CN2423673Y - Anti-theft constant-current supply unit for line of 110 alarm - Google Patents

Abstract

The utility model relates to an anti-theft constant-current supply unit for a line of 110 alarm, which belongs to the anti-theft alarm supply. The utility model is designed to solve that the service life of an accumulator of the alarm supply is short and people can not alarm when the telephone line is broken or shorted out. The utility model is characterized in that a machine shell is provided with a transformer B, a circuit board 3 is provided with a charging circuit of a limited voltage controlling accumulator E and an alarm circuit when the telephone line is broken or shorted out, and a supply joint 10, a positive and a negative electrode lines 11, 12 of a DC supply, and telephone line joints 13 and 14 are led in the outside of the side wall of the machine shell. A panel 2 is provided with a switch and an indicator light. The utility model not only can limit voltage to the accumulator E to control charging, and the service life of the accumulator can be prolonged; but also the utility model can alarm when the telephone line is broken or shorted out, and is suitable for the alarm supply using the telephone line for alarming.

Description

The antitheft constant-current supply device of 110 alarm circuits

The utility model belongs to the DC power supply class, relates generally to the burglar alarm power supply.

Each metropolitan bank of the whole nation, market, armory and enterprise are antitheft and the accident generation at present, basically all with local public security organ 110 alert service center clusters, used alarm major part is U.S. CK series of products-speech type autoalarm, this series alarm is to be connected in city's ground telephone line and the networking of 110 alarm centers, its power supply is made up of two parts, the firstth, alternating current is through the rectification supply, and another kind is the standby dry type storage battery that uses when preventing to have a power failure.The DC power supply of this series alarm finds that in use following weak point is arranged: 1: the charging circuit of standby dry type storage battery without any safeguard measure to the continual charging of storage battery, shortened the useful life of storage battery greatly, influence the operate as normal of alarm, increased expense simultaneously; 2: because 110 alarms are connected in city's phone circuit and network with 110 alarm centers, if the offender cuts off telephone line or short circuit before crime, when doing the cases generation, the alarm signal that operator on duty or automatic alarm system are sent, 110 alarm centers do not receive alarm signal and cause immeasurable consequence.Be connected in the DC power supply function singleness on 110 alarms, the alarm free function.

The purpose of this utility model: 1: change the charging circuit of the stand-by power supply-storage battery in the used DC power supply of 110 alarms, realize prolonging the useful life of storage battery; 2: during, short circuit disconnected when the telephone line that 110 alarms use, 110 alarms and 110 alarm service centres lose to report to the police and do the time spent, utilize the breaking of telephone line, short circuit and 110 alarm DC power supply to design and remedy alarm circuit.

The realization the technical solution of the utility model is: on the basis of transformer step-down, diode bridge rectification, filtering, voltage stabilizing output DC, that uses that the transformer B that is contained in the casing and transformer B output connect is contained in diode D on the wiring board to former 110 alarm power supplys by civil power 220V ₁₀-D ₁₃On another branch road of bridge rectifier outlet line integrated circuit 15, resistance R are housed ₅, diode D ₆, storage battery E, series diode D ₁-D ₄Be connected on the direct current electrode line, be contained in the voltage stabilizing didoe DW in addition on this circuit ₁With resistance R ₁With voltage stabilizing didoe DW ₂With resistance R ₂, triode BG ₁, triode BG ₂, triode BG ₃And relay J, the normally-closed contact J of relay ₁Be contained in voltage stabilizing didoe DW ₁With resistance R ₁Between, the normally opened contact J of relay ₂Be contained on the incoming line of integrated circuit 15; Link to be contained in the casing with the output DC electrode line and also have diode D on the wiring board ₁₄-D ₁₇Bridge rectifier, resistance R ₁₁, resistance R ₁₂, voltage stabilizing didoe DW ₁₁, capacitor C ₁₁Triode BG ₁₁, triode BG ₁₂, the circuit formed of NAND gate integrated package A, controllable silicon SCR, integrated package of pressure-stabilizing 4, four tones of standard Chinese pronunciation piece 5, loudspeaker Y, the diode D in this circuit ₁₄-D ₁₇The sidewall that two lead-out wires of the bridge rectifier of forming pass casing is a telephone line joint; Dc switch K in the circuit, ann reset switch, charging indicator light, operate as normal indicator light draw on the panel that is contained in casing.The power cord connector of transformer B draws on the sidewall that is contained in casing.

Describe detail of the present utility model and working condition in detail below in conjunction with embodiment and accompanying drawing thereof.

Fig. 1 is a complete machine schematic diagram of the present utility model;

Fig. 2 is a line map of the present utility model.

With reference to Fig. 1, Fig. 2, on the bottom surface in the casing 1 the transformer B that civil power 220V becomes 18V is housed, on the wiring board 3 on casing 1 bottom surface diode D is housed ₁₀-D ₁₃Bridge rectifier, the capacitor C formed ₁And capacitor C ₂Filtering and 7812 regulator blocks 6, AC-DC conversion diode D ₅Connect back composition AC power change DC power supply Deng element, the positive and negative polar curve 11,12 of direct current is drawn from the sidewall of casing 1 and is connect the positive and negative polar curve of 110 alarms, makes the direct current 12V power supply that 110 alarms are set; By diode D ₁₀-D ₁₃On another branch road of drawing on the bridge rectifier outlet line of forming, be connected with the normally opened contact J of relay J ₂, 317 integrated circuits 15, resistance R ₅, diode D ₆The storage battery E charging that the dc charging circuit of forming is formed the nickel cadmium cell of 10 joint 1.5V, the electric energy output of storage battery E is through series diode D ₁-D ₄(4001 * 4) step-down is connected on the DC leadout road after AC power becomes direct current; Be contained in the 12V voltage stabilizing didoe DW on the charging circuit ₁With the 3.3K resistance R ₁With 15V voltage stabilizing didoe DW ₂With the 3.3K resistance R ₂, 9013 triode BG ₁, 9013 triode BG ₂With 8050 triode BG ₃, relay J and its normally-closed contact J ₁Be contained in 12V voltage stabilizing didoe DW ₁With the 3.3K resistance R ₁Between, normally opened contact J ₂Be contained in the charging pressure limiting control circuit of storage battery E when forming on the input end line of 317 integrated circuits 15 in this circuit; Be contained in linking on the wiring board 3 in the casing 1, by 4001 diode D with direct current electrode line 11 ₁₄-D ₁₇The bridge rectifier of forming is through resistance R ₁₁, the 2K resistance R ₁₂Step-down, 12V voltage stabilizing didoe DW ₁₁Voltage stabilizing, capacitor C ₁₁Filtering, 9014 triode BG ₁₁, 9013 triode BG ₁₂, after elements such as 4011 NAND gate integrated package A, controllable silicon SCR, 7805 integrated package of pressure-stabilizing, 4,9561 four tones of standard Chinese pronunciation pieces 5, loudspeaker Y connect, form when telephone line breaks, remedy alarm circuit, diode D during short circuit ₁₄-D ₁₇Two terminal wire that the bridge rectifier of forming is drawn lead to telephone line joint 13,14 through casing 1 sidewall; Dc switch K in this device circuit, ann reset switch 7, charging indicator light 8, operate as normal indicator light 9 draw on the panel 2 that is contained in casing 1; The power cord connector 10 of transformer B draws on the sidewall that is contained in casing 1.

The antitheft constant-current supply device of the utility model 110 alarm circuits is when using, power connection on this apparatus housing 1 sidewall 10 is connect the 220V civil power, DC power supply on casing 1 sidewall is exported positive and negative polar curve 11,12 and is connect telephone line joint 13,14 on 110 alarm power lines, casing 1 sidewall line of answering the call, remedying loudspeaker on the alarm circuit also can draw and be contained in relevant section office and the relevant personnel family, attaching finish errorless after, this device promptly enters operating state, when alternating current change direct current uses for 110 alarms, also storage battery E is charged.When mains failure, storage battery E powers to 110 alarms, and incoming call back is by AC-powered, because of mains failure uses storage battery E power supply, and when storage battery E voltage is lower than 12V, the voltage stabilizing didoe DW on the control circuit of charging circuit ₁, diode DW ₂Do not puncture triode BG ₁The base stage no-voltage ends, triode BG ₂, triode BG ₃Conducting, relay adhesive, relay normally-closed contact J ₁Disconnection, normally opened contact J ₂Adhesive is through diode D ₁₀-D ₁₃Power supply behind the bridge rectifier is through contact J ₂ Integrated circuit 15 and resistance R ₅, diode D ₆Charge to storage battery E.When storage battery E is charged to 15V, voltage stabilizing didoe DW ₂Puncture conducting, triode BG ₁Base stage must conduct, triode BG ₂, triode BG ₃End, relay J discharges, and charging stops; When storage battery E voltage is higher than 12V and is lower than 15V, voltage stabilizing didoe DW ₁Puncture triode BG ₁Conducting, triode BG ₂, triode BG ₃End, storage battery E does not charge; Be connected in the alarm circuit of remedying on the telephone line, do not open circuit and during short circuit, two joints of telephone wire are through diode D when telephone line has ₁₄-D ₁₇After bridge circuit polarity is differentiated, through resistance R ₁₁, resistance R ₁₂Step-down, voltage stabilizing didoe DW ₁₁Voltage stabilizing, capacitor C ₁₁Triode BG is given in filtering ₁₁Provide voltage and conducting, triode BG ₁₂End, a, the b pin of NAND gate integrated package A have high potential, the z pin has electronegative potential, not conducting of controllable silicon SCR and alarm free sound, when the offender telephone line open circuit, during short circuit, 110 alarms and 110 alarm centers are out of touch, and DC power supply was remedied alarm circuit and started this moment, be that telephone line does not have electricity, triode BG ₁₁Base stage no-voltage and end triode BG ₁₂Conducting, the b pin electronegative potential of NAND gate integrated package A, a pin high potential, z pin output high potential, the controllable silicon SCR conducting, it is electric through regulator block 4 four tones of standard Chinese pronunciation piece 5 to be got, and makes the loudspeaker Y of multi pack in relevant section office and relevant personnel family send chimes of doom.After telephone line is repaired, be installed in the ann reset switch 7 on casing 1 panel 2, chimes of doom is eliminated.

