CN211809082U - High-voltage interlocking circuit of solar cell system - Google Patents
High-voltage interlocking circuit of solar cell system Download PDFInfo
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- CN211809082U CN211809082U CN201922091118.0U CN201922091118U CN211809082U CN 211809082 U CN211809082 U CN 211809082U CN 201922091118 U CN201922091118 U CN 201922091118U CN 211809082 U CN211809082 U CN 211809082U
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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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- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a high-voltage interlocking circuit of a solar battery system, which is characterized by comprising a solar battery, a storage battery, a vehicle control unit, a power battery and a connector loop, wherein the output end of the storage battery is electrically connected with the low-voltage input end of the solar battery through the connector loop; the signal end of the whole vehicle controller is electrically connected with the signal end of the solar battery through a CAN bus via a connector loop; the high-voltage output end of the solar battery is electrically connected with the high-voltage input end of the power battery through the connector loop. The utility model aims at providing a solar cell system's high-pressure interlocking circuit to prior art's defect, effectively improve whole car security.
Description
Technical Field
The utility model relates to a new forms of energy technical field, concretely relates to solar cell system's high-voltage interlocking circuit.
Background
In recent years, with global climate deterioration, atmospheric pollution and excessive use of petroleum resources, development of energy-saving and environment-friendly automobiles becomes an important direction and an inevitable choice for technical innovation of the automobile industry in the world. Solar energy is used as renewable energy, and has no pollution to the environment, so that the solar cell is widely applied to the automobile industry, and is developed for improving the working efficiency of the solar cell, and the application and development of the solar cell on a pure electric automobile and a hybrid electric automobile, and is used for charging a high-voltage power battery. The solar battery system is used as a high voltage source, and the high voltage connector of the solar battery system is not normally connected, so that the safety problem of electric shock of drivers and maintenance personnel caused by high voltage exposure can be caused.
In the prior art (application publication No. CN 108387809 a), the whole circuit is detected by a constant current adjusting component, a resistor and an electrical signal detecting component, the constant current adjusting component keeps the current in the detecting circuit constant, and the electrical signal detecting component detects the voltage value passing through the resistor and confirms the working state of the high-voltage connector according to the detected voltage value.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a solar cell system's high-pressure interlocking circuit to prior art's defect, effectively improve whole car security.
The utility model provides a high-voltage interlocking circuit of a solar battery system, which is characterized by comprising a solar battery, a storage battery, a vehicle control unit, a power battery and a connector loop, wherein the output end of the storage battery is electrically connected with the low-voltage input end of the solar battery through the connector loop; the signal end of the whole vehicle controller is electrically connected with the signal end of the solar battery through a CAN bus via a connector loop; the high-voltage output end of the solar battery is electrically connected with the high-voltage input end of the power battery through the connector loop.
In the above technical scheme, the connector loop includes a solar cell end socket and a power cell end socket, and the solar cell end socket and the power cell end socket are electrically connected through a solar cell spiral line.
In the technical scheme, the power battery end socket comprises seven contact pins including S +, S-, 24V +, GND, CANH, CANL and DET, wherein the length of five contact pins including 24V +, GND, CANH, CANL and DET is smaller than the length of two contact pins including S + and S-.
In the technical scheme, the solar cell terminal socket comprises seven pins including S +, S-, 24V +, GND, CANH, CANL and DET, wherein the lengths of the five pins including 24V +, GND, CANH, CANL and DET are smaller than the lengths of the S + and S-two pins.
In the technical scheme, the positive electrode and the negative electrode of the low-voltage loop storage battery are respectively and electrically connected with the 24V + and the GND pins of the power battery end socket, the 24V + and the GND pins of the power battery end socket are respectively and electrically connected with the 24V + and the GND pins of the solar battery end socket through the solar battery spiral line, and the 24V + and the GND pins of the solar battery end socket are electrically connected with the low-voltage input end of the solar battery.
In the above technical scheme, the detection pin DET of the vehicle control unit is connected to the low-voltage input end of the solar battery through the power battery end socket, the solar battery spiral line and the solar battery end.
In the technical scheme, the high-voltage contactors of the positive pole and the negative pole of the power battery are respectively and electrically connected with the S + and the S-contact pins of the power battery end socket, the S + and the S-contact pins of the power battery end socket are electrically connected with the S + and the S-contact pins of the solar battery end socket through the solar battery spiral line, and the S + and the S-contact pins of the solar battery end socket are electrically connected with the high-voltage contactors of the positive pole and the negative pole of the high-voltage input end of the solar battery.
In the above technical scheme, the CANH and CANL ends of the vehicle control unit are respectively electrically connected with the CANH and CANL contact pins of the power battery end socket, the CANH and CANL contact pins of the power battery end socket are electrically connected with the CANH and CANL contact pins of the solar battery end socket through the solar battery spiral line, and the CANH and CANL contact pins of the solar battery end socket are respectively connected to the CANH and CANL signal ends of the solar battery.
In the technical scheme, when a high-voltage loop formed by the power battery and the solar battery is disconnected, the power battery end socket and the solar battery end socket disconnect the electric connection between the low-voltage input end of the solar battery and the storage battery; before the positive line and the negative line of the high-voltage loop are not disconnected, the high-voltage contactor of the solar battery is disconnected, the low-voltage input end and the signal end of the solar battery are electrically disconnected, the whole vehicle controller detects that the communication signal of the signal end is lost and detects that the DET detection pin high-level signal is lost, the whole vehicle controller controls the high-voltage contactor of the power battery to be disconnected, and the whole vehicle controller simultaneously reports faults to the upper computer.
In the technical scheme, the solar battery and the solar battery end socket are arranged on the semitrailer; the power battery, the vehicle control unit, the storage battery and the power battery end socket are arranged on the tractor.
The utility model has the advantages of simple structure, low cost and convenient installation. The solar energy electric fuel hybrid power tractor can completely meet the harsh use requirement of the solar energy electric fuel hybrid power tractor on a high-voltage interlocking circuit, reduces the design cost, effectively monitors and processes the connection state of the solar cell high-voltage circuit, and avoids arc discharge caused by disconnecting or closing a solar cell circuit connector, so that the safety of workers is threatened and the safety of the whole tractor is affected.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention;
the system comprises a power battery 1, a power battery 2, a power battery anode high-voltage contactor 3, a power battery cathode high-voltage contactor 4, a vehicle control unit 5, a storage battery 6, a power battery end socket 7, a solar battery spiral line 8, a solar battery end socket 9, a solar battery anode high-voltage contactor 10, a solar battery cathode high-voltage contactor 11, and a solar battery.
Detailed Description
The invention will be further described in detail with reference to the drawings and the following detailed description, which are provided for the purpose of clearly understanding the invention and are not intended to limit the invention.
As shown in fig. 1, the utility model provides a solar cell system's high-voltage interlocking circuit, including power battery 1, the anodal high voltage contactor of power battery 2, power battery negative pole high voltage contactor 3, vehicle control unit VCU4, 24V battery 5, power battery end socket 6, solar cell helix 7, solar cell end socket 8, the anodal high voltage contactor of solar cell 9, solar cell negative pole high voltage contactor 10, solar cell 11.
The power battery end socket 6 and the solar battery end socket 8 respectively comprise seven contact pins of S +, S-, 24V +, GND, CANH, CANL and DET, wherein the lengths of the five contact pins of 24V +, GND, CANH, CANL and DET are smaller than the lengths of the two contact pins of S + and S-, S + and S-are high-voltage circuits, 24V + and GND are power supply circuits of a controller, CANH and CANL are communication circuits of the controller CAN, and DET is detection input of a VCU.
The positive pole and the negative pole of the high-voltage loop power battery 1 are respectively connected to the S + and the S-pins of a power battery end socket 6 through a power battery positive pole high-voltage relay 2 and a power battery negative pole high-voltage relay 3, then the S + and the S-pins of a solar battery end socket 8 are connected through a solar battery spiral line 7, and the S + and the S-pins of the solar battery end socket 8 are respectively connected to the positive pole and the negative pole of a solar battery 11 through a solar battery positive pole high-voltage relay 9 and a power battery negative pole high-voltage relay 10.
