JP2017133796A - refrigerator - Google Patents

Abstract

There is provided a refrigerator capable of suppressing leakage of noise generated from a control board for controlling a display device to the outside of the refrigerator door.
A refrigerator body (2), a door body (3) attached to the front surface of the refrigerator body (2) so as to be opened and closed, and a front surface of the door body (3) installed inside the door body (3). A refrigerator (1) comprising an image display device (5) for displaying an image on the display and a display control board (50) for controlling the image display device (5), wherein the door (3) is a display control board. A shield member (36) for blocking noise generated from (50) from leaking out of the door body (3) is provided.
[Selection] Figure 5

Description

  The present invention relates to a refrigerator, and more particularly to a refrigerator structure in which an image display device is mounted on a door body.

  2. Description of the Related Art Conventionally, a refrigerator is known in which an image display device such as a liquid crystal display for displaying various image information on the front surface of the door is provided inside the door. For example, Patent Document 1 discloses a refrigerator including a large image display device.

  In general, an image display device is controlled by a display control board in which a control circuit including a CPU and a memory is mounted on a printed wiring board. In the case of a display control board that operates a digital circuit, a signal on the board is used. The current flowing through the line includes a high frequency, and this high frequency current may be a source of noise. Noise may be radiated not only from signal lines but also from various places such as printed wiring boards and cables as antennas.

  Therefore, in the case of a refrigerator provided with an image display device as disclosed in Patent Document 1, noise radiated from the display control board inside the door body leaks out of the door body, and the electronics around the refrigerator There is a risk of malfunction in equipment.

JP 2014-206321 A

  Then, this invention makes it a subject to provide the refrigerator which can suppress that the noise which generate | occur | produced from the display control part which controls an image display apparatus leaks out of the door of a refrigerator.

  In order to solve the above problems, the refrigerator according to the present invention is configured as follows.

  The present invention relates to a refrigerator main body, a door attached to the front of the refrigerator main body so as to be openable and closable, a display device installed inside the door and displaying an image on the front of the door, and the display A display control unit for controlling the display, wherein the door body includes a shield member for blocking noise generated from the display control unit from leaking out of the door body. And

  According to the present invention, since the door member is provided with the shield member for blocking the noise generated from the display control unit from leaking to the outside of the door body, the noise generated from the display control unit leaks to the outside of the door body. It is possible to prevent the product from being put out, and it is possible to prevent the occurrence of problems in the electronic devices around the refrigerator.

  In the invention, it is preferable that the shield member is configured to cover at least a side of the display control unit.

  According to the present invention, since the shield member is configured to cover at least the side of the display control unit, it is possible to effectively block noise leaking to the outside of the door body through the side wall of the door body.

  In the present invention, an electrical component is provided on the side wall of the door body, and the shield member is a plate-like member extending in the vertical direction along the side wall of the door body, and has an upper end portion or a lower end portion. The part has a through-hole for wiring connected to the electrical component.

  According to the present invention, the shield member has a through-hole for wiring connected to the electrical component at the upper end or lower end thereof, so that necessary wiring for the display device can be connected while blocking noise generated from the display device. can do.

  In the present invention, the shield member is a plate-like member extending in the vertical direction along the side wall of the door body, and has an air supply / exhaust through hole at an upper end portion or a lower end portion thereof. And

  According to the present invention, since the shield member has an air supply / exhaust through-hole at its upper end or lower end, it is possible to achieve both noise and heat blocking properties and heat dissipation from the display device.

  Moreover, this invention has a fixing member which fixes the said display apparatus inside the said door body as said shield member.

  According to the present invention, since the fixing member that fixes the display device to the inside of the door body also serves as the shield member, a reduction in the number of parts can be achieved.

  In addition, the present invention is characterized in that the shield member includes a guide member that slidably supports the display device.

  According to the present invention, since the guide member that slidably supports the display device also serves as a shield member, a reduction in the number of parts can be achieved.

It is a perspective view showing roughly the whole refrigerator of an embodiment of the present invention. It is a perspective view which shows the inner side of the upper door of the refrigerator of FIG. It is a disassembled perspective view which shows the internal structure of the upper door of FIG. It is a longitudinal cross-sectional view in the EE line of the upper door of FIG. It is explanatory drawing explaining the interruption | blocking of the noise which generate | occur | produces from a display control board.

  Hereinafter, the refrigerator 1 of this embodiment according to the present invention will be described with reference to FIGS. 1 to 5.

(Overall configuration of refrigerator)
FIG. 1 is a perspective view schematically showing the entire refrigerator of the present embodiment. As shown in FIG. 1, the refrigerator 1 includes a refrigerator main body 2 in which a refrigerator room (not shown) and a freezer room (not shown) are arranged in the upper stage as a storage room for food and the like. Moreover, the refrigerator 1 is provided with the upper door 3a and the lower door 3b as the one-side-opening type door body 3 on the upper and lower sides of the front Y1 of the refrigerator main body 2, respectively. The refrigerator main body 2 has a plurality of hinge members 4 attached to the right side X1 thereof, and the hinge members 4 support the doors 3 so as to be rotatable in the horizontal direction around the axis extending in the vertical direction Z. ing. Thereby, the upper door 3a can open and close an opening (not shown) on the front face of the refrigerator compartment, and the lower door 3b can open and close an opening (not shown) on the front face of the freezer compartment.

  Each door 3 is provided with an image display device 5 such as a liquid crystal display for displaying an image on the front surface of the door 3. A transparent front plate 6 such as a light transmissive glass plate is provided on the front surface of each door 3 so as to cover the surface of the image display device 5. Moreover, the recessed part 7 for hooking a fingertip when a user opens the door body 3 is formed in the left X2 side surface of each door body 3. As shown in FIG.

  The refrigerator body 2 includes a compressor and a fan motor (not shown) for controlling each room such as a freezing room and a refrigerator room to a set temperature, and a refrigerator body control unit (not shown) for controlling the operation of the compressor and the fan motor. And are provided. A dedicated power supply device (not shown) for supplying power to the image display device 5 is provided on the upper surface of the refrigerator body 2, and an upper cover member 8 is attached so as to cover the dedicated power supply device from above. .

  Here, the image display device 5 can display various images, characters, symbols, and the like as images, and includes display devices such as liquid crystal, plasma, and organic electroluminescence. The image display device 5 may be a television receiver that displays a video of a television program based on a television broadcast signal received by a built-in television tuner.

(Door structure)
Next, the detailed structure of the door body 3 of the refrigerator 1 will be described with reference to FIGS. Note that the lower door 3b is assumed to have a common structure with the upper door 3a unless otherwise specified.

  FIG. 2 is a perspective view showing the inside of the upper door of the refrigerator of FIG. As shown in FIG. 2, the door body 3 is provided with a plurality of steps 11 in the vertical direction Z so that the pocket portions 11 are detachably attached to the inside, and these pocket portions 11 can be accommodated in the opening on the front surface of the refrigerator body 2. Is provided.

  FIG. 3 is an exploded perspective view showing the internal structure of the upper door of FIG. As shown in FIG. 3, the door body 3 includes a door main body unit 20 and an image display unit 30 assembled inside the door main body unit 20.

  4 is a longitudinal sectional view taken along line EE of the upper door of FIG. As shown in FIG. 4, the door body unit 20 includes a door inner plate 21 that forms the inside of the door body 3, and an intermediate plate 22 that is provided to face the door inner plate 21. The door inner plate 21 has a pocket portion 11 attached to the inside thereof, and a gasket 23 attached to the peripheral edge portion in order to make the door body 3 airtight. A space sandwiched between the door inner plate 21 and the intermediate plate 22 is filled and foamed with a heat insulating material 25 such as hard urethane in order to give the door body 3 heat insulation properties.

  The door body unit 20 includes a substantially rectangular parallelepiped frame 26 that accommodates and holds the image display unit 30 therein. The frame body 26 includes a door opening 20a through which the image display unit 30 can pass on the left side surface, and an accommodation space 20b in which the image display unit 30 can be accommodated. The rear surface of the frame body 26 is attached around the front surface of the intermediate plate 22.

  A guide member 28 for guiding the image display unit 30 to the inside of the accommodation space 20b through the door opening 20a is attached to the inside of the frame body 26. In the present embodiment, the guide member 28 extends in the left-right direction X across the opening on the rear surface of the frame body 26, so that the left and right ends of the guide member 28 are on the front side of the opening edge that forms the rear surface of the frame body 26. Is attached. The guide member 28 is a rectangular flat plate member, and has bent portions 28a and 28b whose upper end edge and lower end edge are bent inward in a substantially U shape. The frame body 26 and the guide member 28 are manufactured by sheet metal processing, but may be manufactured by resin molding.

  Further, the door body unit 20 includes a transparent front plate 6 through which the screen of the image display device 5 can be transmitted. The transparent front plate 6 is bonded to the front surface of the frame body 26 by a double-sided adhesive sheet 27. In the present embodiment, the transparent front plate 6 functions as a touch panel type operation device for a user to operate a predetermined application or the like while viewing an image displayed on the image display device 5. The transparent front plate 6 includes a rectangular glass plate 6a and a capacitive transparent electrode film 6b attached to the entire surface of the glass plate 6a, and a finger or the like touches the surface of the transparent electrode film 6b. It is comprised so that the change of the electrostatic capacitance at the time can be detected. The transparent front plate 6 may not be used as an operating device without providing the transparent electrode film 6b. Further, an operating device separate from the transparent front plate 6 may be provided.

  The image display unit 30 includes the image display device 5 and a display control board 50 for controlling the image display device 5 at the center of the back surface of the image display device 5. The display control board 50 is provided with, for example, a control unit composed mainly of a microcomputer having a CPU and a RAM built in the same package, a storage unit composed of RAM, ROM, EEPROM, flash memory, and the like. . The display control board 50 is configured to output an application screen to the image display device 5 by installing predetermined application software or by activating an application software program stored in a built-in storage unit. Composed.

  An engagement member 33 that can be engaged with the guide member 28 of the door body unit 20 is attached to the back surface of the image display device 5. The engaging member 33 is a flat plate member having an opening through which the display control board 50 can be inserted at the center, and an upper surface portion 33a and a lower surface portion formed by bending backward at the upper edge and the lower edge. 33b, and flanges 33c and 33d that are bent in the vertical direction and away from each other from the rear ends of the upper surface portion 33a and the lower surface portion 33b. In addition, a communication hole 33e that communicates in the vertical direction Z is formed in the upper surface portion 33a or the lower surface portion 33b.

  As shown in FIG. 3, the image display unit 30 includes a plurality of board fan motors 31 for cooling the display control board 50. The board fan motor 31 is supported by a fan support member 32 attached to the right end of the engagement member 33. The fan support member 32 is a flat plate-like member extending in the vertical direction Z along the side wall of the door body 3, and has through-holes 32a and 32b for supplying and exhausting air in the upper and lower portions, respectively. In the present embodiment, the substrate fan motor 31 includes two exhaust substrate fan motors 31a and two intake substrate fan motors 31b. The exhaust board fan motor 31 a discharges the warmed air from the accommodation space 20 b through the through hole 32 a provided in the upper part of the fan support member 32. On the other hand, the intake board fan motor 31b takes in the cooled outside air into the accommodation space 20b through a through hole 32b provided in the lower portion of the fan support member 32. Further, rectifying plates 34 a and 34 b are respectively attached to the upper and lower ends of each fan support member 32 in order to efficiently cool the display control board 50 by the board fan motor 31.

  Further, in the present embodiment, a substrate heater 24 for keeping the surroundings is attached to the front surface side of the heat insulating material 25 and in the center of the back surface of the intermediate plate 22 to prevent condensation of the display control substrate 50. ing.

  Here, the frame body 26 of the door body unit 20 includes a door body opening 20a through which the image display device 5 can pass on the left side surface, and can accommodate the image display unit 30 therein via the door body opening 20a. The storage space 20b is provided. That is, the door opening 20a is configured to communicate with the accommodation space 20b. In the present embodiment, only the upper door 3 a is provided with an imaging device 29 such as a CCD camera for imaging the front of the refrigerator 1 above the frame 26.

  As shown in FIG. 4, in a state where the image display unit 30 is accommodated in the accommodation space 20b, the back surface 5a of the image display device 5, and the front surface 22a of the intermediate plate 22 that defines the surface of the accommodation space 20b on the refrigerator main body side Are opposed to each other through a gap G. In the gap G, the flange portions 33c and 33d of the engaging member 33 engage with the bent portions 28a and 28b of the guide member 28 so as to be slidable in the left-right direction X, respectively. Therefore, the image display unit 30 is held by the door body unit 20 so that it can be inserted into or removed from the accommodation space 20b through the door opening 20a.