Advantage of the present utility model: 1: owing to adopted Zener diode reverse in the charging circuit of battery The pressure limiting control circuit of breakdown characteristics charges when making battery E voltage be lower than lower pressure limiting, when being higher than pressure limiting Stop charging, realized the interval charging, prevented from overcharging, protected battery E, prolonged service life, Guaranteed security of operation; 2: owing to set up the alarm circuit of remedying that connects telephone wire in this device, work as electricity Talk about circuit just often, alarm free sound. If the offender is disconnected the telephone wire of 110 alarm networks, short circuit is laggard During the row criminal activity, this device just because telephone wire is disconnected, chimes of doom is sent in short circuit, can in time adopt the relevant personnel Getting measure, reduce entire loss, is a kind of auxiliary the rescue warning systems of 110 alarms after out of control.

Claims (2)

1: by the transformer (B), the diode (D that are contained in the casing (1) ₁₀-D ₁₃) bridge rectifier, the electric capacity (C that form ₁), electric capacity (C ₂) filtering, voltage stabilizing, AC-DC conversion diode (D ₅) wait element to connect to draw casing (1) sidewall outward for the positive and negative polar curve of direct current (11), (12) and from diode (D ₁₀-D ₁₃) the antitheft constant-current supply device of 110 alarm circuits that bridge rectifier line output storage battery (E) the charging supply line of drawing forms, it is characterized in that transformer (B) output that is contained in the casing (1) is associated with the diode (D that is contained on the wiring board (3) ₁₀-D ₁₃) the bridge rectifier circuit, integrated circuit (15), resistance (R are housed on the output branch road of this circuit ₅), diode D ₆, storage battery (E), series diode (D ₁-D ₄) be connected on the direct current electrode line (11), be contained in the voltage stabilizing didoe (DW in addition on this circuit ₁) and resistance (R ₁) and voltage stabilizing didoe (DW ₂) and resistance (R ₂), triode (BG ₁), triode (BG ₂) triode (BG ₃) and relay (J), the normally-closed contact (J of relay (J) ₁) be contained in voltage stabilizing didoe (DW ₁) and resistance (R ₁) between, the normally opened contact J of relay ₂Be contained on the incoming line of integrated circuit (15); Link to be contained in the casing (1) with direct current electrode line (11) and also have diode (D on the wiring board (3) ₁₄-D ₁₇) bridge rectifier, through resistance (R ₁₁), resistance (R ₁₂), voltage stabilizing didoe (DW ₁₁), electric capacity (C ₁₁), triode (BG ₁₁) triode (BG ₁₂), NAND gate collection or piece (A), controllable silicon (SCR), integrated package of pressure-stabilizing (4), four tones of standard Chinese pronunciation piece (5), loudspeaker (Y) form circuit, the diode (D in this circuit ₁₄-D ₁₇) two lead-in wires of the bridge rectifier formed, passing casing (1) sidewall is telephone line joint (13), (14); Dc switch in the circuit (K), ann reset switch (7), charging indicator light (8), operate as normal indicator light (9) draw on the panel (2) that is contained in casing.The power cord connector (10) of transformer (B) draws on the sidewall that is contained in casing (1).

2: the antitheft constant-current supply device of 110 alarm circuits according to claim 1 is characterized in that described loudspeaker (Y) can be contained in the outside of casing (1).

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