JPH0442709Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) This invention relates to an improvement in a show case for refrigerating and/or heating soft drinks, coffee drinks, etc. and selling them.

(Prior Art) Conventionally, as this type of show case, the one shown in FIG. 2 is known. In the figure, 1 is the main body of the case, inside which there are refrigerators 2, 3 and a hot storage 4, each with a door 5, which can be opened and closed.
6 and 7 are installed. 8 is a vertical column provided on the front side of the case body 1, and 9 is a horizontal column that partitions the hot storage 4 together with the upper part of the column 8. The glass of each door is equipped with a coated heater to prevent condensation, and heaters are also attached to the upper and lower inner surfaces of the pillars 8 and the inner surfaces of the pillars 9.
FIG. 3 shows the conventional circuit configuration of these heaters, in which 10, 11, 12 are the doors 5,
Heaters for glass parts 6 and 7, 13, 14, 15
indicates the lower and upper parts of column 8 and the heaters of column 9;
16 is a heater for heating the hot storage 4, 17 and 18
is a switch. When using the hot storage 4 as a refrigerator, the heater 16 can be turned off with a switch 18, and the heaters on the glass portion and pillars can also be turned off with a switch 17 when the humidity of the operating atmosphere is low. Note that 19 is a power source.

(Problem that the invention aims to solve) In the conventional case, when the hot storage is used for its original purpose and the switch 17 is turned on when the temperature of the operating atmosphere is high, the glass on the door 7 of the hot storage There was a problem in that the surface, the upper part of the pillar 8, and the surface of the pillar 9 became unnecessarily high in temperature, which caused discomfort to the touch of those parts, and furthermore, electric power was wasted.

The purpose of the present invention is to solve the above-mentioned problems, and therefore, to provide a show case that does not make the door glass of the refrigerator or the pillars of that part unnecessarily high temperature, and can save electric power. That's true.

(Means for Solving the Problems) The structure that characterizes the show case according to the present invention is that it has a refrigerator and a heating compartment, and the heating compartment can also be used as a refrigerator, and its front side is a part of the front vertical column. The door heaters 10 and 11 for preventing dew condensation of the refrigerator and the heaters 13 on the vertical columns other than the above-mentioned part are turned on by a first switch 17 when the humidity of the operating atmosphere is high. Furthermore, a door glass heater 12 which is turned off when the humidity is low and is used to prevent dew condensation in the refrigerator, a heater 14 provided on a part of the vertical column, and a heater 15 provided on the horizontal column are provided.
is connected via a second switch 20 to a circuit that is turned on and off by the first switch 17, and the second switch 20 is linked to the switch 18 for operating the heater of the refrigerator, so that the switch 18 When the switch 18 is on, it is off, and when the switch 18 is off, it is on.

(Function of the means for solving the problem) In the case according to the present invention, when the heating heater of the hot storage compartment is on, each heater for preventing dew condensation in the hot storage part is turned off, and the heating heater When it is off, that is, when it is used as a refrigerator, the switch of the heater for preventing condensation is turned on. Therefore, when the humidity of the operating atmosphere is high, it is turned on along with the other heaters for preventing condensation, and the humidity is high. When the temperature is low, it is kept off along with the other heaters. Therefore,
When the heater for heating is on, the heater for preventing dew condensation in the hot storage part does not turn on.

(Embodiment) Next, an embodiment of the present invention will be described with reference to the drawings, in which the same members as those of the prior art described above with reference to FIGS. 2 and 3 are designated by the same reference numerals. FIG. 1 shows the main parts of the show case according to the present invention. In this show case, the heaters for each door glass and the heaters attached to the pillars are turned on. Turn off switch 17 and turn on heater 16 for heating refrigerator 4. Off switch 18
is provided.

Furthermore, in this case, as shown in FIG.
Turn on 15. Equipped with a switch 20 for turning off,
Moreover, as the switch 20 is indicated by a dotted line 21,
It is linked to the switch 18 of the heater 16 of the refrigerator 4, and when the switch 18 is on, the switch 20 is
is turned off, and when switch 18 is turned off, switch 20 is turned on.

Therefore, when the hot storage 4 is used for hot storage, the switch 18 of the heating heater 16 is on, so the switch 20 is turned off, and when the atmospheric humidity is high, turning on the switch 17 closes the doors 5 and 6. The glass surface and the bottom of the pillar 8 are connected to respective heaters 10 and
1 and 13, and no dew condensation occurs. In that case, when the atmospheric humidity is low, switch 17
is turned off, so the glass surface of each door and the heater of each pillar are not energized, but no dew condensation occurs.

When the hot refrigerator 4 is used for refrigeration, the switch 18 of the heater 16 is off, so the switch 20 is turned on, and when the atmospheric humidity is high, the switch 17 is turned on, and the glass surface of each door and The heaters on each pillar are energized to prevent condensation from forming on them. In this case, when the atmospheric humidity is low, if the switch 17 is turned off, the glass surface of each door and the heater of each pillar are not energized, but no dew condensation occurs.

(Effect of the invention) Therefore, according to the invention, when the heater of the hot storage is on, the heater for preventing condensation on the door glass of the hot storage and the pillars in that area is not energized, so that the heater in that area is This prevents unnecessary high temperatures. In addition, all the condensation prevention heaters are turned off when the humidity of the operating atmosphere is low, so there is no unnecessary heating, and as mentioned above, there is no unnecessary heating of the hot storage area, so the power consumption is reduced. It also saves money.

[Brief explanation of the drawing]

FIG. 1 is an electrical circuit diagram showing essential parts of a show case according to the present invention, FIG. 2 is a perspective view of the show case to which the present invention relates, and FIG. 3 is an electrical circuit diagram of a conventional show case. In the figure, 4... warm storage, 12... hot storage door glass heater, 14, 15... column heater, 16... heating heater, 18... heating heater switch,
20...Switch, 21...Interlocking line.

Claims (1)

[Scope of utility model registration request] In a show case that has a refrigerator and a hot storage, the hot storage is configured so that it can also be used as a refrigerator, and the front side of the hot storage is partitioned by a part of a front vertical pillar and a horizontal pillar. A door glass heater for preventing condensation of the refrigerator and a heater provided in a portion other than the part of the vertical column are turned on by a first switch when the humidity of the operating atmosphere is high and when the humidity is low. Furthermore, the door glass heater for preventing dew condensation of the refrigerator, the heater provided on a part of the vertical column, and the heater provided on the horizontal column are turned on and off by the first switch. The second switch is connected to a circuit that is operated via a second switch, and the second switch is linked to a switch for operating the heating heater of the refrigerator, and is turned off when the operating switch is on, and turned off when the switch is off. A show case characterized in that it is configured to be turned on.