KR101307759B1 - Cooking device ＆ Coating method of the wall for the same - Google Patents

Abstract

The present invention, the main body to form an appearance; A cavity forming a space for heating and cooking a cooking object; It provides a cooking apparatus comprising a spray device: by spraying a solution having a super water-repellent property on the inner surface of the cavity, to coat the inner surface of the cavity.

Here, the solution is preferably a solution containing a silicone-based oil.

In addition, the spray apparatus, the tank for storing the solution; A nozzle for injecting a solution into the cavity inner surface; And pump for transferring the solution of the tank to the nozzle.

And, it is preferable that the heating device for heating so that the coating layer formed by the solution sprayed on the inner surface of the cavity is fixed to the wall.

Therefore, according to the cooking apparatus and the wall coating method of the present invention, since the inner wall of the cavity of the cooking appliance is coated with a solution having super water repellency in response to a predetermined period or a user's input, the initial state even if time or the number of times of use are accumulated It is effective to maintain the cleaning property such as.

Cooking Appliances, Enamel, Super Water Repellent, Silicone Oil

Description

Cooking device & Coating method of the wall {Cooking device & Coating method of the wall for the same}

1 is a perspective view showing the appearance of a cooking appliance according to a preferred embodiment of the present invention;

2 is a configuration diagram schematically showing the inside of the cooking appliance of FIG. 1;

3a to 3c is a view showing the difference in water repellency according to the contact angle to the water droplets and the surface,

3A shows a case where the surface is superhydrophilic;

3B shows a case in which the surface is water repellent;

3c shows a case where the surface is super water-repellent; And,

Figure 4 is a flow chart showing a preferred embodiment of the wall coating method of the cooking apparatus of the present invention.

[Description of Drawings]

100: main body 102: door

104: control unit 106: rack

110: cavity 122: top heater

124: bottom heater 126: convection heater

130: spray device 132: tank

134: nozzle 136: pump

S: surface W: water drop

The present invention relates to a cooking appliance, and more particularly, to a cooking appliance that makes it easier to clean contaminants such as food residues attached to the wall of the cooking appliance.

A cooking apparatus is an apparatus for heating food and cooking, and typical examples thereof include a gas range, a microwave oven, and an oven.

In general, the oven is composed of a cavity constituting the cooking space, a heater for heating the inside of the cavity.

Therefore, the user puts a cooking object in a tray or the like and puts it inside the cavity and heats it through a heater.

However, when food is heated, overflow or fried food debris is attached to the wall of the cooking apparatus. Since the inside of the cavity is heated by heat, it may be more strongly attached to the wall, which is difficult to clean. Range also had problems.

Recently, in order to make cleaning easier, a method of heating the inside of the cavity to a high temperature after cooking is used to burn off the residues on the wall. This method is to burn the residue by heating the inside of the cavity to about 460 ℃ or more for 2 hours or more.

However, this method also has the disadvantage of consuming excessive time and energy, and the inside of the cavity is heated to a very high temperature. Considering the installation of cookers such as ovens in a built-in manner, the danger of fire as well as the surrounding furniture It may cause thermal deformation problems of these, in order to prevent the use of more heat insulating material is difficult to manufacture and design, the cost increases, there is a problem that the internal capacity of the cavity is reduced by the thickness of the heat insulating material.

In addition, a method of coating the inner surface of the cavity with Teflon, etc. has been proposed, but the method of coating has a problem in that the coating layer wears over time and the cleaning property deteriorates.

The present invention is to solve the above problems, it is an object of the present invention to provide a cooking apparatus that is easy to clean contaminants without heating to a high temperature. In addition, another object of the present invention to provide a cooking apparatus that does not deteriorate even after the use time.

In order to achieve the above object, the present invention, the main body to form an appearance; A cavity forming a space for heating and cooking a cooking object; It provides a cooking apparatus comprising a spray device: by spraying a solution having a super water-repellent property on the inner surface of the cavity, to coat the inner surface of the cavity.

Here, the solution is preferably a solution containing a silicone-based oil.

In addition, the spray apparatus, the tank for storing the solution; A nozzle for injecting a solution into the cavity inner surface; And pump for transferring the solution of the tank to the nozzle.

And, it is preferable that the heating device for heating so that the coating layer formed by the solution sprayed on the inner surface of the cavity is fixed to the wall.

The heating device may be a heater for heating the cavity when cooking, the heating device may be made of a high frequency oscillation device for heating the solution by emitting microwaves.

In addition, the present invention, the coating step of spraying the solution into the cavity through the nozzle so that the super water-repellent solution is coated on the inner wall of the cavity; It provides a cooking apparatus wall coating method comprising: a fixing step of fixing the sprayed solution to the cavity wall surface.

Here, the fixing step may be a step of heating the inside of the cavity as a heating device.

In addition, the coating step and the fixing step may be automatically repeated as a predetermined cooking device use cycle, or may be performed by a user input.

Therefore, according to the cooking apparatus and the wall coating method of the present invention, since the inner wall of the cavity of the cooking appliance is coated with a solution having super water repellency in response to a predetermined period or a user's input, the initial state even if time or the number of times of use are accumulated It is effective to maintain the cleaning property such as. In addition, since the cleanability of the cavity is always maintained in the same state as the original state, there is an effect that the inside of the cavity does not need to be heated to a high temperature for cleaning.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the cooking apparatus of the present invention and its wall coating method will be described.

In addition, in the following description, the present embodiment describes an oven as an example, but is applicable to a microwave oven and the like.

1 is a perspective view illustrating an appearance of a cooking appliance according to the present embodiment, and FIG. 2 is a view schematically illustrating the inside of the cooking appliance. The cooking apparatus according to the present embodiment includes a main body 100 forming an exterior, a cavity 110 formed inside the main body 100 to form a space for heating and cooking a cooking object, and the cavity 110. It consists of a spray device 130 for injecting a solution having water repellency on the inner surface.

In addition, a control unit 104 for controlling the cooking appliance is installed on the front of the main body 100. And, the door 102 for opening and closing the cavity on the front of the main body 100 is hingedly installed. Of course, the control unit 104 may be remotely controlled, and the door 102 may be installed to be slidable from the front of the main body 100.

In addition, the inside of the cavity 110 is a rack 106 that can accommodate food. The rack 106 is installed to enable adjustment of the position inside the cavity 110 according to the intention of the user.

Rack supporters 108 for supporting the rack 106 are installed at both ends of the rack 106. The rack supporter 108 includes a plurality of rack guides 108b on which the rack 106 can be supported, and a guide support member 108a for supporting the rack guide 108b.

In addition, the cooking may include a heater for heating the inside of the cavity 110. The heater is generally composed of an upper surface heater 122 provided on the upper surface of the cavity 110 and a lower surface heater 124 provided on the lower surface, and the convection heater 126 and the fan for heating through convection on the rear surface. Etc. may be further provided. However, the present invention is not limited by the positions of the heaters 122, 124, and 126, and in the case of a microwave oven, a high frequency oscillator (not shown) for microwave emission may be installed instead of the heater.

The solution is a solution for coating the wall surface inside the cavity 110, and preferably has water repellency, more preferably super water repellency.

With such a solution, in the present embodiment, an oil of silicone series is given as an example, but is not necessarily limited thereto.

Examples of the silicone-based oil are polymethylhydrogensiloxane having a chemical formula of (CH ₃ ) _3- (Si) -O- [SiHOCH ₃ ] _n- (Si)-(CH ₃ ) ₃ .

The super water repellency is briefly described with reference to FIGS. 3A to 3C as follows. When the water droplets W are formed on the surface S of the material, the surface S and the water droplets W form an angle, which is called a contact angle α.

The larger the contact angle is, the lower the surface energy of the material surface S is, so that the water repellency that pushes out the water becomes larger. Generally, as shown in FIG. As shown in Fig. 3B, a degree of contact angle greater than 90 ° is expressed as having water repellency. In particular, as shown in Fig. 3C, the case where the contact angle becomes 140 ° or more is expressed as having super water repellency. If the surface (S) of the material has a super water-repellent state, the surface energy is extremely low, the water droplets (W) of the surface (S) is not buried on the material surface (S) while maintaining a more spherical shape. In addition, such a tendency is applied not only to water but also to an object having other components such as oil, and the lower the surface energy, the more difficult to attach.

In addition, the spray apparatus 130 includes a tank 132 for storing the solution, a nozzle 134 for spraying the solution on the inner wall surface of the cavity 110, and a solution in the tank 132 as a nozzle. It comprises a pump 136 to convey.

Here, the tank 132 is preferably provided to replenish the solution from the outside.

In addition, a plurality of nozzles 134 may be provided to uniformly coat the solution on the inner wall surface of the cavity 110.

On the other hand, it is necessary to heat the solution in order to solidify the solution sprayed on the inner wall surface of the cavity 110 does not continue to flow. Therefore, a heating device capable of heating the solution may be further provided.

Here, the solution may be fixed by heating the cavity using the heaters 122, 124, and 126 that heat the inside of the cavity 110 as the heating device, but a separate heater (not shown) is provided only for heating the solution. It is also possible.

Of course, the solution may be heated using high frequency, in which case a high frequency oscillator (not shown) such as a magnetron for microwave output is provided.

