JPH02242072A - Evaporator for refrigerator - Google Patents

Abstract

PURPOSE:To improve the convection of evaporated moisture so as to prevent dewdrops from being formed, and to reduce a noise by providing inclined surfaces on rails at their rear ends so that a position where an evaporation tray initially abuts against a rear supporting member is different from a position where the former abuts against the latter in the state that the evaporation tray has been inserted, so that a high-temperature pipe is positioned apart at an interval from the bottom surface of the evaporation tray. CONSTITUTION:Rails 15b are slid along a receiving surface 16, and an evaporation tray 8 is inserted through an opening 13. While the rails 15b abut against the receiving surface 16, the evaporation tray 8 does not abut against a high-temperature pipe 9. However, when the inclined surfaces 15c of the rails 15 abut against the receiving surface 16 at the same time as the upper part of the rear end of the evaporation tray 8 rides on a rear supporting member 11, the evaporation tray 8 is inserted while being moved upward, and then prevented from being further inserted by the rear supporting member 11. In this instance, in conjunction with the upward movement of the evaporation tray 8, the high-temperature pipe 9 is positioned inwardly under the evaporation tray 8, and a projection 17 is also positioned as well. Accordingly, when surrounding cold air is moved toward a high-temperature side warmed by a motor-driven compressor, evaporated moisture is simultaneously convected, and hence moisture will not stay in the evaporation tray 8, thereby preventing dewdrops from being formed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an evaporator for a refrigerator that forcibly evaporates defrosting water.

Conventional technology A conventional refrigerator evaporator has an electric compressor for the refrigeration cycle and a high-pressure side pipe arranged in the machine room, and an evaporator plate that houses the high-pressure side pipe and can be inserted and removed from the front opening of the machine room. A device has been proposed that includes a guide support that guides the evaporating dish toward the vibrator from the front opening.

The guide support not only partitions the left and right sides of the evaporating dish in the vertical direction, but also brings the high-pressure side pipe into contact with the evaporating dish. These structures are disclosed in Japanese Utility Model Publication No. 68-54617.

Problems to be Solved by the Invention However, in the conventional configuration, the left and right sides of the evaporating dish are covered with guide supports, so in order for the heat generated here to convect toward the electric compressor side, there is no opening for the insertion and removal of the evaporating dish. Since we have no choice but to introduce colder air, convection is poor and
In some cases, the evaporated moisture adhered to the surrounding area and became dew, staining the floor surface. Additionally, because the high-pressure side pipe is connected to the electric compressor, it vibrates, and this vibration comes into contact with the evaporating dish, causing noise to be generated in the surrounding area.

In view of the above-mentioned problems, the present invention provides an evaporator for a refrigerator that improves convection, prevents the generation of dew, and produces less noise.

Means for Solving the Problems The evaporating device for a refrigerator of the present invention includes an evaporating dish that is detachably installed in the machine room of the refrigerator, and a meandering refrigeration system that evaporates defrosting water, etc. in the evaporating dish. A high-temperature pipe of the cycle, a pair of holders having a space between the floor surface and the top surface of the machine room into which the meandering part of the high-temperature pipe is inserted and held, and the rear end of the evaporating dish installed across the holders. a mounting base to which the holder and the rear support piece are attached and to which the electric compressor is attached; and a mounting base that is attached to the left and right sides of the front opening of the machine room and comes into contact with the side rails of the evaporating dish. The side rails of the evaporating dish are formed parallel to each other with an inclined portion interposed so that the front side is low and the rear side is high.

In order to position the high-temperature pipe at a distance of υ from the bottom of the evaporating dish, the sloped surface is arranged so that the initial contact position between the rear support piece and the evaporating dish is different from the contact position when the evaporating dish is inserted. It is provided at the rear end.

Operation With the above configuration, the machine chamber is not divided by the holder and communicates through the space, so that air can be convected from the low temperature side to the high temperature side toward the electric compressor. Furthermore, since the high-temperature pipe is held without contacting the evaporating dish, the vibrations of the electric compressor are not transmitted to the evaporating dish and do not become a source of noise.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 8.

In the figure, 1 is the main body of the refrigerator, which has a door 2 at its front opening. A machine room 3 is formed in the lower part of the main body 1. 4 is the top surface of the machine room 3, and the front surface is a flat surface 4a.
An inclined surface 4b is provided at the rear. On the rear side of the machine room 3, an electric compressor 6 of the cooling system is attached to a mounting base 6 that connects the left and right sides of the machine room a via a cutting material (not shown). In addition, an evaporation tray 8 is installed in this machine room 3 to collect defrost water in the refrigerator, which is guided by a drain hose 7. A pipe 9 is provided.

This high-temperature pipe 9 extends from the rear to the front, meanderes, and then returns to the rear again. 1° is a pair of holders for holding the high temperature pipe 9, and is provided with a groove 10a into which the meandering portion 9a of the high temperature pipe e is inserted and a claw 10b for locking the high temperature pipe 9. Further, this holder 1o has parallel pieces 1oo and 1od having different heights in the vertical direction, and the groove 10a is formed in the lower piece 10G.

The higher pieces 10d both extend toward the electric compressor 6 and are engaged by a rear support piece 11 on which the rear end of the evaporating dish 8 is placed. That is, a leg 11a is formed extending forward from the rear support piece 11, flanges 11b projecting upward are provided on both sides of the leg 11a, and the piece 10d is positioned between these seven ramps 11b. and,
A claw 1of is extended from the wall 10 forming the step of the piece 100.10d of the holder, and a claw 10q extending downward from the piece 10d is formed, and the locking piece 11o extending from the leg 11a. , Nail 10! The high-temperature vibrator 9, the holder 10, and the rear support piece 11 are temporarily fixed in advance through the hole 11d through which the high-temperature vibrator 9, holder 10, and rear support piece 11 are assembled. Note that the high-temperature pipe 9 may be connected to the electric compressor 6 or other cooling system by brazing later. This pre-assembled item is then attached to the mounting base 6 with screws 12. At this time, it is sufficient to work from the back side of the main body, that is, the back side of the machine room 3. In addition, the mounting base 6 is bent into a substantially V-shape to provide strength, and rather than being mounted on the 7 langes 6a on the upper end side, a space is provided between the floor A of the installation location and the high-temperature pipe 9. ing. Reference numeral 13 denotes an opening through which the evaporating dish 8 is inserted and removed from the front of the machine room 3.

A pair of front support pieces 14 are provided on the left and right sides of this opening 13, and the supports that come into contact with a rail 16 consisting of seven flanges extending horizontally on the side of the evaporating dish 8 have surfaces 16 parallel to each other. It is set up. The rail 16 has parallel rails 1sa and 1esb with the tip side at a lower position and an inclined surface 15c connecting both rails.

The surface 16 of the receiver extends in the front-rear direction, and a projection 17 extending into the side wall 8a of the evaporating dish 8 is formed. Further, an inclined surface 18 is formed at the rear end 8b of the evaporating dish 8 and is positioned upward toward the rear. Also,
The vertical movement of the evaporating dish 8 is caused by the piece 10d of the holder 1o.
A spring piece 19 extending downward from the evaporating dish 8 and a spring piece 20 extending upward from the front side of the side wall 8a of the evaporating dish 8 contact the side wall 8 of the evaporating dish 8 and the front support piece 14 to provide elastic support. Ruru.

In such a device, the evaporating dish 8 is inserted through the opening 13 by sliding the rail 1sb along the receiving surface 16. While the rail 15b is in contact with the receiving ff surface 16, the evaporating dish 8 is prevented from contacting the high temperature pipe 9. Then, when the upper part of the rear end of the evaporating dish 8 rests on the rear support piece 11 and the inclined surface 16c of the rail 16 comes into contact with the receiving surface 16, the evaporating dish 8 is moved upward and inserted into the rear support piece 11. 11 prevents further insertion.

At this time, as the evaporating dish 8 moves upward, the high temperature pipe 9 is located inward and the protrusion 17 is also located.

As a result, the moisture evaporated in the evaporating dish 8 is simultaneously convected when the surrounding cold air moves to the high temperature side heated by the electric compressor, so that moisture does not accumulate and become dew. It is. Further, since the evaporating dish 8 is prevented from shifting to the left or right by the protrusions 17, it will not come off and fall during transportation. Furthermore, the high temperature pipe 9 is connected to the evaporating dish 8.
Since it can be set so that it does not come into contact with the electric compressor 6, vibrations from the electric compressor 6 are not transmitted to the evaporating dish 8 and become a source of noise.

Furthermore, high temperature pipe 9. Holder 10. Since the rear support piece 11 can be assembled in advance, assembly work efficiency is also improved.

Further, when removing the evaporating dish 8, the operation is reverse to the above-mentioned insertion.

Effects of the Invention As is clear from the above embodiments, the present invention comprises an evaporating dish that can be inserted into and removed from the machine room of a refrigerator, and a meandering refrigeration cycle that evaporates defrosting water, etc. in the evaporating dish. a high-temperature pipe, a pair of holders having a space between the floor surface and the top surface of the machine room for inserting and holding the meandering portion of the high-temperature pipe, and a pair of holders installed across the holders to hold the rear end of the evaporating dish. a rear support piece for supporting, a mounting base to which the holder and the rear support piece are attached and an electric compressor is attached, and a pair of mounting bases to which the electric compressor is attached and which are attached to the left and right sides of the front entrance of the machine room and abut against the side rails of the evaporating dish. The side rails of the evaporating dish are formed in parallel with the front support piece of the evaporating dish through an inclined part so that the front side is low and the rear side is high, and the high temperature pipe is positioned at a distance from the bottom surface of the evaporating dish. An inclined surface is provided at the rear end of the side rail so that the initial abutting position of the rear support piece and the evaporating dish is different from the abutting position when the evaporating dish is inserted, Since the machine room is not divided by a holder, when the cold air convects to the side heated by the electric compressor, the evaporated moisture can be moved at the same time, so dew does not form on the top of the machine room. Also, evaporating dish Kll! i
Since the hot pipes are not in contact with each other, the vibrations of the electric compressor are not transmitted, so there is no noise source, and a quiet refrigerator can be provided.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an evaporator for a refrigerator showing an embodiment of the present invention; Fig. 2 is an exploded perspective view showing the relationship between the evaporating dish, the holder, and the high-temperature pipe shown in Fig. 1; Fig. 3 is the same; FIG. 4 is an exploded perspective view of the holder, high-temperature pipe, and rear support shown in FIG. 1, and FIG. 6 is a perspective view showing the assembled state of FIG. 4. Figure 6 is a perspective view showing how the holder and rear support are attached, Figure 7 is a side sectional view showing the front part of the machine room of the same refrigerator, and Figure 8 is the rear part equivalent to Figure 7. FIG. 3... Machine room, 8... Evaporation dish, 9...
...High temperature pipe, 1o... Holder, 11.
... Rear support piece, 6 ... Mounting base, 16
...)...Side rail, 14...Front support piece. Name of agent: Patent attorney Shigetaka Kurino and one other person

Claims (1)

[Claims] An evaporation plate that is removably installed in the machine room of a refrigerator, a high temperature pipe of a refrigeration cycle that is formed in a meandering manner to evaporate defrosting water, etc. in the evaporation dish, and the meandering part of this high temperature pipe is inserted and held. A pair of holders having a space between a floor surface and a top surface of a machine room, a rear support piece installed across the holders to support the rear end of the evaporating dish, and a pair of holders and a rear support piece that are attached to each other and support the rear end of the evaporating dish. It comprises a mounting base on which an electric compressor is mounted, and a pair of front support pieces that are mounted on the left and right sides of the front opening of the machine room and abut against the side rails of the evaporating dish,
The side rails of the evaporating dish are formed parallel to each other through an inclined part so that the front side is low and the rear side is high, and the rear support piece and the evaporating dish are arranged so that the high temperature pipe is positioned at a distance from the bottom surface of the evaporating dish. An evaporator for a refrigerator comprising an inclined surface at the rear end so that the initial contact position is different from the contact position when the evaporating dish is inserted.