Light-storage integrated module and integrated power supply system

Abstract

The utility model provides a light storage integrated module and an integrated power supply system, comprising a housing, the interior of which is divided into a first chamber and a second chamber which are arranged left and right; the top of the second chamber is provided with a wiring window. The DC / DC module and the photovoltaic module are arranged in the first cavity; the power distribution module, the photovoltaic wiring port, the bus positive wiring port, the bus negative wiring port, the battery positive wiring port and the battery negative wiring port are arranged in the front space of the second cavity; and the comprehensive energy control module is arranged above / below the first chamber and / or the second chamber. The light-storage integrated module and the integrated power supply system are high in power density and high in field module assembly and wiring efficiency; wiring is convenient, and maintenance is convenient; and the functions are complete and the integration level is high.

Description

Technical Field

[0001] The utility model relates to the field of power supplies, in particular to a direct current coupled photovoltaic storage integrated module and a comprehensive power supply system. Background Art

[0002] With the popularization and promotion of new energy, integrated photovoltaic and energy storage modules are increasingly being used in the field of power supply; integrated photovoltaic and energy storage modules refer to an integrated solution that combines photovoltaic power generation systems with energy storage systems. This module realizes the integration of solar photovoltaic power generation and energy storage through integrated design. Photovoltaics and energy storage are matched, and the excess photovoltaic power generation energy over load consumption can be absorbed by energy storage batteries, thereby expanding the construction capacity of photovoltaics and increasing the proportion of green electricity. The application scenarios of integrated photovoltaic and energy storage modules are very wide. They can be used for energy supply in households, businesses, industries and remote areas. Especially in areas with unstable power grids or lack of power infrastructure, integrated photovoltaic and energy storage modules provide a reliable, clean and sustainable energy solution. In addition, it can also be combined with electric vehicle charging stations to form an integrated photovoltaic storage and charging system to further improve energy utilization efficiency.

[0003] The photovoltaic-storage integrated module can be divided into an AC-coupled photovoltaic-storage integrated system and a DC-coupled photovoltaic-storage integrated system. Compared with the AC-coupled photovoltaic-storage integrated system, the DC-coupled photovoltaic-storage integrated system eliminates the DC / AC inverter. At the same time, photovoltaic power generation also eliminates the energy loss caused by the DC / AC inverter and AC / DC rectifier, thereby improving the system's conversion efficiency.

[0004] The DC-coupled photovoltaic and energy storage system at least includes a photovoltaic module MPPT unit and a bidirectional DC / DC unit. On-site installation involves on-site photovoltaic wiring of the MPPT unit, on-site battery wiring of the bidirectional DC / DC unit, and wiring between the MPPT unit, bidirectional DC / DC and DC bus, etc. On-site wiring is relatively complicated and time-consuming. How to reasonably layout and integrate the photovoltaic and energy storage system into a module, thereby increasing the module power density and improving the efficiency of on-site module assembly and wiring has become one of the problems that technicians in this field need to solve.

[0005] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the utility model and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because these solutions are described in the background technology section of the utility model. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a photovoltaic-storage integrated module and an integrated power supply system to solve the problems of complex and time-consuming on-site wiring of the DC-coupled photovoltaic-storage integrated system in the prior art.

[0007] In order to achieve the above-mentioned object and other related objects, the utility model provides a photovoltaic storage integrated module, which at least comprises:

[0008] Shell, power distribution module, bus positive connection port, bus negative connection port, battery positive connection port, battery negative connection port, integrated energy control module, DC / DC module, M groups of photovoltaic connection ports and M groups of photovoltaic modules, where M is a natural number greater than or equal to 1;

[0009] The longitudinal partition in the shell divides the inside of the shell into a first chamber and a second chamber arranged on the left and right; a wiring window is arranged on the top shell of the second chamber close to the front side of the shell;

[0010] The DC / DC module and the photovoltaic module are disposed in the first chamber and face the front of the housing;

[0011] The power distribution module, the photovoltaic connection port, the busbar positive connection port, the busbar negative connection port, the battery positive connection port, and the battery negative connection port are arranged in the front space of the second chamber, all facing the front of the shell; and the photovoltaic connection port, the busbar positive connection port, the busbar negative connection port, the battery positive connection port, and the battery negative connection port are located in the connection window;

[0012] The bus positive connection port is electrically connected to the positive pole of the input end of the DC / DC module and the positive pole of the output end of the rear end of each photovoltaic module, and the bus negative connection port is electrically connected to the negative pole of the input end of the DC / DC module and the negative pole of the output end of the rear end of each photovoltaic module; the power distribution module is connected between the bus positive connection port and the positive pole of the input end of the DC / DC module, or between the bus negative connection port and the negative pole of the input end of the DC / DC module;

[0013] The battery positive connection port is electrically connected to the positive pole of the corresponding output terminal of the DC / DC module, and the battery negative connection port is electrically connected to the negative pole of the corresponding output terminal of the DC / DC module; the power distribution module is also connected between the battery positive connection port and the positive pole of the output terminal of the DC / DC module, or between the battery negative connection port and the negative pole of the output terminal of the DC / DC module;

[0014] Each photovoltaic wiring port corresponds to each photovoltaic module one by one, and is electrically connected to the input terminal at the rear end of the corresponding photovoltaic module;

[0015] The integrated energy control module is disposed above the first chamber and / or the second chamber, or below the first chamber and / or the second chamber to control the modules inside the integrated photovoltaic and energy storage module.

[0016] Optionally, the wiring ports are arranged in a stepped manner, and the closer the wiring port is to the front of the shell, the lower its position is.

[0017] More optionally, the bus positive wiring port and the bus negative wiring port are set as wiring terminals; the battery wiring port led out through the distribution module is implemented based on the input end of the distribution module; and the battery wiring port directly connected to the output end of the DC / DC module is set as a wiring bank.

[0018] Optionally, the input end of the DC / DC module is arranged at the back of the module itself, and the output end of the DC / DC module is arranged at the front or back of the module itself.

[0019] Optionally, the photovoltaic and storage integrated module further includes a step-down module, a current sampling device and a DC meter;

[0020] The step-down module is arranged in the rear space of the second chamber, and the input end is electrically connected to the DC bus;

[0021] The DC meter is disposed in the front space of the second chamber and obtains electrical energy from the step-down module;

[0022] The current sampling device is arranged in the rear space of the second chamber, samples the current flowing through the DC bus, and transmits the sampling signal to the DC meter.

[0023] More optionally, the current sampling device is implemented based on a shunt or a Hall sensor.

[0024] More optionally, the integrated photovoltaic and storage module also includes a remote monitoring module, which is arranged in the rear space of the second chamber, obtains electrical energy from the step-down module, and is electrically connected to the integrated energy control module, the DC meter or each photovoltaic module.

[0025] More optionally, the integrated photovoltaic and energy storage module further includes a display screen, which is embedded in the cabinet door of the second chamber and is electrically connected to the integrated energy control module.

[0026] More optionally, the DC-DC module includes at least two DC conversion units, and input ends of the DC conversion units are connected in parallel.

[0027] Optionally, the integrated photovoltaic and storage module also includes M groups of photovoltaic lightning protection modules corresponding to each photovoltaic module one by one, one end of each photovoltaic lightning protection module is connected to the input end of the corresponding photovoltaic module, and the other end is grounded; the photovoltaic lightning protection module is arranged in the front space of the second chamber and is located in the wiring window; or the photovoltaic lightning protection module is arranged in the rear space of the second chamber.

[0028] More optionally, the integrated photovoltaic and storage module also includes M groups of photovoltaic wiring buses corresponding to each photovoltaic module one by one, and the photovoltaic modules and photovoltaic lightning protection modules are connected to the photovoltaic wiring ports via the corresponding photovoltaic wiring buses; each photovoltaic wiring bus is located in the rear space of the second chamber.

[0029] Optionally, the integrated photovoltaic and energy storage module further includes a capacitor module, which is located in the rear space of the second chamber and connected to the output end of the corresponding photovoltaic module.

[0030] In order to achieve the above-mentioned purpose and other related purposes, the utility model also provides a comprehensive power supply system, which at least includes:

[0031] Power conversion module, photovoltaic modules, several battery modules and the above-mentioned photovoltaic storage integrated module;

[0032] The positive electrode of the output end of the power conversion module is electrically connected to the bus positive connection port of the photovoltaic and storage integrated module, and the negative electrode of the output end is electrically connected to the bus negative connection port of the photovoltaic and storage integrated module;

[0033] Each of the battery modules is connected to a corresponding battery positive connection port and a battery negative connection port in the photovoltaic storage integrated module;

[0034] The photovoltaic assembly is connected to the photovoltaic connection port of the photovoltaic storage integrated module;

[0035] The photovoltaic-storage integrated module controls the charging and discharging of each of the battery modules, and controls the photovoltaic components to supply power to the load.

[0036] Optionally, a remote monitoring module is further provided in the integrated photovoltaic and storage module; the integrated power supply system further comprises a host computer, which communicates with the remote monitoring module and realizes remote monitoring.

[0037] As described above, the photovoltaic storage integrated module and integrated power supply system of the utility model have the following beneficial effects:

[0038] 1. The photovoltaic storage integrated module and integrated power supply system of the utility model assembles the separate unit modules in a unified manner and makes full use of the cabinet space. The components that need to be operated or replaced by the user are arranged in the front space, and the components that do not need to be operated or replaced by the user are arranged in the rear space, thereby improving the module power density and the on-site module assembly and wiring efficiency.

[0039] 2. The photovoltaic storage integrated module and integrated power supply system of the present invention arranges each wiring port in the front space of the second chamber, and realizes wiring with the outside through a wiring window, thereby simplifying wiring complexity and facilitating maintenance.

[0040] 3. The positive battery connection port and negative battery connection port of the integrated photovoltaic and storage module and the integrated power supply system of the utility model use a terminal block to realize the switching of internal circuits, which can further simplify the wiring complexity and facilitate maintenance.

[0041] 4. The photovoltaic storage integrated module and integrated power supply system of the utility model add expansion modules such as current sampling device, DC meter, bypass module, remote monitoring module, etc., with complete functions and high integration. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 Shown is a front view structural schematic diagram of the integrated light-storage module of the present invention.

[0043] Figure 2 Shown is a top view structural schematic diagram of the integrated light-storage module of the present invention.

[0044] Figure 3 Shown is a front view structural schematic diagram of the integrated optical storage module of the present invention with the front panel removed.

[0045] Figure 4 Shown is a schematic diagram of the top view of the structure of the integrated light-storage module of the present invention with the top panel removed.

[0046] Figure 5 Shown is a three-dimensional structural schematic diagram of the integrated light-storage module of the present invention.

[0047] Figure 6 Shown is a schematic diagram of the circuit structure of the integrated optical-storage module of the present invention.

[0048] Figure 7 Shown is a schematic diagram of the circuit structure of the comprehensive power supply system of the utility model.

[0049] Component number description

[0050] 1. Optical-storage integrated module

[0051] 10 Housing

[0052] 101 First Chamber

[0053] 102 Second Chamber

[0054] 10a Longitudinal partition

[0055] 10b Wiring Window

[0056] 10c Cabinet Door

[0057] 11 Power distribution module

[0058] 12a Busbar positive connection port

[0059] 12b Busbar negative connection port

[0060] 12c Battery positive connection port

[0061] 12d Battery negative connection port

[0062] 12e PV connection port

[0063] 12f Busbar positive busbar

[0064] 12g busbar negative busbar

[0065] 12h busbar lightning protection module

[0066] 13 Integrated Energy Control Module

[0067] 14 DC / DC Modules

[0068] 15 Photovoltaic modules

[0069] 15a Photovoltaic control module

[0070] 15b Photovoltaic lightning protection module

[0071] 16 Buck Module

[0072] 17a Current sampling device

[0073] 17b DC ammeter

[0074] 18 Remote monitoring module

[0075] 19 Display

[0076] 2 Power conversion module

[0077] 3 Photovoltaic panels

[0078] 4 Battery Module

[0079] 5 Photovoltaic lightning protection combiner box

[0080] 6 Load DETAILED DESCRIPTION

[0081] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0082] See also Figure 1 to Figure 7 It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the utility model, and the drawings only show the components related to the utility model rather than the number, shape and size of the components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0083] like Figure 1 to Figure 7 As shown, the utility model provides a light-storage integrated module 1, comprising:

[0084] Shell 10, power distribution module 11, bus positive connection port 12a, bus negative connection port 12b, battery positive connection port 12c, battery negative connection port 12d, integrated energy control module 13, DC / DC module 14, M groups of photovoltaic connection ports 12e and M groups of photovoltaic modules 15, wherein M is a natural number greater than or equal to 1.

[0085] like Figure 1 to Figure 5 As shown, the shell 10 is used to integrate the unit modules in the integrated optical storage module; the longitudinal partition 10a in the shell 10 divides the interior of the shell 10 into a first chamber 101 and a second chamber 102 arranged on the left and right; a wiring window 10b is arranged on the top shell of the second chamber 102 close to the front side of the shell.

[0086] Specifically, in this embodiment, the housing 10 is a rectangular parallelepiped structure, including six panels, namely, a front panel (ie, a cabinet door 10c, Figure 1 ), rear panel, left panel, right panel, top panel and bottom panel; Figure 2 As shown, a wiring window 10b is provided on the top panel near the front panel. In actual use, the shape of the housing 10 can also be set according to actual needs, and is not limited to this embodiment.

[0087] It should be noted that in the present invention, the longitudinal partition 10a does not completely separate the internal space of the shell 10, and it is sufficient to roughly distinguish two spaces distributed on the left and right. As an example, the lower end of the longitudinal partition 10a is set on the bottom panel inside the shell 10, and there is a preset distance between the upper end and the top panel inside the shell 10, and the preset distance is used to set the integrated energy control module 13; in actual use, the longitudinal partition 10a can also be set on the top panel, with a preset distance from the bottom panel, and at the same time, the integrated energy control module 13 is set in the lower part of the shell 10, which will not be repeated here.

[0088] like Figure 3 As shown, the DC / DC module 14 and the photovoltaic module 15 are disposed in the first chamber 101 and face the front of the housing 10 .

[0089] Specifically, in this embodiment, the DC / DC module 14 is disposed in the lower space of the first chamber 101; the photovoltaic module 15 is disposed in the upper space of the first chamber 101. In this example, the number of photovoltaic modules 15 is set to 2 groups, and the 2 groups of photovoltaic modules 15 are disposed side by side on the DC / DC module 14. In actual use, the number of photovoltaic modules 15 can be configured as needed, and is not limited to this example. The positions of the DC / DC module 14 and the photovoltaic module 15 can also be interchanged, which will not be described one by one here.

[0090] Specifically, the input end of the DC / DC module 14 is arranged at the back of the module itself, and the output end of the DC / DC module 14 is arranged at the front or back of the module itself. In this example, the input end and the output end of the DC / DC module 14 are both arranged at the back to reduce the wiring in the front and achieve the effect of hot plugging. In this embodiment, the DC / DC module 14 includes at least two DC conversion units; the input end of each DC conversion unit is connected in parallel, and the output end can be connected to a group of battery modules respectively or connected in parallel to the same group of battery modules, which is set according to actual use needs.

[0091] Specifically, the input and output ends of the photovoltaic module 15 are both arranged at the rear of the module itself, so as to reduce the wiring in the front and achieve the effect of hot plugging.

[0092] like Figure 3 As shown, the integrated energy control module 13 is arranged above the first chamber 101 and / or the second chamber 102, or below the first chamber 101 and / or the second chamber 102, to control the modules inside the integrated photovoltaic and storage module 1; and is used to optimize the operation of the entire integrated photovoltaic and storage module 1, including energy distribution, scheduling and storage strategies, so as to maximize energy utilization and optimize costs.

[0093] Specifically, in this embodiment, the integrated energy control module 13 is disposed above the first chamber 101 and the second chamber 102 and is located in the front space of the chamber. The modules controlled by the integrated energy control module 13 include but are not limited to the DC / DC module 14, which can be configured as needed and are not described in detail here.

[0094] As another implementation of the present invention, the photovoltaic storage integrated module 1 further includes a photovoltaic control module 15a, which is disposed in the rear space of the second chamber 102. Figure 6 As shown, one end of the photovoltaic control module 15a is connected to the integrated energy control module 13 ( Figure 6 The other end is connected to and controls each photovoltaic module 15; the control signal output by the integrated energy control module 13 is summarized and transmitted to each photovoltaic module 15, and the information of each photovoltaic module 15 is summarized and transmitted to the integrated energy control module 13.

[0095] like Figure 3 As shown, the power distribution module 11, the busbar positive connection port 12a, the busbar negative connection port 12b, the battery positive connection port 12c, the battery negative connection port 12d and the photovoltaic connection port 12e are arranged in the front space of the second chamber 102, all facing the front of the shell 10; and the busbar positive connection port 12a, the busbar negative connection port 12b, the battery positive connection port 12c, the battery negative connection port 12d and the photovoltaic connection port 12e are located in the connection window 10b.

[0096] Specifically, Figure 6As shown, the bus positive connection port 12a is electrically connected to the positive pole of the input end of the DC / DC module 14 and the positive pole of the output end of each photovoltaic module 15, and the bus negative connection port 12b is electrically connected to the negative pole of the input end of the DC / DC module 14 and the negative pole of the output end of each photovoltaic module 15; the distribution module 11 is connected between the bus positive connection port 12a and the positive pole of the input end of the DC / DC module 14, or connected between the bus negative connection port 12b and the negative pole of the input end of the DC / DC module 14; in this example, the distribution module 11 is connected between the bus negative connection port 12b and the negative pole of the input end of the DC / DC module 14. The battery positive connection port 12c is electrically connected to the positive pole of the corresponding output terminal of the DC / DC module 14, and the battery negative connection port 12d is electrically connected to the negative pole of the corresponding output terminal of the DC / DC module 14; the power distribution module 11 is also connected between the battery positive connection port 12c and the positive pole of the output terminal of the DC / DC module 14, or between the battery negative connection port 12d and the negative pole of the output terminal of the DC / DC module 14; in this example, the power distribution module 11 is connected between the battery negative connection port 12d and the negative pole of the output terminal of the DC / DC module 14. Each photovoltaic connection port 12e corresponds to each photovoltaic module 15 one by one, and is electrically connected to the input terminal of the corresponding photovoltaic module 15 (the positive pole and the negative pole of the input terminal of each photovoltaic module 15 are respectively connected to the corresponding photovoltaic connection port 12e).

[0097] Specifically, in this embodiment, the bus positive connection port 12a is electrically connected to the internal devices of the photovoltaic and energy storage integrated module 1 through the bus positive bus 12f, and the bus negative connection port 12b is electrically connected to the internal devices of the photovoltaic and energy storage integrated module 1 through the bus negative bus 12g; the connection is achieved through the bus, which simplifies the complexity of wiring.

[0098] Specifically, in this embodiment, the bus positive connection port 12a and the bus negative connection port 12b are implemented by wiring terminals; the battery connection port (in this example, the battery negative connection port 12d) directly connected to the output end of the DC / DC module 14 is implemented by a wiring bar (copper bar); the battery connection port (in this example, the battery positive connection port 12c) led out through the power distribution module is implemented based on the input port of the power distribution module 11, that is, the external battery positive electrode is directly electrically connected to the output end of the internal DC / DC module 14 through the power distribution module 11 through a wire. In actual use, each port can be configured as a corresponding type based on actual needs, as long as it can realize the introduction of external wiring, and it will not be repeated here.

[0099] Specifically, in this embodiment, the wiring ports are arranged in a stepped manner, and the closer the wiring port is to the front of the housing, the lower the position is, so as to facilitate wiring from the wiring window 10b. Figure 3As shown, the bus positive connection port 12a and the bus negative connection port 12b are arranged side by side (in actual use, the two can be arranged up and down), and are respectively connected to the external DC bus positive terminal and the DC bus negative terminal through the wiring window 10b; the battery negative connection port 12d and the photovoltaic connection port 12e are arranged side by side (in actual use, the two can be arranged up and down), and are respectively connected to the external battery negative electrode and the output end of the photovoltaic module through the wiring window 10b; and the distribution module 11 corresponding to the battery positive connection port 12c is located in the front and lower part of the battery negative connection port 12d and the photovoltaic connection port 12e side by side structure, and the battery negative connection port 12d and the photovoltaic connection port 12e side by side structure are located in the front and lower part of the bus positive connection port 12a and the bus negative connection port 12b side by side structure. In actual use, the position of each port can be adjusted as needed, so that each port can be exposed in the wiring window 10b, which is convenient for wiring, and is not limited to this embodiment.

[0100] Specifically, in this embodiment, the power distribution module 11 is a circuit breaker or a fuse. In actual use, any device that can disconnect the circuit when the current is too large to achieve a protection function is applicable, including but not limited to air-type and ceramic-type devices, which are not listed here one by one.

[0101] As another implementation of the present invention, the photovoltaic storage integrated module 1 further includes a voltage reduction module 16, a current sampling device 17a and a DC meter 17b. Figure 5 As shown, the step-down module 16 is arranged in the rear space of the second chamber 102, and the input end is electrically connected to the DC bus, and is used to step down the bus voltage (as an example, converting the 48V DC voltage into a 24V DC voltage); in this example, the positive input end of the step-down module 16 is connected to the bus positive wiring port 12a, and the negative input end is connected to the bus negative wiring port 12b via the power distribution module 11. Figure 3 As shown, the DC meter 17b is disposed in the front space of the second chamber 102 to obtain electrical energy from the step-down module 16; as an example, the DC meter 17b is also used to display the voltage value sampled by the step-down module 16. Figure 4 As shown, the current sampling device 17a is arranged in the rear space of the second chamber 102, samples the current flowing through the DC bus, and transmits the sampling signal to the DC meter 17b to display the sampled current information; as an example, the current sampling device 17a is implemented based on a shunt or a Hall sensor, and any device that can implement current sampling is applicable to the utility model. In addition, the buck module 16 also supplies power to the integrated energy control module 13. If the buck module 16 is not configured, the integrated energy control module 13 obtains electrical energy from the DC bus; the DC meter 17b is also connected to the integrated energy control module 13 to transmit voltage and current information to the integrated energy control module 13.

[0102] Furthermore, as another implementation of the utility model, the photovoltaic storage integrated module 1 also includes a remote monitoring module 18, which is arranged in the rear space of the second chamber 102, obtains electric energy from the step-down module 16, and is electrically connected to the integrated energy control module 13, the DC meter 17b and / or each photovoltaic module 15; it is used to provide real-time monitoring and data recording of the operating status of the photovoltaic storage integrated module 1. In this example, the remote monitoring module 18 communicates with the external remote host computer APP, transmits the information of the DC meter 17b, and realizes remote monitoring of each photovoltaic module 15, which is convenient for operation and maintenance personnel to perform remote monitoring and management.

[0103] Furthermore, as another implementation of the present invention, the integrated optical storage module 1 further includes a display screen 19, such as Figure 1 As shown, the display screen 19 is embedded in the cabinet door of the second chamber 102. Figure 6 As shown, the display screen 19 is electrically connected to the integrated energy control module 13 and is used to display status information of the integrated photovoltaic and energy storage module 1 .

[0104] As another implementation of the present invention, the photovoltaic storage integrated module 1 further includes M groups of photovoltaic lightning protection modules 15b corresponding to each photovoltaic module 15. Figure 6 As shown, the two ends of each photovoltaic lightning protection module 15b are respectively connected to the positive input terminal and the negative input terminal of the corresponding photovoltaic module 15, and one of the positive input terminal and the negative input terminal of each photovoltaic module 15 is grounded (cabinet grounding bar PE). Figure 3 As shown, the photovoltaic lightning protection module 15b is arranged in the front space of the second chamber 102 and is located in the wiring window 10b; in actual use, the photovoltaic lightning protection module 15b can also be arranged in the rear space of the second chamber 102. Further, in order to facilitate wiring, the photovoltaic storage integrated module 1 also includes M groups of photovoltaic wiring buses (not shown in the figure) corresponding to each photovoltaic module 15, and the photovoltaic modules 15 and the photovoltaic lightning protection modules 15b are connected to the photovoltaic wiring port 12e via the corresponding photovoltaic wiring buses; each photovoltaic wiring bus is located in the rear space of the second chamber 102. Further, the photovoltaic storage integrated module 1 also includes a capacitor module (not shown in the figure), which is located in the rear space of the second chamber 102 and connected to the output end of the corresponding photovoltaic module 15, and is used to reduce the fluctuation of solar energy and the fluctuation of the bus voltage caused by the photovoltaic control module 15a.

[0105] As another implementation of the present invention, the integrated photovoltaic and storage module 1 further includes a busbar lightning protection module 12h, such as Figure 4 and Figure 5As shown, the busbar lightning protection module 12h is arranged in the rear space of the second chamber 102, one end of which is connected to the busbar negative busbar 12g, and the other end is connected to the busbar positive busbar 12f (and connected to the cabinet grounding bar PE); it is used to protect the devices connected to the busbar from lightning damage. In actual use, the busbar lightning protection module 12h can also be arranged in the front space of the second chamber 102, which will not be described in detail here.

[0106] like Figure 7 The utility model also provides a comprehensive power supply system, comprising:

[0107] A photovoltaic and energy storage integrated module 1, a power conversion module 2, a photovoltaic component 3 and a plurality of battery modules 4.

[0108] like Figure 7 As shown, the positive output terminal of the power conversion module 2 is electrically connected to the bus positive connection port 12a of the photovoltaic storage integrated module 2, and the negative output terminal is electrically connected to the bus negative connection port 12b of the photovoltaic storage integrated module 1. The power conversion module 2 can be a DC to DC module or an AC to DC module; in this example, the power conversion module 2 uses an AC / DC module to convert the AC power supply AC220V into a DC power supply and merge it into the DC bus, and can also convert the DC power generated by the photovoltaic module 3 into AC power for use by the load or to be incorporated into the power grid.

[0109] like Figure 7 As shown, each battery module 4 is connected to the corresponding battery positive wiring port 12c and battery negative wiring port 12b in the photovoltaic storage integrated module 1; it is used to store the electric energy generated by the photovoltaic assembly 3, and usually adopts a lithium-ion battery, a lead-acid battery or other types of rechargeable batteries. The battery module 4 can store excess electric energy when the solar power generation exceeds the immediate demand, and release electric energy when the demand is at a peak or the light is insufficient. The number of battery modules 4 is greater than or equal to 1 and can be configured as needed. Each battery module 4 is connected one-to-one with each DC conversion unit in the DC / DC module 14 (in the photovoltaic storage integrated module 1), or one battery module 4 is connected in parallel with the output ends of two or more DC conversion units, which will not be described one by one here.

[0110] like Figure 7 As shown, the photovoltaic assembly 3 is connected to the photovoltaic connection port 12e of the photovoltaic storage integrated module 1, for converting solar energy into electrical energy and providing it to the photovoltaic storage integrated module 1. As an example, a photovoltaic lightning protection junction box 5 is also connected in series between the photovoltaic assembly 3 and the photovoltaic connection terminal 12e.

[0111] like Figure 7 As shown, the integrated photovoltaic and energy storage module 1 controls the charging and discharging of each battery module 4 , and controls each photovoltaic component 3 to supply power to the load 6 .

[0112] As another implementation of the present invention, when a remote monitoring module 18 is provided in the integrated photovoltaic and storage module 1, the integrated power supply system further includes a host computer (not shown in the figure), which communicates with the remote monitoring module 18 to perform remote monitoring.

[0113] In summary, the utility model provides a photovoltaic storage integrated module and an integrated power supply system, including: a shell, a power distribution module, a bus positive wiring port, a bus negative wiring port, a battery positive wiring port, a battery negative wiring port, an integrated energy control module, a DC / DC module, M groups of photovoltaic wiring ports and M groups of photovoltaic modules, wherein M is a natural number greater than or equal to 1; the longitudinal partition in the shell divides the interior of the shell into a first chamber and a second chamber arranged on the left and right; a wiring window is arranged on the top shell of the second chamber close to the front side of the shell; the DC / DC module and the photovoltaic module are arranged in the first chamber and face the front of the shell; the power distribution module, the photovoltaic wiring port, the bus positive wiring port, the bus negative wiring port, the battery positive wiring port, and the battery negative wiring port are arranged in the front space of the second chamber, all facing the front of the shell; and the photovoltaic wiring port, the bus positive wiring port, the bus negative wiring port, the battery positive wiring port and the battery negative wiring port are located in the wiring window; the bus positive wiring port and the DC / DC The positive pole of the input end of the module and the positive pole of the output end at the rear end of each photovoltaic module are electrically connected, and the negative wiring port of the busbar is electrically connected to the negative pole of the input end of the DC / DC module and the negative pole of the output end at the rear end of each photovoltaic module; the power distribution module is connected between the positive wiring port of the busbar and the positive pole of the input end of the DC / DC module, or between the negative wiring port of the busbar and the negative pole of the input end of the DC / DC module; the positive wiring port of the battery is electrically connected to the positive pole of the corresponding output end of the DC / DC module, and the negative wiring port of the battery is electrically connected to the negative pole of the corresponding output end of the DC / DC module; the power distribution module is also connected between the positive wiring port of the battery and the positive pole of the output end of the DC / DC module, or between the negative wiring port of the battery and the negative pole of the output end of the DC / DC module; each photovoltaic wiring port corresponds to each photovoltaic module one by one, and is electrically connected to the input end of the rear end of the corresponding photovoltaic module; the integrated energy control module is arranged above the first chamber and / or the second chamber, or below the first chamber and / or the second chamber, to control the modules inside the integrated photovoltaic storage module. The utility model has high power density, high efficiency of on-site module assembly and wiring, simplified wiring complexity, easy maintenance, and complete functions and high integration. Therefore, the utility model effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0114] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A photovoltaic and storage integrated module, characterized in that: The optical-storage integrated module at least comprises: Shell, power distribution module, bus positive connection port, bus negative connection port, battery positive connection port, battery negative connection port, integrated energy control module, DC / DC module, M groups of photovoltaic connection ports and M groups of photovoltaic modules, where M is a natural number greater than or equal to 1; The longitudinal partition in the shell divides the inside of the shell into a first chamber and a second chamber arranged on the left and right; a wiring window is arranged on the top shell of the second chamber close to the front side of the shell; The DC / DC module and the photovoltaic module are disposed in the first chamber and face the front of the housing; The power distribution module, the photovoltaic connection port, the busbar positive connection port, the busbar negative connection port, the battery positive connection port, and the battery negative connection port are arranged in the front space of the second chamber, all facing the front of the shell; and the photovoltaic connection port, the busbar positive connection port, the busbar negative connection port, the battery positive connection port, and the battery negative connection port are located in the connection window; The bus positive connection port is electrically connected to the positive pole of the input end of the DC / DC module and the positive pole of the output end of the rear end of each photovoltaic module, and the bus negative connection port is electrically connected to the negative pole of the input end of the DC / DC module and the negative pole of the output end of the rear end of each photovoltaic module; the power distribution module is connected between the bus positive connection port and the positive pole of the input end of the DC / DC module, or between the bus negative connection port and the negative pole of the input end of the DC / DC module; The battery positive connection port is electrically connected to the positive pole of the corresponding output terminal of the DC / DC module, and the battery negative connection port is electrically connected to the negative pole of the corresponding output terminal of the DC / DC module; the power distribution module is also connected between the battery positive connection port and the positive pole of the output terminal of the DC / DC module, or between the battery negative connection port and the negative pole of the output terminal of the DC / DC module; Each photovoltaic wiring port corresponds to each photovoltaic module one by one, and is electrically connected to the input terminal at the rear end of the corresponding photovoltaic module; The integrated energy control module is disposed above the first chamber and / or the second chamber, or below the first chamber and / or the second chamber to control the modules inside the integrated photovoltaic and energy storage module.

2. The integrated optical-storage module according to claim 1, characterized in that: The wiring ports are arranged in a stepped manner, and the closer the wiring port is to the front of the shell, the lower its position is.

3. The integrated optical-storage module according to claim 2, characterized in that: The bus positive connection port and the bus negative connection port are set as connection terminals; the battery connection port led out through the distribution module is realized based on the input end of the distribution module; the battery connection port directly connected to the output end of the DC / DC module is set as a terminal block.

4. The integrated optical-storage module according to claim 1, characterized in that: The input end of the DC / DC module is arranged at the back of the module itself, and the output end of the DC / DC module is arranged at the front or back of the module itself.

5. The integrated optical-storage module according to claim 1, characterized in that: The photovoltaic and storage integrated module also includes a step-down module, a current sampling device and a DC meter; The step-down module is arranged in the rear space of the second chamber, and the input end is electrically connected to the DC bus; The DC meter is disposed in the front space of the second chamber and obtains electrical energy from the step-down module; The current sampling device is arranged in the rear space of the second chamber, samples the current flowing through the DC bus, and transmits the sampling signal to the DC meter.

6. The integrated optical-storage module according to claim 5, characterized in that: The current sampling device is implemented based on a shunt or a Hall sensor.

7. The integrated optical-storage module according to claim 5, characterized in that: The integrated photovoltaic and storage module also includes a remote monitoring module, which is arranged in the rear space of the second chamber, obtains electrical energy from the step-down module, and is electrically connected to the integrated energy control module, the DC meter or each photovoltaic module.

8. The integrated optical-storage module according to any one of claims 1 to 7, characterized in that: The integrated photovoltaic and energy storage module also includes a display screen, which is embedded in the cabinet door of the second chamber and is electrically connected to the integrated energy control module.

9. The integrated optical-storage module according to any one of claims 1 to 7, characterized in that: The DC-DC module includes at least two DC conversion units, and the input ends of the DC conversion units are connected in parallel.

10. The integrated photovoltaic and storage module according to claim 1, characterized in that: The integrated photovoltaic and storage module also includes M groups of photovoltaic lightning protection modules corresponding to each photovoltaic module one by one, one end of each photovoltaic lightning protection module is connected to the input end of the corresponding photovoltaic module, and the other end is grounded; the photovoltaic lightning protection module is arranged in the front space of the second chamber and is located in the wiring window; or the photovoltaic lightning protection module is arranged in the rear space of the second chamber.

11. The integrated photovoltaic and storage module according to claim 10, characterized in that: The integrated photovoltaic and storage module also includes M groups of photovoltaic wiring buses corresponding to each photovoltaic module one by one. The photovoltaic modules and photovoltaic lightning protection modules are connected to the photovoltaic wiring ports via the corresponding photovoltaic wiring buses; each photovoltaic wiring bus is located in the rear space of the second chamber.

12. The integrated optical-storage module according to claim 1, characterized in that: The integrated photovoltaic and energy storage module also includes a capacitor module, which is located in the rear space of the second chamber and connected to the output end of the corresponding photovoltaic module.

13. An integrated power supply system, characterized in that: The power supply system at least comprises: A power conversion module, a photovoltaic module, a plurality of battery modules, and a photovoltaic-storage integrated module as claimed in any one of claims 1 to 12; The positive electrode of the output end of the power conversion module is electrically connected to the bus positive connection port of the photovoltaic and storage integrated module, and the negative electrode of the output end is electrically connected to the bus negative connection port of the photovoltaic and storage integrated module; Each of the battery modules is connected to a corresponding battery positive connection port and a battery negative connection port in the photovoltaic storage integrated module; The photovoltaic assembly is connected to the photovoltaic connection port of the photovoltaic storage integrated module; The photovoltaic-storage integrated module controls the charging and discharging of each of the battery modules, and controls the photovoltaic components to supply power to the load.

14. The integrated power supply system according to claim 13, characterized in that: A remote monitoring module is also provided in the integrated photovoltaic and storage module; the integrated power supply system also includes a host computer, which communicates with the remote monitoring module and realizes remote monitoring.

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