KR20140121753A - Refrigerator and manufacturing method thereof - Google Patents

Abstract

A door of a refrigerator according to the present invention comprises: a front plate made of a metal; a display unit which is arranged on a rear surface of the front plate and includes a display which displays operation information of the refrigerator by changing brightness; and a plurality of through holes which are formed on an area of the front plate corresponding to the display. Even though the display unit is hidden inside the door, the information displayed on the display unit can be observed by a user through the through holes on the front plate.

Description

REFRIGERATOR AND MANUFACTURING METHOD THEREOF FIELD OF THE INVENTION [0001]

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

Generally, a refrigerator is a household appliance having a storage room for storing food and a cold supply device for supplying cold air to the storage room to store food freshly. The storage room is opened and closed by a door, and a door is provided with a display unit for displaying operation information of the refrigerator or receiving an operation command of the refrigerator.

In order to improve the appearance of the refrigerator, there is a refrigerator in which the display unit is hidden inside the door. At this time, the front plate of the door is made of tempered glass or transparent resin so that the 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 made of a metal material and a display unit is hidden therein.

According to an aspect of the present invention, a refrigerator includes: a main body; a storage chamber formed inside the main body; And a door for opening / closing the storage chamber; Wherein the door includes a front plate having a front surface and a side surface of the door, the front plate having an iron plate material, the through plate having through holes passing through the front plate, the through holes having a predetermined shape; A rear plate coupled to a rear portion of the front plate and defining a rear surface of the door; a foam space formed between the front plate and the rear plate; And a display unit for displaying information by at least a part of the display unit being turned on or off so that the position of the display unit corresponds to the position of the through holes, A display unit disposed at a rear side of the display unit, a body portion, and a receiving space formed inside the body portion to receive the display unit, An upper cap coupled to the upper portion of the face plate; And a lower cap coupled to a lower portion of the front plate; Wherein the upper space is formed in such a manner that the front surface is opened so that the light of the display unit is emitted to the through holes, As shown in Fig.

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

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

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.

The display unit may further include a cover sheet formed with the display unit and coupled to the guide unit.

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

In addition, the guide unit may include a guide hole that gradually increases in size from the light source unit toward the display unit.

Further, the refrigerator may further include a filler member for filling the through holes.

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

The diameter of the through holes may be 0.1 mm to 0.5 mm.

The distance between the through holes may be 0.3 mm to 1.5 mm.

The thickness of the front plate may be 0.6 mm or less.

Further, the through holes may be formed through etching or laser drilling.

Further, the display unit may further include an input unit having an electrostatic touch button, and the input unit may receive an operation command of the refrigerator by sensing a touch of a specific area of the front plate corresponding to the electrostatic touch button .

According to another aspect of the present invention, there is provided a refrigerator comprising: a main body; a storage chamber formed inside the main body; And a door for opening / closing the storage chamber; Wherein the door includes a front plate having a front surface and a side surface of the door, the front plate having an iron plate material, the through plate having through holes passing through the front plate, the through holes having a predetermined shape; A rear plate coupled to a rear portion of the front plate and defining a rear surface of the door; a foam space formed between the front plate and the rear plate; And a display unit for displaying information by at least a part of the display unit being turned on or off so that the position of the display unit corresponds to the position of the through holes, A display unit disposed at a rear side; 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; Wherein the upper cap includes: an accommodation space for accommodating the display unit; an insertion groove formed on an upper surface to insert the display unit into the accommodation space; And a body portion provided on the front, back, left, right, and rear sides of the accommodation space to separate the accommodation space from the foam space.

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

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.

According to another aspect of the present invention, there is provided a refrigerator comprising: a main body; a storage chamber formed inside the main body; And a door for opening / closing the storage chamber; Wherein the door includes a front plate having a front surface and a side surface of the door, the front plate having an iron plate material, the through plate having through holes passing through the front plate, the through holes having a predetermined shape; A rear plate coupled to a rear portion of the front plate and defining a rear surface of the door; a foam space formed between the front plate and the rear plate; And a display unit for displaying information by at least a part of the display unit being turned on or off so that the position of the display unit corresponds to the position of the through holes, A display unit disposed rearward; And a filler member filled in the through hole so as to prevent foreign matter from penetrating into the through hole; .

Here, the filler member may be a UV paint.

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

In addition, the filler member may not overflow on the front surface or the back surface of the front plate except the inside of the through hole.

In addition, the filler member may be transparent.

The diameter of the through hole may be 0.1 mm to 0.5 mm.

The distance between the through holes may be 0.3 mm to 1.5 mm.

According to an aspect of the present invention, there is provided a method of manufacturing a refrigerator having a main body, a storage compartment, a door for opening and closing the storage compartment, and a door having a front plate formed of an iron plate material and having through holes formed in the front plate, Forming the through holes through etching or laser processing, and filling the filler inside the through holes to prevent foreign matter from penetrating into the through holes.

Here, the filler member may be a UV paint.

In addition, filling the pillar member in the through holes may include attaching a protective plastic to the front surface of the front plate.

The filling of the pillar members in the through holes may include applying the filler member to the inside of the through holes through the back surface of the front plate to which the protective vinyl is not attached.

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

Here, to remove the air generated in the through holes, the air may be extracted using a vacuum.

In addition, filling the pillar member in the through holes may include a squeegee process for pushing the overflowed filler member to the surface of the front surface or the back surface of the front plate rather than the inside of the through hole.

According to an aspect of the present invention, there is provided a method of filling a pillar member in a through hole formed in a plate material, comprising the steps of applying a filler member to the inside of the through hole, removing air generated inside the through hole using a vacuum, And pushing the overflowed filler member to the surface of the front surface or the back surface of the sheet material, not 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 the information displayed on the display unit can be seen through the through holes formed in the front plate. Therefore, the aesthetics of the refrigerator can be improved.

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

Hereinafter, preferred embodiments 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.

1, the refrigerator 1 includes a main body 10, storage rooms 11 and 12 provided inside the main body 10, and cold air supply devices (not shown) for supplying cool air to the storage rooms 11 and 12 .

The storage rooms 11 and 12 can be partitioned into an upper refrigerating chamber 11 and a lower freezing chamber 12 by intermediate partition walls. The refrigerating chamber 11 can store the food in a refrigerator at a temperature of approximately 0 캜. The refrigerator compartment 11 has a front surface that is opened to allow food to be delivered and received. The opened front face can 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 compartment 12 can freeze the food at sub-zero temperatures. The freezing compartment 12 has a front surface that is opened to allow food to be delivered and received. The opened front face can be opened and closed by a door 31 slidable in the front-rear direction. The door 31 may be provided with a handle 31a.

The door 21 of any 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 part of the through holes 51 is brightened or darkened to display a specific shape and thus to display the operation information of the refrigerator. The configuration of the through holes 51 will be described in detail below.

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

2 is a schematic exploded perspective view of the door of the refrigerator of Fig. Fig. 3 is a sectional view of the door of the refrigerator of Fig. 1 of Fig. 3;

2 and 3, the door 21 includes a front plate 50 which forms a front surface and both sides of the door 21, a front plate 50 which is coupled to the rear surface of the front plate 50, An upper cap 60 and a lower cap 90 are coupled to each other to seal the upper and lower ends of the inner space formed between the front plate 50 and the rear plate 70, .

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

The front plate 50 is stronger in strength than a tempered glass plate or a resin plate due to the nature of a metal material and can give a feeling of luxury. The surface of the front plate 50 can be further improved by surface treatment of the metal.

That is, hair line processing, mirror polishing processing, bead blast processing, or the like may be performed on the surface of the front plate 50. At this time, only one of these processes can be performed on the front plate 50.

Or both of the plurality of processes may be performed on the front plate 50. That is, the front plate 50 can have both a hairline pattern, gloss, and beads. In this case, the process order may be a sequence of mirror polishing, hairline processing, and bead blasting.

The back plate 70 can be vacuum molded with a resin material. The rear plate 70 may have a dike 71 protruding rearward so as to mount the door pocket.

The upper cap 60 and the lower cap 90 may each be injection molded of a resin material. After inserting the front plate 50, the rear plate 70, the upper cap 60, and the lower cap 90 through the fitting structure, the adhesive tape, or the like, the insulator foamed liquid is injected and foamed into the inner space .

That is, between the front plate 50 and the rear plate 70, a foam space 40 in which the heat insulating material 41 is foamed is formed. The heat insulating material 41 is for heat insulation of the storage chamber 11, and urethane may be used. The front plate 50 and the rear plate 70 and the upper and lower caps 60 and 90 are firmly coupled to each other by the adhesive force of the foamed liquid when the foaming of the heat insulating material foamed liquid is completed in the foamed space 40 .

