CN106985650B - Mounting structure and method for automobile power battery - Google Patents
Mounting structure and method for automobile power battery Download PDFInfo
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- CN106985650B CN106985650B CN201710218384.8A CN201710218384A CN106985650B CN 106985650 B CN106985650 B CN 106985650B CN 201710218384 A CN201710218384 A CN 201710218384A CN 106985650 B CN106985650 B CN 106985650B
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- battery
- assembly
- tray
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- battery box
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
- B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
- B60K2001/0416—Arrangement in the rear part of the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
- B60K2001/0455—Removal or replacement of the energy storages
- B60K2001/0472—Removal or replacement of the energy storages from below
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention discloses an automobile power battery mounting structure, wherein a power battery is mounted at the rear part of an automobile body and comprises a battery box assembly and an automobile body rear part assembly, and through the structure, in the battery assembly process, the automobile body is firstly lifted to the height of about 2 meters through a lifting appliance, the battery assembly enters from the bottom of the automobile body by means of a transportation auxiliary tool and a lifting mechanism, and then enters the automobile body upwards after reaching the rectangular opening position of the automobile body, and finally a worker stands below the automobile body and sequentially fastens bolts to complete the whole assembly process. The operation space is sufficient during the period, no space limitation exists, the sealing performance requirement of the whole vehicle is met through simple bolt connection and a sealing ring structure, and a good balance is achieved in the aspects of production operation, beat efficiency and the performance of the whole vehicle.
Description
Technical Field
The invention relates to the technical field of motor vehicles, in particular to a mounting and fixing mode of a three-compartment hybrid electric vehicle battery and a corresponding vehicle body structure.
Background
Common three-compartment hybrid electric vehicles (PHEV) are manufactured by modifying gasoline power vehicles, and the whole bottom of a vehicle body cannot be lifted by using a pure electric vehicle structure for reference, so that a power battery (hereinafter referred to as a battery) is arranged below the vehicle body. Because the modification range of the vehicle body is limited, the battery is large in size and is generally arranged at the position of the luggage compartment, and meanwhile, in order to ensure the space maximization of the luggage compartment and the safety of rear collision, the battery needs to be arranged close to the last row of seats, and the rear wheel cover is also arranged near the position, so that the narrow and narrow assembling space of the battery is caused. In the production and assembly process, the battery is sent into the luggage compartment by the lifting appliance with the long cantilever, workers enter the luggage compartment again to assemble, the inner space is very narrow, the operation of the workers is inconvenient, and the production efficiency is low.
Disclosure of Invention
The invention aims to solve the problem of the assembly efficiency of the battery, namely, the problem of narrow assembly space is solved through another way, the quick assembly of the battery is realized, and the production efficiency is finally improved.
In order to achieve the purpose, the invention adopts the technical scheme that: the automobile power battery mounting structure is characterized in that a power battery is mounted at the rear part of an automobile body and comprises a battery box assembly and an automobile body rear part assembly;
the battery box assembly comprises a battery bracket and a battery box, the battery bracket comprises a supporting plate for supporting the battery box and a bracket beam fixed on the ground of the tray, the bracket beam is transversely arranged along the vehicle body, the end heads at the two ends of the bracket beam extend out of the tray, end head mounting holes are formed in the end heads, and tray mounting holes are formed in the edge of the tray;
the rear assembly of the vehicle body is formed by surrounding a middle bottom plate cross beam at the front part, a rear bottom plate cross beam at the rear part and rear longitudinal beams at two sides into a battery through hole, and the length and width of the corner of the battery through hole are slightly larger than the length and width of the battery box;
the end mounting holes on the two sides of the battery box assembly are fixed on the rear longitudinal beam through mounting bolts and projection welding nuts, the tray mounting hole on the front side of the battery box assembly is fixed on the middle bottom plate cross beam through the mounting bolts and the projection welding nuts, and the tray mounting hole on the rear side of the battery box assembly is fixed on the rear bottom plate cross beam through the mounting bolts and the projection welding nuts.
A circle of sealing ring protruding out of the surface of the tray is arranged between the tray mounting hole in the upper surface of the tray and the battery box; a middle bottom plate is arranged on the middle bottom plate beam, and a middle bottom plate concave platform which is downwards sunken and is tightly contacted with the front side of the sealing ring is arranged on the rear side edge of the middle bottom plate; the rear floor is characterized in that a rear floor is arranged on the rear floor beam, a rear floor concave platform which is downward sunken and closely contacted with the rear side edge of the sealing ring is arranged at the front side edge of the rear floor, a middle bottom plate side plate is arranged on the rear longitudinal beam, and side plate concave platforms which are downward sunken and closely contacted with the two sides of the sealing ring are arranged at the inner side edges of the middle bottom plate side plates.
The rear longitudinal beam is internally provided with a rear longitudinal beam reinforcing plate attached to the rear longitudinal beam, the rear longitudinal beam reinforcing plate is provided with a reinforcing plate mounting hole matched with the end mounting hole, and the diameter of the mounting through hole on the rear longitudinal beam is larger than that of the hole on the rear longitudinal beam reinforcing plate.
The beam and the battery bracket are cast integrally.
1-3 bracket cross beams are arranged on the bottom surface of the tray.
The mounting method based on the automobile power battery mounting structure comprises the following steps:
and 5, mounting a mounting bolt between the battery box assembly and the vehicle body rear assembly.
The invention has the advantages that through the structure, in the battery assembly process, the vehicle body is firstly lifted to the height of about 2 meters through the lifting appliance, the battery assembly enters from the bottom of the vehicle body by virtue of the transportation auxiliary tool and the lifting mechanism, reaches the rectangular opening position of the vehicle body and then upwards enters into the vehicle body, and finally a worker stands below the vehicle body and sequentially fastens the bolts to complete the whole assembly process. The operation space is sufficient during the period, no space limitation exists, the sealing performance requirement of the whole vehicle is met through simple bolt connection and a sealing ring structure, and a good balance is achieved in the aspects of production operation, beat efficiency and the performance of the whole vehicle.
Drawings
The following is a brief description of the contents of each figure and the symbols in the figures in the description of the invention:
FIG. 1: an exploded view of the battery and the vehicle body;
FIG. 2: is an enlarged view of the circle in fig. 1;
FIG. 3: a bottom view of the battery after assembly with the vehicle body;
FIG. 4 is a schematic view of: isbase:Sub>A cross-sectional view A-A in FIG. 3
FIG. 5 is a schematic view of: an enlarged view at the circle in fig. 4;
FIG. 6: is a cross-sectional view B-B in FIG. 3;
FIG. 7: is an enlarged view of the circle in fig. 6;
the labels in the above figures are:
1. the battery bracket comprises a battery bracket body, a battery bracket body 1A, a tray body 1B, a bracket beam, a bracket body 1C, a sealing ring, a bracket body 1D, a tray mounting hole 1E, an end head 1F, an end head mounting hole 2, a battery box 3, a rear floor 3A, a rear floor concave platform 4, a rear longitudinal beam 5, a middle bottom plate 5A, an edge plate concave platform 6, a rear wheel cover 7, a rear longitudinal beam reinforcing plate 8, a mounting bolt 9, a projection welding nut 10, a rear floor beam 10A, a beam concave platform 11, a middle bottom plate beam 12, a middle bottom plate 12A, a middle bottom plate concave platform 13, a wrapping frame 14, a battery box assembly 15, a vehicle body rear assembly 16 and a battery through hole;
for the description of the coordinate system in the figures: the X-direction, the front-rear direction, the longitudinal direction of the vehicle body, the Y-direction, the left-right direction, the transverse direction of the vehicle body, and the Z-direction, the up-down direction, are the directions perpendicular to the plane formed by the XY.
Detailed Description
The automobile power battery mounting structure is that the battery and the automobile body are made into two independent assemblies, namely a battery box assembly 14 and an automobile body rear assembly 15, and because the automobile body is taken as a reference, the terms of directions such as front, back, two sides, transverse and longitudinal in the patent application are all taken as the reference basis for the direction of the automobile.
The battery assembly comprises battery box 2 and bracket, and the bracket is located the bottom of battery box 2, and the bracket comprises tray 1A and a plurality of bracket crossbeam 1B (generally recommend 1-3), is provided with on the tray 1A and surrounds the peripheral round of battery and be cyclic annular confined sealing washer 1C, in the outside of sealing washer 1C, a plurality of tray mounting hole 1D of equipartition. The sealing ring 1C is firmly connected with the tray 1A in a clamping or bonding mode, preferably, the Z-direction height of the sealing ring 1C is 5-10mm, the sealing ring 1C can be compressed in the Z direction, and the compressed height is 1-3mm.
The rear assembly 15 of the vehicle body is provided with a battery through hole 16 for the battery box 2 to pass through, and the overlooking projection length and width of the battery through hole 16 is slightly larger than the overlooking projection size of the battery box 2, so that the battery box 2 can smoothly enter the interior of the vehicle body from the lower part of the vehicle body in the assembling process.
The rear longitudinal beams 4 which play a role of bearing the whole automobile body and are connected with the auxiliary frame are distributed on the left side and the right side of the automobile body, the cross sections of the rear longitudinal beams 4 are of U-shaped structures, rear longitudinal beam reinforcing plates 7 are arranged in the rear longitudinal beam reinforcing plates, the cross sections of the rear longitudinal beam reinforcing plates are also of U shapes, are partially attached to the rear longitudinal beams 4, and are connected through resistance welding. The rear longitudinal beam 4 on the single side is provided with 6 mounting through holes corresponding to the coaxial positions of the holes, and the reinforcing plate 7 of the rear longitudinal beam is provided with 6 holes which are provided with projection welding nuts 9. The diameter of the mounting through hole on the rear longitudinal beam 4 is 1-2mm larger than that of the hole on the rear longitudinal beam reinforcing plate 7 so as to absorb the manufacturing tolerance.
After the battery box 2 is assembled into the vehicle body, the end heads 1E on the two sides of the bracket beam 1B are attached to the bottom surface of the rear longitudinal beam 4, the axle center of the end head mounting hole 1F on the end head 1E is superposed with the axle centers of the rear longitudinal beam 4 and the hole of the rear longitudinal beam reinforcing plate 7, and finally the bracket beam 1B is connected with the vehicle body rear assembly 15 through the mounting bolt 8.
The rear floor beam 10 and the middle floor beam 11 are connected with the rear longitudinal beam 4 in the Y direction through welding to form a shape II. The rear floor beam 10 is evenly provided with 5-Z-direction bosses on the Y-direction welding edge of the rear floor 3, a projection welding nut 9 is arranged after a hole is formed in each boss, and similarly, a plurality of bosses with the same size and projection welding nuts 9 are arranged in the welding edge area of the rear longitudinal beam 4 and the middle bottom plate beam 11. The positions of the bosses and the projection welding nuts 9 correspond to the tray mounting holes 1D on the tray 1A one by one, and after the battery box 2 is assembled into the vehicle body, the tray 1A is connected with the vehicle body rear assembly 15 through the mounting bolt 8.
The middle bottom plate 12, the middle bottom plate side plates 5 and the rear floor 3 on two sides are tiled on an assembly formed by the longitudinal beam, the rear floor beam 10 and the middle bottom plate beam 11, a battery through hole 16 with a rectangular overlooking visual angle is formed in the middle, the rear floor 3 is provided with a rear floor concave platform 3A which extends along the Y direction and has an inverted trapezoidal cross section at the position which is close to the battery through hole 16 and is about 1-3mm to the outside, the middle bottom plate side plates 5 and the middle bottom plate 12 are also provided with the same side plate concave platforms 5A and the same middle bottom plate concave platforms 12A, the concave platforms are connected end to end, the rectangular shape is formed in the overlooking visual angle, the lower surfaces of the concave platforms are matched with a sealing ring 1C on the battery box assembly 14, the sealing ring 1C is compressed to achieve the sealing purpose, and dust, water vapor, noise and the like outside the vehicle are prevented from entering the inside of the vehicle body.
The middle bottom plate 12, the middle bottom plate side plates 5 and the rear floor 3 can be replaced by a complete floor, namely, the battery through holes 16 and the concave stations of the outer ring are punched on one floor part, so that the seamless connection of the concave stations of one circle can be ensured, and the sealing performance is improved.
Through above structure, in the battery assembling process, at first the automobile body is raised to about 2 meters's height through the hoist, assists utensil and lifting mechanism with the help of the transportation for the battery assembly gets into from the automobile body bottom, reaches inside the automobile body again upwards entering behind the automobile body rectangle opening position, and the workman stands in the automobile body below at last, and fastening bolt accomplishes whole assembling process in proper order. The operation space is sufficient during the period, no space limitation exists, the sealing performance requirement of the whole vehicle is met through simple bolt connection and a sealing ring 1C structure, and the balance among production operation, beat efficiency and the performance of the whole vehicle is better.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (5)
1. Automobile power battery mounting structure, power battery installs the rear portion at the automobile body, its characterized in that: the vehicle body rear part assembly comprises a battery box assembly and a vehicle body rear part assembly;
the battery box assembly comprises a battery bracket and a battery box, the battery bracket comprises a supporting plate for supporting the battery box and a bracket beam fixed on the ground of the tray, the bracket beam is transversely arranged along the vehicle body, the end heads at the two ends of the bracket beam extend out of the tray, end head mounting holes are formed in the end heads, and tray mounting holes are formed in the edge of the tray;
the rear assembly of the vehicle body is formed by surrounding a middle bottom plate cross beam at the front part, a rear bottom plate cross beam at the rear part and rear longitudinal beams at two sides into a battery through hole, and the length and width of the corner of the battery through hole are slightly larger than the length and width of the battery box;
the mounting holes at the end heads on the two sides of the battery box assembly are fixed on the rear longitudinal beam through mounting bolts and projection welding nuts, the tray mounting hole at the front side of the battery box assembly is fixed on the middle bottom plate cross beam through the mounting bolts and the projection welding nuts, and the tray mounting hole at the rear side of the battery box assembly is fixed on the rear bottom plate cross beam through the mounting bolts and the projection welding nuts;
a circle of sealing ring protruding out of the surface of the tray is arranged between the tray mounting hole in the upper surface of the tray and the battery box; a middle bottom plate is arranged on the middle bottom plate beam, and a middle bottom plate concave platform which is downwards sunken and is tightly contacted with the front side of the sealing ring is arranged on the rear side edge of the middle bottom plate; the rear floor beam is provided with a rear floor, the front side edge of the rear floor is provided with a rear floor concave platform which is downwards sunken and is in close contact with the rear side edge of the sealing ring, the rear longitudinal beam is provided with a middle bottom plate side plate, and the inner side edges of the middle bottom plate side plates positioned at two sides are provided with side plate concave platforms which are downwards sunken and are in close contact with the two sides of the sealing ring;
the sealing ring on the tray annularly surrounds the periphery of the battery for one circle, and the sealing ring is firmly connected with the tray in a clamping or bonding mode.
2. The automotive power battery mounting structure according to claim 1, characterized in that: the rear longitudinal beam is internally provided with a rear longitudinal beam reinforcing plate attached to the rear longitudinal beam, the rear longitudinal beam reinforcing plate is provided with a reinforcing plate mounting hole matched with the end mounting hole, and the diameter of the mounting through hole on the rear longitudinal beam is larger than that of the hole on the rear longitudinal beam reinforcing plate.
3. The automotive power battery mounting structure according to claim 2, characterized in that: the cross beam and the battery bracket are integrally cast.
4. The automotive power battery mounting structure according to claim 3, characterized in that: 1-3 bracket cross beams are arranged on the bottom surface of the tray.
5. The mounting method of the mounting structure for the automotive power battery according to any one of claims 1 to 4, characterized in that:
step 1, independently assembling a battery box assembly and a vehicle body rear assembly;
step 2, lifting the car body through a lifting appliance;
step 3, transporting the battery box assembly to the position below a battery through hole of the vehicle body rear assembly;
step 4, the battery box assembly enters the vehicle body rear assembly from the battery through hole by utilizing the lifting mechanism;
and 5, mounting a bolt between the battery box assembly and the vehicle body rear assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710218384.8A CN106985650B (en) | 2017-04-05 | 2017-04-05 | Mounting structure and method for automobile power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710218384.8A CN106985650B (en) | 2017-04-05 | 2017-04-05 | Mounting structure and method for automobile power battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106985650A CN106985650A (en) | 2017-07-28 |
| CN106985650B true CN106985650B (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710218384.8A Active CN106985650B (en) | 2017-04-05 | 2017-04-05 | Mounting structure and method for automobile power battery |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107284219A (en) * | 2017-08-08 | 2017-10-24 | 河南森地新能源汽车股份有限公司 | Battery bracket device after electric automobile |
| CN107985050A (en) * | 2017-12-15 | 2018-05-04 | 阿尔特汽车技术股份有限公司 | The connection structure of new energy car power battery pack frame and vehicle body mounting rail |
| CN110329360B (en) * | 2018-03-30 | 2021-05-14 | 比亚迪股份有限公司 | Vehicle body structure and automobile |
| CN110329362B (en) * | 2018-03-30 | 2021-02-23 | 比亚迪股份有限公司 | Vehicle body structure and automobile |
| CN111299989A (en) * | 2018-12-11 | 2020-06-19 | 珠海广通汽车有限公司邯郸分公司 | Power battery bracket installation tool and system |
| CN112086590A (en) * | 2019-05-27 | 2020-12-15 | 广州汽车集团股份有限公司 | Electric automobile battery, tightening mechanism and battery installation method |
| CN110641270A (en) * | 2019-11-08 | 2020-01-03 | 安徽安凯汽车股份有限公司 | Pure electric business passenger car battery mounting structure |
| CN113690532A (en) * | 2021-07-07 | 2021-11-23 | 浙江零跑科技股份有限公司 | Battery tray seal structure |
| CN113752813A (en) * | 2021-10-19 | 2021-12-07 | 广州小鹏汽车科技有限公司 | Power battery package and automobile body integrated configuration and vehicle of vehicle |
| CN114750835B (en) * | 2022-06-16 | 2022-10-18 | 云南昆船电子设备有限公司 | Chassis structure of unmanned rapid transport trolley |
| WO2024000239A1 (en) * | 2022-06-29 | 2024-01-04 | 宁德时代新能源科技股份有限公司 | Box, battery, and electrical device |
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| CN202174924U (en) * | 2011-07-29 | 2012-03-28 | 比亚迪股份有限公司 | Mounting structure of power cell of vehicle |
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| JP2008037135A (en) * | 2006-08-01 | 2008-02-21 | Mazda Motor Corp | Battery mounting structure of vehicle body rear part |
| JP2009083598A (en) * | 2007-09-28 | 2009-04-23 | Mitsubishi Motors Corp | Electric automobile |
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| CN106985650A (en) | 2017-07-28 |
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