CN202633175U - Voltage sagging prevention wide voltage alternating current contactor controller based on low voltage capacitance - Google Patents
Voltage sagging prevention wide voltage alternating current contactor controller based on low voltage capacitance Download PDFInfo
- Publication number
- CN202633175U CN202633175U CN 201220296532 CN201220296532U CN202633175U CN 202633175 U CN202633175 U CN 202633175U CN 201220296532 CN201220296532 CN 201220296532 CN 201220296532 U CN201220296532 U CN 201220296532U CN 202633175 U CN202633175 U CN 202633175U
- Authority
- CN
- China
- Prior art keywords
- voltage
- power supply
- low
- contactor
- sampling circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Rectifiers (AREA)
Abstract
The utility model relates to a voltage sagging prevention wide voltage alternating current contactor controller based on a low voltage capacitance. The voltage sagging prevention wide voltage alternating current contactor controller comprises a rectifier bridge, a filter capacitor, a heavy current excitation switch tube, a low voltage keeping switch tube, a voltage sampling circuit, a switch power, a low voltage keeping power, a singlechip control system, a low voltage capacitor and a diode. In normal starting, a singlechip system and the follow currents of the diode and the low voltage keeping switch are in pulse width modulation (PWM) control through the heavy current excitation switch tube. When the voltage of a power fall off, the low voltage keeping switch supplies energy which is needed to keep coils of the a contactor to operate when the voltage falls off through the discharging of the low voltage capacitance, and the alternating current contactor controller is enabled to be accurate and convenient to achieve continuous operation of the contactor when the voltage is fell, so that wide voltage work is achieved. The voltage sagging prevention wide voltage alternating current contactor controller based on the low voltage capacitance has the advantages of being convenient to control, low in cost, energy-saving, strong in applicability and the like.
Description
Technical field
The utility model relates to a kind of reactance voltage based on low-voltage electric capacity and falls wide voltage A.C. contactor controller, belongs to the contactor field.
Background technology
The contactor of antagonism electric voltage dropping is existing in the document at present discusses, and still, contactor control realizes wide voltage control; Can not realize that low-voltage keeps and low-voltage Xc electric voltage dropping; Keep and low-voltage Xc electric voltage dropping if carry out low-voltage, just can't realize wide voltage control, patent of invention " contactor controller that the AC/DC universal reactance voltage the falls " (patent No.: CN 201584367.U) of declaring such as Liu Xiangjun etc.; When this patent is normal startup and maintenance operation; Single-chip microcomputer carries out PWM control through the excitatory switching tube of heavy current and afterflow and section breaker pipe to contactor coil and realizes wide voltage control, and after voltage sampling circuit detected supply voltage and falls, excitatory switching tube of Single-chip Controlling heavy current and afterflow and section breaker pipe carried out PWM and control; Filter capacitor is that coil provides energy; The electric pressure of this filter capacitor is higher, and cost is higher like this, but can't realize that but low-voltage keeps and low-voltage Xc electric voltage dropping; We are in carrying out intelligent AC contactor research for a long time in a large number, and discovery can have wide voltage control simultaneously, low-voltage keeps and the importance of low-voltage Xc electric voltage dropping function.
Summary of the invention
The purpose of the utility model is to provide a kind of reactance voltage based on low-voltage electric capacity to fall wide voltage A.C. contactor controller; SCM system carries out PWM control through the excitatory switching tube of heavy current and diode, the afterflow of low pressure maintained switch during normal the startup, and when normally keeping operation, the Switching Power Supply mesolow keeps the power supply power supply; At single-chip computer control system after voltage sampling circuit detects supply voltage and falls; Single-chip computer control system control low pressure maintained switch guarantees and holds conducting, and low pressure maintained switch pipe is provided at through the low-voltage capacitor discharge and keeps contactor coil during the electric voltage dropping and keep the required energy of operation, guarantees that contactor does not discharge during electric voltage dropping; Can guarantee that A.C. contactor realizes contactor continuous service during the electric voltage dropping accurately, easily; Realize wide voltage power supply, have control conveniently, cost is low; Energy-conservation, characteristics such as application is strong.
The purpose of the utility model is to realize like this; It comprises that rectifier bridge, filter capacitor, the excitatory switching tube of heavy current, low pressure maintained switch pipe, voltage sampling circuit, Switching Power Supply, low pressure keep power supply, SCM system, low-voltage electric capacity, diode, contactor coil and external control switch; It is characterized in that: an end of a termination external control switch of power supply and the electric voltage dropping sampled signal input in the voltage sampling circuit; Normal break-make control sampled signal input in AC side one end of another termination rectifier bridge of external control switch and the voltage sampling circuit; The AC side other end of another termination rectifier bridge of power supply and the signal common port in the voltage sampling circuit; The anode of rectifier bridge connects input and the positive pole of filter capacitor of collector electrode, the Switching Power Supply of the excitatory switching tube of heavy current respectively; The emitter of the excitatory switching tube of heavy current or source electrode join with an end of contactor coil, the emitter or the source electrode of low pressure maintained switch pipe respectively; The negative terminal of rectifier bridge keeps negative terminal, the negative pole of low-voltage electric capacity, the diode cathode of power supply to join with another input of Switching Power Supply, the negative pole of filter capacitor, the other end of contactor coil, the low pressure in the Switching Power Supply respectively; The collector electrode of the anode of low pressure maintenance power supply and the positive pole of low-voltage electric capacity, diode cathode, low pressure maintained switch pipe joins; The output of voltage sampling circuit is received the first input end of SCM system; The output of the electric voltage dropping sampled signal of voltage sampling circuit is received second input of SCM system; Two outputs of Switching Power Supply join with the power end of SCM system power end, voltage sampling circuit respectively, and two delivery outlets of SCM system join with the control utmost point of the excitatory switching tube of heavy current, the control utmost point of low pressure maintained switch pipe respectively, and it is a power supply in the Switching Power Supply that low pressure keeps power supply.
In the utility model one embodiment, the excitatory switching tube of described heavy current is IGBT igbt or transistor or MOSFET FET.
In the utility model one embodiment, described low pressure maintained switch pipe is IGBT igbt or transistor or MOSFET FET.
In the utility model one embodiment, described low-voltage electric capacity is super capacitor or low-voltage electrochemical capacitor.
In the utility model one embodiment; Described external control switch changes hand push button into; One end of power supply is taken over an end of moving button normally open contact, an end of Self-lock contactor normally open contact respectively; One end of the other end of the other end of hand push button normally open contact and Self-lock contactor normally open contact, the electric voltage dropping sampled signal input in the voltage sampling circuit and hand push button normally closed interlock joins; The normal break-make control sampled signal input in another termination voltage sampling circuit of manual button normally closed interlock and AC side one end of rectifier bridge, the AC side other end of another termination rectifier bridge of power supply and the signal common port in the voltage sampling circuit.
The utility model compared with prior art, SCM system carries out PWM control through the excitatory switching tube of heavy current and diode, the afterflow of low pressure maintained switch when normally starting, and is normal when keeping operation; The Switching Power Supply mesolow keeps the power supply power supply, and after voltage sampling circuit detected supply voltage and falls, single-chip computer control system was controlled the low pressure maintained switch and guaranteed and hold conducting at single-chip computer control system; Low pressure maintained switch pipe is kept the required energy of contactor coil maintenance operation during being provided at electric voltage dropping through the low-voltage capacitor discharge; Guarantee that contactor does not discharge during electric voltage dropping, can guarantee that A.C. contactor realizes contactor continuous service during the electric voltage dropping accurately, easily, realize wide voltage power supply; It is convenient to have control; Characteristics such as cost is low, and is energy-conservation, and application is strong.
