US20050121988A1 - Alternator and method of manufacture - Google Patents
Alternator and method of manufacture Download PDFInfo
- Publication number
- US20050121988A1 US20050121988A1 US10/973,205 US97320504A US2005121988A1 US 20050121988 A1 US20050121988 A1 US 20050121988A1 US 97320504 A US97320504 A US 97320504A US 2005121988 A1 US2005121988 A1 US 2005121988A1
- Authority
- US
- United States
- Prior art keywords
- bearing
- housing member
- wall portion
- frame
- outer race
- 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.)
- Abandoned
Links
Images
Classifications
-
- 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
- H02K5/15—Mounting arrangements for bearing-shields or end plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/042—Housings for rolling element bearings for rotary movement
- F16C35/045—Housings for rolling element bearings for rotary movement with a radial flange to mount the housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/067—Fixing them in a housing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/01—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for shielding from electromagnetic fields, i.e. structural association with shields
- H02K11/014—Shields associated with stationary parts, e.g. stator cores
- H02K11/0141—Shields associated with casings, enclosures or brackets
-
- 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
- H02K5/08—Insulating casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
- F16C2226/30—Material joints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/002—Conductive elements, e.g. to prevent static electricity
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/16—Synchronous generators
- H02K19/36—Structural association of synchronous generators with auxiliary electric devices influencing the characteristic of the generator or controlling the generator, e.g. with impedances or switches
-
- 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
- H02K5/14—Means for supporting or protecting brushes or brush holders
- H02K5/141—Means for supporting or protecting brushes or brush holders for cooperation with slip-rings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49009—Dynamoelectric machine
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49009—Dynamoelectric machine
- Y10T29/49012—Rotor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Motor Or Generator Frames (AREA)
- Manufacture Of Motors, Generators (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Synchronous Machinery (AREA)
Abstract
An alternator has a molded plastic, electrically conductive D.E. frame in which a sealed bearing is molded in place with the formation of the D.E. frame 14. When the D.E. frame is removed from its plastics injection mold and while the frame is still hot, the stator is installed in the D.E. frame and the frame allowed to cool and constrict about the stator. The companion S.R.E. frame is preferably fabricated of non-conductive plastics material.
Description
- This application division of U.S. continuation application Ser. No. 10/794,908, filed Mar. 5, 2004 which claims priority to U.S. application Ser. No. 10/098,782, filed Mar. 14, 2002 which claims priority to U.S. provisional patent application Ser. No. 60/276,723, filed Mar. 16, 2001.
- This invention relates generally to alternators for internal combustion engine applications and the like and to methods of manufacturing such alternators, and further to the manufacture of molded plastic housings for electrical devices generally having a bearing for supporting a rotating shaft.
- Alternators, particularly those for automotive engine applications, are fabricated with drive-end (D.E.) and a stator-regulator-end (S.R.E.) frames which house a stator and rotor and support the other components that make up the alternator. The stator is normally fitted in the D.E. frame. Both frames are typically cast from aluminum and have several surfaces that require secondary machining to prepare the surfaces to support a corresponding component of the alternator. One of those surfaces is the stator bore of the D.E. frame which supports the stator. Once machined, the D.E. frame is heated to expand the stator bore at which point the stator is inserted into the D.E. frame and the frame then cooled to shrink the D.E. frame about the stator to retain the stator in place. The machining and heating operations add to the cost of manufacturing such alternators.
- Aluminum is typically employed for the D.E. frame for its ability to provide a ground path for the stator and for its strength and dimensional stability at elevated operating temperatures of the stator.
- Included among the other machined surfaces of such aluminum D.E. frames is a bearing well whose inner surface is machined to receive a sealed D.E. roller bearing with a press fit. The well includes a lip of aluminum material extending about the opening of the bearing well which, after installation of the bearing, is spun over onto the outer race to capture the bearing axially within the well. The secondary machining and lip deformation operations further add to the cost of alternators.
- Moreover, when it is desired to rebuild a spent alternator, the spun-over lip must be ground off and the D.E. frame modified with a retro-fit metal retainer fastened to the bearing well in position of the former spun-overlip. Such process involves remachining of the bearing well wall, removal of the spun-overlip and machining of the frame to receive the retainer ring, and the provision and fastening of the retainer ring to make use of the otherwise spent, aluminum D.E. frame. Such adds cost to the rebuilding of spent alternators.
- Other surfaces that require machining are the mating surfaces of the D.E. and S.R.E. frames, which are brought together and then secured by fasteners. Also machined are several bores which are fitted with pressed steel bushings for mounting the alternator in service. Such dissimilar metal materials (i.e., steel against aluminum) present issues of corrosion which must be contended with.
- U.S. Pat. No. 4,705,983 discloses an alternator having, as part of its structure, an end shield fabricated of insulating plastics material and formed with a central molded hub that, after forming, is provided to seat a roller bearing.
- U.S. Pat. No. 5,982,057 discloses molding a plastics housing in place about a stator of an electric motor along with a molded-in bearing bush. Following molding, a roller bearing is installed in the bearing bush. Provision of the molded-in bearing bush adds cost and complexity to the structure.
- It is an object of the invention to overcome or greatly minimize the foregoing limitations in connection with alternators and other electrical devices employing a plastic housing to support a bearing of the art.
- According to one aspect of the invention, an alternator is provided comprising a D.E. frame having an electrical grounding portion; a stator secured to the D.E. frame remote from the grounding portion; a D.E. bearing secured to the D.E. frame; a S.R.E. frame secured to the D.E. frame, a S.R.E. bearing secured to the S.R.E. frame, a rotor housed within the D.E. and S.R.E. frames and journaled by the D.E. and S.R.E. bearings for rotation relative to the rotor, and wherein the D.E. frame is fabricated of plastics material and includes an electrically conductive ground circuit coupling the stator electrically to the ground portion. This aspect of the invention has the advantage of providing a plastics D.E. housing which is less costly and lighter weight than the aluminum counterparts and yet is provided with a ground path for the stator.
- According to a further aspect of the invention, a housing assembly, such as the D.E. or S.R.E. frame of an alternator, includes a sealed roller bearing having inner and outer races and roller elements therebetween, and a molded plastics housing having a bearing well within which the sealed roller bearing is molded in place. The bearing well includes an inner wall surface engaging an outer surface of the outer race, and axial restraining portions which extend radially inwardly from the inner wall of the well in overlying relation to axially opposite end faces of the outer face for restraining the bearing axially against removal from the bearing well. According to a related method of the invention, during molding, the bearing is maintained at a temperature in the mold below that which would cause heat damage to the bearing.
- This aspect of the invention has the advantage of providing a simple, effective way of securing a sealed, heat-sensitive roller bearing within a housing, such as an alternator frame, which avoids machining or pressing operations or provision of a premolded bearing bush. The same technique and features are applicable to other plastics housings of electrical devices in which the bearing is molded in place in the housing.
- According to yet another aspect of the invention, an alternator is formed according to a method in which the D.E. frame is molded from plastics material and is removed from the mold. While still hot, the stator is installed in the D.E. frame and the plastics material allowed to cool to constrict about the stator to secure the stator in place in the D.E. frame.
- According to still a further aspect of the invention, a ground path is molded in place in a plastic housing of an electrical component to establish a defined electrical path through the plastics housing.
