KR0129633Y1 - Safety device of a cooking utensil - Google Patents

Abstract

The present invention relates to a safety device for a cooker that detects an internal temperature due to overheating of the cooker and automatically cuts off the power when a predetermined temperature or more is provided. The temperature control unit 5 selects a cooking temperature desired by the user and the temperature. Halogen heaters 13 and 14 and auxiliary heaters 15 that generate heat by receiving a power voltage supplied from the AC power input terminal 10 according to the cooking temperature selected by the controller 5, and the halogen heaters 13 and 14. ) And the heating temperature of the halogen heaters 13 and 14 and the auxiliary heater 15 by sensing the surface temperature of the halogen heaters 13 and 14 and the auxiliary heater 15 that change when the auxiliary heater 15 is heated. A cooling fan rotating according to the driving of the motor 33 to cool the internal temperature heated when the halogen heaters 13 and 14 and the auxiliary heater 15 are heated. 35) and for cooking when the halogen heaters 13 and 14 and the auxiliary heater 15 are heated. A high temperature display lamp (31) indicating that the container placing member (29) having a high temperature and the internal temperature of the cooker due to overheating of the halogen heater (13, 14) and the auxiliary heater (15) are detected. If the above is characterized by consisting of a temperature fuse 23 to automatically cut off the power.

Description

Cooker Safety Device

1 is an external perspective view of a cooker according to an embodiment of the present invention.

2 is a schematic plan view of the cooker having the upper case removed in one embodiment of the present invention.

3 is a detailed circuit diagram of a safety device of a cooker according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

1: main body 5: temperature control unit

13,14: halogen heater 15: auxiliary heater

21: temperature control unit 23: temperature fuse

25: bracket 27: screw

29: container housing member 31: high temperature display lamp

33: motor 35: cooling fan

The present invention relates to a cooker such as a halogen electric range (or halogen range), and more particularly relates to a safety device for a cooker that detects the internal temperature due to overheating of the cooker and automatically cuts off the power when a predetermined temperature or more.

In general, in a conventional cooker, when the power plug is connected to the power supply terminal, and the desired cooking temperature is selected by adjusting the thermal power control knob, the front of the commercial AC power supplied from the AC power input terminal is connected to the halogen heater and the auxiliary heater. The high heat is generated as the current flows through the halogen heater and the auxiliary heater.

At this time, the high heat generated in the halogen heater and the auxiliary heater is transferred to the surface of the cooking vessel of the ceramic glass, the upper plate on which the cooking vessel is placed, the cooking vessel starts to heat.

When the cooking vessel is heated by the heat generation of the halogen heater and the auxiliary heater, when the cooking vessel is heated by the heat generation of the halogen heater and the auxiliary heater, when the internal temperature of the cooker rises above a predetermined temperature (about, 70 ℃) , The cooling motor is driven by the control of the thermostat to cool the internal temperature and at the same time the high temperature caution lamp is turned on because the ceramic glass which is the upper plate of the cooker is high temperature.

When a predetermined time elapses and the internal temperature drops below a predetermined temperature according to the driving of the cooling motor, the power applied to the cooling motor and the high temperature caution lamp is cut off under the control of the thermostat, and the cooling motor is stopped. The high temperature warning lamp goes out.

At this time, the heat generated from the halogen heater and the auxiliary heater can be easily adjusted with a thermostat.

However, in such a conventional method, when the thermostat for controlling heat generated from the halogen heater and the auxiliary heater fails or the temperature is not adjusted automatically due to contact, the internal temperature rises above a predetermined temperature. Even if the power supply to the halogen heater and the auxiliary heater is not cut off, the halogen heater and the auxiliary heater continue to generate heat, so there is an inherent risk of electric shock and fire, and the container is damaged to protect the product. There was a problem.

Therefore, the present invention is made to solve the above problems, the object of the present invention is to detect the internal temperature caused by the overheating of the cooker to remove the risk of fire and electric shock by automatically shutting off the power when a predetermined temperature or more. In addition to providing a safety device for a cooker that can protect a product by preventing damage to a container, and can satisfy a user's reliability of the product.

In order to achieve the above object, a stabilizer for a cooker according to the present invention includes a temperature control unit for selecting a cooking temperature desired by a user, and a power supply supplied from an AC power input terminal according to a cooking temperature selected by the temperature control unit. A halogen heater and an auxiliary heater that generate a heat by receiving a voltage, and a surface temperature of the halogen heater and the auxiliary heater that is changed when the halogen heater and the auxiliary heater are heated, and thus the heat heated when the halogen heater and the auxiliary heater are heated A cooling fan that rotates according to the operation of the motor to cool the internal temperature of the cooker, a high temperature display lamp indicating that the container housing member in which the cooking vessel is placed at a high temperature when the halogen heater and the auxiliary heater are heated, the halogen heater and Detects the internal temperature of the cooker due to overheating of the auxiliary heater and turns the power off when it is above a predetermined temperature. It is characterized by consisting of a temperature fuse blocking the copper.

Hereinafter, with reference to the accompanying drawings an embodiment of the present invention will be described in detail.

1 and 2, reference numeral 1 denotes a main body of a cooker, and a right side of the main body 1 is equipped with a power plug 3 connected to a power terminal not shown to supply power to the cooker. have.

On the front of the main body 1, a temperature control knob (5; hereinafter referred to as a temperature control unit) consisting of a rotary switch to easily adjust the temperature (heating power) of heat generated from a halogen heater and an auxiliary heater to be described later according to a cooking purpose. And a lower case 7, which is a heat-resistant component for fixing and assembling parts, is mounted at a lower end of the main body 1, and parts of the lower case 7 are mounted on an upper side of the lower case 7. At the same time, the upper case 9 is mounted on which the cooking vessel is protected.

In addition, linear halogen heaters 13 and 14 having excellent instantaneous heat generation performance are arranged in a straight line at the inner center of the main body 1, and the halogen heaters 13 and 14 are disposed on the left and right sides of the halogen heaters 13 and 14. At the time of heat generation of 14, an auxiliary heater 15 for simultaneously heating is mounted to uniformly heat the entire temperature of the container placing member 29 formed in the upper case 9.

The halogen heaters 13 and 14 are disposed outside the halogen heaters 13 and 14 and the auxiliary heaters 15 so that heat generated when the halogen heaters 13 and 14 and the auxiliary heaters 15 generate heat only upwards. ) And a circular heat insulating member 17 for insulating the lower end and side surfaces of the auxiliary heater 15 is mounted.

In addition, the inner upper side of the step detects the surface temperature of the halogen heater (13, 14) and the auxiliary heater (15) when the halogen heater (13.14) and the auxiliary heater (15) heats the halogen heater (13, 14) and two pairs of bimetallic thermostats 211 and 212 to automatically control the heating temperature of the halogen heaters 13 and 14 and the auxiliary heater 15 by supplying or cutting off the power applied to the auxiliary heater 15. The temperature control unit 21 is diagonally mounted above the halogen heaters 13 and 14 and the auxiliary heater 15.

In addition, a support member 19 made of iron pieces is mounted on an outer circumference of the heat insulating member 17 to support the heat insulating member 17 by a spring (not shown), and a predetermined position outside the support member 19. When the halogen heaters 13 and 14 and the auxiliary heaters 15 generate heat when the internal temperature of the main body 1 is sensed and is equal to or higher than a predetermined temperature (about 198 ° C.), the halogen heaters 13 and 14 and The temperature fuse 23 which is short-circuited to cut off the power applied to the auxiliary heater 15 is fixed to the bracket 25.

On the other hand, the temperature fuse 23 and the bracket 25 is fixed to the outer surface of the support member 19 by a screw 27.

In addition, the surface of the upper case 9, which is an outer upper surface of the support member 19, efficiently transmits the heat generated when the halogen heaters 13 and 14 are heated, and allows the cooking vessel to be placed thereon. The container placing member 29 is made of ceramic crystallized glass.

Further, in the drawing, the surface of the halogen heaters 13 and 14 and the auxiliary heaters 15 when the halogen heaters 13 and 14 and the auxiliary heaters 15 generate heat at a predetermined position of the container placing member 29. When the temperature rises above a predetermined temperature (about 70 ° C.), a high temperature display lamp 31 is mounted so as to indicate that the container placing member 29 is at a high temperature, and is located below the container placing member 29. The bottom of the lower case 7 is formed with an exhaust port 31 for discharging the heated air in the cooker to the outside.

The left side of the support member 19 is rotated by driving the motor 33 to cool the inside of the main body 1 heated when the halogen heaters 13 and 14 and the auxiliary heater 15 are heated. The cooling fan 35 is mounted, and a suction port 37 is formed at the lower end of the cooling fan 35 so that external air is sucked into the main body 1 by the rotational force of the cooling fan 35.

A circuit diagram for controlling the operation of the cooker configured as described above will be described with reference to FIG. 3.

In FIG. 3, reference numeral 23 detects the internal temperature of the main body 1 due to overheating of the halogen heaters 13 and 14 and the auxiliary heater 15, and if it is above a predetermined temperature (198 ° C), The temperature fuse is connected to one side of the AC power input terminal 10 so as to cut off the power applied to the halogen heaters 13 and 14 and the auxiliary heater 15.

And, (5) is a temperature control unit for connecting the output terminal of the AC power input terminal 10 to the corresponding contact so that the halogen heater (13, 14) and the auxiliary heater (15) generates heat at a desired thermal power (cooking temperature) to be.

