High-voltage power distribution equipment, mining vehicle and power distribution control method

Abstract

The invention relates to the technical field of batteries, and discloses high-voltage power distribution equipment, a mining vehicle and a power distribution control method. The high-voltage power distribution equipment comprises a box body, a BMS control device, a wiring assembly and a power distribution device, the box body is divided into the first cavity and the second cavity, the BMS control device is arranged in the first cavity, the power distribution device is arranged in the second cavity, and the power distribution device and the BMS control device are integrated in the same box body, so that the overall layout occupation of equipment is reduced, the internal wiring structure is optimized, and the complexity caused by cable crossing in dispersed layout is avoided. Circuit connection is achieved through the wiring terminals, wiring is simplified, risks of electromagnetic interference and signal interference are reduced, and therefore the stability of the system is improved. High-pressure and low-pressure elements are isolated through the re-combustion design of the cavity-divided structure, the explosion-proof safety of the system is enhanced, the system is suitable for complex environments such as mines, and the safety and reliability of equipment are improved.

Description

Technical Field

[0001] The present invention relates to the field of battery technology, and in particular to a high-voltage power distribution device, a mining vehicle and a power distribution control method. Background Art

[0002] Mining explosion-proof rubber-tyred trackless vehicles face many technical challenges when operating in the complex environment of mines, especially in high-voltage power management and battery system management. Existing explosion-proof high-voltage distribution boxes and battery management systems (BMS) usually adopt a separate design and are placed in different boxes. This design makes the overall layout of mining vehicles more complicated and increases the risk of signal interference between systems, especially in terms of wiring layout, which is prone to signal cross-interference problems. In addition, since traditional high-voltage distribution boxes and BMS control modules are split and are not allowed to operate underground in mines, their adaptability and safety in the use environment are further limited.

[0003] In the prior art, independent high-voltage distribution boxes and BMS management boxes are used to manage the input and output of high-voltage power supplies and batteries, respectively, which have problems such as large size, complex wiring, and many interferences. The high-voltage distribution box and the BMS management system are connected through a large number of signal lines, which not only increases the complexity of the high-voltage cables and the risk of signal interference, but also limits the adaptability and safety of explosion-proof equipment in complex mining environments. Summary of the invention

[0004] In view of this, the present invention provides a high-voltage power distribution equipment, a mining vehicle and a power distribution control method to solve the problems in the prior art of complex layout and wiring of high-voltage distribution boxes, serious signal interference, poor safety and poor adaptability in complex mining environments.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0006] In a first aspect, the present invention provides a high-voltage power distribution equipment, comprising: a box, a BMS control device, a wiring assembly and a power distribution device; the box is provided with a first cavity and a second cavity; the BMS control device is arranged in the first cavity, comprising an electrically connected relay and a BMS main board; the wiring assembly comprises a wiring terminal arranged between the first cavity and the second cavity, a power source is electrically connected to the relay via the wiring terminal, and the relay provides a low-voltage power source for the BMS main board; the power distribution device is arranged in the second cavity, and the relay is electrically connected to the power distribution device, so as to be suitable for powering an external power distribution device.

[0007] It has the following advantages: the box is divided into a first cavity and a second cavity, the BMS control device is arranged in the first cavity, and the power distribution device is arranged in the second cavity. By integrating the power distribution device and the BMS control device in the same box, the overall layout of the equipment is reduced, and the internal wiring structure is optimized, thereby avoiding the complexity caused by cable crossing in the decentralized layout. Circuit connection is achieved through wiring terminals, which simplifies wiring and reduces the risk of electromagnetic interference and signal interference, thereby improving the stability of the system. The split-chamber structure re-ignition design isolates high-voltage and low-voltage components, enhances the explosion-proof safety of the system, and is suitable for complex environments such as mines, improving the safety and reliability of the equipment.

[0008] According to an embodiment of the first aspect of the present invention, a partition is provided in the middle of the box body, the partition is suitable for dividing the box body into the first cavity and the second cavity, and the wiring terminal is passed through the partition.

[0009] According to an embodiment of the first aspect of the present invention, the high-voltage power distribution equipment further includes a through-wall terminal penetrated through the partition, and the through-wall terminal provides signal transmission for the BMS mainboard.

[0010] According to an embodiment of the first aspect of the present invention, the wiring assembly further comprises a plurality of wiring posts, which are passed through the partition so as to be suitable for connecting the wiring terminals and the BMS control device, and for connecting the relay and the power distribution device.

[0011] According to an embodiment of the first aspect of the present invention, the high-voltage power distribution equipment also includes a cable introduction device and a cable lead-out device, and the cable introduction device and the cable lead-out device are respectively arranged on two side walls of the box body, and the high-voltage power supply and the low-voltage power supply enter the second cavity through the cable introduction device, and the power distribution equipment is connected to the external power distribution equipment through the distribution cable, and the distribution cable is passed through the cable lead-out device.

[0012] According to an embodiment of the first aspect of the present invention, the power distribution device includes a copper busbar and an output fuse connected to the copper busbar, and the copper busbar is connected to the relay through the terminal so that the high voltage power supply is output to the output fuse through the relay.

[0013] According to an embodiment of the first aspect of the present invention, the high-voltage power distribution equipment further includes a current sensor disposed in the first cavity, the current sensor being connected to an input terminal of the BMS mainboard, and the current sensor being suitable for monitoring current.

[0014] According to an embodiment of the first aspect of the present invention, the relay comprises a positive relay and a negative relay, and the positive relay and the negative relay are used to control the positive output and the negative output of the high voltage power supply respectively.

[0015] In a second aspect, the present invention further provides a mining vehicle, comprising a vehicle frame and the above-mentioned high-voltage power distribution equipment, wherein the above-mentioned high-voltage power distribution equipment is arranged on the vehicle frame.

[0016] The advantages are as follows: installing the high-voltage power distribution equipment on mining vehicles can adapt to complex environments such as mines, enhance the explosion-proof safety of the system, and improve the safety and reliability of the vehicle.

[0017] In a third aspect, the present invention further provides a power distribution control method, comprising the following steps:

[0018] The electric door lock is turned on, and the BMS main board obtains low-voltage power supply;

[0019] The vehicle control system outputs a wake-up signal, and the wake-up signal is received by the BMS mainboard via the through-wall terminal. The BMS mainboard controls the relay to output high-voltage power to the power distribution device.

[0020] The advantages are as follows: by providing low-voltage power to the BMS mainboard when the electric door lock is turned on, the BMS system can be stably started and work normally, thereby improving the reliability of the system. After the vehicle control system outputs a wake-up signal, the signal is transmitted to the BMS mainboard through the wall terminal to avoid external interference during signal transmission and ensure the stability of signal transmission. After the BMS mainboard receives the wake-up signal, it accurately controls the relay to output high-voltage power to the power distribution device to achieve efficient and reliable high-voltage power supply. This method effectively simplifies the vehicle power management process, optimizes the system response speed, and improves the stability and reliability of the overall system, so that it is suitable for high-voltage power management in complex environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A one-axis view of a high-voltage power distribution device provided in some embodiments of the present invention;

[0023] Figure 2 Another axial view of a high voltage power distribution device provided in some embodiments of the present invention;

[0024] Figure 3 A top view of a high-voltage power distribution device provided in some embodiments of the present invention, facing a first cavity;

[0025] Figure 4A top view of a high-voltage power distribution device provided in some embodiments of the present invention, facing the second cavity;

[0026] Figure 5 This is a schematic diagram of the structure of a partition of a high-voltage power distribution device provided in some embodiments of the present invention.

[0027] Description of reference numerals:

[0028] 1. Box body; 11. Partition; 12. First cavity; 13. Second cavity; 2. BMS control device; 21. BMS mainboard; 22. Relay; 3. Wiring assembly; 31. Wiring terminal; 32. Terminal block; 4. Power distribution device; 41. Copper busbar; 42. Output fuse; 5. Through-wall terminal; 6. Current sensor; 7. Cable entry device; 8. Cable exit device. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0033] Reference Figure 1 and Figure 2 As shown, the present invention provides a high-voltage power distribution equipment, including: a box body 1, a BMS control device 2, a wiring assembly 3 and a power distribution device 4; the box body 1 is provided with a first cavity 12 and a second cavity 13; the BMS control device 2 is arranged in the first cavity 12, including an electrically connected relay 22 and a BMS main board 21; the wiring assembly 3 includes a wiring terminal 31 arranged between the first cavity 12 and the second cavity 13, the power supply is electrically connected to the relay 22 via the wiring terminal 31, and the relay 22 provides a low-voltage power supply for the BMS main board 21; the power distribution device 4 is arranged in the second cavity 13, and the relay 22 is electrically connected to the power distribution device 4, so as to be suitable for powering an external power distribution device.

[0034] Specifically, the box 1 is divided into a first cavity 12 and a second cavity 13, the BMS control device 2 is arranged in the first cavity 12, and the distribution device 4 is arranged in the second cavity 13. By integrating the distribution device 4 and the BMS control device 2 in the same box 1, the overall layout occupancy of the equipment is reduced, and the internal wiring structure is optimized, thereby avoiding the complexity caused by cable crossing in the decentralized layout. Circuit connection is achieved through the wiring terminal 31, which simplifies wiring and reduces the risk of electromagnetic interference and signal interference, thereby improving the stability of the system. The split-chamber structure re-ignition design isolates high-voltage and low-voltage components, enhances the explosion-proof safety of the system, and is suitable for complex environments such as mines, thereby improving the safety and reliability of the equipment.

[0035] Reference Figure 5 As shown, in the first embodiment of the present invention, a partition 11 is provided in the middle of the box body 1, and the partition 11 is suitable for dividing the box body 1 into a first cavity 12 and a second cavity 13, and the connection terminal 31 is passed through the partition 11.

[0036] Specifically, the partition 11 is arranged in the middle of the box body 1 to separate the box body 1 into a first cavity 12 and a second cavity 13. The first cavity 12 is used to install the BMS control device 2, and the second cavity 13 is used to install the distribution device 4, thereby realizing a high degree of integration between the BMS control device 2 and the high-voltage distribution device 4. Through the connection of the terminal block 31, the wiring is simplified, the electromagnetic interference is reduced, and the cross interference of the distribution wiring is reduced, thereby reducing the complexity of the layout, so as to facilitate the subsequent equipment maintenance.

[0037] In the first embodiment of the present invention, the high-voltage power distribution equipment further includes a through-wall terminal 5 that is penetrated through the partition 11 , and the through-wall terminal 5 provides signal transmission for the BMS mainboard 21 .

[0038] Specifically, the through-wall terminal 5 is installed on the partition 11 of the box body 1 to realize the explosion-proof transmission of the signal. When the electric door lock is turned on, the vehicle control system sends a wake-up signal to the BMS main board 21. The wake-up signal is transmitted to the BMS main board 21 through the through-wall terminal 5. After the BMS main board 21 receives the wake-up signal, the control relay 22 outputs a high-voltage power supply to the power distribution device 4. The design of the through-wall terminal 5 not only ensures the stability of signal transmission, but also ensures the safety of the equipment in a high-voltage operating environment, so as to be suitable for complex operating environments such as mines.

[0039] Reference Figure 5 As shown, in the embodiment of the first aspect of the present invention, the wiring assembly 3 also includes a plurality of terminals 32, which are penetrated on the partition 11 to be suitable for connecting the terminal 31 and the BMS control device 2, and suitable for connecting the relay 22 and the distribution device 4.

[0040] The terminal block 31 and the BMS control device 2 are connected via the terminal post 32 to ensure stable transmission of the high voltage power supply, while reducing wiring, reducing line complexity, avoiding electromagnetic interference, and improving safety and stability.

[0041] Reference Figure 4 As shown, in the first embodiment of the present invention, the high-voltage power distribution equipment also includes a cable introduction device 7 and a cable lead-out device 8, and the cable introduction device 7 and the cable lead-out device 8 are respectively arranged on the two side walls of the box body 1. The high-voltage power supply and the low-voltage power supply enter the second cavity 13 through the cable introduction device 7, and the power distribution equipment is connected to the external power distribution equipment through the distribution cable, and the distribution cable is passed through the cable lead-out device 8.

[0042] Reference Figure 4 As shown, according to an embodiment of the first aspect of the present invention, the power distribution device 4 includes a copper busbar 41 and an output fuse 42 connected to the copper busbar 41 , and the copper busbar 41 is connected to the relay 22 through the terminal 32 so that the high voltage power supply is output to the output fuse 42 through the relay 22 .

[0043] Specifically, in order to achieve efficient and safe power distribution, the high-voltage power distribution equipment also includes a cable introduction device 7 and a cable lead-out device 8. The cables are passed through the cable introduction device 7 and the cable lead-out device 8 to reasonably plan the line direction and avoid cross distribution, which affects subsequent maintenance. In some embodiments of the present invention, the cable introduction device 7 and the cable lead-out device 8 are separately arranged on two opposite side walls of the box 1 to ensure the reasonable routing of the cables.

[0044] It is understandable that the power distribution device 4 includes a copper busbar 41 and an output fuse 42. The copper busbar 41 is used to transmit the high-voltage power supply to the relay 22 through the terminal 32, and the output fuse 42 is used to protect the circuit system from overload or short circuit. When the relay 22 receives the control signal from the BMS mainboard 21, the copper busbar 41 outputs the high-voltage power supply to the external power distribution equipment to ensure the safe and reliable operation of the system.

[0045] Reference Figure 3 As shown, in the embodiment of the first aspect of the present invention, the high-voltage power distribution equipment also includes a current sensor 6 arranged in the first cavity 12, the current sensor 6 is connected to the input end of the BMS mainboard 21, and the current sensor 6 is suitable for monitoring current.

[0046] Specifically, in order to further enhance the stability of the system, a current sensor 6 is also installed in the first cavity 12. The current sensor 6 is connected to the input end of the BMS mainboard 21 to monitor the current data passing through the BMS control system in real time. When the BMS mainboard 21 detects abnormal current, the high-voltage power supply is disconnected to prevent the system from malfunctioning or electrical accidents. Thereby improving the safety and real-time monitoring capability of the system. The current sensor 6 is a Hall sensor.

[0047] In the first embodiment of the present invention, the relay 22 includes a positive relay and a negative relay, and the positive relay and the negative relay are used to control the positive output and the negative output of the high voltage power supply respectively.

[0048] In the first embodiment of the present invention, a plurality of fixed connectors are provided on the side walls of the box body 1 to enhance the impact resistance and explosion-proof capability of the system.

[0049] In a second aspect, the present invention further provides a mining vehicle, comprising a vehicle frame and a high-voltage power distribution device, wherein the high-voltage power distribution device is arranged on the vehicle frame.

[0050] Specifically, installing this high-voltage power distribution equipment on mining vehicles can adapt to complex environments such as mines, enhance the explosion-proof safety of the system, and improve the safety and reliability of the vehicle.

[0051] In a third aspect, the present invention further provides a power distribution control method, comprising the following steps:

[0052] The electric door lock is turned on, and the BMS main board 21 obtains low-voltage power;

[0053] The vehicle control system outputs a wake-up signal, which is received by the BMS mainboard 21 via the through-wall terminal 5 , and the BMS mainboard 21 controls the relay 22 to output high-voltage power to the power distribution device 4 .

[0054] Specifically, by providing a low-voltage power supply to the BMS mainboard 21 when the electric door lock is turned on, it is ensured that the BMS system can start stably and work normally, thereby improving the reliability of the system. After the vehicle control system outputs a wake-up signal, the signal is transmitted to the BMS mainboard 21 through the wall terminal 5 to avoid external interference during signal transmission and ensure the stability of signal transmission. After receiving the wake-up signal, the BMS mainboard 21 accurately controls the relay 22 to output a high-voltage power supply to the power distribution device 4 to achieve efficient and reliable high-voltage power supply. This method effectively simplifies the vehicle power management process, optimizes the system response speed, and improves the stability and reliability of the overall system, so as to be suitable for high-voltage power management in complex environments.

[0055] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A high voltage power distribution equipment, characterized in that: include: The box body (1) is provided with a first cavity (12) and a second cavity (13); A BMS control device (2), disposed in the first cavity (12), comprising an electrically connected relay (22) and a BMS mainboard (21); A wiring assembly (3), comprising a wiring terminal (31) disposed between the first cavity (12) and the second cavity (13), wherein a power source is electrically connected to the relay (22) via the wiring terminal (31), and the relay (22) provides a low-voltage power source for the BMS mainboard (21); A power distribution device (4) is disposed in the second cavity (13), and the relay (22) is electrically connected to the power distribution device (4) so ​​as to be suitable for supplying power to an external power distribution device.

2. The high voltage power distribution equipment according to claim 1, characterized in that: A partition (11) is provided in the middle of the box body (1), and the partition (11) is suitable for dividing the box body (1) into the first cavity (12) and the second cavity (13), and the connection terminal (31) is passed through the partition (11).

3. The high voltage power distribution equipment according to claim 2, characterized in that: It also includes a through-wall terminal (5) that is penetrated through the partition (11), and the through-wall terminal (5) provides signal transmission for the BMS mainboard (21).

4. The high voltage power distribution equipment according to claim 2, characterized in that: The wiring assembly (3) further comprises a plurality of wiring posts (32), wherein the wiring posts (32) are arranged on the partition (11) so as to be suitable for connecting the wiring terminal (31) and the BMS control device (2), and suitable for connecting the relay (22) and the power distribution device (4).

5. The high voltage power distribution equipment according to claim 1, characterized in that: It also includes a cable introduction device (7) and a cable lead-out device (8), wherein the cable introduction device (7) and the cable lead-out device (8) are respectively arranged on the two side walls of the box body (1), the high voltage power supply and the low voltage power supply enter the second cavity (13) through the cable introduction device (7), and the power distribution equipment is connected to the external power distribution equipment through the power distribution cable, and the power distribution cable is passed through the cable lead-out device (8).

6. The high voltage power distribution equipment according to claim 4, characterized in that: The power distribution device (4) comprises a copper busbar (41) and an output fuse (42) connected to the copper busbar (41); the copper busbar (41) is connected to the relay (22) via the terminal (32), so that the high-voltage power supply is output to the output fuse (42) via the relay (22).

7. The high voltage power distribution equipment according to claim 1, characterized in that: It also includes a current sensor (6) disposed in the first cavity (12), the current sensor (6) being connected to an input end of the BMS mainboard (21), and the current sensor (6) being suitable for monitoring current.

8. The high voltage power distribution equipment according to claim 1, characterized in that: The relay (22) comprises a positive relay and a negative relay, and the positive relay and the negative relay are used to control the positive output and the negative output of the high voltage power supply respectively.

9. A mining vehicle, characterized in that: It comprises a vehicle frame and the high-voltage power distribution equipment according to any one of claims 1 to 8, wherein the high-voltage power distribution equipment is arranged on the vehicle frame.

10. A power distribution control method, characterized in that: The following steps are involved: The electric door lock is opened, and the BMS main board (21) obtains low-voltage power; The vehicle control system outputs a wake-up signal, and the wake-up signal is received by the BMS mainboard (21) via the through-wall terminal (5). The BMS mainboard (21) controls the relay (22) to output a high-voltage power supply to the power distribution device (4).

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