BUSBAR WITH MOTHERPLATE

Abstract

Facility (300), comprising: a busbar (305) comprising a rider region (320) defining one or more openings (415); and a mother plate (310) configured to be coupled to the rider region (320) of the bus bar (305), wherein one or more openings in the mother plate (310) are aligned with the one or more openings (515) of the rider region (320), wherein the mother plate (310) has a planar shape and at least a portion of a surface of the mother plate (310) is coupled to a planar surface of the rider region (320) of the bus bar (305), characterized in that the busbar (305) includes at least one connector (325) configured to couple the busbar (305) to a battery module (115).

Description

INTRODUCTION

[0001] Batteries can be a source of electrical power. Various components or devices can be used to connect batteries and transfer power between batteries.

[0002] Document CN 2 04 316 311 U is known from the prior art. It relates to a power system structure. The power system structure comprises power modules and structures connected to a system. A positive DC busbar, negative DC busbars, and main bus copper bars located above the power module are connected via switching copper bars, switching copper bar mother plates, and the module's compact DC bus feed-through terminals. AC copper bars at the rear lower positions of the power modules are directly connected to the system's AC copper bars. Bus capacitors are attached to a module mounting bracket and a water cooling plate by a bus capacitance mounting plate, a bus capacitance clamp plate, and capacitance clamp-through bars.The positive DC busbar and the negative DC busbars are each led out through two terminals and are respectively connected to the main bus copper bars, and the lead-out terminals are oriented upwards. SUMMARY

[0003] The object of the present invention is to provide a busbar assembly with improved mechanical properties.

[0004] The object is achieved by a device according to claim 1, a battery module assembly according to claim 9, or a method according to claim 18.

[0005] Preferred embodiments of the present invention are defined by the dependent claims.

[0006] This technology aims to design a busbar assembly to, for example, resist forces acting on the busbar assembly and maintain alignment between a busbar and a nut plate of the busbar assembly. A bond between a tab region of the busbar and the nut plate can reduce the likelihood that an opening of the tab region will not align with an opening of the nut plate and reduce the extent of misalignment should it occur. The bond can be permanent or irreversible. For example, the nut plate can be riveted to the tab region of the busbar so that little or no movement occurs between the nut plate and the tab region when an external force is applied to the busbar assembly. The riveted bond can align the opening of the nut plate with the opening of the tab region.

[0007] At least one aspect is directed to a device. The device may include a busbar and a mother plate. The busbar may include a rider region. The rider region may define one or more openings. The mother plate may be configured to couple to the rider region of the busbar. One or more openings in the mother plate may be aligned with the one or more openings of the rider region. The mother plate may have a flat shape. At least a portion of a surface of the mother plate may be coupled to a planar surface of the rider region of the busbar.

[0008] At least one aspect is directed to a battery module assembly. The battery module assembly may include a module, a bus bar, and a mother board. The bus bar may be configured for coupling to the module. The bus bar may have a tab region. The tab region may define one or more openings. The mother board may be configured to couple to the tab region of the bus bar. One or more openings in the mother board may be aligned with the one or more openings of the tab region. At least a portion of a surface of the mother board may be coupled to a surface of the tab region of the bus bar.

[0009] At least one aspect relates to a method. The method may include aligning one or more openings of a mother plate with one or more openings of a bus bar. The one or more openings of the bus bar may be located in a rider region of the bus bar. The method may include connecting the mother plate to the rider region of the bus bar. At least a portion of a surface of the mother plate may be configured to be flush with a surface of the rider region of the bus bar.

[0010] At least one aspect is directed to an electric vehicle. The electric vehicle may include a busbar assembly. The busbar assembly may include a busbar and a mother plate. The busbar may have a tab region. The tab region may define at least one opening to secure a connection between the busbar and an external element. The mother plate may be coupled to the tab region. An opening in the mother plate may be aligned with the at least one opening of the tab region. The mother plate may have a flat shape. A surface of the mother plate may be flush with a surface of the tab region of the busbar.

[0011] At least one aspect relates to a method. The method may include providing a busbar assembly. The busbar assembly may include a busbar and a mother plate. The busbar may have a tab region. The tab region may define an opening to secure a connection between the busbar and an external member. The mother plate may be coupled to the tab region of the busbar. An opening in the mother plate may be aligned with the opening of the tab region. The mother plate may have a flat shape. A surface of the mother plate may be configured to be flush with a surface of the tab region of the busbar.

[0012] At least one aspect relates to a method. The method may include assembling a busbar assembly. The method may include aligning at least one opening of a mother plate with at least one opening of a busbar. The one opening of the busbar may be disposed on a rider region of the busbar. The at least one opening of the busbar may ensure a connection between the busbar and an external element. The method may include connecting the mother plate to the rider region of the busbar. The mother plate may have a flat shape. A surface of the mother plate may be flush with a surface of the rider region of the busbar. The method may include coupling the busbar assembly to at least one submodule.

[0013] These and other aspects and implementations are explained in detail below. The foregoing information and the following detailed description include illustrative examples of various aspects and implementations and provide an overview or framework for understanding the nature and character of the claimed aspects and implementations. The drawings provide illustration and further understanding of the various aspects and implementations and are incorporated in and constitute a part of this specification. The foregoing information and the following detailed description and drawings include illustrative examples and should not be considered limiting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The attached drawings are not drawn to scale. Identical reference numbers and designations in the various drawings indicate identical elements. For clarity, not every component needs to be labeled in every drawing. In the drawings: Fig. Figure 1 shows an example of an electric vehicle that meets some of the criteria. Fig. 2A shows an example of a battery pack according to some aspects. Fig. Figure 2B shows an example of a battery module according to some aspects. Fig. 3 shows an example of a busbar assembly according to some aspects. Fig. 4 shows an exemplary rider region of a busbar assembly according to some aspects. Fig. 5 shows an example of a mother board of a busbar assembly according to some aspects. Fig. Figure 6 shows an example of a busbar assembly with an external element according to some aspects. Fig. 7 shows an exemplary battery module assembly according to some aspects. Fig. 8 shows an example of a battery module assembly according to some aspects. Fig. 9 is a flowchart illustrating an exemplary method for assembling a bus bar assembly according to some aspects. Fig. 10 is a flowchart illustrating an example method for providing a bus bar assembly according to some aspects. Fig. 11 shows a flowchart illustrating an example method for assembling a battery module assembly according to some aspects. DETAILED DESCRIPTION

[0015] Below are more detailed descriptions of various concepts and implementations of methods, devices, and systems that incorporate a busbar with an integrated mother board. The various concepts presented above and explained in detail below can be implemented in numerous ways.

[0016] The present disclosure generally relates to a busbar with an integrated nutplate. A busbar and nutplate combination can be subjected to forces and torques during assembly and installation that can cause misalignment of the holes in the busbar and nutplate. For example, misalignment between these two parts can create high electrical resistance, which generates heat, reduces the current-carrying capacity of the assembly, or results in an incorrect torque reading during system assembly.

[0017] To prevent or mitigate the effects of forces and torques acting on the busbar and nutplate, this engineering solution can create a secure connection between the busbar and nutplate, effectively reducing the likelihood of misalignment and the extent of misalignment if it occurs. The busbar coupled to the nutplate may include a connecting mechanism (e.g., rivets) capable of resisting the effects of forces acting on the busbar or nutplate. The type of connecting mechanism, the position of the connecting mechanism, the number of connecting mechanisms, etc., can all affect the assembly's ability to withstand the applied forces and torques.

[0018] Fig. 1 illustrates an exemplary cross-sectional view 100 of an electric vehicle 105 equipped with at least one battery pack 110. Electric vehicles 105 may include, but are not limited to, electric trucks, electric sport utility vehicles (SUVs), electric delivery vans, electric automobiles, electric cars, electric motorcycles, electric scooters, electric passenger vehicles, electric passenger or commercial vehicles, hybrid vehicles, or other vehicles such as marine or air transport vehicles, airplanes, helicopters, submarines, boats, or drones. The battery pack 110 may also be used as an energy storage system to power a building, such as a residence or commercial building. Electric vehicles 105 may be fully electric or partially electric (e.g., plug-in hybrid), and further, electric vehicles 105 may be fully autonomous, partially autonomous, or unmanned. Electric vehicles 105 may also be human-operated or non-autonomous.Electric vehicles 105, such as electric trucks or automobiles, may include on-board battery packs 110, battery modules 115, or battery cells 120 to power the electric vehicles. The electric vehicle 105 may include a chassis 125 (e.g., a frame, an internal frame, or a support structure). The chassis 125 may support various components of the electric vehicle 105. The chassis 125 may extend across a front portion 130 (e.g., a hood portion), a body portion 135, and a rear portion 140 (e.g., a trunk, payload, or trunk portion) of the electric vehicle 105. The battery pack 110 may be installed or placed within the electric vehicle 105. For example, the battery pack 110 may be installed on the chassis 125 of the electric vehicle 105 within the front section 130, the body section 135, or the rear section 140.The battery pack 110 may include or be connected to at least one bus bar, e.g., a current collector element. For example, the first bus bar 145 and the second bus bar 150 may include electrically conductive material to connect or otherwise electrically couple the battery modules 115 or the battery cells 120 to other electrical components of the electric vehicle 105 to supply electrical power to various systems or components of the electric vehicle 105.

[0019] Fig. 2A illustrates an exemplary battery pack 110. Referring to Fig. 2A, the battery pack 110 may, among other things, provide power to the electric vehicle 105. Battery packs 110 may include any arrangement or network of electrical, electronic, mechanical, or electromechanical devices to power a vehicle of any type, such as the electric vehicle 105. The battery pack 110 may include at least one enclosure 205. The enclosure 205 may include at least one battery module 115 or at least one battery cell 120, as well as other components of the battery pack. The enclosure 205 may include a shield on the bottom of the battery module 115 to protect the battery module 115 from external influences, such as when the electric vehicle 105 is driven over rough terrain (e.g., off-road, ditches, rocks, etc.).The battery pack 110 may include at least one cooling conduit 210 that may distribute fluid throughout the battery pack 110 as part of a heat / temperature control or heat exchange system, which may also include at least one cold plate 215. The cold plate 215 may be positioned relative to an upper submodule and a lower submodule, such that it is located between the upper and lower submodules, among other things. The battery pack 110 may include any number of cold plates 215. For example, there may be one or more cold plates 215 per battery pack 110 or per battery module 115. At least one cooling conduit 210 may be coupled to, part of, or independent of the cold plate 215.

[0020] Fig. 2B illustrates example battery modules 115. The battery module 115 may include at least one submodule. The battery modules 115 may, for example, include at least one upper submodule 220 or at least one lower submodule 225. At least one cold plate 215 may be disposed between the upper submodule 220 and the lower submodule 225. For example, a cold plate 215 may be configured for heat exchange with a battery module 115. The cold plate 215 may be disposed between the upper submodule 220 and the lower submodule 225 or may be thermally coupled. A cold plate 215 may also be thermally coupled to more than one battery module 115 (or more than two submodules 220, 225). The battery submodules 220, 225 may together form a battery module 115. In some examples, each submodule 220, 225 may be considered a complete battery module 115 and not a submodule.

[0021] The battery modules 115 may each include a plurality of battery cells 120. The battery modules 115 may be disposed within the housing 205 of the battery pack 110. The battery modules 115 may include battery cells 120 that are, for example, cylindrical cells or prismatic cells. The battery module 115 may operate as a modular unit of battery cells 120. For example, a battery module 115 may collect current or electrical power from the battery cells 120 contained within the battery module 115 and provide the current or electrical power as the output of the battery pack 110. The battery pack 110 may include any number of battery modules 115. For example, the battery pack may have one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, or any other number of battery modules 115 disposed within the housing 205.It should also be noted that each battery module 115 may include an upper sub-module 220 and a lower sub-module 225, possibly with a cold plate 215 between the upper sub-module 220 and the lower sub-module 225. The battery pack 110 may include or define a plurality of areas in which the battery module 115 may be positioned. The battery modules 115 may be square, rectangular, round, triangular, symmetrical, or asymmetrical. In some examples, the battery modules 115 may have different shapes, such that some battery modules 115 are rectangular and other battery modules 115 are square, among other possibilities. The battery module 115 may include or define a plurality of slots, holders, or containers for a plurality of battery cells 120.

[0022] Fig. 3 shows an example of a bus bar assembly 300. The bus bar assembly 300 may include at least one bus bar 305 and at least one mother board 310. The bus bar 305 may be configured to transfer current between the components of a battery pack. For example, the bus bar 305 may be made of a conductive material so that current can flow from a first battery module to a second battery module through the bus bar 305. The bus bar 305 may transfer current between a first battery cell and a second battery cell. The bus bar 305 may include at least one body 315, at least one tab region 320, and at least one connector 325. The body 315 may be made at least partially of a material capable of carrying current. The body 315 may be made of, for example, copper, brass, aluminum, and other materials.The busbar 305 can be made of the same material throughout or can include multiple materials. For example, the body 315 can be made of a first material, the rider region 320 can be made of a second material, and the connector 325 can be made of a third material. In some examples, each component can be made of different materials. For example, a first portion of the body 315 can be made of a conductive material and a second portion can be made of a non-conductive material. The body 315 can be made of any material that maintains a rigid shape. The body 315 can have any shape. For example, the body 315 can be a flat strip, a solid bar, a rod, a hollow tube, etc. Fig. 3 shows two different busbars 305 with different body shapes. A body 315 of a first busbar 305 may have a predominantly flat shape with a first geometry, and a body 315 of a second busbar 305 may have a predominantly flat shape with a second geometry. The body 315 may comprise a predominantly planar shape. In some examples, the body 315 may have a bump, curve, turn, bulge, crater, etc., that extends into another plane. In some examples, the body 315 may have a bump, curve, turn, bulge, crater, etc., that extends into another plane. As shown in Fig. 1, the busbar 305 may be the same or different from the busbars 145, 150.

[0023] The connector 325 can be configured to couple the bus bar 305 to a battery module. For example, the connector 325 can be configured to snap onto, grip, lock onto, etc., the battery module so that the bus bar 305 is coupled to the battery module. The connector 325 can also be configured to receive power from the battery module to be transferred via the bus bar 305 or to supply power to the battery module that has been transferred via the bus bar 305. Other coupling mechanisms can also be used to couple the bus bar 305 to the battery module.

[0024] The connector 325 may be disposed on at least one side of the bus bar 305. For example, the connector 325 may extend from an edge of the body 315 in a direction that is perpendicular or substantially perpendicular (e.g., + / -10°) to the body 315. In some examples, the bus bar 305 may include a plurality of connectors 325. The plurality of connectors 325 may extend from an edge of the bus bar 305. For example, the connectors 325 extend from a bottom edge of the bus bar 305. In some examples, the plurality of connectors 325 may extend from a plurality of edges of the bus bar 305. For example, a first subset of the plurality of connectors 325 may extend from a first edge of the bus bar 305 and a second subset of the plurality of connectors 325 may extend from a second edge of the bus bar 305.The plurality of connectors 325 may all extend in the same direction or in different directions. For example, a first subset of the plurality of connectors 325 may extend in a first direction, and a second subset of the plurality of connectors 325 may extend in a second direction.

[0025] Fig. 4 shows an example of a rider region 320. The rider region 320 of the bus bar 305 can be configured to couple to the mother plate 310 of the bus bar assembly 300. For example, the rider region 320 can include a front surface 405 and a back surface 410. The front surface 405 can have a flat surface. For example, the front surface 405 can be a planar surface. For example, the front surface 405 can be arranged in a single plane. For example, the front surface 405 can not include any discontinuities (e.g., bumps, bends, curves, etc.). A surface of the mother plate 310 can form an interface with the front surface 405 of the rider region 320. The back surface 410 can have a flat surface.For example, the front side 405 and the back side 410 may have different shapes, or the surface of the mother plate 310 may have a mirrored shape so that the surface of the mother plate 310 can be coupled to a non-planar surface of the rider region 320. In some examples, the front side 405 may include a fixation feature that aligns with a fixation feature of the mother plate 310 to ensure proper alignment of the rider region 320 with the mother plate 310.

[0026] The tab region 320 may extend from an edge of the body 315 of the bus bar 305. For example, the tab region 320 may extend substantially perpendicularly from the body 315. For example, the tab region 320 may extend ninety degrees from the body 315, plus or minus ten degrees. The tab region 320 may extend at other angles from the body 315. For example, the tab region 320 may be coplanar with the body 315, or the tab region 320 may extend at any angle from the body 315. A size of the tab region 320 or a shape of the tab region 320 may be oriented toward the mother plate 310. For example, the tab region 320 may be configured to be at least the size of the mother plate 310 such that an entire area of ​​the mother plate interfaces with the tab region 320. For example, the front side 405 of the tab region 320 may have the same or substantially (e.g.,+ / -10%) have the same size as a surface of the mother plate 310, so that the front side 405 can form an interface with the entire surface of the mother plate 310. For example, at least a portion of the perimeter of the rider region 320 can be aligned with a portion of the perimeter of the mother plate 310. For example, as shown in FIG. Fig. 4, among other things, three edges of the tab region 320 may be aligned with three edges of the mother board 310. The front side 405 may be configured to interface with only a portion of the surface of the mother board 310. For example, the front side 405 may be smaller than the surface of the mother board 310 and configured to interface with only a portion of the mother board 310.

[0027] The rider region 320 may define at least one opening 415. The opening 415 may extend from the front side 405 to the back side 410. The opening 415 may be configured to receive a fastener for securing an external element to the busbar assembly 300. For example, the opening 415 may receive a bolt used to couple a busbar to the busbar 305. The opening 415 may also be configured to receive a locking pin of an insulating cover. The bridge busbar and the insulating cover are described below, among other things, with reference to Fig. 6 and Fig. 7. The tab region 320 may define a plurality of openings 415. The plurality of openings 415 may all have the same size and shape and perform the same function. For example, the tab region 320 may include a first opening 415 for receiving a bolt and a second opening for receiving another bolt. The plurality of openings 415 may have a variety of shapes, sizes, functions, etc. For example, a first opening 415 may be configured to receive a bolt and a second opening 415 may be configured to receive a locking pin.

[0028] The opening 415 may be centrally located on the tab region 320. The opening 415 may, for example, be located along a longitudinal centerline 420 and a lateral centerline 425 of the tab region 320. For example, the center of the opening 415 may pass through the longitudinal centerline 420 and the lateral centerline 425. The opening 415 may be offset from at least one of the centerlines 420, 425. For example, the opening 415 may be centered with respect to the longitudinal centerline 420 and offset with respect to the lateral centerline 425. In some examples, the opening 415 may be offset from both centerlines 420, 425. With a plurality of openings 415, the plurality of openings 415 may be arranged in any pattern. For example, the plurality of openings 415 may be arranged in a straight line, staggered in a uniform pattern, or randomly arranged within the tab region 320.For example, the tab region 320 may include a first opening 415, a second opening 415, and a third opening 415. The first, second, and third openings 415 may be centered along the longitudinal centerline 420, with the first opening 415 centered along the lateral centerline 425, and the second and third openings 415 equidistant from the lateral centerline 425 but on opposite sides. The first, second, and third openings 415 may be centered along the longitudinal centerline 420, with the first opening 415 offset from the lateral centerline 425 in a first direction, and the second and third openings 415 offset from the lateral centerline 425 in a second direction.

[0029] The busbar assembly 300 may include at least one connection point 430 at which the nut plate 310 may be coupled to the rider region 320. The connection point 430 may be a location where the rider region 320 is coupled to the nut plate 310. The connection point 430 may be an irreversible or permanent connection. The connection point 430 may include, for example, a rivet. A nut plate 310 coupled to a rider region 320 via a rivet cannot be detached or removed without destroying the connecting element (e.g., the rivet) or a coupled component (e.g., the nut plate 310 or the rider region 320). Other fasteners may also be used to permanently couple the mother board 310 to the rider region 320, including, but not limited to, nails, adhesives, welds, solder, etc.For example, a nail may be a single-use fastener that maintains the connection. The busbar assembly 300 may include a plurality of connection points 430. For example, a first connection point 430 and a second connection point 430 may be used to couple the nut plate 310 to the tab region 320. The first and second connection points 430 may include the same type of fasteners or they may be different types of fasteners. For example, both the first and second connection points 430 may include rivets. The first connection point 430 may also include a rivet, and the second connection point 430 may include a nail.

[0030] The plurality of connection points 430 may be arranged on a single side of the tab region 320. For example, a first and a second connection point 430 may be on the same side of the lateral centerline 425. The first and second connection points 430 may, for example, be arranged near a lateral edge of the tab region 320. For example, the first and second connection points 430 may be closer to a lateral edge of the tab region 320 than to the lateral centerline 425. In such an example, the first and second connection points 430 may be arranged symmetrically about the longitudinal centerline 420. The first connection point 430 may, for example, be arranged on a first side of the longitudinal centerline 420 and at a certain distance from the longitudinal centerline 420.The second connection points 430 may be located on a second side of the longitudinal centerline 420 and at the same distance from the longitudinal centerline 420. The plurality of connection points 430 may be located on opposite sides of the tab region 320. For example, a first connection point 430 may be located on a first side of the lateral centerline 425 and a second connection point 430 may be located on a second side of the lateral centerline 425. The first connection point 430 may be located near a first edge of the tab region 320, and the second connection point 430 may be located near an opposite edge of the tab region 320. In such an example, the first and second connection points 430 may be located along the longitudinal centerline 420. The first and second connection points 430 may be located closer to the lateral centerline 425 than the edges of the tab region 320.The plurality of connection points 430 may be arranged asymmetrically along the rider region 320.

