Battery management system using ultrahigh frequency communication

Abstract

The present invention relates to a battery management system using ultrahigh frequency communication, and more particularly, to a battery management system using ultrahigh frequency communication, which makes design and system construction simpler and can detect an abnormality of a single battery cell by excluding a wire harness using ultrahigh frequency communication when constructing the battery management system. The battery management system using ultrahigh frequency communication according to the present invention, as a battery management system using an ultrahigh frequency communication processing unit, comprises: a plurality of battery cells arranged side by side; the battery management module is used for confirming and managing the state of the battery unit; each of the plurality of battery cells includes: a dielectric substrate; the at least one ultrahigh frequency communication processing unit is configured on the dielectric substrate; and an antenna which is electrically connected to the ultrahigh frequency communication processing unit, is disposed in the edge region of the dielectric substrate, and is provided so as to be able to transmit and receive electromagnetic wave signals in the side surface direction of the dielectric substrate.

Description

Technical Field

[0001] The present invention relates to a battery management system using ultra-high frequency communication, and more particularly to a battery management system using ultra-high frequency communication (Batterymanagement system using EHF communication) that can exclude wiring harnesses by using ultra-high frequency communication when constructing the battery management system, thereby making the design and system construction simpler and capable of detecting abnormalities in individual battery cells. Background Art

[0002] In modern society, batteries are widely applied to various electronic devices such as mobile devices, laptop computers, and cameras. In particular, recently, with the rapid technological development and sales of electric vehicles, batteries applicable to electric vehicles and battery management systems (BMS, Battery Management System) capable of managing the above-mentioned batteries have become particularly important.

[0003] A battery management system (BMS) is a system that can prevent problems caused by batteries and collect, manage, and control the state of batteries to ensure stable use. In particular, its role in electric vehicles is very important.

[0004] The battery management system (BMS) can measure the temperature, current, voltage, etc. of the battery by using various sensors connected to the battery cells and calculate data related thereto. Then, by using the battery management module, the above-mentioned data is compared and analyzed with a preset diagnostic reference value to diagnose the state of the battery.

[0005] The safe operation of the battery can be controlled by diagnosing the battery state in the above-described manner. In the case where the diagnostic result determines that the battery cannot continue to operate normally, various problems that may occur due to the battery can be prevented in advance by control methods such as stopping the battery from operating and separating it from the system.

[0006] However, in existing battery management systems (BMS), a structure is adopted in which communication connectors are formed on each battery cell or battery module and vehicle communication cables called wiring harnesses are connected, so as to transmit the battery state information of each battery cell or battery module to the battery management module.

[0007] That is, in the structure of the existing battery management system (BMS) as described above, physical communication cables are required, so the spatial configuration for the above-mentioned cables must be reflected in the design, resulting in an increase in design difficulty and great difficulty in efficiently arranging battery cells.

[0008] In addition, in order to reduce the design difficulty and efficiently configure battery cells, it is necessary to minimize the number of cables. Currently, a method is adopted in which multiple battery cells are connected into a continuous connection line using one cable and the information is transmitted to the battery management module.

[0009] However, when adopting the above-mentioned method, even in the case where the wire harness is disconnected or only a problem occurs in a specific battery cell, it will still cause the problem that the battery management module cannot receive the information of the entire battery cell. Therefore, in the above-mentioned cases, the battery management module will not be able to identify the problem of a specific battery cell or the disconnection of the wire harness, but can only determine that there is a problem with the entire battery module connected to one wire harness, resulting in problems such as the need to shut down the entire corresponding battery module and being unable to effectively manage and control.

[0010] To solve the above-mentioned problems, a method of connecting each battery cell to the battery management module in a 1:1 manner can be considered. However, considering the number of battery cells required to form the output for driving the vehicle to move in an electric vehicle, the size of the battery module, and the number of wire harnesses required, etc., the above-mentioned 1:1 connection method cannot actually be achieved.

[0011] Therefore, a solution is needed that can enable the battery management module to identify the specific battery cell with a problem rather than all the battery cells connected to the corresponding wire harness or identify that only the wire harness has a problem while the battery cells are normal even in the case where the wire harness is disconnected or only a certain battery cell configured in the middle part has a problem.

[0012] Prior art documents

[0013] Patent Document 1: Korean Registered Patent No. 10-2236057 (Title of the Invention: Method and System for Changing Battery Diagnosis Conditions of a Battery Management System (BMS) Connected by a Connector)

[0014] Patent Document 2: Korean Registered Patent No. 10-2204983 (Title of the Invention: Battery Management Device, Battery Pack Including the Battery Management Device, and Automobile) Summary of the Invention

[0015] The present invention aims to solve the above-mentioned problems, and its purpose is to provide a battery management system using ultra-high frequency communication that can exclude wire harnesses when constructing the battery management system, thereby making the design and system construction simpler, and can detect abnormalities of individual battery cells.

[0016] In order to achieve the object of the present invention as described above, a battery management system using ultra-high frequency communication according to the present invention is characterized in that: as a battery management system using an ultra-high frequency communication processing unit, it includes: a plurality of battery units arranged side by side; and a battery management module for confirming and managing the states of the battery units; each of the plurality of battery units includes: a dielectric substrate; at least one ultra-high frequency communication processing unit disposed on the dielectric substrate; and an antenna electrically connected to the ultra-high frequency communication processing unit and disposed in an edge region of the dielectric substrate so as to be capable of transmitting and receiving electromagnetic wave signals in a side direction of the dielectric substrate.

[0017] Among them, the edge of the dielectric substrate of any one battery unit faces the edge of the dielectric substrate of an adjacent another battery unit and performs ultra-high frequency communication with each other. When performing the ultra-high frequency communication, the any one battery unit can transmit its own battery state information to the adjacent another battery unit.

[0018] In addition, when performing the ultra-high frequency communication, each ultra-high frequency communication processing unit can use a frequency in the band of 30 GHz to 300 GHz.

[0019] In addition, another battery unit adjacent to the another battery unit includes: a dielectric substrate; at least one ultra-high frequency communication processing unit disposed on the dielectric substrate; and an antenna electrically connected to the ultra-high frequency communication processing unit and disposed in an edge region of the dielectric substrate so as to be capable of transmitting and receiving electromagnetic wave signals in a side direction of the dielectric substrate; the another battery unit can transmit the battery state information transmitted from the any one battery unit and its own battery state information to the adjacent another battery unit.

[0020] In addition, the battery state information of each battery unit is transmitted to an adjacent battery unit. The battery unit that receives the transmitted battery state information adds its own battery information and then transmits it to an adjacent another battery unit, so as to accumulate the battery state information of each battery unit. The battery unit adjacent to the battery management module transmits the accumulated battery state information of each battery unit to the battery management module, so that the battery management module can collect the battery state information of each battery unit.

[0021] In addition, each of the plurality of battery units may respectively include: at least one ultra-high frequency communication processing unit; at least one distributor (PD) for distributing signals transmitted from the ultra-high frequency communication processing unit; and a plurality of antennas disposed along the periphery of the edge of the dielectric substrate of each battery unit, so as to be capable of respectively transmitting the signals branched from the distributor (PD) to a plurality of adjacent battery units.

[0022] In addition, each of the plurality of battery cells may further include: an amplifier (PA) disposed on the output side of the distributor (PD) to be able to amplify the signal branched out by the distributor (PD).

[0023] In addition, the battery management system using the ultra-high frequency communication processing unit may further include: a monitoring module disposed across the plurality of battery cells and configured at a certain distance from each of the battery cells; each of the plurality of battery cells may further include: an antenna configured to be able to transmit electromagnetic wave signals upward; the monitoring module may receive the signals respectively transmitted upward from the plurality of battery cells and transmit them to the battery management module, so that the battery management module collects the battery state information of each battery cell.

[0024] According to the present invention, by using ultra-high frequency communication when constructing the battery management system, the wiring harness can be eliminated, making the design and system construction simpler, and the possibility of problems such as wiring harness disconnection or poor signal can be eliminated, thus constructing a stable system.

[0025] In addition, status information can be transmitted between each individual battery cell and between the battery cells and the battery management module by using ultra-high frequency communication, so as to achieve very fast and accurate transmission, and thereby enable the battery management module to quickly and accurately control and manage each battery cell.

[0026] In addition, the battery state information of each individual battery can be transmitted to the battery management module through multiple channels, so that even when a particular battery cell fails, the information of the remaining battery cells can be transmitted to the battery management module, and the battery management module can accurately identify which particular battery has a problem.

