mounting base include a hole, through which the lead wire passes. These holes are arranged in a linear manner in an up-down direction arranged at the side towards an air outlet. The plurality of functional units are configured to be freely assembled or disassembled individually to or from the mounting base.

Abstract: A fire damper for a ventilating fan includes a shutter and a frame provided with a flange. An opening is defined through the flange. The frame is further provided with a movable component for opening or closing the preformed opening.

Abstract: A fire damper for a ventilating fan includes a shutter and a frame provided with a flange. A preformed opening is provided on the frame. The frame is further provided with a movable component for opening or closing the preformed opening. This has the advantage of being able to share parts with others.

Abstract: A fire damper for a ventilating fan includes a shutter and a frame provided with a flange. An opening is provided on the frame. The frame is further provided with a movable component for covering or uncovering the opening.

Abstract: A ventilator illumination device, including a light-emitting module for housing a light-emitting unit and a power box module for housing a power supply supplying direct current for the light-emitting unit, wherein an anti-reversal installation structure is provided on the light-emitting module and the power box module, the anti-reversal installation structure limiting the light-emitting unit to be installed only in a state that the light-emitting unit faces towards one predetermined direction. The illumination device is easy to install and prevents inversion of the light-emitting unit, thus ensuring proper brightness of the light irradiated by the light-emitting unit into the room.

Abstract: A packing structure including an external packing carton consisting of a top surface, a bottom surface and side surfaces connected with one another and one or more small packing cartons, wherein at least one side surface of the external packing carton is provided with one or more folding portions, each folding portion consisting of one or more folding pieces which are folded to form an opening with a size mating with the size of the periphery of the small packing carton. The packing structure of the present disclosure is easy to be transported, cost reducing and friendly to the environment.

Abstract: A ventilation fan mounting structure includes a bracket assembly which is to be mounted to opposite two side flanges of a ventilation fan and includes a first bracket and a second bracket each formed in a U shape, wherein each of the first bracket and the second bracket includes two side members and a connection member connecting the two side members, the connection members and the side members of the first and second brackets are connected to each other by shafts, the side members are rotatable around the shafts, and a position-limit portion is disposed to the connection member to limit a rotation range of the side member. With the ventilation fan mounting structure according to the embodiments of the present invention, the mounting of the ventilation fan can be simply and conveniently completed even if the distance between the ceiling and the roof is small.

Abstract: A packing structure including an external packing carton consisting of a top surface, a bottom surface and side surfaces connected with one another and one or more small packing cartons, wherein at least one side surface of the external packing carton is provided with one or more folding portions, each folding portion consisting of one or more folding pieces which are folded to form an opening with a size mating with the size of the periphery of the small packing carton. The packing structure of the present disclosure is easy to be transported, cost reducing and friendly to the environment.

Abstract: A ventilation fan mounting structure includes a bracket assembly which is to be mounted to opposite two side flanges of a ventilation fan and includes a first bracket and a second bracket each formed in a U shape, wherein each of the first bracket and the second bracket includes two side members and a connection member connecting the two side members, the connection members and the side members of the first and second brackets are connected to each other by shafts, the side members are rotatable around the shafts, and a position-limit portion is disposed to the connection member to limit a rotation range of the side member. With the ventilation fan mounting structure according to the embodiments of the present invention, the mounting of the ventilation fan can be simply and conveniently completed even if the distance between the ceiling and the roof is small.

Abstract: A ventilating device includes a rectangular frame, a louver, an adapter, a helix shell and a circuit board box. A mounting base at a bottom surface of the helix shell is configured for installation of a plurality of functional units thereon. The mounting base is provided with a base circuit board for interfacing with the functional units, and the circuit board box is coupled to the mounting base by a lead wire. Both the circuit board box and the mounting base include a hole, through which the lead wire passes. These holes are arranged in a linear manner in an up-down direction arranged at the side towards an air outlet. The plurality of functional units are configured to be freely assembled or disassembled individually to or from the mounting base.

Abstract: A fire damper for a ventilating fan includes a shutter and a frame provided with a flange. A preformed opening is provided on the frame. The frame is further provided with a movable component for opening or closing the preformed opening. This has the advantage of being able to share parts with others.