Solar cell assembly and method of using same, power station

Abstract

The present invention relates to a solar cell assembly and a method for using the same, as well as a power station. The solar cell assembly includes: a first edge, a second edge opposite to the first edge, a positive electrode and a negative electrode respectively arranged near the first edge and near the second edge, a battery array including a first battery group near the first edge and a second battery group near the second edge and connected in series with the first battery group, a first junction box connected in parallel with the first battery group, and a second junction box connected in parallel with the second battery group. The first junction box includes a first positive electrode connection terminal and a first negative electrode connection terminal, the second junction box includes a second positive electrode connection terminal and a second negative electrode connection terminal, a positive electrode connector is connected to the first positive electrode connection terminal or the second positive electrode connection terminal, and a negative electrode connector is connected to the first negative electrode connection terminal or the second negative electrode connection terminal, so as to avoid the abnormal operation of the first battery group or the second battery group causing the junction box or the solar cell assembly to burn out, thereby ensuring the output power of the solar cell assembly.

Description

Technical Field

[0001] The invention relates to a solar cell assembly and a use method thereof, and a power station. Background Art

[0002] Solar cell modules are a type of module that can convert solar energy into electrical energy. During the manufacturing, transportation and use of solar cells, problems such as hidden cracks are inevitable, which can cause abnormal operation of solar cell modules. Specifically, "hidden cracks" refer to the phenomenon that fine cracks appear on the cells of solar cell modules, which can easily cause the fine grid lines on the cells to break. The broken fine grid lines cannot transmit current to the main grid lines, which affects the current collection of the cells and reduces the output efficiency of the solar cell modules. Cells with hidden crack problems will also consume the electricity of the solar cell module as a load, which increases the temperature of the cell and causes hot spot problems. In severe cases, it may even cause the entire solar cell module to burn out and fail.

[0003] In the prior art, a solar cell assembly includes: a battery array having a plurality of battery groups connected in series, a junction box connected in parallel with each battery group, a positive connector connected to the positive connection end of the junction box disposed near the positive pole of the solar cell assembly, and a negative connector connected to the negative connection end of the junction box disposed near the negative pole of the solar cell assembly. Each junction box is provided with a diode pointing from the negative connection end of the junction box to the positive connection end of the junction box. If a battery cell in a battery group has problems such as hidden cracks and works abnormally, the output voltage of the battery group decreases, and the diode in the junction box connected in parallel with the battery group is turned on to short-circuit the battery group, thereby preventing the battery group from consuming the electric energy of the solar cell assembly.

[0004] However, the diode is easily burned out when it is turned on for a long time, which may cause the junction box to burn out, and even cause the entire solar cell module to burn out and fail. After the diode burns out, the abnormally working battery pack will also act as a load, affecting the output power of the solar cell module. Summary of the invention

[0005] In view of this, an embodiment of the present invention provides a solar cell assembly and a method for using the same, as well as a power station, which can effectively ensure the output power of the solar cell assembly and prevent the junction box and the solar cell assembly from burning when the solar cell assembly has problems such as hidden cracks.

[0006] To achieve the above object, according to one aspect of the present invention, a solar cell assembly is provided, comprising:

[0007] The first edge,

[0008] a second edge opposite to the first edge,

[0009] a positive electrode disposed near the first edge,

[0010] a negative electrode disposed near the second edge,

[0011] A battery array comprising a first battery group near the first edge and a second battery group near the second edge and connected in series with the first battery group,

[0012] a first junction box connected in parallel with the first battery pack, and

[0013] a second junction box connected in parallel with the second battery pack,

[0014] The first junction box includes a first positive connection terminal and a first negative connection terminal, the second junction box includes a second positive connection terminal and a second negative connection terminal, a positive connector is connected to the first positive connection terminal or the second positive connection terminal, and a negative connector is connected to the first negative connection terminal or the second negative connection terminal.

[0015] According to another aspect of the present invention, there is provided a solar cell assembly, comprising:

[0016] The first edge,

[0017] a second edge opposite to the first edge,

[0018] a positive electrode disposed near the first edge,

[0019] a negative electrode disposed near the second edge,

[0020] A battery array comprising a first battery group near the first edge, a second battery group near the second edge, and a third battery group connected in series between the first battery group and the second battery group,

[0021] a first junction box connected in parallel with the first battery pack,

[0022] a second junction box connected in parallel with the second battery pack, and

[0023] a third junction box connected in parallel with the third battery pack,

[0024] The first junction box includes a first positive electrode connection terminal and a first negative electrode connection terminal, the second junction box includes a second positive electrode connection terminal and a second negative electrode connection terminal, and the third junction box includes a third positive electrode connection terminal and a third negative electrode connection terminal. A positive electrode connector is connected to the first positive electrode connection terminal, the second positive electrode connection terminal, or the third positive electrode connection terminal, and a negative electrode connector is connected to the first negative electrode connection terminal, the second negative electrode connection terminal, or the third negative electrode connection terminal.

[0025] According to another aspect of the present invention, there is provided a solar cell assembly, comprising:

[0026] The first edge,

[0027] a second edge opposite to the first edge,

[0028] a battery array including a first battery group near the first edge, a second battery group near the second edge, and a third battery group connected in series between the first battery group and the second battery group, and

[0029] a third junction box connected in parallel with the third battery pack,

[0030] The third junction box includes a third positive electrode connection terminal and a third negative electrode connection terminal, and a short-circuit connector can be connected to the third positive electrode connection terminal and the third negative electrode connection terminal.

[0031] According to another aspect of the present invention, there is provided a solar cell assembly, comprising:

[0032] The first edge,

[0033] a second edge opposite to the first edge,

[0034] a positive electrode disposed near the first edge,

[0035] a negative electrode disposed near the second edge,

[0036] A battery array comprising a first battery group near the first edge, a second battery group near the second edge, and at least two third battery groups connected in series between the first battery group and the second battery group,

[0037] a first junction box connected in parallel with the first battery pack,

[0038] a second junction box connected in parallel with the second battery pack, and

[0039] a third junction box connected in parallel with each of the third battery packs,

[0040] The first junction box includes a first positive electrode connection terminal and a first negative electrode connection terminal, the second junction box includes a second positive electrode connection terminal and a second negative electrode connection terminal, and the third junction box includes a third positive electrode connection terminal and a third negative electrode connection terminal. A positive connector is connected to the first positive electrode connection terminal, the second positive electrode connection terminal, or the third positive electrode terminal, a negative connector is connected to the first negative electrode connection terminal, the second negative electrode connection terminal, or the third negative electrode connection terminal, and a short-circuit connector is connected to the third positive electrode connection terminal and the third negative electrode connection terminal.

[0041] According to another aspect of the present invention, there is provided a method for using a solar cell assembly, the method comprising:

[0042] If the first battery pack and the second battery pack are working normally, the positive electrode connector is connected to the first positive electrode connection terminal, and the negative electrode connector is connected to the second negative electrode connection terminal;

[0043] If the first battery pack works abnormally and the second battery pack works normally, the positive electrode connector is connected to the second positive electrode connection terminal, and the negative electrode connector is connected to the second negative electrode connection terminal;

[0044] If the first battery pack operates normally and the second battery pack operates abnormally, the positive electrode connector is connected to the first positive electrode connection terminal, and the negative electrode connector is connected to the first negative electrode connection terminal.

[0045] According to another aspect of the present invention, there is provided a method for using a solar cell assembly, the method comprising:

[0046] If the first battery pack, the second battery pack and the third battery pack work normally, the positive electrode connector is connected to the first positive electrode connection terminal, and the negative electrode connector is connected to the second negative electrode connection terminal;

[0047] If the first battery pack works abnormally and the second battery pack and the third battery pack work normally, the positive electrode connector is connected to the third positive electrode connection terminal, and the negative electrode connector is connected to the second negative electrode connection terminal;

[0048] If the first battery pack and the third battery pack work normally, and the second battery pack works abnormally, the positive electrode connector is connected to the first positive electrode connection terminal, and the negative electrode connector is connected to the third negative electrode connection terminal;

[0049] If the first battery pack works normally, and the second battery pack and the third battery pack work abnormally, the positive electrode connector is connected to the first positive electrode connection terminal, and the negative electrode connector is connected to the first negative electrode connection terminal;

[0050] If the second battery pack works normally and the first battery pack and the third battery pack work abnormally, the positive electrode connector is connected to the second positive electrode connection terminal, and the negative electrode connector is connected to the second negative electrode connection terminal;

[0051] If the third battery pack operates normally and the first battery pack and the second battery pack operate abnormally, the positive electrode connector is connected to the third positive electrode connection terminal, and the negative electrode connector is connected to the third negative electrode connection terminal.

