CN104022491A - Intelligent polarity recognition protection device for battery cable - Google Patents
Intelligent polarity recognition protection device for battery cable Download PDFInfo
- Publication number
- CN104022491A CN104022491A CN201410286722.8A CN201410286722A CN104022491A CN 104022491 A CN104022491 A CN 104022491A CN 201410286722 A CN201410286722 A CN 201410286722A CN 104022491 A CN104022491 A CN 104022491A
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- polarity
- circuit
- storage battery
- battery
- crocodile clip
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The invention relates to an automobile, relates to the field of electronic protection devices, particularly relates to a protective connecting circuit device for preventing a battery from inverse connection, and aims at providing an intelligent polarity recognition protection device for a battery cable. The intelligent polarity recognition protection connecting device does not work when an emergency power supply or a standby battery and a motor vehicle battery are in reverse polarity connection, so that the condition that the battery or a charger is burnt out due to inverse polarity connection of the cables, and accidental life injuries to operators can be thoroughly eradicated. The intelligent polarity recognition protection device mainly comprises a shell, a control circuit board arranged inside the shell, a light-emitting diode (LED) display lamp of a shell panel, a voice speaker and two pairs of crocodile clip battery cables arranged inside a housing of the shell, wherein a lithium battery pack is placed inside the shell for providing work power supply for the device, and the overall intelligent polarity recognition protection device is an independent whole, and is convenient to operate and carry.
Description
Technical field
The present invention relates to automobile and relate to electronic protection field, relate in particular to a kind of protection connecting circuit device that prevents storage battery reversal connection.
Background technology
In prior art, in the time that the storage battery of motor vehicles cannot start work, conventionally adopt emergency power supply or standby battery to replace the storage battery of motor vehicles self to carry out startup work.When the storage battery connecting line of required emergency power supply or standby battery is connected with the storage battery of motor vehicles, general connection status is that positive pole connects positive pole, negative pole connects negative pole, but current used storage battery connecting line, there is no the measure of any electric power polarity protection, on two pairs of crocodile clips, indicated by the color of red and black, use for user's identification in the time operating, this kind of practice is still has quite high potentially danger, once user's polarity is done instead or operating process is touched two crocodile clips together because of carelessness, the electric power of two storage battery rooms reversal connection state or short-circuit condition, at this moment can cause the situation that storage battery or charger burn even to bring unexpected life injury to operating personnel by producing powerful spark.In view of current used storage battery connecting line, because of without any safeguard measure, be as a device that can allow user's safety operation, obviously to have the utmost point to treat improved necessity.
Summary of the invention
The object of the present invention is to provide a kind of storage battery connecting line polarity intelligent identification protecting device; when its emergency power supply or standby battery and motor vehicles storage battery polarity connect when contrary; polarity intelligent identification protecting jockey can not be worked, and can thoroughly stop because connecting line polarity connection causes on the contrary the situation that storage battery or charger burn and brings unexpected life injury to operating personnel.
For achieving the above object, technical scheme of the present invention is to realize like this, a kind of storage battery connecting line polarity intelligent identification protecting device, it is characterized in that: this device is made up of A/B/C Unit tri-, wherein A unit is by connecting crocodile clip 2, polarity detection circuit 3, display circuit 4 and executive circuit 5 form, motor vehicle storage battery 1 is sent voltage into polarity detection circuit 3 through connecting crocodile clip 2, if polarity of voltage correct polarity testing circuit 3 is sent detection signal into control circuit 10, the action command of the controlled circuit 10 of executive circuit 5 and complete motor vehicle storage battery polarity detect action.
B unit forms by connecting crocodile clip 9, polarity detection circuit 6, display circuit 8 and executive circuit 7, back-up source 11 is sent voltage into polarity detection circuit 6 through connecting crocodile clip 9, if polarity of voltage correct polarity testing circuit 6 is sent detection signal into control circuit 10, the action command of the controlled circuit 10 of executive circuit 7 and and complete back-up source polarity detect action.
Motor vehicle storage battery 1 is sent into magnetic latching relay 5 by connecting crocodile clip 2, back-up source 11 is sent into magnetic latching relay 7 by connecting crocodile clip 9, correct if two ends polarity connects, now the voltage of back-up source 11 will be transported to motor vehicle storage battery 1 and complete the startup work of motor vehicles.
If polarity of voltage mistake; polarity detection circuit 3 is sent into control circuit 10 without detection signal; executive circuit 5 does not obtain action command and can not move; although motor vehicle storage battery 1 be connected that crocodile clip 2 is connected but cannot connect with back-up source 11; now the red LED lamp above polarity intelligent identification protecting jockey will be glimmered, and alert connects crocodile clip 2 and connects incorrect polarity.
As a further improvement on the present invention, back-up source 11 is sent voltage into polarity detection circuit 6 through connecting crocodile clip 9, if polarity of voltage correct polarity testing circuit 6 is sent detection signal into control circuit 10, the action command of the controlled circuit 10 of executive circuit 7 is by back-up source 11 by connecting crocodile clip 9 UNICOM's back-up sources 11, and now the voltage of back-up source 11 will be transported to motor vehicle storage battery 1 and complete the startup work of motor vehicles.
If polarity of voltage mistake; polarity detection circuit 6 is sent into control circuit 10 without detection signal; executive circuit 7 does not obtain action command and can not move; although back-up source 11 be connected that crocodile clip 9 is connected but cannot connect with motor vehicle storage battery 1; now the blue led lamp above polarity intelligent identification protecting jockey will glimmer, and alert connects incorrect polarity.
As a further improvement on the present invention, C unit is made up of control circuit 10, voice message 13 and lithium battery 12, all prompting is informed when polarity connects voice 13 when correct, lithium battery 12 provides working power for control circuit 10, magnetic latching relay 5 and magnetic latching relay 7.
Improvement of the present invention is:
1, storage battery connecting line polarity intelligent identification protecting device is mainly made up of housing and two pairs of crocodile clip storage battery connecting lines being placed in control circuit board, case panel LED display lamp, the voice loud speaker in housing and being placed in housing shell; be placed with lithium battery group in enclosure interior and provide working power for device; whole polarity intelligent identification protecting jockey is an independent entirety, convenient operation and carrying.
2, two pairs of crocodile clip storage battery connecting lines that are placed in housing shell arbitrarily a pair of junctor motor-car storage battery arbitrarily or stand-by power supply, without differentiation, have greatly facilitated user's operation.
, control unit be completed by microprocessor rightcrocodile clip storage battery connecting line
the polarization state of the storage battery connecting, and then output switching control signal is to magnetic latching relay; The component number of more stablizing, adopting in the control circuit performance that adopts microprocessor to adopt discrete device to build as control ratio greatly reduces.
,adopt magnetic latching relay to be as carrying out its advantage of switch: the normally closed or normally open of magnetic latching relay is that the magnetic force that relies on permanent-magnet steel generation keeps completely, and the conversion of its on off state has triggered by the pulse electrical signal of certain width.Magnetic latching relay needs only a forever adhesive of forward electricity, and contact does not just need to keep voltage in the time of hold mode, just adds reverse voltage, reliable operation, energy-conservation if discharge.
Brief description of the drawings
Fig. 1: the general frame
Fig. 2: polarity intelligent identification protecting jockey catenation principle figure
Fig. 3: the working state figure when wiring of polarity intelligent identification protecting jockey is correct
Fig. 4: working state figure when polarity intelligent identification protecting jockey Y+ and Y-wiring error
Fig. 5: working state figure when polarity intelligent identification protecting jockey X+ and X-wiring error
Fig. 6: magnetic latching relay drive principle figure
Fig. 7: charhing unit circuit diagram
Fig. 8: outside drawing
embodiment
it is a kind of that main purpose of the present invention is to providepolarity intelligent identification protecting jockey,
can automatically detect and judge two pairscrocodile clip storage battery connecting line
whether the motor vehicle storage battery polarity connecting is consistent with stand-by power supply polarity, is exact connect ion with the polarity of guaranteeing motor vehicle storage battery polarity and stand-by power supply polarity.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail:
In Fig. 2, Y+ and Y-are a pair of crocodile clip storage battery connecting lines of polarity intelligent identification protecting jockey, in the time that motor vehicle accumulator jar is connected with Y+ and Y-crocodile clip storage battery connecting line, if when polarity is correct, light-sensitive device G1 work, light-sensitive device G1 output signal is to control board, microprocessor on control board sends action command and makes magnetic latching relay coil obtain electric J1 action, the control contact J1-1 of magnetic latching relay J1 and J1-2 closure, the generating positive and negative voltage terminal of motor vehicle accumulator jar is by Y+ and Y-crocodile clip storage battery connecting line, control fixed contact J2-1 and the J2-2 of the control contact J1-1 of magnetic latching relay J1 and J1-2 and magnetic latching relay J2 connect.Meanwhile, when the microprocessor on control board sends action command and makes magnetic latching relay coil obtain electric J1 action, sound circuit will send the suggestion voice that polarity is correct.
In same Fig. 2, X+ and X-are a pair of crocodile clip storage battery connecting lines of polarity intelligent identification protecting jockey, in the time that back-up source is connected with X+ and X-crocodile clip storage battery connecting line, if when polarity is correct, light-sensitive device G2 work, light-sensitive device G2 output signal is to control board, microprocessor on control board sends action command and makes magnetic latching relay coil obtain electric J2 action, the control contact J2-1 of magnetic latching relay J2 and J2-2 closure, the generating positive and negative voltage terminal of back-up source is by X+ and X-crocodile clip storage battery connecting line, control contact J1-1 and the J1-2 of the control contact J2-1 of magnetic latching relay J2 and J2-2 and magnetic latching relay J1 connect.Meanwhile, when the microprocessor on control board sends action command and makes magnetic latching relay coil obtain electric J2 action, sound circuit will send the suggestion voice that polarity is correct.The generating positive and negative voltage of back-up source has been delivered to by X+ and X-crocodile clip storage battery connecting line, the control contact J2-1 of magnetic latching relay J2 and the control contact J1-1 of J2-2 and magnetic latching relay J1 and J1-2 and Y+ and Y-crocodile clip storage battery connecting line on the positive and negative terminal of motor vehicle storage battery and has been completed a course of work like this, and now circuit working state as shown in Figure 3.
If when Y+ and Y-crocodile clip storage battery connecting line connection error, light-sensitive device G1 does not work non-output signal to control board, microprocessor on control board just can not send action command yet and make magnetic latching relay J1 action, relay J 1 is not worked, the control contact J1-1 of relay J 1 and J1-2 are in off-state, now LED 1 connects in forward, electric current makes it send ruddiness by current-limiting resistance R3 and LED 1, alert reverse polarity connection, now circuit working state as shown in Figure 4
If when X+ and X-crocodile clip storage battery connecting line connection error, light-sensitive device G2 does not work non-output signal to control board, microprocessor on control board just can not send action command yet and make magnetic latching relay J2 action, relay J 2 is not worked, the control contact J2-1 of relay J 2 and J2-2 are in off-state, now LED 1 connects in forward, electric current makes it send blue light by current-limiting resistance R6 and LED 2, alert reverse polarity connection, now circuit working state as shown in Figure 5.
Fig. 6 is that magnetic keeps driver control schematic diagram, and the present invention has adopted two magnetic latching relays, and this is one of them magnetic latching relay control principle drawing, and another operation principle is the same.Microprocessor output on control board plate is arrived ground through drive circuit and diode D1, D2 through resistance R 1, R2, keeps low level.Like this when in the time that A end adds high level, magnetic latching relay action, contact 1 and 2 and 3 and 4 is connected, automobile storage battery voltage is exported through contact, otherwise add high level at B end, magnetic latching relay involution, contact 1 and 2 and 3 and 4 disconnects, automobile storage battery voltage cannot be exported through contact, BL8023 is that bidirectional relay drives integrated special circuit, for controlling the work of magnetic latching relay, has output current large, the feature that quiescent dissipation is little, BL8023 bidirectional relay drive integrated circult pin function is as follows:
3 pin: input A connects trigger impulse, also can connect level triggers;
7 pin: input B connects trigger impulse, also can connect level triggers;
2 pin, 6 pin are sky pin;
1 pin: output QA succeeds line bag one end of electrical equipment;
5 pin: input QB succeeds the line bag other end of electrical equipment;
8 pin: Vdd adds relay working voltage anode;
4 pin: V ss adds relay working voltage negative terminal.
Fig. 7 is charhing unit circuit diagram, and lithium ion battery is a kind of rechargeable battery, and it mainly relies on lithium ion between positive pole and negative pole, to move work, is the representative of modern high performance battery.Lithium battery major advantage: energy comparison height is approximately 6-7 times of lead-acid battery; Long service life, can reach more than 6 years useful life; Rated voltage high (monomer operating voltage is 3.7V or 3.2V), approximates the series voltage of 3 NI-Gs or nickel-hydrogen chargeable cell, is convenient to form battery supply group; Possesses high power holding capacity; Self-discharge rate is very low, and this is one of the most outstanding superiority of this battery, generally can accomplish below 1%/moon, less than 1/20 of Ni-MH battery; Lightweight, under same volume, weight is about the 1/6-1/5 of plumbic acid product; High low temperature strong adaptability, can be at-20 DEG C--under the environment of 60 DEG C, use; The present invention adopts 4 joint square 3.7v lithium batteries (model 523450), is used to control and executive circuit that power supply is provided, and adopts the charger special circuit chip CN3703 of constant current/constant voltage charging to carry out Charge Management to lithium ion battery.This chip is PWM decompression mode lithium ion Charge Management integrated circuit, can be independently carry out comprehensively management automatically to lithium ion cell charging, has packaging appearance little, and peripheral component is few and use the advantages such as simple.The input voltage of charhing unit takes out from the direct voltage that outputs to LED module group unit, after electric capacity 6C1, be added to 15 pin of charger circuit chip CN3703, the 1 pin builtin voltage modulator output of charger circuit chip CN3703, for internal drive circuits provides power supply, between 1 pin and 15 pins, meet the electric capacity 6C2 of a 100nF; 4 pin outer meeting resistance R2 and the LED 2 of charger circuit chip CN3703, when charging, LED 2 is bright, 5 pin outer meeting resistance R1 and the LED 1 of charger circuit chip CN3703, when charging finishes, LED 1 is bright; The 6 pin battery temperature monitor input terminals of charger circuit chip CN3703, at this pin to the thermistor Rt that connects a negative temperature coefficient between ground, if battery temperature exceeds normal range (NR), charging process will be suspended, until battery temperature is returned in normal temperature range; The 13 pin charging currents of charger circuit chip CN3703 detect positive input terminals, and this pin and 14 pins are measured charging current and detected the voltage at resistance R 6 two ends, and this voltage signal is fed back to chip carry out current-modulation; The grid of the outer P channel MOS field-effect transistor Q1 of 16 pin driving chips of charger circuit chip CN3703, in the time that control signal is high level, Q1 conducting, 16 pin are that low level is forbidden charging; In the time that control signal is low level, Q1 turn-offs, and the voltage of 6 pin is determined by the thermistor Rt resistance value of negative temperature coefficient, carries out normal battery temperature monitoring.
Fig. 8 is storage battery connecting line polarity intelligent identification protecting device appearance schematic diagram of the present invention.
The content that this specification is not described in detail belongs to and well known to a person skilled in the art prior art; although oneself is illustrated the present invention and is described by relevant case study on implementation; but; those skilled in the art should be understood; in the scope of claims; can do the various variation in form and details, therefore protection scope of the present invention is when being as the criterion with claims.
Claims (3)
1. a storage battery connecting line polarity intelligent identification protecting device is characterized in that: this device is made up of A/B/C Unit tri-, wherein A unit is by connecting crocodile clip (2), polarity detection circuit (3), display circuit (4) and executive circuit (5) composition, motor vehicle storage battery (1) is sent voltage into polarity detection circuit (3) through connecting crocodile clip (2), if polarity of voltage correct polarity testing circuit (3) is sent detection signal into control circuit (10), the action command of the controlled circuit of executive circuit (5) (10) and complete motor vehicle storage battery polarity detect action, B unit forms by connecting crocodile clip (9), polarity detection circuit (6), display circuit (8) and executive circuit (7), back-up source (11) is sent voltage into polarity detection circuit (6) through connecting crocodile clip (9), if polarity of voltage correct polarity testing circuit (6) is sent detection signal into control circuit (10), the action command of the controlled circuit of executive circuit (7) (10) and and complete back-up source polarity detect action, by control circuit (10), voice message (13) and lithium battery, (12 (form in C unit, all prompting is informed when polarity connects voice (13) when correct, lithium battery (12) is that control circuit (10), magnetic latching relay (5) and magnetic latching relay (7) provide working power.
2. a kind of storage battery connecting line polarity intelligent identification protecting device is characterized in that according to claim 1: be mainly made up of housing and two pairs of crocodile clip storage battery connecting lines being placed in control circuit board, case panel LED display lamp, the voice loud speaker in housing and being placed in housing shell; be placed with lithium battery group in enclosure interior and provide working power for device; whole polarity intelligent identification protecting jockey is an independent entirety, convenient operation and carrying.
3. a kind of storage battery connecting line polarity intelligent identification protecting device is characterized in that according to claim 1: adopt magnetic latching relay as carrying out switch, reliable operation, energy-conservation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410286722.8A CN104022491A (en) | 2014-06-25 | 2014-06-25 | Intelligent polarity recognition protection device for battery cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410286722.8A CN104022491A (en) | 2014-06-25 | 2014-06-25 | Intelligent polarity recognition protection device for battery cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104022491A true CN104022491A (en) | 2014-09-03 |
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ID=51439120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410286722.8A Pending CN104022491A (en) | 2014-06-25 | 2014-06-25 | Intelligent polarity recognition protection device for battery cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN104022491A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602660A (en) * | 2016-12-30 | 2017-04-26 | 西安航天精密机电研究所 | Automatic charging device of AGV |
| CN109274084A (en) * | 2018-11-05 | 2019-01-25 | 浙江广为电器工具有限公司 | Automobile starting line reverse protection device |
-
2014
- 2014-06-25 CN CN201410286722.8A patent/CN104022491A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602660A (en) * | 2016-12-30 | 2017-04-26 | 西安航天精密机电研究所 | Automatic charging device of AGV |
| CN106602660B (en) * | 2016-12-30 | 2019-12-06 | 西安航天精密机电研究所 | automatic charging device of AGV |
| CN109274084A (en) * | 2018-11-05 | 2019-01-25 | 浙江广为电器工具有限公司 | Automobile starting line reverse protection device |
| CN109274084B (en) * | 2018-11-05 | 2024-04-26 | 浙江广为电器工具有限公司 | Reverse connection protection device for automobile starting line |
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Application publication date: 20140903 |
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| WD01 | Invention patent application deemed withdrawn after publication |