JP2017215097A - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure a sufficient opening area of a ventilation part in a structure where the ventilation part for ventilation is provided at a cover covering a machine room.SOLUTION: A refrigerator according to one embodiment includes: a machine room provided at a refrigerator body; a cover which is attached so as to cover a back surface of the machine room; an opening formed in the cover; and a plate-like ventilation member which is attached to the cover to close the opening, has a ventilation part, and is made of a synthetic resin.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to a refrigerator.

  Conventionally, in a household refrigerator, a compressor, a condenser, a blower fan that blows cooling air to the compressor chamber, and the like are disposed in a machine room provided on the rear side of the lower part of the refrigerator body, and the back of the machine room A cover made of a metal plate is attached so as to cover. At this time, the cover is formed with a plurality of horizontally elongated slits, for example, vertically and horizontally (for example, see Patent Documents 1 and 2). In addition, this slit-shaped ventilation hole is made into the magnitude | size which does not enter a child's finger | toe individually.

Japanese Patent No. 3676901 Japanese Patent No. 3855143

  In the case where a slit-shaped vent is formed in a cover made of a metal plate as described above, due to processing restrictions when punching and forming a slit in the cover, a portion that becomes a cross between the slit and the slit (the cover and There is a situation in which the width dimension cannot be reduced for the portion where the material is continuous. As a result of having to ensure a relatively large width dimension of the portion that becomes the cross as described above, it cannot be said that the area of the vent as a whole is sufficiently obtained. As a result, cooling air is not sufficiently blown to components such as a compressor and a condenser, which may cause insufficient cooling.

  In view of this, there is provided a refrigerator that is provided with a ventilation portion in a cover that covers a machine room and that can secure a sufficient opening area of the ventilation portion.

  The refrigerator of the embodiment includes a machine room provided in the refrigerator body, a cover attached so as to cover the back surface of the machine room, an opening formed in the cover, and the cover covering the opening. And a plate-like ventilation member made of synthetic resin and having a ventilation portion.

The right side view of the vertical section of the refrigerator body, showing an embodiment External perspective view of the refrigerator body from diagonally behind Rear view of machine room cover View of the left side of the cover as seen from the outside The left side of the cover as seen from the inside Cross-sectional top view showing mounting structure of ventilation member It is a cross-sectional top view of a ventilation member, (a) is a cross section which follows the AA line of FIG. 4, (b) is a figure which shows the cross section which follows the BB line of FIG. Schematic top view showing an example of the arrangement relationship between the wall of the room and the refrigerator main body in a cross section

  Hereinafter, an embodiment will be described with reference to the drawings. First, with reference to FIG.1 and FIG.2, the whole structure of the refrigerator which concerns on this embodiment is described easily. The refrigerator main body 1 is configured by providing a plurality of storage chambers in a vertically long rectangular box-shaped heat insulation box 2 whose front surface is open. Specifically, in the heat insulation box 2, a refrigerator compartment 3, an upper freezer compartment 4, a vegetable compartment 5, and a lower freezer compartment 6 are provided in this order from the top. Although not shown, the portion of the heat insulating box 2 where the upper freezer 4 is provided is partitioned into two left and right rooms, the upper freezer 4 is provided on the right side, and the ice making room is provided on the left side. Yes. A known automatic ice making device is provided in the ice making chamber.

  The refrigerator compartment 3 and the upper freezer compartment 4 (and the ice making room) are partitioned vertically by a heat insulating partition wall 7, and the upper freezer compartment 4 (and the ice making room) and the vegetable compartment 5 are insulated by a heat insulating partition wall. The vegetable compartment 5 and the lower freezing compartment 6 are partitioned vertically by a heat insulating partition wall 9. A hinged open / close heat insulating door 10 is provided on the front surface of the refrigerator compartment 3. A drawer-type heat insulating door 11 is provided on the front surface of the upper freezer compartment 4, and a storage container 12 is connected to the back surface of the heat insulating door 11. A drawer-type heat insulating door 13 to which a storage container 14 is connected is also provided on the front surface of the vegetable compartment 5. A drawer-type heat insulating door 15 to which a storage container 16 is connected is also provided on the front surface of the freezer compartment 6.

