CN115940511A - Unpowered cooling method for fan motor - Google Patents
Unpowered cooling method for fan motor Download PDFInfo
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- CN115940511A CN115940511A CN202211553957.XA CN202211553957A CN115940511A CN 115940511 A CN115940511 A CN 115940511A CN 202211553957 A CN202211553957 A CN 202211553957A CN 115940511 A CN115940511 A CN 115940511A
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- Prior art keywords
- motor
- cooling
- fan
- unpowered
- fan motor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a method for unpowered cooling of a fan motor. The centrifugal fan motor cooling device utilizes the inevitable inlet negative pressure of the centrifugal fan to suck low-temperature gas into the motor, realizes unpowered and low-energy-consumption cooling of the motor, is a brand new centrifugal fan motor cooling technology, and has the best effects of ultrahigh reliability and ultralow power consumption cooling.
Description
Technical Field
The invention relates to cooling of a fan, in particular to cooling of a centrifugal fan motor.
Background
The motor cooling is the most important condition for keeping the long-term operation reliability of the motor, and is also an important research direction of motor technology. Technically, the motor cooling relates to two parts, namely a cold source and a heat exchange method, wherein the cold source is ambient cold air, and finally, the heat generated by the motor is discharged into the environment.
At present, the existing motor cooling methods include: natural cooling, and few motors can realize cooling of the motors by using low environmental temperature; the external independent cooling fan is used for directly cooling the motor shell or the interior of the motor shell by utilizing ambient cold air; cooling the inside and outside of the motor by using a coaxial fan (a radiating fan is designed on a motor shaft) and using ambient low-temperature air; a water circulation system is used for bringing out the heat of the motor through water or other heat-conducting fluids and through a motor shell, and then the heat is taken away through a heat exchanger which needs a cold source, usually a cooling fan.
The four methods have few applications of natural cooling and need low-temperature environment. The other three common cooling methods have the common characteristics that one or two power devices (a circulating water pump and a heat radiation fan) are needed, and the risk of motor cooling failure caused by fan (water pump) failure and high energy consumption exist.
Disclosure of Invention
The technical problems solved by the invention are as follows: how to avoid the failure of motor cooling caused by the failure of a fan (water pump).
In order to solve the technical problems, the invention provides the following technical scheme: a method for cooling a fan motor without power includes connecting an inlet of a fan to one end of a motor, connecting the end of the motor to the fan, and connecting the other end of the motor to the external environment.
The precondition for the air to flow in the motor is that the air can flow through the interior of the motor as long as the pressure difference is greater than the flow channel resistance inside the motor.
The inlet of the centrifugal fan must be under negative pressure, otherwise, air can not enter the fan.
Specifically, the invention utilizes the inevitable inlet negative pressure of the centrifugal fan to suck low-temperature gas into the motor, realizes the unpowered and ultralow energy consumption cooling of the motor, and is a brand new cooling technology of the centrifugal fan motor.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of a method for unpowered cooling of a fan motor.
The symbols in the figures illustrate:
10. a fan; 11. an air inlet pipe;
20. a motor; 21. an air filter;
30. a pipeline; 31. and adjusting the valve.
Detailed Description
Referring to fig. 1, in a method for unpowered cooling of a fan motor, an inlet of a fan 10 is connected to one end of a motor 20, which is connected to the fan, and the other end of the motor can communicate with the external environment.
The inlet of the centrifugal fan is a negative pressure, one end of the motor 20 is connected with the inlet of the centrifugal fan, the negative pressure is formed at the end, a pressure difference is formed between the negative pressure and the other end of the motor 20, and cold air in the external environment enters the motor and flows in the motor, so that the internal cooling of the motor of the centrifugal fan is realized.
The fan 10 is provided with an air inlet pipe 11, the air inlet pipe is connected with one end of the motor shell through a pipeline 30, and the other end of the motor shell is provided with an air inlet. The pipeline 30 connected with the inlet of the centrifugal fan realizes negative pressure at one end of the shell of the motor 20, and then cold air in the external environment enters the shell of the motor through the air inlet to cool the inside of the motor.
The duct 30 is provided with an adjusting valve 31 for adjusting the cooling air volume.
And one end of the motor 20 communicated with the external environment is provided with an air filter 21, the air filter is connected with the end part of the motor through a sealed pipeline, and filtered air is conveyed into the motor 20 through the sealed pipeline.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description herein, since various changes and modifications can be made in the details of the embodiment and the application range according to the spirit of the present invention.
Claims (4)
1. A method for cooling a fan motor without power is characterized by comprising the following steps: the import of fan (10) is connected with the one end of motor (20), and this end is connected with the fan, and the other end of motor can communicate with the external environment.
2. The method of claim 1 for unpowered cooling of a fan motor, wherein: the fan (10) is provided with an air inlet pipe (11), the air inlet pipe is connected with one end of the motor shell through a pipeline (30), and the other end of the motor shell is provided with an air inlet.
3. The method for unpowered cooling of a blower motor of claim 2 wherein: the pipeline (30) is provided with an adjusting valve (31).
4. The method for unpowered cooling of a blower motor of claim 1 wherein: an air filter (21) is arranged at one end of the motor communicated with the external environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211553957.XA CN115940511A (en) | 2022-12-06 | 2022-12-06 | Unpowered cooling method for fan motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211553957.XA CN115940511A (en) | 2022-12-06 | 2022-12-06 | Unpowered cooling method for fan motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115940511A true CN115940511A (en) | 2023-04-07 |
Family
ID=86550106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211553957.XA Pending CN115940511A (en) | 2022-12-06 | 2022-12-06 | Unpowered cooling method for fan motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115940511A (en) |
-
2022
- 2022-12-06 CN CN202211553957.XA patent/CN115940511A/en active Pending
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