Cross-flow and centrifugal hybrid type fan

A hybrid and cross-flow technology, applied in the field of fans and cross-flow centrifugal hybrid fans, can solve the problems of axial length limitation, low efficiency and large pressure loss.

CN108980079AInactive Publication Date: 2018-12-11大连碧蓝节能环保科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2018-12-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a cross-flow and centrifugal hybrid type fan and relates to fans. The cross-flow and centrifugal hybrid type fan comprises a base part and an impeller part. During the operation of the hybrid type fan, a motor drives the impeller of the impeller part to rotate, part of air flow entering the inner cavity of the impeller is accelerated in the flowing process penetrating the cross-flow section of the impeller, and the part of air flow is decelerated and pressurized in the inner cavity of a cross-flow volute to generate high-pressure air flow; the other part of air flow entering the inner cavity of the impeller flows into an impeller centrifugal section along the axial direction, the air flow enters the inner cavity of a centrifugal volute from the blade duct of the impeller centrifugal section under the effect of centrifugal force, and the air flow is decelerated and pressurized in the inner cavity of the centrifugal volute to generate high-pressure air flow; the pressure of the air flow discharged by the inner cavity of the centrifugal volute is larger than that of the air flow discharged by the inner cavity of the cross-flow volute, and the overall output airflow pressure of the hybrid type fan is increased. The hybrid type fan is unlimited by axial length, large in output air flow pressure and high in efficiency.
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Description

technical field

[0001] The invention relates to a cross-flow centrifugal hybrid fan, which relates to a fan, in particular to a hybrid fan with both a cross-flow fan structure and a centrifugal fan structure. Background technique

[0002] The types of fans commonly used in home appliances include axial fans, cross-flow fans, and centrifugal fans. Its typical application product examples are vertical fans using axial fans, range hoods using centrifugal fans, and indoor units of air conditioners using cross-flow fans. Axial flow fans are characterized by large flow, low pressure, and high noise. The structure of the axial flow fan is simple.

[0003] The cross-flow fan is characterized by moderate flow, moderate pressure and low noise. The axial length of the cross-flow fan is not limited, and the airflow at the air outlet is evenly distributed along the axial direction of the cross-flow fan. Compared with the axial flow fan, the airflow of the cross-flow fan flows through...

Examples

Embodiment Construction

[0040] The present invention is further described below in conjunction with accompanying drawing.

[0041] refer to figure 1 , figure 2 , Figure 18 , Figure 19 , The hybrid fan includes a base part and an impeller part. The impeller part is installed in the inner cavity of the machine base part, and the motor is installed at one axial end of the machine base part. The axial length of the centrifugal guide volute 2 of the base part is shorter than the axial length of the base 1 of the base part, the number of the centrifugal guide volute 2 of the base part is at least one, and the base 1 has several axial distributions The through-flow volute plate 23 and at least one centrifugal volute plate-57 form a centrifugal volute inner cavity 59 between the centrifugal guide volute 2 and the centrifugal volute plate-57, and the radial inner side of the through-flow volute plate 23 forms a through-flow flow volute cavity 46 . The inner cavity of the through-flow volute 46 commun...