Wide-port air curtain blowing structure

By using an infrared sensor array and a gear system driven by an intelligent controller, the air supply direction is dynamically adjusted, solving the problem that the existing wide-mouth air curtain air supply structure cannot adapt to the movement of medical staff, and realizing personalized air supply control.

CN224534435UActive Publication Date: 2026-07-21BEIJING CEEDI ENG TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING CEEDI ENG TECH
Filing Date
2025-07-22
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing wide-mouth air curtain air supply structure cannot adapt to the movement of medical staff in the operating room, resulting in fixed air supply zone boundaries that cannot dynamically meet the needs of personnel.

Method used

An infrared sensor array is used to capture the heat source distribution of medical staff in real time. The intelligent controller controls the adjustment unit to drive the toothed rack and gears to rotate, and adjusts the position of the guide plate to change the air delivery direction, so as to realize the dynamic airflow.

Benefits of technology

The air supply structure can adapt to the movement of medical staff and dynamically adjust the air supply direction to meet the personalized environmental control needs of medical staff and patients.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a wide-mouth air curtain air supply structure and belongs to the technical field of ventilation and air conditioning. The wide-mouth air curtain air supply structure comprises an operating room, a sickbed, an air conditioning unit, an air return port, a circulating unit and an air return pipe. The wide-mouth air curtain air supply device is used for supplying clean and sterile air with low temperature and humidity and high wind speed to medical staff. The main laminar air supply device is used for supplying circulating air which is sterile and dust-free, has high temperature and low wind speed to patients. In the air supply process, the infrared sensor array is used for capturing the heat source distribution of the medical staff in real time and sending the position information to the intelligent controller. The intelligent controller processes and analyzes the position information and controls the starting of the adjusting unit. The adjusting unit drives the gear rack to move left and right and drives the gear one to rotate, so that the position of the flow guide plate is adjusted. The air supply direction is adjusted by the flow guide plate so as to blow to the medical staff gathering place. That is, the air supply structure can adapt to the movement of the medical staff by guiding the air direction.
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Description

Technical Field

[0001] This application relates to the field of ventilation and air conditioning technology, and in particular to a wide-mouth air curtain air supply structure. Background Technology

[0002] The wide-aperture air curtain air supply structure is an innovative solution for operating room air supply systems, designed to provide more personalized and precise environmental control through variable temperature and velocity air supply. This structure consists of a central main laminar flow air supply unit and two wide-aperture low-velocity air curtain air supply units on either side. The central main laminar flow air supply unit, located directly above the operating table, delivers sterile, dust-free, high-temperature, and low-velocity circulating air, creating a sterile and dust-free local environment conducive to perioperative patient temperature management. The wide-aperture low-velocity air curtain air supply units, located on either side of the main laminar flow air supply unit, deliver clean, sterile air with lower temperature and humidity and higher velocity, protecting the central main laminar flow airflow and dynamically meeting the needs of surgical personnel.

[0003] The published patent document CN214536760U discloses a temperature and velocity air conditioning system for operating rooms. This patent document designs the air supply device as three independent air supply units, including a main laminar flow air supply device in the center and wide-mouth low-speed air curtain air supply devices on both sides. The main laminar flow air supply device is located directly above the operating table to supply air to the patient, while the wide-mouth low-speed air curtain air supply devices on both sides are located above the sides of the operating table to supply air to the surgeons and anesthesiologists, so that the air supply can simultaneously meet the needs of the surgical team, the surgical patient and the anesthesiologist. However, the above device uses a preset temperature and velocity air supply zoning (such as a high-speed main air supply zone + low-speed air curtain), but the zoning boundaries are fixed and cannot adapt to sudden variables such as the movement of people in the operating room. Utility Model Content

[0004] In view of the shortcomings of the prior art, this application provides a wide-mouth air curtain air supply structure, which overcomes the shortcomings of the prior art and aims to solve the problems in the prior art.

[0005] To achieve the above objectives, this application provides the following technical solution: a wide-aperture air curtain air supply structure, including an operating room, a hospital bed, an air conditioning unit, a return air vent, a recirculation unit, and a return air duct. An air supply unit is fixedly installed on the top of the operating room directly above the hospital bed, and this air supply unit consists of three independent air supply devices. The air supply unit includes a main laminar flow air supply device in the middle and wide-aperture air curtain air supply devices on both sides. Infrared sensor arrays are symmetrically arranged on both sides of the air supply unit on the top of the operating room. An intelligent controller is fixedly installed on the side wall of the operating room. The air curtain air supply device has a rotating shaft internally connected to it. A guide plate is fixedly connected to the outer surface of the rotating shaft. One end of the rotating shaft is fixedly connected to a gear on the outside of the wide-mouth air curtain air supply device. A positioning block is fixedly installed on the side wall of the wide-mouth air curtain air supply device, and a gear row is slidably sleeved through the positioning block. The gear row meshes with the gear. An adjustment unit that drives the gear row to slide back and forth is fixedly installed on the side wall of the wide-mouth air curtain air supply device. The wide-mouth air curtain air supply device is connected to an air conditioning unit. The main laminar flow air supply device is connected to the return air outlet through a circulating unit and a return air duct.

[0006] By adopting the above technical solution, the wide-mouth air curtain air supply device, in conjunction with the air conditioning unit, delivers clean, sterile air with lower temperature and humidity and higher wind speed to medical staff. The main laminar flow air supply device, in conjunction with the circulation unit and the return air duct and return air outlet, delivers sterile, dust-free, higher temperature, and lower wind speed circulating air to patients. During the air supply process, the infrared sensor array captures the heat source distribution of medical staff in real time and sends the location information to the intelligent controller. The intelligent controller processes and analyzes this location information and controls the adjustment unit to start. The adjustment unit drives the gear rack to move left and right, driving gear one to rotate, thereby adjusting the position of the guide plate. This allows the air supply direction to be adjusted so that it blows towards the area where medical staff gather. In other words, this air supply structure can adapt to the movement of medical staff by guiding the airflow.

[0007] As a preferred technical solution of this application, the adjustment unit includes a fixed base fixedly installed on the side wall of the wide-mouth air curtain air supply device, a motor fixedly installed at the bottom of the fixed base, and a gear two fixedly connected to the output end of the motor, the gear two meshing with the gear rack.

[0008] By adopting the above technical solution, the motor is installed on one side of the wide-mouth air curtain air supply device through a fixed base, and the motor drives the gear two to rotate, thereby driving the gear row to move left and right.

[0009] As a preferred technical solution of this application, the toothed rack has a sliding groove inside, the width of the sliding groove is adapted to the width of the positioning block, and the positioning block is T-shaped.

[0010] By adopting the above technical solution, the toothed rack can slide left and right on the positioning block without detaching.

[0011] As a preferred technical solution of this application, the air conditioning unit includes an outdoor air conditioning unit installed outside the operating room. An air filter is fixedly installed at the output end of the outdoor air conditioning unit, and the output end of the air filter is fixedly connected to the input end of a wide-mouth air curtain air supply device through an air supply pipe.

[0012] By adopting the above technical solution, clean and sterile air with low temperature and humidity and high wind speed is delivered into the wide-mouth air curtain air supply device through the cooperation between the air conditioner outdoor unit, air filter and air supply duct.

[0013] As a preferred technical solution of this application, the return air vent is embedded in the inner wall of the operating room, and a filter and an ultraviolet disinfection lamp are fixedly installed inside the return air vent.

[0014] By adopting the above technical solution, the return air entering the return air inlet is filtered and disinfected by setting up a filter screen and an ultraviolet disinfection lamp.

[0015] As a preferred technical solution of this application, a grille is fixedly installed on the front side of the return air vent by screws.

[0016] By adopting the above technical solution, the grille can be opened to facilitate the cleaning and replacement of the filter and ultraviolet disinfection lamp inside the return air vent.

[0017] As a preferred technical solution of this application, the infrared sensor array is signal-connected to the intelligent controller, and the intelligent controller is electrically connected to the motor.

[0018] By adopting the above technical solution, the distribution of heat sources of medical staff is captured in real time by an infrared sensor array and its location information is sent to the intelligent controller. The intelligent controller processes and analyzes this location information and controls the motor to start.

