CN105257106A - Control circuit, control method and device of electromagnetic lock and disinfection cabinet - Google Patents
Control circuit, control method and device of electromagnetic lock and disinfection cabinet Download PDFInfo
- Publication number
- CN105257106A CN105257106A CN201510674176.XA CN201510674176A CN105257106A CN 105257106 A CN105257106 A CN 105257106A CN 201510674176 A CN201510674176 A CN 201510674176A CN 105257106 A CN105257106 A CN 105257106A
- Authority
- CN
- China
- Prior art keywords
- electromagnetic lock
- magnet
- voltage
- control
- power
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims description 27
- 230000001070 adhesive effect Effects 0.000 claims description 27
- 230000009467 reduction Effects 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 13
- 238000012423 maintenance Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 18
- 230000008859 change Effects 0.000 description 9
- 230000001105 regulatory effect Effects 0.000 description 6
- 239000003381 stabilizer Substances 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Electromagnets (AREA)
Abstract
The invention discloses a control circuit, a control method and a control device of an electromagnetic lock and a disinfection cabinet. The electromagnetic lock comprises a first magnet and a second magnet, when the electromagnetic lock is in a power-on state, the first magnet and the second magnet are in an attraction state, when the electromagnetic lock is in a locked holding state, the first magnet and the second magnet are in the attraction state, when the electromagnetic lock is in a power-off state, the first magnet and the second magnet are in a disconnection state, and the control method of the electromagnetic lock comprises the following steps: detecting that the electromagnetic lock receives a control signal; if the electromagnetic lock is detected to receive the control signal as the electrifying signal, the electrifying voltage of the electromagnetic lock is increased on the basis of the rated voltage, and the boosted voltage is obtained; and controlling the electromagnetic lock to be electrified through the boosted voltage so as to attract the first magnet and the second magnet. By the invention, the reliability of electromagnetic lock control is improved.
Description
Technical field
The present invention relates to electromagnetic lock field, in particular to a kind of control circuit of electromagnetic lock, control method and device and disinfection cabinet.
Background technology
At present, the Energy control of electromagnetic lock for sterilizing cabinet generally all adopts rated voltage to control, such as, for the direct drive type electro magnetic padlock of disinfection cabinet.The spiral winding of direct drive type electro magnetic padlock produces magnetic field after logical DC voltage, and two parts soft magnetic bodies being positioned at hub of a spool is magnetized.Because two parts soft magnetic bodies material is identical, the magnetic direction produced after being magnetized is also identical.Fig. 1 is the schematic diagram be magnetized according to the electromagnetic lock in correlation technique, as shown in Figure 1, suppose that the magnetic direction that electromagnetic lock coil produces is corresponding N pole, the left side, corresponding S pole, the right, soft magnetic bodies 1 ' and 2 ' [between nearest two very different in nature, soft magnetic bodies 1 ' right-hand member is N pole, and soft magnetic bodies 2 ' left end is S pole, produces very strong magnetic force.When soft magnetic bodies 2 ' is fixed, then the magnetic attraction produced is enough to cause soft magnetic bodies 1 ' to be moved to soft magnetic bodies 2 '.Install rear litter due to electromagnetic lock to move upward, then the magnetic attraction of electromagnetic lock is the spring force of electromagnetic lock and the litter gravity sum of electromagnetic lock.But, in the actual use procedure of electromagnetic lock, because the magnetic conductivity between soft magnetic bodies 1 ' and soft magnetic bodies 2 ' exists deviation, electromagnetic lock is when rated voltage powers on, the magnetic field that coil produces but is not enough to make two soft magnetic bodies adhesives, or electromagnetic lock is after rated voltage power-off, soft magnetic bodies is due to the left and right of remanent magnetism, two soft magnetic bodies adhesives, can not disconnect immediately, this not adhesive when occurring that part electromagnetic lock powers on, the phenomenon that during power-off, electromagnetic lock does not disconnect, has a strong impact on the production efficiency of electromagnetic lock and the reliability of product.
Control the low problem of reliability for electromagnetic lock in correlation technique, not yet propose effective solution at present.
Summary of the invention
Main purpose of the present invention is to provide a kind of control circuit of electromagnetic lock, control method and device and disinfection cabinet, controls the low problem of reliability to solve electromagnetic lock in correlation technique.
To achieve these goals, according to an aspect of the present invention, provide a kind of control method of electromagnetic lock, electromagnetic lock comprises the first magnet and the second magnet, and electromagnetic lock is when being in power-up state, first magnet and the second magnet are in attracting state, electromagnetic lock is when being in pinning hold mode, and the first magnet and the second magnet keep attracting state, and electromagnetic lock is when being in off-position, first magnet and the second magnet are in off-state, and the method comprises: detect electromagnetic lock and receive control signal; If detecting that electromagnetic lock receives control signal is power on signal, the basis of rated voltage is improved the upper piezoelectric voltage of electromagnetic lock, obtain the voltage after boosting; And powered on by the Control of Voltage electromagnetic lock after boosting, to make the first magnet and the second magnet adhesive.
Further, after detection electromagnetic lock receives control signal, method also comprises: if the time that electromagnetic lock powers on reaches Preset Time, the pinning that the basis of rated voltage reduces electromagnetic lock keeps voltage, obtains the voltage after step-down; And be in pinning hold mode by the Control of Voltage electromagnetic lock after step-down.
Further, the pinning basis of rated voltage reducing electromagnetic lock keeps voltage to comprise: the pinning maintenance voltage reducing electromagnetic lock on the basis of rated voltage according to preset ratio.
Further, the upper piezoelectric voltage basis of rated voltage being improved electromagnetic lock comprises: the upper piezoelectric voltage improving electromagnetic lock on the basis of rated voltage according to preset ratio.
Further, after detection electromagnetic lock receives control signal, the method also comprises: if detecting that electromagnetic lock receives control signal is power-off signal, obtains negative voltage; And control electromagnetic lock power-off by negative voltage, disconnect to make the first magnet and the second magnet.
