Power supply vehicle for engineering machinery

Abstract

The utility model discloses an engineering machinery power supply vehicle which comprises a vehicle body, a high-low voltage control box and two battery systems, the vehicle body is provided with a walking mechanism and a power supply interface, the power supply interface is used for being connected with electric equipment, the two battery systems are arranged on the vehicle body, and the high-low voltage control box is provided with two sets of input interfaces and one set of output interfaces. The two groups of input interfaces are electrically connected to the two battery systems respectively, the output interface is electrically connected to the power supply interface, and the high-low voltage control box can control one of the two battery systems to be communicated with the output interface. The engineering machinery power supply vehicle provided by the embodiment of the utility model is provided with the two mutually independent battery systems, the two battery systems can independently discharge outwards under the control of the high-low voltage control box, one of the two battery systems can be charged, and the other of the two battery systems can be discharged, so that the engineering machinery power supply vehicle can continuously supply power to electric equipment; and the endurance time of the electric equipment is prolonged, the power-off time of the electric equipment is shortened, and the working efficiency of the electric equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to power supply technical field more specifically, relate to a kind of engineering machinery power supply car. BACKGROUND

[0002] Electric equipment has battery, and running power is provided by battery, when the battery of electric equipment is short of electricity, it needs to drive to charging station and charge, during charging, electric equipment cannot work, and a lot of time is wasted. In order to solve the technical problem, engineering machinery power supply car emerges as the times require, engineering machinery power supply car is provided with battery, and can be connected with electric equipment through power cable, to supply power to electric equipment, so that electric equipment can maintain longer working state. Engineering machinery power supply car usually only sets up one battery system, and can only discharge or charge at the same time, when discharging to short of electricity state, it needs to return to charging station and charge, at this time, a new engineering machinery power supply car is needed to supply power to electric equipment, so that electric equipment can continue to work. In addition, when engineering machinery power supply car has only one battery system, the battery system has large power, when the power of single battery system exceeds 1000 degrees, the battery temperature difference is not easy to control, and the consistency of cell is not good. SUMMARY

[0003] In order to solve one of the above technical defects, the engineering machinery power supply car is provided in the embodiment of the application.

[0004] The application adopts the following technical scheme:

[0005] An engineering machinery power supply car comprises:

[0006] Vehicle body, the vehicle body has walking mechanism and power supply interface, and the power supply interface is used for connecting electric equipment;

[0007] Two battery systems, two battery systems are arranged on the vehicle body;

[0008] High-low voltage control box, the high-low voltage control box has two groups of input interfaces and an output interface, two groups of input interfaces are electrically connected to two battery systems respectively, and the output interface is electrically connected to the power supply interface; The high-low voltage control box can control two battery systems to be connected to the output interface.

[0009] Optionally, the battery system comprises a box shell and a plurality of battery modules;

[0010] The box shell has a cavity;

[0011] Each battery module is arranged in the box shell, and the battery module is directly exposed to the cavity of the box shell.

[0012] Optionally, two groups of charging ports are arranged on the vehicle body.

[0013] One group of the charging ports is electrically connected to one of the battery systems.

[0014] The other group of the charging ports is electrically connected to the other battery system.

[0015] Optionally, the two groups of charging ports are arranged at the tail of the vehicle body.

[0016] Optionally, the power supply interface is arranged at the side of the head of the vehicle body.

[0017] Optionally, the two battery systems are arranged in sequence along the width direction of the vehicle body.

[0018] Optionally, each of the two battery systems comprises a battery module and a water-cooling unit, and the water-cooling unit is connected to a water-cooling pipeline in the battery module.

[0019] Optionally, the battery module and the water-cooling unit are arranged in sequence along the length direction of the vehicle body.

[0020] Optionally, the walking mechanism comprises an electric motor, and the battery system is electrically connected to the walking mechanism.

[0021] Optionally, the high-low voltage control box has a low-voltage circuit and a wireless communication module connected to the low-voltage circuit.

[0022] The low-voltage circuit is electrically connected to the two battery systems.

[0023] The wireless communication module is used for communication connection with the electric device.

[0024] By adopting the above technical solution, the application has the following beneficial effects:

[0025] The engineering machinery power supply vehicle provided by the embodiment of the application has two independent battery systems, and the two battery systems can be independently discharged under the control of the high-low voltage control box. One battery system can be charged and the other can be discharged, so as to ensure that the engineering machinery power supply vehicle can continuously supply power to the electric device, prolong the endurance time of the electric device, reduce the power-off time of the electric device, and improve the working efficiency of the electric device.

[0026] The specific implementation manner of the application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings, which are part of the present application, serve to provide a further understanding of the present application, and the schematic embodiments of the present application and the descriptions thereof serve to explain the present application, but do not constitute an improper limitation on the present application. Obviously, the drawings described below are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings. In the drawings:

[0028] Figure 1 A cooperation structure schematic diagram of the power supply vehicle and the electric equipment of the engineering machinery provided by the embodiments of the present disclosure is shown.