[0052] Another aspect of the present invention provides a method for using a solar cell assembly, the method comprising:

[0053] If the third battery pack operates abnormally, the third positive electrode connection terminal and the third negative electrode connection terminal are respectively connected to two ends of the short-circuit connector.

[0054] According to another aspect of the present invention, there is provided a method for using a solar cell assembly, the method comprising:

[0055] If the first battery pack, the second battery pack and all the third battery packs are operating normally, the first positive electrode connection end is connected to the positive electrode connector, and the second negative electrode connection end is connected to the negative electrode connector;

[0056] If the first battery pack and the second battery pack work normally and at least one of the third battery packs works abnormally, the first positive connection terminal is connected to the positive connector, the second negative connection terminal is connected to the negative connector, and the third positive connection terminal and the third negative connection terminal connected to the abnormally working third battery pack are respectively connected to the two ends of the short-circuit connector;

[0057] If the first battery group is working abnormally, at least one of the third battery group and the second battery group are working normally, the third battery group working normally is adjacent to the second battery group or is closest to the first battery group and other third battery groups between the third battery group working normally and the second battery group are working normally, the third positive electrode connection terminal connected to the third battery group closest to the first battery group and working normally is connected to the positive connector, and the second negative electrode connection terminal is connected to the negative connector;

[0058] If the first battery pack and at least one third battery pack are working abnormally, at least one third battery pack and the second battery pack are working normally, and the third battery pack working abnormally is located between the third battery pack working normally and the second battery pack, the third positive connection terminal connected to the third battery pack working normally is connected to the positive connector, the third positive connection terminal and the third negative connection terminal connected to the third battery pack working abnormally are connected to the two ends of the short-circuit connector respectively, and the second negative connection terminal is connected to the negative connector;

[0059] If the second battery pack is working abnormally, at least one of the third battery packs and the first battery pack are working normally, the third battery pack working normally is adjacent to the first battery pack or is closest to the second battery pack and other third battery packs between the third battery pack working normally and the first battery pack are working normally, the first positive connection end is connected to the positive connector, and the third negative connection end connected to the third battery pack closest to the second battery pack and working normally is connected to the negative connector;

[0060] If the second battery pack and at least one third battery pack are working abnormally, at least one third battery pack and the first battery pack are working normally, and the abnormally working third battery pack is located between the normally working third battery pack and the first battery pack, the first positive electrode connection terminal is connected to the positive connector, the third positive electrode connection terminal and the third negative electrode connection terminal connected to the abnormally working third battery pack are connected to the two ends of the short-circuit connector respectively, and the third negative electrode connection terminal connected to the normally working third battery pack is connected to the negative electrode connector;

[0061] If the first battery pack and the second battery pack are working abnormally, and at least one of the third battery packs is working normally, the third positive connection terminal connected to the third battery pack working normally is connected to the positive connector, and the third negative connection terminal connected to the third battery pack working normally is connected to the negative connector.

[0062] According to another aspect of the present invention, there is provided a power station, comprising:

[0063] At least two of the solar cell modules of any one of the above-mentioned types are connected in series; or at least two of the solar cell modules of any one of the above-mentioned types are connected in parallel.

[0064] The technical solution provided by the present invention has at least the following beneficial effects:

[0065] The solar cell assembly provided by the present invention, when in use, if the first battery group works abnormally and the second battery group works normally, the positive electrode connector is connected to the second positive electrode connection end of the second junction box, and the negative electrode connector is connected to the second negative electrode connection end of the second junction box, which disconnects and isolates the first battery group, avoiding the first battery group from burning the first junction box and the solar cell assembly due to problems such as hidden cracks, and the first battery group will not consume the electric energy of the second battery group as a load, which ensures the output power of the solar cell assembly. If the first battery group works normally and the second battery group works abnormally, the positive electrode connector is connected to the first positive electrode connection end of the first junction box, and the negative electrode connector is connected to the first negative electrode connection end of the first junction box, which disconnects and isolates the second battery group, avoiding the second battery group from burning the second junction box and the solar cell assembly due to problems such as hidden cracks, and the second battery group will not consume the electric energy of the first battery group as a load, which ensures the output power of the solar cell assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Figure 1 is a schematic diagram of a partial structure of a solar cell assembly according to an embodiment of the first aspect of the present invention;

[0067] Figure 2 yes Figure 1 A schematic diagram of the connection relationship between the first battery pack and the second battery pack;

[0068] Figure 3 yes Figure 1 A schematic diagram of one method of using a solar cell module;

[0069] Figure 4 yes Figure 1 A schematic diagram of another method of using a solar cell module;

[0070] Figure 5 yes Figure 1 A schematic diagram of another method of using a solar cell module;

[0071] Figure 6 yes Figure 3 , Figure 4 or Figure 5 Schematic diagram of the structure of the positive connector;

[0072] Figure 7 yes Figure 3 , Figure 4 or Figure 5 Schematic diagram of the structure of the middle negative connector;

[0073] Figure 8 yes Figure 1 A schematic diagram of the structure of the first junction box;

[0074] Fig. 9 is a schematic diagram of a partial structure of a solar cell assembly according to an embodiment of the third aspect of the present invention;

[0075] Fig.10 yes Fig. 9 A schematic diagram of the connection relationship between the first battery pack, the second battery pack and the third battery pack;

[0076] Fig.11 yes Fig. 9 A schematic diagram of one method of using a solar cell module;

[0077] Fig.12 yes Fig. 9 A schematic diagram of another method of using a solar cell module;

[0078] Fig.13 yes Fig. 9 A schematic diagram of another method of using a solar cell module;

[0079] Fig.14 yes Fig. 9 A schematic diagram of another method of using a solar cell module;

[0080] Fig.15 yes Fig. 9 A schematic diagram of another method of using a solar cell module;

[0081] Fig.16 yes Fig. 9 A schematic diagram of another method of using a solar cell module;

[0082] Fig.17 yes Fig. 9 A schematic diagram of the structure of the second junction box;

[0083] Fig.18 yes Fig. 9 A schematic diagram of another method of using a solar cell module;

[0084] Fig.19 is a schematic diagram of a partial structure of a solar cell assembly according to an embodiment of the fifth aspect of the present invention;

[0085] Fig. 20 yes Fig.19 A schematic diagram of one method of using a solar cell module;

[0086] Fig.21 yes Fig.19 A schematic diagram of another method of using a solar cell module;

[0087] Fig. 22 yes Fig. 20 or Fig.21 Structural diagram of the medium and short circuit connector;

[0088] Fig.23 yes Fig.19 A schematic diagram of the structure of the third junction box;

[0089] Fig.24 is a schematic diagram of a partial structure of a solar cell assembly according to an embodiment of the seventh aspect of the present invention;

[0090] Fig.25 yes Fig.24 A schematic diagram of one method of using a solar cell module;

[0091] Fig.26 yes Fig.24 A schematic diagram of another method of using a solar cell module;

[0092] Fig. 27 yes Fig.24 A schematic diagram of another method of using a solar cell module;

[0093] Fig.28 yes Fig.24 A schematic diagram of another method of using a solar cell module;

[0094] Fig.29 yes Fig.24 A schematic diagram of another method of using a solar cell module;

[0095] Fig.30 yes Fig.24 A schematic diagram of another method of using a solar cell module;

[0096] Fig.31 yes Fig.24 Schematic diagram of another way in which solar cell modules are used.

[0097] Wherein, the accompanying drawings are marked as follows:

[0098] First edge: 101, 201, 301, 401; second edge: 102, 202, 302, 402; positive electrode: 103, 203; negative electrode: 104, 204; battery array: 110, 210, 310, 410; first battery group: 111, 211, 311, 411; second battery group: 112, 212, 312, 412; third battery group: 213, 313, 413; first junction box: 120, 220, 320, 420; first positive electrode connection terminal : 121+, 221+, 321+, 421+; first negative electrode connection terminal: 121-, 221-, 321-, 421-; first box body: 122; first positive conductor: 123+; first negative conductor: 123-; first unidirectional conductor: 124; first positive electrode waterproof seal: 125; first negative electrode waterproof seal: 126; second junction box: 130, 230, 330, 430; second positive electrode connection terminal: 131+, 231+, 331+, 431+; second negative electrode connection Terminal: 131-, 231-, 331-, 431-; second box body: 222; second positive conductor: 223+; second negative conductor: 223-; second unidirectional conductive member: 224; second positive electrode waterproof seal: 225; second negative electrode waterproof seal: 226; third junction box: 240, 340, 440; third positive electrode connection terminal: 241+, 341+, 441+; third negative electrode connection terminal: 241-, 341-, 441-; third box body: 342; third positive conductor: 343+; third negative conductor: 343-; third unidirectional conductor: 344; third positive waterproof seal: 345; third negative waterproof seal: 346; positive connector: 140, 250, 350, 450; first plug-in terminal: 141; first cable: 142; first external terminal: 143; negative connector: 150, 260, 360, 460; second plug-in terminal: 151; second cable: 152; second external terminal: 153; short-circuit connector: 270, 370, 470. DETAILED DESCRIPTION

[0099] First, the terms involved in the present invention are explained: "Normal operation" means that the battery pack has no problems such as hidden cracks or hot spots, and can participate in photovoltaic power generation according to the factory standards. "Abnormal operation" means that at least one battery cell in the battery pack has defects such as hidden cracks or hot spots, so that the battery pack cannot participate in photovoltaic power generation according to the factory standards. The "first battery pack", "second battery pack" or "third battery pack" involved in the present invention can respectively include one battery string, or can respectively include multiple parallel battery strings, each battery string includes multiple battery cells connected in series. Multiple battery packs in each solar cell module are connected in series, so that the solar cell module can have a positive electrode and a negative electrode. "Close to" and "nearby" refer to the relative distance. For example, the positive electrode is located near the first edge and the negative electrode is located near the second edge, then the positive electrode is closer to the first edge than the negative electrode. The present invention does not limit the specific position of the positive electrode at the first edge, and does not limit the specific position of the negative electrode at the second edge.

[0100] The following combination Figures 1 to 30 The solar cell assembly and its use method and power station provided by the present invention are described as follows:

[0101] A first aspect of an embodiment of the present invention provides a solar cell assembly 100, Figure 1 and Figure 2 , which may include: a first edge 101, a second edge 102 opposite to the first edge 101, a positive electrode 103 disposed near the first edge 101, a negative electrode 104 disposed near the second edge 102, a battery array 110 including a first battery group 111 near the first edge 101 and a second battery group 112 near the second edge 102 and connected in series with the first battery group 111, a first junction box 120 connected in parallel with the first battery group 111, and a second junction box 130 connected in parallel with the second battery group 112. The first junction box 120 includes a first positive electrode connection terminal 121+ and a first negative electrode connection terminal 121-, and the second junction box 130 includes a second positive electrode connection terminal 131+ and a second negative electrode connection terminal 131-, refer to Figure 3 , Figure 4 or Figure 5 A positive electrode connector 140 is connected to the first positive electrode connection terminal 121+ or the second positive electrode connection terminal 131+, and a negative electrode connector 150 is connected to the first negative electrode connection terminal 121- or the second negative electrode connection terminal 131-.

[0102] Before using the solar cell assembly 100, it is generally assumed that the first battery group 111 and the second battery group 112 are both operating normally. Figure 3, connect the positive connector 140 to the first positive connection terminal 121+ of the first junction box 120, and connect the negative connector 150 to the second negative connection terminal 131- of the second junction box 130, so that both the first battery group 111 and the second battery group 112 participate in photovoltaic power generation. During the operation of the solar cell assembly 100, the first battery group 111 and the second battery group 112 will inevitably have problems such as hidden cracks and work abnormally. If the first battery group 111 works abnormally and the second battery group 112 works normally, refer to Figure 4 , connect the positive connector 140 to the second positive connection terminal 131+ of the second junction box 130, and connect the negative connector 150 to the second negative connection terminal 131- of the second junction box 130, so that only the power of the second battery group 112 is transmitted between the positive connector 140 and the negative connector 150, and the first battery group 111 is disconnected and isolated, so as to avoid the first battery group 111 from burning the first junction box 120 and the solar cell module 100 due to problems such as hidden cracks, and the first battery group 111 will not consume the power of the second battery group 112 as a load, so as to ensure the output power of the solar cell module 100. If the first battery group 111 works normally and the second battery group 112 works abnormally, refer to Figure 5 , connect the positive connector 140 to the first positive connection terminal 121+ of the first junction box 120, and connect the negative connector 150 to the first negative connection terminal 121- of the first junction box 120. This allows only the power of the first battery group 111 to be transmitted between the positive connector 140 and the negative connector 150, and the second battery group 112 is disconnected and isolated, preventing the second battery group 112 from burning out due to problems such as hidden cracks in the second battery group 112, and the second battery group 112 will not consume the power of the first battery group 111 as a load, thereby ensuring the output power of the solar cell module 100.

[0103] In order to facilitate the connection between the first positive connection terminal 121+ of the first junction box 120 or the second positive connection terminal 131+ of the second junction box 130 and the positive connector 140, the first positive connection terminal 121+ or the second positive connection terminal 131+ and the positive connector 140 can be plugged in and connected. Similarly, in order to facilitate the connection between the first negative connection terminal 121- or the second negative connection terminal 131- and the negative connector 150, the first negative connection terminal 121- or the second negative connection terminal 131- and the negative connector 150 can be plugged in and connected. The pluggable connection method allows for convenient, fast and flexible assembly and disassembly. The present invention provides an example of the structure of the positive connector 140 and the negative connector 150, with reference to Figure 6The positive electrode connector 140 may include a first plug-in terminal 141, a first cable 142 and a first external terminal 143 which are electrically connected in sequence, wherein the first plug-in terminal 141 is used for plugging and connecting with the first positive electrode connection terminal 121+ or the second positive electrode connection terminal 131+, and the first external terminal 143 is used for connecting with other solar cell modules 100 or inverters. Figure 7 The negative electrode connector 150 may include a second plug-in terminal 151, a second cable 152, and a second external terminal 153 that are electrically connected in sequence. The second plug-in terminal 151 is used to be plugged and connected with the first negative electrode connection terminal 121- or the second negative electrode connection terminal 131-, and the second external terminal 153 is used to connect with other solar cell modules 100 or inverters and other devices. The structure of the first plug-in terminal 141 and the first positive electrode connection terminal 121+ or the second positive electrode connection terminal 131+, and the structure of the second plug-in terminal 151 and the first negative electrode connection terminal 121- or the second negative electrode connection terminal 131- can be a matching aviation connector, VGA (Video Graphics Array, video graphics array) plug, DVI (Digital Visual Interface, digital video interface) plug, HDMI (High Definition Multimedia Interface, high definition multimedia interface) plug, USB (Universal Serial Bus, universal serial bus) plug, Type-C plug or Lightning plug, etc. The first external terminal 143 can be a male connector, and the second external terminal 153 can be a female connector matching the first external terminal, so that the first external terminal 143 of the positive connector 140 of one solar cell assembly 100 can be plugged into the second external terminal 153 of the negative connector 150 of another solar cell assembly 100 .

[0104] The first junction box 120 and the second junction box 130 can be assembled on the back of the solar cell module 100 by means of adhesive or fixings (such as screws). In order to save production costs, the structures of the first junction box 120 and the second junction box 130 can be the same. Figure 8The first junction box 120 may include: a first box body 122, a first positive conductor 123+ disposed in the first box body 122 and electrically connected to the first positive electrode connection terminal 121+, a first negative conductor 123- disposed in the first box body 122 and electrically connected to the first negative electrode connection terminal 121-, and a first one-way conductor 124 connected between the first positive conductor 123+ and the first negative conductor 123-. The first one-way conductor 124 conducts along the direction from the first negative conductor 123- to the first positive conductor 123+, and the first one-way conductor 124 may be a diode. The positive electrode of the first battery group 111 is electrically connected to the first positive conductor 123+ through a bus bar, and the negative electrode of the first battery group 111 is electrically connected to the first negative conductor 123- through a bus bar. If the first battery pack 111 works normally, the current outputted from the positive electrode of the first battery pack 111 passes through the bus bar, the first positive conductor 123+ and the first positive connection terminal 121+ in sequence, and the current is transmitted to the negative electrode of the first battery pack 111 by the first negative connection terminal 121-, the first negative conductor 123- and the bus bar, thus forming a loop. The first positive connection terminal 121+ and the first negative connection terminal 121- can be arranged outside the first box body 122, so that it is convenient for the positive connector 140 and the negative connector 150 to be connected or separated with the first positive connection terminal 121+ and the first negative connection terminal 121- respectively.

[0105] As mentioned above, if the first battery group 111 and the second battery group 112 are working normally, the first positive connection terminal 121+ of the first junction box 120 is connected to the positive connector 140, and the second negative connection terminal 131- of the second junction box 130 is connected to the negative connector 150, then the first negative connection terminal 121- of the first junction box 120 and the second positive connection terminal 131+ of the second junction box 130 are idle. In addition, if one of the first battery group 111 and the second battery group 112 is working abnormally, one of the first junction box 120 and the second junction box 130 is idle. In order to prevent the idle first positive connection terminal 121+ or the second positive connection terminal 131+, and the first negative connection terminal 121- or the second negative connection terminal 131- from entering water or collision and affecting the working performance of the solar cell assembly 100, taking the first junction box 120 as an example, continue to refer to Figure 8, the first junction box 120 may also include: a first positive electrode waterproof seal 125 that can cover the first positive electrode connection terminal 121+ and a first negative electrode waterproof seal 126 that can cover the first negative electrode connection terminal 121-. It should be noted that "coverable" means that it can be covered or disassembled. Before the first positive electrode connection terminal 121+ is connected to the positive connector 140 or other components, the first positive electrode waterproof seal 125 can be opened or removed to connect the first positive electrode connection terminal 121+ to the positive connector 140. Before the first negative electrode connection terminal 121- is connected to the negative connector 150 or other components, the first negative electrode waterproof seal 126 can be opened or removed to connect the first negative electrode connection terminal 121- to the negative connector 150. The first positive electrode waterproof seal 125 and the first negative electrode waterproof seal 126 can be cap-shaped structures and can be opened or removed.

[0106] The second junction box 130 can also be connected to the positive electrode of the second battery group 112 through the bus bar, and connected to the negative electrode of the second battery group 112 through the bus bar. If the second battery group 112 works normally, the current of the second battery group 112 is output from the second positive electrode connection terminal 131+ of the second junction box 130, and the current can be input from the second negative electrode connection terminal 131- of the second junction box 130 to form a loop. The structure of the second junction box 130 can refer to the structure of the first junction box 120.

[0107] A second aspect of the embodiment of the present invention provides a method for using the solar cell assembly 100 in the first aspect, the method comprising:

[0108] If the first battery pack 111 and the second battery pack 112 work normally, refer to Figure 3 , connect the positive connector 140 to the first positive connection terminal 121+, and plug the negative connector 150 to the second negative connection terminal 131-, so that both the first battery group 111 and the second battery group 112 participate in photovoltaic power generation.

[0109] If the first battery pack 111 works abnormally, the second battery pack 112 works normally. Figure 4 , connect the positive connector 140 to the second positive connection terminal 131+, and connect the negative connector 150 to the second negative connection terminal 131-. This allows only the power of the second battery group 112 to be transmitted between the positive connector 140 and the negative connector 150, disconnecting and isolating the first battery group 111, preventing the first battery group 111 from burning out due to problems such as hidden cracks, and the first battery group 111 will not consume the power of the second battery group 112 as a load, thereby ensuring the output power of the solar cell assembly 100.

[0110] If the first battery pack 111 works normally and the second battery pack 112 works abnormally, refer to Figure 5 , connect the positive connector 140 to the first positive connection terminal 121+, and connect the negative connector 150 to the first negative connection terminal 121-. This allows only the power of the first battery group 111 to be transmitted between the positive connector 140 and the negative connector 150, disconnecting and isolating the second battery group 112, preventing the second battery group 112 from burning the second junction box 130 and the solar cell assembly 100 due to problems such as hidden cracks, and the second battery group 112 will not consume the power of the first battery group 111 as a load, thereby ensuring the output power of the solar cell assembly 100.

[0111] The third aspect of the embodiment of the present invention provides a solar cell assembly 200, which is additionally provided with a third battery group 213 and a third junction box 240 compared with the solar cell assembly 100 provided in the first aspect. Fig. 9 and Fig.10 The solar cell assembly 200 includes: a first edge 201, a second edge 202 opposite to the first edge 201, a positive electrode 203 arranged near the first edge 201, a negative electrode 204 arranged near the second edge 202, a battery array 210 including a first battery group 211 close to the first edge 201, a second battery group 212 close to the second edge 202, and a third battery group 213 connected in series between the first battery group 211 and the second battery group 212, a first junction box 220 connected in parallel with the first battery group 211, a second junction box 230 connected in parallel with the second battery group 212, and a third junction box 240 connected in parallel with the third battery group 213. Among them, the first junction box 220 includes a first positive connection terminal 221+ and a first negative connection terminal 221-, the second junction box 230 includes a second positive connection terminal 231+ and a second negative connection terminal 231-, and the third junction box 240 includes a third positive connection terminal 241+ and a third negative connection terminal 241-. The positive connector 250 is connected to the first positive connection terminal 221+ or the second positive connection terminal 231+ or the third positive connection terminal 241+, and the negative connector 260 is connected to the first negative connection terminal 221-, the second negative connection terminal 231- or the third negative connection terminal 241-.

[0112] Before the solar cell assembly 200 is used, it is generally assumed that the first battery group 211, the second battery group 212 and the third battery group 213 are all operating normally. Fig.11, connect the positive connector 250 to the first positive connection terminal 221+ of the first junction box 220, and connect the negative connector 260 to the second negative connection terminal 231- of the second junction box 230, so that the first battery group 211, the second battery group 212 and the third battery group 213 all participate in photovoltaic power generation. During the operation of the solar cell assembly 200, the first battery group 211, the second battery group 212 and the third battery group 213 will inevitably have problems such as hidden cracks and work abnormally. If the first battery group 211 works abnormally, the second battery group 212 and the third battery group 213 work normally. Fig.12 , connect the positive connector 250 to the third positive connection terminal 241+ of the third junction box 240, and connect the negative connector 260 to the second negative connection terminal 231- of the second junction box 230. This allows only the power of the second battery group 212 and the third battery group 213 to be transmitted between the positive connector 250 and the negative connector 260, disconnecting and isolating the first battery group 211, thereby preventing the first junction box 220 and the solar cell module 200 from being burned due to problems such as hidden cracks in the first battery group 211, and the first battery group 211 will not consume the power of the second battery group 212 and the third battery group 213 as a load, thereby ensuring the output power of the solar cell module. If the first battery group 211 and the third battery group 213 work normally, and the second battery group 212 works abnormally, refer to Fig.13 , connect the positive connector 250 to the first positive connection terminal 221+ of the first junction box 220, and connect the negative connector 260 to the third negative connection terminal 241- of the third junction box 240, so that only the power of the first battery group 211 and the third battery group 213 is transmitted between the positive connector 250 and the negative connector 260, and the second battery group 212 is disconnected and isolated, so as to prevent the second battery group 212 from burning the second junction box 230 and the solar cell module 200 due to problems such as hidden cracks, and the second battery group 212 will not consume the power of the first battery group 211 and the third battery group 213 as a load, so as to ensure the output power of the solar cell module 200. If the first battery group 211 works normally, and the second battery group 212 and the third battery group 213 work abnormally, refer to Fig.14, connect the positive connector 250 to the first positive connection terminal 221+ of the first junction box 220, and connect the negative connector 260 to the first negative connection terminal 221- of the first junction box 220, which only collects the electric energy of the first battery group 211, and disconnects and isolates the second battery group 212 and the third battery group 213, so as to prevent the second battery group 212 and the third battery group 213 from burning the second junction box 230, the third junction box 240 and the solar cell assembly 200 due to problems such as hidden cracks, and the second battery group 212 and the third battery group 213 will not consume the electric energy of the first battery group 211 as a load, which ensures the output power of the solar cell assembly 200. If the second battery group 212 works normally, and the first battery group 211 and the third battery group 213 work abnormally, the positive connector 250 is connected to the second positive connection terminal 231+ of the second junction box 230, and the negative connector 260 is connected to the second negative connection terminal 231- of the second junction box 230. This only collects the electric energy of the second battery group 212, and disconnects and isolates the first battery group 211 and the third battery group 213, so as to prevent the first battery group 211 and the third battery group 213 from burning the first junction box 220, the third junction box 240 and the solar cell assembly 200 due to problems such as hidden cracks, and the first battery group 211 and the third battery group 213 will not consume the electric energy of the second battery group 212 as a load, which ensures the output power of the solar cell assembly 200. If the third battery group 213 works normally and the first battery group 211 and the second battery group 212 work abnormally, the positive connector 250 is connected to the third positive connection terminal 241+ of the third junction box 240, and the negative connector 260 is connected to the third negative connection terminal 241- of the third junction box 240. This only collects the electric energy of the third battery group 213, and disconnects and isolates the first battery group 211 and the second battery group 212, so as to avoid the first battery group 211 and the second battery group 212 from burning the first junction box 220, the second junction box 230 and the solar cell assembly 200 due to problems such as hidden cracks, and the first battery group 211 and the second battery group 212 will not consume the electric energy of the third battery group 213 as a load, which ensures the output power of the solar cell assembly 200.

[0113] In order to facilitate the connection between the first positive connection terminal 221+ of the first junction box 220 or the second positive connection terminal 231+ of the second junction box 230 or the third positive connection terminal 241+ of the third junction box 240 and the positive connector 250, the first positive connection terminal 221+ or the second positive connection terminal 231+ or the third positive connection terminal 241+ and the positive connector 250 can be plugged in and connected. Similarly, in order to facilitate the connection between the first negative connection terminal 221- of the first junction box 220 or the second negative connection terminal 231- of the second junction box 230 or the third negative connection terminal 241- of the third junction box 240 and the negative connector 260, the first negative connection terminal 221- or the second negative connection terminal 231- or the third negative connection terminal 241- and the negative connector 260 can be plugged in and connected. The pluggable connection method is convenient, fast and flexible to disassemble and assemble. Among them, the structures of the positive connector 250 and the negative connector 260 can refer to the description of the first aspect of the embodiment of the present invention.

[0114] The first junction box 220, the second junction box 230 and the third junction box 240 can be assembled on the back of the solar cell module 200 by means of adhesive or fixings (such as screws), and the first junction box 220, the second junction box 230 and the third junction box 240 can be arranged in series in a row. In order to save production costs, the structures of the first junction box 220, the second junction box 230 and the third junction box 240 can be the same. Taking the second junction box 230 as an example, refer to Fig.17 The second junction box 230 may include: a second box body 232, a second positive conductor 233+ disposed in the second box body 232 and electrically connected to the second positive electrode connection terminal 231+, a second negative conductor 233- disposed in the second box body 232 and electrically connected to the second negative electrode connection terminal 231-, and a second one-way conductive member 234 connected between the second positive conductor 233+ and the second negative conductor 233-. The second one-way conductive member 234 is conductive along the direction from the second negative conductor 233- to the second positive conductor 233+, and the second one-way conductive member 234 may be a diode. The second positive conductor 233+ is electrically connected to the positive electrode of the second battery pack 212 through a bus bar, and the second negative conductor 233- is electrically connected to the negative electrode of the second battery pack 212 through a bus bar. If the second battery pack 212 operates normally, the current outputted from the positive electrode of the second battery pack 212 flows sequentially through the bus bar, the second positive conductor 233+, and the second positive connection terminal 231+, and the current is sequentially transmitted from the second negative connection terminal 231-, the second negative conductor 233-, and the bus bar to the negative electrode of the second battery pack 212, thus forming a loop. The second positive connection terminal 231+ and the second negative connection terminal 231- can be arranged outside the second box body 232 to facilitate the connection or disconnection between the positive connector 250 and the negative connector 260 and the second positive connection terminal 231+ and the second negative connection terminal 231-, respectively.

[0115] As mentioned above, if the first battery group 211 and the second battery group 212 work normally, the first positive connection terminal 221+ of the first junction box 220 is connected to the positive connector 250, and the second negative connection terminal 231- of the second junction box 230 is connected to the negative connector 260, then the first negative connection terminal 221- of the first junction box 220 and the second positive connection terminal 231+ of the second junction box 230 are idle. In addition, if one of the first battery group 211, the second battery group 212 and the third battery group 213 works abnormally, the junction box corresponding to the abnormally working battery group is idle. In order to prevent the idle positive and negative connection terminals from entering water or colliding and affecting the working performance of the solar cell assembly 200, the second junction box 230 may also include: a second positive waterproof seal 235 that can cover the second positive connection terminal 231+ and a second negative waterproof seal 236 that can cover the second negative connection terminal 231-. It should be noted that "coverable" means that it can be covered or disassembled. When the second positive electrode connection terminal 231+ is connected to the positive electrode connector 250 or other components, the second positive electrode waterproof seal 235 can be opened or removed to connect the second positive electrode connection terminal 231+ to the positive electrode connector 250. When the second negative electrode connection terminal 231- is connected to the negative electrode connector 260 or other components, the second negative electrode waterproof seal 236 can be opened or removed to connect the second negative electrode connection terminal 231- to the negative electrode connector 260. The second positive electrode waterproof seal 235 and the second negative electrode waterproof seal 236 can be in a cap-shaped structure and can be directly opened or removed.

[0116] The structures of the first junction box 220 and the third junction box 240 may refer to the structure of the second junction box 230 .

[0117] refer to Fig.18 The solar cell assembly 300 further includes a short-circuit connector 270 , which is connected to the third positive electrode connection terminal 241+ and the third negative electrode connection terminal 241 −.

[0118] A fourth aspect of the embodiments of the present invention provides a method for using the solar cell assembly 200 in the third aspect, the method comprising:

[0119] If the first battery pack 211, the second battery pack 212 and the third battery pack 213 work normally, refer to Fig.11 , connect the positive connector 250 to the first positive connection terminal 221+, and connect the negative connector 260 to the second negative connection terminal 231-, so that the first battery group 211, the second battery group 212 and the third battery group 213 all participate in photovoltaic power generation.

[0120] If the first battery pack 211 works abnormally, the second battery pack 212 and the third battery pack 213 work normally. Fig.12 , connect the positive connector 250 to the third positive connection terminal 241+, and connect the negative connector 260 to the second negative connection terminal 231-. This allows only the power of the second battery group 212 and the third battery group 213 to be transmitted between the positive connector 250 and the negative connector 260, disconnecting and isolating the first battery group 211, preventing the first battery group 211 from burning the first junction box 220 and the solar cell assembly 200 due to problems such as hidden cracks, and the first battery group 211 will not consume the power of the second battery group 212 and the third battery group 213 as a load, thereby ensuring the output power of the solar cell assembly.

[0121] If the first battery pack 211 and the third battery pack 213 work normally, and the second battery pack 212 works abnormally, refer to Fig.13 , connect the positive connector 250 to the first positive connection terminal 221+, and connect the negative connector 260 to the third negative connection terminal 241-. This allows only the power of the first battery group 211 and the third battery group 213 to be transmitted between the positive connector 250 and the negative connector 260, disconnecting and isolating the second battery group 212, thereby preventing the second battery group 212 from burning the second junction box 230 and the solar cell assembly 200 due to problems such as hidden cracks, and the second battery group 212 will not consume the power of the first battery group 211 and the third battery group 213 as a load, thereby ensuring the output power of the solar cell assembly 200.

[0122] If the first battery pack 211 works normally, the second battery pack 212 and the third battery pack 213 work abnormally, refer to Fig.14 , connect the positive connector 250 to the first positive connection terminal 221+, and connect the negative connector 260 to the first negative connection terminal 221-. This only collects the electric energy of the first battery group 211, disconnects and isolates the second battery group 212 and the third battery group 213, and prevents the second battery group 212 and the third battery group 213 from burning the second junction box 230, the third junction box 240 and the solar cell assembly 200 due to problems such as hidden cracks, and the second battery group 212 and the third battery group 213 will not consume the electric energy of the first battery group 211 as a load, which ensures the output power of the solar cell assembly 200.

[0123] If the second battery pack 212 works normally, the first battery pack 211 and the third battery pack 213 work abnormally, refer to Fig.15, connect the positive connector 250 to the second positive connection terminal 231+, and connect the negative connector 260 to the second negative connection terminal 231-. This only collects the electric energy of the second battery group 212, disconnects and isolates the first battery group 211 and the third battery group 213, and prevents the first battery group 211 and the third battery group 213 from burning the first junction box 220, the third junction box 240 and the solar cell assembly 200 due to problems such as hidden cracks, and the first battery group 211 and the third battery group 213 will not consume the electric energy of the second battery group 212 as a load, which ensures the output power of the solar cell assembly 200.

[0124] If the third battery pack 213 works normally, the first battery pack 211 and the second battery pack 212 work abnormally, refer to Fig.16 , connect the positive connector 250 to the third positive connection terminal 241+, and connect the negative connector 260 to the third negative connection terminal 241-. This only collects the electric energy of the third battery group 213, disconnects and isolates the first battery group 211 and the second battery group 212, and prevents the first battery group 211 and the second battery group 212 from burning the first junction box 220, the second junction box 230 and the solar cell assembly 200 due to problems such as hidden cracks, and the first battery group 211 and the second battery group 212 will not consume the electric energy of the third battery group 213 as a load, which ensures the output power of the solar cell assembly 200.

[0125] The method for using the solar cell assembly provided in this embodiment further includes: if the third battery group 213 works abnormally, the first battery group 211 and the second battery group 212 work normally, refer to Fig.18 , connect the third positive electrode connection terminal 241+ and the third negative electrode connection terminal 241- to the short-circuit connector 270, connect the positive electrode connector 250 to the first positive electrode connection terminal 221+, and connect the negative electrode connector 260 to the second negative electrode connection terminal 231-. This only collects the electric energy of the first battery group 211 and the second battery group 212, disconnects and isolates the third battery group 213, and prevents the third battery group 213 from burning the third junction box 240 and the solar cell assembly 200 due to problems such as hidden cracks, and the third battery group 213 will not consume the electric energy of the first battery group 211 and the second battery group 212 as a load, which ensures the output power of the solar cell assembly 200.

[0126] The fifth aspect of the embodiment of the present invention provides a solar cell assembly 300, which has a similar structure to the solar cell assembly 200 provided in the third aspect. Fig.19The solar cell assembly 300 includes: a first edge 301, a second edge 302 opposite to the first edge 301, a battery array 310 including a first battery group 311 close to the first edge 301, a second battery group 312 close to the second edge 302, and at least one third battery group 313 disposed between the first battery group 311 and the second battery group 312, and a third junction box 340 connected in parallel with the third battery group 313. The third junction box 340 includes a third positive electrode connection terminal 341+ and a third negative electrode connection terminal 341-, and a short-circuit connector 370 is connected to the third positive electrode connection terminal 341+ and the third negative electrode connection terminal 341-.

[0127] Before using the solar cell assembly 300, it is generally assumed that the first battery group 311, the second battery group 312 and the third battery group 313 are all working properly, and the short-circuit connector 370 does not need to be connected at this time. However, when the third battery group 313 has problems such as hidden cracks and works abnormally, refer to Fig. 20 or Fig.21 , connect the third positive connection terminal 341+ and the third negative connection terminal 341- of the third junction box 340 to the two ends of the short-circuit connector 370 respectively, so as to short-circuit and isolate the third battery group 313, so as to prevent the third battery group 313 from working abnormally due to problems such as hidden cracks, thereby preventing the third junction box 340 and the solar cell assembly 300 from burning, and the third battery group 313 will not consume the electric energy of the solar cell assembly 300 as a load, which ensures the output power of the solar cell assembly 300.

[0128] In some embodiments, continue to refer to Fig.19 The solar cell assembly 300 may further include: a positive electrode disposed near the first edge 301, a negative electrode disposed near the second edge 302, a first junction box 320 connected in parallel with the first battery group 311, and a second junction box 330 connected in parallel with the second battery group 312. Fig.21 The first junction box 320 includes a first positive connection terminal 321+ and a first negative connection terminal 321-, and the second junction box 330 includes a second positive connection terminal 331+ and a second negative connection terminal 331-. The positive connector 350 is connected to the first positive connection terminal 321+, and the negative connector 360 is connected to the second negative connection terminal 331-. If the first battery group 311 and the second battery group 312 work normally, the first positive connection terminal 321+ is connected to the positive connector 350, and the second negative connection terminal 321- is connected to the negative connector 360. In this way, the third battery group 313 is short-circuited and isolated through the short-circuit connector 370, so that the first battery group 311 and the second battery group 312 participate in photovoltaic power generation. Fig.21 Relative to Fig. 20In particular, the first junction box 320 further includes a first negative electrode connection terminal 321-, and the second junction box 330 further includes a second positive electrode connection terminal 331+. If one of the first battery pack 311 and the second battery pack 312 works normally and the third battery pack 312 works abnormally, the positive connector 350 and the negative connector 360 can be connected to the positive connection terminal and the negative connection terminal of one of the first battery pack 311 and the second battery pack 312.

[0129] In order to facilitate the connection between the first positive connection terminal 321+ of the first junction box 320 and the positive connector 350, and the connection between the third positive connection terminal 341+ of the third junction box 340 and the short-circuit connector 370, the first positive connection terminal 321+ and the positive connector 350 can be plugged and connected, and the third positive connection terminal 341+ and the short-circuit connector 370 can be plugged and connected. Similarly, in order to facilitate the connection between the first negative connection terminal 321- of the first junction box 320 and the negative connector 360, and the third negative connection terminal 341- of the third junction box 340 and the short-circuit connector 370, the first negative connection terminal 321- and the negative connector 360 can be plugged and connected, and the third negative connection terminal 341- and the short-circuit connector 370 can be plugged and connected. The pluggable connection method is convenient, fast and flexible to disassemble and assemble. Among them, the structure of the positive connector 350 and the negative connector 360 can refer to the description of the first aspect of the embodiment of the present invention.

[0130] refer to Fig. 22 The short-circuit connector 370 includes a third plug-in terminal 371, a third cable 372 and a fourth plug-in terminal 373 connected in sequence. The third plug-in terminal 371 is used to be plugged with the third positive connection terminal 341+, and the fourth plug-in terminal 373 is used to be plugged with the third negative connection terminal 341-. The structure of the third plug-in terminal 371 and the third positive connection terminal 341+, and the structure of the fourth plug-in terminal 373 and the third negative connection terminal 341- can be a matching aviation connector, VGA data plug, DVI data plug, HDMI data plug, USB plug, T y PE-C plug or Lightning plug, etc.

[0131] In order to save production costs, the structures of the first junction box 320, the second junction box 330 and the third junction box 340 can be the same. Fig.23The third junction box 340 includes: a third box body 342, a third positive conductor 343+ disposed in the third box body 342 and electrically connected to the third positive electrode connection terminal 341+, a third negative conductor 343- disposed in the third box body 342 and electrically connected to the third negative electrode connection terminal 341-, and a third one-way conductive member 344 connected between the third positive conductor 343+ and the third negative conductor 343-. The third one-way conductive member 344 is conductive along the direction from the third negative conductor 343- to the third positive conductor 343+, and the third one-way conductive member 344 can be a diode. The positive electrode of the third battery group 313 is electrically connected to the third positive conductor 343+ through a bus bar, and the negative electrode of the third battery group 313 is electrically connected to the third negative conductor 343- through a bus bar. If the third battery pack 313 works normally, the current outputted by the positive electrode of the third battery pack 313 flows sequentially through the bus bar, the third positive conductor 343+ and the third positive electrode connection terminal 341+, and the third negative electrode connection terminal 341- sequentially transmits the current to the third negative conductor 343-, the bus bar and the negative electrode of the third battery pack 313, thus forming a loop. The third positive electrode connection terminal 341+ and the third negative electrode connection terminal 341- can be arranged outside the third box body 342 to facilitate the connection or separation of the short-circuit connector 370 with the third positive electrode connection terminal 341+ and the third negative electrode connection terminal 341-.

[0132] As mentioned above, if the third battery pack 313 works normally, there is no need to connect the short-circuit connector 370 to the third junction box 340, and the third positive electrode connection terminal 341+ and the third negative electrode connection terminal 341- of the third junction box 340 are idle. In order to prevent the idle positive electrode connection terminal and the negative electrode connection terminal from being flooded or collided and affecting the working performance of the solar cell assembly 300, continue to refer to Fig.23 , the third junction box 340 may also include: a third positive electrode waterproof seal 345 that can cover the third positive electrode connection terminal 341+ and a third negative electrode waterproof seal 346 that can cover the third negative electrode connection terminal 341-. It should be noted that "coverable" means that it can be covered or disassembled. When the third positive electrode connection terminal 341+ is connected to the positive electrode connector 350 or other components, the third positive electrode waterproof seal 345 can be opened or removed so that the third positive electrode connection terminal 341+ can be connected to the positive electrode connector 350. When the third negative electrode connection terminal 341- is connected to the negative electrode connector 360 or other components, the third negative electrode waterproof seal 346 can be opened or removed so that the third negative electrode connection terminal 341- can be connected to the negative electrode connector 360. The third positive electrode waterproof seal 345 and the third negative electrode waterproof seal 346 can be in a cap-shaped structure and can be directly opened or removed.

[0133] The structures of the first junction box 320 and the second junction box 330 may refer to the description of the structure of the third junction box 340 .

[0134] A sixth aspect of the embodiments of the present invention provides a method for using the solar cell assembly 300 in the fifth aspect, the method comprising:

[0135] If the third battery pack 313 works abnormally, refer to Fig. 20 or Fig.21 , the third positive electrode connection terminal 341+ and the third negative electrode connection terminal 341 − are respectively connected to the two ends of the short-circuit connector 370.

[0136] If the third battery pack 313 operates normally, it is not necessary to connect the third positive electrode connection terminal 341+ and the third negative electrode connection terminal 341 − to the two ends of the short-circuit connector 370 respectively.

