KR100420335B1 - Heat blocking structure of toaster door for microwave oven having toaster - Google Patents

Abstract

The present invention relates to a toaster door thermal insulation structure of a microwave oven for toaster. Toaster door 40 of the present invention is largely composed of a door panel 41, a door frame 45 and a door protector (48). The door panel 41 forms a front surface of the toaster door 40, and a handle 41 ′ is formed at an upper end of the toaster door 40, and a hinge pin 41h rotatably connected to the toaster panel 32 is formed at the lower end of the door panel 41. Is formed. A support 42 for supporting the door frame 45 is formed on the rear surface of the door panel 41, and a hook 42 ′ for assembling the door frame 45 is formed on the support 42. The door frame 45 is formed so that the frame surface 45 'forming the rear surface of the toaster door 40 is relatively protruded, and the edge end 47 seated on the support 42 surrounding the edge is stepped. Is formed. Connection hooks 46 for connecting to the connection lever 76 are formed at both lower ends of the door frame 45. The door protector 48 is to be formed of a heat insulating material. The hook groove 48h of the side surface is formed, and the hook protrusion 44 formed on the inner surface of the rear side wall of the door panel 41 is seated and fastened to the door panel 41. According to the present invention, thermal damage of the toaster door 40 is prevented, and the assembling work is simplified.

Description

Heat blocking structure of toaster door for microwave oven having toaster}

The present invention relates to a toaster combined microwave oven, and more particularly, to a heat insulation structure of the toaster door installed to open and close to one side of the front of the microwave oven to selectively communicate the inside of the toaster with the outside.

A general microwave oven is an apparatus for heating a heating object using a microwave. Looking at the configuration, the cooking chamber 2 is provided inside the cavity assembly (1), the cooking chamber 2 is cooking while heating the food is supplied, the cooking chamber 2 is configured to be opened and closed by the door (4). .

On the one side (right side in the drawing) of the cooking chamber 2, an electrical equipment chamber 10 in which various electronic components for generating microwaves is provided is provided, and the electrical equipment chamber 10 is formed by an external casing 6. It is configured to be shielded. Inside the electric compartment 10, a magnetron 12 for oscillating microwaves, a high pressure transformer 14 for applying high pressure to the magnetron, and an air flow for cooling the electric parts and passing through the inside of the cooking chamber 2. A blowing fan 16 or the like for forming the air is provided.

Such a microwave oven is not suitable for performing a function as a toaster for baking bread because heating is performed using microwaves. In the microwave oven which is an apparatus for heating food, it is natural that it is more preferable to have a toaster function which can bake bread.

In order to meet such a demand, a microwave oven in which a toaster is provided so that an inlet is provided in the front of the electric compartment 10 has been disclosed. A door is installed at the inlet of the toaster to selectively shield the inside of the toaster.

However, the prior art as described above has the following problems.

The door shields the inlet of the toaster, which during baking is very hot inside the toaster. Therefore, the heat inside the toaster is transferred to the door, which causes a problem that the front of the door is damaged.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, and to prevent the toaster door from being affected by heat in a microwave oven.

Another object of the present invention is to be able to assemble the toaster door without a separate fastener.

1 is an exploded perspective view showing the internal configuration of a typical microwave oven.

Figure 2 is an exploded perspective view showing the configuration of a microwave oven toaster combined with a preferred embodiment of the toaster door insulation structure according to the present invention.

Figure 3 is an exploded perspective view showing the configuration of a toaster having a toaster door insulation structure of the embodiment of the present invention.

Figure 4 is an exploded perspective view showing the configuration of the toaster door of the embodiment of the present invention.

Figure 5 is a schematic cross-sectional view showing the configuration of a toaster provided with an insulating structure of the embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

20: Cavity Assembly 21: Front Plate

22: cooking room 23: battlefield

24: kitchen door 25: handle

27: Outcase 30: Toaster

32: toaster panel 33: mounting ring

34: hinged hole 40: toaster door

41: door panel 41h: hinge pin

41 ': Handle 42: Support

43: Hook 43 ': Insertion guide

44: hanger 45: door frame

45 ': Frame surface 46: Hook

47: edge 47 ': assembly cutout

48: door protector 48 ': through hole

49: lever slot 50: toaster case

51: case front plate 52: entrance

53: case back plate 53 ': spring hanger

54: moving slot 60: toaster front

62: inlet 64: lever slot

70: tray support 72: bushing

74: bread tray 76: connecting lever

77: spring hanger 79: spring

80: heater 90: breadboard

92: pedestal handle

According to a feature of the present invention for achieving the object as described above, the present invention includes a cooking chamber for cooking food, and an electrical equipment room in which electrical components for supplying a heat source for heating to the cooking chamber are installed. In the microwave oven to which the toaster is installed in the electrical equipment room exposed to one side of the front surface of the yarn; A door panel having an external appearance and having a handle on the front surface, a door frame made of metal seated on a rear surface of the door panel, and directly closing an entrance of a toaster, between an inner side of a rear edge of the door panel and an edge of the door frame; The door protector is seated on and fastened to the door panel and simultaneously fixed by pressing the door frame. The door protector is formed of an insulating material, and the door is configured to transmit power to feed bread into and out of the toaster in conjunction with the operation of the door panel. It is configured to include a connecting lever connected to the frame.

Both sides of the lower end of the door frame is provided with a connecting hook to the connecting lever.

The connecting hook is formed in a semi-cylindrical shape, and the connecting hole of the connecting lever into which the connecting hook is inserted is formed in an arc shape having a central angle greater than at least 180 °.

According to the present invention having such a configuration, the toaster door is not damaged by heat generated in the toaster, and there is an advantage in that a separate tool is not required for assembling the toaster door.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the toaster door insulation structure of a toaster combined microwave oven according to the invention will be described in detail.

Figure 2 is an exploded perspective view showing the configuration of a microwave oven toaster combined with a preferred embodiment of the toaster door insulation structure according to the present invention. As shown in the drawing, the cooking chamber 22 is formed at one side of the cavity assembly 20, and the electrical equipment chamber 23 is formed at the other side of the cavity assembly 20. Inside the cooking chamber 22, cooking using mainly microwaves is performed. Various electrical components for oscillating the microwave are installed in the electrical equipment room 23. Reference numeral 21 is a front plate and 23 'is a cooling fan that forms a flow of cooling air into the electric compartment 23.

The cooking chamber 22 is selectively opened and closed by the cooking chamber door 24. The cooking door 24 is closed in close contact with the front plate 21 to shield the inside of the cooking chamber 22 from the outside. Reference numeral 25 is a handle for opening and closing the cooking chamber door 24.

Meanwhile, the outer case 27 shields the cavity assembly 20 and the electric compartment 23. The outer case 27 forms the upper surface and both side appearances of the microwave oven in this embodiment.

The toaster 30 is installed inside the electric compartment 23 so as to penetrate the front plate 21 and positioned at the front of the microwave oven. The configuration of the toaster 30 will be described in detail with reference to FIG. 3.

The toaster panel 32 forms the front appearance of the toaster 30. The exterior of the toaster panel 32 is formed of the same material as that of the cooking chamber door 24, and the front surface of the toaster panel 32 is formed to have a continuous surface as shown in FIG. 2. Reference numeral 33 is a mounting ring for mounting on the front plate 21, 34 is a hinge hole.

The toaster panel 32 is provided with a toaster door 40. The door panel 41 constituting the exterior of the toaster door 40 is also formed of the same material as the exterior of the toaster panel 32 and forms a continuous surface. A hinge pin 41h is inserted into the hinge hole 34 at the lower end of the door panel 41 and serves as a rotation center of the toaster door 40. A handle 41 ′ is provided on the front surface of the door panel 41 to handle the toaster door 40.

On the back of the door panel 41, as shown in Figure 4, a configuration for fastening the door frame 45 and the door protector 48 to be described below is provided. First, the support 42 is formed to protrude from the rear surface of the door panel 41. The support 42 is a portion for supporting the door frame 45 is formed to protrude in at least four places. Hooks 42 'are formed at one end of the support 42, respectively. The hook 42 ′ is for temporarily assembling the door frame 45, and the hook 42 ′ extends in the same direction, that is, in the upper direction of the door panel 41.

An insertion guide 43 is formed on an upper rear surface of the door panel 41. The insertion guide 42 is formed to have a predetermined interval between the upper end of the door panel 41, the front end jaw 48j of the door protector 48 to be described below is hooked. A plurality of hooking protrusions 44 are formed on the rear side wall of the door panel 41. The hook protrusion 44 is formed on the inner surface of the side wall and is formed to be inclined from the rear of the door panel 41 toward the rear surface, and a portion facing the rear surface is formed in a plane.

The door frame 45 is seated on the rear surface of the door panel 41. The door frame 45 is formed of a material resistant to heat as a part which contacts the toaster front 60 to be described below and substantially closes the inlet 62 thereof. The frame surface 45 ′ of the door frame 45 is in contact with the toaster front 60 and is formed to protrude from the edge end 47 formed around the edge.

Connection hooks 46 are formed on both side lower ends of the door frame 45 to extend laterally. The connecting hook 46 is formed in a substantially semi-cylindrical shape as one end of the connecting lever 46 to be described below. The toaster door 40 is connected to the connection lever 76 to be described below by the connection hook 46 to control the opening and closing of the toaster door 40 and to allow the inlet and out of bread to be linked.

An edge end 47 surrounding both ends and an upper edge of the door frame 45 is formed. The edge end 47 is seated on the support 42 as a part formed stepped than the frame surface 45 '. Here, a predetermined space is formed between the rear surface of the door panel 41 and the door frame 45 by seating the edge end 47 formed stepwise with the frame surface 45 ′ on the support 42. In addition, the air in this space acts as a heat insulating layer so that heat of the door frame 45 is not transmitted to the door panel 41.

The edge end 47 is formed with an assembly cutout 47 'at a position corresponding to the hook 42' of the support 42. The assembly cutout portion 47 'is a portion formed by cutting the edge end 47, and is formed to be larger than the length of the hook 42'.

The door protector 48 is fastened to the door panel 41 to fix the door frame 45 and to block heat transfer between the door frame 45 and the door panel 41. . To this end, the door protector 48 is formed of a heat insulating material. The door protector 48 penetrates through the center thereof to form a through hole 48 '. The door frame 45 is positioned in the through hole 48 ', and the frame surface 45' of the door frame 45 is exposed to the rear surface of the toaster door 40. A hanger groove 48h is formed at a side surface of the door protector 48 at a position corresponding to the hanger protrusion 44 of the door panel 41. A tip jaw 48j is formed at an upper end of the door protector 48 toward the rear surface of the door panel 41. In addition, lever slots 49 are formed at both ends of the lower end of the door protector 48 through which the connection lever 76 which is connected to the connection hook 46 of the door frame 45 passes.

The toaster case 50 is installed at the rear end of the toaster panel 32. The toaster case 50 is coupled to the toaster panel 32 through one side of the front plate 21 corresponding to the front surface of the electrical equipment room 23. The toaster case 50 is made of metal and forms a space for baking bread therein.

A case front plate 51 forms the front surface of the toaster case 50. The case front plate 51 is formed with an inlet 52 through which bread is introduced into and out of the toaster case 50. A case rear plate 53 forms a rear surface of the toaster case 50. A spring hook 53 'is formed at a lower portion of the case rear plate 53 to extend rearward.

Moving slots 54 are formed at both ends of the lower portion of the toaster case 50 so as to penetrate from the front end toward the rear end. The bushing 72 to be described below is guided and moved along the movable slot 54.

The toaster front 60 is mounted on the case front plate 51 and is located inside the toaster panel 32 and is formed of a metal material. The toaster front 60 is exposed to the outside when the toaster door 40 is opened, and a plurality of rectangular inlets 62 are formed side by side. The inlet 62 communicates with the inlet 52 of the case front plate 51. Lever slots 64 corresponding to the lever slots 49 of the door protector 48 are formed long on both sides of the front lower end of the toaster front 60.

For reference, a protector 65 is installed in a gap between the toaster front 60 and the toaster panel 32. The protector 65 is formed of an insulating material as the door protector 48, and the toaster front 60 is installed. ) To block heat from being transferred to the toaster panel 32.

The tray support 70 is installed inside the toaster case 50. Bushings 72 are installed at both ends of the tray support 70, and the bushing 72 is seated in the movable slot 54 of the toaster case 50 to support the tray support 70. The bread tray 74 is provided on the tray support 70 so that the bread stands vertically. The bread tray 74 is provided with a number corresponding to the inlet 62 is protruded a predetermined length to the outside through the inlet 62 at the time of opening the toaster door 40.

On the other hand, one end of the connecting lever 76 is rotatably connected to the bushing 72 and the other end is rotatably connected to the toaster door 40. The connecting lever 76 penetrates through the lever slot 64 of the case front plate 51 and the toaster front 60 and through the lever slot 49 of the door protector 48 of the toaster door 40. It hangs on the hook 46 of the door frame 45. The connection lever 76 is formed with a connection hole 76 ′ for connection with the connection hook 46. The connecting hole 76 'has an arc shape with a central angle greater than at least 180 degrees. Here, the connection lever 76 is installed adjacent to the side of the toaster case 50, it is formed of a metal material to prevent thermal damage. The connection lever 76 is not connected to the door panel 41 but is connected to the door frame 45 made of metal.

One end of the spring 79 is connected to one end of the connection lever 76, that is, one end connected to the bushing 72. The other end of the spring 79 is hooked to the spring hanger 53 'of the toaster case 50. The spring 79 exerts an elastic force to pull the connecting lever 76 toward the rear end of the movable slot 54. The spring 79 cannot close the toaster door 40 with an elastic force when the toaster door 40 is opened for a predetermined time or more in a relationship between the elastic force and the rotational force according to the weight of the toaster door 40.

Inside the toaster case 50, a heater 80 for generating heat for baking bread is installed. The heaters 80 are respectively installed at positions corresponding to both sides of the bread so as to apply heat to both sides of the bread.

Through the lower part of the toaster panel 32, the breadcrumb 90 is installed in the toaster case 50 so as to be pulled in and out of the drawer type. A pedestal handle 92 is provided at the tip of the breadcrumb 90, and the pedestal handle 92 is seated in a space between the hinge pins 41h of the toaster door 40. The pedestal handle 92 is also formed of the same material as the door panel 41.

Hereinafter, the operation of the toaster door of the microwave oven toaster according to the present invention having the configuration as described above will be described.

In the present invention, the toaster door 40 is seated on the front of the toaster panel 32 as shown in Figure 2 to close the inlet (62). At this time, the surfaces of the toaster panel 32 and the door panel 41 form a plane that is continuous with each other.

Pulling the handle 41 of the toaster door 40 as described above opens the toaster door 40. That is, the hinge pin 41h is rotated about the hinge hole 34 of the toaster panel 32 while the upper end of the toaster door 40 is rotated and opened. At this time, the connection lever 76 connected to the toaster door 40 is pulled by the toaster door 40 and operated while overcoming the elastic force of the spring 79.

As the connecting lever 76 is moved, the bushing 72 connected to the rear end of the connecting lever 76 moves along the moving slot 54 and moves the tray support 70 to the toaster case 50. Move to the tip side. In this case, the tip of the bread tray 74 installed in the tray support 70 protrudes a predetermined length toward the front of the inlet 62.

When bread is placed on the bread tray 74 and the toaster door 40 is closed, the bread tray 74 is interlocked with the operation of the toaster door 40 to enter the toaster case 50 and the heater 80 Located between). And it is baked by the heat generated by the heater (80).

The heat generated from the heater 80 makes the interior of the toaster case 50 to a high temperature, and is transferred to the toaster door 40 through the toaster front 60 and its inlet 62. The heat is transferred to the door frame 45 exposed on the rear surface of the toaster door 40.

However, the door protector 48 is provided between the door frame 45 and the door panel 41 so that heat of the door frame 45 is not transmitted to the door panel 41. Therefore, the door panel 41 is hardly affected by the heat effect inside the toaster 30.

On the other hand, the connecting lever 76 is connected to the toaster door 40 is connected to the connecting hook 46 of the door frame 45. As such, by connecting the connection lever 76 to the metal door frame 45, the heat of the connection lever 76 is not transmitted to the door panel 41 of the toaster door 40. If the connecting hook is formed in the door panel 41, the connecting hook melts by the heat of the connecting lever 76. For reference, the heat transferred to the connection lever 76 is generated in the toaster case 50, and the air flow by the cooling fan 23 ′ for cooling the electric components inside the electric compartment 23 is transferred to the toaster case. It is transmitted to the connecting lever 76 by being formed forward from the rear of the 50.

Next, the assembling of the toaster door 40 of the present invention will be described. First, the door panel 41 is placed so that the rear surface thereof is upward as shown in FIG. 4. The door frame 45 is mounted on the support 42 of the door panel 41. In this case, the hook 42 'of the support 42 is positioned at the assembly cutout 47' of the door frame 45. In this state, the edge 47 at the top of the door frame 45 shields the insertion guide 43.

Next, the door frame 45 is moved in the direction in which the hinge pin 41h is formed. In this case, a portion of the edge end 47 corresponding to one end of the assembly cutout 47 ′ of the door frame 45 is positioned below the hook 42 ′. And the insertion guide 43 that was shielded by the edge end 47 of the top of the door frame 45 is exposed.

In this state, one end is connected to the bushing 72 installed in the toaster case 50, and the other end thereof is connected to the front end of the connection lever 76 protruding through the lever slot 64 of the toaster front 60. Hang on the hook 46 of the frame 45. At this time, the door protector 48 is engaged with the connecting lever 76 such that the lever slot 49 passes through the connecting lever 76.

The door protector 48 is inserted between the rear inner wall of the door panel 41 and the door frame 45 corresponding to the upper edge edge 47 of the door frame 45. The door protector 48 is fixed by the hook protrusion 44 of the door panel 41 being hooked to the hook groove 48h. As described above, the door protector 48 is fixed to the door panel 41, so that the edge end 47 of the door frame 45 is pressed to fix the door frame 45. The tip jaw 48j of the door protector 48 is hooked to the insertion guide 43.

On the other hand, the door panel 41 and the toaster panel 32 are connected before or after the assembly of the door frame 45 and the door protector 48, or before and after the connection of the connecting lever 76 and the door frame 45. Can be done on

Within the scope of the basic technical idea of the present invention as described above, many other modifications are possible to those skilled in the art, and the present invention should be construed by the appended claims. .

The toaster door of the microwave oven according to the present invention as described in detail above is to prevent the connection between the toaster door and the connection lever by the high temperature heat generated in the toaster. To this end, a connecting hook was formed on a metal door frame among the parts forming the toaster door, and the connecting lever was hooked on the connecting hook.

By such a configuration, the heat transmitted through the connection lever does not affect the toaster door, so that the durability of the toaster door is improved and the material selection range of the door panel is increased.

In addition, a door protector made of a heat insulating material was used to prevent the heat of the toaster from being transferred to the door panel forming the exterior of the toaster door, and a metal door frame was installed on the back of the toaster door that shields the entrance of the toaster. Therefore, the toaster door is prevented from being damaged by the heat inside the toaster.

In the present invention, since the tool does not need to be used for the assembly of the door panel, the door frame, and the door protector, the assembly work can be performed more quickly and the effect can be simplified.

Claims (3)

In the microwave oven having a cooking chamber for cooking food, and an electrical equipment chamber is installed, the electrical component for supplying a heat source for heating to the cooking chamber, the toaster is installed in the electrical equipment room exposed to one side of the front of the electrical equipment room; A door panel which forms an exterior and is provided with a handle on the front surface; A metal door frame seated on a rear surface of the door panel and directly closing an entrance of a toaster; A door protector seated between an inner side of a rear edge of the door panel and an edge of the door frame, the door protector is pressed and fixed to the door panel and is fixed by pressing the door frame; Toaster door insulation structure of a microwave oven toaster combined with the operation of the door panel, characterized in that it comprises a connecting lever connected to the door frame to transmit power to feed the bread into and out of the toaster. According to claim 1, Toaster door insulation structure of a microwave oven toaster, characterized in that the lower end of the door frame is provided with a connecting hook to the connecting lever is hooked. The method of claim 2, wherein the hook is formed in a semi-cylindrical shape, the connecting hole of the connecting lever is inserted into the connecting hole of the microwave oven, characterized in that formed in an arc shape having a central angle greater than at least 180 °. Toaster door insulation structure.