WO2021227421A1 - 冰箱 - Google Patents

冰箱 Download PDF

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Publication number
WO2021227421A1
WO2021227421A1 PCT/CN2020/129904 CN2020129904W WO2021227421A1 WO 2021227421 A1 WO2021227421 A1 WO 2021227421A1 CN 2020129904 W CN2020129904 W CN 2020129904W WO 2021227421 A1 WO2021227421 A1 WO 2021227421A1
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WO
WIPO (PCT)
Prior art keywords
door
low
storage unit
handle
pressure storage
Prior art date
Application number
PCT/CN2020/129904
Other languages
English (en)
French (fr)
Inventor
张秋菊
张树栋
申乃雨
王仁华
许锦潮
Original Assignee
海信（山东）冰箱有限公司
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 海信（山东）冰箱有限公司 filed Critical 海信（山东）冰箱有限公司
Publication of WO2021227421A1 publication Critical patent/WO2021227421A1/zh

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    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • 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
    • 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
    • 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
    • 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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • 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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/003—Arrangement or mounting of control or safety devices for movable devices
    • 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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control devices
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/02—Details of doors or covers not otherwise covered
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/02—Details of doors or covers not otherwise covered
    • F25D2323/024—Door hinges

Definitions

  • the present disclosure belongs to the technical field of refrigerators, and particularly relates to a refrigerator.
  • refrigerators As an indispensable electrical product in home life, refrigerators occupy an important share of the market. With the improvement of consumers’ requirements for the quality of fresh foods, the requirements for refrigerators are also getting higher and higher.
  • the refrigerators are required to have higher configurations and more powerful functions. The long storage period ensures the freshness of the ingredients and prevents the loss of nutrients.
  • a vacuum drawer In order to better store food, a vacuum drawer has been developed in the refrigerator, and the vacuum drawer is evacuated through a vacuum device.
  • the main function of vacuuming is to deoxygenate the vacuum drawer to prevent food from spoiling.
  • the vacuum drawer of the refrigerator with vacuuming function requires the user to manually lock the vacuum drawer.
  • Some embodiments of the present disclosure provide a refrigerator, including:
  • a box body which defines a heat-insulated storage room enclosed by an inner liner; the box body includes a box door;
  • a low-pressure storage unit housed in the storage room, can be evacuated to form a pressure lower than the atmospheric pressure outside the box to facilitate the preservation of food;
  • An air extraction device which is connected to the low-pressure storage unit, and is used to extract air from the low-pressure storage unit;
  • the turning beam unit is arranged on the box door and located in the front area of the low-pressure storage unit; the turning beam unit includes a free end parallel to the turning axis M, and the free end rotates around the turning axis M to achieve turning The beam unit switches between the state perpendicular to the box door and the state parallel to the box door;
  • the low-pressure storage unit includes:
  • the shell defines a storage room with a pick-and-place opening for picking and placing items
  • the door is used to open or close the access port
  • the first matching portion is provided at opposite ends of the housing
  • the second matching part is rotatably provided at both ends of the door body, and is used to cooperate with the first matching part on the corresponding side to realize the locking and unlocking of the door body;
  • the maximum displacement of the free end of the turning beam unit into the storage room is denoted as W; when the door and the housing are in the closed position but not locked, The distance between the foremost end of the handle and the front end surface P of the liner is denoted as L; L ⁇ W;
  • the turning beam unit When the door is closed, the turning beam unit turns around its turning axis M, and applies a force toward the low-pressure storage unit to the handle that is not locked, and the handle drives the second The mating part rotates to make the second mating part cooperate with the first mating part to realize the locking of the door body and the housing.
  • Figure 1 is a schematic diagram of the overall structure of a refrigerator provided by some embodiments of the present disclosure
  • FIG. 2 is an exploded schematic diagram of a low-pressure storage unit of a refrigerator provided by some embodiments of the present disclosure
  • Fig. 3 is a perspective view of a housing of a refrigerator provided by some embodiments of the present disclosure
  • FIG. 4 is a perspective view from another angle of the housing of the refrigerator provided by some embodiments of the present disclosure.
  • Fig. 5 is an exploded schematic diagram of a door of a refrigerator provided by some embodiments of the present disclosure
  • FIG. 6 is a schematic structural diagram of the low-pressure storage unit when the door and the shell of the refrigerator are in the closed position but not locked according to some embodiments of the present disclosure
  • FIG. 7 is a schematic partial cross-sectional view of the low-pressure storage unit when the door and the shell of the refrigerator are in the closed position but not locked according to some embodiments of the present disclosure
  • FIG. 8 is a schematic partial cross-sectional view of another position of the low-pressure storage unit when the door and the shell of the refrigerator are in the closed position but not locked according to some embodiments of the present disclosure
  • FIG. 9 is a schematic structural diagram of the low-pressure storage unit when the door and the shell of the refrigerator are locked according to some embodiments of the present disclosure
  • FIG. 10 is a schematic partial cross-sectional view of the low-pressure storage unit when the door and the shell of the refrigerator are locked according to some embodiments of the present disclosure
  • FIG. 11 is a schematic structural diagram of the low-pressure storage unit when the door and the casing of the refrigerator are unlocked and in a separated state according to some embodiments of the present disclosure
  • FIG. 12 is a partial structural diagram of a refrigerator provided by some embodiments of the present disclosure when the refrigerator door is completely closed;
  • FIG. 13 is a schematic diagram 1 of the relative position of the handle and the turning beam unit when the refrigerator door of the refrigerator provided by some embodiments of the present disclosure is completely closed;
  • FIG. 14 is a second schematic diagram of the relative position of the handle and the turning beam unit when the refrigerator door of the refrigerator provided by some embodiments of the present disclosure is completely closed;
  • 15 is a schematic diagram of the relative position of the turning beam unit and the guide groove when the refrigerating box door of the refrigerator is completely closed according to some embodiments of the present disclosure
  • 16 is a schematic diagram of the assembly structure of the guide groove and the inner liner of the refrigerator provided by some embodiments of the present disclosure
  • FIG. 17 is a partial structural diagram of the refrigerator door of the refrigerator provided by some embodiments of the present disclosure during the closing process
  • 18 is the first schematic diagram of the handle contacting the turning beam unit during the closing process of the refrigerator door of the refrigerator provided by some embodiments of the present disclosure
  • 19 is a second schematic diagram when the handle of the freezer door of the refrigerator according to some embodiments of the present disclosure is in contact with the turning beam unit during the closing process;
  • 20 is a schematic diagram of the relative positions of the turning beam unit and the guide groove during the closing process of the freezer door of the refrigerator provided by some embodiments of the present disclosure
  • FIG. 21 is a schematic diagram of an exploded structure of a flip beam unit of a refrigerator provided by some embodiments of the present disclosure.
  • Fig. 1 is a schematic diagram of the overall structure of a refrigerator provided by some embodiments of the present disclosure.
  • a refrigerator 1 includes a heat-insulating box body 2, and the box body 2 includes an outer shell 2a, an inner liner 2b, and a Thermal insulation layer between (not shown).
  • the box 2 defines a plurality of insulated storage rooms to store food and other items.
  • these storage rooms are respectively the refrigerating compartment 12 at the upper part and the freezing compartment at the bottom.
  • the storage rooms can be closed by their corresponding doors.
  • the refrigerating compartment 12 is provided with a double-opening refrigerator door
  • the freezing compartment is provided with a double-opening freezer door.
  • present disclosure should not be limited to the specific distribution form of the storage compartments of the refrigerator 1, and the present disclosure may also be applied to other forms of refrigerators 1, such as refrigerators 1 with drawer-type doors.
  • the refrigerator 1 has an evaporative refrigeration system forming a closed loop.
  • the refrigeration system includes at least a compressor (not shown), a condenser (not shown), a throttling device (not shown), and an evaporator (not shown). Since such a refrigeration system is a well-known technology in the prior art, further description thereof is omitted. Of course, the refrigerator 1 can also use other forms of refrigeration systems (such as absorption refrigeration systems, thermoelectric refrigeration systems).
  • the refrigerator 1 is provided with a low-pressure storage unit 15 that can be maintained in a low-pressure state, and an air extraction device for extracting gas from the low-pressure storage unit 15.
  • the air extraction device may include a vacuum pump and a pipeline connected between the vacuum pump and the low-pressure storage unit 15.
  • the refrigerator 1 is provided with a control unit that controls the air extraction device to vacuum the low-pressure storage unit 15 to realize automatic control of vacuuming the low-pressure storage unit 15.
  • the low-pressure storage unit 15 is provided in the refrigerating compartment 12. It should be understood that in other embodiments, the low-pressure storage unit 15 may also be arranged in other storage rooms, for example, a temperature changing room whose temperature range can be switched between a refrigerating temperature zone and a freezing temperature zone.
  • the low-pressure storage unit 15 is located at the bottom of the refrigerating compartment 12 and is supported on the bottom wall of the refrigerating compartment 12.
  • An adjacent position of the low-pressure storage unit 15 may be provided with a fresh-keeping container 44 suitable for storing vegetables and other foods; the low-pressure storage unit 15 and the fresh-keeping container 44 are arranged side by side at the bottom of the refrigerating compartment 12.
  • the low-pressure storage unit 15 may be constructed independently of the box body 2 and then assembled in the box body 2.
  • 2 is an exploded schematic view of a low-pressure storage unit of a refrigerator provided by some embodiments of the present disclosure
  • FIG. 3 is a perspective view of a refrigerator housing provided by some embodiments of the present disclosure
  • FIG. 4 is a refrigerator housing provided by some embodiments of the present disclosure Perspective view from another angle.
  • the low-pressure storage unit 15 has a substantially flat rectangular parallelepiped shape, and the sum of the width of the low-pressure storage unit 15 and the width of the fresh-keeping container 44 is slightly smaller than the width of the refrigerating compartment 12, thereby The bottom space of the refrigerating compartment 12 is effectively allocated, so that the fresh-keeping container 44 and the low-pressure storage unit 15 can be inserted into the refrigerating compartment 12 or drawn out of the refrigerating compartment 12.
  • the low-pressure storage unit 15 includes a casing 4 fixed in the refrigerating compartment 12 and a door 5 connected to the casing 4 and capable of being pushed into or out of the refrigerating compartment 12.
  • the housing 4 has a box-shaped structure, which defines a flat low-pressure storage chamber 14 with a food access port 14a.
  • the access port 14a is located at the front end of the housing 4 facing the user.
  • the outer side of the box wall of the shell 4 is provided with a grid-like reinforcing rib 40 to increase the strength of the box wall of the shell 4 and prevent the shell 4 from being deformed due to the pressure difference between the inside and outside after being evacuated.
  • the housing 4 includes an upper housing 41 and a lower housing 42 connected to form the low-pressure storage chamber 14.
  • the upper housing 41 and the lower housing 42 are integrated by ultrasonic welding; specifically, the lower housing 42 includes a bottom wall 42a and The first lower side wall 42c, the lower rear wall 42b, the second lower side wall 42d connected to the edge of the bottom wall 42a, and the front end wall 42e that is located at the front end of the lower housing 42 and is formed with the access port 14a;
  • the bottom wall 42a of the lower casing is the bottom wall of the low-pressure storage unit 15.
  • the front end wall 42e may have a flat butting surface 43 that is substantially perpendicular to the horizontal plane and used for butting with the door body 5.
  • the upper casing 41 includes a top wall 41a, an upper rear wall 41b, a first upper side wall 41c, and a second upper side wall 41d which are sequentially connected to the edge of the top wall 41a; the first upper side wall 41c of the upper casing 41 and The distance between the lower wall surface of the second upper side wall 41d and the top wall 41a linearly decreases from back to front, and decreases to 0 at the front edge of the top wall 41a. That is, the projections of the first upper side wall 41c and the second upper side wall 41d on a plane perpendicular to the top surface are triangular.
  • the upper rear wall 41b is matched with the lower rear wall 42b
  • the first lower side wall 42c is matched with the first upper side wall 41c
  • the second lower side wall 42d is matched with the second upper side wall 41d
  • the front end part is matched with the front end wall 42e of the lower casing 42 and the above opposite positions are welded and fixed by ultrasonic welding, so that the upper casing 41 and the lower casing 42 are fixedly connected to form the low-pressure storage chamber 14.
  • the above ultrasonic welding effectively improves the connection strength between the upper casing 41 and the lower casing 42 and ensures the airtightness of the whole casing 4.
  • the access opening 14a of the housing 4 is formed on the front end wall 42e of the lower housing 42, so that the access opening 14a of the housing 4 is integrated, and the airtightness of the housing 4 is effectively ensured. Furthermore, the distance between the lower wall surface of the first upper side wall 41c and the second upper side wall 41d and the top wall 41a decreases linearly from back to front, and decreases to 0 at the front edge of the top wall 41a. Therefore, the number of mating surfaces of the upper shell 41 and the lower shell 42 is reduced, and the overall airtightness of the shell 4 is improved, especially the airtightness of the shell 4 at the access port 14a.
  • the housing 4 is configured as a separate structure of the upper housing 41 and the lower housing 42, which facilitates the processing of the grid-shaped reinforcing ribs 40.
  • the door body 5 can be provided with a ring-shaped sealing element 16 to form an airtight joint between the housing 4 and the door body 5 when the door body 5 is in the closed position, and prevent air from flowing from the joint between the housing 4 and the door body 5. Enter the low-pressure storage room 14.
  • the sealing element 16 may also be arranged at the front end of the housing 4, for example connected to the front end wall 42e.
  • the low-pressure storage chamber 14 When the low-pressure storage chamber 14 is closed by the door 5 and the air extraction device is activated, the gas in the low-pressure storage chamber 14 is drawn away, and the low-pressure storage chamber 14 is in a low-pressure state.
  • the pressure in the low-pressure storage chamber 14 is between a standard atmospheric pressure and an absolute vacuum. Since the air pressure in the low-pressure storage chamber 14 is lower than the standard atmospheric pressure, those skilled in the art also commonly call it a "vacuum chamber".
  • the door body 5 is a drawer type door, and the door body 5 can be pushed toward the housing 4 to close the access opening 14a of the low-pressure storage compartment 14 or pulled out to open the low-pressure storage compartment 14.
  • a tray-shaped storage container 54 is connected to the rear side of the door body 5 for storing articles. The user obtains the articles located in the low-pressure storage unit 15 or stores the articles in the low-pressure storage unit 15 by pushing or pulling the storage container 54 into or out of the low-pressure storage room 14.
  • the door body 5 and the storage container 54 together constitute a drawer unit that can be pushed into and pulled out of the housing 4.
  • a retractable guide rail unit 17 can be arranged between the storage container 54 and the casing 4 so that the door 5 and the storage container 54 can be smoothly pulled out of the casing 4 or pushed into the casing 4.
  • the low-pressure storage unit 15 includes a pair of locking mechanisms for locking the door body 5 and the housing 4 in the closed position.
  • each locking mechanism includes a first mating portion 6 provided on the housing 4 and rotatably provided at both ends of the door body 5 around the rotation axis X for contacting the corresponding side A mating part 6 cooperates with a second mating part 7 that realizes the locking and unlocking of the door body 5.
  • the second mating portion 7 and the first mating portion 6 the door body 5 is locked in the closed position, and the sealing element 16 between the housing 4 and the door body 5 is squeezed by the locking force generated by the locking mechanism. It is fully deformed, and the airtightness between the door body 5 and the housing 4 is improved.
  • the first lower side wall 42c and the second lower side wall 42d of the housing 4 near the access port 14a are provided with a lock accommodating portion 61 and a first matching portion 6 located in the lock accommodating portion 61; the housing 4
  • the second enclosure 60b The first enclosure 60a and the second enclosure 60b are connected to form a lock receiving portion 61.
  • the lock accommodating portion 61 is formed with a passage opening 64 at the foremost end of the housing 4, and the passage opening 64 is used for inserting or extracting the second mating portion 7.
  • the end surfaces of the first enclosure panel 60a and the second enclosure panel 60b away from the box wall of the housing 4 are the same as the end surface of the reinforcing rib 40 away from the box wall of the housing 4.
  • the end surface of the first matching portion 6 away from the box wall of the housing 4 and the end surface of the reinforcing rib 40 away from the box wall of the housing 4 are the same end surface.
  • the first mating portion 6 includes a locking portion 62; in the lock accommodating portion 61, the locking portion 62 is fixed on the first enclosure 60a; the locking portion 62 includes a locking wall 62a perpendicular to the first enclosure 60a and a guide wall arranged obliquely 62b; one end of the guide wall 62b is connected to the end of the locking wall 62a away from the first enclosure 60a, and the other end is connected to the end of the first enclosure 60a close to the access opening 14a.
  • the upper part of the lock accommodating portion 61 on at least one side of the housing 4 is provided with a position detection device that is electrically connected to the air extraction device and is used to cooperate with the second matching portion 7 to detect the locked and unlocked state of the door body 5.
  • the position detection device includes a travel switch 63 fixedly mounted on the housing, a travel push rod 63a slidably connected to the housing; the travel switch 63 has a trigger part; one end of the travel push rod 63a is matched with the trigger part, and the other end is connected with the The two mating parts 7 cooperate; when the second mating part 7 slides along the locking wall 62a, the stroke push rod 63a is pushed to move, thereby triggering the stroke switch 63.
  • the first enclosure 60a is provided with openings 65 that are separated from the guide wall 62b on both sides of the locking wall 62a; the openings 65 are arranged adjacent to the locking wall 62a.
  • the stroke push rod 63a of the stroke switch 63 extends into the lock accommodating portion 61 through the opening 65, and is located adjacent to the locking wall 62a.
  • FIG. 5 is an exploded schematic view of the door of a refrigerator provided by some embodiments of the present disclosure
  • FIG. 6 is a schematic structural view of the low-pressure storage unit when the door and housing of the refrigerator provided by some embodiments of the present disclosure are in the closed position but not locked
  • 7 is a schematic partial cross-sectional view of the low-pressure storage unit when the door and housing of the refrigerator provided by some embodiments of the present disclosure are in a closed position but not locked
  • FIG. 8 is a schematic partial cross-sectional view of the door and the refrigerator provided by some embodiments of the present disclosure A schematic partial cross-sectional view of another position of the low-pressure storage unit when the casing is in the closed position but not locked
  • FIG. 6 is a schematic structural view of the low-pressure storage unit when the door and housing of the refrigerator provided by some embodiments of the present disclosure are in the closed position but not locked
  • 7 is a schematic partial cross-sectional view of the low-pressure storage unit when the door and housing of the refrigerator provided by some embodiments of the present disclosure
  • a decorative cover 8 is connected to the door body 5.
  • Two opposite ends of the door body 5 are provided with connecting pieces 83, and the second matching portion 7 is rotatably arranged on the connecting pieces 83.
  • the second matching portion 7 rotates around its rotation axis X and drives the handle 81 fixed thereto to rotate.
  • Two ends of the handle 81 are respectively fixed with a second matching portion 7.
  • the second mating portion 7 is fixed to the corresponding end of the handle 81, it is fixed on the handle 81 so that it cannot move relative to the handle 81 by a fixing device such as a screw, so that when the handle 81 rotates and moves, the second The fitting portion 7 also rotates around the rotation axis X.
  • the second mating portion 7 includes a locking plate, which can rotate around the rotation axis X, the axis of the rotation axis X is arranged in the horizontal direction and has a set distance from the handle 81, and the locking plate faces the side of the housing 4
  • One side of the wall is provided with a protrusion 72.
  • the locking plate is in the shape of a flat plate, which includes a first slat 71a, a second slat 71b, and a third slat 71c that are connected end to end in sequence.
  • the strip 71a is located on the same side of the third strip 71c and has an acute angle between the fourth strip 71d and the first strip 71a.
  • the middle position of the second slat 71b is rotatably fixed on the connecting piece 83 at the end of the door body 5; the bump 72 is provided at the connection between the second slat 71b and the third slat 71c.
  • the end of the fourth slat 71d away from the third slat 71c is fixed to the corresponding end of the handle 81.
  • the front side of the door body 5 may be provided with an inflation passage 18 (as shown in FIG. 5) arranged on the door body 5 to communicate with the inner and outer sides of the low-pressure storage unit 15 (as shown in FIG. 5), and used to close or open the inflation passage 18's pressure relief device.
  • the pressure relief device includes a rod body 20 linked with the second matching portion 7, a rotating plate 59 fixedly connected to the rod body 20, and a pressure relief member 19 fixed on the rotating plate 59 for closing or opening the inflation channel 18.
  • the two ends of the rod body 20 are respectively fixed to the locking plate on the corresponding side, and the rod body 20 and the protrusion 72 are respectively located on both sides of the rotation axis X; the rotation axis of the rotation plate 59 coincides with the rotation axis X of the second matching part;
  • the matching part 7 rotates around the rotation axis X driven by the handle 81, it drives the rod body 20 and the rotating plate 59 to rotate coaxially, and the pressure relief member 19 closes the inflation channel 18.
  • both ends of the rod body 20 penetrate the decorative cover 8, and the first slat 71 a of the second matching portion 7 and the corresponding end of the rod body 20 are fixed in a relatively non-movable manner.
  • Both sides of the decorative cover 8 are provided with escape holes 39 that are consistent with the rotational movement track of the rod body 20, and there is a gap between the door body 5 and the decorative cover 8 for the rod body 20 to rotate.
  • the door body 5 has a receiving cavity 52 recessed rearward from its front surface 5a for receiving at least a part of the pressure relief device.
  • the inflatable channel 18 is provided on the cavity wall of the receiving cavity 52 away from the decorative cover 8 and communicates with the low-pressure storage room 14 and the receiving cavity 52;
  • the receiving cavity 52 is provided with a convex column 53 with the rotation axis X as the central axis; one end of the rotating plate 59 It is fixed to the rod body 20 and the other end is rotatably fixed in the receiving cavity 52 around the protruding column 53;
  • the pressure relief member 19 is arranged inside the rotating plate 59; and the rotating plate 59 is arranged between the cavity wall of the receiving cavity 52 away from the decorative cover 8
  • the torsion spring can limit the limit position of the handle 81 to rotate upward and forward, which can prevent the handle 81 from continuing to rotate and cause the handle 81 to When the upper end approaches the front surface 5 a of the door body 5, the user's hand is squeezed by the handle 81 and the door body 5.
  • the end of the rotating plate 59 is provided with a fixed channel with a polygonal cross-section for mounting the rod 20.
  • the cross-sectional shape of the rod 20 is consistent with the cross-sectional shape of the fixed channel.
  • the polygonal configuration of the cross-section makes the rod 20 and the rotating plate 59 No relative rotational movement is allowed.
  • the handle 81 when the door body 5 is in the closed position but not yet locked, the handle 81 is in the first position.
  • the handle 81 rotates inwardly around the rotation axis X of the second mating part 7, while the handle 81 drives the second mating part 7 and the rod body 20 to rotate inwardly, and the second mating part 7
  • the protrusion 72 gradually approaches the side of the locking portion 62 away from the access port 14a, and at the same time gradually approaches the stroke push rod 63a of the stroke switch 63; the rod body 20 drives the rotating plate 59 to rotate inward, and the rotating plate 59 drives the pressure relief member 19 to gradually approach the inflation Channel 18.
  • the door body 5 and the housing 4 are in a locked state, and the handle 81 is in the second position at this time.
  • the handle 81 is rotated to the second position, the second mating part 7 rotates into the lock accommodating part 61, the protrusion 72 on the second mating part 7 moves to an adjacent position on the rear side of the locking wall 62a, and pushes the stroke push rod 63a moves up, triggers the travel switch 63, the travel switch 63 sends a control signal for closing the door to the control unit, and the control unit controls the air extraction device to start pumping air according to the control signal; at this time, the pressure relief member 19 is in close contact with the inflation channel 18 to seal The air-filling channel 18 is blocked, and the low-pressure storage chamber 14 forms a closed space.
  • the above arrangement of the first mating portion 6, the second mating portion 7, and the travel switch 63 electrically connected to the air extraction device can timely monitor the locking state of the door 5 and the housing 4, so that the door 5 and the housing 4 can be locked in a timely manner.
  • a vacuum signal is sent to the air extraction device in time to ensure the vacuum of the low-pressure storage unit 15 and ensure the freshness of the food.
  • the projection 72 moves down along the guide wall 62b, and drives the second matching part 7 to rotate downward about the rotation axis X; the projection 72 moves downward Gradually approach the connection between the guide wall 62b and the locking wall 62a; continue to push the door body 5 to move to the housing 4, the protrusion 72 moves to the adjacent position behind the locking wall 62a, and the door body 5 is locked with the housing 4;
  • the pressing member 19 is in close contact with the inflation channel 18 to block the inflation channel 18.
  • the decorative cover 8 on the front side of the door body 5 is directly pushed to close the door without the handle 81, which is convenient and quick, and reduces the user's effort to place the force point on the door handle 81; at the same time, the guide Under the action of the wall 62b, the locking process is smooth and stable, avoiding collisions.
  • the door body 5 and the housing 4 are in a locked state.
  • the user can hold the lower end of the handle 81 and lift it upwards.
  • the handle 81 rotates around the rotation axis X and is fixed on the second connecting piece 83
  • the fitting part 7 rotates upward.
  • the rod body 20 rotates upwards and drives the rotating plate 59 to rotate upwards around the rotation axis X.
  • the pressure relief member 19 also releases the sealing of the inflation channel 18, and the external air enters the low-pressure storage chamber 14 through the inflation channel 18 to balance the internal and external pressures. . After that, the user can hold the handle 81 and pull it forward to open the door 5.
  • the second matching portion 7 and the first matching portion 6 are locked, the structure is compact, and the cooperation is stable.
  • the combination of the second mating portion 7 and the first mating portion 6 in the locked position provides a locking force between the door body 5 and the housing 4, so that the sealing element 16 is fully deformed, thereby improving the door body 5 and the housing 4 Air tightness between.
  • the inflation channel 18 When the handle 81 is in the position shown in FIGS. 9 and 10, the inflation channel 18 is tightly closed by the pressure relief member 19; when the handle 81 is in the position shown in FIGS. 6-8, the inflation channel 18 has been opened, External air can enter the low-pressure storage chamber 14 through the inflation channel 18 to release the low-pressure state of the low-pressure storage chamber 14.
  • the inflation channel 18 and the pressure relief member 19 may also be provided in isolation from the handle 81.
  • a button is provided on the door body 5. By pressing the button, the inflation channel 18 is opened, and then the user operates the handle 81 to open the door body 5.
  • the area of the door body 5 near its lower end surface 5b is recessed from its front surface 5a to form a receiving space 82 for accommodating the handle 81; in this embodiment, the lower end of the receiving space 82 extends to the lower end surface 5b of the door body 5, The end extends to the side end surface 5c of the door body 5.
  • the handle 81 is located in the accommodating space 82, and the front surface of the handle 81 is flush with the front surface 5a of the door body 5 on the upper part of the accommodating space 82, so as to reduce the occupied volume of the low-pressure storage unit 15 .
  • the handle 81 in the second position is completely accommodated in the accommodation space 82 of the door body 5 and does not exceed the front surface of the door body 5.
  • the handle 81 is in the first position, and the handle 81 moves out of the accommodating space 82 and is located on the front side of the front surface 5a of the door body 5; the handle 81 is in the first position It occurs when the user opens the low-pressure storage unit 15 and the door of the refrigerator 1 is opened at this time, which does not affect the arrangement of the internal space of the refrigerator 1 occupied by the low-pressure storage unit 15.
  • the handle 81 When the door of the refrigerator 1 is in the closed state and the door 5 of the low-pressure storage unit 15 is in the closed position but the handle 81 is in the second position (retracted position), the inner side of the door and the handle 81 are kept at a certain distance to avoid closing the door Damage to the low-pressure storage unit 15 is caused. Therefore, by arranging the handle 81 in the accommodating space 82, the distance between the low-pressure storage unit 15 and the inner side of the door of the refrigerator 1 can be reduced, thereby increasing the space utilization of the refrigerator 1.
  • the decorative cover 8 is connected to the door body 5 to shield the pressure relief device from the front of the door body 5. In this way, the rod body 20 is integrally located in the door body 5.
  • the handle 81 After being fixed to the door body 5, the handle 81 is rotatably connected to the door body 5. When the handle 81 is rotated, the second matching portion 7 rotates, and the rod body 20 and the rotating plate 59 both rotate around the rotation axis X.
  • the handle 81 can rotate around the rotation axis X between a first position and a second position.
  • the angle formed between the handle 81 and the housing space 82 of the door 5 close to the wall surface of the housing 4 is the largest, and the largest angle is formed between its lower end and the housing space 82 of the door 5 close to the wall surface of the housing 4 Distance, so the first position can also be called the extended position.
  • the angle formed between the handle 81 and the wall surface of the housing space 82 on the door 5 close to the housing 4 is the smallest, and the minimum distance is formed between its lower end and the wall surface of the housing space 82 close to the housing 4, so
  • the second position may also be referred to as the retracted position.
  • the second matching portion 7 linked with the handle 81 and the rod body 20 linked with the second matching portion 7 are also restricted to rotate between the first limit position and the second limit position, wherein, when the handle 81 is in the first position When the second matching portion 7 and the rod body 20 are in the first limit position (as shown in Figures 6 and 8), when the handle 81 is in the second position, the second matching portion 7 and the rod body 20 are both in the second limit position ( As shown in Figure 9).
  • FIG. 12 is a partial structural schematic diagram of the refrigerator provided by some embodiments of the present disclosure when the refrigerator door is completely closed;
  • FIG. 13 is a schematic diagram of the relative position of the handle and the turning beam unit when the refrigerator door is completely closed according to some embodiments of the present disclosure One;
  • Figure 14 is a schematic diagram of the relative position of the handle and the turning beam unit when the refrigerator door of the refrigerator provided by some embodiments of the present disclosure is completely closed;
  • Figure 15 is the refrigerator provided by some embodiments of the present disclosure when the refrigerator door is completely closed A schematic diagram of the relative positions of the turning beam unit and the guide groove;
  • FIG. 16 is a schematic diagram of the assembly structure of the guide groove and the inner liner of the refrigerator provided by some embodiments of the present disclosure;
  • FIG. 17 is the closing process of the refrigerator door of the refrigerator provided by some embodiments of the present disclosure
  • Fig. 18 is a schematic diagram of the handle and the turning beam unit during the closing process of the refrigerator door of the refrigerator provided by some embodiments of the present disclosure
  • Fig. 19 is the refrigerator of the refrigerator provided by some embodiments of the present disclosure The second schematic diagram when the handle is in contact with the turning beam unit during the door closing process
  • FIG. 20 is a schematic diagram of the relative positions of the turning beam unit and the guide groove during the closing process of the freezer door of the refrigerator provided by some embodiments of the present disclosure
  • FIG. 21 is this A schematic diagram of an exploded structure of a flip beam unit of a refrigerator provided by some embodiments is disclosed.
  • the inner lining surface of the refrigerator door 11 is provided with a turning beam unit 3, and its rotation axis is denoted as turning shaft M;
  • the turning beam unit 3 includes turning parallel to The free end of the shaft M rotates around the turning axis M;
  • the turning beam unit 3 is located in the front area of the handle 81 of the low-pressure storage unit 15; that is, on the projection parallel to the plane of the refrigerator door, the projection of the turning beam unit 3 and The projections of the low-pressure storage unit 15 overlap.
  • the turning beam unit 3 can be used to interact with the handle 81 when it is turned around its turning axis M during the closing process of the refrigerator door 11 to apply the handle 81 toward the low-pressure storage unit.
  • the force of 15 exerts a torque on the handle 81 to move towards the low-pressure storage unit 15, so that the handle 81 rotates downward and inward, and the handle 81 drives the second mating part to rotate, so that the second mating part and the first mating part Cooperate to achieve the locking of the door and the housing;
  • the present disclosure defines the relative position of the turning beam assembly and the low-pressure storage unit 15 and the position of the handle 81, which can make the unlocked low pressure during the turning process of the turning beam unit 3
  • the handle 81 of the storage unit 15 is locked, which effectively avoids frequent operation of the air extraction device (vacuum pump) caused by the user forgetting to lock the low-pressure storage unit 15 due to time constraints, unavailability, etc. during use, thereby effectively reducing noise and power consumption.
  • the turning beam unit 3 includes an integral door turning beam rear cover 9, which is connected to the refrigerator door 11 through a first door hinge 31 and a second door hinge 32, and
  • the door beam rear cover 9 and the two door hinges are respectively elastically connected by torsion springs; wherein, the first door hinge 31 is located above the second door hinge 32.
  • the door swivel rear cover 9 includes a rear side plate 91 and a front side plate 92 arranged around the rear side plate 91.
  • a accommodating cavity 90 is formed between the front side plate 92 and the rear side plate 91, and the accommodating cavity 90 is filled with an insulating member 94;
  • an end cover 93 is provided at the opening end of the accommodating cavity 90 of the door beam rear cover 9.
  • Both the door hinge and the back cover 9 of the door turning beam have through holes through which the arm of the torsion spring is passed, and the upper and lower door hinges are connected with the back cover 9 of the door turning beam by the torsion spring. The specific connection is described below.
  • Both the first door hinge 31 and the second door hinge 32 include a fixed plate 33 fixedly connected to the refrigerator door 11 and a turning column 30 connected to the fixed plate 33; A mounting hole 91a and a second mounting hole 91b, a first fixing hole 91c is provided near the first mounting hole 91a, and a second fixing hole 91d is provided near the second mounting hole 91b;
  • the turning post 30 of the first door hinge 31 is installed in the first mounting hole 91a on the back cover 9 of the door turning beam, and the turning post 30 of the second door hinge 32 is installed in the second mounting hole 91b on the back cover 9 of the door turning beam, In this way, the door pivoting beam rear cover 9 can rotate around the turning post 30 of the door hinge.
  • the turning column 30 of the first door hinge 31 and the turning column 30 of the second door hinge 32 are both provided with a third fixing hole 34;
  • the first door hinge 31 and the door beam rear cover 9 are connected by a first torsion spring 36
  • the second door hinge 32 and the door beam rear cover 9 are connected by a second torsion spring 37; wherein one end of the first torsion spring 36 is installed in the first fixing hole 91c, and the other end is installed on the first door hinge 31
  • Three fixing holes 34; one end of the second torsion spring 37 is installed in the second fixing hole 91d, and the other end is installed in the third fixing hole 34 on the second door hinge 32.
  • the top wall of the refrigerator is provided with a guide groove 13a, and the turning beam unit 3 can be slidably fitted with the guide groove 13a to realize the turning beam unit 3 between a state perpendicular to the refrigerator door 11 and a state parallel to the refrigerator door 11 Switch.
  • a guide seat 13 is installed on the top wall of the cabinet of the refrigerator, and the guide groove 13a is opened on the guide seat 13.
  • a guide 21 is fixed on the top of the door turning beam rear cover 9.
  • the guide 21 is used as a rotating part of the turning beam unit 3 to cooperate with the guide groove 13a to realize the turning beam unit 3 in a state perpendicular to and parallel to the refrigerator door 11 Switch between the states of the refrigerator door 11.
  • the guide groove 13a defines the maximum displacement W of the free end of the turning beam unit 3 in the direction perpendicular to the refrigerator door 11 into the storage room; that is, the maximum distance between the rear groove wall of the guide groove 13a and the front end surface P of the inner liner 2b It is the maximum displacement W of the free end of the turning beam unit 3 in the direction perpendicular to the refrigerating box door 11 into the storage room.
  • the top side plate of the door beam rear cover 9 is provided with a guide hole 92a; the guide 21 includes a guide block 22 installed in the guide hole 92a; the top surface of the guide block 22 is used to interact with the guide
  • the groove bottom of the groove 13a is in contact with and slidingly fits, and the groove bottom of the guide groove 13a is located on the same horizontal surface.
  • the guide block 22 is pressed against the guide groove 13a during the sliding process, that is, the guide block 22 is compressed during the sliding process.
  • the height of the guide 21 gradually increases along the opening direction of the refrigerator door 11, that is, the height of the top surface of the guide block 22 gradually increases along the opening direction of the refrigerator door 11.
  • the rear side plate 91 of the door swivel back cover 9 is provided with a first limiting block 91e;
  • the guide 21 includes a base 23 located at the bottom of the guide block 22, and the base 23 is installed in the accommodating cavity formed by the door swivel back cover 9 90 within;
  • the base 23 is provided with a second limit block, and is provided with a mounting groove 26 for installing the spring 27; the position of the mounting groove 26 on the base 23 and the rear side plate 91 of the door beam rear cover 9
  • the first limiting block 91e corresponds to the first limiting block 91e; one end of the spring 27 is fixed to the first limiting block 91e, and the other end is fixed to the second limiting block.
  • the turning post 30 of the first door hinge 31 is provided with a guide through hole 35;
  • the base 23 includes a guide post 24 at the bottom thereof, and the guide post 24 is installed in the guide through hole 35 on the first door hinge 31;
  • a guide block 22 During the sliding process in the guide groove 13a, the guide block 22 is pressed against the guide groove 13a, and when the guide 21 moves downward under the pressure exerted by the guide groove 13a, the guide post 24 on the guide 21 moves along the first door hinge 31 The upper guide through hole 35 moves downward. After the guide block 22 moves out of the guide groove 13a, the external force applied to the guide 21 is removed, and the guide 21 is reset under the action of the spring 27.
  • the guide 21 can shrink into the accommodating cavity 90 when subjected to the pressure of the guide groove 13a. Such a design can ensure a smoother opening process of the refrigerator door without accidental jamming in the guide groove 13a.
  • the turning beam unit 3 When the refrigerator door 11 is opened, the turning beam unit 3 is tightly attached to the side of the door hinge fixed to the inner lining of the refrigerator door 11 due to the torsion force of the torsion spring.
  • the refrigerator door 11 Under the action of external force, the refrigerator door 11 is gradually closed. After reaching a certain angle, the top guide 21 of the turning beam unit 3 enters the guide groove 13a. When the door is closed, the guide 21 is pressed by the wall of the guide groove 13a. It starts to flip, and the torsion spring is compressed in the radial direction. When the torsion spring is turned over 45°, it reaches the critical value of the torsion spring. After that, the torsion spring starts to stretch and works together with the pressure of the guide groove 13a to make the turning beam unit 3 quickly turn into place until the refrigerator door 11 is closed. At this time, the torsion spring is released and the torsion spring reaches a relaxed state again. After the refrigerator door 11 is closed, the turning beam unit 3 comes into contact with the seal provided on the refrigerator door 11, which effectively prevents cold air from overflowing between the two pairs of door-opening seams.
  • the turning beam unit 3 When the low-pressure storage unit 15 is not locked, the turning beam unit 3 is turned over in the above manner when the refrigerator door 11 is closed. Since the front end gap L of the handle 81 in the unlocked state is smaller than the width W of the turning beam unit 3, the turning beam During the turning of the unit 3, it interacts with the handle 81 to exert a force on the handle 81 toward the low-pressure storage unit 15, thereby applying a torque to the low-pressure storage unit 15 on the handle 81, causing the handle 81 to rotate downward and inward.
  • the present disclosure defines the relative position of the turning beam assembly and the low-pressure storage unit 15 and the position of the handle 81, which can be During the turning process of the turning beam unit 3, the handle 81 of the unlocked low-voltage storage unit 15 is locked, which effectively prevents the user from forgetting to lock the low-voltage storage unit 15 due to time constraints, lack of hands, etc. during use.
  • the air extraction device vacuum pump works frequently, thereby effectively reducing noise and power consumption.

Abstract

本公开提供了一种冰箱，包括箱体、收容于箱体内的低压储藏单元、与低压储藏单元相连通且用于将低压储藏单元内的空气抽出的抽气装置; 低压储藏单元包括壳体、门体、设于壳体两端的第一配合部、设于门体上的第二配合部、与第二配合部联动的把手、设于箱门上且位于低压储藏单元前方区域的翻转梁单元; 垂直于箱门方向，翻转梁单元进入储藏间内的最大位移为W，门体与壳体处于关闭位置但并未锁紧状态，把手最前端与内胆的前端面P之间的距离记为L; ，L＜W；翻转梁单元绕其翻转轴翻转时能够对并未锁紧状态的把手施加朝向低压储藏单元的作用力以使门体与壳体的锁定。

Description

冰箱
相关申请的交叉引用
本公开要求在2020年5月11日提交中国专利局、申请号为202010393365.0、发明名称为“冰箱”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开属于冰箱的技术领域，尤其涉及一种冰箱。
背景技术
冰箱作为居家生活中不可或缺的电器产品，占据着市场的重要份额。随着消费者对生鲜食品品质要求的提高，随之对冰箱的要求也越来越高，要求冰箱具有更高的配置和更强大的功能，尤其是希望所储藏的生鲜食品能够具有更长的储藏期，从而保证食材的新鲜度，防止营养成分的流失。
为了将食物更好的存储，现已发展出在冰箱内设置真空抽屉，通过抽真空装置对真空抽屉进行抽真空处理。抽真空的主要作用是对真空抽屉内进行除氧，以防止食品变质。目前带有抽真空功能的冰箱，真空抽屉需要用户手动将真空抽屉自锁上，但是用户在使用时，可能存在时间紧张、空不出手来等原因忘记锁紧真空抽屉，就会导致真空泵频繁工作，噪音大，耗电高。
发明内容
本公开一些实施例提供了一种冰箱，包括：
箱体，限定隔热的由内胆围成的储藏间；所述箱体包括箱门；
低压储藏单元，收容于所述储藏间内，其内可被抽空气形成低于所述箱体外部大气压的气压以利于食物的保鲜；
抽气装置，与所述低压储藏单元相连通，用于将所述低压储藏单元内的空气抽出；
翻转梁单元，设于所述箱门上，且位于所述低压储藏单元前方区域内；所述翻转梁单元包括平行于其翻转轴M的自由端，其自由端绕翻转轴M旋转以实现翻转梁单元在垂直于箱门的状态和平行于箱门的状态之间切换；
所述低压储藏单元包括：
壳体，限定具有用于取放物品的取放口的储藏室；
门体，用以打开或关闭所述取放口；
第一配合部，设于所述壳体的相对两端；
第二配合部，可旋转地设于所述门体的两端，用于与相应侧的所述第一配合部配合实现所述门体的锁定与解锁；
把手，位于所述门体前侧，且其末端与相应侧的所述第二配合部固定连接；
其中，垂直于所述箱门方向上，所述翻转梁单元的自由端进入所述储藏间内的最大位移记为W；所述门体与壳体处于关闭位置但并未锁紧状态时，所述把手最前端与所述内胆的前端面P之间的距离记为L；L＜W；
所述箱门关闭过程中，所述翻转梁单元绕其翻转轴M翻转，并对并未锁紧状态的所述把手施加朝向所述低压储藏单元的作用力，所述把手带动所述第二配合部旋转，以使所述第二配合部与所述第一配合部配合，实现所述门体与所述壳体的锁定。
附图说明
图1为本公开一些实施例提供的冰箱的整体结构示意图；
图2为本公开一些实施例提供的冰箱的低压储藏单元的分解示意图；
图3为本公开一些实施例提供的冰箱的壳体的立体图；
图4为本公开一些实施例提供的冰箱的壳体的另一个角度的立体图；
图5为本公开一些实施例提供的冰箱的门体的分解示意图；
图6为本公开一些实施例提供的冰箱的门体与壳体处于关闭位置但并未锁紧时低压储藏单元的结构示意图；
图7为本公开一些实施例提供的冰箱的门体与壳体处于关闭位置但并未锁紧时低压储藏单元的示意图局部剖视图；
图8为本公开一些实施例提供的冰箱的门体与壳体处于关闭位置但并未锁紧时低压储藏单元另一位置的示意图局部剖视图；
图9为本公开一些实施例提供的冰箱的门体与壳体锁紧时低压储藏单元的结构示意图；
图10为本公开一些实施例提供的冰箱的门体与壳体锁紧时低压储藏单元的示意图局部剖视图；
图11为本公开一些实施例提供的冰箱的门体与壳体解锁且处于分离状态时低压储藏单元的结构示意图；
图12为本公开一些实施例提供的冰箱的冷藏箱门完全关闭时的部分结构示意图；
图13为本公开一些实施例提供的冰箱的冷藏箱门完全关闭时把手与翻转梁单元的相对位置示意图一；
图14为本公开一些实施例提供的冰箱的冷藏箱门完全关闭时把手与翻转梁单元的相对位置示意图二；
图15为本公开一些实施例提供的冰箱的的冷藏箱门完全关闭时翻转梁单元与导向槽的相对位置示意图；
图16为本公开一些实施例提供的冰箱的导向槽与内胆的装配结构示意图；
图17为本公开一些实施例提供的冰箱的冷藏箱门关闭过程中的部分结构示意图；
图18为本公开一些实施例提供的冰箱的冷藏箱门关闭过程中把手与翻转梁单元相接触时的示意图一；
图19为本公开一些实施例提供的冰箱的冷藏箱门关闭过程中把手与翻转梁单元相接触时的示意图二；
图20为本公开一些实施例提供的冰箱的的冷藏箱门关闭过程中翻转梁单元与导向槽的相对位置示意图；
图21为本公开一些实施例提供的冰箱的翻转梁单元的分解结构示意图。
具体实施方式
下面结合具体实施例对本公开作进一步说明，以使本领域的技术人员可以更好的理解本公开并能予以实施，但本公开所要求保护的范围并不局限于具体实施方式中所描述的范围。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
需要说明的是，本公开实施例中所有方向性指示(诸如上、下、左、右、前、后......)仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应的随之改变。
另外，在本公开中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。
另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本公开要求的保护范围之内。
图1为本公开一些实施例提供的冰箱的整体结构示意图，参照图1，一种冰箱1，冰箱1包括隔热的箱体2，箱体2包括外壳2a、内胆2b以及位于二者之间的热绝缘层(未图示)。箱体2限定多个隔热的储藏间以储藏食物等物品。在本实施例中，这些储藏间分别是位于上部的冷藏室12、位于底部的冷冻室。储藏间可由各自对应的箱门关闭。本公开中冷藏室12设置有对开式的冷藏箱门，冷冻室设置有对开式的冷冻箱门。
应当理解，本公开不应当局限于冰箱1的储藏隔间的具体分布形式，本公开也可以应用其他形式的冰箱1，例如具有抽屉式门的冰箱1等。
冰箱1具有形成闭环的蒸发式制冷系统。制冷系统至少包括压缩机(未图示)、冷凝器(未图示)、节流装置(未图示)以及蒸发器(未图示)。鉴于这样的制冷系统在现有技术中为公知技术，因此省略对其进一步的描述。当然，冰箱1也可以使用其它形式的制冷系统(如吸收式制冷系统、热电制冷系统)也是可以的。
冰箱1设有具有可保持在低压状态的低压储藏单元15以及用以将气体从低压储藏单元15内抽离的抽气装置。抽气装置可以包括真空泵以及连接在真空泵和低压储藏单元15之间的管路。
冰箱1设有控制抽气装置对低压储藏单元15进行抽真空的控制单元，以实现对低压储藏单元15抽真空的自动控制。
在本实施例中，低压储藏单元15设置在冷藏室12内。应当理解，在其他的实施例中，低压储藏单元15也可以设置在其他储藏间内，例如温度范围可在冷藏温区和冷冻温区之间切换的变温室。
低压储藏单元15位于冷藏室12的底部，被支撑在冷藏室12的底壁上。低压储藏单元15的相邻位置可设有一个湿度较高、适于保存蔬菜等食品的保鲜容器44；低压储藏单元15与保鲜容器44并列设置于冷藏室12的底部。
低压储藏单元15可独立于箱体2地构造后组装在箱体2内。图2为本公开一些实施例提供的冰箱的低压储藏单元的分解示意图；图3为本公开一些实施例提供的冰箱的壳体的立体图；图4为本公开一些实施例提供的冰箱的壳体的另一个角度的立体图。参照图2-图4，在本公开一些实施例中，低压储藏单元15具有大致为扁平的长方体状，低压储藏单元15的宽度与保鲜容器 44的宽度之和稍小于冷藏室12的宽度，从而有效分配冷藏室12的底部空间，使得保鲜容器44和低压储藏单元15均可插入冷藏室12内或从冷藏室12内拉出。
低压储藏单元15包括固定在冷藏室12内的壳体4以及连接于壳体4并可推入或退出冷藏室12的门体5。
在本公开的一些实施例中，壳体4具有箱形结构，它限定具有食物取放口14a的扁平低压储藏室14。本实施例中，取放口14a位于面向使用者的壳体4的前端。
壳体4的箱壁外侧设有网格状的加强筋40，以增加壳体4的箱壁强度，避免壳体4于抽真空后因内外气压差所引起变形。
壳体4包括相连接形成低压储藏室14的上壳体41和下壳体42，上壳体41与下壳体42通过超声波焊接为一体；具体的，下壳体42包括底壁42a及依次连接设于底壁42a边沿处的第一下侧壁42c、下后壁42b、第二下侧壁42d、及位于下壳体42的前端部并形成有取放口14a的前端壁42e；其中下壳体的底壁42a即为低压储藏单元15的底壁。本实施例中，前端壁42e可具有大致垂直于水平面、用以与门体5对接的平整的对接面43。
上壳体41包括顶壁41a及依次连接设于顶壁41a边沿处的上后壁41b、第一上侧壁41c、第二上侧壁41d；上壳体41的第一上侧壁41c和第二上侧壁41d的下壁面与顶壁41a的距离由后向前均呈线性减小，并于顶壁41a的前端边沿处减小为0。即第一上侧壁41c与第二上侧壁41d于垂直于顶面的平面上的投影为三角形。
其中，上后壁41b与下后壁42b相配合，第一下侧壁42c与第一上侧壁41c相配合，第二下侧壁42d与第二上侧壁41d相配合；顶壁41a的前端部与下壳体42的前端壁42e相配合，通过超声波焊接将以上相对接位置焊接固定，以将上壳体41和下壳体42固定连接，以形成低压储藏室14。以上超声波焊接有效提高了上壳体41与下壳体42的连接强度，并确保了壳体4整体的气密性。另外，壳体4的取放口14a形成于下壳体42的前端壁42e上，使壳体4的取放口14a具有一体性，有效保障壳体4的气密性。再者，第一上侧壁41c和第二上侧壁41d的下壁面与顶壁41a的距离由后向前均呈线性减小，并于顶壁41a的前端边沿处减小为0的设置，减少了上壳体41与下壳体42配合的对接面的数量，提高壳体4的整体气密性，尤其是壳体4于取放口14a处的气密性。另一方面，壳体4设置为上壳体41与下壳体42的分体结构， 方便加工网格状的加强筋40。
门体5可设置环形的密封元件16，以使门体5处于关闭位置时壳体4与门体5之间形成气密性接合，防止气体从壳体4和门体5之间的接合处进入低压储藏室14。密封元件16也可以设置在壳体4的前端，例如连接在前端壁42e上。
当低压储藏室14被门体5关闭且抽气装置启动时，位于低压储藏室14内的气体被抽离，低压储藏室14处于低压状态。根据本公开一个优选的实施例，在抽空程序结束时，低压储藏室14内的压强介于一个标准大气压和绝对真空之间。由于低压储藏室14内的气压低于标准大气压，本领域技术人员也俗称其“真空室”。
门体5为抽屉式门，门体5可被推向壳体4以关闭低压储藏室14的取放口14a，或者拉出以打开低压储藏室14。门体5的后侧连接托盘状的置物容器54用以放置物品。用户通过将置物容器54推入或拉出低压储藏室14来获得位于低压储藏单元15内的物品或将物品存放在低压储藏单元15内。门体5和置物容器54一起构成了可推入和拉出壳体4内的抽屉单元。
置物容器54和壳体4之间可设置可伸缩的导轨单元17，从而门体5以及置物容器54可流畅地从壳体4中拉出或推入壳体4内。
低压储藏单元15包括一对用以将处于关闭位置的门体5和壳体4锁紧的锁紧机构。如图2-图11所示，每个锁紧机构包括设置在壳体4上的第一配合部6及围绕旋转轴X可旋转地设于门体5的两端用于与相应侧的第一配合部6配合实现门体5的锁定与解锁的第二配合部7。通过第二配合部7和第一配合部6的结合，门体5被锁定在关闭位置，且壳体4和门体5之间的密封元件16受锁紧机构产生的锁紧力挤压而充分变形，进而门体5和壳体4之间的气密性提高。
壳体4靠近取放口14a处的第一下侧壁42c和第二下侧壁42d上均设有锁扣容纳部61及位于锁扣容纳部61内的第一配合部6；壳体4上设有平行于壳体4的底壁42a的第一围板60a、与第一围板60a远离取放口14a一端的后端部相连且向前向下延伸至壳体4的最前端的第二围板60b。第一围板60a与第二围板60b连接形成锁扣容纳部61。锁扣容纳部61于壳体4的最前端形成有通过口64，通过口64用于插入或抽出第二配合部7。本实施例中，第一围板60a和第二围板60b远离壳体4箱壁的端面与加强筋40上远离壳体4箱壁的端面共端面。第一配合部6上远离壳体4箱壁的端面与加强筋40上远离壳体 4箱壁的端面共端面，以上设置能够确保不增加低压储藏单元15的占用空间，以充分利用空间。
第一配合部6包括锁定部62；锁扣容纳部61内，锁定部62固定于第一围板60a上；锁定部62包括垂直于第一围板60a的锁定壁62a和倾斜设置的导向壁62b；导向壁62b的一端与锁定壁62a远离第一围板60a的端部相连接，另一端与第一围板60a靠近取放口14a的端部相连接。
壳体4至少其中一侧的锁扣容纳部61的上部设有与抽气装置电性连接且用于与第二配合部7配合检测门体5的锁定与解锁状态的位置检测装置。位置检测装置包括固定安装于壳体上的行程开关63、可滑动连接于壳体上的行程推杆63a；行程开关63具有触发部；行程推杆63a的一端与触发部配合，另一端与第二配合部7配合；第二配合部7沿锁定壁62a滑移时，推动行程推杆63a移动，进而触发行程开关63。第一围板60a上设有与导向壁62b分居于锁定壁62a的两侧的开口65；开口65与锁定壁62a相邻设置。行程开关63的行程推杆63a通过开口65伸入锁扣容纳部61内，并位于锁定壁62a的相邻位置。
图5为本公开一些实施例提供的冰箱的门体的分解示意图；图6为本公开一些实施例提供的冰箱的门体与壳体处于关闭位置但并未锁紧时低压储藏单元的结构示意图；图7为本公开一些实施例提供的冰箱的门体与壳体处于关闭位置但并未锁紧时低压储藏单元的示意图局部剖视图；图8为本公开一些实施例提供的冰箱的门体与壳体处于关闭位置但并未锁紧时低压储藏单元另一位置的示意图局部剖视图；图9为本公开一些实施例提供的冰箱的门体与壳体锁紧时低压储藏单元的结构示意图；图10为本公开一些实施例提供的冰箱的门体与壳体锁紧时低压储藏单元的示意图局部剖视图；图11为本公开一些实施例提供的冰箱的门体与壳体解锁且处于分离状态时低压储藏单元的结构示意图
如图2、图5-图11所示，门体5上连接有装饰盖8。门体5的两相对端设有连接件83，第二配合部7可旋转地设于连接件83上。第二配合部7绕其旋转轴X进行旋转，并带动与之固定的把手81旋转。
把手81的两端分别固定一个第二配合部7。在一些实施例中，第二配合部7固定于把手81的相应末端后，通过固定装置例如螺钉而将其不可相对把手81移动地固定在把手81上，从而当把手81旋转移动时，第二配合部7也围绕旋转轴X旋转。
在本公开一些实施例中，第二配合部7包括锁定板，锁定板可绕旋转轴X转动，旋转轴X的轴线水平方向设置并与把手81具有设定距离，锁定板面向壳体4侧壁的一侧设有凸块72，锁定板在把手81的驱动下绕旋转轴X转动时，凸块72沿导向壁62b滑移至锁定壁62a后侧实现门体5与壳体4的锁定。
锁定板呈平板状，其包括依次首尾相接的第一板条71a、第二板条71b和第三板条71c，第一板条71a与第二板条71b连接处延伸形成与第一板条71a位于第三板条71c的同一侧且与第一板条71a之间呈锐角的第四板条71d。
第二板条71b的中间位置可旋转地固定于门体5端部的连接件83上；凸块72设于第二板条71b与第三板条71c的连接处。第四板条71d远离第三板条71c的端部固定于把手81的相应末端。当把手81旋转移动时，把手81通过第四板条71d带动第二配合部7整体绕其位于第二板条71b中间位置的旋转轴X旋转。
门体5的前侧可设有用以关闭或打开设置在门体5上、用于连通低压储藏单元15的内外两侧的充气通道18(如图5所示)、用于关闭或打开充气通道18的泄压装置。泄压装置包括与第二配合部7联动的杆体20、固定连接于杆体20上旋转板59及固定于旋转板59上用于关闭或打开充气通道18的泄压件19。其中杆体20的两端分别固定于对应侧的锁定板上，杆体20与凸块72分别位于旋转轴X的两侧；旋转板59的旋转轴线与第二配合部的旋转轴X重合；第二配合部7在把手81的驱动下绕旋转轴X转动时，带动杆体20以及旋转板59同轴转动，泄压件19关闭充气通道18。其中，杆体20的两端部贯穿装饰盖8，第二配合部7的第一板条71a与杆体20的相应一端不可相对移动地固定。装饰盖8两侧设有与杆体20旋转运动轨迹相一致的避让孔39，且门体5与装饰盖8之间存在供杆体20旋转运动的间隙。
结合图2并参照图5，门体5具有从其前表面5a向后凹陷、用以收容泄压装置的至少一部分的收容腔52。充气通道18设于收容腔52远离装饰盖8的腔壁上，并连通低压储藏室14和收容腔52；收容腔52内设有以旋转轴X为中心轴的凸柱53；旋转板59一端与杆体20固定、另一端可绕凸柱53旋转地固定于收容腔52内；泄压件19设于旋转板59的内侧；旋转板59与收容腔52远离装饰盖8的腔壁之间设有与泄压件19分居于旋转板59相对两侧的扭簧。门体5与壳体4锁紧时，第一配合部6与第二配合部7锁定，扭簧压紧旋转板59，使泄压件19压紧充气通道18。门体5处于关闭位置但尚未被锁紧时，释放施加的外力后，在扭簧的作用下，旋转板59向内向下压，旋转 板59带动第二配合部7和把手81向内向下旋转；如此在用户关闭门体时，能够减小用户施力，使关闭操作简易化；另外，扭簧能够限制把手81向上向前旋转的极限位置，这可防止把手81继续旋转而导致把手81的上端向门体5前表面5a靠近时用户的手被把手81和门体5挤压。
根据本公开一个实施例，旋转板59的端部设有用于安装杆体20且截面呈多边形的固定通道，杆体20截面形状与固定通道截面形状相一致，截面多边形的设置使杆体20与旋转板59不可产生相对旋转运动。
如图6-图8所示，门体5处于关闭位置但尚未被锁紧时的状态，此时把手81处于第一位置。当用户向下向后按压把手81时，把手81围绕着第二配合部7的旋转轴X向内旋转，同时把手81带动第二配合部7和杆体20向内旋转，第二配合部7的凸块72逐渐靠近锁定部62远离取放口14a的一侧，同时逐渐靠近行程开关63的行程推杆63a；杆体20带动旋转板59向内旋转，旋转板59带动泄压件19逐渐靠近充气通道18。
如图9-图10所示，门体5和壳体4处于锁紧状态，此时把手81处于第二位置。当把手81旋转至第二位置时，第二配合部7旋转进入锁扣容纳部61，第二配合部7上的凸块72移动至锁定壁62a后侧的相邻位置，并推动行程推杆63a上移，触发行程开关63，行程开关63发送门关闭的控制信号至控制单元，控制单元根据控制信号控制抽气装置开始抽气；此时，泄压件19与充气通道18紧密接触以封堵充气通道18，低压储藏室14形成封闭空间。以上第一配合部6、第二配合部7、与抽气装置电性连接的行程开关63的设置，能够及时监测门体5与壳体4的锁定状态，以于门体5与壳体4锁定时，及时发送抽真空信号给抽气装置，以确保低压储藏单元15的真空度，确保食物的保鲜效果。
如图11所示，门体5和壳体4处于解锁且分离的打开状态时，推动门体5进行关闭；作为一种关门方式，用户可以向上提起把手81并向壳体4推动，待门体5处于关闭位置但尚未被锁紧状态时，向下向后按压把手81即可完成锁定，同时泄压件19与充气通道18紧密接触以封堵充气通道18。作为另一种关门方式，用户可直接推动装饰盖8，在装饰盖8的带动下，第二配合部7平行移动至锁扣容纳部61，第二配合部7上的凸块72与锁定部62的导向壁62b相接触，在水平推力和导向壁62b的作用下，凸块72沿导向壁62b下移，并带动第二配合部7绕旋转轴X向下旋转；凸块72向下移动逐渐靠近导向壁62b与锁定壁62a的连接处；继续推动门体5向壳体4移动，凸块72移动至 锁定壁62a后侧的相邻位置，门体5与壳体4锁定；同时泄压件19与充气通道18紧密接触以封堵充气通道18。在本公开中，直接推动门体5前侧的装饰盖8进行推动关闭的关门方式，无需使用把手81，方便快捷，减少用户的将施力点放置于门把手81上的精力投入；同时在导向壁62b的作用下，锁定过程流畅稳定，避免撞击。
门体5和壳体4处于锁紧状态，当要打开门体5时，用户可握住把手81的下端向上向外抬，把手81围绕旋转轴X旋转，固定在连接件83上的第二配合部7向上旋转。在这个过程中，杆体20向上旋转并带动旋转板59绕旋转轴X向上旋转，泄压件19也解除了对充气通道18的封闭，外部气体通过充气通道18进入低压储藏室14而平衡内外压力。之后，用户可握住把手81向前拉，即可打开门体5。
以上第二配合部7和第一配合部6不增加低压储藏单元15占用空间的情况下，完成锁定，结构紧凑，配合稳定。
第二配合部7和第一配合部6在锁紧位置的结合给门体5和壳体4之间提供一个锁紧力，而使密封元件16充分变形，进而提高门体5和壳体4之间的气密性。
当把手81处于如图9和图10所示的位置时，充气通道18被泄压件19紧密关闭；当把手81处于如图6-图8所示的位置时，充气通道18已被打开，外部气体可通过充气通道18进入低压储藏室14进而释放低压储藏室14的低压状态。应当理解，在其他的实施例中，充气通道18和泄压件19也可以孤立于把手81地设置。例如在门体5上设有一个按钮，通过按压该按钮，充气通道18被打开，之后用户再操作把手81以打开门体5。
门体5靠近其下端面5b的区域从其前表面5a向后凹陷形成容纳把手81的容纳空间82；本实施例中，容纳空间82的下端延伸至门体5的下端面5b，且左右两端延伸至门体5的侧端面5c。门体5锁定状态时，把手81位于容纳空间82内，把手81的前表面与门体5位于容纳空间82上部的门体5的前表面5a相平齐，以减少低压储藏单元15的占用体积。特别优选地，处于第二位置的把手81完全容纳在门体5的容纳空间82内，不超出门体5的前表面。门体5处于关闭位置但尚未被锁紧时的状态，此时把手81处于第一位置，把手81移出容纳空间82，并位于门体5的前表面5a的前侧；把手81处于第一位置发生于用户打开低压储藏单元15时，此时冰箱1的箱门打开，不影响低压储藏单元15所占用冰箱1内部空间的设置。
在冰箱1的箱门处于关闭状态且低压储藏单元15的门体5处于关闭位置但把手81处于第二位置(退回位置)时，箱门的内侧与把手81保持一定的距离以免关闭箱门时对低压储藏单元15造成损坏。因此，通过将把手81设置于容纳空间82内，从而低压储藏单元15和冰箱1的箱门内侧之间的距离可以被减小，进而可增加冰箱1的空间利用率。
装饰盖8连接在门体5上以从门体5的正面遮蔽泄压装置。以此，杆体20整体地位于门体5内。
在被固定到门体5之后，把手81可旋转地连接于门体5上。当旋转把手81时，第二配合部7旋转、杆体20和旋转板59都围绕着旋转轴X进行旋转。
把手81可围绕着旋转轴X在第一位置和第二位置之间旋转。在第一位置，把手81与门体5的容纳空间82靠近壳体4的壁面之间形成的夹角最大，其下端与门体5的容纳空间82靠近壳体4的壁面之间形成最大的距离，因此第一位置也可称为伸出位置。在第二位置，把手81与门体5上的容纳空间82靠近壳体4的壁面之间形成的夹角最小，其下端与容纳空间82靠近壳体4的壁面之间形成最小的距离，因此第二位置也可称为退回位置。相应地，与把手81联动的第二配合部7及与第二配合部7联动的杆体20也被限制在第一极限位置和第二极限位置之间旋转，其中，当把手81处于第一位置时，第二配合部7和杆体20均处于第一极限位置(如图6和图8所示)，当把手81处于第二位置，第二配合部7和杆体20均处于第二极限位置(如图9所示)。
图12为本公开一些实施例提供的冰箱的冷藏箱门完全关闭时的部分结构示意图；图13为本公开一些实施例提供的冰箱的冷藏箱门完全关闭时把手与翻转梁单元的相对位置示意图一；图14为本公开一些实施例提供的冰箱的冷藏箱门完全关闭时把手与翻转梁单元的相对位置示意图二；图15为本公开一些实施例提供的冰箱的的冷藏箱门完全关闭时翻转梁单元与导向槽的相对位置示意图；图16为本公开一些实施例提供的冰箱的导向槽与内胆的装配结构示意图；图17为本公开一些实施例提供的冰箱的冷藏箱门关闭过程中的部分结构示意图；图18为本公开一些实施例提供的冰箱的冷藏箱门关闭过程中把手与翻转梁单元相接触时的示意图一；图19为本公开一些实施例提供的冰箱的冷藏箱门关闭过程中把手与翻转梁单元相接触时的示意图二；图20为本公开一些实施例提供的冰箱的的冷藏箱门关闭过程中翻转梁单元与导向槽的相对位置示意图；图21为本公开一些实施例提供的冰箱的翻转梁单元的分解结构示意图。
如图12-图21所示，在本公开一些实施例中冰箱冷藏箱门11的内衬面上设有翻转梁单元3，其旋转轴记为翻转轴M；翻转梁单元3包括平行于翻转轴M的自由端，其自由端绕翻转轴M旋转；翻转梁单元3位于低压储藏单元15的把手81的前方区域内；即平行于冰箱箱门平面的投影上，翻转梁单元3的投影与低压储藏单元15的投影交叉重叠。其中，如图12-图20所示，翻转梁单元3翻转过程中，垂直于冷藏箱门11方向上，其自由端进入储藏间内的最大位移记为W，门体与壳体处于关闭位置但并未锁紧状态，把手81处于第一位置，把手81最前端与内胆的前端面P之间的距离记为L；L＜W；
以上设置，在低压储藏单元15未锁紧的状态时，能够利用冷藏箱门11关闭过程中翻转梁单元3绕其翻转轴M翻转时与把手81相互作用，以对把手81施加朝向低压储藏单元15的作用力，以对把手81上施加一个向低压储藏单元15移动的扭矩，使把手81向下向内旋转，把手81带动第二配合部旋转，以使第二配合部与第一配合部配合，实现门体与所述壳体的锁定；本公开限定了翻转梁组件与低压储藏单元15的相对位置及把手81的位置，能够在翻转梁单元3的翻转过程来使未锁紧的低压储藏单元15的把手81锁紧，有效避免用户在使用时，因时间紧张、空不出手来等原因忘记锁紧低压储藏单元15而导致的抽气装置(真空泵)频繁工作，从而有效降低噪音和耗电量。
具体的，如图21所示，翻转梁单元3包括整体式门转梁后盖9，门转梁后盖9通过第一门铰链31、第二门铰链32连接于冷藏箱门11上，且门转梁后盖9与两个门铰链之间分别采用扭簧弹性连接；其中，第一门铰链31位于第二门铰链32的上方。门转梁后盖9包括后侧板91和环绕后侧板91设置的前侧板92，前侧板92和后侧板91之间形成容纳腔90，容纳腔90内填充有保温件94；且门转梁后盖9的容纳腔90开口端设有端盖93。
门铰链和门转梁后盖9上均有穿扭簧力臂的通孔，利用扭簧将上下门铰链与门转梁后盖9连接。具体连接如下描述。
第一门铰链31和第二门铰链32均包括与冷藏箱门11固定连接的固定板33及与固定板33相连接的翻转柱30；门转梁后盖9上设有共中心轴线的第一安装孔91a和第二安装孔91b，且靠近第一安装孔91a的位置设有第一固定孔91c，靠近第二安装孔91b的位置设有第二固定孔91d；
将第一门铰链31的翻转柱30安装于门转梁后盖9上第一安装孔91a，第二门铰链32的翻转柱30安装于门转梁后盖9上第二安装孔91b内，以便门转梁后盖9能够绕门铰链的翻转柱30作旋转运动。其中，第一门铰链31的 翻转柱30和第二门铰链32的翻转柱30上均设有第三固定孔34；第一门铰链31与门转梁后盖9通过第一扭簧36连接，第二门铰链32与门转梁后盖9通过第二扭簧37连接；其中，第一扭簧36一端安装于第一固定孔91c内，另一端安装于第一门铰链31上的第三固定孔34内；第二扭簧37一端安装于第二固定孔91d内，另一端安装于第二门铰链32上的第三固定孔34内。门转梁后盖9绕门铰链的翻转柱30作旋转运动时，第一扭簧36和第二扭簧37储存弹性能或释放弹性能，以使门转梁后盖9稳定转动并及时复位。
