WO2022080760A1 - 배터리 팩 및 이를 포함하는 디바이스 - Google Patents
배터리 팩 및 이를 포함하는 디바이스 Download PDFInfo
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- WO2022080760A1 WO2022080760A1 PCT/KR2021/013818 KR2021013818W WO2022080760A1 WO 2022080760 A1 WO2022080760 A1 WO 2022080760A1 KR 2021013818 W KR2021013818 W KR 2021013818W WO 2022080760 A1 WO2022080760 A1 WO 2022080760A1
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- Prior art keywords
- battery modules
- battery
- wave path
- path guide
- slave
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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
- 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
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- 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
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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
- 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
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
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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
- 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
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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
- 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
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- 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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- 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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Definitions
- the present invention relates to a battery pack and a device including the same, and more particularly, to a battery pack in which wireless transmission performance is secured and a device including the same.
- a rechargeable battery that can be charged and discharged is widely used as a battery that is a power source of a wireless mobile device.
- Such batteries are also in the spotlight as a power source for electric vehicles (EVs), hybrid electric vehicles (HEVs), etc., which are proposed as a way to solve the air pollution of conventional gasoline or diesel vehicles using fossil fuels.
- EVs electric vehicles
- HEVs hybrid electric vehicles
- a battery alternately performs charging and discharging, there is a need to efficiently control charging and discharging of the battery to manage the battery to maintain an appropriate operating state and performance.
- a battery management system for managing the state and performance of the battery is provided in the battery pack.
- BMS manages the battery by measuring the current, voltage, and temperature of the battery and recording it in the memory.
- the battery pack having a multi-module structure can be implemented in various types of pack structures depending on the configuration of circuits and PCBs.
- the communication between the master BMS and the slave BMS uses the wired BMS method connected by wire.
- the wireless BMS method (WBMS, Wireless Battery Management System) has recently been in the spotlight.
- the wireless BMS method eliminates the need for a wire harness used for conventional wired connection, thereby reducing cost and weight, and may also bring about an improvement in fuel efficiency of an electric vehicle equipped with a battery pack due to weight reduction.
- the performance of the antenna is the performance of the antenna, and the performance of the antenna may vary depending on the environment in which the antenna operates.
- the performance of the antenna may vary depending on the environment in which the antenna operates.
- the wireless BMS method it may be essential to design a battery pack structure capable of minimizing deterioration of wireless communication performance.
- An object of the present invention is to provide a battery pack including a pack structure in which wireless transmission performance can be secured, and a device including the same.
- a battery pack according to an embodiment of the present invention for realizing the above object includes: a plurality of first battery modules and a plurality of second battery modules arranged in two rows in a first direction; a battery case accommodating the plurality of first and second battery modules and including a plurality of crossbeams partitioning between the plurality of first battery modules and between the plurality of second battery modules; a plurality of first slave BMSs located on one side of the plurality of first battery modules facing the plurality of second battery modules and arranged in the first direction; a plurality of second slave BMSs located at one side of the plurality of second battery modules facing the plurality of first battery modules and arranged in the first direction; a plurality of first reflected wave absorbers disposed on one side of the plurality of first battery modules facing the plurality of second battery modules; and a plurality of second reflected wave absorbers disposed on one side of the plurality of second battery modules facing the plurality of first battery modules.
- the battery pack may include: a first wave path guide extending from upper portions of the plurality of first battery modules in the first direction; and a second wave path guide extending along the first direction from upper portions of the plurality of second battery modules.
- the plurality of first slave BMSs and the plurality of second battery modules may be respectively arranged between the first wave path guide and the second wave path guide in the first direction.
- the plurality of first reflected wave absorbers is disposed below the first wave path guide and the first slave BMS to be spaced apart from the first wave path guide and the first slave BMS, and the plurality of second reflected wave absorbers includes the A second wave path guide and a lower side of the second slave BMS may be disposed to be spaced apart from the second wave path guide and the second slave BMS.
- the battery pack may further include a master BMS formed to be separated from the plurality of first and second battery modules between the first wave path guide and the second wave path guide.
- the first and second wave path guides extend in the first direction to pass through the plurality of first and second battery modules, and the master BMS is spaced apart from the plurality of first and second battery modules in the first direction. may be placed in a designated location.
- the plurality of first reflected wave absorbers are arranged to correspond to the plurality of first slave BMSs under the plurality of first slave BMSs, and the plurality of second reflected wave absorbers are disposed below the plurality of second slave BMSs. It may be arranged to correspond to a plurality of second slave BMSs.
- the first wave path guide may be formed between the upper cover of the battery pack and the plurality of first battery modules, and the second wave path guide may be formed between the upper cover of the battery pack and the second battery module of the bogood. there is.
- An antenna may be formed in the first and second slave BMSs.
- the battery pack may further include a battery pack upper cover covering an upper surface of the battery case, and at least one hole may be formed in the battery pack upper cover.
- first bus bars arranged to span between two adjacent battery modules among the battery modules of the plurality of first battery modules; and a plurality of second bus bars arranged to span between two adjacent battery modules among the battery modules of the plurality of second battery modules.
- a device includes the battery pack.
- a battery pack and a device including the same provide a battery pack structure equipped with a WBMS having a novel structure, thereby securing wireless communication performance of the battery.
- FIG. 1 is a perspective view illustrating a battery pack according to an embodiment of the present invention.
- FIG. 2 is a top view of the battery pack of FIG. 1 as viewed from above;
- FIG. 3 is a view showing a state in which a hole is formed in the upper cover of the battery pack according to an exemplary embodiment of the portion A of FIG. 1 .
- FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2 , showing a middle part of a battery pack provided with a reflected wave absorber according to an embodiment of the present invention.
- FIG. 5 is a diagram illustrating an interval between slave BMSs according to a portion D of FIG. 2 , according to an embodiment of the present invention.
- FIG. 6 is a view showing the height of the outer wall of the battery case according to an embodiment of the present invention as part C of FIG. 4 .
- FIG. 7 is a view showing the height of a cross beam of a battery case according to an exemplary embodiment of the portion C of FIG. 4 .
- FIGS. 1 to 4 a battery pack equipped with a BMS according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4 .
- FIG. 1 is a perspective view illustrating a battery pack according to an embodiment of the present invention.
- FIG. 2 is a top view of the battery pack of FIG. 1 as viewed from above; 3 is a view showing a state in which a hole is formed in the upper cover of the battery pack according to an exemplary embodiment of the portion A of FIG. 1 .
- 4 is a cross-sectional view taken along line B-B of FIG. 2 , showing a middle part of a battery pack provided with a reflected wave absorber according to an embodiment of the present invention.
- a battery pack according to an embodiment of the present invention includes a plurality of first battery modules 200 and a plurality of second battery modules 300 arranged in two rows in a first direction. accommodating the first and second battery modules 200 and 300 of the and a battery case 100 .
- the plurality of first battery modules 200 and the plurality of second battery modules 300 may be disposed to face each other.
- first wave path guide 400 formed to extend along the first direction from the upper portions of the plurality of first battery modules 200, the upper portions of the plurality of second battery modules 300 are formed to extend along the first direction and a second wave path guide 500 .
- the first direction between the first wave path guide 400 and the second wave path guide 500 located on one side of the plurality of first battery modules 200 facing the plurality of second battery modules 300 .
- the first wave path guide 400 and the second It includes a plurality of second slave BMS (700) arranged in the first direction between the wave path guide (500).
- the battery case 100 accommodates a plurality of first and second battery modules 200 and 300 .
- the plurality of module areas of the battery case 100 may be formed to have sizes corresponding to the sizes of the first and second battery modules 200 and 300 , respectively.
- the plurality of first and second battery modules 200 and 300 may be respectively located in the plurality of module areas.
- the plurality of first battery modules 200 are arranged in a first direction, and the plurality of second battery modules 300 are arranged in the first direction from the side surfaces of the plurality of first battery modules 200 . They may be arranged in accordance with each other to form a two-row battery module arrangement structure. In this case, each battery module constituting the plurality of first battery modules 200 may be disposed to face each battery module constituting the plurality of second battery modules 300 to be spaced apart from each other.
- a cross beam 110 may be formed between each module area to partition between battery modules disposed in each module area.
- the cross beam 110 may protect the plurality of first and second battery modules 200 and 300 from a physical force acting from the outside together with the outer wall 120 forming the outer periphery of the battery case 100 .
- the thermally conductive resin layer may be formed on the bottom surface of the battery case 100 .
- the thermally conductive resin layer may transfer heat generated from the plurality of first and second battery modules 200 and 300 disposed in each of the plurality of module areas to the outside of the battery pack.
- the first slave BMS 600 may be disposed in each of the plurality of first battery modules 200 . More specifically, the first slave BMS 600 may be disposed in portions facing the plurality of second battery modules 300 . The first slave BMS 600 may be disposed in the center of the battery case 100 . That is, the first slave BMS 600 is disposed on one side of the plurality of first battery modules 200 along the first direction between the plurality of first and second battery modules 200 and 300, thereby forming the battery case 100 . can be placed across the middle of the
- the second slave BMS 700 may be disposed in each of the plurality of second battery modules 300 . More specifically, the second slave BMS 700 may be disposed in portions facing the plurality of first battery modules 200 . The second slave BMS 700 may be disposed at the center of the battery case 100 . That is, the second slave BMS 700 is disposed on one side of the plurality of second battery modules 300 along the first direction between the plurality of first and second battery modules 200 and 300, thereby the battery case 100 . can be placed across the middle of the
- the slave BMS is located in the central part of the battery case, that is, as shown in FIG. It may be more advantageous in terms of wireless transmission performance to be located in the space between the battery modules together.
- the battery pack according to the present embodiment includes upper portions of the first wave path guide 400 and the plurality of second battery modules 300 extending in the first direction from upper portions of the plurality of first battery modules 200 . and a second wave path guide 500 extending in the first direction.
- the first slave BMS 600 and the second slave BMS 700 according to the present embodiment may be located in a space formed between the first and second wave path guides 400 and 500 .
- the first wave path guide 400 is formed between the battery pack upper cover 130 and the plurality of first battery modules 200
- the second wave path guide 500 is formed between the battery pack upper cover 130 and the plurality of first wave path guides 500 . It may be formed between the second battery modules 300 of
- the battery pack according to the present embodiment is mainly mounted inside the electric vehicle, and since the periphery of the mounted battery pack is made of a metal material, there is a risk of deterioration of communication performance due to the multi-path phenomenon of radio waves reflected by the metal material. there is. Accordingly, according to the present embodiment, the first and second wave path guides 400 to cover the space between the plurality of first and second battery modules 200 and 300 in which the plurality of first and second slave BMSs 600 and 700 are installed. , 500) may be formed. Accordingly, wireless transmission performance can be improved by concentrating the distribution of wireless transmission signals in the space between the plurality of first and second battery modules 200 and 300 formed between the first and second wave path guides 400 and 500 . . In addition, deterioration that may occur in communication between the master BMS 800 and the first and second slave BMSs 600 and 700 can be minimized.
- the conventional slave BMSs are outside
- the wireless transmission coefficient S21 among the S-parameters is improved by 18dB from -53.78dB to -35.21dB, so that a stable communication connection structure can be established.
- the master BMS 800 may be further included between the first wave path guide 400 and the second wave path guide 500 to be separated from the plurality of first and second battery modules.
- the master BMS 800 may communicate with the upper system.
- the master BMS 800 may manage communication with the plurality of first and second slave BMSs 600 and 700 .
- the first and second wave path guides 400 are formed to extend in the first direction to the position where the master BMS 800 is disposed so as to pass through the plurality of first and second battery modules 200 and 300 , and the master BMS 800 . may be disposed at positions spaced apart from the plurality of first and second battery modules 200 and 300 in the first direction. In this case, the master BMS 800 may be symmetrically disposed with the plurality of first and second battery modules 200 and 300 .
- the master BMS 800 may be disposed symmetrically apart from the plurality of first and second slave BMSs 600 and 700 to perform balanced communication with the slave BMSs.
- the master BMS 800 is disposed in the space between the first and second wave path guides 400 and 500 together with the first and second slave BMSs 600 and 700, so that the master BMS 800 and the first and second slave BMSs. It is possible to minimize deterioration of communication between 600 and 700 and secure wireless communication performance.
- antennas may be formed in the first and second slave BMSs 600 and 700 .
- the antenna may include a chip antenna. According to the experimental example, when chip antennas are used for the first and second slave BMSs 600 and 700 according to the present embodiment, superior wireless performance by 10 dB or more can be secured compared to when a pattern antenna is used.
- the battery pack according to the present embodiment further includes a battery pack upper cover 130 covering the upper surface of the battery case 100 .
- a battery pack upper cover 130 covering the upper surface of the battery case 100 .
- at least one hole 130a may be formed in the battery pack upper cover 130 .
- the heat dissipation function of the battery pack may be performed through the hole 130a formed in the battery pack upper cover 130 .
- the hole 130a connecting the outside and the inside of the battery pack, noise may occur during communication between the BMSs, and when the size of the hole 130a increases, the noise may also increase. Therefore, the number and size of the holes 130a that can adequately satisfy both the heat dissipation performance and the noise performance at the same time may be applied.
- the diameter of the hole was set to 45 mm.
- wireless transmission performance can be secured, and when designed to be smaller than 20mm, noise response performance can be secured.
- noise response performance can be secured.
- the same noise-response performance may be obtained, and a structure in which a plurality of small-diameter holes are disposed in consideration of heat dissipation and noise performance may be advantageous.
- a plurality of holes may be disposed in the battery pack upper cover 130 according to the above experimental example.
- a plurality of first reflected wave absorbers are disposed on one side of the plurality of first battery modules 200 facing the plurality of second battery modules 300 . 1100 and a plurality of second reflected wave absorbers 1200 disposed on one side of the plurality of second battery modules 300 facing the plurality of first battery modules 200 .
- the transmission signal is concentrated in the space between the first and second wave path guides 400 and 500 to form the first ,2
- the radio communication performance may be deteriorated due to reflected interference waves from the components provided between the wave path guides 400 and 500 .
- a plurality of first reflected wave absorbers 1100 are disposed on one side of the plurality of first battery modules 200 for each battery module, so that the first ,2 By absorbing reflected interference waves that may be generated from components provided between the wave path guides 400 and 500, it is possible to create an environment in which wireless communication is not disturbed by the reflected interference waves.
- the plurality of second battery modules 300 also include the plurality of second battery modules of FIG. 4 . 1 It is symmetrical with the arrangement structure of the battery modules 200 and is the same. Accordingly, a plurality of second reflected wave absorbers 1200 are also provided on one side of the plurality of second battery modules 300, and the plurality of first reflected wave absorbers 1100 and the plurality of second reflected wave absorbers 1200 are symmetrical to each other. and can be arranged.
- the plurality of first reflected wave absorbers 1100 are provided below the first wave path guide 400 and the first slave BMS 600 , the first wave path guide 400 and the first slave BMS 600 . ) and may be spaced apart from each other.
- the plurality of second reflected wave absorbers 1200 may be disposed below the second wave path guide 500 and the second slave BMS 700 to be spaced apart from the second wave path guide 500 and the second slave BMS 700 .
- the plurality of first reflected wave absorbers 1100 may be arranged to correspond to the plurality of first slave BMSs 600 under the plurality of first slave BMSs 600 .
- the plurality of second reflected wave absorbers 1200 may be arranged to correspond to the plurality of second slave BMSs 700 under the plurality of second slave BMSs 700 .
- the first and second reflected wave absorbers 1100 and 1200 are disposed at positions spaced apart from the first and second slave BMSs 600 and 700 to interfere with the wireless communication function of the first and second slave BMSs 600 and 700 It can be installed in a location where it is not.
- the first and second reflected wave absorbers 1100 and 1200 are provided inside the battery pack together with the first and second wave path guides 400 and 500 so that the transmission path is transmitted through the first and second wave path guides 400 and 500 .
- reflected interference waves can be removed through the first and second reflected wave absorbers 1100 and 1200, so that the wireless transmission performance of the battery pack according to the present embodiment can be maximized.
- FIG. 5 is a diagram illustrating an interval between slave BMSs according to a portion D of FIG. 2 , according to an embodiment of the present invention.
- the plurality of first slave BMSs 600 and the plurality of second slave BMSs 700 may be formed to be spaced apart from each other to have a gap G1 . More specifically, the plurality of first slave BMS 600 arranged in the plurality of first battery modules 200 and the plurality of second slave BMS 700 arranged in the plurality of second battery modules 300 are They may be formed to be spaced apart from each other.
- the separation distance between the first slave BMS 600 and the second slave BMS 700 may be formed to be 50 mm.
- the distance between the two battery modules arranged in two rows is arranged to be rather narrow at 30 mm, but as in this embodiment, by increasing the distance between the two battery modules to 50 mm, the wireless transmission space is increased, and thus the wireless transmission performance is improved.
- FIG. 6 is a view showing the height of the outer wall of the battery case according to an embodiment of the present invention as part C of FIG. 4 .
- the upper end of the outer wall 120 of the battery case 100 and the battery pack upper cover 130 are coupled, and the battery pack upper cover 130 is It may be formed to be spaced apart from the plurality of first and second battery modules 200 and 300 .
