CN210136940U - Battery pack of electric automobile and electric automobile - Google Patents
Battery pack of electric automobile and electric automobile Download PDFInfo
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- CN210136940U CN210136940U CN201921156624.7U CN201921156624U CN210136940U CN 210136940 U CN210136940 U CN 210136940U CN 201921156624 U CN201921156624 U CN 201921156624U CN 210136940 U CN210136940 U CN 210136940U
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- electric automobile
- busbar
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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 provides an electric automobile battery pack and electric automobile, relates to electric automobile technical field, including electric core and set up in collection pencil and the busbar on the electric core and through the connecting piece connection, the connecting piece include with first connecting portion that the collection pencil is connected and with the second connecting portion that the busbar is connected, first connecting portion with the parallel and crisscross setting of second connecting portion, first connecting portion are close to the one end of second connecting portion with the second connecting portion are close to the one end of first connecting portion is passed through the buffering portion and is connected, but the tensile deformation of buffering portion atress. The electric automobile comprises the electric automobile battery pack. This electric automobile battery pack and electric automobile can effectively avoid connecting piece and busbar to take place to tear when battery core takes place to swell.
Description
Technical Field
The utility model relates to an electric automobile technical field particularly, relates to an electric automobile battery pack and electric automobile.
Background
With the continuous development of society, new energy is more and more widely used, and electric automobile has the advantages of low energy consumption, little pollution, low noise and the like as an important component for the popularization of new energy. The battery pack has become one of the most important parts of the electric vehicle as a power source of the electric vehicle. In order to improve the maintainability and the assembly convenience of the electric vehicle and the battery pack, the battery pack is generally composed of a plurality of battery modules and a corresponding electrical protection system.
Wherein, the sensor and the collection pencil of collecting monomer electricity core temperature and voltage information are distributing usually in the battery module. Generally, the collecting wire harness is arranged above a wire harness support plate, the wire harness support plate is of a straight plate frame structure, and the collecting wire is welded or bonded with the bus bar in a straight line through a nickel sheet (collecting sheet). However, in the use process of the battery module, after a plurality of times of charging and discharging, the battery core can bulge, and the nickel sheet and the busbar are subjected to large tensile force, so that the nickel sheet and the busbar are easily torn to cause failure.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electric automobile battery pack and electric automobile can effectively avoid connecting piece and busbar to take place to tear when electric core takes place to swell.
The embodiment of the utility model is realized like this:
an aspect of the embodiment of the utility model provides an electric automobile battery pack, including electric core and set up in collection pencil and the busbar that just connect through the connecting piece on the electric core, the connecting piece include with first connecting portion that the collection pencil is connected and with the second connecting portion that the busbar is connected, first connecting portion with the parallel and crisscross setting of second connecting portion, first connecting portion are close to the one end of second connecting portion with the second connecting portion are close to the one end of first connecting portion is passed through the buffering portion and is connected, but the tensile deformation of buffering portion atress.
Optionally, in the preferred embodiment of the present invention, the buffering portion is U-shaped, the first folding arm of the buffering portion is connected to the first connecting portion, the second folding arm of the buffering portion is connected to the second connecting portion, and the first folding arm and the second folding arm are stressed to stretch along the length direction of the first folding arm.
Optionally, in an embodiment of the preferred embodiment of the present invention, the battery further includes a wire harness support plate disposed on the electrical core, the collecting wire harness is disposed on the wire harness support plate, a first groove is disposed on the wire harness support plate, and the first groove is used for accommodating the buffer portion of the connecting member.
Optionally, in an embodiment of the present invention, the number of the electrical cores is plural, and plural electrical cores are arranged side by side to form a supporting surface, and the wire harness supporting plate is disposed on the supporting surface.
Optionally, in a preferred embodiment of the present invention, a second groove is further disposed on the wire harness support plate, and the bus bar is disposed in the second groove.
Optionally, in the preferred embodiment of the present invention, the power distribution device further includes a casing, the casing includes a cover plate, a bottom plate, two first side plates disposed oppositely and two second side plates disposed oppositely, the cover plate, the bottom plate, two first side plates and two second side plates surround to form a holding cavity, the holding cavity is used for holding the electrical core, the wire harness support plate, the collecting wire harness, the bus bar and the connecting member.
Optionally, in an embodiment of the present invention, the battery further includes two insulating plates, two of the insulating plates are parallel to the first side plates, and are respectively disposed between the battery cell and the two first side plates.
Optionally, in a preferred embodiment of the present invention, the connecting member is made of metal.
Optionally, in a preferred embodiment of the present invention, the connecting member is made of nickel.
The embodiment of the utility model provides an on the other hand provides an electric automobile, including foretell electric automobile battery pack.
The utility model discloses beneficial effect includes:
this electric automobile battery pack passes through the connecting piece and connects collection pencil and busbar, can effectively avoid connecting piece and busbar to take place to tear when battery core takes place to swell. Specifically, the connecting piece includes first connecting portion, second connecting portion and buffering portion, wherein, first connecting portion and second connecting portion are parallel to each other and are the setting of staggering, first connecting portion are connected with the collection pencil, the second connecting portion are connected with the busbar, the one end that first connecting portion is close to the second connecting portion is passed through the buffering portion with the one end that the second connecting portion is close to first connecting portion and is connected, buffering portion sets up along the line direction of first connecting portion with the second connecting portion (the direction that the battery core takes place the bulging easily promptly), and the deformation of can stretching when buffering portion atress. When battery core took place to swell, connecting piece and busbar can receive great pulling force, because the buffering portion can produce tensile deformation when the effect of power is being received, consequently, the buffering portion can reduce the pulling force that connecting piece and busbar received through the tensile deformation of self, provides cushioning effect for connecting piece and busbar to effectively avoid connecting piece and busbar to take place to tear.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an electric vehicle battery assembly provided in an embodiment of the present invention;
fig. 2 is an installation schematic diagram of the battery cell, the harness support plate, the collecting harness, the bus bar, and the connecting member provided in the embodiment of the present invention;
FIG. 3 is a schematic view of the structure of the connector of FIG. 2;
fig. 4 is a schematic structural diagram of a wire harness support plate provided in an embodiment of the present invention.
Icon: 100-an electric vehicle battery assembly; 1-electric core; 2, collecting the wiring harness; 3-a busbar; 4-a connector; 41-a first connection; 42-a second connection; 43-a buffer; 431-a first folding arm; 432-a second folding arm; 5-a wire harness support plate; 51-a first groove; 52-a second groove; 6-a shell; 61-a cover plate; 62-a bottom plate; 63-a first side panel; 64-a second side panel; 65-an insulating plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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, and it is obvious that the described embodiments are some, but not all, embodiments of the present 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 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: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" 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 internal to both elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 4, the present embodiment provides an electric vehicle battery assembly 100, which includes an electric core 1, and a collecting harness 2 and a bus bar 3 disposed on the electric core 1 and connected by a connecting member 4, wherein the connecting member 4 includes a first connecting portion 41 connected to the collecting harness 2 and a second connecting portion 42 connected to the bus bar 3, the first connecting portion 41 and the second connecting portion 42 are parallel and staggered, one end of the first connecting portion 41 close to the second connecting portion 42 is connected to one end of the second connecting portion 42 close to the first connecting portion 41 by a buffering portion 43, and the buffering portion 43 is stressed and can be deformed. Optionally, the material of the connecting member 4 is metal. In this embodiment, the material of the connecting member 4 is nickel.
It should be noted that, firstly, the collecting harness 2 and the bus bar 3 are respectively disposed on the electric core 1, and the extending direction of the collecting harness 2 is parallel to the extending direction of the bus bar 3. In electric automobile battery pack 100 use, after charging and discharging many times, the battery core 1 easily takes place to swell along the direction parallel with the extending direction of gathering pencil 2 (or the extending direction of busbar 3), gather pencil 2 this moment, connecting piece 4 and busbar 3 and all can receive the pulling force along the battery core 1 direction of swelling, lead to traditional "style of calligraphy" nickel piece and busbar 3 to take place to tear very easily, and then arouse electric automobile battery pack 100's inefficacy.
Secondly, the connecting piece 4 includes the first connecting portion 41 of being connected with the collection pencil 2 and the second connecting portion 42 of being connected with the busbar 3, first connecting portion 41 is parallel with second connecting portion 42 and crisscross setting, the one end that first connecting portion 41 is close to second connecting portion 42 is connected through buffer 43 with the one end that second connecting portion 42 is close to first connecting portion 41, buffer 43 and second connecting portion 42 form one and are approximately "Z" type structure's connecting piece 4 promptly, can produce tensile deformation when atress through buffer 43 and reduce the pulling force that connecting piece 4 and busbar 3 received, provide cushioning effect for connecting piece 4 and busbar 3, thereby effectively avoid connecting piece 4 and busbar 3 to take place to tear.
