KR200353220Y1 - Anti-condensing heating apparatus for electric rice pot - Google Patents

Abstract

The present invention relates to an antistatic storage device for an electric rice cooker having a shorted aluminum tape.

The electric storage prevention heating device of the rice cooker according to the present invention, the heating wire 110 that serves as a heat source for heating the ring case 210, the inner pot for cooking and warming is attached, and is attached to one surface of the heating wire 110 A closed loop cross-sectional tape 120 for fixing the heating wire 110 and a portion attached to the side surface tape 120 in parallel with each other and attached to the other surface of the heating wire 110 to conduct heat from the heating wire 110. The shorted aluminum tape 130 and the heat resistant tape 140 connecting the shorted portions of the aluminum tape 130 to each other have a configuration. By the present invention, the aluminum tape 130 is prevented from forming a closed loop shape, thereby preventing the accumulation of electric charges, thereby forming a more reliable and safe product.

Description

Anti-condensing heating apparatus for electric rice pot}

The present invention relates to an electric rice cooker, and more particularly, to a heat storage prevention heating device of the electric rice cooker having a portion of the shorted aluminum tape.

In general, an electric rice cooker is a device that pours washed rice and a certain amount of water into a cooking pot and automatically cooks rice by a heat source from the bottom. This is mainstream.

Hereinafter, with reference to the drawings briefly look at the configuration of the heating device of a general electric rice cooker.

1 is a cross-sectional view showing a cross-sectional view of a general electric rice cooker, FIG. 2 is a front view showing an unfolded general heating device, Figure 3 is a cross-sectional view of a general heating device, Figure 4 is a perspective view showing the appearance of a conventional heating device. .

As shown, the rice cooker is largely composed of a body (1) of the product and a cover (2) for opening and closing the body (1). The inner pot 11 for cooking and warming is detachably installed inside the main body 1, and the working coil 13 for induction heating the inner pot 11 is installed on the outer circumferential surface of the inner pot 11 and the walking The coil base 15 is placed between the coil 13 and the inner pot 11 to support the working coil 13. The coil base 15 is a PET (Polyethylene Terephthalate) -based resin injection molded product having good heat resistance, in order to prevent the calorific value of the induction pot 11 heated to the outside.

And a ring case 21 is attached to the upper side of the inner pot 11, the heating device 40 is installed on the outer surface of the ring case 21 to heat the ring case 21 while operating under power supply Is composed.

Insulating the heating device 40 is formed around the heating device 40 of the ring case 21 is formed around the heating device 40, the front portion of the main body 1 for controlling the rice cooker The control unit 31 is formed, and the control unit base 33 is formed on the side of the control unit 31.

More specifically, the heating device 40 installed on the outer surface of the ring case 21 has a heating wire 43 and one heating wire wrapped around one surface by an aluminum tape 41 and the aluminum tape 41. 43, which is in contact with the other side of the tape and is bonded to the aluminum tape 41 side by side.

Referring to the operation related to the heating device 40 of the electric rice cooker configured as described above are as follows.

When power is supplied to the heating device 40, current flows first into the lead wire 47 and continues to flow into the heating wire 43 connected by the connector 49 connected to the lead wire 47. .

When current flows through the heating wire 43, the heating wire 43 has a high resistance, so Joule's heat is generated. When the joule heat is conducted to the ring case 15, the inner pot 11 It is inverted and can keep warm.

Referring to FIG. 2, the heat conduction process described above will be described in detail. The Joule heat generated from the heating wire 43 may be wrapped around one surface of the heating wire 43 and the aluminum tape 41 may be in contact with a wide surface. Joule heat is conducted, and the joule heat conducted to the aluminum tape 41 is conducted to the end face tape 45 and the joule heat conducted to the end face tape 45 is conducted to the ring case 15. It becomes possible.

And, since heat loss is generated by the heat conduction through the above process, insulator 25 is additionally used to reduce the heat loss.

