KR20230061210A - Cooking appliance - Google Patents

Abstract

The present invention relates to a cooking appliance equipped with a heater capable of moving up and down inside a cooking chamber. A cooking appliance according to the present invention includes a case in which a cooking chamber is formed; a door rotatably provided on one side of the case and opening and closing the cooking chamber; a heater provided on one side of the case and generating heat; a flow heater system provided on one side of the case and allowing the heater to flow inside the cooking chamber; It is provided on one side of the case and is composed of an in-situ detection means for detecting whether or not the heater is located in an in-situ position. According to such a cooking appliance, leakage of electromagnetic waves or damage to parts is prevented.

Description

Cooking appliance {Cooking appliance}

The present invention relates to a cooking appliance equipped with a heater capable of moving up and down inside a cooking chamber.

The cooking appliance is an appliance that cooks food accommodated therein by using heat from a heater, which is a heating source.

Further, the cooking appliance is generally composed of a main body having a cooking chamber, which is a space for accommodating food, one or more heaters provided in the main body, and a door rotatably coupled to the main body to open and close the front of the cooking chamber.

Recently, a steam generating device such as Korean Publication No. 10-2018-0126237 is sometimes added to increase the effectiveness of such a cooking appliance.

In addition, the food defrosting device disclosed in US Registration No. US4303820 is provided with a pair of flat electrodes defining a food defrosting zone, and one of the electrodes is configured to be movable so that a frozen food rod can be inserted. And the relatively low wattage power supply provides even energy distribution across the food load for gentle heating (thawing).

US registration number US8258440 discloses an apparatus and method for reheating a package of refrigerated or frozen food. The heating device makes conductive heat transfer contact with the food packaging, reheats the food packaging to the reheating temperature during the reheating time in the reheating mode, and maintains the temperature in the holding mode after the food reaches the reheating temperature.

Although a link-type lifting system has been disclosed in this conventional cooking appliance, the heating is not accurate due to the structure in which the heater is lowered by its own weight to defrost food, and the heater collides with food inside the cooking appliance. There is a problem in that prevention or in-situ control of the heater is insufficient. Therefore, there is a risk of leakage of electromagnetic waves inside the cooking appliance, occurrence of safety accidents, and failure due to product damage.

Korean Patent Publication No. 10-2018-0126237 US Patent Registration No. US4303820 US Patent Registration No. US8258440

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

Another object of the present invention is to provide a cooking appliance that effectively shields electromagnetic waves passing through the periphery of a heater system that ascends and descends.

Another object of the present invention is to provide a cooking appliance that accurately detects the in-situ position of a heater moving up and down inside a cooking chamber.

According to a feature of the present invention for achieving the above object, the cooking appliance according to the present invention includes a heater that flows up and down inside the cooking chamber. Therefore, the heater can heat food close to it.

In the present invention, an in-situ detection means for detecting whether or not the heater flowing inside the cooking chamber is in its original position at the top of the cooking chamber is provided.

In the present invention, microwaves ( ) are set to be generated only when the heater flowing inside the cooking chamber is located at the top of the cooking chamber. Therefore, leakage of electromagnetic waves through gaps around the moving heater is prevented.

A cooking appliance according to the present invention includes a case in which a cooking chamber is formed; a door rotatably provided on one side of the case and opening and closing the cooking chamber; a heater provided on one side of the case and generating heat; a flow heater system provided on one side of the case and allowing the heater to flow inside the cooking chamber; It is provided on one side of the case and detects whether or not the heater is located in the original position; characterized in that it comprises a.

The flow heater system includes a moving assembly to which the heater is mounted and protected, a fixed assembly to control the up and down movement of the moving assembly, and a link assembly to allow the moving assembly to be fluidly connected to the fixed assembly. to be characterized

The in-situ detection means includes a position switch provided on one side of the flow heater system; a position lever provided on one side of the flow heater system and selectively pressing a position button of the position switch; It is provided on one side of the flow heater system, and a positioning member selectively pushing the position lever according to the up and down flow of the heater; characterized in that it includes a.

The positioning member is characterized in that it is provided in the moving assembly or the link assembly.

The position lever is characterized in that it is formed to have elasticity by its own material or shape.

The position lever is characterized in that it has a shape bent more than once.

The position lever is characterized in that it includes a contact end for directly or indirectly pressing the position button of the position switch, and an interference part selectively contacting one end of the position member.

Between the contact end and the interference portion, a connection portion bent at a predetermined angle with the interference portion is further provided.

The position switch further includes a guide lever installed to have elasticity and directly contacting the position button; It is characterized in that the contact end presses the guide lever.

It is characterized in that the fixed assembly is provided with a moving control means for forcing the moving assembly to move up and down by control of the link assembly.

The moving control unit is provided with a motor that generates rotational power, and the moving assembly moves up and down by the rotation of the motor.

The moving assembly is characterized in that it stops when the position button of the position switch is pressed.

The motor is characterized in that it is stopped after operating for a predetermined time even after the position button of the position switch is pressed and turned on.

It is characterized in that the height at which the heater descends inside the cooking chamber can be arbitrarily set.

It is characterized in that the height at which the heater descends inside the cooking chamber is set to 2 or more.

The cooking appliance according to the present invention has the following effects.

First, in the cooking appliance according to the present invention, the heater can flow up and down inside the cooking chamber. Therefore, since the heater can be brought close to the food in the cooking chamber to cook, heat loss can be minimized and the cooking time of the food can be shortened.

Second, in the present invention, a flexible connection coupling is provided between the motor and the lead screw. Therefore, there is an advantage in reducing power loss due to concentricity error between the motor shaft and the lead screw and facilitating transmission of rotational power.

Third, in the present invention, a guide member is provided to guide the vertical movement of the moving assembly. That is, a plurality of roller-type guide members are provided to control the vertical movement of the moving assembly. Accordingly, interference between the heater housing, the protective cover, and the fixing frame is prevented during vertical movement of the moving assembly equipped with the heater, thereby preventing component damage and noise generation.

Fourth, in the present invention, an insulating member is provided in the moving assembly to shield a gap between the moving assembly and the case of the cooking appliance. Therefore, there is an advantage in that leakage of electromagnetic waves through the gap between the moving assembly and the case is prevented.

Fifth, in the present invention, the edge of the insulating member provided in the moving assembly is configured to overlap the upper plate forming the upper surface of the cooking chamber. Therefore, when the moving assembly is raised inside the cooking chamber and returned to its original position, there is an advantage in that leakage of electromagnetic waves inside the cooking chamber to the outside is blocked.

Sixth, in the present invention, a protection switch is provided to detect whether food interferes with food when the moving assembly descends. Therefore, when the food and the moving assembly come into contact, the descending of the moving assembly is stopped, thereby preventing damage to food and parts.

Seventh, in the present invention, an in-situ detection means for detecting whether or not the moving assembly or the heater is in the original location at the top of the cooking chamber is provided. Therefore, since the original position of the heater is accurately sensed, there is an advantage in preventing collision or damage of components (moving assembly) due to over-rotation of the motor.

Eighth, in the present invention, the microwave ( ) is operated only when the moving assembly that moves up and down the cooking chamber is placed in the original position at the top of the cooking chamber. Therefore, there is an advantage in that leakage of electromagnetic waves through the gap between the moving assembly and the upper surface of the cooking chamber is blocked.

1 is a perspective view showing the internal structure of a cooking appliance in a state in which an outer cover is removed in a preferred embodiment of the cooking appliance according to the present invention;
2 is a perspective view showing the configuration of a flow heater system constituting an embodiment of the present invention.
3 is an exploded perspective view showing the configuration of a flow heater system constituting an embodiment of the present invention.
4 is a plan view of the flow heater system shown in FIG. 2;
5 is a front view of the flow heater system shown in FIG. 2;
6 is a side view of the flow heater system shown in FIG. 2;
7 is a front cross-sectional view of the flow heater system shown in FIG. 2;
8 is a perspective view showing a state when a heater descends in the flow heater system shown in FIG. 2;
9 is a plan view of the flow heater system shown in FIG. 8;
10 is a front view of the flow heater system shown in FIG. 8;
11 is a side view of the flow heater system shown in FIG. 8;
12 is an exploded perspective view showing the configuration of a fixed assembly constituting a flow heater system of a cooking appliance according to the present invention;
13 is an exploded perspective view showing the configuration of a moving assembly constituting a flow heater system of a cooking appliance according to the present invention;
14 is an exploded perspective view showing the configuration of a link assembly constituting a flow heater system of a cooking appliance according to the present invention;
15 is an exploded perspective view showing the configuration of an upper plate 310, a protective cover 320, and a fixing frame 330 constituting an embodiment of the present invention.
16 is a perspective view showing the configuration of a guide member constituting an embodiment of the present invention.
17 is an exploded perspective view showing the configuration of moving control means constituting an embodiment of the present invention;
18 is a perspective view showing the configuration of a fixing bracket constituting an embodiment of the present invention.
19 is a perspective view showing the configuration of a moving bracket constituting an embodiment of the present invention.
20 is a perspective view showing the configuration of a protection bracket constituting an embodiment of the present invention.
21 is a perspective view showing the configuration of a location bracket constituting an embodiment of the present invention;
22 is an exploded perspective view showing the configuration of a heater housing and an insulating member constituting an embodiment of the present invention;
23 is a perspective view showing the configuration of a support end of a moving assembly constituting an embodiment of the present invention;
24 is an exploded perspective view showing the main configuration of a link assembly constituting an embodiment of the present invention;
25 is a perspective view showing a coupled state of a link assembly constituting an embodiment of the present invention and a moving control means;
26 is a front view showing a state in which a moving assembly is located at a specific height according to the operation of a link assembly constituting an embodiment of the present invention;
27 is a partial cross-sectional view showing a state in which an in-situ detection means constituting an embodiment of the present invention is installed.
28 is a partially enlarged view showing the configuration and operating state of the in-situ detection means constituting the embodiment of the present invention.

Hereinafter, a cooking appliance according to the present invention will be described in detail with reference to the accompanying drawings. The cooking appliance according to the present invention may be various types of food cooking appliances such as a microwave oven or an electric oven.

1 is a perspective view of an embodiment of a cooking appliance according to the present invention. That is, FIG. 1 shows a perspective view of the main components of the inside of the cooking appliance in a state in which the outer cover is removed for description of the cooking appliance according to the present invention.

As shown, the cooking appliance according to the present invention includes a case 10 in which a cooking chamber 12 is formed therein, and a door 20 provided on one side of the case 10 to open and close the cooking chamber 12. made up of etc.

The case 10 serves as a main body of the cooking appliance, and may be formed in a rectangular box shape as shown, and is preferably opened at the front for storing or withdrawing food.

In this way, when the front of the case 10 is opened, a door 20 for shielding when cooking food is provided. This door 20 may be rotatably installed around a hinge to open and close.

In the present invention, as illustrated, a case in which the door 20 is rotatably installed around a lower hinge is exemplified.

A front frame 14 is provided on the front of the case 10 to form a front appearance of the case 10, and various display units (not shown) or deco panels may be further provided thereto.

A support plate 30 for supporting food or containers may be provided inside the cooking chamber 12, and the support plate 30 may be rotatably installed.

The flow heater system 100 is provided on the upper side of the case 10 as shown. The flow heater system 100 is a system that allows a heater to flow vertically inside the cooking chamber 12 .

A heater for generating heat may be provided on the upper side of the case 10, and two or more such heaters may be provided. That is, a heater is also provided in the flow heater system 100 to flow up and down the cooking chamber 12, and in addition to the flow heater system 100, a heater may be further provided in the case 10. can

In addition, the cooking appliance according to the present invention has a sensing function for detecting whether the heater of the flow heater system 100 is in contact with food in the cooking chamber 12 or has a certain distance, and the flow heater system ( 100) A function of detecting a return of a heater to an original position may be provided.

Such a flow heater system 100 and various functions will be described in detail below.

2 to 14 show the configuration of the flow heater system 100. That is, FIGS. 2 and 3 show a perspective view and an exploded perspective view showing the configuration of the flow heater system 100, respectively, and FIGS. 4 to 7 show a plan view, front view, side view, and front view of the flow heater system 100. Cross-sectional views are shown, respectively. In addition, FIG. 8 shows a perspective view of the flow heater system 100 in a state in which the internal heater is lowered, and FIGS. 9 to 11 show plan and front views of the flow heater system 100 shown in FIG. A side view is shown, respectively. And FIGS. 12 to 14 show exploded perspective views of a fixed assembly, a moving assembly, and a link assembly constituting the flow heater system 100, respectively.

As shown in these drawings, the flow heater system 100 is provided with a heater 210 that generates heat, and this heater 210 can be installed to flow vertically inside the cooking chamber 12. .

In addition, the case 10 or the flow heater system 100 has a sensing function for detecting whether the heater 210 is in contact with food in the cooking chamber 12 or has a certain distance, and the heater 210 A function of detecting a return to the original position of may be provided.

The moving heater system 100 includes a moving assembly 200 to which the heater 210 is mounted and protected, and a fixed assembly provided on one side of the case 10 to control the up and down movement of the moving assembly 200 ( 300), and a link assembly 400 provided on one side of the moving assembly 200 so that the moving assembly 200 is connected to the fixed assembly 300 in a flexible manner.

The moving assembly 200 is made separate from the case 10 and is installed so as to be able to move up and down inside the cooking chamber 12, and is configured to cover at least the side of the heater 210 so that the heater 210 It is preferable to be configured so that the heat of the is concentrated to the lower side and not dissipated to the side.

The fixing assembly 300 is fixedly installed on the upper side of the case 10 to support the moving assembly 200 to move vertically in a state supported on the upper surface of the case 10 .

Accordingly, a moving control means 500 for forcing the moving assembly 200 to move up and down under the control of the link assembly 400 is provided in the fixed assembly 300 .

The link assembly 400 may be provided on the upper side of the moving assembly 200, and is configured to include one or more links, so that the moving assembly 200 is connected to the fixed assembly 300. is guided to flow up and down.

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 is provided on the upper plate 310 forming the upper surface of the cooking chamber 12 and the upper plate 310 to close the gap between the moving assembly 200 and the fixing assembly 300. It may be composed of a protective cover 320 that blocks electromagnetic waves through the upper plate 310 and a fixed frame 330 provided on the upper side of the upper plate 310 to support the moving control means 500 .

The upper plate 310 may be formed in the shape of a square flat plate having a predetermined thickness to form the upper surface of the cooking chamber 12 . In addition, the central portion of the upper plate 310 may penetrate vertically to provide a passage through which the moving assembly 200 flows vertically.

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

More specifically, the protective cover 320 may also be configured to have a rectangular shape as a whole like the upper plate 310, and the central portion of the protective cover 320 also vertically like the upper plate 310. A through hole may be formed to have a square frame shape. Therefore, the moving assembly 200 can move up and down through the central hole of the upper plate 310 and the protective cover 320 .

In addition, the fixing frame 330 may be formed in a square shape smaller than a rectangular hole formed in the central portion of the protective cover 320, and thus the fixing frame 330 and the protective cover 320 ), a predetermined gap is formed between them, and it is preferable that the heater housing 220 of the moving assembly 200 to be described below is accommodated in this gap and moves up and down.

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

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

Specifically, the fixing guide 340 includes a frame coupling portion 342 coupled to the fixing frame 330 and an upper coupling portion 344 fixed to the upper plate 310 or protective cover 320. It may be made, and in the present invention, the case where the lower end of the fixing guide 340, the upper coupling part 344 is fastened to the upper surface of the upper plate 310 is exemplified.

The fixing guide 340 may be provided in plurality, and in the present invention, two fixing guides 340 are installed front and rear at a predetermined distance on the upper side of the upper plate 310 to support the fixing frame 330. foreshadowing that

The fixing assembly 300 may be provided with a sliding rail 350 that supports a floating bracket 560 or a lead nut 530 to be described below in a sliding manner.

Specifically, sliding rails 350 are provided on the upper surface of the fixed frame 330 to have a predetermined length from side to side, and to these sliding rails 350, floating brackets 560 or lead nuts 530 to be described below are provided. It can be installed so that it can move left and right.

A moving control means 500 may also be provided on the upper side of the fixed frame 330 .

The moving control unit 500 includes a motor 510 generating rotational power, a lead screw 520 provided on one side of the motor 510 and rotating in conjunction with rotation generated by the motor 510, and , the lead screw 520 and the lead nut 530 fastened by screwing.

The motor 510 generates rotational power, and a stepping motor or the like may be used for precise rotation control. Such a stepping motor may be capable of supplying forward and reverse rotational motion according to a rotational angle through pulse control.

As shown, the lead screw 520 has a male screw formed on an outer surface of a thin cylinder having a predetermined length, and a lead nut 530 having a female screw corresponding to the male screw of the lead screw 520 is fastened thereto. Accordingly, when the lead screw 520 is rotated by the power of the motor 510, the lead nut 530 moves left and right along the lead screw 520. As such, the lead screw 520 and the lead nut 530 (Nut) play a role of changing forward/reverse rotational motion into linear motion.

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

The connection coupling 540 is used for the purpose of reducing power loss due to concentricity error between the shaft of the motor 510 and the shaft of the lead screw 520 and smoothing the rotation, and is a flexible coupling. coupling) is preferably used. That is, as the connection coupling 540, an MST or MSTS type flexible coupling may be used.

The motor 510 is installed on a fixing bracket 550 fixedly mounted to the fixing assembly 300, and the lead nut 530 is attached to a floating bracket 560 movably installed on the fixing assembly 300. can be fitted

Specifically, the fixing frame 330 is spaced apart from the upper side of the upper plate 310 by the fixing guide 340, and a gap of a certain size is formed between the fixing frame 330 and the protective cover 320. formed to form a moving passage of the heater housing 220 to be described below.

Also, a fixed bracket 550 and a floating bracket 560 are provided on the upper side of the fixing frame 330 of the fixing assembly 300, respectively. As shown, the fixing bracket 550 is fixedly mounted on the upper surface of the fixing frame 330, and the floating bracket 560 is close to or closer to the fixing bracket 550 on the upper side of the fixing frame 330. It is installed flexibly so as to move away from it.

As described above, the sliding rail 350 is fixedly installed on the upper surface of the fixed frame 330, and the sliding member 352 supporting the floating bracket 560 slides on the sliding rail 350. Possibly can be provided.

As shown, on the upper side of the sliding rail 350, a sliding member 352 in the shape of a square plate is installed to slide left and right, and the floating bracket 560 is fixed to the upper surface of the sliding member 352, It can move left and right.

The motor 510 is mounted on the fixed bracket 550, and the lead nut 530 is mounted on the floating bracket 560. Therefore, when the lead screw 520 rotates according to the rotation of the motor 510 mounted on the fixed bracket 550, the lead nut 530 moves left and right, so that the floating bracket 560 moves to the sliding position. It flows left and right along the rail 350.

An upper end of a link of the link assembly 400 is rotatably installed in the fixed bracket 550 and the floating bracket 560 . That is, when the left and right upper ends of the 'X' shaped links provided in the link assembly 400 are connected to the fixed bracket 550 and the floating bracket 560, respectively, the left and right movement of the floating bracket 560 According to this, since the left and right upper ends of the 'X'-shaped links are closer to or farther apart from each other, the moving assembly 200 fixed to the lower end of the link assembly 400 moves up and down.

A protection bracket 360 and a positioning bracket 380 may be further provided on the upper side of the fixing frame 330 of the fixing assembly 300 .

As shown, the protection bracket 360 may be provided on an upper surface of the left end of the fixing frame 330, and includes a protection having a sensing function to protect parts from interference of the heater 210 and food. A switch 370 or the like may be installed.

As shown, the positioning bracket 380 may be provided on the upper surface of the right end of the fixing frame 330, which allows the moving assembly 200 to be returned to its original position or to sense its original position. A position switch 390 or the like may be installed.

The protective cover 320 is provided with a plurality of guide members 322 for guiding the vertical flow of the moving assembly 200 . As shown, four guide members 322 may be provided near the corners of the square-shaped protective cover 320, respectively, and these guide members 322 are the heater housing 220 to be described below. When passing through the gap between the fixing frame 330 and the protective cover 320, it serves to support the protective cover 320 so as not to interfere with it.

The moving assembly 200 may include a heater housing 220 that surrounds and protects the heater 210 and an insulating member 230 provided at one end of the heater housing 220 to block heat or electromagnetic waves. can

As shown, the heater housing 220 may be formed in a rectangular box shape, and one or more holes through which hot air from the heater 210 may pass may be vertically formed on a bottom surface.

The heater housing 220 may flow vertically through a gap between the fixing frame 330 and the protective cover 320 . Accordingly, the heater housing 220 has a rectangular box shape with an open top and a predetermined thickness. It is preferable that the thickness of the four sides of the heater housing 220 is smaller than the size of the gap between the fixing frame 330 and the protective cover 320 .

A guide groove 222 in which the fixing guide 340 is selectively accommodated may be formed in the heater housing 220 . That is, as shown, guide grooves 222 recessed to have a predetermined length from the top to the bottom are formed on the left and right sides of the heater housing 220, and the moving assembly 200 is formed in these guide grooves 222. When ascending, the frame coupling part 342 of the fixing guide 340 is accommodated.

As shown in the drawing, the insulating member 230 is preferably formed to have a square shape, and a side end is preferably formed to protrude outward more than a side end of the heater housing 220 . That is, the outer size of the insulating member 230 is formed to be larger than the side size of the heater housing 220 so that when the moving assembly 200 is elevated, the gap between the fixed frame 330 and the protective cover 320 is increased. Through this, it can play a role in blocking electromagnetic waves from leaking to the outside.

A seating groove 232 in which a lower end of the heater housing 220 is seated may be recessed downward on an upper surface of the insulating member 230 .

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

The heater 210 may be formed long in the left and right or front and back, and it is preferable that a plurality of heaters 210 are provided and installed at the inner lower end of the heater housing 220 .

Heater brackets 212 are provided at both ends of the plurality of heaters 210 to guide installation of the heaters 210 or supply of power to the heaters 210 .

A pair of support ends 240 symmetrical to each other may be provided at the inner lower end of the heater housing 220 , and these support ends 240 may support the plurality of heaters 210 .

Meanwhile, the support end 240 may support the lower end of the link assembly 400 . That is, the upper end of the support end 240 may be coupled to the lower end of the link assembly 400 . Accordingly, the moving assembly 200 can move up and down while being fixed to the lower end of the link assembly 400 .

A heater cover 250 covering the upper part of the heater 210 may be further provided on the 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. there is.

The link assembly 400 has a configuration including one or more links, and preferably has an upper end rotatably connected to the fixed assembly 300 and a lower end rotatably connected to the moving assembly 200 .

The link assembly 400 may be composed of a pair of front links 410 and 420 and rear links 430 and 440 installed at a predetermined distance in front and back, and the lower ends of the front links 410 and 420 and the rear links 430 and 440 are A link frame 450 coupled with the moving assembly 200 may be further provided.

In addition, it is preferable that at least one of the left and right lower ends of the front links 410 and 420 and the rear links 430 and 440 be movably installed while being coupled to the link frame 450 .

Specifically, the pair of front links 410 and 420 are coupled so that the front 1 link 410 and the front 2 link 420 forming an 'X' shape cross rotatably about the center of each other. The pair of rear links 430 and 440 are coupled such that the rear 1 link 430 and the rear 2 link 440 forming an 'X' shape cross rotatably about the center of each other.

The lower ends of the front 1 link 410 and the rear 1 link 430 installed at a predetermined distance from each other can be connected by a connecting link 460, and the front 2 links 420 and the rear 2 links 440 The bottom of can also be connected to each other by the connection link (460).

At least one of the left and right lower ends of the front links 410 and 420 and the rear links 430 and 440 is preferably installed movably while being coupled to the link frame 450. In the present invention, as shown, the front 1 link 410 and the lower end of the rear 1 link 430 are exemplarily installed to be movable to the left and right of the link frame 450.

Therefore, it is preferable that a 1-link protruding hole 452 is formed in the left half of the link frame 450 to guide the lower shafts of the front 1-link 410 and the rear 1-link 430 to be inserted so that the left and right rolls are possible. .

The link frame 450 may further include a positioning member 470 for detecting the return of the moving assembly 200 to the original position. The positioning member 470 may be formed to protrude upward from the upper surface of the link frame 450 to a predetermined height, and the upper end of the positioning member 470 may selectively interfere with the position switch 390. .

On one side of the fixed assembly 300, a home position detecting means for detecting the original position of the moving assembly 200, and a device for detecting whether or not the lower end of the moving assembly 200 is in contact with food inside the cooking chamber 12 A contact sensing means may be provided.

The original position detecting means detects whether or not the movement of the moving assembly 200 to the upper side inside the cooking chamber 12 is completed, and may include the position switch 390 or the like.

The contact detecting means is for detecting whether the lower end of the moving assembly 200 equipped with the heater 210 is in contact with food, and may be composed of the protection switch 370 or the like.

15 to 24 show examples of each part constituting the flow heater system 100 in detail.

First, FIG. 15 is 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 this, the upper plate 310 has a square flat plate shape, and an upper hole 312, which is a square hole of a predetermined size, is formed inside to penetrate vertically. This upper hole 312 becomes a passage through which the moving assembly 200 moves up and down. Therefore, it is preferable that the inner size of the upper hole 312 is larger than the outer size of the heater housing 220 .

A plurality of choke pieces 314 are formed on the upper plate 310 . That is, as shown, a plurality of choke pieces 314 vertically bent upward are formed extending upward on the inner circumferential surface of the upper plate 310 having a square frame shape.

Specifically, a plurality of chalk pieces 314 protruding upward are formed on the edge of the upper hole 312 formed in the central portion of the upper plate 310, and these chalk pieces 314 are formed in the cooking chamber 12 It serves to block internal electromagnetic wave leakage.

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

As shown in the central portion of the protective cover 320, a protective hole 325 corresponding to the upper hole 312 is formed to penetrate vertically, allowing the heater housing 220 to move up and down.

As shown, the protective cover 320 is preferably formed to be stepped, so that the height of the inner rim is higher than that of the outer rim.

Specifically, the protection cover 320 includes a protection step portion 324 formed to have '┏' and '┓' shaped cross sections (when viewed from the front or rear or left and right), and the lower end of the protection step portion 324. It may be composed of a protective lower portion 326 vertically bent and extended from the side and a protective upper portion 328 vertically bent and extended upward from the inner rim of the protective stepped portion 324.

A choke piece 314 of the upper plate 310 may be accommodated below the protective stepped portion 324 .

As shown, the fixing frame 330 may be formed to have a '∩'-shaped cross section (when viewed from the side). Therefore, the fixing frame 330 may be composed of a flat plate-shaped horizontal end 332 having a predetermined thickness, and a vertical end 334 extending by being vertically bent downward from the front and rear ends of the horizontal end 332. there is.

A pair of link passage holes 336 are vertically formed through the horizontal end 332 . The link passage hole 336 is preferably formed to have a predetermined length in left and right directions, where the link assembly 400 serves as a passage through which a link passes. That is, the pair of front links 410 and 420 and the rear links 430 and 440 are installed or passed through the link passage hole 336 so as to vertically pass through.

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

As shown, the guide member 322 includes a roller 322a selectively contacting the outer surface of the heater housing 220, a roller shaft 322b serving as a rotational center of the roller 322a, and the roller 322b. (322a) or a roller support portion (322c) for rotatably supporting the roller shaft (322b) and a roller fixing end (322d) bent and extended from the lower end of the roller support portion (322c) and closely fixed to the protective cover (320). etc. can be made.

The roller 322a may have a cylindrical shape or a cylindrical shape, and may be made of an elastic material such as rubber. Also, the roller 322a may be rotatably connected to the roller shaft 322b, or the roller 322a and the roller shaft 322b may be fixed. When the roller 322a and the roller shaft 322b are fixed or integrally formed, the roller shaft 322b should be rotatably connected to an upper end of the roller support part 322c.

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

The roller fixing end 322d extends from the roller support part 322c and may be bent to be perpendicular to the roller support part 322c or to have a predetermined inclination.

The roller fixing end 322d is preferably fixedly mounted on the upper surface of the protective step 324 of the protective cover 320 . In this case, the end (inner end) of the roller 322a partially protrudes into the protective hole 325 of the protective cover 320 to close the gap between the protective cover 320 and the fixing frame 330. It comes into contact with the outer surface of the heater housing 220 passing therethrough.

17 shows the moving control unit 500 in an exploded perspective view.

As shown in this, it is preferable that the lead screw 520 of the moving control means 500 is formed long to the left and right, and a screw thread is formed on the outer circumferential surface. In addition, an insertion protrusion 522 protruding to the right is formed at the right end of the lead screw 520 , and the insertion protrusion 522 can be fitted into a groove in the center of the connection coupling 540 .

The lead nut 530 has a cylindrical shape and is formed to extend vertically with the nut portion 532 through which the lead screw 520 passes, and the nut portion 532 to form the floating bracket 560. ) It may be made of a nut fixing part 534 to be fixed to.

A female screw corresponding to the male screw formed on the outer circumferential surface of the lead screw 520 is formed on the inner circumferential surface of the nut portion 532 of the lead nut 530, so that the lead screw 520 and the lead nut 530 are screwed together. It is preferable to be configured to do so.

As described above, the connection coupling 540 is made of a flexible coupling, and may have a predetermined elasticity from side to side or change a certain amount of length (length reduction and extension) from side to side.

As described above, the motor 510 generates rotational power and provides it to the lead screw 520, and a motor shaft (not shown) of the motor 510 is connected to the coupling 540. It is preferable to be inserted into the groove of the center of the right end and fixed.

18 shows the configuration of the fixing bracket 550 in a perspective view. As shown therein, the fixing bracket 550 is formed to have at least a flat top surface and supports the motor 510 to be seated and fixed therefrom, and the motor seating end 552. A motor fixing end 554 extending vertically upward to support the side surface of the motor 510, and extending upward from the front and rear ends of the motor seating end 552, respectively, to form the front links 410 and 420 and It may be composed of a link fastening end 556 or the like that rotatably supports the top of the rear links 430 and 440 .

Fixed fastening ends 558 may be further formed at the left and right ends of the motor seating end 552 to allow the fixing bracket 550 to be fixedly mounted on the upper surface of the fixing frame 330 by a fastening tool such as a bolt. . As shown, the fixed fastening end 558 may be formed to have a position lower than the height of the motor seating end 552 .

As shown, the motor fixing end 554 may be formed to form a vertical plane, and a motor hole 554a penetrating left and right may be formed therein. The motor hole 554a is formed to have a diameter of a predetermined size, and a motor shaft (not shown) of the motor 510 or a coupling 540 of the motor 510 is accommodated to pass through the motor hole 554a from side to side. It can be.

An upper right link shaft 557 supporting the upper ends of the front 1 link 410 and the rear 1 link 430 to be rotatably connected to each of the pair of link fastening ends 556 protrudes forward and backward, respectively. can be formed

In addition, a reinforcement part 556a protruding forward or backward may be further formed on the front or rear surface of the pair of link fastening ends 556 to reinforce strength.

19 is a perspective view showing the configuration of the floating bracket 560 is shown. As shown therein, it is preferable that the lower surface of the floating bracket 560 is formed to have a square or rectangular cross-section and is tightly fixed to the upper surface of the sliding member 352 .

As shown on the right side of the floating bracket 560, a nut support end 562 is formed to protrude to the right. The nut support end 562 supports the lead nut 530 so that it is seated and fixed. It can be configured to support.

Screw grooves 564 penetrating left and right may be formed in the central portion of the floating bracket 560 to be recessed downward. The screw groove 564 is preferably formed larger than the outer diameter of the lead screw 520, and the lead screw 520 can be accommodated therein.

Upper left link shafts 566 protruding forward and backward are formed on the front and rear surfaces of the floating bracket 560, respectively. The upper left link shaft 566 is a part to which an upper end of a link of the link assembly 400 is rotatably connected together with the upper right link shaft 557 . That is, it is preferable that upper ends of the front 2 links 420 and the rear 2 links 440 are rotatably connected to the pair of upper left link shafts 566 .

In addition, reinforcing parts 566a, such as the reinforcing part 556a formed at the link fastening end 556, may be further formed on the front and rear surfaces of the floating bracket 560 to protrude forward and backward, respectively.

20 is a front perspective view showing the configuration of the protection bracket 360 is shown.

As shown therein, the protective bracket 360 has a protective support portion 362 formed to have a predetermined size and thickness vertically, and is vertically bent from the lower end of the protective support portion 362 to secure the fixed frame 330. It may be composed of a protective fixing end 364 that is closely fixed to the upper surface.

In addition, a protection switch 370 may be installed in the protection support part 362 to detect whether the moving assembly 200 is in contact with food by interfering with the lead screw 520, and for this purpose, the protection support part ( 362 may further include a protection installation end 366 for supporting the protection switch 370.

As shown in the present embodiment, the protective installation end 366 is formed to extend from the rear surface of the protective support part 362 to the rear side to support the protective switch 370.

21 is a front perspective view showing the configuration of the location bracket 380 is shown.

As shown therein, the positioning bracket 380 is vertically bent from the lower end of the positioning support part 382 formed to have a predetermined size and thickness up and down, and the positioning support part 382 to secure the fixed frame 330. It may be composed of a position fixing end 384 that is closely fixed to the upper surface.

Also, a position switch 390 for detecting whether or not the moving assembly 200 has returned to its original position by interfering with the positioning member 470 may be installed in the position support part 382. A position installation end 386 for supporting the position switch 390 and the like may be further provided in the position support part 382 .

As shown in the present embodiment, the positioning end 386 extends from the rear surface of the protective support part 362 to the rear side to support the position switch 390 and the like.

Meanwhile, the positioning bracket 380 may also be combined with the fixing bracket 550. To this end, the bracket coupling end 388 at the left end of the positioning bracket 380 is perpendicular to the positioning support part 382. more can be formed.

22 is an exploded perspective view showing the configuration of the heater housing 220 and the insulating member 230 is shown.

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

As shown, the heater net 224 is preferably configured to have a net shape in which a plurality of upper and lower through holes are formed. This is to ensure that the radiant heat of the heater 210 provided inside the heater housing 220 penetrates the bottom surface of the heater housing 220 and is well transmitted to the lower side.

As shown, the insulating member 230 has an insulating hole 234 penetrating vertically therein so as to have a square frame shape, and the moving assembly 200 is placed back to the top of the cooking chamber 12. In this case, it can play a role of preventing external leakage such as electronic board by shielding the gap between the protective cover 320 and the fixing frame 330.

The size of the insulating member 230 is preferably larger than the inner diameters of the upper hole 312 and the protection hole 325 . That is, the horizontal and vertical external dimensions of the insulating member 230 having a square shape are formed larger than the horizontal and vertical dimensions of the inner diameters of the upper hole 312 and the protection hole 325, so that the moving assembly 200 is installed in the cooking chamber. It is preferable to prevent electromagnetic waves inside the cooking chamber 12 from leaking to the outside by partially overlapping the insulating member 230 and the upper plate 310 when they are placed in the original position at the upper end of the cooking chamber 12 .

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

As shown, the pair of support ends 240 are installed in a shape symmetrical to each other from side to side, and support the plurality of heaters 210 and the like, and at the same time, the moving assembly 200 moves the link assembly 400 ) It is preferable to be configured to be coupled to the bottom of the.

Therefore, the support end 240 supports the heater 210 by protruding upward from one end of the bottom support part 242 closely fixed to the top surface of the bottom surface of the heater housing 220 and the bottom support part 242. It may be composed of a heater seating portion 244 and a link connection portion 246 formed by being vertically bent upward from the other end of the bottom support portion 242 to extend.

As shown, the link connection part 246 may be formed to have a size larger than the vertical height of the heater seating part 244, and the link of the link assembly 400 is at the top of the link connection part 246. The lower surface of the frame 450 may be tightly fixed.

One or more grooves through which the heater 210 passes or is supported may be formed in the heater mounting portion 244 so as to collide downward, and the heater bracket 212 may be fixed.

24 is an exploded perspective view showing the main configuration of the link assembly 400 is shown.

As shown therein, the front 1 link 410 and the front 2 link 420 rotatably cross each other in an 'X' shape centered on each other, and the rear 1 link 430 and the rear 2 link 440 intersect each other rotatably in an 'X' shape centered on each other.

Accordingly, a link center shaft 412 and a link center hole 422 formed in corresponding shapes and rotatably coupled to each other are formed at the central portions of the front 1 link 410 and the front 2 link 420, respectively. As shown in the present invention, the link center axis 412 is formed in the front 1 link 410, and the link center hole 422 is formed in the front 2 links 420. . That is, the link center axis 412 is formed to protrude forward or rearward from the front or rear center of the front 1 link 410, and the link center hole 422 is formed to protrude forward or backward from the center of the front 2 link 420. It is formed to penetrate, so that the link center axis 412 of the front 1 link 410 can be inserted into the link center hole 422 of the front 2 link 420 and installed rotatably.

Similarly, a link center shaft 412 and a link center hole 422 rotatably coupled to each other are formed in the central portions of the rear 1 link 430 and the rear 2 link 440, respectively. As shown in the present invention, the link center axis 412 is formed in the rear 1 link 430, and the link center hole 422 is formed in the rear 2 links 440. .

At the upper ends of the front 1 link 410 and the rear 1 link 430, 1 link holes 414 penetrating back and forth are formed, respectively, and in these 1 link holes 414, the upper link shaft of the fixing bracket 550 ( 557) is rotatably inserted and engaged.

Two link holes 424 penetrating back and forth are formed at the upper ends of the front two links 420 and the rear two links 440, respectively. In these two link holes 424, the upper left link shaft of the floating bracket 560 ( 566) is rotatably inserted and engaged.

At the lower ends of the front 1 link 410 and the rear 1 link 430, a 1-link protrusion 416 may be formed to protrude forward or backward, and this 1-link protrusion 416 may be formed to protrude forward or backward. Connected.

At the lower ends of the front two links 420 and the rear two links 440, two-link protrusions 426 may be formed to protrude forward or backward, and these two-link protrusions 426 may be formed to protrude forward or backward. Connected.

As shown, the link frame 450 includes a bottom portion 454 made of a flat plate having a predetermined thickness, and a link connection end 456 formed by bending vertically upward from the front and rear ends of the bottom portion 454 and extending therefrom. ), etc.

The lower ends of the front 1 link 410 and the rear 1 link 430 and the lower ends of the front 2 links 420 and the rear 2 links 440 may be rotatably connected to the link connection end 456, respectively. .

As shown, the left half of the link connection end 456 has a 1-link protrusion hole 452 in which a 1-link protrusion 416 formed at the lower ends of the front 1-link 410 and the rear 1-link 430 is accommodated. ) is formed to penetrate from front to back.

As shown, the one-link protrusion hole 452 is preferably formed to have a predetermined length left and right, so that the one-link protrusion 416 can move left and right while being accommodated in the one-link protrusion hole 452. do.

1-link protrusion grooves 452a recessed downward may be formed at both left and right ends of the 1-link protrusion hole 452, respectively. The 1-link protrusion groove 452a allows the moving assembly 200 to temporarily maintain a stopped state after moving up and down, and is a place where the 1-link protrusion 416 can temporarily stay.

As shown, the right half of the link connection end 456 has a 2-link protrusion hole 458 in which a 2-link protrusion 426 formed at the lower ends of the front 2-link 420 and the rear 2-link 440 is accommodated. ) is formed to penetrate from front to back.

According to this configuration, the 2-link projection 426 maintains a state accommodated in the 2-link projection hole 458, and the 1-link projection 416 moves left and right while being accommodated in the 1-link projection hole 452. Since it is movable, the lower ends of the front 1 link 410 and the rear 1 link 430 may be closer or farther from the lower ends of the front 2 links 420 and the rear 2 links 440, so that the link connection end ( 456) can move up and down.

Meanwhile, it is preferable that the height at which the heater 210 descends inside the cooking chamber can be arbitrarily set. That is, the height at which the heater 210 descends inside the cooking chamber or the height at which the heater 210 is positioned when cooking inside the cooking chamber can be set by a user or a designer. That is, it is preferable that the heater 210 descending inside the cooking chamber by the rotation (normal rotation or reverse rotation) of the motor 510 or the descending height of the moving assembly 200 in which the heater 210 is installed can be set by a user or the like. do.

Also, the height at which the heater 210 or the moving assembly 200 descends inside the cooking chamber may be set to 2 or more. That is, the height at which the heater 210 or the moving assembly 200 descends is set in advance, and the user selects the set position to automatically lower the heater 210 or the moving assembly 200 to the set height to perform cooking. will be able to do it

25 and 26 show a state in which the link assembly 400 moves up and down by the rotation of the motor 510 . That is, FIG. 25 is a perspective view showing a coupled state of the link assembly 400 and the moving control means 500, and FIG. 26 shows a state where the heater 210 is located at a specific height inside the cooking chamber. . 26(a) is a front view showing the state of the link assembly 400 when the heater 210 and the moving assembly 200 are in their original position at the upper part of the cooking chamber, and FIG. 26(b) shows the heater 210 and the moving assembly ( 200) is a front view showing the state of the link assembly 400 when it descends to the first position inside the cooking chamber, and FIG. 26(c) shows the heater 210 and the moving assembly 200 at the second position inside the cooking chamber. It is a front view showing the state of the link assembly 400 when it descends.

As shown in FIG. 26, when the link assembly 400 is operated by the rotation of the motor 510, the moving assembly 200 coupled to the link frame 450 of the link assembly 400 moves inside the cooking chamber. It flows up and down, and eventually the heater 210 flows up and down inside the cooking chamber to reach a specific position so that cooking can be performed.

For example, FIG. 26(a) shows a state in which the upper and lower ends of the respective links are close to each other, which may indicate a state in which the heater 210 and the moving assembly 200 are positioned at the upper end inside the cooking chamber. there is. That is, it may be the case that the height at which the heater 210 and the moving assembly 200 descend into the cooking chamber is 0 mm.

26(b) may show a state in which the heater 210 and the moving assembly 200 reach the first position set by the designer or the user. That is, it may be the case that the height at which the heater 210 and the moving assembly 200 descend into the cooking chamber is 46 mm. In this way, when the heater 210 descends inside the cooking chamber, cooking efficiency can be improved by being closer to the food.

26(c) may show a state in which the heater 210 and the moving assembly 200 reach the second position set by the designer or the user. That is, it may be the case that the height at which the heater 210 and the moving assembly 200 descend into the cooking chamber is 92 mm. Of course, the descending height should be set smaller than the height inside the cooking chamber. As such, when the heater 210 descends to the lower end of the inside of the cooking chamber, cooking efficiency can be improved by being closer to food.

Once the set height is reached and cooking is performed, the heater 210 and the moving assembly 200 must rise again to the top of the cooking chamber and return to their original position. At this time, the heater 210 or the moving assembly 200 must return to its original position Sensing may be accomplished by in situ sensing means.

27 and 28 show the configuration and installation state of the home position detecting means for detecting whether the heater 210 or the moving assembly 200 is located in the original position. That is, FIG. 27 is a partial cross-sectional view showing a state in which the in-situ sensing means is installed on one side of the case 10, and FIG. 28 is a partially enlarged view showing the configuration and operating state of the in-situ sensing means.

As shown in these figures, the flow heater system 100 may be provided with an in-situ detection means 395 for detecting whether or not the heater 210 is located in the in-situ position.

The home position detecting means 395 includes a position switch 390 provided on one side of the flow heater system 100 and a position lever 394 for selectively pressing the position button 392 of the position switch 390. and a positioning member 470 that selectively pushes the positioning lever 394 according to the vertical movement of the heater 210.

As described above, the position switch 390 may be installed on the position bracket 380, and the position lever 394 may also be installed on the position bracket 380. Of course, the position lever 394 may be installed at a location other than the position bracket 380, but in the present invention, as shown, the position lever 394 is installed vertically together with the position switch 390 on the position bracket 380. case is exemplified.

As described above, the positioning member 470 may be installed in the link assembly 400 . That is, the positioning member 470 is formed to protrude upward from the upper surface of the link frame 450 to a predetermined height so that the upper end can selectively interfere with the position switch 390 . Of course, such a positioning member 470 may also be installed on the moving assembly 200 in addition to the link frame 450 .

The position lever 394 may be formed to have elasticity due to its own material or shape. That is, the position lever 394 is formed to have a predetermined length, and may have elasticity or be made of an elastic material so that bending may occur due to the shape of the position lever 394 having a predetermined length.

Also, the position lever 394 may have a shape bent one or more times as shown.

Specifically, in the position lever 394, a contact end 394a for directly or indirectly pressing the position button 392 of the position switch 390 and one end of the position member 470 selectively come into contact with each other. The interference part 394b, the connection part 394c provided between the contact end 394a and the interference part 394b, the fixing part 394d fixedly mounted to the positioning bracket 380, and the fixing part ( 394d) and the coupling portion 394e connecting the interference portion 394b.

As shown, the contact end 394a is formed at the end (right end in FIG. 28) of the position lever 394, and is a position button 392 provided in the position switch 390 or will be described below. The guide lever 392b is pressed upward (in FIGS. 27 and 28).

As shown, the fixing part 394d may have a circular ring shape, and is fixedly installed to the location bracket 380.

The coupling part 394e protrudes from the fixing part 394d to one side (downward right in FIG. 28), and the right end (in FIG. 28) is integrally connected to the interference part 394b.

The interference portion 394b is a portion that selectively directly contacts the upper end of the positioning member 470, and is preferably installed horizontally as shown. This is to enable the upper end of the positioning member 470 to move upward.

The connecting portion 394c extends further to the right from the right end of the interference portion 394b, and is preferably bent at a predetermined angle with the interference portion 394b. That is, as shown, it is preferable that the right end of the connection part 394c is positioned above the left end (in FIG. 28).

As shown, the contact end 394a may be integrally formed at the end (right end in FIG. 28) of the connection part 394c, and is formed so as to be horizontal to hold the position button 392 or the guide lever 392b. It is preferably configured to be easily pushed upward.

Preferably, a micro switch is used as the position switch 390. Accordingly, the position switch 390 may include one or more terminals 392a and a position button 392. The position button 392 is commonly called an actuator, and is a mechanism that directly or indirectly receives an external force to operate a switch and transmits the operation to the inside to open and close the switch.

The position switch 390 may further include a guide lever 392b installed to have elasticity and directly contact the position button 392 . This guide lever (392b) is formed to have a predetermined length, it is preferably made of a metal material or the like to have elasticity.

In this way, when the guide lever 392b is provided in the position switch 390, the contact end 394a of the position lever 394 does not directly press the position button 392 but presses the guide lever 392b. can do.

As such, when the position switch 390 does not have the guide lever 392b, the position lever 394 may be configured to directly press the position button 392, and the position switch 390 may When there is a guide lever 392b, the position button 392 may be pressed by the guide lever 392b by allowing the position lever 394 to press the guide lever 392b.

The moving assembly 200 and the heater 210 described above can move up and down inside the cooking chamber by the rotation of the motor 510 constituting the moving control means 500.

Also, the movement of the moving assembly 200 and the heater 210 may be configured to stop when the position button 392 of the position switch 390 is pressed. That is, when the moving assembly 200 and the heater 210, which have descended into the cooking chamber, rise, the moving assembly 200 or the positioning member 470 installed in the link assembly 400 also rises together.

Therefore, when the positioning member 470 presses the positioning lever 394 upward, the positioning lever 394 or the guide lever 392b pushes the positioning button 392 upward, thereby The position switch 390 is turned on. When the position switch 390 is turned on, the upper flow of the moving assembly 200 and the heater 210 may be stopped.

Of course, even when the position switch 390 is turned on, the upward movement of the moving assembly 200 may be set to be maintained for a predetermined period of time longer. That is, the motor 510 may be set to be operated for a predetermined period of time even after the position button 392 of the position switch 390 is pressed and turned on, and then stopped. This is to effectively block the gap between the moving assembly 200 and the inner upper surface of the cooking chamber to prevent leakage of microwaves.

Specifically, the cooking appliance according to the present invention is basically configured to enable cooking by microwave waves, and these microwaves cause the moving assembly 200 and the heater 210 to accurately return to their original positions and switch the position switch. It is preferable to set to operate only when 390 is turned on. That is, in order for the microwave to operate in the cooking appliance according to the present invention, it is preferable that the moving assembly 200 or the heater 210 be in the original position.

This is to block leakage of microwaves inside the cooking chamber to the outside. When the moving assembly 200 descends into the cooking chamber, the gap between the moving assembly 200 and the upper plate 310, which is the upper surface of the cooking chamber, is closed. This is because microwaves are leaked to the outside through the

Therefore, in the cooking appliance according to the present invention, when the moving assembly 200 reaches the upper end of the inside of the cooking chamber, the upper plate 310 and the insulating member 230 of the moving assembly 200 come into contact with each other so that the moving assembly 200 and the upper plate 310 come into contact with each other. When the gap between the plates 310 is shielded, microwaves may be set to operate.

Furthermore, even when the position switch 390 is turned on by pressing the position button 392, the moving assembly 200 can be set to move upward by a predetermined distance, which also causes the upper plate 310 and This is to completely block the gap between the moving assemblies 200.

For example, when the gap G between the lower surface of the upper plate 310 and the upper surface of the insulating member 230 of the moving assembly 200 reaches 0.5 mm, the position switch 390 is turned on. setting, and even after the position switch 390 is turned on, the motor 510 is set to additionally rotate by 29°. In this case, the lower surface of the upper plate 310 and the upper surface of the insulating member 230 of the moving assembly 200 are completely in close contact, and leakage of microwaves through the gap G is prevented.

Looking more specifically with reference to the drawing (FIG. 28), when the moving assembly 200 and the heater 210 descend inside the cooking chamber 12, the contact end 394a, which is the end of the position lever 394, It is located at point 'A'.

Then, as the moving assembly 200 and the heater 210 rise, when the upper end of the positioning member 470 pushes the interference part 394b of the positioning lever 394 upward, the positioning lever 394 contacts. Step 394a reaches point 'B' and presses the position button 392 so that the position switch 390 is turned on.

In this state, when the gap G between the lower surface of the upper plate 310 and the upper surface of the insulating member 230 reaches 0.5 mm, and the motor 510 additionally rotates 29° in succession, the The upper end of the positioning member 470 pushes the interference part 394b of the positioning lever 394 upward by a predetermined height, so that the gap G between the upper plate 310 and the insulating member 230 is almost zero ( 0) becomes

And, when the guide lever 392b is provided, the contact end 394a of the position lever 394 presses the position button 392 through the guide lever 392b instead of directly pressing the position button 392. will be pressed

Hereinafter, the operation of the cooking appliance according to the present invention having the above configuration will be described with reference to the drawings.

First, as shown in FIG. 1, before cooking starts in a state where the flow heater system 100 is installed on the upper surface of the case 10, as shown in FIGS. 2 to 7, the moving assembly 200 of the flow heater system 100 It is located at the upper end of the cooking chamber 12.

Therefore, at this time, since the moving assembly 200 is raised upward, the 1 link protrusion 416 of the front 1 link 410 and the rear 1 link 430 is the 1 link protrusion hole of the link frame 450 ( 452) is located at the left end.

In this state, when the lead nut 530 gradually moves to the right according to the rotation (normal rotation) of the motor 510, the top of the front 1 link 410 and the front 2 link 420 and the rear 1 Since the upper ends of the link 430 and the rear two links 440 gradually come closer, the moving assembly 200 moves to the lower side of the cooking chamber 12 .

Meanwhile, when the moving assembly 200 descends inside the cooking chamber 12 and collides with food inside the cooking chamber 12, since the moving assembly 200 cannot descend any further, the lead nut 530 is bound In this way, when the movement of the lead nut 530 is stopped while the motor 510 continues to rotate forward, a tensile force is generated in the connection coupling 540 according to the rotation of the lead screw 520. Thus, the left end of the lead screw 520 extends to the left.

When the left end of the lead screw 520 moves to the left by a predetermined distance, the rotation of the motor 510 is stopped by operating the protection switch 370 installed adjacent to the lead screw 520 . Through this process, damage to parts such as the connection coupling 540 as well as food inside the cooking chamber 12 is prevented.

Of course, at this time, it may also be possible to control the motor 510 to directly rotate in reverse so that the moving assembly 200 ascends.

The moving 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 inside of the cooking chamber 12 is shown in FIGS. 8 to 11 .

At this time, the 1 link protrusion 416 of the front 1 link 410 and the rear 1 link 430 is located at the right end of the 1 link protrusion hole 452 of the link frame 450.

When the moving assembly 200 descends inside the cooking chamber 12, the heater 210 comes close to the food inside the cooking chamber 12, so that the food can be cooked more quickly.

When cooking is completed in this state, the moving assembly 200 must rise and return to its original position. In order to raise the moving assembly 200, the motor 510 must be controlled to rotate in reverse, and when the lead nut 530 gradually moves to the left by the reverse rotation of the motor 510, the front The upper ends of the 1 link 410 and the front 2 links 420 and the upper ends of the rear 1 link 430 and the rear 2 links 440 gradually move away from each other, so that the moving assembly 200 moves along the upper side of the cooking chamber 12. Move to and return to the original position.

Whether or not the moving assembly 200 is raised and returned to its original position can be detected by the positioning member 470 and the position switch 390 or the like. When the distance between the insulating member 230 of the moving assembly 200 and the upper plate 310 is equal to or less than a predetermined distance, the upper end of the positioning member 470 provided in the moving assembly 200 The position switch 390 is operated to control the motor 510 to stop.

Through this control, collision and damage between the upper plate 310 and the insulating member 230 can be prevented, as well as leakage of electromagnetic waves through the gap between the upper plate 310 and the insulating member 230 can be prevented. do.

In addition, the cooking appliance is controlled to use electromagnetic waves only when the moving assembly 200 is returned to its original position by the position switch 390 . Therefore, when the moving assembly 200 descends into the cooking chamber 12, use of electromagnetic waves by the cooking appliance is blocked, thereby preventing leakage of electromagnetic waves.

Specifically, as described above, the microwave is generated only when the moving assembly 200 reaches the top inside the cooking chamber and the upper plate 310 and the insulating member 230 of the moving assembly 200 come into contact with each other. ) is controlled to operate.

When the gap G between the lower surface of the upper plate 310 and the upper surface of the insulating member 230 of the moving assembly 200 reaches 0.5 mm, the position switch 390 is turned on, and the position switch 390 is turned on. Even after the switch 390 is turned on, the motor 510 is further rotated (about 29°) so that the lower surface of the upper plate 310 and the upper surface of the insulating member 230 of the moving assembly 200 are completely It is possible to set the operation of microwaves only when they are in close contact.

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

For example, in the above embodiment, the case in which the positioning member 470 is installed in the link frame 450 is exemplified, but it will also be possible to include such a positioning member 470 in the moving assembly 200. .

10. case 12. galley
14. Front frame 20. Door
30. Support plate 100. Fluid heater system
200. Moving assembly 210. Heater
212. Heater bracket 220. Heater housing
222. Guide groove 224. Heater network
230. Insulation member 232. Seating groove
234. Insulation hole 240. Support end
242. Floor support part 244. Heater seating part
246. Link connection 250. Heater cover
300. Fixed assembly 310. Upper plate
312. Upper hole 314. Chalk piece
320. Protective cover 322. Guide member
322a. roller 322b. roller axis
322c. Roller support 322d. roller fixing end
324. Protection step part 326. Protection lower part
328. Upper part of protection 330. Fixed frame
332. Horizontal end 334. Vertical end
336. Link through hole 340. Fixed guide
342. Frame coupling part 344. Upper coupling part
350. Sliding rail 352. Sliding member
360. Protection bracket 362. Protection support
364. Protection fixing end 366. Protection installation end
370. Protection switch 380. Location bracket
382. Positioning support 384. Positioning end
386. Position installation end 388. Bracket coupling end
390. Position switch 392. Position button
392b. Guide lever 394. Position lever
395. In-situ detection means 400. Link assembly
410. Front 1 link 412. Link central axis
414. 1 link hole 416. 1 link projection
420. Front 2 link 422. Link center hole
424. 2 link hole 426. 2 link projection
430. Rear 1 link 440. Rear 2 links
450. Link frame 452. 1 link projection hole
452a. 1 link projection groove 454. Bottom
456. Link connection end 458. 2 link projection hole
460. Connecting link 470. Absence of location
500. Moving control means 510. Motor
520. Lead screw 522. Insertion protrusion
530. Lead nut 532. Nut part
534. Nut fixing part 540. Connection coupling
550. Fixed bracket 552. Motor seating end
554. Motor fixed end 554a. motor hall
556. Link fastening end 556a, 566a. reinforcement
557. Right-hand link shaft 558. Fixed fastening end
560. floating bracket 562. nut support
564. Screw groove 566. Upper left link axis

Claims (15)

a case in which a cooking chamber is formed;
a door rotatably provided on one side of the case and opening and closing the cooking chamber;
a heater provided on one side of the case and generating heat;
a flow heater system provided on one side of the case and allowing the heater to flow inside the cooking chamber;
and an in-situ detection means provided on one side of the case and detecting whether or not the heater is located in an in-situ position. The method of claim 1, wherein the flow heater system,
A cooking appliance comprising: a moving assembly to which the heater is mounted and protected; a fixed assembly to control the vertical movement of the moving assembly; and a link assembly to allow the moving assembly to be movably connected to the fixed assembly. The method of claim 2, wherein the in-situ detection means,
a position switch provided on one side of the flow heater system;
a position lever provided on one side of the flow heater system and selectively pressing a position button of the position switch;
and a positioning member provided on one side of the flow heater system and selectively pushing the position lever according to the up and down movement of the heater. The method of claim 3, wherein the positioning member,
Cooking appliance, characterized in that provided in the moving assembly or link assembly. The method of claim 3, wherein the position lever,
A cooking appliance characterized in that it is formed to have elasticity by its own material or shape. The method of claim 3, wherein the position lever,
A cooking appliance characterized in that it has a shape bent at least once. The method of claim 6, wherein the position lever,
A contact end for directly or indirectly pressing the position button of the position switch;
The cooking appliance characterized in that it comprises an interference portion selectively contacting one end of the positioning member. The method of claim 7, wherein between the contact end and the interference part,
The cooking appliance, characterized in that further provided with a connecting portion bent at a predetermined angle with the interference portion. The method of claim 3, wherein the position switch,
A guide lever installed to have elasticity and directly contacting the position button is further provided;
The cooking appliance, characterized in that the contact end presses the guide lever. The method of claim 3, wherein in the fixing assembly,
and a moving control means for forcing the moving assembly to move up and down by control of the link assembly. 11. The cooking appliance according to claim 10, wherein the moving control means includes a motor that generates rotational power, and the moving assembly moves up and down by rotation of the motor. The method of claim 11, wherein the moving assembly,
The cooking appliance, characterized in that stopped when the position button of the position switch is pressed. The method of claim 11, wherein the motor,
The cooking appliance, characterized in that the position switch of the position switch is pressed and turned on, and then continues to operate for a predetermined period of time and then stops. The cooking appliance according to claim 1, wherein the height at which the heater descends inside the cooking chamber can be arbitrarily set. The cooking appliance according to claim 1, wherein the height at which the heater descends inside the cooking chamber is set to 2 or more.

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