一种正负压可调的循环式净化消毒舱
By setting multiple air vents on the fan of the purification and disinfection chamber, the internal cavity of the chamber can switch between positive pressure, negative pressure and circulation conditions, which solves the problems of the purification and disinfection chamber being unable to switch and airflow stagnation, and improves the applicability of the equipment and the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU SHENGDA MECHANICAL & ELECTRICAL HI TECH CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-17
AI Technical Summary
Existing purification and disinfection chambers cannot switch between negative and positive pressure conditions, and there are airflow path issues that cause air to stagnate in some areas of the chamber, affecting the user experience.
An internal air extraction port, an external air extraction port, an internal air blowing port, and an external air blowing port are installed on the blower. By switching the airflow path, the internal cavity of the chamber can switch between positive pressure, negative pressure, and circulation conditions, thereby increasing the applicability of the equipment and improving the airflow efficiency.
It enables flexible switching of the purification and disinfection chamber in different scenarios, enhances the applicability and user experience of the equipment, ensures efficient airflow within the chamber, and prevents air stagnation.
Smart Images
Figure CN224516959U_ABST
Abstract
Claims
1. A positive and negative pressure adjustable circulating type purification and disinfection cabin, characterized in that, The device includes a cabin (1) and an adjustment mechanism connected to the cabin (1). The adjustment mechanism includes a fan (2) and a purification and disinfection component that works with the fan (2). The fan (2) includes an internal air extraction port (3) and an internal air blowing port (5) connected to the cabin (1), and an external air extraction port (4) and an external air blowing port (6) connected to the outdoor space. The fan (2) can switch between a negative pressure condition where the internal air extraction port (3) and the external air blowing port (6) are connected, a positive pressure condition where the external air extraction port (4) and the internal air blowing port (5) are connected, and a circulating condition where the internal air extraction port (3) and the internal air blowing port (5) are connected, so that the air pressure inside the cabin (1) is adjustable.
2. The positive and negative pressure adjustable circulating type purification and disinfection cabin according to claim 1, characterized in that, The internal air inlet (5) is located at the top of the cabin (1). The internal air inlet (5) receives the airflow from the fan (2) and delivers it to the top of the cabin (1) so that the airflow diffuses from top to bottom within the cabin (1).
3. The positive and negative pressure adjustable circulating type purification and disinfection cabin according to claim 1, characterized in that, The side wall of the cabin (1) is provided with a vertically arranged air extraction pipe (7), and the inner air extraction port (3) is opened on the air extraction pipe (7). The airflow from the inner air blowing port (5) passes through the cabin (1) and is discharged through the inner air extraction port (3) to drive the airflow to circulate in the cabin (1).
4. The positive and negative pressure adjustable circulating type purification and disinfection cabin according to claim 1, characterized in that, The internal air extraction port (3) and the internal air blowing port (5) are respectively located on both sides of the cabin (1) to increase the flow distance of the airflow in the cabin (1); or, the internal air blowing port (5) is located in the middle of the top wall of the cabin (1), and the internal air extraction port (3) is located in the side wall of the cabin (1) so that the airflow diffuses and splits from the middle of the cabin (1) to the surrounding area.
5. The positive and negative pressure adjustable circulating type purification and disinfection cabin according to claim 1, characterized in that, The fans (2) are arranged in two sets and symmetrically on the hull (1).
6. The positive and negative pressure adjustable circulating type purification and disinfection cabin according to claim 5, characterized in that, The fans (2) are arranged parallel to each other along the airflow conveying direction within them; or, the fans (2) are arranged in the same direction along the airflow conveying direction within them.
7. The positive and negative pressure adjustable circulating type purification and disinfection cabin according to claim 3, characterized in that, The internal air extraction port (3) is located at the bottom end of the air extraction pipe (7); or, there are multiple internal air extraction ports (3) and they are vertically distributed along the air extraction pipe (7). The cross-sectional area of the internal air extraction port (3) gradually decreases from bottom to top, and the air in each layer of the cabin (1) can be extracted by the internal air extraction port (3) at the corresponding height.
8. The positive and negative pressure adjustable circulating type purification and disinfection cabin according to claim 1, characterized in that, The fan (2) includes a volute with internal fan blades and an outer shell that encloses the volute. The air extraction end of the volute can be switched between an inner air extraction port (3) and an outer air extraction port (4). The air blowing end of the volute can be switched between an inner air blowing port (5) and an outer air blowing port (6).
9. The positive and negative pressure adjustable circulating type purification and disinfection cabin according to claim 8, characterized in that, The purification and disinfection assembly includes a filter screen and a plasma generator connected in series with the volute.
10. The positive and negative pressure adjustable circulating type purification and disinfection cabin according to claim 1, characterized in that, The cabin (1) is cubic in shape, and the fan (2) is located above the top wall of the cabin (1); or, the cabin (1) is a modular structure that can be disassembled and assembled, and the cabin (1) can be switched between disassembled state and use state; or, the cabin (1) is a container body.