CN207165492U - Contactor drive device and the contactor for including it - Google Patents
Contactor drive device and the contactor for including it Download PDFInfo
- Publication number
- CN207165492U CN207165492U CN201721059400.5U CN201721059400U CN207165492U CN 207165492 U CN207165492 U CN 207165492U CN 201721059400 U CN201721059400 U CN 201721059400U CN 207165492 U CN207165492 U CN 207165492U
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- CN
- China
- Prior art keywords
- contactor
- power supply
- halfwave rectifier
- supply unit
- rectifier power
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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.)
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Abstract
The utility model discloses a kind of contactor drive device and its contactor is included, including：First halfwave rectifier power supply unit, the second halfwave rectifier power supply unit and drive control device；The input connection contact appliance mains switch of drive control device, output end is connected with the drive end of the first halfwave rectifier power supply unit and the second halfwave rectifier power supply unit, and the output end of the first halfwave rectifier power supply unit and the second halfwave rectifier power supply unit is contactor power supply drive end；After appliance mains switch closure is contacted, the first halfwave rectifier power supply unit rectification is driven, the output end of the first halfwave rectifier power supply unit is provided direct current supply to contactor to be driven, makes contactor adhesive.Contactor drive device of the present utility model, kept for the stage after contactor adhesive, worked using the first halfwave rectifier power supply unit or the second halfwave rectifier power supply unit althyrex, and commutating voltage is effectively reduced by pulse switch, avoid contact with device and produce remanent magnetism phenomenon, influence the release characteristics of contactor.
Description
Technical field
Circuit arrangement or the systems technology field of power supply or distribution are the utility model is related to, more particularly to a kind of contactor drives
Dynamic device and the contactor comprising the drive device.
Background technology
Existing contactor in general control voltage allowed band is 187V-242V.If brownout contactor without
The normal adhesive of method burns out control coil；Control coil can be directly burnt out if voltage is too high for a long time.And wind-powered electricity generation, photovoltaic with
And the use occasion such as outlying rural area, it is desirable to which the control voltage of contactor has larger working range, or even requires to reach 100V-
250V.To reach Width funtion control range, prior art is as follows：Power rectifier will be controlled, it is in contactor adhesive, rectification is steady
The DC voltage for being pressed onto certain numerical value is applied on the coil of contactor.DC voltage can produce very big on alternating magnetic system
The suction-combining force, so even if supply voltage is low to arrive 100V, also it is enough to complete adhesive action；Relatively low electricity is only needed after contactor adhesive
Press hold mode, by pwm pulse width modulation module, supply voltage be modulated, voltage compared with it is high when the ratio that cuts out it is more,
The ratio retained when voltage is low is more, reaches energy-conservation and the purpose of Width funtion work.But pwm pulse width modulation module is used,
Its stability and anti-electromagnetic interference capability are poor, and easily remanent magnetism phenomenon occur, influence contactor release characteristics.
Utility model content
To solve in the prior art, contactor is existing to use pwm pulse width modulation module, its stability and anti-electromagnetism
Interference performance is poor, and easily remanent magnetism phenomenon occurs, influences the technical problem of contactor release characteristics, technology of the present utility model
Scheme is as follows：
A kind of contactor the utility model discloses contactor drive device and comprising the drive device.
Wherein contactor drive device, including：First halfwave rectifier power supply unit, the second halfwave rectifier power supply unit and drive
Movement controller；The input connection contact appliance mains switch of the drive control device, output end supply with first halfwave rectifier
The drive end of electric unit and the second halfwave rectifier power supply unit connects, and the first halfwave rectifier power supply unit and the second half-wave are whole
The output end for flowing power supply unit is contactor power supply drive end；After the contact appliance mains switch closure, driving described first
Halfwave rectifier power supply unit rectification, the output end of the first halfwave rectifier power supply unit is set to provide direct current to contactor to be driven
Power supply, makes contactor adhesive；After the contact appliance mains switch disconnects, the drive control device drives current halfwave rectifier to supply
Electric unit switches to another half-wave commutation supply voltage unit.
In a preferred embodiment, the drive control device is after start-up study is set, driving described the first half
Ripple commutation supply voltage unit and the second halfwave rectifier power supply unit carry out althyrex work, make the first halfwave rectifier power supply single
Member and the output end of the second halfwave rectifier power supply unit are alternately powered to contactor to be driven, keep contactor attracting state.
In a preferred embodiment, the first halfwave rectifier power supply unit and the second halfwave rectifier unit are
Triode half-wave rectifying circuit.
Wherein contactor includes above-mentioned contactor drive device, and the drive end of contactor drive device is connected with contactor.
Contactor drive device in the utility model, compared with prior art, its advantage is：
Contactor drive device in the utility model, in the contactor adhesive stage, first is driven using drive control device
Halfwave rectifier power supply unit rectification, the output end of the first halfwave rectifier power supply unit is provided direct current to contactor to be driven and supply
Electricity, make contactor adhesive；Kept for the stage in adhesive, the first halfwave rectifier power supply unit and the second half are driven using drive control device
Ripple commutation supply voltage unit carries out althyrex work, makes the first halfwave rectifier power supply unit and the second halfwave rectifier power supply unit
Output end alternately to contactor to be driven power, keep contactor attracting state, effectively reduce commutating voltage, its stability and
Anti-electromagnetic interference capability is strong, energy-conservation；Device is avoided contact with simultaneously and produces remanent magnetism phenomenon, influences the release characteristics of contactor.
Brief description of the drawings
Fig. 1 is the circuit diagram of contactor drive device in the utility model；
Fig. 2 is to use to control V diagram during pwm pulse width modulation module in the prior art；
Fig. 3 is the control voltage schematic diagram of contactor drive device in the utility model.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is clearly and completely described.
Based on the embodiment in the utility model, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belong to the scope of the utility model protection.
As shown in figure 1, contactor drive device of the present utility model, including：First halfwave rectifier power supply unit A, second
Halfwave rectifier power supply unit B and drive control device C；Drive control device C input connection contact appliance mains switch, output end with
The first halfwave rectifier power supply unit A halfwave rectifier power supply unit B of drive end 3 and second drive end 4 connects, and the first half-wave is whole
The output end 5,6 for flowing power supply unit A and the second halfwave rectifier power supply unit B is contactor power supply drive end；When contactor power supply
After switch closure, drive control device C drives the first halfwave rectifier power supply unit A rectifications, makes the first halfwave rectifier power supply unit A's
Output end provides direct current supply to contactor to be driven, makes contactor adhesive；After appliance mains switch disconnection is contacted, drive control
Device C drives current halfwave rectifier power supply unit to switch to another half-wave commutation supply voltage unit.
Drive control device C drives the first halfwave rectifier power supply unit A and the second halfwave rectifier to supply after start-up study is set
Electric unit B carries out althyrex work, makes the first halfwave rectifier power supply unit A and the second halfwave rectifier power supply unit B output
End alternately powers to contactor KM to be driven, keeps contactor KM attracting states to be driven.Powered using the first halfwave rectifier single
First A distinguishes rectification and replaced to contactor KM to be driven with the second halfwave rectifier power supply unit B to power, and can effectively reduce rectification
Voltage；Avoid contactor KM to be driven from producing remanent magnetism, influence the release characteristics of contactor.First halfwave rectifier power supply unit A or
Second halfwave rectifier unit B is triode half-wave rectifying circuit.Using the control voltage of such scheme as shown in figure 3, and existing
The control voltage using pwm pulse width modulation module as shown in Fig. 2 comparatively speaking, scheme of the present utility model its into
This reduction by 15%, while improve the stability and anti-electromagnetic interference capability of contactor.
The course of work of the utility model contactor drive device is divided into attracting process and keeps the step of process two：
The first step：Attracting process
As shown in figure 1, in 1,2 termination 100V~250V alternating current, current potential is set low by 3 using drive control device C, 4 put
High potential, now BG1 and BG3 conductings, BG5 and BG7 cut-offs, contactor KM warps+5 and -6 to be driven obtain 45~110v direct current
Voltage, excitation, it is ensured that contactor adhesive to be driven.
Second step：Holding process
To avoid when the supply voltage of 1,2 termination is higher, contactor to be driven is applied higher DC voltage for a long time,
Power consumption is larger or is burnt, so to make it into hold mode, the utility model sets attracting process as 100ms.After 100ms
High potential is put by 3, the output of 4 height potential pulses, now BG1 and BG3 cut-offs, BG5 and BG7 interval on or off are to be driven
Contactor warp+6 and -5 obtains pulse voltage, keeps attracting state；The output of 3 height potential pulses is changed to after 500ms, 4 put high electricity
Position, makes contactor KM to be driven obtain reverse DC pulse voltage.Using this kind of holding circuit, realized and lowered consumption by intermittency signal
Purpose；Contactor Magnetic System to be driven is avoided to produce remanent magnetism simultaneously.Control voltage during its work is as shown in Figure 3.
The invention also discloses a kind of contactor, includes above-mentioned contactor drive device.Contactor driving dress
The drive end put is connected with contactor.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with the power
The protection domain that profit requires is defined.
Claims (4)
1. contactor drive device, it is characterised in that including：First halfwave rectifier power supply unit, the power supply of the second halfwave rectifier are single
Member and drive control device；The input connection contact appliance mains switch of the drive control device, output end and first half-wave
The drive end of commutation supply voltage unit and the second halfwave rectifier power supply unit connects, the first halfwave rectifier power supply unit and second
The output end of halfwave rectifier power supply unit is contactor power supply drive end；After the contact appliance mains switch closure, institute is driven
The first halfwave rectifier power supply unit rectification is stated, the output end of the first halfwave rectifier power supply unit is carried to contactor to be driven
For direct current supply, make contactor adhesive；After the contact appliance mains switch disconnects, the drive control device drives current half-wave
Commutation supply voltage unit switches to another half-wave commutation supply voltage unit.
2. contactor drive device according to claim 1, it is characterised in that the drive control device is prolonged in setting startup
Shi Hou, drive the first halfwave rectifier power supply unit and the second halfwave rectifier power supply unit to carry out althyrex work, make institute
The output end for stating the first halfwave rectifier power supply unit and the second halfwave rectifier power supply unit is alternately powered to contactor to be driven, is protected
Hold contactor attracting state.
3. contactor drive device according to claim 1, it is characterised in that the first halfwave rectifier power supply unit and
Second halfwave rectifier unit is diode half-wave rectifying circuit.
4. contactor, it is characterised in that including the contactor drive device and contactor described in claim 1 or 2, the contact
Device is connected with the drive end of the contactor drive device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721059400.5U CN207165492U (en) | 2017-08-23 | 2017-08-23 | Contactor drive device and the contactor for including it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721059400.5U CN207165492U (en) | 2017-08-23 | 2017-08-23 | Contactor drive device and the contactor for including it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207165492U true CN207165492U (en) | 2018-03-30 |
Family
ID=61718255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721059400.5U Expired - Fee Related CN207165492U (en) | 2017-08-23 | 2017-08-23 | Contactor drive device and the contactor for including it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207165492U (en) |
-
2017
- 2017-08-23 CN CN201721059400.5U patent/CN207165492U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180330 Termination date: 20180823 |