CN204391877U - A kind of structure of 6V/12V Electronic Control battery charger - Google Patents
A kind of structure of 6V/12V Electronic Control battery charger Download PDFInfo
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- CN204391877U CN204391877U CN201520067937.0U CN201520067937U CN204391877U CN 204391877 U CN204391877 U CN 204391877U CN 201520067937 U CN201520067937 U CN 201520067937U CN 204391877 U CN204391877 U CN 204391877U
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Abstract
The utility model is the structure about a kind of 6V/12V Electronic Control battery charger, the inside of charger is provided with one piece of circuit board, and the main parts size of charger comprises: charger drain pan, charger enclosing cover, circuit board assemblies, power supply line, two storage battery bottle clip, cable fasteners; Circuit board utilize designed by new-type circuit, can form the product of two types, can carry out automatic charging to storage battery, a class has 6V/12V two kinds of mode of operations, charging current can between 2.5 ~ 10A continuously adjustabe joint charger; Another kind of is have 6V/12V two kinds of mode of operations, charging current is 2.5A or 10A, electric current can not the charger of continuously adjustabe joint, and the utility model charger have employed advanced reverse control technology, and charger has that performance is good, reliability is high, volume is little, lightweight, low cost and other advantages.
Description
Technical field
The utility model relates to the battery charger product that miniature electric controls, specifically a kind of structure of 6V/12V Electronic Control battery charger.
Background technology
Current, the competition in charger product market, not only be embodied in the advance of technology, also be somewhat dependent upon the function of charger, outward appearance and structural design, the advance of manufacturing process, the height of production efficiency, the number of production cost, the aspects such as the consistency of product and reliability.
At present, on domestic and international market, the output voltage of small battery charger has several grades such as 6V/12V/24V usually.Rated current is usually at 1 ~ 50A.The electric current of the large-scale charger of minority can reach the level of hundreds of amperes electric current.When considering low cost, easily producing, the product of the charger product of small area analysis grade (as 4A, 8A, 10A, 20A etc.) normally main flow.On market, much this series products is the structural design adopting traditional transformer rectifier type.This type of charger, due to be adopt transformer be transformed to low-voltage AC, again through the patten's design of over commutation, therefore, the technical merit of product is low, transformer and rectifier heaviness, and caloric value is large, work capacity conversion efficiency is low, and small product size is large, Heavy Weight, high material consumption and the great number of issues such as waste is large.In recent years, the development of electronic technology has also promoted the development of electronic control type battery charger.This kind of New charger, owing to require and the control technology mode that adopts has different significantly from the charger product of traditional transformer rectifier type for satisfied output, therefore, the indexs such as technical performance and energy-conservation, material-saving are better than traditional charger greatly.Advanced technology, makes the transformer of this type of charger greatly reduce.They are not traditional version, but in adopting or the form of high frequency switch power or inverter, its core material etc. making transformer there occurs basic change.Not only the volume of product is little, and weight is very light, carries and transport convenient.Rectifier neither be common the rectifier that forms of diode, but adopt the rectifier of fast recovery diode.The aspects such as generate heat also very little, the energy conversion efficiency of power supply is high, energy-conservation and material-saving are very outstanding.The control of direct current output parameter (voltage and current) adopts the modes such as Switching Power Supply conversion or inversion to solve.Therefore, the charger of switch voltage-stabilizing or inverter is described as " novel high-efficiency and energy-saving power supply ", represents the developing direction of stabilized voltage power supply.Because internal components is operated in HF switch state, therefore the energy level that itself consumes is low.Charger efficiency can reach more than 90%, improves nearly one times than the efficiency of the charger of traditional transformer rectification.Along with the develop rapidly of light source of charger technology, high efficiency switch voltage-stabilizing or inverter charger just towards miniaturization, high frequency, integrated future development, and obtain applying more and more widely.Future is the replacer of traditional charger certainly.
Electronic Control class charger, mainly relies on circuit board and control circuit above thereof to realize the function of product.Compared with the charger of traditional transformer formula, their circuit wants complicated a lot of relatively.Produce and be also mainly fabricated to master with circuit board.Certainly, under identical output voltage and current class, different products, the design of its circuit theory and circuit board, and the mode of production may be all diverse.These all affect the technical performance of product, reliability, production and manufacturing cost, product competitiveness in the market etc.That is, the charger that structure is different with circuit design, its technical parameter, serviceability, production efficiency, even product appearance and reliability and the market competitiveness etc. are that difference is larger.
Charger of the present utility model, the single control board structure of its inner employing.The parts such as the charger control output line of additional casing, power supply line and Band clamp.Production mainly solves processing and the debugging problem of circuit board.The general assembly of product is fairly simple.
Although the kind of the electrical charger adopting switching technique or inversion transformation technique to control is many.But their circuit and internal structure external structure form are also diversified.Different circuit and structural design thinking thereof, the physical circuit form adopted and the mode of whole product and circuit arrangement are different.Moreover, the performance index of charger comprise output current/voltage, the class of insulation, temperature rise, manufacture craft level, product reliability etc. also can show some obvious gaps.Even under identical product parameters performance index, due to the difference of physical circuit and charger construction design aspect thereof, or the packing forms of the electronic devices and components adopted is different, thus the assembling of the components and parts such as circuit board, welding and characterization processes level, automaticity etc. also can be obviously different, and the cost of the convenience of installing when this will make this kind of product circuit plate produce, production efficiency, production cost, product etc. also can remarkable difference.Performance is good, reliability and productivity ratio is high, production cost is low, and product can obviously have the stronger market competitiveness.
Utility model content
The utility model object is to provide a kind of
6V/12V Electronic Control battery charger, the new-type circuit designed by utilization, can form the product of two types, and automatic charging is carried out in accumulation pond, and a class has 6V/12V two kinds of mode of operations, charging current can between 2.5 ~ 10A continuously adjustabe joint charger; Another kind of is have 6V/12V two kinds of mode of operations, and charging current is 2.5A or 10A, electric current can not continuously adjustabe joint charger, not only volume is little, and lightweight, carries very convenient; By the change of charger profile and circuit layout structure design, device model and parameter, utilize the principle of charger circuit described in the utility model also can form the product of other specification, expand the range of application of product, the reasonable in design of circuit and circuit board and complete machine, easy for installation, reliability and production efficiency is high, cost of manufacture is low.The circuit of the utility model charger and complete machine structure design have oneself characteristic.
For achieving the above object by the following technical solutions:
A structure for 6V/12V Electronic Control battery charger, is characterized in that: charger mainly comprises: handle, charger upper cover, aluminium radiator, cooling fan, charger base, charger front panel, circuit board assemblies, power supply line, charger output cable; Charger adopts the internal structure of single circuit board component, circuit board assemblies mainly comprises BR1 rectifier bridge, electric capacity C10 and C11, Q3 and Q4 switching tube, contravariant transformer T1, fast recovery rectifier diode QD1, driving transformer T2, pwm chip IC1, integrated operational amplifier IC2, and resistance, electric capacity, diode, triode, voltage stabilizing didoe, metal-oxide-semiconductor; Wherein BR1 rectifier bridge, electric capacity C10 and C11, Q3 and Q4 switching tube, contravariant transformer T1, fast recovery rectifier diode QD1, and their peripheral components composition semi-bridge inversion main circuit board; Driving transformer T2, pwm chip IC1, integrated operational amplifier IC2, and peripheral components composition control circuit.
Described charger front panel has just at charge status indicating light, full state indicator light, power supply indicator, 6V/12V output selector switch, charging current selector switch or charging current regulator potentiometer and ammeter, above-mentioned parts are connected with circuit board assemblies circuit.
The utility model charger have employed advanced reverse control technology, good circuit and structural design thereof are advantage places of the present utility model, also be the important leverage meeting efficient and low-cost production, high reliability, manufacturing technology advance, charger has that performance is good, reliability is high, volume is little, lightweight, low cost and other advantages.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model main circuit;
Fig. 2 is the schematic diagram of the utility model control circuit;
Fig. 3 is the structural design schematic diagram utilizing the utility model charger;
In the structural representation of Fig. 3 charger, parts inventory is as follows: 1 charger handle; 2 charger upper covers; 3 screws; 4 aluminium radiators; 5 Q3, Q4 switch MOS pipes; 6 inductors; 7 T1 contravariant transformers; 8 block capacitors; 9 C10 and C11 electrolytic capacitor filters; 10 T2 driving transformers; 11 IC2 operational amplifiers; 12 BR1 rectifier bridges; 13 sockets; 14 IC1 pwm chips; 15 Q5 metal-oxide-semiconductors; 16 electrochemical capacitors; 17 screws; 18 cooling fans; The power input cable of 19 band plugs; 20 charger output cables (red clip); 21 charger output cables (black clip); 22 cable fasteners; 23 charger bases; 24 charger front panels; 25 charging current selector switch/charging current regulator potentiometers; 26 power supply indicators; 27 6V/12V output selector switch; 28 full state indicator lights; 29 just at charge status indicating light; 30 export charging current table; 32 QD1 export fast recovery rectifier pipe.
Embodiment
As Figure 1-3, structure and the circuit design features of the utility model charger are: the new-type circuit designed by utilization, the product of two types can be formed, one class has 6V/12V two kinds of mode of operations, charging current can between 2.5 ~ 10A continuously adjustabe joint charger, model name is CD-10M; Another kind of is have 6V/12V two kinds of mode of operations, and charging current is 2.5A or 10A, electric current can not continuously adjustabe joint charger, model name is CD-10A.Charger is of a size of 175 × 200 × 105mm.Weight is respectively 1.3kg and 1.4kg.Charger adopts the internal structure of single circuit plate, and main parts size comprises: handle 1, charger upper cover 2, aluminium radiator 4, cooling fan 18, charger base 23), circuit board assemblies, power supply line 19), the part such as charger output cable (red clip) 20, charger output cable (black clip) 21.Primarily of BR1 rectifier bridge, electric capacity C10 and C11, Q3 and Q4 switching tube, contravariant transformer T1, fast recovery rectifier diode QD1, driving transformer T2, pwm chip IC1(TL494 on circuit board assemblies), integrated operational amplifier IC2, and the composition such as a lot of resistance, electric capacity, diode, triode, voltage stabilizing didoe, metal-oxide-semiconductor; Its core is: 1) BR1 rectifier bridge, electric capacity C10 and C11, Q3 and Q4 switching tube, contravariant transformer T1, fast recovery rectifier diode QD1(32), and the semi-bridge inversion main circuit board of their peripheral components composition; 2) by driving transformer T2, TL494PWM control chip IC1, IC2 integrated operational amplifier, and their peripheral components is also had, as the control circuit that resistance, electric capacity, diode, triode, voltage stabilizing didoe, metal-oxide-semiconductor etc. form; The front panel of CD-10A has red(redness) just in charged state LED light, green (green) full state LED light, white(white) power indication LED, also have 6V/12V output selector switch; Charging current is the selector switch of 2.5A or 10A; Ammeter 30; On the front panel of CD-10M, except exporting a charging current regulative mode, change into outside potentiometer regulates continuously by selector switch, other the same with CD-10A.
The circuit board that power supply line 19 is charger provides externally fed power supply, and circuit supply power supply is 220 or 230V, 50Hz or 60Hz, from the input of L, N end.The output of charger is " VOUT+ " and " VOUT-", and two storage battery bottle clip that are red with corresponding, black are connected respectively.Corresponding circuit connection is carried out between circuit board assemblies, power supply line 19, two charger output cables (storage battery bottle clip) 20 and 21, ammeter, each indicator light etc.Two charger output cables (storage battery bottle clip) 20 and 21 are divided into redness and black.During charging, redness represents "+or just " polarity that charger exports, and is connected with "+or just " polar terminals of storage battery; Black represents "-or negative " polarity that charger exports, and is connected with "-or negative " polar terminals of storage battery.
As accompanying drawing 1,2, the operation principle of the utility model charger is summarized as follows: after energising, the AC power 220 ~ 230VAC come from electrical network and electric current, first through being input to the rectifier bridge that BR1 forms by L and N terminal.Direct current is become after rectification.Again through the filtering of electrochemical capacitor C10, C11, become comparatively stable+310V direct current.Supply is by switching tube Q3 and Q4, capacitance C8, contravariant transformer T1, fast recovery diode QD1, the main circuit that Q5 and Q6 and peripheral components (containing Z1, R0, R16, R15 etc.) thereof form, and the control circuit some work that IC1, IC2, driving transformer T2 and peripheral components (containing three LED, R1, Q1, Q2, D4 etc.) thereof form.
Under the effect of control circuit, the output current of charger and voltage are the half-bridge inversion circuits by the composition such as electrochemical capacitor C10, C11, switching tube Q3 and Q4, transformer T1, fast recovery diode QD1, transfer energy to circuit output end.The DC high-voltage at C10, C11 two ends, through inversion control, at (tens kHz) medium frequency alternating current paying limit winding acquisition low pressure of T1, again through the rectification of fast recovery diode QD1, the filtering of inductance L 1 and C4 electric capacity, be changed to low-voltage DC, the direct voltage that numerical value is different and electric current are for accumulator load.The storage battery of 6V, 12V, its voltage is lower.And above-mentioned inverter circuit exports, just in time there is the feature of low-voltage, high-current, therefore be suitable for the output as charger.Switching tube Q3 and Q4 is alternate conduction, is to adopt the pulse duration of determining frequency, regulating it to drive during its work, thus the voltage and current of change output.In addition, output voltage and electric current adopt the negative feedback control of target given (given containing voltage and current) and output voltage and electric current to realize stability contorting.R0 is the resistance of output current sampling, is also shunt.Can be negative feedback voltage the size conversion of output current, deliver to the control circuit of the compositions such as IC1 through B point.Through A point, the output voltage of main circuit can be detected, obtain the negative feedback control signal of output voltage.
In the utility model circuit, IC1(TL494) be the PWM(pulse width modulation of a high integration, low-power consumption) control chip.16 pin.14 pin REF are reference voltage+5V terminal.There are two operational amplifiers inside, respectively corresponding 1IN+, 1IN-input; 2IN+, 2IN-input.The output (namely 3 pin of chip export) of two operational amplifiers, decides the width size of the driving pulse of inverse switch pipe.This chip be by 6 pin, 5 pin respectively outer meeting resistance R19 and electric capacity C5 decide the operating frequency of switching tube Q3 and Q4.8 pin (C1), 11 pin (C2) export two row square wave driving pulses.Interval time between two row driving pulses, namely Dead Time is determined by the parameter of 4 pin (DTC) external device.Determined by rational parameter, enough suitable Dead Time can be obtained, to ensure the normal alternate conduction work of switching tube Q3 and Q4.If Dead Time is too short, easily cause switching tube Q3 and Q4 to occur " leading directly to " or the phenomenon of conducting simultaneously, this will cause inversion control failure, cause switching tube Q3 and Q4 bombing.Circuit cannot normally work.
IC1(TL494) square-wave signal that alternately exports of 8 pin (C1) of chip, 11 pin (C2), through the circuit that Q1 and Q2 and peripheral components thereof form, again by driving transformer T2 and drive circuit thereof, the work of control switch pipe Q3 and Q4, the pwm pulse width that switching tube Q3 and Q4 determines according to circuit such as the operating frequency set and IC1 can be made, the output realizing inversion controls, thus obtains different output voltages and size of current.
J6 switch is that 6V, 12V export the selector switch controlled, and is arranged on the front panel of charger.User according to the voltage type preparing the storage battery charged, can select 6V or 12V charging voltage.The main circuit output voltage that A point detects, the i.e. negative feedback control signal of output voltage, through resistance R1, R4, R7 and R8, R25 form bleeder circuit, be connected to IC1(TL494) 1IN+ input.Setting signal then by R3, R7 dividing potential drop, is input to 1IN-input.By J6 switch, the voltage ratio of bleeder circuit can be changed.Due to this different voltage ratios, control 1IN+ input voltage can be changed, regulate the width of pwm pulse, thus realize controlling the output of charger 6V or 12V.
Current adjustment potentiometer VR1-J7 can change the output charging current of charger.From the detection negative-feedback signal of output loop shunt R0, be then input to B point.Both difference synthesis control signals are input to IC1(TL494) the 2IN-input of chip.Finally can determine pwm pulse width, thus realize the control to output current of charger.Change the Setting signal size of Current adjustment potentiometer, output current size can be changed.
Adopt Current adjustment potentiometer, the continuous Drazin inverse of output current of charger can be realized.Here it is CD-10M type charger, it has 6V/12V two kinds of mode of operations, charging current can between 2.5 ~ 10A continuously adjustabe joint.If Current adjustment potentiometer to be changed into the mode of switch series resistance, by switch closed, disconnect, change different given value of current values, Here it is CD-10A type charger.It has 6V/12V two kinds of mode of operations equally, and charging current is 2.5A or 10A, and its electric current can not continuously adjustabe joint.
The circuit of IC2 operational amplifier part, mainly two voltage comparators.The voltage of R43 input, or the 5 pin voltages of IC2B are by the reference voltage REF(+5V of IC1) determine.Under 6V voltage output mode, along with the carrying out of charging process, the voltage at storage battery storage battery two ends can raise gradually.When exporting charging voltage and being less than 7V, the circuit of the utility model charger can realize the constant current charge under setting electric current.Meanwhile, red R ED " just fills " indicator light LED and lights.Show that accumulator positive is charging.When exporting charging voltage and being greater than 7.3V, the charged electrical of the utility model charger fails to be convened for lack of a quorum reduction.When electric current be reduced to be less than 1.2A time, the 1 pin voltage step-down of IC2A, can make the 7 pin voltage output HIGH voltages of IC2B, make " being full of " LED light simultaneously.Show that charge in batteries is in full state.Under 12V voltage output mode, along with the carrying out of charging process, the voltage at storage battery storage battery two ends can raise gradually.When exporting charging voltage and being less than 13V, the circuit of the utility model charger can realize the constant current charge under setting electric current.Meanwhile, red R ED " just fills " indicator light LED and lights.Show that 6V accumulator positive is charging.When exporting charging voltage and being greater than 14.6V, the charged electrical of the utility model charger fails to be convened for lack of a quorum reduction.When electric current be reduced to be less than 1.2A time, the 1 pin voltage step-down of IC2A, can make the 7 pin voltage output HIGH voltages of IC2B, make " being full of " LED light simultaneously.Show that 12V charge in batteries is in full state.
The output polarity that switching tube Q5, triode Q6, resistance R12 ~ R15, Z1, D1 etc. form charger connects revertive control circuit.When charger circuit normally works, when charger export two clip lines be connected correct with the polarity of storage battery storage battery time, triode Q6 conducting, switching tube Q5 conducting, can charge to storage battery.Otherwise really or connect inverse time, triode Q6 only carries the polarity malunion exporting two clip lines and storage battery storage battery when charger, and switching tube Q5 also can not conducting.Now, charger can not charge to storage battery storage battery.
The medium frequency inverter conversion that have employed tens kHz due to the utility model controls, and thus exports with traditional transformer rectifier type compared with the charger controlled, significantly can reduce size and the weight of transformer, realizes material-saving, the object such as energy-conservation.
In sum, the output voltage of charger and size of current are all by control circui.These control to be the important prerequisite ensureing charger steady operation.
Visible, good circuit and structural design thereof are advantage places of the present utility model, are also to meet efficient, high reliability, manufacturing technology advance important leverage.The content of the utility model patent application protection is just circuit and the structural design of protecting this charger.
Above content is the detailed description done the utility model in conjunction with concrete charger construction and circuit board and controlling functions, can not assert that concrete enforcement of the present utility model is only limited to these explanations.Concerning the others skilled in the art of technical field described in the utility model, without departing from the inventive concept of the premise, can also make some simple deductions and replacement, these all should be considered as the category belonging to the utility model protection.
Claims (2)
1. a structure for 6V/12V Electronic Control battery charger, is characterized in that: charger mainly comprises: handle (1), charger upper cover (2), aluminium radiator (4), cooling fan (18), charger base (23), charger front panel (24), circuit board assemblies, power supply line (19), charger output cable (20,21); Charger adopts the internal structure of single circuit board component, circuit board assemblies mainly comprises BR1 rectifier bridge, electric capacity C10 and C11, Q3 and Q4 switching tube, contravariant transformer T1, fast recovery rectifier diode QD1, driving transformer T2, pwm chip IC1, integrated operational amplifier IC2, and resistance, electric capacity, diode, triode, voltage stabilizing didoe, metal-oxide-semiconductor; Wherein BR1 rectifier bridge, electric capacity C10 and C11, Q3 and Q4 switching tube, contravariant transformer T1, fast recovery rectifier diode QD1, and their peripheral components composition semi-bridge inversion main circuit board; Driving transformer T2, pwm chip IC1, integrated operational amplifier IC2, and peripheral components composition control circuit.
2. the structure of a kind of 6V/12V Electronic Control battery charger as claimed in claim 1, it is characterized in that: described charger front panel (24) has just at charge status indicating light (29), full state indicator light (28), power supply indicator (26), 6V/12V output selector switch (27), charging current selector switch or charging current regulator potentiometer (25) and ammeter (30), above-mentioned parts are connected with circuit board assemblies circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520067937.0U CN204391877U (en) | 2015-02-01 | 2015-02-01 | A kind of structure of 6V/12V Electronic Control battery charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520067937.0U CN204391877U (en) | 2015-02-01 | 2015-02-01 | A kind of structure of 6V/12V Electronic Control battery charger |
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| Publication Number | Publication Date |
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| CN204391877U true CN204391877U (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520067937.0U Expired - Fee Related CN204391877U (en) | 2015-02-01 | 2015-02-01 | A kind of structure of 6V/12V Electronic Control battery charger |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449768A (en) * | 2015-12-22 | 2016-03-30 | 浙江肯得机电股份有限公司 | SCR and microprocessor controlled storage battery charger |
| CN105471031A (en) * | 2015-12-22 | 2016-04-06 | 浙江肯得机电股份有限公司 | 12 V/24 V 40 A inverting-controlled storage battery charger |
-
2015
- 2015-02-01 CN CN201520067937.0U patent/CN204391877U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449768A (en) * | 2015-12-22 | 2016-03-30 | 浙江肯得机电股份有限公司 | SCR and microprocessor controlled storage battery charger |
| CN105471031A (en) * | 2015-12-22 | 2016-04-06 | 浙江肯得机电股份有限公司 | 12 V/24 V 40 A inverting-controlled storage battery charger |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20220201 |
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| CF01 | Termination of patent right due to non-payment of annual fee |