JPS5813264Y2 - freezer - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improved structure of a freezer, in particular, to reduce the formation of frost on the front edge of the cooler, and to facilitate the removal of frost if it forms.

Conventionally, this type of freezer has multiple stages of coolers in order to cool the inside of the refrigerator to extremely low temperatures, such as around -20 degrees Celsius, but when the door is opened and closed, humid outside air enters and much of the air reaches the front end of the cooler. There was frost, which caused problems in the delivery of stored items and containers.

In addition, it was considered to cover the front edge of the cooler with a decorative frame to prevent frost from forming on the front end of the cooler, but even if the frosting time could be extended, defrosting after frosting would require cooling. It was difficult to defrost only the front edge of the cooler, which required stopping operation or heating the cooler.

This proposal was developed in view of these points, and the figure will be explained below.

Reference numeral 1 denotes a freezer body composed of an outer box 2, an inner box 3, and a heat insulating material 4 filled with foam between the two boxes 2 and 3, with a front opening of a storage chamber 5 formed by the inner box 3, etc. It is closed by a door body 6 so as to be openable and closable.

In the storage chamber 5, a plurality of plate-shaped evaporators 9', 9' forming a refrigerant cycle together with a refrigerant compressor 7, a condenser 8, etc., which are disposed at appropriate locations outside the main body 1, are vertically spaced apart from each other. It is located with the following information in mind.

The evaporators 9' and 9 are made of a plate 1 made of aluminum or the like with good thermal conductivity.
A refrigerant flow pipe 11 is attached to the refrigerant flow pipe 11 for heat exchange.The front edge 12 of the refrigerant flow pipe 11 is arbitrarily bent as necessary, and a decorative frame 13 is formed of a heat-poor conductive material such as synthetic resin. covered.

The decorative frame 13 has an elastic body 14 made of a thermally poor conductor such as rubber or synthetic resin interposed between it and the front edge 12 of the evaporators 9' and 9, and also supports the evaporator 9 with a support pin 15 or the like. ′,
9 is removably installed.

This decorative frame 13 is a total evaporator 9 disposed in the storage chamber 5.
Although it is preferable to install the evaporator 9 on the front edge of the evaporator 9' and 9, it is preferable that
' is detachably provided.

This causes frost to form on the front edge 12 of the uppermost evaporator 9', and this frost grows and becomes larger, breaking through the top wall 3A of the inner box 3, or deforming and damaging the evaporator 9' due to the reaction. This is because the danger is particularly great, and such danger can be prevented by providing the decorative frame 13.

16. 16 is placed on the other evaporators 9, 9 which also serve as shelves and on the bottom wall 3B of the inner box 3, except for the uppermost evaporator 9', so that it can be attached and detached as needed. It is an article storage container which is open at the upper surface and is placed with the front end protruding slightly forward of the evaporator 9, and the front wall 16A is formed to be inclined so that the lower part is located at the rear, and the lower front corner part is A protrusion 17 is formed which bulges downward and faces above the opening of another container 16 arranged in the lower adjacent stage.

When the door body 6 is opened and closed, this protrusion 17 is attached to the front wall 16 of the container 16.
When moisture or dissolved water from frost adhering to the front surface of A becomes water droplets and flows down the front wall 16A, this water droplet is prevented from wrapping around the bottom wall 16B of the container 16 and reaching the front end of the evaporator 9 and freezing. Therefore, it is for dripping into the container below this protrusion 17.

This prevents water droplets from freezing in the evaporator 9, freezing the container 16, and making it difficult to take out the container 16.

As described above, in this case, the decorative frame is detachably attached to the front edge of the evaporator, which reduces the formation of frost on the front edge, and furthermore, after frost formation, the decorative frame can be removed to remove the frost. , the number of defrosting operations of the evaporator can be reduced.

Furthermore, if the decorative frame is attached with an elastic body interposed, the decorative frame can be well supported even if there is a slight dimensional error in the position, and the elastic body can reduce the noise of the refrigerant flowing through the refrigerant flow pipe. It is possible to reduce the resonance noise that is transmitted to the decorative frame and generated.

[Brief explanation of the drawing]

FIG. 1 is a schematic vertical cross-sectional view of the freezer of the present invention, FIG. 2 is a cross-sectional view of the main part, and FIG. 3 is an exploded perspective view of the main part. 9... Evaporator, 13... Decorative frame, 14
...Elastic body.

Claims (2)

[Scope of utility model registration request] (1) A plate-shaped evaporator that forms a refrigerant cycle with a refrigerant compressor, etc. is installed in the storage room whose front opening can be opened and closed with a door body, and there is no thermal defect at the front edge of the evaporator. A freezer characterized by a decorative frame made of a conductive material and removably covered. (2) The freezer according to claim 1, which is a registered utility model, in which an elastic body with poor thermal conductivity is interposed between the front edge of the evaporator and the decorative frame.