CN209687049U - A kind of control circuit of electromagnetic lockset - Google Patents
A kind of control circuit of electromagnetic lockset Download PDFInfo
- Publication number
- CN209687049U CN209687049U CN201821729729.2U CN201821729729U CN209687049U CN 209687049 U CN209687049 U CN 209687049U CN 201821729729 U CN201821729729 U CN 201821729729U CN 209687049 U CN209687049 U CN 209687049U
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- China
- Prior art keywords
- normal
- open type
- relay
- circuit
- type relay
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a kind of control circuits of electromagnetic lockset, belong to electromagnetism lock control circuit field, normal-open type relay including normal switch circuit and for driving electromagnetic lockset to be opened and closed, it further include emergency button circuit, level signal driving normal-open type relay work of the normal switch circuit for external controller output makes normal-open type relay be powered, so that two contact closures of normal-open type relay, the lock tongue of electromagnetic lockset is driven to stretch out, realization is shut, emergency button circuit is used to make normal-open type relay power off when the level signal that external controller exports breaks down, the lock tongue of electromagnetic lockset is driven to withdraw so that two contacts of normal-open type relay disconnect, it realizes and unlocks；The utility model have the advantages that external controller outputs level signals break down when also can energency-unlocking, while have the advantages that electromagnetic lockset condition monitoring, time-out alarm and with camera link.
Description
Technical field
The utility model relates to electromagnetism lock control circuit field more particularly to a kind of control circuits of electromagnetic lockset.
Background technique
Electromagnetic lock be using electromagnetic principle, by the driving of the controlling and driving circuits of controller, using relay or
Other calutrons are attracted languid and realize unlocking.
The Chinese patent that Authorization Notice No. is CN206205604U discloses a kind of electromagnetism lock control circuit, including driving
Circuit and monostable circuit；Monostable circuit is connected with driving circuit, and monostable circuit is used for: in response to from vain jump for
Effective external control signal exports high level；Or in response to keeping the effective external control signal, export low electricity
Pressure；Driving circuit is used for: receiving the high level of the monostable circuit output, the work of driving electromagnetic lock executing agency, which is realized, opens
Lock；Or the low level of the monostable circuit output is received, the work for stopping electromagnetic lock executing agency keeps unlocking condition.From
And realize the holding of electromagnetic lock unlocking state.
But above-mentioned novel there is any to be disadvantageous in that: when external control circuit exports control signal and breaks down,
The driving circuit of electromagnetic lockset can not drive electromagnetic lock executing agency to work, so that the problem of electromagnetic lockset appearance can not unlock.
Utility model content
The purpose of this utility model is to provide a kind of control circuits of electromagnetic lockset, have and export electricity in external controller
Ordinary mail number break down when also can energency-unlocking the advantages of.
The above-mentioned purpose of the utility model has the technical scheme that
A kind of control circuit of electromagnetic lockset, the open type including normal switch circuit and for driving electromagnetic lockset to be opened and closed
Relay, which is characterized in that further include emergency button circuit；
The normal switch circuit drives the normal-open type relay work for the level signal of external controller output,
The normal-open type relay is set to be powered, so that two contact closures of normal-open type relay, drive the lock of the electromagnetic lockset
Tongue stretches out, and realization is shut；
The emergency button circuit is used to make the open type when the level signal that external controller exports breaks down
Relay power-off, so that two contacts of the normal-open type relay disconnect, drives the lock tongue of the electromagnetic lockset to withdraw, real
Now unlock.
Implement above-mentioned technical proposal, the level signal of external controller output makes normal switch circuit be turned on or off, from
And two contacts of normal-open type relay are opened or closed, relay driving electromagnetic lockset, which is realized, to be unlocked or shuts.Emergency is opened
Powered-down road is used to when external controller outputs level signals break down two contacts of normal-open type relay are disconnected, and realizes
The unlocking of electromagnetic lockset.
