Industrial and commercial integrated energy storage cabinet based on voiceprint vibration detection

Abstract

The utility model discloses an industrial and commercial integrated energy storage cabinet based on voiceprint vibration detection, which comprises a cabinet body, the cabinet body is internally divided into an upper layer cabinet body, a middle layer cabinet body and a lower layer cabinet body, the upper layer cabinet body is internally provided with a perfluorohexanone medicament tank and a liquid cooling machine, the middle layer cabinet body is internally provided with a plurality of groups of battery modules, and the lower layer cabinet body is internally provided with a plurality of groups of battery modules. The energy storage system is low in cost, short in detection period, long in service life, simple in installation, and capable of guaranteeing safe operation of the whole energy storage system and achieving early warning in advance.

Description

Technical Field

[0001] The utility model relates to an energy storage product, in particular to an industrial and commercial integrated energy storage cabinet based on voiceprint vibration detection. Background Technique

[0002] With the rapid development of new energy photovoltaic and wind power, energy storage has also developed rapidly. In particular, the development speed of electrochemical energy storage technology has been amazing in recent years. The current form of the battery cells used in electrochemical energy storage is mainly large-capacity lithium iron phosphate battery cells. Although lithium iron phosphate battery cells have advantages in terms of safety compared to ternary lithium battery cells, there is still a risk of thermal runaway. Currently, there are relatively few fire laws and regulations for energy storage systems. With the development of the industry, the current industry generally adopts measures of early warning plus fire protection to prevent and suppress the occurrence of safety risks in energy storage systems. And the early warning technology has developed rapidly in recent years and has been generally accepted by the market. The early warning technology commonly used in current energy storage systems is the mixed gas detection technology, such as hydrogen and carbon monoxide detection sensors. By installing sensors in the PACK, when problems occur in the battery cells, such as overcharging, combustible gases will be leaked, and the sensors determine whether there is a safety risk in the battery cells by detecting the presence of these gases. However, this technology has three problems: First, the lifespan of this sensor is relatively short, generally 2 - 3 years, which cannot meet the needs of the 8 - 10 - year operation of the energy storage system. And since it is installed inside the PACK, it is not easy to replace after the lifespan expires, bringing higher after - sales costs; Second, the detection time is relatively long. Since the leakage of gas from the battery cells is a slow process and it takes a certain amount of time for the gas to diffuse to a detectable position by the sensor, the detection period using the gas sensor is relatively long; Third, the cost is relatively high. On the one hand, due to the short lifespan and difficult replacement, it brings higher after - sales costs. On the other hand, the cost of the combustible gas sensor itself is also relatively high. Content of the Utility Model

[0003] To solve the above - mentioned technical problems, the technical solution provided by the utility model is: An industrial and commercial integrated energy storage cabinet based on voiceprint vibration detection, including a cabinet body. The cabinet body is divided into an upper cabinet body, a middle cabinet body, and a lower cabinet body. An perfluoromethylcyclohexanone medicine tank and a liquid chiller are arranged in the upper cabinet body. An array of battery modules is arranged in the middle cabinet body. An energy storage inverter and a high - voltage box are arranged in the lower cabinet body. A main board, a fire protection main board connected to the main board, a point - type heat - sensitive fire detector, a thermo - aerosol fire extinguishing device, an optical - electric smoke detector, and a switching power supply connected to the fire protection main board are arranged on the back panel of the cabinet body. A cooling fan is arranged at the bottom of the back panel of the cabinet body. A cable inlet hole is also arranged at the bottom of the cabinet body.

[0004] The advantages of this utility model compared with the prior art are as follows: (1) Low cost: This product utilizes the integrated design concept, closely coordinates each component, and achieves low-cost design. In particular, the technological innovation brought by the early warning detection technology can reduce the after-sales maintenance cost.

[0005] (2) Short detection cycle: The speed of sound propagation in air is 340 m / s. Therefore, by using the voiceprint sensor to detect the sound at the moment when the battery cell valve opens, the detection time can be greatly improved, and early warning can be truly achieved.

[0006] (3) Long service life: The energy storage system of this product can operate normally with two charges and two discharges per day and has a service life of 8 - 10 years. Moreover, based on the detection technology of the voiceprint vibration sensor, the service life of early warning can be even longer.

[0007] (4) Simple installation: This product is an AllinOne integrated product, and the output can be directly connected to the user side 400 Vac. The installation is simple and fast, reducing the labor construction cost. Description of the Drawings

[0008] Figure 1 It is a schematic diagram of the internal structure of an industrial and commercial integrated energy storage cabinet based on voiceprint vibration detection of this utility model.

[0009] Figure 2 It is a schematic diagram of the back structure of an industrial and commercial integrated energy storage cabinet based on voiceprint vibration detection of this utility model.

[0010] Figure 3 It is a schematic diagram of the wiring structure of an industrial and commercial integrated energy storage cabinet based on voiceprint vibration detection of this utility model. Specific Embodiments

[0011] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, of the embodiments of this utility model. Usually, the components of the embodiments of this utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0012] In the description of the embodiments of the present utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is customarily placed during use, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for differential description and cannot be construed as indicating or implying relative importance.

[0013] In addition, if terms such as "horizontal", "vertical", "hanging" and other terms do not mean that the component is required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0014] In the description of the embodiments of the present utility model, "a plurality of" represents at least two.

[0015] In the description of the embodiments of the present utility model, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", "connected" are understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0016] Embodiment:

[0017] An industrial and commercial integrated energy storage cabinet based on voiceprint vibration detection, comprising a cabinet body 1, which is divided into an upper cabinet body, a middle cabinet body and a lower cabinet body. An perfluoromethylcyclohexanone agent tank 2 and a liquid chiller 3 are arranged in the upper cabinet body. An array of battery modules 4 are arranged in the middle cabinet body. An energy storage inverter 5 and a high-voltage box 6 are arranged in the lower cabinet body. A main board 7, a fire control main board 8 connected to the main board 7, a spot-type heat detector 9, a thermal aerosol fire extinguishing device 10, a photoelectric smoke detector 11, and a switching power supply 12 connected to the fire control main board 8 are arranged on the back panel of the cabinet body 1. A cooling fan 13 is arranged at the bottom of the back panel of the cabinet body 1. A cable inlet hole 14 is also arranged at the bottom of the cabinet body 1; the liquid chiller 3 is connected to the liquid cooling circulation system of the battery module 4 through a liquid cooling pipeline 15; a fire control pipeline 16 is arranged in the middle cabinet body, and the fire control pipeline 16 is connected to the perfluoromethylcyclohexanone agent tank 2; the energy storage inverter 5 is an energy storage bidirectional PCS; the energy storage inverter 5 is connected to the battery module 4 through the high-voltage box 6; the main board 7 is connected to the high-voltage box 6, the battery module 4, and the liquid chiller 3, and is connected to an external communication interface.

[0018] Among them, the spot-type heat detector is used to detect the temperature inside the cabinet to judge whether a fire occurs; the thermal aerosol fire extinguishing device is used to extinguish the fire inside the cabinet; the photoelectric smoke detector is used to detect the smoke inside the cabinet to judge whether a fire occurs; the fan is used for the heat dissipation of the energy storage inverter PCS; the perfluoromethylcyclohexanone agent tank is used to extinguish the fire and cool down the thermal runaway that occurs inside the battery module; the fire control main board is used to capture sensor data, analyze it, and actuate the perfluoromethylcyclohexanone agent tank and the thermal aerosol fire extinguishing device; the main board is used to control the operating state of the entire system; the switching power supply is used for power supply to weak-current devices; the energy storage inverter is a power device for charging and discharging the battery energy storage system; the cable inlet hole is used for external wiring; the liquid chiller is used to dissipate heat from the battery module; the liquid cooling pipeline is a pipeline for coolant circulation; the battery module is the core of the system, including 52 280Ah battery cells, BMU, voiceprint vibration sensor, fuse, liquid cooling plate and other components, which need to be used in series and can store and release electric energy; the fire control pipeline is the path for injecting perfluoromethylcyclohexanone into the battery module; the high-voltage box is used to control the DC side switch of the battery cluster.

[0019] In specific implementation, when the battery cell opens the pressure relief valve due to overcharging or other reasons; the sound of the opening of the pressure relief valve of the battery cell is transmitted to the voiceprint sensor at the moment of opening; after the voiceprint sensor detects the sound of the opening of the battery cell valve, it analyzes and judges whether it is the opening of the battery cell valve, and uploads the analysis result to the fire control main board; the fire control main board judges whether to actuate the fire fighting equipment according to the feedback result, and at the same time uploads this fault information to the main board, and the main board controls the entire system to power off and stop.

[0020] The utility model is an All in One product, which includes equipment such as a battery module, a high-voltage box, a liquid-cooled chiller, a fire protection device, a PCS, etc. The output can be directly connected to the 400Vac side of the user, which is convenient and fast. Moreover, based on the voiceprint vibration detection technology, the safe operation of the entire energy storage system can be guaranteed, and early warning can be achieved.

[0021] The above describes the utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the creative purpose of the utility model, they shall fall within the protection scope of the utility model.

Claims

1. An industrial and commercial integrated energy storage cabinet based on voiceprint vibration detection, characterized in that, it includes a cabinet body, which is divided into an upper cabinet body, a middle cabinet body and a lower cabinet body. Inside the upper cabinet body, there are a perfluoromethyl hexanone medicine tank and a liquid chiller. Inside the middle cabinet body, there are several groups of battery modules. Inside the lower cabinet body, there are an energy storage inverter and a high-voltage box. On the back panel of the cabinet body, there are a main board, a fire control main board connected to the main board, a point-type temperature-sensing fire detector, a heat aerosol fire extinguishing device, a photoelectric smoke detector, and a switching power supply connected to the fire control main board. At the bottom of the back panel of the cabinet body, there is a cooling fan, and at the bottom of the cabinet body, there is also a cable inlet hole; The battery module includes 52 280Ah battery cells used in series, a BMU, a voiceprint vibration sensor, a fuse, and a liquid cooling plate.

2. The industrial and commercial integrated energy storage cabinet based on voiceprint vibration detection according to claim 1, characterized in that, the liquid chiller is connected to the liquid cooling circulation system of the battery module through a liquid cooling pipeline.

3. The industrial and commercial integrated energy storage cabinet based on voiceprint vibration detection according to claim 1, characterized in that, there is a fire pipeline arranged inside the middle cabinet body, and the fire pipeline is connected to the perfluoromethyl hexanone medicine tank.

4. The industrial and commercial integrated energy storage cabinet based on voiceprint vibration detection according to claim 1, characterized in that, the energy storage inverter is an energy storage bidirectional PCS.

5. The industrial and commercial integrated energy storage cabinet based on voiceprint vibration detection according to claim 1, characterized in that, the energy storage inverter is connected to the battery module through the high-voltage box.

6. The industrial and commercial integrated energy storage cabinet based on voiceprint vibration detection according to claim 1, characterized in that, the main board is connected to the high-voltage box, the battery module, and the liquid chiller, and is connected to an external communication interface.

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