Sound early warning device and system of energy storage cabin and container type energy storage system comprising sound early warning device of energy storage cabin

Abstract

The utility model provides a sound early warning device and system of an energy storage cabin and a container type energy storage system comprising the sound early warning device of the energy storage cabin. The sound early warning device comprises at least one sound detector, at least one data collector, a control unit and a communication module. The energy storage cabin comprises at least one cell stack; each cell stack comprises at least one cell cluster, and the outer surface of each cell cluster is provided with at least one corresponding sound detector; each sound detector is connected with one end of the corresponding data collector through a communication line; the other end of the at least one data collector is connected with the control unit through a network cable; the control unit is in communication connection with the monitoring equipment through the communication module; the sound detectors are used for collecting sound information of the battery clusters and sending the sound information to the corresponding data collectors; the data collector is used for summarizing and converting into text information, and sending the text information to the control unit; and the control unit is used for positioning the battery cluster with thermal runaway so as to obtain thermal runaway abnormal information.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage technology especially, a kind of energy storage cabin's sound early warning device, system and including the energy storage cabin's sound early warning device container type energy storage system of device. BACKGROUND

[0002] At present, container type energy storage system develops rapidly, the main reason is that the carrier lithium ion battery in it has the advantages of good energy density and higher chargeable and dischargeable times, so it is the battery product that many manufacturers are keen on.But, lithium ion battery also produces a series of harm and danger in the process of application.

[0003] In prior art, container type energy storage system includes fire-fighting system and energy storage cabin, the energy storage cabin includes at least one battery pack, battery in battery pack can occur gas leakage in use process, from the emergence of thermal runaway phenomenon, when some battery appears thermal runaway, in turn can affect the rest of battery, so as to easily explode, in prior art, when thermal runaway occurs, operation and maintenance personnel can know abnormal condition occurs through smoke alarm, and carry out fire-fighting treatment through fire-fighting system.

[0004] Therefore, when battery in energy storage cabin appears thermal runaway, need to produce certain smoke, so that smoke alarm works, so that operation and maintenance personnel can know, but when certain smoke is produced, it is already in late thermal runaway, so operation and maintenance personnel can know abnormal condition occurs in late thermal runaway, cannot know in time, in turn cannot intervene in time, so as to cause danger, some even can occur serious explosion and fire. SUMMARY

[0005] The utility model provides a kind of energy storage cabin's sound early warning device, system and including the energy storage cabin's sound early warning device container type energy storage system, to solve the problem that operation and maintenance personnel cannot know battery pack thermal runaway in time.

[0006] First, the utility model provides a kind of energy storage cabin's sound early warning device, comprising:

[0007] The sound early warning device includes at least one sound detector, at least one data collector, control unit and communication module;The energy storage cabin includes at least one battery stack;Each battery stack includes at least one battery cluster;

[0008] The outer surface of each battery cluster is mounted with at least one corresponding sound detector;

[0009] The sound detector corresponding to the last battery cluster is connected with one end of the data collector through a communication line.

[0010] The other end of the at least one data collector is connected with the control unit through a network cable.

[0011] The control unit is connected with the monitoring device through a communication module.

[0012] The sound detector is used for collecting sound information of the battery cluster and sending the sound information to the corresponding data collector; the sound information is sound information generated by the battery cluster in the initial stage of thermal runaway.

[0013] The data collector is used for summarizing and converting into text information, and sending the text information to the control unit.

[0014] The control unit is used for positioning the battery cluster with thermal runaway to obtain thermal runaway abnormal information, and sending the thermal runaway abnormal information to the monitoring device; the thermal runaway abnormal information includes the number of battery clusters with thermal runaway and the identification of the battery cluster with thermal runaway.

[0015] Optionally, the battery cluster includes N battery packs; N is greater than or equal to 1.

[0016] The corresponding sound detector is mounted on the outer surface of each battery pack.

[0017] In the same battery stack, the sound detector corresponding to the nth battery pack in the last battery cluster is connected with the sound detector corresponding to the nth battery pack in the next battery cluster through a communication line; the sound detector corresponding to the nth battery pack in the last battery cluster is connected with one end of the data collector through a communication line; n≤N.

[0018] Optionally, in the same battery stack, the sound detector corresponding to the nth battery pack in the last battery cluster is connected with the sound detector corresponding to the nth battery pack in the next battery cluster through a power supply line; the sound detector corresponding to the nth battery pack in the last battery cluster is connected with the control unit through a power supply line.

[0019] Optionally, it further includes a junction box; one end of the junction box is connected with the sound detector corresponding to all battery packs in the last battery cluster through a power supply line; the other end of the junction box is connected with the control unit through a power supply line.

[0020] Optionally, the control unit is connected with a power supply through a power supply line; the power supply provides power for the sound early warning device of the energy storage cabin.

[0021] Optionally, in the same battery stack, the sound detector corresponding to the n-th battery pack in the previous battery cluster is connected with the sound detector corresponding to the n-th battery pack in the adjacent next battery cluster through a shielding wire, the shielding wires of all the sound detectors in the last battery cluster are collected to form a collected shielding wire, and the other end of the data collector is connected with the collected shielding wire.

[0022] Optionally, the sound detector is fixed on the outer surface of the battery pack by one of an adhesive, a magnetic paste or a bolt.

[0023] Optionally, the data collector and the junction box are fixed on the top of the busbar cabinet by bolts, and the busbar cabinet is provided with a power supply.

[0024] Optionally, the control unit is fixedly installed on the wall surface of the energy storage cabin by bolts.

[0025] In the second aspect, the utility model provides a kind of sound early warning system of energy storage cabin, including the sound early warning device of energy storage cabin described in the first aspect or any item and monitoring equipment, the control unit in the sound early warning device of energy storage cabin is connected with the monitoring equipment by communication module, and the monitoring equipment is used to receive and display thermal runaway abnormal information.

