CN2845044Y - Mobile phone burglar alarm - Google Patents
Mobile phone burglar alarm Download PDFInfo
- Publication number
- CN2845044Y CN2845044Y CN 200520133624 CN200520133624U CN2845044Y CN 2845044 Y CN2845044 Y CN 2845044Y CN 200520133624 CN200520133624 CN 200520133624 CN 200520133624 U CN200520133624 U CN 200520133624U CN 2845044 Y CN2845044 Y CN 2845044Y
- Authority
- CN
- China
- Prior art keywords
- mobile phone
- switch
- triode
- phone
- integrated circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A kind of mobile phone burglar alarm, comprise cell-phone cover, mobile phone, it is characterized in that: be provided with the magnetic control electronic alarm circuit in the described mobile phone, described magnetic control electronic alarm circuit is made up of music integrated circuit, loudspeaker, anti-theft switch and magnetic switch: music integrated circuit, mobile phone speaker, anti-theft switch are connected in series with magnetic switch, are provided with magnet piece in the described cell-phone cover; The utility model characteristics are that the alarm volume is little, and cost is low, are integrated with mobile phone, do not influence cell phone appearance, and are esy to use, safe and reliable.
Description
One, technical field
The utility model relates to a kind of anti-theft device, specifically a kind of mobile phone burglar alarm
Two, background technology
Fast development along with electronic information technology, mobile phone has become indispensable communication tool in people's daily life, it is little that it has a volume, convenient carrying, also there is stolen easily shortcoming simultaneously, though people have also taked some as Antistealing measures such as mobile phone chain, cell-phone covers to mobile phone, still can not play the effect of Antistealing in the intensive place of personnel.
Three, summary of the invention
The mobile phone burglar alarm that provides a kind of energy convenient and practical, safe and reliable is provided the purpose of this utility model.When mobile phone was stolen, it can in time send caution to mobile phone machine master, had avoided mobile phone stolen.
For achieving the above object, the technical scheme that the utility model adopted is:
The utility model comprises cell-phone cover, mobile phone, is characterized in being provided with in the described mobile phone magnetic control electronic alarm circuit, and described magnetic control electronic alarm circuit is to comprise music integrated circuit, mobile phone speaker, anti-theft switch and magnetic switch composition; Anti-theft switch is connected in series with magnetic switch; Be provided with magnet piece in the described cell-phone cover.
Principle of work of the present utility model is: the antitheft mobile phone switch is made as off-state at ordinary times, when in the intensive local time of personnel, the antitheft mobile phone switch is located at closure state, at this moment, under the magnet effect of magnetic switch in cell-phone cover, is in off-state; When mobile phone left cell-phone cover, magnetic switch transferred closure state to, and music integrated circuit powers up, and made the loudspeaker of mobile phone send warning.
The utility model characteristics are: the alarm volume is little, and loudspeaker and battery and mobile phone are shared, is integrated with mobile phone, does not influence cell phone appearance, and is esy to use, safe and reliable, practical, cost is low.
Four, description of drawings
Described in detail below in conjunction with the utility model embodiment accompanying drawing
Fig. 1 is the utility model embodiment circuit theory diagrams
Five, embodiment
With reference to Fig. 1, the utility model comprises cell-phone cover, mobile phone, be characterized in being provided with in the described mobile phone magnetic control electronic alarm circuit, described magnetic control electronic alarm circuit is made up of music integrated circuit 1, mobile phone speaker 2, anti-theft switch 3 and magnetic switch: music integrated circuit 1, loudspeaker 2, anti-theft switch 3 are connected in series with magnetic switch; Be provided with magnet piece in the described cell-phone cover.
Described magnetic switch is made up of triode 4, tongue tube 5 and resistance 6, tongue tube 5 two ends are connected with emitter with the base stage of triode 4, resistance 6 two ends are connected with collector with the base stage of triode 4, and triode 4 base stages connect anti-theft switch 3, and triode 4 emitters connect music integrated circuit 1.
The magnetic switch principle of work is: when anti-theft switch 3 was located at closure state, tongue tube 5 was in closure state under the effect of cell-phone cover magnet piece, triode 4 not conductings, and music integrated circuit 1 is not worked; When mobile phone leaves cell-phone cover, tongue tube 5 no the action of a magnetic fields and be in off-state, at this moment, and triode 4 conductings, music integrated circuit 1 work reaches the warning purpose.
Claims (2)
1, a kind of mobile phone burglar alarm, comprise cell-phone cover, mobile phone, it is characterized in that: be provided with the magnetic control electronic alarm circuit in the described mobile phone, described magnetic control electronic alarm circuit comprises music integrated circuit (1), mobile phone speaker (2), anti-theft switch (3) and magnetic switch composition; Music integrated circuit (1), mobile phone speaker (2), anti-theft switch (3) are connected in series with magnetic switch; Be provided with magnet piece in the described cell-phone cover.
2, mobile phone burglar alarm as claimed in claim 1, it is characterized in that: described magnetic switch is made up of triode (4), tongue tube (5) and resistance (6), tongue tube (5) two ends are connected with emitter with the base stage of triode (4), resistance (6) two ends are connected with collector with the base stage of triode (4), triode (4) base stage connects anti-theft switch (3), and triode (4) emitter connects music integrated circuit (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520133624 CN2845044Y (en) | 2005-10-12 | 2005-10-12 | Mobile phone burglar alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520133624 CN2845044Y (en) | 2005-10-12 | 2005-10-12 | Mobile phone burglar alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2845044Y true CN2845044Y (en) | 2006-12-06 |
Family
ID=37486988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520133624 Expired - Fee Related CN2845044Y (en) | 2005-10-12 | 2005-10-12 | Mobile phone burglar alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2845044Y (en) |
-
2005
- 2005-10-12 CN CN 200520133624 patent/CN2845044Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |