Design method of anti-theft trigger switch for travel bag anti-theft device
A technology of trigger switch and travel bag, applied in the field of anti-theft trigger switch and travel bag anti-theft device, can solve the problems of large quantity, waste of resources and high cost, and achieve the effect of low fluctuation, low cost and small quantity
Inactive Publication Date: 2016-04-20
XIAN RONGHUI PATENT DEV CONSULTATION
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Problems solved by technology
[0002] There is an existing charger for charging mobile phones through four batteries. Due to the large number of batteries, ordinary alkaline batteries can only be used once. Although it is convenient for users, it brings environmental problems and wastes resources; while using rechargeable batteries The quantity is large and the cost is high
Method used
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Embodiment Construction
[0012] Such as figure 1 As shown, the mobile phone charging device includes a housing 1, a battery compartment 2 in the housing, a DC / DC boost circuit board 6 is fixed in the housing, and the input terminal of the DC / DC boost circuit board is connected to the battery compartment 2. The positive electrode 3 and the negative electrode 4 are connected, and the power output terminal of the DC / DC step-up circuit board 6 is electrically connected with the negative electrode of the battery and the corresponding electrode of the USB power interface seat 7; The single battery of V is converted into 5V voltage and supplied to the USB conversion interface with a constant current; there is a switch K1 between the power supply terminal of the DC / DC boost circuit and the battery output terminal, and the power supply terminal of the USB power interface seat is connected in series with the battery output terminal. The switch K2 and the charging circuit are connected, the switch K1 and the swi...
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The invention relates to a charging circuit, in particular to a design method of an anti-theft trigger switch for a travelling bag burglar alarm, which is convenient for travelling and is characterized in that the anti-theft trigger switch is a mercury switch, one end of the mercury switch is a cavity with big space, and the other end of the mercury switch is a spindly tube; mercury is fed into the cavity with large space, and the spindly tube is provided with two electrodes; when mercury flows through two electrodes, two electrodes are conducted; when the travelling bag is put in, the direction of the spindly tube of the mercury switch is vertical to the ground of a vehicle body; and thus, although very big vibration is generated when the vehicle travels, the shape of the spindly tube determines that mercury does not flow into the metal electrode of the spindly tube so as to prevent false alarm. The invention provides the design method of the anti-theft trigger switch for a travelling bag burglar alarm, which has low cost, is environment-friendly and does not waste resource.
Description
technical field [0001] The invention relates to a charging circuit, in particular to a design method of an anti-theft trigger switch for a travel bag anti-theft device convenient for traveling. Background technique [0002] There is an existing charger for charging mobile phones through four batteries. Due to the large number of batteries, ordinary alkaline batteries can only be used once. Although it is convenient for users, it brings environmental problems and wastes resources; while using rechargeable batteries Then the quantity is large and the cost is high. Contents of the invention [0003] The object of the present invention is to provide a design method of an anti-theft trigger switch for a travel bag anti-theft device with low cost, environmental protection and no waste of resources. [0004] The purpose of the present invention is achieved in this way, a design method of an anti-theft trigger switch for a travel bag anti-theft device, which is characterized in t...
Claims
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IPC IPC(8): A45C13/24
Inventor 刘崇朴
Owner XIAN RONGHUI PATENT DEV CONSULTATION