CN201742077U - Multifunctional soft limit protector - Google Patents
Multifunctional soft limit protector Download PDFInfo
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- CN201742077U CN201742077U CN2010202191636U CN201020219163U CN201742077U CN 201742077 U CN201742077 U CN 201742077U CN 2010202191636 U CN2010202191636 U CN 2010202191636U CN 201020219163 U CN201020219163 U CN 201020219163U CN 201742077 U CN201742077 U CN 201742077U
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Abstract
The utility model discloses a multifunctional soft limit protector, comprising a power failure protecting module, a soft starting module and an overload protecting module; phase shifting is carried out by an over-zero triggering circuit when a motor is started so as to adjust a phase angle alpha (0-180 degrees) of the current, so that the power supply voltage of the motor increases slowly and the power supply current enlarges slowly, and when the guide angle reaches to 180 degrees, the motor runs with full power, impact current is avoided from damaging other parts of the whole machine when the motor is started. At the moment, the multifunctional soft limit starting process is ended, motor power supply is cut off by a current overload relay when an overload protecting whole machine is in working so as to protect relevant parts from being damaged.
Description
Technical field
The utility model relates to a kind of multifunctional soft limit protector, is used for electric product, and particularly the electric tool product starts the safeguard protection after cutting off the power supply, and belongs to the electric product technical field.
Background technology
The electric tool kind is more; but the electric tool of market sale generally adopts motor directly to drive load; starting current and starting torque are big; motor is fragile; have influence on the useful life of complete machine, during its machine excess load, the drive disk assembly of complete machine just might damage; fragile because of motor self also overcurrent, need a kind of overload protection arrangement to protect machine.After the prior machine unknown cause outage; use or maintenance personal are when inspection machine; when restoring electricity suddenly, electrical network easily personnel are damaged; comprehensive its above-mentioned deficiency; pressing for a kind of machine in the market can start gently; can protect automatically after the outage, motor starts no longer voluntarily, cuts off the product of motor power supply circuits.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of multifunctional soft limit protector to be provided.
The technical solution adopted in the utility model is: a kind of multifunctional soft limit protector comprises power failure protection module, soft start module and overload protection module;
Described power failure protection module circuit connecting relation is: resistance R 1 one termination switches and relay K 1, another relay termination, the C utmost point of triode Q1 and resistance R 2, resistance R 2 one terminating resistor R1, triode Q1 and relay K 1, resistance R 2 another termination capacitor C 2+the B utmost point of the utmost point and triode Q2, the C utmost point of resistance R 3 one termination triode Q2, capacitor C 1+end and the contact 1 of current relay, another termination capacitor C 3+hold, diode D1-utmost point, 1 pin of resistance R 4 and K switch, a termination capacitor C4 of resistance R 4,1 pin of another termination K switch, capacitor C 3+end, diode D1-utmost point and resistance R 3,5 pin of a relay termination J2 of resistance R 5,1 pin of capacitor C 4 and 220V voltage input end JP2,2 pin of another termination 220V power input, zener D1+utmost point, diode D2-utmost point, an end of capacitor C 5,2 pin of the JP3 of MOTOR, resistance R 7 and resistance R 6; Described capacitor C 1-the E utmost point of termination triode Q1, the E utmost point of triode Q2, ground connection, the C utmost point of other end triode Q2, the contact 1 of resistance R 3 and current relay, capacitor C 2+terminating resistor R2 and B utmost point triode Q2 ,-utmost point ground connection, capacitor C 3+termination other end connecting resistance R3, diode D1-utmost point, 1 pin of resistance R 4 and K switch, other end ground connection, one terminating resistor R4 of capacitor C 4,5 pin of one relay termination J2 of another termination, 1 pin of resistance R 5 and 220V voltage input end JP2, a termination capacitor C6+ utmost point of capacitor C 5, capacitor C 10, resistance R 8, the end of the output of relay K 1 and controllable silicon Q4,2 pin of another termination 220V power input, diode D1+utmost point, diode D2-utmost point, an end of capacitor C 5,2 pin of the JP3 of MOTOR, resistance R 7, resistance R 5 and resistance R 6.
Concrete operation principle is to have electric current to flow through on electric capacity J1 after switch closes a floodgate, J1 adhesive machine works, as sudden power, power up power supply under the situation that machine K does not reset, at this moment voltage is not set up as yet on C3, and capacitor C 1 has electric current to flow through, because the electric capacity both end voltage can not be suddenlyd change (this is a capacitance characteristic), Q1 can't set up conducting voltage like this, and the B pole tension of Q1 is not higher than 0.7V, and the Q2 conducting, the C pole tension with Q1 pulls into electronegative potential again, and J1 can not work, power supply send less than motor, motor does not change like this, avoids machine to start suddenly, has only the machine that closes a floodgate again after K switch resetted to run well.
Described soft start modular circuit annexation is: a termination capacitor C6+ utmost point of capacitor C 10, capacitor C, resistance R 8, the end of the output of relay K 1 and controllable silicon Q4, other end connecting resistance R18, one termination capacitor C10 of resistance R 18,1 pin of the JP3 of another termination controllable silicon Q4 and MOTOR, the A1 terminating resistor R8 of controllable silicon Q4, the capacitor C 6+ utmost point, capacitor C 10, capacitor C 5, the output of relay K 1,1 pin of the JP3 of A2 terminating resistor R18 and MOTOR, G utmost point connecting resistance R17, the one termination capacitor C6+ utmost point of resistance R 8, capacitor C 10, capacitor C 5, the end of the output of relay K 1 and controllable silicon Q4, other end connecting resistance R9, resistance R 13,8 pin of the diode D4-utmost point and integrated circuit LM358AD, one terminating resistor R8 of resistance R 9, resistance R 13,8 pin of the diode D4-utmost point and integrated circuit LM358AD, other end connecting resistance R10, resistance R 14 and capacitor C 7+end, one terminating resistor R9 of resistance R 10, resistance R 14 and capacitor C 7+end, other end connecting resistance R11,2 pin of integrated circuit LM358AD, one terminating resistor R10 of resistance R 11,2 pin of integrated circuit LM358AD, other end connecting resistance R12, R15, the capacitor C 6-utmost point, capacitor C 8, the diode D4+ utmost point, the diode D6+ utmost point, the D7+ utmost point, the E utmost point of the D3+ utmost point and triode Q3,4 pin of integrated circuit LM358AD, a terminating resistor R11 of resistance R 12, resistance R 15, the capacitor C 6-utmost point, C8, the diode D4+ utmost point, the diode D6+ utmost point, the D7+ utmost point, the E utmost point of the D3+ utmost point and triode Q3,4 pin of integrated circuit LM358AD, 3 pin of other end connecting resistance R7 and integrated circuit LM358AD, one terminating resistor R8 of resistance R 13, resistance R 9,8 pin of the diode D4-utmost point and integrated circuit LM358AD, another termination capacitor C 8, diode D5+5 pin of the utmost point and integrated circuit LM358AD, a terminating resistor R9 of resistance R 14, resistance R 10 and capacitor C 7+end, other end connecting resistance R15, the capacitor C 7-utmost point, 6 pin of the diode D6-utmost point and integrated circuit LM358AD, a terminating resistor R14 of resistance R 15, the capacitor C 7-utmost point, 6 pin of the diode D6-utmost point and integrated circuit LM358AD, other end connecting resistance R11, resistance R 12, the capacitor C 6-utmost point, capacitor C 8, the diode D4+ utmost point, the diode D6+ utmost point, the diode D7+ utmost point, the E utmost point of the diode D3+ utmost point and triode Q3,4 pin of integrated circuit LM358AD, a termination capacitor C9 of resistance R 16, the diode D7-utmost point, another pin connects the B utmost point of triode Q3, the C utmost point of a termination triode Q3 of resistance R 17, the G utmost point of another termination controllable silicon Q4.
Concrete operation principle is by R6, D3, C6 provides power supply to ULM324, R12 and R7 detect the zero cross signal of power supply, R11 and R10 provide the current potential of zero cross fired to UIA, and the key element of soft start has been exactly a capacitor C 7, after the direct voltage of setting up on the capacitor C 6 is by R9 and R10 dividing potential drop, supplying with C7 during start, is high potential because the electric capacity both end voltage can not be suddenlyd change on the beginning U1B6 pin, along with the charging of C7, the C7 both end voltage strengthens, and the 6 pin voltages of LM324 constantly reduce, 7 pin of LM324 are constantly exported pulse to Q3, by Q3 signal is amplified the back and promote Q4 work, the angle of flow of Q4 also strengthens along with the voltage at capacitor C 7 two ends and increases, and the voltage exported of Q4 also from low to high like this, last full load is exported, and has finished the course of work of soft start.
Described overload protection module is finished by current relay J2, and the complete machine electric current all flows through from J2, when the electric current that flows through during greater than the setting electric current of J2; the normally-closed contact of J2 unclamps, and the base bias voltage of Q1 disappears, and K1 discharges; complete machine cuts off the power supply, and has realized the purpose of overload protection.
The utility model is applicable to that the soft limit of series machine starts protection and motor power-off protection and motor overload protection and is the circuit structure of one; motor is after circuit is connected; mild from slow to fast in 6 seconds, reach or near the maximum (top) speed of motor; machine detects current of electric and exceeds regime values when overload; the power supply of cut-out complete machine, the protection machine does not damage under the situation of overload.
After the power supply sudden power restored electricity again during the complete machine operate as normal, machine self can not start, and motor does not change, must be by after manually switch being resetted, and the connection circuit that closes a switch again, the soft again limit of machine starts the beginning operate as normal.
Load current at relay protection test series machine has or not to be used for whether moment is cut circuit.Machine in use circuit just has electric current, flows through the machine operate as normal.Behind power cut-off, there is not electric current in the loop of motor, flow through the protective circuit action; switch to the motor power supply circuits by midget universal relay; be in open-circuit condition by midget universal relay always when restoring electricity, be cut off at the motor power supply circuits, motor can not turn round; have only switch is resetted; midget universal relay is released, when reclosing switch, and the midget universal relay adhesive; the electrical power running, complete machine recovers the normal operation operating state.
Beneficial effect: it is to carry out phase shift by zero-cross triggering circuit by motor when starting to adjust the phase place α angle of electric current (0 degree-180 degree) motor supply power voltage and slowly rise that the utility model multifunctional soft limit starts; supply current slowly strengthens; when lead angle reaches 180 when spending; motor full power operation; impulse current when having avoided electric motor starting is to the injury of complete machine miscellaneous part; at this moment multifunctional soft limit start-up course finishes, and be not damaged by current overload relay cut-out motor power supply protection and associated components when working by the overload protection complete machine.
Description of drawings
Accompanying drawing is the utility model circuit diagram.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
As shown in drawings: a kind of multifunctional soft limit protector comprises power failure protection module, soft start module and overload protection module;
Described power failure protection module circuit connecting relation is: resistance R 1 one termination switches and relay K 1, another relay termination, the C utmost point of triode Q1 and resistance R 2, resistance R 2 one terminating resistor R1, triode Q1 and relay K 1, resistance R 2 another termination capacitor C 2+the B utmost point of the utmost point and triode Q2, the C utmost point of resistance R 3 one termination triode Q2, capacitor C 1+end and the contact 1 of current relay, another termination capacitor C 3+hold, diode D1-utmost point, 1 pin of resistance R 4 and K switch, a termination capacitor C4 of resistance R 4,1 pin of another termination K switch, capacitor C 3+end, diode D1-utmost point and resistance R 3,5 pin of a relay termination J2 of resistance R 5,1 pin of capacitor C 4 and 220V voltage input end JP2,2 pin of another termination 220V power input, zener D1+utmost point, diode D2-utmost point, an end of capacitor C 5,2 pin of the JP3 of MOTOR, resistance R 7 and resistance R 6; Described capacitor C 1-the E utmost point of termination triode Q1, the E utmost point of triode Q2, ground connection, the C utmost point of other end triode Q2, the contact 1 of resistance R 3 and current relay, capacitor C 2+terminating resistor R2 and B utmost point triode Q2 ,-utmost point ground connection, capacitor C 3+termination other end connecting resistance R3, diode D1-utmost point, 1 pin of resistance R 4 and K switch, other end ground connection, one terminating resistor R4 of capacitor C 4,5 pin of one relay termination J2 of another termination, 1 pin of resistance R 5 and 220V voltage input end JP2, a termination capacitor C6+ utmost point of capacitor C 5, capacitor C 10, resistance R 8, the end of the output of relay K 1 and controllable silicon Q4,2 pin of another termination 220V power input, diode D1+utmost point, diode D2-utmost point, an end of capacitor C 5,2 pin of the JP3 of MOTOR, resistance R 7, resistance R 5 and resistance R 6;
