CN104836314A - New energy vehicle system with function of charge protection - Google Patents
New energy vehicle system with function of charge protection Download PDFInfo
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- CN104836314A CN104836314A CN201510267279.4A CN201510267279A CN104836314A CN 104836314 A CN104836314 A CN 104836314A CN 201510267279 A CN201510267279 A CN 201510267279A CN 104836314 A CN104836314 A CN 104836314A
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- charging
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a new energy vehicle system with a function of charge protection, and the system comprises a charging pile and a new energy vehicle. The charging pile comprises a voltage transformation circuit, a charging plug, an optical coupler, and a relay. The charging plug comprises a first charging positive end, a first charging negative end, and a first control end. The voltage transformation circuit is connected with a power grid, and the positive output end of the voltage transformation circuit is connected with the output public end of the relay and the output positive electrode of the optical coupler. The output normally-closed end of the relay is connected with the first charging positive end, and the output normally-opened end of the relay is connected with one input end of the relay and the output negative electrode of the optical coupler. The first control end is connected with the positive input end of the optical coupler. The other end of the relay, the negative output end of the voltage transformation circuit and the negative input end of the optical coupler are connected with the first charging negative end. Through the relay, the connection of the voltage transformation circuit with a charging circuit is cut off after a battery is charged fully, thereby enabling the charging circuit to be cut off completely, and avoiding overcharging.
Description
Technical field
The present invention relates to new forms of energy car field, particularly relate to a kind of new forms of energy truck system with charge protection.
Background technology
New forms of energy car is more and more subject to the attention of country because of environmental protection and energy saving, electric motor car is an accounting part very in new forms of energy car, includes the battery pack for driving vehicle wheel rotation in the car body of electric motor car.Existing electric motor car has the circuit preventing from overcharging, but existing circuit is all when being full of, charging circuit does not export, after having spent a period of time, cell voltage declines a little a little, then charging circuit can charge again, and this has just occurred the situation of floating charge, is easy to cause the life-span of battery to reduce.The use microcontroller also had carries out Based Intelligent Control, but microcontroller exists the problem of reliability, and microcontroller may lose efficacy due to electromagnetic interference, uses microcontroller equally also to there is the problem of high cost.
Summary of the invention
The technical problem to be solved in the present invention, is to provide a kind of new forms of energy truck system with charge protection, solves over-charging of battery, high problem of controlling cost.
The present invention is achieved in that a kind of new forms of energy truck system with charge protection, comprise charging pile and new forms of energy car, described charging pile comprises transforming circuit, charging plug, optocoupler and relay, charging plug comprises the first charging positive terminal, first charging negative pole end and the first control end, transforming circuit is used for being connected with electrical network, the cathode output end of transforming circuit is connected with the output cathode of the output common port of relay and optocoupler, the output normal-closed end and first of the relay positive terminal that charges is connected, the output Chang Kaiduan of relay is connected with an input of relay and optocoupler output negative pole, first control end is connected with the electrode input end of optocoupler, another input of relay, the cathode output end of transforming circuit, the negative input and first of the optocoupler negative pole end that charges is connected,
Described new forms of energy car comprises charging socket, charging circuit, battery pack, cell voltage comparable chip and reference voltage chip, charging socket comprises the second charging positive terminal, second charging negative pole end and the second control end, the cathode output end of charging circuit and the positive pole of battery pack, the in-phase input end of cell voltage comparable chip connects, the inverting input of cell voltage comparable chip is connected with the output of reference voltage chip, the output of cell voltage comparable chip is connected with the second control end, the electrode input end of reference voltage chip and the in-phase input end of cell voltage comparable chip, the electrode input end of charging circuit is connected with the second charging positive terminal, the inverting input of cell voltage comparable chip, the negative input of charging circuit, the cathode output end of charging circuit, the negative pole of battery pack is connected with the second charging negative pole end.
Further, also comprise charging indication light diode, the positive pole and first of the described charging indication light diode positive terminal that charges is connected, and the negative pole and first of the indication light diode that the charges negative pole end that charges is connected.
Further, also comprise and be full of indication light diode, described in be full of indication light diode an input of positive pole and relay be connected, another input of the negative pole and relay that are full of indication light diode is connected.
