CN111599958A - Lightweight battery pack - Google Patents

Lightweight battery pack Download PDF

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Publication number
CN111599958A
CN111599958A CN202010473189.1A CN202010473189A CN111599958A CN 111599958 A CN111599958 A CN 111599958A CN 202010473189 A CN202010473189 A CN 202010473189A CN 111599958 A CN111599958 A CN 111599958A
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CN
China
Prior art keywords
battery module
plate
battery pack
side plate
air bag
Prior art date
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Granted
Application number
CN202010473189.1A
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Chinese (zh)
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CN111599958B (en
Inventor
肖冬明
李学军
蒋玲莉
周旭华
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Foshan University
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Foshan University
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Priority to CN202010473189.1A priority Critical patent/CN111599958B/en
Publication of CN111599958A publication Critical patent/CN111599958A/en
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Publication of CN111599958B publication Critical patent/CN111599958B/en
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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
    • 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
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H01M10/635—Control systems based on ambient temperature
    • 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
    • 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
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

Abstract

The invention discloses a light-weight battery pack which comprises a base, a battery module, a vibration-damping and temperature-regulating component and a locking component, wherein the base is provided with a cavity which is vertical to the ground and has openings at two ends; the vibration reduction and temperature adjustment assembly comprises a positioning shell, a sealing air bag and a host, wherein the positioning shell is embedded in the second space, the sealing air bag is sleeved in the positioning shell, and the host is communicated with the sealing air bag to adjust the pressure and the temperature of the gas in the sealing air bag; the locking assembly is detachably connected with the base body and used for locking the battery module. Whole battery package is frame construction, and the base bears the most weight of battery module, effective material saving, and the sealed gasbag is adjusted and is absorbed battery module's impact vibration and adjust battery module's temperature.

Description

Lightweight battery pack
Technical Field
The invention relates to the technical field of new energy automobile parts, in particular to a lightweight battery pack.
Background
A pure electric vehicle refers to a vehicle type driven only by electric power, in which the electric power is stored in a battery pack. In view of the current energy density of the battery pack and the endurance requirement of the automobile, the battery pack usually has several hundred kilograms. As the battery pack is added to the electric vehicle, the weight of the whole electric vehicle is increased, and more fine design of the original vehicle body structure is required. At present, the weight of a battery pack system accounts for more than 20% of the whole vehicle, the cost of the battery pack system accounts for 30% -60% of the whole vehicle, and the new energy vehicle needs to be lighter than the traditional vehicle.
The existing battery pack is composed of an upper shell, a lower shell and a sealing gasket, the battery pack is supported on a vehicle body by directly utilizing a bottom plate of the lower shell during installation, so that the requirement on the strength of the bottom plate of the lower shell is high, the upper shell and the lower shell are both of steel structures in actual production, the whole self weight is large, and the energy density of the battery pack is only about 120 Wh/kg. Along with the requirement of customers on the endurance mileage of the new energy automobile, the energy value of the battery pack gradually rises, and the steel battery pack cannot meet the market demand. Meanwhile, the upper shell and the lower shell of the existing battery pack are mostly integrally formed and processed, so that the existing battery pack can only be provided with battery modules with single specification, and a plurality of groups of battery packs with specifications are designed to adapt to different vehicle types, thereby increasing the cost of design, processing and assembly; meanwhile, the cooling system of the conventional battery pack mostly adopts liquid circulation cooling, and the liquid cooling can improve the overall weight of the battery pack. Therefore, a light weight battery pack is needed.
Disclosure of Invention
The invention mainly aims to provide a light battery pack, which solves the problem of overlarge self weight of the conventional battery pack.
In order to achieve the purpose, the light-weight battery pack provided by the invention comprises a base, a battery module, a vibration-damping temperature-regulating component and a locking component, wherein the base comprises a base body, a support framework and a plurality of groups of stand columns, the base body is provided with a cavity which is vertical to the ground and has two open ends, the support framework is horizontally arranged in the cavity and is used for supporting the battery module, the stand columns are vertically connected with one side, deviating from the ground, of the support framework to form a first space for mounting the battery module, and one side, deviating from the first space, of the base is provided with a second space for mounting the vibration-damping temperature-regulating component; the vibration-damping and temperature-regulating assembly comprises a positioning shell, a sealing air bag and a host, wherein the positioning shell is embedded in the second space, one side of the positioning shell, which is close to the battery module, is provided with a plurality of groups of round holes penetrating through the wall thickness of the shell, the sealing air bag is sleeved in the positioning shell, the host is communicated with the sealing air bag to regulate the pressure and the temperature of gas in the sealing air bag, an elastic column extending out of the round holes is formed outside the positioning shell after the sealing air bag is inflated, and the elastic column is abutted against the bottom surface of the battery module; the locking assembly is detachably connected with the base body and used for locking the battery module.
Preferably, the battery module includes at least one unit battery pack.
Preferably, the base body comprises a frame body which is provided with a through hole perpendicular to the ground and used for clamping the battery module, a mounting plate which is fixedly arranged outside the frame body and used for connecting a vehicle body, and a plurality of groups of reinforcing rib plates which are arranged on the outer wall of the frame body and on one side of the mounting plate, which is far away from the ground.
Preferably, the support framework comprises a plurality of groups of first cross beam plates arranged in parallel at intervals and at least one group of second cross beam plates arranged in parallel at intervals along the plate length direction of the first cross beam plates, and the first cross beam plates on two outer sides are parallel to the mounting plate and fixedly arranged on the inner wall of the framework so as to support and clamp the battery module.
Preferably, the upright column comprises a first side plate, a second side plate, a first connecting plate and a second connecting plate; the first side plate and the second side plate are respectively vertically arranged; the second side plate is perpendicular to the plate surface of the first side plate and is fixedly arranged at one end of the first side plate, and the first connecting plate and the second connecting plate are arranged at two ends of an inner right angle formed by the first side plate and the second side plate at intervals in parallel; the first side plate deviates from the surface of the second side plate and is used for abutting against the side wall of the battery module, the second side plate is attached to and detachably connected with the inner hole wall of the frame body, and the first connecting plate is attached to and detachably connected with the first cross beam plate.
Preferably, the first side plate is stuck with a buffer structure layer away from the surface of the second side plate, and the buffer structure layer is a carbon fiber composite film.
Preferably, the host comprises an air inlet and outlet pipe, a compressor, an air conditioner, a vibration sensor, a temperature sensor and a microcomputer, wherein the air inlet and outlet pipe is communicated with the sealed air bag, and the compressor is communicated with the air inlet and outlet pipe and is used for controlling the pressure of the gas in the sealed air bag; the air conditioner is communicated with the air inlet and outlet pipe and is used for controlling the temperature of the gas in the sealed air bag; the vibration sensor is used for collecting vibration signals of the base and transmitting the vibration signals to the microcomputer; the temperature sensor is used for acquiring a temperature signal of the battery module and transmitting the temperature signal to the microcomputer; the microcomputer is used for analyzing the vibration signal and the temperature signal so as to adjust the pressure and the temperature of the gas in the sealed air bag in real time.
Preferably, the locking component comprises a pressing plate and two groups of pull rods arranged at two ends of the pressing plate, the pressing plate is arranged at one end, deviating from the base, of the battery module, the two pull rods vertically penetrate through the surface of the pressing plate and are arranged on two sides of the battery module, one end of each pull rod is vertically positioned at one side, deviating from the battery module, of the pressing plate, and the other end of each pull rod is detachably connected with the base through a nut so as to be used for locking the battery module.
Preferably, the battery pack further comprises a dust cover covering the battery module and the plurality of groups of locking assemblies, and the dust cover is detachably connected with the base through a buckle.
Preferably, the battery pack further comprises a junction box arranged on the outer wall of the seat body.
In the technical scheme of the invention, the battery module is clamped in the first space, the battery module is locked through the locking assembly, the whole battery pack is of a frame structure, most of the weight of the battery module is borne through the base, an upper shell and a lower shell which coat the battery module do not need to be formed, and materials are effectively saved; the temperature of the gas in the sealed air bag is adjusted through the host machine so as to achieve temperature adjustment of the battery module, an elastic column extending out of the round hole is formed outside the positioning shell after the sealed air bag is inflated, and the elastic column is abutted against the bottom surface of the battery module so as to absorb impact and vibration of the battery module; through locking Assembly compresses tightly the battery module is in order to realize vertical location, improves the stationarity of battery package operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of fig. 1 with the dust cover removed.
Fig. 3 is a schematic front view of the structure of fig. 2.
Fig. 4 is a schematic structural view of the base in fig. 1 (with the pillar removed).
Fig. 5 is a schematic structural view of the pillar in fig. 1.
Fig. 6 is a schematic structural view of the vibration damping and temperature regulating assembly of fig. 2.
The reference numbers illustrate:
reference numerals Name (R) Reference numerals Name (R)
1 Base seat 11 Base body
111 Frame body 112 Mounting plate
113 Reinforcing rib plate 12 Supporting framework
121 First beam plate 122 Second beam plate
123 Baffle plate 13 Upright post
131 First side plate 132 Second side plate
133 First connecting plate 134 Second connecting plate
14 Buffer structure layer 2 Battery module
21 First unit battery pack 22 Second unit battery pack
3 Locking assembly 31 Pressing plate
32 Pull rod 33 Nut
4 Vibration-damping temperature-regulating assembly 41 Main unit
42 Positioning shell 420 Round hole
43 Air inlet and outlet pipe 44 Compressor with a compressor housing having a plurality of compressor blades
45 Air conditioner 5 Dust cover
6 Line concentration box 100 The first space
200 Second space 135 Transition plate
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a light battery pack.
With reference to fig. 1 to 6, the light-weight battery pack disclosed in this embodiment includes a base 1, a battery module 2, a vibration-damping and temperature-regulating assembly 4, and a locking assembly 3, where the base 1 includes a base body 11, a support frame 12, and a plurality of sets of columns 13, the base body 1 is formed with a cavity that is perpendicular to the ground and has two open ends, the support frame 12 is horizontally disposed in the base body 1 for supporting the battery module 2, the columns 13 are vertically connected to one side of the support frame 12 that is away from the ground to form a first space 100 for mounting the battery module 2, and one side of the base 11 that is away from the first space 100 is formed with a second space 200 for mounting the vibration-damping and temperature-regulating assembly 4; the vibration-damping and temperature-regulating component 4 comprises a positioning shell 42, a sealed air bag (not shown in the figure) and a host 41, wherein the positioning shell 42 is embedded in the second space 200, one side of the positioning shell 42, which is close to the battery module 2, is provided with a plurality of groups of round holes 420 penetrating through the wall thickness of the shell, the sealed air bag is sleeved in the positioning shell 42, the host 41 is communicated with the sealed air bag to regulate the pressure and the temperature of gas in the sealed air bag, an elastic column (not shown in the figure) extending out of the round holes 420 is formed outside the positioning shell 42 after the sealed air bag is inflated, and the elastic column is abutted against the bottom surface of the battery module 2; the locking assembly 3 is detachably connected with the base body 1 and used for locking the battery module 2.
In the technical scheme of the invention, the battery module 2 is clamped in the first space 100, the battery module 2 is locked through the locking component 3, the whole battery pack is of a frame structure, most of the weight of the battery module 2 is borne through the base 1, an upper shell and a lower shell for coating the battery module 2 are not required, and materials are effectively saved. The temperature of the gas in the sealed air bag is adjusted through the host machine so as to achieve temperature adjustment of the battery module, an elastic column extending out of the round hole is formed outside the positioning shell after the sealed air bag is inflated, and the elastic column is abutted against the bottom surface of the battery module so as to absorb impact and vibration of the battery module; through locking Assembly compresses tightly the battery module is in order to realize vertical location, improves the stationarity of battery package operation. Simultaneously, the impact and the vibration of the battery module 2 are absorbed through the buffer structure layer 14, and the running stability of the battery pack is improved.
Preferably, the battery module 2 includes at least one unit battery pack.
Specifically, the battery module 2 includes one first unit battery pack 21 and two second unit battery packs 22.
Preferably, the seat body 11 includes a frame 111 having a through hole perpendicular to the ground for clamping the battery module 2, an installation plate 112 fixedly disposed outside the frame 111 for connecting the vehicle body, and a plurality of sets of reinforcing ribs 113 disposed on the outer wall of the frame 111 and on the side of the installation plate 112 away from the ground.
Specifically, the through hole is an inner hole with a rectangular cross section, the seat body 11 is formed by welding aluminum alloy materials, and the strength and the rigidity of the seat body 11 are improved through the multiple groups of reinforcing rib plates 113.
Preferably, the supporting framework 12 includes a plurality of groups of first cross beam plates 121 arranged in parallel at intervals and at least one group of second cross beam plates 122 arranged in parallel at intervals along the plate length direction of the first cross beam plates 121, and the two outer first cross beam plates 121 are fixedly arranged on the inner wall of the frame 111 in parallel with the mounting plate 112, so as to support and clamp the battery module 2; a second space 200 for installing the vibration-damping and temperature-regulating assembly 4 is formed on one side of the supporting framework 12, which is far away from the first space 100.
Specifically, there are three sets of the first cross beam plates 121, and there is one set of the second cross beam plates 122 and disposed at the middle sections of the three sets of the first cross beam plates 121; the baffle 123 is vertically arranged on the plate surface of the first cross beam plate 121 in the middle position, and the space on the side, away from the ground, of the frame body 111 is divided into two parts by the baffle 123.
Preferably, the upright 13 comprises a first side plate 131, a second side plate 132, a first connecting plate 133 and a second connecting plate 1344; the first side plate 131 and the second side plate 132 are vertically disposed, respectively; the second side plate 132 is perpendicular to the plate surface of the first side plate 131 and is fixedly arranged at one end of the first side plate 131, and the first connecting plate 133 and the second connecting plate 134 are arranged at two ends of an inner right angle formed by the first side plate 131 and the second side plate 132 at intervals in parallel; the first side plate 131 deviates from the second side plate 132, the plate surface of the first side plate 131 is used for abutting against the side wall of the battery module 2, the second side plate 132 is attached to and detachably connected with the inner hole wall of the frame body 111, and the first connecting plate 131 is attached to and detachably connected with the first beam plate 121.
Specifically, a plurality of first spaces with different sizes can be formed by a plurality of groups of the upright posts 13, so that the function of installing a plurality of battery units with different specifications in one battery pack is realized, and the design, processing and assembly costs of the battery pack are reduced.
Further, the second side plate 132 is detachably connected to the inner hole wall of the frame 111 through a fastener, and the first connecting plate 131 is detachably connected to the first beam plate 12 through a fastener.
Further, two pairs of the pillars 13 are connected as a whole by a transition plate 135.
Preferably, the first side plate 131 is adhered with a buffer structure layer 14 on the surface facing away from the second side plate 132, and the buffer structure layer 14 is a carbon fiber composite film.
Specifically, when the surface of the carbon fiber composite material is impacted, pressure waves are generated, most of the pressure waves are transmitted along the fiber direction, and the acted fibers transmit stress through the interaction between the matrix and the interwoven fibers, so that the fibers are deformed to absorb energy.
Specifically, the impact and rotation of the battery module 2 are absorbed by a plurality of sets of elastic columns abutting against the bottom surface of the battery module 2.
Preferably, the main machine 41 comprises an air inlet and outlet pipe 43, a compressor 44, an air conditioner 45, a vibration sensor, a temperature sensor and a microcomputer, wherein the air inlet and outlet pipe 43 is communicated with the sealed air bag, and the compressor 44 is communicated with the air inlet and outlet pipe 43 for controlling the pressure of the gas in the sealed air bag; the air conditioner 45 is communicated with the air inlet and outlet pipe 43 and is used for controlling the temperature of the gas in the sealed air bag; the vibration sensor is used for collecting vibration signals of the base and transmitting the vibration signals to the microcomputer; the temperature sensor is used for acquiring a temperature signal of the battery module and transmitting the temperature signal to the microcomputer; the microcomputer is used for analyzing the vibration signal and the temperature signal so as to adjust the pressure and the temperature of the gas in the sealed air bag in real time.
Specifically, through microcomputer real-time processing temperature signal makes battery module 2 remains a reasonable temperature throughout at the in-process of operation to improve battery package energy output's stability greatly, and then improve battery package's practical life. Simultaneously through microcomputer real-time processing vibration signal for the butt battery module 2 the elasticity post is in reasonable pressure range, in order to guarantee the elastic modulus and the impact strength of elasticity post absorb by a wide margin the impact of battery module 2.
Further, the air inlet and outlet pipe 43 penetrates through the side wall of the frame 111 to communicate with an external cylinder.
Preferably, locking Assembly 3 include clamp plate 31 and set up in two sets of pull rods 32 at clamp plate 31 both ends, clamp plate 31 set up in battery module 2 deviates from the one end of base 1, two pull rods 32 wear to establish perpendicularly the face of clamp plate 31 and set up in battery module 2's both sides, the vertical location in one end of pull rod 32 clamp plate 31 deviates from one side of battery module 2, the other end of pull rod 32 passes through nut 33 and can dismantle the connection base 1 for the locking battery module 2.
Specifically, the buffer structure layer 14 is disposed on a side of the pressing plate 31 contacting the battery module 2.
Preferably, the battery pack further comprises a dust cover 5 covering the battery module 2 and the plurality of sets of locking assemblies 3, and the dust cover 5 is detachably connected with the base 1 through a buckle (not shown).
Specifically, the dust cover 5 is made of PEEK.
Preferably, the battery pack further comprises a wire collecting box 6 arranged on the outer wall of the seat body 1.
Specifically, the wire collecting box 6 is disposed at one end of the frame 111 close to the air inlet/outlet pipe 43.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A light battery pack is characterized by comprising a base, a battery module, a vibration-damping temperature-regulating component and a locking component, wherein the base comprises a base body, a support framework and a plurality of groups of stand columns, the base body is provided with a cavity which is vertical to the ground and has two open ends, the support framework is horizontally arranged in the cavity and is used for supporting the battery module, the stand columns are vertically connected with one side, away from the ground, of the support framework to form a first space for mounting the battery module, and a second space for mounting the vibration-damping temperature-regulating component is formed on one side, away from the first space, of the base; the vibration-damping and temperature-regulating assembly comprises a positioning shell, a sealing air bag and a host, wherein the positioning shell is embedded in the second space, one side of the positioning shell, which is close to the battery module, is provided with a plurality of groups of round holes penetrating through the wall thickness of the shell, the sealing air bag is sleeved in the positioning shell, the host is communicated with the sealing air bag to regulate the pressure and the temperature of gas in the sealing air bag, an elastic column extending out of the round holes is formed outside the positioning shell after the sealing air bag is inflated, and the elastic column is abutted against the bottom surface of the battery module; the locking assembly is detachably connected with the base body and used for locking the battery module.
2. The light-weight battery pack according to claim 1, wherein the battery module includes at least one unit battery pack.
3. The light-weight battery pack according to claim 1, wherein the base body comprises a frame body provided with a through hole perpendicular to the ground for clamping the battery module, an installation plate fixedly arranged outside the frame body for connecting a vehicle body, and a plurality of groups of reinforcing rib plates arranged on the outer wall of the frame body and on the side of the installation plate away from the ground.
4. The light-weight battery pack according to any one of claims 1 to 3, wherein the support frame includes a plurality of sets of first cross beam plates arranged in parallel at intervals and at least one set of second cross beam plates arranged in parallel at intervals along a plate length direction of the first cross beam plates, and the first cross beam plates on two outer sides are fixedly arranged on the inner wall of the frame body in parallel with the mounting plate so as to support and clamp the battery module.
5. The light-weight battery pack according to claim 4, wherein the pillar includes a first side plate, a second side plate, a first connecting plate, and a second connecting plate; the first side plate and the second side plate are respectively vertically arranged; the second side plate is perpendicular to the plate surface of the first side plate and is fixedly arranged at one end of the first side plate, and the first connecting plate and the second connecting plate are arranged at two ends of an inner right angle formed by the first side plate and the second side plate at intervals in parallel; the first side plate deviates from the surface of the second side plate and is used for abutting against the side wall of the battery module, the second side plate is attached to and detachably connected with the inner hole wall of the frame body, and the first connecting plate is attached to and detachably connected with the first cross beam plate.
6. The light-weight battery pack according to claim 5, wherein a buffer structure layer is adhered to a surface of the first side plate, which faces away from the second side plate, and the buffer structure layer is a carbon fiber composite film.
7. The light-weight battery pack according to claim 1, wherein the host machine comprises an air inlet and outlet pipe, a compressor, an air conditioner, a vibration sensor, a temperature sensor and a microcomputer, wherein the air inlet and outlet pipe is communicated with the sealed air bag, and the compressor is communicated with the air inlet and outlet pipe for controlling the pressure of gas in the sealed air bag; the air conditioner is communicated with the air inlet and outlet pipe and is used for controlling the temperature of the gas in the sealed air bag; the vibration sensor is used for collecting vibration signals of the base and transmitting the vibration signals to the microcomputer; the temperature sensor is used for acquiring a temperature signal of the battery module and transmitting the temperature signal to the microcomputer; the microcomputer is used for analyzing the vibration signal and the temperature signal so as to adjust the pressure and the temperature of the gas in the sealed air bag in real time.
8. The light-weight battery pack according to claim 1, wherein the locking assembly includes a pressing plate and two sets of pull rods disposed at two ends of the pressing plate, the pressing plate is disposed at one end of the battery module facing away from the base, the two pull rods vertically penetrate through the plate surface of the pressing plate and are disposed at two sides of the battery module, one end of each pull rod is vertically positioned at one side of the pressing plate facing away from the battery module, and the other end of each pull rod is detachably connected to the base through a nut for locking the battery module.
9. The light-weight battery pack according to claim 8, further comprising a dust cover covering the battery modules and the plurality of sets of locking assemblies, wherein the dust cover is detachably connected to the base through a buckle.
10. The light-weight battery pack according to claim 1, further comprising a junction box provided on an outer wall of the housing.
CN202010473189.1A 2020-05-29 2020-05-29 Lightweight battery pack Active CN111599958B (en)

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CN202010473189.1A CN111599958B (en) 2020-05-29 2020-05-29 Lightweight battery pack

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