JPS61190880A - Energization control device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an energization control device for a toaster oven or the like used in a general household.

2. Description of the Related Art A conventional energization control device for a toaster oven or the like was constructed as shown in FIG. That is, in this FIG. 2, 1 is a heater, and 2 is a contact that is opened by the heater 1.

Reference numeral 3 denotes an interrupter that drives the relay 2.

To explain the operation of the above-mentioned conventional energization control device, after manually closing the contacts of relay 2 and starting energization to heater 1, when the set time set by timer 3 has elapsed, timer 3 starts coiling relay 2. In this conventional energization control device, the output of the heater 1 is always kept constant. Since the bread is heated at a nearly constant and intense amount of heat throughout, the bread loses a lot of moisture. In general, the more moisture the bread contains after roasting, the better the taste.
As mentioned above, the large loss of moisture in bread during roasting has been a major drawback of conventional roasting.

The present invention addresses the above-mentioned problems and aims to reduce the loss of moisture in bread due to roasting and improve the taste of bread after roasting.

Means for Solving the Problems In order to solve the above problems, the present invention includes: a diode connected in series to the heater; a switching element connected to supply current to the heater via the diode; an energization control element connected in parallel with the diode; a first timer that outputs a drive signal to the energization control element for a certain period of time after the energization control element starts energizing the heater; A second timer outputs a drive signal to the switching element to stop energizing the heater when a set time has elapsed after the start of energization.

Operation With the above-described configuration, the first timer drives the energization control element for a certain period of time after the start of energization to the heater, and at this time, the heater is energized full-wave by the energization control element. A film is formed on the surface of the bread that prevents moisture from evaporating. Then, after a certain period of time set by the first timer has elapsed after the start of energization to the heater, the drive signal to the energization control element is stopped, and the heater is energized in a half-wave by a diode. Calorific value decreases,
As a result, the evaporation of moisture in the bread is suppressed due to the film formed on the surface of the bread when the heater is energized at full wave.
This improves the taste of bread after roasting.

EXAMPLE Hereinafter, an example of the present invention will be described based on FIG. In this FIG. 1, 11 is a heater, 12 is a heater 1
1, the contacts are closed manually and the contacts are opened by energizing the coil.

13 is a diode connected in series to the heater 11; 14;
is an energization control element (herein, a thyristor is used, hereinafter referred to as thyristor) connected in parallel to the diode 13, and 16 is a first timer that controls the thyristor 14 for a certain period of time after the start of energization to the heater 11. It outputs a drive signal to the

16 is a second timer, and this second timer 16 drives the relay 12 and stops energizing the heater 11 after a set time has elapsed.

The operation in the above circuit configuration will be explained. For a certain period of time after the start of energization to the heater 11, the first timer 16 outputs a drive signal to the thyristor 14, the thyristor 14 becomes conductive, and the heater 11 is energized full-wave. When the first timer 15 stops sending the drive signal to the thyristor 14 after this certain period of time has elapsed, the thyristor 14 is turned off, and thereafter the heater 11 is connected to the diode 13 until the time set by the second timer 16 elapses. Half-wave energization is performed.

Then, when the time set by the second timer 16 has elapsed,
A drive signal is output from the second timer 16 to the relay 12, which opens the contacts of the relay 12 and causes the heater 11 to open.
The power supply to is stopped.

When the heater 11 is full-wave energized, a film that suppresses moisture evaporation is quickly formed on the surface of the bread, and after the time set by the first timer 16 has elapsed, the energization to the heater 11 is stopped by half-wave energization by the diode 13. Because of the wave energization, the amount of heat of the heater 11 is reduced, and as a result, the evaporation of moisture in the bread is reduced in combination with the above-mentioned coating. Therefore, the taste of bread after roasting is better as the amount of water contained therein is higher, so the present invention can improve the taste of bread after roasting.

Effects of the Invention As described above, according to the present invention, bread can be roasted with less moisture loss, and bread with improved taste due to increased moisture content can be roasted. be.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of an energization control device showing an embodiment of the present invention, and FIG. 2 is a circuit diagram of a conventional energization control device. 11...Heater, 12・Old e, + relay (switching element), 13...Diode, 14
...Thyristor (energization control element), 16...
...first timer, 16...river, second timer. Name of agent: Patent attorney Toshio Nakao and 1 other person/l
-Heater No., Figure /2-m-Relay 13---Diode 14-11 Builster/A

Claims (1)

[Claims] a heater, a diode connected in series to the heater, a switching element connected to supply current to the heater via the diode, an energization control element connected in parallel to the diode, and the heater a first timer that outputs a drive signal to the energization control element for a certain period of time after the start of energization of the heater; and a first timer that outputs a drive signal to the switching element when a set time has elapsed after the start of energization of the heater; and a second timer that stops energizing the heater.