CN111312942B - Power battery mounting structure and electric automobile - Google Patents
Power battery mounting structure and electric automobile Download PDFInfo
- Publication number
- CN111312942B CN111312942B CN201911219166.1A CN201911219166A CN111312942B CN 111312942 B CN111312942 B CN 111312942B CN 201911219166 A CN201911219166 A CN 201911219166A CN 111312942 B CN111312942 B CN 111312942B
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- mounting
- power battery
- hole
- fixing
- mounting structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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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
Abstract
The invention discloses a power battery mounting structure and an electric automobile, wherein the power battery mounting structure comprises a chassis framework, a battery assembly, a buffer piece and a fixing structure, the battery assembly comprises an encapsulation shell for encapsulating a power battery, the buffer piece is arranged on the encapsulation shell, and the fixing structure is used for fixing the buffer piece on the chassis framework. The buffer piece is fixed on the chassis framework through the fixing structure, so that the power battery and the chassis framework are connected through the buffer piece, the manufacturing precision of parts is reduced by arranging the buffer piece on the packaging shell, and the processing difficulty is reduced.
Description
Technical Field
The invention relates to the technical field of battery installation, in particular to a power battery installation structure and an electric automobile.
Background
The power battery of the electric automobile needs to be fixed at multiple points due to large weight, and is difficult to assemble and disassemble. The conventional power battery of the electric automobile is usually fixed on a vehicle body longitudinal beam by adopting six points and 12 bolts, and the power battery is rigidly connected with the automobile, so that the requirement on manufacturing precision is high, the manufacturing difficulty is high, and the cost is high.
Disclosure of Invention
The invention mainly aims to provide a power battery mounting structure and an automobile, and aims to solve the problems that the existing mounting mode has high requirements on machining precision and high manufacturing difficulty.
In order to achieve the above object, the present invention provides a power battery mounting structure, including:
a chassis frame;
the battery assembly comprises a packaging shell for packaging the power battery;
the buffer piece is arranged on the packaging shell; and the number of the first and second groups,
and the fixing structure is used for fixing the buffer piece to the chassis framework.
Optionally, a side surface of the package housing is a mounting surface;
a first through hole is formed in the buffer piece in a penetrating manner and faces away from the mounting surface;
the power battery mounting structure still includes coupling assembling, coupling assembling includes:
the mounting bracket is arranged on the mounting surface, and a second through hole is formed in the middle of the mounting bracket; and the number of the first and second groups,
the connecting rod, along dorsad the installation face direction extends the setting, the one end of connecting rod is located the second via hole, the other end is outstanding the second via hole, and insert and arrange in the first via hole.
Optionally, the fixing structure includes:
the fixing rod extends up and down, the upper end of the fixing rod is arranged on the lower end face of the chassis framework, and the lower end of the fixing rod is transversely bent to form an installation groove with an opening at one side with the chassis framework; and the number of the first and second groups,
the lock pin assembly comprises a lock pin movably mounted on the lower end face of the chassis framework along the direction opposite to the direction, the lock pin is arranged on the opening side of the mounting groove and used for being jointly fixed with the fixing rod to form the buffer piece.
Optionally, a first mounting hole is arranged on the lower end face of the chassis framework in a penetrating manner;
the lock pin assembly further comprises a containing seat arranged at the upper end of the chassis framework, a containing cavity is formed in the containing seat, and an opening communicated with the containing cavity is arranged on one side, opposite to the first mounting hole, of the containing seat in a penetrating manner;
the locking pin is arranged in the accommodating cavity, and the lower end of the locking pin protrudes out of the accommodating seat from an opening of the accommodating cavity and extends into the lower part of the chassis framework from the first mounting hole;
the lock pin assembly further comprises a return spring which is arranged in the accommodating cavity and is positioned between the lower wall surface of the accommodating seat and the upper end surface of the locking pin.
Optionally, a first mounting groove is formed in a side surface of the buffer facing the opening side of the mounting groove, and the fixing rod is at least partially embedded in the first mounting groove; and/or the presence of a gas in the gas,
the lateral surface of the side surface of the buffer piece, which faces away from the opening side of the mounting groove, is provided with a second mounting groove, and the locking pin is at least partially embedded into the second mounting groove.
Optionally, one side surface of the chassis framework is a mounting side surface;
the fixing structure comprises a fixing plate, the upper end of the fixing plate is fixedly mounted to the mounting side face, and the lower end of the fixing plate is provided with a second mounting hole;
the buffer member is mounted in the second mounting hole.
Optionally, in a direction away from the package housing, the buffer member is arranged in a step shape to form a first step surface away from the package housing;
along dorsad in the direction of encapsulation casing, the second mounting hole corresponds the bolster is the step setting in order to form an orientation the second step face of encapsulation casing, the second step face with first step face supports tight setting.
Optionally, a positioning pin is convexly arranged on the mounting side surface, a positioning hole corresponding to the positioning pin is arranged on the fixing plate, and the positioning pin is arranged in the positioning hole; and/or the presence of a gas in the gas,
the mounting side surface is provided with a threaded hole in a penetrating mode, the fixing plate is provided with a connecting hole corresponding to the threaded hole, the fixing structure further comprises a fastening bolt, and the threaded portion of the fastening bolt penetrates through the connecting hole and is installed in the threaded hole in a threaded mode.
Optionally, the buffer members and the fixing structures are in one-to-one correspondence to form fixing groups, and the fixing groups are provided with a plurality of fixing groups.
The invention also provides an electric automobile which comprises the power battery mounting structure. The power battery mounting structure includes:
a chassis frame;
the battery assembly comprises a packaging shell for packaging the power battery;
the buffer piece is arranged on the packaging shell; and the number of the first and second groups,
and the fixing structure is used for fixing the buffer piece to the chassis framework.
According to the technical scheme provided by the invention, the buffer piece is fixed on the chassis framework through the fixing structure, so that the power battery is connected with the chassis framework through the buffer piece, and the buffer piece is arranged on the packaging shell, so that the manufacturing precision of parts is reduced, and the processing difficulty is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic perspective view of an embodiment of a power battery mounting structure provided in the present invention;
FIG. 2 is an enlarged schematic view of detail A of FIG. 1;
FIG. 3 is a perspective view of the connection assembly of FIG. 1;
FIG. 4 is a perspective view of one embodiment of the fastening structure of FIG. 1;
FIG. 5 is a schematic cross-sectional view taken along line B-B of FIG. 4;
FIG. 6 is a perspective view of the buffer member of FIG. 4;
fig. 7 is a schematic perspective view of another embodiment of a power battery mounting structure provided in the present invention;
fig. 8 is a perspective view of the fixing plate of fig. 7;
fig. 9 is a perspective view of the buffer member of fig. 7.
The reference numbers illustrate:
the objects, features, and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The power battery of the electric automobile needs to be fixed at multiple points due to large weight, and is difficult to assemble and disassemble. The conventional power battery of the electric automobile is usually fixed on a vehicle body longitudinal beam by adopting six points and 12 bolts, and the power battery is rigidly connected with the automobile, so that the requirement on manufacturing precision is high, the manufacturing difficulty is high, and the cost is high.
In view of this, the present invention provides a power battery mounting structure and an electric vehicle, where the electric vehicle includes the power battery mounting structure, and as long as the electric vehicle includes the power battery mounting structure, all of the aspects of the present invention pertain to the electric vehicle, fig. 1 to 6 are an embodiment of the power battery mounting structure provided by the present invention, and fig. 7 to 9 are another embodiment of the power battery mounting structure provided by the present invention.
Referring to fig. 1 to 2, the power battery mounting structure 100 includes a chassis frame 1, a battery assembly 2, a buffering member 3 and a fixing structure 4, wherein the battery assembly 2 includes an encapsulating housing 21 for encapsulating a power battery, the buffering member 3 is disposed in the encapsulating housing 21, and the fixing structure 4 is used to fix the buffering member 3 to the chassis frame 1.
In the technical scheme provided by the invention, the buffer part 3 is fixed on the chassis framework 1 through the fixing structure 4, so that the power battery is connected with the chassis framework 1 through the buffer part 3, and the buffer part 3 is arranged on the packaging shell 21, so that the manufacturing precision of parts is reduced, and the processing difficulty is reduced.
It should be noted that the mounting bracket 51 and the package housing 21 may be fixedly connected by welding, adhering, and the like, which will not be described in detail herein.
Further, interference fit between the buffer member 3 and the connecting rod 52 ensures the connection and fastening between the buffer member 3 and the connecting rod 52, and prevents the power battery from being instable due to the fact that the buffer member 3 slides down in the using process.
In an embodiment of the present invention, referring to fig. 4, the fixing structure 4 includes a fixing rod 41 and a locking pin assembly 42, the fixing rod 41 is disposed to extend in an up-down direction, an upper end of the fixing rod 41 is disposed on a lower end surface of the chassis frame 1, a lower end of the fixing rod 41 is bent in a transverse direction to form an installation groove with an opening on one side with the chassis frame 1, the locking pin assembly 42 includes a locking pin 421 movably installed along a lower end surface facing away from the chassis frame 1, and the locking pin 421 is disposed on an opening side of the installation groove to fix the cushion 3 together with the fixing rod 41. The dead lever 41 bending type becomes the mounting groove, bolster 3 certainly the opening is installed extremely in the mounting groove, set up lockpin subassembly 42 with the mounting groove forms jointly and surrounds bolster 3 sets up, guarantees that power battery installs firmly at vehicle operation in-process, lockpin 421 is along mobile from top to bottom, is convenient for bolster 3's installation prevents to shelter from unable packing into because of the opening, the fender is only carried out after bolster 3 installation targets in place, guarantees that the installation is firm to convenient operation realizes quick assembly, and power battery's the operation of trading of being convenient for reduces the latency of charging.
Specifically, referring to fig. 5, a first mounting hole is formed through a lower end surface of the chassis frame 1; the lock pin assembly 42 further comprises a containing seat arranged at the upper end of the chassis framework 1, a containing cavity is formed in the containing seat, and an opening communicated with the containing cavity is arranged on one side, opposite to the first mounting hole, of the containing seat in a penetrating manner; the locking pin 421 is arranged in the accommodating cavity, and the lower end of the locking pin 421 protrudes out of the accommodating seat from an opening of the accommodating cavity and extends into the lower part of the chassis framework 1 from the first mounting hole; the locking pin assembly 42 further includes a return spring disposed in the accommodating cavity and located between the lower wall surface of the accommodating seat and the upper end surface of the locking pin 421. Locking round pin 421 under reset spring's effect, certainly opening along from top to bottom movable mounting in the holding intracavity, press during the installation of bolster 3 locking round pin 421, make reset spring compresses, bolster 3 install the back that targets in place with locking round pin 421 separation, initial position is resumeed to locking round pin 421 under the effect of spring force, realizes the backstop, and simple structure realizes easily.
For the reason that the vehicle may vibrate during the driving process and the buffer member 3 may move under the influence of the vibration, referring to fig. 6, a first mounting groove 32 is formed on a side surface of the buffer member 3 facing an opening side of the mounting groove, and the fixing rod 41 is at least partially embedded in the first mounting groove 32. Thereby limiting the relative position between the buffer member 3 and the fixing rod 41 and preventing the buffer member 3 from moving during the running of the vehicle, thereby affecting the stability of the power battery mounting structure 100.
Further, in order to prevent the buffer member 3 from moving under the influence of vibration, a second mounting groove 33 is formed on a side surface of the buffer member 3 facing away from the opening side of the mounting groove, and the locking pin 421 is at least partially embedded in the second mounting groove 33. Thereby limiting the relative position between the bumper member 3 and the locking pin 421, and preventing the bumper member 3 from moving during the running of the vehicle, thereby affecting the stability of the power battery mounting structure 100.
It should be noted that, the two related technical features of the first mounting groove 32 and the second mounting groove 33 can be alternatively or simultaneously disposed, in this embodiment, the first mounting groove 32 and the second mounting groove 33 are simultaneously disposed, so as to better limit the mounting position of the buffer member 3, and ensure the stability of the power battery mounting structure 100.
In another embodiment of the present invention, please refer to fig. 7, a side surface of the chassis frame 1 is a mounting side surface b; the fixing structure 4 includes a fixing plate 43, an upper end of the fixing plate 43 is fixedly mounted to the mounting side surface b, a second mounting hole 431 is formed at a lower end of the fixing plate 43, and the buffer member 3 is mounted in the second mounting hole 431. The buffer piece 3 and the fixing plate 42 are fixed in a shaft hole matching mode, and firm installation is guaranteed.
Further, in this embodiment, in order to prevent the buffer member 3 from moving under the influence of vibration, the buffer member 3 is disposed in a step manner along a direction away from the package housing 21 to form a first step surface 34 away from the package housing 21; in a direction away from the package housing 21, the second mounting hole 431 is arranged in a step shape corresponding to the buffer 3 to form a second step surface 3211 facing the package housing 21, and the second step surface 4311 is arranged in a manner of abutting against the first step surface 34. Through the mutual matching of the second step surface 4311 and the first step surface 34, the mounting position of the buffer member 3 is limited, and the stability of the power battery mounting structure 100 is ensured.
In this embodiment, in order to fix the fixing plate 43 to the chassis frame 1, referring to fig. 8, a positioning pin 44 is convexly disposed on the mounting side surface b, a positioning hole corresponding to the positioning pin 44 is disposed on the fixing plate 43, and the positioning pin 44 is disposed in the positioning hole, so that the fixing plate 43 is not only mounted on the chassis frame 1, but also is positioned and guided by the positioning pin 44 through pin-hole matching.
The fixing plate 43 and the chassis frame 1 are connected in a plurality of ways, specifically, the mounting side surface b is provided with a threaded hole in a penetrating manner, the fixing plate 43 is provided with a connecting hole corresponding to the threaded hole, the fixing structure 4 further comprises a fastening bolt, and a threaded portion of the fastening bolt penetrates through the connecting hole and is installed in the threaded hole in a threaded manner. The fixing plate 43 is fixedly connected with the chassis framework 1 in a threaded connection mode, and the chassis framework is simple in structure and convenient to assemble and disassemble.
It should be noted that, the above-mentioned mounting side surface b is convexly provided with the positioning pin 44, and the fixing structure 4 is provided with two related technical features of the fastening bolt, which may be alternatively or simultaneously provided.
In this embodiment, the buffer members 3 and the fixing structures 4 are in one-to-one correspondence to form a plurality of fixing groups. The fixed groups can be arranged according to the actual size of the power batteries, so that the power batteries with different sizes and specifications can be stably installed.
The invention further provides an electric vehicle which comprises the power battery mounting structure 100. The electric vehicle includes all the technical features of the power battery mounting structure 100, and therefore, has the technical effects brought by all the technical features, which are not described in detail herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A power battery mounting structure, characterized by comprising:
a chassis frame;
the battery assembly comprises a packaging shell for packaging the power battery;
the buffer piece is arranged on the packaging shell; and the number of the first and second groups,
the fixing structure is used for fixing the buffer piece to the chassis framework;
the surface of one side of the packaging shell is a mounting surface;
a first through hole is formed in the buffer piece in a penetrating manner and faces away from the mounting surface;
the power battery mounting structure still includes coupling assembling, coupling assembling includes:
the mounting bracket is arranged on the mounting surface, and a second through hole is formed in the middle of the mounting bracket; and the number of the first and second groups,
the connecting rod, along dorsad the installation face direction extends the setting, the one end of connecting rod is located the second via hole, the other end is outstanding the second via hole, and insert and arrange in the first via hole.
2. The power cell mounting structure according to claim 1, wherein the fixing structure includes:
the fixing rod extends up and down, the upper end of the fixing rod is arranged on the lower end face of the chassis framework, and the lower end of the fixing rod is transversely bent to form an installation groove with an opening at one side with the chassis framework; and the number of the first and second groups,
the lock pin assembly comprises a lock pin movably mounted on the lower end face of the chassis framework along the direction opposite to the direction, the lock pin is arranged on the opening side of the mounting groove and used for being jointly fixed with the fixing rod to form the buffer piece.
3. The power battery mounting structure according to claim 2, wherein a first mounting hole is formed through a lower end surface of the chassis frame;
the lock pin assembly further comprises a containing seat arranged at the upper end of the chassis framework, a containing cavity is formed in the containing seat, and an opening communicated with the containing cavity is arranged on one side, opposite to the first mounting hole, of the containing seat in a penetrating manner;
the locking pin is arranged in the accommodating cavity, and the lower end of the locking pin protrudes out of the accommodating seat from an opening of the accommodating cavity and extends into the lower part of the chassis framework from the first mounting hole;
the lock pin assembly further comprises a return spring which is arranged in the accommodating cavity and is positioned between the lower wall surface of the accommodating seat and the upper end surface of the locking pin.
4. The power battery mounting structure according to claim 2, wherein a side surface of the buffer member facing an opening side of the mounting groove is provided with a first mounting groove, and the fixing rod is at least partially embedded in the first mounting groove; and/or the presence of a gas in the gas,
the lateral surface of the side surface of the buffer piece, which faces away from the opening side of the mounting groove, is provided with a second mounting groove, and the locking pin is at least partially embedded into the second mounting groove.
5. The power-battery mounting structure according to claim 1, wherein one side surface of the chassis frame is a mounting side surface;
the fixing structure comprises a fixing plate, the upper end of the fixing plate is fixedly mounted to the mounting side face, and the lower end of the fixing plate is provided with a second mounting hole;
the buffer member is mounted in the second mounting hole.
6. The power battery mounting structure of claim 5, wherein the buffer member is stepped in a direction away from the package housing to form a first stepped surface facing away from the package housing;
along dorsad in the direction of encapsulation casing, the second mounting hole corresponds the bolster is the step setting in order to form an orientation the second step face of encapsulation casing, the second step face with first step face supports tight setting.
7. The power battery mounting structure according to claim 5, wherein a positioning pin is convexly arranged on the mounting side surface, a positioning hole corresponding to the positioning pin is arranged on the fixing plate, and the positioning pin is arranged in the positioning hole; and/or the presence of a gas in the gas,
the mounting side surface is provided with a threaded hole in a penetrating mode, the fixing plate is provided with a connecting hole corresponding to the threaded hole, the fixing structure further comprises a fastening bolt, and the threaded portion of the fastening bolt penetrates through the connecting hole and is installed in the threaded hole in a threaded mode.
8. The power battery mounting structure according to claim 1, wherein the buffer members and the fixing structures are provided in a one-to-one correspondence as a plurality of fixing groups.
9. An electric vehicle characterized by comprising the power battery mounting structure according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911219166.1A CN111312942B (en) | 2019-11-28 | 2019-11-28 | Power battery mounting structure and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911219166.1A CN111312942B (en) | 2019-11-28 | 2019-11-28 | Power battery mounting structure and electric automobile |
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| Publication Number | Publication Date |
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| CN111312942A CN111312942A (en) | 2020-06-19 |
| CN111312942B true CN111312942B (en) | 2021-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911219166.1A Active CN111312942B (en) | 2019-11-28 | 2019-11-28 | Power battery mounting structure and electric automobile |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113246710B (en) * | 2021-06-10 | 2022-08-26 | 东风柳州汽车有限公司 | Power battery's mounting structure and car |
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| CN205039188U (en) * | 2015-09-15 | 2016-02-17 | 北京新能源汽车股份有限公司 | Electric vehicle and battery flexible installation device thereof |
| CN208931114U (en) * | 2018-09-25 | 2019-06-04 | 北京新能源汽车股份有限公司 | Quick locking mechanism and vehicle for battery pack |
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| JP2010125867A (en) * | 2008-11-25 | 2010-06-10 | Nissan Motor Co Ltd | Battery fixing structure of electric powered vehicle |
| JP2013154738A (en) * | 2012-01-30 | 2013-08-15 | Daihatsu Motor Co Ltd | Battery fixing structure of vehicle |
| CN202764685U (en) * | 2012-07-24 | 2013-03-06 | 上海电巴新能源科技有限公司 | Clamping mechanism and locking device |
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| CN111312942A (en) | 2020-06-19 |
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