JP2932091B2 - Hot plate temperature controller - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a plate temperature control device for a hot plate.

[Related Art] Household electric appliances used in ordinary households have improved in their performance and are convenient to use. Therefore, home electric appliances have been remarkably popularized with each household together with their affordable prices.

While such new products are constantly appearing on the market, new models are constantly being improved, and their tastes are renewed every day. As a result, a single product having a plurality of functions has appeared.

FIG. 5 shows a kind of such a product, which shows a hot plate having not only a function as an original hot plate but also a function as an electric stove, (a) is a main body, (b) is a plate, and (c) is a cover. FIG. 6 is a perspective view, and FIG. In the figure, (1) is a main body, (2) is a plate, (3) is a lid, (4) is a sheathed heater, (5) is a supporting bracket thereof,
(6) and (7) are reflectors A and B for reflecting the heat of the sheathed heater (4), (8) and (9) are heat shields for shielding heat such as reflectors, (10) ) Is a guard, (11)
Is a suction port, (12) is a controller provided with a pipe (13) having a temperature sensor at its tip, (14) is a heat conductor A for transmitting heat of the plate (2) to the controller, and (15) is a sheathed heater. The heat of the controller (1
Heat conductor B for transmitting to 2).

As shown in the figure, the plate (2) is configured to be detachable from the main body (1), and in the case of grilled meat dishes or the like, the plate (2) is placed on the sheath heater (4) of the main body (1) and seeds are placed. Cooking is performed by heating the plate (2) by the heater (4). For cooking in a hot pot, remove the plate (2) from the main body (1) and place the pot directly on the sheathed heater (4) to heat. . It is convenient because it can be used for various types of cooking.

In the above hot plate, heat conductor A,
The heat of the plate (2) or the sheath heater (4) that has conducted B (14) and (15) is detected by a temperature sensor in the pipe (13), and the controller (12) responds to the sheath temperature in accordance with 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.

[Problems to be Solved by the Invention] By the way, the plate temperature control device for the hot plate uses the heat conductors A, B (14) and (15) for detecting the temperature of the plate (2) and the sheathed heater (4). Since a rod-shaped temperature sensor is used, the accuracy of temperature detection is generally low and there is a drawback that accurate temperature control is difficult to perform. In addition, since the controller (12) is separated from the main body (1), There is a problem that the number of parts increases and the cost also increases.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems of the conventional hot plate temperature control apparatus, and improves the temperature control accuracy of the plate and can reduce the cost of the hot plate temperature control. It is intended to provide a device.

[Means for Solving the Problems] In order to achieve the above object, in a hot plate according to the present invention, a temperature control device for a plate is provided with a heat-sensitive plate in contact with a back surface of the plate, and a thermostat arranged near the plate. An electric heating plate for connecting the thermosensitive plate and the thermostat, and a reinforcing plate which reinforces the electric heating plate and has a substantially U-shaped partially provided hole for preventing water drops from falling on the thermostat. did.

[Operation] As described above, since the thermostat is arranged near the plate to control the temperature of the plate, the accuracy of the temperature control is improved. In addition, since the controller is housed in the main body, the number of parts can be reduced and the cost can be reduced. Furthermore, as we tried to prevent water drops from falling on the thermostat, we were able to prevent the thermostat from deteriorating due to water drops and accidents.
Thermostat life is extended.

Embodiment FIG. 1 is a cross-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 a thermostat peripheral component, wherein (1) to (5) are conventional hot plates. (20) is a heat-sensitive plate, (21)
Is a heat transfer plate, (22) is its reinforcing plate, (23) is a thermostat, (24) is a gear, (25) is an operating lever, (26) is its teeth, (27) is an operating knob, (28) Is the temperature scale.

As shown in the figure, in the hot plate according to the present embodiment, the heat-sensitive plate (2) in contact with the back surface of the plate (2) is used.
0) and the heat transfer plate (2) reinforced by the reinforcement plate (22)
Connect the thermostat (23) to the thermal plate (20) via 1). An operating lever (25) is attached to the thermostat (23) via a gear (24), and a desired cooking temperature is set by an operating knob (27) of the operating lever (25) and a temperature scale (28). It is configured to be settable.

The reinforcing plate (22) is for reinforcing the heat transfer plate (21). As shown in FIG. 3, an aluminum plate is formed in a substantially U-shape and a hole (22a) is provided partially. The electric part (23a) of the thermostat (23) as shown in FIG.
Is placed on top. As a result, the water droplet (29) falls along the hole (22a) of the reinforcing plate (22) or the upper surface of the reinforcing plate (22) to avoid the thermostat (23) from the end. (23), especially to prevent its electrical parts (23a) from getting wet,
3) Prevent deterioration and accidents.

When using a hot plate, temperature scale (28)
Operate the control knob (27) while looking at the plate (2).
Is set to the desired temperature, the thermostat (23) functions, and the temperature of the cooking plate (2) is maintained at the set desired temperature.

In the present embodiment, the reinforcing plate (22) is formed as described above. However, the shape is not limited to the shape of the present embodiment, but may be any other shape as long as water droplets can be prevented from falling on the thermostat. .

[Effects of the Invention] In the present invention, in a hot plate, a plate temperature control device is provided with a heat-sensitive portion abutting on the back surface of the plate, a thermostat disposed near the plate, and a heat transfer device for transferring heat of the heat-sensitive portion to the thermostat. And a reinforcing plate having a substantially U-shaped partly provided hole for reinforcing the heat transfer part and preventing water drops from falling onto the thermostat, so that it is excellent in that it can be extended next. The effect was to be improved.

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

(2) Since the temperature control device is mainly composed of a thermostat disposed in the main body, the number of parts is reduced and the cost is reduced.

(3) The reinforcing plate of the heat transfer plate is substantially U-shaped and partially provided with holes to prevent water drops from falling on the thermostat, so that the thermostat can be prevented from deteriorating due to water drops and accidents can be prevented. The life of the thermostat could be extended.

[Brief description of the drawings]

1 is a sectional view of a main part of a hot plate according to an embodiment of the present invention, FIG. 2 is a perspective view of a thermostat peripheral component, FIG. 3 is a perspective view of a reinforcing plate, and FIG. FIG. 5 shows the hot plate (a) of the main body and (b)
Is a perspective view of a plate, (c) is a perspective view of a lid, and FIG. 6 is a sectional view of a conventional hot plate. In the figure, (1) is a main body, (2) is a plate, (4) is a sheathed heater, (20) is a heat-sensitive plate, (21) is a heat transfer plate, (22) is a reinforcing plate, (23) is a thermostat, (24) is a gear, (2
5) is an operation lever, (26) is its teeth, (27) is an operation knob, and (28) is a temperature scale. The same reference numerals in the drawings denote the same or corresponding parts.

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kenzo Takahashi 1728 Komaeda, Hanazono-cho, Osato-gun, Saitama 1 Mitsubishi Electric Home Equipment Co., Ltd. (56) References JP-A-2-147030 (JP, A) JP Hei 2-264615 (JP, A) (58) Field surveyed (Int. Cl. ⁶ , DB name) A47J 37/06 G05D 23/24

Claims (1)

(57) [Claims] 1. A hot plate comprising a heater and a plate heated by the heater, wherein the plate temperature control device comprises: a heat-sensitive portion contacting a back surface of the plate; a thermostat disposed near the plate; A heat transfer portion that conducts the heat of the heat-sensitive portion to the thermostat, and a reinforcing plate that reinforces the heat transfer portion and has a substantially U-shaped and partially provided hole that prevents water drops from falling on the thermostat. A plate temperature control device for a hot plate, comprising: