KR100202892B1 - Cylinder o-ring inserter of a compressor - Google Patents

Abstract

The present invention relates to a compressor cylinder O-ring inserter for inserting an O-ring, which maintains air-tightness of a refrigerant flowing into a cylinder through a suction muffler, in a hermetic compressor of a refrigerator into a cylinder without damaging it.

The mechanism includes a shaft 35 formed in the shape of a bar and provided with a handle 35a at one end thereof; A jig 33 which is formed at the tip end of the shaft 35 with the same shape as that of the inclined portion 13a of the cylinder 13 and which is arranged to support and align the O-ring; Ring 20 is formed to have the same diameter as the inner diameter of the O-ring 20 while extending in the longitudinal direction of the shaft 33 in front of the jig 33 and the O-ring 20 is formed in the O-ring seating portion 13b of the cylinder 13 And a guide portion (31) for stably inserting the guide portion (31).

Accordingly, in the hermetic compressor in which the O-ring inserting machine is introduced to connect the refrigerant circulating in the refrigerator to the cylinder, the O-ring is easily inserted into the cylinder without damage such as collapsing the O- And the lubricity of the lubricating oil is ensured, thereby improving the efficiency and compression performance of the compressor and reducing the number of workings, thereby contributing to the improvement of productivity.

Description

Cylinder O-ring inserter of compressor

The present invention relates to a hermetic compressor cylinder O-ring inserter used in a refrigerator, and more particularly, to a hermetic compressor of a hermetic compressor connected to a pipe through which a refrigerant of a refrigerator circulates, a hermeticity of a refrigerant flowing into the cylinder through a suction muffler, And a compressor cylinder O-ring inserter for inserting an O-ring for maintaining the fluidity of the lubricating oil into the cylinder without damaging it.

The compressor of the refrigerator typically has a means for sucking and discharging the refrigerant into the inside of the enclosure, and is used as means for converting the rotational force by the electric energy into the mechanical energy of the reciprocating motion.

The refrigerant having a low boiling point enters the compressor under high pressure (about 12 atm) as it passes through the compressor, which is cooled in the condenser and becomes liquid. When the refrigerant is vaporized again in the condenser, one refrigeration cycle is completed.

FIG. 1 is a plan view schematically showing the inside of a hermetic compressor.

The compressor (10) has a structure in which a suction pipe (18) and a discharge pipe (19) of a refrigerant are connected to the outside of a closed casing (11) and a high pressure generating means is installed inside. In view of the operation of the high pressure generating means, the cam movement of the eccentric shaft 12 rotated by the motor causes the piston 14 in the cylinder 13 to reciprocate, and the valve assembly 15, So that the refrigerant is moved in one direction.

In this hermetic compressor, the refrigerant entering the suction pipe 18 flows into the cylinder 13 through the suction muffler 16 after being filled in the closed casing 11, and the refrigerant compressed in the cylinder 13 flows into the discharge muffler 17 to the condenser (not shown) in the discharge pipe 19. The suction muffler 16 and the discharge muffler 17 are used to reduce the compressor noise which occupies most of the refrigerator operating noise.

In order to maintain the airtightness of the refrigerant flowing into the cylinder 13 through the suction muffler 16 of the compressor 10 operated as described above, the O-ring 20 is connected to the cylinder 13 ) Hole, a conventional O-ring insertion method is shown in side sectional view in FIG.

The O-ring 20 is preferably made of a rubber material having good heat resistance and oil resistance.

Rubber materials used in machinery are natural rubber, nitrile rubber, and neoprene. The characteristics of each are as follows.

(1) Natural rubber: Used for applications requiring good elasticity and low temperature characteristics. It is applied to the environment where it does not come into direct sunlight, oil, medicine and so on.

(2) Nitrile rubber: It is applied to places requiring good oil resistance and heat resistance.

(3) Neoplan: It is applied to places where weather resistance and heat resistance are required and some oil resistance is required.

Since the cylinder 13 of the compressor to which the present invention is applied is influenced by refrigerant or hydraulic fluid as a lubricant and the temperature is relatively high due to the compression of the refrigerant, nitrile rubber or neoprene is suitable among the above materials. Therefore, it is preferable to use an O-ring 20 made of nitrile rubber or neoprene rubber as the O-ring 34. [

A conventional method of inserting an O-ring 20 made of such a material is as follows. First, an O-ring 20 is placed on a cylinder 13, 20) is inserted. However, in such a conventional insertion method, when the O-ring 20 is inserted, the O-ring 20 is damaged and is not collapsed or inserted at one time, so that the O-ring 20 is released from its insertion position and the airtightness of the refrigerant and the lubricity of the lubricant are not maintained The refrigerant newly introduced into the cylinder is not sufficiently charged and the compression ratio is also lowered, which affects the compression performance (or compressive force) as well as the operation time is prolonged.

According to an aspect of the present invention, there is provided a hermetically sealed compressor in which a refrigerant of a refrigerator is circulated through a compressor, a compressor cylinder for inserting the O-ring, which maintains the airtightness of the refrigerant introduced into the cylinder through the suction muffler, O-ring inserter.

1 is a plan view schematically showing the inside of a hermetic compressor;

FIG. 2 is a side sectional view showing the insertion of an O-ring into a cylinder in the related art. FIG.

FIG. 3 is a side sectional view showing the insertion of an O-ring into a cylinder according to the present invention. FIG.

DESCRIPTION OF THE REFERENCE NUMERALS

10: compressor 11: sealed case

12: eccentric shaft 13: cylinder

13a: inclined portion 13b: O-ring seat portion

13c: refrigerant penetration part 14: piston

15: valve assembly 16: suction muffler

17: discharge muffler 18: suction pipe

19: Discharge pipe 20: O-ring

21: Rod 30: O-ring inserter

31: guide portion 33: jig

35: Axis 35a: Handle

37: Handle

In order to achieve the above object, the present invention provides an inserter for inserting an O-ring into a cylinder for maintaining airtightness of a refrigerant flowing into a cylinder through a suction muffler, the inserter comprising: a handle formed in a shape of a one- Axis; A jig which is formed at the tip of the shaft with a margin in the same shape as the inclined portion of the cylinder and which aligns and supports the O-ring; And a guide portion extending in the longitudinal direction of the shaft in front of the jig and formed to have the same diameter as the inner diameter of the O-ring, so that the O-ring is stably inserted into the O-ring seating portion of the cylinder. to provide.

Meanwhile, the jig of the present invention is preferably formed of a rubber material so that the O-ring is not affected by damage or the like.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a side sectional view showing the O-ring insertion by the present invention.

The present invention is applied to a compressor (10) in which an O-ring (20) is inserted in a cylinder (13) to maintain the airtightness of a refrigerant flowing into a cylinder (13) through a suction muffler (16).

The O-ring inserter 30 of the present invention includes a shaft 35 formed in the shape of a one-piece rod and provided with a handle 37 at one end thereof, a cylinder 13 provided at the tip of the shaft 35, The jig 33 and the jig 33 for aligning and supporting the O-ring 20 are formed so as to be easily detached after the insertion of the O-ring 20 with a margin in the same shape as the inclined portion 13a of the O- And a guide portion 31 extending in the longitudinal direction of the shaft 35 and having the same diameter as the inner diameter of the O-ring 20.

At this time, the jig 33 is preferably made of a rubber material so that the O-ring 20 is not damaged by the pressing of the inserter 30 when the O-ring 20 is inserted.

The operation of the O-ring inserter 30 according to the present invention will now be described.

First, the O-ring 20 is disposed in a fixture 33 formed of a rubber material as described above which supports and aligns the O-ring 20 differently from the conventional method. After the O-ring 20 is disposed in the fixture 33, the O-ring 20 is held by the handle 35a provided at one end of the shaft 35 formed in the shape of a one- The guide portion 31 is formed to have the same diameter as the inner diameter of the O-ring 20 while being extended in the longitudinal direction of the shaft 35 by the guide portions 13c and 13c.

By inserting the guide portion 31 into the coolant penetration portion 13c, the O-ring 20 disposed in the fixture 33 is stably inserted and fixed into the O-ring 20 seat portion 13b of the cylinder 13 at once do. At this time, since the jig 33 for aligning and supporting the O-ring 20 is formed of a rubber material, even if the O-ring 20 is pressurized, no damage is externally applied to the O-ring 20, When the inserter 30 is disengaged from the cylinder 13 after the insertion is completed, the jig 33 formed at the tip of the shaft 35 has the same shape as the inclined portion 13a of the cylinder 13 The insertion of the inserter 30 can be further facilitated without any influence on the inserted and fixed O-ring 20, since it is formed with a margin.

As described above, in the hermetic compressor cylinder O-ring inserter of the present invention, an O-ring for maintaining the airtightness of the refrigerant flowing into the cylinder through the suction muffler in the hermetic compressor connected to the pipe through which the refrigerant of the refrigerator circulates It is possible to improve the efficiency and compression performance of the compressor as well as the productivity of the compressor by reducing the number of workings, as well as the airtightness of the refrigerant and the oil tightness of the lubricant.

Although the present invention has been shown and described with respect to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as set forth in the following claims Those skilled in the art will readily know what is known in the art.

Claims (2)

An inserter for inserting an O-ring (20) for maintaining airtightness of a refrigerant flowing into a cylinder (13) through a suction muffler (16) into the cylinder (13) A shaft 35 having a knob 35a at one end thereof; A jig 33 which is formed at the tip of the shaft 35 with the same shape as that of the inclined portion 13a of the cylinder 13 and which aligns and supports the O-ring 20; And an O-ring (20) extending in the longitudinal direction of the shaft (35) in front of the jig (35) and having the same diameter as the inner diameter of the O-ring (20) , And a guide portion (31) for stably inserting the O-ring (20) into the portion (13b). The compressor cylinder O-ring inserter according to claim 1, wherein the jig (33) is formed of a rubber material so that the O-ring (20) is free from damage or the like.