JP3310475B2 - Hot plate for cooking - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a home and business cooking hot plate having a detachable cooking plate.

[0002]

2. Description of the Related Art There has been a conventional hot plate for cooking in which a cooking plate in which a sheathed heater is directly cast is fixed to the hot plate body, but the cooking plate can be removed from the hot plate body and washed in a round manner. It was not easy to use. Therefore, a cooking hot plate of a type in which the sheathed heater is fixed to the hot plate body side and the cooking plate can be removed is often used. This type of cooking hot plate is provided with a recess for mounting a cooking plate on the hot plate body, and a sheath heater is attached to the recess, and the cooking plate is placed on the sheath heater and heated. It has become.

[0003] In such a cooking hot plate, when the cooking plate is not placed on the sheathed heater, the sheathed heater remains exposed. In order to prevent the danger from occurring, there is provided a mechanism for preventing the danger by preventing the energization of the sheathed heater when the cooking plate is not placed.
The mechanism detects the presence or absence of the cooking plate before energizing the sheathed heater and controls the energization of the sheathed heater. When the cooking plate is placed on the sheathed heater, the bottom of the cooking plate is the hot plate body. By pressing down the stylus protruding from the sensor, the detection switch is turned on to enable electricity to the sheathed heater, and when the cooking plate is removed, the stylus returns to the original position and the detection switch is turned off, and the sheathed heater is turned off. To the power supply.

[0004] Japanese Patent Application Laid-Open No. 3-136620 also discloses a hot plate in which a cooking plate detection switch is provided on the hot plate main body side. In this method, when the cooking plate is placed on the heating element, the cooking plate presses and slides the contact pressing member, whereby the sensing switch is turned on and the heating element is energized.

[0005]

However, in the conventional cooking hot plate, the cooking plate is heated by heat conduction from a part of the sheathed heater in contact with the cooking plate and radiant heat of the sheathed heater. The heat distribution on the surface was uneven and the heat efficiency was lower than that obtained by casting the sheathed heater directly on the cooking plate. Moreover, since the cooking plate is only placed on the sheathed heater, if the hot plate body is moved during cooking, the cooking plate moves and floats up from the sheathed heater, and the cooking plate comes off from the recess of the hot plate body, This impaired the degree of perfection as a product. In addition, since the stylus and the contact pressing member protrude from the hot plate body, if the stylus or the contact pressing member is accidentally or intentionally pushed in when the cooking plate is removed, the sheath heater is energized. It was very dangerous.

SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide a cooking hot plate capable of preventing a cooking plate from shifting or floating with a simple mounting structure and improving safety during use.

[0007]

As shown in FIGS. 1 to 3, the means for solving the problems according to the present invention is provided with an engaging portion for slidably engaging the cooking plate 1 with the hot plate main body 2.
Is mounted from the side of the hot plate body 2. The engaging portion is provided with a flange 12 formed on the cooking plate 1.
And grooves 18a and 18b formed in the hot plate main body 2 and slidably guiding the flange 12 of the cooking plate 1. The heating plate 14 is integrally formed on the back surface of the cooking plate 1, and the cooking plate 1 The electrode portion 15 is provided on the flange 12 of
The electrode portion 1 is inserted into the grooves 18a and 18b of the hot plate body 2.
5 are provided with electrical contacts 19a and 19b. Further, a fixing means for fixing the cooking plate 1 to the hot plate main body 2 is provided.

Further, a cleaning means for cleaning the surfaces of the electrode portion 15 and the electric contacts 19a and 19b when the cooking plate is attached and detached, and foreign matter intrusion for preventing moisture and dust from entering the hot plate main body 2 as shown in FIG. A prevention means 35 is provided.

[0009]

In the above means for solving the above problems, the flange 12 of the cooking plate 1 and the grooves 18a, 18b of the hot plate body 2 are engaged and inserted from the side of the hot plate body 2 while sliding. Then, the flange 12 becomes the groove 1
8a and 18b are moved and the cooking plate 1 is fitted.
At this time, the surfaces of the electrode portions 15 of the cooking plate 1 and the electrical contacts 19a and 19b of the hot plate main body 2 are polished by the purifying means by the movement of the cooking plate 1 and become clean.

When the movement of the cooking plate 1 is stopped, the cooking plate 1 is fixed to the hot plate body 2 by the fixing means, and the mounting of the cooking plate 1 is completed. At this time, the electrode portion 15 contacts the electrical contacts 19a and 19b, and the electrode portion 15
When the power is turned on by the user, power is supplied to the electrode unit 15 from the electrical contacts 19a and 19b to heat the heating element 14 and the cooking plate 1 can be cooked.

When the mounting of the cooking plate 1 is completed, moisture and dust from the cooking plate 1 are prevented from entering the hot plate body 2 by the foreign matter intrusion prevention means 35, and the inside of the hot plate body 2 becomes dirty. Absent.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a cooking hot plate according to one embodiment of the present invention is a cooking plate 1 on which a food is placed and heated.
A hot plate body 2 to which the cooking plate 1 is detachably mounted, a lid 3 for covering the cooking plate 1, and a hot plate body 2
And a power plug cord 5 that can be attached to and detached from the connector 4. In FIG. 1, reference numeral 6 denotes an operation panel provided on the hot plate main body 2, and 7 denotes legs for supporting the hot plate main body 2.

As shown in FIGS. 1 and 2, the cooking plate 1 has a rectangular bottom portion 10 and a peripheral wall 11 erected from an outer peripheral edge of the bottom portion 10.
a and 11b are integrally formed of a non-conductive material such as non-conductive ceramics. The left and right peripheral walls 11a of the cooking plate 1 are provided with flanges 12 that form engagement portions with the hot plate main body 2 in the front-rear direction, and the hot plate main body 2 is provided from one of the front and rear peripheral walls 11b. Be attached. Also, the bottom 10 and the peripheral wall 11 of the cooking plate 1
The surfaces (a food contact surface) of a and 11b are coated with a fluororesin or the like so as not to stick to scorch or the like.

A rectangular fitting groove 13 is formed on the back side of the bottom portion 10 of the cooking plate 1.
A sheet heating element 14 formed in a plate shape from conductive ceramics containing silicon carbide as a main component is fitted and fixed. Metal such as aluminum is sprayed on both ends in the front-rear direction of the sheet heating element 14 so that both flanges 1 are formed in the left-right direction.
A pair of electrode parts 15 up to 2 are formed in a band shape.
Further, the surface of the planar heating element 14 except for the electrode portion 15 and the back surface side (including the flange) of the cooking plate bottom 10 are coated with a non-conductive material such as non-conductive ceramics, and are electrically connected to the electrode portion 15. It is insulated, and care is taken to prevent leakage and electric shock.

The hot plate body 2 is, as shown in FIG.
It is formed in a rectangular shape in which vertical walls 17a and 17b are erected on three sides excluding the side. The cooking plate 1 is arranged in a space surrounded by the vertical walls 17a and 17b, and the cooking plate 1 is mounted from the near side of the opened hot plate main body 2.

The right and left vertical walls 17a of the hot plate main body 2 are provided with flanges 1 of the cooking plate 1 forming an engaging portion.
Grooves 18a and 18b are formed to slidably guide 2. The grooves 18a and 18b are formed on the left and right vertical walls 17a.
Is formed by projecting the upper part inward,
One ends of the grooves 18a and 18b communicate with the front side of the hot plate body 2 and are open.

As shown in FIG. 3, a pair of electrical contacts 19a corresponding to the two electrode portions 15 of the cooking plate 1 are formed in the left groove 18a.
19b is attached to the hot plate main body 2 via an insulator. The tips of the electrical contacts 19a and 19b slightly protrude into the groove 18a, so that the hot plate body 2
Are arranged at the same interval as the two electrode portions 15 of the cooking plate 1 near the front side and near the rear vertical wall 17b. Then, when the power is turned on, electricity is supplied from the electric contact 19a to the electrode portion 15, the sheet heating element 14, the electrode portion 15, and the electric contact 19b.

As shown in FIG. 4, a cooking plate presence / absence detecting means 20 for detecting whether or not the cooking plate 1 is mounted is provided in the right groove portion 18b. The cooking plate presence / absence detecting means 20 is a micro switch that is turned on and off depending on the presence or absence of the cooking plate 1, and includes a switch body 21 and a swingable stylus 22 that contacts the flange 12 of the cooking plate 1. The stylus 22 slightly protrudes into the groove 18b and is disposed near the rear vertical wall 17b. When the mounting of the cooking plate 1 is completed, the stylus 22 contacts the flange 12 of the cooking plate 1 and turns on. When the cooking plate 1 is removed, the stylus 22 is
Off from the flange 12.

The hot plate body 2 is provided with fixing means for fixing the cooking plate 1 so that the cooking plate 1 does not come off from the hot plate body 2 when the cooking plate 1 is mounted. As shown in FIG. 3, the fixing means includes an engagement groove 25 formed in both flanges 12 of the cooking plate 1 and an engagement groove 25 provided in the left and right grooves 18a, 18b of the hot plate body 2 so as to be able to protrude and retract. And a projection 26 to be engaged.

As shown in FIG. 5, the protrusion 26 is formed in a rectangular shape having a rounded corner on the front side in the traveling direction of the flange 12 of the cooking plate 1, and is provided on the upper surface of the groove of the hot plate body 2. It is stored in the storage part 27 so as to be movable up and down. A coil spring 28 is interposed between the upper surface of the storage portion 27 and the protrusion 26. When the protrusion 26 engages with the engagement groove 25 of the flange 12, the coil spring 28
6 is pressed downward so as not to get out of the engagement groove 25.
The protrusion 26 is provided with an unlocking mechanism composed of a knob, a button, and the like (not shown). By operating the unlocking mechanism from outside the hot plate main body,
The protrusion 26 is pushed upward against the urging force of the coil spring 28, is housed in the housing part 27, is separated from the engagement groove 25 of the flange 12, and the cooking plate 1 is removable.

Further, the hot plate body 2 is provided with a purifying means for cleaning the surfaces of the electrode portion 15 and the electric contacts 19a and 19b when the cooking plate is attached and detached. As shown in FIGS. 2 and 3, the cleaning means is provided on the cooking plate 1 and contacts the electrical contacts 19a and 19b when the cooking plate is attached and detached to polish the surface thereof.
The cleaning section 31 is provided on 18b and contacts the electrode section 15 when the cooking plate is attached or detached and polishes its surface. The purifying unit 30 of the cooking plate 1 projects slightly from the back surface of the cooking plate 1 to the flange 12 of the cooking plate 1 as shown in FIG. 2 and has a roughened surface. The two flanges 12 are arranged at diagonally opposite ends so that they can be cleaned even if they are inserted. Further, the purifying unit 31 of the hot plate body 2
As shown in FIG. 3, is formed in a plate shape with an abrasive material or the like, and is attached to the left and right grooves 18a, 18b of the hot plate main body 2 on the front side of one electrical contact 19a.

Further, FIG.
As described above, a foreign matter intrusion prevention means 35 for preventing oil and moisture of the cooking plate 1 or debris and garbage of the food from entering the hot plate body 2 is provided. The foreign matter intrusion prevention means 35 is a sealing material formed of a flexible material such as heat-resistant elastic rubber, and is provided in the left and right grooves 18a and 18b of the hot plate body 2 and the inner surfaces of the left and right vertical walls 17a in the front-rear direction. It is arranged along. And the sealing material 35
Are left and right peripheral walls 11 of the cooking plate 1 with the tip slightly bent.
a and the length thereof is set so as to abut on the flange 12.

As shown in FIG. 7, the hot plate body 2 includes a control circuit 40 for controlling the temperature of the cooking plate 1 to a set temperature based on the contents set on the operation panel 6. Electrical contacts 19a, 19b
Power is supplied from the power plug cord 5 through the connector 4. The control circuit 40 includes a voltage / current detection unit 41 for detecting a voltage / current value of a power supply, a switch 42 for interrupting power supply to the electric contacts 19a and 19b, and electric contacts 19a and 19.
b, a voltage control unit 43 for adjusting the output voltage to b, a voltage / current detection unit 44 for detecting a voltage / current value from the voltage control unit 43 to the electrical contacts 19a and 19b, and a control unit 45 including a microcomputer for controlling each unit. It is composed of Then, from the connector 4 side, the voltage / current detection unit 41, the switch 42, the voltage control unit 43, and the voltage / current detection unit 44 are connected in series to the electrical contacts 19a and 19b in this order, and each is connected to the control unit 45. . The control unit 45 includes a cooking board 1 based on an output signal from the microswitch 20.
And a voltage control unit 43 that determines the presence or absence of the voltage and controls the energization of the electrical contacts 19a and 19b, and a voltage control unit 43 that reaches a temperature set by the user based on the voltage / current value information from the voltage / current detection units 41 and 44. And a function of giving a voltage adjustment instruction to the

In the above configuration, when the cooking plate 1 is mounted on the hot plate main body 2, the flange 12 of the cooking plate 1 and the grooves 18a, 18b of the hot plate main body 2 are engaged from the near side of the hot plate main body 2. Insert while sliding. Then, the flange 12 is connected to the left and right groove portions 1.
8a, 18b toward the rear vertical wall 17b,
The cooking plate 1 is fitted. At this time, the flange 12
When the purifying section 30 of the left side passes through the purifying section 31 of the groove 18a on the left side and then contacts the electrical contact 19a on one side, the purifying sections 31 of the left and right grooves 18a and 18b come into contact with the electrode section 15 and The surfaces of the electrical contact 19a and the electrode portion 15 are polished and cleaned. In addition, the sealing material 35 abuts on the upper surface of the flange 12 and the left and right peripheral walls 11b while the cooking plate 1
Moves.

Then, the movement of the cooking plate 1 proceeds, and the cooking plate 1
When the tip of the groove reaches the vicinity of the center of the grooves 18a and 18b, the flange 12 comes into contact with the projection 26, and
Moves while sliding on the rounded corners of the projection 26, the projection 26 is pushed up against the urging force of the coil spring 28, and the tip of the projection 26 contacts the upper surface of the flange 12.

Thereafter, as shown in FIG.
When the movement of the cooking plate 1 proceeds while the upper surface of the plate 2 contacts the tip of the projection 26, and the purifying unit 30 of the flange 12 contacts the electric contact 19b on the other side, the purifying unit 31 of the left and right grooves 18a, 18b is activated. The electrical contact 19 on the other side contacts the electrode portion 15.
b and the surface of the electrode portion 15 are polished and cleaned. Then, the purifying portion 30 of the flange 12 and the left groove portion 18a
When the purifying section 31 passes through the electric contact 19b and the electrode section 15 on the other side, the tip of the cooking plate 1 is moved to the vertical wall 1 on the rear side.
7b, the movement is stopped, the engagement groove 25 of the flange 12 reaches the position of the protrusion 26, and the protrusion 26 pushed up by the flange 12 is moved to the coil spring 28 as shown in FIG. Is pushed downward by the urging force of
The tip fits into the engagement groove 25. Then, cooking plate 1
Are fixed to the hot plate body 2 and the two electrode portions 15 abut against the electrical contacts 19a and 19b, and the mounting of the cooking plate 1 is completed. At this time, the gap between the flange 12 of the cooking plate 1 and the grooves 18a and 18b of the hot plate main body 2 is closed by the sealing material 35.

When the mounting of the cooking plate 1 is completed, the flange 1
2 comes into contact with the stylus 22 of the microswitch 20, and the microswitch 20 is turned on. At this time, the control unit 45
Determines that the cooking plate 1 is present on the basis of the output signal, gives a closing instruction to the switch 42, closes the switch 42, and enables the power supply to the electrode unit 15. Next, when the user turns on the power and sets a desired temperature using the operation panel 6, the electric contacts 19a and 19b are energized to the electrode section 15 to heat the sheet heating element 14, and the cooking plate 1 can be cooked. . At this time, the control unit 45 detects the voltage and current values of the electricity flowing from the power plug cord 5 to the electrical contacts 19a and 19b by the voltage and current detection units 41 and 44, and from this voltage and current value, the resistance value of the cooking plate 1 Ask for. Then, the temperature of the cooking plate 1 is determined from the resistance value, a voltage adjustment instruction is given to the voltage control unit 43 so that the temperature becomes the set temperature, and the cooking plate 1 is maintained at the set temperature.

If the cooking plate 1 is not sufficiently mounted, that is, if the cooking plate 1 is not fixed to the hot plate body 2, the electrode portion 15 does not contact the electrical contacts 19a and 19b, and the flange 12 However, since the micro switch 20 remains off without touching the stylus 22 of the micro switch 20, the control unit 45 determines that there is no cooking plate 1 and opens the switch 42 even when the power is turned on. Since the power supply to the electrode portion 15 is stopped by keeping the state, the cooking plate 1 is not heated. Further, the microswitch 20 is disposed in the grooves 18a and 18b of the hot plate main body 2, and is not exposed to the outside even when the cooking plate 1 is removed, so that the user cannot intentionally touch with a stick or a finger, and No touch. Therefore, even if the cooking plate 1 is removed, the control unit 45 does not determine that there is a cooking plate and does not energize the electrode unit 15.

As described above, the flange 12 of the cooking plate 1 is engaged with the grooves 18a and 18b of the hot plate main body 2, and the cooking plate 1 is slid from the near side of the hot plate main body 2 and inserted. The cooking plate 1 is mounted on the main body 2 and the projections 26 are fitted and fixed in the engagement grooves 25 of the flange 12, so that the cooking plate 1 does not move or float, and the groove of the hot plate body 2 is easily formed. There is no escape from 18a, 18b. Therefore, even if the hot plate body 2 is moved during cooking, the heated cooking plate 1 does not fall off the hot plate body 2 and does not fall. It does not occur, increases the safety during use, and does not impair the perfection as a product. In addition, cooking board 1
Is fixed to the hot plate main body 2 so that the electrode portion 15
The electric contacts 19a and 19b are not separated or attached to each other in an unstable state, and the power supply to the electrode unit 15 is not interrupted.

Since the planar heating element 14 is integrally formed on the cooking plate 1 and the electric contacts 19a and 19b are provided in the grooves 18a and 18b of the hot plate main body 2, the cooking plate 1 is separated from the hot plate main body 2. Even when detached, the electric contacts 19a and 19b are not exposed from the hot plate body 2. Therefore, since the user cannot carelessly touch the electric contacts 19a, 19b, there is no fear of electric shock, and the surface of the electric contacts 19a, 19b is not easily dusted. Also, the electrical contacts 19a, 19
Compared to the case where b is hidden by a cover or the like, since a cover and a mechanism for moving the cover are not required, the number of parts does not increase and the cost does not increase.

Further, even if the cooking plate 1 is repeatedly washed with detergent or water, the surface of the electrode portion 15 becomes dirty because dirt such as oil is difficult to remove. Purification unit 30 and hot plate body 2
The surfaces of the electrode portion 15 and the electrical contacts 19a, 19b are polished by the purifying portion 31 provided on the surface of the electrode portion to remove dirt and become clean.
There is no problem such as poor contact with b, and a good energized state can be maintained during use. Therefore, at the time of cleaning the cooking plate 1 and the hot plate main body 2, the user does not need to perform special cleaning on the electrode portions 15 and the electrical contacts 19a and 19b arranged at positions where cleaning is difficult.
Since a good energized state is maintained, the user does not have to perform a troublesome cleaning operation.

When the cooking plate 1 is mounted on the hot plate main body 2, the gap between the cooking plate 1 and the hot plate main body 2 is closed by the sealing material 35, so that the oil and moisture of the cooked material, etc.
Since dust or the like is prevented from entering the hot plate body 2, the inside of the hot plate body 2 and the electric contacts 19a,
19b is not contaminated, and it is possible to prevent the occurrence of further troubles such as defective contacts and to save the trouble of cleaning.

It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that many modifications and changes can be made to the above-described embodiment within the scope of the present invention. For example, in the above-described embodiment, the planar heating element 14 is fitted and fixed to the back surface of the cooking plate 1, but the conductive material is applied or sprayed on the back surface of the cooking plate formed of a non-conductive material to generate heat. The cooking plate itself may be used as a heating element.

The cooking plate 1 is provided with a flange 12 and the hot plate body 2 is provided with grooves 18a and 18b for engagement.
A groove may be used.

Further, the foreign matter intrusion prevention means 35 is connected to the cooking plate 1
As shown in FIG. 8, if oil or moisture spills on the flange 12 of the cooking plate 1, it spills from the flange 12, and the hot plate body 2 is closed. May invade.
Therefore, as shown in FIG. 9, if the ribs 50 are erected on the outer edge of the flange 12, even if oil or moisture spills on the flange 12, the ribs 50 can prevent entry into the hot plate body 2. . Further, as shown in FIG.
If the upper surface of the flange 12 is provided with a slope 55 so as to become lower from the center toward both sides, oil and water spilled from the cooking plate 1 flow along the slope 55. If an oil pan is provided outside the hot plate main body 2, oil and moisture do not accumulate in the oil pan along the gradient 55 and do not spill into the hot plate main body 2. The slope of the upper surface of the flange may be higher at one end and lower at the other end.

The electric contacts 19a and 19b are fixed to the groove 18a on the left side of the hot plate body 2. In this case, when the cooking plate 1 is slid and mounted, the ends of the electric contacts 19a and 19b are connected to the flange 12a. It can be considered that it is extremely worn or bent when it comes into contact with the device, which may cause poor contact or the like. Therefore, the electric contacts 19a,
When the cooking plate 1 is mounted, it is pushed into the cooking plate 1 and sinks. When the mounting is completed, the electric contacts 19a, 1b are urged by springs or the like.
9b is pressed against the cooking plate 1, the electric contacts 1
Problems such as breakage of 9a and 19b and poor contact can be prevented. The mounting positions of the electrical contacts 19a and 19b are as follows.
The groove 18b on the right side may be used, and each groove 18a, 1
8b.

The fixing means is the engaging groove 25 provided on the flange 12 and the protruding and retractable protrusion 26 provided on the grooves 18a and 18b.
a, 18b may be provided with an engagement groove. Further, the fixing means is not limited to the groove and the projection. For example, an openable / closable lid is provided on the front side of the hot plate main body 2, and the cooking plate 1 is fixed by mounting the cooking plate 1 and closing the open / close lid. You may do so.

Further, if one of the purifying section 30 of the cooking plate 1 and the purifying section 31 of the hot plate body 2 is formed in a roller shape, the cooking plate 1 can be smoothly inserted without being caught.

[0039]

As is clear from the description above, according to the present invention, according <br/> to the onset bright, by engaging the flange of the cooking plate in the groove of the hotplate body, the cooking plate from the side of the hot plate body As it is structured to slide and insert, the cooking plate is easily mounted, the cooking plate does not float up from the hot plate main body, and the electrode part and the electric contact are separated and come into an unstable state. Not be. Moreover, since the cooking plate is fixed to the hot plate main body by the fixing means, the cooking plate does not move and does not easily come off from the hot plate main body. Therefore, even if the hot plate body is moved during cooking, the heated cooking plate does not fall off the hot plate body and does not fall, so that an accident such as a burn to the user does not occur, and safety during use is increased, There is no loss of product perfection. In addition, since the electrode portion and the electrical contact do not separate or stick to each other, current supply to the electrode portion is not interrupted.

Then, a heating element is integrally formed on the cooking plate,
Since the electrical contacts are provided in the grooves of the hot plate body, the electrical contacts are not exposed from the hot plate body even when the cooking plate is removed from the hot plate body. Therefore, since the user cannot carelessly touch the electric contacts, there is no fear of electric shock, and the electric contacts are safe from dust and the like. Further, as compared with the case where the electrical contacts are hidden by a cover or the like, since the cover and a mechanism for moving the cover are not required, the number of components does not increase and the cost does not increase.

[0041]

[0042]

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a cooking hot plate according to an embodiment of the present invention.

2 (a) is a plan view, FIG. 2 (b) is a side sectional view, FIG. 2 (c) is a bottom view, and FIG. 2 (d) is a side view.

FIG. 3 is a sectional view of a groove on the left side of the hot plate body.

FIG. 4 is a side sectional view of a cooking hot plate.

FIG. 5 is a partially enlarged sectional view showing a fixing means for fixing the hot plate body and the cooking plate.

FIG. 6 is a partially enlarged sectional view of a groove of the hot plate main body.

FIG. 7 is a control circuit diagram of a cooking hot plate.

FIG. 8 is a partially enlarged sectional view of a flange of a cooking plate.

FIG. 9 is a partially enlarged sectional view of a flange of a cooking plate showing another embodiment of a foreign matter intrusion prevention means.

FIG. 10 is a sectional view of a flange of a cooking plate showing another embodiment of foreign matter intrusion prevention means.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cooking plate 2 Hot plate main body 12 Flange 14 Heating element 15 Electrode part 18a, 18b Groove part 19a, 19b Electric contact 35 Seal material

Claims (1)

(57) [Claims] 1. A cooking hot plate comprising: a cooking plate on which a food is placed and heated; and a hot plate body on which the cooking plate is detachably mounted, wherein the cooking plate is slid on the hot plate body. An engaging portion for movably engaging is provided, the cooking plate is mounted from a side of the hot plate main body, and fixing means for fixing the cooking plate to the hot plate main body when the cooking plate is mounted, A cooking hot plate, further comprising a cooking plate presence / absence detecting means for detecting whether or not a cooking plate is mounted on the hot plate body.