CN208423824U - A kind of charger of automatic identification accumulator polarity - Google Patents
A kind of charger of automatic identification accumulator polarity Download PDFInfo
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- CN208423824U CN208423824U CN201820618438.XU CN201820618438U CN208423824U CN 208423824 U CN208423824 U CN 208423824U CN 201820618438 U CN201820618438 U CN 201820618438U CN 208423824 U CN208423824 U CN 208423824U
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Abstract
The utility model belongs to service technique field, and in particular to a kind of charger of automatic identification accumulator polarity.In order to solve before charging a battery; need to be measured the polarity of battery and charger with multimeter; pen meter of universal meter error makes polarity judge incorrectly; to cause charger or battery badly damaged in charging; the utility model discloses a kind of charger of automatic identification accumulator polarity; including charging circuit, current foldback circuit, overvoltage crowbar, accumulator polarity indicating circuit circuit and accumulator polarity identification circuit, the charging circuit and current foldback circuit, overvoltage crowbar, polarity instruction circuit, accumulator polarity circuit are parallel relationships.Above-mentioned technical proposal can be judged and be charged solve the problems, such as the measuring error occurred in battery charging process, measurement intricate operation to the polarity of battery.
Description
Technical field
The utility model relates to nuclear power service technique fields, and in particular to a kind of charging of automatic identification accumulator polarity
Device.
Background technique
During nuclear power repair and maintenance direct current system, many spare part batteries will be filled before entering battery workshop
Electric experiment, charger are the necessary conditions for completing this work, and used charger is unable to automatic identification battery at present
Polarity.
At present when carrying out charge test to battery, following preparation is needed: 1, first being verified with multimeter to be charged
Accumulator terminal polarity, and mark, if the case where pen meter of universal meter misplugs when this step easilys lead to store
Battery polar distinguishes mistake；2, charger output terminal polarity is determined with multimeter；3, battery cathode terminal is passed through into cable
It is connected to charger negative terminal, then accumulator positive polarity terminal is passed through into cable connection to charger positive terminal；4,
Starting charger charges to battery, and charging midway needs to monitor charging current and voltage.If the 1st, 2,3 step any of them
One step, which goes wrong, will lead to accumulator polarity and charger polarity is inconsistent, seriously damage so as to cause charger or battery
Bad, step 4 needs staff constantly to measure electric current and voltage.Whole process has many places risk to be likely to result in industry occur
Safety accident.
In view of the above-mentioned problems, currently no effective solution has been proposed.
Utility model content
For the defects in the prior art, the utility model discloses a kind of charger of automatic identification accumulator polarity,
Polarity discriminating and charging can be carried out to battery, solve and occur cumbersome test in battery charging process with multitester probe
Cause charger or battery in charging badly damaged with polarity misjudgment.
A kind of charger of automatic identification accumulator polarity including cabinet and is located in the box body the charging circuit in portion, electric power storage
Pond polarity instruction circuit and accumulator polarity identification circuit, charging circuit and accumulator polarity indicating circuit and accumulator polarity electricity
Road is parallel relationship.
Further, above-mentioned box house further includes current foldback circuit and overvoltage crowbar, current foldback circuit and
Overvoltage crowbar and charging circuit are parallel relationships.
Further, charging circuit includes: air switch, fuse, transformer, rectifier bridge and filter capacitor；Wherein, institute
The input terminal for stating air switch, fuse and transformer is connected in input voltage circuit, the output end and rectifier bridge of transformer
Input terminal connection, filter capacitor is connected in parallel between two output ends of rectifier bridge, and the output end of rectifier bridge is charging circuit
Output end.
Further, charging circuit further include:
First current-limiting resistance and the first light emitting diode, and the first current-limiting resistance and the first light emitting diode are in series
Entirety and filter capacitor be parallel relationship.
Further, current foldback circuit includes: the first shunt resistance, the first potentiometer, the first photoelectrical coupler, second
Current-limiting resistance, third current-limiting resistance, the 4th current-limiting resistance, the first triode, the coil of the first relay, the 5th light-emitting diodes
Pipe, ammeter and first capacitor；
The first pin and the first potentiometer of first photoelectrical coupler are connected to one end of the first shunt resistance, the first photoelectricity
The second pin of coupler is connect with the other end of the first shunt resistance, and the first potentiometer is connect with the first shunt resistance, and first
The base stage of triode is connected between third current-limiting resistance and first capacitor, the collector of the first triode and the first relay
Coil is connected to the first shunt resistance, and the emitter of the first triode is connected to first capacitor, the first photoelectrical coupler
4th pin and third current-limiting resistance are connected serially to the first potentiometer, the 4th current-limiting resistance, the 5th light emitting diode and the first relay
The normally opened contact of device is connected in series, and ammeter is connect with the first shunt resistance.
