Air-cooled four-door cabinet

Abstract

The utility model provides a kind of air-cooled four-door cabinet, including air-cooled cabinet body, air-cooled cabinet body rear wall middle part is equipped with right-angle air duct square tube, first exhaust fan is installed in the inside of right-angle air duct square tube horizontal end, air-cooled cabinet body is equipped with freezing chamber and refrigeration chamber from top to bottom inside, the inside wall of freezing chamber is symmetrically equipped with air inlet round mouth, the inside wall of refrigeration chamber is symmetrically equipped with air outlet round mouth, two air outlet round mouths are located two air inlet round mouths directly below respectively, air-cooled cabinet body rear wall is symmetrically equipped with circular air duct, two circular air ducts upper end are all communicated with two air inlet round mouths, two circular air ducts lower end are all communicated with two air outlet round mouths, second exhaust fan is installed in the inside of two air inlet round mouths respectively, air-cooled cabinet body is equipped with evaporator in upper portion inside, right-angle air duct square tube is communicated with the side air inlet round mouth of evaporator, the utility model structure is reasonable, and practicality is good, cold air is recycled, avoid waste, save the lower additional evaporator and pipeline, greatly reduce manufacturing cost.

Description

Technical Field

[0001] This utility model is an air-cooled four-door cabinet, belonging to the field of refrigeration equipment technology. Background Technology

[0002] Air-cooled cabinets, as a common refrigeration device, are widely used in homes, businesses, and other settings. Traditional air-cooled cabinets are usually divided into two compartments based on storage temperature requirements: an upper freezer compartment and a lower refrigerator compartment.

[0003] However, traditional refrigeration equipment usually lacks an effective return air path, resulting in poor circulation of cold air in the lower layer, large temperature fluctuations, and high energy consumption. There is an urgent need for an air-cooled four-door cabinet to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an air-cooled four-door cabinet to solve the problems mentioned in the background technology. This utility model has a reasonable structure, good practicality, and the cold air is recycled to avoid waste. It also eliminates the need for an additional evaporator and piping in the lower layer, which greatly reduces the manufacturing cost.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a four-door air-cooled cabinet, including an air-cooled cabinet body, a right-angled square air duct installed in the middle of the rear wall of the air-cooled cabinet body, a first exhaust fan installed inside the horizontal end of the right-angled square air duct, a freezer chamber and a refrigerator chamber arranged from top to bottom inside the air-cooled cabinet body, symmetrically arranged air inlets on the inner wall of the freezer chamber, symmetrically arranged air outlets on the inner wall of the refrigerator chamber, two air outlets located directly below the two air inlets, symmetrically arranged circular air ducts on the rear wall of the air-cooled cabinet body, the upper ends of the two circular air ducts communicating with the two air inlets, the lower ends of the two circular air ducts communicating with the two air outlets, a second exhaust fan installed inside the two air inlets, an evaporator arranged at the top inside the air-cooled cabinet body, and the right-angled square air duct communicating with the side air inlet of the evaporator.

[0006] Furthermore, a compressor and a condenser are installed on top of the air-cooled cabinet.

[0007] Furthermore, a circular grille plate is fixed to the front end of each of the two air inlets and the front end of each of the two air outlets.

[0008] Furthermore, a square grid plate is fixed to the front side of the horizontal end of the right-angle air duct square tube.

[0009] Furthermore, the front side of the right-angled air duct square tube is provided with multiple waist-shaped air inlets.

[0010] Furthermore, the air-cooled cabinet has multiple door panels hinged to the front side, and a grille protective cover fitted onto the outside of the compressor and condenser is installed on the top of the air-cooled cabinet.

[0011] The beneficial effects of this utility model are as follows: This utility model provides a four-door air-cooled cabinet. Because it adds an air-cooled cabinet body, compressor, door panel, evaporator, right-angle air duct square tube, square grille, round grille, first exhaust fan, circular air duct, second exhaust fan, air inlet round port, air outlet round port, freezer chamber and refrigerator chamber, our design improvements and actual use have shown that this device has a reasonable structure, good practicality, and the cold air is recycled, avoiding waste. It also eliminates the need for an additional evaporator and piping in the lower layer, greatly reducing manufacturing costs. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a wind-cooled four-door cabinet according to the present invention;

[0014] Figure 2 This is a three-dimensional schematic diagram of the internal structure of the air-cooled four-door cabinet according to the present invention.

[0015] Figure 3 This is a three-dimensional schematic diagram of the cross-sectional structure of a right-angled square tube air duct of a four-door air-cooled cabinet according to the present invention.

[0016] Figure 4 This is a three-dimensional sectional view of the air-cooled cabinet body of the present invention, which is a first-view cross-sectional structure of the air-cooled four-door cabinet.

[0017] Figure 5 This is a three-dimensional sectional view of the air-cooled cabinet body of the present invention, which is a cross-sectional structural diagram of the air-cooled four-door cabinet.

[0018] Figure 6 This is a front view structural diagram of the air-cooled cabinet body of the present invention, which is a four-door air-cooled cabinet.

[0019] In the diagram: 1-Air-cooled cabinet, 2-Compressor, 3-Door panel, 4-Evaporator, 5-Right-angled square air duct, 6-Square grille, 7-Grill protective cover, 8-Round grille, 9-First exhaust fan, 10-Oval air inlet, 11-Round air duct, 12-Second exhaust fan, 13-Round air inlet, 14-Round air outlet, 15-Freezer chamber, 16-Refrigerator chamber. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please see Figures 1-6 This utility model provides a technical solution: a four-door air-cooled cabinet, including an air-cooled cabinet body 1. A right-angled square air duct 5 is installed in the middle of the rear wall of the air-cooled cabinet body 1. A first exhaust fan 9 is installed inside the horizontal end of the right-angled square air duct 5. The air-cooled cabinet body 1 has a freezer chamber 15 and a refrigerator chamber 16 arranged from top to bottom. The inner wall of the freezer chamber 15 has symmetrically arranged air inlets 13, and the inner wall of the refrigerator chamber 16 has symmetrically arranged air outlets 14. The two air outlets 14 are located directly below the two air inlets 13. The rear wall is symmetrically provided with circular air ducts 11. The upper ends of the two circular air ducts 11 are connected to the two air inlets 13, and the lower ends of the two circular air ducts 11 are connected to the two air outlets 14. The two air inlets 13 are respectively equipped with second exhaust fans 12. The evaporator 4 is provided on the upper part of the air-cooled cabinet 1. The right-angle air duct square tube 5 is connected to the side air inlet of the evaporator 4. This design solves the problem that traditional refrigeration equipment usually lacks an effective return air path, resulting in poor circulation of cold air in the lower layer, large temperature fluctuations and high energy consumption.

[0022] As the first embodiment of this utility model: a compressor 2 and a condenser are installed on the top of the air-cooled cabinet 1. The unused space at the top of the air-cooled cabinet 1 is utilized, and the heat-generating compressor 2 and condenser are placed at the top, which is conducive to their natural heat dissipation, conforms to the principle of hot air rising, avoids temperature interference with the refrigeration and freezing spaces below, and is also convenient for maintenance.

[0023] Circular grille plates 8 are fixed to the front ends of the two air inlets 13 and the two air outlets 14. The circular grille plates 8 primarily serve a safety protection function, effectively preventing users' fingers or other foreign objects from entering the high-speed rotating second exhaust fan 12 or the circular air duct 11, thus avoiding personal injury and equipment damage. Secondly, they can streamline and diffuse the airflow, making the blown cold air softer and more uniform, preventing direct blowing on items and causing localized overcooling or drying. They also block large dust particles from entering the circular air duct system. A square grille plate 6 is fixed to the front side of the horizontal end of the right-angle air duct square tube 5. The main function of the square grille plate 6 is safety protection, preventing foreign objects from being sucked into the horizontal end inlet of the right-angle air duct square tube 5 and contacting the first exhaust fan 9, ensuring safe operation.

[0024] The front of the right-angled square tube 5 is equipped with multiple waist-shaped air inlets 10. These waist-shaped air inlets 10 serve as auxiliary air inlets, increasing the total air intake of the system. When the main inlet at the horizontal end of the right-angled square tube 5 experiences airflow obstruction, the waist-shaped air inlets 10 ensure that the first exhaust fan 9 still has sufficient air intake, preventing the fan from "idling" or "locking up," thus protecting the motor and stabilizing system operation. Furthermore, it helps to introduce air from different areas for mixing, optimizing airflow organization. The front of the air-cooled cabinet 1 is hinged with multiple door panels 3. A grille protective cover is installed on top of the air-cooled cabinet 1, fitted onto the outside of the compressor 2 and condenser. Having multiple independent door panels 3 on the air-cooled cabinet 1 offers the advantage of flexible opening compared to two large doors; only the smaller area needed for storage or retrieval needs to be opened each time, effectively reducing cold air leakage and saving energy. The grille protective cover 7 provides a certain degree of protection for the compressor 2 and condenser.

[0025] As a second embodiment of this utility model: When the equipment is powered on and started, the compressor 2 installed above the air-cooled cabinet 1 starts to run, discharging the high-temperature and high-pressure gaseous refrigerant into the condenser to complete heat dissipation and liquefaction. After the liquefied refrigerant is depressurized by the throttling device, it enters the evaporator 4 to evaporate and absorb heat. The fan on the front side of the evaporator 4 can blow out the cooled air, so that the cold air fills the freezing chamber 15. At the same time, the second exhaust fan 12 installed in the air inlet 13 starts synchronously. The cooled air around the evaporator 4 is drawn into the circular air duct 11 through the air inlets 13 on both sides of the freezing chamber 15 by the action of the second exhaust fan 12, and is transported downward along the rear wall of the air-cooled cabinet 1, and finally blown out evenly through the air outlet 14 on the wall of the refrigeration chamber 16 (the circular grille plate 8 at the outlet plays a role in even distribution). The air, after undergoing heat exchange and temperature rise in the refrigeration chamber 16, is cooled by the airflow. The first exhaust fan 9, located at the horizontal end of the right-angle air duct square tube 5, is activated. Under the suction of the first exhaust fan 9, the air enters the right-angle air duct square tube 5 through the square grille plate 6 on the front side of the horizontal end of the right-angle air duct square tube 5 and the waist-shaped air inlet 10 on the tube wall (which also serves as a protective and auxiliary air inlet). After rising along the vertical section, the air returns to the side air inlet of the evaporator 4, mixes with the air in the freezing chamber 15, and flows through the evaporator 4 again for cooling. This forms a continuous closed air circulation system of "cooling-forced downward-active back-cooling", achieving efficient and uniform cooling of both upper and lower temperature zones by relying on a single evaporator 4.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A four-door air-cooled cabinet, comprising an air-cooled cabinet body (1), characterized in that: A right-angle air duct square tube (5) is installed in the middle of the rear wall of the air-cooled cabinet (1). A first exhaust fan (9) is installed inside the horizontal end of the right-angle air duct square tube (5). The air-cooled cabinet (1) has a freezing chamber (15) and a refrigeration chamber (16) arranged from top to bottom. The inner wall of the freezing chamber (15) is symmetrically provided with air inlets (13), and the inner wall of the refrigeration chamber (16) is symmetrically provided with air outlets (14). The two air outlets (14) are located directly below the two air inlets (13). The rear wall of the air-cooled cabinet (1) is symmetrically provided with circular air ducts (11). The upper ends of the two circular air ducts (11) are connected to the two air inlets (13), and the lower ends of the two circular air ducts (11) are connected to the two air outlets (14). The two air inlets (13) are respectively equipped with second exhaust fans (12). An evaporator (4) is provided above the interior of the air-cooled cabinet (1). The right-angle air duct square tube (5) is connected to the side air inlet of the evaporator (4).

2. The air-cooled four-door cabinet according to claim 1, characterized in that: The compressor (2) and condenser are installed on top of the air-cooled cabinet (1).

3. A four-door air-cooled cabinet according to claim 1, characterized in that: A circular grille plate (8) is fixed to the front end of each of the two air inlets (13) and the two air outlets (14).

4. A four-door air-cooled cabinet according to claim 1, characterized in that: A square grid plate (6) is fixed to the front side of the horizontal end of the right-angle air duct square tube (5).

5. A four-door air-cooled cabinet according to claim 4, characterized in that: The right-angled air duct square tube (5) has multiple waist-shaped air inlets (10) on its front side.

6. A four-door air-cooled cabinet according to claim 1, characterized in that: The air-cooled cabinet (1) has multiple door panels (3) hinged to the front side, and a grille protective cover (7) is installed on the top of the air-cooled cabinet (1) and sleeved on the outside of the compressor (2) and the condenser.

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