KR102563519B1 - Cooking equipment - Google Patents

Abstract

The present invention includes a case defining a cooking space in which a subject to be observed is cooked; and an optical path conversion unit for converting an optical path of the light reflected from the object to be observed and providing the light to an upper portion of the case, so that food can be checked without bending the waist and knees.

Description

Cooking equipment { Cooking equipment}

The present invention relates to a cooking appliance, and more particularly, to a cooking appliance in which a user can comfortably observe the inside of the cooking appliance.

The cooking appliance is one of the home appliances for cooking food located in the kitchen space, and includes an indirect heating method of cooking food by applying heat to the space where food is placed and an indirect heating method of cooking food by applying heat to the food to be cooked. It is divided into direct heating method cooking equipment.

A typical cooking appliance among direct heating cooking appliances is a microwave oven, and a representative cooking appliance among indirect heating cooking appliances is an oven. The microwave oven is placed in a space for cooking food and then sprays high-frequency waves into a space where the food is placed so that the high-frequency waves directly heat the food to cook the food.

In addition, the oven heats the air in the space where the food is placed after placing it in a space for cooking the food, so that the food is cooked by the heated air.

And, when divided based on the installation form of cooking equipment, the built-in type is a type that is installed in the form of being stored inside kitchen furniture located in the kitchen space, and the stand type is a type that is placed on top of kitchen furniture or in a space desired by the user The wall-mounted type is a type that is installed in the form of a hood that is installed on the wall of the kitchen space and discharges polluted air generated in the kitchen space to the outside space at the same time.

When the early appliances are installed below the user's eye level, there is a problem in that the user has to bend his or her waist or bend the knee to view the food in the early space through the window of the door.

Korean Patent Publication No. 2009-0029652

An object to be solved by the present invention is to provide a cooking appliance that allows a user to observe the inside of a cooking appliance below the user's eye level without bending the user's waist or knees.

Another object of the present invention is to provide a cooking appliance capable of changing an optical path to provide an image suitable for each user's eye level in consideration of the user's eye level.

The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the cooking appliance according to an embodiment of the present invention includes an optical path conversion unit that converts an optical path of light reflected from the object to be observed and provides the optical path to an upper portion of the case.

The optical path conversion unit includes a square prism having an incident surface on which light emitted from the object to be observed is incident and an exit surface on which light incident through the incident surface is refracted and emitted, and the incident surface and the The exit faces may be arranged opposite to each other and not parallel.

A distance between the incident surface and the emission surface may increase in an upward direction.

Interior angles of corners of the quadrangular prism may be different from each other.

It may include a lower surface connecting a lower end of the incident surface and a lower end of the exit surface, and an upper surface connecting an upper end of the incident surface and an upper end of the exit surface.

A distance between the upper surface and the lower surface may decrease from front to rear.

The embodiment includes an upper coating layer covering the upper surface; and a lower coating layer covering the lower surface.

The lower surface may be disposed parallel to the bottom surface of the case.

An interior angle of a first corner where the upper surface and the exit surface meet is smaller than an interior angle of a second corner where the exit surface and the lower surface meet, and the second corner interior angle is a third corner interior angle where the upper surface and the incident surface meet. and the third corner interior angle may be smaller than the fourth corner interior angle where the incident surface and the lower surface meet.

Meanwhile, the optical path conversion unit has a first triangle having a first incident surface on which light emitted from the object to be observed is incident, and a first exit surface on which light incident through the first incident surface is refracted and emitted. prism; and a second triangular prism having a second incident surface into which light emitted through the first emission surface is incident, and a second incident surface into which light incident through the second incident surface is refracted and emitted. .

A length of the first exit surface and a length of the second incident surface may be the same.

The first exit surface and the second incident surface may contact each other.

A distance between the first incident surface and the second exit surface may increase in an upward direction.

Interior angles of corners of the first triangular prism may be different from each other, and interior angles of corners of the second triangular prism may be different from each other.

An upper end of the first exit surface and an upper end of the first incident surface may be connected to each other, and a lower end of the second exit surface and a lower end of the second incident surface may be connected to each other.

The embodiment includes a first lower surface connecting the lower end of the first exit surface and the lower end of the first incident surface, and a second upper surface connecting the upper end of the second exit surface and the upper end of the second incident surface. can include more.

The display device may further include a door opening and closing an opening formed on one surface of the case, and the optical path conversion unit may be installed in the door.

The light path changing unit may be installed adjacent to an upper end of the door.

The optical path conversion unit includes a first reflector that reflects light emitted from the object to be observed and a second reflector that is disposed above the first reflector and reflects the light emitted from the first reflector and provides the reflected light to the upper part. A reflector may be included.

The first reflector may have a first reflective surface inclined upward from a vertical surface, and the second reflector may have a second reflective surface inclined downward from the vertical surface.

The embodiment further includes a first window, a second window disposed in parallel with the first window and positioned rearward of the first window, wherein the first reflector and the second reflector are disposed in the first window and the second window. It may be located between the second windows.

The light path changing unit may further include a tilt unit tilting at least one of the first reflection surface and the second reflection surface.

The first reflector may be installed on a rear surface of the first window, and the second reflector may be installed on a front surface of the second window.

The first reflective surface may be formed by coating a part of the rear surface of the first window with a reflective material, and the second reflective surface may be formed by coating a part of the front surface of the second window with a reflective material.

Details of other embodiments are included in the detailed description and drawings.

According to the cooking appliance of the present invention, one or more of the following effects are provided.

First, since the present invention reflects or refracts light emitted from the inside of the cooking appliance and provides it at the user's eye level, there is an advantage in that the user can observe the inside of the cooking space without bending down.

Second, since the present invention uses a reflective coating for a prism or a window, there is an advantage in that manufacturing is simple and manufacturing cost is reduced.

Third, the present invention has the advantage of being able to provide an image inside the early device according to various eye levels of the user by tilting the optical path changing unit.

Fourth, in the present invention, the light path changing unit is not exposed to the outside of the window because the light path changing unit is built into the window or one surface is aligned with the window, so there is an advantage of not impairing the aesthetic impression given to the user.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a partially cut-away perspective view of a cooking appliance according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing an internal structure of the cooking appliance shown in FIG. 1 .
FIG. 3 is a cross-sectional view of an optical path changing unit shown in FIG. 1 according to an embodiment.
FIG. 4 is a diagram illustrating an optical path passing through the optical path changing unit shown in FIG. 3 .
FIG. 5 is a view showing an optical path passing through the cooking appliance shown in FIG. 1 .
6 is a diagram of an optical path conversion unit according to another embodiment of the present invention.
7 is a cross-sectional view of an optical path changing unit according to another embodiment of the present invention.
8 is a cross-sectional view showing an internal structure of a cooking appliance according to another embodiment of the present invention.
FIG. 9 is a diagram illustrating an optical path conversion unit according to still another embodiment shown in FIG. 8 .
FIG. 10 is a diagram showing an optical path by the optical path conversion unit shown in FIG. 9 .
11 is a diagram of an optical path conversion unit according to another embodiment of the present invention.
FIG. 12 is a diagram showing the operation of the optical path changing unit shown in FIG. 11;

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to completely inform the person who has the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification.

The spatially relative terms "below", "beneath", "lower", "above", "upper", etc. It can be used to easily describe components and their correlations with other components. Spatially relative terms should be understood as encompassing different orientations of elements in use or operation in addition to the orientations shown in the drawings. For example, if you flip a component shown in the drawing, a component described as "below" or "beneath" another component will be placed "above" the other component. can Thus, the exemplary term “below” may include directions of both below and above. Elements may also be oriented in other orientations, and thus spatially relative terms may be interpreted according to orientation.

Terminology used herein is for describing the embodiments and is not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. As used herein, "comprises" and/or "comprising" means that a stated component, step and/or operation excludes the presence or addition of one or more other components, steps and/or operations. I never do that.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used in a meaning commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless explicitly specifically defined.

In the drawings, the thickness or size of each component is exaggerated, omitted, or schematically illustrated for convenience and clarity of explanation. Also, the size and area of each component do not entirely reflect the actual size or area.

Hereinafter, with reference to the accompanying drawings, the preferred embodiments of the present invention are described as follows.

Hereinafter, the present invention will be described with reference to drawings for explaining a cooking appliance according to embodiments of the present invention.

FIG. 1 is a partially cut-away perspective view of a cooking appliance 100 according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing an internal structure of the cooking appliance 100 shown in FIG. 1 .

Referring to FIGS. 1 and 2 , the cooking appliance 100 of the present invention may include a case 80 and optical path conversion units 200, 200A, 300, and 400.

In the present invention, the cooking device 100 includes all devices capable of cooking food. The device may include any device that heats by burning fuel or heats by converting electrical energy. For example, various appliances such as a microwave oven and an oven may be selected as the cooking appliance 100 .

For example, the cooking appliance 100 includes a case 80 and an external housing 90 .

The case 80 defines a cooking space 10 where objects to be observed (food) are cooked. Specifically, an opening may be formed on the front surface of the case 80 . The opening may be opened and closed by a door 70 to be described later. A light source 99 is positioned inside the case 80 .

The outer housing 90 includes a space in which the case 80 is disposed, an electrical compartment 54 disposed above the cooking space 10, a rear air circulation path 91 of the case 80, and a lower air circulation path ( 92).

A door 70 is disposed in the outer housing 90 to open and close the cooking space 10 . The door 70 is hinged to the outer housing 90, and opens and closes the cooking space 10 (the front opening of the case 80) while rotating back and forth around the hinged portion.

The door 70 includes a plurality of plate materials, and the plurality of plate materials are spaced apart from each other to form the cooling air passage 76 inside the door 70 . In addition, the door 70 may be provided with windows 71 and 72 through which light is transmitted to view the cooking space from the outside.

The windows 71 and 72 may define the cooling air passage 76 by being spaced apart from each other. Specifically, as shown in FIG. 2, the door 70 is disposed parallel to the first window 71 and the first window 71, and the second window 72 positioned rearward than the first window 71. ) may be included. Here, the first window 71 and the second window 72 are made of a transparent material.

Heaters 65 capable of increasing the temperature of the cooking space 10 are respectively disposed at the top, bottom, and rear of the cooking space 10 . In addition, a cooking chamber fan 67 is disposed at the rear of the cooking space 10 . The cooking chamber fan 67 sucks in the air inside the cooking space 10, heats it with a heater 65 installed at the rear of the cooking space 10, and then discharges the heated air back into the cooking space 10.

A blower module 60 is disposed in the electrical compartment 54 . The blower module 60 includes a fan 62 forcibly flowing air in the rear air distribution passage 91 and a motor 64 for driving the fan 62 .

The control room duct 66 connected to the outlet of the blower module 60 is disposed in the control room 54 . The control room duct valve 66a for opening and closing the control room duct 66 is disposed in the control room duct 66 . A first communication portion 81 is formed in the case 80 . To open and close the first communication unit 81, a first communication unit valve 81a is disposed in the first communication unit 81.

In addition, a second communication portion 82 is formed in the case 80 . The second communication unit 82 connects the cooking space 10 and the control room duct 66, but is located downstream of the control room duct 66 rather than the first communication unit 81. To open and close the second communication unit 82, a second communication unit valve 82a is disposed in the second communication unit 82.

The blower module 60 performs a function of sucking outside air into the electrical compartment 54, cooling the electrical compartment 54, and then discharging it to the outside. The air discharged to the outside from the control room duct 66 is discharged between the upper surface of the door 70 and the front plate 51 of the outer housing 90. However, air introduced into the blower module 60 may be introduced into the cooking space 10 through the second communication unit 82 .

The cooking appliance 100 includes a deodorizing device 30 . The odor removal device 30 is disposed in the first communication unit 81 and functions to remove odorous substances generated from the cooking space 10 . However, the disposition position of the odor removal device 30 is not limited to the above, and may be disposed at a position where odorous substances may be introduced from the cooking space 10 .

Recently, cooking appliances 100 are installed as built-ins in homes, and most of the cooking appliances 100 installed as built-ins are installed under a sink. In order for the user to view the food in the early space through the windows 71 and 72 of the door 70, there is inconvenience that the user has to bend his/her waist or bend his/her knees.

In order to solve the above problems, the present invention adopts optical path conversion units (200, 200A, 300, 400) for converting the optical path of the light reflected from the object to be observed and providing it to the upper portion of the case 80. did

The optical path conversion units 200, 200A, 300, and 400 may include a device that provides an image of an object to be observed located on the floor of the cooking space above the case 80 so that the user can visually recognize it. there is.

For example, the optical path conversion units 200, 200A, 300, and 400 may include a square prism 200. The square prism 200 may be selected from various materials having a refractive index greater than 1. Preferably, the square prism 200 may have a refractive index of 1.4 to 2.

2 and 3, the square prism 200 has an incident surface 201 on which light emitted from an object to be observed is incident, and an exit surface 203 on which light incident through the incident surface 201 is refracted and emitted. ), the lower surface 202 connecting the lower end of the incident surface 201 and the lower end of the exit surface 203, and the upper surface 204 connecting the upper end of the incident surface 201 and the upper end of the exit surface 203. ) may be included.

Hereinafter, directions and angles to be mentioned will be described based on FIG. 3 cut along a vertical plane.

The incident surface 201 is a surface on which light emitted from an object to be observed is incident. The incident surface 201 is located behind the emission surface 203 and is located close to the object to be observed. Light entering the inside of the square prism 200 through the incident surface 201 is refracted by the refractive index of the square prism 200 and proceeds.

The exit surface 203 is a surface on which light incident through the incident surface 201 is refracted and emitted. Light entering the inside of the square prism 200 through the incident surface 201 is refracted by the refractive index of the square prism 200 and emitted to the outside. The surface emitted through the emission surface 203 is refracted upward, so that the user can observe the inside of the cooking space without bending down.

The incident surface 201 and the exit surface 203 may face each other and be disposed not in parallel. Specifically, the distance between the incident surface 201 and the exit surface 203 may increase in an upward direction. Accordingly, light incident on the square prism 200 from the lower side is emitted upward.

More specifically, the exit surface 203 may be arranged in parallel with the vertical direction, in parallel with the frame of the door 70, or in parallel with the windows 71 and 72. When the exit surface 203 is disposed parallel to the door 70 or the windows 71 and 72, when the square prism 200 is installed on the windows 71 and 72 or the door 70, the door 70 Since it is installed in unity with the front surface of the square prism 200 may not be exposed to the outside.

The lower surface 202 is a surface connecting the lower end of the incident surface 201 and the lower end of the exit surface 203 . The lower surface 202 may be arranged parallel to a horizontal surface or parallel to the bottom surface of the case 80 . When the lower surface 202 and the exit surface 203 are installed on the door 70 or the windows 71 and 72, there is an advantage in that alignment can be performed by the lower surface 202 and the exit surface 203. .

The top surface 204 is a surface connecting the upper end of the incident surface 201 and the upper end of the exit surface 203 . The distance between the upper surface 204 and the lower surface 202 may decrease from front to rear.

Interior angles of corners of the quadrangular prism 200 may be different from each other. Specifically, the first corner interior angle 211 where the upper surface 204 and the exit surface 203 meet is smaller than the second corner interior angle 212 where the exit surface 203 and the lower surface 202 meet, and the second corner The interior angle 212 is smaller than the third corner interior angle 213 where the upper surface 204 and the incident surface 201 meet, and the third corner interior angle 213 is the third corner interior angle 213 where the incident surface 201 and the lower surface 202 meet. It may be smaller than the four-corner interior angle 214 .

More specifically, the first corner interior angle 211 may be an acute angle, and the interior angles of the third and fourth corners may be obtuse angles. An interior angle of the second corner may be 85° to 95°. Preferably, an interior angle of the second corner may be a right angle.

The entrance face 201, the exit face 203, the upper face 204, and the lower face 202 may have different lengths. The length of the entrance face 201 is less than the length of the lower face 202, the length of the lower face 202 is less than the length of the exit face 203, and the length of the exit face 203 is equal to the length of the upper face 204. length may be less than

Of course, the incident surface 201, the exit surface 203, the upper surface 204, and the lower surface 202 are preferably flat, but may include curved surfaces. If each face is a curved surface, the interior angle is based on the line connecting both ends of each face.

To prevent afterimages, an upper coating layer 221 covering the upper surface 204 and a lower coating layer 223 covering the lower surface 202 may be formed.

The top coating layer 221 is disposed on top of the top surface 204 and covers the entire top surface 204 . The lower coating layer 223 is disposed under the lower surface 202 and covers the entire lower surface 202 .

The upper coating layer 221 and the lower coating layer 223 may be made of a material that blocks light. For example, materials that are dark or close to black or nano-carbon tubes that confine light can be used.

The installation position of the optical path changing units 200, 200A, 300, and 400 is not limited, but it is preferable to install them in the windows 71 and 72. More preferably, in order to prevent the user from bending the waist and knees as much as possible, the optical path conversion units 200, 200A, 300, and 400 are installed at or adjacent to the top of the windows 71 and 72, or installed on the door ( 70) may be installed at the top or adjacent to the top.

FIG. 4 is a view showing an optical path passing through the optical path conversion units 200, 200A, 300, and 400 shown in FIG. 3, and FIG. 5 is a view showing an optical path passing through the cooking appliance 100 shown in FIG. It is an illustrated drawing.

When light is incident on an object to be observed located on the lower surface of the cooking space, the light reflected from the object to be observed is incident through the incident surface 201 and refracted. Light incident through the incident surface 201 is emitted through the emission surface 203 and is refracted upward. The light emitted upward through the emitting surface 203 is provided at the user's eye level, allowing the user to see the inside of the early space without bending the waist and knees.

6 is a diagram of optical path conversion units 200, 200A, 300, and 400 according to another embodiment of the present invention.

Referring to FIG. 6 , optical path conversion units 200, 200A, 300, and 400 according to other embodiments differ from the embodiments of FIGS. 2 and 3 in that the quadrangular prism 200 can be rotated. exist. Hereinafter, differences from the embodiment of FIGS. 2 and 3 will be mainly described, and configurations without special description are considered to be the same as the embodiment of FIG. 3 .

The light path conversion units 200, 200A, 300, and 400 of another embodiment may include a square prism 200, a rotation protrusion 231 on which the square prism 200 is rotatably installed, and a handle 232. .

The rotating protrusion 231 is installed at both ends in the left and right directions of the square prism 200 and extends in a direction parallel to the horizontal plane. The quadrangular prism 200 is rotated on the basis of an axis parallel to the left and right directions by the rotation protrusion 231 .

The rotating protrusion 231 is installed on the door 70 and is rotated. The handle 232 is connected to the rotating protrusion 231 to transmit the user's external force to the rotating protrusion 231 . The handle 232 may have a larger outer diameter than the rotating protrusion 231 .

Since the square prism 200 is rotated in the horizontal direction by the handle 232, it is possible to provide an image of food according to the user's height.

7 is a cross-sectional view of optical path conversion units 200, 200A, 300, and 400 according to another embodiment of the present invention.

Referring to FIG. 7 , optical path conversion units 200, 200A, 300, and 400 according to another embodiment, compared to the embodiments of FIGS. 2 and 3, the quadrangular prism 200 is a triangular prism 200A 2 There is a difference that is replaced by a dog.

For example, the optical path conversion units 200, 200A, 300, and 400 include a first triangular prism 230 and a second triangular prism 240. The first triangular prism 230 and the second triangular prism 240 are coupled to form one square prism 200 shown in FIG. 3 . Specifically, the first triangular prism 230 and the second triangular prism 240 may have one surface having the same shape and may be disposed to contact each other.

The first triangular prism 230 includes a first incident surface 231 into which light emitted from an object to be observed is incident, and a first emission surface 233 into which light incident through the first incident surface 231 is refracted and emitted. ), and a first lower surface 232 connecting the lower end of the first exit surface 233 and the lower end of the first incident surface 231 .

The upper end of the first exit surface 233 and the upper end of the first incident surface 231 are connected to each other. The first lower surface 232 may be arranged parallel to a horizontal surface or parallel to the bottom surface of the case 80 . When the first lower surface 232 and the second exit surface 242 are installed on the door 70 or the windows 71 and 72, alignment is achieved by the lower surface 202 and the second exit surface 242. There are benefits you can do.

Interior angles of respective corners of the first triangular prism 230 are different from each other. Specifically, the interior angle of the fifth corner 234 and the interior angle of the seventh corner 236 may be an acute angle, and the interior angle of the sixth corner 235 may be an obtuse angle.

The second triangular prism 240 includes a second incident surface 241 into which light emitted through the first exit surface 233 is incident, and a second incident surface 241 into which light incident through the second incident surface 241 is refracted and emitted. It includes two exit surfaces 242 and a second upper surface 243 connecting the upper end of the second exit surface 242 and the upper end of the second incident surface 241 . The lower end of the second exit surface 242 and the lower end of the second incident surface 241 are connected to each other.

The first incident surface 231 and the second exit surface 242 may face each other and be disposed not in parallel. Specifically, the distance between the first incident surface 231 and the second exit surface 242 may increase in an upward direction. Accordingly, light incident from the lower side of the two triangular prisms 200A is emitted upward.

More specifically, the second exit surface 242 may be arranged in parallel with the vertical direction, in parallel with the frame of the door 70 , or in parallel with the windows 71 and 72 . When the exit surface 203 is disposed parallel to the door 70 or the windows 71 and 72, when the square prism 200 is installed on the windows 71 and 72 or the door 70, the door 70 Since it is installed to be integral with the front surface of the, the triangular prism (200A) may not be exposed to the outside.

Interior angles of the corners of the second triangular prism 240 are different from each other. Specifically, the interior angle of the eighth corner, the interior angle of the ninth corner, and the interior angle of the tenth corner may be acute angles. More preferably, each interior angle of the first triangular prism 230 may be different from each interior angle of the second triangular prism 240 .

The first exit surface 233 and the second incident surface 241 contact each other, and the length of the first exit surface 233 and the second incident surface 241 may be the same. The width and shape of the first exit surface 233 may be the same as those of the second incident surface 241 .

8 is a cross-sectional view showing the internal structure of a cooking appliance 100 according to another embodiment of the present invention, and FIG. 9 is a view showing an optical path conversion unit 300 according to another embodiment shown in FIG. 8 .

Referring to FIGS. 8 and 9 , the cooking appliance 100 according to another embodiment has a difference in the configuration of the light path changing unit 300 compared to the cooking appliance 100 of FIG. 2 .

The light path conversion unit 300 according to another embodiment reflects the light emitted from the object to be observed, is disposed above the first reflector 310 and the first reflector 310, and emits light from the first reflector 310. It includes a second reflector 320 that reflects the reflected light and provides it to the upper part. A plurality of first reflectors 310 and second reflectors 320 may be disposed as a pair.

The first reflector 310 may have a first reflection surface 311 inclined upward in a vertical plane. The first reflective surface 311 may form a surface facing upward and backward from a vertical surface. The inclination angle θ11 of the first reflection surface 311 may range from 2° to 15°.

The first reflector 310 may be positioned between the first window 71 and the second window 72 . Therefore, there is an advantage in that the first reflector 310 is not exposed to the outside, so there is no fear of damage, and a beautiful and elegant exterior is provided.

The first reflector 310 may be formed separately from the windows 71 and 72 and installed on the rear surface of the first window 71 . As another example, the first reflective surface 311 may be formed by coating a reflective material on a part of the rear surface of the first window 71 .

The second reflector 320 may have a second reflector 321 inclined downward in a vertical plane. The second reflective surface 321 may form a surface that looks downward and forward from a vertical surface. The inclination angle θ12 of the second reflection surface 321 may range from 2° to 15°.

The second reflector 320 may be positioned between the second window 72 and the second window 72 . Therefore, there is an advantage in that the second reflector 320 is not exposed to the outside, so there is no fear of damage, and a beautiful and elegant exterior is provided.

The second reflector 320 may be formed separately from the windows 71 and 72 and installed on the front surface of the second window 72 . As another example, the second reflective surface 321 may be formed by coating a reflective material on a portion of the front surface of the second window 72 . The first reflective surface 311 and the second reflective surface 321 may include a flat surface or a curved surface.

The first reflector 310 and the second reflector 320 may have a separation distance D1 in the vertical direction. Light traveling horizontally between the first reflector 310 and the second reflector 320 is emitted so that the inside of the cooking appliance 100 can be seen from the front of the early appliance.

FIG. 10 is a diagram showing an optical path by the optical path conversion unit 300 shown in FIG. 9 .

Referring to FIG. 10 , the light emitted from the object to be observed is reflected by the first reflector 420 and provided to the second reflector 410, and the light incident on the second reflector 410 is reflected to the second reflector ( 410) is provided above. Of course, the image may be more clear or enlarged by using a plurality of first reflectors 420 and second reflectors 410 .

11 is a diagram of an optical path conversion unit 300 according to another embodiment of the present invention.

Referring to FIG. 11 , compared to the optical path conversion unit 300 of FIG. 9 according to another embodiment, a tilt unit is further included, and there is a difference in the configuration of each reflector.

At least one of the first reflector 420 and the second reflector 410 is rotatably hinged to the windows 71 and 72 .

The tilt unit tilts one of the first reflector 420 and the second reflector 410 . The tilt unit tilts at least one of the first reflective surface 311 and the second reflective surface 321 . Specifically, the tilt unit may rotate the first reflector 420 in a left-right direction as an axis.

For example, the tilt unit includes a first link 430 connected to the first reflectors 420 and movably installed in the first window 71 to move up and down, the first link 430 and one surface and a gear A coupled pinion gear 460 may be included. A rack is formed on one surface of the first link 430, and the first link 430 is moved up and down by rotation of the pinion gear 460. The first link 430 is hinged at a position away from the center of the first reflectors 420 .

In another example, the tilt unit includes a second link 440 disposed to face the first link 430 and a connecting link 450 hinged to the first link 430 and the second link 440. can include One end of the second link 440 may be fixed to the second window 72 .

FIG. 12 is a diagram showing the operation of the optical path changing unit 300 shown in FIG. 11 .

Referring to FIG. 12 , when the pinion gear 460 is rotated, the first link 430 is moved up and down, and when the first link 430 is moved up and down, the first reflector 420 is tilted. At this time, the second link 440 and the connection link guide the movement of the first link 430.

Although the preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the specific embodiments described above, and in the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. Various modifications and implementations are possible by those skilled in the art, and these modifications should not be individually understood from the technical spirit or perspective of the present invention.

Claims (24)

delete delete delete delete delete delete delete delete delete A case defining a cooking space where an object to be observed is cooked; and
An optical path conversion unit converting an optical path of the light reflected from the object to be observed and providing the light to an upper portion of the upper portion of the case;
The optical path conversion unit,
a first triangular prism having a first incident surface on which light emitted from the object to be observed is incident, and a first exit surface on which light incident through the first incident surface is refracted and emitted; and
A cooking appliance comprising a second triangular prism having a second incident surface on which light emitted through the first exit surface is incident, and a second exit surface on which light incident through the second incident surface is refracted and emitted. According to claim 10,
A length of the first exit surface and a length of the second incident surface are the same. According to claim 10,
The first exit surface and the second entrance surface are in contact with each other.
According to claim 10,
A distance between the first incident surface and the second exit surface increases in an upward direction. According to claim 10,
Interior angles of corners of the first triangular prism are different from each other, and interior angles of corners of the second triangular prism are different from each other. According to claim 10,
An upper end of the first exit surface and an upper end of the first incident surface are connected to each other, and a lower end of the second exit surface and a lower end of the second incident surface are connected to each other. According to claim 10,
a first lower surface connecting a lower end of the first exit surface and a lower end of the first incident surface;
The cooking appliance further comprises a second upper surface connecting an upper end of the second exit surface and an upper end of the second incident surface. According to claim 10,
Further comprising a door for opening and closing an opening formed on one side of the case,
The light path conversion unit is installed in the door of the cooking appliance. According to claim 17,
The optical path conversion unit is installed adjacent to an upper end of the door. delete delete delete delete delete delete