JPS62577Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a heat-retaining device such as a rice cooker and a heat insulator.
In particular, it is an object of the present invention to provide a heat-retaining device that does not cause temperature control errors even when attached to the main body a magnetically attachable and detachable accessory such as a holder.

Conventionally, there are many rice cooker and heat insulators on the market that use thermal reed switches to control the temperature, but in recent years, they have been used by attaching them to the metal outer shell of the appliance body using magnets. A Yamoji receiver has been developed, and as shown in Figure 3, a magnet 2 attached to a Yamoji receiver 21
2 is adsorbed near the thermal reed switch 24 housing part 23 outside the appliance body, the magnetic force of the magnet 22 will reach the thermal reed switch 24 and change the control temperature, making it impossible to maintain an appropriate heat retention temperature. There were flaws.

The present invention solves the above-mentioned drawbacks of the conventional technology, and embodiments of the present invention will be described below with reference to FIGS. 1 and 2.

In FIGS. 1 and 2, reference numeral 1 denotes a control device that opens and closes contacts using magnetic force, such as a thermal reed switch, which is fastened to a metal fitting 3 welded to an outer pot 2 with screws. 4 is a heating plate fixed to the inner bottom of the outer pot 2, and 5 is a cord heater wound around the outer periphery of the outer pot 2. The thermal reed switch 1 is electrically connected to the heating plate 4 and the cord heater 5, and senses the heat from the inner pot 6, cord heater 5, and heating plate 4 to control the contents of the inner pot 6 to a predetermined heat retention temperature. are doing. Reference numeral 7 denotes a metal plate outer shell of the appliance body, and the outer shell 7 and the outer pot 2 are fixed by a frame 8. 9
is a hinge fixed to the frame 8. 10 is a hinge cover, which is fastened to the hinge 9 with a screw;
Further, a removable soup receiver 11 covers the entire mounting portion of the hinge 9 and the like. Further, a handle 13 is rotatably held on the hinge 9 by a hollow shaft 12. A lid body is fixed to the handle 13 either integrally or detachably. A heating element (not shown) is attached to the lower center of the lid, and its lead wire 14 is connected to the shaft 1 from inside the handle 13.
2. One lead wire passes through the hinge cover 10, passes through a hole 15 provided in the outer shell 7, and is connected to one lead wire of the thermal reed switch 1 inside the outer shell 7. An engagement member 16 is provided on the opposite side of the hinge 9, and is detachably engaged with one end of the handle 13.

In the above configuration, the thermal reed switch 1
is placed inside the hinge 9 and the soup receiver 11, and it is placed near the thermal reed switch 1 housing part of 7 to remove the magnet 18, such as the shiyamoji receiver 17, which is provided as an accessory or purchased separately from the market. No adsorption.

Therefore, the magnetic force of the magnet 18 does not reach the thermal reed switch 1, and the heat retention temperature control by the thermal reed switch 1 is performed accurately. Further, the lead wire 14 for supplying current to the heating element provided on the lid body and the thermal lead switch 1 are connected near the hinge 9, and the lead wire 14 may also be short.

Although the thermal reed switch 1 is arranged inside the hinge 9 in this embodiment, it may be arranged inside the engagement member 16.

As is clear from the above description, according to the present invention, a control device such as a thermal reed switch that controls the heat retention temperature by changing magnetic force is arranged inside the pivot member of the lid or the engaging member. Therefore, even if a magnet is attached to the outside of the device, the magnetic force of the magnet will not reach the thermal reed switch, and the temperature will always be kept at the specified temperature, which has great practical value. be.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of a rice cooker and heat insulator showing an embodiment of the present invention, Fig. 2 is a side view of the main part thereof, and Fig. 3 is a side view of the main part of a conventional heat-retaining appliance. 1...Thermal reed switch, 2...Outer pot,
7... Outer shell, 9... Hinge, 13... Handle, 16... Engaging member.

Claims (1)

[Scope of utility model registration request] The main body is constructed by integrating the outer shell of the main body, which is formed into a cylindrical shape with a metal plate, and the outer pot, which has a double structure, inside the outer shell. In the heating device, which is pivotally supported on one side of the lid body and can be opened and closed by being engaged with the other side, a control device is provided between the outer pot and the outer pot, and controls the warming temperature by changing the magnetic force. A heat-retaining device characterized in that it is arranged inside an engaging member.