KR100439326B1 - Refrigerator - Google Patents

Abstract

The present invention relates to a refrigerator, wherein the two suction pipes 28 and 33 for a refrigerator compartment and a freezer compartment are formed by bending in an inverted U-shape, and an intake pipe 28 positioned above the suction pipe 28 positioned below the suction pipe. The outside of 33) allows the piping spaces to be made smaller and to avoid them from interfering with each other. In the case where the refrigerator compartment cooler and the freezer compartment cooler are connected in parallel, the refrigerator compartment and the freezer compartment It is characterized in that the piping of the two suction pipes can be performed in a limited space without interfering with each other.

Description

Refrigerator {REFRIGERATOR}

The present invention relates to a refrigerator in which a piping structure of a suction pipe is improved in a configuration in which coolers are connected in parallel.

Conventionally, the refrigeration cycle shown in FIG. 8 is generally used in the refrigerator. In the refrigerating cycle, the inlet 5a of the switching valve 5, which consists of the delivery pipe 2, the condenser 3, the dryer 4, and the three-way valve, is sequentially connected from the outlet 1a of the compressor 1, From one outlet 5b of the switching valve 5, the refrigerating chamber expansion tube 6, the refrigerating chamber cooler 7, the connecting pipe 8, the freezing chamber cooler 9, the accumulator 10, the suction pipe 11 is connected in order, and the suction pipe 11 is connected to the suction port 1b of the compressor 1. In addition, from the other outlet 5c of the selector valve 5, a freezing chamber expansion tube 12 is connected in parallel with the refrigerating chamber expansion tube 6 and the refrigerating chamber cooler 7.

FIG. 9 illustrates a piping structure of a refrigerator using the conventional refrigeration cycle, and connecting pipes from the rear end to the lower end of the inner box 14 installed inside the outer box 13 forming the outer portion of the refrigerator. 8) is piped, and a suction pipe 11 formed by bending in an inverted U shape upward and downward from a lower position than the connecting pipe 8 is piped.

Therefore, in this case, although not shown, the refrigerating chamber cooler 7 is disposed inside the inner box 14 at the stop, and one end (upper end) of the connecting pipe 8 is connected thereto. In addition, the freezer compartment cooler 9 is arranged inside the inner box 14 at the lower end, and the other end (lower end) of the connecting pipe 8 is connected thereto, and one end of the suction pipe 11 is connected to the accumulator. It is connected via (10). In addition, the accumulator 10 is arrange | positioned inside the inner box 14, and is not shown in figure.

In addition, a machine room 15 is formed below the inner box 14, and one end of the delivery pipe 2 is connected to the discharge port 1a of the compressor 1 arranged in the machine room 15, and the suction port 1b is connected. ) Is connected to the other end of the suction pipe 11.

In the case of the conventional one, the refrigerator compartment cooler 7 and the freezer compartment cooler 9 are connected in series, and therefore, when the refrigerator compartment cooler 7 and the freezer compartment cooler 9 are cooled, the refrigerator compartment cooler The influence of the temperature of the refrigerant from (7) has an effect on the freezer compartment cooler 9, and the freezer compartment cooler 9 cannot be cooled at the optimum evaporation temperature. Further, even when only the refrigerator compartment cooler 7 needs to be cooled, the refrigerant from the refrigerator compartment cooler 7 flows into the freezer compartment cooler 9 to cool the freezer compartment 9, thereby cooling only the refrigerator compartment cooler 7. I could not.

On the other hand, as shown in FIG. 10, what connected the refrigerator compartment cooler 7 and the freezer compartment cooler 9 in parallel is provided. Specifically, the refrigerating chamber expansion pipe 6, the refrigerating chamber cooler 7, and the refrigerating chamber suction pipe 16 are sequentially connected from one outlet 5b of the switching valve 5. In addition, from the other outlet 5c of the selector valve 5, a freezing chamber expansion tube 12, a freezing chamber cooler 9, an accumulator 10, a non-return valve 17, a freezing chamber suction pipe 18. Are connected in turn, and the freezing chamber suction pipe 18 and the refrigerating chamber suction pipe 16 are connected to the connecting pipe 19, and the connecting pipe 19 is connected to the suction port 1b of the compressor 1. Connected.

According to this, when the refrigerator compartment cooler 7 and the freezer compartment cooler 9 are connected in parallel, when cooling the refrigerator compartment cooler 7 and the freezer compartment cooler 9, it came out from the refrigerator compartment cooler 7 The influence of the temperature of the refrigerant does not affect the freezer cooler 9, and the freezer cooler 9 can be cooled at an optimum evaporation temperature. When only the refrigerator compartment cooler 7 needs to be cooled, the refrigerant is introduced only into the refrigerator compartment cooler 7, and when only the freezer compartment 9 needs to be cooled, the refrigerant is introduced only into the freezer compartment cooler 9 so as to cool them. 7) and the freezer cooler 9 can be cooled separately.

However, this requires two suction pipes, that is, a suction pipe 16 for a refrigerating chamber and two suction pipes 18 for a freezing chamber, and it is necessary to carry out the piping of these two suction pipes in a limited space without interfering with each other. In addition, for a connection to the cooler of those suction pipes, a structure in which it is easily inserted into the inner box and assembled is desired.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and therefore, the object of the present invention is to connect the refrigerator compartment cooler and the refrigerator compartment cooler in parallel. Firstly, the two suction pipes for the refrigerator compartment and the freezer compartment interfere with each other in a limited space. The present invention provides a refrigerator which can be implemented without a second, and secondly, a refrigerator which can be easily assembled by assembling a connection portion to a cooler of the suction pipe into an inner box.

1 is a rear side perspective view of a state in which a rear plate of the refrigerator is removed (before the insulation is charged), showing an embodiment of the present invention;

2 is a schematic configuration diagram of a refrigeration cycle;

3 is a partially enlarged perspective view of a suction pipe for a refrigerating compartment,

4 is an exploded perspective view of an inner box and a refrigerating chamber suction pipe,

5 is a cross sectional view of an assembled state of a pipe and a suction pipe for a refrigerating chamber;

6 is a piping diagram of a suction pipe showing a reference example;

7 is a view corresponding to FIG. 6 showing another reference example;

8 is a diagram corresponding to FIG. 2 showing a conventional example;

9 corresponds to FIG. 1 and

Fig. 10 is a diagram corresponding to Fig. 2 showing another conventional example.

* Explanation of symbols for the main parts of the drawings

21: Compressor 27: Refrigerator for Refrigerator

28: suction pipe for refrigerating chamber 30: freezer for freezer

33: suction pipe for freezer 37: piping

38: first bend 39: second bend

40: slope 41: insertion hole

In order to achieve the first object, the refrigerator of the present invention includes a refrigerator compartment cooler and a refrigerator compartment cooler, and has a refrigerator compartment suction pipe and a refrigerator compartment suction pipe connected to the compressors in parallel and connected to the compressor from the respective refrigerators. It is characterized in that both suction pipes are formed by bending in an inverted U shape, and the suction pipes located on the upper side thereof are disposed outside the suction pipes located on the lower side.

According to this configuration, the inlet pipe for the refrigerating compartment and the inlet pipe for the freezer compartment are bent in an inverted U-shape so that the piping space can be made smaller, and the inlet pipe located on the upper side is disposed outside the intake pipe located on the lower side. This can be avoided from interfering with each other.

Further, in order to achieve the second object, the refrigerator of the present invention has a refrigerator compartment cooler and a refrigerator compartment cooler, and has a refrigerator compartment suction pipe and a refrigerator compartment suction pipe connected to these compressors in parallel and connected to the compressor from each of the refrigerators. Wherein at least one of the suction pipes is bent into a shape having a first bent portion bent forward from the rear of the pipe portion, and a second bent portion laterally bent from the tip thereof. The inlet of the pipe has a slope in the lateral direction opposite to the bending direction of the second bend, and the inlet has an insertion hole for inserting the inlet of the intake pipe. It features.

According to this, the connection part to the cooler of at least one of the suction pipe for a refrigerating chamber and the suction pipe for a freezer compartment can be easily inserted by inserting it diagonally inwardly from the insertion hole of a piping part, and a suction pipe can be inserted next to a connection part. It is good to make it face to face.

EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment of this invention is described with reference to FIGS.

First, FIG. 2 shows a refrigeration cycle for use in the refrigerator of this embodiment. In this refrigeration cycle, the inlet 25a of the switching valve 25 which consists of the delivery pipe 22, the condenser 23, the dryer 24, and a 3-way valve is connected in order from the discharge port 21a of the compressor 21, The refrigerating chamber expansion pipe 26, the refrigerating chamber cooler 27, and the refrigerating chamber suction pipe 28 are sequentially connected from one outlet 25b of the selector valve 25.

In addition, from the other outlet 25c of the selector valve 25, the freezing chamber expansion tube 29, the freezing chamber cooler 30, the accumulator 31, the non-return valve 32, the freezing chamber suction pipe 33. Are connected in sequence, and the freezing chamber suction pipe 33 and the refrigerating chamber suction pipe 28 are connected to the connecting pipe 34, and the connecting pipe 34 is connected to the suction port 21b of the compressor 21. have.

That is, with respect to the refrigerating chamber expansion tube 26, the refrigerating chamber cooler 27 and the refrigerating chamber suction pipe 28, the freezing chamber expansion tube 29, the freezing chamber cooler 30, the accumulator 31, the non-return valve ( 32 and the freezing chamber suction pipe 33 are connected in parallel.

Next, FIG. 1 shows the piping structure of the refrigerator using the refrigeration cycle, and the rear part of the inner box 36 installed inside the outer box 35 forming the outer portion of the refrigerator is the pipe portion 37. have. The refrigerating chamber suction pipe 28 is previously bent in an inverted U shape extending upwardly and downwardly from the interruption portion of the piping portion 37 and piped to the piping portion 37. On the other hand, the freezing chamber suction pipe 33 is formed in advance by bending in an inverted U shape extending upward and downward from the lower end of the pipe portion 37 and piped to the pipe portion 37.

Therefore, although not shown in figure, the said refrigerator compartment cooler 27 is arrange | positioned inside the interruption | block part of the inner box 36, and the one end of the refrigerator compartment suction pipe 28 is connected to this. Moreover, the freezer compartment cooler 30 is arrange | positioned inside it at the lower end part of the inner box 36, and the one end part of the freezer compartment suction pipe 33 is connected to it. Therefore, one end of the refrigerating chamber suction pipe 28 functions as a connection portion of the refrigerating chamber suction pipe 28 to the refrigerating chamber cooler 27, and one end of the freezer compartment suction pipe 33 is connected to the freezer cooling unit 30. It functions as a connection part of the suction pipe 33 for a freezer compartment.

The suction pipe (in this case, the refrigerating chamber suction pipe 28) located above the suction pipe (in this case, the refrigerating chamber suction pipe 33) located below the suction pipe 28, 33. It is formed in a wide inverse U-shape, and it is arrange | positioned to the outer side of the suction pipe 33 for freezers (refrigerating chamber suction pipe 28).

In addition, the refrigerating chamber suction pipe 28 is connected to the refrigerating chamber expansion pipe 26, and the refrigerating chamber suction pipe 33 is connected to the freezing chamber expansion pipe 29. Therefore, both suction pipes 28 and 33 have a length of, for example, 2 [m] or more, and are each bent in an inverted U-shape as described above for heat exchange with the respective expansion pipes 26 and 29. .

In addition, the vicinity of one end which is a connection part of the refrigerating chamber suction pipe 28 with respect to the refrigerating chamber cooler 27 has the 1st curved part 38 and the said 2nd curved part 39 as shown in FIG. It is formed in a shape. Among these, the first bent part 38 is bent L-shaped from the rear to the front with respect to the pipe part 37, and the second bent part 39 is diagonally left downward from the tip of the first bent part 38 in the drawing. And bend laterally horizontally to the left.

However, a reinforcing plate 37a shown in FIG. 5 is provided at one end of the suction pipe 28 for the refrigerating compartment, at a portion corresponding to the interruption portion of the pipe portion 37, that is, the refrigerator 27 for the refrigerating compartment. In addition, the slopes 40 are formed on the side surfaces (in this case, the right direction) opposite to the bending direction of the second bent portion 39, and the slopes 40 are provided with the suction pipes 28 for the refrigerating chamber. An insertion hole 41 for inserting one end is formed.

Then, one end of the refrigerating chamber suction pipe 28 is inserted diagonally (in a direction substantially orthogonal to the slope 40) from the insertion hole 41 to the inside of the pipe portion 37 (in the inner box 36). And, the refrigerator pipe suction pipe 28 is in a state in which one end thereof faces to the side (see FIG. 5). 4 and 5, reference numeral 42 denotes a pipe fixture attached to one end of the suction pipe 28 for the refrigerating compartment, and a plurality of screws are provided at the periphery of the insertion hole 41 of the pipe section 37. By attaching by 43, one end of the suction pipe 28 for the refrigerating chamber after the attachment to the pipe portion 37 is fixed. In addition, after fixing, one end of the refrigerating chamber suction pipe 28 is connected to the refrigerating chamber cooler 27 in the inner box 36.

On the other hand, the one end of the freezing chamber suction pipe 33 is also inserted into and fixed in the inner box 36 from the insertion hole formed in the pipe portion 37, although not shown in detail, and to the freezer cooling machine 30. You are connected.

In addition, a machine chamber 44 shown in FIG. 1 is formed below the inner box 36, and one end of the discharge pipe 22 is provided at an outlet 21a of the compressor 21 disposed in the machine chamber 44. As shown in FIG. Is connected, and the connection pipe 34 is connected to the inlet port 21b.

Thus, in this structure, the refrigerating chamber suction pipe 28 connected to the refrigerating chamber cooler 27 and the freezing chamber cooler 30 in parallel, and connected to the compressor 21 from each of the coolers 27 and 30. And a freezing chamber suction pipe 33, wherein both suction pipes 28, 33 are formed by bending in an inverted U shape, and a cold storage suction pipe 28 located above is positioned below the suction pipe 28, 33, respectively. It is arrange | positioned outside the suction pipe 33 for freezers.

Among these, by forming both suction pipes 28 and 33 in inverted U-shape, each piping space in the piping part 37 can be made small. Moreover, the refrigerator compartment suction pipe 28 located above is arrange | positioned outward of the freezer compartment suction pipe 33 located below, and it can avoid that they mutually interfere.

6 and 7 show that the refrigerating chamber suction pipe 28 is disposed inside the freezing chamber suction pipe 33 as opposed to that of the present configuration. The practical suction pipe 28 needs to be additionally formed with a bent portion 45 (see FIG. 6), or a bent portion 46 (see FIG. 7), which leads to an increase in cost and furthermore, a suction pipe 28 for the refrigerating compartment. ) Is complicated to increase the difficulty of attachment. On the other hand, the thing of this structure does not need to be bent to the refrigerating chamber suction pipe 28, and it can make it low cost and can attach easily.

Moreover, the structure of this structure is the 1st bend part 38 which bent the front part of the one end part which is the connection part of the refrigerating chamber suction pipe 28 to the refrigerating chamber cooler 27 from the back of a piping part forward, and from the front end to the lateral side. It is bent into a shape having a bent second bent portion 39, and the pipe portion 37 is directed toward the side opposite to the bent direction of the second bent portion 39 with respect to one end of the suction pipe 28 for the refrigerating compartment. A slope portion 40 is provided, and an insertion hole 41 is formed in the slope portion 40 to insert one end of the suction pipe 28 for the refrigerating compartment.

Thereby, at the time of assembling the refrigerating chamber suction pipe 28 to the pipe part 37, one end of the refrigerating chamber suction pipe 28 can be easily inserted by inserting diagonally inward from the insertion hole 41, Moreover, what is necessary is just to make it the state which one end part faces to the side. In this way, the refrigerating chamber suction pipe 28 can be easily assembled to the piping 37.

In addition, about the arrangement | positioning of the refrigerating chamber suction pipe 28 and the freezing chamber suction pipe 33, in contrast to the structure of the said structure, the freezer compartment suction | cooler 30 is located above the refrigerating chamber cooler 27, and the freezer suction In the case where the pipe 33 is located above the refrigerating chamber suction pipe 28, the freezing chamber suction pipe 33 may be disposed outside the refrigerating chamber suction pipe 28.

Further, the first bent portion 38 and the second bent portion 39 may be formed in the shape of having one end portion of the refrigerating chamber suction pipe 28 instead of or simultaneously with the one end portion of the refrigerating chamber suction pipe 33. In addition, the slope part 40 and the insertion hole 41 which are formed in the piping part 37 so that it may face to the side opposite to the bending direction of the 2nd bend part 39 may also be used for the refrigerator compartment of the piping part 37. Instead of or at the same time as the part corresponding to the cooler 27, you may form in the part corresponding to the cooler 30 for freezers.

In addition, this invention is not limited only to the above-mentioned and shown in the figure, It can change suitably and implement in the range which does not deviate from the summary.

As described above, according to the refrigerator of the present invention, first, the piping for the refrigerating compartment and the freezing compartment, i.e., the two suction pipes, is carried out without interfering with each other in a limited space and causing no increase in cost, and without increasing the difficulty of attachment. can do.

According to the refrigerator of the present invention, a connection part to the cooler of at least one of the suction pipes for the refrigerating compartment and the freezing compartment can be easily inserted into the inner box, and the assembly can be improved.

Claims (2)

A refrigerator having a refrigerator for refrigerator and a refrigerator for freezer, and having the suction pipe for the refrigerator compartment and the suction pipe for the freezer compartment connected to the chillers in parallel and connected to the compressor from the respective chillers, The both suction pipes are formed by bending in an inverted U shape, The refrigerator characterized by the above-mentioned suction pipe located in the outer side of the suction pipe located in the lower side. In the refrigerating chamber chiller and the freezer compartment chiller, the chiller chamber suction pipe and the freezer compartment suction pipe which are connected in parallel and connected to the compressor from the respective chillers, Bent into a shape having a first bent portion bent forward from the rear of the pipe portion and a second bent portion laterally bent from the distal end thereof, in the vicinity of the connecting portion to the cooler of at least one of the suction pipes, The pipe part is provided with the slope part which faces to the side of a side opposite to the bending direction of the said 2nd bending part with respect to the connection part of the said suction pipe, And an insertion hole for inserting the connection portion of the suction pipe into the slope portion.