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

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

The upper cap 60 includes a body portion 63 and an accommodation space 64 formed in the body portion 63 so as to be opened frontward and accommodating the display unit 100 therein. That is, the accommodation space 64 is formed in the shape of a groove in front of the body portion 63. 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 why the front surface of the accommodation space 64 is opened is that the light of the display unit 111 of the display unit 100 accommodated in the accommodation space 64 is emitted to the through holes 51 of the front plate 50 .

The accommodation space 64 may be provided with a fixing protrusion 65 for fixing the display unit 100 by pressing the display unit 100 forward. The fixing protrusions 65 may protrude forward from the body portion 63. The fixing protrusions 65 may have an approximately gently 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 as an elastic member having an elastic force.

The upper cap 60 needs to be provided on the front surface of the body portion 63 so that the foaming liquid of the heat insulating material 41 does not penetrate into the containing space 64 when the foaming liquid of the heat insulating material 41 is injected into the foaming space 40. [ Is disposed closely to the back surface of the front plate (50).

The body portion 63 of the upper cap 60 is brought into close contact with the rear surface of the front plate 50 so that the accommodation space 64 formed inside the body portion 61 can 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 portion 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 portion 61 to ensure sealing between the accommodation space 64 and the foam 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 brought into close contact with the rear surface of the front plate 50 to seal the accommodation space 64 into an independent space.

The upper cap 60 may further include a cover 68 for sealing 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 for pressing the display unit 100 to prevent the display unit 100 from flowing upward and downward.

The body portion 63 for separating the accommodation space 64 for accommodating the display unit 100 and the accommodation space 64 from the foam space 40 is formed integrally with the upper cap 60, But it is not limited thereto and may be provided separately from the upper cap 60 and may be fixedly coupled to the upper cap 60.

With this structure, the display unit 100 can 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 can be displayed on the outside through the plurality of through holes 51 of the front plate 50. [

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

4, the display unit 100 includes a cover sheet 110, a light source unit 130 that emits light, a guide unit 120 that guides light emitted from the light source unit 130 to the display unit 111, . ≪ / RTI >

The cover sheet 110 may include a display unit 111 for displaying information on the operation of the refrigerator by being brightened or darkened, and a blocking unit 112 for being kept in a relatively dark state at all times. The display portion 111 may be formed of a transparent material or a fluorescent material, and the stopper 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 include any one or a combination of a picture 111a, a character 111b, a number, a symbol, and a segment 111c that constitute a part of the picture 111a for displaying the operation information of the refrigerator. Accordingly, when light is reflected on the cover sheet 110, the figure 111a, the character 111b, the number and the symbol of the display unit 111 are revealed and the operation information of the refrigerator can be displayed.

The light source unit 130 may include an LED 131 for emitting light, a printed circuit board 132 for mounting the LED 131, and a connector 133 to which power is connected. A plurality of LEDs 131 are provided and can be independently controlled.

The guide unit 120 guides the light emitted from the LED 131 toward the cover sheet 110. [ The guide part 120 includes a body part 121 formed of a material reflecting light and a guide hole 122 formed to penetrate the body part 121. The guide hole 122 may be formed to gradually increase in size from the LED 131 side toward the cover sheet 110 side as shown in FIGS.

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

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

When the user touches a specific area of the front plate corresponding to the position of the touch button 140, the sensor can sense whether or not the touch is detected by measuring a change in the electric charge flowing on the touch button 140. It is needless to say that various known methods such as a pressure sensitive type, a dome switch type, and a proximity sensing (IR) type may be adopted as the input part in addition to the electrostatic type.

It goes without saying that the display unit 111 may be formed integrally with 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 peripheries of the through holes of the front plate of the refrigerator of FIG. 1; FIG. 6 is an enlarged view of the peripheries of the through holes of the front plate in a state in which the display unit of the refrigerator of FIG. 1 is turned off. 7 is another cross-sectional view taken along line B-B of Fig. FIG. 8 is a view showing a state in which the pillar members are filled in the through holes in FIG. 7;

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

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 can be observed almost visually by 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 can be formed by etching or laser drilling. When the size of the through hole 51 is in the range of 0.3 mm to 0.4 mm, etching with high precision may be suitable.

When the size of the through hole 51 is 0.2 mm or less, some thermal deformation or burr may be generated, but laser drilling is preferably used. On the other hand, when the size of the relatively small-sized through-hole 51 is large, the discriminating force is low. Therefore, it is preferable that the size of the through-hole 51 is 0.2 mm or less.

For example, the size of the through holes 51c corresponding to the segment 111c forming a part of the number in FIG. 3 may be in the range of 0.3 mm to 0.4 mm, and the size of the small picture 111a and the small character The sizes of the through holes 51a and 51b corresponding to the through holes 111a and 111b may preferably be 0.2 mm or less. The through holes 51 are formed in a predetermined area corresponding to the display unit 111 of the display unit 100.

That is, the through holes 51 are formed in the shape of a figure 51a, a character 51b and a segment 51c corresponding to a figure 111a, a character 111b and a numeral segment 111c of the display unit 111, As shown in FIG. Accordingly, when a specific picture, letter, number, symbol, or the like is displayed on the display unit 100 after the LED 131 is illuminated, the specific picture, letter, number, symbol or the like is displayed on the front plate 50 of the door .

The light emitted from the LED 131 of the printed circuit board 130 is guided to the guide hole 122 of the guide portion 120 and the display portion 111 of the cover sheet 110, And the plurality of through holes 51 of the front plate 50 in order to be recognized by the user.

8, the penetrating hole 51 may be filled with the filler member 52 to prevent foreign matter from being inserted into the penetrating hole 51 to prevent the penetrating hole 51 from being clogged.

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

In this manner, the through holes 51 are formed in the front plate 50 of the door 21 and the display unit 100 is disposed inside the door 21 to hide the door unit 21, The present invention can also be applied to kitchen appliances such as appliances.

FIG. 9 is a view showing a state where air is generated while the pillar member is applied to the through holes according to the embodiment of the present invention. FIG. 10 is a view showing a state in which air is removed through the vacuum equipment in the through holes of FIG. Fig. FIG. 11 is a view showing the entire process of filling the pillar member in the through holes according to the embodiment of the present invention in order.

9 to 11, a process of filling the through holes according to the embodiment of the present invention with the filler member will be described. Here, an example using a UV paint as the filler member will be described. In the following, the filler member, the UV paint, and the paint all refer to the same thing.

11, the process of filling the pillar member 52 in the through holes 51 according to the embodiment of the present invention includes the steps of coating the protective vinyl 310, applying the paint 320, Air removal step 330, a squeegee step 340 to push out the overflowed filler member, a step 350 to cure the UV paint, and an inspection step 360.

The step of coating the protective vinyl 310 is a step of coating the protective vinyl 200 so as to cover one opening in both openings of the through hole 51. In the present embodiment, the protective vinyl 200 is coated on the front surface 50a of the front plate 50. However, the protective plate 200 may be coated on the back surface 50b of the front plate 50, but not limited thereto.

The protective vinyl 200 should be coated on the front surface 50a of the front plate 50 so as to prevent the paint 52 from coming off. The protective vinyl 200 can be peeled off again when the process of filling the through holes 51 with the paint 52 is completed.

The step of applying the coating material (320) is a step of actually applying the UV paint to the inside of the through hole (51). Since the front surface 50a of the front plate 50 is coated with the protective vinyl 200, the front plate 50 is inserted into the through hole 51 through the inlet of the through hole 51 formed on the back surface 50b side. Apply the paint inside.

The application of the paint may be performed by immersing the front plate 50 in the container filled with the paint.

9, in the process of applying the paint to all of the plurality of through holes 51 at the time of applying the paint 52, the paint 52 inevitably overflows the space inside the through hole 51, Can be partially applied to the surface of the back surface 50b of the plate 50. [

A portion of the paint 52 applied to the surface of the back surface 50b of the front plate 50 other than the inside of the through hole 51 is referred to as an overflow portion 52a. As will be described later, the overflow portion 52a is removed by a squeegee process.

On the other hand, as shown in FIG. 9, the air (210, air) may be generated inside the through hole (51) during the application of the paint (52). This air 210 prevents the paint from being applied to a part of the inside of the through hole 51. Further, the paint may be pushed toward the protective vinyl 200 side. Therefore, the state in which the through hole 51 is filled with the paint 52 is not good.

In order to prevent such a phenomenon, when the application of the paint 52 is completed, the air 210 generated in the through hole 51 is removed. Removing the air 210 can be accomplished by vacuuming the air 210 through a vacuum system. The state in which the air 210 is removed is shown in Fig.

The squeegee step 340 is a leveling step of removing the overflow portion 52a of the paint 52 described above so as to equalize the level and pushing the back surface 50b of the front plate 50 using the plunger . ≪ / RTI > As will be described later, this 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 left-outer rays to the UV paint thus coated.

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

FIG. 12 is a view showing a state in which a pillar member is applied to through holes according to another embodiment of the present invention, and FIG. 13 is a sectional view showing the entire process of filling a pillar member in the through holes according to another embodiment of the present invention Fig.

As described above, the squeegee step may be unnecessary depending on the shape of the through hole. 12, when the front plate 50 is half-etched so that the through holes 410 and 420 include the half-etched portion 410 and the hole portion 420, The step is unnecessary.

This is because only the hole portion 420 of the through holes 410 and 420 is entirely coated at the time of applying the paint 52 and the half-etched portion 410 is coated with the paint 52 so that some paint 52 is not applied It is because. That is, when the front plate 50 is half-etched as described above, overflow of the paint 52 may not occur.

With the exception of this squeegee step, filling of the paint can proceed through the same process as in the above-described embodiment. That is, the process of filling the piercing member in the through holes according to another embodiment of the present invention includes a step 410 coating the protective vinyl, a step 420 coating the paint, a step 430 removing the air, Curing step 440, and inspecting step 450 in that order. These steps are the same as those of the above-described embodiment, and a description thereof will be omitted.

Through this filling method, the air inside the through hole can be removed and the sealing member can be filled with no overflow of the sealing member, and therefore, the feel of the door can be improved.

The method of filling the through hole 51 with the sealing member 52 is not limited to the front plate 50 of the refrigerator door. It goes without saying that the present invention can be applied not only to the door of the refrigerator but also to the case of filling the through hole formed in the plate member such as the iron plate with the sealing member. That is, the present invention can be applied not only to a refrigerator but also to a home appliance for a kitchen such as a cooking appliance.

Although the technical idea of the present invention has been described above with reference to specific embodiments, the scope of rights of the present invention is not limited to these embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents.