[0026] In the third aspect, the utility model provides a kind of container type energy storage system, including the sound early warning device of energy storage cabin described in the first aspect or any item and energy storage cabin;At least one sound detector in the sound early warning device is installed on the outer surface of each battery pack in the energy storage cabin.

[0027] The utility model provides a kind of energy storage cabin's voice early warning device, system and including the energy storage cabin's voice early warning device of container type energy storage system, it include: voice early warning device includes: at least one sound detector, at least one data collector, control unit and communication module;Energy storage cabin includes at least one battery stack;Each battery stack includes at least one battery cluster;Each battery cluster outer surface installs corresponding at least one sound detector;In the same battery stack, the sound detector corresponding to last battery cluster and the sound detector corresponding to adjacent next battery cluster are connected by communication line, the sound detector corresponding in last battery cluster and one end of data collector are connected by communication line;The other end of at least one data collector and control unit are connected by network cable;Control unit is connected with monitoring equipment by communication module;Sound detector is used to collect the sound information of the battery cluster in, and sound information is sent to corresponding data collector;Sound information is the sound information generated by battery cluster in the initial stage of thermal runaway;Data collector is used to summarize and convert into text information, and text information is sent to control unit;Control unit is used to locate the battery cluster of thermal runaway, to obtain thermal runaway abnormal information, and thermal runaway abnormal information is sent to monitoring equipment;Thermal runaway abnormal information includes the number of battery cluster of thermal runaway and the identification of battery cluster of thermal runaway.In the utility model, sound detector is installed on the outer surface of battery cluster, so that the sound generated by battery cluster in the initial stage of thermal runaway can be collected by sound detector, and then data collector summarizes sound information and converts into text information, and sends to control unit, and text information is received by control unit, and the battery cluster of thermal runaway is located, and thermal runaway abnormal information is obtained, since sound detector is directly fixed and installed on the outer surface of battery cluster, so sound detector is in close contact with battery cluster, so when thermal runaway occurs in battery cluster, sound detector can collect sound information in the initial stage of thermal runaway, so the number of battery cluster of thermal runaway can be obtained in time, in prior art, battery cluster can be alarmed by smoke alarm and other devices in the late stage of thermal runaway, but danger may have occurred at this time, so the utility model improves timeliness;The number of battery cluster of thermal runaway and the identification of battery cluster of thermal runaway are included in thermal runaway abnormal information, so thermal runaway abnormal information is sent to monitoring equipment, to facilitate informing operation and maintenance personnel, so that operation and maintenance personnel can know abnormal condition in time and make corresponding countermeasures;In addition, sound detector is installed on the outer surface of each battery cluster in the utility model, so that sound information can be more accurately and timely collected, and timeliness is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description serve to explain the principles of the utility model.

[0029] Figure 1An application scenario diagram of an acoustic warning device for an energy storage compartment provided by this utility model;

[0030] Figure 2 This is a schematic diagram of an audible warning device for an energy storage compartment, provided in Embodiment 1.

[0031] Figure 3 This is a schematic diagram of an acoustic warning device for an energy storage compartment provided in Embodiment 2;

[0032] Figure 4 This is a schematic diagram of the electrical connection of a sound detector provided in Embodiment 3;

[0033] Figure 5 This is a schematic diagram of an acoustic warning device for an energy storage compartment provided in Embodiment 4;

[0034] Figure 6 This is a schematic diagram of an acoustic warning device for an energy storage compartment provided in Embodiment 5;

[0035] Figure 7 This is a schematic diagram of the shielded wire connection for a sound detector provided in Embodiment Six;

[0036] Figure 8 A schematic diagram of an acoustic warning system for an energy storage compartment provided in Embodiment Nine;

[0037] Figure 9 This is a schematic diagram of a containerized energy storage system provided in Example 10.

[0038] Explanation of reference numerals in the attached figures:

[0039] 201-Sound Detector; 202-Data Acquisition Unit; 203-Control Unit; 204-Communication Module; 205-Battery Stack; 206-Battery Cluster; 207-Monitoring Equipment; 501-Junction Box; 601-Power Supply; 800-Sound Warning System for Energy Storage Compartment; 801-Sound Warning Device for Energy Storage Compartment; 900-Containerized Energy Storage System; 901-Energy Storage Compartment

[0040] The accompanying drawings have illustrated specific embodiments of the present invention, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0041] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses consistent with some aspects of this invention as detailed in the appended claims.

[0042] In existing technologies, containerized energy storage systems include a fire protection system and an energy storage compartment. The energy storage compartment includes at least one battery pack. During use, the batteries in the battery pack may leak gas and potentially experience thermal runaway. When one battery experiences thermal runaway, because the battery packs are in close contact, it can affect the remaining batteries, potentially leading to an explosion. When thermal runaway occurs, maintenance personnel can detect the abnormality through smoke detectors and take fire-fighting measures through the fire protection system.

[0043] Therefore, when a battery in an energy storage compartment experiences thermal runaway, it needs to generate a certain amount of smoke to trigger the smoke alarm so that maintenance personnel can become aware of it. However, by the time a certain amount of smoke is generated, the thermal runaway has already reached its late stage. As a result, maintenance personnel can only become aware of the abnormal situation in the late stage of thermal runaway, which means they cannot be informed in time and thus cannot intervene in time, leading to danger. In some cases, it may even result in a serious explosion or fire.

[0044] To address the shortcomings of existing technologies, this invention, developed through creative research, modifies a containerized energy storage system by adding a sound warning device. This allows maintenance personnel to promptly detect hazards. The sound warning device provided in this solution includes: at least one sound detector, at least one data acquisition unit, a control unit, and a communication module; the energy storage compartment includes at least one battery stack; each battery stack includes at least one battery cluster; at least one corresponding sound detector is installed on the outer surface of each battery cluster; within the same battery stack, the sound detector corresponding to the previous battery cluster is connected to the sound detector corresponding to the next adjacent battery cluster via a communication line; the final battery cluster... The corresponding sound detector is connected to one end of the data acquisition unit via a communication line; the other end of at least one data acquisition unit is connected to the control unit via a network cable; the control unit communicates with the monitoring equipment via a communication module; the sound detector is used to collect sound information of the battery cluster and send the sound information to the corresponding data acquisition unit; the sound information is the sound information generated by the battery cluster in the early stage of thermal runaway; the data acquisition unit is used to summarize and convert it into text information and send the text information to the control unit; the control unit is used to locate the battery cluster that has experienced thermal runaway, obtain thermal runaway anomaly information, and send the thermal runaway anomaly information to the monitoring equipment; the thermal runaway anomaly information includes the number of battery clusters that have experienced thermal runaway and the identifier of the battery clusters that have experienced thermal runaway. In this invention, sound detectors are installed on the outer surface of the battery clusters. These detectors collect sound information from the battery clusters. Therefore, when a battery pack in a cluster experiences thermal runaway, it generates noise, which is collected by the sound detectors and sent to a data acquisition unit. The data acquisition unit summarizes and converts the received sound information into text information, which is then sent to the control unit. The control unit receives the text information, locates the thermally runaway battery pack, and obtains thermal runaway anomaly information. Since the thermal runaway anomaly information includes the number of thermally runaway battery clusters and their identifiers, maintenance personnel can use monitoring equipment to identify which battery clusters or groups experienced thermal runaway. Furthermore, because the sound detectors are directly installed on the outer surface of the battery packs, they can promptly collect the corresponding sound information as soon as a battery pack experiences thermal runaway, thus promptly notifying maintenance personnel of the danger. Additionally, since sound detectors are installed on the outer surface of each battery cluster, they can promptly collect sound information whenever any battery cluster generates noise, further improving timeliness. In this invention, the sound detector is fixedly installed on the outer surface of the battery cluster, so it is in close contact with the battery pack and can collect sound information in a timely manner.

[0045] Figure 1 An application scenario diagram of the sound warning device for an energy storage compartment provided by this utility model. (Example) Figure 1As shown, it includes an energy storage compartment 101, a fire protection system 102, an audible warning device for the energy storage compartment 103, and a monitoring device 104.

[0046] Among them, the energy storage compartment 101, the fire protection system 102, and the sound warning device 103 of the energy storage compartment are located in the containerized energy storage system 100.

[0047] The monitoring equipment 104 is located outside the containerized energy storage system 100.

[0048] like Figure 1 As shown, the energy storage compartment 101 is welded or glued to the sound warning device 103, and the sound warning device 103 is communicatively connected to the monitoring equipment 104.

[0049] It should be noted that after the aforementioned sound warning device 103 issues a warning through the monitoring equipment 104, maintenance personnel can take fire-fighting measures on the energy storage compartment 101 through the fire-fighting system 102.

[0050] In existing scenarios, containerized energy storage systems may include smoke detectors. When smoke fills the air, the smoke detector can be triggered to alert maintenance personnel to an abnormal situation. However, for the smoke detector to trigger an alarm, a certain amount of smoke needs to accumulate in the air, which may indicate that the system is in the late stage of thermal runaway and could potentially explode or catch fire. In this scenario, however, the audible warning device can detect the initial thermal runaway of any battery pack in the energy storage compartment, allowing maintenance personnel to intervene in a timely manner and reduce losses and dangers.

[0051] It should be noted that the energy storage compartment is in a closed, temperature-controlled, and light-free environment, so smoke detectors or other alarm systems may not be able to send an alarm to maintenance personnel immediately.

[0052] The technical solution of this utility model and how it solves the above-mentioned technical problems will be described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of this utility model will now be described with reference to the accompanying drawings.

[0053] Example 1

[0054] Figure 2 This is a schematic diagram of an audible warning device for an energy storage compartment, provided in Embodiment 1. Figure 2 As shown, the sound warning device includes: at least one sound detector 201, at least one data acquisition unit 202, a control unit 203, and a communication module 204. The energy storage compartment includes at least one battery stack 205; the battery stack 205 includes at least one battery cluster 205.

[0055] At least one sound detector 201 is installed on the outer surface of each battery cluster 205.

[0056] In the same battery stack 205, the sound detector 201 corresponding to the previous battery cluster 206 is connected to the sound detector 201 corresponding to the next adjacent battery cluster 206 via a communication line, and the sound detector 201 corresponding to the last battery cluster 206 is connected to one end of the data acquisition unit 202 via a communication line.

[0057] exist Figure 2 The image shows two battery stacks 205, each containing three battery clusters 206: a first battery cluster 206, a second battery cluster 206, and a third battery cluster 206.

[0058] For example, in Figure 2 The diagram shows two battery stacks 205, and battery stacks 205 can be added or removed.

[0059] exist Figure 2 In this process, a sound detector 201 is installed on the outer surface of each battery cluster 206. The sound detector 201 on the first battery cluster 206 is connected to the sound detector 201 of the adjacent next battery cluster 206 (i.e., the second battery cluster 206) via a communication line. Figure 2 In this design, the last battery cluster 206 is the third battery cluster 206. Therefore, after the sound detector 201 corresponding to the second battery cluster 206 is connected to the sound detector 201 corresponding to the third battery cluster 206, the sound detector 201 corresponding to the third battery cluster 206 is communicatively connected to one end of the data acquisition unit 202. In this invention, the other end of at least one data acquisition unit 202 is connected to the control unit 203 via a network cable.

[0060] like Figure 2 In this configuration, the other ends of both data collector 1 (202) and data collector 202 (202) are connected to control unit 203 via network cables. It should be noted that the sound warning device includes a control unit 203 for receiving text messages sent by at least one data collector 202.

