Balcony light storage system device

Abstract

The utility model discloses a balcony light storage system device, and belongs to the field of light storage and charging systems. Comprising a light following support module laid on a balcony guardrail of a building, a photovoltaic panel arranged on the light following support module, an energy storage battery module arranged in a balcony and electrically connected with the photovoltaic panel, and a micro inverter arranged in the balcony and suitable for electrically connecting the energy storage battery module with an external alternating current output end, and the energy management module is in communication connection with the energy storage battery module and the light following bracket module. According to the utility model, a light storage energy matrix composed of household light storage devices flexibly expanded in a simple building block building mode is adopted, single-system operation and multi-system alternating current side parallel operation can be realized, the components of the light storage system device can be flexibly mounted and dismounted, the operation and maintenance are convenient, the system configuration is flexible, and the later expansion of a user is facilitated; the whole system meets the differential application requirements of different balcony sizes and different battery capacity configurations in balcony light storage application scenes.

Description

Technical Field

[0001] The utility model belongs to the field of light storage and charging systems, in particular to a balcony light storage system device. Background Art

[0002] In some areas around the world, especially in developing countries, the grid infrastructure is not perfect, resulting in unstable power supply. At the same time, as global energy costs rise, electricity prices are also rising. Household photovoltaic storage systems use renewable energy such as solar photovoltaics combined with energy storage batteries to store electricity during periods of low electricity prices and use it during peak hours, thereby reducing electricity bills and improving economic efficiency. It helps users effectively use renewable energy, reduce household electricity costs, reduce carbon footprint, and achieve green living.

[0003] At present, most household photovoltaic storage and charging systems use a hybrid inverter system, combined with a storage battery system, to build a household photovoltaic storage system inside the home. The hybrid inverter used in this household energy storage system requires a large area of ​​photovoltaic panels. Some apartments do not have separate roofs like villas for laying photovoltaic panels. Therefore, it is not convenient to install a photovoltaic storage system in apartments and other places without photovoltaic panel laying environments, and it is impossible to effectively install photovoltaic panels to build a suitable photovoltaic storage system.

[0004] Therefore, the market demand for building a small-scale solar energy storage matrix to realize applications in different balcony scene environments has become an urgent problem to be solved in this field. Utility Model Content

[0005] In order to overcome the above technical defects, the utility model provides a balcony solar storage system device to solve the problems involved in the background technology.

[0006] The utility model provides a balcony photo-storage system device, comprising: a light-chasing bracket module laid on a balcony guardrail of a building, a photovoltaic panel arranged on the light-chasing bracket module, an energy storage battery module arranged in the balcony and electrically connected to the photovoltaic panel, a micro-inverter arranged in the balcony and suitable for electrically connecting the energy storage battery module to an external AC output terminal, and an energy management module communicatively connected to the energy storage battery module and the light-chasing bracket module.

[0007] Preferably or optionally, the light-chasing bracket module includes: a light sensor for obtaining the light intensity at the current time and position, a rotating bracket installed on the balcony guardrail and suitable for installing the photovoltaic panel, a driving device for driving the output end of the rotating bracket to rotate a predetermined angle relative to the balcony guardrail, and a bracket controller connected to communicate with the driving device and the light sensor.

[0008] Preferably or optionally, the support controller is communicatively connected to the energy management module.

[0009] Preferably or optionally, the photovoltaic panel and the energy storage battery module are connected via a PV connection line; the energy storage battery module and the micro inverter are connected via a DC connection line.

[0010] Preferably or optionally, the energy management module is connected to the cloud server via a communication data stick using a WIFI / 4G link.

[0011] Preferably or optionally, the energy storage battery module is a battery energy block composed of battery cells connected in series and parallel and combined with a protection board controller to form a DC battery system.

[0012] Preferably or optionally, the energy storage battery module further includes a fire prevention and control device;

[0013] The fire prevention and control device is communicatively connected with the energy management module.

[0014] Preferably or optionally, the fire prevention and control device includes an aerosol fire extinguishing device arranged inside the energy storage battery module, and a temperature and / or smoke sensor and a fire controller arranged in combination.

[0015] Preferably or optionally, the external AC output terminal is connected to a household electrical appliance and / or a commercial power grid.

[0016] The utility model relates to a balcony light storage system device, which has the following beneficial effects compared with the prior art:

[0017] 1. The utility model adopts a distributed equipment modular design. Users can flexibly select the number of photovoltaic panels, the capacity of the energy storage battery module, the power composition of the micro-inverter, and the single system solution, as well as the multi-system solution in parallel according to the actual situation of the balcony, so as to meet the photovoltaic power, inverter power, and battery capacity requirements under different balcony scene applications. In engineering applications, it can be standardized and simplified for flexible and dynamic expansion.

