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Monitoring apparatus

A technology of monitoring device and voltage detection circuit, applied in the direction of measurement device, power consumption device, circuit device, etc., can solve the problems of detection accuracy change, voltage drop change, etc.

Pending Publication Date: 2019-12-27
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the connection positions to the voltage detection lines on the plurality of bus bars are different for the plurality of bus bars, the voltage drops of the voltages detected in the plurality of voltage detection lines vary.
These changes in voltage drop may cause changes in detection accuracy of voltages detected in multiple voltage detection lines (wiring patterns)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0049] Figure 1 to Figure 7 The battery pack monitoring device according to the present embodiment will be described. In this embodiment, an example in which the battery pack is applied to a hybrid vehicle is described.

[0050] (Battery Pack Overview)

[0051] The battery pack 400 is used as a power supply for electric loads of a hybrid vehicle. The electric load has a motor generator that functions as a power supply source and a power generation source. For example, when the motor generator performs power running, the battery pack 400 is discharged to supply electric power to the motor generator. When the motor generator generates power, the battery pack 400 is charged with electric power generated through the power generation.

[0052] The battery pack 400 has a battery ECU 300 . Battery ECU 300 is electrically connected to each ECU (also referred to as an on-vehicle ECU) mounted on a hybrid vehicle. The battery ECU 300 and the vehicle ECU mutually transmit or receiv...

no. 2 example

[0157] refer to Figure 11 to Figure 16 , to describe the second embodiment. The monitoring device according to each embodiment described below has many similarities with the embodiments described above. Therefore, hereinafter, descriptions of similar parts are omitted. Mainly describe the different parts. Hereinafter, the same reference numerals are applied to the same elements as those described above.

[0158] In the first embodiment, it is exemplified that the monitoring section 10 is placed on the first main surface 220e. On the contrary, in this example, if Figure 11 and Figure 12 As shown, the monitoring portion 10 is placed on the upper end surface 220a.

[0159] In order to adopt the corresponding structure, not only the boundary between the first wiring portion 33 and the second wiring portion 34 but also the second wiring portion 34 is bent as described below. The supporting portion 38 of the arm 37 in this embodiment has a rectangular shape extending away ...

no. 3 example

[0179] Figures 18 to 27 shows the battery pack monitoring device according to this embodiment. In this embodiment, an example in which a battery pack is applied to a hybrid vehicle is described.

[0180] (Battery Pack Overview)

[0181] The battery pack 1400 is used as a power supply for electric loads of a hybrid vehicle. The electric load has a motor generator serving as a power supply source and a motor generator of a power supply source. For example, when the motor generator performs power running, the battery pack 1400 is discharged to supply electric power to the motor generator. When the motor generator generates power, the battery pack 1400 is charged with electric power generated through the power generation.

[0182] Battery pack 1400 has battery ECU 1300 . Battery ECU 1300 is electrically connected to each ECU (vehicle ECU) mounted on a hybrid vehicle. The battery ECU 1300 and the vehicle ECU mutually transmit or receive signals to perform cooperative control...

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PUM

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Abstract

A monitoring apparatus includes: a monitoring portion that monitors a voltage of each of battery cells connected in series, each of the battery cells having an electrode terminal; and a wiring portionthat connects the monitoring portion and the electrode terminal. The wiring portion includes a first flexible substrate and a second substrate that have flexibility and are integrally linked with each other. A linking part where the first flexible substrate and the second flexible substrate are linked is bent. The first flexible substrate is connected with the electrode terminal. The second flexible substrate is connected with the monitoring portion. One of the first flexible substrate and the second flexible substrate includes an arm. Another of the first flexible substrate and the second flexible substrate other than the one including the arm includes a slit. The arm is fixed to the slit, causing the linking part to be reinforced.

Description

technical field [0001] The present disclosure relates to a battery cell monitoring device. Background technique [0002] Patent Document 1 shows a wiring material that connects a plurality of battery cells to a control board. [0003] Patent Document 2 shows a battery connection module that detects voltages of a plurality of unit cells. The battery connection module has: a bus bar connecting electrodes of different battery cells to each other; and a flexible substrate having a voltage detection line connected to the bus bar. [0004] Patent Document 1: JP 2015-118731 A [0005] Patent Document 2: JP 2017-118731 A [0006] The wiring material described in Patent Document 1 is connected to electrodes of a plurality of battery cells. Therefore, the wiring material is placed on the surface of a plurality of battery cells. Electrodes of a plurality of battery cells are formed on a surface (also referred to as a forming surface). [0007] The wiring material is connected not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCB60L58/12B60L50/64B60L3/12B60L2240/547G01R31/396G01R19/16542Y02T10/70G01R31/364G01R31/3828G01R31/388
Inventor 幸田真和河本真介沟口隼山川亮
Owner DENSO CORP