CN104640482A

CN104640482A - Refrigerated sales cabinet

Info

Publication number: CN104640482A
Application number: CN201280074923.0A
Authority: CN
Inventors: O.斯塔科贝克
Original assignee: Carrier Corp
Current assignee: Carrier Corp
Priority date: 2012-08-01
Filing date: 2012-08-01
Publication date: 2015-05-20
Anticipated expiration: 2032-08-01
Also published as: CN104640482B; EP2879552A1; EP2879552B1; WO2014019622A1

Abstract

The invention discloses a refrigerated sales cabinet (20). The refrigerated sales cabinet (20) comprises a cabinet body (22) providing a refrigerated sales space for supporting refrigerated goods to be sold, a door frame (21) having a top post (34), a bottom post (36), and at least two upright posts (32), and at least one door (14). At least one of the posts (32, 34, 36) has a cold main body (4) and an insulating front element (9) comprising, from back to front, a rear panel (10) which is attached to the cold main body (4), a layer of a nanoporous aerogel material (12), and a front panel (11) forming the front surface of the post (32, 34, 36). Said insulating front element (9) provides a thermal insulation against the cold main body (4) of the post (9) and reduces condensation at the front surface of the front panel (11).

Description

Refrigeration sale case

Technical field

The present invention relates to a kind of refrigeration sale case.

Background technology

As is known in the art, refrigeration sale case comprises cabinet, side panel, doorframe and at least one door, and wherein side panel is arranged on the sidepiece of cabinet, and doorframe is arranged on cabinet, and door is arranged on doorframe, and sealing strip is located between cabinet door and doorframe.

Be exposed to front surface cooling when freezing sale case operation of the doorframe of environmental condition, and wet environment air is in this front surface place condensation, causes water droplet to occur, this is uncomfortable for client.Therefore, existence prevents the temperature on this surface to be reduced to the needs of below dew-point temperature.

Doorframe according to prior art comprises electrical heating elements, and it is kept above dew point, in order to avoid water condensation is on doorframe for making the temperature of front surface.The electric energy of electrical heating elements consumption is very high thus, and contribute to the gross energy consumed by the refrigeration sale case in operation considerably.

Therefore, it is beneficial that will reliably avoid the condensation at the front surface place of the doorframe of refrigeration sale case, and minimum power consumption simultaneously.

Summary of the invention

The sale case that freezes according to an embodiment of the invention comprises: cabinet, and it is provided for the refrigeration vend space of the refrigerated freight for sale supported wherein; Doorframe, it has top struts, bottom shore and at least two setting pillars; And at least one door.At least one pillar has the main body and the front element of insulation that provide structural frame members, and main body is cooled to lower temperature, because it is exposed to the spacial flex of the goods of cooling when freezing sale case operation.Before described insulation, element comprises the rear board, the heat insulation nanoporous aerogel material layer that are attached in cold main body from back to front, and the front panel of the front surface of formation pillar.Before described insulation, element provides the heat insulation of the cold main body relative to pillar, and thus avoids the condensation at the front surface place of front panel.

Accompanying drawing explanation

With reference to accompanying drawing, disclosure of the present invention will become and be easier to understand.Person of skill in the art will appreciate that, accompanying drawing is only exemplary, and is not intended to limit the scope of the invention.In the drawings:

Fig. 1 shows the decomposition view advancing into the refrigeration sale case of type according to an embodiment of the invention with door and doorframe, and

Fig. 2 shows the horizontal cross-section through a setting pillar of doorframe and the part of adjacent door.

Parts List

The main body of 4 pillars

The rear portion of 4a pillar

The sidepiece of 4b pillar

5 first hollow spaces

6 supporting members

7 second hollow spaces

8 first securing brackets

Element before 9 insulation

10 rear boards

10a sidewall bar

11 front panels

12 nanoporous aerogel material layers

13 second securing brackets

14

15 outer frame member

16 door face boards

16a vacuum layer

17 magnets or comprise the element of magnetic metal

18 sealing strips

19 magnets

20 refrigeration sale cases

22 cabinets

21 doorframes

24 top boards

26 base sections

27 rear walls

28 shelves

30 Left-Hand Panels

31 right panels

32 erect pillar

34 top struts

36 bottom shores.

Detailed description of the invention

Fig. 1 and 2 and following discussion describe specific embodiment of the present invention, to instruct those skilled in the art how to manufacture and to use optimal mode of the present invention.In order to instruct principle of the present invention, simplifying or having eliminated some conventional aspects.Those skilled in the art should be understood that, the modification being derived from these embodiments also fall in scope of the present invention.Those skilled in the art should be understood that, hereafter the feature of description can be combined in many ways, to form many modification of the present invention.Therefore, the invention is not restricted to following specific embodiment, and only by claims and equivalents thereof.

The refrigeration sale case 20 advancing into type with door 14 and doorframe 21 according to exemplary embodiment of the present invention has been shown in Fig. 1.

Refrigeration sale case 20 as shown in Figure 1 comprises cabinet 22, Left-Hand Panel 30, right panel 31, doorframe 21 and multiple door 14.Cabinet 22 comprises base section 26, top board 24, rear wall 27, and is arranged in multiple shelves 28 therebetween.

The whole refrigerating circuit comprising compressor, condenser, expansion gear and evaporimeter can be arranged in cabinet 22, to provide independently refrigerating cabinet, this refrigerating cabinet only needs to be connected on power supply and operates.

As alternative, only one or more evaporimeter can be arranged in cabinet 22, and evaporator configuration fluidly is connected to and is located on the refrigeration sale case external refrigeration loop in building wherein to be installed.

Refrigeration sale case can be cold beverage merchandisers, and it is configured to refrigerated storage temperature goods spacial flex being cooled to more than 0 DEG C.

As alternative, refrigeration sale case can be freezing sale case, and it is configured to cryogenic temperature goods spacial flex being cooled to less than 0 DEG C, specific to the temperature of less than-15 DEG C, to store and reefer cargo is showed potential customer.

On the left-hand side that Left-Hand Panel 30 and right panel 31 are arranged on cabinet 22 respectively and right-hand side.Comprising multiple vertically extending setting pillar 32, being arranged on erectting the doorframe 21 that pillar 32 is connected to horizontal top the pillar 34 and horizontal bottom pillar 36 gone up each other on the front side of cabinet 22 respectively.

Multiple cabinet door 14 is arranged on the front side of doorframe 21.Cabinet 22, Left-Hand Panel 30, right panel 31, doorframe 21 and cabinet door 14 are installed together, and are closed to be formed and store and spacial flex by the refrigerated freight that door 14 arrives by door 14.

Fig. 2 shows the horizontal cross-section of the part through a setting pillar 32 of doorframe 21 door 14 adjacent with two.

Such as, door 14 is the glass door 14 of insulation, and it comprises two face glass 16 be separated by middle vacuum layer 16a respectively.Face glass 16 is supported by outer frame member 15, and outer frame member 15 can be the extrusion element that plastics or metal (such as, aluminium) are made.

According to embodiments of the invention, each setting pillar 32 includes provides the main body 4 of structural frame members and the front element 9 of insulation, main body can be made up of aluminium or other high-strength material, and it is cooled to lower temperature, because it is exposed to cooled freight spacial flex when the sale case 20 that freezes operates.When checking in cross section, the cross section of cold main body 4 is essentially C shape, comprises rear portion 4a and two sidepiece 4b.Sidepiece 4b is arranged to be parallel to each other and perpendicular to rear portion 4a substantially.Interior support component 6 is arranged in cold main body 4, and it is arranged essentially parallel to rear portion 4a and extends, and the first microscler hollow space 5, first hollow space 5 provided in cold main body 4 is limited by interior support component 6, a rear portion 4a and two sidepiece 4b.Optionally, the first hollow space 5 can be filled with insulating materials, and such as, heat insulation foam, to strengthen the thermal insulation properties erectting pillar 32.

In the face of the front side of the interior support component 6 of door 14 is provided with two the first support elements 8, it extends in the plane of plane extension being arranged essentially parallel to door 14 relative to one another when door is arranged to the closing position being parallel to doorframe 21.Before insulation, element 9 to engage with the first support element 8 being located at interior support component 6 place by means of second support element 13 of correspondence at rear side place being located at rear board 10 and is installed on interior support component 6.Being bonded with each other of support element 8,13 allow for front element 9 convenience of insulation and is fixedly mounted in the cold main body 4 of setting pillar 32.

Before insulation, element 9 comprises in the face of interior support component 6 and comprises the rear board 10 of the second corresponding support element 13.Rear board 10 is substantially smooth, comprise sidewall bar 10a, there is C shape with box lunch when cross section, and the rear portion 4a being arranged essentially parallel to the cold main body 4 of the distance between leap two sidepiece 4b extends, thus two further microscler hollow spaces 7 are provided, it is limited by the rear board 10 of the front element 9 that insulate, a sidepiece 4b of cold main body 4 and interior support component 6 respectively.

The layer comprising nanoporous aerogel 12 is located on the front side of the C shape rear board 10 of element 9 before the insulation of door 14.

Before insulation, element 9 also comprises substantially smooth front panel 11, and it is located on the front side of door 14 nanoporous aerogel 12 relative with rear board 10.As a result, before nanoporous aerogel 12 is encapsulated between rear board 10 and front panel 11 insulation in element 9.This capsule protection nanoporous aerogel 12 before insulating in element 9 avoids destroying, and such as, erects pillar 32, and allow for cold main body 4 place that nanoporous aerogel 12 is easily mounted on setting pillar 32 further by door 14 or the improper impact of client.Before insulation, the first panel 10 of element 9 and the second panel 11 can be made up of any applicable plastics or metal material, such as, and aluminium or PVC or their combination.

The potted component 18 can be made up of elastomeric material (as rubber) is installed on the front panel 11 of the front element 9 of insulation about the periphery of door opening, for limiting the sealing of door 14 and stop surface, so that the aeroseal between the setting pillar 32 providing door 14 and doorframe 21 when door 14 is in its corresponding closing position.As alternative or in addition, potted component 18 can be installed on door 14.Potted component 18 is configured to prevent the refrigerated freight from refrigeration sale case 20 from storing and the cooling-air of spacial flex and the exchange of hot surrounding air.

Magnet 19 can be located in potted component 18, on or below, to attract metal outer frame component 15 that door 14 is locked in closing position securely, in order to avoid undesirably door capable of being opened 14.If outer frame member 15 is made up of plastics or nonmagnetic metal, then another magnet 17 or the element 17 that comprises magnetic metal can be located in outer frame member 15 or in outer frame member, to be attracted by the magnet 19 be located on or below potted component 18.

As alternative or in addition, in accompanying drawing, unshowned mechanical lock can be provided as so that lock door 14 securely.

Setting pillar 32 with reference to doorframe 21 describes exemplary embodiment of the present invention.But technical staff will readily appreciate that, main idea of the present invention also can be applied to top struts 34 and bottom shore 36 similarly, and they flatly extend, in order to avoid produce condensed water on the whole front surface of doorframe 21 between setting pillar 32.

According to exemplary embodiment, as described herein, before heat insulation, element is positioned at the front portion place of at least one pillar of the doorframe of refrigeration sale case, in order to avoid via the heat trnasfer erectting pillar, and keeps the temperature of front surface higher than dew point.Specifically, before this heat insulation, element comprises nanoporous aerogel material layer, and it has loose structure, and provides superior thermal insulation properties.Due to superior thermal insulation properties, therefore do not need heating doorframe in order to avoid surrounding air is in the condensation of doorframe place.

The present inventor finds, replace the pillar of the doorframe of heating and cooling sale case, can provide as limited in claim and the front element that insulate as described herein, it reliably can avoid the condensation at the front surface place of this pillar, this is believed contrary with general, until make the present invention.Before making time point of the present invention, do not exist can reliably avoid the condensation at the front surface place of this pillar experience simultaneously from refrigeration sale case rear portion constant cooling known or available insulation before element.Do not have available insulation technology can provide sufficient insulation reliably avoiding the specific location of the condensation in certain hour.

In an embodiment, the nanoporous aerogel material of nanoporous aerogel material layer has loose structure, and it has the hole dimension in a few nanometer range, particularly 1 to 10 nanometers.The nanoporous aerogel material with the loose structure of the hole dimension of band in described scope comprises good thermal insulation properties.Specifically, the thermal insulation properties of this nanoporous aerogel thermal insulation properties that becomes known for any traditional heat insulator of the insulation of such as building than them is good.

Aerogel material is the poromerics being derived from gel, and wherein the liquid component of gel is replaced by gas.Aerogel material is the solid with extra-low density and pole low heat conductivity.Aerogel material has transparent characteristic usually, and the polystyrene (foamed polystyrene) of the similar expansion of contiguous sense.By extracting liquid component aerogenesis in the next life gel rubber material of gel via supercritical drying.This allows liquid slowly to slough, and the solid matrix in gel can not be caused to collapse due to capillarity, and this will occur in routine evaporation.

Aerogel material is the drying material of rigidity, and its physical property is not similar to gel.Aerogel material can have tree-shaped microstructure, and wherein the spheric granules of average-size of 2 to 5nm fuses cluster together.These bunches form the highly porous structure of the three-dimensional of almost fractal chain.The average-size in hole and density can be controlled during manufacture process.

