CN107659096A - A kind of fugitive heat type threephase asynchronous of flame proof - Google Patents
A kind of fugitive heat type threephase asynchronous of flame proof Download PDFInfo
- Publication number
- CN107659096A CN107659096A CN201711049947.1A CN201711049947A CN107659096A CN 107659096 A CN107659096 A CN 107659096A CN 201711049947 A CN201711049947 A CN 201711049947A CN 107659096 A CN107659096 A CN 107659096A
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- flame proof
- exhaust duct
- terminal box
- duct hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/12—Asynchronous induction motors for multi-phase current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/136—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas explosion-proof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/10—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a kind of fugitive heat type threephase asynchronous of flame proof, including stator, rotor, rotating shaft, motor casing, drive end bearing bracket and rear end cap, it is characterized in：Terminal box is installed outside motor casing, the flame proof joint of three current supply cable accesses is provided with terminal box, flame proof joint includes joint shell and the clamp nut for compressing cable, and sealing ring is provided between joint shell and clamp nut, O type circles are provided between joint shell and terminal box；The both ends of rotating shaft are respectively installation end and fan connection end, the shaft core position of rotating shaft is provided with exhaust duct hole, the right output port in exhaust duct hole is exposed to fan connection end, the inlet air passage connected with the left port in exhaust duct hole is provided with close to the rotating shaft of installation end, the blower unit of the passway of corresponding inlet air passage is provided with rotating shaft.The present invention have explosion insulation performance it is strong, directly from internal heat dissipating, thermal diffusivity is good and the characteristics of not destroying the sealing of motor.
Description
Technical field
The invention belongs to technical field of motors, more particularly, to a kind of fugitive heat type threephase asynchronous of flame proof.
Background technology
Threephase asynchronous machine is a kind of alternating current generator, is one kind electricity for leaning on while accessing the power supply of 380V three-phase alternating-current supplies
Motivation.Because it has simple in construction, manufacture, use and maintenance are convenient, and reliable and quality is smaller, and cost is more low excellent
Point, so being widely used in driving lathe, water pump, compressor, lifting hoisting equipment, mining machinery, light industry and machinery, agricultural and sideline production
In most of workers and peasants' manufacturing machines such as product processing equipment and household electrical appliance and various electric tools, small-sized several point devices.
Because such motor is frequently applied under some hazardous environments, for example exist in the working environment such as mine
Inflammable and explosive gas, common motor may produce spark, electric arc etc. and ignite gas, and accident occurs.Therefore people
Devise a kind of threephase asynchronous of flame-proof type, its principle be by equipment in normal operation, it would be possible to produce spark, electricity
The part of arc or dangerous high temperature is placed in flameproof enclosure, and flameproof enclosure can bear internal pressure and will not damage, and can guarantee that interior
When the flame gas in portion is propagated by gap, energy is reduced, is not enough to ignite the gas outside shell.
At present, the terminal box of explosion separation motor with easily loosening after long-time use in the presence of a harsh environment at cable connection
Phenomena such as rotten, occurs, so as to have impact on the explosion insulation performance of motor.
The heat abstractor that conventional motors are set in itself is generally radiating ribs and fan on casing, but motor is in reality
Border because usage time is long in use, easily cause electric motor overheating, the heat of motor interior can not in time be discharged, caused
The situation that motor burns occurs, or causes motor operation hydraulic performance decline, and greatly shortens the service life of motor.
The content of the invention
The purpose of the present invention is to be directed to above-mentioned the shortcomings of the prior art, there is provided a kind of fugitive heat type of flame proof is phase asynchronous
Motor, it have explosion insulation performance it is strong, directly from internal heat dissipating, thermal diffusivity is good and the characteristics of not destroying the sealing of motor.
To achieve these goals, the technical solution adopted in the present invention is：A kind of phase asynchronous electricity of fugitive heat type of flame proof
Motivation, including stator, rotor, rotating shaft, motor casing and the drive end bearing bracket and rear end cap that are installed on motor casing rear and front end, described turns
Axle transverse horizontal is arranged in motor casing and described rotating shaft is stretched out outside drive end bearing bracket and rear end cap, is provided with outside described motor casing
The copper cash of terminal box, described stator and rotor is wrapped up in using high-strength polyester enamel-cover, and three are provided with described terminal box
The flame proof joint of current supply cable access, described flame proof joint includes joint shell and the clamp nut for compressing cable, described
Joint shell and clamp nut between be provided with sealing ring and sealing ring is resisted against on cable, described joint shell and wiring
O type circles are provided between box；The both ends of the rotating shaft are respectively installation end and fan connection end, the shaft core position of the rotating shaft
Be provided with exhaust duct hole, the right output port in the exhaust duct hole is exposed to fan connection end, close to the rotating shaft of installation end on set
The inlet air passage connected with the left port in exhaust duct hole is equipped with, the passway of corresponding inlet air passage is provided with the rotating shaft
Blower unit.
Fan is installed on the fan connection end of described rotating shaft.
Described blower unit includes the collar being sheathed in rotating shaft, and the logical of corresponding inlet air passage is provided with the collar
The cover that goes for a drive at road junction.
The rotating shaft surface that rotor is installed in the rotating shaft is provided with every magnetic lining, it is described every magnetic lining be non-magnet material
It is made.
After said structure, the invention has the advantages that compared with the prior art,：The flame proof joint bag of the present invention
Joint shell and clamp nut are included, and is provided with sealing ring between joint shell and clamp nut and sealing ring is resisted against cable
On, then O type circles are provided between joint shell and terminal box, make it have very strong explosion insulation performance；The row of setting in rotating shaft
Wind pipeline hole and inlet air passage, and blower unit is provided with, when the spindle is rotated, it can be pumped air into by blower unit
Inlet air passage and exhaust duct hole, discharged from the right output port in exhaust duct hole, make to form stream in inlet air passage and exhaust duct hole
Dynamic wind, so as to take away the heat in rotating shaft, the heat of motor internal is transmitted in rotating shaft, therefore equivalent to directly taking away motor
Internal heat, beneficial to motor operating temperature is reduced, protection motor safety is run；Every the setting of magnetic lining, make rotor iron
The magnetic flux that heart yoke portion is leaked into rotating shaft can greatly reduce, and caused larger eddy-current loss and shaft current also can be big in rotating shaft
It is big to reduce, so in design of electrical motor, designer electric machine rotor iron core yoke portion magnetic flux density can be designed to it is more higher, favorably
In the dosage for reducing electric machine iron core silicon steel sheet and machine winding electromagnetic wire.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of terminal box.
Fig. 3 is the front view of rotating shaft.
Fig. 4 is the sectional view of rotating shaft.
Fig. 5 is the left view of rotating shaft（Broken section）.
Embodiment
As described below is only presently preferred embodiments of the present invention, is not intended to limit the scope of the present invention, ties below
Closing drawings and examples, the present invention is further described.
Embodiment, as shown in Fig. 1 to Fig. 5：A kind of fugitive heat type threephase asynchronous of flame proof, including stator, rotor, turn
Axle 1, motor casing 2 and the drive end bearing bracket 3 and rear end cap 4 that are installed on the rear and front end of motor casing 2, the described transverse horizontal of rotating shaft 1 are worn
In motor casing 2 and described rotating shaft 1 is stretched out outside drive end bearing bracket 3 and rear end cap 4, and terminal box 5 is provided with outside described motor casing 2,
Described stator and the copper cash of rotor are wrapped up in using high-strength polyester enamel-cover, and three current supply cables are provided with described terminal box 5
The flame proof joint 6 of access, described flame proof joint 6 includes joint shell 7 and the clamp nut 8 for compressing cable, described
Sealing ring 9 is provided between joint shell 7 and clamp nut 8 and sealing ring 9 is resisted against on cable, described joint shell 7 with
O types circle 10 is provided between terminal box 5；The both ends of the rotating shaft 1 are respectively installation end 11 and fan connection end 12, described turn
The shaft core position of axle 1 is provided with exhaust duct hole 13, and the right output port in the exhaust duct hole 13 is exposed to fan connection end 12, tightly
The inlet air passage 14 connected with the left port in exhaust duct hole 13 is provided with the rotating shaft 1 of adjacent installation end 11, is set in the rotating shaft 1
It is equipped with the blower unit 15 of the passway of corresponding inlet air passage 14.
Fan 16 is installed on the fan connection end 12 of described rotating shaft 1.
Described blower unit 15 includes the collar 17 being sheathed in rotating shaft 1, and corresponding inlet air is provided with the collar 17
The cover 18 that goes for a drive of the passway of passage 14.
The surface of rotating shaft 1 that rotor is installed in the rotating shaft 1 is provided with every magnetic lining（Accompanying drawing is not drawn into）, it is described to be served as a contrast every magnetic
Layer is made up of non-magnet material.
The flame proof joint 6 of the present invention includes joint shell 7 and clamp nut 8, and joint shell 7 and clamp nut 8 it
Between be provided with sealing ring 9 and sealing ring 9 is resisted against on cable, O types circle 10 is provided between joint shell 7 and terminal box 5,
Make it have very strong explosion insulation performance；Exhaust duct hole 13 and inlet air passage 14 are set in rotating shaft 1, and there is provided air inducing dress
15 are put, when rotating shaft 1 rotates, inlet air passage 14 and exhaust duct hole 13 can be pumped air into by blower unit 15, from row
The right output port discharge in wind pipeline hole 13, make to form flowing wind in inlet air passage 14 and exhaust duct hole 13, so as to take away in rotating shaft 1
Heat, the heat of motor internal is transmitted in rotating shaft 1, therefore equivalent to the heat for directly taking away motor internal, beneficial to drop
Low motor operating temperature, protection motor safety operation.
When manufacturing motor, typically rotor core is directly sleeved in rotating shaft 1.Rotor rear of core in motor work
Magnetic field can enter rotating shaft 1, so that larger eddy-current loss and shaft current can be caused inside rotating shaft 1, so can not only increase
The loss of electric machine, and shaft current can produce infringement to bearing.Every the setting of magnetic lining, leak into electric machine rotor iron core yoke portion and turn
Magnetic flux on axle 1 can greatly reduce, and caused larger eddy-current loss and shaft current can also greatly reduce in rotating shaft 1, so
In design of electrical motor, electric machine rotor iron core yoke portion magnetic flux density can be designed to more higher by designer, advantageously reduce motor
The dosage of electrical steel piece and machine winding electromagnetic wire.
Claims (4)
1. a kind of fugitive heat type threephase asynchronous of flame proof, including stator, rotor, rotating shaft（1）, motor casing（2）Be installed on
Motor casing（2）The drive end bearing bracket of rear and front end（3）And rear end cap（4）, described rotating shaft（1）Transverse horizontal is arranged in motor casing（2）
Interior and described rotating shaft（1）Stretch out drive end bearing bracket（3）And rear end cap（4）Outside, described motor casing（2）Terminal box is installed outside（5）,
It is characterized in that：Described stator and the copper cash of rotor are wrapped up in using high-strength polyester enamel-cover, described terminal box（5）Upper setting
There is the flame proof joint of three current supply cable accesses（6）, described flame proof joint（6）Including joint shell（7）With for compressing cable
Clamp nut（8）, described joint shell（7）With clamp nut（8）Between be provided with sealing ring（9）And sealing ring（9）Support
It is against on cable, described joint shell（7）With terminal box（5）Between be provided with O type circles（10）；The rotating shaft（1）Two
End is respectively installation end（11）With fan connection end（12）, the rotating shaft（1）Shaft core position be provided with exhaust duct hole（13）,
The exhaust duct hole（13）Right output port be exposed to fan connection end（12）, close to installation end（11）Rotating shaft（1）Upper setting
Have and exhaust duct hole（13）Left port connection inlet air passage（14）, the rotating shaft（1）On be provided with corresponding inlet air passage
（14）Passway blower unit（15）.
