CN106300803A - A kind of internally air-cooled formula frequency conversion motor - Google Patents
A kind of internally air-cooled formula frequency conversion motor Download PDFInfo
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- CN106300803A CN106300803A CN201510240598.6A CN201510240598A CN106300803A CN 106300803 A CN106300803 A CN 106300803A CN 201510240598 A CN201510240598 A CN 201510240598A CN 106300803 A CN106300803 A CN 106300803A
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- fan
- electric machine
- frequency conversion
- machine casing
- motor
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Abstract
The invention discloses a kind of internally air-cooled formula frequency conversion motor, it includes electric machine casing (1), the internally installed of described electric machine casing (1) has motor stator (3) and rotor (10), there is on the outer wall of described electric machine casing (1) the hot fin of some fans (8), the front end of described electric machine casing (1) is provided with drive end bearing bracket (9), it also includes some fan heat pipes (2), the two ends of described fan heat pipe (2) connect with the inner space of electric machine casing (1), the internally installed of described electric machine casing (1) has fan thermal (4), the structure of described fan thermal (4) includes a baffle plate (42), some mini fans (41) it are provided with on described baffle plate (42), described baffle plate (42) is arranged on the main shaft of micro machine (43).Internal cooling effect of the present invention is more preferable, and service life more lengthens, and the work of the present invention is the most stable.
Description
Technical field:
The present invention relates to frequency conversion motor technical field, more specifically to a kind of internally air-cooled formula
Frequency conversion motor.
Background technology:
Frequency conversion motor has the features such as energy-conservation and stepless time adjustment, be widely used in coal, oil,
The industries such as chemical industry, generating, metallurgy, machine-building, are used for dragging Transport Machinery, blower fan, water
The equipment such as pump, disintegrating machine, frequency conversion motor rotating speed can adjust as required.
Frequency conversion motor is to provide frequency change and voltage magnitude adjustable by variable-frequency power sources to motor
Power, control motor speed, reach motor dragged load need operating mode, it is to avoid electricity
Machine consumes the unwanted energy, makes motor reach energy-conservation purpose.When frequency conversion motor runs, meeting
Producing loss, loss produces heat needs the air quantity produced by the inside and outside fan of frequency conversion motor to take away.
Owing to frequency conversion motor rotating speed sometimes is relatively low, inside and outside fan can not produce blast, shape by high speed rotating
Become air quantity, dispel the heat to frequency conversion motor.Then, produce frequency conversion motor producer, external fan is changed into
Force cooling blower.Owing to the degree of protection of frequency conversion motor requires, frequency conversion motor internal fan is not
Can be directly with forcing cooling blower, therefore, in frequency conversion motor, wind path is at frequency conversion motor low cruise
Time, cooling effect is poor, and for making the frequency conversion motor slow-speed of revolution reliable, motor producer is by frequency conversion
The volume of design of electrical motor is bigger.
Frequency conversion motor is when the frequency control slow-speed of revolution, and on rotor, internal fan rotating speed is relatively low, it is impossible to shape
Become blast and air quantity, cool down rotor, reduce frequency conversion motor temperature rise.If according to outer ventilation circuit
The method strengthening cooling blower, in solving frequency conversion motor, wind path circulation temperature lowering problem is more tired
Difficult.First, variable frequency motor base is more complicated, strong air-cooler installation difficulty, and installing reluctantly can not
Ensure the degree of protection within frequency conversion motor；Second, existing strong air-cooler volume is bigger, it is impossible to
Install.
It addition, frequency conversion motor is in use, converter produces higher hamonic wave, turns at motor
Producing induced potential on son, by two ends of rotor bearing, form shaft current, shaft current can be to electricity
Machine bearing oil film produces galvanic corrosion, causes motor bearings premature breakdown.As motor bearings is changed too late
Time, motor holding shaft can be caused or burn, running reliability of motor is poor, and motor operating cost is high.
It addition, produce the manufacturing firm of frequency conversion motor, all notice the impact that motor is run by shaft current,
Also taking some measures, as used insulation bearing, grounding carbon brush etc., the problem of being primarily present is into
This height, versatility is not strong, the most high defect of reliability.
Summary of the invention:
The purpose of the present invention is that a kind of internally air-cooled formula frequency conversion motor of offer, and its inside is cold
But effect is more preferable, and service life more lengthens, and the work of the present invention is the most stable.
For achieving the above object, the one of the present invention internally air-cooled formula frequency conversion motor includes motor casing
Body, the internally installed of described electric machine casing has motor stator and rotor, described electric machine casing
Outer wall on there is the hot fin of some fans, the front end of described electric machine casing is provided with drive end bearing bracket, it
Also include that some fan heat pipes, the described two ends of fan heat pipe connect with the inner space of electric machine casing,
The internally installed of described electric machine casing has fan thermal, and the structure of described fan thermal includes a gear
Plate, described baffle plate is provided with some mini fans, and described baffle plate is arranged on the main shaft of micro machine
On, the structure of described drive end bearing bracket includes inner cap, enclosing cover and end cap, described inner cap, enclosing cover and end
Lid is fixed together, and described drive end bearing bracket also includes that bearing, described bearing are placed in insulation sleeve and pacify
Being contained between inner cap, enclosing cover, the left side of described bearing and right side are respectively and between inner cap and enclosing cover
It is provided with insulating barrier.
Preferred as technique scheme, being shaped as of described baffle plate is discoid, described baffle plate
On six mini fans are installed, described six mini fan circular array are distributed in baffle plate
On.
Preferred as technique scheme, described fan thermal is arranged on the inside of electric machine casing
And it is positioned at outlet or the porch of fan heat pipe.
Preferred as technique scheme, the rear portion of described electric machine casing is provided with rear end cap,
There is on described rear end cap deflector, deflector offers some pod apertures, described rear end cap
Internally installed have fan Hot-air fan.
Preferred as technique scheme, described motor stator is provided with speed probe,
Described speed probe and one controls mainboard and is electrically connected with, and described control mainboard has reception rotating speed
The measurement of rotating speed module of sensor rotation speed information, described control mainboard also has the miniature wind of control
The mini fan control module of machine rotating speed and the micro machine control module of control micro electric machine rotating speed.
Preferred as technique scheme, described mini fan is axial flow blower.
Preferred as technique scheme, is provided with insulation between described end cap and insulation sleeve
Layer, described insulating barrier is DMC insulating barrier.
Preferred as technique scheme, described inner cap, enclosing cover and end cap are bolted
Together.
Preferred as technique scheme, described end cap forms reinforcement.
The beneficial effects of the present invention is: the present invention is internally formed with electric machine casing by fan heat pipe
Fan hot-air closed circuit, and have fan thermal the internally installed of electric machine casing, by fan
Thermal forms internal air circulation and carries out fan heat, which overcomes following two technical difficulties: first,
Variable frequency motor base is more complicated, strong air-cooler installation difficulty, installs reluctantly it cannot be guaranteed that variable-frequency electric
Degree of protection within machine；Second, existing strong air-cooler volume is bigger, it is impossible to install, therefore
The present invention has the more preferable feature of cooling effect, and it is more stable to work, and service life is the most more
Long.
It addition, the present invention has insulating barrier, by the buffer action of insulation sleeve, motor is made to produce
Induced potential can not form loop, produce shaft current, reach to protect the purpose of motor bearings,
Therefore the present invention can make the operation of motor more stable, and it also can extend the use of bearing simultaneously
In the life-span, reduce production cost.
Accompanying drawing illustrates:
The present invention is described further below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of the embodiment of the present invention
Fig. 2 is the structural representation of embodiment of the present invention middle fan thermal
Fig. 3 is the left view of Fig. 2
Fig. 4 is the block diagram of the embodiment of the present invention
Fig. 5 is the structural representation of drive end bearing bracket in the embodiment of the present invention
In figure: 1, electric machine casing；2, fan heat pipe；3, motor stator；4, fan thermal；
5, deflector；6, fan Hot-air fan；7, rear end cap；8, hot fin is fanned；9, drive end bearing bracket；
10, rotor；41, mini fan；42, baffle plate；43, micro machine；91, end cap；
92, inner cap；93, bolt；94, insulation sleeve；95, insulating barrier；96, bearing；97, outer
Lid；911, reinforcement
Detailed description of the invention:
The following stated is only the preferred embodiment embodying the principle of the invention, the most therefore limits this
The protection domain of invention
As Fig. 1 to 5 show the embodiment of a kind of internally air-cooled formula frequency conversion motor of the present invention, it
Including electric machine casing 1, the internally installed of described electric machine casing 1 has motor stator 3 and motor to turn
Son 10, the outer wall of described electric machine casing 1 has the hot fin of some fans 8, described electric machine casing
The front end of 1 is provided with drive end bearing bracket 9, and it also includes some fan heat pipes 2, described fan heat pipe 2
Two ends connect with the inner space of electric machine casing 1, and described the internally installed of electric machine casing 1 has fan
Thermal 4, the structure of described fan thermal 4 includes a baffle plate 42, described baffle plate 42 sets
Being equipped with some mini fans 41, described baffle plate 42 is arranged on the main shaft of micro machine 43, institute
State the structure of drive end bearing bracket 9 and include inner cap 92, enclosing cover 97 and end cap 91, described inner cap 92,
Enclosing cover 97 and end cap 91 are fixed together, and described drive end bearing bracket 9 also includes bearing 96, described
Bearing 96 is placed in insulation sleeve 94 and is arranged between inner cap 92, enclosing cover 97, described bearing
The left side of 96 and right side respectively and are provided with insulating barrier 95 between inner cap 92 and enclosing cover 97.
Being shaped as of baffle plate 42 is discoid, and described baffle plate 42 is provided with six mini fans
41, described six mini fan 41 circular array are distributed on baffle plate 42.
Fan thermal 4 is arranged on the inside of electric machine casing 1 and is positioned at the outlet of fan heat pipe 2 or enters
At Kou.
The rear portion of electric machine casing 1 is provided with rear end cap 7, and described rear end cap 7 has deflector
5, deflector 5 offers some pod apertures, described rear end cap 7 is internally installed fan hot blast
Fan 6.
Being provided with speed probe on motor stator 3, described speed probe and controls mainboard
Being electrically connected with, described control mainboard has the measurement of rotating speed mould receiving rotation speed sensor information
Block, described control mainboard also has the mini fan control mould controlling mini fan 41 rotating speed
The micro machine control module of block and control micro electric machine rotating speed.
Mini fan 41 is axial flow blower.
Being provided with insulating barrier 95 between end cap 91 and insulation sleeve 94, described insulating barrier 95 is DMC
Insulating barrier.
Inner cap 92, enclosing cover 97 and end cap 91 are fixed together by bolt 93.
Reinforcement 911 is formed on end cap 91.
The present invention is internally formed fan hot-air closed circuit by fan heat pipe and electric machine casing, and
Internally installed at electric machine casing has fan thermal, forms internal air circulation by fan thermal and enters
Row fan heat, which overcomes following two technical difficulties: first, and variable frequency motor base is more complicated,
Strong air-cooler installation difficulty, installs it cannot be guaranteed that degree of protection within frequency conversion motor reluctantly；The
Two, existing strong air-cooler volume is bigger, it is impossible to installing, therefore the present invention has cooling effect more preferable
Feature, and work more stable, service life the most more lengthens.
The present invention is also had to have insulating barrier 95, by insulation sleeve 94 and the isolation of insulating barrier 95
Effect, the induced potential making motor produce can not form loop, produces shaft current, reaches protection
The purpose of motor bearings, therefore the present invention can make the operation of motor more stable, and it is also simultaneously
The service life of bearing can be extended, reduce production cost.
Above-described embodiment, only for technology design and the feature of the explanation present invention, its object is to allow ripe
The personage knowing technique will appreciate that present disclosure and implements according to this, can not limit with this
Protection scope of the present invention processed.All equivalences made according to spirit of the invention change or repair
Decorations, all should contain within protection scope of the present invention.
Claims (9)
1. an internally air-cooled formula frequency conversion motor, it includes electric machine casing (1), described motor
The internally installed of housing (1) has motor stator (3) and rotor (10), described motor
There is the hot fin of some fans (8), before described electric machine casing (1) on the outer wall of housing (1)
End is provided with drive end bearing bracket (9), it is characterised in that: it also includes some fan heat pipes (2), described
The two ends of fan heat pipe (2) connect with the inner space of electric machine casing (1), described electric machine casing
(1) internally installed has fan thermal (4), and the structure of described fan thermal (4) includes one
Baffle plate (42), described baffle plate (42) is provided with some mini fans (41), described baffle plate
(42) being arranged on the main shaft of micro machine (43), the structure of described drive end bearing bracket (9) includes
Inner cap (92), enclosing cover (97) and end cap (91), described inner cap (92), enclosing cover (97)
Being fixed together with end cap (91), described drive end bearing bracket (9) also includes bearing (96), described
Bearing (96) be placed in insulation sleeve (94) and be arranged on inner cap (92), enclosing cover (97) it
Between, the left side of described bearing (96) and right side respectively with inner cap (92) and enclosing cover (97) it
Between be provided with insulating barrier (95).
One the most according to claim 1 internally air-cooled formula frequency conversion motor, its feature exists
In: being shaped as of baffle plate (42) is discoid, described baffle plate (42) is provided with six miniature
Blower fan (41), described six mini fan (41) circular array are distributed in baffle plate (42)
On.
One the most according to claim 2 internally air-cooled formula frequency conversion motor, its feature exists
In: fan thermal (4) is arranged on the inside of electric machine casing (1) and is positioned at fan heat pipe (2)
Outlet or porch.
One the most according to claim 3 internally air-cooled formula frequency conversion motor, its feature exists
In: the rear portion of electric machine casing (1) is provided with rear end cap (7), the upper tool of described rear end cap (7)
There is deflector (5), deflector (5) offers some pod apertures, described rear end cap (7)
Internally installed have fan Hot-air fan (6).
One the most according to claim 1 internally air-cooled formula frequency conversion motor, its feature exists
In: being provided with speed probe on motor stator (3), described speed probe and controls
Mainboard is electrically connected with, and described control mainboard has the rotating speed survey receiving rotation speed sensor information
Die trial block, described control mainboard also has the mini fan of control mini fan (41) rotating speed
The micro machine control module of control module and control micro electric machine rotating speed.
One the most according to any one of claim 1 to 6 internally air-cooled formula variable-frequency electric
Machine, it is characterised in that: mini fan (41) is axial flow blower.
One the most according to any one of claim 1 to 6 internally air-cooled formula variable-frequency electric
Machine, it is characterised in that: it is provided with insulating barrier (95) between end cap (91) and insulation sleeve (94),
Described insulating barrier (95) is DMC insulating barrier.
One the most according to any one of claim 1 to 6 internally air-cooled formula variable-frequency electric
Machine, it is characterised in that: inner cap (92), enclosing cover (97) and end cap (91) pass through bolt (93)
It is fixed together.
One the most according to any one of claim 1 to 6 internally air-cooled formula frequency conversion motor,
It is characterized in that: on end cap (91), form reinforcement (911).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510240598.6A CN106300803A (en) | 2015-05-12 | 2015-05-12 | A kind of internally air-cooled formula frequency conversion motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510240598.6A CN106300803A (en) | 2015-05-12 | 2015-05-12 | A kind of internally air-cooled formula frequency conversion motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106300803A true CN106300803A (en) | 2017-01-04 |
Family
ID=57631358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510240598.6A Pending CN106300803A (en) | 2015-05-12 | 2015-05-12 | A kind of internally air-cooled formula frequency conversion motor |
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| Country | Link |
|---|---|
| CN (1) | CN106300803A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742935A (en) * | 2017-10-17 | 2018-02-27 | 天津飞旋高速电机科技有限公司 | Magnetic suspension high speed motor with novel air-cooled structure |
| WO2021082177A1 (en) * | 2019-11-01 | 2021-05-06 | 苏州工业园区星德胜电机有限公司 | Axial flow fan having two fixed bearings |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2759040Y (en) * | 2004-06-25 | 2006-02-15 | 无锡华达电机有限公司 | Heat radiation air shield |
| CN104901468A (en) * | 2014-03-05 | 2015-09-09 | 泰州市华源电机有限公司 | Internally air-cooled variable-frequency motor |
| CN204681210U (en) * | 2015-05-12 | 2015-09-30 | 江苏华源防爆电机有限公司 | A kind of internally air-cooled formula variable-frequency motor |
-
2015
- 2015-05-12 CN CN201510240598.6A patent/CN106300803A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2759040Y (en) * | 2004-06-25 | 2006-02-15 | 无锡华达电机有限公司 | Heat radiation air shield |
| CN104901468A (en) * | 2014-03-05 | 2015-09-09 | 泰州市华源电机有限公司 | Internally air-cooled variable-frequency motor |
| CN204681210U (en) * | 2015-05-12 | 2015-09-30 | 江苏华源防爆电机有限公司 | A kind of internally air-cooled formula variable-frequency motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742935A (en) * | 2017-10-17 | 2018-02-27 | 天津飞旋高速电机科技有限公司 | Magnetic suspension high speed motor with novel air-cooled structure |
| WO2021082177A1 (en) * | 2019-11-01 | 2021-05-06 | 苏州工业园区星德胜电机有限公司 | Axial flow fan having two fixed bearings |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170104 |