When external control switch is closed, SCM system judges it is DC power supply or AC power earlier after voltage sampling circuit detects normal break-make control sampled signal and shows that contactor applies excitation power supply voltage; According to the size of supply voltage, SCM system is controlled the conducting of low pressure maintained switch pipe with different frequencies and the excitatory switching tube work of duty ratio control heavy current then; In the excitatory switching tube of the heavy current turn-off time, the contactor coil electric current is realized the strong excitatory start-up course of optimization under the wide power voltage through low pressure maintained switch pipe and diode continuousing flow; After Contactor Starting is accomplished,, still be in conducting state by SCM system control low pressure maintained switch pipe because required maintenance energy is very little; The Switching Power Supply mesolow keeps power supply to make contactor coil be in the small-power state through low pressure maintained switch pipe, realizes energy-saving run, when external control switch is opened; It is that low level shows that contactor should normally divide and has no progeny that single-chip microcomputer detects normal break-make control sampled signal through voltage sampling circuit, through low pressure maintained switch pipe, has realized quick disjunction immediately; If generation electric voltage dropping, single-chip microcomputer detect electric voltage dropping sampled signal input through voltage sampling circuit and all be low level with normal break-make control sampled signal input end signal, show contactor power supply generation electric voltage dropping; Single-chip Controlling low pressure maintained switch is guaranteed and is held conducting; Low-voltage electric capacity provides contactor coil to keep the required energy of on-state through low pressure maintained switch tube discharge, guarantees that contactor does not discharge during electric voltage dropping; Can guarantee that A.C. contactor realizes contactor continuous service during the electric voltage dropping accurately, easily; Realize wide voltage power supply, have control conveniently, cost is low; Energy-conservation, characteristics such as application is strong.
Description of drawings
Fig. 1 is the schematic block circuit diagram of the utility model.
Fig. 2 implements one schematic block circuit diagram for the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done and to be further described.
As shown in Figure 1, a kind of reactance voltage based on low-voltage electric capacity falls wide voltage A.C. contactor controller, comprises rectifier bridge B, filter capacitor H; The excitatory switching tube M of heavy current, low pressure maintained switch pipe F, voltage sampling circuit G, Switching Power Supply J; Low pressure keeps power supply D, SCM system I, low-voltage capacitor C; Diode N, contactor coil E, external control switch K;
It is characterized in that: the end of the termination external control switch K of power supply A and the electric voltage dropping sampled signal input 3 among the voltage sampling circuit G; Normal break-make control sampled signal input 1 among AC side one end of another termination rectifier bridge B of external control switch K and the voltage sampling circuit G; The AC side other end of another termination rectifier bridge B of power supply A and the signal common port 2 among the voltage sampling circuit G; The anode of rectifier bridge B connects input and the positive pole of filter capacitor H of collector electrode, the Switching Power Supply J of the excitatory switching tube M of heavy current respectively; The emitter of the excitatory switching tube M of heavy current or source electrode join with the end of contactor coil E, emitter or the source electrode of low pressure maintained switch pipe F respectively; The negative terminal of rectifier bridge B keeps negative terminal, the negative pole of low-voltage capacitor C, the diode N positive pole of power supply D to join with another input of Switching Power Supply J, the negative pole of filter capacitor H, the other end of contactor coil E, the low pressure among the Switching Power Supply J respectively; The collector electrode of the anode of low pressure maintenance power supply D and the positive pole of low-voltage capacitor C, diode N negative pole, low pressure maintained switch pipe F joins; The output 4 of voltage sampling circuit G is received the input a of SCM system I; The output 5 of the electric voltage dropping sampled signal of voltage sampling circuit G is received the input b of SCM system I; Two outputs of Switching Power Supply J join with the power end of SCM system I power end, voltage sampling circuit G respectively; Two delivery outlets of SCM system I join with the control utmost point of the excitatory switching tube M of heavy current, the control utmost point of low pressure maintained switch pipe F respectively, and it is a power supply among the Switching Power Supply J that low pressure keeps power supply D.
What deserves to be mentioned is that the excitatory switching tube M of the described heavy current of the utility model is IGBT igbt or transistor or MOSFET FET.Described low pressure maintained switch pipe F is IGBT igbt or transistor or MOSFET FET.
When external control switch is closed, SCM system judges it is DC power supply or AC power earlier after voltage sampling circuit detects normal break-make control sampled signal and shows that contactor applies excitation power supply voltage; According to the size of supply voltage, SCM system is controlled the conducting of low pressure maintained switch pipe with different frequencies and the excitatory switching tube work of duty ratio control heavy current then; In the excitatory switching tube of the heavy current turn-off time, the contactor coil electric current is realized the strong excitatory start-up course of optimization under the wide power voltage through low pressure maintained switch pipe and diode continuousing flow; After Contactor Starting is accomplished; Because required maintenance energy is very little, still be in conducting state by SCM system control low pressure maintained switch pipe, the Switching Power Supply mesolow keeps power supply to make contactor coil be in the small-power state through low pressure maintained switch pipe; Realize energy-saving run; When external control switch is opened, it is that low level shows that contactor should normally divide and has no progeny that single-chip microcomputer detects normal break-make control sampled signal through voltage sampling circuit, immediately through low pressure maintained switch pipe; Realized quick disjunction; If generation electric voltage dropping, single-chip microcomputer detect electric voltage dropping sampled signal input through voltage sampling circuit and all be low level with normal break-make control sampled signal input end signal, show contactor power supply generation electric voltage dropping; Single-chip Controlling low pressure maintained switch is guaranteed and is held conducting; Low-voltage electric capacity provides contactor coil to keep the required energy of on-state through low pressure maintained switch tube discharge, guarantees that contactor does not discharge during electric voltage dropping.
As shown in Figure 2, a kind of reactance voltage based on low-voltage electric capacity falls wide voltage A.C. contactor controller, comprises rectifier bridge B; Filter capacitor H, the excitatory switching tube M of heavy current, low pressure maintained switch pipe F; Voltage sampling circuit G, Switching Power Supply J, low pressure keeps power supply D; SCM system I; The low-voltage capacitor C, diode N, contactor coil E; It is characterized in that: described external control switch K changes hand push button K into; The end of power supply A is taken over an end of moving button K normally open contact, the end of Self-lock contactor normally open contact E1 respectively, and the other end of the other end of hand push button K normally open contact and Self-lock contactor normally open contact E1, the electric voltage dropping sampled signal input among the voltage sampling circuit G 3 join with an end of hand push button K normally closed interlock, normal break-make control sampled signal input 1 among another termination voltage sampling circuit G of manual button K normally closed interlock and AC side one end of rectifier bridge B; The AC side other end of another termination rectifier bridge B of power supply A and the signal common port 2 among the voltage sampling circuit G, other part-structures are identical with the utility model.
When hand push button K normally open contact is closed, SCM system judges it is DC power supply or AC power earlier after voltage sampling circuit detects normal break-make control sampled signal and shows that contactor applies excitation power supply voltage; According to the size of supply voltage, SCM system is controlled the conducting of low pressure maintained switch pipe with different frequencies and the excitatory switching tube work of duty ratio control heavy current then; In the excitatory switching tube of the heavy current turn-off time, the contactor coil electric current is realized the strong excitatory start-up course of optimization under the wide power voltage through low pressure maintained switch pipe and diode continuousing flow; After Contactor Starting is accomplished; Because required maintenance energy is very little, still be in conducting state by SCM system control low pressure maintained switch pipe, the Switching Power Supply mesolow keeps power supply to make contactor coil be in the small-power state through low pressure maintained switch pipe; Realize energy-saving run; When hand push button K normally closed interlock is opened, it is that low level shows that contactor should normally divide and has no progeny that single-chip microcomputer detects normal break-make control sampled signal through voltage sampling circuit, immediately through low pressure maintained switch pipe; Realized quick disjunction; If generation electric voltage dropping, single-chip microcomputer detect electric voltage dropping sampled signal input through voltage sampling circuit and all be low level with normal break-make control sampled signal input end signal, show contactor power supply generation electric voltage dropping; Single-chip Controlling low pressure maintained switch is guaranteed and is held conducting; Low-voltage electric capacity provides contactor coil to keep the required energy of on-state through low pressure maintained switch tube discharge, guarantees that contactor does not discharge during electric voltage dropping.
