公开(公告)号：JPH1047247A

公开(公告)日：1998-02-17

申请号：JP20159496

申请日：1996-07-31

Applicant: MATSUSHITA REFRIGERATION

Inventor： NOGUCHI KAZUHITO ,  MIYOSHI KYOZO ,  SAEKI YUJI ,  KUBOTA AKIHIKO ,  MOTEGI MANABU

IPC: F04B39/00

Abstract: PROBLEM TO BE SOLVED: To improve sure fitting and sealing performance at the time of a communicating pipe of a suction muffler in an insert hole of a cylinder head. SOLUTION: A communicating pipe 15 provided with a screw part is screwed in an insert hole 17a of a cylinder head 17 provided with a screw part, and placed on the upper flat surface 17b in such a manner as to clamp an elastic seal body 16 between the back 14 of a circular flange part 12 provided on the communicating pipe 15 and tone upper flat surface part 17b of the insert hole 17a, whereby the communicating pipe 15 and the insert hole 17a are fixed to each other more surely, and the sealing performance can be improved by the elastic seal body 16 sandwiched between the circular flange part 12 and the cylinder head.

公开(公告)号：JPH06117374A

公开(公告)日：1994-04-26

申请号：JP26453792

申请日：1992-10-02

Applicant: MATSUSHITA REFRIGERATION

Inventor： WADA SATOSHI ,  KAWAI HIDEKI ,  SAEKI YUJI ,  OZAKA MASAHIKO

IPC: F04B39/00 ,  F04B39/14

Abstract: PURPOSE:To prevent the deterioration of reliability and reduce dimension by carrying out assembly of a compressor in the state where a rolling bearing is assembled on a crankshaft, when the rolling bearing is used, in order to improve the assembly workability of a sealed type motor-driven compressor used for a refrigerator, etc. CONSTITUTION:A sealed type motor-driven compressor is constituted of a body 15a, piston 16 connected with one edge of the body 15a, cylinder 22, and a cut part 25 formed on the cylinder 22 into which the body 15a is insertion-fitted.

公开(公告)号：JPH05288154A

公开(公告)日：1993-11-02

申请号：JP8355792

申请日：1992-04-06

Applicant: MATSUSHITA REFRIGERATION

Inventor： WADA SATOSHI ,  SAEKI YUJI ,  KAWAI HIDEKI ,  OZAKA MASAHIKO

IPC: F04B39/00 ,  F04B39/02

Abstract: PURPOSE:To lower input in the case of using rolling bearings so as to improve efficiency regarding the high efficiency of a closed type motor-driven compressor used for a refrigerator or the like. CONSTITUTION:A closed type motor-driven compressor is formed of a crankshaft 20 fixed to the rotor 5 of a motor-driven element 2, an eccentric shaft 21 provided at the crankshaft 20, two ball bearings 22, 23 for rotatably supporting the crankshaft 20 and main shafts 20a, 20a provided on both axial sides of the eccentric shaft 21, and an approximately circular plate 26 provided at the crankshaft 20.

公开(公告)号：JPH03100394A

公开(公告)日：1991-04-25

申请号：JP23780289

申请日：1989-09-13

Applicant: MATSUSHITA REFRIGERATION

Inventor： OZAKA MASAHIKO ,  KAWAI HIDEKI ,  SAEKI YUJI ,  NISHIHARA HIDETOSHI ,  ARIMIZU KOJI

IPC: F04C18/356

Abstract: PURPOSE:To improve the efficiency of a compressor by providing a cooling path having the lower end extended vertically and both ends opened into an enclosed container near the compression chamber of a compression element, while providing a projection above the cooling path in the enclosed container so that an upper opening of the cooling path is positioned below the projection. CONSTITUTION:One end of a stay 18 is fixedly welded to an enclosed case 1 and the other end is disposed in a position adjacent to the upper opening of a cooling path 19. High temperature and pressure refrigerant gas fill a space 17 within an enclosed container and dissolving oil 21 and the oil 21 floating in the space 17 collide with the stay 18, so that these drop from the stay 18 and the oil drops flow in the cooling path 19. As a result, a compression chamber 9 is cooled from the proximity of a compression chamber 9 so that temperatures of exhaust gas and suction gas are reduced. Thus, the volume efficiency of the compressor is improved to provide the high efficiency compressor.

公开(公告)号：JPS63181646A

公开(公告)日：1988-07-26

申请号：JP1183987

申请日：1987-01-21

Applicant: MATSUSHITA REFRIGERATION

Inventor： SAEKI YUJI

IPC: F04B49/10 ,  F04B39/00 ,  H02K11/00

Abstract: PURPOSE:To easily and detachably hold a motor protector at the time of incorporating a compressor by directly engaging an insertion terminal secured to the protector composed of a metal case with the pin terminal of a sealed terminal. CONSTITUTION:In a compressor having the mounting structure of a motor protector 4, the protector 4 is attached to a sealed terminal 6 secured to a sealed vessel 3, and disposed between the leads 8 extended from the winding end 5 of a motor 2 and the terminal 6. A motor-driven compressor 1 is set in the vessel 3 at the time of incorporating the sealed compressor, and an insertion terminal 13 secured to the protector 4 is engaged with a connection terminal 13 provided at the pin terminal 10 of the terminal 6. The leads 8 from the motor 2 are connected through a pin insertion terminal 15 to the protector 4 and the terminal 10. Thus, the longitudinal axial direction of the protector 4 is attached substantially perpendicularly to the terminal 10 to facilitate the attachment and the detachment of the protector 4 and to reduce the containing space of the protector 4.

公开(公告)号：JPS63179184A

公开(公告)日：1988-07-23

申请号：JP1185087

申请日：1987-01-21

Applicant: MATSUSHITA REFRIGERATION

Inventor： SAEKI YUJI ,  MIYOSHI KYOZO

IPC: F04B49/10 ,  F04B39/00

Abstract: PURPOSE:To surely protect a motor from overheat in an electric apparatus in which both a thermally-operated PTC element used for driving a motor in a closed compressor and the overload protector of the motor are mounted integrally by mounting another thermally-operated PTC element which is electrified when the overload protector operates in this protector. CONSTITUTION:In a motor apparatus 4 which is tightened to the body of a closed type compressor via a bracket and shielded with a protector cover, both the overload protector 16 of a motor and a thermally-operated PTC element 23 used for driving the motor are mounted integrally in a body case 12. In this case, the secondary thermally-operated PTC element 24 sticks to the overload protector 16 with bond 25. Said thermally-operated elements 24 is connected to the overload protector 16 by performing the spot weldings 24a and 14c on said element to join one polar terminal thereof to a sub heater 17 and the other terminal to a terminal 3. The motor can then be protected from overheat surely by controlling said secondary element 24 to electrify and heat it when the overload protector 16 is operated.

公开(公告)号：JPS61212677A

公开(公告)日：1986-09-20

申请号：JP5395885

申请日：1985-03-18

Applicant: MATSUSHITA REFRIGERATION

Inventor： SAEKI YUJI

IPC: F04B39/02 ,  F04B39/12

Abstract: PURPOSE:To supply lubricating oil reliably into a cylinder by providing an oil reservoir in a valve plate and supplying the lubricating oil from the oil reservoir to a suction passage through a lubricating oil passage by suction vacuum pressure and dead weight so that suction resistance of the lubricating oil is reduced. CONSTITUTION:There is provided a cylinder 5 and a piston which reciprocates on the inside face of the cylinder 5 in the horizontal direction. An oil reservoir 5a is formed on an upper face of the outside circumference of the cylinder 5, the upper face being located at a position higher than the piston. In addition, an oil reservoir hole 7a is formed in a valve plate 7 and the oil reservoir hole 7a communicates with the oil reservoir 5a through a passage 5b. A slot 14 is formed which communicates from the oil reservoir hole 7a to a suction passage 7b thereby to supply lubricating oil through the slot 14 by dead weight and vacuum pressure in the suction passage 7b.

公开(公告)号：JPH07298579A

公开(公告)日：1995-11-10

申请号：JP8156694

申请日：1994-04-20

Applicant: MATSUSHITA REFRIGERATION

Inventor： MIYOSHI KYOZO ,  SAEKI YUJI ,  OZAKA MASAHIKO

IPC: H02K17/08 ,  H02K17/30

Abstract: PURPOSE:To provide a highly efficient single-phase induction motor at low cost. CONSTITUTION:In a single-phase induction motor 11 comprising a main coil 12 and an auxiliary coil 13, a circuit 15 for changing capacitance of the capacitor is connected to the auxiliary coil 13 in series. The capacitance of the capacitor of the circuit 15 of the operating capacitor is controlled with a capacitance control part 18. In the circuit 15 for the operating capacitor, at least two or more circuits wherein an operating capacitor 16 and switches 17 and 17' are connected in series are connected in parallel. A signal is transmitted from an external temperature sensor 19 to the capacitance control part 18.

公开(公告)号：JPH05164077A

公开(公告)日：1993-06-29

申请号：JP32851091

申请日：1991-12-12

Applicant: MATSUSHITA REFRIGERATION

Inventor： MANGYO MASAO ,  SAEKI YUJI

IPC: F04C29/12 ,  F04C29/00

Abstract: PURPOSE:To stabilize lubrication, and improve reliability by supplying oil, into which refrigerant is hardly mixed when a closed type rotary compressor is restarted, to respective sliding surfaces. CONSTITUTION:A suction pipe cover 22 formed of a polybutylene terephthalate tube is arranged so as to cover the outer periphery of a suction pipe 18, and a seal 23 is applied on the edge surface.

公开(公告)号：JPH04103974A

公开(公告)日：1992-04-06

申请号：JP21931990

申请日：1990-08-20

Applicant: MATSUSHITA REFRIGERATION

Inventor： SAEKI YUJI

IPC: F04B49/06 ,  F04B49/02 ,  F25B43/02

Abstract: PURPOSE:To reduce a starting load at the time when a rotary compressor is operated again and enable a stable and smooth starting of the operation of the compressor to be attained by a method wherein a cooling device of a freezing cycle and a storing device for accumulating oil of a freezer between a check valve and a suction pipe in a low pressure pipe passage for connecting a suction pipe of the rotary compressor are provided. CONSTITUTION:When a rotary compressor 1 is stopped, a pressure differential valve 19 is also closed as a check valve 20 of a fluid control valve 19 is closed, so that refrigerant gas of high pressure is accumulated in a condensor 16, a closed container 2 and an accumulator 31. At this time, since the accumulator 31 is separated from the rotary compressor 1, its temperature is low as compared with that of the closed container 2. Refrigerant started to resolve in the oil of freezer of the accumulator 31 and a pressure of refrigerant remained in a space across the rotary compressor restarts its operation, a pressure of the refrigerant gas across the rotary compressor is restricted low, so that a starting load is reduced and a stable smooth starting can be carried out.