CN109703348B - Automobile battery fixing structure and automobile battery fixing method - Google Patents
Automobile battery fixing structure and automobile battery fixing method Download PDFInfo
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- CN109703348B CN109703348B CN201910143045.7A CN201910143045A CN109703348B CN 109703348 B CN109703348 B CN 109703348B CN 201910143045 A CN201910143045 A CN 201910143045A CN 109703348 B CN109703348 B CN 109703348B
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims abstract description 60
- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000003466 welding Methods 0.000 claims description 6
- 230000017525 heat dissipation Effects 0.000 claims description 4
- 230000004308 accommodation Effects 0.000 claims description 2
- 238000003825 pressing Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 7
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Battery Mounting, Suspending (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention provides an automobile battery fixing structure and an automobile battery fixing method, wherein the automobile battery fixing structure comprises: a battery case skeleton assembly and a battery cover plate; the battery box framework assembly comprises a peripheral plate, a bottom support piece and a battery translational degree of freedom limiting piece; the battery cover plate is correspondingly provided with a plurality of cover plate protruding structures protruding downwards, and the cover plate protruding structures are pressed at different position points on the surface of the battery in the battery accommodating groove. The advantages are that: the Z-direction freedom degree of the battery body is restrained by tightly pressing the battery through the battery cover plate; the fixed rigidity of the battery is increased, the mode of the battery is improved, and the influence of up-and-down shaking of the battery on the mounting point structure is avoided. Because the battery pressing plate and the hook structure are not needed, the labor installation cost and the whole vehicle part cost are reduced. The structural volume of the battery box is larger than the volume of the battery so as to adapt to the battery with larger capacity (volume), and the application range of the battery box is enlarged.
Description
Technical Field
The invention belongs to the technical field of battery fixing, and particularly relates to an automobile battery fixing structure and an automobile battery fixing method.
Background
The conventional battery fixing mode of the pure electric vehicle mainly comprises two modes: first, referring to fig. 1, the battery periphery is bolted to the body frame; in fig. 1, 1 represents the attachment points of the battery to the vehicle body frame, and there are 6 attachment points in total. Second, referring to fig. 2, the batteries are placed in a battery frame, and a battery pressing plate 2 is provided on top of the plurality of batteries; then, the battery pressing plate 2 is fixed to the battery frame by the hooks 3.
The two battery fixing modes mainly have the following problems: for the first mode, the middle area of the battery is not connected with the vehicle body frame, the mass in the middle of the battery is supported by virtue of peripheral bolt connection points, and the rigidity mode of the middle area is lower than that of the periphery; for the second mode, because the hook and the battery pressing plate structure are needed, the number of structural parts is large, and certain waste is caused to cost and labor.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides an automobile battery fixing structure and an automobile battery fixing method, which can effectively solve the problems.
The technical scheme adopted by the invention is as follows:
the invention provides a fixing structure of an automobile battery, comprising: a battery case skeleton assembly (100) and a battery cover plate (200);
the battery box framework assembly (100) comprises a peripheral plate (101), a bottom support (102) and a battery translational degree of freedom limiting piece (103); the peripheral plate (101) comprises a peripheral side plate (104), and a left peripheral bottom plate (105) and a right peripheral bottom plate (106) which are integrally formed on the left side and the right side of the peripheral side plate (104); the left peripheral bottom plate (105) is welded to a left longitudinal beam (301) of the automobile body, and the right peripheral bottom plate (106) is welded to a right longitudinal beam (302) of the automobile body;
-the bottom of the peripheral plate (101) is fixed to the bottom support (102); -the bottom support (102) is formed with a battery receiving recess (107) for receiving a battery (400); if the accommodating space of the battery accommodating groove (107) is larger than the volume of the battery (400) to be fixed, fixedly mounting at least one translational degree of freedom limiting piece (103) of the battery on the outer edge of the battery accommodating groove (107); wherein, the translational degree of freedom limiting piece (103) of the battery is an L-shaped member and comprises a horizontal fixing surface (1031) and a vertical protection surface (1032) which are integrally formed; the horizontal fixing surface (1031) is fixed outside the battery accommodating groove (107); the vertical protection surface (1032) extends to an inner upper portion of the battery accommodation groove (107);
the battery cover plate (200) is mounted on the top of the battery box framework assembly (100) through bolts, and according to the shape of a battery (400) placed in the battery accommodating groove (107), the battery cover plate (200) is correspondingly provided with a plurality of cover plate protruding structures (201) protruding downwards, and the cover plate protruding structures (201) are pressed at different position points on the surface of the battery (400) in the battery accommodating groove (107); the outer surface of the battery cover plate (200) is provided with a seat mounting surface (202) for mounting a car seat (500); the seat mounting surface (202) is provided with a plurality of seat mounting holes (203).