[0031] Fig. 5 shows an example of a mother board 310. The mother board 310 may have a front side 505 and a back side 510. The mother board 310 may have a flat shape. For example, the mother board 310 may have a flat shape. The mother board 310 may not include any bends, curves, etc. For example, the front side 505 may have a flat surface such that the front side 505 lies in a single plane. The mother board 310 may be arranged in a single plane. The mother board 310 may have a substantially rectangular shape. For example, the mother board 310 may have a first set of opposite sides having a first length and a second set of opposite sides having a second length. The sides of each set of opposite sides may be parallel.

[0032] The nut plate 310 may include at least one opening 515. The opening 515 may extend from the front side 505 to the back side 510. The opening 515 may be configured to receive a fastener for securing an external member to the bus bar assembly 300. For example, the opening 515 may be configured to receive a bolt that couples a bridge bus bar to the bus bar 305. The opening 515 may be configured to receive a locking pin of an insulating cover. The nut plate 310 may have a plurality of openings 515. The plurality of openings 515 may all have the same size and shape and perform the same function. For example, the nut plate 310 may include a first opening 515 for receiving one bolt and a second opening for receiving another bolt.The plurality of openings 515 may have a variety of shapes, sizes, functions, etc. For example, a first opening 515 may be configured to receive a bolt and a second opening 515 may be configured to receive a locking pin.

[0033] The nut plate 310 may include at least one protrusion 535. The protrusion 535 may be configured to receive a fastener. For example, an internal cavity 540 of the protrusion 535 may be threaded to receive a screw. The protrusion 535 may be an extension of the opening 515, with the internal cavity 540 aligned with the opening 515 such that the opening 515 may extend from a rear side 510 of the nut plate 310 through the protrusion 535.

[0034] At least one opening 515 of the mother plate 310 may be configured to align with at least one opening 415 of the tab region 320. The mother plate 310 may include a plurality of openings 515. The plurality of openings 515 may be configured to align with a plurality of openings 415 of the tab region 320. For example, the mother plate 310 may include a first opening 515 and a second opening 515. The first opening 515 may be configured to align with a first opening 415 of the tab region 320, and the second opening 515 may be configured to align with a second opening 415 of the tab region 320. A subset of the plurality of openings 515 of the mother plate 310 may be configured to align with the opening(s) 415 of the tab region 320.For example, the mother plate 310 may include a first opening 515 and a second opening 515. The first opening 515 may be configured to align with an opening 415 of the tab region 320, and the second opening 515 may be configured to be non-aligned with an opening of the tab region 320. The opening 515 of the mother plate 310 may be the same size as the opening 415 of the tab region 320. For example, a perimeter of the opening 515 may be aligned with a perimeter of the opening 415. For example, when aligned, there is no offset between the opening 415 and the opening 515, so that a smooth surface extends through the openings 415, 515 from a front side 505 of the mother plate to a back side 410 of the tab region 320.

[0035] Similar to the description of the tab region 320, the position of the opening 515 on the mother plate 310 can also vary. The opening 515 can be centrally located on the mother plate 310, for example. The opening 515 can be located along a longitudinal centerline 520 and a lateral centerline 525 of the mother plate 310, for example. For example, the center of the opening 515 can pass through the longitudinal centerline 520 and the lateral centerline 525. The opening 515 can be offset from at least one of the centerlines 520, 525. For example, the opening 515 can be centered with respect to the longitudinal centerline 520 and offset with respect to the lateral centerline 525. In some examples, the opening 515 can be offset from both centerlines 520, 525. With a plurality of openings 515, the plurality of openings 515 can be arranged in any pattern.The plurality of openings 515 may, for example, be arranged in a straight line, staggered in a uniform pattern, or randomly arranged on the mother plate 310. The arrangement of the plurality of openings 515 of the mother plate 310 may be based on the arrangement of a plurality of openings 415 of the tab region 320. The size, shape, and type of the openings 515 may also be based on the plurality of openings 415 of the tab region 320. The size, shape, type, and arrangement of the opening(s) 415 of the tab region 320 may be based on the size, shape, type, and arrangement of the opening(s) 515 of the mother plate 310.

[0036] The mother board 310 may be configured to couple to the rider region 320 of the busbar 305. For example, the mother board 310 may be coupled to the rider region 320 via at least one connection point 430. The connection point 430 may be a location where the mother board 310 is coupled to the rider region 320. The connection point 430 on the mother board 310 may be aligned with the connection point 430 in the rider region 320. As shown in Fig. 4, the connection point 430 may include a rivet. For example, the mother plate 310 may be coupled to the rider region 320 via at least one connection point 430. The at least one connection point 430 may be an irreversible or permanent connection (e.g., a rivet). For example, a mother plate 310 coupled to a rider region 320 via a rivet cannot be loosened or removed without destroying the fastener (e.g., the rivet) or a component coupled thereto (e.g., the mother plate 310 or the rider region 320). Other fasteners may also be used to permanently couple the mother plate 310 to the rider region 320, including, but not limited to, nails, adhesives, welds, solder, etc.

[0037] The busbar assembly may include a plurality of connection points 430. For example, the nut plate 310 may be irreversibly coupled to the rider region 320 of the busbar 305 via at least two connection points 430. For example, a first connection point 430 and a second connection point 430 may be used to couple the nut plate 310 to the rider region 320. The first and second connection points 430 may be the same type of fasteners or different types of fasteners. For example, both the first and second connection points 430 may be rivets. The first connection point 430 may be a rivet, and the second connection point 430 may be a nail. The first connection point 430 may be located on a first side of the longitudinal centerline 520 of the nut plate 310, and the second connection point 430 may be located on a second side of the longitudinal centerline 520 of the nut plate 310.The first connection point 430 and the second connection point 430 may be arranged at a distance from the longitudinal centerline 520. For example, the first and second connection points 430 may be arranged at the same distance from the longitudinal centerline 520. The first and second connection points 430 may be arranged at different distances from the longitudinal centerline 520. The first and second connection points 430 may be arranged on the same side of the mother plate 310. For example, the first and second connection points 430 may be arranged on a first side of the lateral centerline 525 of the mother plate 310. The first and second connection points 430 may be arranged at the same distance from the lateral centerline 525 or at different distances from the lateral centerline 525.In some examples, the first and second connection points 430 may be located closer to an edge of the mother board 310 than the lateral centerline 525. The first and second connection points 430 may be located closer to the lateral centerline 525 than the edge of the mother board 310.

[0038] The connection points 430 between the nut plate 310 and the rider region 320 can hold the nut plate 310 in a desired position relative to the rider region 320. For example, a permanent connection can ensure that an opening 415 of the rider region 320 remains aligned with an opening 515 of the nut plate 310. The connection points 430 can resist an external force applied to the bus bar assembly 300. For example, the connection points 430 can prevent misalignment between the opening 415 of the rider region 320 and the opening 515 of the nut plate 310. For example, if a fastener is inserted through the aligned openings 415, 515, the force (e.g., torque) applied to the fastener can cause the nut plate 310 and the rider region 320 to become misaligned.However, the connection points 430 resist the external force and keep the openings 415, 515 aligned. For example, the connection points 430 can align the openings 415, 515 within three millimeters of each other. A maximum offset of the openings 415, 515 can be three millimeters, for example, if the mother plate 310 and the rider region 320 are irreversibly coupled. This maximum offset can also be greater than three millimeters.

[0039] The size of the mother plate 310 may be oriented to the size of the rider region 320. For example, at least a portion of a perimeter of the mother plate 310 may be configured to align with a portion of a perimeter of the rider region 320. As described, among other things, in Fig. 5, three sides of the mother plate 310 may be aligned with three sides of the tab region 320. For example, a first side edge of the mother plate 310 may be aligned with a first side edge of the tab region 320, a second side edge of the mother plate 310 may be aligned with a second side edge of the tab region 320, and a longitudinal edge of the mother plate may be aligned with a longitudinal edge of the tab region 320. In some examples, fewer edges are aligned or more edges are aligned. The mother plate 310 may have a different shape or size than the rider region 320. For example, the mother plate 310 may be larger or smaller than the rider region 320 of the bus bar 305. For example, the mother plate 310 may be larger than the rider region 320 so that a portion of the back surface 510 of the mother plate 310 can be coupled to a flat surface (e.g., the front surface 405) of the rider region 320 of the bus bar 305.The back surface 510 may be flush with the flat surface of the tab region 320. For example, the back surface 510 of the mother board 310 may be flush with the flat surface of the tab region 320 when it contacts the surface of the flat tab region 320.

[0040] In one example, the back surface 510 of the mother plate 310 may interface with a front surface 405 of the rider region 320. For example, the front surface 405 of the rider region 320 may have a planar surface (e.g., a flat surface). The back surface 510 of the mother plate 310 may have a planar surface. The mother plate 310 may be coupled to the rider region 320 such that at least a portion of the back surface 510 of the mother plate 310 may interface with a portion of the front surface 405 of the rider region 320. In some examples, the entire back surface 510 of the mother plate 310 may interface with the front surface 405 of the rider region 320. A portion of a perimeter of the mother plate 310 may be aligned with a portion of a perimeter of the rider region 320 of the bus bar 305. For example, at least one edge of the mother board 310 may be aligned with an edge of the rider region 320.For example, a first side edge of the mother board 310 may be aligned with a first side edge of the tab region 320. In some examples, a plurality of edges of the mother board 310 may be aligned with a plurality of edges of the tab region 320. For example, a first and second side edge of the mother board 310 may be aligned with a first and second side edge of the tab region 320, and a longitudinal edge of the mother board 310 may be aligned with a longitudinal edge of the tab region 320. In some examples, the edges of the mother board 310 are not aligned with the edges of the tab region 320.

[0041] The mother plate 310 may be coupled to the rider region 320 via at least one connection point 430. The at least one connection point 430 may coincide with a connection point 430 of the rider region 320. In some examples, the mother plate 310 and the rider region 320 have a plurality of connection points 430 including a first connection point 430 and a second connection point 430. The first and second connection points 430 may be located on the same side of the lateral centerline 525. The first and second connection points 430 may be located closer to an edge of the mother plate 310 than to the lateral centerline 525. The first and second connection points 430 may be located the same distance from the longitudinal centerline 520.

[0042] The mother plate 310 may include a plurality of openings 515. The rider region 320 may include a plurality of corresponding openings 415. For example, the openings 515 of the mother plate 310 may be aligned with the openings 415 of the rider region. For example, the mother plate 310 may include a first opening 515, a second opening 515, and a third opening 515. The first and second openings 515 may be configured to receive a first fastener for securing a first external element to the bus bar assembly 300. The third opening 515 may be configured to receive a second fastener for securing a second external element to the bus bar assembly 300. The external elements may include a bridge bus bar, an insulation cover, etc.The rider region 320 may include a plurality of openings 415 aligned with the first, second, and third openings of the mother plate 310. For example, the first fastener may extend through the first opening of the mother plate 310 and a first opening 415 of the rider region 320.

[0043] Fig. 6 shows an example of a bus bar assembly 300 coupled to an external element. The external element may be a bridge bus bar 605. A bridge bus bar 605 may be configured for power transmission. For example, the bridge bus bar 605 may be configured to be coupled to multiple battery modules. The bridge bus bar 605 may transfer power between the multiple battery modules. The bridge bus bar 605 may include an end portion 610. The end portion 610 may be configured to couple to the bus bar assembly 300 via the tab region 320 and the mother plate 310. For example, the end portion 610 of the bridge bus bar 605 may include at least one opening 615 aligned with an opening 415 of the tab region 320 and an opening 515 of the mother plate 310.A flat surface of the end portion 610 may interface with a planar surface of the rider region 320. For example, the end portion 610 may interface with the back surface 410 of the rider region 320. A fastener 620 may be configured to extend through the aligned openings 415, 515, 615 to couple the bridge bus bar 605 to the bus bar assembly 300. For example, a bolt may extend through the openings 415, 515, 615 and fix the bridge bus bar 605 relative to the bus bar assembly 300. The fasteners 620 may be or include other types of fasteners, including, but not limited to, rivets, screws, or nails, for example.

[0044] The bridge bus bar 605 may include a plurality of end portions 610. For example, the bridge bus bar 605 may include a first end portion 610 and a second end portion 610. The first end portion 610 may be configured to couple to a first bus bar assembly 300 coupled to a first battery module, and the second end portion 610 may be configured to couple to a second bus bar assembly 300 coupled to a second battery module.

[0045] Fig. 7 shows an example of a battery module assembly 700. The battery module assembly 700 may include a bus bar assembly 300 and a battery module 115. The battery module 115 may include a plurality of submodules 705. For example, the battery module 115 may include a first submodule 705 and a second submodule 705. The first submodule 705 may be disposed above the second submodule 705. For example, the second submodule 705 may support the first submodule 705. In some examples, a cold plate 215 may be disposed between the first and second submodules 705 (as described, among other things, in Fig. 8). The bus bar assembly 300 may include at least one bus bar 305 and at least one mother plate 310. The bus bar 305 may include a tab region 320. The tab region 320 may define at least one opening 415. The bus bar 305 may be configured to couple to the battery module 115. For example, the bus bar 305 may include at least one connector 325. The connector 325 may be configured to connect the bus bar 305 to the battery module 115. The mother plate 310 may have at least one opening 515. The opening 515 of the mother plate 310 may be configured to align with the opening 415 of the tab region 320 of the bus bar 305. The mother board 310 can be configured to couple to the rider region 320 of the busbar 305.For example, the mother plate 310 may be coupled to the rider region 320 via the at least one connection point 430. The at least one connection point 430 may include an irreversible connection. The irreversible connection may include, for example, a rivet. The mother plate 310 may have a planar shape. The mother plate 310 may, for example, be flat. At least a portion of a surface of the mother plate 310 may be configured to be flush with a surface of the rider region 320. In some examples, the entire surface of the mother plate 310 may be configured to be flush with a surface of the rider region 320.

[0046] The mother plate 310 may be irreversibly coupled to the rider region 320 via at least two connection points 430. For example, the mother plate 310 may be irreversibly coupled to the rider region 320 via a first connection point 430 and a second connection point 430. In one example, the first and second connection points 430 may be arranged on a first side of the mother plate 310. For example, the first and second connection points 430 may be arranged on the same side of a lateral centerline 525 of the mother plate 310. The first and second connection points 430 may be irreversible connection points. The first and second connection points 430 may be, for example, a rivet, a weld, or a solder. The first and second connection points 430 may be arranged closer to an edge of the mother plate 310 than to the lateral centerline 525.The first connection point 430 may be located on a first side of a longitudinal centerline 520 of the mother plate 310, and the second connection point 430 may be located on a second side of the longitudinal centerline 520 of the mother plate 310. The first and second connection points 430 may be located the same distance from the longitudinal centerline 520. A portion of a perimeter of the mother plate 310 may be aligned with a portion of a perimeter of the rider region 320. For example, at least one edge of the mother plate 310 may be aligned with at least one edge of the rider region 320.

