CN117059988A - Battery box with voltage increasing and decreasing function and application thereof - Google Patents

Battery box with voltage increasing and decreasing function and application thereof Download PDF

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Publication number
CN117059988A
CN117059988A CN202311045229.2A CN202311045229A CN117059988A CN 117059988 A CN117059988 A CN 117059988A CN 202311045229 A CN202311045229 A CN 202311045229A CN 117059988 A CN117059988 A CN 117059988A
Authority
CN
China
Prior art keywords
panel
battery
side plate
battery box
bottom plate
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
CN202311045229.2A
Other languages
Chinese (zh)
Inventor
蔡金萍
李如海
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.)
Shenzhen Center Power Tech Co Ltd
Original Assignee
Shenzhen Center Power Tech 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 Shenzhen Center Power Tech Co Ltd filed Critical Shenzhen Center Power Tech Co Ltd
Priority to CN202311045229.2A priority Critical patent/CN117059988A/en
Publication of CN117059988A publication Critical patent/CN117059988A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring 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
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • 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
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
    • 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
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • 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
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • 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
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular 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
    • H01M50/244—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
    • H01M50/251—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
    • 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
    • H01M50/284—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
    • 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
    • H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/519—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising printed circuit boards [PCB]
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00304—Overcurrent protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00308—Overvoltage protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00309—Overheat or overtemperature protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0034—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using reverse polarity correcting or protecting circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The application relates to a battery box with a voltage increasing and decreasing function and application thereof, wherein the battery box comprises a box body and a cover plate arranged at the top end of the box body; the box body comprises a bottom plate, a first panel, a second panel, a first side plate and a second side plate; the first panel and the second panel are respectively arranged at two ends of the bottom plate; the first side plate and the second side plate are respectively arranged at two sides of the bottom plate; the bottom plate is arranged opposite to the cover plate, and the cover plate is respectively connected with the first panel, the second panel, the first side plate and the second side plate; the first panel is provided with a power output port, a communication port and a BMS board for connecting the battery cell module; the BMS board respectively with the power output port communication port is connected, just be provided with step-up and step-down control module on the BMS board. The application can realize the bidirectional regulation of boosting or reducing voltage, has good heat dissipation and wide application prospect.

Description

Battery box with voltage increasing and decreasing function and application thereof
Technical Field
The application belongs to the technical field of batteries, and particularly relates to a battery box with a voltage increasing and decreasing function and application thereof.
Background
With the deep development of new energy industries such as energy storage, photovoltaics, wind energy and the like, a plurality of new energy sources are mutually fused to form a complementary energy station. Complementary energy stations generally comprise wind power energy storage power stations, photoelectric energy storage power stations, wind and light energy storage power stations and the like.
The energy storage battery generates a large amount of heat due to large charge and discharge flow, and the generated heat is uneven, so that the performance of the battery is easily affected if the heat cannot be timely dissipated. Moreover, with the rapid development of the energy storage industry, the energy storage system needs to be used in different scenes (such as a power generation side, a power transmission side or a user side), and the voltage requirements of different use scenes on the energy storage system are different, so that the energy storage system needs to be configured with different voltage levels according to the different use scenes.
Disclosure of Invention
The application aims to provide a battery box with a voltage increasing and decreasing function and application thereof, so as to solve the technical problem that the voltage is reduced after the existing battery is discharged, and the voltage power supply is difficult to meet the load requirement.
In order to achieve the above objective, in one aspect, an embodiment of the present application provides a battery box with a voltage increasing and decreasing function, including a box body and a cover plate disposed at the top end of the box body; the box body is connected with the cover plate in a sealing way;
the box body comprises a bottom plate, a first panel, a second panel, a first side plate and a second side plate; the first panel and the second panel are respectively arranged at two ends of the bottom plate; the first side plate and the second side plate are respectively arranged at two sides of the bottom plate; the bottom plate is arranged opposite to the cover plate, and the cover plate is respectively connected with the first panel, the second panel, the first side plate and the second side plate;
the first panel is provided with a power output port, a communication port and a BMS board for connecting the battery cell module; the BMS board respectively with the power output port communication port is connected, just be provided with step-up and step-down control module on the BMS board.
As a preferred embodiment, the BMS board is further provided with a monitoring module for monitoring voltage, current, temperature and SOC information of the battery cell module, and the monitoring module is connected with the battery cell module. Through the monitoring module, parameters such as temperature, voltage, current of the battery cell module can be measured, the state of the battery pack can be monitored in real time, and the battery pack has the alarming and protecting functions of over-temperature, under-voltage, over-current, short circuit, reverse connection and the like, and ensures the use safety of the energy storage device.
As a preferable embodiment, the first panel is provided with a status indicator lamp for displaying the electric quantity and the charge and discharge status of the battery cell module; the status indicator lamp is connected with the monitoring module. The status indicator lamp may represent the battery module SOC, the charge and discharge status, and the alarm status. When the battery system has abnormal conditions of voltage, current, temperature and other analog quantities exceeding the safety protection limit, the battery system cuts off output, and meanwhile the monitoring module reports the abnormal conditions and displays a red light warning on the status indicator lamp.
As a preferred embodiment, the BMS board is communicatively connected to an external device. Thus, the remote control function of the battery box can be realized, so that the commands of charging, discharging and the like are received, and a stable discharging voltage value can be set remotely.
As a preferred embodiment, the bottom plate is provided with at least one clamping rail group; the clamping rail group comprises a plurality of clamping rails used for fixing the battery cell module, and the clamping rails are arranged on the bottom plate in parallel.
As a preferable implementation mode, when a plurality of clamping rail groups are arranged on the bottom plate, two adjacent clamping rail groups are arranged in parallel.
As a preferred embodiment, the first panel is further provided with a power output terminal and a signal output terminal connected to the cell module, respectively.
As a preferred embodiment, the side surface of the first panel, which is far away from the battery cell module, is provided with a fishbone heat dissipation structure. Through setting up fishbone heat radiation structure, promoted energy memory's radiating efficiency for first panel possesses good heat conductivility, does not need to increase radiator fan, can satisfy normal charge/discharge heat dissipation demand, can guarantee outward appearance coordination and outward appearance novel again.
As a preferred embodiment, the fishbone heat dissipating structure comprises a plurality of parallel fishbones and a plurality of oblique fishbones; a first concave is arranged between the adjacent parallel fishbones, and a second concave is arranged between the adjacent oblique fishbones. Through setting up first sunken and second sunken, can effectively increase the surface area of first panel to can play better heat conductivility.
In a preferred embodiment, the angle formed by the parallel fishbone and the oblique fishbone is an acute angle.
As a preferred embodiment, a buzzer and a power switch are further disposed on the first panel. The buzzer sounds when the battery is powered on or powered off and in an alarm state to remind the state of the battery module. The power switch control module is started and shut down and is restored to be initialized.
As a preferred embodiment, the end of the first side plate near the first panel and the end of the second side plate near the first panel are both provided with handles.
On the other hand, the application also provides application of the battery box with the voltage increasing and decreasing function, and the battery box with the voltage increasing and decreasing function can be applied to a communication base station, a core machine room, a data machine room and the like.
The technical scheme provided by the application has the following beneficial effects:
(1) According to the structure, the BMS board is arranged on the first panel, and the boost and buck control module and the monitoring module are arranged on the BMS board, so that bidirectional regulation of boost or buck can be realized, start and stop of charge and discharge can be controlled, BUS output voltage is converted, the characteristic that the battery (battery cell module) output voltage drops along with capacity reduction is changed, and the discharge voltage of the battery (battery cell module) is constant. By utilizing the characteristic of constant discharge voltage, the battery (the electric core module) is controlled to output different stable voltage values in different time periods, so that the charging and discharging strategies of the battery (the electric core module) in different time periods are realized, and the technical problems that the voltage drops after the discharge of the traditional battery and the stable voltage power supply is difficult to meet the load requirement can be solved.
(2) In addition, the fishbone radiating structure is arranged, so that the radiating efficiency of the energy storage device is improved, the normal charge/discharge radiating requirement can be met without adding a radiating fan, and the coordination and novel appearance of the energy storage device can be ensured.
(3) The application has the advantages of simple structure, convenient installation, better stability, economy and practicability.
Drawings
Fig. 1 is a schematic structural diagram of a battery box with a step-up and step-down function according to an embodiment of the present application;
FIG. 2 is a schematic view of a part of an exploded structure of the battery box with the step-up/step-down function of FIG. 1;
fig. 3 is a schematic view of the internal structure of the battery box with the step-up/step-down function of fig. 1.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that, if directional indications (such as up, down, left, right, front, back, top, bottom … …) are included in the embodiments of the present application, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.
On the one hand, as shown in fig. 1 to 3, an embodiment of the present application provides a battery box with a voltage increasing/decreasing function, which includes a box body 10 and a cover plate 20 disposed at the top end of the box body 10; the box body 10 is in sealing connection with the cover plate 20;
the box 10 comprises a bottom plate 11, a first panel 12, a second panel 13, a first side plate 14 and a second side plate 15; the first panel 12 and the second panel 13 are respectively disposed at two ends of the bottom plate 11; the first side plate 14 and the second side plate 15 are respectively disposed on two sides of the bottom plate 11; the bottom plate 11 is disposed opposite to the cover plate 20, and the cover plate 20 is connected to the first panel 12, the second panel 13, the first side plate 14, and the second side plate 15, respectively;
the first panel 12 is provided with a power output port 121, a communication port 122, and a BMS board 123 for connecting the cell module 30; the BMS board 123 is respectively connected to the power output port 121 and the communication port 122, and a buck-boost control module (not labeled in the figure) is disposed on the BMS board 123.
In the embodiment of the present application, the bottom plate 11 is integrally formed with the second panel. Therefore, the tightness of the box body can be better ensured, and the box body is convenient to install and detach.
As a preferred embodiment, a monitoring module (not shown) for monitoring the voltage, current, temperature and SOC information of the cell module 30 is further provided on the BMS board 123, and the monitoring module is connected to the cell module 30. Through the monitoring module, parameters such as temperature, voltage, current and the like of the battery cell module 30 can be measured, the state of the battery pack can be monitored in real time, and the battery pack has the alarming and protecting functions such as over-temperature, under-voltage, over-current, short circuit, reverse connection and the like, and ensures the use safety of the energy storage device.
As a preferred embodiment, the first panel 12 is provided with a status indicator lamp 124 for displaying the electric quantity and the charge and discharge status of the cell module 30; the status indicator light 124 is connected to the monitoring module. The status indicator lamp may represent the battery module SOC, the charge and discharge status, and the alarm status. When the battery system has abnormal conditions of voltage, current, temperature and other analog quantities exceeding the safety protection limit, the battery system cuts off output, and meanwhile the monitoring module reports the abnormal conditions and displays a red light warning on the status indicator lamp.
As a preferred embodiment, the BMS board 123 is communicatively connected to an external device (not shown). Thus, the remote control function of the battery box can be realized, so that the commands of charging, discharging and the like are received, and a stable discharging voltage value can be set remotely.
As a preferred embodiment, at least one clamping rail set 111 is arranged on the bottom plate 11; the clamping rail set 111 includes a plurality of clamping rails a for fixing the cell module 30, and the plurality of clamping rails a are disposed in parallel on the bottom plate 11.
As a preferred embodiment, when a plurality of clamping rail groups 111 are disposed on the bottom plate 11, two adjacent clamping rail groups 111 are disposed in parallel.
As a preferred embodiment, the first panel 12 is further provided with a power output terminal (not shown) and a signal output terminal (not shown) connected to the cell module 30, respectively.
As a preferred embodiment, the side of the first face plate 12 remote from the cell module 30 is provided with a fishbone heat dissipating structure 40. Through setting up fishbone heat radiation structure 40, promoted energy memory's radiating efficiency for first panel possesses good heat conductivility, does not need to increase radiator fan, can satisfy normal charge/discharge heat dissipation demand, can guarantee outward appearance coordination and outward appearance novel again.
