CN216085243U

CN216085243U - High integrated hybrid battery distribution BDU

Info

Publication number: CN216085243U
Application number: CN202121743059.1U
Authority: CN
Inventors: 郭士儒; 张景舒; 陈景元; 翟力学; 代建超
Original assignee: Tianjin Hongye Power Technology Co ltd
Current assignee: Tianjin Hongye Power Technology Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-03-18
Anticipated expiration: 2031-07-29

Abstract

The utility model discloses a highly-integrated hybrid electric battery distribution BDU, which comprises a BDU shell, wherein an electromagnetic protection upper end cover is arranged on the outer wall of the top of the BDU shell, a waterproof sealing gasket is arranged on the outer wall of the bottom of the electromagnetic protection upper end cover, fastening screws are arranged around the outer wall of the top of the electromagnetic protection upper end cover, a heat dissipation hole structure is further arranged on the BDU shell, a first mounting box and a second mounting box are arranged on one side of the outer wall of the top of the BDU shell, a high-voltage acquisition connector and a low-voltage control connector are respectively arranged in the first mounting box and the second mounting box, and a high-voltage connector and a low-voltage connector are respectively connected to the high-voltage acquisition connector and the low-voltage control connector. According to the highly integrated BDU, connection points of the BDU and the battery module in the power battery pack are reduced, the working reliability of the BDU is improved, the space utilization rate in the power battery pack is improved, and the assembly efficiency of the power battery pack is improved.

Description

High integrated hybrid battery distribution BDU

Technical Field

The utility model relates to the technical field of battery power distribution BDUs, in particular to a high-integration hybrid battery power distribution BDU.

Background

The BDU is a Battery Disconnect Unit and a Battery pack circuit-breaking Unit which are fully spliced, specially designed for the interior of a Battery pack and also one of high-voltage distribution boxes. The high-voltage components are electrically connected through the busbar and the wire harness, functions of charging and discharging control, high-voltage component electrifying control, circuit overload short circuit protection, high-voltage sampling, low-voltage control and the like are provided for a high-voltage system of the new energy automobile, and the operation of the high-voltage system is protected and monitored.

At present, components such as relays, fuses, shunts, sensors and the like in a battery pack are dispersedly distributed in a power battery pack, so that a BDU is complex to assemble and occupies more space inside the power battery pack; many devices in the BDU need to be connected with the battery module, the number of connection points is large, the risk that the BDU cannot work due to open circuit is increased, and after-sale feedback faults occur frequently; the problem of power battery pack installation and production standardization cannot be solved by the scattered installation of the components of the BDU, and most of the existing battery distribution BDUs cannot well meet the actual requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a high-integration hybrid battery distribution BDU.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a high integrated hybrid battery distribution BDU, includes the BDU casing, be equipped with the electromagnetic protection upper end cover on the top outer wall of BDU casing, be equipped with waterproof sealing pad on the bottom outer wall of electromagnetic protection upper end cover, all be equipped with fastening screw around the electromagnetic protection upper end cover top outer wall, still be equipped with the louvre structure on the BDU casing, one side of BDU casing top outer wall is equipped with first mounting box and second mounting box.

Furthermore, the inside of first mounting box and second mounting box is equipped with high pressure respectively and gathers connector and low pressure control connector, and is connected with high pressure connector and low pressure connector on high pressure gathers connector and the low pressure control connector respectively.

Furthermore, a pre-charging resistor and a shunt are respectively arranged on two sides inside the BDU shell.

Furthermore, a main positive relay is arranged on the inner wall of one side of the BDU shell, and a pre-charging relay is arranged on the outer wall of one side of the main positive relay.

Furthermore, a main negative relay is arranged on the inner wall of the other side of the BDU shell, and the shunt is arranged on one side of the main negative relay.

Furthermore, the heat dissipation hole structure

Through the BDU casing that sets up, be equipped with dustproof subassembly on the inner wall.

The utility model has the beneficial effects that: the highly integrated BDU reduces the connection points of the BDU and the battery module in the power battery pack, improves the working reliability of the BDU, improves the space utilization rate in the power battery pack, and also improves the assembly efficiency of the power battery pack, and the high-voltage connector and the low-voltage connector in the BDU shell are both arranged at convenient wiring positions, so that the investment cost of copper bars and wire harnesses is saved, and the BDU is economical and attractive; the BDU box body is a plastic box body, the integration of all components in the system is realized by an injection molding method, the BDU box body has the characteristics of simple assembly and high mass production, and the production efficiency of the battery distribution box is effectively improved; the device reduces the connection points of the BDU and the battery module in the power battery pack, improves the working reliability of the BDU, reduces the failure rate, improves the reliability and reduces the safety risk; the copper bar is replaced to the interior aluminium row of inlaying, and reduce cost pressure, the process steps who simplifies have simultaneously improved production efficiency, the standardization of the production of being convenient for, the device convenient to use satisfies the demand of trade.

Drawings

Fig. 1 is a schematic overall structure diagram of a highly integrated hybrid battery distribution BDU according to the present invention;

fig. 2 is a schematic diagram of an internal component distribution structure of a highly integrated hybrid battery distribution BDU according to the present invention;

fig. 3 is a top view of an electromagnetic shield upper end cap of a highly integrated hybrid battery distribution BDU in accordance with the present invention;

fig. 4 is a schematic diagram of an electrical device for a highly integrated hybrid battery distribution BDU according to the present invention.

In the figure: the system comprises a main positive relay 1, a main pre-charging relay 2, a main negative relay 3, a shunt 4, a high-voltage acquisition connector 5, a low-voltage control connector 6, a pre-charging resistor 7, a BDU shell 8, an electromagnetic protection upper end cover 9, a fastening screw 10, a first mounting box 11 and a second mounting box 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of this patent, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the referenced device or component must have a particular orientation, be constructed and operated in a particular orientation, and therefore are not to be considered limiting of the patent, and the terms "mounted", "disposed", "connected", "fixed", "screwed" and the like are to be construed broadly and may be fixedly connected, detachably connected, or integrally formed, for example; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate, or they may be connected internally or in an interactive relationship with each other, and unless otherwise specifically limited, the specific meaning of the above terms in this patent will be understood by those skilled in the art according to the specific circumstances.

Referring to fig. 1-4, a highly integrated hybrid battery distribution BDU, including BDU casing 8, be equipped with electromagnetic protection upper end cover 9 on the top outer wall of BDU casing 8, be equipped with waterproof sealing gasket on the bottom outer wall of electromagnetic protection upper end cover 9, all be equipped with fastening screw 10 around the electromagnetic protection upper end cover 9 top outer wall, still be equipped with the louvre structure on the BDU casing 8, one side of BDU casing 8 top outer wall is equipped with first mounting box 11 and second mounting box 12, reduce BDU's installation space, improve space utilization, reduce the battery volume, waterproof sealing gasket is last to be equipped with a plurality of mounting holes at the interval, the bottom level of BDU casing 8 outwards extends has a plurality of connecting plates that are used for connecting the battery box of power battery package, the electromagnetic protection upper end cover 9 of casing can partially cover circuit and the electrical part in the BDU.

In the utility model, a high-voltage acquisition connector 5 and a low-voltage control connector 6 are respectively arranged in a first mounting box 11 and a second mounting box 12, and the high-voltage acquisition connector 5 and the low-voltage control connector 6 are respectively connected with a high-voltage connector and a low-voltage connector.

According to the BDU integrated system, the pre-charging resistor 7 and the current divider 4 are respectively arranged on two sides inside the BDU shell 8, and the copper bars are replaced by the embedded aluminum bars inside the BDU shell 8, so that the assembly cost of the BDU integrated system is reduced, and the product weight of the BDU integrated system is reduced.

According to the BDU integrated system, the main positive relay 1 is arranged on the inner wall of one side of the BDU shell 8, the pre-charging relay 2 is arranged on the outer wall of one side of the main positive relay 1, the BDU integrated system is stable in electrical performance, signals are correspondingly rapid, and the product reliability is excellent.

In the utility model, the inner wall of the other side of the BDU shell 8 is provided with a main negative relay 3, and the shunt 4 is arranged on one side of the main negative relay 3.

In the utility model, the inner wall of the heat dissipation hole structure is provided with the dustproof component.

The working principle is as follows: when in use, the high-voltage connector and the low-voltage connector in the BDU shell 8 are both arranged at convenient wiring positions, the battery terminal connecting plug-in unit comprises a positive and negative plug-in unit and a battery low-voltage control plug-in unit 6, the battery low-voltage plug-in unit and the positive and negative plug-in unit are arranged on the BDU shell 8, the battery terminal connecting plug-in units are both positioned on the side surface of the highly integrated BDU, the sockets of the battery end connecting plug-in units face the same side of the shell, the highly integrated BDU also comprises a waterproof sealing gasket surrounding the peripheries of the high-voltage connector and the low-voltage connector, a plurality of mounting holes are arranged on the waterproof sealing gasket at intervals, a plurality of connecting plates used for connecting a battery box of a power battery pack extend outwards horizontally at the bottom of the BDU shell 8, an electromagnetic protection upper end cover 9 of the shell can partially cover circuits and electric devices in the BDU, meanwhile, the BDU box body 8 is a plastic box body, and the integration of all components in the system is realized through an injection molding method.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a high integrated hybrid battery distribution BDU, includes BDU casing (8), its characterized in that, be equipped with electromagnetic protection upper end cover (9) on the top outer wall of BDU casing (8), be equipped with waterproof gasket on the bottom outer wall of electromagnetic protection upper end cover (9), all be equipped with fastening screw (10) around electromagnetic protection upper end cover (9) top outer wall, still be equipped with the louvre structure on BDU casing (8), one side of BDU casing (8) top outer wall is equipped with first mounting box (11) and second mounting box (12).

2. The BDU of claim 1, wherein the first mounting box (11) and the second mounting box (12) are internally provided with a high voltage acquisition connector (5) and a low voltage control connector (6), and the high voltage acquisition connector (5) and the low voltage control connector (6) are respectively connected with a high voltage connector and a low voltage connector.

3. The BDU according to claim 1, wherein a pre-charge resistor (7) and a shunt (4) are provided on each side of the inside of the BDU housing (8).

4. A highly integrated hybrid battery distribution BDU according to claim 3, wherein, a main positive relay (1) is arranged on the inner wall of one side of the BDU shell (8), and a pre-charging relay (2) is arranged on the outer wall of one side of the main positive relay (1).

5. A highly integrated hybrid battery distribution BDU according to claim 4, characterized in that the other side of the BDU casing (8) is provided with a main negative relay (3) on the inner wall, and the shunt (4) is arranged on one side of the main negative relay (3).

6. The BDU of claim 1, wherein the inner wall of the heat dissipation hole structure is provided with a dustproof component.