CN211390931U - Integrated power system of electric industrial vehicle - Google Patents
Integrated power system of electric industrial vehicle Download PDFInfo
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- CN211390931U CN211390931U CN201922267556.8U CN201922267556U CN211390931U CN 211390931 U CN211390931 U CN 211390931U CN 201922267556 U CN201922267556 U CN 201922267556U CN 211390931 U CN211390931 U CN 211390931U
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Abstract
The invention discloses an integrated power system of an electric industrial vehicle, which is used for solving the problems that the prior electric forklift driving and hydraulic power system has a single technical route, the length of a connecting cable in the system is too long, the whole vehicle assembly is not facilitated, the cost is increased due to the too long cable, the electric energy use efficiency is influenced, the heat dissipation efficiency and the function are not easy to realize, each unit needs to be independently cooled or dissipated, the structure is very complex, and the cost is greatly increased; the system comprises a driving power subsystem, a hydraulic power subsystem and an upper power control subsystem; the invention has high integration and compact arrangement, is completely integrated into a unified whole in structure, has simple structure and is convenient for the whole vehicle installation; the high-voltage wire harness is directly connected with the low-voltage wire harness in a short distance, so that the connection length of external cables among all parts of the integrated power system is greatly reduced, and the length of the cables is reduced; by providing a form of heat dissipation fan.
Description
Technical Field
The invention belongs to the field of electric industrial vehicles, relates to an integrated power system technology of an electric industrial vehicle, and particularly relates to an integrated power system of an electric industrial vehicle.
Background
The market of industrial vehicles in China has wide development space, and particularly the market potential of electric industrial vehicles is huge. With the continuous development of economy, higher requirements are put on the driving of electric industrial vehicles and hydraulic power systems.
The existing electric industrial vehicle driving and hydraulic power system has a single technical route, a driving motor and a front axle reducer are basically adopted to form a walking power unit, an oil pump motor and an oil pump form a hydraulic power unit, and a driving motor controller and an oil pump motor controller are separately arranged to form a motor control unit; the whole power system adopts a large-range decentralized arrangement mode, the walking power unit is arranged at the front axle of the vehicle body, the hydraulic power unit is arranged in the middle or at the rear part of the vehicle body, and the motor control unit is arranged in the middle or at the rear part of the vehicle body; in the system, the walking power unit and the hydraulic power unit are far away from the motor control unit, the length of a connecting cable is too long, the whole vehicle assembly is not facilitated, the cost is increased due to the too long cable, the electric energy use efficiency is influenced, and finally the energy consumption of the whole vehicle is greatly increased; for the state that the driving and hydraulic power system is distributed in a large-scale mode, the heat dissipation efficiency and the function are not easy to achieve, and each unit needs to be cooled or dissipated independently, so that the structure is very complex, and the cost is greatly increased.
Disclosure of Invention
The invention aims to provide an integrated power system of an electric industrial vehicle, which is used for solving the problems that the existing electric forklift driving and hydraulic power system has a single technical route, the length of a connecting cable in the system is too long, the whole vehicle assembly is not facilitated, the cost is increased due to the too long cable, the electric energy use efficiency is influenced, the heat dissipation efficiency and the function are not easy to realize, and each unit needs to be cooled or dissipated independently, so that the structure is very complex, and the cost is greatly increased; the invention has high integration and compact arrangement, is completely integrated into a unified whole in structure, does not need distributed arrangement, has simple structure, is convenient for the installation of the whole vehicle, and greatly improves the integration level and the reliability of a power system; the high-voltage wire harness is directly connected with the low-voltage wire harness in a short distance, so that the connection length of external cables among all parts of the integrated power system is greatly reduced, the assembly and installation procedures are reduced, meanwhile, the resistance caused by overlong cables is reduced by reducing the length of the cables, the operation efficiency of the power system is improved, and the operation time of the electric industrial vehicle is prolonged; through the form that sets up radiator fan, carry out forced air-cooled heat dissipation to driving motor, oil pump motor, driving motor controller and oil pump motor controller, reduce the temperature rise of electric industrial vehicle drive and hydraulic power subsystem by a wide margin, improve integrated power system's reliability, increase of service life.
The purpose of the invention can be realized by the following technical scheme: an integrated power system of an electric industrial vehicle comprises a driving power subsystem, a hydraulic power subsystem and an upper power control subsystem;
the driving power subsystem comprises a driving motor, a driving motor controller and a driving motor transmission mechanism; an output shaft I of the driving motor is connected with an input shaft of the driving motor transmission mechanism through a spline I and is fixedly arranged on a shell of the integrated power system transmission mechanism; the driving motor transmission mechanism is arranged in the integrated power system transmission mechanism; the driving motor controller is arranged on the upper parts of the integrated power system transmission mechanism and the driving motor through a controller supporting piece;
the hydraulic power subsystem comprises an oil pump motor, an oil pump motor controller, an oil pump motor transmission mechanism and an oil pump; an output shaft II of the oil pump motor is coaxially connected with an input shaft II of the oil pump motor transmission mechanism through a spline II and is fixedly arranged on a shell of the integrated power system transmission mechanism; the oil pump motor transmission mechanism comprises an input shaft II and an output shaft III which are arranged in parallel; an input shaft II and an output shaft III of the oil pump motor transmission mechanism are both fixedly arranged on a shell of the integrated power system transmission mechanism through bearings; a first input shaft gear is fixedly connected to a second input shaft of the oil pump motor transmission mechanism; an output shaft gear is fixedly connected to the third output shaft of the oil pump motor transmission mechanism; a first input shaft gear of the oil pump motor transmission mechanism is in transmission engagement with an output shaft gear; a third spline is arranged on a third output shaft of the oil pump motor transmission mechanism;
an input shaft tee joint of the oil pump is coaxially connected with an output shaft III of the oil pump motor transmission mechanism through a spline III, and the oil pump is fixedly arranged on the integrated power system transmission mechanism shell; the oil pump motor transmission mechanism is arranged in the integrated power system transmission mechanism; the oil pump motor controller is arranged on the upper parts of the integrated power system transmission mechanism and the oil pump motor through a controller support piece;
the upper power control subsystem comprises an upper power system controller and an upper power system controller, and the upper power system controller is simultaneously electrically connected with the driving motor controller, the oil pump motor controller and the DCDC direct-current power supply conversion unit; the DCDC direct-current power supply conversion unit is arranged on the controller support piece;
the driving motor transmission mechanism and the oil pump motor transmission mechanism are integrated into an integrated power system transmission mechanism, and the integrated power system transmission mechanism, the driving motor, the oil pump motor, the driving motor controller, the oil pump and the controller support piece are integrated into a whole power system of the electric industrial vehicle through a fixed connection mode.
Further, the driving motor transmission mechanism comprises a first input shaft, a second shaft, a third shaft and a third output shaft which are arranged in parallel; the first input shaft, the second shaft, the third shaft and the third output shaft of the driving motor transmission mechanism are fixedly arranged on a shell of the integrated power system transmission mechanism through bearings; an input shaft gear is fixedly connected to a first input shaft of the driving motor transmission mechanism, a first-stage reduction driven gear and a second-stage reduction driving gear are fixedly connected to a second shaft, a second-stage reduction driven gear and a third-stage reduction driving gear are fixedly connected to a third shaft, and a third-stage reduction driven gear is fixedly connected to a third output shaft; the input shaft gear is in transmission engagement with the first-stage reduction driven gear, the second-stage reduction driving gear is in transmission engagement with the second-stage reduction driven gear, and the third-stage reduction driving gear is in transmission engagement with the third-stage reduction driven gear; a differential is arranged on an output shaft of the driving motor transmission mechanism, and a left half shaft and a right half shaft are arranged at the output end of the differential;
the drive motor transmission mechanism and the oil pump motor transmission mechanism are arranged in the integrated power system transmission mechanism, share the integrated power system transmission mechanism shell and form an integral transmission mechanism.
Furthermore, a plurality of heat dissipation fans for heat dissipation and grid windows for preventing foreign matters from entering the fans are arranged on the controller supporting piece; the plurality of cooling fans are arranged above the driving motor and the oil pump motor through controller supporting pieces; the plurality of heat dissipation fans are arranged below the driving motor controller and the oil pump motor controller through the controller supporting piece, and meanwhile, the driving motor, the oil pump motor, the driving motor controller and the oil pump motor controller are subjected to forced air cooling heat dissipation.
