Electrode structure
A technology of electrode structure and battery module, applied in the direction of structural parts, circuits, conductive connections, etc., to achieve the effect of suppressing the generation of metal powder
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Embodiment approach 1
[0033] figure 1 It is a plan view of the structure of the battery device of this embodiment. like figure 1 As shown, the battery arrangement 1 has a plurality of battery modules 11 . exist figure 1 In the illustrated battery device 1 , the battery modules 11 are arranged in two rows such that their main surfaces are parallel to each other. Here, an example in which the battery modules 11 are arranged in two rows is shown, but it may be one row or three or more rows.
[0034] Each battery module 11 has electrodes 21 constituting a positive electrode and a negative electrode, respectively. The electrodes 21 of adjacently arranged battery modules 11 are connected to each other by a bus bar 81 . The bus bar 81 is made of plate-shaped metal.
[0035] Constraint plates 91 are provided at the ends of the arranged plurality of battery modules 11 . The constraining plate 91 applies a compressive force from both ends to the arranged plurality of battery modules 11 . As a resu...
Embodiment approach 2
[0075] Next, refer to Figure 8 and Figure 9 , Embodiment 2 will be described. Figure 8 It is an exploded perspective view showing the structure of the electrode of this embodiment, Figure 9 is a vertical cross-sectional view showing the structure of the electrode.
[0076] In the above-described embodiment, the threaded shaft portion 31b is constituted by the shaft portion of a headed bolt, but in this embodiment, the threaded shaft portion 31b is constituted by the headless set screw 37 . The so-called headless setscrew (headless setscrew) is different from the anchor bolt used in the above-mentioned embodiment, and is a screw whose both ends are constituted by a threaded shaft itself without a screw head. In order to fasten the headless set screw, in the headless set screw 37 of this embodiment, a hexagonal hole is provided in the end surface.
[0077] The headless set screw used in this embodiment may be a headless set screw as long as it does not have a bolt head a...
Embodiment approach 3
[0082] Next, refer to Figure 10 , Embodiment 3 will be described. Figure 10 It is a longitudinal sectional view showing the structure of the electrode of this embodiment.
[0083] The structure of the electrode 21 of this embodiment differs from that of Embodiment 1, and the structure of the rotation prevention part of a nut. In the nut 39 of this embodiment, the groove part 38 extended in the insertion direction of the nut 39 is provided in the bottom surface. Accordingly, a key portion 47 protruding upward is provided on the substrate portion 44 of the insulator 43 .
[0084] The key portion 47 of the base plate portion 44 is engaged with the groove portion 38 of the nut 39 . The groove portion 38 of the nut 39 is opened laterally at its end. Thereby, similarly to the nut 33 and the joining member 35 in Embodiment 1, the nut 39 can be inserted from the lateral direction in a step after the metal terminal 41 is fixed to the cover body 13b.
[0085] In this embodiment, ...
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