冰箱的箱体顶壁上设有导向槽13a，翻转梁单元3可与导向槽13a滑动配合以实现翻转梁单元3在垂直于冷藏箱门11的状态和平行于冷藏箱门11的状态之间切换。
具体的，在一些实施例中，冰箱的箱体顶壁上安装有导向座13，导向槽13a开设于导向座13上。
在门转梁后盖9的顶部固设有导向件21，导向件21作为翻转梁单元3的转动部件与导向槽13a相配合以实现翻转梁单元3在垂直于冷藏箱门11的状态和平行于冷藏箱门11的状态之间切换。其中导向槽13a限定了垂直于冷藏箱门11方向上翻转梁单元3的自由端进入储藏间内的最大位移W；即导向槽13a的后槽壁上与内胆2b的前端面P的最大距离为垂直于冷藏箱门11方向上翻转梁单元3的自由端进入所述储藏间内的最大位移W。
在本公开一些实施例中，门转梁后盖9的顶侧板上设有导向孔92a；导向件21包括安装于导向孔92a内的导向块22；导向块22的顶面用于与导向槽13a的槽底接触并滑动配合，导向槽13a的槽底位于同一水平面上，导向块22滑动过程中受压于导向槽13a，即导向块22滑动过程中受压。进一步地，导向件21的高度沿冷藏箱门11的打开方向逐渐增大，即导向块22的顶面的高度沿冷藏箱门11的打开方向逐渐增大。
门转梁后盖9的后侧板91上设有第一限位块91e；导向件21包括位于导向块22底部的基座23，基座23安装于门转梁后盖9形成的容纳腔90内；其中基座23上设有第二限位块，并设有用于安装弹簧27的安装槽26；基座23上的安装槽26位置与门转梁后盖9的后侧板91上的第一限位块91e相对应；弹簧27一端与第一限位块91e固定，另一端与第二限位块固定。
第一门铰链31的翻转柱30上设有导向通孔35；基座23包括位于其底部的导向柱24，且导向柱24安装于第一门铰链31上的导向通孔35内；导向块22于导向槽13a内滑动过程中，导向块22受压于导向槽13a，导向件21受导 向槽13a施加的压力作用向下移动时，导向件21上的导向柱24沿第一门铰链31上的导向通孔35向下移动。导向块22移出导向槽13a后，施加于导向件21上的外力撤去，导向件21在弹簧27的作用下复位。导向件21受到导向槽13a压力作用时可向容纳腔90内部收缩，如此设计可确保冰箱箱门开启过程中比较顺畅，不会出现卡在导向槽13a中的意外情况。
在冷藏箱门11打开的状态下，翻转梁单元3由于扭簧扭力的作用，紧紧贴附于门铰链固定于冷藏箱门11内衬的一侧。
在外力作用下，冷藏箱门11逐渐闭合，达到一定角度后，翻转梁单元3最顶端的导向件21进入导向槽13a内，继续关门过程中，由于导向件21受导向槽13a壁的压力作用开始翻转，扭簧在径向上压缩，当翻转过45°，达到扭簧临界值。之后扭簧开始伸展，与导向槽13a壁的压力共同作用，使翻转梁单元3快速翻转到位，直至冷藏箱门11关闭，此时扭簧扭力被释放，重新达到松弛状态。冷藏箱门11关闭后，翻转梁单元3与冷藏箱门11上设置的封条接触，有效防止冷气由两对开门式的对缝之间外溢。
在低压储藏单元15未锁紧的状态时，冷藏箱门11关闭过程中翻转梁单元3按照以上方式翻转，由于未锁紧状态的把手81前端间隙L小于翻转梁单元3的宽度W,翻转梁单元3翻转过程中与把手81相互作用，以对把手81施加朝向低压储藏单元15的作用力，从而在把手81上施加一个向低压储藏单元15移动的扭矩，使把手81向下向内旋转移动的惯性，，以使第二配合部与第一配合部配合，实现门体与所述壳体的锁定；本公开限定了翻转梁组件与低压储藏单元15的相对位置及把手81的位置，能够在翻转梁单元3的翻转过程来使未锁紧的低压储藏单元15的把手81锁紧，有效避免用户在使用时，因时间紧张、空不出手来等原因忘记锁紧低压储藏单元15而导致的抽气装置(真空泵)频繁工作，从而有效降低噪音和耗电量。
以上所述，仅是本公开的较佳实施例而已，并非是对本发明作其它形式的限制，任何熟悉本专业的技术人员可能利用上述揭示的技术内容加以变更或改型为等同变化的等效实施例应用于其它领域，但是凡是未脱离本发明技术方案内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与改型，仍属于本发明技术方案的保护范围。

Claims (10)

  1. 冰箱，其特征在于：包括：
    箱体，限定隔热的由内胆围成的储藏间；所述箱体包括箱门；
    低压储藏单元，收容于所述储藏间内，其内可被抽空气形成低于所述箱体外部大气压的气压以利于食物的保鲜；
    抽气装置，与所述低压储藏单元相连通，用于将所述低压储藏单元内的空气抽出；
    翻转梁单元，设于所述箱门上，且位于所述低压储藏单元前方区域内；所述翻转梁单元包括平行于其翻转轴M的自由端，其自由端绕翻转轴M旋转以实现翻转梁单元在垂直于箱门的状态和平行于箱门的状态之间切换；
    所述低压储藏单元包括：
    壳体，限定具有用于取放物品的取放口的储藏室；
    门体，用以打开或关闭所述取放口；
    第一配合部，设于所述壳体的相对两端；
    第二配合部，可旋转地设于所述门体的两端，用于与相应侧的所述第一配合部配合实现所述门体的锁定与解锁；
    把手，位于所述门体前侧，且其末端与相应侧的所述第二配合部固定连接；
    其中，垂直于所述箱门方向上，所述翻转梁单元的自由端进入所述储藏间内的最大位移记为W；所述门体与壳体处于关闭位置但并未锁紧状态时，所述把手最前端与所述内胆的前端面P之间的距离记为L；L＜W；
    所述箱门关闭过程中，所述翻转梁单元绕其翻转轴M翻转，并对并未锁紧状态的所述把手施加朝向所述低压储藏单元的作用力，所述把手带动所述第二配合部旋转，以使所述第二配合部与所述第一配合部配合，实现所述门体与所述壳体的锁定。
  2. 根据权利要求1所述的冰箱，其特征在于：所述箱门上设有第一门铰链，所述第一门铰链包括与所述箱门固定连接的固定板及与所述固定板相连接的翻转柱；
    所述翻转梁单元包括门转梁后盖，所述门转梁后盖上部设有安装所述翻转柱的第一安装孔；所述门转梁后盖与所述第一门铰链之间通过扭簧弹性连接。
  3. 根据权利要求2所述的冰箱，其特征在于：所述冰箱的箱体顶壁上设有导向槽；
    所述门转梁后盖的顶部固设有导向件，所述导向件与所述导向槽相配合以实现所述翻转梁单元在垂直于所述箱门的状态和平行于所述箱门的状态之间切换。
  4. 根据权利要求3所述的冰箱，其特征在于：所述门转梁后盖包括后侧板和环绕后侧板设置的前侧板，所述前侧板和后侧板共同限定出容纳腔；所述后侧板上设有第一限位块；
    所述导向件包括位于导向块底部的基座，所述基座安装于所述容纳腔内；所述基座上设有第二限位块，并设有用于安装弹簧的安装槽；所述安装槽的位置与所述门转梁后盖的后侧板上的第一限位块相对应；所述弹簧一端与第一限位块固定，另一端与第二限位块固定。
  5. 根据权利要求4所述的冰箱，其特征在于：所述第一门铰链的翻转柱上设有导向通孔；所述基座包括位于其底部的导向柱，且所述导向柱安装于所述第一门铰链上的导向通孔内，所述导向柱能够沿所述导向通孔作往复直线运动。
  6. 根据权利要求4所述的冰箱，其特征在于：所述门转梁后盖的容纳腔内填充有保温件；且所述门转梁后盖的容纳腔开口端设有端盖。
  7. 根据权利要求1所述的冰箱，其特征在于：
    所述第一配合部包括锁定部，所述锁定部包括竖直向下的锁定壁和倾斜设置的导向壁；
    所述第二配合部包括锁定板，所述锁定板可绕所述旋转轴X转动，所述旋转轴X的轴线水平方向设置并与所述把手具有设定距离，所述锁定板面向所述壳体侧壁的一侧设有凸块，所述锁定板在所述把手的驱动下绕所述旋转 轴X转动时，所述凸块沿导向壁滑移至所述锁定壁后侧实现所述门体与所述壳体的锁定。
  8. 根据权利要求7所述的冰箱，其特征在于：所述凸块与所述把手分别位于所述旋转轴的两侧。
  9. 根据权利要求7或8所述的冰箱，其特征在于：所述低压储藏单元还包括：
    设置在所述门体上的充气通道，所述充气通道用于连通所述低压储藏单元的内外两侧；
    关闭或打开所述充气通道的泄压装置，所述泄压装置包括：
    与所述第二配合部联动的杆体，所述杆体的两端分别固定于对应侧的所述锁定板上，所述杆体与所述凸块分别位于所述旋转轴的两侧；
    固定连接于所述杆体上旋转板，所述旋转板的旋转轴线与所述第二配合部的旋转轴线重合；
    固定于所述旋转板上的泄压件，所述泄压件用于关闭或打开所述充气通道；
    所述第二配合部在所述把手的驱动下绕所述旋转轴X转动时，带动所述杆体以及旋转板同轴转动，所述泄压件关闭所述充气通道。
  10. 根据权利要求1-8其中任一项所述的冰箱，其特征在于：所述冰箱包括：
    抽气装置，与所述低压储藏单元相连通，用于将所述低压储藏单元内的空气抽出；
    控制单元，控制所述抽气装置对所述低压储藏单元进行抽真空；
    位置检测装置，其设于所述壳体上，用于与所述第二配合部配合检测所述门体的锁定与解锁状态；
    所述第二配合部在所述把手驱动下旋转，以与所述第一配合部配合，实现所述门体与所述壳体的锁定，并触发所述位置检测装置，所述位置检测装置发送控制信号至所述控制单元，所述控制单元根据控制信号控制所述抽气 装置对所述低压储藏单元进行抽真空。
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