- A presently preferred embodiment of the invention is disclosed in the following description and in the accompanying drawings, wherein:
-
FIG. 1 is an exploded perspective view of an alternator constructed according to a presently preferred embodiment of the invention; -
FIG. 2 is an enlarged elevation view looking into the D.E. frame; -
FIG. 3 is an enlarged, exploded perspective view of the D.E. frame and stator prior to their assembly; -
FIG. 4 is a view likeFIG. 3 following assembly of the stator in the D.E. frame; -
FIG. 5 is an enlarged fragmentary cross-sectional view taken generally along lines 5-5 ofFIG. 2 ; and -
FIG. 6 is an enlarged perspective view of a bearing whose outer race is formed with retaining grooves shown interlocked with retaining ribs of the housing. - Referring initially to
FIG. 1 , an exploded perspective view of analternator 10 is shown constructing according to a presently preferred embodiment of the invention. Thealternator 10 includes ahousing assembly 12 comprised of a drive-end (D.E.)frame 14, and a stator-regulator-end (S.R.E.)frame 16 which are joined atmating flanges bolts 22 to house therein astator 24 and arotor 26. - The D.E.
frame 14 is molded of plastics material and mounts a D.E.bearing 28. The S.R.E.frame 16 is likewise preferably fabricated of plastics material and mounts a corresponding S.R.E.bearing 30. Thebearings FIG. 5 including anouter race 32, aninner race 34 and a plurality of rolling elements, such as the illustratedbearing balls 36, captured between the outer andinner races inner race 34 to rotate relative to theouter race 32.Annular seals 38 span the gap between the inner and outer race to provide a sealed environment to theroller elements 36, which are lubricated withgrease 40. Such sealedroller bearings bearings seals 38 overheat and fail and/or thegrease 40 within thebearings seals 38 and the bearing fails. The critical upper limit operating temperature will vary depending on the type of grease and seals employed in a given bearing, and an understanding of the operating limits are known by those of ordinary skill in the art of alternators and bearings. Thebearings frames rotor 26 extends and is journaled by the bearings. - According to one aspect of the invention, at least the D.E. bearing 28 is molded in-place with the formation of the D.E.
frame 14 and preferably the S.R.E.frame 16. As shown best inFIG. 5 , thebearing 28 is inserted in a mold (not shown) configured to form the D.E.frame 14 into which hot, flowable plastics material is introduced which, as shown, flows around the bearing 28 to capture thebearing 28 within a bearing well 42 of the D.E.frame 14. More specifically, the bearing well 42 is comprised of a cylindrical hub or bearing wellball portion 44 projecting axially inwardly from anend wall 46 of the D.E.frame 14. Thehub 44 has aninner wall surface 48 which engages an outerperipheral surface 50 of theouter race 32. An annular retaining portion orflange 52 molded as one piece with the D.E.frame 14 projects radially inwardly from theinner wall surface 48 on opposite axial sides of the D.E. bearing 28 in overlying relationship to axially opposite end faces 54, 56 and in radially outer spaced relation to theinner race 34 for restraining the D.E. bearing within the bearing well 42 in both axial directions via upper andlower retaining portions 52, 53 and radially via theinner wall surface 48. In this way, thebearing 28 is captured in place during molding by the structure of the D.E. frame alone. The lower retaining portion 53 forms part of theend wall 46 of the frame and extends from the opening 55 in theend wall 46 to the bearing well wall orhub 44. - As shown in
FIG. 6 , theouter surface 50 of theouter race 32 may be formed with a series of retaininggrooves 58 which are recessed into theouter surface 50. During molding, thegrooves 58 are filled with the plastics material of the D.E.frame 14 to provideinterlocking retaining ribs 60 of the D.E.frame 14. Thegrooves 58 andribs 60 are preferably transverse to the longitudinal axis and lateral plane of theouter race 32, such that the interlockinggrooves 58 andribs 60 crisscross one another and constrain theouter race 32 against longitudinal movement along the axis as well as rotational movement about the axis of theouter race 32. Thegrooves 58 may be ground into theouter surface 50 or provided by other suitable means. The grooves preferably have a depth of about 0.020-0.030 inches and a width of about 0.060 inches. The same technique for molding in place a bearing in a plastic housing is equally applicable to other housing components such as electric starters and the like. - Turning now to
FIGS. 2 and 3 , the D.E.frame 14 has astator hub 62 provided by an outer peripheral wall of theframe 14 formed with an innerstator bearing surface 64 which, in its as-molded state without machining, is sized to engage anouter surface 66 of thestator 24 with sufficient frictional interference to secure thestator 24 within the D.E.frame 14. - According to the invention, the D.E.
frame 14 is molded such that thestator bearing surface 64 has a size in relation to theouter surface 66 of thestator 24 that, when the D.E.frame 14 is cooled to ambient temperature, tightly constricts about and grips theouter surface 66 of thestator 24 to secure thestator 24 in place within the D.E.frame 14. According to a preferred aspect of the invention, the D.E.frame 14 is molded initially without thestator 24. Upon solidification of the plastics material of the D.E.frame 14, but while the D.E.frame 14 is still hot from molding, the D.E.frame 14 is removed from the mold and, while still hot, thestator 24 is inserted into thestator hub 62 of the D.E.frame 14. The temperature, of course, will vary depending upon the material used to form the D.E.frame 14. However, at the temperature of removal from the mold, the heat of the D.E.frame 14 causes thestator bearing surface 64 to be in an expanded state whereby thestator 24 can be inserted into thestator hub 62 with very little effort due to the radial clearance between thestator 24 andstator hub 62. Once installed, the D.E.frame 14 is allowed to cool, which causes thestator bearing surface 64 to constrict tightly about theouter surface 66 of thestator 24, securing thestator 24 both axially and rotatably against movement relative to the D.E.frame 14 and preventing its removal from theframe 14. - Preferably, the inner cylindrical
stator bearing surface 64 is formed with analignment rib 68 which projects radially inwardly from thesurface 64. Thealignment rib 68 extends axially along thesurface 64 of thestator hub 62. Thealignment rib 68 is thus fixed relative to theframe 14 and projects inwardly from thestator bearing surface 64. Theouter surface 66 of thestator 24 is formed with a plurality ofaxial grooves 70, any one of which can receive therib 68. In most cases, thestator 24 will have a preferred angular orientation relative to the D.E.frame 14. As illustrated inFIGS. 3 and 4 , thestator 24 can be marked with avisible alignment indicator 72 positioned such that when aligned with thealignment rib 68 thestator 24 is in the proper angular orientation relative to the D.E.frame 14. As shown inFIG. 4 , during installation of thestator 24 when the D.E.frame 14 is still hot from the mold, theappropriate groove 70 associated with thealignment indicator 72 is guided into position over thealignment rib 68 to quickly, easily and positively orient thestator 24 precisely relative to the D.E. frame so as to eliminate variation between components. - The
stator 24 preferably includes a stack ofmetal laminates 74 andcopper windings 76. - The D.E.
frame 14 is preferably formed with at least one and, as illustrated here, a pair of electrically groundingportions 78 in the form of ears which have molded-in metal bushings orsleeves 80 defining lined bolt holes for received bolts (not shown) which mount thealternator 10 to the frame or other structure of a vehicle or the like and provides, by that connection, a grounding vehicle. Thesleeves 80 are preferably aluminum. - The plastics molded D.E.
frame 14 includes an electrically conductive ground circuit which couples thestator 24 electrically to the groundingportion 78. According to one aspect of the invention, the D.E.frame 14 is molded from an electrically conductive plastics composite material which renders the entire D.E.frame 14 conductive and thus establishing the ground path. Suitable materials are those which can withstand the operating temperature of an alternator while maintaining adequate strength and stability to provide the needed support of the D.E.frame 14. Among the candidate materials are high temperature, heat stabilized polyamide resins having a carbon fiber fill of about 35 to 50 vol % which renders the composite electrically conductive to provide the electrically conductive path from therotor 26 to the groundingportion 78. One such material is manufactured by E.I. du Pont de Nemours (DuPont) under the Zytel® family. Alternatively, or in addition to conduction by the composite material per se, theground path 82 may be provided by an embeddedwire 84 leading to thesleeve 80 and molded in place during the molding of the D.E.frame 14, or anexternal wire 86 added after molding the D.E.frame 14. The same technique for providing a molded-in ground path is applicable to housings of other electrical devices, such as starters and the like. - According to a further aspect of the invention, the S.R.E.
frame 16 is fabricated of a plastics material that is relatively non-conductive in relation to the conductivity of the D.E.frame 14. In other words, the S.R.E.frame 16 is more insulating than electrically conductive in relation to the properties of the D.E.frame 14. The S.R.E.frame 16 may be fabricated of a substantially non-conductive plastics material. A suitable material may comprise 35-50 vol % glass fiber- filled polyamide resin of the Zytel® family. Making the S.R.E.frame 16 from non-electrically conductive plastics material has the advantage of insulating many of the component parts mounted on the S.R.E. frame which normally require special insulating shields and the like to prevent conductive between the components and the usual aluminum S.R.E. frame. Mounted on the backside of the S.R.E.frame 16 is aregulator 88, arectifier 90, and abrush holder assembly 92. When installed, these components are concealed by anend cover 94 which likewise may be plastic. With the non-conductive plastic S.R.E.frame 16, there is no need to electrically insulate theregulator 88 andrectifier 90 from the S.R.E.frame 16, which greatly simplifies and reduces the cost of manufacturing alternators. - The invention further contemplates methods in remanufacturing spent alternators both of the traditional metal frame construction and those of the plastic frame variety of the invention. In either case, the rotor and bearing, along with any other inserts, are removed from the D.E. frame and a new D.E.
frame 14 molded from the plastics material as previously described, preferably including the molded-end bearing 28. The spent plastic D.E.frame 14 can be ground and recycled. Thestator 24 is installed by the same process of inserting it into theframe 14 when theframe 14 is hot out of the mold. - The disclosed embodiment is representative of a presently preferred form of the invention, but is intended to be illustrative rather than definitive thereof. The invention is defined in the claims.
Claims (19)
1. A method of securing a sealed roller bearing having an inner race, an outer race and lubricated rolling elements disposed between the inner and outer races in a molded plastic housing member, comprising:
inserting the sealed bearing in a mold configured to form the housing member;
introducing hot, flowable plastics material into the mold and allowing the material to flow about the outer race of the sealed bearing to fix the sealed bearing in the resultant housing member; and
during molding, maintaining the temperature of the sealed roller bearing at a temperature below which the sealed bearing would be damaged by heat.
2. The method of claim 1 in which the outer race has an outer surface and opposite end faces, and wherein the plastics material flows about the outer surface and end faces during molding to circumferentially and axially encapsulate the outer race.
3. A housing assembly comprising:
a sealed bearing having an inner race, an outer race, and lubricated roller elements disposed between the inner and outer races;
a molded plastics housing body having a bearing well within which said sealed roller bearing is molded in place including an inner wall surface engaging an outer surface of said outer race, and axial restraining portions extending radially inwardly from said inner wall in overlying relation to axially opposite end faces of said outer race for restraining said bearing axially against removal from said bearing wall.
4. A housing assembly, comprising:
a first housing member fabricated of injection molded plastics material;
a second housing member joinable to said first housing member;
said first housing member having an end wall portion and an outer peripheral side wall portion extending from said end wall portion to provide a generally cup-shaped configuration to said first housing member;
a shaft opening formed in said end wall portion in radially inwardly spaced relation to said outer peripheral side wall portion;
a bearing well wall portion extending from said end wall portion to an upper end in surrounding relation to said shaft opening, said bearing wall portion having an inner wall surface spaced from and concentric with said shaft opening;
an annular end flange section of said end wall portion extending between said shaft opening and said inner wall surface of said bearing well wall portion and providing, together with said bearing well portion, a cup-shaped bearing well;
a bearing disposed in said bearing well, said bearing having an outer race engaging said inner wall surface of said bearing well wall portion and said annular end flange section of said end wall portion; and
an annular retaining flange portion molded as one piece with said bearing well wall portion of said first housing member and extending radially inwardly of said inner wall surface of said bearing well wall portion in overlying, confronting relation to said outer race of said bearing to retain said bearing against removal from said bearing well.
5. The housing assembly of claim 4 wherein said outer race of said bearing has a generally cylindrical outer surface and includes a plurality of recesses extending into said outer surface, said bearing well wall portion including interlocking retaining projections extending into said recesses in radially inwardly projecting relation to said inner wall surface of said bearing well wall portion.
6. The housing assembly of claim 5 wherein said recesses of said outer race comprise a series of grooves disposed transverse to a longitudinal axis of said shaft opening.
7. The housing assembly of claim 5 wherein said recesses comprises a plurality of crisscrossing grooves disposed transverse to a longitudinal axis of said shaft opening and transverse to a plane normal to said longitudinal axis.
8. The housing assembly of claim 7 wherein said crisscrossing grooves intersect one another.
9. The housing assembly of claim 7 wherein said interlocking retaining projections fill said grooves.
10. The housing assembly of claim 4 wherein said bearing includes an inner race supported for free rotation relative to said outer race.
11. The housing of claim 4 wherein said bearing comprises a sealed bearing.
12. The housing assembly of claim 11 wherein said sealed bearing includes an inner race spaced from said outer race, a plurality of bearing elements disposed in a space between said inner and outer races, and a seal extending between said inner and outer race and sealing said space from the external environment.
13. A method of making a housing assembly, comprising:
fabricating a first housing member;
fabricating a second housing member by injecting hot plastics material into a mold cavity and molding the plastics material around an outer race of a sealed bearing to secure the outer race to the second housing member while retaining relative rotational movement of an inner race of the bearing.
14. The method of claim 13 , including forming recesses in an outer surface of the outer race and flowing the plastics material into the recesses during molding.
15. The method of claim 14 wherein the recesses are formed by forming a series of crisscrossing grooves in the outer surface and filling such grooves with the plastics material during molding.
