WO2021042930A1 - 商用立式冷柜 - Google Patents

商用立式冷柜 Download PDF

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Publication number
WO2021042930A1
WO2021042930A1 PCT/CN2020/106722 CN2020106722W WO2021042930A1 WO 2021042930 A1 WO2021042930 A1 WO 2021042930A1 CN 2020106722 W CN2020106722 W CN 2020106722W WO 2021042930 A1 WO2021042930 A1 WO 2021042930A1
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WO
WIPO (PCT)
Prior art keywords
air
centrifugal fan
volute
baffle
outer protrusion
Prior art date
Application number
PCT/CN2020/106722
Other languages
English (en)
French (fr)
Inventor
徐磊
蒋彬
吴福民
张书锋
尚鑫
李彦玫
Original Assignee
青岛海尔特种电冰柜有限公司
海尔智家股份有限公司
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.)
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Publication date
Application filed by 青岛海尔特种电冰柜有限公司, 海尔智家股份有限公司 filed Critical 青岛海尔特种电冰柜有限公司
Publication of WO2021042930A1 publication Critical patent/WO2021042930A1/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
    • 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
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • 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
    • F25D23/006—General constructional features for mounting refrigerating machinery components
    • 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

Definitions

  • the invention belongs to the technical field of refrigeration, and in particular relates to a commercial vertical freezer.
  • refrigeration equipment are electrical equipment frequently used in people's daily lives.
  • commercial vertical refrigerators they are mainly placed in places such as shopping malls and supermarkets, and beverages are mainly placed inside for consumers to take directly.
  • commercial vertical refrigerators are designed with glass doors so that external consumers can directly observe the internal storage conditions.
  • the invention provides a commercial vertical freezer, which can increase the storage space of the commercial vertical freezer.
  • a commercial vertical freezer which is characterized in that it comprises:
  • a cabinet the cabinet includes an outer shell and an inner bladder, the inner bladder is arranged in the outer shell, and an insulation layer is formed between the inner bladder and the outer shell;
  • a refrigeration circuit including a compressor, a condenser, a throttling device and an evaporator connected together;
  • the back of the inner liner is provided with an air duct, the air duct has a return air outlet and an air outlet, the air duct is provided with a centrifugal fan and the evaporator, and the inner liner is also provided with an outwardly protruding part
  • the centrifugal fan is arranged opposite to the outer protrusion, and an air inlet area for the centrifugal fan to take in is formed between the centrifugal fan and the outer protrusion.
  • a cover plate is provided in the liner, the air duct is formed between the cover plate and the inner wall of the liner, and the centrifugal fan and the evaporator are located between the cover plate and the outer wall. Between the protrusions.
  • the centrifugal fan includes a motor, a centrifugal fan, and a volute, the volute is installed on the inner surface of the cover plate, the air inlet of the volute faces the outer protrusion, and the centrifugal fan is located The volute is in and connected with the rotating shaft of the motor.
  • baffle is further provided on the volute, and the baffle abuts on the outer protrusion.
  • the evaporator is located below the centrifugal fan and in the outer protrusion.
  • baffle is distributed around the air inlet of the volute, and both ends of the baffle extend to the corresponding side of the evaporator; the outer protrusion, the evaporator, the An air inlet cavity is formed between the baffle and the volute.
  • first gasket is provided between the baffle and the outer protrusion, and a second gasket is provided between the two sides of the cover plate and the inner liner.
  • a first groove is formed on the outer protrusion, and the first gasket is located in the first groove.
  • the air return port is formed between the lower end of the baffle and the inner liner, and the air outlet is formed between the top of the volute and the upper end of the baffle.
  • a second groove is formed on the inner surface of the cover plate, and the edge of the volute is inserted into the second groove.
  • the advantages and positive effects of the present invention are: by providing an outer protrusion on the back of the inner liner, the outer protrusion will form a concave groove structure on the inner surface of the inner liner, so that the centrifugal fan The evaporator and the evaporator are arranged in the outer protrusion. Because the evaporator and the centrifugal fan are configured on the back of the inner tank, items can be stored in the upper storage space of the inner tank.
  • Figure 1 is a schematic structural diagram of an embodiment of a commercial vertical freezer according to the present invention.
  • Figure 2 is a cross-sectional view of the commercial vertical freezer in Figure 1;
  • Fig. 3 is a partial enlarged schematic diagram of area A in Fig. 2;
  • Figure 4 is one of the assembly diagrams of the inner tank in the commercial vertical freezer of the present invention.
  • Figure 5 is the second assembly diagram of the inner tank in the commercial vertical freezer of the present invention.
  • Figure 6 is a schematic diagram of the structure of the inner tank in the commercial vertical freezer of the present invention.
  • Figure 7 is an assembly diagram of the cover plate and the centrifugal fan of the present invention.
  • Figure 8 is an assembly diagram of the cover plate and the centrifugal fan of the present invention.
  • FIG. 9 is one of the structural schematic diagrams of the centrifugal fan of the present invention.
  • Figure 10 is the second structural diagram of the centrifugal fan of the present invention.
  • Figure 11 is one of the assembly diagrams of the cover plate and the air supply plate of the present invention.
  • Figure 12 is the second assembly diagram of the cover plate and the blower plate of the present invention.
  • the terms “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “inner”, “outer”, etc. indicate directions or positions The term of relationship is based on the direction or position relationship shown in the drawings, which is only for ease of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as Restrictions on the invention.
  • the terms “first” and “second” are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.
  • the commercial vertical freezer provided by the present invention adopts air cooling for cooling, and includes a cabinet body 1, a glass door 2, a refrigeration circuit 3, and a fan.
  • the cabinet 1 includes an outer shell 11 and an inner liner 12 arranged in the outer shell 11.
  • An insulation layer (not shown) is formed between the outer shell 11 and the inner liner 12 by foaming or the like, and the inner liner 12 forms a storage cavity. ⁇ 10 ⁇ Body 10.
  • the refrigeration circuit 3 usually includes a compressor 31, a condenser 32, a throttling device (not shown), and an evaporator 33 connected together.
  • the evaporator 33 is arranged in the cabinet 1 and realizes air-cooled refrigeration through a fan.
  • the fan adopts a centrifugal fan 4 to reduce the overall size of the fan.
  • an air duct 100 is provided on the back of the inner liner 12, and the air duct 100 has a return air inlet 101 and an air outlet 102.
  • the fan 4 and the evaporator 33 are arranged in the air duct 100, and the inner liner 12 is also provided with an outer protrusion 121 protruding outward.
  • the centrifugal fan 4 and the outer protrusion 121 are arranged oppositely, and a space between the centrifugal fan 4 and the outer protrusion 121 is formed
  • the air inlet area 103 for the centrifugal fan 4 to enter air.
  • the centrifugal fan 4 and the evaporator 33 can be installed on the back of the inner tank 12. In this way, it can be avoided that the centrifugal fan 4 and the evaporator 33 are installed on the top of the inner tank 12 and the head space cannot be stored and displayed, thereby effectively increasing the display area and forming a large-area display on the front of the glass door 2 Area.
  • the outer protrusion 121 is also formed on the back of the inner liner 12, the outer protrusion 121 forms a recessed groove structure on the inner wall of the inner liner 12, forming an extra space, and the outer protrusion 121 will further increase the depth of the inner liner 12 size.
  • the centrifugal fan 4 and the evaporator 33 are installed through the extra space formed by the outer protrusion 121.
  • the storage space on the top of the inner liner 12 can be fully utilized for storage.
  • the centrifugal fan 4 and the evaporator 33 do not occupy too much space at the bottom of the inner tank 12, thereby effectively increasing the overall storage capacity of the inner tank 12.
  • the distance between the centrifugal fan 4 and the inner liner 12 is larger, so as to obtain a larger space for the air inlet area, which can be more
  • the air inlet capacity of the centrifugal fan 4 is effectively improved to ensure that the air outlet speed of the air duct 100 meets the requirements of refrigeration.
  • the air duct 100 can be formed by disposing a cover plate 5 in the liner 12. Specifically, the cover plate 5 is installed on the back of the liner 12 and covers the outer protrusion 121, the cover plate 5 and the inner wall of the liner 12 An air duct 100 is formed therebetween, and the centrifugal fan 4 and the evaporator 33 are located between the cover plate 5 and the outer protrusion 121. The centrifugal fan 4 and the evaporator 33 are shielded by the cover plate 5, and an air duct 100 is formed between the cover plate 5 and the inner wall of the inner liner 12.
  • an air return port 101 is formed between the lower end of the cover plate 5 and the inner liner 12, and an air outlet 102 is formed between the upper end of the cover plate 5 and the inner liner 12.
  • the cold air output from the air outlet 102 enters the storage cavity 10. While the cold air cools the items in the storage cavity 10, the cold air gradually drops and enters the air duct 100 from the return air outlet 101. in.
  • the centrifugal fan 4 in order to meet the requirements of compact installation while ensuring air intake, the centrifugal fan 4 includes a motor 41, a centrifugal fan 42, and a volute 43.
  • the volute 43 is installed on the inner surface of the cover plate 5.
  • the air inlet 431 of the volute 43 faces the outer protrusion 121, and the centrifugal fan 42 is located in the volute 43 and connected to the rotating shaft of the motor 41.
  • the air inlet 431 on the volute 43 is disposed facing the outer protrusion 121, so that the air inlet 431 forms a larger air inlet area 103 on the front side of the air inlet to meet the air inlet requirement of the centrifugal fan 4.
  • the volute 43 can be fixed and installed on the inner surface of the cover plate 5 by screws, and the volute 43 can be in the form of a cover, and an installation cavity for installing the centrifugal fan 42 is formed between the volute 43 and the cover plate 5. In this way, the thickness of the volute 43 can be reduced more effectively, and the cover plate 5 is used to complete the assembly of the centrifugal fan 4.
  • the inner surface of the cover plate 5 is formed with a second groove 51, and the edge of the volute 43 is inserted into the second groove 51 to complete the assembly. In this way, the volute 43 can be installed conveniently and accurately, and the volute 43 and An air pressurized space with better sealing performance is formed between the cover plates 5 to increase the air outlet speed.
  • the motor 41 is fixedly installed on the cover plate 5 through a bracket 411.
  • the centrifugal fan 4 is assembled on the cover plate 5, and then assembled into the inner container 12 through the cover plate 5 together.
  • the air outlet 102 it is formed between the top of the volute 43 and the upper end of the cover plate 5.
  • a baffle 44 is further provided on the volute 43, and the baffle 44 abuts against the outer protrusion 121.
  • the baffle 44 will abut against the outer protrusion 121 to pass the baffle 44 To limit the size of the space in and out of the air inlet area 103. In this way, it can be avoided that the distance between the air inlet 431 and the outer protrusion 121 due to assembly errors is too small to affect the air intake.
  • the length of the baffle 44 extending from the volute 43 to the inner liner 12 is between 10 mm and 50 mm, so as to meet the air intake requirements of the centrifugal fan 4.
  • the evaporator 33 below the centrifugal fan 4, and the evaporator 33 is also located in the outer protrusion 121 and below the centrifugal fan 4. In this way, the air sucked in from the return air inlet 101 first passes through the evaporator 33 and then enters the volute 43 through the air inlet area 103 and is finally output from the air outlet 102. The cold air is directly output from the air outlet 102 after being accelerated by the centrifugal fan 4, so that a high air outlet speed can be protected to obtain a good cooling effect.
  • the baffle 44 is distributed around the air inlet of the volute 43, and both ends of the baffle 44 respectively extend to the corresponding sides of the evaporator 33; the outer protrusion 121, the evaporator 33.
  • An air inlet cavity is formed between the baffle 44 and the volute 43.
  • the baffle 44 can also cooperate with the evaporator 33 below to make a strong suction to the evaporator 33 at the bottom, so that the air return can be made 101 can better suck the air in the storage cavity 10 into the air duct 100.
  • a first gasket 401 is provided between the two sides of the cover plate 5 and a second gasket 501 is provided between the two sides of the cover plate 5 and the inner liner 12.
  • the first gasket 401 can seal between the baffle 44 and the outer protrusion 121
  • the formed connecting area prevents air from leaking from the connecting part between the baffle 44 and the outer protrusion 121; similarly, the second gasket 501 can seal the connecting area between the cover plate 5 and the inner liner 12.
  • a third sealing gasket 402 is provided at the connection part between the baffle 44 and the evaporator 33, so as to avoid air loss.
  • the heat exchange by the evaporator 33 is sucked into the centrifugal fan 4 from one side of the evaporator 33.
  • the baffle 44 has an arc-shaped plate structure as a whole, in order to facilitate the positioning and installation of the first gasket 401, a first groove 122 is formed on the outer protrusion 121, and the first gasket 401 is located in the first groove 122.
  • an air supply plate 6 can be configured.
  • the air supply plate 6 is detachably installed on the inner tank 12 to supply air.
  • the plate 6 covers the air outlet 102.
  • the air supply plate 6 can be detachably installed on the inner tank 12, and can be connected by a buckle or a screw, so as to facilitate the disassembly and replacement of the operator.
  • the air supply plate 6 may adopt the structure of an air supply net plate, and the air supply plate 6 mainly functions to block the air outlet 102. To prevent debris from falling into the air outlet 102.
  • the cold air output from the air outlet 102 passes through the mesh of the air supply plate 6 and is transmitted upward to the top of the storage cavity 10, and then the cold air flows down from the top to cool the items.
  • the air supply plate 6 is along the height A plurality of air outlets 60 are arranged in the direction, and the cold air can be output into the storage cavity 10 through the air outlets 60 at different height positions to cool items at different height positions.
  • the upper and lower edges of the air outlet 60 are also provided with air guide plates 601.
  • the air guide plate 601 can guide the wind output from the air outlet 60 to output laterally, so as to obtain a larger cross-sectional direction of the inner tank 12.
  • the air supply distance can improve the uniformity of cold air distribution.
  • the air blowing plate 6 includes an air blowing substrate 61, and the air blowing substrate 61 extends upward along the air outlet direction of the air outlet 102.
  • the blower substrate 61 is provided with a blower port 60, and the blower substrate 61 is directly installed on the upper part of the cover plate 5.
  • the cold air output from the blower port 102 forms a space between the blower substrate 61 and the inner wall of the liner 12 During the transmission, the cold air will be output from the air outlet 60 to the storage cavity 10 during the transmission.
  • the air supply panel 6 further includes an air supply panel 62, which is detachably installed on the air supply panel.
  • the air blowing panel 62 is installed on the upper part of the air blowing base plate 61 according to actual use needs to further distribute the air blowing at the top.
  • the air blowing panel 62 is also provided with an air blowing port 60 correspondingly.
  • the blower substrate 61 can be installed on the upper part of the cover plate 5 by plug connection; similarly, the blower panel 62 can also be installed on the upper part of the blower substrate 61 by plug connection.
  • the air supply base plate 61 and the air supply panel 62 can be detachably installed and fixed in the inner tank 12 by means of a buckle or screw fixing.
  • the air supply panel 62 may further include at least two splicing sub-boards 621, Two adjacent splicing sub-boards 621 are spliced together, and the lowermost splicing sub-board 621 is detachably installed above the blowing base plate 61.
  • the inner liner 12 includes at least a cover plate 5 to form an air duct, and then the structural form of the air blowing plate 6 is correspondingly configured according to the overall size of the cabinet 1.
  • a corresponding number of splicing sub-boards 621 are configured as required to meet the requirement of uniform air supply in the height direction.
  • the two splicing sub-boards 621 are spliced together in a plug-in manner, and each splicing sub-board 621 can be installed in the inner tank 12 in a snap or screw connection manner.
  • the two sides of the inner surface of the air supply plate 6 are respectively provided with baffle plates 63 extending along the air outlet direction of the air outlet 102, and the lower ends of the two baffle plates 63 are connected to Together, a V-shaped structure 630 is formed.
  • the V-shaped structure 630 faces the air outlet 102.
  • a plurality of air outlets are respectively provided on both sides of the air blowing plate 6, and the air outlet 60 is located outside the baffle 63 on the corresponding side.
  • the cold air output from the air outlet 102 is guided through the V-shaped structure 630, flows upward along the baffle 63, and is output into the storage cavity 10 from the corresponding air outlet 60 outside the baffle 63. Since the V-shaped structure 630 faces the air outlet 102, the V-shaped structure 630 can effectively divide the air flow output from the air outlet 102, so that the outer sides of the baffles 63 on both sides distribute the air flow evenly, and achieve uniform air delivery. Requirements.
  • the side edge of the air supply plate 6 is also provided with ribs 64 which abut on the inner wall of the inner tank 12, and the air supply channel 200 is formed between the ribs 64 and the deflector 63 on the same side.
  • the ribs 64 are provided on the edges of the air supply plate 6, so that the air supply channel 200 is formed between the corresponding ribs 64 and the deflector 63, so that the air output from the air outlet 102
  • the cold air flows through the V-shaped structure 630 and then flows in the air supply channel 200 correspondingly.
  • the ribs 64 and the baffle 63 and the inner wall of the inner liner 12 are respectively provided with sealing gaskets.
  • the sealing gaskets can improve the air tightness of the air supply channel 200 to prevent cold air from being transferred from the air supply channel 200 during the transmission process.
  • the gap between the blower plate 6 and the inner liner 12 leaks.
  • first air guide ribs 631 are formed on both sides of the inner surface of the air supply base plate 61, and the lower ends of the two first air guide ribs 631 Connected together and form a V-shaped structure 630.
  • two air guide ribs 632 are formed on both sides of the inner surface of the air supply panel 62, and the second air guide ribs 632 and the first air guide ribs 631 on the same side are connected together to form the air guide plate 63.
  • the side edge of the blowing base plate 61 is also provided with a third air guiding rib 641, and a first air blowing sub-channel is formed between the third air guiding rib 641 and the first air guiding rib 631 on the same side;
  • the side edge of the wind panel 62 is also provided with a fourth air guide rib 642, and a second air supply sub-channel is formed between the fourth air guide rib 642 and the second air guide rib 632 on the same side;
  • the air sub-channel communicates with the second air-supply sub-channel to form the air-supply channel 200, and at the same time, the third air-guiding rib 641 and the fourth air-guiding rib 642 on the same side are connected together to form a rib 64.
  • the air supply openings 60 in the height direction can evenly distribute the cold air, so that the storage cavity 10 can evenly distribute the cold air in the height direction.
  • 60 is provided with a corresponding wind baffle 602 in the air duct 200, and the wind baffle 602 can guide part of the cold air to be output through the air outlet 60 at the corresponding position during the cold air transmission process.
  • the wind deflector 602 is arranged between the deflector 63 and the rib 64, and for the requirement of cold air diversion, the wind deflector 602 has various structural forms.
  • the wind deflector 602 is a straight plate, and the wind deflector 602 is arranged opposite to the air outlet 60.
  • the wind deflector 602 is arranged obliquely in the air duct 200, and the upper part of the wind deflector 602 is close to the air outlet 60 , And the lower part of the wind deflector 602 is far away from the air outlet 60.
  • the wind deflector 602 is an arc-shaped plate, the wind deflector 602 is fixed above the corresponding air outlet 60, and the free end of the wind deflector 602 extends downward.
  • the air baffle 602 can guide the cold air to be output to the storage through the air outlet 60 during the cold air delivery process. In the object cavity 10, the output of the cold air is evenly distributed in the height direction.
  • the volute 43 is arranged on the inner surface of the upper part of the cover plate 5, and the evaporator 33 is located on the cover plate 5.
  • the cover plate 5 is also provided with an auxiliary air outlet 52; an air outlet cavity is formed between the volute 43 and the cover plate 5, and the auxiliary air outlet 52 is connected to the air outlet cavity.
  • the cold air after heat exchange through the evaporator 33 enters the centrifugal fan 4, and most of the cold air will be output to the air supply channel 200 through the air outlet 102, so as to distribute the cold air to the area on the top of the cover plate 5;
  • the remaining part of the cold air in the centrifugal fan 4 is directly output to the storage cavity 10 through the auxiliary air outlet 52, so as to blow cold air on the items located around the cover plate 5, so that the bottom of the storage cavity 10 can be It can also directly obtain cold air refrigeration to improve the uniformity of temperature distribution in the storage cavity.
  • the bottom of the volute 43 is also provided with a downwardly extending connecting air duct 431, and the auxiliary air outlet 52 is connected to the air outlet cavity through the connecting air duct 431.
  • a flanging structure 53 is formed at the bottom of the cover plate 5, and the flanging structure 53 extends toward the glass door 2, and a shelf 7 is also provided at the bottom of the inner liner 12 to rest. The rear end of the shelf 7 is overlapped on the flange structure 53. Specifically, during actual use, refrigerated items will be placed on the shelf 7 so that the air return channel 300 can be formed between the refrigerated items on the shelf 7 and the bottom of the inner container 12.
  • part of the cold air in the storage cavity enters the return air duct 300 through the gap between the refrigerated items on the shelf 7, and part of the cold air is directly sucked into the air from the front side of the shelf 7 Return air channel 300.
  • the cold air can be evenly distributed and flowed in the cross-sectional direction of the inner tank 12 to achieve a more uniform cooling effect.
  • the items on the shelf 7 and the bottom of the liner 12 are used to form a return air passage 300 extending to the glass door 2, which can satisfy that the air around the glass door 2 is effectively sucked into the air passage 100 for heat exchange. In order to obtain a good return air effect.
  • the lower surface of the flanging structure 53 is also provided with guide fins 54.
  • the return air in the return air channel 300 can be evenly dispersed to the bottom of the evaporator 33 under the action of the guide fins 54 to make the return air It can fully contact the evaporator 33 for heat exchange, which improves the heat exchange efficiency.

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

Abstract

一种商用立式冷柜，包括柜体（1）和制冷回路，柜体（1）包括外壳（11）和内胆（12），内胆（12）的背部设置有风道（100），风道（100）中设置有离心风机（4），内胆（12）还设置有向外突出并与离心风机（4）相对布置的外突部（121），离心风机（4）与外突部（121）之间形成供离心风机（4）进风的进风区域（103），以增大商用立式冷柜的储物空间。

Description

商用立式冷柜 技术领域
本发明属于制冷技术领域，尤其涉及一种商用立式冷柜。
背景技术
目前，制冷设备(冰箱、冷柜等)是人们日常生活中经常使用的电器设备。其中，对于商用立式冷藏柜而言，其主要放置在商场和超市等场所，其内部主要放置饮品供消费者直接拿取。通常情况下，商用立式冷藏柜采用玻璃门设计，以便于外部消费者能够直接观察内部的储物情况。
而对于现有的商用立式冷藏柜而言，由于在使用时，消费者会频繁的开关门体，因此需要制冷速度快，能够短时间降温，需要配置高速大风量的风冷系统才能满足要求，为此，常规的商用立式冷藏柜通常将风道配置在柜体的顶部。例如：中国专利号201620542264.4公开的风冷商用冷柜，在柜体的顶部设置风机和蒸发器，风机通过向蒸发器吹风以实现大风量的输送冷风进行制冷。但是，由于风机和蒸发器布置在柜体的顶部，必将占用柜体顶部的储物空间，导致储物空间变小。
如何设计一种储物空间大的商用立式冷柜是本发明所要解决的技术问题。
发明内容
本发明提供了一种商用立式冷柜，实现增大商用立式冷柜的储物空间。
为达到上述技术目的，本发明采用以下技术方案实现：
一种商用立式冷柜，其特征在于，包括：
柜体，所述柜体包括外壳和内胆，所述内胆设置在所述外壳中，所述内胆和所述外壳之间形成保温层；
制冷回路，所述制冷回路包括连接在一起的压缩机、冷凝器、节流装置和蒸发器；
所述内胆的背部设置有风道，所述风道具有回风口和出风口，所述风道中设置有离心风机和所述蒸发器，所述内胆还设置有向外突出的外突部，所述离心风机与所述外突部相对布置，所述离心风机与所述外突部之间形成用于供所述离心风机进风的进风区域。
进一步的，所述内胆中设置有盖板，所述盖板与所述内胆的内壁之间形成所述风道，所述离心风机和所述蒸发器位于所述盖板与所述外突部之间。
进一步的，所述离心风机包括电机、离心风扇和蜗壳，所述蜗壳安装在所述盖板的内表面上，所述蜗壳的进风口面向所述外突部，所述离心风扇位于所述蜗壳中并与所述电机的转轴连接。
进一步的，所述蜗壳上还设置有挡板，所述挡板抵靠在所述外突部上。
进一步的，所述蒸发器位于所述离心风机的下方并位于所述外突部中。
进一步的，所述挡板绕所述蜗壳的进风口分布，所述挡板的两端部分别延伸至所述蒸发器的对应侧部；所述外突部、所述蒸发器、所述挡板和所述蜗壳之间形成进风腔体。
进一步的，所述挡板与所述外突部之间设置有第一密封垫，所述盖板的两侧部与所述内胆之间设置有第二密封垫。
进一步的，所述外突部上形成第一凹槽，所述第一密封垫位于所述第一凹槽中。
进一步的，所述挡板的下端部与所述内胆之间形成所述回风口，所述蜗壳的顶部与所述挡板的上端部之间形成所述出风口。
进一步的，所述盖板的内表面形成有第二凹槽，所述蜗壳的边缘插在所述第二凹槽中。
与现有技术相比，本发明的优点和积极效果是：通过在内胆的背部设置外突部，外突部将在内胆的内表面形成凹陷的槽结构，这样，便可以将离心风机和蒸发器布置在外突部中，由于蒸发器和离心风机配置的内胆的背部，可以使得物品可以存放到内胆的上部储物空间，同时，由于利用外突部来安装离心风机和蒸发器，使得离心风机和蒸发器对内胆底部的储物空间影响较小，从而在整体上增大了内胆的整体储物空间。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明商用立式冷柜一个实施例的结构示意图；
图2为图1中商用立式冷柜的剖视图；
图3为图2中A区域的局部放大示意图；
图4为本发明商用立式冷柜中内胆的组装图之一；
图5为本发明商用立式冷柜中内胆的组装图之二；
图6为本发明商用立式冷柜中内胆的结构示意图；
图7为本发明盖板与离心风机的组装图；
图8为本发明盖板与离心风扇的组装图；
图9为本发明离心风机的结构示意图之一；
图10为本发明离心风机的结构示意图之二；
图11为本发明盖板与送风板的组装图之一；
图12为本发明盖板与送风板的组装图之二。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明的是，在本发明的描述中，术语“上”、“下”、“左”、“右”、“竖”、“横”、“内”、“外”等指示的方向或位置关系的术语是基于附图所示的方向或位置关系，这仅仅是为了便于描述，而不是指示或暗示所述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发明的限制。此外，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。
如图1-图2所示，本发明提供的商用立式冷柜，采用风冷的方式进行制冷，包括柜体1、玻璃门2、制冷回路3和风机。其中，柜体1则包括外壳11和设置在外壳11中的内胆12，外壳11和内胆12之间通过发泡等方式形成保温层(未图示)，内胆12内部形成储物腔体10。而对于制冷回路3通常包括连接在一起的压缩机31、冷凝器32、节流装置(未图示)和蒸发器33。蒸发器33设置在柜体1中并通过风机实现风冷制冷。
其中，为了满足用户对大储物空间和大展示面积的要求，则对商用立式冷柜至少进行如下结构改进设计。如图1-10所示，风机采用离心风机4，以减小风机的整体尺寸，相对应的，内胆12的背部设置有风道100，风道100具有回风口101和出风口102，离心风机4和蒸发器33设置在风道100中，内胆12还设置有向外突出的外突部121，离心风机4与外突部121相对布置，离心风机4与外突部121之间形成用于供离心风机4进风的进风区域103。
具体的，通过在内胆12的背部区域形成风道100，则可以将离心风机4和蒸发器33安装在内胆12的背部。这样，就可以避免将离心风机4和蒸发器33安装在内胆12顶部而导致顶部空间无法储物和展示，从而可以有效地增大展示区域，使得在玻璃门2的正面形成大面积的展示区。同时，由于在内胆12的背部还形成外突部121，外突部121在内胆12的内壁形成凹陷的槽结构，形成额外空间，外突部121将进一步的增大内胆12的深度尺寸。
在不影响内胆12储物空间的情况下，通过外突部121形成的额外空间来安装离心风机4和蒸发器33，一方面可以充分地利用内胆12顶部的储物空间进行储物，另一方面使得离心风机4和蒸发器33不会占用内胆12底部过多的空间，从而有效地增大了内胆12的整体储物能力。
与此同时，由于内胆12形成的外突部121与离心风机4相对布置，这就使得离心风机4与 内胆12之间的距离更大，以获得更大空间的进风区域，可以更有效地提高离心风机4的进风能力，以确保风道100的出风速度满足制冷的要求。
其中，风道100形成的方式可以采用在内胆12中配置盖板5，具体的，盖板5安装在内胆12的背部并遮盖住外突部121，盖板5与内胆12的内壁之间形成风道100，离心风机4和蒸发器33位于盖板5与外突部121之间。通过盖板5对离心风机4和蒸发器33进行遮挡，盖板5与内胆12的内壁之间形成风道100。其中，盖板5的下端部与内胆12之间形成回风口101，盖板5的上端部与内胆12之间形成出风口102。利用冷气下沉的原理，从出风口102输出的冷气进入到储物腔体10中，冷气对储物腔体10中的物品制冷的同时，冷气逐渐下降并从回风口101进入到风道100中。
对于离心风机4而言，为了满足紧凑安装的同时还要确保进风的要求，则离心风机4包括电机41、离心风扇42和蜗壳43，蜗壳43安装在盖板5的内表面上，蜗壳43的进风口431面向外突部121，离心风扇42位于蜗壳43中并与电机41的转轴连接。具体的，蜗壳43上的进风口431面向外突部121设置，这样，使得进风口431在进风前侧形成较大的进风区域103，以满足离心风机4的进风要求。
其中，蜗壳43可以通过螺钉固定安装在盖板5的内表面上，蜗壳43可以采用罩壳的方式，蜗壳43与盖板5之间形成安装离心风扇42的安装腔体。这样，便可以更加有效地减小蜗壳43的厚度，并利用盖板5完成离心风机4的组装。而盖板5的内表面形成有第二凹槽51，蜗壳43的边缘插在第二凹槽51中以完成组装，这样，既方便精确地安装蜗壳43，又可以使得蜗壳43和盖板5之间形成密封性能更好的空气增压空间，以提高出风速度。
另外，电机41则通过支架411固定安装在盖板5上，在组装时，将离心风机4组装到盖板5上，再通过盖板5一同组装到内胆12中。而对于出风口102，则在蜗壳43的顶部与盖板5的上端部之间形成。
优选地，为了有效地定位进风口431前侧的进风区域103的空间大小，则在蜗壳43上还设置有挡板44，挡板44抵靠在外突部121上。具体的，在将盖板5连同离心风机4安装到内胆12的过程中，将盖板5组装到内胆12中后，挡板44将抵靠在外突部121上，以通过挡板44的尺寸来限制出进风区域103的空间大小。这样，便可以避免因组装误差，而导致进风口431距离外突部121的距离太小影响进风。其中，挡板44从蜗壳43向内胆12方向延伸的长度在10mm-50mm之间，以满足离心风机4的进风要求。
进一步的，为了更有效地获得大送风量，则优选为将蒸发器33设置在离心风机4的下方，蒸发器33也位于外突部121中并位于离心风机4的下方。这样，从回风口101吸入的空气先经 过蒸发器33换热后，再经由进风区域103进入到蜗壳43中并最终从出风口102输出。冷气经由离心风机4加速后直接从出风口102输出，这样，便可以保护出风速度较大，以获得良好的制冷效果。
更进一步的，为了获得良好的回风效果，则挡板44绕蜗壳43的进风口分布，挡板44的两端部分别延伸至蒸发器33的对应侧部；外突部121、蒸发器33、挡板44和蜗壳43之间形成进风腔体。具体的，挡板44除了用于限定进风口431的进风距离外，还可以与下方的蒸发器33配合以使得对底部的蒸发器33进行强有力的吸风，这样，便可以使得回风口101能够更好地将储物腔体10中的空气吸入到风道100中。
对于盖板5和内胆12之间形成的风道100而言，为了获得良好的气密性，以确保气流经由回风口101和出风口102进出，则在挡板44与外突部121之间设置有第一密封垫401，盖板5的两侧部与内胆12之间设置有第二密封垫501，具体的，第一密封垫401能够密封挡板44与外突部121之间形成的连接区域，防止空气从挡板44与外突部121之间连接部位泄露；同样的，第二密封垫501能够密封盖板5与内胆12之间的连接区域。优选地，为了获得使得进入到离心风机4的空气有效地经过蒸发器33换热，则在挡板44与蒸发器33之间的连接部位设置第三密封垫402，这样，便可以避免空气未经蒸发器33换热而从蒸发器33的一侧吸入到离心风机4中。而由于挡板44整体呈弧形板结构，为了方便定位安装第一密封垫401，则在外突部121上形成第一凹槽122，第一密封垫401位于第一凹槽122中。
