JPH01306736A - Formation of drain pan of air conditioner - Google Patents

Abstract

PURPOSE:To dissolve water leakage from a joining part and reduce constitutent components by cutting a sealed edge part and forming a drain hole after forming the inner face side pan of a drain pan of a resin-made sheet, making a part thereof like an edge-sealed cylinder and integrally forming a drainage system and a resin foam material. CONSTITUTION:A drain pan body 5 is a resin foam material and made box-like. A pan 6 constitutes the inner face of a drainage system 5, which has a properly inclined face 6a and collects drain 7 in a storage part 6b. A part of the storage part 6b is formed more downward and the edge of the cylindrical pipe 8 is sealed. The pan 6 and the drain pan body 5 is integrally formed with the edge of the cylindrical pipe 8 sealed and the cylindrical part 8 is projected a little higher than the lower face 5a of the drain pan body 5. Next said sealed part is cut to become an opening of a drain hole 9. The pan 6 is a resin this plate and a part thereof is formed to become a drain hole 9 to utilize, but the edge of the pipe 8 is integrally formed with it sealed and thereafter opened because the guarantee of pipe thickness is difficult and the edge thereof is changeable at the time of the integral formation with the drainage system 5.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method of forming a drain pan in an air conditioner.

BACKGROUND OF THE INVENTION In recent years, drain pans for air conditioners have increasingly been made of resin foam, which has the purpose of reducing weight and also serves as a heat insulator to prevent condensation. If the resin foam is used as it is, a thin plate-like saucer is provided on the inner surface of the resin foam that directly receives the drain water by vacuum molding or injection molding in order to transmit the drain water, and the resin foam is formed at the same time as the resin foam. Or, a configuration in which it is bonded is common.

In addition, the drain outlet is constructed by simultaneously forming or adhering a pipe made of resin or the like to the lowest part of the inner surface of the drain pan, where drain water collects the most, and the thin plate-shaped saucer and the resin foam. This is the general method.

An example of a drain pan of a conventional air conditioner will be described below with reference to FIGS. 2 and 3.

Reference numeral 1 denotes the drain pan body, which is made of resin foam material and has an appropriate thickness, and also serves as a heat insulator. 2 is the saucer and the drain pan body 1
It is constructed by simultaneous formation or adhesion. Reference numeral 2a is a groove having a suitable slope and guiding drain water dehumidified from a heat exchanger (not shown). 2b is a storage part where drain water is collected. Reference numeral 3 denotes a drain outlet, which has a pipe shape and is integrally formed with the drain van main body 1 and the saucer 2. A sealing material 4 seals the joint between the saucer 2 and the drain outlet 3 to prevent drain water from penetrating.

Problems to be Solved by the Invention However, such a structure is always unstable against water leakage from the joint of the drain outlet, and also increases material and processing costs in terms of structure, making it difficult to form. However, it also has the disadvantage that it takes a lot of time.

Therefore, the present invention aims to eliminate water leakage from the drain outlet joint and to reduce the number of parts constituting the drain outlet.

Means for Solving the Problems In order to solve the above-mentioned problems, the drain outlet of the drain pan of the present invention has a part of the inner side saucer in a cylindrical shape with a sealed tip, and can be directly connected to the main body of the drain drain device in that state. It is formed integrally with the resin foam that constitutes the drain port, and then the sealed tip is cut off to form a drain outlet.

Function The present invention can reduce the number of parts by integrating the inner side saucer and the drain outlet, and at the same time, by eliminating the joint part of the pipe that constitutes the conventional drain outlet, the quality against water leakage is improved. It is.

EXAMPLE Hereinafter, a drain pan for an air conditioner according to an example of the present invention will be described with reference to the drawings.

Fig. 1 is a plan view showing an embodiment of the drain pan according to the present invention, Fig. 2 is a cross-sectional view of the drain pan in the process of being molded with the tip of the drain outlet sealed, and Fig. 3 is a plan view of the drain pan in the process of being formed with the tip of the drain outlet sealed. FIG. 3 is a cross-sectional view of the sealed portion. Reference numeral 6 denotes a drain pan body, which is made entirely of resin foam and has a box shape, and is open upward. Reference numeral 6 denotes a saucer which constitutes the inner surface of the drain drainage device 6 and has a suitable inclined surface 6a to allow the drain water 7 to flow easily. 6b is a storage portion that collects the drain water 7 that has flowed down the slope 6a. A cylindrical pipe 8 is formed by molding a part of the storage portion 6b further downward, and the tip thereof is sealed.

The saucer 6 and the drain pan main body 6 are integrally formed with the tip of a cylindrical pipe 8 kept sealed, and the cylindrical pipe 8 is slightly projected from the lower surface 6a of the drain pan main body 5. Reference numeral 9 denotes a drain outlet, which is formed by cutting the sealed portion of the cylindrical pipe 8 protruding from the lower surface 6a to form an opening hole for the drain outlet.

The entire structure of the drain pan has been described above, and the details of the method of processing the drain outlet will now be described. The saucer 6 is made of a resin thin plate and a part thereof is further molded to form a drain outlet 9.
It is difficult to ensure wall thickness because it is used as a When the saucer 6 in such a state and the drain drainage device main body 6 are integrally formed, then.

The tip may become deformed due to temperature and pressure.

To this end, the tip of the cylindrical pipe 8 was sealed and the pipe was integrally formed while maintaining its strength, thereby solving the problem of deformation.

Next, since it cannot be used as the drain outlet 9 in this state, after the integral formation, the sealed end portion is cut with a cutter knife or the like to form a hole that opens downward.

As described above, according to this embodiment, the problem of water leakage is solved by integrally molding the drain outlet with the internal saucer.
Furthermore, as a drain outlet, no special parts are required, leading to resource savings.

As described above, the present invention solves the problem of water leakage from the joint of the conventional structure by integrally molding the saucer and drain pipe, and improves the quality of the drain drainage device.
It also helps conserve resources.

[Brief Description of the Drawings] Fig. 1 is a plan view of a drain drainage device according to the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 is a sectional view taken along line A-A in Fig. 2.
A cross-sectional view of the line, Figure 4 is a plan view of a conventional drain drainage device,
FIG. 6 is a sectional view of the main part of FIG. 4. 6...Saucer, 6...Drain pan body,
6a... Slanted surface, 6b... Storage portion,
9...Drain outlet, 8...Tip sealed cylindrical pipe. 6-・-Saucer 6a -1 can IN+ Sono 5-・-Dresopaso main body

Claims (1)

[Claims] Approximately the center of the inner surface has an inclined recessed part for collecting drain water, and a collecting part for collected drain water is provided at the end of the inclined part,
A part of the bottom of this storage part is a sheet-shaped resin saucer molded to protrude downward into a cylindrical shape with a sealed tip, and the entire saucer is made of resin foam from the bottom side, and the cylindrical tip sealed portion is molded into a sheet-like resin saucer. In a drain pan that is integrally formed in a state that is slightly exposed from the bottom side of the resin foam structure, the tip sealed portion is cut after integrally formed and used as a drain outlet that opens downward. A distinctive method of forming drain pans for air conditioners.