16. The method of claim 13 including molding the plastics material around opposite ends of the outer race.
17. The method of claim 15 including spacing the plastics material from the inner race.
18. A housing of an electrical device, comprising:
a housing body molded of plastics material; and
a ground path of conductive material different than that of said plastics material molded in place and embedded in said plastics material.
19. A method of fabricating a plastics housing, comprising:
molding a housing member in a mold to include a wall surface;
removing the molded housing member from the mold and, while the housing member is still hot from the heat of molding, installing a separate piece in the housing member adjacent the wall surface and permitting the housing member to cool and to cause the wall surface to constrict about the separate piece to secure the separate piece to the housing member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/973,205 US20050121988A1 (en) | 2001-03-16 | 2004-10-26 | Alternator and method of manufacture |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US27672301P | 2001-03-16 | 2001-03-16 | |
US10/098,782 US6774518B2 (en) | 2001-03-16 | 2002-03-14 | Alternator and method of manufacture |
US10/794,908 US6849974B2 (en) | 2001-03-16 | 2004-03-05 | Alternator and method of manufacture |
US10/973,205 US20050121988A1 (en) | 2001-03-16 | 2004-10-26 | Alternator and method of manufacture |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/794,908 Division US6849974B2 (en) | 2001-03-16 | 2004-03-05 | Alternator and method of manufacture |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050121988A1 true US20050121988A1 (en) | 2005-06-09 |
Family
ID=23057832
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/098,782 Expired - Fee Related US6774518B2 (en) | 2001-03-16 | 2002-03-14 | Alternator and method of manufacture |
US10/794,908 Expired - Fee Related US6849974B2 (en) | 2001-03-16 | 2004-03-05 | Alternator and method of manufacture |
US10/973,205 Abandoned US20050121988A1 (en) | 2001-03-16 | 2004-10-26 | Alternator and method of manufacture |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/098,782 Expired - Fee Related US6774518B2 (en) | 2001-03-16 | 2002-03-14 | Alternator and method of manufacture |
US10/794,908 Expired - Fee Related US6849974B2 (en) | 2001-03-16 | 2004-03-05 | Alternator and method of manufacture |
Country Status (8)
Country | Link |
---|---|
US (3) | US6774518B2 (en) |
EP (1) | EP1382106A4 (en) |
JP (2) | JP4108482B2 (en) |
CN (2) | CN100527565C (en) |
BR (1) | BR0208487A (en) |
CA (3) | CA2441622C (en) |
MX (1) | MXPA03008382A (en) |
WO (1) | WO2002075896A2 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060186747A1 (en) * | 2002-10-25 | 2006-08-24 | Valeo Equipments Electiques Moteur | Protective cover which is intended to be mounted on the rear bearing of a rotating electrical machine, alternator and alternator-starter comprising one such cover |
US20080129134A1 (en) * | 2006-12-05 | 2008-06-05 | Honeywell International Inc. | High speed aerospace generator resilient mount |
US20110050050A1 (en) * | 2009-08-28 | 2011-03-03 | Lg Innotek Co., Ltd. | Bearing structure and spindle motor having the same |
CN103427532A (en) * | 2013-07-02 | 2013-12-04 | 北京睿德昂林新能源技术有限公司 | Motor and control device thereof |
DE102013110466A1 (en) * | 2013-09-23 | 2015-03-26 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Electric machine for use in the automotive sector |
DE102016217151A1 (en) * | 2016-09-08 | 2018-03-08 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Electromotive drive for a motor vehicle |
WO2021127152A1 (en) * | 2019-12-18 | 2021-06-24 | TSI Products, Inc. | Drive mechanism and accessory system |
US11349370B2 (en) | 2017-04-28 | 2022-05-31 | Valeo Equipements Electriques Moteur | Rotary electric machine with shrink-fitted bearing |
DE102010033205B4 (en) | 2009-08-05 | 2024-02-29 | Johnson Electric International AG | engine |
US11981201B2 (en) | 2022-06-17 | 2024-05-14 | TSI Products, Inc. | Accessory rotary drive system and method |
Families Citing this family (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7726440B2 (en) | 2001-02-15 | 2010-06-01 | Integral Technologies, Inc. | Low cost vehicle electrical and electronic components and systems manufactured from conductive loaded resin-based materials |
CN100527565C (en) * | 2001-03-16 | 2009-08-12 | 阿尔泰克发电系统有限责任公司 | ALternator and method of manufacture |
DE10239121A1 (en) * | 2002-08-27 | 2004-03-11 | Pierburg Gmbh | pole ring |
US7135795B2 (en) * | 2003-12-02 | 2006-11-14 | Franklin Electric Co., Inc. | Insert molded end bell for a submersible motor and method of manufacture thereof |
JP2005204385A (en) * | 2004-01-14 | 2005-07-28 | Denso Corp | Ac generator for vehicle |
WO2006028981A2 (en) * | 2004-09-01 | 2006-03-16 | Remy International, Inc. | Electronic package for electrical machine |
US20060071567A1 (en) * | 2004-10-01 | 2006-04-06 | Siemens Vdo Automotive Corporation | Plastic molded motor housing |
US20060137587A1 (en) * | 2004-11-08 | 2006-06-29 | Integral Technologies, Inc. | Low cost components for use in motorcycle, marine, and racing applications manufactured from conductive loaded resin-based materials |
US7345391B2 (en) * | 2005-02-11 | 2008-03-18 | Remy International, Inc. | Method and apparatus for attachment of a cover for a dynamoelectric machine |
DE102005046284A1 (en) * | 2005-02-28 | 2006-08-31 | Temic Automotive Electric Motors Gmbh | Electric motor for use as small power motor in motor vehicle, has stator with stator-laminated core on whose front side stator plates are provided, where each plate has reinforcing bracket for reinforcing bearing seat |
US7358634B2 (en) * | 2005-05-31 | 2008-04-15 | Regal-Beloit Corporation | Enclosure for an electric motor that incorporates a mid shield |
US20070080593A1 (en) * | 2005-10-07 | 2007-04-12 | O'donnell Steven B | Bearing sleeve |
EP1816727A3 (en) * | 2006-02-03 | 2011-04-06 | ebm-papst St. Georgen GmbH & Co. KG | Electric motor |
FR2898739B1 (en) * | 2006-03-15 | 2008-06-13 | Skf Ab | SHAFT SUPPORT SYSTEM FOR ELECTRIC MOTOR, ELECTRIC MOTOR AND METHOD OF MANUFACTURE. |
ITPN20060010U1 (en) * | 2006-03-24 | 2007-09-25 | Appliances Components Companies Spa | PERFECT ELECTRIC MOTOR |
DE102008002102A1 (en) * | 2008-05-30 | 2009-12-03 | Robert Bosch Gmbh | Isolated retaining flange for an electrical machine |
KR101558563B1 (en) * | 2008-07-28 | 2015-10-08 | 엘지이노텍 주식회사 | Step Actuator |
JP2011182642A (en) * | 2008-09-26 | 2011-09-15 | Sanyo Electric Co Ltd | Electric motor and electric vehicle |
JP5227814B2 (en) * | 2009-01-19 | 2013-07-03 | 株式会社日立産機システム | Electric motor |
JP5511232B2 (en) * | 2009-06-18 | 2014-06-04 | 三菱重工業株式会社 | Inverter module and inverter-integrated electric compressor using the same |
KR101297184B1 (en) | 2009-09-01 | 2013-08-16 | 에이비비 오와이 | End shield for an electrical machine |
MX2012012249A (en) | 2010-04-22 | 2012-11-23 | Continental Automotive Systems | Idle air control valve with plastic housing and retention features. |
DE202010007342U1 (en) * | 2010-05-28 | 2011-10-20 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | electric motor |
DE102010043430A1 (en) * | 2010-11-04 | 2012-05-10 | Robert Bosch Gmbh | Shield for electric machine e.g. electromotor installed in vehicle, has one structural component formed from electrically conductive thermoplastic resin, and another structural component formed from thermoset plastic |
KR101388705B1 (en) * | 2011-06-30 | 2014-04-25 | 삼성전기주식회사 | Linear Vibration Motor |
CN103006104A (en) * | 2011-09-26 | 2013-04-03 | 德昌电机(深圳)有限公司 | Food treating machine, motor assembly and bread machine |
US8745847B2 (en) | 2011-11-17 | 2014-06-10 | Remy Technologies, L.L.C. | Method of P-forming a continuous conductor having a rectangular cross section and a stator including a stator winding formed from a P-formed conductor having a rectangular cross-section |
US8789259B2 (en) | 2011-11-17 | 2014-07-29 | Remy Technologies, L.L.C. | Method of winding a stator core with a continuous conductor having a rectangular cross-section and a stator core |
US9467010B2 (en) | 2011-11-17 | 2016-10-11 | Remy Technologies, L.L.C. | Method of winding a stator core with a continuous conductor having a rectangular cross-section and a stator core |
DE102012205690A1 (en) * | 2012-04-05 | 2013-10-10 | Robert Bosch Gmbh | Device for mounting a rolling bearing of an electric machine, electric machine |
US9306432B2 (en) * | 2012-10-31 | 2016-04-05 | Hamilton Sundstrand Corporation | Stator cooling channel tolerant to localized blockage |
JP6001434B2 (en) * | 2012-12-11 | 2016-10-05 | 富士重工業株式会社 | Axial gap type power generator |
FR3002092A1 (en) * | 2013-02-11 | 2014-08-15 | Skf Ab | ELECTRIC MOTOR COMPONENT AND ELECTRIC MOTOR COMPRISING SUCH A COMPONENT |
US9249835B2 (en) * | 2013-07-26 | 2016-02-02 | Schaeffler Technologies AG & Co. KG | Extruded bearing housing |
DE102014212577A1 (en) * | 2014-06-30 | 2015-12-31 | Zf Friedrichshafen Ag | Electric machine |
JP6002718B2 (en) * | 2014-06-30 | 2016-10-05 | シナノケンシ株式会社 | Bearing device and motor |
JP6398843B2 (en) * | 2014-09-17 | 2018-10-03 | 日本電産株式会社 | motor |
DE102014223804A1 (en) * | 2014-11-21 | 2016-05-25 | Robert Bosch Gmbh | Electric machine with mounting flange |
CN104600893B (en) * | 2014-12-29 | 2018-03-06 | 卧龙电气集团股份有限公司 | A kind of plastic packaging motor with installation foot ground structure |
GB2534895B (en) * | 2015-02-04 | 2017-06-07 | Protean Electric Ltd | A bearing arrangement for an electric motor or generator |
TWI535152B (en) * | 2015-02-09 | 2016-05-21 | 建準電機工業股份有限公司 | Motor |
TWI568145B (en) * | 2015-05-06 | 2017-01-21 | 建準電機工業股份有限公司 | Internal rotor motor |
US9856918B2 (en) * | 2015-05-29 | 2018-01-02 | Schaeffler Technologies AG & Co. KG | Bearing and housing support for intermediate drive shaft |
US10024364B2 (en) * | 2016-01-12 | 2018-07-17 | Schaeffler Technologies AG & Co. KG | Integrated plastic shield bearing assembly |
FR3065844B1 (en) * | 2017-04-28 | 2020-11-20 | Valeo Equip Electr Moteur | ROTATING ELECTRIC MACHINE WITH OPTIMIZED COOLING |
US11293491B2 (en) * | 2018-03-16 | 2022-04-05 | Hamilton Sundstrand Corporation | Bearing housing for ram air fan |
CN109951004B (en) * | 2019-04-01 | 2020-12-08 | 灵璧县浩翔信息科技有限公司 | New energy automobile is with generator housing that has automatic heat dissipation cooling |
CN110890822B (en) * | 2019-12-03 | 2021-09-21 | 浙江行星电机有限公司 | Mute motor copper leaching device |
DE102021205784A1 (en) * | 2021-06-08 | 2022-12-08 | Aktiebolaget Skf | bearing arrangement |
Citations (75)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US53841A (en) * | 1866-04-10 | Improvement in measuring-funnels | ||
US2368549A (en) * | 1944-01-13 | 1945-01-30 | Elizabeth B Dickson | Flanged bearing |
US2935357A (en) * | 1956-06-18 | 1960-05-03 | Walter S Sutowski | Wheel having nylon rim and method of making same |
US3150278A (en) * | 1959-05-19 | 1964-09-22 | Bendix Corp | Small alternator |
US3622822A (en) * | 1970-03-04 | 1971-11-23 | Philips Corp | Enclosure for electric motor |
US3758799A (en) * | 1972-01-06 | 1973-09-11 | Gen Electric | Dynamoelectric machine |
US3873861A (en) * | 1973-06-15 | 1975-03-25 | Richard Halm | Electric motor, especially a squirrel-cage motor |
US3874073A (en) * | 1972-01-06 | 1975-04-01 | Gen Electric | Method of manufacturing dynamoelectric machines |
US3900749A (en) * | 1974-04-02 | 1975-08-19 | Hmw Industries | Permanent magnet generator |
US3924908A (en) * | 1973-12-07 | 1975-12-09 | Unex Conveying Systems Inc | Roller with inserted ball bearings |
US4101082A (en) * | 1976-05-11 | 1978-07-18 | Bosch-Siemens Hausgerate Gmbh | Electric motor-driven coffee mill |
US4104927A (en) * | 1976-11-29 | 1978-08-08 | Jensen Jorn Benned | Engine starter |
US4275321A (en) * | 1978-08-23 | 1981-06-23 | Hitachi, Ltd. | Drip-proof type electrical rotating machine |
US4284915A (en) * | 1978-11-02 | 1981-08-18 | Robert Bosch Gmbh | Mobile alternator-rectifier combination construction, particularly for automotive vehicles |
US4284914A (en) * | 1978-11-08 | 1981-08-18 | Robert Bosch Gmbh | Protective cover cap for an automotive-type alternator-rectifier combination |
US4288711A (en) * | 1978-11-02 | 1981-09-08 | Robert Bosch Gmbh | Alternator-rectifier construction where sheet metal diode support plates support a bearing |
US4342929A (en) * | 1979-07-13 | 1982-08-03 | Black & Decker Inc. | Electric motor wherein low temperature polymeric housing supports heat dissipating portions through heat resisting polymeric bridging member |
US4360749A (en) * | 1979-08-18 | 1982-11-23 | Robert Bosch Gmbh | Automotive alternator construction |
US4369384A (en) * | 1978-07-05 | 1983-01-18 | Whitehead Motofides S.P.A. | Alternator for a marine engine |
US4423540A (en) * | 1980-12-15 | 1984-01-03 | Tadashi Hishida | Method of manufacturing a bearing housing |
US4459088A (en) * | 1982-09-29 | 1984-07-10 | General Motors Corporation | Exhaust driven vacuum pump assembly |
US4492855A (en) * | 1982-07-09 | 1985-01-08 | Peripheral Dynamics, Inc. | Badge reader with improved slide arrangement |
US4604538A (en) * | 1985-02-19 | 1986-08-05 | General Motors Corporation | Air cooling for diode-rectified alternating current generators |
US4606000A (en) * | 1985-03-27 | 1986-08-12 | General Motors Corporation | Bridge rectifier |
US4613129A (en) * | 1984-11-09 | 1986-09-23 | Schroeder Charles H | Exercise bicycle attachment |
US4631433A (en) * | 1985-05-06 | 1986-12-23 | General Electric Company | Plastic end shield with thermal barrier for dynamoelectric machines |
US4659950A (en) * | 1985-01-12 | 1987-04-21 | Mitsubishi Denki Kabushiki Kaisha | Charging generator for a vehicle |
US4689507A (en) * | 1986-03-27 | 1987-08-25 | Emerson Electric Co. | Ventilation structure for an electric motor |
US4705983A (en) * | 1984-03-23 | 1987-11-10 | Robert Bosch Gmbh | Easily serviceable alternator, particularly for vehicular use |
US4723894A (en) * | 1986-12-03 | 1988-02-09 | Transamerica Delaval, Inc. | Low-pressure air pump |
US4746270A (en) * | 1987-07-20 | 1988-05-24 | Deco-Grand, Inc. | Engine water pump assembly and method of making same |
US4755709A (en) * | 1985-07-17 | 1988-07-05 | U.S. Philips Corporation | Electric machine having magnetic bearing means |
US4758101A (en) * | 1987-05-13 | 1988-07-19 | Xerox Corporation | Bearing mounting |
US4853570A (en) * | 1987-01-23 | 1989-08-01 | Mitsubishi Denki Kabushiki Kaisha | Coaxial engine starter with hollow shaft clutch |
US4866324A (en) * | 1987-04-28 | 1989-09-12 | Canon Kabushiki Kaisha | Brushless motor |
US4879483A (en) * | 1988-06-03 | 1989-11-07 | Century Electric, Inc. | Molded multi-part generator fan |
US4897571A (en) * | 1987-08-31 | 1990-01-30 | Mitsubishi Denki Kabushiki Kaisha | Starting electric motor |
US4904891A (en) * | 1988-08-02 | 1990-02-27 | Emerson Electric Co. | Ventilated electric motor assembly |
US4918324A (en) * | 1988-01-13 | 1990-04-17 | Mitsubishi Denki Kabushiki Kaisha | Coaxial engine starter |
US4944611A (en) * | 1989-03-03 | 1990-07-31 | Fag Kugelfischer Georg Schafer (Kgaa) | Die cast anti-friction bearing housing |
US4952078A (en) * | 1989-03-03 | 1990-08-28 | Fag Kugelfischer Georg Schaffer (Kgaa) | Die cast anti-friction bearing housing |
US4959576A (en) * | 1987-11-25 | 1990-09-25 | Nippondenso Co., Ltd. | Automotive alternator |
US5049770A (en) * | 1990-03-26 | 1991-09-17 | General Motors Corporation | Electric motor-driven impeller-type air pump |
US5068556A (en) * | 1989-09-07 | 1991-11-26 | A. O. Smith Corporation | Bearing bracket for a dynamoelectric machine |
US5126608A (en) * | 1989-05-24 | 1992-06-30 | Fanuc Ltd | Motor housing with integrally molded electric connector |
US5148256A (en) * | 1981-02-23 | 1992-09-15 | Unisys Corporation | Digital computer having an interconnect mechanism stacked above a semiconductor substrate |
US5154576A (en) * | 1991-09-30 | 1992-10-13 | General Motors Corporation | Coolant pump drip collector with improved capacity |
US5199171A (en) * | 1990-05-31 | 1993-04-06 | Mitsuba Electric Manufacturing Co., Ltd. | Method of manufacturing a motor casing made of resin |
US5268607A (en) * | 1992-09-09 | 1993-12-07 | Webster Plastics | Molded resin motor housing |
US5313698A (en) * | 1990-06-06 | 1994-05-24 | Robert Bosch Gmbh | Process for the manufacture of the stator of an electrical machine |
US5315195A (en) * | 1993-04-22 | 1994-05-24 | General Motors Corporation | Self-attaching cover for a dynamoelectric machine |
US5500994A (en) * | 1993-12-30 | 1996-03-26 | Mabuchi Motor Co., Ltd. | Method of manufacturing a rotor |
US5561334A (en) * | 1993-07-26 | 1996-10-01 | Nippondenso Co., Ltd. | Rotary electric machine with increased cooling capacity |
US5625242A (en) * | 1994-09-20 | 1997-04-29 | Nippondenso Co., Ltd. | Starter with speed reduction mechanism |
US5640062A (en) * | 1994-03-10 | 1997-06-17 | Ford Motor Company | Alternator with internal rectifier bridge assembly |
US5698914A (en) * | 1994-09-20 | 1997-12-16 | Nippondenso Co., Ltd. | Starter with a discharge hole on a yoke |
US5710474A (en) * | 1995-06-26 | 1998-01-20 | Cleveland Machine Controls | Brushless DC motor |
US5742498A (en) * | 1995-06-02 | 1998-04-21 | Nippondenso Co., Ltd. | Motor vehicle alternator having sealed rectifiers for efficient high-temperature operation |
US5770907A (en) * | 1995-08-14 | 1998-06-23 | Itt Automotive Electrical Systems, Inc. | Windshield wiper motor for use in a vehicle and method for manufacturing |
US5773906A (en) * | 1995-09-27 | 1998-06-30 | Nippondenso Co., Ltd. | Brush and slip ring arrangement of an AC generator |
US5942827A (en) * | 1997-04-03 | 1999-08-24 | Interelectric Ag | Electric motor |
US5970940A (en) * | 1995-02-22 | 1999-10-26 | Pentham Limited | Mechanical starter motor |
US5982057A (en) * | 1998-06-01 | 1999-11-09 | Mitsubishi Denki Kabushiki Kaisha | Molded motor |
US6002185A (en) * | 1998-06-03 | 1999-12-14 | Mitsubishi Denki Kabushiki Kaisha | Molded motor |
US6034464A (en) * | 1998-07-09 | 2000-03-07 | Mitsubishi Denki Kabushiki Kaisha | Vehicle alternator |
US6153725A (en) * | 1996-07-25 | 2000-11-28 | International Business Machines Corporation | Control of polymerization kinetics and rate of polymer precipitation as a means of controlling the aggregation and morphology in conductive polymers and precursors thereof |
US6153070A (en) * | 1998-05-07 | 2000-11-28 | Honeywell Inc | Sensor packaging using heat staking technique |
US6241257B1 (en) * | 1997-11-22 | 2001-06-05 | Skf Gmbh | Fastening device for belt pulleys |
US6278208B1 (en) * | 1999-12-23 | 2001-08-21 | Visteon Global Tech. | Alternator assembly |
US6304012B1 (en) * | 1997-08-19 | 2001-10-16 | Unit Parts Company | Alternator |
US6485188B1 (en) * | 2000-04-21 | 2002-11-26 | The Timken Company | Wheel mounting with a bearing race embedded in a cast component |
US6489702B1 (en) * | 1999-05-06 | 2002-12-03 | Prestolite Electric | Alternator |
US6625868B2 (en) * | 1999-11-09 | 2003-09-30 | Siemens Canada Limited | Totally integrated engine cooling module for D.C. motors |
US6645415B2 (en) * | 1999-12-08 | 2003-11-11 | Tokyo Sunworker Co., Ltd. | Roller and method of producing the same |
US6774518B2 (en) * | 2001-03-16 | 2004-08-10 | Altech Generating Systems Llc | Alternator and method of manufacture |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US512608A (en) * | 1894-01-09 | Ice-creeper | ||
US268607A (en) * | 1882-12-05 | Bolt and nut lock | ||
JPS5415101A (en) * | 1977-07-06 | 1979-02-03 | Hitachi Ltd | Small-sized mold motor |
JPS63107433A (en) * | 1986-10-23 | 1988-05-12 | Fuji Electric Co Ltd | Stator housing for small-sized motor |
CN1036484A (en) * | 1988-05-20 | 1989-10-18 | 福建省仙游电机厂 | A kind of novel brushless generator |
JPH0787696A (en) * | 1993-09-17 | 1995-03-31 | Shibaura Eng Works Co Ltd | Mold electric motor |
JP3187224B2 (en) * | 1993-10-15 | 2001-07-11 | マブチモーター株式会社 | Small motor |
GB2283133B (en) * | 1993-10-20 | 1998-04-15 | Gen Electric | Dynamoelectric machine and method for manufacturing same |
US5733396A (en) * | 1994-07-06 | 1998-03-31 | G. Siempelkamp Gmbh & Co. | Preheating particles in manufacture of pressed board |
JPH0842558A (en) * | 1994-08-04 | 1996-02-13 | Tokai Rubber Ind Ltd | Rotary body unit |
DE4441017A1 (en) * | 1994-11-17 | 1996-05-23 | Dieffenbacher Gmbh Maschf | Process for continuous mfr. of sheets of wood esp. plywood or chipboard |
JPH08205497A (en) * | 1995-01-27 | 1996-08-09 | Hitachi Ltd | Ac generator for vehicle |
JPH099550A (en) * | 1995-06-14 | 1997-01-10 | Sanyo Electric Co Ltd | Molded electric apparatus |
SE506224C2 (en) * | 1996-03-07 | 1997-11-24 | Sunds Defibrator Ind Ab | Ways to pre-press fibrous material when making sheets |
DK176116B1 (en) * | 1997-03-18 | 2006-08-14 | Wesser & Dueholm | Process for manufacturing particleboard, fiberboard and the like |
US6098679A (en) * | 1998-03-17 | 2000-08-08 | Noranda Forest Inc. | Dimensionally stable oriented strand board (OSB) and method for making the same |
JP3949370B2 (en) * | 2000-11-08 | 2007-07-25 | 三菱電機株式会社 | AC generator for vehicles |
-
2002
- 2002-03-14 CN CNB028091574A patent/CN100527565C/en not_active Expired - Fee Related
- 2002-03-14 CA CA2441622A patent/CA2441622C/en not_active Expired - Fee Related
- 2002-03-14 US US10/098,782 patent/US6774518B2/en not_active Expired - Fee Related
- 2002-03-14 EP EP02713852A patent/EP1382106A4/en not_active Withdrawn
- 2002-03-14 MX MXPA03008382A patent/MXPA03008382A/en active IP Right Grant
- 2002-03-14 CN CNB2006101492422A patent/CN100557922C/en not_active Expired - Fee Related
- 2002-03-14 BR BR0208487-2A patent/BR0208487A/en not_active IP Right Cessation
- 2002-03-14 CA CA2685282A patent/CA2685282C/en not_active Expired - Fee Related
- 2002-03-14 JP JP2002574204A patent/JP4108482B2/en not_active Expired - Fee Related
- 2002-03-14 WO PCT/US2002/007665 patent/WO2002075896A2/en active Application Filing
- 2002-03-14 CA CA2702150A patent/CA2702150A1/en not_active Abandoned
-
2004
- 2004-03-05 US US10/794,908 patent/US6849974B2/en not_active Expired - Fee Related
- 2004-10-26 US US10/973,205 patent/US20050121988A1/en not_active Abandoned
-
2008
- 2008-01-09 JP JP2008002504A patent/JP4833229B2/en not_active Expired - Fee Related
Patent Citations (79)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US53841A (en) * | 1866-04-10 | Improvement in measuring-funnels | ||
US2368549A (en) * | 1944-01-13 | 1945-01-30 | Elizabeth B Dickson | Flanged bearing |
US2935357A (en) * | 1956-06-18 | 1960-05-03 | Walter S Sutowski | Wheel having nylon rim and method of making same |
US3150278A (en) * | 1959-05-19 | 1964-09-22 | Bendix Corp | Small alternator |
US3622822A (en) * | 1970-03-04 | 1971-11-23 | Philips Corp | Enclosure for electric motor |
US3758799A (en) * | 1972-01-06 | 1973-09-11 | Gen Electric | Dynamoelectric machine |
US3874073A (en) * | 1972-01-06 | 1975-04-01 | Gen Electric | Method of manufacturing dynamoelectric machines |
US3873861A (en) * | 1973-06-15 | 1975-03-25 | Richard Halm | Electric motor, especially a squirrel-cage motor |
US3924908A (en) * | 1973-12-07 | 1975-12-09 | Unex Conveying Systems Inc | Roller with inserted ball bearings |
US3900749A (en) * | 1974-04-02 | 1975-08-19 | Hmw Industries | Permanent magnet generator |
US4101082A (en) * | 1976-05-11 | 1978-07-18 | Bosch-Siemens Hausgerate Gmbh | Electric motor-driven coffee mill |
US4104927A (en) * | 1976-11-29 | 1978-08-08 | Jensen Jorn Benned | Engine starter |
US4369384A (en) * | 1978-07-05 | 1983-01-18 | Whitehead Motofides S.P.A. | Alternator for a marine engine |
US4275321A (en) * | 1978-08-23 | 1981-06-23 | Hitachi, Ltd. | Drip-proof type electrical rotating machine |
US4284915A (en) * | 1978-11-02 | 1981-08-18 | Robert Bosch Gmbh | Mobile alternator-rectifier combination construction, particularly for automotive vehicles |
US4288711A (en) * | 1978-11-02 | 1981-09-08 | Robert Bosch Gmbh | Alternator-rectifier construction where sheet metal diode support plates support a bearing |
US4284914A (en) * | 1978-11-08 | 1981-08-18 | Robert Bosch Gmbh | Protective cover cap for an automotive-type alternator-rectifier combination |
US4342929A (en) * | 1979-07-13 | 1982-08-03 | Black & Decker Inc. | Electric motor wherein low temperature polymeric housing supports heat dissipating portions through heat resisting polymeric bridging member |
US4360749A (en) * | 1979-08-18 | 1982-11-23 | Robert Bosch Gmbh | Automotive alternator construction |
US4423540A (en) * | 1980-12-15 | 1984-01-03 | Tadashi Hishida | Method of manufacturing a bearing housing |
US5148256A (en) * | 1981-02-23 | 1992-09-15 | Unisys Corporation | Digital computer having an interconnect mechanism stacked above a semiconductor substrate |
US5296722A (en) * | 1981-02-23 | 1994-03-22 | Unisys Corporation | Electrically alterable resistive component stacked above a semiconductor substrate |
US4492855A (en) * | 1982-07-09 | 1985-01-08 | Peripheral Dynamics, Inc. | Badge reader with improved slide arrangement |
US4459088A (en) * | 1982-09-29 | 1984-07-10 | General Motors Corporation | Exhaust driven vacuum pump assembly |
US4705983A (en) * | 1984-03-23 | 1987-11-10 | Robert Bosch Gmbh | Easily serviceable alternator, particularly for vehicular use |
US4613129A (en) * | 1984-11-09 | 1986-09-23 | Schroeder Charles H | Exercise bicycle attachment |
US4659950A (en) * | 1985-01-12 | 1987-04-21 | Mitsubishi Denki Kabushiki Kaisha | Charging generator for a vehicle |
US4604538A (en) * | 1985-02-19 | 1986-08-05 | General Motors Corporation | Air cooling for diode-rectified alternating current generators |
US4606000A (en) * | 1985-03-27 | 1986-08-12 | General Motors Corporation | Bridge rectifier |
US4631433A (en) * | 1985-05-06 | 1986-12-23 | General Electric Company | Plastic end shield with thermal barrier for dynamoelectric machines |
US4755709A (en) * | 1985-07-17 | 1988-07-05 | U.S. Philips Corporation | Electric machine having magnetic bearing means |
US4689507A (en) * | 1986-03-27 | 1987-08-25 | Emerson Electric Co. | Ventilation structure for an electric motor |
US4723894A (en) * | 1986-12-03 | 1988-02-09 | Transamerica Delaval, Inc. | Low-pressure air pump |
US4853570A (en) * | 1987-01-23 | 1989-08-01 | Mitsubishi Denki Kabushiki Kaisha | Coaxial engine starter with hollow shaft clutch |
US4866324A (en) * | 1987-04-28 | 1989-09-12 | Canon Kabushiki Kaisha | Brushless motor |
US4758101A (en) * | 1987-05-13 | 1988-07-19 | Xerox Corporation | Bearing mounting |
US4746270A (en) * | 1987-07-20 | 1988-05-24 | Deco-Grand, Inc. | Engine water pump assembly and method of making same |
US4897571A (en) * | 1987-08-31 | 1990-01-30 | Mitsubishi Denki Kabushiki Kaisha | Starting electric motor |
US4959576A (en) * | 1987-11-25 | 1990-09-25 | Nippondenso Co., Ltd. | Automotive alternator |
US4918324A (en) * | 1988-01-13 | 1990-04-17 | Mitsubishi Denki Kabushiki Kaisha | Coaxial engine starter |
US4879483A (en) * | 1988-06-03 | 1989-11-07 | Century Electric, Inc. | Molded multi-part generator fan |
US4904891A (en) * | 1988-08-02 | 1990-02-27 | Emerson Electric Co. | Ventilated electric motor assembly |
US4944611A (en) * | 1989-03-03 | 1990-07-31 | Fag Kugelfischer Georg Schafer (Kgaa) | Die cast anti-friction bearing housing |
US4952078A (en) * | 1989-03-03 | 1990-08-28 | Fag Kugelfischer Georg Schaffer (Kgaa) | Die cast anti-friction bearing housing |
US5126608A (en) * | 1989-05-24 | 1992-06-30 | Fanuc Ltd | Motor housing with integrally molded electric connector |
US5068556A (en) * | 1989-09-07 | 1991-11-26 | A. O. Smith Corporation | Bearing bracket for a dynamoelectric machine |
US5049770A (en) * | 1990-03-26 | 1991-09-17 | General Motors Corporation | Electric motor-driven impeller-type air pump |
US5199171A (en) * | 1990-05-31 | 1993-04-06 | Mitsuba Electric Manufacturing Co., Ltd. | Method of manufacturing a motor casing made of resin |
US5313698A (en) * | 1990-06-06 | 1994-05-24 | Robert Bosch Gmbh | Process for the manufacture of the stator of an electrical machine |
US5154576A (en) * | 1991-09-30 | 1992-10-13 | General Motors Corporation | Coolant pump drip collector with improved capacity |
US5268607A (en) * | 1992-09-09 | 1993-12-07 | Webster Plastics | Molded resin motor housing |
US5315195A (en) * | 1993-04-22 | 1994-05-24 | General Motors Corporation | Self-attaching cover for a dynamoelectric machine |
US5561334A (en) * | 1993-07-26 | 1996-10-01 | Nippondenso Co., Ltd. | Rotary electric machine with increased cooling capacity |
US5705865A (en) * | 1993-07-26 | 1998-01-06 | Nippondenso Co., Ltd. | Rotary electric machine with increased cooling capacity |
US5500994A (en) * | 1993-12-30 | 1996-03-26 | Mabuchi Motor Co., Ltd. | Method of manufacturing a rotor |
US5640062A (en) * | 1994-03-10 | 1997-06-17 | Ford Motor Company | Alternator with internal rectifier bridge assembly |
US5625242A (en) * | 1994-09-20 | 1997-04-29 | Nippondenso Co., Ltd. | Starter with speed reduction mechanism |
US5698914A (en) * | 1994-09-20 | 1997-12-16 | Nippondenso Co., Ltd. | Starter with a discharge hole on a yoke |
US5970940A (en) * | 1995-02-22 | 1999-10-26 | Pentham Limited | Mechanical starter motor |
US5742498A (en) * | 1995-06-02 | 1998-04-21 | Nippondenso Co., Ltd. | Motor vehicle alternator having sealed rectifiers for efficient high-temperature operation |
US5710474A (en) * | 1995-06-26 | 1998-01-20 | Cleveland Machine Controls | Brushless DC motor |
US5770907A (en) * | 1995-08-14 | 1998-06-23 | Itt Automotive Electrical Systems, Inc. | Windshield wiper motor for use in a vehicle and method for manufacturing |
US5773906A (en) * | 1995-09-27 | 1998-06-30 | Nippondenso Co., Ltd. | Brush and slip ring arrangement of an AC generator |
US6058594A (en) * | 1996-04-10 | 2000-05-09 | Interelectric Ag | Process for manufacturing an electric motor |
US6153725A (en) * | 1996-07-25 | 2000-11-28 | International Business Machines Corporation | Control of polymerization kinetics and rate of polymer precipitation as a means of controlling the aggregation and morphology in conductive polymers and precursors thereof |
US5942827A (en) * | 1997-04-03 | 1999-08-24 | Interelectric Ag | Electric motor |
US6304012B1 (en) * | 1997-08-19 | 2001-10-16 | Unit Parts Company | Alternator |
US6241257B1 (en) * | 1997-11-22 | 2001-06-05 | Skf Gmbh | Fastening device for belt pulleys |
US6153070A (en) * | 1998-05-07 | 2000-11-28 | Honeywell Inc | Sensor packaging using heat staking technique |
US5982057A (en) * | 1998-06-01 | 1999-11-09 | Mitsubishi Denki Kabushiki Kaisha | Molded motor |
US6002185A (en) * | 1998-06-03 | 1999-12-14 | Mitsubishi Denki Kabushiki Kaisha | Molded motor |
US6034464A (en) * | 1998-07-09 | 2000-03-07 | Mitsubishi Denki Kabushiki Kaisha | Vehicle alternator |
US6489702B1 (en) * | 1999-05-06 | 2002-12-03 | Prestolite Electric | Alternator |
US6625868B2 (en) * | 1999-11-09 | 2003-09-30 | Siemens Canada Limited | Totally integrated engine cooling module for D.C. motors |
US6645415B2 (en) * | 1999-12-08 | 2003-11-11 | Tokyo Sunworker Co., Ltd. | Roller and method of producing the same |
US6278208B1 (en) * | 1999-12-23 | 2001-08-21 | Visteon Global Tech. | Alternator assembly |
US6485188B1 (en) * | 2000-04-21 | 2002-11-26 | The Timken Company | Wheel mounting with a bearing race embedded in a cast component |
US6774518B2 (en) * | 2001-03-16 | 2004-08-10 | Altech Generating Systems Llc | Alternator and method of manufacture |
US6849974B2 (en) * | 2001-03-16 | 2005-02-01 | Altech Generating Systems, Llc | Alternator and method of manufacture |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7554232B2 (en) * | 2002-10-25 | 2009-06-30 | Valeo Equipments Electriques Moteur | Protective cover which is intended to be mounted on the rear bearing of a rotating electrical machine, alternator and alternator-starter comprising one such cover |
US20060186747A1 (en) * | 2002-10-25 | 2006-08-24 | Valeo Equipments Electiques Moteur | Protective cover which is intended to be mounted on the rear bearing of a rotating electrical machine, alternator and alternator-starter comprising one such cover |
US20080129134A1 (en) * | 2006-12-05 | 2008-06-05 | Honeywell International Inc. | High speed aerospace generator resilient mount |
US7589447B2 (en) * | 2006-12-05 | 2009-09-15 | Honeywell International Inc. | High speed aerospace generator resilient mount |
DE102010033205B4 (en) | 2009-08-05 | 2024-02-29 | Johnson Electric International AG | engine |
US20110050050A1 (en) * | 2009-08-28 | 2011-03-03 | Lg Innotek Co., Ltd. | Bearing structure and spindle motor having the same |
US8587171B2 (en) * | 2009-08-28 | 2013-11-19 | Lg Innotek Co., Ltd. | Bearing structure and spindle motor having the same |
CN103427532A (en) * | 2013-07-02 | 2013-12-04 | 北京睿德昂林新能源技术有限公司 | Motor and control device thereof |
US9461525B2 (en) | 2013-09-23 | 2016-10-04 | Dr. Ing. H.C.F. Porsche Aktiengesellschaft | Electrical machine for use in the automotive sector |
DE102013110466A1 (en) * | 2013-09-23 | 2015-03-26 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Electric machine for use in the automotive sector |
DE102016217151A1 (en) * | 2016-09-08 | 2018-03-08 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Electromotive drive for a motor vehicle |
US11349370B2 (en) | 2017-04-28 | 2022-05-31 | Valeo Equipements Electriques Moteur | Rotary electric machine with shrink-fitted bearing |
WO2021127152A1 (en) * | 2019-12-18 | 2021-06-24 | TSI Products, Inc. | Drive mechanism and accessory system |
US11162415B2 (en) | 2019-12-18 | 2021-11-02 | TSI Products, Inc. | Drive mechanism and accessory system |
US11981201B2 (en) | 2022-06-17 | 2024-05-14 | TSI Products, Inc. | Accessory rotary drive system and method |
Also Published As
Publication number | Publication date |
---|---|
CN100527565C (en) | 2009-08-12 |
CN1983767A (en) | 2007-06-20 |
CN1541438A (en) | 2004-10-27 |
JP4108482B2 (en) | 2008-06-25 |
MXPA03008382A (en) | 2004-11-12 |
WO2002075896A2 (en) | 2002-09-26 |
US20020130570A1 (en) | 2002-09-19 |
JP4833229B2 (en) | 2011-12-07 |
JP2008125352A (en) | 2008-05-29 |
CA2441622A1 (en) | 2002-09-26 |
US20040169429A1 (en) | 2004-09-02 |
CA2702150A1 (en) | 2002-09-26 |
US6849974B2 (en) | 2005-02-01 |
EP1382106A2 (en) | 2004-01-21 |
CA2685282A1 (en) | 2002-09-26 |
JP2004533196A (en) | 2004-10-28 |
EP1382106A4 (en) | 2005-03-09 |
CA2441622C (en) | 2010-06-08 |
CA2685282C (en) | 2011-02-15 |
US6774518B2 (en) | 2004-08-10 |
WO2002075896A3 (en) | 2002-11-14 |
BR0208487A (en) | 2004-03-30 |
CN100557922C (en) | 2009-11-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6849974B2 (en) | Alternator and method of manufacture | |
CA1304769C (en) | End frame and stator assembly for a dynamoelectric machine | |
US6030128A (en) | Insulating arrangement for electrical machine shaft bearing | |
US5329199A (en) | Rotor assembly with molded fans and method for making the same | |
JP4912752B2 (en) | motor | |
EP3073613B1 (en) | Stator assembly and magnetic bearing or electric motor comprising such a stator assembly | |
US4963776A (en) | Vehicular a.c. generator having improved cooling structure | |
CN107850123B (en) | Holding jig for moulding plastics | |
US5327037A (en) | Automotive alternator slip ring assembly | |
CN111355348B (en) | Manufacture of polymer electric machines | |
US6517251B1 (en) | Overmolded motor bearing and method of making same | |
US20200036256A1 (en) | Housing having half-shell design for electric machines, and method for manufacturing said housing | |
US20220060078A1 (en) | Motor and drive device | |
US20210143704A1 (en) | Electric motor and method for producing same | |
EP1199786A1 (en) | Method for manufacturing a double-walled, metallic housing for an electric rotating machine | |
JP3000344B2 (en) | Water pump and manufacturing method thereof | |
JP3919050B2 (en) | Commutator, fuel pump using the commutator, and commutator manufacturing method | |
CN112636514B (en) | Method for producing a motor vehicle drive | |
KR20210087174A (en) | Fan Motor | |
CN112290715A (en) | Electric machine and method for assembling same | |
JPH0352534A (en) | Alternating current generator |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ALTECH GENERATING SYSTEMS LLC, MICHIGAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HOWE, STEVEN E.;LIPSCOMB, JR., DONALD C.;REEL/FRAME:015936/0302 Effective date: 20030912 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |