JP2019113201A - refrigerator - Google Patents

Abstract

To provide a refrigerator that comprises a chilled chamber that restrains deterioration of sliding performance and deterioration of sealing performance associated with deformation of the chilled chamber caused by external force even if having a simple structure.SOLUTION: A refrigerator comprises a storage chamber, and a chilled chamber installed in the storage chamber. The chilled chamber comprises an outer member comprising an opening on a front side, a lid 16 for closing the opening of the outer member, and packing 16p located between the outer member and the lid 16 when the lid 16 closes the opening. The packing 16p comprises a first contact part 16pc in contact with a front surface of the opening, and a second contact part 16pa in contact with an inside upper surface 14u of the outer member.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a refrigerator.

  Various refrigerators have been proposed that include a chilled chamber that suppresses the drying of food by having a closed structure in which dry cold does not enter. In this type of refrigerator, a sealing member is provided in a box (cover) for storing a door (case) for opening and closing the chilled chamber, and the door (case) is sealed by sealing the door (case). In particular, in Patent Document 1 below, an indirect cooling chamber is provided which has high hermeticity and does not easily cause food to dry without having a complicated structure, and does not blow cold air directly to the indirect cooling chamber, causing condensation in the indirect cooling chamber. It is disclosed to prevent.

Unexamined-Japanese-Patent No. 2014-59081

  However, the refrigerator described in Patent Document 1 has a structure in which the packing is brought into contact with a surface (front) perpendicular to the opening and closing direction of the container. Even if there is no packing, the sealing performance is reduced even if there is a packing.

  The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a refrigerator provided with a highly airtight container in a storage room.

  The present invention relates to an outer shell member having an opening on the front side in a storage chamber, a lid for closing the opening of the outer shell member, and a packing positioned between the outer shell member and the lid in a state where the lid is closing the opening. And the packing has a first contact portion contacting the front surface of the outer shell member and a second contact portion contacting the inner upper surface of the outer shell member.

  According to the present invention, the sealing property can be secured even when the facing surface between the packing surface on the lid side and the outer member side does not form a uniform gap. Thus, it is possible to provide a refrigerator having a highly airtight container in the storage room.

It is the perspective view which looked at the refrigerator of the embodiment to which the present invention is applied from the front. It is an AA line cross section conceptual diagram of FIG. It is the BB sectional drawing of FIG. It is the perspective view which looked the chilled chamber from diagonally front upper direction. It is a C direction arrow conceptual diagram of a chilled chamber shown in FIG. The packing attached to a chilled chamber lid is shown, (a) is a front view, (b) is a top view, (c) is an EE sectional view taken on the line. (A) is the DD sectional view taken on the line which shows the state where a chilled chamber lid and a container were stored in the shell member. (B) is F detail drawing. (A) is the DD sectional view taken on the line which shows the state where a chilled chamber lid and a container were stored in the shell member. (B) is G detail drawing, and is a figure which shows an example of Hall IC and a holding part installation place.

  Hereinafter, embodiments of the present invention will be described with reference to the attached drawings.

  FIG. 1 is a front perspective view of a refrigerator according to an embodiment of the present invention, and FIG. 2 is a schematic cross-sectional view taken along the line A-A of FIG.

  As shown in FIG. 1 and FIG. 2, the refrigerator 1 of this embodiment is a refrigerator compartment 2 which is a storage room of a refrigerator temperature zone around 6 ° C. at the top, and a refrigerator room of a refrigerator temperature zone around 6 ° C. Vegetable compartments 5 are respectively disposed, and a refrigeration temperature zone of 0.degree. C. or less (e.g., about -20.degree. C. As shown in FIG. 2, the ice making room 3a, the quick freezing room 3b and the freezing room 4 which are freezing rooms of a temperature zone of 18 ° C. are respectively divided and arranged by partition walls k1, k2 and k3.

  The refrigerator 1 is provided with doors 6 to 10 of a heat insulating construction for closing the front opening of the refrigerator 2, the ice making room 3a, the quick freezing room 3b, the freezing room 4 and the vegetable room 5 on the front, except the doors 6 to 10 The outer peripheral case portion is configured to have a urethane foam heat insulating material and a vacuum heat insulating material (not shown) for heat insulation with the outside air between the steel sheet outer case 11 and the resin inner case.

  The refrigerator compartment door 6 (6a, 6b) for closing the front opening of the refrigerator compartment 2 is composed of a double-open double door, while the icemaker door 7 for closing the front opening of the ice making room 3a The rapid freezer compartment door 8 for closing the front opening of the freezer compartment 3b, the freezer compartment door 9 for closing the front aperture of the freezer 4, and the vegetable compartment door 10 for closing the front aperture of the vegetable compartment 5 It consists of a drawer-type door from which the container in the room is pulled out together.

  In the refrigerator 1, a refrigeration cycle for performing the above refrigeration and refrigeration is constituted by connecting a compressor, a condenser, a capillary tube, an evaporator serving as a cooling source by taking heat of vaporization of the refrigerant, and a compressor again in this order. ing.

  The evaporator serving as the cooling source is installed at the rear of the freezer compartments 3 and 4, and the cool air of the evaporator is sent to the ice making room 3a, the quick freezer compartment 3b and the freezer compartment 4 by the blower fan It is sent to each storage room of the refrigerator compartment 2 and the vegetable compartment 5 via the openable and closable damper device which becomes closed. Cold air has a circulation structure of cold air that is circulated after cooling each storage room, and the cold room 2, the ice making room 3a, the quick freezing room 3b, the freezing room 4 and the vegetable room 5 have temperature sensors. It is maintained at a predetermined temperature by temperature control by the control device used.

  As shown in FIG. 3, which is a cross-sectional view taken along the line B-B in FIG. 1, the refrigerator compartment door 6a is rotatably supported centering on the support shaft S1, and is a pocket-like translucent resin molding for containing drinks and the like. A door storage 6a1 is provided so as to protrude to the inside, and a rotary partition 6a2 configured to be swingable by an urging force and a guide of a torsion coil spring is provided on the rear surface of the door storage 6a1.

  When the cold storage doors 6a and 6b are closed (see FIG. 1), the rotary partition 6a2 prevents cold air from leaking between the cold storage doors 6a and 6b at a position along the left cold storage door 6a. When the refrigerator compartment door 6a is opened, the refrigerator compartment door 6a is configured to rotate in the thickness direction (indicated by a two-dot chain line) of the refrigerator compartment door 6a so as not to disturb the user.

  In addition, the right refrigerator compartment door 6b is rotatably supported centering on the spindle S2, and a pocket-like translucent resin-molded door storage 6b1 for containing a drink etc. is provided so as to protrude on the inside side .

  The chilled chamber shown in FIG. 3 is maintained at a chilled temperature zone (e.g., a temperature range of about 0 to 2 <0> C).

  As shown in FIG. 3, in a state where the refrigerator compartment door 6b is closed, a predetermined space is formed between the door storage 6b1 of the refrigerator compartment door 6b and the chilled compartment lid 16 of the chilled compartment 13 so that they do not contact each other. It is configured. And the chilled chamber 13 is comprised by the box shape of the width | variety same as or narrower than the width of the refrigerator compartment door 6b which is one door of a double-opening door.

  FIG. 4 is a perspective view of the configuration of the chilled chamber 13 as viewed obliquely from above.

  The chilled chamber 13 has an opening on the upper surface and the front surface, and is a flat rectangular member (box) 14 which is flat and long and is a long rectangular member and a lid member which opens and closes in and out for storage inside and out. It is formed by a certain chilled chamber lid 16 (door). A container 17 housed in the shell member (box) 14 is installed in the chilled chamber lid.

  The outer shell member 14 is resin-molded using ABS (resin containing acrylonitrile, butadiene, styrene), AS (resin containing acrylonitrile, styrene), etc., and left and right side walls 14a, 14b, bottom wall 14c, rear wall 14d (figure 3) and a front wall 14e, and the top and front surfaces are open.

  FIG. 5 is a conceptual view of the chilled chamber 13 shown in FIG. As shown in FIG. 5, the chilled chamber lid 16 has a substantially rectangular shape in a front view, and has an elongated shape in the left-right direction. In addition, the chilled chamber lid 16 is provided with an open / close handle 26.

  FIG. 6 shows the packing attached to the chilled chamber lid, (a) is a front view, (b) is a plan view, and (c) is a cross-sectional view taken along the line E-E. As shown in FIG. 6, a packing 16 p of an elastic material is disposed on the inner peripheral edge of the chilled chamber lid 16, which is in contact with the outer shell member 14 when it is closed. And the chilled chamber lid 16 is sealed. As shown in FIG. 6C, the packing is composed of a first contact portion 16pc, a second contact portion 16pa, and a connecting portion 16pb.

FIG. 7A is a cross-sectional view taken along the line D-D showing a state in which the chilled chamber lid 16 and the container 17 are stored in the outer shell member 14, and FIG. As shown in FIG. 7 (b), the packing 16p has a first contact portion 16pc in contact with the front surface of the opening 14e and a second contact portion 16pa in contact with the inner upper surface 14u of the outer shell member (box) 14. . In the present embodiment, even when the adhesion between the first contact portion 16pc and the outer shell member 14 is insufficient, the sealing performance can be enhanced by the second contact portion 16pa touching the outer shell member 14. Further, a region between the first contact portion 16pc, the second contact portion 16pa, and the connection portion 16pb is a void 16pd. Therefore, by reducing the pressure in the chilled chamber, the adhesion between the chilled chamber lid 16 and the chilled chamber 13 is enhanced, and the sealability of the chilled chamber is further improved.
In the present embodiment, a structure in which the inside of the chilled chamber 13 is depressurized is adopted as an example in order to suppress a decrease in freshness of food by reducing oxygen around the food to suppress oxidation. A decompression chamber (hereinafter referred to as chilled chamber 13) for changing the state of gas shown in FIG. 3 is a gas control chamber in which internal air is sucked by vacuum pump 12 and reduced to 0.8 atmosphere (80 kPa) or the like. There is a special air atmosphere to prevent food oxidation and maintain the freshness of vegetables.
In the case where the packing 16p is closed with a slight inclination of the chilled chamber cover 16 with respect to the outer shell member 14 and when the outer shell member 14 and the chilled chamber cover 16 are warped, the second contact portion enters the inner surface 14u of the outer shell member Thus, the space between the shell member 14 and the chilled chamber lid 16 can be reliably sealed. The packing 16 p as a sealing member can be provided on the outer member side 14 without being provided on the chilled chamber lid 16.

  As shown in FIG. 4, the chilled chamber lid 16 is molded with a resin such as ABS whose outer peripheral portion 16 t (see FIG. 5) is opaque, so that the central portion 16 c can visually recognize the food stored in the chilled chamber 13. It is molded of transparent resin such as AS.

  Further, in the present embodiment, as shown in FIG. 7, the second contact portion 16pa of the packing 16p contacts the side surface of the outer shell member 14 parallel to the opening and closing direction (moving direction) of the container. The sealability between the opening of the housing and the opening can be made uniform. As a result, the packing 16p can be reliably brought into contact with the outer shell member 14 to ensure good sealing performance. In addition, since the length when the second contact portion of the packing 16p is inserted into the container can be secured sufficiently in the opening and closing direction of the container, the opposing surfaces of the packing surface on the container side and the outer shell member 14 are uniform. Even when it does not become a gap, sealing can be secured.

  In addition, the packing 16p in the present embodiment includes a first contact portion 16pc, a second contact portion 16pa, and a connecting portion 16pb that connects them, and a void 16pd is formed by these. Therefore, when the chilled chamber is depressurized, the air gap is also depressurized, and thus the first contact portion 16 pc receives a force on the chilled chamber side, so the degree of sealing is enhanced. In addition, even when the contact between the first contact portion 16pc and the convex rib 14t of the outer shell member 14 is insufficient when the chilled chamber lid 16 is closed, the sealing performance can be ensured.

  Further, as shown in FIG. 6C, the second contact portion 16pa of the packing 16p is curved, and is inclined with respect to the upper surface 14u inside the outer shell member 14. Therefore, when the container 17 is housed in the outer shell member 14 together with the chilled chamber lid 16, the packing 16p contacts the inner upper surface 14u of the outer shell member 14 through the line 16pa1. Operability improves. Further, the packing 16p of the present embodiment is flexible because it has the air gap 16pd, and since the second contact portion 16pa has a shape that extends forward from the rear, the chilled chamber lid 16 is deformed. Also, the packing 16p can follow and ensure the tightness of the chilled chamber.

  In addition, the first contact portion 16pc of the packing 16p in the present embodiment has a fin shape with respect to the thick portion, that is, a curved shape (shape of the left half of the U character) in which the inner surface and the outer surface are recessed on the rear side. An attached structure is also possible (not shown). Thus, when the inner surface of the first contact portion 16pc is U-shaped, when the chilled chamber lid 16 is pushed in, the upper end (opening end) portion of the first contact portion comes in contact with the thick portion facing first. Deformation occurs such that the lower end (bottom) side gradually contacts. Then, when the chilled chamber lid 16 is pulled out, a restoring force that causes the first contact portion 16pc to return to the original state is exerted, and the first contact portion 16pc is easily separated from the facing thick portion. As a result, when pressing again, the first contact portion 16 pc functions effectively, a gap does not easily occur in the chilled chamber lid 16, and the chilled chamber 13 can be reliably sealed.

  Here, as described above, due to the pressing of the chilled chamber lid 16 and the repulsive force of the packing 16p, the chilled chamber lid 16 on the central side on the left and right sides is bent forward. In addition, the resin-made chilled chamber lid 16 may have a slight forward camber even during molding. In this manner, the chilled chamber lid 16 on the center side in the left and right direction is largely displaced as compared to the left and right sides at the time of locking. In the present embodiment, not only the left and right center sides, but also the left and right sides are configured such that the second contact portions 16pa contact the side surfaces of the outer shell member 14 parallel to the opening and closing direction (moving direction) of the container. ing. As a result, after the first contact portion comes in contact with the convex rib 14t of the outer shell member 14, a large area which can be deformed is secured, and sealing performance is improved.

  The packing 16p of this embodiment extends from the front end of the thick portion to the other (forward) in addition to the first contact portion 16pc described above, which extends from the rear end of the thick portion toward one (rear) to form a large fin. A small first contact portion 16pe which becomes a fin portion is provided. Unlike the first contact portion 16pc, the small first contact portion 16pe is formed short from the upper portion on the front side of the thick portion. The small first contact portion 16pe is in close contact with the opposing thick portion at the time of pressure reduction, and a pressure is generated on the contact surface of the small first contact portion 16pe and the chilled chamber lid 16. As a result, it becomes difficult to form a gap on the surface of the chilled chamber lid 16 to which the packing 16p is attached, pressure reduction is reliably performed, and the sealing performance is further improved.

  Here, the convex rib 14t of the outer shell member 14 abuts on the upper portion of the first contact portion 16pc at the time of pressure reduction as shown in FIG. For this reason, a rotational moment acts on the packing 16 p clockwise in FIG. 7, and the bottom on the front side of the thick portion receives a force in the direction away from the chilled chamber lid 16. Taking this point into consideration, the small first contact portion 16pe is formed on the upper front side of the thick portion, and maintains the sealed state even if the packing 16p receives a rotational moment.

  Moreover, the groove part 16pf dented back is formed in the thick part facing the small 1st contact part 16pe. For this reason, even if the small first contact portion 16pe is deformed and brought into contact with the thick portion at the time of pressure reduction, this portion is prevented from being excessively protruded, which contributes to the improvement of the sealing performance.

  As shown in FIG. 5, the central portion 16c2 of the chilled chamber lid 16 is recessed inwardly so that the user's hand can enter and the space occupied by the handle operation portion 36 of the open / close handle 26 can be provided on the outer surface side. It is formed in shape.

Next, a method of detecting that the chilled chamber lid 16 is in close contact with the shell member 14 (when the chilled chamber lid 16 has reached a predetermined position) by using a door switch will be described with reference to FIG.
FIG. 8A is a cross-sectional view taken along the line D-D showing a state in which the chilled chamber lid 16 and the container 17 are stored in the outer shell member 14. (B) is G detail drawing, and is explanatory drawing which shows an example of the installation place of Hall IC95.

  The door switch of the present embodiment is composed of a magnet 96 provided on the back surface of the container 17 and a Hall IC 95 provided on the back surface of the outer shell member 14 for sensing the magnet 96.

  In the present embodiment, an example in which the Hall IC 95 is provided on the back of the shell member 14 will be described. However, the Hall IC 95 can be installed anywhere as long as the Hall IC 95 can sense the magnet 96 when the container 17 is stored in the shell member 14.

  When the container 17 is stored in the shell 14, the Hall IC 95 senses the magnet 96 and the vacuum pump 12 starts to control. That is, the drive timing of the vacuum pump 12 can be determined by such a door switch, and a lock mechanism etc. becomes unnecessary. In addition, if the pressure in the chilled chamber 13 is reduced, the chilled chamber lid 16 is drawn to the back side, the packing 16p is crushed, and the degree of sealing is improved. Furthermore, since a large force is not required when closing the chilled chamber lid 16, usability and operability are improved. In terms of appearance, since there is no locking mechanism, it looks light and smart. In addition, in terms of manufacturing, the number of parts is reduced, which makes it easy to assemble and reduce the cost.

Furthermore, in order to further improve the positioning accuracy, a holding portion may be provided at the rear of the chilled chamber 13. FIG. 8A is a cross-sectional view taken along the line D-D showing a state in which the chilled chamber lid 16 and the container 17 are stored in the outer shell member 14. (B) is G detail drawing, and is an explanatory view showing an example of an installation place of a attaching part.
As the structure of the holding portion, as shown in FIG. 8B, a second engaging portion (outer member 14 side engaging portion) 93 is provided on the inside of the back surface of the outer shell member 14 and 1 engaging portion (container 17 side engaging portion) 94 is provided.

  First, the second engaging portion 93 is provided on the back surface side of the outer shell member 14, and the second engaging portion 93 extends toward the front side inside the left and right side surfaces of the outer shell member 14. Is formed. Here, the second engaging portion 93 is a fixing portion for fixing the second engaging portion 93 to the outer shell member 14, and in the insertion and removal direction of the chilled chamber lid 16 from this fixing portion (longitudinal direction of the chilled chamber 13). And two extending spring parts 90. In the present embodiment, the spring portion 90 of each second engaging portion 93 is formed of a plate spring, but each spring portion 90 may be made of resin or metal. Specifically, when the chilled chamber lid 16 is put into the stored state, each spring portion 90 of the second engagement portion 93 is pushed and deformed by the first engagement portion 94, and the first engagement portion 94 It will hold down.

  Here, as viewed from the side, the spring portion 90 is inclined so that the facing interval gradually widens toward the front side of the chilled chamber lid 16 (chilled chamber 13). With the spring portion 90 having such an inclination, the force with which the spring portion 90 presses the first engagement portion 94 as the chilled chamber lid 16 is pushed to the back side (a force for returning to the original state by the elasticity of the spring portion 90) ) Is weak. On the other hand, when trying to pull out the chilled chamber lid 16 to the front side in a state in which the first engaging portion 94 is in contact with the spring portion 90, the chilled chamber lid 16 is directed backward (pull the chilled chamber lid 16 to the back side The force of the spring portion 90 can be exerted in the direction). For this reason, when moving the chilled chamber lid 16 (the chilled chamber lid 16 held by the holding portion 93) in the stored state, it is necessary to pull out the chilled chamber lid 16 beyond the force for pulling the chilled chamber lid 16 back. . As a result, once the chilled chamber lid 16 is put into the storage state, the chilled chamber lid 16 can be stabilized in the pushed-in state (stored state). As described above, if positioning can be performed with the chilled chamber lid 16 shaking and the gap between the chilled chamber lid 16 and the packing 16p being suppressed, the subsequent decompression of the chilled chamber 13 can be reliably performed. When the depressurization of the chilled chamber 13 is completed, the chilled chamber lid 16 is drawn to the back side, and the sealing performance is secured.

  Thus, according to the present embodiment, the first engaging portion 94 and the second engaging portion 93 engage with each other by pushing the chilled chamber lid 16 to the rear side in the horizontal direction, and the outer shell member 14 is On the other hand, the chilled chamber lid 16 can be held. In the back surface of the chilled chamber 13 of the present embodiment, deformation due to the load or decompression of the food does not easily occur. For this reason, by providing the engaging portion on the back surface of the inner surface of the outer shell member 14, it is possible to realize a stable lock mechanism while suppressing the decrease in the slidability and the sealability. In particular, by providing the engaging portion on the inner surface of the outer shell member 14, the influence of the deformation on the lock can be minimized. Further, by providing the engaging portions on the left and right sides of the outer shell member 14, the lock mechanism can be positioned as forward as possible, and the assembly accuracy is improved. In addition, even if it provides an engaging part only in one side, although it has a certain extent of effect, positioning is stabilized if it provides in both the left and right. Since the customer only needs to close the container 17 until the holding unit operates, it is easy for the customer to know how far the container 17 should be closed.

  The second engaging portion 93 may be integral with or separate from the shell member 14, and the first engaging portion 94 may be integral with or separate from the container 17. Moreover, although the example which provided the holding | maintenance part in the back surface side of the shell member 14 and the container 17 was demonstrated in this embodiment, installing in another place is also possible. Moreover, although the example which provided each engaging part one each was demonstrated in this embodiment, you may each provide two or more. Furthermore, in the present embodiment, the chilled chamber serving as the decompression chamber has been described. However, the present invention is not limited to this, and can be applied to a general chilled chamber.

1 refrigerator 2 cold storage room (storage room)
Reference Signs List 3 freezer room 6 refrigerator room door 7 ice making room 8 rapid freezer room 9 freezer room 10 vegetable room 11 outer case 12 vacuum pump 13 chilled room 14 outer case (housing part)
14e Opening 16 Chilled chamber lid (lid)
16p packing (seal member)
16u groove 17 container 26 opening and closing handle 90 spring portion 93 second engaging portion 94 first engaging portion 95 Hall IC
96 magnets

Claims (6)

  The storage chamber includes an outer shell member having an opening on the front side, a lid closing the opening of the outer shell member, and a packing positioned between the outer shell member and the lid when the lid covers the opening. In the refrigerator, the packing includes a first contact portion contacting the front surface of the outer shell member and a second contact portion contacting the inner upper surface of the outer shell member. The storage room is a chilled room,
The packing includes a connecting portion connecting the first contact portion and the second contact portion,
The refrigerator according to claim 1, wherein a gap is formed by the first contact portion, the second contact portion, and the connection portion in a state where the lid closes the opening.   The refrigerator according to claim 1, wherein the second contact portion is inclined with respect to the inner upper surface of the outer shell member.   The refrigerator according to any one of claims 1 to 3, wherein the second contact portion has a shape extending from the rear to the front. A container stored in the outer shell member is attached to the lid,
The refrigerator according to any one of claims 1 to 4, wherein a magnet is provided on a back surface of the container, and a Hall IC for sensing the magnet is provided on a back surface of the outer shell member. A storage room, and a chilled room installed in the storage room,
The chilled chamber has an outer surface formed with an opening on the front surface and longer in the left-right direction than the front-rear direction, a lid for opening and closing the opening, and a sealing member for sealing between the edge of the opening and the lid In the refrigerator equipped with
A first engagement portion is formed on the back surface of the shell member, and a second engagement portion is formed on the back surface of the container.
The refrigerator is characterized in that the first engaging portion and the second engaging portion are engaged with each other by holding the lid back side, and the lid is held with respect to the outer shell member.

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