1. A fan failure detector for detecting whether a fan is locked comprising:
a drive IC, the drive IC outputting a pulse signal;
a coil electrically connected to the drive IC and being driven by the drive IC; and
an inspection circuit electrically connected to the drive IC and the coil, wherein the inspection circuit comprises:
an RC serial chargedischarge circuit serially connected between the drive IC and circuit ground and defining a first node,
a diode connected at one end to the first node and at an opposite end to a second node,
a second capacitor connected between the second node and circuit ground,
a voltage divider connected between the second node and circuit ground and further defining a third node; and
a transistor having an output terminal with the third node connected as a control input of the transistor and, wherein when the fan operates normally, the output terminal outputs a low voltage signal, and when the fan locks, the second capacitor discharges through the voltage divider and enables the transistor to switch into an off state, thereafter the drive IC outputs the pulse signal to enable the diode into conduction and charge the second capacitor, and owing to the design of the voltage divider, the off state of the transistor is maintained such that, the output terminal outputs a high voltage signal to avoid a wrong judgment that a fan still operates normally.
2. The fan failure detector in accordance with claim 1, wherein the RC chargedischarge circuit comprises a first capacitor and a first resistor electrically connected to the first capacitor at the first node.
3. The fan failure detector in accordance with claim 2, wherein the voltage divider comprises a second resistor and a third resistor electrically connected to the second resistor at the third node.
4. The fan failure detector in accordance with claim 1, wherein the inspection circuit further comprises a fourth resistor electrically connected to the signal output terminal of the transistor.
5. A fan failure detector for detecting whether a fan is locked comprising:
a drive IC, the drive IC outputting a pulse signal;
a coil electrically connected to the drive IC and driven by the drive IC; and
an inspection circuit is electrically connected to the drive IC and the coil, wherein the inspection circuit comprises:
an RC serial chargedischarge circuit serially connected between the drive IC and circuit ground and defining a first node,
a diode connected at one end to the first node and at an opposite end to a second node,
a second capacitor connected between the second node and circuit ground,
a voltage divider connected between the second node and circuit ground and further defining a third node; and
a transistor having an output terminal, with the third node connected as a control input of the transistor and, wherein, when the fan operates normally, the output terminal outputs a low voltage signal, when the fan locks, the output terminal outputs a high voltage signal.
6. The fan failure detector in accordance with claim 5, wherein the RC chargedischarge circuit comprises a first capacitor and a first resistor electrically connected to the first capacitor at the first node.
7. The fan failure detector in accordance with claim 6, wherein the voltage divider comprises a second resistor and a third resistor electrically connected to the second resistor at the third node.
8. The fan failure detector in accordance with claim 5, wherein the inspection circuit further comprises a fourth resistor electrically connected to the signal output terminal of the transistor.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A computer mouse with a vacuum cleaner functionality comprising:
a main mouse body comprising:
a housing;
a mouse circuit mechanism mounted in the housing; and
a vacuum cleaner combined with the main mouse body and providing a suction force, wherein the vacuum cleaner comprises a containment space.
2. The computer mouse as claimed in claim 1, wherein the vacuum cleaner in placed is the housing.
3. The computer mouse as claimed in claim 1, wherein the vacuum cleaner is connected to the mouse circuit mechanism so that the mouse circuit mechanism supplies power to the vacuum cleaner.
4. The computer mouse as claimed in claim 2, wherein the vacuum cleaner is connected to the mouse circuit mechanism so that the mouse circuit mechanism supplies power to the vacuum cleaner.
5. The computer mouse as claimed in claim 1, wherein the vacuum cleaner comprises a motor and a fan.
6. The computer mouse as claimed in claim 4, wherein the vacuum cleaner comprises a motor and a fan.
7. The computer mouse as claimed in claim 1 further comprising a containment housing to form the containment space.
8. The computer mouse as claimed in claim 7, wherein the containment housing is not removable from the main mouse body.
9. The computer mouse as claimed in claim 7, wherein the containment housing is removable from the main mouse body.