Battery connection module and battery device

Patent metadata

Field	Value
Publication number	US-10991928-B2
Application number	US-201715816614-A
Country	US
Kind code	B2
Filing date	Nov 17, 2017
Priority date	Dec 19, 2016
Publication date	Apr 27, 2021
Grant date	Apr 27, 2021

Abstract

A battery connection module and a battery device are provided. The battery device comprises a battery box and a battery connection module. The battery connection module comprises a circuit board, a plurality of busbars and a covering mechanism. The plurality of busbars are provided to a bottom surface of the circuit board in two rows spaced apart from each other. Each busbar has a main body portion connecting with the circuit board and at least two electrode connecting portions. The covering mechanism is provided to the bottom surface of the circuit board and comprises a plurality of sealing units. Each sealing unit comprises a cover, two first sealing members and a second sealing member. The cover has two openings, the two openings are respectively sheathed on two corresponding electrode connecting portions which are positioned along the second direction and respectively belong to the two rows of the busbars, the two first sealing members are respectively positioned in the two openings to liquid-tight seal a gap between the cover and the corresponding electrode connecting portion, the second sealing member is positioned in the corresponding chamber to liquid-tight seal a gap between the cover and the box body.

First claim

What is claimed is:

1. A battery device, comprising:
a battery box having a box body and a plurality of battery cells, the box body having a plurality of spacing walls arranged along a first direction and spaced apart from each other to define a plurality of chambers, and the plurality of battery cells being respectively provided to the plurality of chambers, each battery cell comprising a battery liquid and electrodes; and
a battery connection module comprising:
a circuit board extending along the first direction and provided with circuit traces,
a plurality of busbars operatively associated with the circuit board in two rows spaced apart from each other and electrically connecting with the circuit traces, and each row being arranged along the first direction, each busbar having a main body portion connecting with a bottom surface of the circuit board and being wholly positioned below the bottom surface of the circuit board, each busbar having at least two electrode connecting portions protruding downwardly from the main body portion away from the bottom surface of the circuit board, the electrode connecting portions respectively connecting with the electrodes in different chambers so as to make the electrodes in the plurality of chambers connected in series, and
a covering mechanism operatively associated with the circuit board and comprising a plurality of sealing units arranged along the first direction, and the plurality of sealing units respectively corresponding to the plurality of chambers, each sealing unit comprising a cover, two first sealing members and a second sealing member, the cover extending along a second direction perpendicular to the first direction and having two openings arranged along the second direction, the two openings being respectively sheathed on two corresponding electrode connecting portions which are positioned along the second direction and respectively belong to the two rows of the busbars, the two first sealing members being respectively positioned in the two openings and each being interposed between the cover and the electrode connecting portion to liquid-tight seal a gap between the cover and the electrode connecting portion, the second sealing member being positioned in the corresponding chamber and being interposed between the cover and the box body to liquid-tight seal a gap between the cover and the box body, the two first sealing members and the second sealing member being wholly positioned below the bottom surface of the circuit board.

2. The battery device according to claim 1 , wherein each electrode connecting portion of each busbar exhibits as a protruding block.

3. The battery device according to claim 2 , wherein each first sealing member of each sealing unit is provided in form of gasket and is sheathed on an outer periphery of the electrode connecting portion.

4. The battery device according to claim 1 , wherein the cover of each sealing unit further has a base portion connecting with the circuit board and a plugging portion protruding from the base portion, and an outer periphery of the plugging portion is tapered inwardly relative to an outer periphery of the base portion, and the openings pass through the base portion and the plugging portion.

5. The battery device according to claim 4 , wherein the second sealing member of each sealing unit is provided in form of gasket and is sheathed on the outer periphery of the plugging portion.

6. The battery device according to claim 5 , wherein the plugging portion has two side protruding ribs extending along the second direction and positioned at two opposite sides and protruding toward the corresponding chamber, and each side protruding rib is formed with a latching channel extending along the second direction and adjacent to the base portion, a top portion of each spacing wall is formed with two latching edge portions respectively protruding toward two adjacent chambers to respectively enter into two corresponding latching channels and allow two corresponding side protruding ribs to respectively latch with and abut against the two latching edge portions.

7. The battery device according to claim 6 , wherein each side protruding rib is further formed with a latching groove spaced apart from the latching channel and away from the base portion relative to the latching channel and allowing the second sealing member to latch with the latching groove.

8. The battery device according to claim 1 , wherein the cover of each sealing unit further has a plurality of fixing posts, the circuit board and the plurality of busbars each have a corresponding fixing hole for passing through and fixing the corresponding fixing post.

9. The battery device according to claim 8 , wherein each busbar has two fixing holes, the cover of each sealing unit has two fixing posts which are diagonally provided to the cover and each pass through one fixing hole of two busbars respectively belonging to the two rows, and the two fixing holes of each busbar each are passed through by one fixing post of one cover of two adjacent covers.

10. The battery device according to claim 8 , wherein the plurality of fixing posts each are fixed and latched in the fixing hole by hot melt manner.

11. The battery device according to claim 1 , wherein the cover of each sealing unit is formed with a first liquid injecting hole which may be communicated with the chamber, the circuit board is formed with a plurality of second liquid injecting holes respectively corresponding to the first liquid injecting holes of the plurality of sealing units.

12. The battery device according to claim 1 , wherein the covers of the plurality of sealing units are separated from each other and each are independently provided to the circuit board.

13. A battery connection module, comprising:
a circuit board extending along a first direction and provided with circuit traces;
a plurality of busbars provided to a bottom surface of the circuit board in two rows spaced apart from each other and electrically connecting with the circuit traces, and each row being arranged along the first direction, each busbar having a main body portion connecting with the circuit board and at least two electrode connecting portions; and
a covering mechanism provided to the bottom surface of the circuit board and comprising a plurality of sealing units arranged along the first direction, each sealing unit comprising a cover, two first sealing members and a second sealing member, the cover extending along a second direction perpendicular to the first direction and having two openings arranged along the second direction, the two openings being respectively sheathed on two corresponding electrode connecting portions which are positioned along the second direction and respectively belong to the two rows of the busbars, the two first sealing members being respectively positioned in the two openings and each being interposed between the cover and the electrode connecting portion to liquid-tight seal a gap between the cover and the electrode connecting portion, the second sealing member being provided to an outer periphery of the cover,
wherein the cover of each sealing unit further has a plurality of fixing posts, the circuit board and the plurality of busbars each have a corresponding fixing hole for passing through and fixing the corresponding fixing post, and
wherein each busbar has two fixing holes, the cover of each sealing unit has two fixing posts which are diagonally provided to the cover and each pass through one fixing hole of two busbars respectively belonging to the two rows, and the two fixing holes of each busbar each are passed through by one fixing post of

Assignees

• Molex Llc

Inventors

• Lin Yong
• Zeng Shang Xiu
• Lim Kian Heng

Classifications

• H01M10/425 Primary

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

• H01M50/645

  Plugs · CPC title

• H01M50/278

  Organic material · CPC title

• H01M50/289

  characterised by spacing elements or positioning means within frames, racks or packs (spacing elements inside cells other than separators, membranes or diaphragms H01M50/471) · CPC title

• H01M50/522

  Inorganic material · CPC title