Air curtain machine with cold air

Abstract

The utility model discloses an air curtain machine with cold air, which is arranged above a doorway and comprises an air conditioner and a reducing air pipe of the air conditioner. An air outlet of the air conditioner is formed in the bottom of the air conditioner; the projection, on the bottom of the air conditioner, of a top inlet of the variable-diameter air pipe surrounds the whole air outlet, and the top inlet of the variable-diameter air pipe communicates with the air outlet of the air conditioner. The size of a bottom outlet of the variable-diameter air pipe corresponds to the size of the doorway, and the bottom outlet of the variable-diameter air pipe faces the doorway; and the variable-diameter air pipe is gradually transited from the top inlet shape to the bottom outlet shape. The device can adapt to doors with different sizes, only the size of the variable-diameter air pipe needs to be changed, the whole device does not need to be redesigned, the application flexibility is improved, and the manufacturing cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of air curtain machine technology, and in particular to an air curtain machine with cooling. Background Technology

[0002] Air curtain machines are typically installed at the entrances of large spaces such as shopping malls, workshops, and warehouses. Their function is to create a certain airflow at the entrance, providing a comfortable experience for people entering and exiting, while reducing the outflow of cool indoor air to the outside.

[0003] Existing technology 202223541509.6 discloses a circulating cold storage door overflow prevention air curtain machine, which is a common existing air curtain machine structure. 202311021769.7 discloses a dust removal device for an explosion-proof air curtain, whose air curtain has a cooling function and outputs cold air. However, both of these air curtain machines require the air curtain size to be basically consistent with the door width during design. When they are inconsistent, the cold air output is not comprehensive or waste is caused. In addition, the latter has relatively high power consumption due to the cooling of the compressor, and both use centrifugal cross-flow fans with relatively small air volume. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an air curtain machine with cooling air that can handle doors of different sizes without redesigning the entire device.

[0005] To solve the above-mentioned technical problems, this utility model discloses an air curtain machine with air conditioning, which is installed above the doorway and includes an air conditioner and its variable diameter duct.

[0006] The air outlet of the air conditioner is located at its bottom; the projection of the top inlet of the variable diameter duct on the bottom of the air conditioner surrounds the entire air outlet, and the top inlet of the variable diameter duct is connected to the air outlet of the air conditioner.

[0007] The size of the bottom outlet of the variable diameter duct corresponds to the size of the doorway, and the bottom outlet of the variable diameter duct faces the doorway; the shape of the variable diameter duct gradually transitions from the top inlet to the bottom outlet.

[0008] As an optional implementation, the air conditioner uses an axial flow fan.

[0009] As another alternative implementation, the air conditioner is an evaporative air conditioner with a cooling function.

[0010] As another optional implementation, the bottom outlet of the variable diameter duct is rectangular in shape, the length of which is the same as the width of the doorway, and the width of which is 10-200mm.

[0011] As another alternative implementation, the top inlet of the variable diameter duct is shaped as a closed curve or a polygon.

[0012] As another optional implementation, the bottom outlet of the variable diameter duct is provided with louvers to guide air and make the airflow uniform.

[0013] As another optional implementation, the number of air conditioners and their variable diameter ducts is two, the variable diameter ducts of the two air conditioners are arranged side by side, and the sum of the widths of the bottom outlets of the two variable diameter ducts is the same as the width of the doorway.

[0014] As another optional implementation, there are multiple air conditioners and their variable diameter ducts, with each air conditioner's variable diameter duct arranged side by side, and the sum of the widths of the bottom outlets of all the variable diameter ducts being the same as the width of the doorway.

[0015] Compared with the prior art, the embodiments of this utility model have the following beneficial effects:

[0016] The variable-diameter duct of this embodiment gradually transitions from the shape of the top inlet to the shape of the bottom outlet, thus guiding the airflow from the cooler outlet toward the doorway. Since the size of the bottom outlet of the variable-diameter duct corresponds to the size of the doorway, the air curtain machine of this embodiment can accommodate doors of different sizes. Only the size of the variable-diameter duct needs to be changed without redesigning the entire device, which improves application flexibility and reduces manufacturing costs. In addition, this embodiment uses a cooler with lower power consumption, which consumes less power than a compressor refrigeration device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in 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.

[0018] Figure 1 This is a schematic diagram of the structure of an air curtain machine with cooling air disclosed in an embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of a variable diameter air duct in an air curtain machine with cooling system disclosed in this embodiment of the present invention;

[0020] Figure 3 This is a left-side view of the variable-diameter duct structure in an air curtain machine with cooling system disclosed in this embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of a cooling fan in an air curtain machine with cooling air disclosed in an embodiment of this utility model. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] See Figures 1-4 This utility model discloses an air curtain machine with air conditioning, which is installed above the doorway and includes an air conditioner 1 and its variable diameter air duct 2.

[0024] The air outlet 11 of the air conditioner 1 is located at its bottom; the projection of the top inlet of the variable diameter duct 2 on the bottom of the air conditioner 1 surrounds the entire air outlet 11, and the top inlet of the variable diameter duct 2 is connected to the air outlet 11 of the air conditioner 1.

[0025] The size of the bottom outlet of the variable diameter duct 2 corresponds to the size of the doorway, and the bottom outlet of the variable diameter duct 2 faces the doorway; the shape of the variable diameter duct 2 gradually transitions from the shape of the top inlet to the shape of the bottom outlet.

[0026] In this embodiment of the invention, the variable-diameter duct 2 gradually transitions from the shape of the top inlet to the shape of the bottom outlet, thus guiding the air from the cooler outlet toward the doorway. Since the size of the bottom outlet of the variable-diameter duct 2 corresponds to the size of the doorway, the air curtain machine of this embodiment can accommodate doors of different sizes. Only the size of the variable-diameter duct needs to be changed without redesigning the entire device, which improves application flexibility and reduces manufacturing costs. In addition, this embodiment uses a cooler with lower power consumption, which consumes less power than a compressor refrigeration device.

[0027] In an optional embodiment, the air conditioner 1 employs an axial fan 12 with a larger air volume than a centrifugal cross-flow fan, which discharges air toward an outlet 11 at the bottom outlet.

[0028] In another optional embodiment, the air conditioner 1 is an evaporative air conditioner with a cooling function.

[0029] In another optional embodiment, the bottom outlet of the variable diameter duct 2 is rectangular, with the length of the rectangle matching the width of the doorway, and the width of the rectangle being 10–200 mm. This uniform width allows the cool air from the air cooler outlet to be evenly guided towards the doorway, while the relatively small width ensures a high outlet velocity, promoting airflow.

[0030] In another optional embodiment, the top inlet of the variable diameter duct 2 is shaped as a closed curve or a polygon. The top inlet of the variable diameter duct 2 transitions to the bottom outlet through multiple planes or curved surfaces.

[0031] In another optional embodiment, the bottom outlet of the variable diameter duct 2 is provided with louvers 21 for guiding airflow to ensure uniform airflow.

[0032] In another optional embodiment, there are two air conditioners 1 and two variable diameter ducts 2, with the two variable diameter ducts 2 of the air conditioners 1 arranged side by side, and the sum of the widths of the bottom outlets of the two variable diameter ducts 2 being the same as the width of the doorway.

[0033] In another optional embodiment, there are multiple air conditioners 1 and their variable diameter ducts 2, with each air conditioner 1's variable diameter duct 2 arranged side by side, and the sum of the widths of the bottom outlets of all the variable diameter ducts 2 being the same as the width of the doorway.

[0034] The contents disclosed in this utility model embodiment are merely preferred embodiments of this utility model and are only used to illustrate the technical solutions of this utility model, not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A cold air-equipped air curtain machine installed above a doorway, characterized by, Including air conditioners and their variable diameter ducts; The air outlet of the air conditioner is located at its bottom; the projection of the top inlet of the variable diameter duct on the bottom of the air conditioner surrounds the entire air outlet, and the top inlet of the variable diameter duct is connected to the air outlet of the air conditioner. The size of the bottom outlet of the variable diameter duct corresponds to the size of the doorway, and the bottom outlet of the variable diameter duct faces the doorway; the shape of the variable diameter duct gradually transitions from the top inlet to the bottom outlet.

2. The air curtain machine according to claim 1, characterized in that The air conditioner uses an axial flow fan.

3. The air curtain machine according to claim 1, characterized in that The air conditioner is an evaporative air conditioner with a cooling function.

4. The curtain air machine according to claim 1, characterized in that, The bottom outlet of the variable diameter duct is rectangular in shape, with the length of the rectangle matching the width of the doorway, and the width of the rectangle being 10–200 mm.

5. The curtain air machine according to claim 1, characterized in that, The top inlet of the variable diameter duct is a closed curve or a polygon.

6. The curtain air machine according to claim 1, characterized in that, The bottom outlet of the variable diameter duct is equipped with louvers to guide air and ensure uniform airflow.

7. The curtain air machine according to claim 1, characterized in that, The number of air conditioners and their variable diameter ducts is two. The variable diameter ducts of the two air conditioners are arranged side by side, and the sum of the widths of the bottom outlets of the two variable diameter ducts is the same as the width of the doorway.

8. The air curtain machine of claim 1, wherein, There are multiple air conditioners and their variable diameter ducts. The variable diameter ducts of each air conditioner are arranged side by side, and the sum of the widths of the bottom outlets of all the variable diameter ducts is the same as the width of the doorway.

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