[0061] It should be noted that the other end of the control unit 203 may include at least one interface, so that each interface can be communicatively connected to the corresponding data acquisition unit 202. For example, suppose there are two data acquisition units 202, and there are two interfaces on the other end of the control unit 203, namely the first interface and the second interface. Data acquisition unit 1# 201 is connected to the control unit 203 through the first interface, and data acquisition unit 2# is connected to the control unit 203 through the second interface.

[0062] The sound detector 201 is used to collect the sound information of the battery cluster 206 and send the sound information to the corresponding data acquisition unit 202; the sound information is the sound information generated by the battery cluster 206 in the early stage of thermal runaway.

[0063] Among them, sound information refers to the sound characteristic information generated when the battery cluster experiences thermal runaway.

[0064] It should be noted that the battery cluster 206 will generate a certain amount of noise during thermal runaway, which can be collected by the sound detector 201.

[0065] The data acquisition unit 202 is used to summarize the received sound information and convert it into text information, and then send the text information to the control unit 203.

[0066] It should be noted that each data acquisition unit 202 can receive sound information sent by at least one sound detector 201 corresponding to the battery stack, thereby the data acquisition unit 202 can collect and summarize at least one sound information and convert at least one sound information into text information. In this embodiment, the control unit 203 is used to receive the text information and locate the battery cluster 206 that has experienced thermal runaway, so as to obtain thermal runaway anomaly information, and send the thermal runaway anomaly information to the monitoring equipment; the thermal runaway anomaly information includes the number of thermal runaway battery clusters 206 and the identifier of the thermal runaway battery cluster 206.

[0067] Among them, thermal runaway anomaly information refers to the basic information about the thermal runaway anomaly of the battery cluster.

[0068] Among them, the thermal runaway battery cluster identifier is a unique identification number for battery clusters, which can be used to identify battery clusters.

[0069] In one embodiment, the control unit 203 may include a counter that can count the received text information to obtain the number of thermally runaway battery clusters.

[0070] For example, if the control unit 203 receives two text messages, the control unit 203 counts and obtains that the number of thermally runaway battery clusters is 2.

[0071] For example, the control unit 203 can locate the thermal runaway battery cluster identifier from the text information, generate or obtain thermal runaway abnormal information, and the control unit 203 sends the thermal runaway abnormal information to the monitoring device 207.

[0072] The control unit 203 is connected to the monitoring device 207 via the communication module 204.

[0073] It should be noted that the control unit 203 can be connected to the monitoring device 207 via a network cable through the communication module 204, so that the control unit 203 can send thermal runaway abnormal information to the monitoring device 207.

[0074] It should be noted that the network cable in this invention is mainly used for data transmission in network communication applications such as computers, routers, and switches; the RS485 communication cable is a standard interface for communication in industrial field equipment, used to transmit control signals. The monitoring equipment can be devices such as computers.

[0075] RS485 communication lines are mainly used in industrial control, featuring high-speed transmission, anti-interference, and long transmission distance. Network cables, on the other hand, are important communication tools for connecting various network devices and are suitable for various scenarios in local area networks.

[0076] This invention provides an acoustic warning device for an energy storage compartment, comprising: an acoustic detector installed on the outer surface of a battery cluster; this allows the sound generated by the battery cluster in the early stages of thermal runaway to be collected by the acoustic detector; a data acquisition unit then summarizes and converts the acoustic information into text information, which is sent to a control unit; the control unit receives the text information, locates the battery cluster experiencing thermal runaway, and obtains thermal runaway anomaly information. Because the acoustic detector is directly and fixedly installed on the outer surface of the battery cluster, it is in close contact with the battery cluster, thus allowing the acoustic detector to collect data in the early stages of thermal runaway. The system receives sound information, enabling timely acquisition of the number of battery clusters experiencing thermal runaway. In existing technologies, alarms are only triggered by smoke detectors and other devices when the battery clusters are in the late stages of thermal runaway, by which time danger may have already occurred. Therefore, this invention improves timeliness. The thermal runaway anomaly information also includes the number of battery clusters experiencing thermal runaway and their identifiers. Sending this information to monitoring equipment facilitates notification of maintenance personnel, allowing them to promptly recognize the anomaly and take appropriate countermeasures. Furthermore, in this invention, sound detectors are installed on the outer surface of each battery cluster, resulting in more accurate and timely collection of sound information, further enhancing timeliness.

[0077] Example 2

[0078] Figure 3 This is a schematic diagram of an audible warning device for an energy storage compartment provided in Embodiment 2. The battery cluster 206 includes N battery packs 301; N is greater than or equal to 1.

[0079] Each battery pack 301 has a corresponding sound detector 201 installed on its outer surface.

[0080] It should be noted that the battery pack 301 may include at least one battery, which may be a lithium-ion battery.

[0081] It should be noted that when a battery experiences thermal runaway, it will be accompanied by a certain amount of noise. For example, noise caused by gas and / or liquid leakage inside the battery, noise caused by the swelling of the battery cells, noise caused by overcharging, over-discharging, or overheating of the cells causing the separator to rupture, noise caused by internal short circuits of the cells resulting in deformation or rupture, or noise caused by other situations, which are not limited here.

[0082] It should be noted that thermal runaway of the battery can also lead to battery ejection. Battery ejection is mainly due to air jets. Therefore, in this embodiment, the sound detector 201 can collect the noise generated when the air jets.

[0083] It should be noted that in this embodiment, once the battery generates noise, the sound information can be easily collected by the nearest sound detector 201.

[0084] For example, in Figure 3 In the diagram, each battery pack 301 shows a sound detector 201.

