JP2002250536A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a wall surface extending rearwardly of an air conditioner from being contaminated with condensation water on a rear side heat exchanger. SOLUTION: A casing is constructed with a body casing 2 and a front surface cover 3, in an upper surface of and in a front surface of which casing suction inlets 4, 7 are provided and in a lower front surface of which casing a blow-off outlet 6 is provided. A fan air passage is formed, extending from the suction inlets to the blow-off outlet, in which passage there are provided heat exchangers 9 respectively disposed into an inverted V shaped configuration oppositely to the body casing 2 and the front surface cover 3, at a lower portion of which heat exchangers 9 there is provided an air fan 10. Further, at a lower portion of the front side heat exchanger 9b facing the foregoing front surface suction inlet 4 a front side drain pan is provided for receiving condensation water from the foregoing heat exchanger, while at a lower portion of the rear side heat exchanger 9a facing the foregoing body casing 2 a dew reception section 12 is provided. Furthermore, rearwardly of the dew reception section 12 or downwardly of the same there is provided a back surface suction inlet 13, and on the back of the body casing 2 located downwardly of the back surface suction inlet 13 there is formed a back surface drain pan 15, and further there is provided a water splash preventing rib 14 is provided between the foregoing back surface suction inlet 13 and the back surface drain pan 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an indoor unit of an air conditioner.

[0002]

2. Description of the Related Art As for an indoor unit of a wall-mounted air conditioner installed on a wall surface in a room, the present applicant has filed a Japanese Patent Application No.
No. 134457 was filed. As shown in FIG. 4, this air conditioner forms a housing by a main body casing a and a front cover b, and has suction ports c and d on the front and upper surfaces of the housing and an outlet e on a lower front surface. A ventilation path is formed from the suction ports c and d to the air outlet e, and the heat exchangers f and g and the heat exchanger f and g are arranged in the ventilation path so as to be opposed to the main body casing a and the front cover b, respectively. A blower fan h is provided below f.g, and a front drain pan i for receiving dew water from the heat exchanger g is provided below the front heat exchanger g facing the front suction port c. A dew receiving portion j is provided below the opposing rear heat exchanger f, a back suction port k is provided behind or below the dew receiving portion j, and a back drain pan l is provided on the back of the main casing a below the back suction port k. Formed from the rear heat exchanger f Dew water is intended to be directed to the rear drain pan l through the rear inlet k and the dew receiving portion j, it was something to be improve the efficiency of the rear heat exchanger f by the blowing from the rear suction port k.

[0003]

However, in such an air conditioner, when the dew drops from the rear suction port k to the rear of the main casing a, it rebounds at the rear of the main casing a to contaminate the wall behind the air conditioner. There was a problem that caused user complaints such as water leakage.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned drawbacks, the present invention focuses on this point, and forms a housing with a main body casing and a front cover. A heat exchanger disposed in an inverted V-shape in the air flow path so as to face the main body casing and the front cover, respectively. A blower fan is provided below the heat exchanger, and a front drain pan for receiving dew water from the heat exchanger is provided below the front heat exchanger facing the front suction port, and below the rear heat exchanger facing the main body casing. A back suction port is provided behind or below the dew reception section, and a back drain pan is formed on the back of the main body casing below the back suction port, and water jumps between the back suction port and the back drain pan. Prevention It is provided with a rib of use.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.
3 is an indoor unit of a separate type air conditioner, which has a casing formed by a main body casing 2 and a front cover 3 at the front. An open panel 5 having a suction port 4 is provided, which is attached to the front cover 3 so as to be openable and closable with a shaft (not shown) provided on the left and right of the upper part of the panel 5 as a fulcrum. A horizontally long air outlet 6 is provided, and an upper surface air inlet 7 is provided on the upper surface of the front cover 3 to compensate for an opening area short of the air inlet 4.
An air blowing path 8 is formed between the air outlet 6 and the air outlet 6.

A heat exchanger 9 of a fin tube type, which is horizontally long and bent in multiple stages in the vertical direction, is arranged inside the suction ports 4 and 7 of the air blowing path 8 in an inverted V-shape. A front heat exchanger 9b is formed opposite the rear heat exchanger 9a facing the main body casing 2 and the suction port 4 of the front cover 3, and a horizontally long blower fan 10 is arranged below the heat exchanger 9. ing.

A front drain pan 11 integrally formed of a resin foam is provided below the front heat exchanger 9b to receive the condensed water generated in the front heat exchanger 9b and the fan 1
It also has a function of an air guide for guiding the airflow of 0 to the outlet 6. The refrigerant circulates in the copper tubes 9c of the heat exchangers 9a and 9b. During the cooling operation, the low-temperature refrigerant circulates in the copper tubes 9c, so that dew condensation occurs on the entire surface of the heat exchanger 9. .

Below the rear heat exchanger 9a, there is formed a dew receiving part 12 integrally formed with the main body casing 2 and projecting inward from the main body casing 2.
A rear suction port 13 that penetrates the rear surface is provided at the rear or lower side of the main body casing 2 so as to suck indoor air and drain dew water generated in the rear heat exchanger 9a to the lower side of the rear surface of the main body casing 2.