Further, overvoltage crowbar includes: the second potentiometer, the second photoelectrical coupler, the 5th current-limiting resistance, the 6th
Current-limiting resistance, the second triode, the coil of the second relay, the 6th light emitting diode and voltmeter；
Wherein, the first pin of second photoelectrical coupler and the second potentiometer are connected to the of the second photoelectrical coupler
The second pin of four pins, second photoelectrical coupler is connected to the emitter of the first triode, the second photoelectrical coupler
The coil of the 5th current-limiting resistance of series connection, the second light emitting diode and the second relay, described between third pin and the 4th pin
The normally opened contact of 6th current-limiting resistance, the 6th light emitting diode and the second relay is connected in series, the voltmeter and charging electricity
Road is connected in parallel.
Further, in above-mentioned technical proposal, accumulator polarity indicating circuit includes: the 7th current-limiting resistance, the 8th current limliting
The normally opened touching of resistance, the 7th light emitting diode, the 8th light emitting diode, the normally opened contact of third relay and the 4th relay
Point, the normally opened contact of the 7th current-limiting resistance, the 7th light emitting diode and third relay are connected in series, the 8th current-limiting resistance, the
The normally opened contact of eight light emitting diodes and the 4th relay be connected in series, and the 7th current-limiting resistance, the 7th light emitting diode and
The entirety that the normally opened contact of third relay is connected in series and the 8th current-limiting resistance, the 8th light emitting diode and the 4th relay
The entirety that normally opened contact is connected in series is connected in parallel.
Further, in above-mentioned technical proposal, accumulator polarity identification circuit includes: third light emitting diode, the 4th hair
Optical diode, the coil of third relay, normally opened contact and normally-closed contact, the coil of the 4th relay, normally opened contact and normally closed
Contact, normally closed type reset button, first lead-out terminal, second output terminal；
The normally closed touching of first lead-out terminal and normally closed type reset button, the normally-closed contact of the first relay, the second relay
Point, the 4th light emitting diode, the coil of the 4th relay and the normally-closed contact of third relay are connected to second output terminal
Son；It is defeated that second is connected in parallel on after the normally-closed contact of 4th relay, the coil of third relay and the series connection of third light emitting diode
Out between terminal B and the anode of the 4th light emitting diode D4, first lead-out terminal and second output terminal son between there are also third after
The normally opened contact of the normally opened contact of electric appliance and the 4th relay.
It is using the advantages of the technical solution of the utility model:
On the one hand: by the charger of the automatic identification accumulator polarity of the utility model, user is in operation
It realizes and polarity discrimination is carried out to battery and charger without using multimeter, it is only necessary in the battery indicating circuit of charger
In the case that 7th light emitting diode and the 8th light emitting diode are not lit, battery is directly accessed to the electric power storage of charger
First lead-out terminal and second output terminal of pond polarity identification circuit, carry out polarity judgement by accumulator polarity identification circuit
And charging, when first lead-out terminal accesses anode, the 8th lumination of light emitting diode, when second output terminal accesses anode,
7th lumination of light emitting diode is judged the positive and negative anodes of battery by different lumination of light emitting diode, solved using general-purpose
The cumbersome polarity judgement of table, improves and judges polar working efficiency.
On the other hand, pass through the voltage in the ammeter and overvoltage crowbar in the current foldback circuit of the utility model
Table on-line monitoring, solves staff and frequently measures danger brought by charging current and charging voltage, make filling for battery
Electricity work is safer easy to operate.
Detailed description of the invention
Fig. 1 is a kind of composition block diagram of automatic identification accumulator polarity charger of the utility model embodiment；
Fig. 2 is a kind of circuit diagram of automatic identification accumulator polarity charger of the utility model embodiment.
Specific embodiment
Technical solutions of the utility model are described in detail below in conjunction with attached drawing, following embodiment is only used for more
The technical solution of the utility model is clearly demonstrated, therefore is intended only as example, and cannot be used as a limitation limitation the utility model
Protection scope.
Fig. 1 is a kind of composition block diagram of automatic identification accumulator polarity charger of the utility model embodiment.
In conjunction with Fig. 1, in the embodiments of the present invention, a kind of charger of automatic identification accumulator polarity is provided,
Including cabinet 10 and it is located in the box body the charging circuit 102, current foldback circuit 104, overvoltage crowbar 106, electric power storage in portion
Pond polarity instruction circuit 108 and accumulator polarity identification circuit 1010, charging circuit 102 and current foldback circuit 104, over-voltage are protected
Protection circuit 106, accumulator polarity indicating circuit 108, accumulator polarity identification circuit 1010 are parallel relationships.
Fig. 2 is a kind of circuit diagram of automatic identification accumulator polarity charger of the utility model embodiment.
Further, in conjunction with Fig. 2, in the above-mentioned charger of the utility model charging circuit 102 include: air switch F, it is molten
Disconnected device FU, transformer T, rectifier bridge D1 and filter capacitor C1；Wherein, the input terminal of air switch F, fuse FU and transformer T
It is connected in the circuit that firewire and zero curve are constituted, the output end of transformer T is connect with the input terminal of rectifier bridge D1, filter capacitor C1
It is connected in parallel between two output ends of the rectifier bridge, the output end of rectifier bridge D1 is the output end of charging circuit 102.
Further, charging circuit 102 further include:
First current-limiting resistance R1 and the first light emitting diode D2, and the first current-limiting resistance R1 and the first light emitting diode D2
Entirety and filter capacitor in series is parallel relationship.
It is understood that the first light emitting diode is arranged inside charging circuit, charger can be intuitively observed
Charging circuit whether work normally.
Further, current foldback circuit 104 includes: the first shunt resistance R2, the first potentiometer RX1, the first photoelectricity coupling
Clutch IC1, the second current-limiting resistance R3, third current-limiting resistance R4, the 4th current-limiting resistance R5, the first triode Q1, the first relay
The coil of K1, the 5th light emitting diode D5, ammeter and first capacitor C2；
Wherein, the first pin 1 of the first photoelectrical coupler IC1 is connect with the first potentiometer RX1, first photoelectric coupling
The second pin 2 of device IC1 is connect with the first shunt resistance R2, and the first potentiometer RX1 is connect with the first shunt resistance R2, the first light
The third pin 3 and third current-limiting resistance R4, first capacitor C2 of electric coupler IC1 is in turn connected to the first light emitting diode D2,
The base stage of first triode Q1 is connected between third current-limiting resistance R4 and first capacitor C2, the collector of the first triode Q1 with
The coil of first relay K1 is connected to the first shunt resistance R2, and the emitter of the first triode Q1 is connected to first capacitor
The 4th pin 4 and the second current-limiting resistance R3 of C2, the first photoelectrical coupler IC1 are connected serially to the first potentiometer RX1, the 4th current limliting electricity
The normally opened contact for hindering R6, the 5th light emitting diode D5 and the first relay K1 is connected in series, ammeter and the first shunt resistance R2
Connection.
Further, overvoltage crowbar 106 includes: the second potentiometer RX2, the second photoelectrical coupler IC2, the 5th current limliting
Resistance R5, the 6th current-limiting resistance R7, the second triode Q2, the coil of the second relay K2, the 6th light emitting diode D6 and voltage
Table；
Wherein, the first pin 1 of the second photoelectrical coupler IC2 and the second potentiometer RX2 are connected to the second photoelectrical coupler
The 4th pin 4 of IC2, the second pin 2 of photoelectrical coupler are connected to the emitter of the first triode Q1, the second photoelectrical coupler
Connect the 5th current-limiting resistance R5, the second triode Q2 and the second relay K2 between the third pin 3 and the 4th pin 4 of IC2
The normally opened contact of coil, the 6th current-limiting resistance R7, the 6th light emitting diode D6 and the second relay K2 is connected in series, voltmeter with
Charging circuit is connected in parallel.
It is arranged in ammeter and overvoltage crowbar 106 in current foldback circuit 104 and voltmeter is set, it can be intuitive
Monitor the charging voltage and charging current of battery.
Further, above-mentioned charger according to the present utility model, accumulator polarity indicating circuit 108 include: the 7th limit
Leakage resistance R8, the 8th current-limiting resistance R9, the 7th light emitting diode D7, the 8th light emitting diode D8, third relay K3 it is normally opened
The normally opened contact of contact and the 4th relay K4, the 7th current-limiting resistance R8, the 7th light emitting diode D7 and third relay K3's
Normally opened contact is connected in series, the normally opened contact series connection of the 8th current-limiting resistance R9, the 8th light emitting diode D8 and the 4th relay K4
Connection, and the series connection of the normally opened contact of the 7th current-limiting resistance R8, the 7th light emitting diode D7 and third relay K3 is whole
The entirety that the normally opened contact of body and the 8th current-limiting resistance R9, the 8th light emitting diode D8 and the 4th relay K4 are connected in series
It is connected in parallel.
Further, above-mentioned charger according to the present utility model, accumulator polarity identification circuit 1010 include: third hair
Optical diode D3, the 4th light emitting diode D4, coil, normally opened contact and the normally-closed contact of third relay K3, the 4th relay
Coil, normally opened contact and the normally-closed contact of K4, normally closed type reset button AN, first lead-out terminal A, the sub- B of second output terminal；
First lead-out terminal A and normally closed type reset button AN, the normally-closed contact of the first relay K1, the second relay K2
The normally-closed contact series connection of normally-closed contact, the 4th light emitting diode D4, the coil of the 4th relay K4 and third relay K3
To the sub- B of second output terminal；The normally-closed contact of 4th relay K4, the coil of third relay K3 and third light emitting diode D3 string
It is connected in parallel between the sub- B of second output terminal and the anode of the 4th light emitting diode D4 after connection；
The normally opened contact and the 4th of third relay K3 is additionally provided between first lead-out terminal A and the sub- B of second output terminal
The normally opened contact of relay K4.
The application method of this automatic identification accumulator polarity charger is introduced with reference to the accompanying drawing:
Power supply line is inserted into power supply by the first step, closes air switch F, and charging circuit is started to work, and charger enters preparation
State.The rectified bridge D1 rectification of transformer T output voltage and filter capacitor C1 filtering, voltage is after the first current-limiting resistance R1 current limliting
The first light emitting diode D2 is added to, the first light emitting diode D2 is lit.
Second step checks the 5th light emitting diode D5 of current foldback circuit, the 6th light-emitting diodes of overvoltage crowbar
Pipe D6, tetra- diodes of the 7th light emitting diode D7 and the 8th diode D8 of accumulator polarity indicating circuit are no luminous.
Two electrode of battery to be charged is respectively connected to the sub- B two-terminal of first lead-out terminal A, second output terminal by third step, this
When in two kinds of situation.
First lead-out terminal A access is battery positive voltage.The frequent Closed reduction button AN of positive polarity voltage, first at this time
The normally closed point of relay K1, the normally closed point of the second relay K2, the 4th light emitting diode D4, to the 4th relay K4 coil,
Normally closed point forming circuit through third relay K3, the coil of the 4th relay K4 obtain electric actuation, and the 4th relay K4's is normally opened
Point closure, power supply positive voltage are formed into a loop through the normally closed point of the 8th resistance R9, the 8th light emitting diode D8, the 4th relay K4,
First lead-out terminal A accesses the 8th light emitting diode D8 of battery positive voltage and is lit at this time.First lead-out terminal A is passed through at the same time
The opened point of 4th relay K4 is by the positive ends of access charger, and battery positive voltage is by the positive ends of access charger, B
O'clock opened point through the 4th relay K4 is accessed to charger negative polarity end, and the cathode of battery is by access charger negative polarity
End.
The sub- B access of second output terminal is battery positive voltage.At this time normally closed point of the positive polarity voltage through the 4th relay K4,
The coil of third relay K3, third light emitting diode D3, the normally closed point of K2 of the second relay, the first relay K1 normally closed point
Forming circuit, the coil of third relay K3 obtain electric actuation, and the opened point closure of third relay K3, power supply positive voltage is through the 7th
Resistance R8, the 7th light emitting diode D7, third relay K3 normally-closed contact forming circuit, the at this time sub- B access of second output terminal store
The 7th light emitting diode D7 of anode indicator light is lit.The sub- B of second output terminal is through the normal of third relay K3 at the same time
It prescribes by access charger positive ends, the anode of battery is by access charger positive ends, and first lead-out terminal is through third
The normally opened contact of relay K3 is accessed to charger negative polarity end, and battery terminal negative is by access charger negative polarity end.
To sum up, no matter battery anode in A point or in B point, charger positive ends all connect in battery always
Positive ends, charger negative polarity end are all connect always at the negative polarity end of battery.Charging current passes through electric current in charging process
Table A is directly observed, and charging voltage is directly observed by voltmeter V, until charging terminates.
Overcurrent protection, main power voltage output add through the first shunt resistance R2, third relay K3 or the 4th relay K4
To battery, battery consumption electric current can be showed at the first both ends shunt resistance R2 by voltage difference, this voltage by
The first pin 1 and second pin 2 of first potentiometer RX1 and the first photoelectrical coupler IC1 carries out cooperation and completes detection, when reaching
When setting protection value, third pin 3 and fourth pin of the supply voltage through second resistance R3 through the first photoelectrical coupler IC1
4,3rd resistor R4 are connected to the one or two capacitor C2, and coil, first triode Q1 of the voltage through the first relay K1 are formed into a loop,
First relay K1 obtains electric actuation, and the normally closed point of the first relay K1 separates, and accumulator polarity identification circuit control loop is broken
It opens, third relay K3 and the 4th relay K4 do not have actuation condition, to reach overcurrent protection purpose.
Overvoltage protection, first pin 1 and of the main power voltage through the second potentiometer RX2 and the second photoelectrical coupler IC2
Two pins 2 carry out cooperation and complete detection, when reaching setting protection value, third of the supply voltage through photoelectrical coupler IC2
Pin 3 and the 4th pin 4, the base stage of the 4th current-limiting resistance R5 to the second triode Q2, Q2 conducting, voltage is through the second relay K2
Coil, the second triode pole pipe Q2 forming circuit, the second relay K2 obtains electric actuation, and the normally-closed contact of the second relay K2 is disconnected
It opens, accumulator polarity identification circuit control loop is disconnected, and third relay K3 and the 4th relay K4 do not have actuation article
Part, to reach overvoltage protection purpose.
The 7th light emitting diode D7, the 8th light emitting diode D8 will be protected before the charger accesses battery at any time
Card is not lit, if having bright need to press reset button AN carries out reset operation.
To sum up, on the one hand: by the charger of the automatic identification accumulator polarity of the utility model, user was being operated
It is realized in journey and polarity discrimination is carried out to battery and charger without using multimeter, it is only necessary to indicate electricity in the battery of charger
In the case that seven light emitting diode of Lu Zhong and the 8th light emitting diode are not lit, battery is directly accessed charger
First lead-out terminal and second output terminal of accumulator polarity identification circuit, carry out polarity by accumulator polarity identification circuit
Judgement is to realize charge function, and when first lead-out terminal accesses anode, the 8th lumination of light emitting diode works as second output terminal
When son access anode, the 7th lumination of light emitting diode judges the positive and negative anodes of battery by different lumination of light emitting diode, solution
It has determined and has been judged using the cumbersome polarity of multimeter, improved and judge polar working efficiency.
On the other hand, pass through the voltage in the ammeter and overvoltage crowbar in the current foldback circuit of the utility model
Table on-line monitoring, solves staff and frequently measures danger brought by charging current and charging voltage, make filling for battery
Electricity work is safer easy to operate.
In the specification of the utility model, numerous specific details are set forth.It is to be appreciated, however, that the reality of the utility model
Applying example can practice without these specific details.In some instances, well known method, knot is not been shown in detail
Structure and technology, so as not to obscure the understanding of this specification.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should manage
Solution: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of skills
Art feature is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution the utility model
The range of each embodiment technical solution should all cover in the claim of the utility model and the range of specification.
Claims (8)
1. a kind of charger of automatic identification accumulator polarity, which is characterized in that including cabinet and be located in the box body the charging in portion
Circuit, accumulator polarity indicating circuit and accumulator polarity identification circuit, the charging circuit and the accumulator polarity indicate
Circuit and the accumulator polarity circuit are parallel relationships.
2. charger according to claim 1, which is characterized in that the box house further includes current foldback circuit and mistake
Voltage protection circuit, the current foldback circuit and overvoltage crowbar and charging circuit are parallel relationships.
3. charger according to claim 1, which is characterized in that the charging circuit include: air switch, fuse,
Transformer, rectifier bridge and filter capacitor；Wherein, the input terminal of the air switch, fuse and transformer is connected on input electricity
It pushes back in road, the output end of the transformer is connect with the input terminal of the rectifier bridge, and the filter capacitor is connected in parallel on described whole
Between two output ends for flowing bridge, the output end of the rectifier bridge is the output end of the charging circuit.
4. charger according to claim 3, which is characterized in that the charging circuit further include:
First current-limiting resistance and the first light emitting diode, and first current-limiting resistance and first light emitting diode series connection
The entirety of composition and the filter capacitor are parallel relationship.
5. charger according to claim 2, which is characterized in that the current foldback circuit include: the first shunt resistance,
First potentiometer, the first photoelectrical coupler, the second current-limiting resistance, third current-limiting resistance, the 4th current-limiting resistance, the first triode,
The coil of first relay, the 5th light emitting diode, ammeter and first capacitor；
The first pin and the first potentiometer of first photoelectrical coupler are connected to one end of the first shunt resistance, and described first
The second pin of photoelectrical coupler is connect with the other end of first shunt resistance, first potentiometer with described first point
Leakage resistance connection, the base stage of the first triode are connected between third current-limiting resistance and first capacitor, the current collection of the first triode
The coil of pole and the first relay is connected to the first shunt resistance, and the emitter of the first triode is connected to first capacitor,
The 4th pin and the third current-limiting resistance of first photoelectrical coupler are connected serially to the first potentiometer, the 4th current limliting electricity
The normally opened contact of resistance, the 5th light emitting diode and the first relay is connected in series, and the ammeter is connect with the first shunt resistance.
6. charger according to claim 2, which is characterized in that the overvoltage crowbar includes: the second potentiometer,
Two photoelectrical couplers, the 5th current-limiting resistance, the 6th current-limiting resistance, the second triode, the coil of the second relay, the 6th luminous two
Pole pipe and voltmeter；
Wherein, what the first pin of second photoelectrical coupler was connected to the second photoelectrical coupler with the second potentiometer the 4th draws
Foot, the second pin of second photoelectrical coupler are connected to the emitter of the first triode, second photoelectrical coupler
The coil of the 5th current-limiting resistance of series connection, the second light emitting diode and the second relay, described between third pin and the 4th pin
The normally opened contact of 6th current-limiting resistance, the 6th light emitting diode and the second relay is connected in series, the voltmeter and charging electricity
Road is connected in parallel.
7. charger according to claim 1, which is characterized in that the accumulator polarity indicating circuit includes: the 7th limit
Leakage resistance, the 8th current-limiting resistance, the 7th light emitting diode, the 8th light emitting diode, third relay normally opened contact and the 4th
The normally opened contact of relay, the normally opened contact of the 7th current-limiting resistance, the 7th light emitting diode and third relay, which is connected, to be connected
It connects, the normally opened contact of the 8th current-limiting resistance, the 8th light emitting diode and the 4th relay is connected in series, and the described 7th
The entirety and the 8th current limliting electricity that the normally opened contact of current-limiting resistance, the 7th light emitting diode and third relay is connected in series
The entirety that the normally opened contact of resistance, the 8th light emitting diode and the 4th relay is connected in series is connected in parallel.
8. charger according to claim 1, which is characterized in that the accumulator polarity identification circuit includes: third hair
Optical diode, the 4th light emitting diode, the coil of third relay, normally opened contact and normally-closed contact, the 4th relay coil,
Normally opened contact and normally-closed contact, normally closed type reset button, first lead-out terminal, second output terminal；
The normally closed touching of the first lead-out terminal and normally closed type reset button, the normally-closed contact of the first relay, the second relay
Point, the 4th light emitting diode, the coil of the 4th relay and the normally-closed contact of third relay are connected to second output terminal
Son；It is defeated that second is connected in parallel on after the normally-closed contact of 4th relay, the coil of third relay and the series connection of third light emitting diode
Out between terminal and the anode of the 4th light emitting diode；There are also third relays between first lead-out terminal and second output terminal
Normally opened contact and the 4th relay normally opened contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820618438.XU CN208423824U (en) | 2018-04-27 | 2018-04-27 | A kind of charger of automatic identification accumulator polarity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820618438.XU CN208423824U (en) | 2018-04-27 | 2018-04-27 | A kind of charger of automatic identification accumulator polarity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208423824U true CN208423824U (en) | 2019-01-22 |
Family
ID=65116520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820618438.XU Expired - Fee Related CN208423824U (en) | 2018-04-27 | 2018-04-27 | A kind of charger of automatic identification accumulator polarity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208423824U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922473A (en) * | 2021-12-13 | 2022-01-11 | 深圳市永联科技股份有限公司 | Charging protection circuit unit and related product |
-
2018
- 2018-04-27 CN CN201820618438.XU patent/CN208423824U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922473A (en) * | 2021-12-13 | 2022-01-11 | 深圳市永联科技股份有限公司 | Charging protection circuit unit and related product |
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