A multi-branch real-time monitoring high-voltage power distribution device

Abstract

The utility model discloses a kind of multi-branch real-time monitoring high-voltage power distribution device, belong to pure electric unmanned environmental sanitation vehicle high-voltage power distribution device technical field, including battery input device, multi-branch power unit, high-voltage power distribution device, real-time monitoring device, the multi-branch power unit includes chassis DCDC, upper layer DCDC, OBC, wireless charging, driving motor, main brush motor, four branch edge brush motor, two branch centrifugal fan, two branch dust shaking fan.The utility model in real-time monitoring device is integrated with high-voltage power distribution device, can real-time monitoring multi-branch power unit voltage, current state, not only can satisfy whole car reasonable distribution high-voltage power supply, can also real-time monitoring each branch power unit voltage, current state, greatly improve the operation reliability of high-voltage power distribution unit and fault fast diagnosis, increase maintenance convenience, reduce development cost, lay foundation for high-voltage power distribution device efficient stable operation.

Description

Technical Field

[0001] This utility model relates to the technical field of high-voltage power distribution devices for pure electric unmanned sanitation vehicles, and in particular to a high-voltage power distribution device with multiple branches that can be monitored in real time. Background Technology

[0002] As is well known, in the electrical system of pure electric autonomous vehicles, the high-voltage power distribution system is an extremely important part. It is responsible for distributing the voltage and current of each branch power unit. The high-voltage relays and high-voltage fuses of each branch power unit are crucial to the normal operation and safety of the entire high-voltage power distribution system.

[0003] However, the existing high-voltage power distribution system for pure electric unmanned vehicles lacks real-time monitoring of the working status of each branch power unit. When the relay of the power unit is stuck or open, the fuse blows, or the working voltage and current of each branch are abnormal, it is impossible to make rapid detection and make corresponding protection mechanisms. Therefore, there is an urgent need for a high-voltage power distribution device that can monitor multiple branches in real time to solve the above-mentioned defects of the existing technology. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-branch high-voltage power distribution device capable of real-time monitoring.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A multi-branch high-voltage power distribution device with real-time monitoring includes a battery input device, a multi-branch power consumption unit, a high-voltage power distribution device, and a real-time monitoring device. The multi-branch power consumption unit includes a chassis DC-DC converter, an upper-level DC-DC converter, an OBC, a wireless charging device, a drive motor, a main brush motor, four side brush motors, two centrifugal fans, and two dust-vibrating fans. The high-voltage power distribution device includes a chassis DC-DC enable relay K1, a chassis DC-DC fuse FU1, an upper-level DC-DC enable relay K2, a chassis DC-DC fuse FU2, an OBC fuse FU3, a wireless charging fuse FU4, a drive motor relay K3, a drive motor fuse FU5, a main brush motor relay K4, a main brush motor fuse FU6, a four-branch side brush motor main relay K5, a four-branch side brush motor main fuse FU11, a side brush motor branch ① fuse FU7, a side brush motor branch ② fuse FU8, a side brush motor branch ③ fuse FU9, a side brush motor branch ④ fuse FU10, a centrifugal fan branch ① relay K6, a centrifugal fan branch ① fuse FU12, a centrifugal fan branch ② relay K7, a centrifugal fan branch ② fuse FU13, a two-branch dust-vibrating fan main relay K8, and a two-branch dust-vibrating fan main fuse FU14. The real-time monitoring device includes multi-channel voltage sampling, multi-channel current sampling, multi-channel relay drive control, interlock detection unit, and communication unit.

[0006] Preferably, the multi-branch high-voltage power distribution device can be monitored in real time. The interlock detection unit can detect in real time whether the high-voltage connector of the multi-branch power unit is reliably connected, and the interlock status can be fed back to the vehicle controller via the communication unit.

[0007] Preferably, the multi-branch system can monitor the high-voltage power distribution device in real time, receive communication commands from the vehicle controller, and perform power distribution control through the chassis DC-DC enable relay K1 and the chassis DC-DC fuse FU1. The system can also monitor and upload the working status of the vehicle controller relay K1 in real time through voltage sampling ①.

[0008] Preferably, the multi-branch system can monitor the high-voltage power distribution device in real time, receive communication commands from the vehicle controller, and perform power distribution control through the upper-level DC-DC enable relay K2 and the upper-level DC-DC fuse FU2. The system can also monitor and upload the working status of the vehicle controller relay K2 in real time through voltage sampling ②.

[0009] Preferably, the multi-branch system can monitor the high-voltage power distribution device in real time, receive communication commands from the vehicle controller, and perform power distribution control through the drive motor relay K3 and drive motor fuse FU5. The system can also monitor and upload the working status of the vehicle controller relay K3 and the real-time current value of the drive motor branch in real time through voltage sampling ③ and current sampling ⑩.