As a preferred embodiment, the fishbone heat dissipating structure 40 includes a plurality of parallel fishbones 41 and a plurality of diagonal fishbones 42; a first recess 411 is disposed between the adjacent parallel fishbones 41, and a second recess 421 is disposed between the adjacent oblique fishbones 42. By providing the first recess 411 and the second recess 421, the surface area of the first panel 12 can be effectively increased, so that better heat conductive performance can be achieved.
As a preferred embodiment, the angle formed by the parallel fishbone 41 and the oblique fishbone 42 is an acute angle.
As a preferred embodiment, a buzzer 125 and a power switch 126 are also disposed on the first panel 12. The buzzer 125 sounds to alert the battery module state when the power is turned on and off and the alarm state. The power switch 126 controls the module to switch on and off and resume initialization.
As a preferred embodiment, the end of the first side plate 14 near the first panel 12 and the end of the second side plate 15 near the first panel 12 are both provided with handles 50.
Besides the special description, the fixing or connecting of each component in the application is generally realized by screws, thereby facilitating the production and the assembly and the disassembly and the repair when the battery has a problem.
In the embodiment of the present application, the BMS board 123 is connected to the power output port 121 and the battery cell module 30, so that the DC-DC voltage can be intelligently converted, thereby controlling the charge and discharge of the battery cell module 30, and outputting PACK state information and receiving instructions through the communication port 122.
The start and stop of charge and discharge can be controlled through the boost and buck control module (the bidirectional regulation of boost or buck can be realized), BUS output voltage is converted, the characteristic that the battery (battery cell module) output voltage drops along with capacity reduction is changed, and the discharge voltage of the battery (battery cell module) is constant. And the battery (the battery cell module) is controlled to output different stable voltage values in different time periods by utilizing the characteristic of constant discharge voltage, so that the charging and discharging strategies of the battery (the battery cell module) in different time periods are realized.
When the BMS board 123 receives the discharge instruction through the communication port 122, the discharge mos tube is conducted so that the power supply loop starts to work; the charging loop is blocked according to the discharging instruction, the battery pack is subjected to discharging control, the DC-DC lifting voltage is higher than the external BUS voltage, and meanwhile, information such as voltage, current, temperature and electric quantity of the battery pack is reported through the communication port. And in the discharging process of the battery box, when the voltage of the battery pack is reduced to a preset value, the MOS tube is controlled to be turned off, so that the power supply loop stops working.
When the BMS board 123 receives the charging command through the communication port 122, the charging mos tube is turned on to start the charging loop, the charging loop is turned on according to the charging command, the battery pack is charged, the DC-DC lifting voltage is lower than the external BUS voltage, and meanwhile, information such as voltage, current, temperature and electric quantity of the battery pack is reported through the communication port. When the BMS board receives the charge and discharge stopping instruction through the communication port, the MOS tube shutoff circuit stops working. The number of cells of the cell stack 30 can be set as desired.
On the other hand, the application also provides application of the battery box with the voltage increasing and decreasing function, and the battery box with the voltage increasing and decreasing function can be applied to a communication base station, a core machine room, a data machine room and the like.
When the battery pack is used, the battery pack is installed on the rack, and the control module communicates through an RS485 protocol.
According to the structure, the BMS board is arranged on the first panel, and the boost and buck control module and the monitoring module are arranged on the BMS board, so that bidirectional regulation of boost or buck can be realized, start and stop of charge and discharge can be controlled, BUS output voltage is converted, the characteristic that the battery (battery cell module) output voltage drops along with capacity reduction is changed, and the discharge voltage of the battery (battery cell module) is constant. By utilizing the characteristic of constant discharge voltage, the battery (the electric core module) is controlled to output different stable voltage values in different time periods, so that the charging and discharging strategies of the battery (the electric core module) in different time periods are realized, and the technical problems that the voltage drops after the discharge of the traditional battery and the stable voltage power supply is difficult to meet the load requirement can be solved.
In addition, the fishbone radiating structure is arranged, so that the radiating efficiency of the energy storage device is improved, the normal charge/discharge radiating requirement can be met without adding a radiating fan, and the coordination and novel appearance of the energy storage device can be ensured.
The application has the advantages of simple structure, high space utilization rate, convenient installation, better stability, economy and practicability and wide application prospect.
The battery box structure of the application not only can save electricity expense for users, but also can be automatically switched to a standby power supply mode when power is cut off, has high system intellectualization, can collect operation data in real time, adaptively adjusts the operation mode according to the operation state, does not need manual intervention, and reduces operation and maintenance cost; the system has high integration level, adopts integrated design, reduces the energy consumption cost of the product, and has obvious economic benefit; the system has high safety, each electrical equipment and system has multiple protections, operation data can be processed and analyzed in real time through the big data cloud platform by information technology and network technology, safe, clean, reliable and cheap electric energy is provided for stable operation of the system, and photovoltaic and wind energy introduction and connection energy storage can be integrated.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the application, and all equivalent structural changes made by the description of the present application and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the application.

Claims (10)

1. The battery box with the voltage increasing and decreasing function is characterized by comprising a box body and a cover plate arranged at the top end of the box body; the box body is connected with the cover plate in a sealing way;
the box body comprises a bottom plate, a first panel, a second panel, a first side plate and a second side plate; the first panel and the second panel are respectively arranged at two ends of the bottom plate; the first side plate and the second side plate are respectively arranged at two sides of the bottom plate; the bottom plate is arranged opposite to the cover plate, and the cover plate is respectively connected with the first panel, the second panel, the first side plate and the second side plate;
the first panel is provided with a power output port, a communication port and a BMS board for connecting the battery cell module; the BMS board respectively with the power output port communication port is connected, just be provided with step-up and step-down control module on the BMS board.
2. The battery box with the voltage increasing and decreasing function according to claim 1, wherein a monitoring module for monitoring voltage, current, temperature and SOC information of the battery cell module is further arranged on the BMS board, and the monitoring module is connected with the battery cell module;
the first panel is provided with a state indicator lamp for displaying the electric quantity and the charge and discharge state of the battery cell module; the status indicator lamp is connected with the monitoring module;
the BMS board is in communication connection with external devices.
3. The battery box with the voltage increasing and decreasing function according to claim 1, wherein at least one clamping rail group is arranged on the bottom plate; the clamping rail group comprises a plurality of clamping rails used for fixing the battery cell module, and the clamping rails are arranged on the bottom plate in parallel.
4. The battery box with the voltage increasing and decreasing function according to claim 3, wherein when a plurality of clamping rail groups are arranged on the bottom plate, two adjacent clamping rail groups are arranged in parallel.
5. The battery box with the voltage increasing and decreasing function according to claim 1, wherein a power output terminal and a signal output terminal which are respectively connected with the battery cell module are further arranged on the first panel;
the side of the first panel, which is far away from the battery cell module, is provided with a fishbone heat dissipation structure.
6. The battery box with the buck-boost function according to claim 5, wherein the fishbone radiating structure comprises a plurality of parallel fishbones and a plurality of oblique fishbones; a first concave is arranged between the adjacent parallel fishbones, and a second concave is arranged between the adjacent oblique fishbones.
7. The battery box with the voltage increasing and decreasing function according to claim 6, wherein an included angle formed by the parallel fishbone and the oblique fishbone is an acute angle.
8. The battery box with the voltage increasing and decreasing function according to claim 1, wherein a buzzer and a power switch are further arranged on the first panel.
9. The battery box with the step-up/step-down function according to claim 1, wherein a handle is provided at both of an end of the first side plate adjacent to the first panel and an end of the second side plate adjacent to the first panel.
10. The use of a battery box with a step-up and step-down function according to any one of claims 1 to 9, wherein the battery box with a step-up and step-down function is applied to a communication base station, a core machine room or a data machine room.
CN202311045229.2A 2023-08-18 2023-08-18 Battery box with voltage increasing and decreasing function and application thereof Pending CN117059988A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311045229.2A CN117059988A (en) 2023-08-18 2023-08-18 Battery box with voltage increasing and decreasing function and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311045229.2A CN117059988A (en) 2023-08-18 2023-08-18 Battery box with voltage increasing and decreasing function and application thereof

Publications (1)

Publication Number Publication Date
CN117059988A true CN117059988A (en) 2023-11-14

Family

ID=88658541

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311045229.2A Pending CN117059988A (en) 2023-08-18 2023-08-18 Battery box with voltage increasing and decreasing function and application thereof

Country Status (1)

Country Link
CN (1) CN117059988A (en)

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