Combined display cabinet freezer

Abstract

The utility model discloses a combined type display cabinet freezer which comprises a freezer body and a first refrigerating device, and a plurality of display show windows are distributed on the two side walls of the freezer body in the length direction of the freezer body. The second refrigerating device is used for refrigerating so as to quickly cool the show window, the cold storage device is used for interactively matching with the first refrigerating device in cooling capacity, the cold storage device comprises a cold storage pipe group, and the cabinet body is provided with a cavity for accommodating the cold storage pipe group; and the cold storage pipe group is filled with cold storage liquid which is used for reducing the temperature of the show window and storing cold after cold interaction with the cold storage device. The utility model solves the problems that the traditional integrated freezing display cabinet in supermarkets and supermarkets is overlarge in energy consumption, poor in thermal insulation performance, overhigh in electricity consumption and difficult to control the electricity consumption cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to frozen display cabinet technical field, concretely is a combined display freezer. BACKGROUND

[0002] Traditional supermarkets adopt several independent display freezers to display refrigerated goods, such as fresh food, food, etc., each independent freezer has an independent refrigeration device, and the display freezer is cooled to the temperature range suitable for storing refrigerated goods through the refrigeration device. When multiple display freezers are running synchronously, their energy consumption increases sharply, which increases the electricity consumption of supermarkets and significantly increases operating costs. When consumers take goods from the display freezer, they will frequently open and close the door, which will cause the cold air in the display freezer to be easily blown out. The built-in refrigeration system is difficult to supplement the cold air in time or the cold air supplement efficiency is low, which causes some goods to be affected by temperature imbalance and not in the appropriate temperature range, resulting in bacterial growth or damage to goods. The placement of several independent display freezers also affects the space of the supermarket, which further reduces the operating space of the supermarket and the operating efficiency of the supermarket in the limited space.

[0003] The prior art discloses a post-supplement type cold storage structure with application number 202222091045.7, which relates to the technical field of cold storage, and also has a refrigeration area and a display area. This patent mainly focuses on the optimization of the heat preservation function of the cold storage and the integrated design of the storage cold storage and the display cabinet. By combining the refrigeration area and the display area, the operating space occupied by multiple display cabinets is reduced. By setting multiple isolation doors and movable isolation channels in the refrigeration area and the display area, the loss of cold air during goods taking or replenishing is reduced. The structure is relatively simple. This patent mainly solves the problem of local heat preservation during goods taking or replenishing. Although it reduces the loss of cold air to some extent, it does not consider the overall energy consumption caused by the operation of the refrigeration equipment, and the energy-saving effect is limited to the inside of the cold storage. At the same time, the cold air released by the refrigeration equipment in the above-mentioned technology can only reach the refrigeration range, and cannot reach the freezing range, so it cannot store frozen goods.

[0004] Based on the above, the prior art also discloses a combined cabinet with display and freezing function, which discloses a cabinet with independent freezing chamber and display chamber, and realizes cold exchange through the cold storage heat exchanger and the freezing heat exchanger. Although the patent integrates the freezing and display functions and saves resources to a certain extent by sharing the refrigeration source, it does not consider optimizing the refrigeration device to adapt to the difference in electricity cost at different times, that is, the freezing chamber and the display chamber share one compressor, and the refrigeration efficiency cannot reach the best state under different use requirements. For example, when the freezing chamber needs to quickly cool a large number of goods, the refrigeration system cannot quickly cool, which affects the temperature stability of the display chamber, or in order to meet the temperature requirements of the two chambers, the compressor needs to operate frequently, thereby increasing energy consumption. Content of the utility model

[0005] In view of the defects of the prior art, the utility model provides a combined display freezing cabinet to solve the problems of large energy consumption, poor heat preservation performance, high electricity consumption and difficult control of electricity cost in the traditional supermarket integrated freezing display cabinet.

[0006] To achieve the above purpose, the utility model provides a combined display freezing cabinet, which comprises a cabinet body and a first refrigeration device, the two side walls of the cabinet body are provided with a plurality of display windows along the length direction of the cabinet body, and further comprises a second refrigeration device for refrigeration to quickly cool the display window and a cold storage device for cold exchange with the first refrigeration device, the cold storage device comprises a cold storage pipe group, the cabinet body has a chamber for accommodating the cold storage pipe group, and the cold storage pipe group is filled with cold storage liquid for reducing the temperature of the display window and storing cold after cold exchange with the cold storage device.

[0007] The above technical scheme has the advantages that: when the combined display freezer is opened, the second refrigerating device works first, uses its rapid refrigeration characteristics to rapidly cool the cabinet body, quickly reaches a relatively low temperature range, and lays a foundation for subsequent refrigeration and display work. With the preliminary reduction of the cabinet body temperature, the first refrigerating device starts to work, and the cold quantity generated by the first refrigerating device and the cold storage device interact, that is, the cold quantity is conducted to the cold storage device to make the cold storage liquid in the cold storage tube group absorb the cold quantity. When the cabinet body temperature reaches the set requirement and is relatively stable, the second refrigerating device can be temporarily suspended. If the temperature requirement or business requirement makes the first refrigerating device also temporarily not work, the cold storage liquid storing cold quantity in the cold storage device starts to release cold quantity, continues to maintain the low temperature of the cabinet body and the display window, and ensures the constant temperature in the display freezer. That is, during the peak electricity period in the daytime, the cold quantity stored in the cold storage device is preferentially used to maintain the low temperature in the cabinet body. The display windows are all communicated with the cabinet body, and the low temperature of the display windows is maintained, so as to reduce the electricity cost in the peak electricity period. If the cold quantity released by the cold storage device is insufficient to maintain the temperature, the first refrigerating device is started in time, so as to accelerate the cold quantity interaction between the first refrigerating device and the cold storage liquid, so that the cold storage liquid in the cold storage tube group can release cold quantity to reduce the temperature in the cabinet body. The cold quantity supply in the cabinet body is realized by the cold quantity released by the cold storage device, so as to reduce the dependence on high-cost electricity. In the above technology, the cold quantity is released to maintain the low temperature environment of the display window during the peak electricity period, high-efficiency cold quantity management is realized, the overall electricity cost is effectively reduced, the temperature of the display window can be accurately controlled by the cooperation of the first refrigerating device and the cold storage device, and the temperature of the display window can be always maintained in the low temperature environment suitable for storing frozen goods. In the above technology, the second refrigerating device is arranged to rapidly cool the cabinet body, greatly shortens the time to reach the suitable temperature, improves the overall refrigeration efficiency, and cooperates with the first refrigerating device to rapidly and stably create a low temperature environment suitable for frozen display. Compared with the traditional display equipment, the temperature fluctuation is smaller, the growth of bacteria and the activity of microorganisms can be effectively inhibited, the shelf life of frozen goods is prolonged, the loss of goods is reduced, the quality of goods is ensured, and economic losses caused by deterioration of goods are reduced.

[0008] The integrated design of the combined display freezer cabinet in the above-mentioned technology can more effectively utilize site space compared to the layout of traditional multiple independent display cabinets or the layout of large integrated display cabinets and cold stores under the same display and storage function requirement, significantly reduces site rental cost, and the advantage is more prominent for small supermarkets, which helps to improve the operating efficiency in limited space, and the reduction of energy consumption directly translates into the reduction of electricity cost, and the efficient restocking design, such as the display window arranged on the two side walls of the cabinet body, makes the restocking operation more convenient and fast, reduces the labor time and labor intensity required for restocking, which not only reduces the labor cost, but also improves the restocking efficiency, further optimizes the overall operating cost structure;The combined display freezer cabinet has high flexibility and expandability in structure and function design.

[0009] The first refrigeration device comprises a compressor, a first condenser and a heat exchanger, the compressor is arranged in linkage with the first condenser, the first condenser is arranged in linkage with the heat exchanger, the cold storage device further comprises a liquid tank storing cold storage liquid, a circulating pipeline for connecting the liquid tank and the cold storage pipe group and a circulating pump for communicating with the circulating pipeline to make the cold storage liquid circulate, and the liquid tank is arranged in linkage with the heat exchanger.

[0010] The above technical solution has the advantages that: the compressor and the first condenser are connected by a liquid conveying pipeline for conveying high-temperature and high-pressure refrigerant gas discharged by the compressor to the first condenser for heat dissipation and liquefaction; the first condenser and the heat exchanger are connected by a flow pipeline for flowing the refrigerant liquefied by the first condenser into the heat exchanger under the action of a pressure difference and enabling the liquefied refrigerant to exchange cold energy with the cold storage liquid; the liquid tank and the heat exchanger are connected by a conveying pipeline for conveying the cold storage liquid in the liquid tank to the heat exchanger; the heat exchanger is provided with a first interaction pipeline for the flow of the cold storage liquid to exchange cold energy with the refrigerant and a second interaction pipeline for the flow of the refrigerant to exchange cold energy with the cold storage liquid; when the temperature sensor in the cabinet detects that the temperature of the chamber or the display showcase is higher than the set threshold value, the first refrigeration device is started, the compressor starts to work, the low-temperature and low-pressure gaseous refrigerant is sucked in, the compressor compresses the sucked gaseous refrigerant, the gaseous refrigerant is converted into high-temperature and high-pressure gaseous refrigerant by work, the high-temperature and high-pressure gaseous refrigerant compressed by the compressor is conveyed to the first condenser through the liquid conveying pipeline, in the first condenser, the high-temperature and high-pressure gaseous refrigerant exchanges heat with the cooling water, because the temperature of the cooling water is relatively low, the refrigerant transfers heat to the cooling water and gradually cools and liquefies, the cooling water in the first condenser continuously circulates to take away the heat of the refrigerant, so that the refrigerant is converted into high-temperature and high-pressure liquid refrigerant in this process, and then the high-temperature and high-pressure liquid refrigerant is processed by the expansion valve in the first condenser to convert the high-temperature and high-pressure liquid refrigerant into low-temperature and low-pressure liquid refrigerant, the low-temperature and low-pressure liquid refrigerant flows into the heat exchanger through the flow pipeline under the action of the pressure difference, in the heat exchanger, the low-temperature and low-pressure liquid refrigerant exchanges cold energy with the cold storage liquid. Because the temperature of the refrigerant is lower than that of the cold storage liquid, the refrigerant absorbs the heat emitted by the cold storage liquid, at this time, the cold storage liquid gradually cools down until it reaches the freezing temperature, the cold storage liquid in the heat exchanger is conveyed to the cold storage pipeline group, and the circulating pump returns the cold storage liquid in the cold storage pipeline group that has been warmed to the liquid tank, so that the liquid tank can convey the cold storage liquid to the heat exchanger through the circulating pipeline for cold energy exchange in the subsequent process, and the low-temperature and low-pressure gaseous refrigerant is converted into low-temperature and low-pressure gaseous refrigerant after the cold energy exchange in the heat exchanger and is returned to the compressor for subsequent circulation; during the peak electricity period in the daytime, the cold energy stored in the cold storage device can be used to maintain the low temperature of the display showcase according to the preset program, the circulating pump is used to accelerate the circulation of the cold storage liquid, the cold storage pipeline group releases cold energy, the running time of the compressor and the water chiller is reduced, and the electricity cost during the peak electricity period is reduced. At the same time, if the cold energy released by the cold storage device is not enough to maintain the temperature, the compressor is started in time to supplement the refrigeration.

[0011] The cooperation of each component of the refrigeration device in the above technology can accurately control the state and temperature of the refrigerant through the cooperation of the compressor, the first condenser and the heat exchanger, so as to realize efficient refrigeration. The compressor provides power to circulate the refrigerant in the system, the first condenser effectively dissipates heat to liquefy the refrigerant, and the heat exchanger is used for the refrigerant and the cold storage liquid to enter and exchange cold energy, so that the refrigerant evaporates to absorb heat and the temperature of the cold storage liquid is reduced. The communication design of the heat exchanger and the cold storage pipe group further optimizes the distribution and utilization of cold energy, so that the refrigeration device can flexibly adjust the cold energy output according to the actual demand, improves the refrigeration efficiency, reduces the energy waste, and the liquid tank, the circulating pump and the cold storage pipe group in the cold storage device can stably store and transport the cold storage liquid. When the refrigeration device refrigerates, the cold storage liquid waits for cold energy exchange in the heat exchanger, and the exchanged cold storage liquid is transported to the cold storage pipe group for circulation to absorb and store cold energy. When the refrigeration capacity of the refrigeration device is reduced or in the peak electricity period, the cold storage device can continuously release cold energy to maintain the low-temperature environment of the display window and ensure the quality of frozen goods, realize the "peak load shifting" of cold energy, and improve the reliability and stability of the whole system. The controller group controls the water chiller, so that the refrigeration device can flexibly adjust the refrigeration parameters and operation mode according to different environmental conditions, time setting and load demand. For example, in the low load period or at night, the refrigeration power can be appropriately reduced to realize energy-saving operation. At the same time, the cold storage device releases cold energy in the peak electricity period, effectively utilizes the price difference of electricity and reduces the electricity cost.

[0012] The first refrigeration device in the above technology is a prior art, which can select a corresponding refrigeration device according to the actual operation demand, such as a steam absorption refrigeration device, an air-cooled device, a water-cooled device, etc. The traditional refrigeration device comprises a controller assembly for starting and stopping the corresponding components. The controller assembly can comprise a temperature relay, a pressure relay and other two-position regulators, and various regulating valves. The controller itself can adopt a programmable controller or an intelligent controller. Since it is a prior art, the structure and function will not be described in detail.

[0013] The utility model further sets up: the second refrigeration device includes second condenser and sets up in the cold fan of chamber.

[0014] The beneficial effects of the above technical scheme are: the second condenser further comprises fins and heat exchange tubes, when the combined display freezer starts the rapid cooling mode, the second refrigerating device is started, the air cooler first starts to work, the air cooler generates forced air flow, promotes the air flow in the chamber, and makes the air flow through the heat exchange tubes provided with fins, in the second condenser, the low-temperature refrigerant flows in the heat exchange tubes, as the air is driven by the air cooler to flow through the fins and the heat exchange tubes, the air exchanges heat with the refrigerant in the heat exchange tubes, as the temperature of the refrigerant is lower than that of the air in the chamber, the heat of the air is transferred to the refrigerant, so that the temperature of the air is reduced, the low-temperature air cooled by heat exchange is guided to the internal space of the cabinet, the low-temperature air flows in the internal space of the cabinet, mixes with the hot air in the internal space of the cabinet, and exchanges heat, so as to take away the heat in the internal space of the cabinet, and rapid cooling of the internal space of the cabinet is realized; in the above technology, the air is forced to flow by the air cooler, which greatly improves the heat exchange efficiency of the air and the refrigerant in the heat exchange tubes, compared with natural convection, the air can be cooled more quickly, and the low-temperature air can be transported to the internal space of the cabinet, so that the rapid cooling of the internal space of the cabinet is realized, and the demand for rapid cooling is met; the second condenser and the linkage structure thereof in the above technology are prior art, so the specific operation principle and structure thereof will not be described in detail; the second refrigerating device in the above technology is prior art, which can be a wind-cooled refrigerating system or a wind-cooled refrigerating unit, or a wind-cooled condenser unit, which can be adjusted according to actual production and use requirements; the traditional wind-cooled refrigerating system further comprises a compression module, an evaporator module and an expansion valve module, and the compression refrigeration process will not be described in detail because it is prior art.

[0015] The utility model further sets up: The cabinet two side inner walls on set up drainage canal along the cabinet length direction, the drainage canal end has the drainage pipe, the drainage canal with chamber bottom wall opposite inclination setting, The drainage canal inclination direction from the drainage canal beginning end to the drainage canal end direction of chamber bottom wall inclination setting, The chamber is provided with the fender, The fender radial cross section is arc setting, The fender is by protuberance and two end parts constitute, The fender two end parts are with chamber two side wall connection setting respectively, The fender two end parts are below each corresponding drainage canal setting respectively, The fender is below the cold storage pipeline position setting.

[0016] The drainage channel is arranged on the length direction of the two side walls of the chamber, and is matched with the drainage pipe at the rear end to form a complete and smooth drainage system, the drainage channel is arranged to be inclined from the start end to the end of the drainage channel towards the bottom wall of the chamber, and the accumulated water in the chamber can be rapidly collected and flowed to the drainage pipe by gravity, so that the chamber is efficiently drained, the accumulated water is prevented from being retained in the chamber for a long time, and damage to the quality of the frozen goods caused by water accumulation is avoided, and the storage environment of the goods is kept in a dry and suitable state; the arc-shaped radial cross-section design of the water baffle, the cooperation of the raised portion and the two end portions can more efficiently collect the condensed water in the chamber, and guide the water mist condensed on the outer wall of the energy storage pipe when the energy storage pipe releases cold energy, that is, when the water mist condenses into water droplets, the water droplets will drop on the water baffle and flow along the arc direction of the water baffle until the drainage channel, thereby avoiding the water droplets from dropping on the frozen goods and affecting the outer packaging of the goods; especially, in the refrigeration environment, the energy storage pipe and the cold storage cylinder will all have frost phenomenon, and the long-term frosting and defrosting process may make the surface of the pipeline rough, affecting the heat exchange efficiency of the refrigerant and air, and in the frosting process, dust, impurities and the like in the air may be attached to the frost layer and the surface of the pipeline, so that the energy storage pipe and the cold storage cylinder need to be subjected to acid brushing treatment, the acid liquid reacts with the dirt and impurities to dissolve or loosen them, so that subsequent cleaning is facilitated, the acid liquid can slightly corrode the surface of the pipeline to make the rough surface relatively smooth, reduce the air flow resistance, and also facilitate heat transfer, that is, the dirt and impurities are removed, and after the surface condition of the pipeline is improved, the heat transfer efficiency between the refrigerant and the air is improved, the smoother surface is beneficial to the full contact of air and the pipeline, so that heat transfer is more smooth, in the second refrigeration device, the improvement of heat exchange efficiency means that air can be cooled more efficiently, so that the temperature of the space inside the cabinet is lowered faster, and the dirt and impurities on the surface of the pipeline are cleaned in time to avoid their long-term corrosion effect on the pipeline, and the improved surface condition of the pipeline reduces the mechanical damage to the pipeline caused by frosting and defrosting, which helps to prolong the service life of the equipment; based on the above description, the drainage channel and the water baffle are arranged to prevent acid liquid from overflowing into the chamber and eroding and damaging the goods during acid brushing, and to prevent the acid liquid from overflowing to damage the structure of the cabinet, that is, the acid liquid after acid brushing is concentrated by the drainage channel and the water baffle.

[0017] The chamber is further provided with a walking plate surface, the walking plate surface divides the chamber into a freezing area and a storage area, the walking plate surface is composed of a plurality of horizontal rods and a plurality of vertical rods which are connected to each other in a crisscross manner, and a plurality of the vertical rods and a plurality of the horizontal rods are combined to form a plurality of placement grids for placing external frozen goods into the storage area.

[0018] The above technical scheme has the advantages that: the walking plate surface divides the chamber into a freezing area and a storage area, realizing clear division of functional areas. The freezing area is dedicated to providing a stable low-temperature environment for display showcases, ensuring the display and preservation of frozen goods; the storage area is used to store standby goods, packaging materials and other items, avoiding the occupation of valuable space in the freezing area, making the refrigeration efficiency of the freezing area higher, and allowing the entire chamber space to be used more scientifically and orderly; meanwhile, the walking plate surface provides great convenience for replenishment personnel through the placement grid formed by the interlaced horizontal rods and vertical rods. When replenishing, external frozen goods can be accurately and stably placed in the grid without the need for additional searching for suitable positions or worrying about the goods falling. When the operator moves on the walking plate surface, the goods can be conveniently taken from the storage area and replenished to the display showcases in the freezing area, simplifying the replenishment process, shortening the replenishment time, and improving the overall replenishment efficiency; and the hollow grid structure of the walking plate surface does not hinder the circulation of air in the chamber. Cold air can smoothly pass through the grid and circulate between the freezing area and the storage area, allowing the standby goods in the storage area to also be in a relatively low-temperature environment, avoiding the situation where the temperature in the storage area is too high and affecting the quality of frozen goods, and helping to maintain the balanced and stable temperature of the entire chamber.

[0019] The utility model further sets up: a plurality of horizontal rods and a plurality of vertical rods one to one and every horizontal rod beginning end all are hingedly arranged on the corresponding vertical rod, every horizontal rod all swing setting in the corresponding placement grid, every horizontal rod end all is provided with the deduction board for the deduction on the adjacent vertical rod top wall, the deduction board is connected with the horizontal rod top wall setting, the horizontal rod top wall is set up with the vertical rod top wall.

[0020] The above technical scheme has the advantages that: the horizontal rods and vertical rods are connected in a hinged manner, allowing the horizontal rods to swing flexibly within the corresponding placement grid. This design breaks the limitations of traditional fixed structures. When a larger frozen good needs to be placed, the operator can easily swing the horizontal rods to expand the space of the placement grid as needed, adapting to the storage needs of goods of different specifications, improving the space utilization rate of the storage area of the chamber, and reducing the problem of messy stacking of goods due to space limitations; meanwhile, when taking out the goods, the operator does not need to lift or cross the horizontal rods, but only needs to gently push the horizontal rods, which can swing around the hinge, reducing the operation obstacles, making the replenishment and use of goods more rapid and smooth, further improving the replenishment and goods handling efficiency, and thus meeting the needs of small and medium-sized supermarkets.

[0021] The utility model further sets up: the cabinet body both sides wall bottom extends and forms the protruding part outward, the display show window is by vertical show window and horizontal show window constitutes, the vertical show window sets up on the cabinet body side wall, the horizontal show window sets up on the protruding part, every The horizontal show window is all in each corresponding vertical show window just below position setting, the hollow of horizontal show window forms the containing cavity which communicates with the chamber, the containing cavity is provided with the goods board for placing outside frozen commodity, the containing cavity communicates with the chamber setting.

[0022] The above technical scheme has the advantages that: by dividing the display show window into vertical show window and horizontal show window, the vertical space of the cabinet body is ingeniously utilized, without occupying too much site area, more space for placing frozen goods is provided, the containing cavity communicates with the chamber, the goods are conveniently arranged and arranged, the storage capacity of the whole cabinet body is greatly improved, the merchant can display more various frozen goods, and the diversified selection and purchase demand of consumers is met; the layout of the horizontal show window is adjacent to the vertical show window, and the replenishment personnel does not need to carry the goods for a long distance. When the goods in the vertical show window are sold out and need to be replenished, the staff can directly take the goods from the connected chamber, and place the goods on the goods board of the horizontal show window, so that the replenishment process is simplified, the replenishment time is greatly shortened, especially during the peak sales period, the shelf can be kept full at all times, the shopping experience is improved, the combination design of the horizontal show window and the vertical show window makes the display of the frozen goods have more levels and logic, consumers are attracted through the vertical show window, and then the vision is naturally lowered to see the related goods in the horizontal show window, the coherent visual presentation helps to deepen the impression of the consumers on the goods, guides them to understand the goods categories more comprehensively, further stimulates the consumption desire, promotes the sales, and since the containing cavity communicates with the chamber, the cold air in the chamber can flow into the containing cavity of the horizontal show window naturally, so that the temperature in the horizontal show window matches the overall low-temperature environment of the chamber. This avoids the problems of shortened preservation period and quality decline of the goods caused by local temperature difference, provides stable and unified storage conditions for the frozen goods, and prolongs the preservation time of the goods. The integrated space utilization design reduces the demand for additional independent storage equipment. Compared with purchasing multiple scattered frozen storage cabinets, the design integrates the display and storage functions, reduces the equipment procurement cost, reduces the subsequent maintenance and energy consumption cost due to the reduction of the equipment quantity, and helps retail places such as supermarkets to optimize the operation cost structure.

[0023] The utility model further sets up: the containing cavity is opposite and is provided with two slide rails, the slide rail opening direction is same with the chamber and the containing cavity communication direction consistent setting, the goods board both ends are respectively shifted and set up on two slide rails.

[0024] The two sliding rails arranged oppositely in the cavity, in cooperation with the slidable goods plate, make the storage layout highly flexible. Merchants can easily push and pull the goods plate according to the actual size and quantity of frozen goods, adjust the position of the goods plate on the sliding rail, and allocate the space in the cavity as needed. Whether it is to stack large boxed frozen products or to display small single products, it can be quickly adapted to make full use of the cavity space and avoid space waste; meanwhile, when replenishing the goods in the horizontal window, the sliding goods plate greatly simplifies the operation process. When new goods need to be replenished, the goods plate can be pulled out to a suitable distance, and the goods can be placed on the plate without any obstruction, and then pushed back to the original position; similarly, when arranging goods and checking inventory, the goods plate can also be moved conveniently to quickly check and arrange the goods in each area, which significantly improves the efficiency of replenishing and arranging goods, and the slidable goods plate provides convenience for consumers to select and purchase goods in the horizontal window. Customers can pull out the goods plate to get closer to the goods, making it easier to take the desired frozen goods without having to struggle to reach into the cavity, improving the shopping experience, especially for goods placed deep in the cavity. This design effectively reduces the difficulty of taking goods. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a front three-dimensional view of the utility model;

[0026] Figure 2 It is a back three-dimensional view of the utility model;

[0027] Figure 3 It is a three-dimensional view of the first refrigeration device and the cold storage device in the utility model in a linked state;

[0028] Figure 4 It is a simple three-dimensional view of the second refrigeration device in the utility model;

[0029] Figure 5 It is a three-dimensional view of the cabinet body in the utility model;

[0030] Figure 6 It is a front view of Figure 5 ;

[0031] Figure 7 It is a three-dimensional view of the cold storage pipe group in the utility model;

[0032] Figure 8 It is a three-dimensional view of the water baffle in the utility model;

[0033] Figure 9 It is a three-dimensional view of the walking plate surface in the utility model;

[0034] Figure 10 It is a three-dimensional view of the cabinet body in the utility model;

[0035] Figure 11 For Figure 10 Part A of the enlarged three-dimensional view.

[0036] The above-mentioned specification drawings are identified as: cabinet 1, display window 11, vertical window 111, horizontal window 112, cavity 113, goods plate 114, slide rail 115, chamber 12, drainage channel 121, baffle 122, drain pipe 13, protrusion 14, first refrigeration device, compressor 21, first condenser 22, heat exchanger 23, cold storage device, cold storage pipe group 31, cold storage pipe 311, cold storage pipe 312, cold storage cylinder 313, liquid tank 32, circulating pipe 33, circulating pump 34, second refrigeration device, second condenser 41, air cooler 42, walking plate 5, freezing area 51, storage area 52, horizontal rod 53, deduction plate 531, vertical rod 54, placement grid 55. DETAILED DESCRIPTION

[0037] The utility model provides a combined display freezer, including the cabinet 1 and first refrigerating plant, the cabinet 1 both side wall has along the cabinet 1 length direction distribution and has several display show window 11, it is characterized by: still including the second refrigerating plant for refrigeration to make display show window 11 fast cooling and the cold storage device for with first refrigerating plant carries out cold amount interactive cooperation, the cold storage device includes the cold storage pipe group 31, the cabinet 1 has the chamber 12 for the cold storage pipe group 31 accommodation, the cold storage pipe group 31 is filled with the cold storage liquid for with the cold storage device carries out the cold amount interaction and makes display show window 11 temperature reduction and carries out the cold storage, first refrigerating plant includes compressor 21, first condenser 22 and heat exchanger 23, the compressor 21 is linked together with first condenser 22 and is matched with setting, first condenser 22 is linked together with heat exchanger 23 and is matched with setting, the cold storage device still includes the liquid tank 32 of storing the cold storage liquid, the circulating pipeline 33 for connecting liquid tank 32 and cold storage pipe group 31 and the circulating pump 34 for with circulating pipeline 33 intercommunication to make the cold storage liquid circulation, the liquid tank 32 is linked together with heat exchanger 23 and is matched with setting, the second refrigerating plant includes second condenser 41 and sets up in the cold fan 42 in chamber 12, the cabinet 1 both side inner wall has along the cabinet 1 length direction and is set up with drainage canal 121, the drainage canal 121 end is connected with the drain pipe 13, the drainage canal 121 and chamber 12 bottom wall are opposite and are arranged obliquely, the drainage canal 121 oblique direction is from the drainage canal 121 beginning end to the drainage canal 121 end and is arranged obliquely to chamber 12 bottom wall direction, be provided with the baffle 122 in the chamber 12, the baffle 122 radial section is arranged as a circular arc, the baffle 122 is formed by the protuberance and two end parts, the baffle 122 two end parts are connected with the chamber 12 both side wall setting respectively, the baffle 122 two end parts are below each other corresponding drainage canal 121 setting respectively, the baffle 122 is below the cold storage pipe road position setting, be provided with the walking plate surface 5 in the chamber 12, the walking plate surface 5 divides into freezing area 51 and the storage area 52 with chamber 12, the walking plate surface 5 is formed by the interlaced connection of a plurality of horizontal rods 53 and a plurality of vertical rods 54, a plurality of the vertical rod 54 and a plurality of horizontal rods 53 are combined to form a plurality of placement grid 55 for placing external frozen goods into the storage area 52, a plurality of the horizontal rod 53 and a plurality of the vertical rod 54 are one-to-one corresponding and each horizontal rod 53 beginning end is hingedly arranged on the corresponding vertical rod 54, each the horizontal rod 53 is swing setting in the corresponding placement grid 55, each the horizontal rod 53 end is provided with the deduction plate 531 for deducting on the top wall of adjacent vertical rod 54, the deduction plate 531 is connected with the horizontal rod 53 top wall setting, the horizontal rod 53 top wall is flush with the vertical rod 54 top wall setting, the cabinet 1 both side wall bottom extends and forms the protruding part 14 outward, the display show window 11 is formed by vertical show window 111 and horizontal show window 112, the vertical show window 111 sets up on the cabinet 1 side wall, the horizontal show window 112 sets up on the protruding part 14,Each of the horizontal display window 112 is located below the corresponding vertical display window 111, the horizontal display window 112 is hollow to form a cavity 113 which is communicated with the chamber 12, the cavity 113 is provided with a goods plate 114 for placing external frozen goods, the cavity 113 is communicated with the chamber 12, two slide rails 115 are oppositely arranged in the cavity 113, the slide rails 115 are arranged in the same direction as the communication direction between the chamber 12 and the cavity 113, and the two ends of the goods plate 114 are respectively slidably arranged on the two slide rails 115.

[0038] When the temperature sensor in the cabinet detects that the temperature of the chamber or the display window is higher than the set threshold value, the first refrigeration device is started, and the compressor starts to work to suck in low-temperature and low-pressure gaseous refrigerant. The compressor compresses the sucked gaseous refrigerant, and through work on the refrigerant, the gaseous refrigerant is converted into high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant compressed by the compressor is transported to the first condenser through the liquid conveying pipeline. In the first condenser, the high-temperature and high-pressure gaseous refrigerant exchanges heat with the cooling water. Since the temperature of the cooling water is relatively low, the refrigerant transfers heat to the cooling water and gradually liquefies itself. The cooling water in the first condenser continuously circulates to take away the heat of the refrigerant, so that the refrigerant is converted into high-temperature and high-pressure liquid refrigerant in this process. The high-temperature and high-pressure liquid refrigerant is then processed by the expansion valve in the first condenser to convert the high-temperature and high-pressure liquid refrigerant into low-temperature and low-pressure liquid refrigerant. Under the action of the pressure difference, the low-temperature and low-pressure liquid refrigerant flows into the heat exchanger through the flow pipeline. In the heat exchanger, the low-temperature and low-pressure liquid refrigerant exchanges cold energy with the cold storage liquid. Because the temperature of the refrigerant is lower than the temperature of the cold storage liquid, the refrigerant absorbs the heat emitted by the cold storage liquid. At this time, the cold storage liquid gradually cools down until it reaches the freezing temperature. The cold storage liquid in the heat exchanger is transported to the cold storage pipe group, and the circulating pump returns the cold storage liquid in the cold storage pipe group to the liquid tank. In this way, the liquid tank can subsequently transport the cold storage liquid to the heat exchanger through the circulating pipeline for cold energy exchange. After the low-temperature and low-pressure liquid refrigerant exchanges cold energy in the heat exchanger, it is converted into low-temperature and low-pressure gaseous refrigerant and returns to the compressor for subsequent circulation.

[0039] In the above technology, the cold storage pipe group can be defined according to actual operation requirements and cold storage requirements. That is, the cold storage pipe group 31 is composed of at least one layer of cold storage pipeline 311. The cold storage pipeline 311 is composed of a plurality of straight cold storage pipes 312. Adjacent cold storage pipes 312 are connected end to end and arranged in a zigzag S shape. Any one of the cold storage pipes 312 in the cold storage pipeline 311 is connected to any one of the cold storage pipes 312 of the adjacent cold storage pipeline 311. The bottom of each cold storage pipe 312 of the lowermost cold storage pipeline 311 is vertically provided with a cold storage cylinder 313. Each of the cold storage cylinders 313 is communicated with the corresponding cold storage pipe 312.

[0040] The above-mentioned technology is composed of at least two layers of cold storage pipes, and the multi-layer structure significantly increases the contact area with the cold storage liquid and the retention volume of the cold storage liquid, so that more cold energy can be stored. Compared with a single layer of cold storage pipes, the design can capture and retain more cold energy from the refrigeration device under the same space occupation, providing more sufficient "cold energy reserve" for maintaining a low-temperature environment during peak electricity periods or sudden failures of the refrigeration device. The energy storage pipe is straight, reducing the additional resistance caused by bending when the refrigerant or cold storage liquid flows in the pipe, ensuring smooth passage of the fluid, making the cold energy transfer more efficient. At the same time, the winding S-shaped pipe layout greatly prolongs the flow path of the refrigerant or cold storage liquid, allowing it more time for heat exchange in the cold storage pipe. Whether it is the transfer of cold energy to the cold storage liquid during refrigeration or the supply of cold energy from the cold storage liquid to the chamber during cold energy release, it can be more sufficient and efficient, reducing cold energy loss. Adjacent energy storage pipes are connected at the head and tail, and the energy storage pipes between different cold storage pipes are also connected. This complex and orderly connection allows the cold storage liquid to circulate evenly throughout the entire cold storage pipe group. When storing cold energy, the energy storage pipes at each location can evenly absorb cold energy. During the cold energy release stage, it can also ensure that the cold energy is evenly distributed from the cold storage pipe group to the chamber, avoiding local cold energy concentration or loss, and creating a stable and consistent low-temperature environment for frozen goods in the display window. Thanks to the efficient cold energy storage and uniform distribution characteristics, the stability of the entire refrigeration device is enhanced. In the face of soaring electricity prices during peak electricity periods, the stable output of cold energy can ensure that the display window temperature does not fluctuate significantly, and the quality of the goods is not affected. At the same time, the design of the cold storage pipe group also allows the refrigeration device to better adapt to changes in refrigeration demand in different seasons and different customer flow scenarios, calmly coping with complex and variable use environments. The ingenious S-shaped winding layout and multi-layer structure design maximize the cold storage efficiency of the cold storage pipe group in a limited chamber space, avoiding excessive expansion of the equipment size in pursuit of large-capacity cold storage. It not only saves valuable supermarket space, but also reduces the cost of materials, installation and maintenance that may be caused by the large-scale equipment, improving the product's cost performance and market competitiveness. The cold storage cylinder is vertically arranged at the bottom of the energy storage pipe of the lowermost cold storage pipe, and its vertical structure can guide the cold storage liquid and cold energy to sink and converge naturally under the action of gravity. During the refrigeration process, this design is beneficial to capturing and retaining cold energy that has not been fully exchanged while flowing in the energy storage pipe, making the cold energy precipitation effect better and further expanding the cold energy reserve of the entire cold storage device to ensure that there is sufficient "cold energy reserve" to cope with peak electricity periods or sudden changes in refrigeration demand. At the same time, since the cold storage cylinder is connected with the corresponding energy storage pipe, the cold energy stored in the cold storage cylinder can be used as a supplement to deliver cold energy to the chamber together with the energy storage pipe during the cold energy release stage.When the temperature of the local area of the chamber fluctuates due to the placement of goods, poor air circulation, etc., the cold storage cylinder can timely "check and make up" for the leakage, make the cold release more uniform, and stably maintain the low-temperature environment of each position in the display window, so as to ensure the consistency of the quality of frozen goods. The cold storage cylinder increases the storage space and flow path of the cold storage liquid, so that a relatively independent and interactive circulating microenvironment is formed in the cylinder. This additional space extension makes the heat exchange time between the cold storage liquid and the cylinder wall and the energy storage pipe more sufficient and the contact more sufficient, deeply strengthens the heat exchange effect, reduces the waste of cold in the transmission process, and improves the energy efficiency ratio of the entire cold storage system. At the same time, in the face of sudden high-load refrigeration demand, such as a sudden increase in the number of customers in supermarkets during the summer high-temperature period, or frequent opening and closing of the cabinet door to replenish goods, which causes the cold to dissipate too quickly, the cold storage cylinder can quickly respond to the cold storage liquid and the energy storage pipe together to release a large amount of cold in a short time, enhance the response capability of the entire refrigeration device, and quickly restore the suitable low-temperature environment of the display window.

[0041] The above technology does not further limit the shape of the cold storage pipeline, which can adopt various arrangement combinations.

[0042] The cold storage liquid described in the present application can be placed according to actual needs, for example, a phase change cold storage agent can be used. The phase change cold storage agent is a semi-transparent (or opaque) viscous gel mixture composed of organic or (and) inorganic compounds, which can absorb and store a large amount of cold at low temperature, and release a large amount of cold at higher temperature, maintain a low-temperature environment for a long time, and can use low-temperature phase change cold storage agents or eutectic salts, etc. According to actual needs, existing cold exchange media such as refrigerants can also be used.