Thirdly, the extending direction of the first connecting portion 41 and the extending direction of the second connecting portion 42 are perpendicular to the extending direction of the collecting harness 2 (or the extending direction of the bus bar 3), the extending direction of the buffering portion 43 is perpendicular to the extending direction of the collecting harness 2 (or the extending direction of the bus bar 3), and preferably, the extending direction of the buffering portion 43 is parallel to the extending direction of the collecting harness 2 (or the extending direction of the bus bar 3).
This electric automobile battery pack 100 passes through connecting piece 4 and connects collection pencil 2 and busbar 3, can effectively avoid connecting piece 4 and busbar 3 to take place to tear when electric core 1 takes place to swell. Specifically, the connecting member 4 includes a first connecting portion 41, a second connecting portion 42 and a buffering portion 43, where the first connecting portion 41 and the second connecting portion 42 are parallel to each other and are arranged in a staggered manner, the first connecting portion 41 is connected with the collecting wire harness 2, the second connecting portion 42 is connected with the busbar 3, one end of the first connecting portion 41 close to the second connecting portion 42 is connected with one end of the second connecting portion 42 close to the first connecting portion 41 through the buffering portion 43, that is, the buffering portion 43 is arranged along a connecting line direction of the first connecting portion 41 and the second connecting portion 42 (i.e., a direction in which the battery cell 1 is easily swelled), and the buffering portion 43 is deformable when being stressed. When battery core 1 takes place to swell, connecting piece 4 and busbar 3 can receive great pulling force, because buffer 43 can produce tensile deformation when the effect of received force, consequently, buffer 43 can provide cushioning effect through the tensile deformation of self for connecting piece 4 and busbar 3, reduces the pulling force that connecting piece 4 and busbar 3 received to effectively avoid connecting piece 4 and busbar 3 to take place to tear.
The battery cell 1 includes an initial state in which swelling does not occur and a swollen state in which swelling occurs, and therefore, in order to reduce a floor area of the connecting member 4 when the battery cell 1 is in the initial state and to provide a buffer effect when the battery cell 1 is in the swollen state, specifically, in the present embodiment, the buffer portion 43 is in a U-shaped three-dimensional structure, the first folding arm 431 of the buffer portion 43 is connected to the first connecting portion 41, the second folding arm 432 of the buffer portion 43 is connected to the second connecting portion 42, and the first folding arm 431 and the second folding arm 432 can be subjected to tensile deformation along the length direction of the first folding arm 431.
Referring to fig. 1, fig. 2 and fig. 4, the battery assembly 100 of the electric vehicle further includes a wire harness support plate 5 disposed on the electric core 1, the wire harness support plate 5 is a frame structure, and the collecting wire harness 2 and the bus bar 3 are disposed on the wire harness support plate 5, respectively.
Referring to fig. 1 to 4, since the buffering portion 43 is designed to be a U-shaped three-dimensional structure, compared to a conventional "straight" nickel plate, the buffering portion 43 has a certain height in a direction perpendicular to the electric core 1 (or the collecting harness 2, or the bus bar 3), in this embodiment, the harness supporting plate 5 is further provided with a first groove 51, and the first groove 51 is used for accommodating the buffering portion 43 of the connecting member 4, so that the buffering portion 43 is disposed in the first groove 51, the collecting harness 2, the connecting member 4, and the bus bar 3 are located on the same plane as much as possible, and the connecting member 4 is prevented from protruding beyond a plane formed by the collecting harness 2 and the bus bar 3.
Referring to fig. 1 and fig. 2, in order to increase the electric capacity of the battery assembly 100 of the electric vehicle, in the present embodiment, the number of the battery cells 1 is multiple, and the multiple battery cells 1 are arranged in parallel to form a supporting surface, and the wire harness supporting plate 5 is disposed on the supporting surface.
Meanwhile, the battery cell 1 has positive and negative poles, so the acquisition wiring harness 2 and the bus bar 3 also have two groups, and the two groups of acquisition wiring harnesses 2 and the bus bar 3 are oppositely arranged on two sides of the wiring harness support plate 5 and respectively correspond to the positive and negative poles of the battery cell 1.
Specifically, in the present embodiment, a second groove 52 is further disposed at an edge position on the wire harness support plate 5, the bus bar 3 is disposed in the second groove 52, and the collecting wire harness 2 is disposed on the wire harness support plate 5 near the second groove 52.
Referring to fig. 1 specifically, in order to improve the maintainability and the assembly convenience of the electric vehicle and the battery pack, in this embodiment, the electric vehicle battery assembly 100 further includes a housing 6, the housing 6 includes a cover plate 61, a bottom plate 62, two first side plates 63 arranged oppositely, and two second side plates 64 arranged oppositely, the cover plate 61, the bottom plate 62, the two first side plates 63, and the two second side plates 64 enclose to form an accommodating cavity, and the accommodating cavity is used for accommodating the battery cell 1, the harness support plate 5, the collecting harness 2, the busbar 3, and the connecting member 4.
The electric vehicle battery assembly 100 further includes two insulation plates 65, the two insulation plates 65 are parallel to the two first side plates 63, and are respectively disposed between the electric core 1 and the two first side plates 63.
The application also provides an electric automobile. The electric vehicle provided by the embodiment comprises the electric vehicle battery assembly 100. Since the structure and the advantageous effects of the battery pack 100 for an electric vehicle have been described in detail in the foregoing embodiments, no further description is provided herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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. The utility model provides an electric automobile battery pack, its characterized in that, including electric core and set up in collection pencil and the busbar on the electric core and through the connecting piece connection, the connecting piece include with first connecting portion that the collection pencil is connected and with the second connecting portion that the busbar is connected, first connecting portion with the parallel and crisscross setting of second connecting portion, first connecting portion are close to the one end of second connecting portion with the second connecting portion are close to the one end of first connecting portion is passed through the buffering portion and is connected, but the tensile deformation of buffering portion atress.
2. The battery pack of claim 1, wherein the buffer portion is U-shaped, a first folding arm of the buffer portion is connected to the first connecting portion, a second folding arm of the buffer portion is connected to the second connecting portion, and the first folding arm and the second folding arm are stressed to stretch and deform along a length direction of the first folding arm.
3. The battery pack of claim 2, further comprising a harness support plate disposed on the electrical core, wherein the collecting harness is disposed on the harness support plate, and a first groove is disposed on the harness support plate and is configured to receive the buffer portion of the connecting member.
4. The battery pack of claim 3, wherein the number of the battery cells is multiple, and the multiple battery cells are arranged side by side to form a supporting surface, and the wire harness supporting plate is disposed on the supporting surface.
5. The battery pack of claim 4, wherein the wire harness support plate further comprises a second groove, and the bus bar is disposed in the second groove.
6. The battery pack of claim 5, further comprising a housing, wherein the housing includes a cover plate, a bottom plate, two first side plates disposed opposite to each other, and two second side plates disposed opposite to each other, and the cover plate, the bottom plate, the two first side plates, and the two second side plates surround to form an accommodating cavity, and the accommodating cavity is configured to accommodate the battery core, the harness support plate, the collecting harness, the bus bar, and the connecting member.
7. The battery pack of claim 6, further comprising two insulating plates, wherein the two insulating plates are parallel to the two first side plates and are respectively disposed between the battery cell and the two first side plates.
8. The battery pack of any one of claims 1-7, wherein the connector is made of metal.
9. The battery pack of claim 8, wherein the connector is made of nickel.
10. An electric vehicle characterized by comprising the electric vehicle battery pack according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921156624.7U CN210136940U (en) | 2019-07-19 | 2019-07-19 | Battery pack of electric automobile and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921156624.7U CN210136940U (en) | 2019-07-19 | 2019-07-19 | Battery pack of electric automobile and electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210136940U true CN210136940U (en) | 2020-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921156624.7U Active CN210136940U (en) | 2019-07-19 | 2019-07-19 | Battery pack of electric automobile and electric automobile |
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| Country | Link |
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| CN (1) | CN210136940U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112242592A (en) * | 2020-06-19 | 2021-01-19 | 中航锂电（洛阳）有限公司 | Battery module |
| CN113540702A (en) * | 2021-07-19 | 2021-10-22 | 江苏塔菲尔新能源科技股份有限公司 | Electricity core is gathered and monitoring device and battery module |
| CN115000600A (en) * | 2022-06-28 | 2022-09-02 | 一汽奔腾轿车有限公司 | Design method of large battery module based on square battery core and battery module |
-
2019
- 2019-07-19 CN CN201921156624.7U patent/CN210136940U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112242592A (en) * | 2020-06-19 | 2021-01-19 | 中航锂电（洛阳）有限公司 | Battery module |
| CN113540702A (en) * | 2021-07-19 | 2021-10-22 | 江苏塔菲尔新能源科技股份有限公司 | Electricity core is gathered and monitoring device and battery module |
| CN113540702B (en) * | 2021-07-19 | 2023-03-24 | 江苏正力新能电池技术有限公司 | Electricity core is gathered and monitoring device and battery module |
| CN115000600A (en) * | 2022-06-28 | 2022-09-02 | 一汽奔腾轿车有限公司 | Design method of large battery module based on square battery core and battery module |
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