[0018] 2. The utility model only needs to be installed once, without the need for multiple on-site installations, which simplifies the installation time. Remote monitoring can be implemented through the intelligent operation and maintenance management cloud platform and APP, which reduces user operation and maintenance costs, improves installation efficiency, reduces operation and maintenance management costs, and improves the operation and maintenance efficiency of the system device.

[0019] 3. The utility model only needs to be debugged once after the installation is completed, and the system is put online, thereby improving the debugging efficiency and enhancing the user experience.

[0020] 4. The utility model can also be used as an emergency backup power supply to provide power support in emergency situations such as power outages or natural disasters, thereby increasing the reliability of household electricity use.

[0021] 5. The utility model is equipped with a light-chasing bracket module, which can intelligently chase light by rotating the photovoltaic panel through a rotating bracket, thereby rotating the irradiation surface of the photovoltaic panel and improving the overall photovoltaic power generation efficiency of the system.

[0022] In summary, the utility model lays photovoltaic panels on the balcony, combines small-capacity energy storage battery modules, and uses micro-inverters and other equipment for distributed "building blocks" flexible installation. According to different balcony scenes, a small photovoltaic energy storage matrix is ​​constructed to meet the application needs of different balcony on-site environments. At the same time, through intelligent servers and APPs, the user's operation and maintenance costs are reduced, and users are facilitated to carry out intelligent monitoring and flexible later expansion. It is convenient and flexible to use to meet the differentiated energy needs in household balcony application scenarios and meet the needs of saving electricity bills during peak power hours. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a system diagram of a balcony solar storage system device of the utility model.

[0024] Figure 2 This is a schematic diagram of electrical connections for a balcony solar storage system device of the utility model.

[0025] Figure 3 This is a schematic diagram of a communication connection example of an energy management module of a balcony photovoltaic storage system device of the present utility model.

[0026] The accompanying drawings are marked as follows: 1. Photovoltaic panel; 2. Chasing light bracket module; 3. Energy storage battery module; 4. Fire prevention and control device; 5. Micro inverter; 6. Energy management module; 7. Communication data stick; 8. Cloud server. DETAILED DESCRIPTION

[0027] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0028] See attached Figures 1 to 3 A balcony solar storage system device includes: a photovoltaic panel 1, a light chasing bracket module 2, an energy storage battery module 3, a fire prevention and control device 4, a micro inverter 5, an energy management module 6, a communication data stick 7, a cloud server 8 and other core equipment.

[0029] The light-chasing bracket module 2 is laid on the balcony guardrail of the building, and the photovoltaic panel 1 is arranged on the light-chasing bracket module 2. The light-chasing bracket module 2 can flexibly clamp the photovoltaic panel 1, and by rotating the irradiation surface of the photovoltaic panel 1, the overall photovoltaic power generation efficiency of the system is improved; the energy storage battery module 3 is arranged in the balcony, and is electrically connected to the photovoltaic panel 1 through a PV connection line; the micro inverter 5 is arranged in the balcony, suitable for electrically connecting the energy storage battery module 3 to the external AC output end, and the energy storage battery module 3 and the micro inverter 5 are connected through a DC connection line; the energy management module 6 is connected to the energy storage battery module 3 and the light-chasing bracket module 2. The balcony photovoltaic storage system device in this embodiment is equipped with two 405W photovoltaic panels 1, 3.2kWh energy storage battery modules 3, and a micro inverter 5 with a rated power of 600W. A single-axis tracking bracket (1P) is used in combination with a drive device and a controller to form a light-chasing bracket module 2.

[0030] In a further embodiment, the photovoltaic panel 1 adopts the Trina Solar Vertex series Little King Kong 405W module, with a maximum power of 405W, a maximum efficiency of 21.1%+, a weight of 21kg, and a size of 1754×1096×30mm. Other properties of the module are open circuit voltage Voc=41.4V, short circuit current Isc=12.34A, operating voltage at maximum power point Vmpp=34.4V, and operating current at maximum power point Impp=11.77A.

[0031] In a further embodiment, the light-chasing bracket module 2 includes: a light sensor for obtaining the light intensity at the current time and position, a rotating bracket installed on the balcony guardrail and suitable for installing the photovoltaic panel 1, a driving device for driving the output end of the rotating bracket to rotate a predetermined angle relative to the balcony guardrail, and a bracket controller connected to the driving device and the light sensor. MPPT tracking is performed by obtaining light intensity parameters, and the bracket controller controls the driving device to drive the rotating bracket, adjusts the component angle according to the position of the sun, and obtains more solar radiation by tracking the solar azimuth by rotating the bracket, thereby greatly increasing the photovoltaic power generation. Among them, the power supply of the bracket controller comes from the energy storage battery module 3. Specifically, the bracket controller is electrically connected to the DC output interface of the energy storage battery module 3, and the bracket controller has an external communication interface and is interactively connected to the energy management module 6. As for the structure of the rotating bracket and the driving device, it can be a variety of different forms of angle adjustment devices, such as a rotating structure in which a motor drives the mounting frame to rotate, and a rotating structure in which a linear module drives the mounting frame to rotate along a certain rotation point. They are all conventional settings in the field, so they will not be further expanded here.

