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US 8,133,005 B2Granted
Blower
AssigneeDelta Electronics, Inc.
InventorsWei-Chun Hsu, Shun-Chen Chang, Wen-Shi Huang
Life of this patent
Estimating the term…
Abstract
A blower includes a housing and a plurality of impellers. The impellers are disposed in the housing, and a mutual air-gathering passage is formed between the impellers and the housing. Compared to the prior art, the mutual air-gathering passage of the blower of the present invention can collect the airflow and stabilize the airflow. Thus, the air pressure at the air outlet is increased, and the overall airflow performance is improved.
Claims20
A blower, comprising:
- a single housing having a plurality of flange portions;
- a first impeller and a second impeller disposed in the single housing, wherein a mutual air-gathering passage is formed between the first and second impellers and the single housing, wherein airflow outputs of the first and second impellers are interlinked in the mutual air-gathering passage, at least one of the first and second impellers has a plurality of blades, and end terminals of the flange portions are above the blades;
- a plurality of motors, wherein each of the impellers is driven by a corresponding one of the motors, and the impellers are located on a same surface of the single housing;
- and
- a blocking member disposed in the housing and between the first and second impellers, wherein an end terminal of the blocking member is not connected to a side wall of the housing so as to form a passage therebetween so that a part of the airflow from first impeller flows toward the second impeller.
2 more elements
A blower comprising:
- a housing having a plurality of air inlets and a plurality of flange portions;
- a plurality of impellers disposed in the housing and corresponding to the plurality of air inlets, respectively, wherein a mutual air-gathering passage is formed between the plurality of impellers and the housing, and airflow outputs of the impellers are interlinked in the mutual air-gathering passage;
- a blocking member disposed in the housing and between the impellers, wherein an end terminal of the blocking member is not connected to a side wall of the housing so as to form a passage therebetween so that a part of the airflow from one of the impeller flows toward the other one of the impellers,
- wherein each of the impellers has a hub and a plurality of blades outside on the bottom of the hub, the top of the hub faces the corresponding air inlet, and the tops of the blades are lower than the top of the hub, and
- wherein each of the flange portions is disposed at each of the air inlets and has a curved shape, and extended toward an inner side of the single housing close to tops of the blades of each of the impellers, and end terminals of the flange portions are above the blades.
2 more elements
Dependencies are inferred from the claim text.