JP6356388B2 - refrigerator - Google Patents

Description

  Embodiments of the present invention relate to refrigerators.

  As a deterioration factor of stored products such as food stored in the refrigerator, there is oxidation due to oxygen present in the air. Then, the refrigerator which can suppress the oxidation of stored goods and maintain the freshness of stored goods by reducing the oxygen of the space which stores a foodstuff is known (for example, refer patent documents 1 and 2).

  Such a refrigerator includes a storage chamber stored in a storage chamber and an oxygen reduction device that reduces oxygen in the storage chamber, and stores the stored item from an opening provided in the storage chamber, and then opens the opening. The oxygen reduction device is operated in a state of being blocked by the door to reduce oxygen in the storage chamber.

JP 2004-218924 A Japanese Patent Laid-Open No. 9-287869

  In the refrigerator as described above, a sealing member is provided between the storage chamber and the door in order to efficiently reduce oxygen in the storage chamber, thereby improving the hermeticity of the storage chamber. Since the door is opened and closed every time it is taken in and out, it is required to stably seal between the storage chamber and the door even if the door is repeatedly opened and closed.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a refrigerator that reduces oxygen in a storage room provided in a storage room of the refrigerator and can stably seal between the storage room and the door even when the door is repeatedly opened and closed. And

The embodiment includes a storage chamber, a container having an opening housed in the storage chamber, a door that closes the opening of the container, and a door that holds the door in a state of closing the opening of the container. In the refrigerator including a holding mechanism, the door holding mechanism includes a holding member provided on one of the container and the door, an urging means that elastically supports the holding member, and the other of the container and the door. and a provided with insert, the holding member includes a pair of holding pieces that are spaced apart, and a pair of support portions that elastically supports a pair of the pinching piece, the opposing direction of the clamping piece The urging means includes a frame provided integrally with the container and an elastic piece provided integrally with the holding member, and the elastic piece abuts on the frame. The holding member is attached from both sides in the opposite direction of the clamping piece. The insert is elastically supported, and the insertion body has a wide portion wider than the gap between the pair of sandwiching pieces on the distal end side, a narrow portion narrower than the wide portion on the proximal end side of the wide portion, and the wide portion. A tapered portion that becomes narrower toward the distal end on the distal end side of the portion, and the narrow portion is inclined shorter than the tapered portion that is gradually narrowed toward the proximal end side of the insert from the wide portion. The insert is inserted between the pair of sandwiching pieces when the door is closed, and the pair of sandwiching pieces sandwich the inclined portion and draws the insert into the front end side.

It is a front view concerning one embodiment. It is a front view of a vegetable room. It is a top view of a vegetable room. It is a side view of the state which attached the holding body to the vegetable compartment. It is the sectional view on the AA line of FIG. It is a side view of the vegetable compartment which shows the state which attaches a hypoxic container to a vegetable compartment. It is a side view of the vegetable compartment where the oxygen reduction container was attached to the holding body. It is the BB sectional view taken on the line of FIG. It is a side view of the vegetable compartment which shows the state which attaches a drawer container to a hypoxic container. It is a side view of the vegetable compartment where the drawer container was attached to the oxygen reduction container. It is a front view of a door holding mechanism. It is CC sectional view taken on the line of FIG. It is a figure which shows a motion of a door holding mechanism. It is DD sectional drawing of FIG. It is a disassembled perspective view of an oxygen reduction unit. It is the longitudinal cross-sectional view seen from the front of a water supply apparatus. It is a top view of a water supply apparatus. It is a top view of a water supply apparatus in the example of a change.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The refrigerator 10 of this embodiment has an oxygen reduction device 100 in a storage chamber formed inside the cabinet 12.

(1) Refrigerator 10
The refrigerator 10 is demonstrated based on FIG. FIG. 1 is a longitudinal sectional view of the entire refrigerator 10.

  The refrigerator 10 includes a cabinet 12 that opens to the front surface in which a heat insulating material is disposed between an outer box that forms an outer shell and an inner box that forms a storage space. The inside of the cabinet 12 is partitioned into an upper refrigeration space and a lower refrigeration space by a heat insulating partition wall 24.

  The refrigerated space is a space that is cooled to a refrigerated temperature (for example, 2 to 3 ° C.), and the interior is further partitioned vertically by a partition 26, and the refrigerated chamber 14 is provided with a plurality of mounting shelves in the upper space. And a vegetable compartment 16 is provided in the lower space.

  The freezing space arranged below the vegetable room 16 is a space cooled to a freezing temperature (for example, −18 ° C. or lower), and an ice making room 22 and a small freezer room 18 equipped with a relatively small volume automatic ice making machine. Are provided side by side, and a freezer compartment 20 is provided below the left and right.

  Open doors 14a and 14b are provided in front of the refrigerator compartment 14, and drawer doors 16a, 18a, 20a and 22a are provided in the vegetable compartment 16, the small freezer compartment 18, the freezer compartment 20 and the ice making compartment 22, respectively. Is provided.

(2) Vegetable room 16
Next, the vegetable compartment 16 is demonstrated based on FIG.2 and FIG.3. FIG. 2 is a front view of the vegetable compartment 16, and FIG. 3 is a plan view of the vegetable compartment 16.

  In the lower part of the vegetable compartment 16, a vegetable container 28 is provided that is pulled forward together with the opening operation of the door 16 a. In the upper part of the vegetable compartment 16, an oxygen reduction container 30 and a holding body 34, which will be described later, are provided so as to be offset to the left and right sides.

(3) Oxygen reduction container 30
Next, the oxygen reduction container 30 is demonstrated based on FIGS.

  As shown in FIG. 10, the oxygen-reducing container 30 is a container that constitutes a storage room that is suspended in a holding body 34 attached below the partition body 26 and fixed in the vegetable compartment 16, and the front surface is open. It consists of a rectangular parallelepiped box. Inside the oxygen-reducing container 30, a drawer container 36 is provided so as to be drawable. The front opening of the oxygen reduction container 30 is closed by a door 38 that also serves as a front plate of the drawer container 36. An oxygen reduction device 100 is attached to the back surface of the oxygen reduction container 30.

(3-1) Holder 34
Next, the holding body 34 will be described in detail with reference to FIGS. 4 and 5.

  The holding body 34 includes a storage holding portion 33 that holds the oxygen reduction container 30 and a device holding portion 35 that holds the oxygen reduction device 100.

  The storage holding unit 33 includes a horizontal plate 40 and a hanging tool 96. The horizontal plate 40 has a plurality of column-like hanging tools 96 fixed to the upper surface thereof, and the partition 26 is fixed to the upper surface of the hanging tool 96 by screws or the like. Thereby, the horizontal plate 40 is horizontally arranged below the partition body 26 with a space therebetween. In this example, nine suspension tools 96 are provided, three in the front-rear direction and three in the width direction, and fix the storage holder 33 in a suspended state (see FIG. 2).

  On both sides of the horizontal plate 40, a left holding surface 42 and a right holding surface 44 extend downward. A rear holding surface 46 extends downward from both sides of the rear end portion of the horizontal plate 40 (see FIG. 5). The height dimensions of the left holding surface 42, the right holding surface 44, and the rear holding surface 46 can be set to about 1/3 of the height dimension of the rectangular parallelepiped oxygen reduction container 30.

  A device holding portion 35 extending downward is provided at the center in the width direction at the rear end of the horizontal plate 40 (see FIGS. 4 and 5). The device holding portion 35 includes a support plate 48 that hangs downward from the horizontal plate 40, a support piece 52 that is bent substantially vertically from the lower end portion of the support plate 48 and extends forward, and a claw-like shape provided at the tip of the support piece 52. And a locking portion 54. The support plate 48 is provided with an opening 49 that communicates the inside of the oxygen reduction container 30 and the oxygen reduction device 100, and a sealing member 51 that surrounds the opening 49 is provided on the front surface of the support plate 48.

  The height dimension of the support plate 48, that is, the vertical distance between the horizontal plate 40 and the support piece 52 is formed slightly longer than the height dimension of the oxygen reduction container 30.

  Fixed rails 56 are provided on the inner surfaces of the left holding surface 42 and the right holding surface 44 along the front-rear direction. The fixed rail 56 is composed of a pair of upper and lower ridges formed horizontally. The distance between the pair of upper and lower protrusions is greater at the front than at the rear.

  The left and right rear holding surfaces 46 are provided with receiving pieces 63 and 65 that pass through rectangular openings 62 and 62 and project forward from the left and right side edges and the lower edge of the opening 62 ( (See FIGS. 4 and 5).

(3-2) Oxygen reduction container 30
Next, the oxygen reduction container 30 will be described with reference to FIGS.

  The oxygen reduction container 30 has a top face 64, a left face 66, a right face 68, a bottom face 70, and a rear face 72, and has a rectangular parallelepiped shape opened to the front face. A pair of left and right protrusions 74 protrude rearward from the rear end of the upper surface 64. These protrusions 74 are fitted into a pair of left and right openings 62 of the rear holding surface 46 of the storage holder 33, and the lower surface of the protrusion 74 is provided at the lower end edge of the opening 62 and supported by the receiving piece 63.

  A movable rail 76 extending along the front-rear direction is provided on the ridge on the outer upper portion of the left surface 66 and the right surface 68 of the oxygen reduction container 30. The height dimension of the front portion of the movable rail 76 is formed larger than the height dimension of the rear portion. The movable rail 76 engages with the fixed rail 56 and slides from the front to the rear. As a result, the upper portion of the oxygen reduction container 30 is supported by the storage holder 33, and the oxygen reduction container 30 is attached to the holding body 34.

  A second fixed rail 90 extending along the front-rear direction is provided inside the left surface 66 and the right surface 68 of the oxygen reduction container 30.

  A locking projection 94 that protrudes downward is provided at the rear of the bottom surface 70 of the oxygen reduction container 30. The locking protrusion 94 is a protrusion that extends along the width direction, functions as a reinforcing rib that reinforces the bottom surface of the oxygen reduction container 30, and is provided at the tip of the support plate 48 of the device holding portion 35 described above. The locking portion 54 is locked, and the lower portion of the oxygen reduction container 30 is fixed to the support plate 48.

  In the present embodiment, the oxygen-reducing container 30 is fixed to the support plate 48 by engaging the claw-shaped engaging part 54 provided on the apparatus holding part 35 with the engaging protrusion 94 of the oxygen-reducing container 30. For example, the oxygen-reducing container 30 may be fixed to the support plate 48 by screwing the locking projection 94 provided on the oxygen-reducing container 30 and the support plate 48 of the apparatus holding unit 35.

  The rear surface 72 of the oxygen reduction container 30 is provided with an opening 73 at a position facing the opening 49 of the support plate 48.

(3-3) Drawer container 36
Next, the drawer container 36 is demonstrated based on FIG.9 and FIG.10.

  The drawer container 36 is a box that opens to the upper surface, and a space for storing stored items such as food is provided in the drawer container 36.

  The drawer container 36 is moved in the front-rear direction with respect to the oxygen reduction container 30 by the rollers 92 provided at the rear portions of the left and right side surfaces sliding on the second fixed rail 90 provided inside the oxygen reduction container 30. It can be withdrawn.

  The door 38 constituting the front surface of the drawer container 36 is a drawer-type door that is pulled out together with the drawer container 36, and is provided in a shape that covers all the openings on the front surface of the oxygen reduction container 30. A gasket 39 is provided around the rear surface of the door 38, and when the door 38 is closed, the gasket 39 abuts on a flange portion 83 that protrudes outward from the peripheral edge of the front opening of the oxygen reduction container 30. . Thereby, the gasket 39 seals between the oxygen reduction container 30 and the door 38, and seals the inside of the oxygen reduction container 30. The door 38 closed in this way is kept closed by the oxygen reduction container 30 and the door holding mechanism 178 provided on the door 38.

(3-4) Door holding mechanism 178
Next, the door holding mechanism 178 will be described with reference to FIGS.

  The door holding mechanism 178 includes a holding member 179 provided on one of the oxygen reduction container 30 and the door 38, and an insert 180 provided on the other of the oxygen reduction container 30 and the door 38. The door 83 is inserted when the door 83 is closed. 180 is held by the holding member 179 to hold the door 38.

  In the present embodiment, a case where the holding member 179 is provided outside the oxygen reduction container 30 and the insert 180 is provided on the door 38 will be described. However, the holding member 179 is provided on the door 38 and the insert is provided outside the oxygen reduction container 30. 180 may be provided. In the present embodiment, the case where the door holding mechanism 178 is provided on the left and right side portions of the oxygen reduction container 30 will be described.

  Since the structure of the door holding mechanism 178 provided on the left and right sides of the oxygen reduction container 30 is the same, the door holding mechanism 178 provided on the right side of the oxygen reduction container 30 will be described here, and the door holding mechanism on the left side will be described. A description of the structure of the mechanism 178 is omitted.

  The holding member 179 is attached to the front part of the right surface 68 of the oxygen reduction container 30, a pair of support parts 182 protruding forward from the main body 181 toward the door 38, and attached to the tips of the pair of support parts 182. The holding piece 183 is provided.

  As shown in FIG. 12, the main body 181 includes a cylindrical insertion portion 185, and a mounting boss 184 that protrudes outward from the right surface 68 of the oxygen reduction container 30 is inserted into the insertion portion 185. The mounting boss 184 has a protruding height from the right surface 68 larger than the axial length of the insertion portion 185, and when the mounting boss 184 is inserted through the insertion portion 185, the mounting boss 184 protrudes from the insertion portion 185. A screw 186 is screwed into the mounting boss 184 inserted into the insertion portion 185 of the main body 181, whereby the main body 181 is mounted between the head of the screw 186 and the right surface 68 of the oxygen reducing container 30. It is supported so as to be rotatable around the axis of.

  The pair of support portions 182 protrudes integrally from the front surface of the main body 181 toward the door 38 (that is, toward the front) along the right surface 68 of the oxygen reduction container 30. The pair of support portions 182 expands so that the main body 181 side moves away in the vertical direction, and the front end sides protrude forward substantially parallel to each other, and can be elastically deformed so that the interval in the vertical direction is widened. Is provided. The pair of support portions 182 is provided with an attachment portion 182a for attaching the holding piece 183 at the tip, and elastically supports the holding piece 183 attached to the attachment portion 182a.

  The pair of sandwiching pieces 183 is composed of a roller that is pivotally supported by the mounting portion 182a, and a pair of supports that are rotatable around a rotation shaft 183a that is perpendicular to the right surface 68 while being spaced apart in the vertical direction along the right surface 68. The portion 182 is provided. The pair of sandwiching pieces 183 made of this roller guides the insert 180 that is inserted into and removed from the opposing gap 183b of the pair of sandwiching pieces 183 when the door 38 is opened and closed.

  Such a holding member 179 is elastically supported from both sides in the opposing direction (that is, the vertical direction) of the clamping piece 183 by the biasing means 187, and movement in the vertical direction is restricted.

  Specifically, the urging means 187 includes a pair of upper and lower elastic pieces 188 extending along the upper and lower surfaces with a gap from the upper and lower surfaces of the main body 181, and a frame body 189 provided outside the pair of elastic pieces 188. It is configured.

  The frame 189 has a U-shape that surrounds the upper, lower, and rear sides of the main body 181 of the holding member 179, and a pair of support portions 182 that extend from the front surface of the main body 181 are provided on the front of the frame 189. Projecting from the opening 189a toward the door 38.

  One end of the pair of elastic pieces 188 is connected to the main body 181 of the holding member 179, and forms a spherical contact portion 188a in which the other end swells. The pair of elastic pieces 188 are disposed inside the frame body 189 in a state of being elastically deformed and bent inward (that is, the main body 181 side of the holding member 179), and an abutting portion 188a provided at the tip is a frame body 189. , And elastically support the holding member 179 while urging the holding member 179 from both sides in the vertical direction.

  Thus, in a state where the holding member 179 receives no external force from other than the urging means 187, the insert 180 provided in the door 38 with the opposed gap 183 b of the pair of sandwiching pieces 183 as shown in FIG. Is held at a predetermined position opposite to. Further, when the holding member 179 receives an external force other than the biasing means 187 and the main body 181 of the holding member 179 rotates around the mounting boss 184, the pair of holding pieces 183 are moved in the vertical direction as shown in FIG. , The urging force of the elastic piece 188 acts as a force for returning the main body 181 to the predetermined position.

  The urging means 187 that elastically supports the holding member 179 from both sides in the vertical direction is provided more easily to be elastically deformed than the pair of support portions 182 that elastically support the pair of sandwiching pieces 183 and is inserted into the pair of sandwiching pieces 183. When the body 180 comes into contact, the elastic piece 188 of the urging means 187 is elastically deformed before the pair of support portions 182 are elastically deformed, and the opposing gap 183b of the pair of holding pieces 183 is held so as to face the insert 180. The main body 181 of the member 179 rotates around the mounting boss 184.

  The insert 180 protrudes rearward from the side of the door 38 toward the holding member 179 provided in the oxygen reduction container 30 and is inserted into the opposing gap 183b of the pair of sandwiching pieces 183 when the door 38 is closed. The insert 180 has a wide portion 190 wider than the gap S between the pair of sandwiching pieces 183 on the front end side (rear end side), and a width narrower than the wide portion 190 on the base end side (front end side) of the wide portion 190. The narrow part 191 is provided.

  A tapered portion 192 is formed on the distal end side of the wide portion 190 and becomes narrower toward the distal end. The narrow portion 191 includes an inclined portion 193 that gradually narrows from the wide portion 190 toward the base end side, and a constant width portion 194 that extends with a constant width from the base end side of the inclined portion 193. The equal width portion 194 is provided with a width substantially equal to the interval S between the pair of sandwiching pieces 183, and the inclined portion 193 provided between the equal width portion 194 and the wide portion 190 is greater than the interval S between the pair of sandwiching pieces 183. Widely provided. A reinforcing portion 195 that gradually increases in width toward the door 38 is formed on the base end side of the equal width portion 194, and the door 38 is connected to the reinforcing portion 195.

  In the door holding mechanism 178 having such a configuration, the door 38 is opened because the opposed gap 183b of the pair of sandwiching pieces 183 faces the insertion body 180 by receiving the urging force from the urging means 187. When the door is closed from the state, the tapered portion 192 of the insertion body 180 is inserted into the opposing gap 183b of the pair of sandwiching pieces 183 and elastically deforms the pair of support portions 182 so as to spread the opposing gap 183b. 190 is passed through the opposing gap 183b, and the insert 180 is inserted between the pair of sandwiching pieces 183.

  At this time, the pair of sandwiching pieces 183 formed of rollers guide the insertion body 180 backward by sliding the tapered portion 192. And a pair of clamping piece 183 gets over the wide part 190, and clamps the inclination part 193 of the narrow part 191.

  In the present embodiment, since the pair of holding pieces 183 of the holding member 179 are provided so as to be movable in the vertical direction, the position of the insert 180 is vertically moved with respect to the opposing gap 183b of the pair of holding pieces 183 when the door is closed. Even if they are displaced in the direction, the tapered portion 192 at the tip of the insert 180 comes into contact with the pair of sandwiching pieces 183 to rotate the main body 181 of the holding member 179 around the mounting boss 184, so that the pair of sandwiching pieces 183 It faces the opposite gap 183b. Therefore, the insert 180 can be smoothly inserted into the facing gap 183b of the holding member 179.

  The inclined portion 193 is provided with a gradually narrower width from the wide portion 190 toward the base end side (that is, toward the front side) as described above, and thus when the pair of sandwiching pieces 183 sandwich the inclined portion 193, A force is generated to draw the insert 180 toward the holding member 179 (rear), and the door 38 is pulled rearward.

  In the present embodiment, the insert 180 has a distance T from the gasket 39 provided on the rear surface of the door 38 to the center in the front-rear direction of the equal width portion 194 of the insert 180 so that the pair of flanges 83 of the oxygen reduction container 30 has a pair. The holding piece 183 is provided shorter than the distance U to the center in the front-rear direction, and the pair of holding pieces 183 pulls the door 38 backward while compressing the gasket 39 when the door is closed. As a result, the door 38 is held in a state where the space between the oxygen reducing container 30 and the door 38 is sealed by the gasket 39.

(4) Oxygen reduction device 100
Next, the oxygen reduction device 100 will be described with reference to FIGS.

  The oxygen reduction device 100 uses the polymer electrolyte membrane method to reduce oxygen in the oxygen reduction container 30. As shown in FIG. 14, below the oxygen reduction unit 106 and the oxygen reduction unit 106, And the water supply apparatus 104 arrange | positioned at the back of the support plate 48 is provided.

  The oxygen reduction unit 106 is housed inside a box-shaped unit case 102 and is covered with a heat insulating material 107 provided inside the unit case 102.

  The front part of the unit case 102 is fixed to the back surface of the support plate 48 of the device holding unit 35, and the sealing member 51 seals between the rear surface 72 of the oxygen reduction container 30 and the support plate 48, while the support plate The inside of the oxygen reduction container 30 and the inside of the unit case 102 communicate with each other through the opening 49 provided in the opening 48 and the opening 73 provided in the rear surface 72 of the oxygen reduction container 30.

  Exhaust ports 137 for diffusing oxygen are opened on the back surfaces of the unit case 102 and the heat insulating material 107.

(5) Oxygen reduction unit 106
The oxygen reduction unit 106 is demonstrated based on FIG.14 and FIG.15. 14 is a longitudinal sectional view of the oxygen reduction device 100, and FIG. 15 is an exploded perspective view of the oxygen reduction unit 106. As shown in FIG. In FIGS. 14 and 15, the actual thickness of each member is thin, but in order to make the explanation easier to understand, the thickness is enlarged in the drawings.

  The oxygen reduction unit 106 includes a polymer electrolyte membrane (hereinafter simply referred to as “electrolyte membrane”) 116, an anode layer 118 provided at the rear of the electrolyte membrane 116, and a cathode layer 120 provided at the front of the electrolyte membrane 116. With.

  The electrolyte membrane 116 is made of Nafion, for example. “Nafion” is a copolymer of fluororesin based on sulfonated tetrafluoroethylene, and is a polymer with ionic conductivity. Only cations move inside, and anions and electrons are Nafion. Do not move in.

  The anode layer 118 and the cathode layer 120 are formed by laminating a carbon catalyst on which a catalyst containing platinum is supported and carbon paper, and the electrolyte membrane 116 is sandwiched between the anode layer 118 and the cathode layer 120 by hot pressing or the like. They are joined together.

  A pair of current collectors 122 and 124 are disposed outside the anode layer 118 and the cathode layer 120 that sandwich the electrolyte membrane 116, and water repellent layers 126 and 130 are disposed further outside the pair of current collectors 122 and 124. The water supply body 128 is disposed outside the water repellent layer 126 on the anode layer 118 side, and these are sandwiched by a pair of fixing members 132 and 134 to form a unit.

