Energy-saving open air curtain cabinet

Abstract

The utility model relates to refrigeration display equipment technical field especially relates to an energy -conserving open type air curtain cabinet, including the body, the front end of body is provided with the placing cavity, is provided with the mounting groove in the placing cavity in -body top -end close, install a plurality of load plates for placing article in the placing cavity, the top of load board is provided with a plurality of air holes for aeration, the output of spiral fin evaporimeter for reducing airflow humidity is equipped in the mounting groove, the output of spiral fin evaporimeter is fixedly connected with the tee bend, the output of tee bend is fixedly connected with refrigeration evaporimeter and air supply cavity for refrigeration respectively, the airflow introduced through the air blower is handled first through spiral fin evaporimeter, avoid high temperature and high humidity airflow to directly impact refrigeration evaporimeter, reduce frost and ice block risk, simultaneously, the airflow of air supply cavity output cooperates with arc fairing through air curtain jet head, avoid refrigeration evaporimeter working condition to deteriorate, break vicious circle, ensure that the long -term efficient and stable operation of equipment, improve the operation stability of equipment.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration display equipment technology, and in particular to an energy-saving open-type air curtain cabinet. Background Technology

[0002] As users demand more diverse product quality, appearance, energy efficiency, and other requirements, especially for products with limited space, low energy consumption, and intuitive display, there is a growing need to embed display cabinets into existing cabinets or equipment. This segment of the market offers significant economic benefits.

[0003] In existing devices, high-temperature and high-humidity air directly impacts the low-temperature evaporator, which can quickly cause frost or even ice blockage, severely hindering air circulation and heat exchange efficiency. This forces the equipment to frequently use electric defrosting, resulting in a decrease in cooling efficiency and operational reliability. In addition, to compensate for the loss of cold air caused by the turbulent airflow, the system often needs to further reduce the outlet air temperature, which causes the evaporator's working conditions to continue to deteriorate. This leads to a vicious cycle of frost formation, decreased efficiency, increased energy consumption, and finally, more frost formation, ultimately resulting in long-term low energy efficiency, frequent maintenance, and insufficient operational stability of the equipment. Utility Model Content

[0004] In view of the above-mentioned energy-saving issues, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an energy-saving open air curtain cabinet, including a body, a placement cavity at the front end of the body, an installation groove near the top of the body in the placement cavity, multiple support plates for placing items installed in the placement cavity, multiple ventilation holes for ventilation at the top of the support plates, a spiral fin evaporator for reducing airflow humidity in the installation groove, a three-way pipe fixedly connected to the output end of the spiral fin evaporator, a refrigeration evaporator for cooling and an air supply cavity fixedly connected to the output end of the three-way pipe respectively, the air supply cavity being located at the front end of the refrigeration evaporator, an arc-shaped guide plate for guiding the air curtain fixedly connected to the front end of the body, and a return cavity communicating with the placement cavity on the inner wall of the body.

[0006] As a preferred embodiment of the energy-saving open air curtain cabinet of this utility model, the bottom end of the refrigeration evaporator is fixedly connected with multiple refrigeration jet heads for blowing air, the bottom end of the air supply cavity is fixedly connected with multiple air curtain jet heads for forming an air curtain, and the output end of the air curtain jet head is aligned with the end of the arc-shaped guide plate near the placement cavity.

[0007] As a preferred embodiment of the present invention, an energy-saving open-type air curtain cabinet is provided, wherein: a grille for ventilation is fixedly connected to the side of the reflux chamber near the bottom of the placement chamber; a circulating fan for conveying airflow is fixedly installed inside the reflux chamber; an induced draft fan is fixedly connected to the rear end of the unit; and the output end of the induced draft fan is fixedly connected to the input end of the spiral fin evaporator.

[0008] As a preferred embodiment of the present invention, an energy-saving open-type air curtain cabinet is provided, wherein: the top of the body is provided with a plurality of heat dissipation holes communicating with the mounting groove, and the placement cavity is provided with a plurality of return flow holes communicating with the return flow cavity away from the front end of the body.

[0009] As a preferred embodiment of the present invention, an energy-saving open-type air curtain cabinet is provided, wherein: a plurality of fixed seats corresponding one-to-one with the support plate are fixedly connected inside the placement cavity; a straight through hole communicating with the air vent is provided inside the return cavity; and a plurality of casters in contact with the ground are fixedly connected to the bottom of the unit.

[0010] As a preferred embodiment of the present invention, an energy-saving open-type air curtain cabinet is provided, wherein: the support plate is slidably connected to the fixed base, a handle is fixedly connected to the front end of the support plate, and two cooperating magnets are provided between the end of the support plate away from the handle and the inner wall of the placement cavity, and the two magnets are fixedly connected to the surface of the placement cavity and the support plate respectively.

[0011] The beneficial effects of this utility model are: The airflow introduced by the induced draft fan is first processed by the spiral evaporator, avoiding direct impact of high-temperature and high-humidity airflow on the evaporator, reducing the risk of frost and ice blockage, ensuring air circulation and heat exchange efficiency, eliminating the need for frequent use of electric defrosting, and improving refrigeration efficiency and operational reliability. At the same time, the airflow output from the air supply cavity forms a stable air curtain at the front end of the placement cavity through the cooperation of the air curtain jet head and the arc-shaped guide plate, reducing the loss of cold air. There is no need to lower the outlet air temperature to compensate for the loss of cold air, avoiding the deterioration of the working conditions of the evaporator, breaking the vicious cycle, ensuring long-term efficient and stable operation of the equipment, reducing the frequency of equipment maintenance, and improving the operational stability of the equipment. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the spiral fin evaporator structure of this utility model.

[0015] Figure 4 This is a schematic diagram of the overall structure of the bearing plate of this utility model.

[0016] Figure 5 for Figure 2 Enlarged structural diagram at point A in the middle.

[0017] Explanation of reference numerals in the attached drawings: 1. Body; 2. Placement cavity; 3. Support plate; 4. Vent hole; 5. Mounting slot; 6. Spiral fin evaporator; 7. T-pipe; 8. Refrigeration evaporator; 9. Refrigeration jet nozzle; 10. Air supply cavity; 11. Air curtain jet nozzle; 12. Arc-shaped guide plate; 13. Exhaust fan; 14. Return cavity; 15. Grille; 16. Circulating fan; 17. Return flow hole; 18. Mounting base; 19. Magnet; 20. Handle; 21. Caster wheel; 22. Heat dissipation hole. Detailed Implementation

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example

[0019] Reference Figures 1-3 This is the first embodiment of the present invention, which provides an energy-saving open-type air curtain cabinet, including a body 1. The front end of the body 1 has a placement cavity 2. The placement cavity 2 has an installation groove 5 near the top of the body 1. Multiple support plates 3 for placing items are installed in the placement cavity 2. Multiple ventilation holes 4 for ventilation are opened at the top of the support plates 3. The installation groove 5 has a spiral fin evaporator 6 for reducing the humidity of the airflow. The output end of the spiral fin evaporator 6 is fixedly connected to a three-way pipe 7. The output end of the three-way pipe 7 is fixedly connected to a refrigeration evaporator 8 for refrigeration and an air supply cavity 10. The air supply cavity 10 is located at the front end of the refrigeration evaporator 8. An arc-shaped guide plate 12 for guiding the air curtain is fixedly connected to the front end of the body 1. The inner wall of the body 1 has a return cavity 14 that communicates with the placement cavity 2.

[0020] Multiple cooling jet heads 9 for blowing air are fixedly connected to the bottom end of the refrigeration evaporator 8, and multiple air curtain jet heads 11 for forming an air curtain are fixedly connected to the bottom end of the air supply cavity 10. The output end of the air curtain jet head 11 is aligned with the end of the arc-shaped guide plate 12 near the placement cavity 2.

[0021] A ventilated grille 15 is fixedly connected to the side of the reflux chamber 14 near the bottom of the placement chamber 2. A circulating fan 16 for conveying airflow is fixedly installed inside the reflux chamber 14. An induced draft fan 13 is fixedly connected to the rear end of the body 1. The output end of the induced draft fan 13 is fixedly connected to the input end of the spiral fin evaporator 6.

[0022] During use, turn on the exhaust fan 13 at the rear of the unit 1. The exhaust fan 13 draws in the airflow from the external environment and delivers it to the input end of the spiral fin evaporator 6 in the mounting slot 5 at the top of the placement chamber 2. The surface temperature of the spiral fin evaporator 6 is controlled above the freezing point of water. Its spiral fin structure can increase the contact area with the airflow and at the same time create disturbance to the airflow. This not only prevents water vapor from staying on the pipe wall for a long time and condensing into ice, but also effectively reduces the humidity of the airflow, reducing the risk of ice blockage in the subsequent cooling process. In addition, the small amount of heat generated by the spiral fin evaporator 6 can be discharged through the heat dissipation hole 22 at the top of the unit 1 to avoid heat accumulation affecting the dehumidification effect.

[0023] After being dehumidified by the spiral fin evaporator 6, the airflow is divided into two paths through the three-way pipe 7 at its output end. One path of the airflow enters the refrigeration evaporator 8, where heat exchange is completed and the air is converted into cold air. The cold air is then sprayed downwards through multiple refrigeration nozzles 9 at the bottom of the refrigeration evaporator 8, directly acting on the items in the placement chamber 2 to achieve preliminary cooling.

[0024] Another airflow is delivered to the air supply cavity 10. The airflow is ejected from the air curtain jet head 11 at the bottom of the air supply cavity 10. The output end of the air curtain jet head 11 is precisely aligned with the arc-shaped guide plate 12 at the front end of the body 1. After the airflow hits the arc-shaped guide plate 12, it spreads downward along the inclined direction of the guide plate, forming a complete air curtain at the front opening of the placement cavity 2. This prevents the cold air in the placement cavity 2 from escaping outward and avoids a large amount of external hot airflow from entering, thus ensuring a stable low-temperature environment inside the cabinet.

[0025] The cold air ejected from the cooling nozzle 9 cools the items in the placement chamber 2 and then flows towards the bottom of the placement chamber 2. Finally, it enters the return chamber 14 through the grille 15 near the return chamber 14 at the bottom of the placement chamber 2. At this time, the circulating fan 16 in the return chamber 14 is turned on. The circulating fan 16 drives the airflow in the return chamber 14. Part of the airflow re-enters the placement chamber 2 through the return flow hole 17 away from the front end of the placement chamber 2, and the other part is transported upward to the vent hole 4 at the top of the support plate 3 through the straight hole in the fixing seat 18. When the airflow overflows from the vent hole 4, it can perform secondary cooling on the items placed on the support plate 3, ensuring that the temperature of each layer of items is uniform, while realizing the circulation of airflow and reducing the waste of cold energy. Example

[0026] Reference Figures 1-5 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: the top of the body 1 is provided with a plurality of heat dissipation holes 22 that communicate with the mounting groove 5, and the placement cavity 2 is provided with a plurality of return flow holes 17 that communicate with the return flow cavity 14 away from the front end of the body 1.

[0027] The placement cavity 2 is fixedly connected with multiple fixed seats 18 that correspond one-to-one with the support plate 3. The return cavity 14 is provided with a straight through hole that passes through the fixed seat 18 and communicates with the vent hole 4. The bottom of the body 1 is fixedly connected with multiple casters 21 that are in contact with the ground.

[0028] The support plate 3 is slidably connected to the fixed base 18. A handle 20 is fixedly connected to the front end of the support plate 3. Two magnets 19 are provided between the end of the support plate 3 away from the handle 20 and the inner wall of the placement cavity 2. The two magnets 19 are fixedly connected to the surfaces of the placement cavity 2 and the support plate 3 respectively.

[0029] During use, when installing the support plate 3, hold the handle 20 at the front end of the support plate 3, align the support plate 3 with the corresponding fixing seat 18 in the placement cavity 2, and push the handle 20 to slide the support plate 3 along the slide rail of the fixing seat 18. As the support plate 3 gradually goes deeper into the placement cavity 2, the magnet 19 at the end away from the handle 20 will attract and stick to the corresponding magnet 19 on the inner wall of the placement cavity 2. The attraction force of the magnet 19 can fix the position of the support plate 3, prevent the support plate 3 from sliding and shifting during the operation of the equipment, and at the same time ensure that the support plate 3 is completely aligned with the through hole in the fixing seat 18, so that the airflow in the return cavity 14 can smoothly pass through the through hole and connect with the vent hole 4 without affecting the secondary cooling effect.

[0030] When it is necessary to clean the support plate 3 or change the placed items, pull the handle 20 outward. The pulling force overcomes the attraction force of the two magnets 19, and drives the support plate 3 to slide outward along the slide rail of the fixed seat 18 until the support plate 3 is completely separated from the fixed seat 18. At this time, the surface of the support plate 3 can be cleaned directly, or a suitable support plate 3 can be replaced according to the size of the item. After cleaning, repeat the installation steps to push the support plate 3 back to its original position, and the magnets 19 will re-attach and fix it. The whole process does not require tool disassembly, and the operation is simple. At the same time, it avoids damage to the parts due to frequent disassembly and assembly, and ensures long-term stable use of the equipment.

[0031] If the placement of the air curtain cabinet needs to be adjusted, the universal wheels 21 at the bottom of the unit 1 can be used to move the equipment. The rolling structure of the universal wheels 21 reduces the resistance to movement, making it easy to flexibly adjust the layout in supermarkets, convenience stores and other scenarios.

[0032] The remaining structure is the same as that in Example 1.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An energy-saving open-type air curtain cabinet, comprising a body (1), wherein a placement cavity (2) is provided at the front end of the body (1), and an installation groove (5) is provided in the placement cavity (2) near the top of the body (1), characterized in that: The placement cavity (2) is equipped with multiple support plates (3) for placing items. Multiple ventilation holes (4) for ventilation are opened at the top of the support plate (3). The mounting groove (5) is equipped with a spiral fin evaporator (6) for reducing airflow humidity. A three-way pipe (7) is fixedly connected to the output end of the spiral fin evaporator (6). A refrigeration evaporator (8) for refrigeration and an air supply cavity (10) are fixedly connected to the output end of the three-way pipe (7). The air supply cavity (10) is located at the front end of the refrigeration evaporator (8). An arc-shaped guide plate (12) for guiding the air curtain is fixedly connected to the front end of the body (1). A return cavity (14) communicating with the placement cavity (2) is opened on the inner wall of the body (1).

2. The energy-saving open-type air curtain cabinet according to claim 1, characterized in that: The bottom end of the refrigeration evaporator (8) is fixedly connected to a plurality of refrigeration jet heads (9) for blowing air, and the bottom end of the air supply cavity (10) is fixedly connected to a plurality of air curtain jet heads (11) for forming an air curtain. The output end of the air curtain jet head (11) is aligned with the end of the arc-shaped guide plate (12) near the placement cavity (2).

3. The energy-saving open-type air curtain cabinet according to claim 1, characterized in that: A ventilated grille (15) is fixedly connected to the side of the reflux chamber (14) near the bottom of the placement chamber (2). A circulating fan (16) for conveying airflow is fixedly installed inside the reflux chamber (14). An induced draft fan (13) is fixedly connected to the rear end of the body (1). The output end of the induced draft fan (13) is fixedly connected to the input end of the spiral fin evaporator (6).

4. The energy-saving open-type air curtain cabinet according to claim 1, characterized in that: The top of the body (1) is provided with a plurality of heat dissipation holes (22) that communicate with the mounting groove (5), and the front end of the placement cavity (2) away from the body (1) is provided with a plurality of return flow holes (17) that communicate with the return flow cavity (14).

5. The energy-saving open-type air curtain cabinet according to claim 1, characterized in that: The placement cavity (2) is fixedly connected with a number of fixed seats (18) corresponding one-to-one with the support plate (3). The return cavity (14) is provided with a through hole that passes through the fixed seat (18) and communicates with the vent hole (4). The bottom of the body (1) is fixedly connected with a number of universal wheels (21) that are in contact with the ground.

6. The energy-saving open-type air curtain cabinet according to claim 5, characterized in that: The support plate (3) is slidably connected to the fixed seat (18). A handle (20) is fixedly connected to the front end of the support plate (3). Two magnets (19) are provided between the end of the support plate (3) away from the handle (20) and the inner wall of the placement cavity (2). The two magnets (19) are fixedly connected to the surfaces of the placement cavity (2) and the support plate (3) respectively.

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