CN201655679U - Low-voltage contactor delay circuit device - Google Patents
Low-voltage contactor delay circuit device Download PDFInfo
- Publication number
- CN201655679U CN201655679U CN2010201597106U CN201020159710U CN201655679U CN 201655679 U CN201655679 U CN 201655679U CN 2010201597106 U CN2010201597106 U CN 2010201597106U CN 201020159710 U CN201020159710 U CN 201020159710U CN 201655679 U CN201655679 U CN 201655679U
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- CN
- China
- Prior art keywords
- contactor
- coil
- delay circuit
- circuit
- circuit board
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- Expired - Fee Related
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Abstract
The utility model provides a low-voltage contactor delay circuit device, which comprises an electric appliance shell, wherein a circuit board is arranged in the shell, and a contactor KM, a transformer T and a coil K1 are arranged on the circuit board; the other ends of a normally closed button SB1 and a switch SB2 are connected with equipment, and the circuit board consists of a contactor circuit, a control loop, a delay circuit, a discharge loop and a relay; the coil of the contactor KM is connected with a winding of a primary side corresponding voltage value of the transformer T, and a normally open contact of the relay K is connected with a self-locking contact of the control loop of the contactor KM in parallel; and the normally closed button SB1 is additionally provided with a normally open contact which is connected with the delay circuit and the discharge loop. Since the AC coil is connected with an undischarged capacitor in parallel to be charged for standby, and the capacitor can automatically connect a circuit which is connected with the coil and discharge towards the coil, so that the continuously operated production line can not stop to work due to power-off; and the utility model has the characteristics of simple structure and convenient installation, and does not affect the work mode of the original control loop.
Description
Technical field
The utility model belongs to electric elements, is specially a kind of lv contactor delay circuit device.
Background technology
At the contactor coil that requires to use on the production line that keeps moving continuously, because long-term work load, former thereby cause instantaneous loss of pressure or when under-voltage because of certain, the electric voltage dropping at its contactor coil two ends is to the normal voltage value when following, cause its armature to discharge and make the minimum numerical value of electric network electric voltage drop, cause the production line outage of continuous operation to work, cause damage to enterprise.
Summary of the invention
The purpose of this utility model provides a kind of lv contactor delay circuit device, it is on AC coil and to connect a capacitor charging of not discharging standby, when the minimum numerical value of electric network electric voltage drop, the capacitor that connects on its AC coil can be connected the circuit that leads to coil and automatically to coil discharge, the production line of continuous operation can can't not worked because of outage, have characteristics simple in structure, easy for installation, as not influence former control loop work.
The purpose of this utility model is achieved through the following technical solutions: a kind of lv contactor delay circuit device, it has casing for electric appliances, housing is provided with normally closed button SB1 and switch S B2, be provided with circuit board in the housing, circuit board is provided with contactor KM, transformer T and coil K1, contactor KM, transformer T joins with coil K1 and then is connected with switch S B2 one end with normally closed button SB1, the normally closed button SB1 and the switch S B2 other end and equipment join, described circuit board is by contactor circuit, control loop, delay circuit, discharge loop and relay are formed, the winding of the primary side corresponding voltage value of contactor KM coil and transformer T joins, the self-holding contact of the normally opened contact of relay K and contactor KM control loop is in parallel, and normally closed button SB1 sets up normally opened contact and is connected with discharge loop with delay circuit.
Advantage of the present utility model is: because on AC coil and to connect a capacitor charging of not discharging standby, when the minimum numerical value of electric network electric voltage drop, the capacitor that connects on its AC coil can be connected the circuit that leads to coil and automatically to coil discharge, the production line of continuous operation can can't not worked because of outage, have simple in structure, easy for installation, do not influence former control loop working method, operation stops to be no more than delay time by being responsible for a task until it is completed, and is applicable to the characteristics of the contactor of all current classes.
Description of drawings
Fig. 1 is a structural representation of the present utility model.Fig. 2 is the circuit theory diagrams among Fig. 1.