Preferably, the battery accommodating groove (107) has a plurality of heat dissipation hole structures (1071).
Preferably, the peripheral plate (101) is an open peripheral plate, and comprises a front peripheral plate (1011), a left peripheral plate (1012) positioned on the left side of the front peripheral plate (1011) and a right peripheral plate (1013) positioned on the right side of the front peripheral plate (1011) which are integrally formed.
Preferably, the battery (400) has a convex shape; the battery accommodating groove (107) is in a corresponding convex shape.
Preferably, the height of the battery accommodating groove (107) is higher than the height of the battery (400).
Preferably, a rubber pad is arranged on the outer surface of the cover plate protruding structure (201), and the cover plate protruding structure (201) is pressed on the top of the battery (400) through the rubber pad.
The invention also provides an automobile battery fixing method of the automobile battery fixing structure, which comprises the following steps:
step 1, determining whether a translational degree of freedom limiting piece (103) of a battery is needed according to the volume and the shape of the battery (400) to be installed; specifically, if the volume and the shape of the battery (400) to be installed are matched with those of the battery accommodating groove (107), the fact that the translational degree of freedom limiting piece (103) of the battery is not needed is indicated, and the step 2 is executed; if the volume of the battery (400) to be installed is smaller than the volume of the battery accommodating groove (107), according to the difference between the volume of the battery (400) and the volume of the battery accommodating groove (107), arranging a battery translational degree-of-freedom limiting part assembly hole at a corresponding position outside the battery accommodating groove (107), and then executing step 2;
step 2, welding a left peripheral bottom plate (105) of an automobile battery fixing structure to an automobile body left longitudinal beam (301), and welding a right peripheral bottom plate (106) to an automobile body right longitudinal beam (302); thereby realizing the fixation of the automobile battery fixing structure to the automobile body;
step 3, placing the battery (400) into the battery accommodating groove (107); if the translational degree of freedom limiting piece (103) of the battery is required to be installed, the rear side and the left side of the battery (400) are tightly attached to the groove wall of the battery accommodating groove (107), then the translational degree of freedom limiting piece (103) of the battery is assembled on the other side of the battery (400) in a bolt installation mode, and the vertical protection surface (1032) of the translational degree of freedom limiting piece (103) of the battery is tightly attached to each outer side surface of the battery (400), so that the effective limiting of the battery (400) is realized, and the translational movement of the battery (400) is avoided;
step 4, installing a battery cover plate (200) on the top of the peripheral plate (101) in a bolt mode, wherein cover plate protruding structures (201) at all positions of the battery cover plate (200) are pressed at different position points on the surface of a battery (400) in a battery accommodating groove (107), so that the Z-direction freedom degree of the battery (400) is restrained, the fixed rigidity of the battery (400) is increased, and the mode of the battery (400) is improved;
and 5, finally, installing the automobile seat (500) on the outer surface of the battery cover plate (200) in a bolt mode, and supporting the automobile seat (500) through an automobile battery fixing structure.
The automobile battery fixing structure and the automobile battery fixing method provided by the invention have the following advantages:
(1) The Z-direction freedom degree of the battery body is restrained by tightly pressing the battery through the battery cover plate; the fixed rigidity of the battery is increased, the mode of the battery is improved, and the influence of up-and-down shaking of the battery on the mounting point structure is avoided. Because the battery pressing plate and the hook structure are not needed, the labor installation cost and the whole vehicle part cost are reduced.
(2) The structural volume of the battery box is larger than the volume of the battery so as to adapt to the battery with larger capacity (volume), and the application range of the battery box is enlarged.
Drawings
FIG. 1 is a block diagram of a first vehicle battery securing method provided in the prior art;
FIG. 2 is a block diagram of a second vehicle battery securing method according to the prior art;
FIG. 3 is a front side block diagram of a vehicle battery securing structure provided by the present invention secured to a body rail after installation of a vehicle seat and battery;
FIG. 4 is a rear side view showing the structure of the battery fixing structure for an automobile according to the present invention, after mounting a seat for an automobile and a battery, fixed to a side member of a vehicle body;
fig. 5 is an assembled state diagram of the battery mounting structure of the automobile battery provided by the invention;
FIG. 6 is an exploded view of the battery mounting structure of the present invention after the battery is mounted;
FIG. 7 is an assembled state diagram of the battery fixing structure of the automobile provided by the invention without showing a battery cover plate;
FIG. 8 is an exploded view of the battery mounting structure of the present invention without showing a battery cover;
FIG. 9 is a block diagram of a translational degree of freedom stop for a battery provided by the present invention;
fig. 10 is a top view showing the distribution of the translational degree of freedom limiting members of the battery in the fixing structure of the automobile battery;
FIG. 11 is an enlarged view of a portion of the battery translational degree of freedom limiter provided by the invention distributed in a vehicle battery mounting structure;
fig. 12 is a structural view of a battery provided by the present invention;
fig. 13 is a structural view of a battery cover plate provided by the present invention.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the invention more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The present invention provides a battery fixing structure for an automobile, referring to fig. 3 to 13, comprising: a battery case frame assembly 100 and a battery cover 200;
the battery box skeleton assembly 100 comprises a peripheral plate 101, a bottom support 102 and a battery translational degree of freedom limiting piece 103;
the peripheral board 101 is mainly used for protecting and isolating the battery and the cab space, and referring to fig. 6, includes a peripheral side board 104, and a left peripheral bottom board 105 and a right peripheral bottom board 106 integrally formed on the left and right sides of the peripheral side board 104; the left peripheral bottom plate 105 is welded to the automobile body left side member 301, and the right peripheral bottom plate 106 is welded to the automobile body right side member 302; the peripheral panel 101 is an open peripheral panel including a front peripheral panel 1011, a left peripheral panel 1012 located on the left side of the front peripheral panel 1011, and a right peripheral panel 1013 located on the right side of the front peripheral panel 1011, which are integrally formed.
The bottom of peripheral plate 101 secures bottom support 102; the bottom support 102 is formed with a battery receiving groove 107 for receiving the battery 400; as a specific implementation, referring to fig. 12, the battery 400 is designed in a convex shape; therefore, the battery accommodating groove 107 has a corresponding convex shape. The height of the battery receiving groove 107 is higher than the height of the battery 400. The battery accommodating groove 107 and the battery 400 are designed to be in a convex shape, on one hand, the battery is constrained at a plurality of angles in terms of shape, so that the stability of the battery 400 in the battery accommodating groove 107 can be effectively ensured, and the battery 400 is prevented from shaking; on the other hand, the contact area between the battery 400 and the battery housing groove 107 can be increased as compared with the general rectangular parallelepiped shape, and the stability of the battery 400 placed in the battery housing groove 107 can be further improved.
In order to improve heat dissipation of the battery placed in the battery receiving groove 107, referring to fig. 7, the battery receiving groove 107 has a plurality of heat dissipation hole structures 1071.
In addition, in order to adapt the automobile battery fixing structure provided by the invention to batteries with different volumes and expand the adaptability, the invention also carries out the following innovative design: when the shape and the size of the battery to be installed are completely matched with those of the battery accommodating groove 107, the battery is directly placed in the battery accommodating groove 107, and the battery is limited through the battery accommodating groove 107; and when the volume of the battery to be mounted is smaller than that of the battery accommodating groove 107, the translational degree of freedom limiting member 103 of the battery is detachably mounted to the periphery of the battery accommodating groove 107. Specifically, if the accommodating space of the battery accommodating groove 107 is larger than the volume of the battery 400 to be fixed, at least one translational degree of freedom limiting member 103 of the battery is fixedly installed on the outer edge of the battery accommodating groove 107; wherein, the translational degree of freedom limiting piece 103 of the battery is an L-shaped member, referring to fig. 9, which is a structural diagram of the translational degree of freedom limiting piece 103 of the battery, and includes an integrally formed horizontal fixing surface 1031 and a vertical protection surface 1032; the horizontal fixing surface 1031 is fixed to the outside of the battery housing groove 107; the vertical protection surface 1032 extends to the inner upper portion of the battery accommodating groove 107; referring to fig. 10 and 11, an example of a specific arrangement of the translational degree of freedom limiting member 103 of the battery is shown.
The battery cover 200 is mounted on the top of the battery box skeleton assembly 100 through bolts, and referring to fig. 13, according to the shape of the battery 400 placed in the battery accommodating groove 107, the battery cover 200 is correspondingly provided with a plurality of cover protruding structures 201 protruding downwards, and the cover protruding structures 201 are pressed at different position points on the surface of the battery 400 in the battery accommodating groove 107; as a preferred mode, the outer surface of the cap plate protrusion structure 201 has a layer of rubber pad, and the cap plate protrusion structure 201 is pressed against the top of the battery 400 by the rubber pad. By providing the cover plate protrusion structure 201, the degree of freedom in the Z direction of the battery body is restrained.
The outer surface of the battery cover 200 has a seat mounting surface 202 for mounting the car seat 500; the seat mounting surface 202 is provided with a plurality of seat mounting holes 203. As shown in fig. 3, a schematic view of the car seat 500 mounted to the outside of the battery cover 200. Therefore, the automobile battery fixing structure provided by the invention has multiple functions, and on one hand, the inside of the automobile battery fixing structure is used for placing the battery, so that the battery is effectively supported and fixed. At the same time, it serves as a support structure for the car seat 500. The design fully utilizes the internal space of the automobile.
The invention provides an automobile battery fixing structure, which is characterized in that the using mode is as follows:
step 1, determining whether a battery translational degree of freedom limiting piece 103 is needed to be used according to the volume and the shape of a battery 400 to be installed; specifically, if the volume and shape of the battery 400 to be installed are both matched with the volume and shape of the battery accommodating groove 107, it is indicated that the translational degree of freedom limiting member 103 of the battery is not required to be used, and step 2 is performed; if the volume of the battery 400 to be installed is smaller than the volume of the battery accommodating groove 107, according to the difference between the volume of the battery 400 and the volume of the battery accommodating groove 107, arranging a translational degree-of-freedom limiting member assembly hole of the battery at a corresponding position outside the battery accommodating groove 107, and then executing the step 2;
step 2, welding a left peripheral bottom plate 105 of the automobile battery fixing structure to an automobile body left longitudinal beam 301, and welding a right peripheral bottom plate 106 to an automobile body right longitudinal beam 302; thereby realizing the fixation of the automobile battery fixing structure to the automobile body;
step 3, placing the battery 400 into the battery accommodating groove 107; if the translational degree of freedom limiting piece 103 of the battery is required to be installed, the rear side and the left side of the battery 400 are tightly attached to the groove wall of the battery accommodating groove 107, and then the translational degree of freedom limiting piece 103 of the battery is assembled on the other sides of the battery 400 in a bolt installation mode, so that the vertical protection surface 1032 of the translational degree of freedom limiting piece 103 of the battery is tightly attached to each outer side surface of the battery 400, thereby realizing effective limiting of the battery 400 and avoiding translational movement of the battery 400;
step 4, installing the battery cover plate 200 on the top of the peripheral plate 101 in a bolt manner, wherein at the moment, cover plate convex structures 201 at all positions of the battery cover plate 200 are pressed at different position points on the surface of the battery 400 in the battery accommodating groove 107, so that the Z-direction freedom degree of the battery 400 is restrained, the fixing rigidity of the battery 400 is increased, and the mode of the battery 400 is improved;
and 5, finally, installing the automobile seat 500 on the outer surface of the battery cover plate 200 in a bolt mode, and supporting the automobile seat 500 through an automobile battery fixing structure.
Therefore, the automobile battery fixing structure provided by the invention needs to pay attention to the following two points in actual use:
1 st: firstly, determining the battery specification, and checking whether a battery translation limiting piece is additionally arranged to fix the translation degree of freedom of the battery.
2: the protruding structure of battery cover plate increases the rubber pad, ensures to paste tightly with the battery.
The automobile battery fixing structure provided by the invention has the following advantages:
(1) The Z-direction freedom degree of the battery body is restrained by tightly pressing the battery through the battery cover plate; the fixed rigidity of the battery is increased, the mode of the battery is improved, and the influence of up-and-down shaking of the battery on the mounting point structure is avoided. Because the battery pressing plate and the hook structure are not needed, the labor installation cost and the whole vehicle part cost are reduced.
(2) The structural volume of the battery box is larger than the volume of the battery so as to adapt to the battery with larger capacity (volume), and the application range of the battery box is enlarged;
(3) The battery translational degree of freedom limiting piece is a detachable piece, when a small-capacity battery is used, the battery translational degree of freedom limiting piece is increased, when a large-capacity battery is used, the limiting piece is detached, and the battery box peripheral frame is used for effective limiting.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which is also intended to be covered by the present invention.
Claims (5)
1. An automobile battery fixing structure, characterized by comprising: a battery case skeleton assembly (100) and a battery cover plate (200);
the battery box framework assembly (100) comprises a peripheral plate (101), a bottom support (102) and a battery translational degree of freedom limiting piece (103); the peripheral plate (101) comprises a peripheral side plate (104), and a left peripheral bottom plate (105) and a right peripheral bottom plate (106) which are integrally formed on the left side and the right side of the peripheral side plate (104); the left peripheral bottom plate (105) is welded to a left longitudinal beam (301) of the automobile body, and the right peripheral bottom plate (106) is welded to a right longitudinal beam (302) of the automobile body; the peripheral board (101) is an open peripheral board and comprises a front peripheral board (1011), a left peripheral board (1012) positioned on the left side of the front peripheral board (1011) and a right peripheral board (1013) positioned on the right side of the front peripheral board (1011) which are integrally formed;
-the bottom of the peripheral plate (101) is fixed to the bottom support (102); -the bottom support (102) is formed with a battery receiving recess (107) for receiving a battery (400); the battery accommodating groove (107) is provided with a plurality of heat dissipation hole structures (1071); if the accommodating space of the battery accommodating groove (107) is larger than the volume of the battery (400) to be fixed, fixedly mounting at least one translational degree of freedom limiting piece (103) of the battery on the outer edge of the battery accommodating groove (107); wherein, the translational degree of freedom limiting piece (103) of the battery is an L-shaped member and comprises a horizontal fixing surface (1031) and a vertical protection surface (1032) which are integrally formed; the horizontal fixing surface (1031) is fixed outside the battery accommodating groove (107); the vertical protection surface (1032) extends to an inner upper portion of the battery accommodation groove (107);
the battery cover plate (200) is mounted on the top of the battery box framework assembly (100) through bolts, and according to the shape of a battery (400) placed in the battery accommodating groove (107), the battery cover plate (200) is correspondingly provided with a plurality of cover plate protruding structures (201) protruding downwards, and the cover plate protruding structures (201) are pressed at different position points on the surface of the battery (400) in the battery accommodating groove (107); the outer surface of the battery cover plate (200) is provided with a seat mounting surface (202) for mounting a car seat (500); the seat mounting surface (202) is provided with a plurality of seat mounting holes (203).
2. The automotive battery fixing structure according to claim 1, characterized in that the battery (400) is in a convex shape; the battery accommodating groove (107) is in a corresponding convex shape.
3. The automotive battery fixing structure according to claim 1, characterized in that the battery receiving groove (107) has a height higher than that of the battery (400).
4. The automobile battery fixing structure according to claim 1, wherein the outer surface of the cover plate protrusion structure (201) has a layer of rubber pad, and the cover plate protrusion structure (201) is pressed on top of the battery (400) by the rubber pad.
5. A method for fixing an automotive battery of an automotive battery fixing structure as claimed in any one of claims 1 to 4, characterized by comprising the steps of:
step 1, determining whether a translational degree of freedom limiting piece (103) of a battery is needed according to the volume and the shape of the battery (400) to be installed; specifically, if the volume and the shape of the battery (400) to be installed are matched with those of the battery accommodating groove (107), the fact that the translational degree of freedom limiting piece (103) of the battery is not needed is indicated, and the step 2 is executed; if the volume of the battery (400) to be installed is smaller than the volume of the battery accommodating groove (107), according to the difference between the volume of the battery (400) and the volume of the battery accommodating groove (107), arranging a battery translational degree-of-freedom limiting part assembly hole at a corresponding position outside the battery accommodating groove (107), and then executing step 2;
step 2, welding a left peripheral bottom plate (105) of an automobile battery fixing structure to an automobile body left longitudinal beam (301), and welding a right peripheral bottom plate (106) to an automobile body right longitudinal beam (302); thereby realizing the fixation of the automobile battery fixing structure to the automobile body;
step 3, placing the battery (400) into the battery accommodating groove (107); if the translational degree of freedom limiting piece (103) of the battery is required to be installed, the rear side and the left side of the battery (400) are tightly attached to the groove wall of the battery accommodating groove (107), then the translational degree of freedom limiting piece (103) of the battery is assembled on the other side of the battery (400) in a bolt installation mode, and the vertical protection surface (1032) of the translational degree of freedom limiting piece (103) of the battery is tightly attached to each outer side surface of the battery (400), so that the effective limiting of the battery (400) is realized, and the translational movement of the battery (400) is avoided;
step 4, installing a battery cover plate (200) on the top of the peripheral plate (101) in a bolt mode, wherein cover plate protruding structures (201) at all positions of the battery cover plate (200) are pressed at different position points on the surface of a battery (400) in a battery accommodating groove (107), so that the Z-direction freedom degree of the battery (400) is restrained, the fixed rigidity of the battery (400) is increased, and the mode of the battery (400) is improved;
and 5, finally, installing the automobile seat (500) on the outer surface of the battery cover plate (200) in a bolt mode, and supporting the automobile seat (500) through an automobile battery fixing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910143045.7A CN109703348B (en) | 2019-02-26 | 2019-02-26 | Automobile battery fixing structure and automobile battery fixing method |
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| CN201910143045.7A CN109703348B (en) | 2019-02-26 | 2019-02-26 | Automobile battery fixing structure and automobile battery fixing method |
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| CN109703348B true CN109703348B (en) | 2023-12-19 |
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| CN112659963B (en) * | 2020-12-24 | 2023-07-25 | 国网智慧能源交通技术创新中心(苏州)有限公司 | Bottom supporting structure of battery replacement cantilever |
| CN114261269B (en) * | 2021-11-30 | 2023-10-20 | 东风汽车集团股份有限公司 | Automobile rear collision protection structure and hybrid electric vehicle |
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| CN109703348A (en) | 2019-05-03 |
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