CN113246711B - Battery package mounting structure and back floor assembly - Google Patents
Battery package mounting structure and back floor assembly Download PDFInfo
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- CN113246711B CN113246711B CN202110701290.2A CN202110701290A CN113246711B CN 113246711 B CN113246711 B CN 113246711B CN 202110701290 A CN202110701290 A CN 202110701290A CN 113246711 B CN113246711 B CN 113246711B
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- 239000000498 cooling water Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 230000001771 impaired effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
-
- 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
- B60K2001/0438—Arrangement under the floor
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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 provides a battery pack mounting structure and a rear floor assembly. This scheme has improved battery package mounting structure bearing performance and anti striking performance, reduces the impaired risk of battery package.
Description
Technical Field
The invention relates to the technical field of automobile devices, in particular to a battery pack mounting structure and a rear floor assembly.
Background
New energy automobiles are more and more popular, wherein the hybrid automobile type is not only fuel-saving, but also is one of hot automobiles. Hybrid battery packs are typically much smaller than battery packs for pure electric vehicles. Typically the hybrid battery pack will be disposed above or below the rear floor. When the exhaust pipe and the battery pack are arranged, the arrangement and the structural design of the exhaust pipe and the battery pack are particularly important. When the battery pack is arranged on the rear floor, the luggage compartment exerts force on the battery pack mounting structure, the existing battery pack mounting structure is not high in strength and rigidity, the driving safety performance is affected, and the bearing performance needs to be improved.
Disclosure of Invention
The invention mainly aims to provide a battery pack mounting structure and a rear floor assembly, and aims to solve the technical problems that the existing battery pack mounting structure is low in strength and rigidity, driving safety performance is affected, and bearing performance needs to be improved.
To achieve the above object, the present invention provides a battery pack mounting structure, including:
the upper side of the mounting seat is used for installing a battery pack; and the number of the first and second groups,
and the connecting structure is arranged on the lower side of the mounting seat and used for connecting and fixing the mounting seat and the rear floor so as to form a first buffer cavity between the mounting seat and the rear floor.
Optionally, the connecting structure includes a plurality of support beams, each support beam includes a support main body and an extension portion extending downward from the outer periphery of the support main body, one end of the extension portion, which is away from the support main body, is used to connect with the rear floor, so that a second buffer cavity is defined among the support main body, the extension portion and the rear floor, and the lower side of the mounting seat is connected with the support main body.
Optionally, the support beams are arranged at intervals in the front-rear direction, each support beam extends in the transverse direction, and two ends of each support beam in the transverse direction are respectively used for being sequentially overlapped with the rear floor and the two rear longitudinal beams from top to bottom.
Optionally, the mounting seat includes a mounting main body, the mounting main body is used for installing the battery pack, a plurality of connecting portions are arranged at intervals along a front-rear direction of the mounting main body, the plurality of connecting portions and the plurality of supporting beams are arranged in a one-to-one correspondence manner, and each connecting portion is connected to the corresponding supporting main body.
Optionally, each of the connecting portions is detachably connected to the corresponding support main body, the mounting base further includes a lower battery pack housing and a mounting beam, the mounting beam is used for mounting a battery, the mounting beam, the lower battery pack housing and the mounting main body are sequentially connected from top to bottom to form a triple-layer weld, the connecting portion is located on one side of the lower battery pack housing, which is far away from the mounting beam, and the mounting beam and each of the support beams are arranged in a cross manner.
Optionally, one end of the extension part, which is far away from the support main body, is bent towards a direction far away from the second buffer cavity to form a fixing part, and the fixing part is used for being sequentially overlapped with the rear floor and the two rear longitudinal beams from top to bottom.
Optionally, the battery pack mounting structure further includes a bearing portion and a plurality of supports, the bearing portion is disposed above the mounting seat, the plurality of supports and the plurality of supporting beams are arranged in a one-to-one correspondence manner, one end of each support is connected with the bearing portion, the other end of each support is connected with the corresponding supporting body, and each support is located on the periphery of the mounting seat.
Optionally, the upper end to the lower end of each support are arranged in a direction away from the first buffer cavity in an inclined manner, and the cross-sectional area of each support is gradually reduced from top to bottom.
In addition, the present invention also provides a rear floor assembly comprising:
the rear floor is provided with a cooling water pump mounting position, a battery pack mounting structure mounting position and a storage battery mounting position which are sequentially arranged in the transverse direction;
the two rear longitudinal beams extend along the front and rear directions respectively, are arranged at two ends of the rear floor in the transverse direction at intervals and are arranged at the lower side of the rear floor; and the number of the first and second groups,
the battery pack mounting structure according to any one of the above claims, wherein the connecting structure is provided at the battery pack mounting structure mounting position such that a distance between a rear end of the battery pack and rear ends of the two rear side members in the front-rear direction is greater than 200 mm.
Optionally, the rear floor assembly further includes a rear anti-collision beam, the rear anti-collision beam extends in the transverse direction, the rear floor and the rear anti-collision beam are arranged at intervals in the front-rear direction, so that the distance from the rear end of the battery pack to the rear end of the rear anti-collision beam is greater than 350 mm, and the two ends of the rear anti-collision beam in the transverse direction are respectively connected with the rear floor through energy absorption boxes.
The battery pack mounting structure comprises a mounting seat and a connecting structure, wherein the upper side of the mounting seat is used for mounting a battery pack, and the connecting structure is arranged on the lower side of the mounting seat and used for connecting and fixing the mounting seat and a rear floor so as to form a first buffer cavity between the mounting seat and the rear floor. According to the scheme, the first buffer cavity is formed between the mounting seat and the rear floor through the connecting structure, so that when the mounting seat receives impact force from a luggage compartment, the mounting seat can deform to a certain extent in the range of the first buffer cavity to eliminate partial impact force, and partial force can be transmitted to the rear floor through the connecting structure, so that the bearing performance of the battery pack mounting structure is improved; in addition, compare in current battery package direct mount on back floor, in this scheme the setting of mount pad itself also can improve battery package mounting structure's intensity and rigidity improve battery package mounting structure anti striking performance, avoid the battery package to receive the striking damage, ensure the safe of vehicle and travel.
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 a rear floor assembly according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is a schematic structural view of the mounting base of FIG. 1;
FIG. 4 is a schematic perspective view of another embodiment of a rear floor assembly of the present invention;
FIG. 5 is a schematic top view of the rear floor assembly of FIG. 4;
fig. 6 is a perspective view of the load bearing member and bracket of fig. 4.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects 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 indication is involved in the embodiment of the present invention, the directional indication is only used for explaining the relative positional relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is 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.
When the battery pack is arranged on the rear floor, the luggage compartment exerts force on the battery pack mounting structure, the existing battery pack mounting structure is not high in strength and rigidity, the driving safety performance is affected, and the bearing performance needs to be improved.
In view of the above, the invention provides a battery pack mounting structure to solve the problems that the existing battery pack mounting structure is low in strength and rigidity, the driving safety performance is affected, and the bearing performance needs to be improved. Fig. 1 to 6 show an embodiment of a battery pack mounting structure and a rear floor assembly according to the present invention.
Referring to fig. 1 to 3, the battery pack mounting structure 100 provided by the present invention includes a mounting base 1 and a connecting structure, wherein the upper side of the mounting base 1 is used for mounting a battery pack, and the connecting structure is disposed at the lower side of the mounting base 1 and is used for connecting and fixing the mounting base 1 and a rear floor 210, so that a first buffer cavity is formed between the mounting base 1 and the rear floor 210. In the scheme, the first buffer cavity is formed between the mounting seat 1 and the rear floor 210 through the connecting structure, so that when the mounting seat 1 receives impact force from a luggage compartment, the mounting seat 1 can deform to a certain extent in the range of the first buffer cavity to eliminate partial impact force, and a part of the force can be transmitted to the rear floor 210 through the connecting structure, so that the bearing performance of the battery pack mounting structure 100 is improved; in addition, compared with the conventional battery pack directly mounted on the rear floor 210, the installation seat 1 of the present embodiment can also improve the strength and rigidity of the battery pack mounting structure 100, thereby improving the safe driving performance of the vehicle. It is understood that the first buffer cavity may be an open cavity or a closed cavity. In this embodiment, the first buffer cavity is a cavity with openings formed around and arranged at an interval between the mounting base 1 and the rear floor 210. In the present specification, the vertical direction and the front-rear direction refer to the relative vertical direction and the front-rear direction of each component in a normal running state of the vehicle on the road, and when the specific posture is changed, the directional indication is changed accordingly.
In order to further improve the load-bearing performance of the battery pack mounting structure 100, in this embodiment, the connecting structure includes a plurality of support beams, each of the support beams includes a support main body 21 and an extension portion 22 extending downward from the outer periphery of the support main body 21, one end of the extension portion 22 away from the support main body 21 is used to connect with the rear floor 210, so that a second buffer cavity is defined among the support main body 21, the extension portion 22 and the rear floor 210, and the lower side of the mounting base 1 is connected with the support main body 21. Because the second buffer cavity is formed by enclosing the supporting main body 21, the extending part 22 and the rear floor 210, and the lower side of the mounting seat 1 is connected with the supporting main body 21, part of the force transmitted to the supporting main body 21 by the mounting seat 1 can be buffered and eliminated by the second buffer cavity, and the other part of the force can be transmitted to the rear floor 210 by the supporting main body 21 through the extending part 22, so that the impact force transmitted to the mounting seat 1 by a part of the luggage compartment can be eliminated for the second time. It should be noted that the number of the plurality of support beams is not limited, in this embodiment, two support beams are provided, and the two support beams are arranged at two ends of the mounting base 1 at intervals.
Each of the support beams may extend in the front-rear direction, or may extend in other directions, which is not limited herein. In this embodiment, the support beams are spaced apart from each other in the front-rear direction, each support beam extends in the transverse direction, and two ends of each support beam in the transverse direction are respectively used for overlapping the rear floor 210 and the two rear longitudinal beams 220 from top to bottom. In the scheme, each supporting beam extends along the transverse direction, and two ends of each supporting beam in the transverse direction are respectively overlapped with the rear floor 210 and the two rear longitudinal beams 220 in sequence to form three-layer welding, so that a stable mounting structure is formed, and the connecting strength is improved. Meanwhile, the force transmitted to the support beam by the mounting base 1 is transmitted to the two rear longitudinal beams 220 through the rear floor 210, so that the force is further dispersed, and the bearing performance of the battery pack mounting structure 100 is improved.
In order to further improve the connection strength between the extension part 22 and the rear floor 210, one end of the extension part 22, which is far away from the support main body 21, is bent towards the direction far away from the second buffer cavity to form a fixing part 23, and the fixing part 23 is used for being sequentially overlapped with the rear floor 210 and the two rear longitudinal beams 220 from top to bottom. The arrangement of the fixing portion 23 increases the connection area between the extension portion 22 and the rear floor 210, so that the connection between the extension portion 22 and the rear floor 210 is more stable and firm, and the force transmitted to the rear floor 210 via the support beam is more uniform.
Further, the mounting base 1 includes a mounting main body 11, the mounting main body 11 is used for mounting the battery pack, a plurality of connecting portions 12 are arranged at intervals along the front-rear direction of the mounting main body 11, the plurality of connecting portions 12 are arranged in one-to-one correspondence with the plurality of support beams, and each connecting portion 12 is connected to the corresponding support main body 21. It should be noted that, the mounting body 11 may be provided with a lightening hole 31 to achieve light weight; the number of the connecting portions 12 is not limited, in this embodiment, two connecting portions 12 are arranged at intervals along the front-rear direction, two connecting plates are arranged at intervals along the transverse direction of the two connecting portions 12 located in the front-rear direction, and each connecting plate is connected with the corresponding supporting beam. Further, each of the connecting portions 12 is connected to the support main body 21 by a bolt.
Furthermore, each of the connecting portions 12 is detachably connected to the corresponding support body 21, the mounting base 1 further includes a lower battery pack housing and a mounting beam, the mounting beam is used for mounting a battery, the mounting beam, the lower battery pack housing and the mounting body 11 are sequentially connected from top to bottom to form a triple layer welding, the connecting portions 12 are located on one side of the lower battery pack housing, which is far away from the mounting beam, and the mounting beam and the support beams are arranged in a cross manner. In this scheme, the setting of installation roof beam is on the one hand with the installation battery, and on the other hand plays the effect of strengthening rib, improves the intensity of casing under the battery package. In addition, because the mounting beam, the lower casing of the battery pack and the mounting main body 11 are sequentially connected from top to bottom, and each connecting part 12 is detachably connected with the supporting main body 21, the mounting base 1 can be integrally mounted and dismounted through the mounting beam when the battery pack is mounted and dismounted, and the operation is convenient. It should be noted that, the extending direction of the mounting beam is not limited, in this embodiment, the mounting beam extends along the front-back direction, a plurality of mounting beams are arranged along the transverse direction at intervals, and two ends of the mounting beam in the front-back direction are located above the supporting main body 21.
Further, referring to fig. 4 to 6, the battery pack mounting structure 100 further includes a bearing portion 3 and a plurality of brackets 4, the bearing portion 3 is disposed above the mounting seat 1, the plurality of brackets 4 are disposed in one-to-one correspondence with the plurality of support beams, one end of each bracket 4 is connected to the bearing portion 3, the other end is connected to the corresponding support main body 21, and each bracket 4 is located on the periphery of the mounting seat 1. The load-bearing part 3 is arranged to further improve the load-bearing performance of the battery pack mounting structure 100, and the force from the luggage compartment is transmitted to the load-bearing part 3 and then transmitted to the supporting beam through the load-bearing part 3, so that the mounting seat 1 and the battery pack arranged on the mounting seat 1 are pre-protected; when the force borne by the bearing part 3 reaches the bearing limit, the mounting seat 1 and the bearing part 3 bear the force from the luggage compartment together, so that the bearing performance of the battery pack mounting structure 100 is improved; in addition, the brackets 4 are respectively arranged on the peripheral sides of the mounting seat 1, namely on the peripheral sides of the battery pack, so that the risk of battery leakage caused by the fact that the bracket collides and invades the battery pack when the vehicle collides after the rear collision is avoided. It should be noted that the bearing part 3 and the mounting seat 1 are arranged at an interval in the vertical direction, and a lightening hole 31 is further formed through the bearing part 3 to achieve light weight, and in this embodiment, the bearing part 3 is formed by stamping a sheet metal. In addition, the side of the bracket 4 is also provided with a reinforcing rib which extends along the vertical direction to improve the strength of the bracket 4.
Furthermore, in order to facilitate the mounting and dismounting of the brackets 4 and the support body 21, the upper end to the lower end of each bracket 4 are inclined in a direction away from the first buffer cavity, and the cross-sectional area of each bracket 4 is gradually reduced from top to bottom. It is understood that the bracket 4 may be formed by stamping a metal plate or cast by aluminum alloy, which is not limited herein. The connection form of the load-bearing part 3 and the bracket 4 is not limited, and may be welding, riveting, or bolting.
In addition, referring to fig. 4 and 5, the present invention further provides a rear floor assembly 200, which includes a rear floor 210, two rear longitudinal beams 220 and the battery pack mounting structure 100, wherein the rear floor 210 has a cooling water pump mounting position 210a, a battery pack mounting structure 100 mounting position and a storage battery mounting position 210b, which are sequentially arranged in a transverse direction; the two rear longitudinal beams 220 extend in the front-rear direction, and the two rear longitudinal beams 220 are arranged at the two ends of the rear floor 210 in the transverse direction at intervals and are arranged at the lower side of the rear floor 210; the connecting structure is arranged at the mounting position of the battery pack mounting structure 100, so that the distance between the rear end of the battery pack and the rear ends of the two rear longitudinal beams 220 in the front-rear direction is greater than 200 mm. According to the arrangement, the storage battery is arranged on the storage battery mounting position 210b, the cooling water pump is arranged on the cooling water pump mounting position 210a, so that the storage battery and the cooling water pump are arranged on two sides of the battery pack and are far away from a rear-row seat, and the influence of odor, liquid leakage and vibration and noise caused by the operation of the water pump on passengers, particularly the comfort of the rear row, is eliminated to the maximum extent; in addition, the distance between the rear end of the battery pack and the rear ends of the two rear side members 220 in the front-rear direction is greater than 200 mm, so that the battery pack is prevented from being impacted during rear collision or rear-end collision.
It should be noted that, the detailed structure of the battery pack mounting structure 100 in the rear floor assembly 200 may refer to the above-mentioned embodiment of the battery pack mounting structure 100, and is not described herein again; since the battery pack mounting structure 100 is used in the rear floor assembly 200 of the present invention, the embodiment of the rear floor assembly 200 of the present invention includes all technical solutions of all embodiments of the battery pack mounting structure 100, and the achieved technical effects are also completely the same, and are not described herein again.
In order to further avoid the battery pack from being collided in the early and late collision or the rear collision, the rear floor assembly 200 further comprises a rear collision beam 230, the rear collision beam 230 extends in the transverse direction, the rear floor 210 and the rear collision beam 230 are arranged at intervals in the front and rear direction, so that the distance from the rear end of the battery pack to the rear end of the rear collision beam 230 is greater than 350 mm, and the two ends of the rear collision beam 230 in the transverse direction are respectively connected with the rear floor 210 through energy absorption boxes 231. On one hand, the rear anti-collision beam 230 and the rear floor 210 are arranged at intervals along the front-rear direction, so that the rear anti-collision beam can play a role in buffering rear collision, and on the other hand, the two ends of the rear anti-collision beam 230 in the transverse direction are connected with the rear floor 210 through the energy absorption boxes 231, so that the energy absorption boxes 231 can absorb part of the collision force, and the battery pack is prevented from being damaged in rear collision.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A battery pack mounting structure, comprising:
the upper side of the mounting seat is used for installing a battery pack; and the number of the first and second groups,
the connecting structure is arranged on the lower side of the mounting seat and used for connecting and fixing the mounting seat and a rear floor so as to form a first buffer cavity between the mounting seat and the rear floor;
the connecting structure comprises a plurality of supporting beams, each supporting beam comprises a supporting main body and an extending part which extends downwards from the periphery of the supporting main body, one end of each extending part, which is far away from the supporting main body, is used for being connected with the rear floor, so that a second buffer cavity is formed among the supporting main body, the extending parts and the rear floor in an enclosing manner, and the lower side of the mounting seat is connected with the supporting main body;
the battery pack mounting structure further comprises a bearing part and a plurality of supports, the bearing part is arranged above the mounting seat, the plurality of supports and the plurality of support beams are arranged in a one-to-one correspondence manner, one end of each support is connected with the bearing part, the other end of each support is connected with the corresponding support main body, and each support is located on the periphery of the mounting seat;
the upper end to the lower end of each support are obliquely arranged in the direction far away from the first buffer cavity, and the cross-sectional area of each support is gradually reduced from top to bottom;
wherein the first buffer cavity and the second buffer cavity can deform when the mounting seat is subjected to impact force from a luggage compartment.
2. The battery pack mounting structure according to claim 1, wherein a plurality of the support beams are arranged at intervals in the front-rear direction, and each of the support beams extends in the lateral direction, and both ends of each of the support beams in the lateral direction are respectively adapted to overlap the rear floor and the two rear side members in this order from top to bottom.
3. The battery pack mounting structure according to claim 2, wherein the mounting base includes a mounting body for mounting the battery pack, and the mounting body is provided with a plurality of connecting portions at intervals in a front-rear direction, the plurality of connecting portions being provided in one-to-one correspondence with the plurality of support beams, and each of the connecting portions being connected to the corresponding support body.
4. The battery pack mounting structure according to claim 3, wherein each of the connecting portions is detachably connected to the corresponding support main body, the mounting base further includes a battery pack lower case and a mounting beam for mounting a battery, the mounting beam, the battery pack lower case and the mounting main body are sequentially connected from top to bottom to form triple layer welding, the connecting portion is located on a side of the battery pack lower case away from the mounting beam, and the mounting beam intersects with each of the support beams.
5. The battery pack mounting structure of claim 1, wherein an end of the extending portion away from the support body is bent away from the second buffer cavity to form a fixing portion, and the fixing portion is configured to overlap the rear floor and the two rear longitudinal beams sequentially from top to bottom.
6. A rear floor assembly, comprising:
the rear floor is provided with a cooling water pump mounting position, a battery pack mounting structure mounting position and a storage battery mounting position which are sequentially arranged in the transverse direction;
the two rear longitudinal beams extend along the front and rear directions respectively, are arranged at two ends of the rear floor in the transverse direction at intervals and are arranged at the lower side of the rear floor; and (c) a second step of,
the battery pack mounting structure according to any one of claims 1 to 5, wherein the connecting structure is provided at the battery pack mounting structure mounting position such that a distance in a front-rear direction between a rear end of the battery pack and rear ends of the two rear side members is greater than 200 mm.
7. The rear floor assembly of claim 6, further comprising a rear impact beam extending in a lateral direction, wherein the rear floor and the rear impact beam are spaced apart in a front-to-rear direction such that a distance from a rear end of the battery pack to a rear end of the rear impact beam is greater than 350 mm, and wherein the rear impact beam is connected to the rear floor via an energy absorption box at each of the lateral ends thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110701290.2A CN113246711B (en) | 2021-06-23 | 2021-06-23 | Battery package mounting structure and back floor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110701290.2A CN113246711B (en) | 2021-06-23 | 2021-06-23 | Battery package mounting structure and back floor assembly |
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| Publication Number | Publication Date |
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| CN113246711A CN113246711A (en) | 2021-08-13 |
| CN113246711B true CN113246711B (en) | 2022-08-09 |
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| CN202110701290.2A Active CN113246711B (en) | 2021-06-23 | 2021-06-23 | Battery package mounting structure and back floor assembly |
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