JP6482317B2 - Cooling storage door device - Google Patents

Description

  The present invention relates to a door device for a cooling storage provided with a pair of left and right double-spread type heat insulating doors.

  Conventionally, a pair of left and right double-spread type heat insulating doors that open and close the opening provided in the storage body and the opening / closing side end of the heat insulating door (the end facing the heat insulating door on the other side) are mounted over almost the entire height. There is known a door device for a cooling storage provided with a center seal (for example, see Patent Document 1). The center seal described in Patent Document 1 has a seal main body and a sub lip (hereinafter referred to as “fin portion”) projecting from the seal main body to the open / close shaft side of the heat insulating door. Is in contact with the packing of the heat insulating door and separates the interior and the exterior.

JP2013-88025A

  According to the door device described in Patent Document 1 described above, since warm outside air containing moisture is supplied to the outside of the fin section, when the temperature of the fin section falls below the condensation temperature, the outside of the fin section There is a risk that the amount of condensed water (condensation amount) that condenses on the surface of the surface increases. If the amount of dew condensation is large, the dew condensation water may drop on the floor where the cooling storage is installed, which may be a problem.

  By the way, there is a case where cold air flows from the inside of the cooling storage to the fin portion. When the cold air flows toward the fin portion, the cold portion directly hits the fin portion, so that the temperature of the fin portion is easily lowered to the dew condensation temperature or less, and the amount of dew condensation may increase as described above.

  In this specification, the technique which can suppress the amount of dew condensation of the surface of the outer side of a fin part even if cold air | gas flows from the inner side toward the fin part which partitions the inside and the outside of a warehouse is disclosed.

  The door device of the cooling storage disclosed in the present specification has a pair of left and right double-spread type heat insulating doors that open and close an opening provided in the storage body of the cooling storage, and an opening and closing side end of the heat insulating door over a substantially entire height. A center seal that is in contact with a mating center seal and seals between the open / close side ends, and the seal is located on the inner side of the open / close side end. A fin portion extending from the main body to the opening / closing axis side of the heat insulating door, and extending from the inner side of the extended portion, touching the heat insulating door to partition the inside and the outside of the chamber, and covering the fin portion from the inner side And a shielding part that shields the fin part from the cold air flowing from the inner side toward the fin part.

  According to said door apparatus, a fin part is shielded from the cold which flows toward the fin part from the inner side by having a shielding part. For this reason, even if cold air flows from the inside of the cabinet toward the fin portion, the temperature of the fin portion is less likely to decrease than in the case where no shielding portion is provided. Thereby, even if cold air | gas flows from the inner side toward the fin part which partitions the inside and the outside of a store | warehouse | chamber, the amount of dew condensation of the surface outside the store | warehouse | chamber of a fin part can be suppressed.

  Further, the seal body may be configured to be deformable toward the mating center seal by an elastic material, and a magnet may be provided on the inside so as to attract the magnet of the mating center seal.

  According to the above door device, when the heat insulating door is closed, the magnet and the counterpart magnet are attracted to each other, so that the seal body is deformed toward the counterpart center seal, and the seal bodies come into contact with each other to open and close the end The part is sealed. On the other hand, when the heat-insulating door is opened, the suction force decreases, so that the seal body returns to its original shape by the elastic force.

  However, if the inside temperature is low, the condensed water adhering to the outside surface of the fin portion freezes and the seal body becomes difficult to deform, and the sealing and self-closing properties of the heat insulating door made by the deformation are impaired. There is a risk of being lost. According to the above door device, the amount of condensation on the fin portion can be suppressed by the presence of the shielding portion, and the temperature of the fin portion is unlikely to decrease, so that it is difficult to freeze even if condensation occurs. Thereby, it can also suppress that it becomes difficult for a seal main body to deform | transform by freezing of dew condensation water.

  Further, the center seal has a support portion extending from the seal body to the inside of the cabinet, the shielding portion extends from the distal end portion of the support portion to the opening / closing shaft side, and the distal end on the opening / closing shaft side is You may space apart from a fin part and the said heat insulation door inside the store | warehouse | chamber.

  Assuming that the tip of the shield is in close contact with the fin or the heat insulating door, when the heat insulating door is opened, moist and warm outside air enters the space between the shield and the fin, and condensation forms on the shield. There is a risk of it. When the tip of the shielding part is separated from the fin part and the heat insulating door to the inside of the warehouse, the outside air that has entered the space between the shielding part and the fin part is released into the warehouse and is replaced with dry cold air in the warehouse. It is possible to suppress the occurrence of condensation.

  According to the door device of the cooling storage cabinet disclosed in the present specification, the amount of condensation on the outer surface of the fin portion can be suppressed even if cold air flows from the inner side toward the fin portion that partitions the inside and the outside of the chamber.

Front view of the refrigerator according to the embodiment Front view of refrigerator with no door device Perspective view showing the back of the insulated door Sectional view of the AA line shown in FIG. Enlarged view of the center seal shown in FIG.

<Embodiment>
An embodiment of the present invention will be described with reference to FIGS.

(1) Overall Configuration of Cooling Storage First, the overall configuration of the cooling storage according to the present embodiment will be described with reference to FIGS. 1 and 2. Here, a center pillar-less four-door refrigerator 1 will be described as an example of a cooling storage.

  As shown in FIG. 1, the refrigerator 1 is provided on a storage body 10, two sets of door devices 11 provided above and below the front surface of the storage body 10 (the front surface in FIG. 1), and the storage body 10. The machine room 12 is provided, and leg bodies 13 provided at the four corners of the bottom surface of the storage body 10 are provided.

  The storage body 10 will be described with reference to FIG. The storage body 10 is constituted by a heat insulating box that opens to the front side (front side of the paper), and two openings are formed vertically by columnar members 21. Each storage chamber 14 is not provided with a columnar member (so-called center pillar) extending in the vertical direction at the center in the horizontal direction.

  The machine room 12 accommodates a cooling device (not shown) that constitutes a cooling cycle. The cooling device includes an evaporator, a circulation fan, and the like. When the cooling device is operated, air is cooled by the evaporator, and the cooled air (cold air) is stored by being circulated and supplied into the storage chamber 14 by the circulation fan. The inside of the chamber 14 is cooled.

(2) Door device Next, the door device 11 will be described. As shown in FIG. 1, each door device 11 has a pair of left and right double-split type heat insulating doors 15A and 15B, and a center seal 40 that is mounted over the entire opening and closing side end of the heat insulating doors 15A and 15B, which will be described later. And.

(2-1) Thermal insulation doors The pair of thermal insulation doors 15A and 15B are formed symmetrically. The left heat insulating door 15A is pivotally supported by the storage main body 10 so that the left and right end portions thereof can be opened and closed by a hinge 16A. Similarly, the right heat insulating door 15B is pivotally supported by the storage body 10 so that the upper and lower sides of the right end can be opened and closed by the hinge 16B. A handle 17 for opening and closing operation is provided at a position adjacent to each other on the front face of each heat insulating door 15.

  In the following description, the side where the hinge 16 is provided on both sides in the left-right direction in each heat insulating door 15 is referred to as the opening / closing axis side. The end of the heat insulating door 15 in the left-right direction where the hinge 16 is not provided, in other words, the end facing the heat insulating door 15 on the other side is referred to as the open / close side end. For example, in the case of the right heat insulating door 15B, the right side is the opening / closing axis side, and the left end is the opening / closing side end.

  The heat insulating door 15 includes a metal exterior plate 18 (see FIG. 1) such as a stainless steel plate, a synthetic resin interior plate 19 (see FIG. 3), and a packing 20 (see FIG. 3) formed in a square shape (rectangular frame shape). 3) and a holding member 24 (see FIG. 4). As shown in FIG. 4, the heat insulation door 15 is comprised by the exterior board 18 and the interior board 19 at box shape, and the heat insulation material which is not shown in figure which consists of foaming resin, such as hard polyurethane, is foam-filled by the hollow part inside. .

  The packing 20 is demonstrated with reference to FIG. A packing mounting groove 15C (see FIG. 4) is formed in a rectangular frame shape along the outer periphery of the inner plate 19 at the outer edge of the inner plate 19, and the packing 20 is mounted in the packing mounting groove 15C. The packing 20 is formed of an elastic material such as a soft resin.

  The packing 20 is in close contact with the opening edge of the front surface of the storage body 10 when the door is closed, and seals between the heat insulating door 15 and the storage body 10. However, the portion of the packing 20 extending along the side on the opening / closing side end portion side does not seal between the heat insulating door 15 and the storage body 10, but the fin portion 42 ( 4) is slidably touching.

  With reference to FIG. 4, the cross-sectional shape of the packing 20 is demonstrated. The packing 20 includes a packing body 20A and mounting legs 20B that are mounted in the packing mounting groove 15C. A first magnet chamber 20C is formed in the packing body 20A at a position inside the cabinet. A flat prismatic first magnet 25 is inserted into the first magnet chamber 20C.

  Next, the holding member 24 will be described with reference to FIG. The holding member 24 is a member that holds the center seal 40. The holding member 24 forms a space between the base 24 </ b> A and the base 24 </ b> A that is attached to the end face of the opening / closing side end portion of the heat insulating door 15 over the entire height on the end face facing the counterpart heat insulating door 15. And a slide lid 24B held by the base 24A.

The base 24A is fixed to the end face described above with screws 51. A second mounting groove 26, a heater holding groove 27, a latching portion 28, and a latching portion 29 are formed in the base 24A.
The second mounting groove 26 is a groove into which a latching portion 41F (see FIG. 5) formed in the center seal 40 is fitted. The second mounting groove 26 is located on the inner side of the opening / closing side end of the heat insulating door 15.

The heater holding groove 27 is provided outside the second mounting groove 26. A heater 30 for preventing condensation is inserted into the heater holding groove 27. As shown in FIG. 3, the lead wire 52 connected to the heater 30 passes through the inside of the heat insulating door 15 from the heater 30 and extends out of a hole for attaching the hinge 16.
The latching portions 28 and 29 are projecting protrusions that fit into the latching grooves 32 and 33 formed in the slide lid 24B and hold the slide lid 24B.

  A first attachment groove 31, a latching groove 32, and a latching groove 33 are formed in the slide lid 24B. The first mounting groove 31 is a groove into which a latching portion 41 </ b> C (see FIG. 5) formed in the center seal 40 fits. The latch groove 32 is a groove into which the latch portion 28 formed in the base 24A is fitted, and the latch groove 33 is a groove into which the latch portion 29 formed in the base 24A is fitted.

  The slide lid 24B is slid and inserted into the base 24A from the height direction (perpendicular to the paper surface in FIG. 4) so that the latching portions 28 and 29 of the base 24A fit into the latching grooves 32 and 33, respectively, and held by the base 24A. Yes.

(2-2) Center Seal Next, the center seal 40 will be described with reference to FIGS. 4 and 5. Here, the center seal 40 attached to the heat insulating door 15B will be described as an example. As shown in FIG. 5, the center seal 40 includes a seal body 41, a fin portion 42, a support portion 43, a first lip portion 44, and a second lip portion 45. The second lip portion 45 is an example of a “shielding portion”.

  The seal body 41 is in contact with the center seal 40 mounted on the mating heat insulating door 15 and seals between the opening and closing side end portions of the two heat insulating doors 15. The seal body 41 is made of a soft resin such as natural rubber or synthetic rubber, and has a structure easily deformed toward the center seal 40 on the other end. FIG. 4 shows a state where each seal body 41 is deformed toward the opposite center seal 40. The soft resin is an example of an “elastic material”.

  As shown in FIG. 5, the seal body 41 includes an abutting portion 41A, a first extending portion 41B, and a second extending portion 41E. The abutting portion 41A is a portion that abuts on the center seal 40 attached to the heat insulating door 15 on the other side. As shown in FIG. 4, the abutting portion 41 </ b> A is located on the inner side of the opening / closing side end of the heat insulating door 15 </ b> B and on the side of the heat insulating door 15 on the other side of the opening / closing side end.

  As shown in FIG. 5, the contact portion 41A is formed in a rectangular tube shape, and the inner space forms a second magnet chamber 41D. A flat prismatic second magnet 46 is inserted into the second magnet chamber 41D so as to attract the second magnet 46 on the other side. The form of attracting each other is, for example, a form of N pole if the second magnet 46 on the other side is the S pole. The second magnet 46 is an example of a “magnet”.

  The first extending portion 41B is inclined toward the heat insulating door 15B from the end on the outer side of the contact portion 41A toward the outside of the chamber. The extended portion of the first extending portion 41B is bent toward the heat insulating door 15B, and a latching portion 41C is integrally formed at the tip portion thereof.

  The second extending portion 41E extends from the abutment portion 41A to the opening / closing axis side of the heat insulating door 15B on the inner side of the opening / closing side end portion of the heat insulating door 15B, and the extended tip is in front of the packing 20 as shown in FIG. And bent to the outside direction and fixed to the holding member 24. Specifically, as shown in FIG. 5, the second extending portion 41 </ b> E has a linear portion 47 extending from the end on the inner side of the contact portion 41 </ b> A toward the opening / closing axis substantially parallel to the heat insulating door 15, and a linear portion. And a curved portion 48 that is curved so as to protrude from the front end portion of 47 to the opening / closing axis side. A latching portion 41F similar to the latching portion 41C is integrally formed at the distal end portion of the curved portion 48.

  The fin part 42 partitions the inside and the outside of the box. As shown in FIG. 4, the fin portion 42 extends from the seal body 41 toward the opening / closing axis side of the heat insulating door 15 </ b> B from the opening / closing side end portion of the heat insulating door 15 </ b> B, and the surface on the outer side of the extended end portion is the packing 20. It is in contact with (a part of the heat insulating door 15). Specifically, as shown in FIG. 5, the fin portion 42 extends from the distal end portion of the linear portion 47 of the second extension portion 41 </ b> E to the opening / closing axis side substantially parallel to the heat insulating door 15. In other words, it can be said that the fin portion 42 is obtained by extending the linear portion 47 to the opening / closing axis side. However, the thickness of the fin portion 42 is smaller than the thickness of the straight portion 47.

  As shown in FIG. 4, the fin portion 42 is in contact with the packing 20 so that the outer surface of the tip portion is slidable. The width of the fin portion 42 that is in contact with the packing 20 is such that the tip of the fin portion 42 is still in contact with the packing 20 even if the heat insulating door 15 is closed and the seal body 41 is deformed toward the mating center seal 40. It is the dimension which can maintain the state which exists.

  The support portion 43 is a member that supports the first lip portion 44 and the second lip portion 45. The support part 43 extends inward from the tip of the straight part 47 of the second extension part 41E. A first lip portion 44 and a second lip portion 45 are integrally formed at the distal end portion of the support portion 43 over the entire height.

  The first lip portion 44 is for shielding the abutting portion 41A from the cold air flowing from the inner side toward the abutting portion 41A. As shown in FIG. 4, the first lip portion 44 is inclined outward from the tip of the support portion 43 toward the heat insulating door 15 </ b> A on the other side. The inclination angle of the first lip portion 44 is, for example, 15 degrees. In the present embodiment, the tip portions of the first lip portions 44 do not overlap each other when the door is closed, but the tip portions of the first lip portions 44 may overlap each other when the door is closed.

  The 2nd lip part 45 is for shielding the fin part 42 from the cold which flows toward the fin part 42 from the inside of a store | warehouse | chamber. As shown in FIG. 4, the second lip portion 45 is inclined outward from the tip of the support portion 43 toward the opening / closing axis side. The inclination angle of the second lip 45 is, for example, 15 degrees. As shown in FIG. 4, the tip of the second lip portion 45 is not in close contact with the fin portion 42 and the packing 20, and is separated from the fin portion 42 and the packing 20 to the inside of the box.

  In the present embodiment, the second lip portion 45 covers the entire fin portion 42 as viewed from the inside of the cabinet. For this reason, when viewed from the inside of the cabinet, the fin portion 42 is covered with the second lip portion 45 and cannot be visually recognized as a whole.

  As shown in FIG. 4, the center seal 40 has a height so that the latching portion 41C fits into the first mounting groove 31 of the slide lid 24B and the latching portion 41F fits into the second mounting groove 26 of the base 24A. It is slid into the holding member 24 from the direction and held by the holding member 24. When the center seal 40 is held by the holding member 24, the first space 55 is formed by the seal body 41 and the holding member 24, and the seal body 41 and the fin portion 42 are disposed outside the fin portion 42. The second space 56 is formed by the packing 20 (a part of the heat insulating door 15) and the exterior plate 18 (a part of the heat insulating door 15).

(3) Action of Center Seal As shown in FIG. 4, when the left and right heat insulating doors 15 are closed, the two second magnets 46 attract each other, whereby the seal body 41 is deformed toward the center seal 40 on the other side. The abutting portions 41 </ b> A are in contact with each other to seal between the open / close end portions of the two heat insulating doors 15. At this time, the fin portion 42 moves toward the mating center seal 40 while the outer surface of the fin portion 42 is in contact with the packing 20.

  On the other hand, when the heat insulating door 15 is opened, the force with which the two second magnets 46 attract each other decreases, so that the seal body 41 returns to its original shape by the elastic force. At this time, the fin part 42 moves to the opening / closing axis side while the outer surface is in contact with the packing 20.

(4) Effects of the Embodiment According to the door device 11 described above, the fin portion 42 is shielded from the cold air flowing from the inside of the cabinet toward the fin portion 42 due to the second lip portion 45. For this reason, even if cold air flows from the inside of the cabinet toward the fin portion 42, it is difficult for the temperature of the fin portion 42 to fall compared to the case where the second lip portion 45 is not provided. Thereby, even if cold air | gas flows from the inner side toward the fin part 42 which divides the inside of a store | warehouse | chamber from the outside of a store | warehouse | chamber, the amount of dew condensation on the surface outside the store | warehouse | chamber of the fin part 42 can be suppressed.

  Further, according to the door device 11, when the heat insulating door 15 is closed, the seal main body 41 is deformed toward the counterpart center seal 40, and when the heat insulating door 15 is closed, the seal main body 41 returns to its original shape. However, if the internal temperature is low, the condensed water adhering to the outer surface of the fin portion 42 may freeze, and the seal body 41 may not be easily deformed. If the seal body 41 is difficult to be deformed, the sealing property and the self-closing property of the heat insulating door 15 formed by the deformation may be impaired. According to the door device 11, the amount of condensation can be suppressed by the presence of the second lip portion 45, and the temperature of the fin portion 42 is difficult to decrease, so that it is difficult to freeze even if condensation occurs. Thereby, it can also be suppressed that it becomes difficult for the seal body 41 to be deformed due to freezing of the dew condensation water.

  Further, according to the door device 11, the tip of the second lip portion 45 on the opening / closing axis side is separated from the fin portion 42 and the packing 20 toward the inside of the cabinet. Assuming that the tip of the second lip portion 45 is in close contact with the fin portion 42 or the packing 20, when the heat insulating door 15 is opened, the space surrounded by the second lip portion 45 and the fin portion 42 is moist and warm. Outside air may enter and condensation may occur on the outer surface of the second lip 45. In contrast, when the tip of the second lip portion 45 is separated from the fin portion 42 and the packing 20 to the inside of the cabinet, the outside air that has entered the space between the second lip portion 45 and the fin portion 42 is released into the cabinet. Since it is replaced with dry cold air in the storage, it is possible to suppress the occurrence of condensation.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  (1) In the above embodiment, the case where the second lip portion 45 covers the entire fin portion 42 has been described as an example. On the other hand, if the amount of condensation is allowed, the second lip portion 45 may not cover a part of the fin portion 42.

  (2) In the above embodiment, the case where the fin portion 42 extends from the tip end portion of the linear portion 47 of the second extending portion 41E toward the opening / closing axis has been described as an example. However, the fin portion 42 does not necessarily extend from the tip portion of the linear portion 47, and for example, it may branch from the middle of the curved portion 48 and extend toward the opening / closing axis.

  (3) The shape of the seal body 41 described in the above embodiment is an example. The shape of the seal body 41 may be any shape as long as it can contact the opposite center seal 40 and seal between the opening and closing side ends.

  (4) In the above embodiment, the case where the tip of the second lip portion 45 on the opening / closing axis side is separated from the fin portion 42 and the packing 20 toward the inside of the warehouse has been described as an example. On the other hand, the tip of the second lip portion 45 may be in close contact with the fin portion 42 or the packing 20.

  (5) In the above embodiment, the case where the first lip portion 44 and the second lip portion 45 share one support portion 43 has been described as an example. However, the second lip portion 45 may be supported in any form as long as the fin portion 42 can be shielded from the cold air flowing from the inner side toward the fin portion 42. For example, the first lip portion 44 and the second lip portion 45 may be supported by separate support portions.

  (6) In the above embodiment, the case where the outer surface of the fin portion 42 contacts the packing 20 has been described as an example. However, the packing 20 may be omitted. In that case, the outer surface of the fin portion 42 is in direct contact with the interior plate 19. However, in that case, it is desirable that the surface of the interior plate 19 with which the fin portion 42 contacts is disposed at the position of the inner surface of the packing 20.

  (7) In the above-described embodiment, the four-door refrigerator 1 in which two pairs of left and right heat insulating doors 15 are provided as upper and lower pairs as the cooling storage has been described as an example. On the other hand, the cooling storage may be, for example, a two-door refrigerator provided with a pair of left and right heat insulating doors 15. Moreover, although the refrigerator was demonstrated to the example as a cooling storage in the said embodiment, a freezer may be sufficient as a cooling storage.

DESCRIPTION OF SYMBOLS 1 ... Refrigerator, 10 ... Storage body, 11 ... Door device, 15 (15A, 15B) ... Thermal insulation door, 20 ... Packing, 24 ... Holding member, 40 ... Center Seal, 41 ... Seal body, 42 ... Fin part, 43 ... Support part, 44 ... First lip part, 45 ... Second lip part, 46 ... Second magnet

Claims (2)

A pair of left and right double-split heat insulating doors that open and close the opening provided in the storage body of the cooling storage;
A center seal that is attached to the open / close side end of the heat insulating door over substantially the entire height;
With
The center seal is
A seal body that abuts against a center seal on the other side and seals between the opening and closing side ends;
A fin that extends from the seal main body to the opening / closing axis side of the heat insulating door from the opening / closing side end to the opening / closing axis side of the heat insulating door, and that the outside surface of the extended end is in contact with the heat insulating door and separates the inside and the outside of the box. And
Covering the fin portion from the inside of the cabinet, a shielding portion that shields the fin portion from the cold air flowing from the inside of the cabinet toward the fin portion,
A support portion extending from the seal body to the inside of the cabinet,
I have a,
The said shielding part is extended to the said opening-and-closing axis | shaft side from the front-end | tip part of the said support part, and the front-end | tip on the said opening / closing axis | shaft side is spaced apart from the said fin part and the said heat insulation door inside the warehouse, The door apparatus of a cooling storage.   The said seal main body is comprised so that it can deform | transform toward the other party center seal with an elastic material, and the magnet is provided in the form which attracts | sucks with the magnet of the other party center seal inside. Cooling storage door device.

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