WO2021227420A1 - 冰箱 - Google Patents

冰箱 Download PDF

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Publication number
WO2021227420A1
WO2021227420A1 PCT/CN2020/129903 CN2020129903W WO2021227420A1 WO 2021227420 A1 WO2021227420 A1 WO 2021227420A1 CN 2020129903 W CN2020129903 W CN 2020129903W WO 2021227420 A1 WO2021227420 A1 WO 2021227420A1
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WO
WIPO (PCT)
Prior art keywords
pipe
low
vacuum pump
protrusion
refrigerator
Prior art date
Application number
PCT/CN2020/129903
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English (en)
French (fr)
Inventor
张秋菊
潘毅广
许锦潮
张树栋
申乃雨
Original Assignee
海信（山东）冰箱有限公司
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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 WO2021227420A1 publication Critical patent/WO2021227420A1/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
    • F25D23/00—General constructional features
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the present disclosure belongs to the technical field of refrigerators, and particularly relates to a refrigerator.
  • a vacuum chamber In order to better store food, a vacuum chamber has been developed in the refrigerator, and the vacuum chamber is evacuated through a vacuum device.
  • the main function of vacuuming is to deoxygenate the vacuum chamber to prevent food from spoiling.
  • vibration and noise are generated and transmitted to the refrigerator box, which affects the overall performance of the refrigerator and seriously affects the user experience.
  • Some embodiments of the present disclosure provide a refrigerator, including:
  • a low-temperature storage compartment the low-temperature storage compartment is enclosed by an inner liner;
  • a low-pressure storage unit located in the low-temperature storage room, can be evacuated to form a pressure lower than the atmospheric pressure outside the refrigerator to facilitate the preservation of food;
  • a vacuum pump which is connected to the low-pressure storage unit, and is used to draw out the air in the low-pressure storage unit; it has an exhaust pipe and an exhaust pipe connected to the low-pressure storage unit;
  • the second pipeline communicates with the exhaust pipe;
  • the second pipeline includes a first pipe section, a second pipe section, and a third pipe section that are sequentially connected, and the first pipe section is connected to the exhaust pipe Connected
  • the lengths of the first pipe section, the second pipe section and the third pipe section are marked as L1, L2, L3, and the pipe diameters are marked as D1, D2, D3; where L1 ⁇ L2, L1 ⁇ L3; D1 ⁇ D2, D3 ⁇ D2 .
  • Figure 1 is a schematic diagram of the overall structure of a refrigerator provided by some embodiments of the present disclosure
  • FIG. 2 is a schematic diagram of a part of the structure of a refrigerator provided by some embodiments of the present disclosure
  • FIG. 3 is a schematic structural diagram of the relative positions of the drain pipe and the inner container of the refrigerator provided by some embodiments of the present disclosure
  • FIG. 4 is a structural schematic diagram of the relative positions of the vacuum pump assembly, the low-pressure storage unit, and the drain pipe of the refrigerator provided by some embodiments of the present disclosure
  • FIG. 5 is a schematic diagram of the connection of the second pipeline of the vacuum pump assembly of the refrigerator provided by some embodiments of the present disclosure
  • FIG. 6 is another angle of the relative position structure of the vacuum pump assembly, the low-pressure storage unit, and the drain pipe of the refrigerator provided by some embodiments of the present disclosure
  • FIG. 7 is a schematic diagram of the matching structure of a vacuum pump assembly and a vibration damping member of a refrigerator provided by some embodiments of the present disclosure
  • Figure 8 is a cross-sectional view of Figure 7;
  • Figure 9 is a cross-sectional view of a vacuum pump assembly of a refrigerator provided by some embodiments of the present disclosure.
  • Fig. 10 is a first structural schematic diagram of an elastic body of a refrigerator provided by some embodiments of the present disclosure.
  • FIG. 11 is a second schematic diagram of the structure of the elastic body of the refrigerator provided by some embodiments of the present disclosure.
  • Figure 12 is a cross-sectional view of an elastic body of a refrigerator provided by some embodiments of the present disclosure.
  • Fig. 13 is a schematic diagram of an exploded structure of a pump housing of a refrigerator provided by some embodiments of the present disclosure.
  • the refrigerator 1 includes a heat-insulating box body 2.
  • the box body 2 includes an outer shell 2a, an inner container 2b, and a thermal insulation layer (not shown) located between the two.
  • the box 2 defines a plurality of insulated low-temperature storage compartments to store food and other items.
  • these low-temperature storage compartments are respectively the refrigerating compartment 10 at the upper part and the freezing compartment at the bottom.
  • the low-temperature storage compartment can be closed by its corresponding door.
  • the refrigerating chamber 10 is provided with a refrigerating side-by-side door
  • the freezing chamber is provided with a freezing side-by-side 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 12 that can be maintained in a low-pressure state, and a vacuum pump assembly for drawing gas from the low-pressure storage unit 12.
  • the vacuum pump assembly may include a vacuum pump 3 and a pipeline connected between the vacuum pump 3 and the low-pressure storage unit 12.
  • the low-pressure storage unit 12 is provided in the refrigerating compartment 10. It should be understood that in other embodiments, the low-pressure storage unit 12 may also be arranged in another low-temperature storage room, 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 12 is located at the bottom of the refrigerating compartment 10 and is supported on the bottom wall of the refrigerating compartment 10. An adjacent position of the low-pressure storage unit 12 may be provided with a fresh-keeping container 11 suitable for storing vegetables and other foods with relatively high humidity;
  • the low-pressure storage unit 12 may be constructed independently of the box body 2 and then assembled in the box body 2. Referring to FIG. 2, in this embodiment, the low-pressure storage unit 12 has a substantially flat rectangular parallelepiped shape, and the sum of the width of the low-pressure storage unit 12 and the width of the fresh-keeping container 11 is slightly smaller than the width of the refrigerating compartment 10, thereby effectively distributing the refrigerating compartment The bottom space of 10 allows the fresh-keeping container 11 and the low-pressure storage unit 12 to be inserted into the refrigerating compartment 10 or pulled out of the refrigerating compartment 10.
  • the low-pressure storage unit 12 includes a casing 4 fixed in the refrigerating compartment 10 and a door 5 connected to the casing 4 and capable of being pushed into or out of the refrigerating compartment 10.
  • Fig. 2 is a schematic partial structural diagram of a refrigerator provided by some embodiments of the present disclosure.
  • the housing 4 has a box-shaped structure, which defines a flat low-pressure storage room with a food access port.
  • the access port is located at the front end of the housing 4 facing the user.
  • the outer side of the box wall of the housing 4 is provided with grid-like reinforcing ribs to increase the strength of the box wall of the housing 4 and avoid the deformation of the housing 4 due to the pressure difference between the inside and the outside after being evacuated.
  • the door body 5 can be provided with a ring-shaped sealing element, so that when the door body 5 is in the closed position, an airtight joint is formed between the housing 4 and the door body 5 to prevent gas from entering from the joint between the housing 4 and the door body 5 Low-pressure storage room.
  • the sealing element may also be provided at the front end of the housing 4.
  • the low-pressure storage chamber When the low-pressure storage chamber is closed by the door body 5 and the vacuum pump assembly is activated, the gas in the low-pressure storage chamber is evacuated, and the low-pressure storage chamber is in a low-pressure state.
  • the pressure in the low-pressure storage chamber is between a standard atmospheric pressure and an absolute vacuum. Since the air pressure in the low-pressure storage chamber 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 port of the low-pressure storage room, or pulled out to open the low-pressure storage room.
  • the rear side of the door body 5 is connected to a tray-shaped storage container for storing articles. The user obtains the articles in the low-pressure storage unit 12 or stores the articles in the low-pressure storage unit 12 by pushing or pulling the storage container into or out of the low-pressure storage room.
  • the door body 5 and the storage container together constitute a drawer unit that can be pushed into and pulled out of the housing 4.
  • FIG. 3 is a schematic structural diagram of the relative positions of the drain pipe and the inner liner of the refrigerator provided by some embodiments of the present disclosure
  • FIG. 4 is a schematic structural diagram of the relative positions of the vacuum pump assembly, the low-pressure storage unit and the drain pipe of the refrigerator provided by some embodiments of the present disclosure
  • Fig. 5 is a schematic diagram of the connection of the second pipeline of the vacuum pump assembly of the refrigerator provided by some embodiments of the present disclosure.
  • the refrigerator 1 has a drain pipe 13 for draining condensed water inside the refrigerator 1.
  • One end of the vacuum pump assembly is connected with the low-pressure storage unit 12, and the other end is connected with the drain pipe 13 of the refrigerator 1.
  • the vacuum pump assembly operates to draw out the air in the low-pressure storage unit 12 and deliver it to the drain pipe 13, and finally discharge the air from the refrigerator 1 through the drain pipe 13.
  • the food in other areas in the refrigerating compartment 10 will odor each other, which will affect the freshness preservation effect of the food.
  • the vacuum pump assembly includes a vacuum pump 3, a first pipe 14 connecting the vacuum pump 3 and the low-pressure storage unit 12, and a second pipe 15 connecting the vacuum pump 3 and the drain pipe 13.
  • the vacuum pump assembly is arranged on the inner container 2b of the refrigerating compartment 10 and is close to the bottom of the low-pressure storage unit 12.
  • the upper part of the rear wall of the inner container 2b of the refrigerating compartment 10 is recessed backward to form an accommodating cavity for accommodating the vacuum pump assembly; an area of the inner container 2b near the accommodating cavity is provided with a mounting hole for fixing the vacuum pump assembly.
  • the vacuum pump assembly is located in the accommodating cavity, and a separation space is formed between the cavity wall of the accommodating cavity, so as to reduce direct contact between the vacuum pump assembly and the inner container 2b, reduce vibration transmission, and effectively reduce noise.
  • FIG. 6 is another angle of the relative position structure of the vacuum pump assembly and the low-pressure storage unit and drain pipe of the refrigerator provided by some embodiments of the present disclosure
  • FIG. 7 is the cooperation of the vacuum pump assembly and the vibration damping member of the refrigerator provided by some embodiments of the present disclosure
  • Fig. 8 is a sectional view of Fig. 7
  • Fig. 9 is a sectional view of a vacuum pump assembly of a refrigerator provided by some embodiments of the present disclosure
  • Fig. 10 is a first structural schematic view of an elastic body of a refrigerator provided by some embodiments of the present disclosure
  • FIG. 12 is a cross-sectional view of the elastic body of the refrigerator provided by some embodiments of the present disclosure; .
  • the vacuum pump assembly includes a vacuum pump 3, a pump casing 6, and an elastic body 7 sleeved between the vacuum pump 3 and the pump casing 6.
  • the vacuum pump 3 is provided with an exhaust pipe 16 connected with the first pipe 14 and an exhaust pipe 17 connected with the second pipe 15.
  • the suction pipe 16 and the exhaust pipe 17 are arranged side by side, and are located at the same end of the vacuum pump 3.
  • a one-way valve 18 is provided on the first pipeline 14.
  • the one-way valve 18 is opened when the vacuum pump 3 pumps air, and is closed after the vacuum pump 3 finishes pumping, so as to effectively prevent the gas from flowing back to the low pressure through the vacuum pump 3 In the storage unit 12, the air extraction effect is improved and the pressure holding time of the low-pressure storage unit 12 is prolonged.
  • the second pipe 15 includes a first pipe section 15a, a second pipe section 15b, and a third pipe section 15c that are sequentially connected; wherein the first pipe section 15a and the exhaust of the vacuum pump 3
  • the pipe 17 is connected, and the third pipe section 15c is connected with the drain pipe 13.
  • the lengths of the above-mentioned first pipe section 15a, second pipe section 15b and third pipe section 15c are marked as L1, L2, L3 in turn, and the pipe diameters of each pipe section are marked as D1, D2, D3; where L1 ⁇ L2, L1 ⁇ L3; D1 ⁇ D2, D3 ⁇ D2.
  • an elastic body 7 is sleeved on the outside of the vacuum pump 3, and the elastic body 7 can absorb vibration on the vacuum pump 3 to reduce the noise generated when the vacuum pump 3 is working; in addition, the second pipeline is provided with multiple lengths and Pipe sections with different pipe diameters can further absorb noise to optimize the overall performance of the refrigerator and improve user experience.
  • the elastic body 7 has a main body 74 for mounting the vacuum pump 3.
  • the main body 74 is provided with a mounting cavity 74a that conforms to the shape of the vacuum pump 3; the radial dimension of the mounting cavity 74a of the main body 74 is smaller than The radial dimension of the corresponding position of the vacuum pump 3 makes the elastic body 7 close to the vacuum pump 3 and absorb the vibration on the vacuum pump 3 in time.
  • a positioning block 3a is provided on the end of the vacuum pump 3 opposite to the suction pipe 16 and the exhaust pipe 17; one end of the installation cavity 74a of the main body 74 is provided with a perforation 75 through which the suction pipe 16 and the exhaust pipe 17 pass, and the other end An end cover 76 matched with the end of the vacuum pump 3 is provided, and a positioning hole 76a matched with the positioning block 3a is provided on the end cover 76 to protect the end of the vacuum pump 3.
  • the periphery of the main body 74 is provided with a plurality of protrusions 77 arranged side by side along the central axis of the main body 74 and surrounding the main body 74.
  • the protrusion 77 includes a first protrusion 77a, a second protrusion 77b, and a third protrusion 77c that are sequentially arranged along the central axis of the main body 74 and have the same size; the third protrusion 77c is located at one end of the main body 74 close to the through hole 75 .
  • the area between the first protrusion 77a and the second protrusion 77b and the area between the second protrusion 77b and the third protrusion 77c are provided with a plurality of fourth protrusions 77d; wherein the outer diameter of the fourth protrusion 77d is smaller than The outer diameter of the first protrusion 77b.
  • a limit notch 70 is provided on the third protrusion 77c.
  • the above arrangement of the elastic body 7 can effectively reduce the transmission of the vibration of the vacuum pump 3 to the pump casing 6.
  • the pump housing 6 includes a first housing 6b and a second housing 6a.
  • the first housing 6b and the second housing 6a are clamped to be mounted on the elastic body 7. Outside.
  • the first housing 6b is provided with a protrusion
  • the second housing 6a is provided with a clamping hole that matches with the protrusion on the first housing 6b; the above pump housing 6 is arranged in a split type, which is convenient for disassembly and assembly. .
  • the inner wall of the second housing 6a is provided with a protruding strip 62, which is installed in the limiting notch 70 of the third protrusion 77c on the elastic body 7, so as to prevent the elastic body 7 from rotating in the circumferential direction along the central axis of the pump housing 6.
  • the length of the protruding strip 62 is half of the length of the pump casing 6 and is installed between the second protrusion 77 b and the third protrusion 77 c on the elastic body 7 to effectively prevent the elastic body 7 from moving along the central axis of the pump casing 6.
  • the above arrangement of the upper limit notch 70 of the elastic body 7 and the arrangement of the convex strip 62 on the inner wall of the pump casing 6 can effectively avoid the relative displacement between the elastic body 7 and the pump casing 6 to ensure the effective damping of the elastic body 7.
  • the pump housing 6 is provided with a connecting plate 61 fixed to the inner liner 2b; specifically, in some embodiments, the connecting plate 61 is provided on the second housing 6a.
  • the end of the connecting plate 61 away from the central axis of the pump casing 6 is provided with an installation notch 61a.
  • the area of the mounting notch 61a close to the edge of the connecting plate 61 is contracted.
  • the projection shape of the installation notch 61a on the connecting plate 61 is a superior arc shape.
  • the connecting plate 61 is provided on the outer periphery of the first shell 6b; wherein, the two edges where the first shell 6b and the second shell 6a are connected are provided with connecting plates 61.
  • the connecting plate 61 of the pump housing 6 is provided with a vibration damping member 8; the vibration damping member 8 is installed on the inner wall of the inner tank 2b; On the bladder 2b, that is, the vacuum pump assembly is fixed on the inner bladder 2b.
  • the arrangement of the vibration damping element 8 prevents the pump housing 3 from being rigidly connected to the inner bladder 2b, and can effectively reduce the transmission of the vibration of the vacuum pump assembly to the inner bladder 2b.
  • the arrangement of the damping member 8 on the connecting plate 61 of the pump casing 6 and the arrangement of the elastic body 7 outside the vacuum pump 3 can achieve two-stage damping and reduce the transmission of noise generated by the vacuum pump 3 to the inner container 2b, thereby reducing the refrigerator The overall noise.
  • the vibration damping member 8 includes a fixed column, a fixed pad 81a arranged at both ends of the fixed column, a fixing through hole 81c penetrating the fixed column and the fixed pad 81a; Installation slot 82.
  • the fixing post of the vibration damping element 8 is installed in the installation notch 61 a on the pump housing 6, and the connecting plate 61 on the pump housing 6 is installed in the installation groove 82 of the vibration damping element 8.
  • the size of the fixing pad 81a is larger than the size of the mounting hole on the inner liner 2b.
  • the end surface of the fixing pad 81a away from the fixing column is provided with protrusions, which are used to reduce the contact area between the fixing pad 81a and the inner liner 2b and improve the contact stability.
  • the vibration damping member 8 is arranged between the vacuum pump assembly and the inner container 2b to effectively absorb vibration and reduce the transmission of vibration.
  • the vacuum pump assembly and the inner container are in indirect hard contact, which can effectively avoid the transmission of noise generated when the vacuum pump is working, optimize the overall performance of the refrigerator, and improve the user experience.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

本公开提供了一种冰箱，其包括由内胆围成的低温储藏间室、位于低温储藏间室内的低压储藏单元及真空泵；真空泵与低压储藏单元相连通，其具有排气管和与低压储藏单元相连通的抽气管；排气管连接有第二管路，第二管路包括依次相连通的第一管段、第二管段及第三管段，且所述第一管段与所述排气管相连接；所述第一管段、第二管段及第三管段的长度依次记为L1、L2、L3，管径记为D1、D2、D3；其中L1＜L2，L1＜L3；D1＜D2，D3＜D2。

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202020770790.2、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
随着人们对更高生活品质的追求，越来越多的人注重养生，关注饮食的健康与营养。保鲜好、制冷快等因素，使得冰箱成为每个家庭必不可少的成员。
但业内普遍面临着一个冰箱保鲜领域的根源性难题，即使在低温环境下，食材中部分酶依然会保持较高活性，从而加速食材的氧化腐败，以致营养成分流失。针对行业内亟待解决的“营养维持”问题，行业内推出真空保鲜技术。
为了将食物更好的存储，现已发展出在冰箱内设置真空室，通过抽真空装置对真空室进行抽真空处理。抽真空的主要作用是对真空室内进行除氧，以防止食品变质。而抽真空装置工作时，产生振动噪音，并传递于冰箱箱体上，影响冰箱整体性能，严重影响用户的使用体验。
发明内容
本公开一些实施例提供了一种冰箱，包括：
低温储藏间室，所述低温储藏间室由内胆围成；
低压储藏单元，位于所述低温储藏间室内，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；
真空泵，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；其具有排气管和与所述低压储藏单元相连通的抽气管；
第二管路，其与所述排气管相连通；所述第二管路包括依次相连通的第一管段、第二管段及第三管段，且所述第一管段与所述排气管相连接；
所述第一管段、第二管段及第三管段的长度依次记为L1、L2、L3，管径记为D1、D2、D3；其中L1＜L2，L1＜L3；D1＜D2，D3＜D2。
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部分结构示意图；
图3为本公开一些实施例提供的冰箱的排水管与内胆的相对位置结构示意图；
图4为本公开一些实施例提供的冰箱的真空泵组件与低压储藏单元及排水管的相对位置结构示意图；
图5为本公开一些实施例提供的冰箱的真空泵组件第二管路的连接示意图；
图6为本公开一些实施例提供的冰箱的真空泵组件与低压储藏单元及排水管的另一角度的相对位置结构；
图7为本公开一些实施例提供的冰箱的真空泵组件与减振件的配合结构示意图；
图8为图7的剖视图；
图9为本公开一些实施例提供的冰箱的真空泵组件的剖视图；
图10为本公开一些实施例提供的冰箱的弹性体的结构示意图一；
图11为本公开一些实施例提供的冰箱的弹性体的结构示意图二；
图12为本公开一些实施例提供的冰箱的弹性体的剖视图；
图13为本公开一些实施例提供的冰箱的泵壳分解结构示意图。
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。
请参照图1-图13，一种冰箱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限定多个隔热的低温储藏间室以储藏食物等物品。在本实施例中，这些低温储藏间室分别是位于上部的冷藏室10、位于底部的冷冻室。低温储藏间室可由各自对应的箱门关闭。本公开中冷藏室10设置冷藏对开门，冷冻室设置冷冻对开门。
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12以及用以将气体从低压储藏单元12内抽离的真空泵组件。真空泵组件可以包括真空泵3以及连接在真空泵3和低压储藏单元12之间的管路。
在本公开一些实施例中，低压储藏单元12设置在冷藏室10内。应当理解，在其他的实施例中，低压储藏单元12也可以设置在其他低温储藏间室内，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12位于冷藏室10的底部，被支撑在冷藏室10的底壁上。低压储藏单元12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11；低压储藏单元12与保鲜容器11并列设置于冷藏室10的底部。
低压储藏单元12可独立于箱体2地构造后组装在箱体2内。请参照图2，在本实施例中，低压储藏单元12具有大致为扁平的长方体状，低压储藏单元12的宽度与保鲜容器11的宽度之和稍小于冷藏室10的宽度，从而有效分配冷藏室10的底部空间，使得保鲜容器11和低压储藏单元12均可插入冷藏室10内或从冷藏室10内拉出。
低压储藏单元12包括固定在冷藏室10内的壳体4以及连接于壳体4并可推入或退出冷藏室10的门体5。
图2为本公开一些实施例提供的冰箱的部分结构示意图。参照图2，壳体4具有箱形结构，它限定具有食物取放口的扁平低压储藏室。本实施例中，取放口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，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。
门体5可设置环形的密封元件，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。密封元件也可以设置在壳体4的前端。
当低压储藏室被门体5关闭且真空泵组件启动时，位于低压储藏室内的气体被抽离，低压储藏室处于低压状态。根据本公开一些实施例，在抽空程序结束时，低压储藏室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以关闭低压储藏室的取放口，或者拉出以打开低压储藏室。门体5的后侧连接托盘状的置物容器用以放置物品。用户通过将置物容器推入或拉出低压储藏室来获得位于低压储藏单元12内的物品或将物品存放在低压储藏单元12内。门体5和置物容器一起构成了可推入和拉出壳体4内的抽屉单元。
图3为本公开一些实施例提供的冰箱的排水管与内胆的相对位置结构示意图；图4为本公开一些实施例提供的冰箱的真空泵组件与低压储藏单元及排水管的相对位置结构示意图；图5为本公开一些实施例提供的冰箱的真空泵组件第二管路的连接示意图。
如图3-图5所示，冰箱1具有用于排出冰箱1内部冷凝水的排水管13。真空泵组件一端与低压储藏单元12相连通，另一端与冰箱1的排水管13相连通。真空泵组件运作，将低压储藏单元12内的空气抽出并输送至排水管13，最终由排水管13排出冰箱1。以避免将由低压储藏单元12内抽出的气体直接排入冰箱1内部而使冷藏室10内其它区域的食物互相串味，影响食品的保鲜效果。
真空泵组件包括真空泵3、连接真空泵3与低压储藏单元12的第一管路14、连接真空泵3与排水管13的第二管路15。
真空泵组件设于冷藏室10的内胆2b上，且靠近低压储藏单元12的底部。冷藏室10的内胆2b的后壁上部分向后凹陷形成容置腔，以容纳真空泵组件；内胆2b靠近容置腔的区域设有安装孔，用于固定真空泵组件。本实施例中，真空泵组件位于容置腔内，且与容置腔的腔壁之间形成有分离空间，以减少真空泵组件与内胆2b的直接接触，减少振动的传递，有效降噪。
图6为本公开一些实施例提供的冰箱的真空泵组件与低压储藏单元及排水管的另一角度的相对位置结构；图7为本公开一些实施例提供的冰箱的真空泵组件与减振件的配合结构示意图；图8为图7的剖视图；图9为本公开一些实施例提供的冰箱的真空泵组件的剖视图；图10为本公开一些实施例提供的冰箱的弹性体的结构示意图一；图11为本公开一些实施例提供的冰箱的弹性体的结构示意图二；图12为本公开一些实施例提供的冰箱的弹性体的剖视图；图13为本公开一些实施例提供的冰箱的泵壳分解结构示意图。
如图6-图13所示，真空泵组件包括真空泵3、泵壳6及套设于真空泵3与泵壳6之间的弹性体7。真空泵3上设有与第一管路14相连通的抽气管16及与第二管路15相连通的排气管17。抽气管16与排气管17并列设置，且位于真空泵3的同一端。本实施例中，第 一管路14上设置有单向阀18，单向阀18在真空泵3抽气时打开，并于真空泵3抽气结束后关闭，以有效防止气体通过真空泵3倒流回低压储藏单元12内，从而改善抽气效果并延长低压储藏单元12的保压时间。
在本公开一些实施例中，如图6所示，第二管路15包括依次相连通的第一管段15a、第二管段15b及第三管段15c；其中第一管段15a与真空泵3的排气管17相连接，第三管段15c与排水管13相连接。以上第一管段15a、第二管段15b及第三管段15c的长度依次记为L1、L2、L3，各管段的管直径记为D1、D2、D3；其中L1＜L2，L1＜L3；D1＜D2，D3＜D2。本实施例中，L2：L1∈[7，12]，L3：L1∈[7，14]；D1＝D3，D2：D1∈[1.5，5]。通过第一管段15a、第二管段15b及第三管段15c的长度及管径设置使气流流经的管道截面先突然扩大，尔后再突然收缩，使声波传播方向发生改变，在第二管路15内发生反射、干涉等现象，从而达到消声的目的。
真空泵工作时，低压储藏单元12内的空气依次经过第一管路14及设于第一管路14上的单向阀18、抽气管16、真空泵3、排气管17、第二管路15最终输送至排水管13，最终由排水管13排出箱体2。本实施例中，真空泵3外侧套设有弹性体7，弹性体7能够吸收真空泵3上的振动，以减少真空泵3工作时所产生的噪音；另外,在第二管路设置为多个长度和管径不同的管段，以进一步吸收噪音，以优化冰箱的整体性能，提高用户体验。
如图7-图12所示，弹性体7具有安装真空泵3的主体部74，主体部74上设有与真空泵3形状相一致的安装腔74a；主体部74的安装腔74a的径向尺寸小于真空泵3对应位置的径向尺寸，使弹性体7紧贴真空泵3，以及时吸收真空泵3上的振动。
真空泵3上与设置抽气管16和排气管17相对的一端设有定位块3a；主体部74的安装腔74a的一端设有供抽气管16与排气管17穿出的穿孔75，另一端设有与真空泵3端部相配合的端盖76，端盖76上设有与定位块3a相配合的定位孔76a；以对真空泵3的端部进行保护。
主体部74的外围设有多个沿主体部74的中心轴并列设置并环绕主体部74的凸起77。凸起77包括沿主体部74中心轴方向依次设置且尺寸相同的第一凸起77a、第二凸起77b和第三凸起77c；其中第三凸起77c位于主体部74靠近穿孔75的一端。第一凸起77a和第二凸起77b之间区域及第二凸起77b和第三凸起77c之间区域设有多个第四凸起77d；其中，第四凸起77d的外径小于第一凸起77b的外径。第三凸起77c上设有限位缺口70。
以上弹性体7的设置，能够有效降低真空泵3振动向泵壳6的传递。
在本公开一些实施例中，如图13所示，泵壳6包括第一壳体6b和第二壳体6a，第一壳体6b与第二壳体6a相卡接以安装于弹性体7外侧。具体的，第一壳体6b上设有凸块，第二壳体6a上设有与第一壳体6b上的凸块相配合的卡孔；以上泵壳6分体式的设置，方 便拆装。
第二壳体6a的内壁上设有凸条62，凸条62安装于弹性体7上第三凸起77c的限位缺口70内，能够避免弹性体7沿泵壳6中心轴的周向旋转。凸条62长度为泵壳6长度的一半，并安装于弹性体7上第二凸起77b和第三凸起77c之间，能够有效避免弹性体7沿泵壳6的中心轴方向移动。以上弹性体7上限位缺口70的设置及泵壳6内壁上的凸条62设置能够有效避免弹性体7与泵壳6之间发生相对位移，以确保弹性体7的有效减振。
泵壳6上设有与内胆2b固定的连接板61；具体的，在一些实施例中，连接板61设于第二壳体6a上。连接板61远离泵壳6中心轴的端部设有安装缺口61a。沿远离泵壳6中心轴的方向，安装缺口61a靠近连接板61边沿的区域呈收缩状，以上设置能够确保安装缺口61a具有足够的容纳空间，并能够有效固定其内所安装部件，避免脱落。在一些实施例中，安装缺口61a于连接板61上的投影形状呈优弧状。在一些实施例中，连接板61设于第一壳体6b的外周上；其中，第一壳体6b与第二壳体6a相对接的两个边沿处均设有连接板61。
泵壳6的连接板61上设有减振件8；减振件8安装于内胆2b的内壁；螺钉穿过减振件8，并与安装孔配合，以将减振件8固定于内胆2b上，即将真空泵组件固定于内胆2b上。减振件8的设置避免了泵壳3与内胆2b硬性连接，能够有效降低真空泵组件的振动向内胆2b的传递。
泵壳6的连接板61上的减振件8的设置，及真空泵3外套设弹性体7的设置，能够实现两级减振，降低真空泵3所产生噪音向内胆2b的传递，从而降低冰箱的整体噪音。
减振件8包括固定柱、设置于固定柱两端部的固定垫81a、贯穿固定柱及固定垫81a的固定通孔81c；设置于固定柱两端部的固定垫81a之间形成环状的安装槽82。减振件8的固定柱安装于泵壳6上的安装缺口61a内，泵壳6上的连接板61安装于减振件8的安装槽82内。其中，固定垫81a的尺寸大于内胆2b上安装孔的尺寸。本实施例中，固定垫81a远离固定柱的端面上设有凸起，用于减小固定垫81a与内胆2b的接触面积，提高接触稳定性。
安装时，将真空泵3、泵壳6及弹性体7组装为一体；并将减振件8的固定柱安装于泵壳6上连接板61的安装缺口61a内；螺钉穿过安装于泵壳6上的减振件8上的固定通孔81c，并与内胆2b上的安装孔相配合，以实现螺钉与内胆2b的固定，即完成真空泵组件与内胆2b的固定。
在本公开一些实施例中，减振件8设于真空泵组件与内胆2b之间，以有效吸收振动，减少振动的传递。通过以上设置使真空泵组件与内胆非直接硬性接触，能够有效避免真空泵工作时所产生噪音的传递，优化冰箱的整体性能，提高用户体验。
以上所述，仅是本公开的较佳实施例而已，并非是对本公开作其它形式的限制，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，但是凡是未脱离本公开技术方案内容，依据本公开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，仍属于本公开技术方案的保护范围。

Claims (10)

  1. 冰箱，其特征在于：包括：
    低温储藏间室，所述低温储藏间室由内胆围成；
    低压储藏单元，位于所述低温储藏间室内，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；
    真空泵，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；其具有排气管和与所述低压储藏单元相连通的抽气管；
    第二管路，其与所述排气管相连通；所述第二管路包括依次相连通的第一管段、第二管段及第三管段，且所述第一管段与所述排气管相连接；
    所述第一管段、第二管段及第三管段的长度依次记为L1、L2、L3，管径记为D1、D2、D3；其中L1＜L2，L1＜L3；D1＜D2，D3＜D2。
  2. 根据权利要求1所述的冰箱，其特征在于：L2：L1∈[7，12]，L3：L1∈[7，14]；D1＝D3，D2：D1∈[1.5，5]。
  3. 根据权利要求1所述的冰箱，其特征在于：
    所述真空泵的外侧套设有弹性体，所述弹性体包括：
    主体部，其上设有容置所述真空泵的安装腔；
    凸起，环绕设置于所述主体部的外围。
  4. 根据权利要求3所述的冰箱，其特征在于：所述抽气管与排气管设于所述真空泵的一端，所述真空泵的另一端设有定位块；所述安装腔一端设有供所述抽气管与排气管穿出的穿孔，另一端设有与所述真空泵的端部相配合的端盖，所述端盖上设有与所述定位块相配合的定位孔。
  5. 根据权利要求4所述的冰箱，其特征在于：
    所述凸起包括沿所述主体部中心轴方向依次设置且尺寸相同的第一凸起、第二凸起和第三凸起；其中第三凸起位于所述主体部靠近所述穿孔的一端；
    所述第一凸起和所述第二凸起之间区域及所述第二凸起和所述第三凸起之间区域设有多个第四凸起；且所述第四凸起的外径小于所述第一凸起的外径。
  6. 根据权利要求5所述的冰箱，其特征在于：
    所述第三凸起上设有限位缺口；
    所述弹性体的外侧套设有泵壳，所述泵壳固定连接于所述内胆上；所述泵壳内壁上设有凸条，所述凸条安装于所述限位缺口内。
  7. 根据权利要求6所述的冰箱，其特征在于：
    所述泵壳上设有与所述内胆固定的连接板，所述连接板与所述内胆之间设有减振件。
  8. 根据权利要求7所述的冰箱，其特征在于：
    所述连接板远离所述泵壳中心轴的端部设有安装缺口；
    所述减振件包括安装于所述泵壳上安装缺口内的固定柱、设于所述固定柱两端部的固定垫；其中，设于所述固定柱两端部的固定垫之间形成容纳所述泵壳上连接板的安装槽。
  9. 根据权利要求6所述的冰箱，其特征在于：所述内胆上形成有向后凹陷的容置腔；所述容置腔容纳至少部分所述泵壳，且所述容置腔的腔壁与所述泵壳之间形成有分离空间。
  10. 根据权利要求1-6其中任一项所述的冰箱，其特征在于：
    所述冰箱上设有排水管；
    所述第二管路连通所述排气管与所述排水管；
    所述真空泵工作时，所述低压储藏单元内的空气依次经过所述抽气管、真空泵、排气管、第二管路输送至所述排水管，最终由所述排水管排出所述冰箱。
PCT/CN2020/129903 2020-05-11 2020-11-18 冰箱 WO2021227420A1 (zh)

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WO2021114957A1 (zh) * 2019-12-12 2021-06-17 海信（山东）冰箱有限公司 冰箱

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