CN201576951U - Charger - Google Patents
Charger Download PDFInfo
- Publication number
- CN201576951U CN201576951U CN2009202804399U CN200920280439U CN201576951U CN 201576951 U CN201576951 U CN 201576951U CN 2009202804399 U CN2009202804399 U CN 2009202804399U CN 200920280439 U CN200920280439 U CN 200920280439U CN 201576951 U CN201576951 U CN 201576951U
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- circuit
- control circuit
- rectification
- charger
- control
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Abstract
The utility model discloses a charger, which comprises a transformer that is electrically connected with an AC power supply, wherein the transformer and a storage battery can form a charging circuit after passing through a rectifying circuit. The charger also comprises a control circuit that is used for controlling the on and off of the charging circuit, wherein the output end of the rectifying circuit is connected with a voltage detecting circuit in parallel; the voltage circuit is used for detecting the voltage of the output end of the rectifying circuit; and the working state of the control circuit is controlled by the voltage detecting circuit. A storage battery comprises a main battery pack and an assistant battery pack; the control circuit comprises a preceding control circuit and a subsequent control circuit, wherein the preceding control circuit is used for controlling the on and off of the main battery pack, the subsequent control circuit is used for controlling the on and off of the assistant battery pack, and the preceding control circuit is used for controlling the electric work of the subsequent control circuit by a commutation circuit. With the adoption of the structure, the charger has reasonable structure, can automatically disconnect the charging circuit after the electricity is full and can realize the automatic switchover charging for the two groups of storage batteries sequentially, thereby being applicable to charging the storage battery of an electric vehicle or an electric automobile, being beneficial for improving the charging efficiency and prolonging the service life of the storage battery.
Description
Technical field
The utility model relates to a kind of charger.
Background technology
Continuous development along with science and technology, the application of Portable DC power consumption equipment is more and more, as mobile phone, digital equipment, laptop computer, and electric motor car etc., these direct-flow electricity utilization apparatus all be with storage battery as power supply, when accumulator electric-quantity is not enough, need charging in time.Present storage battery all is to use charger directly to charge when charging, because conventional charger is simple in structure, with low cost, thereby uses very extensive.The weak point of conventional charger is: once can only charge to a storage battery when one, charging, charge efficiency is lower, promptly enables plurality of groups of storage batteries is charged, and does not also have automatic switching function; Two, after storage battery is filled, there is not function of automatically cutting off, long-time easy to charge storage battery is caused damage.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of rational in infrastructure at above-mentioned deficiency, and can cut off a kind of charger of charging path after being full of automatically.
For solving the problems of the technologies described above, this charger comprises the transformer that is electrically connected with AC power, transformer constitutes charge circuit with storage battery behind rectification circuit, its design feature is: the control circuit that also comprises control charge circuit break-make, rectification circuit output end is parallel with the pressure measurement circuit that detects rectification circuit output end voltage height, and the operating state of control circuit is controlled by the pressure measurement circuit.
The charger of this structure adopts and detects feedback arrangement automatically and realize that storage battery is full of the electricity back and cuts off the charging path automatically.Automatically detect feedback arrangement and comprise pressure measurement circuit and control circuit, the main effect of pressure measurement circuit is the output voltage that detects rectification circuit output end in real time, and will send control circuit to after the voltage signal processing of being surveyed.The main effect of control circuit is the break-make according to the pressure measurement signal control charge circuit of pressure measurement circuit, when the charging beginning, the voltage of rectification circuit output end is consistent with the storage battery both end voltage, magnitude of voltage is lower, be lower than the storage battery rated voltage, pressure measurement this moment circuit is surveyed the rectification circuit output end magnitude of voltage and also is low voltage, when the pressure measurement circuit sends the lower voltage value that records to control circuit, this lower magnitude of voltage is not enough to the trigger control circuit action, therefore, charge circuit keeps connected state.Carrying out along with charging, electric weight increases gradually in the storage battery, battery tension also raises gradually, when accumulator output end voltage reaches rated voltage, pressure measurement voltage that circuit is surveyed just can trigger control circuit move after treatment, at this moment, control circuit cuts off charge circuit, and charging process finishes.This charger can detect charging voltage automatically, is full of the back and in time cuts off charge circuit, has protected battery, has prolonged useful life.