Furthermore, three-phase power lines of the driving motor and the driving motor controller are directly connected in short distance between a first three-phase outgoing line connector of a rear end cover of the driving motor and a second three-phase outgoing line connector of the driving motor controller through a first high-voltage wire harness, and low-voltage signal lines of the driving motor and the driving motor controller are directly connected in short distance between the first low-voltage outgoing line connector of the rear end cover of the driving motor and the second low-voltage outgoing line connector of the driving motor controller through the first low-voltage wire harness;
the three-phase power lines of the oil pump motor and the oil pump motor controller are directly connected in short distance through a high-voltage wire harness II between a three-phase outgoing line connector III of the rear end cover of the oil pump motor and a three-phase outgoing line connector IV of the oil pump motor controller, and the low-voltage signal lines of the oil pump motor and the oil pump motor controller are directly connected in short distance through a low-voltage wire harness II between a low-voltage outgoing line connector III of the rear end cover of the oil pump motor and a low-voltage outgoing line connector IV of the oil pump motor controller.
Further, high-voltage direct-current input wiring harnesses of the driving motor controller, the oil pump motor controller and the DCDC direct-current power supply conversion unit are uniformly connected to the vehicle power battery system from one side of the integrated power system through a fixing buckle on the controller supporting piece; and the low-voltage power supply and the control wiring harness of the driving motor controller, the oil pump motor controller and the DCDC direct-current power supply conversion unit are uniformly connected to the vehicle control system from the other side of the integrated power system through the fixed buckles on the controller supporting piece.
Furthermore, the integrated power system transmission mechanism further comprises an output flange plate on the shell, and the output flange plate is fixedly connected with a tooth packet and a flange plate of a front axle of the electric industrial vehicle into a whole through bolts after being positioned through the seam allowances.
Furthermore, the integrated power system transmission mechanism further comprises an auxiliary support fixing foot on the shell, and the auxiliary support fixing foot is fixedly connected with a support arm on the frame of the electric industrial vehicle through a bolt.
Compared with the prior art, the invention has the beneficial effects that:
1. the integrated power system of the electric industrial vehicle is highly integrated and compactly arranged, is completely integrated into a unified whole in structure, does not need distributed arrangement, has simple structure, is convenient for the installation of the whole vehicle, and greatly improves the integration level and the reliability of the power system;
2. the high-voltage wire harness is directly connected with the low-voltage wire harness in a short distance, so that the connection length of external cables among all parts of the integrated power system is greatly reduced, the assembly and installation procedures are reduced, meanwhile, the resistance caused by overlong cables is reduced by reducing the length of the cables, the operation efficiency of the power system is improved, and the operation time of the electric industrial vehicle is prolonged;
3. a plurality of radiator fan passes through controller support piece and sets up in the top of driving motor and oil pump motor and the below of driving motor controller and oil pump motor controller, through setting up radiator fan's form, carries out forced air cooling heat dissipation to driving motor, oil pump motor, driving motor controller and oil pump motor controller, reduces the temperature rise of electric industrial vehicle drive and hydraulic power subsystem by a wide margin, improves integrated power system's reliability, increase of service life, satisfy more rigorous electric industrial vehicle operation requirement.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is an overall schematic view of the electric industrial vehicle integrated power system of the present invention;
FIG. 2 is an overall schematic view of the electric industrial vehicle integrated power system of the present invention;
FIG. 3 is a schematic diagram of the control method of the integrated powertrain of the electric industrial vehicle of the present invention;
FIG. 4 is a left side view of the overall schematic of FIG. 1;
FIG. 5 is a right side view of the overall schematic of FIG. 1;
FIG. 6 is a rear view of the overall schematic of FIG. 1;
FIG. 7 is a top view of the overall schematic of FIG. 1;
FIG. 8 is a schematic structural diagram of the integrated powertrain transmission of the present invention;
fig. 9 is a schematic structural diagram of a controller support and a heat dissipation fan according to the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-9, an integrated power system for an electric industrial vehicle includes a driving power subsystem, a hydraulic power subsystem, and an upper power control subsystem;
the driving power subsystem comprises a driving motor 2, a driving motor controller 8 and a driving motor transmission mechanism 105; an output shaft I of the driving motor 2 is coaxially connected with an input shaft I17 of the driving motor transmission mechanism 105 through a spline I15 and is fixedly arranged on a shell of the integrated power system transmission mechanism 1; the driving motor transmission mechanism 105 is arranged inside the integrated power system transmission mechanism 1; the driving motor controller 8 is arranged on the upper parts of the integrated power system transmission mechanism 1 and the driving motor 2 through the controller supporting piece 6;
the hydraulic power subsystem comprises an oil pump motor 3, an oil pump motor controller 4, an oil pump motor transmission mechanism 106 and an oil pump 5; the second output shaft of the oil pump motor 3 is coaxially connected with the second input shaft 11 of the oil pump motor transmission mechanism 106 through the second spline 27 and is fixedly installed on the shell of the integrated power system transmission mechanism 1; the oil pump motor transmission mechanism 106 comprises a second input shaft 11 and a third output shaft 13 which are arranged in parallel; the second input shaft 11 and the third output shaft 13 of the oil pump motor transmission mechanism 106 are both fixedly arranged on the shell of the integrated power system transmission mechanism 1 through bearings; a first input shaft gear 10 is fixedly connected to the second input shaft 11 of the oil pump motor transmission mechanism 106; an output shaft gear 12 is fixedly connected to the output shaft III 13 of the oil pump motor transmission mechanism 106; the first input shaft gear 10 of the oil pump motor transmission mechanism 106 is in transmission engagement with the output shaft gear 12; a third spline 14 is arranged on a third output shaft 13 of the oil pump motor transmission mechanism 106;
an input shaft tee joint of the oil pump 5 is coaxially connected with an output shaft tee 13 of the oil pump motor transmission mechanism 106 through a spline tee 14, and the oil pump 5 is fixedly arranged on a shell of the integrated power system transmission mechanism 1; the oil pump motor transmission mechanism 106 is arranged inside the integrated power system transmission mechanism 1; the oil pump motor controller 4 is arranged on the upper parts of the integrated power system transmission mechanism 1 and the oil pump motor 3 through a controller support part 6;
the upper power control subsystem comprises an upper power system controller 9 and an upper power system controller 9, and the upper power system controller 9 is simultaneously electrically connected with a driving motor controller 8, an oil pump motor controller 4 and a DCDC direct-current power supply conversion unit 7; the DCDC direct-current power supply conversion unit 7 is arranged on the controller support part 6;
the driving motor transmission mechanism 105 and the oil pump motor transmission mechanism 106 are integrated into an integrated power system transmission mechanism 1, and the integrated power system transmission mechanism 1, the driving motor 2, the oil pump motor 3, the driving motor controller 8, the oil pump motor controller 4, the oil pump 5 and the controller support member 6 are all integrated into a whole power system of the electric industrial vehicle in a fixed connection mode.
The driving motor transmission mechanism 105 comprises a first input shaft 17, a second shaft 19, a third shaft 20 and a third output shaft which are arranged in parallel; the first input shaft 17, the second shaft 19, the third shaft 20 and the third output shaft of the driving motor transmission mechanism 105 are fixedly arranged on the shell of the integrated power system transmission mechanism 1 through bearings; an input shaft gear 16 is fixedly connected to a first input shaft 17 of the driving motor transmission mechanism 105, a first-stage reduction driven gear 18 and a second-stage reduction driving gear 26 are fixedly connected to a second shaft 19, a second-stage reduction driven gear 21 and a third-stage reduction driving gear 25 are fixedly connected to a third shaft 20, and a third-stage reduction driven gear 24 is fixedly connected to a third output shaft; the input shaft gear 16 is in transmission meshing connection with the primary speed reduction driven gear 18, the secondary speed reduction driving gear 26 is in transmission meshing connection with the secondary speed reduction driven gear 21, and the tertiary speed reduction driving gear 25 is in transmission meshing connection with the tertiary speed reduction driven gear 24; a differential 102 is arranged on an output shaft of the driving motor transmission mechanism 105, and a left half shaft 22 and a right half shaft 23 are arranged at the output end of the differential 102;
the driving motor transmission mechanism 105 and the oil pump motor transmission mechanism 106 are both arranged in the integrated power system transmission mechanism 1, share the shell of the integrated power system transmission mechanism 1 and form an integral transmission mechanism.
The controller support 6 is provided with a plurality of heat dissipation fans 602 for heat dissipation and a grid window 601 for preventing foreign matters from entering the fans; a plurality of cooling fans 602 are disposed above the driving motor 2 and the oil pump motor 3 through the controller support member 6; the plurality of heat dissipation fans 602 are disposed below the driving motor controller 8 and the oil pump motor controller 4 through the controller support member 6, and perform forced air cooling heat dissipation on the driving motor 2, the oil pump motor 3, the driving motor controller 8, and the oil pump motor controller 4.
Three-phase power lines of the driving motor 2 and the driving motor controller 8 are directly connected in short distance between a first three-phase outgoing line connector 201 of the rear end cover of the driving motor 2 and a second three-phase outgoing line connector 801 of the driving motor controller 8 through a first high-voltage wire harness 803, and low-voltage signal lines of the driving motor 2 and the driving motor controller 8 are directly connected in short distance between a first low-voltage outgoing line connector 202 of the rear end cover of the driving motor 2 and a second low-voltage outgoing line connector 802 of the driving motor controller 8 through a first low-voltage wire harness 804;
three-phase power lines of the oil pump motor 3 and the oil pump motor controller 4 are directly connected in short distance between a three-phase outgoing line connector three 301 of the rear end cover of the oil pump motor 3 and a three-phase outgoing line connector four 401 of the oil pump motor controller 4 through a high-voltage wire harness two 403, and low-voltage signal lines of the oil pump motor 3 and the oil pump motor controller 4 are directly connected in short distance between a low-voltage outgoing line connector three 302 of the rear end cover of the oil pump motor 3 and a low-voltage outgoing line connector four 402 of the oil pump motor controller 4 through a low-voltage wire harness two 404.
The high-voltage direct-current input wiring harness 901 of the driving motor controller 8, the oil pump motor controller 4 and the DCDC direct-current power supply conversion unit 7 are connected to the vehicle power battery system from one side of the integrated power system through a fixed buckle on the controller support piece 6; the low-voltage power supply and control wiring harness 902 of the driving motor controller 8, the oil pump motor controller 4 and the DCDC direct-current power supply conversion unit 7 are connected to the vehicle control system from the other side of the integrated power system through the fixed buckles on the controller support piece 6.
The integrated power system transmission mechanism 1 further comprises an output flange plate 101 on the shell, and the output flange plate 101 is fixedly connected with a tooth packet and a flange plate of a front axle of the electric industrial vehicle into a whole through bolts after being positioned through the seam allowances.
The integrated power system transmission mechanism 1 further comprises an auxiliary supporting fixing foot 103 on the shell, and the auxiliary supporting fixing foot 103 is fixedly connected with a supporting arm on the frame of the electric industrial vehicle through a bolt 104.
The working principle of the invention is as follows: the integrated power system of the electric industrial vehicle is highly integrated and compactly arranged, is completely integrated into a unified whole in structure, does not need distributed arrangement, has simple structure, is convenient for the installation of the whole vehicle, and greatly improves the integration level and the reliability of the power system; meanwhile, three-phase power lines of the driving motor 2 and the driving motor controller 8 are directly connected in short distance between a first three-phase outgoing line connector 201 of the rear end cover of the driving motor 2 and a second three-phase outgoing line connector 801 of the driving motor controller 8 through a first high-voltage wire harness 803, and low-voltage signal lines of the driving motor 2 and the driving motor controller 8 are directly connected in short distance between a first low-voltage outgoing line connector 202 of the rear end cover of the driving motor 2 and a second low-voltage outgoing line connector 802 of the driving motor controller 8 through a first low-voltage wire harness 804; three-phase power lines of the oil pump motor 3 and the oil pump motor controller 4 are directly connected in short distance between a three-phase outgoing line connector III 301 of the rear end cover of the oil pump motor 3 and a three-phase outgoing line connector IV 401 of the oil pump motor controller 4 through a high-voltage wire harness II 403, and low-voltage signal lines of the oil pump motor 3 and the oil pump motor controller 4 are directly connected in short distance between a low-voltage outgoing line connector III 302 of the rear end cover of the oil pump motor 3 and a low-voltage outgoing line connector IV 402 of the oil pump motor controller 4 through a low-voltage wire harness II 404; the integrated power system greatly reduces the external cable connection length among all parts through direct short-distance connection, reduces the resistance generated by overlong cables while reducing the assembly and installation procedures through reducing the cable length, improves the operation efficiency of the power system and prolongs the operation time of the electric industrial vehicle; a plurality of radiator fan 602 passes through controller support piece 6 and sets up in the top of driving motor 2 and oil pump motor 3 and the below of driving motor controller 8 and oil pump motor controller 4, through the form that sets up radiator fan 602, carry out forced air-cooled heat dissipation to driving motor 2, oil pump motor 3, driving motor controller 8 and oil pump motor controller 4, reduce the temperature rise of electric industrial vehicle drive and hydraulic power subsystem by a wide margin, improve integrated power system's reliability, increase of service life, satisfy more rigorous electric industrial vehicle operation requirement.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. An integrated power system of an electric industrial vehicle is characterized by comprising a driving power subsystem, a hydraulic power subsystem and an upper power control subsystem;
the driving power subsystem comprises a driving motor (2), a driving motor controller (8) and a driving motor transmission mechanism (105); the first output shaft of the driving motor (2) is coaxially connected with the first input shaft (17) of the driving motor transmission mechanism (105) through a first spline (15) and is fixedly installed on a shell of the integrated power system transmission mechanism (1); the driving motor transmission mechanism (105) is arranged inside the integrated power system transmission mechanism (1); the driving motor controller (8) is arranged on the upper parts of the integrated power system transmission mechanism (1) and the driving motor (2) through a controller supporting piece (6);
the hydraulic power subsystem comprises an oil pump motor (3), an oil pump motor controller (4), an oil pump motor transmission mechanism (106) and an oil pump (5); the second output shaft of the oil pump motor (3) is coaxially connected with the second input shaft (11) of the oil pump motor transmission mechanism (106) through a second spline (27) and is fixedly installed on the shell of the integrated power system transmission mechanism (1); the oil pump motor transmission mechanism (106) comprises a second input shaft (11) and a third output shaft (13) which are arranged in parallel; the input shaft II (11) and the output shaft III (13) of the oil pump motor transmission mechanism (106) are fixedly arranged on the shell of the integrated power system transmission mechanism (1) through bearings; a first input shaft gear (10) is fixedly connected to the second input shaft (11) of the oil pump motor transmission mechanism (106); an output shaft gear (12) is fixedly connected to the third output shaft (13) of the oil pump motor transmission mechanism (106); a first input shaft gear (10) of the oil pump motor transmission mechanism (106) is in transmission engagement with an output shaft gear (12); a third spline (14) is arranged on a third output shaft (13) of the oil pump motor transmission mechanism (106);
an input shaft tee joint of the oil pump (5) is coaxially connected with an output shaft III (13) of the oil pump motor transmission mechanism (106) through a spline III (14), and the oil pump (5) is fixedly arranged on a shell of the integrated power system transmission mechanism (1); the oil pump motor transmission mechanism (106) is arranged inside the integrated power system transmission mechanism (1); the oil pump motor controller (4) is arranged on the upper parts of the integrated power system transmission mechanism (1) and the oil pump motor (3) through a controller support piece (6);
the upper power control subsystem comprises an upper power system controller (9) and an upper power system controller (9), wherein the upper power system controller (9) is simultaneously and electrically connected with a driving motor controller (8), an oil pump motor controller (4) and a DCDC direct-current power supply conversion unit (7); the DCDC direct-current power supply conversion unit (7) is arranged on the controller support piece (6);
drive motor drive mechanism (105) and oil pump motor drive mechanism (106) are integrated into integrated driving system drive mechanism (1), just integrated driving system drive mechanism (1), driving motor (2), oil pump motor (3), driving motor controller (8), oil pump motor controller (4), oil pump (5) and controller support piece (6) all integrate into an holistic electronic industrial vehicle driving system each other through fixed connection's mode.
2. The electric industrial vehicle integrated power system according to claim 1, wherein the drive motor transmission (105) comprises a first input shaft (17), a second shaft (19), a third shaft (20) and a third output shaft arranged in parallel; the input shaft I (17), the second shaft (19), the third shaft (20) and the output shaft III of the driving motor transmission mechanism (105) are fixedly arranged on a shell of the integrated power system transmission mechanism (1) through bearings; an input shaft gear (16) is fixedly connected to a first input shaft (17) of the driving motor transmission mechanism (105), a first-stage reduction driven gear (18) and a second-stage reduction driving gear (26) are fixedly connected to a second shaft (19), a second-stage reduction driven gear (21) and a third-stage reduction driving gear (25) are fixedly connected to a third shaft (20), and a third-stage reduction driven gear (24) is fixedly connected to a third output shaft; the input shaft gear (16) is in transmission meshing connection with the first-stage reduction driven gear (18), the second-stage reduction driving gear (26) is in transmission meshing connection with the second-stage reduction driven gear (21), and the third-stage reduction driving gear (25) is in transmission meshing connection with the third-stage reduction driven gear (24); a differential (102) is arranged on an output shaft of the driving motor transmission mechanism (105), and a left half shaft (22) and a right half shaft (23) are arranged at the output end of the differential (102);
the driving motor transmission mechanism (105) and the oil pump motor transmission mechanism (106) are arranged in the integrated power system transmission mechanism (1), and share the shell of the integrated power system transmission mechanism (1) to form an integral transmission mechanism.
3. The electric industrial vehicle integrated power system according to claim 1, characterized in that a plurality of heat dissipation fans (602) for heat dissipation and a mesh window (601) for preventing foreign matters from entering the fans are arranged on the controller support member (6); the plurality of cooling fans (602) are arranged above the driving motor (2) and the oil pump motor (3) through controller supporting pieces (6); the heat dissipation fans (602) are arranged below the driving motor controller (8) and the oil pump motor controller (4) through the controller supporting piece (6), and meanwhile, the driving motor (2), the oil pump motor (3), the driving motor controller (8) and the oil pump motor controller (4) are subjected to forced air cooling heat dissipation.
4. The integrated power system of the electric industrial vehicle as claimed in claim 1, wherein the three-phase power lines of the driving motor (2) and the driving motor controller (8) are directly connected in short distance through a high-voltage wire harness I (803) between a three-phase outgoing line connector I (201) at the rear end cover of the driving motor (2) and a three-phase outgoing line connector II (801) at the driving motor controller (8), and the low-voltage signal lines of the driving motor (2) and the driving motor controller (8) are directly connected in short distance through a low-voltage wire harness I (804) between a low-voltage outgoing line connector I (202) at the rear end cover of the driving motor (2) and a low-voltage outgoing line connector II (802) at the driving motor controller (8);
the three-phase power lines of the oil pump motor (3) and the oil pump motor controller (4) are connected in a short distance mode through a high-voltage wire harness II (403) between a three-phase outgoing line connector III (301) of the rear end cover of the oil pump motor (3) and a three-phase outgoing line connector IV (401) of the oil pump motor controller (4), and the low-voltage signal lines of the oil pump motor (3) and the oil pump motor controller (4) are connected in a short distance mode through a low-voltage wire harness II (404) between a low-voltage outgoing line connector III (302) of the rear end cover of the oil pump motor (3) and a low-voltage outgoing line connector IV (402) of the oil pump motor controller (4.
5. The integrated power system of the electric industrial vehicle as claimed in claim 1, characterized in that the high voltage direct current input wiring harness (901) of the drive motor controller (8), the oil pump motor controller (4) and the DCDC direct current power conversion unit (7) is uniformly connected to the vehicle power battery system from one side of the integrated power system through a fixed buckle on the controller support (6); and the low-voltage power supply and control wiring harness (902) of the driving motor controller (8), the oil pump motor controller (4) and the DCDC direct-current power supply conversion unit (7) are connected to the vehicle control system from the other side of the integrated power system through a fixed buckle on the controller support piece (6).
6. The integrated power system of the electric industrial vehicle as claimed in claim 1, wherein the integrated power system transmission mechanism (1) further comprises an output flange (101) on the housing, and the output flange (101) is fixedly connected with a tooth packet and a flange of a front axle of the electric industrial vehicle into a whole by bolts after being positioned by the seam allowances.
7. The electric industrial vehicle integrated power system according to claim 1, characterized in that the integrated power system transmission mechanism (1) further comprises an auxiliary support fixing foot (103) on the housing, and the auxiliary support fixing foot (103) is fixedly connected with a support arm on the frame of the electric industrial vehicle through a bolt (104).
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| CN201922267556.8U CN211390931U (en) | 2019-12-17 | 2019-12-17 | Integrated power system of electric industrial vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110920369A (en) * | 2019-12-17 | 2020-03-27 | 安徽维德电源有限公司 | Integrated power system of electric industrial vehicle and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110920369A (en) * | 2019-12-17 | 2020-03-27 | 安徽维德电源有限公司 | Integrated power system of electric industrial vehicle and control method thereof |
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