JPS5835168Y2 - electric cooker - Google Patents

Description

[Detailed description of the invention] The present invention relates to an electric cooker that senses the temperature of the heating plate with a temperature-sensitive rod installed in the control master and adjusts the temperature accordingly. This invention relates to an electric cooker having a structure that allows a single type of control master to be used for electric cookers having different shapes, materials, heater capacities, etc.

In conventional electric cookers of this type, dedicated control masters are used for models with different heating plate shapes, materials, heater capacities, etc., which is not only disadvantageous in terms of manufacturing costs but also difficult to maintain. There was an inconvenience in that the control master had to be repaired or replaced depending on the model.

In this invention, when installing a cover on the receiver that receives the control master when it is inserted, the receiver has a structure that allows the cover to be installed in a position that can be changed in the direction in which the control master advances or retreats. The purpose is to enable the use of a single type of control master for electric cooking appliances.

Hereinafter, an electric cooker according to an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows a hot plate as an example of an electric cooker.

In this hot plate, a heater 2 is arranged approximately in the center of a heating plate 1, and a terminal 3 is connected to the heater 2 as shown in FIG.
, 3 to energize.

This terminal 3.3 is the power terminal 5 of the control master 4.
, 5 to connect to the power source.

The control master 4 has an adjustment knob 6 for setting the temperature of the heating plate 1, and a function that senses the temperature of the heating plate 1 and controls the energization to the heater 2 according to the difference between the temperature of the heating plate 1 and the set temperature. It has a temperature-sensitive rod 7 that does this.

In addition, on the heating plate 1 side, there is a rod receiving member 9 provided with a rod receiving member 10 into which the temperature sensing rod 7 is inserted between the terminals 3 and 3.
is installed.

The terminals 3, 3 are attached to a support member 11 fixed to the heating plate 1, and at the lower end of the support member 11, a mounting piece 12 for attaching a control master receiver cover 8, which will be described later, faces inward. It is extended in one piece.

The mounting piece 12 has screw holes 13.13 formed therein.

The cover 8 of the receiver is formed of synthetic resin or the like in an oval shape, and an opening 14 for inserting the control master 4 is formed at its front edge.

The receiver cover 8 is attached to fit into the cutout 15a of the bottom plate 15 in order to cover both ends of the heater 2, the terminals 3, the rod receiver member 9, and the like.

The receiver has several screw holes 16a, 16b, etc. in the bottom mounting part of the cover 8 for the control master 4.
It is formed continuously in the direction of advance and retreat.

The screw fixing holes 16a, 16b, . . . are arranged so that these two are overlapped with the screw holes 13.13.

Therefore, when fixing the cover 8, the receiver is connected to the screw holes 13.13 and the screw fixing holes 16a, 16b.
Screw holes 16b and 16a selected from ......
They are overlapped and fixed with screws 17 and 17.

On the other hand, the control master 4 is formed with a retaining portion 19 that engages with the outer opening edge 18 of the cover 8 when the control master is inserted.
The position at which the control master 4 is inserted is determined.

That is, the receiver adjusts the mounting position of the cover 8 to the screw holes 16a,
By moving the control master 4 in the advance/retreat direction according to the selection of 16b..., the ratio between the control master temperature sensing rod insertion length l and the control master temperature sensing rod exposed length m can be changed as appropriate. It is like that.

In this embodiment, as shown in FIG.
13 and the screw fixing holes 16b and 16a and tighten the screws 17 and 17, the receiver is fixed to the cover 8.
is fixed, the length of the temperature-sensitive rod inserted is 11, and the exposed length of the temperature-sensitive rod is ml.

In the hot plate having such a structure, when the adjustment knob 6 of the control master 4 is set to X°C, the temperature at the center of the hot platen 1 is set to X°C.

In this case, when the temperature at the center of the heating plate 1 is X°C, the temperature of the rod receiving member 9 is Y°C, and the temperature of the control master temperature sensing rod 7 is
When detecting a temperature higher than this Y'C, it acts to interrupt the electricity supply to the heater 2.

At this time, the temperature of the temperature sensing rod 7 is 2°C.

