CN100343523C

CN100343523C - Vortex compressor

Info

Publication number: CN100343523C
Application number: CNB021581371A
Authority: CN
Inventors: 金正熏
Original assignee: LG Electronics Tianjin Appliances Co Ltd
Current assignee: LG Electronics Tianjin Appliances Co Ltd
Priority date: 2002-12-25
Filing date: 2002-12-25
Publication date: 2007-10-17
Anticipated expiration: 2022-12-25
Also published as: CN1510275A

Abstract

The present invention provides a vortex type compressor which comprises a main body of a shell and a rotary shaft, wherein a shell lower cover connected with a lower frame supporting the rotary shaft is arranged at the lower part of the inner side of the main body of the shell, and the shell lower cover is fixed at the lower end of the main body of the shell in a sealing mode. The present invention has the effect that the lower frame of the vortex compressor is connected with the shell lower cover to form a whole to support the rotary shaft, and the lower end part of the shell of the compressor is sealed to support the compressor. The concentricity nonconformity caused by the welding procedure is reduced, the deformation of the rotary shaft is prevented, and the starting time of the compressor is reduced. The efficiency is improved, and the production efficiency is improved since the reduction of the welding procedure.

Description

Scroll compressor

Technical field

The present invention is the invention of relevant scroll compressor, the scroll compressor of the housing lower cover that particularly a kind of and rotating shaft scroll compressor is connected as a single entity.

Background technique

As depicted in figs. 1 and 2, be welded with upper stand 113 on the housing inboard of existing scroll compressor 100, its underpart is welded with lower framework 114.The housing of compressor is to be made of the loam cake 111 of columnar body 110 and its upper end portion sealing combination and the lower cover 112 of underpart sealing combination.The survey portion of upper stand 113 and lower framework 114 inserts at least and is fixed with more than one soldering pin 115, inserts the interior rear flank of enclosure body 110, on the inside face of enclosure body 110 by the fixing soldering pin 115 of spot welding.

The electromechanical part that is fixed with stator 120 between the upper stand 113 of the interior welds combination of enclosure body 110 and the lower framework 114 and constitutes in the inboard rotor rotated 121 of its stator 120; The upper and lower end of its rotor 121 is provided with the equilibrium block of adjusting spin balancing when rotor 121 rotations.The center of rotor 121 is pressed into the running shaft 122 that is fixed with in rotor 121 rotations, insert on the upper end portion of running shaft 122 and be supported with upper stand 113, the underpart is inserted and is supported with lower framework 114, and upper stand 113 and lower framework 114 rotate jointly with running shaft 122.

By the oil circuit 124 that vertical perforation running shaft 122 forms, through the oilhole 123 that the underpart of running shaft 122 is provided with, the oil in the lower cover 112 is taken out upwards extracting, offer the friction position of compression mechanical portion.

The movable orbiting scroll 131 of static vortex disk 134 that the upside of upper stand 113 is fixing and rotation combination between upper stand 113 forms compression mechanical portion.On the joining hole of the fixture 133 that forms on the underpart of its movable orbiting scroll 131, insert the eccentric part 125 of the upper end portion off-centre that makes running shaft 122 of combination.

Rotation along with movable orbiting scroll 131, refrigerant intake channel (not shown) formation that makes the blade 135 that is combined in fixed eddy plate carry out the movable orbiting scroll blade 132 of line rotation and in the compression chamber p that decides formation between vortex 134 blades 135 and the movable orbiting scroll blade 132, enter refrigerant, the volume-diminished that has also formed compression chamber p is carried out the compression of refrigerant, deciding to be provided with exhaust port 136 on the vortex 134, make compression refrigerant move to middle body.By exhaust port 136 refrigerant of compression is discharged static vortex disk 131 toward the outside.

Prevent that the individual event valve assembly body of being made up of conductor 147 145 does not break away from its supporting frame valve 146 by the adverse current of the refrigerant of exhaust port 136 discharges, promptly refrigerant can only be discharged.

The side of enclosure body 110 is provided with the sucking pipe 140 that sucks refrigerant according to the certain height difference and for the outlet pipe 144 of the refrigerant of the side compression of discharging loam cake 111.The top of static vortex disk 134 is provided with high low pressure separator disk 143, be divided into exist to separate the refrigerant that enters into the low voltage section 141 of cold media air of compressor and its suction by sucking pipe 140 press part is compressed after, discharge by outlet pipe 144 before the high-voltage section 142 of existence.

According to aforesaid structure, the inside upper part solder bond of the enclosure body 110 of scroll compressor 100 has upper bearing 113, its underpart is inserted and is fixed with stator 120, its inside is inserted with rotor 121, the central part of rotor 121 is pressed into fixing running shaft 122 rotation, and the soldering pin 115 that inserts on the side of the lower framework 112 of support fixation is along 110 circumference welding of enclosure body, for the lower cover 112 of the lower end of seal casinghousing body 110, along the circumference solder bond of underpart.

After upper stand 113 welding of scroll compressor 100, welding is inserted rotor 121 and is made its rotatably supported lower framework 114, the concentricity that has upper stand 113 and lower framework 114 is inconsistent, causes that the startup of scroll compressor 100 is slow, has reduced efficient; Processing before and after welding process and the welding is also cumbersome, and the problem that reduces manufacturing efficiency is also arranged.

Summary of the invention

In order to address the above problem, the purpose of this invention is to provide and a kind of welding engineering is minimized, its thermal distortion is minimized, improved efficient; The welding that prevents the upper stand of enclosure body inside and lower framework causes the distortion of running shaft, to solve the scroll compressor of the problem that concentricity differs.

For achieving the above object, the invention provides a kind of scroll compressor, include enclosure body, running shaft, lower inside in this enclosure body is provided with the housing lower cover, the housing lower cover is the revolution cambered surface, housing lower cover apical margin is close to the lower framework bottom, the lower framework of housing lower cover and horizontal support running shaft is connected as a single entity, housing lower cover sealing and fixing is in the lower end of enclosure body, the inside, lower end of running shaft is provided with oilhole, oilhole sucts the oil of the bottom of housing lower cover, and the oil circuit that vertically connects formation of the center portion by running shaft is provided to the friction position of compression mechanical portion again.

Effect of the present invention is the lower framework of scroll compressor and the housing lower cover supporting rotating shaft that is connected as a single entity, and supports compressor is come in seal compression engine housing underpart.Differ thereby reduced the concentricity that welding process causes, also prevented the distortion of running shaft, the startup that has reduced compressor is slow, has improved efficient, because of the minimizing of welding process, and improved manufacturing efficiency.

Description of drawings

Fig. 1 is the sectional arrangement drawing of existing scroll compressor;

Fig. 2 is that sectional arrangement drawing is amplified in the part of existing scroll compressor;

Fig. 3 is the sectional arrangement drawing of scroll compressor of the present invention;

Fig. 4 is that sectional arrangement drawing is amplified in the part of scroll compressor of the present invention.

Among the figure:

100: scroll compressor 110: enclosure body

12: housing lower cover 13: upper stand

14: lower framework 15: lower cover

140: sucking pipe 141: low voltage section

142: high-voltage section 143: the high low pressure separator disk

144: outlet pipe

Embodiment

Following embodiment with reference to accompanying drawing and scroll compressor of the present invention is illustrated.

Fig. 3 is the sectional arrangement drawing of scroll compressor of the present invention, and Fig. 4 is that sectional arrangement drawing is amplified in the part of scroll compressor of the present invention.Scroll compressor of the present invention, its structure includes enclosure body, running shaft, lower inside in enclosure body is provided with housing lower cover 12, housing lower cover 12 is the revolution cambered surface, the apical margin of housing lower cover 12 is close to lower framework 14 bottoms, housing lower cover 12 is connected as a single entity with the lower framework 14 of horizontal support running shaft 122, and described housing lower cover 12 sealing and fixing are in the lower end of described enclosure body 110.

The structure and the working procedure of scroll compressor of the present invention are:

As shown in Figure 3 and Figure 4, scroll compressor 100 of the present invention is that the lower inside at compressor housing body 110 is provided with the housing lower cover 12 that the lower framework 14 with supporting rotating shaft 122 is connected as a single entity, described housing lower cover 12 sealing and fixing link together enclosure body 110 and housing lower cover 12 by welding in the lower end of described enclosure body 110.

As shown in Figure 3 and Figure 4, the inside upper part solder bond of scroll compressor 100 of the present invention is the upper stand 13 of compression mechanical portion, its underpart possesses in order to pass on the electromechanical part of driving force, and the underpart solder bond of enclosure body 110 has the housing lower cover 12 integrally formed with lower framework 14.

The upper stand 113 of solder bond on the inside of enclosure body 110, the housing lower cover 12 of solder bond on the underpart of enclosure body 110, the stator of fixing between upper stand 113 and the housing lower cover 12 120, the inboard of its stator 120 is provided with rotation and carries out the electromechanical part that the rotor 121 of combination constitutes, and the top and the bottom of its rotor 121 are equipped with the equilibrium block of balanced rotation when adjusting rotor 121 rotations.

The center of rotor 121 is pressed into the running shaft 122 that rotates simultaneously when being fixed with rotor 121 rotations, and the upper end portion of above-mentioned running shaft 122 is provided with upper stand 113, and the underpart is provided with housing lower cover 12 and inserts fixing rotatably.

The inside, lower end of running shaft 122 is provided with the oil of the bottom of lower cover is sucted, and the central part by running shaft 122 connects the oilhole 123 that the oil circuit 124 that forms is provided to the friction position of compression mechanical portion to longitudinal direction again.

The upside of upper stand 113 is fixed with static vortex disk 134, and the compression mechanical portion that the movable orbiting scroll 131 of combination constitutes is carried out in rotation between its static vortex disk 134 and the upper stand 113.Insert in the joining hole of the fixture 33 that forms on the underpart of its movable orbiting scroll 131 and be combined with at the eccentric eccentric part 133 that forms in the upper end portion of running shaft 122.

Rotation along with movable orbiting scroll 131, the refrigerant intake channel (not shown) that enters refrigerant in the compression chamber p that makes the blade 132 that is combined in movable orbiting scroll 131 carry out forming between the blade 135 of static vortex disk 134 of line rotation forms, the volume-diminished that has also formed compression chamber p is carried out the compression of refrigerant, deciding to be provided with exhaust port 136 on the vortex 134, make compression refrigerant move to middle body.By the past outside static vortex disk 131 of discharging of the refrigerant of 136 compressions of exhaust port.

The side of the enclosure body 110 of scroll compressor 100 is provided with according to the certain height difference, for the sucking pipe 140 that sucks refrigerant with for the outlet pipe 144 of the refrigerant of discharging compression.The top of static vortex disk 134 is provided with high low pressure separator disk 143, be divided into exist to separate the refrigerant that enters into the low voltage section 141 of cold media air of compressor and its suction by sucking pipe 140 press part is compressed after, discharge by outlet pipe 144 before the high-voltage section 142 of existence.

Housing lower cover 12 is connected as a single entity with the lower framework 14 that bearing is arranged on central part that running shaft 122 rotations are supported, and supports scroll compressor, forms the space that oil is accommodated in the bottom simultaneously.

According to aforesaid structure, the inside upper part solder bond of the enclosure body 110 of scroll compressor 100 has upper bearing 13, its underpart is inserted and is fixed with stator 120, its inner rotation is inserted with rotor 121, the central part of rotor 121 is pressed into 122 rotations of fixing running shaft, the soldering pin that inserts on the side of the housing lower cover 12 of support fixation is along 110 the circumference welding of enclosure body, for the housing lower cover 12 of the lower end of the seal casinghousing body 110 circumference solder bond along the underpart.

The integrally formed supporting rotating shaft possibly that rotates of the lower framework of scroll compressor and housing lower cover according to the present invention, supports compressor is come in seal compression engine housing underpart.Thereby reduced inconsistent with one heart that welding engineering causes.Prevented the shaft distortion of running shaft, avoided compressor start slow, improved efficient, reduced, improved manufacturing efficiency because of the management work before and after welding process and the welding.

Claims

1, a kind of scroll compressor, its structure includes enclosure body, running shaft, it is characterized in that: the lower inside in described enclosure body (110) is provided with housing lower cover (12), housing lower cover (12) is the revolution cambered surface, housing lower cover (12) apical margin is close to lower framework (14) bottom, housing lower cover (12) is connected as a single entity with the lower framework (14) of horizontal support running shaft (122), housing lower cover (12) sealing and fixing is in the lower end of enclosure body (110), the inside, lower end of running shaft (122) is provided with oilhole (123), oilhole (123) sucts the oil of the bottom of housing lower cover (12), and the oil circuit (124) that vertically connects formation of the center portion by running shaft (122) is provided to the friction position of compression mechanical portion again.