WO2017188146A1

WO2017188146A1 - Refrigerator

Info

Publication number: WO2017188146A1
Application number: PCT/JP2017/016031
Authority: WO
Inventors: 林　秀竹; 野口　明裕; 耕世西村
Original assignee: 東芝ライフスタイル株式会社
Priority date: 2016-04-27
Filing date: 2017-04-21
Publication date: 2017-11-02

Abstract

In this refrigerator 1, heat exchange of a refrigeration cycle 21 is carried out using a multiflow-type condenser 12 which comprises a flat pipe 14, which is formed in a flat shape and in which multiple flow paths are internally formed for circulating a refrigerant, and a header 13, which is the refrigerant inlet or the outlet into the flat pipe 14.

Description

refrigerator

Embodiment of this invention is related with a refrigerator.

The refrigerator has a refrigeration cycle composed of a compressor and a condenser. These compressors and condensers are installed in a so-called machine room and generate heat during operation, so that they are cooled by a cooling fan. For example, Patent Document 1 proposes to efficiently cool the compressor, the condenser, and the like in the machine room by devising the arrangement of the exhaust ports.

JP 2014-238219 A

In recent years, it has been desired to increase the volume of a storage room such as a refrigerator room. At this time, the machine room is relatively miniaturized in order to increase the volume without increasing the size of the main body. As a result, a large capacitor cannot be installed in the machine room, and measures such as securing a necessary heat radiation amount by providing a separate heat radiation pipe on the back side of the refrigerator, for example, have been required.
Thus, a refrigerator is provided that can increase the volume of a storage room and can secure a necessary heat dissipation amount in a refrigeration cycle.

The refrigerator of the embodiment is a multi-flow type having a flat tube that is formed in a flat shape, a plurality of flow passages in which the refrigerant flows therein, and a header that serves as an inlet or an outlet of the refrigerant to the flat tube. Heat exchange of the refrigeration cycle is performed using a condenser.

The figure which shows the refrigerator of embodiment typically The figure which shows the machine room provided in the body typically The figure which shows the structure of the capacitor | condenser in the structural example A typically The figure which shows the flow of the refrigerant | coolant in the structural example A typically The figure which shows the attachment aspect of the connection pipe in the structural example A typically The figure which shows the structure of the capacitor | condenser in the structural example B typically The figure which shows typically the flow of the refrigerant | coolant in the structural example B The figure which shows the attachment aspect of the connection pipe in the structural example B typically The figure which shows the structure of the capacitor | condenser in the structural example C typically The figure which shows typically the flow of the refrigerant | coolant in the structural example C The figure which shows typically the attachment aspect of the connecting pipe in the structural example C The figure which shows the structure of the capacitor | condenser in the structural example D typically Diagram showing capacitor orientation The figure which shows typically the example of component arrangement | positioning in the machine room in the installation example A The figure which shows an example of the installation direction of the capacitor | condenser in the installation example A typically The figure which shows typically the example of component arrangement | positioning in the machine room in the installation example B The figure which shows typically an example of the installation direction of the capacitor in the installation example B The figure which shows typically the example of component arrangement | positioning in the machine room in the installation example C The figure which shows typically an example of the installation direction of the capacitor in the installation example C The figure which shows typically the example of component arrangement | positioning in the machine room in the installation example D The figure which shows typically an example of the installation direction of the capacitor | condenser in the installation example D The figure which shows typically the example of installation of the cooling fan and capacitor | condenser in other embodiment. Diagram showing another structure of capacitor The figure which shows an example of the installation direction of a capacitor | condenser at the time of dripping defrost water typically The figure which shows the other example of arrangement of a machine room typically Diagram showing another example of capacitor arrangement The figure which shows the example of arrangement | positioning of a heat insulation member typically The figure which shows the other example of arrangement | positioning of the capacitor in planar view The figure which shows the other example of arrangement | positioning of the capacitor in a side view Diagram showing another structure of parallel capacitor Diagram showing another structure of serpentine type capacitor The figure which shows the arrangement mode to the machine room typically Diagram showing another structure of parallel capacitor Diagram showing another structure of serpentine type capacitor Diagram showing another cooling fan structure and capacitor installation mode Diagram showing another structure of capacitor

Hereinafter, embodiments will be described with reference to FIGS. 1 to 21.
As shown in FIG. 1, the refrigerator 1 has a main body 2 that is generally rectangular. The main body 2 has a back plate 3, a left side plate 4, a right side plate 5, a top plate 6 and a bottom plate 7 (see FIG. 2), and the front surface is open. The opening on the front surface of the main body 2 is opened and closed by a door 10a (see FIG. 2). The back plate 3, the left side plate 4, the right side plate 5, the top plate 6 and the bottom plate 7 are not shown in the figure, but have, for example, a vacuum heat insulating panel, foamed polyurethane, or a structure using them together, and the storage chamber 10 (FIG. 2) and the outside of the refrigerator 1.

Hereinafter, in the present specification, as shown in FIG. 1, the direction along the gravity in the state where the refrigerator 1 is installed is the vertical direction, and the direction from the left side plate 4 to the right side plate 5 is left and right in the state where the refrigerator 1 is viewed from the front. The direction from the door 10a to the back plate 3 side will be described as the front-rear direction.
A machine room 8 is provided in the lower part of the main body 2. The back plate 3, the left side plate 4, the right side plate 5, and the bottom plate 7 have an opening 9 communicating with the machine room 8 at a position corresponding to the machine room 8. Each opening 9 functions as an intake port for sucking air from the outside into the machine room 8 or an exhaust port for discharging air from the machine room 8 to the outside when the cooling fan 20 (see FIG. 2) is operated. Whether the opening 9 functions as an intake port or an exhaust port is determined by the position of the cooling fan 20 in the machine room 8. The opening 9 may be a simple slit, may be processed into a louver shape, or may be provided with a dustproof filter or the like.

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

A storage room 10 such as a vegetable room is provided in front of the machine room 8 and is opened and closed by a pull-out door 10a. In addition, a storage room 10 such as a freezing room is provided above the machine room 8 and is opened and closed by a pull-out door 10a. Moreover, although illustration is abbreviate | omitted, the storage chamber 10, such as a refrigerator compartment, is provided above the inside of the main body 2, for example, is opened and closed by the rotary door 10a. Since the compressor 11 and the condenser 12 generate heat, the machine room 8 and each storage room 10 are partitioned by a heat insulating partition wall 10b.

In this embodiment, a so-called multiflow type capacitor 12 is used as the capacitor 12 installed in the machine room 8. As will be described in detail later, the multiflow capacitor 12 has a flat tube 14 connected between the headers 13 as shown in FIG. 3 and the like, and a plurality of flow paths are provided in parallel in the flat tube 14. It has a configuration. Hereinafter, this configuration is referred to as a parallel type for convenience. Further, the multi-flow type capacitor 12 has a configuration in which a single flat tube 14 meandering between the headers 13 is connected as shown in FIG. Hereinafter, this configuration is referred to as a meandering type for the sake of convenience. In addition, heat radiation fins 15 are provided between the flat tubes 14.

Next, the operation of the above configuration will be described.
For example, as can be imagined from FIG. 2, in order to increase the storage capacity without incurring an increase in the size of the main body 2, that is, to increase the volume of the storage chamber 10, the machine chamber 8 is relatively small. It is necessary to make it. However, if the machine room 8 is downsized, the volume of the machine room 8 is reduced, so that it is not possible to install a large part that can secure a sufficient heat dissipation amount. For this reason, in order to secure the necessary heat dissipation amount, for example, measures such as providing a separate heat dissipation pipe on the back side have been taken.
On the other hand, in this embodiment, the multiflow type capacitor 12 is adopted. Since the multi-flow type capacitor 12 has a large surface area even if it is small, it can secure a sufficient heat radiation amount and can also be installed in the miniaturized machine room 8.

Incidentally, there are a plurality of points to be noted when the capacitor 12 is installed. For example, since other parts are also installed in the machine room 8 as described above, the location of the capacitor 12 may be limited by the position of the other parts, the position of the opening 9, and the like. In particular, in the case of the refrigerator 1, since the storage room 10 such as a refrigerator room or a freezer room is provided, it is necessary to suppress the influence of heat generation on the storage room 10. Further, in an actual manufacturing process, it is necessary to consider the ease of connection with a pipe 17 (see FIG. 5 and the like) described later.

That is, when the multi-flow type capacitor 12 is installed in the refrigerator 1, it is not only necessary that the capacitor 12 is small, but ingenuity is required in the installation location and the installation direction. Hereinafter, first, a plurality of structures (structure examples A to D) of the capacitor 12 will be described, and then suitable installation examples (installation examples A to D) in the structure examples A to D will be described.

<Structure example A: Parallel structure, in which the flow of refrigerant is unidirectional>
A structure example A that is a parallel type and has a unidirectional refrigerant flow will be described with reference to FIGS. Hereinafter, the capacitor 12 of the structural example A is referred to as a capacitor 12A for the sake of convenience with the suffix “A” corrected. The same applies to each structural example described later. However, in the case where a common description is given in each structural example, the description will be made without adding a suffix.

As shown in FIG. 3, the capacitor 12 A has a plurality of flat tubes 14 provided in parallel between two cylindrical headers 13. Each flat tube 14 has a plurality of channels formed therein, and each channel communicates with each header 13. For this reason, the refrigerant flows in parallel in the flat tube 14. With such a structure, it is called a multiflow type or a parallel flow type.

Now, the refrigerant that has flowed into the 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, for example, by forming a thin metal plate in a wave shape, the radiating fins 15 provided between the flat tubes 14 are in contact with the flat tubes 14, thereby releasing the heat of the flat tubes 14. To do. Hereinafter, the part where each flat tube 14 and the radiation fin 15 are arranged is referred to as a main body 12a for convenience. The main body 12a as a whole can be regarded as having a rectangular parallelepiped outer edge.

Hereinafter, the width direction of the main body 12a, that is, the direction from one header 13 to the other header 13 in FIG. Further, the height direction of the main body 12a, that is, the direction in which the cylindrical header 13 extends in FIG. The thickness direction of the main body 12a, that is, the direction orthogonal to the X axis and the Y axis is referred to as the Z axis. Further, in FIG. 3, the directions of the arrows indicating the X axis, the Y axis, and the Z axis are assumed to be positive directions, “+” is attached to the positive direction with respect to the main body 12a, and “+” is assigned to the negative direction that is the opposite direction. -"

Each header 13 is provided with a connecting pipe 16. The connecting pipe 16 is provided to connect to the pipe 17 (see FIG. 5), and is firmly connected to the header 13, while the side connected to the pipe 17 is, for example, curved or It is formed in a pipe shape that can be bent, and is connected to the pipe 17 by brazing, for example. Hereinafter, the connecting pipe 16 on the refrigerant inlet side will be referred to as an inlet side connecting pipe 16a for the sake of convenience, and the connecting pipe 16 on the outlet side of the refrigerant will be referred to as an outlet side connection pipe 16b for the sake of convenience. 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 such a capacitor 12A, as shown in a simplified diagram in FIG. 4, the refrigerant flowing from the inlet side connecting pipe 16a is indicated by an arrow F from the header 13 provided with the inlet side connecting pipe 16a. In this way, it flows in each flat tube 14 toward the other header 13 and flows out from the outlet side connection tube 16b. That is, in the case of the capacitor 12A, the refrigerant flow is unidirectional. At this time, the refrigerant is in a gaseous state when flowing into the inlet-side connecting pipe 16a, and is condensed by the condenser 12 so as to be in a liquid state when flowing out from the outlet-side connecting pipe 16b.

Therefore, in the capacitor 12, the temperature of the header 13 on the inlet side is relatively high, and the temperature of the header 13 on the outlet side is relatively low. The flat tube 14 has the highest temperature on the inlet side, and the temperature decreases as the temperature approaches the outlet side. That is, the temperature distribution is generated in the main body 12 a of the capacitor 12 including the header 13.

Now, when the restriction by the installation location and the installation direction is not considered, the inlet side connection pipe 16a and the outlet side connection pipe 16b are considered to have a relatively high degree of freedom. Specifically, as shown by a solid line and a broken line in FIG. 5, the inlet side connecting pipe 16a is provided 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. be able to. Similarly, the outlet side connecting pipe 16b can be provided 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 capacitor 12 has connecting pipes (an inlet-side connecting pipe 16a and an outlet-side connecting pipe 16b) that are formed in a length protruding from the main body 12a where the flat tube 14 is disposed and are connected to the external pipe 17. Have. The connecting pipes (inlet side connecting pipe 16 a and outlet side connecting pipe 16 b) may extend parallel to the flat tube 14 or may extend vertically to the flat tube 14. Further, the inlet side connecting pipe 16a and the outlet side connecting pipe 16b may have different directions with respect to the flat tube 14, or may have different directions protruding from the main body portion 12a. The same applies to a meandering capacitor 12 (see FIGS. 9 and 12) described later.

Although illustration is omitted, the inlet side connecting pipe 16a and the outlet side connecting pipe 16b do not necessarily need to be strictly orthogonal or parallel to these directions, that is, to the respective axes, and may be slightly inclined. It is good or it may be greatly inclined with respect to each axis. Further, 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, there is a possibility that the refrigerant does not flow evenly in all the flat pipes 14, In the case of the capacitor 12A, the inlet side connecting pipe 16a and the outlet side connecting pipe 16b are desirably provided as diagonally as possible.

However, the pipes 17 connected to the connection pipes 16 correspond to the directions of the connection pipes 16 near the capacitors 12. Therefore, for example, 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 as shown in FIG. 5, the pipe 17 is connected from the X direction. Considering the size including the pipe 17, the actual installation space required when installing the capacitor 12A is required to some extent in the X direction, that is, the width direction of the main body 12a.
Similarly, when the inlet side connecting pipe 16a is provided so as to extend in the Z + direction, for example, an installation space is required to some extent in the Z direction, that is, the thickness direction of the main body 12a. That is, the installation space is limited by the direction of each connecting pipe 16.

