Air guide frame, fan head, and handheld concentrating fan
AssigneeShenzhen Aikuli Technology Co., Ltd
InventorMiaosheng Chen
Life of this patent
Estimating the term…
Abstract
An air guide frame, a fan head, and a handheld concentrating fan are provided. The air guide frame is configured to be arranged at an air outlet of a fan head and guide air from a fan. the air guide frame includes an inner frame and a separator ring arranged at a periphery of the inner frame; a first air channel is formed in a periphery of the separator ring; a second air channel is formed between the inner frame and the separator ring; and a wind speed of wind exported from the second air channel is greater than a wind speed of wind exported from the first air channel. Compared with the existing technology, the air guide frame having the first air channel and the second air channel can implement the wind speeds of winds blown out through the two air channels being different.
Claims13
A fan head, wherein an air inlet (24) and an air outlet (21) are provided on the fan head;
- a fan (4) and a driving assembly (6) of the fan (4) are arranged between the air inlet (24) and the air outlet (21);
- and the air outlet (21) is provided with an air guide frame (3) comprising a first air channel (32) and a second air channel (33),
- wherein the fan (4) comprises a hub (41) and at least two blades (43) arranged in a circumferential direction of the hub (41);
- each blade (43) comprises a first fan blade (433) and a second fan blade (434);
- the first fan blade (433) is connected to the hub (41);
- the second fan blade (434) is connected to the end of the first fan blade (433) that is away from the hub (41);
- the second fan blade (434) corresponds to the first air channel (32);
- and the first fan blade (433) corresponds to the second air channel (33);
- wherein an angle (γ) is provided between planes or curved surfaces on which the same side surfaces of the first fan blade (433) and the second fan blade (434) are located;
- the first fan blade (433) is a first forward swept blade region (431);
- the second fan blade (434) is a second forward swept blade region or forward blade region (432);
- and a forward-sweep angle (α) of the first forward swept blade region (431) is greater than a forward-sweep angle (β) of the second forward swept blade region or forward blade region (432);
- and
- wherein the first fan blade (433) has an end surface (421) exposed between the first forward swept blade region (431) and the second forward swept blade region or forward blade region (432), so that at least part of the second fan blade (434) is staggered from the first fan blade (433) to allow the forward-sweep angle (α) of the first forward swept blade region (431) to be greater than the forward-sweep angle (β) of the second forward swept blade region or forward blade region (432).
Dependencies are inferred from the claim text.