Double air duct disinfection cabinet with staggered air supply
By setting up a dual-air duct structure with staggered air supply inside the disinfection cabinet, and using the first and second fans to form a cross-circulation air duct, the problem of uneven airflow inside the disinfection cabinet is solved, thereby improving the uniformity and efficiency of disinfection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG GORDEN NETWORK TECHNOLOGY CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-21
AI Technical Summary
Existing disinfection cabinets use a single external circulation method, which results in uneven airflow circulation inside the cavity, affecting the disinfection effect. In addition, the position of the air inlet and outlet affects the direction of airflow circulation and cannot cover the entire internal area of the disinfection cabinet.
The design of the dual-air duct disinfection cabinet with staggered air supply is achieved by setting up dual air inlets and outlets and fans to form a cross-circulation air duct. The first and second fans respectively form the external circulation and internal circulation air ducts, and the airflow cross-circulates within the cabinet to improve uniformity.
The optimized air duct structure improved the uniformity and efficiency of disinfection, thus enhancing the disinfection effect.
Smart Images

Figure CN224523642U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of disinfection cabinet technology, specifically relating to a dual-air duct disinfection cabinet with staggered air supply. Background Technology
[0002] Disinfection cabinets primarily employ disinfection methods including ultraviolet disinfection, high-temperature disinfection, ozone disinfection, and plasma disinfection. Different disinfection methods have their own characteristics and advantages. Through continuous development and application, the development trend of disinfection cabinets has become increasingly diversified, intelligent, and efficient. Some disinfection cabinets utilize heated external airflow that is then delivered into the cabinet interior. The hot air circulates throughout the cabinet, disinfecting the interior before being expelled, thus creating a hot airflow circulation.
[0003] Existing disinfection cabinets primarily use a single external circulation system, where a fan draws air in from the outside, heats it via a PTC heater, and then it operates within the cabinet before exiting through an outlet. This method cannot guarantee uniform airflow within the cabinet, resulting in varying temperatures and humidity levels at different locations, thus affecting the overall disinfection effect. Furthermore, the location of the air inlet and outlet also influences the direction of airflow within the cabinet; a single circulation duct cannot cover the entire interior area, further impacting disinfection efficiency. Summary of the Invention
[0004] To address the problems in related technologies, this utility model proposes a dual-air-duct disinfection cabinet with staggered air supply. By setting up dual air inlets and outlets and a fan, combined with an internal air inlet channel, a cross-circulating air duct is formed, which improves the uniformity of disinfection through staggered air supply.
[0005] This utility model is implemented as follows:
[0006] A dual-air duct disinfection cabinet with staggered air supply includes a cabinet body with an opening on one side and a cabinet door hinged to the opening side of the cabinet body. The cabinet body is provided with an external air inlet and an external air outlet, and a first fan is connected to the external air inlet.
[0007] The cabinet is also equipped with an internal air inlet and an internal air outlet. A second fan is connected to the internal air outlet, and the second fan extends from the outside of the cabinet to the internal air inlet to form a closed internal air inlet channel. The internal air inlet, internal air outlet, external air inlet, and external air outlet are located on the same side panel of the cabinet.
[0008] The first fan delivers gas from the external air inlet to the inside of the cabinet and exhausts it from the external air outlet; the second fan delivers gas from inside the cabinet to the internal air inlet channel, and after passing through the internal air inlet channel, it re-enters the inside of the cabinet through the internal air inlet and then exhausts it to the second fan from the internal air outlet.
[0009] The air path formed between the external air inlet and the external air outlet intersects with the air path formed between the internal air inlet and the internal air outlet.
[0010] Preferably, the external air inlet is located below the internal air inlet, and the internal air outlet is located below the external air outlet; the external air inlet and the external air outlet, and the internal air inlet and the internal air outlet are diagonally arranged on the same side of the panel inside the cabinet.
[0011] Specifically, the lower external air inlet and internal air outlet are arranged horizontally, while the upper external air outlet and internal air inlet are arranged vertically; the external air inlet and external air outlet are arranged diagonally, and the internal air inlet and internal air outlet are arranged diagonally, and the line formed between the external air inlet and external air outlet intersects with the line formed between the internal air inlet and internal air outlet.