Further, new forms of energy car also includes temperature voltage comparable chip, temperature voltage dress changes circuit, reference voltage circuit and OR circuit, temperature voltage dress changes circuit for the temperature transition of battery pack is become voltage, the output of temperature voltage change-over circuit is connected with the in-phase input end of temperature voltage comparable chip, the inverting input of temperature voltage comparable chip is connected with reference voltage circuit, the output of temperature voltage comparable chip is connected with an input of OR circuit, another input of OR circuit is connected with the output of cell voltage comparable chip, the output of OR circuit is connected with the second control end.
Tool of the present invention has the following advantages: by relay, disconnects the connection of transforming circuit and charging circuit after battery is full of, and charging circuit is disconnected completely, avoids the charging be full of to battery after electricity, avoids situation about overcharging.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is another structural representation of the present invention.
Embodiment
By describing technology contents of the present invention, structural feature in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with execution mode.
Refer to Fig. 1, the invention provides a kind of new forms of energy truck system with charge protection, comprise charging pile and new forms of energy car, described charging pile comprises transforming circuit, charging plug, optocoupler U1 and relay LS1, charging plug comprises the first charging positive terminal, first charging negative pole end and the first control end, transforming circuit is used for being connected with electrical network, the cathode output end of transforming circuit is connected with the output cathode of the output common port of relay and optocoupler, the output normal-closed end and first of the relay positive terminal that charges is connected, the output Chang Kaiduan of relay is connected with an input of relay and optocoupler output negative pole, first control end is connected with the electrode input end of optocoupler, another input of relay, the cathode output end of transforming circuit, the negative input and first of the optocoupler negative pole end that charges is connected,
Described new forms of energy car comprises charging socket, charging circuit, battery pack BT1, cell voltage comparable chip U2 and reference voltage chip, charging socket comprises the second charging positive terminal, second charging negative pole end and the second control end, the cathode output end of charging circuit and the positive pole of battery pack, the in-phase input end of cell voltage comparable chip connects, the inverting input of cell voltage comparable chip is connected with the output of reference voltage chip, the output of cell voltage comparable chip is connected with the second control end, the electrode input end of reference voltage chip and the in-phase input end of cell voltage comparable chip, the electrode input end of charging circuit is connected with the second charging positive terminal, the inverting input of cell voltage comparable chip, the negative input of charging circuit, the cathode output end of charging circuit, the negative pole of battery pack is connected with the second charging negative pole end.When charging plug is connected with charging socket, the first charging positive terminal, the first charging negative pole end, the first control end charge negative pole end, the second control end of positive terminal, second that charge with second is respectively connected.
Wherein, relay is five pin relays, and under input no power state, the output common port of relay is connected with output normal-closed end, and under the state of input energising, the output common port of relay can be connected with output Chang Kaiduan.According to the voltage of different input, common model has varied, as the CJX2-1210 series etc. of positive safe 220V or 380V.Optocoupler is when input is energized, and inner light-emitting diode can be luminous, makes the triode ON of output.Common model has PC817, TLP351 etc., if the operating voltage of voltage compare chip is too high, is connected after can adopting step-down with optocoupler again.Transforming circuit for realizing the transformation of voltage, thus produces direct voltage, and as changed to output voltage from high direct voltage, DC low-voltage changes to output voltage or alternating voltage changes to direct voltage, if Fig. 1 is for change into direct current by 380V three-phase alternating current.Common transforming circuit form comprises LDO, DC-DC and AC-DC etc.If namely common charger for mobile phone is AC-DC transforming circuit.Charging circuit is used for the voltage of potential circuit to be charged in battery pack, and charging circuit can realize voltage detecting, electric current and voltage control etc., can ensure the safety of battery pack.Voltage compare chip is for realizing the comparison of reference voltage and battery voltage, when battery pack is full of, the voltage of battery pack can higher than reference voltage, now cell voltage comparable chip exports high level, if battery pack is not full of, then battery voltage is lower than reference voltage, now cell voltage comparable chip output low level.Reference voltage is exactly a stable voltage, and reference voltage chip can be adopted to realize stable reference voltage accurately.
