KR102183719B1 - Refrigerator and manufacturing method thereof - Google Patents

Abstract

The door of the refrigerator according to the idea of the present invention includes a front plate made of a metal material, a display unit provided on the rear surface of the front plate, and a display unit that displays information about operation of the refrigerator by becoming bright or dark, and a front plate corresponding to the display unit. It includes a plurality of through holes formed in the region. The display unit is hidden inside the door, but information displayed on the display unit can be viewed to a user through a plurality of through holes in the front panel.

Description

Refrigerator and its manufacturing method {REFRIGERATOR AND MANUFACTURING METHOD THEREOF}

The present invention relates to a refrigerator in which a display unit is provided in a door.

In general, a refrigerator is a home appliance that stores food fresh by having a storage compartment for storing food and a cold air supply device for supplying cold air to the storage compartment. The storage compartment is opened and closed by a door, and a display unit may be provided on the door to display operation information of the refrigerator or to receive an operation command of the refrigerator.

Among these refrigerators, there is a refrigerator in which a display unit is provided to be hidden inside a door in order to improve the aesthetic appearance. In this case, the front plate of the door is made of tempered glass or a transparent resin material so that information displayed on the display unit can be transmitted to the outside through the front plate.

One aspect of the present invention discloses a door of a refrigerator in which a front plate is formed of a metal material and a display unit is hidden therein.

According to an idea of the present invention, a refrigerator includes a main body; and a storage compartment formed inside the main body; And a door opening and closing the storage compartment. Including, wherein the door, a front plate formed of a steel plate material, the front plate forming a front surface and a side surface of the door, and having through holes penetrating the front plate, the through holes forming a predetermined shape; And, a rear plate coupled to the rear of the front plate and forming a rear surface of the door; and a foam space formed between the front plate and the rear plate; and foamed in the foam space to insulate the storage compartment A heat insulating material; and a display unit that has a shape corresponding to a shape formed by the through holes and at least partially is turned on or off to display information, and the position of the display unit corresponds to the position of the through holes. A display unit disposed at the rear; and an upper cap including a body portion and an accommodation space formed inside the body portion to accommodate the display unit, and coupled to an upper portion of the front plate; And a lower cap coupled to a lower portion of the front plate. Including, the receiving space is formed to be open to the front so that the light of the display unit is radiated to the through holes, and the upper cap is the front plate to prevent the heat insulation of the foam space from penetrating into the receiving space It is arranged so as to be in close contact with the back of the.

Here, the refrigerator may further include a sealing member provided on the front surface of the body portion of the upper cap to seal between the body portion of the upper cap and the front plate.

In addition, the upper cap may further include an insertion groove formed at an upper end of the body portion to insert the display unit into the accommodation space.

In addition, the display unit may further include a light source unit for emitting light, and a guide unit for guiding light from the light source unit to the display unit.

Here, the display unit may further include a cover sheet on which the display unit is formed and coupled to the guide unit.

In addition, the predetermined shape of the display unit may include at least one of a picture, a letter, a number, and a symbol.

In addition, the guide part may include a guide hole provided to gradually increase in size from the light source part to the display part.

In addition, the refrigerator may further include a filler member filling the through holes.

Here, the filler member may be a silicone resin or a UV resin.

In addition, diameters of the through holes may be 0.1 mm to 0.5 mm.

In addition, the spacing between the through holes may be 0.3 mm to 1.5 mm.

In addition, the thickness of the front plate may be 0.6 mm or less.

In addition, the through holes may be formed through etching processing or laser drilling processing.

In addition, the display unit may further include an input unit having a capacitive touch button, and the input unit may sense a touch on a specific area of the front panel corresponding to the capacitive touch button to receive an operation command of the refrigerator. .

In another aspect, according to the spirit of the present invention, a refrigerator includes a main body; and a storage compartment formed inside the main body; And a door opening and closing the storage compartment. Including, wherein the door, a front plate formed of a steel plate material, the front plate forming a front surface and a side surface of the door, and having through holes penetrating the front plate, the through holes forming a predetermined shape; And, a rear plate coupled to the rear of the front plate and forming a rear surface of the door; and a foam space formed between the front plate and the rear plate; and foamed in the foam space to insulate the storage compartment A heat insulating material; and a display unit that has a shape corresponding to a shape formed by the through holes and at least partially is turned on or off to display information, and the position of the display unit corresponds to the position of the through holes. A display unit disposed at the rear; and an upper cap coupled to an upper portion of the front plate; And a lower cap coupled to a lower portion of the front plate. Including, the upper cap, a receiving space for accommodating the display unit; And, an insertion groove formed on the upper surface to insert the display unit into the receiving space; And a body portion provided on the front, rear, left, right and rear sides of the receiving space to separate the receiving space from the foaming space.

Here, the refrigerator may further include a sealing member provided on the front surface of the support member to seal the space between the support member and the front plate.

In addition, the refrigerator may further include a cover coupled to the insertion groove to seal the insertion groove after the display unit is inserted into the accommodation space through the insertion groove.

In another aspect, according to the spirit of the present invention, a refrigerator includes a main body; and a storage compartment formed inside the main body; And a door opening and closing the storage compartment. Including, wherein the door, a front plate formed of a steel plate material, the front plate forming a front surface and a side surface of the door, and having through holes penetrating the front plate, the through holes forming a predetermined shape; And, a rear plate coupled to the rear of the front plate and forming a rear surface of the door; and a foam space formed between the front plate and the rear plate; and foamed in the foam space to insulate the storage compartment A heat insulating material; and a display unit that has a shape corresponding to a shape formed by the through holes and at least partially is turned on or off to display information, and the position of the display unit corresponds to the position of the through holes. A display unit disposed at the rear; And a filler member filled in the through hole to prevent foreign matters from penetrating into the through hole. Includes.

Here, the filler member may be a UV paint.

In addition, air may be removed inside the through hole.

In addition, the filler member may not overflow on a front surface or a rear surface of the front plate excluding the inside of the through hole.

In addition, the filler member may be transparent.

In addition, the diameter of the through hole may be 0.1 mm to 0.5 mm.

In addition, the spacing between the through holes may be 0.3 mm to 1.5 mm.

According to the idea of the present invention, a method of manufacturing a refrigerator having a main body, a storage compartment, and a door for opening and closing the storage compartment, having a front plate formed of an iron plate, and a door having through holes formed in the front plate It includes forming through holes through etching or laser processing, and filling the inside of the through holes with fillers to prevent foreign matters from penetrating into the through holes.

Here, the filler member may be a UV paint.

In addition, filling the filler member into the through holes may include attaching a protective vinyl to the front surface of the front plate.

Here, filling the filler member into the through holes may include applying a filler member into the through holes through the rear surface of the front plate to which the protective vinyl is not attached.

In addition, filling the filler member into the through holes may include removing air generated in the through holes.

Here, removing the air generated in the through holes may be removing the air using a vacuum.

In addition, filling the filler member into the through holes may include a squeegee process of pushing the filler member overflowing to the front or rear surface of the front plate, not the inside of the through holes.

According to the idea of the present invention, a method of filling a filler member into the through holes formed in a plate is to apply a filler member to the inside of the through holes, remove the air generated in the through holes by using a vacuum, and the It includes pushing the filler member overflowing to the surface of the front or rear surface of the plate material other than the inside of the through holes.

According to the idea of the present invention, the front plate of the refrigerator is formed of a metal material, the display unit is hidden inside the door, and information displayed on the display unit can be viewed to the outside through through holes formed in the front plate. Accordingly, the aesthetic feeling of the refrigerator can be improved.

1 is a view showing the appearance of a refrigerator according to an embodiment of the present invention.
FIG. 2 is a schematic exploded perspective view of a door of the refrigerator of FIG. 1;
A cross-sectional view of the door of the refrigerator of FIG. 1 of FIG. 3.
4 is an exploded view of the display unit of the refrigerator of FIG. 1;
5 is an enlarged view of the periphery of through-holes of the front plate of the refrigerator of FIG. 1;
FIG. 6 is an enlarged view of the periphery of through-holes of the front plate when the display unit of the refrigerator of FIG. 1 is turned off.
7 is a cross-sectional view taken along line BB of FIG. 5.
8 is a view showing a state in which a filler member is filled in through holes in FIG. 7.
9 is a view showing a state in which air is generated while applying a filler member to through holes according to an embodiment of the present invention.
10 is a view showing a state in which air is removed from the through holes of FIG. 9 through a vacuum facility.
11 is a diagram sequentially illustrating an entire process of filling a filler member into through holes according to an embodiment of the present invention.
12 is a view showing a state in which a filler member is applied to through holes according to another embodiment of the present invention.
13 is a diagram sequentially illustrating an entire process of filling a filler member into through holes according to another embodiment of the present invention.

Hereinafter, a preferred embodiment according to the present invention will be described in detail.

1 is a view showing the appearance of a refrigerator according to an embodiment of the present invention.

Referring to FIG. 1, the refrigerator 1 includes a body 10, a storage compartment 11 and 12 provided inside the body 10, and a cold air supply device (not shown) that supplies cool air to the storage compartments 11 and 12. City).

The storage chambers 11 and 12 may be divided into an upper refrigerating chamber 11 and a lower freezing chamber 12 by an intermediate partition wall. The refrigerating compartment 11 may refrigerate food at a temperature of approximately 0°C. The refrigerating compartment 11 has an open front so that food can be put in and out. The open front may be opened and closed by a pair of doors 21 and 22 rotatably coupled to the main body 10. Handles 21a and 22a may be provided on the pair of doors 21 and 22, respectively.

The freezer 12 may store food frozen at sub-zero temperatures. The freezing compartment 12 has an open front so that food can be put in and out. The opened front may be opened and closed by a door 31 that is provided to be slidable in the front-rear direction. A handle 31a may be provided on the door 31.

One of the doors 21 and 22 may be provided with a plurality of through-holes 51 for displaying operation information of the refrigerator. At least a portion of the through holes 51 is brightened or darkened to display a specific shape and thus display operation information of the refrigerator. The configuration of the through holes 51 will be described in detail below.

Meanwhile, as described above, although the embodiment of the present invention is an FDR type refrigerator, it is natural that the idea of the present invention is not limited to the shape of the refrigerator and can be applied to all types of refrigerators.

2 is a schematic exploded perspective view of a door of the refrigerator of FIG. 1. 3 is a cross-sectional view of the door of the refrigerator of FIG. 1.

2 and 3, the door 21 is coupled to the front plate 50 forming the front and both sides of the door 21, the rear surface of the front plate 50, and the rear of the door 21 Formed by combining the rear plate 70 to form and the upper cap 60 and the lower cap 90 respectively sealing the upper and lower ends of the inner space formed between the front plate 50 and the rear plate 70 Can be.

A handle 21a may be provided on the front plate 50. The front plate 50 may be made of a metal material such as steel, aluminum, alloy, PCM, and VCM. The front plate 50 may be formed by bending one plate material to form the front and both sides of the door 21.

The front plate 50 has a higher strength than a tempered glass plate or a resin plate due to the characteristics of a metal material, and may give a luxurious feel. The front plate 50 may be further improved in aesthetics through a metal-specific surface treatment.

That is, a hairline processing, mirror polishing processing, or bead blast processing may be performed on the surface of the front plate 50. At this time, only any one of them may be processed on the front plate 50.

Alternatively, all of the plurality of processing may be performed on the front plate 50. That is, the front plate 50 may have all of the hairline pattern, gloss, and beads. In this case, the process sequence may be a mirror polishing process, a hairline process, and a bead blast process.

The rear plate 70 may be vacuum-molded from a resin material. The rear plate 70 may have a dyke 71 protruding rearward so that a door pocket can be mounted.

Each of the upper cap 60 and the lower cap 90 may be injection molded of a resin material. After the front plate 50, the rear plate 70, the upper cap 60, and the lower cap 90 are fitted and assembled through a bonding structure and adhesive tape, the insulation foaming solution is injected and foamed into the inner space. I can.

That is, a foam space 40 in which the heat insulating material 41 is foamed is formed between the front plate 50 and the rear plate 70. The insulating material 41 is for insulating the storage chamber 11, and urethane may be used. When the foaming of the insulating foam solution is completed in the foaming space 40, the front plate 50, the rear plate 70, and the upper cap 60 and the lower cap 90 will be firmly coupled by the adhesive force of the foaming solution. I can.

Meanwhile, a display unit 100 capable of displaying operation information of the refrigerator or receiving an operation command of the refrigerator is provided inside the door 22. The display unit 100 may be provided to be in close contact with the rear surface of the front plate 50.

The display unit 100 may be accommodated and supported by an upper cap 60 coupled to an upper portion of the front plate 50. The display unit 100 may be fixed such that the display portion 111 is positioned at a position corresponding to the through holes 51 of the front plate 50.

The upper cap 60 includes a body part 63 and an accommodation space 64 formed to have a front open inside the body part 63 and accommodate the display unit 100. That is, the accommodation space 64 is formed in a groove shape in front of the body part 63. In addition, an insertion groove 62 is formed in the upper surface 61 of the upper cap 60 so that the display unit 100 can be inserted into the accommodation space 64.

The reason that the front surface of the accommodation space 64 is provided to be open is that the light from the display part 111 of the display unit 100 accommodated in the accommodation space 64 is radiated to the through holes 51 of the front plate 50. It is to do.

In the accommodation space 64, a fixing protrusion 65 for fixing the display unit 100 by pressing the display unit 100 toward the front side may be provided. The fixing protrusion 65 may protrude forward from the body part 63. The fixing protrusion 65 may have an approximately smooth curved surface to guide the movement of the display unit 100 inserted from the upper side to the lower side. The fixing protrusion 65 may be provided with an elastic member having an elastic force.

When injecting and foaming the insulating material 41 into the foam space 40 and foaming, the insulating material 41 must not penetrate into the receiving space 64 so that the upper cap 60 is the front of the body 63 It is disposed so as to be in close contact with the rear surface of the front plate 50.

The body part 63 of the upper cap 60 is in close contact with the rear surface of the front plate 50, so that the receiving space 64 formed in the body part 61 may be separated from the foam space 40. That is, the upper, lower, left, right and rear sides of the accommodation space 64 may be covered by the body part 63, and the front side may be covered by the rear surface of the front plate 50.

A sealing member 67 may be provided on the front surface of the body 61 to ensure the sealing of the receiving space 64 and the foaming space 40. The sealing member 67 may be made of an elastic material such as rubber, or may be made of an adhesive material such as a tape. When the upper cap 60 is coupled to the upper portion of the front plate 50, the sealing member 67 is in close contact with the rear surface of the front plate 50 to seal the receiving space 64 as an independent space.

The upper cap 60 may further include a cover 68 that seals the insertion groove 62 after the display unit 100 is inserted into the accommodation space 64 through the insertion groove 62. The cover 68 may have a pressing portion 69 that presses the display unit 100 to prevent the display unit 100 from flowing in the vertical direction.

In this embodiment, the receiving space 64 for accommodating the display unit 100 and the body 63 for separating the receiving space 64 from the foaming space 40 are integrally formed in the upper cap 60, It is not limited thereto, and may be provided separately from the upper cap 60 and fixedly coupled to the upper cap 60.