The 24V and 24V-two poles of the low-voltage loop storage battery 5 are connected to the 24V + and GND pins of the power battery end socket 6, then connected with the 24V + and GND pins of the solar battery end socket 8 through the solar battery spiral line 7, and the 24V + and GND pins of the solar battery end socket 8 are respectively connected to the 24V + and GND two poles of the low-voltage power supply of the solar battery 11.
The CANH and CANL signal ends of the VCU4 of the diagnosis loop vehicle control unit are connected to CANH and CANL contact pins of the power battery end socket 6, the CANH and CANL contact pins of the solar battery end socket 8 are connected through a solar battery spiral line 7, and the CANH and CANL contact pins of the solar battery end socket 8 are respectively connected to the communication CANH and CANL signal ends of the solar battery 11. The detection pin DET of the VCU4 of the vehicle control unit is connected to the 24V + end of the low-voltage power supply of the solar battery 11 through the power battery end socket, the solar battery spiral line 7 and the solar battery end socket 8.
When the high-voltage loop of the solar battery system normally works, the power battery anode high-voltage contactor 2, the power battery cathode high-voltage contactor 3, the solar battery anode high-voltage contactor 9 and the solar battery cathode high-voltage contactor 10 are closed, the storage battery 5 supplies low-voltage power to the solar battery 11, and meanwhile, the solar battery 11 and the vehicle control unit VCU4 carry out real-time CAN communication for information interaction.
When the connector loop between the power battery end socket 6, the solar battery spiral line 7 and the solar battery end socket 8 falls off accidentally or the whole vehicle is overhauled, the maintainer forgets to disconnect the high-voltage power, and when the power battery end socket 6, the solar battery end socket 8 and the high-voltage loop of the solar battery spiral line 7 are disconnected, the low-voltage power supply 24V + and the GND end of the solar battery 11 are disconnected preferentially due to the special structural design of the power battery end socket 6 and the solar battery end socket 8. Because the low-voltage power supply disappears, before the positive electrode circuit and the negative electrode circuit of the high-voltage loop formed by the solar battery and the power battery are not disconnected, the solar battery positive electrode high-voltage contactor 9 and the solar battery negative electrode high-voltage contactor 10 of the solar battery 11 are cut off, and the solar battery 11 is ensured not to have high-voltage output. When the low-voltage power supply input end 24V + and GND of the solar cell 11 is disconnected, the signal ends CANH and CANL of the solar cell 11 are also disconnected. The VCU4 of the vehicle control unit detects that the CAN communication signal of the solar battery 11 is lost and detects that the DET detection pin high level signal is lost, the VCU4 of the vehicle control unit controls the power battery anode high voltage contactor 2 and the power battery cathode high voltage contactor 3 which are disconnected with the power battery 1, so that the high voltage output of the power battery 1 is cut off and faults are reported, and the phenomenon that the arc of a solar battery loop connector is drawn when the power battery loop connector is accidentally dropped or is not in compliance operation is avoided, so that the safety of workers is threatened and the safety of the vehicle is affected.
The solar battery 11 and the solar battery end socket 8 are arranged on the semitrailer; the power battery 1, the vehicle control unit 4, the storage battery 5 and the power battery end socket 6 are arranged on the tractor, and reasonable and optimal arrangement is achieved.
Details not described in this specification are within the skill of the art that are well known to those skilled in the art.
Claims (10)
1. A high-voltage interlocking circuit of a solar cell system is characterized by comprising a solar cell, a storage battery, a vehicle control unit, a power cell and a connector loop, wherein the output end of the storage battery is electrically connected with the low-voltage input end of the solar cell through the connector loop; the signal end of the whole vehicle controller is electrically connected with the signal end of the solar battery through a CAN bus via a connector loop; the high-voltage output end of the solar battery is electrically connected with the high-voltage input end of the power battery through the connector loop.
2. The high voltage interlock circuit for a solar cell system as claimed in claim 1, wherein said connector loop comprises a solar cell terminal socket and a power cell terminal socket, the solar cell terminal socket and the power cell terminal socket being electrically connected by a solar cell spiral.
