KR200329240Y1 - Up and down Heating apparatus for electric oven range in convection type - Google Patents

Abstract

The present invention relates to a vertical heating apparatus of the upper and lower heating apparatuses of the convection-type microwave oven, in particular, to easily combine the uniformly arranged structure of the upper heater and the lower heater.

The vertical heating apparatus of the convection-type microwave oven according to the present invention, in the upper and lower heaters for heating the interior of the cooking chamber in the upper and lower parts of the cooking chamber, a plurality of double coupling in the "c" shape coupled to the ceiling of the cooking chamber. Upper heater; A stirring fan installed at the center of the upper heater; The present invention provides a vertical heating apparatus of a convection type microwave oven including a lower heater inserted into and coupled to a heater assembly installed below the cooking chamber.

Description

Up and down Heating apparatus for electric oven range in convection type}

The present invention relates to a vertical heating apparatus of the upper and lower heating apparatuses of the convection-type electronic oven range, in particular, to easily combine the structure change of the upper heater and the lower heater.

In general, a microwave oven is a device that cooks food by frictional heat between molecules by radiating high frequency from the magnetron into the cooking chamber and repeatedly converting the molecular arrangement of moisture contained in the food. BACKGROUND ART A convection microwave oven equipped with convection means is commercially available for forcibly circulating a heater and hot air installed in a cooking chamber to produce food by convection.

1 is a side cross-sectional view of a conventional convection type electric oven.

Referring to FIG. 1, the door 11 is installed at the front of the cooking chamber 10, and the heater chamber 30 is installed at the rear of the cooking chamber 10. The heater chamber 30 is composed of a convection fan 40 coupled to the rotating shaft 21 of the motor 20 and a heater 50 that is generated on the four sides of the convection fan to generate heat, the cooking chamber 10 and the heater chamber. Vents 41 and 42 formed at the center of the rear wall and upper and lower portions between the rear walls 30 are formed, and a dish 12 on which a cooking object is located is provided at a lower part of the cooking chamber, and a fan 60 is formed at the upper part of the cooking chamber. ) And the upper heater (61, sheath heater) is installed, the lower heater 80 is installed. Reference numeral 62 is a halogen heater, 63 is a heater cover, 70 is a fan (evacuation fan).

Referring to the accompanying drawings, a conventional convection type microwave oven configured as described above is as follows.

First, the cooking chamber 10 has a door 11 installed at the front, and the heater chamber 30 is provided at the rear of the cooking chamber. When the electric oven is operated, high frequency radiation is emitted from the magnetron (not shown) to the cooking chamber 10, and radiant heat generated from the upper heater 61 and the lower heater 80 is transferred to the food. The convection fan 40 inside the heater chamber 30 rotates by the motor 20 to suck the air in the cooking chamber, heat it by the heater 50, and then discharge it back into the cooking chamber through another path. Do this.

To this end, the air inside the cooking chamber is sucked through the vent 41 processed at the center of the rear wall between the cooking chamber 10 and the heater chamber 30, and the motor 20 and the rotating shaft ( The hot air is formed by the fan 40 connected by 21 and the heater 50 installed on all sides of the fan. That is, the motor 30 rotates the convection fan 40 together with the operation of the microwave oven, and at the same time, the heater 50 operates to generate heat for heating the ambient air. The convection fan 40 draws the air around it into the heater chamber 30 and blows it into the cooking chamber 10. Therefore, as shown in FIG. 2, the ambient air heated by the heat generated by the heaters 50 installed on the four sides of the fan in a straight line forms hot air forcedly circulated by the fan 40. The hot air is blown into the cooking chamber 10 through the vent 42 formed on the rear plate of the cooking chamber 10 by the fan 40 to undergo forced convection to supply the heat energy required for cooking of the workpiece.

2 is a plan view illustrating a conventional upper heater. Referring to FIG. 2, the upper heater is a sheath heater, and the plurality of sheath heaters 61a and 61b are coupled in a symmetrical shape to each other, and as the stirrer fan 60 is installed at the center thereof, the conventional sheath heater 61a is provided. 61b) If the structure is used as it is, the gap due to the central fan becomes wider.

That is, the heater (61a, 61b) has a large rectangular border of the external heater (61a), the internal heater (61b) is bent in a double quadrangular shape, is fixed to each part by a fastening member (61c). Accordingly, as shown in FIG. 2, heater pipe separation intervals between d1 and d2 in one direction and d4 and d5 in the other direction are different from each other, and the spacing between the heater pipes is too wide.

However, the rectangular structure of the upper heater causes a problem of crack heating when cooking a large amount of food in a square container. That is, due to the installation of the stirrer fan 60, a space for installing the upper heaters 61a and 61b is required, and when the users place food in the center part, there may be a problem in the crack heating of the food.

The present invention has been devised to solve the above problems, in order to change the lower heater structure coupled to the lower part of the cooking chamber to be cracked heating, the shape of the plurality of sheath heaters are arranged in a double shape with a "c" shape. The purpose is to provide an upper heating structure.

