Busbar system featuring externally crimped connections for electrical contacts

• US 10,615,553 B2
• Filed: 07/31/2018
• Issued: 04/07/2020
• Est. Priority Date: 07/31/2017
• Status: Active Grant

• Current Assignee: Arcimoto, Inc.
• Original Assignee: Arcimoto, Inc.
• Inventors: Jordan, James, Boyd, David, Lachman-Curl, Jove
• Primary Examiner(s): Thompson, Timothy J
• Assistant Examiner(s): Egoavil, Guillermo J
• Application Number:
  US16/051,356
• Publication Number:
  US 20190036283A1
• Time in Patent Office: 616 Days
• Field of Search: 174 70 B, 701305, 339 22
• CPC Class Codes: H01M 50/209 adapted for prismatic or rectangular cells H01M50/216 takes precedence
• CPC Class Codes: H01M 50/507 comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
• CPC Class Codes: H01M 50/516 by welding, soldering or brazing
• CPC Class Codes: H01M 50/522 Inorganic material
• CPC Class Codes: H01R 25/162 Electrical connections between or with rails or bus-bars rails having primarily a non electrical function H01R4/64
• CPC Class Codes: H01R 4/182 for flat conductive elements, e.g. flat cables H01R4/01 takes precedence
• CPC Class Codes: H02G 5/10 Cooling
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A busbar system comprises an electrically conductive busbar having multiple ridges that project from a first side of the busbar. Each ridge defines a channel having an opening on a second side of the busbar. Interior facing surfaces of each ridge that define the channel are substantially smooth and/or free of protrusions or teeth prior to the ridge being externally crimped. The busbar system further comprises multiple electrically conductive electrical contacts having a substantially broad and thin configuration, wherein one or more of the electrical contacts are secured within each channel of the busbar by the ridge being externally crimped by a tool having surfaces that include one or more protrusions.

Claims

1. A busbar system, comprising:

an electrically conductive busbar having multiple ridges that project from a first side of the busbar, each ridge defining a channel having an opening on a second side of the busbar, wherein interior facing surfaces of each ridge that define the channel are substantially smooth and/or free of protrusions or teeth prior to the ridge being externally crimped; and

multiple electrically conductive electrical contacts having a substantially broad and thin configuration, wherein at least one electrical contact is secured within each channel of the busbar by the ridge being externally crimped by a tool having surfaces that include one or more protrusions.

2. The busbar system of claim 1, wherein two or more electrically conductive contacts of the multiple electrically conductive contacts are externally crimped within each channel of the multiple channels.

3. The busbar system of claim 2, wherein the two or more electrically conductive contacts that are externally crimped within each channel are arranged in layers between the two interior facing surfaces of that channel.

4. The busbar system of claim 3, wherein each electrically conductive contact of the multiple electrically conductive contacts take the form of an electrically conductive foil, ribbon, or sheet.

5. The busbar system of claim 1, wherein each electrically conductive contact of the multiple electrically conductive contacts take the form of an electrically conductive foil, ribbon, or sheet.

6. The busbar system of claim 1, wherein each electrically conductive contact of the multiple electrically conductive contacts extend along respective channels of the multiple channels from a first side to a second side of the electrically conductive busbar.

7. The busbar system of claim 1, wherein each electrically conductive contact of the multiple electrically conductive contacts project outward from a respective channel of the multiple channels to contact a respective battery terminal of a battery array.

8. The busbar system of claim 7, further comprising the battery array.

9. A busbar system, comprising:

an electrically conductive busbar having multiple electrically conductive contacts each externally crimped within a respective channel of multiple channels defined by multiple ridges of the electrically conductive busbar to retain the multiple electrically conductive contacts within the multiple channels;

wherein a thinnest dimension of each electrically conductive contact is located between two interior facing surfaces of a respective channel of the multiple channels;

wherein a first dimension of each electrically conductive contact that is larger than the thinnest dimension of that electrically conductive contact extends along a respective channel of the multiple channels; and

wherein a second dimension of each electrically conductive contact that is larger than the thinnest dimension of that electrically conductive contact projects outward from a respective channel of the multiple channels in a direction that opposes the multiple ridges.

10. The busbar system of claim 9, wherein two or more electrically conductive contacts of the multiple electrically conductive contacts are externally crimped within each channel of the multiple channels.

11. The busbar system of claim 10, wherein the two or more electrically conductive contacts that are externally crimped within each channel are arranged in layers between the two interior facing surfaces of that channel.

12. The busbar system of claim 11, wherein each electrically conductive contact of the multiple electrically conductive contacts take the form of an electrically conductive foil, ribbon, or sheet.

13. The busbar system of claim 9, wherein each electrically conductive contact of the multiple electrically conductive contacts take the form of an electrically conductive foil, ribbon, or sheet.

14. The busbar system of claim 9, wherein each electrically conductive contact of the multiple electrically conductive contacts extend along respective channels of the multiple channels from a first side to a second side of the electrically conductive busbar.

15. The busbar system of claim 9, wherein each electrically conductive contact of the multiple electrically conductive contacts project outward from a respective channel of the multiple channels to contact a respective battery terminal of a battery array.

16. The busbar system of claim 15, further comprising the battery array.

17. A method of manufacturing a busbar system, comprising:

inserting a plurality of electrically conductive contacts into each channel of an electrically conductive busbar having multiple channels; and

externally crimping opposing sides of each ridge that projects from a first side of the busbar to secure the plurality of electrical conductive contacts within each channel, each ridge defining a respective channel of the multiple channels having an opening on a second side of the busbar.

18. The method of claim 17, wherein interior facing surfaces of each ridge that define the channel are substantially smooth and/or free of protrusions or teeth prior to the ridge being externally crimped.

19. The method of claim 18, wherein the plurality of electrically conductive contacts are secured within each channel of the busbar by the ridge being externally crimped by a tool having surfaces that include one or more protrusions.

20. The method of claim 19, wherein the plurality of electrically conductive contacts that are externally crimped within each channel are arranged in layers between two interior facing surfaces of that channel.