CN214929034U - Fuel cell hydrogen energy automobile auxiliary energy system - Google Patents

Fuel cell hydrogen energy automobile auxiliary energy system Download PDF

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Publication number
CN214929034U
CN214929034U CN202023063359.3U CN202023063359U CN214929034U CN 214929034 U CN214929034 U CN 214929034U CN 202023063359 U CN202023063359 U CN 202023063359U CN 214929034 U CN214929034 U CN 214929034U
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power battery
charging
module
contactor
electrically connected
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Chinese (zh)
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程飞
郝义国
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Wuhan Grove Hydrogen Automobile Co Ltd
Wuhan Grove Hydrogen Energy Automobile Co Ltd
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Wuhan Grove Hydrogen Energy Automobile Co Ltd
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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
    • 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
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The utility model relates to a hydrogen can car technical field especially relates to a fuel cell hydrogen can car auxiliary energy system. The system comprises a shell, a control panel, a power panel, a super capacitor module, a bidirectional DC module and a power battery module; the control panel, the power board, the super capacitor module, the bidirectional DC module and the power battery module are all arranged in the shell in an integrated mode, the control panel is electrically connected with the power board, and the super capacitor module, the bidirectional DC module and the power battery module are all arranged on the power board in an integrated mode. Auxiliary energy system assembles into a mixed auxiliary energy system with original super capacitor system, two-way DC and power battery, and than three disconnect-type system, this auxiliary energy system's volume and weight all are showing and are reducing, have saved a large amount of spaces of arranging for the hydrogen energy car, still are showing the manufacturing cost who has reduced the hydrogen energy car, have improved economic performance, still have high-pressure security performance strong and practicality advantage such as strong.

Description

Fuel cell hydrogen energy automobile auxiliary energy system
Technical Field
The utility model relates to a hydrogen can car technical field especially relates to a fuel cell hydrogen can car auxiliary energy system.
Background
With the popularization and promotion of hydrogen fuel new energy automobiles, the hydrogen fuel automobiles are widely concerned in the world. As the hydrogen energy automobile belongs to an emerging technical product, a plurality of special related products are generated, wherein the hybrid auxiliary energy scheme is used as a scheme for improving the dynamic property and the driving range of the hydrogen energy automobile. The existing separated hybrid auxiliary energy system has the problems of large volume, high cost, complex structural design and the like.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a fuel cell hydrogen can car auxiliary energy system.
The utility model provides a fuel cell hydrogen energy automobile auxiliary energy system, which comprises a control panel, a power panel, a super capacitor module, a bidirectional DC module, a power battery module, a first copper bar and a second copper bar;
the control board is electrically connected with the power board, and the super capacitor module, the bidirectional DC module and the power battery module are integrally arranged on the power board;
the super capacitor module comprises a first capacitor single body, a second capacitor single body, a pre-charging loop fuse, a super capacitor negative contactor, a super capacitor positive contactor, a pre-charging contactor and a pre-charging resistor;
the bidirectional DC module comprises a voltage boosting and reducing module, an input side pre-charging capacitor and an output side pre-charging capacitor;
the power battery module comprises a first power battery, a second MBD switch, a power battery main negative contactor, a power battery loop fuse, a power battery main positive contactor, a power battery pre-charging resistor and a third copper bar;
the first capacitor monomer is connected with the second capacitor monomer in series, the anode of the second capacitor monomer is electrically connected with the anode of the pre-charging loop fuse, the cathode of the pre-charging loop fuse is electrically connected with one end of the pre-charging contactor, the other end of the pre-charging contactor is electrically connected with the anode of the pre-charging resistor, one end of the super capacitor anode contactor is electrically connected with one end of the pre-charging contactor, the other end of the super capacitor anode contactor is electrically connected with the cathode of the pre-charging resistor, one end of the super capacitor cathode contactor is electrically connected with the cathode of the first capacitor monomer, the cathode of the first copper bar is respectively electrically connected with the other end of the super capacitor cathode contactor, the cathode of the pre-charging side capacitor and the second high-voltage input end of the buck-boost module, and the anode of the first copper bar is respectively electrically connected with the cathode of the pre-charging resistor and the first high-voltage input end of the buck-boost module, the positive electrode and the negative electrode of the output side pre-charging capacitor are respectively and electrically connected with the first high-voltage output end and the second high-voltage output end of the voltage boosting and reducing module;
the first power battery, the second MBD switch, the third copper bar and the second power battery are sequentially connected in series, one end of the power battery pre-charging contactor is electrically connected with the positive electrode of the first power battery, the other end of the power battery is electrically connected with the positive electrode of the power battery pre-charging resistor, one end of the main positive contactor of the power battery is electrically connected with the positive electrode of the first power battery, the other end of the main negative contactor of the power battery is electrically connected with the negative pole of the pre-charging resistor of the power battery, one end of the main negative contactor of the power battery is electrically connected with the negative pole of the second power battery, the other end of the second copper bar is electrically connected with the negative electrode of the power battery loop fuse, the negative electrode of the second copper bar is respectively electrically connected with the positive electrode of the power battery loop fuse and the negative electrode of the output side pre-charging capacitor, the positive pole of the power battery pre-charging resistor is electrically connected with the negative pole of the power battery pre-charging resistor and the positive pole of the output side pre-charging capacitor respectively.
Further, still include the casing, the control panel the power board the super capacitor module with two-way DC module all integrated the setting is in the casing, the control panel has the low pressure input, be equipped with low voltage power socket on the casing first MBD switch second MBD switch and high-pressure output interface, low voltage power socket with the low pressure input electricity is connected, high-pressure output interface respectively with the first high-pressure output of step-up and step-down module with second high-pressure output electricity is connected.
Furthermore, explosion-proof breather valves are arranged on two opposite sides of the shell.
Further, a cooling liquid water pipe is arranged inside the shell, the cooling liquid water pipe is laid below the power plate, a cooling liquid inlet and a cooling liquid outlet are formed in the shell, the cooling liquid inlet is communicated with one end of the cooling liquid water pipe, and the cooling liquid outlet is communicated with the other end of the cooling liquid water pipe.
The utility model provides a beneficial effect that technical scheme brought is: auxiliary energy system carries out corresponding integration and optimization with original super capacitor system and two-way DC respective power board and control panel, last integrated power board and a control panel, and the integration and the optimization of effectual realization system function still make auxiliary energy's whole volume show to reduce to showing the convenience that has improved the auxiliary energy installation, being applicable to the compact installation of hydrogen energy car. Furthermore, the utility model discloses after the original super capacitor system of auxiliary energy system and two-way DC carried out integrated configuration, showing the use quantity that has reduced the high-pressure pencil and other hardware materials, showing and having reduced manufacturing cost and installation cost.
Drawings
Fig. 1 is a circuit diagram of an auxiliary energy system of a fuel cell hydrogen energy automobile according to the present invention;
fig. 2 is a schematic structural diagram of an auxiliary energy system of a fuel cell hydrogen energy automobile according to the present invention;
fig. 3 is a schematic structural diagram of an auxiliary energy system of a fuel cell hydrogen energy vehicle according to the present invention;
fig. 4 is a schematic structural diagram of an auxiliary energy system of a fuel cell hydrogen energy automobile.
In the figure: 10-housing, 11-low voltage power socket, 13-first MBD switch, 14-high voltage output interface, 20-control board, 21-first low voltage input, 22-second low voltage input, 23-CAN communication interface, 30-power board, 40-super capacitor module, 41-first capacitor cell, 42-second capacitor cell, 43-precharge circuit fuse, 44-super capacitor negative contactor, 45-super capacitor positive contactor, 46-precharge contactor, 47-precharge resistor, 50-bidirectional DC module, 51-buck-boost module, 52-input side capacitor, 53-output side precharge capacitor, 60-first copper bar, 70-power battery module, 71-first power battery, 72-second power battery, 73-a second MBD switch, 74-a power battery main negative contactor, 75-a power battery loop fuse, 76-a power battery main positive contactor, 77-a power battery pre-charging contactor, 78-a power battery pre-charging resistor, 79-a third copper bar, 80-a pin bank, 90-a pressure relief valve, 100-a cooling liquid water pipe, 101-a cooling liquid inlet, 102-a cooling liquid outlet, 110-a second copper bar, 120-an explosion-proof breather valve and 130-a grounding wire harness.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be further described below with reference to the accompanying drawings.
Referring to fig. 1 to 4, an embodiment of the present invention provides a fuel cell hydrogen energy automobile auxiliary energy system, which includes a housing 10, a control board 20, a power board 30, a super capacitor module 40, a bidirectional DC module 50, and a power battery module 70;
the control board 20, the power board 30, the super capacitor module 40 and the bidirectional DC module 50 are all integrally arranged in the housing 10, the control board 20 is electrically connected with the power board 30, the super capacitor module 40, the bidirectional DC module 50 and the power battery module 70 are all integrally arranged on the power board 30, the super capacitor module 40 and the bidirectional DC module 50 are electrically connected through a first copper bar 60, the bidirectional DC module 50 is electrically connected with the power battery module 70 through a second copper bar 110, and the control board 20 has a low voltage input terminal 21;
the super capacitor module 40 comprises a first capacitor unit 41, a second capacitor unit 42, a pre-charging circuit fuse 43, a super capacitor negative contactor 44, a super capacitor positive contactor 45, a pre-charging contactor 46 and a pre-charging resistor 47;
the bidirectional DC module 50 includes a buck-boost module 51, an input side pre-charge capacitor 52 and an output side pre-charge capacitor 53;
the power battery module 70 comprises a first power battery 71, a second power battery 72, a second MBD switch 73, a power battery main negative contactor 74, a power battery loop fuse 75, a power battery main positive contactor 76, a power battery pre-charging contactor 77, a power battery pre-charging resistor 78 and a third copper bar 79;
the first capacitor unit 41 is connected in series with the second capacitor unit 42, the positive electrode of the second capacitor unit 42 is electrically connected with the positive electrode of the pre-charging circuit fuse 43, the negative electrode of the pre-charging circuit fuse 43 is electrically connected with one end of the pre-charging contactor 46, the other end of the pre-charging contactor 46 is electrically connected with the positive electrode of the pre-charging resistor 47, one end of the super-capacitor positive electrode contactor 45 is electrically connected with one end of the pre-charging contactor 46, the other end of the super-capacitor positive electrode contactor is electrically connected with the negative electrode of the pre-charging resistor 47, one end of the super-capacitor negative electrode contactor 44 is electrically connected with the negative electrode of the first capacitor unit 41, the negative electrode of the first copper bar 60 is electrically connected with the other end of the super-capacitor negative electrode contactor 44, the negative electrode of the input side pre-charging capacitor 52 and the second high-voltage input end of the buck-boost module 51, and the positive electrode of the super-capacitor negative electrode of the pre-charging resistor 47, A first high-voltage input end of the voltage boosting and reducing module 51 is electrically connected, and a positive electrode and a negative electrode of the output-side pre-charging capacitor 53 are respectively and electrically connected with a first high-voltage output end and a second high-voltage output end of the voltage boosting and reducing module 51;
first power battery 71 second MBD switch 73 third copper bar 79 with second power battery 72 establishes ties in proper order, the one end of power battery pre-charge contactor 77 with the anodal electricity of first power battery 71 is connected, its other end with the anodal electricity of power battery pre-charge resistance 78 is connected, the main positive contactor 76 of power battery one end with the anodal electricity of first power battery 71 is connected, its other end with the negative pole electricity of power battery pre-charge resistance 78 is connected, the main negative contactor 74 of power battery one end with the negative pole electricity of second power battery 72 is connected, its other end with the negative pole electricity of power battery return circuit insurance 75 is connected, the negative pole of second copper bar 110 respectively with the positive pole of power battery return circuit insurance 75 with the negative pole electricity of output side pre-charge electric capacity 53 is connected, its positive pole respectively with the negative pole of power battery pre-charge resistance 78 with the anodal electricity of output side pre-charge electric capacity 53 links Connecting;
be equipped with low voltage power socket 11 on the casing 10 first MBD switch 13 second MBD switch 73 and high voltage output interface 14, low voltage power socket 11 with low pressure input 21 electricity is connected, high voltage output interface 14 respectively with the first high voltage output end and the second high voltage output end electricity of buck-boost module 51 are connected.
The utility model discloses in, control panel 20 and power board 30 carry out electric connection through row's needle 80, and the design has low pressure input 21 on the control panel 20, can effectively reduce because the connector is not hard up to lead to the control power supply signal unusual and the condition emergence of control inefficacy. Control board 20 is used to control and collect temperature, voltage, current, and hardware status information of power board 30. First copper bar 60, second copper bar 110 and third copper bar 79 are flexible copper bars, and wherein first copper bar 60 and second copper bar 110 set up on power board 30, and flexible copper bar can effectively withstand external pressure, has certain shock attenuation effect and protection high-voltage circuit safety. The first MBD switch 13 is used for actively cutting off a high-voltage loop inside the auxiliary energy system, so as to ensure high-voltage safety during fine maintenance of the auxiliary energy system. The pre-charge resistor 47 is used to limit the magnitude of the pre-charge current to protect the pre-charge circuit fuse 43. The precharge circuit fuse 43 can actively disconnect the power supply circuit when the precharge current is large or the load current is large, thereby protecting the circuit. The supercapacitor negative contactor 44 is actively closed during pre-charging and energizing. After the system is precharged, the voltage increasing and decreasing module 51 increases the voltage of the super capacitor module 40 to a certain value and supplies power to the outside; or the voltage reduction circuit reduces the external voltage to a certain value to supplement the electric quantity to the super capacitor module 40, so as to realize the charging and discharging functions of the auxiliary energy system. The input side precharge capacitor 52 mainly functions to stabilize the input side voltage, and the output side precharge capacitor 53 mainly functions to stabilize the output side voltage; the second MBD switch 73 can ensure the high-voltage safety of the power battery module 70, and when the system needs to be maintained or overhauled, the high-voltage loop of the power battery module 70 can be actively cut off by pulling out the second MBD switch 73, so that the maintenance safety is ensured; and the third copper bar can effectively absorb the tension and pressure between the high-voltage connections of the first power battery 71 and the second power battery 72, so that the high-voltage connections are prevented from being damaged due to the tension and pressure between the high-voltage connections. Similarly, the second copper bar 110 can effectively absorb the tension and pressure between the power battery module 70 and the bidirectional DC module high-voltage connection, and prevent the high-voltage connection from being damaged due to the tension and pressure between the high-voltage connections. The power battery loop fuse 75 is a fuse of the power battery module 70, and ensures that the loop current is not too large. The first MBD switch 13 and the second MBD switch 73 are disposed on two opposite sides of the casing 10, the low-voltage power socket 11 and the high-voltage output interface 14 are disposed on the same side of the casing 10, wherein the low-voltage power socket 11 is also a communication interface, and the control board 20 is provided with a CAN communication interface 23, which is in communication connection with a CAN bus through the low-voltage power socket 11. In addition, the two opposite sides of the housing 10 are provided with the anti-explosion breather valves 120, and on one hand, the anti-explosion breather valves 120 can be timely switched on when the internal air pressure of the housing 10 reaches a certain value, so that the internal air pressure is released, further damage caused by air pressure aggregation is prevented, and the safety of the auxiliary energy integration system is ensured; meanwhile, when the air pressure in the shell 10 is low, the shell can be conducted in time, and the situation that the shell is shriveled due to too low air pressure in the shell 10 is avoided, so that potential safety hazards are caused. The case 10 is provided with a bonding harness 130, and the bonding harness 130 can ensure EMC performance and grounding performance of the auxiliary energy integrated system.
Specifically, the theory of operation of auxiliary energy system does: the low-voltage input end 21 provides low-voltage power for the control panel 20 through the low-voltage power socket 11, the control panel 20 starts to work after receiving the low-voltage power, and collects and controls the state of the power panel 30, when the control panel 20 receives a high-voltage command sent by the vehicle control unit VCU, the control panel 20 starts to execute a high-voltage flow on the auxiliary energy system, namely the control panel 20 performs the following parallel control flow,
pre-charging a power battery: the control panel 20 controls the main negative contactor 74 of the power battery to be attracted, the power battery pre-charging contactor 77 is controlled to be attracted after 50ms, the absolute value of the difference between the voltage at the two ends of the output side pre-charging capacitor 53 and the total voltage of the power battery is monitored to be less than 10V in 3S, if not, the pre-charging is judged to be failed, and the control panel 20 controls the main negative contactor 74 of the power battery and the power battery pre-charging contactor 77 to be disconnected; if yes, judging that the pre-charging is successful, controlling the main positive contactor 76 of the power battery to attract by the control board 20, and disconnecting the pre-charging power battery pre-charging contactor 77 after 100ms, so that the pre-charging of the power battery is finished;
pre-charging a super capacitor:
the control panel 20 controls the super capacitor negative contactor 44 to be attracted, controls the pre-charging contactor 46 to be attracted after 50ms, monitors that the absolute value of the difference between the voltage at two ends of the input side pre-charging capacitor 52 and the total voltage of the super capacitor is less than 10V in 3S, and if not, judges that the pre-charging fails, the control panel 20 controls the super capacitor negative contactor 44 and the pre-charging contactor 46 to be disconnected; if yes, judging that the pre-charging is successful, controlling the super capacitor anode contactor 45 to attract by the control board 20, disconnecting the pre-charging contactor 46 after 100ms, and finishing the pre-charging of the super capacitor;
thus, the high-voltage function on the auxiliary energy integrated system is completed.
After the high voltage is finished, when the control board 20 receives a discharge instruction sent by the vehicle control unit VCU, the control board 20 actively adjusts the output voltage of the boost circuit in the boost-buck module 51 according to the discharge power, so as to realize the function of discharging the super capacitor in the auxiliary energy system to the outside.
After the high voltage is finished, when the control board 20 receives a charging instruction sent by the vehicle control unit VCU, the control board 20 actively adjusts the output voltage of the step-down circuit in the step-up/step-down module 51 according to the charging power, so as to realize the charging function of the super capacitor in the auxiliary energy system.
Whether the step-up/step-down module 51 performs step-up or step-down is determined by the charging/discharging state and the voltages of the high-voltage input end and the high-voltage output end of the step-up/step-down module 51; during charging, the input voltage of the high-voltage input end of the voltage boosting and reducing module 51 is higher than that of the high-voltage output end, the voltage boosting and reducing module 51 is adopted for boosting at the moment, the input voltage of the high-voltage input end of the voltage boosting and reducing module 51 is lower than that of the high-voltage output end, and the voltage reducing and reducing module 51 is adopted for reducing the voltage at the moment; during discharging, the high-voltage input end input voltage of the buck-boost module 51 is higher than the high-voltage output end, the buck-boost module 51 is adopted to reduce the voltage at the moment, the high-voltage input end input voltage of the buck-boost module 51 is lower than the high-voltage output end, and the buck-boost module 51 is adopted to boost the voltage at the moment. Wherein, the first high voltage output of the buck-boost module 51 with the second high voltage output constitutes the high voltage output of the buck-boost module 51 jointly, the first high voltage input of the buck-boost module 51 with the second high voltage input constitutes the high voltage input of the buck-boost module 51 jointly.
Auxiliary energy system assembles into a mixed auxiliary energy system with original super capacitor system, two-way DC and power battery, and than three disconnect-type system, this auxiliary energy system's volume and weight all are showing and are reducing, have saved a large amount of spaces of arranging for the hydrogen energy car, still are showing the manufacturing cost who has reduced the hydrogen energy car, have improved economic performance, still have high-pressure security performance strong and practicality advantage such as strong.
In the above embodiment, the housing 10 is provided with the coolant water pipe 100 therein, the coolant water pipe 100 is laid below the power board 30, and the housing 10 is provided with the coolant inlet 101 and the coolant outlet 102, wherein the coolant inlet 101 is communicated with one end of the coolant water pipe 100, and the coolant outlet 102 is communicated with the other end of the coolant water pipe 100.
The utility model discloses in, in the coolant liquid got into casing 10 through coolant liquid entry 101, inside carrying out abundant heat exchange back at casing 10 to the IGBT on the power board 30, first electric capacity monomer 41, second electric capacity monomer 42, first power battery 71 and second power battery 72 high pressure parts heat dissipation back, coolant liquid rethread coolant liquid export 102 output, in order to reach the refrigerated purpose of the integrated two unification system cooling function of auxiliary energy.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (4)

1. A fuel cell hydrogen energy automobile auxiliary energy system is characterized by comprising a control board (20), a power board (30), a super capacitor module (40), a bidirectional DC module (50), a power battery module (70), a first copper bar (60) and a second copper bar (110);
the control board (20) is electrically connected with the power board (30), and the super capacitor module (40), the bidirectional DC module (50) and the power battery module (70) are integrally arranged on the power board (30);
the super capacitor module (40) comprises a first capacitor single body (41), a second capacitor single body (42), a pre-charging circuit fuse (43), a super capacitor negative contactor (44), a super capacitor positive contactor (45), a pre-charging contactor (46) and a pre-charging resistor (47);
the bidirectional DC module (50) comprises a buck-boost module (51), an input side pre-charging capacitor (52) and an output side pre-charging capacitor (53);
the power battery module (70) comprises a first power battery (71), a second power battery (72), a second MBD switch (73), a power battery main negative contactor (74), a power battery loop fuse (75), a power battery main positive contactor (76), a power battery pre-charging contactor (77), a power battery pre-charging resistor (78) and a third copper bar (79);
the first capacitor unit (41) is connected with the second capacitor unit (42) in series, the anode of the second capacitor unit (42) is electrically connected with the anode of the pre-charging circuit fuse (43), the cathode of the pre-charging circuit fuse (43) is electrically connected with one end of the pre-charging contactor (46), the other end of the pre-charging contactor (46) is electrically connected with the anode of the pre-charging resistor (47), one end of a super capacitor anode contactor (45) is electrically connected with one end of the pre-charging contactor (46), the other end of the super capacitor anode contactor is electrically connected with the cathode of the pre-charging resistor (47), one end of a super capacitor cathode contactor (44) is electrically connected with the cathode of the first capacitor unit (41), the cathode of a first copper bar (60) is respectively electrically connected with the other end of the super capacitor cathode contactor (44), the cathode of the input side pre-charging capacitor (52) and the second high-voltage input end of the boost-boost module (51), the positive electrode of the output side pre-charging capacitor (53) is electrically connected with the negative electrode of the pre-charging resistor (47) and the first high-voltage input end of the voltage boosting and reducing module (51), and the positive electrode and the negative electrode of the output side pre-charging capacitor are electrically connected with the first high-voltage output end and the second high-voltage output end of the voltage boosting and reducing module (51) respectively;
the first power battery (71), the second MBD switch (73), the third copper bar (79) and the second power battery (72) are sequentially connected in series, one end of a power battery pre-charging contactor (77) is electrically connected with the positive pole of the first power battery (71), the other end of the power battery pre-charging contactor is electrically connected with the positive pole of the power battery pre-charging resistor (78), one end of a power battery main positive contactor (76) is electrically connected with the positive pole of the first power battery (71), the other end of the power battery main positive contactor is electrically connected with the negative pole of the power battery pre-charging resistor (78), one end of a power battery main negative contactor (74) is electrically connected with the negative pole of the second power battery (72), the other end of the power battery main positive contactor is electrically connected with the negative pole of the power battery circuit fuse (75), the negative pole of the second copper bar (110) is respectively electrically connected with the positive pole of the power battery circuit fuse (75) and the negative pole of the output side pre-charging capacitor (53), the positive electrode of the power battery pre-charging resistor is electrically connected with the negative electrode of the power battery pre-charging resistor (78) and the positive electrode of the output side pre-charging capacitor (53).
2. The auxiliary energy system of the fuel cell hydrogen energy automobile of claim 1, further comprising a housing (10), wherein the control board (20), the power board (30), the super capacitor module (40) and the bidirectional DC module (50) are integrally disposed in the housing (10), the control board (20) has a low voltage input end (21), the housing (10) is provided with a low voltage power socket (11), a first MBD switch (13), a second MBD switch (73) and a high voltage output interface (14), the low voltage power socket (11) is electrically connected to the low voltage input end (21), and the high voltage output interface (14) is electrically connected to the first high voltage output end and the second high voltage output end of the buck-boost module (51), respectively.
3. The auxiliary energy system of the fuel cell hydrogen energy automobile according to claim 2, characterized in that the explosion-proof breather valve (120) is arranged on two opposite sides of the shell (10).
4. The auxiliary energy system of the fuel cell hydrogen-powered automobile according to claim 2, wherein a cooling liquid water pipe (100) is arranged inside the housing (10), the cooling liquid water pipe (100) is laid below the power plate (30), a cooling liquid inlet (101) and a cooling liquid outlet (102) are arranged on the housing (10), wherein the cooling liquid inlet (101) is communicated with one end of the cooling liquid water pipe (100), and the cooling liquid outlet (102) is communicated with the other end of the cooling liquid water pipe (100).
CN202023063359.3U 2020-12-18 2020-12-18 Fuel cell hydrogen energy automobile auxiliary energy system Active CN214929034U (en)

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Application Number Priority Date Filing Date Title
CN202023063359.3U CN214929034U (en) 2020-12-18 2020-12-18 Fuel cell hydrogen energy automobile auxiliary energy system

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Application Number Priority Date Filing Date Title
CN202023063359.3U CN214929034U (en) 2020-12-18 2020-12-18 Fuel cell hydrogen energy automobile auxiliary energy system

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CN214929034U true CN214929034U (en) 2021-11-30

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