Heat-dissipating type axial flow fan
An axial flow fan and heat dissipation technology, which is applied in the direction of mechanical equipment, non-variable pumps, machines/engines, etc., can solve the problems of shortening the service life of the motor and reducing the heat dissipation of the motor, so as to improve the heat dissipation performance and protect the The effect of the motor
Inactive Publication Date: 2015-05-20
江苏宝信空调设备制造有限公司
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Problems solved by technology
[0002] Axial flow fans are often used for ventilation in workshops. The structure of axial flow fans is relatively simple. Generally, the motor is installed inside the casing, and the air convection is carried out through the rotation of the rotor blades in the casing. However, in the past, the motor was directly installed on the machine. There will be such defects in the shell: many impurities, fibers, etc. are easy to wrap around the shaft of the motor and shorten the service life of the motor
However, if the motor is directly placed in a middle shell, the heat dissipation of the motor will be reduced.
Method used
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[0010] The present invention will be further described now in conjunction with accompanying drawing. These drawings are simplified schematic diagrams only to illustrate the basic structure of the present invention in a schematic way, so they only show the components relevant to the present invention.
[0011] Such as figure 1 As shown, a heat dissipation axial flow fan includes a casing 1 and a middle casing 2 fixed in the casing 1. A motor 3 is arranged in the middle casing 2. The output shaft of the motor 3 protrudes from the front end of the middle casing 2 and is connected to a Blade, the rear end surface of the middle shell 2 is connected with an air outlet pipe 5, one end of the air outlet pipe 5 is connected with the rear end surface of the middle shell 2, the other end of the air outlet pipe 5 protrudes from the casing 1, and the gap between the air outlet pipe 5 and the casing 1 They are connected together by welding, and the air outlet pipe 5 and the casing 1 are in...
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The invention relates to a heat-dissipating type axial flow fan. The heat-dissipating type axial flow fan comprises a fan shell and a middle shell fixed into the fan shell. The middle shell is internally provided with a motor. An output shaft of the motor extends out of the front end face of the middle shell and is connected with blades, and the back end face of the middle shell is connected with an air outlet pipe. One end of the air outlet pipe is connected with the back end face of the middle shell, and the other end of the air outlet pipe extends out of the fan shell. A plurality of air inlet holes are formed in the upper end of the middle shell, and the air inlet holes and the air outlet pipe are communicated with an inner cavity of the middle shell. The motor is arranged in the middle shell, fiber filaments and impurities in the air are prevented from directly entering the motor, and the motor is effectively protected; by means of the air inlet holes formed in the middle shell and the air outlet pipe, the inner cavity of the middle shell and an inner cavity of the fan shell are communicated, airflow circulation is formed, the heat dissipating performance of the inner cavity of the middle shell is improved, and the motor is effectively protected.
Description
technical field [0001] The invention relates to a cooling type axial flow fan. Background technique [0002] Axial flow fans are often used for ventilation in workshops. The structure of axial flow fans is relatively simple. Generally, the motor is installed inside the casing, and the air convection is carried out through the rotation of the rotor blades in the casing. However, in the past, the motor was directly installed on the machine. There will be such defects in the shell: many impurities, fiber filaments, etc. are easy to wrap around the shaft of the motor and shorten the service life of the motor. However, if the motor is directly arranged in a middle casing, the heat dissipation of the motor will be reduced. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, provide a heat dissipation axial flow fan, and improve the heat dissipation of the motor. [0004] The technical ...
Claims
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IPC IPC(8): F04D29/64F04D29/52
CPCF04D29/646F04D29/522F04D29/5806F04D29/582
Inventor 刘洪
Owner 江苏宝信空调设备制造有限公司