Vehicle and battery pack thereof

Patent metadata

Field	Value
Publication number	US-12565091-B2
Application number	US-202218079335-A
Country	US
Kind code	B2
Filing date	Dec 12, 2022
Priority date	Jun 19, 2020
Publication date	Mar 3, 2026
Grant date	Mar 3, 2026

Abstract

A battery pack includes a tray, multiple batteries, a distribution box, and a sealing plate. The tray includes an accommodating space, and the batteries and the distribution box are disposed in the accommodating space. The batteries are electrically connected to the distribution box. The tray includes a bottom plate, an access port in communication with the accommodating space is provided on the bottom plate, and the access port is disposed opposite to the distribution box. The sealing plate covers the access port, and the sealing plate is detachably connected to the bottom plate.

First claim

What is claimed is:

1 . A battery pack, comprising a tray, a plurality of batteries, a distribution box, a plurality of connection sheets, and a sealing plate, wherein
the tray comprises an accommodating space, a bottom plate, and a side beam connected to the bottom plate to define the accommodating space, the side beam comprises a primary side beam comprising an opening, and the opening is in communication with the accommodating space, each of the batteries comprises a top surface that faces the opening, a positive terminal and a negative terminal are disposed at an interval on the top surface of each of the batteries, each of the connection sheets is disposed between two adjacent batteries for electrically connecting a positive terminal of a first one of the two adjacent batteries to a negative terminal of a second one of the two adjacent batteries, the batteries and the distribution box are disposed in the accommodating space, the batteries are electrically connected to the distribution box, an access port in communication with the accommodating space is provided on the bottom plate, the access port is disposed corresponding to the distribution box, the sealing plate covers the access port, and the sealing plate is detachably connected to the bottom plate.

2 . The battery pack according to claim 1 , wherein a height of the side beam is greater than or equal to a height of the batteries.

3 . The battery pack according to claim 1 , wherein the tray further comprises a secondary side beam, the secondary side beam covers the opening, and the secondary side beam is detachably connected to the primary side beam.

4 . The battery pack according to claim 3 , wherein an end portion of the primary side beam and an end portion of the bottom plate form the opening, and the secondary side beam is detachably connected to the bottom plate.

5 . The battery pack according to claim 1 , wherein
the primary side beam comprises a first side beam, a second side beam, and a third side beam, the first side beam is disposed opposite to the second side beam, the third side beam is disposed opposite to a secondary side beam, the first side beam comprises a first end and a second end opposite to each other, the second side beam comprises a third end and a fourth end opposite to each other, and the bottom plate comprises a connection end and a fixed end opposite to each other, the first end, the third end, and the connection end are disposed on a first side of the tray and form the opening, and the secondary side beam is detachably connected to the first end, the third end, and the connection end, and the second end, the fourth end, and the fixed end are disposed on a second side of the tray, and the third side beam is fixedly connected to the second end, the fourth end, and the fixed end.

6 . The battery pack according to claim 1 , wherein the tray further comprises a plurality of interval side beams, the interval side beams are disposed at intervals in the accommodating space to divide the accommodating space into a plurality of subspaces, and at least one of the batteries is disposed in one of the subspaces.

7 . The battery pack according to claim 1 , further comprising a structural adhesive, wherein the structural adhesive is disposed between the bottom plate and the batteries to bond the batteries to the bottom plate.

8 . The battery pack according to claim 2 , further comprising
a cooling plate disposed on the side beam to cover the tray; and a thermally conductive structural adhesive disposed between the batteries and the cooling plate.

9 . A vehicle, comprising a vehicle body and a battery pack, wherein
the battery pack comprises a tray, a plurality of batteries, a distribution box, a plurality of connection sheets, and a sealing plate, the tray comprises an accommodating space, a bottom plate, and a side beam connected to the bottom plate to define the accommodating space, the side beam comprises a primary side beam comprising an opening, and the opening is in communication with the accommodating space, each of the batteries comprises a top surface that faces the opening, a positive terminal and a negative terminal are disposed at an interval on the top surface of each of the batteries, each of the connection sheets is disposed between two adjacent batteries for electrically connecting a positive terminal of a first one of the two adjacent batteries to a negative terminal of a second one of the two adjacent batteries, the batteries and the distribution box are disposed in the accommodating space, the batteries are electrically connected to the distribution box, an access port in communication with the accommodating space is provided on the bottom plate, the access port is disposed opposite to the distribution box, the sealing plate covers the access port, and the sealing plate is detachably connected to the bottom plate; and an outer surface of the vehicle body comprises a first mounting position, and the battery pack is fixed in the first mounting position; and/or, an outer surface of a bottom of the vehicle body comprises a second mounting position, and the battery pack is fixed in the second mounting position.

10 . The vehicle according to claim 9 , wherein a height of the side beam is greater than or equal to a height of the batteries.

11 . The vehicle according to claim 9 , wherein the tray further comprises a secondary side beam, the secondary side beam covers the opening, and the secondary side beam is detachably connected to the primary side beam.

12 . The vehicle according to claim 11 , wherein an end portion of the primary side beam and an end portion of the bottom plate form the opening, and the secondary side beam is detachably connected to the bottom plate.

13 . The vehicle according to claim 9 , wherein
the primary side beam comprises a first side beam, a second side beam, and a third side beam, the first side beam is disposed opposite to the second side beam, the third side beam is disposed opposite to a secondary side beam, the first side beam comprises a first end and a second end opposite to each other, the second side beam comprises a third end and a fourth end opposite to each other, and the bottom plate comprises a connection end and a fixed end opposite to each other, the first end, the third end, and the connection end are disposed on a first side of and form the opening, and the secondary side beam is detachably connected to the first end, the third end, and the connection end, and the second end, the fourth end, and the fixed end are disposed on a second side of, and the third side beam is fixedly connected to the second end, the fourth end, and the fixed end.

14 . The vehicle according to claim 9 , wherein the tray further comprises a plurality of interval side beams, the interval side beams are disposed at intervals in the accommodating space to divide the accommodating space into a plurality of subspaces, and at least one of the batteries is disposed in one of the subspaces.

15 . The vehicle according to claim 9 , wherein the battery pack comprises a structural adhesive, and the structural adhesive is disposed between the bottom plate and the batteries to bond the batteries to the bottom plate.

16 . The vehicle according to claim 10 , wherein the battery pack comprises
a cooling plate disposed on the side beam to cover the tray; and a thermally conductive structural adhesive disposed between the batteries and the cooling plate.

Assignees

• Byd Co Ltd

Inventors

• Tan Liangwen
• Lu Peng
• Song Na
• Tan Jing
• Chen Wenhui

Classifications

• H01M2220/20

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

• H01M10/425

  Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00) · CPC title

• B60K2001/0405

  characterised by their position · CPC title

• H01M50/204

  Racks, modules or packs for multiple batteries or multiple cells · CPC title

• H01M50/244

  Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method · CPC title