CN206826417U - A kind of safety return circuit for prototype version electric car - Google Patents
A kind of safety return circuit for prototype version electric car Download PDFInfo
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- CN206826417U CN206826417U CN201720617973.9U CN201720617973U CN206826417U CN 206826417 U CN206826417 U CN 206826417U CN 201720617973 U CN201720617973 U CN 201720617973U CN 206826417 U CN206826417 U CN 206826417U
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- relay
- return circuit
- positive pole
- switch
- safety return
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Abstract
The utility model discloses a kind of safety return circuit for prototype version electric car, including electrokinetic cell, motor, electric machine controller, control system main switch, battery management system, drive system main switch, braking reliability device, brake overtravel switch, inertia switch, emergency stop switch, high pressure emergency disconnects device, low-tension supply, insulation monitoring and warning device, positive pole insulation relay is set in the electrokinetic cell, negative insulation relay, the positive pole of the low-tension supply is sequentially connected in series control system main switch, the high pressure emergency disconnects the low-pressure end of device, drive system main switch, braking reliability device, brake overtravel switch, inertia switch, emergency stop switch, insulate relay with positive pole respectively after insulation monitoring and warning device, negative insulation Control connects.The utility model can disconnect when there are any one related abnormal conditions electrokinetic cell output, motor emergent stopping, reach the purpose of protection driver, passenger and pedestrains safety.
Description
Technical field
Automotive field is the utility model is related to, more particularly to a kind of safety return circuit for prototype version electric car.
Background technology
With the enhancing of people's environmental consciousness, the use of electric automobile is more and more, and the development of electric automobile is also increasingly
Greatly, many electric passenger vehicles enter market sale, wherein main energy sources of the high voltage power supply as electric automobile at present
Source, high-voltage safety problem is the problem of electric automobile is inevitable, and prototype version electric car is as a kind of special electronic vapour
Car, its security reliability have compared that electric passenger vehicle is smaller, therefore how to improve the security reliability of prototype version electric car, protect
The safety of driver, passenger and pedestrian, turn into prototype version electric car urgent problem.
Utility model content
The purpose of this utility model, be in order to solve when prototype version electric automobile breaks down how fast shut-off power
The problem of power supply, the utility model provide a kind of safety return circuit for prototype version electric car.
The purpose of this utility model can be by taking following scheme to realize：
A kind of safety return circuit for prototype version electric car, including the electrokinetic cell of circuit connection, motor, motor control
Device processed, in addition to：Control system main switch, battery management system, drive system main switch, braking reliability device, braking are super
Travel switch, inertia switch, emergency stop switch, high pressure emergency disconnect device, low-tension supply, insulation monitoring and warning device, described high pressure
The high-pressure side of emergency tripping device is serially connected on the circuit between the anode of electrokinetic cell and electric machine controller, the power
Positive pole insulation relay, the negative insulation relay for connecting anode and GND respectively are set in battery, and described is low
The positive pole of voltage source is sequentially connected in series control system main switch by circuit, described high pressure emergency disconnects the low-pressure end of device, drives
Divide after dynamic system main switch, braking reliability device, braking overtravel switch, inertia switch, emergency stop switch, insulation monitoring and warning device
It is not connected with positive pole insulation relay, negative insulation Control；The power end connection control of described battery management system
System main switch output end, control terminal are connected with positive pole insulation relay, negative insulation Control respectively by circuit.
Further, when electrokinetic cell or battery management system irregular working, the battery management system is used for
Safety return circuit is disconnected, is disconnected the insulation of the positive pole in electrokinetic cell relay, negative insulation relay.
Further, when dynamic braking used for electric vehicle and the non-locking of wheel and positive electrode current are flowed out from electric machine controller
When, braking reliability device is used to disconnect safety return circuit, makes positive pole insulation relay, negative insulation relay in electrokinetic cell
It is disconnected.
Further, when brake system non-functional occurs in electric automobile, the braking at a certain distance from from brake pedal
Overtravel switch will be triggered and disconnect safety return circuit, make positive pole insulation relay, negative insulation relay in electrokinetic cell
It is disconnected.
Further, when electric automobile collides, inertia switch will be triggered and disconnect safety return circuit, make power electric
Positive pole insulation relay, negative insulation relay in pond are disconnected.
Further, when emergency stop switch is pressed, safety return circuit will be switched off, the insulation of positive pole in the electrokinetic cell after
Electrical equipment, negative insulation relay are disconnected.
Further, when high pressure, which disconnects device, to be removed, safety return circuit will be switched off, the insulation of positive pole in electrokinetic cell after
Electrical equipment, negative insulation relay are disconnected.
Further, when insulation monitoring and warning device detects the insulated electro associated with maximum nominal drive system operating voltage
Resistance is when being less than 500 Ω/V or faults itself, and insulation monitoring and warning device will be switched off safety return circuit, and the positive pole in the electrokinetic cell 1 is exhausted
Edge relay, negative insulation relay are disconnected.
Further, when positive pole insulation relay, negative insulation relay are disconnected, the output of the electrokinetic cell is broken
Open, the power input of the electric machine controller is cut off, motor emergent stopping.
Further, the quantity of described emergency stop switch be three, be separately positioned on the vehicle body both sides after driver's cockpit and
The position for facilitating driver to be touched when being in any sitting posture in cockpit, three emergency stop switch are in series by circuit, when appoint
When one emergency stop switch of meaning is pressed, you can by disconnecting safety return circuit by positive pole insulation relay, the negative pole in electrokinetic cell
The relay that insulate disconnects.
Compared with prior art, the beneficial effects of the utility model are：
1. the utility model ensures that energy horse back cutoff high is defeated when prototype version electric car breaks down by safety return circuit
Go out, ensure the safety of passenger and pedestrian, increase substantially the security of prototype version electric car.
2. the utility model realizes the output of low-voltage safety circuit controls high-tension battery by using insulation relay, enter
One step improves the security of prototype version electric car.
3. the utility model arrangement is simple, security reliability is strong.
Brief description of the drawings
Fig. 1 is the safety return circuit structural representation of the utility model embodiment.
In figure：1-electrokinetic cell, 2-control system main switch, 3-battery management system, 4-drive system main switch,
5-braking reliability device, 6-braking overtravel switch, 7-inertia switch, 8-emergency stop switch, 9-high pressure disconnection device,
10-motor, 11-electric machine controller, 12-negative battery insulation relay, 13-positive battery insulation relay,
14-GND, 15-anode, 16-low-tension supply, 17-insulation monitoring and warning device.
Embodiment
Purpose of utility model of the present utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings,
Embodiment can not repeat one by one herein, but therefore embodiment of the present utility model is not defined in following examples.
As shown in Figure 1, a kind of safety return circuit for prototype version electric car, including the electrokinetic cell 1 of circuit connection, drive
Dynamic motor 10, electric machine controller 11, in addition to：Control system main switch 2, battery management system 3, drive system main switch 4, system
Dynamic reliability devices 5, braking overtravel switch 6, inertia switch 7, emergency stop switch 8, high pressure emergency disconnect device 9, low-tension supply
16th, insulation monitoring and warning device 17, the high-pressure side of described high pressure emergency disconnection device 9 are serially connected in the anode 15 of electrokinetic cell 1
Set on circuit between electric machine controller 11, in the electrokinetic cell 1 and be sequentially connected anode 15 and GND 14
Positive pole insulation relay 13, negative insulation relay 12, the positive pole of described low-tension supply 16 is sequentially connected in series control by circuit
System main switch 2 processed, described high pressure emergency disconnect low-pressure end, drive system main switch 4, the braking reliability device of device 9
5th, brake overtravel switch 6, inertia switch 7, emergency stop switch 8, after insulation monitoring and warning device 17 respectively with positive pole insulation relay 13,
The control connection of negative insulation relay 12；The power end connection control system main switch 2 of described battery management system 3 exports
End, control terminal are connected with positive pole insulation relay 13, the control of negative insulation relay 12 respectively by circuit.
When electric automobile to be used, control system main switch 2 is closed first, now, battery management system 3 starts work
Make, it will carry out the detection of electrokinetic cell state and its system in itself, then again close drive system main switch 4, if now
Whole vehicle state is normal, then the safety return circuit controlled by low-tension supply 16 closes, the positive battery insulation relay in electrokinetic cell 1
13rd, negative battery insulation relay 12 will close, and electrokinetic cell 1 will be from anode 15, GND 14 to electric machine controller
11 power supplies, motor 10 is by normal work.
When 3 irregular working of electrokinetic cell 1 or battery management system, the battery management system 3, which is used to disconnect, pacifies
Full loop, it is disconnected the insulation of the positive pole in electrokinetic cell 1 relay 13, negative insulation relay 12.
When dynamic braking used for electric vehicle and the non-locking of wheel and positive electrode current（The electric current for driving automobile to advance）From motor
When controller 11 flows out, braking reliability device 5 is used to disconnect safety return circuit, makes the positive pole insulation relay in electrokinetic cell 1
13rd, negative insulation relay 12 is disconnected.
When there is brake system non-functional in electric automobile, the braking overtravel switch at a certain distance from from brake pedal
6 will be triggered and disconnect safety return circuit, the insulation of the positive pole in electrokinetic cell 1 relay 13, negative insulation relay 12 is broken
Open.
When electric automobile collides, inertia switch 7 will be triggered and disconnect safety return circuit, make in electrokinetic cell 1
Positive pole insulation relay 13, negative insulation relay 12 are disconnected.
When emergency stop switch 8 is pressed, safety return circuit will be switched off, positive pole in the electrokinetic cell 1 insulation relay 13,
Negative insulation relay 12 is disconnected.
When high pressure, which disconnects device 9, to be removed, safety return circuit will be switched off, positive pole in electrokinetic cell 1 insulation relay 13,
Negative insulation relay 12 is disconnected.
When insulation monitoring and warning device 17 detects that the insulaion resistance associated with maximum nominal drive system operating voltage is less than
500 Ω/V or during faults itself, insulation monitoring and warning device 17 will be switched off safety return circuit, the positive pole insulation in the electrokinetic cell 1 after
Electrical equipment 13, negative insulation relay 12 are disconnected.
When there is the above situation, positive pole insulation relay 13, negative insulation relay 12 are disconnected, the power electric
The output in pond 1 is disconnected, and the power input of the electric machine controller 11 is cut off, the emergent stopping of motor 10.
In the present embodiment, the quantity of described emergency stop switch 8 is three, is separately positioned on the vehicle body both sides after driver's cockpit
And the position for facilitating driver to be touched when being in any sitting posture in cockpit, three emergency stop switch 8 are in series by circuit, when
When any one emergency stop switch 8 is pressed, you can by disconnecting safety return circuit by the positive pole insulation relay in electrokinetic cell 1
13rd, negative insulation relay 12 disconnects.
In summary, when occur controlling or drive system main switch disconnect, battery management system 3 detect power failure or
Faults itself, high pressure emergency disconnect device 9 and are removed, are flowed out, braked from electric machine controller 11 with dynamic braking and positive electrode current
Overtravel switch 6 or inertia switch 7 or emergency stop switch 8 is triggered, insulation monitoring and warning device 17 detects insulation fault or die certainly
During any one when barrier, safety return circuit will be all disconnected so that positive and negative electrode insulation relay disconnects, electrokinetic cell
Output disconnects, motor emergent stopping, ensures the safety of passenger and pedestrian, increases substantially the safety of prototype version electric car
Property.
Above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and is not
Restriction to embodiment of the present utility model.For those of ordinary skill in the field, on the basis of described above
On can also make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.
All made within spirit of the present utility model and principle all any modification, equivalent and improvement etc., should be included in this reality
Within new scope of the claims.
Claims (10)
1. a kind of safety return circuit for prototype version electric car, include the electrokinetic cell of circuit connection（1）, motor（10）、
Electric machine controller（11）, it is characterised in that：Also include：Control system main switch（2）, battery management system（3）, drive system master
Switch（4）, braking reliability device（5）, braking overtravel switch（6）, inertia switch（7）, emergency stop switch（8）, high pressure emergency
Disconnect device（9）, low-tension supply（16）, insulation monitoring and warning device（17）, described high pressure emergency disconnects device（9）High-pressure side string
It is connected on electrokinetic cell（1）Anode（15）With electric machine controller（11）Between circuit on, the electrokinetic cell（1）Inside set
Put and be sequentially connected anode（15）And GND（14）Positive pole insulation relay（13）, negative insulation relay（12）,
Described low-tension supply（16）Positive pole control system main switch is sequentially connected in series by circuit（2）, described high pressure emergency disconnects
Device（9）Low-pressure end, drive system main switch（4）, braking reliability device（5）, braking overtravel switch（6）, inertia opens
Close（7）, emergency stop switch（8）, insulation monitoring and warning device（17）Insulate relay with positive pole respectively afterwards（13）, negative insulation relay
（12）Control connection；Described battery management system（3）Power end connection control system main switch（2）Output end, control terminal
By circuit respectively with positive pole insulate relay（13）, negative insulation relay（12）Control connection.
2. the safety return circuit according to claim 1 for prototype version electric car, it is characterised in that：Work as electrokinetic cell（1）
Or battery management system（3）During irregular working, the battery management system（3）For disconnecting safety return circuit, make power electric
Pond（1）Interior positive pole insulation relay（13）, negative insulation relay（12）It is disconnected.
3. the safety return circuit according to claim 1 for prototype version electric car, it is characterised in that：When electric automobile is exerted oneself
Braking and the non-locking of wheel and positive electrode current are from electric machine controller（11）During outflow, braking reliability device（5）For disconnecting
Safety return circuit, make electrokinetic cell（1）Interior positive pole insulation relay（13）, negative insulation relay（12）It is disconnected.
4. the safety return circuit according to claim 1 for prototype version electric car, it is characterised in that：When electric automobile occurs
During brake system non-functional, the braking overtravel switch at a certain distance from from brake pedal（6）It will be triggered and disconnect safety
Loop, make electrokinetic cell（1）Interior positive pole insulation relay（13）, negative insulation relay（12）It is disconnected.
5. the safety return circuit according to claim 1 for prototype version electric car, it is characterised in that：When electric automobile occurs
During collision, inertia switch（7）It will be triggered and disconnect safety return circuit, and make electrokinetic cell（1）Interior positive pole insulation relay（13）、
Negative insulation relay（12）It is disconnected.
6. the safety return circuit according to claim 1 for prototype version electric car, it is characterised in that：Work as emergency stop switch（8）
When being pressed, safety return circuit will be switched off, the electrokinetic cell（1）Interior positive pole insulation relay（13）, negative insulation relay
（12）It is disconnected.
7. the safety return circuit according to claim 1 for prototype version electric car, it is characterised in that：When high pressure disconnects device
（9）When being removed, safety return circuit will be switched off, electrokinetic cell（1）Interior positive pole insulation relay（13）, negative insulation relay
（12）It is disconnected.
8. the safety return circuit according to claim 1 for prototype version electric car, it is characterised in that：Work as insulation monitoring and warning device
（17）When detecting that the insulaion resistance associated with maximum nominal drive system operating voltage is less than 500 Ω/V or faults itself,
Insulation monitoring and warning device（17）It will be switched off safety return circuit, the electrokinetic cell（1）Interior positive pole insulation relay（13）, negative insulation
Relay（12）It is disconnected.
9. the safety return circuit for prototype version electric car according to any one of claim 2 to 8, it is characterised in that：When
Positive pole insulation relay（13）, negative insulation relay（12）When being disconnected, the electrokinetic cell（1）Output disconnect, it is described
Electric machine controller（11）Power input be cut off, motor（10）Emergent stopping.
10. the safety return circuit according to claim 1 for prototype version electric car, it is characterised in that：Described jerk is opened
Close（8）Quantity be three, be separately positioned in vehicle body both sides and the cockpit after driver's cockpit and facilitate driver to be in any sitting posture
The position that Shi Douneng is touched, three emergency stop switch（8）It is in series by circuit, when any one emergency stop switch（8）It is pressed
When, you can by disconnecting safety return circuit by electrokinetic cell（1）Interior positive pole insulation relay（13）, negative insulation relay（12）
Disconnect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720617973.9U CN206826417U (en) | 2017-05-31 | 2017-05-31 | A kind of safety return circuit for prototype version electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720617973.9U CN206826417U (en) | 2017-05-31 | 2017-05-31 | A kind of safety return circuit for prototype version electric car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206826417U true CN206826417U (en) | 2018-01-02 |
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ID=60773675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720617973.9U Active CN206826417U (en) | 2017-05-31 | 2017-05-31 | A kind of safety return circuit for prototype version electric car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206826417U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107128181A (en) * | 2017-05-31 | 2017-09-05 | 华南理工大学 | A kind of safety return circuit for prototype version electric car |
-
2017
- 2017-05-31 CN CN201720617973.9U patent/CN206826417U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107128181A (en) * | 2017-05-31 | 2017-09-05 | 华南理工大学 | A kind of safety return circuit for prototype version electric car |
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