CN209590226U - A kind of detection circuit of electric automobile high-voltage D.C. contactor - Google Patents
A kind of detection circuit of electric automobile high-voltage D.C. contactor Download PDFInfo
- Publication number
- CN209590226U CN209590226U CN201920071997.8U CN201920071997U CN209590226U CN 209590226 U CN209590226 U CN 209590226U CN 201920071997 U CN201920071997 U CN 201920071997U CN 209590226 U CN209590226 U CN 209590226U
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- Prior art keywords
- contactor
- voltage
- battery controller
- output end
- battery
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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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 discloses a kind of detection circuit of electric automobile high-voltage D.C. contactor, including power battery pack, the power battery pack includes the cathode contact device being sequentially connected electrically, the first power battery, the first partial pressure contactor, the second power battery, the second partial pressure contactor, third power battery and positive contactor；The output end of the anode contactor is connect by main contactor with the input terminal of high-pressure electric control assembly, and the output end of the high-pressure electric control assembly is connect with the cathode contact device；Capacitor is provided between the positive and negative anodes of the high-pressure electric control assembly.The circuit of the utility model convenient and efficient accurately can detect automobile high-voltage DC contactor, and rapidly removing faults.
Description
Technical field
The utility model relates to a kind of detection circuits of electric automobile high-voltage D.C. contactor.
Background technique
Currently, electric car uses the high-power power supply mode of high voltage direct current, high-voltage DC contactor passes through low voltage control height
Pressure, each high voltage component of energy effective protection and personal safety, the most common failure of high-voltage DC contactor are sintering and not can turn on, mesh
It is preceding fine there are no one, very easily detect the method for contactor failure.
Utility model content
The utility model aim is to provide a kind of electric automobile high-voltage D.C. contactor in view of the defects existing in the prior art
Detection circuit.
The utility model to achieve the above object, adopts the following technical scheme that a kind of electric automobile high-voltage D.C. contactor
Detection circuit, including power battery pack, the power battery pack include the cathode contact device being sequentially connected electrically, the first power electric
Pond, the first partial pressure contactor, the second power battery, the second partial pressure contactor, third power battery and positive contactor；It is described just
The output end of pole contactor is connect by main contactor with the input terminal of high-pressure electric control assembly, the output of the high-pressure electric control assembly
End is connect with the cathode contact device；Capacitor is provided between the positive and negative anodes of the high-pressure electric control assembly；It further include preliminary filling resistance
It is in parallel with the main contactor after the preliminary filling resistance and the series connection of preliminary filling contactor with preliminary filling contactor；It further include battery control
Device, the first output end of the battery controller are connect with the control signal of the cathode contact device, the battery controller
Second output terminal with it is described first partial pressure contactor control signal connect, the third output end of the battery controller and
The control signal connection of the second partial pressure contactor, the 4th output end of the battery controller and the positive contactor
Control signal connection, the control signal of the 5th output end of the battery controller and the main contactor connects
It connects, the 6th output end of the battery controller is connect with the control signal of the preliminary filling contactor；
Wherein, the voltage sensor A that the voltage between first power battery and the first partial pressure contactor passes through setting
It is transferred to battery controller, the voltage sensor that the voltage between second power battery and the second partial pressure contactor passes through setting
Device B is transferred to battery controller, the voltage sensor C that the voltage between the three-power electric pond and positive contactor passes through setting
It is transferred to battery controller, the voltage sensor E transmission that the voltage between the preliminary filling resistance and preliminary filling contactor passes through setting
To battery controller, the voltage between the high-pressure electric control assembly of the main contactor passes through the voltage sensor F of setting
It is transferred to battery controller；
It is connected between the battery controller and the high-pressure electric control assembly by CAN bus.
The utility model has the beneficial effects that the detection circuit of the utility model can be convenient and efficient accurately to automobile high pressure
D.C. contactor is detected, and rapidly removing faults, convenient for promoting the use of.
Detailed description of the invention
Fig. 1 is the detection circuit schematic illustration of the utility model.
Specific embodiment
Shown in Fig. 1, a kind of detection circuit of electric automobile high-voltage D.C. contactor, including power battery pack, institute are disclosed
Stating power battery pack includes that the cathode contact device 1 being sequentially connected electrically, the first power battery 2, first partial pressure contactor 3, second are dynamic
Power battery 4, second divides contactor 5, third power battery 6 and positive contactor 7；The output end of the anode contactor 7 is logical
It crosses main contactor 9 to connect with the input terminal of high-pressure electric control assembly, the output end and the cathode contact of the high-pressure electric control assembly
Device 1 connects；Capacitor is provided between the positive and negative anodes of the high-pressure electric control assembly；It further include precharge 8 and preliminary filling contactor 10, institute
It states in parallel with the main contactor 9 after preliminary filling resistance 8 and preliminary filling contactor 10 are connected；It further include battery controller, the battery
First output end of controller is connect with the control signal of the cathode contact device, the second output terminal of the battery controller
It is connect with the control signal of the first partial pressure contactor, the third output end of the battery controller and second partial pressure
The control signal of contactor connects, the control signal of the 4th output end of the battery controller and the positive contactor
Connection, the 5th output end of the battery controller are connect with the control signal of the main contactor, the electricity
6th output end of pool controller is connect with the control signal of the preliminary filling contactor.
Wherein, the voltage sensor A that the voltage between first power battery and the first partial pressure contactor passes through setting
It is transferred to battery controller, the voltage sensor that the voltage between second power battery and the second partial pressure contactor passes through setting
Device B is transferred to battery controller, the voltage sensor C that the voltage between the three-power electric pond and positive contactor passes through setting
It is transferred to battery controller, the voltage sensor E transmission that the voltage between the preliminary filling resistance and preliminary filling contactor passes through setting
To battery controller, the voltage between the high-pressure electric control assembly of the main contactor passes through the voltage sensor F of setting
It is transferred to battery controller.
It is connected between the battery controller and the high-pressure electric control assembly by CAN bus.
As shown, the voltage of A, B, C, D, E, F point, which passes through the voltage sensor (not shown) being correspondingly arranged, is conveyed to electricity
Pool controller.Cathode contact device, the first partial pressure contactor, the second partial pressure contactor, positive contactor, preliminary filling contactor, master connect
Tentaculum is all controlled by battery controller.It is powered in electric automobile high-voltage and when AC charging, battery controller control contactor
Connection sequence are as follows: cathode contact device, the first partial pressure contactor, the second partial pressure contactor, positive contactor, preliminary filling contactor, in advance
After the completion of filling, battery controller controls the disconnection of preliminary filling contactor again, main contactor is connected.
1, the testing principle of each contactor sintering failure is as follows:
When battery controller controls the connection of each contactor, voltage sensor can successively be conveyed A, B, C, D (E), F point voltage
To battery controller, and when the sintering of certain contactor, the forward and backward measurement point voltage sensor of the contactor will be simultaneously by voltage
Signal is conveyed to battery controller, and battery controller judges that the contactor is sintered accordingly, for safety, battery controller control
Each contactor all disconnects, prevents electric car from normally powering on and AC charging, and fault alarm.Such as: the second partial pressure contact
When device burn-back, when battery controller control the first partial pressure contactor is connected, the voltage sensor of B, C point is measured just simultaneously to electricity
Pool controller conveys voltage signal, and the rest may be inferred for other situations.
2, each contactor not can turn on the detection of failure
When battery controller controls the connection of each contactor, voltage sensor can successively be conveyed A, B, C, D (E), F point voltage
To battery controller, and when certain contactor not can turn on, the rear measurement point voltage sensor of the contactor cannot will be correct
Voltage signal be conveyed to battery controller, battery controller judges that the contactor not can turn on accordingly, for safety, battery
Controller controls each contactor and all disconnects, prevents electric car from normally powering on and AC charging, and fault alarm.Such as: the
When two partial pressure contactors not can turn on, when battery controller control the second partial pressure contactor is connected, the voltage sensor of C point is measured
Device cannot convey correct voltage signal to battery controller, and the rest may be inferred for other situations.The inspection of preliminary filling resistance interruption failure
It surveys also similar.
3, battery controller and high-pressure electric control assembly are communicated by CAN bus.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (1)
1. a kind of detection circuit of electric automobile high-voltage D.C. contactor, which is characterized in that including power battery pack, the power
Battery pack includes the cathode contact device being sequentially connected electrically, the first power battery, the first partial pressure contactor, the second power battery, the
Two partial pressure contactors, third power battery and positive contactor；The output end of the anode contactor passes through main contactor and height
The input terminal of voltage control assembly connects, and the output end of the high-pressure electric control assembly is connect with the cathode contact device；The high pressure
Capacitor is provided between the positive and negative anodes of Electronic Control Assembly；It further include preliminary filling resistance and preliminary filling contactor, the preliminary filling resistance and preliminary filling
It is in parallel with the main contactor after contactor series connection；Further include battery controller, the first output end of the battery controller with
The control signal of the cathode contact device connects, the second output terminal of the battery controller and the first partial pressure contactor
Control signal connection, the third output end of the battery controller and it is described second partial pressure contactor control signal connect
It connects, the 4th output end of the battery controller is connect with the control signal of the positive contactor, the battery controller
The 5th output end connect with the control signal of the main contactor, the 6th output end of the battery controller with it is described pre-
Fill the control signal connection of contactor；
Wherein, the voltage sensor A transmission that the voltage between first power battery and the first partial pressure contactor passes through setting
To battery controller, the voltage between second power battery and the second partial pressure contactor passes through the voltage sensor B of setting
It is transferred to battery controller, the voltage between the three-power electric pond and positive contactor is passed by the voltage sensor C of setting
It is defeated by battery controller, the voltage between the preliminary filling resistance and preliminary filling contactor is transferred to by the voltage sensor E being arranged
The voltage between the high-pressure electric control assembly of battery controller, the main contactor is passed by the voltage sensor F of setting
It is defeated by battery controller；
It is connected between the battery controller and the high-pressure electric control assembly by CAN bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920071997.8U CN209590226U (en) | 2019-01-16 | 2019-01-16 | A kind of detection circuit of electric automobile high-voltage D.C. contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920071997.8U CN209590226U (en) | 2019-01-16 | 2019-01-16 | A kind of detection circuit of electric automobile high-voltage D.C. contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209590226U true CN209590226U (en) | 2019-11-05 |
Family
ID=68353540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920071997.8U Withdrawn - After Issue CN209590226U (en) | 2019-01-16 | 2019-01-16 | A kind of detection circuit of electric automobile high-voltage D.C. contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209590226U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633434A (en) * | 2019-01-16 | 2019-04-16 | 无锡商业职业技术学院 | A kind of detection circuit of electric automobile high-voltage D.C. contactor |
-
2019
- 2019-01-16 CN CN201920071997.8U patent/CN209590226U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633434A (en) * | 2019-01-16 | 2019-04-16 | 无锡商业职业技术学院 | A kind of detection circuit of electric automobile high-voltage D.C. contactor |
| CN109633434B (en) * | 2019-01-16 | 2023-12-22 | 无锡商业职业技术学院 | Detection circuit of high-voltage direct-current contactor of electric automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191105 Effective date of abandoning: 20220602 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20191105 Effective date of abandoning: 20220602 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |