Photovoltaic energy storage box

Abstract

The utility model provides a photovoltaic energy storage box. The photovoltaic energy storage box comprises a housing; the power supply module is fixed in the shell; the DC-AC conversion module is fixed in the shell and is electrically connected to the power supply module; the control module is fixed in the shell, and the control module is further electrically connected to the power supply module and the DC-AC conversion module; the charging interface is electrically connected to the power supply module, the charging interface comprises at least one photovoltaic input interface, at least one AC charging interface and at least one DC charging interface, and the photovoltaic input interface is used for being connected with a solar panel; and the output interface is electrically connected to the power supply module, and the output interface comprises an AC output interface. The photovoltaic energy storage box provided by the utility model has multiple charging modes, can charge an alternating current load, has multiple quick charging interfaces, a wireless module and a display function, and can be suitable for multiple indoor and outdoor application scenes.

Description

Technical Field

[0001] The utility model belongs to the technical field of energy storage equipment, and in particular relates to a photovoltaic energy storage box. Background Art

[0002] An energy storage box is a device that is pre-connected to a power source to store electrical energy and then supplies the stored energy to external electrical devices. Energy storage boxes on the market require access to mains electricity to store energy, and some related energy storage boxes have limited functionality and present numerous problems:

[0003] (1) Energy storage boxes have many charging restrictions, making them difficult to use in remote areas or outdoor areas that are not connected to the mains. There are few types of input and output power interfaces, and the interface models are relatively backward, which greatly limits the application scenarios.

[0004] (2) The method for reading the power of the energy storage box is single. The charging and discharging status of the energy storage box can only be checked through the indicator light. The status and charging and discharging information of the energy storage box cannot be accurately obtained, and the user experience is poor. Utility Model Content

[0005] The technical purpose of the present utility model is to provide a photovoltaic energy storage box, aiming to solve at least one problem mentioned in the background technology.

[0006] To solve the above technical problems, the present invention is implemented as follows: a photovoltaic energy storage box, comprising:

[0007] case;

[0008] A power module is fixed in the housing;

[0009] A DC-AC conversion module is fixed in the housing and electrically connected to the power module;

[0010] a control module fixed in the housing, the control module being further electrically connected to the power module and the DC-AC conversion module;

[0011] a charging interface electrically connected to the power module, the charging interface including at least one photovoltaic input interface, at least one AC charging interface, and at least one DC charging interface, wherein the photovoltaic input interface is used to connect to a solar panel;

[0012] An output interface is electrically connected to the power module, and the output interface includes an AC output interface.

[0013] Furthermore, the output interface further includes a plurality of type-c interfaces electrically connected to the power module, and each type-c interface is capable of bidirectional charging and discharging;

[0014] The type-c interface is used to electrically connect to a power adapter so that the power adapter can supply power to the power module; the type-c interface is also used to electrically connect to a device to be charged so that the power module can supply power to the device to be charged.

[0015] Furthermore, the output interface further includes a plurality of USB 3.0 interfaces electrically connected to the power module, and the housing is further provided with a USB switch connected to the USB 3.0 interfaces and the type-c interface;

[0016] The USB switch, the USB 3.0 interface and the type-c interface are arranged on the same side of the shell, and the USB switch is used to control the opening and closing of the USB 3.0 interface and the type-c interface.

[0017] Furthermore, the control module is integrated with a USB fast charging protocol, the USB 3.0 interface is electrically connected to the control module, and the USB 3.0 interface supports the fast charging protocol.

[0018] Furthermore, the output interface also includes a cigarette lighter electrically connected to the power module.

[0019] Furthermore, the photovoltaic energy storage box also includes a wireless module arranged in the shell, the wireless module is electrically connected to the control module, and the wireless module is also used to connect to the external electronic device through signals and transmit battery status information and / or charge and discharge information to the external electronic device.

[0020] Furthermore, the photovoltaic energy storage box also includes a display screen electrically connected to the control module, and the display screen is arranged on any side surface or top surface of the shell, and the display screen is used to display the battery status information and / or charge and discharge information of the power module.

[0021] Furthermore, the photovoltaic energy storage box also includes a fixing frame fixed in the shell, the fixing frame has a receiving space, the power module is received in the receiving space, and the DC-AC conversion module and the control module are respectively fixed on any two side surfaces of the fixing frame.

[0022] Furthermore, the photovoltaic energy storage box also includes a shielding cover fixedly connected to a side surface of the fixing frame, the shielding cover and the fixing frame enclose a shielding space, and the DC-AC conversion module is accommodated in the shielding space.

[0023] Furthermore, the photovoltaic energy storage box also includes an emergency light assembly arranged on the shell, the emergency light assembly includes an LED lamp and an LED switch connected to the power module, the LED lamp and LED switch are arranged on any side of the shell, and the LED switch is used to control the turning on and off of the LED lamp.

[0024] Compared with the existing technology, the photovoltaic energy storage box in this utility model has the following advantages: the energy storage box has multiple charging modes, can input DC power and AC power, and can also be directly connected to solar panels through the photovoltaic input interface; the energy storage box also has multiple output modes. The DC-AC conversion module in the energy storage box converts the DC power stored in the power module into AC power, allowing the energy storage box to charge AC loads through the AC output interface, solving the problem of energy storage boxes in related technologies that can only output DC power. The multiple charging and discharging interfaces of the energy storage box reduce the charging and discharging limitations of the energy storage box, enrich the functions of the energy storage box, and broaden the application scenarios of the energy storage box. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of the energy storage box in the first perspective of the embodiment of the utility model;

[0026] Figure 2 This is a schematic diagram of the overall structure of the energy storage box from a second perspective in an embodiment of the utility model;

[0027] Figure 3 It is an exploded view of the energy storage box in the embodiment of the present utility model.

[0028] In the accompanying drawings, each reference numeral represents:

[0029] 10. Housing; 11. Top plate; 12. Bottom plate; 121. Snap-in slot; 122. First heat sink; 13. First plate; 131. First heat dissipation channel; 14. Second plate; 15. Third plate; 151. Second heat dissipation channel; 16. Fixing bracket; 161. Isolation plate; 162. Battery holder; 1621. Third heat dissipation channel; 1622. Fourth heat dissipation channel; 17. Shielding cover; 171. Second heat sink; 20. Power module; 30. DC-AC conversion module; 41. Photovoltaic input interface; 42. AC charging interface; 43. DC charging interface; 44. Type-C interface; 51. USB 3.0 interface; 52. AC output interface; 53. Cigarette lighter; 60. Wireless module; 61. WiFi indicator light; 70. Display screen; 81. LED light; 82. LED switch; 91. USB switch; 92. DC switch; 100. Control module DETAILED DESCRIPTION

[0030] 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 intended to be used to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing 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 present invention.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0033] Example:

[0034] Due to the numerous charging restrictions of the energy storage box, it is difficult to use it in remote areas or wild areas that are not connected to the mains power. The types of input power and output power interfaces are relatively few, and the interface models are relatively backward, which greatly limits the application scenarios. To solve the above problems, the energy storage box in the utility model adds multiple charging and discharging interfaces and a DC-AC conversion function, which greatly enriches the application scenarios of the energy storage box.

[0035] See also Figures 1 to 3 In this embodiment, a photovoltaic energy storage box includes:

[0036] Housing 10;

[0037] The power module 20 is fixed in the housing 10;

[0038] The DC-AC conversion module 30 is fixed in the housing 10 and electrically connected to the power module 20;

[0039] The control module 100 is fixed in the housing 10 and is also electrically connected to the power module 20 and the DC-AC conversion module 30;

[0040] Charging interface, the charging interface is electrically connected to the power module 20, and the charging interface includes at least one photovoltaic input interface 41, at least one AC charging interface 42, and at least one DC charging interface 43, wherein the photovoltaic input interface 41 is used to connect to the solar panel;

[0041] Output interface, the output interface is electrically connected to the power module 20 , and the output interface includes an AC output interface 52 .

[0042] In this embodiment, the photovoltaic energy storage box has three charging modes: inputting direct current through the DC charging interface 43, inputting alternating current through the AC charging interface 42, and directly connecting to the solar panel through the photovoltaic input interface 41;

[0043] The photovoltaic energy storage box also has various output modes and can output alternating current through the AC output interface 52 .

[0044] The DC-AC conversion module 30 in the photovoltaic energy storage box converts the DC power stored in the power module 20 into AC power, so that the photovoltaic energy storage box charges the AC load through the AC output interface 52, solving the problem in the related art that the photovoltaic energy storage box can only output DC.

[0045] The multiple charging and discharging interfaces of the photovoltaic energy storage box reduce the charging and discharging restrictions of the photovoltaic energy storage box, enrich the functions of the photovoltaic energy storage box, and broaden the application scenarios of the photovoltaic energy storage box.

[0046] In some embodiments, the photovoltaic energy storage box also has multiple output modes.

[0047] The output interface also includes multiple Type-C interfaces 44 electrically connected to the power module 20, and each Type-C interface 44 is capable of bidirectional charging and discharging;

[0048] The type-c interface 44 is used to electrically connect to a power adapter so that the power adapter can supply power to the power module 20; the type-c interface 44 is also used to electrically connect to a device to be charged so that the power module 20 can supply power to the device to be charged.

[0049] The photovoltaic energy storage box has added a type-c interface 44. The type-c interface 44 has good versatility and can support a higher charging rate and power transmission. In this embodiment, the device to be charged is a DC charging device, and the type-c interface 44 can provide a 65W fast charging function for the DC charging device.

[0050] At the same time, the type-c interface 44 in this embodiment supports bidirectional power transmission. It can be connected to a power adapter to charge the power module 20, and can also be connected to a device to be charged to power the device to be charged, solving the defect that traditional photovoltaic energy storage boxes can only transmit power in one direction.

[0051] Furthermore, if Figure 1 As shown, the output interface also includes multiple USB 3.0 interfaces 51 electrically connected to the power module 20, and the housing 10 is also provided with a USB switch 91 connected to the USB 3.0 interface 51 and the type-c interface 44; the USB switch 91, the USB 3.0 interface 51 and the type-c interface 44 are arranged on the same side of the housing 10, and the USB switch 91 is used to control the opening and closing of the USB 3.0 interface 51 and the type-c interface 44.

[0052] The photovoltaic energy storage box also features a USB 3.0 port 51, which supports higher data transfer rates and charging power. A USB switch 91 connects the USB 3.0 port 51 and the Type-C port 44. This allows the user to control the on / off status of the USB 3.0 port 51 and the Type-C port 44, effectively managing the photovoltaic energy storage box's power output. Users can turn the output port on or off as needed, saving energy and extending the life of the power module 20.

[0053] The USB switch 91, the USB 3.0 interface 51 and the Type-C interface 44 are arranged on the same side of the housing 10, making it more convenient for users to connect the device to be charged or the power adapter.

[0054] In addition, the photovoltaic energy storage box also includes a DC switch 92 connected to the DC charging interface 43. The DC charging interface 43 and the DC switch 92 are arranged on the same side of the shell 10. The DC switch 92 is used to control the opening and closing of the DC charging interface 43.

[0055] Furthermore, the control module 100 is integrated with the USB fast charging protocol, the USB 3.0 interface 51 is electrically connected to the control module 100 , and the USB 3.0 interface 51 supports the fast charging protocol.

[0056] The USB fast charging protocol can provide higher power output. The USB 3.0 interface 51 supports the fast charging protocol and is compatible with a wide range of charging devices. The fast charging protocol can be the PD protocol or other types of protocols.

[0057] Furthermore, if Figure 2 As shown, the output interface further includes a cigarette lighter 53 electrically connected to the power module 20 .

[0058] The cigarette lighter 53 can respond quickly and output high current to start a car without electricity, provides a convenient output interface, and increases the use scenarios of the photovoltaic energy storage box.

[0059] Since traditional photovoltaic energy storage boxes have a single method for reading the power level, the charging and discharging status of the photovoltaic energy storage box can only be checked through the indicator light. The status and / or charging and discharging information of the photovoltaic energy storage box cannot be accurately obtained, resulting in a poor user experience.

[0060] The photovoltaic energy storage box in this embodiment has multiple modes for displaying the status and / or charge and discharge information of the photovoltaic energy storage box.

[0061] In this embodiment, the photovoltaic energy storage box also includes a wireless module 60 arranged in the shell 10. The wireless module 60 is electrically connected to the control module 100. The wireless module 60 is also used to connect to the external electronic device through signals and transmit battery status information and / or charge and discharge information to the external electronic device.

