Backup power supply cabinet with active fire-fighting device

Abstract

The utility model discloses a back-up power supply cabinet with an active fire-fighting device. The back-up power supply cabinet comprises a cabinet body, a battery pack, a detector, a single monitoring unit, a battery management system and a non-pressure-storage type perfluorohexanone fire-extinguishing device, the battery packs are detachably fixed in the cabinet body, and each battery pack is provided with a puncture valve and a pack level nozzle; each battery pack is provided with one group of detectors; each battery pack is provided with one single monitoring unit; the detectors, the single monitoring units and the puncture valves are all connected with the battery management system through communication wire harnesses; the non-pressure-storage type perfluorohexanone fire extinguishing device is also connected with the battery management system through the communication wire harness, and an outlet of the fire extinguishing device is connected to a package-level spray head through a high-pressure hose and a quick connection pipeline. Therefore, when thermal runaway of an unattended working module and a battery pack occurs, the power supply cabinet can automatically judge abnormity, actively execute fire-fighting actions and realize pack-level protection, and provides stable and reliable backup guarantee for daily operation and use of the power supply cabinet.

Description

Technical Field

[0001] The utility model relates to the technical field of battery safety, in particular to a backup power supply cabinet with an active fire-fighting device. Background Art

[0002] In order to ensure the safe and stable operation of industrial power supply, the main power supply cabinet is often equipped with a backup power supply cabinet to maintain uninterrupted power supply operation when the main power supply cabinet fails. The main power supply cabinet is generally equipped with a complete fire alarm device, and accordingly, the cost of the main power supply cabinet has also risen a lot. If the backup power supply cabinet is also equipped with the same fire alarm device as the main power supply cabinet, it is easy to cause the cost of the entire set of equipment to be too high and lose the market competitive advantage. In addition, the frequency of use of the backup power supply cabinet is much lower than that of the main power supply cabinet, and the fire hazards it faces are also greatly reduced. There is no strong need to configure the best fire alarm device.

[0003] Therefore, there is an urgent need in the art for a backup power supply cabinet that, while ensuring safe and stable operation, does not bring unnecessary manpower, material resources and other cost pressures to the entire machine. Summary of the invention

[0004] In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is: how to configure a fire warning device with a simple structure, timely response and reasonable cost for a backup power supply cabinet.

[0005] In order to solve the above technical problems, the utility model provides a backup power supply cabinet with an active fire-fighting device, including: a cabinet, a battery pack, a detector, a cell monitoring unit (Cell monitor Unit, hereinafter referred to as CMU), a battery management system (Battery Management System, hereinafter referred to as BMS) and a non-pressure storage type perfluorohexanone fire extinguishing device; wherein,

[0006] There are one or more battery packs, all of which can be detachably fixed on the battery rack in the cabinet, and each battery pack is provided with a puncture valve and a pack-level spray nozzle;

[0007] The detectors are in multiple groups, each battery pack is equipped with one group, and each group consists of one or more detectors;

[0008] There are one or more single-cell monitoring units, one for each battery pack;

[0009] The battery management system is arranged in the cabinet, the detectors are connected to the battery management system through communication harnesses, and the detection data are uploaded in real time; the single-cell monitoring units are also connected to the battery management system through communication harnesses, and the monitoring data are uploaded in real time; the puncture valve is also connected to the battery management system through communication harnesses;

[0010] The non-pressure storage type perfluorohexanone fire extinguishing device is connected to the battery management system through a communication harness, and the outlet of the fire extinguishing device is connected to the package-level nozzle through a high-pressure hose and a quick-connect line.

[0011] On the basis of the above technical solution, the present invention can also be improved as follows.

[0012] Preferably, the puncture valve can open a gap in the outer shell of the battery pack by blasting.

[0013] Preferably, the detector is one or a combination of a CO detector, a VOC gas detector, a pressure detector, and a temperature detector.

[0014] Preferably, the cell monitoring unit measures the voltage, current and temperature of the battery pack.

[0015] Preferably, it also includes a cabinet door hinged to the cabinet body.

[0016] Compared with the prior art, the utility model can produce the following beneficial technical effects:

[0017] The utility model uses the battery pack as the protection unit, arranges detectors and CMUs inside the battery pack to detect parameters such as the concentration of combustible gas, voltage and temperature, and each battery pack is provided with a puncture valve and a pack-level nozzle; in addition, a non-pressure storage perfluorohexanone fire extinguishing device is also provided in the power cabinet, and the outlet of the fire extinguishing device is connected to the pack-level nozzle through a high-pressure hose and a quick-connect line. Therefore, once the battery pack has a thermal runaway, the BMS obtains the signal sent by the detector or CMU, opens the corresponding puncture valve, and the perfluorohexanone fire extinguishing agent directly acts on the out-of-control battery pack through the high-pressure hose, quick-connect line and pack-level nozzle; the utility model can be used for unattended working modules to realize active fire protection at the PACK level, providing stable and reliable backup protection for the daily operation and use of the power cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of a backup power supply cabinet with an active fire-fighting device of the utility model;

[0020] In the accompanying drawings, the component names represented by the reference numerals are listed as follows:

[0021] 1: Cabinet body, 2: Cabinet door, 3: Battery pack, 31: Piercing valve, 32: Package-level nozzle, 4: Detector, 5: CMU, 6: BMS, 7: Non-pressure storage perfluorohexanone fire extinguishing device. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Please refer to Figure 1 As shown, it is a schematic diagram of the structure of a backup power supply cabinet with an active fire-fighting device of the utility model; the backup power supply cabinet includes: a cabinet body 1, a cabinet door 2, a battery pack 3, a detector 4, a CMU 5, a BMS 6, and a non-pressure storage type perfluorohexanone fire extinguishing device 7, wherein,

[0024] The cabinet door 2 is hinged on the cabinet body 1;

[0025] The battery pack 3 is one or more, and three are shown in the figure. In practice, the required number can be set according to the needs of the user. One or more battery packs can be detachably fixed to the battery rack in the cabinet 1; each battery pack is provided with a puncture valve 31 and a pack-level nozzle 32, and the connection and use of the puncture valve 31 and the pack-level nozzle 32 will be described in detail later;

[0026] The detectors 4 are multiple groups, each battery pack 3 is equipped with one group, each group is one or more, and can be one or a combination of CO detectors, VOC gas detectors, pressure detectors, and temperature detectors, but not limited thereto;

[0027] There are multiple CMUs 5, one for each battery pack 3, for measuring parameters such as voltage, current, and temperature of the battery pack;

[0028] The BMS 6 is arranged in the cabinet 1 and can be regarded as the "brain" of the power cabinet; the detectors 4 are connected to the BMS 6 through communication harnesses to upload detection data in real time; the CMU 5 is also connected to the BMS 6 through communication harnesses to upload monitoring data in real time; the puncture valve 31 is also connected to the BMS 6 through communication harnesses;

[0029] The non-pressure storage type perfluorohexanone fire extinguishing device 7 is connected to the BMS 6 via a communication harness, and its outlet is connected to the package-level sprinkler 32 via a high-pressure hose and a quick-connect line;

[0030] Therefore, when the detector detects abnormal gas in the cabinet, or the single-cell monitoring unit monitors abnormal parameters such as voltage, current, and temperature, the battery management system will perform active fire protection;

[0031] The active fire protection is specifically:

[0032] 1) Once a battery pack has thermal runaway, the BMS obtains the signal sent by the detector or CMU on the battery pack, and then opens the corresponding puncture valve to blast a hole in the battery pack shell to quickly release the internal flame and gas;

[0033] 2) At the same time, the BMS turns on the non-pressure storage type perfluorohexanone fire extinguishing device. The perfluorohexanone fire extinguishing agent in the device passes through the high-pressure hose, quick-release line and pack-level nozzle, and finally directly acts on the thermal runaway battery pack to achieve active pack-level protection.

[0034] Therefore, the utility model can be used for unattended working modules. When thermal runaway occurs in the battery pack, the BMS automatically determines the abnormality, actively executes fire-fighting actions, realizes active pack-level protection, and provides stable and reliable backup guarantee for the daily operation and use of the power cabinet.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A backup power supply cabinet with an active fire-fighting device, characterized in that: include: Cabinet, battery pack, detector, single-cell monitoring unit, battery management system and non-pressure storage perfluorohexanone fire extinguishing device; among them, There are one or more battery packs, all of which can be detachably fixed on the battery rack in the cabinet, and each battery pack is provided with a puncture valve and a pack-level spray nozzle; The detectors are in multiple groups, each battery pack is equipped with one group, and each group consists of one or more detectors; There are one or more single-cell monitoring units, one for each battery pack; The battery management system is arranged in the cabinet, the detectors are connected to the battery management system through communication harnesses, and the detection data are uploaded in real time; the single-cell monitoring units are also connected to the battery management system through communication harnesses, and the monitoring data are uploaded in real time; the puncture valve is also connected to the battery management system through communication harnesses; The non-pressure storage type perfluorohexanone fire extinguishing device is connected to the battery management system through a communication harness, and the outlet of the fire extinguishing device is connected to the package-level nozzle through a high-pressure hose and a quick-connect line.

2. The backup power supply cabinet with active fire fighting device according to claim 1, characterized in that: The puncture valve can open a gap in the outer shell of the battery pack by blasting.

3. The backup power supply cabinet with active fire fighting device according to claim 1, characterized in that: The detector is one or a combination of a CO detector, a VOC gas detector, a pressure detector, and a temperature detector.

4. The backup power supply cabinet with active fire fighting device according to claim 1, characterized in that: The cell monitoring unit measures voltage, current, and temperature of the battery pack.

5. The backup power supply cabinet with active fire fighting device according to any one of claims 1 to 4, characterized in that: It also includes a cabinet door, which is hinged on the cabinet body.

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