Integral drawer type refrigerating unit structure of air-cooled vertical display cabinet

Abstract

The utility model discloses an integral drawer type refrigerating unit structure of an air-cooled vertical display cabinet, which comprises a bottom plate slidably connected to the inner bottom of the display cabinet. The evaporation heat preservation box is arranged on the bottom plate; the fin evaporator is arranged in the evaporation heat preservation box; a defrosting water storage box is arranged on the bottom plate and located below the outer side of the evaporation heat preservation box. And a drainage pipe with the tail end located in the defrosting water storage box is arranged at the bottom in the evaporation heat preservation box. The evaporator, related components of the evaporator, the compressor and other related components are intensively arranged on the bottom plate at the bottom end of the exterior of the display cabinet and are integrally pushed in or pulled out, the storage space of the display cabinet is obviously increased, and the display cabinet has the advantages of simplifying the structure, improving the production efficiency, optimizing the later maintenance cost and the like. The solar water heater is good in sealing connection performance, and can automatically collect and evaporate condensate water and defrosting water.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigeration equipment, and in particular relates to an integral drawer-type refrigeration unit structure of an air-cooled vertical display cabinet. Background Art

[0002] At present, the vertical display cabinets on the market use air cooling as the refrigeration method. Usually, the evaporator and its related components are set at the top of the display cabinet, and the compressor, cooling fan, condenser and other related components are set at the bottom of the display cabinet and are dispersed or centralized on the bottom frame. Its shortcomings are: first, the evaporator and its related components are set inside the display cabinet, occupying more storage space in the cabinet; second, so many components are operated on the assembly line, and the operation efficiency of the assembly line will be affected due to the numerous installation steps and processes; third, the pipelines and lines of the evaporator and its related components in the cabinet must pass through the foam layer at the bottom of the display cabinet to connect to the compressor room at the bottom of the display cabinet and weld and connect with related components. In the later related maintenance, the connection between the cabinet components and the machine room components must be cut off before continuing the next operation.

[0003] The Chinese patent document with publication number CN218380043U discloses a modular refrigeration assembly, which includes an outer case and a compressor, a condenser, a throttle and a first evaporator arranged inside the outer case, a heat dissipation cavity and a first refrigeration cavity are arranged inside the outer case, the first evaporator is arranged in the first refrigeration cavity, the condenser is arranged in the heat dissipation cavity, the outer case is provided with a ventilation structure, the ventilation structure connects the heat dissipation cavity and the outside, the outer case is provided with a first cold outlet connected to the first refrigeration cavity, and the compressor, condenser, throttle and first evaporator constitute a refrigeration system. The refrigeration system is combined by using an outer case so that it can be directly installed on the cabinet as a whole for cooling, and it is also disassembled as a whole when disassembled.

[0004] Although the above patent solution has modularized the refrigeration component and solved the three technical problems mentioned above to a certain extent, it will face the problem of the defrost water flowing out of the evaporator and the condensed water flowing out of the display cabinet being deposited in the refrigeration component. If the water cannot be treated in time, the accumulation of water or frost in the refrigeration component will greatly affect the working efficiency and service life, and direct external drainage will affect the surrounding environment. Utility Model Content

[0005] In order to overcome the technical problems of condensed water and defrost water generated in modular refrigeration components in the prior art, one purpose of the utility model is to provide an integral drawer-type refrigeration unit structure for an air-cooled vertical display cabinet, by arranging a fin evaporator in an evaporative insulation box, and arranging a water collecting device outside the evaporative insulation box that is connected to the bottom of the evaporative insulation box to receive water flowing out of the evaporative insulation box.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: an integral drawer-type refrigeration unit structure of an air-cooled vertical display cabinet, comprising a bottom plate, which is slidably connected to the bottom of the display cabinet; an evaporative insulation box, which is arranged on the bottom plate; a fin evaporator, which is arranged in the evaporative insulation box; wherein a defrost water storage box is arranged on the bottom plate below the outer side of the evaporative insulation box; a drain pipe with its end located in the defrost water storage box is arranged at the bottom of the evaporative insulation box; the height of the end of the drain pipe close to the evaporative insulation box is greater than the end of the drain pipe close to the defrost water storage box.