  A fixing member 35 that fixes the image display unit 30 to the frame body 26 is provided on the left side of the frame body 26 so that the image display unit 30 inserted into the accommodation space 20b does not move in the left-right direction X. The fixing member 35 is a flat plate-like member extending in the vertical direction Z along the side wall of the door body 3, and has through holes 35a and 35b for wiring at the upper part and the lower part, respectively. The fixing member 35 is detachably fixed to the left side surface of the frame body 26 and the left end of the engaging member 33 with a screw or the like.

  In this state, the gap G sandwiched between the front surface 22a of the intermediate plate 22 and the rear surface 5a of the image display device 5 is aligned in the vertical direction Z by the guide member 28 and the engaging member 33 that guide and hold each other as described above. It is defined in three spaces A, B, and C.

  Among these spaces A, B, and C, the upper space A can store the wiring 65 connecting the refrigerator body 2 and the display control board 50, and the space B positioned in the middle can display control. The substrate 50 can be stored. At this time, the wiring 65 extends from the display control board 50 through the communication hole 33e of the engaging member 33 into the space A, and the wiring 65 accommodated in the space A is attached to the inner surface of the frame body 26. The plurality of wiring fixing tools 70 are fixed.

  The door body unit 20 is provided with a left cover unit 41 on the left side, a right cover 42 on the right side, an upper cover 43 on the upper surface, and a lower cover 44 on the lower surface. The left cover unit 41, the right cover 42, the upper cover 43, and the lower cover 44 form a left side wall, a right side wall, an upper wall, and a lower wall as the casing of the door body 3, respectively.

  The left cover unit 41 includes a cover main body 45 that extends in the up-down direction Z and has a concave portion 7 formed on a side surface. The cover main body 45 is mounted with electrical components such as an audio output device 46 such as a speaker, a plurality of LED light emitters 47, an audio input device 48 such as a microphone, and an external connection terminal 49 to which a connector such as a USB can be connected. . The electric wires connected to the electrical components 46, 47, 48, 49 are wired inside the accommodation space 20 b through the wiring through holes 35 a, 35 b provided in the fixing member 35.

  The right cover 42 is a flat plate member extending in the up-down direction Z, and has an exhaust port 42a through which air can be discharged from the housing space 20b to the outside of the door body 3, and the housing space 20b outside the door body 3. And an air inlet 42b capable of taking air from.

(Shield structure of display control board)
FIG. 5 is an explanatory diagram for explaining blocking of noise generated from the display control board 50. As shown in FIG. 5, in the present embodiment, the shield member 36 for blocking the noise generated from the display control board 50 is configured by the engagement member 33, the fan support member 32, and the fixing member 35. The engaging member 33, the fan support member 32, and the fixing member 35 are made of an electromagnetic wave shielding material such as metal, and can be manufactured by sheet metal processing, for example. As a material for the sheet metal, for example, a mild steel plate, a stainless steel plate, an aluminum plate, an aluminum alloy plate, a surface-treated steel plate, a copper plate, a copper alloy plate, or the like can be used.

  The fan support member 32 and the fixing member 35 are formed to have a length that covers at least the space B sandwiched between the engagement members 33c and 33d from the side, and in the present embodiment, the image display device 5 has a vertical Z direction. The length is approximately equal to the length.

  The display control board 50 is covered with a fan support member 32 and a fixing member 35 on the left side X2 and the right side X1, respectively. The noise radiated from the display control board 50 in the left-right direction X is blocked by the fan support member 32 and the fixing member 35 and therefore does not leak out of the door body 3. Similarly, in the display control board 50, the upper Z1 and the lower Z2 are covered with the engaging members 33c and 33d. The noise radiated from the display control board 50 in the vertical direction Z is blocked by the engaging members 33c and 33d, so that it does not leak out of the door body 3.

  Here, in general, the strength of noise is inversely proportional to the distance from the noise source. For this reason, the air supply / exhaust through holes 32a, 32b of the fan support member 32 and the wiring through holes 35a, 35b of the fixing member 35 are all provided at the upper end portion and the lower end portion of each member. Since the noise generated from the display control board 50 is almost blocked by the engaging members 33c and 33d, the noise leaking outside through the through holes 32a, 32b, 35a and 35b is extremely high. Few.