In addition, in the present invention, the pump 136 is driven so that the solution in the tank 132 is sprayed into the cavity 110 through the nozzle 134, the solution is coated on the inner wall of the cavity 110, and the sprayed solution Fixing the cavity 110 to the wall surface provides a cooking apparatus wall coating method comprising a.

Hereinafter, a preferred embodiment of the cooking apparatus wall coating method according to the present invention will be described.

Prior to the description, the configuration of the present embodiment will follow the configuration of the cooking appliance described above.

First, the pump 136 is operated by the input signal S1 (S2) so that the solution in the tank 132 is injected into the cavity 110 through the nozzle 134. (S3)

The solution sprayed inside the cavity 110 is applied to the inner wall of the cavity 110 while flowing down by gravity, and then, the heater is operated to heat the solution (S4), whereby the solution is applied to the cavity wall surface. To be fixed on the

Since the solution having super water repellency as described above is coated on the inner wall surface of the cavity 110, contaminants do not adhere to the cleaning property is very good.

Here, the input signal may be automatically controlled to be input at every predetermined use period of the cooking appliance.

The predetermined period of use may be every time the cooking appliance is used every time or every tens of times. Since it depends on the wear environment of the silicone oil, the heating time and heating temperature of the oven, or the type of food inside, it cannot be specified, and those skilled in the art will have no difficulty in constructing a control circuit and a program for this in the control unit.

In addition, the user is provided with a button, etc. to the user outside the cooking appliance, the user can perform the above steps when the user feels that the coating layer on the inner wall surface of the cavity 110 becomes thinner or poor cleanability The input signal may be applied by the operation of.

Of course, the wall coating of the cooking appliance as described above is preferably performed before cooking.

Therefore, according to the cooking apparatus and the wall coating method according to the present invention, since the inner wall surface of the cavity can be newly coated every time by a predetermined period or by a user's input, the cleaning property of the cavity inner wall surface is always the best state, such as a new product. Can be maintained.

Although the preferred embodiments of the invention have been described above, it will be apparent to those skilled in the art that the invention may be embodied in many other forms without departing from its spirit and scope.

Accordingly, the described embodiments are to be considered as illustrative and not restrictive, and all embodiments within the scope of the appended claims and their equivalents are included within the scope of the present invention.

As described above, the cooking apparatus of the present invention has the following effects.

First, since the inner wall surface of the cavity is coated with silicone oil having super water repellency, contaminants such as food waste or oil are not easily adhered, and the adhesion strength of the attached contaminants is also very small, which is easy to clean.

Secondly, since the inner wall of the cavity can be newly coated each time by a predetermined period or user input, the cleanability of the cavity inner wall can always be maintained in the best state as new.

Third, since the inside of the cavity always has the same super water-repellent property as a new product, the cleaning property does not deteriorate, so there is no need to heat the cavity to a high temperature, which saves energy and reduces the risk of heat deformation of fire and surrounding furniture. In addition, the safety of the user is also improved, and there is no need to form a thick insulating material for heat insulation, so it is easy to design and manufacture, thereby reducing the production cost, there is an effect that can also increase the internal volume.

Claims (10)

A body forming an outer appearance; A cavity forming a space for heating and cooking a cooking object; A spray apparatus for coating a cavity inner surface by spraying a solution having super water-repellency on the inner surface of the cavity; And a heating device for heating the coating layer formed by the solution sprayed on the inner surface of the cavity to be fixed to the wall surface. The method of claim 1, The solution is a cooking appliance, characterized in that the solution containing a silicone-based oil. The method of claim 1, The spray device, the tank for storing the solution; A nozzle for injecting a solution into the cavity inner surface; And a pump for transferring the solution of the tank to the nozzle. 3. The method of claim 2, The solution comprises a polymethylhydrogensiloxane (Polymethylhydrogensiloxane). The method of claim 1, The heating device is a cooking appliance, characterized in that the heater for heating the cavity when cooking. The method of claim 1, The heating device is a cooking device, characterized in that the high frequency oscillation device for heating the solution by emitting microwaves. A coating step of spraying the superhydrophobic solution into the cavity through the nozzle before cooking so that the superhydrophobic solution is coated on the inner wall of the cavity of the cooker; And a fixing step of fixing the sprayed water-repellent solution onto the cavity wall surface by heating the inside of the cavity with a heating device. The method of claim 7, wherein The super water-repellent solution is a cooking appliance wall coating method comprising a polymethylhydrogensiloxane (Polymethylhydrogensiloxane). The method of claim 7, wherein The coating step and the fixing step is a cooker wall coating method characterized in that it is automatically repeated according to a predetermined cooker use cycle. The method of claim 7, wherein The coating step and the fixing step is a cooking appliance wall coating method characterized in that is performed by receiving a user input.

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