EP3411652B1 - Refrigeration display cabinet system - Google Patents
Refrigeration display cabinet system Download PDFInfo
- Publication number
- EP3411652B1 EP3411652B1 EP17703015.2A EP17703015A EP3411652B1 EP 3411652 B1 EP3411652 B1 EP 3411652B1 EP 17703015 A EP17703015 A EP 17703015A EP 3411652 B1 EP3411652 B1 EP 3411652B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- evaporator
- heat exchanger
- refrigeration
- display
- bottom part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000005057 refrigeration Methods 0.000 title claims description 79
- 230000008020 evaporation Effects 0.000 claims description 27
- 238000001704 evaporation Methods 0.000 claims description 27
- 239000003507 refrigerant Substances 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 210000002310 elbow joint Anatomy 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 9
- 238000007710 freezing Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F3/00—Show cases or show cabinets
- A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
- A47F3/0439—Cases or cabinets of the open type
-
- 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
-
- 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
- F25B39/028—Evaporators having distributing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
- F28F9/0275—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple branch pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/023—Air curtain closures
Definitions
- the present invention relates to the field of refrigeration equipment, and in particular, to a refrigeration display cabinet system.
- Refrigeration display cabinets are common in large markets, supermarkets, or fresh food markets, and they arc mainly used for providing a low-temperature environment for commodities stored therein, thus improving the freshness and the storage life of the commodities. Besides, the refrigeration display cabinets also have features such as being convenient for consumers to view and select commodities. In consideration of many aspects such as an application environment and a layout space, the refrigeration display cabinets may be designed in various forms such as a horizontal type and an upright type for selection.
- FIG. 1 shows a common upright refrigeration display cabinet 100, which includes a cabinet body 110 and a display region 120 enclosed by the cabinet body 110.
- Several shelves may be disposed in the display region 120 and commodities are put on the shelves for placement and storage.
- the front face of the display region 120 is not closed by the cabinet body 110, and an inlet/outlet for consumers to view and select commodities is reserved here.
- a consumer may view commodities in the display region 120 via the inlet/outlet, and decides whether to buy according to the need.
- the refrigeration function of the refrigeration display cabinet 100 is provided by an attached refrigeration system 200.
- the refrigeration system 200 may include a built-in evaporator 210 at a rear part of the cabinet body 110 and a built-in evaporator fan 211at a bottom part of the cabinet body 110.
- the interior of the whole cabinet body 110 is of an air communication structure.
- the air enters the cabinet body via the bottom part of the cabinet body 110, and flows through the evaporator 210 and thus be fully cooled.
- the cooled air exchanges heat with the display region 120 via a wall surface of the cabinet body 110 on one hand, and on the other hand, directly enters the display region 120 via a vent hole opened on the wall surface of the cabinet body 110, to exchange heat with the commodities therein, thus achieving an effect of storing the commodities at a low temperature.
- An objective of the present invention is to provide a refrigeration display cabinet system that can enhance refrigeration for an area with a relatively high temperature in a display region.
- Another objective of the present invention is to provide another refrigeration display cabinet system that can enhance refrigeration for an area with a relatively high temperature in a display region.
- the present invention provides the following technical solutions.
- a refrigeration display cabinet system is provided as defined by claim 1.
- FIG. 2 it shows a refrigeration display cabinet system according to an embodiment of the present invention.
- the refrigeration display cabinet system mainly includes a refrigeration display cabinet part for displaying and selling goods and a refrigeration system part for providing a refrigeration/freezing effect.
- the refrigeration display cabinet 300 includes a cabinet body 310 and a display region 320 enclosed by the cabinet body 310.
- the bottom, the rear, and the top of the display region 320 are closed by a corresponding bottom part 311, rear part 312, and top part 313 of the cabinet body 310 respectively, and the front side of the upright display cabinet is provided with a display port which is in communication with the external through an air curtain, for consumers to view and select commodities placed in the display region 320.
- a refrigeration system 400 needed by the refrigeration display cabinet system includes a compressor, a condenser, a throttling element, and an evaporator 410 that sequentially communicate with each other through a pipeline.
- all components of the refrigeration system 400 may be arranged in the cabinet body 310, thereby providing an integrated refrigeration system.
- only the evaporator 410 of the refrigeration system 400 and an evaporator fan corresponding thereto are arranged in the cabinet body 310, to make sure that a refrigerating capacity needed by the refrigeration display cabinet 300 is provided.
- the refrigeration system 400 of the present invention further includes a bypass heat exchanger 420, of which an inlet end and an outlet end are both connected to the evaporator 410, and thus can guide part of the refrigerant from the evaporator 410 to exchange heat with a specified position via the bypass heat exchanger 420, and guide the refrigerant back to the evaporator 410 after the heat exchange process is completed.
- bypass heat exchanger 420 is disposed to be in contact with the cabinet body 310, and exchanges heat with the display region 320 at this position.
- the bypass heat exchanger 420 may be disposed on a wall surface, of the cabinet body310, which corresponds to an area with a relatively high temperature in the display region320, to specifically cool this area, thus improving the work efficiency of the refrigeration display cabinet.
- bypass heat exchanger in principle, it should be arranged on the wall surface, in the area with a relatively high temperature, of the cabinet body as far as possible.
- multiple aspects such as an actual available space, arrangement costs, simplicity and reliability of the display cabinet should also be considered comprehensively in an actual process.
- several arrangement manners of the bypass heat exchanger are provided for reference.
- the bypass heat exchanger 420 is arranged in the bottom part 311 of the cabinet body 210, and contacts a top plate 311a of the bottom part from below, thus implementing heat exchange with the display region 320 at this position.
- the connection between the top plate 311a and the bypass heat exchanger 420 may be implemented in multiple connection manners.
- a clamping member may be disposed on the top plate 311a of the bottom part 311, and the bypass heat exchanger 420 is clamped to the top plate 311a of the bottom part 311 via the clamping member.
- an adhesive member may be additionally included, and the bypass heat exchanger 420 is adhered, from bottom up, to the top plate 311a of the bottom part 311 via the adhesive member.
- the adhesive member may be a liner with an adhesive provided on its periphery, the main body part of the bypass heat exchanger 420 is covered by the liner, and the bypass heat exchanger is adhered to the top plate 311a via the adhesive on the periphery of the liner.
- bypass heat exchanger 420 a fixed connection between the bypass heat exchanger 420 and the top plate 311a is implemented on one hand, and on the other hand, downward heat transfer of the bypass heat exchanger 420 is substantially insulated, thus avoiding unnecessary frosting and moisture condensation, so that the refrigerating capacity is transferred upward via the top plate 311a as much as possible.
- bypass heat exchanger There may also be multiple possibilities for the specific implementation manner between the bypass heat exchanger and the evaporator mentioned in the above embodiment of the present invention, as long as it can implement that the refrigerant in the evaporator is guided into the bypass heat exchanger at a suitable flow rate for heat exchange.
- the bypass heat exchanger several arrangement manners of the bypass heat exchanger are provided for reference.
- the evaporator may include several evaporation branches to reduce a flow pressure drop at the refrigerant side and improve the heat exchange effect, wherein a first evaporation branch is included.
- the inlet end and the outlet end of the bypass heat exchanger are both connected to the first evaporation branch.
- the first evaporation branch is selected on the basis of the following principle. That is, when the refrigeration display cabinet system works, the first evaporation branch accumulates the largest volume of liquid refrigerant among all the evaporation branches of the evaporator. In other words, the first evaporation branch has a poorer heat exchange environment, and thus a large volume of liquid refrigerant therein does not absorb enough heat and fully evaporate.
- the refrigerating capacity acquired by the external environment from this evaporation branch is very limited, and in a severe case, phenomena such as frosting and freezing may even occur in a heat exchange pipeline of the evaporator at this position.
- the connection of the bypass heat exchanger may achieve an effect of specifically heating the refrigeration display cabinet on one hand, and on the other hand, can further effectively avoid the frosting and freezing phenomena in the heat exchange pipeline at this position.
- the first evaporation branch 414 is located at the lower portion of the evaporator 410.
- the inlet end 420a and the outlet end 420b of the bypass heat exchanger 420 are both connected to the first evaporation branch 414, thus guiding part of the relatively large volume of liquid refrigerant accumulated in the first evaporation branch 414 to enter the main body part 420c of the bypass heat exchanger 420, and after heat exchange with the display region 320 is implemented in the main body part 420c via the top plate 311a, this part of liquid refrigerant is guided back to the first evaporation branch 414, thus returning to the regular refrigeration cycle.
- the inlet end 420a and the outlet end 420b of the bypass heat exchanger 420 may also be connected into the evaporator 410 from an elbow joint of any heat exchange pipeline 412 of the evaporator 410.
- a conventional finned heat exchanger is generally assembled by inserting one end to a long U-shaped pipe and welding an elbow on the other end. Therefore, the connection of the bypass heat exchanger 420 into the evaporator 410 via the elbow joint can effectively use the existing connection end at this position, which does not need to make too many improvements on existing components, is easy to implement, and is low in costs.
- the inlet end 420a and the outlet end 420b of the bypass heat exchanger 420 may also be connected into the evaporator 410 from a joint between any heat exchange pipeline 412 of the evaporator 410 and a fin, and this can also achieve the technical effect of guiding part of the refrigerant into the bypass heat exchanger 420.
- the inlet end 420a and the outlet end 420b of the bypass heat exchanger 420 may also be connected into the evaporator 410 from a branch pipe of any dispenser 411 of the evaporator 410. Because the dispenser 411 is located outside the evaporator 410, machining is easier by selecting this position as a connection port. It should be understood that a steam return pipe 413 is not suitable to be used as a connection point of the bypass heat exchanger 420, because the refrigerant at this position generally has relatively low dryness and relatively poor heat transfer performance.
- the inlet end 420a and the outlet end 420b of the bypass heat exchanger 420 may be directly welded to the evaporator 410.
- This connection manner is operated quickly, is easy to machine, and has excellent connection tightness.
- the inlet end 420a and the outlet end 420b of the bypass heat exchanger 420 may also be connected to the evaporator 410 through a pipe joint.
- the bypass heat exchanger 420 may be produced and processed as a standard component, and the connection between the bypass heat exchanger 420 and the evaporator 410 can be implemented by using different pipe joints according to different actual application conditions.
- FIG. 3 shows an implementation of a pipe joint 430 including a hose.
- the bypass heat exchanger 420 itself may also have multiple structure forms.
- the embodiment in FIG. 3 provides a simple, feasible and efficient form. That is, the bypass heat exchanger 420 is designed as a single heat exchange tube in reciprocating arrangement, which not only facilitates the connection between the bypass heat exchanger 420 and the cabinet body 310 but also provides a heat exchange passage as long as possible, to enhance the heat transfer effect.
- the embodiment of the present invention further includes several improvements on conventional components of the refrigeration display cabinet system.
- the air may be allowed to circulate among the bottom part 311, the rear part 312, and the top part 313 of the cabinet body 310; besides, the air curtain is formed between the bottom part 311 and the top part 313, and causes cold air to flow from the top down. From this, the air flow system coordinates with the refrigeration system in the refrigeration display cabinet system. After being cooled by the refrigeration system at the bottom part 311 of the cabinet body 310, the cold air flows through the rear part 312 and the top part 313 sequentially, and flows downward from the top part 313 back to the bottom part, thus forming an air curtain at the display port of the display region 320.
- the evaporator 410 may be disposed in the bottom part 311 or the rear part 312 of the cabinet body 310; both can achieve a desirable heat exchange effect with the air, without affecting the appearance of the display cabinet.
- the refrigeration display cabinet system further includes an evaporator fan, which may be disposed in the bottom part 312 of the cabinet body 310, thereby driving the air to enter the cabinet body 310, and completing the whole circulation from the bottom up.
- an evaporator fan which may be disposed in the bottom part 312 of the cabinet body 310, thereby driving the air to enter the cabinet body 310, and completing the whole circulation from the bottom up.
- a vent hole may further be provided in the rear part 312 of the cabinet body 310, and the vent hole may be disposed corresponding to a goods display area in the display region 320, thereby ensuring a better refrigerating effect for commodities placed therein.
- a specific implementation manner of the goods display area may be several shelves321 in the display region 320.
- the air is suctioned into the bottom part 311 of the cabinet body 310 under the driving of the evaporator fan, and implements heat exchange with the evaporator 410 therein; the cooled air continues to flow to the rear part 312 of the cabinet body 310;one part of the air enters the display region 320 via the vent hole at this position and cools commodities on the shelves 321; the other part of the air continues to flow upward to the top part 313 of the cabinet body 310, and flows downward from the front side of the top part 313 back to the bottom part 311, thereby forming an air curtain at the display port of the display region 320, to form effective insulation between the external environment and the inner side of the display region 320.
- the high-temperature gaseous refrigerant flows into the condenser for cooling, and the cooled refrigerant enters the evaporator 410 after being throttled by the throttling element.
- the remaining low-temperature liquid refrigerant for example, the refrigerant at the bottom of the evaporator
- the remaining low-temperature liquid refrigerant that fails to fully exchange heat with the air that flows by
- the top plate 311a of the bottom part 311 of the cabinet body 310 under the guidance of the bypass heat exchanger 420, directly contact the top plate 311a, provide the refrigerating capacity for the commodities in the display region 320 to implement sufficient cooling of the commodities, and then flow back to the evaporator 410. All of the refrigerant will return to the compressor from the evaporator 410, to start a new round of refrigeration cycle.
- the present invention further provides an implementation of another refrigeration display cabinet system.
- Part of the structure of the refrigeration display cabinet system has a structural arrangement similar to that in the above embodiment. That is, the refrigeration display cabinet 300 also includes a cabinet body 310 and a display region 320 enclosed by the cabinet body 310.
- the refrigeration system 400 also includes a compressor, a condenser, a throttling element, and an evaporator 410 that sequentially communicate with each other through a pipeline.
- the two major systems have similar structures and arrangement requirements.
- the distinguishing improvement thereof lies in that, a main body part 420c of a bypass heat exchanger 420 included in the refrigeration system 400 of the present invention is integrated in the cabinet body 310, to implement better heat exchange with the display region.
- bypass heat exchanger 420 may be disposed in a wall surface, of the cabinet body 310, which corresponds to an area with a relatively high temperature in the display region 320, to specifically cool this area, thus improving the work efficiency of the refrigeration display cabinet.
- bypass heat exchanger in principle, it should be arranged in the wall surface, corresponding to the area with a relatively high temperature, of the cabinet body as far as possible.
- multiple aspects such as an actual available space, arrangement costs, simplicity and reliability of the display cabinet should also be considered comprehensively in an actual process.
- several arrangement manners of the bypass heat exchanger are provided for reference.
- the bypass heat exchanger 420 is arranged in the bottom part 311, is in contact with a top plate 311a of the bottom part, and exchanges heat with the display region.
- the main body part 420c of the bypass heat exchanger 420 may be integrated in a top plate 311a of a bottom part 311, and exchanges heat with the display region 320.
- connection manners may be used to implement the connection between the main body part 420c of the bypass heat exchanger 420 and the cabinet body 310.
- the main body part 420c of the bypass heat exchanger 420 may be integrated, in a foamed form, in the cabinet body 310, and only the inlet end 420a and the outlet end 420b thereof are exposed on the external side, to implement a connection with the evaporator 410.
- the evaporator may include several evaporation branches, wherein a first evaporation branch is included.
- the inlet end and the outlet end of the bypass heat exchanger are both connected to the first evaporation branch.
- the first evaporation branch is selected on the basis of the following principle. That is, when the refrigeration display cabinet system works, the first evaporation branch accumulates the largest volume of liquid refrigerant among all the evaporation branches of the evaporator.
- connection of the bypass heat exchanger may achieve an effect of specifically heating the refrigeration display cabinet on one hand, and on the other hand, can further effectively avoid the frosting and freezing phenomena in the heat exchange pipeline at this position.
- the first evaporation branch 414 is located at the lower portion of the evaporator 410.
- the inlet end 420a and the outlet end 420b of the bypass heat exchanger 420 are both connected to the first evaporation branch 414, thus guiding part of the relatively large volume of liquid refrigerant accumulated in the first evaporation branch 414 to enter the main body part 420c of the bypass heat exchanger 420, and after heat exchange with the display region 320 is implemented in the main body part 420c via the top plate 311a, this part of liquid refrigerant is guided back to the first evaporation branch 414, thus returning to the regular refrigeration cycle.
- the inlet end 420a and the outlet end 420b of the bypass heat exchanger 420 may also be connected into the evaporator 410 from an elbow joint of any heat exchange pipeline 412 of the evaporator 410; and/or connected into the evaporator 410 from a joint between any heat exchange pipeline 412 of the evaporator 410 and a fin; and/or connected into the evaporator 410 from a branch pipe of any dispenser 411 of the evaporator 410.
- the inlet end 420a and the outlet end 420b thereof may also be directly welded to the evaporator 410.
- This connection manner is operated quickly, is easy to machine, and has excellent connection tightness.
- the inlet end 420a and the outlet end 420b of the bypass heat exchanger 420 may also be connected to the evaporator 410 through a pipe joint.
- the bypass heat exchanger 420 may be produced and processed as a standard component, and the connection between the bypass heat exchanger 420 and the evaporator 410 can be implemented by using different pipe joints according to different actual application conditions.
- the bypass heat exchanger 420 itself may be designed as a single heat exchange tube in reciprocating arrangement similarly, which not only facilitates the connection between the bypass heat exchanger 420 and the cabinet body 310 but also provides a heat exchange passage as long as possible, to enhance the heat transfer effect.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Freezers Or Refrigerated Showcases (AREA)
Description
- The present invention relates to the field of refrigeration equipment, and in particular, to a refrigeration display cabinet system.
- Refrigeration display cabinets are common in large markets, supermarkets, or fresh food markets, and they arc mainly used for providing a low-temperature environment for commodities stored therein, thus improving the freshness and the storage life of the commodities. Besides, the refrigeration display cabinets also have features such as being convenient for consumers to view and select commodities. In consideration of many aspects such as an application environment and a layout space, the refrigeration display cabinets may be designed in various forms such as a horizontal type and an upright type for selection.
- For example,
FIG. 1 shows a common uprightrefrigeration display cabinet 100, which includes acabinet body 110 and adisplay region 120 enclosed by thecabinet body 110. Several shelves may be disposed in thedisplay region 120 and commodities are put on the shelves for placement and storage. The front face of thedisplay region 120 is not closed by thecabinet body 110, and an inlet/outlet for consumers to view and select commodities is reserved here. In a use process, a consumer may view commodities in thedisplay region 120 via the inlet/outlet, and decides whether to buy according to the need. The refrigeration function of therefrigeration display cabinet 100 is provided by an attachedrefrigeration system 200. Therefrigeration system 200 may include a built-inevaporator 210 at a rear part of thecabinet body 110 and a built-in evaporator fan 211at a bottom part of thecabinet body 110. The interior of thewhole cabinet body 110 is of an air communication structure. In a working process of therefrigeration system 200, driven by theevaporator fan 211, the air enters the cabinet body via the bottom part of thecabinet body 110, and flows through theevaporator 210 and thus be fully cooled. The cooled air exchanges heat with thedisplay region 120 via a wall surface of thecabinet body 110 on one hand, and on the other hand, directly enters thedisplay region 120 via a vent hole opened on the wall surface of thecabinet body 110, to exchange heat with the commodities therein, thus achieving an effect of storing the commodities at a low temperature. - However, in a refrigeration display cabinet represented by this, due to the limitations on structural design and air flow, it is hard to ensure relatively uniform 92350WO01 (U300791PCT) refrigeration for commodities in the display region. For example, in the
refrigeration display cabinet 100 as shown inFIG. 1 , there is a high-temperature area 121 at the front side of the lower portion of the display region, and commodities stored here are very likely to be damaged or go bad due to a relatively high temperature.US 2764875 A relates to household refrigerators of the two temperature type.JPH03294776 A - An objective of the present invention is to provide a refrigeration display cabinet system that can enhance refrigeration for an area with a relatively high temperature in a display region.
- Another objective of the present invention is to provide another refrigeration display cabinet system that can enhance refrigeration for an area with a relatively high temperature in a display region.
- In order to achieve the foregoing objectives or other objectives, the present invention provides the following technical solutions.
- According to the present invention, a refrigeration display cabinet system is provided as defined by claim 1.
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FIG. 1 is a schematic diagram of a refrigeration display cabinet in the prior art;FIG. 2 is a schematic diagram of an embodiment of a refrigeration display cabinet according to the present invention; and -
FIG. 3 is a schematic diagram of an embodiment of a bottom part of a cabinet body of the refrigeration display cabinet according to the present invention. - Referring to
FIG. 2 , it shows a refrigeration display cabinet system according to an embodiment of the present invention. The refrigeration display cabinet system mainly includes a refrigeration display cabinet part for displaying and selling goods and a refrigeration system part for providing a refrigeration/freezing effect. - The
refrigeration display cabinet 300 includes acabinet body 310 and adisplay region 320 enclosed by thecabinet body 310. For an upright display cabinet, the bottom, the rear, and the top of thedisplay region 320 are closed by acorresponding bottom part 311,rear part 312, andtop part 313 of thecabinet body 310 respectively, and the front side of the upright display cabinet is provided with a display port which is in communication with the external through an air curtain, for consumers to view and select commodities placed in thedisplay region 320. - According to the present invention, a
refrigeration system 400 needed by the refrigeration display cabinet system includes a compressor, a condenser, a throttling element, and anevaporator 410 that sequentially communicate with each other through a pipeline. According to the size of an arrangement space and the structural condition of the refrigeration display cabinet, all components of therefrigeration system 400 may be arranged in thecabinet body 310, thereby providing an integrated refrigeration system. Alternatively, only theevaporator 410 of therefrigeration system 400 and an evaporator fan corresponding thereto are arranged in thecabinet body 310, to make sure that a refrigerating capacity needed by therefrigeration display cabinet 300 is provided. Besides, therefrigeration system 400 of the present invention further includes abypass heat exchanger 420, of which an inlet end and an outlet end are both connected to theevaporator 410, and thus can guide part of the refrigerant from theevaporator 410 to exchange heat with a specified position via thebypass heat exchanger 420, and guide the refrigerant back to theevaporator 410 after the heat exchange process is completed. According to the present invention,bypass heat exchanger 420 is disposed to be in contact with thecabinet body 310, and exchanges heat with thedisplay region 320 at this position. In this case, as the refrigerant of thebypass heat exchanger 420 directly exchanges heat with thedisplay region 320 via a wall surface of thecabinet body 310, this heat exchange effect will be much better than that of indirectly transferring, through air, the refrigerating capacity carried by the refrigerant in theevaporator 410 to thedisplay region 320, because the loss in the heat exchange process is minimized. Moreover, according to an actual application condition, the bypass heat exchanger 420may be disposed on a wall surface, of the cabinet body310, which corresponds to an area with a relatively high temperature in the display region320, to specifically cool this area, thus improving the work efficiency of the refrigeration display cabinet. - For the arrangement of the bypass heat exchanger in the above embodiment of the present invention, in principle, it should be arranged on the wall surface, in the area with a relatively high temperature, of the cabinet body as far as possible. However, multiple aspects such as an actual available space, arrangement costs, simplicity and reliability of the display cabinet should also be considered comprehensively in an actual process. Herein, several arrangement manners of the bypass heat exchanger are provided for reference.
- According to the present invention, referring to
FIG. 2 andFIG. 3 , thebypass heat exchanger 420 is arranged in thebottom part 311 of thecabinet body 210, and contacts a top plate 311a of the bottom part from below, thus implementing heat exchange with thedisplay region 320 at this position. Through experimental study, it is found that mostrefrigeration display cabinets 300 have a relatively poor refrigeration effect at the lower portion of thedisplay region 320. Therefore, it is very necessary to enhance heat exchange with thedisplay region 320 at this position by means of thebypass heat exchanger 420. In such an arrangement manner, specifically, the connection between the top plate 311a and thebypass heat exchanger 420 may be implemented in multiple connection manners. For example, a clamping member may be disposed on the top plate 311a of thebottom part 311, and thebypass heat exchanger 420 is clamped to the top plate 311a of thebottom part 311 via the clamping member. For another example, an adhesive member may be additionally included, and thebypass heat exchanger 420 is adhered, from bottom up, to the top plate 311a of thebottom part 311 via the adhesive member. For example, the adhesive member may be a liner with an adhesive provided on its periphery, the main body part of thebypass heat exchanger 420 is covered by the liner, and the bypass heat exchanger is adhered to the top plate 311a via the adhesive on the periphery of the liner. In this way, a fixed connection between thebypass heat exchanger 420 and the top plate 311a is implemented on one hand, and on the other hand, downward heat transfer of thebypass heat exchanger 420 is substantially insulated, thus avoiding unnecessary frosting and moisture condensation, so that the refrigerating capacity is transferred upward via the top plate 311a as much as possible. - There may also be multiple possibilities for the specific implementation manner between the bypass heat exchanger and the evaporator mentioned in the above embodiment of the present invention, as long as it can implement that the refrigerant in the evaporator is guided into the bypass heat exchanger at a suitable flow rate for heat exchange. Herein, several arrangement manners of the bypass heat exchanger are provided for reference.
- Optionally, the evaporator may include several evaporation branches to reduce a flow pressure drop at the refrigerant side and improve the heat exchange effect, wherein a first evaporation branch is included. The inlet end and the outlet end of the bypass heat exchanger are both connected to the first evaporation branch. The first evaporation branch is selected on the basis of the following principle. That is, when the refrigeration display cabinet system works, the first evaporation branch accumulates the largest volume of liquid refrigerant among all the evaporation branches of the evaporator. In other words, the first evaporation branch has a poorer heat exchange environment, and thus a large volume of liquid refrigerant therein does not absorb enough heat and fully evaporate. Therefore, the refrigerating capacity acquired by the external environment from this evaporation branch is very limited, and in a severe case, phenomena such as frosting and freezing may even occur in a heat exchange pipeline of the evaporator at this position. In this case, the connection of the bypass heat exchanger may achieve an effect of specifically heating the refrigeration display cabinet on one hand, and on the other hand, can further effectively avoid the frosting and freezing phenomena in the heat exchange pipeline at this position. For example, as shown in
FIG. 3 , in this embodiment, thefirst evaporation branch 414 is located at the lower portion of theevaporator 410. In this case, the inlet end 420a and theoutlet end 420b of thebypass heat exchanger 420 are both connected to thefirst evaporation branch 414, thus guiding part of the relatively large volume of liquid refrigerant accumulated in thefirst evaporation branch 414 to enter themain body part 420c of thebypass heat exchanger 420, and after heat exchange with thedisplay region 320 is implemented in themain body part 420c via the top plate 311a, this part of liquid refrigerant is guided back to thefirst evaporation branch 414, thus returning to the regular refrigeration cycle. - Optionally, the inlet end 420a and the
outlet end 420b of thebypass heat exchanger 420 may also be connected into theevaporator 410 from an elbow joint of anyheat exchange pipeline 412 of theevaporator 410. A conventional finned heat exchanger is generally assembled by inserting one end to a long U-shaped pipe and welding an elbow on the other end. Therefore, the connection of thebypass heat exchanger 420 into theevaporator 410 via the elbow joint can effectively use the existing connection end at this position, which does not need to make too many improvements on existing components, is easy to implement, and is low in costs. Optionally, the inlet end 420a and theoutlet end 420b of thebypass heat exchanger 420 may also be connected into theevaporator 410 from a joint between anyheat exchange pipeline 412 of theevaporator 410 and a fin, and this can also achieve the technical effect of guiding part of the refrigerant into thebypass heat exchanger 420. Optionally, the inlet end 420a and theoutlet end 420b of thebypass heat exchanger 420 may also be connected into theevaporator 410 from a branch pipe of anydispenser 411 of theevaporator 410. Because thedispenser 411 is located outside theevaporator 410, machining is easier by selecting this position as a connection port. It should be understood that asteam return pipe 413 is not suitable to be used as a connection point of thebypass heat exchanger 420, because the refrigerant at this position generally has relatively low dryness and relatively poor heat transfer performance. - Besides, there are also several embodiments for a specific connection manner of connecting the
bypass heat exchanger 420 into theevaporator 410. - For example, the inlet end 420a and the
outlet end 420b of thebypass heat exchanger 420 may be directly welded to theevaporator 410. This connection manner is operated quickly, is easy to machine, and has excellent connection tightness. For another example, the inlet end 420a and theoutlet end 420b of thebypass heat exchanger 420 may also be connected to theevaporator 410 through a pipe joint. When this connection manner is employed, thebypass heat exchanger 420 may be produced and processed as a standard component, and the connection between thebypass heat exchanger 420 and theevaporator 410 can be implemented by using different pipe joints according to different actual application conditions. Persons skilled in the art should understand that, the pipe joint herein is not limited to a connection device at an end portion of a heat exchange tube, but may further properly include a connection hose or connection pipe according to the actual condition.FIG. 3 shows an implementation of a pipe joint 430 including a hose. - The
