WO2006001323A1

WO2006001323A1 - Air conditioner

Info

Publication number: WO2006001323A1
Application number: PCT/JP2005/011504
Authority: WO
Inventors: Yoshiaki Fukumura; Makoto Fujii
Original assignee: Daikin Industries, Ltd.
Priority date: 2004-06-24
Filing date: 2005-06-23
Publication date: 2006-01-05
Also published as: EP1780473A4; EP1780473B1; ES2397108T3; JP2006010178A; US20070227172A1; EP1780473A1; CN1969151A; JP3823988B2; CN100472140C

Abstract

An air conditioner capable of always keeping clean the internal structure of a heat exchanger. An air conditioner indoor unit (50) comprises partition members (30a) and (30b) partitioning a space (A) on the upstream side of the heat exchanger (2) from spaces (B) and (C) on both sides of the heat exchanger (2) in which refrigerant pipes (2a) and (40) are installed.

Description

Specification

Air conditioner

Technical field

[0001] The present invention relates to an air conditioner including a heat exchanger connected to a refrigerant pipe.

Background art

Conventionally, in order to keep the indoor space in a comfortable environment, there has been provided an air conditioner including a heat exchanger that respectively processes a sensible heat load and a latent heat load existing in the indoor space. For example, Patent Document 1 discloses a floor-mounted air conditioner indoor unit having a blower and a heat exchanger inside.

In this air conditioning indoor unit, the heat exchanger is arranged so as to cross the flow of air formed by the blower on the back side of the front panel, and the front side force is also inclined toward the back side and inclined downward. Installed inside. When the blower starts operation, an air flow is formed, and heat exchange is performed between the air passing through the heat exchange and the refrigerant flowing through the heat exchange. As a result, air conditioned by air can be supplied indoors. Patent Document 1: Japanese Patent Laid-Open No. 11 304177 (published on November 5, 1999)

Disclosure of the invention

Problems to be solved by the invention

[0003] However, the conventional air conditioning indoor unit has the following problems. That is, in the air conditioning indoor unit, heat exchange can be exposed by removing the front panel. However, since the refrigerant pipe connected to the side surface of the heat exchanger has a small diameter and a complicated structure, it has a problem that dirt easily collects and is difficult to clean. In addition, when water is applied to clean the heat exchanger, the water is also applied to the electrical parts arranged on the side of the heat exchanger, which may cause problems such as poor insulation. For this reason, even if the heat exchanger is dirty, it cannot be washed with water. Therefore, it is hard to say that the heat exchanger can always be kept clean. An object of the present invention is to provide an air conditioner capable of always keeping the internal configuration of a heat exchanger or the like clean.

Means for solving the problem

[0004] An air conditioner according to a first aspect of the present invention includes a blower, a heat exchanger, and a partition member. A ventilation part forms the flow of air. The heat exchanger is disposed in the air flow formed by the blower, and performs heat exchange between the refrigerant and the air. The partition member partitions the space on the upstream side of the heat exchanger in the air flow from the space in which the pipe through which the refrigerant flows is arranged.

Here, the space upstream of the heat exchanger and the space where the refrigerant pipe is arranged are partitioned by a partition member.

As a result, even if the space upstream of the heat exchanger is open, the refrigerant piping connected to the side of the heat exchanger is isolated from the external space! For this reason, it is possible to prevent the refrigerant piping connected to the side surface of the heat exchanger, which has a complicated structure and easily collects dirt, from being contaminated.

[0005] An air conditioner according to a second aspect of the present invention is the air conditioner of the first aspect, wherein the partition member is a space upstream of the heat exchanger in the air flow formed by the air blowing section, It is arranged to partition the space where wiring, piping, and electrical parts are arranged.

Here, in addition to the refrigerant pipe arrangement space, the partition member is arranged so as to partition the upstream space of the heat exchanger and the electric component arrangement space. As a result, even when the heat exchange is washed with water, it is possible to avoid the occurrence of problems such as poor insulation due to wet electrical components.

[0006] An air conditioner according to a third aspect of the invention is the air conditioner of the first or second aspect of the invention, further comprising a casing that accommodates the air supply section, the heat exchanger and the partition member therein. ing. The casing has an opening panel for exposing the upstream space of the heat exchanger in the air flow formed by the blower and performing maintenance of the heat exchanger.

Here, the casing that houses the blower, the heat exchanger, the partition member, and the like has an opening panel for performing heat exchange maintenance. As a result, when the heat exchanger is cleaned, it can be easily cleaned by opening the opening panel and pouring water on the heat exchanger.

[0007] An air conditioner according to a fourth invention is the air conditioner according to any one of the first to third inventions, wherein the partition member includes a plurality of fins provided on the surface of the heat exchanger. Of these, it is arranged near the fin provided at the end.

Here, the partition member is disposed in the vicinity of the fin disposed at the end portion among the plurality of fins included in the heat exchange.

As a result, even when the heat exchanger is washed with water, it can be avoided that the refrigerant pipe or the like gets wet with water and the malfunction occurs.

[0008] An air conditioner according to a fifth invention is the air conditioner according to the fourth invention, wherein the partition members are provided at both ends of the plurality of fins provided on the surface of the heat exchanger. It is provided near the fin.

Here, partition members are provided in the vicinity of the fins arranged at both ends of the heat exchanger.

This ensures that the space where the refrigerant piping connected to the side of the heat exchanger, electrical wiring, etc. is placed, and the space upstream of the heat exchanger ^^, even when the heat exchanger is washed with water. It is possible to avoid the occurrence of defects.

[0009] An air conditioner according to a sixth aspect of the present invention is the air conditioner according to any one of the first to fifth aspects, wherein drain water generated in the heat exchanger is received at a lower portion of the heat exchanger. A drain pan is further provided.

Here, a drain pan is provided below the heat exchanger.

For this reason, it is particularly easy to get dirty, and it is possible to easily wash the heat exchanger and drain pan with water.

The invention's effect

[0010] According to the air conditioner pertaining to the first invention, it is possible to suppress contamination of the refrigerant piping that has a complicated structure and is difficult to clean.

According to the air conditioner pertaining to the second invention, the heat exchanger is washed with water! Even in the case of dripping, it is possible to avoid the occurrence of defects such as poor insulation due to wet electrical components. According to the air conditioner pertaining to the third invention, when the heat exchanger is cleaned, it can be easily cleaned by opening the opening panel and pouring water into the heat exchanger.

According to the air conditioner pertaining to the fourth aspect of the invention, even when the heat exchanger is washed with water, it can be avoided that the refrigerant pipes etc. get wet with water and cause problems.

According to the air conditioner pertaining to the fifth aspect of the invention, the space where the refrigerant piping and the electrical wiring connected to the side surface of the heat exchanger are arranged and the space upstream of the heat exchange are reliably partitioned, Even when the heat exchange is washed with water, it is possible to avoid the occurrence of problems.

According to the air conditioner pertaining to the sixth aspect of the invention, it is possible to easily wash the heat exchanger and the drain pan, which are particularly dirty, with water.

Brief Description of Drawings

FIG. 1 is a front view showing an internal configuration of an air conditioning indoor unit according to an embodiment of the present invention.

FIG. 2 is a side view showing the internal configuration of the air conditioning indoor unit of FIG.

FIG. 3 is an exploded view showing the configuration of the air conditioning indoor unit of FIG.

4] (a) is a perspective view showing members around the heat exchange provided in the air conditioning indoor unit of FIG. (b) is the front view.

FIG. 5 is a perspective view showing a structure for attaching a partition plate installed in the air conditioning indoor unit of FIG. 1. Explanation of symbols

1 Casing

2 Heat exchanger

2a Refrigerant piping

3 Blower (Blower)

4 Side plate

5-face plate

6 Back plate

7 Top plate

8 Bottom plate

9 Air inlet

10 Maintenance panel 1 Air outlet

2 Duct

3 Bottom frame

4 Upper frame

5 Locking part

6 Mounting plate

7 Fan casing

7a Discharge port

7b Inlet

8 Fan motor

9 Benoleto

0a Rotation axis

1 pulley

2 Drain / n

0a Partition plate

0b Partition plate

1 Middle plate

2 Refrigerant piping, electrical wiring penetration 2a Through hole

3 Fixing member

4 Fixing member

0 Refrigerant piping

1 Electrical wiring through pipe

0 Air conditioner indoor unit (air conditioner)

A Heat exchanger upstream space

B Refrigerant piping, electrical wiring installation space

C Refrigerant piping installation space

F Fin BEST MODE FOR CARRYING OUT THE INVENTION

[0013] An air conditioner according to an embodiment of the present invention will be described below with reference to FIGS.

[Configuration of the entire air conditioning indoor unit]

As shown in FIGS. 1 to 3, an air conditioner according to an embodiment of the present invention is a floor-mounted air conditioner (air conditioner) 50, which is a rectangular parallelepiped casing 1 and the casing 1. A heat exchanger 2 disposed so as to cross the air passage and a blower 3 disposed above the heat exchanger 2.

The air-conditioning indoor unit 50 is connected to an air-conditioning outdoor unit (not shown) arranged outside of the room via a refrigerant pipe (reference numeral 40 in FIG. 3), and a compressor or the like constituting a refrigerant circuit on the air-conditioning outdoor unit side. Is housed.

The casing 1 includes a pair of side plates 4, 4, a front plate 5 attached between the front ends of the side plates 4, 4, a back plate 6 attached between the rear ends of the side plates 4, 4, and a top plate 7 and a bottom plate 8. Further, glass wool covered with an aluminum sheet is installed as a heat insulating material on the inner surfaces of these side plates 4 and 4 and the back plate 6 and a maintenance panel (opening panel) 10 described later. Since such a heat insulating material hardly absorbs water and has excellent wear resistance, the inside of the air conditioning indoor unit 50 can be easily cleaned by wiping with a rag after watering.

As shown in FIG. 2, the heat exchanger 2 is arranged on the back side of the maintenance panel 10 described later and across the air flow formed by the blower 3. The heat exchanger 2 is attached to the inside of the casing 1 in a state of being inclined downward from the front side of the opening that appears when the maintenance panel 10 is removed to the back side. The lower frame 13 for supporting the heat exchanger 2 is locked to locking portions 15 and 15 formed at both rear ends of the side plates 4 and 4. On the other hand, the upper frame 14 is screwed while being locked to a mounting plate 16 formed in the vicinity of both front end edges of the side plates 4 and 4. Further, at the left and right ends of the heat exchanger 2, a space の on the upstream side of the heat exchanger 2 (hereinafter simply referred to as the upstream side of the heat exchanger 2) in the air flow formed by the blower 3 and the refrigerant described later Partition plate (partition member) arranged to separate piping / electrical wiring installation space B and refrigerant piping installation space C (see Fig. 4 (b)). 30a, 30b. The partition plates 30a and 30b will be described in detail later.

[0015] As shown in FIGS. 1 to 3, the blower 3 is attached to the upper part of the air conditioning indoor unit 50, and includes a scroll-type fan casing 17, a fan motor 18, a belt 19, and a pulley 21 (drive unit). And a fan rotor (sirocco fan).

The fan casing 17 has an air outlet 17a that blows air in the direction of the top plate 7 (duct 12) and an air inlet 17b that also sucks air in both directions in the direction of the rotary shaft 20a of the fan rotor. The blower 3 transmits the rotational driving force of the fan motor 18 to the rotary shaft 20a via the pulley 21 and the belt 19, rotates the fan rotor housed in the fan casing 17, and sucks it from the intake port 17b. Air is discharged from outlet 17a.

The pair of side plates 4 form an outline on the side surface of the air conditioning indoor unit 50, and also support the both sides of the fan motor 18 and the rotating shaft 20a of the blower 3. Further, the side plate 4 has a locking portion 15 formed by cutting and raising each rear end edge inward.

[0016] The front plate 5 is formed with an air suction port 9 at an intermediate portion in the vertical direction, and a maintenance panel 10 having a lower end portion as a rotation center is provided to open and close so as to cover the air suction port 9. Is provided. The maintenance panel 10 is opened for maintenance, etc., and the heat exchanger 2 is cleaned.

The back plate 6 normally forms an outer shell that is arranged to be on the wall side when the air conditioning indoor unit 50 is installed.

An air outlet 11 is formed in the top plate 7. The air outlet 11 is connected to a duct 12 that guides conditioned air to blow out a desired place force.

The bottom plate 8 includes a solenoid valve, various electrical components, and other components that are attached to the refrigerant pipe 40 connected to the heat exchange between the intermediate plate 31 that forms the upstream space A of the heat exchange 2. Lower drain pan is placed.

[0017] Further, below the heat exchanger 2, as shown in FIG. 2, a drain pan 22 for receiving drain water falling from the heat exchanger 2 is located on the upper side on the front side and on the lower side on the back side. It is arrange | positioned with the attitude | position inclined so that it may be located. A drain guide pipe 23 that guides drain water from the lower end of the heat exchanger 2 to the drain pan 22 and a drain outlet 24 that discharges the drain water to the outside are provided. [Configuration around the space upstream of the heat exchanger]

As shown in FIG. 4 (a), the partition plate 30a includes a space A on the upstream side of the heat exchanger 2 in the casing 1, a refrigerant pipe 2a on the side surface of the heat exchanger 2, and a refrigerant pipe that will be described later. The refrigerant pipe 40 penetrating 32 and the refrigerant pipe 41 provided with the electric wiring through pipe 41 are arranged so as to partition the electric wiring installation space B. The partition plate 30a is erected from the middle plate 31 in the vicinity of the endmost fin among the plurality of fins F attached to the surface of the heat exchanger 2.

[0018] As shown in FIG. 4 (a), the partition plate 30b includes an upstream space A of the heat exchanger 2 and a space B (hereinafter referred to as a refrigerant pipe 2a exposed on the side surface of the heat exchanger 2). The end of the fin F attached to the surface of the heat exchanger 2 from the middle plate 31 (in the opposite direction to the partition plate 30a) in parallel with the partition plate 30a so as to partition the refrigerant piping installation space B) It stands up to the vicinity of the edge.

Further, as shown in FIG. 5, the partition plates 30a and 30b are each fixed to the intermediate plate 31 using a fixing member 33, and are screwed to the heat exchanger 2 using the fixing member 34. It is fixed. The fixing members 33 and 34 are L-shaped members, and are formed with a plurality of screw holes. The partition members 30a and 30b are fixed to the intermediate plate 31 and the heat exchanger 2 by screwing screws into the screw holes. In addition, the fixing member 33 that fixes the partition member 33 arranged on the right side when viewed from the maintenance panel 10 is attached in an L-shape, and the fixing member 33 that fixes the partition member 34 arranged on the left side is an inverted L-shape. It can be installed in the mold state.

[0019] The intermediate plate 31 is a member for partitioning the space in which the heat exchanger 2 is installed and the installation space for the electrical components and the like below the space, and the central portion of the space A on the upstream side of the heat exchanger 2 A temperature sensor is provided in the vicinity, not shown.

As shown in FIG. 4 (a), the refrigerant pipe 'electrical wiring through plate 32 forms a refrigerant piping / electrical wiring installation space B together with the partition member 30a and the side plate 4, and the refrigerant piping 40 and the electric wiring through pipe A through hole 32a is formed to penetrate 41. The refrigerant pipe / electrical wiring through plate 32 is a portion on the right side of the partition plate 30a in the intermediate plate 31 when viewed from the maintenance panel 10 side. [Features of this air conditioning indoor unit]

(1)

In the air conditioning indoor unit 50 of the present embodiment, when the maintenance panel 10 is removed, the heat exchanger 2 is exposed to the front. The exposed space A on the upstream side of the heat exchanger 2 and the spaces B and C on the side of the heat exchanger 2 are partitioned by partition members 30a and 30b.

Normally, when washing heat exchangers of such a configuration, it is very efficient to wash them with water, and the heated water is passed through a drain pan installed below the heat exchangers. It is preferable because it can be discharged to the outside. However, in this case, if water is subjected to heat exchange, the surrounding electrical components and the like may get wet, causing a problem. For this reason, it has been difficult to wash the heat exchanger with water.

Therefore, in the air conditioning indoor unit 50 of the present embodiment, even when the heat exchange 2 is washed with water, the space A on the upstream side of the heat exchange 2 is avoided in order to avoid the occurrence of malfunctions in electrical components. And partition members 30a and 30b for partitioning the spaces B and C on both sides of the heat exchanger 2 in which electric parts and the like are installed.

As a result, it is possible to prevent the water applied to the heat exchange 2 from being applied to electrical components and the like, so that the heat exchange 2 can be easily washed with water.

In addition, the refrigerant pipes 2a and 40 connected to the side surface of the heat exchanger 2 tend to accumulate dirt due to the complicated structure of the pipes with small diameters, but the partition members 30a and 30b are provided to the outside. As a result, the refrigerant pipes 2a and 40 are less likely to accumulate dirt.

(2)

The air conditioning indoor unit 50 of the present embodiment includes a maintenance panel 10 that exposes the heat exchanger 2 to the outside as a part of the casing 1 constituting the outer shell.

Thus, the heat exchange 2 can be easily cleaned with the maintenance panel 10 removed and the heat exchange 2 exposed.

(3)

In the air conditioning indoor unit 50 of this embodiment, the partition members 30a and 30b are duplicated on the surface of the heat exchanger 2. A few are attached, and they are attached near the ends of the fin F.

As a result, the upstream space A of the heat exchanger 2 can be separated from the refrigerant piping'electrical wiring installation space B and the refrigerant piping installation space C. Even when the heat exchanger 2 is washed with water, the refrigerant piping It is possible to prevent problems caused by water being applied to 2a, 40, etc.

(Four)

The air conditioning indoor unit 50 of the present embodiment is provided with a drain pan 22 below the heat exchanger 2 that is washed with water.

As a result, the water applied to wash the heat exchanger 2 can be discharged to the outside through the drain pan 22. Therefore, troublesome work such as wiping off water after washing with water is unnecessary.

[Other embodiments]

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the invention.

(A)

In the embodiment described above, the example in which the partition plates 30a and 30b are arranged at the left and right ends of the heat exchanger 2 has been described. However, the present invention is not limited to this.

For example, only the partition plate 30a without providing the partition plate 30b may be used.

However, by providing the partition plates 30a and 30b at the left and right ends as in the above embodiment, it is possible to prevent water from being applied to the refrigerant piping installation space C in addition to the refrigerant piping / electrical wiring installation space B. For this reason, it is desirable to provide partition plates 30a and 30b at the left and right ends of the heat exchanger 2.

(B)

In the embodiment described above, the example in which the partition members 30a and 30b are arranged near the end portion of the fin F of the heat exchanger 2 has been described. However, the present invention is not limited to the arrangement of the partition members 30a and 30b.

For example, the partition members 30a and 30b may be disposed on the inner side of the end portion of the heat exchanger 2. However, in consideration of washing the entire heat exchanger 2 with water, it is desirable that the heat exchanger 2 be disposed at both the left and right ends, that is, near the ends of the fins F.

Industrial applicability The air conditioner of the present invention has an effect that the heat exchanger can be washed with water without adversely affecting the refrigerant piping, electrical parts, and the like. Therefore, the air conditioner has an opening that exposes heat exchange. And widely applicable.

Claims

The scope of the claims

[1] A blower (3) that forms a flow of air;

A heat exchanger (2) that is arranged in the air flow formed by the blower (3) and exchanges heat between the refrigerant and the air;

A partition member (30a, 30b) for partitioning a space (A) upstream of the heat exchanger (2) in the air flow and a space (B, C) in which a pipe through which the refrigerant flows is disposed; With an air conditioner (50).

[2] The partition members (30a, 30b) include a space (A) on the upstream side of the heat exchanger (2) in the flow of air formed by the air blowing section (3), wiring, piping, electric It is arranged to partition the space (B) where the parts are arranged.

The air conditioner (50) according to claim 1.

[3] Further comprising a casing (1) for accommodating the air blowing section, the heat exchanger ^ and the partition member (30a, 30b) inside,

The casing (1) exposes the space (A) upstream of the heat exchanger (2) in the air flow formed by the blower (3), and maintains the heat exchanger (2). Have an opening panel (10) to do

The air conditioner (50) according to claim 1 or 2.

[4] The partition members (30a, 30b) are arranged in the vicinity of the fin (F) provided at the end of the plurality of fins (F) provided on the surface of the heat exchanger (2). Have been

The air conditioner (50) according to any one of claims 1 to 3.

[5] The partition members (30a, 30b) are provided in the vicinity of the fins (F) provided at both ends of the plurality of fins (F) provided on the surface of the heat exchanger (2). And

The air conditioner (50) according to claim 4.

[6] A drain pan (22) for receiving drain water generated in the heat exchanger (2) is further provided at a lower portion of the heat exchanger (2).

The air conditioner (50) according to any one of claims 1-5.