Another object is to provide a lower heating device for fixing the sealing portion of the lower heater to the heater bracket and inserting the heater bracket, while screwing the heater bracket to the heater assembly.

1 is a side cross-sectional view showing a vertical heating apparatus of a conventional convection type oven.

Figure 2 is a plan view of the upper heater of the conventional oven range.

3 is a plan view of the upper heater of the oven range according to the present invention.

Figure 4 is a heat transfer state when the upper heater of Figure 3 is applied to the oven range.

5 is a lower heater coupling state of the oven range according to the present invention.

6 is an exploded side view of the lower heater and the heater assembly of FIG.

8 is a front view of the lower heater coupling of FIG.

<Description of Symbols for Main Parts of Drawings>

100 ... cooking room 111 ...

161 ... upper heater 160 ... sterile fan

170 Discharge Unit 180 Lower Heater

181 Heater bracket 182 Heater terminal

190 Heater assembly 191

Vertical heating apparatus of the convection-type electronic oven range according to the present invention for achieving the above object,

In the upper and lower heaters for heating the cooking material in the cooking chamber in the upper and lower cooking chamber,

An upper heater coupled to a plurality of units in a "c" shape coupled to the ceiling of the cooking chamber;

A stirrer fan installed at the center of the upper heater;

And a lower heater inserted into and coupled to a heater assembly installed below the cooking chamber.

Preferably, the upper heater is characterized in that the heater pipe spacing of the "c" shape in the portion except for the center is almost the same.

Preferably, the sealing portion of the lower heater is characterized in that the heater bracket is screwed to the heater assembly.

Hereinafter, with reference to the accompanying drawings as follows.

3 is a plan view of the upper heater of the oven range according to the embodiment of the present invention, the upper heater 161 is a structure in which the heater "161a, 161b" of the "C" shape is double coupled, the stirrer fan ( 160 is combined.

FIG. 5 is a diagram illustrating a lower heater coupling state of the oven range according to the present invention. The heater assembly 190 is provided below the cooking chamber, and the sealing unit of the lower heater 180 is coupled to the heater bracket 181, and then the heater assembly 190 is provided. After insertion into the) is a structure that can fasten the heater assembly 190 and the heater bracket 182 with a screw 185.

Referring to the accompanying drawings, the upper and lower heating devices of the electronic oven range according to the embodiment of the present invention configured as described above are as follows.

The upper heating device according to the present invention with reference to Figures 3 and 4 as follows.

As shown in FIG. 3, the upper heater 161 is a sheath heater, in which a plurality of heaters 161a and 161b are arranged in a double shape in a “c” shape, and an external heater 161a is a large “c” character. The inner heater 161b has a shape and is coupled in a small "-" shape.

The intervals d1 ', d2', d4 ', and d5' between the heaters 161a and 161b of the upper heater 161 are almost the same, and d3 'is also formed smaller than the structure of FIG. That is, the left / right / up / down circumference around the stirrer fan 160 in the center has a constant heater pipe arrangement structure.

When cooking a cooking object by the shape of the upper heater 161 is uniformly heated as shown in Fig. 4 (a), the square plate (p) in Fig. 4 (b) is to be seated When heated evenly.

5 to 7 is a lower heating device according to an embodiment of the present invention.

As shown in FIG. 5, the lower heater 180 is inserted using the heater assembly 190 which couples the lower heater 180 into the heater assembly 190 installed below the cooking chamber 100. The heater bracket 181 is fastened to the heater assembly 190 with screws 185.

A detailed description with reference to FIGS. 6 and 7 is as follows. 6 is an exploded perspective view and FIG. 7 is a combined front view.

In order to easily install the lower heater 180, the heater terminal 182 is fixed to the heater bracket 181 side by side as shown in FIG. 7 to easily install the heater assembly 190. In this state, the lower heater 180 is fixed. When inserted into the heater assembly 190 using the heater bracket 181 is guided by a guide protrusion 191 protruding from the inner upper / lower. Thereafter, the screw 185 is fastened to the screw hole 183 provided at the lower end of the heater bracket 181 so that the heater bracket 181 is coupled to the front of the heater assembly 190.

As described above, according to the vertical heating apparatus of the convection-type electronic oven range according to the present invention, by changing the shape of the upper heater to a shape that evenly spaced between the heaters, there is an effect of uniform heating.

In addition, it is easy to combine the lower heater by the heater bracket and the heater assembly.

Claims (3)

In the upper and lower heaters for heating the cooking material in the cooking chamber in the upper and lower cooking chamber, An upper heater coupled to a plurality of units in a "c" shape coupled to the ceiling of the cooking chamber; A stirrer fan installed at the center of the upper heater; Up and down heating apparatus of the convection-type electronic oven range comprising a lower heater that is inserted and coupled to the heater assembly installed in the lower cooking chamber. The upper and lower heating apparatuses of the convection type electric oven range according to claim 1, wherein the upper heaters have the same spacing between the heaters having a "C" shape in a portion excluding the center portion. The method of claim 1, The encapsulation portion of the lower heater is coupled to the heater bracket and the heating bracket up and down heating apparatus of the convection type electronic oven, characterized in that the screw assembly to the heater assembly.