WO2022022087A1 - 一种冰箱 - Google Patents

一种冰箱 Download PDF

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Publication number
WO2022022087A1
WO2022022087A1 PCT/CN2021/099156 CN2021099156W WO2022022087A1 WO 2022022087 A1 WO2022022087 A1 WO 2022022087A1 CN 2021099156 W CN2021099156 W CN 2021099156W WO 2022022087 A1 WO2022022087 A1 WO 2022022087A1
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WO
WIPO (PCT)
Prior art keywords
air
vacuum
door body
air extraction
pipe
Prior art date
Application number
PCT/CN2021/099156
Other languages
English (en)
French (fr)
Inventor
杨春
赵振雷
鲍雨锋
张建
赵兴
王海燕
刘铁伟
王吉祥
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
Priority claimed from CN202010761004.7A external-priority patent/CN114061199A/zh
Priority claimed from CN202010762982.3A external-priority patent/CN114061202A/zh
Priority claimed from CN202010757175.2A external-priority patent/CN114061216B/zh
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 WO2022022087A1 publication Critical patent/WO2022022087A1/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
    • 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

Definitions

  • the present application relates to the technical field of household appliances, in particular to a refrigerator.
  • some embodiments of the present application provide a refrigerator comprising:
  • the shell is provided with a low-temperature storage room inside;
  • the door body is arranged on the shell, and a foam layer is arranged inside the door body;
  • the protective shell is arranged inside the door body;
  • the vacuum preservation box is arranged on the side wall surface of the door body;
  • the base set on the side wall surface of the door body, and the base is set at the connection between the vacuum fresh-keeping box and the door body, and the installation position of the vacuum fresh-keeping box is limited by the base;
  • the vacuum system is set inside the door body, and one end of the vacuum system is set inside the protective shell , the other end of the vacuum system is connected with the vacuum fresh-keeping box, and the vacuum system is used to extract the gas in the vacuum fresh-keeping box;
  • the pressure relief valve is set inside the protective shell, the pressure relief valve is fixedly connected with the vacuum system, and the pressure relief valve Internal pressure relief in vacuum system.
  • some embodiments of the present application provide a refrigerator, comprising: a box body defining a low temperature storage compartment with thermal insulation; a door body rotatably provided on the box body to open or close the low temperature storage compartment; The top of the door body is provided with a accommodating part; the vacuum preservation box is arranged on the side of the door body close to the low-temperature storage room, and the air can be evacuated to form a pressure lower than the atmospheric pressure outside the refrigerator to facilitate the preservation of food; an air extraction device, which includes The vacuum pump, the exhaust pipe and the intake pipe connected with the vacuum pump are arranged in the accommodating part; the exhaust joint is connected with the intake pipe through the exhaust pipe; The box is connected or separated; the pressure relief unit is arranged in the accommodating part and is located at one end of the vacuum pump close to the intake pipe; a three-way valve, which includes a first branch pipe and a second branch pipe of rubber material that communicate with each other; wherein, one end of the first branch pipe It is connected with the intake pipe, the other end is connected with
  • a refrigerator comprising: a box body, a door body disposed on the box body, and a vacuum manufacturing device disposed on the door body, the vacuum manufacturing device comprising: an air extraction joint, which It is hinged on the door body; the vacuum pump is arranged in the door body, and the vacuum pump is connected with the air extraction joint through the air extraction pipeline; the controller is arranged in the door body, and the controller is connected with the vacuum pump to control the work of the vacuum pump; the air pressure sensor The air pressure sensor is connected to the controller; the pressure relief valve is connected to the air extraction pipe through a three-way pipe, and one end of the three-way pipe connected to the pressure relief valve is provided with a bending part, and the bending part surrounds The suction pipeline is set, and the pressure relief valve is connected with the controller.
  • FIG. 1 is a schematic diagram of the overall structure of a refrigerator according to some embodiments of the present application.
  • FIG. 2 is a schematic diagram of the overall structure of a refrigerator according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a three-way valve according to some embodiments of the present application.
  • FIG. 4 is a schematic structural diagram of a refrigerator according to some embodiments of the present application.
  • FIG. 5 is a schematic structural diagram of a refrigerator according to some embodiments of the present application.
  • FIG. 6 is a schematic structural diagram of a refrigerator according to some embodiments of the present application.
  • FIG. 7 is a schematic structural diagram of a refrigerator according to some embodiments of the present application.
  • FIG. 8 is a schematic structural diagram of a vacuum system according to some embodiments of the present application.
  • FIG. 9 is a schematic structural diagram of a vacuum fresh-keeping box according to some embodiments of the present application.
  • FIG. 10 is a schematic structural diagram of an air extraction pipeline according to some embodiments of the present application.
  • FIG. 11 is a control principle diagram of a refrigerator according to some embodiments of the present application.
  • FIG. 12 is a schematic diagram of the overall structure of a refrigerator according to some embodiments of the present application.
  • FIG. 13 is a schematic structural diagram of a separated state of an air extraction joint of a refrigerator and a vacuum preservation box according to some embodiments of the present application;
  • FIG. 14 is a schematic structural diagram of a state in which an air extraction joint of a refrigerator is connected to a vacuum preservation box according to some embodiments of the present application;
  • 15 is a schematic diagram of the connection structure of the air extraction pipeline and the air extraction joint of the refrigerator according to some embodiments of the present application;
  • FIG. 16 is a schematic diagram of the top structure of a door of a refrigerator according to some embodiments of the present application.
  • 17 is a schematic diagram of the assembly structure of a vacuum pump, an air extraction pipeline and a three-way valve of a refrigerator according to some embodiments of the present application;
  • FIG. 18 is a schematic diagram of the assembly structure of a vacuum pump, an air extraction pipeline and a three-way valve of a refrigerator from another perspective according to some embodiments of the present application;
  • FIG. 19 is a schematic diagram of relative positions of a vacuum pump, a three-way valve and a pressure relief unit of a refrigerator according to some embodiments of the present application;
  • 20 is a schematic diagram of an assembly structure of a vacuum pump, a three-way valve and a pressure relief unit of a refrigerator according to some embodiments of the present application;
  • 21 is a schematic diagram of the assembly structure of a vacuum pump, a three-way valve, a pressure relief unit and an air extraction pipeline of a refrigerator according to some embodiments of the present application;
  • FIG. 22 is a schematic view of the assembly structure of a vacuum pump, a three-way valve, a pressure relief unit and an air extraction pipeline of a refrigerator according to some embodiments of the present application from another perspective;
  • FIG. 23 is a schematic diagram of the assembly structure of a three-way valve and an air extraction duct of a refrigerator according to some embodiments of the present application;
  • 24 is a partial structural schematic diagram of an air extraction joint of a refrigerator according to some embodiments of the present application.
  • FIG. 25 is another schematic structural diagram of an air extraction joint of a refrigerator according to some embodiments of the present application.
  • FIG. 26 is a partial structural schematic diagram of a vacuum preservation box of a refrigerator according to some embodiments of the present application.
  • FIG. 27 is another schematic structural diagram of a vacuum fresh-keeping box of a refrigerator according to some embodiments of the present application.
  • FIG. 28 is a schematic time sequence diagram of a vacuum evacuation control method for a refrigerator according to some embodiments of the present application.
  • FIG. 29 is a schematic structural diagram of a refrigerator according to some embodiments of the present application.
  • FIG. 30 is a schematic structural diagram of a vacuum manufacturing apparatus according to some embodiments of the present application.
  • FIG. 31 is a schematic diagram of a control principle of a vacuum manufacturing apparatus according to some embodiments of the present application.
  • Figure 32 is a partial enlarged view at B in Figure 13;
  • Fig. 33 is the partial enlarged view of A place in Fig. 13;
  • 34 is a schematic cross-sectional view of an air extraction joint according to some embodiments of the present application.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as “first” or “second” may expressly or implicitly include one or more of that feature. In the description of this application, unless stated otherwise, "plurality" means two or more.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • installed should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • FIG. 1 is a schematic diagram of the overall structure of a refrigerator according to some embodiments of the present application.
  • the refrigerator includes a housing and a door 110 , a low-temperature storage room is arranged inside the housing, a low-temperature storage space is formed in the low-temperature storage room, and the door 110 is rotatably connected to the housing.
  • the foam layer 120 is used to store or take out food or items in the refrigerator.
  • the door body 110 is provided with a display panel, a fresh-keeping box, a vacuum joint and an air extraction pipeline 330 system, and the vacuum fresh-keeping box 140 is arranged inside the door body 110.
  • the vacuum fresh-keeping box 140 is arranged inside the door body 110.
  • food and articles are placed in the vacuum fresh-keeping box 140 to achieve freshness preservation. .
  • the display panel of the door body 110 is provided with a vacuum degree display, which can monitor the vacuum degree in the vacuum preservation box 140 .
  • the vacuum degree of the vacuum preservation box is -20KPA
  • the control switch 380 turns on vacuuming or the signal turns on the vacuuming
  • the display terminal displays the vacuuming situation in real time
  • the vacuum degree is from 0KPA to -10KPA and then to - 20KPA stop.
  • FIG. 2 is a schematic diagram of an overall structure of a refrigerator according to an embodiment of the present application.
  • a refrigerator which includes: a protective shell 130 disposed inside the door body 110 , and the protective shell 130 is located at the top of the door body 110 .
  • the protective shell 130 is a rectangular cavity.
  • the protective shell 130 is composed of a side plate, a front plate, a rear plate and a bottom plate.
  • the top of the protective shell 130 is also provided with a top plate. .
  • the vacuum pump 320, the hydraulic valve and other organizational components are fixed by the protective shell 130, and at the same time play a protective role.
  • the vacuum fresh-keeping box 140 is disposed on the inner sidewall surface of the door body 110 .
  • FIG. 9 is a schematic structural diagram of a vacuum preservation box according to some embodiments of the present application.
  • the vacuum preservation box 140 is composed of an upper cover 141, a lower cover 142, a sealing strip 143 and a fixing buckle 144; the lower cover 142 is arranged on the base 150, and the upper cover 141 is arranged on the At the top of the lower cover 142 , the sealing strip 143 is disposed inside the upper cover 141 , and the sealing strip 143 is attached to the top of the lower cover 142 , and the fixing buckle 144 is disposed on the upper cover 141 At both ends, the bottom end of the fixing buckle 144 is connected with the lower cover 142 .
  • the vacuum preservation box 140 is used to improve the fresh-keeping effect of food materials, and the decay of the food materials and articles is delayed, the sealing between the upper cover 141 and the lower cover 142 is increased by the sealing strip 143, and the vacuum preservation box 140 is increased by the fixing buckle 144. overall stability.
  • a base 150 is disposed on the inner side wall surface of the door body 110 , and the base 150 is disposed at the connection between the vacuum preservation box 140 and the door body 110 .
  • the base 150 is composed of a bottom plate and a side plate, and a connecting component is provided at the connection between the base 150 and the door body 110 .
  • the vacuum fresh-keeping box 140 is fixed by the base 150 to define the installation position of the vacuum fresh-keeping box 140 , and the connection between the base 150 and the door body 110 is increased through the connecting assembly.
  • a vacuum system is arranged inside the door body 110 , one end of the vacuum system is arranged inside the protective shell 130 , and the other end of the vacuum system is connected to the door body 110 .
  • the vacuum fresh-keeping box 140 is connected.
  • the vacuum system is composed of a suction pipe 330 , a vacuum pump 320 , a suction joint 310 and a control switch 380 .
  • the suction pipe 330 is arranged inside the door body 110 , and the suction pipe 330 is in contact with the foam layer 120 .
  • the suction pipe 330 is connected with the pressure relief valve 360, the vacuum pump 320 is arranged inside the protective shell 130, the vacuum pump 320 is fixedly connected with the suction pipe 330, the suction joint 310, It is arranged on the vacuum fresh-keeping box 140, one end of the suction joint 310 is rotatably connected with the top of the vacuum fresh-keeping box 140, and the other end of the suction joint 310 is connected with the suction pipe 330, and the control switch 380, It is arranged at the top of the air extraction joint 310 .
  • the vacuum system is used to extract the gas in the vacuum fresh-keeping box 140
  • the exhaust pipe 330 is used to guide the direction of the gas inside the vacuum fresh-keeping box 140
  • the exhaust joint 310 is controlled by the control switch 380, and the exhaust joint 310 connects the vacuum fresh-keeping box 140 with the air extraction pipeline 330, and starts the vacuum pump 320, thereby completing the vacuuming process.
  • FIG. 4 is a schematic structural diagram of a refrigerator according to some embodiments of the present application
  • FIG. 5 is a schematic structural diagram of a refrigerator according to some embodiments of the present application
  • FIG. 6 is a schematic structural diagram of a refrigerator according to some embodiments of the present application
  • FIG. 8 is a schematic structural diagram of a vacuum system according to some embodiments of the application.
  • a pressure relief valve 360 is disposed inside the protective shell 130 , and the pressure relief valve 360 is fixedly connected to the vacuum system.
  • the pressure inside the vacuum system is released through the pressure release valve 360 , thereby reducing the pressure inside the air extraction pipeline 330 , thereby facilitating the opening of the vacuum fresh-keeping box 140 .
  • FIG. 3 is a schematic structural diagram of a three-way valve according to some embodiments of the present application.
  • a three-way valve 350 is disposed inside the protective shell 130 , and one end of the three-way valve 350 is fixedly connected to the air extraction pipe 330 , and the three-way valve 350 The other end is fixedly connected to the vacuum pump 320 , and the three-way valve 350 and the pressure relief valve 360 are connected to each other.
  • the three-way valve 350 is made of silicone material, thereby improving the plasticity of the three-way valve 350 .
  • connection between the pressure relief valve 360 and the exhaust pipe 330 is increased through the three-way valve 350 , and the installation position of the pressure relief valve 360 is limited by the three-way valve 350 .
  • a silicone spring 410 is disposed inside the door body 110 , and the silicone spring 410 is sleeved on the vacuum pump 320 , and the silicone spring 410 defines the The installation position of the vacuum pump 320 .
  • the inner side of the silicone spring 410 is provided with a concave portion, and the outer side of the silicone spring 410 is provided with a protruding portion.
  • the vacuum pump 320 can be effectively fixed, and the vibration effect of the vacuum pump 320 can be effectively suppressed, and the contact area of vibration transmission can be minimized, and the contact area is small.
  • the area where the contact area is large is used to ensure the strength.
  • the contact part of the silicone spring 410 and the inner wall of the protective shell 130 forms a cavity, which acts as a spring, so that the vibration of the vacuum pump 320 is completely attenuated when it is working.
  • the silicone sleeve 420 is disposed inside the door body 110 , and the silicone sleeve 420 is sleeved on the pressure relief valve 360 .
  • the silicone sleeve 420 has a rectangular cavity structure, and the inner space of the silicone sleeve 420 is matched with the pressure relief valve 360 .
  • the silicone sleeve 420 prevents the pressure relief valve 360 from transmitting the vibration of the vacuum pump 320 to the surroundings.
  • a connecting block 430 is disposed inside the door body 110 , the connecting block 430 is sleeved on the air suction pipe 330 , and the connecting block 430 is connected to the on the foam layer 120.
  • the connecting block 430 has a rectangular block-like structure.
  • the connecting block 430 is provided with a circular through hole, and the circular through hole and the air suction pipe 330 are matched with each other.
  • the air suction pipe 330 is fixed on the door body 110 by the connecting block 430 .
  • FIG. 10 is a schematic structural diagram of an air extraction pipeline according to some embodiments of the present application.
  • a limit buckle 440 is disposed inside the door body 110 , and the limit buckle 440 is fixedly connected to the side wall surface of the protective shell 130 .
  • the limit buckle 440 is sleeved on the air extraction pipe 330 , and the limit buckle 440 is abutted with one end of the three-way valve 350 .
  • the limit buckle 440 is composed of a buckle, a base, a reinforcing rib and a casing.
  • the buckle is arranged at one end of the base, the casing is arranged at the other end of the base, the reinforcing rib is fixedly installed on the base, and the reinforcing rib is fixed to the outer wall surface of the casing. connect.
  • the overall stability of the limit buckle 440 is improved by the base, the protective shell 130 is fixed inside the door body 110 by the cooperation of the buckle and the base, the air extraction pipe 330 is protected by the sleeve, and the sleeve and the base are increased by the reinforcing ribs. stability between.
  • the other end of the three-way valve 350 is fixedly connected with the vacuum pump 320;
  • the pressure relief valve 360 is fixed inside the protective shell 130 , and the pressure relief valve 360 is fixedly connected to the top of the three-way valve 350 , so as to complete the installation of the pressure relief valve 360 .
  • the control switch 380 When in use, the control switch 380 is controlled, and the rotation of the suction joint 310 is controlled by the control switch 380, so that the suction joint 310 is connected to the vacuum system, the vacuum pump 320 is started, and the gas inside the vacuum preservation box 140 is pumped along the vacuum pump 320. The pipe 330 is drawn out, so that the inside of the vacuum preservation box 140 forms a vacuum state.
  • the pressure relief valve 360 When the vacuum preservation box 140 needs to be depressurized, the pressure relief valve 360 is activated, and air is injected into the air extraction pipe 330 through the pressure relief valve 360, thereby reducing the suction rate.
  • the pressure inside the air duct 330 facilitates the opening of the vacuum preservation box 140 .
  • a pressure relief valve is added, and one end of the pressure relief valve is connected to the air extraction pipeline.
  • the pressure is released through the pressure relief valve to reduce the internal pressure of the air extraction pipeline. pressure, thereby facilitating the opening of the vacuum crisper.
  • Some embodiments of the present application improve the vacuum system, through which the gas inside the vacuum preservation box is extracted, so that the interior of the vacuum preservation box is in a vacuum state, thereby improving the preservation effect of food materials and delaying the decay of food materials and articles.
  • a three-way valve is added, and the three-way valve is arranged at the connection between the air extraction pipeline and the vacuum valve, and the three-way valve improves the connection between the pressure relief valve and the vacuum system, and at the same time enhances the connection between the pressure relief valve and the vacuum system. its tightness.
  • a silicone sleeve is added, the silicone sleeve is sleeved on the pressure relief valve, and the silicone sleeve prevents the pressure relief valve from transmitting the vibration of the vacuum pump to the surroundings.
  • connection block is added, and the connection block is arranged at the connection between the air extraction pipeline and the door body.
  • the connection block increases the connection between the air extraction pipeline and the door body, and effectively reduces the noise generated during vacuuming.
  • a limit buckle is added, and the limit buckle is arranged at the connection between the protective shell and the air extraction pipe, and the stability of the air extraction pipe is improved by the limit buckle, and the The suction pipe is protected to prevent the vibration of the vacuum pump from causing the suction pipe to vibrate together.
  • a silica gel spring is added, and the silica gel spring is sleeved on the vacuum pump.
  • the silica gel spring can effectively suppress the vibration effect of the vacuum pump and reduce noise.
  • FIG. 12 is a schematic diagram of the overall structure of a refrigerator according to some embodiments of the present application.
  • a refrigerator 1 which includes a box body 100 defining a plurality of insulated low-temperature storage compartments to store food and other items.
  • the low-temperature storage compartments are respectively a refrigerating compartment and a freezing compartment; wherein the refrigerating compartment is located at the upper part, and the freezing compartment is located at the bottom.
  • Each low-temperature storage room is provided with its own door; in the present application, the refrigerator compartment 9 is provided with a door 110 with a side-to-side door.
  • the refrigerator 1 has an evaporative refrigeration system forming a closed loop.
  • FIG. 13 is a schematic structural diagram of the separation state of the air extraction joint of the refrigerator and the vacuum preservation box according to some embodiments of the present application
  • FIG. 14 is the structural schematic diagram of the connection state of the air extraction joint of the refrigerator and the vacuum preservation box according to some embodiments of the present application
  • FIG. 15 is a schematic diagram of a connection structure of an air extraction pipeline and an air extraction joint of a refrigerator according to some embodiments of the present application.
  • the door body 110 is provided with a vacuum preservation box 141 , an air extraction device and an air extraction joint 310 .
  • the vacuum preservation box 141 is detachably arranged on the door body 110 and can be kept in a low pressure state.
  • the air extraction device is arranged on the top of the door body 110 , and the air extraction device and the vacuum preservation box 141 are located on the same door body 110 ; form a low pressure state.
  • the suction joint 310 is reversibly arranged on the door body 110, and the suction joint 310 is located on the side of the door body 110 close to the vacuum fresh-keeping box 141; connected or separated.
  • the vacuum preservation box 141 When the vacuum preservation box 141 is connected to the air extraction connector 310 and the air extraction device is activated, the gas in the vacuum preservation box 141 is evacuated, and the vacuum preservation box 141 is in a low pressure state.
  • the pressure in the vacuum preservation box 141 is between a standard atmospheric pressure and an absolute vacuum. Since the air pressure in the vacuum fresh-keeping box 141 is lower than the standard atmospheric pressure, it is also commonly referred to as "vacuum storage" by those skilled in the art, and the state where the air pressure is lower than the standard atmospheric pressure is referred to as a "vacuum state".
  • FIG. 16 is a schematic diagram of the top structure of a door of a refrigerator according to some embodiments of the present application
  • FIG. 17 is a schematic diagram of an assembly structure of a vacuum pump, an air extraction pipeline and a three-way valve of a refrigerator according to some embodiments of the present application
  • FIG. 18 is a schematic diagram of the assembly structure of the refrigerator according to the present application
  • Figure 19 is a schematic diagram of the relative positions of the vacuum pump, the three-way valve and the pressure relief unit of the refrigerator according to some embodiments of the present application
  • 20 is a schematic diagram of the assembly structure of a vacuum pump, a three-way valve, and a pressure relief unit of a refrigerator according to some embodiments of the present application
  • FIG. 17 is a schematic diagram of an assembly structure of a vacuum pump, an air extraction pipeline and a three-way valve of a refrigerator according to some embodiments of the present application
  • FIG. 18 is a schematic diagram of the assembly structure of the refrigerator according to the present application
  • Figure 19 is a schematic diagram
  • 21 is a vacuum pump, a three-way valve, a pressure relief unit, and an air extraction pipeline of a refrigerator according to some embodiments of the present application.
  • 22 is a schematic diagram of the assembly structure of the vacuum pump, three-way valve, pressure relief unit and air extraction pipeline of the refrigerator according to some embodiments of the present application from another perspective;
  • FIG. 23 is a schematic diagram of the refrigerator according to some embodiments of the present application Schematic diagram of the structure of the three-way valve;
  • FIG. 24 is a schematic diagram of the assembly structure of the three-way valve and the exhaust pipe of the refrigerator according to some embodiments of the present application.
  • the top of the door body 110 is provided with an accommodating portion 110 a for accommodating the vacuum pump 320 .
  • the air pumping device includes a vacuum pump 320 and an elastic sleeve 5 ; wherein, the elastic sleeve 5 is sleeved outside the vacuum pump 320 and abuts against the accommodating portion 110 a on the top of the door body 110 to reduce vibration and noise.
  • the vacuum pump 320 is provided with an exhaust pipe 12 and an exhaust pipe; the exhaust pipe includes an intake pipe 11 and an exhaust pipe 330; wherein, one end of the exhaust pipe 330 is communicated with the intake pipe 11, and the other end is communicated with the exhaust joint 310 , so as to communicate with the vacuum preservation box 141 when the suction joint 310 is connected with the vacuum preservation box 141 .
  • the air extraction pipe 330 extends from top to bottom along the door body 110 to the air extraction joint 310 .
  • a pressure relief unit 7 connected with it on the air extraction pipeline, which is used to make the external air enter the air extraction pipeline of the air extraction device after the vacuuming is completed, so as to balance the internal and external air pressure of the air extraction pipeline of the air extraction device, so as to reduce the pressure.
  • the small pressure difference between the inside and outside of the air extraction joint 310 is convenient for the user to turn over the air extraction joint 310 to separate it from the vacuum preservation box 141 .
  • the pressure relief unit 7 is installed in the accommodating portion 110a, and is provided at the connection between the intake pipe 11 and the exhaust pipe 330 .
  • the pressure relief unit 7 , the intake pipe 11 , and the exhaust pipe 330 are connected through a three-way valve 350 .
  • the pressure relief unit 7 includes a pressure relief member 71 , and a vibration damping sleeve 72 is attached to the outer surface of the pressure relief member 71 ; the vibration damping sleeve 72 abuts against the accommodating portion 110 a to reduce vibration and noise.
  • the pressure relief member 71 includes a connecting pipe 71a that communicates with the air extraction pipeline and a vent pipe 71b that communicates with the outside atmosphere. By controlling the switch state of the pressure relief member 71, the connection pipe 71a and the vent pipe 71b can be blocked or communicated, thereby changing the communication state between the air extraction pipeline and the atmosphere to balance the air pressure inside and outside the air extraction pipeline.
  • the three-way valve 350 includes a first branch pipe 350a and a second branch pipe 350b that communicate with each other; wherein, at least the second branch pipe 350b is made of rubber material, that is, the second branch pipe 350b is a rubber pipe;
  • the second branch pipe 350b is made of silicone material, and the three-way valve 350 is formed by molding.
  • One end of the first branch pipe 350a is communicated with the intake pipe 11 , the other end is communicated with the exhaust pipe 330 , and the second branch pipe 350b is communicated with the connecting pipe 71a of the pressure relief unit 7 .
  • the pressure relief unit 7 is arranged in the accommodating portion 110a, and is located at one end of the vacuum pump 5 close to the water inlet pipe 11, and the pressure relief unit 7 is arranged adjacent to the air extraction pipeline.
  • the bottom wall of the accommodating part 110a is provided with a partition plate 17, and the position of the partition plate 17 corresponds to the first branch pipe 350a, so as to divide the end of the accommodating part 110a close to the air intake pipe 11 into the first part Section 110b and second subsection 110c; that is, the first subsection 110b and the second subsection 110c are located on opposite sides of the first branch pipe 350a.
  • the pressure relief unit 7 is installed in the first subsection 110b, and the connection between the second branch pipe 350b and the first branch pipe 350a on the three-way valve 350 is located on the side of the first branch pipe 350a close to the second subsection 110c, that is, in a natural state
  • the second branch pipe 350b is located in the second sub-section 110c.
  • the second branch pipe 350b is bent to communicate with the connecting pipe 71a on the pressure relief unit 7 .
  • the installation method of the air extraction device and the pressure relief unit is as follows: first, as shown in FIG. 23 , connect the end of the air extraction pipe 330 close to the accommodating portion 110a to the end of the first branch pipe 350a; secondly, as shown in FIG. 16- As shown in FIG. 18, the vacuum pump 320 is installed in the accommodating part 110a, and the other end of the first branch pipe 350a is connected with the intake pipe 11; The second branch pipe 350b is bent so that the second branch pipe 350b communicates with the connecting pipe 71a on the pressure relief unit 7 . The above completes the installation of the air extraction device and the pressure relief unit 7 .
  • FIG. 25 is another schematic structural diagram of an air extraction joint of a refrigerator according to some embodiments of the present application. As shown in FIGS. 24-25 , the air extraction joint 310 is provided with a docking port 310a, and the docking port 310a is communicated with the air extraction pipeline 330 .
  • FIG. 26 is a partial structural schematic diagram of a vacuum fresh-keeping box of a refrigerator according to some embodiments of the present application
  • FIG. 27 is another structural schematic diagram of a vacuum fresh-keeping box of a refrigerator according to some embodiments of the present application.
  • the vacuum fresh-keeping box 141 is provided with an air outlet 141a.
  • the suction port 141a is connected with the docking port 310a on the suction joint 310, so that the inner cavity of the vacuum fresh-keeping box 141 is communicated with the suction pipeline during vacuuming.
  • the one-way ventilation unit 15 is provided in the air extraction port 141a.
  • the one-way ventilation unit 15 opens the air extraction port 141a when the air extraction device is pumping air, and seals the air extraction port 141a after the air extraction is completed.
  • the one-way ventilation unit 15 may include a rubber column installed in the air extraction port 141a; when the pressure in the vacuum preservation box 141 is higher than that of the rubber column close to the air extraction joint, the rubber column will move toward the side close to the air extraction joint 310.
  • the air suction port 141a is located on the top of the vacuum fresh-keeping box 141, the suction joint 310 is located above the vacuum fresh-keeping box 141, and when the suction joint 310 is connected to the vacuum fresh-keeping box 141, the opposite The interface 310a corresponds to the suction port 141a.
  • the vacuum pump 320 works, a negative pressure is generated on the side of the one-way ventilation unit 15 close to the suction joint 310, the suction port 141a is opened, the inner cavity of the vacuum fresh-keeping box 141 is communicated with the suction pipe 330, and the gas in the vacuum fresh-keeping box 141 passes through in turn
  • the exhaust pipe 12 may be configured to communicate with the outside atmosphere of the refrigerator, so as to discharge the air extracted from the vacuum fresh-keeping box 141 to the outside of the refrigerator 1 .
  • the pressure on the side of the one-way ventilation unit 15 close to the suction joint 310 is stronger than the pressure on the side close to the inner cavity of the vacuum fresh-keeping box 141, the suction port 141a of the vacuum fresh-keeping box 141 is closed, and the vacuum fresh-keeping box 141 is at a low pressure sealed state.
  • the air extraction joint 310 is still tightly connected with the air extraction port 141a, the pressure in the air extraction pipeline 330 is lower than the external atmospheric pressure.
  • a pressure relief unit 7 that communicates with the air extraction pipeline 330 is provided, and after the vacuuming is completed, the pressure relief unit 7 is opened, and the gas enters the air extraction pipeline 330, so that the pressure inside and outside the air extraction pipeline 330 can be Balanced, it is convenient for the user to flip the air extraction connector 310 to separate it from the vacuum preservation box 141 .
  • the door body 110 is provided with a control switch 380 for enabling the vacuuming operation.
  • a vacuuming time threshold can be set, and when the vacuuming reaches a preset vacuuming time threshold, the vacuuming is ended. Then, the pressure relief unit 7 is opened to allow air to enter the air extraction pipeline of the air extraction device, so as to balance the air pressure inside and outside the pipeline, so as to facilitate the user to flip the air extraction connector 310 to separate it from the vacuum preservation box 141 .
  • a pressure detection unit can also be set on the vacuum preservation box 141 to monitor the pressure in the vacuum preservation box 141 in real time; operate.
  • the refrigerator 1 is provided with a control unit for controlling the working conditions of the air extraction device and the pressure relief unit 7 , so as to realize the automatic control of the vacuuming of the vacuum preservation box 141 . That is, the control unit controls the air extraction device to evacuate the vacuum fresh-keeping box 141 , and controls the pressure relief unit 7 to balance the internal and external air pressures of the air extraction pipeline after the evacuation is completed.
  • a display unit is provided on the side of the door body 110 away from the storage compartment (or other display terminals, such as a mobile phone), so as to display the degree of vacuum in the vacuum preservation box 141 .
  • set the target vacuum degree of the vacuum fresh-keeping box 141 to -20Kpa control the switch 380 or the pressure signal to start the vacuuming operation, and display the vacuuming situation in real time on the display unit, and display the vacuum degree from 0Kpa to -10Kpa and then stop to -20Kpa .
  • set multiple target vacuum degree gears for example, set two target vacuum degree gears -20Kpa, -10pa.
  • the user can pre-set the required target vacuum level; for example, for fruit and vegetable storage, the preset is set to -10Kpa, and for meat and dry food storage, the preset is set to -20Kpa; then when performing the vacuuming operation, the control logic is the same as above. .
  • the above settings allow the user to visualize the degree of vacuum in the vacuum crisper, and on the other hand, enable the user to set a specific target vacuum degree according to the category of the items stored in the vacuum crisper, so that the user can perform differential vacuuming.
  • control switch 380 or the pressure detection unit can be used as the trigger unit when the refrigerator is vacuumed; the refrigerator can also be provided with a timing unit, that is, the timing unit or the pressure detection unit can be used as a monitoring unit for monitoring the vacuuming process when the refrigerator is vacuumed. unit.
  • the monitoring unit monitors whether the condition for stopping vacuuming is reached, when the preset condition is reached, the vacuuming is stopped, and the monitoring unit feeds back a signal of ending vacuuming to the control unit.
  • the vacuum pump 320 can be set to stop working when the working time of the vacuum pump 320 reaches the preset vacuuming time threshold, and the timing unit feeds back a vacuuming end signal to the control unit.
  • the monitoring unit is set as a pressure detection unit.
  • the pressure detection unit detects that the air pressure in the vacuum fresh-keeping box 141 reaches a preset end air pressure threshold, the vacuum pump 320 stops working, and the pressure detection unit feeds back a signal of ending vacuuming to the control unit.
  • the pressure detection unit 14 can be set to always monitor the air pressure in the vacuum preservation box 141, so as to use the pressure signal as a triggering condition for opening or ending vacuuming; During the process, the air pressure of the vacuum preservation box 141 can be detected. As shown in FIG. 11 , the pressure detection unit 14 is connected with the air extraction pipeline of the air extraction device. The air pressure in the vacuum fresh-keeping box 141 cannot be effectively detected, so in this setting, only the pressure signal is used as the trigger condition for ending the vacuuming, and it is not suitable as the triggering condition for starting the vacuuming. In its specific design, the control logic is limited according to the actual setting.
  • FIG. 28 is a schematic time sequence diagram of a vacuum evacuation control method for a refrigerator according to some embodiments of the present application. As shown in Figure 28, it includes the following steps:
  • the air extraction connector 310 is connected to the vacuum preservation box 141 , and the user triggers the vacuum extraction operation through the control switch 380 . It can also be set that the air suction joint 310 is connected to the vacuum preservation box 141, and the pressure detection unit detects that the air pressure in the vacuum preservation box 141 reaches a preset opening air pressure threshold.
  • control unit controls the vacuum pump 320 to evacuate, and the monitoring unit monitors the evacuation state
  • the monitoring unit monitors whether the condition for stopping vacuuming is reached, when the preset condition is reached, the vacuuming is stopped, and the monitoring unit feeds back a signal for ending the vacuuming to the control unit.
  • control unit controls the pressure relief unit 7 to open, and gas enters the evacuation pipeline to balance the internal and external air pressures of the evacuation pipeline.
  • the above control method for evacuation of the refrigerator can release the pressure of the evacuation pipeline of the evacuation device at the first time after evacuation, so as to facilitate the user to flip the evacuation joint 310 to separate it from the vacuum preservation box 141 .
  • the pressure relief unit 7 and the vacuum pump 320 are both arranged in the accommodating portion 110a at the top of the door body 110 , and the air inlet pipe 11 , the air extraction pipe 330 and the pressure relief unit 7 are connected through the three-way valve 350 , wherein the three-way valve 350 is connected to the pressure relief unit 7 .
  • the second branch pipe 350b connecting the valve 350 to the pressure relief unit 7 is made of rubber material, so as to be able to communicate with the pressure relief unit 7 by bending during installation.
  • the above arrangement of the three-way valve can make full use of the space of the accommodating portion 110a, and has a simple structure, compact assembly and convenient connection.
  • FIG. 29 is a schematic structural diagram of a refrigerator according to some embodiments of the present application.
  • the refrigerator of this embodiment includes a box body 100 , a door body 110 arranged on the box body 100 , and a vacuum manufacturing device 300 arranged on the door body 110 .
  • the box body 100 has a plurality of compartments for storing articles.
  • the door body 110 is hinged on the box body 100 to realize the opening and closing of the box body 100.
  • the door body 110 can be a hollow structure to have a certain storage capacity. space.
  • FIG. 30 is a schematic structural diagram of a vacuum manufacturing apparatus according to some embodiments of the present application.
  • the vacuum manufacturing apparatus 300 includes a suction joint 310 , a vacuum pump 320 , a controller 340 and an air pressure sensor 351 .
  • the air extraction joint 310 is used to cooperate with the vacuum preservation box 141 so as to be able to extract air from the vacuum preservation box 141 .
  • the air extraction joint 310 is hinged on the door body 110 , and when the vacuum preservation box 141 needs to be evacuated, the air extraction joint 310 can be turned outward to match with the vacuum preservation box 141 .