[0137] The method for using the solar cell assembly 300 provided in the embodiment of the present invention is that if the third battery group 313 works abnormally, the third positive connection terminal 341+ and the third negative connection terminal 341- of the third junction box 340 are respectively connected to the two ends of the short-circuit connector 370 to short-circuit and isolate the third battery group 313, so as to avoid the third battery group 313 working abnormally due to problems such as hidden cracks, which may cause the third junction box 340 and the solar cell assembly 300 to burn out, and the third battery group 313 will not consume the electric energy of the solar cell assembly 300 as a load, thereby ensuring the output power of the solar cell assembly 300.

[0138] In some embodiments, the solar cell group 300 further includes: a positive electrode disposed near the first edge 301, a negative electrode disposed near the second edge 302, a first junction box 320 connected in parallel with the first battery group 311, and a second junction box 330 connected in parallel with the second battery group 312. The first junction box 320 includes a first positive electrode connection terminal 321+ and a first negative electrode connection terminal 321-, and the second junction box 330 includes a second positive electrode connection terminal 331+ and a second negative electrode connection terminal 331-. The method further includes:

[0139] If the first battery pack 311 and the second battery pack 312 work normally, refer to Fig. 20 or Fig.21 , connect the positive connector 350 to the first positive connection terminal 321+, and connect the negative connector 360 to the second negative connection terminal 331-. In this way, the third battery group 313 is short-circuited and isolated through the short-circuit connector 370, so that the first battery group 311 and the second battery group 312 participate in photovoltaic power generation.

[0140] The seventh aspect of the embodiments of the present invention provides a solar cell assembly 400, which, compared with the solar cell assemblies provided in the third and fifth aspects of the embodiments of the present invention, has at least one third battery group and a corresponding third junction box. Fig.24The solar cell assembly 400 includes: a first edge 401, a second edge 402 opposite to the first edge 401, a positive electrode disposed near the first edge 401, a negative electrode disposed near the second edge 402, a battery array 410 including a first battery group 411 near the first edge 401, a second battery group 412 near the second edge 402, and at least two third battery groups 413 connected in series between the first battery group 411 and the second battery group 412, a first junction box 420 connected in parallel with the first battery group 411, a second junction box 430 connected in parallel with the second battery group 412, and a third junction box 430 connected in parallel with each third battery group 413. The third battery group 413 corresponds to the third junction box 430 one by one. Among them, the first junction box 420 includes a first positive connection terminal 421+ and a first negative connection terminal 421-, the second junction box 430 includes a second positive connection terminal 431+ and a second negative connection terminal 431-, and the third junction box 440 includes a third positive connection terminal 441+ and a third negative connection terminal 441-. A positive connector 450 is connected to the first positive connection terminal 421+ or the second positive connection terminal 431+ or the third positive terminal 441+, and a negative connector 460 is connected to the first negative connection terminal 421- or the second negative connection terminal 431- or the third negative connection terminal 441-, or a short-circuit connector 470 is connected to the third positive connection terminal 441+ and the third negative connection terminal 441-.

[0141] Before use, the solar cell assembly 400 provided in the embodiment of the present invention is generally considered that the first battery group 411, the second battery group 412 and the third battery group 413 are all operating normally. Fig.25 , connect the first positive connection terminal 421+ to the positive connector 450, and connect the second negative connection terminal 431- to the negative connector 460, so that all battery groups participate in photovoltaic power generation.

[0142] If the first battery pack 411 and the second battery pack 412 work normally, at least one third battery pack 413 works abnormally, refer to Fig.26 , connect the first positive connection terminal 421+ to the positive connector 450, connect the second negative connection terminal 431- to the negative connector 460, and connect the third positive connection terminal 441+ and the third negative connection terminal 441- connected to the abnormally working third battery group 413 to the two ends of the short-circuit connector 470 respectively, so as to short-circuit and isolate the abnormally working third battery group 413 through the short-circuit connector 470, so as to avoid the abnormally working third battery group 413 from burning the third junction box 440 and the solar cell assembly 400 due to problems such as hidden cracks, and the abnormally working third battery group 413 will not consume the electric energy of the first battery group 411, the second battery group 412 and the normally working third battery group 413 as a load, which ensures the output power of the solar cell assembly 400.

[0143] If the first battery pack 411 works abnormally, at least one third battery pack 413 and the second battery pack 412 work normally, and the other third battery packs 413 adjacent to the second battery pack 412 or between the third battery pack 413 and the second battery pack 412 work normally are all working normally. Fig. 27 , connect the third positive connection terminal 441+ connected to the third battery group 413 which is closest to the first battery group 411 and works normally to the positive connector 450, and connect the second negative connection terminal 431- to the negative connector 460. In this way, the abnormally working first battery group 411 and the third battery group 413 are disconnected and isolated, so as to avoid the abnormally working first battery group 411 and the third battery group 413 from burning the first junction box 420, the third junction box 440 and the solar cell module 400 due to hidden cracks and other problems, and the abnormally working first battery group 411 and the third battery group 413 will not consume the electric energy of the second battery group 412 and the normally working third battery group 413 as loads, which ensures the output power of the solar cell module 400.

[0144] If the first battery pack 411 and at least one third battery pack 413 are working abnormally, at least one third battery pack 413 and the second battery pack 412 are working normally, and the abnormally working third battery pack 413 is located between the normally working third battery pack 413 and the second battery pack 412, refer to Fig.28 , the third positive connection terminal 441+ connected to the normally working third battery group 413 is connected to the positive connector 450, the third positive connection terminal 441+ and the third negative connection terminal 441- connected to the abnormally working third battery group 413 are respectively connected to the two ends of the short-circuit connector 470, and the second negative connection terminal 431- is connected to the negative connector 460. In this way, the abnormally working first battery group 411 is disconnected and isolated, and the abnormally working third battery group 413 is short-circuited and isolated, so as to avoid the abnormally working first battery group 411 and the third battery group 413 from burning the first junction box 420, the third junction box 440 and the solar cell module 400 due to problems such as hidden cracks, and the abnormally working first battery group 411 and the third battery group 413 will not consume the electric energy of the second battery group 412 and the normally working third battery group 413 as loads, thereby ensuring the output power of the solar cell module 400.

[0145] If the second battery pack 412 works abnormally, at least one third battery pack 413 and the first battery pack 411 work normally, and the other third battery packs 413 adjacent to the first battery pack 411 or between the third battery pack 413 and the first battery pack 411 work normally, refer to Fig.29, connect the first positive connection terminal 421+ to the positive connector 450, and connect the third negative connection terminal 441- connected to the third battery group 412 which is closest to the second battery group 412 and works normally to the negative connector 460. In this way, the abnormally working second battery group 412 and the third battery group 413 are disconnected and isolated, so as to avoid the abnormally working second battery group 412 and the third battery group 413 from burning the second junction box 430, the third junction box 440 and the solar cell module 400 due to problems such as hidden cracks, and the abnormally working second battery group 412 and the third battery group 413 will not consume the electric energy of the first battery group 411 and the normally working third battery group 413 as loads, thereby ensuring the output power of the solar cell module 400.

[0146] If the second battery pack 412 and at least one third battery pack 413 are working abnormally, at least one third battery pack 413 and the first battery pack 411 are working normally, and the abnormally working third battery pack 413 is located between the normally working third battery pack 413 and the first battery pack 411, refer to Fig.30 , connect the first positive electrode connection terminal 421+ to the positive electrode connector 450, connect the third positive electrode connection terminal 441+ and the third negative electrode connection terminal 441- connected to the abnormally working third battery group 413 to the two ends of the short-circuit connector 370 respectively, and connect the third negative electrode connection terminal 441- connected to the normally working third battery group 413 to the negative electrode connector 460. In this way, the abnormally working second battery group 412 is disconnected and isolated, and the abnormally working third battery group 413 is short-circuited and isolated, so as to avoid the abnormally working first battery group 411 and the third battery group 413 from burning the second junction box 430, the third junction box 440 and the solar cell module 400 due to problems such as hidden cracks, and the abnormally working second battery group 412 and the third battery group 413 will not consume the electric energy of the first battery group 411 and the normally working third battery group 413 as loads, thereby ensuring the output power of the solar cell module 400.

[0147] If the first battery pack 411 and the second battery pack 412 work abnormally, at least one third battery pack 413 works normally. Fig.31, the third positive connection terminal 441+ connected to the normally working third battery group 413 is connected to the positive connector 450, and the third negative connection terminal 441- connected to the normally working third battery group 413 is connected to the negative connector 460. In this way, the abnormally working first battery group 411 and the second battery group 412 are disconnected and isolated, so as to avoid the first battery group 411 and the second battery group 412 from burning the first junction box 420, the second junction box 430 and the solar cell module 400 due to problems such as hidden cracks, and the abnormally working first battery group 411 and the second battery group 412 will not consume the electric energy of the normally working third battery group 413 as a load, which ensures the output power of the solar cell module 400. In this case, if the abnormally working third battery group 413 is located between two adjacent normally working third battery groups 413, the abnormally working third battery group 413 can also be short-circuited by a short-circuit connector 470, which will not be listed here one by one.

