CN2588082Y - Safety-increased axial flow blowing fan for explosion-resisting frequency-changing speed-adjusting motor - Google Patents
Safety-increased axial flow blowing fan for explosion-resisting frequency-changing speed-adjusting motor Download PDFInfo
- Publication number
- CN2588082Y CN2588082Y CN 02275211 CN02275211U CN2588082Y CN 2588082 Y CN2588082 Y CN 2588082Y CN 02275211 CN02275211 CN 02275211 CN 02275211 U CN02275211 U CN 02275211U CN 2588082 Y CN2588082 Y CN 2588082Y
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- motor
- explosion
- fan
- utility
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Abstract
The utility model relates to a safety-increasing axial flow blowing fan for an explosion-resisting frequency-changing speed-adjusting motor, which is composed of a fan housing, fan blades, a dragging motor and a bracket. The utility model is characterized in that an outer rotor structure is adopted by the dragging motor, the fan blades are fixed on a rotor of the dragging motor, a stator is fixed on a shaft, and a gap between the fan blades and the fan housing is larger than one millimeter. The utility model has the advantages that the generation of dangerous spark is prevented because the gap between the fan blades and the fan housing is larger than one millimeter, and detonation does not take place. In this way, the temperature rise of the motor is 10 DEG C lower than an ordinary motor to cause the frequency-changing speed-adjusting motor which is widely used in the relevant field to provide safety.
Description
Technical field:
The utility model relates to explosion-proof variable frequency variable speed motor axial-flow blower.
Technical background:
Frequency control motor is a kind of energy-conserving product, has obtained using widely in industries such as plastics machinery, weaving, cement industry, cable equipment and metallurgy, mines in recent years.And being mainly used in petrochemical industry, mine etc., the explosion-proof variable frequency variable speed motor has in the explosion hazard area.Frequency control motor particularly when low speed, generates heat owing to motor radiating is bad by changing the frequency adjustment rotating speed of motor of input power supply, causes the temperature rise of motor, and this just need add blower fan, carries out forced ventilation, heat radiation.Derive thus, the explosion-proof variable frequency variable speed motor also must adopt the axial-flow blower of blasting resistance structure.
Summary of the invention:
The purpose of this utility model provides a kind of explosion-proof variable frequency variable speed motor INCREASEDSAFETY axial-flow blower that adopts blasting resistance structure.
The purpose of this utility model is achieved in that a kind of explosion-proof variable frequency variable speed motor INCREASEDSAFETY axial-flow blower, it is made of fan housing, fan blade, dragging motor and support, it is characterized in that said dragging motor is to adopt outer-rotor structure, said fan blade is to be fixed on the rotor of dragging motor, stator is fixed on the axle, gap between said fan blade and the fan housing is greater than 1mm or according to the electric apparatus for explosive atmospheres rules, and the blower fan dragging motor must be made blasting resistance structure.
Good effect of the present utility model:
1, since the utility model in fan blade and the gap between the fan housing greater than 1mm, to prevent producing dangerous spark, set off an explosion, thus the assurance electric machine temperature rise lower 10 ℃ than common electric machine;
2, performance of the present utility model satisfies GB3836---2000 " the general requirement of explosive gas atmosphere electrical installation section 1 " and the GB3836.3---2000 " relevant requirements of explosive gas atmosphere electrical installation the 3rd part INCREASEDSAFETY " e "; The utility model motor rotation blockage time is greater than 5 seconds, inrush current/rated current≤10, and power range 60W～1.1KW is applicable to the explosion-proof variable frequency variable speed motor of H90～H5000 seat No..
3,,, the utility model provides safety guarantee so making frequency control motor be extensive use of in association area because the utility model is the auxiliary products of explosion-proof variable frequency variable speed motor, and frequency control motor is compared aspect energy-conservation with common electric machine has remarkable advantages.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is described in further details
Dragging motor 3 is fixed on the fan housing 1 by support 2.Dragging motor adopts external rotor 6 structures, fan blade 4 is fixed on the rotor, and stator 7 is fixed on the axle, and stator lead is drawn on the tenminal block that is connected in the terminal box by axis hole, lead-in wire connects a part glue seal structure with axle, causes the explosion risk of working environment with the spark that prevents to hinder for some reason generation.When stator 7 passes to three Ac, make rotor 6 rotations by the electromagnetic induction effect, rotor drives fan blade 4 rotations, and wind is that the direction of arrow is blown into by wind inlet, and frequency control motor is cooled off.Motor of the present utility model adopts the IP44 security level.Terminal box adopts the IP54 security level.
Claims (1)
1, a kind of explosion-proof variable frequency variable speed motor INCREASEDSAFETY axial-flow blower, it is made of fan housing, fan blade, dragging motor and support, it is characterized in that said dragging motor is to adopt outer-rotor structure, said fan blade is to be fixed on the rotor of dragging motor, stator is fixed on the axle, and the gap between said fan blade and the fan housing is greater than 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02275211 CN2588082Y (en) | 2002-09-10 | 2002-09-10 | Safety-increased axial flow blowing fan for explosion-resisting frequency-changing speed-adjusting motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02275211 CN2588082Y (en) | 2002-09-10 | 2002-09-10 | Safety-increased axial flow blowing fan for explosion-resisting frequency-changing speed-adjusting motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2588082Y true CN2588082Y (en) | 2003-11-26 |
Family
ID=33739315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02275211 Expired - Fee Related CN2588082Y (en) | 2002-09-10 | 2002-09-10 | Safety-increased axial flow blowing fan for explosion-resisting frequency-changing speed-adjusting motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2588082Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220992A (en) * | 2011-06-28 | 2011-10-19 | 无锡锡山特种风机有限公司 | Explosion-proof outer rotor motor shaft flow blower |
| CN102338109A (en) * | 2011-07-19 | 2012-02-01 | 平安电气股份有限公司 | Built-in integrated frequency conversion fan |
| CN104481898A (en) * | 2014-12-05 | 2015-04-01 | 浙江理工大学 | Outer-rotor axial flow fan adopting electromagnet bearing |
-
2002
- 2002-09-10 CN CN 02275211 patent/CN2588082Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220992A (en) * | 2011-06-28 | 2011-10-19 | 无锡锡山特种风机有限公司 | Explosion-proof outer rotor motor shaft flow blower |
| CN102338109A (en) * | 2011-07-19 | 2012-02-01 | 平安电气股份有限公司 | Built-in integrated frequency conversion fan |
| CN104481898A (en) * | 2014-12-05 | 2015-04-01 | 浙江理工大学 | Outer-rotor axial flow fan adopting electromagnet bearing |
| CN104481898B (en) * | 2014-12-05 | 2017-01-04 | 浙江理工大学 | Use the external rotor axial-flow fan of electromagnetic bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |