Fresh air device and air conditioner
By designing a second sound-absorbing cavity in the fresh air device and using sound-absorbing cotton and sponge materials to absorb airflow dynamic noise, the problem of insufficient low-frequency noise attenuation in traditional fresh air systems is solved, achieving a better quiet effect.
CN224479837UActive Publication Date: 2026-07-10TCL AIR CONDITIONER ZHONGSHAN CO LTD
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Patent Information
- Application Number
- CN202521437315.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-10
- Estimated Expiration
- 2035-07-09
AI Technical Summary
Technical Problem
In traditional fresh air systems, the low-frequency noise generated by the high-speed rotation of the fan is not sufficiently attenuated, which affects the user experience.
Method used
In the fresh air device, a second sound-absorbing cavity is designed and connected to the cavity through the first through hole. Combining the structures of the first and second sound-absorbing cavities, sound-absorbing cotton and sponge materials are used to absorb airflow dynamic noise and reduce noise in a coordinated manner.
Benefits of technology
It effectively reduces noise levels in the 0–400 Hz frequency band, improves the quietness of the fresh air system, and enhances the user experience.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model provides a fresh air device and an air conditioner, and the fresh air device comprises a volute, a first shell, a second shell, a third shell, a first air inlet, a second air inlet, a third air inlet, a fourth air inlet and a fifth air outlet, the second shell is located on the side, away from the volute, of the first shell, and a second sound absorption cavity is defined by the second shell and the first shell; the first shell is provided with a plurality of first through holes, and the first through holes are used for communicating the cavity with the second sound absorption cavity. The second sound absorption cavity is formed in the side, away from the volute, of the first shell, and the cavity communicates with the second sound absorption cavity through the first through hole, so that the second sound absorption cavity absorbs low-frequency noise, the noise attenuation capacity is improved, and the mute performance is improved.
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