In use, transforming circuit connects output dc voltage after external voltage in the present invention, now relay output common port with export Chang Kaiduan and be interconnected, transforming circuit is connected with charging circuit, and charging circuit is to batteries charging.Now battery pack is not also full of electricity, and voltage is lower, and cell voltage comparable chip output low level, optocoupler does not work, and relay does not also work.After battery pack is full of electricity, battery voltage raises, battery voltage is greater than reference voltage, now optocoupler luminescence work, optocoupler triode ON, the cathode voltage of transforming circuit is made to be added to the input of relay, relay input is made to obtain electric and start adhesive, after adhesive, the output common port of relay is connected with output Chang Kaiduan, the cathode output end of transforming circuit is made directly to receive the input of relay, the energising of latching relay, relay can be remained on always and export common port and the state that is connected of output Chang Kaiduan, thus be disconnected the physical connection of transforming circuit and charging circuit, battery pack is not recharged.Even if battery voltage declines to some extent, also can not affect the work of relay, namely relay still can keep the state that the connection of transforming circuit and charging circuit disconnects.And when needs charge again to battery pack, only need the connection disconnecting transforming circuit and electrical network, then once charge on the power supply connecting transforming circuit can carry out.Thus avoiding when power supply connects, battery voltage declines the problem will carrying out charging a little.The present invention has completely cut off transforming circuit and charging circuit physically, it also avoid transforming circuit to problems such as the electromagnetic interference of charging voltage.Components and parts price of the present invention is low, easily purchases, and structure is simple, good reliability.
In certain embodiments, as shown in Figure 2, control to realize temperature, also include temperature voltage comparable chip U3, temperature voltage dress changes circuit, reference voltage circuit and OR circuit U4, temperature voltage dress changes circuit for the temperature transition of battery pack is become voltage, the output of temperature voltage change-over circuit is connected with the in-phase input end of temperature voltage comparable chip, the inverting input of temperature voltage comparable chip is connected with reference voltage circuit, the output of temperature voltage comparable chip is connected with an input of OR circuit, another input of OR circuit is connected with the output of cell voltage comparable chip, the output of OR circuit is connected with the second control end.Temperature voltage dress changes circuit multiple implementation, and as the form of the thermistor RD1 in Fig. 2 and resistance R1 dividing potential drop can be adopted to realize, the resistance of thermistor rises with temperature and becomes large, and thermistor is arranged on the battery pack.Certainly, temperature voltage change-over circuit also can adopt special transducer to realize.Reference voltage circuit can adopt another one reference voltage chip to realize, and in certain embodiments, in order to save component counts, realizes after can carrying out dividing potential drop with resistance R2 and resistance R3 to the voltage of reference voltage chip output.Namely one end of resistance R2 is connected with the output of reference voltage chip, and the other end of resistance R2 is connected with the inverting input of one end of resistance R3 and temperature voltage comparable chip, and the other end and second of the resistance R3 negative pole end that charges is connected.Temperature voltage change-over circuit is when battery voltage is too high, high pressure can be exported, now the voltage of temperature voltage change-over circuit is greater than the voltage of reference voltage circuit, temperature voltage comparable chip exports high pressure, OR circuit also just exports high pressure, thus be with motor type relay work and power-off, avoiding continues to charge brings danger to battery pack.
Further, also comprise charging indication light diode D2, the positive pole and first of the described charging indication light diode positive terminal that charges is connected, and the negative pole and first of the indication light diode that the charges negative pole end that charges is connected.During charging, charging indication light diode can be lighted, prompting user.
Further, also comprise and be full of indication light diode D1, described in be full of indication light diode an input of positive pole and relay be connected, another input of the negative pole and relay that are full of indication light diode is connected.When being full of, being full of light-emitting diode can light, prompting user.
The foregoing is only embodiments of the invention; not thereby scope of patent protection of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. one kind has the new forms of energy truck system of charge protection, it is characterized in that: comprise charging pile and new forms of energy car, described charging pile comprises transforming circuit, charging plug, optocoupler and relay, charging plug comprises the first charging positive terminal, first charging negative pole end and the first control end, transforming circuit is used for being connected with electrical network, the cathode output end of transforming circuit is connected with the output cathode of the output common port of relay and optocoupler, the output normal-closed end and first of the relay positive terminal that charges is connected, the output Chang Kaiduan of relay is connected with an input of relay and optocoupler output negative pole, first control end is connected with the electrode input end of optocoupler, another input of relay, the cathode output end of transforming circuit, the negative input and first of the optocoupler negative pole end that charges is connected,
Described new forms of energy car comprises charging socket, charging circuit, battery pack, cell voltage comparable chip and reference voltage chip, charging socket comprises the second charging positive terminal, second charging negative pole end and the second control end, the cathode output end of charging circuit and the positive pole of battery pack, the in-phase input end of cell voltage comparable chip connects, the inverting input of cell voltage comparable chip is connected with the output of reference voltage chip, the output of cell voltage comparable chip is connected with the second control end, the electrode input end of reference voltage chip and the in-phase input end of cell voltage comparable chip, the electrode input end of charging circuit is connected with the second charging positive terminal, the inverting input of cell voltage comparable chip, the negative input of charging circuit, the cathode output end of charging circuit, the negative pole of battery pack is connected with the second charging negative pole end.
2. a kind of new forms of energy truck system with charge protection according to claim 1; it is characterized in that: also comprise charging indication light diode; the positive pole and first of the described charging indication light diode positive terminal that charges is connected, and the negative pole and first of the charging indication light diode negative pole end that charges is connected.
3. a kind of new forms of energy truck system with charge protection according to claim 1; it is characterized in that: also comprise and be full of indication light diode; one input of the described positive pole and relay that are full of indication light diode is connected, and another input of the negative pole and relay that are full of indication light diode is connected.
4. a kind of new forms of energy truck system with charge protection according to claim 1, it is characterized in that: new forms of energy car also includes temperature voltage comparable chip, temperature voltage dress changes circuit, reference voltage circuit and OR circuit, temperature voltage dress changes circuit for the temperature transition of battery pack is become voltage, the output of temperature voltage change-over circuit is connected with the in-phase input end of temperature voltage comparable chip, the inverting input of temperature voltage comparable chip is connected with reference voltage circuit, the output of temperature voltage comparable chip is connected with an input of OR circuit, another input of OR circuit is connected with the output of cell voltage comparable chip, the output of OR circuit is connected with the second control end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510267279.4A CN104836314B (en) | 2015-05-25 | 2015-05-25 | A kind of new forms of energy car system with charge protection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510267279.4A CN104836314B (en) | 2015-05-25 | 2015-05-25 | A kind of new forms of energy car system with charge protection |
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| Publication Number | Publication Date |
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| CN104836314A true CN104836314A (en) | 2015-08-12 |
| CN104836314B CN104836314B (en) | 2016-08-31 |
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| CN201510267279.4A Active CN104836314B (en) | 2015-05-25 | 2015-05-25 | A kind of new forms of energy car system with charge protection |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2181117Y (en) * | 1993-10-11 | 1994-10-26 | 青岛专用汽车制造厂 | Recharging machine |
| CN2181119Y (en) * | 1994-03-02 | 1994-10-26 | 刘玉清 | Quick recharging machine for nickel-chrome battery |
| CN201490745U (en) * | 2009-06-16 | 2010-05-26 | 陶佳 | Charger |
| JP2011019330A (en) * | 2009-07-08 | 2011-01-27 | Toshiba Corp | Charging apparatus |
| CN202602326U (en) * | 2012-05-09 | 2012-12-12 | 杭州勇华车业有限公司 | Charger with over-voltage protection |
-
2015
- 2015-05-25 CN CN201510267279.4A patent/CN104836314B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2181117Y (en) * | 1993-10-11 | 1994-10-26 | 青岛专用汽车制造厂 | Recharging machine |
| CN2181119Y (en) * | 1994-03-02 | 1994-10-26 | 刘玉清 | Quick recharging machine for nickel-chrome battery |
| CN201490745U (en) * | 2009-06-16 | 2010-05-26 | 陶佳 | Charger |
| JP2011019330A (en) * | 2009-07-08 | 2011-01-27 | Toshiba Corp | Charging apparatus |
| CN202602326U (en) * | 2012-05-09 | 2012-12-12 | 杭州勇华车业有限公司 | Charger with over-voltage protection |
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| Publication number | Publication date |
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| CN104836314B (en) | 2016-08-31 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xia Hang Inventor after: He Tao Inventor after: Xiao bin Inventor after: Zhang Jinjin Inventor after: Wang Min Inventor before: Lin Biqin |
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| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170619 Address after: 510000 nine Guangdong, Guangzhou 333, Jianshe Road 245, Guangzhou, China Patentee after: GUANGZHOU XIAOPENG MOTORS TECHNOLOGY Co.,Ltd. Address before: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20170619 Address after: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: 362303 Fujian city of Quanzhou province Nanan City Dong Tian Zhen Mei Yang Village No. 56 Patentee before: QUANZHOU NAN'AN ZHOUFEI ELECTRONIC TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right |