JPH0252483B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a rice cooking device that cooks rice and keeps it warm while the rice cooker is housed.

Conventional technology A conventional rice cooking device of this type is, for example,
As shown in Publication No. 33737, it had a structure as shown in Figure 4.

That is, when rice and water are placed in the rice cooker pot 1 and the rice cooker 1 is heated by the heating device 2 to cook rice,
Steam is released from the gap between the lid 3 and the rice cooker 1 in the rice cooker storage 4
Come out inside. The steam filling the rice cooker storage 4 is removed from the exhaust port 5 on the top surface and the exhaust port 6 on the rear surface.
is discharged from. The steam discharged from the exhaust port 6 on the rear side passes through the exhaust passage 7 and is discharged from the exhaust port 8 to the outside of the rice cooking device main body 9.

Problems to be Solved by the Invention However, with such a structure, the steam exhausted is at a high temperature, so there is a risk of burns if the user accidentally comes into contact with the steam, and there are concerns about safety. There was a problem. Furthermore, there was a drawback that steam condensed on the inner wall of the rice cooker storage 4 and the inner wall of the opening/closing door, causing water droplets to adhere to the rice cooker, making them susceptible to corrosion.

The present invention prevents condensation on the main body of the device by cooling the steam generated during rice cooking and discharging it outside the device main body. The purpose is to prevent dew condensation.

Means for Solving the Problems In order to solve the above problems, the present invention provides an exhaust passage having a detector for detecting the presence or absence of steam in the main body of the device, and a steam passageway that is driven by an electric motor and discharges the steam. It is equipped with a discharge device and a delay circuit operated by the output of the detector, and when steam starts to come out, the output of the detector operates the electric motor and the delay circuit, and after the steam disappears, the The motor is configured to operate for a certain period of time based on the output of the delay circuit, and then to stop.

Effect With the above configuration, when steam starts to come out from the stored rice cooker, the steam is guided to the exhaust passage, where the detector detects the steam and operates the electric motor, and the steam exhaust device releases the steam outside the device body. Let it drain. At the same time, the delay circuit operates, so the motor continues to operate for approximately one hour even after the steam has stopped. As a result, when steam is coming out of the rice cooker, the steam is cooled down and discharged by the steam exhaust device.
In addition, since the steam exhaust device continues to operate even after the steam has stopped, the hot air remaining inside the device body is also exhausted, thereby eliminating dew condensation at the exhaust port and the like.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings.

In FIGS. 1 to 3, reference numeral 11 denotes a box-shaped device main body, with a storage cabinet 12 provided at the bottom and a drawer 13 provided at the top. 14 is a rice cooker placed on the drawer 13, a lid 15 of this rice cooker 14 is provided with a steam hole 16, and this rice cooker 1
4 is supplied with power via a power plug 17. 18
is a power outlet provided in the drawer 13, and is connected to the main body 11 of the apparatus via a relay cord 19.

Next, the steam treatment equipment will be explained. Reference numeral 20 denotes an exhaust passage provided in the upper part of the apparatus main body 11, one end of which opens at the front of the apparatus main body 11 as an exhaust port 21, and an electric motor 22 and a fan 23 driven by the electric motor 22 at the other end. It is equipped with Reference numeral 24 denotes a partition plate that divides the exhaust passage 20 into an air passage A and a steam passage B. This partition plate 24 is made of a metal or the like with high thermal conductivity, and is connected to the exhaust port 21.
On the side, air passage A and steam passage B intersect to form a mixing chamber C. 25 is a steam inlet provided in the middle of the steam passage B, and the electric motor 22 is used as a steam detector.
Thermal reed switch 26 connected in series with
The steam inlet 25 is provided at a position facing the steam hole 16 of the rice cooker 14 when the drawer 13 is closed. 27 is a drainage hose,
28 is a dew tray.

29 is a timer switch as a delay circuit,
This timer switch 29 is connected to the timer motor 30.
and a timer contact 31, and the timer contact 31 is opened and closed by the rotation of the timer motor 30. This timer motor 3
0 and timer contact 31 are connected in parallel to electric motor 22 and thermal reed switch 26, respectively.

In the above configuration, the operation will be explained next. When cooking rice first, open the drawer 13, put rice and water into the rice cooker 14, and then open the lid 1 of the rice cooker 14.
5, and plug the power plug 17 into the power outlet 18.
and close the drawer 13. This drawer 13
When closed, the steam hole 16 and the steam inlet 25 face each other.

When rice cooking is started and steam starts to be gradually generated from the steam hole 16, the steam is guided to the steam passage B from the steam inlet 25. At this time, the temperature of the thermal reed switch 26 rises due to the heat of the steam, and when the temperature exceeds the operating temperature, the thermal reed switch 26 is activated.
It is in the ON state, and the electric motor 22 is driven and the timer motor 30 also rotates. When the electric motor 22 rotates the fan 23, the air passage A
Air begins to flow, and this air is mixed with the steam flowing through the steam passage B in the mixing chamber C while cooling the partition plate 24, and the steam is converted into low-temperature air to the exhaust port 21.
The liquid is discharged from the main body 11 of the apparatus. During this time, the timer motor 30 rotates and the timer contact 31
Turn it on. When the rice cooking is completed and the rice is kept warm, steam will no longer be generated, and the temperature of the thermal reed switch 26 will drop, even if the thermal reed switch 36 is turned off.
Since the timer contact is in the ON state, the electric motor 22 and the timer motor 30 continue to operate.
Since the hot air in the steam passage 20 is discharged from the exhaust port 21 by the air flow generated by the rotation of the fan 23, dew condensation does not occur in the exhaust port 21 etc. due to the hot air. Then, when the timer contact 31 is turned OFF due to the rotation of the timer motor 30, the electric motor 22 and the timer motor 30 are stopped. Dew condensed on the partition plate 24 is stored in a dew pan 28 via a drainage hose 27.

Effects of the Invention As described above, according to the present invention, the presence or absence of steam is detected by the detector, and the steam exhaust device is operated, as well as the delay circuit is operated, so that even after the steam is gone, The output of the delay circuit allows the steam exhaust device to operate for a certain period of time, so that when steam starts to come out, the steam can be automatically lowered to a lower temperature and discharged outside the device body, and after the steam is gone, Since the steam exhaust device also operates, the hot air inside the device body can be quickly exhausted, and as a result, it is possible to prevent dew condensation at the steam vent etc. due to the hot air.

[Brief explanation of the drawing]

Fig. 1 is an electric circuit diagram of a rice cooking device showing an embodiment of the present invention, Fig. 2 is a perspective view of the same rice cooking device, Fig. 3 is a longitudinal sectional view of the same rice cooking device, and Fig. 4 is a conventional rice cooking device. FIG. 11...Device main body, 20...Exhaust passage, 22...
...Electric motor, 23...Fan (steam exhaust device), 2
6...Thermal reed switch (detector), 29
...Timer switch, 30...Timer motor, 31...Timer contact.

Claims (1)

[Claims] 1 The device body is equipped with an exhaust passage having a detector for detecting the presence or absence of steam, a steam exhaust device driven by an electric motor to discharge steam, and a delay circuit operated by the output of the detector. When steam starts to be produced, the motor is operated according to the output of the detector, and a delay circuit is operated, and after the steam disappears, the motor is operated for a certain period of time according to the output of the delay circuit, and then stopped. A rice cooker.