Air humidifier

An air humidifier, comprising:

• a housing,
• a filter screen assembly disposed within the housing and having a hollow structure,
• a fan wheel assembly correspondingly disposed relative to the hollow structure of the filter screen assembly,
• an air outlet grille correspondingly disposed relative to the fan wheel assembly and arranged on the housing,
• a water tank assembly disposed within the housing and configured to supply water to the filter screen assembly, and
• a heating assembly disposed on an air outlet path downstream of the filter screen assembly and configured to heat humidified air,
• wherein the heating assembly is disposed within the hollow structure of the filter screen assembly, and the heating assembly is arranged in a hollow cylindrical shape or a multi-annular shape.

An air humidifier, comprising:

• a housing,
• a filter screen assembly disposed within the housing and having a hollow structure,
• a fan wheel assembly correspondingly disposed relative to the hollow structure of the filter screen assembly,
• an air outlet grille correspondingly disposed relative to the fan wheel assembly and arranged on the housing,
• a water tank assembly disposed within the housing and configured to supply water to the filter screen assembly, and
• a heating assembly disposed on an air outlet path downstream of the filter screen assembly and configured to heat humidified air,
• wherein the heating assembly is disposed between the fan wheel assembly and the air outlet grille, and the heating assembly is arranged in an annular shape.

An air humidifier, comprising:

• a housing,
• a filter screen assembly disposed within the housing and having a hollow structure,
• a fan wheel assembly correspondingly disposed relative to the hollow structure of the filter screen assembly,
• an air outlet grille correspondingly disposed relative to the fan wheel assembly and arranged on the housing,
• a water tank assembly disposed within the housing and configured to supply water to the filter screen assembly, and
• a heating assembly disposed on an air outlet path downstream of the filter screen assembly and configured to heat humidified air,
• wherein the water tank assembly comprises a water storage tank, and a first water pipe communicated with the water storage tank and extending to the filter screen assembly for water supply to the filter screen assembly, and
• wherein the fan wheel assembly comprises an air duct structure at least fitting with the filter screen assembly and the air outlet grille, and a fan wheel body disposed within the air duct structure.