CN115207543A - Battery module mounting case for vehicle - Google Patents

Battery module mounting case for vehicle Download PDF

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Publication number
CN115207543A
CN115207543A CN202210328252.1A CN202210328252A CN115207543A CN 115207543 A CN115207543 A CN 115207543A CN 202210328252 A CN202210328252 A CN 202210328252A CN 115207543 A CN115207543 A CN 115207543A
Authority
CN
China
Prior art keywords
panel body
surface panel
battery module
front surface
vehicle
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
CN202210328252.1A
Other languages
Chinese (zh)
Inventor
五之治巧
池上彻弥
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.)
Aisin Keikinzoku Co Ltd
Original Assignee
Aisin Keikinzoku Co Ltd
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 Aisin Keikinzoku Co Ltd filed Critical Aisin Keikinzoku Co Ltd
Publication of CN115207543A publication Critical patent/CN115207543A/en
Pending legal-status Critical Current

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    • 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
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • 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
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
    • 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
    • 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
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • 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
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Battery Mounting, Suspending (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

The purpose of the present invention is to provide a vehicle battery module mounting case that, when a plurality of battery modules are mounted in multiple layers in a vehicle, has a high degree of freedom in supporting and disposing the battery modules, and has an excellent effect of protecting against an external impact load. A case for mounting battery modules in multiple layers on a vehicle, comprising a front surface panel body and a rear surface panel body, wherein the case comprises a middle support member and an upper surface plate body, the middle support member and the upper surface plate body being sandwiched between the front surface panel body and the rear surface panel body and being connected to the front surface panel body and the rear surface panel body, respectively, and the upper surface plate body being disposed on an upper end side, the middle support member and the upper surface plate body having a hollow cross-sectional shape portion at least partially extending over the front surface panel body and the rear surface panel body, the middle support member supporting a second layer and a battery module above the second layer, and the upper surface plate body being positioned above the battery module on the uppermost layer side.

Description

Battery module mounting case for vehicle
Technical Field
The present invention relates to a case for mounting battery modules on a vehicle, and more particularly to a case for mounting a plurality of battery modules in two or more layers.
Background
In the field of hybrid vehicles and electric vehicles in which engine drive and motor drive are combined, a plurality of battery modules including so-called secondary batteries such as lithium ion batteries are mounted.
In the present specification, the battery module is expressed as a battery module by collectively referring to various secondary batteries used for a drive source, although various expressions such as a battery pack and a battery pack are used for the battery module.
In order to efficiently mount a plurality of battery modules on a vehicle, it is necessary to effectively utilize the space of the vehicle, and the battery modules may be mounted in multiple stages.
In this way, if a plurality of battery modules are mounted in two, three, or more layers, the first layer battery module located at the lowermost position can be supported by the chassis and the mounting surface of the vehicle, and therefore is relatively stable, but it is relatively more difficult than the first layer to protect the battery modules located at the second or more layers from a load applied from the outside.
The present applicant has previously proposed a frame structure for mounting a multi-layer battery module, and obtained japanese patent (patent document 1).
The frame structure disclosed in patent document 1 is excellent as a structure for fastening and supporting a battery module so as to be disposed between a pair of left and right support frames.
In contrast, the present invention further improves the degree of freedom of the support structure at the time of fastening and supporting the battery module.
Documents of the prior art
Patent document
Patent document 1: japanese patent No. 6342364
Disclosure of Invention
Technical problem to be solved by the invention
The invention aims to provide a vehicle battery module mounting case, which improves the supporting or arranging freedom of battery modules and has excellent protection effect on impact load from the outside when a plurality of battery modules are mounted on a vehicle in a multi-layer manner.
A vehicle battery module mounting case according to the present invention (hereinafter, referred to as a case as needed) is a case for mounting a vehicle battery module in multiple layers, and includes a front surface panel body and a rear surface panel body, and includes a support body interposed between the front surface panel body and the rear surface panel body and connected to the front surface panel body and the rear surface panel body, respectively, and an upper surface panel body disposed on an upper end side, wherein the intermediate support body and the upper surface panel body have a hollow cross-sectional shape portion at least partially extending over the front surface panel body and the rear surface panel body, the intermediate support body supports a second layer and a battery module on a layer side higher than the second layer, and the upper surface panel body is positioned above the battery module on the uppermost layer.
Here, for convenience of explanation, expressions of the front surface panel body and the rear surface panel body indicate relative positional relationships, a panel body disposed relatively on the front side is expressed as a front surface panel body, and a panel body disposed more on the rear side than the front surface panel body is expressed as a rear surface panel body.
Therefore, the place for mounting the housing according to the present invention on the vehicle is not limited.
For example, in the case of protecting the battery module mainly against an impact load in the front-rear direction of the vehicle, the front panel body is disposed on the front side of the vehicle, and the rear panel body is disposed on the rear side.
For example, in order to protect the battery module mainly against an impact load from a side surface in the traveling direction of the vehicle, the front panel body may be disposed on the side of the vehicle that receives a side impact in the width direction of the vehicle, and the rear panel body may be disposed on the rear side thereof.
In the present invention, in the case of a vehicle-mounted case, the battery module disposed on the lowermost layer side is expressed as a battery module of the first layer, and the member for supporting the battery modules disposed on the second layer, the third layer, or more than these in this order on the first layer is expressed as an intermediate layer support.
In this way, in the case where the battery modules are divided into a multi-layer configuration, the panel body configured to cover the battery module of the uppermost layer is expressed as an upper panel body.
When the battery modules are stored in the case in multiple stages and fixed to the vehicle side, the lower end portion side of the case is fixed to the vehicle side, whereas the battery modules in two or more stages, i.e., the upper stage Fang Cedi and the third stage or more, are in a state of floating from the mounting portion to the vehicle, and therefore, are likely to receive an impact load from the outside.
Therefore, the present invention is characterized in that the intermediate support and the upper surface plate body are provided with the hollow cross-sectional shape portion extending from the front surface panel body to the rear surface panel body, whereby the rigidity in the front-rear direction is improved and the energy absorption amount by deformation is improved.
The middle support may also combine multiple framing members or combine sheet material and framing members.
The upper plate member may have a hollow cross-sectional shape as a whole, but a hollow portion may be formed in a part of the plate member, or a plurality of frame members may be combined.
In the present invention, it is preferable that one or both of the front surface panel body and the rear surface panel body are formed as one panel body integrally from a lower end portion to an upper end portion.
In this way, if the front surface panel body or the rear surface panel body is formed as one integrated panel body, the impact load applied to the panel body is received by the entire panel body, and the impact propagates to the middle support body and the upper surface panel body, so that the impact load can be absorbed by the entire housing.
Here, the one integrated panel body may be integrally molded by one member, or a plurality of members may be integrated by welding or the like.
Further preferably, one or both of the front surface panel body and the rear surface panel body have a hollow cross-sectional shape portion.
In the case according to the present invention, since the impact load applied to the front surface panel body or the rear surface panel body is transmitted to the entire case through the intermediate layer support body and the upper surface panel body, at least one end portion of the intermediate layer support body may be fitted and connected to the front surface panel body or the rear surface panel body, or at least a part of the intermediate layer support body may be integrated with the front surface panel body or the rear surface panel body.
Effects of the invention
In the battery module mounting case for a vehicle according to the present invention, the battery module having the second or more layers is configured such that the middle support body and the upper surface plate body having the hollow cross-sectional shape portion are sandwiched between the front surface panel body and the rear surface panel body on both sides, so that the impact load received from one of the front surface panel body and the rear surface panel body is received by the middle support body and the upper surface plate body and received by the entire case, and therefore, the battery module is protected effectively.
Further, when the middle layer support is formed by combining a plurality of frame members, plate members, and the like, the degree of freedom in fixing the battery module is improved.
Drawings
Fig. 1 schematically shows a configuration example of an embodiment 1 of a vehicle battery module mounting case (housing) according to the present invention.
Fig. 2 shows a side view of example 1.
Fig. 3 schematically shows an embodiment 2 of the case according to the present invention.
Fig. 4 shows a side view of example 2.
Fig. 5 schematically shows embodiment 3 of the case according to the present invention.
Fig. 6 shows a side view of embodiment 3.
Fig. 7 shows an embodiment 4 of the case according to the present invention.
Fig. 8 is a perspective view of the upper plate body of example 4 as viewed from the lower side.
Detailed Description
Hereinafter, a configuration example of a vehicle battery module mounting case according to the present invention will be described with reference to the drawings, but the present invention is not limited thereto.
Fig. 1 shows a configuration example of embodiment 1, and fig. 2 shows a side view thereof.
The housing is composed of an intermediate layer support body 14 and an upper surface plate body 13 which are interposed between and connected to the front surface panel body 11 and the rear surface panel body 12.
As shown in fig. 2, front surface panel body 11 has a hollow cross-sectional shape in which upper side 11c and lower side 11g are connected at both sides by surface member 11a and back surface member 11b, and has a plurality of hollow portions 111 in which the insides are connected by a plurality of ribs 11d, 11e, and 11 f.
In this way, the front surface panel body 11 is a single panel body integrally formed from the upper end portion to the lower end portion of the casing.
In embodiment 1, the rear surface panel body 12 also has the same configuration as the front surface panel body 11.
Rear surface panel 12 is a panel in which both sides of upper side 12c and lower side 12g are connected by surface member 12a and back member 12b, and which has a hollow cross-sectional shape having ribs 12d, 12e, 12f inside, and which is formed integrally.
In embodiment 1, a floor member 15 is attached to the lower end portion of the housing, but in the case where the housing is directly fixed to the vehicle side, the floor member 15 can be omitted.
In embodiment 1, the top panel body 13 is formed by a plurality of frame members 13a, 13b, and 13c, and the plurality of frame members 13a, 13b, and 13c are sandwiched between the inner surface of the front panel body 11 and the inner surface of the rear panel body 12 so that the end surfaces of the hollow cross sections 113c abut against each other.
The middle layer support 14 is used to fix the battery modules of the second layer, as shown by the broken lines in fig. 2, in the battery modules 1 mounted on the first layer and the battery modules 2 mounted on the second layer.
In example 1, the battery module is mounted in two layers, but the intermediate layer support may be used when the battery module is mounted in multiple layers, such as a third layer and a fourth layer.
In embodiment 1, as in the case of the upper surface plate 13, the middle layer support member 14 is coupled so as to sandwich the hollow end face of the frame body having a hollow cross-sectional shape with the hollow portion 14a between the front surface plate body 11 and the rear surface plate body 12.
Fig. 3 is a perspective view of a case according to embodiment 2, and fig. 4 is a side view thereof.
The description will be mainly focused on a configuration different from that of embodiment 1, and the rest is the same as that of embodiment 1.
In embodiment 2, when the middle support 24 is sandwiched and connected between the front surface panel body 21 and the rear surface panel body 22, the upper rib 21a and the lower rib 21b are provided so as to protrude from the inner surface of the front surface panel body 21, and the upper and lower portions of the middle support 24 are fitted by the upper and lower ribs.
In example 2, the upper ribs 22a and the lower ribs 22b are provided so as to protrude from the inner surface of the rear surface panel body 22, and the end portions of the intermediate layer support 24 are fitted and connected between the upper and lower ribs, but only one of the front surface panel body 21 and the rear surface panel body 22 may be configured to be fitted and connected.
In example 2, the intermediate support 24 has a hollow cross-sectional shape 124 disposed in a direction along the space between the front surface panel body 21 and the rear surface panel body 22.
In the present embodiment, the vertical rib 24a is provided in the middle of the double-follow cross-sectional shape.
In example 2, the upper surface plate body 23 is also configured to have the same hollow cross-sectional shape as the intermediate support body.
Fig. 5 and 6 show embodiment 3 of the case according to the present invention.
In embodiment 3, the middle layer support 34 is formed integrally with one or both of the front surface panel body 31 and the rear surface panel body 32.
The upper plate body 33 has the same structure as that of embodiment 1.
In examples 1 to 3, the respective connection portions of the front surface panel body, the rear surface panel body, the intermediate layer support body, and the upper surface panel body can be configured by welding, bolting, or the like.
Fig. 7 and 8 show embodiment 4, which is a specific design example according to the mounting structure of a vehicle to be mounted.
The front panel 41 is formed as one panel by welding and joining the two upper panel members 141 on the upper side to the lower panel member 241 on the lower side.
The upper panel member 141 and the lower panel member 241 have hollow cross-sectional shapes.
The rear surface panel body 42 is also formed as an integral one-piece panel body by welding the upper panel member 142 and the lower panel member 242.
In the present embodiment, ribs 42a are provided on the inner surface of the rear surface panel body 42, similar ribs are provided on the inner surface of the front surface panel body 41, and the ribs are fitted and connected to both ends of the intermediate support body 44.
The middle support 44 shown in example 4 is an example in which the frame body 44a having a hollow cross-sectional shape is divided, the center frame member of the plate material 44c is connected to the frame having the hollow portion 44b, and the support member 44d is made of a plate material.
The battery module 2 of the second layer is fixed by the fastening pins 144a and 144d provided in the middle layer support.
As shown in fig. 8, the upper panel body 43 of example 4 is an example in which a bent member 43b formed by press-molding a plate material is connected to a panel member 43a formed by using the plate material, and a hollow cross-sectional portion is formed between the two members.
The front surface of the top panel body is bent downward, whereby the top panel body is connected by the connecting pin 41b at the upper end of the front panel body 41.
Further, an example is given in which a flange portion 41a formed by bending the lower end portion of the front surface panel body 41 outward is provided and the front surface panel body is fixed to the vehicle side using the flange portion.
Description of the reference numerals
11: a front surface panel body; 12: a rear surface panel body; 13: an upper panel body; 14: a middle layer support; 15: a lower end piece.

Claims (5)

1. A battery module mounting case for a vehicle, for mounting a battery module in a vehicle in multiple layers,
the vehicle battery module mounting case includes a front surface panel body and a rear surface panel body, and includes a middle support body and an upper surface panel body, the middle support body being sandwiched between the front surface panel body and the rear surface panel body and being connected to the front surface panel body and the rear surface panel body, respectively, and the upper surface panel body being disposed on an upper end side,
the middle layer support body and the upper panel body have: a hollow cross-sectional shape portion at least partially spanning the front surface panel body and the rear surface panel body,
the middle layer support member supports the second layer and the battery module on the upper layer side of the second layer, and the upper surface plate member is positioned above the battery module on the uppermost layer.
2. The vehicle battery module-mounting case according to claim 1,
one or both of the front surface panel body and the rear surface panel body are integrally formed from a lower end portion to an upper end portion.
3. The vehicle battery module-mounting case according to claim 2,
one or both of the front surface panel body and the rear surface panel body have a hollow cross-sectional shape portion.
4. The vehicle battery module-mounting case according to claim 3,
at least one end of the intermediate support body is fitted and connected to the front surface panel body or the rear surface panel body.
5. The vehicle battery module-mounting case according to claim 1 or 2,
at least a part of the intermediate support is integrated with the front surface panel body or the rear surface panel body.
CN202210328252.1A 2021-04-05 2022-03-30 Battery module mounting case for vehicle Pending CN115207543A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021063858A JP2022159583A (en) 2021-04-05 2021-04-05 Vehicle battery module mounting case body
JP2021-063858 2021-04-05

Publications (1)

Publication Number Publication Date
CN115207543A true CN115207543A (en) 2022-10-18

Family

ID=83575067

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210328252.1A Pending CN115207543A (en) 2021-04-05 2022-03-30 Battery module mounting case for vehicle

Country Status (2)

Country Link
JP (1) JP2022159583A (en)
CN (1) CN115207543A (en)

Also Published As

Publication number Publication date
JP2022159583A (en) 2022-10-18

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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20221018

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