As improvement, described storage battery comprises master battery pack and secondary cell group, control circuit comprise the control circuit formerly of control master battery pack charge circuit break-make and control secondary cell group charge circuit break-make at the back control circuit, formerly control circuit is controlled at the back control circuit by commutation circuit and gets electric work.
Adopt this improvement; can charge successively to two group storage batteries during charging; the charging of two group storage batteries is respectively by the On-line Control circuit with in back control circuit control; the charging order of two group storage batteries is automaticallyed switch by commutation circuit; and be full of the back and cut off charge circuit automatically; both protect storage battery, avoided the personnel operation trouble again.
As a kind of implementation, formerly control circuit comprises main contactor, and the output contact of main contactor is serially connected in the charge circuit of master battery pack, and the operating state of main contactor is controlled by main relay, and the operating state of main relay is by main button control.
As a kind of implementation, control circuit comprises secondary contactor in the back, and the output contact of secondary contactor is serially connected in the charge circuit of secondary cell group, and the operating state of secondary contactor is controlled by secondary relay, and the operating state of secondary relay is by secondary button control.
As a kind of implementation, in the control circuit of back, be provided with the secondary time relay, the normally-closed contact of the secondary time relay is serially connected in the supply access of secondary contactor.
As a kind of implementation, commutation circuit comprises the main time relay, and the normally opened contact of the main time relay is serially connected in the current supply circuit of back control circuit.
As further improvement, the input side of transformer is for being with tapped input coil, the outlet side of transformer is two output windings corresponding with input coil, rectification circuit comprises with two output windings and constitutes left rectification circuit and the right rectification circuit that is electrically connected respectively that the operating state of left rectification circuit and right rectification circuit is by the rectification commutation circuit control that is arranged on rectification circuit output end.
After the improvement, the rectification commutation circuit can be controlled left rectification circuit and the outwards charging simultaneously of right rectification circuit, can realize the large current charge effect like this, also can control left rectification circuit or right rectification circuit respectively, can obtain the low current charge effect so respectively to charge in batteries.
As a kind of implementation, the rectification commutation circuit comprises rectification pressure measurement circuit that detects Output Voltage in Rectified Circuits and the rectifier control circuit of controlling the rectification circuit operating state, and the operating state of rectifier control circuit is controlled by rectification pressure measurement circuit.
Rectification pressure measurement circuit is mainly used to detect the actual voltage value of charge circuit, and rectifier control circuit is determined to adopt large current charge or low current charge according to this magnitude of voltage, helps improving charge efficiency and prolongs the life of storage battery.
In sum, adopt the charger of this structure, rational in infrastructure, and can cut off the charging path automatically after being full of, after the improvement, can be successively to the charging of automaticallying switch of two group storage batteries, being adapted at various battery charge occasions uses, being particluarly suitable for electric motor car or accumulator of electric car when charging uses, and helps improving charge efficiency, prolongs storage battery useful life.
Description of drawings
In conjunction with the accompanying drawings the utility model is described in further details:
Fig. 1 is an electrical schematic diagram of the present utility model.
Among the figure: 1 is control circuit, and 2 for the pressure measurement circuit, and 3 are control circuit formerly, 4 is at the back control circuit, and 5 are the rectification commutation circuit, and SB1 is total button, SB2 is main button, and SB3 is secondary button, and KA3 is a main relay, KA4 is secondary relay, KA6, KA7 is a relay, and KM1 is a main contactor, KM2 is secondary contactor, and KT1 is the main time relay, and KT2 is the secondary time relay, KA-30, KA-40, KA-60, KA-70, KM-10, KM-20, KT-10 is a normally opened contact, KA-31, KA-41, KA-71, KT-11 is a normally-closed contact, and CT is a plug, and FU is a fuse, R1-R9 is a resistance, ST1, ST2 is a triode, and VT3 is a thyristor, and D2 is left rectification circuit, D3 is right rectification circuit, LED1 is a power supply indicator, and LED2 is a charging indicator light, and LED3 is for being full of indicator light, A4 is an ammeter, and C is an electric capacity.
Embodiment
As shown in Figure 1, electrical schematic diagram for this charger, this charger comprises the transformer T2 that is electrically connected with AC power, the input side of transformer T2 is for being with tapped input coil, input coil is connected with alternating current by plug CT, the two ends of transformer T2 input coil are parallel with power supply indicator LED1, and power supply indicator LED1 place branch road is serially connected with resistance R 2, flows through the electric current of power supply indicator LED1 with restriction; The outlet side of transformer T2 is two output windings corresponding with input coil.Transformer T2 constitutes charge circuit with storage battery behind rectification circuit, rectification circuit comprises with two output windings and constitutes left rectification circuit D2 and the right rectification circuit D3 that is electrically connected respectively, constitutes charge circuit with storage battery after the output parallel connection of left rectification circuit D2 and right rectification circuit D3.Rectification circuit output end is parallel with capacitor C, so that rectified waveform is more steady.
Described storage battery comprises master battery pack A and secondary cell group B, the operating state of master battery pack A and secondary cell group B charge circuit is by control circuit 1 control, control circuit 1 comprise the control circuit formerly 3 of control master battery pack A charge circuit break-make and control secondary cell group B charge circuit break-make at back control circuit 4, formerly control circuit 3 by commutation circuit be controlled at back control circuit 4 electric work.
Formerly control circuit 3 comprises main contactor KM1, main contactor KM1 coils from parallel connection of coils is at plug CT two ends, the normally opened contact KM-10 of main contactor KM1 is serially connected in the charge circuit of master battery pack A, main contactor KM1 coil two ends are parallel with main relay KA3, be serially connected with total button SB1 and main button SB2 in the current supply circuit of main contactor KM1 and main relay KA3, main button SB2 two ends are parallel with the normally opened contact KA-30 of main relay KA3, when main button SB2 presses, main relay KA3 gets, the closed self-locking of normally opened contact KA-30, main contactor KM1 gets, normally opened contact KM-10 closure, the charging path of master battery pack A is switched on, and begins master battery pack A is charged.
Rectification circuit output end is parallel with the pressure measurement circuit 2 that detects rectification circuit output end voltage height, pressure measurement circuit 2 comprises resistance R 8 and the resistance R 9 that is cascaded, the serial connection point of R8 and resistance R 9 is electrically connected with control circuit 1, control circuit 1 also comprises the series arm that is made of triode ST2 collector electrode and relay K A6 coil that is connected in parallel on rectification circuit output end, the base stage of triode ST2 is electrically connected with being connected in series a little of resistance R 8 and resistance R 9, the normally opened contact KA-60 of relay K A6 and time relay KT1 constitute series arm, this series arm is connected in parallel on the two ends of main contactor KM1 coil, and the normally-closed contact KT-11 of main time relay KT1 is serially connected in the current supply circuit of main contactor KM1.When master battery pack A was full of, resistance R 8 and resistance R 9 serial connection point voltages raise triode ST2 conducting, relay K A6 gets, normally opened contact KA-60 closure, main time relay KT1 gets electric, delays time master battery pack A to be continued in 1-1.5 hour and fills, continuous charge complete, main time relay KT1 normally-closed contact KT-11 disconnects, main contactor KM1 dead electricity, and normally opened contact KM-10 recovers off-state, master battery pack A charge circuit is cut off, and charging finishes.
Control circuit 4 comprises secondary contactor KM2 in the back, secondary contactor KM2 coil also is connected in parallel on plug CT two ends, the normally opened contact KM-20 of secondary contactor KM2 is serially connected in the charge circuit of master battery pack B, secondary contactor KM2 coil two ends are parallel with secondary relay K A4, be serially connected with total button SB1 and secondary button SB3 in the current supply circuit of secondary contactor KM2 and secondary relay K A4, secondary button SB3 two ends are parallel with the normally opened contact KA-40 of secondary relay K A4, when secondary button SB3 presses, secondary relay K A4 gets, the closed self-locking of normally opened contact KA-40, secondary contactor KM2 gets, normally opened contact KM-20 closure, the charging path of secondary cell group B is switched on, and begins secondary cell group B is charged.
The normally opened contact KA-60 of described relay K A6 also constitutes series arm with secondary time relay KT2, and this series arm is connected in parallel on the two ends of secondary contactor KM2 coil, and the normally-closed contact KT-21 of secondary time relay KT2 is serially connected in the current supply circuit of secondary contactor KM2.When secondary cell group B was full of, resistance R 8 and resistance R 9 serial connection point voltages raise triode ST2 conducting, relay K A6 gets, normally opened contact KA-60 closure, secondary time relay KT2 gets electric, delays time and secondary cell group B is carried out floating charge in 1-1.5 hour, floating charge finishes, secondary time relay KT2 normally-closed contact KT-21 disconnects, secondary contactor KM2 dead electricity, and normally opened contact KM-20 recovers off-state, secondary cell group B charge circuit is cut off, and charging finishes.
After master battery pack A charging is finished, can automatically switch and secondary cell group B be charged, the normally opened contact KT-10 of main time relay KT1 is serially connected in the two ends of secondary button SB3, like this, after master battery pack A charging finishes, the charging path of secondary cell group B promptly is switched on, the charging process of beginning secondary cell group B.
For the ease of the charged state of pilot cell group, be parallel with charging indicator light LED2 at the output of rectification circuit, charging indicator light LED2 place branch road is serially connected with resistance R 3, flows through the electric current of charging indicator light LED2 with restriction; For the ease of the full state of pilot cell group, be parallel with at whole relay K A6 two ends and be full of indicator light LED3, be full of indicator light LED3 place branch road and be serially connected with resistance R 1, flow through the electric current that is full of indicator light LED3 with restriction.
In order to make this charger have the function of large current charge and low current charge, output at rectification circuit is provided with rectification commutation circuit 5, rectification commutation circuit 5 comprises rectification pressure measurement circuit that detects Output Voltage in Rectified Circuits and the rectifier control circuit of controlling the rectification circuit operating state, rectification pressure measurement circuit comprises triode ST1, the base stage of triode ST1 is electrically connected with the rectification circuit output negative pole by resistance R 4, the emitter of triode ST1 is electrically connected with rectification circuit anode by resistance R 6, triode ST1 collector electrode is electrically connected with the rectification circuit output negative pole by resistance R 5, and triode ST1 collector electrode is electrically connected with rectifier control circuit with being connected in series a little of resistance R 5.
Rectifier control circuit comprises thyristor VT3, after connecting with relay K A7 coil, the anode of thyristor VT3 is electrically connected with the rectification circuit output cathode, thyristor VT3 negative electrode is electrically connected with the rectification circuit output negative pole by resistance R 7, the control utmost point of thyristor VT3 is electrically connected with being connected in series a little of resistance R 5 with triode ST1 collector electrode, the normally opened contact KA-70 of relay K A7 and normally-closed contact KA-71 are serially connected in the centre tap end of transformer T2 input coil and an input of input coil respectively, like this, the whole input coil of transformer T2 and two output winding couplings, and the input coil part of centre tap control only is coupled with an output winding, so, what normally opened contact KA-70 controlled is low current charge, and normally-closed contact KA-71 control is large current charge.During charging; continuous rising along with charging voltage; the voltage that triode ST1 collector electrode is connected in series with resistance R 5 a little also raises gradually, when battery pack when being full of, the voltage that triode ST1 collector electrode is connected in series with resistance R 5 a little will trigger thyristor VT3 conducting; relay K A7 gets; normally opened contact KA-70 closure, normally-closed contact KA-71 disconnects, and has so just converted low current charge to by large current charge; handoff procedure is controlled automatically, has protected the useful life of battery.
In order to limit the size of charging current, in the supply line that plug CT connects, be in series with fuse FU, and ammeter A4 is installed in charge circuit, so that detect the size of charging current in real time, very convenient.
Claims (8)
1. charger, comprise the transformer (T2) that is electrically connected with AC power, transformer (T2) constitutes charge circuit with storage battery behind rectification circuit, it is characterized in that: the control circuit (1) that also comprises control charge circuit break-make, rectification circuit output end is parallel with the pressure measurement circuit (2) that detects rectification circuit output end voltage height, and the operating state of control circuit (1) is controlled by pressure measurement circuit (2).
2. charger as claimed in claim 1, it is characterized in that: described storage battery comprises master battery pack (A) and secondary cell group (B), control circuit (1) comprise the control circuit formerly (3) of control master battery pack (A) charge circuit break-make and control secondary cell group (B) charge circuit break-make at back control circuit (4), formerly control circuit (3) is controlled at back control circuit (4) by commutation circuit and gets electric work.
3. charger as claimed in claim 2, it is characterized in that: formerly control circuit (3) comprises main contactor (KM1), the output contact of main contactor (KM1) is serially connected in the charge circuit of master battery pack (A), the operating state of main contactor (KM1) is by main relay (KA3) control, and the operating state of main relay (KA3) is controlled by main button (SB2).
4. charger as claimed in claim 2, it is characterized in that: comprise secondary contactor (KM2) at back control circuit (4), the output contact of secondary contactor (KM2) is serially connected in the charge circuit of secondary cell group (B), the operating state of secondary contactor (KM2) is by secondary relay (KA4) control, and the operating state of secondary relay (KA4) is controlled by secondary button (SB3).
5. charger as claimed in claim 4 is characterized in that: be provided with the secondary time relay (KT2) in back control circuit (4), the normally-closed contact (KT-21) of the secondary time relay (KT2) is serially connected in the supply access of secondary contactor (KM2).
6. charger as claimed in claim 2 is characterized in that: commutation circuit comprises the main time relay (KT1), and the normally opened contact (KT-10) of the main time relay (KT1) is serially connected in the current supply circuit of back control circuit (4).
7. as claim 1,2,3,4,5 or 6 described chargers, it is characterized in that: the input side of transformer (T2) is for being with tapped input coil, the outlet side of transformer (T2) is two output windings corresponding with input coil, rectification circuit comprises with two output windings and constitutes left rectification circuit (D2) and the right rectification circuit (D3) that is electrically connected respectively that the operating state of left rectification circuit (D2) and right rectification circuit (D3) is by rectification commutation circuit (5) control that is arranged on rectification circuit output end.
8. charger as claimed in claim 7, it is characterized in that: rectification commutation circuit (5) comprises rectification pressure measurement circuit that detects Output Voltage in Rectified Circuits and the rectifier control circuit of controlling the rectification circuit operating state, and the operating state of rectifier control circuit is controlled by rectification pressure measurement circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202804399U CN201576951U (en) | 2009-12-04 | 2009-12-04 | Charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202804399U CN201576951U (en) | 2009-12-04 | 2009-12-04 | Charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201576951U true CN201576951U (en) | 2010-09-08 |
Family
ID=42696822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202804399U Expired - Fee Related CN201576951U (en) | 2009-12-04 | 2009-12-04 | Charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201576951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380606A (en) * | 2019-08-21 | 2019-10-25 | 济南瑞森智能科技有限公司 | A kind of power supply unit switching shielding electromagnetic interference using timing |
-
2009
- 2009-12-04 CN CN2009202804399U patent/CN201576951U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380606A (en) * | 2019-08-21 | 2019-10-25 | 济南瑞森智能科技有限公司 | A kind of power supply unit switching shielding electromagnetic interference using timing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20121204 |