A kind of 2. fugitive heat type threephase asynchronous of flame proof according to claim 1, it is characterised in that：Described rotating shaft
（1）Fan connection end（12）On fan is installed（16）.
A kind of 3. fugitive heat type threephase asynchronous of flame proof according to claim 1, it is characterised in that：Described air inducing
Device（15）Including being sheathed on rotating shaft（1）On the collar（17）, the collar（17）On be provided with corresponding inlet air passage（14）'s
The cover that goes for a drive of passway（18）.
A kind of 4. fugitive heat type threephase asynchronous of flame proof according to claim 1, it is characterised in that：The rotating shaft
（1）The rotating shaft of upper installation rotor（1）Surface is provided with every magnetic lining, described to be made up every magnetic lining of non-magnet material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711049947.1A CN107659096A (en) | 2017-10-31 | 2017-10-31 | A kind of fugitive heat type threephase asynchronous of flame proof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711049947.1A CN107659096A (en) | 2017-10-31 | 2017-10-31 | A kind of fugitive heat type threephase asynchronous of flame proof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107659096A true CN107659096A (en) | 2018-02-02 |
Family
ID=61095396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711049947.1A Withdrawn CN107659096A (en) | 2017-10-31 | 2017-10-31 | A kind of fugitive heat type threephase asynchronous of flame proof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107659096A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011254573A (en) * | 2010-05-31 | 2011-12-15 | Aisin Seiki Co Ltd | Rotor of rotating electrical machine |
| CN202586540U (en) * | 2011-12-16 | 2012-12-05 | 铜陵浩岩节能科技有限公司 | Permanent magnet motor rotor and permanent magnet motor thereof |
| CN204046321U (en) * | 2014-01-11 | 2014-12-24 | 温州艾克生汽车电器有限公司 | With the automobile current generator of baffler |
| CN204465284U (en) * | 2015-03-24 | 2015-07-08 | 浙江万时达电机有限公司 | A kind of Flame-Proof Three-Phase Induction Motors |
| CN205583933U (en) * | 2016-04-27 | 2016-09-14 | 三门峡速达交通节能科技股份有限公司 | Motor of inside heat dissipation self -cooling |
| CN207339608U (en) * | 2017-10-31 | 2018-05-08 | 方大电机股份有限公司 | A kind of fugitive heat type threephase asynchronous of flame proof |
-
2017
- 2017-10-31 CN CN201711049947.1A patent/CN107659096A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011254573A (en) * | 2010-05-31 | 2011-12-15 | Aisin Seiki Co Ltd | Rotor of rotating electrical machine |
| CN202586540U (en) * | 2011-12-16 | 2012-12-05 | 铜陵浩岩节能科技有限公司 | Permanent magnet motor rotor and permanent magnet motor thereof |
| CN204046321U (en) * | 2014-01-11 | 2014-12-24 | 温州艾克生汽车电器有限公司 | With the automobile current generator of baffler |
| CN204465284U (en) * | 2015-03-24 | 2015-07-08 | 浙江万时达电机有限公司 | A kind of Flame-Proof Three-Phase Induction Motors |
| CN205583933U (en) * | 2016-04-27 | 2016-09-14 | 三门峡速达交通节能科技股份有限公司 | Motor of inside heat dissipation self -cooling |
| CN207339608U (en) * | 2017-10-31 | 2018-05-08 | 方大电机股份有限公司 | A kind of fugitive heat type threephase asynchronous of flame proof |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180202 |