[0019] As a preferred technical solution of this application, the rotating shaft and the guide plate are made of non-toxic and harmless plastic materials, and the gear one, gear two and the gear rack are made of stainless steel.

[0020] By adopting the above technical solutions, it is ensured that the manufacturing materials of each component meet the safety and hygiene standards of the operating room.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] In this invention, a wide-mouth air curtain air supply device, in conjunction with an air conditioning unit, delivers clean, sterile air with low temperature and humidity and high wind speed to medical staff. The main laminar flow air supply device, in conjunction with a circulation unit and a return air duct and return air inlet, delivers sterile, dust-free, high-temperature, and low-wind-speed circulating air to patients. During the air supply process, an infrared sensor array captures the heat source distribution of medical staff in real time and sends their location information to an intelligent controller. The intelligent controller processes and analyzes this location information and controls the adjustment unit to start. The adjustment unit drives the gear rack to move left and right, causing gear one to rotate, thereby adjusting the position of the guide plate. This allows the air supply direction to be adjusted so that it blows towards the area where medical staff gather. In other words, this air supply structure can adapt to the movement of medical staff by guiding the airflow.

[0023] Referring to the following description and accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating how the principles of the present invention can be adopted. It should be understood that the scope of the embodiments of the present invention is not limited thereto. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a frontal sectional view of the structure of this application;

[0026] Figure 2 This is a schematic diagram showing the connections of the various components of the air supply structure in this application;

[0027] Figure 3 This is a schematic diagram of the connection structure of the wide-mouth air curtain air supply device of this application;

[0028] Figure 4 This is a schematic diagram showing the partial structure of this application;

[0029] Figure 5 This is a schematic diagram of the internal structure of the return air vent in this application.

[0030] In the diagram: 1. Operating room; 2. Hospital bed; 3. Main laminar flow air supply device; 4. Wide-mouth air curtain air supply device; 5. Infrared sensor array; 6. Intelligent controller; 7. Air conditioning unit; 71. Air conditioning outdoor unit; 72. Air filter; 73. Air supply duct; 8. Rotating shaft; 9. Guide plate; 10. Gear one; 11. Positioning block; 12. Gear rack; 13. Sliding groove; 14. Adjustment unit; 141. Fixed seat; 142. Motor; 143. Gear two; 15. Return air outlet; 16. Circulation unit; 17. Return air duct; 18. Grille; 19. Filter screen; 20. Ultraviolet disinfection lamp. Detailed Implementation

[0031] 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.

[0032] like Figure 1 - Figure 5 As shown, this embodiment provides a wide-aperture air curtain air supply structure, including an operating room 1, a hospital bed 2, an air conditioning unit 7, a return air outlet 15, a recirculation unit 16, and a return air duct 17. An air supply unit is fixedly installed on the top of the operating room 1 directly above the hospital bed 2, and this air supply unit consists of three independent air supply devices. The air supply unit includes a main laminar flow air supply device 3 located in the middle and wide-aperture air curtain air supply devices 4 on both sides. Infrared sensor arrays 5 are symmetrically arranged on both sides of the air supply unit on the top of the operating room 1. A smart controller 6 is fixedly installed on the wall. A rotating shaft 8 is rotatably connected inside the wide-mouth air curtain air supply device 4. A guide plate 9 is fixedly connected to the outer surface of the rotating shaft 8. A gear 10 is fixedly connected to one end of the rotating shaft 8 on the outside of the wide-mouth air curtain air supply device 4. A positioning block 11 is fixedly installed on the side wall of the wide-mouth air curtain air supply device 4, and a gear rack 12 is slidably sleeved through the positioning block 11. The gear rack 12 meshes with the gear 10. An adjustment unit 1 is fixedly installed on the side wall of the wide-mouth air curtain air supply device 4 to drive the gear rack 12 to slide back and forth. 4. The wide-mouth air curtain air supply device 4 is connected to the air conditioning unit 7. The main laminar flow air supply device 3 is connected to the return air outlet 15 through the circulation unit 16 and the return air duct 17. In use, the wide-mouth air curtain air supply device 4, in conjunction with the air conditioning unit 7, delivers clean, sterile air with lower temperature and humidity and higher wind speed to medical staff. The main laminar flow air supply device 3, in conjunction with the circulation unit 16 and the return air duct 17 and the return air outlet 15, delivers sterile, dust-free, higher temperature, and lower wind speed circulating air to patients. During the air supply process, infrared sensors are used to detect the air supply. Sensor array 5 captures the heat source distribution of medical staff in real time and sends its location information to intelligent controller 6. Intelligent controller 6 processes and analyzes this location information and controls the adjustment unit 14 to start. The adjustment unit 14 drives the gear rack 12 to move left and right, thereby driving gear 10 to rotate, thereby adjusting the position of the guide plate 9 so that the air delivery direction can be adjusted to blow towards the gathering place of medical staff. That is, the air delivery structure can adapt to the movement of medical staff by guiding the airflow.

