CN102200131A

CN102200131A - Discharging structure for reducing lubricant in compressor

Info

Publication number: CN102200131A
Application number: CN2010101290198A
Authority: CN
Inventors: 许崇文
Original assignee: LG Electronics Tianjin Appliances Co Ltd
Current assignee: LG Electronics Tianjin Appliances Co Ltd
Priority date: 2010-03-22
Filing date: 2010-03-22
Publication date: 2011-09-28

Abstract

The invention discloses a discharging structure for reducing lubricant in a compressor. The compressor comprises a shell, wherein a motor is arranged on the upper side inside the shell; a compressor component is arranged on the lower side of the motor at intervals; the motor consists of a stator, a rotor and a crank shaft; the compressor component consists of a cylinder, a silencer, an upper bearing and a lower bearing; an oil guiding hole is axially formed inside the crank shaft; a spiral groove is formed on the outer surface of the crank shaft; an oil baffle cover is fixed on a balance block, and consists of a connecting disc and a cover body; and the appearance of the cover body is in a streamline shape. By the discharging structure, the discharge amount of lubricant is greatly reduced, and the efficiency of the compressor is improved.

Description

Reduce the exhaust structure of lubricant oil in the compressor

Technical field

The invention belongs to a kind of hermetic type compressor, be specifically related to a kind of bottom and oil blocking cover be set, on the bent axle outer surface, form spiral chute, make the structure that the lubricant oil discharge capacity reduces in the compressor at loam cake.

Background technique

As shown in Figure 1, the compressor of prior art, the upper inside that is included in housing 1 is equipped with motor 20, at the downside of motor 20 compressor assembly 30 that is equipped with separated by a distance.Housing 1 is made up of cylindrical drum 11, loam cake 12 and the lower cover 13 of hollow.Motor 20 is pressed on the inner peripheral surface that is fixed on cylindrical shell 11, and it is made up of stator 21, rotor 22 and the rotary crankshaft 23 that is pressed into the center that is fixed on rotor 22 and transmits rotating force, forms oil guiding hole 24 vertically in the inside of bent axle 23.Be provided with equilibrium block 25 at the top of rotor 22.

Compressor assembly 30 comprises cylinder 31, upper bearing (metal) 32 and lower bearing 33, at the inner eccentric part 23a that forms rotary crankshaft 23 of the compression volume C of cylinder 31, in the outside of eccentric part 23a, being provided with can rotation and the rolling piston 35 of revolution by eccentric part 23a, one side contacts with the excircle upper thread of rolling piston 35, and is the structures such as baffle plate of suction area and compressing area with the compression volume C zoning that the outer peripheral surface of the inner peripheral surface of cylinder 31 and rolling piston 35 forms.The suction port (not shown) that also is communicated with the suction pipe in the suction area in the cylinder 31, and the exhaust port (not shown) that is used to discharge compressed media in the compressing area.

In addition, be provided with exhaust port (not shown) in the upper bearing 32, its upside binding is fixed with baffler 34, is used to reduce the noise that is produced by pressure difference from the compressed media gas of exhaust port discharge.Be provided with suction pipe 14 in the bottom of seal casinghousing 1, be discharged to seal casinghousing 1 outside, on loam cake 12, be provided with discharge tube 15 for making dielectric gas by baffler 34.

But, in the hermetic type compressor of prior art, the suction port of discharge tube 15 faces the outlet of the oil guide pipe 24 in the bent axle 23, the lubricant oil that flows out from the outlet of oil guide pipe 24 is easy to along with the High Temperature High Pressure cold media air flows into discharge tube 15 together, this has not only strengthened the discharge capacity of lubricant oil, and make and sneak into more lubricant oil in the High Temperature High Pressure cold media air, also reduced the efficient of compressor.

Summary of the invention

The present invention is for the shortcoming that overcomes prior art proposes, and its objective is provides a kind of bottom at loam cake oil blocking cover to be set, to form spiral chute on the bent axle outer surface, makes the structure that the lubricant oil discharge capacity reduces in the compressor.

Technological scheme of the present invention is: a kind of exhaust structure that reduces lubricant oil in the compressor, described compressor comprises housing, housing is made up of cylindrical drum, loam cake and the lower cover of hollow, upper inside at housing is equipped with motor, at the downside of the motor compressor assembly that is equipped with separated by a distance, motor is pressed on the inner peripheral surface that is fixed on cylindrical shell, and it is by stator, rotor and be pressed into the rotary crankshaft that is fixed on centre of rotor and transmits rotating force and form.

Compressor assembly is made up of cylinder, baffler, upper bearing (metal) and lower bearing, forms oil guiding hole vertically in bent axle inside, the eccentric part of installing on bent axle.

Oil blocking cover is fixed on above the equilibrium block.

Outer surface at bent axle forms spiral chute.

Described oil blocking cover is made up of land and cover body, forms cover body in the bottom of land, cover body top down, semicircular in shape.

The profile of described cover body is streamlined.

The present invention is owing to oil blocking cover being set in the bottom of loam cake, forming spiral chute formation spiral chute on the bent axle outer surface, oil blocking cover has stopped the lubricant oil mist of oil that flows out from the outlet of oil guide pipe to exhaust pipe flow, and the spiral chute guiding lubricant oil on the bent axle flows into the bottom oil groove of compressor housing downwards.So not only reduce the discharge capacity of lubricant oil widely, and improved the efficient of compressor.

Description of drawings

Fig. 1 is the longitudinal sectional drawing of the compressor of prior art;

Fig. 2 is the longitudinal sectional drawing that the compressor of the exhaust structure of lubricant oil in the minimizing compressor of the present invention has been installed;

Fig. 3 is the spiral fluted bent axle plan view that has of the present invention;

Fig. 4 is the stereogram of oil blocking cover of the present invention;

Fig. 5 is the plan view of oil blocking cover of the present invention;

Fig. 6 is the plan view of oil blocking cover of the present invention.

Wherein: 1 housing, 11 cylindrical shells

12 loam cakes, 13 lower covers

20 motors, 21 stators

22 rotors, 23 bent axles

23a eccentric part 25 equilibrium blocks

30 compressor assemblies, 31 cylinders

32 upper bearing (metal)s, 33 lower bearings

34 bafflers, 35 pistons

40 motors, 41 bent axles

41a eccentric part 42 spiral chutes

50 oil blocking covers, 51 lands

52 cover bodies, 53 attachment holes

54 oblong aperture

Embodiment

Below, be elaborated with reference to the exhaust structure of drawings and Examples to lubricant oil in the minimizing compressor of the present invention:

The identical label of employing that component of the present invention are identical with the component of prior art.

Shown in Fig. 2～6, a kind of exhaust structure that reduces lubricant oil in the compressor, described compressor comprises housing 1, housing 1 is made up of cylindrical drum 11, loam cake 12 and the lower cover 13 of hollow.Upper inside at housing 1 is equipped with motor 40, at the downside of motor 40 compressor assembly 30 that is equipped with separated by a distance.Motor 40 is pressed on the inner peripheral surface that is fixed on cylindrical shell 11, and it is made up of stator 21, rotor 22 and the rotary crankshaft 41 that is pressed into the center that is fixed on rotor 22 and transmits rotating force.Be provided with equilibrium block 25 at the top of rotor 22.

Form oil guiding hole 24 vertically in bent axle 41 inside, at the outer surface formation spiral chute 42 of bent axle 41, the eccentric part 41a that on bent axle 41, installs.

Compressor assembly 30 comprises cylinder 31, upper bearing (metal) 32 and lower bearing 33.Eccentric part 41a is positioned at compression volume C.Having in the arranged outside of eccentric part 41a can rotation and the rolling piston 35 of revolution, also is communicated with the suction port of the suction pipe in the suction area in the cylinder 31, and the exhaust port that is used to discharge compressed media in the compressing area.

Upper bearing (metal) 32 is positioned at the top of cylinder 31, is provided with exhaust port in upper bearing (metal) 32, and its upside binding is fixed with baffler 34, is used to reduce the noise that is produced by pressure difference from the compressed media gas of exhaust port discharge.Be provided with suction pipe 14 in the bottom of seal casinghousing 1, on loam cake 12, be provided with discharge tube 15 for making dielectric gas by baffler 34 be discharged to seal casinghousing 1 outside.

Oil blocking cover 50 is fixed on above the equilibrium block 25, and oil blocking cover 50 is made up of land 51 and cover body 52, and land 51 is circular tabular, forms a plurality of uniform attachment holes 53 near outer rim on land 51, and the present invention is four.Cover body 52 is formed at the bottom at land 51, cover body 52 top down, semicircular in shape, the profile of cover body 52 is streamlined, forms a plurality of uniform oblong aperture 54 at the middle part of cover body 52, the present invention is three, and the lubricant oil of oil blocking cover 50 outsides can flow in the spiral chute 42 by oblong aperture 54.

Fixedly connected with rotor 22 by attachment hole 53 with rivet or screw.

Claims

1. exhaust structure that reduces lubricant oil in the compressor, described compressor comprises housing (1), housing (1) is by the cylindrical drum (11) of hollow, loam cake (12) and lower cover (13) are formed, upper inside at housing (1) is equipped with motor (40), at the downside of motor (40) compressor assembly (30) that is equipped with separated by a distance, motor (40) is pressed on the inner peripheral surface that is fixed on cylindrical shell (11), it is by stator (21), rotor (22) and the rotary crankshaft (41) that is pressed into the center that is fixed on rotor (22) and transmits rotating force are formed, compressor assembly (30) is by cylinder (31), baffler (34), upper bearing (metal) (32) and lower bearing (33) are formed, it is characterized in that: form oil guiding hole (24) vertically in bent axle (41) inside, go up the eccentric part of installing (41a) at bent axle (41), oil blocking cover (50) is fixed on above the equilibrium block (25).

2. the exhaust structure of lubricant oil in the minimizing compressor according to claim 1 is characterized in that: the outer surface at bent axle (41) forms spiral chute (42).

3. the exhaust structure of lubricant oil in the minimizing compressor according to claim 1, it is characterized in that: described oil blocking cover (50) is made up of land (51) and cover body (52), form cover body (52) in the bottom of land (51), cover body (52) top down, semicircular in shape.

4. the exhaust structure of lubricant oil in the minimizing compressor according to claim 3, it is characterized in that: the profile of described cover body (52) is streamlined.

5. the exhaust structure of lubricant oil is characterized in that: form a plurality of uniform oblong aperture (54) at the middle part of described cover body (52) in the minimizing compressor according to claim 3.