Meanwhile, the heating device 40 forms a closed loop and is attached to the ring case, thereby transmitting heat evenly to the inside of the cooker.

However, since the heating device 40 of the electric rice cooker is attached to the circular ring case 21, the heating device 40 is bound to form a closed loop, and thus the aluminum tape 41 is also a closed loop. When power is applied to the heating device 40 and current flows continuously in the heating wire 43, electric charges are stored in the closed-loop aluminum tape 41 in contact with the heating wire 43.

This may cause sparks on the surface of the aluminum tape 41, which not only causes malfunction or deterioration of electrical appliances, but also increases the possibility that it may be harmful to the safety of users. .

The present invention is to solve the problems as described above, the heating device is attached to a circular inner pot for the purpose of maintaining a closed loop shape to evenly transfer the Joule heat generated from the heating wire into the inner pot. do.

In addition, an object of the present invention is to provide an anti-electric heating device for an electric rice cooker capable of preventing a phenomenon in which sparks are generated by electric charge storage on aluminum tape when the heating device maintains a closed loop shape.

1 is a cross-sectional view showing a cross section of a general electric rice cooker.

Figure 2 is a front view showing a typical heating device unfolds.

3 is a longitudinal sectional view along the line I-I of FIG. 2;

Figure 4 is a perspective view showing the state of the conventional heating apparatus.

5 is an exploded perspective view of a heating apparatus according to an embodiment of the present invention.

6 is a perspective view of a heating apparatus according to an embodiment of the present invention.

7 is a partial perspective view of an electric rice cooker according to the embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

100 ... Heating 110 ... Heating

120 ... single-sided tape 130 ... aluminum tape

140 ... heat-resistant tape 150 ... lead wire

200 ... Base 210 ... Ring Case

220 ... temperature sensor 230 ... insulation

240 ... Air Guide 250 ... Fan Motor

260 ... fuse

In order to achieve the above object, the present invention is a heating wire that serves as a heat source for heating a ring case in which the inner pot for cooking and warming; A closed loop cross-section tape attached to one surface of the hot wire to fix the hot wire; An aluminum tape attached side by side with the cross-section tape and short-circuited to the other surface of the hot wire to short-circuit the heat conducting heat in the hot wire; It characterized in that it comprises a heat-resistant tape connecting the short-circuited portion of the aluminum tape to each other.

And, the aluminum tape is characterized in that it is attached side by side to the end tape surrounding the hot wire.

In addition, the heat-resistant tape is characterized in that for connecting the short-circuited portion of the aluminum tape to each other to make the heating device in a closed loop shape.

According to the electricity storage prevention heating device of the rice cooker according to the present invention having such a configuration, while the aluminum tape does not take the closed loop form of the original, the heating device has the advantage of forming a closed loop to exhibit excellent performance. .

Hereinafter, preferred embodiments of the present invention as described above will be described in detail with reference to the accompanying drawings. Since the structure of the electric rice cooker according to the present invention is the same as the conventional technology, a separate description is omitted.

5 is an exploded perspective view showing a part of the heating apparatus according to the embodiment of the present invention.

As shown in the drawing, the heating device 100 wraps the heating wire 110 on the other surface of the heating wire 110 and the heating wire 110 attached in contact with one surface of the end face tape 120 and the end face tape 120. It is fixed and the aluminum tape 130 is attached in parallel with the end face tape (120).

A portion of the aluminum tape 130 is short-circuited so that the heating wire 110 is exposed to the outside, and a heat-resistant tape 140 covering and covering the exposed heating wire 110 from above is attached to the single-sided tape 120. do.

The heat resistant tape 140 is attached to the end face tape 120 while fixing the exposed heating wire 110 and connecting to each other while covering the shorted portion of the aluminum tape 130 from above.

6 is a perspective view showing the appearance of a heating apparatus according to an embodiment of the present invention.

As shown in the drawing, the heating device 100 has a shape of a complete closed loop, and a lead wire 150 and a connector (not shown) for supplying power to the heating wire 110 on one side of the heating device 100. Is connected.

A portion of the aluminum tape 130 attached to one surface of the heating device 100 is short-circuited, and the short-circuited portion of the aluminum tape 130 is connected to the heat-resistant tape 140 to the aluminum tape 130. Although the closed loop shape is not formed by itself, the entire heating device 100 is closed loop shape due to the connection of the heat-resistant tape 140.

Figure 7 is an exploded perspective view showing the mounting appearance of the heating apparatus according to an embodiment of the present invention.

As shown in the base portion 200 of the rice cooker is installed a ring case 210 is conducted to the heat conduction, the temperature sensor 220 is provided in the center of the bottom surface of the base portion 200 and the ring The heating device 100 is installed along the side of the case 210, and the heat insulating material 230 is installed on the outside of the heating device 100 to prevent the internal heat from flowing out.

In addition, an air guide 240 serving as a passage of external air is installed below the base part 200, and a fan motor 250 for supplying external air to the air guide 240 is provided below the air guide 240. A fuse 260 is installed between the air guide 240 and the fan motor 250 to prevent overheating.

Hereinafter, the operation of the heating device 100 configured as described above is as follows.

First, a current supplied through the lead wire 150 to which external power is transferred is supplied to the heating wire 110, and the heating wire 110 having the high resistance generates Joule heat and is generated in the heating wire 110. Joule heat will be conducted to the aluminum tape (130).

In addition, since the heating wire 110 is surrounded by one surface of the aluminum tape 130 and one surface of the heating wire 110 is in contact with the wide surface, the joule heat generated by the heating wire 110 is the aluminum tape 130. It is sequentially transmitted to the ring case 210 through the end face tape 120 through) and is eventually conducted to the inner pot to keep warm.

At this time, the heating device 100 should form a closed loop shape to heat the cylindrical inner pot, and the end face tape 120 and the heating wire 110 constituting the heating device 100 also form a closed loop shape.

However, one end of the aluminum tape 130 attached to the heating device 100 is short-circuited so as not to form a closed loop. Therefore, by connecting the shorted end of the aluminum tape 130 to the heat-resistant tape 140 and attaching it to the end face tape 120, the aluminum tape 130 is attached to the closed loop heating device 100 to the heating device. 100 will effectively keep the inner pot.

The scope of the present invention is not limited to the above-exemplified embodiments, and many other modifications based on the present invention will be possible to those skilled in the art within the above technical scope.

As described above, the present invention short-circuits one end of the aluminum tape so that the aluminum tape does not basically form a closed loop shape, so that electric charge is not stored in the aluminum tape even though current flows in the hot wire.

And the aluminum tape does not form a closed loop shape, but by connecting the shorted portion of the aluminum tape with a heat-resistant tape to wrap the heating wire, and by attaching side-by-side to the end face tape, the entire heating apparatus has an effect of maintaining the shape of the closed loop. have.

Therefore, the heating device not only warms the inner pot by wrapping a cylindrical inner pot, but also prevents the occurrence of sparks by not accumulating charge on the aluminum tape, and prevents the spark, thereby making it stable in an electric rice cooker. It is effective to ensure the safety of users and users.

Claims (4)

A heating wire serving as a heat source for heating the ring case in which the inner pot for cooking and warming is seated; A closed loop cross-section tape attached to one surface of the hot wire to fix the hot wire; An aluminum tape attached side by side with the cross-section tape and short-circuited to the other surface of the hot wire to short-circuit the heat conducting heat in the hot wire; Antistatic storage device of an electric rice cooker comprising a heat-resistant tape connecting the shorted portions of the aluminum tape to each other. The apparatus of claim 1, wherein the aluminum tape surrounds the heating wire and is attached side by side to the end face tape. delete The anti-static heating device of an electric rice cooker according to claim 1, wherein the heat-resistant tape connects the shorted portions of the aluminum tape to each other to form a heating device in a closed loop shape.