而对于风道100输出的冷气，为了满足不同的送风要求以满足不同储物的制冷要求，则可以配置有送风板6，送风板6可拆卸地安装在内胆12上，送风板6遮盖住出风口102。具体的，采用可拆卸地送风板6来引导从出风口102输出的冷气，则可以根据储物腔体10中的储物不同，采用不同结构形式的送风板6来满足制冷的要求。其中，送风板6可拆卸安装在内胆12上的方式，可以采用卡扣或螺钉进行连接，以方便操作人员进行拆卸更换。
针对储物腔体10中存放较大体积的物品时，如图4所示，送风板6可以采用送风网板的结构形式，送风板6主要起到遮挡住出风口102的作用，以避免杂物落入到出风口102中。而从出风口102输出的冷气穿过送风板6的网孔向上传输至储物腔体10的顶部，然后，冷气触顶向下流动以对物品进行制冷。
同时，针对储物腔体10中通过搁架分层存储物品时，则需要针对各层搁架上的物品进行对应的风冷制冷，此时，如图5所示，送风板6沿高度方向上配置有多个送风口60，则冷风能够通过不同高度位置处的送风口60输出至储物腔体10中，以针对不同高度位置处的物品进行制冷。参见图12所示，其中，送风口60的上下边缘还设置有导风板601，导风板601能够引导从送风 口60输出的风横向输出，以在内胆12的横截面方向获得较大的送风距离，提高冷风的分布均匀性。
其中，送风板6包括送风基板61，送风基板61沿出风口102出风方向向上延伸。具体的，送风基板61上配置有送风口60，送风基板61直接安装在盖板5的上部，从出风口102输出的冷气则通过送风基板61与内胆12的内壁之间形成空间进行传输，冷气在传输过程中将从送风口60输出至储物腔体10中。优选地，对于高度尺寸更高的内胆12而言，为了满足更高位置的送风要求，则送风板6还包括送风拼板62，送风拼板62可拆卸地安装在送风基板61的上方。具体的，送风拼板62则根据实际使用需要安装在送风基板61的上部，以进一步地对顶部的送风进行分配。同样的，送风拼板62也对应的配置有送风口60。其中，送风基板61可以采用插接连接的方式安装在盖板5的上部；同样的，送风拼板62也可以采用插接方式安装在送风基板61的上部。而送风基板61和送风拼板62则可以采用卡扣或螺钉固定的方式可拆卸地安装固定在内胆12中。
优选地，针对工厂生产的不同规格尺寸的柜体1，为了实现模块化通用性的设计，如图11-图12所示，送风拼板62可以进一步的包括至少两块拼接子板621，相邻两块拼接子板621拼接在一起，最下方的拼接子板621可拆卸地安装在送风基板61的上方。具体的，在实际生产过程中，内胆12中至少包括盖板5以形成风道，然后，根据柜体1的整体尺寸来对应的配置送风板6的结构形式。对于高度尺寸较大的柜体1而言，则根据需要配置有对应数量的拼接子板621，以满足高度方向上均匀送风的需求。其中，两块拼接子板621采用插接的方式拼接在一起，每个拼接子板621可以采用卡扣或螺钉连接的方式安装在内胆12中。
同时，由于内胆12的宽度方向较大，如何均匀有效地将冷气分配到内胆12形成的储物腔体10中，对于储物腔体10中的物品能否获得良好制冷至关重要。为此，如图11-图12所示，送风板6内表面的两侧分别设置有沿出风口102的出风方向延伸的导流板63，两个导流板63的下端部连接在一起并形成V型结构630，V型结构630朝向出风口102，送风板6的两侧分别设置有若干送风口，送风口60位于对应侧的导流板63的外侧。具体的，从出风口102输出的冷气经由V型结构630导向后，沿着导流板63向上流动，并从导流板63外侧的对应送风口60输出至储物腔体10中。由于V型结构630朝向出风口102，可以通过V型结构630来有效地对出风口102输出的气流进行分流处理，以使得两侧导流板63外侧分配均匀地气流量，达到均匀地送风的要求。
进一步的，送风板6的侧边缘还设置有筋板64，筋板64贴靠在内胆12的内壁上，位于同一侧的筋板64与导流板63之间形成送风通道200。具体的，参见图3所示，通过在送风板6的 边缘设置筋板64，使得相对应的筋板64和导流板63之间形成送风通道200，这样，从出风口102输出的冷气经过V型结构630分流后将对应的在送风通道200中流动。其中，筋板64和导流板63与内胆12的内壁之间分别设置有密封垫，通过密封垫可以提高送风通道200的气密性，以避免冷气在送风通道200传输过程中从送风板6与内胆12之间的间隙泄露。
其中，对于送风板6采用分段设计的情况下，则相对应的，送风基板61的内表面两侧形成第一导风筋条631，两个第一导风筋条631的下端部连接在一起并形成V型结构630。同样的，送风拼板62的内表面两侧形成第二导风筋条632，位于同一侧的第二导风筋条632与第一导风筋条631连接在一起形成导流板63。
另外，送风基板61的侧边缘还设置有第三导风筋条641，位于同一侧的第三导风筋条641与第一导风筋条631之间形成第一送风子通道；送风拼板62的侧边缘还设置有第四导风筋条642，位于同一侧的第四导风筋条642与第二导风筋条632之间形成第二送风子通道；第一送风子通道与第二送风子通道连通以形成送风通道200，同时，位于同一侧的第三导风筋条641与第四导风筋条642连接在一起形成筋板64。
优选地，为了冷气在送风通道200传输过程中，在高度方向上的各个送风口60能够均匀地分配冷气，以使得储物腔体10在高度方向上均匀地分配冷量，每个送风口60在送风通道200中设置有对应的挡风板602，挡风板602能够在冷气传输过程中，引导部分冷气经由对应位置处的送风口60输出。挡风板602设置在导流板63和筋板64之间，而针对冷气导流的需求，挡风板602的结构形式有多种。例如：挡风板602为直板，挡风板602与送风口60相对布置，冷气在送风通道200传输过程中，冷气经由挡风板602处时，在挡风板602的挡风作用下，使得部分冷气进入到挡风板602相对位置处的送风口60输出，其中，为了提高挡风效果，则挡风板602倾斜布置在送风通道200中，挡风板602的上部靠近送风口60，而挡风板602的下部远离送风口60。或者，挡风板602为弧形板，挡风板602固定在对应的送风口60的上方，挡风板602的自由端部朝下延伸。这样，冷气在送风通道200中输送过程中，冷气经过挡风板602阻挡后将引导进入到送风口60中，挡风板602能够在冷气输送过程中，引导冷气经由送风口60输出至储物腔体10中，从而实现在高度方向上均匀分配冷气的输出量。
更进一步的，为了在盖板5所在区域，也能够获得良好的冷气供应量，达到均匀制冷的效果，则蜗壳43设置在盖板5上部的内表面上，蒸发器33则位于盖板5下部的内表面上。同时，盖板5上还设置有辅助风出口52；蜗壳43与盖板5之间形成出风腔体，辅助风出口52连通出风腔体。具体的，经过蒸发器33换热后的冷气进入到离心风机4中，大部分冷气将经过出风口102输出至送风通道200中，以实现对盖板5顶部的区域进行分配冷气；进入到离心风机4中的剩余部分 冷气在直接经过辅助风出口52输出至储物腔体10中，以满足对位于盖板5周围的物品进行吹冷气，这样，便可以使得储物腔体10的底部也可以直接获得冷气制冷，提高储物腔体内的温度分布均匀性。其中，为了方便将冷气输送至辅助风出口52处，则蜗壳43的底部还设置有向下延伸的连接风道431，辅助风出口52通过连接风道431与出风腔体连通。
又进一步的，为了达到良好的回风效果，则在盖板5的底部形成翻边结构53，翻边结构53朝向玻璃门2方向延伸，内胆12的底部还设置有搁物架7，搁物架7的后端部搭接在翻边结构53上。具体的，在实际使用过程中，搁物架7上将放置冷藏的物品，这样，便可以利用搁物架7上的冷藏物品与内胆12的底部之间形成回风通道300。在冷气循环流动过程中，储物腔体中的部分冷气经由搁物架7上冷藏物品之间的间隙进入到回风通道300中，还有部分冷气从搁物架7的前侧直接吸入到回风通道300。这样，便可以使得冷气能够在内胆12的横截面方向均匀地分布和流动，以达到更加均匀地制冷效果。同时，利用搁物架7上的物品与内胆12底部形成延伸至玻璃门2出的回风通道300，能够满足靠近玻璃门2周围的空气有效地被吸入到风道100中进行换热，以获得良好的回风效果。
另外，翻边结构53的下表面还设置有导流翅片54，回风通道300中的回风在导流翅片54的作用下，能够均匀分散至蒸发器33的底部，以使得回风能够充分与蒸发器33接触进行换热，提高了换热效率。
以上实施例仅用以说明本发明的技术方案，而非对其进行限制；尽管参照前述实施例对本发明进行了详细的说明，对于本领域的普通技术人员来说，依然可以对前述实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或替换，并不使相应技术方案的本质脱离本发明所要求保护的技术方案的精神和范围。

Claims (10)

  1. 一种商用立式冷柜，其特征在于，包括：
    柜体，所述柜体包括外壳和内胆，所述内胆设置在所述外壳中，所述内胆和所述外壳之间形成保温层；
    制冷回路，所述制冷回路包括连接在一起的压缩机、冷凝器、节流装置和蒸发器；
    所述内胆的背部设置有风道，所述风道具有回风口和出风口，所述风道中设置有离心风机和所述蒸发器，所述内胆还设置有向外突出的外突部，所述离心风机与所述外突部相对布置，所述离心风机与所述外突部之间形成用于供所述离心风机进风的进风区域。
  2. 根据权利要求1所述的商用立式冷柜，其特征在于，所述内胆中设置有盖板，所述盖板与所述内胆的内壁之间形成所述风道，所述离心风机和所述蒸发器位于所述盖板与所述外突部之间。
  3. 根据权利要求2所述的商用立式冷柜，其特征在于，所述离心风机包括电机、离心风扇和蜗壳，所述蜗壳安装在所述盖板的内表面上，所述蜗壳的进风口面向所述外突部，所述离心风扇位于所述蜗壳中并与所述电机的转轴连接。
  4. 根据权利要求3所述的商用立式冷柜，其特征在于，所述蜗壳上还设置有挡板，所述挡板抵靠在所述外突部上。
  5. 根据权利要求4所述的商用立式冷柜，其特征在于，所述蒸发器位于所述离心风机的下方并位于所述外突部中。
  6. 根据权利要求5所述的商用立式冷柜，其特征在于，所述挡板绕所述蜗壳的进风口分布，所述挡板的两端部分别延伸至所述蒸发器的对应侧部；所述外突部、所述蒸发器、所述挡板和所述蜗壳之间形成进风腔体。
  7. 根据权利要求4所述的商用立式冷柜，其特征在于，所述挡板与所述外突部之间设置有第一密封垫，所述盖板的两侧部与所述内胆之间设置有第二密封垫。
  8. 根据权利要求7所述的商用立式冷柜，其特征在于，所述外突部上形成第一凹槽，所述第一密封垫位于所述第一凹槽中。
  9. 根据权利要求4所述的商用立式冷柜，其特征在于，所述挡板的下端部与所述内胆之间形成所述回风口，所述蜗壳的顶部与所述挡板的上端部之间形成所述出风口。
  10. 根据权利要求3所述的商用立式冷柜，其特征在于，所述盖板的内表面形成有第二凹槽，所述蜗壳的边缘插在所述第二凹槽中。
PCT/CN2020/106722 2019-09-06 2020-08-04 商用立式冷柜 WO2021042930A1 (zh)

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JPH08100790A (ja) * 1994-09-30 1996-04-16 Hitachi Ltd 冷凍冷蔵庫用冷気循環ファン装置
KR100584268B1 (ko) * 2004-04-29 2006-05-26 엘지전자 주식회사 냉장고의 냉기 순환 구조
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