CN111055666B - Power battery package assembly rear end protective structure and new energy automobile - Google Patents

Power battery package assembly rear end protective structure and new energy automobile Download PDF

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Publication number
CN111055666B
CN111055666B CN201911373622.8A CN201911373622A CN111055666B CN 111055666 B CN111055666 B CN 111055666B CN 201911373622 A CN201911373622 A CN 201911373622A CN 111055666 B CN111055666 B CN 111055666B
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CN
China
Prior art keywords
power battery
plate
battery pack
rear end
pack assembly
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CN201911373622.8A
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Chinese (zh)
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CN111055666A (en
Inventor
宋永辉
王伟
陈志超
宋衍猛
孙玉
宋红双
丁伟东
迟明
樊鹏宇
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Great Wall Motor Co Ltd
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Great Wall Motor Co Ltd
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Publication of CN111055666A publication Critical patent/CN111055666A/en
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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
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/66—Arrangements of batteries
    • 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
    • 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
    • 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)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The invention provides a rear end protection structure of a power battery pack assembly and a new energy automobile, wherein the rear end protection structure of the power battery pack assembly is used for protecting the rear end part of the power battery pack assembly and comprises a structure body consisting of an upper protection plate and a lower protection plate which are fastened and fixedly connected together up and down, a plurality of first connecting parts connected with the power battery pack assembly are constructed on one side of the structure body, and a plurality of second connecting parts connected with a rear auxiliary frame assembly in the automobile bearing the power battery pack assembly are constructed on the other side of the structure body relative to the first connecting parts. The rear end protection structure of the power battery pack assembly can protect the rear end part of the power battery pack assembly and can reduce the probability of damage to the rear end part of the power battery pack assembly.

Description

Power battery package assembly rear end protective structure and new energy automobile
Technical Field
The invention relates to the technical field of new energy automobiles, in particular to a rear end protection structure of a power battery pack assembly for protecting the power battery pack assembly in a new energy automobile, and meanwhile, the invention also relates to the new energy automobile provided with the rear end protection structure of the power battery pack assembly.
Background
With the development of power battery technology, new energy vehicles using power batteries as the only or main energy source are increasingly paid more attention, and various technical developments on new energy vehicles have become important contents for various vehicles and enterprises. The power battery pack assembly in the new energy automobile is generally positioned at the lower part of an automobile body floor, and the protection of a battery pack body and related electrical elements at the rear end part of the power battery pack assembly is mostly designed to be free of special protection, or is protected by adopting a plastic protection plate for wrapping, protecting through a single-layer steel plate, protecting by utilizing a battery pack protection beam structure and the like.
Among the above protection form, plastics backplate parcel mode structure is complicated, and waterproof crashproof effect is relatively poor, and certain guard action can be played to the individual layer steel sheet, but its effect is general, and battery package protective beam structure can avoid battery package body structure to be destroyed when the car holds in the palm the end, nevertheless it also has the not enough that can't form the full coverage protection. For a new energy automobile, if the rear end of the power battery assembly has no protection structure or the adopted protection structure has poor effect, it is obvious that when the new energy automobile is used in daily life, especially when the automobile falls, passes through piles, is impacted by a curb stone and the like, the related structure of the rear end part of the power battery pack assembly is easily damaged, and the normal use of the whole automobile is affected.
Disclosure of Invention
In view of this, the present invention is directed to a rear end protection structure of a power battery pack assembly, which can be used for protecting a rear end of the power battery pack assembly in a new energy vehicle.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the utility model provides a power battery package assembly rear end protective structure for constitute the protection to power battery package assembly rear end position, just power battery package assembly rear end protective structure includes the structure body that upper protective plate and lower protective plate constitute that links firmly together by upper and lower lock, in one side on the structure body is constructed a plurality of first connecting portion in order to be connected with power battery package assembly, and for first connecting portion, in opposite side on the structure body is constructed a plurality of in order and bear the weight of the second connecting portion that back sub vehicle frame assembly in the car of power battery package assembly is connected.
Furthermore, each first connecting portion and each second connecting portion are connecting holes formed in the structure body, and the connecting holes penetrate through the upper protection plate and the lower protection plate.
Furthermore, corresponding to the connecting holes, bulges are formed on the upper protection plate and the lower protection plate, and the connecting holes penetrate through the bulges.
Furthermore, the section of the upper guard plate is in an inverted U shape, and a support pipe is clamped between the upper guard plate and the lower guard plate corresponding to the connecting hole.
Further, the bottom guard plate is formed with raised reinforcing ribs, and the reinforcing ribs can connect at least part of the projections on the bottom guard plate together due to the extension on the bottom guard plate.
Further, go up the backplate including being the well connecting plate of straight form, and link firmly in the upper left plate and the upper right plate at well connecting plate both ends, each the connecting hole distribute in upper left plate with upper right plate department, just upper left plate with upper right plate all because of with on the backplate down the extension configuration of strengthening rib is unanimous and one end is the branching form.
Furthermore, a planar lifting contact part is formed on the lower guard plate corresponding to the middle connecting plate.
Furthermore, the structure body is provided with a first edge which is located on one side of the first connecting portion and is in a linear shape, and a second edge which is located on one side of the second connecting portion and extends to two ends of the first edge, the second edge is in an arc shape, the upper protection plate and the lower protection plate on the first edge are arranged in a parallel and level mode, the lower protection plate on the second edge extends outwards relative to the upper protection plate, and a flanging is formed on the extending edge of the lower protection plate.
Furthermore, a plurality of water drainage holes are formed in the lower guard plate, the flanging located in the middle of the second edge is provided with an upward-inclined convex part, and the convex size of the convex part is gradually reduced from the middle to two sides.
Compared with the prior art, the invention has the following advantages:
according to the rear end protection structure of the power battery pack assembly, the structure body is formed by buckling the upper protection plate and the lower protection plate, and particularly, two sides of the structure body are respectively connected with the power battery pack assembly and the rear auxiliary frame assembly, so that the protection structure has better structural strength, meanwhile, the rear end part of the power battery pack assembly can be comprehensively protected by utilizing the unfolding protection between the rear auxiliary frame assembly and the power battery pack assembly, and the rear end part of the power battery pack assembly can be well protected.
In addition, the connecting part adopts the connecting hole, the structure is simple, the connecting operation is convenient, the connecting hole is positioned on the bulge, the structural strength of the connecting hole part can be improved, and the arrangement of the supporting pipe can further improve the connecting reliability.
In addition, the lower guard plate and the whole structure body can be better improved in structural strength through arrangement of the reinforcing ribs and the flanges, the dynamic rigidity of the mounting point of the control arm of the rear auxiliary frame assembly and the lateral rigidity of the whole vehicle can be improved, and the operation stability of the whole vehicle is improved. The upper guard plate is formed along with the extension configuration of the reinforcing ribs, so that the upper guard plate is beneficial to weight reduction of the upper guard plate on the basis of ensuring the structural property of the structure body, and the functional design of the lower guard plate is convenient. The lifting contact part and the middle connecting plate are arranged correspondingly, so that the structural strength of the lifting part can be improved, the design of the drain hole can reduce the corrosion risk of the protective structure, and the outer convex part at the middle flanging part of the second edge can reduce the risk of damage to the power battery pack assembly when the automobile is backed.
Another objective of the present invention is to provide a new energy vehicle, which includes a vehicle body having a rear sub-frame assembly, and a power battery pack assembly is supported at the bottom of the vehicle body, the power battery pack assembly and the rear sub-frame assembly are respectively connected to a lower floor assembly in the vehicle body, and the rear end portion of the power battery pack assembly is provided with the rear end protection structure of the power battery pack assembly, the rear end protection structure of the power battery pack assembly is connected to the power battery pack assembly and the rear sub-frame assembly, and the bottom surface of the rear end protection structure of the power battery pack assembly is disposed in a downward inclination shape along the direction from the rear sub-frame assembly to the power battery pack assembly.
The new energy automobile can effectively protect the rear end part of the power battery pack by adopting the protection structure, can improve the mounting point dynamic rigidity of the control arm of the rear auxiliary frame assembly and the lateral rigidity of the whole automobile, and improves the operation stability of the whole automobile, thereby having good practicability.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of a rear end protection structure of a power battery pack assembly according to a first embodiment of the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a schematic structural diagram of a lower guard plate according to a first embodiment of the present invention;
fig. 4 is an application schematic diagram of a rear end protection structure of a power battery pack assembly according to a second embodiment of the present invention;
FIG. 5 is a schematic view of a falling condition of an automobile according to a second embodiment of the present invention;
fig. 6 is a schematic view of a working condition of a curb according to a second embodiment of the present invention;
description of reference numerals:
1-a structure body, 2-a power battery pack assembly, 3-a rear auxiliary frame assembly and 4-a lower floor assembly;
101-lower guard plate, 102-upper guard plate, 103-battery pack connecting hole, 104-rear subframe connecting hole, 105-first edge, 106-second edge, 107-supporting tube;
1011-lower guard plate projection, 1012-reinforcing rib, 1013-flanging, 1014-external projection, 1015-drainage hole, 1016-lifting contact part;
1021-middle connecting plate, 1022-left upper plate, 1023-right upper plate, 1024-upper guard plate protrusion.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example one
The embodiment relates to a rear end protection structure of a power battery pack assembly, which is used on a new energy automobile using the power battery pack as the only or partial power source and can protect the rear end position of the power battery pack assembly in the automobile. The rear end part of the power battery pack assembly is also close to one end of the tail of the vehicle by taking the length direction of the vehicle as a reference.
In fig. 1 and fig. 2, the rear end protection structure of the power battery pack assembly of the present embodiment integrally includes a structural body 1 formed by an upper protection plate 102 and a lower protection plate 101 fastened together in an up-down manner, and a plurality of first connecting portions are configured on one side of the structural body 1 to be connected to the power battery pack assembly 2, and a plurality of second connecting portions are configured on the other side of the structural body 1 to be connected to a rear sub-frame assembly 3 of the vehicle carrying the power battery pack assembly 2.
In a preferred embodiment, each of the first connecting portion and the second connecting portion is a connecting hole provided on the structural body 1, and each connecting hole is provided through the upper guard plate 102 and the lower guard plate 101, and for convenience of description, each connecting hole in the first connecting portion is referred to as a battery pack connecting hole 103, and each connecting hole in the second connecting portion is referred to as a rear subframe connecting hole 104. When the structure body 1 is connected with the power battery pack assembly 2 and the rear auxiliary frame assembly 3, the structure body is specifically connected through a bolt pair structure arranged through the connecting holes.
In order to improve the structural strength of the connecting hole portion, the present embodiment is configured with protrusions corresponding to the connecting holes, and the connecting holes are formed through the corresponding protrusions on the upper protection plate 102 and the lower protection plate 101. Referring to fig. 3, the protrusions on the upper protective plate 102 are embodied as upper protective plate protrusions 1024, and the protrusions on the lower protective plate 101 are embodied as lower protective plate protrusions 1011. Each of the upper shield projection 1024 and the lower shield projection 1011 may be a boss-like raised structure which is formed by punching at a corresponding position on the upper shield 102 and the lower shield 101.
As also shown in fig. 2, the upper protector plate 102 in this embodiment has an inverted U-shaped cross section, and in order to further improve the structural strength at each connecting hole, a support pipe 107 is also interposed between the upper protector plate 102 and the lower protector plate 101, corresponding to each connecting hole. The support pipe 107 may be made of a common steel pipe, and may be welded to the lower guard plate protrusions 1011 of the lower guard plate 101, and then fixed between the upper and lower guard plates by welding between the upper guard plate 102 and the lower guard plate 101.
The upper protection plate 102 of this embodiment can be made of a single sheet metal as the lower protection plate 101, but as a more preferable embodiment, the upper protection plate 102 of this embodiment is specifically designed to include a middle connection plate 1021 in a straight shape, and a left upper plate 1022 and a right upper plate 1023 fixedly connected to two ends of the middle connection plate 1021. The middle connecting plate 1021 is welded with the left and right upper plates, and each rear subframe connecting hole 104 is distributed at the left upper plate 1022 and the right upper plate 1023 at two ends. By adopting the upper protective plate 102 with the structural form of the middle connecting plate 1021, the left upper plate 1022 and the right upper plate 1023, the upper protective plate 102 can be formed more easily as a whole on the basis of obtaining the flat middle connecting plate 1021, and the convenience of forming can be more obvious in the form of a bifurcated structure at one end of the left and right upper plates as described below.
Since the apron board 101 serves as a structural foundation in the entire structural body 1, in order to further improve the structural strength of the apron board 101, the present embodiment further forms a raised rib 1012 on the apron board 101, and as shown in fig. 3, the rib 1012 also connects at least a part of the apron board projections 1011 on the apron board 101 together due to the extension on the apron board 101. Meanwhile, the left upper plate 1022 and the right upper plate 1023 of the upper protection plate 102 are also consistent with the extending configuration of the reinforcing ribs 1012 on the lower protection plate 101, so that one end of the upper protection plate is forked.
In this embodiment, as a preferred embodiment of the integral protection structure, the structural body 1 is also designed to have a first edge 105 in a linear shape on one side of each first connection portion, and a second edge 106 on one side of the second connection portion and extending to both ends of the first edge 105, and the second edge 106 is in an arc shape. At this time, the upper protection plate 102 and the lower protection plate 101 at the first edge 105 are arranged flush with each other, and the lower protection plate 101 at the second edge 106 is arranged outwardly with respect to the upper protection plate 102, so that the boundary of the upper protection plate 102 corresponding to the second edge 106 is located inside the lower protection plate 101.
Corresponding to the overhang of the lower fender 101 on the side corresponding to the second edge 106, the present embodiment is configured with a flange 1013 at the overhanging edge of the lower fender 101, the flange 1013 may be, for example, several segments distributed at intervals along the arc edge of the lower fender 101, and the flange 1013 is configured at the middle position of the second edge 106, and it should be noted that the flange 1013 at the middle position of the second edge 106 is also provided with an upwardly inclined overhang 1014. The arrangement of the external protrusion 1014 can reduce the possibility of the power battery pack assembly 2 being damaged by the curb when the automobile is backed, which will be described in the second embodiment later.
In this embodiment, as a preferable configuration, the protruding dimension of the external protrusion 1014 may be set to gradually decrease from the middle to both sides as shown in fig. 3. In addition, in the present embodiment, a plurality of drainage holes 1015 are formed on the lower protective plate 101, and a planar lifting contact portion 1016 is formed on the lower protective plate 101 corresponding to the middle connection plate 1021. The lifting contact portion 1016 is a plane formed in the middle of the lower guard plate 101, and the plane is opposite to the straight middle connecting plate 1021, so that the structural rigidity of the lifting contact portion 1016 can be improved, and the lifting safety can be ensured.
The protective structure of this embodiment self can have better structural strength to utilize its expansion protection between sub vehicle frame assembly 3 and power battery package assembly 2 in the back, also can form comparatively comprehensive protection to the rear end position of power battery package assembly 2, thereby the realization that can be better is to the protection of power battery package assembly 2 rear end position.
Example two
The embodiment relates to a new energy automobile, which comprises an automobile body with a rear auxiliary frame assembly 3, wherein a power battery pack assembly 2 is borne at the bottom of the automobile body, the power battery pack assembly 2 and the rear auxiliary frame assembly 3 are respectively connected with a lower floor assembly 4 in the automobile body, and a rear end protection structure of the power battery pack assembly in the first embodiment is arranged at the rear end part of the power battery pack assembly 2.
As shown in fig. 4, the rear end protection structure of the power battery pack assembly, that is, the structure body 1, is connected to the power battery pack assembly 2 and the rear subframe assembly 3 through the bolt pair structure, and it should be noted that the bottom surface of the rear end protection structure of the power battery pack assembly of this embodiment is also disposed in a downward inclination shape along the direction from the rear subframe assembly 3 to the power battery pack assembly 2.
The new energy automobile of this embodiment is through adopting the protective structure in embodiment one, and the expansion protection that can utilize it between sub vehicle frame assembly 3 and power battery package assembly 2 in the back can form comparatively comprehensive protection to the rear end position of power battery package assembly 2. At this moment, for example as shown in fig. 5, when the automobile falls down the operating mode, the automobile rear wheel falls to the ground through the abrupt slope in-process, and structure body 1 can effectively protect the contact of battery package assembly 2 rear end position and barriers such as stake, avoids damaging. As shown in fig. 6, in the working condition of the curb when the automobile is backing, the design of the convex part 1014 at the position of the middle flange 1013, which is low in the front and high in the back of the structural body 1, can guide the curb to move forward and support the structural body 1 and the tail of the automobile, thereby avoiding the curb from being damaged by the impact.
In addition, through the setting of each wash port 1015 in the structure body 1, it cooperates the holistic slope design of structure body 1 in this embodiment, also can make the ponding that gets into on the structure body 1 in time flow out, also can reduce the risk of protective structure corrosion from this.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. The utility model provides a power battery package assembly rear end protective structure for constitute the protection to power battery package assembly (2) rear end position, its characterized in that:
the rear end protection structure of the power battery pack assembly comprises a structure body (1) consisting of an upper protection plate (102) and a lower protection plate (101) which are fastened and fixed together up and down, wherein a plurality of first connecting parts connected with the power battery pack assembly (2) are constructed on one side of the structure body (1), and a plurality of second connecting parts connected with a rear auxiliary frame assembly (3) in an automobile bearing the power battery pack assembly (2) are constructed on the other side of the structure body (1) relative to the first connecting parts;
the structure body (1) is provided with a first edge (105) which is located on one side of the first connecting portion and is in a linear shape, and a second edge (106) which is located on one side of the second connecting portion and extends to two ends of the first edge (105), wherein the second edge (106) is in an arc shape.
2. The rear end protection structure of the power battery pack assembly according to claim 1, wherein: each first connecting portion and each second connecting portion are connecting holes formed in the structure body (1), and the connecting holes penetrate through the upper protection plate (102) and the lower protection plate (101).
3. The rear end protection structure of the power battery pack assembly according to claim 2, wherein: protrusions are formed on both the upper protection plate (102) and the lower protection plate (101) corresponding to the connection holes, and the connection holes are arranged through the protrusions.
4. The rear end protection structure of the power battery pack assembly according to claim 3, wherein: the section of the upper protection plate (102) is in an inverted U shape and corresponds to the connecting hole, and a support pipe (107) is clamped between the upper protection plate (102) and the lower protection plate (101).
5. The rear end protection structure of the power battery pack assembly according to claim 3, wherein: the lower protection plate (101) is provided with a raised reinforcing rib (1012), and the reinforcing rib (1012) can connect at least part of the protrusions on the lower protection plate (101) together due to the extension on the lower protection plate (101).
6. The rear end protection structure of the power battery pack assembly according to claim 5, wherein: the upper protection plate (102) comprises a middle connecting plate (1021) which is straight, and a left upper plate (1022) and a right upper plate (1023) which are fixedly connected to two ends of the middle connecting plate (1021), wherein the connecting holes are distributed on the left upper plate (1022) and the right upper plate (1023), and one ends of the left upper plate (1022) and the right upper plate (1023) are forked due to the consistency of the extending configuration of the reinforcing ribs (1012) on the lower protection plate (101).
7. The rear end protection structure of the power battery pack assembly according to claim 6, wherein: a planar lifting contact part (1016) is formed on the lower protection plate (101) corresponding to the middle connecting plate (1021).
8. The rear end protection structure of the power battery pack assembly according to any one of claims 1 to 7, wherein: the upper guard plate (102) and the lower guard plate (101) at the first edge (105) are arranged flush with each other, the lower guard plate (101) at the second edge (106) is arranged in an overhanging manner relative to the upper guard plate (102), and flanges (1013) are formed on overhanging edges of the lower guard plate (101).
9. The power battery pack assembly rear end protection structure of claim 8, wherein: a plurality of drainage holes (1015) are formed on the lower guard plate (101), the flange (1013) in the middle of the second edge (106) is provided with an upward-inclined convex part (1014), and the convex size of the convex part (1014) is gradually reduced from the middle to two sides.
10. The utility model provides a new energy automobile, includes the automobile body that has back sub vehicle frame assembly (3) to in the bottom of automobile body bears power battery package assembly (2), power battery package assembly (2) with back sub vehicle frame assembly (3) respectively with lower floor assembly (4) in the automobile body are connected, its characterized in that: the rear end protection structure of the power battery pack assembly according to any one of claims 1 to 9 is arranged at the rear end of the power battery pack assembly (2), the rear end protection structure of the power battery pack assembly is connected with the power battery pack assembly (2) and the rear auxiliary frame assembly (3), and the bottom surface of the rear end protection structure of the power battery pack assembly is arranged in a downward inclination shape along the direction from the rear auxiliary frame assembly (3) to the power battery pack assembly (2).
CN201911373622.8A 2019-12-27 2019-12-27 Power battery package assembly rear end protective structure and new energy automobile Active CN111055666B (en)

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CN201911373622.8A CN111055666B (en) 2019-12-27 2019-12-27 Power battery package assembly rear end protective structure and new energy automobile

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Application Number Priority Date Filing Date Title
CN201911373622.8A CN111055666B (en) 2019-12-27 2019-12-27 Power battery package assembly rear end protective structure and new energy automobile

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CN111055666B true CN111055666B (en) 2021-09-07

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6515980B1 (en) * 2017-11-13 2019-05-22 マツダ株式会社 Battery mounting structure of electric vehicle
CN207826149U (en) * 2018-01-30 2018-09-07 北京车和家信息技术有限公司 Vehicle protection device, vehicle subframe and vehicle
CN209150176U (en) * 2018-10-25 2019-07-23 本田技研工业(中国)投资有限公司 Battery guard plate and vehicle battery protection structure comprising same
CN209776593U (en) * 2018-12-27 2019-12-13 江苏敏安电动汽车有限公司 Lower guard plate of automobile front cabin and electric automobile

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