CN109729640B - FPC board of battery package and battery package - Google Patents
FPC board of battery package and battery package Download PDFInfo
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- CN109729640B CN109729640B CN201811632806.7A CN201811632806A CN109729640B CN 109729640 B CN109729640 B CN 109729640B CN 201811632806 A CN201811632806 A CN 201811632806A CN 109729640 B CN109729640 B CN 109729640B
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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 invention provides a battery pack FPC board and a battery pack, wherein the battery pack FPC board comprises: the battery pack comprises a body, a first mounting part and a second mounting part, wherein the body is arranged on a module bracket in the battery pack; the first mounting part is arranged at the first end of the body; the second mounting part is arranged at the second end of the body, and the first mounting part and the second mounting part are arranged oppositely; wherein, all be provided with the mounting groove on first installation department, the second installation department, along the thickness direction of first installation department, second installation department, be connected with connecting portion between two lateral walls of mounting groove, connecting portion are spaced apart with the diapire of mounting groove, are provided with the nickel piece on the connecting portion. From this, through set up connecting portion in the mounting groove, can solve the influence to nickel piece welding part on the FPC board when electric core is heated and expands, can guarantee the reliability of FPC board work to can improve the security and the reliability of battery package, and, also can reduce the manufacturing material of FPC board, can reduce the manufacturing cost of FPC board.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to an FPC (flexible printed circuit) board of a battery pack and the battery pack with the FPC board of the battery pack.
Background
In order to improve the increasingly worsened environment, the heat tide of new energy automobiles is raised in the automobile industry, and hybrid automobiles and pure electric automobiles driven by an internal combustion engine and a power battery in a combined mode are taken as the mainstream at present in the new energy automobiles. Therefore, the power battery pack becomes a research focus of each vehicle enterprise, and the FPC (Flexible printed circuit Board) Board is used as an electrical component for collecting voltage and temperature in the battery module of the battery pack, and plays a very critical role in ensuring the normal work of the battery pack. Because the circuit on the FPC board is integrated, once a problem is found, the problem is difficult to be found out, the design of the FPC board is optimized, and the probability of the problem of the FPC board is reduced to the greatest extent. The design of FPC board can not guarantee that the welding performance of nickel piece and busbar on the FPC board is not influenced in the inflation process of electric core now.
In the related art, most of the existing FPC board designs do not consider the influence of the expansion of the battery cell on the performance of the FPC board, a small number of FPC board designs a bending structure, the influence of the expansion of the battery cell on the performance of the FPC board is reduced to a certain extent, but the problem cannot be completely solved, and the cost of the FPC board is increased due to the design.
Disclosure of Invention
In view of this, the present invention provides an FPC board for a battery pack to solve the problem of the influence on the welding position of the nickel sheet on the FPC board when the battery cell is thermally expanded.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an FPC board of a battery pack includes: the battery pack comprises a body, a first mounting part and a second mounting part, wherein the body is arranged on a module bracket in the battery pack; the first mounting part is arranged at the first end of the body and is arranged along the length direction of the battery pack; the second mounting part is arranged at the second end of the body, the second mounting part is arranged along the length direction of the battery pack, and the first mounting part and the second mounting part are arranged oppositely; wherein, first installation department all be provided with the mounting groove on the second installation department, follow first installation department in the thickness direction of second installation department, the mounting groove runs through first installation department the second installation department, be connected with connecting portion between two lateral walls of mounting groove, connecting portion with the diapire of mounting groove is spaced apart, be provided with the nickel piece on the connecting portion.
In some examples of the invention, the bottom wall of the mounting groove is provided with a protrusion, the protrusion is not overlapped with the projection of the nickel sheet in the width direction of the battery pack, one end of the connecting part opposite to the bottom wall of the mounting groove is provided with a first groove, the protrusion is opposite to the first groove, and the opening of the first groove faces the protrusion.
In some examples of the invention, the protrusions and the first grooves are multiple, and projections of the protrusions and the first grooves are symmetrically distributed on two sides of the nickel sheet in the width direction of the battery pack.
In some examples of the invention, the number of the protrusions and the first grooves is two, and in the width direction of the battery pack, the projection of one of the protrusions is located on the first side of the nickel sheet, and the projection of the other of the protrusions is located on the second side of the nickel sheet; in the width direction of the battery pack, the projection of one of the two first grooves is positioned on the first side of the nickel sheet, and the projection of the other of the two first grooves is positioned on the second side of the nickel sheet.
In some examples of the invention, the connection portion includes: the mounting groove comprises a first sub-connecting part and two second sub-connecting parts, wherein the first sub-connecting part and two side walls of the mounting groove are arranged at intervals, one of the second sub-connecting parts is connected between one side wall of the mounting groove and the first sub-connecting part, and the other of the second sub-connecting parts is connected between the other side wall of the mounting groove and the first sub-connecting part.
In some examples of the invention, the second sub-connecting portion is provided with a U-shaped groove, an opening of the U-shaped groove faces to the outer sides of the first mounting portion and the second mounting portion in the width direction of the battery pack, and a projection of the U-shaped groove is located on a first side of the first groove.
In some examples of the invention, the U-shaped grooves are multiple, and projections of the multiple U-shaped grooves are symmetrically distributed on first sides of the two first grooves in the width direction of the battery pack.
In some examples of the invention, the number of the U-shaped grooves is two, one of the two U-shaped grooves is disposed on a first side of one of the first grooves, and the other of the two U-shaped grooves is disposed on a first side of the other of the first grooves.
In some examples of the present invention, the mounting grooves may be provided at outermost ends of the first and second mounting parts in a width direction of the battery pack.
Compared with the prior art, the FPC board of the battery pack has the following advantages:
according to the FPC board of the battery pack, the connecting part is arranged in the mounting groove, so that the influence of the battery core on the nickel sheet welding position on the FPC board when the battery core is heated and expanded can be avoided, the working reliability of the FPC board can be ensured, the safety and the reliability of the battery pack can be improved, the manufacturing materials of the FPC board can be reduced, and the manufacturing cost of the FPC board can be reduced.
Another objective of the present invention is to provide a battery pack.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a battery pack comprises the FPC board of the battery pack.
The advantages of the battery pack and the FPC board of the battery pack are the same as those of the battery pack in the prior art, and are not described in detail herein.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of an FPC board according to an embodiment of the present invention;
fig. 2 is a side view of an FPC board according to an embodiment of the present invention;
fig. 3 is an assembly view of a mounting groove and a nickel plate on the FPC board according to the embodiment of the present invention.
Description of reference numerals:
an FPC board 10;
a body 1; a first mounting portion 3; a second mounting portion 4;
a mounting groove 5; a side wall 51; a bottom wall 52; a connecting portion 53; a projection 54; the first groove 55; the first sub-connection portion 56; the second sub-connection portion 57; a U-shaped groove 58;
a nickel plate 6.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 3, the FPC board 10 of the battery pack according to the embodiment of the present invention includes: a body 1, a first mounting portion 3 and a second mounting portion 4. The body 1 can set up the module support in the battery package, and first installation department 3 can set up in the first end of body 1, and first installation department 3 arranges along the length direction of battery package. The second mounting part 4 may be provided at a second end of the body 1, the second mounting part 4 being disposed along a length direction of the battery pack, and the first mounting part 3 being disposed opposite to the second mounting part 4.
All can be provided with mounting groove 5 on first installation department 3, the second installation department 4, along the thickness direction of first installation department 3, second installation department 4, mounting groove 5 can run through first installation department 3, second installation department 4, is connected with connecting portion 53 between two lateral walls 51 of mounting groove 5, and connecting portion 53 is spaced apart with the diapire 52 of mounting groove 5, is provided with nickel piece 6 on the connecting portion 53.
The FPC board 10 can be fixed in the battery module through a stand column on the module support, the nickel sheet 6 on the FPC board 10 can be jointed with the bus bar in a welding mode, and one end of the head of the body 1 is jointed with the low-voltage plug-in unit in a welding mode. When electric core because of the thermal expansion, the busbar that directly links to each other with electric core utmost point post can produce certain offset at X axle and Y axle, it is required to explain that X is to length and width direction that indicates battery module with Y, the nickel piece 6 that links to each other with electric core this moment can be drawn the removal, if according to traditional design, nickel piece 6 can be dragged, nickel piece 6 has the risk of deviating from FPC board 10, also can produce pulling of different degrees with busbar welding position department in nickel piece 6 in addition, make the welding position atress, there is the risk of desoldering.
This application is through setting up connecting portion 53 in mounting groove 5 and connecting portion 53 is spaced apart from the diapire 52 of mounting groove 5, can promote the pliability of nickel piece 6 with FPC board 10 junction, can make the elasticity increase of connecting portion 53 department to can avoid electric core busbar when the inflation at X axle and Y axle direction skew, also can prevent nickel piece 6 desoldering on FPC board 10, and then can to a great extent reduce FPC board 10's inefficacy probability.
From this, through set up connecting portion 53 in mounting groove 5, can solve the influence to nickel piece 6 welding part on FPC board 10 when electric core is heated and expands, can guarantee the reliability of FPC board 10 work to can improve the security and the reliability of battery package, and, also can reduce the manufacturing material of FPC board 10, can reduce the manufacturing cost of FPC board 10.
In some embodiments of the present invention, as shown in fig. 3, taking one connecting portion 53 on the first mounting portion 3 and the second mounting portion 4 as an example, the bottom wall 52 of the mounting groove 5 may be provided with a protrusion 54, the shape of the protrusion 54 may be circular arc, the radius of the protrusion 54 may be 0.5mm, the projection of the protrusion 54 and the nickel sheet 6 is not overlapped in the width direction of the battery pack, i.e., the front-back direction in fig. 3, one end of the connecting portion 53 opposite to the bottom wall 52 of the mounting groove 5 is provided with a first groove 55, the protrusion 54 is arranged opposite to the first groove 55, and the opening of the first groove 55 faces the protrusion 54, so that the protrusion 54 is prevented from contacting the connecting portion 53, and the connecting portion 53 and the protrusion 54 are prevented from interfering with each other.
In some embodiments of the present invention, as shown in fig. 3, the number of the protrusions 54 and the first grooves 55 may be multiple, the number of the protrusions 54 and the number of the first grooves 55 may be the same, and in the width direction of the battery pack, the projections of the protrusions 54 and the first grooves 55 are symmetrically distributed on two sides of the nickel sheet 6, so that the structures of the connection part 53 and the installation groove 5 are more symmetrical, and the flexibility of the connection part 53 may be improved.
In some embodiments of the present invention, as shown in fig. 3, the two protrusions 54 and the two first grooves 55 may be provided, and in the width direction of the battery pack, the projection of one protrusion 54 of the two protrusions 54 is located on the first side of the nickel plate 6, and the projection of the other protrusion 54 of the two protrusions 54 is located on the second side of the nickel plate 6, it should be explained that the first side of the nickel plate 6 is the left side in fig. 3, and the second side of the nickel plate 6 is the right side in fig. 3, so that the protrusions 54 are prevented from interfering with the connection portion 53 where the nickel plate 6 is provided, and the operational reliability of the nickel plate 6 can be ensured.
In some embodiments of the present invention, as shown in fig. 3, in the width direction of the battery pack, the projection of one 55 of the two first grooves 55 is located on the first side of the nickel plate 6, and the projection of the other 55 of the two first grooves 55 is located on the second side of the nickel plate 6, so that the first grooves 55 can be prevented from interfering with the nickel plate 6, and the connection reliability of the nickel plate 6 can be ensured.
In some embodiments of the present invention, as shown in fig. 3, the connection part 53 may include: the first sub-connection portion 56 and the two second sub-connection portions 57, the first sub-connection portion 56 is spaced apart from the two side walls 51 of the mounting groove 5, the two side walls 51 of the mounting groove 5 are the left side wall 51 and the right side wall 51 of the mounting groove 5, respectively, one second sub-connection portion 57 is connected between one side wall 51 of the mounting groove 5 and the first sub-connection portion 56, and the other second sub-connection portion 57 is connected between the other side wall 51 of the mounting groove 5 and the first sub-connection portion 56, wherein the nickel sheet 6 can be disposed on the first sub-connection portion 56, so that the first sub-connection portion 56 can be reliably connected in the mounting groove 5, the first sub-connection portion 56 can be prevented from falling off from the mounting groove 5, and the working reliability of the FPC board 10 can be.
In some embodiments of the present invention, as shown in fig. 3, the second sub-connection portion 57 may be provided with a U-shaped groove 58, an opening of the U-shaped groove 58 faces to the outer sides of the first and second installation portions 3 and 4 in the width direction of the battery pack, that is, the rear side in fig. 3, and a projection of the U-shaped groove 58 is located on the first side of the first groove 55, that is, the left side of the left first groove 55 in fig. 3, or the right side of the right first groove 55, wherein the opening width of the U-shaped groove 58 may be set to be 1mm, which can prevent the U-shaped groove 58 from interfering with the first groove 55, and can ensure the structural strength of the connection portion 53, so that the connection portion 53 can be prevented from being pulled apart when the battery cell expands.
In some embodiments of the present invention, as shown in fig. 3, a plurality of U-shaped grooves 58 may be provided, and in the width direction of the battery pack, projections of the plurality of U-shaped grooves 58 are symmetrically distributed on the first sides of the two first grooves 55, such an arrangement can further enhance flexibility of the connection portion 53, and can increase deformation amount of the connection portion 53, so as to better prevent the connection portion 53 from being broken, and further prevent the connection portions of the nickel sheet 6 and the FPC board 10, and the connection portions of the nickel sheet 6 and the bus bar from being cracked.
In some embodiments of the present invention, as shown in fig. 3, two U-shaped grooves 58 may be provided, one of the two U-shaped grooves 58 is provided on the first side of one first groove 55, and the other of the two U-shaped grooves 58 is provided on the first side of the other first groove 55, so that the number and the positions of the U-shaped grooves 58 can be more reasonable, the structure of the connecting portion 53 can be more symmetrical, and the consistency of the structures of the left side and the right side of the connecting portion 53 can be ensured.
In some embodiments of the present invention, as shown in fig. 3, in the width direction of the battery pack, the mounting groove 5 may be disposed at the outermost end of the first mounting portion 3 and the outermost end of the second mounting portion 4, which are the front end and the rear end in fig. 1, so that the arrangement position of the mounting groove 5 is more reasonable, the distance between the connecting portion 53 and the bus bar may be shortened, and the nickel sheet 6 may be more easily connected to the bus bar.
According to the battery pack of the embodiment of the invention, the FPC board 10 comprises the FPC board 10 of the embodiment, the FPC board 10 is arranged and installed in the battery pack, the FPC board 10 can solve the problem that the welding position of the nickel sheet 6 on the FPC board 10 is affected when a battery core is heated and expanded, the working reliability of the FPC board 10 can be ensured, the safety and the reliability of the battery pack can be improved, the manufacturing material of the FPC board 10 can be reduced, and the manufacturing cost of the FPC board 10 can be reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. An FPC board (10) of a battery pack, comprising:
the battery pack comprises a body (1), wherein the body (1) is arranged on a module bracket in the battery pack;
the first mounting part (3), the first mounting part (3) is arranged at the first end of the body (1), and the first mounting part (3) is arranged along the length direction of the battery pack;
the second mounting part (4), the second mounting part (4) is arranged at the second end of the body (1), the second mounting part (4) is arranged along the length direction of the battery pack, and the first mounting part (3) and the second mounting part (4) are arranged oppositely;
wherein, first installation department (3) all be provided with mounting groove (5) on second installation department (4), follow first installation department (3) on the thickness direction of second installation department (4), mounting groove (5) run through first installation department (3) second installation department (4), be connected with connecting portion (53) between two lateral walls (51) of mounting groove (5), connecting portion (53) with diapire (52) of mounting groove (5) are spaced apart, be provided with nickel piece (6) on connecting portion (53).
2. The FPC board (10) of a battery pack according to claim 1, wherein a bottom wall (52) of the mounting groove (5) is provided with a protrusion (54), the protrusion (54) does not coincide with a projection of the nickel plate (6) in a width direction of the battery pack, an end of the connecting portion (53) opposite to the bottom wall (52) of the mounting groove (5) is provided with a first groove (55), the protrusion (54) is disposed opposite to the first groove (55), and an opening of the first groove (55) faces the protrusion (54).
3. The FPC board (10) of a battery pack according to claim 2, wherein the protrusions (54) and the first grooves (55) are plural, and projections of the plural protrusions (54) and the plural first grooves (55) are symmetrically distributed on both sides of the nickel plate (6) in a width direction of the battery pack.
4. The FPC board (10) of a battery pack according to claim 3, wherein the protrusions (54) and the first grooves (55) are two, and in the width direction of the battery pack, a projection of one of the protrusions (54) of the two protrusions (54) is located on a first side of the nickel sheet (6), and a projection of the other protrusion (54) of the two protrusions (54) is located on a second side of the nickel sheet (6);
in the width direction of the battery pack, the projection of one first groove (55) in the two first grooves (55) is positioned on the first side of the nickel sheet (6), and the projection of the other first groove (55) in the two first grooves (55) is positioned on the second side of the nickel sheet (6).
5. The FPC board (10) of a battery pack according to claim 4, wherein the connection portion (53) includes: a first sub-connection part (56) and two second sub-connection parts (57), the first sub-connection part (56) being spaced apart from the two side walls (51) of the mounting groove (5), one of the second sub-connection parts (57) being connected between one side wall (51) of the mounting groove (5) and the first sub-connection part (56), the other of the second sub-connection parts (57) being connected between the other side wall (51) of the mounting groove (5) and the first sub-connection part (56).
6. The FPC board (10) of a battery pack according to claim 5, wherein the second sub-connection portion (57) is provided with a U-shaped groove (58), an opening of the U-shaped groove (58) faces the outer sides of the first and second mounting portions (3, 4) in the width direction of the battery pack, and a projection of the U-shaped groove (58) is located on a first side of the first groove (55).
7. The FPC board (10) of a battery pack according to claim 6, wherein the U-shaped grooves (58) are plural, and projections of the plural U-shaped grooves (58) are symmetrically distributed on first sides of the two first grooves (55) in a width direction of the battery pack.
8. The FPC board (10) of a battery pack according to claim 7, wherein the number of the U-shaped grooves (58) is two, one of the two U-shaped grooves (58) is disposed on a first side of one of the first grooves (55), and the other of the two U-shaped grooves (58) is disposed on a first side of the other of the first grooves (55).
9. The FPC board (10) for a battery pack according to claim 1, wherein the mounting groove (5) is provided at the outermost end of the first mounting portion (3) and the second mounting portion (4) in the width direction of the battery pack.
10. A battery pack characterized by comprising the FPC board (10) of the battery pack according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811632806.7A CN109729640B (en) | 2018-12-29 | 2018-12-29 | FPC board of battery package and battery package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811632806.7A CN109729640B (en) | 2018-12-29 | 2018-12-29 | FPC board of battery package and battery package |
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| Publication Number | Publication Date |
|---|---|
| CN109729640A CN109729640A (en) | 2019-05-07 |
| CN109729640B true CN109729640B (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811632806.7A Active CN109729640B (en) | 2018-12-29 | 2018-12-29 | FPC board of battery package and battery package |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208062147U (en) * | 2018-01-31 | 2018-11-06 | 长城汽车股份有限公司 | For the busbar assembly of battery modules, battery pack and electric vehicle |
| CN108767519A (en) * | 2018-06-28 | 2018-11-06 | 东莞市奕东电子有限公司 | A kind of power battery adopts pressure FPC components |
| CN208189693U (en) * | 2018-02-05 | 2018-12-04 | 江苏久兴源新能源科技有限公司 | Power battery module assembles nickel sheet structure |
-
2018
- 2018-12-29 CN CN201811632806.7A patent/CN109729640B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208062147U (en) * | 2018-01-31 | 2018-11-06 | 长城汽车股份有限公司 | For the busbar assembly of battery modules, battery pack and electric vehicle |
| CN208189693U (en) * | 2018-02-05 | 2018-12-04 | 江苏久兴源新能源科技有限公司 | Power battery module assembles nickel sheet structure |
| CN108767519A (en) * | 2018-06-28 | 2018-11-06 | 东莞市奕东电子有限公司 | A kind of power battery adopts pressure FPC components |
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| Publication number | Publication date |
|---|---|
| CN109729640A (en) | 2019-05-07 |
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Address after: No.8899 Xincheng Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: SVOLT Energy Technology Co.,Ltd. Address before: 213200 No. 168 Huacheng Middle Road, Jintan District, Suzhou City, Jiangsu Province Patentee before: SVOLT Energy Technology Co.,Ltd. |
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Address after: No.8899 Xincheng Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: SVOLT Energy Technology Co.,Ltd. Address before: No.8899 Xincheng Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee before: SVOLT Energy Technology Co.,Ltd. |