In addition, (13, 14) is a halogen that generates high-temperature heat instantaneously by receiving the power supply voltage of the commercial AC power supplied from the AC power input terminal 10 in accordance with the cooking temperature selected by the temperature control unit (5) 15 is a heater and simultaneously receives a power supply voltage supplied from the AC power input terminal 10 so as to uniformly heat the entire temperature of the container placing member 29 when the halogen heaters 13 and 14 generate heat. Auxiliary heater that generates heat.

In addition, (21) detects the surface temperature of the halogen heater (13, 14) and the auxiliary heater 15 to supply or cut off the power applied to the halogen heater (13, 14) and the auxiliary heater (15) The inside of the main body 1 which is hot when the halogen heaters 13 and 14 and the auxiliary heater 15 are automatically adjusted, and the halogen heaters 13 and 14 and the auxiliary heater 15 are heated. It is a temperature control part which consists of two dermastats 211.212 which turn on / off so that the container placing member 29 in which a container is mounted while cooling a temperature is high temperature.

In the drawing, reference numeral 31 denotes a surface temperature of the halogen heaters 13 and 14 and the auxiliary heaters 15 at a predetermined temperature (70 ° C) when the halogen heaters 13 and 14 and the auxiliary heaters 15 generate heat. When it rises above), the container placing member 29 receives a high temperature by receiving the power voltage supplied from the AC power input terminal 10 under the control of the temperature control unit 21 in which the dermastat 211 is automatically turned on. High temperature display lamp that lights up to indicate

33 denotes that the surface temperatures of the halogen heaters 13 and 14 and the auxiliary heater 15 are higher than or equal to a predetermined temperature (70 ° C.) when the halogen heaters 13 and 14 and the auxiliary heater 15 are heated. When rising, the thermostat 211 cools the internal temperature of the main body 1 that is heated by receiving a power voltage supplied from the AC power input terminal 10 under the control of the temperature control unit 21 which is automatically turned on. Driving the cooling fan 35 to suck outside air into the main body 1 through the inlet 37 and discharge hot air in the main body 1 through the exhaust port 31 to the outside. It is a motor.

Hereinafter, the effect of the safety device of the cooker configured as described above will be described.

First, the power plug 3 is connected to a power terminal (not shown), and then the temperature control unit 5 is adjusted to select a desired cooking temperature (strong, medium, weak, warm, etc.) of the AC power input terminal 10. The movable contact 51 of the temperature regulating section 5 connected to the output terminal is connected to the fixed contact 52 corresponding to the cooking temperature selected by the temperature regulating section 5.

At this time, since the dermastat 212 of the temperature control unit 21 connected to the AC power input terminal 10 is in an ON state, the current flows through the AC power input terminal 10 by the power voltage supplied from the AC power input terminal 10. It is applied to the auxiliary heater 15 and the halogen heater 13, 14 through the temperature fuse 23 and the temperature control unit 5 at one end of the AC power input terminal through the thermostat 212 of the temperature control unit 21 ( The closed loop is constructed by flowing to the other end of 10).

When the closed circuit is configured as described above, current flows through the halogen heaters 13 and 14 and the auxiliary heater 15, and resistance heat due to the current starts to be generated in the halogen heaters 13 and 14 and the auxiliary heater 15. do.

The temperature of the resistance heat generated by the halogen heaters 13 and 14 and the auxiliary heater 15 rises to a high temperature in an instant, and thus the upper side of the halogen heaters 13 and 14 and the auxiliary heater 15, that is, the container placing member 29. It is delivered to the surface of the mounted cooking vessel and the cooking vessel begins to heat up.

When the cooking vessel is heated by the heat generated by the halogen heaters 13 and 14 and the auxiliary heater 15, the temperature controller 21 senses the surface temperature of the halogen heaters 13 and 14 and the auxiliary heater 15. The detected surface temperature rises above a predetermined temperature (about 70 ° C.), and the dermastat 211 is automatically turned on so that the power voltage supplied from the AC power input terminal 10 is displayed at a high temperature display lamp 31 and a motor ( 33).

Accordingly, the current is applied to the high temperature display lamp 31 through the temperature fuse 23 and the temperature control unit 5 at one end of the AC power input terminal 10 by the power voltage supplied from the AC power input terminal 10. The high temperature display lamp 31 is turned on by flowing to the other end of the AC power input terminal 10 through the thermostat 211 of the temperature control unit 21.

Accordingly, the user is careful while confirming that the upper plate of the container placing member 29 on which the cooking container is placed is a high temperature.

On the other hand, the current is applied to the motor 33 through the temperature fuse 23 and the temperature control unit 5 at one end of the AC power input terminal 10 by the power voltage supplied from the AC power input terminal 10. The motor 33 is driven by flowing to the other end of the AC power input terminal 10 through the dermastat 211 of the controller 21.