<Structural Example B: Parallel structure with refrigerant flow in two directions>
A structural example B which is a parallel type and has a bi-directional refrigerant flow will be described with reference to FIGS.
As shown in FIG. 6, the basic structure of the capacitor 12 B is common to the capacitor 12 A, and a plurality of flat tubes 14 are provided in parallel between two cylindrical headers 13. Each flat tube 14 has a plurality of channels formed therein, and each channel communicates with each header 13. For this reason, the refrigerant flows in parallel in the flat tube 14. In addition, heat radiation fins 15 are provided between the flat tubes 14.

However, in the case of the capacitor 12B, one header 13 is provided with both the inlet side connecting pipe 16a and the outlet side connecting pipe 16b, and a sealing portion is provided between the inlet side connecting pipe 16a and the outlet side connecting pipe 16b. 13a is provided. The sealing portion 13 a seals the inside of the cylindrical header 13. That is, the sealing part 13a divides the inside of one header 13 into two ranges. Further, the sealing portion 13a relatively increases the number of flat tubes 14 on the inlet side and relatively decreases the number of flat tubes 14 on the outlet side. This is because the volume is large because the refrigerant is gaseous on the inlet side, and the volume is reduced because it is condensed and liquid on the outlet side. Thereby, efficiency can be improved.

In the case of such a capacitor 12B, as shown in a simplified diagram in FIG. 7, the gaseous refrigerant that has flowed from the inlet side connecting pipe 16a is more at the inlet than the sealing portion 13a, as indicated by an arrow F. After flowing in each flat tube 14 located on the side connecting pipe 16a side toward the other header 13, it passes through the other header 13 and each flat located on the outlet side connecting tube 16b side from the sealing portion 13a. After flowing in the pipe 14 in the reverse direction, it flows out from the outlet side connecting pipe 16b. That is, in the case of the capacitor 12B, the refrigerant flows in two directions. Hereinafter, the capacitor 12 having such a structure is referred to as a folding type for convenience.

Also in the case of this capacitor 12B, the degree of freedom in the direction of the inlet side connecting pipe 16a and the outlet side connecting pipe 16b is relatively high unless restrictions are imposed by the installation location and the installation direction. Specifically, as shown by a solid line and a broken line in FIG. 8, the inlet side connection pipe 16a is provided in various directions such as an X− direction, a Y + direction, a Z + direction, and a Z− direction with respect to the main body portion 12a. be able to. Similarly, the outlet side connecting pipe 16b can be provided 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.

Also in the case of this capacitor 12B, the piping 17 connected to each connecting pipe 16 is in accordance with the direction of the connecting pipe 16 near the capacitor 12, so that the installation space is limited by the direction of each connecting pipe 16. It will be. In addition, although illustration is abbreviate | omitted, the entrance side connection pipe | tube 16a and the exit side connection pipe | tube 16b may be inclined a little, and may be largely inclined with respect to each axis | shaft.

<Structure Example C: Structure with Serpentine Type and Header on the Same Side>
A structure in which the header 13 is provided on the same side, ie, a structural example C in which the inlet and outlet of the refrigerant are arranged on the same side with respect to the main body 12a, with reference to FIGS. explain.

As shown in FIG. 9, the capacitor 12C is provided with a single flat tube 14 meandering between two relatively small cylindrical headers 13. The flat tube 14 has a plurality of channels formed therein, and each channel communicates with each header 13. That is, in the meandering type capacitor 12C, one flat tube 14 is bent in the thickness direction and connected from the inlet to the outlet. Even in this case, the refrigerant flows in parallel in the flat tube 14. In addition, heat radiation fins 15 are provided between the folded flat tubes 14. In the case of the capacitor 12C, the inlet-side header 13 and the outlet-side header 13 are provided on the same side with respect to the main body portion 12a.

In the case of such a capacitor 12C, as shown in a simplified diagram in FIG. 10, the gaseous refrigerant flowing in from the inlet side connecting pipe 16a passes through the flat pipe 14 as shown by the arrow F. It flows toward the header 13 and flows out from the outlet side connection pipe 16b. In addition to the direction perpendicular to the flat tube 14 as shown in FIG. 9, the header 13 may be oriented horizontally or coaxially with the flat tube 14. Since the header 13 itself is small, it is considered that the problem of space is mainly caused by the direction of the connecting pipe 16.

Also in the case of this capacitor 12C, the degree of freedom in the direction of the inlet side connecting pipe 16a and the outlet side connecting pipe 16b is relatively high unless the restriction due to the installation location and the installation direction is considered. Specifically, as shown by a solid line and a broken line in FIG. 11, the inlet side connecting pipe 16a has various types such as a Z + direction, an X− direction, a Y + direction, a Y− direction, and a Z− direction with respect to the main body portion 12a. Can be provided in any orientation. Similarly, the outlet side connection pipe 16b can be provided 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.

Also in the case of this capacitor 12 C, the pipe 17 connected to each connection pipe 16 corresponds to the direction of the connection pipe 16 near the capacitor 12, so that the installation space is limited by the direction of each connection pipe 16. It will be. In addition, although illustration is abbreviate | omitted, the entrance side connection pipe | tube 16a and the exit side connection pipe | tube 16b may be inclined a little, and may be largely inclined with respect to each axis | shaft.

<Structure Example C: Structure with Serpentine Type and Headers on the Diagonal Side>
A structure example D which is a meandering type and has headers 13 provided on the diagonal side, that is, a structure example D in which the inlet and outlet of the refrigerant are arranged diagonally with respect to the main body 12a will be described with reference to FIG. .
As shown in FIG. 12, the capacitor 12D is generally in common with the capacitor 12C, but two cylindrical headers 13 are provided at positions diagonal to the main body 12a.

Also in the case of this capacitor 12C, the degree of freedom in the direction of the inlet side connecting pipe 16a and the outlet side connecting pipe 16b is relatively high unless the restriction due to the installation location and the installation direction is considered. Specifically, the inlet side connecting pipe 16a can be provided in various directions, such as a Z + direction, an X− direction, a Y + direction, a Y− direction, and a Z− direction, with respect to the main body portion 12a. Similarly, the outlet side connecting pipe 16b can be provided 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.

Also in the case of this capacitor 12 D, the piping 17 connected to each connecting pipe 16 corresponds to the direction of the connecting pipe 16 near the capacitor 12, so that the installation space is limited by the direction of each connecting pipe 16. It will be. In addition, although illustration is abbreviate | omitted, the entrance side connection pipe | tube 16a and the exit side connection pipe | tube 16b may be inclined a little, and may be largely inclined with respect to each axis | shaft.

Now, the capacitors 12 shown in the above structural examples A to D have various installation directions. For example, in the case of the capacitor 12A, as shown in FIG. 13A, a state in which the height direction of the main body portion 12a is installed along the direction of gravity, that is, the header 13 is along the direction of gravity and flattened. It is conceivable that the tube 14 is horizontal to the installation surface. In FIG. 13, the connection pipe 16 is not shown.

Moreover, as shown in FIG. 13B, the width direction of the main body 12a is installed along the direction of gravity, that is, the header 13 is horizontal to the installation surface, and the flat tube 14 is along the direction of gravity. The state is considered. Also, as shown in FIG. 13C, the thickness direction of the main body portion 12a is installed along the direction of gravity, and as shown in FIG. 13D, the thickness direction of the main body portion 12a is inclined with respect to the direction of gravity. It can be considered to be installed in In addition, although illustration is abbreviate | omitted, the state (refer FIG. 20) which installs the header 13 diagonally with respect to the gravity direction is also considered.

<Installation example A>
Hereinafter, the installation example A will be described with reference to FIGS. 14 and 15.
FIG. 14 shows an installation example A, schematically showing a state in which the machine room 8 is viewed from above. In this installation example A, the capacitor 12 is installed such that the main body 12 a is substantially parallel to the storage chamber 10 in front of the machine room 8. In this case, after sucking outside air from the opening 9 provided in the bottom plate 7 and cooling the condenser 12, the compressor 11 is cooled and exhausted from the opening 9 provided in the left plate 4.

First, since the storage chambers 10 are provided in front and above the machine room 8 as described above, it is desirable that the heat radiation from the capacitor 12 has less influence on the storage rooms 10. In this case, since the distance to the storage chamber 10 on the front side of the machine room 8 is the same, it is conceivable to consider the influence on the storage chamber 10 on the upper side of the machine room 8 (see FIG. 2).

Further, since the condenser 12 condenses the gaseous refrigerant into the liquid state as described above, it is desirable that the outlet side connection pipe 16b is positioned below. Further, since the right side plate 5 exists on the right side of the capacitor 12 in the figure, it is difficult to secure a space on the right side of the capacitor 12. In order to reduce the size of the machine room 8, it is not preferable that the space above the capacitor 12 is increased.

Considering these points, for example, in the case of the capacitor 12A, as shown in FIG. 15A, the header 13 is installed so as to be along the direction of gravity, and the header 13 on the right side of the main body portion 12a is connected to the inlet side. The connecting pipe 16a is provided so as to extend in the Z + direction (front side perpendicular to the paper surface), and the outlet side connecting pipe 16b is provided on the header 13 on the left side in the figure with the Z + direction indicated by a solid line or the X-direction indicated with a broken line (left side in the figure). It is preferable that it is provided so as to extend to the side). FIG. 15 schematically shows the state seen from the arrow XV in FIG.

By installing in such a state, the influence of heat generation on the storage chamber 10 on the upper side of the machine room 8 can be suppressed as compared with the case where the header 13 is arranged vertically (see FIG. 13B). . Further, since the inlet side where the temperature is relatively high is arranged on the outside side, the influence of heat generation on not only the storage chamber 10 but also other components in the machine chamber 8 can be further suppressed.

In addition, since the inlet side connecting pipe 16a is disposed on the upper side and the outlet side connecting pipe 16b is disposed on the lower side, the flow of the refrigerant that transitions from a gaseous state to a liquid state is not hindered by gravity. In addition, since there is a relatively small space on the lower side of the capacitor 12 in FIG. 14, it is easy to secure an installation space and to connect the pipe 17. That is, in the case of the capacitor 12A, the arrangement shown in FIG. 15A is considered suitable.

Further, for example, in the case of the capacitor 12B, as shown in FIG. 15B, the header 13 is installed along the direction of gravity, and the inlet side connection pipe 16a is provided in the header 13 on the right side of the drawing so as to extend in the Z + direction. In addition, it is desirable to provide the outlet side connecting pipe 16b on the lower side with the sealing portion 13a interposed therebetween so as to extend in the Z + direction.

By installing in such a state, the installation space can be secured without hindering the flow of the refrigerant while suppressing the influence on the storage chamber 10 due to the heat generated from the capacitor 12, so that the pipe 17 can be easily connected. The same effect as the capacitor 12A described above can be obtained. That is, in the case of the capacitor 12B, it is considered that the installation direction and structure as shown in FIG.

Further, for example, in the case of the capacitor 12C, as shown in FIG. 15C, each header 13 is installed so as to be positioned on the right side plate 5 side, and the inlet-side connecting pipe is connected to the header 13 at the upper right side of the main body 12a. 16a may be provided so as to extend in the Z + direction, and the inlet side connecting pipe 16a may be provided so as to extend in the Z + direction on the header 13 on the lower right side of the main body 12a.

By installing in such a state, the installation space can be secured without hindering the flow of the refrigerant while suppressing the influence on the storage chamber 10 due to the heat generated from the capacitor 12, so that the pipe 17 can be easily connected. The same effect as the capacitor 12A described above can be obtained. That is, in the case of the capacitor 12C, it is considered that the installation direction and structure as shown in FIG.

Further, for example, in the case of the capacitor 12D, as shown in FIG. 15D, the header 13 is installed so as to be on the right side plate 5 side and the side opposite to the right side plate 5 side. The inlet side connecting pipe 16a may be provided so as to extend in the Z + direction, and the outlet side connecting pipe 16b may be provided in the header 13 on the lower left side of the main body 12a so as to extend in the Z + direction.

<Installation example B>
Hereinafter, the installation example B will be described with reference to FIGS. 16, 17, and 26.
FIG. 16 shows an installation example B, schematically showing a state in which the machine room 8 is viewed from above. In this installation example B, the capacitor 12 is installed such that the main body 12 a is substantially perpendicular to the storage chamber 10 in front of the machine room 8. In this case, after sucking outside air from the openings 9 provided in the bottom plate 7 and the right plate 5 to cool the condenser 12, the compressor 11 is cooled and exhausted from the openings 9 provided in the left plate 4. become. In other words, the cooling fan 20 is disposed on the most upstream side in the air flow, the condenser 12 is disposed on the downstream side, and the compressor 11 is disposed on the further downstream side.

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

Considering these points, for example, in the case of the capacitor 12A, as shown in FIG. 17A, the header 13 is along the direction of gravity, and the header 13 on the inlet side is the front side of the drawing (FIG. 16). The inlet side connecting pipe 16a and the outlet side connecting pipe 16b are arranged in the Z + direction (right side in the figure) as indicated by solid lines or the Z− direction (left side in the figure) indicated by broken lines. It is preferable that it is provided so as to extend in the direction toward the other side. That is, it is preferable to provide the connecting pipes (inlet side connecting pipe 16 a and outlet side connecting pipe 16 b) so as to extend in parallel to the air blowing direction of the cooling fan 20. FIG. 17 schematically shows the state seen from the arrow XVII in FIG. 16, and in FIG. 17A, the direction of the header 13 is schematically shown by a broken line. In addition, in order to indicate whether the header 13 is the front side or the back side in the drawing, the connection pipe 16 is schematically shown in a mode connected to the header 13 indicated by a broken line.

By installing in such a state, the entrance side where the temperature becomes relatively high is disposed on the back plate 3 side while suppressing the influence of heat generation on the storage chambers 10 on the front side and the upper side of the machine room 8. Therefore, the influence of heat generation on not only the storage chamber 10 but also other components in the machine chamber 8 can be further suppressed. In addition, since the inlet side connecting pipe 16a is disposed on the upper side and the outlet side connecting pipe 16b is disposed on the lower side, the flow of the refrigerant that transitions from the gaseous state to the liquid state is not hindered by gravity.

In this case, the cooling fan 20 has a space (S) formed by the inlet side connecting pipe 16a and the outlet side connecting pipe 16b, that is, the inlet side connecting pipe 16a and the outlet side connecting pipe 16b protruding from the main body 12a. It is provided in a range less than the length. Needless to say, the cooling fan 20 is large enough to fit in the space (S).

This can save space. In addition, since there is a relatively large space on the right side of the capacitor 12 in FIG. 16, it is easy to secure an installation space and to connect the pipe 17 easily. Further, when the inlet side connecting pipe 16a and the outlet side connecting pipe 16b are provided so as to extend in the Z-direction (left side in the figure), the cooling fan 20 is placed on that side, that is, on the left side in the figure of the main body 12a. It should be provided on the side. That is, in the case of the capacitor 12A, it is considered that the arrangement as shown in FIG.

Further, for example, in the case of the capacitor 12B, as shown in FIG. 17B, the header 13 is installed along the direction of gravity, and the inlet-side connecting pipe 16a and the outlet-side connecting pipe are connected to the header 13 on the front side in the figure. 16b is preferably provided so as to extend in the Z + direction (right side in the figure) as indicated by a solid line or in the Z-direction (left side in the figure) indicated by a broken line.

By installing in such a state, the installation space can be secured without hindering the flow of the refrigerant while suppressing the influence on the storage chamber 10 due to the heat generated from the capacitor 12, so that the pipe 17 can be easily connected. Thus, the same effect as the above-described capacitor 12A can be obtained, such as saving space. That is, in the case of the capacitor 12B, it is considered that the installation direction and structure as shown in FIG.

Further, for example, in the case of the capacitor 12C, as shown in FIG. 17C, each header 13 is installed so as to be positioned on the back plate 3 side, and the inlet side connecting pipe 16a is connected to the header 13 in the upper part of the main body 12a in the figure. Further, it is preferable that the outlet side connecting pipe 16b is provided in the header 13 below the main body 12a so as to extend in the Z + direction indicated by a solid line or the Z− direction (left side in the figure) indicated by a broken line.

By installing in such a state, the installation space can be secured without hindering the flow of the refrigerant while suppressing the influence on the storage chamber 10 due to the heat generated from the capacitor 12, so that the pipe 17 can be easily connected. Thus, the same effect as the above-described capacitor 12A can be obtained, such as saving space. That is, in the case of the capacitor 12C, it is considered that the installation direction and structure as shown in FIG.

Further, for example, in the case of the capacitor 12D, as shown in FIG. 17 (d), the inlet-side header 13 is placed on the back plate 3 side, and the outlet-side header 13 is placed on the diagonal side. The inlet side connecting pipe 16a is shown in the header 13 at the upper part of the figure 12a, and the outlet side connecting pipe 16b is shown in the header 13 at the lower side of the main body 12a. It is preferable to provide it so as to extend to the left side.

By installing in such a state, the installation space can be secured without hindering the flow of the refrigerant while suppressing the influence on the storage chamber 10 due to the heat generated from the capacitor 12, so that the pipe 17 can be easily connected. Thus, the same effect as the above-described capacitor 12A can be obtained, such as saving space. That is, in the case of the capacitor 12D, it is considered that the installation direction and structure as shown in FIG.
In this installation example B, as shown in FIG. 26, the compressor 11, the cooling fan 20, and the condenser 12 are arranged from the left side of the figure, in other words, the condenser 12 is arranged on the most upstream side in the air flow. The same applies to the state in which the cooling fan 20 is disposed on the downstream side and the compressor 11 is disposed on the further downstream side.

<Example C>
Hereinafter, the installation example C will be described with reference to FIGS. 18 and 19.
FIG. 18 shows an installation example C, schematically showing a state in which the machine room 8 is viewed from above. In this installation example C, the capacitor 12 is installed such that the main body 12 a is parallel to the bottom plate 7. In this case, after sucking outside air from the opening 9 provided in the bottom plate 7 and cooling the condenser 12, the compressor 11 is cooled and exhausted from the opening 9 provided in the left side plate 4 and the back plate 3. become.

In this case, since it is relatively close to the storage chamber 10 on the front side of the machine room 8, it is considered that the effect of heat generation is reduced if the inlet side of the capacitor 12 is separated as much as possible. Further, since the heat insulating partition wall 10b exists on the upper side of the capacitor 12 in the figure, it is considered that it is difficult to secure an installation space on the upper side of the capacitor 12 in the figure.

In consideration of these points, for example, in the case of the capacitor 12A, as shown in FIG. 19A, the header 13 is substantially perpendicular to the direction of gravity, and the inlet-side header 13 is on the front side in the figure. It is preferable that the inlet side connecting pipe 16a and the outlet side connecting pipe 16b are provided so as to extend in the Z + direction (upper side in the figure) as indicated by solid lines. FIG. 19 schematically shows the state seen from the arrow XIX in FIG. 18, and in FIG. 19A, the direction of the header 13 is schematically shown by a broken line. In addition, in order to indicate whether the header 13 is the front side or the back side in the drawing, the connection pipe 16 is schematically shown in a mode connected to the header 13 indicated by a broken line.

By installing in such a state, the influence of heat generation on the storage chamber 10 on the front side of the machine room 8 can be suppressed. In addition, since the air that has cooled the inlet-side header 13 whose temperature is relatively high is exhausted to the outside, the influence of heat generation on other components in the machine chamber 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 inclined slightly upward from the header 13 provided with the outlet side connecting pipe 16b (FIG. 13 ( d)).

Further, the cooling fan 20 is provided in a space (S) formed by the inlet side connecting pipe 16a and the outlet side connecting pipe 16b. Thereby, space saving can be achieved. Further, it is considered that the connection of the pipe 17 is facilitated from above the capacitor 12. That is, in the case of the capacitor 12A, the arrangement as shown in FIG.

For example, in the case of the capacitor 12B, as shown in FIG. 19B, the header 13 is installed so as to be substantially perpendicular to the direction of gravity, and the inlet-side connecting pipe 16a and the outlet are connected to the header 13 on the front side in the figure. The side connection pipe 16b is preferably provided so as to extend in the Z + direction. By installing in such a state, the installation space can be secured without hindering the flow of the refrigerant while suppressing the influence on the storage chamber 10 due to the heat generated from the capacitor 12, so that the pipe 17 can be easily connected. Thus, the same effect as the above-described capacitor 12A can be obtained, such as saving space. That is, in the case of the capacitor 12B, it is considered that the installation direction and structure as shown in FIG.

Further, for example, in the case of the capacitor 12C, as shown in FIG. 19C, the inlet side connecting pipe 16a is connected to the header 13 on the right side of the main body 12a, that is, the side away from the storage chamber 10, and the main body 12a. The outlet side connecting pipe 16b is preferably provided on the header 13 on the left side of the portion 12a, that is, on the side closer to the storage chamber 10, so as to extend in the Z + direction. By installing in such a state, the installation space can be secured without hindering the flow of the refrigerant while suppressing the influence on the storage chamber 10 due to the heat generated from the capacitor 12, so that the pipe 17 can be easily connected. Thus, the same effect as the above-described capacitor 12A can be obtained, such as saving space. That is, in the case of the capacitor 12C, it is considered that the installation direction and structure as shown in FIG.

For example, in the case of the capacitor 12D, as shown in FIG. 19 (d), the inlet side connecting pipe 16a and the outlet side connecting pipe are connected to the header 13 on the near side of the main body 12a, that is, the side away from the storage chamber 10. 16b is preferably provided so as to extend in the Z + direction. By installing in such a state, the installation space can be secured without hindering the flow of the refrigerant while suppressing the influence on the storage chamber 10 due to the heat generated from the capacitor 12, so that the pipe 17 can be easily connected. Thus, the same effect as the above-described capacitor 12A can be obtained, such as saving space. That is, in the case of the capacitor 12D, it is considered that the installation direction and structure as shown in FIG.

<Installation example D>
Hereinafter, the installation example D will be described with reference to FIGS. 20 and 21. FIG.
FIG. 20 shows an installation example D, schematically showing a state in which the machine room 8 is viewed from the side. In this installation example D, the capacitor 12 is installed on the side substantially close to the upper end of the heat insulating partition wall 10b so that the main body 12a is along the inclined portion of the heat insulating partition wall 10b. Although illustration is omitted, it is assumed that the capacitor 12 is installed on the side close to the right side plate 5. In this case, the condenser 12 is cooled by sucking outside air from the opening 9 provided in the bottom plate 7.

In this case, the capacitor 12 has a constant distance between the header 13 and the storage chamber 10 in front of the machine room 8, while the distance between the header 13 and the storage chamber 10 above the machine room 8 depends on the position of the header 13. Different. Therefore, in the case of such installation, it is considered that the influence of heat generation on the storage chamber 10 can be suppressed by providing the header 13 below. On the other hand, if the header 13 on the inlet side is disposed 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.

In consideration of these points, for example, in the case of the capacitor 12A, as shown in FIG. 21 (a), the header 13 is arranged along the heat insulating partition wall 10b, and on the right side of the main body 12a. The inlet-side connecting pipe 16a is provided in the header 13 on the side close to the side plate so as to extend in the Z + direction (generally on the near side in the figure), and the outlet-side connecting pipe 16b is provided on the header 13 on the left side in the figure of the main body 12a. It is preferably provided so as to extend in the Z + direction shown in FIG. FIG. 21 schematically shows a state viewed from the back side of the refrigerator 1.

By installing in such a state, the influence of heat generation on the storage chamber 10 above the machine room 8 can be suppressed. At this time, if the capacitor 12A is viewed from the side, the state is substantially as shown in FIG. 19A, and the space (S) in which the cooling fan 20 is formed by the inlet side connecting pipe 16a and the outlet side connecting pipe 16b. ). Thereby, space saving can be achieved. That is, in the case of the capacitor 12A, the arrangement shown in FIG. 21A is considered suitable.

Further, for example, in the case of the capacitor 12B, as shown in FIG. 21B, the header 13 is installed along the heat insulating partition wall 10b, and the inlet side connecting pipe 16a and the outlet are connected to the header 13 on the right side in the figure. The side connection pipe 16b is preferably provided so as to extend in the Z + direction. Also in this case, the cooling fan 20 is preferably disposed in the space (S) formed by the inlet side connecting pipe 16a and the outlet side connecting pipe 16b.

For example, in the case of the capacitor 12C, as shown in FIG. 21 (c), the inlet side connecting pipe 16a is provided on the header 13 on the right side of the main body 12a and the header on the left of the main body 12a. 13 is preferably provided with an outlet side connection pipe 16b extending in the Z + direction. By installing in such a state, it is possible to save the space without hindering the flow of the refrigerant while suppressing the influence on the storage chamber 10 due to the heat generated from the capacitor 12, and similar to the above-described capacitor 12A. An effect can be obtained. That is, in the case of the capacitor 12C, it is considered that the installation direction and structure as shown in FIG.

For example, in the case of the capacitor 12D, as shown in FIG. 21 (d), the inlet side connecting pipe 16a is provided in the header 13 on the right side of the main body 12a so as to extend in the Z + direction, and the main body 12a is illustrated. It is preferable that the right side header 13 is provided so as to extend in the Z + direction in which the outlet side connecting pipe 16b is shown by a solid line or in the X− direction (left side in the figure) shown by a broken line. By installing in such a state, it is possible to save the space without hindering the flow of the refrigerant while suppressing the influence on the storage chamber 10 due to the heat generated from the capacitor 12, and similar to the above-described capacitor 12A. An effect can be obtained. That is, in the case of the capacitor 12D, it is considered that the installation direction and structure as shown in FIG.

In the installation example D, it is assumed that the capacitor 12 is close to the right side plate 5. However, when the capacitor 12 is close to the left side plate 4, the inlet side connecting pipe 16a and What is necessary is just to set the direction of the exit side connection pipe 16b.
Thus, the refrigerator 1 of the present embodiment employs the capacitors 12 having different structures depending on the installation position in the machine room 8.

According to the embodiment described above, the following effects can be obtained.
The refrigerator 1 is a multi-flow type having a flat tube 14 that is formed in a flat shape and in which a plurality of flow paths through which a refrigerant flows is formed, and a header 13 that serves as an inlet or an outlet for the refrigerant into the flat tube 14. Heat exchange of the refrigeration cycle 21 is performed using the condenser 12. Thereby, since the multiflow type | mold capacitor | condenser 12 is small and highly efficient, it can be installed in the machine room 8 reduced in size. Therefore, the necessary heat radiation amount can be ensured by the capacitor 12 installed in the machine room 8.

In addition, the multi-flow type capacitor 12 can be expected to have a heat dissipation effect that is two to three times that of the same volume, so that the heat dissipating pipe that has been provided in the past is not necessary, and the structure can be simplified. The manufacturing cost can be reduced. In addition, heat leak to the storage is reduced, which can contribute to energy saving.

The capacitor 12 may be arranged so that the direction in which the flat tube 14 extends is horizontal to the installation surface of the refrigerator 1, or the direction in which the flat tube 14 extends is perpendicular to the installation surface. The main body portion 12a may be disposed so as to be horizontal with respect to the installation surface, or the main body portion 12a may be disposed so as to be inclined with respect to the installation surface. Also good. That is, the installation direction of the capacitor 12 can be set according to the shape of the machine room 8 and the balance with other components in the machine room 8. Thereby, the freedom degree of installation can be improved.

When the condenser 12 is installed, the refrigerant flows from the upper side. Thereby, since the refrigerant | coolant which was condensed and became the liquid state moves below with gravity, a refrigerant | coolant can be efficiently liquefied, ie, the performance of the refrigerating cycle 21 can be improved.
The condenser 12 is arranged such that the inlet side of the refrigerant is away from the storage chamber 10. Thereby, it can suppress that the storage room 10 or the heat insulation partition wall 10b is heated by the heat_generation | fever from the capacitor | condenser 12, and can reduce heat leak.

The capacitor 12 is disposed in a machine room 8 provided in the main body 2 of the refrigerator 1. The machine room 8 is provided with an opening 9 for cooling the compressor 11 so that the outside air can be easily introduced and discharged. For this reason, by providing the capacitor 12 in the machine room 8, the capacitor 12 can be cooled, and the air heated by cooling the capacitor 12 can be efficiently discharged.

The condenser 12 has a connecting pipe 16 which is a refrigerant inlet or outlet and is formed in a length projecting in the X direction, the Y direction or the Z direction from the main body portion 12a where the flat tube 14 is disposed. Yes. The cooling fan 20 that cools the condenser 12 is smaller than the outer shape of the main body portion 12 a and thinner than the protruding length of the connection pipe 16, and between the main body portion 12 a and the tip of the connection pipe 16. It is arranged in a space (S. space) formed.