[0085] In one embodiment, a sound detector 201 may be added to the outer surface of the battery pack 301, or multiple battery packs 301 may share a single sound detector 201. For example, two to nine sound detectors 201 may be deployed on each battery cluster 206, with some battery packs 301 sharing a single sound detector 201.

[0086] In one embodiment, the sound detector 201 may be mounted on the top and / or left and right sides of the battery pack 301.

[0087] In one approach, the number of sound detectors 201 mounted on the outer surface of the battery pack 301 can be determined depending on the specific circumstances.

[0088] It should be noted that each battery cluster 206 includes the same number of battery packs 301. Figure 3 In this configuration, each battery cluster 206 includes two battery packs 301, namely battery pack A and battery pack B.

[0089] It should be noted that the number of battery clusters 206 included in each battery stack 205 may be the same or different, and there is no restriction here.

[0090] In this embodiment, within the same battery stack 205, the sound detector 201 corresponding to the nth battery pack 301 in the previous battery cluster 206 is connected to the sound detector 201 corresponding to the nth battery pack 301 in the adjacent next battery cluster 206 via a communication line, and the sound detector 201 corresponding to the nth battery pack 301 in the last battery cluster 206 is connected to one end of the data acquisition unit 202 via a communication line; where n≤N.

[0091] For example, inFigure 3 The battery cluster 206 includes two battery stacks 205, namely the first battery stack 205 and the second battery stack 205. Each battery cluster 206 includes two battery packs 301, namely battery pack A and battery pack B. A sound detector 201 is fixedly installed on the outer surface of each battery pack 301.

[0092] like Figure 3 In the first battery cluster 206, the sound detector 201 corresponding to the first battery pack A is connected to the sound detector 201 corresponding to the second battery pack A in the next adjacent battery cluster 206 (i.e., the second battery cluster 206) via a communication line. Similarly, the sound detector 201 corresponding to the second battery pack A in the second battery cluster 206 is connected to the sound detector 201 corresponding to the third battery pack A in the next adjacent battery cluster 206 (i.e., the third battery cluster 206) via a communication line. If the actual battery stack 205 includes other battery clusters 206, it continues to communicate with the sound detector 201 corresponding to the battery pack 301 in the next adjacent battery cluster 206. Figure 3 In the middle, the last battery cluster 206 is the third battery cluster 206, in which the sound detector 201 and the data acquisition unit 202 are corresponding to the third battery pack A in the third battery cluster 206.

[0093] It should be noted that, following the same connection method, the sound detector 201 corresponding to the first battery pack B in the first battery cluster 206 is connected to the sound detector 201 corresponding to the second battery pack B in the next adjacent battery cluster 206 (i.e., the second battery cluster 206) via a communication line. Similarly, the sound detector 201 corresponding to the second battery pack B in the second battery cluster 206 is connected to the sound detector 201 corresponding to the third battery pack B in the next adjacent battery cluster 206 (i.e., the third battery cluster 206) via a communication line. If, in the actual scenario, the battery stack 205 also includes other battery clusters 206, then it continues to be connected to the sound detector 201 corresponding to the battery pack 301 in the next adjacent battery cluster 206 via a communication line. Figure 3 In the middle, the last battery cluster 206 is the third battery cluster 206, in which the sound detector 201 and the data acquisition unit 202 are corresponding to the third battery pack B in the third battery cluster 206.

[0094] In one embodiment, the communication lines can be two RS 485 communication lines.

[0095] It should be noted that in this utility model, the number of data collectors 202 is the same as the number of battery stacks 205, with one data collector 202 corresponding to one battery stack 205.

[0096] It should be noted that there is a one-to-one correspondence between the data acquisition unit 202 and the battery stack 205.Figure 3 The diagram shows two battery stacks 205, which correspond to two data acquisition units 202, namely data acquisition unit 1# 202 and data acquisition unit 2# 202.

[0097] It should be noted that the sound detectors 201 fixedly installed on the outer surface of each battery pack 301 are known. The sound information can carry the identifier of the sound detector 201 that collected the sound information, and the text information will also carry the identifier of the sound detector 201 that collected the sound information. The control unit 203 locates the battery pack 301 to which the sound detector 201 belongs.

[0098] It should be noted that, in this embodiment, the sound information can specifically refer to the sound information generated by the battery pack 301 in the battery cluster 206 during the initial stage of thermal runaway.

[0099] It should be noted that, in this embodiment, the number of thermally runaway battery clusters can be specifically the number of thermally runaway battery packs, and the identifier of the thermally runaway battery clusters can be specifically the identifier of the thermally runaway battery packs.

[0100] This utility model provides an acoustic warning device for an energy storage compartment, comprising: a battery cluster including N battery packs; N is greater than or equal to 1; a corresponding acoustic detector is installed on the outer surface of each battery pack; in the same battery stack, the acoustic detector corresponding to the nth battery pack in the previous battery cluster is connected to the acoustic detector corresponding to the nth battery pack in the next adjacent battery cluster via a communication line, and the acoustic detector corresponding to the nth battery pack in the last battery cluster is connected to one end of a data acquisition device via a communication line; n≤N. In this invention, sound detectors are installed on the outer surface of the battery pack. This allows the sound information generated by the battery pack in the early stages of thermal runaway to be collected by the sound detectors. Since the sound detectors are directly and fixedly installed on the outer surface of the battery pack, they are in close contact with the battery pack. Therefore, when thermal runaway occurs, the sound detectors can collect sound information in the early stages of thermal runaway, enabling timely detection. In existing technologies, alarms are only triggered by smoke detectors and other devices in the late stages of thermal runaway, by which time danger may have already occurred. This invention improves timeliness. Furthermore, in this invention, sound detectors are installed on the outer surface of each battery pack, resulting in more accurate and timely sound information collection, further improving timeliness. Additionally, the communication connection method for the sound detectors is a daisy-chain connection, resulting in a simple wiring configuration.

