Pneumatic structure, compressor and dust collector
A shell and impeller technology, which is applied in compressors, vacuum cleaners, and aerodynamic structures, can solve problems such as the poor flow field at the inlet end of the impeller, and achieve the effects of overcoming the relatively poor flow field, improving efficiency, and improving the distribution of the flow field
Pending Publication Date: 2022-07-08
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0003] Therefore, the present invention provides an aerodynamic structure, which can overcome the disadvantage of relatively poor flow field at the inlet end of the impeller in the case of low flow and high vacuum in the existing vacuum cleaner
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[0023] see in combination Figures 1 to 3 As shown, according to an embodiment of the present invention, an aerodynamic structure is provided, comprising: a casing 1 and a guide member 2, one end of the casing 1 is an air inlet, the other end is an air outlet, and the guide member 2 is located in the casing 1 The air inlet end of the casing 1 is provided with a rotatable impeller 3, the guide member 2 includes guide vanes 21, the guide vanes 21 are static parts, and the guide vanes 21 are located on the inflow path of the impeller 3, and the guide vanes 21 are located on the inflow path of the impeller 3. The flow vane 21 is curved along its height direction, the deflection of the guide vane 21 is swept forward, and the bending direction is forward inclination. . In this technical solution, the problem that the flow field at the inlet end of the impeller 3 is relatively poor is solved by disposing a guide member 2 at the inlet end of the impeller 3. The guide member 2 include...
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According to the pneumatic structure, one end of a shell is an air inlet, the other end of the shell is an air outlet, a flow guide component is located at the air inlet end of the shell, a rotatable impeller is arranged in the shell, the flow guide component comprises flow guide blades, and the flow guide blades are static components; the flow guide blades are arranged on the impeller and located on a flow inlet path of the impeller, the flow guide blades are bent in the height direction of the flow guide blades, the flow guide blades are bent forward and inclined forward, and the bending direction of the flow guide blades is opposite to the rotating direction of the impeller in the axis direction of the impeller. According to the impeller, when the impeller rotates, air flow enters the impeller after being guided by the guide vanes, the guide vanes can enable the air flow to rotate, and the rotating direction of the air flow is opposite to that of the impeller, so that the defect that the flow field at the inlet end of the impeller is relatively poor is overcome, and the efficiency of the impeller under the small-flow working condition is improved; and the maximum suction power of the dust collector is improved.
Description
technical field [0001] The invention belongs to the technical field of vacuum cleaners, and in particular relates to a pneumatic structure, a compressor and a vacuum cleaner. Background technique [0002] Small compressors are more and more widely used in home appliances. Among them, the compressors for vacuum cleaners have the characteristics of small pressure ratio, small volume, small working point flow, and relatively small working flow range. The existing vacuum cleaners are in the case of small flow and large vacuum However, the flow field at the inlet end of the impeller is relatively poor, which leads to further deterioration of the flow field inside the impeller, resulting in insufficient suction power of the vacuum cleaner at small flow, and the suction power of the vacuum cleaner usually at the minimum flow is the highlight of the product, which also symbolizes the vacuum cleaner. Therefore, improving the efficiency of the design point flow and the small flow area...
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IPC IPC(8): F04D29/40F04D29/26
CPCF04D29/403F04D29/26Y02E10/72
Inventor 杨国蟒宣卫豪王越
Owner GREE ELECTRIC APPLIANCES INC