As a result, the cooling fan 20 can be installed in a space that is always required when the capacitor 12 is installed, and space saving can be achieved.
In addition, the multi-flow capacitor 12 is small and high performance as described above, and can effectively exchange heat even with a relatively small air volume, so that the space (S) formed by the main body 12a and the connecting pipe 16 is sufficient. Even the cooling fan 20 that fits inside can be sufficiently cooled.

(Other embodiments)
The present invention is not limited to those exemplified in the above-described embodiment, and can be arbitrarily modified or expanded as follows, for example, without departing from the scope thereof.

In the above-described embodiment, the example in which one condenser 12 is cooled by the cooling fan 20 has been shown. However, for example, as shown in FIG. 22, two or more capacitors 12 may be cooled by one cooling fan 20. In this case, for example, as shown in FIG. 22A, the condenser 12 is disposed obliquely with respect to the air blowing surface of the cooling fan 20 so that the air blown from the cooling fan 20 strikes each capacitor 12 as indicated by an arrow Y. May be. Further, as shown in FIG. 22 (b), the condenser 12 may be disposed so as to overlap the air blowing surface, and the air blown from the cooling fan 20 may hit each condenser 12. Moreover, as shown in FIG.22 (c), you may arrange | position the some capacitor | condenser 12 side by side on a ventilation surface.

By providing a plurality of capacitors 12 in this way, the capacity of the refrigeration cycle 21 can be improved, and by cooling the plurality of capacitors 12 with one cooling fan 20, space saving can be achieved. . In this case, a parallel type or a meandering type may be provided or mixed.

In the embodiment, the capacitor 12 having one main body 12a is illustrated, but for example, a capacitor 12 having a plurality of main bodies 12a may be used as shown in FIG. Thereby, the capacity | capacitance of the refrigerating cycle 21 can be improved, without causing the excessive enlargement of the capacitor | condenser 12. FIG. As a result, the surface area of the capacitor 12 can be increased, or the capacitor 12 can be thinned, and the space occupied by the capacitor 12 can be reduced. In addition, the heat dissipation efficiency can be increased.

Note that although two main body portions 12a are shown in FIG. 23, three or more main body portions 12a may be included. In addition, the main body portions 12a may be provided with an angle instead of being folded as shown in FIG. Moreover, the some main-body part 12a may be connected in series, and may be connected in parallel.

Although the example which cools the capacitor | condenser 12 with the cooling fan 20 was shown in embodiment, it is good also as a structure which dripped defrost water (W) from the upper direction of the capacitor | condenser 12, as shown, for example in FIG. In addition, defrost water is water generated when frost adhering to a cooler (not shown) is melted. Thereby, the capacitor | condenser 12 can be efficiently cooled with defrost water.
At this time, if the direction of the condenser 12 is set so that the flat tube 14 follows the direction of gravity, the defrost water is promoted to flow down by the gravity through the flat tube 14, and cooling water does not accumulate in the radiating fins 15. It can be cooled efficiently.

In this case, the defrosting water may be dripped onto the main body 12a from the front, that is, from the Z-axis direction in the embodiment. Moreover, it is good also as a structure which always dripping defrost water (W), and good also as a structure which dripping defrost water (W) regularly. Thereby, clogging of the radiation fin 15 due to dust or the like can be prevented.

The configuration of the refrigerator 1 exemplified in the embodiment is an example, and the function and arrangement may be different, for example, the number of storage chambers 10 may be different, or a freezing chamber may be provided at the bottom. Further, for example, FIG. 2 and the like schematically show the configuration and structure. For example, the size, installation location, etc. of the compressor 11, the condenser, the cooling fan 20, the opening 9 and the like are not necessarily in the relationship shown in the figure. Also good.

Moreover, 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 and the arrangement in the main body 2 are not limited to those exemplified in the embodiment. In the case of FIG. 25, the capacitor 12 is installed as shown in FIG. 17A when viewed from the left side plate 4 side with the header 13 on the inlet side facing the upper part and the header 13 on the outlet side facing the lower part. By making it become suitable, while being able to suppress the influence on the storage chamber 10, space saving can be achieved.

In addition, as shown in FIG. 27, between the capacitor 12 and the heat insulating partition wall 10b between the capacitor 12 and the wall portion of the installation location where the capacitor 12 is provided, for example, the heat insulating partition wall 10b of the machine room 8. A heat insulating member 30 that closes at least a part of the space or the space may be provided. Thereby, for example, when it is necessary to arrange the inlet side connecting pipe 16a having a relatively high temperature on the heat insulating partition wall 10b side due to piping, the transfer of heat from the capacitor 12 to the storage chamber 10 is suppressed. Can do. The heat insulating member 30 may be provided in the space above the capacitor 12.

In this way, by providing the heat insulating member 30 in such a manner as to close the space between the capacitor 12 and the heat insulating partition wall 10b, it is possible to suppress the inflow of air into the space between the capacitor 12 and the heat insulating partition wall 10b. it can. In other words, it is possible to effectively concentrate the air blown from the cooling fan 20 on the capacitor 12. Thereby, the capacitor | condenser 12 can be cooled efficiently.

Further, as shown in FIG. 28, the capacitor 12 may be disposed in contact with the wall portion of the installation place where the capacitor 12 is provided, for example, the heat insulating partition wall 10b of the machine room 8. In this case, it is desirable to arrange the outlet side connecting pipe 16b having a relatively low temperature on the heat insulating partition wall 10b side. Thereby, the transfer of heat from the capacitor 12 to the storage chamber 10 can be suppressed. Further, by disposing the capacitor 12 in contact with the heat insulating partition wall 10b, it is possible to suppress the inflow of air into the space between the capacitor 12 and the heat insulating partition wall 10b, and to send air from the cooling fan 20 Is effectively concentrated on the capacitor 12, so that the capacitor 12 can be efficiently cooled. In this case, you may provide the above-mentioned heat insulation member 30 other than the site | part which is contacting.

In addition, when the machine room 8 is provided in the upper part of the main body 2 as shown in FIG. 25, the top and bottom of the capacitor 12 are arranged on the ceiling side wall and the inside wall part as shown in FIG. You may arrange | position in the state which contacted. In this case, by disposing the outlet side connecting pipe 16b having a relatively low temperature inside the warehouse, it is possible to suppress the transfer of heat to the storage chamber 10, and to connect the inlet side connecting pipe 16a having a relatively high temperature to the ceiling. By making contact with the side, heat dissipation from the handcuff side can be promoted.

In each embodiment, the capacitor 12 is illustrated in which the main body 12a is formed in a substantially thin rectangular parallelepiped shape, but the main body 12a may have other shapes.
For example, as shown in FIG. 30, in the parallel capacitor 12, a part of the main body 12 a is inclined such that the inlet-side header 13 is obliquely arranged by changing the length of the flat tube 14. It may be formed in any shape. Alternatively, as shown in FIG. 31, in the meandering capacitor 12, by changing the length when the flat tube 14 is folded, that is, the turn length, the main body portion 12a is formed in a shape in which a part thereof is inclined. May be.

If at least a part of the main body portion 12a is an inclined capacitor 12, for example, as shown in FIG. 32, the inclined portion is placed along the wall portion of the machine room 8, thereby reducing the space in the machine room 8. It can be used effectively. In other words, dead space can be reduced, and for example, the storage chamber 10 can be enlarged.

Further, as shown in FIG. 33, in the folding type capacitor 12, the header 13 on the left upper side in the figure serving as the inlet side and the header 13 on the lower left side in the figure serving as the outlet are separated from each other. By changing the length of the flat tube 14 between the header 13 on the right side of the figure, the main end 12a may be formed in a step shape. Alternatively, as shown in FIG. 34, in the meandering capacitor 12, the end 12a may be formed in a stepped shape by setting the turn length of the flat tube 14 to, for example, two stages. Or

If the capacitor 12 has a step in at least a part of the main body 12a, the installation space can be effectively utilized, for example, other mechanical parts and piping parts (not shown) can be avoided. Further, the main body portion 12a may have a shape having both an inclination and a step, or may be a deformed shape other than a rectangular parallelepiped shape, such as a substantially U-shaped shape or a U-shaped shape, which is partially recessed. Good. Even in the case of such an irregular shape, the installation space can be effectively utilized, such as avoiding other machine parts and piping parts.

In the embodiment, an example in which an axial fan is adopted as the cooling fan 20 is shown, but a centrifugal fan may be adopted as the cooling fan. In the case of a centrifugal fan, air flows from the center of the cooling fan 20 toward the radially outer side. Thus, for example, as shown in FIG. 35, when a plurality of capacitors 12 are provided, the capacitors 12 are arranged side by side in the circumferential direction so as to face the cooling fan 20. Can be cooled.

In this case, as shown in FIG. 36, the main body 12a of the capacitor 12 may be formed in a curved shape along the outer shape of the cooling fan 20, in this case, an arch shape. Thereby, the capacitor | condenser 12 can be efficiently cooled with the flow of the air which goes to radial direction outer side from the center of the cooling fan 20. FIG. Further, by elongating the main body portion 12a in the circumferential direction, the height dimension of the capacitor 12 can be reduced, and space saving can be achieved.

Each embodiment is 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, replacements, and changes can be made without departing from the scope of the invention. This embodiment and its modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

Claims

Refrigeration using a multi-flow condenser having a flat tube formed with a plurality of flow paths through which refrigerant flows and a header serving as an inlet or outlet for the refrigerant into the flat tube. A refrigerator that performs heat exchange of a cycle.
2. The refrigerator according to claim 1, wherein the condenser is arranged so that a direction in which the flat tube extends is horizontal to an installation surface of the refrigerator.
2. The refrigerator according to claim 1, wherein the condenser is disposed so that a direction in which the flat tube extends is perpendicular to an installation surface of the refrigerator.
The refrigerator according to any one of claims 1 to 3, wherein the condenser is disposed so as to be horizontal with respect to a surface on which the refrigerator is installed.
The refrigerator according to any one of claims 1 to 3, wherein the condenser is disposed so as to be inclined with respect to an installation surface of the refrigerator.
The refrigerator according to any one of claims 1 to 5, wherein the condenser has a plurality of main body portions that are portions where the flat tubes are arranged.
The refrigerator according to claim 6, wherein the capacitor includes a plurality of the main body portions in parallel.
The refrigerator according to claim 6, wherein the capacitor has a plurality of the main body portions in series.
The refrigerator according to any one of claims 6 to 8, wherein the capacitor has the body portion folded.
The refrigerator according to any one of claims 1 to 9, wherein a refrigerant is allowed to flow from an upper side of the capacitor in a state where the capacitor is installed.
The refrigerator according to any one of claims 1 to 10, wherein the condenser is arranged in a direction in which an inlet side of the refrigerant is separated from the storage chamber.
The refrigerator according to any one of claims 1 to 11, wherein the condenser is disposed in a machine room provided in a main body of the refrigerator.
The refrigerator according to any one of claims 1 to 12, wherein the capacitor is arranged on an upper side in the main body of the refrigerator.
A cooling fan for cooling the condenser;
The capacitor is formed in a length protruding from the main body portion where the flat tube is disposed, and has a connection pipe connected to an external pipe,
The cooling fan is formed smaller than the outer shape of the main body and thinner than the protruding length of the connection pipe, and is disposed in a space formed between the main body and the tip of the connection pipe. The refrigerator according to any one of claims 1 to 13, wherein the refrigerator is provided.
The refrigerator according to any one of claims 1 to 14, wherein defrost water is dropped from above the condenser.
The refrigerator according to claim 15, wherein the defrosted water is dropped periodically.
The capacitor has a connecting pipe that is formed in a length protruding from a main body portion where the flat tube is disposed and connected to an external pipe,
The refrigerator according to any one of claims 1 to 16, wherein the connection pipe extends in parallel to the flat tube.
The capacitor has a connecting pipe that is formed in a length protruding from a main body portion where the flat tube is disposed and connected to an external pipe,
The refrigerator according to any one of claims 1 to 16, wherein the connection pipe extends perpendicularly to the flat pipe.
The capacitor has connection pipes formed on a length protruding from a main body portion where the flat tube is arranged and connected to an external pipe on the refrigerant inlet side and the outlet side, respectively.
17. The connection pipe according to claim 1, wherein the connection pipe extends in parallel or perpendicular to the flat pipe, and has different directions with respect to the flat pipe on an inlet side and an outlet side. Refrigerator.
The capacitor has connection pipes formed on a length protruding from a main body part where the flat tube is disposed and connected to an external pipe on the refrigerant inlet side and the outlet side, respectively.
The refrigerator according to any one of claims 1 to 19, wherein the connecting pipe has different directions of protruding from the main body on the inlet side and the outlet side.
A cooling fan for cooling the condenser;
The capacitor has a connecting pipe that is formed in a length that protrudes from a main body portion where the flat tube is disposed and is connected to an external pipe.
21. The refrigerator according to any one of claims 1 to 20, wherein the connection pipe extends in parallel with a blowing direction of the cooling fan.
The heat insulating member is provided between the capacitor and a wall portion of the installation place where the capacitor is provided, and includes a heat insulating member that blocks at least a part of a space between the capacitor and the wall portion. The refrigerator according to any one of 1 to 21.
The capacitor is a parallel type or a folded type in which a plurality of the flat tubes are arranged in parallel, and a main body portion which is a portion where the flat tubes are arranged by changing the length of the flat tubes 23. The refrigerator according to any one of claims 1 to 22, wherein the refrigerator is formed in a step shape, an inclined shape, or a shape including both a step and an inclination.
The capacitor is a meandering type in which one flat tube is bent in the thickness direction and connected from the inlet to the outlet. By changing the turn length of the flat tube, the flat tube is 23. The refrigerator according to any one of claims 1 to 22, wherein the main body portion, which is a portion to be disposed, is formed in a stepped shape, an inclined shape, or a shape including both a stepped portion and an inclined portion.
A cooling fan for cooling the condenser;
The refrigerator according to any one of claims 1 to 24, wherein the fan is a centrifugal fan.
26. The refrigerator according to claim 25, wherein the capacitor is formed in a curved shape along the outer shape of the fan.