CN202363200U

CN202363200U - Integrated direct-current (DC) control circuit without holding coil

Info

Publication number: CN202363200U
Application number: CN201120510575XU
Authority: CN
Inventors: 田金铭
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-09
Filing date: 2011-12-09
Publication date: 2012-08-01
Anticipated expiration: 2021-12-09

Abstract

The utility model relates to an integrated direct-current (DC) control circuit without a holding coil. The integrated DC control circuit without the holding coil consists of a power supply circuit, a main circuit, a trigger circuit, a delay cutoff circuit and a holding circuit, wherein the power supply circuit consists of diodes (D1-D4), the main circuit consists of a load coil L and a thyristor KP, the trigger circuit consists of a resistor R1, a trigger tube D10, a capacitor C1 and a resistor R2, the delay cutoff circuit consists of a resistor R3, a voltage stabilizing tube D12, a triode D11, a capacitor C2 and a resistor R4, and the holding circuit consists of a transformer TB, a rectifier bridge formed by diodes (D5-D8), and a diode D9. The integrated DC control circuit without the holding coil is especially suitable for large-sized integrated DC electromagnetic products, a great economic effect can be obtained, and the reliability of the products can be greatly improved, e.g. with the adoption of the technology disclosed by the utility model, for a large-sized DC electromagnetic product with driving force of 300 kilograms, copper wires can be saved by 9 kilograms, the external diameter of the product is decreased to phi 183.5 from phi 222, materials are saved by 31 kilograms, the cost of manufacturing one product is decreased by 1327.9 RMB, the module cost is decreased by 200 RMB, and the product is reliable in performance and is difficultly damaged.

Description

This straightening flow control circuit of no hold-in winding

Technical field

The utility model relates to a kind of control technology of direct solenoid product, is specially adapted to the large-sized DC tractive electromagnet, the large-sized DC brake, and the large-sized DC pusher is accomplished its automatic control action.

Background technology

The shortcoming that old-fashioned direct solenoid product is many with copper cash, many with iron in order to change, power consumption is many.Present direct solenoid product has adopted big electric current starting to cut off automatically mostly, and little electric current keeps after the adhesive.This version, general not starting keeps two coils.The direct solenoid product of actuating force 300kg for example; Hold-in winding is used copper cash 9kg, so the external diameter of product strengthened 38.5 millimeters of φ, and material has been used 31kg more; Make the manufacturing cost total of every product increase by 1327.9 yuan, and every control module cost is up to 250 yuan.The high power valve that module needs not only is hard to buy, and also is prone to punch through damage, and reliability of products is affected, and the utility model has been developed the technical scheme that overcomes above-mentioned deficiency for this reason, is intended to improve product reliability, reduces the manufacturing cost expense of product.

The utility model content

The technical scheme of the utility model is; The rectifier bridge that power circuit is made up of diode D1-D4, a of bridge, 2 of b are connected on respectively on the AC power, and the direct voltage of the two ends of bridge output is added on the main circuit by loading coil L and controllable silicon KP series connection.D1-D4 bridge output dc voltage is added to the circuits for triggering of being made up of resistance R 1, trigger tube D10, capacitor C 1, resistance R 2 simultaneously, and is added to simultaneously on the time-delay cut-out circuit of being made up of resistance R 3, voltage-stabiliser tube D12, triode D11, capacitor C 2, resistance R 4.AC power also is added to the rectifier bridge of transformer TB and D5-D8 simultaneously, and the holding circuit of diode D9 composition, and the output of holding circuit and loading coil L also connect.

Description of drawings

Fig. 1 is the schematic diagram of this straightening flow control circuit of no hold-in winding.

Embodiment

The technical scheme practical implementation of the utility model is following; See accompanying drawing 1, the rectifier bridge that the power circuit of the utility model is made up of diode D1-D4, a of bridge, 2 of b are connected on the AC power respectively; The direct voltage of the two ends output of bridge is added in by the main circuit two ends after loading coil L and the controllable silicon KP series connection; The positive pole of direct voltage and C point join, and negative pole and D point join, and form circuits for triggering by resistance R 1, R2, capacitor C 1, trigger tube D10; The termination C point of R1; The other end is connected on the e point, trigger tube D10 1 termination e point, and the trigger electrode of the other end and controllable silicon KP joins.After C1 and the R2 parallel connection, a termination e point, the other end is connected on the D point; Form the cut-out circuit by resistance R 3, R4, capacitor C 2, voltage-stabiliser tube D12, triode D11, be connected on C point and D point respectively after R3, the R4 series connection, C2 is parallelly connected with R4; The negative terminal of D12 is connected on the node of R3, R4, and the base stage of anode and D11 is joined, and the emitter of D11 connects the D point; The D11 collector electrode connects the e point, and AC power is added on the primary coil of TB simultaneously, and the secondary coil two of TB terminates at the input of D5-D8 rectifier bridge; The logical diode D9 of the positive pole of the output of bridge connects the C point, and negative terminal connects the G point.

Operation principle: when AC power is added to a, b 2 points of D1-D4 rectifier bridge, D1-D4 rectifier bridge output dc voltage has been added to main circuit, circuits for triggering, time-delay simultaneously and has cut off on the circuit, and the trigger voltage that circuits for triggering provide is added to the trigger electrode of KP through D10; Therefore KP conducting, starting current makes the armature adhesive through L, and the time-delay voltage that circuit is cut off in time-delay simultaneously to be provided makes D12 and D10 conducting; Trigger voltage is by short circuit, and KP breaks off, and starting current is cut off; Because AC power also has been added on the transformer TB primary coil at the same time, its secondary voltage has been added to the input of D5-D8 rectifier bridge, and the sustaining voltage of bridge output is added on the L through diode D9; Therefore L flows through two kinds of electric currents of starting maintenance simultaneously, so starting current cuts off, armature still adhesive keeps; When the power supply disconnection, holding current disappears, and armature discharges.

The effect that the utility model produces; Use the utility model technology not only can obtain bigger economic effect, has also improved reliability of products.For example the electromagnetic product of an actuating force 300kg can be used copper cash 9kg less, product external diameter Φ 222; Be reduced to Φ 183.5, use material 31kg less, the cost of module has also descended 200 yuan; The manufacturing cost expense of every product has reduced by 1327.9 yuan, and element is prone to buy low price; Not fragile, improved reliability of products greatly.

Claims

1. do not have this straightening flow control circuit of hold-in winding, it is characterized in that D1-D4 forms rectifier bridge by diode, a of bridge, 2 of b connect AC power; The output 1 termination C point of bridge, another termination D point, after loading coil L and the controllable silicon KP series connection, L 1 termination C point; The G point and the controllable silicon KP anode of the other end join, and the negative electrode of KP connects the D point, after resistance R 1 is connected with resistance R 2, and the termination C point of R1; Termination D point of resistance R 2, capacitor C 1 also connects with R2, the node e of R1, R2 and the end of trigger tube D10 join, and and the collector electrode of triode D11 join; The base stage of D11 and voltage-stabiliser tube D12 anode join, and the negative electrode of D12 is connected on the node of resistance R 3, R4, after R3, the R4 series connection; Termination C point, another termination D point, capacitor C 2 and R4 also connect; Transformer TB primary coil two ends and AC power are joined, and two of secondary coil terminates at the input of D5-D8 rectifier bridge, and its output joins with C point and the G point of L respectively through diode D9.