  As described above, according to the present embodiment, the door 33 has the engagement member 33 and the fan support member 32 as the shield member 36 for blocking the noise generated from the display control board 50 from leaking outside the door 3. Since the fixing member 35 is provided, it is possible to prevent the noise generated from the display control board 50 from leaking outside the door body 3 and to prevent the occurrence of problems in the electronic devices around the refrigerator 1. .

  According to the present embodiment, since the fan support member 32 and the fixing member 35 are configured to cover at least the side of the display control board 50, noise leaks outside the door body 3 through the side wall of the door body 3. Can be effectively blocked.

  According to this embodiment, the fixing member 35, which is a plate-like member extending in the vertical direction Z, has through holes 35a for wiring connected to the electrical components 46, 47, 48, 49 at the upper end and lower end thereof. Therefore, it is possible to connect the necessary wiring to the image display device 5 while blocking noise generated from the image display device 5.

  According to the present embodiment, the fan support member 32 that is a plate-like member extending in the vertical direction Z along the side wall of the door body 3 has air supply / exhaust through holes 32a and 32b at its upper end and lower end. Therefore, both the noise generated from the image display device 5 and the heat shielding property and the heat radiation property can be achieved.

  According to the present embodiment, the fixing member 35 that fixes the image display device 5 inside the door body 3 also serves as the shield member 36, so that the number of parts can be reduced.

  According to the present embodiment, the guide member 33 that slidably supports the image display device 5 also serves as the shield member 36, so that the number of parts can be reduced.

  The present invention is not limited to the illustrated embodiment, and various improvements and design changes can be made without departing from the gist of the present invention.

  For example, in the present embodiment, the single-open refrigerator 1 including the upper and lower doors 3a and 3b has been described. However, the present invention is not limited to this, and for example, a refrigerator having a single open door. A refrigerator or the like having three or more single-open doors in the vertical direction Z may be used. Further, in the present embodiment, the single-open refrigerator 1 has been described. However, a double door refrigerator in which two doors that are axially supported at both left and right ends open in the left-right direction X may be used.

  In the present embodiment, the door having a structure in which the image display device 5 is slid in the left-right direction X has been described. However, the present invention is not limited to this, and for example, the guide member 28 extends in the up-down direction Z. Alternatively, the image display device 5 may be slid in the vertical direction Z.

  Furthermore, in the present embodiment, the case where the supply and exhaust through holes 32a and 32b and the wiring through holes 35a and 35b are provided in different shield members 36 has been described. However, the present invention is not limited to this. The air supply / exhaust and wiring through holes may be provided individually or in common in the same shield member 36. Further, only one of the through holes for air supply / exhaust or wiring may be provided in the shield member 36, and none may be provided in the shield member 36.

  As described above, according to the present invention, it is possible to provide a refrigerator that can suppress the noise generated from the display control unit that controls the display device from leaking out of the door of the refrigerator. In the field, there is a possibility of being suitably used.

DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Refrigerator main body 3 Door body 5 Image display apparatus 28 Guide member 32 Fan support member 32a, 32b Through-hole 33a, 33b for supply / exhaust Engagement member 35 Fixing member 35a, 35b Through-hole 36 for wiring 36 Shield member 50 Display Control board

Claims (6)

Refrigerator body, door body attached to the front surface of the refrigerator body so as to be openable and closable, a display device installed inside the door body and displaying an image on the front surface of the door body, and a display for controlling the display device A refrigerator comprising a control unit,
The said door body is provided with the shield member for interrupting | blocking that the noise which generate | occur | produces from the said display control part leaks out of the said door body, The refrigerator characterized by the above-mentioned. The refrigerator according to claim 1, wherein the shield member is configured to cover at least a side of the display control unit. Electrical components are provided on the side wall of the door body,
The shield member is a plate-like member extending in the vertical direction along the side wall of the door body, and has a wiring through-hole connected to the electrical component at an upper end portion or a lower end portion thereof. The refrigerator according to claim 2. The said shield member is a plate-shaped member extended in the up-down direction along the side wall of the said door body, and has a through-hole for supply / exhaust in the upper end part or lower end part. 3. The refrigerator according to 3. The refrigerator according to any one of claims 1 to 4, wherein the shield member includes a fixing member that fixes the display device inside the door body. The refrigerator according to any one of claims 1 to 4, wherein the shield member includes a guide member that slidably supports the display device.