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Device for making releasable contact with a battery cell

A technology of battery cells and contact bodies, applied in the parts, coupling devices, electrical components of primary batteries, etc., can solve the problems of lack of replaceability of battery cells, damage of battery cells, etc., to avoid surface damage, improve electrical contact, The effect of simple manufacturing conditions

Pending Publication Date: 2021-10-01
约翰迪尔电动动力有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is understandably disadvantageous that, in addition to the limitations on assembly and the lack of replaceability of damaged cells, the currents and temperatures that occur during soldering can lead to damage to the cells

Method used

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  • Device for making releasable contact with a battery cell
  • Device for making releasable contact with a battery cell

Examples

Experimental program
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Effect test

Embodiment Construction

[0012] The device according to the invention has a contact spring base 1 with a contact tongue 3 protruding from the contact spring base 1 opposite to the connection direction 2 . to surround figure 1 To connect and electrically connect the first battery cell 4 shown in , the contact tongues 3 are arranged on the peripheral side of the contact spring base 1 and thus form a cell receptacle that is open against the connection direction 2 . The first battery cell 4 is detachably connected to the device via the contact tongues 3 , so that on the one hand under cyclical mechanical operating conditions a tolerance compensation can be achieved by the relative displacement of the battery cell 4 relative to the cell receptacle, And on the other hand, when inserting the battery cell 4 into the cell accommodating portion, the assembly process becomes easy. In order to ensure reliable and uniform contact despite the detachable connection, the contact tongue 3 is preferably figure 2 As ...

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PUM

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Abstract

A description is given of a device for making releasable contact between a battery cell (4) and a cell receptacle that is open counter to a joining direction (2) and that is delimited by a contact spring base (1) from which contact tongues (3) for holding the battery cell (4) around its casing protrude counter to the joining direction (2). In order to propose a device for making releasable contact with a battery cell (4) that allows a reliable electrical connection regardless of the relative position of the inserted battery cells and largely regardless of the diameter thereof, even in the event of periodic mechanical loading, without complicating the assembly process, it is proposed for the contact tongues (3) to have contact bodies (5), protruding radially into the cell receptacle, in the shape of a cut ovoid.

Description

technical field [0001] The invention relates to a device for detachably contacting a battery cell with a cell receptacle open opposite the connection direction and delimited by a contact spring base for surrounding the battery cell on the housing side The contact tongues protrude from the contact spring base counter to the connection direction. Background technique [0002] A contact spring for connecting two battery cells in series is known from document EP 3096372 A1. The contact spring has contact tongues which surround the first battery cell and connect the first battery cell to the second battery cell in a materially bonded manner. Especially with large, non-uniformly designed cells or cells with poor fit in the contact springs, the contact tongues cannot exert a sufficiently high clamping force on the housing of the cell, which is why under dynamic mechanical loads it is not possible to ensure Sufficiently reliable contacting of high-capacity cells with large diamete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R33/02H01M50/503H01M50/213
CPCH01M10/02H01M10/04H01M6/02H01M50/503H01M50/213H01R33/02A43B3/105A43B3/103A43B3/108Y02E60/10H01M50/107H01M50/152Y02P70/50A43B3/40
Inventor G.瓦尔德舒茨W.施穆德梅尔F.德雷克斯勒P.多布施
Owner 约翰迪尔电动动力有限责任公司