Large-electric-quantity and large-range-extension high-voltage power distribution system and mine truck

Abstract

The high-voltage power distribution system comprises a power battery system, a battery junction box, a direct-current quick charging module, a range-extending high-voltage system, a five-in-one controller, a two-in-one controller and a power utilization module, the power utilization module comprises a near gearbox motor, a far gearbox motor, a storage battery, a steering oil pump, an inflating pump and an integrated thermal management system; the power battery system is connected with the battery junction box through a high-voltage wire harness; the battery junction box is respectively connected with the direct-current fast charging module, the five-in-one controller, the two-in-one controller, the range-extending high-voltage system and the integrated thermal management system through high-voltage wire harnesses; the five-in-one controller is respectively connected with the near gearbox motor, the storage battery, the steering oil pump and the blast pump through high-voltage wire harnesses, and the two-in-one controller is connected with the far gearbox motor through a high-voltage wire harness; the range-extending high-voltage system comprises a range extender motor controller GCU and a range extender FIGS which are connected through a high-voltage wire harness. The utility model further discloses a mine truck which is high in adaptability.

Description

TECHNICAL FIELD

[0001] The utility model relates to mine car high pressure power distribution technical field, especially a kind of big electric quantity big range increasing high pressure power distribution system and mine car. BACKGROUND

[0002] New energy type mine car in existing market, pure electric mine car is more applied in the economic benefit under the working condition of heavy load, but working condition requirement is high;Big electric quantity small range increasing mine car has the problem of slow charging;Small electric quantity big range increasing mine car economic benefit is not good, customer is not accepted.

[0003] Now need a kind of big electric quantity big range increasing mine car to solve the above problems, when SOC is greater than 20%, pure electric drive vehicle;SOC is less than 20%, range increasing system drives vehicle. To meet the needs of various working conditions, while meeting the purpose of fast charging, pure electric or range extender can drive vehicle alone. UTILITY MODEL CONTENT

[0004] To solve the problems in the prior art, the utility model aims at providing a kind of big electric quantity big range increasing high pressure power distribution system and mine car, the utility model can use pure electric, range extending drive vehicle alone, meet heavy load, heavy load and other various working conditions, strong adaptability.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of: a kind of big electric quantity big range increasing high pressure power distribution system, comprising: including power battery system, battery terminal box, direct current fast charging module, range increasing high voltage system, five-in-one controller, two-in-one controller and power module;The power module includes near gearbox motor, far gearbox motor, battery, steering oil pump, air pump, integrated thermal management system, the power battery system is connected with the battery terminal box by high voltage wire harness;The battery terminal box is connected with direct current fast charging module, five-in-one controller, two-in-one controller, range increasing high voltage system, integrated thermal management system respectively by high voltage wire harness;The five-in-one controller is connected with near gearbox motor, battery, steering oil pump, air pump respectively by high voltage wire harness, the two-in-one controller is connected with far gearbox motor by high voltage wire harness;Range increasing high voltage system includes range extender motor controller GCU and range extender FIGS connected by high voltage wire harness.

[0006] As a further improvement of the utility model, the high-voltage component of the integrated thermal management system includes an air conditioner compressor, a water heating PTC and an integrated thermal management DCDC, the circuit of the air conditioner compressor includes a main positive relay K9 and a pre-charging circuit connected in parallel with the main positive relay K9, the pre-charging circuit includes a pre-charging relay K10 and a pre-charging resistor R2 connected in series, the pre-charging circuit and the main drive main positive contactor K9 are connected with a battery junction box high-voltage fuse F8 respectively, and the circuit of the air conditioner compressor is provided with a high-voltage fuse F9, the integrated thermal management DCDC is used for low-voltage power distribution of the integrated thermal management system, and the circuit is provided with a high-voltage fuse F10, and the water heating PTC is used for heating the power battery system and providing warm air for the cab, and the circuit is provided with a high-voltage fuse F11.

[0007] As a further improvement of the utility model, the direct current fast charging module includes four branch fast charging.

[0008] As a further improvement of the utility model, the battery junction box includes a manual maintenance switch MSD assembly, a current sensor assembly and a battery management system BMS, a relay assembly and a high-voltage fuse assembly connected in series, the relay assembly includes a fast charging positive relay K1 connected in series with the positive electrode of the power battery system, a fast charging positive relay K2, a main positive relay K3, an integrated thermal management relay K5 and a fast charging negative relay K6 connected in series with the negative electrode of the power battery system, a fast charging negative relay K7 and a main negative relay K8, the high-voltage fuse assembly includes fast charging positive high-voltage fuses F1-F4, main positive circuit high-voltage fuses F5 and F6, a range-extending main positive circuit high-voltage fuse F7 and an integrated thermal management system high-voltage fuse F8, the manual maintenance switch MSD assembly is arranged between the positive electrode of the power battery system and the relay assembly and includes a plurality of manually maintenance switches MSD arranged in parallel, the current sensor assembly is arranged between the negative electrode of the power battery system and the relay assembly and includes a plurality of current sensors arranged in parallel, each current sensor is connected with the battery management system BMS, and the battery management system BMS is used for controlling the closing or opening of the relay.

[0009] As a further improvement of the utility model, the battery junction box further includes a pre-charging circuit arranged in parallel at both ends of the main positive relay K3, and the pre-charging circuit includes a pre-charging relay K4 and a pre-charging resistor R1 connected in series.

[0010] As a further improvement of the utility model, the five-in-one controller comprises an MCU module, a DCDC module, a tire pump DCAC module and a steering oil pump DCAC module; the MCU module is used for driving the near gearbox motor; the loop comprises a main drive main positive relay K12 and a main drive pre-charge loop connected in parallel with the main drive main positive relay K12; the main drive pre-charge loop comprises a diode D1, a main drive pre-charge relay K11 and a main drive pre-charge resistor R3 connected in series; the main drive pre-charge loop and the main drive main positive contactor K12 are connected with a battery junction box main positive loop high-voltage fuse F5; the DCDC module, the tire pump DCAC module and the steering oil pump DCAC module are connected with the main loop and the pre-charge loop arranged in parallel; the main loop comprises a positive relay K14; the pre-charge loop comprises a diode D2, a pre-charge relay K13 and a pre-charge resistor R4 connected in series; the pre-charge loop and the main positive contactor K14 are connected with the battery junction box high-voltage fuse F5; the DCDC module is used for low-voltage charging of the 24V storage battery and low-voltage power distribution of the whole vehicle; the loop is provided with a high-voltage fuse F12; the tire pump DCAC module is used for driving the tire pump; the loop is provided with a high-voltage fuse F13; the steering oil pump DCAC module is used for the steering oil pump; and the loop is provided with a high-voltage fuse F14.

[0011] As a further improvement of the utility model, the two-in-one controller comprises an MCU module; the MCU module is used for driving the far gearbox motor; the loop comprises a main positive relay K16 and a pre-charge loop connected in parallel with the main positive relay K16; the pre-charge loop comprises a diode D3, a pre-charge relay K15 and a pre-charge resistor R5 connected in series; and the pre-charge loop and the main drive main positive contactor K16 are connected with the battery junction box high-voltage fuse F6.

[0012] As a further improvement of the utility model, the range-extending high-voltage system comprises a range-extender motor controller GCU and a range-extender FIGS connected through two groups of three-phase high-voltage wire harnesses.

[0013] The utility model also provides a mine car which comprises the large electricity large range-extending high-voltage power distribution system.

[0014] The utility model has the advantages of:

[0015] 1. The large electricity large range-extending mine car can be used independently for pure electric and range-extending driving vehicles, meets various working conditions such as heavy load down and heavy load up, and has strong adaptability;

[0016] 2. The four-gun direct-current fast charging mode is adopted, the mine car charging time is effectively reduced, the operation efficiency on the mine is improved, and the use cost is reduced;

[0017] 3. The integrated heat management system design is energy-saving, efficient and convenient to arrange;

[0018] 4. The pre-charge circuit of the all-in-one controller is provided with a diode, so that after the pre-charge is completed, the reverse current generated instantaneously when the pre-charge relay is disconnected is prevented from flowing into the main circuit, and safety and reliability are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a high-voltage power distribution principle diagram in the embodiment of the utility model;

[0020] Figure 2 It is a connection diagram of the power battery system and the battery terminal box in the embodiment of the utility model;

[0021] Figure 3 It is a high-voltage power distribution principle diagram when the pure electric drive vehicle in the embodiment of the utility model;

[0022] Figure 4 It is a high-voltage power distribution principle diagram when the extended-range high-voltage system drive vehicle in the embodiment of the utility model;

[0023] Figure 5 It is a local principle diagram of the battery terminal box in the embodiment of the utility model;

[0024] Figure 6 It is a local principle diagram of the five-in-one controller in the embodiment of the utility model;

[0025] Figure 7 It is a local principle diagram of the two-in-one controller in the embodiment of the utility model;

[0026] Figure 8 It is a local principle diagram of the integrated heat management system in the embodiment of the utility model;

[0027] Figure 9 It is a local principle diagram of the extended-range high-voltage system in the embodiment of the utility model;

[0028] Figure 10 It is a VCU, BMS, RCU and power distribution module information interaction diagram in the embodiment of the utility model. DETAILED DESCRIPTION

[0029] The embodiments of the utility model will be described in detail below with reference to the drawings.

[0030] EMBODIMENT

[0031] As Figure 1 and Figure 2As shown, a large power and large range high-voltage power distribution system includes a power battery system, a battery terminal box, a direct current fast charging module, a range extending high-voltage system, a five-in-one controller, and a two-in-one controller. The power consumption module includes a near gearbox motor, a far gearbox motor, a storage battery, a steering oil pump, a pump, and an integrated thermal management system. The power battery system is connected to the battery terminal box through a high-voltage wire harness. The battery terminal box is connected to the direct current fast charging module, the five-in-one controller, the two-in-one controller, the range extending high-voltage system, and the integrated thermal management system through high-voltage wire harnesses. The direct current fast charging module includes four branch fast charging, which can achieve the purpose of fast power supply. The integrated thermal management system includes an air conditioner compressor, a water heating PTC, and an integrated thermal management DCDC, which can achieve the purposes of energy saving, high efficiency, integration, and simple arrangement. The five-in-one controller is connected to the near gearbox motor, the storage battery, the steering oil pump, and the pump through high-voltage wire harnesses. The two-in-one controller is connected to the far gearbox motor through a high-voltage wire harness. The range extending high-voltage system includes a range extender motor controller GCU and a range extender FIGS, which are connected through a high-voltage wire harness. The high-voltage power distribution system controls the power output to the power consumption module through the BMS, the vehicle controller VCU, and the range extender motor controller RCU.

[0032] The power battery system is a four-branch high-voltage output circuit, which can meet the demand of driving a vehicle with high power. The direct current fast charging module includes four branch fast charging, which can achieve the purpose of fast power supply.

[0033] As shown in Figure 3 , it is a high-voltage power distribution system principle diagram for a pure electric vehicle, at this time the vehicle energy is provided by the power battery system. As shown in Figure 4 , it is a high-voltage power distribution principle diagram for a range extending high-voltage system driven vehicle, at this time the vehicle energy is provided by the range extending high-voltage system.

[0034] As shown in Figure 5 , it is a local principle diagram of the battery terminal box. The battery terminal box includes a battery management system BMS, a plurality of high-voltage relays, a plurality of high-voltage fuses, a plurality of manual maintenance switches MSD, and a current sensor. The BMS system controls the attraction or disconnection of a plurality of relays. The relay assembly includes a fast charging positive relay K1 connected in series with the positive electrode of the power battery system, a fast charging positive relay K2, a main positive relay K3, an integrated thermal management relay K5, a fast charging negative relay K6 connected in series with the negative electrode of the power battery system, a fast charging negative relay K7, and a main negative relay K8.

[0035] The BMS system controls the pre-charge circuit to pre-charge, and the pre-charge circuit comprises a pre-charge relay K4 and a pre-charge resistor R1; when the BMS system receives an instruction, the BMS system controls the pre-charge relay K4 to be closed and starts pre-charge according to the specific instruction, and the pre-charge relay K4 is disconnected after the pre-charge is completed.

[0036] The fast-charge positive electrode relay K1, the fast-charge positive electrode relay K2, the main positive relay K3 and the integrated thermal management relay K5 positive circuit are in parallel design, and the fast-charge negative electrode relay K6, the fast-charge negative electrode relay K7 and the main negative relay K8 are also in parallel design. When the BMS system receives an instruction, the BMS system controls the closing or opening of the above-mentioned relays according to the specific instruction to realize the connection or disconnection of a single circuit or all circuits.