[0012] Preferably, the positions of the external air inlet and the internal air outlet are symmetrical, and the positions of the external air outlet and the internal air inlet are symmetrical.
[0013] Specifically, the external air inlet, internal air inlet, external air outlet, and internal air outlet are all located at the four corners of the cabinet panel; the diagonal arrangement allows the airflow to circulate crosswise within the cabinet, maximizing the diffusion and coverage area.
[0014] Preferably, the external air inlet and the internal air outlet are the same size; the external air outlet and the internal air inlet are the same size.
[0015] Specifically, the sizes of the external air inlet, internal air outlet, and external air vent can be set to be exactly the same. Setting the external air inlet and internal air outlet to be the same size can improve the uniformity and stability of airflow circulation.
[0016] Preferably, the external air vent is connected to the outside, while the internal air inlet and internal air outlet are not connected to the outside.
[0017] Specifically, the external air vent introduces external air into the cabinet, while the internal air inlet and outlet guide the air inside the cabinet back into circulation.
[0018] Preferably, the first fan delivers external air into the cabinet through the external air inlet and discharges it to the outside of the cabinet through the external air outlet, forming an external circulation air duct; the second fan delivers air from inside the cabinet through the internal air outlet to the internal air inlet channel, and after passing through the internal air inlet channel, it re-enters the cabinet through the internal air inlet, and then flows to the second fan through the internal air outlet, forming an internal circulation air duct.
[0019] Specifically, the external circulation duct formed by the external air outlet and the external air inlet, together with the internal circulation duct formed by the internal air outlet and the internal air inlet, form a cross-circulation duct.
[0020] Preferably, the cabinet panel where the external and internal air inlets are located has a cover plate on its outer side that is adapted to the cabinet panel surface, and the internal air inlet channel is located between the cover plate and the cabinet; the internal air inlet channel includes an air outlet section, a transmission section and an air inlet section; a second fan is provided at the air outlet section, and the second fan delivers the air from the cabinet from the internal air outlet to the air outlet section; the transmission section is located between the air outlet section and the air inlet section, and the air inlet section is connected to the internal air inlet.
[0021] Specifically, the air outlet section, transmission section, and air inlet section form a three-section Z-shaped bend structure, and the path of the transmission section is perpendicular to the paths of the other two sections.
[0022] Preferably, the outer side of the cover plate is also provided with a housing, and the first fan and the second fan are both located between the cover plate and the housing; the first fan is located at the upper end of the outer air inlet and is connected to the outer air inlet; the second fan is located at the upper end of the inner air outlet and is connected to the inner air outlet.
[0023] Specifically, the first and second fans are set up side by side and work independently. The second fan is mainly used to guide the gas inside the cabinet into the internal air intake channel to form an internal circulation air duct.
[0024] Preferably, the housing is further provided with an air inlet and an air outlet, the air inlet being connected to the first fan and the air outlet being connected to the external air outlet.
[0025] Specifically, the air outlet plate is provided with several through holes to discharge gas; the first fan delivers external gas into the cabinet through the air inlet, and the air outlet is used to discharge the gas in the cabinet through the through holes of the air outlet plate to form an external circulation air duct.
[0026] Preferably, the first fan is also equipped with a heating plate.
[0027] Specifically, the heating plate heats the external gas and then the first fan delivers it into the cavity. The external air inlet is located at the bottom of the cabinet, which allows the hot air to rise and facilitates the formation of a circulating airflow.
[0028] Compared with the prior art, the present invention achieves the following beneficial effects:
[0029] This utility model provides a dual-duct disinfection cabinet with staggered air supply. An external air inlet, an external air outlet, an internal air inlet, and an internal air outlet are arranged crosswise on the same panel inside the cabinet. An external circulation duct is formed by a first fan and the external air inlet and outlet, and an internal circulation duct is formed by a second fan, the internal air inlet channel, and the internal air inlet and outlet. This forms a cross-circulation air duct with staggered air supply, optimizes the structure of the air duct, and improves the uniformity of disinfection through staggered air supply, thereby improving the efficiency and effect of disinfection. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of a dual-duct disinfection cabinet with staggered air supply according to an embodiment of the present utility model.
[0031] Figure 2 This is a schematic diagram of the structure of a dual-duct disinfection cabinet with staggered air supply in an embodiment of the present utility model;
[0032] Figure 3 This is an exploded structural diagram of a dual-duct disinfection cabinet with staggered air supply according to an embodiment of the present utility model.
[0033] Figure 4 This is a schematic diagram of the internal air inlet channel structure of a dual-channel disinfection cabinet with staggered air supply in an embodiment of this utility model.
[0034] Figure 5 This is a schematic diagram of the cover structure of a dual-air duct disinfection cabinet with staggered air supply in an embodiment of this utility model;
[0035] Figure 6 This is a schematic diagram of the circulating air duct of a dual-air duct disinfection cabinet with staggered air supply, as described in an embodiment of this utility model.
[0036] Figure label:
[0037] 1. Cabinet; 11. External air inlet; 12. External air outlet; 13. First fan; 131. Heating plate; 14. Internal air inlet; 15. Internal air outlet; 16. Second fan; 17. Cover plate; 18. Internal air inlet channel; 181. Air outlet section; 182. Transmission section; 183. Air inlet section;
[0038] 2. Cabinet doors;
[0039] 3. Housing; 31. Air outlet; 32. Air inlet. Detailed Implementation
[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0041] Example
[0042] like Figures 1 to 6 A dual-air duct disinfection cabinet with staggered air supply includes a cabinet body 1 with an opening on one side and a cabinet door 2 hinged to the opening side of the cabinet body 1. The cabinet body 1 is provided with an external air inlet 11 and an external air outlet 12. A first fan 13 is connected to the external air inlet 11.
[0043] The cabinet 1 is also provided with an internal air inlet 14 and an internal air outlet 15. A second fan 16 is connected to the internal air outlet 15. The second fan 16 extends from the outside of the cabinet 1 to the internal air inlet 14 to form a closed internal air inlet channel 18. The internal air inlet 14, the internal air outlet 15, the external air inlet 11, and the external air outlet 12 are located on the same side panel of the cabinet 1.
[0044] The first fan 13 delivers gas from the external air inlet 11 into the cabinet 1 and discharges it from the external air outlet 12; the second fan 16 delivers the gas in the cabinet 1 to the internal air inlet channel 18, and after passing through the internal air inlet channel 18, it re-enters the cabinet 1 through the internal air inlet 14, and then discharges it to the second fan 16 through the internal air outlet 15.
[0045] The air path formed between the external air inlet 11 and the external air outlet 12 intersects with the air path formed between the internal air inlet 14 and the internal air outlet 15.
[0046] The external air inlet 11 is located below the internal air inlet 14, and the internal air outlet 15 is located below the external air outlet 12; the external air inlet 11 and the external air outlet 12, and the internal air inlet 14 and the internal air outlet 15 are arranged diagonally on the same side of the panel inside the cabinet 1.
[0047] The lower external air inlet 11 and internal air outlet 15 are arranged horizontally, while the upper external air outlet 12 and internal air inlet 14 are arranged vertically. The external air inlet 11 and external air outlet 12 are arranged diagonally, and the internal air inlet 14 and internal air outlet 15 are arranged diagonally. The line connecting the external air inlet 11 and external air outlet 12 intersects the line connecting the internal air inlet 14 and internal air outlet 15.
[0048] The positions of the external air inlet 11 and the internal air outlet 15 are symmetrical to each other, and the positions of the external air outlet 12 and the internal air inlet 14 are symmetrical to each other.
[0049] The external air inlet 11, internal air inlet 14, external air outlet 12, and internal air outlet 15 are all located at the four corners of the cabinet 1 panel; the diagonal arrangement allows the airflow to circulate crosswise within the cabinet 1, maximizing the diffusion and coverage area.
[0050] The external air inlet 11 and the internal air outlet 15 are the same size; the external air outlet 12 and the internal air inlet 14 are the same size.
[0051] The sizes of the external air inlet 11, internal air outlet 15, external air outlet 12, and internal air inlet 14 can also be set to be exactly the same. Setting the external air inlet 11, internal air outlet 15, etc. to be the same size can improve the uniformity and stability of airflow circulation.
[0052] The external air vent 12 is connected to the outside, while the internal air inlet 14 and internal air outlet 15 are not connected to the outside.
[0053] The external air vent 12 introduces external air into the cabinet 1, while the internal air inlet 14 and internal air outlet 15 guide the air inside the cabinet 1 again and form an internal circulation.
[0054] The first fan 13 delivers external air into the cabinet 1 through the external air inlet 11 and discharges it to the outside of the cabinet 1 through the external air outlet 12, forming an external circulation air duct; the second fan 16 delivers the air in the cabinet 1 to the internal air inlet channel 18 through the internal air outlet 15, and after passing through the internal air inlet channel 18, it re-enters the cabinet 1 through the internal air inlet 14, and then flows to the second fan 16 through the internal air outlet 15, forming an internal circulation air duct.
[0055] The external circulation duct formed by the external air outlet 12 and the external air inlet 11, together with the internal circulation duct formed by the internal air outlet 15 and the internal air inlet 14, form a cross-circulation duct.
[0056] The cabinet 1 panel containing the external air inlet 11 and the internal air inlet 14 has a cover plate 17 on its outer side that is adapted to the cabinet 1 panel. The internal air inlet channel 18 is located between the cover plate 17 and the cabinet 1. The internal air inlet channel 18 includes an air outlet section 181, a transmission section 182 and an air inlet section 183. A second fan 16 is provided at the air outlet section 181, and the second fan 16 delivers the air from the cabinet 1 from the internal air outlet 15 to the air outlet section 181. The transmission section 182 is located between the air outlet section 181 and the air inlet section 183, and the air inlet section 183 is connected to the internal air inlet 14.
[0057] The air outlet section 181, transmission section 182 and air inlet section 183 form a three-section Z-shaped bend structure, and the path of the transmission section 182 is perpendicular to the paths of the other two sections.
[0058] The cover plate 17 is also provided with a housing 3 on its outer side. The first fan 13 and the second fan 16 are both located between the cover plate 17 and the housing 3. The first fan 13 is located at the upper end of the outer air inlet 11 and is connected to the outer air inlet 11. The second fan 16 is located at the upper end of the inner air outlet 15 and is connected to the inner air outlet 15.
[0059] The first fan 13 and the second fan 16 are arranged side by side and work independently. The second fan 16 is mainly used to guide the gas in the cabinet 1 into the inner air intake channel 18 to form an internal circulation air duct.
[0060] The housing 3 is also provided with an air inlet 32 and an air outlet 31. The air inlet 32 is connected to the first fan 13, and the air outlet 31 is connected to the external air outlet 12.
[0061] The air outlet plate 31 is provided with several through holes, through which gas is discharged; the first fan 13 delivers external gas to the cabinet 1 through the air inlet, and the air outlet 12 is used to discharge the gas in the cabinet 1 through the through holes of the air outlet plate 31 to form an external circulation air duct.
[0062] The first fan 13 is also equipped with a heating plate 131.
[0063] The heating plate 131 is a PTC heating plate 131. After the heating plate 131 heats the external gas, it is delivered to the cavity by the first fan 13. The external air inlet 11 is located below the cabinet 1, which can make the hot air rise and facilitate the formation of a circulating airflow.
[0064] This utility model provides a dual-duct disinfection cabinet with staggered air supply. The first fan 13 draws in external air, heats it using a heating plate 131, and then delivers it into the cavity through the external air inlet 11. Finally, the air in the cavity is discharged to the outside through the external air outlet 12, forming an external circulation duct. The air in the cavity is then drawn in through the internal air outlet 15 by the second fan 16 into the internal air inlet channel 18, and after passing through the internal air inlet channel 18, it re-enters the cabinet 1 through the internal air inlet 14, forming an internal circulation duct. Since the external air inlet 11 is located at the lower end of the cabinet 1, the airflow will rise after being heated to form hot air. The external air inlet 11 and the external air outlet 12 are diagonally arranged, and the internal air inlet 14 and the internal air outlet 15 are diagonally arranged, that is, the external circulation duct and the internal circulation duct intersect each other, forming a staggered air supply cross circulation duct. By utilizing the design of the internal and external circulation dual ducts and optimizing the duct structure, the uniformity of disinfection is improved, and the efficiency and effect of disinfection are enhanced.
[0065] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.
Claims
1. A dual-duct disinfection cabinet with staggered air supply, comprising a cabinet body with an opening on one side and a cabinet door hinged to the opening side of the cabinet body, wherein the cabinet body is provided with an external air inlet and an external air outlet, and a first fan is connected to the external air inlet; characterized in that, The cabinet is also equipped with an internal air inlet and an internal air outlet. A second fan is connected to the internal air outlet, and the second fan extends from the outside of the cabinet to the internal air inlet to form a closed internal air inlet channel. The internal air inlet, internal air outlet, external air inlet, and external air outlet are located on the same side panel of the cabinet. The first fan delivers gas from the external air inlet to the inside of the cabinet and exhausts it from the external air outlet; the second fan delivers gas from inside the cabinet to the internal air inlet channel, and after passing through the internal air inlet channel, it re-enters the inside of the cabinet through the internal air inlet and then exhausts it to the second fan from the internal air outlet. The air path formed between the external air inlet and the external air outlet intersects with the air path formed between the internal air inlet and the internal air outlet.
2. The dual-duct disinfection cabinet with staggered air supply according to claim 1, characterized in that, The external air inlet is located below the internal air inlet, and the internal air outlet is located below the external air outlet; the external air inlet and external air outlet, and the internal air inlet and internal air outlet are diagonally arranged on the same side of the panel inside the cabinet.
3. A dual-duct disinfection cabinet with staggered air supply according to claim 2, characterized in that, The positions of the external air inlet and the internal air outlet are symmetrical to each other, and the positions of the external air outlet and the internal air inlet are symmetrical to each other.
4. A dual-duct disinfection cabinet with staggered air supply according to claim 3, characterized in that, The external air inlet and the internal air outlet are the same size; the external air outlet and the internal air inlet are the same size.
5. A dual-duct disinfection cabinet with staggered air supply according to claim 1, characterized in that, The external air vent is connected to the outside, while the internal air inlet and internal air outlet are not connected to the outside.
6. A dual-duct disinfection cabinet with staggered air supply according to claim 5, characterized in that, The first fan transports external air into the cabinet through the external air inlet and discharges it to the outside of the cabinet through the external air outlet, forming an external circulation air duct; the second fan transports the air inside the cabinet through the internal air outlet to the internal air inlet channel, and after passing through the internal air inlet channel, it re-enters the cabinet through the internal air inlet, and then flows to the second fan through the internal air outlet, forming an internal circulation air duct.
7. A dual-duct disinfection cabinet with staggered air supply according to claim 1, characterized in that, The cabinet panel containing the external and internal air inlets has a cover plate on its outer side that is adapted to the cabinet panel surface. The internal air inlet channel is located between the cover plate and the cabinet. The internal air inlet channel includes an air outlet section, a transmission section, and an air inlet section. A second fan is provided at the air outlet section, and the second fan delivers air from the cabinet from the internal air outlet to the air outlet section. The transmission section is located between the air outlet section and the air inlet section, and the air inlet section is connected to the internal air inlet.
8. A dual-duct disinfection cabinet with staggered air supply according to claim 7, characterized in that, The cover plate is also provided with a housing on its outer side, and the first fan and the second fan are both located between the cover plate and the housing; the first fan is located at the upper end of the outer air inlet and is connected to the outer air inlet; the second fan is located at the upper end of the inner air outlet and is connected to the inner air outlet.
9. A dual-duct disinfection cabinet with staggered air supply according to claim 8, characterized in that, The housing is also provided with an air inlet and an air outlet. The air inlet is connected to the first fan, and the air outlet is connected to the external air outlet.
10. A dual-duct disinfection cabinet with staggered air supply according to claim 1, characterized in that, The first fan is also equipped with a heating plate.