JP4509047B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator, and more particularly, to a refrigerator in which a control board is disposed so as to increase the volume in a warehouse.

  In recent years, even in small and medium-sized refrigerators, a form in which a refrigerator compartment is arranged above the freezer compartment has been increasing, and model development in this form has been promoted.

On the other hand, a conventional refrigerator includes a freezer compartment formed at the top of the main body, a refrigerator compartment formed below the freezer compartment, and an electrical component storage box disposed on one upper side of the refrigerator compartment. In addition, electrical components such as an interior lamp and a temperature sensor, and an electronic control board are accommodated. The storage box is integrally formed with a wall body, and the electronic control board is surrounded by the wall body and the side wall body of the storage box, and the board is fixed to the side wall body. Further, a volume for temperature adjustment is fixed to the substrate, the substrate is separated from the electronic control board, and is closed independently of the storage portion of the electronic control board.
In addition, the temperature sensor is connected to the electronic control board with a lead wire, and the temperature sensor storage portion and the substrate storage portion are isolated (for example, see Patent Document 1).

Japanese Utility Model Publication No. 64-019891 (page 4, line 18 to page 6, line 13, FIGS. 1 and 2)

  The conventional refrigerator has a problem that the volume in the refrigerator is reduced because the electrical storage box is disposed on one side of the refrigerator compartment.

  Further, there is a problem in that the operation position of the freezer temperature control shutter is difficult to operate in the freezer compartment in the form in which the refrigerator compartment is arranged in the upper part of the freezer compartment.

  Furthermore, there is a problem that the temperature control board is separated from the electronic control board, and the number of parts is large and expensive.

  In addition, since the electrical component storage box to which the interior lamp is fixed is arranged on one side of the refrigerator compartment, there is a problem that the design is poor in the embodiment in which the refrigerator compartment is arranged in the upper part of the refrigerator compartment.

  Moreover, since the electrical component storage box to which the interior lamp is fixed is disposed on one side of the refrigerator compartment, there is a problem that the interior illumination is not uniform.

  In addition, there is a problem that only the front face of the blowout opening is cooled at the blowout opening in the flat portion.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to increase the volume in the cabinet by arranging the electronic control board in the refrigerator compartment.

  Another object is to improve the operability of temperature control in the freezer compartment.

  Furthermore, it aims at improving the operativity of temperature control of a refrigerator compartment, and making it cheap by reducing the number of parts.

  Moreover, it aims at improving the designability of a refrigerator compartment.

  Another object is to uniformly illuminate the refrigerator compartment.

  Another object is to uniformly cool the refrigerator compartment.

The present invention relates to a freezer compartment disposed in the lower part of the refrigerator main body, a refrigerating room disposed on the freezer compartment, and a control disposed in a substantially central portion in the left-right direction of the back wall portion of the refrigerating room. a substrate having a shunt portion for guiding the left and right sides of the control board by diverting cooled cold air by the cooler, the cold Kida transfected directing cool air to the refrigerating chamber, so as to cover the front surface of the control board has a convex substrate housing portion for housing, and a duct cover for covering the cooling Kida extract, the duct cover includes a shutter for varying the amount of cool air passing through the shunt portion of the cold air duct, the shutter supporting a support and movement mechanism portion which is movable in the width direction of the refrigerating compartment, provided in the support and movement mechanism so as to be positioned at the bottom center portion of the substrate housing portion, the shutter through the supporting-moving mechanism The area of the cold air passing through the shunt portion of the cold air duct is the same. It is obtained by an operation knob for air-flow control for varying the.

According to the present invention, the cool air cooled by the cooler is diverted by the shunt portion of the cool air duct and guided to the left and right sides of the control board, so that the refrigerator compartment is uniformly cooled while cooling the control board. can do. The duct cover has a shutter for changing the amount of cold air passing through the shunt portion of the cold air duct, a support / moving mechanism portion that supports the shutter and is movable in the width direction of the refrigerator compartment, and a substrate storage portion. When the shutter is moved via the support / moving mechanism, the area of cold air passing through the shunt portion of the cold air duct is simultaneously changed. Since the operation knob for adjusting the temperature of the freezer compartment is provided, the operability is improved as compared with the conventional case where the operation knob for adjusting the temperature of the freezer compartment is provided in the freezer compartment.

  1 to 10 show a refrigerator according to an embodiment of the present invention. FIG. 1 is a front view of the refrigerator, FIG. 2 is a detailed front view of the back as viewed from the refrigerator compartment side, and FIG. 4 is a cross-sectional view taken along the line BB in FIG. 2, FIG. 5 is a perspective view of the substrate storage unit, FIG. 6 is a perspective view of the duct cover and attachment parts in the back of the refrigerator compartment, and FIG. FIG. 8 is an enlarged perspective view of the main part of FIG. 7, FIG. 9 is a rear perspective view of the cooling air duct and the electronic control board, etc. of FIG. 7 removed, and FIG. It is an expansion perspective view of the shutter attachment part of FIG.

As shown in FIGS. 1-3, the refrigerator main body 1 is comprised by foam-filling the heat insulating material 19 between the outer box 11 made from a steel plate, and the inner box 12 made from resin, and the top is the refrigerator compartment 3, Below is a freezer compartment 2, a refrigerator compartment door 5 is provided in the refrigerator compartment 3, and a freezer compartment door 4 is provided in the freezer compartment 2.
A drawer case 21 is disposed at the lower part of the refrigerator compartment 3, and a shelf 22 is disposed at the upper part of the drawer case 21. An electronic control board 9 is disposed at the upper part of the shelf 22 and the central part in the left-right direction of the back wall part of the refrigerator compartment 3. In addition, a cooler 25 and a blower 26 are disposed on the back of the freezer compartment 2, and the cool air blown by the blower 26 passes through the inside of the cold air duct 27 disposed in the back wall portion of the refrigerating compartment 3, and enters the refrigerating compartment 3. Discharged.

  Further, a plastic duct cover 28 is disposed on the front side of the cold air duct 27. In the duct cover 28, as shown in FIGS. 3, 5, and 6, the front surface of the electronic control board 9 fixed to the board housing frame 40 integrally formed with the duct cover 28 is covered at the substantially right and left central portions. Thus, the board | substrate storage part 20 is formed by providing the board | substrate storage convex part 28b whose back side is concave shape and whose front side is convex shape.

As shown in FIGS. 3, 5, 6, 7, and 9, the substrate storage portion 20 is formed by providing a frame-like member 40 on the back side of the substrate storage portion convex portion 28 b of the duct cover 28. The electronic control board 9 is housed on the side, and the back surface of the board housing portion 20 is covered with a sealing material 38. In addition, a recess 12 a is provided in the inner box 12 on the back side of the electronic control board 9.
Further, a volume 14 which is a temperature adjusting means connected to the refrigerator compartment temperature adjustment dial 23 is mounted on the electronic control board 9, and between the refrigerator compartment temperature adjustment dial 23 and the duct cover 28 provided with a dial rotating portion. The sealing material 33 blocks a hole through which the volume 14 serving as temperature adjusting means passes.
Further, a heat radiating rib 39 having a height of about 5 mm is provided on the front side of the substrate storage unit 20. In addition, the substrate storage portion 20 of the duct cover 28 is disposed at a position that is an upper portion of the drawer case 21 of the refrigerator compartment 3.

  The duct cover 28 is provided adjacent to the upper portion of the substrate storage portion 20 (substrate storage convex portion 28b), and the interior lamp 7 for illumination in the refrigerator compartment 3 is disposed. An arcuate concave interior lamp recess 28c that is covered and has a gentle cross section, and is provided so as to pass vertically on both sides of the substrate storage section convex section 28b and the interior lamp recess 28c, and has a blowout opening 36. An arcuate recess 28a is provided. Note that a louver bar is attached to the air outlet 36.

As shown in FIGS. 7 to 10, a pair of shutters 29 for adjusting the air volume of the cold air duct 27 on both the left and right sides of the cold air duct 27 and adjusting the temperature of the freezer compartment 2 are attached to the duct cover 28 to support the shutter 29. The rod-like member 29a on the left and right, which is the supporting / moving mechanism to be moved
A shutter catch claw 30 and a shutter guide rib 31 are provided.

  As shown in FIG. 10 (a), the pair of shutters 29 are integrally molded products connected to the left and right by bar-shaped members 29a, and are disposed in the lower central portion of the substrate storage unit 20, so A freezer temperature control knob 24, which is a knob, is provided. Further, as shown in FIG. 10B, a rod-shaped member 29a extending to the left and right of the shutter 29 is fixed in the vertical direction and the depth direction by a shutter receiving claw 30 and a shutter guide rib 31 integrally formed with the duct cover 28. 8, the shutter 29 is moved left and right in the shutter moving groove 32 of the cold air duct 27 in conjunction with moving the freezer compartment temperature adjustment knob 24 provided on the rod-like member 29 a of the shutter 29 left and right. .

The shutter 29 shown in FIG. 10A has a freezer compartment temperature adjustment knob supporting end opposite to the freezer compartment temperature adjustment knob 24 as shown in FIG. It attaches so that the part 24a may become the back side.
The duct cover 28 incorporates a temperature sensor 15 and the like in addition to the refrigerator temperature adjusting dial 23, the temperature adjusting shutter 29 for the freezer compartment 2, the freezer temperature adjusting knob 24, and the like.

  The cold air duct 27 extends in the vertical direction on both sides of the substrate housing portion 20 at the back of the inner box 12 of the refrigerator compartment 3 so as to cover the duct main body 35 having a concave cross section and the opening of the duct main body 35. The cold air duct seal material 37 is attached to the cold air duct seal material 37, and the cold air duct seal material 37 is in contact with the inner wall surface of the inner box 12.

Next, operation | movement of the refrigerator of embodiment comprised as mentioned above is demonstrated.
A part of the cool air cooled by the cooler 25 is divided into two by the blower 26 at the branch portion of the cool air duct 27 and proceeds to the left and right cool air ducts 27. The shutters 29 provided on the left and right sides of the cool air duct 27 are connected to the rods of the shutter 29. The freezer temperature control knob 24 provided on the member 29a is moved to the left and right, the area through which the cool air passes is changed by the shutter 29, and the amount of cool air blown into the refrigerating chamber 3 from the blowout opening 36 of the duct cover 28 is changed. As a result, the amount of cold air to the freezer compartment 2 is changed, and the temperature of the freezer compartment 2 is adjusted.
At this time, since the air outlet 36 of the cool air duct 27 is provided in the recesses 28a disposed on the left and right sides of the substrate storage unit 20, the cool air is cooled in the direction perpendicular to the surface of the recesses 28a while cooling the electronic control board 9. The refrigeration chamber 3 is uniformly cooled.

The cold air that has cooled the inside of the refrigerator compartment 3 returns to the lower part of the cooler 25 through a suction duct (not shown), is cooled again, and circulates in the refrigerator compartment 3. In the freezer compartment 2 as well, a part of the cooling air blown by the blower 26 is blown and circulated through a freezer duct (not shown).
In the present embodiment, the air volume is adjusted by adjusting the air volume by arranging a shutter 29 in the cold air duct 27 instead of the damper to adjust the air volume of the refrigerator compartment 3, and cooling based on the temperature detected by the temperature sensor 15 in the refrigerator compartment 3. The operation of the device 5 and the blower 26 is controlled.

As described above, in the freezer compartment 2 disposed in the lower part of the refrigerator main body 1, the refrigerating chamber 3 disposed on the freezer compartment 2, and the substantially central portion in the left-right direction of the back wall portion of the refrigerating chamber 3. An electronic control board 9 disposed on the left and right sides of the electronic control board 9; a cool air blow duct 27 for guiding the cool air cooled by the cooler 25 to the refrigerator compartment 3 by the blower 26; and the electronic control board 9 has a convex board storage convex portion 28b that covers and accommodates the front surface of 9 and a duct cover that covers the cold air blowing duct 27. Therefore, the rear heat insulating material is reduced and the internal volume is increased. Can do.
Further, the back surface of the substrate housing frame 40 of the substrate housing portion 20 is covered with a sealing material 38 and the substrate housing portion 20 is hermetically sealed by using a closed-cell sealing tape 18 at the outlet portion of the lead wire 16, thereby providing a refrigerant. Even when the refrigerant leaks, the hydrocarbon in the substrate storage unit 20 can be made to have an ignition concentration or less, and the hydrocarbon can be used as the refrigerant.

Further, by denting the inner box 12 on the back side of the electronic control board 9, the board housing portion 20 can be prevented from protruding to the inner side, and the internal volume can be increased.
Furthermore, the depth of the drawer case 21 can be increased by arranging the substrate storage unit 20 on the upper part of the drawer case 21.
In addition, since the cool air ducts 27 are arranged on the left and right sides of the substrate storage unit 20, the electronic control board 9 can be cooled well.
In addition, since the rib 39 having a height of about 5 mm is provided on the front side of the substrate storage convex portion 28b of the substrate storage portion 20, the cooling efficiency of the electronic control board 9 can be increased. It can prevent that the board | substrate storage part 20 which becomes high, and the foodstuff accommodated in the store | warehouse | chamber contact.

The duct cover 28 is provided in the shutter 29 for adjusting the air volume of the cold air duct 27, a support / movement mechanism for supporting and moving the shutter 29, and the lower center of the substrate storage unit 20. Since the freezer temperature control knob 24 disposed in the section is provided, the operability can be improved.
In addition, by disposing the freezer temperature control knob 24 on the top of the shelf 22 of the refrigerating room 3, it can be arranged at an easy-to-use height, so that operability is improved.
In addition, by placing the refrigerator compartment temperature adjustment dial 23 on the upper part of the freezer compartment temperature adjustment knob 24, it is possible to concentrate the temperature adjustment in one place, improve visibility, and improve operability. it can.

  In addition, the refrigerator compartment temperature adjustment dial 23 of the refrigerator compartment 3 is disposed on the front surface of the substrate storage unit 20, and the volume 14 connected to the refrigerator compartment temperature adjustment dial 23 is mounted on the electronic control board 9. This eliminates the need for a separate substrate to be manufactured, thereby reducing the cost.

Further, since the interior lamp 7 is disposed above the substrate storage section 20 and the interior lamp cover 34 is disposed adjacent to the upper portion of the substrate storage section 20 so as to cover the interior lamp 7, the rear side of the refrigerator compartment is kept It becomes a shape with a feeling and can improve the design.
Further, by combining the left and right widths of the interior light cover 34 and the left and right widths of the substrate storage portion 20, a shape that communicates vertically is obtained, and a sense of unity is obtained and design is good.
Further, the interior light 7 and the interior light cover 34 are arranged at the upper center of the back surface of the refrigerator compartment 3, so that the entire refrigerator compartment 3 can be illuminated.

In addition, the duct cover 28 is formed above the substrate storage unit 20, and has an interior lamp recess 28 c having a circular arc shape in which the interior lamp 7 and the interior lamp cover 34 are provided, and the interior lamp recess 28 c Since the concave portion 28a having an arcuate cross section formed on both sides of the substrate storage unit 20 is provided, light from the side surface of the interior light cover 34 is reflected by the arcuate cross section 28a and refrigerated by indirect light. Lighting in the chamber 3 can be performed.
Furthermore, since the recessed part 28a is arranged passing up and down, the light from the interior lamp 7 can be reflected through the recessed part 28a, so that the lower part without the interior lamp cover 34 can be illuminated, and the refrigerator compartment The entire 3 can be illuminated uniformly.

In addition, since the cold air outlet 36 is provided in the concave portion 28a having a substantially arc shape in cross section, the cold air passes through the refrigerator compartment 3 obliquely from the outlet 36 so that the refrigerator 3 can be uniformly cooled.
Further, by arranging the air outlet 36 of the duct cover 28 that blows out the cold air from the cold air duct 27 in the concave portion 28a, the cold air can be blown out in the direction perpendicular to the surface of the concave portion 28a, and the rear wall portion of the refrigerator compartment 3 Cold air is blown out from the outside to the center side, and the inside of the refrigerator compartment 3 can be cooled uniformly.

In addition to the cold air duct 27, the refrigerator temperature adjusting dial 23, the shutter 29 of the freezer compartment 2, the freezer compartment temperature adjusting knob 24, etc., the duct cover 28 incorporates main components such as the temperature sensor 15. Since the electronic control board 9, the temperature control unit, the interior lighting device, the temperature sensor 15, and the cold air duct 27 can be removed at the same time as the duct cover 28 is removed at the time of repair service, repair work can be performed outside the warehouse. , Workability can be improved.
Further, since a large number of parts are incorporated in the duct cover 28, the number of parts can be reduced and the cost can be reduced.

