CN110884442A

CN110884442A - All-in-one integrated power configuration unit

Info

Publication number: CN110884442A
Application number: CN201811046752.6A
Authority: CN
Inventors: 贺林; 王铭伟; 关庆生
Original assignee: Beijing Huatian Automobile Technology Co Ltd; Hefei University of Technology
Current assignee: Beijing Huatian Automobile Technology Co Ltd; Hefei University of Technology
Priority date: 2018-09-08
Filing date: 2018-09-08
Publication date: 2020-03-17

Abstract

The invention discloses an integrated PCB (printed circuit board) and related configuration, wherein the PCB integrates power configuration unit elements such as a high-voltage contactor, a high-voltage relay, a low-voltage relay, a busbar, a fuse and the like, so that the PCB is named as an all-in-one integrated power configuration unit. The high-voltage part circuit is communicated with most parts through the busbar, and the PCB is connected with the low-voltage control circuit through a wiring. In the overall structure, the invention is divided into two layers, and a fuse, a connector assembly, a busbar and the like are arranged on the upper layer. High-voltage contactor, high-voltage relay have been placed to the lower floor to through the in close contact of the plastics bed course of below, reduced the pressure of each device to the PCB board, guarantee the stable in structure of PCB board. In addition, a relay group capable of being flexibly controlled is designed, and different functions are realized by an external wiring harness method. The advantages are that: the invention integrates various relays, fuses and other devices which are originally disordered into one PCB, greatly saves space and is beneficial to the maintenance of the power configuration unit.

Description

All-in-one integrated power configuration unit

Technical Field

The present invention relates to the field of integrated circuit technology, and more particularly, to an integrated circuit board.

Background

The power configuration unit of the new energy automobile is responsible for the distribution problem of the power supply, and mainly manages and distributes the charging and discharging of the whole electric automobile current; the method comprises the following steps of (1) carrying out current adjustment and supervision on each device on the electric automobile, providing isolation and protecting the electricity utilization safety of each device, and protecting the circuit from being broken; the charging and discharging protection and monitoring are carried out on the battery, the communication of the current, the voltage, the control and the detection data of the battery and the equipment is carried out, the on-off of the circuit and the control of the switching circuit are carried out, the circuit of other equipment can be disconnected during the charging process, and the damage of other equipment during the charging process is avoided. Because of its centralized power distribution, it has the characteristics of compact structure, convenient wiring and wiring, convenient detection and maintenance, etc.

The printed circuit board, also called Printed Circuit Board (PCB), connects the components to each other through the printed circuit board and wiring, which simplifies the complexity of circuit connection and the difficulty of assembly to a greater extent.

Disclosure of Invention

The invention aims to provide a PCB board, which integrates a power configuration unit into a printed circuit board.

The above-mentioned content of the invention is realized by the following scheme:

all-in-one integrated power configuration unit, its characterized in that: the high-voltage relay type bus bar comprises a high-voltage contactor, a high-voltage relay, a low-voltage relay, a bus bar, a fuse and a printed circuit board. The high-voltage contactor, the high-voltage relay, the low-voltage relay, the busbar and the fuse are all fixed on the printed circuit board. The high-voltage part circuit is communicated with most parts through the busbar, and the PCB is connected with the low-voltage control circuit through a wiring.

The PCB is divided into two layers and is characterized in that: the device such as with fuse, female arranging, connector is placed on the top plate, fixes all kinds of relays in the lower floor to support the relay through customization plastics bed course and the skid all around of PCB board below, reduce the pressure of all kinds of relay elements to the PCB board, guarantee that the PCB board is not damaged.

Drawings

Fig. 1 is a schematic diagram of an upper layer of an all-in-one integrated power distribution unit PCB.

Fig. 2 is a schematic diagram of a lower layer of a PCB of the all-in-one integrated power distribution unit.

Figure 3 is a schematic view of a plastic cushion.

Fig. 4 is a schematic diagram of a busbar.

Fig. 5 is a partially enlarged schematic view of a connection mode of the five-pin relay.

Reference numerals are used.

1	Bus bar	6	Connector assembly
				2	Fuse protector	7	Plastic cushion layer
3	High-voltage contactor	8	Skid
				4	High-voltage relay	9	PCB lower layer wiring
5	Low-voltage relay	10	PCB upper layer wiring

Detailed description of the preferred embodiments.

See the drawings.

Fig. 1 is a top level structure of an all-in-one integrated power distribution unit. As can be seen from the figure, the high voltage electricity of the storage battery or the charging gun of the electric vehicle passes through the busbar (1), leads the current to each electrical appliance, and controls the on-off of each relay through the wiring of the low voltage electricity part, thereby realizing the function of power configuration.

Fig. 2 is a lower layer structure of the all-in-one integrated power distribution unit. As can be seen from the figure, the high-voltage contactor (3) and the high-voltage relay (4) are arranged on the lower layer. And the same types are put together according to the specific functions.

Fig. 3 is a schematic diagram of a plastic cushion (7) of the all-in-one integrated power distribution unit. Design a plastics bed course (7) in the below of whole PCB board, this plastics bed course (7) and not co-altitude high-voltage relay (4), high voltage contactor (3) cooperation, through the thickness of adjustment plastic layer cooperation relay position department, make laminating that plastics bed course (7) and high voltage relay (4) and high voltage contactor (3) can be good to shape according to high voltage relay (4) and high voltage contactor (3) adds the baffle of take the altitude in the edge. The vibration of all directions when preventing the relay during operation, protection PCB board, the installation and the maintenance etc. of the relay of being convenient for simultaneously. At the lower floor, still according to the quality of each components and parts, placed 9 with solid lumber skid (8) cylinder around the great region of bearing to guarantee that the atress of PCB board is more even.

Fig. 4 is a detailed schematic diagram of the busbar (1) of the all-in-one integrated power configuration unit. As can be seen from the figure, the 4 bus bars (1) conduct most of high-voltage electricity, and damage of the high-current electricity to a PCB is avoided. The busbar (1) is not in direct contact with the PCB, and is favorable for low-voltage wiring on the PCB. According to the invention, the busbar (1) connects the PCB through the high-voltage contactor (3) and the wiring terminal, so that on one hand, current is conducted, on the other hand, a fixing effect is achieved, and the structure of the PCB is protected.

Fig. 5 is a partially enlarged schematic view of a five-pin relay connection mode of the all-in-one integrated power distribution unit. In the invention, all pins of the three five-pin relays are all led into a 20-pin connector (6), wherein 15 pins are used for connecting the relay pins, different functions are realized through an external wiring harness, and the defect of single function of a PCB (printed circuit board) circuit is solved. In addition, 24 volt standby power is provided to the three pins.

Claims

1. All-in-one integrated power configuration unit, its characterized in that: the high-voltage relay comprises a high-voltage contactor, a high-voltage relay, a low-voltage relay, a busbar, a fuse, a plug connector and a printed circuit board; the high-voltage contactor, the high-voltage relay, the low-voltage relay, the busbar and the fuse are all fixed on the printed circuit board.

2. The low-voltage relay according to claim 1, characterized in that: all pins of the three low-voltage relays are led into one connector, and different functions are achieved through different connection modes of external wiring harnesses.

3. The high-voltage relay according to claim 1, characterized in that: the high-voltage relay is arranged on the lower layer of the PCB, and a plastic cushion layer is designed below the high-voltage relay.

4. The plastic mat of claim 3, wherein: there is a plastics bed course in the below of whole PCB board, and this plastics bed course cooperates with high-voltage relay, high-voltage contactor of co-altitude not, through the thickness of adjustment plastic layer cooperation relay position department, makes the laminating that plastics bed course and high-voltage relay and high-voltage contactor can be good to shape according to high-voltage relay and high-voltage contactor adds the baffle of take the altitude in the edge.

5. The busbar according to claim 1, wherein: the bus bar is provided with a fixing hole in a penetrating way and is connected with the PCB through a wiring terminal.

6. The connector assembly of claim 1, wherein: and a control pin of the high-voltage contactor is led out of the plug connector.

7. The connector assembly of claim 1, wherein: for different functional requirements, different types of plug connectors are adopted.

8. The printed circuit board of claim 1, wherein: and part of the lines are simultaneously wired by adopting an upper layer and a lower layer.