  The pair of current collectors 122 and 124 is made of a mesh-like titanium film having a surface plated with platinum, and is connected to an external power supply device. The current collector 122 conducts positive current to the anode layer 118 to collect current. The electric body 124 negatively energizes the cathode layer 120 and applies a voltage between the anode layer 118 and the cathode layer 120. In addition, an insulator 125 is provided between the current collectors 122 and 124 in order to prevent a short circuit due to contact between the current collectors 122 and 124. The insulator 125 is provided in a frame shape surrounding the anode layer 118 and the cathode layer 120 that sandwich the electrolyte membrane 116.

  The water repellent layers 126 and 130 are formed of a film body that allows water vapor to permeate without penetrating water, such as a cloth using a PTE (polyester) film, a PTFE (polytetrafluoroethylene) film, or a water repellent resin. Gaskets 127 and 131 are provided. The water repellent layer 126 on the anode layer 118 side supplies water vapor from the water supply body 128 to the anode layer 118 side while preventing liquid water from entering the anode layer 118 from the water supply body 128. The water repellent layer 130 on the cathode layer 120 side prevents water generated in the cathode layer 120 from flowing out from the opening 49 of the support plate 48 into the oxygen reduction container 30.

  The water supply body 128 disposed behind the water-repellent layer 126 on the anode layer 118 side is made of, for example, a sheet-like non-woven fabric formed from synthetic resin fibers, and is preferably at or above the temperature during operation of the oxygen reduction device 100. A synthetic resin fiber having a glass transition temperature of (for example, polypropylene) is used.

  The pair of fixing members 132 and 134 includes the electrolyte membrane 116, the anode layer 118, the cathode layer 120, the current collectors 122 and 124, the insulator 125, the water repellent layers 126 and 130, and the water supply body 128 laminated as described above. Clamp and fix. The fixing member 132 disposed on the anode layer 118 side has a rectangular parallelepiped shape, and as shown in FIG. 15, an exhaust port 136 penetrating in the front-rear direction is provided at a position corresponding to the exhaust port 137 of the unit case 102. ing.

  The fixing member 134 disposed on the cathode layer 120 side has a rectangular parallelepiped shape, and an intake port 138 penetrating in the front-rear direction is provided at a position corresponding to the opening 49 of the support plate 48. The air inlet 138 is composed of a plurality of slits extending in the vertical direction.

  The oxygen reduction unit 106 is comprised by the above member. The fixing member 132 and the fixing member 134 are fixed by a plurality of screws (not shown).

  As an example of the dimensions of each member constituting the oxygen reduction unit 106, the thickness of the fixing member 132 and the fixing member 134 in the front-rear direction is, for example, 10 mm, the thickness of the water supply body 128 is, for example, 0.2 mm, and the water repellent layer 126 and the water repellent layer 130 have a thickness of 0.2 mm, for example, the gasket 127 and the gasket 131 have a thickness of 0.2 mm, for example, the anode layer 118 has a thickness of 0.25 mm, and the electrolyte membrane 116 has a thickness of 0.2 mm, for example. The cathode layer 120 has a thickness of, for example, 0.25 mm, the insulator 125 has a thickness of, for example, 0.7 mm, and the current collector 122 and the current collector 124 have a thickness of, for example, 0.5 mm.

(6) Water supply device 104
Next, the water supply apparatus 104 is demonstrated based on FIG.14, FIG16 and FIG.17.

  The water supply device 104 includes a horizontally long rectangular parallelepiped water supply main body 140 that is elongated along the refrigerator width direction L.

  The water supply main body 140 is connected to the oxygen reducing device 100 by a connecting plate 141, and is fixed to the device holding unit 35 together with the oxygen reducing device 100 (see FIG. 14).

  At one end of the water supply main body 140 in the longitudinal direction (that is, the refrigerator width direction) L, for example, the left end of FIGS. 16 and 17, defrosted water generated in the evaporator of the refrigerator 10 on the top surface and water in the ice making tank A water intake port 147 through which water from a water source flows through the external flow path 148 is provided, and a drain port 155 for discharging the water in the water supply main body 140 to the outside is provided on the lower surface. The water discharged from the drain outlet 155 flows through the external flow path 156 and is sent to the evaporating dish provided in the machine room of the refrigerator 10.

  As shown in FIG. 16, the water intake 147 is provided with a connecting portion 160 that movably connects the distal end of the external flow path 148 connected to the water source to the water supply main body 140. The connecting portion 160 is a lid provided with an enlarged diameter portion 161 fixed to the tip of the external channel 148, a protruding portion 162 projecting upward from the partition wall 142, and a notch 163 through which the external channel 148 is inserted. A body 164. The protruding portion 162 has a ring shape with a plurality of intervals in the circumferential direction, and the enlarged diameter portion 161 is fitted on the outer side of the protruding portion 162 with an interval in the radial direction. In this state, the lid body 164 has the notch portion 163. The external flow path 148 is inserted through and fixed to the water supply body 140. Thereby, the lid body 164 holds the tip of the external flow path 148 so as to be movable between the water supply main body 140. In the present embodiment, the lid body 164 is rotated around the thin wall portion 164a by a self-hinge mechanism integrally connected to the water supply body 140 via the thin wall portion 164a. It is fixed to the water supply body 140 by the locking means.

  Similarly to the water intake port 147, the drain port 155 is provided with a connecting portion 166 that movably connects the tip of the external flow path 156 to the water supply main body 140.

  In addition, although this embodiment demonstrated the case where the connection parts 160 and 166 provided in the water intake port 147 and the drain port 155 connect the front-end | tip of the external flow path 148 with respect to the water supply main body 140, for example, Alternatively, the intake port 147 and the external channel 148, or the drain port 155 and the external channel 156 may be connected by a flexible connecting portion formed of a rubber material or the like. By connecting the water intake port 147 and the external flow channel 148 or the drain port 155 and the external flow channel 156 by the flexible connecting portion as described above, a gap between the water intake port 147 and the external flow channel 148 may be caused due to a manufacturing error. Even if there is a misalignment between the drain port 155 and the external flow path 156, the assembling work can be easily performed.

  The interior of the water supply main body 140 is vertically partitioned by a partition wall 142 that is inclined so as to become lower from one end to the other end in the longitudinal direction L, and a first flow path 144 is formed above the partition wall 142, and the partition wall A second flow path 146 is formed below 142, and the bottom surface of the first flow path 144 covers the second flow path 146. Such a water supply main body 140 is formed by vertically superimposing rectangular parallelepiped box bodies whose upper surfaces are open.

  The partition wall 142 is formed with a water supply hole 150 that opens vertically on the other end side in the longitudinal direction L, and the first flow path 144 and the second flow path 146 communicate with each other through the water supply hole 150.

  A water purification unit 152 made of an ion exchange resin is provided inside the first flow path 144, and water that has flowed into the water supply body 140 through the water intake 147 passes through the first flow path 144 in the longitudinal direction L. It flows from one end side to the other end side and flows into the second flow path 146 from the water supply port 150. When flowing through the first flow path 144, metal ions contained in the water supplied from the water source are removed by the water purifier 152, thereby preventing deterioration of the oxygen reduction unit 106.

  Below the water supply hole 150, a water storage part 154 that stores water flowing in from the first flow path 144 is formed, and a second flow is provided between the water storage part 154 and a drain port 155 provided on one end side in the longitudinal direction L. A weir portion 158 protrudes upward from the inner bottom surface of the path 146. That is, a water storage part 154 that stores water flowing in from the first flow path 144 is partitioned upstream of the weir part 158, and water overflowing from the water storage part 154 over the weir part 158 is discharged from the drain port 155. Then, it flows through the external flow path 156 and is sent to an evaporating dish provided in the machine room.

  The water reservoir 154 has a recess 153 that is recessed downward in the center in the longitudinal direction L. As shown in FIG. 17, the recess 153 has the width of the second flow path 146 widened, and the front-rear direction of the refrigerator is perpendicular to the longitudinal direction L from the first flow path 144 arranged above the second flow path 146. An introduction port 157 that protrudes in at least one direction (for example, forward) of M and opens upward is formed. A water supply body 128 that hangs down from the oxygen reduction unit 106 located above the water supply device 104 is inserted into the water storage part 154 from the introduction port 157, and the lower end of the water supply body 128 extends to the recess 153, and is stored in the water storage part 154. Soaked in water. Thereby, the water supply body 128 sucks up the water of the water storage part 154 by capillary action, and supplies water to the oxygen reduction unit 106.

  In the example described above, the inlet 157 that opens upward is formed by projecting the second channel 146 in the front-rear direction M from the first channel 144 at the position of the recess 153 in which the water supply body 128 is disposed. For example, as shown in FIG. 18, the first flow path 144 is recessed in the front-rear direction M so that the width of the first flow path 144 is narrower than the second flow path 146, thereby forming an introduction port 157 that opens upward. May be.

(7) Assembling method of the oxygen reducing container 30 Next, an assembling method of the oxygen reducing container 30 will be described with reference to FIGS.

  First, the unit case 102 of the oxygen reduction unit 106 is fixed to the back surface of the support plate 48 of the device holding unit 35, and the oxygen reduction device 100 is attached to the holding body 34.

  Next, as shown in FIGS. 4 and 5, the holding body 34 to which the oxygen reduction device 100 is attached is screwed to the partition body 26 via a plurality of hanging tools 96, thereby partitioning the holding body 34. While being supported by the body 26 and disposed in the upper left part of the vegetable compartment 16, the oxygen reduction device 100 is disposed in the rear portion of the vegetable compartment 16. And the front-end | tip of the external flow paths 148 and 156 are connected to the connection parts 160 and 166 provided in the water intake port 147 and the drain port 155 of the oxygen reduction apparatus 100. FIG.

  Here, after attaching the partition body 26 to the cabinet 12, the holding body 34 may be attached to the partition body 26 via the hanging tool 96, and before attaching the partition body 26 to the cabinet 12, The holding body 34 may be attached to the body 26, and then the partition body 26 may be attached to the cabinet 12.

  Next, as shown in FIG. 6, the oxygen-reducing container 30 is slid and inserted into the storage holder 33 from the front of the vegetable compartment 16. In this case, the movable rails 76 provided on the left and right side surfaces 66 and 68 of the oxygen reduction container 30 are inserted between a pair of upper and lower rails constituting the fixed rail 56 and are slid. The rear portion of the movable rail 76 is formed to be smaller in height than the front portion, and the distance between the pair of upper and lower ridges constituting the fixed rail 56 is such that the front portion of the fixed rail 56 is formed larger than the rear portion. It is easy to insert the movable rail 76 into the fixed rail 56.

  Then, as shown in FIGS. 7 and 8, the oxygen-reducing container 30 is inserted into the storage holder 33 until the rear surface 72 of the oxygen-reducing container 30 contacts the sealing member 51 provided on the front surface of the support plate 48. The oxygen reduction container 30 is attached to the storage holder 33 and disposed in the vegetable compartment 16.

  At this time, the protrusion 74 protruding rearward from the oxygen reduction container 30 is guided by the receiving piece 63 protruding from the left and right ends of the opening 62 of the support plate 48 and the receiving piece 65 protruding from the lower end edge. It is inserted in. Thereby, the oxygen reduction container 30 is positioned in the front-rear direction and the left-right direction with respect to the storage holder 33, and the sealing member 51 of the support plate 48 is outside the opening 73 provided on the rear surface 72 of the oxygen reduction container 30. Is attached to the rear surface 72 to communicate with the inside of the unit case 102 through the opening 49 of the support plate 48 and the opening 73 of the oxygen reduction container 30, and the oxygen reduction held by the device holding unit 35. Connected to the device 100.

  As shown in FIGS. 6 and 7, three screw holes 98 are provided in the fixed rail 56 in the right holding surface 44, and three screw holes 99 are also provided at the position of the corresponding movable rail 76 of the protrusion. Is provided. Therefore, using the screw 97, the screw 97 is screwed into the screw hole 99 from the screw hole 98, and the oxygen reduction container 30 is screwed to the storage holding part 33. Thereby, the oxygen reduction container 30 is fixed to the storage holding part 33 in the front-rear direction and the left-right direction. Further, the engagement portion 54 at the tip of the support piece 52 extending from the lower end of the support plate 48 engages with the engagement projection 94 provided at the rear portion of the lower surface 70 of the oxygen reduction container 30, thereby reducing the reduction. The oxygen reduction container 30 is fixed to the oxygen device 100.

  The positions of the screw holes 99 and the locking projections 94 provided in the oxygen reduction container 30 are determined from the positions of the screw holes 98 provided in the storage holding part 33 and the locking parts 54 provided in the apparatus holding part 35. When the oxygen reducing container 30 is fixed with the screw 97 or the locking portion 54, the oxygen reducing container 30 is pulled backward, and the rear surface 72 of the oxygen reducing container 30 is the sealing member of the support plate 48. 51 is pressed.

  Next, as shown in FIG. 9, the extraction container 36 is inserted from the front opening of the oxygen-reducing container 30 attached to the holding body 34, and is provided on the inner surfaces of the left and right side surfaces 66 and 68 of the oxygen-reducing container 30. 2. Rollers 92 provided on both side surfaces of the drawer container 36 are slid on the fixed rail 90 to slide the drawer container 36 backward.

  Then, as shown in FIG. 10, the extraction container 36 is inserted into the oxygen reduction container 30 until the gasket 39 of the door 38 contacts the flange portion 83 of the oxygen reduction container 30, and the extraction container 36 is accommodated in the oxygen reduction container 30. Meanwhile, the front opening of the oxygen reduction container 30 is closed by the door 38.

  At that time, the insertion member 180 provided in the door 38 is inserted into the opposing gap 183b of the pair of holding pieces 183 of the holding member 179 provided in the oxygen reduction container 30, so that the door 38 is inserted into the oxygen reduction container 30. The front opening of the oxygen-reducing container 30 is held in close contact with the gasket 39 provided. The pair of holding pieces 183 of the door holding mechanism 178 is elastically supported by the pair of support portions 182 so that the vertical interval is widened. Therefore, when the door 38 is pulled forward, the insert 180 is extracted, The door 38 slides forward. As described above, the oxygen reduction container 30 can be assembled.

(8) Operation State of Oxygen Reduction Device 100 Next, the operation state of the oxygen reduction device 100 will be described with reference to FIGS.

  The defrost water generated in the evaporator is supplied to the water supply device 104 via the external flow path 148 and purified through the first flow path 144 inside the water supply apparatus 104 and then the second flow path through the water supply hole 150. The water is stored in the water storage unit 154 at 146 (see FIG. 16).

  The water accumulated in the water reservoir 154 is sucked up by the water supply body 128 and held outside the water repellent layer 126 on the anode layer 118 side.

  When a voltage is applied between the current collectors 122 and 124 while water is held outside the water repellent layer 126, the water vapor supplied to the anode layer 118 through the water repellent layer 126 becomes hydrogen ions. It is decomposed and moves to the cathode layer 120 through the electrolyte membrane 116. In the cathode layer 120, hydrogen ions moved from the electrolyte membrane 116 react with oxygen in the air in the oxygen reduction container 30 to generate water, thereby reducing oxygen in the oxygen reduction container 30.

(9) Effect According to the present embodiment having the above-described configuration, when the door 38 is closed, the insert 180 provided on the door 38 has the pair of holding pieces 183 elastically supported by the pair of support portions 182. Since it is inserted between and sandwiched between the pair of clamping pieces 183, the door 38 can stably close the opening of the oxygen reducing container 30, and the oxygen reducing container 30 and the door 38 can be sealed. it can.

  Further, since the pair of sandwiching pieces 183 sandwich the insert 180 in the narrow portion 191 provided on the proximal side from the wide portion 190 when the door 38 is closed, the pair of sandwiching pieces 183 can sandwich the insert 180. It is possible to prevent the door 38 from being opened carelessly after being released.

  Further, when the door 38 is closed, the pair of sandwiching pieces 183 sandwiches the inclined portion 193 provided gradually narrower toward the proximal end side of the insertion body 180 and pulls the insertion body 180 toward the distal end side. Can be brought into close contact with the flange portion 83 of the oxygen reduction container 30, and the sealing performance between the oxygen reduction container 30 and the door 38 can be improved. In that case, by providing the gasket 39 between the flange portion 83 of the oxygen reduction container 30 and the door 38, the door 38 can be brought into close contact with the flange portion 83 of the oxygen reduction container 30 while compressing the gasket 39. The sealing performance between the oxygen reduction container 30 and the door 38 can be further enhanced.

  Further, in the above-described embodiment, since the pair of sandwiching pieces 183 includes a roller that guides the insert 180 in the front-rear direction when the door 38 is opened and closed, the insert 180 is inserted into and removed from the opposing gap 183b of the pair of sandwiching pieces 183. The door 38 can be opened and closed smoothly.

  In the above-described embodiment, since the pair of holding pieces 183 of the holding member 179 are provided so as to be movable in the vertical direction, the position of the insert 180 relative to the opposing gap 183b of the pair of holding pieces 183 when the door is closed. Even if it is displaced in the vertical direction, the tip 192 at the tip of the insert 180 comes into contact with the pair of sandwiching pieces 183 to rotate the body 181 of the holding member 179 around the mounting boss 184, thereby It opposes the opposing gap 183b of 183. Therefore, the insert 180 can be smoothly inserted into the facing gap 183b of the holding member 179.

  In addition, since the holding member 179 is elastically supported from both sides in the vertical direction by the biasing means 187, the holding member 179 applies external force from other than the biasing means 187 while providing the pair of holding pieces 183 so as to be movable in the vertical direction. When not received, the facing gap 183b of the pair of sandwiching pieces 183 can be held at a position facing the insert 180 provided on the door 38 facing forward.

  Further, the urging means 187 that elastically supports the holding member 179 from both sides in the up-down direction is provided to be more easily elastically deformed than the pair of support portions 182 that elastically support the pair of sandwiching pieces 183. When the insert 180 comes into contact, the elastic piece 188 of the urging means 187 is elastically deformed before the pair of support portions 182 are elastically deformed so that the opposing gap 183b of the pair of sandwiching pieces 183 faces the insert 180. The main body 181 of the holding member 179 rotates around the mounting boss 184.

  Therefore, even when the position of the insert 180 is shifted in the vertical direction with respect to the opposing gap 183b of the pair of sandwiching pieces 183 when the door is closed, the opposing gap 183b of the pair of sandwiching pieces 183 faces the tapered portion 192 of the insert 180. After that, the pair of support portions 182 can be elastically deformed to widen the gap between the pair of holding pieces 183, and the insert 180 can be smoothly inserted into the opposing gap 183b of the holding member 179.

  In the above-described embodiment, the case where the oxygen-reducing container 30 is provided inside the vegetable room 16 has been described. However, the present invention is not limited to this, and storage formed inside the cabinet 12 such as the refrigerator compartment 14 or the freezer compartment 20. It may be applied to a room.

  In the above-described embodiment, the case where oxygen in the oxygen reduction container 30 is reduced by using the polymer electrolyte membrane method has been described. Instead, oxygen in the oxygen reduction container 30 using a vacuum pump is described. May be reduced.

  In the above-described embodiment, the case where the door 38 that closes the opening of the oxygen reduction container 30 is a drawer-type door has been described. However, the present invention is not limited to this, and for example, the door rotates around a hinge. You may comprise by the rotating door which moves.

  As mentioned above, although embodiment of this invention was described, these embodiment was shown as an example and is not intending limiting the range of invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the invention described in the claims and equivalents thereof as well as included in the scope and gist of the invention.

DESCRIPTION OF SYMBOLS 10 ... Refrigerator 12 ... Cabinet 14 ... Refrigeration room 16 ... Vegetable room 18 ... Small freezer room 20 ... Freezer room 22 ... Ice making room 24 ... Thermal insulation partition wall 26 ... Partition body 28 ... Vegetable container 30 ... Hypoxic container 33 ... Storage holding part 34 ... Holding body 35 ... Device holding portion 36 ... Drawer container 38 ... Door 39 ... Gasket 100 ... Oxygen reducing device 102 ... Unit case 104 ... Water supply device 106 ... Oxygen reducing unit 140 ... Water supply main body 178 ... Door holding mechanism 179 ... Holding member 180 ... insert 181 ... main body 182 ... support portion 182a ... mounting portion 183 ... clamping piece 183a ... rotating shaft 183b ... facing gap 184 ... mounting boss 185 ... insertion portion 186 ... screw 187 ... biasing means 188 ... elastic piece 188a ... this Contact part 189 ... Frame body 190 ... Wide part 191 ... Narrow part 192 ... Fine part 193 ... Inclined part 194 ... Equal width part 195 ... Supplement Part

Claims (7)

A storage chamber; a container having an opening accommodated in the storage chamber; a door that closes the opening of the container; and a door holding mechanism that holds the door in a state of closing the opening of the container. In the refrigerator
The door holding mechanism includes a holding member provided on one of the container and the door, an urging means that elastically supports the holding member, and an insert provided on the other of the container and the door,
The holding member includes a pair of sandwiching pieces arranged at intervals, and a pair of support portions that elastically support the pair of sandwiching pieces, and is provided to be movable in an opposing direction of the sandwiching pieces,
The urging means includes a frame body provided integrally with the container and an elastic piece provided integrally with the holding member, and the elastic piece abuts the frame body so as to oppose the sandwiching piece. Elastically supporting the holding member from both sides in the direction,
The insertion body has a wide portion wider than a gap between the pair of sandwiching pieces on a distal end side, a narrow portion narrower than the wide portion on a proximal end side of the wide portion, and a distal end on a distal end side of the wide portion. With a taper that narrows toward
The narrow portion includes an inclined portion that is shorter than the tapered portion that is gradually narrowed toward the proximal end side of the insert from the wide portion,
The refrigerator is characterized in that when the door is closed, the insert is inserted between the pair of sandwiching pieces, and the pair of sandwiching pieces sandwich the inclined portion and draws the insert into the front end side. A gasket provided between the door and the peripheral edge of the opening of the container, and sealing the door and the opening of the container;
2. The refrigerator according to claim 1, wherein when the door is closed, the pair of clamping pieces clamps the inclined portion and draws the insertion body toward a distal end side to compress the gasket.   The refrigerator according to claim 1 or 2, wherein the pair of sandwiching pieces includes a roller that guides the insert when the door is opened and closed.   The refrigerator according to claim 3, wherein the urging means is more easily elastically deformed than the pair of support portions.   The refrigerator according to any one of claims 1 to 4, wherein the door is a drawer-type door.   The refrigerator according to any one of claims 1 to 5, further comprising an oxygen reduction device that reduces oxygen inside the container.   The refrigerator according to any one of claims 1 to 6, wherein the frame has a shape in which an opening is provided in front and surrounds the holding member.

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