JPH04135518A - Plate temperature controller of hot plate - Google Patents

Abstract

PURPOSE:To improve the temperature control accuracy by conducting heat of a plate to a thermostat through a heat transmission part from a thermosensible part which abuts on the reverse side of the plate, and also, reinforcing the heat conducting part by providing a reinforcing plate, and also, preventing waterdrops from dropping down to the thermostat. CONSTITUTION:On the reverse side of a hot plate 3, a thermosensible plate 20 is allowed to abut and placed, and heat of the plate 2 is fetched by the thermosensible plate 20, and conducted to a thermostat 23 through a heat conduction plate 21. To the thermostat 23, an operating lever 25 is detained and attached through a gear 24, and by an operating control 27 and a temperature scale 28 of the operating lever 25, a temperature is set. In this regard, the heat conduction plate 21 is reinforced by attaching a reinforcing plate 22, and also, by providing a hole 22a for dropping down waterdrops on other part than an electric part 23a of the thermostat 23, the electric part 23a of the thermostat 23 is covered.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a plate temperature control device for a hot plate.

[Background Art] Home electrical appliances used in ordinary households have improved in performance and are convenient to use, and together with their affordable prices, they have become rapidly popular in households.

While completely new products are constantly appearing on the market, conventional models are constantly being improved and new features are introduced day by day. As a result, products with multiple functions are appearing in a single product.

Figure 5 is one such product, showing a hot plate that functions not only as a hot plate but also as an electric stove. (a) shows the main body, (b) shows the plate, and (c) shows the lid. It is a perspective view, and FIG. 6 is a sectional view thereof.

In the figure, (1) is the main body, (2) is the plate, (3) is the lid,
(4) is the sheathed heater, (5) is its support fitting, (6)
, (7) are reflectors A and B for reflecting the heat of the sheathed heater (4), (8) and (9) are heat shield plates for shielding heat such as reflectors, and (10) is a guard. , (11)
(12) is a controller equipped with a pipe (13) that has a temperature sensor at its tip, (14) is a heat conductor A that conveys the heat of the plate (2) to the controller, (15) is a sheathed heater This is a heat conductor B for transmitting heat to the controller (12).

As shown in the figure, the plate (2) is configured to be detachable from the main body (1), and when cooking grilled meat etc.
The plate (2) is placed on top of the sheathed heater (4) and the plate (2) is heated by the heater (4) for cooking, but when cooking hot pot dishes, the plate (2) is removed from the main body (1). Place the pot directly on top of the sheathed heater (4) and heat it. It is convenient because it can be used for various types of cooking.

In the upper hot plate, the heat conductor AS
The heat of the plate (2) or sheathed heater (4) that has conducted B (14) and (I5) is detected by the temperature sensor in the vibrator (13), and the controller (12) controls the sheathed heater according to the detected temperature. The power supply to the heater (4) is controlled so that the temperature of the plate (2) is always maintained at a predetermined temperature.

E Invention or problem to be solved] By the way, the plate temperature control device for the hot plate described above uses heat conductors (14) and (15) to detect the temperature of the plate (2) and the sheathed heater (4), and Since a sensor is used, the accuracy of temperature detection is generally low, making it difficult to perform accurate temperature control.In addition, since the controller (12) is separate from the main body (1), the number of parts is low. There was a problem in that there were a lot of problems and the cost was also high.

The present invention has been made in order to solve the above-mentioned problems of the conventional hot plate plate temperature control device, and provides hot plate plate temperature control that improves the accuracy of plate temperature control and also enables cost reduction. The aim is to provide equipment.

"Means for Solving the Problems" In order to achieve the above object, in the hot plate according to the present invention, the temperature control device of the plate is composed of a heat-sensitive plate that contacts the back surface of the plate and a thermostat arranged near the plate. , a heat transfer plate connecting the heat sensitive plate and the thermostat, and a reinforcing plate for the heat transfer plate formed to prevent water droplets from falling onto the thermostat.

[Function] As described above, since the temperature of the plate is controlled by arranging the thermostat near the plate, the accuracy of temperature control is improved. Additionally, since the controller is housed within the main body, the number of parts is reduced, resulting in cost reduction. Furthermore, since we have tried to prevent water droplets from falling onto the thermostat, the life of the thermostat will be extended.

[Example] Fig. 1 is a sectional view of a main part of a hot plate showing an embodiment of the present invention, and Fig. 2 is a perspective view of peripheral parts of a thermostat.
In the figure, (1) to (5) are the same or equivalent parts to those in a conventional hot plate, (2o) is a heat-sensitive plate, (21)
is the heat transfer plate, (22) is its reinforcement plate, (23) is the thermostat, (24) is the gear, (25) is the operating /<-(2
B) is the tooth portion, (27) is the operation knob, and (28) is the temperature scale.

As shown in the figure, in the hot plate in this example, the heat-sensitive plate (20
) and reinforced with a reinforcing plate (22).
21) to the thermostat (2o).
3) Connect. Further, an operating lever (25) is connected to the thermostat (23) via a gear (24).
The desired cooking temperature can be set using the operating knob (27) of the operating lever (25) and the temperature scale (28).

The reinforcing plate (22) is for reinforcing the heat transfer plate (21), and as shown in Figure 3, it is made of pure aluminum plate formed into a U-shape and partially drilled with holes (22a). As shown in Figure 4, the thermostat's electrical part (23
By arranging the thermostat (29) so as to cover the thermostat (23), it is possible to prevent water droplets (29) from wetting the electric part (23a) of the thermostat (23), thereby preventing deterioration of the thermostat (23) and accidents.

When using a hot plate, please check the temperature scale (28).
Operate the operation knob (27) while looking at the plate (2).
) is set to a desired temperature, the thermostat (23) functions to maintain the temperature of the plate (2) at the desired temperature during cooking.

In this example, the reinforcing plate (22) was formed as described above, but it is not limited to the shape of this example and may be formed in other shapes as long as it can prevent water droplets from falling onto the thermostat. .

[Effects of the Invention] The present invention provides a hot plate in which the plate temperature control device includes a heat-sensitive part that contacts the back surface of the plate, a thermostat that is placed near the plate, and a heat transfer device that conducts the heat of the heat-sensitive part to the thermostat. The thermostat was constructed with a reinforcing plate for reinforcing the heat transfer section and preventing water droplets from falling onto the thermostat, resulting in excellent effects as described below.

(1) Since the thermostat was placed near the plate, the accuracy of temperature control was improved.

(2) Since the temperature control device mainly consists of a thermostat disposed within the main body, the number of parts can be reduced, resulting in cost reduction.

(3) Since the reinforcing plate of the heat transfer plate was configured to prevent water droplets from falling onto the thermostat, the life of the thermostat could be extended.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the main parts of a hot plate that is an embodiment of the present invention, Figure 2 is a perspective view of parts surrounding the thermostat, Figure 3 is a perspective view of a reinforcing plate, and Figure 4 is an explanation of how to prevent water droplets from falling. 5 is a perspective view of the hot plate (a) of the main body, (b) of the plate, and (C) of the lid, and FIG. 6 is a sectional view of the conventional hot plate. In the figure, (1) is the main body, (2) is the plate, (4) is the sheathed heater, (20) is the heat sensitive plate, (21) is the heat transfer plate, (2
2) is a reinforcing plate, (23) is a thermostat, (24) is a gear, (25) is an operating lever, (26) is its teeth, (
27) is an operation knob, and (28) is a temperature scale. Note that the same reference numerals in the figures indicate the same or equivalent parts. Agent: Patent Attorney Muneharu Sasaki

Claims (1)

[Scope of Claims] A hot plate equipped with a heater and a plate heated by the heater, the plate temperature control device comprising: a heat sensitive part that comes into contact with the back surface of the plate; and a thermostat arranged near the plate. , a hot plate comprising: a heat transfer section that conducts heat from the heat sensitive section to a thermostat; and a reinforcing plate that reinforces the heat transfer section and prevents water droplets from falling to the thermostat. plate temperature control device.