CN214336862U - Bus bar and battery module using same - Google Patents
Bus bar and battery module using same Download PDFInfo
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- CN214336862U CN214336862U CN202120196464.XU CN202120196464U CN214336862U CN 214336862 U CN214336862 U CN 214336862U CN 202120196464 U CN202120196464 U CN 202120196464U CN 214336862 U CN214336862 U CN 214336862U
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- support plate
- conductive
- battery module
- connecting structures
- strip
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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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Abstract
The utility model relates to a conductive bar and a battery module using the same, the conductive bar is a bent plate structure comprising a first support plate and a second support plate, at least two electrode connecting structures are arranged on the first support plate, the at least two electrode connecting structures are arranged at intervals along the extending direction of the crease length of the conductive strip, used for connecting with the same electrodes of at least two single batteries so as to realize the installation of the conductive strips on the corresponding total electrodes of the battery module, the second support plate is provided with two conductive piece connecting structures, the conductive piece connecting structure is used for being connected with a conductive piece for realizing series connection of the two battery modules, the two conductive piece connecting structures are arranged at intervals along the extending direction of the length of the crease of the conductive strip and are positioned at two ends of the conductive strip, the conductive strip is provided with two conductive piece connecting structures, the conductive strip with one structure can be configured for the battery modules, and the production management cost and the assembly error risk are reduced.
Description
Technical Field
The utility model relates to a busbar and use battery module of this busbar.
Background
In the prior art, the arrangement form of parallel connection and series connection is adopted between the single batteries of the battery module in some battery boxes, for example, two parallel-four series modules are taken as an example, the battery module comprises eight single batteries, the eight single batteries are divided into four groups, each group comprises two single batteries, the two single batteries in each group are connected in parallel, then the four battery groups are connected in series, and thus, in the four groups of series-connected battery groups, the electrodes of the two battery groups at the head and the tail, which are not connected in series, form the total positive electrode of the battery module, and one electrode forms the total negative electrode of the battery module.
In practical application, in order to ensure that the battery pack can output more electric quantity, a plurality of battery modules are connected in series, specifically, a total positive conducting bar is connected to the total positive pole of a single battery module, a total negative conducting bar is connected to the total negative pole, and the total positive conducting bar of the battery module and the total negative conducting bar of another battery module are in conductive connection through a conductive piece during series connection.
Receive the restriction of structure around the conducting strip mounted position, the total positive conducting strip and the total negative conducting strip of each battery module are the conducting strip of two kinds of different structures, different material numbers will be established to two kinds of different conducting strips in the aspect of the storage, so not only lead to the material to maintain with high costs, the risk of compounding and assembly mistake has still been increased, in addition, if need the die sinking to produce the conducting strip, then need open two moulds to two kinds of conducting strips, manufacturing cost has been increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a busbar to it is high to need to be equipped with total positive busbar and total negative busbar of different structures to battery module among the prior art to solve leads to the production maintenance cost, easily appears assembling error's technical problem. An object of the utility model is also to provide a battery module of using above-mentioned busbar.
In order to achieve the above object, the utility model provides a technical scheme of busbar is:
a conducting strip is a bent plate structure comprising a first supporting plate and a second supporting plate, wherein the first supporting plate is provided with at least two electrode connecting structures which are arranged at intervals along the length extending direction of a connecting line of the first supporting plate and the second supporting plate and are used for being connected with the same electrodes of at least two single batteries so as to realize the installation of the conducting strip on the corresponding total electrode of a battery module; the second support plate is provided with two conductive piece connecting structures, the conductive piece connecting structures are used for being connected with conductive pieces for realizing the series connection of the two battery modules, and the two conductive piece connecting structures are arranged at two ends of the conductive strip at intervals along the length extending direction of the connecting line of the first support plate and the second support plate.
The beneficial effects are that: the second support plate of the conductive strip is provided with two conductive piece connecting structures which are distributed at two ends of the conductive strip, the conductive strip with the structure is respectively used as a total positive conductive strip and a total negative conductive strip to be fixed at the total positive pole and the total negative pole of the battery module, when the conductive piece is required to be connected on the total positive conductive strip, the two conductive piece connecting structures of the total positive conductive strip are properly connected with the conductive pieces, and similarly, when the conductive pieces are required to be connected with the total negative conductive strip, selecting proper connection structure on the two conductive parts of the total negative conductive bar to connect with the conductive parts, so, can only dispose the busbar of a structure to the battery module, reduce the material maintenance cost, eliminate compounding and wrong risk of assembly, even need the die sinking during production, also only need open one set of grinding apparatus can, reduced the manufacturing cost of busbar.
As a further improvement, the conductive strip is formed by bending, a connecting line of the first support plate and the second support plate is a crease, a notch is formed in the middle of the second support plate along the length extending direction of the crease, and the notch extends to the first support plate.
The beneficial effects are that: the middle of the first supporting plate is provided with a notch, and the notch extends to the first supporting plate, so that the bending forming difficulty of the second supporting plate is reduced.
As a further improvement, the first support plate is provided with a bending section opposite to the notch, and the electrode connecting structures on the first support plate are distributed on two sides of the bending section.
The beneficial effects are that: the bending sections are arranged, so that the deformability of the conductive strips can be improved, and the displacement between the single batteries can be buffered.
As a further improvement, the size of the notch is larger than that of the bending section, and the bending section corresponds to the middle of the notch.
The beneficial effects are that: the second support plate is convenient to bend and form.
As a further improvement, the conductive piece connecting structure is an output hole formed on the second support plate, and the output hole is a through hole penetrating through the plate thickness of the second support plate.
The beneficial effects are that: and the hole structure is adopted as a connecting structure of the conductive piece, so that the conductive strip and the conductive piece are conveniently connected and fixed.
The utility model discloses well battery module adopts following technical scheme:
a battery module comprises at least two pairs of battery packs which are arranged in series, wherein conductive strips are correspondingly fixed on a total positive electrode and a total negative electrode of the battery module, and each conductive strip is of a bent plate structure comprising a first support plate and a second support plate; the first support plate is provided with at least two electrode connecting structures which are arranged at intervals along the length extending direction of the connecting line of the first support plate and the second support plate and are used for being connected with the same electrodes of at least two single batteries so as to realize the installation of the conducting strips on the corresponding total electrodes of the battery module; the second support plate is provided with two conductive piece connecting structures, the conductive piece connecting structures are used for being connected with conductive pieces for realizing the series connection of the two battery modules, and the two conductive piece connecting structures are arranged at two ends of the conductive strip at intervals along the length extending direction of the connecting line of the first support plate and the second support plate.
The beneficial effects are that: the second support plate of the conductive strip is provided with two conductive piece connecting structures which are distributed at two ends of the conductive strip, the conductive strip with the structure is respectively used as a total positive conductive strip and a total negative conductive strip to be fixed at the total positive pole and the total negative pole of the battery module, when the conductive piece is required to be connected on the total positive conductive strip, the two conductive piece connecting structures of the total positive conductive strip are properly connected with the conductive pieces, and similarly, when the conductive pieces are required to be connected with the total negative conductive strip, selecting proper connection structure on the two conductive parts of the total negative conductive bar to connect with the conductive parts, so, can only dispose the busbar of a structure to the battery module, reduce the material maintenance cost, eliminate compounding and wrong risk of assembly, even need the die sinking during production, also only need open one set of grinding apparatus can, reduced the manufacturing cost of busbar.
As a further improvement, the conductive strip is formed by bending, a connecting line of the first support plate and the second support plate is a crease, a notch is formed in the middle of the second support plate along the length extending direction of the crease, and the notch extends to the first support plate.
The beneficial effects are that: the middle of the first supporting plate is provided with a notch, and the notch extends to the first supporting plate, so that the bending forming difficulty of the second supporting plate is reduced.
As a further improvement, the first support plate is provided with a bending section opposite to the notch, and the electrode connecting structures on the first support plate are distributed on two sides of the bending section.
The beneficial effects are that: the bending sections are arranged, so that the deformability of the conductive strips can be improved, and the displacement between the single batteries can be buffered.
As a further improvement, the size of the notch is larger than that of the bending section, and the bending section corresponds to the middle of the notch.
The beneficial effects are that: the second support plate is convenient to bend and form.
As a further improvement, the conductive piece connecting structure is an output hole formed on the second support plate, and the output hole is a through hole penetrating through the plate thickness of the second support plate.
The beneficial effects are that: and the hole structure is adopted as a connecting structure of the conductive piece, so that the conductive strip and the conductive piece are conveniently connected and fixed.
Drawings
Fig. 1 is a schematic structural diagram of a battery module in an embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a bus bar according to embodiment 1 of the battery module of the present invention;
description of reference numerals:
1. a single battery; 2. a first four-connection conductive strip; 3. a second four-connection conductive strip; 4. a third four-connection conductive strip; 5. a first support plate; 6. an electrode connection structure; 7. a notch; 8. a left support plate; 9. a right support plate; 10. an output aperture; 11. and (7) bending.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrase "comprising an … …" do not exclude the inclusion of such elements in processes or methods.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.
The present invention will be described in further detail with reference to examples.
The utility model provides a concrete embodiment 1 of battery module in this embodiment to the battery module is two and four strings of structures as the example right the utility model discloses well battery module's structure is introduced, specifically as follows:
as shown in fig. 1, the battery module includes eight single batteries 1, the eight single batteries 1 are divided into four groups, each group includes two single batteries, the positive and negative electrodes of the two single batteries 1 in each group are arranged oppositely and connected in parallel, and the positive and negative electrodes of the four groups of battery packs are arranged in a staggered manner and connected in series. Concretely, will four group battery groups from left to right denominate first group battery in proper order, the second group battery, third group battery and fourth group battery, the positive pole of first group battery and the negative pole of second group battery are through first four even busbar 2 connection, the positive pole of second group battery and the negative pole of third group battery are through second four even busbar 3 connection, the positive pole of third group battery and the negative pole of fourth group battery are through third four even busbar 4 connection, the group battery is established ties after accomplishing, the negative pole of first group battery constitutes the total negative pole of battery module, the positive pole of fourth group battery constitutes the total positive pole of battery module.
In order to facilitate the serial connection of a plurality of battery modules, a total positive conducting bar is fixed on the total positive pole of the battery modules, and a total negative conducting bar is fixed on the total negative pole of the battery modules. In order to reduce the material storehouse pipe degree of difficulty, reduce the wrong risk of dress, total positive busbar and total burden busbar are the busbar of the same structure. As shown in fig. 2, the conductive strips for fixing to the total positive and total negative electrodes are of a bent plate structure, and include a first support plate 5, and the first support plate 5 has two electrode connecting structures 6 thereon.
Because adopt corresponding electrically conductive piece to establish ties when establishing ties a plurality of battery module, in order to make things convenient for electrically conductive piece and the conducting strip to be connected, the conducting strip still has the second extension board of buckling for first extension board 5, in this embodiment, there is breach 7 in the middle part of the second extension board and fall into left extension board 8 and right extension board 9, all seted up outlet 10 on left extension board 8 and the right extension board 9, outlet 10 is for running through the through-hole that corresponds the extension board for fixed pencil or the copper bar as electrically conductive, in order to transmit current. The output hole 10 constitutes a conductive connection structure, so that the second support plate has two conductive connection structures.
The two electrode connecting structures 6 on the first support plate 5 and the two conductive element connecting structures on the second support plate are arranged at intervals along the length extending direction of the crease of the conductive element. The bus bar is connected with the total positive pole or the total negative pole of the battery module through the electrode connecting structure on the first support plate 5, and because the bus bar is provided with two conductive piece connecting structures which are positioned at two ends of the bus bar, only one bus bar needs to be configured for one battery module. That is, the bus bar with the same structure is connected to the total positive pole and the total negative pole of the battery module, and when being connected with the conductive piece, the conductive piece connecting structure of selecting a proper position on the bus bar is connected with the conductive piece.
Because the battery module receives in the use and shakes or other external factors influence, battery cell 1 can take place the displacement in the battery box, consequently, in order to improve the deformability of conducting strip, still process bending section 11 on the first support plate 5 of conducting strip, bending section 11 is between two electrode connection structure 6 to correspond with breach 7 on the second support plate. In this embodiment, in order to prevent that the setting of the section of bending 11 from influencing the deformation difficulty of the left extension board 8 and the right extension board 9, along the crease extending direction of the conducting strip, the size of the notch 7 is greater than the size of the section of bending 11.
The utility model provides a specific embodiment 2 of battery module, its difference with embodiment 1 mainly lies in: in example 1, the second plate has a notch and is divided into a left plate and a right plate, and in this example, the second plate has no notch. The second support plate is a whole plate with the same shape as the first support plate.
The utility model provides a specific embodiment 3 of battery module, its difference with embodiment 1 mainly lies in: in embodiment 1, the output holes of the left support plate and the right support plate form a conductive piece connecting structure of the conductive strip, and in this embodiment, the left support plate and the right support plate are not provided with any output hole any more, and when being connected to the conductive piece, the conductive piece is directly welded and fixed to the left support plate or the right support plate of the conductive strip by using a welding method.
The utility model provides a specific embodiment 4 of battery module, its difference with embodiment 1 mainly lies in: in embodiment 1, the conductive strip is formed by bending a plate, and in this embodiment, the first support plate and the second support plate are welded together.
The utility model discloses the embodiment of well busbar, the utility model discloses well busbar is the same with the structure of the busbar in each embodiment of above-mentioned battery module, no longer gives details here.
Finally, it should be noted that the above mentioned embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made without inventive effort to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An electrically conductive bar, comprising:
the conducting strip is of a bent plate structure comprising a first support plate (5) and a second support plate;
the first support plate (5) is provided with at least two electrode connecting structures (6), the at least two electrode connecting structures (6) are arranged at intervals along the length extending direction of the connecting line of the first support plate (5) and the second support plate and are used for being connected with the same electrodes of at least two single batteries (1) so as to realize the installation of conducting bars on the corresponding total electrodes of the battery module;
the second support plate is provided with two conductive piece connecting structures, the conductive piece connecting structures are used for being connected with conductive pieces for realizing the series connection of the two battery modules, and the two conductive piece connecting structures are arranged at two ends of the conductive strip at intervals along the length extending direction of the connecting line of the first support plate (5) and the second support plate.
2. The conductive strip according to claim 1, wherein the conductive strip is formed by bending, and a connecting line between the first support plate (5) and the second support plate is a fold, and the second support plate has a notch (7) in the middle along the length extension direction of the fold, and the notch (7) extends to the first support plate (5).
3. The conducting strip according to claim 2, wherein the first support plate (5) has a bending section (11) opposite to the gap (7), and the electrode connecting structures (6) on the first support plate (5) are distributed on two sides of the bending section (11).
4. The conductive strip according to claim 3, wherein the size of the gap (7) is larger than the size of the bent section (11) along the length extension direction of the fold, and the bent section (11) corresponds to the middle of the gap (7).
5. The conductor according to any of claims 1-4, wherein the conductor connection structure is an output hole (10) provided in the second strip, the output hole (10) being a through hole extending through the thickness of the second strip.
6. A battery module, comprising:
at least two pairs of battery packs which are arranged in series, wherein bus bars are correspondingly fixed on the total positive pole and the total negative pole of the battery module;
it is characterized in that the utility model is characterized in that,
the conducting strip is of a bent plate structure comprising a first supporting plate (5) and a second supporting plate;
the first support plate (5) is provided with at least two electrode connecting structures (6), the at least two electrode connecting structures (6) are arranged at intervals along the length extending direction of the connecting line of the first support plate (5) and the second support plate and are used for being connected with the same electrodes of at least two single batteries (1) so as to realize the installation of conducting bars on the corresponding total electrodes of the battery module;
the second support plate is provided with two conductive piece connecting structures, the conductive piece connecting structures are used for being connected with conductive pieces for realizing the series connection of the two battery modules, and the two conductive piece connecting structures are arranged at two ends of the conductive strip at intervals along the length extending direction of the connecting line of the first support plate (5) and the second support plate.
7. The battery module according to claim 6, wherein the conductive strips are formed by bending, the connecting line between the first support plate (5) and the second support plate is a fold, and the second support plate has a notch (7) in the middle along the length extension direction of the fold, and the notch (7) extends to the first support plate (5).
8. The battery module according to claim 7, wherein the first support plate (5) is provided with a bending section (11) opposite to the notch (7), and the electrode connecting structures (6) on the first support plate (5) are distributed on two sides of the bending section (11).
9. The battery module according to claim 8, wherein the notch (7) has a size larger than that of the bent section (11) in a direction along which the length of the fold extends, and the bent section (11) corresponds to a middle portion of the notch (7).
10. The battery module according to any one of claims 6 to 9, wherein the conductive member connecting structure is an output hole (10) formed in the second support plate, and the output hole (10) is a through hole penetrating the thickness of the second support plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120196464.XU CN214336862U (en) | 2021-01-25 | 2021-01-25 | Bus bar and battery module using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120196464.XU CN214336862U (en) | 2021-01-25 | 2021-01-25 | Bus bar and battery module using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214336862U true CN214336862U (en) | 2021-10-01 |
Family
ID=77906235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120196464.XU Active CN214336862U (en) | 2021-01-25 | 2021-01-25 | Bus bar and battery module using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214336862U (en) |
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2021
- 2021-01-25 CN CN202120196464.XU patent/CN214336862U/en active Active
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