JPS5836989Y2 - refrigerator thermometer - Google Patents

Description

[Detailed description of the invention] This invention relates to a refrigerator thermometer that senses and displays the temperature inside the refrigerator.

Normally, this type of thermometer must sense and display a representative temperature inside the refrigerator, that is, a temperature equivalent to that of the food stored inside the refrigerator.

However, with conventional refrigerator thermometers, warm air from outside the refrigerator flows into the refrigerator during the short period when the refrigerator door is opened and closed when food is put in and taken out, and the temperature inside the refrigerator that is affected by this warm air is sensed. Put it away.

On the other hand, since the food inside the refrigerator has a heat capacity, there is almost no difference in temperature from the temperature before the door is opened or closed.

For this reason, there was a drawback that the temperature displayed on the thermometer was different from the temperature of the food.

Therefore, in order to eliminate such drawbacks, it is possible to use a remote measuring thermometer in which the temperature sensing part of the thermometer is placed in the center of a metal block that has heat capacity, but as is currently the case in the freezing room,
In a refrigerator having a plurality of storage compartments such as a refrigerating compartment, it is necessary to install as many thermometers as the number of storage compartments, or to change the location of the temperature sensing section.

However, in the former case, the cost is extremely high, and in the latter case, it is very time-consuming.

This idea was made to eliminate the above-mentioned drawbacks, and it can accurately display the temperature of food inside the refrigerator.
To provide a refrigerator thermometer that is small in size, can be easily changed in its installation location, and can be manufactured at low cost.

Embodiments of this invention will be described below with reference to FIGS. 1 to 3.

FIG. 1 is a perspective view showing an embodiment of a refrigerator thermometer according to this invention, in which 1 is a transparent container, 2 is a small rod-shaped thermometer,
3 is a solution with a low freezing point.

That is, in this invention, a small rod-shaped thermometer 2 is housed in a transparent container 1 filled with a solution 3 having a low freezing point (for example, 30° C. or lower) such as an aqueous glycerin solution.

Next, an example of the manufacturing method of such a refrigerator thermometer will be described in the second section.
The explanation will be made using both Fig. 3 and Fig. 3.

First, insert one end of the rod-shaped thermometer 2 into the positioning boss 12 of the small rod-shaped thermometer 2 provided at the bottom 11 of the transparent container 1, and then insert the rod-shaped thermometer 2 into the positioning boss 12 of the small rod-shaped thermometer 2 provided at the bottom 11 of the transparent container 1.
-30°C or lower) solution 3 is added to fill the transparent container 1 with the solution 3 having a low freezing point.

Thereafter, the transparent container 1 is sealed with the lid 14, and the container is completed.

In this case, the lid 14 also has a boss 1 for positioning the rod-shaped thermometer 2.
2 is provided, and the other end of the rod-shaped thermometer 2 is inserted therein to prevent the rod-shaped thermometer 2 from moving.

As described above, according to this invention, since the solution 3 with a low freezing point has a heat capacity, it is possible to accurately display the temperature of stored food without being affected by warm air outside the refrigerator due to opening and closing of the refrigerator door.

Furthermore, since the shape is very small and the temperature sensing section is integrated with the display section, the installation location can be changed extremely easily, making it possible to measure the temperature at a desired location within the refrigerator.

Further, the solution 3 in the transparent container 1 has a low freezing point (for example -
30°C), so it can be used not only in refrigerators but also in freezers.

Furthermore, its practical value is extremely great as it has a simple structure and can be manufactured at low cost.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of a refrigerator thermometer according to this invention, and FIGS. 2 and 3 are perspective views of various parts of a transparent container for explaining an example of a method for manufacturing the same thermometer. . 1... Transparent container, 2... Small rod thermometer, 3... Solution with low freezing point. Note that the same reference numerals in the figures indicate the same parts.

Claims (1)

[Scope of utility model registration request] A thermometer for a refrigerator, characterized in that a small rod-shaped thermometer 2 is housed in a transparent container 1 filled with a solution 3 having a freezing point lower than the minimum internal temperature.