CN206856507U - A kind of voltage distribution structure of electronic logistic car - Google Patents
A kind of voltage distribution structure of electronic logistic car Download PDFInfo
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- CN206856507U CN206856507U CN201720698270.3U CN201720698270U CN206856507U CN 206856507 U CN206856507 U CN 206856507U CN 201720698270 U CN201720698270 U CN 201720698270U CN 206856507 U CN206856507 U CN 206856507U
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- fuse
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- ptc
- output interface
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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 utility model discloses a kind of voltage distribution structure of electronic logistic car, the high-voltaghe compartment of fuse, contactor, preliminary filling resistance, discharge circuit and Hall current sensor is installed including inside, the input node being connected with battery case is provided with high-voltaghe compartment, the charging inlet being connected with Vehicular charger, DC charging motor, the high voltage electric device output interface being connected with three-in-one power supply, PTC, air-conditioning, electric machine controller；High voltage electric device is formed into loop using cable or copper bar；Discharge circuit discharges rapidly after motor stopping；Hall current sensor measures the operating current of electrokinetic cell, current anomaly alarm in real time.The utility model high-voltaghe compartment is reasonable in design, arrange relay and correctly select capacity fuse and the position relationship of fuse and relay, high-tension electricity device is rationally effectively arranged in circuit, reduce changeable circuit lack of standardization, the high voltage distribution specification of electronic logistic car.
Description
Technical field
A kind of voltage distribution structure of electronic logistic car is the utility model is related to, belongs to electric automobile manufacturing technology field.
Background technology
Atmosphere pollution and energy crisis along with getting worse, new-energy automobile turn into the focus studied both at home and abroad.
Under the fast-developing surging pulling of ecommerce, China's electric business logistics continues to keep rapid growth, and van-type logistic car suddenly becomes
Maximum special purpose vehicle requirement product, there is travel route to be relatively fixed, be less demanding to course continuation mileage for logistic car, frequency of use
The features such as higher, more matched with the characteristic of pure electronic logistic car.But the design voltage distribution of electronic logistic car is deposited at this stage
In un-reasonable phenomenon, more common has：More relays, few relay, fuse type selecting be lack of standardization, each electrical appliance is that this is placed on
Before total positive contactor or after total positive contactor etc..
Utility model content
The utility model purpose is solve above mentioned problem of the prior art, there is provided a kind of voltage of electronic logistic car point
Distribution structure.
To reach above-mentioned purpose, used technological means is the utility model：A kind of voltage distribution of electronic logistic car
Structure, including the internal high-voltaghe compartment for being provided with fuse, contactor, preliminary filling resistance, discharge circuit and Hall current sensor are high
The input node being connected with battery case is provided with pressure case, the charging inlet being connected with Vehicular charger, DC charging motor, with three
Unify power supply, PTC, air-conditioning, the high voltage electric device output interface of electric machine controller connection；High voltage electric device is used into cable or copper
Row forms loop；Discharge circuit discharges rapidly after motor stopping；Hall current sensor measures the work of electrokinetic cell in real time
Electric current, operating current send fault alarm extremely.
Further, fuse includes total fuse FU3, heater fuse FU9, fast charge fuse in the high-voltaghe compartment
FU4, vehicle-mounted charge fuse FU5, three-in-one main fuse FU6, air-conditioning fuse FU7, PTC fuse FU8；
Contactor includes total positive contactor KM1, also contacts device KM8, fast charge contactor KM4, vehicle-mounted charge contactor
KM5, preliminary filling contactor KM3, always air conditioning contact KM6, PTC contactor KM7, negative contactor KM2；
Input node is the total positive node of high input voltage and the total negative nodal point of high input voltage, and total fuse FU3 one end connects high pressure
Input total positive node, other end connection heater fuse FU9, fast charge contactor KM4, vehicle-mounted charge contactor KM5, precharge
Hinder R1 and total positive contactor KM1 one end；The heater fuse FU9 other ends connect also contacts device KM8, also contacts device
The positive pole of KM8 other end connection heater；Fast charge contactor KM4 other end connection fast charge fuse FU4, fast charge fuse
The charging inlet cathode node of FU4 other end connection DC charging motor；Vehicle-mounted charge contactor KM5 other end connection is vehicle-mounted
Charge fuse FU5, the charging inlet cathode node of vehicle-mounted charge fuse FU5 other end connection Vehicular charger；Preliminary filling
Resistance R1 other end connection preliminary filling contactor KM3, the other end of the preliminary filling contactor KM3 other end and total positive contactor KM1
It is connected；The total positive contactor KM1 other end is also connected with three-in-one main fuse FU6, air-conditioning fuse FU7, PTC fuse
FU8, electric machine controller electric machine controller output interface cathode node, and diode D1 positive pole, diode D1 negative pole
Connect discharge resistance R2；The three-in-one main fuse FU6 other end connects three-in-one power output interface cathode node；Air-conditioning
Fuse the FU7 other end connection air conditioning contact KM6, air conditioning contact KM6 other end connection air-conditioning output interface positive pole
Node；PTC fuses FU8 other end connection PTC contactors KM7, PTC contactor KM7 other end connection PTC output interfaces
Cathode node；
The total negative nodal point connection Hall current sensor of high input voltage, the total negative contact of other end connection of Hall current sensor
Device KM2, the total negative contactor KM2 other end and the negative pole of heater, DC charging motor charging inlet negative pole node, vehicle-mounted fill
The charging inlet negative pole node of motor, three-in-one power output interface negative pole node, air-conditioning output interface negative pole node, PTC are defeated
Outgoing interface negative pole node, electric machine controller output interface negative pole node, and the discharge resistance R2 other end are connected.
The amount of capacity of the fuse determines according to electrical load power consumption, and according to loaded work piece principle and function
It is required that carrying out load distribution, determine the protected mode of circuit and determine the capacity always insured, the current strength of electrical equipment calculates
Formula is： I=P/UN, P bearing powers, watt；UNRated voltage, volt；
When using fuse protection circuit at normal temperatures, the volume of fuse is selected according to per maximum operating currenbt all the way
Determine electric current, its relational expression is：IN=IMAX/ 0.7, INFuse rated current, ampere；IMAXLoad maximum current, ampere.
The utility model beneficial effect is：High-voltaghe compartment and its interface are reasonably designed according to high voltage electric device, reasonably
Relay is arranged, and correctly selects the capacity of fuse, the position relationship of fuse and relay is designed, closes high-tension electricity device
The effective arrangement of reason in circuit, reduces changeable and nonstandard circuit, the high voltage distribution of the electronic logistic car of specification.
Brief description of the drawings
The utility model is further elaborated with reference to the accompanying drawings and examples.
Fig. 1 circuit connections of the present utility model and layout drawing；
Fig. 2 logistic car high-tension electricity connection diagrams of the present utility model.
Embodiment
As shown in Figure 1, 2, a kind of high-tension electricity distribution method of electronic logistic car, including inside are provided with fuse, contact
Device, preliminary filling resistance, the high-voltaghe compartment of discharge circuit and Hall current sensor, the input being connected with battery case is provided with high-voltaghe compartment
Node, the charging inlet being connected with Vehicular charger, DC charging motor, connect with three-in-one power supply, PTC, air-conditioning, electric machine controller
The high voltage electric device output interface connect；High voltage electric device is formed into loop, fuse protection circuit using cable or copper bar；Contact
Device realizes Small current control high current；Discharge circuit discharges rapidly after motor stopping, makes circuit stability；Hall current sensor
The operating current of measurement electrokinetic cell, operating current will send fault alarm extremely in real time.
Fuse includes total fuse FU3, heater fuse FU9, fast charge fuse FU4, vehicle-mounted in the high-voltaghe compartment
Charge fuse FU5, three-in-one main fuse FU6, air-conditioning fuse FU7, PTC fuse FU8；
Contactor includes total positive contactor KM1, also contacts device KM8, fast charge contactor KM4, vehicle-mounted charge contactor
KM5, preliminary filling contactor KM3, always air conditioning contact KM6, PTC contactor KM7, negative contactor KM2；
Input node is the total positive node of high input voltage and the total negative nodal point of high input voltage, and total fuse FU3 one end connects high pressure
Input total positive node, other end connection heater fuse FU9, fast charge contactor KM4, vehicle-mounted charge contactor KM5, precharge
Hinder R1 and total positive contactor KM1 one end；The heater fuse FU9 other ends connect also contacts device KM8, also contacts device
The positive pole of KM8 other end connection heater；Fast charge contactor KM4 other end connection fast charge fuse FU4, fast charge fuse
The charging inlet cathode node of FU4 other end connection DC charging motor；Vehicle-mounted charge contactor KM5 other end connection is vehicle-mounted
Charge fuse FU5, the charging inlet cathode node of vehicle-mounted charge fuse FU5 other end connection Vehicular charger；Preliminary filling
Resistance R1 other end connection preliminary filling contactor KM3, the other end of the preliminary filling contactor KM3 other end and total positive contactor KM1
It is connected；The total positive contactor KM1 other end is also connected with three-in-one main fuse FU6, air-conditioning fuse FU7, PTC fuse
FU8, electric machine controller electric machine controller output interface cathode node, and diode D1 positive pole, diode D1 negative pole
Connect discharge resistance R2；The three-in-one main fuse FU6 other end connects three-in-one power output interface cathode node；Air-conditioning
Fuse the FU7 other end connection air conditioning contact KM6, air conditioning contact KM6 other end connection air-conditioning output interface positive pole
Node；PTC fuses FU8 other end connection PTC contactors KM7, PTC contactor KM7 other end connection PTC output interfaces
Cathode node；
The total negative nodal point connection Hall current sensor of high input voltage, the total negative contact of other end connection of Hall current sensor
Device KM2, the total negative contactor KM2 other end and the negative pole of heater, DC charging motor charging inlet negative pole node, vehicle-mounted fill
The charging inlet negative pole node of motor, three-in-one power output interface negative pole node, air-conditioning output interface negative pole node, PTC are defeated
Outgoing interface negative pole node, electric machine controller output interface negative pole node, and the discharge resistance R2 other end are connected.
The amount of capacity of the fuse determines according to electrical load power consumption, and according to loaded work piece principle and function
It is required that carrying out load distribution, determine the protected mode of circuit and determine the capacity always insured, the current strength of electrical equipment calculates
Formula is： I=P/UN, P bearing powers, watt；UNRated voltage, volt；
When using fuse protection circuit at normal temperatures, the volume of fuse is selected according to per maximum operating currenbt all the way
Determine electric current, its relational expression is：IN=IMAX/ 0.7, INFuse rated current, ampere；IMAXLoad maximum current, ampere.
The general thought of circuit arrangement is that electric current first passes through fuse, then by contactor, finally to electrical appliance, still,
DC charging motor and Vehicular charger this two-way sense of current, prior art can put back the position of contactor and fuse, and
Electric current is to flow to battery by charger, so position is just the opposite.
For the sake of security, electrical appliance can be placed on behind total positive contactor by prior art, still, due to DC charging
Machine and Vehicular charger will give power battery charging in the case where total positive contactor disconnects, thus the application straight will fill with
Vehicular charger is placed on before main positive contactor, and in the area of cold, heater is when vehicle is not actuated, is heated to battery
, so the control of heater is placed on before total positive contactor.
The electric machine controller load of battery institute band, there is larger electric capacity C front end, in cold start, without electricity on electric capacity C
Lotus or only very low residual voltage, when without preliminary filling resistance, always just, always negative contactor and electric capacity C are connected, now cell voltage
U has more than 300V high pressures, and voltage is close to 0 on load capacitance C, and equivalent to instantaneous short circuit, load resistance is only wire and connect
The resistance of tentaculum contact, generally much smaller than 20m Ω.Calculated by according to Ohm's law, loop resistance by 20m Ω, U and VC pressure differences are pressed
300V is calculated, immediate current I=300/0.02=15000A.This necessarily causes total positive and negative contactor damage, adds preliminary filling resistance
Afterwards, total positive contactor first disconnects, and allows the larger preliminary filling contactor of impedance first to be connected with the preliminary filling electrical circuit that preliminary filling resistance is formed, when
When precharging circuit works, the voltage VC more and more highers on load capacitance C（Pre-charge current is less and less）, when close to cell voltage
During U, precharging circuit is cut off, connects main positive contactor, there is no heavy current impact circuit.
It is 20 Ω to 100 Ω to be typically chosen preliminary filling resistance, as preliminary filling resistance selection 50 Ω, U and VC pressure difference still press 300V
Calculate, in connection in a flash, flow through maximum current I=300/50=6A that preliminary filling electrical circuit enters electric capacity C.Select preliminary filling relay
Capacity is 10A, so preliminary filling loop is safe.Because discharge resistance resistance is larger, electric current is influenceed in circuit normal work can
To ignore, discharge resistance makes electric energy consume rapidly after motor stopping, and increasing diode in discharge circuit prevents current reflux,
Make circuit stability.In order to avoid the too fast action of contactor causes contactor to stick together failure, thus it is total just, it is total it is negative, directly fill
Contactor selects the contactor with feedback signal.
The utility model reasonably designs high-voltaghe compartment and its interface according to high voltage electric device, reasonably arranges relay, and
The capacity of correct selection fuse, designs the position relationship of fuse and relay, high-tension electricity device is rationally effectively arranged
In circuit, changeable and nonstandard circuit, the high voltage distribution of the electronic logistic car of specification are reduced.
It is described above, only specific embodiment of the present utility model, it is not limited to this, it is any to be familiar with the art
Technical staff in the technical scope that the utility model discloses, change or replacement can be readily occurred in, should all be covered in this practicality
Within new protection domain.
Claims (3)
1. a kind of voltage distribution structure of electronic logistic car, including inside are provided with fuse, contactor, preliminary filling resistance, electric discharge
The high-voltaghe compartment of circuit and Hall current sensor, the input node being connected with battery case is provided with high-voltaghe compartment, with vehicle-mounted charge
Machine, the charging inlet of DC charging motor connection, the high voltage electric device being connected with three-in-one power supply, PTC, air-conditioning, electric machine controller
Output interface；High voltage electric device is formed into loop using cable or copper bar；Discharge circuit discharges rapidly after motor stopping；Hall
Current sensor measures the operating current of electrokinetic cell in real time, and operating current sends fault alarm extremely.
2. the voltage distribution structure of electronic logistic car according to claim 1, it is characterised in that：Fused in the high-voltaghe compartment
Device includes total fuse FU3, heater fuse FU9, fast charge fuse FU4, vehicle-mounted charge fuse FU5, three-in-one power supply
Fuse FU6, air-conditioning fuse FU7, PTC fuse FU8；
Contactor includes total positive contactor KM1, also contacts device KM8, fast charge contactor KM4, vehicle-mounted charge contactor KM5, pre-
Fill contactor KM3, always air conditioning contact KM6, PTC contactor KM7, negative contactor KM2；
Input node is the total positive node of high input voltage and the total negative nodal point of high input voltage, and total fuse FU3 one end connects high input voltage
Total positive node, other end connection heater fuse FU9, fast charge contactor KM4, vehicle-mounted charge contactor KM5, preliminary filling resistance R1
With total positive contactor KM1 one end；The heater fuse FU9 other ends connect also contacts device KM8, also contacts device KM8's
The other end connects the positive pole of heater；Fast charge contactor KM4 other end connection fast charge fuse FU4, fast charge fuse FU4's
The other end connects the charging inlet cathode node of DC charging motor；Vehicle-mounted charge contactor KM5 other end connection vehicle-mounted charge
The charging inlet cathode node of fuse FU5, vehicle-mounted charge fuse FU5 other end connection Vehicular charger；Preliminary filling resistance
R1 other end connection preliminary filling contactor KM3, the preliminary filling contactor KM3 other end are connected with the total positive contactor KM1 other end；
The total positive contactor KM1 other end is also connected with three-in-one main fuse FU6, air-conditioning fuse FU7, PTC fuse FU8, electricity
The electric machine controller output interface cathode node of machine controller, and diode D1 positive pole, diode D1 negative pole connection are put
Resistance R2；The three-in-one main fuse FU6 other end connects three-in-one power output interface cathode node；Air-conditioning fuse
The FU7 other end connection air conditioning contact KM6, air conditioning contact KM6 other end connection air-conditioning output interface cathode node；
PTC fuses FU8 other end connection PTC contactors KM7, PTC contactor KM7 other end connection PTC output interface positive poles
Node；
Contactor is always born in the total negative nodal point connection Hall current sensor of high input voltage, the other end connection of Hall current sensor
KM2, the total negative contactor KM2 other end and negative pole, charging inlet negative pole node, the vehicle-mounted charge of DC charging motor of heater
The charging inlet negative pole node of machine, three-in-one power output interface negative pole node, air-conditioning output interface negative pole node, PTC outputs
Interface negative pole node, electric machine controller output interface negative pole node, and the discharge resistance R2 other end are connected.
3. the voltage distribution structure of electronic logistic car according to claim 2, it is characterised in that：The preliminary filling resistance R1 is
The Ω of 20 Ω~100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720698270.3U CN206856507U (en) | 2017-06-15 | 2017-06-15 | A kind of voltage distribution structure of electronic logistic car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720698270.3U CN206856507U (en) | 2017-06-15 | 2017-06-15 | A kind of voltage distribution structure of electronic logistic car |
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| Publication Number | Publication Date |
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| CN206856507U true CN206856507U (en) | 2018-01-09 |
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| CN201720698270.3U Active CN206856507U (en) | 2017-06-15 | 2017-06-15 | A kind of voltage distribution structure of electronic logistic car |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601130A (en) * | 2019-09-26 | 2019-12-20 | 温州丰迪接插件有限公司 | Composite busbar of vehicle-mounted controller |
-
2017
- 2017-06-15 CN CN201720698270.3U patent/CN206856507U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601130A (en) * | 2019-09-26 | 2019-12-20 | 温州丰迪接插件有限公司 | Composite busbar of vehicle-mounted controller |
| WO2021056774A1 (en) * | 2019-09-26 | 2021-04-01 | 温州丰迪接插件有限公司 | Composite busbar of vehicle-mounted controller |
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