Inflatable pump
View Patent ↗An inflatable pump has a housing and a core disposed in the housing. The housing has a core chamber, an inlet at an end of the core chamber, a fan chamber with a volute chamber at the other end of the core chamber, and an outlet fluidly communicating with the fan chamber. The core is disposed in the core chamber and a fan wheel of an electric motor thereof is disposed in the fan chamber. When the electric motor is turned on, the fan wheel is driven to spin to direct air entering the housing from the inlet. Heat around the core is carried by the air passing the core and is directed into the volute chamber of the fan chamber, and is rapidly cast out from the housing via the outlet by a vortical flow generated by the rotation of the fan wheel in the volute chamber.
1 . An inflatable pump comprising:
a housing comprising:
a separating wall formed in the housing to separate an interior of the housing into a storage chamber, a core chamber, and a fan chamber; and
an inlet formed through a side of the housing and fluidly communicating with the core chamber at one of two ends of the core chamber;
an outlet formed through another side of the housing and fluidly communicating with the fan chamber;
the fan chamber fluidly communicating with the core chamber at the other one of the two ends of the core chamber;
a volute chamber facing toward the outlet formed in the fan chamber; and
the inlet fluidly communicating with the outlet via the core chamber and the fan chamber to form a flowing passage in the housing;
a core disposed in the core chamber of the housing and extending into the fan chamber, the core comprising:
a casing base comprising:
a base portion having two ends;
a rear portion formed at one of the two ends of the base portion;
a transmission space formed between the rear portion and the base portion;
a cylinder portion formed at the rear portion, extending away from the base portion, and having a connection end portion; and
two triangular sidewall portions respectively formed at two opposite sides of the transmission space between the base portion and the rear portion, extending from the rear portion to the other one of the two ends of the base portion;
a casing cover detachably and tightly disposed on the casing base and closing the transmission space;
an electric motor, disposed at the base portion of the casing base, comprising a rotor having one of two ends extending into the transmission space of the casing base;
a piston rod disposed in the cylinder portion of the casing base and extending into the transmission space of the casing base;
a transmission set disposed in the transmission space of the casing base and connected between the piston rod and the rotor of the electric motor;
an inflation adapter disposed at the connection end portion of the cylinder portion of the casing base; and
a fan wheel disposed in the volute chamber in the fan chamber of the housing and disposed at the other one of the two ends of the rotor of the electric motor.
2 . The inflatable pump as claimed in claim 1 , wherein an internal surface of the fan chamber is formed as a volute guide plate for forming the volute chamber facing toward the outlet within the fan chamber.
3 . The inflatable pump as claimed in claim 1 , wherein a volute wind cover is disposed in the fan chamber of the housing, and the volute chamber facing toward the outlet is within the volute wind cover.
4 . The inflatable pump as claimed in claim 1 , wherein the housing comprises a through hole formed through the side of the housing with the inlet and fluidly communicating with the core chamber.
5 . The inflatable pump as claimed in claim 1 , wherein one of a power storage unit and an electric cable with a plug is electrically connected to the electric motor and is disposed in the storage chamber of the housing.
6 . The inflatable pump as claimed in claim 2 , wherein one of a power storage unit and an electric cable with a plug is electrically connected to the electric motor and is disposed in the storage chamber of the housing.
7 . The inflatable pump as claimed in claim 3 , wherein one of a power storage unit and an electric cable with a plug is electrically connected to the electric motor and is disposed in the storage chamber of the housing.
8 . The inflatable pump as claimed in claim 4 , wherein one of a power storage unit and an electric cable with a plug is electrically connected to the electric motor and is disposed in the storage chamber of the housing.
9 . The inflatable pump as claimed in claim 1 , wherein the casing cover is secured on the casing base via snap-fit joints.
10 . The inflatable pump as claimed in claim 2 , wherein the casing cover is secured on the casing base via snap-fit joints.
11 . The inflatable pump as claimed in claim 3 , wherein the casing cover is secured on the casing base via snap-fit joints.
12 . The inflatable pump as claimed in claim 4 , wherein the casing cover is secured on the casing base via snap-fit joints.
13 . The inflatable pump as claimed in claim 1 , wherein
the transmission set comprises a driving gear and a driven gear;
the driving gear is disposed at the rotor of the electric motor;
the driven gear is rotatably disposed at the base portion of the casing base and engages with the driving gear; and
the piston rod is eccentrically connected to and is pivotable relative to the driven gear.
14 . The inflatable pump as claimed in claim 5 , wherein
the electric motor comprises a motor housing having at least one ventilation hole formed through a side of the motor housing facing toward the base portion;
the rotor is disposed in the motor housing;
the casing base has a propped block formed on a side of the base portion facing away from the transmission space to form at least one exhausting zone next to the propped block;
the propped block abuts against the motor housing; and
the at least one ventilation hole corresponds to the at least one exhausting zone in position.
15 . The inflatable pump as claimed in claim 9 , wherein
the electric motor comprises a motor housing having at least one ventilation hole formed through a side of the motor housing facing toward the base portion;
the rotor is disposed in the motor housing;
the casing base has a propped block formed on a side of the base portion facing away from the transmission space to form at least one exhausting zone next to the propped block;
the propped block abuts against the motor housing; and
the at least one ventilation hole corresponds to the at least one exhausting zone in position.
16 . The inflatable pump as claimed in claim 14 , wherein
the propped block is a cruciform block with four arms;
the rotor of the electric motor is supported at a center of the propped block; and
a respective said exhausting zone is formed between each adjacent two of the four arms.