Multifunctional high-voltage connector and battery product

Patent metadata

Field	Value
Publication number	US-11990694-B2
Application number	US-202318095944-A
Country	US
Kind code	B2
Filing date	Jan 11, 2023
Priority date	Aug 15, 2018
Publication date	May 21, 2024
Grant date	May 21, 2024

Abstract

The present disclosure provides a multifunctional high-voltage connector and a battery product, the multifunctional high-voltage connector comprises: an upper cover; a pedestal; a conductive connection structure; two mating terminals; and a harness assembly. The conductive connection structure is used to make the two mating terminals be connected in series, and the harness assembly is directly connected to one of the mating terminals. When the upper cover and the pedestal are assembled, the conductive connection structure is simultaneously in contact with the two mating terminals, thereby turning on the high-voltage circuit. When the battery product requires maintenance, the upper cover is directly detached from the base, thereby turning off the high-voltage circuit. The battery product can be electrically connected to an external device via the harness assembly. The multifunctional high-voltage connector integrates both a switch function and a high-voltage connection function, therefore the connection resistance is greatly reduced.

First claim

What is claimed is:

1. A multifunctional high-voltage connector, comprising:
an upper cover;
a pedestal detachably assembled with the upper cover;
a harness assembly fixedly mounted to the pedestal;
two mating terminals spaced apart from each other in a first direction of the multifunctional high-voltage connector, and each of the mating terminals being fixedly mounted to the pedestal; and
a conductive connection structure fixedly mounted to the upper cover;
the conductive connection structure being used to connect the two mating terminals in series, and the harness assembly being connected to a proximal one of the two mating terminals in the first direction;
the conductive connection structure comprising: a main body portion; and two conductive connection portions respectively positioned at both ends of the main body portion in the first direction, and each of the conductive connection portions being directly connected to a respective one of the two mating terminals;
the main body portion comprising a tube body having two openings formed at two ends of the tube body in the first direction, and each of the conductive connection portions sealing a corresponding one of the openings; and
the main body portion further comprising a conductive fusing body that is electrically connected to the harness assembly via the proximal one of the two mating terminals in the first direction.

2. The multifunctional high-voltage connector according to claim 1 , wherein the conductive connection structure is a one-piece structure, and each conductive connection portion directly protrudes from the main body portion in a second direction of the multifunctional high-voltage connector.

3. The multifunctional high-voltage connector according to claim 1 , wherein the conductive connection structure is a fuse.

4. The multifunctional high-voltage connector according to claim 1 , wherein
the upper cover comprises: an outer shell; an inner shell fixed inside the outer shell, and the inner shell is provided with an opening facing the outer shell in the second direction; and at least one insulation sheet, each insulation sheet is fixed to the inner shell;
each conductive connection portion and the main body portion of the conductive connection structure are accommodated in the inner shell via the opening of the inner shell, the insulation sheet isolates the conductive connection structure from the outer shell at the opening of the inner shell.

5. The multifunctional high-voltage connector according to claim 4 , wherein
the insulation sheet has: an isolating portion extending in a third direction of the multifunctional high-voltage connector; and a fixing portion positioned on one side of the isolating portion in the third direction and extending in the second direction;
the isolating portion of the insulation sheet isolates the conductive connection structure from the outer shell at the opening of the inner shell, and the fixing portion is fixed to the inner shell.

6. The multifunctional high-voltage connector according to claim 5 , wherein the insulation sheet further has: a plurality of supporting portions extending in the second direction and disposed opposite to the fixing portion, and the supporting portion is supported between the isolating portion and the outer shell.

7. The multifunctional high-voltage connector according to claim 5 , wherein
the fixing portion of the insulation sheet is provided as two in number, and the two fixing portions are respectively formed on both sides of the isolating portion in the third direction;
the insulation sheet is provided as one in number, and the isolating portion of the insulation sheet extends in the first direction and covers the whole surface of the entire conductive connection structure facing the outer shell; or
the insulation sheet is provided as two in number, and the two insulation sheets are spaced apart from each other in the first direction and respectively cover both ends of the conductive connection structure in the first direction.

8. The multifunctional high-voltage connector according to claim 5 , wherein
the fixing portion of the insulation sheet is provided as one in number;
the insulation sheet is provided as four in number and disposed in two pairs, the two pairs of insulation sheets are spaced apart from each other in the first direction;
the two insulation sheets of each pair are disposed facing each other in the third direction and respectively cover both ends of the conductive connection structure in the third direction.

9. A battery product, comprising a battery assembly, a box and a multifunctional high-voltage connector, wherein the multifunctional high-voltage connector comprises:
an upper cover;
a pedestal detachably assembled with the upper cover;
a harness assembly fixedly mounted to the pedestal;
two mating terminals spaced apart from each other in a first direction of the multifunctional high-voltage connector, and each of the mating terminals being fixedly mounted to the pedestal; and
a conductive connection structure fixedly mounted to the upper cover;
the conductive connection structure being used to connect the two mating terminals in series, and the harness assembly being connected to a proximal one of the two mating terminals in the first direction;
the conductive connection structure comprising: a main body portion; and two conductive connection portions respectively positioned at both ends of the main body portion in the first direction, and each of the conductive connection portions being directly connected to a respective one of the two mating terminals;
the main body portion comprising a tube body having two openings formed at two ends of the tube body in the first direction, and each of the conductive connection portions sealing a corresponding one of the openings; and
the main body portion further comprising a conductive fusing body that is electrically connected to the harness assembly via the proximal one of the two mating terminals in the first direction.

10. The battery product according to claim 9 , wherein the conductive connection structure is a one-piece structure, and each conductive connection portion directly protrudes from the main body portion in a second direction of the multifunctional high-voltage connector.

11. The battery product according to claim 9 , wherein the conductive connection structure is a fuse.

12. The battery product according to claim 9 , wherein
the upper cover comprises: an outer shell; an inner shell fixed inside the outer shell, and the inner shell is provided with an opening facing the outer shell in the second direction; and at least one insulation sheet, each insulation sheet is fixed to the inner shell;
each conductive connection portion and the main body portion of the conductive connection structure are accommodated in the inner shell via the opening of the inner shell, the insulation sheet isolates the conductive connection structure from the outer shell at the opening of the inner shell.

13. The battery product according to claim 12 , wherein
the insulation sheet has: an isolating portion extending in a third direction of the multifunctional high-voltage connector; and a fixing portion positioned on one side of the isolating portion in the third direction and extending in the second direction;
the isolating portion of the insulation sheet isolates the conductive connection structure from the outer shell at the opening of the inner shell, and the fixing portion is fixed to the inner shell.

14. The battery product according to claim 13 , wherein the insulation sheet further has: a plurality of s

Assignees

• Contemporary Amperex Technology Co Ltd

Inventors

• Li Jianwei
• Bao Cong
• Yang Mingping
• Chan Libing
• Zhou Linggang

Classifications

• H01R11/287 Primary

  Intermediate parts between battery post and cable end piece · CPC title

• H01M50/502

  Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing · CPC title

• H01M50/503

  characterised by the shape of the interconnectors · CPC title

• H01M50/51

  Connection only in series · CPC title

• H01M50/581

  in response to temperature · CPC title