Nanoporous aerogel material is good heat insulator, because they have very little heat trnasfer relative to convection current, conduction and radiation.They are good conductance isolation body, because they are made up of almost completely gas, and gas is very weak heat conductor.

Particularly suitable nanoporous aerogel material is silica aerogel material, and it is the material based on silica being derived from silica gel.The aeroge of least density is 1mg/cm ³silica nanometer foam.Atmospheric density is 1.2mg/cm ³(under 20 DEG C and 1atm).By convention, calculate micro-lattice tightness time by deaeration quality.Consider interstitial air quality, the real density of not finding time of crystallite lattice is about 2.1mg/cm ³.Silica aerogel material has significant thermal insulation properties, and it has extremely low heat conductivity; 0.004W/mK is reduced to from 0.03W/m.

The example of the nanoporous aerogel material be applicable to is formed by the nano porous silicon dioxide aerogel felt pad of the Spaceloft by name manufactured by Aspen aeroge (Aspen Aerogel) company.

In one embodiment, described nanoporous aerogel material layer is clipped between described rear board and described front panel.In an alternative embodiment, described nanoporous aerogel material layer is fully encapsulated together with the sidewall bar that described rear board is corresponding to two with described front panel.This structure firmly fixes nanoporous aerogel material, and protects it from destruction.Its also allow nanoporous aerogel material easily and install easily.

In one embodiment, rear board and/or front panel comprise plastic material, particularly PVC.Plastic material (as PVC) provides the lightweight material of the cheapness with good thermal insulation properties.

In an embodiment, before insulation, element is attached in the cold main body of pillar by means of buckle connection, and particularly by being located at the securing bracket at the rear side place of rear board, it engages with the corresponding securing bracket being located at cold main body place.Before buckle connects permission respectively, element is easily installed on pillar and from pillar and easily pulls down.

Optionally, securing bracket can be provided as with the form of the track extended along the length of pillar.This type of track is produced by extruding, and provides firmly fixing in the whole length of pillar.

In one embodiment, door is formed as pivotable door, its can between closing position and at least one enable possition pivotable, described pivotable door has and hinged first sidepiece and pivotable second sidepiece relative with the first sidepiece.In closing position, the rear side of Men Yiqi second sidepiece against a setting pillar, and with the rear side of its upper and lower respectively against top struts and bottom shore.The pivotable door be in its closing position makes refrigeration vend space and ambient dielectric, in order to avoid cold air flows out refrigeration vend space, thus reduces the energy needed for cooling refrigeration vend space.In its enable possition, pivotable door allows easily arrive refrigeration vend space and wherein store and the goods shown.

In an embodiment, door closing position respectively against erectting the rear side of the second sidepiece of door of pillar, top struts and/or bottom shore, the rear side of the rear side on top and/or bottom is respectively equipped with potted component, and/or the front side of erectting pillar, top struts and/or bottom shore is respectively equipped with potted component.The potted component be located between door and pillar strengthens the insulating property (properties) of the door being in its closing position.

The front surface erectting pillar can be door provides backstop, to limit the position being in the door of its closing position.

In one embodiment, the second sidepiece and the setting pillar be associated of door, be particularly located at the potted component at the setting pillar place be associated, comprise two paired magnets or the combination of magnet and magnetic material element, door is remained on its closing position.This layout of at least two magnets and/or magnet and magnetic material element reliably prevents a unexpected unlatching or completely not closed, and it will allow cold air to flow out refrigeration vend space, thus the energy needed for increase cooling refrigeration vend space.

In an embodiment, provide two doors of at least one pair of, it has the pivotal orientation of mirror-inverted, a door is arranged in another side, wherein the pivotable the second end of two doors is in the face of each other, make in its corresponding closing position, the rear side of two Men Yiqi second sidepieces is against identical setting pillar.This of adjacent door arranges the goods allowing to store in convenient arrival refrigeration vend space.

In an embodiment, door comprises at least one inserts of glass respectively, allow for and sees in refrigeration vend space when not opening at least one.

In an embodiment, refrigeration sale case is configured to the cryogenic temperature cooling of refrigeration vend space being dropped to less than 0 DEG C, the special temperature arriving less than-15 DEG C.This allow that and store and reefer cargo is showed potential customer.The good thermal insulation properties particular importance at this low temperature of element before insulation, so that the condensation reducing the front surface place of refrigeration sale case.

Refrigeration sale case can be independently refrigerating cabinet, and it comprises needs only to be connected to the whole refrigerating circuit that power supply operates.As alternative, refrigeration sale case can only comprise at least one evaporimeter, and it will be fluidly connected on external refrigeration loop, and external refrigeration loop is arranged on freezes in the building that is placed in one of sale case.

Although describe the present invention with reference to exemplary embodiment, it will be understood by those of skill in the art that, can make a variety of changes and equivalent its element alternative, and can not depart from the scope of the present invention.In addition, remodeling can be made and be applicable to instruction content of the present invention to make particular condition or material, and its essential scope can not be departed from.Therefore, be intended to the invention is not restricted to disclosed specific embodiment, but the present invention will comprise all embodiments fallen in the scope of claims.

Claims

1. refrigeration sale case (20), comprising:

Cabinet (22), it is provided for supporting the refrigeration vend space of refrigerated freight wherein to be vended;

There is the doorframe (21) of top struts (34), bottom shore (36) and at least two setting pillars (32);

At least one door (14);

At least one in wherein said pillar (32,34,36) has cold main body (4) and the front element (9) of insulation,

Before described insulation, element (9) comprises the layer being attached to rear board (10) on described cold main body (4), comprising nanoporous aerogel material (12) from back to front, and form described pillar (32,34,36) front panel (11) of front surface

Before described insulation, element (9) provides the heat insulation of the cold main body (4) relative to described pillar (9).

2. refrigeration sale case (20) according to claim 1, wherein, the nanoporous aerogel material of the layer of described nanoporous aerogel material (12) has the loose structure with the hole dimension in a few nanometer range, specifically 1 to 10 nanometers.

3. according to refrigeration sale case (20) according to claim 1 or claim 2, wherein, described nanoporous aerogel material is silica aerogel material, described silica aerogel material is the material based on silica being derived from silica gel, and has the heat conductivity between 0.03W/mK to 0.004W/mK.

4. according to refrigeration sale case (20) in any one of the preceding claims wherein, wherein, the layer of described nanoporous aerogel material (12) is clipped between described rear board (10) and described front panel (11), and/or wherein said rear board (10) and described front panel (11) fully encapsulate the layer of described nanoporous aerogel material (12) together with two respective side walls bars (10a).

5. according to refrigeration sale case (20) in any one of the preceding claims wherein, wherein, described rear board (10) and/or described front panel (11) comprise plastic material, particularly PVC.

6. according to refrigeration sale case (20) in any one of the preceding claims wherein, wherein, before described insulation, element (9) connects (8 by means of buckle, 13) described pillar (32 is attached to, 34,36) in cold main body (4), particularly by being located at second securing bracket (13) at the rear side place of described rear board (10), it engages with corresponding the first securing bracket (8) being located at described cold main body (4) place.

7. according to refrigeration sale case (20) in any one of the preceding claims wherein, wherein, described door (14) is formed as pivotable door (14), described door can between closing position and at least one enable possition pivotable, described pivotable door (14) has and hinged first sidepiece and pivotable second sidepiece relative with described first sidepiece; And/or wherein said door (14) in described closing position with the rear side of its second sidepiece against a described setting pillar (32), and respectively with the rear side of its upper and lower against described top struts (34) and described bottom shore (36).

8. refrigeration sale case (20) according to claim 7, wherein, when described door (14) is in its closing position respectively against described setting pillar (32), the rear side of the second sidepiece of the described door (14) of described top struts (34) and/or described bottom shore (36), the rear side on top and/or the rear side of bottom are provided with at least one potted component (18), and/or wherein said setting pillar (32), the front side of described top struts (34) and/or described bottom shore (36) is respectively equipped with at least one potted component (18).

9. according to claim 7 or refrigeration sale case according to claim 8 (20), wherein, second sidepiece of described door (14) and the described setting pillar (32) be associated, the potted component (18) at setting pillar (32) place be associated described in being particularly located at, comprise two paired magnets (17,19) or magnet (17) and comprise the combination of element (19) of magnetic material, described door (14) is remained on closing position.

10. the refrigeration sale case (20) according to any one of claim 7 to claim 9, wherein, provide two doors (14) of at least one pair of of the pivotal orientation with mirror-inverted, one on another side, wherein the pivotable the second end of two doors (14) is in the face of each other, make in described closing position, two doors (14) with the rear side of its second sidepiece against described identical setting pillar (32).

11. according to refrigeration sale case (20) in any one of the preceding claims wherein, wherein, described refrigeration sale case (20) is configured to the cryogenic temperature described refrigeration vend space cooling being dropped to less than 0 DEG C, specifically arrives the temperature of less than-15 DEG C.