JPH01310282A - Freezer - Google Patents

Abstract

PURPOSE:To automate defrosting work and permit the prevention of missing of a frost collecting plate by a method wherein a stepwise drainage groove for receiving drain water and guiding it to the outside of a freezer is provided at the position of the peripheral rim of the upper surface opening of the main body of the freezer and the frost collecting plate for defrosting is provided in the drainage groove while a heater is provided integrally with the frost collecting plate. CONSTITUTION:A recessed step 26 is formed at the position of the peripheral rim of the upper surface opening 25 of the main body 11 of a freezer and a stepwise groove plate 27 as well as a side plate 28 are mounted on the step 26 to form the drainage groove 29 of drain water. A frost collecting plate 30 for defrosting, which is provided with a chevron type section substantially, is fixed to the upper part of the groove plate 27 while one end of the frost collecting plate 30 is contacted with the surface of the side plate 28 closely. A heater 31 for defrosting is embedded integrally in the other end of the frost collecting plate 30 to heat the same plate. According to such a constitution, defrosting work may be effected automatically by the control of the heater 31 without removing the frost collecting plate 30 while the frost collecting plate 30 is provided so as to be fixed to an inner casing 13 and, therefore, the missing of the plate 30 may be prevented surely.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a freezer such as a freezer showcase for storing frozen products such as ice cream.

(Conventional technology) For example, it stores frozen products such as ice cream.

For freezers such as frozen showcases to be exhibited, the third
As shown in the figure, a frost collecting plate 3 is removably installed on the periphery of the upper opening 2 of the freezer body 1, and when frost 4 adheres to the frost collecting plate 3, it is removed as appropriate to remove the frost 4. was being carried out.

(Problems to be Solved by the Invention) However, with such a configuration, the frost collecting plate 3 must be removed to defrost, and this defrosting work is troublesome.

Furthermore, since the frost collecting plate 3 is removable, there is a risk that it may be lost.

This invention was made in view of the above-mentioned circumstances, and its purpose is to provide a freezer that allows easy defrosting work and prevents loss of the frost collecting plate.

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a step-shaped drainage groove in the peripheral area of the upper opening of the freezer main body to receive drain water and guide it to the outside. A frost collecting plate for defrosting is provided in the holder, and a heater is provided integrally with the frost collecting plate.

(Function) According to this configuration, the frost adhering to the current collector plate during normal operation is melted by the heater during defrosting operation, and the drain water is drained to the outside via the drain, thereby defrosting work is performed. can be automated, making defrosting work easier.

Further, the current collector plate is fixedly provided in the inner box, and loss of the current collector plate can be prevented.

(Example) An example of the present invention will be described below with reference to FIGS. 1 and 2.

FIG. 1 shows a schematic configuration of the entire freezer, and 11 is the freezer main body. The freezer main body 11 is formed of a heat insulating panel in which a heat insulating material 14 is attached between an outer box 12 and an inner box 13 whose upper surfaces are opened.

Further, a transparent display section 15 having a substantially trapezoidal cross section is provided at the upper part of the freezer main body 11. A transparent glass plate 16 is disposed on the front side of the transparent display section 15. Further, a product entrance/exit 17 is formed on the back side of the transparent exhibition section 15, and an opening/closing door (transparent section) 18 is provided in this entrance/exit 17 so as to be openable and closable. Note that an illumination device 19 is provided in the upper part of the transparent exhibition section 15 .

Furthermore, a product holding plate 20 is disposed at the upper part of the freezer main body 11, and this product holding plate 20 has a plurality of mounting holes 2.
1 is formed. An ice cream container 22 containing a frozen product such as ice cream is attached to these attachment holes 21 in a suspended state. It is partitioned into an upper chamber 23 and a lower chamber 24.

A recessed step 26 is formed at the periphery of the upper opening 25 of the freezer main body 11, and a stepped groove plate 27 and a side plate 28 are attached to this step 26 to allow drainage of drain water. A groove 29 is formed. These groove plates 27 and side plates 28 are integrally formed with the inner box 13 by simultaneous urethane foaming.

