A low-noise industrial ceiling fan motor for cooling air passage
A low-noise, motor-based technology, applied in cooling/ventilation devices, components of pumping devices for elastic fluids, mechanical equipment, etc. Problems such as winding heat dissipation are difficult to achieve the effect of low cost of air duct structure, reduction of motor weight, and convenient disassembly and cleaning
Active Publication Date: 2021-08-31
GUANGDONG ZHAOQING DETON
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
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.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[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...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a low-noise industrial ceiling fan motor for cooling air passages, which comprises an upper end cover, an air inlet, a first-stage radial fan blade, a second-stage radial fan blade, a stator hub, a stator winding, a stator core, and a rotor Permanent magnet, iron core groove, lower end cover and air outlet, the inside of the upper end cover is provided with an air inlet, the surface of the upper end cover is provided with a first-level radial fan blade and a second-level radial fan blade, and the upper end cover The inner wall of the upper end cover is provided with a stator hub, the surface of the stator hub is provided with a stator winding, the inside of the stator winding is fixed with a stator core, and the inner wall of the upper end cover is fixed with a rotor permanent magnet. The design technical scheme of the present invention is advanced, reasonable and effective; the IP23 protection level is guaranteed; the cost of the air path structure is low and easy to realize; the heat dissipation effect is good, the temperature rise of the stator winding is reduced, the operating efficiency of the motor is improved, and the torque density of the motor is increased. Reduced motor weight.
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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & AuthorityPatents(China)
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