CN210403889U - Battery cell connecting assembly, module and power battery pack - Google Patents
Battery cell connecting assembly, module and power battery pack Download PDFInfo
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- CN210403889U CN210403889U CN201921652119.1U CN201921652119U CN210403889U CN 210403889 U CN210403889 U CN 210403889U CN 201921652119 U CN201921652119 U CN 201921652119U CN 210403889 U CN210403889 U CN 210403889U
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- mounting
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- film
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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 power battery wraps technical field, in particular to assembly, module and power battery package are connected to electric core. The battery cell connecting assembly comprises an installation film, and a bus bar and a circuit board which are respectively installed on two plate surfaces of the installation film, wherein the installation film comprises an opening, and the circuit board penetrates through the opening to be electrically connected with the bus bar. Through setting up the installation membrane for electric core connection assembly can be through installation membrane integrated busbar and circuit board, need not to set up traditional busbar support, simple structure, and the quality is lighter, and is with low costs.
Description
Technical Field
The utility model relates to a power battery wraps technical field, in particular to assembly, module and power battery package are connected to electric core.
Background
With the progress of science and technology, people have higher and higher requirements on power batteries. The module is used as a key component of the power battery pack, and has important research significance. The module comprises a busbar support, a busbar and a flexible circuit board, wherein the busbar and the flexible circuit board are integrated together through the busbar support, the flexible circuit board is arranged above the busbar support, the busbar is arranged below the busbar support, in addition, the module further comprises an electric core, a module end plate and an upper cover, the upper cover is connected with the busbar support of the electric core connection assembly through a clamping structure, the electric core is electrically connected with the busbar of the electric core connection assembly, and the module end plate is assembled with an installation part of the busbar support of the electric core connection assembly and an installation structure of the busbar of the electric core connection assembly.
However, the bus bar support is generally made of a plastic plate, which results in a cell connecting assembly obtained by assembling the bus bar support with the flexible circuit board, and the cell connecting assembly is heavy and high in production cost.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an electricity core connection assembly, module and power battery package to solve among the prior art because of electricity core connection assembly through the busbar support come the big, with high costs scheduling problem of weight that integrated busbar and flexible circuit board caused.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the battery cell connecting assembly is characterized by comprising a mounting film, and a bus bar and a circuit board which are respectively mounted on two plate surfaces of the mounting film, wherein the mounting film comprises an opening, and the circuit board penetrates through the opening to be electrically connected with the bus bar.
Optionally, the busbar includes a plurality of electric core welding points, and the installation membrane includes a plurality of mounting holes that set up with a plurality of electric core welding point one-to-one.
Optionally, the mounting film is rectangular and includes a first board surface and a second board surface that are arranged oppositely, along the width direction of the mounting film, the bus bar is distributed at two side portions of the first board surface, the circuit board is distributed at the middle portion of the second board surface, and the opening hole extends inwards from the mounting hole.
Optionally, the circuit board is attached to the second board surface through an upper attachment member, and/or the bus bar is attached to the first board surface through a lower attachment member.
Optionally, the mounting membrane is provided in at least one of the following forms:
the first form: the thickness of the mounting film is set to be 0.3 mm;
the second form: the mounting film comprises a PC film;
the third form: the installation membrane is set to be a flexible membrane, and the flexible membrane comprises a buffer hole capable of deforming under the action of external force.
Compared with the prior art, electric core connection assembly have following advantage:
through setting up the installation membrane for electric core connection assembly can be through installation membrane integrated busbar and circuit board, need not to set up traditional busbar support, simple structure, and the quality is lighter, and is with low costs.
Another object of the utility model is to provide a module to solve among the prior art module because of electric core connection assembly through the busbar support come the big, with high costs scheduling problem of weight that integrated busbar and flexible circuit board caused.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides a module, the module include the module body and electric core connect the assembly, wherein, the module body includes electric core and follows the length direction of electric core is installed respectively the first module end plate and the second module end plate of electric core both sides, the busbar lid is established the top of electric core and with the electricity of electric core is connected, the busbar includes the edge the length direction of installation membrane sets up respectively the anodal installation department and the negative pole installation department of busbar both sides, the circuit board includes the installation end, negative pole installation department and installation end assembly are in on the first module end plate, anodal installation department assembly is in on the second module end plate.
Optionally, the first module end plate includes the negative pole mount pad, the negative pole mount pad includes along first mounting structure and the second mounting structure that the width direction of electric core set gradually, first mounting structure sets up to assemble the negative pole installation department, the second mounting structure sets up to assemble the installation end.
Optionally, the busbar includes the joint hole, the installation membrane include with the joint hole corresponds the bayonet socket that sets up, the module is including covering upper cover on the circuit board, the upper cover includes first joint portion, first joint portion runs through in proper order bayonet socket and joint hole support the lower surface of busbar.
Optionally, the upper cover includes a second clamping portion capable of being clamped to the outer edge of the bus bar.
Compared with the prior art, the module and the battery cell connection assembly have the same advantages, and are not described in detail herein.
Another object of the utility model is to provide a power battery package to solve among the prior art power battery package because of electric core connection assembly through the busbar support come the big, with high costs scheduling problem of weight that integrated busbar and flexible circuit board caused.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a power battery pack comprises a shell and a module, wherein the module is assembled in the shell.
Compared with the prior art, the advantages of the power battery pack and the battery cell connection assembly are the same, and are not described herein again.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic structural diagram illustrating a cell connection assembly in a module according to an embodiment of the present invention assembled to an end plate of the module;
figure 2 is an exploded view of the cell connection assembly of the module of figure 1 assembled to an end plate of the module;
figure 3 is a top view of the cell connection assembly of the module of figure 1 assembled to an end plate of the module;
figure 4 is a schematic view of the cell connection assembly of the module of figure 3 at section a-a as it is assembled to the end plate of the module.
Description of reference numerals:
2. installing a film; 21. opening a hole; 22. mounting holes; 23. a buffer hole; 24. a bayonet; 3. a bus bar; 31. welding points of the battery core; 32. a positive electrode mounting part; 33. a negative electrode mounting part; 34. a clamping hole; 4. a circuit board; 41. an installation end; 42. a nickel sheet; 5. a negative electrode mounting base; 51. a first mounting structure; 52. a second mounting structure; 6. an upper cover; 61. a first clamping part; 62. a second clamping part; 63. and (7) mounting the plate.
Detailed Description
In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.
An aspect of the present invention provides an electrical core connection assembly, as shown in fig. 1-4, the electrical core connection assembly includes an installation film 2 and a busbar 3 and a circuit board 4 respectively installed on two surfaces of the installation film 2, the installation film 2 includes an opening 21, the circuit board 4 passes the opening 21 with the busbar 3 is electrically connected.
Through the technical scheme, the utility model provides an electricity core connection assembly, this electricity core connection assembly is through setting up installation membrane 2 for electricity core connection assembly can be through installation membrane 2 integrated busbar 3 and circuit board 4, for busbar 3 and circuit board 4 provide the supporting role, need not to set up the great busbar support of traditional thickness, has reduced the mould expense of traditional busbar support in process of production, moreover, installation membrane 2 thickness itself is thinner, the quality is lighter.
As shown in fig. 2, the busbar 3 includes a plurality of cell pads 31, and the mounting film 2 includes a plurality of mounting holes 22 provided in one-to-one correspondence with the plurality of cell pads 31 for mounting. When the electric core connection assembly is assembled on the electric core, the busbar cover is arranged on the electric core, the electric core welding point 31 of the busbar 3 is welded on the electric core in a welding mode to realize the electrical connection among a plurality of electric cores, and the installation film 2 is prevented from generating unnecessary loss such as high-temperature deformation when the busbar is assembled in a welding mode by arranging a plurality of installation holes 22 in the installation film 2 so as to transmit current, so that the integrity of the installation film is ensured, and the safety is good. The bus bars may be arranged in various reasonable forms, for example, the cell connection assembly includes a plurality of bus bars 3 as shown in fig. 2, the plurality of bus bars 3 can be conveniently and efficiently mounted on the same surface of the mounting film 2 at the same time, and the plurality of bus bars 3 may be divided into two rows arranged side by side with each other and extending in the linear direction, and the plurality of cell pads 31 may be correspondingly divided into two rows arranged side by side with each other and extending in the linear direction; the mounting holes may be provided in various possible forms, for example, circular holes.
Further, installation membrane 2 sets up to the rectangle and including relative first face and the second face that sets up, follows installation membrane 2's width direction, busbar 3 distributes the both sides portion of first face, circuit board 4 distributes the middle part of second face, and trompil 21 certainly mounting hole 22 extends inwards for installation membrane 2's shape is more regular, is favorable to standardizing the production parameter of installation membrane 2, the batch production of being convenient for. Wherein, circuit board 4 can set up to various reasonable forms, for example, set up to flexible circuit board (FPC), including circuit board body and nickel piece 42, the same face at installation membrane 2 is installed to the circuit board body, and the one end and the circuit board body electricity of nickel piece 42 are connected, and the other end of nickel piece 42 passes trompil 21 welding at busbar 3, has realized the electricity between circuit board 4 and the busbar 3 to in order to gather the electric core voltage and the electric core temperature information of module and transmit for Battery Management System (BMS).
In order to save installation space and enhance the installation strength of the cell connection assembly, the circuit board 4 is attached to the second board surface by an upper adhesive member, and/or the bus bar 3 is attached to the first board surface by a lower adhesive member. Wherein, it can set up to various reasonable forms to paste the piece with down, for example, adopts double faced adhesive tape, and is with low costs, and installation intensity is high, and occupation space is littleer.
As shown in fig. 2, the mounting film 2 is a flexible film, and the flexible film includes a buffer hole 23 that can deform under the action of external force, so that when the battery cell expands due to multiple charging and discharging operations and exerts an expansion effect on the battery cell connection assembly, the mounting film 2 of the battery cell connection assembly can deform properly under the external force exerted by the collision effect of the battery cell, thereby avoiding the damage of the battery cell connection assembly due to the breakage of the mounting film under the external force, improving the mounting strength of the battery cell connection assembly, prolonging the service life of the battery cell connection assembly, and being safe and reliable. Among them, the buffer holes 23 may be provided in various reasonable forms, for example, as shown in fig. 2, the buffer holes 23 are provided at positions corresponding to mounting gaps between two adjacent busbars 3 of the mounting film 2, or the buffer holes 23 are provided at positions corresponding to edges of a certain busbar 3, etc.
In order to comprehensively consider the use requirements of weight reduction, cost reduction, high strength and the like of the mounting membrane 2, the mounting membrane 2 comprises a PC membrane.
Under the prerequisite that satisfies the intensity demand of electricity core connection assembly, in order to further lighten the weight of installation membrane 2, the thickness of installation membrane 2 sets up to 0.3mm, replaces original thick busbar support through using the thinner installation membrane of thickness, has reduced the whole weight of electricity core connection assembly. Generally speaking, the traditional bus bar support adopts a plastic support, and the weight is 60-100g, and the weight of the mounting film in the scheme is about 1/10 of the traditional bus bar support, so that the overall weight of the cell connection assembly is effectively reduced.
The utility model discloses a second aspect provides a module, as shown in fig. 1-4, the module include the module body and the electricity core connect the assembly, wherein, the module body includes electric core and follows the length direction of electric core is installed respectively the first module end plate and the second module end plate of electric core both sides, 3 covers of busbar are established the top of electric core and with the electricity core electricity is connected, busbar 3 includes the edge the length direction of installation membrane 2 sets up respectively the anodal installation department 32 and the negative pole installation department 33 of 3 both sides of busbar, circuit board 4 includes installation end 41, negative pole installation department 33 and installation end 41 assemble on the first module end plate, anodal installation department 32 assembles on the second module end plate.
Through the technical scheme, the utility model provides a module, this module is through adopting the electric core connection assembly that is obtained by installing membrane 2 integrated busbar 3 and circuit board 4, need not to set up the traditional busbar support that thickness is great, simple structure, occupation space is still less, and installation membrane 2 thickness is thinner itself, the quality is lighter, with low costs; can also assemble on the second module end plate through the anodal installation department 32 with busbar 3 to and assemble the negative pole installation department 33 of busbar 3 and the erection end 41 of circuit board 4 on first module end plate, satisfy electric core connection assembly's assembly demand, realized the fixed mounting to electric core connection assembly, simple structure, it is firm to install.
In order to simplify the overall structure of the module and strengthen the installation strength of the cell connection assembly, the first module end plate comprises the negative pole mounting seat 5, the negative pole mounting seat 5 comprises a first mounting structure 51 and a second mounting structure 52 which are sequentially arranged along the width direction of the cell, the first mounting structure 51 is arranged to be capable of being assembled with the negative pole installation part 33, the second mounting structure 52 is arranged to be capable of being assembled with the mounting end 41, so that the circuit board 4 of the cell connection assembly can be firmly installed on the first module end plate, and the overall installation strength of the module is improved. The first mounting structure 51 may be configured in various reasonable forms, for example, a groove structure having a mounting hole, in which the negative mounting portion is accommodated, and a fastening member such as a bolt sequentially penetrates through the mounting hole of the negative mounting portion 33 and the mounting hole of the groove structure and is screwed on the first module end plate, so that the negative mounting portion of the bus bar is assembled on the first module end plate; the specific structure and mounting manner of the positive mounting part of the busbar can refer to the negative mounting part, and therefore, the detailed description is omitted. In addition, the second mounting structure 52 may be provided in various forms, such as a groove structure, and the mounting end 41 of the circuit board 4 may be engaged with the groove structure, so as to mount the circuit board on the first module end plate.
As shown in fig. 1 to 4, the busbar 3 includes a clamping hole 34, the mounting film 2 includes a bayonet 24 corresponding to the clamping hole 34, the module includes an upper cover 6 covering the circuit board 4, the upper cover 6 includes a first clamping portion 61, the first clamping portion 61 sequentially penetrates through the bayonet 24 and the clamping hole 34 and abuts against the lower surface of the busbar 3, by providing the upper cover 6, the protection requirement of the electrical core connection assembly is met, and the upper cover is provided with a clamping structure, which is beneficial to rapid detachment and installation; through being connected upper cover 6 and 3 direct buckles of busbar, be favorable to supplementary installation membrane 2 to carry out integrated installation to electric core connection assembly, improved electric core connection assembly's bulk strength. The first engaging portion 61 may be provided in various reasonable forms, for example, as a protruding structure capable of being assembled on the bus bar by abutting against the lower surface of the bus bar 3.
Further, the upper cover 6 includes a second clamping portion 62 capable of being clamped to the outer edge of the busbar 3, so that the installation strength of the upper cover 6 is improved, and the overall strength of the battery cell connection assembly is improved by the overall fixing effect of the upper cover 6 on the battery cell connection assembly. The first clamping portion 61 can be provided in various reasonable forms, for example, a protruding structure capable of being assembled on the bus bar by abutting against the lower edge of the bus bar 3; on this basis, upper cover 6 includes mounting panel 63, and mounting panel 63 sets up to can the joint in the groove structure that second mounting structure 52 formed and the lid is established on the installation end 41 of circuit board 4, is favorable to strengthening the installation intensity between circuit board and the first module end plate.
A third aspect of the present invention provides a power battery pack, comprising a housing and a module, wherein the module is assembled in the housing.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an electricity core connection assembly, its characterized in that, electricity core connection assembly is including installation membrane (2) and install respectively busbar (3) and circuit board (4) on two faces of installation membrane (2), installation membrane (2) are including trompil (21), circuit board (4) pass trompil (21) with busbar (3) electricity is connected.
2. The cell connection assembly of claim 1, wherein the busbar (3) comprises a plurality of cell pads (31), and the mounting film (2) comprises a plurality of mounting holes (22) arranged in a one-to-one correspondence with the plurality of cell pads (31).
3. The cell connection assembly according to claim 2, wherein the mounting film (2) is rectangular and comprises a first plate surface and a second plate surface which are oppositely arranged, the busbars (3) are distributed on two side portions of the first plate surface along the width direction of the mounting film (2), the circuit boards (4) are distributed on the middle portion of the second plate surface, and the openings (21) extend inwards from the mounting holes (22).
4. The cell connection assembly of claim 3, wherein the circuit board (4) is applied to the second surface by an upper adhesive member and/or the busbar (3) is applied to the first surface by a lower adhesive member.
5. The cell connection assembly according to any of claims 1 to 4, characterized in that the mounting film (2) is provided in the form of at least one of the following:
the first form: the thickness of the mounting film (2) is set to be 0.3 mm;
the second form: the mounting film (2) comprises a PC film;
the third form: the mounting film (2) is arranged to be a flexible film, and the flexible film comprises a buffer hole (23) capable of deforming under the action of external force.
6. A module, characterized in that the module comprises a module body and a cell connection assembly according to any one of claims 1-5, wherein the module body comprises a battery cell, a first module end plate and a second module end plate which are respectively arranged at two sides of the battery cell along the length direction of the battery cell, the busbar (3) is arranged above the battery cell and is electrically connected with the battery cell, the bus bar (3) comprises a positive electrode mounting part (32) and a negative electrode mounting part (33) which are respectively arranged at two sides of the bus bar (3) along the length direction of the mounting film (2), circuit board (4) are including erection end (41), negative pole installation department (33) and erection end (41) assemble on the first module end plate, anodal installation department (32) assembly is in on the second module end plate.
7. The module according to claim 6, characterized in that the first module end plate comprises a negative mounting seat (5), the negative mounting seat (5) comprising a first mounting structure (51) and a second mounting structure (52) arranged in sequence in the width direction of the cell, the first mounting structure (51) being arranged to enable the negative mounting section (33) to be assembled, the second mounting structure (52) being arranged to enable the mounting end (41) to be assembled.
8. A module according to claim 6 or 7, characterized in that the busbar (3) comprises a snap hole (34), the mounting film (2) comprises a bayonet (24) arranged in correspondence with the snap hole (34), the module comprises an upper cover (6) covering the circuit board (4), the upper cover (6) comprises a first snap portion (61), the first snap portion (61) penetrates the bayonet (24) and the snap hole (34) in sequence and abuts against the lower surface of the busbar (3).
9. Module according to claim 8, wherein the upper cover (6) comprises a second snap-in portion (62) which can snap in on an outer edge of the busbar (3).
10. A power battery pack, characterized in that the power battery pack comprises a housing and a module according to any one of claims 6-9, which is fitted in the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921652119.1U CN210403889U (en) | 2019-09-29 | 2019-09-29 | Battery cell connecting assembly, module and power battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921652119.1U CN210403889U (en) | 2019-09-29 | 2019-09-29 | Battery cell connecting assembly, module and power battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210403889U true CN210403889U (en) | 2020-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921652119.1U Active CN210403889U (en) | 2019-09-29 | 2019-09-29 | Battery cell connecting assembly, module and power battery pack |
Country Status (1)
| Country | Link |
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| CN (1) | CN210403889U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021078079A1 (en) * | 2019-10-21 | 2021-04-29 | 宁德时代新能源科技股份有限公司 | Connection assembly, battery module, battery pack and apparatus |
| CN114094271A (en) * | 2020-07-29 | 2022-02-25 | 郑州深澜动力科技有限公司 | Battery module |
| CN115882155A (en) * | 2023-03-08 | 2023-03-31 | 广汽埃安新能源汽车股份有限公司 | Wiring harness isolation plate and battery pack thereof |
| WO2023087228A1 (en) * | 2021-11-18 | 2023-05-25 | 微宏动力***（湖州）有限公司 | Multifunctional mounting bracket, battery mounting module, and battery pack |
-
2019
- 2019-09-29 CN CN201921652119.1U patent/CN210403889U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021078079A1 (en) * | 2019-10-21 | 2021-04-29 | 宁德时代新能源科技股份有限公司 | Connection assembly, battery module, battery pack and apparatus |
| CN114094271A (en) * | 2020-07-29 | 2022-02-25 | 郑州深澜动力科技有限公司 | Battery module |
| WO2023087228A1 (en) * | 2021-11-18 | 2023-05-25 | 微宏动力***（湖州）有限公司 | Multifunctional mounting bracket, battery mounting module, and battery pack |
| CN115882155A (en) * | 2023-03-08 | 2023-03-31 | 广汽埃安新能源汽车股份有限公司 | Wiring harness isolation plate and battery pack thereof |
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