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1. 发明专利

FR2610770A1 未知
公开(公告)号：FR2610770A1
公开(公告)日：1988-08-12
申请号：FR8801244
申请日：1988-02-03
申请人： HITACHI LTD
发明人： KURIHASHI YASUTAKA , YAGINUMA KENJI , SUENOBU TADAYUKI , TAMURA HIROSHI
IPC分类号： H02K15/02 , H02K3/12 , H02K15/00 , H02K15/04 , H02K15/06 , H02K15/085 , H02K19/22
摘要： PURPOSE:To improve a space factor in a slot by press-molding the part of a winding to be filled in a stator slot so as to have a substantially rectangular section. CONSTITUTION:A stator core 2 has a back high core 6 of outer peripheral side and a toothlike core 7 extending toward a circumferential direction, a plurality of slots 3 are formed between the cores 7, and a substantially rectangular-section stator winding 4 is inserted into the slot 3. An insulating sheet 8 is provided between the core 2 and the winding 4. The winding 4 is formed in a rectangular section at a slot insertion unit, and in a circular section at the other part, i.e., the coil end.

2. 发明专利

DE3779462T2 未知
公开(公告)号：DE3779462T2
公开(公告)日：1993-01-28
申请号：DE3779462
申请日：1987-03-18
申请人： HITACHI LTD
发明人： KURIHASHI YASUTAKA , KAI KENZIRO
IPC分类号： H02K19/22 , H02K9/06 , H02K11/04
摘要： The alternator for use in automobiles includes two cooling fans (20, 21), rear and front, rotatable with the rotor shaft (1) disposed on opposed sides of the rotor (2), which cooling fans are received in front and rear brackets (5, 6) respectively. The brackets (5, 6) have inlet ports (9,16,17,18) and outlet ports (10, 19) through which drafts of cooling air are to be drawn in and out of the inner cavity of the alternator through rotation of the fans (20, 21), attaining cooling of necessary parts e.g. a stator winding (8), rotor exciting winding (3), rectifier diode (15) etc. It is uniquely designed that the one fan (21) on the front side has a suction capacity greater than that of the other fan (20) on the rear side, causing a negative pressure differential between the two suction sections of cooling fans. This results in an additional axial flow of cooling air directed from the rear to the front which contributes to improvement of cooling efficiency for the rectifier diode and rotor exciting winding. Thus the alternator can advantageously be made in compact size yet of a higher output.

3. 发明专利

DE3779462D1 未知
公开(公告)号：DE3779462D1
公开(公告)日：1992-07-09
申请号：DE3779462
申请日：1987-03-18
申请人： HITACHI LTD
发明人： KURIHASHI YASUTAKA , KAI KENZIRO
IPC分类号： H02K19/22 , H02K9/06 , H02K11/04
摘要： The alternator for use in automobiles includes two cooling fans (20, 21), rear and front, rotatable with the rotor shaft (1) disposed on opposed sides of the rotor (2), which cooling fans are received in front and rear brackets (5, 6) respectively. The brackets (5, 6) have inlet ports (9,16,17,18) and outlet ports (10, 19) through which drafts of cooling air are to be drawn in and out of the inner cavity of the alternator through rotation of the fans (20, 21), attaining cooling of necessary parts e.g. a stator winding (8), rotor exciting winding (3), rectifier diode (15) etc. It is uniquely designed that the one fan (21) on the front side has a suction capacity greater than that of the other fan (20) on the rear side, causing a negative pressure differential between the two suction sections of cooling fans. This results in an additional axial flow of cooling air directed from the rear to the front which contributes to improvement of cooling efficiency for the rectifier diode and rotor exciting winding. Thus the alternator can advantageously be made in compact size yet of a higher output.

4. 发明专利

GB2202170A Alternator stator with inserted windings 未知
公开(公告)号：GB2202170A
公开(公告)日：1988-09-21
申请号：GB8802404
申请日：1988-02-03
申请人： HITACHI LTD
发明人： KURIHASHI YASUTAKA , YAGINUMA KENJI , SUENOBU TADAYUKI
IPC分类号： H02K15/02 , H02K3/12 , H02K15/00 , H02K15/04 , H02K15/06 , H02K15/085
摘要： PURPOSE:To improve a space factor in a slot by press-molding the part of a winding to be filled in a stator slot so as to have a substantially rectangular section. CONSTITUTION:A stator core 2 has a back high core 6 of outer peripheral side and a toothlike core 7 extending toward a circumferential direction, a plurality of slots 3 are formed between the cores 7, and a substantially rectangular-section stator winding 4 is inserted into the slot 3. An insulating sheet 8 is provided between the core 2 and the winding 4. The winding 4 is formed in a rectangular section at a slot insertion unit, and in a circular section at the other part, i.e., the coil end.

5. 发明专利

DE3803752A1 未知
公开(公告)号：DE3803752A1
公开(公告)日：1988-08-25
申请号：DE3803752
申请日：1988-02-08
申请人： HITACHI LTD
发明人： KURIHASHI YASUTAKA , YAGINUMA KENJI , SUENOBU TADAYUKI , TAMURA HIROSHI
IPC分类号： H02K15/02 , H02K3/12 , H02K15/00 , H02K15/04 , H02K15/06
摘要： The stator includes a core 2 having a plurality of slots formed in its inner periphery; a stator winding 7 partially inserted in each of said slots of said stator core; and an electrically insulating material inserted between said stator winding and the surface of said stator core opposing said stator winding, wherein said slots formed in said stator core have a substantially rectangular cross-sectional form and the portions of said stator winding to be inserted into said slots also have a substantially rectangular cross-sectional form, with the other portions 7b having a circular cross-sectional form. The rectangular cross-section of the winding portions is achieved before insertion in the slots by a hydraulic presser plate 15. The winding conductor initially may be of hollow cross-section.

6. 发明专利

JPH04351452A ROTOR OF AC GENERATOR FOR VEHICLE 失效
公开(公告)号：JPH04351452A
公开(公告)日：1992-12-07
申请号：JP12343891
申请日：1991-05-28
申请人： HITACHI LTD
发明人： KURIHASHI YASUTAKA , OKAMOTO SHUICHI , CHIBA MICHIHARU
IPC分类号： H02K19/22
摘要： PURPOSE:To provide a rotor of an AC generator for cars at a low cost with excellence in a vibro-isolating effect of pawl-shaped magnetic poles in pole cores. CONSTITUTION:A rotor is constituted of a pair of pole cores 2, 3 having pawl- shaped magnetic poles, field coil 6 wound on a bobbin 5, vibro-isolating member 7 closely mounted between the inside of the pawl-shaped magnetic pole and the outside of the field coil 6 with a tightening margin through varnish, and made of resin of a high affinity with the varnish and of the varnish.

7. 发明专利

JPS62221839A AC GENERATOR FOR MOTOR CAR 失效
公开(公告)号：JPS62221839A
公开(公告)日：1987-09-29
申请号：JP6282186
申请日：1986-03-20
申请人： HITACHI LTD
发明人： KURIHASHI YASUTAKA , KAI KENJIRO
IPC分类号： H02K19/22 , H02K9/06 , H02K11/04
摘要： PURPOSE:To cool the parts of a stator winding, an exciting winding of a rotor, a rectifying diode, etc., by setting up the negative pressure at the suction portion of a fan on the bracket side to be larger than a fan on the bracket side having a diode. CONSTITUTION:With the rotation of a rotor 2 by rotating an engine, centrifugal fans 20 and 21 rotate. The external cooling wind is sucked from suction holes 16-18 on the side of a rear bracket 6 and from a suction hole 9 on the side of a front bracket 5 and passes through each bracket 5 and 6 and is discharged from discharge holes 10 and 19. The capacity of the centrifugal fan 21 on the side of the front bracket 5 is designed so larger than that of the centrifugal fan 20 on the side of the rear bracket 6 that the negative pressure at the suction portion of the centrifugal fan 21 on the side of the front bracket 5 becomes larger than that of the centrifugal fan 20 on the side of the rear bracket 6, causing axial flow from the side of the rear bracket 6 to the side of the front bracket 5.

8. 发明专利

JPS57196847A VACUUM PUMP BUILT-IN GENERATOR 失效
公开(公告)号：JPS57196847A
公开(公告)日：1982-12-02
申请号：JP8175181
申请日：1981-05-28
申请人： HITACHI LTD
发明人： YAMADA SHIGEKI , KURIHASHI YASUTAKA
IPC分类号： H02K7/14 , F01C21/10 , F04C23/00 , H02K7/00
摘要： PURPOSE:To improve the productivity of a generator by extending the rear bracket of the generator to form a casing, installing a cylindrical housing in the casing and containing the rotor of a vacuum pump, thereby reducing the weight of the pump section. CONSTITUTION:The rear bracket 6a of a generator is extended, and a casing 6b is formed. A cylindrical housing 15 is mounted inside the casing 5b, and a suction chamber 17 and an exhaust chamber 19 are formed between the casing 6b and the housing 15. A pump rotor 20 having vanes 22 is contained in the housing 15, and is mounted on a rotational shaft 1. A common cover 23 having a suction inlet 12 and an exhaust outlet 14 of the same direction is mounted on the hole of the end faces of the casing 6b and the housing 15, thereby forming a vacuum pump.

9. 发明专利

JPS5319571A TEMPERATURE SWITCH 失效
公开(公告)号：JPS5319571A
公开(公告)日：1978-02-22
申请号：JP9398676
申请日：1976-08-09
申请人： HITACHI LTD
发明人： KURIHASHI YASUTAKA , MASAKI HIDEAKI
IPC分类号： H01H37/54 , F01P11/16 , H01H37/52

10. 发明专利

JPS6460244A AC GENERATOR FOR VEHICLE 失效
公开(公告)号：JPS6460244A
公开(公告)日：1989-03-07
申请号：JP12575488
申请日：1988-05-25
申请人： HITACHI LTD
发明人： TORII TAKUJI , TAKADA YOSHIHIRO , NAKAMURA RYUICHI , MATSUSHIMA HITOSHI , KURIHASHI YASUTAKA
IPC分类号： H02K9/06 , H02K19/36
摘要： PURPOSE:To cope well with increasing current output without increasing profile of generator, by projecting many flat board fin elements from an arched or polygonal fin base. CONSTITUTION:A generator comprises a casing 1, a rotor 2, a stator 3, cooling fans 4, a rectifier diode 5, cooling fins 6 therefor and other electronic components. The cooling fans 4 are arranged at front and rear sides and coupled with a rotary shaft 7 thus rotating integrally with the rotary shaft 7. Base for the diode 5 and the cooling fins 6 is constructed with double rings and many fins are arranged on the outer circumferential face of the outer ring and on the inner circumferential face of the inner ring. Cooling air delivery ports 8 are made through the outer circumference of casings 1A, 1B and cooling air suction ports 9 are made through the sidewalls of the casings 1A, 1B.

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