[0027] In addition, a distributor can be used to branch the signal transmitted from one ultra-high frequency communication processing unit and transmit it to multiple antennas, so as to transmit the battery state information through multiple channels.

[0028] In addition, an amplifier can be disposed on the output side of the distributor to stably transmit the signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 And Figure 2 is a configuration diagram of a first embodiment of a battery management system using ultra-high frequency communication according to an embodiment of the present invention.

[0030] Figure 2 is Figure 1The main component diagram of the battery management system using ultra-high frequency communication shown therein.

[0031] Figures 3 to 5 It is a component diagram of the ultra-high frequency communication unit of the battery management system using ultra-high frequency communication according to an embodiment of the present invention.

[0032] Figure 6 It is a component diagram of another embodiment of the ultra-high frequency communication unit of the battery management system using ultra-high frequency communication according to the present invention.

[0033] Figure 7 And Figure 8 It is a conceptual diagram of another embodiment of the ultra-high frequency communication unit of the battery management system using ultra-high frequency communication according to the present invention.

[0034] Figure 9 It is Figure 7 And Figure 8 It is a component diagram of an embodiment of the ultra-high frequency communication unit of the battery management system using ultra-high frequency communication shown therein.

[0035] Figure 10 And Figure 11 It is Figure 7 And Figure 8 It is a component diagram of another embodiment of the ultra-high frequency communication unit of the battery management system using ultra-high frequency communication shown therein.

[0036] Figure 12 It is a component diagram of yet another embodiment of the battery management system using ultra-high frequency communication according to the present invention. Detailed implementation mode

[0037] The features and effects of the present invention as described above will be further clarified through the following detailed description related to the accompanying drawings, so that those with ordinary knowledge in the technical field to which the present invention belongs can easily implement the technical idea of the present invention. The present invention can be variously modified and has various forms. Next, specific embodiments will be illustrated in the accompanying drawings and described in detail in the text. However, this is not to limit the present invention to a specific disclosed form, but should be understood to include all modifications, equivalents, and alternatives included within the spirit and technical scope of the present invention. The terms used in this application are only for describing specific embodiments and are not intended to limit the present invention.

[0038] Next, the composition, effects, and preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0039] Figure 1is a configuration diagram of a battery management system using extremely high frequency (EHF) communication according to the present invention, and Figure 2 is Figure 1 a plan view configuration diagram of the system illustrated in. Next, reference will be made to the Figure 1 and Figure 2 to describe a battery management system using ultra-high frequency communication according to the present invention.

[0040] The battery management system using ultra-high frequency communication according to the present invention, as Figure 1 shown, includes a plurality of battery cells 10 and a battery management module 30, and may further include a monitoring module 40.

[0041] The plurality of battery cells 10, as Figure 1 and Figure 2 shown, are arranged side by side so as to be configured in such a way that they can transfer output to each other when a high output is required in an electric vehicle.

[0042] The plurality of battery cells 10 may be arranged in a row, and for the convenience of explanation, generally, a set of battery cells 10 arranged in a row is referred to as a battery module 20.

[0043] The system may be composed of one battery module 20 as described above, that is, a set of a plurality of battery cells arranged in a row. However, as Figure 6 shown, a plurality of battery modules 20 may be arranged side by side to form a battery system, and generally, in an electric vehicle, a battery system is composed of a plurality of battery modules 20.

[0044] Since the electrical characteristics, output, and internal structure of the battery cell 10 are well-known technologies, detailed descriptions thereof will be omitted, and only the differential characteristics of the present invention will be described.

[0045] As described above, currently, in order for the battery management module 30 to collect, judge, manage, and control the battery state information of each battery cell 10, a wire harness (communication cable) is used. However, in the present invention, ultra-high frequency wireless communication is used to remove the wire harness (communication cable).

[0046] For this purpose, each battery cell 10 according to the present invention includes: a dielectric substrate 100; at least one or more ultra-high frequency communication processing units 200 disposed on the dielectric substrate 100; and an antenna 300 electrically connected to the ultra-high frequency communication processing unit 200 and disposed in an edge region of the dielectric substrate so as to be capable of transmitting and receiving electromagnetic wave signals in a lateral direction of the dielectric substrate.

[0047] The dielectric substrate 100 can be a dielectric substrate commonly used in circuit formation and can be a rectangular substrate commonly used.

[0048] The extremely high frequency (EHF) communication unit 200 can transmit, receive, convert, and process signals in the extremely high frequency (EHF) band. For this purpose, although not shown, it may include a phase synchronization circuit (VOC), a modulator, a power amplifier (PA), a low-noise amplifier (LNA), a detector, and a limiter. The configuration of the communication chip for performing extremely high frequency (EHF) communication as described above is a well-known configuration, and detailed descriptions related thereto will be omitted herein.

[0049] The antenna 300 is a device for transmitting and receiving electromagnetic waves for communication, and can transmit the signal transmitted from the extremely high frequency (EHF) communication unit 200 in the form of radio waves, and can also receive radio waves transmitted from other adjacent or juxtaposed antennas.

[0050] The antenna 300 as described above is electrically connected to the extremely high frequency (EHF) communication unit 200, and can transmit and receive electromagnetic waves in the lateral direction of the dielectric substrate 100 by being disposed in the edge region of the node substrate 100.

[0051] At this time, the antenna 300 can be disposed in part or all of the edge region of the dielectric substrate 100 as shown, and depending on the specific situation, it can be configured as shown to communicate with the battery cells 10' of other adjacent battery modules 20'. The reason for adopting the above configuration will be described in the following content. Figure 3 shown, and can be configured in part or all of the edge region of the dielectric substrate 100 as shown, and depending on the specific situation, it can be configured in the manner shown to communicate with the battery cells 10' of other adjacent battery modules 20'. The reason for adopting the above configuration will be described in the following content. Figure 9 shown, and the reason for adopting the above configuration will be described in the following content.

[0052] In addition, although not shown, the antenna 300 can be disposed upward to facilitate transmitting electromagnetic waves above the battery cell 10, which will also be described in the following content.

[0053] Among them, according to the configurations of the respective battery cells 10 and battery modules 20, at least one region of the edge of the dielectric substrate 100 will face each other, so the antennas 300 will also be arranged facing each other. At this time, due to the characteristics of extremely high frequency (EHF) band communication, the antennas 300 facing each other will form a communication pair and communicate with each other.

[0054] For reference, the extremely high frequency band communication processing unit uses a frequency band of 30 GHz to 300 GHz.

[0055] Next, based on the basic configuration described above, each embodiment of the configuration example of the battery management system according to the present invention will be described in order.

[0056] First, as an embodiment of the battery management system using ultra-high frequency communication according to the present invention, each battery unit 10 can be configured and constituted as Figure 1 and Figure 2 shown.

[0057] Among them, each battery unit 10 is arranged in a column to form a battery module 20, and the ultra-high frequency communication unit 15 included in each battery unit 10 performs ultra-high frequency communication with other adjacent battery units 10.

[0058] When performing ultra-high frequency communication in the state described above, the ultra-high frequency communication unit 15 can, as Figure 2 shown, transmit its own battery state information to other adjacent battery units 10.

[0059] In addition, other battery units 10 that receive the battery state information from a certain battery unit 10, as Figure 2 shown, further transmit the battery state information transmitted from a certain battery unit 10 and their own battery state information to another adjacent battery unit 10.

[0060] In other words, the battery state information of each battery unit is transmitted to adjacent battery units, and the battery unit that receives the transmitted battery state information adds its own battery information and then transmits it to another adjacent battery unit, thereby accumulating the battery state information of each battery unit. Furthermore, the battery unit adjacent to the battery management module 30 transmits the accumulated battery state information of each battery unit to the battery management module 30, so that the battery management module can collect the battery state information of each battery unit and manage and control it by analyzing it.

[0061] That is, the battery state information of each battery unit 10 can be accumulated and transmitted by adjacent battery units 10, and finally the battery management module 20 receives the accumulated battery state information of each battery unit through the ultra-high frequency communication unit 35, so that the battery management unit 30 can collect, monitor, manage, and control the current states of each battery unit 10 in real time.

[0062] Among them, although there are various communication methods such as wireless network (wi-fi) and Bluetooth, the reason for using ultra-high frequency communication in the battery management system is the characteristics of ultra-high frequency communication.

