Battery spacer, electric core protection assembly and power battery

Patent metadata

Field	Value
Publication number	US-10243190-B2
Application number	US-201715403853-A
Country	US
Kind code	B2
Filing date	Jan 11, 2017
Priority date	Jul 31, 2014
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

A battery spacer, an electric core protection assembly having the battery spacer and a power battery are provided. The battery spacer includes: a spacer body; a plurality of protrusions, each protrusion protruding from an inner surface of the spacer body, extending in a longitudinal direction of the spacer body, and formed by recessing a portion of an outer surface of the spacer body; a plurality of grooves formed in the outer surface of the spacer body, each groove corresponding to one of the plurality of protrusions respectively and formed by recessing the portion of the outer surface of the spacer body; and a plurality of liquid guiding slots formed in the outer surface of the spacer body and extending from the grooves to an edge of the spacer body respectively.

First claim

What is claimed is:

1. A battery spacer, comprising:
a spacer body;
a plurality of protrusions, each protrusion protruding from an inner surface of the spacer body, extending in a longitudinal direction of the spacer body, and formed by recessing a portion of an outer surface of the spacer body;
a plurality of grooves formed in the outer surface of the spacer body, each groove corresponding to one of the plurality of protrusions respectively and formed by recessing the portion of the outer surface of the spacer body;
at least one reinforcing plate disposed within at least one of the plurality of grooves; and
a plurality of liquid guiding slots formed in the outer surface of the spacer body and extending from the plurality of grooves to an edge of the spacer body respectively.

2. The battery spacer of claim 1 , wherein the plurality of slots extend in the longitudinal direction of the spacer body.

3. The battery spacer of claim 1 , wherein the at least one reinforcing plate is disposed in a lateral direction of the spacer body, and defines an upper surface obliquely extending downwards from inside to outside and a lower surface.

4. The battery spacer of claim 3 , wherein the lower surface of the at least one reinforcing plate obliquely extends upwards from inside to outside.

5. The battery spacer of claim 1 , further comprising a plurality of reinforcing plates disposed within each groove.

6. The battery spacer of claim 1 , further comprising a connecting member disposed on a top of the spacer body and configured to be connected with an insulating member via a snap connection.

7. The battery spacer of claim 6 , wherein the connecting member comprises two snap teeth opposed to each other in a lateral direction of the spacer body, and a plane in which the two snap teeth are located is orthogonal to the outer surface of the spacer body.

8. An electric core protection assembly, comprising:
a battery spacer according to claim 1 ; and
an insulating member connected with a top of the battery spacer via a snap connection.

9. The electric core protection assembly of claim 8 , wherein the battery spacer comprises two snap teeth disposed on the top thereof.

10. The electric core protection assembly of claim 9 , wherein the two snap teeth are opposed to each other in a lateral direction of the spacer body, and a plane in which the two snap teeth are located is orthogonal to the outer surface of the spacer body.

11. The electric core protection assembly of claim 10 , wherein the insulating member comprises two snap grooves formed in an upper surface of an end thereof and opposed to each other,
wherein the snap teeth are snapped into the snap grooves respectively such that the battery spacer is connected with the insulating member by a snap fit connection between the snap teeth and the snap grooves.

12. The electric core protection assembly of claim 11 , wherein at least a part of a side wall surface of the snap groove in the lateral direction of the spacer body is configured to have an arc shape and protrude outwards in the lateral direction of the spacer body, and the snap tooth has a shape matched with that of the snap groove.

13. A power battery, comprising:
a plurality of electric cores having a tab at an end thereof; and
a battery spacer according to claim 1 ,
wherein the tab is received within a positioning area formed between adjacent protrusions such that the tab is held and positioned by the adjacent protrusions.

14. The power battery of claim 13 , wherein the plurality of electric cores are disposed side by side.

15. The power battery of claim 13 , wherein the tab is configured as a winding tab, and the positioning area has a shape matched with that of the winding tab.

16. A power battery, comprising:
a plurality of electric cores having a tab at an end thereof;
and
an electric core protection assembly according to claim 8 ,
wherein the tab is received in a positioning area formed between adjacent protrusions, held and positioned by the adjacent protrusions.

17. An electric core protection assembly, comprising:
a battery spacer comprising
a spacer body;
a plurality of protrusions, each protrusion protruding from an inner surface of the spacer body, extending in a longitudinal direction of the spacer body;
a plurality of grooves formed in the outer surface of the spacer body;
at least one reinforcing plate disposed within at least one of the plurality of grooves;
a plurality of liquid guiding slots formed in the outer surface of the spacer body and extending from the plurality of grooves to an edge of the spacer body respectively; and

an insulating member connected with a top of the battery spacer via a snap connection.

18. A power battery, comprising:
a plurality of electric cores having a tab at an end thereof; and
a battery spacer comprising
a spacer body;
a plurality of protrusions, each protrusion protruding from an inner surface of the spacer body, extending in a longitudinal direction of the spacer body;
a plurality of grooves formed in the outer surface of the spacer body;
at least one reinforcing plate disposed within at least one of the plurality of grooves;
a plurality of liquid guiding slots formed in the outer surface of the spacer body and extending from the plurality of grooves to an edge of the spacer body respectively,

wherein the tab is received within a positioning area formed between adjacent protrusions such that the tab is held and positioned by the adjacent protrusions.

Assignees

• Byd Co Ltd

Inventors

• Yang Keli
• Jiang Luxia
• Hu Shichao
• Zhu Jianhua

Classifications

• H01M50/112 Primary

  Monobloc comprising multiple compartments · CPC title

• H01M50/471

  Spacing elements inside cells other than separators, membranes or diaphragms (for preventing incorrect contact inside or outside batteries H01M50/584); Manufacturing processes thereof · CPC title

• H01M50/609

  Arrangements or processes for filling with liquid, e.g. electrolytes · CPC title

• H01M50/40

  Separators; Membranes; Diaphragms; Spacing elements inside cells · CPC title

• H01M2/0242

  Electricity · mapped topic