JPH01201215A - Electric cooker - Google Patents

Abstract

PURPOSE:To improve the method to use by executing the cooking only by setting the cooking time with a timer motor even when a rice cooking switch is at any position of a first position switched to the circuit at a rice cooking side or a second position switched to the circuit at a heat-retaining circuit side at the time of cooking. CONSTITUTION:A rice cooking switch 32 has a first position to become a rice cooking condition with the operation of a rice cooking button 8 and a second position switched to a heat-retaining circuit 33 side by the action of the thermosensible substance after the rice cooking is completed. A timer motor 18 executes the timing action even at any of the first position and the second position of the rice cooking switch 32 at the time of cooking. Consequently, even when the rice cooking switch 32 is the first position (rice cooking) and the second position (heat-retaining), the cooking can be executed only by setting the cooking time in accordance with the cooked substance with the timer motor 18. Thus, the trouble to switch the rice cooking switch 32 in order to execute the cooking is eliminated and the method to use can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an electric cooker C having a rice cooking function and a cooking function for cooking baked potatoes.

(b) Conventional technology A single cooker that cooks rice, stews other than rice, and cooks fried noodles is disclosed in Utility Model Publication No. 56-45556 (=
Disclosed. This prior art uses a switch to switch heaters with different calorific values depending on the purpose of rice cooking or cooking, or inserts a thermostat into the heater. There was nothing to set the time, so the emergency C2 side was inconvenient. In addition, for cooking other than rice, such as cooking porridge, etc., a device with a timer for setting the time for energizing the heating element is disclosed in Japanese Utility Model Publication No. 56-46664. The electric circuit of the rice cooker has a rice cooking position where electricity is applied to the main heater (2) and a cooking position (where electricity is applied to the heat retention heater (2) after rice cooking is completed), but when cooking (-
It was necessary to set the energization time of the heater using a heater timer, and to switch an operation part such as a rice cooking button to either the rice cooking position or the warming position. For this reason, it is very troublesome to switch, and if you make a mistake in switching the fc position (second is when you want to start cooking), the rice will be in the cooking mode, or the food to be cooked will be in the keep warm mode. There was a drawback that it could not be heated sufficiently.

(C) Problems to be Solved by the Invention The present invention eliminates the need to switch to one of the above-mentioned positions when cooking, regardless of whether the electric circuit is in the cooking position or the warming position. Simply set the time to 9 hours depending on the food to be cooked, and the cooking will be carried out easily and accurately.

B) Means for Solving the Problems The present invention includes a pot for storing food to be cooked, a cooking heater for heating the pot, and a timer motor for a preset cooking time. A timer device that closes the cooking heater to generate heat and, at the end of the timing operation for the set time, opens the contact to cut off the electricity to the cooking heater; a rice cooking switch having a first position and a second position for cutting off heat generation from the cooking heater and switching to a heat retention circuit after rice cooking is completed, and the timer motor is set to either the first position or the second position of the rice cooking switch during cooking The configuration is such that the timing operation is performed even if there is a problem.

(e) Function The present invention allows the rice cooking switch to be set in the first position (cooking rice) and the second position (keep warm) by simply setting the cooking time according to the food to be cooked using the timer motor (2). And accurate (
Q (f) Embodiment in which cooking can be performed An embodiment of the present invention will be described based on the drawings. Figures 1 to 6 show structural diagrams. o (1) is a cylindrical synthetic resin frame; (2) is inside the frame (1);
The upper part of the outer wall ('') is wrapped around and fixed to the outer pot with a bottom. (4) is the outer pot with a bottom.
1) and a frame cover that fixes the upper periphery of the outer pot (2);
(5) is arranged and fixed to the inner bottom of the outer pot (2), and a cooking heater (6) which also serves as rice cooker is embedded therein. (7)
is a heat sensitive element provided at the inner bottom of the outer pot (2), and has a diameter of approximately 140 mm.
Temperature in °C (cooking completed) (two operation levers (not shown))
Move it. (81, +9) are the rice cooking button and warming button, and when cooking rice, press down on the rice cooking button (8) and move the operation lever. (1α is a pot stored in the outer pot (2), f
iυ is the inner lid that covers the opening of the pot, α2 is the outer pot (2)
fi3 is a thermostat mounted on the bottom surface of the heating plate (5),
It turns off at about 180°C. (2) is a back plate that covers the bottom of the frame (1), and ti9 is a cord winding device.

Component is a timer case attached to the side wall opening of the frame (1), αD is a timer device which is housed and fixed in the timer case and has a timer motor a8, and the timer motor αS is a rice cooking start time set by the user in advance. A function as a reservation timer that cuts off the electricity to the cooking heater (6) during timing and turns on electricity to the cooking heater after the timing ends;
It functions as a cooking timer in which the user sets the cooking time based on the type and amount of food to be cooked, and during timing, the cooking heater (6) is energized, and after the timing is finished, the energization to the cooking heater is cut off. As shown in FIG. 4, the timer motor αa has a movable contact (198-), a first contact (191) that the movable contact closes during rice cooking, and a contact between the timer motor αa and a second contact (
19 (first switch (19) with a movable contact (2)
0a) and during timing during cooking (2) when the movable contact closes;
It operates a second switch (2) having a contact (201)) and a second contact (20C) Y which the movable contact closes during rice cooking. The movable contacts (19a) and (20a) of the first and second switches 9 and (2) are not connected in the "off" position. Flexible (-The front side of the dial is transparent and the pointer is colored. Therefore, the pointer can be set according to the display section provided on the front of the timer case. The first and second switches (111■ movable contacts (1
9a) and (20a) are activated to energize the timer motor □□□ to perform a timekeeping operation. As shown in Fig. 3, the display section @ starts from the "on" position where electricity is applied to the second cooking heater (6) and starts cooking for up to 12 hours in the direction of arrow A (clockwise) from CrIJ to "12". 6 in the direction of arrow B (counterclockwise) between the reservation timer display (24) for setting the time and the ``off'' position that cuts off electricity to the cooking heater (6) from the ``on'' position mentioned above. A cooking timer display section is provided that sets a cooking time of up to 3 hours from "1" to "1" and shuts off electricity to the cooking heater (6) at the "O" position.

Therefore, when you turn the dial Qυ to set the reservation timer display (24 side) to set the rice cooking start time and press down on the rice cooking button (8), the needle will change depending on the timing operation of the timer motor a barrel. Gradually move two steps in the direction of arrow B.

Also, guideline C? 3 toward the east side of the cooking timer display in the direction of arrow B to set the cooking time.
Move two. z, C1) 7), ■ is the front side of the timer case (two timer motors are installed during timekeeping (two timer lamps are lit, two are lit during cooking, two are cooking lamps are lit, and are kept warm). (It is a heat retention lamp that lights up twice, and you can check the lighting by looking through the dial (21J).The problem is the lid.

Next, explanation will be given using two electrical circuit diagrams shown in Fig. 4.

(30 &), (301)) Vi AC power supply terminal, C311
G3 is a pan switch attached to the top surface of the back plate I that opens and closes the heat sensitive body (7) by vertical movement (-), and the pan (IQ) is placed on the top surface of the hot plate (5) and then closed. is the top surface of the back plate I (= the rice cooking switch installed), and the rice cooking button (
It has a first position where the rice cooking state is achieved by the operation 8) and a second position where the heating circuit is switched to the open side by the operation of the heat sensitive element (7) after the rice cooking is completed. In this first position, the movable contact (32a) and the first contact (32b) are closed, and 100V of AC power is applied to the cooking heater (6), and the g
In the 2nd position, the movable contact (32a) and the second contact (320) are closed, creating a series circuit (G) of the heat retention circuit (G) and the cooking heater (6).
2100v is applied.

The rice cooking switch C3 connects its movable contact (32a) to the movable contact (19a) of the first switch (19), and
The contact (321) is connected to one power terminal (30a) and the first contact (2011) of the second switch ■, and the second contact (32C) is the pot switch r311 and the movable contact (201L) of the second switch ■. ) is connected between.

The first contact (191) of the first switch α9 is connected to one end of the cooking heater (6) and the pot switch C311C.
mostatu) (connected between 13 and the second contact (19G)
is connected to the other power supply terminal (301) via a timer motor 0Q and a temperature fuse. Between the second contact (200) of the second switch CG and the first contact (321) of the rice cooking switch r3, there is a heat retention circuit (to) consisting of a series circuit of the controller a3 and the heat retention heater (3). A parallel-connected resistor (c) is connected to the circuit. rice cooking lamp c
! The power is connected in parallel to the cooking heater f611m through a resistor 00, and the resistor is connected in parallel to the thermostat (131).The timer lamp 4 is connected in parallel to the timer motor (180), and the heat retaining lamp ( 2& is connected in parallel to the heat insulation circuit (g).

Next, the operation will be explained. First, when not in use, the pointer is in the "off" position, as shown in Figure 5! - The movable contacts (19a) and (20) of the first and second switches (11,
A) is not connected to any contact and each lamp does not light up. Here, to explain in detail the relationship C between the heat-retaining lamp I28 and the resistor G9, one end of the heat-retaining lamp is always connected to one power terminal (30a), but the other end is connected to the second switch 02. (The IJ is connected through the IJ, and it may be placed in a free end state such as the "off" position. If controller α2 is opened in this state, the impedance at both ends of the heat retention lamp circuit will become high, and the free end side will (It lights up incorrectly when it is grounded due to the ground capacity of 1 (L). Therefore, the heat retention lamp
The pressure at both ends of the heat retention lamp ■ is determined by the resistor Ca placed in parallel in the circuit! It descends to prevent false lighting.

To cook rice in this way, rotate the dial r21J, set the pointer (22 to 1 person), connect the first switch (the movable contact (19a) of 19 to the first contact (191)), and press the rice cooking button ( 8) Press down to close the rice cooking switch G's movable contacts (32a) and the first contact (321) (1st position) Cooking heater (6) (2 energized and the rice cooking lamp c!D lights up and the rice is in the cooking state) When the rice cooking is finished, the heat sensitive element (7) operates and the rice cooking switch 0 movable contacts (3
2&) and the second contact (3?) to close the second position) the movable contact (20!L) of the second switch 6) The heat retention circuit (g) generates heat.

Set the rice cooking start time in advance to, for example, "8" hours, and after timing is finished (= to start rice cooking, turn the dial (211) to set the pointer c23 to "8", and turn the movable contact (19a) of the first switch 9. ) and the second contact (19e), press down the rice cooking button (8) and close the rice cooking switch movable contact (
32a) and the first contact (32b) are closed to energize the timer motor Q8) to perform a timekeeping operation. Eventually, when the timing is finished, the pointer moves to the "on" position (second position, first switch (
The 19 movable contacts (19a) and the first contacts (191) close to start cooking rice.

Also, when cooking, for example, grilling, etc., depending on the type and amount of food, turn the dial to set the cooking time C2 on the pointer, and set the movable contact (19&2) of M1 switch a9.
) and the second contact (19b) are closed, the movable contact (201L) and the first contact (20N+) of the second switch ■ are closed, and the first contact (20b) and the movable contact (20K) of the second switch
) - Nabe Sui') fGIJ - The cooking heater (6) generates heat via the thermostat (13).Then, when the temperature of the pot (it) rises and the temperature near the hot plate (5) reaches 180°C, the thermostat α3 is 0FFI, which prevents fried foods from burning.After that, when the cooking time is over, the guideline is "
0" position, and the movable contacts (19a) and (20&) of the first and second switches ell and 2G are not connected to any contact, and are in a state similar to the "off" position.

At the start of cooking mentioned above, the timer motor 0 mark indicates that the movable contact (32&) of the rice cooking switch C33 is in either the first position or the second position, and continues the timing operation. 1 position (if there is a movable contact (322L)
) and the first contact (32b) - the first switch (13 movable contacts (19L) and the second contact (19c) measure the time; during this time measurement, the temperature of the two pots rises and the second position (2 switches) The movable contact of the second switch (20ILL)
) and the first contact (201)) - the movable contact (32a) and the second contact (32C) of the rice cooking switch 34 - the first switch α]
The clock operates via the movable contact (12a) and the second contact (19).

Also, even if the rice cooking switch G2 is in the second position from the beginning of cooking, the second switch and the rice cooking switch 33
Then, the time counting operation continues via the first switch α9.

(G) Effects of the Invention (2) The present invention provides the following benefits: during cooking (2) the rice cooking switch switches to the rice cooking side circuit (2) or the heating circuit side (1).
Cooking can be carried out by simply setting the cooking time using the timer motor in any of the two second positions. Therefore, there is no need to worry about switching the rice cooking switch to start cooking.

[Brief explanation of the drawing]

Fig. 1 is a front view of the electric cooking appliance of the present invention, Fig. 2 is a sectional view thereof, Fig. 6 is a front view of the dial section, Fig. 4 is an electric circuit diagram, and Fig. 5 is a diagram of the first and second swifts. The connection status of each movable contact and contact, timer lamp, rice cooking lamp,
It is a time chart showing the lighting state of the heat retention lamp. (1)...Frame, (6)...Local heater, Q
G...k%, (17)...Timer device, (1a.
・・Timer motor, ■, $2 Yuichi, (20a) -
...Movable contact, (201)), (20C)...First and second contact, three...Rice cooking switch, (32a)...
・Movable contact, (32b)...First contact in the first position, (30(ri...Second contact O in the second position) Applicant: Sanyo Deniso Co., Ltd. and one other representative Patent attorney Takuji Nishino (1 other person) Figure 1 Figure 2 Figure 3 Figure 5

Claims (1)

[Claims] (1) A pot that stores the food to be cooked, a cooking heater that heats the pot, and a timer motor that starts timing operation and closes contacts to generate heat in the cooking heater for a preset cooking time. a timer device that opens the contact to cut off power to the cooking heater when the cooking time measurement operation ends; a first position that powers the cooking heater during rice cooking; and a heat retention circuit that cuts off heat from the cooking heater after rice cooking is completed. 1. An electric cooking device comprising: a rice cooking switch having a second position to which the rice cooking switch can be switched, wherein the timer motor performs a timing operation even when the rice cooking switch is in either the first position or the second position during cooking.