JP2001183000A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner which can be improved in heat exchanging efficiency even if it has intake ports in the laminating direction of heat exchanger fins. SOLUTION: In an air conditioner (dehumidifier) having intake ports 6 and 7 at both ends of a heat exchanger (an evaporator 2, a condenser 3) with respect to the laminating direction of fins thereof, the heat exchanger (evaporator 2) is bent such that the laminated fins and the body casing inner wall 1a are close to each other at the central portion of the lamination and are separated from each other at the both ends thereof, so that the gap between the intake surface 2a of the heat exchanger (the evaporator 2) and the body casing inner wall 1a facing the same is wider at the sides of the intake ports 6 and 7 than at the central portion of the heat exchanger (the evaporator 2).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner such as a dehumidifier, and more particularly, to an air conditioner having an air inlet in a stacking direction of fins of a heat exchanger.

[0002]

2. Description of the Related Art In an air conditioner such as a dehumidifier, the front side of a main body having an intake port facing an intake surface of the heat exchanger is wide and has a depth corresponding to the shape and layout of the heat exchanger. A short configuration, that is, an elongated configuration in the width direction is generally used.

[0003] However, in the configuration elongated in the width direction, especially in the case of a dehumidifier, when the dehumidifier is installed in a narrow space such as a gap between a side wall of a closet and a futon or a gap between furniture and furniture, an air inlet is provided. Is close to the side walls, futons, furniture, etc. of the closet, and the intake port is closed by them, so the intake volume decreases,
There is a problem that the dehumidifying ability is reduced.

Accordingly, the applicant of the present application has made the dehumidifier main body elongated in the front-rear direction, and provided the air inlets on the front and rear surfaces of the main body, so that the gap between the side wall of the closet and the futon, the gap between the furniture and the furniture, etc. Has already applied for a dehumidifier that can be installed even in a narrow space (Japanese Patent Application No. 11-02265).
No. 2).

As shown in FIG. 5, an evaporator 2 constituting a refrigerating cycle in a width direction is formed in a main body case 1 which is elongated in the front-rear direction (the left-right direction in the figure) (has a long depth and a short width). A blower fan 5 driven and rotated by a compressor 3 and a motor 4 are sequentially arranged, and a compressor for storing a dehumidified water at a rear side of the lower part (not shown) and a dehumidifying water storage tank at a front side thereof are arranged.

Air inlets 6 and 7 are formed on the front and rear surfaces of the main body case 1 (ie, in the direction in which the fins of the evaporator 2 and the condenser 3 are stacked). As a result, the air is sucked from the intake ports 6 and 7 as shown by arrows, and is cooled by passing through the evaporator 2.
Dehumidify and dehumidify. The cooled and dehumidified air passes through the condenser 3 and is heated by the heat, becomes dry air, and is discharged from an exhaust port (not shown) formed above.

[0007] With the above structure, even if the space is installed in a narrow space such as a gap between the side wall of the closet and the futon or a gap between the furniture and the furniture, the side wall of the closet, the futon, the furniture and the like are in close contact. Intake ports 6, 7 on front and rear sides, not side
As a result, the intake ports 6, 7 are not blocked by the side walls, futons, furniture, etc. of the closet, and therefore, it is possible to prevent a decrease in the dehumidifying capacity due to a decrease in the intake amount as described above. I have.

[0008]

However, in the above configuration, as shown in FIG.
The air sucked from the evaporator 2 is changed in flow path at substantially a right angle by the evaporator 2, and the gap between the intake surface 2 a of the evaporator 2 and the main body case inner wall 1 a opposed to the intake surface 2 a is
Since the side surface is generally arc-shaped, the gap S1 at both ends (the intake ports 6 and 7) of the evaporator 2 is smaller than or equal to the gap S2 at the center. Therefore, the air sucked from the intake ports 6 and 7 inevitably concentrates on both ends of the evaporator 2, and the amount of intake air decreases on the center side, which causes a problem that the heat exchange efficiency decreases.

Accordingly, the present invention has been made to solve such a problem, and provides an air conditioner that can improve the heat exchange efficiency even if the heat exchanger has an intake port in the stacking direction of the fins. It is intended to do so.

[0010]

Means for Solving the Problems In order to achieve the above object, the present invention relates to an air conditioner having an intake port in a stacking direction of fins of a heat exchanger. A gap between the intake surface and the inner wall of the main body case facing the intake surface is configured such that the intake port side is widened.

In an air conditioner having intake ports on both sides in the stacking direction of fins of a heat exchanger, a clearance between an intake surface of the heat exchanger and an inner wall of a main body case opposed to the intake surface is defined by the respective intake ports. The mouth side is wider than the center of the heat exchanger.

Further, the heat exchanger is characterized in that the fins are bent such that the central portion in the stacking direction of the fins is close to the inner wall of the main body case and both ends are separated from the inner wall of the main body case.

Further, the heat exchanger is an evaporator of a dehumidifier.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.
This will be described in detail with reference to FIG.

In this embodiment, the present invention is applied to the dehumidifier as shown in FIG. 5 described above, and the same reference numerals as those in FIG. 5 denote the same or corresponding parts.

The dehumidifier of the present embodiment is also elongated in the front-rear direction (having a long depth and a short width) at the upper side in the main body case 1.
An evaporator 2, a condenser 3, and a blower fan 5 rotationally driven by a motor 4 constituting a refrigerating cycle are sequentially arranged in the width direction. A compressor 10 is arranged on the rear side of the lower part in the main body case 1, and a drawable dehumidified water storage tank 11 is arranged on the front side.

The front and rear sides of the main body case 1 (evaporator 2)
And the fins of the condenser 3 (in the direction in which the fins are stacked), the intake ports 6 and 7 having a grill structure are formed, and the exhaust port 12 is formed in the upper rear part of the main body case 1.

The blower fan 5 is housed in a wind tunnel 15 in which a suction port 13 is formed facing the condenser 3 and a blowout port 14 is formed toward an exhaust port 12 on the rear upper side.

On the lower side of the evaporator 2, there is provided a drain pan 16 for receiving water droplets that are condensed and dropped in the evaporator 2, and a tank for storing dehumidified water in which the dropped water droplets are disposed below. 11.

In the present embodiment, as shown in FIG. 1, the evaporator 2 is bent into a substantially rectangular shape at a central bent portion 2b, and the bent portion 2b is positioned close to the inner wall 1a of the main body case. Are arranged so that both ends are separated from the inner wall 1a of the main body case. That is, the gap between the intake surface 2a of the evaporator 2 and the inner wall 1a of the main body case facing the intake surface 2a is the gap S1 on both ends (the intake ports 6, 7 side) of the evaporator 2.
1 is configured to be gradually wider than the gap S12 on the central portion side.

The evaporator 2 has a structure in which a copper pipe 2d for circulating a refrigerant is inserted through laminated aluminum fins 2c as shown in an enlarged view in FIG. The aluminum fin 2c can be relatively easily realized because the copper pipe 2d may be bent without performing any special processing.

In the above configuration, when this dehumidifier is installed and operated in a narrow space such as between the side wall of the closet and the futon, the air containing much moisture in the closet is indicated by an arrow by the rotation of the blower fan 5. As described above, the air is sucked from the air inlets 6 and 7 and cooled by passing through the evaporator 2 to condense moisture and perform dehumidification. Further, the cooled and dehumidified air is heated by the heat by passing through the condenser 3, becomes dry air, and is discharged from the exhaust port 12 formed above through the wind tunnel 15 of the blower fan 4.

The moisture in the air condensed in the evaporator 2 drops into a drain pan 16 provided below the evaporator 2 and then accumulates in a dehumidified water storage tank 11. The water accumulated in the dehumidified water storage tank 11 is
Can be discharged by pulling it out forward and removing it.

In the present embodiment, as described above,
Since the evaporator 2 is bent at the center and the gap S11 at both ends of the evaporator 2 is configured to be gradually larger than the gap S12 at the center, the air sucked from the intake ports 6 and 7 is taken. Does not change the flow path much, and since the gap becomes narrower toward the center and the suction force increases, the synergistic effect of these causes the suction air to flow uniformly into the entire surface of the evaporator 2. In addition, the heat exchange efficiency is remarkably improved, and the amount of dehumidification increases accordingly. In addition, there is an advantage that it can be realized without changing the appearance of the main body case 1 as it is.

In the above embodiment, the case has been described in which the intake ports 6 and 7 are provided on both sides in the stacking direction of the fins 2c of the evaporator 2, but the intake ports 6 are provided only on the front side, for example.
Is provided, the evaporator 2 is not bent and the inlet 6
What is necessary is just to arrange | position inclining so that the clearance gap of a side may become large.

In the above embodiment, only the evaporator 2 is bent. However, if the condenser 3 is also bent in the same manner, the interval between the evaporator 2 and the condenser 3 becomes constant, and the condensation by the evaporator 2 is performed. The cooling operation of the vessel 3 can be made to work evenly on the entire surface of the condenser 3.

Even if the evaporator 2 is not bent and the opposing inner wall 1a of the main body case is formed close to the center of the evaporator 2, the gap becomes narrower toward the center and the suction force is reduced. Since the air becomes larger, the suction air flows almost uniformly into the entire surface of the evaporator 2, so that the heat exchange efficiency is improved and the dehumidification amount is also increased accordingly.

Further, in the above embodiment, the case where the present invention is applied to a dehumidifier has been described. However, the present invention can be applied to an air conditioner or the like as long as it has an air inlet in the stacking direction of the fins of the heat exchanger.

[0029]

As described above, according to the present invention, in an air conditioner having an intake port in a stacking direction of fins of a heat exchanger, an intake surface of a heat exchanger and an inner wall of a main body case facing the intake surface are provided. Is formed so that the intake port side is widened, the suction air from the intake port flows almost uniformly into the entire surface of the heat exchanger, thereby improving the heat exchange efficiency.

In an air conditioner having intake ports on both sides in the stacking direction of the fins of the heat exchanger, each intake port side defines a gap between the intake surface of the heat exchanger and the inner wall of the main body case facing the intake surface. By being configured to be wider than the center of the heat exchanger, even when the heat exchanger has intake ports on both sides in the stacking direction of the fins, similarly to the above, suction air from the intake port is applied to the entire surface of the heat exchanger. Since heat flows almost uniformly, heat exchange efficiency is improved.

Further, the heat exchanger is bent so that the center of the fins in the stacking direction is close to the inner wall of the main body case and both ends are separated from the inner wall of the main body case. This is more effective because it flows uniformly over the entire surface of the heat exchanger without any change.
In addition, there is an advantage that it can be realized without changing the appearance of the main body case.

Further, by applying the present invention to an evaporator of a dehumidifier, the heat exchange efficiency of the dehumidifier which can be installed in a narrow space such as a gap between a side wall of a closet and a futon or a gap between furniture and furniture is improved. As a result, the amount of dehumidification increases.

[Brief description of the drawings]

FIG. 1 is a partially cutaway cross-sectional view of a dehumidifier which is an embodiment of an air conditioner according to the present invention.

FIG. 2 is a longitudinal sectional view of the dehumidifier in the front-rear direction.

FIG. 3 is a longitudinal sectional view of the dehumidifier in the left-right direction.

FIG. 4 is a partially enlarged view of the evaporator shown in FIG. 1;

FIG. 5 is a cross-sectional view of a dehumidifier for explaining a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body case 1a Main body case inner wall 2 Evaporator 2a Intake surface 2b Bent part 2c Aluminum fin 2d Copper pipe 3 Condenser 4 Motor 5 Blow fan 6,7 Intake port 10 Compressor 11 Dehumidified water storage tank 12 Exhaust port S1, S2 , S11, S12 gap

Claims (4)

[Claims] 1. An air conditioner having an air inlet in a stacking direction of fins of a heat exchanger, wherein a gap between an air intake surface of the heat exchanger and an inner wall of a main body case facing the air intake surface is increased on the air inlet side. An air conditioner characterized by having a configuration as described above. 2. An air conditioner having intake ports on both sides of a fin of a heat exchanger in a stacking direction, wherein a gap between an intake surface of the heat exchanger and an inner wall of a main body case facing the intake surface is defined by each of the intakes. An air conditioner characterized in that the mouth side is configured to be wider than the center of the heat exchanger. 3. The heat exchanger according to claim 2, wherein the heat exchanger is bent such that the center of the fins in the stacking direction is close to the inner wall of the main body case and both ends are separated from the inner wall of the main body case. Air conditioner. 4. The air conditioner according to claim 1, wherein the heat exchanger is an evaporator of a dehumidifier.