[0062] The wireless module 60 can be a Bluetooth module or a WIFI module. Specifically, the wireless module 60 in this embodiment is a WIFI module. Figure 3 As shown, the WIFI module is a wireless transmission PCB board fixed in the housing 10. The wireless transmission PCB board is integrated with a WIFI communication module, which enables the user to wirelessly connect to the photovoltaic energy storage box through an external electronic device such as a mobile phone or tablet, and to instantly view the battery status information and / or charge and discharge information of the photovoltaic energy storage box through the application software in the external electronic device.

[0063] Specifically, the battery status information includes battery voltage information and / or battery current information. The battery voltage information is the current value of the power module 20, which can reflect the power level of the power module 20. The battery current information is the current value when the photovoltaic energy storage box is charging or discharging, which can reflect the charging and discharging rate of the power module 20.

[0064] In other embodiments, the battery status information is not limited to the battery voltage information and the battery current information. After a temperature detection module is added to the photovoltaic energy storage box, the battery status information may also include battery temperature information.

[0065] The battery charge and discharge information includes charge and discharge status information and / or charge and discharge power information. The charge and discharge information refers to whether the power module 20 is currently charging or discharging, and the charge and discharge power information refers to the power of the power module 20 when charging or discharging.

[0066] Users can remotely connect to the photovoltaic energy storage box and view the status and / or charge and discharge information of the photovoltaic energy storage box in real time. This adds the function of remotely monitoring the working status of the photovoltaic energy storage box, solves the problem that the photovoltaic energy storage box cannot be remotely controlled, and provides users with a better user experience.

[0067] In this embodiment, if Figure 1 As shown, the photovoltaic energy storage box also includes a display screen 70 electrically connected to the control module 100. The display screen 70 is arranged on any side surface or top surface of the shell 10. The display screen 70 is used to display the battery status information and / or charge and discharge information of the power module 20.

[0068] The display screen 70 visualizes the working status of the power module 20, allowing the user to promptly understand the operating status of the photovoltaic energy storage box. Since the photovoltaic energy storage box in this embodiment is provided with multiple charging interfaces and output interfaces, the display screen 70 displays the battery status and / or charge and discharge information of the power module 20, which can also facilitate the user to reconfirm whether the charge and discharge operation is accurate, so that the user can make necessary adjustments in a timely manner.

[0069] In this embodiment, if Figure 3 As shown, the photovoltaic energy storage box also includes a fixing frame 16 fixed in the shell 10, and the fixing frame 16 has a receiving space. The power module 20 is received in the receiving space, and the DC-AC conversion module 30 and the control module 100 are respectively fixed on any two side surfaces of the fixing frame 16.

[0070] This configuration facilitates the miniaturization of the photovoltaic energy storage box. The DC-AC converter module 30, control module 100, and power module 20 are the primary heat-generating components within the photovoltaic energy storage box. The mounting bracket 16 cleverly separates these components, facilitating heat dissipation management and extending the box's service life. The mounting bracket 16 can be constructed of aluminum, a material with excellent heat dissipation efficiency, further enhancing the box's heat dissipation capabilities.

[0071] In this embodiment, if Figure 3 As shown, the photovoltaic energy storage box further includes a shielding cover 17 fixedly connected to one side of the fixing frame 16 . The shielding cover 17 and the fixing frame 16 enclose a shielding space, and the DC-AC conversion module 30 is accommodated in the shielding space.

[0072] The shielding cover 17 protects the DC-AC conversion module 30, preventing external environmental substances such as dust and water vapor from entering the DC-AC conversion module 30, reducing the risk of failure of the DC-AC conversion module 30. The shielding cover 17 can also reduce the electromagnetic interference generated by other electronic components on the DC-AC conversion module 30, thereby improving the reliability of the photovoltaic energy storage box.

[0073] In this embodiment, if Figure 1As shown, the photovoltaic energy storage box also includes an emergency light assembly mounted on the housing 10. The emergency light assembly includes an LED light 81 and an LED switch 82 connected to the power module 20. The LED light 81 and the LED switch 82 are mounted on either side of the housing 10. The LED switch 82 is used to control the on and off of the LED light 81. The emergency light assembly can provide emergency lighting and is suitable for outdoor use.

