CN209860048U - Battery module - Google Patents
Battery module Download PDFInfo
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- CN209860048U CN209860048U CN201920840660.9U CN201920840660U CN209860048U CN 209860048 U CN209860048 U CN 209860048U CN 201920840660 U CN201920840660 U CN 201920840660U CN 209860048 U CN209860048 U CN 209860048U
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- battery module
- linkage segment
- battery
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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
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a battery module, which comprises a plurality of battery cores and an upper cover plate, wherein the upper cover plate comprises a plurality of metal connecting sheets, and each battery core corresponds to one metal connecting sheet; every the metal connecting piece all includes first linkage segment, second linkage segment and the third linkage segment that connects gradually, first linkage segment is connected the positive electrode post of electricity core, the third linkage segment is connected the negative electrode post of electricity core, the second linkage segment includes the fusing section, the fusing section is compared first linkage segment is little with the cross section of second linkage segment, fuses the connection piece rapidly when making single electric core short circuit damage like this, breaks off and the connection of other electric cores in the battery module to make the battery module no longer because single electric core leads to whole battery module short circuit to generate heat or even explode when appearing the problem, not only make cost reduction, and improved the security of battery module widely.
Description
Technical Field
The utility model relates to the technical field of battery especially involves the battery module.
Background
With the development of new energy vehicles, power grid energy storage and other markets, the technical requirements for energy storage are higher and higher, and various batteries are developed, wherein lithium batteries are widely applied due to the characteristics of high energy density, low pollution, long cycle life, quick charging and the like, and in practical application, lithium batteries are usually assembled into a lithium battery module for use.
At present, in order to make a lithium battery module have a larger current, a plurality of battery cores are usually assembled in series or in parallel, but because a plurality of battery cores are assembled together through a same nickel plate, one of the battery cores in the battery module is extruded by a hard force, is punctured by a needle, is short-circuited and cannot be protected when generating heat, the whole group of batteries connected in series and in parallel can be simultaneously short-circuited and generate heat to cause explosion, and the use safety performance of a product cannot be guaranteed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a battery module aims at solving the lower technical problem of current battery module security.
The utility model provides a battery module, which comprises a plurality of battery cores and an upper cover plate, wherein the upper cover plate comprises a plurality of metal connecting sheets, and each battery core corresponds to one metal connecting sheet;
every the metal connecting piece all includes first linkage segment, second linkage segment and the third linkage segment that connects gradually, first linkage segment is connected the positive electrode post of electricity core, the third linkage segment is connected the negative electrode post of electricity core, the second linkage segment includes the fusing section, the fusing section is than the cross section of first linkage segment and second linkage segment is little.
Furthermore, a through hole is formed in the second connecting section of the metal connecting sheet, and the fusing sections are arranged on two sides of the through hole.
Further, the through holes are provided with two through holes, wherein one through hole is arranged at a position close to the first connecting section, and the other through hole is arranged at a position close to the third connecting section.
Further, the upper cover plate comprises a copper plate, the second connecting section of the metal connecting sheet comprises a protruding section, the horizontal line of the protruding section protrudes out of the first connecting section and the third connecting section, the protruding section is connected with the first connecting section and the second connecting section through slopes respectively, one side of the protruding section protruding outwards is connected with the copper plate, and the fusing section is located on the slopes between the first connecting section and the protruding section or/and the slopes between the second connecting section and the protruding section.
Further, the protruding section and the copper plate are connected through welding.
Further, the metal connecting piece is made of nickel.
Further, the battery module includes upper bracket and lower carriage, electric core fixed set up in the upper bracket with between the lower carriage, just the electrode column orientation on electric core top the upper bracket, the bottom of electric core support in the lower carriage.
Further, the lower support is provided with a plurality of fixed slots, the bottom of electricity core inlay in the fixed slot.
Further, the battery management system is electrically connected with the battery core and controls the battery core.
The utility model provides a battery module, metal connection piece that has the fusing section through the setting replaces the metal sheet among the prior art, the connection piece fuses rapidly when making single electric core short circuit damage, the disconnection is connected with other electric cores among the battery module, thereby make battery module no longer because single electric core receives hard extrusion, the acupuncture, the short circuit, lead to whole battery module short circuit to generate heat when generating heat and explode even, not only make the cost reduction, make simple process, and improved battery module's security widely.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a battery module according to the present invention;
FIG. 2 is a schematic structural view of an embodiment of a metal connecting sheet of the present invention;
fig. 3 is a schematic structural diagram of an embodiment of the upper cover plate of the present invention.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-3, the present invention provides a battery module, including a plurality of electric cores 110 and an upper cover plate 200, the upper cover plate 200 covers on the battery module 100, and the battery module 100 conducts electricity through the upper cover plate 200, wherein, a plurality of electric cores 110 connect in parallel to form a battery pack, and a plurality of battery packs connect in parallel to form the above-mentioned battery module.
Specifically, the upper cover plate 200 includes a plurality of metal connection pieces 210, each metal connection piece 210 is correspondingly connected to the positive electrode and the negative electrode of one battery cell 110, each metal connection piece 210 includes three sections, which are respectively named as a first connection section 211, a second connection section 212 and a third connection section 213, which are connected in sequence, wherein the first connection section 211 is connected to the positive electrode column of the battery cell 110, the third connection section 213 is connected to the negative electrode column of the battery cell 110, the second connection section 212 between the first connection section 211 and the third connection section 213 includes a fuse section 212-1, the cross section of the fuse section 212-1 is smaller than that of the first connection section 211 and the second connection section 212, so that when the metal connection piece 210 is powered on, since the fuse section 212-1 is smaller, the current passing in a unit time is larger, if the current is too large, the larger heat is generated in a short time, and when the heat reaches the melting point of the metal connection piece 210, the fusing section 212-1 is fused, and since each metal connecting piece 210 is connected to only one battery cell 110, when the fusing section 212-1 of one metal connecting piece 210 is fused, the battery cell 110 is disconnected from the other battery cells 110, so that the use of the other battery cells 110 connected in parallel to the battery cell 110 is not affected.
With battery module electricity core that technical personnel in the field know influence each other, an electricity core is overheated to lead to whole overheated short circuit explosion easily and compare, the utility model provides a scheme even if an electricity core damages and also can not lead to the use of whole battery module to reach explosion-proof purpose.
Referring to fig. 2, the metal connecting sheet 210 is integrally a long sheet, wherein, in order to facilitate connection with the electrode column of the battery cell 110, the first connecting section 211 and the third connecting section 213 are both circular sheets, and a welding preformed hole 240 is disposed at the center of the first connecting section 211 and the second connecting section 212, and the first connecting section 211 and the third connecting section 213 are welded to the electrode column of the battery cell 110 through the welding preformed hole 240, so that not only can the electrical connection effect be achieved, but also the metal connecting sheet is simple to set, and the installation and processing are convenient. The second connection section 212 is in a long strip shape and is located between the first connection section 211 and the third connection section 213, in this embodiment, the fusing section 212-1 is formed by disposing a through hole 220 in the second connection section 212, that is, a through hole 220 is disposed in the second connection section 212, the through hole 220 is in an oval shape, and a short axis of the oval shape faces the first connection section 211 and the third connection section 213, so two small pieces 221 are disposed on two sides of the through hole 220, the two small pieces 221 are the fusing section 212-1, when the current is too large, the heat rise easily fuses, the width of the metal connection piece 210 and the size of the through hole 220 can be adjusted according to the electric quantity and the current of the battery cell 110, and no limitation is made here.
Further, in order to further secure the safety, the through holes 220 are provided in two, wherein one through hole 220 is provided near the first connection section 211, and the other through hole is provided near the third connection section 213.
In another embodiment, the second connecting section 212 has two bilaterally symmetrical notches, and a metal sheet is disposed between the two notches, which is the fusing section 212-1, and similarly, two fusing sections 212-1 may be disposed at positions close to the first connecting section 211 and the second connecting section 212, respectively.
In this embodiment, referring to fig. 2 to 3, the upper cover plate 200 includes a copper plate 230, and the battery cells 110 are connected in parallel through the copper plate 230. The second connection section 212 of the metal connection piece 210 includes a convex section 212-2 and a slope, the horizontal line of the convex section 212-2 protrudes from the first connection section 211 and the third connection section 213, that is, the convex section 212-2, the first connection section 211 and the third connection section 213 form a step shape, and the outward protruding surface of the convex section 212-2 is connected to the copper plate 230, so that the battery cell 110 and the copper plate 230 can be electrically connected. And the convex section 212-2 and the first connecting section 211 and the third connecting section 213 are connected by a slope transition, wherein the fusing section 212-1 is located at the position of the slope transition, i.e. the fusing section 212-1 can be located at the slope between the convex section 212-2 and the first connecting section 211, or located at the slope between the convex section 212-2 and the third connecting section 213, or located at both slopes.
Preferably, the protruding surface of the protruding section 212-2 is welded to the copper plate 230, and the metal connecting plate 210 is made of nickel, that is, the metal connecting plate 210 is a nickel plate.
In an embodiment, referring to fig. 1, in order to further fix the battery module 100, the battery module 100 includes an upper bracket 120 and a lower bracket 130, the battery pack is fixed by the upper bracket 120 and the lower bracket 130, that is, the electrical core 110 is fixedly disposed between the upper bracket 120 and the lower bracket 130, an electrode pillar at a top end of the electrical core 110 faces the upper bracket 120, a bottom end of the electrical core 110 abuts against the lower bracket 130, and the upper bracket 120 and the lower bracket 130 are made of an insulating material, preferably made of plastic.
Wherein, the lower bracket 130 is provided with a plurality of fixed slots that are used for fixing and limiting, and the quantity of fixed slot can correspond with electric core 110, and fixed slot and electric core 110 adaptation, and inlay in the fixed slot in electric core 110's bottom, and then further fixed electric core 110.
In an embodiment, the battery module 100 further includes a battery management system 140 (BMS), the BMS is a system for monitoring and managing the battery module 100, and the BMS collects and calculates parameters such as voltage, current, temperature, and SOC to control a charging and discharging process of the battery cell, so as to protect the battery, and the battery management system 140 is disposed at the outer sides of the upper bracket 120 and the lower bracket 130 and connected to the battery cell 110.
To sum up, the utility model provides a battery module has the metal connecting piece 210 of fusing section 212-1 through the setting and replaces the metal sheet among the prior art for the connection piece of fusing rapidly when single electric core 110 short circuit damages, other electric core 110's in disconnection and the battery module 100 are connected, thereby make battery module 100 no longer because single electric core 110 receives the hard extrusion, the acupuncture, the short circuit, lead to whole battery module 100 short circuit to generate heat when generating heat and even explode, not only make cost reduction, make simple process, and improved battery module 100's security widely.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (9)
1. A battery module is characterized by comprising a plurality of battery cells and an upper cover plate, wherein the upper cover plate comprises a plurality of metal connecting sheets, and each battery cell is correspondingly connected with one metal connecting sheet;
every the metal connecting piece all includes first linkage segment, second linkage segment and the third linkage segment that connects gradually, first linkage segment is connected the positive electrode post of electricity core, the third linkage segment is connected the negative electrode post of electricity core, the second linkage segment includes the fusing section, the fusing section is than the cross section of first linkage segment and second linkage segment is little.
2. The battery module according to claim 1, wherein the second connection section of the metal connection sheet is provided with a through hole flanked by the fuse sections.
3. The battery module according to claim 2, wherein the through-holes are provided in two, one of the through-holes being provided at a position adjacent to the first connecting section, and the other of the through-holes being provided at a position adjacent to the third connecting section.
4. The battery module according to claim 1, wherein the upper cover plate comprises a copper plate, the second connecting section of the metal connecting sheet comprises a protruding section, the horizontal line of the protruding section protrudes out of the first connecting section and the third connecting section, the protruding section is respectively connected with the first connecting section and the second connecting section through a slope, the side, protruding outwards, of the protruding section is connected with the copper plate, and the fusing section is located on a slope between the first connecting section and the protruding section or/and a slope between the second connecting section and the protruding section.
5. The battery module according to claim 4, wherein the convex section and the copper plate are connected by welding.
6. The battery module according to any one of claims 1 to 5, wherein the metal tabs are made of nickel.
7. The battery module according to any one of claims 1 to 5, wherein the battery module comprises an upper support and a lower support, the battery core is fixedly disposed between the upper support and the lower support, an electrode column at the top end of the battery core faces the upper support, and the bottom end of the battery core abuts against the lower support.
8. The battery module of claim 7, wherein the lower frame is provided with a plurality of fixing slots, and the bottom end of the battery cell is embedded in the fixing slots.
9. The battery module of any one of claims 1-5, further comprising a battery management system electrically coupled to the cells and controlling the cells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920840660.9U CN209860048U (en) | 2019-06-03 | 2019-06-03 | Battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920840660.9U CN209860048U (en) | 2019-06-03 | 2019-06-03 | Battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209860048U true CN209860048U (en) | 2019-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920840660.9U Active CN209860048U (en) | 2019-06-03 | 2019-06-03 | Battery module |
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| Country | Link |
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| CN (1) | CN209860048U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113097653A (en) * | 2021-03-30 | 2021-07-09 | 北京海博思创科技股份有限公司 | Battery connection structure and battery pack |
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2019
- 2019-06-03 CN CN201920840660.9U patent/CN209860048U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113097653A (en) * | 2021-03-30 | 2021-07-09 | 北京海博思创科技股份有限公司 | Battery connection structure and battery pack |
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