CN100455811C

CN100455811C - Oil supplier of rotary compressor

Info

Publication number: CN100455811C
Application number: CNB2004100197177A
Authority: CN
Inventors: 曹畅荣
Original assignee: LG Electronics Tianjin Appliances Co Ltd
Current assignee: LG Electronics Tianjin Appliances Co Ltd
Priority date: 2004-06-21
Filing date: 2004-06-21
Publication date: 2009-01-28
Anticipated expiration: 2024-06-21
Also published as: CN1712724A

Abstract

The present invention relates to an oil supply device for a rotary compressor. The present invention comprises a closed container of which the bottom surface is provided with lubrication oil, a compressing mechanism which is installed inside the closed container and can compress cooling media according to the rotation of a rotating shaft, an oil flow passage which can supply lubrication oil to a friction part of the compressing mechanism and is provided with branches, an oil supply device which is installed inside the oil flow passage and can upward supply the oil accumulated at the bottom of the closed container, and an oil pipe installed at an inlet of the oil flow passage which is formed on the rotating shaft, wherein the closed container is provided with a suction opening and an exhausting opening; the oil flow passage is communicated with the inside of the rotating shaft in the long direction; the oil pipe is used for guiding the oil accumulated at the bottom of the closed container flow in, and is provided with a fixed slot of a fixed oil supply device simultaneously. Consequently, the present invention can prevent the oil supply device from disengaging from the installation location to be damaged.

Description

The oil supplying device of rotary compressor

Technical field

The present invention relates to the fluid supply apparatus of compressor, in more detail, relate to having and be installed as the fixedly fluid supply apparatus of the rotary compressor of the oil pipe of the fixed groove of the oil feeder of fuel feeding of friction part.

Background technique

In general, rotary compressor comes compression refrigerant without the rotor in the centrifugal force rotary cylinder, but by with the rolling piston of the rotation interlock that is installed in bent axle lower eccentric portion, along the inner peripheral surface corotation of cylinder and the machine that transfers suction, compression refrigerant certainly.

As shown in Figure 1, closed rotary compressor by inside form airtight containing space seal container 10, be installed in mechanism portion 20 in the seal container 10, be installed in the seal container 10 and drive by the mechanism portion 20 that connect and the compression mechanical part 30 of compression refrigerant and constitute for the oily supply unit 40 of the oil inside offering of seal container 10.

Seal container 10 is by forming the opening portion of opening, the vessel 11 that the bottom, side is provided with suction port 1 respectively at upside and downside, the upside opening portion of seal container 10 insert that definite part is installed and in the central the position be formed with exhaust port 4 on side cover 12, and insert the following side cover 13 that definite part installs in the open lower side portion of seal container 10 and constitute.

At seal container 10 suction ports 1 the refrigerant intake channel 2 that connects the internal flow refrigerant is installed, refrigerant intake channel 2 connects the liquid container 3 of a side.

Mechanism portion 20 is to be made of with being installed in stator 21 inboards and carrying out rotor rotated 22 stator 21 that is fixed on seal container 10 inside.

Compression mechanical part 30 is by being pressed into the running shaft 31 that the inside that is installed in rotor 22 and bottom are formed with eccentric part 31a, inside accommodate eccentric part 31a and with bolt in conjunction with the upper bearing 32 and the lower bearing 33 of supporting rotating shaft and be installed in the cylinder 35 of seal container 10 inside, inside links to each other with the eccentric part 31a that is formed on running shaft 31 1 sides, the rolling piston 36 that the outside joins with the inner face of cylinder 35 and carries out corotation and rotation with eccentric part 31a rotation, and rolling piston 36 outside sliding contacts cylinder 35 inner spaces be separated into high-voltage section and low voltage section and cylinder 35 radially do straight reciprocating motion be installed in that blade on the cylinder 35 is not shown to be constituted.

And, on certain position of upper bearing 32, be formed with the exhaust port 32a of the refrigerant of discharging compression, the pressure that compression refrigerant is installed on the exhaust port 32a reaches the expulsion valve (not shown) that certain value could be discharged when above, is equipped with above the upper bearing 32 and reduces the silencing apparatus 37 of discharging noise.

Oil supply unit 40 comprises: accumulate in seal container 10 bottoms a certain amount of oily 41, from a side of the bottom of running shaft 31 to its side terminal connect running shaft 31 the oily stream 42 that is formed centrally, its bottom surface of inlet side that has hat-shaped and be installed in oily stream 42 is formed with the oil pipe 43 of oily inflow entrance 43a again, be installed in the lower side of oily stream 42 inside and oil pipe 43 in abutting connection with and oil is passed the oil feeder with propeller cavitation shape 44 of upper lateral part.

Give the closed rotary compressor supply power of above-mentioned formation, the interaction of stator 21 and rotor 22 rotation running shaft 31 then, the rotation according to the eccentric part 31a of a side that is formed on running shaft 31 makes the rolling piston 36 that contacts with blade (not shown) be rotated in cylinder 35 inside again.Flowing into internal compression that the refrigerant of the low-temp low-pressure of compressor 3 is drawn into cylinder 35 by intake channel 2 suction ports 1 by above-mentioned rotation becomes the state of High Temperature High Pressure.

Wash expulsion valve (not shown) open and discharge by exhaust port 32a at the refrigerant of the High Temperature High Pressure of cylinder 35 compression, the refrigerant of discharge is through the inside of baffler 38 and seal container 10, exhaust port 4 discharges by being formed on side cover 12 again.

When rotary compressor was done to run well, the oil feeder 44 that links with running shaft 31 was rotated, and the oil 41 that accumulates in seal container 10 bottoms is by the ostium 43a inflow of oil pipe 44 and by oily stream 42 guiding risings; The oil that rises by oily stream 42 supplies near cylinder 35 and each friction part, and help cylinder 35 is rotated smoothly and compresses.

But, as mentioned above in the rotary compressor of structure, in order to force to move oil 41 oil feeder 44 that is rotated 31 support and interlock is pressed into the oily stream 42 inner structures that become to fix, therefore, after using the long period, because of fluff oil feeder 44 of its supporting portion can break away from mounting points, but the generation part damage can produce the problem that oil is supplied with decreased performance again.

Summary of the invention

In order to address the above problem, the object of the present invention is to provide the structure of the oil feeder of the fluid supply apparatus that improve to support rotary compressor prevent to turn round in oil feeder break away from the mounting point and sustain damage in order to avoid reduces the fluid supply apparatus of the rotary compressor of oil supply performance.

In order to achieve the above object, the fluid supply apparatus of rotary compressor provided by the invention comprises: the seal container of lubricant oil is gathered in the bottom surface that forms suction port and exhaust port, be installed in the inside of seal container and according to the compression mechanical part of the rotation compression refrigerant of running shaft, give the connecting interior of rotating shaft and have the oily stream of branch of friction part supplying lubricating oil of compression mechanical part at length direction, be installed in the inside of oily stream and will accumulate in the oil feeder that the oil of seal container bottom surface upwards provides, and be installed in and have the fixedly oil pipe of the fixed groove of oil feeder when oil that the oily stream entrance part that forms on the running shaft and guiding accumulate in the seal container bottom surface flows into.

Above-mentioned oil pipe has hat-shaped, is formed with the fixing depression certain depth of oil feeder bi-side and the fixed groove that prolongs to the bottom surface direction of inserting on the bi-side in the opening portion of the oily stream of fixing insertion, and its bottom surface has oily ostium.

Form the mounting structure that is inserted into again behind the fixing side end that inserts oil feeder of fixed groove that the opening portion side at oil pipe forms in the oily stream according to the fluid supply apparatus of aforesaid rotary compressor of the present invention, can prevent that in use oil feeder breaks away from the mounting point, so the life-span that prolongs product is arranged and prevent that oil from supplying with performance low and improve the effect of product image.

Description of drawings

Fig. 1 is the internal structure sectional drawing of the rotary compressor of prior art.

Fig. 2 is that the part of fluid supply apparatus among Fig. 1 enlarges sectional drawing.

Fig. 3 is the exploded perspective view of fluid supply apparatus of the rotary compressor of the embodiment of the invention.

Fig. 4 is that the part of the rotary compressor fluid supply apparatus installment state of the embodiment of the invention enlarges sectional drawing.

The symbol description of major component in the accompanying drawing:

10: seal container 20: mechanism portion

30: compression mechanical part 40: oily supply unit

41: oil 42: oily stream

44: oil feeder 143: oil pipe

143b: fixed groove

Embodiment

Explain the embodiment of the fluid supply apparatus of rotary compressor of the present invention with reference to accompanying drawing, and adopt same-sign to describe with the same part of pre-structure.

Fig. 3 is the exploded perspective view of fluid supply apparatus of the rotary compressor of one embodiment of the invention, and Fig. 4 is that the part of installment state of fluid supply apparatus of the rotary compressor of one embodiment of the invention enlarges sectional drawing.As shown in the figure, rotary compressor of the present invention is formed the seal container 10 of airtight containing space by inside, be installed in the mechanism portion 20 of seal container 10 inside, be installed in the compression mechanical part 30 of seal container 10 inner connection mechanism portion 20 drivings and compression refrigerant and constitute for the oily supply unit 40 of the oil inside offering of seal container.

Compression mechanical part 30 comprises: be installed in the inner face of rotor 22 and the running shaft 31 that the bottom is formed with eccentric part 31a, be installed in seal container 10 inside, accommodate eccentric part 31a and use bolt in conjunction with the upper bearing 32 of supporting rotating shaft and the cylinder 35 of lower bearing 33, inner face joins with the eccentric part 31a that is formed on running shaft 31 1 sides, the rolling piston 36 that the outside joins with the inner face of cylinder 35 and carries out corotation and rotation with the rotation of eccentric part 31a, and be separated into high-voltage section and low voltage section with rolling piston 36 outside sliding contacts and cylinder 35 inner spaces and at the blade (not shown) on the cylinder 35 of being installed in of radially doing straight reciprocating motion of cylinder 35.

And, be formed with the exhaust port 32a that discharges compression refrigerant on certain position of upper bearing 32, the refrigerant pressure that compression is installed on the exhaust port 32a reaches the expulsion valve (not shown) that certain value could be discharged when above, is equipped with above the upper bearing 32 and reduces the silencing apparatus 37 of discharging noise.

Oil supply unit 40 comprises: accumulate in a certain amount of oily 41 of seal container 10 bottoms, connect running shaft 31 central part and from a side of the bottom of running shaft 31 to the terminal oily stream 42 that forms that connects of its side, insert the entrance part of oily stream 42, respectively lining is formed certain cup depth in the inner side surface both sides and prolong the fixed groove 143b of certain-length to the bottom surface direction, its bottom surface is formed with the oil pipe with hat-shaped 143 of oily ostium 143a again, and the fixed groove 143b of oil pipe 143 fixing insert the one side terminal and and 143 1 in oil pipe fixedly be inserted in the oily stream 42, make oil be movable to the oil feeder with propeller cavitation shape 44 of upper lateral part.

Running shaft 31 rotations of the closed rotary compressor of above-mentioned formation are identical with the compressor of process from compression discharge to cylinder 35 inside that import refrigerants and and structure noted earlier, and the process that its oily supply unit 40 moves is described below.

When above-mentioned rotary compressor is done to run well, be rotated with the oil feeder 44 of running shaft 31 interlocks, the oil 41 that accumulates in seal container 10 bottoms flows into and is directed to rise along oily stream 42 by the oily ostium 143a of oil pipe 143, and the oil that rises by oily stream 42 supplies near the cylinder 35 and each friction part is rotated and carries out compression smoothly to help cylinder 35.At this moment, the terminal bi-side of one side of oil feeder 44 under the stationary state that inserts the fixed groove 143b that oil pipe 143 opening portion sides form and oil pipe 143 inside that is inserted into oily stream 42 together fix, break away from mounting points so long-time use also can prevent oil feeder 44.

The fluid supply apparatus of rotary compressor involved in the present invention is the fixing mounting structure that is inserted into again behind the oil feeder 44 1 side ends oily stream 42 in, the oil feeder 44 disengaging mounting points in preventing to use of inserting in the fixed groove 143b that the opening portion side of oil pipe 143 forms respectively.

Claims

1, a kind of fluid supply apparatus of rotary compressor, it is characterized in that comprising: be formed with suction port and exhaust port, the seal container of lubricant oil is gathered in its bottom surface, it is inner and according to the compression mechanical part of the rotation compression refrigerant of running shaft to be installed in seal container, give the connecting interior of rotating shaft and the oily stream of branch is arranged of friction part supplying lubricating oil of compression mechanical part at length direction, be installed in the oil feeder that the lubricant oil that will accumulate in the seal container bottom surface in the oily stream is upwards supplied with, and be installed in the fixedly oil pipe of the fixed groove of oil feeder that has that oil that the oily stream entrance part that forms on the running shaft and guiding accumulate in the seal container bottom surface flows into; Oil pipe has hat-shaped, is formed with depression certain depth that inserts the oil feeder bi-side and the fixed groove that prolongs to the bottom surface direction on the bi-side in the opening portion of the oily stream of the fixing insertion of oil pipe, and the oil pipe bottom surface has oily ostium.