An axial flow fan and an outdoor unit of an air conditioner
A technology of axial flow fan and air guide ring, which is applied in the direction of air conditioning system, machine/engine, mechanical equipment, etc., and can solve the problem of increasing the air volume, etc., to increase the air volume, increase the air volume, and avoid blockage Effect
Active Publication Date: 2020-12-29
QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The invention provides an axial flow fan and an outdoor unit of an air conditioner, which are used to solve the problem of how to reduce the blade tip vortex generated when the axial flow fan rotates, so as to increase the air volume and reduce noise at the same time
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0048] Embodiment 1: The air guiding ring and the casing are integrally formed. In this way, the number of components included in the outdoor unit of the air conditioner can be reduced, and the assembly complexity of the outdoor unit of the air conditioner can be reduced.
Embodiment 2
[0049] Embodiment 2: The air outlet end of the air guide ring is provided with a connecting flange, and the air outlet end of the air guide ring is connected with the edge of the casing at the air outlet through the connecting flange. This structure is simple and easy to implement.
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The invention discloses an axial flow fan and an outdoor unit of an air conditioner, and relates to the technical field of refrigeration equipment. It is used to solve the problem of how to reduce the blade tip vortex generated by the axial flow fan when it rotates, so as to increase the air volume and reduce the noise at the same time. The axial flow fan of the present invention includes an air guide ring and an axial fan body located in the air guide ring, and the gap between the outer edge of the axial fan body and the inner wall of the air guide ring is less than or equal to 11mm, so The width of the wind guide ring along its central axis direction is 0.4 to 0.6 times the width of the blades of the axial flow fan body along the central axis direction of the air guide ring, and the air outlet end of the wind guide ring is connected to the The distance between the air outlet ends of the blades of the axial flow fan body along the central axis of the air guiding ring is -5 mm to 5 mm. The axial flow fan of the present invention is used for the outdoor unit of an air conditioner.
Description
technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to an axial flow fan and an outdoor unit of an air conditioner. Background technique [0002] The air volume and noise of the outdoor unit of an air conditioner have always been important indicators related to product performance and comfort. In the outdoor unit of an air conditioner, the axial fan is a key component that affects the air volume and noise. [0003] The axial flow fan includes an air guiding ring and an axial fan main body. The air guiding ring is fixed on the casing of the outdoor unit of the air conditioner. The main body of the axial fan is arranged in the air guiding ring. The axes are collinear, and when the main body of the axial flow fan rotates, a pressure difference is generated between the pressure surface and the suction surface of the blade of the axial flow fan main body. On the suction side, the leakage airflow and the main airflow in th...
Claims
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IPC IPC(8): F04D25/08F04D29/54F04D29/66F24F1/38
CPCF04D25/08F04D29/541F04D29/663F24F1/38
Inventor 张荣海何明顺张标
Owner QINGDAO HISENSE HITACHI AIR CONDITIONING SYST