3. The high voltage interlock circuit of solar battery system according to claim 2, wherein the power battery terminal socket comprises seven pins, i.e. S +, S-, 24V +, GND, CANH, CANL and DET, wherein the lengths of the five pins, i.e. 24V +, GND, CANH, CANL and DET, are less than the lengths of the two pins, i.e. S +, S-.
4. The high voltage interlock circuit of claim 3, wherein the solar cell socket comprises seven pins, i.e. S +, S-, 24V +, GND, CANH, CANL, DET, wherein the length of the five pins, i.e. 24V +, GND, CANH, CANL, DET, is less than the length of the two pins, i.e. S +, S-.
5. The high-voltage interlocking circuit of the solar battery system according to claim 4, wherein the positive electrode and the negative electrode of the low-voltage loop storage battery are electrically connected with the 24V + and GND pins of the power battery terminal socket respectively, the 24V + and GND pins of the power battery terminal socket are electrically connected with the 24V + and GND pins of the solar battery terminal socket respectively through a solar battery helical line, and the 24V + and GND pins of the solar battery terminal socket are electrically connected with the low-voltage input end of the solar battery.
6. The high-voltage interlock circuit of solar battery system according to claim 2, wherein the detection pin DET of the vehicle control unit is connected to the low-voltage input terminal of the solar battery through the power battery terminal socket, the solar battery spiral line and the solar battery terminal.
7. The high-voltage interlocking circuit of the solar battery system according to claim 4, wherein the high-voltage contactors of the positive and negative poles of the power battery are electrically connected with the S + and S-pins of the power battery terminal socket respectively, the S + and S-pins of the power battery terminal socket are electrically connected with the S + and S-pins of the solar battery terminal socket through a solar battery spiral line, and the S + and S-pins of the solar battery terminal socket are electrically connected with the high-voltage contactors of the positive and negative poles of the high-voltage input end of the solar battery.
8. The high-voltage interlocking circuit of the solar battery system according to claim 4, wherein the CANH and CANL terminals of the vehicle control unit are electrically connected with the CANH and CANL pins of the power battery terminal socket respectively, the CANH and CANL pins of the power battery terminal socket are electrically connected with the CANH and CANL pins of the solar battery terminal socket through a solar battery spiral line, and the CANH and CANL pins of the solar battery terminal socket are connected with the CANH and CANL signal terminals of the solar battery respectively.
9. The high-voltage interlock circuit of solar battery system according to claim 6, wherein when the high-voltage loop formed by the power battery and the solar battery is broken, the power battery terminal socket and the solar battery terminal socket break the electrical connection between the low-voltage input terminal of the solar battery and the storage battery; before the positive line and the negative line of the high-voltage loop are not disconnected, the high-voltage contactor of the solar battery is disconnected, the low-voltage input end and the signal end of the solar battery are electrically disconnected, the whole vehicle controller detects that the communication signal of the signal end is lost and detects that the DET detection pin high-level signal is lost, the whole vehicle controller controls the high-voltage contactor of the power battery to be disconnected, and the whole vehicle controller simultaneously reports faults to the upper computer.
10. The high-voltage interlocking circuit of the solar battery system as claimed in claim 9, wherein the solar battery and the solar battery end socket are disposed on the semitrailer; the power battery, the vehicle control unit, the storage battery and the power battery end socket are arranged on the tractor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922091118.0U CN211809082U (en) | 2019-11-28 | 2019-11-28 | High-voltage interlocking circuit of solar cell system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922091118.0U CN211809082U (en) | 2019-11-28 | 2019-11-28 | High-voltage interlocking circuit of solar cell system |
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| CN211809082U true CN211809082U (en) | 2020-10-30 |
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| CN201922091118.0U Active CN211809082U (en) | 2019-11-28 | 2019-11-28 | High-voltage interlocking circuit of solar cell system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110803027A (en) * | 2019-11-28 | 2020-02-18 | 东风商用车有限公司 | High-voltage interlocking circuit of solar cell system |
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- 2019-11-28 CN CN201922091118.0U patent/CN211809082U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110803027A (en) * | 2019-11-28 | 2020-02-18 | 东风商用车有限公司 | High-voltage interlocking circuit of solar cell system |
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