- the height H2 of the outer wall 120 may be formed to be 138 mm.
- the height of the outer wall is formed to be 128 mm, but according to this embodiment, the wireless transmission performance can be improved by making the height H2 of the outer wall 120 higher than the height of the conventional outer wall. In other words, as the height H2 of the outer wall 120 increases, the wireless transmission performance may be improved.
- FIG. 6 only the portion where the plurality of first slave BMS 600 and the first wave path guide 400 are formed is shown, but the plurality of second slave BMS 700 and the second wave path guide 500 formed on the opposite side are shown.
- a portion in which is formed is also symmetrically disposed in the same manner as in the configuration of FIG. 6 .
- FIG. 7 is a view showing the height of a cross beam of a battery case according to an exemplary embodiment of the portion C of FIG. 4 .
- the battery pack according to an embodiment of the present invention includes a plurality of first battery modules arranged to span between two adjacent battery modules among each battery module of the plurality of first battery modules 200 .
- the bus bar 910 and a plurality of second bus bars 920 arranged to span between two adjacent battery modules among each of the battery modules of the plurality of second battery modules 300 may be included.
- the cross beam 110 may be formed to be spaced apart from the plurality of first and second bus bars 910 and 920 under the plurality of first and second bus bars 910 and 920 , respectively.
- the height of the cross beam 110 may be formed to be 70 mm.
- the conventional cross beam 110 has a height of about 90 mm, but according to this embodiment, the wireless transmission performance can be improved by making the height H3 of the cross beam 110 lower than that of the conventional cross beam 110. there is. In other words, as the height H3 of the cross beam 110 decreases, the wireless transmission performance may be improved.
- FIG. 7 only the portion in which the plurality of first slave BMS 600 and the first wave path guide 400 are formed is shown, but a plurality of second slave BMS 700 and the second wave path guide 500 formed opposite to each other are shown. A portion in which is formed is also symmetrically disposed in the same manner as in the configuration of FIG. 6 .
- the battery pack may be applied to various devices. These devices can be applied to transportation means such as electric bicycles, electric vehicles, hybrid vehicles, etc., but the present invention is not limited thereto and can be applied to various devices that can use a battery module, which also falls within the scope of the present invention. .
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Abstract
Description
Claims (12)
- 제1 방향으로 2열 배치되는 복수의 제1 배터리 모듈과 복수의 제2 배터리 모듈;상기 복수의 제1,2 배터리 모듈을 수용하고, 상기 복수의 제1 배터리 모듈 사이 및 상기 복수의 제2 배터리 모듈 사이를 구획하는 복수의 크로스빔을 포함하는 배터리 케이스;상기 복수의 제2 배터리 모듈과 마주보는 상기 복수의 제1 배터리 모듈의 일측에 위치하고, 상기 제1 방향으로 배열되는 복수의 제1 슬레이브 BMS;상기 복수의 제1 배터리 모듈과 마주보는 상기 복수의 제2 배터리 모듈의 일측에 위치하고, 상기 제1 방향으로 배열되는 복수의 제2 슬레이브 BMS;상기 복수의 제2 배터리 모듈과 마주보는 상기 복수의 제1 배터리 모듈의 일측에 배치되는 복수의 제1 반사파 흡수체; 및상기 복수의 제1 배터리 모듈과 마주보는 상기 복수의 제2 배터리 모듈의 일측에 배치되는 복수의 제2 반사파 흡수체를 포함하는 배터리 팩.
- 제1항에서,상기 복수의 제1 배터리 모듈의 상측부에서 상기 제1 방향을 따라 연장 형성된 제1 웨이브 경로 가이드; 및상기 복수의 제2 배터리 모듈의 상측부에서 상기 제1 방향을 따라 연장 형성된 제2 웨이브 경로 가이드를 더 포함하는 배터리 팩.
- 제2항에서,상기 복수의 제1 슬레이브 BMS와 상기 복수의 제2 배터리 모듈은 각각 상기 제1 웨이브 경로 가이드와 상기 제2 웨이브 경로 가이드의 사이에서 상기 제1 방향으로 배열되는 배터리 팩.
- 제3항에서,상기 복수의 제1 반사파 흡수체는 상기 제1 웨이브 경로 가이드 및 상기 제1 슬레이브 BMS의 하측에서 상기 제1 웨이브 경로 가이드 및 상기 제1 슬레이브 BMS와 이격되게 배치되고,상기 복수의 제2 반사파 흡수체는 상기 제2 웨이브 경로 가이드 및 상기 제2 슬레이브 BMS의 하측에서 상기 제2 웨이브 경로 가이드 및 상기 제2 슬레이브 BMS와 이격되게 배치되는 배터리 팩.
- 제2항에서,상기 제1 웨이브 경로 가이드와 상기 제2 웨이브 경로 가이드 사이에서 상기 복수의 제1,2 배터리 모듈과 분리되어 형성되는 마스터 BMS를 더 포함하는 배터리 팩.
- 제5항에서,상기 제1,2 웨이브 경로 가이드는 상기 복수의 제1,2 배터리 모듈을 지나도록 상기 제1 방향으로 연장 형성되고,상기 마스터 BMS는 상기 복수의 제1,2 배터리 모듈과 상기 제1 방향으로 이격된 위치에 배치되는 배터리 팩.
- 제1항에서,상기 복수의 제1 반사파 흡수체는 상기 복수의 제1 슬레이브 BMS의 하측에서 상기 복수의 제1 슬레이브 BMS와 대응되도록 배열되고,상기 복수의 제2 반사파 흡수체는 상기 복수의 제2 슬레이브 BMS의 하측에서 상기 복수의 제2 슬레이브 BMS와 대응되도록 배열되는 배터리 팩.
- 제2항에서,상기 제1 웨이브 경로 가이드는 상기 배터리 팩 상부 커버와 상기 복수의 제1 배터리 모듈 사이에 형성되고,상기 제2 웨이브 경로 가이드는 상기 배터리 팩 상부 커버와 상기 복수의 제2 배터리 모듈 사이에 형성되는 배터리 팩.
- 제1항에서,상기 제1,2 슬레이브 BMS에는 안테나가 형성된 배터리 팩.
- 제1항에서,상기 배터리 케이스의 상면부를 커버하는 배터리 팩 상부 커버를 더 포함하고,상기 배터리 팩 상부 커버에는 적어도 하나의 홀이 형성되는 배터리 팩.
- 제1항에서,상기 복수의 제1 배터리 모듈의 각 배터리 모듈 중 인접한 두 배터리 모듈의 사이에 걸쳐지도록 배열된 복수의 제1 버스바; 및상기 복수의 제2 배터리 모듈의 각 배터리 모듈 중 인접한 두 배터리 모듈의 사이에 걸쳐지도록 배열된 복수의 제2 버스바를 포함하는 배터리 팩.
- 제1항에 따른 배터리 팩을 포함하는 디바이스.
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| CN202180007904.5A CN114902467B (zh) | 2020-10-12 | 2021-10-07 | 电池组及包括该电池组的装置 |
| US17/785,275 US20220376311A1 (en) | 2020-10-12 | 2021-10-07 | Battery pack and device including the same |
| EP21880407.8A EP4053964B1 (en) | 2020-10-12 | 2021-10-07 | Battery pack and device including the same |
| JP2022533201A JP7387207B2 (ja) | 2020-10-12 | 2021-10-07 | バッテリーパックおよびこれを含むデバイス |
| ES21880407T ES3037500T3 (en) | 2020-10-12 | 2021-10-07 | Battery pack and device including the same |
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| KR1020200131093A KR102837606B1 (ko) | 2020-10-12 | 2020-10-12 | 배터리 팩 및 이를 포함하는 디바이스 |
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| KR102862710B1 (ko) * | 2024-03-28 | 2025-09-23 | 주식회사 엘지에너지솔루션 | 배터리 팩 |
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- 2021-10-07 HU HUE21880407A patent/HUE072589T2/hu unknown
- 2021-10-07 WO PCT/KR2021/013818 patent/WO2022080760A1/ko not_active Ceased
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Also Published As
| Publication number | Publication date |
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| JP7387207B2 (ja) | 2023-11-28 |
| KR102837606B1 (ko) | 2025-07-22 |
| US20220376311A1 (en) | 2022-11-24 |
| EP4053964A4 (en) | 2024-06-19 |
| HUE072589T2 (hu) | 2025-11-28 |
| CN114902467A (zh) | 2022-08-12 |
| ES3037500T3 (en) | 2025-10-02 |
| EP4053964B1 (en) | 2025-06-25 |
| KR20220048214A (ko) | 2022-04-19 |
| JP2023505470A (ja) | 2023-02-09 |
| EP4053964A1 (en) | 2022-09-07 |
| CN114902467B (zh) | 2025-07-15 |
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