CN104716769B - Electric rotating machine - Google Patents
Electric rotating machine Download PDFInfo
- Publication number
- CN104716769B CN104716769B CN201410356716.5A CN201410356716A CN104716769B CN 104716769 B CN104716769 B CN 104716769B CN 201410356716 A CN201410356716 A CN 201410356716A CN 104716769 B CN104716769 B CN 104716769B
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- Prior art keywords
- rotating machine
- electric rotating
- main body
- machine main
- periphery
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Classifications
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- 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
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
- H02K9/16—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the cooling medium circulates through ducts or tubes within the casing
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
A kind of electric rotating machine of pressure-resistant explosion-proof, in the pressure vessel housed to electric rotating machine main body, is provided with many cooling tubes.Even if providing one kind internally generates blast pressure, internal pressure can be also suppressed to the electric rotating machine of the pressure-resistant explosion-proof of relatively low structure.Pressure vessel (14) surrounds the surrounding of electric rotating machine main body (13), rotor core (11) of the electric rotating machine main body (13) with the periphery for being arranged on rotary shaft (16), the stator core (12) set in the way of the gap of regulation is kept with rotor core (11) periphery.In the space being looped around around the central part of the periphery of electric rotating machine main body (13) in pressure vessel (14), many cooling tubes (19) are configured with respectively in axial direction.Using being arranged on demarcation strip (20) around the central part in the centre position of cooling tube (19), by the space being provided with around many central parts of cooling tube (19) in pressure vessel (14), the front and rear part of the length direction of the cooling tube (19) is divided into.
Description
Technical field
Embodiments of the present invention are related to a kind of rotation that many cooling tubes are arranged on the pressure-resistant explosion-proof in pressure vessel
Rotating motor, the pressure vessel is housed to electric rotating machine main body.
Background technology
As one kind of electric rotating machine, there is the electric rotating machine of so-called pressure-resistant explosion-proof, the rotation of this pressure-resistant explosion-proof
Be housed in electric rotating machine main body with rotor and the stator of the periphery for being arranged on the rotor in pressure vessel by rotating motor, even if
Blast pressure is internally generated, the blast pressure is traveled to outside.In the electric rotating machine of this pressure-resistant explosion-proof
In, when the pressure that generation explosion time is internally produced increases, in order to ensure sufficient explosion-proof, it is necessary to make pressure vessel
Plate pressure increase, the maximization of shape and weight is caused on the whole.In order to solve the problem, such as Japanese Patent Laid-Open 8-
Shown in No. 196049 publications, it is proposed that a kind of improvement to internal structure and be used to realize the scheme of lightness.
The content of the invention
The technical problem to be solved in the present invention is, there is provided even if one kind internally generates blast pressure, also can be interior
Portion's pressure restraining is the electric rotating machine of the pressure-resistant explosion-proof of relatively low structure.
The electric rotating machine of the pressure-resistant explosion-proof of embodiments of the present invention is characterised by, including：Electric rotating machine main body, should
Electric rotating machine main body has the rotor core of the periphery for being arranged on rotary shaft, regulation is kept with the periphery of the rotor core between
The cylindric stator core that the mode of gap is set；Pressure vessel, the pressure vessel is by the surrounding bag of above-mentioned electric rotating machine main body
Enclose；And many cooling tubes, these cooling tubes respectively along the axial arrangement of above-mentioned rotary shaft in above-mentioned pressure vessel surround
In space around the central part of the periphery of above-mentioned electric rotating machine main body, in the centre position of the length direction of above-mentioned cooling tube
It is provided with and the space around above-mentioned central part is divided into demarcation strip around the central part of the front and rear part of above-mentioned length direction.
Brief description of the drawings
Fig. 1 is the partial sectional view of the electric rotating machine of the pressure-resistant explosion-proof for representing one embodiment of the present invention.
Specific embodiment
Hereinafter, embodiments of the present invention are described in detail referring to the drawings.