[0063] Among them, regarding the characteristics of ultra-high frequency communication, ultra-high frequency communication has the characteristic that communication pairs must be formed to conduct communication. If explained in another way, as long as communication pairs are formed, communication can be directly carried out even without processes such as pairing with each other. Therefore, there is no need for separate setting, but as long as there is physical alignment, that is, as long as the line of sight matches, communication can be executed. Therefore, it is very suitable for application in the battery management system of vehicles.

[0064] If explained in another way, because ultra-high frequency communication can only conduct communication when it has a short communication distance and the two parties face each other (forming a communication pair), there is no possibility of communication obstacles and communication chaos caused by other vehicles or other electronic devices.

[0065] In other words, if vehicle interior communication is carried out using methods such as wireless network (Wi-Fi) or Bluetooth, communication obstacles may occur in various situations such as in a public wireless network environment or when people inside the vehicle use a hotspot. Considering the size, weight, and moving characteristics of the vehicle, this may lead to very dangerous situations.

[0066] Therefore, by using ultra-high frequency in the battery management system of vehicles, the risks of the above-mentioned chaos or signal obstacles can be completely eliminated.

[0067] As another characteristic, because the ultra-high frequency band is used, it is possible to achieve the ultra-fast transceiver of data and information far exceeding that of wireless network (Wi-Fi) or Bluetooth (for example, the data transfer speed of Bluetooth is 1 Mbps - 3 Mbps, while the transfer speed of ultra-high frequency band communication is 100 Gbps).

[0068] Although the recently developed Bluetooth 5.0 can reach a speed of 25 Mbps, it is still only one-four thousandth of the speed of ultra-high frequency band communication. Therefore, there is no comparability in terms of communication speed. Considering that when a vehicle is traveling at a speed limit of 110 km / h on a highway, the traveling distance per second exceeds 30 meters, the importance of communication speed for vehicle interior communication is self-evident.

[0069] In addition, taking electric vehicles as an example, some media have pointed out that when a battery thermal runaway occurs, the fire will spread rapidly, and when a battery fire occurs, it takes more than two hours and more than 40,000 liters of water to successfully extinguish it, that is, it is very difficult to extinguish a battery fire.

[0070] Therefore, in terms of the application level of a vehicle, when ultra-high frequency communication is utilized in a battery management system, since the status information is transmitted by ultra-high frequency communication between individual battery cells and between battery management modules, it can be transmitted very quickly and accurately. As a result, the battery management module can quickly and accurately control and manage each battery cell, which is very beneficial for the safety of the vehicle and the user and the stability of communication.

[0071] In addition, in terms of design and manufacturing, by using ultra-high frequency communication to form a battery management system, the construction of the system can be made simpler, and the possibility of problems such as wire harness disconnection or poor signal can be eliminated, thus constructing a stable system.

[0072] In addition, in order to implement the above-described algorithm, that is, the method of sequentially transmitting battery status information and finally transmitting it to the battery management module 30, each battery cell 10 includes an ultra-high frequency communication processing unit 15, and each ultra-high frequency communication unit 15, as Figure 3 shown, the ultra-high frequency communication processing unit 200 can be configured within the dielectric substrate 100, and in order to communicate with the ultra-high frequency communication units of adjacent battery cells 10, a plurality of antennas 300 can be arranged in the direction of adjacent battery cells.

[0073] Among them, when constructing each ultra-high frequency communication unit 15, as Figure 3 shown, a single ultra-high frequency communication unit 15 can be directly branched through the antenna 300. As another example of the ultra-high frequency communication unit 15, as Figure 4 and Figure 5 shown, based on the dielectric substrate 100, the ultra-high frequency communication processing unit 200, and the antenna 300, a power divider (PD) and an amplifier (PA) can also be included.

[0074] Conceptually, a signal is sent from one ultra-high frequency communication processing unit 200, and the signal sent at this time can be branched into two signals by the power divider 400.

[0075] Regarding the above-described branched signals, in order to adjust the output of each signal and ensure stabilization and reliability, the signal output from the power divider 400 can be amplified by the amplifier 500 arranged on the output side of the power divider 400 and then transmitted to the antenna 300.

[0076] Moreover, as described above, it can also be directly transmitted to each antenna 300 without passing through the power divider 400 and the amplifier 500 in the manner as Figure 3 shown, and then transmitted through the antenna 300.

[0077] In addition, as another example of a battery management system using ultra-high frequency according to the present invention, the battery cells 10 can also be configured in a form where a plurality of battery modules 20, 20' are formed side by side.

[0078] Taking an electric vehicle as an example, in order to ensure the output, the battery cell configuration method as described above is usually adopted. In the above-mentioned case, when simplifying the battery management system using ultra-high frequency according to the present invention, it can be configured in the manner as Figure 6 shown.

[0079] In the above-mentioned case, as Figure 6 shown, when configured in the manner described in the previous embodiment, the battery information will only be sequentially transmitted and accumulated between the battery cells 10 arranged in a single column and then transmitted to the battery management module 30, and there will be no communication between the respective battery modules 20, 20'.

[0080] In the above-mentioned case, when one or more of the battery cells 10 included in a battery module 20 have problems, the corresponding battery cells 10 will no longer be able to work. In the above-mentioned case, even if only one battery cell 10 has a problem, since it is impossible to identify which battery cell 10 has the problem, it may be necessary to shut down the entire battery module 20 containing the corresponding battery cell 10.

[0081] Therefore, in order to be able to identify the problematic battery cells 10 in the above-mentioned case, conceptually, the ultra-high frequency communication lines can be formed in the manner as Figure 7 and Figure 8 shown.

[0082] Regarding this, as Figure 7 shown, in the case where the battery system is composed of two columns of battery modules, communication is not only carried out within the battery modules described by itself, but also can be carried out with the battery cells 10' included in other adjacent modules.

[0083] In the above-mentioned case, even if a specific battery cell in the battery module to which it belongs has a problem, the accumulated battery information and its own battery information can be transmitted to the battery management module 30 through other adjacent battery modules, so it is possible to separately confirm which specific battery cell has the problem.

[0084] Expanding on this, as Figure 8 shown, even if it is composed of three columns, the result can still be through the communication path algorithm of the same concept. Even when a specific battery cell has a problem, through the other battery cells except the corresponding battery cell, the battery management module 30 can collect and master the battery information of each battery cell.

[0085] Therefore, it is of course necessary to configure an antenna facing the battery cells belonging to adjacent battery modules, and as Figure 9 shown, signals can be branched by a single ultra-high frequency communication processing unit 200 and transmitted to multiple antennas 300.

[0086] At this time, in order to ensure stability by increasing the output, a distributor 400 and an amplifier 500 can be additionally allocated in a manner similar to the above-described configuration. As Figure 10 and Figure 11 shown, during the process of branching signals by a single ultra-high frequency communication processing unit 200 and transmitting them to multiple antennas 300, the signals can pass through the distributor 400 and the amplifier 500.

[0087] In addition, even in the case of adopting the above-described path configuration, the configuration of sequentially transmitting battery information in its own module, and the configuration of sequentially transmitting battery information through adjacent modules that do not belong to itself, it is still possible for all adjacent battery cells to have problems simultaneously.

[0088] At this time, since battery information cannot be transmitted through other adjacent modules either, due to the characteristics of a moving object such as an automobile, very serious dangers may occur.

[0089] Therefore, in order to solve the above-described problems, the battery management system using ultra-high frequency communication according to the present invention, as Figure 12 shown, may further include: a monitoring module 40, which is arranged to straddle above each battery module, i.e., above multiple battery cells, so as to receive the states of each battery cell and transmit them to the battery management module 30, and is configured at a certain interval from each battery cell.

[0090] The above-described monitoring module 40, as Figure 12 shown, includes multiple antennas and an ultra-high frequency signal receiving unit 45. The above-described ultra-high frequency signal receiving unit 45 can receive signals respectively sent from multiple battery cells and transmit them to the battery management module 30, thereby ensuring that the battery management module 30 can collect, analyze, manage, and control the battery state information of each battery cell under any circumstances.

[0091] The battery management system using ultra-high frequency communication according to an embodiment of the present invention has been described above. By adopting the battery management system as described above, the user can eliminate the wiring harness by using ultra-high frequency communication when constructing the battery management system, making the design and system construction simpler. Moreover, the possibility of problems such as wiring harness disconnection or poor signal can be eliminated, thus constructing a stable system.

[0092] In addition, ultra-high frequency communication can be used to transmit status information between individual battery cells and between battery management modules, enabling very fast and accurate transmission, and thereby allowing the battery management module to quickly and accurately control and manage each battery cell.

[0093] In addition, the battery status information of each individual battery can be transmitted to the battery management module through multiple channels, so that even when a particular battery cell fails, the information of the remaining battery cells can be transmitted to the battery management module, and the battery management module can accurately identify which particular battery has a problem.

[0094] In addition, a distributor can be used to branch the signal transmitted from one ultra-high frequency communication processing unit and transmit it to multiple antennas, thereby transmitting the battery status information through multiple channels.

[0095] In the above detailed description of the present invention, the preferred embodiments of the present invention have been described. However, those skilled in the relevant technical field or those with general knowledge in the relevant technical field should understand that the present invention can be modified and changed in various ways without departing from the spirit and technical field of the present invention as described in the claims.

[0096] Description of Reference Numerals

[0097] 10: Battery cell; 20: Battery module; 30: Battery management module; 100: Dielectric substrate; 200: Ultra-high frequency communication processing unit; 300: Antenna; 400: Distributor; 500: Amplifier.

Claims

1. A battery management system using ultra-high frequency communication, characterized in that: As a battery management system using an ultra-high frequency communication processing unit, it includes: A plurality of battery cells arranged side by side; and A battery management module to confirm and manage the status of the battery unit; The plurality of battery cells respectively include: A dielectric substrate; at least one ultra-high frequency communication processing unit, arranged on the dielectric substrate; and an antenna, electrically connected to the ultra-high frequency communication processing unit and arranged in an edge area of ​​the dielectric substrate, so as to be able to transmit and receive electromagnetic wave signals in the lateral direction of the dielectric substrate.

2. The battery management system using ultra-high frequency communication according to claim 1, characterized in that: The edge of the dielectric substrate of any battery cell and the edge of the dielectric substrate of another adjacent battery cell face each other and perform ultra-high frequency communication with each other. When performing the ultra-high frequency communication, any battery cell transmits its own battery status information to the other adjacent battery cell.

3. The battery management system using ultra-high frequency communication according to claim 2, characterized in that: When performing the ultra high frequency communication, each ultra high frequency communication processing unit uses a frequency in a 30 GHz to 300 GHz band.

4. The battery management system using ultra-high frequency communication according to claim 2, characterized in that: Another battery cell adjacent to the another battery cell comprises: A dielectric substrate; at least one ultra-high frequency communication processing unit, disposed on the dielectric substrate; and an antenna, electrically connected to the ultra-high frequency communication processing unit and disposed in an edge region of the dielectric substrate, configured to be able to transmit and receive electromagnetic wave signals in a lateral direction of the dielectric substrate; The another battery unit transmits the battery status information transmitted from any one of the battery units and its own battery status information to the adjacent another battery unit.

5. The battery management system using ultra-high frequency communication according to claim 4, characterized in that: The battery status information of each battery cell is transmitted to the adjacent battery cells. The battery cell that receives the transmitted battery status information adds its own battery information and then transmits it to another adjacent battery cell, thereby accumulating the battery status information of each battery cell. The battery cells adjacent to the battery management module transmit the accumulated battery status information of each battery cell to the battery management module, so that the battery management module collects the battery status information of each battery cell.

6. The battery management system using ultra-high frequency communication according to claim 5, characterized in that: The plurality of battery cells respectively include: At least one UHF communication processing unit; at least one distributor (PD) for distributing the signal transmitted from the UHF communication processing unit; and a plurality of antennas arranged around the edge of the dielectric substrate of each battery cell so as to be able to transmit the signal branched from the distributor (PD) to a plurality of adjacent battery cells respectively.

7. The battery management system using ultra-high frequency communication according to claim 6, characterized in that: The plurality of battery cells further include: The amplifier (PA) is arranged at the output end side of the distributor (PD) so as to amplify the signal branched out through the distributor (PD).

8. The battery management system using ultra-high frequency communication according to claim 7, characterized in that: The battery management system using the ultra-high frequency communication processing unit also includes: A monitoring module is provided in a manner of spanning over the plurality of battery cells and arranged in a manner of being spaced a certain distance from each of the battery cells; The plurality of battery cells also each include an antenna configured in a manner capable of transmitting an electromagnetic wave signal upward; The monitoring module receives the signals respectively sent upward from the plurality of battery cells and transmits them to the battery management module, so that the battery management module collects the battery status information of each battery cell.

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