RU2546207C2 - Method of assembling two-compartment refrigerator - Google Patents

Abstract

FIELD: personal use articles.

SUBSTANCE: assembly of a two-compartment refrigerator comprises fastening of a tubular tube-coil evaporator to the rear wall of a refrigerating compartment, drawing the outlet tube of the evaporator and the capillary tube through a hole in a plug inside the freezing compartment. The outlet tube of the evaporator and the capillary tube are placed in the technology channel which is located in the freezing compartment, and at first the capillary tube is placed, and then the evaporator tube. The tubes (capillary and evaporator) are fixed securely in the technology channel from falling by lateral protrusions placed relative to each other in a checkerboard pattern, the space between the walls of the refrigerating and freezing compartments and the inner walls of the refrigerator housing is filled with a heat-insulation material.

EFFECT: use of the present invention provides simplifying of the assembly and reduction of labour intensity.

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Description

The invention relates to refrigeration, in particular to methods for assembling two-compartment refrigerators with two evaporators, one of which is intended for a refrigeration chamber, the other for a freezer.

A known method of assembling a two-chamber refrigerator, including fixing the tubular coil evaporator of the refrigerating chamber with the outlet of the evaporator tube and capillary tube having temporary process plugs, through the plug hole in the technological channel of the freezer, securing the evaporator and capillary tube in the channel, filling the space between the walls of the refrigerating and freezing chambers and the inner walls of the refrigerator case with thermally insulating material (see patent RU 121911, IPC F25D 11/02, 2012).

The specified method for assembling a two-chamber refrigerator was implemented when assembling a two-chamber refrigerator POZIS - Mir - 149-5 (see E-mail: pozis@pozis.ru. "Two-chamber refrigerator POZIS (POZIS) - 149-5), shown in Fig. 1 - general sectional view; figure 2 is the same, view a in figure 1; Fig 3 is a view of B in Fig 1; figure 4 - section bb in figure 3; figure 5 presents a diagram of the installation for filling the inter-wall space between the inner chambers and the refrigerator body with insulating material.

The assembly of the two-chamber refrigerator according to the above method is illustrated by the description of the design of the refrigerator.

The two-chamber refrigerator contains a housing 1, a refrigerator 2 and a freezer 3 chambers, a coil tube evaporator 4 of the refrigerator 2, a sheet-tube evaporator 5 of the freezer 3, made in the form of a whatnot, a capillary tube 6. On the inner wall of the freezer 3 there is a technological channel 7 for placement in therein the outlet tube 8 of the evaporator 4 and the capillary tube 6 exiting from the rear wall of the freezing chamber 3 through the opening 9 of the plug 10, the tubes 6 and 8 are closed with temporary technological plugs 11 and 12 (FIG. 1 and FIG. 2).

Mentioned tubes before filling the inter-wall space with thermo-insulating material 13 between the walls of the refrigeration 2 and freezer 3 chambers and the inner walls of the housing 1 are fixed in the technological channel 7 with adhesive tape pre-cut into segments 14 on a defatted surface near the channel surface of the freezer 5 (Fig. 3 and 4). Filling the inter-wall space is performed with fixing the refrigeration and freezer chambers on the punch 15 (figure 5).

The disadvantage of this method is the complexity of the preparatory operations for the installation of tubes 6 and 8 and their unreliability of fastening in the technological channel 7, which (tubes) are not securely fastened by segments 14 of the adhesive tape, and when putting the refrigeration 2 and freezing 3 chambers on the punch 15, the tubes 6 can be displaced and 8 in channel 7 and dropping them out of channel 7, which, when filling (pouring with polyurethane foam), with heat-insulating material 13 of the inter-wall space, leads to wrinkling of pipes and damage to the internal cabinets.

The technical result of the claimed invention is to simplify assembly technology while ensuring manufacturability and reducing labor intensity.

The technical result is achieved by the fact that in the method of assembling a two-chamber refrigerator, including fixing the tubular coil evaporator of the refrigerating chamber with the outlet of the evaporator tube and capillary tube having temporary process plugs, through the plug hole in the technological channel of the freezer, fixing in the channel of the evaporator and capillary tubes, filling the space between the walls of the refrigerator and freezer and the inner walls of the refrigerator body with insulating material, in contrast e from a known technical solution, first, a capillary tube is laid in the channel, and then an evaporator tube, and their fastening in the said channel of the freezer is carried out by means of side protrusions staggered relative to each other.

The features of the invention meet the requirement of clause 10.7.4.3 (8) of the Rules:

- "first, a capillary tube is laid in the channel, then the evaporator tube, and their fastening in the said channel of the freezer is carried out by means of side protrusions staggered relative to each other";

- the presence of an action or set of actions and the procedure for performing actions in time (first, a capillary tube is laid, then the evaporator tube);

- the conditions for the implementation of actions, devices (while fixing them in the aforementioned channel of the freezer is carried out by means of side protrusions staggered relative to each other).

As a result of the analysis of the prior art for the same purpose of the claimed method, technical solutions that match the features of the formula of the proposed invention, in the aggregate of essential features were not identified (Article 1350 (2) of the Code).

The combination of features of the claims allows to achieve a technical result - simplification of assembly technology while ensuring manufacturability and reducing labor intensity, i.e. the signs are in a causal relationship with the indicated result (clause 10.7.4.3. of the Rules) and are significant, which allows us to conclude that the technical solution meets the patentability level of “novelty”, since no means (device, method) were found from the prior art the same purpose as the proposed invention, which (the technical solution) is inherent in all the essential features given in the independent claim (paragraph 24.5.2 of the Rules).

In accordance with paragraph 24.5.3 of the Regulations, an audit of the inventive step has been carried out:

- the closest analogue has been determined - patent 121911;

- identified signs that the claimed invention differs from analogue - the sign "first, a capillary tube is laid in the channel, then the evaporator tube, while fixing them in the said channel of the freezer is carried out by means of side protrusions staggered relative to each other";

- from the prior art, solutions having signs that match the distinctive features of the proposed invention, not identified.

Therefore, the claimed technical solution meets the condition of patentability "inventive step".

Figure 6 shows a two-chamber refrigerator in which the assembly method, a General view, in section; Fig.7 is the same, view A in Fig.6; in Fig.8 is a view of B in Fig.6; figure 9 is a section bb in Fig; figure 10 - node I in figure 9; figure 11 presents the installation diagram for filling the inter-wall space between the inner chambers and the refrigerator body with insulating material.

The assembly of a two-chamber refrigerator according to the proposed method is illustrated by a description of the design of the refrigerator.

The two-compartment refrigerator contains a housing 1, a refrigerator 2 and a freezer 3 chambers, a tubular coil evaporator 4 of the refrigerator 2, a sheet-tube evaporator 5 of the refrigerator 3, made in the form of a whatnot, a capillary tube 6, on the inner wall of the freezer 3 there is a technological channel 7 for placement in therein the outlet tube 8 of the evaporator 4 and the capillary tube 6 exiting from the rear wall of the freezer 3 through the opening 9 of the plug 10, the tubes 6 and 8 are closed by temporary process plugs 11 and 12 (Fig.6 and Fig.7).

Said tubes before filling the inter-wall space with thermo-insulating material 13 between the walls of the refrigeration 2 and freezer 3 chambers and the inner walls of the housing 1 are fixed in the channel 7, in which side protrusions 14 are arranged, staggered relative to each other (Fig. 8 and Fig. 10) .

The method is as follows.

When assembling a two-chamber refrigerator, the tubular coil evaporator 4 is fixed to the rear wall of the refrigeration chamber 2, then the outlet tube 8 of the evaporator 4 and the capillary tube 6 are pulled through the opening 9 of the plug 10 into the inside of the freezer 3. The tubes 6 and 8 are laid in the technological channel 7, while first, the capillary tube 6 is laid, and then the evaporator 4 tube 8. The tubes 6 and 8 are securely fixed in the channel 7 from falling out by means of side protrusions 14, staggered relative to each other.

The two-chamber refrigerator is ready for the operation “filling with polyurethane foam” - thermal insulation material 13 of the inter-wall space between the walls of the chambers 2 and 3 and the inner walls of the housing 1. For this, the chambers 2 and 3 are placed in the refrigerator’s housing 1, then a punch 15 is inserted into the chamber cavities and the interwall is filled spaces with thermal insulation material 13.

Then, temporary technological plugs 11 and 12 are dismantled and technological connections, for example by welding or soldering, are connected to the ends of the mentioned tubes, the evaporator tube 5 of the freezer 3 and the capillary tube (not shown).

The two-compartment refrigerator is ready for further assembly.

The invention is industrially applicable.

Confirmation is the fact of the development of technological and design documentation for the manufacture of a two-chamber refrigerator at JSC Production Association Sergo Plant.

Claims (1)

A method of assembling a two-chamber refrigerator, including fixing a tubular coil evaporator of a refrigerating chamber with an outlet of an evaporator tube and a capillary tube having temporary technological plugs through a plug hole in the technological channel of the freezer, securing the evaporator and capillary tubes in a channel, filling the space between the walls of the refrigerating and freezing chambers and the inner walls of the refrigerator body with thermo-insulating material, characterized in that the capill is first placed in the channel a polar tube, and then an evaporator tube, and their fastening in the aforementioned channel of the freezer is carried out by means of lateral protrusions staggered relative to each other.

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