[0037] The high-voltage insurance assembly comprises fast-charge positive high-voltage insurance F1-F4, main positive circuit high-voltage insurance F5 and F6, range-increasing main positive circuit high-voltage insurance F7 and integrated thermal management system high-voltage insurance F8; the MSD assembly comprises MSD1-MSD5, five MSDs are connected in parallel through a copper bar to achieve the purpose of shunting, so that the discharge circuit is safer and more reliable. The current sensor is connected with the BMS system signal. Multiple current sensors are arranged between the high-voltage main negative contactor K6, the fast-charge negative electrode relay K7 and the fast-charge negative electrode relay K8; the BMS system collects the total current signal on the main circuit through the current sensor, and the BMS system sends the VCU shared message through the whole vehicle CAN network to provide a basis for the whole vehicle control.

[0038] As shown in Figure 6 , it is a partial principle schematic diagram of a five-in-one controller. The five-in-one controller comprises an MCU module, a DCDC module, a tire inflation pump DCAC module and a steering oil pump DCAC module.

[0039] The MCU module (main drive motor controller) is used for driving the near gearbox motor, and the circuit thereof comprises a main drive main positive relay K12; the main drive pre-charging circuit comprises a diode D1, a main drive pre-charging relay K11 and a main drive pre-charging resistor R3. The VDC positive pole of the battery module is connected with the battery junction box main positive circuit high-voltage fuse F5 through the diode D1, the pre-charging relay K11, the main drive pre-charging resistor R3 and the main drive main positive contactor K12 respectively, pre-charging is performed after receiving the whole vehicle control instruction, after the pre-charging is completed, the main drive main positive contactor K12 is turned on, the main drive pre-charging relay K11 is turned off, the high-voltage fuse F5 is connected with the MCU module (main drive motor controller) in the five-in-one internal part, the main drive motor controller is connected with the near gearbox motor; at the same time, the battery junction box main negative relay K6 is closed, the negative pole of the MCU module (main drive motor controller) in the five-in-one internal part is connected with the VDC negative pole of the battery module through the main negative relay K6, and a circuit is formed. As a preferred, the pre-charging circuit is provided with the diode D1, so that reverse current generated instantaneously when the pre-charging relay is turned off is prevented from flowing into the main circuit after the pre-charging is completed.

[0040] The DCDC module, the air pump DCAC module and the steering oil pump DCAC module share a main circuit and a pre-charging circuit, and the use cost is effectively reduced. The DCDC module, the air pump DCAC module and the steering oil pump DCAC module are each provided with a high-voltage fuse in a parallel branch circuit, and when an abnormality occurs in one of the circuits, the safe use of other branch circuits is not affected. The main circuit comprises a positive pole relay K14 and a pre-charging circuit, the pre-charging circuit comprises a diode D2, a pre-charging relay K13 and a pre-charging resistor R4; the VDC positive pole of the battery module is connected with the battery junction box high-voltage fuse F5 through the diode D2, the pre-charging relay K13, the pre-charging resistor R4 and the main positive contactor K14 respectively, pre-charging is performed after receiving the whole vehicle control instruction, after the pre-charging is completed, the main positive contactor K14 is turned on, the pre-charging relay K13 is turned off, the high-voltage fuse F5 is connected with the high-voltage fuses of the DCDC module, the air pump DCAC module and the steering oil pump DCAC module in parallel through the main positive contactor K14; at the same time, the VDC negative pole of the negative pole battery module of the DCDC module, the air pump DCAC module and the steering oil pump DCAC module is connected, and a circuit is formed.

[0041] The pre-charging circuit is provided with the diode D2, so that reverse current generated instantaneously when the pre-charging relay is turned off is prevented from flowing into the main circuit after the pre-charging is completed.

[0042] The DCDC module is used for low-voltage charging of the 24V storage battery and low-voltage power distribution of the whole vehicle, and the circuit thereof is provided with a high-voltage fuse F12; the air pump DCAC module is used for driving the air pump, and the circuit thereof is provided with a high-voltage fuse F13; the steering oil pump DCAC module is used for the steering oil pump, and the circuit thereof is provided with a high-voltage fuse F14.

[0043] like Figure 7 The diagram shows a partial schematic of the two-in-one controller, which includes an MCU module. The MCU module drives the remote transmission motor, and its circuit includes a main positive relay K16. The pre-charge circuit includes a diode D3, a pre-charge relay K15, and a pre-charge resistor R5. The positive VDC terminal of the battery module is connected to the high-voltage fuse F6 in the battery junction box via diode D3, pre-charge relay K15, main drive pre-charge resistor R5, and main drive main positive contactor K16. Upon receiving a vehicle control command, pre-charging is performed. After pre-charging is complete, the main drive main positive contactor K16 is closed, the main drive pre-charge relay K15 is open, and the high-voltage fuse F6 is connected to the MCU module (main drive motor controller) inside the two-in-one controller. The main drive motor controller is connected to the remote transmission motor. Simultaneously, the negative main relay K6 in the battery junction box is closed, and the negative terminal of the MCU module (main drive motor controller) inside the two-in-one controller is connected to the negative VDC terminal of the battery module via the negative relay K6, forming a circuit.

[0044] The precharge circuit is equipped with diode D3 to prevent the reverse current generated momentarily when the precharge relay is disconnected from flowing into the main circuit after the precharge is completed.

[0045] like Figure 8 The diagram shown is a partial schematic of the integrated thermal management system. The high-pressure components of the integrated thermal management system include an air conditioning compressor, a water heating PTC, and an integrated thermal management DC-DC converter.

[0046] The air conditioning compressor circuit includes a main positive relay K9, and the pre-charge circuit includes a pre-charge relay K10 and a pre-charge resistor R2. The VDC positive terminal of the battery module is connected to the high-voltage fuse F8 of the battery junction box through the pre-charge relay K10, the main drive pre-charge resistor R2, and the main drive main positive contactor K9. After receiving the vehicle control command, pre-charging is performed. After pre-charging is completed, the main drive main positive contactor K9 is turned on, the main drive pre-charge relay K10 is turned off, and the high-voltage fuse F8 is connected to the positive terminal of the air conditioning compressor. At the same time, the negative terminal of the air conditioning compressor is connected to the negative VDC terminal of the power battery, forming a circuit.

[0047] The integrated thermal management DC-DC converter is used to provide low-voltage power distribution to the integrated thermal management system, and its circuit is equipped with a high-voltage fuse F10; the water-heating PTC converter is used to heat the power battery system and provide warm air to the cab, and its circuit is equipped with a high-voltage fuse F11.

[0048] like Figure 9 The diagram shown is a partial schematic of the range extender high voltage system, which includes the range extender motor controller GCU and the range extender FIGS.

[0049] The range extender motor controller GCU, the range extender main positive 1 and the range extender main positive 2 are connected with the battery terminal box high-voltage fuse F7; the range extender main negative 1 and the range extender main negative 2 are connected with the battery terminal box main negative 1 to main negative 4 through copper bars.

[0050] The range extender FIGS and the range extender motor controller GCU are connected through two groups of three-phase high-voltage wire harnesses.

[0051] As shown in Figure 10 VCU, BMS, RCU and power distribution module information interaction schematic diagram, according to the specific situation of the vehicle, VCU, BMS, RCU information interaction, through the vehicle CAN bus, control all the relay attraction or open.

[0052] The above-described embodiments only express the specific implementation of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application.

Claims

1. A large power and large extended range high voltage power distribution system, characterized in that, Comprise: Power battery system, battery terminal box, direct current fast charging module, range extending high voltage system, five-in-one controller, two-in-one controller and power module; the power module comprises near gearbox motor, far gearbox motor, storage battery, steering oil pump, air pump and integrated thermal management system; the power battery system is connected with the battery terminal box through high voltage wire harness; the battery terminal box is connected with direct current fast charging module, five-in-one controller, two-in-one controller, range extending high voltage system and integrated thermal management system through high voltage wire harness respectively; the five-in-one controller is connected with near gearbox motor, storage battery, steering oil pump and air pump through high voltage wire harness respectively; the two-in-one controller is connected with far gearbox motor through high voltage wire harness; the range extending high voltage system comprises range extender motor controller GCU and range extender FIGS connected through high voltage wire harness.

2. The high-voltage power distribution system of claim 1, wherein, The high voltage components of the integrated thermal management system comprise air conditioner compressor, water heating PTC and integrated thermal management DCDC; the circuit of the air conditioner compressor comprises main positive relay K9 and pre-charging circuit connected in parallel with the main positive relay K9; the pre-charging circuit comprises pre-charging relay K10 and pre-charging resistor R2 connected in series; the pre-charging circuit and the main drive main positive contactor K9 are connected with the battery terminal box high voltage fuse F8 respectively; the circuit of the air conditioner compressor is provided with high voltage fuse F9; the integrated thermal management DCDC is used for low voltage power distribution for the integrated thermal management system; the circuit is provided with high voltage fuse F10; the water heating PTC is used for heating the power battery system and providing warm air for the cab; the circuit is provided with high voltage fuse F11.

3. The high-voltage power distribution system of claim 1, wherein, The direct current fast charging module comprises four branch fast charging.

4. The high-voltage power distribution system of claim 1, wherein, The battery terminal box comprises manual maintenance switch MSD assembly, current sensor assembly and battery management system BMS, relay assembly and high voltage fuse assembly connected in series; the relay assembly comprises fast charging positive relay K1, fast charging positive relay K2, main positive relay K3, integrated thermal management relay K5 connected in series with the positive electrode of the power battery system, and fast charging negative relay K6, fast charging negative relay K7, main negative relay K8 connected in series with the negative electrode of the power battery system; the high voltage fuse assembly comprises fast charging positive high voltage fuse F1-F4, main positive circuit high voltage fuse F5 and F6, range extending main positive circuit high voltage fuse F7 and integrated thermal management system high voltage fuse F8; the manual maintenance switch MSD assembly is arranged between the positive electrode of the power battery system and the relay assembly and comprises a plurality of parallelly arranged manual maintenance switches MSD; the current sensor assembly is arranged between the negative electrode of the power battery system and the relay assembly and comprises a plurality of parallelly arranged current sensors; each current sensor is connected with the battery management system BMS in signal; the battery management system BMS is used for controlling the closing or opening of the relay.

5. The high-voltage power distribution system of claim 4, wherein, The battery terminal box further comprises pre-charging circuit connected in parallel at both ends of the main positive relay K3; the pre-charging circuit comprises pre-charging relay K4 and pre-charging resistor R1 connected in series.

6. The high-voltage power distribution system of claim 4, wherein, The five-in-one controller comprises an MCU module, a DCDC module, a tire pump DCAC module and a steering oil pump DCAC module; the MCU module is used to drive a near gearbox motor, and a loop comprises a main drive main positive relay K12 and a main drive pre-charge loop connected in parallel with the main drive main positive relay K12, the main drive pre-charge loop comprises a diode D1, a main drive pre-charge relay K11 and a main drive pre-charge resistor R3 connected in series; the main drive pre-charge loop and the main drive main positive contactor K12 are connected with a battery junction box main positive loop high-voltage fuse F5; the DCDC module, the tire pump DCAC module and the steering oil pump DCAC module are connected with a main loop and a pre-charge loop arranged in parallel, the main loop comprises a positive relay K14, and the pre-charge loop comprises a diode D2, a pre-charge relay K13 and a pre-charge resistor R4 connected in series; the pre-charge loop and the main positive contactor K14 are connected with the battery junction box high-voltage fuse F5; the DCDC module is used to charge a 24V storage battery at low voltage and to distribute power at low voltage for the whole vehicle, and a loop is provided with a high-voltage fuse F12; the tire pump DCAC module is used to drive a tire pump, and a loop is provided with a high-voltage fuse F13; the steering oil pump DCAC module is used to drive a steering oil pump, and a loop is provided with a high-voltage fuse F14.

7. The high-voltage power distribution system of claim 4, wherein, The two-in-one controller comprises an MCU module; the MCU module is used to drive a far gearbox motor, and a loop comprises a main positive relay K16 and a pre-charge loop connected in parallel with the main positive relay K16, the pre-charge loop comprises a diode D3, a pre-charge relay K15 and a pre-charge resistor R5 connected in series, and the pre-charge loop and the main drive main positive contactor K16 are connected with a battery junction box high-voltage fuse F6.

8. The high-voltage power distribution system of claim 4, wherein, The extended-range high-voltage system comprises an extended-range motor controller GCU and an extended-range FIGS connected by two groups of three-phase high-voltage wire harnesses. 9.A mine truck comprising the large-capacity and large-range high-voltage power distribution system according to any one of claims 1-8.

Images