[0043] The cold quantity described in the paper is essentially energy, which is a measure of the heat removed from the cooled object by the refrigeration system. From the perspective of thermodynamics, heat will spontaneously transfer from a high-temperature object to a low-temperature object. The refrigeration device creates a low-temperature environment by consuming energy to promote the transfer of heat from the cooled space or object. The amount of heat transferred is the cold quantity. For example, a household refrigerator continuously removes the heat of food and air in the refrigerator to maintain a low-temperature environment. The amount of heat removed by the refrigerator is the cold quantity generated by the refrigerator. In the refrigeration device, the cold quantity interaction refers to the process of transferring and exchanging cold quantity between different media, components or spaces. This process usually involves heat transfer between the refrigeration working medium and the cooled object or space, as well as the transfer of cold quantity between different components in the refrigeration system. For example, in an air conditioning system, the low-temperature and low-pressure refrigerant absorbs the heat of indoor air to cool the air and realize the interaction of cold quantity from the refrigerant to the indoor air. In the outdoor unit, the high-temperature and high-pressure refrigerant gas is cooled by the condenser to the outside environment, which involves the transfer of cold quantity from the refrigerant to the outdoor environment. Based on the description of the term "cold quantity", the classic textbook "Principles and Equipment of Refrigeration" (Fourth Edition, edited by Wu Yezheng) for refrigeration majors in colleges and universities describes the generation, calculation and application of cold quantity in various refrigeration cycles. In many academic papers related to refrigeration, such as "Dynamic Simulation and Optimization of Multi-temperature Zone Refrigerator Based on Cold Quantity Distribution" (published in "Journal of Refrigeration"), the article focuses on the cold quantity distribution and interaction of different temperature zones in the refrigerator, fully demonstrating the universal and fundamental existence of the cold quantity concept in the research and practice of the refrigeration industry.

[0044] The basic principles and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application. These changes and improvements fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A combination display freezer cabinet comprising a cabinet body and a first refrigeration device, a plurality of display windows are distributed along the length direction of the cabinet body on the two side walls of the cabinet body, characterized in that: The second refrigeration device for refrigeration to rapidly reduce the temperature of the display window and the cold storage device for cold energy interaction with the first refrigeration device are also included, and the cold storage device includes a cold storage pipe group filled with cold storage liquid for reducing the temperature of the display window and storing cold after cold energy interaction with the cold storage device.

2. A combination display freezer as defined in claim 1, wherein: The first refrigeration device includes a compressor, a first condenser, and a heat exchanger, the compressor is in linkage with the first condenser, and the first condenser is in linkage with the heat exchanger, the cold storage device further includes a liquid tank storing the cold storage liquid, a circulating pipeline connecting the liquid tank and the cold storage pipe group, and a circulating pump in communication with the circulating pipeline to circulate the cold storage liquid, and the liquid tank is in linkage with the heat exchanger.

3. A combination display freezer as defined in claim 1, wherein: The second refrigeration device includes a second condenser and a cold air fan arranged in the chamber.

4. The combination display freezer of claim 1, wherein: Drainage channels are arranged on the inner walls of the two side walls of the cabinet along the length direction of the cabinet, drainage pipes are in communication with the end of the drainage channels, the drainage channels are oppositely arranged with the bottom wall of the chamber, the inclination direction of the drainage channels is from the beginning end to the end of the drainage channels, and the inclination direction of the drainage channels is arranged towards the bottom wall of the chamber, a water baffle is arranged in the chamber, the radial cross section of the water baffle is arranged in a circular arc, the water baffle is composed of a raised portion and two end portions, the two end portions of the water baffle are respectively connected with the two side walls of the chamber, the two end portions of the water baffle are respectively arranged below the corresponding drainage channels, and the water baffle is arranged below the cold storage pipeline.

5. The combination display freezer of claim 1, wherein: A walking plate is arranged in the chamber, the walking plate divides the chamber into a freezing area and a storage area, the walking plate is composed of a plurality of horizontal rods and a plurality of vertical rods which are connected with each other in a crisscross manner, and a plurality of placement grids for placing external frozen goods into the storage area are formed by the combination of the plurality of vertical rods and the plurality of horizontal rods.

6. A combination display freezer as defined in claim 5, wherein: The plurality of horizontal rods correspond to the plurality of vertical rods one by one, and the beginning end of each horizontal rod is hingedly arranged on the corresponding vertical rod, each horizontal rod is swingably arranged in the corresponding placement grid, and the end of each horizontal rod is provided with a buckling plate for buckling on the top wall of the adjacent vertical rod, the buckling plate is connected with the top wall of the horizontal rod, and the top wall of the horizontal rod is flush with the top wall of the vertical rod.

7. The combination display freezer of claim 1, wherein: The bottom of the two side walls of the cabinet extends outward to form a protruding portion, the display window is composed of a vertical window and a horizontal window, the vertical window is arranged on the side wall of the cabinet, and the horizontal window is arranged on the protruding portion, each horizontal window is arranged below the corresponding vertical window, a cavity in communication with the chamber is formed in the horizontal window, a goods plate for placing external frozen goods is arranged in the cavity, and the cavity is in communication with the chamber.

8. A combination display freezer as defined in claim 7, wherein: Two slide rails are oppositely arranged in the cavity, the opening direction of the slide rails is consistent with the communication direction of the chamber and the cavity, and the two ends of the goods plate are respectively slidably arranged on the two slide rails.

Images