[0074] In addition, if the above functions are expanded in the photovoltaic energy storage box, it is necessary to add a variety of heat-generating electronic components. On the premise of ensuring the miniaturization and lightweight of the photovoltaic energy storage box, how to improve the heat dissipation management of the photovoltaic energy storage box has become an urgent problem that needs to be solved.

[0075] like Figures 1 to 3 As shown, in this embodiment, the shell 10 includes a top plate 11 and a bottom plate 12 arranged opposite to each other, and the side of the shell 10 connects the top plate 11 and the bottom plate 12, wherein the side of the shell 10 includes a first plate 13, a second plate 14 and a third plate 15 connected in sequence.

[0076] A first heat dissipation channel 131 is formed on the first plate 13, and a second heat dissipation channel 151 is formed on the second plate 14;

[0077] The fixing frame 16 includes a battery holder 162 fixed to the bottom plate 12 . The battery holder 162 has two sides facing the second plate 14 and the third plate 15 respectively formed with a third heat dissipation channel 1621 and a fourth heat dissipation channel 1622 . The power module 20 is accommodated in the battery holder 162 .

[0078] In this embodiment, the first heat dissipation channel 131 and the second heat dissipation channel 151 are formed as a uniform array of multiple heat dissipation holes. Since the fourth heat dissipation channel 1622 is arranged opposite to the first heat dissipation channel 131, and the third heat dissipation channel 1621 is arranged opposite to the second heat dissipation channel 151, a smooth heat dissipation channel can be formed from the power module 20 to the outside world.

[0079] Furthermore, if Figure 3 As shown, a snap-in slot 121 is defined on one side of the base plate 12 facing the battery holder 162. The battery holder 162 snaps into the snap-in slot 121. A plurality of first heat sinks 122 protrude from the bottom of the snap-in slot 121 toward the battery holder 162. The power module 20 also dissipates heat through the multiple heat sinks on the base plate 12. The first heat sinks 122 are evenly spaced along a direction.

[0080] Furthermore, if Figure 3As shown, the fixing frame 16 further includes an isolation plate 161 fixed to the top of the battery holder 162. The DC-AC conversion module 30 is disposed on a side of the isolation plate 161 facing away from the battery holder 162. The shielding cover 17 covers the DC-AC conversion module 30. Along the direction of the isolation plate 161 away from the battery holder 162, the projection of the shielding cover 17 partially covers the projection of the DC-AC conversion module 30. A second heat sink 171 is installed between the shielding cover 17 and the DC-AC conversion module 30. The second heat sink 171 is fixed to the isolation plate 161.

[0081] The second heat sink 171 and the isolation plate 161 are made of metal. In the direction from the first plate 13 to the second plate 14 , the projection of the first heat dissipation channel 131 at least partially covers the projection of the DC-AC conversion module 30 .

[0082] Second heat sink 171 can transfer heat from DC-AC converter module 30 to isolation plate 161 and first heat dissipation channel 131, and then exchange the heat to the outside world through first heat dissipation channel 131 and second heat dissipation channel 151. Simultaneously, the DC-AC converter module 30 and power module 20 are compactly assembled, saving internal space in the photovoltaic energy storage box. This maximizes the use of the photovoltaic energy storage box's space while efficiently dissipating heat and providing mounting space for electronic components that perform other functions. Preferably, thermally conductive silicone is coated between second heat sink 171 and isolation plate 161 to accelerate heat transfer from DC-AC converter module 30 to isolation plate 161, thereby accelerating heat dissipation from DC-AC converter module 30.

[0083] Specifically, if Figure 3 As shown, the fixing frame 16 is in the shape of a rectangular parallelepiped, and the side surfaces of the fixing frame 16 are arranged parallel to the side surfaces of the housing 10. The power module 20 is housed in the fixing frame 16. The power module 20 is a lithium battery pack. Compared with lead-acid batteries, lithium batteries have a longer service life and are lighter in weight.

[0084] A control module 100 is secured to the side of the mounting bracket 16 facing the second board 14. This control module 100 serves as the main control PCB, and its surface facing the second board 14 integrates multiple ports. The surface of the second board 14 is equipped with a DC charging port 43, a DC switch 92, a Type-C port 44, a USB 3.0 port 51, and a USB switch 91. This arrangement facilitates directing the ports on the control module 100 to the various charging ports and switches, ensuring neat alignment of the electronic components within the photovoltaic energy storage box.

[0085] The third panel 15 is provided with an AC charging port 42 and a DC charging port 43, while the first panel 13 is provided with an AC output port 52 and a cigarette lighter 53. This arrangement places the DC charging port 43 and the AC output port 52 on opposite sides of the DC-AC converter module 30, optimizing the circuit design and facilitating the miniaturization of the photovoltaic energy storage box.

[0086] In addition, a handle is provided on the top plate 11, which makes it easy for users to move the photovoltaic energy storage box.

[0087] It can be understood that the present invention does not limit the number of photovoltaic input interface 41, AC charging interface 42, DC charging interface 43, type-c interface 44, USB 3.0 interface 51 and AC output interface 52. Those skilled in the art can set different numbers of interfaces according to the requirements of the photovoltaic energy storage box.

[0088] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A photovoltaic energy storage box, characterized in that: include: case; A power module is fixed in the housing; A DC-AC conversion module is fixed in the housing and electrically connected to the power module; a control module fixed in the housing, the control module being further electrically connected to the power module and the DC-AC conversion module; a charging interface electrically connected to the power module, the charging interface including at least one photovoltaic input interface, at least one AC charging interface, and at least one DC charging interface, wherein the photovoltaic input interface is used to connect to a solar panel; An output interface is electrically connected to the power module, and the output interface includes an AC output interface.

2. The photovoltaic energy storage box according to claim 1, characterized in that: The output interface further includes a plurality of type-c interfaces electrically connected to the power module, each of the type-c interfaces being capable of bidirectional charging and discharging; The type-c interface is used to electrically connect to a power adapter so that the power adapter can supply power to the power module; the type-c interface is also used to electrically connect to a device to be charged so that the power module can supply power to the device to be charged.

3. The photovoltaic energy storage box according to claim 2, characterized in that: The output interface further includes a plurality of USB 3.0 interfaces electrically connected to the power module, and the housing is further provided with a USB switch connected to the USB 3.0 interfaces and the type-c interface; The USB switch, the USB 3.0 interface and the type-c interface are arranged on the same side of the shell, and the USB switch is used to control the opening and closing of the USB 3.0 interface and the type-c interface.

4. The photovoltaic energy storage box according to claim 3, characterized in that: The control module is integrated with the USB fast charging protocol, the USB 3.0 interface is electrically connected to the control module, and the USB 3.0 interface supports the fast charging protocol.

5. The photovoltaic energy storage box according to claim 1, characterized in that: The output interface further includes a cigarette lighter electrically connected to the power module.

6. The photovoltaic energy storage box according to claim 1, characterized in that: The photovoltaic energy storage box also includes a wireless module arranged in the shell, the wireless module is electrically connected to the control module, and the wireless module is also used to connect to the external electronic device through signals and transmit battery status information and / or charge and discharge information to the external electronic device.

7. The photovoltaic energy storage box according to claim 1, characterized in that: The photovoltaic energy storage box further includes a display screen electrically connected to the control module. The display screen is arranged on any side surface or top surface of the shell, and is used to display battery status information and / or charge and discharge information of the power module.

8. The photovoltaic energy storage box according to claim 1, characterized in that: The photovoltaic energy storage box also includes a fixing frame fixed in the shell, the fixing frame has a receiving space, the power module is received in the receiving space, and the DC-AC conversion module and the control module are respectively fixed to any two side surfaces of the fixing frame.

9. The photovoltaic energy storage box according to claim 8, characterized in that: The photovoltaic energy storage box further includes a shielding cover fixedly connected to a side surface of the fixing frame. The shielding cover and the fixing frame enclose a shielding space, and the DC-AC conversion module is accommodated in the shielding space.

10. The photovoltaic energy storage box according to claim 1, characterized in that: The photovoltaic energy storage box also includes an emergency light assembly arranged on the shell, and the emergency light assembly includes an LED lamp and an LED switch connected to the power module. The LED lamp and LED switch are arranged on any side of the shell, and the LED switch is used to control the turning on and off of the LED lamp.

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