All-in-one controller with optimized electromagnetic compatibility

Abstract

The utility model discloses an all-in-one controller with optimized electromagnetic compatibility, which relates to the technical field of new energy, and comprises a control box, a transverse partition plate, a first vertical partition plate and a second vertical partition plate are arranged in the control box, the transverse partition plate divides the control box into an upper layer cavity and a lower layer cavity, a low-voltage control panel is arranged in the upper layer cavity, and the first vertical partition plate and the second vertical partition plate are arranged in the lower layer cavity. A direct-current high-voltage component, an alternating-current high-voltage component and a low-voltage distributor plate are arranged in the lower-layer cavity, the first vertical partition plate is arranged between the direct-current high-voltage component and the alternating-current high-voltage component, and the second vertical partition plate is arranged between the alternating-current high-voltage component and the low-voltage distributor plate. According to the all-in-one controller, the low-voltage control panel is isolated from the direct-current high-voltage component and the alternating-current high-voltage component by adopting the transverse partition plate, and the direct-current high-voltage component, the alternating-current high-voltage component and the low-voltage distributor plate are isolated one by one by adopting the first vertical partition plate and the second vertical partition plate, so that partition shielding is realized, and the anti-interference capability of the all-in-one controller is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy, and specifically refers to an all-in-one controller with optimized electromagnetic compatibility performance. Background Art

[0002] Electromagnetic compatibility is a comprehensive assessment of the interference size and anti-interference ability of electronic products in electromagnetic fields, and is one of the most important indicators of product quality. Compared with traditional cars, electric vehicles have a complex electromagnetic environment. The all-in-one integrated controller contained in them integrates modules such as MCU, PDU, DCDC, DCAC and BDU, and electronic and electrical components account for a large proportion, so the requirements for electromagnetic compatibility are relatively high.

[0003] The DC high-voltage components, AC high-voltage components, low-voltage distribution boards, and low-voltage control boards in existing all-in-one controllers usually use a certain protective distance to isolate interference. However, due to the limited space in the control box, the protective distance between the components is small, and the DC high-voltage components and AC high-voltage components are likely to interfere with the low-voltage distribution boards and low-voltage control boards, resulting in electromagnetic coupling problems. Therefore, it is urgent to optimize the EMC design of the all-in-one controller. Summary of the invention

[0004] The utility model provides an all-in-one controller with optimized electromagnetic compatibility performance, so as to solve the problem of poor electromagnetic compatibility performance of the existing all-in-one controller.

[0005] This new type of application adopts the following technical solutions:

[0006] An all-in-one controller with optimized electromagnetic compatibility performance includes a control box, wherein a transverse partition, a first vertical partition and a second vertical partition are provided in the control box, the transverse partition divides the control box into an upper cavity and a lower cavity, a low-voltage control board is provided in the upper cavity, a DC high-voltage component, an AC high-voltage component and a low-voltage distribution board are provided in the lower cavity, the first vertical partition is arranged between the DC high-voltage component and the AC high-voltage component, and the second vertical partition is arranged between the AC high-voltage component and the low-voltage distribution board.

[0007] Furthermore, the DC high-voltage component includes a power supply module, the AC high-voltage component includes an MCU drive module, and the first vertical partition is arranged between the power supply module and the MCU drive module; the low-voltage control board includes an MCU low-voltage control board connected to the MCU drive module.

[0008] Furthermore, the DC high-voltage component also includes a PDU module, and a third vertical partition is also provided in the control box, and the third vertical partition is arranged between the PDU module and the power supply module; the low-voltage control board includes a PDU low-voltage control board connected to the PDU module.

[0009] Furthermore, the partition includes a first partition and a second partition mounted in the control box, the MCU low-voltage control board is mounted above the first partition, and the PDU low-voltage control board is mounted above the second partition.

[0010] Furthermore, a hollow protrusion is provided on the side wall of the control box, and the second vertical partition plate and the hollow protrusion constitute a low-voltage line bin for installing the low-voltage distribution board.

[0011] Furthermore, a power wiring compartment is provided beside the power supply module, and a power connector is provided in the power wiring compartment and penetrates to the outer wall of the control box.

[0012] Furthermore, a three-phase electrical connection compartment is provided beside the MCU driving module, and the three-phase electrical connection compartment is provided with a three-phase electrical connector that penetrates to the outer side wall of the control box.

[0013] Furthermore, the control box is provided with a cover body, which is provided with an inspection window at corresponding positions of the power connection compartment and the three-phase power connection compartment, and a maintenance cover is detachably provided at the inspection window.

[0014] Furthermore, the first vertical partition board and the third vertical partition board are Z-shaped plates.

[0015] From the above description of the structure of the utility model, it can be seen that compared with the prior art, the utility model has the following advantages:

[0016] The utility model uses a horizontal partition to isolate the low-voltage control panel from the DC high-voltage components and the AC high-voltage components, and uses a first vertical partition and a second vertical partition to isolate the DC high-voltage components, the AC high-voltage components and the low-voltage distribution board one by one, thereby realizing partition shielding and effectively improving the anti-interference ability of the all-in-one controller. Due to the design concept of partition shielding, the protection distance between different components is greatly reduced, so the layout in the control box is more compact and reasonable, which helps to solve the problem of insufficient layout space for the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a schematic diagram of the exploded structure of the utility model.

[0019] Figure 3 A schematic diagram of the internal structure of the control box in the utility model.

[0020] In the figure: 1-control box; 11-transverse partition; 111-first transverse partition; 112-second transverse partition; 12-first vertical partition; 13-second vertical partition; 14-third vertical partition; 15-fixed column; 17-cover; 171-maintenance window; 172-maintenance cover; 2-low-voltage distribution board; 21-low-voltage line compartment; 3-power supply module; 31-power connector; 32-copper busbar assembly; 33-power wiring compartment; 4-MCU driver module; 41-three-phase electrical connector; 42-three-phase electrical wiring compartment; 5-MCU low-voltage control board; 6-PDU module; 61-low-voltage pre-charge relay; 7-PDU low-voltage control board. DETAILED DESCRIPTION

[0021] The specific implementation of the present invention is described below with reference to the accompanying drawings. In order to fully understand the present invention, many details are described below, but for those skilled in the art, the present invention can be implemented without these details.

[0022] like Figures 1 to 3 As shown, an all-in-one controller with optimized electromagnetic compatibility performance includes a control box 1, in which a transverse partition 11, a first vertical partition 12 and a second vertical partition 13 are arranged. The transverse partition 11 divides the control box 1 into an upper cavity and a lower cavity. A low-voltage control board is arranged in the upper cavity, and a DC high-voltage component, an AC high-voltage component and a low-voltage distribution board 2 are arranged in the lower cavity. The first vertical partition 12 is arranged between the DC high-voltage component and the AC high-voltage component, and the second vertical partition 13 is arranged between the AC high-voltage component and the low-voltage distribution board 2. The utility model adopts the transverse partition 11 to isolate the low-voltage control board from the DC high-voltage component and the AC high-voltage component in the longitudinal direction, and adopts the first vertical partition 12 and the second vertical partition 13 to isolate the DC high-voltage component, the AC high-voltage component and the low-voltage distribution board 2 one by one in the transverse direction, thereby realizing partition shielding and effectively improving the anti-interference ability of the all-in-one controller. Due to the design concept of partition shielding, the protection distance between different components is greatly reduced, so the layout inside the control box 1 is more compact and reasonable, which helps to solve the problem of insufficient layout space for the entire vehicle.

[0023] like Figure 2 and Figure 3As shown, the DC high-voltage component includes a power supply module 3, the AC high-voltage component includes an MCU driver module 4, and the first vertical partition 12 is arranged between the power supply module 3 and the MCU driver module 4; the low-voltage control board includes an MCU low-voltage control board 5 connected to the MCU driver module 4. The power supply module 3 referred to in this embodiment specifically includes a power connector 31 and a copper busbar assembly 32 connected to a power battery or a charging gun. The DC high voltage of the power supply module 3 and the AC high voltage of the MCU driver module 4 will cause mutual interference, so this embodiment uses the first vertical partition 12 to isolate the two, thereby shielding interference; the MCU driver module 4 and the MCU low-voltage control board 5 transmit information through the wiring, and the prior art does not take isolation measures for the two, so there are often problems such as poor wiring of the wiring and the inability to transmit signals, resulting in failures. This embodiment uses a horizontal partition 11 to isolate the MCU driver module 4 and the MCU low-voltage control board 5, thereby shielding the mutual interference between the two.

[0024] like Figure 2 and Figure 3 As shown, the DC high voltage component also includes a PDU module 6, and a third vertical partition 14 is also provided in the control box 1, and the third vertical partition 14 is arranged between the PDU module 6 and the power supply module 3; the low voltage control board includes a PDU low voltage control board 7 connected to the PDU module 6. Specifically, the PDU module 6 is provided with a low voltage pre-charge relay 61, and the low voltage pre-charge relay 61 will be interfered by the DC high voltage from the power supply module 3, so the third vertical partition 14 in this embodiment is used to shield the interference.

[0025] like Figure 2 and Figure 3 As shown, the diaphragm 11 includes a first diaphragm 111 and a second diaphragm 112 mounted in the control box 1, the MCU low-voltage control board 5 is mounted above the first diaphragm 111, and the PDU low-voltage control board 7 is mounted above the second diaphragm 112. When the MCU module or the PDU module 6 fails, it is only necessary to remove the corresponding diaphragm for maintenance, which is more convenient. As a specific installation method, a plurality of fixing columns 15 are provided in the control box 1, the first diaphragm 111 and the second diaphragm 112 are bolted on the fixing columns 15, the first diaphragm 111 and the second diaphragm 112 are also bolted on the fixing columns 15, and the MCU low-voltage control board 5 and the PDU low-voltage control board 7 are also bolted on the fixing columns 15. This installation method is not only convenient for disassembly and assembly, but also can ensure that there is a certain protective distance between the low-voltage control board and the DC high-voltage components and the AC high-voltage components, thereby preventing interference.

[0026] like Figure 3As shown, a hollow convex portion is provided on the side wall of the control box 1, and the second vertical partition 13 and the hollow convex portion constitute a low-voltage wire bin 21 for installing the low-voltage distribution board 2, and a plurality of low-voltage connectors are provided in the low-voltage wire bin 21. The design of the low-voltage wire bin 21 is not only convenient for external wiring, but also fully utilizes the longitudinal space of the control box 1, making the layout in the control box 1 more compact and reasonable.

[0027] like Figures 1 to 3 As shown, a power connection compartment 33 is provided beside the power supply module 3, and a power connector 31 is provided in the power connection compartment 33 and penetrates the outer wall of the control box 1. A three-phase electric connection compartment 42 is provided beside the MCU drive module 4, and a three-phase electric connection compartment 42 is provided with a three-phase electric connector 41 that penetrates the outer wall of the control box 1. The independent power connection compartment 33 and the three-phase electric connection compartment 42 can prevent foreign matter from entering other areas inside the control box 1 during external wiring, thereby ensuring the safety of operation. The control box 1 is provided with a cover body 17, and the cover body 17 is provided with an inspection window 171 at the corresponding position of the power connection compartment 33 and the three-phase electric connection compartment 42, and an inspection cover 172 is detachably provided at the inspection window 171. The inspection cover 172 can be used to conveniently maintain and repair the components in the power connection compartment 33 and the three-phase electric connection compartment 42, and the design is more reasonable.

[0028] like Figure 1 As shown, based on the layout characteristics of the power supply module 3, the MCU driver module 4 and the PDU module 6 in this embodiment, the first vertical partition 12 and the third vertical partition 14 both adopt a Z-shaped structure design, and the first vertical partition 12 and the third vertical partition 14 are also provided with a plurality of fixing columns 15 for installing the transverse partition.

[0029] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. An all-in-one controller with optimized electromagnetic compatibility performance, comprising a control box, characterized in that: A transverse partition, a first vertical partition and a second vertical partition are provided in the control box. The transverse partition divides the control box into an upper cavity and a lower cavity. A low-voltage control board is provided in the upper cavity, and a DC high-voltage component, an AC high-voltage component and a low-voltage distribution board are provided in the lower cavity. The first vertical partition is provided between the DC high-voltage component and the AC high-voltage component, and the second vertical partition is provided between the AC high-voltage component and the low-voltage distribution board.

2. The all-in-one controller for optimizing electromagnetic compatibility performance according to claim 1, characterized in that: The DC high-voltage component includes a power supply module, the AC high-voltage component includes an MCU drive module, and the first vertical partition is arranged between the power supply module and the MCU drive module; the low-voltage control board includes an MCU low-voltage control board connected to the MCU drive module.

3. The all-in-one controller for optimizing electromagnetic compatibility performance according to claim 2, characterized in that: The DC high-voltage component also includes a PDU module. A third vertical partition is also provided in the control box. The third vertical partition is arranged between the PDU module and the power supply module. The low-voltage control board includes a PDU low-voltage control board connected to the PDU module.

4. The all-in-one controller for optimizing electromagnetic compatibility performance according to claim 3, characterized in that: The transverse partition includes a first transverse partition and a second transverse partition mounted in the control box, the MCU low-voltage control board is mounted above the first transverse partition, and the PDU low-voltage control board is mounted above the second transverse partition.

5. The all-in-one controller for optimizing electromagnetic compatibility performance according to claim 1, characterized in that: The side wall of the control box is provided with a hollow convex portion, and the second vertical partition plate and the hollow convex portion constitute a low-voltage line bin for installing the low-voltage distribution board.

6. The all-in-one controller for optimizing electromagnetic compatibility performance according to claim 2, characterized in that: A power wiring compartment is provided beside the power supply module, and a power connector is provided in the power wiring compartment and penetrates to the outer side wall of the control box.

7. The all-in-one controller for optimizing electromagnetic compatibility performance according to claim 6, characterized in that: A three-phase electrical connection compartment is provided beside the MCU driving module, and the three-phase electrical connection compartment is provided with a three-phase electrical connector that penetrates to the outer side wall of the control box.

8. The all-in-one controller for optimizing electromagnetic compatibility performance according to claim 7, characterized in that: The control box is provided with a cover body, which is provided with an inspection window at corresponding positions of the power connection compartment and the three-phase power connection compartment, and a maintenance cover is detachably provided at the inspection window.

9. The all-in-one controller for optimizing electromagnetic compatibility performance according to claim 3, characterized in that: The first vertical partition plate and the third vertical partition plate are Z-shaped plates.

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