Outlet housing for range hood

[0040] Example one:

[0041] Such as Figure 1-5 As shown, this embodiment provides an air outlet hood for a range hood. The air outlet hood 2 includes a lower cover 21 connected to the range hood 1, a mounting ring 22 connected to the air outlet pipe 3, and a stopper that can be turned and opened. The valve leaf 23 of the return valve, the lower cover 21 and the mounting ring 22 form the air outlet cavity 24 of the air outlet hood, the bottom of the lower cover 21 forms the air inlet opening 25 of the air outlet hood 2, and the mounting ring The top of 22 forms the air outlet opening 26 of the air outlet hood 2. The valve blades 23 are two relatively rotating valve blades. The two valve blades 23 are connected to the air outlet cavity 24 through the rotating shaft 4, and the two valves The blades 23 can be turned to open or close respectively to conduct or block the air inlet opening 25 and the air outlet opening 26. The two valve blades 23 can form a relative valve blade angle α,

[0051] Embodiment two:

[0052] The difference between this embodiment and the first embodiment is that the positive and negative conductive electrode plates are glued and fixed to the valve leaf.

[0053] Such as Image 6 As shown, the positive and negative conductive electrode plates 27, 28 and their corresponding valve blades 23 are fixed by gluing, and the two valve blades 23 are respectively provided with overflow glue matching the positions of the positive and negative conductive electrode plates 27, 28 Hole 5, this arrangement improves the uniformity of the glue overflow, and the thickness of the adhesive layer between the valve leaf 23 and the positive and negative conductive electrode plates is uniform, which is conducive to the generation of capacitance between the positive and negative conductive electrode plates. It is glued and fixed through the glue overflow hole 5. The valve leaf 23 and the conductive electrode plate enhance the installation reliability of the positive

[0054] Example three:

[0055] The difference between this embodiment and the first embodiment is that the positive and negative conductive electrode plates are clamped and fixed to the valve leaf.

[0056] Such as Figure 7 As shown, the positive and negative conductive electrode plates 27, 28 and their corresponding valve blades 23 are fixed by clamping, and the two valve blades 23 are respectively provided with clamping grooves 6, and the positive and negative conductive electrode plates 27, 28 Installed in the slot 6, when installing, install the positive conductive electrode plate 27 and the negative conductive electrode plate 28 into the slot 6 respectively, and limit and fix the position of the positive and negative conductive electrode plates through the buckle 10 , So that the positive and negative conductive electrode plates are firmly clamped in the card slot 6 to prevent the electrode plates from loosening.