CN212517444U - Lithium ion battery pack and insulation protective cover suitable for lithium ion battery pack - Google Patents
Lithium ion battery pack and insulation protective cover suitable for lithium ion battery pack Download PDFInfo
- Publication number
- CN212517444U CN212517444U CN202021911875.4U CN202021911875U CN212517444U CN 212517444 U CN212517444 U CN 212517444U CN 202021911875 U CN202021911875 U CN 202021911875U CN 212517444 U CN212517444 U CN 212517444U
- Authority
- CN
- China
- Prior art keywords
- battery pack
- lithium ion
- ion battery
- cover
- top cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 35
- 230000001681 protective effect Effects 0.000 title claims abstract description 34
- 238000009413 insulation Methods 0.000 title claims description 31
- 239000004020 conductor Substances 0.000 claims abstract description 36
- 239000000178 monomer Substances 0.000 claims abstract description 9
- 230000017525 heat dissipation Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model relates to a lithium ion battery field discloses a lithium ion battery group and be applicable to lithium ion battery group's insulating visor. The lithium ion battery pack includes: the battery pack comprises a battery pack body and a conductor connecting piece, wherein the battery pack body is formed by connecting a plurality of battery monomers in series or in parallel or a combination of series connection and parallel connection; and the insulating protective covers are respectively fixed on the connection nodes of the conductor connecting piece and the electrodes of the battery cells, and the connection nodes respectively cover the lower parts of the insulating protective covers.
Description
Technical Field
The utility model relates to a lithium ion battery prepares the field, discloses a lithium ion battery group and be applicable to lithium ion battery group insulation visor.
Background
Along with the popularization of the global environmental protection idea, the new energy electric vehicle gradually enters the mass market, and how to improve the endurance mileage of the new energy vehicle becomes an industrial technical problem, wherein the new energy vehicle of the lithium battery is used as a power source, the lithium ion battery packaging technology is concerned with the safety performance of the subsequent PACK and the battery cell using process, and the function played in the new energy vehicle is very key.
The inventor of the invention finds that the copper bar leakage phenomenon exists after the positive and negative electrodes are connected in series and parallel, and the copper bar leakage phenomenon has great influence on the safety of the battery system and the safety of later-period maintenance personnel.
Disclosure of Invention
An object of the embodiment of the utility model is to provide a lithium ion battery group and be applicable to lithium ion battery group insulation visor, improve the protection of series-parallel connection node.
In a first aspect, an embodiment of the present invention provides a lithium ion battery pack, including:
the battery pack body is formed by connecting a plurality of battery monomers in series or in parallel or a combination of series connection and parallel connection,
the conductor connecting piece is connected between the electrodes of the two battery monomers and is used for connecting the battery monomers in series or in parallel;
and the insulating protective covers are respectively fixed on the connection nodes of the conductor connecting piece and the electrodes of the battery cells, and the connection nodes respectively cover the lower parts of the insulating protective covers.
Optionally, each conductor connecting piece is fixedly connected with the electrode through a bolt;
the insulating protective cover comprises a top cover protruding towards the top, a cavity is formed at the bottom of the top cover, an opening of the cavity faces downwards, an insulating sleeve is further arranged at the bottom of the top cover, and when the insulating protective cover covers the top of the bolt, the insulating sleeve is sleeved at the top of the bolt.
Optionally, an outlet recessed toward the top is provided at the bottom edge of the top cover, and the conductor connector extends from the outlet.
Optionally, a buckle connection portion is further disposed on the insulating protection cover, the buckle connection portion includes two ribs extending from the bottom of the top cover to the opening of the cavity, ends of the two ribs respectively exceed the opening of the cavity,
the tail ends of the two ribs are respectively provided with a protruding fastener, the two protruding fasteners are opposite, when the insulating protective cover covers the top of the bolt, the two protruding fasteners are fastened below two opposite edges of the conductor connecting piece, the distance between the two protruding fasteners is narrower than the width between the two opposite edges of the conductor connecting piece, and the two opposite edges of the conductor connecting piece are limited between the two protruding fasteners.
Optionally, in a direction from the bottom of the top cover to the protruding fastener, the space between the two ribs gradually becomes wider and narrower in a natural state.
Optionally, two through holes are further formed in the top of the top cover, and the two through holes are located between the two ribs.
Optionally, a heat dissipation hole is arranged on the side surface of the top cover.
Optionally, an electrode identification part is arranged on the top of the top cover.
Optionally, a horizontally extending edge is further horizontally extended along the bottom edge of the top cover, and when the insulating top cover covers the connection node, the horizontally extending edge covers the surface of the connection conductor.
Optionally, the insulating top cover is formed by integrally injecting plastic materials.
In a second aspect, the embodiment of the present invention provides an insulating protective cover suitable for lithium ion battery pack, the insulating protective cover includes to the bellied top cap in top the bottom of top cap forms a cavity, the opening of cavity is down the bottom of top cap still is equipped with insulation support.
Optionally, a top-recessed outlet is provided at the bottom edge of the top cover.
Optionally, the insulating protective cover is further provided with a buckle connection portion, the buckle connection portion includes two ribs extending from the bottom of the top cover to the opening of the cavity, ends of the two ribs exceed the opening of the cavity respectively, ends of the two ribs are provided with protruding fasteners respectively, and the protruding fasteners are opposite to each other.
Optionally, in a direction from the bottom of the top cover to the protruding fastener, in a natural state, a distance between inner side edges of the two ribs gradually becomes wider and narrower.
Optionally, two through holes are further formed in the top of the top cover, and the two through holes are located between the two ribs.
Optionally, a heat dissipation hole is arranged on the side surface of the top cover.
Optionally, an electrode identification part is arranged on the top of the top cover.
Optionally, a horizontally extending edge also extends horizontally along the bottom edge of the top cover.
Therefore, according to the technical scheme of the embodiment, the insulation protective covers are respectively arranged on the connection nodes of the conductor connecting pieces and the electrodes of the battery cells, and the connection nodes respectively cover the insulation protective covers so as to perform insulation protection on the connection nodes among the batteries, and improve the safety of the battery pack.
Drawings
Fig. 1 is a schematic structural diagram of a top surface of a lithium ion battery pack provided in embodiment 1 of the present invention;
FIG. 2 is a schematic view of the cross-sectional structure B-B of FIG. 1;
fig. 3 is a perspective view of the insulation protection cover provided in embodiment 1 of the present invention;
fig. 4 is a front view of the insulation protection cover according to embodiment 1 of the present invention;
fig. 5 is a left side view of the insulation protection cover according to embodiment 1 of the present invention;
fig. 6 is a right structural view of the insulation protection cover according to embodiment 1 of the present invention;
fig. 7 is a top view of the insulation protection cover according to embodiment 1 of the present invention;
fig. 8 is a bottom view of the insulation protection cover according to embodiment 1 of the present invention;
fig. 9 is a view of a connection structure between an insulation protection cover and a conductor connector according to embodiment 1 of the present invention.
Reference numerals:
1: a conductor connector; 2: a battery cell;
3: an insulating protective cover; 31: a top cover; 32: an insulating sleeve; 33: an outlet;
34: ribs; 35: a raised fastener; 36: a through hole; 37: heat dissipation holes;
38: an electrode identification part; 39: a horizontally extending edge; 4: and (4) bolts.
Detailed Description
The present invention will now be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions of the present invention are provided to explain the present invention without limiting the invention thereto.
Example 1:
see fig. 1-9.
The present embodiment provides a lithium ion battery pack, which mainly includes: the battery pack comprises a battery pack body, a conductor connecting piece 1 and an insulating protective cover 3. The battery pack body is composed of a plurality of battery monomers 2, and the conductor connecting piece 1 connects the electrodes of the battery monomers 2 according to a preset series-parallel connection structure of the battery pack to form an integral battery pack for supplying power to the outside.
The series-parallel connection mode of the battery packs can be series connection, parallel connection or a combination of series connection and parallel connection.
And the connection nodes of the electrodes of the conductor connecting pieces 1 and the battery cells 2 are respectively provided with an insulating protective cover 3, and the connection nodes are respectively covered under the insulating protective covers 3 so as to perform insulating protection on the connection nodes among the batteries and improve the safety of the battery pack.
As an illustration of the present embodiment, the present embodiment may, but is not limited to, adopt a copper bar as the conductor connector 1 of the present embodiment. Preferably but not limited to, bolts 4 are used to fasten each copper bar to each electrode.
The insulation protection cover 3 of this embodiment includes the top cap 31 protruding to the top, form a cavity in the bottom surface of top cap 31, the opening of cavity is down, insulation support 32 still is provided with insulation support 32 in the bottom of top cap 31, insulation support 32 is located the cavity, terminal and the opening of cavity are equal to or slightly surpass the opening or slightly be shorter than the opening, when the installation, overlap insulation support 32 at the top of the bolt 4 of fastening conductor connecting piece 1 and electrode, avoid bolt 4 to expose, and provide dampproofing dustproof protection for the connected node, avoid bolt 4 to drop.
