JP2002177102A - Energy-saving hot showcase - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce electric power consumption of a hot showcase to be used for a long time. SOLUTION: This showcase is warmed by making combination use of a heater for warming and a thermal storage medium. The showcase is warmed by the heater in the nighttime when electric power charge is low and is warmed by the thermal storage medium in a daytime when the electric power charge is high.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention uses a heat storage material for a hot showcase and can be expected to save energy by utilizing the latent heat of fusion of the heat storage material.

[0002]

2. Description of the Related Art Hot showcases have been widely used in food stores and convenience stores in department stores for the purpose of showing customers the contents of their exhibition while keeping warm foods warm so as not to cool.

[0003] Conventional products mainly use heat retention by a heater. Therefore, when they are used continuously for a long time, such as in a convenience store, the power consumption is not stupid, and the cost is large as operating expenses. You will start weighting.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a product which can be used continuously for a long time and which can reduce the power consumption of a hot showcase. It is.

[0005]

As a means for solving this problem, the present invention relates to a heat storage material comprising a mixture of stearic acid or paraffin, which has a high latent heat efficiency of fusion, and a mixture thereof, and a more efficient heat storage. The timber does this.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION A hot showcase using a latent heat storage material which has a large energy saving effect, maintains stable operation characteristics for a long period of time, can be used repeatedly as many times as possible, and uses a latent heat of fusion with high safety. What you want to do.

[0007]

[Example] Conventionally, in a department store food section, as a showcase that can sell warm food in a warm state,
The hot showcase 1 has been widely used, but with the opening of many long-running convenience stores, the spread of the hot showcase 1 has dramatically expanded.

Most of the hot showcases 1 conventionally used are of the heat-retaining type using a heater 2 as shown in FIG. 1, and generally there are many two-stage types of food shelves 3 as shown in FIG.

There are many convenience stores open 24 hours a day, and the hot showcase 1 is also used while being energized for 24 hours. Therefore, the power consumption becomes enormous and global warming becomes a problem. At present, the product has many negative aspects. On the other hand, according to the present invention, the heat storage material 6
Is intended to reduce the power consumption by half.

In the conventional type, the heater 2 is installed at the top of the food tray 3 to keep the food warm from above. In the present invention, the heater 4 and the heat insulator are provided at the inner bottom of the food tray 3. It is a type that keeps food warm from the bottom unlike the conventional one. If a heat-resistant solidification type is used for the heat insulating material 5 in this case, the heater 4 can also be fixed.

A heat storage material 6 is filled on the upper surface of the heater 4 and a metal plate 7 is mounted thereon. Food is placed on the metal plate 7 and kept warm from the lower part.

[0012] In the nighttime when the electricity rate is low, the food is kept warm by the heater 4 and the heat storage material 6 is heated and charged.
From the heat retention by the heat storage material 6.

Depending on the food to be put in, the upper part may be used together with the upper part, and a switch may be used to enable the use of the upper part.

In the case of the present invention, the heat storage material 6 is mainly made of etearic acid or paraffin, or a mixture of both. If there is a material more efficient than the above heat storage material 6, it is used. By doing so, the energy saving effect is improved.

[0015]

The effect of the present invention is to reduce the power consumption by using a heat storage material together, to reduce the operating expenses and to help prevent global warming.

[Brief description of the drawings]

FIG. 1 is a view showing a conventional hot showcase.

FIG. 2 is a diagram showing a partial cross-section of a saucer portion of the energy-saving hot showcase of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conventional hot showcase 2 Heater part 3 Receiving part 4 Heater 5 Heat insulating material 6 Heat storage material 7 Metal plate

Claims (2)

[Claims] 1. A food tray 3 in a hot showcase 1.
An energy-saving hot showcase in which a heat insulating material 5 and a heater 4 are provided at the bottom of the heat storage material, a heat storage material 6 is filled at an upper portion thereof, and a metal plate 7 is mounted on the heat storage material 6. 2. The hot showcase 1 according to claim 1,
An energy-saving hot showcase in which a heat storage material 6 to be used is a mixture of stearic acid or paraffin having high latent heat efficiency and a mixture of both, and a more efficient heat storage material.