[0007] The water vapor in the display cabinet condenses into small water droplets when it is cooled in the evaporative insulation box. The water droplets gather and flow into the bottom of the evaporative insulation box, and then flow into the defrost water storage box through the drain pipe, thereby preventing the water droplets accumulated in the evaporative insulation box from frosting and improving the refrigeration effect.

[0008] Preferably, a sliding cavity slidably connected to the bottom plate is formed at the lower rear portion of the display cabinet; two air vents connected to the interior of the display cabinet are formed on the upper inner wall of the sliding cavity; fans are respectively provided in the two air vents; the upper end of the evaporating and heat-insulating box is open; the fin evaporator is installed at the central position of the opening; the fin evaporator divides the internal space of the evaporating and heat-insulating box into two cavities; the two cavities are respectively connected to the air vents; and the two fans rotate in opposite directions.

[0009] One of the two cavities is a return air hot zone, and the other is an outlet air cold zone; when the fan is working, the air in the outlet air cold zone is brought into the display cabinet, and at the same time, the other fan is working to bring the air in the display cabinet to the return air hot zone. The air in the return air hot zone passes through the fin evaporator to be cooled, and this cycle repeats.

[0010] Optionally, a slanted lifting slope is provided at the front end of the lower wall of the sliding cavity; a positioning groove is provided along the left and right directions at the rear end of the lower wall of the sliding cavity; a plurality of positioning screws for inserting into the positioning grooves are rotatably connected to the rear end of the bottom plate, so that the evaporating insulation box slides upward until it is against the lower wall of the sliding cavity, thereby improving the sealing effect.

[0011] Preferably, an annular groove is formed at the upper end of the evaporating insulation box, located outside the two air outlets; a box opening sealing ring is arranged in the groove; a sealing sponge is arranged at the upper end of the fin evaporator; and the sealing sponge is flush with the upper end of the box opening sealing ring.

[0012] Preferably, a waist-shaped opening is formed on the bottom plate near the rear end.

[0013] Furthermore, a condenser is installed on the upper end of the base plate; a compressor is installed on the upper end of the base plate; the upper end of the defrost water storage box is open; a defrost water evaporation tube is arranged in the defrost water storage box; one end of the defrost water evaporation tube is connected to the air inlet of the condenser, and the other end is connected to the exhaust port of the compressor.

[0014] The high-temperature and high-pressure refrigerant discharged from the compressor is used to evaporate the defrost water flowing out of the fin evaporator and the condensed water flowing out of the display cabinet collected by the defrost water storage box through the defrost water evaporation pipe.

[0015] Furthermore, a heat dissipation fan is provided between the condenser and the compressor; the rotation direction of the heat dissipation fan causes air to flow from the condenser to the compressor, absorbing the heat dissipated by the condenser while cooling the compressor.

[0016] Furthermore, a drying filter is provided at the air outlet of the condenser; a capillary tube is provided on the bottom plate; one end of the capillary tube is connected to the narrow end of the drying filter, and the other end is connected to the air inlet of the fin evaporator.

[0017] Furthermore, an air return pipe is arranged on the bottom plate; one end of the air return pipe is connected to the air outlet of the fin evaporator, and the other end of the air return pipe is connected to the air intake of the compressor.

[0018] Preferably, the middle section of the capillary tube is tightly wrapped around the middle section of the return air pipe; the outer peripheries of the wrapped sections are covered with heat shrink tubing to enhance the heat exchange effect.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The integral drawer-type refrigeration unit structure of the air-cooled vertical display cabinet of the utility model centrally arranges the evaporator and its related components and the compressor, heat dissipation fan, condenser and other related components on a bottom plate at the bottom of the display cabinet to form an integral drawer-type refrigeration unit, which can be quickly pushed in or pulled out from the rear opening at the bottom of the display cabinet. This structure not only significantly increases the storage space of the display cabinet, but also has the characteristics of simplifying the structure, improving production efficiency, and optimizing the later maintenance cost.

[0021] 2. The utility model has good sealing connectivity. When installing the integral drawer-type refrigeration unit, the bottom plate is lifted upward by the lifting slope and the positioning screws, thereby compressing and deforming the box opening sealing ring and the sealing sponge, achieving the best sealing effect, reducing the loss of cold and the entry of heat, and reducing energy consumption.

[0022] 3. The utility model can automatically collect and evaporate condensed water and defrosted water, reduce the water content in the evaporation insulation box, prevent water frost from interfering with the heat dissipation of the fin evaporator, and increase the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model after the integrated drawer-type refrigeration unit is pushed into the bottom of the display cabinet;

[0024] Figure 2 This is a schematic diagram of the structure of the utility model when the integrated drawer-type refrigeration unit is not pushed into the bottom of the display cabinet;

[0025] Figure 3 This is a schematic diagram of the structure of the integrated drawer-type refrigeration unit of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the display cabinet of the utility model without a refrigeration unit installed;

[0027] Figure 5 It is a schematic diagram of the cross-sectional structure of the integrated drawer-type refrigeration unit of the utility model after being pushed into the bottom of the display cabinet.

[0028] In the figure: 1. display cabinet; 11. sliding cavity; 111. air inlet; 112. air outlet; 113. lifting slope; 114. positioning groove; 12. fan; 13. positioning screw; 2. integral drawer-type refrigeration unit; 21. bottom plate; 211. waist-shaped opening; 22. condenser; 221. heat dissipation fan; 23. compressor; 24. evaporative insulation box; 241. outer shell; 242. liner; 243. bottom shell; 244. box mouth frame; 245. drain pipe; 246. box mouth sealing ring; 25. piping system; 251. capillary tube; 252. return air pipe; 253. drying filter; 254. defrost water storage box; 255. defrost water evaporation pipe; 256. sealing sponge; 26. fin evaporator; 27. power cord. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0030] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise specified and limited, the terms "setting", "installation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] See also Figure 1 to Figure 5 An integrated drawer-type refrigeration unit structure of an air-cooled vertical display cabinet includes an integrated drawer-type refrigeration unit 2 slidably connected to the lower part of the display cabinet 1; a sliding cavity 11 is provided at the rear bottom of the display cabinet 1; the integrated drawer-type refrigeration unit 2 is pushed in or pulled out of the sliding cavity 11.

[0034] The integrated drawer-type refrigeration unit 2 includes a bottom plate 21 slidably connected to the bottom of the display cabinet, a condenser 22 fixedly connected to the front of the upper end of the bottom plate 21, a compressor 23 fixedly connected to the rear of the upper end of the bottom plate 21, an evaporation insulation box 24 fixedly connected to one side of the upper end of the bottom plate 21, a fin evaporator 26 arranged in the evaporation insulation box 24, and a pipe system 25 for communication; a heat dissipation fan 221 is arranged at the rear of the condenser 22; the pipe system 25 includes a capillary tube 251, a return air pipe 252, a drying filter 253, a defrost water storage box 254, a defrost water evaporation pipe 255, a sealing sponge 256, etc. arranged on the bottom plate 21.

[0035] The evaporation insulation box 24 includes an outer shell 241, an inner liner 242, a bottom shell 243, a box opening frame 244, a drain pipe 245, and a box opening sealing ring 246. The outer shell 241, the inner liner 242, the bottom shell 243, and the box opening frame 244 together form a cavity, and the cavity is filled with insulation material. Three through holes are provided on the right side of the cavity for inserting the capillary tube 251, the return air pipe 252, and the drain pipe 245.

[0036] The drain pipe 245 is arranged on the bottom surface of the inner tank 242 of the evaporation insulation box 24, one end of the drain pipe 245 is connected to the inside of the evaporation insulation box 24, and the other end extends out of the side of the evaporation insulation box 24 and extends to the defrost water storage box 254 fixed on the side of the evaporation insulation box 24. One end of the drain pipe 245 located in the evaporation insulation box 24 is higher than the other end of the defrost water storage box 254, so that the defrost water in the evaporation insulation box 24 can flow out smoothly to the defrost water storage box 254.

[0037] The upper end of the box opening frame 244 is provided with a circle of slots for embedding and fixing the box opening sealing ring 246. The evaporation and thermal insulation box 24 is arranged at the upper left end of the bottom plate 21, and screws are drilled from the bottom to the top through the reserved through holes at the bottom of the bottom plate into the bottom plate of the evaporation and thermal insulation box 24 to firmly fix the two.

[0038] The finned evaporator 26 is placed into the evaporation and heat preservation box 24 from the upper opening and fixed centrally on the bottom end surface of the inner tank of the evaporation and heat preservation box 24. The finned evaporator 26 divides the internal space of the evaporation and heat preservation box 24 into two parts, one end is the return air hot zone, and the other end is the outlet air cold zone. The sealing sponge 256 is pasted on the upper end surface of the finned evaporator 26, and the upper surface of the sealing sponge 256 is flush with the upper surface of the box opening sealing ring 246 after pasting.

[0039] The defrost water storage box 254 is a box with an open upper end. One side of the side end provided with a drain pipe through hole is aligned with the outer pipe opening of the drain pipe 245 extending from the side end of the evaporation insulation box 24, and the two are tightly attached to each other and the defrost water storage box 254 is fixed to the side end of the evaporation insulation box 24 with screws.

[0040] The middle main section of the defrost water evaporation tube 255 is S-shaped, and its main section is placed in the defrost water storage box 254. One end of the defrost water evaporation tube 255 is welded to the air inlet of the condenser 22, and the other end is welded to the exhaust port of the compressor 23. The high-temperature and high-pressure refrigerant discharged by the compressor is used to evaporate the defrost water flowing out of the evaporator and the condensed water flowing out of the display cabinet collected in the defrost water storage box 254 through the defrost water evaporation tube 255.

[0041] The compressor 23, the heat dissipation fan 221, and the condenser 22 are all arranged at the upper right end of the bottom plate 21 and arranged longitudinally in a front-to-back order. The heat dissipation fan 221 is in the center, absorbs the heat emitted by the condenser 22 and blows it toward the compressor 23 for cooling.

[0042] One end of the capillary tube 251 is welded to the air inlet of the fin evaporator 26 , and the other end is welded to the small end of the drying filter 253 after passing through the preset through hole at the side end of the evaporation insulation box 24 ; the large end of the drying filter 253 is welded to the air outlet of the condenser 22 .

[0043] One end of the return air pipe 252 is welded to the air outlet of the finned evaporator 26 , and the other end passes through a preset through hole at the side end of the evaporation and insulation box 24 and is then welded to the air intake of the compressor 23 .

[0044] The middle section of the capillary tube 251 is tightly wrapped around the middle section of the return air pipe 252 for dozens of turns for heat exchange. The wrapped sections are covered with heat shrink tubing to enhance the heat exchange effect.

[0045] A power line 27 is arranged at the upper edge of the bottom plate, and a line clip integrally injection-molded on the line body is fixed to the bottom plate by screws.

[0046] All the pipe welding is completed on the bottom plate 21, and all the wiring harnesses on the bottom plate 21 that need to be connected to the display cabinet are connected with quick plug connectors. The integrated drawer-type refrigeration unit is assembled outside the assembly line and transported to the vicinity of the assembly line for standby, which does not affect the operation efficiency of the assembly line.

[0047] Two rectangular through holes, namely the air vents, are provided in the insulation layer at the lower side of the display cabinet, one is the air inlet 111, and the other is the air outlet 112. Fans 12 are fixed in the two air vents respectively. The fan 12 in the air inlet 111 is installed in a direction to blow air into the cabinet, while the fan 12 in the air outlet 112 is installed in a direction to blow air out of the cabinet.

[0048] The bottom of the display cabinet is fixed with a bottom frame assembly, a side horizontal bar support plate and a bottom foot by screws from bottom to top.

[0049] The bottom frame assembly comprises a side horizontal bar support plate, a middle horizontal bar support plate, a vertical bar support bar, and a bottom foot, wherein the side horizontal bar support plate, the middle horizontal bar support bar, and the vertical bar support bar are connected by welding to form an overall frame.

[0050] The upper edge of one head of the vertical support bar is a sloped upward structure, namely, a lifting slope 113 ; the upper edge of the other head is provided with a circular groove stretching structure, namely, a positioning groove 114 .

[0051] The four sides of the bottom plate 21 are all U-shaped bends, one is to improve the overall strength of the bottom plate, and the other is that the edge bending process will not cut people. The bottom plate 21 is designed with a waist-shaped opening 211 near the edge, which is convenient for people to hold the bottom plate by hand to push in and pull out. Several rivet nuts are fixed near the rear edge of the bottom plate 21, and the rivet nuts penetrate in the longitudinal direction; each of the rivet nuts is rotatably connected to a positioning screw 13.

[0052] The integrated drawer-type refrigeration unit 2 is placed on the upper end surface of the vertical support bar of the bottom frame assembly from the rear side of the display cabinet 1, and then pushed horizontally until it reaches the inclined surface at the innermost end of the vertical support bar. The inner edge of the bottom plate is raised by the upward structure of the inclined surface of the vertical support bar, and the box mouth sealing ring 246 installed at the box mouth of the evaporative insulation box 24 contacts the bottom surface of the insulation layer on the lower side of the display cabinet and is squeezed and deformed to form a sealing effect.

[0053] After the integrated drawer-type refrigeration unit is pushed into place, the positioning screws 13 are screwed into the several rivet nuts at the rear edge of the bottom plate from top to bottom until the bottom surface of the positioning screws 13 contacts the top surface of the circular groove on the vertical support bar. Then, the outer edge of the integrated drawer-type refrigeration unit is raised, and the box opening sealing ring installed at the box opening of the evaporative insulation box contacts the bottom surface of the insulation layer on the lower side of the display cabinet and is squeezed and deformed to form a sealing effect.

[0054] After the integrated drawer-type refrigeration unit is pushed into place at the bottom of the display cabinet, the return air hot zone and the outlet air cold zone inside the evaporative insulation box correspond to the air outlet and the air inlet opened in the insulation layer at the lower side of the display cabinet respectively, and the fans installed on the two air outlets are sucked and blown to exchange the hot and cold air between the evaporative insulation box and the display cabinet to achieve a refrigeration and cooling effect.

[0055] The condensed water generated in the display cabinet will enter the evaporation insulation box 24 through the air outlet, and finally flow into the defrost water storage box 254 through the drain pipe 245; in addition, the water vapor in the display cabinet will also condense into water droplets when it is cold on the surface of the fin evaporator 26, and the water droplets will flow downward into the evaporation insulation box 24 after being collected, and finally flow into the defrost water storage box 254 through the drain pipe 245. In addition, there will be water droplets that stay on the surface of the fin evaporator 26 for a long time and condense into frost. At this time, according to the preset program, the compressor, that is, the corresponding refrigeration equipment, will be suspended, the temperature of the fin evaporator will gradually increase, and then the frost will fall into the evaporation insulation box 24, and finally flow into the defrost water storage box 254. During the operation of the refrigeration component, the heat generated enters the defrost water storage box 254 through the defrost water evaporation pipe 255, promoting water evaporation and preventing overflow.

[0056] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. An integral drawer-type refrigeration unit structure for an air-cooled vertical display cabinet, characterized in that: It includes a bottom plate, which is slidably connected to the bottom of the display cabinet; an evaporative insulation box, which is arranged on the bottom plate; a fin evaporator, which is arranged in the evaporative insulation box; wherein a defrost water storage box is arranged on the bottom plate below the outer side of the evaporative insulation box; and a drainage pipe with its end located in the defrost water storage box is arranged at the bottom of the evaporative insulation box.

2. The integral drawer-type refrigeration unit structure of an air-cooled vertical display cabinet according to claim 1, characterized in that: A sliding cavity slidably connected to the bottom plate is formed at the lower rear part of the display cabinet; two air vents connected to the interior of the display cabinet are formed on the upper inner wall of the sliding cavity; fans are respectively arranged in the two air vents; the upper end of the evaporation and insulation box is open; the fin evaporator is installed at the central position of the opening; the fin evaporator divides the internal space of the evaporation and insulation box into two cavities; the two cavities are respectively connected to the air vents; and the two fans rotate in opposite directions.

3. The integral drawer-type refrigeration unit structure of an air-cooled vertical display cabinet according to claim 2, characterized in that: The front end of the lower wall of the sliding cavity is provided with an inclined lifting slope; the rear end of the lower wall of the sliding cavity is provided with a positioning groove arranged along the left and right directions; the rear end of the bottom plate is rotatably connected with a plurality of positioning screws for inserting into the positioning grooves.

4. The integral drawer-type refrigeration unit structure of an air-cooled vertical display cabinet according to claim 2, characterized in that: An annular groove is formed at the upper end of the evaporation insulation box, located outside the two air outlets; a box opening sealing ring is arranged in the groove; a sealing sponge is arranged at the upper end of the fin evaporator; the sealing sponge is flush with the upper end of the box opening sealing ring.

5. The integral drawer-type refrigeration unit structure of an air-cooled vertical display cabinet according to claim 1, characterized in that: A waist-shaped opening is formed on the bottom plate near the rear end.

6. An integrated drawer-type refrigeration unit structure of an air-cooled vertical display cabinet according to any one of claims 1 to 5, characterized in that: A condenser is installed at the upper end of the base plate; a compressor is installed at the upper end of the base plate; the upper end of the defrost water storage box is open; a defrost water evaporation tube is arranged in the defrost water storage box; one end of the defrost water evaporation tube is connected to the air inlet of the condenser, and the other end is connected to the exhaust port of the compressor.

7. The integral drawer-type refrigeration unit structure of an air-cooled vertical display cabinet according to claim 6, characterized in that: A heat dissipation fan is arranged between the condenser and the compressor; the rotation direction of the heat dissipation fan causes air to flow from the condenser to the compressor.

8. The integral drawer-type refrigeration unit structure of an air-cooled vertical display cabinet according to claim 6, characterized in that: The air outlet of the condenser is provided with a drying filter; the bottom plate is provided with a capillary tube; one end of the capillary tube is connected with the narrow end of the drying filter, and the other end is connected with the air inlet of the fin evaporator.

9. The integral drawer-type refrigeration unit structure of an air-cooled vertical display cabinet according to claim 8, characterized in that: An air return pipe is arranged on the bottom plate; one end of the air return pipe is communicated with the air outlet of the fin evaporator, and the other end of the air return pipe is communicated with the air intake of the compressor.

10. The integral drawer-type refrigeration unit structure of an air-cooled vertical display cabinet according to claim 9, characterized in that: The middle section of the capillary tube is tightly wound around the middle section of the air return pipe; the outer peripheries of the wound sections are covered with a heat shrink tube.

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