On the back side of the main casing 2, a rib 14 protruding horizontally from the rear face of the main casing 2 is provided integrally with the rear face of the main casing 2 about 8 mm below the rear suction port 13 from the rear suction port 13. This prevents dripping dew condensation from splashing back and soiling the wall where the air conditioner is installed.

A rear drain pan 15 is provided below the ribs 14 in a direction longer than the rear suction port 13 in the lateral direction, and the dew water passing through the rear suction ports 13 and the ribs 14 is collected and led to the front drain pan 11. The water is drained outdoors by a drain hose (not shown) connected to the front drain pan 11.

The lower surface of the rib 14 and the rear surface of the main casing 2 are formed at an acute angle, and a small amount of dew water is always stored on the lower surface of the rib 14 due to the surface tension of the dew water, so that the dew water dropped from the rear suction port 13 can be removed. This guides to the back drain pan 15 very smoothly. A tongue piece 16 which functions as a rear air guide of the blower fan 10 is provided on the front side substantially parallel to the dew receiving portion 12 while keeping a space with the dew receiving portion 12.

A mesh-shaped pre-filter 17 made of resin is provided between the suction ports 4 and 7 and the heat exchanger 9 to catch relatively large dust in the air. The pre-filter 17 needs to be periodically cleaned, and is detached by opening the open panel 5. Reference numeral 18 denotes a vertical wind direction plate provided in the outlet 6, which is rotated in the vertical direction by rotation of a louver motor (not shown) provided on the side of the outlet 6, to adjust the blowing direction. Reference numeral 19 denotes a left-right wind direction plate for manually changing the left-right wind direction.

The drainage path of the condensed water generated in the rear heat exchanger 9a will be described. The condensed water travels through the aluminum fins of the rear heat exchanger 9a and passes from the bottom of the heat exchanger 9a to the condensate of the main body casing 2. The water flows into the receiving part 12 and then drops from the rear suction port 13 provided at the lower part of the dew receiving part 12 to the rib 14 provided just below about 8 mm, flows vertically from the rib 14 and gathers in the lower drain pan 15 below. This time, the water flows in a substantially horizontal direction and flows to the front drain pan 11, where the water is condensed with the dew water of the front heat exchanger 9b and discharged to the outside via a drain hose (not shown).

As described above, the condensed water dripping from the rear suction port 13 is received by the ribs 14 provided immediately below, and the condensed water rebounds on the main body casing 2 by shortening the falling distance of the condensed water. This prevents the wall surface from being stained. The lower surface of the rib 14 and the rear surface of the main casing 2 are formed at an acute angle, and a small amount of dew water is always stored on the lower surface of the rib 14 due to the surface tension of the dew water, so that the condensed water dripped from the rear suction port 13 can be smoothly removed. It leads to the drain pan 15.

The cold condensed water generated by the rear heat exchanger 9a is heated by the hot air sucked from the rear suction port 13 and is passed through the rear suction port 13 after passing through the rear suction port 13, the rear suction port 13 and the rib 14. Due to the rise in the temperature of the hot atmosphere at the rear side of the casing 2 and the effect of the space provided between the dew receiving part 12 and the tongue piece 16, the dew receiving part 12 and the inner surface of the main body casing 2 facing the ventilation path 8 are condensed. Is prevented.

[0016]

As described above, according to the present invention, the rib 14 provided with the condensed water dripping from the rear suction port 13 is provided immediately below.
By reducing the distance of the condensed water from falling, the condensed water is prevented from bouncing off the main body casing 2 and soiling the rear wall surface of the air conditioner.

[Brief description of the drawings]

FIG. 1 is a perspective view of one embodiment of the present invention.

FIG. 2 is a schematic sectional view of the same.

FIG. 3 is a rear side oblique view.

FIG. 4 is a sectional view of a conventional example.

[Explanation of symbols]

 2 Body Casing 3 Front Cover 4 Front Suction Port 6 Outlet 7 Top Suction Port 9a Rear Heat Exchanger 9b Front Heat Exchanger 10 Blower Fan 12 Dew Receiver 13 Back Suction Port 14 Rib 15 Back Drain Pan

Claims (1)

[Claims] 1. A casing is formed by a main body casing and a front cover, a suction port is provided on an upper face and a front face of the casing, an outlet is provided on a lower front face, and a ventilation path is formed from the suction port to the outlet. A heat exchanger arranged in an inverted V-shape facing the main body casing and the front cover in the ventilation path, respectively;
A blower fan is provided below the heat exchanger, and a front drain pan for receiving dew water from the heat exchanger is provided below the front heat exchanger facing the front suction port. A dew receiving section is provided below the exchanger,
A back suction port was provided behind or below the dew receiving portion, a back drain pan was formed on the back of the main body casing below the back suction port, and a rib for preventing water jump was provided between the back suction port and the back drain pan. An air conditioner characterized by things.