CN207705874U - A kind of construction stand-by power supply charging circuit - Google Patents

Abstract

The utility model discloses a kind of construction stand-by power supply charging circuits; including power pack circuit, under-voltage detection protection circuit, overvoltage detection protection circuit and voltage regulator circuit; bridge type rectification circuit, pi type filter circuit and the zener diode D7 that power pack circuit includes step-down transformer W, is made of diode D3 D6, under-voltage detection protection circuit includes resistance R5, triode V3, resistance R6 and relay K.The utility model construction is mobile power technology with stand-by power supply charging circuit; the combination of the elements such as triode and relay is used only in it; make circuit while having the function of under-voltage protection, automatic stabilisation, continuing pressure regulation and additives for overcharge protection; it can safely and effectively charge to accumulation power supply; charging process is without artificial supervision; securely and reliably, therefore the construction stand-by power supply larger suitable for energy storage capacity uses.

Description

A kind of construction stand-by power supply charging circuit

Technical field

The utility model is related to a kind of charging circuit, specifically a kind of construction stand-by power supply charging circuit.

Background technology

With the continuous development of China's power industry, electric power has become the most important energy in people's production and living, Future will also replace the non-renewable resources such as oil, natural gas, thus power equipment have become it is essential in life A part, especially production, manufacturing industry, DC voltage fluctuate small, are widely used in electricity due to having many advantages, such as stability height Gas construction technology, this kind of electric device requires that there are one stable DC sources, when especially constructing outdoors, is laid with exchange Supply line is very inconvenient, and for the electrical load of some high currents, needs higher voltage to drive, need at this time larger Mobile power could supply, the mobile power of large volume its security performance in charging, which needs to obtain strength, to be ensured, otherwise may be used The serious consequences such as leak electricity, catch fire can be caused.

Utility model content

The purpose of this utility model is to provide a kind of construction stand-by power supply charging circuits, to solve above-mentioned background technology The problem of middle proposition.

To achieve the above object, the utility model provides the following technical solutions：

A kind of construction stand-by power supply charging circuit, including power pack circuit, under-voltage detection protection circuit, overvoltage detection Circuit and voltage regulator circuit, the power pack circuit is protected to protect circuit to connect voltage regulator circuit by under-voltage detection, Voltage regulator circuit is also connected with overvoltage detection protection circuit, and overvoltage detection protection circuit connects energy-storage battery E to be charged.

Preferred embodiment as the utility model：The power pack circuit includes step-down transformer W, by diode D3- The armature winding connection 220V of bridge type rectification circuit, pi type filter circuit and the zener diode D7 of D6 compositions, transformer W are handed over Galvanic electricity, the cathode of the anode and diode D6 of secondary windings one end connection diode D5 of transformer W, transformer W it is secondary around The cathode of the anode and diode D4 of group other end connection diode D3, the cathode of the cathode connection diode D5 of diode D3, The other end connection capacitance C2 of capacitance C1 and inductance L1, inductance L1, the cathode and DC voltage VCC of diode D7, diode D4 The anode of anode connection diode D6, capacitance C1 the other end and inductance L2, the other end connection capacitance C2's of inductance L2 is another One end, the anode of diode D7 and ground terminal GND.

Preferred embodiment as the utility model：The under-voltage detection protection circuit includes resistance R5, triode V3, resistance R6 and relay K, overvoltage detection protection circuit includes diode D2, triode V2 and resistance R2, and voltage regulator circuit includes three The collector of one end connecting triode V3 of pole pipe V1, resistance R1 and three end adjustable reference source P, resistance R5, the contact of relay K The collector of the other end connection resistance R1 and triode V1 of the contact K-1 of K-1 and DC voltage VCC, relay K, resistance R5 The other end connection resistance R6 and triode V3 base stage, the other end connection resistance R2 of resistance R6, energy-storage battery E to be charged Cathode, a fixing end of potentiometer RP1, relay K, the emitter of triode V2, three end adjustable reference source P anode and connect The other end of the emitter connection relay K of ground terminal GND, triode V3, the base stage of the other end connecting triode V1 of resistance R1 With the cathode of three end adjustable reference source P, the sliding end of the reference pole connection potentiometer RP1 of three end adjustable reference source P, triode V1 Emitter connection potentiometer RP1 another fixing end, the anode of diode D1, the anode of diode D2 and resistance R4, electricity Hinder the anode of the cathode of the other end connection diode D1 of R4, the collector and energy-storage battery E to be charged of triode V2.

Preferred embodiment as the utility model：The model TL431 of the three ends adjustable reference source P.

Preferred embodiment as the utility model：The pi type filter electricity routing capacitance C1, capacitance C2, inductance L1 and electricity Feel L2 compositions.

Preferred embodiment as the utility model：The model of diode D1-D6 is IN4001.

Preferred embodiment as the utility model：The relay K is normally opened contact relay.

Compared with prior art, the utility model has the beneficial effects that：The utility model construction is charged electric with stand-by power supply Road is mobile power technology, and the combination of the elements such as triode and relay is used only, make circuit and meanwhile have under-voltage protection, oneself Dynamic stability, continue pressure regulation and additives for overcharge protection function, can safely and effectively charge to accumulation power supply, charging process without It need to manually supervise, securely and reliably, therefore the construction stand-by power supply larger suitable for energy storage capacity uses.

Description of the drawings

Fig. 1 is the circuit diagram of construction stand-by power supply charging circuit.

Fig. 2 is the circuit diagram of power pack circuit.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

- 2 are please referred to Fig.1, a kind of construction stand-by power supply charging circuit, including power pack circuit, under-voltage detection are protected Circuit, overvoltage detection protection circuit and voltage regulator circuit, power pack circuit include step-down transformer W, by diode D3-D6 Bridge type rectification circuit, pi type filter circuit and the zener diode D7 of composition, under-voltage detection protection circuit includes resistance R5, three Pole pipe V3, resistance R6 and relay K, overvoltage detection protection circuit includes diode D2, triode V2 and resistance R2, and voltage is adjusted Circuit includes the armature winding connection 220V alternating currents of triode V1, resistance R1 and three end adjustable reference source P, transformer W, transformation The cathode of the anode and diode D6 of secondary windings one end connection diode D5 of device W, the secondary windings other end of transformer W connect Connect the cathode of the anode and diode D4 of diode D3, cathode, capacitance C1 and the electricity of the cathode connection diode D5 of diode D3 Feel L1, the other end connection capacitance C2 of inductance L1, the cathode and DC voltage VCC of diode D7, the anode connection of diode D4 The other end, the diode of the other end connection capacitance C2 of the anode of diode D6, the other end of capacitance C1 and inductance L2, inductance L2 The anode and ground terminal GND of D7.The collector of one end connecting triode V3, the contact K-1 of relay K and the direct current of resistance R5 Press VCC, the collector of the other end connection resistance R1 and triode V1 of the contact K-1 of relay K, the other end connection of resistance R5 The base stage of resistance R6 and triode V3, the other end connection resistance R2 of resistance R6, cathode, the potentiometer of energy-storage battery E to be charged A fixing end of RP1, relay K, the emitter of triode V2, the anode of three end adjustable reference source P and ground terminal GND, three The other end of the emitter connection relay K of pole pipe V3, the base stage of the other end connecting triode V1 of resistance R1 and three ends are adjustable The cathode of a reference source P, the sliding end of the reference pole connection potentiometer RP1 of three end adjustable reference source P, the emitter of triode V1 connect Another fixing end of potentiometer RP1, the anode of diode D1, the anode of diode D2 and resistance R4 are met, resistance R4's is another The anode of the cathode of end connection diode D1, the collector and energy-storage battery E to be charged of triode V2.

The operation principle of the utility model is：Transformer W in power pack circuit is step-down transformer, is carried out to alternating current Decompression, diode D3-D7 carry out rectification to circuit, and pi type filter can eliminate the harmonic wave interference in alternating current, zener diode D7 For stabilizing the output voltage VCC, base stage of the output voltage by being added in triode V3 after the partial pressure of resistance R5 and resistance R6, electricity When positive pressure is normal, triode V3 conducting, relay K is powered, and contact K-1 is attracted, subsequent circuit obtain it is electric, when encountering because of city's electric wave Dynamic when VCC voltages being caused to be less than under-voltage critical value, triode V3 cut-offs, relay K dead electricity, contact K-1 disconnects, and reaches under-voltage The purpose of protection, triode V1, resistance R1 and three end adjustable reference source P in circuit form regulating circuit, and output voltage is logical Overpotential device RP1 feeds back to the reference pole of P, to change the cathode potential of P, and then achievees the purpose that adjust triode V1, can To adjust the height of output voltage by adjusting RP1.Triode V2, resistance R2 and diode D2 compositions overcharge protection module, The voltage of V2 base stages is divided to obtain by diode D2 and resistance R2.With the progress of charging, the voltage of energy-storage battery E constantly rises The base voltage of height, triode V2 increases, when fully charged, triode V2 conductings, to protect energy-storage battery E from mistake Fill damage.Therefore, even if charging for a long time to battery, battery will not be damaged.

Claims (7)

1. a kind of construction stand-by power supply charging circuit, including power pack circuit, under-voltage detection protect circuit, overvoltage detection to protect Protection circuit and voltage regulator circuit, which is characterized in that the power pack circuit protects circuit to connect voltage by under-voltage detection Circuit is adjusted, voltage regulator circuit is also connected with overvoltage detection protection circuit, and overvoltage detection protection circuit connects energy storage electricity to be charged Pond E.

2. a kind of construction stand-by power supply charging circuit according to claim 1, which is characterized in that the power pack electricity Bridge type rectification circuit, pi type filter circuit and the zener diode that road includes step-down transformer W, is made of diode D3-D6 The armature winding of D7, transformer W connects 220V alternating currents, the anode of secondary windings one end connection diode D5 of transformer W and The cathode of diode D6, the cathode of the anode and diode D4 of the secondary windings other end connection diode D3 of transformer W, two poles Other end connection capacitance C2, the diode D7 of cathode, capacitance C1 and the inductance L1 of the cathode connection diode D5 of pipe D3, inductance L1 Cathode and the anode of anode connection diode D6 of DC voltage VCC, diode D4, capacitance C1 the other end and inductance L2, The other end of the other end connection capacitance C2 of inductance L2, the anode and ground terminal GND of diode D7.

3. a kind of construction stand-by power supply charging circuit according to claim 1, which is characterized in that the under-voltage detection is protected Protection circuit includes resistance R5, triode V3, resistance R6 and relay K, and overvoltage detection protection circuit includes diode D2, triode V2 and resistance R2, voltage regulator circuit include one end connection of triode V1, resistance R1 and three end adjustable reference source P, resistance R5 The collector of triode V3, the contact K-1 of relay K and DC voltage VCC, relay K contact K-1 the other end connection electricity The collector of R1 and triode V1 are hindered, the base stage of the other end connection resistance R6 and triode V3 of resistance R5, resistance R6's is another The hair of end connection resistance R2, the cathode of energy-storage battery E to be charged, a fixing end of potentiometer RP1, relay K, triode V2 The anode and ground terminal GND of emitter-base bandgap grading, three end adjustable reference source P, the other end of the emitter connection relay K of triode V3, electricity Hinder the cathode of the base stage and three end adjustable reference source P of the other end connecting triode V1 of R1, the reference pole of three end adjustable reference source P Connect the sliding end of potentiometer RP1, another fixing end of the emitter connection potentiometer RP1 of triode V1, diode D1 Anode, the anode of diode D2 and resistance R4, the cathode of the other end connection diode D1 of resistance R4, the collector of triode V2 With the anode of energy-storage battery E to be charged.

4. a kind of construction stand-by power supply charging circuit according to claim 3, which is characterized in that three end adjustable substrate The model TL431 of quasi- source P.

5. a kind of construction stand-by power supply charging circuit according to claim 2, which is characterized in that the pi type filter Electric routing capacitance C1, capacitance C2, inductance L1 and inductance L2 compositions.

6. a kind of construction stand-by power supply charging circuit according to claim 3, which is characterized in that diode D1-D6's Model is IN4001.

7. a kind of construction stand-by power supply charging circuit according to claim 3, which is characterized in that the relay K is Normally opened contact relay.