JP2002168473A - Heat-exchanging equipment and air conditioner having this heat exchanging equipment built-in - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide heat-exchanging equipment which is equipped with ducts capable of roughly equalizing the flow rates of a refrigerant to be distributed to the plural ducts of itself. SOLUTION: In heat-exchanging equipment where a plurality of fin tube heat exchangers are combined in such form that the cross section may be roughly V-shaped, a distributor and a collector for a refrigerator are arranged together on one side of itself, and the plural distributing pipes from this distributor and the plural collecting pipes from the collector are connected to one side of the heat-exchanging equipment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger having a substantially inverted V-shaped cross section and an air conditioner incorporating the heat exchanger.

[0002]

2. Description of the Related Art Conventionally, in an indoor unit of a separation type air conditioner, an air suction port has been provided on a front surface and an upper surface of the indoor unit to secure a large suction area. Japanese Patent Application Laid-Open No. H11-83242 discloses an example of such a heat exchange device housed in an indoor unit. In the structure of the heat exchange device disclosed in this publication, a plurality of fin tube heat exchangers are combined, and the inlet side pipeline to the heat exchange device is branched into two.

[0003]

In the fin tube type heat exchanger, when the cooling capacity is increased, the circulation amount of the refrigerant is increased, so that the pressure loss in the pipe of the heat exchange device is increased, so that the compressor has an excessive amount. There was a load.

[0004] For this reason, it has been conceived to reduce the pressure loss in the pipes in the heat exchange apparatus by distributing the inside of the heat exchange apparatus to a plurality of pipes using a distributor. In this case, it is necessary to make the flow rate of each distribution pipe substantially uniform in order to improve the heat transfer performance.

Therefore, the present invention has been made in consideration of the above points,
It is an object of the present invention to provide a heat exchange device provided with a conduit that can make the flow rate of the refrigerant distributed to a plurality of conduits of the heat exchange device substantially uniform.

[0006]

According to a first aspect of the present invention, there is provided a heat exchanger in which a plurality of fin tube heat exchangers are combined so as to have a substantially inverted V-shaped cross section. A refrigerant distributor and a collector are collectively arranged on one side of the heat exchange device, and a plurality of distribution pipes from the distributor and a plurality of collection tubes from the collector are connected to one side of the heat exchange device. It is characterized by having been done.

According to a second aspect of the present invention, the fin tube heat exchanger on the front side of the heat exchanger is bent in a substantially rectangular shape, and the fin tube heat exchanger on the rear side of the heat exchanger in its height dimension. It is characterized in that it is set to be larger than.

The invention according to claim 3 is characterized in that the distributor is arranged near the fin tube heat exchanger on the front side of the heat exchanger.

The invention according to claim 4 is characterized in that the collector is arranged along a substantially inverted V-shaped cross section of the heat exchanger.

The invention according to claim 5 is characterized in that the distribution pipe is connected to a pipe on the windward side of the air path of the heat exchange device.

[0011] The invention according to claim 6 is characterized in that the collecting pipe is connected to a pipe on the leeward side of the air path of the heat exchange device.

The invention according to claim 7 is characterized in that the distribution pipes have the same outer diameter.

The invention according to claim 8 is characterized in that the collecting pipes have the same outer diameter.

The invention according to claim 9 is characterized in that the distribution pipe has an outer diameter smaller than the diameter of the pipe of the fin tube heat exchanger.

According to a tenth aspect of the present invention, the collecting pipe has an outer diameter smaller than that of the fin tube heat exchanger.

The invention according to claim 11 is characterized in that the distribution pipe has an outer diameter smaller than that of the collecting pipe.

According to a twelfth aspect of the present invention, a blower fan is disposed in a space inside the heat exchange device having a substantially inverted V-shaped cross section.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an explanatory cross-sectional view of an air conditioner in which a heat exchanger according to an embodiment of the present invention is housed.

In FIG. 1, reference numeral 1 denotes an indoor unit of an air conditioner according to an embodiment of the present invention, which is connected to an outdoor unit (not shown) and piping between units (not shown) to constitute an air conditioner. .

The case of the indoor unit 1 includes a front case 20 on the front side and a rear case 10 on the back side.
The front case 20 has a suction port 21 on the front surface and the upper surface.

Reference numeral 40 denotes a heat exchange device for cooling indoor air, which functions as a cooler during cooling / dehumidifying operation by passing a refrigerant through the inside.

In the heat exchanger 40, the fin tube heat exchanger (first heat exchanger 41) on the front side and the fin tube heat exchanger (second heat exchanger 42) on the rear side have a substantially inverted V-shaped cross section. Are combined.

The first heat exchanger 41 has a notch 41C provided at a substantially central portion thereof, which is opened and bent in a U-shape. The first heat exchanger 41 is provided in front of the blower fan 50 so as to face the air inlet 21. The second heat exchanger 42 is disposed to face the first heat exchanger 41 so that the upper end thereof is in contact with and sandwiches the blower fan 50. Further, the first heat exchanger 41 is set to have a height dimension larger than that of the second heat exchanger 42 so that the first heat exchanger 4
1, the heat exchange rate is improved.

The first heat exchanger 41 and the second heat exchanger 42 are formed in U-shaped pipes 41A, 41B, 42A, 42.
B and a large number of fins 41D fitted in a skewered manner in this pipeline,
42D, the liquid refrigerant flowing in the pipeline evaporates and the cold heat is transferred to the fins, and the room is air-conditioned by heat exchange between the fins and the room air.

The blower fan 50 is arranged in a space inside the heat exchange device 40 having a substantially inverted V-shaped cross section, guides indoor air to the heat exchange device 40, and blows out the heat exchanged air there again.

Reference numeral 66 denotes a cool air outlet which is accelerated by the blower fan 50 and blown back into the room.

Here, the heat exchange device 40 of the present embodiment will be described with reference to FIGS. FIG. 2 is an explanatory right side view of the heat exchange device. FIG. 3 is an explanatory front view of the heat exchange device. FIG. 4 is an explanatory left side view of the heat exchange device.
FIG. 5 is an explanatory diagram of the piping of the heat exchange device.

As shown in FIG. 2 and FIG.
The distributor 43 and the collector 46 of the refrigerant are collectively arranged on one side (right side) of the refrigerant, and a plurality of distribution pipes 4 from the distributor 43 are arranged.
4 and a plurality of collecting pipes 47 from the collecting unit 46 are connected to a plurality of conduits 41A, 41B, 42A, 4A on the right side of the heat exchange device 40.
2B.

The distributor 43 is vertically arranged near the first heat exchanger 41 with the connection port 43A to the distribution pipe 44 facing upward, and the collector 46 is formed in a substantially inverted V-shaped cross section of the heat exchange device 40. It is arranged so as to be curved along.

The distributor 43 has a substantially cylindrical shape, and has a plurality of connection ports 43A with the distribution pipe 44 at one end on the circumference thereof, and a pipe between the units which is narrowed at the other end so as to match the outside diameter. It has a connection port 43B for an auxiliary pipe 45 connected to the power supply.

The collector 46 has a substantially cylindrical shape, is disposed so as to be curved substantially along the substantially inverted V-shaped cross section of the heat exchange device 40, one end thereof is closed, and the collecting pipe 47
And a connection port 46B with an auxiliary pipe 48 connected to the inter-unit pipe at the other end.

The plurality of distribution pipes 44 branched from the connection port 43A of the distributor 43 are connected to the plurality of pipes 41A, 42A on the windward side of the air path of the heat exchange device 40. The plurality of conduits 41A and 42A are bent several times in a U-shape and connected to the plurality of conduits 41B and 42B on the leeward side of the air passage of the heat exchange device 40. The plurality of collecting pipes 47 branched from the connection port 46A of the collecting unit 46 are connected to the pipe lines 41B and 42B on the leeward side of the air path of the heat exchange device 40. In this way, the liquid refrigerant flows into the plurality of pipelines 41A and 42A on the windward side of the airflow path of the heat exchange device 40, and evaporates while the liquid refrigerant evaporates. The fins 41D and 42D of the heat exchange device 40 flow uniformly to the fins 41B and 42D to prevent the liquid refrigerant from being dried due to the loss of the liquid refrigerant in a part of the pipelines 41B and 42B of the heat exchange device 40, and the compact heat exchange. An apparatus can be provided.

The plurality of distribution pipes 44 have the same outer diameter and have pipe lines 41A, 4A and 4B between the first heat exchanger 41 and the second heat exchanger 42.
The diameter is smaller than 1B, 42A and 42B. Further, the plurality of collecting pipes 47 have the same outer diameter and are smaller in diameter than the pipe lines 41A, 41B, 42A, and 42B between the first heat exchanger 41 and the second heat exchanger. The plurality of distribution pipes 44 have an outer diameter smaller than that of the plurality of collecting pipes 47. By doing so, a plurality of pipelines 41A, 41A are formed in the heat exchange device 40.
B, 42A, and 42B to reduce the pressure loss in the pipes in the heat exchange apparatus, and the liquid refrigerant flows into the plurality of pipes of the heat exchange apparatus 40 evenly and evaporates. The temperature of the fins 41D and 42D is kept uniform to prevent a part of the pipeline of the heat exchange device 40 from losing the liquid refrigerant and becoming a dry state.

In FIG. 5, the liquid refrigerant is branched from the auxiliary pipe 45 to a plurality of distribution pipes 44 by a distributor 43 as shown by arrows, and is transferred to a plurality of pipes 41A, 41B, 42 of the heat exchanger 40.
A and 42B evaporate and collect from a plurality of collecting pipes 47 into a collecting unit 46 and flow as a gas refrigerant to an auxiliary pipe 48. As described above, the inside of the heat exchange device 40 is branched into a plurality of conduits by the distributor 43 and the collector 46 and the like, so that the pressure loss of the conduits in the heat exchange device is reduced, and the plurality of conduits 41A,
The flow rates of the refrigerant flowing in the insides 41B, 42A, 42B can be made substantially uniform.

The present invention is not limited to the above-described embodiment, but can be variously modified without departing from the gist of the present invention.

[0036]

As described above, according to the first aspect of the present invention, there is provided a heat exchanger in which a plurality of fin tube heat exchangers are combined so as to have a substantially inverted V-shaped cross section. A distributor and a collector of the refrigerant are collectively arranged on one side of the heat exchanger, and a plurality of distribution pipes from the distributor and a plurality of collection pipes from the collector are connected to one side of the heat exchange device. This makes it possible to provide a heat exchange device that is more compact than a heat exchange device in which the distributor and the collector are arranged separately.

According to the second aspect of the present invention, the fin tube heat exchanger on the front side of the heat exchanger is bent in a substantially rectangular shape, and the fin tube heat exchanger on the rear side of the heat exchanger in its height dimension. By setting the size larger than that of the heat exchanger, the heat exchange rate in the front fin tube heat exchanger can be improved and the flow rate of the refrigerant distributed to the plurality of heat exchangers can be substantially uniform. Can be provided.

According to the third aspect of the present invention, since the distributor is disposed near the fin tube heat exchanger on the front side of the heat exchanger, the distribution pipe from the distributor to the heat exchanger is provided. Can provide a heat exchange device that is easy to handle.

According to the fourth aspect of the present invention, since the collector is disposed along the substantially inverted V-shaped cross section of the heat exchange device, the refrigerant collected in the plurality of pipes of the heat exchange device Can be provided with a heat exchange device provided with a pipeline capable of making the flow rate of the heat exchanger substantially uniform.

According to the fifth aspect of the present invention, since the distribution pipe is connected to the pipe on the windward side of the air path of the heat exchange apparatus, the refrigerant distributed to the plurality of pipes of the heat exchange apparatus. Can be provided with a heat exchange device provided with a pipeline capable of making the flow rate of the heat exchanger substantially uniform.

According to the invention of claim 6, since the collecting pipe is connected to the leeward side pipe of the air path of the heat exchange apparatus, the refrigerant collected in the plurality of pipes of the heat exchange apparatus Can be provided with a heat exchange device provided with a pipeline capable of making the flow rate of the heat exchanger substantially uniform.

According to the seventh aspect of the present invention, since the distribution pipe has the same outer diameter, the distribution pipe is capable of making the flow rate of the refrigerant distributed to the plurality of pipes of the heat exchange device substantially uniform. Provided with a heat exchange device.

According to the eighth aspect of the present invention, since the collecting pipes have the same outer diameter, the pipes that can make the flow rate of the refrigerant collected in the plurality of pipes of the heat exchange device substantially uniform are provided. Provided with a heat exchange device.

According to the ninth aspect of the present invention, since the distribution pipe has an outer diameter smaller than that of the fin tube heat exchanger, the refrigerant distributed to the plurality of pipes of the heat exchanger is provided. Can be provided with a heat exchange device provided with a pipeline capable of making the flow rate of the heat exchanger substantially uniform.

According to the tenth aspect of the present invention, since the collecting pipe has an outer diameter smaller than the diameter of the pipe of the fin tube heat exchanger, the refrigerant collected in the plurality of pipes of the heat exchanger is formed. Can be provided with a heat exchange device provided with a pipeline capable of making the flow rate of the heat exchanger substantially uniform.

According to the eleventh aspect of the present invention, the distribution pipe has an outer diameter smaller than that of the collecting pipe.
It is possible to provide a heat exchange device provided with a conduit that can make the flow rate of the refrigerant distributed to the plurality of conduits of the heat exchange device substantially uniform.

According to the twelfth aspect of the present invention, by arranging the blower fan in the space inside the heat exchange device having a substantially inverted V-shaped cross section, the refrigerant distributed to the plurality of pipes of the heat exchange device is reduced. It is possible to provide a compact air conditioner incorporating a heat exchange device having a pipe line capable of making the flow rate substantially uniform.

[Brief description of the drawings]

FIG. 1 is an explanatory cross-sectional view of an air conditioner in which a heat exchange device according to an embodiment of the present invention is housed.

FIG. 2 is an explanatory right side view of the heat exchange device.

FIG. 3 is an explanatory front view of the heat exchange device.

FIG. 4 is an explanatory left side view of the heat exchange device.

FIG. 5 is an explanatory diagram of piping of a heat exchange device.

[Explanation of symbols]

 Reference Signs List 1 indoor unit 20 front case 40 heat exchanger 41 first heat exchanger 41A, 41B, 42A, 42B pipeline 41D, 42D fin 42 second heat exchanger 43 distributor 44 minute pipe 45, 48 auxiliary pipe 46 collector 47 Collecting pipe

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masao Koseki 1 Otsukicho, Ashikaga, Tochigi Prefecture Sanyo Electric Air Conditioning Co., Ltd. (72) Inventor Takuya Kajita 1 Otsukicho, Ashikaga City, Tochigi Sanyo Electric Air Conditioning Co., Ltd. F-term (reference) 3L049 BB11 BB20 BC01 3L051 BE05 BE06 BF02

Claims (12)

[Claims] 1. A heat exchanger in which a plurality of fin tube heat exchangers are combined so as to have a substantially inverted V-shaped cross section, wherein a refrigerant distributor and a collector are integrated on one side of the heat exchanger. A plurality of distribution pipes from the distributor and a plurality of collection pipes from the collector are connected to one side of the heat exchange device. 2. The fin tube heat exchanger on the front side of the heat exchange device is bent in a substantially U-shape, and its height dimension is set larger than that of the fin tube heat exchanger on the rear side of the heat exchange device. The heat exchange device according to claim 1, wherein: 3. The heat exchange device according to claim 1, wherein the distributor is disposed near the fin tube heat exchanger on the front side of the heat exchange device. 4. The heat exchanger according to claim 1, wherein the collector is arranged along a substantially inverted V-shaped cross section of the heat exchanger. 5. The heat exchange apparatus according to claim 1, wherein the distribution pipe is connected to a pipe on the windward side of an air path of the heat exchange apparatus. 6. The heat exchange apparatus according to claim 1, wherein the collecting pipe is connected to a pipe on a leeward side of an air path of the heat exchange apparatus. 7. The heat exchanger according to claim 1, wherein the distribution pipes have the same outer diameter. 8. The heat exchanger according to claim 1, wherein the collecting pipes have the same outer diameter. 9. The heat exchange apparatus according to claim 1, wherein an outer diameter of the distribution pipe is smaller than a diameter of a pipe of the fin tube heat exchanger. 10. The heat exchanger according to claim 1, wherein the collecting pipe has an outer diameter smaller than a diameter of a pipe of the fin tube heat exchanger. 11. The heat exchange device according to claim 1, wherein the distribution pipe has an outer diameter smaller than that of the collecting pipe. 12. The air conditioner according to claim 1, wherein a blower fan is arranged in a space inside the heat exchange device having a substantially inverted V-shaped cross section.