To achieve these goals, according to a further aspect in the invention, provide a kind of control device of electromagnetic lock, electromagnetic lock comprises the first magnet and the second magnet, electromagnetic lock is when being in power-up state, first magnet and the second magnet are in attracting state, electromagnetic lock is when being in pinning hold mode, first magnet and the second magnet keep attracting state, electromagnetic lock is when being in off-position, first magnet and the second magnet are in off-state, and this device comprises: detecting unit, receive control signal for detecting electromagnetic lock; Boosting unit, for when electromagnetic lock being detected to receive control signal being power on signal, the basis of rated voltage is improved the upper piezoelectric voltage of electromagnetic lock, obtains the voltage after boosting; And control unit, for being powered on by the Control of Voltage electromagnetic lock after boosting, to make the first magnet and the second magnet adhesive.
Further, this device also comprises: pressure unit, after receiving control signal at detection electromagnetic lock, when the time that electromagnetic lock powers on reaches Preset Time, the pinning that the basis of rated voltage reduces electromagnetic lock keeps voltage, obtain the voltage after step-down, wherein, control unit is also for being in pinning hold mode by the Control of Voltage electromagnetic lock after step-down.
Further, the pressure unit of this device for reducing the pinning maintenance voltage of electromagnetic lock on the basis of rated voltage according to preset ratio.
Further, the boosting unit of this device for improving the upper piezoelectric voltage of electromagnetic lock on the basis of rated voltage according to preset ratio.
Further, this device also comprises: negative pressure unit, after receiving control signal at detection electromagnetic lock, when electromagnetic lock being detected to receive control signal be power-off signal, obtain negative voltage, wherein, control unit is used for controlling electromagnetic lock power-off by negative voltage, disconnects to make the first magnet and the second magnet.
To achieve these goals, according to a further aspect in the invention, additionally provide a kind of control circuit of electromagnetic lock, electromagnetic lock comprises the first magnet and the second magnet, electromagnetic lock is when being in power-up state, first magnet and the second magnet are in attracting state, electromagnetic lock is when being in pinning hold mode, first magnet and the second magnet keep attracting state, electromagnetic lock is when being in off-position, first magnet and the second magnet are in off-state, and this control circuit comprises: voltage source, for providing rated voltage; Booster circuit, for when electromagnetic lock being detected to receive control signal being power on signal, the basis of rated voltage is improved the upper piezoelectric voltage of electromagnetic lock, obtains the voltage after boosting, and powered on by the Control of Voltage electromagnetic lock after boosting, to make the first magnet and the second magnet adhesive.
Further, this control circuit also comprises: reduction voltage circuit, and when the time for powering at electromagnetic lock reaches Preset Time, the pinning that the basis of rated voltage reduces electromagnetic lock keeps voltage, obtain the voltage after step-down, and be in pinning hold mode by the Control of Voltage electromagnetic lock after step-down.
To achieve these goals, according to a further aspect in the invention, additionally provide a kind of disinfection cabinet, this disinfection cabinet comprises the control device of electromagnetic lock and electromagnetic lock.
In the present invention, be power on signal detecting that electromagnetic lock receives control signal, the basis of rated voltage is improved the upper piezoelectric voltage of electromagnetic lock, obtain the voltage after boosting, power on finally by the Control of Voltage electromagnetic lock after boosting, to make the first magnet and the second magnet adhesive.Solve electromagnetic lock in correlation technique and easily occur the problem that adhesive is not gone up after power-up, and then improve the reliability of electromagnetic lock control.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram be magnetized according to the electromagnetic lock in correlation technique;
Fig. 2 A is the schematic diagram of the control circuit of electromagnetic lock according to a first embodiment of the present invention;
Fig. 2 B is the schematic diagram of the control circuit of electromagnetic lock according to a second embodiment of the present invention;
Fig. 3 is the schematic diagram of the power control circuit of electromagnetic lock according to the embodiment of the present invention;
Fig. 4 is the schematic diagram of the magnet control circuit of electromagnetic lock according to the embodiment of the present invention;
Fig. 5 is the schematic diagram of the control method of electromagnetic lock according to the embodiment of the present invention;
Fig. 6 is the schematic diagram of the control device of electromagnetic lock according to a first embodiment of the present invention;
Fig. 7 is the schematic diagram of the control device of electromagnetic lock according to a second embodiment of the present invention; And
Fig. 8 is the schematic diagram of the control device of electromagnetic lock according to a third embodiment of the present invention.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
The application's scheme is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only the embodiment of the application's part, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the application's protection.
It should be noted that, term " first ", " second " etc. in the manual of the application and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged, in the appropriate case so that the embodiment of the application described herein.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
Embodiments provide a kind of control circuit of electromagnetic lock.
Fig. 2 A is the schematic diagram of the control circuit of electromagnetic lock according to a first embodiment of the present invention, the control circuit of electromagnetic lock is used for controlling electromagnetic lock, electromagnetic lock comprises the first magnet and the second magnet, electromagnetic lock is when being in power-up state, first magnet and the second magnet are in attracting state, and electromagnetic lock is when being in pinning hold mode, and the first magnet and the second magnet keep attracting state, electromagnetic lock is when being in off-position, and the first magnet and the second magnet are in off-state.As shown in Figure 2, the control circuit of this electromagnetic lock comprises:
Voltage source 100, for providing rated voltage.This voltage source 100 to power on required rated voltage for providing electromagnetic lock.
Booster circuit 10, for when electromagnetic lock being detected to receive control signal being power on signal, the basis of rated voltage is improved the upper piezoelectric voltage of electromagnetic lock, obtains the voltage after boosting, and powered on by the Control of Voltage electromagnetic lock after boosting, to make the first magnet and the second magnet adhesive.After electromagnetic lock switch is closed, namely produce power on signal, thus, the voltage after booster circuit 10 provides boosting after electromagnetic lock switch closes.
Voltage source 100 can adopt Switching Power Supply, and electromagnetic lock operationally, uses Switching Power Supply to provide control voltage.In Switching Power Supply to electromagnetic lock powered on moment, booster circuit 10 provides the control signal of high level.Booster circuit 10 detects that the control signal that electromagnetic lock receives high level is power on signal, boost according to certain ratio in the basis of rated voltage, such as, by the resistance of regulating resistance, the rated voltage obtaining 1.1 ~ 1.5 times is energized, and obtains the voltage after boosting.Voltage after boosting makes the voltage being applied to electromagnetic lock coil change, and causes the enhanced intensity in the magnetic field of electromagnetic lock coil.The field intensity in the magnetic field after electromagnetic lock coil strengthens makes the first magnet and the second magnet adhesive of electromagnetic lock, and the first magnet and the second magnet are in attracting state.After time delay attracting state Preset Time, electromagnetic lock adhesive completely guaranteed by booster circuit 10.
In one embodiment of the invention, the control circuit of electromagnetic lock can also comprise reduction voltage circuit, and Fig. 2 B is the schematic diagram of the control circuit of electromagnetic lock according to a second embodiment of the present invention.This embodiment can as the preferred embodiment of above-mentioned first embodiment, and as shown in Figure 2 B, the control circuit of the electromagnetic lock of this embodiment, except comprising voltage source 100 and booster circuit 10, also comprises reduction voltage circuit 20.
When reduction voltage circuit 20 reaches Preset Time for the time powered at electromagnetic lock, the pinning that the basis of rated voltage reduces electromagnetic lock keeps voltage, obtains the voltage after step-down, and is in pinning hold mode by the Control of Voltage electromagnetic lock after step-down.
In this embodiment, make the first magnet and the second magnet be in attracting state by booster circuit 10, be in after attracting state obtains Preset Time at the first magnet and the second magnet, can be powered by rated voltage.When the time detecting that electromagnetic lock powers on reaches Preset Time, perform reduced pressure operation by reduction voltage circuit 20, disconnect to make the first magnet and the second magnet.Particularly, if detect that the time that electromagnetic lock powers on reaches Preset Time, low level control signal is provided to reduction voltage circuit 20.If detect that the time that electromagnetic lock powers on reaches Preset Time, the pinning that reduction voltage circuit 20 reduces electromagnetic lock on the basis of rated voltage keeps voltage, such as, by the resistance of regulating resistance, the rated voltage obtaining 0.8 ~ 1.0 times is energized, and then obtains the voltage after step-down.Voltage after step-down makes the voltage being applied to electromagnetic lock coil change, and causes the field intensity of electromagnetic lock coil magnetic field to weaken.The field intensity in the magnetic field after being weakened by electromagnetic lock coil makes the first magnet of electromagnetic lock and the second magnet keep adhesive.
In another embodiment of the present invention, after booster circuit 10 makes the first magnet and the second magnet is in attracting state Preset Time, if it is power-off signal that reduction voltage circuit 20 detects that electromagnetic lock receives control signal, then reduction voltage circuit 20 obtains negative voltage, the coil of electromagnetic lock is made to produce opposing magnetic field, first magnet and the second magnet are demagnetized as early as possible, thus controls electromagnetic lock power-off by negative voltage, disconnect to make the first magnet and the second magnet.
The electromagnetic lock control circuit that this embodiment provides, detect that electromagnetic lock receives after control signal is power on signal, on the basis of rated voltage, the upper piezoelectric voltage of electromagnetic lock is improved by booster circuit 10, obtain the voltage after boosting, and powered on by the Control of Voltage electromagnetic lock after boosting, to make the first magnet and the second magnet adhesive.After booster circuit 10 makes the first magnet and the second magnet is in attracting state Preset Time, can be powered by rated voltage.If detect that the time that electromagnetic lock powers on reaches Preset Time, the pinning being reduced electromagnetic lock by reduction voltage circuit 20 on the basis of rated voltage keeps voltage, obtains the voltage after step-down, and is in pinning hold mode by the Control of Voltage electromagnetic lock after step-down.Alternatively, after detection electromagnetic lock receives control signal, if detecting that electromagnetic lock receives control signal is power-off signal, then reduction voltage circuit 20 obtains negative voltage, controls electromagnetic lock power-off by negative voltage, disconnects to make the first magnet and the second magnet.The embodiment of the present invention exports the voltage after boosting by booster circuit 10, and is in pinning hold mode by the Control of Voltage electromagnetic lock after reduction voltage circuit 20 step-down, reaches the effect of power saving.
The embodiment of the present invention additionally provides a kind of control circuit of electromagnetic lock, and this control circuit comprises the power control circuit of electromagnetic lock and the magnet control circuit of electromagnetic lock.Precisely do not control supply voltage in the same time by power supply, control adhesive and the off-state of the first magnet and the second magnet.It should be noted that, the control circuit of the electromagnetic lock of the embodiment of the present invention can as the preferred embodiment of the control circuit of the electromagnetic lock of first embodiment of the invention.
Fig. 3 is the schematic diagram of the power control circuit of electromagnetic lock according to the embodiment of the present invention, a part for the control circuit that this power control circuit provides as the embodiment of the present invention, as shown in Figure 3, the power control circuit of this electromagnetic lock comprises: rectifier bridge, high frequency transformer, switching power source chip, regulator block, Zener diode U1, photocoupler U2, triode Q1, triode Q2, triode Q3, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R9, resistance R10, resistance R11, resistance R12, resistance R21, electric capacity C1, electric capacity C4 and power supply MCU_IC.
In the power control circuit of this electromagnetic lock, the first end of resistance R21 is connected to the output of power supply MCU_IC, and second end of R21 is connected to the base stage 1 of triode Q1; The emitter stage 2 of triode Q1 is connected with earth terminal, and the colelctor electrode 3 of triode Q1 is connected with the first end of resistance R12 with the first end of resistance R11; The positive 5V voltage of second termination of resistance R12; Second end of resistance R11 is connected with the base stage 1 of triode Q2; The emitter stage 2 of triode Q3 is connected with earth terminal, and the colelctor electrode 3 of triode Q3 is connected with the first end of R10; The emitter stage 2 of triode Q2 is connected with earth terminal, and the colelctor electrode 3 of triode Q2 is connected with resistance R10 first end; Second end of resistance R10 is connected with the base stage 1 of triode Q1; The emitter stage 2 of triode Q1 is connected with the first end of regulator block with the first end of high frequency transformer, the first end of resistance R7, and the colelctor electrode 3 of triode Q1 is connected with the first end of resistance R8; Second end of resistance R7 is connected with earth terminal; The positive 5V voltage of second termination of regulator block, the 3rd end of regulator block is connected with the second end of high frequency transformer; The positive 310V voltage of 3rd termination of the 3rd end high frequency transformer of high frequency transformer is connected with the positive pole of electric capacity C4, and the 4th end of high frequency transformer is connected with the first end of switching power source chip; The negative pole of electric capacity C4 is connected with the output emitter stage of photocoupler U2; Rectifier bridge is connected with live wire L, zero line N, and output is connected with negative pole with the positive pole of electric capacity C4 respectively; Second end of switching power source chip is connected with the output colelctor electrode of photocoupler U2, and the electrode input end of photocoupler U2 is connected with the first end of resistance R4 with the first end of resistance R5; Second end of resistance R5 is connected with the first end of regulator block; The first end of resistance R1 is connected with the first output outputing signal Vcc, and second end of resistance R1 is connected with the first end of resistance R2; Second end of resistance R2 is connected with the first end of resistance R3 with the first end of resistance R6; The first end of resistance R6 is connected with the first end of electric capacity C1; Second end of electric capacity C1 is connected with the output 3 of second end of resistance R4, voltage-stabiliser tube and is connected with the cathode output end of photocoupler U2; The input 2 of voltage-stabiliser tube is connected with earth terminal; The first end of resistance R3 is connected with 1 end of voltage-stabiliser tube with the first end of second end of resistance R2, resistance R6, the second end ground connection of resistance R3; Second end of resistance 8 is connected with the first end of resistance R9; Second end of resistance R9 is connected with the first end of resistance R6; Resistance R1 and resistance R2 connects, and resistance R8 and resistance R9 connects.
Preferably, Switching Power Supply is used precisely to control the control power circuit output voltage of electromagnetic lock.The course of work of the booster circuit of electromagnetic lock is: at electromagnetic lock powered on moment, provides the control signal of high level to booster circuit 10.Booster circuit 10 detects that the control signal that electromagnetic lock receives high level is provided by power supply MCU_IC, now, triode Q3 conducting, triode Q1, triode Q2 end, and the feedback divider resistance of output signal Vcc is respectively resistance R9, resistance R10 and resistance R11.Carry and make the voltage of output signal Vcc in the rated voltage of 1.1 ~ 1.5 times of electromagnetic locks by the resistance of adjusting resistance R9, resistance R10 and R11, and then obtain the voltage after boosting.After time delay a period of time, guarantee electromagnetic lock adhesive, keep pinning and reduce voltage.
When after the electromagnetic lock energising regular hour, also, when the time detecting that electromagnetic lock powers on reaches Preset Time, provide low level control signal to reduction voltage circuit 20, control electromagnetic lock and be in pinning hold mode.Reduction voltage circuit 20 detects that electromagnetic lock is received low level control signal and provided by integrated circuit by power supply MCU_IC.Now, triode Q3 ends, triode Q1, triode Q2 conducting, and the feedback divider resistance of output signal VCC is respectively resistance R1, resistance R2, resistance R8 and resistance R9.Wherein, resistance R1 and resistance R2 connects and to obtain the first series connection result, and resistance R8 and resistance R9 connects and to obtain the second series connection result, afterwards the first series connection result and the second series connection result is carried out parallel resistance that parallel connection draws and dividing potential drop is carried out in resistance R3 series connection.Because voltage-stabiliser tube U1 is high-precision voltage regulation adjustor, the voltage on resistance R3 is generally 2.5V, by the resistance of adjusting resistance R8 and resistance R9, makes the Control of Voltage on output signal VCC the electromagnetic lock rated voltage of 0.8 ~ 1.0 times.
Fig. 4 is the schematic diagram of the magnet control circuit of electromagnetic lock according to the embodiment of the present invention, a part for the control circuit that this magnet control circuit provides as the embodiment of the present invention, as shown in Figure 4, the magnet control circuit of this electromagnetic lock comprises: electromagnetic lock, power supply MCU_DCS, electric capacity C301, electric capacity C302, resistance R303, resistance R304, triode Q32, triode Q34 and diode D32.
In the magnet control circuit of this electromagnetic lock, the first end of electromagnetic lock is connected with the colelctor electrode 3 of triode Q32 with the first end of electric capacity C302, and the second end of electromagnetic lock is connected with the first end of electric capacity C301 with the input of input signal Vcc; The first end of electric capacity C302 is connected with the colelctor electrode 3 of Q32, and second end of electric capacity C302 is connected with earth terminal; The cathode output end of diode D32 is connected with the first end of the input of Vcc with electric capacity C301, and the electrode input end of diode D32 is connected with the colelctor electrode 3 of Q32 with the colelctor electrode 2 of triode Q34; The base stage 1 of triode Q34 is connected with the emitter stage 1 of triode Q32, and the emitter stage 3 of Q34 is connected with earth terminal; The base stage 2 of triode Q32 is connected with the first end of resistance 303; Second end of resistance 303 is connected with power supply MCU_DCS with the first end of resistance 304; Second end of resistance 304 is connected with earth terminal; Second end of electric capacity C301 is connected with earth terminal.
Switching Power Supply is used precisely to control the control power circuit output voltage of electromagnetic lock, output signal the rated voltage of voltage at 1.1 ~ 1.5 times of electromagnetic locks of Vcc, obtain the voltage after boosting, be input to the input of the Vcc in the magnet control circuit of electromagnetic lock as shown in Figure 4.By the voltage after boosting, the voltage being applied to electromagnetic lock coil is changed, cause the enhanced intensity in the magnetic field of electromagnetic lock coil.The field intensity in the magnetic field after electromagnetic lock coil strengthens makes the first magnet and the second magnet adhesive of electromagnetic lock, and the first magnet and the second magnet are in attracting state.Time delay this attracting state a period of time, guarantee electromagnetic lock adhesive completely.
