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1. 发明专利

JPH07275663A RECYCLE APPARATUS FOR ANTIFREEZING SOLUTION 失效
公开(公告)号：JPH07275663A
公开(公告)日：1995-10-24
申请号：JP6936494
申请日：1994-04-07
申请人： HITACHI LTD , HITACHI CAR ELECTRONICS
发明人： ITO TOSHIKATSU , NINOMIYA TAKAYUKI , URUNO KUNIHISA , ISHIZAKI KAZUHISA
IPC分类号： B01D61/02 , B01D61/12
摘要： PURPOSE:To provide a recycle apparatus for an antifreezing soln. informing the life of a treatment material or stopping regeneration treatment work when the life of the treatment material is exhausted, and execellent in repairing properties, handling properties, economical efficiency and maintenance and having reliability. CONSTITUTION:The used antifreezing soln. 25 received in a treatment soln. tank 9 is treated with a treatment device 1 and the regenerated soln. is stored in a regenerated soln. tank 10. During this regeneration treatment work, the life of filters 3a, 3b is judged from the pressure of the front flow of the filters detected by a pressure detector 12a and the life of a reverse osmosis membrane 5 is judged from the flow rate of the transmitted soln. flowing through a pipe 8f and the life of an ion exchange resin 6 is judged from the electric conductivity of the rear flow of the ion exchange resin measured by an electric conductivity meter 14. When the lives of those elements are judged, this state is informed to a user and the operation of the apparatus is stopped according to circumstances. The flow rate of the transmitted soln. can be detected by weighing the residual amt. of the treatment soln. tank 9 or regenerated soln. tank 10 by a liquid amt. detector 11.

2. 发明专利

JPH07274455A MOTOR CARRIER 失效
公开(公告)号：JPH07274455A
公开(公告)日：1995-10-20
申请号：JP5849594
申请日：1994-03-29
申请人： HITACHI LTD , HITACHI CAR ELECTRONICS
发明人： TOMITE TOSHIO , SAITO SHIGEKI
IPC分类号： H02K7/00 , H02K15/14
摘要： PURPOSE:To control vertical movement by vibration and prevent failure due to the twisting of a bearing in the brush side based on vibration during transfer by inserting an elastic holding body into a clearance in the circumferential direction where a housing in the stator side is provided opposed to the output side of rotor. CONSTITUTION:A motor 1 has a housing 2 and it is mounted and fixed to a body 3 with a bolt. The other end is provided with a stator 4 and a bracket 5 fixed with bolts 6. A field coil 8 and a magnetic pole 9 are mounted to the internal circumference of the stator 4, while the bracket 5 is provided with a bearing 11 of an armature 10. Moreover, a shaft 101 of the armature 10 is spline-processed at the end part for engagement with a shaft 31 supported by a bearing in the side of the body 3. An holding device 12 consisting of an elastic material is inserted into the clearance between the housing 2 and the shaft 101 at the time of transfer and actual transfer is carried out under the temporary fixing condition. Thereby, although the area between the housing 2 and external circumference of the shaft 101 is not held by a bearing during transfer of the motor, a motor is protected from damage even if the motor is moved in vertical due to the vibration.

3. 发明专利

JPH04350331A ELECTROMAGNET 失效
公开(公告)号：JPH04350331A
公开(公告)日：1992-12-04
申请号：JP12343991
申请日：1991-05-28
申请人： HITACHI LTD , HITACHI CAR ELECTRONICS
发明人： SOYAMA MANABU , OTSUKI KATSUMI
IPC分类号： F02D1/02 , F16K31/06 , H01F7/16
摘要： PURPOSE:To obtain high attractive force by means of an optimal configuration enabling effective application of magnetic force in axial move of a plunger. CONSTITUTION:In an electromagnet with an attracting coil 12 and a holding coil 13 in mutual split winding, the attracting coil 12 is disposed on the side of a fixed magnetic pole and the holding coil 13 is disposed on the side of a movable magnetic pole. The end face on the side of being attracted to the fixed pole of a plunger 8 is disposed in the range of the attracting coil 12. Accordingly the configuration becomes such optimal that the magnetic force applies effectively in axial move of the plunger 8, so that the high attractive force is attained.

4. 发明专利

JPH04119270A DUTY CONTROL SOLENOID VALVE 失效
公开(公告)号：JPH04119270A
公开(公告)日：1992-04-20
申请号：JP23554090
申请日：1990-09-07
申请人： HITACHI LTD , HITACHI CAR ELECTRONICS
发明人： SOYAMA MANABU , OTSUKI KATSUMI
IPC分类号： F16K31/06
摘要： PURPOSE:To obtain strong attraction and almost linear stable characteristic by chamfering a steel ball attracting surface so that the point of intersection with a taper from the taper extension line to have a diameter less than the steel ball diameter. CONSTITUTION:A coil 15 is electrified and stopped with a certain cycle by a signal from a driving part. At electrifying, a steel ball 5 is attracted from a fixed valve part 4 side to a fixed magnetic pole 7 side. At this time, the taper part 9 provided on the fixed magnetic pole 7 is formed into wrapping in shape against the steel ball 5, and hence a large contact area and strong attraction is obtained. Further, because of the wrapping form, the air gap G between the outer circumference of the steel ball 5 and the fixed magnetic pole 7 is nearly constant, and strong and stable attraction is obtained. Further by providing a chamfered part 10, leakage of magnetic flux to a yoke 3 is prevented and effective attraction is insured. Hereby even at operation of high hydraulic pressure, oil pressure is linearly controlled and stable characteristic can be obtained.

5. 发明专利

JPH0460356A REFRIGERANT RECOVERY DEVICE 失效
公开(公告)号：JPH0460356A
公开(公告)日：1992-02-26
申请号：JP16666590
申请日：1990-06-27
申请人： HITACHI LTD , HITACHI CAR ELECTRONICS
发明人： UEDA TOSHIAKI , KOMURO SHIGERU
IPC分类号： F25B45/00
摘要： PURPOSE:To reduce oil spill to recovery device caused by the foaming of accumulated oil in compressor, by delaying the action of switch valve of refrigerant recovery passage connecting the recovery device and refrigerating cycle. CONSTITUTION:Refrigerant recovery device 12 which is used to recover refrigerant from refrigerating cycle 11, is connected with high pressure charging valve 9 and low pressure charging valve 10 through pipings 13 and 14. In pipings 13 and 14 valves 15 and 16 are equipped respectively. When recovery compressor 19 works, electromagnetic valve 15 is opened and after Tmin passed, electromagnetic valve 16 opens. At the moment of delayed Tmin, because the electromagnetic valve 16 is closed, oil in compressor 1 can not spill out through piping 14. Even if foaming of oil in the low pressure side of compressor 1 happens because of decompression, the oil flows out only to evaporator 5 through piping 7 and can not flow out to the recovery device 12.

6. 发明专利

JPH03205806A SOLENOID 失效
公开(公告)号：JPH03205806A
公开(公告)日：1991-09-09
申请号：JP58790
申请日：1990-01-08
申请人： HITACHI LTD , HITACHI CAR ELECTRONICS
发明人： SOYAMA MANABU , OTSUKI KATSUMI
IPC分类号： H01F7/16
摘要： PURPOSE:To facilitate the work efficiency so as to obtain always stable insulation property by separating a coil winding bobbin part and a coil lead projection part, and making the projection hollow. CONSTITUTION:In a solenoid where coils 6 and 7 are wound on a bobbin 5 made of insulating material, and projections 9 are provided at the lead parts of the coils 6 and 7, and conductor plates 2 are mounted on the projections 9, the bobbin part 5 and the projection part 9 are separated, and besides the projection part 9 is made hollow. For example, in the assembling work, the retaining coil and the attracting coil 7 wound on the bobbin 5 are erected in the direction of lead connection, and for the coil rise part, the insulation is maintained by the cylindrical projection 9 of a cap bobbin 8 made of resin. Moreover, the cylindrical projection 9 corresponds to the contact recess 15 installed in the contact case 10 made of resin, and further a similar bobbin recess 16 is provided in the bobbin 5 too, and it corresponds to the cap bobbin recess 17, whereby the breaking of a wire is prevented.

7. 发明专利

JPH02119384A SUPPORT MECHANISM FOR TELEVISION SET 失效
公开(公告)号：JPH02119384A
公开(公告)日：1990-05-07
申请号：JP27067388
申请日：1988-10-28
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG , HITACHI CAR ELECTRONICS
发明人： ITO CHITSU , SEKI SHIGEO , YOKOYA HIROSHI , TAKAO MASAKI
IPC分类号： F16B1/02 , H04N5/64 , H05K5/02
摘要： PURPOSE:To set the direction of the screen easily in an optional direction with simple structure by coupling a stationary base and a television support with a ball joint. CONSTITUTION:A screw 9b of a ball joint 9 is fixed to a screw hole 11a of a support plate 11. The ball joint 9 is fixed to the joint 7a of a base 7 by screwing a ball joint fix screw 10 to the joint 7a of the base 7. A base fix screw 8 is loosened to widen the inner diameter of a stay throughhole 7b of the base 7 and the base 7 moves the perpendicular part 4b of the stay 4 vertically. Simultaneously, the base 7 is turned around the perpendicular part 4b of the stay 4. The ball joint fixed screw 10 is loosened to allow a television set 13 to be directed in any direction around the center of the ball of the ball joint 9.

8. 发明专利

JPH01199078A DUTY CONTROL ELECTRIC MAGNET 失效
公开(公告)号：JPH01199078A
公开(公告)日：1989-08-10
申请号：JP1964588
申请日：1988-02-01
申请人： HITACHI LTD , HITACHI CAR ELECTRONICS
发明人： SOYAMA MANABU , OTSUKI KATSUMI
IPC分类号： F16K31/06
摘要： PURPOSE:To provide stabilized characteristics by furnishing a groove both in a fixed magnetic pole and a non-magnetic member, and allowing the non- magnetic member to move as in a single piece with a moving magnetic pole at all times when it is in operation. CONSTITUTION:When current supply to a coil 13 and a break thereof are repeated at certain intervals according to signals from a drive part, a moving magnetic pole 5 is attracted to a fixed magnetic pole 9 during the current being supplied and separated therefrom during break by a return spring 11. The flow of oil in this process is as shown by the arrow 14, i.e., it passes through a notch 15 in a non-magnetic substance washer 10 and a gutter 16 in the fixed magnetic pole 9 to be drained. When transfer to the valve opening action is made, the oil having passed through the gutter 16 and notch 15 provided in the non-magnetic washer 10 and fixed magnetic pole 9 works as an interposition to separate the two, and valve closing is achieved in a short while.

9. 发明专利

JPH07213025A BRUSH DEVICE 失效
公开(公告)号：JPH07213025A
公开(公告)日：1995-08-11
申请号：JP617694
申请日：1994-01-25
申请人： HITACHI LTD , HITACHI CAR ELECTRONICS
发明人： KUNIYA KENJI , SAITO KAZUHIRO , YASUJIMA KO
IPC分类号： H01R39/58 , H02K13/00
摘要： PURPOSE:To improve the workability at the time of attachment and, further, eliminate the necessity of the alignment of a brush wear detection device. CONSTITUTION:A brush device is composed of brush holder attaching legs 1 and a brush wear detection device 3. With this constitution, the workability at the time of attachment is improved and, further, the adjustment to ailgn the brush wear detection device 3 with the center of the trench of the brush.

10. 发明专利

JPH07108268A TREATING APPARATUS FOR ANTIFREEZE FOR COOLING AUTOMOBILE ENGINE 失效
公开(公告)号：JPH07108268A
公开(公告)日：1995-04-25
申请号：JP25804293
申请日：1993-10-15
申请人： HITACHI LTD , HITACHI CAR ELECTRONICS
发明人： ITO TOSHIKATSU , URUNO KUNIHISA , ISHIZAKI KAZUHISA
IPC分类号： F01P11/06 , C02F1/42 , C09K5/00 , C09K5/08 , C10M175/00
摘要： PURPOSE:To enable the treatment of various kinds of antifreeze and to reduce the number of the components of an apparatus by adopting a column of an one tower mixed bed type in which a mixture of cation and anion exchange resins is packed. CONSTITUTION:An antifreeze treatment apparatus is composed of a pump motor 8, a check valve 9, a filter 10, an active carbon tank 11, and an ion exchange resin tank 12, all of which are place in a housing 13. The resin tank 12 is a column of an one tower mixed bed type in which a mixture of cation and anion exchange resins is packed. A hydrogen cation generated by the exchange reaction of the cation exchange resin reacts immediately with the hydroxyl anion generated by the reaction of the anion exchange resin to produce a water molecule, controlling the precipitate generation.

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