  Although not shown in detail in the refrigerator main body 1 as a whole, the refrigerator compartment cooler 17 for cooling the refrigerator compartment 3 and the vegetable compartment 5 and the upper and lower refrigerator compartments 4 and 6 (and ice making) are provided. A refrigeration cycle comprising two coolers with a freezer cooler for cooling the chamber) is incorporated. A machine room 18 that opens at the back of the refrigerator body 1 is provided on the back side of the lower end of the refrigerator body 1. Although not shown in detail, a compressor 19 and a condenser constituting the refrigeration cycle are provided in the machine room 18. A cooling fan device 20 (see FIG. 8) for cooling them, a defrost water evaporating dish, and the like are provided. A control device 21 in which a microcomputer or the like for controlling the whole is mounted is provided near the rear lower portion of the refrigerator main body 1.

  Further, as will be described later, the rear surface of the machine room 18 is covered with a cover 25. At this time, as shown in FIG. 8, the compressor 19 is disposed in a right side portion of the machine room 18, and the cooling fan device 20 is located slightly to the left in the center in the left-right direction. Is arranged. A capacitor (not shown) and the like are provided on the left side of the cooling fan device 20. As shown by an arrow C in FIGS. 3 and 8, the cooling fan device 20 is configured to blow cooling air from left to right (in FIG. 3, from right to left). In this case, when looking at the upstream and downstream of the cooling air flow of the cooling fan device 20 in the machine room 18, the upstream side (left side in the figure) is narrower than the downstream side (right side in the figure), in other words. And the area of the cover 25 is small.

  As shown in FIG. 1, a refrigerator room 22 for the refrigerator compartment is provided on the back wall portion of the vegetable compartment 5 in the refrigerator body 1, and the refrigerator compartment 22 for the refrigerator compartment is located at the lower part. In addition, the refrigerator 17 for the refrigerator compartment is disposed, and the blower fan 23 is disposed at the upper part. Thus, when the blower fan 23 is driven, the cold air generated by the refrigerator for the refrigerator compartment 17 is supplied into the refrigerator compartment 3 through the blowout duct 24, and then supplied into the vegetable compartment 5. Circulation is performed such as returning to the refrigerator room 22 for the refrigerator compartment.

  Further, although not shown, a refrigerator room for a freezer compartment is provided on the back wall of the vegetable compartment 5 in the refrigerator body 1 on the left side of the refrigerator compartment 22 for a refrigerator compartment. The freezer compartment cooler is provided with a freezer compartment cooler, a freezer compartment blower fan, and the like so as to supply cold air to the upper and lower freezer compartments 4 and 6 (and the ice making compartment). It has become. FIG. 8 shows an example of the installation state of the refrigerator body 1, and the refrigerator body 1 is arranged so that, for example, the left and right side surfaces and the back surface side are surrounded by the wall W of the room with a slight gap. The

  As shown in FIGS. 2 and 3, a cover 25 that is attached to cover the back of the machine room 18 is attached to the back of the refrigerator body 1. In the present embodiment, the cover 25 is configured by attaching a ventilation member 27 to the cover body 26 as shown in FIGS. In the present embodiment, the ventilation member 27 is provided on the upstream side (the left side in the drawing) where the area of the cover 25 is small among the upstream side and the downstream side of the cooling air flow of the cooling fan device 20 in the machine room 18. . Hereinafter, the cover 25 will be described in detail with reference to FIGS.

  As shown in FIG. 3 and the like, the cover body 26 is formed from a metal plate such as an iron plate, for example, in a horizontally long rectangular plate size that closes the opening, and as shown in FIG. The side portions are located at the left and right corner portions of the back portion of the refrigerator main body 1 and are bent portions 26 a and 26 b that are bent obliquely. Although not shown in detail, a flange portion having a plurality of screw insertion holes is integrally provided on the outer peripheral edge portion of the cover body 26, and the flange portion of the refrigerator body 1 (heat insulating box 2) is screwed at the flange portion. Installed with a stop.

  As shown in FIG. 3, the cover main body 26 is formed with a plurality of exhaust vent holes 28 on the right side (left side in FIG. 3), that is, on the side close to the compressor 19. These vent holes 28 are formed in a horizontally long slit shape, and are provided side by side in the vertical and horizontal directions, and a plurality of the air holes 28 are provided in the vertical direction at the bent portion 26b. These vent holes 28 (and an opening 29 described below) are formed by punching. In addition, the size of each vent hole 28 is set such that a child's finger cannot enter.

  An opening 29 having a slightly horizontally long rectangular shape is formed on the left side of the cover body 26 (right side in FIG. 3), that is, at a position away from the compressor 19. At this time, the opening 29 extends to the bent portion 26a and is formed so as to include a part of the bent portion 26a. Further, as shown in FIGS. 5 and 6, the cover main body 26 is formed with mounting holes 30 for mounting the ventilation member 27 at two positions on the left and right sides of the upper and lower portions of the opening 29. ing. Although detailed illustration and description are omitted, the cover main body 26 is configured to have a bead shape, for example, in order to improve strength.

  The ventilation member 27 is configured as follows. That is, the ventilation member 27 is made of a synthetic resin, for example, a molded product of flame retardant ABS resin, and has a rectangular plate shape that closes the opening 29 as a whole. At this time, the ventilation member 27 is formed in a form integrally including the flange portion 31 at the outer peripheral portion and the ventilation portion 32 inside thereof. The ventilation member 27 has a shape in which the left side portion is slightly bent in accordance with the bent portion 26 a of the cover body 26.

  As shown in FIGS. 3 and 4, the flange portion 31 is formed in a rectangular frame shape having a substantially constant width so as to be addressed around the four sides of the opening 29 on the outer surface (back surface) side of the cover body 26. Has been. At the same time, on the inner surface (front surface) side of the flange portion 31, a total of four hook portions 31 a for attachment are provided at two positions on the left and right sides of the upper and lower sides. These hook portions 31a are inserted into the mounting holes 30 of the cover body 26 from the back side, and then slid in the right direction (left direction as viewed from the back side). It arrange | positions so that the cover main body 26 may be pinched | interposed between the inner surfaces of the part 31, Therefore, it plays the role which engages and fixes the ventilation member 27 to the cover main body 26. FIG.

  As shown in FIGS. 4 and 5, the ventilation portion 32 includes a horizontal beam 34 extending in the horizontal direction and a vertical beam 35 extending in the vertical direction in a region corresponding to the opening 29 inside the flange portion 31. It is configured in a lattice shape so as to have a large number of horizontally elongated slits for ventilation (for intake). The horizontal rails 34 extend in the left-right direction inside the flange portion 31 and are provided at minute equal intervals in the vertical direction. The vertical bars 35 are provided so as to connect the horizontal bars 34 vertically. In this case, the vertical bars 35 are discontinuously arranged in the vertical direction. Specifically, they are provided so as to be shifted by half a pitch in order in the vertical direction.

  In addition, the size of each slit of the ventilation part 32 is sufficiently small so that a child's finger cannot enter. Further, at this time, the distance between adjacent slits in the ventilation portion 32 formed of a plurality of slits formed in the ventilation member 27 is such that the adjacent ventilation holes 28 in the plurality of ventilation holes 28 formed in the cover body 26 are adjacent to each other. Both the vertical and horizontal directions are shorter than the separation distance.

  Furthermore, the back (outer surface) side and the front (inner surface) side of the ventilation part 32 of the ventilation member 27 are not configured to be flat as a whole, but are slightly configured to be uneven. . Specifically, as shown in FIG. 5, when viewed from the inner surface side (front side) of the ventilation portion 32 of the ventilation member 27, the rectangular area “a” in the lower right in FIG. 5 and the upper left rectangle in FIG. 5. The region b is formed as convex portions 32a and 32b bulging inward from the other portions, and the other portion is defined as a concave portion 32c. Further, on the outer surface side opposite to that of the ventilation portion 32, the back surfaces of the convex portions 32a and 32b are concave portions 32d (the other portions are convex portions). Although not shown in the drawing, a pipe constituting a part of the refrigeration cycle is disposed in the concave portion 32c portion of the inner surface of the ventilation member 27, so that the pipe and the ventilation member 27 are prevented from contacting each other.

  As described above, the ventilation member 27 configured as described above is inserted into each mounting hole 30 of the cover main body 26 and is slid, so that the ventilation member 27 is directed to the outer surface (back surface) side of the cover main body 26. As shown, the cover body 26 is attached. As shown in FIG. 6, when a gap is generated between the flange portion 31 and the cover body 26 when the ventilation member 27 is attached, a sound absorbing material for preventing vibration, such as a soft tape 33, is interposed therebetween. It has come to be.

  Next, the operation and effect of the above configuration will be described. During the operation of the refrigeration cycle, the cooling fan device 20 is driven in the machine room 18 to cool the compressor 19 and the condenser. Then, the air is blown from the left to the right as shown by the arrow C in FIGS. 8 and 3, and the outside air in the machine room 18 passes through the gap between the wall W and the ventilation portion 32 of the cover 25. Sucked through. Then, the sucked cooling air flows through the machine chamber 18 and contributes to cooling of the compressor 19 and the condenser, and is then discharged from the vent hole 28 of the cover 25 to the outside.

  At this time, the ventilation member 27 is attached so as to close the opening 29 of the cover 25 (cover body 26) on the rear surface of the machine room 18, and ventilation, particularly inhalation, to the machine room 18 is performed by the ventilation part 32 of the ventilation member 27. Made. Since the ventilation member 27 is made of synthetic resin, unlike the case of punching the cover main body 26 made of a metal plate, the processing restrictions are eased and the horizontal beam 34 and the vertical beam are formed when the lattice-shaped opening is formed. 35 can be formed with a sufficiently narrow width.

  As a result, the distance between adjacent slits in the ventilation portion 32 formed of a plurality of slits formed in the ventilation member 27 is set to be the distance between the adjacent ventilation holes 28 in the plurality of ventilation holes 28 formed in the cover body 26. It could be constructed shorter than the distance. As a result, according to the present embodiment, the number of individual slits in the ventilation portion 32 can be increased, and the entire opening area of the ventilation portion 32 can be sufficiently increased. As a result, a sufficient amount of cooling air can be obtained. It became possible to secure.

  In particular, in the present embodiment, the side portions of the cover 25 (cover body 26) are provided with bent portions 26a and 26b arranged at the corner portions of the refrigerator body 1, and the ventilation portion 32 and the ventilation hole 28. However, it is provided so that a part of those bending parts 26a and 26b may be included. Thereby, a relatively wide space can be secured between the bent portions 26a and 26b and the wall W of the chamber, efficient ventilation can be performed through the gap portion, and a large air volume can be secured. Is possible. Further, since the ventilation portion 32 having a large opening area is disposed at a position separated from the compressor 19 in the machine room 18, it is possible to suppress the noise from the compressor 19 from being emitted to the outside.

  Further, in the present embodiment, the ventilation member 27 is provided on the upstream side where the area of the cover 25 is small, among the upstream side and the downstream side of the cooling air flow of the cooling fan device 20 in the machine room 18. As a result, a sufficient opening area can be secured in the cover 25 even on the upstream side of the cooling air, and the opening area on the upstream side (intake side) and the downstream side (exhaust side) are made equal to each other. A good flow of can be obtained.

  Furthermore, especially in this embodiment, several merits can be acquired by giving the following various devices regarding the ventilation member 27. That is, the ventilation member 27 is configured to be engaged and fixed to the cover body 26 by a hook portion 31 a having a spring property provided in the flange portion 31. As a result, the mounting work of the ventilation member 27 is simplified, and the number of parts is not increased, and an inexpensive and simple configuration can be achieved. By providing the soft tape 33 between the outer surface of the periphery of the opening 29 of the cover main body 26 and the inner surface of the flange portion 31 of the ventilation member 27, the gap is filled with the soft tape 33, and vibration noise due to vibration is generated. Problems such as occurrence can be easily solved.

  The ventilation portion 32 of the ventilation member 27 is configured in a lattice shape having a horizontal beam 34 and a vertical beam 35, and the vertical beam 35 is discontinuously arranged in the vertical direction. A large number of openings can be formed to increase the entire opening area, and the strength as the ventilation member 27 can be ensured. Since the outer surface portion of the ventilation portion 32 of the ventilation member 27 is partially uneven, the recess 32d on the outer surface (back surface) side of the ventilation member 27 increases the size of the gap between the ventilation wall 27 and the wall W of the chamber. Can be effective in terms of wind flow. By forming the recess 32c on the inner surface (front surface) side of the ventilation member 27, contact (interference) with components in the machine room 18 can be prevented.

  Note that the present invention is not limited to the above-described embodiment, and illustration is omitted. However, for example, the following expansion and modification are possible. In other words, in the above embodiment, the ventilation portion 32 is configured for intake and the vent hole 28 is configured for exhaust, but conversely, a ventilation member having a ventilation portion on the exhaust side may be provided. Furthermore, the ventilation member (opening) can be provided independently on the upstream side and the downstream side of the cooling fan device in the cover. As a result, the overall opening area can be further increased.

  Moreover, in the said embodiment, although the cover main body 26 of the cover 25 was made into the form which has the bending parts 26a and 26b bent in the diagonal direction at both sides, it is good also as a bending part bent at right angles, and a bending part It is good also as a form which does not provide. Various changes can be made to the specific configuration of the ventilation member and the ventilation section. For example, the ventilation section may be configured in a lattice shape in which the vertical beams are continuous in the vertical direction with respect to the horizontal beam. As a method of attaching the member, it may be fixed by screwing or the like without providing the hook portion. It is good also as an overall flat shape, without providing an uneven | corrugated | grooved part in the outer surface part of a ventilation member. In addition, various changes can be made in the position, shape, number, etc., of the vent holes in the cover body, and the internal configuration of the refrigerator can be one cooler without departing from the gist. It can be implemented with appropriate modifications within the range.

  In the drawings, 1 is a refrigerator body, 18 is a machine room, 19 is a compressor, 20 is a cooling fan device, 25 is a cover, 26 is a cover body, 26a and 26b are bent portions, 27 is a ventilation member, 28 is a vent hole, Reference numeral 29 is an opening, 31 is a flange, 32 is a vent, 32c and 32d are recesses, 33 is a soft tape (sound absorbing material), 34 is a horizontal beam, and 35 is a vertical beam.

Claims (10)

A machine room provided in the refrigerator body;
A cover attached to cover the back of the machine room;
An opening formed in the cover;
A refrigerator comprising: a synthetic resin plate-like ventilation member attached to the cover so as to close the opening and having a ventilation portion. A plurality of ventilation holes formed in the cover;
A plurality of ventilation portions formed in the ventilation member,
The refrigerator according to claim 1, wherein a distance between adjacent ventilation portions is shorter than a distance between adjacent ventilation holes.   The side portion of the cover is provided with a bent portion disposed at a corner portion of the refrigerator main body, and the opening is formed to include a part of the bent portion. Item 3. The refrigerator according to item 1 or 2.   The said ventilation member has a flange part addressed to the circumference | surroundings of the opening part of the outer surface of the said cover, and it is engaged and fixed to this cover by the hook part which has the spring property provided in the said flange part. The refrigerator according to any one of 3.   The refrigerator according to claim 4, wherein a sound absorbing material for preventing vibration is provided between the outer surface of the cover and the inner surface of the flange portion of the ventilation member.   The refrigerator according to any one of claims 1 to 5, wherein a compressor is disposed in the machine room, and the opening of the cover is provided at a position separated from the compressor.   A cooling fan device is disposed in the machine room, and the opening having the ventilation member is provided on a side of the upstream side and the downstream side of the cooling fan device where the area of the cover is small. Item 7. The refrigerator according to any one of Items 1 to 6.   The cooling fan device is arrange | positioned in the said machine room, The said opening part provided with the said ventilation member is each provided independently in the upstream and downstream of the said cooling fan device, respectively. The refrigerator according to any one of the above.   The ventilation part of the ventilation member is formed in a lattice shape having a horizontal beam and a vertical beam, so that a large number of horizontally elongated slits are formed, and the vertical beam is discontinuous in the vertical direction. The refrigerator as described in any one of Claim 1 to 8 arrange | positioned automatically.   The refrigerator according to any one of claims 1 to 9, wherein an outer surface portion of the ventilation member is partially configured to be uneven.

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