CN116620005A - Battery pack middle part mount and battery pack - Google Patents

Battery pack middle part mount and battery pack Download PDF

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Publication number
CN116620005A
CN116620005A CN202310568132.3A CN202310568132A CN116620005A CN 116620005 A CN116620005 A CN 116620005A CN 202310568132 A CN202310568132 A CN 202310568132A CN 116620005 A CN116620005 A CN 116620005A
Authority
CN
China
Prior art keywords
battery pack
bolt
nut
battery
bolt head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310568132.3A
Other languages
Chinese (zh)
Inventor
何全福
何路
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongfeng Nissan Passenger Vehicle Co
Original Assignee
Dongfeng Nissan Passenger Vehicle Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongfeng Nissan Passenger Vehicle Co filed Critical Dongfeng Nissan Passenger Vehicle Co
Priority to CN202310568132.3A priority Critical patent/CN116620005A/en
Publication of CN116620005A publication Critical patent/CN116620005A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Sustainable Development (AREA)
  • Power Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Battery Mounting, Suspending (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

The invention discloses a middle part mount of a battery pack, which comprises a stud bolt, a sealing ring, an upper nut, an upper fixing bolt of the battery pack and a lower nut, wherein the upper fixing bolt of the battery pack is used for penetrating through a vehicle body beam and then connecting with the stud bolt; the stud comprises an upper bolt head, a lower bolt head and a sealing flange plate, wherein an upper external thread is arranged on the outer surface of the upper bolt head, an upper internal thread is arranged on the inner surface of the upper bolt head, the upper external thread is used for being matched with an upper nut, the upper internal thread is used for being matched with an upper fixing bolt of a battery pack, a lower external thread is arranged on the outer surface of the lower bolt head, the lower external thread is used for being matched with a lower nut, the sealing flange plate is used for being matched with a sealing ring, and an upper cover of the battery pack is tightly pressed between the sealing flange plate and the upper nut. The invention also discloses a battery pack. The invention can meet the requirements of light weight, low cost, compact structure and tightness while increasing the overall rigidity of the connection between the battery pack and the vehicle body.

Description

Battery pack middle part mount and battery pack
Technical Field
The invention relates to the technical field of battery packs, in particular to a middle mounting of a battery pack and the battery pack.
Background
At present, part of battery packs in the market are not provided with middle mounting, so that a plurality of transverse and longitudinal reinforcing beams are added to ensure the structural strength of the battery packs, and the frame structure of the battery packs is heavier;
the part is provided with a battery pack with a middle part mounted, and a lower fixing structure is adopted. The bolts penetrate the whole battery pack up and down, the sealing structure is complex, and water leakage is easy; the middle part is provided with a bolt sleeve, which occupies the internal space of the battery pack and is complicated to weld; the middle fixing structure is more and more complex, and the tying efficiency is low; the head of the lower fixing structure is larger, and the Z-direction space is occupied; the bolt head needs to be particularly protected against stone-strike and corrosion.
Therefore, it is necessary to design a battery pack center mount and a battery pack that can satisfy the light weight, low cost, compact structure, and sealability while increasing the overall rigidity of the battery pack and the vehicle body connection.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the battery pack and the middle mount of the battery pack, which can increase the overall rigidity of the connection between the battery pack and a vehicle body and simultaneously can meet the requirements of light weight, low cost, compact structure and tightness.
The technical scheme of the invention provides a middle part mounting of a battery pack, which comprises a stud bolt, a sealing ring, an upper nut, a battery pack upper fixing bolt and a lower nut, wherein the battery pack upper fixing bolt is used for penetrating through a vehicle body beam and then connecting with the stud bolt, and the lower nut is arranged in a frame beam of the battery pack;
the double-headed bolt comprises an upper bolt head, a lower bolt head and a sealing flange, wherein an upper external thread is arranged on the outer surface of the upper bolt head, an upper internal thread is arranged on the inner surface of the upper bolt head, the upper external thread is used for being matched with the upper nut, the upper internal thread is used for being matched with the upper fixing bolt of the battery pack, a lower external thread is arranged on the outer surface of the lower bolt head, the lower external thread is used for being matched with the lower nut, and the sealing flange is used for being matched with the sealing ring, and the sealing flange is used for compressing an upper cover of the battery pack between the upper nut.
Further, the sealing flange is located below the upper bolt head, a sealing groove is formed in the upper surface of the sealing flange, and the sealing ring is installed in the sealing groove.
Further, the battery pack upper cover is characterized by further comprising an upper cover nest, wherein the upper cover nest is arranged between the sealing flange plate and the upper nut and used for pressing the battery pack upper cover between the upper cover nest and the upper nut.
Further, the lower nut is a rivet nut, and the rivet nut is fixed in the frame cross beam.
The invention also provides a battery pack, which comprises a battery pack upper cover, a battery pack lower shell, a frame beam, a middle mount of the battery pack, an upper nut and an upper external thread of the stud bolt, wherein the frame beam is arranged above the battery pack lower shell, the battery pack upper cover is buckled with the battery pack lower shell and is connected with the battery pack lower shell in a sealing way, the upper nut is matched with the upper external thread of the stud bolt, the battery pack upper cover is tightly pressed on the upper surface of the sealing flange, and the upper cover is nested and tightly pressed on the sealing ring embedded on the sealing flange.
Further, a battery module end plate is arranged on the frame beam, and the stud bolts penetrate through the battery module end plate and then are connected with the frame beam.
Further, a module pressing plate beam is arranged on the battery module end plate, the sealing flange plate is in contact with the upper surface of the module pressing plate beam, and the lower ends of the stud bolts penetrate through the module pressing plate beam.
Further, a bolt through hole is formed in the battery module end plate, a blind hole is formed in the frame beam, and the bolt through hole is aligned with the central axis of the blind hole.
Further, the battery pack upper fixing bolt comprises a bolt head and a bolt rod, the bolt head is fixedly connected with the vehicle body cross beam, the bolt rod is inserted into the upper bolt head and is connected with the upper inner thread, the top surface of the upper nut is attached to the vehicle body cross beam, and the battery pack is integrally locked on the vehicle body cross beam.
Further, the fastening torsion of the fixing screw on the battery pack is smaller than that of the stud bolts.
After the technical scheme is adopted, the method has the following beneficial effects:
the middle part of the battery pack can play a role in connecting the battery pack with the vehicle body cross beam, and the whole rigidity of the connection of the battery pack and the vehicle body is improved, meanwhile, the middle part of the battery pack is not communicated with the whole battery pack structure, so that the battery pack is good in tightness, more compact in structure, lighter in weight and low in cost.
Drawings
The present disclosure will become more readily understood with reference to the accompanying drawings. It should be understood that: the drawings are for illustrative purposes only and are not intended to limit the scope of the present invention. In the figure:
FIG. 1 is a schematic view of a battery pack according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a battery pack of an embodiment of the present invention after the center mount of the battery pack is coupled to a vehicle body cross member and the battery pack;
fig. 3 is a schematic view of a lower case of a battery pack, a frame cross member, and an end plate of a battery module according to an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3;
FIG. 5 is a cross-sectional view of the stud of FIG. 4;
FIG. 6 is a cross-sectional view of a modular platen beam;
FIG. 7 is a perspective view of a stud bolt;
FIG. 8 is a perspective view of the upper nut;
fig. 9 is a schematic view of the lower case of the battery pack;
fig. 10 is a cross-sectional view of a vehicle body cross member.
Reference numeral control table:
stud 1: an upper bolt head 11, a lower bolt head 12, a sealing flange 13, an upper external thread 111, an upper internal thread 112, a lower external thread 121 and a sealing groove 131;
fixing bolt 4 on the battery pack: a bolt head 41 and a bolt rod 42;
the sealing ring 2, the upper nut 3, the lower nut 5 and the upper cover nest 6;
the battery pack upper cover 10, the battery pack lower shell 20, the frame cross beam 30, the battery module end plate 40, the module pressure plate beam 50, the vehicle body cross beam 60, the battery pack middle mount 70, the blind holes 301 and the bolt through holes 401.
Detailed Description
Specific embodiments of the present invention will be further described below with reference to the accompanying drawings.
It is to be readily understood that, according to the technical solutions of the present invention, those skilled in the art may replace various structural modes and implementation modes with each other without changing the true spirit of the present invention. Accordingly, the following detailed description and drawings are merely illustrative of the invention and are not intended to be exhaustive or to limit the invention to the precise form disclosed.
Terms of orientation such as up, down, left, right, front, rear, front, back, top, bottom, etc. mentioned or possible to be mentioned in the present specification are defined with respect to the configurations shown in the drawings, which are relative concepts, and thus may be changed according to different positions and different use states thereof. These and other directional terms should not be construed as limiting terms.
In some embodiments of the present invention, as shown in fig. 1-2, the battery pack middle mount 70 includes a stud 1, a seal ring 2, an upper nut 3, a battery pack upper fixing bolt 4, and a lower nut 5, the battery pack upper fixing bolt 4 is used to connect with the stud 1 after passing through the vehicle body cross member 60, and the lower nut 5 is disposed in the frame cross member 30 of the battery pack;
the stud 1 comprises an upper bolt head 11, a lower bolt head 12 and a sealing flange 13, wherein an upper external thread 111 is arranged on the outer surface of the upper bolt head 11, an upper internal thread 112 is arranged on the inner surface, the upper external thread 111 is used for being matched with the upper nut 3, the upper internal thread 112 is used for being matched with the upper fixing bolt 4 of the battery pack, a lower external thread 121 is arranged on the outer surface of the lower bolt head 12, the lower external thread 121 is used for being matched with the lower nut 5, the sealing flange 13 is used for being matched with the sealing ring 2, and the upper cover 10 of the battery pack is tightly pressed between the sealing flange 13 and the upper nut 3.
Specifically, as shown in fig. 1, the battery pack includes a battery pack upper cover 10 and a battery pack lower case 20, the upper end of the battery pack middle mount 70 passes through the battery pack upper cover 10, the lower end is connected with a frame beam 30, and the frame beam 30 is mounted on the bottom surface of the battery pack lower case 20. Therefore, the middle mount 70 of the battery pack in this embodiment does not penetrate the whole battery pack, and the sealing performance can be ensured only by sealing the water inlet path between the middle mount 70 of the battery pack and the upper cover 10 of the battery pack.
As shown in fig. 2, the stud bolt 1 includes an upper bolt head 11, a lower bolt head 12, and a sealing flange 13, an outer surface of the upper bolt head 11 is provided with an upper external thread 111, an inner surface is provided with an upper internal thread 112, and an outer surface of the lower bolt head 12 is provided with a lower external thread 121.
The internal thread of the upper nut 3 is matched with the upper external thread 111;
the gasket 2 is mounted on the sealing flange 13 for sealing the gap at the upper lid 10 of the battery pack. The battery pack upper cover 10 is positioned between the upper nut 3 and the sealing flange 13, and after the upper nut 3 and the upper external threads 111 are screwed, the battery pack upper cover 10 and the sealing ring 2 are tightly pressed, so that good sealing performance is realized.
The external thread of the fixing bolt 4 on the battery pack is matched with the upper internal thread 112, and the fixing bolt 4 on the battery pack is fixedly connected with the vehicle body cross beam 60, so that the battery pack is hung on the vehicle body.
The lower nut 5 is fixed in the frame cross member 30, and the lower external thread 121 of the lower bolt head 12 of the stud bolt 1 is engaged with the internal thread of the lower nut 5.
In this embodiment, the battery pack can be stably connected to the vehicle body through the middle mount 70 of the battery pack, so that the overall rigidity of the connection between the battery pack and the vehicle body is increased.
The battery pack is not required to be penetrated through, so that the battery pack has compact overall structure, small occupied space, low cost and light weight, and only the gap between the battery pack upper cover 10 and the battery pack upper cover is required to be sealed, so that the tightness is better.
Preferably, as shown in fig. 5, the sealing flange 13 of the stud bolt 1 has an outer diameter larger than that of the upper bolt head 11, and is formed in a stepped structure, so that the structural strength of the body and the upper internal thread 112 can be enhanced.
Further, as shown in fig. 7, the sealing flange 13 is located below the upper bolt head 11, a sealing groove 131 is formed on the upper surface of the sealing flange 13, and the sealing ring 2 is installed in the sealing groove 131.
Further, as shown in fig. 2, the battery pack top cover 10 is further provided with a top cover nest 6, wherein the top cover nest 6 is arranged between the sealing flange 13 and the top nut 3 and is used for pressing the battery pack top cover 10 between the top cover nest 6 and the top nut 3.
Specifically, the upper surface of the upper cover nest 6 is attached to the lower surface of the battery pack upper cover 10, the lower surface of the upper cover nest 6 is attached to the upper surfaces of the seal ring 2 and the seal flange 13, and the upper surface of the battery pack upper cover 10 is attached to the lower surface of the upper nut 3. When the upper nut 3 is tightened, the battery pack upper cover 10 is compressed with the upper cover nest 6, the seal ring 2 and the seal flange 13. The upper cover nest 6 protects the battery pack upper cover 10, and is used for dispersing force on the battery pack upper cover 10 and preventing the battery pack upper cover 10 from being broken. At the same time, the upper cover nest 6 can be used as a positioning reference for the upward pressing of the sealing flange 13.
Further, as shown in fig. 2, the lower nut 5 is a rivet nut fixed in the frame cross member 30, and the bottom end of the lower nut 5 is spaced apart from the bottom surface of the frame cross member 30 by a certain vertical height.
In another embodiment of the present invention, as shown in fig. 1, 3 and 9, the battery pack includes an upper battery pack cover 10, a lower battery pack case 20, and a frame beam 30, where the frame beam 30 is disposed above the lower battery pack case 20, the upper battery pack cover 10 is buckled and hermetically connected with the lower battery pack case 20, and further includes a middle battery pack mount 70 in any of the above embodiments, the upper nut 3 is matched with an upper external thread 111 of the double-ended screw 1, the upper battery pack cover 10 is pressed onto an upper surface of the sealing flange 13, and the upper cover nest 6 is pressed onto the sealing ring 2 embedded on the sealing flange 13.
Specifically, as shown in fig. 1, the battery pack includes a battery pack upper cover 10 and a battery pack lower case 20, the battery pack upper cover 10 covers over the battery pack lower case 20, and a cavity is formed between the battery pack upper cover 10 and the battery pack lower case 20 for mounting an internal structure of the battery pack.
As shown in fig. 3, the battery pack center mount 70 is mounted in the battery pack housing. As shown in fig. 4 to 5, a partial schematic view of the battery pack upper cover 10, the upper nut 3 and the battery pack upper fixing bolt 4 are omitted.
As shown in fig. 9, the upper surface of the battery pack lower case 20 is provided with a frame beam 30, and the battery pack middle mount 70 is connected with the frame beam 30 such that the battery pack middle mount 70 does not need to pass through the battery pack lower case 20, thereby not needing to pass through the entire battery pack.
Further, as shown in fig. 4 to 5, the frame rail 30 is provided with a battery module end plate 40, and the stud bolts 1 pass through the battery module end plate 40 and then are connected to the frame rail 30.
Further, as shown in fig. 4 to 5, a module press beam 50 is provided on the battery module end plate 40, and the sealing flange 13 is in contact with the upper surface of the module press beam 50, with the lower ends of the stud bolts 1 passing through the module press beam 50.
Specifically, the module pressing plate beam 50 is provided with a groove and a through hole, the sealing flange 13 is embedded into the groove, the lower end of the stud bolt 1 passes through the through hole and then passes through the battery module end plate 40 to be connected with the lower nut 5 in the frame cross beam 30.
Alternatively, when the module press plate beam 50 is not provided, the stud bolts 1 may be directly coupled with the lower nuts 5 in the frame cross member 30 after passing through the battery module end plate 40.
Further, as shown in fig. 6 and 10, the battery module end plate 40 is provided with a bolt through hole 401, the frame rail 30 is provided with a blind hole 301, and the bolt through hole 401 is aligned with the central axis of the blind hole 301.
The lower nut 5 is fixed in the blind hole 301, and the lower end of the stud bolt 1 passes through the bolt through hole 401 and is screwed with the lower nut 5.
Alternatively, the battery pack upper cover 10 is made of plastic.
Further, as shown in fig. 2, the battery pack upper fixing bolt 4 includes a bolt head 41 and a bolt rod 42, the bolt head 41 is fixedly connected with the vehicle body cross beam 60, the bolt rod 42 is inserted into the upper bolt head 11 to be connected with the upper internal thread 112, the top surface of the upper nut 3 is attached to the vehicle body cross beam 60, and the battery pack is integrally locked on the vehicle body cross beam 60.
Preferably, the fastening torque applied to the fixing screw 4 of the battery pack is smaller than that of the stud bolt 1.
In this embodiment, the connection with the stud 1 is achieved through the fixing bolt 4 on the battery pack, the connection and sealing with the upper cover 10 of the battery pack are achieved through the stud 1 and the upper nut 3, the connection with the frame beam 30 is achieved through the lower bolt head 12 of the stud 1, and the overall rigidity of the connection between the battery pack and the vehicle body is increased, meanwhile, the middle mount 70 of the battery pack does not penetrate through the whole battery pack structure, so that the tightness is better, the structure is more compact, the weight is reduced, and the cost is low.
What has been described above is merely illustrative of the principles and preferred embodiments of the present invention. It should be noted that several other variants are possible to those skilled in the art on the basis of the principle of the invention and should also be considered as the scope of protection of the present invention.

Claims (10)

1. The middle part of the battery pack is mounted, and is characterized by comprising a stud, a sealing ring, an upper nut, an upper fixing bolt of the battery pack and a lower nut, wherein the upper fixing bolt of the battery pack is used for penetrating through a vehicle body beam and then connecting with the stud, and the lower nut is arranged in a frame beam of the battery pack;
the double-headed bolt comprises an upper bolt head, a lower bolt head and a sealing flange, wherein an upper external thread is arranged on the outer surface of the upper bolt head, an upper internal thread is arranged on the inner surface of the upper bolt head, the upper external thread is used for being matched with the upper nut, the upper internal thread is used for being matched with the upper fixing bolt of the battery pack, a lower external thread is arranged on the outer surface of the lower bolt head, the lower external thread is used for being matched with the lower nut, and the sealing flange is used for being matched with the sealing ring, and the sealing flange is used for compressing an upper cover of the battery pack between the upper nut.
2. The battery pack mid-mount of claim 1, wherein said sealing flange is positioned below said upper bolt head, a sealing groove is formed in an upper surface of said sealing flange, and said sealing ring is mounted in said sealing groove.
3. The mid-pack mount of claim 1, further comprising an upper lid nest disposed between said sealing flange and said upper nut for compressing a battery pack upper lid between said upper lid nest and said upper nut.
4. The mid-pack mount of claim 1, wherein the lower nut is a blind rivet nut secured in the frame rail.
5. The utility model provides a battery package, includes battery package upper cover, battery package lower casing and frame crossbeam, the frame crossbeam sets up the top of casing under the battery package, battery package upper cover with casing lock under the battery package and sealed continuous, its characterized in that still includes the battery package middle part mount of any one of claims 1-4, the upper nut with the last external screw thread cooperation of stud, battery package upper cover compresses tightly to sealing flange upper surface, and with upper cover nested compress tightly sealing flange is last embedded sealing ring.
6. The battery pack according to claim 5, wherein the frame cross member is provided with a battery module end plate, and the stud bolts pass through the battery module end plate and are connected with the frame cross member.
7. The battery pack according to claim 6, wherein the battery module end plate is provided with a module press plate beam, the sealing flange is in contact with an upper surface of the module press plate beam, and the lower end of the stud bolt passes through the module press plate beam.
8. The battery pack of claim 6, wherein the battery module end plate is provided with a bolt through hole, the frame beam is provided with a blind hole, and the bolt through hole is aligned with the central axis of the blind hole.
9. The battery pack according to claim 5, wherein the battery pack upper fixing bolt comprises a bolt head and a bolt rod, the bolt head is fixedly connected with the vehicle body cross beam, the bolt rod is inserted into the upper bolt head and is connected with the upper internal thread, the top surface of the upper nut is attached to the vehicle body cross beam, and the battery pack is integrally locked on the vehicle body cross beam.
10. The battery pack of claim 5, wherein the fastening torque of the fixing screw on the battery pack is smaller than the fastening torque of the stud bolt.
CN202310568132.3A 2023-05-18 2023-05-18 Battery pack middle part mount and battery pack Pending CN116620005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310568132.3A CN116620005A (en) 2023-05-18 2023-05-18 Battery pack middle part mount and battery pack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310568132.3A CN116620005A (en) 2023-05-18 2023-05-18 Battery pack middle part mount and battery pack

Publications (1)

Publication Number Publication Date
CN116620005A true CN116620005A (en) 2023-08-22

Family

ID=87591336

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310568132.3A Pending CN116620005A (en) 2023-05-18 2023-05-18 Battery pack middle part mount and battery pack

Country Status (1)

Country Link
CN (1) CN116620005A (en)

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