[0033] In this embodiment, as Figure 3 and 4As shown, the adjustment unit 14 includes a fixed base 141 fixedly installed on the side wall of the wide-mouth air curtain air supply device 4. A motor 142 is fixedly installed at the bottom of the fixed base 141. A gear 143 is fixedly connected to the output end of the motor 142. The gear 143 meshes with the gear rack 12. In use, the motor 142 is installed on one side of the wide-mouth air curtain air supply device 4 through the fixed base 141. The motor 142 drives the gear 143 to rotate, thereby driving the gear rack 12 to move left and right.

[0034] In this embodiment, as Figure 3 and 4 As shown, the toothed rack 12 has a sliding groove 13 inside. The width of the sliding groove 13 is adapted to the width of the positioning block 11, and the positioning block 11 is T-shaped. In use, the toothed rack 12 can slide left and right on the positioning block 11 without falling off.

[0035] In this embodiment, as Figure 2 As shown, the air conditioning unit 7 includes an outdoor air conditioning unit 71 installed outside the operating room 1. An air filter 72 is fixedly installed at the output end of the outdoor air conditioning unit 71. The output end of the air filter 72 is fixedly connected to the input end of the wide-mouth air curtain air supply device 4 through the air supply pipe 73. In use, clean and sterile air with low temperature and humidity and high wind speed is sent into the wide-mouth air curtain air supply device 4 through the cooperation between the outdoor air conditioning unit 71, the air filter 72 and the air supply pipe 73.

[0036] In this embodiment, as Figure 5 As shown, the return air vent 15 is embedded in the inner wall of the operating room 1. A filter screen 19 and an ultraviolet disinfection lamp 20 are fixedly installed inside the return air vent 15. In use, the return air entering the return air vent 15 is filtered and disinfected by setting the filter screen 19 and the ultraviolet disinfection lamp 20.

[0037] In this embodiment, as Figure 5 As shown, a grille 18 is fixedly installed on the front side of the return air vent 15 with screws. During use, by opening the grille 18, staff can easily clean and replace the filter 19 and ultraviolet disinfection lamp 20 inside the return air vent 15.

[0038] In this embodiment, as Figure 2 and 4 As shown, the infrared sensor array 5 is signal-connected to the intelligent controller 6, and the intelligent controller 6 is electrically connected to the motor 142. In use, the infrared sensor array 5 captures the heat source distribution of medical staff in real time and sends its location information to the intelligent controller 6. The intelligent controller 6 processes and analyzes this location information and controls the motor 142 to start.

[0039] In this embodiment, as Figure 1-4As shown, the rotating shaft 8 and the guide plate 9 are made of non-toxic and harmless plastic materials, while gear 10, gear 2 143 and gear rack 12 are made of stainless steel. During use, it is ensured that the manufacturing materials of each component meet the safety and hygiene standards of operating room 1.

[0040] The working principle of this utility model is as follows: When using the wide-mouth air curtain air supply structure of this application, the wide-mouth air curtain air supply device 4 and the air conditioning unit 7 work together to deliver clean and sterile air with low temperature and humidity and high wind speed to medical staff. The main laminar flow air supply device 3 delivers sterile and dust-free circulating air with high temperature and low wind speed to patients through the cooperation of the circulation unit 16, the return air pipe 17 and the return air port 15. During the air supply process, the infrared sensor array 5 captures the heat source distribution of medical staff in real time and sends its location information to the intelligent controller 6. The intelligent controller 6 processes and analyzes this location information and controls the motor 142 to start. The motor 142 drives the gear 143 to rotate, which drives the gear rack 12 to move left and right. By driving the gear rack 12 to move left and right, the gear 10 is rotated, thereby adjusting the position of the guide plate 9 so that the air supply direction can be adjusted by the guide plate 9 to blow towards the gathering place of medical staff. That is, this air supply structure can adapt to the movement of medical staff by guiding the airflow.

[0041] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. A wide-mouth air curtain air supply structure, comprising an operating room (1), a hospital bed (2), an air conditioning unit (7), a return air outlet (15), a recirculation unit (16), and a return air duct (17), characterized in that, The operating room (1) is fixedly equipped with a ventilation unit located directly above the bed (2). The ventilation unit consists of three independent ventilation devices. The ventilation unit includes a main laminar flow ventilation device (3) located in the middle and wide-mouth air curtain ventilation devices (4) on both sides. Infrared sensor arrays (5) are symmetrically arranged on both sides of the ventilation unit on the top of the operating room (1). A smart controller (6) is fixedly installed on the side wall of the operating room (1). A rotating shaft (8) is rotatably connected inside the wide-mouth air curtain ventilation device (4). A guide plate (9) is fixedly connected to the outer surface of the rotating shaft (8). One end of the wide-mouth air curtain air supply device (4) is fixedly connected to the outside of the gear one (10). The side wall of the wide-mouth air curtain air supply device (4) is fixedly installed with a positioning block (11) and a toothed row (12) is slidably sleeved through the positioning block (11). The toothed row (12) meshes with the gear one (10). The side wall of the wide-mouth air curtain air supply device (4) is fixedly installed with an adjustment unit (14) that drives the toothed row (12) to slide back and forth. The wide-mouth air curtain air supply device (4) is connected to the air conditioning unit (7). The main laminar flow air supply device (3) is connected to the return air port (15) through the circulating unit (16) and the return air pipe (17).

2. The wide-mouth air curtain air supply structure according to claim 1, characterized in that, The adjustment unit (14) includes a fixed seat (141) fixedly installed on the side wall of the wide-mouth air curtain air supply device (4). A motor (142) is fixedly installed at the bottom of the fixed seat (141). A gear (143) is fixedly connected to the output end of the motor (142). The gear (143) meshes with the gear rack (12).

3. The wide-mouth air curtain air supply structure according to claim 1, characterized in that, The toothed row (12) has a sliding groove (13) inside. The width of the sliding groove (13) is adapted to the width of the positioning block (11), and the positioning block (11) is T-shaped.

4. The wide-mouth air curtain air supply structure according to claim 1, characterized in that, The air conditioning unit (7) includes an outdoor air conditioning unit (71) located outside the operating room (1). An air filter (72) is fixedly installed at the output end of the outdoor air conditioning unit (71). The output end of the air filter (72) is fixedly connected to the input end of the wide-mouth air curtain air supply device (4) through an air supply pipe (73).

5. The wide-mouth air curtain air supply structure according to claim 1, characterized in that, The return air vent (15) is embedded in the inner wall of the operating room (1), and a filter screen (19) and an ultraviolet disinfection lamp (20) are fixedly installed inside the return air vent (15).

6. The wide-mouth air curtain air supply structure according to claim 1, characterized in that, A grille (18) is fixed to the front side of the return air vent (15) by screws.

7. The wide-mouth air curtain air supply structure according to claim 2, characterized in that, The infrared sensor array (5) is signal-connected to the intelligent controller (6), and the intelligent controller (6) is electrically connected to the motor (142).

8. The wide-mouth air curtain air supply structure according to claim 2, characterized in that, The rotating shaft (8) and the guide plate (9) are made of non-toxic and harmless plastic materials, and the gear one (10), gear two (143) and gear row (12) are made of stainless steel.