Precharging unit for a battery interruption unit

Patent metadata

Field	Value
Publication number	US-2016190841-A1
Application number	US-201414910912-A
Country	US
Kind code	A1
Filing date	Aug 1, 2014
Priority date	Aug 7, 2013
Publication date	Jun 30, 2016
Grant date	—

Abstract

A battery interruption unit and a precharging unit, comprising a main contactor, a precharging contactor, a precharging resistor and a housing, are proposed. The main contactor and the precharging contactor, in the same way as the precharging resistor, are arranged in the housing. The precharging resistor and the precharging contactor are electrically connected, as an electrical series circuit in parallel with the main contactor, to two external electrical connections on the housing.

First claim

1 . A precharging unit ( 1 ) for a battery disconnect unit ( 100 ), comprising
a main contactor ( 2 ), a precharging contactor ( 3 ), a precharging resistor ( 4 ), and a housing ( 5 ), wherein the main contactor ( 2 ), the precharging contactor ( 3 ) and the precharging resistor ( 4 ) are arranged in the housing ( 5 ), wherein in addition the precharging resistor ( 4 ) and the precharging contactor ( 3 ) are electrically connected, as an electrical series circuit in parallel with the main contactor ( 2 ), to two external electrical connections ( 6 , 7 ) on the housing ( 5 ).

2 . The precharging unit as claimed in claim 1 , wherein the housing ( 5 ) comprises plastic and/or metal.

3 . The precharging unit as claimed in claim 1 , wherein the precharging resistor ( 4 ) is thermally coupled to a metallic part of the housing ( 5 ) by means of a thermally conductive paste.

4 . The precharging unit as claimed in claim 1 , wherein the main contactor ( 2 ) and the precharging contactor ( 3 ) are arranged essentially identically oriented in terms of their opening directions.

5 . The precharging unit as claimed in claim 1 , wherein the main contactor ( 2 ) and the precharging contactor ( 3 ) are arranged essentially oriented in opposition to one another in terms of their opening directions.

6 . The precharging unit as claimed in claim 1 , wherein the precharging resistor ( 4 ) has a resistance of less than 500 ohms.

7 . The precharging unit as claimed in claim 1 , wherein the precharging unit ( 1 ) also comprises a solid-borne sound isolating unit ( 17 , 19 ), by means of which it is configured to be secured to a peripheral.

8 . The precharging unit as claimed in claim 1 , wherein the housing ( 5 ) is configured to be used as a closure of a control device ( 100 ), assigned to the precharging unit, as a peripheral.

9 . The precharging unit as claimed in claim 8 , wherein, in particular, the external electrical connections ( 6 , 7 ) are configured to be arranged within a volume, closed off by the housing ( 5 ), of the assigned control device ( 100 ).

10 . A battery disconnect unit ( 100 ), comprising a precharging unit ( 1 ) as claimed in claim 1 .

11 . The precharging unit as claimed in claim 1 , wherein the precharging resistor ( 4 ) has a resistance of between 20 and 60 ohms.

12 . The precharging unit as claimed in claim 1 , wherein the precharging resistor ( 4 ) has a resistance of between 30 and 50 ohms.

Assignees

• Bosch Gmbh Robert

Inventors

• Galamb Gergely

Classifications

• H02J7/663

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

• H02J7/50

  acting upon multiple batteries simultaneously or sequentially · CPC title

• H02J7/751 Primary

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

• H02J7/65 Primary

  against overtemperature · CPC title

• H02J7/0031

  Electricity · mapped topic