[0047] The bus bar assembly 300 may include a plurality of bus bars 305. For example, a first bus bar 305 and a second bus bar 305 may be coupled to the battery module 115. For example, the first bus bar 305 may be coupled to the first submodule 705 and the second bus bar 305 may be coupled to the second submodule. The bus bars 305 may have the same shape or different shapes. The bus bars 305 may be arranged on the same side of the battery module 115. For example, the first bus bar 305 and the second bus bar 305 may be arranged on a front side of the battery module 115. The first bus bar 305 and the second bus bar 305 may be arranged at least partially in the same vertical plane when coupled to the battery module 115.

[0048] The bus bar assembly 300 may include a plurality of mother plates 310. The bus bar assembly 300 may include, for example, a first mother plate 310 and a second mother plate 310. The first and second mother plates 310 may have a flat shape. For example, the first and second mother plates 310 may be arranged on a single plane (e.g., flat, planar). The first bus bar 305 may be coupled to the first mother plate 310 to form a first bus bar assembly 300, and the second bus bar 305 may be coupled to the second mother plate 310 to form a second bus bar assembly 300. The first bus bar assembly 300 may be coupled to the first submodule 705, and the second bus bar assembly 300 may be coupled to the second submodule 705.

[0049] The battery module 115 may be a first battery module 115 of a battery pack 110. The first bus bar 305 may be configured to electrically couple the first battery module 115 to a second battery module 115 of the battery pack 110. The second bus bar 305 may be configured to electrically couple the first battery module 115 to a third battery module 115 of the battery pack 110. The first bus bar 305 may be coupled, for example, to a bridge bus bar 605. A first bus bar assembly 300 may be coupled to a first battery module 115. A first end portion 610 of the bridge bus bar 605 may be coupled to the tab region 320 and the mother board 310 of the first bus bar assembly 300. For example, a fastener 620 may extend through the openings 415, 515, 615 of the rider region 320, the mother plate 310, orthe bridge busbar 605 to secure the bridge busbar 605 to the first busbar assembly 300. A second busbar assembly 300 can be coupled to a second battery module 115. A second end portion 610 of the bridge busbar 605 can be coupled to the tab region 320 and the nut plate 310 of the second busbar assembly 300. For example, a fastener 620 can extend through the openings 415, 515, 615 of the tab region 320, the nut plate 310, and the bridge busbar 605, respectively, to secure the bridge busbar 605 to the second busbar assembly 300.

[0050] The busbar assembly 300 can be configured to couple to other external elements, such as the cover 710. At least one fastener 620 can be disposed within the cover 710. The cover 710 can be configured to position the fastener 620 such that the fastener 620 is aligned with the openings 415, 515, 615 before entering the openings 415, 515, 615. The cover 710 can be coupled to the nut plate 310, the rider region 320, and the end portion 610 of the bridge busbar 605. For example, the cover 710 can snap into place with the nut plate 310, the rider region 320, and the end portion 610 of the bridge busbar 605. For example, the cover 710 may include a protrusion that extends through the aligned openings 415, 515, 615.The protrusion can serve as a positioning device to position the cover 710 in a suitable position and as a fastener to secure the cover 710 in place. When the cover 710 and the at least one fastener 602 are in the appropriate position, a tool can be used to move the at least one fastener 620 from a first position to a second position. The first position can lock the fastener 620 into the cover 710, and the second position can lock the fastener 620 in a secured position extending through the openings 415, 515, 615 and securing the bridge busbar 605 to the busbar assembly 300.

[0051] The coupling of the nut plate 310 to the rider region 320 for the bus bar 305 can resist the forces acting when the fastener 620 moves from the first position to the second position. For example, a torque can be applied to the fastener 620 to move the fastener 620 through the openings 415, 515, 615 and couple the bridge bus bar 605 to the bus bar assembly 300. The torque can be transferred to the nut plate 310 and the rider region 320, causing the openings 415, 515 to shift. However, the irreversible coupling at the connection points 430 of the rider region 320 and the nut plate 310 can prevent the nut plate 310 from moving relative to the rider region 320 and keeping the openings 415, 515 aligned.

[0052] Fig. 8 shows an example of a battery module assembly 700. As described above with reference to Fig. 2A, a battery pack 110 may include at least one cooling plate 215. As described, among other things, in Fig. 8, a battery module 115 may include a cold plate 215. A battery pack 110 having a plurality of battery modules 115 may include a plurality of cold plates 215. A battery pack 110 having multiple battery modules 115 may include a single cold plate 215 to provide thermal control for all battery modules 115. The cold plate 215 may be a thin piece of material disposed between a first submodule 705 and a second submodule 705 of the battery module 115. The battery module assembly 700 may include a first bus bar 305 coupled to a first submodule 705 and a second bus bar 305 coupled to a second submodule 705.

[0053] Fig. 9 shows a flowchart of an example of a method 900. The method 900 may be a method for assembling a bus bar assembly 300. The method 900 may include aligning an opening of a mother plate with an opening of a bus bar 905 and connecting the mother plate to a rider region of the bus bar 910. The act 905 of aligning an opening of the mother plate with an opening of the bus bar may include identifying an opening 415 of a bus bar 305. The opening 415 may be located in a rider region 320 of the bus bar 305. The act 905 may include identifying a corresponding opening 515 of a mother plate 310.Aligning the opening 415 of the rider region 320 of the busbar 305 with the corresponding opening 515 of the mother plate 310 may include adjusting a position of the mother plate 310 relative to the rider region 320 until a perimeter of the openings 415, 515 matches. For example, a shape and size of the opening 415 of the rider region 320 may have the same shape and size as the opening 515 of the mother plate 310. The openings 415, 515 may be aligned to create a smooth transition between the mother plate 310 and the rider region 320 within the openings 415, 515. For example, the smooth transition may not include any steps, offsets, or other misalignments where the opening 415 of the rider region 320 meets the opening 515 of the mother plate 310. A plurality of openings 415 of the rider region 320 may be aligned with a plurality of openings 515 of the mother board 310.

[0054] The process 910 of coupling a mother plate to a rider region of a busbar may include coupling the mother plate 310 to the rider region 320 of the busbar 305 such that the mother plate 310 cannot move relative to the rider region 320. Coupling the mother plate 310 to the rider region 320 may include coupling via at least one connection point 430. The connection point 430 may be an irreversible connection. The connection point 430 may include, for example, a rivet. The irreversible connection may be configured to secure a position of a cooling plate 215 relative to a first submodule 705 of a battery module 115 and a second submodule 705 of the battery module 115.

[0055] The mother plate 310 may have a planar shape. For example, the mother plate 310 may be arranged on a single plane. The mother plate 310 may have a flat surface. Coupling the mother plate 310 to the rider region 320 may include coupling the planar surface of the mother plate 310 to a planar surface of the rider region 320. At least a portion of the surface of the mother plate 310 may be flush with the planar surface of the rider region 320. In some examples, the entire surface of the mother plate 310 may be flush with the planar surface of the rider region 320.

[0056] Fig. 10 shows a flowchart of an example of a method 1000. The method 1000 may be a method for providing a bus bar assembly 300. The method 1000 may include providing a bus bar assembly 1005. The act 1005 of providing a bus bar assembly may include providing the bus bar assembly 300. Providing the bus bar assembly 300 may include providing at least one bus bar 305 coupled to at least one mother plate 310. The bus bar 305 may include a rider region 320. The rider region 320 may define an opening 415. The mother plate 310 may be coupled to a rider region 320 of the bus bar 305. The mother plate 310 may be coupled to the rider region 320 via at least one connection point 430. The at least one connection point 430 may include an irreversible connection.The at least one connection point 430 may include, for example, a rivet. The busbar assembly 300 may include at least one opening 415 of the tab region 320 that is aligned with at least one opening 515 of the nut plate 310. The nut plate 310 may have a planar shape. At least a portion of a surface of the nut plate 310 may interface with a surface of the tab region 320. For example, the portion of the surface of the nut plate 310 may be flush with the surface of the tab region 320. For example, the surface of the nut plate 310 may be level with or even the same as the surface of the tab region 320 when in contact with the surface of the tab region 320. In some examples, the entire surface of the nut plate 310 may interface with the surface of the tab region 320.The opening 415 of the rider region 320 can be configured to secure a connection between the busbar 305 and an external element. For example, the opening 415 of the rider region 320 can secure a connection between the busbar 305 and a bridge busbar 605, a cover 710, and other external elements.

[0057] Fig. 11 shows a flowchart of an example of a method 1100. The method 1100 may be a method for assembling a battery module assembly 700. The method 1100 may include assembling a bus bar assembly 1105 and coupling the bus bar assembly to a module 1110.

[0058] The process 1105 of assembling a busbar assembly may include aligning an opening 515 of a mother plate 310 with an opening 415 of a busbar 305 and coupling the mother plate to the busbar 305. The opening 415 of the busbar 305 may be disposed on a rider region 320 of the busbar 305. The opening 415 of the busbar 305 may be configured to ensure a connection between the busbar 305 and an external element. For example, the opening 415 of the rider region 320 may ensure a connection between the busbar 305 and a bridge busbar 605, a cover 710, and other external elements. The mother plate 310 may have a planar shape. A surface of the mother plate 310 may be configured to be flush with a surface of the rider region 320 of the busbar 305.

[0059] The process 1110 of coupling the bus bar assembly to a module may include coupling a bus bar assembly 300 to a battery module 115. For example, the bus bar assembly 300 may be coupled to the battery module 115 via at least one connector 325 of the bus bar 305. In some examples, the bus bar assembly 300 may be coupled to a submodule 705 of the battery module 115. For example, the bus bar assembly 300 may be coupled to a first submodule 705. In some examples, a plurality of bus bar assemblies 300 may be coupled to the battery module 115. For example, a first bus bar assembly 300 may be coupled to a first submodule 705 and a second bus bar assembly 300 may be coupled to a second submodule 705.

[0060] Some of the descriptions contained herein emphasize the structural independence of the aspects of the system components or the groupings of operations and responsibilities of these system components. Other groupings that perform similar overall operations are within the scope of the present application. The systems described above may provide multiple such components, and these components may be deployed either on a standalone system or on multiple instances in a distributed system.

[0061] However, the operations illustrated in the drawings in a particular order need not be performed in the order shown or sequentially, nor need all of the illustrated operations be performed. The acts described herein may be performed in different orders.

[0062] Having now described some illustrative implementations, it is evident that the foregoing is illustrative and not limiting, having been presented as an example. In particular, although many of the examples presented herein involve specific combinations of method acts or system elements, these acts and elements may be combined in other ways to achieve the same goals. Acts, elements, and features discussed in connection with one implementation are not intended to preclude a similar role in other implementations.

[0063] The phraseology and terminology used herein is for the purpose of description and should not be considered limiting. The use of "include," "comprising," "having," "containing," "include," "characterized by," "characterized in that," and variations thereof herein are intended to encompass the items listed below, their equivalents and additional items, as well as alternative implementations consisting solely of the items listed below. In one implementation, the systems and methods described herein consist of one, any combination of more than one, or all of the described elements, acts, or components.

[0064] Any references to implementations, elements, or acts of the systems and methods referred to herein in the singular may also include implementations including a plurality of such elements, and any references to an implementation, element, or act in the plural may also include implementations including only a single element. References in the singular or plural form are not intended to limit the presently disclosed systems or methods, their components, acts, or elements to any single or multiple configurations. References to an act or act element being based on information, an act, or an element may include implementations where the act or act element is based at least in part on information, an act, or an element.

[0065] Any implementation disclosed herein may be combined with any other implementation or embodiment, and references to "an implementation," "some implementations," "an implementation," or the like are not necessarily mutually exclusive and are intended to indicate that a particular feature, structure, or characteristic described in connection with the implementation may also be included in at least one implementation or embodiment. The terms used herein do not necessarily all refer to the same implementation. Any implementation may be combined with any other implementation, including, but not limited to, in any manner that does not conform to the aspects and implementations disclosed herein.

[0066] References to "or" may be interpreted as all-inclusive, so that any term used with "or" may specify a single, multiple, or all of the described terms. References to at least one term from a conjunctive list of terms may be construed as an inclusive OR to specify a single, multiple, or all of the described terms. For example, a reference to "at least one of" "A" and "B" may include only "A," only "B," or both "A" and "B." These references, used in conjunction with "comprise" or other open-ended terminology, may include additional elements.

[0067] Where technical features are identified by reference symbols in the drawings, the detailed description, or the claims, these reference symbols have been included to enhance the clarity of the drawings, the detailed description, and the claims. Accordingly, neither the reference symbols nor their absence have any limiting effect on the scope of the individual claim elements.

[0068] Modifications to the described elements and acts, such as variations in the sizes, dimensions, structures, shapes, and proportions of the various elements, parameter values, mounting arrangements, use of materials, colors, and orientations, may occur without materially affecting the teachings and advantages of the subject matter disclosed herein. For example, elements described as integral may be composed of multiple parts or elements, the position of the elements may be reversed or otherwise varied, and the type or number of individual elements or positions may be changed or varied. Other substitutions, modifications, changes, and omissions may also be made in the design, operating conditions, and arrangement of the disclosed elements and acts without departing from the scope of the present disclosure.

[0069] For example, the descriptions of positive and negative electrical properties may be reversed. Elements described as negative elements may instead be configured as positive elements, and elements described as positive elements may instead be configured as negative elements. For example, elements described as having a first polarity may instead have a second polarity, and elements described as having a second polarity may instead have a first polarity. Further, relatively parallel, perpendicular, vertical, or other positioning or orientation descriptions include variations within + / -10% or + / -10 degrees of pure vertical, parallel, or perpendicular positioning.References to "approximately," "substantially," or other degrees include variations of + / -10% from the specified measure, unit, or range, unless expressly stated otherwise. Coupled elements may be electrically, mechanically, or physically coupled to one another, directly or with intervening elements. The scope of the systems and methods described herein is thus indicated by the appended claims rather than by the foregoing description, and changes that come within the meaning and range of equivalence of the claims are embraced therein.

Claims

[1] Facility (300), comprising: a busbar (305) comprising a rider region (320) defining one or more openings (415); and a mother plate (310) configured to be coupled to the rider region (320) of the bus bar (305), wherein one or more openings in the mother plate (310) are aligned with the one or more openings (515) of the rider region (320), wherein the mother plate (310) has a planar shape and at least a portion of a surface of the mother plate (310) is coupled to a planar surface of the rider region (320) of the bus bar (305), characterized by that the busbar (305) includes at least one connector (325) configured to couple the busbar (305) to a battery module (115). [2] Device (300) according to claim 1, comprising: the surface of the mother plate (310) configured to be flush with the flat surface of the rider region (320); the nut plate (310) connected to the rider region (320) of the busbar via at least one connection point (430), wherein the at least one connection point (430) includes a rivet. [3] Device (300) according to claim 1, comprising: to irreversibly couple the mother plate (310) to the rider region (320) of the busbar (305) via at least two connection points (430), wherein a first connection point (430) is arranged on a first side of a center line (420, 425) of the mother plate (310) and a second connection point (430) is arranged on a second side of the center line (420, 425) of the mother plate (310), wherein the first connection point (430) and the second connection point (430) are arranged at a distance from the center line (420, 425). [4] Device (300) according to claim 1, comprising: the mother plate (310) coupled to the rider region (320) of the bus bar (305) by at least one connection point (430), wherein the at least one connection point (430) includes an irreversible connection, the irreversible connection configured to prevent misalignment between the one or more openings (515) in the mother plate (310) and the one or more openings (415) of the bus bar (305). [5] Device (300) according to claim 1, comprising: the mother plate (310) which is irreversibly coupled to the rider region (320) of the busbar (305) via at least two connection points (430), wherein the at least two connection points (430) are arranged on a first side of the mother plate (310). [6] Device (300) according to claim 1, comprising: the mother plate (310) which is irreversibly coupled to the rider region (320) of the busbar (305) via at least two connection points (430); a first connection point (430) of the at least two connection points (430) arranged on one side of a first center line (520, 525), and a second connection point (430) of the at least two connection points (430) arranged on the side of the first center line (520, 525), wherein the first and second connection points (430) are arranged at a first distance from the first center line (520, 525); and wherein the first connection point (430) is arranged on a first side of a second center line (520, 525) and the second connection point is arranged on (430) a second side of the second center line (520, 525), the first and second connection points (430) being arranged at a second distance from the second center line (520, 525). [7] Device (300) according to claim 1, comprising: a portion of a circumference of the rider region (320) of the busbar (305) aligned with a portion of a circumference of the mother board (310). [8] Device (300) according to claim 1, comprising: a first lateral edge of the mother plate (310) aligned with a first lateral edge of the rider region (320), and a second lateral edge of the mother plate (310) aligned with a second lateral edge of the rider region (320). [9] Battery module assembly (700) comprising: a module (115); a busbar (305) configured to be coupled to the module (115), the busbar (305) having a tab region (320), the tab region (320) defining one or more openings (415); and a mother plate (310) configured to be coupled to the rider region (320) of the bus bar (305), wherein one or more openings (515) in the mother plate (310) are aligned with the one or more openings (415) of the rider region (320), wherein at least a portion of a surface of the mother plate (310) is coupled to a surface of the rider region (320) of the bus bar (305). [10] Battery module assembly (700) according to claim 9, comprising: a first submodule (705) and a second submodule (705), wherein the first submodule (705) is arranged above the second submodule (705) and the second submodule (705) is configured to support the first submodule (705). [11] Battery module assembly (700) according to claim 9, comprising: a first submodule (705) and a second submodule (705); a plurality of busbars (305) including a first busbar (305) and a second busbar (305); and a plurality of mother plates (310) including a first mother plate (310) and a second mother plate (310), wherein the first mother plate (310) and the second mother plate (310) comprise a planar shape; the first busbar (305) and the first mother board (310) to form a first busbar assembly (300), wherein the first busbar assembly (300) is to be coupled to the first submodule (705); and the second busbar (305) and the second mother board (310) to form a second busbar assembly (300), wherein the second busbar assembly (300) is to be coupled to the second submodule (705). [12] Battery module assembly (700) according to claim 9, comprising: the mother plate (310) having a planar shape, the surface of the mother plate (310) being configured to be flush with the surface of the rider region (320) of the busbar (305); and the nut plate (310) connected to the rider region (320) of the busbar via at least one connection point (430), wherein the at least one connection point (430) includes a rivet. [13] Battery module assembly (700) according to claim 9, comprising: to irreversibly couple the mother plate (310) to the rider region (320) of the busbar (305) via at least two connection points (430), wherein a first connection point (430) is to be arranged on a first side of a longitudinal center line (520) of the mother plate (310) and a second connection point (430) is to be arranged on a second side of the longitudinal center line (520) of the mother plate (310), wherein the first connection point (430) and the second connection point (430) are arranged at a distance from the longitudinal center line (520). [14] Battery module assembly (700) according to claim 9, comprising: the mother plate (310) coupled to the rider region (320) of the bus bar (305) by at least one connection point (430), wherein the at least one connection point (430) includes an irreversible connection, the irreversible connection configured to prevent misalignment between the one or more openings (515) in the mother plate (310) and the one or more openings (415) of the bus bar (305). [15] Battery module assembly (700) according to claim 9, comprising: to irreversibly couple the mother plate (310) to the rider region (320) of the busbar (305) via at least two connection points (430), wherein the at least two connection points (430) must be arranged on a first side of the mother plate (310). [16] Battery module assembly (700) according to claim 9, comprising: the mother plate (310) which is irreversibly coupled to the rider region (320) of the busbar (305) via at least two connection points (430); a first connection point (430) arranged on one side of a first center line (520, 525) and a second connection point (430) arranged on the side of the first center line (520, 525), the first and second connection points (430) being arranged at a first distance from the first center line (520, 525); and wherein the first connection point (430) is arranged on a first side of a second center line (520, 525) and the second connection point (430) is arranged on a second side of the second center line (520, 525), the first and second connection points (430) being arranged at a second distance from the second center line (520, 525). [17] Battery module assembly (700) according to claim 9, comprising: a portion of a circumference of the rider region (320) of the busbar (305) aligned with a portion of a circumference of the mother board (310). [18] Method (900) comprising: Aligning (905) one or more openings (515) of a mother board (310) with one or more openings (415) of a bus bar (305), wherein the one or more openings (415) of the bus bar (305) are arranged in a tab region (320) of the bus bar (305), and wherein the bus bar (305) includes at least one connector (325) configured to couple the bus bar (305) to a battery module (115); and Coupling (910) the mother plate (310) to the rider region (320) of the bus bar (305), wherein at least a portion of a surface of the mother plate (310) is configured to be flush with a surface of the rider region (320) of the bus bar (305). [19] The method (900) of claim 18, comprising: Coupling (910) the mother plate (310) to the rider region (320) of the busbar (305) by at least one connection point (430), wherein the at least one connection point (430) includes a rivet, the mother plate (310) has a planar shape and the surface of the mother plate (310) is flush with the surface of the rider region (320) of the busbar (305). [20] The method (900) of claim 18, comprising: Coupling (910) the mother plate (310) to the rider region (320) of the bus bar (305) through at least one connection point (430), wherein the at least one connection point (430) includes an irreversible connection, wherein the irreversible connection is configured to prevent misalignment between the one or more openings (515) in the mother plate (310) and the one or more openings (415) of the bus bar (305).

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