Solar assembly with energy storage device

Abstract

The utility model relates to the field of photovoltaic technology, in particular to a solar assembly with an energy storage device, which comprises a solar junction box and an expansion module. The solar junction box comprises a shell, a first energy storage device, a control circuit, a power output interface and an expansion interface, the first energy storage device, the power output interface and the expansion interface are all electrically connected with the control circuit, the expansion module comprises a shell and a second energy storage device, and the second energy storage device is electrically connected with the control circuit. The shell is detachably connected with the shell; and when the shell of the expansion module is connected to the shell of the solar junction box, the second energy storage device is electrically connected with the control circuit through the expansion interface. Therefore, a user can easily and directly output the solar power to the final power receiving equipment only by carrying one solar component outdoors or in a mobile scene, a more comprehensive power solution is provided, and the user experience is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic technology field especially relates to a solar module with energy storage device. BACKGROUND

[0002] The solar junction box is the output interface component of the solar cell panel (photovoltaic cell panel), as the connecting device between the solar cell panel and the external equipment, is responsible for the electricity that solar cell panel sent through the circuit convergence and is connected to the external equipment. It usually contains the shell, power output interface or the connecting line with power output interface, can directly output the electricity generated by the photovoltaic effect of solar cell panel to the external equipment. The external equipment usually includes energy storage device and power stabilizing device, after passing through these devices, the electricity is output to the final power receiving equipment.

[0003] With the increasingly wide application of portable mobile solar cell panel, especially in outdoor activities, travel and emergency power supply scenes, before using the solar cell panel, the user needs to connect the solar junction box with the energy storage device and other related equipment by oneself to realize solar power supply. And this connection step significantly increases the complexity of the use of solar cell panel. In addition, the split design between the solar junction box and the energy storage device also makes the carrying and operation of the equipment more cumbersome, resulting in poor user experience, limiting the use range and economic benefit value of the solar cell panel itself. SUMMARY

[0004] Therefore, the utility model provides a solar module with energy storage device, which aims at solving the problem that the existing solar junction box does not integrate energy storage device and cannot directly output electricity to the final power receiving equipment.

[0005] The utility model provides a solar module with energy storage device, which comprises a solar junction box and an expansion module.

[0006] The solar junction box comprises a shell, a first energy storage device, a control circuit, a power output interface and an expansion interface, the first energy storage device and the control circuit are arranged in the interior of the shell, the power output interface and the expansion interface are arranged on the exterior of the shell, and the first energy storage device, the power output interface and the expansion interface are electrically connected with the control circuit.

[0007] The expansion module comprises a shell and a second energy storage device, and the second energy storage device is arranged in the interior of the shell.

[0008] Wherein, the shell and the shell can be detachably connected, when the shell of the expansion module is connected to the shell of the solar junction box, the second energy storage device is electrically connected with the control circuit through the expansion interface.

[0009] Further, the first energy storage device comprises an energy storage capacitor and an energy storage battery, and the second energy storage device comprises an energy storage capacitor and an energy storage battery.

[0010] Further, the power output interface comprises two USB-C ports and one DC port.

[0011] Further, the extension interface is provided with conductive contact points, and the conductive contact points are electrically connected with the second energy storage device when the extension module is connected to the solar junction box.

[0012] Further, the conductive contact points comprise two positive voltage terminal metal contacts, one signal input terminal metal contact, one signal output terminal metal contact, and two negative voltage terminal metal contacts.

[0013] Further, the first energy storage device comprises four energy storage units, wherein,

[0014] three energy storage units are connected in parallel to form a parallel group, and the parallel group is connected in series with the remaining one energy storage unit; or

[0015] two energy storage units are connected in series to form a first series group, the first series group is connected in parallel with the remaining one energy storage unit, and the remaining another energy storage unit is not connected with other energy storage units; or

[0016] three energy storage units are connected in series to form a second series group, and the second series group is connected in parallel with the remaining one energy storage unit.

[0017] Further, the control circuit comprises a memory charge-discharge management circuit, a power output management circuit, and an extension charge-discharge management circuit, the memory charge-discharge management circuit is electrically connected with the first energy storage device, the power output management circuit is electrically connected with the power output interface, and the extension charge-discharge management circuit is electrically connected with the extension interface.

[0018] The memory charge-discharge management circuit comprises a main power supply circuit for providing power to the power output management circuit and an auxiliary power circuit when the power of the main power supply circuit is greater than or equal to a preset threshold, and an auxiliary power circuit for providing power to the power output management circuit together with the main power supply circuit when the power of the main power supply circuit is less than the preset threshold.

[0019] The main power supply circuit and the auxiliary power circuit are independently provided.

[0020] Further, the memory charge and discharge management circuit comprises a control module U1, a switch unit Q2, a switch unit Q3 and an energy storage inductor L1; wherein the step-down signal control end of the control module U1 is connected with the switch unit Q2, the step-up signal control end of the control module U1 is connected with the switch unit Q3, and the switch unit Q2 and the switch unit Q3 are both connected with the positive pole end of the direct current power supply of the control module U1 through the energy storage inductor L1.

[0021] Further, the switch unit Q2 comprises a MOSFET tube and a mechanical relay, and the switch unit Q3 comprises a MOSFET tube and a mechanical relay.

[0022] Further, the control module U1 is further connected with an external photovoltaic cell panel P1.

[0023] Compared with the prior art, the beneficial effects of the utility model lie in that a solar module with an energy storage device comprises a solar junction box and an expansion module; the solar junction box comprises a shell, a first energy storage device, a control circuit, a power output interface and an expansion interface, the first energy storage device and the control circuit are arranged inside the shell, the power output interface and the expansion interface are arranged outside the shell, the first energy storage device, the power output interface and the expansion interface are electrically connected with the control circuit, the expansion module comprises a shell and a second energy storage device, and the second energy storage device is arranged inside the shell; wherein the shell and the shell are detachably connected; when the shell of the expansion module is connected with the shell of the solar junction box, the second energy storage device is electrically connected with the control circuit through the expansion interface. It can be seen that the solar module with the energy storage device integrates the first energy storage device inside the solar junction box, users do not need to wire by themselves, and only one solar module can complete the solar-based power access, energy storage and power supply, which significantly simplifies the use process. At the same time, the shell of the solar junction box and the shell of the expansion module are detachably connected, when the two are connected to form an integrated structure, the second energy storage device of the expansion module can also participate in the energy storage and power supply process, providing additional power support for the solar module, so as to more flexibly meet the power demand in different scenes. This design enables users to easily output solar power directly to the final power receiving equipment in outdoor or mobile scenes by carrying only one solar module, providing a more comprehensive power solution and good user experience. BRIEF DESCRIPTION OF DRAWINGS

[0024] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not intended to limit the present application. Furthermore, the same reference numerals in different drawings denote the same or similar components. In the drawings:

[0025] Figure 1 A structure block diagram of the solar module with the energy storage device provided by the first embodiment of the present application is shown in FIG. 1.

[0026] Figure 2 A structure block diagram of the solar module with the energy storage device provided by the second embodiment of the present application is shown in FIG. 2.

[0027] Figure 3 A circuit structure diagram of the connection between the solar module with the energy storage device and the photovoltaic cell panel provided by the embodiment of the present application is shown in FIG. 3.

[0028] Figure 4 A circuit structure diagram of the extension module provided by the embodiment of the present application is shown in FIG. 4.

[0029] The reference signs are explained as follows:

[0030] 10 - solar junction box, 11 - first energy storage device, 12 - control circuit, 13 - power output interface, 14 - extension interface, 20 - extension module, 21 - second energy storage device, 121 - storage memory charge and discharge management circuit, 122 - extension charge and discharge management circuit, 123 - power output management circuit, 1211 - main power supply circuit, 1212 - auxiliary power circuit. DETAILED DESCRIPTION

[0031] The schemes in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0032] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indications also change accordingly.

[0033] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the present application.

[0034] Please refer to Figure 1 It is a structure block diagram of the solar energy assembly with energy storage device provided by the first embodiment of the present application.

[0035] The present application provides a solar energy assembly with energy storage device, comprising a solar junction box 10 and an expansion module 20;

[0036] The solar junction box 10 comprises a shell, a first energy storage device 11, a control circuit 12, a power output interface 13 and an expansion interface 14, the first energy storage device 11 and the control circuit 12 are arranged in the interior of the shell, the power output interface 13 and the expansion interface 14 are arranged outside the shell, the first energy storage device 11, the power output interface 13 and the expansion interface 14 are electrically connected with the control circuit 12,

[0037] The expansion module 20 comprises a shell and a second energy storage device 21, and the second energy storage device 21 is arranged in the interior of the shell;

[0038] Among them, the shell and the shell can be detachably connected; when the shell of the expansion module 20 is connected to the shell of the solar junction box 10, the second energy storage device 21 is electrically connected with the control circuit 12 through the expansion interface 14.

[0039] Specifically, the exterior of the shell can be provided with conductive contacts, which are electrically connected with the second energy storage device 21 in the interior of the shell. When the expansion module 20 is connected to the solar junction box 10, the conductive contacts are in contact with the conductive contact contacts of the expansion interface 14, so as to realize the electrical connection between the second energy storage device 21 and the control circuit 12. This connection mode is simple and effective, and can ensure good conductivity. Of course, there are many ways to establish stable electrical connection between the second energy storage device 21 and the control circuit 12, which will not be listed one by one here.

[0040] Specifically, the solar energy assembly with the energy storage device provided by the utility model provides an innovative outdoor power supply mode, which can effectively improve the stability and use efficiency of solar power generation output. The solar energy assembly can provide an output higher than the original output power of the power generation capacity or the power output interface 13 within a certain time period after the expansion module 20 is installed. In addition, the expansion module 20 supports solar charging and can independently provide power supply for the solar system, flexibly meeting the power demand of different scenes. The expansion module 20 is detachably connected with the solar junction box 10, so that the user can select whether to use the expansion module 20 according to the need, thereby enhancing the use flexibility of the solar energy assembly. If the expansion module 20 fails or needs to be upgraded, the user can also conveniently detach the expansion module 20 from the solar energy assembly for maintenance or replacement, without the need to replace the entire solar energy assembly, thereby greatly reducing the maintenance cost.

[0041] Compared with the prior art, the solar energy assembly with the energy storage device provided by the utility model integrates the first energy storage device 11 in the interior of the solar junction box 10, so that the user does not need to wire by himself or herself, and only needs to use one solar energy assembly to complete the power access, energy storage and power supply based on solar energy, thereby significantly simplifying the use process. Meanwhile, the shell of the solar junction box 10 and the shell of the expansion module 20 are detachably connected, so that when the two are connected to form an integrated structure, the second energy storage device 21 of the expansion module 20 can also participate in the energy storage and power supply process, thereby providing additional power support for the solar energy assembly, so as to more flexibly meet the power demand in different scenes. This design enables the user to easily output solar power directly to the final power receiving equipment in an outdoor or mobile scene only by carrying one solar energy assembly, thereby providing a more comprehensive power solution and good user experience.

[0042] In some embodiments of the present application, the first energy storage device 11 includes an energy storage capacitor and an energy storage battery, and the second energy storage device 21 includes an energy storage capacitor and an energy storage battery.

[0043] Specifically, the energy storage capacitor (commonly known as a super capacitor or an electrochemical capacitor) stores energy through an electric field. They store electrical energy through charge separation between electrodes. The energy storage battery stores and releases energy through chemical reactions. The battery converts electrical energy into chemical energy when charging and converts chemical energy into electrical energy when discharging. The energy storage capacitor and the energy storage battery have their own characteristics and are suitable for different application scenarios. The energy storage capacitor is suitable for occasions requiring fast charging and discharging and high power output, while the energy storage battery is more suitable for applications requiring long-term stable power supply. In actual application, the two can be used alone or in combination to help the solar energy assembly to exert greater advantages.

[0044] In some embodiments of the present application, the power output interface 13 includes two USB C ports and one DC port.

[0045] Specifically, when the solar junction box 10 is not connected with the expansion module 20, the USB-C port provides a power supply capacity of 20V / 3A, and when the solar junction box 10 is connected with the expansion module 20, a maximum power supply capacity of 48V / 5A can be provided. The USB-C (USB Type-C) port is a new type of USB interface standard with a reversible plug design that supports arbitrary insertion in both directions. The USB-C supports the USB Power Delivery (PD) protocol and can provide up to 100W of power transmission, suitable for charging laptops, tablets and other high-power devices. The DC port (direct current power interface) is an interface for connecting a direct current power supply, commonly used to connect power adapters, chargers and some electronic devices to provide stable direct current power. During the use of the solar module, the user can select different interfaces according to the specific device requirements and use scenarios.

[0046] In some embodiments of the present application, the expansion interface 14 is provided with conductive contact points; when the expansion module 20 is connected to the solar junction box 10, the conductive contact points and the second energy storage device 21 are electrically connected.

[0047] Specifically, the conductive contact points of the expansion interface 14 and the conductive contact points of the expansion module 20 are matched, and when the solar junction box 10 is connected with the expansion module 20, the two form effective conductive contact and establish stable electrical connection.

[0048] In some embodiments of the present application, the conductive contact points include two voltage positive terminal metal contacts, one signal input terminal metal contact, one signal output terminal metal contact, and two voltage negative terminal metal contacts.

[0049] Specifically, the expansion interface 14 includes six metal contacts, namely two V+ metal contacts, one ID (Identification) 1 metal contact, one ID2 metal contact, and two V- metal contacts.

[0050] In some embodiments of the present application, the first energy storage device 11 includes four energy storage units; wherein,

[0051] Three energy storage units are connected in parallel to form a parallel group, and the parallel group is connected in series with the remaining one energy storage unit; or

[0052] Two energy storage units are connected in series to form a first series group, the first series group is connected in parallel with the remaining one energy storage unit, and the remaining another energy storage unit is not connected with other energy storage units; or

[0053] Three energy storage units are connected in series to form a second series group, and the second series group is connected in parallel with the remaining one energy storage unit.

[0054] Specifically, the four energy storage units can be configured in a connection form of 1S (Series) 3P (Parallel), 2S1P (empty 1 energy storage unit) or 3S1P, respectively, to support voltage energy storage systems of 2.3-4.5V, 4.6-9V and 6.9-13.5V, respectively. Among them, 1S means that there is one energy storage unit in series in the first energy storage device 11. This means that the voltage of the energy storage unit is added, while the current remains unchanged. 3P means that there are three energy storage units in parallel in the first energy storage device 11. This means that the capacity of the three energy storage units will be added, while the voltage remains unchanged. Other connection forms are similar, and will not be described one by one here. Of course, the capacities of different energy storage units can be equal or not equal. The capacity of each energy storage unit can be selected according to market demand and user needs. The capacity of the energy storage unit can be flexibly adjusted to meet the requirements of different application scenarios.

[0055] Please refer to Figure 2 As shown in the figure, it is a structure block diagram of a solar module with an energy storage device according to the second embodiment of the present application.

[0056] In some embodiments of the present application, the control circuit 12 includes a memory charge and discharge management circuit 121, a power output management circuit 123 and an extended charge and discharge management circuit 122, the memory charge and discharge management circuit 121 is electrically connected with the first energy storage device 11, the power output management circuit 123 is electrically connected with the power output interface 13, and the extended charge and discharge management circuit 122 is electrically connected with the extension interface 14.

[0057] The memory charge and discharge management circuit 121 includes a main power supply circuit 1211 for providing power to the power output management circuit 123 and an auxiliary power circuit 1212 when the power of the main power supply circuit 1211 is greater than or equal to a preset threshold, and an auxiliary power circuit 1212 for providing power to the power output management circuit 123 together with the main power supply circuit 1211 when the power of the main power supply circuit 1211 is less than the preset threshold.

[0058] Among them, the main power supply circuit 1211 and the auxiliary power circuit 1212 are independently arranged.

[0059] Specifically, the main power supply circuit 1211 and the auxiliary power circuit 1212 are independently designed, which can ensure the normal operation of the main power supply circuit 1211, and even if the auxiliary power circuit 1212 fails, it will not affect the stability of the main power supply circuit 1211. At the same time, through the independent circuit design, the power can be better managed and distributed, ensuring that the power demand of the main power supply circuit 1211 and the auxiliary power circuit 1212 is effectively met. When needed, the auxiliary power circuit 1212 can also work independently without relying on the main power supply circuit 1211, thereby improving the flexibility and reliability of the solar module and enhancing the comprehensiveness and adaptability of overall power management, providing more efficient power support in different application scenarios.

[0060] Specifically, the auxiliary power circuit 1212 has the characteristics of active voltage reduction and passive voltage increase. When the power of the main power supply circuit 1211 is sufficient, the auxiliary power circuit 1212 not only provides power for the power output management circuit 123, but also actively reduces the voltage to charge the first energy storage device 11. When the power of the main power supply circuit 1211 is insufficient, the auxiliary power circuit 1212 will be passively and reversely boosted to provide power for the power output management circuit 123 together with the main power supply circuit 1211. This design realizes efficient management of power and ensures the stability and reliability of the charging and discharging process in different working states.

[0061] Specifically, the power output management circuit 123 includes a USB-C output management circuit and a DC output management circuit. The USB-C output management circuit manages the power transmission of the USB-C port to ensure that the solar module can supply power efficiently and safely. The DC output management circuit manages the DC power output of the DC port and adjusts the voltage and current to meet the power demand of the external powered device.

[0062] Specifically, the expansion charging and discharging management circuit 122 has the ability to communicate with the expansion module 20, and forms a communication closed loop circuit with the ID1-1 end, ID1-2 end and V- end of the expansion module 20 through the ID1 end (metal contact), ID2 end and V- end of the expansion interface 14. After successful handshaking, the internal circuits of the expansion charging and discharging management circuit 122 and the expansion module 20 control the expansion circuit switch tube Q4 and the discharging switch tube Q6 to open, respectively, to form a complete power connection path. Therefore, among the 6 conductive contact contacts of the expansion interface 14, there are 2 V+ metal contacts, which are in a cut-off state when there is no successful handshaking or no expansion module 20 is inserted into the solar junction box 10, to ensure the safety and stability of the solar module.

[0063] Please refer to Figure 3 and Figure 4As shown, they are respectively the circuit structure diagram of the solar module with energy storage device and photovoltaic cell panel connection and the circuit structure diagram of the expansion module 20 provided by the embodiment of the utility model.

[0064] In some embodiments of the present application, the memory charge and discharge management circuit 121 comprises a control module U1, a switch unit Q2, a switch unit Q3 and an energy storage inductor L1; wherein the step-down signal control end of the control module U1 is connected with the switch unit Q2, the step-up signal control end of the control module U1 is connected with the switch unit Q3, and the switch unit Q2 and the switch unit Q3 are both connected with the positive pole end of the DC power supply of the control module U1 through the energy storage inductor L1.

[0065] Specifically, when the control module U1 detects that the voltage of the PV+ end (positive pole end) is higher than the power supply voltage of the first energy storage device 11, it will control the switches of the switch unit Q2 and the switch unit Q3 to be in the BUCK (step-down conversion) working mode, in combination with the power supply of the energy storage inductor L1, to efficiently charge the first energy storage device 11 (such as Figure 3 As shown, the first energy storage device 11 is a super capacitor C2). When the control module U1 detects that the voltage of the PV+ end is lower than the power supply voltage of the first energy storage device 11, it will control the switches of the switch unit Q2 and the switch unit Q3 to switch to the BOST (step-up conversion) working mode, in combination with the power supply of the energy storage inductor L1, to form a discharge circuit and output stable power to support the continuous work of the power output management circuit 123, until the voltage of the PV+ end is higher than the voltage of the first energy storage device 11 again to enter the charging state, or work to the minimum discharge voltage of the first energy storage device 11 and stop output. In addition, a diode unit Q1 is arranged between the DC port and the PV+ end of the control module U1, which provides a maximum power equivalent to the output of the PV+ end, to ensure the high energy transmission efficiency of the solar module.

[0066] In some embodiments of the present application, the switch unit Q2 comprises a MOSFET tube and a mechanical relay, and the switch unit Q3 comprises a MOSFET tube and a mechanical relay.

[0067] Specifically, the switch unit Q2 and the switch unit Q3, as well as the expansion circuit switch tube Q4 and the discharge switch tube Q6, are not limited to MOSFET tubes, but can also use mechanical relays or other forms of controllable switching devices to ensure sufficient power access. This flexible choice can meet the needs of different application scenarios and ensure the stability and reliability of solar components under various working conditions. Among them, the MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) tube is a field-effect transistor that can control the current flow between the source and the drain by applying a voltage to the gate based on the electric field effect. When the gate voltage exceeds the preset threshold, the MOSFET tube is turned on, allowing current to flow from the source to the drain; when the gate voltage is below the preset threshold, the MOSFET tube is turned off, preventing current flow. The mechanical relay is an electrical switching device that uses electromagnetic principles to control the switching of circuits. It opens or closes the circuit by changing the current.

[0068] In some embodiments of the present application, the control module U1 is also connected to an external photovoltaic panel P1.

[0069] Specifically, the photovoltaic panel P1 is a device that converts solar energy into electrical energy, usually composed of multiple photovoltaic units (solar cells). These photovoltaic units use the photoelectric effect to directly convert light energy into direct current electrical energy. After the control module U1 is connected to the photovoltaic panel P1, it can monitor and manage the electrical energy generated by the photovoltaic panel P1, and intelligently switch between charging and discharging modes (BUCK mode and BOOST mode) according to the output voltage of the photovoltaic panel P1 and the load requirements, to achieve automatic control of the entire solar system.

[0070] The solar component with an energy storage device provided by the embodiments of the present application can maintain a stable working state and output power for a long time, and can directly provide continuous power supply to the powered equipment within a certain time, thereby realizing high-quality power supply guarantee. The solar component is based on the latest large-scale integrated circuit technology and meets international relevant standards and regulations, with a maximum power of 48V / 5A / 240W, which can effectively provide stable power support for the final powered equipment.

[0071] It should be noted that the technical solutions of the various embodiments of the present application can be combined with each other, but must be based on the realization of ordinary skilled personnel in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of the present application.

[0072] The above only describes some or preferred embodiments of the present application, neither the text nor the drawings can limit the scope of protection of the present application, any equivalent structural transformation or direct / indirect application in other related technical fields under the concept of the whole present application and the contents of the present application and the drawings are included in the scope of protection of the present application.

Claims

1. A solar module with energy storage device, characterized by The solar junction box and the expansion module are connected through the expansion interface. The solar junction box comprises a housing, a first energy storage device, a control circuit, a power output interface and an expansion interface. The first energy storage device and the control circuit are arranged inside the housing. The power output interface and the expansion interface are arranged outside the housing.

2. The solar module with energy storage device of claim 1, wherein, The first energy storage device, the power output interface and the expansion interface are electrically connected with the control circuit.

3. The solar module with energy storage device of claim 1, wherein, The first energy storage device comprises an energy storage capacitor and an energy storage battery.

4. The solar module with energy storage device of claim 1, wherein, The second energy storage device comprises an energy storage capacitor and an energy storage battery.

5. The solar module with energy storage device of claim 4, wherein, The power output interface comprises two USB C ports and a DC port.

6. The solar module with energy storage device of claim 1, wherein, The expansion interface is provided with conductive contact points. The conductive contact points and the second energy storage device are electrically connected when the expansion module is connected with the solar junction box. The conductive contact points comprise two voltage positive terminal metal contact points, one signal input terminal metal contact point, one signal output terminal metal contact point and two voltage negative terminal metal contact points. The first energy storage device comprises four energy storage units.

7. The solar module with energy storage device of claim 1, wherein, Three energy storage units are connected in parallel to form a parallel group, and the parallel group is connected in series with the remaining one energy storage unit. Two energy storage units are connected in series to form a first series group, and the first series group is connected in parallel with the remaining one energy storage unit. Three energy storage units are connected in series to form a second series group, and the second series group is connected in parallel with the remaining one energy storage unit.

8. The solar module with energy storage device of claim 7, wherein, The control circuit comprises a memory charge and discharge management circuit, a power output management circuit and an expansion charge and discharge management circuit. The memory charge and discharge management circuit is electrically connected with the first energy storage device. The power output management circuit is electrically connected with the power output interface. The expansion charge and discharge management circuit is electrically connected with the expansion interface. The memory charge and discharge management circuit comprises a main power supply circuit for providing power to the power output management circuit and an auxiliary power circuit when the power of the main power supply circuit is greater than or equal to a preset threshold, and an auxiliary power circuit for providing power to the power output management circuit together with the main power supply circuit when the power of the main power supply circuit is less than the preset threshold. The main power supply circuit and the auxiliary power circuit are independently arranged. The memory charge and discharge management circuit comprises a control module U1, a switching unit Q2, a switching unit Q3 and an energy storage inductor L1. The control module U1 is connected with the switching unit Q2 through a voltage reduction signal control terminal. The control module U1 is connected with the switching unit Q3 through a voltage increase signal control terminal. The switching unit Q2 and the switching unit Q3 are connected with the control module U1 through the energy storage inductor L1.

9. The solar module with energy storage device of claim 8, wherein, The switch unit Q2 comprises a MOSFET tube and a mechanical relay, and the switch unit Q3 comprises a MOSFET tube and a mechanical relay.

10. The solar module with energy storage device of claim 8, wherein, The control module U1 is also connected with an external photovoltaic panel P1.

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