CN2371288Y - Intelligent card door lock - Google Patents
Intelligent card door lock Download PDFInfo
- Publication number
- CN2371288Y CN2371288Y CN 99205635 CN99205635U CN2371288Y CN 2371288 Y CN2371288 Y CN 2371288Y CN 99205635 CN99205635 CN 99205635 CN 99205635 U CN99205635 U CN 99205635U CN 2371288 Y CN2371288 Y CN 2371288Y
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- CN
- China
- Prior art keywords
- door lock
- capacitor
- circuit
- resistance
- door
- 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
The utility model relates to an intelligent card door lock, which is composed of a CPU, a control circuit and a door lock mechanism. The control circuit is composed of an energy storing element capacitance, a charging circuit overlapped by transistors, a field effect tube and a photoelectric coupler which are connected. The photoelectric coupler receives control signals generated by the CPU and controls on and off of the field effect tube, and therefore, the capacitance can discharge to a motor of the door lock mechanism through the field effect tube to control opening and closing a door bolt. The utility model can be used for places, such as intelligent mansions, modern hotels, government institutions, etc. The utility model has the advantages of safe and convenient operation and high reliability.
Description
The utility model relates to the electronic lock of a kind of smart card control, more specifically says so about the smart card door lock.At present, in the drive circuit of smart card door lock, generally adopt an on-off circuit, load inserted power supply, wait out (pass) door action finish after with dump.During sort circuit work,, can cause supply voltage to descend owing to motor, electromagnet will be drawn bigger electric current from power supply, particularly serious to the door lock influence of dry cell power supply, also can bring interference simultaneously to circuit, make the reliability decrease of circuit.
The purpose of this utility model is to overcome shortcoming of the prior art, provides a kind of and can prolong the power supply power-on time, improves the smart card door lock of whole door-locking system reliability.
The purpose of this utility model can be achieved by following technical scheme.
Smart card door lock of the present utility model is made up of CPU, control circuit and door lock mechanism.CPU and I/O hold the control signal that the open and close door is provided for control circuit, and control circuit produces the motor of drive door lock mechanism and finishes the action of open and close door.Control circuit is made up of the open the door circuit and the circuit of closing the door, and the open and close gate circuit is that symmetric circuit connects.The circuit that opens the door is made up of transistor Q3, capacitor C 3, technotron Q1 and photoelectrical coupler O2; The emitter stage of transistor Q3 and power supply V
CCBe connected, its colelctor electrode is connected with the anode of capacitor C 3 and the drain electrode of FET Q1, is serially connected with resistance R 3, R4 between the colelctor electrode of transistor Q3 and the base stage, junction and the power supply V of resistance R 3 and R4
CCBetween cross-over connection capacitor C 2 is arranged, the negative electrode of capacitor C 3 is connected with the source electrode of FET Q2 and is connected with the motor of door lock mechanism as an output of control circuit, for the motor of door lock mechanism provides the driving signal that opens the door.Be serially connected with check element D1 between the negative and positive of capacitor C 3 and ground wire, the photoelectric tube side one tunnel of photoelectrical coupler O2 connects the control utmost point of FET, and another road meets power supply V
CC, the luminous tube side is leaded up to resistance R 7 and is linked with+5V voltage-stabilized power supply, and another road connects the I/O control end of CPU, in source electrode and the cross-over connection of control interpolar of FET Q1 resistance R 5 is arranged.FET Q2, transistor Q4, capacitor C 4, photoelectrical coupler O1, capacitor C 1, check element D2, resistance R 1, R2, R3, R6, R8 adopt the method for attachment identical with the circuit that opens the door to form the pass gate circuit.
Power supply V
CCCan adopt the dry cell of 6V, 9V or the several standards of 12V.
The appearance value scope of capacitor C 3, C4 is 3200 μ F～3500 μ F, the appearance value scope of capacitor C 1, C2 is 47 μ F～470 μ F, the Standard resistance range of resistance R 1, R2, R3, R4 is 4.7K Ω～200K Ω, the Standard resistance range of R5, R6 is 100K Ω～500K Ω, and the Standard resistance range of R7, R8 is: 100 Ω～500 Ω.
Below in conjunction with accompanying drawing the utility model is described further.
Accompanying drawing is the circuit diagram of the utility model control circuit.
Among the figure: Q1, Q2 are technotron, and Q3, Q4 are transistor, and C3, C4 are the bigger electric capacity of appearance value, and O1, O2 are photoelectrical coupler, and D1, D2 are the check element, and C1, C2 are electric capacity, and R1～R8 is a resistance.Transistor Q3 and resistance R 3, R4 and capacitor C 2 constitute the charging circuit of capacitor C 3; Transistor Q4 and capacitor C 1, resistance R, R2 constitute the charging circuit of capacitor C 4; The I/O output of the input termination CPU of photoelectrical coupler O1, O2 receives the open and close gate control signal that CPU sends, and is used to control the duty of FET Q1, Q2, simultaneously CPU and control circuit is kept apart.During FET Q1, Q2 work, receive C3, C4 capacitor discharge respectively, provide drive current to finish the action of open and close door for the motor of door lock mechanism by source electrode.The concrete course of work is: when CPU sends enabling signal by the I/O end, and photoelectrical coupler O1 saturation conduction, FET Q1 saturation conduction, capacitor C 3 is by the motor discharge of FET Q1 to door lock mechanism, and motor is just changeing opens bolt.After opening the door, FET Q1, photoelectrical coupler O1 end, and it is ready that transistor Q3 is charged as action next time to C3.When CPU sends the pass gate signal, photoelectrical coupler O2 and FET Q2 saturation conduction, capacitor C 4 is closed bolt by FET Q2 to motor discharge, the motor counter-rotating of door lock mechanism; Close behind the door, FET Q2 and photoelectrical coupler O2 end, and it is ready that transistor Q4 is charged as action next time to capacitor C 4.
The utility model compared with prior art has following advantage:
Owing in control circuit, increased the energy storing structure take the bigger capacitor C 3 of appearance value, C4 as core, made the usefulness of motor Electricity peak and CPU peak of power consumption stagger, and have avoided the power supply interference, and photoelectrical coupler O1, O2 are with CPU and control simultaneously Circuit separates, and has reduced the circuit signal interference, thereby has improved the reliability of whole door-locking system, has prolonged the use longevity of battery Life.
Use the intelligent card door lock of prior art, about complete machine operating current 200mA, the switch gate action idol namely occurs 5000 times So do not open the door or do not close the door phenomenon. And use intelligent card door lock of the present utility model, and with the new alkaline battery of the same trade mark, the work electricity Flow only 60mA, switch gate action connect can reach more than 10,000 times can not occur not opening the door, the phenomenon of not closing the door.
Claims (4)
1. a smart card door lock is made up of CPU, control circuit and door lock mechanism; CPU and I/O end provide the open and close control signal for control circuit; The drive motors of the output termination door lock mechanism of control circuit, it is characterized in that described control circuit is made up of the open the door circuit and the circuit of closing the door, the circuit that opens the door is the identical symmetric circuit of structure with closing gate circuit, and the described circuit that opens the door is made up of transistor Q3, capacitor C 3, technotron Q1 and photoelectrical coupler O2; The emitter stage of transistor Q3 and power supply V
CCThe connection that links, colelctor electrode is connected with the anode of capacitor C 3 and the drain electrode of FET Q1, is serially connected with resistance R 3, R4 between colelctor electrode and base stage, the junction of resistance R 3 and R4 and power supply V
CCBetween cross-over connection capacitor C 2 is arranged; The output that the negative electrode of capacitor C 3 and the source of FET Q2 are connected mutually as control circuit is connected with the drive motors of door lock mechanism, and another output that the source electrode of FET Q1 is connected with the negative electrode of capacitor C 4 as control circuit is connected with the drive motors of door lock mechanism; Be serially connected with check element D1 between the negative electrode of capacitor C 3 and ground wire, the photoelectric tube side one tunnel of photoelectrical coupler O2 connects the control panel of FET, and another road connects the I/O control end of CPU; Also cross-over connection has resistance R 5 between the source electrode of FET Q1 and the control utmost point.
2. smart card door lock according to claim 1 is characterized in that described power supply V
CCCan adopt the dry cell of 6V, 9V or the several standards of 12V.
3. smart card door lock according to claim 1 is characterized in that the appearance value scope of described capacitor C 3, C4 is: 3200 μ F～3500 μ F.
4. smart card door lock according to claim 1 is characterized in that the Standard resistance range of described resistance R 1, R2, R3, R4 is: 4.7K Ω～200K Ω; The appearance value scope of capacitor C 1, C2 is: 47 μ F～470 μ; The Standard resistance range of resistance R 5, R6 is: 100K Ω～500K Ω; The Standard resistance range of resistance R 7, R8 is: 100 Ω～500 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99205635 CN2371288Y (en) | 1999-03-18 | 1999-03-18 | Intelligent card door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99205635 CN2371288Y (en) | 1999-03-18 | 1999-03-18 | Intelligent card door lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2371288Y true CN2371288Y (en) | 2000-03-29 |
Family
ID=34000147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99205635 Expired - Fee Related CN2371288Y (en) | 1999-03-18 | 1999-03-18 | Intelligent card door lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2371288Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566023B (en) * | 2009-05-27 | 2012-07-25 | 保定市硕成科技有限公司 | Electronic lock with high key secret rate for box |
| CN115497204A (en) * | 2022-09-23 | 2022-12-20 | 泉州砾鹰石科技有限公司 | Circuit for preventing strong magnetic interference from causing failure of access control system |
-
1999
- 1999-03-18 CN CN 99205635 patent/CN2371288Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566023B (en) * | 2009-05-27 | 2012-07-25 | 保定市硕成科技有限公司 | Electronic lock with high key secret rate for box |
| CN115497204A (en) * | 2022-09-23 | 2022-12-20 | 泉州砾鹰石科技有限公司 | Circuit for preventing strong magnetic interference from causing failure of access control system |
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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 |