EP2596310A2 - Unité de stockage et appareil de réfrigération comprenant l'unité de conservation - Google Patents

Unité de stockage et appareil de réfrigération comprenant l'unité de conservation

Info

Publication number
EP2596310A2
EP2596310A2 EP11733679.2A EP11733679A EP2596310A2 EP 2596310 A2 EP2596310 A2 EP 2596310A2 EP 11733679 A EP11733679 A EP 11733679A EP 2596310 A2 EP2596310 A2 EP 2596310A2
Authority
EP
European Patent Office
Prior art keywords
door
storage unit
handle
matching portion
rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11733679.2A
Other languages
German (de)
English (en)
Inventor
Yulei Ding
Jingdong Ma
Feng Tao
Zhenyu Yang
Defei Zhao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2596310A2 publication Critical patent/EP2596310A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/028—Details
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/46—Locks or fastenings for special use for drawers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
    • E05C3/02—Fastening devices with bolts moving pivotally or rotatively without latching action
    • E05C3/04—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
    • E05C9/08—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with a rotary bar for actuating the fastening means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/025—Secondary closures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/04—Treating air flowing to refrigeration compartments
    • F25D2317/043—Treating air flowing to refrigeration compartments by creating a vacuum in a storage compartment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • F25D25/024—Slidable shelves
    • F25D25/025—Drawers

Definitions

  • the present invention relates to a storage unit and a refrigeration appliance having such a storage unit. More particularly, the present invention relates to a storage unit which has an openable/closable door and is adapted to be used in a refrigeration appliance, and to a household or commercial refrigeration appliance having such a storage unit.
  • Chinese patent application publication CN1013243942A discloses a refrigeration appliance having a low pressure storage unit (also referred to as "vacuum storage unit").
  • the low pressure storage unit comprises a main body which defines a storage chamber having a food access opening, and a door which is adapted for opening and closing the access opening.
  • a sealing element is arranged between the door and the main body around the access opening to provide the low pressure storage unit with a vacuum seal, so that, when the storage chamber is closed, air inside the storage chamber can be drawn out by an evacuation device, such as a vacuum pump, to keep the storage chamber in a low pressure state, which helps to extend food storage time.
  • the low pressure storage unit is provided with a locking mechanism for locking the door and the main body together when the door in a closed position, and a handle provided in association with the locking mechanism.
  • the handle is provided on a front end of the door and comprises a handle rod provided in front of the door and extending across substantially the whole width of the door, right and left supporting parts connected to opposite ends of the handle rod and extending backwards therefrom respectively, and a handle manipulating part connected to a central portion of the rod.
  • the right and left supporting parts are pivotably connected to opposite ends of the door respectively, so that the handle is able to pivot with respect to the door.
  • the locking mechanism comprises a first matching portion provided on the tip end of each supporting part and a second matching portion provided in the outer surface of a side wall of the main body.
  • the first matching portion is rotated so as to be pushed into the second matching portion and engaged with it, so as to lock the door into the closed position.
  • airtightness of the low pressure storage unit is increased.
  • rotating the handle rod in a reverse direction locking state between the first matching portion and the second matching portion is released.
  • the handle when the handle is manipulated by a user, a distance must be maintained between the handle rod and the front surface of the door, so that the handle rod can rotate around a rotating axis, the rotating axis extending within the door and being defined by a support shaft which is connected with the supporting part.
  • the space occupied by the low pressure storage unit has to be increased, while the space utilization ratio of the refrigeration appliance is decreased.
  • the second matching portion is provided outside a side wall of the main body.
  • the first matching portion extends to the outside of the main body from the door. For this reason, in order to dispose the locking mechanism, enough distance must be maintained between the main body and an inner shell of the refrigeration appliance, which reduces the space utilization ratio of the refrigeration appliance. In addition, the first matching portion, which extends backwardly from the door to the outside of the main body, also negatively affects the whole appearance of the refrigeration appliance.
  • the movable first matching portion overlaps the second matching portion in at least one location, so that the first matching portion may collide with the second matching portion during the closing action of the door, which may result in damage of the locking mechanism.
  • a gap has to be maintained between the main body and a tray which is connected backward of the door, so that the tray can be pushed into and pulled out the main body smoothly.
  • the door and the tray will wobble when the door is opened or closed. More important, when such a gap is existed, the abutting position between the door and the main body may vary when the door is being closed, which may result in that the first matching portion and the second matching portion cannot be precisely locked into position, and that the locating of the sealing element between the door and the main body may be negatively affected. Similar technical problems are also found in the low pressure storage unit disclosed in EP1706688B1. SUMMARY OF THE INVENTION
  • an object of the present invention is to provide a storage unit which has a more compact structure, and a refrigeration appliance having such a storage unit.
  • the present invention in one aspect relates to a storage unit comprising a main body which defines a storage chamber having an opening portion for putting in or taking out articles; a door for selectively opening or closing the opening portion; a locking mechanism for locking the door and the main body when the door is in a closed position, wherein the locking mechanism comprises a first matching portion provided on the door and a second matching portion provided on the main body; and a handle mounted in association with the first matching portion; characterized in that the storage unit further comprises a rod connected between the handle and the first matching portion, wherein the rod is driven by the handle to rotate in a manner that a central axis thereof does not move relative to the door, and the first matching portion is driven by the rod to move.
  • the present invention in another aspect relates to a storage unit comprising a main body which defines a storage chamber having an opening portion for putting in or taking out articles; a door for selectively opening or closing the opening portion; a handle mounted to the door; and a locking mechanism for locking the door and the main body when the door is in a closed position, wherein the locking mechanism comprises a first matching portion provided on the door and a second matching portion provided on the main body; characterized in that the storage unit further comprises a rod connected between the handle and the first matching portion, wherein the rod is driven by the handle to rotate around a central axis thereof, and in turn, the rod drives the first matching portion to move.
  • the size and shape of the handle are not limited by the location of the first matching portion, so that a handle rod across opposite end surfaces of the door as disclosed in prior art is avoided. Further, it is completely possible to arrange the rod which acts as a rotational shaft inside the door, rather than protruded outside the door. Thus, it is expected that a storage unit having a compact structure and a smooth appearance will be obtained.
  • the handle is connected to the door in a manner of being rotatable around said central axis.
  • the handle and the rod are fixed together in a manner that no relative movement is allowed between them.
  • the first matching portion is driven by the rod to rotate around said central axis.
  • the first matching portion and the rod are fixed together in a manner that no relative movement is allowed between them.
  • the rod is fixed on the door without extending out beyond a front surface of the door.
  • the rod is entirely received in the door.
  • the rod is fixed on the door without being exposed from the front surface of the door.
  • the rod is fixed on the door without being exposed from any external surface of the door.
  • the door is provided with an accommodating space adapted to accommodate the rod and having an opening on one side, and a cover enclosing at least a part of the accommodating space.
  • one of the first matching portion and the second matching portion is provided with a camming curve surface
  • the other of the first matching portion and the second matching portion is provided with a column shaped locking portion for abutting against the camming curve surface
  • the locking portion has an axis parallel to the central axis of the rod, and the camming curve surface is capable of rotating around said central axis so as to be engaged with or disengaged from the locking portion.
  • the first matching portion and the handle are connected to the rod respectively in a manner that they are separate from each other in the direction of said central axis.
  • the handle is fixed in a middle portion of the rod, and the first matching portion is fixed to an end of the rod.
  • the present invention in yet another aspect relates to a storage unit comprising a main body which defines a storage chamber having an opening portion for putting in or taking out articles; a door for selectively opening or closing the opening portion; a locking mechanism for locking the door and the main body when the door is in a closed position, wherein the locking mechanism comprises a first matching portion provided on the door and a second matching portion provided on the main body; and a handle mounted to the door, wherein the handle is rotatable around a rotation axis and is kinetically coupled with the locking mechanism; characterized in that, when the door and the main body are locked together, at least a majority of the handle is received in the door.
  • the handle is kinetically coupled with the locking mechanism in a shaft transmission manner.
  • the present invention in yet another aspect relates to a storage unit comprising a main body which defines a storage chamber having an opening portion for putting in or taking out articles; a door for selectively opening or closing the opening portion; a locking mechanism for locking the door and the main body when the door is in a closed position, wherein the locking mechanism comprises a first matching portion provided on the door and a second matching portion provided on the main body; and a handle mounted to the door, wherein the handle is rotatable around a rotation axis and is kinetically coupled with the locking mechanism; characterized in that the handle transmits movement to the locking mechanism in a shaft transmission manner.
  • the size and shape of the handle are not limited by the location of the locking mechanism, so that a handle rod across opposite end surfaces of the door as disclosed in prior art is avoided. Further, it is completely possible to arrange the rotational shaft inside the door, rather than protruded outside the door, so that it does not significantly affect the size and appearance of the storage unit. Thus, it is expected that a storage unit having a compact structure and a smooth appearance will be obtained.
  • the handle is substantially in a shape of a plate.
  • the handle is substantially parallel to the door when the door and the main body are locked together.
  • At least a part of a front surface of the handle is substantially aligned with a front surface of the door when the door and the main body are locked together.
  • the door comprises an accommodating space which is recessed backwards from the front surface of the door, and at least a majority of the handle is received in the accommodating space when the door and the main body are locked together.
  • the first matching portion is fixed on the door without extending out beyond peripheral end surfaces of the door.
  • the storage unit further comprises an annular sealing element disposed around the opening portion, and the first matching portion is located in a loop shaped area encircled between the sealing element and the peripheral end surfaces of the door.
  • the door comprises a through slot which extends through the door from front to back and is separated from the peripheral end surfaces of the door, and the first matching portion passes through the through slot and extends to the back side of the door.
  • the second matching portion when the door is closed, the second matching portion is in the loop shaped area between the sealing element and the peripheral end surfaces of the door.
  • the main body is provided with an adjoining surface which is adapted to face towards the door and to be abutted by the door, and the second matching portion is connected to the adjoining surface.
  • the second matching portion protrudes from the adjoining surface towards the door, and comprises a locking portion which is adapted for locking with the first matching portion and is disposed in front of the adjoining surface.
  • the first matching portion and the second matching portion are not exposed outside the storage unit in a locked state.
  • the door comprises a holding device which is disposed in a manner that, when the door is opened, the first matching portion is held at a safe position, so as to avoid any colliding between the first matching portion and the second matching portion during the closing procedure of the door.
  • the holding device is disposed in a manner that, when the door is opened, the holding device applies a force to the handle to hold the handle in a predetermined position and holds the first matching portion in the safe position.
  • the door comprises a retention structure for limiting the handle from continue rotating after it reaches a first position or a second position, so as to limit the rotation of the handle to a range between the first position and the second position, wherein, in either of the first position and the second position, an angle formed between the handle and the door is smaller than 90 degrees.
  • the door and the main body in the first position, are in an unlocked state, and an angle formed between the handle and the door is no larger than 60 degrees, for example, in a range of 40 to 50 degrees.
  • the door and the main body are in a locked state, and the handle is substantially perpendicular to the horizontal plane and at least a majority of it is retracted into the door.
  • the storage unit comprises a holding device for applying a force to the handle after is reaches the first position to impose the handle with a tendency of continuing its rotation, which helps to hold the handle in the first position, and/or applying a force to the handle after is reaches the second position to impose the handle with a tendency of continuing its rotation, which helps to hold the handle in the second position.
  • the holding device comprises a torsion spring.
  • the storage unit further comprises a positioning mechanism which comprises a first positioning portion and a second positioning portion disposed on the door and the main body respectively, and by means of the cooperation between the first positioning portion and the second positioning portion, when the door is closed, the door is positioned in a fixed position or is kept within a fixed range smaller than a wobbling range of the door during the closing procedure.
  • a positioning mechanism which comprises a first positioning portion and a second positioning portion disposed on the door and the main body respectively, and by means of the cooperation between the first positioning portion and the second positioning portion, when the door is closed, the door is positioned in a fixed position or is kept within a fixed range smaller than a wobbling range of the door during the closing procedure.
  • At least some parts of the second positioning portion and the second matching portion are integrally formed.
  • the present invention in yet another aspect relates to a refrigeration appliance comprising a storage unit as defined in any of the above solutions.
  • the refrigeration appliance comprises a cabinet which defines a heat insulation storage chamber, wherein the storage unit is received in the storage chamber.
  • the storage unit is a low pressure storage unit for maintaining the storage chamber in a low pressure state.
  • Figure 1 is a schematic perspective view of a refrigeration appliance according to a preferred embodiment of the present invention, wherein the appliance door of the refrigeration appliance is not shown.
  • Figure 2 is a schematic assembled perspective view of a storage unit according to a preferred embodiment of the present invention.
  • Figure 3 is a schematic perspective view of the storage unit in an opened state according to a preferred embodiment of the present invention.
  • Figure 4 is a schematic perspective view of a main body of the storage unit according to a preferred embodiment of the present invention.
  • Figure 5a is an enlarged view of section A in Figure 4
  • Figure 5b is an exploded schematic view of a second matching portion of the locking mechanism shown in Figure 5a.
  • Figure 6 is an exploded schematic view of the storage unit according to a preferred embodiment of the present invention, wherein the door is in the opened state and is exploded.
  • Figure 7 is a perspective view of a door body according to a preferred embodiment of the present invention.
  • Figure 8 is a perspective view of the door body according to a preferred embodiment of the present invention, taken in another direction.
  • Figure 9 is an assembled perspective view of a brake unit according to a preferred embodiment of the present invention.
  • Figure 10a is an enlarged view of section B in Figure 7, and
  • Figure 10b is a schematic sectional view of a rod which is fixed behind the door.
  • Figure 11 a is a schematic partial sectional view of a low pressure storage unit according to a preferred embodiment of the present invention, showing a state when the door is in a closed position and a first matching portion is not engaged with a second matching portion of the locking mechanism
  • Figure 11 b is a schematic partial sectional view of the low pressure storage unit according to a preferred embodiment of the present invention, showing a state when the door and the main body are locked together.
  • Figure 12a is a schematic perspective view of the door according to a preferred embodiment of the present invention, showing a state when the handle is in a second position
  • Figure 12b is a partial sectional view of the door, showing a state when the handle is in the second position.
  • a refrigeration appliance 1 comprises a thermally insulated cabinet 2, with the cabinet 2 comprising an outer shell 2a, an inner shell 2b, and a thermal insulation layer (not shown) therebetween.
  • the cabinet 2 defines several thermally insulated storage compartments 3, 4 and 5 for storing articles such as foods therein.
  • these storage compartments comprise an upper refrigeration compartment 3, a lower freezing compartment 5, and a preservation compartment 4 which is located between the upper and lower compartments and is maintained at a temperature slightly higher than zero degree Celsius.
  • These storage compartments 3, 4 and 5 can be closed by corresponding doors (not shown).
  • the present invention is not limited to specific arrangements of the storage compartments of the refrigeration appliance.
  • the present invention can be applied for other types of refrigeration appliance well, such as a refrigerator having refrigerating and freezing compartments arranged one above the other, a side-by-side combination refrigerator, a refrigerator having a drawer type door, a refrigerator having French type doors, and the like.
  • the refrigeration appliance 1 has a closed-loop evaporative refrigeration system.
  • the refrigeration system comprises at least a compressor (not shown), a condenser (not shown), a throttling device (not shown) and an evaporator (not shown). Since this type of refrigeration system is well known in the prior art, its detailed explanation is omitted here. Of course, the refrigeration appliance 1 may also adopt other types of refrigeration systems (such as an absorption refrigeration system or a thermoelectric refrigeration system).
  • the refrigeration appliance 1 is provided with a low pressure storage unit 7 which can be maintained in a low pressure state, and an evacuation device (not shown) which is adapted for evacuating air from the storing chamber 32.
  • the evacuation device may comprise a vacuum pump and pipelines (not shown) connected between the vacuum pump and the low pressure storage unit 7.
  • the low pressure storage unit 7 is provided in the preservation compartment 4. It should be understood that, in an alternative embodiment, the low pressure storage unit 7 can be provided in other storage compartments, such as the refrigerating compartment 3, or a variable compartment whose temperature zone can be changed between a refrigerating temperature zone and a freezing temperature zone.
  • the low pressure storage unit 7 is located at a bottom of the preservation compartment 4, and is supported on a bottom wall of the preservation compartment 4.
  • a preservation container 6 may be provided above the low pressure storage unit 7, which preservation container has a higher humidity and is adapted for storing foods such as vegetables.
  • the low pressure storage unit 7 may be constructed separately from the cabinet 2 and then assembled in the cabinet 2. With reference to Figure 2 and Figure 3, in this embodiment, the low pressure storage unit 7 is substantially of a flat rectangular parallelepiped shape, having a width slightly smaller than the width of the preservation compartment 4, so that the low pressure storage unit 7 can be inserted into the preservation compartment 4 and drawn out of the preservation compartment 4.
  • the low pressure storage unit 7 comprises a main body 8 which is fixed in the preservation compartment 4, and a door 10 which is coupled to the main body 8 and can be pushed into and retracted out of the preservation compartment 4.
  • the main body 8 has a box shaped structure, defining a flat storage chamber 15 having a food access opening 15a.
  • the access opening 15a is preferably formed in the front end of the main body 8 to face towards users.
  • the main body 8 comprises at least one first member formed of a metal (such as sheet steel) having relatively high strength and at least one second member formed of a plastic material, the first member and the second member forming respectively walls which receive outside pressure when the interior of the storage chamber 15 is in the low pressure state.
  • the first member forms a top wall 20, a bottom wall 21 and right and left side walls 22 of the main body 8, so that a box body 11 having front and rear openings is produced.
  • the second member comprises a rear cover 23 closing the rear opening of the box body 11 , the rear cover 23 being provided with an evacuation passage connected to the evacuation device, and an evacuation valve 60 for opening and closing the evacuation passage.
  • the second member may also comprise a front jointing frame 17 fixed to the front opening of the box body 11.
  • the front jointing frame 17 may comprise a smooth adjoining surface 18 which extends substantially perpendicular to the horizontal plane and is configured for abutting with the door 10.
  • the door 10 may be provided with a ring shaped sealing element 16 (see Figure 8), so that, when the door 10 in a closed position, airtightness engagement is formed between the main body 8 and the door 10 to prevent air from entering into the storage chamber 15 through the interface between the main body 8 and the door 10.
  • the sealing element 16 may alternatively be provided on the front end of the main body 8, for example, fixed to the front jointing frame 17.
  • the storage chamber 15 When the storage chamber 15 is closed by the door 10 and the evacuation device is activated, air within the storage chamber 15 is evacuated, and the storage chamber 15 comes to the low pressure state.
  • the pressure in the storage chamber 15 is in a range between one standard atmosphere pressure (atm) and absolute vacuum, for example, having an absolute pressure lower than 690 mbar.
  • the storage chamber 15 is generally referred to as "vacuum chamber” by those skilled in the art, since air pressure inside it can be lower than the standard atmosphere pressure.
  • the door 10 is of drawer type, which can be pushed towards the main body 8 to close the access opening 15a of the storage chamber 15, and can be pulled outwards to open the storage chamber 15.
  • the backside of the door 10 is connected with a tray shaped container 12 for containing articles therein.
  • a user may push or pull the tray shaped container 12 into or out of the storage chamber 15 to get an article contained in the low pressure storage unit 7 or to put articles into the low pressure storage unit 7.
  • the door 10 and the tray shaped container 12 form a drawer unit which can be pushed into and pulled out of the main body 8.
  • a telescopic guide unit 14 may be provided between the tray shaped container 12 and the main body 8, such that the door 10 and the tray shaped container 12 can be smoothly pulled out of the main body 8 or pushed into the main body 8.
  • the low pressure storage unit 7 comprises a pair of locking mechanisms for locking the door 10 which is in the closed position with the main body 8.
  • each locking mechanism comprises a first matching portion 34 provided on the door 10 and a second matching portion 44 provided on the main body 8.
  • the door 10 is locked in the closed position.
  • the sealing element 16 between the main body 8 and the door 10 is fully deformed under a locking force created by the locking mechanism, so that airtightness between the door 10 and the main body 8 is increased.
  • the second matching portion 44 is connected to the adjoining surface 18 of the main body 8 and protrudes forwards therefrom.
  • the second matching portion 44 comprises a base 45 connected to the adjoining surface 18 and extending forwards, and a column shaped locking portion 46 provided in front of the adjoining surface 18.
  • the locking portion 46 is separated from the adjoining surface 18 by a predetermined distance and has an axis which extends transversely and is parallel to both the horizontal plane and the adjoining surface 18.
  • the locking portion 46 is located on the inner side of the base 45.
  • the locking portion 46 comprises an inner column 46a fixed to the base 45, and an outer wheel 46b surrounding the inner column 46a and being able to roll around the inner column 46a.
  • the inner column 46a may either be integrally formed with the base 45 or formed separately from the base 45 and then connected to the base 45. In a particularly simple embodiment, the inner column 46a is formed by a screw fixed to the base 45.
  • the door 10 comprises a door body 26, a brake unit 27 fixed to the door body 26, fixing members 28 for fixing the brake unit 27 to the door body 26, and a decorative cover 29 connected to the door body 26 to cover a corresponding portion of the brake unit 27.
  • the brake unit 27 comprises a handle 32 of a substantially plate shape, a cylindrical rod 33 fixed to the handle 32, and a pair of first matching portions 34 fixed opposite ends of the rod 33 respectively.
  • the rod 33 is fixed to the back side of the handle 32.
  • the handle 32 has several fixing portions 35 protruded from its back surface, the fixing portions 35 being provided on an upper portion of the handle 32.
  • Each fixing portion 35 has a cylindrical fixing hole 61 extending transversely to allow the rod 33 to extend through the fixing holes 61 so as to be connected to the handle 32.
  • the rod 33 and the handle 32 are fixed to each other, with no relative movement between them being allowed then. This can be done by screws 37 which fasten the rod 33 to the fixing portions 35.
  • Opposite ends of the rod 33 are each fixed with a corresponding first matching portion 34.
  • the first matching portion 34 has a substantially sector shaped shape, which gradually becomes larger in an outward direction.
  • a camming curve surface 34a adapted for cooperating with the locking portion 46 is formed on the free end of the first matching portion 34.
  • the camming curve surface 34a is provided as facing towards the rod 33.
  • the camming curve surface 34a comprises a leading-in curve segment 341 separated by a larger distance from the central axis X, and a locking curve segment 342 separated by a smaller distance from the central axis X.
  • a transition protrusion 343 can be formed between the leading-in curve segment 341 and the locking curve segment 342, protruding towards the rod 33.
  • the transition protrusion 343 prevents the locking portion 46 from sliding out of the locking curve segment 342. Further, when the locking portion 46 is moved to slide over the transition protrusion 343 to come onto the locking curve segment 342, a user needs to overcome a maximum resistance. Then, locking is established after the locking portion 46 comes onto the locking curve segment 343, which provides a function of informing the user that the door 10 and the main body 8 are locked together.
  • the rod 33 is provided with two ring shaped retention recesses 39 near the first matching portions 34.
  • Each of the retention recesses 39 is recessed in a radial direction from the outer periphery of the rod 33 and is adapted to be cooperated with a corresponding mechanism on the door 10 to restrict the axial movement of the rod 33 in the door 10.
  • the back side of the handle 32 may be provided with an air charging valve 25 for closing and opening an air charging passage 19 (as shown in Figures 7 and 8), the air charging passage being provided through the door body 26 for releasing the low pressure state in the storage chamber 15.
  • the air charging valve 25 is kinetically coupled with the handle 32, so that the air charging passage 19 can be opened or closed by manipulating the handle 32.
  • the door body 26 has a substantially rectangular plate shape and is preferably formed of a plastic material.
  • the door body 26 is formed with an accommodating space 30 recessed from its front surface 26a for receiving at least a portion of the brake unit 27.
  • the door body 26 is formed with a protrusion 31 having a shape corresponding to that of the accommodating space 30, for compensating a thickness loss resulted from forming the accommodating space 30 on the front side of the door body 26.
  • the accommodating space 30 is substantially T shaped, comprising a first accommodating space 30a in the central area of the door body 26 and a second accommodating space 30b extending in the width direction of the door body 26.
  • the first accommodating space 30a and the second accommodating space 30b are partly overlapped.
  • the first accommodating space 30a is adapted for receiving the handle 32 of the brake unit 27.
  • One side of the first accommodating space 30a extends towards and opens into an end surface of the door body 26, forming an opening in this end surface to allow a user to insert his or her hand into the backside of the handle 32.
  • the lower end of the first accommodating space 30a extends to the lower end surface 26b of the door body 26, to allow a user to hold the lower end of the handle 32 so as to manipulate the handle 32.
  • the lower end of the handle 32 may be separated from the lower end surface 26b of the door body 26 by a distance to facilitate a user to insert his or her hand into the back side of the handle 32.
  • the back side of the lower end edge of the handle 32 may be provided with a row of tooth shaped protrusions for facilitating a user to insert his or her hand into the back side of the handle 32 and then grasp the lower end edge to manipulate the handle 32.
  • the outer end of the air charging passage 19 is in fluid communication with the first accommodating space 30a.
  • the air charging passage 19 is tightly closed by the air charging valve 25, and when the handle 32 is in a position shown in Figure 11 a, the air charging passage 19 is opened, and outside air is allowed to flow into the storage chamber 15 through the air charging passage 19 to release the low pressure state in the storage chamber 15.
  • the air charging passage and the air charging valve may be provided independently from the handle 32.
  • a knob may be provided on the door 10.
  • the air charging passage is opened when the knob is pressed down, and then a user may manipulate the handle 32 to open the door 10.
  • the rod 33 is received in the second accommodating space 30b.
  • Right and left ends of the second accommodating space 30b are located near right and left end surfaces 26c and 26d of the door body 26 respectively, but are still separated from the right and left end surfaces 26c and 26d rather than exposed out from them.
  • the second accommodating space 30b is similarly not exposed from upper and lower end surfaces 26b and 26e of the door body 26.
  • a plurality of half-ring shaped first recesses 37, separated from each other, are provided in the second accommodating space 30b.
  • first recesses 37 are arranged in a common horizontal plane, for receiving corresponding portions of the rod 33.
  • the first recesses 37 may alternatively be provided in mounting blocks 36 arranged inside the second accommodating space 30b.
  • a half-ring shaped protrusion 40 is formed in at least one of the first recesses 37.
  • a half-ring shaped second recess 41 is formed in each fixing member 28, corresponding to the first recess 37.
  • a similar half- ring shaped retention protrusion 40' may be formed in the second recess 41 , for cooperating with the retention recess 39.
  • retention recesses of the axial retention mechanism of the rod 33 may be alternatively provided on the door body and/or the fixing member, while the rod is provided with retention protrusions.
  • Opposite ends of the door body 26 are each formed with a through slot 42 which is in communication with the second accommodating space 30b and extends through the door body 26 from front to back.
  • the first matching portion 34 is inserted through the through slot 42 and extends to the back side of the door body 26.
  • Each through slot 42 is preferably provided in a loop shaped area encircled between the ring shaped sealing element 16 and the peripheral end surfaces 26b to 26e of the door body 26, so that the airtightness between the door 10 and the main body 8 is not affected.
  • the first matching portion 34 is not exposed outside the door 10 when the door 10 is closed.
  • the fixing members 28 may be provided with a screw which is to be inserted through the fixing member 28 and engaged with the mounting block 36.
  • the handle 32 and the first matching portion 34, which are connected to the rod 33, are fixed to the door body 26.
  • the decorative cover plate 29 is fixed to the door body 26 to shield the brake unit 25, except the handle 32, from the front surface of the door 10.
  • the rod 33 is located inside the door 10 as a whole.
  • the front surface of the decorative cover plate 29 is preferably flush with the front surface 26a of the door body 26.
  • the decorative cover plate 29 may adopt a color and/or a material different from that of the door body 26.
  • the handle 32 is rotatably connected to the door 10.
  • the rod 33 inside the door body 26 is also rotated around its central axis X while driving the first matching portion 34 to rotate.
  • the rod 33 defines a rotation shaft (axis) for the handle 32 and the first matching portion 34.
  • the rod when the rod 32 is rotated, the rod also acts as a rotation shaft of the handle 32 and the first matching portion 34, with the central axis X of the rod having no displacement with respect to the door body 26.
  • the handle 32 is rotatable around the central axis X of the rod 33 between a first position and a second position.
  • a maximum angle is formed between the handle 32 and the front surface 26a of the door body 26, with a maximum distance being formed between the lower end of the handle and the front surface 26a of the door body 26, and thus the first position is also referred to as extended position.
  • a minimum angle is formed between the handle 32 and the front surface 26a of the door body 26, with a minimum distance being formed between the lower end of the handle and the front surface 26a of the door body 26, and thus the second position is also referred to as retracted position.
  • the first matching portion 34 which is kinetically coupled with the handle 32, is restricted to be able to rotate between a first extreme position and a second extreme position. When the handle 32 is in the first position, the first matching portion 34 is in the first extreme position (as shown in Figure 11a), and when the handle is in the second position, the first matching portion 34 is in the second extreme position (as shown in Figure 11 b).
  • Figure 1 1a shows the door 10 in the closed position but still in an unlocked state, now the handle 32 being in the first position.
  • the handle 32 rotates inwards around the central axis X of the rod 33.
  • the rod 33 rotates around its central axis X to drive the first matching portion 34 to rotate upwards, and the camming curve surface 34a of the first matching portion 34 gradually approaches the locking portion 46 of the second matching portion 44.
  • Figure 11 b shows that the door 10 and the main body 8 are in the locked state, now the handle 32 being in the second position.
  • the locking portion 46 comes to the locking curve segment 342 of the first matching portion 34a and closely contacts with it.
  • the air charging valve 25 inside the handle 32 abuts against the air charging passage 19 in the door body 26 to close the air charging passage 19.
  • the front surface of the handle 32 is in a vertical position substantially perpendicular to a horizontal plane, which is particularly advantageous for retracting the handle 32 into the first accommodating space 30a.
  • the handle 32 in the second position, at least a majority of the handle 32 is received in the accommodating space 30 to reduce the space occupied by the low pressure storage unit 7.
  • the handle 32 in the second position, is wholly received in the door body 26, without extending out beyond the front surface of the door 10.
  • the door 10 is provided with a second retention structure 47 for restricting the handle 32 from further rotated after it is rotated to the vertical plane (the second position), so as to prevent the handle 32 from being continuously rotated which may cause the upper end of the handle 32 to protrude out of the accommodating space 30. In this way, the door 10 may have a further smoothed appearance.
  • the second retention structure 47 is provided between the handle 32 and the door body 26. It may be formed by protrusion structures fixed to the inner side of the handle 32 and/or to the front side of the door body 26, and it is configured in the following manner: when the front surface of the handle 32 is in the vertical position, the second retention structure 47 (if it is fixed to the door body 26) just abuts against the inner side of a portion of the handle 32 which is located below the rod 33; alternatively, the second retention structure (if it is fixed to the inner side of the handle 32) just abuts against the front side of the door body 26.
  • the protrusion structures are preferably located near the inner side wall of the first accommodating space 30a to reduce the possibility of interference between them and a user's hand.
  • the second retention structure 47 may be integrally formed on the door body 26 and/or the handle 32.
  • a user may hold the lower end of the handle 32 and lift it in an up and outward direction, so that the handle 32 is rotated around the central axis X of the rod 33 and drives the rod 33 to rotate, the first matching portions 34 which is fixed to opposite ends of the rod 33 rotates downwards, and the locking portion 46 leaves the camming curve surface 34a of the first matching portion 34 gradually.
  • the air charging valve 25 releases it closure to the air charging passage 19, and outside air enters into the storage chamber 15 through the air charging passage 19 to equalize its inner pressure with outside pressure. Then, the user may hold the handle 32 and pull it forwards, by means of which, the door 10 is opened.
  • the door 10 may be provided with a first retention structure 48 for restricting the handle 32 from further rotating outwards after it is rotated to the first position.
  • a first retention structure 48 for restricting the handle 32 from further rotating outwards after it is rotated to the first position.
  • an angle formed between the handle 32 and a vertical plane is less than 90 degrees.
  • the first retention structure 48 may be configured in the following manner: when the handle 32 is rotated outwards through a maximum angle to the first position, the first retention structure 48 abuts against the inner side of a portion of the handle 32 which is located above the rod 33.
  • the first retention structure 48 is arranged near the upper inner wall of the first accommodating space 30a but is still separated from it by a distance, so that, when the handle 32 is rotated to the first position, the inner side of the portion of the handle 32 which is located above the rod 33 abuts against the first retention structure 48, so that the handle 32 is restricted from being further rotated.
  • the first retention structure 48 may be formed by a protrusion structure inside the first accommodating space 30a.
  • the protrusion structure may be integrally formed to the inner wall of the back side of the first accommodating space 30a.
  • the forward protruding length of the handle 32 can be limited within a certain range by limiting the outward rotating angle of the handle 32 within a certain range, so that a distance between the low pressure storage unit 7 and the inner side of the appliance door of the refrigeration appliance 1 can be reduced, and the space utilization ratio of the refrigeration appliance 1 can be increased.
  • the door 10 comprises a holding device 49 holding the first matching portion 34 in a safe position after the door 10 is released from the locked state.
  • This safe position is selected in the following manner: during the closing procedure of the door 10, the first matching portion 34 which is moving forwards is in a safe position where it cannot collide with the locking portion 46.
  • the first matching portion 34 is held in the safe position by the holding device 49 which holds the handle 32 in a safe angle.
  • the safe angle may be equal to an angle formed between the handle 32 which is in the first position and a vertical plane, also called maximum outward rotation angle, or slightly smaller than the maximum outward rotation angle, or in other words, the safe position of the first matching portion 34 may be its first extreme position or near to the first extreme position. It can be understood that, when the handle 32 is in the first position / extended position, the front end of the first matching portion 34 does not overlap the locking portion 46 in the front-back direction.
  • the holding device 49 comprises a spring.
  • the holding device 49 is in the form of a torsion spring having a first end 49a fixed to the door body 26 or a member which is fixed to the door body 26 without any movability (for example, the fixing member 28) and a second end 49b fixed to the handle 32.
  • the torsion spring applies an outward torque to the handle 32 so that the handle 32 has power to continue its outward rotation.
  • the handle 32 is restricted by the first retention structure 48 from further rotation, and thus it is reliably kept in the first position.
  • holding device 49 may be configured to provide an inward torque to the handle 32 which is in the second position to prevent the lower end of the handle 32 from kicking out, and thus reliably keep the handle 32 in a vertical position.
  • the handle 32 is in an equilibrium state when it is in an equilibrium position between the first position and the second position.
  • the holding device 49 provides torque to the handle 32 to rotate it outwards until the handle 32 reaches the first position where it is restricted from further rotation.
  • the holding device 49 provides torque to the handle 32 to rotate it inwards until the handle 32 reaches the second position where it is restricted from further rotation.
  • the above embodiment describes a condition where the handle 32 is held in either of the first position and the second position by means of a single torsion spring.
  • the present invention is not limited to this.
  • holding devices which are separate from each other, are provided for holding the handle 32 in the first position and in the second position respectively.
  • the drawer unit wobbles within a wobbling range when the drawer unit which carries the door 10 is being pulled out of the main body 8 or pushed into the main body 8, because there is always a gap between the container 12 and the main body 8.
  • the wobbling range is related with the gap between the drawer unit and the main body 8, and is highly affected by the guide units 14 (if being provided).
  • the low pressure storage unit 7 comprises a positioning mechanism for locating the door 10 in a fixed position or in a fixed range which is smaller than the above wobbling range when the door 10 is being closed, so that precise alignment between the door 10 and the main body 8 can be achieved when the door 10 in the closed position.
  • the positioning mechanism comprises a first positioning portion 51 provided on the door 10 and a second positioning portion 52 provided on the main body 8 and cooperating with the first positioning portion 51.
  • the first positioning portion 51 is arranged within the door body 26, without extending out beyond the end surfaces 26b, 26c, 26d and 26e of the door body 26.
  • the first positioning portion 51 is arranged outside the sealing element 16 and near the through slot 42.
  • the second positioning portion 52 is arranged in front of the adjoining surface 18, protruding forwards from the adjoining surface 18 but not extending out beyond the outer edge of the front jointing frame 17.
  • the second positioning portion 52 is received within the door 10 and is located in a loop shaped area encircled between the sealing element 16 and the periphery end surfaced 26b to 26e of the door 10.
  • the first positioning portion 51 and the second positioning portion 52 are provided in a manner that, when the door 10 is closed, neither of them is exposed out from the outer surface of the low pressure storage unit 7.
  • the appearance of the appliance is improved, and meanwhile, it does not need to increase the distance between the low pressure storage unit 7 and the inner shell 2b for providing the positioning mechanism when the low pressure storage unit 7 is mounted in the preservation compartment 4.
  • the first positioning portion 51 and the second positioning portion 52 are preferably provided in a form fitting manner.
  • the first positioning portion 51 is formed by an insertion slot in the door 10.
  • the insertion slot is open at the side facing towards the main body 8 to allow the insertion of the second positioning portion 52.
  • the second positioning portion 52 is inserted into the first positioning portion 51 , with an outer surface of the second positioning portion 52 closely abutting against a corresponding inner surface of the first positioning portion 51 , so as to restrict the transverse movement and longitudinal movements of the door 10. In this way, the door 10 is located precisely. Since the second positioning portion 52 protrudes forwards from the adjoining surface
  • the positioning mechanism may also guide the movement of the door 10, which helps to reduce the wobbling of the door 10 and the tray type container 12 during the closing procedure to some extend.
  • the insertion slot of the first positioning portion 51 may be formed as a wedge shaped slot which is largest at its opening portion and reduces in dimension in a back to front direction.
  • the insertion part of the second positioning portion 52 has also a wedge shape which tapers in a back to front direction and is smallest at its front end. In this way, it is very easy to insert the second positioning portion 52 into the first positioning portion 51 at the beginning of insertion.
  • the gaps between the first and second positioning portions become minimum (for example, 1 to 2 millimeters), so that the door 10 is located within a fixed range which is substantially smaller than the above maximum wobbling range during the closing procedure of the drawer unit (the maximum wobbling range being existed before the first and second positioning portions 51 and 52 are engaged with each other).
  • the first positioning portion 51 and the second positioning portion 52 may closely abut against each other before the door 10 reaches the closed position, so that the door 10 is located in a fixed position when it is closed.
  • the second positioning portion 52 is formed directly by the base 45 of the second matching portion 44. It should be understood that, in other embodiments, it is also possible to form the second positioning portion 52 by an insertion part which is separate from the second matching portion 44.
  • the second positioning portion 52 by an insertion slot
  • the first positioning portion 51 is formed by an insertion structure which is adapted to be inserted into the second positioning portion 52.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)

Abstract

L'invention concerne une unité de stockage (7) comprenant: un corps principal (8) qui délimite un compartiment de conservation (15) dont une partie ouverture (15a) permet d'y placer ou d'en retirer des articles; une porte (10) pour ouvrir ou fermer sélectivement la partie ouverture (15a); un mécanisme de fixation (34, 44) pour fixer la porte (10) au corps principal (8) lorsque la porte (10) est fermée. Le mécanisme de fixation (34, 44) comprend une première partie d'accouplement (34) située sur la porte (10) et une seconde partie d'accouplement (44) située sur le corps principal (8); et une poignée (32) montée en association avec la première partie d'accouplement (34). Le mécanisme de fixation se caractérise en ce qu'il comprend également une tige (33) reliant la poignée (32) et la première partie d'accouplement (34). La tige (33) est entraînée en rotation par la poignée (32) de sorte que son axe central (X) reste fixe par rapport à la porte (10), et la première partie d'accouplement (34) est entraînée en mouvement par la tige (33).
EP11733679.2A 2010-07-22 2011-07-15 Unité de stockage et appareil de réfrigération comprenant l'unité de conservation Withdrawn EP2596310A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010233791.4A CN102338538B (zh) 2010-07-22 2010-07-22 储藏单元以及具有储藏单元的制冷器具
PCT/EP2011/062107 WO2012010502A2 (fr) 2010-07-22 2011-07-15 Unité de stockage et appareil de réfrigération comprenant l'unité de conservation

Publications (1)

Publication Number Publication Date
EP2596310A2 true EP2596310A2 (fr) 2013-05-29

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Application Number Title Priority Date Filing Date
EP11733679.2A Withdrawn EP2596310A2 (fr) 2010-07-22 2011-07-15 Unité de stockage et appareil de réfrigération comprenant l'unité de conservation

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EP (1) EP2596310A2 (fr)
CN (1) CN102338538B (fr)
WO (1) WO2012010502A2 (fr)

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CN103423949B (zh) * 2012-05-16 2017-06-13 博西华电器（江苏）有限公司 低压容器及包括该低压容器的冰箱
CN103423952B (zh) * 2012-05-16 2017-07-14 博西华电器（江苏）有限公司 低压容器及包括该低压容器的冰箱
EP2784888B1 (fr) * 2013-03-26 2018-10-31 ABB Schweiz AG Boîte d'installation électrique
CN105953517B (zh) * 2016-05-23 2018-05-29 青岛海尔股份有限公司 冰箱及其储物装置
CN106642956B (zh) * 2016-11-11 2019-07-02 青岛海尔股份有限公司 冰箱及用于冰箱的储物盒
CN106595168B (zh) * 2016-11-11 2019-03-12 青岛海尔股份有限公司 冰箱及冰箱储物盒
CN106642909B (zh) * 2016-11-11 2019-08-27 青岛海尔股份有限公司 冰箱及冰箱储物盒
CN106610163B (zh) * 2016-11-11 2019-05-03 青岛海尔股份有限公司 冰箱及冰箱储物盒
CN106766636B (zh) * 2016-12-30 2018-05-15 青岛海尔股份有限公司 抽屉组件及具有该抽屉组件的冰箱
WO2021114956A1 (fr) * 2019-12-12 2021-06-17 海信（山东）冰箱有限公司 Réfrigérateur
WO2021114962A1 (fr) * 2019-12-12 2021-06-17 海信（山东）冰箱有限公司 Réfrigérateur
CN111473577A (zh) * 2020-04-17 2020-07-31 海信（山东）冰箱有限公司 冰箱
CN113639506B (zh) * 2020-05-11 2022-05-06 海信（山东）冰箱有限公司 冰箱
CN114061203A (zh) * 2020-07-31 2022-02-18 海信（山东）冰箱有限公司 一种冰箱

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Also Published As

Publication number Publication date
CN102338538A (zh) 2012-02-01
WO2012010502A2 (fr) 2012-01-26
CN102338538B (zh) 2015-08-26
WO2012010502A3 (fr) 2012-07-19

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