1: Refrigerator 10: Body
11: refrigerator compartment 12: freezer compartment
21: Left door 21a: Handle
22: Right door 22a: Handle
31: Sliding door 31a: Handle
40: foaming space 41: insulation
50: front plate 51: through hole
52: filler member 52a: overflow
60: upper cap 61: upper surface
62: insertion groove 63:
64: accommodation space 65: fixed projection
67: sealing member 68: cover
69: pressing portion 70: rear plate
71: Dike 90: Lower cap
100: display unit 110: cover sheet
111: display section 120: guide section
121: Body part 122: Guide hole
130: light source 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 body; And
A door that opens and closes the storage room; Lt; / RTI >
The door
A front plate having a front surface and a side surface of the door and formed of an iron plate material, the front plate having through holes passing through the front plate, the through holes having a predetermined shape;
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;
A heat insulating material foamed in the foam space to heat the storage room;
And a display unit having a shape corresponding to a shape formed by the through holes and at least a part of which is turned on or off so as to display information and is disposed behind the front plate so that the position of the display unit corresponds to the position of the through holes A display unit;
An upper cap including a body portion and an accommodation space formed inside the body portion to receive the display unit, the upper cap being coupled to an upper portion of the front plate; And
A lower cap coupled to a lower portion of the front plate; / RTI >
Wherein the receiving space is formed so that a front surface thereof is opened so that light of the display unit is emitted to the through holes,
Wherein the upper cap is disposed in close contact with the rear surface of the front plate so that the heat insulation of the foam space is prevented from penetrating into the accommodation space. The method according to claim 1,
Further comprising: a sealing member provided on a front surface of the body portion of the upper cap to seal between a body portion of the upper cap and the front plate. The method according to claim 1,
Wherein 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. The method according to claim 1,
Wherein the display unit further comprises a light source part for emitting light and a guide part for guiding the light from the light source part to the display part. 5. The method of claim 4,
Wherein the display unit further comprises a cover sheet formed with the display unit and coupled to the guide unit. The method according to claim 1,
Wherein the predetermined shape of the display unit includes at least one of a figure, a letter, a number, and a symbol. 5. The method of claim 4,
Wherein the guide part includes a guide hole that gradually increases in size from the light source part toward the display part. The method according to claim 1,
And a filler member for filling the through holes. 9. The method of claim 8,
Wherein the filler member is a silicone resin or a UV resin. The method according to claim 1,
And the diameter of the through holes is 0.1 mm to 0.5 mm. The method according to claim 1,
And the distance between the through holes is 0.3 mm to 1.5 mm. The method according to claim 1,
Wherein a thickness of the front plate is 0.6 mm or less. The method according to claim 1,
Wherein the through holes are formed through etching or laser drilling. The method according to claim 1,
Wherein the display unit further comprises an input having an electrostatic touch button,
Wherein the input unit receives a command for operating a refrigerator by sensing a touch of a specific area of the front plate corresponding to the electrostatic touch button. main body;
A storage chamber formed inside the body; And
A door that opens and closes the storage room; Lt; / RTI >
The door
A front plate having a front surface and a side surface of the door and formed of an iron plate material, the front plate having through holes passing through the front plate, the through holes having a predetermined shape;
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;
A heat insulating material foamed in the foam space to heat the storage room;
And a display unit having a shape corresponding to a shape formed by the through holes and at least a part of which is turned on or off so as to display information and is disposed behind the front plate so that the position of the display unit corresponds to the position of the through holes A display unit;
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; / RTI >
Wherein the upper cap comprises:
A receiving space for receiving the display unit;
An insertion groove formed on an upper surface of the display unit to insert the display unit into the accommodation space; And
And a body portion provided on the front, back, left, right, and rear sides of the accommodation space to separate the accommodation space from the foam space. 16. The method of claim 15,
Further comprising: a sealing member provided on a front surface of the support member to seal between the support member and the front plate. 16. The method of claim 15,
And 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. main body;
A storage chamber formed inside the body; And
A door that opens and closes the storage room; Lt; / RTI >
The door
A front plate having a front surface and a side surface of the door and formed of an iron plate material, the front plate having through holes passing through the front plate, the through holes having a predetermined shape;
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;
A heat insulating material foamed in the foam space to heat the storage room;
And a display unit having a shape corresponding to a shape formed by the through holes and at least a part of which is turned on or off so as to display information and is disposed behind the front plate so that the position of the display unit corresponds to the position of the through holes A display unit; And
A filler member filled in the through hole to prevent foreign matter from penetrating into the through hole; Wherein the refrigerator is a refrigerator. 19. The method of claim 18,
Wherein the filler member is a UV paint. 19. The method of claim 18,
And air is removed from the through hole. 19. The method of claim 18,
Wherein the filler member is not overflowed on a front surface or a rear surface of the front plate except the inside of the through hole. 19. The method of claim 18,
Wherein the pillar member is transparent. 19. The method of claim 18,
And the diameter of the through hole is 0.1 mm to 0.5 mm. 19. The method of claim 18,
And the distance between the through holes is 0.3 mm to 1.5 mm. 19. The method of claim 18,
Wherein a thickness of the front plate is 0.6 mm or less. A method of manufacturing a refrigerator having a main body, a storage chamber, and a door that opens and closes the storage chamber, the door having a front plate formed of an iron plate material and having through holes formed in the front plate,
The through holes are formed in the front plate through etching or laser processing,
And filling filler members in the through holes to prevent foreign matter from penetrating into the through holes. 27. The method of claim 26,
Wherein the filler member is a UV paint. 27. The method of claim 26,
Filling the filler member into the through-holes may include:
And attaching a protective vinyl to the front surface of the front plate. 29. The method of claim 28,
Filling the filler member into the through-holes may include:
And applying a pillar member to the inside of the through holes through the back surface of the front plate to which the protective vinyl is not attached. 27. The method of claim 26,
Filling the filler member into the through-holes may include:
And removing air generated inside the through holes. 31. The method of claim 30,
And removing the air generated in the through holes by using a vacuum. 27. The method of claim 26,
Filling the filler member into the through-holes may include:
And a squeegee process for pushing the overflowed filler member to the surface of the front surface or the back surface of the front plate other than the inside of the through hole. A method of filling a filler member in through holes formed in a plate material,
A filler member is applied to the inside of the through holes,
The air generated inside the through holes is removed using a vacuum,
And pushing the overflowed filler member to the surface of the front surface or the back surface of the plate material that is not inside the through holes.

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