KR200149017Y1 - Heat radiating structure of close type compressor cylinder - Google Patents

Abstract

The present invention relates to a heat dissipation structure of a hermetic compressor cylinder connected to a pipe through which a refrigerant of a refrigerator is circulated.

The present invention provides a compressor in which a valve assembly (15) consisting of a valve plate (21), a valve (22), a packing, and the like is hermetically coupled between a cylinder (13) and a discharge muffler (17): the valve assembly (15). ) And a through hole 23a is formed on the cylinder 13 at a position where the head of the rivet 24 used to assemble the valve 22 is in contact.

Accordingly, the present invention has the effect of increasing the amount of heat dissipation by improving the groove for accommodating the rivets that bind the valve assembly and the cylinder in the hermetic compressor connected to the pipe through which the refrigerant of the refrigerator is circulated.

Description

Heat dissipation structure of hermetic compressor cylinder

The present invention relates to a compressor used in a refrigerator, and more particularly, to a sealed compressor cylinder that increases heat dissipation by improving the assembly structure of a valve assembly and a cylinder in a hermetic compressor connected to a pipe through which a refrigerant of a refrigerator is circulated. It relates to a heat radiation structure of.

The compressor of the refrigerator generally has a means for sucking and discharging the refrigerant in the sealed case and is used as a means for converting rotational force by electrical energy into mechanical energy of reciprocating motion.

The refrigerant having a low boiling point passes through the compressor to a high pressure of about 12 atmospheres, which is cooled in the condenser to become a liquid state and then vaporized in the cooler to complete one refrigeration cycle.

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

The compressor 10 has a structure in which the suction pipe 18 and the discharge pipe 19 of the refrigerant are bonded to the outside of the sealed case 11 and the high pressure generating means is mounted therein. In the operation of the high pressure generating means, the cam motion of the shaft 12 rotated by the motor reciprocates the piston 14 in the cylinder 13, and the valve assembly 15 is caused by the pressure difference between both sides formed at this time. It is passively opened and closed to move the refrigerant in one direction.

In the hermetic compressor, the refrigerant introduced into the suction pipe 18 is filled in the sealed case 11 and then introduced into the cylinder 13 through the suction muffler 16, and the refrigerant compressed in the cylinder 13 discharges the muffler ( 17 is sent from the discharge pipe 19 to a condenser (not shown).

2, the valve assembly 15 includes a valve plate 21 having an inlet and an outlet, a valve 22 mounted between the cylinder 13 and the valve plate 21, a valve 22 and It is composed of a packing (not shown) mounted between the cylinders 13 and a packing (not shown) mounted between the valve plate 21 and the discharge muffler 17.

At this time, the valve 22 is joined to the valve assembly 15 by a rivet 24, the recess 13a is formed in two places on the front surface of the cylinder 13 to accommodate the head of the rivet 24. This groove 13a is utilized only for the purpose of maintaining airtightness between the valve 22 and the cylinder 13.

Therefore, the present invention provides a heat dissipation structure of a hermetic compressor cylinder that increases heat dissipation by improving a groove for accommodating a rivet connecting a valve assembly and a cylinder in a hermetic compressor connected to a pipe through which a refrigerant of a refrigerator is circulated. The purpose.

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

2 is a configuration diagram showing a cylinder according to the present invention in a partial cross section.

* Explanation of symbols for main parts of the drawings

10 compressor 11 sealed case

12 shaft 13 cylinder (conventional)

13a: groove 14: piston

15 valve assembly 16 suction muffler

17 discharge muffler 18 suction pipe

19: discharge pipe 21: valve plate

22: valve 23: cylinder (this invention)

23a: through hole 24: rivet

A: Center ball B: Side ball

In order to achieve the above object, the present invention provides a compressor in which a valve assembly (15) consisting of a valve plate (21), a valve (22), a packing, and the like is hermetically coupled between a cylinder (13) and a discharge muffler (17). : A through-hole 23a is formed on the cylinder 13 at a position where the head of the rivet 24 used for assembling the valve assembly 15 and the valve 22 contacts. Provide a heat dissipation structure.

At this time, the through hole 23a further forms a spiral on its inner surface to increase the contact area with air.

EXAMPLE

Hereinafter, with reference to the accompanying Figure 2 will be described a preferred embodiment of the present invention.

2 is a block diagram showing the cylinder according to the present invention in a partial cross section. Unquoted references refer to FIG.

The present invention is applied to a compressor in which a valve assembly (15) composed of a valve plate (21), a valve (22), a packing, and the like is hermetically coupled between a cylinder (13) and a discharge muffler (17). In (13), the main point is to replace the cylinder 23 having improved heat dissipation while maintaining the airtightness of the valve plate 21 and the valve 22.

In the conventional compressor 10 (FIG. 1), the cylinder 13 includes a central hole A into which the piston 14 is inserted, a side hole B into which the suction muffler 16 is inserted, female screws for fastening bolts, and the like. In addition, the groove 13a is drilled to a predetermined depth (for example, about 3mm). The recess 13a is accommodated so that the head of the rivet 24 joining the valve plate 21 and the valve 22 does not interfere.

In this case, according to the present invention, a through hole 23a is formed on the cylinder 13 at a position where the head of the rivet 24 used to assemble the valve assembly 15 and the valve 22 contacts.

The through hole 23a is formed in the same position (for example, about 5 mm) in the same position as the conventional groove 13a. Since the rivets 24 are adjacent to the passage through which the compressed high-temperature refrigerant passes, the heat transfer is a large portion, so that the heat dissipation is performed through the through holes 23a.

The through hole 23a may not be completely penetrated. As shown in FIG. 1, the through-holes 23a formed in two places can weaken the mechanical strength of the cylinder 13, so that the diameter and depth thereof are appropriately adjusted. That is, it is also possible to allow the through holes 23a on the left and right sides to have different depths.

At this time, the through hole 23a further forms a spiral on its inner surface to increase the contact area with air.

The spiral is advantageously formed over the entire length of the through hole 23a in terms of heat dissipation, but is preferably formed over an appropriate length in consideration of the mechanical strength of the cylinder 13.

The effective diameter of the spiral can also be made smaller than the diameter of the through hole 23a, because even in this case, the difference in the heat dissipation area can be reduced, and the weakening of the mechanical strength can be alleviated.

When the rivet 24 is received by the through-hole 23a as described above, heat dissipation through the hot part of the cylinder 13 and the rivet 24 is maintained while the airtightness is maintained at the contact surface between the valve plate 21 and the valve 22. Is increased. In addition, when the operating temperature is lowered due to the heat dissipation of the cylinder 13, it may contribute to the improvement of the compression pressure of the refrigerant and the efficiency of the compressor.

As described through the above embodiments, the heat dissipation structure of the hermetic compressor cylinder of the present invention improves the groove for accommodating the rivets for binding the valve assembly and the cylinder in the hermetic compressor connected to the pipe through which the refrigerant of the refrigerator is circulated. Has the effect of increasing.

Although the present invention has been illustrated and described with reference to certain preferred embodiments, the present invention may be variously modified and changed without departing from the spirit or the field of the present invention provided by the following utility model registration claims. It will be readily apparent to one of ordinary skill in the art that it can be used.

Claims (2)

In a compressor in which a valve assembly (15) consisting of a valve plate (21), a valve (22), a packing, and the like is hermetically coupled between a cylinder (13) and a discharge muffler (17): the valve assembly (15) and the valve A heat dissipation structure of a hermetic compressor cylinder, characterized in that a through hole (23a) is formed on the cylinder (13) at a position where the head of the rivet (24) used for assembly of the (22) is in contact. The heat dissipation structure of a hermetic compressor cylinder according to claim 1, wherein the through hole (23a) further forms a spiral on its inner surface to increase a contact area with air.