  • the air extraction connector 310 can be turned over to the direction close to the door body 110 for storage, so as to prevent the air extraction connector 310 from occupying the storage space of the refrigerator when idle, thereby improving the space utilization rate of the refrigerator.
  • the vacuum pump 320 is disposed in the door body 110 and is connected to the suction port through the suction pipe 310 .
  • the air extraction duct 310 is also arranged in the door body 110 to avoid occupying the storage space of the refrigerator, and to prevent the air extraction duct 310 from being exposed and easily damaged, thereby reducing the maintenance cost.
  • the controller 340 is also disposed in the door body 110 and connected to the vacuum pump 320 , and the controller 340 is used to control the operation of the vacuum pump 320 .
  • the controller 340 can control the vacuum pump 320 to start pumping, so as to realize the vacuum preservation of the vacuum preservation box 141 .
  • the controller 340 can control the vacuum pump 320 to stop working, so as to maintain the vacuum state in the vacuum preservation box 141 .
  • the controller 340 may be any one of the microcontroller 340 or the programmable logic controller 340 to control the vacuum pump 320 .
  • the air pressure sensor 351 may be disposed on the air extraction pipe 310 for detecting the air pressure in the air extraction pipe 310 .
  • the air pressure sensor 351 is connected to the controller 340, so as to be able to feed back the detected air pressure value to the controller 340, so that the controller 340 can perform corresponding control according to the air pressure value.
  • the corresponding air pressure threshold may be set according to the type of the stored items. For example, for meat and dry goods, the air pressure threshold may be set to -20kPa, and for fruits and vegetables, the air pressure threshold may be set to - 10kPa.
  • the air pressure in the vacuum fresh-keeping box 141 can be controlled correspondingly to achieve the best fresh-keeping effect.
  • the controller 340 controls the vacuum pump 320 to stop working; if it is meat or dry food, when the air pressure sensor 351 detects the air pressure in the air extraction pipeline When the air pressure in 310 reaches -20kPa, the controller 340 controls the vacuum pump 320 to stop working.
  • FIG. 31 is a schematic diagram of a control principle of a vacuum manufacturing apparatus according to some embodiments of the present application.
  • the refrigerator further includes a display device 370 , the display device 370 may be disposed on the door body 110 , and the display device 370 is connected to the controller 340 .
  • the controller 340 can display it on the display device 370 , so that the user can intuitively know the air pressure in the air extraction pipe 310 through the display device 370 , and the air pressure in the vacuum manufacturing device 300 is affected.
  • the working situation has a certain understanding, which enhances the interaction between the user and the refrigerator.
  • the display device 370 may be any one of a CRT display, an LCD display, an LED display, or a 3D display, or other existing display devices, which are not specifically limited in this application.
  • the display device 370 is further configured with an input device, and the input device is used to adjust the air pressure in the air extraction pipe 310 .
  • the input device may be an input keyboard or a touch screen input device, etc., and the input device is connected to the controller 340. Therefore, after knowing the air pressure in the air extraction pipe 310 through the display device 370, the user can control the air pressure in the air extraction pipe 310 in real time through the input device.
  • the air pressure to be adjusted can be input through the input device, and the controller 340 controls the vacuum pump 320 to work according to the target air pressure input by the input device, so as to achieve the purpose of adjusting the air pressure of the air extraction pipeline 310, which is convenient for the user to perform real-time operation on it. control.
  • the vacuum manufacturing apparatus 300 further includes a control switch 380 , which is connected to the controller 340 , and a user can control the vacuum manufacturing apparatus 300 to be turned on and off through the control switch 380 .
  • a control switch 380 which is connected to the controller 340 , and a user can control the vacuum manufacturing apparatus 300 to be turned on and off through the control switch 380 .
  • the user can control the vacuum manufacturing device 300 to start working through the control switch 380, and the controller 340 can vacuumize the vacuum preservation box 141 according to a preset program. If vacuum preservation is not required, the user The vacuum manufacturing apparatus 300 can be controlled to be turned off through the control switch 380 to reduce power consumption.
  • Fig. 32 is a partial enlarged view of B in Fig. 30.
  • the door body 110 is provided with a hinge seat 390, and the air extraction joint 310 is hinged to the On the hinge seat 390, the air suction joint 310 can be turned over with the horizontal direction as the axis.
  • the air extraction joint 310 When the air extraction joint 310 is turned outward, it is in the working state of the air extraction joint 310, so that the air extraction joint 310 can cooperate with the vacuum preservation box 141 to extract the air in the vacuum preservation box 141, and the extraction is carried out from top to bottom, which can prevent vacuum
  • the items in the fresh-keeping box 141 block the air extraction holes to ensure the air extraction efficiency of the air extraction joint 310; when the air extraction joint 310 is turned upwards to be close to the hinge seat 390, the air extraction joint 310 is in a non-working state, and when no vacuum is required During preservation, the air extraction joint 310 can be turned upwards, so as to reduce the storage space of the refrigerator occupied by the air extraction joint 310 and improve the space utilization rate of the refrigerator.
  • a magnetic member 311 may be provided on the top of the air extraction joint 310 .
  • the magnetic member 311 can be used for adsorption on the door body 110, so as to realize the fixing of the air extraction connector 310 in the non-working state.
  • control switch 380 can be arranged on the hinge base 390 , and the two are combined.
  • the control switch 380 on the hinge base 390 can be used. To control the vacuum manufacturing apparatus 300 to start, there is no need to set it elsewhere, which is convenient for the user to control.
  • the control switch 380 may be a proximity switch.
  • the proximity switch detects that the suction joint 310 is approaching (that is, in a non-working state), and can control the vacuum manufacturing device 300 off to reduce power consumption.
  • the proximity switch detects that the air extraction joint 310 is turned outward and away from the hinged seat 390 (that is, in a working state)
  • the vacuum manufacturing apparatus 300 can be controlled to be turned on to perform vacuum extraction. Thereby, automatic control of the vacuum manufacturing apparatus 300 can be realized without manual participation.
  • a limiting portion 391 is provided on the hinge seat 390 to limit the rotation range of the air extraction joint 310 to prevent the air extraction joint 310 from being overturned and causing the suction
  • the damage to the gas joint 310 is difficult to control.
  • the limiting portion 391 can be a baffle plate located below the air extraction joint 310 and extending from bottom to upward, so that when the air extraction joint 310 is in the working state, it can abut against the lower surface of the air extraction joint 310, so as to move toward the air extraction joint 310.
  • the suction joint 310 provides a support force to limit the rotation range of the suction joint 310 . Further, the rotation range of the suction joint 310 can be limited to 0° to 90°, so that the suction joint 310 can be parallel to the horizontal plane in the working state, and the good cooperation between the suction joint 310 and the vacuum fresh-keeping box 141 is ensured.
  • the air extraction joint 310 includes an air inlet 312 , an air outlet 313 and an air cavity 314 disposed between the air inlet 312 and the air outlet 313 .
  • One end of 310 is connected to the air outlet 313
  • the other end of the air suction pipe 310 is connected to the vacuum pump 320 .
  • the diameter of the air inlet 312 gradually decreases along the air intake direction. Therefore, when the air in the vacuum preservation box 141 is extracted, the extracted air can be guided to ensure the suction force of the air extraction joint 310.
  • the size of the air inlet 312 is too large, so that the suction force of the air suction joint 310 is scattered and the suction effect is poor.
  • the air suction joint 310 is provided with a sealing member, and the sealing member is disposed along the circumferential direction of the air inlet 312 and surrounds the air inlet 312 .
  • the sealing member is used to ensure the air tightness between the suction joint 310 and the vacuum fresh-keeping box 141 when the suction joint 310 is matched with the vacuum fresh-keeping box 141 , thereby ensuring the suction effect of the suction joint 310 .
  • Fig. 33 is a partial enlarged view of part A in Fig. 30.
  • the air pressure sensor 351 is arranged at one end of the suction pipe 310 close to the vacuum pump 320. It should be understood that when the suction joint 310 is pumping air, due to the The air duct 310 is in communication with the vacuum fresh-keeping box 141 , and the air in the vacuum fresh-keeping box 141 circulates along the air extraction duct 310 under the action of the vacuum pump 320 . If the air pressure sensor 351 is disposed near one end of the air extraction connector 310 , when the air pressure sensor 351 detects that the air pressure value reaches the air pressure threshold, the controller 340 controls the vacuum pump 320 to stop working.
  • the air pressure sensor 351 is located in the door body 110 to prevent the air pressure sensor 351 from occupying the storage space of the refrigerator.
  • the air pressure sensor 351 can be connected to the air extraction pipeline 310 through a three-way valve to ensure the airtightness of the installation position of the air pressure sensor 351 and prevent damage to the air extraction pipeline 310 and affect the air tightness of the air extraction pipeline 310 .
  • the vacuum manufacturing apparatus 300 further includes a pressure relief valve 360 .
  • the pressure relief valve 360 is disposed on the air extraction pipe 310 and located inside the door body 110 . After the vacuum preservation box 141 is evacuated, due to the excessive negative pressure in the exhaust pipe 310 , the air extraction joint 310 and the vacuum preservation box 141 are not easily separated, and it is inconvenient for the user to take the vacuum preservation box 141 .
  • the controller 340 can control the pressure relief valve 360 to work, so as to release the vacuum state in the exhaust pipe 310 .
  • the controller 340 can control the pressure relief valve 360 to open, so that the outside air can enter the air extraction pipe 310, thereby releasing the vacuum state in the air extraction pipe 310, It is convenient to separate the air suction joint 310 from the vacuum preservation box 141 .
  • a switch (such as the control switch 380 described above) can be set to control the opening and closing of the pressure relief valve 360, so that it is convenient for the user to control the pressure relief valve 360 through the switch. Open and close to separate the suction connector 310 and the vacuum preservation box 141.
  • the pressure relief valve 360 is connected to the suction pipe 310 through a three-way pipe.
  • the pressure relief valve 360 may be disposed on one end of the suction pipe 310 close to the vacuum pump 320 .
  • the end of the three-way pipe connected to the pressure relief valve 360 is provided with a bent portion, and the bent portion can be arranged along the circumferential direction of the air extraction pipe 310 to reduce the installation space required for the pressure relief valve 360, thereby reducing the The space occupied by the vacuum manufacturing apparatus 300 .
  • the three-way pipe can be made of silica gel, so that when the pressure relief valve 360 is installed, the three-way pipe can be bent according to the size of the actual installation space, which can not only ensure the pressure relief The normal operation of the device can also reduce the space occupied by the pressure relief valve 360 as much as possible.
  • the pressure relief valve 360 and the air pressure sensor 351 may be provided with a buffer sleeve to reduce the vibration transmission of the vacuum pump 320 to the pressure relief valve 360 and the air pressure sensor 351 during operation, and avoid vibration transmission caused by vibration transmission.
  • the buffer sleeve can be made of silicone or rubber, so as to ensure that the buffer sleeve can absorb a certain amount of vibration, so as to prevent the pressure relief valve 360 and the air pressure sensor 351 from being damaged due to vibration.

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Abstract

本申请实施例提供了一种冰箱，包括：真空系统，设置于所述门体内部，所述真空系统一端设置于所述保护壳内部，所述真空系统另一端与所述真空保鲜盒相连接，由所述真空系统以抽出所述真空保鲜盒内的气体；泄压阀，设置于所述保护壳内部，所述泄压阀与所述真空系统固定连接，由所述泄压阀以对所述真空系统内部泄压，增设了泄压阀，将所述泄压阀一端连接到所述抽气管道上，当需要对真空保鲜盒打开时，通过泄压阀进行泄压，降低抽气管道内部的压力，进而便于开启真空保鲜盒，增设了三通阀，将所述三通阀设置于所述抽气管道以及真空阀连接处，通过三通阀提高泄压阀以及真空系统之间的连接性，同时增强其密封性。

Description

一种冰箱
相关申请的交叉引用
本申请要求在2020年07月31日提交中国专利局、申请号为202010762982.3，发明名称为一种冰箱的中国专利申请的优先权，在2020年07月31日提交中国专利局、申请号为202010761004.7，发明名称为冰箱的中国专利申请的优先权，以及在2020年07月31日提交中国专利局、申请号为202010757175.2，发明名称为冰箱及其抽真空控制方法的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及家用电器技术领域，特别是涉及一种冰箱。
背景技术
目前，消费者对生鲜食品品质要求的提高，为满足消费者需求，对冰箱配置亦提出新的要求，以希望冰箱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。
发明内容
一方面，本申请的一些实施例提供一种冰箱，其包括：
壳体，内部设置有低温储藏室；门体，设置于壳体上，门体内部设置有发泡层；保护壳，设置于门体内部；真空保鲜盒，设置于门体内侧壁面上；底座，设置于门体内侧壁面上，且底座设置于真空保鲜盒以及门体连接处，由底座以限定真空保鲜盒的安装位置；真空系统，设置于门体内部，真空系统一端设置于保护壳内部，真空系统另一端与真空保鲜盒相连接，由真空系统以抽出真空保鲜盒内的气体；泄压阀，设置于保护壳内部，该泄压阀与真空系统固定连接，由该泄压阀对真空系统内部泄压。
一方面，本申请的一些实施例提供了一种冰箱，包括：箱体，限定隔热的低温储藏间室；门体，可旋转地设于箱体上，以打开或封闭低温储藏间室；门体顶部设有容纳部；真空保鲜盒，设于门体靠近低温储藏间的一侧，其内可被抽空气形成低于冰箱外部大气压的气压以利于食物的保鲜；抽气装置，其包括设于容纳部内的真空泵、与真空泵相连接的排气管和进气管；抽气接头，其与进气管通过抽气管道相连通；抽气接头可翻转地设于门体上，以与真空保鲜盒连接或分离；泄压单元，设于容纳部内，并位于真空泵靠近进气管的一端；三通阀，其包括相互连通的第一支管和橡胶材料的第二支管；其中，第一支管的一端与进气管相连通，另一端与抽气管道相连通，第二支管与泄压单元相连通；抽气接头与真空保鲜盒连接，且真空泵工作，真空保鲜盒内的气体依次通过抽气接头、抽气管道、进气管、真空泵及排气管；抽真空结束后，泄压单元打开，气体进入所述抽气管道。
另一方面，本申请的一些实施例提供了一种冰箱，包括：箱体、设置于箱体上的门体 以及设置于门体上的真空制造装置，真空制造装置包括：抽气接头，其铰接于门体上；真空泵，其设置于门体内，真空泵通过抽气管道与抽气接头相连接；控制器，其设置于门体内，控制器与真空泵相连接，用于控制真空泵工作；气压传感器，设置于抽气管道上，气压传感器与控制器相连接；泄压阀，通过三通管与抽气管道相连接，三通管与泄压阀连接的一端设置有折弯部，折弯部环绕抽气管道设置，泄压阀与控制器相连接。
附图说明
图1是根据本申请一些实施例的冰箱的整体结构示意图；
图2是根据本申请实施例的冰箱的整体结构示意图；
图3是根据本申请一些实施例的三通阀结构示意图；
图4是根据本申请一些实施例的冰箱的结构示意图；
图5是根据本申请一些实施例的冰箱的结构示意图；
图6是根据本申请一些实施例的冰箱的结构示意图；
图7是根据本申请一些实施例的冰箱的结构示意图；
图8是根据本申请一些实施例的真空系统的结构示意图；
图9是根据本申请一些实施例真空保鲜盒的结构示意图；
图10是根据本申请一些实施例的抽气管道结构示意图；
图11是根据本申请一些实施例的冰箱的控制原理图；
图12为根据本申请一些实施例的冰箱的整体结构示意图；
图13为根据本申请一些实施例的冰箱的抽气接头与真空保鲜盒分离状态的结构示意图；
图14为根据本申请一些实施例的冰箱的抽气接头与真空保鲜盒连接状态的结构示意图；
图15为根据本申请一些实施例的冰箱的抽气管路与抽气接头的连接结构示意图；
图16为根据本申请一些实施例的冰箱的门体顶部结构示意图；
图17为根据本申请一些实施例的冰箱的真空泵、抽气管路及三通阀的装配结构示意图；
图18为根据本申请一些实施例的冰箱的真空泵、抽气管路及三通阀另一视角的装配结构示意图；
图19为根据本申请一些实施例的冰箱的真空泵、三通阀及泄压单元的相对位置示意图；
图20为根据本申请一些实施例的冰箱的真空泵、三通阀及泄压单元的装配结构示意图；
图21为根据本申请一些实施例的冰箱的真空泵、三通阀、泄压单元及抽气管道的装配结构示意图；
图22为根据本申请一些实施例的冰箱的真空泵、三通阀、泄压单元及抽气管道另一 视角的装配结构示意图；
图23为根据本申请一些实施例的冰箱的三通阀与抽气管道的装配结构示意图；
图24为根据本申请一些实施例的冰箱的抽气接头的部分结构示意图；
图25为根据本申请一些实施例的冰箱的抽气接头的另一结构示意图；
图26为根据本申请一些实施例的冰箱的真空保鲜盒的部分结构示意图；
图27为根据本申请一些实施例的冰箱的真空保鲜盒的另一结构示意图；
图28为根据本申请一些实施例的冰箱的抽真空控制方法的时序示意图；
图29为根据本申请一些实施例的冰箱的结构示意图；
图30为根据本申请一些实施例的真空制造装置的结构示意图；
图31为根据本申请一些实施例的真空制造装置的控制原理示意图；
图32为图13中B处的局部放大图；
图33为图13中A处的局部放大图；
图34为根据本申请一些实施例的抽气接头的剖视示意图。
具体实施方式
下面结合附图和实施例，对本申请的具体实施方式作进一步详细描述。以下实施例用于说明本申请，但不用来限制本申请的范围。
在本申请的描述中，需要理解的是，术语“中心”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示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一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
图1是根据本申请一些实施例的冰箱的整体结构示意图。如图1所示，冰箱包括壳体和门体110，壳体内部设置有低温储藏室，低温储藏室内形成有低温储藏空间，且门体110转动地连接于壳体，门体110内部设置有发泡层120，以实现在冰箱内存放或取出食材或物品。
门体110上设置有显示板、保鲜盒、真空接头和抽气管道330系统，真空保鲜盒140 设置在门体110内侧，使用时，将食材和物品放置于真空保鲜盒140内，以实现保鲜。
门体110显示板上设置有真空度显示，可以监控真空保鲜盒140内真空度情况。在一种可能的实施方式中，真空保鲜盒的真空度为-20KPA，控制开关380开启抽真空或者信号开启抽真空，显示终端上实时显示抽真空情况，真空度从0KPA到-10KPA再到-20KPA停止。
在门体110显示板或者其他控制终端上(设定真空度、暂定为2个档位，-20kpa与-10pa)，其中-10kpa用于水果蔬菜类的储存，-20kpa用于肉类及干货的储存。
图2是根据本申请实施例的冰箱的整体结构示意图。参照图1和2，本申请一些实施例提供了一种冰箱，其包括：保护壳130，设置于门体110内部，且保护壳130位于门体110顶端。
保护壳130呈矩形状腔体，保护壳130由侧板、前板、后板以及底板组成，保护壳130顶端还设置有顶板，顶板与保护壳130活动连接，且顶板与门体110顶端持平。
通过保护壳130对真空泵320以及液压阀等组织件进行固定，同时起到保护作用。
根据本申请一些实施例，真空保鲜盒140设置于所述门体110内侧壁面上。
图9是根据本申请一些实施例真空保鲜盒的结构示意图。参照图9所示，所述真空保鲜盒140由上盖141、下盖142、密封条143以及固定卡扣144组成；所述下盖142设置于底座150上，所述上盖141设置于所述下盖142顶端，所述密封条143设置于所述上盖141内部，且所述密封条143与所述下盖142顶端相贴合，所述固定卡扣144设置于所述上盖141两端，所述固定卡扣144底端与所述下盖142相连接。
本申请实施例通过真空保鲜盒140提高食材的保鲜效果，延缓食材及物品的腐烂，通过密封条143增加上盖141以及下盖142之间的密封性，通过固定卡扣144增加真空保鲜盒140整体的稳固性。
根据本申请一些实施例，参照图1，底座150，设置于所述门体110内侧壁面上，且所述底座150设置于所述真空保鲜盒140以及所述门体110连接处。
底座150由底板以及侧板组成，底座150以及门体110连接处设置有连接组件。
通过底座150对真空保鲜盒140进行固定，以限定真空保鲜盒140的安装位置，通过连接组件增加底座150以及门体110之间的连接性。
根据本申请一些实施例中，参照图2和4-8，真空系统，设置于所述门体110内部，所述真空系统一端设置于所述保护壳130内部，所述真空系统另一端与所述真空保鲜盒140相连接。
真空系统由抽气管道330、真空泵320、抽气接头310以及控制开关380组成，抽气管道330，设置于所述门体110内部，且所述抽气管道330与所述发泡层120相贴合，所述抽气管道330与所述泄压阀360相连接，真空泵320，设置于所述保护壳130内部，所述真空泵320与所述抽气管道330固定连接，抽气接头310，设置于所述真空保鲜盒140上，所述抽气接头310一端与所述真空保鲜盒140顶端旋转连接，所述抽气接头310另一端与所述抽气管道330相连接，控制开关380，设置于所述抽气接头310顶端。
由所述真空系统以抽出所述真空保鲜盒140内的气体，由所述抽气管道330以引导所述真空保鲜盒140内部气体走向，通过控制开关380控制抽气接头310，通过抽气接头310将真空保鲜盒140与抽气管道330相接通，启动真空泵320，从而完成抽真空过程。
图4是根据本申请一些实施例的冰箱的结构示意图；图5是根据本申请一些实施例的冰箱的结构示意图；图6是根据本申请一些实施例的冰箱的结构示意图；图7是根据本申请一些实施例的冰箱的结构示意图；图8是根据本申请一些实施例的真空系统的结构示意图。根据本申请一些实施例，参照图4-8所示，泄压阀360设置于所述保护壳130内部，所述泄压阀360与所述真空系统固定连接。
通过所述泄压阀360对所述真空系统内部进行泄压，从而降低抽气管道330内部的压力，进而便于开启真空保鲜盒140。
图3是根据本申请一些实施例的三通阀结构示意图。根据本申请一些实施例，参照图3所示，三通阀350，设置于所述保护壳130内部，所述三通阀350一端与所述抽气管道330固定连接，所述三通阀350另一端与所述真空泵320固定连接，且所述三通阀350与所述泄压阀360相互连接。
三通阀350采用硅胶材料制作而成，进而提高三通阀350的可塑性。
通过三通阀350增加泄压阀360以及抽气管道330之间的连接性，并由所述三通阀350以限定泄压阀360的安装位置。
根据本申请一些实施例，参照图7所示，硅胶弹簧410，设置于所述门体110内部，且所述硅胶弹簧410套装于所述真空泵320上，由所述硅胶弹簧410以限定所述真空泵320的安装位置。
所述硅胶弹簧410内侧设置有凹陷部，所述硅胶弹簧410外侧设置有凸出部。
通过硅胶弹簧410内侧的凹陷部以及凸出部的配合，可有效的对真空泵320进行固定，同时可有效的抑制真空泵320的震动效果，并且最大限度的减少了振动传递的接触面积，接触面积小的区域由接触面积大的区域过度用以保证强度，硅胶弹簧410与保护壳130内壁面的接触部位形成空腔，起弹簧作用，进而使真空泵320工作时直接将振动完全衰减掉。
根据本申请一些实施例中，参照图5-7所示，硅胶套420设置于所述门体110内部，所述硅胶套420套装于所述泄压阀360上。
硅胶套420呈矩形状空腔结构，硅胶套420的内部空间与泄压阀360相互匹配。
通过硅胶套420防止泄压阀360将真空泵320的振动传递给四周。
根据本申请一些实施例，参照图1所示，连接块430，设置于所述门体110内部，所述连接块430套装于所述抽气管道330上，且所述连接块430连接到所述发泡层120上。
连接块430呈矩形块状结构，连接块430上开设有圆形通孔，圆形通孔与抽气管道330相互匹配。
由所述连接块430以将抽气管道330固定于门体110上。
图10是根据本申请一些实施例的抽气管道结构示意图。根据本申请一些实施例，参照图6和10所示，限位卡扣440，设置于所述门体110内部，所述限位卡扣440与所述保 护壳130侧壁面固定连接，所述限位卡扣440套装于所述抽气管道330上，且所述限位卡扣440与所述三通阀350一端相贴合。
限位卡扣440由卡扣、底座、加强筋以及套管组成，卡扣设置于底座一端，套管设置于底座另一端，加强筋固定安装于底座上，且加强筋与套管外壁面固定连接。
通过底座提高限位卡扣440整体的稳固性，通过卡扣以及底座的配合将保护壳130固定于门体110内部，通过套管对抽气管道330进行保护，通过加强筋增加套管以及底座之间的稳定性。
其中，泄压阀360的安装步骤如下：
S1、将三通阀350一端与抽气管道330固定连接；
S2、将三通阀350另一端与真空泵320固定连接；
S3、将泄压阀360固定于保护壳130内部，并将泄压阀360与三通阀350顶端固定连接，进而完成泄压阀360的安装。
在使用的时候，控制控制开关380，通过控制开关380控制抽气接头310的转动，使抽气接头310接通真空系统，启动真空泵320，通过真空泵320将真空保鲜盒140内部的气体沿抽气管道330抽出，从而使真空保鲜盒140内部形成真空状态，当需要对真空保鲜盒140进行泄压时，启动泄压阀360，通过泄压阀360向抽气管道330内部注入空气，从而降低抽气管道330内部的压力，进而便于开启真空保鲜盒140。
本申请的一些实施例增设了泄压阀，将所述泄压阀一端连接到所述抽气管道上，当需要对真空保鲜盒打开时，通过泄压阀进行泄压，降低抽气管道内部的压力，进而便于开启真空保鲜盒。
本申请的一些实施例改进了真空系统，通过真空系统将真空保鲜盒内部的气体抽出，从而使真空保鲜盒内部呈真空状态，进而提高食材的保鲜效果，延缓食材及物品的腐烂。
本申请的一些实施例增设了三通阀，将所述三通阀设置于所述抽气管道以及真空阀连接处，通过三通阀提高泄压阀以及真空系统之间的连接性，同时增强其密封性。
本申请的一些实施例增设了硅胶套，所述硅胶套套装于所述泄压阀上，由所述硅胶套防止泄压阀将真空泵的振动传递给四周。
本申请的一些实施例增设了连接块，将连接块设置于所述抽气管道以及所述门体连接处，通过连接块增加了抽气管道以及门体之间的连接性，并有效的降低了在抽真空过程中所产生的噪音。
本申请的一些实施例增设了限位卡扣，所述限位卡扣设置于所述保护壳以及所述抽气管道连接处，通过限位卡扣提高了抽气管道的稳定性，并对抽气管道进行保护，防止真空泵的震动带动抽气管道一同进行震动。
本申请的一些实施例增设了硅胶弹簧，所述硅胶弹簧套装于所述真空泵上，通过硅胶弹簧可有效的抑制真空泵的振动效果，降低噪音。
图12为根据本申请一些实施例的冰箱的整体结构示意图。如图12所示，本申请一些实施例提供了一种冰箱1，其包括限定多个隔热的低温储藏间室以储藏食物等物品的箱体 100。具体的，低温储藏间室分别是冷藏室、冷冻室；其中冷藏室位于上部，冷冻室位于底部。各低温储藏间分别设有各自的门体；本申请中冷藏室9设置对开门式的门体110。冰箱1具有形成闭环的蒸发式制冷系统。图13为根据本申请一些实施例的冰箱的抽气接头与真空保鲜盒分离状态的结构示意图；图14为根据本申请一些实施例的冰箱的抽气接头与真空保鲜盒连接状态的结构示意图；图15为根据本申请一些实施例的冰箱的抽气管路与抽气接头的连接结构示意图。如图13-图15所示，门体110上设有真空保鲜盒141、抽气装置及抽气接头310。具体的，真空保鲜盒141可拆卸地设置在门体110上，且可保持在低压状态。抽气装置设于门体110的顶部，且抽气装置与真空保鲜盒141位于同一门体110上；抽气装置用以将气体从真空保鲜盒141内抽离，以在真空保鲜盒141内形成低压状态。抽气接头310可翻转地设于门体110上，且抽气接头310位于门体110靠近真空保鲜盒141的一侧；通过翻转抽气接头310，以使抽气接头310与真空保鲜盒141相连接或分离。
当真空保鲜盒141与抽气接头310相连接且抽气装置启动时，位于真空保鲜盒141内的气体被抽离，真空保鲜盒141处于低压状态。在一种可能的实施方式中，在抽真空程序结束时，真空保鲜盒141内的压强介于一个标准大气压和绝对真空之间。由于真空保鲜盒141内的气压低于标准大气压，本领域技术人员也俗称其“真空储藏”，将气压低于标准大气压的这种状态称为“真空状态”。
图16为根据本申请一些实施例的冰箱的门体顶部结构示意图；图17为根据本申请一些实施例的冰箱的真空泵、抽气管路及三通阀的装配结构示意图；图18为根据本申请一些实施例的冰箱的真空泵、抽气管路及三通阀另一视角的装配结构示意图；图19为根据本申请一些实施例的冰箱的真空泵、三通阀及泄压单元的相对位置示意图；图20为根据本申请一些实施例的冰箱的真空泵、三通阀及泄压单元的装配结构示意图；图21为根据本申请一些实施例的冰箱的真空泵、三通阀、泄压单元及抽气管道的装配结构示意图；图22为根据本申请一些实施例的冰箱的真空泵、三通阀、泄压单元及抽气管道另一视角的装配结构示意图；图23为根据本申请一些实施例的冰箱的三通阀的结构示意图；图24为根据本申请一些实施例的冰箱的三通阀与抽气管道的装配结构示意图。
结合图15，如图16-图24所示，门体110顶部设有容纳部110a，用于容置真空泵320。抽气装置包括真空泵320及弹性套5；其中，弹性套5套设于真空泵320外部，且与门体110顶部的容纳部110a相抵接，以减振降噪。真空泵320上设有排气管12和抽气管路；抽所管路包括进气管11和抽气管道330；其中，抽气管道330一端与进气管11相连通，另一端与抽气接头310相连通，以在抽气接头310与真空保鲜盒141相连接时，用于与真空保鲜盒141相连通。具体的，参见图15，抽气管道330沿门体110由上向下延伸至抽气接头310。抽气管路上设有与之相连通的泄压单元7，以用于抽真空结束后使外部气体进入抽气装置的抽气管路内，从而平衡抽气装置的抽气管路的内外气压，以减小抽气接头310的内外压差，方便用户翻转抽气接头310使其与真空保鲜盒141分离。
如图16-图24所示，在本申请一些实施例中，泄压单元7安装于容纳部110a内，且 设于进气管11与抽气管道330连接处。其中，泄压单元7、进气管11、抽气管道330通过三通阀350相连接。具体的，泄压单元7包括泄压件71，泄压件71外套接有减振套72；减振套72与容纳部110a相抵接，以减振降噪。泄压件71包括与抽气管路相连通的连接管71a及与外界大气相连通的通气管71b。通过控制泄压件71的开关状态，能够实现连接管71a与通气管71b的阻断或连通，从而改变抽气管路与大气的连通状态，以平衡抽气管路内外气压。
如图3所示，三通阀350包括相互连通的第一支管350a、第二支管350b；其中，至少第二支管350b为橡胶材料，即第二支管350b为橡胶管；具体的，本实施例中第二支管350b设置为硅胶材料，三通阀350通过模压成型。第一支管350a的一端与进气管11相连通，另一端与抽气管道330相连通，第二支管350b与泄压单元7的连接管71a相连通。泄压单元7设于容纳部110a内，且位于真空泵5靠近进水管11的一端，且泄压单元7与抽气管路相邻设置。在一些实施例中，容纳部110a的底壁上设有分隔板17，分隔板17的位置与第一支管350a相对应，以将容纳部110a靠近进气管11的一端分隔为第一分部110b和第二分部110c；即，第一分部110b和第二分部110c分居于第一支管350a的相对两侧。
泄压单元7安装于第一分部110b内，三通阀350上的第二支管350b与第一支管350a的连接处位于第一支管350a靠近第二分部110c的一侧，即处于自然状态的第二支管350b位于第二分部110c内。安装时通过弯折第二支管350b，使其与泄压单元7上的连接管71a相连通。以上设置能够充分利用容纳部110a的空间，结构简单，装配紧凑且连接方便。
具体的，抽气装置及泄压单元的安装方法如下：首先，如图23所示，将抽气管道330靠近容纳部110a的一端与第一支管350a的一端相连接；其次，如图16-图18所示，将真空泵320安装在容纳部110a内，并将第一支管350a的另一端与进气管11相连接；再者，如图19-图22所示，安装泄压单元7，并弯折第二支管350b，以使第二支管350b与泄压单元7上的连接管71a相连通。以上完成抽气装置及泄压单元7的安装。
图25为根据本申请一些实施例的冰箱的抽气接头的另一结构示意图。如图24-图25所示，抽气接头310上设有对接口310a，对接口310a与抽气管道330相连通。
图26为根据本申请一些实施例的冰箱的真空保鲜盒的部分结构示意图；图27为根据本申请一些实施例的冰箱的真空保鲜盒的另一结构示意图。如图26-图27所示，真空保鲜盒141上设有抽气口141a。抽气接头310翻转与真空保鲜盒141相连接时，抽气口141a与抽气接头310上的对接口310a相对接，以在抽真空时使真空保鲜盒141的内腔与抽气管路相连通。
具体的，抽气口141a内设有单向通气单元15，在抽气装置抽气时单向通气单元15打开抽气口141a，在抽气结束后单向通气单元15密封抽气口141a。具体的，单向通气单元15可包括安装于抽气口141a内的橡胶柱；当真空保鲜盒141内压强大于橡胶柱靠近抽气接头一侧的压强时，橡胶柱向靠近抽气接头310一侧移动，抽气口141a打开；当真空保鲜盒141内压强小于橡胶柱靠近抽气接头310一侧的压强时，橡胶柱向靠近真空保鲜盒141内腔一侧移动，密封抽气口141a。以上在压力差作用下，打开或密封抽气口141a。
本实施例中，抽气口141a设于真空保鲜盒141的顶部，抽气接头310位于真空保鲜盒141的上方，且抽气接头310与真空保鲜盒141相对接时，抽气接头310上的对接口310a与抽气口141a相对应。
真空泵320工作，在单向通气单元15靠近抽气接头310一侧产生负压，抽气口141a打开，真空保鲜盒141的内腔与抽气管道330相连通，真空保鲜盒141内的气体依次通过抽气口141a、对接口3110a、抽气管道330、进气管11、真空泵320及排气管12。本实施例中，排气管12可设置为与冰箱外界大气环境相连通，以将由真空保鲜盒141内抽出的空气排至冰箱1外部。
当真空泵320停止工作，单向通气单元15靠近抽气接头310一侧的压强大于其靠近真空保鲜盒141内腔一侧的压强，真空保鲜盒141的抽气口141a关闭，真空保鲜盒141呈低压密封状态。此时，由于抽气接头310与抽气口141a仍密封连接，抽气管道330内的压强小于外界大气压，若直接手动翻转抽气接头310以使其与真空保鲜盒141相分离，用户需要施加较大的力；本申请中设置有与抽气管道330相连通的泄压单元7，在抽真空结束后，泄压单元7打开，气体进入抽气管道330，使抽气管道330内外的压强得以平衡，方便用户翻转抽气接头310使其与真空保鲜盒141相分离。
在本申请的一些实施例中，如图14所示，门体110上设有控制开关380，用于开启抽真空操作。具体的，可设定抽真空时间阈值，在抽真空达到预设的抽真空时间阈值时，结束抽真空。然后，泄压单元7打开，以使气体进入抽气装置的抽气管路，从而平衡管路内外气压，以方便用户翻转抽气接头310使其与真空保鲜盒141相分离。
应当理解的是，不局限于以上说明的抽真空开启与关闭方式；亦可于真空保鲜盒141上设置压力检测单元，以实时监测真空保鲜盒141内的压力；并设置通过压力信号开启抽真空操作。
冰箱1设有用于控制抽气装置、泄压单元7的工作状况的控制单元，以实现对真空保鲜盒141抽真空的自动控制。即控制单元控制抽气装置对真空保鲜盒141进行抽真空，控制泄压单元7在抽真空结束后平衡抽气管路的内外气压。
在本申请一些实施例中，门体110远离储藏间室的一侧(或其他显示终端，如手机)设有显示单元，以显示真空保鲜盒141内的真空度情况。具体的，设定真空保鲜盒141的目标真空度为-20Kpa，控制开关380或者压力信号开启抽真空操作，显示单元上实时显示抽真空情况，显示真空度从0Kpa到-10Kpa再到-20Kpa停止。
另外，设定多个目标真空度档位；例如，设定两个目标真空度档位-20Kpa、-10pa。用户可预先设定所需要的目标真空度档位；如用于水果蔬菜类储存预先设定-10Kpa，用于肉类及干货储存预先设定-20Kpa；然后执行抽真空操作时，控制逻辑同上。以上设置一方面使真空保鲜盒内的真空度对用户可视化，另一方面能够使用户根据真空保鲜盒内储藏物的类别进行特定的目标真空度设置，使用户可以进行差异化抽真空。
具体的，将控制开关380或压力检测单元可作为冰箱抽真空控制时的触发单元；冰箱亦可设置计时单元，即，将计时单元或压力检测单元作为冰箱抽真空控制时监测抽真空进 程的监测单元。监测单元监测是否达到停止抽真空的条件，当达到预设条件时停止抽真空，监测单元反馈结束抽真空信号至控制单元。具体的，监测单元设为计时单元时，可设置真空泵320工作时间达到预设的抽真空时间阈值时，真空泵320停止工作，并由计时单元反馈结束抽真空信号至控制单元。监测单元设为压力检测单元，可设置压力检测单元检测到真空保鲜盒141内的气压达到预设的结束气压阈值时，真空泵320停止工作，并由压力检测单元反馈结束抽真空信号至控制单元。
需要说明的是，压力检测单元14可设置为始终监测与真空保鲜盒141内的气压，以将压力信号作为开启或结束抽真空的触发条件；另外，压力检测单元14可设置为仅在抽真空过程中与能够检测真空保鲜盒141的气压，如图11中，压力检测单元14与抽气装置的抽气管路相连通，在抽真空结束后，因压力检测单元与真空保鲜盒141断开而不能确保有效检测真空保鲜盒141内的气压，故在该设置下，仅将压力信号作为结束抽真空的触发条件，而不适宜作为开启抽真空的触发条件。其具体设计时，根据实际设置而进行控制逻辑的限定。
图28为根据本申请一些实施例的冰箱的抽真空控制方法的时序示意图。如图28所示，其包括以下步骤：
S1：确定满足抽真空条件；
具体的，抽气接头310与真空保鲜盒141相对接，且用户通过控制开关380触发抽真空操作。亦可设置为抽气接头310与真空保鲜盒141相对接，压力检测单元检测到真空保鲜盒141内的气压达到预设的开启气压阈值。
S2：控制单元控制真空泵320进行抽真空，监测单元对抽真空状态进行监测；
具体的，监测单元监测是否达到停止抽真空的条件，当达到预设条件时停止抽真空，监测单元反馈结束抽真空信号至控制单元。
S3：在抽真空结束时，控制单元控制泄压单元7打开，气体进入所述抽气管路，以平衡所述抽气管路的内外气压。
以上冰箱抽真空的控制方法能够在抽真空结束的第一时间进行抽气装置的抽气管路泄压，以方便用户翻转抽气接头310使其与真空保鲜盒141相分离。
本申请中，泄压单元7与真空泵320均设于门体110顶部的容纳部110a内，通过三通阀350将连接进气管11、抽气管道330及泄压单元7相连通，其中三通阀350与泄压单元7相连接的第二支管350b设置为橡胶材料，以能够在安装时通过弯折与泄压单元7上相连通。以上设置三通阀的设置能够充分利用容纳部110a的空间，结构简单，装配紧凑且连接方便。
图29为根据本申请一些实施例的冰箱的结构示意图。如图29所示，本实施例的冰箱包括箱体100、设置于箱体100上的门体110以及设置于门体110上的真空制造装置300。其中，箱体100具有多个用以储存物品的间室，门体110铰接于箱体100上，以实现箱体100的开启和关闭，该门体110可以为中空结构，以具有一定的存储空间。
图30为根据本申请一些实施例的真空制造装置的结构示意图。如图29和图30所示， 在本申请的一写实施例中，真空制造装置300包括抽气接头310、真空泵320、控制器340以及气压传感器351。其中，抽气接头310用以与真空保鲜盒141相配合，以能够从真空保鲜盒141中抽取空气。具体地，抽气接头310铰接于门体110上，在需要对真空保鲜盒141进行抽真空时，可以将抽气接头310向外翻转，以与真空保鲜盒141相配合。在不需要进行抽真空时，则可以将抽气接头310向靠近门体110的方向翻转进行收纳，以避免抽气接头310在闲时占用冰箱的存储空间，从而可以提高冰箱的空间利用率。
真空泵320设置于门体110内，且通过抽气管道310与抽气接口连接。相应的，抽气管道310也设置于门体110内，以避免占用冰箱的存储空间，且能够避免抽气管道310暴露在外，易被损坏，降低了维修成本。
此外，控制器340也设置于门体110内，且与真空泵320相连接，该控制器340用于控制该真空泵320工作。当需要进行抽真空时，控制器340可以控制真空泵320开始抽气，以实现真空保鲜盒141的真空保鲜。当抽真空完成时，控制器340则可以控制真空泵320停止工作，以保持真空保鲜盒141中的真空状态。在一种可能的实施方式中，控制器340中可以是微型控制器340或者可编程逻辑控制器340中的任意一种，以实现对真空泵320的控制。
气压传感器351可以设置于抽气管道310上，用于检测抽气管道310内的气压。该气压传感器351与控制器340相连接，以能够将所检测到的气压值向控制器340进行反馈，使控制器340根据该气压值进行相应控制。在一中可能的实施方式中，可以根据储存物品的种类设置对应的气压阈值，例如针对肉类及干货可以将气压阈值设定为-20kPa，针对水果蔬菜类的可以将气压阈值设定为-10kPa。
由此，可以根据真空保鲜盒141内的所储存的物品的种类，对应控制真空保鲜盒141内的气压，以达到最佳的保鲜效果，即若真空保鲜盒141内所储存的物品的种类为水果蔬菜类，则当气压传感器351检测到抽气管道310内的气压达到-10kPa时，控制器340则控制真空泵320停止工作；若为肉类或者干货，则当气压传感器351检测到抽气管道310内的气压达到-20kPa时，则控制器340控制真空泵320停止工作。以上仅为示例性举例，本领域技术人员可以根据实际实现需要，设定对应的气压阈值，本申请对此不做特殊限定。
图31为根据本申请一些实施例的真空制造装置的控制原理示意图。如图31所示，在本申请的一些实施例中，所述冰箱还包括显示装置370，该显示装置370可以设置于门体110上，且该显示装置370与控制器340相连接。根据气压传感器351所检测到的气压值，控制器340可以将其在显示装置370上进行显示，以使用户可以通过该显示装置370直观知晓抽气管道310内的气压，对真空制造装置300的工作情况具有一定了解，增强了用户与冰箱的交互。需要说明的，该显示装置370可以是CRT显示器、LCD显示器、LED显示器或者3D显示器中的任意一种，也可以是其他的现有的显示设备，本申请对此不做特殊限定。
在本申请的一些实施例中，该显示装置370上还配置有输入装置，该输入装置用于调节抽气管道310中的气压大小。具体地，该输入装置可以是输入键盘，也可以是触屏输入 设备等，且该输入装置与控制器340相连接。由此，用户在通过显示装置370知晓抽气管道310中气压情况之后，可以通过该输入装置实时控制抽气管道310中的气压大小，若觉得抽气管道310中的气压过小或过大，则可以通过输入装置输入所需调节的气压大小，控制器340根据输入装置所输入的目标气压，对应控制真空泵320进行工作，以达到调整抽气管道310的气压的目的，便于用户对其进行实时控制。
在本申请的一些实施例中，所述真空制造装置300还包括控制开关380，该控制开关380与控制器340相连接，用户可以通过该控制开关380控制真空制造装置300的开启和关闭。例如当需要进行真空保鲜时，用户可以通过该控制开关380控制真空制造装置300开始工作，控制器340可以根据预设的程序对真空保鲜盒141进行抽真空，若无需进行真空保鲜时，则用户可以通过该控制开关380控制真空制造装置300关闭，以降低功耗。
图32为图30中B处的局部放大图，如图30和图32所示，在本申请的一些实施例中，门体110上设置有铰接座390，该抽气接头310铰接于所述铰接座390上，以使抽气接头310能够以水平方向为轴进行翻转。抽气接头310向外翻转时为抽气接头310的工作状态，使得抽气接头310能够与真空保鲜盒141相配合抽取真空保鲜盒141中的空气，且由上向下进行抽取，能够防止真空保鲜盒141内的物品堵塞抽气孔，以保证抽气接头310的抽气效率；当抽气接头310向上进行翻转，以靠近铰接座390时为抽气接头310的非工作状态，当无需进行真空保鲜时，可以将抽气接头310向上进行翻转，以减少抽气接头310占用冰箱的存储空间，提高冰箱的空间利用率。
如图32所示，在本申请的一些实施例中，抽气接头310的顶部可以设置有磁性件311，当抽气接头310向上翻转时(即非工作状态)，可以通过该磁性件311吸附于门体110上，以实现抽气接头310在非工作状态时的固定。
如图32所示，在本申请的一些实施例中，控制开关380可以设置于铰接座390上，二者相结合，当用户需要进行真空保险时，则可以通过铰接座390上的控制开关380进行控制真空制造装置300进行启动，无需在其他地方设置，便于用户进行控制。
在一种可能的实施方式中，控制开关380可以为接近开关，当抽气接头310向上翻转时，接近开关检测到抽气接头310靠近(即为非工作状态)，则可以控制真空制造装置300关闭，以降低功耗。当接近开关检测到抽气接头310向外进行翻转远离铰接座390时(即工作状态)，则可以控制真空制造装置300开启以进行抽真空。由此可以实现真空制造装置300的自动控制，无需人工进行参与。
图34为根据本申请一些实施例的抽气接头的剖视示意图。如图32和图34所示，在本申请的一些实施例中，铰接座390上设置有限位部391，用以限制抽气接头310的转动范围，以防止抽气接头310翻转过度，造成抽气接头310的损坏，且不易控制。具体地，限位部391可以是位于抽气接头310的下方，且由下向上延伸的挡板，使得在抽气接头310处于工作状态时可以与抽气接头310的下表面相抵接，从而向抽气接头310提供支撑力，以限制该抽气接头310的转动范围。进一步地，可以将抽气接头310的转动范围限制为0°至90°，使得抽气接头310在工作状态时能够与水平面相平行，保证抽气接头310与真空 保鲜盒141的良好配合。
如图34所示，在本申请的一些实施例中，抽气接头310包括进气口312、出气口313以及设置于进气口312与出气口313之间的风腔314，该抽气管道310的一端与出气口313相连接，抽气管道310的另一端与真空泵320相连接。且该进气口312的直径沿进气方向逐渐减小，由此，在抽取真空保鲜盒141内的空气时，可以对所抽取的空气起到导向的作用，以保证抽气接头310的吸力大小，避免由于进气口312过大，而导致抽气接头310的吸力分散，抽吸效果较差。
请继续参考图34，抽气接头310上设置有密封件，该密封件沿进气口312的周向设置且环绕该进气口312。该密封件用于在抽气接头310与真空保鲜盒141相配合时，能够保证抽气接头310与真空保鲜盒141之间的气密性，进而保证抽气接头310的抽吸效果。
图33为图30中A处的局部放大图，如图33所示，气压传感器351设置在抽气管道310靠近真空泵320的一端，应该理解的，当抽气接头310在抽取空气时，由于抽气管道310与真空保鲜盒141是相通的，真空保鲜盒141内的空气在真空泵320的作用下沿抽气管道310进行流通。若将气压传感器351设置于靠近抽气接头310的一端，则当气压传感器351检测到气压值达到气压阈值时，控制器340即控制真空泵320停止工作。然而由于抽气管道310内还具有一定量的空气，其会出现回流，使得真空保鲜盒141内的气压值无法达到气压阈值。因此，将气压传感器351靠近真空泵320设置，可以保证抽气管道310内存在较少的空气，避免其影响真空保鲜盒141的气压值，使得真空保鲜盒141内的气压能够达到预定的气压阈值，进而保证了真空保鲜盒141内的保鲜效果。
且气压传感器351位于门体110内，以避免气压传感器351占用冰箱的存储空间。具体地，气压传感器351可以通过三通阀与抽气管道310相连接，以保证气压传感器351安装位置的气密性，防止对抽气管道310造成破坏而影响抽气管道310的气密性。
如图33所示，在本申请的一些实施例中，真空制造装置300还包括泄压阀360，该泄压阀360设置于抽气管道310上，且位于门体110内部。当在对真空保鲜盒141进行抽真空后，由于抽气管道310内的负压过大，导致抽气接头310和真空保鲜盒141不易分离，不便于用户拿取真空保鲜盒141。通过泄压阀360的设置，则可以通过控制器340控制泄压阀360工作，以解除抽气管道310中的真空状态。当用户需要分开抽气接头310和真空保鲜盒141时，控制器340可以控制泄压阀360打开，以使外部的空气能够进入抽气管道310中，从而解除抽气管道310中的真空状态，便于抽气接头310与真空保鲜盒141分离。
在一种可能的实施方式中，可以通过设置开关(例如上文所述的控制开关380等)，用以控制泄压阀360的打开和关闭，从而便于用户通过该开关控制泄压阀360的开启和关闭，以分离抽气接头310和真空保鲜盒141。
如图33所示，泄压阀360通过三通管与抽气管道310相连接，具体地，泄压阀360可以设置于抽气管道310上靠近真空泵320的一端。其中，三通管上与泄压阀360所连接的一端设有折弯部，该折弯部可以沿抽气管道310的周向设置，以减少泄压阀360所需的安装空间，从而减少真空制造装置300的占用空间。
在本申请的一些实施例中，该三通管可以采用硅胶制作而成，使得在安装泄压阀360时，能够根据实际的安装空间的大小，弯折该三通管，既能够保证泄压装置的正常工作，同时也能够尽可能减少泄压阀360的占用空间。
在本申请的一些实施例中，泄压阀360和气压传感器351上可以套设有缓冲套，以降低真空泵320在工作时对泄压阀360和气压传感器351的振动传递，避免因为振动传递而导致泄压阀360和气压传感器351出现损坏或者影响测量精度等情况。延长了泄压阀360和气压传感器351的使用寿命，降低了维修成本。在一示例中，该缓冲套可以采用硅胶或者橡胶制成，从而保证缓冲套能够吸收一定量的振动，以防止泄压阀360和气压传感器351因为振动而出现损坏。
虽然已参照几个典型实施方式描述了本申请，但应当理解，所用的术语是说明和示例性、而非限制性的术语。由于本申请能够以多种形式具体实施而不脱离本申请的精神或实质，所以应当理解，上述实施方式不限于任何前述的细节，而应在随附权利要求所限定的精神和范围内广泛地解释，因此落入权利要求或其等效范围内的全部变化和改型都应为随附权利要求所涵盖。

Claims (27)

  1. 一种冰箱，其特征在于，包括：
    壳体，所述壳体内部设置有低温储藏室，所述低温储藏室内形成有低温储藏空间；
    门体，设置于所述壳体上，所述门体内部设置有发泡层；
    保护壳，设置于所述门体内部；
    真空保鲜盒，设置于所述门体内侧壁面上；
    底座，设置于所述门体内侧壁面上，且所述底座设置于所述真空保鲜盒以及所述门体连接处，由所述底座以限定真空保鲜盒的安装位置；
    真空系统，设置于所述门体内部，所述真空系统一端设置于所述保护壳内部，所述真空系统另一端与所述真空保鲜盒相连接，由所述真空系统以抽出所述真空保鲜盒内的气体；
    泄压阀，设置于所述保护壳内部，所述泄压阀与所述真空系统固定连接，由所述泄压阀以对所述真空系统内部泄压。
  2. 根据权利要求1所述的一种冰箱，其特征在于，所述真空系统包括：
    抽气管道，设置于所述门体内部，且所述抽气管道与所述发泡层相贴合，所述抽气管道与所述泄压阀相连接，由所述抽气管道以引导所述真空保鲜盒内部气体走向；
    真空泵，设置于所述保护壳内部，所述真空泵与所述抽气管道固定连接；
    抽气接头，设置于所述真空保鲜盒上，所述抽气接头一端与所述真空保鲜盒顶端旋转连接，所述抽气接头另一端与所述抽气管道相连接；
    控制开关，设置于所述抽气接头顶端，由所述控制开关控制抽气接头。
  3. 根据权利要求2所述的一种冰箱，其特征在于，还包括：
    三通阀，设置于所述保护壳内部，所述三通阀一端所述抽气管道固定连接，所述三通阀另一端与所述真空泵固定连接，且所述三通阀与所述泄压阀相互连接，由所述三通阀以限定泄压阀的安装位置。
  4. 根据权利要求2所述的一种冰箱，其特征在于，还包括：
    硅胶弹簧，设置于所述门体内部，且所述硅胶弹簧套装于所述真空泵上，由所述硅胶弹簧以限定所述真空泵的安装位置；
    所述硅胶弹簧内侧设置有凹陷部，所述硅胶弹簧外侧设置有凸出部。
  5. 根据权利要求1所述的一种冰箱，其特征在于，还包括：
    硅胶套，设置于所述门体内部，所述硅胶套套装于所述泄压阀上。
  6. 根据权利要求2所述的一种冰箱，其特征在于，还包括：
    连接块，设置于所述门体内部，所述连接块套装于所述抽气管道上，且所述连接块连接到所述发泡层上，由所述连接块以将抽气管道固定于门体上。
  7. 根据权利要求3所述的一种冰箱，其特征在于，还包括：
    限位卡扣，设置于所述门体内部，所述限位卡扣与所述保护壳侧壁面固定连接，所述限位卡扣套装于所述抽气管道上，且所述限位卡扣与所述三通阀一端相贴合。
  8. 根据权利要求1所述的一种冰箱，其特征在于，所述真空保鲜盒由上盖、下盖、密封条以及固定卡扣组成；
    所述下盖设置于所述底座上，所述上盖设置于所述下盖顶端，所述密封条设置于所述上盖内部，且所述密封条与所述下盖顶端相贴合，所述固定卡扣设置于所述上盖两端，所述固定卡扣底端与所述下盖相连接。
  9. 冰箱，其特征在于，其包括：
    箱体，限定隔热的低温储藏间室；
    门体，可旋转地设于所述箱体上，以打开或封闭所述低温储藏间室；所述门体顶部设有容纳部；
    真空保鲜盒，设于所述门体靠近所述低温储藏间的一侧，其内可被抽空气形成低于所述冰箱外部大气压的气压以利于食物的保鲜；
    抽气装置，其包括设于所述容纳部内的真空泵、与所述真空泵相连接的排气管和进气管；
    抽气接头，其与所述进气管通过抽气管道相连通；所述抽气接头可翻转地设于所述门体上，以与所述真空保鲜盒连接或分离；
    泄压单元，设于所述容纳部内，并位于所述真空泵靠近所述进气管的一端；
    三通阀，其包括相互连通的第一支管和橡胶材料的第二支管；其中，所述第一支管的一端与所述进气管相连通，另一端与所述抽气管道相连通，所述第二支管与所述泄压单元相连通；
    所述抽气接头与所述真空保鲜盒连接，且所述真空泵工作，所述真空保鲜盒内的气体依次通过所述抽气接头、抽气管道、进气管、真空泵及排气管；抽真空结束后，所述泄压单元打开，气体进入所述抽气管道。
  10. 根据权利要求9所述的冰箱，其特征在于：所述容纳部的底壁上设有与所述第一支管相对应的分隔板，所述分隔板将所述容纳部靠近所述进气管的一端分隔为第一分部和第二分部；
    所述泄压单元安装于所述第一分部内；所述第二支管与所述第一支管的连接处位于所述第一支管靠近所述第二分部的一侧。
  11. 根据权利要求10所述的冰箱，其特征在于：所述泄压单元包括泄压件，所述泄压件包括与所述三通阀上第二支管相连通的连接管及与大气相连通的通气管；通过改变所述泄压件的开关状态，阻断或连通所述连接管与所述通气管。
  12. 根据权利要求11所述的冰箱，其特征在于：所述泄压件外套接有减振套，所述减振套与所述第一分部相抵接。
  13. 根据权利要求9-12其中任一项所述的冰箱，其特征在于：所述三通阀通过模压成型。
  14. 根据权利要求9-12其中任一项所述的冰箱，其特征在于：所述真空保鲜盒上设有与其内腔相连通的抽气口；所述抽气口内设有单向通气单元，以在所述抽气装置抽气 时打开所述抽气口，并在抽气结束后密封所述抽气口。
  15. 根据权利要求14所述的冰箱，其特征在于：所述抽气接头上设有与所述抽气管道相连通的对接口，所述对接口用于与所述真空保鲜盒上的抽气口相对接，以在抽真空时与所述真空保鲜盒的内腔相连通；
    抽真空时，真空泵工作，所述真空保鲜盒内的气体依次通过所述抽气口、对接口、抽气管道、进气管、真空泵及排气管。
  16. 根据权利要求9-12其中任一项所述的冰箱，其特征在于：所述真空保鲜盒可拆卸连接于所述门体上。
  17. 根据权利要求9-12其中任一项所述的冰箱，其特征在于：所述门体上设有控制开关，用于开启抽真空操作。
  18. 一种冰箱，其特征在于，包括箱体、设置于所述箱体上的门体以及设置于所述门体上的真空制造装置，所述真空制造装置包括：
    抽气接头，其铰接于所述门体上；
    真空泵，其设置于所述门体内，所述真空泵通过抽气管道与所述抽气接头相连接；
    控制器，其设置于所述门体内，所述控制器与所述真空泵相连接，用于控制所述真空泵工作；
    气压传感器，设置于所述抽气管道上，所述气压传感器与所述控制器相连接；
    泄压阀，通过三通管与所述抽气管道相连接，所述三通管与所述泄压阀连接的一端设置有折弯部，所述折弯部环绕所述抽气管道设置，所述泄压阀与所述控制器相连接。
  19. 根据权利要求18所述的冰箱，其特征在于，所述三通管采用硅胶或者橡胶制成。
  20. 根据权利要求18所述的冰箱，其特征在于，所述冰箱还包括显示装置，所述显示装置设置于所述门体上，所述显示装置与所述控制器相连接。
  21. 根据权利要求20所述的冰箱，其特征在于，所述显示装置上配置有输入装置，以供调节所述抽气管道中的气压大小。
  22. 根据权利要求18所述的冰箱，其特征在于，所述真空制造装置还包括控制开关，所述控制开关与所述控制器相连接，所述控制开关用于控制所述真空制造装置的开启和关闭。
  23. 根据权利要求18所述的冰箱，其特征在于，所述门体上设置有铰接座，所述抽气接头铰接于所述铰接座上，以使所述抽气接头能以水平方向为轴进行翻转。
  24. 根据权利要求23所述的冰箱，其特征在于，所述抽气接头的顶部设置有磁性件，以使所述抽气接头向上翻转时能够吸附于所述门体上。
  25. 根据权利要求18所述的冰箱，其特征在于，所述抽气接头包括进气口、出气口以及设置于所述进气口和所述出气口之间的风腔，所述抽气管道的一端与所述出气口相连接，所述进气口的直径沿进气方向逐渐减小。
  26. 根据权利要求25所述的冰箱，其特征在于，所述抽气接头上设置有密封件，所述密封件环绕所述进气口设置。
  27. 根据权利要求18所述的冰箱，其特征在于，所述气压传感器设置于所述抽气管道靠近所述真空泵的一端，且所述气压传感器位于所述门体内。
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