Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
2002-01-02
2003-02-25
Chervinsky, Boris L. (Department: 2835)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C361S707000, C361S709000, C361S710000, C310S091000, C310S063000, C310S064000, C310S065000
Reexamination Certificate
active
06525938
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a circuit board fixing structure of a heatsink fan, and more particularly to a circuit board of an outer pole type heatsink fan, wherein the fixing structure may be assembled and fixed easily.
2. Description of the Related Art
A conventional heatsink fan structure in accordance with the prior art shown in
FIG. 6
is disclosed in the applicant's Taiwanese Patent Publication No. 382412, comprising a base board
90
having a shaft
91
for supporting an impeller
92
to rotate. The outer periphery of the blades
93
of the impeller
92
is combined with a magnet ring
94
. The base board
90
is provided with multiple poles
95
for fixing winding coils
97
, and an outer frame
96
is mounted on the base board
90
. The magnet ring
94
may induce with the coils
97
of the base board
90
, so that the impeller
92
may be rotated, and the blades
93
may drive the air to flow. The base board
90
is provided with a controller, and a sensor
98
that may detect the variation of polarity of the magnet ring
94
.
In the conventional heatsink fan structure, the controller and the sensor
98
are fixed on the base board
90
, so that the mounting work is more inconvenient. In addition, the sensor
98
is remote from the magnet ring
94
, so that the sensor
98
cannot detect the variation of polarity of the magnet ring
94
exactly.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a circuit board fixing structure of a heatsink fan, wherein the circuit board may be fixed rapidly and conveniently.
A secondary objective of the present invention is to provide a circuit board fixing structure of a heatsink fan, wherein the sensor of the circuit board may be located at the optimum detection position of the permanent magnet of the rotor, for detecting the variation of polarity of the permanent magnet of the rotor exactly.
A further objective of the present invention is to provide a circuit board fixing structure of a heatsink fan, wherein the conducting wire of the circuit board may be fixed efficiently, thereby preventing the conducting wire from being detached from the connection point when the conducting wire is pulled.
In accordance with the present invention, there is provided a circuit board fixing structure of a heatsink fan which includes a housing having a pivot portion having a periphery provided with multiple poles. The housing is provided with a pair of positioning seats and a conducting wire receiving socket. The two positioning seats are formed with two insertion grooves. A circuit board is mounted in the insertion grooves of the positioning seats of the housing, and has a sensor and a conducting wire. The conducting wire may pass through the conducting wire receiving socket of the housing.
REFERENCES:
patent: 3829741 (1974-08-01), Athey
patent: 4992029 (1991-02-01), Harmsen et al.
patent: 6194798 (2001-02-01), Lopatinsky
patent: 6249071 (2001-06-01), Lopatinsky et al.
patent: 6265797 (2001-07-01), Horng
patent: 6291912 (2001-09-01), Nadir et al.
patent: 6400053 (2002-06-01), Horng
patent: 382412 (2002-02-01), None
Chervinsky Boris L.
Larson & Taylor PLC
Yen Sun Technology Corp.
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