JPS5827709Y2 - Heating device in electric pot - Google Patents

Description

[Detailed description of the invention] This invention relates to a heating device for an electric kettle that is capable of both heating liquid and keeping it warm. The object of the present invention is to provide a heating device with good thermal efficiency by making the size as small as possible.

Hereinafter, a heating device for an electric kettle according to an embodiment of the present invention will be described with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a pot body, and 2 denotes a lid body that covers the upper opening of the pot body 1. As shown in FIG.

The pot body 1 includes a cylindrical outer case 3, a bottomed cylindrical inner container 4 to be disposed inside the outer case 3, and a bottom lid 5 to cover the lower end opening of the outer case 3. It is constructed using members as main components.

A shoulder member 6 is interposed between the upper edge 8 of the outer case 3 and the upper edge 10 of the inner container 4 to connect the two by abutting on the former and suspending the latter. A connecting tool, which will be described later, connects the bottom of the inner container 4 and the bottom lid 5 while holding the upper end of the legs 7 that support the pot body 1 between the lower edge 9 of the case 3 and the upper edge 11 of the bottom lid 5. The pot main body 1 is constructed by coupling via 12 and 12.

In this embodiment, the lower part of the inner container 4 is formed into a small diameter part 4b by drawing, and an electric heater 13 for heating is attached to the outer periphery of the small diameter part 4b by a band 14.

Reference numeral 4a indicates a large diameter portion at the upper part of the inner container 4.

Further, a mounting base 17 is fixed to the bottom surface of the inner container 4. The mounting base 17 has protrusions 19 and 19 on which temperature sensing devices 27 such as a thermostat 27a and a temperature sensing reed switch 27b are to be mounted.

A bottomed cylindrical heat shield plate 15 is attached to the mounting base 17 with screws 1.
In this embodiment, the bottom surface 15a of the heat shield plate 15 is provided with a cutout hole 16 through which the protrusion 19.19 should protrude.

The shape of this notch hole 16 is similar to that of the mounting base 17 and the protrusion 1.
Although the design may be changed as appropriate depending on the shape of 9.19 or the ease of assembly, at least the protrusion 19.19
If it has a shape that allows it to protrude, it is desirable to make its opening area as small as possible, as illustrated in FIG.

Further, the peripheral wall 15b of the heat shield plate 15 is configured to surround the outside of the electric heater 13, and its outer diameter is the same as or slightly smaller than the outer diameter of the large diameter portion 4a of the inner container. ing.

Therefore, a heat insulating material 21 made of glass wool or the like is provided in a cylindrical space 20 formed between the outer case 3, the inner container large diameter portion 4a, and the heat shield peripheral wall 15b located below the inner container large diameter portion 4a. Filled.

In this case, the outer diameter of the inner container large diameter portion 4a and the heat shield peripheral wall 15b
Since the outer diameter of the heat shield plate peripheral wall 15b is made the same or a slightly smaller diameter, filling the heat insulating material 21 from below is facilitated.

Further, on the mounting base 17, a connecting tool 12.12 for connecting the inner container 4 and the bottom cover 5 is attached with screws 18.
It is collinear with ....

As mentioned above, the mounting base 17 is fixed to the bottom of the inner container 4.
By attaching a bottomed cylindrical heat shield plate 15 to surround the outside of the electric heater 13 with the heat shield plate 15, it is possible to dissipate heat downward as much as possible during heating and heat retention. As a result, the heating efficiency and heat retention effect of the electric heater 13 can be significantly increased.

In the drawing, reference numeral 22 denotes a protrusion erected on the bottom surface 15a of the heat shield plate, and the protrusion 22 has the function of preventing the electric heater 13 from falling off.

Reference numeral 23 indicates a screw 24 that fastens the connector 12 and the bottom cover 5.
25 is an outlet hole at the bottom of the inner container 4, 25 is a spouting pipe, and 26 is an opening/closing cock.

Next, the effects of the heating device in the electric kettle of the present invention will be listed below.

That is, according to the present invention, (1) the bottomed cylindrical heat shield plate 15 is attached to the mounting base 17 fixed to the bottom surface of the inner container 4, and the outer circumference of the inner container 4 is protected by the heat shield plate 15; Electric heater 13 attached to the wall
(2) The mounting base can prevent heat from dissipating downward during heating and heat retention, and can significantly improve the heating efficiency and heat retention effect of the electric heater 13. Since the protrusion 19 to which the temperature sensing device 27 such as a thermostat in 17 is attached is made to protrude from the bottom surface 15a of the heat shield plate, the heat shield plate 1
(3) The electric heater 13 can prevent the temperature sensing device 27 from malfunctioning due to hot air trapped inside the electric heater 13, and can perform assembly work such as wiring outside the heat shield plate 15, improving work efficiency. By preventing the heat from dissipating downward, the effect of heat on the bottom of the pot body can be minimized, which is a practical effect.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of an electric pot according to an embodiment of the present invention, FIG. 2 is a bottom view of the inner container in the electric pot of FIG. 1, and FIG. 3 is a view of the heat shield plate of the electric pot of FIG. FIG. 4 is a perspective view of a heat shield plate in another embodiment of the present invention. 3...Outer case, 4...Inner container, 1
3... Electric heater, 15... Heat shield plate,
15a...Bottom surface of heat shield plate, 17...Mounting base, 19...Protrusion, 21...Insulating material, 27... Temperature sensing device.

Claims (1)

[Scope of utility model registration request] In an electric kettle in which an electric heater 13 for heating is attached to the lower outer circumferential wall of an inner container 4 disposed in an outer case 3 via a heat insulating material 21, a temperature sensing device such as a thermostat is installed on the bottom surface of the inner container 4. The mounting base 17 having the protrusion 19 on which the device 27 is to be attached is fixed, and the mounting base 1
7 is characterized in that a bottomed cylindrical heat shield plate 15 configured to surround the outside of the electric heater 13 is attached so that at least the protrusion 19 protrudes from the bottom surface 15a thereof. A heating device in an electric kettle.