Fig. 1 represents the cross section structure of the electric rotating machine of the pressure-resistant explosion-proof of present embodiment.The electric rotating machine is using pressure
The structure that force container 14 is surrounded the surrounding of electric rotating machine main body 13 in the way of keeping interval with electric rotating machine main body 13, it is above-mentioned
Electric rotating machine main body 13 has rotor core 11 and stator core 12.Rotor core 11 is installed as one with the periphery of rotary shaft 16
Body.Using the support of bearing 17 being arranged on the end face of pressure vessel 14, rotary shaft 16 is set rotatably to enter to rotary shaft 16
Row supporting.Stator core 12 is formed as cylindric, and the inner peripheral surface of stator core 12 is set to be kept with the periphery of rotor core 11
The gap of regulation.
Pressure vessel 14 is made securely, with also can be to producing the blast pressure inside pressure vessel 14 to hold
Receive, as described above, pressure vessel 14 with electric rotating machine main body 13 in the way of keeping interval, by the surrounding of electric rotating machine main body 13
Surround.Also, the space being looped around around the central part of the periphery of electric rotating machine main body 13 in the pressure vessel 14 is (in figure
In example, the mainly superjacent air space of electric rotating machine main body 13) in, there are many cooling tubes along the axial arrangement of rotary shaft 16 respectively
19.The outside of pressure vessel 14 is led at the two ends of these cooling tubes 19, makes the cooling mediums such as air from external aeration, is handed over by heat
Cooling in equipment of changing commanders.
The outer peripheral portion of these many cooling tubes 19 is provided with demarcation strip 20.That is, the demarcation strip 20 is in cooling tube 19
Length direction centre position, the space that will be provided with around the central part in many pressure vessels of cooling tube 19 14 is divided into length
Spend the front and rear part in direction.Thus, by demarcation strip around the demarcation strip 20 referred to as central part.Demarcation strip 20 will around the central part
Length direction between the periphery of each cooling tube 19 in the space around central part in above-mentioned pressure vessel 14, along cooling tube 19
Air-flow cut-out.
In addition, in the periphery for constituting the rotor core 11 of electric rotating machine main body 13 and the gap of the inner circumferential of stator core 12
In, it is also equipped with the gap demarcation strip 21 for separating the gap.That is, the gap demarcation strip 21 between above-mentioned gap, rotary shaft
Above-mentioned gap is divided into the front and rear part of the length direction of rotary shaft 16 for the position of 16 length direction pars intermedia.The gap point
The air-flow cut-out that dividing plate 21 will flow along the length direction of rotary shaft 16 in above-mentioned gap.Due to constituting side's structure in the gap
Part is fixed, and the opposing party's component carries out spinning movement, thus ensuring that minimum air void, can keep the two components
While relativeness, the mode of the air cut-out that will be flowed in gap closes above-mentioned gap.
In said structure, in the electric rotating machine of this pressure-resistant explosion-proof, in order to confirm to voltage endurance, carry out
Exploded in the inside of this electric rotating machine, and to test that blast pressure when the time comes is measured.In this case, exist
On the basis of keeping stronger voltage endurance, it is important that as far as possible by the rising of the blast pressure in electric rotating machine be suppressed to compared with
It is low.It is relatively low due to this blast pressure being suppressed to, therefore the biography of flame drastically when can effectively prevent from measuring blast pressure
Broadcast.
Here, in the inside of electric rotating machine, there is the gap between many cooling tubes 19 and rotor core 11 and stator iron
The narrow space such as the gap of the heart 12.When there is explosion time in electric rotating machine, in these narrow area of space, flame
There is the tendency for rising in flow velocity.In the case where above-mentioned demarcation strip 20,21 is not provided with, the flame produced with blast is at these
In narrow area of space, it is changed into the fierce burning form that the speed more than with velocity of sound is propagated with shock wave, produces
Pressure higher is given birth to.Therefore, when the blast pressure to the benchmark as pressure-resistant explosion-proof electric rotating machine is measured, can survey
Pressure higher is measured, in the design of the frame strength of the grade of pressure vessel 14, the thickness of slab that can make these frameworks increases etc., large-scale
Change and the increase of weight, are unfavorable.
Therefore, in the present embodiment, by setting demarcation strip 20,21, by the flame in above-mentioned narrow area of space
Cut-out, is risen with the flow velocity for preventing the flame.As a result, can reliably prevent the flame that is produced with blast with velocity of sound with
On speed situation about being propagated with shock wave, pressure can be risen and suppressed.To being rotated as pressure-resistant explosion-proof
When the blast pressure of the benchmark of motor is measured, pressure can be risen and suppressed, it is not necessary in the framework of the grade of pressure vessel 14
In the design of intensity, making the thickness of slab of these frameworks increases etc., is favourable.
In addition, in the above-described embodiment, being provided with demarcation strip 20 and gap demarcation strip 21 around central part, but it is also possible to
Any one demarcation strip is set.In this case, the effect for preventing pressure from rising can also be produced.
In addition, gap demarcation strip 21 can also be separately positioned in the gap of rotor core 11 and stator core 12, axle
To many places.When so constituting, significantly more efficient suppression can be carried out to producing pressure during blast pressure to rise.
Some implementation methods of the invention are illustrated above, but these implementation methods are intended only as example proposition,
It is not intended to limit the scope of invention.The implementation method of this innovation can be implemented with other various forms, can not depart from
Various omissions, replacement, change are carried out in the range of the purport of invention.These implementation methods and its deformation are included in the model of invention
Enclose with purport, and be included in the invention described in claims and the scope impartial with it.
Claims (4)
1. a kind of electric rotating machine of pressure-resistant explosion-proof, including electric rotating machine main body, the electric rotating machine main body have be arranged on rotation
The rotor core of the periphery of axle, the cylindric stator set in the way of the gap that the periphery with the rotor core keeps regulation
It is unshakable in one's determination, it is characterised in that
The electric rotating machine of the pressure-resistant explosion-proof also includes：
Pressure vessel, the pressure vessel with the electric rotating machine main body in the way of keeping interval by the four of the electric rotating machine main body
Week surrounds；And
Many cooling tubes, these cooling tubes are looped around institute along the axial arrangement of the rotary shaft in the pressure vessel respectively
In space around the central part of the periphery for stating electric rotating machine main body,
It is provided with the centre position of the length direction of the cooling tube and the space around the central part is divided into the length
Demarcation strip around the central part of the front and rear part for spending direction.
2. a kind of electric rotating machine of pressure-resistant explosion-proof, including electric rotating machine main body, the electric rotating machine main body have be arranged on rotation
The rotor core of the periphery of axle, the cylindric stator set in the way of the gap that the periphery with the rotor core keeps regulation
It is unshakable in one's determination, it is characterised in that
Pressure vessel, the pressure vessel surrounds the surrounding of the electric rotating machine main body；And
Many cooling tubes, these cooling tubes are looped around institute along the axial arrangement of the rotary shaft in the pressure vessel respectively
In space around the central part of the periphery for stating electric rotating machine main body,
The length direction pars intermedia of the rotary shaft is provided with gap demarcation strip, the gap demarcation strip is by the rotor core
Gap between the inner circumferential of periphery and the stator core is divided into the front and rear part of the length direction.
3. a kind of electric rotating machine of pressure-resistant explosion-proof, including electric rotating machine main body, the electric rotating machine main body have be arranged on rotation
The rotor core of the periphery of axle, the cylindric stator set in the way of the gap that the periphery with the rotor core keeps regulation
It is unshakable in one's determination, it is characterised in that
The electric rotating machine of the pressure-resistant explosion-proof also includes：
Pressure vessel, the pressure vessel surrounds the surrounding of the electric rotating machine main body；And
Many cooling tubes, these cooling tubes are looped around institute along the axial arrangement of the rotary shaft in the pressure vessel respectively
In space around the central part of the periphery for stating electric rotating machine main body,
It is provided with the centre position of the length direction of the cooling tube and the space around the central part is divided into the length
Demarcation strip around the central part of the front and rear part for spending direction,
The length direction pars intermedia of the rotary shaft is provided with gap demarcation strip, the gap demarcation strip is by the rotor core
Gap between the inner circumferential of periphery and the stator core is divided into the front and rear part of the length direction.
4. the electric rotating machine of pressure-resistant explosion-proof as claimed in claim 2 or claim 3, it is characterised in that
The gap demarcation strip is separately positioned on the gap between the inner circumferential of the periphery of the rotor core and the stator core
In, many places on the length direction of the rotary shaft.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-256073 | 2013-12-11 | ||
| JP2013256073A JP2015116037A (en) | 2013-12-11 | 2013-12-11 | Rotary electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104716769A CN104716769A (en) | 2015-06-17 |
| CN104716769B true CN104716769B (en) | 2017-05-31 |
Family
ID=53415828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410356716.5A Active CN104716769B (en) | 2013-12-11 | 2014-07-24 | Electric rotating machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2015116037A (en) |
| CN (1) | CN104716769B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006101658A (en) * | 2004-09-30 | 2006-04-13 | Toshiba Corp | Totally enclosed motor for vehicle |
| CN101309036A (en) * | 2008-07-15 | 2008-11-19 | 南阳防爆集团有限公司 | Explosion isolation type low-voltage explosion-proof power generator |
| CN102290941A (en) * | 2011-09-02 | 2011-12-21 | 南阳防爆集团股份有限公司 | High-pressure explosion-proof type three-phase asynchronous motor |
| CN202190198U (en) * | 2011-08-17 | 2012-04-11 | 南阳防爆集团股份有限公司 | Explosionproof three-phase asynchrounous motor satisfying requirement of dIICT4 explosionrproof level |
| CN202424448U (en) * | 2012-02-29 | 2012-09-05 | 河南省正大防爆电机有限公司 | High-efficiency explosion-proof three-phase asynchronous motor |
| CN102832742A (en) * | 2012-09-18 | 2012-12-19 | 东风汽车股份有限公司 | Mining explosion-proof generator integrated with cooling system |
| CN102916549A (en) * | 2011-08-04 | 2013-02-06 | 湖北毅源科技开发有限公司 | Explosion-proof brushless DC motor |
| CN103339836A (en) * | 2011-02-04 | 2013-10-02 | 依必安-派特穆尔芬根股份有限两合公司 | Direct current electric motor in an explosion proof design |
| CN203243153U (en) * | 2013-05-13 | 2013-10-16 | 湖北毅源科技开发有限公司 | Explosion-proof motor case |
| CN203278579U (en) * | 2013-05-24 | 2013-11-06 | 钟祥市新宇机电制造有限公司 | Flameproof high-efficiency energy-saving three-phase asynchronous vibration motor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5521539B1 (en) * | 1970-06-22 | 1980-06-10 | ||
| JPS57170670U (en) * | 1981-04-23 | 1982-10-27 | ||
| JPH10174370A (en) * | 1996-12-06 | 1998-06-26 | Meidensha Corp | Totally enclosed fan-cooled air-cooled heat exchanger type dynamo-electric machine |
-
2013
- 2013-12-11 JP JP2013256073A patent/JP2015116037A/en active Pending
-
2014
- 2014-07-24 CN CN201410356716.5A patent/CN104716769B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006101658A (en) * | 2004-09-30 | 2006-04-13 | Toshiba Corp | Totally enclosed motor for vehicle |
| CN101309036A (en) * | 2008-07-15 | 2008-11-19 | 南阳防爆集团有限公司 | Explosion isolation type low-voltage explosion-proof power generator |
| CN103339836A (en) * | 2011-02-04 | 2013-10-02 | 依必安-派特穆尔芬根股份有限两合公司 | Direct current electric motor in an explosion proof design |
| CN102916549A (en) * | 2011-08-04 | 2013-02-06 | 湖北毅源科技开发有限公司 | Explosion-proof brushless DC motor |
| CN202190198U (en) * | 2011-08-17 | 2012-04-11 | 南阳防爆集团股份有限公司 | Explosionproof three-phase asynchrounous motor satisfying requirement of dIICT4 explosionrproof level |
| CN102290941A (en) * | 2011-09-02 | 2011-12-21 | 南阳防爆集团股份有限公司 | High-pressure explosion-proof type three-phase asynchronous motor |
| CN202424448U (en) * | 2012-02-29 | 2012-09-05 | 河南省正大防爆电机有限公司 | High-efficiency explosion-proof three-phase asynchronous motor |
| CN102832742A (en) * | 2012-09-18 | 2012-12-19 | 东风汽车股份有限公司 | Mining explosion-proof generator integrated with cooling system |
| CN203243153U (en) * | 2013-05-13 | 2013-10-16 | 湖北毅源科技开发有限公司 | Explosion-proof motor case |
| CN203278579U (en) * | 2013-05-24 | 2013-11-06 | 钟祥市新宇机电制造有限公司 | Flameproof high-efficiency energy-saving three-phase asynchronous vibration motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015116037A (en) | 2015-06-22 |
| CN104716769A (en) | 2015-06-17 |
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