KR20080058299A - Control unit of oven and oven comprising the same - Google Patents

Abstract

A control unit of an oven and the oven having the same are provided to attach reflectors and a glass touch by sealing members received in sealing member receiving grooves in order to attach the reflectors with the glass touch accurately. A control unit of an oven comprises a printed circuit board(120), reflectors(170,180), a glass touch(110), and at least one sealing member guiding hole(173). The printed circuit board has at least one LED. The reflectors condense lights of the LEDs. The glass touch is attached to the front of the reflectors. The sealing member guiding holes are arranged to guide extra sealing members among the sealing members for attaching the glass touch to the rear surface of the reflectors. The reflectors and the glass touch are attached by the sealing members received in sealing member receiving grooves(171).

Description

Control unit for oven and oven comprising the same

The present invention relates to an oven, and more particularly, to a control unit for controlling the operation of the oven and an oven comprising the same.

The cooking apparatus is an apparatus for cooking food, which is exemplified by an oven or a hot plate. In particular, the oven provides an internal space in which a high temperature environment is created by resistance heat by electricity or heat generated by gas, and the food is placed therein so that food is cooked.

Electric oven is heating the outside and the inside of the cooking material at the same time, the cooking speed is faster than the gas oven, the thermal efficiency is also high, because the use of electricity is more safety than the gas oven is increasing its use.

In general, the cooking appliance displays various information necessary for cooking such as the type of cooking set by the user, the current temperature, the cooking time, etc. on the front panel of the cooker for various interfaces with the user. The content or type of the above information is determined by the setting of the control unit of the cooking appliance.

The control unit of the cooking appliance is provided with components that can control each part of the oven. The control unit is integrally formed with a printed circuit board (PCB) on which various circuits are formed and a frame on which the printed circuit board is installed. Therefore, since the printed circuit board is composed of circuit elements having heat-sensitive properties, the heat of the oven in a high temperature state directly or indirectly affects the printed circuit board, causing a problem.

By configuring the control unit to protrude upward from one side of the oven, the setting of the control unit so that the heat of the oven does not directly or indirectly affect the control unit has emerged as a recent technical problem.

On the other hand, when assembling the control unit, in the case where the LED reflector is attached to the glasswork, it is difficult to center the display portion of the LED reflector and the glasswork.

When the center of the display unit of the LED reflector and the glasterch does not match, there is a problem that the light quality is not uniform and the emotional quality falls.

In particular, when the buttons of the display unit are densely formed, there is a problem in that a product defect occurs when the center of the display unit of the LED reflector and the glaster tooth is displaced.

The present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a control unit and an oven including the same so that the heat of the oven does not directly or indirectly affect the control unit.

Another object of the present invention is to provide a control unit and an oven including the same, which are configured to be aligned with the center of the display unit of the LED reflector and the glass.

According to an embodiment of the present invention for achieving the above object, the present invention is a printed circuit board on which at least one LED is mounted; A reflector for collecting light of the LED; A glaster tooth attached to the front surface of the reflector; And at least one sealing member guide hole for guiding an extra sealing member of the sealing member for attaching the glaster to the rear surface of the reflector corresponding to the opposite side of the glaster tooth; It includes.

According to another embodiment of the present invention, the present invention provides a frame; A main printed circuit board provided on one surface of the frame; At least one LED printed circuit board provided on the other surface of the frame corresponding to the opposite side of the main printed circuit board and mounted with at least one LED; At least one reflector provided on a front surface of the LED printed circuit board and condensing light of the LED; A glaster that is attached to a front surface of the reflector and receives an operation signal through a capacitive touch method; And a sealing member receiving groove in which a sealing member for attaching the glaster to the front surface of the reflector is accommodated. It includes.

According to another embodiment of the present invention, the present invention is a cavity for receiving food; Out casing surrounding the cavity; A cooktop installed on an upper surface of the outcasing; And a control unit according to any one of claims 6 to 9 installed on an upper surface of the outcasing adjacent to the cooktop. It includes.

According to the present invention, there is an advantage that the reflector and the glaster tooth are more accurately attached.

Hereinafter, with reference to the accompanying drawings an embodiment of the oven according to the present invention will be described in more detail.

1 is a perspective view showing an oven including an embodiment of a control unit according to the present invention, Figure 2 is an exploded perspective view showing an embodiment of the present invention.

Referring to FIG. 1, the oven 1 of the present invention includes a cavity 3 in which food is placed, a door 4 opening and closing the front of the cavity 3, and an upper side of the cavity 3. A cooktop 5 and a control unit 100 protruding to the rear of the cooktop 5 to control the operation of the cooking appliance by the user are included.

The oven 1 has a cavity 3 formed under the cooktop 5 to cook food by heat radiation or tropical flow, and a warm draw formed under the cavity 3 for simple cooking or storage functions. (7) is formed. A door handle 9 for opening and closing the worm draw 7 is formed at the front of the worm draw 7.

The control unit 100 for controlling the operation of the cooking appliance has the appearance of a glaster as the number of consumers who recently determined the durability and high quality of home appliances.

In order to enhance the touch feeling of the glass touch, a capacitive touch screen glass touch using a conductive ITO (Indium Tin Oxide) layer on the back of the glass is used.

Meanwhile, referring to FIG. 2, the control unit 100 includes the glasterch 110, the main printed circuit board 120, the first and second LED printed circuit boards 130, 140, the frame 150, The first and second reflectors 170, 180 and the like.

The glazed tooth 110 may be controlled by the user with the touch of a finger. The touch of the glaster tooth 110 generates a small current and is transmitted to the main printed circuit board 120. The main printed circuit board 120 commands and controls the operation of the oven. In addition, the glaster tooth 110 is coated with a display unit 111 and 113 for checking the operation state of the oven. The display units 111 and 113 include a first display unit 111 displaying an operating state of the oven and a second display unit 113 displaying a state of a cooktop.

The main printed circuit board 120 is installed on the rear surface of the frame 150, and the first and second LED printed circuit boards 130 and 140 are mounted on the front surface of the frame 150. Therefore, substantially, the main printed circuit board 120 is relatively spaced apart from the cooktop 5 relative to the first and second LED printed circuit boards 130 and 140, and at the same time, the frame 150 is located on the frame 150. By heat insulation. This separates the main printed circuit board 120 from the cooktop 5 in which electronic components having a property more vulnerable to heat than the first and second LED printed circuit boards 130 and 140 are mounted. By insulating the frame 150, it is possible to block the heat transferred from the cooktop (5) to the main printed circuit board (120).

A printed circuit board is a circuit board that electrically connects and fixes an electronic component. A plurality of components are densely mounted on a flat plate made of reinforced fiber glass or plastic, and circuits connecting the components are densely packed on the surface of the flat plate. It is a circuit board to fix.

The first and second LED printed circuit boards 130 and 140 are circuit boards electrically connected to lamps, ie, LED elements, which emit light on the printed circuit board. The first and second LED printed circuit boards 130 and 140 emit light by emitting the first and second display parts 111 and 113 of the glaster tooth 110 according to the command of the main printed circuit board 120. The operation state of the oven can be easily understood by the user. The LED emitters formed on the first and second LED printed circuit boards 130 and 140 are very small elements directly coupled to the surfaces of the first and second LED printed circuit boards 130 and 140. (SMD; Surface Mount Device) technology is applied to emit light.

The frame 150 is a plate having a predetermined height, and a predetermined space is formed inside the rear surface. The main printed circuit board 120 is accommodated in the frame 150, and the first and second LED printed circuit boards 130 and 140 are seated on the frame 150.

The display panel 160 is provided at the front of the frame 150. The display panel 160 displays the current operating state of the oven by the signal received from the main printed circuit board 120. The display panel 160 is mounted to the display panel holder 151 formed on the front of the frame 150.

As the display panel 160, a VFD panel having heat resistant characteristics is mainly used. The VFD panel is a self-luminous device that emits electrons emitted from a filament serving as a CRT electron gun at all times by controlling them on a grid electrode and an anode electrode to collide with phosphors on the anode.

The VFD has a merit of obtaining various colors of light and is widely used in a cooking apparatus that cannot use an LCD panel because it can be used in a high temperature environment.

First and second reflectors 170 and 180 that collect LED light are provided on the front surfaces of the first and second LED printed circuit boards 130 and 140. The first and second reflectors 170 and 180 have a function of uniformly distributing the illuminance of the letters and reflecting the LED light so that the letters can be made dark. The first and second reflectors 170 and 180 are connected to the first and second LED printed circuit boards 130 and 140 by hooks to facilitate the assembly of the first and second reflectors 170 and 180. do.

The first reflector 170 is provided with a sealing member receiving groove 171 and a sealing member guide hole 173. The sealing member accommodating groove 171 is a portion in which a sealing member for attaching the first reflector 170 and the glass stud 110 is accommodated. The sealing member receiving groove 171 is formed by recessing a portion of the first reflector 170. The sealing member guide hole 173 is formed by drilling a portion of the first reflector 170. The sealing member guide hole 173 has an extra sealing member remaining after attaching the first reflector 170 and the glaster tooth 110 among the sealing members accommodated in the sealing member accommodating groove 171 to the sealing member accommodating groove ( It is for guiding to the outside of 171, that is, to the back surface of the first reflector 170. In the present embodiment, the sealing member guide hole 173 is formed by drilling a part of the first reflector 170 corresponding to the inside of the sealing member receiving groove 171.

In addition, although not shown, an adhesive tape may be provided between the rear surface of the glaster tooth 110 and the first reflector 170 to temporarily fix both positions.

On the other hand, the side of the frame 150 is provided with an oven support 153 to be coupled to the oven. The support part 153 is formed with a screw hole 155. In addition, the oven mounting portion 11 provided at the rear end of the upper surface of the oven corresponding to the rear of the cooktop 5 is provided with a frame fixing portion 13 in which a screw hole 15 is formed to be coupled to the support portion 153. . The support part 153 and the fixing part 13 are fastened with a screw (S).

Next, the operation of the embodiment of the control unit according to the present invention will be described in more detail with reference to the accompanying drawings.

FIG. 3 is a perspective view schematically illustrating a state in which the first reflector is assembled with the glaster tooth in the embodiment of the control unit according to the present invention, and FIG. 4 is the center of the first reflector and the glaster tooth coincide with each other in the embodiment of the present invention. This is a front view schematically showing the appearance.

Referring to FIG. 3, first, the first reflector 170 and the first LED printed circuit board 130 are coupled to each other to form a single assembly. In addition, the jig 200 is assembled to one end of the glaster tooth 110 to be attached to the glaster tooth 110 on the front surface of the first reflector 170.

The 'a' shape of the jig 50 is formed such that the center of the first display unit 113 of the glaster tooth 110 and the center of the light emitter 131 included in the first LED printed circuit board 130 coincide with each other. The edge of the first reflector 170 is in close contact with the edge portion of the. In this case, the first reflector 170 may be temporarily fixed to the glaster tooth 110 by using an adhesive tape, so that the centers of the first LED printed circuit board 130 and the glaster tooth 110 coincide with each other.

Next, the first reflector 170 is completely attached to the glaster tooth 110 by pressing the rear surface of the sealing member accommodating groove 171 accommodating the sealing member. At this time, the remaining sealing member after attaching the first reflector 170 and the glass stud 110 is external to the sealing member accommodating groove 171 by the sealing member guide hole 173, that is, the first reflector 170. Guided out of). Therefore, the sealing member for attaching the first reflector 170 and the glaster tooth 110 is excessively used, so that the front surface of the first reflector 170 and / or the rear surface of the glaster tooth 110 are the sealing member. Contamination may occur, or the sealing member may be locally concentrated to prevent a phenomenon of lifting between the first reflector 170 and the glaster tooth 110.

Therefore, ultimately, the relative position of the first reflector 170, substantially the first LED printed circuit board 130 and the glaster tooth 110 can be maintained more accurately. More specifically, referring to FIG. 4, the light emitter 131 of the first LED printed circuit board 130 is formed in a state where the glaster tooth 110 is attached to the front surface of the first reflector 170. It can be seen that the center of the first display unit 111 of the glaster tooth 110 coincides with the center thereof. Therefore, the assembly reliability of the control unit 200 can be secured.

Within the scope of the basic technical spirit of the present invention as well as many other modifications are possible to those skilled in the art, the scope of the present invention should be interpreted based on the appended claims. .

In the above-described embodiment, only the case of attaching the first reflector and the touch glass has been described, but the present invention may be applied to the case of attaching the second reflector and the touch glass.

According to the control unit and the oven including the same according to the present invention, the following effects can be expected.

First, in the present invention, attachment of the reflector and the glaster tooth is made more accurately. Therefore, the assembly reliability of the product can be improved.

In addition, in the present invention, the transfer of heat generated in the cooking process of food to the main printed circuit board is minimized. Therefore, the durability and operation reliability of the product can be enhanced.

1 is a perspective view of an oven including an embodiment of a control unit according to the present invention;

Figure 2 is an exploded perspective view showing an embodiment of the present invention.

Figure 3 is a perspective view schematically showing a state of assembling a glaster to the first reflector in the embodiment of the control unit according to the present invention.

4 is a front view schematically showing a state in which the centers of the first reflector and the glaster tooth coincide in the embodiment of the present invention;

Claims (12)

A printed circuit board on which at least one LED is mounted; A reflector for collecting light of the LED; A glaster tooth attached to the front surface of the reflector; And At least one sealing member guide hole for guiding an extra sealing member of the sealing member for attaching the glaster to the rear surface of the reflector corresponding to the opposite side of the glaster tooth; Oven control unit comprising a. The method of claim 1, The sealing member guide hole is a control unit for the oven is formed by drilling a portion of the reflector The method of claim 1, And the reflector and the glaster are attached by a sealing member accommodated in a sealing member accommodation groove formed in the front side of the reflector. The method of claim 3, wherein The sealing member guide hole is a control unit for an oven formed by drilling a portion of the reflector corresponding to the inside of the sealing member receiving groove. The method of claim 3, wherein The sealing member accommodating groove, the control unit for the oven is formed by recessed part of the front surface of the reflector. frame; A main printed circuit board provided on one surface of the frame; At least one LED printed circuit board provided on the other surface of the frame corresponding to the opposite side of the main printed circuit board and mounted with at least one LED; At least one reflector provided on a front surface of the LED printed circuit board and condensing light of the LED; A glaster that is attached to a front surface of the reflector and receives an operation signal through a capacitive touch method; And A sealing member accommodation groove in which a sealing member for attaching the glaster to the front surface of the reflector is accommodated; Oven control unit comprising a. The method of claim 6, The sealing member accommodating groove is a control unit for an oven is formed by recessed part of the front surface of the sealing member. The method of claim 6, And at least one sealing member guide hole for guiding the excess sealing member remaining after attaching the reflector and the glaster tooth among the sealing members accommodated in the sealing member receiving groove to the outside of the sealing member receiving groove. The method of claim 8, The sealing member guide hole is a control unit formed by drilling a portion of the reflector corresponding to the inside of the sealing member receiving groove. A cavity in which food is accommodated; Out casing surrounding the cavity; A cooktop installed on an upper surface of the outcasing; And A control unit according to any one of claims 6 to 9 installed on an upper surface of the outcasing adjacent to the cooktop; Oven containing. The method of claim 10, The main printed circuit board is installed on one surface of the frame relatively spaced from the cooktop relative to the LED printed circuit board with respect to the frame. The method of claim 11, The control unit is provided at the rear end of the upper surface of the outcasing, The main printed circuit board and the LED printed circuit board is an oven which is installed on the back and front of the frame, respectively.

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