CN104716769A - Rotary motor - Google Patents
Rotary motor Download PDFInfo
- Publication number
- CN104716769A CN104716769A CN201410356716.5A CN201410356716A CN104716769A CN 104716769 A CN104716769 A CN 104716769A CN 201410356716 A CN201410356716 A CN 201410356716A CN 104716769 A CN104716769 A CN 104716769A
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- CN
- China
- Prior art keywords
- rotating machine
- electric rotating
- main body
- periphery
- machine main
- 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.)
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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
Landscapes
- 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 pressure-proof and explosion-proof rotary motor is provided. A plurality of cooling pipes are arranged in a pressure vessel for receiving a rotary motor main body. The pressure-proof and explosion-proof rotary motor provided by the utility model can restrain an internal pressure into a low structure even if an explosion pressure is generated inside the motor. The pressure vessel (14) surrounds the periphery of the rotary motor main body (13), and the rotary motor main body (13) is provided with a rotor core (11) disposed around a rotating shaft (16) and a stator core (12) arranged by a means of keeping a specified clearance with the periphery of the rotor core (11). A plurality of cooling pipes (19) are arranged in an axial direction in the space of the central periphery surrounding the periphery of the rotary motor main body (13) inside the pressure vessel (14). With utilizing central periphery splitter plates (20) arranged in the middle of the cooling pipes (19), the space of the central periphery of the cooling pipes (19) arranged inside the pressure vessel (14) is divided into front and rear portions in the length direction of the cooling pipes (19).
Description
Technical field
Embodiments of the present invention relate to a kind of electric rotating machine many cooling water pipes being arranged on the pressure-resistant explosion-proof in pressure vessel, and this pressure vessel is accommodated electric rotating machine main body.
Background technology
As the one of electric rotating machine, there is the electric rotating machine of so-called pressure-resistant explosion-proof, the electric rotating machine main body of stator of the periphery having rotor and be arranged on this rotor is housed in pressure vessel by the electric rotating machine of this pressure-resistant explosion-proof, even if create blast pressure in inside, this blast pressure also can not be made to propagate into outside.In the electric rotating machine of this pressure-resistant explosion-proof, when the pressure produced in inside when blasting increases, in order to ensure sufficient explosion-proof, needing the plate pressure making pressure vessel to increase, causing the maximization of shape and weight on the whole.In order to solve this problem, as shown in Japanese Patent Laid-Open 8 – No. 196049 publications, propose a kind of internal structure is improved and scheme for realizing lightness.
Summary of the invention
The technical problem to be solved in the present invention is, even if provide a kind of to create blast pressure in inside, also internal pressure can be suppressed the electric rotating machine of the pressure-resistant explosion-proof for lower structure.
The feature of the electric rotating machine of the pressure-resistant explosion-proof of embodiments of the present invention is, comprise: electric rotating machine main body, this electric rotating machine main body have the periphery being arranged on rotating shaft rotor core, with the stator core of the cylindrical shape keeping the mode in the gap specified to arrange with the periphery of this rotor core; Pressure vessel, the surrounding of above-mentioned electric rotating machine main body is surrounded by this pressure vessel; And many cooling water pipes, these cooling water pipes along in the pericentral space being looped around the periphery of above-mentioned electric rotating machine main body of the axial arrangement of above-mentioned rotating shaft in above-mentioned pressure vessel, are provided with demarcation strip around the center above-mentioned pericentral space being divided into the front and rear part of above-mentioned length direction in the centre position of the length direction of above-mentioned cooling water pipe respectively.
Accompanying drawing explanation
Fig. 1 is the partial sectional view of the electric rotating machine of the pressure-resistant explosion-proof representing one embodiment of the present invention.
Embodiment
Below, with reference to accompanying drawing, embodiments of the present invention are described in detail.
Fig. 1 represents the cross section structure of the electric rotating machine of the pressure-resistant explosion-proof of present embodiment.This electric rotating machine be utilize pressure vessel 14 with and electric rotating machine main body 13 structure that keeps the mode at interval the surrounding of electric rotating machine main body 13 to be surrounded, 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 rotating shaft 16.Utilize the support of bearing 17 be arranged on the end face of pressure vessel 14, rotating shaft 16 is rotatably supported rotating shaft 16.Stator core 12 is formed as cylindric, and the inner peripheral surface of stator core 12 is set to the gap keeping with the periphery of rotor core 11 specifying.
Pressure vessel 14 is made securely, also can bear at the blast pressure of pressure vessel 14 inside generation to have, as mentioned above, pressure vessel 14 with and electric rotating machine main body 13 keep the mode at interval, the surrounding of electric rotating machine main body 13 is surrounded.And, the pericentral space being looped around electric rotating machine main body 13 periphery in this pressure vessel 14 is (in the example at figure, the mainly superjacent air space of electric rotating machine main body 13) in, the axial arrangement respectively along rotating shaft 16 has many cooling water pipes 19.The outside of pressure vessel 14 is led at the two ends of these cooling water pipes 19, makes the coolants such as air from external aeration, is cooled by heat exchange by equipment.
The outer peripheral portion of these many cooling water pipes 19 is provided with demarcation strip 20.That is, this demarcation strip 20 is in the length direction centre position of cooling water pipe 19, the pericentral space be provided with in the pressure vessel 14 of many cooling water pipes 19 is divided into the front and rear part of length direction.Thus, this demarcation strip 20 is called demarcation strip around center.Around this center demarcation strip 20 by between each cooling water pipe 19 periphery in the pericentral space in above-mentioned pressure vessel 14, cut off along the air-flow of the length direction of cooling water pipe 19.
In addition, in the gap of the periphery of rotor core 11 and the inner circumferential of stator core 12 that form electric rotating machine main body 13, be also provided with the separated plate 21 of this separated.That is, this separated plate 21 between above-mentioned gap, above-mentioned separated is the front and rear part of the length direction of rotating shaft 16 by the position of the length direction pars intermedia of rotating shaft 16.The air-flow that length direction along rotating shaft 16 flows by this separated plate 21 in above-mentioned gap cuts off.Because the side's component forming this gap is fixed, and the opposing party's component carries out spinning movement, therefore can guarantee minimum air void, while the relativeness keeping these two components, in the mode that the air flowed in gap is cut off, above-mentioned gap can be closed.
In said structure, in the electric rotating machine of this pressure-resistant explosion-proof, in order to confirm voltage endurance, carry out blasting in the inside of this electric rotating machine, and to the test that blast pressure is when the time comes measured.In this case, on the basis keeping stronger voltage endurance, importantly the rising of the blast pressure in electric rotating machine is suppressed for lower as far as possible.Owing to this blast pressure being suppressed, for lower, therefore effectively to prevent the flame propagation sharply when measuring blast pressure.
At this, in the inside of electric rotating machine, there is the space that the gap of gap between many cooling water pipes 19 and rotor core 11 and stator core 12 etc. is narrow.When blasting in electric rotating machine, in the area of space that these are narrow, there is the tendency risen in the flow velocity of flame.When not arranging above-mentioned demarcation strip 20,21, the flame produced along with blast is in these narrow area of space, and the speed changed into more than with velocity of sound carries out the burning form of the fierceness propagated with shock wave, create higher pressure.Therefore, when measuring the blast pressure of the benchmark becoming pressure-resistant explosion-proof electric rotating machine, higher pressure can be measured, in the design of the frame strength of pressure vessel 14 grade, can make the thickness of slab increase of these frameworks etc., maximize and the increase of weight, be disadvantageous.
Therefore, in the present embodiment, by arranging demarcation strip 20,21, by the flame failure in above-mentioned narrow area of space, rise to prevent the flow velocity of this flame.Consequently, reliably can prevent the flame produced along with blast from carrying out situation about propagating with shock wave with speed more than velocity of sound, can suppress pressure increase.When measuring the blast pressure of the benchmark becoming pressure-resistant explosion-proof electric rotating machine, can suppress pressure increase, need not in the design of the frame strength of pressure vessel 14 grade, making the thickness of slab increase etc. of these frameworks, is favourable.
In addition, in the above-described embodiment, be provided with demarcation strip 20 and separated plate 21 around center, but also any one demarcation strip can be set.In this case, the effect preventing pressure increase can also be produced.
In addition, separated plate 21 also can be separately positioned in the gap of rotor core 11 and stator core 12, axial many places.When forming like this, can pressure increase when producing blast pressure more effectively be suppressed.
Above some execution modes of the present invention are illustrated, but these execution modes just propose as an example, and not intended to be limits scope of invention.The execution mode of this innovation can be implemented with other various form, can carry out various omissions, replacement, change in the scope of purport not departing from invention.These execution modes and distortion thereof are included in scope of invention and purport, and the invention be included in described in claims and with in the scope of its equalization.
Claims (4)
1. an electric rotating machine for pressure-resistant explosion-proof, is characterized in that, comprising:
Electric rotating machine main body, this electric rotating machine main body have the periphery being arranged on rotating shaft rotor core, with the stator core of the cylindrical shape keeping the mode in the gap specified to arrange with the periphery of this rotor core;
Pressure vessel, this pressure vessel with and described electric rotating machine main body keep the mode at interval the surrounding of this electric rotating machine main body to be surrounded; And
Many cooling water pipes, these cooling water pipes respectively along in the pericentral space being looped around the periphery of described electric rotating machine main body of the axial arrangement of described rotating shaft in described pressure vessel,
The centre position of the length direction of described cooling water pipe is provided with demarcation strip around the center described pericentral space being divided into the front and rear part of described length direction.
2. an electric rotating machine for pressure-resistant explosion-proof, is characterized in that, comprising:
Electric rotating machine main body, this electric rotating machine main body have the periphery being arranged on rotating shaft rotor core, with the stator core of the cylindrical shape keeping the mode in the gap specified to arrange with the periphery of this rotor core;
Pressure vessel, the surrounding of described electric rotating machine main body is surrounded by this pressure vessel; And
Many cooling water pipes, these cooling water pipes respectively along in the pericentral space being looped around the periphery of described electric rotating machine main body of the axial arrangement of described rotating shaft in described pressure vessel,
The length direction pars intermedia of described rotating shaft is provided with separated plate, and the separated between the periphery of described rotor core and the inner circumferential of described stator core is the front and rear part of this length direction by this separated plate.
3. an electric rotating machine for pressure-resistant explosion-proof, is characterized in that, comprising:
Electric rotating machine main body, this electric rotating machine main body have the periphery being arranged on rotating shaft rotor core, with the stator core of the cylindrical shape keeping the mode in the gap specified to arrange with the periphery of this rotor core;
Pressure vessel, the surrounding of described electric rotating machine main body is surrounded by this pressure vessel; And
Many cooling water pipes, these cooling water pipes respectively along in the pericentral space being looped around the periphery of described electric rotating machine main body of the axial arrangement of described rotating shaft in described pressure vessel,
The centre position of the length direction of described cooling water pipe is provided with demarcation strip around the center described pericentral space being divided into the front and rear part of described length direction,
The length direction pars intermedia of described rotating shaft is provided with separated plate, and the separated between the periphery of described rotor core and the inner circumferential of described stator core is the front and rear part of this length direction by this separated plate.
4. the electric rotating machine of pressure-resistant explosion-proof as claimed in claim 2 or claim 3, is characterized in that,
Described separated plate is separately positioned in the gap between the periphery of described rotor core and the inner circumferential of described stator core, many places on the length direction of described rotating shaft.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013256073A JP2015116037A (en) | 2013-12-11 | 2013-12-11 | Rotary electric machine |
| JP2013-256073 | 2013-12-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104716769A true CN104716769A (en) | 2015-06-17 |
| CN104716769B 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 |
|---|---|
| CN104716769B (en) | 2017-05-31 |
| JP2015116037A (en) | 2015-06-22 |
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