Vortex Airflow Insect Trap with Filter Isolation

The problem

Standard suction traps pull insects directly into a spinning fan or impeller. The impact shreds the insects into a wet paste that coats the blades and the inner walls. According to the patent, this exposes viruses and bacteria carried by the insects to the passing airstream, which then blows out through the exhaust vent toward the user. Cleaning a blade coated in biological residue is also difficult and unpleasant for consumers.

The solution

The device separates the capture zone from the fan. Air enters through peripheral suction inlets and passes over angled guide vanes that point tangentially toward a circular suction port in the center of the bottom plate. This creates a rotating airflow channel inside the insect treatment device. A diversion filtering device sits directly over the suction port. When the negative pressure generating device pulls air through the port, insects are drawn into the vortex but cannot pass through the filter into the fan. They spin around the filter element until the constant airflow dries them out. The dried remains fall into a collection groove positioned above or beside the airflow channel, keeping the fan assembly clean and the exhaust air free of organic particles.

Who it is for

• Pest control appliance brands looking for a bladeless suction trap to differentiate from standard bug zappers on retail shelves.
• Outdoor hospitality suppliers providing patio equipment for restaurants and hotels where hygiene and odor matter more than raw kill speed.
• Amazon private-label sellers in the home and garden category needing a structurally distinct mosquito trap with clear marketing claims about cleanliness.
• Agricultural research stations requiring traps that collect intact specimens for counting rather than destroying them on impact.

How it works

The main parts

Operating steps

1. Power on the fan assembly - the centrifugal fan draws air through the air inlet, creating negative pressure at the central air suction opening (201) on the bottom plate.
2. Air enters the suction inlets - ambient air carrying nearby insects is pulled through the peripheral openings (5) on the side wall of the insect treatment device.
3. Guide vanes shape the flow - the flow guide device (14) forces the incoming air to move tangentially relative to the circular suction port, establishing a rotating vortex inside the airflow channel (15).
4. Insects are trapped in the vortex - the diversion filtering device (8) physically blocks the insects from being sucked down into the fan. They continue to circle the filter in the high-speed rotating airstream.
5. Dehydration occurs - the continuous airflow removes moisture from the trapped insects until they die.
6. Collection - dried insects are blown by the vortex into the storage groove opening (133) of the collecting device (13). Air passes through the air flow holes (134) back into the system, while the solid remains stay in the groove for later disposal.
7. Exhaust - clean air passes through the filter’s air inlet holes (801), enters the fan’s air inlet (11), and exits through the air outlet (7) and the exhaust port (6) on the fixed seat.

Applications

Backyard patios and decks

Homeowners place the trap near seating areas during summer evenings. The vortex pulls mosquitoes away from people without the loud snapping noise of electric grid zappers, and the enclosed dehydration process prevents the smell of burning insects.

Restaurant outdoor dining

Commercial patios require pest control that does not spray biological debris into the dining space. Because the fan is isolated behind the filter, the exhaust air remains clean, meeting the expectations of food service environments where hygiene is closely monitored.

Camping and RV sites

Portable versions powered by low-voltage DC fans can run from battery packs or vehicle outlets. The absence of fragile UV tubes or high-voltage grids makes the vortex design more resistant to vibration and transport shocks compared to traditional lantern-style zappers.

Greenhouse and nursery monitoring

Growers use suction traps to monitor flying pest populations. The collection groove allows staff to remove dried specimens periodically for identification and counting, supporting integrated pest management routines without introducing chemical sprays near crops.

Livestock barns and stables

Barns accumulate large numbers of flies and gnats. A high-volume centrifugal fan paired with a robust dome filter can process significant air volumes. The sealed fan compartment prevents dust and animal dander from clogging the motor as quickly as open-blade designs.

Where it is less suitable

• Instant-kill requirements - buyers who need insects killed immediately upon entry may prefer high-voltage grid traps, as dehydration takes time.
• Extremely dusty industrial settings - fine particulate can clog the filter’s air inlet holes rapidly, reducing suction unless a pre-filter or frequent cleaning schedule is maintained.
• Silent operation needs - any centrifugal fan generates aerodynamic noise; if absolute silence is required, passive sticky traps remain the only option.