TWI719196B - refrigerator - Google Patents

Abstract

The refrigerator (1) of the embodiment uses a multi-flow condenser (12) for heat exchange in the refrigeration cycle (21). The multi-flow condenser (12) includes a flat tube (14) formed in a flat shape , And a plurality of flow paths through which the refrigerant flows are formed inside; and a header (13), which becomes the inlet or outlet of the refrigerant flowing to the flat tube (14).

Description

refrigerator

The embodiment of the present invention relates to a refrigerator.

The refrigerator includes a refrigeration cycle, which includes a compressor and a condenser. The compressor and condenser are installed in a so-called machine room, and because they generate heat during operation, they are cooled by a cooling fan. Furthermore, in Patent Document 1, for example, it has been proposed to efficiently cool the compressor, condenser, etc. in the machine room by designing the arrangement of the exhaust port. [Prior Art Document] [Patent Document]

[Patent Document 1] Japanese Patent Laid-Open No. 2014-238219

[Problems to be Solved by the Invention] Furthermore, in recent years, it has been desired to increase the volume of storage rooms such as refrigerating rooms. At this time, in order to achieve a high volume without increasing the size of the main body, the machine room has been relatively miniaturized. As a result, the large condenser cannot be installed in the machine room, and the following countermeasures must be taken, such as installing a heat dissipation pipe on the back side of the refrigerator to ensure the necessary heat dissipation. Therefore, it is possible to provide a refrigerator capable of increasing the volume of the storage compartment and ensuring the heat dissipation required for the refrigeration cycle. [Means to solve the problem]

The refrigerator of the embodiment uses a multiflow condenser for heat exchange in the refrigeration cycle. The multiflow condenser includes a flat tube formed in a flat shape, and a plurality of flows through which a refrigerant flows are formed inside. Road; and header (header), which becomes the inlet or outlet of the refrigerant flowing to the flat tube.

Hereinafter, the embodiment will be described with reference to FIGS. 1 to 21(a) to 21(d). As shown in FIG. 1, the main body 2 of the refrigerator 1 is formed in a substantially rectangular shape. The main body 2 includes a back plate 3, a left side plate 4, a right side plate 5, a top plate 6 and a bottom plate 7 (refer to FIG. 2), and the front surface is open. The opening of the front surface of the main body 2 is opened and closed by the door 10a (refer to FIG. 2). The back panel 3, the left side panel 4, the right side panel 5, the top panel 6 and the bottom panel 7 are omitted from the figure, for example, a vacuum insulation panel or foamed polyurethane, or a combination of the vacuum insulation panel and the hair The structure of foaming a polyurethane becomes a structure which insulates between the storage compartment 10 (refer FIG. 2) and the exterior of the refrigerator 1. As shown in FIG.

Hereinafter, in this specification, as shown in FIG. 1, the direction along the gravity when the refrigerator 1 is installed is referred to as the vertical direction, and the refrigerator 1 is viewed from the front from the left side plate 4 to the right side. The direction of the plate 5 is referred to as the left-right direction, and the direction from the door 10a toward the back plate 3 side is referred to as the front-rear direction and is described. A machine room 8 is provided in the lower part of the main body 2. In addition, the back plate 3, the left side plate 4, the right side plate 5, and the bottom plate 7 are formed with openings 9 communicating with the inside of the machine room 8 at positions corresponding to the machine room 8. When the cooling fan 20 (refer to FIG. 2) is activated, each opening 9 functions as an air inlet for sucking air from the outside into the machine room 8 or an air outlet for discharging air from the machine room 8 to the outside. . According to the position of the cooling fan 20 in the machine room 8, it is determined whether the opening 9 functions as an intake port or an exhaust port. Furthermore, the opening 9 may be a simple slit, may be processed into a louver shape, etc., and may be provided with a dust-proof filter or the like.

As shown in FIG. 2, the compressor 11, the condenser 12, the cooling fan 20, etc. are provided in the machine room 8. As shown in FIG. The compressor 11 and the condenser 12 constitute a refrigeration cycle 21 together with an evaporator (not shown). In this embodiment, an axial fan is used as the cooling fan 20. In the machine room 8, other components other than the compressor 11, the condenser 12, and the cooling fan 20 that are not shown in the figure are also installed. And, of course, a control unit is also provided in the main body 2, and this control unit controls the entire refrigerator 1 including the compressor 11, the condenser 12, the cooling fan 20, and the like.

In front of the machine room 8, for example, a storage room 10 such as a vegetable room is provided, and the storage room 10 is opened and closed by a pull-open door 10 a. In addition, above the machine room 8, for example, a storage room 10 such as a freezer compartment is provided, and the storage room 10 is opened and closed by a pull-open door 10 a. In addition, although the illustration is omitted, a storage room 10 such as a refrigerating room is provided above the main body 2 and the storage room 10 is opened and closed by, for example, a pivoting door 10a. Since the compressor 11 and the condenser 12 generate heat, the machine room 8 and each storage room 10 are separated by a heat-insulating partition wall 10b.

In this embodiment, a so-called multi-flow type condenser is used as the condenser 12 installed in the machine room 8. The details of the multi-flow condenser 12 will be described later, but it has a configuration in which, as shown in FIG. 3 and the like, the headers 13 are connected by flat tubes 14, and a plurality of streams are arranged in parallel in the flat tubes 14 road. Hereinafter, for convenience, the configuration described above is referred to as a parallel type. Furthermore, there is also a multi-flow type condenser 12 constructed as follows. As shown in FIG. 4 and the like, the headers 13 are connected by a single meandering flat pipe 14. Hereinafter, for convenience, the above-mentioned configuration is referred to as a serpentine type. Furthermore, fins 15 are provided between the flat tubes 14.

Next, the function of the above configuration will be explained. For example, according to FIG. 2, it can be imagined that in order to increase the storage capacity without increasing the size of the main body 2, that is, in order to increase the volume of the storage room 10, the machine room 8 needs to be relatively downsized. However, if the machine room 8 is reduced in size, the volume of the machine room 8 is reduced. Therefore, it is impossible to provide a large component capable of ensuring a sufficient heat dissipation amount. Therefore, in order to ensure the necessary heat dissipation, the following measures are taken, for example, a heat dissipation pipe is separately provided on the back side. In contrast, in this embodiment, a multi-flow condenser 12 is used. Even if the multi-flow condenser 12 is small, it has a large surface area. Therefore, first, sufficient heat dissipation can be ensured, and it can also be installed in the machine room 8 after miniaturization.

However, in the case where the condenser 12 is provided, there are a number of points to be noted. For example, as described above, other components are also provided in the machine room 8. Therefore, the arrangement location of the condenser 12 may be restricted by the position of other components, the position of the opening 9 and the like. Furthermore, especially in the case of the refrigerator 1, since the storage compartment 10, such as a refrigerating compartment or a freezing compartment, is provided, it is necessary to suppress the influence of heat generation on the storage compartment 10. Furthermore, in the actual manufacturing process, it is also necessary to consider the ease of connection with the piping 17 (see FIG. 5, etc.) described later.

That is, when the multi-flow condenser 12 is installed in the refrigerator 1, not only the condenser 12 needs to be small, but also the installation location or the installation direction of the condenser 12 needs to be creatively designed. Hereinafter, a plurality of structures of the condenser 12 (structure example A to structure example D) will be described first, and then an appropriate installation example (installation example A to installation example D) of the structure example A to structure example D will be described. .

<Structure example A: Parallel structure with refrigerant flowing in one direction>

3 to 5, the structure example A, which is a parallel type structure in which the refrigerant flows in one direction, will be described. Hereinafter, for convenience, the condenser 12 of the structural example A is referred to as a condenser 12A with the suffix "A" attached. In addition, each structure example mentioned later is also the same, but when each structure example is demonstrated in general, it demonstrates without adding a suffix.

As shown in FIG. 3, a plurality of flat tubes 14 are provided in parallel between the two cylindrical headers 13 of the condenser 12A. A plurality of flow paths are formed inside each flat tube 14, and each flow path communicates with each header 13. Therefore, the refrigerant flows in parallel in the flat tube 14. According to this structure, it is called a multi-flow type or a parallel flow type.

Then, the refrigerant that has flowed into one header 13 on the inlet side flows through the flat tube 14 and reaches the other header 13 on the outlet side. At this time, the radiating fin 15 is in contact with each flat tube 14, and therefore, the heat of each flat tube 14 is released. The radiating fin 15 is provided between the flat tubes 14 by forming a thin metal plate into a corrugated shape, for example. . Hereinafter, for convenience, the location where each flat tube 14 and the heat sink 15 are arranged is referred to as a main body portion 12a. The main body portion 12a can be regarded as a rectangular parallelepiped with a substantially thin outer edge as a whole.

Hereinafter, the width direction of the main body portion 12a, that is, the direction from one header 13 to the other header 13 in FIG. 3 is referred to as the X axis. In addition, the height direction of the main body portion 12a, that is, the extending direction of the cylindrical header 13 in FIG. 3 is referred to as the Y axis. In addition, the thickness direction of the main body portion 12a, that is, the directions orthogonal to the X axis and the Y axis, respectively, are referred to as the Z axis. Furthermore, in FIG. 3, the directions of the arrows indicating the X-axis, Y-axis, and Z-axis are set to the positive direction, and the positive direction is added with "+" based on the main body portion 12a, and the negative direction opposite to the positive direction is added to the positive direction. The direction is explained by adding "-".

Each header 13 is provided with a connecting pipe 16 respectively. The connecting pipe 16 is provided for connection with the pipe 17 (refer to FIG. 5) and is firmly connected to the header 13. On the other hand, the side connected to the pipe 17 is formed into a tube that can be bent or bendable, for example, and It is connected to the pipe 17 by, for example, brazing. Hereinafter, for convenience, the connecting pipe 16 on the refrigerant inlet side is referred to as an inlet-side connecting pipe 16a, and for convenience, the connecting pipe 16 on the refrigerant outlet side is referred to as an outlet-side connecting pipe 16b. In this case, the direction of the inlet-side connecting pipe 16a is substantially the X- direction, and the direction of the outlet-side connecting pipe 16b is substantially the X+ direction.

In the case of the condenser 12A as described above, as shown in the simplified diagram in FIG. 4, the refrigerant flowing in from the inlet-side connecting pipe 16a flows from the header 13 provided with the inlet-side connecting pipe 16a, as shown by arrow F, It flows to the other header 13 in each flat tube 14, and flows out from the outlet side connecting pipe 16b. That is, in the case of the condenser 12A, the refrigerant flows in one direction. At this time, the refrigerant becomes a gas when flowing into the inlet-side connecting pipe 16a, and is condensed by the condenser 12, so that it becomes a liquid when flowing out from the outlet-side connecting pipe 16b.

Therefore, for the condenser 12, the temperature of the header 13 on the inlet side is relatively increased, and the temperature of the header 13 on the outlet side is relatively lower. Furthermore, the temperature on the inlet side of the flat tube 14 is the highest, and the temperature gradually decreases as it approaches the outlet side. That is, including the header 13, the main body portion 12a of the condenser 12 has a temperature distribution.

In addition, without considering the restriction caused by the installation location or the installation direction, it is considered that the degree of freedom of the directions of the inlet-side connecting pipe 16a and the outlet-side connecting pipe 16b is high. Specifically, as shown by the solid and dashed lines in FIG. 5, the inlet-side connecting pipe 16a can be installed in various directions such as the X-direction, the Y+ direction, the Z+ direction, and the Z-direction with respect to the main body portion 12a. Similarly, the outlet-side connecting pipe 16b can be installed in various directions such as the X+ direction, the Y+ direction, the Z+ direction, and the Z- direction with respect to the main body portion 12a.

That is, the condenser 12 includes connecting pipes (inlet-side connecting pipe 16a, outlet-side connecting pipe 16b), and the connecting pipes (inlet-side connecting pipe 16a, outlet-side connecting pipe 16b) are formed from the main body portion 12a where the flat tube 14 is arranged. It has a protruding length and is connected to the external piping 17. In addition, the connecting pipes (the inlet-side connecting pipe 16 a and the outlet-side connecting pipe 16 b) may extend parallel to the flat tube 14, or may extend perpendicularly to the flat tube 14. In addition, the direction of the inlet-side connecting pipe 16a and the outlet-side connecting pipe 16b with respect to the flat tube 14 may be different, and the direction of protruding from the main body portion 12a may also be different. This is the same for the serpentine condenser 12 (refer to FIGS. 9 and 12) and the like described later.

In addition, although the illustration has been omitted, the inlet-side connecting pipe 16a and the outlet-side connecting pipe 16b may not be strictly orthogonal or parallel to the directions, that is, each axis, and may be slightly inclined, or may be greatly inclined with respect to each axis. . Furthermore, although the outlet-side connecting pipe 16b can be provided in the region R shown in FIG. 5, in this case, since the inlet and the outlet are close to each other, the refrigerant may not flow into all the flat tubes 14 evenly. In the case of the condenser 12A, it is desirable to install the inlet-side connecting pipe 16a and the outlet-side connecting pipe 16b at opposite corners as much as possible.

However, the pipe 17 connected to each connection pipe 16 is in the vicinity of the condenser 12 and corresponds to the direction of the connection pipe 16. Therefore, for example, as shown in FIG. 5, when the inlet side connecting pipe 16a is provided extending in the X- direction and the outlet side connecting pipe 16b is provided extending in the X+ direction, the piping 17 is connected from the X direction. Therefore, considering When the size including the pipe 17 is included, in the X direction, that is, in the width direction of the main body 12a, a certain amount of actual installation space required for installing the condenser 12A is required. Similarly, for example, when the inlet-side connecting pipe 16a is provided to extend in the Z+ direction, a certain amount of installation space is required in the Z direction, that is, in the thickness direction of the main body portion 12a. That is, the installation space is restricted according to the direction of each connection pipe 16.

<Structure example B: Parallel-type structure in which refrigerant flows in two directions> With reference to Figs. 6 to 8, structure example B, which is a parallel-type structure in which refrigerant flows in two directions, will be described. As shown in FIG. 6, the basic structure of the condenser 12B is the same as that of the condenser 12A, and a plurality of flat tubes 14 are provided in parallel between two cylindrical headers 13. A plurality of flow paths are formed inside each flat tube 14, and each flow path communicates with each header 13. Therefore, the refrigerant flows in parallel in the flat tube 14. Furthermore, fins 15 are provided between the flat tubes 14.

However, in the case of the condenser 12B, one header 13 is provided with both an inlet-side connecting pipe 16a and an outlet-side connecting pipe 16b, and there is provided between the inlet-side connecting pipe 16a and the outlet-side connecting pipe 16b. Sealing portion 13a. The sealing portion 13a seals the inside of the cylindrical header 13. That is, the sealing portion 13a divides the inside of one header 13 into two ranges. Furthermore, the sealing portion 13a makes the number of flat tubes 14 on the inlet side relatively large, and makes the number of flat tubes 14 on the outlet side relatively small. The reason is that the refrigerant is gaseous on the inlet side, so the volume is large, and condensed on the outlet side to become liquid, so the volume is reduced. In this way, efficiency can be improved.

In the case of the condenser 12B as described above, as shown in the simplified diagram in FIG. 7, the gaseous refrigerant flowing in from the inlet-side connecting pipe 16a is located closer to the inlet side than the sealed portion 13a, as indicated by the arrow F. After each flat tube 14 on the side of the connecting pipe 16a flows to the other header 13, it passes through the other header 13, and reverses in each flat tube 14 located on the outlet side connecting pipe 16b side of the sealed portion 13a. After flowing, it flows out from the outlet side connecting pipe 16b. That is, in the case of the condenser 12B, the refrigerant flows in two directions. Hereinafter, for convenience, the condenser 12 of this structure is referred to as a fold-back type.

In the case of the condenser 12B, the degree of freedom in the directions of the inlet-side connecting pipe 16a and the outlet-side connecting pipe 16b is also high, unless restrictions due to the installation location or installation direction are taken into consideration. Specifically, as shown by the solid line and the broken line in FIG. 8, the inlet-side connecting pipe 16a can be installed in various directions such as the X-direction, the Y+ direction, the Z+ direction, and the Z-direction with respect to the main body portion 12a. Similarly, the outlet-side connecting pipe 16b can be installed in various directions such as the X-direction, the Y-direction, the Z+ direction, and the Z-direction with respect to the main body portion 12a.

In the case of the condenser 12B, the piping 17 connected to each connection pipe 16 is also in the vicinity of the condenser 12 and corresponds to the direction of the connection pipe 16. Therefore, the installation space is limited according to the direction of each connection pipe 16. In addition, although the illustration is omitted, the inlet-side connecting pipe 16a and the outlet-side connecting pipe 16b may be slightly inclined, or may be greatly inclined with respect to each axis.

<Structural example C: a serpentine type and a structure in which the header is provided on the same side> Referring to Figs. 9 to 11, a serpentine type and a structure in which the header 13 is provided on the same side, that is, the inlet and outlet of the refrigerant The structure example C which is arrange|positioned on the same side with respect to the main body part 12a is demonstrated.

As shown in FIG. 9, between two small cylindrical headers 13 of the condenser 12C, a flat tube 14 is serpentinely provided. The flat tube 14 has a plurality of flow paths formed therein, and each flow path communicates with each header 13. That is, in the serpentine condenser 12C, one flat tube 14 is bent along the thickness direction to connect the inlet and the outlet. In this case, the refrigerant also flows in parallel in the flat tube 14. Furthermore, fins 15 are provided between the folded flat tubes 14. Furthermore, in the case of the condenser 12C, the header 13 on the inlet side and the header 13 on the outlet side are provided at the same position with respect to the main body portion 12a.

In the case of the condenser 12C as described above, as shown in the simplified diagram in FIG. 10, the gaseous refrigerant flowing in from the inlet-side connecting pipe 16a flows to the other set in the flat tube 14 as indicated by the arrow F. The pipe 13 flows out from the outlet-side connecting pipe 16b. Furthermore, in addition to the direction perpendicular to the flat tube 14 as shown in FIG. 9, the direction of the header 13 can also be considered a horizontal direction or a coaxial direction with the flat tube 14. However, in the case of the condenser 12C, due to The header 13 itself is small, so it is believed that the main cause of the space problem is the direction of the connecting pipe 16.

In the case of the condenser 12C, the degree of freedom in the directions of the inlet-side connecting pipe 16a and the outlet-side connecting pipe 16b is also high without considering the restriction caused by the installation location or the installation direction. Specifically, as shown by the solid and dashed lines in FIG. 11, the inlet-side connecting pipe 16a can be installed in various directions such as the Z+ direction, the X- direction, the Y+ direction, the Y- direction, and the Z- direction with respect to the main body portion 12a. . Similarly, the outlet-side connecting pipe 16b can be installed in various directions such as the Z+ direction, the X- direction, the Y+ direction, the Y- direction, and the Z- direction with respect to the main body portion 12a.

In the case of the condenser 12C, the piping 17 connected to each connection pipe 16 is also in the vicinity of the condenser 12 and corresponds to the direction of the connection pipe 16. Therefore, the installation space is limited according to the direction of each connection pipe 16. In addition, although the illustration is omitted, the inlet-side connecting pipe 16a and the outlet-side connecting pipe 16b may be slightly inclined, or may be greatly inclined with respect to each axis.

<Structural example C: a serpentine type and a structure where the header is installed on the diagonal side> Referring to FIG. 12, for a serpentine type and a structure where the header 13 is installed on the diagonal side, that is, the inlet and the outlet of the refrigerant are opposed to each other. The structure example D which is arrange|positioned on the diagonal line in the main body part 12a is demonstrated. As shown in FIG. 12, although the condenser 12D is substantially the same as the condenser 12C, the two cylindrical headers 13 are provided in the diagonal position with respect to the main body part 12a.

In the case of the condenser 12C, the degree of freedom in the directions of the inlet-side connecting pipe 16a and the outlet-side connecting pipe 16b is also high without considering the restriction caused by the installation location or the installation direction. Specifically, the inlet-side connecting pipe 16a can be installed in various directions such as the Z+ direction, the X- direction, the Y+ direction, the Y- direction, and the Z- direction with respect to the main body portion 12a. Similarly, the outlet-side connection pipe 16b can be installed in various directions such as the Z+ direction, the X+ direction, the Y+ direction, and the Z- direction with respect to the main body portion 12a.

In the case of the condenser 12D, the piping 17 connected to each connection pipe 16 is also in the vicinity of the condenser 12 and corresponds to the direction of the connection pipe 16. Therefore, the installation space is limited according to the direction of each connection pipe 16. In addition, although the illustration is omitted, the inlet-side connecting pipe 16a and the outlet-side connecting pipe 16b may be slightly inclined, or may be greatly inclined with respect to each axis.

In addition, there are also various installation directions of the condenser 12 shown in the structural example A to the structural example D. For example, in the case of the condenser 12A, as shown in Figure 13 (a), the height direction of the body portion 12a is set along the direction of gravity, that is, the header 13 is along the direction of gravity and the flat tube 14 is set The state of the surface level. In addition, the illustration of the connecting pipe 16 is omitted in FIGS. 13(a) to 13(d).

Moreover, as shown in FIG. 13( b ), a state where the width direction of the main body portion 12 a is set along the direction of gravity, that is, a state where the header 13 is horizontal to the installation surface and the flat tube 14 is along the direction of gravity can be considered. Moreover, as shown in FIG. 13(c), a state in which the thickness direction of the body portion 12a is set along the direction of gravity may be considered; or as shown in FIG. 13(d), the thickness direction of the body portion 12a is set obliquely with respect to the direction of gravity. The status and so on. In addition, although the illustration is omitted, it is also possible to consider a state where the header 13 is installed obliquely with respect to the direction of gravity (see FIG. 20).

<Installation example A> Hereinafter, the installation example A will be described with reference to FIGS. 14 and 15(a) to 15(d). FIG. 14 shows installation example A, and schematically shows a state in which the machine room 8 is viewed from above. In this installation example A, the condenser 12 is installed so that the main body part 12a and the storage room 10 in front of the machine room 8 may be substantially parallel. In this case, after the outside air is sucked in from the opening 9 provided in the bottom plate 7 to cool the condenser 12, the compressor 11 is cooled while being exhausted from the opening 9 provided in the left side plate 4.

First, as described above, the storage room 10 is provided in front of and above the machine room 8. Therefore, it is preferable that the heat released by the condenser 12 has little influence on the storage room 10. In this case, since the distance to the storage room 10 on the front side of the machine room 8 is the same, it is considered that the influence on the storage room 10 (see FIG. 2) on the upper side of the machine room 8 is considered.

Furthermore, as described above, the condenser 12 condenses the gaseous refrigerant into a liquid state, and therefore, it is preferable that the outlet-side connection pipe 16b is located below. Furthermore, since the right side plate 5 exists on the right side of the condenser 12 in the figure, it is difficult to secure a space on the right side of the condenser 12. Furthermore, in order to reduce the size of the machine room 8, it is not preferable if the space toward the upper side of the condenser 12 is increased.

With reference to these points of attention, for example, for the condenser 12A, it is preferable to set the header 13 along the direction of gravity as shown in FIG. 15(a) so as to move toward the Z+ direction (the front side perpendicular to the paper surface). ) In an extended manner, the inlet side connecting pipe 16a is installed in the header 13 on the right side of the main body 12a, and is directed to the Z+ direction shown by the solid line or the X- direction shown by the broken line (left side in the illustration) In the way of extension, the outlet-side connecting pipe 16b is installed in the header 13 on the left side of the figure. In addition, FIGS. 15(a) to 15(d) schematically show the state viewed from the arrow XV in FIG. 14.

By installing in the above-mentioned state, compared with the case where the header 13 is arranged up and down (see FIG. 13(b)), the influence of heat generation on the storage room 10 on the upper side of the machine room 8 can be suppressed. In addition, since the inlet side with a higher temperature is arranged on the outer side, the influence of heat generation on other components in the storage room 10 and the machine room 8 can be further suppressed.

Furthermore, the inlet-side connecting pipe 16a is arranged on the upper side and the outlet-side connecting pipe 16b is arranged on the lower side. Therefore, the flow of the refrigerant that changes from a gaseous state to a liquid state is not hindered by gravity. Furthermore, there is a large space on the lower side of the condenser 12 shown in FIG. 14. Therefore, it is easy to secure an installation space, and it is easy to connect the piping 17. That is, in the case of the condenser 12A, it is considered that the arrangement shown in FIG. 15(a) is appropriate.

Moreover, for the condenser 12B, for example, as shown in FIG. 15(b), it is desirable to install the header 13 along the direction of gravity, and to extend the inlet side connecting pipe 16a as shown in the figure so as to extend in the Z+ direction. The header 13 on the right side has an outlet side connecting pipe 16b provided on the lower side with a sealing portion 13a interposed therebetween so as to extend in the Z+ direction.

By installing in the above-mentioned state, the same effect as the condenser 12A can be obtained, for example, the influence of the heat emitted by the condenser 12 on the storage compartment 10 can be suppressed, and the installation space will not be hindered by ensuring the installation space. The refrigerant flows, so the pipe 17 and the like can be easily connected. That is, in the case of the condenser 12B, it is considered that the installation direction and the structure shown in FIG. 15(b) are appropriate.

Moreover, for the condenser 12C, for example, as shown in FIG. 15(c), each header 13 may be installed on the side of the right side plate 5, and the inlet-side connecting pipe 16a may be installed in the Z+ direction so as to extend The header 13 on the upper right side of the main body portion 12a is provided with an outlet side connecting pipe 16b in the header 13 on the lower right side of the main body 12a so as to extend in the Z+ direction.

By installing in the above-mentioned state, the same effect as the condenser 12A can be obtained, for example, the influence of the heat emitted by the condenser 12 on the storage compartment 10 can be suppressed, and the installation space will not be hindered by ensuring the installation space. The refrigerant flows, so the pipe 17 and the like can be easily connected. That is, in the case of the condenser 12C, it is considered that the installation direction and the structure shown in FIG. 15(c) are appropriate.

Furthermore, for the condenser 12D, for example, as shown in FIG. 15(d), the header 13 may be provided so as to be on the diagonal side of the right side plate 5 side and the right side plate 5 side so as to extend in the Z+ direction. , The inlet-side connecting pipe 16a is installed in the header 13 on the upper right side of the main body portion 12a, and the outlet-side connecting pipe 16b is installed in the header on the lower left side of the main body 12a so as to extend in the Z+ direction. 13.

By installing in the above-mentioned state, it is possible to obtain the same effect as the condenser 12A, for example, it is possible to suppress the heat generated by the condenser 12 from exerting influence on the storage. Due to the influence of the storage compartment 10, the installation space is secured without obstructing the flow of the refrigerant, so that the pipe 17 and the like can be easily connected. That is, in the case of the condenser 12D, it is considered that the installation direction and the structure shown in FIG. 15(d) are appropriate.

<Setting example B>

Hereinafter, the installation example B will be described with reference to FIG. 16, FIG. 17(a) to FIG. 17(d), and FIG. 26.

FIG. 16 shows installation example B, and schematically shows a state where the machine room 8 is viewed from above. In this installation example B, the condenser 12 is installed so that the main body 12a and the storage room 10 in front of the machine room 8 are substantially perpendicular. In this case, the outside air is sucked in from the opening 9 provided in the bottom plate 7 and the right side plate 5 to cool the condenser 12, and while the compressor 11 is cooled, it flows through the opening 9 provided in the left side plate 4. exhaust. In other words, it is in a state in which the cooling fan 20 is arranged on the most upstream side of the air flow, the condenser 12 is arranged on the downstream side of the cooling fan 20, and the compressor 11 is arranged on the further downstream side of the condenser 12.

In this case, it is considered that if the inlet side of the condenser 12 is moved away from the storage room 10 on the front side of the machine room 8, the influence of heat generation will be reduced. Furthermore, since the back plate 3 exists on the lower side of the condenser 12 in the figure, it is considered that it is difficult to secure an installation space on the lower side of the condenser 12 in the figure.

With reference to these precautions, for example, for the condenser 12A, it is preferable to follow the direction of gravity as shown in FIG. 17(a) with the inlet-side header 13 at the front side of the figure ( The header 13 is arranged in the manner of the lower side of the illustration in FIG. 16, so as to face the Z+ direction (right side of the illustration) indicated by the solid line or the Z- direction indicated by the dashed line (The left side in the figure) is extended, and the inlet side connection pipe 16a and the outlet side connection pipe 16b are provided. That is, it is preferable to provide the connection pipes (the inlet side connection pipe 16a and the outlet side connection pipe 16b) so as to extend parallel to the blowing direction of the cooling fan 20. Furthermore, FIGS. 17(a) to 17(d) schematically show the state observed from arrow XVII in FIG. 16, and in FIG. 17(a), the dashed line schematically shows the state of the header 13 direction. Furthermore, in order to show whether the header 13 is on the front side or the back side as shown in the figure, a state in which the connecting pipe 16 is connected to the header 13 shown by a broken line is schematically shown.

By installing in the above-mentioned state, it is possible to suppress the influence of heat generation on the storage compartments 10 on the front side and the upper side of the machine room 8, and since the entrance side with a higher temperature is arranged on the back plate 3 side, it is possible to The influence of heat generation on other components in the storage room 10 and the machine room 8 is further suppressed. Furthermore, the inlet-side connecting pipe 16a is arranged on the upper side and the outlet-side connecting pipe 16b is arranged on the lower side. Therefore, the flow of the refrigerant that changes from a gaseous state to a liquid state is not hindered by gravity.

In this case, the cooling fan 20 is installed in the space (S) formed by the inlet-side connecting pipe 16a and the outlet-side connecting pipe 16b, that is, less than the inlet-side connecting pipe 16a and the outlet-side connecting pipe protruding from the main body portion 12a. The range of the length of 16b. In addition, of course, the cooling fan 20 has a size that can be accommodated in the space (S).

In this way, space can be saved. In addition, there is a large space on the right side of the condenser 12 in FIG. 16. Therefore, it is easy to secure an installation space and to connect the pipe 17 easily. Furthermore, in the case where the inlet side connecting pipe 16a and the outlet side connecting pipe 16b are provided so as to extend in the Z-direction (the left side in the figure), the cooling fan 20 may be installed on the inlet side connecting pipe 16a and The outlet side connecting pipe 16b side, that is, the left side of the main body 12a in the figure. That is, in the case of the condenser 12A, it is considered that the arrangement shown in FIG. 17(a) is appropriate.

Moreover, for the condenser 12B, for example, as shown in FIG. 17(b), it is preferable to arrange the header 13 along the direction of gravity so as to move toward the Z+ direction (right side in the figure) indicated by the solid line or indicated by the dashed line. In a manner of extending in the Z-direction (left side in the figure) shown, the inlet-side connecting pipe 16a and the outlet-side connecting pipe 16b are provided in the header 13 on the near side in the figure.

By installing in the above-mentioned state, the same effect as the condenser 12A can be obtained, for example, the influence of the heat emitted by the condenser 12 on the storage compartment 10 can be suppressed, and the installation space will not be hindered by ensuring the installation space. Since the refrigerant flows, the pipe 17 can be easily connected, and space and the like can be saved. That is, in the case of the condenser 12B, it is considered that the installation direction and the structure shown in FIG. 17(b) are appropriate.

Furthermore, for the condenser 12C, for example, as shown in FIG. 17(c), each header 13 is preferably provided so as to be located on the side of the back plate 3, and is shown in the Z+ direction shown by the solid line or the dotted line. In the Z-direction (the left side in the figure), the inlet side connecting pipe 16a is installed on the header 13 in the upper part of the main body part 12a, and the outlet side connecting pipe 16b is installed on the main body part 12a. Show the header 13 below.

By installing in the above-mentioned state, the same effect as the condenser 12A can be obtained, for example, the influence of the heat emitted by the condenser 12 on the storage compartment 10 can be suppressed, and the installation space will not be hindered by ensuring the installation space. Since the refrigerant flows, the pipe 17 can be easily connected, and space and the like can be saved. That is, in the case of the condenser 12C, it is considered that the installation direction and the structure shown in FIG. 17(c) are appropriate.

Furthermore, for the condenser 12D, for example, as shown in FIG. 17(d), it is preferable to provide the inlet side header 13 so as to be located on the side of the back plate 3 and to be located on the diagonal side of the back plate 3 side. The header 13 on the outlet side is installed, and the inlet side connecting pipe 16a is installed in the main body part 12a so as to extend in the Z+ direction indicated by the solid line or the Z- direction indicated by the broken line (left side in the figure). The upper header 13 and the outlet-side connecting pipe 16b are provided in the header 13 below the figure of the main body 12a.

By installing in the above-mentioned state, the same effect as the condenser 12A can be obtained, for example, the influence of the heat emitted by the condenser 12 on the storage compartment 10 can be suppressed, and the installation space will not be hindered by ensuring the installation space. Since the refrigerant flows, the pipe 17 can be easily connected, and space and the like can be saved. That is, in the case of the condenser 12D, it is considered that the installation direction and the structure shown in FIG. 17(d) are appropriate. In addition, the installation example B is the same in the state where the compressor 11, the cooling fan 20, and the condenser 12 are arranged from the left side of the figure as shown in FIG. 26. In other words, the condenser 12 is arranged in the air flow. On the most upstream side, the cooling fan 20 is arranged on the downstream side of the condenser 12 and the compressor 11 is arranged on the further downstream side of the cooling fan 20. The same is true.

<Installation example C> Hereinafter, the installation example C will be described with reference to FIGS. 18 and 19(a) to 19(d). FIG. 18 shows installation example C, and schematically shows a state in which the machine room 8 is viewed from above. In this installation example C, the condenser 12 is installed so that the main body 12a and the bottom plate 7 are parallel. In this case, after the outside air is sucked in from the opening 9 provided in the bottom plate 7 to cool the condenser 12, the condenser 12 is cooled while facing the compressor 11, and the opening 9 provided in the left side plate 4 or the back plate 3 is cooled. exhaust.

In this case, since the storage room 10 on the front side of the machine room 8 is relatively close, it is considered that if the inlet side of the condenser 12 is as far away from the storage room 10 on the front side of the machine room 8 as possible, the heat will be generated. The impact will be reduced. Furthermore, since the heat insulating partition wall 10b is present on the upper side of the condenser 12 in the figure, it is considered that it is difficult to secure an installation space on the upper side of the condenser 12 in the figure.

With reference to these precautions, for example, for the condenser 12A, as shown in FIG. 19(a), it is preferable to be approximately perpendicular to the direction of gravity, and the inlet side header 13 is located near the front side of the figure. (Figure 17(a) to Figure 17(d), the lower side of the figure), the header 13 is installed, and the inlet side connecting pipe 16a is installed so as to extend in the Z+ direction (upper side of the figure) indicated by the solid line And the outlet side connecting pipe 16b. Furthermore, Figs. 19(a) to 19(d) schematically show the state observed from the arrow XIX in Fig. 18, and in Fig. 19(a), the dashed line schematically shows the state of the header 13 direction. In addition, in order to show whether the header 13 is on the near front side or the back side in the figure, a form in which the connecting pipe 16 is connected to the header 13 shown by a broken line is schematically shown.

By installing in the state as described above, the influence of heat generation on the storage room 10 on the front side of the machine room 8 can be suppressed. In addition, the air after cooling the header 13 on the inlet side whose temperature is relatively high is gradually discharged to the outside. Therefore, the influence of heat generation on other components in the machine room 8 can be further suppressed. In this case, in order to promote the flow of the refrigerant, the header 13 provided with the inlet-side connecting pipe 16a may be slightly inclined upward from the header 13 provided with the outlet-side connecting pipe 16b (see FIG. 13(d)).

And the cooling fan 20 is installed in the space (S) formed by the inlet side connection pipe 16a and the outlet side connection pipe 16b. In this way, space can be saved. Furthermore, it is considered that if the connection is made from above the condenser 12, the pipe 17 can be easily connected. That is, in the case of the condenser 12A, it is considered that the arrangement shown in FIG. 19(a) is appropriate.

Furthermore, for the condenser 12B, for example, as shown in FIG. 19(b), it is preferable to set the header 13 approximately perpendicular to the direction of gravity, and to extend the Z+ direction to connect the inlet side connecting pipe 16a and the outlet side The connecting pipe 16b is provided in the header 13 on the near front side in the figure. By installing in the above-mentioned state, the same effect as the condenser 12A can be obtained, for example, the influence of the heat emitted by the condenser 12 on the storage compartment 10 can be suppressed, and the installation space will not be hindered by ensuring the installation space. Since the refrigerant flows, the pipe 17 can be easily connected, and space and the like can be saved. That is, in the case of the condenser 12B, it is considered that the installation direction and the structure shown in FIG. 19(b) are appropriate.

Furthermore, for the condenser 12C, for example, as shown in FIG. 19(c), it is preferable to provide the inlet-side connecting pipe 16a to the right side of the main body 12a in the drawing to extend in the Z+ direction, that is, away from the storage. The header 13 on one side of the chamber 10, and the outlet-side connecting pipe 16b is provided on the header 13 on the left side of the main body 12a, that is, on the side close to the storage chamber 10. By installing in the above-mentioned state, the same effect as the condenser 12A can be obtained, for example, the influence of the heat emitted by the condenser 12 on the storage compartment 10 can be suppressed, and the installation space will not be hindered by ensuring the installation space. Since the refrigerant flows, the pipe 17 can be easily connected, and space and the like can be saved. That is, in the case of the condenser 12C, it is considered that the installation direction and the structure shown in FIG. 19(c) are appropriate.

Furthermore, for the condenser 12D, for example, as shown in FIG. 19(d), it is preferable to provide the inlet-side connecting pipe 16a and the outlet-side connecting pipe 16b in the view of the main body portion 12a so as to extend in the Z+ direction. The header 13 on the near front side, that is, the side away from the storage chamber 10 is shown. By installing in the above-mentioned state, the same effect as the condenser 12A can be obtained, for example, the influence of the heat emitted by the condenser 12 on the storage compartment 10 can be suppressed, and the installation space will not be hindered by ensuring the installation space. Since the refrigerant flows, the pipe 17 can be easily connected, and space and the like can be saved. That is, in the case of the condenser 12D, it is considered that the installation direction and the structure shown in FIG. 19(d) are appropriate.

<Installation example D> Hereinafter, the installation example D will be described with reference to FIGS. 20 and 21(a) to 21(d). FIG. 20 shows the installation example D, and schematically shows the state where the machine room 8 is viewed from the side. In this installation example D, the condenser 12 is installed so that the main body part 12a may follow the inclined part of the heat insulation partition wall 10b, and is installed on the side substantially close to the upper end of the heat insulation partition wall 10b. In addition, although illustration is omitted, the condenser 12 is provided on the side close to the right side plate 5. In this case, outside air is sucked in from the opening 9 provided in the bottom plate 7 to cool the condenser 12.

In this case, the distance between the header 13 of the condenser 12 and the storage room 10 in front of the machine room 8 is fixed. On the other hand, the distance between the header 13 and the storage room 10 in the upper part of the machine room 8 depends on the collection. The position of tube 13 varies. Therefore, in the case of such an installation, it is considered that the influence of heat generation on the storage chamber 10 can be suppressed by installing the header 13 below. On the other hand, if the header 13 on the inlet side is arranged on the lower side in the figure, that is, on the lower side in the direction of gravity, the flow of the refrigerant may be hindered.

With reference to these precautions, for example, for the condenser 12A, as shown in FIG. 21(a), it is preferable to arrange the header 13 along the insulating partition wall 10b, and to move in the Z+ direction (roughly The front side shown in the figure is extended, the inlet side connecting pipe 16a is installed on the header 13 on the right side of the main body 12a, that is, the side close to the side plate, in the Z+ direction shown by the solid line (roughly shown in the figure) The front side) or the X-direction (left in the figure) indicated by the broken line, the outlet-side connecting pipe 16b is provided in the header 13 on the left side of the main body 12a in the figure. In addition, FIGS. 21( a) to 21 (d) schematically show the state viewed from the back side of the refrigerator 1.

By installing in the above-mentioned state, the influence of heat generation on the storage room 10 on the upper side of the machine room 8 can be suppressed. At this time, when the condenser 12A is viewed from the side, the state is approximately as shown in FIG. 19(a), and the cooling fan 20 is arranged in the space (S) formed by the inlet-side connecting pipe 16a and the outlet-side connecting pipe 16b. In this way, space can be saved. That is, in the case of the condenser 12A, it is considered that the arrangement shown in FIG. 21(a) is appropriate.

Furthermore, for the condenser 12B, for example, as shown in FIG. 21(b), it is preferable to provide a header 13 along the heat-insulating partition wall 10b, and to extend the Z+ direction to connect the inlet-side connecting pipe 16a and the outlet The side connecting pipe 16b is provided in the header 13 on the right side in the figure. Furthermore, in this case, it is also preferable to arrange the cooling fan 20 in the space (S) formed by the inlet-side connection pipe 16a and the outlet-side connection pipe 16b.

By installing in the above-mentioned state, the same effect as the condenser 12A can be obtained, for example, the influence of the heat emitted by the condenser 12 on the storage compartment 10 can be suppressed, and the installation space will not be hindered by ensuring the installation space. Since the refrigerant flows, the pipe 17 can be easily connected, and space and the like can be saved. That is, in the case of the condenser 12B, it is considered that the installation direction and the structure shown in FIG. 21(b) are appropriate.

Furthermore, for the condenser 12C, for example, as shown in FIG. 21(c), it is preferable to provide the inlet side connecting pipe 16a in the header on the right side of the main body portion 12a so as to extend in the Z+ direction. 13. In addition, the outlet-side connecting pipe 16b is provided in the header 13 on the left side of the main body 12a in the figure. By installing in the above-mentioned state, the same effect as the condenser 12A can be obtained, for example, the influence of the heat generated by the condenser 12 on the storage compartment 10 can be suppressed, and the space can be saved without obstructing the refrigerant. Flow etc. That is, in the case of the condenser 12D, it is considered that the installation direction and the structure shown in FIG. 21(d) are appropriate.

Furthermore, in the installation example D, a state where the condenser 12 is close to the right side plate 5 is assumed, but in the case of a state where the condenser 12 is close to the left side plate 4, it is only necessary to connect the inlet side according to the opposite idea to the above examples. The direction of the pipe 16a and the outlet-side connecting pipe 16b may be set.

In this way, the refrigerator 1 of the present embodiment adopts the condenser 12 having a different structure according to the installation position in the machine room 8.

According to the embodiment described above, the following effects can be obtained. The refrigerator 1 uses a multi-flow type condenser 12 for heat exchange in the refrigeration cycle 21. The multi-flow type condenser 12 includes a flat tube 14 formed in a flat shape, and a plurality of tubes through which the refrigerant flows are formed inside. The flow path; and the header 13, which becomes the inlet or outlet of the refrigerant flowing to the flat tube 14. Thereby, the multi-flow type condenser 12 is small and has high performance, and therefore can be installed in the machine room 8 after downsizing. Therefore, the condenser 12 provided in the machine room 8 can ensure the necessary heat dissipation.

In addition, the multi-flow condenser 12 can be expected to produce approximately 2 to 3 times the heat dissipation effect of the condenser of the same volume. Therefore, the conventional heat dissipation pipe is not required, the structure can be simplified, and the manufacturing cost can be reduced. Moreover, the reduction of heat leaks in the storage compartment can also contribute to energy saving.

The condenser 12 may be arranged such that the extending direction of the flat tube 14 is horizontal to the installation surface of the refrigerator 1, or it may be arranged such that the extending direction of the flat tube 14 is perpendicular to the installation surface, and the main body 12a can be arranged with the installation surface. It may be arranged in a horizontal manner, and may be arranged in a manner that the main body portion 12a is inclined with respect to the installation surface. That is, the installation direction of the condenser 12 can be set according to the shape of the machine room 8 or other components in the machine room 8. Thereby, the degree of freedom of installation can be improved.

In the installed state of the condenser 12, the refrigerant flows in from the upper side. Thereby, the refrigerant that has been condensed and turned into a liquid state moves downward due to gravity, so that the refrigerant can be efficiently liquefied, that is, the performance of the refrigeration cycle 21 can be improved. The refrigerant inlet side of the condenser 12 is arranged in a direction away from the storage chamber 10. Thereby, it is possible to suppress the storage room 10 or the heat insulating partition wall 10b from being warmed by the heat generated by the condenser 12, and it is possible to reduce heat leakage.

The condenser 12 is disposed in the machine room 8, and the machine room 8 is provided in the main body 2 of the refrigerator 1. An opening 9 for cooling the compressor 11 is provided in the machine room 8, so that external air can be easily introduced and discharged. Therefore, by providing the condenser 12 in the machine room 8, it is possible to efficiently cool the condenser 12 and efficiently discharge the heated air after cooling the condenser 12.

The condenser 12 includes a connecting pipe 16 that is an inlet or an outlet of the refrigerant, and is formed to have a length protruding in the X direction, the Y direction, or the Z direction from the main body portion 12 a where the flat tube 14 is arranged. Furthermore, the cooling fan 20 for cooling the condenser 12 is formed smaller than the outer shape of the main body portion 12a and thinner than the protruding length of the connecting pipe 16, and is arranged between the main body portion 12a and the front end of the connecting pipe 16. In the formed space (S.space).

Thereby, the cooling fan 20 can be installed in the space necessary when installing the condenser 12, and space can be saved. Furthermore, as described above, the multi-flow condenser 12 is compact and has high performance, and can effectively exchange heat even if the air volume is small. Therefore, it is housed in the space formed by the main body 12a and the connecting pipe 16 (S The cooling fan 20 in) can also perform sufficient cooling.

(Other Embodiments) The present invention is not limited to the content exemplified in the above-mentioned embodiments, and can be modified or expanded arbitrarily within the scope of the present invention. For example, it can be modified or expanded as follows.

In the above-mentioned embodiment, the example in which one condenser 12 is cooled by the cooling fan 20 is shown, but for example, it may be configured as follows, namely, as shown in FIGS. 22(a) to 22(c) , One cooling fan 20 is used to cool more than two condensers 12. In this case, for example, as shown in FIG. 22(a), the condenser 12 may be arranged obliquely with respect to the air blowing surface of the cooling fan 20, and as indicated by the arrow Y, the wind sent by the cooling fan 20 may be blown to each condensation器12. Moreover, as shown in FIG. 22( b ), the condenser 12 may be arranged on the air blowing surface so as to overlap the condenser 12 so that the wind sent by the cooling fan 20 may be blown to each condenser 12. In addition, as shown in FIG. 22(c), a plurality of condensers 12 may be arranged side by side on the air blowing surface.

By providing a plurality of condensers 12 in this manner, the capacity of the refrigeration cycle 21 can be improved, and one cooling fan 20 is used to cool the plurality of condensers 12, thereby saving space. In this case, parallel or serpentine condensers may be installed separately, or parallel or serpentine condensers may be installed in a mixed manner.

In the embodiment, the condenser 12 including one main body portion 12a is exemplified, but for example, as shown in FIGS. 23(a) and 23(b), the condenser 12 including a plurality of main body portions 12a may be used. Thereby, the capacity of the refrigeration cycle 21 can be improved without causing the condenser 12 to be excessively enlarged. Thereby, the surface area of the condenser 12 can be increased, or the condenser 12 can be made thinner, so that the space occupied by the condenser 12 can be reduced. Moreover, the heat dissipation efficiency can also be improved.

In addition, although two main body parts 12a are shown in FIG. 23(a) and FIG. 23(b), you may include more than three main body parts 12a. Furthermore, instead of folding as shown in Figs. 23(a) and 23(b), angles may be provided for the main body portions 12a. Furthermore, the plurality of main body portions 12a may be connected in series or in parallel.

In the embodiment, the example in which the condenser 12 is cooled by the cooling fan 20 is shown, but for example, as shown in FIG. 24(a) and FIG. 24(b), defrost water (W) The structure is dripped from above the condenser 12. In addition, the defrosting water is water produced when the frost adhering to the cooler which is not shown in figure melt|dissolves. Thereby, the condenser 12 can be cooled efficiently by the defrosting water. At this time, as long as the direction of the condenser 12 is set so that the flat tube 14 is along the direction of gravity, the defrosting water can be encouraged to flow down the flat tube 14 by gravity, and the cooling water will not stay in the fin 15, and it can be Cool down efficiently.

In the above case, it is also possible to have a configuration in which the defrosting water is dropped from the front, that is, from the direction of the Z axis described in the embodiment to the main body portion 12a. Moreover, it may be set as the structure which drips the defrosting water (W) all the time, and may be set as the structure which drips the defrosting water (W) regularly. Thereby, it is possible to prevent clogging of the heat sink 15 caused by dust or the like.

The structure of the refrigerator 1 exemplified in the embodiment is an example, and the number of storage compartments 10 may be different, or the function or arrangement may be different, for example, a freezer compartment or the like may be provided in the lowermost part. Furthermore, for example, FIG. 2 and the like schematically show the configuration or structure. For example, the sizes or installation locations of the compressor 11 and the condenser 12, the cooling fan 20 and the opening 9 may not necessarily be the relationship shown in the figure.

Furthermore, as shown in FIG. 25, the refrigerator 1 which provided the machine room 8 in the upper part in the main body 2 may be sufficient. That is, the shape of the machine room 8 or the arrangement in the main body 2 is not limited to the shape or arrangement exemplified in the embodiment. In the case of FIG. 25, the header 13 on the inlet side is directed upward, and the header 13 on the outlet side is directed downward. When viewed from the left side plate 4 side, the condenser 12 is directed generally toward Figure 17 ( a) As shown in the installation direction, the influence on the storage room 10 can be suppressed and space can be saved.

Furthermore, as shown in FIG. 27, the heat insulating member 30 may be provided between the condenser 12 and the wall part where the condenser 12 is provided, for example, the heat insulating partition wall 10b of the machine room 8. The heating member 30 blocks the space between the condenser 12 and the insulating partition wall 10b, or at least a part of the space. Thereby, for example, in consideration of the piping, when it is necessary to arrange the inlet-side connecting pipe 16a with a relatively high temperature on the side of the heat insulating partition wall 10b, heat transfer from the condenser 12 to the storage compartment 10 can be suppressed. Furthermore, the heat insulating member 30 may be installed in the space above the condenser 12.

In this way, to block the space between the condenser 12 and the insulating partition wall 10b By providing the heat insulating member 30 in the form of, it is possible to suppress the inflow of air into the space between the condenser 12 and the heat insulating partition wall 10b. In other words, it is possible to effectively concentrate the wind sent by the cooling fan 20 on the condenser 12. Thereby, the condenser 12 can be cooled efficiently.

Furthermore, as shown in FIG. 28, this condenser 12 may be arrange|positioned in the state in contact with the wall part of the installation location where the condenser 12 is provided, for example, the heat insulation partition wall 10b of the machine room 8. In this case, it is desirable to arrange the outlet-side connection pipe 16b, which has a relatively low temperature, on the side of the heat-insulating partition wall 10b. Thereby, the heat transfer from the condenser 12 to the storage compartment 10 can be suppressed. Furthermore, by disposing the condenser 12 in a state in which the condenser 12 is in contact with the heat-insulating partition wall 10b, it is possible to suppress the inflow of air into the space between the condenser 12 and the heat-insulating partition wall 10b, which is conveyed by the cooling fan 20 The wind is effectively concentrated on the condenser 12, and therefore, the condenser 12 can be cooled efficiently. In this case, the heat insulating member 30 may be provided at a location other than the contact location.

Furthermore, when the machine room 8 is installed in the upper part of the main body 2 as shown in FIG. 25, as shown in FIG. 29, the upper and lower walls of the condenser 12 and the walls on the ceiling side and the wall inside the box The state of partial contact is configured. In this case, by arranging the outlet-side connecting pipe 16b with a relatively low temperature inside the box, it is possible to suppress heat transfer to the storage compartment 10 and to bring the inlet-side connecting pipe 16a with a relatively high temperature into contact with the ceiling side. This also promotes heat dissipation from the top plate side.

In each embodiment, the main body part 12a is exemplified as the condenser 12 formed into a substantially thin rectangular parallelepiped shape, but the main body part 12a may have other shapes.

For example, as shown in FIG. 30, in the parallel condenser 12, the inlet side header 13 etc. may be arranged obliquely by changing the length of the flat tube 14, and the main body part 12a may be formed in a partially oblique shape. Alternatively, as shown in FIG. 31, in the serpentine condenser 12, the length when the flat tube 14 is folded back, that is, the turn length, may be changed, thereby forming the body portion 12a into a partially inclined shape. .

In the case of the condenser 12 in which at least a part of the main body portion 12a is inclined as described above, for example, as shown in FIG. 32, by making the inclined part along the wall of the machine room 8, it is possible to effectively use the machine Room 8 space. In other words, dead space can be reduced, and for example, the storage room 10 can be enlarged.

Moreover, as shown in FIG. 33, in the fold-back condenser 12, the header 13 on the upper left side of the figure on the inlet side may be separated from the header 13 on the lower left side of the figure on the outlet side. In addition, the length of the flat tube 14 between these headers 13 and the header 13 on the right side of the drawing, which is the turn-back side, is changed to form the main body portion 12a in a stepped shape. Alternatively, as shown in FIG. 34, in the serpentine condenser 12, the turning length of the flat tube 14 may be set to, for example, two stages, thereby forming the main body portion 12a into a step shape.

In the case of the condenser 12 having a step difference in at least a part of the main body portion 12a as described above, the installation space can be effectively utilized, for example, other mechanical components or piping components not shown can be avoided. In addition, the main body portion 12a may have a shape having both an inclination and a step, or may have a different shape other than a rectangular parallelepiped, such as a substantially U-shaped or C-shaped shape that is partially recessed. Even in the case of such a different shape, the installation space can be effectively utilized, for example, other mechanical components or piping components can be avoided.

In the embodiment, an example in which an axial fan is used as the cooling fan 20 is shown, but a centrifugal fan may also be used as the cooling fan. In the case of a centrifugal fan, air flows from the center of the cooling fan 20 to the radially outer side. As a result, for example, as shown in FIG. 35, when a plurality of condensers 12 are provided, the condensers 12 are arranged side by side in the circumferential direction so as to face the cooling fan 20, whereby one cooling fan can be used. 20 to cool the plurality of condensers 12.

In this case, as shown in FIG. 36, the main body part 12a of the condenser 12 may be formed in a curved shape along the outer shape of the cooling fan 20, and in this case, it may be formed in an arc shape. Thereby, the air flow flowing from the center of the cooling fan 20 to the radially outer side can be used to efficiently cool the condenser 12. Moreover, by extending the body portion 12a along the circumferential direction, the height dimension of the condenser 12 can be reduced, thereby saving space.

Each embodiment is an embodiment presented as an example, and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the spirit of the invention. The present embodiment and its modifications are included in the scope or spirit of the invention, and are included in the invention described in the patent application and its equivalent scope.

1‧‧‧Refrigerator 2‧‧‧Body 3‧‧‧Back plate 4‧‧‧Left side plate 5‧‧‧Right side plate6‧‧‧Top plate7‧‧Bottom plate8‧‧‧Machinery room9‧‧‧Opening 10‧‧‧Storage room 10a‧‧ Door 10b‧‧‧Insulation partition 11‧‧‧Compressor 12‧‧‧Condenser 12A‧‧‧Condenser 12a‧‧‧Main body 12B‧‧‧Condenser 12C ‧‧‧Condenser 12D‧‧‧Condenser 13‧‧‧Head 13a‧‧‧Seal 14‧‧‧Flat tube 15‧‧‧Radiating fin 16a‧‧‧Inlet side connection pipe 16b‧‧‧Outlet side connection Pipe 17‧‧‧Piping 20‧‧‧Cooling fan 21‧‧‧Refrigeration cycle 30‧‧‧Insulation member F‧‧‧Arrow R‧‧‧Region S‧‧‧Space W‧‧‧Defrosting water X‧‧ ‧Axis XV‧‧‧Arrow XVII‧‧‧Arrow XIX‧‧‧Arrow Y‧‧‧Axis Z‧‧‧Axis

Fig. 1 is a diagram schematically showing a refrigerator according to an embodiment. Fig. 2 is a diagram schematically showing a machine room provided in the main body. FIG. 3 is a diagram schematically showing the structure of a condenser in a structure example A. FIG. FIG. 4 is a diagram schematically showing the flow of refrigerant in a structural example A. FIG. FIG. 5 is a diagram schematically showing an installation form of a connecting pipe in a structure example A. FIG. FIG. 6 is a diagram schematically showing the structure of a condenser in a structure example B. FIG. FIG. 7 is a diagram schematically showing the flow of the refrigerant in the structure example B. FIG. FIG. 8 is a diagram schematically showing the attachment form of the connecting pipe in the structure example B. FIG. FIG. 9 is a diagram schematically showing the structure of a condenser in a structure example C. FIG. FIG. 10 is a diagram schematically showing the flow of the refrigerant in the structural example C. FIG. FIG. 11 is a diagram schematically showing an installation form of the connecting pipe in the structural example C. FIG. FIG. 12 is a diagram schematically showing the structure of a condenser in a structure example D. FIG. 13(a) to 13(d) are diagrams schematically showing the installation direction of the condenser. FIG. 14 is a diagram schematically showing an example of the arrangement of components in the machine room in the installation example A. FIG. 15(a) to 15(d) are diagrams schematically showing an example of the installation direction of the condenser in the installation example A. FIG. FIG. 16 is a diagram schematically showing an example of the arrangement of components in the machine room in the installation example B. FIG. 17(a) to 17(d) are diagrams schematically showing an example of the installation direction of the condenser in the installation example B. FIG. FIG. 18 is a diagram schematically showing an example of the arrangement of components in the machine room in the installation example C. FIG. 19(a) to 19(d) are diagrams schematically showing an example of the installation direction of the condenser in the installation example C. FIG. FIG. 20 is a diagram schematically showing an example of the arrangement of components in the machine room in the installation example D. FIG. 21(a) to 21(d) are diagrams schematically showing an example of the installation direction of the condenser in the installation example D. FIG. 22(a) to 22(c) are diagrams schematically showing installation examples of cooling fans and condensers in other embodiments. Fig. 23 (a) and Fig. 23 (b) are diagrams schematically showing other structures of the condenser. 24(a) and 24(b) are diagrams schematically showing an example of the installation direction of the condenser when defrosting water is dropped. FIG. 25 is a diagram schematically showing another example of the arrangement of the machine room. Fig. 26 is a diagram schematically showing another example of arrangement of condensers. Fig. 27 is a diagram schematically showing an arrangement example of a heat insulating member. Fig. 28 is a diagram showing another example of arrangement of condensers in a plan view. Fig. 29 is a diagram showing another example of arrangement of condensers in a side view. Fig. 30 is a diagram schematically showing another structure of a parallel condenser. Fig. 31 is a diagram schematically showing another structure of a serpentine condenser. Fig. 32 is a diagram schematically showing an arrangement form arranged in a machine room. Fig. 33 is a diagram schematically showing another structure of a parallel condenser. Fig. 34 is a diagram schematically showing another structure of a serpentine condenser. Fig. 35 is a diagram schematically showing another structure of a cooling fan and an installation form of a condenser. Fig. 36 is a diagram schematically showing another structure of the condenser.

3: backplane

7: bottom plate

8: Mechanical room

9: Opening

10: Storage room

10a: door

10b: Insulated partition wall

11: Compressor

12: Condenser

20: cooling fan

21: Freezing cycle

Claims (23)

A refrigerator, characterized in that: a multi-flow type condenser is used for heat exchange of a refrigeration cycle, the multi-flow type condenser includes: a flat tube formed in a flat shape, and a refrigerant through which a refrigerant flows is formed inside. A flow path; a header, which becomes an inlet or an outlet of the refrigerant flowing to the flat tube, at least one of the inlet or the outlet of the refrigerant deviates from the front of any of the flat tubes; and a connecting pipe, the A connecting pipe is connected to the header at a position deviated from the height position of the plurality of flow paths in the inlet side and the outlet side of the refrigerant, and the refrigerator includes: cooling the condenser A cooling fan, wherein the connecting pipe is formed to have a length protruding from the main body on which the flat tube is arranged and is connected to an external pipe, and the cooling fan is formed to be smaller than the outer shape of the main body and smaller than the The protruding length of the connecting pipe is thinner and is arranged in a space formed between the main body and the front end of the connecting pipe. The refrigerator according to the first item of the scope of patent application, wherein the refrigerator includes a heat insulating member disposed between the condenser and the wall of the installation location where the condenser is disposed, and At least a part of the space between the condenser and the wall is blocked. The refrigerator as described in item 1 of the scope of patent application, wherein The condenser includes a body part where the flat tube is disposed, and the thickness of the body part is not greater than the outer diameter of the header. The refrigerator according to any one of items 1 to 3 of the scope of the patent application, wherein the condenser is arranged in such a manner that the extending direction of the flat tube is level with the installation surface of the refrigerator. The refrigerator according to any one of items 1 to 3 of the scope of patent application, wherein the condenser is arranged such that the extending direction of the flat tube is perpendicular to the installation surface of the refrigerator. The refrigerator according to any one of items 1 to 3 in the scope of the patent application, wherein the condenser is arranged in a horizontal manner with the installation surface of the refrigerator. The refrigerator according to any one of items 1 to 3 of the scope of patent application, wherein the condenser is arranged in a manner inclined with respect to the installation surface of the refrigerator. The refrigerator according to any one of items 1 to 3 of the scope of patent application, wherein the condenser includes a plurality of body parts, and the plurality of body parts are parts where the flat tubes are arranged. The refrigerator according to claim 8, wherein the condenser includes a plurality of the body parts in parallel. The refrigerator according to claim 8, wherein the condenser includes a plurality of the body parts in series. The refrigerator according to claim 8, wherein the body portion of the condenser is folded. The refrigerator according to any one of items 1 to 3 of the scope of patent application, wherein the inlet side of the refrigerant of the condenser is arranged in a direction away from the storage compartment. The refrigerator according to any one of items 1 to 3 of the scope of the patent application, wherein the condenser is arranged in a machine room, and the machine room is arranged inside the body of the refrigerator. The refrigerator according to any one of items 1 to 3 of the scope of patent application, wherein the condenser is arranged on the upper side of the main body of the refrigerator. The refrigerator according to any one of items 1 to 3 in the scope of patent application, wherein defrosting water is dripped from above the condenser. The refrigerator described in claim 15, wherein the defrosting is made to drip regularly. The refrigerator according to any one of items 1 to 3 in the scope of the patent application, wherein the connecting pipe is formed as a long protruding from the body portion on which the flat pipe is disposed. The connecting pipe extends parallel to the flat pipe and is connected to an external pipe. The refrigerator according to any one of items 1 to 3 of the scope of patent application, wherein the connecting pipe is formed to have a length protruding from the main body portion on which the flat pipe is disposed, and is connected to an external pipe, the The connecting pipe extends perpendicularly with respect to the flat pipe. The refrigerator according to any one of items 1 to 3 of the scope of patent application, wherein the connecting pipe is formed to have a length protruding from the main body portion on which the flat pipe is disposed, and is connected to an external pipe, the The connecting pipe extends parallel or perpendicular to the flat pipe, and has different directions with respect to the flat pipe on the inlet side and the outlet side. The refrigerator according to any one of items 1 to 3 in the scope of the patent application, wherein the connecting pipe is formed to have a length protruding from the main body part where the flat pipe is arranged, and is connected to an external pipe, The direction in which the connecting pipe protrudes from the main body is different on the inlet side and the outlet side. The refrigerator according to any one of items 1 to 3 of the scope of patent application, which includes: a cooling fan for cooling the condenser, The connecting pipe is formed to have a length protruding from the main body portion where the flat pipe is arranged, and is connected to an external pipe, and the connecting pipe extends in parallel with the blowing direction of the cooling fan. The refrigerator according to any one of items 1 to 3 in the scope of the patent application, wherein the condenser is a parallel or fold-back condenser in which a plurality of the flat tubes are arranged in parallel. The length of the flat tube is formed in a stepped shape, an inclined shape, or a shape including both a stepped shape and an inclined shape of the main body part where the flat tube is arranged. The refrigerator according to any one of items 1 to 3 of the scope of the patent application, wherein the condenser is connected between the inlet and the outlet by bending a flat tube along the thickness direction In the serpentine condenser, by changing the turning length of the flat tube, the body part where the flat tube is arranged is formed in a stepped shape, an inclined shape, or a shape including both a stepped difference and an inclined shape.

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