Air curtain cabinet with humidifying function

By combining a sensor matrix and atomizing nozzles in the air curtain cabinet, targeted humidification of the fruit and vegetable area is achieved, solving the problem of wilting caused by water loss in fruits and vegetables, extending the shelf life, and improving sales performance.

CN224166032UActive Publication Date: 2026-04-28GU XIANG REFRIGERATION EQUIP (TIANMEN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GU XIANG REFRIGERATION EQUIP (TIANMEN) CO LTD
Filing Date
2025-04-17
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing air curtain cabinets, when used for preserving fruits and vegetables, cannot effectively prevent them from wilting and drying out due to water loss by simply adjusting the temperature, thus affecting sales.

Method used

A sensor matrix and atomizing nozzles are installed on the partition of the air curtain cabinet. The sensors detect the position of fruits and vegetables and control the atomizing nozzles to spray and humidify them periodically. The controller and water pump system provide water to achieve point humidification of the fruit and vegetable area.

Benefits of technology

It effectively prevents fruits and vegetables from wilting due to water loss, extends their shelf life, and improves their sales quality.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224166032U_ABST
    Figure CN224166032U_ABST
Patent Text Reader

Abstract

The utility model provides an air curtain cabinet with a humidifying function, which comprises a cabinet body, a controller is arranged on the cabinet body, a plurality of layers of partition plates are arranged in the cabinet body, sensor matrixes are arranged on the partition plates, and the sensor matrixes are arranged along the direction perpendicular to the inner wall of the cabinet body and are respectively and electrically connected with the controller. A plurality of atomization nozzles are installed above the partition plate, the atomization nozzles are arranged on the inner wall of the cabinet body and are in one-to-one correspondence with the sensors, electromagnetic valves are arranged on the atomization nozzles, the electromagnetic valves are electrically connected with the controller, a water supply tank is arranged on one side of the cabinet body, a water pump is arranged in the water supply tank, and the water pump is electrically connected with the controller. The water pump is communicated with the atomization nozzles through a water pipe and electrically connected with the controller, when fruits and vegetables are placed on the partition plate and a signal of the sensor is cut off, the controller controls the atomization nozzles in the cut-off area to conduct regular spraying, and the fresh-keeping time of the fruits and vegetables is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of air curtain cabinet technology, specifically an air curtain cabinet with humidification function. Background Technology

[0002] Air curtain cabinets, also known as upright air curtain cabinets, work by blowing cold air out from the back, evenly covering every corner of the cabinet to preserve the freshness of products. The normal temperature setting for air curtain cabinets is between 2 and 8 degrees Celsius. In supermarkets, they are mainly used for storing beverages, yogurt, milk, vacuum-packed meat, cooked food, and fruit, but are not suitable for storing unpackaged foods.

[0003] Utility model CN212117692U discloses an intelligent double-air curtain display cabinet. This device uses an axial flow fan to form one air curtain through the inner air curtain outlet, and an outer air curtain cross-flow fan to form another air curtain. The outer air curtain, generated by the outer cross-flow fan, further blocks the outside air from the cold air flowing out of the inner air curtain outlet, further reducing heat exchange and convection between the cold air inside the storage cavity and the outside air. This allows the double-air curtain display cabinet to effectively reduce the loss of cold air from the storage cavity while preventing external heat from entering the storage cavity, even in environments without air conditioning, resulting in good insulation. However, when using air curtain cabinets to preserve fruits and vegetables, they simply rely on temperature regulation. With continuous economic development, people are paying more attention to the freshness of vegetables and fruits when purchasing them. However, because vegetables and fruits have a high water content, they are prone to wilting and drying out when placed in display cabinets due to water loss, affecting sales. Therefore, an air curtain cabinet with humidification function is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an air curtain cabinet with a humidification function, which has the advantage of extending the freshness of fruits and vegetables and solves the technical problem that fruits and vegetables placed in the air curtain cabinet are prone to wilting and drying out due to water loss, thus affecting sales.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An air curtain cabinet with humidification function includes a cabinet body, a controller mounted on the cabinet body, and multiple partitions inside. A sensor matrix is ​​mounted on each partition, arranged perpendicular to the inner wall of the cabinet body and electrically connected to the controller. Several atomizing nozzles are mounted above the partitions, located on the inner wall of the cabinet body and corresponding to each sensor. Each atomizing nozzle is equipped with a solenoid valve electrically connected to the controller. A water supply tank is located on one side of the cabinet body, containing a water pump. The water pump is connected to the atomizing nozzles via water pipes and electrically connected to the controller.

[0007] Furthermore, a fixing component is provided on the inner wall of the cabinet, and a groove is provided on the partition. A water trough overlaps the fixing component and the groove of the partition.

[0008] Furthermore, the partition plate is provided with several flow guide grooves.

[0009] Compared with the prior art, the technical solution of this application has the following beneficial effects: the device sets up a sensor matrix on the partition and sets a corresponding atomizing nozzle on each sensor. When fruits and vegetables are placed on the partition and the sensor signal is cut off, the controller controls the atomizing nozzle in the cut-off area to spray periodically, which effectively solves the problem that fruits and vegetables are prone to wilting and drying out due to water loss when placed in the air curtain cabinet, thus affecting sales and extending the freshness time of fruits and vegetables. Attached Figure Description

[0010] Figure 1 This is a structural block diagram of the present utility model;

[0011] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 3 for Figure 2 Enlarged view of point A.

[0013] In the diagram: 1-cabinet; 11-fixture; 2-partition; 21-flow guide channel; 3-sensor matrix; 4-atomizing nozzle; 5-water pump; 6-water supply tank; 7-controller; 8-water tank. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0015] Please see Figure 1-2In this embodiment, an air curtain cabinet with humidification function includes a cabinet body (1), a controller (7) is provided on the cabinet body (1), and multiple partitions (2) are provided inside. A sensor matrix (3) is provided on the partitions (2). The sensor matrix (3) is arranged along the direction perpendicular to the inner wall of the cabinet body (1) and is electrically connected to the controller (7). Several atomizing nozzles (4) are installed above the partitions (2). The atomizing nozzles (4) are arranged on the inner wall of the cabinet body (1) and correspond one-to-one with each sensor. A solenoid valve is provided on the atomizing nozzle (4). The solenoid valve is electrically connected to the controller (7). A water supply tank (6) is provided on one side of the cabinet body (1). A water pump (5) is provided in the water supply tank (6). The water pump (5) is connected to the atomizing nozzle (4) through a water pipe and is electrically connected to the controller (7).

[0016] In this application, the sensor matrix (3) of the device is a photoelectric sensor, including a transmitter and a receiver. The transmitter is located at the front end of the partition (2), and the receiver is located on the inner wall of the cabinet (1). When the sensor signal is cut off, it indicates that fruits and vegetables are placed in that area. When it is necessary to spray the fruits and vegetables, the controller determines the area where the signal is cut off, and the controller (7) controls the solenoid valve on the corresponding area's atomizing nozzle (4) to open, and at the same time controls the water pump (5) to start, pumping water from the water supply tank (6), and the atomizing nozzle (4) sprays the area where fruits and vegetables are placed. This effectively solves the problem that fruits and vegetables placed in the air curtain cabinet are prone to wilting and drying out due to water loss, which affects sales, and extends the shelf life of fruits and vegetables.

[0017] Furthermore, a fastener (11) is provided on the inner wall of the cabinet (1), and a groove is provided on the partition (2). A water trough (8) is connected to the fastener (11) and the groove of the partition (2).

[0018] like Figure 3 As shown: In this application, the device is equipped with a water tank (8) to facilitate the collection of excess spray water generated by the atomizing nozzle (4) and prevent the spray water from accumulating and damaging the fruits and vegetables; the upper surface of the water tank (8) and the upper surface of the partition (2) are kept on the same horizontal plane so that the spray water on the partition (2) can be smoothly collected into the water tank (8).

[0019] Furthermore, the partition (2) is provided with a plurality of flow channels (21).

[0020] like Figure 3As shown: In this application, the device facilitates the diversion of excess spray water by setting a diversion channel (21) on the partition (2), so that it can be smoothly collected into the water tank (8); wherein the diversion channel (21) is located between the sensor transmitter and receiver. Since the atomizing nozzle (4) is positioned and sprayed by the sensor, the effect of the diversion channel (21) is maximized.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An air curtain cabinet with humidification function, comprising a cabinet body (1), characterized in that: The cabinet (1) is equipped with a controller (7) and has multiple partitions (2) inside. A sensor matrix (3) is installed on the partitions (2). The sensor matrix (3) is arranged along the direction perpendicular to the inner wall of the cabinet (1) and is electrically connected to the controller (7). Several atomizing nozzles (4) are installed above the partitions (2). The atomizing nozzles (4) are arranged on the inner wall of the cabinet (1) and correspond one-to-one with each sensor. A solenoid valve is installed on the atomizing nozzle (4). The solenoid valve is electrically connected to the controller (7). A water supply tank (6) is installed on one side of the cabinet (1). A water pump (5) is installed in the water supply tank (6). The water pump (5) is connected to the atomizing nozzle (4) through a water pipe and is electrically connected to the controller (7).

2. The air curtain cabinet with humidification function according to claim 1, characterized in that: The cabinet (1) is provided with a fastener (11) on its inner wall, and the partition (2) is provided with a groove. A water trough (8) is connected to the fastener (11) and the groove of the partition (2).

3. The air curtain cabinet with humidification function according to claim 1, characterized in that: The partition (2) is provided with several guide grooves (21).

Citation Information

Patent Citations

  • Intelligent double-air-curtain display cabinet

    CN212117692U