RU204840U1 - Collapsible refrigerated display case with convection cooling - Google Patents

Abstract

The utility model relates to commercial equipment, namely to display cabinets with refrigeration. The task to be solved of the claimed utility model is to expand the arsenal of technical means of refrigerating chambers for display cabinets, which is achieved through the implementation of a collapsible refrigerated display cabinet with convection cooling, containing a refrigeration unit including a compressor, a condenser, an evaporator, and a fan (s) and a refrigerating chamber that includes side walls, back and front walls, top and bottom panels made of thermal insulation materials, and shelves; the refrigeration unit is mounted on a single flat mounting panel, which is located on top of the refrigeration chamber on its top panel, the evaporator and fans are enclosed in a heat-insulating casing; the upper panel of the refrigerating chamber has through holes, the refrigerating chamber contains racks for fixing the walls and panels, the front wall is made of horizontally arranged rows of blocks, of which all blocks of the upper row include transparent material and have the function of block-by-block access to the inner space of the refrigerating chamber, and the blocks of the lower rows do not have this function; the bottom and top panels, back wall, refrigeration unit and frame with doors are scalable to the length of the display cabinet. 17 p.p. f-ly, 4 dwg.

Description

The utility model relates to commercial equipment, namely to refrigerated display cabinets.

Currently, display cabinets with refrigerated chambers are widespread in shops, bars, restaurants. In most cases, the designs of such cabinets differ little and represent a chamber or a set of chambers, the air space of which is cooled using refrigeration units, including a compressor, a condenser and an evaporator. A typical example of such a design is, for example, the display cabinets of the Terem-Kholod company (http://terem-holod.ru/produkcija/holodilnoe-oborudovanie/steklyannie-i-gluhie-fronty/). The disadvantage of such structures is a significant temperature spread over the volume of the cooled chamber, which is associated with the need for additional measures to normalize the microclimate, increased labor costs for the production of components and during installation, reduced maintainability, and constructive obstacles for convective air exchange.

Also known is the design of a refrigerator cabinet containing an exhibition module in the form of a heat-insulated cabinet with internal shelves, the front side of which is equipped with a transparent door, and in the upper part there is a facing box formed by the front and side walls, with an installation opening on the rear side, and inside the specified box a removable cooling module is installed, containing a compressor, a condenser and an evaporator, enclosed in a heat-insulating casing, and the compressor, condenser and evaporator are mounted directly on a single base plate, and the ceiling panel of the exhibition module and the base plate of the cooling module are equipped with mating holes for air circulation, characterized in that that the evaporator is mounted on the rear of the base plate parallel to the rear of the cabinet, and the holes indicated form two channels with an elongated cross-section, parallel to the rear of the cabinet, the first of which is located closer to the center of the ceiling panel and communicates on one side directly with the internal volume of the cabinet and on the other side - with the evaporator inlet, and the second is located closer to the rear of the ceiling panel and communicates on one side with the evaporator outlet, and on the other - with the air duct running along the entire rear panel cabinet and equipped with outlet openings made between each pair of shelves and leading into the inner volume of the cabinet (RF patent for utility model No. 197434, MKI A47F 3/04, F25D 17/06, 2020). The disadvantages of such a system are the increased labor costs for the production of components, as well as during the installation of the cabinet, the lack of interchangeability of structural elements, the reduced maintainability of the product, and the inability to horizontally scale the product modules.

The closest in terms of the set of essential features to the claimed utility model is a modular refrigerating display system assembled at the point of sale and containing:

a plurality of components for a modular refrigeration unit capable of being assembled at the point of sale into at least one display case providing visual access to the interior of the display case, and at least one stationary unit, and the visual access to the interior of the display case is provided by part showcases, wherein the plurality of components are arranged to be stacked one on top of the other and placed in a generally flat configuration when not assembled, and at least one showcase is configured to be attached to the upper surface of at least one stationary unit, which includes a convective-conductive refrigeration unit pre-assembled at a location remote from the point of sale and detachably attached to a modular refrigeration unit, and the display case includes a sensor system that is associated with a conductive refrigeration unit and a plurality of components for a modular refrigeration unit. A th installation includes one or more of the following: top walls, bottom walls, side walls, back walls, doors, front walls, and shelves. The specified modular refrigeration display system in the minimum version is a single-section display cabinet with a refrigeration unit located at the bottom of the refrigerated chamber (RF patent for invention No. 2560271, MKI A47F 3/04, 2012). The disadvantages of such a system are the increased labor costs for the production of components, as well as during the installation of the cabinet, the lack of interchangeability of structural elements and reduced maintainability, the lack of the possibility of horizontal scaling of product modules. In addition, the design of the cabinet does not allow for long-term storage of products and requires increased labor costs for replenishing and replacing products on the gold shelf and in the zone of optimal consumer access.

The problem to be solved of the claimed utility model is to expand the arsenal of technical means of collapsible refrigerating chambers for a display cabinet.

Achievement of the specified technical result in the claimed utility model is achieved through the implementation of a collapsible refrigeration display cabinet with convection cooling, containing at least one refrigeration unit, including a compressor, condenser, evaporator, as well as fan (s) and at least at least one refrigerating chamber, which includes side walls, back and front walls, top and bottom panels made of thermal insulation materials, as well as shelves. The claimed design differs from the previously known ones in that the refrigeration unit is mounted on a single flat mounting panel, which is located on top of the refrigerating chamber on its top panel, the evaporator and fan (s) are enclosed in a heat-insulating casing, and a part of the mounting panel is enclosed in this casing, and also the upper panel of the refrigerating chamber has through holes matched in size and location for the implementation of forced convection exchange along the closed volume of the cabinet, the refrigerating chamber contains racks for fastening walls and panels, as well as brackets for placing shelves, while the dimensions of the lower and upper panels, as well as side walls, respectively, are unified, the bottom and top panels, as well as the refrigeration unit are scalable along the length of the display cabinet, the back wall is made in horizontal rows by a set of unified panels and is scalable along the length of the display cabinet, the front wall is horizontally arranged rows of blocks, of which all blocks of the upper row include transparent material and have the function of block-by-block admission to the inner space of the refrigerating chamber, and in all blocks of the lower rows the function of admission to the inner space of the refrigerating chamber is absent, there is also the possibility of scaling by a set of consistently arranged blocks of the indicated rows of the front wall along the width of the display cabinet, at the same time the size of the brackets along the width of the display cabinet at different vertical levels differs.

For an unambiguous and more complete understanding of the description of the claimed invention, the following are clarifications and disclosures of the concepts and terms used above, as well as a description of the structure.

The claimed collapsible refrigerated display case with convection cooling is intended for use in shops, bars, restaurants, namely for storing food in a chilled air atmosphere at temperatures from -15 ° C to -18 ° C and below with the possibility of visual, although would be partial, inspected and accessed by buyers. The display cabinet has a convection cooling mode, which is carried out through the use of a refrigeration unit consisting of a compressor, a condenser, an evaporator, and fans. The equipment in the specified aggregate is mounted on a single panel of a unified size, which is mounting and has a flat shape. The unified size of the mounting panel allows, if necessary, for example, during repairs, to remove and replace the refrigeration unit, as well as to move it in the required direction without distortions and disassembling the entire display cabinet or its part. Thus, the mounting panel with the refrigeration unit mounted on it constitutes a cooling module and is an independent mounting unit. The cooling module is mounted on the top panel of the display cabinet and can be scaled along the arrangement of the top panels in the required amount to achieve the specified cooling mode in the working space of the chamber. In the specified cooling module, the evaporator and fans are located on one side of the mounting plate and are enclosed in a heat-insulating casing. Part of the mounting panel enclosed in this casing has through holes for convection air exchange with the volume of the refrigerating chamber. These holes are aligned with the corresponding holes in the top panel of the cabinet for the same purpose. The evaporator has a predominantly flat configuration and is oriented perpendicularly along the length of the mounting plate. In this case, there can be several fans, preferably two. The axis of the fans is preferably parallel to the plane of the mounting plate and perpendicular to the plane of the evaporator. The edges of the through-holes in the mounting plate have a reinforcing bezel. The cooling module, as a rule, is enclosed with decorative and protective panels. Placing the cooling module on top of the refrigerating chamber allows to increase the working volume of the refrigerating chamber of the display cabinet. The number of refrigeration modules that the display cabinet contains is determined by maintaining the required temperature regime in the refrigerating chamber, the size of the cabinet and the power of the compressor. For example, a display cabinet 937 mm long contains one cooling module, 1875 mm long - two cooling modules, 2500 mm long - three cooling modules.

The refrigerating chamber of the display cabinet consists of the following structural elements: rear wall, front wall, side walls, top and bottom panels, as well as racks, while the lower panel of the chamber serves as the bottom. All of these elements have a flat rectangular shape and are made of heat-insulating materials. A feature of the camera device is the unification of the size and shape, mirrored structure elements, i.e. there is a corresponding unification of structural elements. Thus, the outer dimensions of the top and bottom panels are the same. The upper panels, designed to accommodate the cooling module, have through holes for convection air exchange through them. These holes in shape and location are coordinated with the holes in the mounting plate of the cooling module, as already mentioned above. The side walls also have the same size and shape. The back wall is made in rows of unified predominantly flat panels in 2 rows. The refrigerating chamber of the display cabinet consists of the indicated elements, connected by means of racks. Such a connection is carried out by fixing the panels and walls at the mounting points using, for example, threaded rivets.

The front wall is made of horizontally arranged rows of blocks, of which all blocks of the upper row always include transparent material and have the function of block-by-block admission to the inner space of the refrigerating chamber, and in all blocks of the lower rows there is no function of admission to the inner space of the refrigerating chamber. The blocks of the upper row are made in the form of opening doors, which allows customers to access products in the inner space of the cabinet. Such doors are, as a rule, a solid frame made of solid materials with a sealed glass unit. Here, the frame materials can be steel, aluminum, plastic profiles. At the same time, the blocks of the lower rows, which are made without the function of admitting buyers into the inner space of the cabinet, are mainly multilayer opaque block-panels of a flat or convex shape, containing thermal protection. However, in some embodiments, such blocks can also be made transparent. Most often, the blocks of the lower row are made opaque. There is also the possibility of connecting several blocks in length, i.e. execution at the same time, as a single block-panel. The function of preventing customers from entering the inner space of the cabinet is achieved by attaching these blocks to the cabinet structure using fasteners and connections. In addition, a number of units without the function of admitting customers into the inner space of the cabinet can be made from above. The most preferable design of the front wall consists in its execution in 3 horizontal rows. In this case, the upper horizontal row is made by blocks with the inclusion of a transparent material, and all blocks have a function of admission to the inner space of the refrigerating chamber, i.e. these blocks are doors. The blocks of the two lower rows do not have a function of admission to the inner space of the refrigerating chamber, i.e. these panels cover the lower part of the refrigerator compartment and prevent cold losses (reduce heat transfer). The bottom row of these blocks is usually made opaque, and the row above it can be made of double-glazed windows.

Rows of blocks without the function of admitting customers into the inner space of the cabinet allow organizing space (compartment) for storing food at their level inside the refrigerating chamber. This is especially appropriate for the case of a row of blocks located at the bottom. In this case, a space with a colder zone is formed, the temperature in which can be 3-10 ° C lower than the average temperature in the refrigerating chamber.

The design of the front wall makes it possible to scale by a set of consistently located blocks of all rows of the front wall along the width of the display cabinet, at the same time the size of the brackets along the width of the display cabinet at different vertical levels differs.

The racks of the display cabinet represent a vertically extended metal profile, most often it is a perforated profile pipe, for example, a rectangular pipe 40 × 60 × 2.5 mm. The extreme racks have upper and lower horizontal traverses along the width of the cabinet, directed along the location of the sides. The central (inner) racks have only an upper horizontal traverse, normally directed towards the front wall of the cabinet. Racks and traverses can be made of various construction materials, for example: steel, aluminum alloys, polyurethane, polypropylene, polystyrene, and composite materials. According to the form of execution, it is most often a hollow profiled profile. Fastening the walls and panels to the uprights is most often performed using threaded rivets. Brackets are fixed on the perforations of the racks, on which the shelves are located. The shelves are predominantly arranged in rows, for which, respectively, brackets are placed in rows. The brackets are positioned along the width of the cabinet, normally to the rear wall, while their size is always less than the inner width of the cabinet, and also due to the need for a technological and structural gap to the front wall. Brackets located at the level and near the interface of the rows of blocks without the function of access to the inside of the cabinet have a smaller length along the width of the cabinet to ensure the loading and removal of products.

To increase the strength of the display cabinet, the constituent elements can have appropriate reinforcements, for example, inserts, strips, edging.

The described design assumes a reduction in the nomenclature range and a decrease in labor costs of production in connection with the unification of components. The unification of component structural elements in shape and size leads to a decrease in the labor intensity of installation. The interchangeability of structural elements increases the maintainability of the product and reduces the labor intensity of maintenance.

An important feature of the claimed design is the ability to scale the product linearly in length. Here, scaling should be understood as an increase in the size of the device (product), in this case, linearly along the length of the device due to the use of standardized structural elements.

The refrigerating chamber design described above is a minimal design and is a structural or sub-assembly unit capable of horizontal linear scaling by connecting already assembled sub-assemblies along a line. Moreover, the units can be pre-assembled with or without side walls. Another possibility of organizing an extended product line is the formation of an extended product line immediately during installation by connecting unified elements. The number of assembly units of a fully assembled display cabinet or the scaling factor is determined by production needs or the size of the room.

In practice, the size of the top, bottom and rear panels, as well as door blocks along the length of the cabinet location or along the location line, can be the following values: 937, 1250, 1875, 2500, 937 + 937 = 1875 (rounded off), 1250 + 1250 = 2500, 1250 + 1875 = 3125, 1875 + 1875 = 3750. These dimensions are determined by the size of the store's sales area and the need to build the required length of display cabinets. In practice, the maximum number of assembly units reaches 10-12 in a row with a total length of 18 to 23 m.

The claimed utility model is a technical solution, since is a solution to the problem of achieving the claimed technical result by creating a device consisting of structural elements, technologically and structurally interconnected. At the same time, the entire set of essential features of this utility model - the system of structural elements - is united by a single creative concept, namely, by ensuring increased manufacturability of structural elements, installation and repair of the device, as well as expanding its functionality due to the unification of the structural elements of the device - the refrigeration cabinet of the showcase. Parts (elements) of the device are in a constructive unity and a single functional relationship, and their joint use leads to the creation of a new device that allows you to achieve a new technical result.

This technical solution is industrially applicable in the field of refrigeration trade equipment and is applicable as a device for cooling and displaying food. The application and use of the claimed device does not cause any difficulties and can be carried out by ordinary buyers. In the implementation of the technical solution, devices, devices and materials produced by the industry and which are in the public domain are used. Methods for the implementation of the utility model are methods of mechanical processing of structural materials and installation. The means of implementation are mechanical means, machine tools and hand tools for machining. The above set of essential features of the claimed utility model and their disclosure allows us to make a conclusion about the implementation of the purpose of the utility model. Indeed, the implementation of the entire set of essential features set forth in the formula leads to the implementation of the purpose of the utility model, namely, to the implementation of a collapsible refrigerating chamber for a display cabinet.

Thus, we can conclude that the implementation of the full set of essential features of the claimed technical solution allows you to obtain a new technical result, which indicates the constructive and functional unity of the technical solution, which does not contain alternative essential features, as well as alternative sets of essential features.

The claimed utility model has a number of useful properties, in particular, the possibility of increasing the volume of refrigerated products by performing horizontal scaling of assembly units, increasing maintainability, reducing the labor intensity of installation and labor costs for the production of components, reducing labor costs for maintenance, as well as the possibility of increasing the storage time of products.

Under labor costs and labor intensity, we mean here the time spent, respectively, on the task and individual operations. Reducing the range of products, unifying components, reducing labor intensity, interchangeability of structural elements, maintainability - these are characteristics that are a consequence of structural, i.e. technical changes to the device and its constituent elements. In addition, the reduction of technical operations - the production of structural elements, installation, repair, maintenance, are technical operations and hence the reduction in their execution time also refers to the technical characteristics.

Distinguishing from the prototype, essential features of the claimed utility model and their characteristics are:

- location of the refrigeration unit on top of the refrigeration chamber,

- location of the evaporator and fans in a thermal insulation jacket,

- the presence in the mounting panel, as well as in the top panel, of coordinated through holes for convection air exchange with the volume of the refrigerating chamber,

- the presence of racks for attaching walls and panels,

- the presence of brackets fixed on the racks for the arrangement of shelves with varying dimensions along the width of the display cabinet,

- unified dimensions of the top and bottom panels, as well as side walls

- the ability to scale to the width of the top panel display cabinet with a refrigeration unit,

- execution of the rear wall of the display cabinet in horizontal rows with a set of unified panels and the ability to scale it along the width of the entire cabinet,

- execution of the front wall with horizontally arranged rows of blocks, of which all blocks of the upper row include transparent material and have the function of block-by-block admission to the inner space of the refrigerating chamber, and in all blocks of the lower rows there is no function of admission to the inner space of the refrigerating chamber.

These essential features are distinctive from the prototype, since each of them is not contained in the set of essential features of the prototype, i.e. is not present in the list of features implemented in the prototype and is not their characteristic.

As already shown above, these essential features, which are distinct from the prototype, including their characteristics, ensure the achievement of the claimed technical result when using other essential features of the utility model specified in the description.

Thus, it is shown that the set of essential features of the claimed utility model, which makes it possible to achieve the claimed technical result, differs from the set of essential features of analogues, prototype, as well as other known data sources, i.e. the application of this set of essential features is not known to obtain the claimed technical result. In other words, the claimed utility model is not known from the prior art.

An increase in the efficiency of the claimed technical result is achieved in the following modifications of the method, which characterize particular cases of its implementation:

1. Declared and described above cabinet-display cabinet, characterized in that the mounting panel has reinforcing structural elements located on the surface of the panel.

2. The declared and described above cabinet-display cabinet, characterized in that the mounting panel has reinforcing structural elements located inside the panel.

3. The declared and described above display cabinet, characterized in that the mounting panel has mounting holes for mounting refrigeration equipment.

4. The declared and described above cabinet-display cabinet, characterized in that the through holes for convection air exchange have a reinforcing edging.

5. The declared and described above cabinet-display cabinet, characterized in that the extreme racks of the refrigerating chamber contain two horizontal traverses, one of which is located at the upper point of the rack, and the other at the bottom.

6. The declared and described above cabinet-display cabinet, characterized in that the central pillars of the refrigerating chamber contain one horizontal traverse, which is located at the upper point of the rack.

7. The declared and described above cabinet-display cabinet, characterized in that the racks are made of a solid structural material, for example, steel, aluminum alloy, polyurethane, polypropylene, polystyrene.

8. The declared and described above cabinet-display cabinet, characterized in that the racks are made of a structural perforated profile.

9. The declared and described above cabinet-display cabinet, characterized in that the fastening of the walls and panels to the uprights is performed using threaded rivets.

10. The declared and described above cabinet-display cabinet, characterized in that the side walls, the rear wall and the bottom panel have structural reinforcement elements.

11. Declared and described above cabinet-display cabinet, characterized in that the side walls, back wall, top panel and bottom panel contain a layer of foamed thermal insulation material throughout the working space.

12. Declared and described above cabinet-display cabinet, characterized in that the back wall is made in two horizontal rows.

13. The declared and described above cabinet-display cabinet, characterized in that the brackets fixed on the racks for the arrangement of the shelves are made in rows at the same level vertically.

14. The declared and described above cabinet-display cabinet, characterized in that the brackets fixed on the racks for the arrangement of the shelves are made in rows at different levels vertically.

15. The declared and described above cabinet-display cabinet, characterized in that the blocks of the upper horizontal row, including transparent material, with the function of block-by-block admission into the inner space of the refrigerating chamber, are made in the form of a door.

16. The declared and described above cabinet-showcase, characterized in that the blocks of one of the lower horizontal rows, with no function of block-by-block access to the inner space of the refrigerating chamber, are made with the inclusion of a transparent insert.

17. Declared and described above cabinet-showcase, characterized in that the blocks of one of the lower horizontal rows, with no function of block access to the inner space of the refrigerating chamber, are made in an opaque design.

The description of the claimed utility model is illustrated in figures 1-4.

FIG. 1 - General view of the display cabinet.

FIG. 2 - Scheme of linear scaling of the display cabinet in width.

FIG. 3 - Display cabinet, consisting of 3 assembly units.

FIG. 4 - Refrigeration unit on the mounting panel.

These figures show the following designations:

1. Display cabinet

2. Refrigeration unit

3. Compressor

4. Capacitor

5. Evaporator

6. Fans

7. Mounting (top) panel

8. Refrigerator

9. Thermal insulation jacket

10. Holes for convection exchange

11. Side wall

12. Bottom panel (bottom)

13. Back wall

14. Unified rear wall panel

15. Front wall, top row unit with doors

16. Front wall, blocks of the lower row without the function of access to the inner space of the refrigerating chamber

17. Transparent material of the front wall (unit with doors)

18. Shelves

19. Rack

20. Bracket

21. Traverse

Collapsible refrigerated display case with convection cooling 1 is carried out as follows.

The display cabinet consists of a refrigeration unit 2 and a refrigeration chamber 8. The refrigeration unit includes a compressor 3, a condenser 4, an evaporator 5 and fans 6, which are located on a single mounting panel 7, which is also the upper panel of the refrigeration chamber. The evaporator and fans are located on one side of the mounting panel and are enclosed in a thermal insulating casing 9. To ensure the convection exchange of the evaporator space under the thermal insulating casing and the refrigerating chamber, two through holes are made on the mounting plate under the casing 10. The refrigerating chamber is made of side walls 11, the bottom panel or the bottom 12, as well as the rear wall 13. In turn, the rear wall is made by a set of unified panels 14 arranged in horizontal rows. These panels and walls are designed into a refrigerating chamber by joining (fixing) on racks 19 containing perforations. To carry out the fastening of the lower and upper panels, as well as the side walls, the posts contain horizontal traverses 21, and the extreme posts contain two traverses, from the bottom and from the top of the post, and the central posts contain only one upper traverse. Fastening of the walls and panels is carried out using fasteners, mainly threaded rivets. Brackets 20 are fixed on the perforations of the racks, on which the shelves are located. The shelves and brackets are predominantly arranged in rows. The brackets are positioned along the width of the cabinet, normally to the back wall, their size is always less than the inner width of the cabinet and differs from row to row.

The front wall of the refrigerating chamber is horizontally arranged rows of blocks, of which all blocks of the upper row 15 include transparent material, with a block-by-block admission function to the inner space of the refrigerating chamber, and in all blocks of the lower rows 16 there is no function of admission to the inner space of the refrigerating chamber. The front wall is made in horizontal rows of blocks, preferably in 3 rows. The blocks of the upper row are made in the form of opening doors, which allows customers to access products in the inner space of the cabinet. At the same time, the blocks of the lower rows are made without the function of admitting buyers into the inner space of the cabinet and, mainly, are multilayer transparent and opaque block-panels of a flat or convex shape containing thermal protection. The function of preventing customers from entering the inner space of the cabinet is achieved by attaching these blocks to the cabinet structure using fasteners and connections. The presence of rows of blocks without the function of admitting customers into the inner space of the cabinet allows you to organize a compartment for storing food behind such blocks. This is especially appropriate for the case of a row of blocks located at the bottom. In this case, a space with a colder zone is formed, the temperature in which can be 3-10 ° C lower than the average temperature in the refrigerating chamber. In this zone, convection heat gains are significantly reduced when the doors are opened, and, therefore, energy consumption for maintaining the temperature is reduced. This space acts as a cold accumulator, which makes it possible to quickly restore the temperature of the display cabinet after closing the doors.

The transparent material is mainly a transparent panel, and can also be a package of transparent panels embedded in the door unit. Inside the refrigerating chamber, shelves 18 are arranged in rows for storing food, which are supported by brackets attached to the racks. The described design of the display cabinet is an assembly unit that can be scaled horizontally along the line in accordance with the production need. The scaling factor is determined by production needs and is limited by the size of the room.

Example 1.

To make a refrigerated display cabinet with convection cooling, two end racks with perforations were fixed on the bottom panel, containing the lower and upper horizontal traverses directed along the location of the lateral sides. Then the legs with adjustable height were mounted on the outside, and the rear wall of two horizontal panels, the side walls and, finally, the top panel were fixed to the posts using threaded rivets. A mounting plate with a refrigeration unit attached to it was installed on top of the structure assembled in this way. The refrigeration unit includes a compressor, condenser, evaporator and fans. In this case, the evaporator and fans are located on one side of the mounting panel and are enclosed in a heat-insulating casing. To ensure convection exchange in the evaporator space under the thermal insulation casing and in the refrigerating chamber, two through holes are made on the mounting plate under the casing. Inside the refrigerating chamber, brackets were fixed in perforations in 4 vertical rows on racks, and wire shelves were placed on them. To provide access to the products, the brackets of the middle 2 rows were shorter than the upper brackets by 80 mm. The lower row brackets were shorter, the upper brackets by 160 mm. After that, a block with doors was fixed on the front side of the cabinet, and under it was an opaque block in the form of a panel. In this case, the block with doors contained a frame and transparent glass units, limited by a technological edging and mounted on the frame using hinges, and the opaque panel contained thermal insulation material and was attached to the structure using fasteners. Side panels, top and bottom panels contain

thermal insulation layer made of polyurethane foam. The posts and traverses are made of 40 × 60 × 4 steel rectangular profile with perforations. The shelves are made of steel wire with anti-corrosion coating. After connecting the cabinet to the mains, it was loaded with food. The products of the four upper shelves were filled with products for customer selection, while the lower space behind the opaque panel was filled with products for long-term storage. Products from these shelves are intended for quick replenishment of products on the upper shelves.

The dimensions of the display cabinet were 2500 mm, the volume was 1800 liters, the average temperature inside the loaded display cabinet was -16 ° C, the temperature in the compartment for long-term storage of products was -20 ° C, the power consumption was 50 kW / day. Ambient temperature + 25 ° С, relative humidity 60%.

Example 2.

To make a refrigerated display cabinet with convection cooling, three lower panels were laid out in a row on a plane, pre-mounted on these panels, legs with adjustable height and gluing the connecting surfaces of the panels with foam tape. Then, along the edges of each panel, 2 end posts with perforations were fixed, containing the lower and upper traverses. Next, the racks installed on adjacent panels were pulled together using a screw connection, eliminating the gaps between the lower panels. After that, the back wall was mounted in horizontal rows, from unified panels, along its entire length, by attaching the panels to the racks. Then additional posts were attached to the rear panels with one horizontal traverse at the top point. All posts and panels were connected using threaded rivets.

On the structure assembled in this way, three mounting plates were installed from above, mirror-like to the lower panels, with fixed on each refrigeration unit. Each refrigeration unit includes a compressor, condenser, evaporator and fans. In this case, the evaporator and fans are located on one side of the mounting panel and are enclosed in a heat-insulating casing. To ensure convection exchange in the evaporator space under each heat-insulating casing and in the refrigerating chamber, two through holes are made on the mounting plate under the casing. To provide access to the products, the brackets of the middle 2 rows were shorter than the upper brackets by 80 mm. The lower row brackets were 160 mm shorter than the upper brackets.

After that, from the front side of the cabinet, opaque blocks in the form of panels and a frame with doors were fixed in two horizontal rows. Thus, three frames with doors were fixed on top, and under them, respectively, under each upper block, three opaque panels were fixed in a row. In this case, each door contained a transparent glass unit in the entire width and height of the door, limited by the technological edging and was mounted on the frame using hinges, and the opaque panel contained thermal insulation material and was attached to the structure using fasteners. Side walls, top and bottom panels contain a polypropylene foam insulation layer. The posts and traverses are made of 40 × 60 × 4 steel rectangular profile with perforations. The shelves are made of steel wire with anti-corrosion coating. After connecting the cabinet to the mains, it was loaded with food. The products of the four upper shelves were filled with products for customer selection, and the lower space behind the opaque panel was filled with products for long-term storage. Products from the lower volume on these shelves are intended for quick replenishment of products on the upper shelves.

The dimensions of the display cabinet were 3 × 1875 = 5625 mm, the volume was 3 × 1500 = 4500 l, the average temperature inside the loaded display cabinet was -16 ° С, the temperature in the long-term storage compartment was -20 ° С, the power consumption was 3 × 32 = 96 kW / day. Ambient temperature + 25 ° С, relative humidity 60%.

Example 3.

To make a refrigerated display cabinet with convection cooling, the display cabinet was first assembled according to example 1, but without the right wall and the block with the door. Similarly, assembly units were assembled without both walls in the amount of 5. Then they connected all the assembly units in one row and put the right wall. After that, the front wall blocks and the door frame were fixed in two rows, with each door containing a transparent glass unit, limited by a technological edging. The bottom row was made of opaque thermal insulation panels fixed to the cabinet structure with fasteners. The assembled structure contained 12 refrigeration units.

The side walls, top and bottom panels contained a thermal insulating layer of polyethylene foam and contained strength enhancers - embedded elements from a steel bent profile. Racks and traverses are made of steel rectangular profile 40 × 60 × 2.5 with perforations.

The dimensions of the display cabinet were 6 × 1875 = 11250 mm, the volume was 6 × 1500 = 9000 liters, the average temperature inside the loaded display cabinet was -16 ° С, the temperature in the long-term storage compartment was -20 ° С, the power consumption was 6 × 32 = 192 kW / day Ambient temperature + 25 ° С, relative humidity 60%.

Example 4.

As a result of an accident in a display cabinet of 5 assembly units, the rear wall of two unified panels and the upper mounting panel of the middle assembly unit became unusable. The internal volume of the middle assembly unit was isolated with temporary partitions from the internal volume of other assembly units. Without disassembling the cabinet, we detached two panels of the back wall and replaced them with new ones. Then they disconnected the refrigeration unit from the mains, located on the damaged mounting plate, disconnected the plate from the fastening horizontal traverses and removed it together with the equipment installed on it. After that, a new mounting plate with a new refrigeration unit placed on it was installed on the staging area of the damaged plate.

Example 5.

To make a refrigerated display cabinet with convection cooling, three display cabinets were first assembled according to example 1, but without side walls and a unit with a door. Then they connected all the assembly units in one row. Between the 2nd and 3rd cabinets, a divider of the internal volume made of plexiglass was placed. After that they put the left and right walls. The assembled structure contained 6 refrigeration units. After that, the door frame is fixed from the front side of the cabinet and the doors are attached with the help of special hinges from the front side of the cabinet, while the door contains a transparent glass unit, limited by a technological edging. The side walls, top and bottom panels contained a heat-insulating layer of polyurethane foam and contained strength enhancers - embedded elements from a steel bent profile. Racks and traverses are made of steel rectangular profile 40 × 60 × 2.5 with perforations.

Example 6.

To make a refrigerated display cabinet with convection cooling, two end racks with perforations were fixed on the bottom panel, containing the lower and upper horizontal traverses directed along the location of the lateral sides. Then the legs with adjustable height were mounted on the outside, and the rear wall of two horizontal panels, the side walls and, finally, the top panel were fixed to the posts using threaded rivets. A mounting plate with a refrigeration unit attached to it was installed on top of the structure assembled in this way. The refrigeration unit includes a compressor, condenser, evaporator and fans. In this case, the evaporator and fans are located on one side of the mounting panel and are enclosed in a heat-insulating casing. To ensure convection exchange in the evaporator space, two through holes are made on the mounting panel under the heat-insulating casing on the mounting panel. In the top panel, one hole is made to match the holes in the mounting panel and provide unhindered air access to the holes in the mounting panel. Inside the refrigerating chamber, brackets were fixed in perforations in 4 vertical rows on racks, and wire shelves were placed on them. To provide access to the products, the brackets of the middle 2 rows were shorter than the upper brackets by 80 mm. The lower row brackets were 160 mm shorter than the upper brackets. After that, a block with a door was fixed on the front side of the cabinet, and under it was an opaque block in the form of a panel. At the same time, the block with the door contained a frame and transparent glass units, limited by a technological edging and mounted on the frame using hinges, and the opaque panel contained thermal insulation material and was attached to the structure using fasteners. The side walls, top and bottom panels contain a polyurethane foam thermal insulation layer. The posts and traverses are made of 40 × 60 × 4 steel rectangular profile with perforations. The shelves are made of steel wire with anti-corrosion coating. After connecting the cabinet to the mains, it was loaded with food. The products of the four upper shelves were filled with products for customer selection, while the lower space behind the opaque panel was filled with products for long-term storage. Products from these shelves are intended for quick replenishment of products on the upper shelves.

Example 7.

To make a refrigerated display cabinet with convection cooling, the display cabinet was first assembled according to example 1, but without the right wall and the block with the door. Likewise, 11 assembly units were assembled without both walls. Then they connected all the assembly units in one row and put the right wall. After that, a block with doors was fixed on the front side of the cabinet, and under it was an opaque block in the form of a panel. After that, the front wall blocks and the door frame were fixed in two rows, with each door containing a transparent glass unit, limited by a technological edging. The bottom row was made of opaque thermal insulation panels fixed to the cabinet structure with fasteners. The assembled structure contained 24 refrigeration units.

The side walls, top and bottom panels contained an insulating layer of polyethylene foam and strength reinforcements - embedded elements from a steel bent profile. Racks and traverses are made of steel rectangular profile 40 × 60 × 2.5 with perforations. (Materials are listed as possible)

The dimensions of the display cabinet were 12 × 1875 = 22500 mm, the volume was 12 × 1500 = 18000 liters, the average temperature inside the loaded display cabinet was -16 ° С, the temperature in the long-term storage compartment was -20 ° С, the power consumption was 12 × 32 = 384 kW / day. Ambient temperature + 25 ° С, relative humidity 60%.

Example 8.

To make a refrigerated display cabinet with convection cooling, a display cabinet was first assembled according to example 1. After that, from the front side of the cabinet, a row of blocks with doors was fixed in three rows, below a row of blocks with transparent glass units and under it a row of blocks of opaque thermal insulation panels. At the same time, the block with doors contained a frame and transparent glass units, limited by a technological edging and mounted on the frame using hinges, the opaque panel contained thermal insulation material and was attached to the structure using fasteners. The double-glazed windows of the middle row were installed in a frame made of plastic profiles. The assembled structure contained 2 refrigeration units. The side walls, top and bottom panels contain a polyurethane foam thermal insulation layer. The posts and traverses are made of 40 × 60 × 4 steel rectangular profile with perforations. The shelves are made of steel wire with anti-corrosion coating. After connecting the cabinet to the mains, it was loaded with food. The products of the four upper shelves were filled with products for customer selection, while the lower space behind the opaque panel was filled with products for long-term storage. Products from these shelves are intended for quick replenishment of products on the upper shelves.

The dimensions of the display cabinet were 1875 mm, the volume was 1500 liters, the average temperature inside the loaded display cabinet was -16 ° C, the temperature in the compartment for long-term storage of products was -20 ° C, the power consumption was 32 kW / day. Ambient temperature + 25 ° С, relative humidity 60%.

The above examples of examples should not be considered as limiting the scope of the utility model. On the contrary, variants, modifications and equivalents of the described examples are also possible within the scope of the rights set forth in the claims of the utility model.

The above description of the implementation of the utility model and examples of its implementation confirm the achievement of the claimed technical result in the process of implementing the utility model. They also show the causal relationship of essential features between themselves and the achieved technical result.

It also follows from the above description that the achievement of the technical result is possible only with the implementation of the entire set of essential features, which is also confirmed by the technical solution to the problem of implementing the utility model.

Claims (18)

1. Collapsible refrigeration display cabinet with convection cooling, containing at least one refrigeration unit, including a compressor, condenser, evaporator, as well as fan (s) and at least one refrigeration chamber, which includes side walls , back and front walls, top and bottom panels made of thermal insulation materials, as well as shelves, characterized in that the refrigeration unit is mounted on a single flat mounting panel, which is located on top of the refrigeration chamber on its upper panel, the evaporator and fan (s) are enclosed into a heat-insulating casing, and a part of the mounting panel enclosed in this casing, as well as the upper panel of the refrigerating chamber have through holes matched in size and location for the implementation of forced convection exchange along the closed volume of the cabinet, the refrigerating chamber contains racks for fixing the walls and panels, and brackets for placement of shelves, while the dimensions of the bottom and top panels, as well as side walls, respectively, are unified, the bottom and top panels, as well as the refrigeration unit are scalable along the length of the display cabinet, the back wall is made in horizontal rows by a set of unified panels and is scalable along the length of the display cabinet, the front wall is made in horizontally arranged rows of blocks , of which all blocks of the upper row include transparent material and have the function of block-by-block admission to the inner space of the refrigerating chamber, and in all blocks of the lower rows there is no function of admission to the inner space of the refrigerating chamber, there is also the possibility of scaling by a set of coordinatedly arranged blocks of the indicated rows of the front wall in width display cabinet; at the same time, the size of the brackets along the width of the display cabinet differs at different vertical levels. 2. A collapsible refrigerated display cabinet according to claim 1, characterized in that the mounting panel has reinforcing structural elements located along the surface of the panel. 3. A collapsible refrigerated display cabinet according to claim 1, characterized in that the mounting panel has reinforcing structural elements located inside the panel. 4. Collapsible refrigerated display cabinet according to claim 1, characterized in that the mounting panel has mounting holes for mounting refrigeration equipment. 5. The collapsible refrigerated display case according to claim 1, characterized in that the through holes for convection air exchange have a reinforcing edging. 6. Collapsible refrigerated display cabinet according to claim 1, characterized in that the extreme racks of the refrigerating chamber contain two horizontal traverses, one of which is located at the top of the rack, and the other at the bottom. 7. Collapsible refrigerated display cabinet according to claim 1, characterized in that the central pillars of the refrigerating chamber contain one horizontal traverse, which is located at the upper point of the rack. 8. The collapsible refrigerated display case according to claim 1, characterized in that the racks are made of a solid structural material, for example, steel, aluminum alloy, polyurethane, polypropylene, polystyrene. 9. Collapsible refrigerated display case according to claim 1, characterized in that the racks are made of a structural perforated profile. 10. Collapsible refrigerated display cabinet according to claim 1, characterized in that the walls and panels are fastened to the racks using threaded rivets. 11. A collapsible refrigerated display cabinet according to claim 1, characterized in that the side walls, the rear wall and the bottom panel have structural reinforcement elements. 12. A collapsible refrigerated display cabinet according to claim 1, characterized in that the side walls, the rear wall, the top panel and the bottom panel contain a layer of foamed heat-insulating material throughout the working space. 13. Collapsible refrigerated display case according to claim 1, characterized in that the rear wall is made in two horizontal rows. 14. Collapsible refrigerated display cabinet according to claim 1, characterized in that the brackets fixed on the racks for the arrangement of the shelves are made in rows at the same level vertically. 15. The collapsible refrigerated display case according to claim 1, characterized in that the brackets fixed on the racks for the arrangement of the shelves are made in rows at different levels vertically. 16. Collapsible refrigerated display cabinet according to claim 1, characterized in that the blocks of the upper horizontal row, including transparent material, with the function of block-by-block admission into the inner space of the refrigerating chamber, are made in the form of a door. 17. Collapsible refrigerated display case according to claim 1, characterized in that the blocks of one of the lower horizontal rows, with no function of block access to the inner space of the refrigerating chamber, are made with the inclusion of a transparent insert. 18. Collapsible refrigerated display cabinet according to claim 1, characterized in that the blocks of one of the lower horizontal rows, with no function of block-by-block access to the inner space of the refrigerating chamber, are made in an opaque design.

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