CN117882493A - Cooking apparatus - Google Patents

Abstract

The present invention relates to a cooking apparatus having a heater capable of moving up and down inside a cooking chamber. The cooking apparatus of the present invention includes: a housing having a cooking chamber formed therein; a door rotatably provided at one side of the housing to open and close the cooking chamber; the heater is arranged on one side of the shell and generates hot air; and a traveling heater system provided on one side of the housing, capable of traveling the heater inside the cooking chamber; including a sensing function of sensing whether the heater is in contact with food inside the cooking chamber or has a prescribed distance and a function of sensing the restoration of the home position of the heater. According to the cooking apparatus as described above, there are advantages in that cooking efficiency is improved and malfunction or damage of parts is prevented.

Description

Cooking apparatus

Technical Field

The present invention relates to a cooking apparatus having a heater capable of moving up and down inside a cooking chamber.

Background

The cooking apparatus is an apparatus for cooking food accommodated inside using heat of a heater as a heating source.

Also, in general, the cooking apparatus is constituted of: a body having a cooking chamber as a space for accommodating food; more than one heater arranged on the body; and a door rotatably coupled to the body to open and close the front surface of the cooking chamber.

In recent years, in order to enhance the utility of such a cooking apparatus, a steam generating device described in korean patent laid-open No. 10-2018-012637 is also attached.

In addition, in the food thawing device disclosed in U.S. patent No. 4303820, a pair of flat electrodes defining a food thawing area are provided, one of the electrodes being configured to be movable so as to be insertable into a frozen food bar. Also, for smooth heating (thawing), a relatively low power consumption power supply provides uniform energy to the entire food load.

In the apparatus and method disclosed in U.S. patent No. 8258440 for reheating packages of refrigerated or frozen food products, an apparatus and method for reheating packages of refrigerated or frozen food products is disclosed. And, the heating mechanism is in conductive thermal contact with the food package, heats the food to a reheat temperature, and operates for a reheat time to reheat the food package, and then maintains the reheat temperature as desired.

However, although a link type lifting system and the like are also disclosed in such a conventional cooking apparatus, the heater cannot be accurately lifted and lowered due to a structure in which the heater descends by its own weight to defrost food or the like, and there is a problem in that collision with food inside the cooking apparatus or in-situ control of the heater is prevented. Therefore, electromagnetic wave leakage inside the cooking apparatus, safety accidents, and malfunctions caused by damage of the products may occur.

Disclosure of Invention

Problems to be solved by the invention

Accordingly, an object of the present invention is to solve the problems of the related art as described above, and to provide a cooking apparatus in which a heater is artificially moved up and down inside a cooking chamber.

Further, it is an object of the present invention to provide a cooking apparatus that effectively shields electromagnetic waves passing around a rising and falling heater system.

Further, an object of the present invention is to provide a cooking apparatus that mechanically senses interference of a rising and falling heater with food.

Technical proposal for solving the problems

According to a feature of the present invention for achieving the object as described above, a cooking apparatus of the present invention is provided with a heater that moves inside a cooking chamber. Therefore, the heater is brought close to the food, so that cooking can be performed.

In the present invention, a system capable of allowing a heater to swim inside a cooking chamber is provided in a cooking apparatus.

In the present invention, there is a sensing function of sensing whether the heater is in contact with food or in proximity to food.

In the present invention, there is a function of controlling the running heater to be restored to the original position or sensing whether to be restored to the accurate position.

Further, the cooking apparatus of the present invention is characterized by comprising: a housing having a cooking chamber formed therein; a door rotatably provided at one side of the housing to open and close the cooking chamber; a swimming heater system having a heater generating hot air, capable of swimming the heater inside a cooking chamber; a contact sensing device sensing whether the heater is in contact with food inside the cooking chamber or has a prescribed distance; and a home position sensing device sensing a home position restoration of the heater.

In addition, the cooking apparatus of the present invention is characterized by comprising: a housing having a cooking chamber formed therein; a door for opening and closing the cooking chamber; and a traveling heater system provided on one side of the housing, capable of traveling the heater inside the cooking chamber.

The cooking apparatus of the present invention is characterized by comprising: a housing having a cooking chamber formed therein; a door for opening and closing the cooking chamber; a moving assembly provided to be capable of moving up and down inside the cooking chamber, and having a heater; and a contact sensing device sensing whether the moving assembly is in contact with an object inside the cooking chamber when the moving assembly is lowered.

The cooking apparatus of the present invention is characterized by comprising: a housing having a cooking chamber formed therein; a door for opening and closing the cooking chamber; a heater generating hot gas; a swimming heater system capable of swimming the heater inside a cooking chamber; and a home position sensing device sensing whether the heater is located at a home position.

Characterized in that the free-standing heater system comprises: a moving assembly, which is provided with the heater and protects the heater; the fixed assembly is arranged on one side of the shell and used for controlling the moving assembly to move up and down; and a link assembly disposed at one side of the moving assembly such that the moving assembly can be coupled to the fixed assembly in a swimming manner.

The fixed assembly is characterized by comprising a movement control device, wherein the movement control device is controlled by the connecting rod assembly to restrict the upward and downward movement of the moving assembly.

Characterized in that the movement control device comprises: a motor for generating rotational power; a lead screw provided at one side of the motor and rotated in association with rotation generated by the motor; and a guide nut fastened to the lead screw by screw coupling.

Is characterized in that a coupler is also arranged between the motor and the lead screw, and the coupler is connected with one end of the lead screw and the motor shaft.

Is characterized in that the motor is arranged on a fixed bracket, the fixed bracket is fixedly arranged on the fixed assembly, and the guide nut is arranged on a floating bracket which can be movably arranged on the fixed assembly.

Characterized in that a slide rail is provided in the fixed unit to support the traveling bracket so as to be slidable.

Characterized in that the fixing assembly comprises: an upper plate forming a top surface of the cooking chamber; the protective cover is arranged on the upper plate and used for blocking electromagnetic waves from passing through a gap between the movable assembly and the fixed assembly; and a fixed frame disposed on the upper side of the upper plate and supporting the movement control device.

Characterized in that the fixed frame is arranged at the upper side of the upper plate by a fixed guide piece and is separated from the upper plate.

Characterized in that a gap of a prescribed size is formed between the fixed frame and the protective cover.

The sliding guide rail is fixedly arranged on the top surface of the fixed frame, and a sliding member supporting the floating bracket is slidably arranged on the sliding guide rail.

Characterized in that a plurality of guide members for guiding the upward and downward movement of the moving assembly are provided on the protective cover.

Characterized in that the mobile assembly comprises: a heater cover surrounding and protecting the heater; and an insulating member provided at one end of the heater housing to block heat or electromagnetic waves.

Characterized in that the heater cover is formed in a square box shape, and more than one heater holes through which the hot air of the heater can pass are formed in the bottom surface.

Is characterized in that the heater cover body moves up and down through the gap between the fixed frame and the protective cover.

Characterized in that the connecting rod assembly comprises more than one connecting rod, the upper end of the connecting rod assembly can be rotatably connected with the fixed assembly, and the lower end of the connecting rod assembly can be rotatably connected with the moving assembly.

Characterized in that the link assembly includes a pair of front links and a pair of rear links disposed at a prescribed distance in front and rear.

Is characterized in that the lower ends of the front connecting rod and the rear connecting rod are also provided with a connecting rod frame combined with the moving assembly.

Characterized in that at least one of the left and right lower ends of the front link and the rear link is movable in a state of being coupled to the link frame.

Is characterized in that one side of the fixed component is provided with a home position sensing device and a contact sensing device, the home position sensing device senses the home position of the movable component, and the contact sensing device senses whether the lower end of the movable component is in contact with food in the cooking chamber.

Effects of the invention

The cooking apparatus of the present invention has the following effects.

First, in the cooking apparatus according to the present invention, the heater can be moved up and down in the cooking chamber. Accordingly, the heater can be brought close to food inside the cooking chamber and cooking can be performed, thus having advantages in that heat loss is minimized and cooking time of the food can be shortened.

Second, in the present invention, an elastic coupling is provided between the motor and the lead screw. Therefore, there is an advantage in that power loss due to concentricity error between the motor shaft and the lead screw is reduced and transmission of rotational force is facilitated.

Third, in the present invention, there is a guide member to guide up and down movement of the moving assembly. That is, there are a plurality of roller-type guide members to control up-and-down movement of the moving assembly. Therefore, interference of the heater cover, the protective cover and the fixing frame is prevented when the moving assembly mounted with the heater moves up and down, thereby having effects of preventing damage of components and generating noise.

Fourth, in the present invention, an insulating member is provided to the moving assembly, shielding a gap between the moving assembly and a housing of the cooking apparatus. Therefore, there is an advantage in that electromagnetic waves are prevented from leaking through a gap between the moving assembly and the housing.

Fifth, in the present invention, an edge of the insulating member provided to the moving assembly is overlapped with the upper plate forming the top surface of the cooking chamber. Therefore, when the moving assembly is located at the home position while being lifted up inside the cooking chamber, there is an advantage in that electromagnetic waves inside the cooking chamber are blocked from leaking to the outside.

Sixth, in the present invention, there is a protection switch for sensing whether the moving assembly interferes with food when it descends. Accordingly, in case that the food and the moving assembly are in contact, the descent of the moving assembly is stopped, thereby having an advantage of preventing the damage of the food and the parts.

Drawings

Fig. 1 is a perspective view showing an internal configuration of a state in which an external cover is removed in a preferred embodiment of the cooking apparatus of the present invention.

Fig. 2 is a perspective view showing the constitution of a traveling heater system constituting an embodiment of the present invention.

Fig. 3 is an exploded perspective view showing the constitution of a traveling heater system constituting an embodiment of the present invention.

Fig. 4 is a top view of the traveling heater system shown in fig. 2.

Fig. 5 is a front view of the traveling heater system shown in fig. 2.

Fig. 6 is a side view of the traveling heater system shown in fig. 2.

Fig. 7 is a front cross-sectional view of the traveling heater system shown in fig. 2.

Fig. 8 is a perspective view showing a state in which a heater is lowered in the traveling heater system shown in fig. 2.

Fig. 9 is a top view of the traveling heater system shown in fig. 8.

Fig. 10 is a front view of the traveling heater system shown in fig. 8.

Fig. 11 is a side view of the traveling heater system shown in fig. 8.

Fig. 12 is an exploded perspective view showing the constitution of a fixing assembly constituting a traveling heater system of the cooking apparatus of the present invention.

Fig. 13 is an exploded perspective view showing the construction of a moving assembly constituting a traveling heater system of the cooking apparatus of the present invention.

Fig. 14 is an exploded perspective view showing the constitution of a link assembly constituting a traveling heater system of the cooking apparatus of the present invention.

Fig. 15 is an exploded perspective view showing the constitution of the upper plate 310, the protective cover 320, and the fixing frame 330 constituting the embodiment of the present invention.

Fig. 16 is a perspective view showing the configuration of a guide member constituting an embodiment of the present invention.

Fig. 17 is an exploded perspective view showing the configuration of a movement control device constituting an embodiment of the present invention.

Fig. 18 is a perspective view showing the constitution of a fixing bracket constituting an embodiment of the present invention.

Fig. 19 is a perspective view showing the configuration of the traveling bracket constituting the embodiment of the present invention.

Fig. 20 is a perspective view showing the constitution of a protective bracket constituting an embodiment of the present invention.

Fig. 21 is a perspective view showing the configuration of a position bracket constituting an embodiment of the present invention.

Fig. 22 is an exploded perspective view showing the constitution of a heater cover and an insulating member constituting an embodiment of the present invention.

Fig. 23 is a perspective view showing the constitution of the support end constituting the moving assembly of the embodiment of the present invention.

Fig. 24 is an exploded perspective view showing a main constitution of a link assembly constituting an embodiment of the present invention.

Detailed Description

Hereinafter, the cooking apparatus of the present invention will be described in detail with reference to the accompanying drawings. The cooking apparatus of the present invention may be a food cooking machine of various forms such as an induction cooker or an electric oven.

Fig. 1 is a perspective view showing an embodiment of the cooking apparatus of the present invention. That is, fig. 1 is a main configuration of the inside of the cooking apparatus in a state in which the outer cover is removed in order to explain the cooking apparatus of the present invention in a perspective view.

As shown in the drawings, the cooking apparatus of the present invention is composed of: a housing 10 having a cooking chamber 12 formed therein; and a door 20 provided at one side of the housing 10 to open and close the cooking chamber 12.

The housing 10 serves as a body of the cooking apparatus, and as shown, may be formed in a quadrangular box shape, preferably opened at the front to receive or draw out food.

As described above, if the front of the housing 10 is opened, a door 20 for shielding when food is cooked is provided, and such a door 20 may be provided to be rotatable about a hinge so as to be openable and closable.

In the present invention, as shown in the drawing, the door 20 is rotatably provided centering on a hinge at the lower end.

A front frame 14 is provided on the front surface of the housing 10 to form the front appearance of the housing 10, and various display units (not shown) and decorative plates may be provided.

A support plate 30 supporting food or a container may be provided inside the cooking chamber 12, and such support plate 30 may be rotatably provided.

As shown, a traveling heater system 100 is provided on the upper side of the housing 10. The traveling heater system 100 is a system in which a heater (heater) travels up and down inside the cooking chamber 12.

A heater (heater) generating hot air may be provided at an upper side of the housing 10, and such heater (heater) may have two or more. That is, the traveling heater system 100 may be provided with a heater (heater) which can travel up and down the cooking chamber 12, and the housing 10 may be provided with a heater (heater) in addition to the traveling heater system 100.

Also, the cooking apparatus of the present invention may have a sensing function of sensing whether the heater (heater) of the swimming heater system 100 is in contact with food inside the cooking chamber 12 or has a prescribed distance and a function of sensing the home position restoration of the heater (heater) of the swimming heater system 100.

The traveling heater system 100 and various functions described above are described in detail below.

Fig. 2 to 14 show the configuration of the traveling heater system 100. That is, fig. 2 and 3 show a perspective view and an exploded perspective view showing the configuration of the traveling heater system 100, and fig. 4 to 7 show a top view, a front view, a side view, and a front cross-sectional view of the traveling heater system 100, respectively. Fig. 8 is a perspective view showing the configuration of the traveling heater system 100 in a state where the internal heater is lowered, and fig. 9 to 11 are a plan view, a front view, and a side view of the traveling heater system 100 shown in fig. 8, respectively. Fig. 12 to 14 are exploded perspective views showing a fixed assembly, a movable assembly, and a link assembly constituting the traveling heater system 100.

As shown, a heater 210 generating hot gas may be provided at the swimming heater system 100, and such heater 210 may be provided to be capable of swimming up and down inside the cooking chamber 12.

In addition, the housing 10 or the traveling heater system 100 may have a sensing function of sensing whether the heater 210 is in contact with food inside the cooking chamber 12 or has a prescribed distance and a function of sensing the restoration of the home position of the heater 210.

The traveling heater system 100 may be constituted by: a moving assembly 200 mounted with and protecting the heater 210; a fixed assembly 300 disposed at one side of the housing 10 for controlling the up-down movement of the moving assembly 200; and a link assembly 400 provided at one side of the moving assembly 200 such that the moving assembly 200 is movably coupled to the fixed assembly 300.

The moving unit 200 is provided so as to be separated from the casing 10, so as to be movable up and down in the cooking chamber 12, and is configured to surround at least the side of the heater 210, and preferably configured to concentrate hot air of the heater 210 downward, not to spread sideways, and the like.

The fixing unit 300 is fixedly installed at the upper side of the housing 10, thereby supporting the moving unit 200 such that the moving unit 200 moves in the up-down direction in a state of being supported at the top surface of the housing 10.

Accordingly, a movement control device 500 is provided to the stationary assembly 300, and the movement control device 500 restrains the moving assembly 200 so that the moving assembly 200 moves up and down under the control of the link assembly 400.

The link assembly 400 may be provided at an upper side of the moving assembly 200, etc., and includes one or more links (links) to guide the moving assembly 200 to move up and down in a state of being connected to the fixed assembly 300.

The upper and lower ends of the link assembly 400 may be rotatably connected to the fixed assembly 300 and the moving assembly 200, respectively.

The fixing assembly 300 may be composed of: an upper plate 310 forming a top surface of the cooking chamber 12; a protective cover 320 disposed on the upper plate 310 to block electromagnetic waves passing through a gap between the moving assembly 200 and the fixed assembly 300; and a fixing frame 330 provided on the upper side of the upper plate 310 and supporting the movement control device 500.

The upper plate 310 is formed in a quadrangular plate shape having a prescribed thickness, and may form the top surface of the cooking chamber 12. The central portion of the upper plate 310 may be vertically penetrated to provide a passage through which the moving assembly 200 moves vertically.

The fixing frame 330 may be disposed spaced apart from the protective cover 320.

More specifically, the protective cover 320 may have a quadrangular shape as a whole, like the upper plate 310, and a hole (hole) penetrating up and down may be formed in a central portion of the protective cover 320, like the upper plate 310, and may have a quadrangular frame shape. Thus, the moving assembly 200 can swim up and down through the central hole (hole) of the upper plate 310 and the protective cover 320.

Further, the fixed frame 330 may be formed in a quadrangular shape having a smaller size than a quadrangular hole (hole) formed in the central portion of the protection cover 320, and thus a predetermined gap is formed between the fixed frame 330 and the protection cover 320, and the heater cover 220 of the movable unit 200 described below is preferably accommodated in the gap and moves up and down.

The fixing frame 330 may be fixedly disposed at an upper side of the upper plate 310, and for this purpose, a fixing guide 340 may be further disposed between the upper plate 310 and the fixing frame 330.

As shown, the fixed guide 340 may have a "-n" shape (when viewed from the front). Accordingly, the fixing guide 340 may be coupled at an upper end thereof to the fixing frame 330 and may be fixed at a lower end thereof to the upper plate 310 or the protective cover 320.

Specifically, the fixing guide 340 may be composed of: a frame coupling part 342 coupled to the fixed frame 330; and an upper coupling part 344 fixed to the upper plate 310 or the protective cover 320, in which the upper coupling part 344, which is a lower end of the fixing guide 340, is fastened to a top surface of the upper plate 310.

The fixing guides 340 may be provided in plural, and in the present invention, two fixing guides 340 are illustrated to be provided at a predetermined distance in front and rear of the upper side of the upper plate 310 and to support the fixing frame 330.

The fixed assembly 300 may be provided with a slide rail 350, and the slide rail 350 may slidably support a traveling bracket 560, a guide nut 530, or the like, which will be described below.

Specifically, the slide rail 350 is provided on the top surface of the fixed frame 330, has a predetermined left-right length, and a play bracket 560, a guide nut 530, or the like, which will be described later, may be provided on the slide rail 350 so as to be able to play left-right.

A movement control device 500 may be provided on the upper side of the fixed frame 330.

The movement control device 500 may be constituted by: a motor 510 generating rotational power; a lead screw 520 provided at one side of the motor 510 and rotated in association with rotation generated by the motor 510; and a guide nut 530 fastened to the lead screw 520 by screw-coupling.

The motor 510 generates rotational power, and a stepping motor (stepper) or the like may be used for precise rotational control. Such a stepping motor (stepping motor) is controlled by a pulse (burst) and can supply forward and reverse rotational movements according to the rotational angle.

As shown, the lead screw 520 is formed with a male screw on an outer surface of a thin cylinder having a prescribed length, and a guide nut 530 having a female screw corresponding to the male screw of the lead screw 520 is fastened. Accordingly, if the lead screw 520 is rotated by the power of the motor 510, the guide nut 530 moves left and right along the lead screw 520. As described above, the Lead Screw 520 (Lead Screw) and the guide Nut 530 (Nut) function to change the forward/reverse rotational motion to the linear motion.

A coupling 540 connecting one end of the lead screw 520 and a motor shaft may be further provided between the motor 510 and the lead screw 520. That is, as shown, a coupling 540 may be further provided at the right end of the lead screw 520 and the motor shaft protruding to the left of the motor 510.

The coupling 540 is used to reduce power loss caused by concentricity error between the shaft of the motor 510 and the shaft of the lead screw 520 and smooth rotation, and preferably an elastic coupling (flexible coupling) is used. That is, as the coupling 540, an MST or MSTs type elastic coupling (flexible coupling) may be used.

The motor 510 is disposed on a fixing bracket 550, the fixing bracket 550 is fixedly mounted on the fixing assembly 300, and the guide nut 530 may be mounted on a traveling bracket 560 movably disposed on the fixing assembly 300.

Specifically, the fixing frame 330 is disposed at an upper side of the upper plate 310 by a fixing guide 340 to be spaced apart from the upper plate 310, and a gap of a predetermined size is formed between the fixing frame 330 and the protection cover 320, thereby forming a moving path of the heater cover 220 described below.

A fixing bracket 550 and a play bracket 560 are provided on the upper side of the fixing frame 330 of the fixing unit 300, respectively. As shown, the fixing bracket 550 is fixedly installed to the top surface of the fixing frame 330, and the floating bracket 560 is provided to be capable of floating on the upper side of the fixing frame 330 to be close to or far from the fixing bracket 550.

As described above, the slide rail 350 is fixedly provided on the top surface of the fixed frame 330, and a slidable slide member 352 may be provided on such a slide rail 350, and the slide member 352 supports the play bracket 560.

As shown in the drawing, a slide member 352 having a quadrangular plate shape that can slide laterally is provided on the upper side of the slide rail 350, and the play bracket 560 is fixed to the top surface of the slide member 352, and the play bracket 560 can play laterally.

The motor 510 is attached to the fixing bracket 550, and the guide nut 530 is attached to the play bracket 560. Accordingly, when the lead screw 520 rotates according to the rotation of the motor 510 mounted to the fixed bracket 550, the guide nut 530 moves left and right, and thus the final play bracket 560 moves left and right along the slide rail 350.

The upper ends of links (links) of the link assembly 400 are rotatably provided to the stationary bracket 550 and the traveling bracket 560. That is, if the upper and left ends of the "X" shaped links (links) provided in the link assembly 400 are connected to the fixed bracket 550 and the traveling bracket 560, respectively, the upper and left ends of the "X" shaped links (links) approach or separate from each other as the traveling bracket 560 travels left and right, and thus the moving assembly 200 fixed to the lower end of the link assembly 400 travels up and down.

A protective bracket 360 and a position bracket 380 may also be provided on the upper side of the fixing frame 330 of the fixing assembly 300.

As shown, the protection bracket 360 may be provided at a left end top surface of the fixing frame 330, and a protection switch 370 may be provided therein, the protection switch 370 having a sensing function for protecting components from interference of the heater 210 and food, etc.

As shown, the position bracket 380 may be disposed on the right end top surface of the fixed frame 330, where a position switch 390 may be disposed, etc., and the position switch 390 may enable the moving assembly 200 to be accurately positioned at a home position or to sense a home position.

The protective cover 320 is provided with a plurality of guide members 322 for guiding the upward and downward movement of the moving unit 200. As shown in the drawing, four guide members 322 may be provided near corners of the protection cover 320 in the shape of a quadrangular frame, and such guide members 322 serve to support the heater cover 220 described below so as to prevent the heater cover 220 from interfering with the protection cover 320 when passing through a gap between the fixing frame 330 and the protection cover 320.

The moving assembly 200 may be constructed of: a heater cover 220 surrounding and protecting the heater 210; and an insulating member 230 provided at one end of the heater housing 220 to block heat or electromagnetic waves.

As shown in the drawing, the heater cover 220 may have a square box shape, and one or more holes (holes) through which the hot air of the heater 210 can pass may be formed in the bottom surface.

The heater housing 220 may move up and down through a gap between the fixing frame 330 and the protection cover 320. Therefore, the heater cover 220 has a square box shape with an upper opening, and has a predetermined thickness. The thicknesses of the four sides of the heater housing 220 are preferably formed to be smaller than the size of the gap between the fixing frame 330 and the protection cover 320.

A guide groove 222 selectively receiving the fixing guide 340 may be formed at the heater housing 220. That is, as shown in the drawing, guide grooves 222 recessed downward from the upper end by a predetermined length are formed in the left and right side surfaces of the heater cover 220, and the frame coupling portion 342 of the fixed guide 340 is accommodated in such guide grooves 222 when the moving unit 200 is lifted.

As shown, the insulating member 230 is preferably formed to have a quadrangular frame shape, and the side end of the insulating member 230 is preferably formed to protrude further to the outside than the side end of the heater cover 220. That is, the outer size of the insulating member 230 is formed to be larger than the side size of the heater cover 220, and it can function to block electromagnetic waves from leaking to the outside through the gap between the fixed frame 330 and the protective cover 320 in the case where the moving assembly 200 is lifted.

A seating groove 232 may be concavely formed at a lower side of the top surface of the insulating member 230, the seating groove 232 seating a lower end of the heater housing 220.

The heater 210 is accommodated and fixed inside the heater housing 220.

Preferably, the heater 210 may be formed in a long length in the left-right direction or in the front-rear direction, and a plurality of heaters may be provided at the inner lower end portion of the heater cover 220.

A heater bracket 212 is provided at both ends of the plurality of heaters 210 to guide the installation of the heaters 210 or the power supply of the heaters 210.

At the inner lower end of the heater cover 220, support ends 240 having a shape symmetrical to each other in a right-left direction may be provided in pairs, and such support ends 240 may support a plurality of the heaters 210.

On the other hand, the support end 240 may also support the lower end of the link assembly 400. That is, the upper end of the support end 240 may be coupled with the lower end of the link assembly 400. Accordingly, the moving assembly 200 may move up and down in a state of being fixed to the lower end of the link assembly 400.

A heater cover 250 covering an upper portion of the heater 210 may be further provided at an upper side of the heater 210, and the heater cover 250 may have a shape corresponding to the number or shape of the heaters 210.

Preferably, the link assembly 400 includes one or more links having upper ends rotatably connected to the fixed assembly 300 and lower ends rotatably connected to the moving assembly 200.

The link assembly 400 may be composed of a pair of front links 410 and 420 and a pair of rear links 430 and 440, etc., which are provided at a predetermined distance in the front and rear directions, and a link frame 450 coupled to the moving assembly 200 may be provided at lower ends of the front links 410 and 420 and the rear links 430 and 440.

Further, at least one of the left and right lower ends of the front links 410 and 420 and the rear links 430 and 440 may be allowed to move while being coupled to the link frame 450.

Specifically, the pair of front links 410 and 420 are coupled such that the first front link 410 and the second front link 420 forming an "X" shape rotatably intersect each other about the center, and the pair of rear links 430 and 440 are coupled such that the first rear link 430 and the second rear link 440 forming an "X" shape rotatably intersect each other about the center.

The lower ends of the first front link 410 and the first rear link 430, which are disposed at a predetermined distance from each other, may be connected by a connecting link 460, and the lower ends of the second front link 420 and the second rear link 440 may be connected to each other by the connecting link 460.

Preferably, at least one of the front links 410 and 420 and the rear links 430 and 440 may be movable in a state of being coupled to the link frame 450, and as shown in the drawing, the lower ends of the first front link 410 and the first rear link 430 may be movably disposed in the left and right directions of the link frame 450 in the present invention.

Accordingly, it is preferable that a first link protrusion hole 452 is formed at a left half portion of the link frame 450, and lower end shafts of the first front link 410 and the first rear link 430 are inserted into the first link protrusion hole 452 and guided to be capable of left and right play.

A position member 470 or the like for sensing the restoration of the home position of the moving assembly 200 may be further provided at the link frame 450. The position member 470 may be formed to protrude upward from the top surface of the link frame 450 by a prescribed height, and an upper end of such position member 470 may selectively interfere with the position switch 390.

A home position sensing device sensing a home position of the moving assembly 200 and a contact sensing device sensing whether a lower end of the moving assembly 200 is in contact with food inside the cooking chamber 12 may be provided at one side of the fixed assembly 300.

The home sensing means senses whether the moving assembly 200 completes the upward movement inside the cooking chamber 12, and may be constituted by the position switch 390 or the like.

The contact sensing means senses whether the lower end of the moving assembly 200 having the heater 210 is in contact with food or not, etc., and the contact sensing means may be constituted by the protection switch 370, etc.

Fig. 15 to 24 show an example of the respective components constituting the traveling heater system 100 in detail.

First, fig. 15 shows an exploded perspective view of the upper plate 310, the protective cover 320, and the fixing frame 330 constituting the fixing assembly 300.

As shown in the drawing, the upper plate 310 has a quadrangular plate shape, and an upper hole 312, which is a quadrangular hole of a predetermined size, is formed to penetrate the inside thereof. Such upper hole 312 becomes a passage for the moving assembly 200 to reciprocate up and down. Accordingly, the inner dimension of the upper hole 312 is preferably formed to be larger than the outer dimension of the heater cover 220.

A plurality of choke pieces 314 are formed on the upper plate 310. That is, as shown in the drawing, a plurality of choke pieces 314 vertically bent upward are formed to extend upward on the inner peripheral surface of the upper plate 310 having a quadrangular frame shape.

Specifically, a plurality of choke pieces 314 protruding upward are formed at the edge of the upper hole 312 formed at the center of the upper plate 310, and the choke pieces 314 function to block electromagnetic wave leakage inside the cooking chamber 12.

The protective cover 320 preferably has a quadrangular frame shape corresponding to the upper plate 310, and the size of the outer peripheral edge preferably has a size slightly smaller than that of the outer peripheral edge of the upper plate 310.

As shown in the drawing, a protection hole 325 corresponding to the upper hole 312 is formed in the center of the protection cover 320 so as to penetrate up and down, and the heater cover 220 can move up and down.

As shown, the protective cover 320 is preferably formed in a stepped shape, with the inside edge having a higher height than the outside edge.

Specifically, the protective cover 320 may be composed of: a protection step portion 324 formed to have a cross section (when viewed from front and rear or left and right) in the shape of an "l" and a "n"; a protection lower end 326 formed by vertically bending and extending laterally from the lower end of the protection step 324; and a protection upper end 328 vertically bent upward from an inner edge of the protection step 324.

The choke piece 314 of the upper plate 310 may be accommodated at the lower side of the protection step 324.

As shown, the fixing frame 330 may be formed to have a "-n" -shaped cross section (when viewed from the side). Accordingly, the fixing frame 330 may be composed of: a flat plate-shaped horizontal end 332 having a prescribed thickness; and a vertical end 334 formed by vertically bending from the front and rear ends of the horizontal end 332 to the lower side.

A pair of link through holes 336 are formed vertically through the horizontal end 332. The link through hole 336 is preferably formed to have a predetermined length in the left-right direction, and the link assembly 400 is a passage through which a link (link) passes. That is, the pair of front links 410 and 420 and the rear links 430 and 440 are provided to pass through the link through-hole 336.

Fig. 16 shows the structure of the guide member 322 in a perspective view.

As shown, the guide member 322 may include: a roller 322a selectively connected to an outer surface of the heater cover 220; a roller shaft 322b serving as a rotation center of the roller 322 a; a roller support portion 322c rotatably supporting the roller 322a or the roller shaft 322 b; and a roller fixing end 322d formed by bending and extending from the lower end of the roller supporting portion 322c, and fixed to the protection cover 320.

The roller 322a may be formed in a cylindrical shape or a cylindrical shape, and the material may be composed of an elastic material such as rubber. The roller 322a may be rotatably connected to the roller shaft 322b, or the roller 322a and the roller shaft 322b may be fixed. In the case where the roller 322a and the roller shaft 322b are fixed or integrally formed, the roller shaft 322b needs to be rotatably connected to the upper end of the roller support portion 322 c.

As shown, the roller support portion 322c may be formed in a flat plate having a predetermined thickness or in a bent shape.

The roller fixing end 322d extends from the roller support portion 322c and is bendable so as to be perpendicular to the roller support portion 322c or so as to have a predetermined inclination.

The roller fixing end 322d is preferably fixedly mounted to the top surface of the protection step 324 of the protection cover 320. Thus, the distal end portion (inner end) of the roller 322a protrudes to a predetermined portion inside the protection hole 325 of the protection cover 320, and contacts the outer surface of the heater cover 220 passing through the gap between the protection cover 320 and the fixing frame 330.

Fig. 17 shows the movement control device 500 in an exploded perspective view.

As shown in the drawing, the lead screw 520 of the movement control device 500 is preferably formed long in the left-right direction, and a screw thread is formed on the outer circumferential surface. Further, an insertion protrusion 522 protruding rightward is formed at a right end of the lead screw 520, and the insertion protrusion 522 may be inserted into a central groove of the coupling 540.

The guide nut 530 may be composed of: a nut portion 532 formed in a cylindrical shape through which the lead screw 520 passes; and a nut fixing portion 534 formed to extend perpendicularly to the nut portion 532 so as to fix the nut portion 532 to the play bracket 560.

Preferably, female threads corresponding to male threads formed on the outer circumferential surface of the lead screw 520 are formed on the inner circumferential surface of the nut portion 532 of the lead nut 530, and the lead screw 520 and the lead nut 530 are screw-coupled to each other.

As described above, the coupling 540 is formed of an elastic coupling (flexible coupling) and may have a predetermined left-right elasticity or a predetermined left-right length (reduction and extension of length).

As described above, the motor 510 is used to generate rotational power and provide the rotational power to the lead screw 520, and preferably, a motor shaft (not shown) of such motor 510 is inserted into and fixed to a right-side end central portion groove of the coupling 540.

Fig. 18 shows the structure of the fixing bracket 550 in a perspective view. As shown, the fixing bracket 550 may be formed of: a motor seating end 552 formed to have a plane at least at the top so as to support and fix the motor 510; a motor fixing end 554 formed to extend vertically upward from the motor mounting end 552, thereby supporting a side surface of the motor 510; and link fastening ends 556 formed to extend upward from front and rear ends of the motor mounting end 552, respectively, and rotatably support upper ends of the front links 410 and 420 and the rear links 430 and 440.

A fixing fastening end 558 may be formed at left and right ends of the motor seating end 552 such that the fixing bracket 550 is fixedly mounted to the top surface of the fixing frame 330 by a fastening tool such as a bolt. As shown, the fixed fastening end 558 may also be formed to have a lower elevation than the motor mounting end 552.

As shown, the motor fixing end 554 may be formed in a vertical plane, and a motor hole 554a penetrating right and left may be formed therein. The motor hole 554a is formed to have a diameter of a predetermined size, and a motor shaft (not shown) or a coupling 540 of the motor 510 can be accommodated in the motor hole 554a so as to penetrate right and left.

An upper right link shaft 557 may be formed convexly forward and rearward at the pair of link fastening ends 556, respectively, the upper right link shaft 557 supporting upper ends of the first front link 410 and the first rear link 430 to be rotatably connected, respectively.

Further, a reinforcing portion 556a protruding forward or backward is formed on the front or rear surface of the pair of link fastening ends 556, so that the rigidity can be enhanced.

Fig. 19 is a perspective view showing the configuration of the play carrier 560. As shown, the traveling bracket 560 is preferably formed such that the bottom surface has a quadrangular or rectangular cross section, and is closely fixed to the top surface of the sliding member 352.

As shown in the drawing, a nut support end 562 is formed to protrude rightward from the right side surface of the play bracket 560. The nut support end 562 supports and fixes the guide nut 530, and as shown, may be formed in a shape corresponding to at least a shape of a lower end portion of the guide nut 530, supporting a lower portion of the guide nut 530.

A bolt groove 564 penetrating the left and right is formed in the center of the play bracket 560 so as to be recessed downward. The bolt slot 564 is preferably formed larger than the outer diameter of the lead screw 520 where the lead screw 520 may be received.

Left upper link shafts 566 protruding forward and rearward are formed on the front and rear surfaces of the play bracket 560, respectively. The upper left link shaft 566 is a portion that connects the upper ends of the links (links) of the link assembly 400 to be rotatable together with the upper right link shaft 557. That is, preferably, upper ends of the second front link 420 and the second rear link 440 are rotatably connected to the pair of upper left link shafts 566, respectively.

Further, reinforcing portions 566a such as reinforcing portions 556a formed at the link fastening ends 556 may be formed so as to protrude forward and rearward, respectively, on the front and rear surfaces of the play bracket 560.

Fig. 20 shows a front perspective view showing the structure of the protective bracket 360.

As shown, the protection bracket 360 may be formed of: a protection support portion 362 formed to have a predetermined up-down size and thickness; and a protection fixing end 364 vertically bent from the lower end of the protection supporting part 362 to be closely fixed to the top surface of the fixing frame 330.

Also, a protection switch 370 may be provided at the protection support 362, and the protection switch 370 may interfere with the lead screw 520 to sense whether the moving assembly 200 is in contact with food, and for this purpose, a protection setting end 366 for supporting the protection switch 370 may be further provided at the protection support 362.

As shown in the drawing, the protection setting end 366 is formed to extend from the rear surface of the protection support portion 362 to the rear side, and is configured to support the protection switch 370.

Fig. 21 shows a front perspective view showing the structure of the position bracket 380.

As shown, the position bracket 380 may be formed of: a position supporting portion 382 formed to have a predetermined up-down size and thickness; and a position fixing end 384 vertically bent from the lower end of the position supporting part 382 so as to be closely fixed to the top surface of the fixing frame 330.

Further, a position switch 390 or the like may be provided to the position support 382, and the position switch 390 may interfere with the position member 470 to sense whether the moving assembly 200 is restored to the original position, and for this purpose, a position setting end 386 for supporting the position switch 390 or the like may be provided to the position support 382.

As shown in the drawing, the position setting end 386 is formed to extend rearward from the rear surface of the protection support portion 362 and supports a position switch 390 and the like.

On the other hand, the position bracket 380 may be coupled to the fixing bracket 550, and for this purpose, a bracket coupling end 388 perpendicular to the position supporting portion 382 may be formed at the left end of the position bracket 380.

Fig. 22 shows an exploded perspective view showing the constitution of the heater cover 220 and the insulating member 230.

As shown in the drawing, the heater cover 220 has a square box shape with an upper opening, and a heater net 224 is formed on a bottom surface of the heater cover 220.

As shown in the drawing, the heater net 224 is preferably formed in a net shape having a plurality of upper and lower through holes (holes) formed therein. This is to smoothly transfer the radiant heat of the heater 210 provided in the heater cover 220 to the lower side through the bottom surface of the heater cover 220.

As shown in the drawing, the insulating member 230 has an insulating hole 234 formed therein to penetrate up and down, and has a quadrangular frame shape, and can function to prevent leakage to the outside of the electronic board or the like by shielding a gap between the protective cover 320 and the fixed frame 330 in a case where the moving assembly 200 is positioned at a home position of the upper end of the cooking chamber 12.

The insulating member 230 is preferably formed to have a size larger than the inner diameter sizes of the upper hole 312 and the protection hole 325. That is, it is preferable that the outer dimension in the transverse and vertical directions of the insulating member 230 having a quadrangular shape is formed to be greater than the dimension in the transverse and vertical directions of the inner diameters of the upper hole 312 and the protection hole 325, and the insulating member 230 and the upper plate 310 are partially overlapped with each other when the moving assembly 200 is positioned at the home position of the upper end of the cooking chamber 12, thereby preventing electromagnetic waves inside the cooking chamber 12 from leaking to the outside.

Fig. 23 is a perspective view showing the constitution of the support end 240 of the moving assembly 200.

As shown in the drawing, it is preferable that the pair of support ends 240 are provided in a shape symmetrical to each other in the left-right so as to enable the moving assembly 200 to be coupled to the lower end of the link assembly 400 while supporting the plurality of heaters 210, etc.

Accordingly, the support end 240 may be formed of: a bottom support 242 which is tightly fixed to the top surface of the bottom surface of the heater cover 220; a heater installation part 244 protruded upward from one end of the bottom support part 242 to support the heater 210; and a link connecting portion 246 vertically bent upward from the other end of the bottom supporting portion 242.

As shown, the link connection portion 246 may be formed to have a size greater than the up-down height of the heater seating portion 244, and the bottom surface of the link frame 450 of the link assembly 400 may be closely fixed to the upper end of such link connection portion 246.

More than one groove may be formed in the heater mounting portion 244 so as to be recessed downward, the heater 210 may pass through or be supported by the groove, and the heater bracket 212 may be fixed to the heater mounting portion 244.

Fig. 24 shows an exploded perspective view showing the main constitution of the link assembly 400.

As shown, the first and second front links 410 and 420 rotatably cross each other in an X-shape state centering around the center, and the first and second rear links 430 and 440 rotatably cross each other in an X-shape state centering around the center.

Accordingly, link center shafts 412 and link center holes 422 having shapes corresponding to each other and rotatably coupled are formed at the central portions of the first and second front links 410 and 420, respectively. As shown in the drawing, the case where the link center shaft 412 is formed at the first front link 410 and the link center hole 422 is formed at the second front link 420 is exemplified in the present invention. That is, the link center shaft 412 is formed to protrude forward or backward from the front or rear surface of the center portion of the first front link 410, the link center hole 422 is formed to penetrate forward and backward through the center portion of the second front link 420, and the link center shaft 412 of the first front link 410 may be rotatably inserted into the link center hole 422 of the second front link 420.

Similarly, link center shafts 412 and link center holes 422 having shapes corresponding to each other and rotatably coupled to each other are formed at the center portions of the first and second rear links 430 and 440, respectively. As shown in the drawing, the case where the link center shaft 412 is formed at the first rear link 430 and the link center hole 422 is formed at the second rear link 440 is exemplified in the present invention.

First link holes 414 penetrating forward and backward are formed at upper ends of the first front link 410 and the first rear link 430, respectively, and an upper right link shaft 557 of the fixing bracket 550 is rotatably inserted into and coupled to such first link holes 414.

A second link hole 424 penetrating in the front-rear direction is formed at the upper ends of the second front link 420 and the second rear link 440, respectively, and the upper left link shaft 566 of the traveling bracket 560 is rotatably inserted into and coupled to such second link hole 424.

A first link protrusion 416 may be convexly formed at lower ends of the first front link 410 and the first rear link 430 forward or rearward, and such first link protrusion 416 is connected with the link frame 450.

A second link protrusion 426 may be formed at lower ends of the second front link 420 and the second rear link 440 to protrude forward or rearward, and the second link protrusion 426 is connected to the link frame 450.

As shown, the link frame 450 includes: a bottom 454 formed of a flat plate having a prescribed thickness; and a link connecting end 456 formed by vertically bending and extending upward from the front end and the rear end of the bottom 454.

The lower ends of the first front link 410 and the first rear link 430 and the lower ends of the second front link 420 and the second rear link 440 may be rotatably connected to the link connection end 456, respectively.

As shown, a first link protrusion hole 452 is formed through the left half of the link connection end 456 in the front-rear direction, and the first link protrusion 416 formed at the lower ends of the first front link 410 and the first rear link 430 is received in the first link protrusion hole 452.

As shown in the drawing, the first link protrusion hole 452 is preferably formed to have a predetermined left-right length, and the first link protrusion 416 is preferably movable left-right in a state of being received in the first link protrusion hole 452.

First link protrusion grooves 452a recessed downward may be formed at left and right ends of the first link protrusion hole 452, respectively. The first link projection 452a is a portion where the first link projection 416 can be temporarily stopped after the moving unit 200 is moved up and down.

As shown in the drawing, a second link protrusion hole 458 is formed through the right half of the link connection end 456 in the front-rear direction, and the second link protrusion 426 formed at the lower ends of the second front link 420 and the second rear link 440 is received in the second link protrusion hole 458.

According to the above-described configuration, the second link boss 426 is kept in a state of being received in the second link boss hole 458, and the first link boss 416 is allowed to move left and right in a state of being received in the first link boss hole 452, so that the lower ends of the first front link 410 and the first rear link 430 can be brought close to or away from the lower ends of the second front link 420 and the second rear link 440, and thus the link connecting end 456 can move up and down.

Hereinafter, the function of the cooking apparatus of the present invention having the constitution as described above will be described with reference to the accompanying drawings.

First, as shown in fig. 1, before cooking is started in a state where the traveling heater system 100 is disposed on the top surface of the housing 10, as shown in fig. 2 to 7, the moving assembly 200 of the traveling heater system 100 is located at the upper end portion of the cooking chamber 12.

Accordingly, at this time, the moving assembly 200 is in a state of being raised to the upper side, and thus the first link protrusions 416 of the first front link 410 and the first rear link 430 are located at the left side ends of the first link protrusion holes 452 of the link frame 450.

In this state, if the guide nut 530 is gradually moved to the right side according to the rotation (forward rotation) of the motor 510, the upper ends of the first and second front links 410 and 420 and the upper ends of the first and second rear links 430 and 440 are gradually moved closer together, and thus the moving assembly 200 is moved to the lower side of the cooking chamber 12.

On the other hand, if the moving assembly 200 descends inside the cooking chamber 12 and collides with food inside the cooking chamber 12, the moving assembly 200 cannot descend further, and thus the guide nut 530 is restricted. As described above, when the movement of the guide nut 530 is stopped in a state where the motor 510 continues to rotate forward, the coupling 540 generates a tensile force according to the rotation of the lead screw 520, and the left end of the lead screw 520 is extended to the left side.

If the left end of the lead screw 520 moves to the left a predetermined distance, the protection switch 370 provided adjacent to the lead screw 520 is activated, and the rotation of the motor 510 is stopped. Due to the above-described process, not only food inside the cooking chamber 12 but also the coupling 540 and the like are prevented from being damaged.

Of course, in this case, the motor 510 may be directly reversed to raise the moving unit 200.

Fig. 8 to 11 show the traveling heater system 100 in a state in which the moving assembly 200 moves to the lower side of the upper plate 310 and descends into the cooking chamber 12.

At this time, the first link protrusions 416 of the first front link 410 and the first rear link 430 are located at right side ends of the first link protrusion holes 452 of the link frame 450.

If the moving assembly 200 descends inside the cooking chamber 12, the heater 210 approaches the food inside the cooking chamber 12, and thus cooking of the food can be further rapidly performed.

If cooking is completed in this state, the moving assembly 200 should be lifted and restored to the original position. In order to raise the moving assembly 200, the motor 510 should be controlled to be reversed, and if the guide nut 530 is gradually moved to the left by the reversal of the motor 510, the upper ends of the first and second front links 410 and 420 and the upper ends of the first and second rear links 430 and 440 are gradually moved away, so that the moving assembly 200 is moved to the upper side of the cooking chamber 12 and is positioned at the home position.

Whether the moving assembly 200 is lifted and positioned at the home position may be sensed by the position member 470, the position switch 390, and the like. When the interval between the insulating member 230 of the moving unit 200 and the upper plate 310 is equal to or less than a predetermined interval, the motor 510 is controlled to stop by activating the position switch 390 at the upper end of the position member 470 provided in the moving unit 200.

Due to the control as described above, electromagnetic waves can be prevented from leaking through the gap between the upper plate 310 and the insulating member 230 while preventing collision and damage of the upper plate 310 and the insulating member 230.

In addition, the position switch 390 is controlled so that electromagnetic waves of the cooking apparatus can be utilized only when the moving assembly 200 is restored to the original position. Accordingly, in case that the moving assembly 200 descends into the inside of the cooking chamber 12, electromagnetic wave use of the cooking apparatus is cut off, thus preventing leakage of electromagnetic waves.

The scope of the present invention is not limited to the above-described exemplary embodiments, and those skilled in the art can make various other modifications based on the present invention within the technical scope as described above.

Claims (15)

1. A cooking apparatus, comprising:

A housing having a cooking chamber formed therein;

a door rotatably provided at one side of the housing to open and close the cooking chamber; and

a swimming heater system having a heater generating hot air, capable of swimming the heater inside a cooking chamber;

the traveling heater system includes:

a moving assembly mounted with the heater; and

and a fixed assembly capable of being movably connected to the fixed assembly, thereby supporting the movable assembly.

2. The cooking apparatus of claim 1, wherein the cooking apparatus comprises a cooking chamber,

the walk-behind heater system includes a linkage assembly that enables the mobile assembly to be walk-behind connected to the stationary assembly.

3. The cooking apparatus of claim 1, wherein the cooking apparatus comprises a cooking chamber,

the fixed assembly is provided with a movement control device which restricts the upward and downward movement of the movable assembly.

4. A cooking apparatus as claimed in claim 3, characterized in that,

the movement control device includes:

a motor for generating rotational power;

a lead screw provided at one side of the motor and rotated in association with rotation generated by the motor; and

And the guide nut is fastened with the lead screw through a threaded combination.

5. The cooking apparatus of claim 4, wherein the cooking apparatus comprises a cooking chamber,

a coupler is further arranged between the motor and the lead screw, and the coupler is connected with one end of the lead screw and the motor shaft.

6. The cooking apparatus of claim 4, wherein the cooking apparatus comprises a cooking chamber,

the motor is arranged on the fixing bracket, the fixing bracket is fixedly arranged on the fixing assembly, and the guide nut is arranged on the floating bracket which can be movably arranged on the fixing assembly.

7. A cooking apparatus as claimed in claim 3, characterized in that,

the fixing assembly includes:

an upper plate forming a top surface of the cooking chamber;

the protective cover is arranged on the upper plate and used for blocking electromagnetic waves from passing through a gap between the movable assembly and the fixed assembly; and

and a fixed frame arranged on the upper side of the upper plate and supporting the movement control device.

8. The cooking apparatus of claim 7, wherein the cooking apparatus comprises a cooking chamber,

the fixing frame is disposed at an upper side of the upper plate by a fixing guide to be spaced apart from the upper plate, and a gap of a predetermined size is formed between the fixing frame and the protective cover.

9. The cooking apparatus of claim 7, wherein the cooking apparatus comprises a cooking chamber,

the fixing frame is disposed at an upper side of the upper plate by a fixing guide to be spaced apart from the upper plate, and a gap of a predetermined size is formed between the fixing frame and the protective cover.

10. The cooking apparatus of claim 7, wherein the cooking apparatus comprises a cooking chamber,

the protective cover is provided with a plurality of guide members for guiding the moving assembly to move up and down.

11. The cooking apparatus of claim 7, wherein the cooking apparatus comprises a cooking chamber,

the protective cover is provided with a plurality of guide members for guiding the moving assembly to move up and down.

12. The cooking apparatus of claim 2, wherein the cooking apparatus comprises a cooking chamber,

the connecting rod assembly comprises more than one connecting rod, the upper end of the connecting rod assembly is rotatably connected with the fixed assembly, and the lower end of the connecting rod assembly is rotatably connected with the moving assembly.

13. The cooking apparatus of claim 2, wherein the cooking apparatus comprises a cooking chamber,

the link assembly includes a pair of front links and a pair of rear links disposed at a prescribed distance in front-rear directions.

14. The cooking apparatus of claim 13, wherein the cooking apparatus further comprises a cooking device,

And a link frame coupled to the moving unit is further provided at lower ends of the front link and the rear link, and at least one of left and right lower ends of the front link and the rear link is allowed to move while being coupled to the link frame.

15. The cooking apparatus of claim 1, wherein the cooking apparatus comprises a cooking chamber,

one side of the fixed component is provided with a home position sensing device and a contact sensing device, the home position sensing device senses the home position of the movable component, and the contact sensing device senses whether the lower end of the movable component is in contact with food in the cooking chamber.