At least one side of the bottom edge of the top cover 31 is provided with a wire outlet 33 recessed toward the top as an escape position for leading out the conductor connector 1, and when the insulating protective cover 3 covers the top of the bolt 4, the conductor connector 1 is led out from the wire outlet 33 at the lower edge of the insulating protective cover 3.
As an illustration of the present embodiment, a snap connection part extending from the bottom of the top cover 31 to the opening of the cavity is further provided on the insulation protection cover 3, and the end of the snap connection part exceeds the opening of the cavity. The buckle connection part comprises two ribs 34 extending from the bottom of the top cover 31 to the cavity opening, the bottom ends of the two ribs 34 are respectively provided with a convex fastener 35, the two convex fasteners 35 are opposite to each other and exceed the opening of the cavity, when the insulation protective cover 3 is pressed down, the two convex fasteners 35 are abutted against the two opposite edges of the conductor connecting part 1, the two opposite convex fasteners 35 are slightly elastically deformed outwards under the action of the interference force, the two opposite convex fasteners 35 slide to the lower part of the conductor connecting part 1, the action force of the conductor connecting part 1 on the convex fasteners 35 disappears at the moment, the buckle connection part is relieved or restored to a natural state by the elastic deformation, the distance between the two convex fasteners 35 is narrower than the width between the two opposite edges of the conductor connecting part 1 under the bottom surface of the conductor connecting part 1, so that the two opposite edges of the conductor connecting part 1 are limited between the two convex fasteners 35 of the two ribs 34, the mutual buckling between the two opposite edges of the insulating protective cover 3 and the conductor connecting piece 1 is realized, the insulating protective cover is not easy to fall off, the insulating protection of the series-parallel connection nodes of the battery pack is improved, and the connection stability and the connection reliability are improved.
As an illustration of the present embodiment, the distance between the two ribs 34 gradually narrows (in a natural state) along the direction from the top cover 31 to the protruding fastener 35 at the end thereof, the top cover 31 is further provided with two through holes 36, one of the two through holes 36 is located at one rib 34 side, the other is located at the other rib 34 side, and the two through holes 36 are located between the two ribs 34, so that when the protruding fastener 35 needs to be detached, the trip device is respectively inserted into the two through holes 36, and the trip device pushes open the two ribs 34 to increase the distance between the two ribs 34 to the extent that the protruding fastener 35 at the end of the rib 34 can be detached from the conductor connector 1, so that the insulating protective cover 3 can be conveniently taken out, and the detachment is convenient.
As an illustration of the present embodiment, a heat dissipation hole 37 may be further formed in the top cover 31. The heat radiating holes 37 are preferably, but not limited to, located at the side of the top cover 31, and are more advantageous for preventing dust from falling.
As an illustration of the present embodiment, an electrode mark portion 38 may be further designed on the top surface of the top cover 31, and the electrode mark portion 38 may be a film or a sticker marked with an electrode mark, or may be a raised or recessed electrode mark stamped on the top surface of the top cover 31.
As an illustration of the present embodiment, the bottom edge of the top cover 31 is further provided with horizontally extending sides 39 extending horizontally outward, each horizontally extending side 39 horizontally covers the surface of the connection node, the horizontally extending side 39 located on the outlet 33 is located on the upper edge of the outlet 33, and the connection conductor is led out from the outlet 33.
In this embodiment, the insulation protection cover 3 of this embodiment is preferably, but not limited to, formed by integrally injection molding a plastic material, so that the insulation protection cover 3 has better toughness and can be detached many times.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (18)
1. A lithium ion battery pack, comprising:
the battery pack body is formed by connecting a plurality of battery monomers in series or in parallel or a combination of series connection and parallel connection,
the conductor connecting piece is connected between the electrodes of the two battery monomers and is used for connecting the battery monomers in series or in parallel;
and the insulating protective covers are respectively fixed on the connection nodes of the conductor connecting piece and the electrodes of the battery cells, and the connection nodes respectively cover the lower parts of the insulating protective covers.
2. The lithium ion battery pack of claim 1,
each conductor connecting piece is fixedly connected with the electrode through bolts;
the insulating protective cover comprises a top cover protruding towards the top, a cavity is formed at the bottom of the top cover, an opening of the cavity faces downwards, an insulating sleeve is further arranged at the bottom of the top cover, and when the insulating protective cover covers the top of the bolt, the insulating sleeve is sleeved at the top of the bolt.
3. The lithium ion battery pack of claim 2,
and a wire outlet recessed towards the top is arranged at the bottom edge of the top cover, and the conductor connecting piece extends out of the wire outlet.
4. The lithium ion battery pack of claim 2,
the insulating protective cover is also provided with a buckle connecting part, the buckle connecting part comprises two ribs extending from the bottom of the top cover to the opening of the cavity, the tail ends of the two ribs respectively exceed the opening of the cavity,
the tail ends of the two ribs are respectively provided with a protruding fastener, the two protruding fasteners are opposite, when the insulating protective cover covers the top of the bolt, the two protruding fasteners are fastened below two opposite edges of the conductor connecting piece, the distance between the two protruding fasteners is narrower than the width between the two opposite edges of the conductor connecting piece, and the two opposite edges of the conductor connecting piece are limited between the two protruding fasteners.
5. The lithium ion battery pack of claim 4,
and in the direction from the bottom of the top cover to the raised fastener, the distance between the two ribs gradually becomes narrower from wide to narrow in a natural state.
6. The lithium ion battery pack of claim 4,
the top of top cap still sets up two through-holes, two the through-hole all is located two between the rib.
7. The lithium ion battery pack of claim 2,
and heat dissipation holes are formed in the side face of the top cover.
8. The lithium ion battery pack of claim 2,
and an electrode identification part is arranged at the top of the top cover.
9. The lithium ion battery pack of claim 2,
and a horizontally extending edge is further horizontally extended along the bottom edge of the top cover, and when the insulating protective cover covers the connecting node, the horizontally extending edge covers the surface of the connecting node.
10. The lithium ion battery pack of claim 1,
the insulating protective cover is formed by integrally injecting plastic materials.
11. The insulating protective cover is characterized by comprising a top cover protruding towards the top, a cavity is formed at the bottom of the top cover, the opening of the cavity faces downwards, and an insulating sleeve is further arranged at the bottom of the top cover.
12. The insulation protective cover for a lithium ion battery pack as claimed in claim 11, wherein a top recessed outlet is provided at the bottom edge of said top cover.
13. The insulation protection cover for a lithium ion battery pack according to claim 11,
still be provided with buckle connecting portion on the insulating protection lid, buckle connecting portion include certainly the bottom of top cap to the opening of cavity extends two the end of rib surpasss respectively the opening of cavity, two the end of rib is provided with protruding fastener respectively, two protruding fastener is relative.
14. The insulation protection cover for a lithium ion battery pack according to claim 13,
and in the direction from the bottom of the top cover to the raised fastener, the distance between the inner side edges of the two ribs gradually becomes narrower from wide to narrow in a natural state.
15. The insulation protection cover for a lithium ion battery pack according to claim 13,
the top of top cap still sets up two through-holes, two the through-hole all is located two between the rib.
16. The insulation protection cover for a lithium ion battery pack according to claim 11,
and heat dissipation holes are formed in the side face of the top cover.
17. The insulation protection cover for a lithium ion battery pack according to claim 11,
and an electrode identification part is arranged at the top of the top cover.
18. The insulation protection cover for a lithium ion battery pack according to claim 11,
a horizontally extending edge also extends horizontally along the bottom edge of the top cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021911875.4U CN212517444U (en) | 2020-09-03 | 2020-09-03 | Lithium ion battery pack and insulation protective cover suitable for lithium ion battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021911875.4U CN212517444U (en) | 2020-09-03 | 2020-09-03 | Lithium ion battery pack and insulation protective cover suitable for lithium ion battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212517444U true CN212517444U (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021911875.4U Expired - Fee Related CN212517444U (en) | 2020-09-03 | 2020-09-03 | Lithium ion battery pack and insulation protective cover suitable for lithium ion battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212517444U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023077735A1 (en) * | 2021-11-05 | 2023-05-11 | 宁德时代新能源科技股份有限公司 | Protective structure, battery pack and electric apparatus |
-
2020
- 2020-09-03 CN CN202021911875.4U patent/CN212517444U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023077735A1 (en) * | 2021-11-05 | 2023-05-11 | 宁德时代新能源科技股份有限公司 | Protective structure, battery pack and electric apparatus |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210209 |