bypass heat exchanger 420 itself may also have multiple structure forms. The embodiment inFIG. 3 provides a simple, feasible and efficient form. That is, thebypass heat exchanger 420 is designed as a single heat exchange tube in reciprocating arrangement, which not only facilitates the connection between thebypass heat exchanger 420 and thecabinet body 310 but also provides a heat exchange passage as long as possible, to enhance the heat transfer effect. - Optionally, the embodiment of the present invention further includes several improvements on conventional components of the refrigeration display cabinet system. For example, the air may be allowed to circulate among the
bottom part 311, therear part 312, and thetop part 313 of thecabinet body 310; besides, the air curtain is formed between thebottom part 311 and thetop part 313, and causes cold air to flow from the top down. From this, the air flow system coordinates with the refrigeration system in the refrigeration display cabinet system. After being cooled by the refrigeration system at thebottom part 311 of thecabinet body 310, the cold air flows through therear part 312 and thetop part 313 sequentially, and flows downward from thetop part 313 back to the bottom part, thus forming an air curtain at the display port of thedisplay region 320. - Optionally, the
evaporator 410 may be disposed in thebottom part 311 or therear part 312 of thecabinet body 310; both can achieve a desirable heat exchange effect with the air, without affecting the appearance of the display cabinet. - Optionally, the refrigeration display cabinet system further includes an evaporator fan, which may be disposed in the
bottom part 312 of thecabinet body 310, thereby driving the air to enter thecabinet body 310, and completing the whole circulation from the bottom up. - Optionaly, a vent hole may further be provided in the
rear part 312 of thecabinet body 310, and the vent hole may be disposed corresponding to a goods display area in thedisplay region 320, thereby ensuring a better refrigerating effect for commodities placed therein. Further, a specific implementation manner of the goods display area may be several shelves321 in thedisplay region 320. - A working process of the present invention will be described below with reference to the above embodiments: on one hand, the air is suctioned into the
bottom part 311 of thecabinet body 310 under the driving of the evaporator fan, and implements heat exchange with theevaporator 410 therein; the cooled air continues to flow to therear part 312 of thecabinet body 310;one part of the air enters thedisplay region 320 via the vent hole at this position and cools commodities on theshelves 321; the other part of the air continues to flow upward to thetop part 313 of thecabinet body 310, and flows downward from the front side of thetop part 313 back to thebottom part 311, thereby forming an air curtain at the display port of thedisplay region 320, to form effective insulation between the external environment and the inner side of thedisplay region 320. On the other hand, in the refrigeration system, after being compressed by the compressor, the high-temperature gaseous refrigerant flows into the condenser for cooling, and the cooled refrigerant enters theevaporator 410 after being throttled by the throttling element. Most of the low-temperature liquid refrigerant entering theevaporator 410 will exchange heat with the air that flows by; the remaining low-temperature liquid refrigerant (for example, the refrigerant at the bottom of the evaporator) that fails to fully exchange heat with the air that flows by will flow to the top plate 311a of thebottom part 311 of thecabinet body 310 under the guidance of thebypass heat exchanger 420, directly contact the top plate 311a, provide the refrigerating capacity for the commodities in thedisplay region 320 to implement sufficient cooling of the commodities, and then flow back to theevaporator 410. All of the refrigerant will return to the compressor from theevaporator 410, to start a new round of refrigeration cycle. - As an alternative, the present invention further provides an implementation of another refrigeration display cabinet system. Part of the structure of the refrigeration display cabinet system has a structural arrangement similar to that in the above embodiment. That is, the
refrigeration display cabinet 300 also includes acabinet body 310 and adisplay region 320 enclosed by thecabinet body 310. Therefrigeration system 400 also includes a compressor, a condenser, a throttling element, and anevaporator 410 that sequentially communicate with each other through a pipeline. The two major systems have similar structures and arrangement requirements. The distinguishing improvement thereof lies in that, amain body part 420c of abypass heat exchanger 420 included in therefrigeration system 400 of the present invention is integrated in thecabinet body 310, to implement better heat exchange with the display region. In this case, as a refrigerant of thebypass heat exchanger 420 directly exchanges heat with thedisplay region 320 via a wall surface of thecabinet body 310, such a heat exchange effect will be much better than that of indirectly transferring, through air, the refrigerating capacity carried by the refrigerant in theevaporator 410 to thedisplay region 320, because the loss in the heat exchange process thereof is minimized. Moreover, according to an actual application condition, thebypass heat exchanger 420 may be disposed in a wall surface, of thecabinet body 310, which corresponds to an area with a relatively high temperature in thedisplay region 320, to specifically cool this area, thus improving the work efficiency of the refrigeration display cabinet. - For the arrangement of the bypass heat exchanger in the above embodiment of the present invention, in principle, it should be arranged in the wall surface, corresponding to the area with a relatively high temperature, of the cabinet body as far as possible. However, multiple aspects such as an actual available space, arrangement costs, simplicity and reliability of the display cabinet should also be considered comprehensively in an actual process. Herein, several arrangement manners of the bypass heat exchanger are provided for reference.
- According to the present invention, the
bypass heat exchanger 420 is arranged in thebottom part 311, is in contact with a top plate 311a of the bottom part, and exchanges heat with the display region. For example, themain body part 420c of thebypass heat exchanger 420 may be integrated in a top plate 311a of abottom part 311, and exchanges heat with thedisplay region 320. Through experimental study, it is found that mostrefrigeration display cabinets 300 have relatively poor refrigeration effects at the lower portion of thedisplay region 320. Therefore, it is very necessary to enhance heat exchange with thedisplay region 320 at this position by means of thebypass heat exchanger 420. For such an arrangement manner, multiple connection manners may be used to implement the connection between themain body part 420c of thebypass heat exchanger 420 and thecabinet body 310. For example, themain body part 420c of thebypass heat exchanger 420 may be integrated, in a foamed form, in thecabinet body 310, and only the inlet end 420a and theoutlet end 420b thereof are exposed on the external side, to implement a connection with theevaporator 410. - For a specific connection manner between the bypass heat exchanger and the evaporator mentioned in this embodiment of the present invention, there are also several implementations similar to those in the above embodiment. Similarly, the evaporator may include several evaporation branches, wherein a first evaporation branch is included. The inlet end and the outlet end of the bypass heat exchanger are both connected to the first evaporation branch. The first evaporation branch is selected on the basis of the following principle. That is, when the refrigeration display cabinet system works, the first evaporation branch accumulates the largest volume of liquid refrigerant among all the evaporation branches of the evaporator. In this case, the connection of the bypass heat exchanger may achieve an effect of specifically heating the refrigeration display cabinet on one hand, and on the other hand, can further effectively avoid the frosting and freezing phenomena in the heat exchange pipeline at this position. For example, similar to the embodiment shown in
FIG. 3 , thefirst evaporation branch 414 is located at the lower portion of theevaporator 410. In this case, the inlet end 420a and theoutlet end 420b of thebypass heat exchanger 420 are both connected to thefirst evaporation branch 414, thus guiding part of the relatively large volume of liquid refrigerant accumulated in thefirst evaporation branch 414 to enter themain body part 420c of thebypass heat exchanger 420, and after heat exchange with thedisplay region 320 is implemented in themain body part 420c via the top plate 311a, this part of liquid refrigerant is guided back to thefirst evaporation branch 414, thus returning to the regular refrigeration cycle. - Similarly, the inlet end 420a and the
outlet end 420b of thebypass heat exchanger 420 may also be connected into theevaporator 410 from an elbow joint of anyheat exchange pipeline 412 of theevaporator 410; and/or connected into theevaporator 410 from a joint between anyheat exchange pipeline 412 of theevaporator 410 and a fin; and/or connected into theevaporator 410 from a branch pipe of anydispenser 411 of theevaporator 410. - In addition, for such a
bypass heat exchanger 420 integrated in the cabinet body, the inlet end 420a and theoutlet end 420b thereof may also be directly welded to theevaporator 410. This connection manner is operated quickly, is easy to machine, and has excellent connection tightness. For another example, the inlet end 420a and theoutlet end 420b of thebypass heat exchanger 420 may also be connected to theevaporator 410 through a pipe joint. When this connection manner is employed, thebypass heat exchanger 420 may be produced and processed as a standard component, and the connection between thebypass heat exchanger 420 and theevaporator 410 can be implemented by using different pipe joints according to different actual application conditions. - The
bypass heat exchanger 420 itself may be designed as a single heat exchange tube in reciprocating arrangement similarly, which not only facilitates the connection between thebypass heat exchanger 420 and thecabinet body 310 but also provides a heat exchange passage as long as possible, to enhance the heat transfer effect. - In the description of the present invention, it should be understood that direction or position relations indicated by "upper", "lower", "front", "rear", "left", "right" and the like are direction or position relations based on the figures, are merely used to facilitate the description of the present invention and to simplify the description rather than indicating or implying that the indicated device or feature must have the specific direction or be constructed and operated in the specific direction, and therefore cannot be construed as a limitation to the present invention.
- The above examples mainly describe the refrigeration display cabinet system, the refrigeration system having the same, and a control method thereof according to the present invention. Although only some implementations of the present invention are described, persons of ordinary skill in the art should understand that the present invention may be implemented in many other manners without departing from the purport and scope of the present invention. Therefore, the illustrated examples and implementations are regarded as illustrative rather than limitative, and the present invention may cover various modifications and replacements without departing from the scope of the present invention as defined in the appended claims.
Claims (14)
- A refrigeration display cabinet system, comprising:a cabinet body (310);a display region (320) enclosed by the cabinet body;a refrigeration system comprising a compressor, a condenser, a throttling element, and an evaporator (410) that sequentially communicate with each other through a pipeline; and a bypass heat exchanger (420);wherein the bypass heat exchanger is disposed to be in contact with the cabinet body, and exchanges heat with the display region; wherein the display region has a display port in communication with the external through an air curtain andwherein the cabinet body comprises a bottom part (311) located under the display region; characterized in that an inlet end (420a) and an outlet end (420b) of the bypass heat exchanger (420) are both connected to the evaporator (410); wherein the bypass heat exchanger is arranged in the bottom part, is in contact with a top plate (311a) of the bottom part, and exchanges heat with the display region.
- The refrigeration display cabinet system according to claim 1, wherein a clamping member is disposed on the top plate (311a) of the bottom part (311), and the bypass heat exchanger (420) is clamped to the top plate of the bottom part via the clamping member.
- The refrigeration display cabinet system according to claim 1, further comprising an adhesive member, wherein the bypass heat exchanger (420) is adhered, from the bottom up, to the top plate (311a) of the bottom part (311) via the adhesive member.
- The refrigeration display cabinct system according to any one of claims 1 to 3, wherein the evaporator (410) comprises a first evaporation branch (414), and both the inlet end (420a) and the outlet end (420b) of the bypass heat exchanger are connected to the first evaporation branch; wherein, the refrigeration display cabinet system is configured such that, in use, the first evaporation branch accumulates the largest volume of liquid refrigerant among all evaporation branches of the evaporator.
- The refrigeration display cabinet system according to claim 4, wherein the first evaporation branch (414) is located at a lower portion of the evaporator (410).
- The refrigeration display cabinet system according to any one of claims 1 to 3, wherein the inlet end (420a) and the outlet end (420b) of the bypass heat exchanger (420) are connected into the evaporator from an elbow joint of any heat exchange pipeline of the evaporator (410); and/or connected into the evaporator from a joint between any heat exchange pipeline of the evaporator and a fin; and/or connected into the evaporator from a branch pipe of any dispenser of the evaporator.
- The refrigeration display cabinet system according to any one of claims 1 to 3, wherein the inlet end (420a) and the outlet end (420b) of the bypass heat exchanger (420) are welded to the evaporator (410).
- The refrigeration display cabinet system according to any one of claims 1 to 3, wherein the inlet end (420a) and the outlet end (420b) of the bypass heat exchanger (420) are connected to the evaporator (410) through a pipe joint.
- The refrigeration display cabinet system according to any one of claims 1 to 3, wherein the bypass heat exchanger (420) is a single heat exchange tube in reciprocating arrangement.
- The refrigeration display cabinet system according to any one of claims 1 to 3, wherein the cabinet body (310) comprises the bottom part (311) located under the display region; a top part (313) located above the display region (320); and a rear part (312) located behind the display region; the bottom part, the rear part, and the top part allow air to circulate from one another; and the air curtain is formed between the bottom part and the top part.
- The refrigeration display cabinet system according to claim 10, wherein the evaporator (410) is disposed in the bottom part (311) or in the rear part (312).
- The refrigeration display cabinet system according to claim 10, further comprising an evaporator fan (211), which is disposed in the bottom part (311).
- The refrigeration display cabinet system according to claim 10, wherein a vent hole is further disposed in the rear part, and the vent hole is disposed corresponding to a goods display area in the display region (320).
- The refrigeration display cabinet system according to claim 13, wherein the display region (320) comprises several shelves, and the goods display area is the shelves.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201610075233.7A CN107028432B (en) | 2016-02-03 | 2016-02-03 | Refrigeration showcase system |
PCT/US2017/014533 WO2017136172A1 (en) | 2016-02-03 | 2017-01-23 | Refrigeration display cabinet system |
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EP3411652A1 EP3411652A1 (en) | 2018-12-12 |
EP3411652B1 true EP3411652B1 (en) | 2022-03-23 |
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EP17703015.2A Active EP3411652B1 (en) | 2016-02-03 | 2017-01-23 | Refrigeration display cabinet system |
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EP (1) | EP3411652B1 (en) |
CN (1) | CN107028432B (en) |
WO (1) | WO2017136172A1 (en) |
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CN118031487A (en) * | 2024-04-15 | 2024-05-14 | 上海东方低碳科技产业股份有限公司 | Energy-saving refrigeration equipment with self-adaptive function |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US2065538A (en) * | 1930-07-31 | 1936-12-29 | Gen Motors Corp | Refrigerating apparatus |
US2764875A (en) * | 1955-01-26 | 1956-10-02 | Whirlpool Seeger Corp | Household refrigerators of the two temperature type |
JPH0730992B2 (en) * | 1990-04-12 | 1995-04-10 | 三洋電機株式会社 | Flower showcase |
CN1125309C (en) * | 1996-10-02 | 2003-10-22 | 松下电器产业株式会社 | Finned heat exchanger |
DE29910524U1 (en) * | 1999-06-16 | 1999-09-02 | Tm Tech Geraetebau Gmbh | Freezer for installation, especially in a bus |
CN1753634A (en) * | 2003-02-26 | 2006-03-29 | 开利商业冷藏公司 | Refrigerated display merchandiser with improved air curtain |
WO2005072566A1 (en) * | 2004-01-06 | 2005-08-11 | Carrier Commercial Refrigeration Inc. | Refrigerated display merchandiser with improved air curtain |
ES2597382T3 (en) * | 2006-12-21 | 2017-01-18 | Carrier Corporation | Refrigerator cabinet |
JP5388969B2 (en) * | 2010-08-23 | 2014-01-15 | 三菱電機株式会社 | Heat exchanger and air conditioner equipped with this heat exchanger |
CN101984880B (en) * | 2010-10-29 | 2012-01-25 | 浙江大学 | Diffusion absorbing refrigeration-based constant temperature and humidity system |
CN204963308U (en) * | 2015-07-31 | 2016-01-13 | 合肥美的电冰箱有限公司 | Evaporator assembly and refrigeration plant |
-
2016
- 2016-02-03 CN CN201610075233.7A patent/CN107028432B/en active Active
-
2017
- 2017-01-23 WO PCT/US2017/014533 patent/WO2017136172A1/en active Application Filing
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CN107028432B (en) | 2021-06-15 |
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EP3411652A1 (en) | 2018-12-12 |
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