Battery disconnect unit

Patent metadata

Field	Value
Publication number	US-9878681-B2
Application number	US-201514866583-A
Country	US
Kind code	B2
Filing date	Sep 25, 2015
Priority date	Mar 11, 2015
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

Disclosed is a Battery Disconnect Unit that is good in assemblability and couplability because a middle cover accommodated in a lower case stably supports a relay terminal and a guide bar and a hood structure are applied to the middle cover. The BDU is disposed between a battery and an inverter to stably supply or break power of the battery to a power system of a vehicle. The BDU includes a lower case provided in a box shape with a top opened and a middle cover accommodated into and coupled to the lower case to press the relay terminal. A relay terminal hole into which a relay terminal is fitted is disposed on a bottom of the lower case, and an electric component is mounted on a top of the middle cover. A first fixing hook capable of being fastened to the lower case is provided in the middle cover.

First claim

What is claimed is:

1. A battery disconnect unit (BDU) located between a battery and an inverter to stably supply or break power from the battery to a power system of a vehicle, the BDU comprising:
a lower case having a box shape with an open top and a first hole located on a bottom of the lower case into which a relay terminal is fitted;
a middle cover located in and coupled to the lower case to press the relay terminal; and
a guide bar under the middle cover, the guide bar a reference point for assembly,
wherein the middle cover comprises a first hook capable of being fastened to the lower case,
wherein the lower case comprises a second hole to which the guide bar is coupled, and
wherein a circular supporter for stably supporting the guide bar is located near the bar hole.

2. The BDU of claim 1 , wherein the middle cover further comprises a bar to restrict vertical movement of a bus bar.

3. The BDU of claim 1 , wherein the middle cover further comprises a protruding leg portion, the leg portion including a hole for attaching a signal bus bar.

4. The BDU of claim 3 , wherein the leg portion further includes a second hook at one end.

Assignees

• Lsis Co Ltd

Inventors

• Kim Kyoo Seok

Classifications

• H02J7/751

  concerning the insertion or the connection of the batteries · CPC title

• H02J7/663 Primary

  using battery or load disconnect circuits (H02J9/002 takes precedence) · CPC title

• B60L3/0046

  relating to electric energy storage systems, e.g. batteries or capacitors · CPC title

• B60R16/03 Primary

  for supply of electrical power to vehicle subsystems {or for (circuit arrangements for charging batteries H02J7/00)} · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title