Further, since the shutter 29 enters from the front side of the cold air duct 27, the cold air duct 27 can be removed without removing the shutter portion.
Further, a cold air duct seal material 37 is attached to the back surface of the cold air duct 27 so as to cover the cold air passage portion so that the cold air does not escape from other than the blowout opening 36, and the cold air duct seal material 37 is a thin sheet. It is not crushed at the time of assembly, and can be used without changing the cold air duct seal material 37 of the cold air duct 27 again after being removed.

  As described above, the electronic control board 9 and the board storage part 20 for storing the electronic control board 9 are disposed at the center of the rear wall surface above the drawer case 21 arranged at the lower part of the refrigerator compartment 3, and the board storage part 20 is connected to the volume 14 of the electronic control board 9 on the front face, and a refrigerator temperature adjusting dial 23 for adjusting the temperature of the refrigerator compartment 3 is disposed, and below this, an air volume adjusting shutter 29 for adjusting the temperature of the freezer compartment 2. The freezer temperature control knob 24 for operating is disposed, and further, the interior light 7 and the interior light cover 34 are disposed on the upper part of the substrate storage unit 20, so that the volume in the interior can be increased, Further, the refrigerator temperature control dial 23 and the freezer temperature control knob 24 are integrated to improve the operability, and the design is improved by the unity feeling that the interior light cover 34 and the substrate storage unit 20 are arranged vertically. .

It is a front view of the refrigerator which shows embodiment of this invention. It is the detailed front view of the inner part seen from the refrigerator compartment side of the refrigerator which shows embodiment of this invention. It is AA sectional drawing in FIG. It is BB sectional drawing in FIG. It is a perspective view of the board | substrate storage part of the refrigerator which shows embodiment of this invention. It is a perspective view, such as a duct cover and attachment parts of the refrigerator compartment back part of the refrigerator which shows embodiment of this invention. It is a back perspective view when the back wall part of the refrigerator which shows embodiment of this invention is removed. It is a principal part expansion perspective view of FIG. FIG. 8 is a rear perspective view when the cold air duct, the electronic control board, and the like of FIG. 7 are removed. It is an expansion perspective view of the shutter attachment part of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Refrigerator main body, 2 Freezing room, 3 Refrigeration room, 7 Interior light, 9 Electronic control board, 12 Inner box, 12a Recessed part, 14 Volume, 20 Board storage part, 23 Refrigeration room temperature control dial, 25 Cooler, 26 Blower 27 Cold air duct, 28 Duct cover, 28a recess, 28b Substrate storage convex portion, 28c Recess for interior light, 29 Shutter, 34 Interior light cover, 36 frontage, 39 rib, 40 Substrate storage frame.

Claims (5)

A freezing room disposed at the bottom of the refrigerator body;
A refrigerator compartment disposed above the freezer compartment;
A control board disposed in a substantially central portion in the left-right direction of the back wall portion of the refrigerator compartment;
By shunting the cooled cold air by the cooler has a shunt portion for guiding the left and right sides of the control board, and a cold Kida transfected directing cool air to the refrigerating chamber,
Has a convex substrate housing portion for housing so as to cover the front face of the control board, and a duct cover for covering the cooling Kida extract,
The duct cover is
A shutter for varying the amount of cold air passing through the shunt portion of the cold air duct;
The shutter is supported, and the support and movement mechanism portion which is movable in the width direction of the cooling chamber,
Provided in the supporting-moving mechanism so as to be positioned at the bottom center portion of the substrate storage unit, when moving the shutter via the supporting-moving mechanism, the cool air of the shunt portion of the cold air duct A refrigerator comprising an operation knob for adjusting the temperature of the freezer compartment, the passage area of which is variable at the same time . Arranged temperature control dial of the refrigerating chamber on the front surface of the substrate housing portion, a refrigerator according to claim 1 Symbol mounting, characterized in that the temperature adjusting means connected to said temperature adjustment dial mounted on the control board. And disposed interior lamp above the substrate storage unit, according to claim 1 or 2, wherein adjacent the top of the substrate receiving portion, characterized in that arranged the interior lamp cover which covers the in-compartment lamp Refrigerator. The duct cover is
A recessed portion for the interior lamp having an arc shape in cross section provided above the substrate storage portion and provided with the interior lamp and the interior light cover,
The refrigerator according to claim 3 , further comprising: a recess for the interior lamp and a recess having an arcuate cross section formed vertically on both sides of the substrate storage portion. The refrigerator according to claim 4 , wherein a cold air outlet is provided in the recess having a substantially arc shape in cross section.

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