[0101] Example 3

[0102] This embodiment is a further refinement of any of the above embodiments. In this embodiment, in the same battery stack 205, the sound detector 201 corresponding to the nth battery pack 301 in the previous battery cluster 206 is connected to the sound detector 201 corresponding to the nth battery pack 301 in the adjacent next battery cluster 206 through a power supply line. The sound detector 201 corresponding to the nth battery pack 301 in the last battery cluster 206 is connected to the control unit 203 through a power supply line.

[0103] Therefore, in this embodiment, in the same battery stack 205, the sound detector 201 corresponding to the nth battery pack 301 in each battery cluster 206 can be connected by a power supply line in a daisy-chain manner.

[0104] In one embodiment, the communication lines can be two DC 24V power supply lines.

[0105] Figure 4 This is a schematic diagram of the electrical connection of a sound detector provided in Embodiment 3. Figure 4 As shown, exemplarily, in Figure 4 The battery cluster 206 includes two battery stacks 205, namely the first battery stack 205 and the second battery stack 205. Each battery cluster 206 includes two battery packs 301, namely battery pack A and battery pack B. A sound detector 201 is fixedly installed on the outer surface of each battery pack 301.

[0106] like Figure 4 As shown, the sound detector 201 corresponding to the first battery pack A in the first battery cluster 206 is connected to the sound detector 201 corresponding to the second battery pack A in the next adjacent battery cluster 206 (i.e., the second battery cluster 206) via a power supply line. The sound detector 201 corresponding to the second battery pack A in the second battery cluster 206 is connected to the sound detector 201 corresponding to the third battery pack A in the next adjacent battery cluster 206 (i.e., the third battery cluster 206) via a power supply line. If the actual battery stack 205 includes other battery clusters 206, then it continues to be connected to the sound detector 201 corresponding to the battery pack 301 in the next adjacent battery cluster 206 via a power supply line. Figure 2 In the middle, the last battery cluster 206 is the third battery cluster 206, in which the sound detector 201 and the data acquisition unit 202 are corresponding to the third battery pack A in the third battery cluster 206.

[0107] It should be noted that, following the same connection method, the sound detector 201 corresponding to the first battery pack B in the first battery cluster 206 is connected to the sound detector 201 corresponding to the second battery pack B in the next adjacent battery cluster 206 (i.e., the second battery cluster 206) via a power supply line. Similarly, the sound detector 201 corresponding to the second battery pack B in the second battery cluster 206 is connected to the sound detector 201 corresponding to the third battery pack B in the next adjacent battery cluster 206 (i.e., the third battery cluster 206) via a power supply line. If, in the actual scenario, the battery stack 205 also includes other battery clusters 206, then it continues to be connected to the sound detector 201 corresponding to the battery pack 301 in the next adjacent battery cluster 206 via a power supply line. Figure 2 In the middle, the last battery cluster 206 is the third battery cluster 206, in which the sound detector 201 and the data acquisition unit 202 are corresponding to the third battery pack B in the third battery cluster 206.

[0108] This invention provides an acoustic warning device for an energy storage compartment. In the same battery stack, the acoustic detector corresponding to the nth battery pack in the previous battery cluster is connected to the acoustic detector corresponding to the nth battery pack in the next adjacent battery cluster via a power supply line. The acoustic detector corresponding to the nth battery pack in the last battery cluster is connected to a control unit via a power supply line. This allows for electrical connection of the acoustic detectors corresponding to each battery pack in a daisy-chain configuration, resulting in a simpler wiring design.

[0109] Example 4

[0110] This embodiment is a further refinement of any of the above embodiments. Figure 5 This is a schematic diagram of an acoustic warning device for an energy storage compartment provided in Embodiment 4. Figure 5 As shown, the sound warning device also includes: a junction box 501; one end of the junction box 501 is connected to the sound detectors 201 corresponding to all battery packs 301 in the last battery cluster 206 via a power supply line, and the other end of the junction box 501 is connected to the control unit 203 via a power supply line.

[0111] Junction box 501 is used to aggregate and output lines.

[0112] Figure 5 In the two battery stacks 205, the last battery cluster 206 includes all battery packs 301, namely the third battery pack A and the third battery pack B. The sound detectors corresponding to the two battery packs 301 are connected to one end of the junction box 501 through a power supply line, while the other end of the junction box 501 is connected to the control unit 203 through a power supply line.

[0113] like Figure 5 In the middle, the data acquisition unit 202 is connected to the control unit 203 for power supply through the junction box 501.

[0114] It should be noted that, in this embodiment, one end of the junction box 501 may include at least one interface, so that the sound detectors 201 corresponding to the two battery packs 301 in the third battery cluster 206 can be aggregated into the junction box 501 through the corresponding interface.

[0115] like Figure 5 As shown, junction box 501 connects the power supply lines of the two sound detectors 201 to the control unit 203 via the power supply line from the other end.

[0116] This utility model provides an acoustic warning device for an energy storage compartment, comprising: a junction box; one end of the junction box is connected to the acoustic detectors corresponding to all battery packs in the final battery cluster via a power supply line, and the other end of the junction box is connected to the control unit via a power supply line. In this embodiment, the junction box allows for the aggregation and output of power supplies, thus simplifying the wiring.

[0117] Example 5

[0118] This embodiment is a further refinement of any of the above embodiments. Figure 6 This is a schematic diagram of an acoustic warning device for an energy storage compartment provided in Embodiment 5. Figure 6 As shown, the control unit 203 is electrically connected to the power supply 601 via a power cord.

[0119] Power supply 601 provides power to the sound warning device in the energy storage compartment.

[0120] In one embodiment, the power cord can be an AC220V power cord. It should be noted that the power supply 601 in this embodiment provides power to the sound detector 201, the control unit 203, and the data acquisition unit 202 to ensure the normal operation of each component.

[0121] It should be noted that in this utility model, the control unit 203 is connected via an AC220V power supply line, which then switches to a DC 24V power supply line to provide power to the sound detector 201 and the data acquisition unit 202.

[0122] This utility model provides an audible warning device for an energy storage compartment, including a control unit that is electrically connected to a power source via a power cord, thereby providing power to the audible warning device.

[0123] Example 6

[0124] This embodiment is a further refinement of any of the above embodiments. Figure 7 This is a schematic diagram of a shielded wire connection for a sound detector provided in Embodiment Six. Figure 7As shown, in the same battery stack 205, the sound detector 201 corresponding to the nth battery pack 301 in the previous battery cluster 206 is connected to the sound detector 201 corresponding to the nth battery pack 301 in the next adjacent battery cluster 206 through a shielded wire. The shielded wires of the sound detectors 201 corresponding to all battery packs 301 in the last battery cluster 206 are summarized to form a summarized shielded wire, and then connected to another end of the data acquisition unit 202 through the summarized shielded wire.

[0125] Therefore, in this embodiment, the sound detectors 201 corresponding to each battery pack 301 can be connected in a daisy-chain manner via power supply lines.

[0126] like Figure 7 As shown, in the first battery stack 205, the sound detector corresponding to the first battery pack A in the first battery cluster 206 is connected to the sound detector 201 corresponding to the second battery pack A in the next adjacent battery cluster 206 (i.e., the second battery cluster 206) via a shielded wire. The sound detector 201 corresponding to the second battery pack A in the second battery cluster 206 is connected to the sound detector 201 corresponding to the third battery pack A in the next adjacent battery cluster 206 (i.e., the third battery cluster 206) via a shielded wire. If the actual battery stack 205 includes other battery clusters 206, then the sound detector 201 corresponding to the battery pack 301 in the next adjacent battery cluster 206 continues to be connected via a shielded wire. Figure 2 In the middle, the last battery cluster 206 is the third battery cluster 206. Among them, all battery packs 301 in the third battery cluster 206 are the third battery pack A and the third battery pack B. The shielding wires of the sound detectors 201 corresponding to the above two battery packs 301 are combined to form a combined shielding wire, and then the combined shielding wire is connected to another end of the data acquisition unit 202.

[0127] It should be noted that, following the same connection method, in any battery stack 205, the sound detector corresponding to the first battery pack B in the first battery cluster 206 is connected to the sound detector 201 corresponding to the second battery pack B in the next adjacent battery cluster 206 (i.e., the second battery cluster 206) via a shielded wire. The sound detector 201 corresponding to the second battery pack B in the second battery cluster 206 is connected to the sound detector 201 corresponding to the third battery pack B in the next adjacent battery cluster 206 (i.e., the third battery cluster 206) via a shielded wire. If, in the actual scenario, the battery stack 205 also includes other battery clusters 206, then it continues to be connected to the sound detector 201 corresponding to the battery pack 301 in the next adjacent battery cluster 206 via a shielded wire.

[0128] It should be noted that the shielded wire and the communication wire are wrapped together when connecting between the sound detectors 201. Until the wrapping is connected to the last sound detector 201, the shielded wires and communication wires of the sound detectors 201 corresponding to all battery packs 301 in the last battery cluster 206 are separated and combined to form a combined shielded wire. The combined shielded wire is connected to the grounding terminal of the data acquisition unit 202 to avoid possible electromagnetic interference.

[0129] Specifically, in the same battery stack 205, the sound detector 201 corresponding to the nth battery pack 301 in the previous battery cluster 206 is connected to the sound detector 201 corresponding to the nth battery pack 301 in the next adjacent battery cluster 206 through a shielded wire. The shielded wires of the sound detectors 201 corresponding to all battery packs 301 in the last battery cluster 206 are independently separated from the communication line and aggregated to form an aggregated shielded wire, which is then connected to another end of the data acquisition unit 202.

[0130] The purpose of the shielding cable is to prevent interference that may occur between communication lines or in other places.

[0131] This invention provides an acoustic warning device for an energy storage compartment, comprising: in the same battery stack, a sound detector corresponding to the nth battery pack in the previous battery cluster is connected to the sound detector corresponding to the nth battery pack in the next adjacent battery cluster via a shielded wire; the shielded wires of all the sound detectors corresponding to the battery packs in the final battery cluster are combined to form a combined shielded wire, which is then connected to another end of a data acquisition unit. This allows for electrical connection of the sound detectors corresponding to each battery pack in a daisy-chain configuration, resulting in a simpler wiring system. Furthermore, the addition of a shielded wire in this invention prevents interference that may occur between communication lines or elsewhere.

[0132] Example 7

[0133] This embodiment is a further refinement of any of the above embodiments. The sound detector 201 is fixed to the outer surface of the battery pack 301 by an adhesive, magnetic sticker or bolt.

[0134] It should be noted that, in this embodiment, when bolts are used for fixing, the sound detector 201 can also be fixed to the outer surface of the battery pack 301 with the help of a fixing bracket.

[0135] This invention provides an acoustic warning device for an energy storage compartment, which allows the acoustic detector to be easily and conveniently fixed to the outer surface of the battery pack.

[0136] Example 8

[0137] This embodiment is a further refinement of any of the above embodiments. This embodiment provides an audible warning device for an energy storage compartment, wherein the data acquisition unit 202 and the junction box 501 are fixed to the top of the combiner cabinet by bolts; a power supply 601 is installed inside the combiner cabinet.

[0138] The combiner cabinet is a device used for current collection and distribution in the audible warning system, capable of inversion, grid connection, or direct power supply. It serves as an intermediate device connecting the high-voltage box and the energy storage converter in a containerized energy storage system, and consists of a battery system-level disconnect switch, fuses, a BAMU, and a power supply. It can also support AC220V power supply for control units or other equipment.

[0139] In this embodiment, AC220V is taken from the combiner cabinet to power the control unit 203, and the control unit 203 then converts DC24V to power the sound detector 201 and the data acquisition unit 202.

[0140] In this invention, the combiner cabinet is located in the energy storage compartment.

[0141] This utility model provides an audible warning device for an energy storage compartment, comprising: a data acquisition unit and a junction box fixed to the top of a combiner cabinet by bolts; a power supply is installed inside the combiner cabinet. In this embodiment, fixing the data acquisition unit and the junction box to the top of the combiner cabinet facilitates the aggregation of lines.

[0142] In this embodiment, the control unit 203 is fixedly mounted on the wall of the energy storage compartment by bolts.

[0143] It should be noted that fixing the control unit 203 to the wall of the energy storage compartment can save space.

[0144] In one approach, the control unit 203 can be placed 0.5 to 1 meter above the ground for easy control or operation.

[0145] It should be noted that the control unit 203 can be fixed to the wall of the energy storage compartment near the bottom for easy replacement, debugging and network cable connection.

[0146] This utility model provides an audible warning device for an energy storage compartment, comprising: a control unit that is fixedly mounted on the wall of the energy storage compartment by bolts, thereby saving space in the containerized energy storage system.

[0147] Example 9

[0148] This utility model includes an acoustic warning system for an energy storage compartment. Figure 8This is a schematic diagram of an energy storage compartment sound warning system provided in Embodiment 9. The energy storage compartment sound warning system 800 includes the aforementioned energy storage compartment sound warning device 801 and monitoring equipment 207. The control unit 203 in the energy storage compartment sound warning device 801 is communicatively connected to the monitoring equipment 207 through the communication module 204. The monitoring equipment 207 is used to receive and display thermal runaway abnormal information.

[0149] Among them, the monitoring equipment 207 can display the number of battery packs that have thermal runaway, thereby notifying the maintenance personnel so that they can take appropriate measures.

[0150] Example 10

[0151] This utility model includes a containerized energy storage system. Figure 9 This is a schematic diagram of a containerized energy storage system provided in Embodiment 10. Figure 9 As shown, the containerized energy storage system 900 includes the aforementioned energy storage compartment sound warning device 801 and the energy storage compartment 901; at least one sound detector 201 in the sound warning device 801 is installed on the outer surface of each battery pack 301 in the energy storage compartment 901.

[0152] It should be noted that, in Figures 2 to 8 In the diagram, black lines represent power supply lines, green lines represent shielding lines, orange lines represent communication lines, blue lines represent network cables, and purple lines represent power cords.

[0153] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0154] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A sound warning device for an energy storage compartment, characterized in that The sound early warning device comprises at least one sound detector, at least one data collector, a control unit and a communication module; the energy storage cabin comprises at least one battery stack; each battery stack comprises at least one battery cluster; Each battery cluster is externally provided with at least one corresponding sound detector; In the same battery stack, the sound detector corresponding to the last battery cluster is connected to one end of the data collector through a communication line. The other end of the data collector is connected to the control unit through a network cable. The control unit is connected to a monitoring device through a communication module. The sound detector is used to collect sound information of the battery cluster and send the sound information to the corresponding data collector; the sound information is sound information generated by the battery cluster in the initial stage of thermal runaway. The data collector is used to aggregate and convert the sound information into text information and send the text information to the control unit. The control unit is used to locate the battery cluster with thermal runaway to obtain thermal runaway abnormal information and send the thermal runaway abnormal information to the monitoring device; the battery cluster identification thermal runaway abnormal information comprises the number of battery clusters with thermal runaway and the identification of the battery clusters with thermal runaway.

2. The sound warning device of the energy storage cabin according to claim 1, characterized in that, Each battery cluster comprises N battery packs; N is greater than or equal to 1. Each battery pack is externally provided with a corresponding sound detector. In the same battery stack, the sound detector corresponding to the last battery cluster is connected to one end of the data collector through a communication line. In the same battery stack, the sound detector corresponding to the last battery cluster is connected to one end of the data collector through a communication line.

3. The sound warning device of the energy storage cabin according to claim 2, characterized in that, Further comprising: A junction box; One end of the junction box is connected to the sound detectors of all battery packs in the last battery cluster through a power supply line, and the other end of the junction box is connected to the control unit through a power supply line.

4. The sound warning device of the energy storage cabin according to claim 1, characterized in that, The control unit is electrically connected to a power supply through a power supply line. The power supply provides power for the sound early warning device of the energy storage cabin.

5. The sound warning device of the energy storage cabin according to claim 2, characterized in that, In the same battery stack, the sound detector corresponding to the last battery cluster is connected to one end of the data collector through a communication line.

6. The sound warning device of the energy storage cabin according to claim 1, characterized in that, The sound detector is fixed on the outer surface of the battery pack by one of an adhesive, a magnetic sticker or a bolt.

7. The energy storage cabin sound early warning device of claim 1, wherein The data collector and the terminal box are fixed on the top of the busbar cabinet by bolts; and a power supply is arranged in the busbar cabinet.

8. The sound warning device of the energy storage cabin according to claim 1, characterized in that, The control unit is fixedly installed on the wall surface of the energy storage cabin by bolts.

9. A sound warning system for an energy storage bay, characterized in that The sound warning device of the energy storage cabin and the monitoring equipment in any one of claims 1 to 8, the control unit in the sound warning device of the energy storage cabin is connected with the monitoring equipment through a communication module, and the monitoring equipment is used for receiving and displaying thermal runaway abnormal information.

10. A containerized energy storage system, characterized by, The sound warning device of the energy storage cabin and the energy storage cabin in any one of claims 1 to 8, and at least one sound detector in the sound warning device is installed on the outer surface of each battery pack in the energy storage cabin.

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