However, since the heat transfer temperature from the center of the heating platen 1 to the bar support member 9 depends on various factors such as the heater capacity, the shape and material of the heating platen, it is necessary to change the heater capacity, the shape and material of the heating platen, etc. Then, the heat transfer temperature changes.

That is, when the temperature at the center of the heating plate 1 reaches X°C, the rod receiving member 9
The temperature becomes Y1°C.

Therefore, for example, if the heat transfer temperature is high < Y < Y□, as shown in FIG. 1
7, and the receiver pulls the cover 8 outward by a predetermined amount.
Since the control master 4 is positioned with respect to the cover 8 by the engagement between the outer end opening edge 18 and the engaging part 19, the insertion length of the temperature sensing rod is 12 (12 < 11), and the temperature sensing rod is The exposed length is m2 (m2>ml).

Therefore, compared to the case shown in FIG. 3, the heat transfer area to the temperature sensing rod 7 in the rod receiving hole 10 becomes smaller, the contact area with the outside air becomes larger, and the heat conduction to the temperature sensing rod 7 becomes slower. .

As a result, when the temperature of the rod receiving member 9 reaches Y1°C (the temperature at the center of the heating plate 1 is X°C), the temperature of the temperature sensing rod 7 reaches 2°C, and the power supply to the heater 2 is interrupted. Become.

In addition, in the case where the heat transfer temperature is low and Y>Yl, contrary to the above, the screw hole 13.13 and the screw fixing hole 16a,
16c, the receiver may be fixed by moving the cover 8 inward.

As described above, in the present invention, when the control master holder fixes the cover 8, the rod holder member 9 is attached to the central part of the heating plate 1.
Depending on the height of the heat transfer temperature to the screw holes 16a, 16
b.... can be selected as appropriate, and the receiver can adjust the sensitivity of the control master temperature sensing rod 7 by appropriately changing the mounting position of the cover 8. Regardless of whether the thermal temperature is high or low, the temperature adjustment effect can be measured using a single type of control mask, which has the practical effect of being advantageous in terms of manufacturing costs and convenient in terms of maintenance.

Further, according to the present invention, the heat conduction to the control master thermosensing rod 7 is changed by changing the mounting position of the cover 8 on the receiver, so there is no need to process the rod receiver part 9 of the heating plate 1. In addition to eliminating the need for a receiver, the cover 8 can also be shared, which has the effect of simplifying manufacturing and reducing costs by reducing the need for new parts.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an electric cooker (hot plate) according to an embodiment of the present invention, Fig. 2 is a perspective view of main parts of the electric cooker of Fig. 1, and Figs. 3 and 4 are a perspective view of an electric cooker (hot plate) according to an embodiment of the present invention. FIG. 3 is a cross-sectional view of main parts for explaining the operation of the electric cooker according to the embodiment. 1... Heat plate, 2... Heater, 4...
...Control master, 7...Temperature stick,
8...The receiver is a cover, 9...The rod receiver member,
DESCRIPTION OF SYMBOLS 10... Rod receiving hole, 16... Screw fixing hole, 18... Outer end opening edge, 19... Engaging portion.

Claims (1)

[Scope of utility model registration request] The temperature of the control master 4 inserted into the rod receiving hole 10 formed in the rod receiving member 9 for the control master temperature sensing rod which is in a heat transfer relationship with the heating plate 1 is adjusted to the temperature of the heating plate 1 heated by the heater 2. An electric cooker configured to control the energization of the heater 2 according to the temperature signal sensed by the temperature sensing rod 7, which surrounds at least the terminals 3, 3 of the heater 2. The control master receiver disposed in the rod receiver member 9 portion of the heating platen 1 has several screw holes 16a, 16 in the cover 8 at its attachment portion.
b... is formed continuously in the forward and backward direction of the control master 4, and the receiver engages with the outer end edge 18 of the cover 8 when the control master is inserted into the control master 4. In addition to forming an engaging portion 19 for fixing the cover 8, the receiver fixes the screw hole 16a, An electric cooking appliance characterized in that 16b... can be selected as appropriate.