More than be the preferred embodiment of the utility model, all changes of being done according to the utility model technical scheme when the function that is produced does not exceed the scope of the utility model technical scheme, all belong to the protection range of the utility model.
Claims (5)
1. the reactance voltage based on low-voltage electric capacity falls wide voltage A.C. contactor controller, comprises that rectifier bridge (B), filter capacitor (H), the excitatory switching tube of heavy current (M), low pressure maintained switch pipe (F), voltage sampling circuit (G), Switching Power Supply (J), low pressure keep power supply (D), SCM system (I), low-voltage electric capacity (C), diode (N), contactor coil (E) and external control switch (K);
It is characterized in that: an end of the said external control switch of a termination (K) of a power supply (A) and the electric voltage dropping sampled signal input (3) in the said voltage sampling circuit (G); Normal break-make control sampled signal input (1) in AC side one end of another termination rectifier bridge (B) of external control switch (K) and the voltage sampling circuit (G); The AC side other end of another termination rectifier bridge (B) of power supply (A) and the signal common port (2) in the voltage sampling circuit (G), the anode of rectifier bridge (B) connect input and the positive pole of filter capacitor (H) of collector electrode, the Switching Power Supply (J) of the excitatory switching tube of heavy current (M) respectively; The emitter of one end of the emitter of the excitatory switching tube of heavy current (M) and contactor coil (E), low pressure maintained switch pipe (F) joins; The negative terminal of rectifier bridge (B) respectively and the negative pole of another input of Switching Power Supply (J), filter capacitor (H), the other end of contactor coil (E), the low pressure in the Switching Power Supply (J) keep negative terminal, the negative pole of low-voltage electric capacity (C), diode (N) positive pole of power supply (D) to join; The collector electrode of the anode of low pressure maintenance power supply (D) and the positive pole of low-voltage electric capacity (C), diode (N) negative pole, low pressure maintained switch pipe (F) joins; The output (4) of voltage sampling circuit (G) is received the first input end of SCM system (I); The output (5) of the electric voltage dropping sampled signal of voltage sampling circuit (G) is received second input of SCM system (I); Two outputs of Switching Power Supply (J) join with the power end of SCM system (I) power end, voltage sampling circuit (G) respectively; Two delivery outlets of SCM system (I) join with the control utmost point of the excitatory switching tube of heavy current (M), the control utmost point of low pressure maintained switch pipe (F) respectively, and it is a power supply in the Switching Power Supply (J) that low pressure keeps power supply (D).
2. the reactance voltage based on low-voltage electric capacity according to claim 1 falls wide voltage A.C. contactor controller, it is characterized in that: the excitatory switching tube of described heavy current (M) is IGBT igbt or transistor or MOSFET FET.
3. the reactance voltage based on low-voltage electric capacity according to claim 1 falls wide voltage A.C. contactor controller, it is characterized in that: described low pressure maintained switch pipe (F) is IGBT igbt or transistor or MOSFET FET.
4. the reactance voltage based on low-voltage electric capacity according to claim 1 falls wide voltage A.C. contactor controller, it is characterized in that: described low-voltage electric capacity is super capacitor or low-voltage electrochemical capacitor.
5. the reactance voltage based on low-voltage electric capacity according to claim 1 falls wide voltage A.C. contactor controller; It is characterized in that: described external control switch changes hand push button into; One end of power supply (A) is taken over an end of moving button normally open contact, an end of Self-lock contactor normally open contact (E1) respectively; Electric voltage dropping sampled signal input (3) in the other end of the other end of hand push button normally open contact and Self-lock contactor normally open contact (E1), the voltage sampling circuit (G) joins with an end of hand push button normally closed interlock; Normal break-make control sampled signal input (1) in another termination voltage sampling circuit (G) of manual button normally closed interlock and AC side one end of rectifier bridge (B), the AC side other end of another termination rectifier bridge (B) of power supply (A) and the signal common port (2) in the voltage sampling circuit (G).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220296532 CN202633175U (en) | 2012-06-25 | 2012-06-25 | Voltage sagging prevention wide voltage alternating current contactor controller based on low voltage capacitance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220296532 CN202633175U (en) | 2012-06-25 | 2012-06-25 | Voltage sagging prevention wide voltage alternating current contactor controller based on low voltage capacitance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202633175U true CN202633175U (en) | 2012-12-26 |
Family
ID=47386336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220296532 Expired - Fee Related CN202633175U (en) | 2012-06-25 | 2012-06-25 | Voltage sagging prevention wide voltage alternating current contactor controller based on low voltage capacitance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202633175U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247475A (en) * | 2013-05-15 | 2013-08-14 | 江苏大学 | Constant-magnetic maintaining AC contactor control circuit and control method thereof |
| CN106154892A (en) * | 2015-03-30 | 2016-11-23 | 黄世勇 | A kind of relay zero-crossing triggers on-off circuit |
-
2012
- 2012-06-25 CN CN 201220296532 patent/CN202633175U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247475A (en) * | 2013-05-15 | 2013-08-14 | 江苏大学 | Constant-magnetic maintaining AC contactor control circuit and control method thereof |
| CN106154892A (en) * | 2015-03-30 | 2016-11-23 | 黄世勇 | A kind of relay zero-crossing triggers on-off circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204794705U (en) | Multiplexed output flyback converter of uninterrupted power supply | |
| CN103841725B (en) | To release control module, controllable silicon light modulation LED drive circuit and system | |
| CN108512256B (en) | Multifunctional vehicle-mounted charge-discharge integrated system | |
| CN206250979U (en) | A kind of quasi-resonance active-clamp flyback converter | |
| CN201584367U (en) | AC and DC general voltage dropout preventive contactor controller | |
| CN201345614Y (en) | High-power audio power amplifier switching power supply circuit | |
| CN203313500U (en) | Silicon controlled dimming LED driving circuit | |
| CN203660880U (en) | Two-stage boost topological circuit | |
| CN101510485B (en) | Full width voltage contactor controller | |
| CN102693872B (en) | Alternating-current contactor controller and control method based on low-voltage capacitor | |
| CN105958600B (en) | Solar mobile phone charging power-supply system based on ARM control | |
| CN202633175U (en) | Voltage sagging prevention wide voltage alternating current contactor controller based on low voltage capacitance | |
| CN208046259U (en) | A kind of active equalization circuit of series-connected batteries | |
| CN106300925A (en) | Driving control circuit, method and the system thereof of AC DC circuit | |
| CN204068702U (en) | A kind of non-isolation type high-gain DC/DC converter | |
| CN101924481B (en) | PFC (Power Factor Correction) rectifier circuit | |
| CN106602653B (en) | A kind of lithium ion battery non-dissipative equalizing circuit | |
| CN209016790U (en) | A kind of Dual-power automatic switching DC power-supply circuit | |
| CN101154814A (en) | Electric energy feedback type reactive-load self-compensation method and apparatus | |
| CN203434855U (en) | Control circuit applied to power factor correction circuit | |
| CN106602861B (en) | Improve the control circuit of Active PFC transfer efficiency | |
| CN204906192U (en) | Boost module is recommended to wide region full cut -off ring high efficiency | |
| CN106992491A (en) | Standby power-off energy-saving device and power-off energy-saving method for high-power electric equipment | |
| CN202931191U (en) | Storage battery pulse charging and discharging power supply | |
| CN104795276B (en) | The method of supplying power to and circuit of a kind of A.C. contactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20150625 |
|
| EXPY | Termination of patent right or utility model |