Description:FIELD OF THE INVENTION
The embodiments of the present disclosure relate generally to a battery management system and particularly to provide an efficient connection system between the battery pack and the BMS board.

BACKGROUND OF THE INVENTION
The electric vehicles industry is now steadily growing and as a result, interest in lithium-ion batteries too. An electric vehicle requires a significant quantity of power to run, thus needing large number of battery cells. Depending on the kind of electric vehicle, the battery's composition may vary significantly, but in general, electric vehicles batteries are assembled into units called cells, modules, and battery packs. A module is made up of a group of cells, while a battery pack is made up of a collection of modules and the assembled battery packs are installed on electric vehicles. For the battery packs to work at its best in a confined space within an electric vehicle, a cell serving as the foundation of a battery pack must have a high capacity per unit volume and a significantly longer lifespan. A module that includes numerous cells are arranged in a frame to better shield them from damaging external factors like heat or vibration.

The battery pack includes several modules that are connected to a Battery Management System (BMS) and a cooling system which regulate and control the battery pack's temperature, voltage, and other factors. The battery pack is an assemblage of battery cells electrically ordered in a configuration to assure delivery of a desired range of voltage and current for a certain amount of time to permit projected load situations. BMS is a technology designed to monitor battery packs of an electric vehicle and contains tools for measuring voltage, temperature, voltage limit, and current limit. However, to protect these cells, safe connection is necessary between the cell stack in the battery pack and the BMS board.

PROBLEM TO BE SOLVED BY INVENTION
The battery pack is connected to the BMS board through the soldering process. During such a process, the hardware components on the BMS board could short-circuit and lead to overheating of battery cells or fire. Hence, it is a primary objective of the current invention to avoid such a damaging soldering process and provide an efficient connection system between the battery pack and the BMS board.

Generally, the soldering process is time consuming and to repair or replace the BMS board, it requires frequent soldering and desoldering which is challenging. This also increases the production time significantly. Thus, it is another objective of the current invention to reduce the production time and provide a faster and easier connection system.

Further, soldering and desoldering could damage the BMS board easily and requires frequent replacement of BMS boards. This increases the production cost and also increases the cost for the users to repair and replace the BMS boards. Thus, it is another objective of the current invention to avoid such an additional cost.

The above-mentioned shortcomings, disadvantages and problems are addressed herein, and which will be understood by reading and studying the following specification.

SUMMARY OF THE INVENTION
Various embodiments herein describe a system to safely connect a battery pack to a battery management system (BMS) board. According to an embodiment of the present invention, a system to safely connect a battery pack to a battery management system (BMS) board is disclosed. The system comprises of the following. A plurality of modules are present in the battery pack. A plurality of cable assemblies provide connection between the plurality of modules and the BMS board. A plurality of headers are fixedly attached on the BMS board which allows the cable assemblies to connect to the BMS board.

According to another embodiment of the present invention, a plurality of sockets are fixedly attached at one end of the plurality of cable assemblies. Each module in the battery pack is connected to the BMS board, where the predetermined socket of the module has a unidirectional connection only with the predetermined header of the module.

As per first embodiment of the current invention, each pair of the header and the socket have an unique pin count to prevent interchangeable connections.

As per second embodiment of the current invention, the plurality of cable assemblies have ceramic fiber insulation.

As per third embodiment of the current invention, each cable assembly for voltage sensing includes a plurality of conducting wires and the each conducting wire includes a fuse which disconnects when there is a fault on the BMS board.

As per fourth embodiment of the current invention, each cable assembly for temperature sensing includes the plurality of conducting wires.

The foregoing has outlined, in general, the various aspects of the invention and serves as an aid to better understanding the more complete detailed description which is to follow. In reference to such, there is to be a clear understanding that the present invention is not limited to the method or application of use described and illustrated herein. It is intended that any other advantages and objects of the present invention that become apparent or obvious from the detailed description or illustrations contained herein are within the scope of the present invention.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
The other objects, features and advantages will occur to those skilled-in-the-art from the following description of the preferred embodiments and the accompanying drawings in which:

Figure 1 is a schematic block diagram illustrating a connection of a battery pack to a battery management system (BMS) board, according to an embodiment of the present invention.

Figure 2 is a schematic diagram illustrating a socket having an unidirectional connection with a header, according to an embodiment of the present invention.

Further, those skilled-in-the-art will appreciate that elements in the figures are illustrated for simplicity and may not have necessarily been drawn to scale. Furthermore, in terms of the construction of the device, one or more components of the device may have been represented in the figures by conventional symbols, and the figures may show only those specific details that are pertinent to understanding the embodiments of the present invention so as not to obscure the figures with details that will be readily apparent to those skilled in the art having the benefit of the description herein.

DETAILED DESCRIPTION OF THE INVENTION
The present invention provides a system to safely connect a battery pack to a battery management system board. In the following detailed description of the embodiments of the invention, reference is made to the accompanying drawings that form a part hereof, and in which are shown by way of illustration specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled-in-the-art to practice the invention, and it is to be understood that other embodiments may be utilized and that changes may be made without departing from the scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims.

The specification may refer to “an”, “one” or “some” embodiment(s) in several locations. This does not necessarily imply that each such reference is to the same embodiment(s), or that the feature only applies to a single embodiment. Single features of different embodiments may also be combined to provide other embodiments.

As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless expressly stated otherwise. It will be further understood that the terms “includes”, “comprises”, “including” and/or “comprising” when used in this specification, specify the presence of stated features, integers, steps, operations, elements and/or components, but do not preclude the presence or addition of one or more other features integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term “and/or” includes any and all combinations and arrangements of one or more of the associated listed items.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Embodiments of the present invention will be described below in detail with reference to the accompanying figures.

According to Figure 1, a system to safely connect a battery pack (101) to a battery management system (BMS) board (102) is disclosed. The system comprises of the following. A plurality of modules (103) are present in the battery pack (101). A plurality of cable assemblies (104) provide connection between the plurality of modules (103) and the BMS board (102). A plurality of headers (105) are fixedly attached on the BMS board (102) which allows the cable assemblies (104) to connect to the BMS board (102).

According to Figure 2, a plurality of sockets (106) are fixedly attached at one end of the plurality of cable assemblies (104). Each module (103) in the battery pack (101) is connected to the BMS board (102), where the predetermined socket (106) of the module (103) has a unidirectional connection only with the predetermined header (105) of the module (103).

As per first embodiment of the current invention, each pair of the header and the socket have an unique pin count to prevent interchangeable connections.

As per second embodiment of the current invention, the plurality of cable assemblies (104) have ceramic fiber insulation.

As per third embodiment of the current invention, each cable assembly (104) for voltage sensing includes a plurality of conducting wires (107) and the each conducting wire (107) includes a fuse (108) which disconnects when there is a fault on the BMS board (102).

As per fourth embodiment of the current invention, each cable assembly (104) for temperature sensing includes the plurality of conducting wires (107).

FURTHER ADVANTAGES OF THE INVENTION
The current invention provides an efficient connection system between the battery pack and the BMS board. Also, the current invention reduces the production time and provides a faster and easier connection system. Further, the current invention avoids an additional cost involved in frequently replacing the BMS boards.

Although the embodiments herein are described with various specific embodiments, it will be obvious for a person skilled in the art to practice the invention with modifications. However, all such modifications are deemed to be within the scope of the claims. It is also to be understood that the following claims are intended to cover all the generic and specific features of the embodiments described herein and all the statements of the scope of the embodiments which as a matter of language might be said to fall there between.

REFERENCE TABLE

S. No. Name Numbering
1. a battery pack 101
2. a battery management system (BMS) board 102
3. a plurality of modules 103
4. a plurality of cable assemblies 104
5. a plurality of headers 105
6. a plurality of sockets 106
7. a plurality of conducting wires 107
8. a fuse 108

, Claims:CLAIMS

We claim:

1. A system to safely connect a battery pack (101) to a battery management system (BMS) board (102), the system comprising of:
a plurality of modules (103) in the battery pack (101);
a plurality of cable assemblies (104) provide connection between the plurality of modules (103) and the BMS board (102);
a plurality of headers (105) are fixedly attached on the BMS board (102);
a plurality of sockets (106) are fixedly attached at one end of the plurality of cable assemblies (104),
characterized in that,
each module (103) in the battery pack (101) is connected to the BMS board (102), where the predetermined socket (106) of the module (103) has a unidirectional connection only with the predetermined header (105) of the module (103).

2. The system as claimed in claim 1, wherein each pair of the header (105) and the socket (106) have an unique pin count to prevent interchangeable connections.

3. The system as claimed in claim 1, wherein the plurality of cable assemblies (104) have ceramic fiber insulation.

4. The system as claimed in claim 1, wherein each cable assembly (104) for voltage sensing includes a plurality of conducting wires (107) and the each conducting wire (107) includes a fuse (108) which disconnects when there is a fault on the BMS board (102).

5. The system as claimed in claim 1, wherein each cable assembly (104) for temperature sensing includes the plurality of conducting wires (107).