CN103770660A - Explosion-proof pure electric vehicle for operation in underground coal mine - Google Patents
Explosion-proof pure electric vehicle for operation in underground coal mine Download PDFInfo
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- CN103770660A CN103770660A CN201410062211.8A CN201410062211A CN103770660A CN 103770660 A CN103770660 A CN 103770660A CN 201410062211 A CN201410062211 A CN 201410062211A CN 103770660 A CN103770660 A CN 103770660A
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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
- 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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Abstract
The invention relates to an explosion-proof pure electric vehicle for operation in an underground coal mine. The explosion-proof pure electric vehicle comprises an H-shaped frame which is fastened to a drive axle at the bottom of the rear side of the frame, wheels connected to the two ends of a half shaft of the drive axle, respectively, explosion-proof power battery banks arranged at the two sides of the frame in front of and behind the drive axle, an explosion-proof high/low-voltage power distribution box arranged at one side of the frame between a driving cab and a compartment, an electric assembly of a steering/braking and cooling system arranged at the other side of the frame between the driving cab and the compartment, and a traction motor arranged between two transverse beams in front of the frame, wherein the output shaft of the traction motor is orderly connected with a speed reducer, a front transmission shaft, a parking brake and a rear transmission shaft, and the output end of the rear transmission shaft is in power connection with the input end of the drive axle. The explosion-proof pure electric vehicle is innovated in the aspects of the entire vehicle electric system and the battery explosion-proof technology, and the technology of the pure electric vehicle running on ground is combined with the explosion-proof requirement of operation in the underground coal mine, so that the explosion-proof pure electric vehicle is certainly convenient for daily use just as a diesel vehicle while zero emission is realized; besides, the explosion-proof pure electric vehicle meets the requirements of operation in the underground coal mine, and is a high-tech, safe and reliable vehicle.
Description
Technical field
The present invention relates to a kind of pure electric vehicle, particularly about a kind of explosion-proof pure electric vehicle for coal mine operation with I class and II class explosive-proof grade.
Background technology
At present, generally adopting diesel engine for the mine car under colliery is power, because diesel engine has exhaust emissions, so to the environment under ore deposit, be unfavorable for workman's working environment.Compared with fuel vehicle, battery-driven car has the advantages such as the little and maneuvering performance of noise and vibration is good.Although the pure electric automobile of ground run appears on the market, meet the explosion-proof pure electric automobile of coal mine operation also in conceptual phase, not product place in operation.Because coal mine gas relative concentration is higher, therefore can not simply road traveling pure electric vehicle be paid and carry out explosion-proof repacking.At present, the pure electric vehicle for coal mine operation explosion-proof proposed to very high requirement.Design and aly can meet requirement of explosion proof, and the explosion-proof pure electric vehicle that meets daily continual mileage is for energy-saving and emission-reduction and to improve coal workman's working environment all most important.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of explosion-proof pure electric vehicle for coal mine operation that can be applicable to I class and II class explosion-proof environment and meet daily continual mileage requirement.
For achieving the above object, the present invention takes following technical scheme: a kind of explosion-proof pure electric vehicle for coal mine operation, it is characterized in that, this explosion-proof pure electric vehicle comprises: a H type vehicle frame, one is fastenedly connected in the drive axle of bottom, described vehicle frame rear, two are connected to the wheel at the semiaxis two ends of described drive axle, some explosion-proof power battery groups that are arranged at vehicle frame both sides described in described drive axle forward-and-rearward, one is arranged at the high and low voltage electric distribution explosion-proof tank of described vehicle frame one side between operator's compartment and compartment, one is arranged at braking in a turn and the cooling system motorized assembly of the described vehicle frame opposite side between described operator's compartment and compartment, and the traction electric machine being arranged between two transverse beams in described vehicle frame front, the output shaft of the described traction electric machine one speed reducer that is linked in sequence, one front propeller shaft, one Parking Brake and a rear propeller shaft, the mouth power of described rear propeller shaft connects the input end of described drive axle, described explosion-proof power battery group comprises a battery anti-explosion case and some lithium ion battery, battery management subsystem, temperature sensor, battery branch mailbox electromagnetic valve and battery branch mailbox equalized maintenance sockets being arranged in described battery anti-explosion case, and described battery management subsystem connects both positive and negative polarity and the temperature sensor of lithium ion battery described in each, described high and low voltage electric distribution explosion-proof tank comprises an electrical explosion proof case and is integrated in the entire automobile electric system in described electrical explosion proof case, and described entire automobile electric system comprises entire car controller, traction motor controller, battery management system, helper motor controller, DC/DC high-low pressure converting unit, insulation detecting sensor, Smoke Detection sensor and charging socket, described entire car controller is electrically connected with described traction motor controller and battery management system respectively by CAN communication network, described battery management system is by the battery management subsystem contact in CAN communication network and described explosion-proof power battery group, be responsible for voltage and the temperature information of lithium ion battery in the described explosion-proof power battery group of monitoring, be responsible for the described charge states of lithium ion battery of estimation and state of health simultaneously, described explosion-proof power battery group is carried out to alarm and protection, and with described entire car controller communication, described entire car controller also accesses the key gear of vehicle, the signal of insulation detecting sensor, Smoke Detection sensor and gas detecting sensor, described traction motor controller accesses the signal of gear selecting switch, accelerator pedal sensor and the brake pedal sensor of vehicle, by CAN communication network, gear signal, acceleration pedal signal and brake pedal signal is sent to described entire car controller by described traction motor controller, described DC/DC high-low pressure converting unit is connected with the 24V A-battery of described explosion-proof power battery group and vehicle, described braking in a turn and cooling system motorized assembly comprise helper motor, hydraulic pressure four-in pump, cooling fan and cooling water radiator, described helper motor 1 is electrically connected the helper motor controller in described entire automobile electric system, and described helper motor controller is directly controlled described helper motor by relay and worked, one outputting axial power of described helper motor connects hydraulic pressure four-in pump, and another outputting axial power connects described cooling fan, cooling water radiator described in described cooling fan arranged outside, the first Hydraulic Pump in described hydraulic pressure four-in pump is connected and installed in respectively the running brake on described vehicle wheel limit and is installed on the described Parking Brake between forward and backward transmission shaft by brake boost hydraulic tubing, to form brake fluid pressure loop, the second Hydraulic Pump in described hydraulic pressure four-in pump is connected and installed in the electric direction varying device of operator's compartment bearing circle below by power steering hydraulic tubing, to form steering hydraulic loop, the third and fourth Hydraulic Pump in described hydraulic pressure four-in pump is connected respectively traction electric machine refrigerant fluid I/O port and traction motor controller refrigerant fluid I/O port by the cooling hydraulic tubing of traction electric machine and the cooling hydraulic tubing of traction motor controller, forms respectively cooling water circulation loop.
In a preferred embodiment, this explosion-proof pure electric vehicle has following two kinds of master modes:
1), in the time that CAN communication network can normally be worked, described traction motor controller receives gear signal, acceleration pedal signal and the brake pedal signal of vehicle, does not then carry out any processing, is transmitted to described entire car controller by CAN communication network; Simultaneously, the data that described entire car controller sends according to described traction motor controller, battery management system, insulation detecting sensor, Smoke Detection sensor and gas detecting sensor, the running state of moment monitoring vehicle: in the time judging that vehicle operating is normal, carry out car load power demand according to the gear signal of vehicle, acceleration pedal signal and brake pedal signal and calculate traction electric machine torque-demand, and give described traction motor controller by CAN communication network by traction electric machine torque-demand command routing, and then control described traction electric machine work; In the time judging that vehicle operating is abnormal, described entire car controller is taked corresponding control method according to different alarm content;
2) in the time that CAN communication network occurs disturbing or be wrong, described traction motor controller receives after gear signal, acceleration pedal signal and the brake pedal signal of vehicle, no longer sends to described entire car controller; Now, described traction motor controller sends torque-demand order according to the gear signal of vehicle, acceleration pedal signal and brake pedal signal to described traction electric machine voluntarily, controls traction electric machine work.
In a preferred embodiment, described battery anti-explosion case adopts " upper and lower " double-decker layout, and wherein lower box is independent explosion-proof battery cavities, and described lithium ion battery and temperature sensor are only arranged in inside; Upper box is placed separately is adapter cavity, equipment cavity and three cavitys of wire connection cavity, and described adapter cavity and described lower box UNICOM, in described lower box, the positive and negative busbar of lithium ion battery, voltage acquisition line and temperature acquisition line are received described equipment cavity by explosion-proof connecting terminals through walls between described adapter cavity and equipment cavity; In described equipment cavity, arrange described battery management subsystem, battery branch mailbox electromagnetic valve and battery branch mailbox equalized maintenance socket; In described equipment cavity, the power cable of the positive and negative busbar of lithium ion battery, battery management subsystem and CAN communication cable are received described wire connection cavity by the connecting terminals explosion-proof through walls between described equipment cavity and wire connection cavity, and are connected to outside described battery anti-explosion case by the anti-explosion loudspeaker mouth on described wire connection cavity.
In a preferred embodiment, described entire automobile electric system is divided into 24V low-voltage control circuit and 360V high voltage power circuit: when the key of vehicle is during in 1 file location, relay J 1 adhesive, described entire car controller, traction motor controller and battery management system power on, and described insulation detecting sensor, smoke monitoring sensor, gas monitor sensor and loudspeaker and rain brush power on; When the key of vehicle is during in 2 file location, relay J 2 adhesives, described traction electric machine, helper motor, hydraulic pressure four-in pump and DC/DC high-low pressure converting unit power on.
In a preferred embodiment, described running brake adopts the wet multi-disk brake of binary channel hydraulic assisting brake; Described Parking Brake adopts the Wet-type multi-disc centre brake of hydraulic booster spring energy-storage, and handles by hand control valve (HCV); Described electric direction varying device adopts circulating ball servo-hydraulic power steering.
In a preferred embodiment, described electrical explosion proof case is a rectangular box structure, and its side door adopts quick opening mechanism to coordinate explosion-proof faying face, and has the pressure power-off interlock design of opening the door; The top cover of described electrical explosion proof case can be opened, and is convenient to arrange each electrical equipment; The opposite side relative with described side door is provided with a flame proof wiring cabin in described electrical explosion proof case, and the side cover corresponding with described flame proof wiring cabin also can open, and is convenient to wiring and debugging; Described electrical explosion proof case is also provided with a water-cooling base plate, so that each electrical equipment in described electrical explosion proof case is carried out to radiating and cooling; Described electrical explosion proof case inside is provided with some reinforced ribs.
In a preferred embodiment, on the side door of described electrical explosion proof case, be also provided with LCDs, described LCDs is connected with described entire car controller by serial ports, described entire car controller sends operating data to described LCDs by serial ports, to show in real time each parameter state of vehicle.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the present invention adopts integrated type electric fluid pressure type force aid system for braking and steering boost system, drive a four-in pump by an explosion-proof helper motor, for force aid system for braking, steering boost system and 2 line cooling systems provide power, the pressure of each pipeline can regulate respectively as required.The power take-off shaft of helper motor is except driving four-in pump, and other end connects the cooling fan of car load radiator.The structure design of this integrated form has reduced the quantity of the explosion-proof helper motor of demand motive, and compact conformation is simple, can effectively reduce system and take up space and overall component weight, is convenient to arrange on car load.2, all subsystems of the present invention are provided with flameproof enclosure, and its degree of protection at least reaches IP55 level, have good explosion-proof performance.3, entire car controller of the present invention, electric machine controller, between battery management system and car load instrument, communicate to connect by CAN, for preventing that CAN network from affecting traffic safety while breaking down, the present invention will speed up pedal, brake pedal, the important informations such as gear selecting switch are linked into motor controller by analog quantity, by CAN network, above-mentioned important information is sent to entire car controller by motor controller, in the time that CAN network occurs disturbing or is wrong, directly control vehicle operation by motor controller, therefore guaranteed that vehicle safe driving is to trouble-shooting place, avoid stopping up tunnel.4, the present invention is integrated into charged each unit unification in an explosion-proof tank, has saved arrangement space, has alleviated explosion-proof tank weight.And the system integration together, be convenient to maintenance and protection.This explosion-resistant enclosure degree of protection is at least IP55, can the parts of methane gas and the inside are effectively isolated, thus stop the possibility of gas explosion.5, battery pack explosion-proof tank of the present invention, is placed on lithium ion battery in explosion-proof tank, meets the security protection requirement of colliery for well dynamic lithium ion battery, and can realize vehicle-mounted charge.6, the present invention is except the indicator lamp of driver's instrument and necessity, also develop LCDs, can show in real time each parameter state of vehicle, as motor torque, battery electric quantity, battery temperature etc., and there is alarm display function, if there is emergency situation, can show immediately it is which kind of alerting signal, make staff's fault of positioned vehicle rapidly, keep in repair in time.7, because high and low voltage electric distribution system of the present invention arranges GB charging socket, 3 grades of controls of key, smog alarm, self-extinguishing, insulation detection, external control binary pair, precharge loop, slug relay and general supply disconnector, therefore can realize Car Battery fast charge, low pressure, high pressure, startup, battery management system can be forced blocking-up high pressure under emergency, free setting delay time, can the whole electrical source of power of hand off vehicle etc. function.
In sum, this explosion-proof pure electric vehicle has innovation at system integration method and battery anti-explosion technical elements, the pure electric vehicle technology of ground run and coal mine operation requirement of explosion proof have been carried out to combination, not only can accomplish zero-emission, and can also guarantee easily carry out routine use the same as diesel-powered vehicle, meeting coal mine operation requirement, is a high-tech safe and reliable vehicle again.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is carried out to detailed describing.But only the providing in order to understand better the present invention of accompanying drawing is provided, they not should be understood to limitation of the present invention.
Fig. 1 is general arrangement schematic of the present invention;
Fig. 2 is the front view of battery anti-explosion case of the present invention;
Fig. 3 is the birds-eye view of battery anti-explosion case of the present invention;
Fig. 4 is the structural representation of entire automobile electric system of the present invention;
Fig. 5 is the circuit connection diagram of entire automobile electric system of the present invention;
Fig. 6 is the structural representation of braking in a turn of the present invention and cooling system motorized assembly;
Fig. 7 is the structural representation of electrical explosion proof case of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, the present invention includes a H type vehicle frame 1, the bottom, rear of vehicle frame 1 is fastenedly connected a drive axle 2, and the semiaxis two ends of drive axle 2 connect respectively a wheel 3.Between two transverse beams in vehicle frame 1 front, be provided with a traction electric machine 4, the output shaft of traction electric machine 4 be linked in sequence one speed reducer 5, a front propeller shaft 6, a Parking Brake 7 and a rear propeller shaft 8, the mouth power of rear propeller shaft 8 connects the input end of drive axle 2.Respectively be provided with an explosion-proof power battery group 9 being positioned at drive axle 2 forward-and-rearward vehicle frame 1 both sides, be respectively provided with a high and low voltage electric distribution explosion-proof tank 10 and a braking in a turn and cooling system motorized assembly 11 in vehicle frame 1 both sides between operator's compartment and compartment.
As shown in Figure 2, explosion-proof power battery group 9 comprises a battery anti-explosion case 9-1 and some lithium ion battery (not shown)s being arranged in this battery anti-explosion case 9-1.Battery anti-explosion case 9-1 adopts " upper and lower " double-decker layout, and wherein lower box 9-2 is independent explosion-proof battery cavities, and the associated components such as lithium ion battery and temperature sensor is only arranged in inside.As shown in Figure 3, upper box 9-3 is placed separately is adapter cavity 9-4, equipment cavity 9-5 and tri-cavitys of wire connection cavity 9-6, wherein adapter cavity 9-4 and lower box 9-2 UNICOM, in lower box 9-2, the positive and negative busbar of lithium ion battery, voltage acquisition line and temperature acquisition line are received equipment cavity 9-5 by explosion-proof connecting terminals through walls between adapter cavity 9-4 and equipment cavity 9-5.In equipment cavity 9-5, be furnished with the electric component (not shown)s such as battery management subsystem, battery branch mailbox electromagnetic valve and battery branch mailbox equalized maintenance socket, and battery management subsystem connects both positive and negative polarity and the temperature sensor of each lithium ion battery, to realize the function such as collection, casing heavy-current control, battery system heat management and the safety precaution of battery system electricity of cell pressure and temperature information.And in equipment cavity 9-5, the power cable of the positive and negative busbar of lithium ion battery, battery management subsystem and CAN communication cable are received wire connection cavity 9-6 by the connecting terminals explosion-proof through walls between equipment cavity 9-5 and wire connection cavity 9-6, and be connected to outside battery anti-explosion case 9-1 by the anti-explosion loudspeaker mouth 9-7 on wire connection cavity 9-6.
As shown in Figure 4, Figure 5, high and low voltage electric distribution explosion-proof tank 10 comprises an electrical explosion proof case 10-1 and is integrated in the entire automobile electric system in this electrical explosion proof case 10-1, and entire automobile electric system comprises entire car controller 10-2, traction motor controller 10-3, battery management system 10-4, helper motor controller 10-5, DC/DC high-low pressure converting unit 10-6, insulation detecting sensor 10-7, Smoke Detection sensor 10-8 and charging socket 10-9.Entire car controller 10-2 is electrically connected with traction motor controller 10-3 and battery management system 10-4 respectively by CAN communication network.Battery management system 10-4 is also by the battery management subsystem contact in CAN communication network and explosion-proof power battery group 9; be responsible for the information such as voltage and temperature of monitoring explosion-proof power battery group 9 interior lithium ion batteries; be responsible for estimation charge states of lithium ion battery SOC and state of health SOH simultaneously; explosion-proof power battery group 9 is carried out to alarm and protection, and with entire car controller 10-2 communication.DC/DC high-low pressure converting unit 10-6 is connected with the 24V A-battery of explosion-proof power battery group 9 and vehicle, it is responsible for the power supply of the each low-voltage electrical parts of car load, the high-tension current of explosion-proof power battery group 9 is converted into low tension required on vehicle, supplies with respectively each low-voltage electrical parts.
In order to prevent that CAN communication network from affecting traffic safety while breaking down, the signal of the key gear of vehicle, insulation detecting sensor 10-7, Smoke Detection sensor 10-8 and gas detecting sensor 13 is linked into entire car controller 10-2 by the present invention, and the signal of gear selecting switch, accelerator pedal sensor and the brake pedal sensor of vehicle is linked into traction motor controller 10-3, by CAN communication network, above-mentioned signal is sent to entire car controller 10-2 by traction motor controller 10-3, thereby makes the present invention there are following two kinds of master modes:
1), in the time that CAN communication network can normally be worked, traction motor controller 10-3 receives gear signal, acceleration pedal signal and the brake pedal signal of vehicle, does not then carry out any processing, is transmitted to entire car controller 10-2 by CAN communication network.Simultaneously, entire car controller 10-2 is according to traction motor controller 10-3, battery management system 10-4, insulation detecting sensor 10-7, the data that Smoke Detection sensor 10-8 and gas detecting sensor 13 send, the running state of moment monitoring vehicle: in the time judging that vehicle operating is normal, according to the gear signal of vehicle, acceleration pedal signal and brake pedal signal carry out car load power demand and calculate traction electric machine torque-demand, and by CAN communication network by traction electric machine torque-demand command routing to traction motor controller 10-3, and then control traction electric machine 4 and work, such as making traction electric machine 4 outputting powers or carrying out braking energy recovery when the car retardation, for explosion-proof power battery group 9 is charged, in the time judging that vehicle operating is abnormal (as overheated in gas alarming, battery, motor overheating, electric weight too low etc.), entire car controller 10-2 takes corresponding control method according to different alarm content, operations such as parking immediately, time limit parking or reduction horsepower output.
2) in the time that CAN communication network occurs disturbing or be wrong, traction motor controller 10-3 receives after gear signal, acceleration pedal signal and the brake pedal signal of vehicle, no longer sends to entire car controller 10-2.Now, traction motor controller 10-3 sends torque-demand order according to the gear signal of vehicle, acceleration pedal signal and brake pedal signal to traction electric machine 4 voluntarily, control traction electric machine 4 and work, assurance vehicle safe driving, to trouble-shooting place, avoids stopping up tunnel.
In a preferred embodiment, as shown in Figure 5, entire automobile electric system is divided into 24V low-voltage control circuit and 360V high voltage power circuit: when the key of vehicle is during in 1 file location, relay J 1 adhesive, the control units such as entire car controller 10-2, traction motor controller 10-3 and battery management system 10-4 power on, and the low-voltage electrical parts such as insulation detecting sensor 10-7, smoke monitoring sensor 10-8, gas monitor sensor 13, loudspeaker and rain brush 14 power on; When the key of vehicle is during in 2 file location, relay J 2 adhesives, the high-voltage electrical apparatus parts such as traction electric machine 4, helper motor 11-2, hydraulic pressure four-in pump 11-3, DC/DC high-low pressure converting unit 10-6 power on, and now vehicle can normally be worked.
As shown in Figure 6, braking in a turn and cooling system motorized assembly 11 comprise helper motor 11-1, hydraulic pressure four-in pump 11-2, cooling fan 11-3 and cooling water radiator 11-4.Wherein, helper motor controller 10-5 in helper motor 11-1 electrical connection entire automobile electric system, helper motor controller 10-5 directly controls helper motor 11-1 by relay J 2 and works, when the key of vehicle is started working after relay J 2 adhesives during in 2 file location.An outputting axial power of helper motor 11-1 connects hydraulic pressure four-in pump 11-2, another outputting axial power connects cooling fan 11-3, cooling fan 11-3 arranged outside cooling water radiator 11-4, in the time that cooling fan 11-3 rotates, can help cooling water radiator 11-4 to carry out heat conduction to environment quickly like this.The first Hydraulic Pump in hydraulic pressure four-in pump 11-2 is connected and installed in respectively wheel 3 by brake boost hydraulic tubing and takes turns the running brake (not shown) on limit and be installed on the Parking Brake 7 between forward and backward transmission shaft 6,8, to form brake fluid pressure loop, meet the electric booster braking user demand of vehicle; The second Hydraulic Pump in hydraulic pressure four-in pump 11-2 is connected and installed in the electric direction varying device (not shown) of operator's compartment bearing circle below by power steering hydraulic tubing, to form steering hydraulic loop, meet the electric power steering user demand of vehicle; The third and fourth Hydraulic Pump in hydraulic pressure four-in pump 11-2 is connected respectively traction electric machine refrigerant fluid I/O port and traction motor controller refrigerant fluid I/O port by the cooling hydraulic tubing of traction electric machine and the cooling hydraulic tubing of traction motor controller, form respectively cooling water circulation loop, to guarantee traction electric machine 4 and the normal operating temperature of traction motor controller 10-3.
In the above-described embodiments, running brake adopts the wet multi-disk brake of binary channel hydraulic assisting brake; Parking Brake 7 adopts the Wet-type multi-disc centre brake of hydraulic booster spring energy-storage, and handles by hand control valve (HCV); Electric direction varying device adopts circulating ball servo-hydraulic power steering.
As shown in Figure 7, electrical explosion proof case 10-1 is a rectangular box structure, and its side door 10-11 adopts quick opening mechanism to coordinate explosion-proof faying face, and has the pressure power-off interlock design of opening the door.The top cover 10-12 of electrical explosion proof case 10-1 can open, and is convenient to arrange each electrical equipment.The opposite side relative with side door 10-11 is provided with a flame proof wiring cabin 10-13 in electrical explosion proof case 10-1, and the side cover 10-14 corresponding with flame proof wiring cabin 10-13 also can open, and is convenient to wiring and debugging.Electrical explosion proof case 10-1 is also provided with a water-cooling base plate 10-15, for each electrical equipment in electrical explosion proof case 10-1 is carried out to radiating and cooling.Electrical explosion proof case 10-1 inside is provided with some reinforced ribs, under the prerequisite of proof strength, alleviates steel plate thickness.
In a preferred embodiment, on the side door 10-11 of electrical explosion proof case 10-1, be also provided with LCDs 12(not shown), LCDs 12 is connected (as shown in Figure 4) by serial ports with entire car controller 10-2, entire car controller 10-2 sends operating data to LCDs 12 by serial ports, to show in real time each parameter state of vehicle, as traction electric machine torque, battery electric quantity and battery temperature etc., facilitate the judgement of staff's fault and maintenance.
The various embodiments described above are only for illustrating the present invention; wherein the structure of each parts, connection mode and manufacture craft etc. all can change to some extent; every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (9)
1. for an explosion-proof pure electric vehicle for coal mine operation, it is characterized in that, this explosion-proof pure electric vehicle comprises:
One H type vehicle frame,
One is fastenedly connected in the drive axle of bottom, described vehicle frame rear,
Two are connected to the wheel at the semiaxis two ends of described drive axle,
Some explosion-proof power battery groups that are arranged at vehicle frame both sides described in described drive axle forward-and-rearward,
One is arranged at the high and low voltage electric distribution explosion-proof tank of described vehicle frame one side between operator's compartment and compartment,
One is arranged at braking in a turn and the cooling system motorized assembly of the described vehicle frame opposite side between described operator's compartment and compartment, and
One is arranged at the traction electric machine between two transverse beams in described vehicle frame front, the output shaft of described traction electric machine be linked in sequence one speed reducer, a front propeller shaft, a Parking Brake and a rear propeller shaft, the mouth power of described rear propeller shaft connects the input end of described drive axle;
Described explosion-proof power battery group comprises a battery anti-explosion case and some lithium ion battery, battery management subsystem, temperature sensor, battery branch mailbox electromagnetic valve and battery branch mailbox equalized maintenance sockets being arranged in described battery anti-explosion case, and described battery management subsystem connects both positive and negative polarity and the temperature sensor of lithium ion battery described in each;
Described high and low voltage electric distribution explosion-proof tank comprises an electrical explosion proof case and is integrated in the entire automobile electric system in described electrical explosion proof case, and described entire automobile electric system comprises entire car controller, traction motor controller, battery management system, helper motor controller, DC/DC high-low pressure converting unit, insulation detecting sensor, Smoke Detection sensor and charging socket; Described entire car controller is electrically connected with described traction motor controller and battery management system respectively by CAN communication network, described battery management system is by the battery management subsystem contact in CAN communication network and described explosion-proof power battery group, be responsible for voltage and the temperature information of lithium ion battery in the described explosion-proof power battery group of monitoring, be responsible for the described charge states of lithium ion battery of estimation and state of health simultaneously, described explosion-proof power battery group is carried out to alarm and protection, and with described entire car controller communication; Described entire car controller also accesses the key gear of vehicle, the signal of insulation detecting sensor, Smoke Detection sensor and gas detecting sensor, described traction motor controller accesses the signal of gear selecting switch, accelerator pedal sensor and the brake pedal sensor of vehicle, by CAN communication network, gear signal, acceleration pedal signal and brake pedal signal is sent to described entire car controller by described traction motor controller; Described DC/DC high-low pressure converting unit is connected with the 24V A-battery of described explosion-proof power battery group and vehicle;
Described braking in a turn and cooling system motorized assembly comprise helper motor, hydraulic pressure four-in pump, cooling fan and cooling water radiator; Described helper motor 1 is electrically connected the helper motor controller in described entire automobile electric system, and described helper motor controller is directly controlled described helper motor by relay and worked; One outputting axial power of described helper motor connects hydraulic pressure four-in pump, and another outputting axial power connects described cooling fan, cooling water radiator described in described cooling fan arranged outside; The first Hydraulic Pump in described hydraulic pressure four-in pump is connected and installed in respectively the running brake on described vehicle wheel limit and is installed on the described Parking Brake between forward and backward transmission shaft by brake boost hydraulic tubing, to form brake fluid pressure loop; The second Hydraulic Pump in described hydraulic pressure four-in pump is connected and installed in the electric direction varying device of operator's compartment bearing circle below by power steering hydraulic tubing, to form steering hydraulic loop; The third and fourth Hydraulic Pump in described hydraulic pressure four-in pump is connected respectively traction electric machine refrigerant fluid I/O port and traction motor controller refrigerant fluid I/O port by the cooling hydraulic tubing of traction electric machine and the cooling hydraulic tubing of traction motor controller, forms respectively cooling water circulation loop.
2. a kind of explosion-proof pure electric vehicle for coal mine operation as claimed in claim 1, is characterized in that, this explosion-proof pure electric vehicle has following two kinds of master modes:
1), in the time that CAN communication network can normally be worked, described traction motor controller receives gear signal, acceleration pedal signal and the brake pedal signal of vehicle, does not then carry out any processing, is transmitted to described entire car controller by CAN communication network; Simultaneously, the data that described entire car controller sends according to described traction motor controller, battery management system, insulation detecting sensor, Smoke Detection sensor and gas detecting sensor, the running state of moment monitoring vehicle: in the time judging that vehicle operating is normal, carry out car load power demand according to the gear signal of vehicle, acceleration pedal signal and brake pedal signal and calculate traction electric machine torque-demand, and give described traction motor controller by CAN communication network by traction electric machine torque-demand command routing, and then control described traction electric machine work; In the time judging that vehicle operating is abnormal, described entire car controller is taked corresponding control method according to different alarm content;
2) in the time that CAN communication network occurs disturbing or be wrong, described traction motor controller receives after gear signal, acceleration pedal signal and the brake pedal signal of vehicle, no longer sends to described entire car controller; Now, described traction motor controller sends torque-demand order according to the gear signal of vehicle, acceleration pedal signal and brake pedal signal to described traction electric machine voluntarily, controls traction electric machine work.
3. a kind of explosion-proof pure electric vehicle for coal mine operation as claimed in claim 1, it is characterized in that, described battery anti-explosion case adopts " upper and lower " double-decker layout, and wherein lower box is independent explosion-proof battery cavities, and described lithium ion battery and temperature sensor are only arranged in inside; Upper box is placed separately is adapter cavity, equipment cavity and three cavitys of wire connection cavity, and described adapter cavity and described lower box UNICOM, in described lower box, the positive and negative busbar of lithium ion battery, voltage acquisition line and temperature acquisition line are received described equipment cavity by explosion-proof connecting terminals through walls between described adapter cavity and equipment cavity; In described equipment cavity, arrange described battery management subsystem, battery branch mailbox electromagnetic valve and battery branch mailbox equalized maintenance socket; In described equipment cavity, the power cable of the positive and negative busbar of lithium ion battery, battery management subsystem and CAN communication cable are received described wire connection cavity by the connecting terminals explosion-proof through walls between described equipment cavity and wire connection cavity, and are connected to outside described battery anti-explosion case by the anti-explosion loudspeaker mouth on described wire connection cavity.
4. a kind of explosion-proof pure electric vehicle for coal mine operation as claimed in claim 2, it is characterized in that, described battery anti-explosion case adopts " upper and lower " double-decker layout, and wherein lower box is independent explosion-proof battery cavities, and described lithium ion battery and temperature sensor are only arranged in inside; Upper box is placed separately is adapter cavity, equipment cavity and three cavitys of wire connection cavity, and described adapter cavity and described lower box UNICOM, in described lower box, the positive and negative busbar of lithium ion battery, voltage acquisition line and temperature acquisition line are received described equipment cavity by explosion-proof connecting terminals through walls between described adapter cavity and equipment cavity; In described equipment cavity, arrange described battery management subsystem, battery branch mailbox electromagnetic valve and battery branch mailbox equalized maintenance socket; In described equipment cavity, the power cable of the positive and negative busbar of lithium ion battery, battery management subsystem and CAN communication cable are received described wire connection cavity by the connecting terminals explosion-proof through walls between described equipment cavity and wire connection cavity, and are connected to outside described battery anti-explosion case by the anti-explosion loudspeaker mouth on described wire connection cavity.
5. a kind of explosion-proof pure electric vehicle for coal mine operation as claimed in claim 1 or 2 or 3 or 4, it is characterized in that, described entire automobile electric system is divided into 24V low-voltage control circuit and 360V high voltage power circuit: when the key of vehicle is during in 1 file location, relay J 1 adhesive, described entire car controller, traction motor controller and battery management system power on, and described insulation detecting sensor, smoke monitoring sensor, gas monitor sensor and loudspeaker and rain brush power on; When the key of vehicle is during in 2 file location, relay J 2 adhesives, described traction electric machine, helper motor, hydraulic pressure four-in pump and DC/DC high-low pressure converting unit power on.
6. a kind of explosion-proof pure electric vehicle for coal mine operation as claimed in claim 1 or 2 or 3 or 4, is characterized in that, described running brake adopts the wet multi-disk brake of binary channel hydraulic assisting brake; Described Parking Brake adopts the Wet-type multi-disc centre brake of hydraulic booster spring energy-storage, and handles by hand control valve (HCV); Described electric direction varying device adopts circulating ball servo-hydraulic power steering.
7. a kind of explosion-proof pure electric vehicle for coal mine operation as claimed in claim 5, is characterized in that, described running brake adopts the wet multi-disk brake of binary channel hydraulic assisting brake; Described Parking Brake adopts the Wet-type multi-disc centre brake of hydraulic booster spring energy-storage, and handles by hand control valve (HCV); Described electric direction varying device adopts circulating ball servo-hydraulic power steering.
8. a kind of explosion-proof pure electric vehicle for coal mine operation as described in claim 1 or 2 or 3 or 4 or 7, it is characterized in that, described electrical explosion proof case is a rectangular box structure, and its side door adopts quick opening mechanism to coordinate explosion-proof faying face, and has the pressure power-off interlock design of opening the door; The top cover of described electrical explosion proof case can be opened, and is convenient to arrange each electrical equipment; The opposite side relative with described side door is provided with a flame proof wiring cabin in described electrical explosion proof case, and the side cover corresponding with described flame proof wiring cabin also can open, and is convenient to wiring and debugging; Described electrical explosion proof case is also provided with a water-cooling base plate, so that each electrical equipment in described electrical explosion proof case is carried out to radiating and cooling; Described electrical explosion proof case inside is provided with some reinforced ribs.
9. a kind of explosion-proof pure electric vehicle for coal mine operation as claimed in claim 8, it is characterized in that, on the side door of described electrical explosion proof case, be also provided with LCDs, described LCDs is connected with described entire car controller by serial ports, described entire car controller sends operating data to described LCDs by serial ports, to show in real time each parameter state of vehicle.
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| CN110370952A (en) * | 2019-06-18 | 2019-10-25 | 中国煤炭科工集团太原研究院有限公司 | A kind of mining supercapacitor mixing lithium battery source device |
| CN111532142B (en) * | 2020-02-29 | 2021-11-23 | 中国煤炭科工集团太原研究院有限公司 | Electro-hydraulic control automatic clutch device for coal mine electric engineering vehicle |
| CN111532142A (en) * | 2020-02-29 | 2020-08-14 | 中国煤炭科工集团太原研究院有限公司 | Electro-hydraulic control automatic clutch device for coal mine electric engineering vehicle |
| CN111361419B (en) * | 2020-03-10 | 2021-12-28 | 深圳市神拓机电股份有限公司 | Power-on and power-off control method and system for explosion-proof automobile |
| CN111361419A (en) * | 2020-03-10 | 2020-07-03 | 深圳市德塔防爆电动汽车有限公司 | Power-on and power-off control method and system for explosion-proof automobile |
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| CN113147502A (en) * | 2021-03-25 | 2021-07-23 | 常州科研试制中心有限公司 | Method for calculating underground charging electric quantity of coal mine explosion-proof electric vehicle |
| CN113147502B (en) * | 2021-03-25 | 2022-03-29 | 常州科研试制中心有限公司 | Method for calculating underground charging electric quantity of coal mine explosion-proof electric vehicle |
| CN113541234A (en) * | 2021-06-10 | 2021-10-22 | 南京音飞储存设备（集团）股份有限公司 | Charging control unit and explosion-proof scene application method |
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| CN114296439A (en) * | 2021-06-23 | 2022-04-08 | 中煤科工开采研究院有限公司 | Automatic driver vehicle for underground coal mine |
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