Humidity detection and power cut-off device
First Claim
1. A humidity detection and power cut-off device connected between a battery and a motherboard of an electronic equipment, the device comprising:
- a moisture-triggered device, comprising;
a humidity sensor for sensing an immediate ambient humidity and outputting a voltage value corresponding to the immediate ambient humidity; and
a comparison circuit for comparing the voltage value with a reference voltage corresponding to a predetermined critical humidity value to determine whether the immediate ambient humidity exceeds the predetermined critical humidity value and outputting a trigger signal if the answer is yes; and
an auto protection device, comprising;
a switch circuit for establishing or cutting off a connection between the battery and the motherboard; and
a lock circuit for receiving the trigger signal, controlling the switch circuit to cut off the connection between the battery and the motherboard, and maintaining a disconnection state between the battery and the motherboard until the battery is removed and then re-attached into the electronic equipment.
2 Assignments
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Accused Products
Abstract
A humidity detection and power cut-off device for electronic equipment is provided. The device is connected between a battery (10) and a motherboard (40) of the electronic equipment and includes an auto protection device (20) and a moisture-triggered device (30). The auto protection device is connected between the battery and the power management module and is used to establish or cut off the connection between the battery and the power management module. The moisture-triggered device is used to detect the immediate ambient humidity and controls the auto protection device. If the moisture-triggered circuit detects that the immediate ambient humidity exceeds a predetermined critical humidity value, the moisture-triggered device outputs a trigger signal to the auto protection device. The trigger signal controls the auto protection circuit to cut off a connection between the battery and the power management module, thus to achieve waterproofing protecting for the electronic equipment.
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Citations
10 Claims
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1. A humidity detection and power cut-off device connected between a battery and a motherboard of an electronic equipment, the device comprising:
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a moisture-triggered device, comprising; a humidity sensor for sensing an immediate ambient humidity and outputting a voltage value corresponding to the immediate ambient humidity; and a comparison circuit for comparing the voltage value with a reference voltage corresponding to a predetermined critical humidity value to determine whether the immediate ambient humidity exceeds the predetermined critical humidity value and outputting a trigger signal if the answer is yes; and an auto protection device, comprising; a switch circuit for establishing or cutting off a connection between the battery and the motherboard; and a lock circuit for receiving the trigger signal, controlling the switch circuit to cut off the connection between the battery and the motherboard, and maintaining a disconnection state between the battery and the motherboard until the battery is removed and then re-attached into the electronic equipment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification