Power system of port flowing machine and port flowing machine

Abstract

The embodiment of the utility model provides a power system of a port flowing machine and the port flowing machine. The system comprises a multifunctional controller, a high-voltage direct-current power supply module, an axle and a driving hydraulic pump, the multifunctional controller comprises a high-voltage direct-current input end and a plurality of high-voltage alternating-current output ends, the high-voltage direct-current input end is electrically connected with the high-voltage direct-current power supply module, and a walking driving motor of the axle and a main pump driving motor of the driving hydraulic pump are electrically connected with one high-voltage alternating-current output end respectively; high-voltage alternating current is provided for a walking driving motor of an axle and a main pump driving motor of a driving hydraulic pump through a plurality of high-voltage alternating current output ends so as to control the axle and the driving hydraulic pump to operate; the multifunctional controller is arranged to supply power to the controlled modules in a centralized mode and control the controlled modules separately, so that the spatial layout of the power system is simplified, and the problems that the transmission route is long, the energy loss in the transmission process is large, and fine control is not facilitated when one motor drives the multiple controlled modules are solved.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of port mobile machinery, and in particular to a power system of a port mobile machinery and the port mobile machinery. Background Art

[0002] Port mobile machinery, including empty container handlers, reach stackers, loaders and other products, usually uses fuel as a driving energy source. How to achieve clean energy substitution for port mobile machinery has become an urgent problem to be solved by ports.

[0003] Traditional port mobile machinery usually adopts a centralized drive mode, that is, one engine is used to drive multiple systems including walking, lifting, braking, air conditioning, generators, etc. In the process of electrification of port mobile machinery, many electrified port mobile machinery also adopt a centralized drive system technology route similar to engine drive. This technology route is simple to implement and low in cost. It can realize the electrification replacement or upgrade of port mobile machinery and reduce port carbon emissions. However, it still has the following shortcomings: (1) With a centralized drive mode, one motor drives multiple power systems, resulting in long transmission routes and large energy losses during the transmission process; (2) With a centralized drive mode, one motor cannot take into account the control requirements of multiple power systems, which is not conducive to achieving refined control. Utility Model Content

[0004] The embodiment of the utility model provides a power system of a port mobile machinery and the port mobile machinery, which utilizes a multifunctional controller to centrally power and separately control each controlled module, thereby simplifying the spatial layout of the power system and improving the control efficiency.

[0005] In a first aspect, an embodiment of the utility model provides a power system for a port mobile machinery, including a multifunctional controller, a high-voltage DC power supply module, an axle, and a driving hydraulic pump;

[0006] The multifunctional controller comprises a high-voltage direct current input terminal and a plurality of high-voltage alternating current output terminals, wherein the high-voltage direct current input terminal is electrically connected to the high-voltage direct current power supply module, and the travel drive motor of the axle and the main pump drive motor of the driving hydraulic pump are each electrically connected to one of the high-voltage alternating current output terminals;

[0007] The multifunctional controller receives the high-voltage direct current supplied by the high-voltage direct current power supply module through the high-voltage direct current input terminal, converts the high-voltage direct current into high-voltage alternating current, and adjusts the amplitude and / or frequency of the high-voltage alternating current, and provides the high-voltage alternating current to the travel drive motor of the axle and the main pump drive motor of the drive hydraulic pump through the multiple high-voltage alternating current output terminals to control the operation of the axle and the drive hydraulic pump.

[0008] Optionally, the power system further includes a potential energy recovery pump; the multifunctional controller further includes a first high-voltage alternating current input terminal and a first high-voltage direct current output terminal;

[0009] The first high-voltage direct current output terminal is electrically connected to the high-voltage direct current power supply module, and the potential energy recovery motor of the potential energy recovery pump is electrically connected to the first high-voltage alternating current input terminal;

[0010] The multifunctional controller also receives the alternating current generated by the potential energy recovery motor of the potential energy recovery pump through the first high-voltage alternating current input terminal, converts the alternating current into direct current, and transmits it to the high-voltage direct current power supply module through the first high-voltage direct current output terminal.

[0011] Optionally, the power system further includes an air conditioner; the multifunctional controller further includes a low-voltage alternating current output terminal;

[0012] The motor of the air conditioner is electrically connected to the low-voltage AC output terminal of the multi-function controller;

[0013] The multi-function controller also receives the high-voltage direct current supplied by the high-voltage direct current power supply module through the high-voltage direct current input terminal, converts the high-voltage direct current into low-voltage alternating current, and provides the low-voltage alternating current to the motor of the air conditioner through the low-voltage alternating current output terminal to control the operation of the air conditioner.

[0014] Optionally, the power system further includes a low-voltage electrical appliance; the multifunctional controller further includes a low-voltage direct current output terminal, and the low-voltage direct current output terminal is electrically connected to the low-voltage electrical appliance;

[0015] The multi-function controller also receives the high-voltage direct current supplied by the high-voltage direct current power supply module through the high-voltage direct current input terminal, converts the high-voltage direct current into low-voltage direct current, and provides the low-voltage direct current to the low-voltage battery of the low-voltage electrical appliance through the low-voltage direct current output terminal to control the operation of the low-voltage electrical appliance.

[0016] Optionally, the high-voltage AC power output terminal is multiplexed as a second high-voltage AC power input terminal, and the high-voltage DC power input terminal is multiplexed as a second high-voltage DC power output terminal;

[0017] The multifunctional controller also receives reverse-drag AC power generated by reverse-drag power generation of the travel drive motor in the vehicle axle through the second high-voltage AC power input terminal, converts the reverse-drag AC power into reverse-drag DC power, and provides the reverse-drag DC power to the high-voltage DC power supply module through the second high-voltage DC power output terminal.

[0018] Optionally, the power system further includes a control panel; the multifunctional controller further includes a control signal receiving end; the multifunctional controller receives the control signal from the control panel via the control signal receiving end.

[0019] Optionally, the power system further includes a remote monitoring module;

[0020] The multifunctional controller further comprises a remote monitoring control terminal, wherein the remote monitoring control terminal is electrically connected to the remote monitoring module;

[0021] The multifunctional controller provides voltage conversion information and motor control information to the remote monitoring module through the remote monitoring control terminal.

[0022] Optionally, the power system further comprises a positioning module;

[0023] The multifunctional controller further comprises a positioning information receiving terminal, and the positioning information receiving terminal is electrically connected to the positioning module;

[0024] The multi-function controller receives and stores the position information provided by the positioning module through the positioning information receiving end.

[0025] In a second aspect, an embodiment of the present invention further provides a port mobile machinery, comprising a power system of the port mobile machinery as described in any one of the first aspects of the present invention.

[0026] The embodiment of the utility model provides a power system of a port mobile machinery and the port mobile machinery, the power system of the port mobile machinery includes a multifunctional controller, a high-voltage direct current power supply module, an axle, and a driving hydraulic pump; the multifunctional controller includes a high-voltage direct current input terminal and a plurality of high-voltage alternating current output terminals, the high-voltage direct current input terminal is electrically connected to the high-voltage direct current power supply module, and the travel drive motor of the axle and the main pump drive motor of the driving hydraulic pump are each electrically connected to a high-voltage alternating current output terminal; the multifunctional controller receives the high-voltage direct current supplied by the high-voltage direct current power supply module through the high-voltage direct current input terminal, converts the high-voltage direct current into high-voltage alternating current, and adjusts the amplitude and / or frequency of the high-voltage alternating current, and provides high-voltage alternating current to the travel drive motor of the axle and the main pump drive motor of the driving hydraulic pump through the plurality of high-voltage alternating current output terminals, so as to control the operation of the axle and the driving hydraulic pump; the above technical scheme, by setting the multifunctional controller to centrally supply power to each controlled module and separately control it, thereby simplifying the spatial layout of the power system, and solving the problems in the prior art that one motor drives multiple controlled modules, the transmission route is long, the energy loss in the transmission process is large, and it is not conducive to realizing refined control. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a structural schematic diagram of a port mobile machinery power system provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0030] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. It should be noted that the directional words such as "upper", "lower", "left", "right" and the like described in the embodiments of the present invention are described at the angles shown in the accompanying drawings and should not be understood as limitations on the embodiments of the present invention. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is formed "on" or "under" another element, it can not only be directly formed "on" or "under" another element, but also indirectly formed "on" or "under" another element through an intermediate element. The terms "first", "second" and the like are only used for descriptive purposes and do not represent any order, quantity or importance, but are only used to distinguish different components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific circumstances.

[0031] The term "including" and its variations used in the present invention are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment".

[0032] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish the corresponding contents, and are not used to limit the order or interdependence.

[0033] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0034] Figure 1This is a schematic diagram of the structure of a power system of a port mobile machinery provided by an embodiment of the utility model, with reference to Figure 1 The power control system includes a multifunctional controller 10, a high-voltage DC power supply module 20, an axle 30, and a driving hydraulic pump 40; the multifunctional controller 10 includes a high-voltage DC input terminal 11 and a plurality of high-voltage AC output terminals 14, the high-voltage DC input terminal 11 is electrically connected to the high-voltage DC power supply module 20, and the travel drive motor 31 of the axle 30 and the main pump drive motor 41 of the driving hydraulic pump 40 are each electrically connected to a high-voltage AC output terminal 14; the multifunctional controller 10 receives the high-voltage DC power supplied by the high-voltage DC power supply module 20 through the high-voltage DC input terminal 11, converts the high-voltage DC power into high-voltage AC power, and adjusts the amplitude and / or frequency of the high-voltage AC power, and provides high-voltage AC power to the travel drive motor 31 of the axle 30 and the main pump drive motor 41 of the driving hydraulic pump 40 through the plurality of high-voltage AC output terminals 14, so as to control the operation of the axle 30 and the driving hydraulic pump 40.

[0035] Specifically, when the port mobile machinery is operating, it is necessary to mobilize multiple modules to work. For example, the axle 30 is called to realize the displacement function, and the driving hydraulic pump 40 is called to realize the function of handling goods and containers. However, the existing port mobile machinery often outputs power to different modules through one motor to realize the above functions, which puts forward higher requirements for the refinement of the motor. Figure 1In the embodiment of the utility model, by setting a multifunctional controller, the multifunctional controller 10 includes a high-voltage direct current input terminal 11 and a plurality of high-voltage alternating current output terminals 14, the high-voltage direct current input terminal 11 is electrically connected to the high-voltage direct current power supply module 20, the travel drive motor 31 of the vehicle bridge 30 and the main pump drive motor 41 driving the hydraulic pump 40 are each electrically connected to a high-voltage alternating current output terminal 14, so that the high-voltage direct current power supply module 20 supplies high-voltage direct current to the multifunctional controller 10 through the high-voltage direct current input terminal 11, and after receiving the high-voltage direct current, the multifunctional controller 10 converts it into high-voltage alternating current, and outputs it to the travel drive motor 31 of the vehicle bridge 30 and the main pump drive motor 41 driving the hydraulic pump 40 through the high-voltage alternating current output terminal 14, thereby driving the vehicle bridge 30 and the driving hydraulic pump 40 to operate. Among them, the high-voltage direct current power supply module 20 can be a battery box or other direct current power supply, which is not limited to this. At the same time, since the travel drive motor 31 of the axle 30 and the main pump drive motor 41 driving the hydraulic pump 40 are each electrically connected to a high-voltage AC output terminal 14, it can be understood as a parallel structure, and the control of each motor by the multifunctional controller 10 is independent of each other, and the operation of each motor is not affected by each other. At the same time, since the travel drive motor 31 of the axle 30 and the main pump drive motor 41 driving the hydraulic pump 40 are both connected to a multifunctional controller 10, in this way, the multifunctional controller 10 can reasonably distribute the received high-voltage direct current to the controlled modules that need electricity / operation, and the use of the multifunctional controller 10 for centralized power distribution is convenient for wiring layout, improves the electrical protection level, and can fully guarantee the safety of the high-voltage system. At the same time, according to the operation requirements in the current working scene, the received high-voltage direct current can be converted into multiple high-voltage alternating currents of different amplitudes and frequencies, so as to be output to the travel drive motor 31 of the axle 30 and the main pump drive motor 41 driving the hydraulic pump 40, respectively, to improve the degree of coordination between the two, thereby improving the integration and control performance of the whole vehicle. For example, when a port mobile machinery is transporting certain goods, at a certain speed, driving the hydraulic pump with a certain torque can achieve the best transport efficiency. Therefore, the multi-function controller 10 can output different high-voltage alternating currents to the travel drive motor 31 of the axle 30 and the main pump drive motor 41 of the drive hydraulic pump 40, so that the axle 30 and the drive hydraulic pump 40 cooperate to achieve better transport efficiency.

[0036] An embodiment of the utility model provides a power system for port mobile machinery, including a multifunctional controller, a high-voltage DC power supply module, an axle, and a driving hydraulic pump; the multifunctional controller includes a high-voltage DC input terminal and a plurality of high-voltage AC output terminals, the high-voltage DC input terminal is electrically connected to the high-voltage DC power supply module, and the travel drive motor of the axle and the main pump drive motor of the driving hydraulic pump are each electrically connected to a high-voltage AC output terminal; the multifunctional controller receives the high-voltage DC power supplied by the high-voltage DC power supply module through the high-voltage DC input terminal, converts the high-voltage DC power into high-voltage AC power, and adjusts the amplitude and / or frequency of the high-voltage AC power, and provides high-voltage AC power to the travel drive motor of the axle and the main pump drive motor of the driving hydraulic pump through the plurality of high-voltage AC output terminals, so as to control the operation of the axle and the driving hydraulic pump. The above technical solution, by setting up a multi-functional controller to centrally power and separately control each controlled module, simplifies the spatial layout of the power system, and solves the problems in the prior art that one motor drives multiple controlled modules, such as long transmission routes, large energy losses in the transmission process, and difficulty in achieving refined control; at the same time, a potential energy recovery pump is provided, which converts the gravitational potential energy of the port mobile machinery in the process of transporting goods into electrical energy through a potential energy recovery motor, and stores the electrical energy in a high-voltage DC power supply module, thereby reducing the energy waste of the port mobile machinery during operation and improving energy utilization and endurance.

[0037] Optionally, the power system also includes a potential energy recovery pump 50; the multi-function controller 10 also includes a first high-voltage AC power input terminal 12 and a first high-voltage DC power output terminal 13; the first high-voltage DC power output terminal 13 is electrically connected to the high-voltage DC power supply module 20, and the potential energy recovery motor of the potential energy recovery pump 50 is electrically connected to the first high-voltage AC power input terminal 12; the multi-function controller 10 also receives the AC power generated by the potential energy recovery motor of the potential energy recovery pump 50 through the first high-voltage AC power input terminal 12, converts the AC power into DC power, and transmits it to the high-voltage DC power supply module 20 through the first high-voltage DC power output terminal 13.

[0038] For details, please refer to Figure 1The multifunctional controller 10 also includes a first high-voltage AC input terminal 12 and a first high-voltage DC output terminal 13. The first high-voltage DC output terminal 13 is electrically connected to the high-voltage DC power supply module 20. The potential energy recovery motor 51 of the potential energy recovery pump 50 is electrically connected to the first high-voltage AC input terminal 12. When the port mobile machinery is working in the port, it needs to move the cargo and containers in the port. The cargo and containers to be moved are heavy. In the process of moving from a high place to a low place, there is often a large change in gravitational potential energy, which causes a waste of energy. In order to utilize this part of the gravitational potential energy, a potential energy recovery pump 50 is also provided in the power system of the port mobile machinery. When moving from a high place to a low place, the potential energy recovery pump 50 is provided. When transporting goods, the gravity of the goods will drive the potential energy recovery motor 51 of the potential energy recovery pump 50 to generate electricity. Since the potential energy recovery motor 51 of the potential energy recovery pump 50 is electrically connected to the first high-voltage AC input terminal 12 of the multi-function controller 10, the AC power generated by the potential energy recovery motor 51 is transmitted to the multi-function controller 10 through the first high-voltage AC input terminal 12. After being converted into high-voltage DC power by the multi-function controller 10, it is output to the high-voltage DC power supply module 20 through the first high-voltage DC output terminal 13 to charge it, thereby recovering the gravitational potential energy and storing the electrical energy in the high-voltage DC power supply module, thereby reducing the energy waste of port mobile machinery during operation and improving energy utilization and endurance.

[0039] Optionally, continue to refer to Figure 1 The power system also includes an air conditioner 60; the multi-function controller 10 also includes a low-voltage AC power output terminal 15, and the motor 61 of the air conditioner 60 is electrically connected to the low-voltage AC power output terminal 15 of the multi-function controller 10; the multi-function controller 10 provides low-voltage AC power to the motor 61 of the air conditioner 60 through the low-voltage AC power output terminal 15 to control the operation of the air conditioner 60.

[0040] Specifically, in order to provide a more comfortable working environment for the driver of the port mobile machinery, an air conditioner 60 is also provided in the port mobile machinery. The air conditioner 60 also needs AC power to drive the work. However, the AC power required by the air conditioner 60 is low-voltage AC power. Therefore, the motor 61 of the air conditioner is connected to the low-voltage AC power output terminal 15 of the multi-function controller 10, so as to be centrally controlled by the multi-function controller 10. After receiving the high-voltage DC power from the high-voltage DC power supply module 20, the multi-function controller 10 converts it into low-voltage AC power, and provides low-voltage AC power to the motor 61 of the air conditioner 60 through the low-voltage AC power output terminal 15, so as to power the air conditioner 60. In this way, the multi-function controller 10 can convert the received high-voltage DC power into AC power of different sizes and / or different frequencies according to the power needs of each controlled module, and then reasonably distribute it to each module, that is, the centralized power distribution of the multi-function controller 10 further improves the power supply efficiency and accuracy. At the same time, since the multifunctional controller 10 is used for unified control, the power output to each module can also be distributed according to the power demand of each controlled module; for example, if the current power of the high-voltage DC power supply module 20 is less, and at this time both the air conditioner 60 and the travel drive motor 31 of the axle 30 need to be powered, at this time the multifunctional controller 10 can, based on the importance of the two, mainly power the travel drive motor 31 of the axle 30 to realize the main functions of the port mobile machinery.

[0041] Optionally, continue to refer to Figure 1 The power system also includes a low-voltage electrical appliance 70; the multi-function controller 10 also includes a low-voltage DC power output terminal 16, and the low-voltage DC power output terminal 16 is electrically connected to the low-voltage electrical appliance 70; the multi-function controller 10 also receives the high-voltage DC power supplied by the high-voltage DC power supply module 20 through the high-voltage DC power input terminal, converts the high-voltage DC power into low-voltage DC power, and provides low-voltage DC power to the low-voltage battery 71 of the low-voltage electrical appliance 70 through the low-voltage DC power output terminal 16 to control the operation of the low-voltage electrical appliance 70.

[0042] Specifically, the power system also includes low-voltage electrical appliances 70. For example, the low-voltage electrical appliances 70 include lights, alarms, instruments and other low-voltage electrical appliances of the port mobile machinery. The multifunctional controller 10 includes a high-voltage DC input terminal 11 and a low-voltage DC output terminal 16. The high-voltage DC input terminal 11 of the multifunctional controller 10 is electrically connected to the high-voltage DC power supply module 20. In this way, the multifunctional controller 10 can receive the high-voltage DC power supplied by the high-voltage DC power supply module 20 and process the high-voltage DC power so that the processed voltage / current meets the power requirements of different parts of the whole vehicle of the port mobile machinery.

[0043] Exemplarily, the multifunctional controller 10 can also convert the received high-voltage direct current into low-voltage direct current to reduce the amplitude of the direct current. The low-voltage direct current output terminal 16 of the multifunctional controller 10 is electrically connected to the low-voltage component module 40, so that the low-voltage direct current converted by the multifunctional controller 10 can be provided to the low-voltage component module 40, and the low-voltage component module 40 can operate under the action of the low-voltage direct current. That is, the multifunctional controller 10 can reasonably distribute the received high-voltage direct current to the low-voltage component modules 40 that need electricity. The use of the multifunctional controller 10 for centralized power distribution is convenient for wiring layout, improves the electrical protection level, and can fully guarantee the safety of the high-voltage system.

[0044] Optionally, continue to refer to Figure 1 The high-voltage AC output terminal 14 of the multi-function controller 10 is multiplexed as a second high-voltage AC input terminal 17, and the high-voltage DC input terminal 11 is multiplexed as a second high-voltage DC output terminal 18; the multi-function controller 10 also receives the reverse-drag AC power generated by the reverse-drag power generation of the walking drive motor 30 in the axle 30 through the second high-voltage AC input terminal 17, converts the reverse-drag AC power into reverse-drag DC power, and provides the reverse-drag DC power to the high-voltage DC power supply module 20 through the second high-voltage DC output terminal 18.

[0045] Specifically, when the port mobile machinery is braking, the travel drive motor 30 in the axle 30 will reverse drag, and a reverse drag alternating current will be generated at this time, that is, the travel drive motor 30 acts as a generator at this time; the high-voltage AC output terminal 14 of the multi-function controller 10 is multiplexed as the second high-voltage AC input terminal 17, and the high-voltage DC input terminal 11 is multiplexed as the second high-voltage DC output terminal 18; the multi-function controller 10 is connected to the drive motor 30 through the second high-voltage AC input terminal 17, and the reverse drag alternating current generated by the reverse drag power generation of the travel drive motor 30 is transmitted to the multi-function controller 10 through the second high-voltage AC input terminal 17; wherein, the main pump drive motor 41 that drives the hydraulic pump 40 will also generate reverse drag alternating current during braking, and the reverse drag alternating current can also be transmitted to the multi-function controller 10 through the second high-voltage AC input terminal 17, and the multi-function controller 10 can also process the received reverse drag alternating current. Exemplarily, the multi-function controller 10 converts the received reverse-drag AC power into reverse-drag DC power, and the high-voltage DC power input terminal 11 of the multi-function controller 10 is multiplexed as a second high-voltage DC power output terminal 18, and the reverse-drag DC power is transmitted to the high-voltage DC power supply module 20 through the second high-voltage DC power output terminal 18, and stored in the high-voltage DC power supply module 20, thereby reducing energy waste and improving energy utilization efficiency.

[0046] Optionally, continue to refer to Figure 1The system further includes a control panel 80 ; the multi-function controller 10 further includes a control signal receiving terminal 19 ; the multi-function controller 10 receives a control signal from the control panel 80 via the control signal receiving terminal 19 .

[0047] Specifically, the multi-function controller 10 also includes a control signal receiving terminal 19; the multi-function controller 10 receives the control signal of the control panel 80 through the control signal receiving terminal 19. For example, a plurality of control options are set on the control panel 80, which can be touch-type or knob-type, and this is not limited; the user can control whether the multi-function controller 10 supplies power to each controlled module, and control the current amplitude and frequency output to each controlled module through the control panel 80. For example, when lighting is needed at night, the user can control the multi-function controller 10 to supply power to the lighting lamp of the low-voltage electrical appliance 70 through the control panel 80, so that the lighting lamp can perform lighting work.

[0048] Optionally, the power system also includes a remote monitoring module 90; the multi-function controller 10 also includes a remote monitoring control terminal 191, and the remote monitoring control terminal 191 is electrically connected to the remote monitoring module 90; the multi-function controller 10 provides voltage conversion information and motor control information to the remote monitoring module 90 through the remote monitoring control terminal 191.

[0049] Specifically, in order to monitor the operating status of the multi-function controller 10 in real time, a remote monitoring module 90 is also provided. The multi-function controller 10 also includes a remote monitoring control terminal 191, and the remote monitoring control terminal 191 is electrically connected to the remote monitoring module 90. In this way, the multi-function controller 10 can transmit its own voltage conversion information and motor control information to the remote monitoring module 90 through the remote monitoring control terminal 191, so that the user can monitor the internal data of the power system through the remote monitoring module 90.

[0050] In addition, illustratively, the remote monitoring module 80 can also be electrically connected to the high-voltage direct current module 20 to detect in real time information such as the power generation and remaining power of the high-voltage direct current module 20. The remote monitoring module 80 can also be electrically connected to the drive motor module 30 to detect in real time information such as power consumption, power generation, voltage, current, power and rotation speed of the drive motor module 30.

[0051] Optionally, the system also includes a positioning module 100; the multi-function controller 10 also includes a positioning information receiving terminal 192, and the positioning information receiving terminal 192 is electrically connected to the positioning module 100; the multi-function controller 10 receives and stores the location information provided by the positioning module 100 through the positioning information receiving terminal 192.

[0052] Specifically, since the port mobile machinery works in the port and the traffic situation in the port is relatively complicated, it is necessary to use the positioning module 100 to transmit its own position information to the multi-function controller 10 through the positioning information receiving terminal 192 of the multi-function controller 10, so that the multi-function controller 10 can use its own position information to navigate to the destination and store its own position information at the same time to trace the work path.

[0053] Based on the same concept, the embodiment of the utility model further provides a port mobile machine, which includes a power system of the port mobile machine provided in any one of the embodiments of the utility model. Therefore, the port mobile machine provided in the embodiment of the utility model has the corresponding beneficial effects of the power system of the port mobile machine provided in the embodiment of the utility model, which will not be repeated here.

[0054] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A power system for port mobile machinery, characterized in that: Includes a multi-function controller, a high-voltage DC power supply module, axles and a drive hydraulic pump; The multifunctional controller comprises a high-voltage direct current input terminal and a plurality of high-voltage alternating current output terminals, wherein the high-voltage direct current input terminal is electrically connected to the high-voltage direct current power supply module, and the travel drive motor of the axle and the main pump drive motor of the driving hydraulic pump are each electrically connected to one of the high-voltage alternating current output terminals; The multifunctional controller receives the high-voltage direct current supplied by the high-voltage direct current power supply module through the high-voltage direct current input terminal, converts the high-voltage direct current into high-voltage alternating current, and adjusts the amplitude and / or frequency of the high-voltage alternating current, and provides the high-voltage alternating current to the travel drive motor of the axle and the main pump drive motor of the drive hydraulic pump through the multiple high-voltage alternating current output terminals to control the operation of the axle and the drive hydraulic pump.

2. The power system according to claim 1, characterized in that: It also includes a potential energy recovery pump; the multifunctional controller also includes a first high-voltage alternating current input terminal and a first high-voltage direct current output terminal; The first high-voltage direct current output terminal is electrically connected to the high-voltage direct current power supply module, and the potential energy recovery motor of the potential energy recovery pump is electrically connected to the first high-voltage alternating current input terminal; The multifunctional controller also receives the alternating current generated by the potential energy recovery motor of the potential energy recovery pump through the first high-voltage alternating current input terminal, converts the alternating current into direct current, and transmits it to the high-voltage direct current power supply module through the first high-voltage direct current output terminal.

3. The power system according to claim 1, characterized in that: It also includes an air conditioner; the multifunctional controller also includes a low-voltage AC output terminal; The motor of the air conditioner is electrically connected to the low-voltage AC output terminal of the multi-function controller; The multi-function controller also receives the high-voltage direct current supplied by the high-voltage direct current power supply module through the high-voltage direct current input terminal, converts the high-voltage direct current into low-voltage alternating current, and provides the low-voltage alternating current to the motor of the air conditioner through the low-voltage alternating current output terminal to control the operation of the air conditioner.

4. The power system according to claim 1, characterized in that: It also includes low voltage electrical appliances; The multifunctional controller further comprises a low-voltage direct current output terminal, wherein the low-voltage direct current output terminal is electrically connected to the low-voltage electrical appliance; The multi-function controller also receives the high-voltage direct current supplied by the high-voltage direct current power supply module through the high-voltage direct current input terminal, converts the high-voltage direct current into low-voltage direct current, and provides the low-voltage direct current to the low-voltage battery of the low-voltage electrical appliance through the low-voltage direct current output terminal to control the operation of the low-voltage electrical appliance.

5. The power system according to claim 1, characterized in that: The high-voltage alternating current output terminal is multiplexed as a second high-voltage alternating current input terminal, and the high-voltage direct current input terminal is multiplexed as a second high-voltage direct current output terminal; The multifunctional controller also receives reverse-drag AC power generated by reverse-drag power generation of the travel drive motor in the vehicle axle through the second high-voltage AC power input terminal, converts the reverse-drag AC power into reverse-drag DC power, and provides the reverse-drag DC power to the high-voltage DC power supply module through the second high-voltage DC power output terminal.

6. The power system according to claim 1, characterized in that: It also includes a control panel; the multi-function controller also includes a control signal receiving end; the multi-function controller receives the control signal of the control panel through the control signal receiving end.

7. The power system according to claim 1, characterized in that: It also includes a remote monitoring module; The multifunctional controller further comprises a remote monitoring control terminal, wherein the remote monitoring control terminal is electrically connected to the remote monitoring module; The multifunctional controller provides voltage conversion information and motor control information to the remote monitoring module through the remote monitoring control terminal.

8. The power system according to claim 1, characterized in that: Also includes a positioning module; The multifunctional controller further comprises a positioning information receiving terminal, wherein the positioning information receiving terminal is electrically connected to the positioning module; The multi-function controller receives and stores the position information provided by the positioning module through the positioning information receiving end.

9. A port mobile machinery, characterized in that: A power system comprising the port mobile machinery according to any one of claims 1 to 8.

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