[0010] Preferably, the multi-branch can monitor the high-voltage power distribution device in real time, receive communication commands from the vehicle controller, and control the power distribution through the main brush motor relay K4 and the main brush motor fuse FU6. The working status of the vehicle controller relay K4 and the real-time current value of the main brush motor branch are monitored and uploaded in real time through voltage sampling ④ and current sampling ①.

[0011] Preferably, the multi-branch system can monitor the high-voltage power distribution device in real time, receive communication commands from the vehicle controller to control the power distribution of the four-branch side brush motor main relay K5, the four-branch side brush motor main fuse FU11, the side brush motor branch ① fuse FU7, the side brush motor branch ② fuse FU8, the side brush motor branch ③ fuse FU9, and the side brush motor branch ④ fuse FU10. The system monitors and uploads the working status of the vehicle controller relay K5 and the real-time current values ​​of each branch of the four-branch side brush motor in real time through voltage sampling ⑤ and current sampling ②, ③, ④, and ⑤.

[0012] Preferably, the multiple branches can monitor the high-voltage power distribution device in real time, receive communication commands from the vehicle controller, and perform power distribution control through relay K6 of centrifugal fan branch ①, fuse FU12 of centrifugal fan branch ①, relay K7 of centrifugal fan branch ②, and fuse FU13 of centrifugal fan branch ②. The working status of relays K6 and K7 of the vehicle controller and the real-time current values ​​of each branch of the two centrifugal fans are monitored and uploaded in real time through voltage sampling ⑥, voltage sampling ⑦, and current sampling ⑥ and ⑦.

[0013] Preferably, the multi-branch high-voltage power distribution device can be monitored in real time, and the communication commands from the vehicle controller can be received to control the power distribution through the main relay K8 of the two-branch dust fan and the main fuse FU14 of the two-branch dust fan. The working status of the vehicle controller relay K8 and the real-time current value of each branch of the two-branch dust fan can be monitored and uploaded in real time through voltage sampling ⑧, current sampling ⑧, and ⑨.

[0014] The beneficial effects of this utility model are as follows: 1. This utility model proposes a multi-branch high-voltage power distribution device with real-time monitoring capability. This utility model integrates a real-time monitoring device with a high-voltage power distribution device, enabling real-time monitoring of the voltage and current status of multiple branch power units. It not only meets the requirement of reasonable distribution of high-voltage power to the whole vehicle, but also monitors the voltage and current status of each branch power unit in real time, greatly improving the operational reliability and rapid fault diagnosis of the high-voltage power distribution unit, increasing maintenance convenience, reducing development costs, and laying the foundation for the efficient and stable operation of high-voltage power distribution devices. Attached Figure Description

[0015] Figure 1 This invention presents a schematic diagram of a multi-branch, real-time monitoring high-voltage power distribution device for use in pure electric unmanned sanitation vehicles. Detailed Implementation

[0016] Reference Figure 1 A multi-branch high-voltage power distribution device with real-time monitoring includes a battery input device, a multi-branch power supply unit, a high-voltage power distribution device, and a real-time monitoring device. The battery input device is the positive and negative battery interface G1 in the figure. The multi-branch power supply unit includes a chassis DC-DC converter, an upper DC-DC converter, an OBC, a wireless charging device, a drive motor, a main brush motor, four side brush motors, two centrifugal fans, and two dust-vibrating fans. The multi-branch power supply unit also includes connector G2, chassis DC-DC converter, connector G3, upper DC-DC converter, connector G4, OBC, connector G5, drive motor, connector G6, main brush motor, connector G7, four side brush motors and two dust-vibrating fans, connector G8, two centrifugal fans, connector G9, and wireless charging. The high-voltage power distribution equipment includes chassis DC-DC enable relay K1, chassis DC-DC fuse FU1, upper-level DC-DC enable relay K2, chassis DC-DC fuse FU2, OBC fuse FU3, wireless charging fuse FU4, drive motor relay K3, drive motor fuse FU5, main brush motor relay K4, main brush motor fuse FU6, four-branch side brush motor main relay K5, four-branch side brush motor main fuse FU11, side brush motor branch ① fuse FU7, side brush motor branch ② fuse FU8, side brush motor branch ③ fuse FU9, side brush motor branch ④ fuse FU10, centrifugal fan branch ① relay K6, centrifugal fan branch ① fuse FU12, centrifugal fan branch ② relay K7, centrifugal fan branch ② fuse FU13, two-branch dust-vibrating fan main relay K8, and two-branch dust-vibrating fan main fuse FU14. The real-time monitoring device includes multi-channel voltage sampling, multi-channel current sampling, multi-channel relay drive control, interlock detection unit, and communication unit. It communicates with the electric vehicle controller, receives relevant instructions, completes the control of each branch relay and the detection of interlock signals of each power unit connector, and feeds back the status of the high-voltage power distribution system to the vehicle controller in real time.

[0017] In this utility model, the high-voltage power distribution device of multiple branches can be monitored in real time. The interlock detection unit can detect in real time whether the high-voltage connector of the power consumption unit of multiple branches is reliably connected. The interlock status is fed back to the vehicle controller via the communication unit. The multi-branch high-voltage power distribution device can be monitored in real time. It receives communication commands from the vehicle controller and performs power distribution control through chassis DC-DC enable relay K1 and chassis DC-DC fuse FU1. It monitors and uploads the working status of vehicle controller relay K1 in real time through voltage sampling ①. Multiple branches can monitor the high-voltage power distribution device in real time, receive communication commands from the vehicle controller, and perform power distribution control through the upper DC-DC enable relay K2 and the upper DC-DC fuse FU2. The working status of the vehicle controller relay K2 is monitored and uploaded in real time through voltage sampling ②. Multiple branches can monitor the high-voltage power distribution device in real time, receive communication commands from the vehicle controller, and control the power distribution through the drive motor relay K3 and drive motor fuse FU5. The working status of the vehicle controller relay K3 and the real-time current value of the drive motor branch are monitored and uploaded in real time through voltage sampling ③ and current sampling ⑩. The high-voltage power distribution device can be monitored in real time through multiple branches. It receives communication commands from the vehicle controller and performs power distribution control through the main brush motor relay K4 and the main brush motor fuse FU6. It monitors and uploads the working status of the vehicle controller relay K4 and the real-time current value of the main brush motor branch in real time through voltage sampling ④ and current sampling ①. The multi-branch system can monitor the high-voltage power distribution device in real time and receive communication commands from the vehicle controller to control the power distribution of the four-branch side brush motor main relay K5, the four-branch side brush motor main fuse FU11, the side brush motor branch ① fuse FU7, the side brush motor branch ② fuse FU8, the side brush motor branch ③ fuse FU9, and the side brush motor branch ④ fuse FU10. The system monitors and uploads the working status of the vehicle controller relay K5 and the real-time current value of each branch of the four-branch side brush motor in real time through voltage sampling ⑤ and current sampling ②, ③, ④, and ⑤. Multiple branches can monitor the high-voltage power distribution device in real time, receive communication commands from the vehicle controller, and control the power distribution through relay K6 of centrifugal fan branch ①, fuse FU12 of centrifugal fan branch ①, relay K7 of centrifugal fan branch ②, and fuse FU13 of centrifugal fan branch ②. The working status of relays K6 and K7 of the vehicle controller and the real-time current value of each branch of the two centrifugal fans are monitored and uploaded in real time through voltage sampling ⑥, voltage sampling ⑦, and current sampling ⑥ and ⑦. The high-voltage power distribution device can be monitored in real time through multiple branches. It receives communication commands from the vehicle controller and performs power distribution control through the main relay K8 of the two dust fans and the main fuse FU14 of the two dust fans. The working status of the vehicle controller relay K8 and the real-time current value of each branch of the two dust fans are monitored and uploaded in real time through voltage sampling (⑧), current sampling (⑧), and (⑨).

[0018] Working principle: In the real-time monitoring device, multiple voltage samples are collected through independent voltage signal acquisition and connected to the voltage sampling points of each branch. By comparing the output voltage sampling points of each branch with the positive input voltage sampling points of the HPDU, the working status of the high-voltage relays and high-voltage fuses of each power unit is monitored and determined in real time. In the real-time monitoring device, multiple current samples are connected to the current sampling points of each branch through independent current Hall sensors. By monitoring the output current value of each branch in real time, the data is fed back to the vehicle controller via the communication unit. By integrating the real-time monitoring device with the high-voltage power distribution device, the voltage and current status of multiple branch power units can be monitored in real time. This not only meets the requirement of reasonable distribution of high-voltage power to the whole vehicle, but also allows for real-time monitoring of the voltage and current status of each branch power unit. This greatly improves the operational reliability and rapid fault diagnosis of the high-voltage power distribution unit, increases maintenance convenience, reduces development costs, and lays the foundation for the efficient and stable operation of the high-voltage power distribution device.

[0019] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-branch high-voltage power distribution device with real-time monitoring capability, comprising a battery input device, a multi-branch power consumption unit, a high-voltage power distribution device, and a real-time monitoring device, characterized in that, The multi-branch power supply unit includes a chassis DC-DC converter, an upper-level DC-DC converter, an OBC, a wireless charging unit, a drive motor, a main brush motor, four side brush motors, two centrifugal fans, and two dust-vibrating fans. The high-voltage power distribution device includes a chassis DC-DC enable relay K1, a chassis DC-DC fuse FU1, an upper-level DC-DC enable relay K2, a chassis DC-DC fuse FU2, an OBC fuse FU3, a wireless charging fuse FU4, a drive motor relay K3, a drive motor fuse FU5, a main brush motor relay K4, a main brush motor fuse FU6, a four-branch side brush motor main relay K5, a four-branch side brush motor main fuse FU11, a side brush motor branch ① fuse FU7, a side brush motor branch ② fuse FU8, a side brush motor branch ③ fuse FU9, a side brush motor branch ④ fuse FU10, a centrifugal fan branch ① relay K6, a centrifugal fan branch ① fuse FU12, a centrifugal fan branch ② relay K7, a centrifugal fan branch ② fuse FU13, a two-branch dust-vibrating fan main relay K8, and a two-branch dust-vibrating fan main fuse FU14. The real-time monitoring device includes multi-channel voltage sampling, multi-channel current sampling, multi-channel relay drive control, interlock detection unit, and communication unit.

2. The multi-branch high-voltage power distribution device with real-time monitoring according to claim 1, characterized in that, The multi-branch system can monitor the high-voltage power distribution device in real time. The interlock detection unit can detect whether the high-voltage connectors of the multi-branch power units are reliably connected in real time, and the interlock status can be fed back to the vehicle controller via the communication unit.

3. A multi-branch high-voltage power distribution device capable of real-time monitoring according to claim 2, characterized in that, The system receives communication commands from the vehicle controller and performs power distribution control through the chassis DC-DC enable relay K1 and chassis DC-DC fuse FU1. The system monitors and uploads the working status of the vehicle controller relay K1 in real time through voltage sampling ①.

4. A multi-branch high-voltage power distribution device capable of real-time monitoring according to claim 1, characterized in that, The multiple branches can monitor the high-voltage power distribution device in real time, receive communication commands from the vehicle controller, and perform power distribution control through the upper-level DC-DC enable relay K2 and the upper-level DC-DC fuse FU2. The working status of the vehicle controller relay K2 is monitored and uploaded in real time through voltage sampling ②.

5. A multi-branch high-voltage power distribution device capable of real-time monitoring according to claim 1, characterized in that, The multiple branches can monitor the high-voltage power distribution device in real time, receive communication commands from the vehicle controller, and control the power distribution through the drive motor relay K3 and drive motor fuse FU5. The working status of the vehicle controller relay K3 and the real-time current value of the drive motor branch are monitored and uploaded in real time through voltage sampling ③ and current sampling ⑩.

6. A multi-branch high-voltage power distribution device capable of real-time monitoring according to claim 1, characterized in that, The multiple branches can monitor the high-voltage power distribution device in real time, receive communication commands from the vehicle controller, and control the power distribution through the main brush motor relay K4 and the main brush motor fuse FU6. The working status of the vehicle controller relay K4 and the real-time current value of the main brush motor branch are monitored and uploaded in real time through voltage sampling ④ and current sampling ①.

7. A multi-branch high-voltage power distribution device capable of real-time monitoring according to claim 1, characterized in that, The multiple branches can monitor the high-voltage power distribution device in real time, and receive communication commands from the vehicle controller to control the power distribution of the four-branch side brush motor main relay K5, the four-branch side brush motor main fuse FU11, the side brush motor branch ① fuse FU7, the side brush motor branch ② fuse FU8, the side brush motor branch ③ fuse FU9, and the side brush motor branch ④ fuse FU10. Through voltage sampling ⑤ and current sampling ②, ③, ④, and ⑤, the working status of the vehicle controller relay K5 and the real-time current value of each branch of the four-branch side brush motor are monitored and uploaded in real time.

8. A multi-branch high-voltage power distribution device capable of real-time monitoring according to claim 1, characterized in that, The multiple branches can monitor the high-voltage power distribution device in real time, receive communication commands from the vehicle controller, and perform power distribution control through relay K6 of centrifugal fan branch ①, fuse FU12 of centrifugal fan branch ①, relay K7 of centrifugal fan branch ②, and fuse FU13 of centrifugal fan branch ②. The working status of relays K6 and K7 of the vehicle controller and the real-time current value of each branch of the two centrifugal fans are monitored and uploaded in real time through voltage sampling ⑥, voltage sampling ⑦, and current sampling ⑥ and ⑦.

9. A multi-branch high-voltage power distribution device capable of real-time monitoring according to claim 1, characterized in that, The multiple branches can monitor the high-voltage power distribution device in real time, receive communication commands from the vehicle controller, and control the power distribution through the main relay K8 of the two branch dust fans and the main fuse FU14 of the two branch dust fans. The working status of the vehicle controller relay K8 and the real-time current value of each branch of the two dust fans are monitored and uploaded in real time through voltage sampling (⑧), current sampling (⑧), and (⑨).

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