[0032] In a further embodiment, the energy storage battery module 3 is a DC battery system composed of a battery energy block composed of battery cells connected in series and parallel and a protection board controller. Specifically, the energy storage battery module 3 adopts the FEB-ESS32 model energy storage battery system of Far East Battery Jiangsu Co., Ltd., whose PV input parameters: support 2 210W-650W photovoltaic modules, MPPT voltage range 25 ~ 60Vdc, starting voltage 25Vdc, maximum input current 2x20A, maximum input short-circuit current 2x30A; DC output parameter characteristics: DC output current 2x20A, output voltage range 28 ~ 36Vdc; battery parameter characteristics: capacity 3200Wh, available capacity (90% DOD) 2880Wh, rated voltage 32Vdc, maximum charging current 50A, maximum discharge current 60A, working voltage range 28 ~ 36Vdc. The energy storage battery module 3 has multiple photovoltaic panel access interfaces (PV input interfaces) connected to the PV+ / PV- of the photovoltaic panel 1, one photovoltaic DC circuit breaker for disconnecting the photovoltaic input, multiple DC output interfaces (DC output interfaces) connected to the photovoltaic DC input interface (DCPV input interface) of the micro inverter 5, one DC output interface (DC output) electrically connected to the power supply of the bracket controller in the chasing bracket module 2, and the external communication interface of the control panel of the energy storage battery module 3 is interactively connected to the energy management module 6 for communication.

[0033] The energy storage battery module 3 also includes a fire prevention and control device 4; the fire prevention and control device 4 is connected to the energy management module 6. The fire prevention and control device 4 includes an aerosol fire extinguishing device arranged inside the energy storage battery module 3, as well as a temperature and / or smoke sensor and a fire controller arranged in combination. The aerosol fire extinguishing device is a set of 30g aerosol containers equipped with 4 nozzles. Its fire protection system has a three-level control protection prevention and control logic. The first level is a single sensor triggering an alarm. The system issues an alarm and triggers the energy storage battery module 3 protection board to reduce the current. The second level is two sensors triggering an alarm at the same time. The system issues an alarm and triggers the energy storage battery module 3 protection to not allow charging and discharging. The third level is when the temperature reaches the aerosol trigger action when the second level is not restored.

[0034] In a further embodiment, the micro-inverter 5 adopts the FEB-MI800-2302 model 800W micro-inverter 5 of Far East Battery Jiangsu Co., Ltd. The micro-inverter 5 is a device that converts photovoltaic or energy storage energy into household AC power. Its DC input end parameters: maximum input voltage 60V, MPPT voltage range 25~55V, starting voltage 25V, maximum input current 2x13, maximum input short-circuit current 2x19.5A, maximum number of MPPTs 2, and the number of input interfaces of each MPPT is 1; its DC output end parameters: rated output power 800VA, rated output current 3.6A, normal output voltage 220V, voltage range 180~275V, normal frequency 50Hz, frequency range 48~52Hz, power factor>0.99, peak efficiency 96.5%, CEC maximum efficiency 95%, MPPT efficiency 99%; specifically, the micro inverter 5 has multiple DC input interfaces (DC input interfaces) for electrically connecting to the DC output interface (DC output interface) of the energy storage battery module 3, the micro inverter 5 also has an AC output interface (AC output interface) for outputting electrical energy to the home, and the micro inverter 5 also has an external communication interface for communication and interaction with the energy management module 6.

[0035] In a further embodiment, the energy management module 6 is connected to the cloud server 8 via a communication data stick 7 using a WIFI / 4G link. Figure 3 The energy management module 6 has 2 RS485 communication interfaces, 1 CAN communication interface, and 1 RS232 communication interface. The energy management module 6 is connected to the bracket controller communication interface through the RS485 communication interface; the energy management module 6 is connected to the energy storage battery module 3 protection board controller communication interface through the CAN communication interface, the energy management module 6 is connected to the fire controller communication interface through the RS485 communication interface, and the energy management module 6 is connected to the communication data stick 7 communication interaction interface through the RS232 communication interface.

[0036] The communication data stick 7 has an RS232 interface that is connected to the energy management module 6 for communication. The communication data stick 7 has a WIIF interface, and the communication data stick 7 can be networked for wired network communication through the APP. After the network is configured, the balcony photovoltaic storage system device can be connected to the cloud server 8 through the Internet. The cloud server 8 and the communication data stick 7 communicate and interact through the MQTT protocol, and the overall information of the balcony photovoltaic storage system is obtained through communication.

[0037] The cloud server 8 is used to aggregate the data of balcony photovoltaic energy storage system devices distributed in various areas, and is used to provide digital intelligent services in combination with the system status and the control and setting interfaces opened by the system. Users / operation and maintenance personnel can understand the system status, the benefits of photovoltaic energy storage and the alarm protection status of the system devices through APP / WEB, which facilitates remote operation and maintenance and reduces operation and maintenance costs.

[0038] In a further embodiment, the external AC output terminal is connected to household electrical appliances and / or a mains power grid. Therefore, the balcony solar storage system can be used as an emergency backup power supply to provide power support in emergency situations such as power outages or natural disasters, thereby increasing the reliability of household electricity use.

[0039] To sum up, the balcony photovoltaic storage system device proposed in this embodiment only requires the installer to connect the photovoltaic panel 1, energy storage battery, micro inverter 5, and chasing bracket module 2 according to the electrical and communication wiring in the above example, and set the system working mode through the mobile phone APP, so as to quickly and efficiently build the application environment of a single system. If the capacity of a single system and the photovoltaic panel 1 cannot meet the application requirements of customers and sites, more than two balcony photovoltaic storage system devices can be configured in parallel at the AC output end, and this "building block" mode can be used to build a multi-machine system matrix system. Only one integrated installation is required, and multiple on-site installations are not required, which simplifies the installation time, integrates debugging and operation and maintenance, and facilitates flexible expansion. Remote monitoring can be implemented through the intelligent operation and maintenance management cloud platform and APP, which reduces user operation and maintenance costs, improves installation efficiency, reduces operation and maintenance management expenses, and improves the operation and maintenance efficiency of the system device.

[0040] At the same time, by adopting this balcony photovoltaic storage system device, equipped with a light-chasing bracket module 2, the photovoltaic panel 1 is rotated by rotating the bracket to perform intelligent tracking and light-chasing, and the irradiation surface of the photovoltaic panel 1 is rotated, thereby improving the overall photovoltaic power generation efficiency of the system. In addition, by adopting this balcony photovoltaic storage system device, it can be used as an emergency backup power supply to provide power support in emergency situations such as power outages or natural disasters, thereby increasing the reliability of household electricity use.

[0041] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

Claims

1. A balcony solar storage system device, characterized in that: include: A light-chasing bracket module laid on the balcony guardrail of a building, a photovoltaic panel arranged on the light-chasing bracket module, an energy storage battery module arranged in the balcony and electrically connected to the photovoltaic panel, a micro-inverter arranged in the balcony and suitable for electrically connecting the energy storage battery module to an external AC output terminal, and an energy management module communicatively connected to the energy storage battery module and the light-chasing bracket module.

2. The balcony solar storage system device according to claim 1, characterized in that: The light-chasing bracket module includes: a light sensor for obtaining the light intensity at the current time and position, a rotating bracket installed on the balcony guardrail and suitable for installing the photovoltaic panel, a driving device for driving the output end of the rotating bracket to rotate a predetermined angle relative to the balcony guardrail, and a bracket controller connected to communicate with the driving device and the light sensor.

3. The balcony solar storage system device according to claim 2, characterized in that: The support controller is communicatively connected to the energy management module.

4. The balcony solar storage system device according to claim 1, characterized in that: The photovoltaic panel and the energy storage battery module are connected via a PV connection line; the energy storage battery module and the micro inverter are connected via a DC connection line.

5. The balcony solar storage system device according to claim 1, characterized in that: The energy management module is connected to the cloud server via a communication data stick using a WIFI / 4G link.

6. The balcony solar storage system device according to claim 1, characterized in that: The energy storage battery module is a battery energy block composed of battery cells connected in series and parallel and a protection board controller to form a DC battery system.

7. The balcony solar storage system device according to claim 1, characterized in that: The energy storage battery module also includes a fire prevention and control device; The fire prevention and control device is communicatively connected with the energy management module.

8. The balcony solar storage system device according to claim 7, characterized in that: The fire prevention and control device includes an aerosol fire extinguishing device arranged inside the energy storage battery module, and a temperature and / or smoke sensor and a fire controller arranged in combination.

9. The balcony solar storage system device according to claim 1, characterized in that: The external AC output terminal is connected to household electrical appliances and / or a commercial power grid.

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