Further, on the upper part of the groove plate 27, a defrosting current collector plate 3 having a substantially mountain-shaped cross section is provided.
0 is fixed, and one end side of this current collector plate 30 is connected to the side plate 2.
It is closely attached to the surface of 8. A defrosting heater 31 is integrally embedded in the other end of the current collector plate 30 to heat the current collector plate 30.

Further, a cooling pipe 32 for cooling the inner box is buried in the inner box 13, and the cooling pipe 32a disposed at the top abuts the inner surface of the side plate 28, and the current collecting plate 32 It is supposed to cool down.

Next, the operation of the above configuration will be explained.

The refrigeration cycle disposed within the freezer main body 11 alternately repeats normal operation and defrosting operation at fixed time intervals by a timer circuit. During normal operation, each cooling pipe 32, 32a
The refrigerant flows through the heater 31, and the heater 31 is kept in an off state. Thereby, the lower chamber 24 of the freezer main body 11 is cooled by the cooling pipe 32, and the current collector plate 30 is cooled by the cooling pipe 32a. At this time, for example, the opening/closing door 18
Moisture in the external fresh air that has flowed into the upper chamber 23 of the freezer main body 11 with the opening and closing operations of the freezer body 11 adheres to the surface of the current collector plate 30 as frost.

Further, during the defrosting operation, the operation of the refrigeration cycle is stopped and the heater 31 is energized.

As a result, the current collector plate 30 is heated by the heater 31, and the frost adhering to the current collector plate 30 is melted and used as drain water.

This drain water flows through the drain groove 29 and is drained to the outside.

According to such a configuration, defrosting work can be performed automatically without removing the current collector plate 30 by controlling the refrigeration cycle and heater 31 by the timer circuit, thereby improving defrosting workability. I can do it. In addition, since the current collector plate 30 is fixedly provided in the inner box 13, this current collector plate 30
It is possible to reliably prevent the loss of. In addition, there is no need for a defrost cycle during the refrigeration cycle, the refrigeration cycle can be stopped,
Since defrosting operation can be performed by energizing the heater 31, electricity costs during defrosting can be reduced. Moreover, it has a simple structure in which a drain groove 29 is provided at the peripheral edge of the upper surface opening 25 of the freezer main body 11, a current collector plate 30 is provided in the drain groove 29, and a heater 31 is provided integrally with the frost collector plate 30. , the cost can be kept low without an increase in the number of parts.

〔Effect of the invention〕

As explained above, according to the present invention, a stepped drain groove is provided at the peripheral edge of the upper opening of the freezer body to receive drain water and guide it to the outside, and a frost collection plate for defrosting is installed in the drain groove. In addition, by installing the heater integrally with the frost collecting plate, the defrosting work is automated, making it easy to defrost, and since the frost collecting board is fixedly installed in the inner box, there is no chance of losing the frost collecting board. This has the effect of preventing

[Brief explanation of the drawing]

FIG. 1 and FIG. 2 show one embodiment of the present invention.
The figure is a vertical cross-sectional view showing a schematic structure of the entire freezer, FIG. 2 is a vertical cross-sectional view showing a schematic structure of main parts, and FIG. 3 is a vertical cross-sectional view showing a conventional structure. DESCRIPTION OF SYMBOLS 11... Freezer body, 12... Outer box, 13... Inner box, 25... Top opening, 29... Drain groove, 30...
...frost collecting plate, 31...heater, 32...cooling pipe. Figure 1

Claims (1)

[Claims] In a freezer including a freezer body consisting of an outer box and an inner box, and a cooling pipe for cooling the inner box and a frost collection board for defrosting, drain water is received at the peripheral area of the upper opening of the freezer body and flows to the outside. A freezer characterized in that a stepped drainage groove is provided, the frost collecting plate is provided in the drain groove, and a defrosting heater is provided integrally with the frost collecting plate.