Double-layer centrifugal fan
A centrifugal fan, double-layer technology, applied in the field of electrical component cooling equipment, can solve the problems of shortened service life of the motor, high input power, harsh changes, etc., to achieve the effect of saving power loss, reducing the overall quality, and expanding space utilization
Pending Publication Date: 2019-08-16
南通为华创新材料科技有限公司
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Problems solved by technology
When the motor is running, the greater the output power, the greater the current and loss, and the higher the temperature. When the motor is operated in a high temperature environment for a long time, it may cause significant changes in the physical, mechanical, chemical and electrical properties of the insulating material or Cause rapid aging, shorten the service life of the motor and increase the input power, which affects the energy consumption of the whole machine
However, there is a problem that a larger cooling fan cannot be placed in the narrow space adjacent to the existing electrical unit, which leads to a short service life of electrical components and other potential safety hazards
Method used
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[0016] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0017] Such as Figure 1-Figure 4 As shown, a double-layer centrifugal fan of the present invention includes a casing 1 and a fan blade 2, and the fan blade 2 includes a large-diameter fan blade 21 and a small-diameter fan blade 22, and the large-diameter fan blade 21 is provided with a first The fixed platform 211, the large fan blade skeleton 212 and the first fixed shaft hole 213, the small diameter fan blade 22 is provided with the second fixed platform 221, the small fan blade skeleton 222 and the second fixed shaft hole 223, the housing 1 There is a central shaft inside, the large-diameter fan blade 21 and the small-diameter fan blade 22 are clamped together u...
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The invention provides a double-layer centrifugal fan. The double-layer centrifugal fan comprises a housing and fan blades, wherein the fan blades comprise large-diameter fan blades and small-diameterfan blades; a first fixed table, a large fan blade framework and a first fixed shaft hole are arranged on the large-diameter fan blades; a second fixed table, a small fan blade framework and a secondfixed shaft hole are arranged on the small-diameter fan blades; a central shaft is arranged inside the housing; the large-diameter fan blades and the small-diameter fan blades are blocked together upand down through the central shaft; the central shaft penetrates through the first fixed shaft hole and the second fixed shaft hole; and the large-diameter fan blades and the small-diameter fan blades fix the central shaft through the first fixed table and the second fixed table. According to the double-layer centrifugal fan provided by the invention, the large-diameter fan blades and the small-diameter fan blades are arranged on the mounting frame, and the two fan blades are matched to solve a ventilating and heat-dissipating problem inside an electrical appliance assembly. One motor drive assembly drives rotary operation of the central shaft to solve the cooling problem of electrical appliance elements in two adjacent small spaces; and meanwhile, power loss is saved.
Description
technical field [0001] The invention relates to the field of cooling equipment for electrical components, in particular to a double-layer centrifugal fan. Background technique [0002] In the prior art, the small cooling fan itself is small and light in weight, so the influence of the weight of the fan itself on the motor is not obvious, and the power and temperature rise of the motor will not be significantly affected. The large and medium-sized fan, because of its larger structure and weight, can easily weigh several kilograms, which has a greater impact on the performance of the motor, and the temperature rise of the motor will also increase accordingly. When the motor is running, the greater the output power, the greater the current and loss, and the higher the temperature. When the motor is operated in a high temperature environment for a long time, it may cause significant changes in the physical, mechanical, chemical and electrical properties of the insulating materia...
Claims
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IPC IPC(8): F04D29/28F04D29/30
CPCF04D29/281F04D29/30
Inventor 孙厚勋
Owner 南通为华创新材料科技有限公司