Described soft start modular circuit annexation is: a termination capacitor C6+ utmost point of capacitor C 10, capacitor C, resistance R 8, the end of the output of relay K 1 and controllable silicon Q4, other end connecting resistance R18, one termination capacitor C10 of resistance R 18,1 pin of the JP3 of another termination controllable silicon Q4 and MOTOR, the A1 terminating resistor R8 of controllable silicon Q4, the capacitor C 6+ utmost point, capacitor C 10, capacitor C 5, the output of relay K 1,1 pin of the JP3 of A2 terminating resistor R18 and MOTOR, G utmost point connecting resistance R17, the one termination capacitor C6+ utmost point of resistance R 8, capacitor C 10, capacitor C 5, the end of the output of relay K 1 and controllable silicon Q4, other end connecting resistance R9, resistance R 13,8 pin of the diode D4-utmost point and integrated circuit LM358AD, one terminating resistor R8 of resistance R 9, resistance R 13,8 pin of the diode D4-utmost point and integrated circuit LM358AD, other end connecting resistance R10, resistance R 14 and capacitor C 7+end, one terminating resistor R9 of resistance R 10, resistance R 14 and capacitor C 7+end, other end connecting resistance R11,2 pin of integrated circuit LM358AD, one terminating resistor R10 of resistance R 11,2 pin of integrated circuit LM358AD, other end connecting resistance R12, R15, the capacitor C 6-utmost point, capacitor C 8, the diode D4+ utmost point, the diode D6+ utmost point, the D7+ utmost point, the E utmost point of the D3+ utmost point and triode Q3,4 pin of integrated circuit LM358AD, a terminating resistor R11 of resistance R 12, resistance R 15, the capacitor C 6-utmost point, C8, the diode D4+ utmost point, the diode D6+ utmost point, the D7+ utmost point, the E utmost point of the D3+ utmost point and triode Q3,4 pin of integrated circuit LM358AD, 3 pin of other end connecting resistance R7 and integrated circuit LM358AD, one terminating resistor R8 of resistance R 13, resistance R 9,8 pin of the diode D4-utmost point and integrated circuit LM358AD, another termination capacitor C 8, diode D5+5 pin of the utmost point and integrated circuit LM358AD, a terminating resistor R9 of resistance R 14, resistance R 10 and capacitor C 7+end, other end connecting resistance R15, the capacitor C 7-utmost point, 6 pin of the diode D6-utmost point and integrated circuit LM358AD, a terminating resistor R14 of resistance R 15, the capacitor C 7-utmost point, 6 pin of the diode D6-utmost point and integrated circuit LM358AD, other end connecting resistance R11, resistance R 12, the capacitor C 6-utmost point, capacitor C 8, the diode D4+ utmost point, the diode D6+ utmost point, the diode D7+ utmost point, the E utmost point of the diode D3+ utmost point and triode Q3,4 pin of integrated circuit LM358AD, a termination capacitor C9 of resistance R 16, the diode D7-utmost point, another pin connects the B utmost point of triode Q3, the C utmost point of a termination triode Q3 of resistance R 17, the G utmost point of another termination controllable silicon Q4.
Claims (1)
1. a multifunctional soft limit protector is characterized in that: comprise power failure protection module, soft start module and overload protection module;
Described power failure protection module circuit connecting relation is: resistance R 1 one termination switches and relay K 1, another relay termination, the C utmost point of triode Q1 and resistance R 2, resistance R 2 one terminating resistor R1, triode Q1 and relay K 1, resistance R 2 another termination capacitor C 2+the B utmost point of the utmost point and triode Q2, the C utmost point of resistance R 3 one termination triode Q2, capacitor C 1+end and the contact 1 of current relay, another termination capacitor C 3+hold, diode D1-utmost point, 1 pin of resistance R 4 and K switch, a termination capacitor C4 of resistance R 4,1 pin of another termination K switch, capacitor C 3+end, diode D1-utmost point and resistance R 3,5 pin of a relay termination J2 of resistance R 5,1 pin of capacitor C 4 and 220V voltage input end JP2,2 pin of another termination 220V power input, zener D1+utmost point, diode D2-utmost point, an end of capacitor C 5,2 pin of the JP3 of MOTOR, resistance R 7 and resistance R 6; Described capacitor C 1-the E utmost point of termination triode Q1, the E utmost point of triode Q2, ground connection, the C utmost point of other end triode Q2, the contact 1 of resistance R 3 and current relay, capacitor C 2+terminating resistor R2 and B utmost point triode Q2 ,-utmost point ground connection, capacitor C 3+termination other end connecting resistance R3, diode D1-utmost point, 1 pin of resistance R 4 and K switch, other end ground connection, one terminating resistor R4 of capacitor C 4,5 pin of one relay termination J2 of another termination, 1 pin of resistance R 5 and 220V voltage input end JP2, a termination capacitor C6+ utmost point of capacitor C 5, capacitor C 10, resistance R 8, the end of the output of relay K 1 and controllable silicon Q4,2 pin of another termination 220V power input, diode D1+utmost point, diode D2-utmost point, an end of capacitor C 5,2 pin of the JP3 of MOTOR, resistance R 7, resistance R 5 and resistance R 6;
Described soft start modular circuit annexation is: a termination capacitor C6+ utmost point of capacitor C 10, capacitor C, resistance R 8, the end of the output of relay K 1 and controllable silicon Q4, other end connecting resistance R18, one termination capacitor C10 of resistance R 18,1 pin of the JP3 of another termination controllable silicon Q4 and MOTOR, the A1 terminating resistor R8 of controllable silicon Q4, the capacitor C 6+ utmost point, capacitor C 10, capacitor C 5, the output of relay K 1,1 pin of the JP3 of A2 terminating resistor R18 and MOTOR, G utmost point connecting resistance R17, the one termination capacitor C6+ utmost point of resistance R 8, capacitor C 10, capacitor C 5, the end of the output of relay K 1 and controllable silicon Q4, other end connecting resistance R9, resistance R 13,8 pin of the diode D4-utmost point and integrated circuit LM358AD, one terminating resistor R8 of resistance R 9, resistance R 13,8 pin of the diode D4-utmost point and integrated circuit LM358AD, other end connecting resistance R10, resistance R 14 and capacitor C 7+end, one terminating resistor R9 of resistance R 10, resistance R 14 and capacitor C 7+end, other end connecting resistance R11,2 pin of integrated circuit LM358AD, one terminating resistor R10 of resistance R 11,2 pin of integrated circuit LM358AD, other end connecting resistance R12, R15, the capacitor C 6-utmost point, capacitor C 8, the diode D4+ utmost point, the diode D6+ utmost point, the D7+ utmost point, the E utmost point of the D3+ utmost point and triode Q3,4 pin of integrated circuit LM358AD, a terminating resistor R11 of resistance R 12, resistance R 15, the capacitor C 6-utmost point, C8, the diode D4+ utmost point, the diode D6+ utmost point, the D7+ utmost point, the E utmost point of the D3+ utmost point and triode Q3,4 pin of integrated circuit LM358AD, 3 pin of other end connecting resistance R7 and integrated circuit LM358AD, one terminating resistor R8 of resistance R 13, resistance R 9,8 pin of the diode D4-utmost point and integrated circuit LM358AD, another termination capacitor C 8, diode D5+5 pin of the utmost point and integrated circuit LM358AD, a terminating resistor R9 of resistance R 14, resistance R 10 and capacitor C 7+end, other end connecting resistance R15, the capacitor C 7-utmost point, 6 pin of the diode D6-utmost point and integrated circuit LM358AD, a terminating resistor R14 of resistance R 15, the capacitor C 7-utmost point, 6 pin of the diode D6-utmost point and integrated circuit LM358AD, other end connecting resistance R11, resistance R 12, the capacitor C 6-utmost point, capacitor C 8, the diode D4+ utmost point, the diode D6+ utmost point, the diode D7+ utmost point, the E utmost point of the diode D3+ utmost point and triode Q3,4 pin of integrated circuit LM358AD, a termination capacitor C9 of resistance R 16, the diode D7-utmost point, another pin connects the B utmost point of triode Q3, the C utmost point of a termination triode Q3 of resistance R 17, the G utmost point of another termination controllable silicon Q4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202191636U CN201742077U (en) | 2010-06-08 | 2010-06-08 | Multifunctional soft limit protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202191636U CN201742077U (en) | 2010-06-08 | 2010-06-08 | Multifunctional soft limit protector |
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| Publication Number | Publication Date |
|---|---|
| CN201742077U true CN201742077U (en) | 2011-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202191636U Expired - Fee Related CN201742077U (en) | 2010-06-08 | 2010-06-08 | Multifunctional soft limit protector |
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| CN (1) | CN201742077U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107846000A (en) * | 2016-09-18 | 2018-03-27 | 上海旷驰投资发展有限公司 | The super temperature protective device of bidirectional power supply self- recoverage excessively stream |
-
2010
- 2010-06-08 CN CN2010202191636U patent/CN201742077U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107846000A (en) * | 2016-09-18 | 2018-03-27 | 上海旷驰投资发展有限公司 | The super temperature protective device of bidirectional power supply self- recoverage excessively stream |
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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: GAOYOU ELECTRICAL PLASTIC FACTORY Assignor: Wu Ruxi Contract record no.: 2012320000929 Denomination of utility model: Multifunction soft limit protector Granted publication date: 20110209 License type: Exclusive License Record date: 20120806 |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: GAOYOU ELECTRICAL PLASTIC FACTORY Assignor: Wu Ruxi Contract record no.: 2012320000929 Denomination of utility model: Multifunction soft limit protector Granted publication date: 20110209 License type: Exclusive License Record date: 20120806 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| 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: 20110209 Termination date: 20160608 |