With this structure, the display unit 100 may be mounted inside the door 21, and the display unit 100 is not exposed to the outside. However, when specific information is displayed on the display unit 100, the information may be externally displayed through a plurality of through holes 51 of the front plate 50.

4 is an exploded view of the display unit of the refrigerator of FIG. 1.

Referring to FIG. 4, the display unit 100 includes a cover sheet 110, a light source unit 130 for emitting light, and a guide unit 120 for guiding light emitted from the light source unit 130 to the display unit 111 It may include.

The cover sheet 110 may include a display unit 111 that displays information about operation of a refrigerator as it is brightened or darkened, and a blocking unit 112 that is kept relatively dark at all times. The display portion 111 may be formed of a transparent material or a fluorescent material, and the blocking portion 112 may be formed of an opaque material.

The cover sheet 110 may be provided separately from the guide portion 120 and may be adhered to one surface of the guide portion 120.

The display unit 111 may be composed of any one of a picture 111a, a character 111b, a number, a symbol, and a segment 111c forming a part thereof or a combination thereof for displaying the operation information of the refrigerator. Accordingly, when light is shining on the cover sheet 110, pictures 111a, characters 111b, numbers and symbols of the display unit 111 are illuminated, and operation information of the refrigerator can be displayed.

The light source unit 130 may include an LED 131 that emits light, a printed circuit board 132 on which the LED 131 is mounted, and a connector 133 to which power is connected. The LED 131 is provided in plural and may be independently controlled.

The guide unit 120 guides the light emitted from the LED 131 to be directed to the cover sheet 110. The guide portion 120 includes a body portion 121 formed of a material that reflects light, and a guide hole 122 formed to pass through the body portion 121. The guide hole 122 may be formed to gradually increase in size from the LED 131 side to the cover sheet 110 side, as shown in FIGS. 7 and 8.

Meanwhile, the display unit 100 may further include an input unit for receiving an operation command of the refrigerator. The input unit may be a capacitive touch sensing method.

For example, the input unit may have a spring-shaped touch button 140 and a sensor (not shown) that measures a change in charge according to a user's touch. The touch button 140 may be mounted on the printed circuit board 132 and may pass through the button hole 123 of the guide unit 120 to contact the cover sheet 110.

When the user touches a specific area of the front plate corresponding to the position of the touch button 140, the sensor may sense a touch by measuring a change in electric charge flowing through the touch button 140. It goes without saying that the input unit may employ a variety of known methods such as a pressure-sensitive type, a Dome switch type, and a proximity sensing (IR) method other than the capacitive type.

Meanwhile, of course, the display unit 111 may be integrally formed on the guide unit 120. In this case, a separate cover sheet may not be provided on the display unit 100.

FIG. 5 is an enlarged view of the periphery of through-holes of the front plate of the refrigerator of FIG. 1. FIG. 6 is an enlarged view illustrating the periphery of through holes of the front plate when the display unit of the refrigerator of FIG. 1 is turned off. 7 is a cross-sectional view taken along line B-B of FIG. 5. 8 is a view showing a state in which the filler member is filled in through holes in FIG. 7.

5 to 8, when the display unit 100 hidden inside the door 21 displays specific information, as shown in FIG. 5, a plurality of front plates 50 of the door 21 The information may be displayed through the through holes 51 of the.

The through holes 51 formed in the front plate 50 preferably have a diameter of about 0.1 mm to 0.5 mm, and the interval between the through holes 51 may be about 0.3 mm to 1.5 mm. The through holes 51 may be substantially observable with the naked eye of the user. At this time, it is assumed that the thickness of the front plate 50 is 0.6 mm or less.

These through holes 51 may be formed through etching processing or laser drilling processing. When the size of the through hole 51 is in the range of 0.3 mm to 0.4 mm, high-precision etching processing may be suitable.

When the size of the through hole 51 is 0.2 mm or less, some thermal deformation or burr may occur, but it is preferable to use laser drilling. On the other hand, since the size of the through-hole 51 decreases when the size of the through-hole 51 is large, the size of the through-hole 51 may be 0.2 mm or less.

As an example, the size of the through holes 51c corresponding to the segments 111c forming a part of the number in FIG. 3 may be in the range of 0.3 mm to 0.4 mm, and a small figure 111a and a small letter ( It may be preferable that the sizes of the through holes 51a and 51b corresponding to 111b) be 0.2 mm or less. The through holes 51 are formed in a predetermined area corresponding to the display part 111 of the display unit 100.

That is, the through-holes 51 are a picture (51a), a character (51b) and a number segment (51c) corresponding to the picture (111a), the character (111b) and the number segment (111c) of the display unit 111, etc. Can be arranged to form the shape of. Therefore, when the LED 131 emit light and a specific picture, letter, number, symbol, etc. are displayed on the display unit 100, the specific picture, letter, number, symbol, etc. are displayed on the front plate 50 of the door. Can be.

As illustrated in FIG. 7, as a result, light emitted from the LED 131 of the printed circuit board 130 is the guide hole 122 of the guide part 120 and the display part 111 of the cover sheet 110. Wow, passing through a plurality of through-holes 51 of the front plate 50 in turn, it can be recognized by the user.

Meanwhile, as shown in FIG. 8, a filler member 52 may be filled in the through hole 51 to prevent clogging of the through hole 51 by inserting foreign substances into the through hole 51.

The filler member 52 may have a transparent material or a fluorescent material. The filler member 52 may be a silicone resin or a UV resin. The filler member 52 may be filled in a plurality of through holes 51 by applying a silicone or UV paint to the front plate 50.

In this way, forming the through hole 51 in the front plate 50 of the door 21 and placing the display unit 100 inside the door 21 to hide it is not only applicable to the refrigerator, but cooking Of course, it can be applied to kitchen appliances such as appliances.

9 is a diagram illustrating a state in which air is generated while applying a filler member to through holes according to an embodiment of the present invention, and FIG. 10 is a diagram illustrating a state in which air is removed from the through holes of FIG. 9 through a vacuum facility. It is a drawing. 11 is a diagram sequentially illustrating an entire process of filling a filler member into through holes according to an embodiment of the present invention.

A process of filling a filler member in through holes according to an embodiment of the present invention will be described with reference to FIGS. 9 to 11. Here, an example in which a UV paint is used as the filler member will be described. Hereinafter, the filler member, the UV paint, and the paint refer to the same.

11, the process of filling the filler member 52 in the through holes 51 according to an embodiment of the present invention includes a step 310 of coating a protective vinyl, a step 320 of applying a paint, A step of removing air (330), a step of squeegeeing to push out the overflowed filler member (340), a step of curing the UV paint 350, and an inspection step (360).

The step 310 of coating the protective vinyl is a step of coating the protective vinyl 200 so as to close one of the openings on both sides of the through hole 51. In this embodiment, the protective vinyl 200 was coated on the front surface 50a of the front plate 50. However, it is not limited thereto, and a protective vinyl 200 may be coated on the rear surface 50b of the front plate 50.

The protective vinyl 200 must be coated in close contact with the front surface 50a of the front plate 50 so that the paint 52 does not escape. The protective vinyl 200 may be peeled off again when the process of filling the paint 52 in the through holes 51 is all completed.

The step 320 of applying the paint is actually a step of applying the UV paint to the inside of the through hole 51. Since the protective vinyl 200 is coated on the front surface 50a of the front plate 50, the front plate 50 is formed through the inlet of the through hole 51 formed on the rear surface 50b. Apply paint inside.

The coating may be applied by immersing the front plate 50 in a container filled with the paint.

As shown in Fig. 9, in the process of applying the paint to all of the plurality of through holes 51 when the paint 52 is applied, the paint 52 inevitably overflows the space inside the through hole 51 It may be partially applied to the surface of the rear surface 50b of the plate 50.

For convenience of explanation, a part of the paint 52 applied to the surface of the rear surface 50b of the front plate 50 other than the inside of the through hole 51 is referred to as an overflow part 52a. Although described later, the overflow portion 52a is removed by a squeegee process.

Meanwhile, as well illustrated in FIG. 9, air 210 (air) may be generated in the through hole 51 during the application of the paint 52. The air 210 prevents the paint from being applied to a part of the through hole 51. In addition, the paint may be pushed toward the protective vinyl 200. Therefore, the state in which the paint 52 is filled in the through hole 51 is not good.

In order to prevent this phenomenon, when the coating material 52 is applied, the air 210 generated in the through hole 51 is removed. Removing the air 210 can be achieved by removing the air 210 using vacuum through a vacuum installation. A state in which the air 210 is removed is shown in FIG. 10.

Squeegee (squeegee) step 340 is a leveling step of removing the overflow portion 52a of the above-described paint 52 to equalize the level, and pushing the rear surface 50b of the front plate 50 using a push rod It can be done in a way. Although described later, such a squeegee step may be unnecessary depending on the shape of the through hole.

The UV curing step 350 is a step of curing the UV paint by irradiating the left ultraviolet ray on the UV paint applied as described above.

The inspection step 360 is a step of finally inspecting the filling state of the UV paint.

12 is a view showing a state in which a filler member is applied to through-holes according to another embodiment of the present invention, and FIG. 13 is a diagram illustrating an entire process of filling a filler member into through-holes according to another embodiment of the present invention. It is a drawing shown in order.

As described above, the squeegee step may be unnecessary depending on the shape of the through hole. For example, as shown in FIG. 12, when the front plate 50 is half-etched so that the through-holes 410 and 420 include a half-etched portion 410 and a hole portion 420 Step is unnecessary.

Because, when applying the paint 52, only the hole portion 420 of the through-holes 410 and 420 is applied, and the half-etched portion 410 is applied with the paint 52 so that some paint 52 is not applied. Because it can. That is, when the front plate 50 is half-etched as described above, the overflow of the paint 52 may not occur.

Excluding the squeegee step, the paint may be filled through the same process as the above-described embodiment. That is, the process of filling the filler member in the through-holes according to another embodiment of the present invention includes coating a protective vinyl (410), applying a paint (420), removing air (430), and applying a UV paint. The curing step 440 and the inspection step 450 may be sequentially performed. These steps are the same as those of the above-described embodiment, and thus a description thereof will be omitted.

Through this filling method, the air in the through hole is removed and the sealing member can be filled so that there is no overflow of the sealing member, and thus, the aesthetic feeling of the door can be improved.

The method of filling the sealing member 52 in the through hole 51 described above is not applied only to the front plate 50 of the refrigerator door. Naturally, even if it is not a door of a refrigerator, it can be applied when filling a sealing member in a through hole formed in a plate material such as an iron plate. That is, it can be applied not only to refrigerators, but also to kitchen appliances such as cooking appliances.

Although the technical idea of the present invention has been described by a specific embodiment, the scope of the present invention is not limited to this embodiment. Various embodiments that can be modified or modified by a person of ordinary skill in the art within the scope not departing from the gist of the technical idea of the present invention specified in the claims will also fall within the scope of the present invention.

1: refrigerator 10: main body
11: refrigerator compartment 12: freezer compartment
21: left door 21a: handle
22: right door 22a: handle
31: sliding door 31a: handle
40: foam space 41: insulation
50: front plate 51: through hole
52: filler member 52a: overflow
60: upper cap 61: upper surface
62: insertion groove 63: body
64: accommodation space 65: fixed projection
67: sealing member 68: cover
69: pressing unit 70: rear plate
71: dyke 90: lower cap
100: display unit 110: cover sheet
111: display 120: guide
121: body part 122: guide hole
130: light source unit 131: LED
132: printed circuit board 200: protective vinyl
210: air 410: half cutting through hole
420: through hole

Claims (33)

main body;
A storage chamber formed inside the main body; And
A door for opening and closing the storage chamber; Including,
The door,
A front plate forming the front and side surfaces of the door and formed of a metal material;
A rear plate coupled to the rear of the front plate and forming a rear surface of the door;
A foam space formed between the front plate and the rear plate;
An insulating material foamed in the foam space to insulate the storage chamber;
A display unit disposed behind the front plate;
An upper cap including a body portion and an accommodation space formed inside the body portion to accommodate the display unit, and coupled to an upper portion of the front plate; And
A lower cap coupled to a lower portion of the front plate; Including,
The display unit,
A light source unit that emits light;
A display unit formed to pass light emitted from the light source unit and having a predetermined shape including at least one of pictures, letters, numbers, and symbols to display information, and the light emitted from the light source unit A cover sheet including a blocking portion formed so as to prevent; And
A guide unit for guiding the light of the light source unit to the display unit; Including,
A refrigerator, wherein a plurality of through holes are formed in the front plate so as to form a shape corresponding to a predetermined shape of the display unit at a position corresponding to the display unit. The method of claim 1,
And a sealing member provided on a front surface of the body portion of the upper cap to seal a space between the body portion of the upper cap and the front plate. The method of claim 1,
The upper cap further comprises an insertion groove formed at an upper end of the body portion to insert the display unit into the accommodation space. delete The method of claim 1,
The cover sheet is a refrigerator, characterized in that coupled to the guide portion. delete The method of claim 1,
And a guide hole provided to gradually increase in size from the light source unit to the display unit. The method of claim 1,
The refrigerator according to claim 1, further comprising a filler member filling the through holes. The method of claim 8,
The filler member is a refrigerator, characterized in that the silicone resin or UV resin. The method of claim 1,
Refrigerator, characterized in that the through-holes have a diameter of 0.1 mm to 0.5 mm. The method of claim 1,
Refrigerator, characterized in that the spacing between the through holes is 0.3 mm ~ 1.5 mm. The method of claim 1,
Refrigerator, characterized in that the thickness of the front plate is 0.6 mm or less. The method of claim 1,
The through-holes are characterized in that the refrigerator is formed through an etching process or laser drilling process. The method of claim 1,
The display unit further includes an input unit having a capacitive touch button,
Wherein the input unit senses a touch on a specific area of the front panel corresponding to the capacitive touch button to receive an operation command of the refrigerator. delete delete delete main body;
A storage chamber formed inside the main body; And
A door for opening and closing the storage chamber; Including,
The door,
A front plate forming the front and side surfaces of the door and formed of a steel plate material;
A rear plate coupled to the rear of the front plate and forming a rear surface of the door;
A foam space formed between the front plate and the rear plate;
An insulating material foamed in the foam space to insulate the storage chamber; And
A display unit disposed behind the front plate; Including,
The display unit,
A light source unit that emits light;
A display unit formed to pass light emitted from the light source unit and having a predetermined shape including at least one of pictures, letters, numbers, and symbols to display information, and the light emitted from the light source unit A cover sheet including a blocking portion formed so as to prevent; And
A guide unit for guiding the light of the light source unit to the display unit; Including,
A plurality of through holes are formed in the front plate to form a shape corresponding to a predetermined shape of the display unit at a position corresponding to the display unit,
A refrigerator, wherein a filler member is filled in the through hole to prevent foreign substances from penetrating into the through hole. The method of claim 18,
The filler member is a refrigerator, characterized in that the UV paint. The method of claim 18,
A refrigerator, characterized in that air is removed from the inside of the through hole. The method of claim 18,
A refrigerator, characterized in that the filler member does not overflow on a front surface or a rear surface of the front plate excluding the inside of the through hole. The method of claim 18,
The refrigerator, wherein the filler member is transparent. delete delete delete delete delete delete delete delete delete delete delete

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