Fan having a printed circuit board
Assigneeebm-papst St. Georgen GmbH & Co. KG
InventorRodica Peia
Life of this patent
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Abstract
A fan (20) has: a motor having a stator (40) and having a rotor (60) with at least one fan blade; at least one air inlet having an air entrance opening (102) for the inlet of air; at least one air outlet having an air exit opening (32) for the outlet of air; a circuit board (80) having at least one recess, which circuit board (80) is arranged in the region of the air inlet in such a way that air can enter the fan (20) through the recess, motor electronics (88) being arranged on the circuit board (80). In a preferred embodiment, a Negative Temperature Coefficient (NTC) resistor (84) is surface-mounted on a PC board portion (83) extending into the air passage, to thereby sense air temperature. This facilitates compact, automated construction.
Claims60
A fan (20) comprising:
- a motor having a housing (22, 24), a stator (40) and a rotor (60) with at least one fan blade (68);
- said housing defining at least one air inlet (29) having
- an air entrance opening (30, 102) for the inlet of air and at least one air outlet (37) having an air exit opening (32) for the outlet of air (31);
- a circuit board (80) having at least one recess (89), which circuit board (80) is arranged adjacent the air inlet (29) in such a way that air can enter the fan (20) through the recess (89),
- motor electronics (88) being arranged on the circuit board (80).
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The fan according to
- wherein
- the at least one air outlet (37) is formed with an air exit opening (32) for the radial outlet of air (31).
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Dependencies are inferred from the claim text.