JPS60845Y2 - Dryer for dishes etc. - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a dryer for tableware, etc., in which a heater is controlled ON and OFF by a temperature detection element such as a thermostat to maintain the inside of the drying chamber at a temperature suitable for drying.

Generally, the temperature inside the drying room for efficiently drying tableware is said to be approximately 60°C, and in order to maintain this optimum drying temperature at a constant temperature, a temperature sensing element such as a thermostat is used to control the heater on and off. It is well known that

However, in conventional dryers, since the temperature sensing element is placed in a position where it directly receives radiant heat from the heater, there is a problem that the optimum drying temperature cannot be obtained due to seasonal fluctuations.

In other words, the outside temperature (the temperature inside the drying room before using the dryer) differs greatly between winter and summer, and in order to obtain the optimum drying temperature, the time when electricity is applied to the heater is increased in winter;
In addition, in the summer, it must be shortened, but in conventional dryers, the heater energization time is always constant regardless of the fluctuations in the outside temperature, and even if the outside temperature is high,
Even if the temperature is low, the temperature sensing element controls the heater to turn on and off for a certain period of time regardless of the temperature.

In other words, since the temperature sensing element directly receives the radiant heat from the heater, it is turned on and off based only on the temperature of the heater, regardless of the outside temperature.

Therefore, in conventional dryers, the temperature inside the drying chamber falls below the optimum drying temperature in the winter, and rises above the optimum drying temperature in the summer, reducing drying efficiency. .

The present invention was developed focusing on the above points, and aims to provide a dryer for tableware, etc. that can maintain the optimum drying temperature in the drying chamber even when the outside temperature fluctuates. Examples thereof will be described with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes a main body of the dish dryer, which has an intake hole 2 for taking in outside air on the lower surface, and a front frame 6 to which a door 4 and an operating knob 5 are attached is fixed with screws to the front surface.

Reference numeral 7 denotes a bottom plate that partitions the machine room 8 and the drying room 9, and a louver-shaped hot air outlet 10 is provided around the central raised portion.

Reference numeral 11 denotes a heater case arranged in the machine room 8, which is attached to the center of the lower part of the bottom plate 7, and a substantially C-shaped coil heater 13 is installed in the center of the interior via an insulator 12.
is provided.

14 is a temperature detection element (thermostat) that controls ON/OFF of the heater 13; This temperature sensing element 14 is provided with a gap outside the heater case 11 so as not to be directly hit by the radiant heat of the heater 13, and is also provided at the intake hole 2 so that it is exposed to the outside air from the intake hole 2.
It is located nearby and directly above.

15 is a filter provided in the intake hole 2, and 16 is an outside air passage hole provided in the heater case 11.

With the above configuration, when the dryer main body 1 starts operating, the heater 13 generates heat, and the hot air reaches the drying chamber 9 as shown by arrow A in FIG. dry.

Then, the temperature detection element 14 is activated so that the temperature inside the drying chamber 9 becomes the optimum temperature for drying, and the heater 13 is turned on and off.
F control is performed, and this heater 13 is turned on.
, OFF control (the time during which the heater 13 is turned on and off by the temperature detection element 14) differs depending on the temperature of the outside air.

That is, the temperature sensing element 14 indirectly receives the radiant heat of the heater 13 via the heater case 11, and also comes into contact with a portion of the outside air as shown by the arrow in FIG. Increase the energization time to
On the other hand, when the outside temperature is high, the time period during which the heater 13 is energized is shortened to keep the optimum drying temperature in the drying chamber 9 constant.

In other words, the temperature detection element 14 operates by detecting not only the radiant heat of the heater 13 but also the outside temperature entering through the intake hole 2.

As mentioned above, in this invention, the temperature detection element detects not only the radiant heat of the heater but also the outside temperature, so even if the outside temperature fluctuates, the inside of the drying chamber can be kept at the optimal temperature for drying dishes, etc. can be dried efficiently.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view of a dryer main body showing an embodiment of the present invention, Fig. 2 is a sectional view taken along line A-A' in Fig. 1, and Fig. 3 is a cross-sectional view taken along line A-A' in Fig. 1. FIG. 1... Dish dryer body, 2... Intake hole, End... Machine room, 9... Drying room, 11...
... Heater case, 13 ... Heater 14 ... Temperature detection element.

Claims (1)

[Scope of utility model registration request] A drying chamber for storing the material to be dried; a machine room equipped with a heater and a temperature detection element for controlling ON/OFF of the heater; an intake hole for introducing outside air into the machine room; A heater case is provided that covers the heater so that the temperature does not come into direct contact with the heater, and the temperature sensing element is provided with a gap from the heater case,
A dryer for dishes, etc., in which the air intake hole is provided directly below the temperature sensing element.