JP-7856204-B2 - Battery wiring module

JP7856204B2JP 7856204 B2JP7856204 B2JP 7856204B2JP-7856204-B2

Inventors

佐藤洋

Assignees

住友電装株式会社

Dates

Publication Date: 20260511
Application Date: 20250925

Claims (6)

A battery wiring module that is attached to a battery, A wire electrically connected to the aforementioned battery, The system comprises a case for housing the aforementioned electric wires, The case has an extension that engages with a locking portion provided on the battery, The extension piece has a first portion extending away from the battery, a second portion folded back from the first portion and extending toward the battery, and a locking portion provided on the second portion that locks into the locking portion. Battery wiring module.
The extension has a first bending point set at the base end of the first portion and a second bending point set at the folded portion between the first portion and the second portion. The battery wiring module according to claim 1.
When the battery side of the extension piece is considered the lower side and the opposite side is considered the upper side, The first bending point is located below the locking portion, The second bending point is located above the locking portion. The battery wiring module according to claim 2.
The case has a sensor housing section for housing a temperature sensor for detecting the temperature of the battery, The temperature sensor has lead wires, When the battery side of the extension piece is considered the lower side and the opposite side is considered the upper side, the lead wire passes over the upper side of the extension piece. The battery wiring module according to claim 1.
The extension piece is designated as the first extension piece, and the locking portion is designated as the first locking portion. The case has a second extension that is locked to a second locking portion provided on the battery, The sensor housing portion is provided between the first extension piece and the second extension piece. The battery wiring module according to claim 4.
The locking portion of the first extension is designated as the first locking portion. The second extension piece has a third portion extending toward the battery, a fourth portion that is folded back from the third portion and extends away from the battery, and a second locking portion provided on the fourth portion that locks into the second locking portion. The battery wiring module according to claim 5.

Description

This disclosure relates to a battery wiring module. For example, as disclosed in Patent Document 1, a battery wiring module is attached to a high-voltage battery used as a power source for driving vehicles such as electric vehicles and hybrid vehicles. The battery wiring module comprises wires electrically connected to the battery and a case housing those wires. Japanese Patent Publication No. 2014-89912 Figure 1 is a schematic plan view of the battery wiring module of the embodiment.Figure 2 is a perspective view showing a part of the case in a battery wiring module of the same configuration.Figure 3 is a plan view showing a part of the case in a battery wiring module of the same configuration.Figure 4 is a cross-sectional view taken along line 4-4 in Figure 3.Figure 5 is a cross-sectional view illustrating the function of the first extension piece in a battery wiring module of the same configuration. [Description of Embodiments in this Disclosure] First, the embodiments of this disclosure will be listed and described. The battery wiring module of this disclosure is [1] A battery wiring module to be attached to a battery, comprising an electric wire electrically connected to the battery and a case for housing the electric wire, wherein the case has an extension piece that is locked to a locking portion provided on the battery, and the extension piece has a first portion that extends away from the battery, a second portion that is folded back from the first portion and extends toward the battery, and a locking portion provided on the second portion that is locked to the locking portion. This configuration allows the case to be held in place by an extended piece that engages with the battery's locking portion, preventing it from separating from the battery. This suppresses the case from lifting. Furthermore, the extended piece can bend due to the folded shape formed by the first and second portions, allowing the locking portion on the second portion to easily engage with the locking portion. Additionally, the first and second portions form a folded shape that is convex toward the battery. This allows for securing space on the opposite side of the battery from the extended piece. [2] In the above [1], the extension may have a first bending point set at the base end of the first portion and a second bending point set at the folded portion between the first portion and the second portion. This configuration allows the extended portion to be more flexible due to the first and second bending points. This makes it easier to lock the locking portion provided in the second section with the locked portion. [3] In the above [2], when the battery side of the extension piece is considered the lower side and the opposite side is considered the upper side, the first bending point may be located below the locking portion, and the second bending point may be located above the locking portion. According to this configuration, when assembling the case to the battery, the second portion bends towards the first portion around the second bending point. The first portion then bends away from the locking portion around the first bending point. As a result, the locking portion is displaced downwards, i.e., towards the battery, when engaging with the locking portion. Therefore, it becomes easier to lock the locking portion of the extension piece with the locking portion. [4] In any of the above [1] to [3], the case has a sensor housing for housing a temperature sensor for detecting the temperature of the battery, and the temperature sensor has lead wires, and when the battery side of the extension piece is facing downwards and the opposite side is facing upwards, the lead wires may pass over the extension piece. With this configuration, the temperature sensor's lead wires pass through the space above the extension piece, making effective use of that space. [5] In the above [4], the extension piece is a first extension piece, the locking portion is a first locking portion, the case has a second extension piece that locks to a second locking portion provided on the battery, and the sensor housing portion may be provided between the first extension piece and the second extension piece. This configuration allows the first and second extension pieces to hold the case in place on both sides of the sensor housing, preventing it from separating from the battery. This makes it possible to more effectively suppress the lifting of the portion of the case containing the sensor housing. [6] In the above [5], the locking portion of the first extension piece is designated as the first locking portion, and the second extension piece may have a third portion extending toward the battery, a fourth portion extending away from the battery by being folded back from the third portion, and a second locking portion provided on the fourth portion and locked to the second locking portion. With this configuration, the second extension can bend due to the fold