US 11,680,574 B2
Blower
Peng Zhou, Nanjing (CN); and Toshinari Yamaoka, Nanjing (CN)
Assigned to Nanjing Chervon Industry Co., Ltd., Nanjing (CN)
Filed by Nanjing Chervon Industry Co., Ltd., Nanjing (CN)
Filed on Mar. 1, 2021, as Appl. No. 17/188,365.
Claims priority of application No. 202010190105.3 (CN), filed on Mar. 18, 2020.
Prior Publication US 2021/0293248 A1, Sep. 23, 2021
Int. Cl. F04D 27/00 (2006.01); F04D 25/06 (2006.01); F04D 29/32 (2006.01); F04D 29/40 (2006.01); F04D 19/00 (2006.01); A01G 20/47 (2018.01); B08B 5/02 (2006.01); B08B 13/00 (2006.01)
CPC F04D 27/004 (2013.01) [A01G 20/47 (2018.02); B08B 5/02 (2013.01); B08B 13/00 (2013.01); F04D 19/002 (2013.01); F04D 25/06 (2013.01); F04D 25/0673 (2013.01); F04D 29/325 (2013.01); F04D 29/403 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A blower, comprising:
a housing;
a fan arranged in the housing;
a motor arranged in the housing and connected to the fan; and
a speed regulator assembly to control a rotational speed of the motor comprising a switch coupled to the motor to control an operation of the motor, a control member rotatably connected with the housing to control the switch and an actuating member rotatably connected with the housing to control the switch,
wherein the actuating member moves between an off state and an on state, the actuating member is capable of moving to a predefined limit position in the on state, the rotational speed of the motor corresponding to the predefined limit position is a predefined rotational speed, the motor stops running when the actuating member is in the off state, and the motor rotates when the actuating member is in the on state,
wherein the control member comprises a first control state and a second control state, the motor runs at a maximum rotational speed greater than the predefined rotational speed when the control member is in the second control state, the motor runs at an intermediate speed lower than the maximum rotational speed when the control member is in the first control state, the control member drives the actuating member to move from the off state to the on state during a transition from an initial state to the first control state, and the actuating member does not cross the predefined limit position when the control member switches from the first control state to the second control state, and
wherein when the actuating member is moving to the predefined limit position, the motor runs at a predefined rotational speed that is lower than the maximum rotational speed.