WO1993007670A1 - Cooled motor and its jacket - Google Patents
Cooled motor and its jacket Download PDFInfo
- Publication number
- WO1993007670A1 WO1993007670A1 PCT/JP1992/001288 JP9201288W WO9307670A1 WO 1993007670 A1 WO1993007670 A1 WO 1993007670A1 JP 9201288 W JP9201288 W JP 9201288W WO 9307670 A1 WO9307670 A1 WO 9307670A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid
- cooling
- jacket
- hole
- casing
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/14—Casings; Enclosures; Supports
-
- 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
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
- H02K2205/09—Machines characterised by drain passages or by venting, breathing or pressure compensating means
Definitions
- the present invention relates to a liquid cooling structure of an electric motor such as an induction motor.
- the present invention relates to a jacket for cooling a stator and a method for manufacturing the same, and an improvement in the structure of a liquid cooling motor using the jacket.
- a liquid cooling pipeline 2 is provided in the casing 1, and the casing 1 itself is provided. Attempts have been made to use a liquid-cooled motor that uses a cooling jacket as a cooling unit in Step 3.
- the casing 1 is usually made of an aluminum alloy sand material, and the housings 4 and 5 mounted on the front and rear surfaces of the casing 1 are individually provided with ordinary bolts 6.
- the nest 7 is always present inside or on the surface of the meat portion, and when the case 1 has a liquid structure, liquid leakage easily occurs.
- the nest 7 is exposed on the inner surface or the end surface which is the machined surface, and liquid leakage easily occurs from this portion.
- a process such as immersing the molded casing 1 in a special sealant, which is troublesome and costly. Connected to the web.
- the front and rear housings are fixed to the casing 1 with ordinary bolts 6, so that at least eight bolts 6 are used, which requires a large number of assembly steps and bolts 6, 6. Care must be taken to ensure uniform tightening because the tightening torque varies.
- An object of the present invention is to provide a liquid-cooled motor that improves the reliability of a liquid-cooled motor against liquid leakage, reduces the number of assembly steps, and improves cooling efficiency, and a jacket thereof.
- the present invention firstly extrudes a billet of aluminum alloy, cuts it out, obtains a jacket provided with a pipe through which a coolant passes, and converts this into a stator. Cooling jacket or casing. Then, the front housing is arranged on the front of the jacket and the rear housing is arranged on the rear, and these are tightened with tie bolts extending from the front housing to the rear housing, and fastened to form a liquid-cooled motor.
- the front housing and the rear housing are as described above.
- the ring is formed of ferrous metal and has a flange, and the flange is provided with a hole for contributing a bolt or a screw hole for receiving a screw portion at the tip of a tie bolt.
- a hole provided in the jacket formed at the time of the jacket molding is used as a tie bolt tribute hole, and a part of the cross-sectional shape thereof is used as the hole. It is assumed that the tie bolt has been machined into a shape that allows only axial movement of the tie bolt that contributed to the above.
- a plurality of the stolen holes are formed at equal intervals in the circumferential direction of the jacket, and pipes for allowing the coolant to pass therethrough are provided on the left and right sides of each of the stolen holes.
- a large number of cooling fins projecting into the pipe are formed in the pipe.
- the casing of the extruded material provides a nestless aluminum alloy stay cooling jacket.
- the tie bolt fastening reduces the number of assembly steps and reduces the variation in tightening torque.
- the cross-sectional shape of the hole into a shape that allows only the axial movement of the bolt that penetrates the hole, the radial displacement between the casing and the front and rear housings can be effectively prevented. Will be prevented.
- Liquid cooling line 2 has an internal Cooling efficiency can be increased by processing a large number of cooling fins into a shape that protrudes.
- FIG. 1 is a front view showing a cross section taken along line A—A of FIG. 2
- FIG. 2 is a cross-sectional view taken along line B—B of FIG.
- Fig. 3 is a front view showing a section taken along the line C-C of Fig. 1:
- FIG. 1 is a cross-sectional view along one D ⁇ .
- FIG. 1 and 2 show a casing of an induction motor according to the present invention, which is composed of a casing 1, a front housing 4 and a rear housing 5, which are integrally connected by a tie bolt 10.
- FIG. 1 and 2 show a casing of an induction motor according to the present invention, which is composed of a casing 1, a front housing 4 and a rear housing 5, which are integrally connected by a tie bolt 10.
- the casing 1 serves as a cooling jacket for the stator 3 and is formed by cutting a so-called extruded material formed by passing a billet of an aluminum alloy through a die having a predetermined shape.
- the extruded material is extruded from the die into a long tube as a whole, and is extruded with a cross-section as shown in Fig. 2, and symmetrically at each of the four corners where the cross-section is made thick.
- It is equipped with a pair of pipes 2 arranged and a hole for stealing meat.
- the hole 10 is arranged to adjust the wall thickness between the pipes 2 in accordance with the necessity of extrusion molding.
- the conduit 2 and the digging hole 11 are formed penetrating in the longitudinal direction of the extruded material. Therefore, any casing 1 that will be cut out from the pipeline 2 and meat It has the cross section of FIG.
- This pipeline 2 is the pipeline 2 for liquid cooling
- the hole 11 is a hole where the evening elongation 10 contributes in the longitudinal direction (axial direction).
- the liquid cooling pipeline 2 is precision-machined into a shape such that a large number of cooling fins 12 protrude therein.
- the meat stealing hole 11 can move a part of its cross section, and the tie bolt 10 passing through it can move only in the longitudinal direction of the casing 1, and in the radial direction in the cross section of the casing 1. It is processed so that it has a size that will not allow it to move.
- an extruded casing 1 has a pipe 2 having a high cooling efficiency and a burglar hole having a circular cross-section that does not allow a tie bolt to fall.
- the front housing 4 and the rear housing 5 serve to contribute to the low shaft 1 shaft 9 and seal the stay 13 and the rotor (not shown) inside. It is composed of iron and steel.
- the front housing 4 includes a circulation pipe 13 communicating with the liquid cooling pipe 2 on the casing 1 side, and a front flange 14 having a tie bolt 10 tribute hole.
- the rear housing 5 is provided with a screw hole into which the screw section of the inlet / outlet pipe 15 and the tie bolt 10 communicating with the liquid cooling pipe 2 on the casing 1 side is screwed.
- Flange 16 is provided.
- this liquid-cooled motor To assemble this liquid-cooled motor, first put the stay 3 in the casing 1, attach the front and rear housings 4 and 5 to the front and rear surfaces of the casing 1, and install the cooling line of the casing 1. 2 is connected to the circulation pipes 13 and 15 of the front and rear housings 4 and 5 through the 0 ring 17. Next, tie bolts 10 are inserted into the circular cross-sections of the cover holes 11 of the casing 1 from the bolt holes formed in the four corners of the front flange 14 of the front housing 4, respectively. Screw the parts into the screw holes formed at the four corners of the rear flange 16 of the rear housing 5 and tighten each tie port 10 with equal torque.
- a separately provided pump is connected to the inlet / outlet pipe 15 of the rear housing 5 and a cooling medium such as oil is sent to the liquid cooling pipe 2 of the casing 1.
- a cooling medium such as oil is sent to the liquid cooling pipe 2 of the casing 1.
- the evening bolt 10 can be moved in the radial direction of the casing 1 even if it is contributed by using the steal hole 11, the casing 1 and the front and rear are moved by the vibration of the running motor.
- the housings 4 and 5 are displaced relative to each other in the radial direction, and there is no deviation between the stay shaft and the mouth shaft.
- the cross-sectional shapes of the liquid cooling pipeline 2 and the hole 11 are not necessarily required to be as shown in FIG. 2 as long as the above function is exhibited.
- the tie bolt 10 may be a tie bolt nut, and the rear flange 16 (rear housing 5) may be contributed so that it is fixed with a nut.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP92920917A EP0560993B1 (en) | 1991-10-05 | 1992-10-05 | Cooled motor and a method of manufacturing its jacket |
DE69212298T DE69212298T2 (de) | 1991-10-05 | 1992-10-05 | Gekühlter motor und verfahren zur herstellung seinem mantel |
US08/066,067 US5448118A (en) | 1991-10-05 | 1992-10-05 | Liquid cooled motor and its jacket |
KR1019930701284A KR930702094A (ko) | 1991-10-05 | 1992-10-05 | 액냉전동기 및 그 덮개(jacket) |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3/283481 | 1991-10-05 | ||
JP3283481A JPH05103445A (ja) | 1991-10-05 | 1991-10-05 | 液冷電動機およびそのジヤケツト |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993007670A1 true WO1993007670A1 (en) | 1993-04-15 |
Family
ID=17666107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1992/001288 WO1993007670A1 (en) | 1991-10-05 | 1992-10-05 | Cooled motor and its jacket |
Country Status (6)
Country | Link |
---|---|
US (1) | US5448118A (ja) |
EP (1) | EP0560993B1 (ja) |
JP (1) | JPH05103445A (ja) |
KR (1) | KR930702094A (ja) |
DE (1) | DE69212298T2 (ja) |
WO (1) | WO1993007670A1 (ja) |
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IT1038535B (it) * | 1975-05-27 | 1979-11-30 | Gabbiani Dante | Struttura di motore elettrico |
DE3133457A1 (de) * | 1981-08-24 | 1983-03-10 | Knürr-Mechanik für die Elektronik AG, 8000 München | Strangpressprofil-leiste |
JPS60121941A (ja) * | 1983-12-05 | 1985-06-29 | Fanuc Ltd | 液冷モ−タ |
JPS6149637A (ja) * | 1984-08-16 | 1986-03-11 | Fanuc Ltd | 小型モ−タの外被構造の製造方法 |
JPS61121729A (ja) * | 1984-11-14 | 1986-06-09 | Fanuc Ltd | 液冷モ−タ |
JPS61121728A (ja) * | 1984-11-14 | 1986-06-09 | Fanuc Ltd | 液冷モ−タ |
US5229673A (en) * | 1988-02-02 | 1993-07-20 | Fanuc Ltd. | Joint construction of cooling pipes for liquid cooled motor |
JPH0817549B2 (ja) * | 1988-08-19 | 1996-02-21 | ファナック株式会社 | 液冷モータ用冷却液流路構造 |
US4908538A (en) * | 1989-02-28 | 1990-03-13 | Geberth John Daniel Jun | Totally enclosed electric motor |
-
1991
- 1991-10-05 JP JP3283481A patent/JPH05103445A/ja active Pending
-
1992
- 1992-10-05 DE DE69212298T patent/DE69212298T2/de not_active Expired - Fee Related
- 1992-10-05 WO PCT/JP1992/001288 patent/WO1993007670A1/ja active IP Right Grant
- 1992-10-05 EP EP92920917A patent/EP0560993B1/en not_active Expired - Lifetime
- 1992-10-05 US US08/066,067 patent/US5448118A/en not_active Expired - Fee Related
- 1992-10-05 KR KR1019930701284A patent/KR930702094A/ko not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5937854A (ja) * | 1982-08-26 | 1984-03-01 | Fanuc Ltd | 電動機の固定子 |
JPS61170254A (ja) * | 1985-01-24 | 1986-07-31 | Fanuc Ltd | 液冷モ−タ |
JPS62225146A (ja) * | 1986-03-25 | 1987-10-03 | Mitsubishi Electric Corp | 車両用交流発電機 |
JPH01198243A (ja) * | 1988-02-02 | 1989-08-09 | Fanuc Ltd | 液冷モータの冷却用管路接合構造 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0560993A4 * |
Also Published As
Publication number | Publication date |
---|---|
KR930702094A (ko) | 1993-09-08 |
DE69212298D1 (de) | 1996-08-22 |
US5448118A (en) | 1995-09-05 |
EP0560993A4 (en) | 1994-06-08 |
EP0560993A1 (en) | 1993-09-22 |
EP0560993B1 (en) | 1996-07-17 |
JPH05103445A (ja) | 1993-04-23 |
DE69212298T2 (de) | 1996-11-21 |
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