JPS60145114A - Tosting control apparatus oven toaster - 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]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a one-stroke roasting control device for a toaster oven that can be used for dual-purpose toasting in general households. Conventional configuration and its problems Conventional A-bun toaster has a function that allows you to brown the sea urchin to your desired color in advance, just like a toaster. There was one that had a dost roasting control setting that always baked the clay to the same color. Its configuration is shown in FIG. 1 as shown in FIG.
1-12, and C consisting of a charging circuit and a discharging circuit of a condenser 1) with a time constant approximating the heating and heat dissipation characteristics of the appliance.
R circuit 1, etc., is equipped with a switch SW1, etc. that opens and closes the main circuit when charging is completed, and in micro combi coaters, etc., for example, the first 1-st 1 hour and the non-energized time after 1-1 stroke. There are various methods, such as a configuration in which the second toasting time is calculated based on the first toasting time, but the basic configuration is based on a time switch. In FIG. 1, 2 is a power supply, TMl is a time switch, Ml is a magnet, Q+, Q2 are switch elements, Zl)1. ZD2 is a Zener diode, D1 to D3 are diodes, VR+ is a variable resistor, R1
~R+3 is a resistor, and 01~C4 are capacitors. However, most toaster ovens are designed to allow two ovens to be heated at the same time, but in actual use, two ovens are used at the same time, only one oven, or a combination of these. There are various cases. In this case, the 1-stroke time is different between two sheets and one sheet. As shown in Fig. 2, the A-gin 1--star 'C- of the above-mentioned conventional configuration has double indications for single-coating and double-coating at the locations where the browning adjustment for 1 to 2 is indicated. However, if the above-mentioned H<+-- number of sheets is used in combination in various cases, it is necessary to change the baking color tone i1i] each time. In order to achieve the same browning color regardless of the target or number of sheets, the user must make very precise adjustments. In practice, it is possible to avoid display complication.

[In order to understand the color, most of them have three points of light, medium, and dark as shown in Figure 2.
If the temperature is somewhere in the middle, if the number of sheets to be baked is different, it is best to readjust the settings so that the color will be the same again! It was n. OBJECT OF THE INVENTION The present invention solves the above-mentioned drawbacks of the conventional oven, and provides a toaster oven that can always provide toast with the same brown color regardless of the number of toasts and without the need for difficult adjustments. The purpose of the present invention is to provide a roasting control device. Structure of the Invention In order to achieve the above objects, the toast roasting control device for an A-bun toaster of the present invention includes a charging circuit and a discharging circuit that have a time constant that approximates the heating and heat dissipation characteristics of the cooking chamber, and a charging circuit for the charging circuit. A variable resistor for arbitrarily adjusting the completion time, a resistor connected to the variable resistor, and a toast number selection switch connected in parallel to the resistor.
The present invention includes a power switch drive circuit that opens the power switch when the charging operation of the charging circuit is completed. DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 3 is a circuit diagram of a toast roasting control device for an A-bun toaster according to an embodiment of the present invention, in which the same components as those shown in FIG. 1 are given the same reference numerals. Figure 3 shows J5 (H+, H2 is the heater that heats the cooking device (1!f in the diagram), and SW2 is the magnet 1 to M2.
It is a switch that opens the main circuit for the excitation operation of the
A control circuit is connected to the heaters l-h, 1-12. This control circuit 911 consists of a power source section consisting of a resistor R2, a diode D2, and a capacitor 03, and a charging section consisting of a resistor R4 and a power source C2 having a time constant correlated to the humidity of the cooking cabinet. The circuit section and
Resistors R5 and R12 adjust the set potential in order to switch to the discharge circuit described later when the potential of the switch C2 reaches the set value.
a3 and variable resistor VR1, switching element Q2 that performs the switching operation, and capacitor C2, resistor R++, and resistor R++, which determines the time constant that correlates to the cooking cabinet's late heat characteristic (4+). The discharging circuit consists of a switching element Ch, which is retriggered by the discharge of the capacitor C2, and magnets 1 to M2, resistors Rs and R12, and a variable resistor VR+, which adjust the charging/discharging switching setting potential. The charging time difference J corresponding to the heating time difference between single-sheet firing and double-sheet firing is connected in series to the resistor R14, which is connected in parallel to the resistor R%. 1 is a dynamic f1 characteristic diagram of the above circuit, and FIG. 5 is a diagram of the A-gin 1 equipped with the above circuit. 3a, a perspective view of the operation section of the star;
3b is the power knob, 4 is the 1-1 stroke number selection knob,
5 is a browning adjustment knob. In addition, the power knobs 3a, 3
The switch SW2 is opened and closed by the button b, the switch SW3 is opened by the toast number selection knob 4, and the variable resistance VR1 is varied by the browning color adjustment knob 5. Next, the operation will be explained. First, douse two cards at the same time
When toast toast number selection knob 4 is set to 2 toasts, switch SW3 is activated, and when browning adjustment knob 5 is set to the desired color, the FII terminal of variable resistor VR1 is adjusted accordingly. When the position is determined and the power knob 3a is pressed, the switch SW2 is opened, thereby determining the set potential EvR for switching from charging to discharging. At the same time capacitor c
2 terminal voltage IE c h<begins to gradually increase. Eventually, when the set potential [[vRk is reached, the switch element Q2 operates,
Configure and cover the discharge circuit. The electric charge accumulated in the C conductor C2 is immediately transferred to the terminal type A through the Zener diode ZD+.
At the same time as EC discharges TSJ' and I-voltage ``go'', the circuit of magnet hM2 is formed and the switch S
Leave W2 for a while to complete roasting of C toast. After the roasting is completed, the terminal voltage EC of the terminal C2 gradually decreases through the discharge resistor Ru. Note that the resistance value of the resistor R9 is sufficiently smaller than the resistance value of the resistor R11, so it can be ignored. When toasting occurs again after an arbitrary time period 11 has elapsed, when switch SW2 is closed, the terminal voltage of C2 becomes equal to 1. Repeat.At this time, when dosing for the first time, the time Δ'' for the terminal voltage EC of the Zener 02 to reach the Zener voltage E□. The difference between the time required to reach ΔT2 is the roasting time between when the cooking chamber is at room temperature and the roasting time is 7. It is corrected as a difference of -1, and you get toast with the same brown color.After that, the same correction is done no matter how many times you repeat it, and you get exactly the same brown color.Next, 1-stir one piece at a time. In this case, set the toast browning selection knob 4 to single toast and close switch SW3, press the power knob 3a and close switch SW2, and the set potential '-IR of switch element Q2 will change between single toast and double toast. ΔEyz, which corresponds to the time difference S, becomes lower, and the operation described in the above-mentioned double-sheet firing is performed. Even if the toast is toasted, you can adjust the browning color once without forcing the user to make complicated adjustments (you can always get the same browned toast without any mistakes such as overcooking or undercooking. There is no wastage of energy due to overcooking, etc.

[Brief explanation of the drawing]

Figure 1 is a circuit diagram of a conventional toast roasting control device for a toaster oven, Figure 2 is a circuit diagram of a conventional A-Bund toast control device,

Claims (1)

[Scope of Claims] 1. A charging circuit and a discharging circuit that approximate the heating and heat dissipation characteristics of a cooking chamber and have a time constant, and a variable timer for arbitrarily adjusting the charging completion time of the charging circuit. a resistor, a resistor connected in series with this variable resistor, a resistor connected in parallel with this resistor, a dose 1 number changeover switch, and a power switch drive circuit that opens the power switch when the charging operation of the charging circuit is completed. A--bun 1--star h with
-Stroke roasting system 1III equipment.