CN216467651U

CN216467651U - BDU module for power battery system of passenger car

Info

Publication number: CN216467651U
Application number: CN202122834637.9U
Authority: CN
Inventors: 孔春泉; 董书文; 李骏
Original assignee: Chuangyuan Technology Co ltd
Current assignee: Chuangyuan Technology Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-05-10
Anticipated expiration: 2031-11-18

Abstract

The utility model discloses a BDU module for a power battery system of a passenger car, wherein an electrical appliance isolation plate is arranged on a lower shell, a pre-charging relay and a pre-charging resistor are arranged on one side of the electrical appliance isolation plate, a main circuit fuse is arranged on the other side of the electrical appliance isolation plate, the pre-charging resistor is connected with the pre-charging relay to form a pre-charging circuit, a main positive relay and a main negative relay are arranged on the outer side of the lower shell, the main positive relay, the main negative relay, the main circuit fuse and a connecting copper plate are connected to form a charging and discharging circuit, a binding post is connected to the pre-charging relay, and an output protective cover is arranged on the binding post. The utility model adopts the mode of assembling the upper shell and the lower shell to integrate the electric device into the BDU, thereby reducing the installation space of the electric device. Meanwhile, the BDU structure of the utility model is provided with an electrical appliance isolation plate in the middle of the high-voltage inlet and outlet ends and an output protective cover above the BDU structure, thereby realizing the safety protection of the high-voltage input and output ends and improving the electrical safety.

Description

BDU module for power battery system of passenger car

The technical field is as follows:

the utility model relates to a BDU module for a power battery system of a passenger vehicle.

Background art:

the integration and modularization of the battery system of the power passenger car have become the main research direction of the battery system. The BDU is used as a core component of a battery system of a passenger car and plays an important role in the system. If the electric parts are installed dispersedly, more battery pack space is occupied, and meanwhile, the electric parts exposed outside are also great potential safety hazards during installation and maintenance. For the limited space of the battery system, the space of electric devices is urgently needed to be reduced, the installation cost of the whole vehicle is reduced, and the reliability of the battery management system is improved, so that the integrated BDU is particularly important.

The utility model content is as follows:

the present invention is directed to solving the problems of the prior art described above and to providing a BDU module for a passenger vehicle power battery system.

The technical scheme adopted by the utility model is as follows:

a BDU module for a power battery system of a passenger car comprises an upper shell, a pre-charging relay, a lower shell, a main negative relay, an output protective cover, a main positive relay, a main circuit fuse, a connecting copper plate and a pre-charging resistor, wherein the upper shell and the lower shell are buckled with each other, the pre-charging relay, the main circuit fuse, the connecting copper plate and the pre-charging resistor are arranged between the upper shell and the lower shell, an electric appliance isolating plate is arranged on the lower shell, the pre-charging relay and the pre-charging resistor are arranged on one side of the electric appliance isolating plate, the main circuit fuse is arranged on the other side of the electric appliance isolating plate, the pre-charging resistor is connected with the pre-charging relay to form a pre-charging circuit, the main positive relay and the main negative relay are arranged on the outer side of the lower shell, the main positive relay, the main negative relay, the main circuit fuse and the connecting copper plate are connected to form a charging and discharging circuit, a binding post is connected on the pre-charging relay, an output protective cover is arranged on the binding post.

Furthermore, a Hall sensor for collecting current is arranged on the outer side of the lower shell.

Further, the upper shell and the lower shell are both made of PC materials.

Further, connect the copper tablet for T2 red copper, avoid nickel plating and form the nickel coating at connecting the copper tablet, thickness is 5 ~ 8 um.

The utility model has the following beneficial effects:

the utility model integrates the electric device into the BDU by adopting the mode of assembling the upper shell and the lower shell, thereby reducing the installation space of the electric device, reducing the installation cost, increasing the reliability of the product and increasing the safety during operation. Meanwhile, the BDU structure of the utility model is provided with an electrical appliance isolation plate in the middle of the high-voltage inlet and outlet ends and an output protective cover above the BDU structure, thereby realizing the safety protection of the high-voltage input and output ends and improving the electrical safety.

Description of the drawings:

FIG. 1 is a block diagram of the present invention.

In the figure: 1. an upper housing; 2. a pre-charging relay; 3. a lower housing; 4. a main negative relay; 5. an output protective cover; 6. a main positive relay; 7. a Hall sensor; 8. a main loop fuse; 9. connecting a copper plate; 10. and (6) pre-charging the resistor.

The specific implementation mode is as follows:

the utility model will be further described with reference to the accompanying drawings.

Referring to fig. 1, the BDU module for a power battery system of a passenger car according to the present invention includes an upper housing 1, a pre-charge relay 2, a lower housing 3, a main negative relay 4, an output protection cover 5, a main positive relay 6, a main circuit fuse 8, a connecting copper plate 9, and a pre-charge resistor 10. Go up casing 1 and casing 3 lock joint each other down, pre-charge relay 2, main circuit insurance 8, connect copper tablet 9 and pre-charge resistance 10 and locate between casing 1 and the casing 3 down, be equipped with electrical apparatus division board 31 on casing 3 down, pre-charge relay 2 and pre-charge resistance 10 arrange one side of electrical apparatus division board 31 in, main circuit insurance 8 arranges the opposite side of electrical apparatus division board 31 in, pre-charge resistance 10 links to each other with pre-charge relay 2 and forms the pre-charge circuit, and main positive relay 6 and main negative relay 4 locate the outside of casing 3 down, and main positive relay 6, main negative relay 4, main circuit insurance 8 and connect copper tablet 9 and link to each other and form the charge-discharge circuit, are connected with the terminal on pre-charge relay 2, are equipped with output visor 5 on the terminal. A hall sensor 7 for current collection is provided on the outer side of the lower case 3.

The BDU structure adopts the mode of upper and lower casing equipment, and is integrated inside the BDU with the electrical part, has reduced the installation space of electrical part, has reduced installation cost, has increased the reliability of product, has increased the security when the operation. Meanwhile, the BDU structure of the utility model is provided with an electrical appliance isolation plate in the middle of the high-voltage inlet and outlet ends and an output protective cover above the BDU structure, thereby realizing the safety protection of the high-voltage input and output ends and improving the electrical safety.

The upper shell 1 and the lower shell 3 are both made of PC materials, and the flame-retardant requirement is met.

Connect copper tablet 9 to be T2 red copper, avoid nickel plating and form the nickel coating at connecting copper tablet 9, thickness is 5 ~ 8 um.

The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the utility model and these modifications should also be considered as the protection scope of the utility model.

Claims

1. A BDU module for a passenger vehicle power battery system, characterized by: comprises an upper shell (1), a pre-charging relay (2), a lower shell (3), a main negative relay (4), an output protective cover (5), a main positive relay (6), a main loop fuse (8), a connecting copper plate (9) and a pre-charging resistor (10), wherein the upper shell (1) and the lower shell (3) are mutually buckled, the pre-charging relay (2), the main loop fuse (8), the connecting copper plate (9) and the pre-charging resistor (10) are arranged between the upper shell (1) and the lower shell (3), an electrical isolation plate (31) is arranged on the lower shell (3), the pre-charging relay (2) and the pre-charging resistor (10) are arranged on one side of the electrical isolation plate (31), the main loop fuse (8) is arranged on the other side of the electrical isolation plate (31), the pre-charging resistor (10) is connected with the pre-charging relay (2) to form a pre-charging loop, the main positive relay (6) and the main negative relay (4) are arranged on the outer side of the lower shell (3), main positive relay (6), main negative relay (4), major loop insurance (8) and connect copper tablet (9) and link to each other and form the charge-discharge circuit, be connected with the terminal on pre-charge relay (2), be equipped with output visor (5) on the terminal.

2. The BDU module for a passenger vehicle power battery system as claimed in claim 1, wherein: a Hall sensor (7) for collecting current is arranged on the outer side of the lower shell (3).

3. The BDU module for a passenger vehicle power battery system as claimed in claim 1, wherein: the upper shell (1) and the lower shell (3) are both made of PC materials.

4. The BDU module for a passenger vehicle power battery system as claimed in claim 1, wherein: connect copper tablet (9) for T2 red copper, avoid the nickel plating and form the nickel coating at connecting copper tablet (9), thickness is 5 ~ 8 um.