# US 2021/0280950 A1 · Busbar holder for battery > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0280950 A1 - Document ID: US20210280950A1 - Status: Published application - Kind: A1 - Application number: 17/146,335 - Filed: 2021-01-11 - Published: 2021-09-09 - Earliest claimed: 2020-03-04 - Assignees: Damon Motors Inc. - Applicants: Damon Motors Inc. - Inventors: Derek Dorresteyn - Web page: https://patentgrep.com/patent/US20210280950A1 ## CPC - H01M 50/507: comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules - H01M 10/0404: {Machines for assembling batteries} - H01M 50/207: characterised by their shape - H01M 50/213: adapted for cells having curved cross-section, e.g. round or elliptic (H01M50/209, H01M50/216 take precedence) - Y02E 60/10: Energy storage using batteries - Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS ## Abstract A busbar holder with two busbar trays maintains positive and negative busbars separate and insulated from each other to reduce the chance of accidental short circuits. Cells are located in a frame onto which the busbar holder is mounted. One busbar is located in a bottom tray of the busbar holder. Legs of the busbar project down through holes in the bottom tray, for connection to one set of terminals of the cells. A top tray is placed over the bottom tray. Another busbar, in the top tray, is connected through holes in both trays to the other set of terminals of the cells. The busbar in the bottom tray is covered by the top tray. Holes through the busbar holder allow for hot gases to escape in the event of cell failure. ## Claims ### Claim 1 A busbar holder comprising: a bottom tray defining a first plurality of holes and a second plurality of holes; a first busbar on the bottom tray, the first busbar having legs that each pass through a different one of the first plurality of holes; a top tray defining a third plurality of holes, the top tray mounted above the bottom tray so that the third plurality of holes align with the second plurality of holes; and a second busbar on the top tray, the second busbar having legs that each pass through a different one of the third plurality of holes and a different one of the second plurality of holes. ### Claim 2 (depends on 1) The busbar holder of claim 1 wherein: the first busbar has first feet for connection to one polarity of terminals of a plurality of cells; and the second busbar has second feet for connection to another polarity of terminals of the plurality of cells. ### Claim 3 (depends on 1) The busbar holder of claim 1, wherein: the bottom tray has a first elongated slot that extends laterally in multiple locations to form first lateral channels; and the first busbar is located in the first elongated slot and first lateral channels. ### Claim 4 (depends on 3) The busbar holder of claim 3 comprising a wall adjacent to the first elongated slot and first lateral channels. ### Claim 5 (depends on 1) The busbar holder of claim 1, wherein: the top tray has a second elongated slot that extends laterally in multiple locations to form second lateral channels; and the second busbar is located in the second elongated slot and second lateral channels. ### Claim 6 (depends on 5) The busbar holder of claim 5 comprising a wall adjacent to the second elongated slot and second lateral channels. ### Claim 7 (depends on 1) The busbar holder of claim 1, wherein: the first busbar comprises an elongated central body and first branches extending therefrom in a first common plane, each first branch terminating in a different leg of the first busbar; and the second busbar comprises an elongated central body and second branches extending therefrom in a second common plane, each second branch terminating in a different leg of the second busbar. ### Claim 8 (depends on 7) The busbar holder of claim 7, wherein the bottom tray and the top tray enclose the elongated body and first branches of the first busbar. ### Claim 9 (depends on 1) The busbar holder of claim 1, wherein: the bottom tray comprises a plurality of caps extending from a lower surface thereof, each cap dimensioned to fit around an upper portion of a cell; and each cap encompasses one of the first plurality of holes and one of the second plurality of holes. ### Claim 10 (depends on 9) The busbar holder of claim 9 in combination with a frame, wherein: the frame comprises a plurality of compartments, each for a cell; and each compartment aligns with a cap. ### Claim 11 (depends on 1) The busbar holder of claim 1 wherein when the first and second busbars are connected to cells, a surface of each of the cells is exposed through a different aligned pair of one of the third plurality of holes and one of the first plurality of holes. ### Claim 12 A method for assembling a cell holder comprising: placing a cell in each compartment of frame that comprises a plurality of compartments; placing a bottom tray over the frame, the bottom tray defining a first plurality of holes and a second plurality of holes and comprising a plurality of caps extending from a lower surface thereof, each cap dimensioned to fit around an upper portion of one of the cells, wherein each cap encompasses one of the first plurality of holes and one of the second plurality of holes; connecting a first busbar to a first polarity terminal on each of the cells, the first busbar present on the bottom tray and having legs that each pass through a different one of the first plurality of holes; placing a top tray over the bottom tray, the top tray defining a third plurality of holes that align with the second plurality of holes; and connecting a second busbar to a second polarity terminal on each of the cells, the second busbar present on the top tray and having legs that each pass through a different one of the third plurality of holes and a different one of the second plurality of holes. ### Claim 13 A busbar holder kit comprising: a bottom tray defining a first plurality of holes and a second plurality of holes; a first busbar dimensioned to fit on the bottom tray, the first busbar having legs each of which are dimensioned to pass through a different one of the first plurality of holes; a top tray defining a third plurality of holes, the top tray dimensioned to mount above the bottom tray so that the third plurality of holes align with the second plurality of holes; and a second busbar dimensioned to fit on the top tray, the second busbar having legs each of which are dimensioned to pass through a different one of the third plurality of holes and a different one of the second plurality of holes. ### Claim 14 (depends on 13) The busbar holder kit of claim 13 wherein: the first busbar has first feet for connection to one polarity of terminals of a plurality of cells; and the second busbar has second feet for connection to another polarity of terminals of the plurality of cells. ### Claim 15 (depends on 13) The busbar holder kit of claim 13, wherein: the bottom tray has a first elongated slot that extends laterally in multiple locations to form first lateral channels; the first busbar is located in the first elongated slot and first lateral channels; the top tray has a second elongated slot that extends laterally in multiple locations to form second lateral channels; and the second busbar is located in the second elongated slot and second lateral channels. ### Claim 16 (depends on 15) The busbar holder kit of claim 15 wherein: the bottom tray comprises a first wall adjacent to the first elongated slot and first lateral channels; and the top tray comprises a second wall adjacent to the second elongated slot and second lateral channels. ### Claim 17 (depends on 13) The busbar holder kit of claim 13, wherein: the first busbar comprises an elongated central body and first branches extending therefrom in a first common plane, each first branch terminating in a different leg of the first busbar; and the second busbar comprises an elongated central body and second branches extending therefrom in a second common plane, each second branch terminating in a different leg of the second busbar. ### Claim 18 (depends on 13) The busbar holder kit of claim 13 further comprising a frame, wherein the frame comprises a plurality of compartments, each for a cell; the bottom tray comprises a plurality of caps extending from a lower surface thereof, each cap dimensioned to fit around an upper portion of one of the cells; each cap encompasses one of the first plurality of holes and one of the second plurality of holes; and each compartment aligns with a cap. ### Claim 19 A busbar holder comprising: a bottom tray defining a first plurality of holes; a first busbar on the bottom tray, the first busbar having a second plurality of holes that align with the first plurality of holes, and having legs that each pass through a different one of the first plurality of holes; a top tray defining a third plurality of holes, the top tray mounted above the first busbar so that the third plurality of holes align with the second plurality of holes; and a second busbar on the top tray, the second busbar having a fourth plurality of holes that align with the third plurality of holes, and having legs that each pass through a different aligned set of one of the third plurality of holes, one of the second plurality of holes and one of the first plurality of holes. ### Claim 20 (depends on 19) The busbar holder of claim 19 wherein when the first and second busbars are connected to cells, a surface of each of the cells is exposed through a different aligned group of one of the first plurality of holes, one of the second plurality of holes, one of the third plurality of holes and one of the fourth plurality of holes.