Sanyo Electric Co., Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Satoshi Iitsuka

Atsushi Sakuda

Kazuyoshi Sugimoto

Yoshinori Ishida

Yasunori Kiyokawa

Yusuke Imai

Tsutomu Kon

Akihiro Hayashi

Katsuki Akuzawa

Kenji Aida

Yoshihiko Nagase

Yoshiaki Nagasawa

Yoshiaki Koike

Yasuo Sakamoto

Akinori Fukuda

Daisuke Ogi

Kazuya Sato

Yusaku Araki

Hiroki Tagami

Fukuda Akinori

Yasunori Kiyowawa

A scroll compression mechanismfor compressing refrigerant and a driving motorthat is connected to the scroll compression mechanismthrough a driving shaftand drives the scroll compression mechanismare accommodated in a casingthe scroll compression mechanismis supported in the casingby a main framea statorof the driving motoris directly or indirectly supported in the casingand the driving shaftis connected to a rotorof the driving motorand supported in the casingby a bearing plateand a lower end of the driving shaftis supported by a thrust plateprovided to the bearing plateand the center position of the rotoris located to be lower than the center position of the stator

Scroll compression device

A scroll compression mechanismfor compressing refrigerant and a driving motorthat drives the scroll compression mechanismare accommodated in a casing, the scroll compression mechanismis supported in the casingby a main frame, the driving shaftis connected to a rotorof the driving motorand supported in the casingby a bearing plate, a pickupis connected to an oil supply pathextending in an up-and-down direction in the driving shaft, and intercommunication pathsB,A through which lubrication oil scraped up by the pickupand supplied to respective lubrication sites is returned to the lower side of the driving motorare provided between the statorand the spacer ringor between the spacer ringand the casing

A scroll compression device that prevents scattering of lubrication oil to a discharge pipe side is provided. A cup 48 which is opened at the lower portion thereof and prevents scattering of lubrication oil is disposed on the lower surface of the main frame 21, and an annular insulator 19 having a double wall structure which surrounds windings is disposed on the upper surface of a stator 37. The peripheral wall of the cup 48 is hung between the double walls 19A, 19B of the insulator.

A scroll compression device that is adaptable to a larger elimination capacity by using a balancer of magnetic material is provided. A scroll compression mechanismfor compressing refrigerant and a driving motorthat is connected to the scroll compression mechanismthrough a driving shaftand drives the scroll compression mechanismare accommodated in a casingthe scroll compression mechanismis supported in the casing by a main framea rotorof the driving motoris connected to the driving shaftthe driving shaftis supported in the casing by a bearing platean upper balancerof magnetic material is secured onto the shaft above the statorof the driving shafta lower balancerof non-magnetic material is secured to the lower end of the rotorand an auxiliary balancerof non-magnetic material is secured in the gap between the upper end of the rotorand the upper balancer

A scroll compressor including a casing, a scroll compression mechanism that compresses refrigerant, a driving motor that has a driving shaft, an insulator and a stator, and is connected to the scroll compression mechanism through the driving shaft to drive the scroll compression mechanism, a main frame that supports the scroll compression mechanism in the casing, a bearing plate that has a boss portion in which the driving shaft is inserted, and supports the driving shaft of the driving motor in the casing, and a cover that covers the surrounding of the driving shaft between the driving motor and the bearing plate and is formed of an insulating material and provided to the insulator of the driving motor.

Scroll compressor with cover covering driving shaft of driving motor

A scroll compressor including a casing, a scroll compression mechanism that compresses refrigerant, a driving motor that has a driving shaft and is connected to the scroll compression mechanism through the driving shaft to drive the scroll compression mechanism, a main frame that supports the scroll compression mechanism in the casing, a bearing plate that supports the driving shaft of the driving motor in the casing and has an opening portion through which upper and lower spaces above and below the bearing plate intercommunicate with each other, and a first cover that covers the surrounding of the driving shaft between the driving motor and the bearing plate, wherein the cover is configured so as to be passable through the opening portion.

A scroll type compressor including a fixed scroll, a movable scroll engaged with the fixed scroll, and a hermetically sealed container in which the fixed scroll and the movable scroll are mounted. The fixed scroll or the movable scroll has an intercommunication path for lubricating oil that is opened to the outside of the one scroll at one end thereof, extends radially inside the scroll and has a high-pressure opening intercommunicating with a high-pressure portion of the container and a low-pressure opening intercommunicating with a low-pressure portion in the scroll, a pin member disposed in the intercommunication path so as to be movable radially in the scroll, a screw member closing one end of the intercommunication path, and a stopper provided at a predetermined position in the intercommunication path to regulate radial movement of the pin member.

Scroll type compressor having an intercommunication path in which a pin member is inserted

There is disclosed a scroll compressor which can lower the noise level of a harsh frequency without taking a lot of troubles. In a sealed container, a scroll compression element and an electromotive element are provided. The scroll compression element is constituted of a fixed scroll including a vertically provided spiral lap, and a swingable scroll including a vertically provided spiral lap and swiveled by a rotary shaft of the electromotive element with respect to the fixed scroll. A refrigerant compressed by gradually reducing, from the outside to the inside, a plurality of compression spaces formed by engaging both the laps with each other is discharged to a discharge pressure space in the sealed container.

Scroll compressor having through holes with a set depth

A scroll type compressor includes a fixed scroll having a suction opening, a movable scroll, a hermetically sealed container having an upper cap, and a suction pipe that penetrates through the upper cap and is engagedly fitted through an O ring in the suction opening of the fixed scroll at a lower portion thereof. The upper cap includes a pipe stand formed of iron at a suction-pipe penetrating portion thereof. The suction pipe comprises an iron lower suction member that is engagedly fitted in the suction opening of the fixed scroll and an O-ring groove in which the O ring is fitted, and a copper upper suction member that is joined to the lower suction member by brazing and engagedly fitted in the pipe stand. The upper suction member and the pipe stand are joined to each other by brazing.

Scroll type compressor including a suction pipe having iron portion and copper portion

There is disclosed a scroll compressor capable of improving the oil separating device of a refrigerant gas discharged from a scroll compression element to effectively suppress the amount of oil to be discharged through a discharge tube. The scroll compressor has, in a sealed container, a scroll compression element, a motor element which drives the scroll compression element, and a support frame having a bearing portion which keeps a shaft of the motor element, and provided with a communication path. The scroll compressor further includes a shield plate which extends from the support frame to the motor element side to surround the periphery of the bearing portion, and a guide member provided at an outlet of the communication path to guide the discharged gas in the direction of the shield plate.

Growing community of inventors

Gunma-ken, Japan

Satoshi Iitsuka