JP2015040636A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently emit a freshness keeping component to a storage space.SOLUTION: The refrigerator comprises: a box-shaped storage chamber 13 having a side wall, a back wall, an upper wall and a bottom wall; a cover member 16 for opening/closing the storage chamber 13; pressure reduction means 12 for making pressure of the storage chamber 13 lower than atmospheric pressure; and freshness keeping means 17 arranged in the storage chamber 13 of the cover member 16 and keeping freshness of a storage material. A suction port of the pressure reduction means 12 is formed at any of a rear part of a center of the side wall, a rear part of a center of the upper wall, a rear part of a center of the bottom wall, and the back wall.

Description

  The present invention relates to a refrigerator.

  In the summary column of Japanese Patent Application Laid-Open No. 2012-47346 (Patent Document 1), the upper surface of the storage chamber has a convex portion that protrudes outward, and an antioxidant component release means is provided on the convex portion. Have been described.

  In claim 1 of Japanese Patent No. 4607200 (Patent Document 2), in a refrigerator in which an antioxidant component release cassette containing an antioxidant is disposed in a storage room formed in the refrigerator, the antioxidant is vitamin C. The antioxidant component release cassette has a container body containing the antioxidant and a lid joined to the container body, and the internal space formed by the container body and the lid is an antioxidant component. As a space surrounded by a film that does not pass through, the antioxidant component release cassette is placed inside a vacuum storage chamber that is sealed and depressurized to a pressure lower than atmospheric pressure, and the vacuum storage chamber is depressurized to reduce the pressure. It is described that the antioxidant component is released through a portion that is sandwiched by the film due to a pressure difference between the inside and outside of the antioxidant component releasing cassette and leads the antioxidant component inside to the outside.

JP 2012-47346 A Japanese Patent No. 4607200

  From patent documents 1 and 2, the release of the freshness-keeping component of the stored food in the reduced pressure space is known. However, in patent document 1, the convex-shaped part for arrange | positioning an antioxidant component discharge | release means is formed in the outline member which comprises a storage chamber. For this reason, when the pressure in the storage chamber is reduced, stress may concentrate on the convex portion.

  Moreover, in patent document 2, the antioxidant component discharge | release cassette is detachably attached to the back wall part of the food tray. Therefore, the antioxidant component release cassette may be detached from the food tray due to an impact when the food tray is taken in or out of the decompression storage chamber or when the stored item is taken in or out.

  In addition, as a method of efficiently releasing the freshness-keeping component of the stored food, a method of circulating air with a discharge device such as a fan can be considered.

  However, such a method requires a separate release device.

  In view of the above problems, an object of the present invention is to efficiently release a freshness-keeping component into a storage space.

  In order to achieve the above description, for example, the configuration described in the claims is adopted. As an example, a box-shaped storage chamber having a side wall, a back wall, an upper surface wall, and a bottom wall, a lid member that opens and closes the opening of the storage chamber, and a decompression unit that lowers the storage chamber to a pressure lower than atmospheric pressure. And a freshness retaining means for retaining the freshness of stored items arranged on the storage chamber side of the lid member, and the suction port of the decompression means is rear from the center of the side wall and from the center of the upper surface wall. It is formed in any one of a rear part, a rear part from the center of the bottom wall, and the back wall.

  According to the present invention, the freshness-keeping component can be efficiently released into the storage space.

It is the figure which looked at the refrigerator main body in embodiment of this invention from the front. FIG. 2 is a conceptual cross-sectional view taken along line AA in FIG. 1. It is the BB sectional view taken on the line of FIG. It is the perspective view which looked at the structure of the decompression chamber from diagonally forward upper direction. It is the perspective view which looked at the lid member and the food tray from the front upper part. It is a sectional side view explaining the outline of composition of a lid member. It is the perspective view seen from the front upper direction of a freshness holding means. It is a top sectional view explaining the composition outline outline of the present invention.

  Embodiments of the present invention will be described below with reference to the drawings. Drawing 1 is a figure which looked at the refrigerator main part in the embodiment of the present invention from the front. FIG. 2 is a cross-sectional conceptual diagram taken along line AA in FIG.

<Overall configuration of refrigerator body 1>
As shown in FIG. 1, the refrigerator main body 1 of this embodiment is a refrigerating room 2 which is a refrigerating room having a refrigeration temperature range of 0 ° C. or higher at the top, and a refrigerating room having a refrigerating temperature range of 0 ° C. or more at the bottom. Vegetable rooms 6 are arranged respectively. Between the refrigerator compartment 2 and the vegetable compartment 6, a freezing compartment having a freezing temperature zone of 0 ° C. or lower (for example, a temperature zone of about −20 ° C. to −18 ° C.) that is adiabatically separated from both the compartments. An ice making room 3, a quick freezing room 4 and a freezing room 5 are arranged. As shown in FIG. 2, each storage chamber is partitioned and arranged by an upper heat insulating partition wall 31a and a lower heat insulating partition wall 31b.

  Further, a decompression chamber 13 is provided in the refrigerator compartment 2. The decompression chamber 13 of this embodiment can selectively set the temperature in a chilled temperature zone of about 1 ° C. and an ice temperature temperature zone of about −1 ° C.

  The refrigerating room 2 includes, on the front side, refrigerating room doors 2a and 2b with double doors (so-called French type) divided into left and right. The ice making room 3, the quick freezing room 4, the freezing room 5, and the vegetable room 6 are provided with a drawer type ice making room door 3a, a quick freezing room door 4a, a freezing room door 5a, and a vegetable room door 6a, respectively.

  As shown in FIG. 2, the outside of the refrigerator body 1 and the inside of the refrigerator are separated by a heat insulating box 10 filled with a foam heat insulating material (foamed polyurethane) between the inner box 10a and the outer box 10b.

  The inside of the refrigerator is separated from the refrigerator compartment 2, the quick freezing compartment 4 and the ice making room 3 (see FIG. 1, the ice making room 3 is not shown in FIG. 2) by the upper heat insulating partition wall 31a. The freezer compartment 5 and the vegetable compartment 6 are separated by 31b.

  A plurality of door pockets 32 are provided inside the refrigerator compartment doors 2a and 2b (see FIGS. 1 and 2). The refrigerator compartment 2 is provided with a plurality of shelves 37. The refrigerator compartment 2 is partitioned into a plurality of storage spaces in the vertical direction by the shelves 37, and the decompression chamber 13 is provided in the lowermost storage space.

  As shown in FIG. 2, the quick-freezing chamber 4, the freezing chamber 5 and the vegetable chamber 6 are provided with storage containers 3b, 4b, 5b and 6b integrally with a door provided in front of each storage chamber. Yes. The ice making room door 3a, the quick freezing room door 4a, the freezing room door 5a and the vegetable room door 6a are each put on a handle portion (not shown) and pulled out to the front side, thereby storing containers 3b, 4b, 5b, 6b. Can be pulled out.

  The decompression chamber 13 is provided with a decompression chamber lid 16 that opens and closes the front opening. When the refrigerator compartment doors 2a, 2b are opened, the drawer container of the decompression chamber 13 can be pulled out by placing the hand on the handle portion 27 of the decompression chamber lid 16 and pulling the lid member 16 forward. Yes. Details thereof will be described later.

  In the refrigerator body 1, a refrigeration cycle for performing refrigeration and refrigeration is configured by connecting a compressor, a condenser, a capillary tube, an evaporator serving as a cooling source that takes away the heat of vaporization of the refrigerant, and a compressor again in this order. (Not shown). The evaporator serving as a cooling source is installed behind the ice making chamber 3, the quick freezing chamber 4 and the freezing chamber 5, and the cooler of the evaporator is sent to the ice making chamber 3, the quick freezing chamber 4 and the freezing chamber 5 by the blower fan. Sent. Moreover, it sends to each storage room of the refrigerator compartment 2 and the vegetable compartment 6 through the damper apparatus which can be opened and closed when it becomes below predetermined refrigeration temperature. In addition, after the cool air is blown into each storage chamber, it has a circulation structure in which it is cooled again by the evaporator and blown. Each storage chamber is maintained at a predetermined temperature by temperature control by a control device using a temperature sensor.

  Next, FIG. 3 shows a sectional view taken along line BB in FIG. The refrigerator compartment door 2a is supported so as to be rotatable about the support shaft S1. The refrigerator compartment door 2a is provided with a translucent resin-molded door pocket 32 for storing drinks or the like on the inner side. On the back surface of the refrigerator door 2a, there is provided a rotary partition 2a2 configured to be swingable by a biasing force of a torsion coil spring and a guide.

  The rotating partition 2a2 prevents cold air from leaking between the refrigerator compartment doors 2a and 2b at the position along the left refrigerator compartment door 2a when the refrigerator compartment doors 2a and 2b are closed (see FIG. 1). On the other hand, when the refrigerator door 2a is opened, the refrigerator door 2a is configured to swing in the thickness direction (indicated by a two-dot chain line) so as not to disturb the user.

  Further, the right refrigerator compartment door 2b is supported so as to be swingable about the support shaft S2, and a translucent resin-molded door pocket 32 into which a drink or the like is placed protrudes on the inner side.

<Configuration of decompression chamber 13>
The decompression chamber 13 shown in FIG. 3 is a gas regulation chamber in which the internal air is sucked by the vacuum pump 12 and decompressed to an atmospheric pressure lower than the atmospheric pressure, for example, 0.8 atmospheric pressure (80 kPa). That is, the decompression chamber 13 creates a special air atmosphere for preventing oxidation of food, maintaining freshness of vegetables, and the like.

  As shown in FIG. 2, a cold air inlet 19 of the refrigerator compartment 2 is provided at the rear of the decompression chamber 13, and the decompression chamber 13 is opened by sucking air around the decompression chamber 13 and flowing the cool air as shown by an arrow. Cool indirectly.

  As shown in FIG. 3, when the refrigerator compartment door 2b is closed, a predetermined space is formed between the door pocket 32 of the refrigerator compartment door 2b and the lid member 16 of the decompression chamber 13 so as not to contact each other. ing.

  Next, FIG. 4 is a perspective view of the configuration of the decompression chamber 13 as viewed from above. FIG. 5 is a perspective view of the lid member and the food tray as viewed from the front upper side. The decompression chamber 13 has an opening 14r on the front surface, and a flat and long outer member 14 that is integrally formed by heat-welding a member divided into two parts up and down, and moves forward and backward. An outer peripheral wall is formed by the lid member 16 that opens and closes the opening 14r.

  The lid member 16 is configured by engaging a food tray 16b with a lid portion 16a. As shown in FIG. 6, the locking rib 16e on the food tray 16b side is locked to the stopper 16d on the lid 16a side. Moreover, the convex part by the side of the food tray 16b latches to the concave latching | locking part 16f of the cover part 16a. Thereby, the cover part 16a and the food tray 16b are fixed, and the cover part 16a and the food tray 16b move back and forth integrally. The grip portion 27 is positioned in the concave portion 16h of the lid portion 16a, so that the user can easily operate by inserting a hand into the grip portion 27.

  The grip portion 27 is provided with a valve 16v, and the recess 16h is formed with a valve hole (not shown) that is opened and closed by the valve 16v to switch the flow of internal and external air. The grip part 27 can be moved up and down. When the grip part 27 is in the lower position shown in FIG. At this time, the valve 16v closes the valve hole to prevent the inflow of air into the decompression chamber 16. On the other hand, when the gripping portion 27 is set to the upper position shown in FIG. 4, the valve 16 v opens the valve hole and allows air to flow into the decompression chamber 16, thereby releasing the decompressed state inside the decompression chamber 16. That is, the valve 16v is operated in conjunction with the vertical movement of the grip portion 27 to open and close the valve hole.

  Next, the freshness maintaining means will be described with reference to FIGS. FIG. 6 is a side cross-sectional view illustrating a schematic configuration of the lid member. FIG. 7 is a perspective view of the freshness holding means as viewed from the front upper side.

  In the present embodiment, as shown in FIG. 5, the freshness retaining means 17 is disposed on the reinforcing support portion 16j at the center of the lid portion 16a (the back side of the concave portion 16h in FIG. 4). The reinforcing support portion 16j has a plurality of rib-shaped portions 16j3 in the vertical direction, and the rib-shaped portion 16j3 is connected to the support portions 16j1 and 16j2 on the upper side and the lower side. The reinforcing support portion 16j supports the upper wall and the lower wall in the vicinity of the opening of the outer member 14, and suppresses deformation of the outer member 14 during decompression. Since the reinforcing support portion 16j has a strength to suppress deformation of the outer shell member 14, the reinforcing support portion 16j itself does not deform or becomes very small when the decompression chamber 16 is decompressed. Therefore, the freshness holding member 17 can be prevented from falling off by arranging the freshness holding member 17 in the vicinity of the reinforcing support portion 16j.

  The attachment structure to the freshness holding member 17 is to lock the locking portion 17a shown in FIG. 7 to the front wall of the food tray 16b. A plurality of locking portions 17a are provided at a predetermined interval, and the freshness holding member 17 is fixed so as not to drop off by elastically sandwiching the front wall of the food tray 16b with the plurality of locking portions 17a.

  Further, the protrusion 16g provided on the front wall of the food tray 16b is positioned in the recess 17c provided between the plurality of engaging portions 17a of the freshness holding means 17, so that the freshness holding means 17 in the left-right direction. Suppressing movement. In addition, this effect can be show | played by setting it as the structure which has the recessed part 17c engaged with the protrusion 16g provided in either the food tray 16b fixed to the cover member 16 or the cover member 16 in the freshness holding means 17. .

  Further, a rib 17b is formed at the same height as the locking portion 17a of the freshness holding member 17. The rib 17b is elastic when the front wall of the food tray 16b is elastically sandwiched between the plurality of locking portions 17a by reducing the contact area with the food tray 16b at the height of the locking portion 17a of the freshness holding member 17. It has the function of making it easy for the action of force to concentrate on the locking portion 17a.

  The freshness retaining means 17 is disposed in the vicinity of the reinforcing support portion 16j. Therefore, the locking portion 17a and the rib 17b that the freshness retaining means 17 locks to the food tray 16b are located at a fixed position during decompression or in a displacement region within a predetermined range near the fixed position. As a result, it is possible to prevent the freshness holding means 17 from being displaced or unlocked during decompression.

  Next, FIG. 8 is an upper cross-sectional view for explaining a schematic configuration of the present invention. A pump connection portion 14 i of an insertion hole, which is a connection portion with the vacuum pump 12, is disposed behind the side wall of the outer member 14.

  As a result, each time the decompression chamber 13 is decompressed, as shown by the arrow in FIG. 8, air circulation occurs and the freshness-keeping component is efficiently released from the freshness-keeping means 17 to the entire decompression chamber 13 without using a release device or the like. Can be made.

  In the present embodiment, the pump connection portion 14i is formed at the rear side of the side wall of the outer member 14. However, the present invention is not limited to this, and is not limited thereto. By forming on any of the walls, the same effect can be obtained.

  The freshness-holding means 17 has a freshness-holding component inside the container, and the container has a discharge port (not shown) for discharging the freshness-holding component from the inside to the outside, and the freshness-holding means other than the discharge port A welded portion (not shown) around 17 and an engaging portion 17 a that is attached to and detached from the lid member 16 are provided. Thereby, parts other than a discharge port can prevent discharge | release of a volatile freshness maintenance component by a welding part, and can discharge | release a volatile freshness maintenance component from a predetermined | prescribed discharge port.

  Further, the freshness holding member 17 is located in the vicinity of the valve hole. For this reason, when the decompression of the decompression chamber 13 is released, the volatile component released from the freshness maintaining member 17 is caused to flow behind the decompression chamber 13 by the air flowing into the decompression chamber 13 from the valve hole. Therefore, when the lid member 16 is opened, the amount of the volatile component released from the freshness maintaining member 17 is suppressed to the outside.

DESCRIPTION OF SYMBOLS 1 Refrigerator body 2 Refrigeration room 3 Ice making room 4 Quick freezing room 5 Freezing room 6 Vegetable room 12 Vacuum pump (pressure reduction means)
13 Decompression chamber (storage chamber, gas control chamber)
14 Outer shell (storage container)
16 Decompression chamber lid (lid member)
17 Freshness holding means

Claims (3)

A box-shaped storage chamber having a side wall, a back wall, a top wall, and a bottom wall, a lid member that opens and closes the opening of the storage chamber, a decompression unit that lowers the storage chamber to a pressure lower than atmospheric pressure, and the lid member Freshness retaining means for retaining the freshness of stored items arranged on the storage room side of
The refrigerator is characterized in that the suction port of the decompression means is formed in any one of a rear part from the center of the side wall, a rear part from the center of the top wall, a rear part from the center of the bottom wall, and the back wall.   The freshness-holding means has a freshness-keeping component inside the container, and the container is formed with a discharge port for discharging the freshness-holding component from the inside to the outside, and around the freshness-holding means other than the discharge port. The refrigerator according to claim 1, further comprising: a welded portion; and a locking portion that is attached to and detached from the lid member.   The refrigerator according to claim 1 or 2, wherein the freshness maintaining means has a recess that engages with a protrusion provided on either the lid member or a food tray fixed to the lid member.