[0029] In the drawings: 1, vehicle body; 2, battery system; 21, battery module; 22, water cooling unit; 3, charging port; 4, power supply interface; 5, high-low voltage control box; 6, low-voltage power supply; 7, cab; 8, electric equipment; 9, charging gun.

[0030] It should be noted that these drawings and textual descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments will be described clearly and completely below in conjunction with the drawings of the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0032] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms “upper”, “lower”, “inner”, “outer” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or components referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0033] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms “mounting” and “connection” should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0034] Reference should be made to Figure 1As shown, the application provides an engineering machinery power supply vehicle, comprising a vehicle body 1, a high-low voltage control box 5 and two battery systems 2. The vehicle body 1 has a walking mechanism and a power supply interface 4 for connecting an electrified device 8. The two battery systems 2 are arranged on the vehicle body 1. The high-low voltage control box 5 has two groups of input interfaces and one group of output interfaces. The two groups of input interfaces are electrically connected to the two battery systems 2 respectively. The output interface is electrically connected to the power supply interface 4. The high-low voltage control box 5 can control the two battery systems 2 to be connected to the output interface alternately.

[0035] For example, the high-low voltage control box 5 can include a high-voltage circuit and a low-voltage circuit. The high-voltage circuit has two groups of input interfaces and one group of output interfaces. The high-voltage circuit has a relay. The two battery systems 2 can be isolated by the relay. The two battery systems 2 are connected to the output interface alternately to supply power to the electrified device 8. The low-voltage circuit is also connected to the two battery systems 2 respectively to obtain some data of the battery system 2, such as power, cell temperature and voltage information, etc. It should be noted that the structure and principle of the high-low voltage control box 5 are known in the art. The specific structure and principle of the high-low voltage control box 5 will not be described here. The high-low voltage control box 5 can be directly selected from mature products on the market.

[0036] The engineering machinery power supply vehicle provided by the application has two independent battery systems 2. The two battery systems 2 can be discharged independently under the control of the high-low voltage control box 5. One of the two battery systems 2 can be charged and the other can be discharged. This ensures that the engineering machinery power supply vehicle can continuously supply power to the electrified device 8, prolongs the endurance time of the electrified device 8, reduces the power-off time of the electrified device 8, and improves the working efficiency of the electrified device 8. The two battery systems 2 can also be charged simultaneously and independently, which significantly improves the charging efficiency.

[0037] In some possible embodiments, the battery system 2 includes a box shell and a plurality of battery modules. The box shell has a cavity. Each battery module is arranged in the box shell and directly exposed to the cavity of the box shell.

[0038] In the related art, a plurality of battery packs are arranged in the box shell of the battery system 2. Each battery pack includes a shell and a plurality of battery modules arranged in the shell. In the application, the battery modules are not assembled into battery packs but directly assembled in the box shell, thereby simplifying the structure of the battery system 2, reducing the weight and improving the energy density.

[0039] The power supply vehicle of the engineering machinery in the application does not set a PCS module, and does not need to convert direct current into alternating current. The power supply vehicle of the engineering machinery in the application directly adopts a direct current on-vehicle form, and the direct current power supply of the battery system 2 directly supplies power to the electrified device 8, thereby avoiding energy loss in the direct current and alternating current conversion process. At the same time, by adopting the direct current on-vehicle form, the electrical structure of the power supply vehicle and the electrified device 8 is greatly simplified, and the cost is reduced.

[0040] In some possible embodiments, two groups of charging ports 3 are arranged on the vehicle body 1, one group of the charging ports 3 is electrically connected to one of the battery systems 2, and the other group of charging ports 3 is electrically connected to the other battery system 2.

[0041] Two groups of independent charging interfaces are arranged on the vehicle body 1, and can be respectively connected to charging equipment to charge the corresponding battery systems 2, thereby significantly improving the charging efficiency. The charging ports can be national standard charging ports, and two sets of charging piles can be used for double-gun charging.

[0042] In some possible embodiments, the two groups of charging ports 3 are arranged at the tail of the vehicle body 1. The power supply interface 4 is arranged on the side of the vehicle head of the vehicle body 1. The vehicle head of the vehicle body 1 is provided with a cab 7.

[0043] By arranging the charging ports 3 at the rear of the vehicle body 1, charging can be facilitated. By arranging the power supply interface 4 at the front of the vehicle body 1, the power supply vehicle of the engineering machinery can follow the electrified device 8 to move and supply power. The power supply interface 4 of the power supply vehicle of the engineering machinery can be a national standard charging gun seat, and can be connected to a national standard charging gun 9 to supply power to the electrified device 8.

[0044] In some possible embodiments, the two battery systems 2 are arranged in sequence along the width direction of the vehicle body 1. The two battery systems 2 are arranged reasonably and regularly, the space of the vehicle body 1 is fully utilized, and the two battery systems 2 are symmetrically arranged along the width direction of the vehicle body 1, so that the weight of the entire vehicle body 1 is balanced on both sides, and the vehicle body 1 will not be tilted.

[0045] In some possible embodiments, each of the two battery systems 2 includes a battery module 21 and a water-cooling unit 22, and the water-cooling unit 22 is connected to the water-cooling pipeline in the battery module 21. The two battery systems 2 of the power supply vehicle of the engineering machinery provided in the application are respectively matched with a water-cooling unit 22, the two battery systems 2 independently perform thermal management, the temperature difference is easy to control, and the consistency of the battery cells is good. It should be noted that the battery module 21 includes the box shell and the plurality of battery modules in the above.

[0046] In some possible embodiments, the battery module 21 and the water-cooling unit 22 are arranged in sequence along the length direction of the vehicle body 1.

[0047] In the embodiment, the battery modules 21 and the water cooling unit 22 are arranged along the length direction of the vehicle body 1 in sequence, and the structural layout is reasonable, which is beneficial to the balanced distribution of the overall mass of the vehicle body 1.

[0048] In some possible embodiments, the walking mechanism comprises an electric motor, and the battery system 2 and the walking mechanism are electrically connected. The power supply vehicle of the present application provides walking power for the electric motor through the battery system 2.

[0049] In some possible embodiments, the high-low voltage control box 5 has a low-voltage circuit and a wireless communication module connected to the low-voltage circuit, the low-voltage circuit and the two battery systems 2 are electrically connected, and the wireless communication module is used for communication connection with the electric device 8. The electric device 8 also has a wireless communication module, and the electric device 8 has a control end, which is electrically connected to the wireless communication module on the electric device 8. The data of the battery system 2 of the power supply vehicle of the engineering machinery can be sent to the electric device 8 through the wireless communication module, and the control end of the electric device 8 can display the corresponding information, which is convenient for the driver to show. The control end of the electric device 8 can accept user input control instructions, which can be transmitted to the power supply vehicle of the engineering machinery through the cooperation of the two wireless communication modules, to control the power supply vehicle of the engineering machinery to execute the corresponding instructions, for example, the control end of the electric device 8 can send instructions to control the power supply of the power supply vehicle of the engineering machinery under the control of the driver. After receiving the instruction, the power supply vehicle of the engineering machinery can control one of the two battery systems 2 to be connected to the output interface to supply power to the electric device 8.

[0050] In some possible embodiments, the vehicle body 1 is also provided with a low-voltage power supply 6, which is used to supply power to the low-voltage circuit to ensure the normal operation of the low-voltage circuit. The low-voltage circuit can include a BMS module, a wireless communication module and other modules, etc.

[0051] The above only describes the preferred embodiments of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with the preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above-mentioned technical content without departing from the technical solution of the present application, and equivalent embodiments with equivalent changes can be made. Any simple modification, equivalent change and modification of the above embodiments based on the technical essence of the present application are still within the scope of the present application.

Claims

1. A power supply vehicle for a construction machine, characterized by comprising: The utility model relates to a kind of electric vehicle, including: Vehicle body, the vehicle body has traveling mechanism and power supply interface, the power supply interface is used to connect electric device; Two battery systems, two the battery systems are arranged on the vehicle body; High-low voltage control box, the high-low voltage control box has two groups of input interfaces and a group of output interfaces, two the input interfaces are electrically connected to two the battery systems respectively, the output interface is electrically connected to the power supply interface, the high-low voltage control box can control two the battery systems to be communicated with the output interface selectively.

2. The power supply cart of claim 1, wherein, The battery system includes box shell and multiple battery modules; The box shell has cavity; Each battery module is arranged in the box shell, and the battery module is directly exposed to the cavity of the box shell.

3. The power supply cart of claim 1, wherein, Two groups of charging ports are arranged on the vehicle body; One group of charging ports is electrically connected to one battery system; Another group of charging ports is electrically connected to another battery system.

4. The utility vehicle of claim 3, characterized in that, The two groups of charging ports are arranged at the tail of the vehicle body.

5. The utility vehicle of claim 1, wherein, The power supply interface is arranged on the side of the vehicle head of the vehicle body.

6. The utility vehicle of Claim 1, wherein, Two battery systems are arranged in sequence along the width direction of the vehicle body.

7. The utility vehicle of claim 1, wherein, Two the battery systems include battery module and water-cooling unit respectively, and the water-cooling unit is connected with water-cooling pipeline in the battery module.

8. The utility vehicle of claim 7, characterized in that, The battery module and water-cooling unit are arranged in sequence along the length direction of the vehicle body.

9. The utility vehicle of claim 1, wherein, The traveling mechanism includes motor, and the battery system and the traveling mechanism are electrically connected.

10. The utility vehicle of claim 1, wherein, The high-low voltage control box has low-voltage circuit and wireless communication module connected with the low-voltage circuit; The low-voltage circuit is electrically connected to two battery systems; The wireless communication module is used for communication connection with electric device.

Images