Further, the normal switch circuit includes first resistor R1, second resistance R2,3rd resistor R3 and MOS switch
The end a of pipe Q1, the coil L1 of the normal-open type relay are connected with the end VCC of external power supply, the line of the normal-open type relay
The end b of circle L1 is connect with the drain electrode of the MOS switch pipe Q1, the source electrode ground connection of the MOS switch pipe Q1, the second resistance R2
It connects with 3rd resistor R3, one end of the second resistance R2 is connected to the coil L1 and external power supply of the normal-open type relay
The end VCC connecting node on, one end of 3rd resistor R3 is connect with the source electrode of the MOS switch pipe Q1, the MOS switch pipe
The grid of Q1 is connected in the connecting node of the second resistance R2 and 3rd resistor R3, the first resistor R1 and the MOS
The grid of switching tube Q1 connects, and the level signal of external controller output is accessed by the other end of first resistor R1.
Implement above-mentioned technical proposal, external controller persistently exports grid of the high level through first resistor R1 to MOS switch pipe
The conducting of MOS switch pipe Q1 is realized in pole, and relay is normal-open type relay, therefore two contacts of relay keep closing when being powered
It closes, so that electromagnetic lockset keeps lock state.
It further, further include power protecting circuit, the power protecting circuit includes fuse F1, bipolarity transient voltage
Inhibit pipe D1, the first electrolytic capacitor C1, the second electrolytic capacitor C2 and third electrolytic capacitor C3, one end of the fuse F1 and outer
The end the VCC connection of power supply is connect, the other end of the fuse F1 inhibits one end of pipe D1 to connect with the bipolarity transient voltage,
The first electrolytic capacitor C1, the second electrolytic capacitor C2 and third electrolytic capacitor C3 inhibit to manage with the bipolarity transient voltage
D1 is in parallel.
Implement above-mentioned technical proposal, fuse F1 is increased to certain degree in the first external power supply failure, current anomaly
When, itself fusing cutting electric current, to achieve the effect that protect circuit safety operation.Bipolarity transient voltage inhibits pipe D1 to inhibit
Glitch in external power supply.
Further, the fuse F1 is polymer resettable fuse.
Implement above-mentioned technical proposal, reaches the troublesome effect for solving replacement fuse.
Further, the emergency button circuit includes the 4th resistance R4 and NPN type triode Q2, the 4th resistance R4's
One end is connect with USB socket, and the other end of the 4th resistance R4 is connect with the base stage of the NPN type triode Q2, the NPN
The emitter of type triode Q2 is grounded, and the collector of the NPN type triode Q2 is connected to the second resistance R2 and third electricity
In the connecting node for hindering R3.
Implement above-mentioned technical proposal, external controller outputs level signals failure can not export low level signal and disconnect MOS
When switching tube Q1, the base stage of NPN type triode Q2 is connected with emitter through second resistance R2 in external+5V voltage, to draw
The grid of low MOS switch pipe Q1, so that MOS switch pipe Q1 is disconnected, two contacts of relay are disconnected.
Further, the both ends of the coil L1 of the relay are parallel with rectifier diode D2, the rectifier diode D2's
Cathode is connect with the end a of the coil L1 of the relay, the coil L1 of the anode and the relay of the rectifier diode D2
The end b connection.
Implement above-mentioned technical proposal, the reversed high electricity that rectifier diode D2 is generated for the coil blackout of release relay
Pressure protects circuit element.
In conclusion the utility model has the following beneficial effects:
One, the utility model have external control circuit export control signal break down when also can energency-unlocking it is excellent
Point；
Two, the utility model is provided with power protecting circuit, has the advantages that protect circuit element.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment.
Detailed description of the invention: 1, normal switch circuit；2, power protecting circuit；3, emergency button circuit.
Specific embodiment
Below in conjunction with attached drawing, the technical solution of the utility model embodiment is described.
A kind of control circuit of electromagnetic lockset, including normal switch circuit 1 and normal-open type relay, emergency button circuit 3
And power protecting circuit 2.Level signal of the normal switch circuit 1 for external controller output drives normal-open type relay work
Make, so that normal-open type relay is powered, so that two contact closures of normal-open type relay, drive the lock tongue of electromagnetic lockset to stretch
Out, realization is shut；Emergency button circuit 3 is used in the failure of level signal that external controller export, make open type after
Appliance cut-off drives the lock tongue of electromagnetic lockset to withdraw so that two contacts of normal-open type relay disconnect, and realizes and unlocks.
It is provided with the displacement sensor of the latch bolt position information for detecting electromagnetic lockset on lock tongue, displacement sensor and outer
Controller connection is connect, external controller judges whether lock tongue is in retracted state according to the information that displacement sensor is fed back.It is external
Controller is also connected with voice driven chip, is connected with buzzer on speech chip.External controller is provided with lock tongue and keeps contracting
The maximum time threshold value for the state of returning, when the time that lock tongue remains off being greater than maximum time threshold value, external controller is logical
It crosses voice driven chip drives buzzer and issues early warning voice messaging.
As shown in Figure 1, power protecting circuit 2 includes polymer resettable fuse F1, bipolarity transient voltage inhibition pipe
D1, the first electrolytic capacitor C1, the second electrolytic capacitor C2 and third electrolytic capacitor C3, one end of polymer resettable fuse F1 with
The end VCC of external 12V power supply connects, and the other end and bipolarity transient voltage of polymer resettable fuse F1 inhibits pipe D1's
One end connection, the first electrolytic capacitor C1, the second electrolytic capacitor C2 and third electrolytic capacitor C3 inhibit with bipolarity transient voltage
Pipe D1 is in parallel.
As shown in Figure 1, normal switch circuit 1 includes first resistor R1, second resistance R2,3rd resistor R3 and MOS switch
Pipe Q1, the end a of the coil L2 of normal-open type relay are connected to the negative of polymer resettable fuse F1 and the first electrolytic capacitor C1
On the tie point of pole, the end b of the coil L2 of normal-open type relay is connect with the drain electrode of MOS switch pipe Q1, and the coil of relay
The both ends of L2 are parallel with rectifier diode D2, the end a connection of the coil L2 of the cathode and relay of rectifier diode D2, rectification two
The anode of pole pipe D2 is connect with the end b of the coil L2 of relay.The source electrode of MOS switch pipe Q1 is grounded, second resistance R2 and third
Resistance R3 series connection, one end of second resistance R2 is connected to the company of the coil L2 of normal-open type relay and the end VCC of external 12V power supply
It connects on node, one end of 3rd resistor R3 is connect with the source electrode of MOS switch pipe Q1, and the grid of MOS switch pipe Q1 is connected to second
In the connecting node of resistance R2 and 3rd resistor R3, first resistor R1 is connect with the grid of MOS switch pipe Q1, and external controller is defeated
Level signal out is accessed by the other end of first resistor R1.
As shown in Figure 1, emergency button circuit 3 includes the 4th resistance R4 and NPN type triode Q2, one end of the 4th resistance R4
The end VCC through the external 5V power supply of USB socket, the other end of the 4th resistance R4 are connect with the base stage of NPN type triode Q2, NPN type
The emitter of triode Q2 is grounded, and the collector of NPN type triode Q2 is connected to the connection of second resistance R2 Yu 3rd resistor R3
On node.
External controller is also connected with camera, and normal switch circuit 1 or emergency button circuit 3 pass through normal-open type relay
When the lock tongue of control electromagnetic lockset withdraws to realize unlocking, external controller controls camera, to surrounding's ring of electromagnetic lockset
Border carries out Image Acquisition.
The process for using of the utility model are as follows: external controller persistently exports high level through first resistor R1 to MOS switch
The grid of pipe Q1, realize MOS switch pipe Q1 conducting, relay is normal-open type relay, thus be powered when relay two touchings
Point remains closed, and the lock tongue of electromagnetic lockset is driven to stretch out, so that electromagnetic lockset keeps lock state；External controller continues
Low level is exported through first resistor R1 to the grid of MOS switch pipe Q1, realizes the disconnection of MOS switch pipe Q1, the coil of relay
Two contacts of L2 no power, relay disconnect, and the lock tongue of electromagnetic lockset is driven to withdraw, so that electromagnetic lockset is opened
Lock.External controller output level controls signal fault, when can not export low level signal disconnection MOS switch pipe Q1, the second electricity
It is opened so that the base stage of NPN type triode Q2 is connected with emitter to drag down MOS at the end VCC for hindering the external 5V power supply in one end of R2
The grid of pipe Q1 is closed, so that MOS switch pipe Q1 is disconnected, two contacts of relay are disconnected, and realize that the pressure of lockset is unlocked.
Claims (6)
1. a kind of control circuit of electromagnetic lockset, including normal switch circuit (1) and for driving the normally opened of electromagnetic lockset opening and closing
Type relay, which is characterized in that further include emergency button circuit (3)；
The normal switch circuit (1) drives the normal-open type relay work for the level signal of external controller output,
The normal-open type relay is set to be powered, so that two contact closures of normal-open type relay, drive the lock of the electromagnetic lockset
Tongue stretches out, and realization is shut；
The emergency button circuit (3) is used to make the open type when the level signal that external controller exports breaks down
Relay power-off, so that two contacts of the normal-open type relay disconnect, drives the lock tongue of the electromagnetic lockset to withdraw, real
Now unlock.
2. a kind of control circuit of electromagnetic lockset according to claim 1, which is characterized in that the normal switch circuit
It (1) include first resistor R1, second resistance R2,3rd resistor R3 and MOS switch pipe Q1, the coil L1 of the normal-open type relay
The end a be connected with the end VCC of external power supply, the leakage at the end b of the coil L1 of the normal-open type relay and the MOS switch pipe Q1
Pole connection, the source electrode ground connection of the MOS switch pipe Q1, the second resistance R2 connect with 3rd resistor R3, the second resistance
One end of R2 is connected in the connecting node at the coil L1 of the normal-open type relay and the end VCC of external power supply, 3rd resistor
One end of R3 is connect with the source electrode of the MOS switch pipe Q1, and the grid of the MOS switch pipe Q1 is connected to the second resistance R2
In the connecting node of 3rd resistor R3, the first resistor R1 is connect with the grid of the MOS switch pipe Q1, external controller
The level signal of output is accessed by the other end of first resistor R1.
3. a kind of control circuit of electromagnetic lockset according to claim 2, which is characterized in that further include power protecting circuit
(2), the power protecting circuit (2) includes that fuse F1, bipolarity transient voltage inhibit pipe D1, the first electrolytic capacitor C1, the
The end VCC of one end and external power supply of two electrolytic capacitor C2 and third electrolytic capacitor C3, the fuse F1 connects, the insurance
The other end of silk F1 inhibits one end of pipe D1 to connect with the bipolarity transient voltage, the first electrolytic capacitor C1, the second electricity
Solve capacitor C2 and third electrolytic capacitor C3 inhibits pipe D1 in parallel with the bipolarity transient voltage.
4. a kind of control circuit of electromagnetic lockset according to claim 3, which is characterized in that the fuse F1 is polymerization
Object resettable fuse.
5. a kind of control circuit of electromagnetic lockset according to claim 2, which is characterized in that the emergency button circuit
It (3) include the 4th resistance R4 and NPN type triode Q2, one end of the 4th resistance R4 is connect with USB socket, the 4th electricity
The other end of resistance R4 is connect with the base stage of the NPN type triode Q2, the emitter ground connection of the NPN type triode Q2, described
The collector of NPN type triode Q2 is connected in the connecting node of the second resistance R2 and 3rd resistor R3.
6. a kind of control circuit of electromagnetic lockset according to claim 2, which is characterized in that the coil L1 of the relay
Both ends be parallel with rectifier diode D2, the end a of the coil L1 of the cathode and relay of the rectifier diode D2 connects
It connects, the anode of the rectifier diode D2 is connect with the end b of the coil L1 of the relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821729729.2U CN209687049U (en) | 2018-10-23 | 2018-10-23 | A kind of control circuit of electromagnetic lockset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821729729.2U CN209687049U (en) | 2018-10-23 | 2018-10-23 | A kind of control circuit of electromagnetic lockset |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209687049U true CN209687049U (en) | 2019-11-26 |
Family
ID=68594425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821729729.2U Withdrawn - After Issue CN209687049U (en) | 2018-10-23 | 2018-10-23 | A kind of control circuit of electromagnetic lockset |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209687049U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109215253A (en) * | 2018-10-26 | 2019-01-15 | 苏州浪潮智能软件有限公司 | A kind of method and control circuit applied to the control of self-service device door |
-
2018
- 2018-10-23 CN CN201821729729.2U patent/CN209687049U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109215253A (en) * | 2018-10-26 | 2019-01-15 | 苏州浪潮智能软件有限公司 | A kind of method and control circuit applied to the control of self-service device door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191126 Effective date of abandoning: 20221221 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20191126 Effective date of abandoning: 20221221 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |