CN106026501A - Novel motor end cover of full-closed structure - Google Patents
Novel motor end cover of full-closed structure Download PDFInfo
- Publication number
- CN106026501A CN106026501A CN201610661040.XA CN201610661040A CN106026501A CN 106026501 A CN106026501 A CN 106026501A CN 201610661040 A CN201610661040 A CN 201610661040A CN 106026501 A CN106026501 A CN 106026501A
- Authority
- CN
- China
- Prior art keywords
- annular boss
- end cap
- face
- end cover
- cap body
- 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
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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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
- H02K5/10—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
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention relates to permanent magnet motor end cover structures, in particular to a novel motor end cover of a full-closed structure. The novel motor end cover solves the problems that under the specific temperature rising requirement, an existing permanent magnet motor is large in design difficulty, poor in operational reliability and complex in manufacturing process. The novel motor end cover of the full-closed structure comprises an end cover body and an air cylinder. A plurality of front cylindrical bosses are arranged on the front portion of the inner side face of the end cover body. A plurality of back cylindrical bosses are arranged on the back portion of the inner side face of the end cover body. A first annular boss and a second annular boss are arranged on the front end face of the end cover body. The second annular boss is located on the inner side of the first annular boss, and a labyrinth seal is arranged on the front end face of the second annular boss. An axial air inlet hole and an axial air outlet hole penetrate through the end face of the end cover body. The axial air inlet hole is located on the inner side of the second annular boss, the axial air outlet hole is located between the second annular boss and the axial air inlet hole, and an annular positioning pin groove is formed in the inner side face of the end cover body. The novel motor end cover of the full-closed structure is applicable to a permanent magnet motor.
Description
Technical field
The present invention relates to magneto end cover structure, a kind of novel full-enclosed structure electric motor end cap.
Background technology
At present, magneto has become an important development direction of novel high-efficiency and energy-saving motor.But practice have shown that, existing magneto is limited due to its end cover structure, and there are the following problems: one, and existing magneto end cover structure lacks bearing cooling structure, causes bearing temperature rise higher, thus causes magneto design difficulty under specific temperature increase requirement big.Its two, existing magneto end cover structure lacks the sealing structure between rotor fan, causes foreign body to be easily accessible internal rotor, thus causes magneto operational reliability poor.Its three, installed by bolt between existing magneto end cover structure and inside cap, cause installation difficulty big, the manufacturing process thus causing magneto is complicated.Based on this, it is necessary to invent a kind of brand-new magneto end cover structure, with the problem solving existing magneto design difficulty being big under specific temperature increase requirement, operational reliability is poor, manufacturing process is complicated.
Summary of the invention
The problem that the present invention is to solve existing magneto design difficulty is big under specific temperature increase requirement, operational reliability is poor, manufacturing process is complicated, it is provided that a kind of novel full-enclosed structure electric motor end cap.
The present invention adopts the following technical scheme that realization:
A kind of novel full-enclosed structure electric motor end cap, including end cap body, air duct；
Wherein, the medial surface front portion of end cap body is provided with several front cylindrical bosses, and each front cylindrical boss circumferentially equidistant arrangement；The medial surface rear portion of end cap body is provided with cylindrical boss after several, and cylindrical boss circumferentially equidistant arrangement after each；The front end face of end cap body is provided with first annular boss and the second annular boss；Second annular boss is positioned at the inner side of first annular boss, and the front end face of the second annular boss is provided with labyrinth seal；The end face of end cap body is through offers air inlet through hollow shaft hole and Axial-running Out air holes；Air inlet through hollow shaft hole is positioned at the inner side of the second annular boss；Axial-running Out air holes is between the second annular boss and air inlet through hollow shaft hole；The medial surface of end cap body is provided with circular orientation cotter way；
The front end face of the rear end face of air duct and first annular boss seals fixing, and seal bearing respectively with each after the inner face of cylindrical boss fix；In the middle part of the lateral surface of air duct, inner face with each front cylindrical boss is fixed respectively；Through between medial surface and the lateral surface of end cap body of air duct offer several counterbores；The number of counterbore is consistent with the number of front cylindrical boss, and each counterbore one_to_one corresponding is through each front cylindrical boss；A fixing bolt has all been screwed in each counterbore.
During work, as in figure 2 it is shown, the front end face outer ring of end cap body seals fixing with the rear end face outer ring of the support of magneto.The front end face of air duct seals fixing with the rear end face inner ring of the support of magneto.The front end face of the second annular boss is coordinated with the rear end face outer ring sealing of the rotor fan of magneto by labyrinth seal, makes to leave ventilation gap between the rotor fan of magneto and end cap body simultaneously.The medial surface of end cap body is installed together by the lateral surface of circular orientation cotter way with the inside cap of magneto.Specific works process is as follows: under the turning effort of rotor fan, and cooling wind is inhaled into air inlet through hollow shaft hole, and flows through ventilation gap, then discharges through axial exhaust vent.During flowing through ventilation gap, cooling wind carries out heat exchange with the bearing of magneto, is thus taken away by the heat that bearing produces, thus realizes the circulating cooling to bearing.Based on said process, compared with existing magneto end cover structure, one of the present invention novel full-enclosed structure electric motor end cap is by using brand new, possesses following advantage: one, the present invention is by setting up bearing cooling structure (i.e. air inlet through hollow shaft hole and Axial-running Out air holes), achieve the bearing to magneto and be circulated cooling, thereby dramatically reduce bearing temperature rise, so that magneto design difficulty under specific temperature increase requirement is greatly reduced.They are two years old, the present invention is by setting up the sealing structure (i.e. with the second annular boss of labyrinth seal) between rotor fan, achieve between bearing cooling air duct and rotor is completely isolated, thus effectively prevent foreign body and be easily accessible internal rotor, so that magneto operational reliability is higher.Its three, no longer installed by bolt between the present invention and inside cap, but installed by circular orientation cotter way, thus significantly reduce installation difficulty, so that the manufacturing process of magneto is simpler.
Present configuration rationally, design problem that is ingenious, that efficiently solve existing magneto design difficulty is big under specific temperature increase requirement, operational reliability is poor, manufacturing process is complicated, it is adaptable to magneto.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is that the duty of the present invention is with reference to figure.
In figure: 1-end cap body, 2-air duct, cylindrical boss before 3-, cylindrical boss after 4-, the first annular boss of 5-, 6-the second annular boss, 7-air inlet through hollow shaft hole, 8-Axial-running Out air holes, 9-circular orientation cotter way, 10-fixes bolt, the support of 11-magneto, the rotor fan of 12-magneto, the inside cap of 13-magneto, the bearing of 14-magneto.
Detailed description of the invention
A kind of novel full-enclosed structure electric motor end cap, including end cap body 1, air duct 2；
Wherein, the medial surface front portion of end cap body 1 is provided with several front cylindrical bosses 3, and each front cylindrical boss 3 circumferentially equidistant arrangement；The medial surface rear portion of end cap body 1 is provided with cylindrical boss 4 after several, and cylindrical boss 4 circumferentially equidistant arrangement after each；The front end face of end cap body 1 is provided with first annular boss 5 and the second annular boss 6；Second annular boss 6 is positioned at the inner side of first annular boss 5, and the front end face of the second annular boss 6 is provided with labyrinth seal；The end face of end cap body 1 is through offers air inlet through hollow shaft hole 7 and Axial-running Out air holes 8；Air inlet through hollow shaft hole 7 is positioned at the inner side of the second annular boss 6；Axial-running Out air holes 8 is between the second annular boss 6 and air inlet through hollow shaft hole 7；The medial surface of end cap body 1 is provided with circular orientation cotter way 9；
The front end face of the rear end face of air duct 2 and first annular boss 5 seals fixing, and seal bearing respectively with each after the inner face of cylindrical boss 4 fix；In the middle part of the lateral surface of air duct 2, inner face with each front cylindrical boss 3 is fixed respectively；Through between medial surface and the lateral surface of end cap body 1 of air duct 2 offer several counterbores；The number of counterbore is consistent with the number of front cylindrical boss 3, and each counterbore one_to_one corresponding is through each front cylindrical boss 3；A fixing bolt 10 has all been screwed in each counterbore.
When being embodied as, the number in described air inlet through hollow shaft hole 7 is several, and each air inlet through hollow shaft hole 7 circumferentially equidistant arrangement；The number of described Axial-running Out air holes 8 is several, and each Axial-running Out air holes 8 circumferentially equidistant arrangement.Described end cap body 1, air duct 2 all use spheroidal graphite cast-iron to make.
Claims (3)
1. a novel full-enclosed structure electric motor end cap, it is characterised in that: include end cap body (1), air duct (2)；
Wherein, the medial surface front portion of end cap body (1) is provided with several front cylindrical bosses (3), and each front cylindrical boss (3) circumferentially equidistant arrangement；The medial surface rear portion of end cap body (1) is provided with cylindrical boss (4) after several, and cylindrical boss (4) circumferentially equidistant arrangement after each；The front end face of end cap body (1) is provided with first annular boss (5) and the second annular boss (6)；Second annular boss (6) is positioned at the inner side of first annular boss (5), and the front end face of the second annular boss (6) is provided with labyrinth seal；The end face of end cap body (1) is through offers air inlet through hollow shaft hole (7) and Axial-running Out air holes (8)；Air inlet through hollow shaft hole (7) is positioned at the inner side of the second annular boss (6)；Axial-running Out air holes (8) is positioned between the second annular boss (6) and air inlet through hollow shaft hole (7)；The medial surface of end cap body (1) is provided with circular orientation cotter way (9)；
The front end face of the rear end face of air duct (2) and first annular boss (5) seals fixing, and seal bearing respectively with each after the inner face of cylindrical boss (4) fix；In the middle part of the lateral surface of air duct (2), inner face with each front cylindrical boss (3) is fixed respectively；Through between medial surface and the lateral surface of end cap body (1) of air duct (2) offer several counterbores；The number of counterbore is consistent with the number of front cylindrical boss (3), and each counterbore one_to_one corresponding is through each front cylindrical boss (3)；A fixing bolt (10) has all been screwed in each counterbore.
One the most according to claim 1 novel full-enclosed structure electric motor end cap, it is characterised in that: the number of described air inlet through hollow shaft hole (7) is several, and each air inlet through hollow shaft hole (7) circumferentially equidistant arrangement；The number of described Axial-running Out air holes (8) is several, and each Axial-running Out air holes (8) circumferentially equidistant arrangement.
One the most according to claim 1 and 2 novel full-enclosed structure electric motor end cap, it is characterised in that: described end cap body (1), air duct (2) all use spheroidal graphite cast-iron to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610661040.XA CN106026501B (en) | 2016-08-13 | 2016-08-13 | A kind of full-enclosed structure electric motor end cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610661040.XA CN106026501B (en) | 2016-08-13 | 2016-08-13 | A kind of full-enclosed structure electric motor end cap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106026501A true CN106026501A (en) | 2016-10-12 |
| CN106026501B CN106026501B (en) | 2018-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610661040.XA Active CN106026501B (en) | 2016-08-13 | 2016-08-13 | A kind of full-enclosed structure electric motor end cap |
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| Country | Link |
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| CN (1) | CN106026501B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687623A (en) * | 2018-12-07 | 2019-04-26 | 中车永济电机有限公司 | A kind of insulated end cover of wind-guiding |
| CN115940479A (en) * | 2023-03-15 | 2023-04-07 | 江苏东成工具科技有限公司 | Motor sealing device and electric tool thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201303284Y (en) * | 2008-11-08 | 2009-09-02 | 永济新时速电机电器有限责任公司 | Flameproof direct-drive permanent-magnet synchronous motor |
| CN201303285Y (en) * | 2008-11-08 | 2009-09-02 | 永济新时速电机电器有限责任公司 | Flameproof type permanent magnet synchronous motor |
| CN201369658Y (en) * | 2008-12-13 | 2009-12-23 | 永济新时速电机电器有限责任公司 | Variable-frequency permanent magnet synchronous motor |
| CN202374096U (en) * | 2011-12-20 | 2012-08-08 | 重庆赛力盟电机有限责任公司 | Sealing structure for motor bearing |
| JP2013198339A (en) * | 2012-03-22 | 2013-09-30 | Toshiba Mitsubishi-Electric Industrial System Corp | Rotary electric machine and sealing mechanism |
| CN104702017A (en) * | 2015-04-09 | 2015-06-10 | 永济新时速电机电器有限责任公司 | Permanent magnet generator for hybrid power motor train unit |
-
2016
- 2016-08-13 CN CN201610661040.XA patent/CN106026501B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201303284Y (en) * | 2008-11-08 | 2009-09-02 | 永济新时速电机电器有限责任公司 | Flameproof direct-drive permanent-magnet synchronous motor |
| CN201303285Y (en) * | 2008-11-08 | 2009-09-02 | 永济新时速电机电器有限责任公司 | Flameproof type permanent magnet synchronous motor |
| CN201369658Y (en) * | 2008-12-13 | 2009-12-23 | 永济新时速电机电器有限责任公司 | Variable-frequency permanent magnet synchronous motor |
| CN202374096U (en) * | 2011-12-20 | 2012-08-08 | 重庆赛力盟电机有限责任公司 | Sealing structure for motor bearing |
| JP2013198339A (en) * | 2012-03-22 | 2013-09-30 | Toshiba Mitsubishi-Electric Industrial System Corp | Rotary electric machine and sealing mechanism |
| CN104702017A (en) * | 2015-04-09 | 2015-06-10 | 永济新时速电机电器有限责任公司 | Permanent magnet generator for hybrid power motor train unit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687623A (en) * | 2018-12-07 | 2019-04-26 | 中车永济电机有限公司 | A kind of insulated end cover of wind-guiding |
| CN115940479A (en) * | 2023-03-15 | 2023-04-07 | 江苏东成工具科技有限公司 | Motor sealing device and electric tool thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106026501B (en) | 2018-02-16 |
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