CN214898754U - Battery module end cover structure - Google Patents
Battery module end cover structure Download PDFInfo
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- CN214898754U CN214898754U CN202121353992.8U CN202121353992U CN214898754U CN 214898754 U CN214898754 U CN 214898754U CN 202121353992 U CN202121353992 U CN 202121353992U CN 214898754 U CN214898754 U CN 214898754U
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- Prior art keywords
- exhaust
- battery module
- end cover
- exhaust hole
- wall
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- 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
Abstract
The utility model discloses a battery module end cover structure, which comprises a front end cover and a rear end cover; the front end cover is provided with a first exhaust hole which is obliquely arranged downwards from the inner wall of the front end cover to the outer wall, the inner wall of the front end cover is also provided with a first exhaust groove, the first exhaust groove is correspondingly communicated with the first exhaust hole, and the width of the first exhaust groove is greater than that of a copper bar in the battery module; the rear end cover is provided with a second exhaust hole which is obliquely and downwards arranged from the inner wall of the rear end cover to the outer wall, the inner wall of the rear end cover is also provided with a second exhaust groove, the second exhaust groove is correspondingly communicated with the second exhaust, and the width of the second exhaust groove is greater than the width of a copper bar in the battery module. The utility model has the advantages of, guaranteed that the gas in the battery module can in time discharge, improved battery module's security and reliability.
Description
Technical Field
The utility model relates to a battery module technical field specifically is a battery module end cover structure.
Background
At present, the global shortage of petroleum resources and the continuous deterioration of climate environment make the development of modern human society face a serious challenge, the development of new energy vehicles which save energy and have no waste discharge is highly valued by various countries, the new energy vehicles market develops rapidly, and the power battery module is used as the power source of the new energy vehicles, and is safe and reliable and is of great importance to the whole system. Along with the original higher requirement of the policy on the energy density, the development of the high-energy-density soft-package battery cell becomes a trend, and the reliability of the battery cell grouping mode, especially the module grouping mode of the soft-package battery cell, is more important.
The field of the electric passenger vehicle is widely applied to the ternary battery at present, and the specific energy density is high. However, the chemical properties of the ternary cell are unstable, and thermal runaway is more likely to occur compared with a lithium iron phosphate cell. After the ternary battery cell is out of control thermally, a large amount of energy can be accumulated inside the ternary battery cell to generate a large amount of gas. Especially inside the battery module that a plurality of electric cores are constituteed, the energy of thermal runaway gathering can be along with gaseous a large amount of productions and the product is more and more, and the copper bar in some battery modules shelters from the exhaust hole that blocks up the end cover even for the gaseous unable in time discharge that produces in the module, battery module can be because the energy accumulation can not obtain the release and lead to more serious consequences such as explosion, has reduced battery module's security and reliability.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in how to improve the security and the reliability of battery module.
In order to solve the technical problem, the utility model provides a following technical scheme:
a battery module end cover structure comprises a front end cover and a rear end cover.
Be equipped with at least a set of first exhaust hole on the front end housing, every first exhaust hole of group is equipped with a first exhaust hole at least, still be equipped with the first exhaust groove that corresponds with first exhaust hole quantity and position on the inner wall of front end housing, every first exhaust groove corresponds the intercommunication with first exhaust hole, the width in first exhaust groove is greater than the copper bar width in the battery module.
The rear end cover is provided with at least one group of second exhaust holes, each group of second exhaust holes is provided with at least one second exhaust hole, the inner wall of the rear end cover is further provided with second exhaust grooves corresponding to the number and the positions of the second exhaust holes, each second exhaust groove is correspondingly communicated with the corresponding second exhaust hole, and the width of each second exhaust groove is larger than the width of a copper bar in the battery module.
Because the width setting of first air discharge duct and second air discharge duct is greater than the copper bar width in the battery module, first air discharge duct and second air discharge duct can't be stopped up completely to the copper bar, and gas can be through the first air discharge duct and the second air discharge duct that do not stop up and the corresponding outside discharge through first exhaust hole and second exhaust hole, guarantees that the gas in the battery module can in time be discharged, improves the security and the reliability of battery module.
Preferably, the first exhaust holes are arranged in two groups and arranged side by side, and each group of first exhaust holes is provided with two first exhaust holes.
Preferably, the top both ends of front end housing are equipped with the mouth of drawing forth, draw forth the mouth corresponding with the first exhaust hole intercommunication of first row for gas in the battery module not only can be followed first exhaust hole and discharged, also can be followed the mouth of drawing forth and discharged.
Preferably, the first exhaust hole is obliquely downward from the inner wall of the front end cover to the outer wall, and the second exhaust hole is obliquely downward from the inner wall of the rear end cover to the outer wall.
Through the oblique downward setting of first exhaust hole by the outside wall of front end housing inner wall and the oblique downward setting of second exhaust hole by the outside wall of front end housing inner wall for first exhaust hole and second exhaust hole can automatic landing go out by the smog dust after the inside working of plastics of battery module etc. burn, prevent that the dust from blockking up first exhaust hole and second exhaust hole, guarantee that the gas in the battery module can in time discharge.
Preferably, the second exhaust holes are arranged in two groups and are arranged side by side, and each group of second exhaust holes is provided with two second exhaust holes.
Preferably, the front end cover both ends are equipped with first mounting hole, and the front end cover top is equipped with first hole for hoist.
Preferably, the two ends of the rear end cover are provided with second mounting holes, and the top of the rear end cover is provided with second hoisting holes.
Preferably, the flow passages of the first exhaust hole and the second exhaust hole are both in arc transition.
Preferably, the depth of the first exhaust groove and the second exhaust groove is greater than the thickness of the copper bars in the battery module.
Preferably, the width of the first vent hole and the second vent hole is not more than 8 mm.
Compared with the prior art, the beneficial effects of the utility model are that:
1. because the width setting of first air discharge duct and second air discharge duct is greater than the copper bar width in the battery module, first air discharge duct and second air discharge duct can't be stopped up completely to the copper bar, and gas can be through the first air discharge duct and the second air discharge duct that do not stop up and the corresponding outside discharge through first exhaust hole and second exhaust hole, guarantees that the gas in the battery module can in time be discharged, improves the security and the reliability of battery module.
2. Through drawing the first exhaust hole intercommunication that the mouth corresponds with first row for gas in the battery module not only can follow first exhaust hole and discharge, also can follow and draw the mouth and discharge.
3. Through the oblique downward setting of first exhaust hole by the outside wall of front end housing inner wall and the oblique downward setting of second exhaust hole by the outside wall of front end housing inner wall for first exhaust hole and second exhaust hole can automatic landing go out by the smog dust after the inside working of plastics of battery module etc. burn, prevent that the dust from blockking up first exhaust hole and second exhaust hole, guarantee that the gas in the battery module can in time discharge.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a front end cover according to an embodiment of the present invention;
fig. 3 is another schematic structural diagram of the front end cover according to the embodiment of the present invention;
fig. 4 is a schematic structural diagram of a rear end cap according to an embodiment of the present invention;
fig. 5 is another schematic structural diagram of a rear end cap according to an embodiment of the present invention;
fig. 6 is a cross-sectional view of a front end cover according to an embodiment of the present invention.
Detailed Description
In order to facilitate the understanding of the technical solutions of the present invention by those skilled in the art, the technical solutions of the present invention will now be further described with reference to the drawings attached to the specification.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1, the embodiment discloses a battery module end cover structure, which includes a front end cover 1 and a rear end cover 2, where the front end cover 1 and the rear end cover 2 are respectively fixed at two ends of a battery module 3.
Referring to fig. 2 and 3, at least one set of first exhaust holes 11 is disposed on the front end cover 1, each set of first exhaust holes 11 at least has one first exhaust hole 11, in this embodiment, two sets of first exhaust holes 11 are disposed side by side from top to bottom, and each set of first exhaust holes 11 has two first exhaust holes 11. First exhaust hole 11 is by the oblique downward setting of the outside wall of 1 inner wall of front end housing, still be equipped with the first exhaust groove 12 that corresponds with 11 quantity of first exhaust hole and position on the inner wall of front end housing 1, every first exhaust groove 12 corresponds the intercommunication with first exhaust 11, the width of first exhaust groove 12 is greater than the copper bar width in the battery module 3.
Referring to fig. 4 and 5, at least one set of second exhaust holes 21 is formed in the rear end cap 2, each set of second exhaust holes 21 has at least one second exhaust hole 21, in this embodiment, two sets of second exhaust holes 21 are formed in parallel from top to bottom, and each set of second exhaust holes 21 has two second exhaust holes 21. Second exhaust hole 21 is set up to the outer wall slant by 2 inner walls of rear end housing downwards, still be equipped with on the inner wall of rear end housing 2 with the second exhaust groove 22 that second exhaust hole 21 quantity and position correspond, every second exhaust groove 22 corresponds the intercommunication with second exhaust 22, the width of second exhaust groove 22 is greater than the copper bar width in the battery module 3.
Because the width setting of first exhaust duct 12 and second exhaust duct 22 is greater than the copper bar width in the battery module 3, first exhaust duct 12 and second exhaust duct 22 can't be stopped up completely to the copper bar, and gas can be through the exhaust duct that does not stop up and through the outside discharge of exhaust hole, guarantees that the gas in the battery module 3 can in time be discharged, improves battery module 3's security and reliability. And because first exhaust hole 11 is by the oblique decurrent setting of the 1 inner wall of front end housing and second exhaust hole 21 is by the oblique decurrent setting of the 1 inner wall of front end housing to the outer wall for first exhaust hole 11 and second exhaust hole 21 can automatic landing by the smog dust after the burning such as the inside working of plastics of battery module 3 go out, prevent that the dust from blockking up first exhaust hole 11 and second exhaust hole 21, guarantee that the gas in the battery module 3 can in time discharge.
Further, referring to fig. 6, two ends of the top of the front end cover 1 are provided with extraction ports 13, and the extraction ports 13 are correspondingly communicated with the first exhaust holes 11 in the first row, so that the gas in the battery module 3 can be exhausted from not only the first exhaust holes 11, but also the extraction ports 13.
Furthermore, first mounting holes 14 are formed in two ends of the front end cover 1, and first hoisting holes 15 are formed in the top of the front end cover 1; and second mounting holes 23 are formed in two ends of the rear end cover 2, and second hoisting holes 24 are formed in the top of the rear end cover 2.
Further, the exhaust runner of first exhaust hole 11 and second exhaust hole 21 is the circular arc transition, the width of first exhaust hole 11 and second exhaust hole 21 is not more than 8mm, prevents that personnel's finger from poking into inside battery module 3. The depth of the first exhaust groove 12 and the second exhaust groove 22 is larger than the thickness of the copper bars in the battery module 3.
Still further, first exhaust hole 11 and first exhaust groove 12 and second exhaust hole 21 and second exhaust groove 22 all correspond and set up in the position that is close to front end housing 1 and rear end housing both ends, reduce the influence to battery module extrusion performance.
The working process in the embodiment is as follows: respectively fixing a front end cover 1 and a rear end cover 2 at two ends of a battery module 3; when the energy that the inside thermal runaway of battery module 2 gathered up produces gas, its gas can be through the first exhaust groove 12 and the second exhaust groove 22 that do not block up and correspond through first exhaust hole 11 and second exhaust hole 12 outwards discharge, simultaneously because draw forth the first exhaust hole 11 intercommunication with first row that mouth 13 corresponds for the gas in the battery module 3 can also be followed and drawn forth mouth 13 and discharged, guarantee that the gas in the battery module 3 can in time discharge, improve the security and the reliability of battery module 3. And because first exhaust hole 11 is by the oblique decurrent setting of 1 inner wall of front end housing and second exhaust hole 21 is by the oblique decurrent setting of 1 inner wall of front end housing to the outer wall for first exhaust hole 11 and second exhaust hole 21 can automatic landing by the smog dust after the burning such as the inside working of plastics of battery module 3 go out, prevent that the dust from blockking up first exhaust hole 11 and second exhaust hole 21.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The above embodiments only show the embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and for those skilled in the art, a plurality of modifications and improvements can be made without departing from the concept of the present invention, and these modifications and improvements all belong to the protection scope of the present invention.
Claims (10)
1. The utility model provides a battery module end cover structure which characterized in that: comprises a front end cover and a rear end cover;
the front end cover is provided with at least one group of first exhaust holes, each group of first exhaust holes is provided with at least one first exhaust hole, the inner wall of the front end cover is also provided with first exhaust grooves corresponding to the number and the positions of the first exhaust holes, each first exhaust groove is correspondingly communicated with the first exhaust holes, and the width of each first exhaust groove is larger than the width of a copper bar in the battery module;
the rear end cover is provided with at least one group of second exhaust holes, each group of second exhaust holes is provided with at least one second exhaust hole, the inner wall of the rear end cover is further provided with second exhaust grooves corresponding to the number and the positions of the second exhaust holes, each second exhaust groove is correspondingly communicated with the corresponding second exhaust hole, and the width of each second exhaust groove is larger than the width of a copper bar in the battery module.
2. The battery module end cap structure of claim 1, wherein: first exhaust hole sets up to two sets of and sets up side by side, and every first exhaust hole of group is equipped with two first exhaust holes.
3. The battery module end cap structure of claim 2, wherein: the top both ends of front end housing are equipped with draws forth the mouth, draw out the first exhaust hole intercommunication that the mouth corresponds and first row.
4. The battery module end cap structure of claim 1, wherein: the first exhaust hole is obliquely and downwards formed from the inner wall of the front end cover to the outer wall, and the second exhaust hole is obliquely and downwards formed from the inner wall of the rear end cover to the outer wall.
5. The battery module end cap structure of claim 1, wherein: the second exhaust hole is set into two groups and arranged side by side, and each group of second exhaust hole is provided with two second exhaust holes.
6. The battery module end cap structure of claim 1, wherein: the front end cover both ends are equipped with first mounting hole, and the front end cover top is equipped with first hole for hoist.
7. The battery module end cap structure of claim 1, wherein: and second mounting holes are formed in two ends of the rear end cover, and second hoisting holes are formed in the top of the rear end cover.
8. The battery module end cap structure of claim 1, wherein: and the flow passages of the first exhaust hole and the second exhaust hole are in circular arc transition.
9. The battery module end cap structure of claim 1, wherein: the depth of the first exhaust groove and the second exhaust groove is larger than the thickness of a copper bar in the battery module.
10. The battery module end cap structure of claim 1, wherein: the width of the first exhaust hole and the second exhaust hole is not more than 8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121353992.8U CN214898754U (en) | 2021-06-17 | 2021-06-17 | Battery module end cover structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121353992.8U CN214898754U (en) | 2021-06-17 | 2021-06-17 | Battery module end cover structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214898754U true CN214898754U (en) | 2021-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121353992.8U Active CN214898754U (en) | 2021-06-17 | 2021-06-17 | Battery module end cover structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214898754U (en) |
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2021
- 2021-06-17 CN CN202121353992.8U patent/CN214898754U/en active Active
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