Low-noise industrial ceiling fan motor for cooling air path
A low-noise, motor-based technology, applied in cooling/ventilation devices, parts of pumping devices for elastic fluids, electromechanical devices, etc. Problems such as winding heat dissipation are difficult to achieve the effect of low cost of air duct structure, reduced weight, convenient disassembly and cleaning
Active Publication Date: 2021-01-01
GUANGDONG ZHAOQING DETON
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Problems solved by technology
[0003] In the traditional "motor + reducer" transmission mode, since the motor runs at high speed (usually 1000 rpm), the lifting end of the rear shaft of the motor is cooled by a fan (self-fan cooling), which solves the problem of motor temperature rise caused by motor loss and heat. Modern industrial ceiling fans do not need a reducer, and use a permanent magnet torque motor to directly drive the "direct drive" scheme of the ceiling fan blades. The motor speed is very low (usually below 100 rpm). In this case, consider "self-fan cooling" It can't solve the problem of motor heating and temperature rise at all; modern industrial ceiling fan permanent magnet direct drive motor adopts an outer rotor structure, and the stator core winding is contained inside the rotor, which makes it difficult to dissipate heat from the motor stator winding
In addition to this low-speed torque motor, more than 70% of its loss is the copper loss of the stator winding, which makes the heat dissipation of the stator winding even worse.
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[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0034] see Figure 1-10 , an embodiment provided by the present invention: a low-noise industrial ceiling fan motor for cooling air passages, including an upper end cover 1, an air inlet 2, a first-stage radial fan blade 3, a second-stage radial fan blade 4, and a stator Wheel hub 5, stator winding 6, stator core 7, rotor permanent magnet 8, iron core groove 9, lower end cover 10, air outlet 11, installation structure 12 and external heat dissipation structure...
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The invention discloses a low-noise industrial ceiling fan motor for a cooling air path, and the motor comprises an upper end cover, an air inlet, a first-stage radial fan blade, a second-stage radialfan blade, a stator hub, a stator winding, a stator iron core, a rotor permanent magnet, an iron core groove path, a lower end cover, and an air outlet. The upper end cover is internally provided with the air inlet. First-stage radial fan blades and second-stage radial fan blades are arranged on the surface of the upper end cover, the stator hub is arranged on the inner wall of the upper end cover, the stator winding is arranged on the surface of the stator hub, the stator iron core is fixedly installed in the stator winding, and the rotor permanent magnet is fixedly installed on the inner wall of the upper end cover. The design technical scheme is advanced, reasonable and effective; the IP23 protection level is ensured; the wind path structure is low in cost and easy to realize; and themotor is good in heat dissipation effect, reduces the temperature rise of the stator winding, improves the operation efficiency of the motor, increases the torque density of the motor, and reduces theweight of the motor.
Description
technical field [0001] The invention relates to the technical field of industrial ceiling fan motors, in particular to a low-noise industrial ceiling fan motor for cooling air passages. Background technique [0002] At present, permanent magnet direct drive motors of industrial ceiling fans all adopt advanced technologies such as outer rotor structure. At the same time, in order to solve the problem of low power supply fundamental frequency caused by the low-speed operation of the motor, multi-pole permanent magnet structures are often used, usually with more than tens of poles, which not only increases the power supply fundamental frequency, but also further reduces the outer rotor. The thickness of the magnetic circuit at the yoke reduces the weight of the motor. In terms of protection level, considering the application of industrial ceiling fans, IP23 protection structure is mostly used, which can not only reduce the weight of the grade end cover, but also enhance the he...
Claims
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IPC IPC(8): H02K9/06H02K5/04H02K5/10H02K1/20H02K3/24H02K7/14F04D25/08F04D29/62
CPCF04D25/088F04D29/626H02K1/20H02K3/24H02K5/04H02K5/10H02K7/14H02K9/06
Inventor金瓯黄禄财
OwnerGUANGDONG ZHAOQING DETON