Embodiment
1 is casing for electric appliances among the figure, housing 1 is provided with normally closed button SB1 and switch S B2, it is characterized in that: be provided with circuit board 2 in the housing 1, circuit board 2 is provided with contactor KM, transformer T and coil K1, contactor KM, transformer T joins with coil K1 and then is connected with switch S B2 one end with normally closed button SB1, the normally closed button SB1 and the switch S B2 other end and equipment join, described circuit board 2 is by contactor circuit, control loop, delay circuit, discharge loop and relay are formed, the winding of the primary side corresponding voltage value of contactor KM coil and transformer T joins, the self-holding contact of the normally opened contact of relay K and contactor KM control loop is in parallel, and normally closed button SB1 sets up normally opened contact and is connected with discharge loop with delay circuit.When the utility model uses, press switch S B2, make contactor KM get electric adhesive and self-locking, transformer T in the circuit loop with contactor KM simultaneously electric, the secondary voltage of transformer T is through rectifier bridge UR rectification, again through capacitor C 1 filtering, capacitor C 1 two ends obtain direct voltage, through resistance R capacitor C 2 is charged, capacitor C 2 chargings finish and make triode VT conducting, make relay K get electric adhesive, its normally opened contact closure, do decompression, under-voltage time-delay preparation.When decompression, when under-voltage, contactor KM dead electricity discharges its self-holding contact is disconnected, simultaneously capacitor C 2 to triode VT discharge, make it still keep conducting; And supply with coil K1 adhesive energy by capacitor C 1, but make still sticking time-delay certain hour of coil K1, power up is normal behind coil K1 time-delay certain hour, and contactor KM gets electric adhesive by the closed normally opened contact of relay K immediately, reaches the same effect of decompression time-delay.If normal Push switch SB1, main circuit dead electricity then, capacitor C 2 is often opened the button short circuit dischange by closed switch S B1 simultaneously, and coil K1 is not because triode VT has base current ends and discharge, contactor RM also discharges because of path all cuts off, and realizes under-voltage, decompression delay effect.The utility model not detailed description is a known technology.
Claims (1)
1. lv contactor delay circuit device, it has casing for electric appliances (1), housing (1) is provided with normally closed button SB1 and switch S B2, it is characterized in that: be provided with circuit board (2) in the housing (1), circuit board (2) is provided with contactor KM, transformer T and coil K1, contactor KM, transformer T joins with coil K1 and then is connected with switch S B2 one end with normally closed button SB1, the normally closed button SB1 and the switch S B2 other end and equipment join, described circuit board (2) is by contactor circuit, control loop, delay circuit, discharge loop and relay are formed, the winding of the primary side corresponding voltage value of contactor KM coil and transformer T joins, the self-holding contact of the normally opened contact of relay K and contactor KM control loop is in parallel, and normally closed button SB1 sets up normally opened contact and is connected with discharge loop with delay circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201597106U CN201655679U (en) | 2010-04-15 | 2010-04-15 | Low-voltage contactor delay circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201597106U CN201655679U (en) | 2010-04-15 | 2010-04-15 | Low-voltage contactor delay circuit device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201655679U true CN201655679U (en) | 2010-11-24 |
Family
ID=43120923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201597106U Expired - Fee Related CN201655679U (en) | 2010-04-15 | 2010-04-15 | Low-voltage contactor delay circuit device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201655679U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254747A (en) * | 2011-07-22 | 2011-11-23 | 淄博真空设备厂有限公司 | Method for ensuring continuous running of equipment under mechanical vibration condition and dedicated relay |
| CN102709114A (en) * | 2012-06-13 | 2012-10-03 | 新兴铸管股份有限公司 | Fixed-time automatic power off device |
| CN102779686A (en) * | 2012-08-14 | 2012-11-14 | 中国振华集团群英无线电器材厂 | Power off delay type sealed hybrid delay relay with load current up to 10A |
-
2010
- 2010-04-15 CN CN2010201597106U patent/CN201655679U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254747A (en) * | 2011-07-22 | 2011-11-23 | 淄博真空设备厂有限公司 | Method for ensuring continuous running of equipment under mechanical vibration condition and dedicated relay |
| CN102254747B (en) * | 2011-07-22 | 2014-05-28 | 淄博真空设备厂有限公司 | Method for ensuring continuous running of equipment under mechanical vibration condition and dedicated relay |
| CN102709114A (en) * | 2012-06-13 | 2012-10-03 | 新兴铸管股份有限公司 | Fixed-time automatic power off device |
| CN102709114B (en) * | 2012-06-13 | 2014-11-26 | 新兴铸管股份有限公司 | Fixed-time automatic power off device |
| CN102779686A (en) * | 2012-08-14 | 2012-11-14 | 中国振华集团群英无线电器材厂 | Power off delay type sealed hybrid delay relay with load current up to 10A |
| CN102779686B (en) * | 2012-08-14 | 2014-07-30 | 中国振华集团群英无线电器材厂 | Power off delay type sealed hybrid delay relay with load current up to 10A |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shandong Luye Reliable Electric Automation Co., Ltd. Assignor: Li Tianping Contract record no.: 2011370000252 Denomination of utility model: Low-voltage contactor delay circuit device Granted publication date: 20101124 License type: Exclusive License Record date: 20110613 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20110415 |