CN203331864U - Power battery charging protective device - Google Patents
Power battery charging protective device Download PDFInfo
- Publication number
- CN203331864U CN203331864U CN201320292391XU CN201320292391U CN203331864U CN 203331864 U CN203331864 U CN 203331864U CN 201320292391X U CN201320292391X U CN 201320292391XU CN 201320292391 U CN201320292391 U CN 201320292391U CN 203331864 U CN203331864 U CN 203331864U
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- Prior art keywords
- control relay
- power supply
- relay
- charge
- 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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- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a power battery charging protective device including a pre-charging control relay, a main motor control relay, a charging control relay, and a charging protective relay. The pre-charging control relay and the main motor control relay are connected with a normalizing power supply, the charging control relay and the charging protective relay are connected with a low-voltage storage battery charging power supply, and the charging protective relay controls the coils of the pre-charging control relay and the main motor control relay to a power-off state when in a charging state. According to the power cell charging protective device provided, problems that the live-line starting is generated when a hybrid power vehicle in the prior art is charged and a charging socket is electrified by high-voltage electricity after the hybrid power vehicle is powered off are solved.
Description
Technical field
The utility model relates to a kind of protector for battery charging, especially, relates to the power battery charging fender guard in a kind of hybrid electric vehicle.
Background technology
Auto-industry are backbone industrys of a country, and the demand an urgent demand auto-industry of environment and the energy reduce dependence and the use to fossil energy, use at present the car category of alternative energy to comprise pure electric vehicle, hybrid electric vehicle and fuel-cell vehicle etc.Wherein, the hybrid electric vehicle comprehensive application technical advantage of traditional fuel vehicle and pure electric vehicle, can save more fuel oil than traditional fuel vehicle on the one hand, long more a lot of than pure electric vehicle travelled distance on the other hand.
The battery used in hybrid electric vehicle has two kinds, and a kind of is high tension battery, i.e. electrokinetic cell, for Vehicle Driving Cycle provides power, as drive motor, electric power steering pump, electric boosted air compressor, electric air-conditioning and DC/DC etc.; Another kind is low tension battery, is mainly used in as electric apparatus mounted on vehicle provides power supply, as the various controllers of vehicle, sound equipment, illumination etc.
Vehicle is when being charged; vehicle is connected with the external charging power supply; the driver may ignore the charge condition of vehicle; in the car process of charging, burst starts vehicle; if lack necessary safety method; after making Vehicle Driving Cycle by drive motor controller, easily pull apart the external charge power lead, safety misadventure occurs.And, in the situation that use high potential (being greater than 48V) electrokinetic cell, after the disconnecting external charge power supply connects, the charge power supply socket still keeps being connected with electrokinetic cell, make on the charge power supply socket, with unsafe high-tension current, can to cause serious safe consequence after touching.
Shown in Fig. 1 and Fig. 2, briefly introduce the power-supplying circuit that there is charge function in a kind of hybrid electric vehicle of the prior art.This control circuit is connected with external AC power supply 25, high tension battery 22 and electric machine controller 23, comprise: precharge control circuit 11, high voltage power transmission control circuit 12 and external charge circuit 13, described precharge control circuit 11, described high voltage power transmission control circuit 12 and described external charge circuit 13 are selected a job.Adopt this power-supplying circuit, make car load high voltage power transmission control circuit and external charge circuit select a job, when with external AC, the hybrid vehicle high tension battery being charged without starting the high voltage power transmission control circuit, thereby guarantee the high-voltage safety in the high tension battery process of charging.
But at least there are the following problems for above-mentioned prior art:
1. to select a control be to control four relays 111 by battery management unit 24 lead-out terminals for precharge control circuit, high voltage power transmission control circuit and external charge circuit, 112,121,132 sequentially-operating completes, the interlocking of external charge relay and electrokinetic cell electric discharge relay is not set, if control logic mistake or relay adhesion appear in battery management unit, can cause when external charge, electric machine controller obtains electric rear drive vehicle operating and safety misadventure occurs.
2. on precharge control circuit, high voltage power transmission control circuit and external charge circuit, fuse is not set, when in circuit, electric current is excessive, cutoff circuit, can cause the components and parts such as electric machine controller, relay to burn out in time.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of power battery charging fender guard, occurs the problem of charged startup and the rear charging socket band high-tension current of outage while solving power battery charging.
The utility model provides a kind of power battery charging fender guard, comprises precharge control relay, main electric machine control relay, charging control relay and charge protection relay;
Described precharge control relay and main electric machine control relay are connected in the normalizing power supply, and described charging control relay and charge protection relay are connected in the low tension battery charge power supply;
Described charge protection relay for the coil of controlling described precharge control relay and main electric machine control relay under charge condition in off-position.
Preferably, described normalizing power supply, charge protection relay form the first relay feed circuit and the second relay feed circuit with described precharge control relay and described main electric machine control relay respectively.
Preferably, described charge protection relay is normally closed contact type relay, and described precharge control relay, main electric machine control relay, charging control relay are open contact type relay;
Under charge condition, described low tension battery charge power supply is to described charge protection relay and the power supply of charging control relay, and the contact of described charge protection relay is in off-state, and the coil of described charging control relay is in power-up state.
Under non-charge condition, the contact of described charge protection relay is in closure state, and the coil of described precharge control relay and main electric machine control relay is in power-up state, and the coil of described charging control relay is in off-position.
Preferably, described power battery charging fender guard also comprises battery management unit, and described low tension battery charge power supply and described battery management unit form charging and confirm circuit;
Described battery management unit, for receiving the described charging current by the input of low tension battery charge power supply, is controlled the contact of described charging control relay in closure state according to described charging current.
Preferably, the input end in the low tension battery charge power supply arranges the first fuse and charger assembled by several branch leakage resistance, described low tension battery charge power supply, the first fuse, charger assembled by several branch leakage resistance and battery management unit formation battery management unit feed circuit.
Preferably, described normalizing power supply and low tension battery charge power supply all are connected in described battery management unit, and under charge condition, described battery management unit receives the charging signals from described low tension battery charge power supply; Described normalizing power supply and low tension battery charge power supply are simultaneously to described battery management unit power supply.
Preferably, between normalizing power supply and described battery management unit and between low tension battery charge power supply and described battery management power supply, diode is being set respectively.
Preferably, pre-charge resistance and the second fuse are set between described precharge control relay and motor, described electrokinetic cell, pre-charge-relay, pre-charge resistance, the second fuse and motor form motor pretrigger circuit; Described electrokinetic cell, main electric machine control relay, the second fuse and motor form motor start circuit.
Under non-charge condition, the contact that described battery management unit is controlled described precharge control relay in closure state with the drive motor pretrigger; In described motor pretrigger, after one schedule time, described battery management unit is controlled the contact of described precharge control relay in off-state, and the contact of described main electric machine control relay starts with drive motor fully in closure state.
Preferably, the 3rd fuse is set between described charging control relay and high tension battery charge power supply; Under charge condition, the coil of described charging control relay is in power-up state; Described high tension battery charge power supply, the 3rd fuse, charging control relay and electrokinetic cell form the power battery charging circuit.
The power battery charging fender guard provided by the utility model; can realize when power battery charging; motor can not obtain electric work and make automobile starting, and then not there will be because starting automobile and pull apart charge power supply, the charged and potential safety hazard that causes of charging gang socket.
The accompanying drawing explanation
Fig. 1 is a kind of power-supplying circuit schematic diagram () with charge function in prior art;
Fig. 2 is a kind of power-supplying circuit schematic diagram (two) with charge function in prior art;
Fig. 3 is the schematic diagram of the utility model power battery charging fender guard embodiment.
The specific embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
With reference to Fig. 3, show the schematic diagram of a kind of power battery charging device of the utility model embodiment, comprise precharge control relay 101, main electric machine control relay 102, charging control relay 103 and charge protection relay 104, precharge control relay 101 and main electric machine control relay 102 are connected in normalizing power supply 105, charging control relay 103 and charge protection relay 104 are connected in low tension battery charge power supply 106, charge protection relay 104 for the coil of controlling precharge control relay 101 and main electric machine control relay 102 under charge condition in off-position.Wherein, the normalizing power supply is the power supply from the positive pole output of vehicle-mounted low tension battery.
The power battery charging fender guard provided by the utility model; can realize when power battery charging; motor can not obtain electric work and make automobile starting, and then not there will be because starting automobile and pull apart charge power supply, the charged and potential safety hazard that causes of charging gang socket.
Further, charge protection relay 104 is normally closed contact type relay, and precharge control relay 101, main electric machine control relay 102 and charging control relay 103 are open contact type relay.Normalizing power supply 105, charge protection relay 104 and precharge control relay 101 form the first relay feed circuit, and normalizing power supply 105, charge protection relay 104 and main electric machine control relay 102 form the second relay feed circuit.
Under charge condition; low tension battery charge power supply 106 is to charge protection relay 104 and 103 power supplies of charging control relay; the coil of charge protection relay 104 is in power-up state; make the contact of charge protection relay 104 in off-state; and then the coil that makes precharge control relay 101 and main electric machine control relay 102 is in off-position and can't drive motor work, and the coil of charging control relay 103 in power-up state to realize to power battery charging.
Concrete, between charging control relay 103 and high tension battery charge power supply 108, the 3rd fuse FU is set
3, under charge condition, by high tension battery charge power supply 108, the 3rd fuse FU
3, the power battery charging circuit that forms of charging control relay 103 and electrokinetic cell realizes to power battery charging.The 3rd fuse FU is set
3that electric current in order to prevent high tension battery charge power supply 108 input is excessive and cause the damage of components and parts in circuit.
Under non-charge condition; the coil of charge protection relay 104 is in off-position; make the contact of charge protection relay 104 in closure state; and then the coil that makes precharge control relay 101 and main electric machine control relay 102 in power-up state with drive motor work, and the coil of charging control relay 103 can't be realized to power battery charging in off-position.
Further, power battery charging fender guard of the present utility model also comprises battery management unit 100, and low tension battery charge power supply 106 and battery management unit 100 form charging and confirm circuit.Battery management unit 100 is for receiving the charging current by 106 inputs of low tension battery charge power supply, the contact of controlling charging control relay 103 according to the charging current that receives is in closure state with to power battery charging, and the contact of precharge control relay 101 and main electric machine control relay 102 is in off-state and can not drive motor work.Otherwise, when battery management unit 100 does not receive the charging current of being inputted by low tension battery charge power supply 106, the contact of controlling charging control relay 103 in off-state with can't be to power battery charging, and the contact of precharge control relay 101 and main electric machine control relay 102 in closure state with drive motor work.By the control of battery management unit, further guarantee that, when power battery charging, motor can not obtain electric driving and make Automobile drive.
Cause the damage of components and parts in circuit for the electric current that prevents low tension battery charge power supply 106 output is excessive, at the input end of low tension battery charge power supply 106, the first fuse FU is set
1with charger assembled by several branch leakage resistance R
1, low tension battery charge power supply 106, the first fuse FU
1, charger assembled by several branch leakage resistance R
1form the battery management unit feed circuit with battery management unit 100.Wherein, the first fuse R
1with charger assembled by several branch leakage resistance FU
1parameter can arrange according to size and the admissible size by normalizing power supply 105 received currents of battery management unit 100 of low tension battery charge power supply 106 outgoing currents.
In order to reduce the electric quantity consumption of normalizing power supply 105; normalizing power supply 105 and low tension battery charge power supply 106 all are connected in to battery management unit 100; under charge condition; battery management unit 100 receives the charging signals of being sent by low tension battery charge power supply 106, and normalizing power supply 105 and low tension battery charge power supply 106 are simultaneously to battery management unit 100 power supplies.Further, reaching, between low tension battery charge power supply 106 and battery management unit 100, diode D is being set respectively between normalizing power supply 105 and battery management unit 100
1and D
2, by diode D
1and D
2the one-way conduction effect, can avoid by the electric current of normalizing power supply 105 input with by the electric current phase mutual interference of low tension battery charge power supply 106 inputs, and then protection car when power battery charging can not drive.
Further, between precharge control relay 101 and drive motor 107 positive poles, pre-charge resistance R is set
2with the second fuse FU
2, electrokinetic cell, pre-charge-relay 101, pre-charge resistance R
2, the second fuse FU
2form motor pretrigger circuit, described electrokinetic cell, main electric machine control relay 102, the second fuse FU with motor 107
2form motor start circuit with motor.
Under non-charge condition, the contact that battery management unit 100 is controlled precharge control relay 101 is in closure state, and electrokinetic cell is by pre-charge-relay 101, pre-charge resistance R
2with the second fuse FU
2to motor 107 power supply so that motor 107 in pre-actuated state.
Wherein, pre-charge resistance R
2the resistance size according to the maximum current of rating of machine and electrokinetic cell output, arrange.Surge current in the time of can effectively reducing the motor pretrigger by pre-charge resistance R2, thus prevent from causing because electric current is excessive the damage of motor, and then extend the service life of motor.The second fuse FU2 be set be electric current in order to prevent the electrokinetic cell input excessive and cause the damage of components and parts in circuit.
In motor 107 pretriggers after one schedule time, be after the electric current of electrokinetic cell input tends towards stability, battery management unit 100 is controlled the contact of precharge control relays 101 in off-state, the contact of main electric machine control relay 102 in closure state so that motor 107 start fully with in the pulsation-free running state.
Each embodiment in this specification sheets all adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that between each embodiment, identical similar part is mutually referring to getting final product.
The above charge protection device to a kind of electrokinetic cell provided by the utility model is described in detail, applied specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof; , for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model simultaneously.
Claims (10)
1. a power battery charging fender guard, is characterized in that, comprises precharge control relay, main electric machine control relay, charging control relay and charge protection relay;
Described precharge control relay and main electric machine control relay are connected in the normalizing power supply, and described charging control relay and charge protection relay are connected in the low tension battery charge power supply;
Described charge protection relay for the coil of controlling described precharge control relay and main electric machine control relay under charge condition in off-position.
2. device as claimed in claim 1, is characterized in that, described normalizing power supply, charge protection relay form the first relay feed circuit and the second relay feed circuit with described precharge control relay and described main electric machine control relay respectively.
3. device as claimed in claim 2, is characterized in that, described charge protection relay is normally closed contact type relay, and described precharge control relay, main electric machine control relay, charging control relay are open contact type relay;
Under charge condition, described low tension battery charge power supply is to described charge protection relay and the power supply of charging control relay, and the contact of described charge protection relay is in off-state, and the coil of described charging control relay is in power-up state.
4. device as claimed in claim 3; it is characterized in that; under non-charge condition; the contact of described charge protection relay is in closure state; the coil of described precharge control relay and main electric machine control relay is in power-up state, and the coil of described charging control relay is in off-position.
5. device as claimed in claim 1, is characterized in that, also comprises battery management unit, and described low tension battery charge power supply and described battery management unit form charging and confirm circuit;
Described battery management unit, for receiving the described charging current by the input of low tension battery charge power supply, is controlled the contact of described charging control relay in closure state according to described charging current.
6. device as claimed in claim 1, is characterized in that, also comprises battery management unit;
Input end in the low tension battery charge power supply arranges the first fuse and charger assembled by several branch leakage resistance, and described low tension battery charge power supply, the first fuse, charger assembled by several branch leakage resistance and battery management unit form the battery management unit feed circuit.
7. device as claimed in claim 1, is characterized in that, also comprises battery management unit, and described normalizing power supply and low tension battery charge power supply all are connected in described battery management unit;
Under charge condition, described battery management unit receives the charging signals from described low tension battery charge power supply; Described normalizing power supply and low tension battery charge power supply are simultaneously to described battery management unit power supply.
8. device as claimed in claim 7, is characterized in that, between normalizing power supply and described battery management unit and between low tension battery charge power supply and described battery management power supply, diode is being set respectively.
9. device as claimed in claim 1, is characterized in that, also comprises battery management unit;
Pre-charge resistance and the second fuse are set between described precharge control relay and motor, and described electrokinetic cell, pre-charge-relay, pre-charge resistance, the second fuse and motor form motor pretrigger circuit;
Described electrokinetic cell, main electric machine control relay, the second fuse and motor form motor start circuit;
Under non-charge condition, the contact that described battery management unit is controlled described precharge control relay in closure state with the drive motor pretrigger;
In described motor pretrigger, after one schedule time, described battery management unit is controlled the contact of described precharge control relay in off-state, and the contact of described main electric machine control relay starts with drive motor fully in closure state.
10. device as claimed in claim 1, is characterized in that, the 3rd fuse is set between described charging control relay and high tension battery charge power supply;
Under charge condition, the coil of described charging control relay is in power-up state;
Described high tension battery charge power supply, the 3rd fuse, charging control relay and electrokinetic cell form the power battery charging circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320292391XU CN203331864U (en) | 2013-05-24 | 2013-05-24 | Power battery charging protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320292391XU CN203331864U (en) | 2013-05-24 | 2013-05-24 | Power battery charging protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203331864U true CN203331864U (en) | 2013-12-11 |
Family
ID=49700561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320292391XU Withdrawn - After Issue CN203331864U (en) | 2013-05-24 | 2013-05-24 | Power battery charging protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203331864U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103287282A (en) * | 2013-05-24 | 2013-09-11 | 潍柴动力股份有限公司 | Power battery charging protection device |
| CN108521151A (en) * | 2017-10-20 | 2018-09-11 | 威盛电子股份有限公司 | Starting device of battery management circuit and battery management system with same |
| CN111146769A (en) * | 2018-11-02 | 2020-05-12 | 丰田自动车株式会社 | Power circuit protection device |
| US11031803B2 (en) | 2017-10-20 | 2021-06-08 | Via Labs, Inc. | Start-up apparatus for battery management circuit and battery management system having the same |
-
2013
- 2013-05-24 CN CN201320292391XU patent/CN203331864U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103287282A (en) * | 2013-05-24 | 2013-09-11 | 潍柴动力股份有限公司 | Power battery charging protection device |
| CN103287282B (en) * | 2013-05-24 | 2015-11-18 | 潍柴动力股份有限公司 | A kind of power battery charging fender guard |
| CN108521151A (en) * | 2017-10-20 | 2018-09-11 | 威盛电子股份有限公司 | Starting device of battery management circuit and battery management system with same |
| CN108521151B (en) * | 2017-10-20 | 2020-12-08 | 威锋电子股份有限公司 | Starting device of battery management circuit and battery management system with same |
| US11031803B2 (en) | 2017-10-20 | 2021-06-08 | Via Labs, Inc. | Start-up apparatus for battery management circuit and battery management system having the same |
| CN111146769A (en) * | 2018-11-02 | 2020-05-12 | 丰田自动车株式会社 | Power circuit protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131211 Effective date of abandoning: 20151118 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |