CN203537031U - Structure of transformer rectification-type charger containing electronic control circuit - Google Patents
Structure of transformer rectification-type charger containing electronic control circuit Download PDFInfo
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- CN203537031U CN203537031U CN201320710437.5U CN201320710437U CN203537031U CN 203537031 U CN203537031 U CN 203537031U CN 201320710437 U CN201320710437 U CN 201320710437U CN 203537031 U CN203537031 U CN 203537031U
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- charger
- transformer
- circuit board
- plastics
- electronic control
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- 229920003023 plastic Polymers 0.000 claims abstract description 30
- 239000004033 plastic Substances 0.000 claims abstract description 30
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- 238000000429 assembly Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 23
- 238000013461 design Methods 0.000 abstract description 11
- 238000009434 installation Methods 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 abstract 3
- 238000005516 engineering process Methods 0.000 description 10
- 238000003860 storage Methods 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000872198 Serjania polyphylla Species 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
The utility model relates to a structure of a transformer rectification-type charger containing an electronic control circuit. The charger adopts such a structure that a transformer, a charger housing, a power supply wire and charging clamp connecting wire are arranged outside a single circuit board. The charger housing comprises a plastic front housing, a plastic rear housing and a rear housing cover plate. A heat dissipation opening is formed in the position, corresponding to a circuit board assembly, of the plastic rear housing. The heat dissipation opening is just capable of accommodating heat dissipation fins of the circuit board. The transformer is fixed on a bottom housing of the plastic front housing. A wiring opening is formed in the position, corresponding to a lower panel, of the plastic rear housing. The wiring opening can be sealed by the rear housing cover plate. The structure of the transformer rectification-type charger containing the electronic control circuit has the advantages of reasonable structural design, convenient installation, high production efficiency, low error rate and low manufacturing cost.
Description
Technical field
The utility model relates to a kind of small battery charger product, specifically a kind of structure of the transformer rectifying type charging device containing electronic control circuit.
Technical background
Current, the competition in charger product market, not only be embodied in the advance of technology, function, outward appearance and the structural design, the advance of manufacturing process, the number of the height of production efficiency, production cost that also depend on to a great extent charger, 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 conventionally, rated current is conventionally at 1 ~ 50A, the electric current of the large-scale charger of minority can reach the level of up to a hundred amperes, considering low cost, in the situation of easily producing, little current class is (as 4A, 8A, 10A etc.) charger product is the product of main flow normally, on market, a lot of charger products are the structural designs that adopt transformer-rectifier formula, this type of charger is to adopt line voltage to be transformed to low-voltage AC through low frequency (50Hz or 60Hz) transformer, through modes such as over commutation controls, realize again, therefore, product manufacturing technology is relative with maintenance process simple, cost is low.
Over closer year, the development of Switching Power Supply and reverse control technology has also promoted the development of electronic control type battery charger, this class charger, owing to requiring the control technology mode adopting to have different significantly from the charger product of transformer-rectifier formula for meeting output, therefore, control technology and the index such as energy-conservation are better than traditional charger, advanced technology, the transformer of this type of charger is greatly reduced, it not the form of common transformer, but in adopting or the transformer of high frequency switch power or inverter, certainly, rectifier neither be common the rectifier that forms of diode, but the rectifier of employing fast recovery diode, the control of VD and electric current is to adopt the modes such as DC-DC conversion or inversion to solve, because internal electron switch is at HF switch state, therefore the energy level that device consumes is low, generate heat also very little, the energy conversion efficiency of power supply is high, charger efficiency can reach more than 90%, than the efficiency of the charger of traditional transformer rectification, improve nearly one times, in addition, the volume of product is not only little, and lightweight, more conveniently carry and transport, the aspects such as energy-conservation and material-saving are also very outstanding, therefore, the charger of switch voltage-stabilizing or inverter is described as " novel high-efficiency and energy-saving power supply ", representing the developing direction of light source of charger, however, this class charger is still faced with some questions of market, as high in selling price, technology and circuit are complicated, maintenance needs good technical support etc.
Compare with Switching Power Supply or inverter charger, although the charger technology of transformer-rectifier formula is relatively backward, but due to impacts such as manufacturing technology are relative with maintenance process simply, selling price is low, the latter remains the main product in current charger market.
The kind of charger 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 adopting and the mode of whole product and circuit arrangement are different, 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 technical performance, reliability, production and manufacturing cost, the product competitiveness in the market etc. of product, that is to say, 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, even under identical product parameters performance index, difference due to physical circuit and structural design aspect thereof, or the packing forms of the electronic devices and components that adopt is different, thereby the assembling of the components and parts such as circuit board, welding and characterization processes level, automated production degree etc. also can be obviously different, the convenience of installing when this all can make product circuit plate produce, production efficiency, production cost, the costs of product etc. also can be significantly different, for example, adopt the charger of a large amount of plug-in unit devices and surface-mounted device, because these devices of welding equipment adopt advanced person conventionally, efficiently, the equipment that is suitable for automated production in enormous quantities and detection, so, can greatly improve the production efficiency of circuit board or product, reduce production costs, increase the competitiveness of product in market, how to promote the appearance design of transformer-rectifier formula charger, control technology and manufacture level, remain one of problem of a lot of enterprises pay attention.
Utility model content
The purpose of this utility model is to provide a kind of structure of the transformer rectifying type charging device containing electronic control circuit
,its inner single circuit plate structure that adopts, the parts such as the charger control output line of additional cabinet, power supply line and Band clamp, the control circuit board of charger adopts double sided board in order to dwindle area, component side and solder side are all designed with a lot of plug-in types, SMD electronic devices and components, adopt automatic chip mounting and plug-in unit processing method to produce, the reasonable in design of circuit board and complete machine, easy for installation, therefore production efficiency is high, error rate is low, cost of manufacture is low.
For achieving the above object by the following technical solutions:
A kind of structure of the transformer rectifying type charging device containing electronic control circuit
, it is characterized in that:charger adopts the additional transformer of single circuit plate (13) (11) and charger case, power supply line (7) and charging clip connecting line (8, 9) structure, charger case comprises plastics front casing (14), plastics rear casing (6) and rear casing cover plate (4), on the position of circuit board assemblies (13) corresponding to described plastics rear casing (6), open thermovent, thermovent just can accommodating circuit board (13) fin, transformer (11) is fixed on the drain pan of plastics front casing (14), the position of plastics front casing (14) corresponding circuits plate is provided with top panel, the lower panel of plastics front casing (14) is provided with electric current display list (15), trickle charge/fill soon change over switch (17), LED light (16) and capacity indicator light (18), position at the described corresponding lower panel of plastics rear casing (6) is provided with connection jaws, connection jaws place can be sealed by rear casing cover plate (4).
Described circuit board is double sided board, at the component side of circuit board and solder side, is all designed with a lot of plug-in types, SMD electronic devices and components.
the utility modelcircuit board adopts single-layer double-side plate, at the component side of circuit board and solder side, be all designed with a lot of plug-in types, SMD electronic devices and components, the compact conformation of circuit board, except the large components and parts of a small amount of size need hand assembled and welding, other electronic devices and components all adopt high efficiency automatic placement machine and inserter to come the high-efficient automatic of completing circuit plate electronic devices and components to produce, circuit board highly efficient in productivity, error rate is low, make quality all higher, cost cost performance and first-time qualification rate low, that finally can make product is very high; The utility model carries out well-designed to charger case simultaneously, adopt plastics front casing, plastics rear casing and rear casing cover plate, on plastics rear casing, be provided with connection jaws, and the rear casing cover plate of sealing connection jaws, this design is convenient to assemble wiring, can raising efficiency.
Accompanying drawing explanation
figure1 is decomposition texture schematic diagram of the present utility model;
Fig. 2 is the circuit theory diagrams () of the utility model charger;
Fig. 3 is the circuit theory diagrams (two) of the utility model charger;
Fig. 4 is the circuit theory diagrams (three) of the utility model charger.
Embodiment
As shown in Figure 1, a kind of structure of the transformer rectifying type charging device containing electronic control circuit
,charger adopts single circuit plate 1 additional transformer 2 and charger case, the structure of power supply line 3 and charging clip connecting line 4, charger case comprises plastics front casing 5, plastics rear casing 6 and rear casing cover plate 7, on the position of the circuit board assemblies 1 of described plastics rear casing 6 correspondences, open thermovent 61, thermovent 61 just can accommodating circuit board 1 fin, transformer 2 is fixed on the drain pan 53 of plastics front casing 5, the position of plastics front casing 5 corresponding circuits plates is provided with top panel 51, the lower panel 52 of plastics front casing 14 is provided with electric current display list 8, trickle charge/fill soon change over switch 9, LED light 10 and LED capacity indicator light 11, position at described plastics rear casing 6 corresponding lower panels is provided with connection jaws 62, connection jaws 62 places can be by 7 sealings of rear casing cover plate, described circuit board is double sided board, at the component side of circuit board and solder side, is all designed with a lot of plug-in types, SMD electronic devices and components.
On described plastics front casing, be provided with following panel device: LED light 10 comprises that battery connects anti-LED light, light source of charger LED light, trickle charge LED light and fills soon LED light; Trickle charge/fill soon change over switch 9, electric current display list 8, and 25%, 50%, 75%, 100% 4 capacity LED light of charging battery jar (11), arrangement mode: battery connects anti-LED light, light source of charger LED light, trickle charge LED light, fill LED light soon arranges downwards successively: 25%, 50%, 75%, 100% 4 capacity LED light of charging battery jar is arranged downwards successively.Centre on front casing panel, output current display list 8 is arranged in top; Arranged beneath trickle charge/fill soon change over switch 9.
The circuit board that power supply line 3 is charger provides externally fed power supply, and two storage battery bottle clip are divided into redness and black.During charging, redness represents "+or just " polarity of charger output, is connected with "+or just " polarity terminal of storage battery; Black represents charger output " or negative " polarity, is connected with " or negative " polarity terminal of storage battery.If charger clip do not note the polarity of folder and done instead, " battery connects anti-LED light and can light " of front panel upper left side top.
The main circuit of the utility model charger will be by " filling soon/trickle charge " change over switch K, transformer B, rectifier ZL1, power supply indication LED 3 lamps, " fill soon " state LED1 indicator light, " trickle charge " state LED2 indicator light, " connect instead " LED4 indicator light, current detecting shunt RI, pressurizer LM7805, operational amplifier LM324, and a lot of resistance, electric capacity, diode, triode, metal-oxide-semiconductor (as M1 etc.), the compositions such as protective tube F1, power supply can be AC 220 ~ 230V, 50Hz or 60Hz, output is " OUT+ " and " OUT-", be connected with two sub-output lines of storage battery bottle clip of black with corresponding redness respectively.
The operation principle of the utility model charger is summarized as follows: after energising, charger is connected electric network source 220 ~ 230VAC.Power supply indication LED 3 lamps are lighted, indicate the charged work of corresponding control circuit, the alternating current coming from electrical network is through transformer B step-down, after rectifier bridge ZL1 rectification on circuit board, become direct current, pass through again the filtering of electrochemical capacitor C7, become comparatively galvanic current, for accumulators, charge, charger is provided with " filling soon/trickle charge " function, its implementation is to adopt " filling soon/trickle charge " change over switch K to carry out conversion and control, and there is corresponding LED1 " to fill soon " and the indication of LED2 " trickle charge " status lamp, the signal that current detecting shunt RI gathers is supplied with ammeter and is carried out the demonstration of charging current, this charger is provided with protective tube F1, excessive electric current can make its fusing, to realize the restriction to output current, prevent from burning out the device of charger, if the polarity connected mode of charging clip and storage battery is correct, triode Q2 conducting, metal-oxide-semiconductor M1 conducting, can make charging current flow through metal-oxide-semiconductor, otherwise, if the polarity people of charging clip and storage battery is for having connect instead, metal-oxide-semiconductor M1 cut-off, do not have electric current to flow through metal-oxide-semiconductor, cannot charge, simultaneously, " connecing instead " LED4 indicator light lights, prompting end user corrects the connection of charging clamp, to correctly use the utility model charger.
LM7805 is integrated regulator, it and peripheral device form voltage stabilizing circuit, produce+work of 5V voltage supply operational amplifier LM324 circuit part, operational amplifier LM324 circuit part, utilize three voltage comparator circuits of three operational amplifiers compositions of LM324 inside to carry out work, comparative voltage is input to the inverting input (-) of operational amplifier, comparative voltage adopts R14, R15 resistor voltage divider circuit is set, because its power supply is stable+5V, so, comparative voltage is also determined, voltage when charger output or charge in batteries is input to the in-phase input end (+) of operational amplifier after the samplings such as R10, this different voltage can make corresponding voltage comparator circuit upset, can make accordingly LED6, LED7, LED8 lights, with indication charge in batteries to what (50%, 75%, 100%) state of degree, 25% state employing+5V realizes, do not adopt mode relatively to control, good circuit and structural design thereof are the advantage places of the utility model charger, also be the important leverage that meets efficient and low-cost production.
The utility model has not only adopted advanced manufacturing process to produce circuit board, and charger also have rational in infrastructure, volume is little, lightweight, cost is low, production efficiency advantages of higher.
Claims (2)
1. the structure containing the transformer rectifying type charging device of electronic control circuit
, it is characterized in that:charger adopts the additional transformer of single circuit plate (1) (2) and charger case, the structure of power supply line (3) and charging clip connecting line (4), charger case comprises plastics front casing (5), plastics rear casing (6) and rear casing cover plate (7), on the position of circuit board assemblies (1) corresponding to described plastics rear casing (6), open thermovent (61), thermovent (61) just can accommodating circuit board (1) fin, transformer (2) is fixed on the drain pan (53) of plastics front casing (5), the position of plastics front casing (5) corresponding circuits plate is provided with top panel (51), the lower panel (52) of plastics front casing (14) is provided with electric current display list (8), trickle charge/fill soon change over switch (9), LED light (10) and capacity indicator light (11), position at the described corresponding lower panel of plastics rear casing (6) is provided with connection jaws (62), connection jaws (62) is located to be sealed by rear casing cover plate (7).
2. the structure of a kind of transformer rectifying type charging device containing electronic control circuit as claimed in claim 1, it is characterized in that: described circuit board is double sided board, at the component side of circuit board and solder side, be all designed with a lot of plug-in types, SMD electronic devices and components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320710437.5U CN203537031U (en) | 2013-11-12 | 2013-11-12 | Structure of transformer rectification-type charger containing electronic control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320710437.5U CN203537031U (en) | 2013-11-12 | 2013-11-12 | Structure of transformer rectification-type charger containing electronic control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN203537031U true CN203537031U (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320710437.5U Expired - Lifetime CN203537031U (en) | 2013-11-12 | 2013-11-12 | Structure of transformer rectification-type charger containing electronic control circuit |
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| Country | Link |
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| CN (1) | CN203537031U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2013
- 2013-11-12 CN CN201320710437.5U patent/CN203537031U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |