Source-grid-load-storage integrated outdoor box

Abstract

The utility model provides a source network load storage integrated outdoor box comprising a box body, the box body comprises a top cover and a housing, and one side of the top cover back to the housing is provided with a photovoltaic power generation module; the energy storage module is accommodated in the shell and is used for storing the electric energy generated by the corresponding photovoltaic power generation panel; the power distribution module is contained in the shell, the power distribution module is provided with an input end and at least one output end, the input end is connected to the mains supply, and the output end is connected to an electric load; the inverters are respectively connected with the photovoltaic power generation panel and the energy storage battery, and each inverter is also connected to the input end of the power distribution module; the metering module is used for detecting the power supply voltage of the power distribution module; and the main controller is connected with the metering module and is used for controlling the energy storage module to supply power to the power distribution module under the condition that the power supply voltage is lower than a first voltage threshold. Therefore, the power supply stability of the distribution box at the tail end of the power supply system can be improved.

Description

Technical Field

[0001] The utility model embodiment relates to the technical field of power supply, and specifically to an outdoor box integrating source, grid, load and storage. Background Art

[0002] The distribution box is the terminal equipment of the distribution system. Due to its advantages of low cost, light weight and easy installation, it is often used in scenarios with dispersed power loads, such as some relatively remote areas with fewer power grid users. Most of the existing distribution boxes use a single power supply method of power grid power supply. As the terminal equipment of the power grid system, the problem of low power supply voltage transmitted to the distribution box often occurs. At the same time, since these distribution boxes are generally used outdoors in relatively remote suburbs, and the maintenance of these distribution boxes installed outdoors in the suburbs is relatively small, this further leads to insufficient reliability of power supply to users through distribution boxes. How to improve the power supply reliability of distribution boxes is very important. Utility Model Content

[0003] The main purpose of the embodiment of the utility model is to provide an outdoor box with integrated source, grid, load and storage, which can effectively improve the reliability of power supply using a distribution box.

[0004] An outdoor box integrating source, grid, load and storage, characterized by comprising:

[0005] A box body, the box body comprising a top cover and a shell, the top cover is installed on the top of the shell, a photovoltaic power generation module is installed on the side of the top cover facing away from the shell, and the photovoltaic power generation module comprises at least one photovoltaic power generation panel;

[0006] An energy storage module, accommodated inside the housing, includes at least one energy storage battery, the energy storage batteries and the photovoltaic panels are arranged one by one, and each of the energy storage batteries is used to store the electric energy generated by the corresponding photovoltaic panel;

[0007] A power distribution module is accommodated in the housing, and is provided with an input end and at least one output end, wherein the input end is connected to the mains, and the output end is connected to the power load;

[0008] At least one inverter, wherein the inverter and the photovoltaic power generation panel are arranged one by one, each inverter is respectively connected to the corresponding photovoltaic power generation panel and the energy storage battery corresponding to the photovoltaic power generation panel, and each inverter is also connected to the input end of the power distribution module;

[0009] A metering module, the metering module is used to detect the power supply voltage of the power distribution module;

[0010] A main controller is connected to the metering module and is used to control the energy storage module to supply power to the power distribution module when the power supply voltage is lower than a first voltage threshold.

[0011] In some embodiments, the metering module includes at least one current transformer disposed inside the power distribution module and a meter coupled to the current transformer, and the meter is communicatively connected to the main control module.

[0012] In some embodiments, the shell includes a first installation chamber and a second installation chamber arranged in sequence, the energy storage module is accommodated in the first installation chamber, the inverter is accommodated in the second installation chamber, the power distribution module includes a low-voltage power distribution cabinet accommodated in the second installation chamber, and an isolation plate is arranged between the first installation chamber and the second installation chamber, and the isolation plate is made of fireproof material.

[0013] In some embodiments, a three-pole molded case circuit breaker is connected between the inverter and the power distribution module.

[0014] In some embodiments, a four-pole molded case circuit breaker is provided at the output end of the power distribution module.

[0015] In some embodiments, a residual current protector is provided at the input end of the power distribution module.

[0016] In some embodiments, an isolating switch is provided at the input end of the distribution module, and the isolating switch is used to isolate the first power supply branch and the second power supply branch of the input end of the distribution module, the first power supply branch is the branch between the input end of the distribution module and the inverter, and the second power supply branch is the branch connecting the input end of the distribution module to the mains.

[0017] In some embodiments, the top cover covers the top of the shell and then extends outward to form an extension area.

[0018] In some embodiments, the outer sidewall of the housing is coated with a waterproof plastic coating.

[0019] In some embodiments, the housing is provided with a plurality of wire inlet holes and wire outlet holes, and the inner ring of each of the wire inlet holes and the wire outlet holes is provided with a rubber sealing ring.

[0020] The utility model embodiment proposes an outdoor box with source, grid, load and storage, comprising: a box body, the box body comprising a top cover and a shell, the top cover is installed on the top of the shell, a photovoltaic power generation module is installed on the side of the top cover facing away from the shell, and the photovoltaic power generation module includes at least one photovoltaic power generation panel; an energy storage module, accommodated in the interior of the shell, comprising at least one energy storage battery, the energy storage battery and the photovoltaic power generation panel are arranged in a one-to-one correspondence, and each of the energy storage batteries is used to store the electric energy generated by the corresponding photovoltaic power generation panel; a power distribution module, accommodated in the interior of the shell, the power distribution module is provided with an input terminal and at least an output end, the input end is connected to the mains, and the output end is connected to the power load; at least one inverter, the inverter and the photovoltaic panel are arranged in a one-to-one correspondence, each inverter is respectively connected to the corresponding photovoltaic panel and the energy storage battery corresponding to the photovoltaic panel, and each inverter is also connected to the input end of the distribution module; a metering module, the metering module is used to detect the power supply voltage of the distribution module; a main controller, the main controller is connected to the metering module, and is used to control the energy storage module to supply power to the distribution module when the power supply voltage is lower than a first voltage threshold. A photovoltaic bracket is arranged on the top cover of the box to install a photovoltaic panel, and the energy storage battery is charged by the photovoltaic panel. At the same time, the direct current generated by the photovoltaic panel is converted into alternating current by an inverter and then input into the distribution module, and the distribution module is supplied with power together with the city power, thereby increasing the supply voltage of the distribution module, thereby improving the power supply stability of the outdoor box with source, grid, load and storage integrated. At the same time, the supply voltage of the distribution network is detected by the metering module and the detected supply voltage is reported to the main controller. When it is detected that the supply voltage is lower than the first voltage threshold, the main controller drives the energy storage battery to discharge, and the direct current output by the energy storage battery is converted into alternating current by the inverter and then input into the distribution module, thereby compensating the supply voltage of the distribution module, so that the supply voltage of the distribution module can be maintained higher than the first voltage threshold, thereby avoiding the situation where the supply voltage of the outdoor box with source, grid, load and storage integrated is insufficient, and improving the power supply stability of the outdoor box with source, grid, load and storage integrated. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a circuit topology diagram of an outdoor box with integrated source, grid, load and storage proposed in an embodiment of the utility model;

[0022] Figure 2 This is a structural front view of the outdoor box with integrated source, grid, load and storage proposed in the embodiment of the utility model;

[0023] Figure 3 It is a three-dimensional view of the outdoor box with integrated source, grid, load and storage proposed in the embodiment of the utility model;

[0024] Figure 4It is a circuit structure diagram of the outdoor box with integrated source, grid, load and storage proposed in the embodiment of the utility model. DETAILED DESCRIPTION

[0025] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of the present invention, and cannot be understood as limiting the embodiments of the present invention.

[0026] In the description of the embodiments of the present invention, it should be understood that the descriptions involving orientation, such as up, down, front, back, left, right, etc., the orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0027] In the description of the embodiments of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of the first and the second, it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the embodiments of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the embodiments of the present invention based on the specific content of the technical solution.

[0029] Reference Figures 1 to 3 The first embodiment of the utility model provides a source-grid-load-storage integrated outdoor box, comprising:

[0030] The box body includes a top cover 108 and a shell 107. The top cover 108 is installed on the top of the shell 107. A photovoltaic power generation module 101 is installed on the side of the top cover 108 facing away from the shell 107. The photovoltaic power generation module 101 includes at least one photovoltaic power generation panel;

[0031] The energy storage module 102 is accommodated in the housing 107 and includes at least one energy storage battery. The energy storage batteries and photovoltaic panels are arranged one by one, and each energy storage battery is used to store the electric energy generated by the corresponding photovoltaic panel;

[0032] The power distribution module 104 is accommodated in the housing 107. The power distribution module 104 is provided with an input terminal and at least one output terminal. The input terminal is connected to the mains, and the output terminal is connected to the power load.

[0033] At least one inverter 103, the inverters 103 and the photovoltaic panels are arranged one by one, each inverter 103 is respectively connected to the corresponding photovoltaic panel and the energy storage battery corresponding to the photovoltaic panel, and each inverter 103 is also connected to the input end of the power distribution module 104;

[0034] A metering module 105, the metering module 105 is used to detect the supply voltage of the power distribution module 104;

[0035] The main controller 106 is connected to the metering module 105 and is used to control the energy storage module 102 to supply power to the power distribution module 104 when the power supply voltage is lower than the first voltage threshold.

[0036] In some embodiments, the box includes a shell 107 and a top cover 108 installed on the top of the shell 107. At least one photovoltaic bracket is provided on the side of the top cover 108 facing away from the shell 107, and the photovoltaic power generation panel is installed on the photovoltaic bracket. It can be understood that the upper surface of the top cover 108 can be a plane parallel to the top of the shell 107. After the top cover 108 is installed on the shell 107, it completely covers the top of the shell 107 to form a sealed structure, which can prevent rainwater or other liquids from flowing into the shell 107 from the top of the box and causing damage to the electronic devices accommodated in the shell 107. A photovoltaic mounting bracket 109 is provided on the side of the top cover facing away from the shell. After the photovoltaic power generation panel is installed on the top cover 108, the upper surface of the photovoltaic power generation panel can be parallel to the ground, so that the photovoltaic power generation panel can obtain a longer light exposure time, thereby better performing photovoltaic power generation. In some embodiments, after the photovoltaic panels are installed on the top cover 108, they can also be tilted toward the ground. The direction of the tilt can be determined according to the geographical location of the outdoor box with integrated source, grid, load and storage. Specifically, when the photovoltaic panels are installed on the top cover 108, the photovoltaic panels are installed tilted toward the sunny side. In this way, the area of ​​the photovoltaic panels can be increased by tilting the photovoltaic panels while ensuring that the illumination time of the photovoltaic panels remains unchanged, thereby better generating electricity to compensate for the city power supply and improving the power supply stability of the outdoor box with integrated source, grid, load and storage.

[0037] In some embodiments, the energy storage module 102 includes at least one energy storage battery, which is accommodated inside the housing 107. The energy storage battery and the photovoltaic power generation panel are arranged one by one. Each energy storage battery is used to store the electric energy generated by the corresponding photovoltaic power generation panel. Specifically, the energy storage battery and the corresponding photovoltaic power generation panel are electrically connected. It can be understood that since the output voltage of the photovoltaic power generation panel changes due to the influence of light intensity, its output voltage is relatively unstable, and the energy storage battery often has its corresponding charging and discharging voltage range. Based on this, an inverter 103 is connected between the photovoltaic power generation panel and the energy storage battery. The inverter 103 is used for voltage matching to adjust the DC voltage generated by the photovoltaic power generation panel to an amplitude that matches the charging voltage range of the energy storage battery. In addition, since the current output by the photovoltaic power generation panel is also very unstable due to the influence of light intensity, the inverter 103 can also adjust the current output by the photovoltaic power generation panel to avoid unstable charging current damaging the energy storage battery and reducing the life of the energy storage battery.

[0038] In some embodiments, the power distribution module 104 includes at least one low-voltage power distribution cabinet, which is provided with an input terminal and at least one output terminal. The input terminal of the low-voltage power distribution cabinet is connected to the mains power, and the low-voltage power distribution cabinet is directly powered by the power grid. The output terminal of the low-voltage power distribution cabinet is connected to the power load. After the low-voltage power distribution cabinet distributes the power input from the input terminal, the power is output to the power load through each output terminal. At the same time, each inverter 103 is also connected to the input terminal of the low-voltage power distribution cabinet. On the one hand, the inverter 103 directly converts the DC voltage generated by the photovoltaic power generation panel into AC voltage and inputs it into the low-voltage power distribution cabinet, thereby compensating the mains power through photovoltaic power generation and jointly powering the power load. On the other hand, the inverter 103 is also used to convert the DC power output by each energy storage battery into AC power and input it into the low-voltage power distribution cabinet, thereby compensating the power supply voltage of the power distribution module 104 and improving the reliability of the power supply of the outdoor box with integrated source, grid, load and storage.

[0039] In some embodiments, a metering module 105 is also provided in the source-grid-load-storage integrated outdoor box, and the metering module 105 is used to detect in real time the power supply voltage and power supply current and other electrical parameters output by the power distribution module 104, so as to determine whether to use the energy storage battery to output electric energy to compensate the mains. It is understandable that when the power supply voltage input from the mains to the power distribution module 104 is lower than the set voltage threshold, it can be considered that the mains power supply voltage is insufficient, and at this time, the power distribution module 104 should be supplied with power through the energy storage battery to compensate the circuit power.

[0040] In some embodiments, the main controller 106 may include a battery management module for controlling the operating condition of the energy storage battery. The main controller 106 is communicatively connected to the metering module 105. When the metering module 105 detects that the voltage output by the distribution module 104 is less than the first voltage threshold, it indicates that the distribution module 104 is under-powered, and the electric energy input from the AC power and the photovoltaic panels to the low-voltage distribution cabinet is insufficient. At this time, the main control module controls the energy storage battery to output electric energy. The DC power output by the energy storage battery is converted into AC power via the corresponding inverter 103 and then input into the distribution module 104 to compensate for the AC power and increase the voltage of the power supply to the distribution module 104, thereby improving the power supply reliability of the outdoor box with integrated source, grid, load and storage.

[0041] In the embodiment of the present utility model, a photovoltaic bracket is provided on the top cover 108 of the box body to install a photovoltaic panel, and an inverter 103 is used to adjust the current characteristics and voltage characteristics of the direct current generated by the photovoltaic panel to a range that matches the charging current and charging voltage of the energy storage battery, so that the energy storage battery is charged through the photovoltaic panel. At the same time, the direct current generated by the photovoltaic panel is converted into alternating current by the inverter 103 and then input into the distribution module 104, and the distribution module 104 is supplied with power together with the city power, thereby improving the power supply voltage of the distribution module 104, thereby improving the power supply stability of the outdoor box with source, grid, load and storage integrated. At the same time, through the metering module Block 105 detects the power supply voltage of the distribution network, the metering module 105 is connected to the main controller 106, and the metering module 105 reports the detected power supply voltage to the main controller 106. When it is detected that the power supply voltage is lower than the first voltage threshold, the main controller 106 drives the energy storage battery to discharge, and the DC power output by the energy storage battery is converted into AC power by the inverter 103 and input to the distribution module 104, and the power supply voltage of the distribution module 104 is compensated so that the power supply voltage of the distribution module 104 can be maintained higher than the first voltage threshold, thereby avoiding the situation of insufficient power supply voltage of the distribution module and improving the power supply stability of the outdoor box with source, grid, load and storage.

[0042] In some embodiments, the metering module 105 includes a current transformer CT1 disposed on the power distribution module 104 and a meter coupled to the current transformer CT1. Specifically, the current transformer CT1 can be disposed at the input end of the power distribution module 104 and the output end of the power distribution module 104. Specifically, the current transformer CT1 can be an annular magnet winding, which is sleeved on the line at the input end of the power distribution module 104 for receiving the AC power and the line at the output end of the power distribution module 104 for supplying power to the electrical load. The line passes through the center hole of the magnet winding. When current flows through the line, the current transformer CT1 will generate a magnetic field in response to the current flowing through, thereby detecting the power supply current input from the AC power to the power distribution module 104 and the current signal output from the power distribution module 104 to each electrical load. The meter includes a magnetic induction element, which is in the magnetic field generated by the current transformer CT1. In response to the magnetic field generated by the current transformer CT1, the meter can determine the magnitude of the current flowing through. It can be understood that The lines inside the low-voltage distribution cabinet are relatively fixed, and the resistance values ​​between its various interfaces and nodes are also relatively fixed. After the power supply current between the input end of the distribution module 104 and the next node is monitored by the current transformer CT1, the corresponding power supply voltage can be determined based on Ohm's law. Similarly, the corresponding power supply voltage can also be determined based on the power supply current between the output end of the distribution module 104 and the previous circuit node, thereby monitoring the power supply voltage of the mains input to the distribution module and the power supply voltage of the distribution module output to each power load in real time. Afterwards, the main controller 106 determines whether it is necessary to compensate the mains power by outputting power through the energy storage module 102 based on the monitored power supply voltage.

[0043] Reference Figure 2In some embodiments, the shell 107 includes a first installation chamber 201 and a second installation chamber 202 which are arranged in sequence, the energy storage module 102 is accommodated in the first installation chamber 201, and the inverter 103 and the distribution module 104 are accommodated in the second installation chamber 202. Specifically, the distribution module 104 can be a low-voltage distribution cabinet, and an isolation plate 203 made of fireproof material is arranged between the first installation chamber 201 and the second installation chamber 202. Specifically, the isolation plate 203 can be a fireproof plate with a fireproof coating on the surface. It can be understood that at least one small hole can be opened on the plate to allow the line between the energy storage module 102 and the inverter 103 to pass from the first installation chamber 201 to the second installation chamber 202. Based on this, when the energy storage module 102, that is, the energy storage battery, catches fire due to a fault, the isolation plate 203 can control the fire within the first installation chamber 201 to avoid damage to the inverter 103 and the low-voltage distribution cabinet in the second installation chamber 202. In this embodiment, by installing the energy storage module 102 , the inverter 103 and the power distribution module 104 in different independent compartments, the energy storage module 102 can be effectively prevented from catching fire and causing damage to the power distribution module 104 and the inverter 103 .

[0044] In some embodiments, a three-pole molded case circuit breaker QF1 is provided between the inverter and the power distribution module. The circuit breaker model may be CM3-100L / 3340, and its rated working current is 40A. It is understandable that the inverter in this embodiment may be a three-phase inverter, which may convert the direct current output from the photovoltaic power generation panel and the energy storage battery into a three-phase alternating current power supply and then input it into the power distribution module, that is, the circuit between the input end of the inverter and the power distribution module is a three-phase circuit. Based on this, a three-pole molded case circuit breaker QF1 is connected between the input end of the inverter and the power distribution module to protect the power supply circuit. When the current between the inverter and the power distribution module exceeds the rated value or the current increases rapidly, the three-pole molded case circuit breaker QF1 is disconnected to prevent the circuit from being overloaded or short-circuited and causing damage to the power distribution module.

[0045] In some embodiments, the output end of the power distribution module is provided with a four-pole molded case circuit breaker QF2. It can be understood that the output end of the power distribution module is connected to the power load, which is mainly household appliances in the residence. In the residential electrical system, it is necessary to provide a neutral line connection, provide appropriate electrical grounding and current balance. Based on this, it is necessary to set a four-pole molded case circuit breaker QF2 at the output end of the power distribution module to provide protection for the line between the power distribution module and the power load while providing a neutral line interface. Specifically, the model of the four-pole molded case circuit breaker QF2 can be CM3L-100 / 4340B.

[0046] In some embodiments, a residual current protector QF3 is also provided at the input end of the distribution module. Specifically, the residual current protector QF3 is provided at the input end of the distribution module for connecting to the mains power, and is used to monitor whether the current of the mains power input is abnormal. Specifically, when the current of the mains power input is abnormal, such as leakage or current imbalance, the residual current protector QF3 can be quickly triggered to cut off the circuit, thereby avoiding the line leakage between the mains power and the distribution module to cause safety hazards to nearby pedestrians. Specifically, the residual current protector QF3 can adopt the NM2LC-250 series.

[0047] In some embodiments, an isolating switch QF4 is provided at the input end of the distribution module, and the isolating switch QF4 is used for the first input branch and the second input branch of the input end of the distribution module, wherein the first power supply branch is the line between the input end of the distribution module and the inverter, and the second power supply branch is the branch of the input end of the distribution module connected to the mains. It can be understood that in this embodiment, since the distribution module can be powered by the mains and the photovoltaic panels and energy storage batteries through the inverter, in order to prevent the mains and the energy storage batteries and photovoltaic panels that supply power to the distribution module via the inverter from communicating with each other, so that the electric energy output by the energy storage batteries and the photovoltaic panels flows into the mains, based on this, an isolating switch QF4 can be provided at the input end of the distribution module. Specifically, the isolating switch QF4 can be provided on the side where the input end of the distribution module is connected to the mains, and the isolating switch QF4 can be an anti-misoperation switch with model HD11 FA-200 / 380.

[0048] In some embodiments, the top cover covers the top of the shell. Specifically, the top cover completely covers the top of the shell to form a sealing structure to prevent rainwater from flowing from the top of the shell into the shell. In some embodiments, the top cover also includes an extension area. In this way, the top cover completely covers the shell and then extends. On the one hand, the position that can be used to install photovoltaic power generation is increased. On the other hand, after the top cover is extended, the rainwater flowing down from the top cover will not flow directly to the outer surface of the shell, so that the water vapor flowing down along the edge of the top cover penetrates into the shell through the gap on the outer surface of the shell, causing damage to the internal electronic devices, and further improving the waterproof performance of the outdoor box with source, grid, load and storage. It can be understood that the shell and the top cover of the box adopt an integrated molding design. In this way, the shell and the top cover are directly sealed and connected, further preventing water vapor and dust in the air from entering the interior of the box and damaging the internal energy storage module, inverter and distribution module.

[0049] In some embodiments, the outer wall of the shell is coated with a waterproof plastic coating, which can be made of one of the materials such as polycarbonate, polyvinyl chloride, fluororubber, etc. By coating the waterproof plastic coating on the outer wall of the shell and utilizing the hydrophobic properties of the coating material, on the one hand, it can prevent water vapor in the air from causing rust on the outer surface of the shell and reduce the service life of the shell, and at the same time, it can effectively distance water molecules and further improve the waterproof performance of the box.

[0050] In some embodiments, a plurality of inlet holes and outlet holes are provided on the shell. The cables of the AC power enter the shell through the inlet holes and are connected to the input end of the distribution module. The cables of the photovoltaic panels also enter the shell through the inlet holes and are connected to the inverter. The cables led out from the output end of the distribution module extend to the outside of the shell through the outlet holes to connect to various power loads. The inner ring wall of each inlet hole and outlet hole is provided with a rubber sealing ring. When the cable passes through the shell through the inlet hole or the outlet hole, the outer wall of the cable contacts the rubber sealing ring to form a seal, thereby preventing water vapor or dust from entering the shell through the inlet hole or the outlet hole to cause damage to the energy storage battery, inverter and low-voltage distribution cabinet.

[0051] The embodiments described in the embodiments of the present invention are intended to more clearly illustrate the technical solutions of the embodiments of the present invention, and do not constitute a limitation on the technical solutions provided by the embodiments of the present invention. Those skilled in the art will appreciate that with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of the present invention are also applicable to similar technical problems.

[0052] Those skilled in the art will appreciate that the technical solutions shown in the accompanying drawings do not constitute a limitation on the embodiments of the present utility model, and may include more or fewer components than shown in the drawings, or a combination of certain components, or different components.

[0053] The terms "first", "second", "third", "fourth", etc. (if any) in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0054] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but the scope of the rights of the present invention is not limited thereto. Any modification, equivalent substitution and improvement made by a person skilled in the art without departing from the scope and essence of the present invention should be within the scope of the rights of the present invention.

Claims

1. An outdoor box with integrated source, grid, load and storage. It is characterized in that include: A box body, the box body comprising a top cover and a shell, the top cover is installed on the top of the shell, a photovoltaic power generation module is installed on the side of the top cover facing away from the shell, and the photovoltaic power generation module comprises at least one photovoltaic power generation panel; An energy storage module, accommodated inside the housing, includes at least one energy storage battery, the energy storage batteries and the photovoltaic panels are arranged one by one, and each of the energy storage batteries is used to store the electric energy generated by the corresponding photovoltaic panel; A power distribution module is accommodated in the housing, and is provided with an input end and at least one output end, wherein the input end is connected to the mains, and the output end is connected to the power load; At least one inverter, wherein the inverter and the photovoltaic power generation panel are arranged one by one, each inverter is respectively connected to the corresponding photovoltaic power generation panel and the energy storage battery corresponding to the photovoltaic power generation panel, and each inverter is also connected to the input end of the power distribution module; A metering module, the metering module is used to detect the power supply voltage of the power distribution module; A main controller is connected to the metering module and is used to control the energy storage module to supply power to the power distribution module when the power supply voltage is lower than a first voltage threshold.

2. The outdoor box with integrated source, grid, load and storage according to claim 1, It is characterized in that The metering module includes at least one current transformer arranged inside the power distribution module and a meter coupled to the current transformer, and the meter is communicatively connected to the main controller.

3. The outdoor box with integrated source, grid, load and storage according to claim 1, It is characterized in that The shell includes a first installation chamber and a second installation chamber which are arranged in sequence. The energy storage module is accommodated in the first installation chamber, the inverter is accommodated in the second installation chamber, the power distribution module includes a low-voltage power distribution cabinet accommodated in the second installation chamber, and an isolation plate is arranged between the first installation chamber and the second installation chamber, and the isolation plate is made of fireproof material.

4. The outdoor box with integrated source, grid, load and storage according to claim 1, It is characterized in that A three-pole molded case circuit breaker is connected between the inverter and the power distribution module.

5. The outdoor box with integrated source, grid, load and storage according to claim 1, It is characterized in that The output end of the power distribution module is provided with a four-pole molded case circuit breaker.

6. The outdoor box with integrated source, grid, load and storage according to claim 1, It is characterized in that The input end of the power distribution module is provided with a residual current protector.

7. The outdoor box with integrated source, grid, load and storage according to claim 1, It is characterized in that The input end of the power distribution module is provided with an isolating switch, which is used to isolate the first power supply branch and the second power supply branch of the input end of the power distribution module. The first power supply branch is the branch between the input end of the power distribution module and the inverter, and the second power supply branch is the branch for connecting the input end of the power distribution module to the mains.

8. The outdoor box with integrated source, grid, load and storage according to claim 1, Features The top cover covers the top of the shell and then extends outward to form an epitaxial area.

9. The outdoor box with integrated source, grid, load and storage according to claim 1, It is characterized in that The outer side wall of the housing is coated with a waterproof plastic coating.

10. The outdoor box with integrated source, grid, load and storage according to claim 1, It is characterized in that The housing is provided with a plurality of wire inlet holes and wire outlet holes, and the inner ring of each of the wire inlet holes and the wire outlet holes is provided with a rubber sealing ring.

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