JPS5935385A - Heating and constant-temperature container for electromagnetic cooking 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 Industrial Application The present invention relates to a heating and heat-insulating container for an electromagnetic cooker used in general households.

Conventional configurations and their problems Traditionally, vacuum-insulated thermos flasks have been used as heat-insulating containers, and there are products called jar pots that can heat and keep warm. i'if? The former is cordless and easy to use, but does not have a heating function, while the latter has a heating function but is corded and therefore less usable.

Purpose of the invention By using the present invention in combination with an electromagnetic cooker,
This is a cordless heated and insulated container 'Ctl.

Structure of the Invention The present invention includes an electromagnetic induction coil provided at the bottom of a housing, a metal container provided inside the housing to be thermally insulated from the outer shell, and an electromagnetic induction coil provided on the outer periphery of the metal container. It consists of a heating coil connected to a coil.

DESCRIPTION OF THE EMBODIMENTS Figure 1 is a structural diagram of a part ('i!!') showing the arrangement of the main parts, and Figure 2 is an electrical connection diagram. It is the same member as the one in the figure.

In FIG. 1, reference numeral 1 denotes an electromagnetic cooker 20, a heating and heat-insulating container placed on a normal heating plate, which includes a cylindrical outer shell 3, a metal container 4 provided inside the shell, a non-metallic bottom plate 6, A heating coil 6 (hereinafter referred to as a coil 6) wound around a part of the metal container, a thermostat γ also attached to a part of the container, and a record-shaped electromagnetic induction coil 8 ( Below 11 is a coil 8), a non-conductive magnetic body (ferrite core) 9 and It is composed of a heat insulating material 10 provided around the outer periphery of the container 4 as described in 1a. FIG. 2 shows an electrical wiring diagram of the device shown in FIG. 1, in which a capacitor 11 and a heat-retaining lamp 12 (not shown in FIG. connected at both ends.

In the above configuration, the coil 8 provided at the bottom of the heating and heat-insulating container 1 is placed so as to face the heating coil (not shown) of the electromagnetic cooker 2, and the electromagnetic cooker 2 is brought into an excited state. , an AC high frequency voltage is induced in the coil 8, and when the thermostat is closed, the coil 6 is moved by the high frequency current and the container 4 is heated by the eddy current. Container 4 due to this
The contents of the container, for example water, are heated to a boiling state, but if the opening operating point of the thermostat is set at approximately 95°C, the thermostat γ will open when the boiling state is reached. In this state, since the capacitor 11 is inserted in series with the coil 6, the energy given by the coil 6 to the container 4 is reduced. That is, the capacitance value of the capacitor 8 is determined so as to supply enough energy to compensate for the heat loss lost from the container 4. However, it is difficult to maintain the open state of the thermostat 7, and when the temperature of the container 4 falls and reaches the closing operating point of the thermostat 7, for example 90'C, it becomes heated again and the above operation is repeated. It is something that can be done. The heat retention lamp 12 and the heat lamp 13 are turned on in response to the above heating and heat retention operations.

Note that switching the power from heating to heat retention and maintaining the heat retention state, that is, the method of temperature division, can also be carried out by the following means. In other words, the rectifier smoothing capacitor (
(not shown (hereinafter the same)) is used to form the entire DC power supply, a thermostat) is replaced with a temperature sensor such as a thermistor, and a transistor circuit is used to drive a relay etc. to control the energization to the coil 6. However, the configuration shown in the embodiment of FIG. 2 is the simplest and therefore can be manufactured at low cost.

Note that since the above-mentioned capacitor 11 is for the purpose of suppressing heating energy in a heat-retaining state, it goes without saying that it may be an inductance element, that is, an impedance element.

Effects of the Invention As described above, the basic components of the present invention include an electromagnetic induction coil, a heating coil connected to the heating coil, and a gold-visible container heated by the heating coil and thermally insulated with a heat insulating material. Therefore, when used in combination with an electromagnetic cooker, a cordless heating and heat insulating device is provided which is easy to use, and also has a simple structure and can be manufactured at low cost.

[Brief explanation of drawings]

Fig. 1 is a partial (e) cross-sectional structural diagram showing the arrangement of the main parts of the present invention, and Fig. 2 is an electrical wiring diagram of the same. 8... Electromagnetic induction Koinope 4... Gold I-α container, 6... Heating coil, γ... Thermostat l-111... Impedance element.

Claims (2)

[Claims] (1) An electromagnetic induction coil installed at the bottom of the housing and inside the housing.
A heating and heat-insulating container for an electromagnetic cooker, comprising a metal container provided thermally insulated from an outer shell, and a heating coil provided around the outer periphery of the metal container and connected to the electromagnetic induction coil. (2) The electromagnetic induction coil and the heating coil are connected via a thermostat attached to a part of the metal container, and
The heating and heat-insulating container for an electromagnetic cooker according to claim 1, wherein impedance elements are connected to both ends of the thermostat.