When the motor 33 is driven, the cooling fan 35 integrally mounted to the motor 33 rotates according to the driving of the motor 33 so that external air is sucked in by the rotational force of the cooling fan 35. At the same time as being sucked into the main body 1 through 37), the hot air inside the main body 1 is discharged to the outside through the exhaust port 31 to cool the inside of the hot main body 1.

When a predetermined time has elapsed and the internal temperature drops below a predetermined temperature (70 ° C.) as the cooling fan 35 is driven, the thermostat 211 of the temperature control unit 21 is automatically turned off and the motor 33 And the power applied to the high temperature display lamp 31 are cut off, the motor 33 stops driving, and the high temperature display lamp 31 is turned off.

As described above, the inside of the main body 1 is controlled while driving the high temperature display lamp 31 and the motor 33 according to the surface temperature which is changed during the heat generation of the halogen heaters 13 and 14 and the auxiliary heater 15. The temperature is maintained at a predetermined temperature.

On the other hand, the temperature control unit 21 detects the surface temperature changes when the heat of the halogen heater (13, 14) and the auxiliary heater (15) by the thermostat according to the cooking temperature selected by the temperature control unit (5) 212 is automatically on / off control to supply or cut off the power voltage applied from the AC power input terminal 10 to the halogen heaters 13 and 14 and the auxiliary heater 15 to assist with the halogen heaters 13 and 14. The heating temperature of the heater 15 is controlled to a constant temperature.

However, the temperature control unit 21 which automatically adjusts the surface temperature of the halogen heaters 13 and 14 and the auxiliary heater 15 according to the cooking temperature selected by the temperature control unit 5 is broken or the contact is stuck. When the temperature is not automatically controlled, power is continuously applied to the halogen heaters 13 and 14 and the auxiliary heater 15 regardless of the surface temperatures of the halogen heaters 13 and 14 and the auxiliary heater 15. 13 and 14 and the auxiliary heater 15 gradually generates a high temperature heat, thereby gradually increasing the temperature inside the main body 1.

In addition, if the hot air inside the body 1 is not discharged to the outside due to a failure of the motor 33 that cools the inside of the body 1, the inside of the body 1 is the same as in the failure of the temperature control part 5. The temperature of gradually rises.

As such, when the internal temperature of the main body 1 gradually rises due to the failure of the temperature control unit 21 and the motor 33, the temperature fuse 23 detects the internal temperature of the main body 1. If it rises above temperature, the thermal fuse 23 will melt | dissolve and a conducting wire will short-circuit.

Therefore, the power supply voltages applied to the halogen heaters 13 and 14 and the auxiliary heater 15 are automatically cut off from the AC power input terminal 10 while the halogen heaters 13 and 14 and the auxiliary heater 15 stop heating. By doing so, it is possible to eliminate the risk of damage to the container or fire due to overheating of the halogen heaters 13 and 14 and the auxiliary heater 15.

According to the safety device of the cooker according to the present invention, as described above, by detecting the internal temperature due to the overheating of the cooker to automatically cut off the power when a predetermined temperature or more can not only eliminate the risk of fire and electric shock accident In addition, it is possible to protect the product by preventing the breakage of the container and has an excellent effect of satisfying the user's trust in the product.

Claims (2)

In the cooking apparatus, a temperature controller 5 for selecting a cooking temperature desired by a user and a power source supplied from the AC power input terminal 10 according to the cooking temperature selected by the temperature controller 5 generate heat. The halogen heaters 13 and 14 and the auxiliary heaters 15 and the halogen heaters 13 and 14 and the auxiliary heaters 15 which change when the halogen heaters 13 and 14 and the auxiliary heaters 15 generate heat. The temperature control unit 21 for controlling the heating temperature of the halogen heater (13, 14) and the auxiliary heater 15 by sensing the surface temperature, and the heating of the halogen heater (13, 14) and the auxiliary heater (15) The cooking vessel is placed at the time of heating of the cooling fan 35 and the halogen heaters 13 and 14 and the auxiliary heater 15 which rotates according to the driving of the motor 33 to cool the internal temperature of the cooker that is hot. High temperature display lamp 31 to indicate that the container placing member 29 is a high temperature, the halogen heater (13, 14) and the auxiliary heater (15) Safety device for a cooker, characterized in that consisting of a temperature fuse (23) to automatically detect the internal temperature of the cooker due to overheating of the power supply if the predetermined temperature or more. The method of claim 1, wherein the temperature fuse 23 is the halogen heater (13, 14) and the auxiliary heater to sense the internal temperature of the cooker due to overheating of the halogen heater (13, 14) and the auxiliary heater (15) A safety device for a cooker, characterized in that the bracket (25) is fixed to the outside of the support member (19) on which the (15) is seated via a screw (27).