Switching Power Supply is used precisely to control the control power circuit output voltage of electromagnetic lock, the voltage of output signal Vcc is the rated voltage of 0.8 ~ 1.0 times, and then obtain the voltage after step-down, be input to the input of the Vcc in the magnet control circuit of electromagnetic lock as shown in Figure 4.Voltage after step-down makes the voltage being applied to electromagnetic lock coil change, and causes the field intensity of electromagnetic lock coil magnetic field to weaken.The field intensity in the magnetic field after being weakened by electromagnetic lock coil makes the first magnet of electromagnetic lock and the second magnet keep attracting state.
In another embodiment of the present invention, if receive power-off signal, the input of Vcc is made to obtain negative voltage, the coil of electromagnetic lock is made to produce opposing magnetic field, then the first magnet and the second magnet can demagnetize as early as possible, thus control electromagnetic lock power-off by negative voltage, disconnect to make the first magnet and the second magnet.
The electromagnetic lock control circuit that the embodiment of the present invention provides, the magnet control circuit of electromagnetic lock is exported by obtaining the voltage after boosting on the basis of rated voltage by the power control circuit of electromagnetic lock, the voltage being applied to electromagnetic lock coil is changed, makes the first magnet and the second magnet adhesive of electromagnetic lock; The basis of rated voltage makes the voltage being applied to electromagnetic lock coil change by the voltage after step-down, makes the first magnet of electromagnetic lock and the second magnet keep attracting state, reach the effect of saving electric energy.
Embodiments provide a kind of control method of electromagnetic lock, Fig. 5 is the schematic diagram of the control method of electromagnetic lock according to the embodiment of the present invention.As shown in Figure 5, the control method of this electromagnetic lock comprises the following steps:
Step S102, detects electromagnetic lock and receives control signal.
Detect electromagnetic lock and receive control signal, control electromagnetic lock by the change of control signal control voltage and power on or power-off, comprise the power on signal and power-off signal that detect electromagnetic lock.Electromagnetic lock comprises the first magnet and the second magnet.When electromagnetic lock is when being in power-up state, detect that the control signal of electromagnetic lock is power on signal, the magnetic field produced between the first magnet and the second magnet makes the first magnet and the second magnet be in attracting state.When detecting that the control signal of electromagnetic lock is power-off signal, make electromagnetic lock be in off-position, the first magnet and the second magnet disconnect.
Step S104, if detecting that electromagnetic lock receives control signal is power on signal, the basis of rated voltage is improved the upper piezoelectric voltage of electromagnetic lock, obtains the voltage after boosting.
Detection electromagnetic lock if detecting that electromagnetic lock receives control signal is power on signal, the basis of rated voltage is improved the upper piezoelectric voltage of electromagnetic lock after receiving control signal, obtains the voltage after boosting.The upper piezoelectric voltage that the basis of rated voltage is improved electromagnetic lock can improve the upper piezoelectric voltage of electromagnetic lock on the basis of rated voltage according to preset ratio, such as, by the resistance of regulating resistance, the rated voltage obtaining 1.1 ~ 1.5 times is energized, and then obtains the voltage after boosting.
Alternatively, after detection electromagnetic lock receives control signal, if detect that the time that electromagnetic lock powers on reaches Preset Time, the pinning that the basis of rated voltage reduces electromagnetic lock keeps voltage, obtains the voltage after step-down.The pinning that the basis of rated voltage reduces electromagnetic lock keeps voltage can be the pinning maintenance voltage reducing electromagnetic lock according to preset ratio, such as, by the resistance of regulating resistance, the rated voltage obtaining 0.8 ~ 1.0 times is energized, and then obtains the voltage after step-down.
Step S106, is powered on by the Control of Voltage electromagnetic lock after boosting, to make the first magnet and the second magnet adhesive.
After obtaining the voltage after boosting, powered on by the Control of Voltage electromagnetic lock after boosting.Voltage after boosting makes the voltage being applied to electromagnetic lock coil change, and causes the field intensity in the magnetic field of electromagnetic lock coil to strengthen on original basis.The field intensity in the magnetic field after electromagnetic lock coil strengthens can make the first magnet and the second magnet adhesive of electromagnetic lock, and then makes the first magnet and the second magnet attraction.
Alternatively, after obtaining the voltage after boosting, pinning hold mode is in by the Control of Voltage electromagnetic lock after step-down.Voltage after step-down makes the voltage being applied to electromagnetic lock coil change, and causes the field intensity of electromagnetic lock coil magnetic field to weaken on original basis, makes the first magnet of electromagnetic lock and the second magnet continue to keep attracting state by the field intensity in the magnetic field of weakening.
Alternatively, after detection electromagnetic lock receives control signal, if detecting that electromagnetic lock receives control signal is power-off signal, then obtain negative voltage, negative voltage makes the first magnet of electromagnetic lock and the magnetic direction of the second magnet and the first magnet contrary with the magnetic direction of the second magnet when attracting state, first magnet and the second magnet are demagnetized as early as possible, thus controls electromagnetic lock power-off by negative voltage, disconnect to make the first magnet and the second magnet.Control electromagnetic lock power-off by negative voltage, disconnect to make the first magnet and the second magnet.
In this embodiment, electromagnetic lock comprises the first magnet and the second magnet, electromagnetic lock is when being in power-up state, first magnet and the second magnet are in attracting state, electromagnetic lock is when being in off-position, first magnet and the second magnet are in off-state, this embodiment adopts detection electromagnetic lock to receive control signal, if detecting that electromagnetic lock receives control signal is power on signal, the basis of rated voltage is improved the upper piezoelectric voltage of electromagnetic lock, obtain the voltage after boosting, power on finally by the Control of Voltage electromagnetic lock after boosting, to make the first magnet and the second magnet adhesive, improve the reliability that electromagnetic lock controls.
It should be noted that, can perform in the computer system of such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing, and, although show logical order in flow charts, but in some cases, can be different from the step shown or described by order execution herein.
The embodiment of the present invention additionally provides a kind of control device of electromagnetic lock, it should be noted that, the control device of the electromagnetic lock of the embodiment of the present invention may be used for the control method of the electromagnetic lock performing the embodiment of the present invention.
Electromagnetic lock in this device comprises the first magnet and the second magnet, and electromagnetic lock is when being in power-up state, and the first magnet and the second magnet are in attracting state, and electromagnetic lock is when being in off-position, and the first magnet and the second magnet are in off-state.
Fig. 6 is the schematic diagram of the control device of electromagnetic lock according to a first embodiment of the present invention.As shown in Figure 3, the control device of this electromagnetic lock comprises: detecting unit 30, boosting unit 40 and control unit 50.
Detecting unit 30, receives control signal for detecting electromagnetic lock.Detecting unit 30 detects electromagnetic lock and receives control signal, controls electromagnetic lock power on or power-off by the change of control signal control voltage, and detecting unit 30 can detect power on signal and the power-off signal of electromagnetic lock.Electromagnetic lock comprises the first magnet and the second magnet.When electromagnetic lock is when being in power-up state, detecting unit 30 detects that the control signal of electromagnetic lock is power on signal, and the magnetic field produced between the first magnet and the second magnet makes the first magnet and the second magnet be in attracting state.When electromagnetic lock is when being in off-position, detecting unit 30 detects that the control signal of electromagnetic lock is power-off signal, and between the first magnet and the second magnet, voltage is zero or is negative pressure, makes the first magnet and the second magnet be in off-state.
Boosting unit 40, for when electromagnetic lock being detected to receive control signal being power on signal, the basis of rated voltage is improved the upper piezoelectric voltage of electromagnetic lock, obtains the voltage after boosting.Boosting unit 40 for improving the upper piezoelectric voltage of electromagnetic lock on the basis of rated voltage according to preset ratio.Specifically, detecting unit 30 detects after electromagnetic lock receives control signal, if it is power on signal that detecting unit 30 detects that electromagnetic lock receives control signal, boosting unit 40 improves the upper piezoelectric voltage of electromagnetic lock on the basis of rated voltage, obtains the voltage after boosting.The upper piezoelectric voltage that boosting unit 40 improves electromagnetic lock on the basis of rated voltage can improve the upper piezoelectric voltage of electromagnetic lock according to preset ratio on the basis of rated voltage, such as, by the resistance of regulating resistance, the rated voltage obtaining 1.1 ~ 1.5 times is energized, and then obtains the voltage after boosting.
Control unit 50, for powering on by the Control of Voltage electromagnetic lock after boosting, to make the first magnet and the second magnet adhesive.After obtained the voltage after boosting by boosting unit 40, control unit 50 is powered on by the Control of Voltage electromagnetic lock after boosting.Voltage after boosting makes the voltage being applied to electromagnetic lock coil change, and causes the field intensity in the magnetic field of electromagnetic lock coil to strengthen on original basis.The field intensity in the magnetic field after electromagnetic lock coil strengthens can make the first magnet and the second magnet adhesive of electromagnetic lock, and then control unit 50 controls the first magnet and the second magnet attraction.
Fig. 7 is the schematic diagram of the control device of electromagnetic lock according to a second embodiment of the present invention, and in one embodiment of the invention, this device comprises pressure unit 60.As shown in Figure 7, the device of this embodiment comprises: detecting unit 30, and boosting unit 40 and control unit 50, this device also comprises pressure unit 60.
Pressure unit 60, after receiving control signal at detection electromagnetic lock, when the time that electromagnetic lock powers on reaches Preset Time, the pinning that the basis of rated voltage reduces electromagnetic lock keeps voltage, obtains the voltage after step-down.Pressure unit 60 for reducing the pinning maintenance voltage of electromagnetic lock on the basis of rated voltage according to preset ratio.The pinning that pressure unit 60 reduces electromagnetic lock on the basis of rated voltage keeps voltage on the basis of rated voltage, can reduce the pinning maintenance voltage of electromagnetic lock according to preset ratio, such as, by the resistance of regulating resistance, the rated voltage obtaining 0.8 ~ 1.0 times is energized, and then obtains the voltage after step-down.Control unit 50 is also for being in pinning hold mode by the Control of Voltage electromagnetic lock after step-down.
Fig. 8 is the schematic diagram of the control device of electromagnetic lock according to a third embodiment of the present invention, and in one embodiment of the invention, this device comprises negative pressure unit 70.As shown in Figure 8, the device of this embodiment comprises: detecting unit 30, and boosting unit 40 and control unit 50, this device also comprises negative pressure unit 70.
Negative pressure unit 70, after electromagnetic lock receives control signal in detection, when electromagnetic lock being detected to receive control signal be power-off signal, obtains negative voltage.Specifically, detect after electromagnetic lock receives control signal at detecting unit 30, if it is power-off signal that detecting unit 30 detects that electromagnetic lock receives control signal, then negative pressure unit 70 obtains negative voltage, negative voltage makes the first magnet of electromagnetic lock and the magnetic direction of the second magnet and the first magnet contrary with the magnetic direction of the second magnet when attracting state, and the first magnet and the second magnet are demagnetized as early as possible.Control unit 50, for controlling electromagnetic lock power-off by negative voltage, disconnects to make the first magnet and the second magnet.
In embodiments of the present invention, electromagnetic lock comprises the first magnet and the second magnet, electromagnetic lock is when being in power-up state, first magnet and the second magnet are in attracting state, electromagnetic lock is when being in off-position, first magnet and the second magnet are in off-state, and this electromagnetic lock control device detects electromagnetic lock by detecting unit 30 and receives control signal; When electromagnetic lock being detected by boosting unit 40 to receive control signal be power on signal, the basis of rated voltage is improved the upper piezoelectric voltage of electromagnetic lock, obtain the voltage after boosting, control unit 50 is powered on by the Control of Voltage electromagnetic lock after boosting, to make the first magnet and the second magnet adhesive, improve the reliability that electromagnetic lock controls.
The embodiment of the present invention additionally provides a kind of disinfection cabinet, it should be noted that, this disinfection cabinet comprises electromagnetic lock, and the control circuit of the electromagnetic lock of the embodiment of the present invention.
By the embodiment of the present invention, improve the reliability that electromagnetic lock controls.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. the control method of an electromagnetic lock, it is characterized in that, described electromagnetic lock comprises the first magnet and the second magnet, described electromagnetic lock is when being in power-up state, and described first magnet and described second magnet are in attracting state, and described electromagnetic lock is when being in pinning hold mode, described first magnet and described second magnet keep attracting state, described electromagnetic lock is when being in off-position, and described first magnet and described second magnet are in off-state, and described method comprises:
Detect described electromagnetic lock and receive control signal;
If detecting that described electromagnetic lock receives control signal is power on signal, the basis of rated voltage is improved the upper piezoelectric voltage of described electromagnetic lock, obtain the voltage after boosting; And
Powered on by electromagnetic lock described in the Control of Voltage after described boosting, to make described first magnet and described second magnet adhesive.
2. method according to claim 1, is characterized in that, after being powered on by electromagnetic lock described in the Control of Voltage after described boosting, described method also comprises:
Judge whether the time that described electromagnetic lock powers on reaches Preset Time;
If the time that described electromagnetic lock powers on reaches described Preset Time, the pinning that the basis of rated voltage reduces described electromagnetic lock keeps voltage, obtains the voltage after step-down; And
Pinning hold mode is in by electromagnetic lock described in the Control of Voltage after described step-down.
3. method according to claim 2, is characterized in that, the pinning that the basis of rated voltage reduces described electromagnetic lock keeps voltage to comprise: the pinning maintenance voltage reducing described electromagnetic lock on the basis of described rated voltage according to preset ratio.
4. method according to claim 1, is characterized in that, the upper piezoelectric voltage that the basis of rated voltage is improved described electromagnetic lock comprises: the upper piezoelectric voltage improving described electromagnetic lock on the basis of described rated voltage according to preset ratio.
5. method according to claim 1, is characterized in that, after the described electromagnetic lock of detection receives control signal, described method also comprises:
If detecting that described electromagnetic lock receives control signal is power-off signal, obtain negative voltage; And
Control described electromagnetic lock power-off by described negative voltage, disconnect to make described first magnet and described second magnet.
6. the control device of an electromagnetic lock, it is characterized in that, described electromagnetic lock comprises the first magnet and the second magnet, described electromagnetic lock is when being in power-up state, and described first magnet and described second magnet are in attracting state, and described electromagnetic lock is when being in pinning hold mode, described first magnet and described second magnet keep attracting state, described electromagnetic lock is when being in off-position, and described first magnet and described second magnet are in off-state, and described device comprises:
Detecting unit, receives control signal for detecting described electromagnetic lock;
Boosting unit, for when described electromagnetic lock being detected to receive control signal being power on signal, the basis of rated voltage is improved the upper piezoelectric voltage of described electromagnetic lock, obtains the voltage after boosting; And
Control unit, for being powered on by electromagnetic lock described in the Control of Voltage after described boosting, to make described first magnet and described second magnet adhesive.
7. device according to claim 6, is characterized in that, described device also comprises:
Pressure unit, after the time powered on for described electromagnetic lock reaches Preset Time, the pinning that the basis of rated voltage reduces described electromagnetic lock keeps voltage, obtains the voltage after step-down,
Wherein, described control unit is also for being in pinning hold mode by electromagnetic lock described in the Control of Voltage after described step-down.
8. device according to claim 7, is characterized in that, the pinning that described pressure unit reduces described electromagnetic lock according to preset ratio on the basis in described rated voltage keeps voltage.
9. device according to claim 6, is characterized in that, described boosting unit improves the upper piezoelectric voltage of described electromagnetic lock on the basis in described rated voltage according to preset ratio.
10. device according to claim 6, is characterized in that, described device also comprises:
Negative pressure unit, after described electromagnetic lock receives control signal in detection, when described electromagnetic lock being detected to receive control signal be power-off signal, obtains negative voltage,
Wherein, described control unit is used for controlling described electromagnetic lock power-off by described negative voltage, disconnects to make described first magnet and described second magnet.
The control circuit of 11. 1 kinds of electromagnetic locks, it is characterized in that, described electromagnetic lock comprises the first magnet and the second magnet, described electromagnetic lock is when being in power-up state, and described first magnet and described second magnet are in attracting state, and described electromagnetic lock is when being in pinning hold mode, described first magnet and described second magnet keep attracting state, described electromagnetic lock is when being in off-position, and described first magnet and described second magnet are in off-state, and described control circuit comprises:
Voltage source, for providing rated voltage; And
Booster circuit, for when described electromagnetic lock being detected to receive control signal being power on signal, the basis of rated voltage is improved the upper piezoelectric voltage of described electromagnetic lock, obtain the voltage after boosting, and powered on by electromagnetic lock described in the Control of Voltage after described boosting, to make described first magnet and described second magnet adhesive.
12. control circuits according to claim 11, is characterized in that, described control circuit also comprises:
Reduction voltage circuit, time for powering at described electromagnetic lock is when reaching Preset Time, the pinning that the basis of rated voltage reduces described electromagnetic lock keeps voltage, obtains the voltage after step-down, and is in pinning hold mode by electromagnetic lock described in the Control of Voltage after described step-down.
13. 1 kinds of disinfection cabinets, is characterized in that, comprising:
Electromagnetic lock; And
The control circuit of the electromagnetic lock described in claim 11 or 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510674176.XA CN105257106A (en) | 2015-07-29 | 2015-10-15 | Control circuit, control method and device of electromagnetic lock and disinfection cabinet |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015104609808 | 2015-07-29 | ||
| CN201510460980 | 2015-07-29 | ||
| CN201510674176.XA CN105257106A (en) | 2015-07-29 | 2015-10-15 | Control circuit, control method and device of electromagnetic lock and disinfection cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105257106A true CN105257106A (en) | 2016-01-20 |
Family
ID=55097005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510674176.XA Pending CN105257106A (en) | 2015-07-29 | 2015-10-15 | Control circuit, control method and device of electromagnetic lock and disinfection cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105257106A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988619A (en) * | 2017-06-06 | 2017-07-28 | 北京天川同展科技有限公司 | A kind of latch bolt position detection method and device of electric control lock |
| CN107684632A (en) * | 2016-08-04 | 2018-02-13 | 博西华电器（江苏）有限公司 | Disinfection cabinet |
| CN112727260A (en) * | 2020-12-28 | 2021-04-30 | 北京城建智控科技有限公司 | Control method and device of electromagnetic lock, medium, equipment and electromagnetic lock |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2310842Y (en) * | 1996-11-22 | 1999-03-17 | 张宗志 | Improved safety magnetic door lock |
| KR200431447Y1 (en) * | 2006-08-31 | 2006-11-23 | 주식회사 동원테크 | Unlocking structure for magnetic type door locking device |
| CN2857947Y (en) * | 2005-12-08 | 2007-01-17 | 浙江帅康电气股份有限公司 | Improved disinfection cabinet |
| CN101302904A (en) * | 2008-07-10 | 2008-11-12 | 史幼迪 | Method and device for saving energy of electromagnetic door lock |
| CN201226285Y (en) * | 2008-06-05 | 2009-04-22 | 中国长江航运集团电机厂 | Friction dry-type electromagnetic disc type brake rectifier |
| FR2968339A1 (en) * | 2010-12-06 | 2012-06-08 | Maison Frerot | Unlocking device for disintegrating lid from box utilized for storing leather accessories, has magnets, where direction of disintegration movement of magnets of lid and box is in plane perpendicular to direction of magnetic attraction force |
| CN204006926U (en) * | 2014-06-30 | 2014-12-10 | 青岛海尔股份有限公司 | Refrigerator |
-
2015
- 2015-10-15 CN CN201510674176.XA patent/CN105257106A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2310842Y (en) * | 1996-11-22 | 1999-03-17 | 张宗志 | Improved safety magnetic door lock |
| CN2857947Y (en) * | 2005-12-08 | 2007-01-17 | 浙江帅康电气股份有限公司 | Improved disinfection cabinet |
| KR200431447Y1 (en) * | 2006-08-31 | 2006-11-23 | 주식회사 동원테크 | Unlocking structure for magnetic type door locking device |
| CN201226285Y (en) * | 2008-06-05 | 2009-04-22 | 中国长江航运集团电机厂 | Friction dry-type electromagnetic disc type brake rectifier |
| CN101302904A (en) * | 2008-07-10 | 2008-11-12 | 史幼迪 | Method and device for saving energy of electromagnetic door lock |
| FR2968339A1 (en) * | 2010-12-06 | 2012-06-08 | Maison Frerot | Unlocking device for disintegrating lid from box utilized for storing leather accessories, has magnets, where direction of disintegration movement of magnets of lid and box is in plane perpendicular to direction of magnetic attraction force |
| CN204006926U (en) * | 2014-06-30 | 2014-12-10 | 青岛海尔股份有限公司 | Refrigerator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107684632A (en) * | 2016-08-04 | 2018-02-13 | 博西华电器（江苏）有限公司 | Disinfection cabinet |
| CN106988619A (en) * | 2017-06-06 | 2017-07-28 | 北京天川同展科技有限公司 | A kind of latch bolt position detection method and device of electric control lock |
| CN106988619B (en) * | 2017-06-06 | 2018-10-26 | 北京天川同展科技有限公司 | A kind of latch bolt position detection method and device of electric control lock |
| CN112727260A (en) * | 2020-12-28 | 2021-04-30 | 北京城建智控科技有限公司 | Control method and device of electromagnetic lock, medium, equipment and electromagnetic lock |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2636053B1 (en) | Method and apparatus for improved relay control | |
| CN105135594B (en) | A kind of air-conditioner outdoor unit standby control system and air-conditioning | |
| EP3176803A1 (en) | Controller and control method for alternating current contactor | |
| CN109156058A (en) | Half bridge resonant converter, the circuit using them and corresponding control method | |
| CN105257106A (en) | Control circuit, control method and device of electromagnetic lock and disinfection cabinet | |
| AU2014207246A1 (en) | Switching circuit | |
| CN105450054B (en) | Circuit of power factor correction carries auxiliary power circuit and its control method and device | |
| CN105843318B (en) | Low differential voltage linear voltage stabilizer circuit | |
| CN100505511C (en) | Device for driving an electromagnet, particularly for operating pumps | |
| CN106252158A (en) | Electromagnetic relay circuit | |
| CN109023737A (en) | A kind of the presser foot lifter control system and method for flush joint thickness material machine | |
| CN204836118U (en) | Energy -saving control circuit and row of inserting thereof | |
| CN102576626A (en) | Heat-generation inhibiting circuit for exciting coil in relay | |
| ATE352803T1 (en) | POWER SUPPLY WITH LOW-LOSS RUNNING CURRENT LIMITATION | |
| JP2018093044A (en) | Solenoid valve driving device | |
| CN106685246A (en) | Turn-off extraction mutual inductance coupling type power supply system and method | |
| AU2012368327A1 (en) | Offline power supply | |
| EP4080536A1 (en) | Contactor, and device and method for controlling same | |
| CN208820680U (en) | One kind powering on anti-impact device and high voltage direct current generator | |
| CN107768196A (en) | A kind of control system for reducing relay power consumption | |
| CN108183049A (en) | Relay drive circuit and air conditioner | |
| KR101885308B1 (en) | DC Adapter for Magnetic Contactor Drive | |
| CN107622915B (en) | Using the A.C. contactor of the economize on electricity noise elimination of solid core | |
| CN207587633U (en) | D.C. contactor and its driving circuit | |
| CN205811980U (en) | A kind of inductive load voltage PWM degausser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160120 |