JPH09119663A - Indoor device of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To treat dew water flowed at a rear surface side heat exchanger without generating any water leakage. SOLUTION: A dew receiving groove 1a for use in receiving dew water of a heat exchanger 4 arranged at a base frame 1 at its inner surface is formed by a rib 1b. Air not heat exchanged is prevented from entering a cross flow fan 5. A side surface of a partition plate 1k integral with the base frame 1 arranged at a position opposing against each of both side surfaces of the cross flow fan is formed with a water drain groove 1e continuous with the dew receiving groove 1a for use in flowing down the dew water from the recesses 1c arranged at both ends of the rib 1b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the treatment of condensed water in an indoor unit of an air conditioner.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, the dew condensation water treatment of an indoor unit of an air conditioner having a heat exchanger arranged on the back side is such that the dew condensation water generated in the heat exchanger 4 arranged on the underframe side is It flows down to the dew receiving groove 1a formed by the rib 1b provided integrally with the underframe 1, and flows out from the side surface of the dew receiving groove 1a. The dew condensation water that has flowed out flows down on the back surface of the underframe 1 or the side surface of the underframe 1 as shown by the arrow, and flows down to the drainage groove 1i provided for the dew condensation water generated on the back surface of the underframe to be treated outside the main body. It is a composition.

[0003]

However, in the above configuration, the dew condensation water flowing out from the side surface of the dew receiving groove reaches the side surface of the dew receiving groove until it reaches the drain groove for treating the dew condensation water generated from the back surface of the underframe. It may be transmitted to a pipe connecting an indoor unit and an outdoor unit, and may leak directly to the outside of the air conditioner body without entering the drainage groove for treating condensed water on the back surface of the underframe.

In view of the above problems, the present invention provides a structure for reliably guiding the dew condensation water in the dew receiving groove provided on the inner surface of the underframe to the water receiving tray of the blowing grill.

[0005]

In order to solve the above-mentioned problems, the dew condensation water treating apparatus of the present invention comprises a dew receiving groove provided on the underside of the underframe for receiving dew condensation water of the heat exchanger. Notches are provided at both ends of the ribs to prevent air that has not undergone heat exchange from entering the ventilation passages, and the dew receiving points are provided on the partition plates that are integrated with the underframes that are located on opposite sides of the crossflow fan. By forming the drain groove continuous with the groove, the dew condensation water that has flowed into the dew receiving groove provided on the inner surface of the underframe from the heat exchanger can be reliably flowed down to the water receiving tray provided on the blowing grill.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention has the above-described structure,
Condensation water generated from the heat exchanger placed on the back side of the underframe
The dew receiving groove provided on the inner surface of the underframe that receives it prevents air that has not undergone heat exchange from entering the ventilation passages, and is a partition plate that is integrated with the underframe that is provided on each side of the crossflow fan. By forming a drainage groove continuous with the dew receiving groove in the above, it is possible to reliably lead to the water receiving tray of the blowing grille, and to reliably prevent water leakage where condensed water drops outside the main body of the air conditioner on the way. You can

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A dew treatment device according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a side sectional view of an indoor unit of an air conditioner of an embodiment, in which an outer appearance of a main body is constituted by an underframe 1 and a front frame 2 on which an intake grill 7 covering the underframe 1 is attached. However, the air sucked through the suction ports 1a, 2a, 7a provided in the underframe 1, the front frame 2 and the suction grill 7 is heat-exchanged by the heat exchanger 4 and cross-flow fan 5
Thus, the structure is such that the air passes through the blow-out grill 3 and is blown out from the blow-out port 3c as warm air during heating and cool air during cooling. An air filter 8 is provided between the suction port and the heat exchanger 4 to remove dust contained in the sucked air.

During cooling, dew condensation water is generated in the heat exchanger 4, but the dew condensation water generated by the heat exchanger 4 on the front frame 2 side directly flows down to the water tray 3b formed integrally with the blowing grill 3 and outside the room. Issued to. Heat exchanger 4 arranged on the underframe side
The generated dew condensation water has a structure that flows down to the dew receiving groove 1a formed by forming the rib 1b on the inner surface of the underframe 1.

2, FIG. 3, and FIG. 4, respectively, are perspective views from the right side of one embodiment of the present invention, a cross-sectional view taken along the vertical direction of a cross flow fan by a drainage groove provided in the right partition plate portion, and the left side. FIG.

The rib 1b formed on the inner surface of the underframe 1 forms a dew receiving groove 1a with the underframe inner wall 1j so as to receive the dew condensation water generated in the heat exchanger 4 arranged on the underframe side. Rib 1
b connects the partition plates 1k, and is approximately the same in length as the heat exchanger 4, and can receive dew condensation water generated from the heat exchanger 4 arranged on the underframe side.

The partition plate 1k is integrated with the underframe 1 at a position facing both sides of the cross flow fan 5 in order to prevent air that has not passed through the heat exchanger 4 and is not heat-exchanged from entering the ventilation passage. And has a function of filling a gap formed on both side surfaces of the heat exchanger 4 arranged on the front frame side and the underframe side. Further, a part of the partition plate 1k has a cylindrical fan case 1g that covers a few mm from the end face of the crossflow fan 5 so that no wind noise is generated when the crossflow fan 5 rotates.

The ribs 1d are located on both sides of the dew receiving groove 1a, and the ribs 1b are cut out between the partition plate 1k and the ribs 1d (1c). The rib 1d is formed facing the partition plate 1k, and the partition plate 1k and the rib 1d form a drainage groove 1e.

With these configurations, the condensed water flowing from the heat exchanger 4 into the dew receiving groove 1a passes through the notch 1c,
Drainage groove 1e formed by extending partition plate 1k and rib 1d
Through the drain groove tip 1f to the water pan 3b of the blowing grille 3 and joins with the condensed water that has flowed down from the heat exchanger 4 arranged on the front frame side to the outside from the drain hose connected to the drain port 3a. Be drained to.

Conventional Example As shown by the arrow in FIG. 5, the condensed water is
There is something that may cause water leakage by flowing over the fan case 1g and flowing down to the connection pipe 6 without flowing down to the drainage groove 1i on the back surface of the underframe 1. In this embodiment, the rib 1d is provided. By forming 1e, the dew condensation water from the dew receiving groove 1a can be reliably guided to the water receiving tray 3b of the blowing grill 3 via the drain groove 1e.

The arrows in FIGS. 2, 3 and 4 indicate the flow of condensed water. In this embodiment, the notch 1c and the drain groove 1e are provided at both ends of the rib 1b, but only one of the notch 1c may be provided. In that case, it is necessary to incline the dew receiving groove 1a in order to increase the depth of the dew receiving groove 1a and to facilitate the flow of dew condensation water on the notch 1c side.

In this embodiment, since the drainage grooves 1i can be made shallower by providing the cut-and-couplings 1c at both ends and there is no need to make an inclination, the mold structure becomes very simple, and the installation of the indoor unit is a little difficult. Even if it is installed at an angle, it is possible to surely allow condensed water to flow down from the cutout on either the left or right.

The drainage groove 1e is connected to the cross flow fan 5
Although it is possible to form the drainage groove 1e between the shaft center 5a of the cross flow fan 5 and the back face of the underframe 1, as shown in FIG. The formation of the groove 1e and the fan case 1g becomes very easy in terms of mold production and structure.

In this embodiment, the partition plate 1k, the fan case 1g and the rib 1d are integrated with the underframe 1 to form the drainage groove 1e. However, all or part of this portion is formed as a separate piece, and the separate piece is formed. The drainage groove 1e may be configured and attached to the underframe 1 by a method such as screw fixing or fitting. In this case, the number of parts increases, but the cross flow fan 5
It is possible to improve the workability of attaching.

[0020]

As described above, according to the present invention, the notches are provided at both ends of the ribs forming the dew receiving groove provided on the inner surface of the underframe, and the underframes provided at the positions opposed to both side surfaces of the cross flow fan. By forming a drain groove that is continuous with the cutout on the side surface of the partition plate that is integral with, the dew condensation water can be reliably flowed down from the dew receiving groove of the underframe to the water receiving tray of the blowing grill, and water leakage can be prevented. Can be prevented.

Further, by forming a drainage groove in the upper part of the cross flow fan, it is possible to simplify the manufacturing of the mold and the structure.

[Brief description of the drawings]

FIG. 1 is a sectional view of an air conditioner according to an embodiment of the present invention.

FIG. 2 is a right side perspective view of the air conditioner according to the embodiment of the present invention.

FIG. 3 is a sectional view of an air conditioner according to an embodiment of the present invention.

FIG. 4 is a left side perspective view of the air conditioner according to the embodiment of the present invention.

FIG. 5A is a right rear perspective view of an air conditioner in a conventional example. FIG.

[Explanation of symbols]

 1 Base frame 1a Dew receiving groove 1b Rib 1c Cutout 1d Rib 1e Drain groove 1f Drain groove tip 1g Fan case 1h Dew receiving groove side surface cutout 1i Drain groove 1j Underframe inner wall 1k Partition plate 2 Front frame 2a Suction port 3 Blow-out grill 3a Drain port 3b Water pan 3c Blowout port 4 Heat exchanger 5 Crossflow fan 5a Crossflow fan shaft center 6 Connection piping 7 Intake grill 7a Intake grill suction port 8 Air filter

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Eiji Nakatsuka 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (3)

[Claims] 1. Ventilation for connecting a suction frame formed on an upper surface of the main body and a blow-out grill provided with a water tray on the lower front surface to form a main body with an underframe and a front frame covered with the underframe. In an indoor unit of an air conditioner in which a heat exchanger is arranged on each of the underframe and the front frame side in a passage and a crossflow fan is arranged under the heat exchanger, A rib that forms a dew receiving groove that receives dew condensation water of the heat exchanger arranged on the underframe side is formed on the inner surface to prevent air that is not heat-exchanged from entering the ventilation passage, Condensation water from cutouts provided at both ends of the rib is made to flow down to a water tray of the blowing grill on the side surface of a partition plate which is integrated with the underframe provided at a position facing each side surface, and Continuous with receiving groove Indoor unit of an air conditioner which is characterized in that a Mizumizo. 2. The indoor unit for an air conditioner according to claim 1, wherein a drainage groove is formed so as to pass through an upper portion of an axial center of the cross flow fan. 3. A notch portion provided at both ends of the rib on a partition plate provided at a position opposed to both side surfaces of the cross flow fan to prevent air which is not subjected to heat exchange from entering the ventilation passage. The indoor unit of the air conditioner according to claim 1, further comprising a drainage groove that receives dew condensation water from the outlet grill and flows down to the water tray of the blowing grill.