[0148] In this embodiment, the structures of the first junction box 420 , the second junction box 430 , the third junction box 440 , the positive electrode connector 450 , the negative electrode connector 460 , and the short-circuit connector 470 may all refer to the structures in other embodiments.

[0149] An eighth aspect of the embodiments of the present invention provides a method for using the solar cell assembly 400 in the seventh aspect, the method comprising:

[0150] If the first battery pack 411, the second battery pack 412 and all the third battery packs 413 are working properly, refer to Fig.25 , connect the first positive connection terminal 421+ to the positive connector 450, and connect the second negative connection terminal 431- to the negative connector 460, so that all battery groups participate in photovoltaic power generation.

[0151] If the first battery pack 411 and the second battery pack 412 work normally, at least one third battery pack 413 works abnormally, refer to Fig.26 , connect the first positive connection terminal 421+ to the positive connector 450, connect the second negative connection terminal 431- to the negative connector 460, and respectively connect the third positive connection terminal 441+ and the third negative connection terminal 441- connected to the abnormally working third battery group 413 to the two ends of the short-circuit connector 470. In this way, the abnormally working third battery group 413 is short-circuited and isolated through the short-circuit connector 470, so as to avoid the abnormally working third battery group 413 from burning the third junction box 440 and the solar cell module 400 due to problems such as hidden cracks, and the abnormally working third battery group 413 will not consume the electric energy of the first battery group 411, the second battery group 412 and the normally working third battery group 413 as a load, thereby ensuring the output power of the solar cell module 400.

[0152] If the first battery pack 411 works abnormally, at least one third battery pack 413 and the second battery pack 412 work normally, and the other third battery packs 413 adjacent to the second battery pack 412 or between the third battery pack 413 and the second battery pack 412 work normally are all working normally. Fig. 27 , connect the third positive connection terminal 441+ connected to the third battery group 413 which is closest to the first battery group 411 and works normally to the positive connector 450, and connect the second negative connection terminal 431- to the negative connector 460. In this way, the abnormally working first battery group 411 and the third battery group 413 are disconnected and isolated, so as to avoid the abnormally working first battery group 411 and the third battery group 413 from burning the first junction box 420, the third junction box 440 and the solar cell module 400 due to hidden cracks and other problems, and the abnormally working first battery group 411 and the third battery group 413 will not consume the electric energy of the second battery group 412 and the normally working third battery group 413 as loads, which ensures the output power of the solar cell module 400.

[0153] If the first battery pack 411 and at least one third battery pack 413 are working abnormally, at least one third battery pack 413 and the second battery pack 412 are working normally, and the abnormally working third battery pack 413 is located between the normally working third battery pack 413 and the second battery pack 412, refer to Fig.28 , the third positive connection terminal 441+ connected to the normally working third battery group 413 is connected to the positive connector 450, the third positive connection terminal 441+ and the third negative connection terminal 441- connected to the abnormally working third battery group 413 are respectively connected to the two ends of the short-circuit connector 470, and the second negative connection terminal 431- is connected to the negative connector 460. In this way, the abnormally working first battery group 411 is disconnected and isolated, and the abnormally working third battery group 413 is short-circuited and isolated, so as to avoid the abnormally working first battery group 411 and the third battery group 413 from burning the first junction box 420, the third junction box 440 and the solar cell module 400 due to hidden cracks and other problems, and the abnormally working first battery group 411 and the third battery group 413 will not consume the electric energy of the second battery group 412 and the normally working third battery group 413 as loads, thereby ensuring the output power of the solar cell module 400.

[0154] If the second battery pack 412 works abnormally, at least one third battery pack 413 and the first battery pack 411 work normally, and the other third battery packs 413 adjacent to the first battery pack 411 or between the third battery pack 413 and the first battery pack 411 work normally, refer to Fig.29, connect the first positive connection terminal 421+ to the positive connector 450, and connect the third negative connection terminal 441- connected to the third battery group 412 which is closest to the second battery group 412 and works normally to the negative connector 460. In this way, the abnormally working second battery group 412 and the third battery group 413 are disconnected and isolated, so as to avoid the abnormally working second battery group 412 and the third battery group 413 from burning the second junction box 430, the third junction box 440 and the solar cell module 400 due to problems such as hidden cracks, and the abnormally working second battery group 412 and the third battery group 413 will not consume the electric energy of the first battery group 411 and the normally working third battery group 413 as loads, thereby ensuring the output power of the solar cell module 400.

[0155] If the second battery pack 412 and at least one third battery pack 413 are working abnormally, at least one third battery pack 413 and the first battery pack 411 are working normally, and the abnormally working third battery pack 413 is located between the normally working third battery pack 413 and the first battery pack 411, refer to Fig.30 , connect the first positive electrode connection terminal 421+ to the positive electrode connector 450, connect the third positive electrode connection terminal 441+ and the third negative electrode connection terminal 441- connected to the abnormally working third battery group 413 to the two ends of the short-circuit connector 370 respectively, and connect the third negative electrode connection terminal 441+ connected to the normally working third battery group 413 to the negative electrode connector 460. In this way, the abnormally working second battery group 412 is disconnected and isolated, and the abnormally working third battery group 413 is short-circuited and isolated, so as to avoid the abnormally working second battery group 412 and the third battery group 413 from burning the second junction box 430, the third junction box 440 and the solar cell module 400 due to problems such as hidden cracks, and the abnormally working second battery group 412 and the third battery group 413 will not consume the electric energy of the first battery group 411 and the normally working third battery group 413 as loads, thereby ensuring the output power of the solar cell module 400.

[0156] If the first battery pack 411 and the second battery pack 412 work abnormally, at least one third battery pack 413 works normally. Fig.31, the third positive connection terminal 441+ connected to the normally working third battery group 413 is connected to the positive connector 450, and the third negative connection terminal 441- connected to the normally working third battery group 413 is connected to the negative connector 460. In this way, the abnormally working first battery group 411 and the second battery group 412 are disconnected and isolated, so as to avoid the first battery group 411 and the second battery group 412 from burning the first junction box 420, the second junction box 430 and the solar cell module 400 due to problems such as hidden cracks, and the abnormally working first battery group 411 and the second battery group 412 will not consume the electric energy of the normally working third battery group 413 as a load, which ensures the output power of the solar cell module 400. In this case, if the abnormally working third battery group 413 is located between two adjacent normally working third battery groups 413, the abnormally working third battery group 413 can also be short-circuited by a short-circuit connector 470, which will not be listed here one by one.

[0157] In any of the solar cell assemblies mentioned in the embodiments of the present invention, when any battery group has problems such as hidden cracks, the connection position of the positive connector, the negative connector or the circuit breaker connector with the first junction box, the second junction box or the third junction box can be adjusted to disconnect or short-circuit the abnormally working battery group, thereby avoiding the corresponding junction box and the solar cell assembly from burning, thereby ensuring the safety of the power station. The abnormally working battery group will not consume the electric energy of the solar cell assembly, thereby ensuring the output power of the solar cell assembly, and then ensuring the output power of the power station. According to the technical solution of the embodiments of the present invention, the flexibility of the solar cell assembly can be improved, the maintenance cost can be reduced, the maintenance efficiency can be improved, and then the optimal performance of the solar cell assembly can be brought into play, which can meet the needs of various actual application environments.

[0158] The ninth aspect of the embodiments of the present invention provides a power station, which includes at least two solar cell modules connected in series, or the power station includes at least two solar cell modules connected in parallel. The solar cell module can be any of the solar cell modules mentioned in the first aspect, the third aspect, the fifth aspect and the seventh aspect of the embodiments of the present invention. Specifically, the power station may include a first solar cell module and a second solar cell module, and the negative pole connector of the first solar cell module may be connected to the positive pole connector of the second solar cell module so that the two are connected in series. And / or, the power station may include a first solar cell module and a second solar cell module, and the positive pole connector of the first solar cell module may be connected to the positive pole connector of the second solar cell module, and the negative pole connector of the first solar cell module may be connected to the negative pole of the second solar cell module so that the two are connected in parallel.

[0159] In the power station provided by the embodiment of the present invention, when a battery group of any solar cell module in the power station has problems such as hidden cracks, the connection position of the positive connector, the negative connector or the disconnecting connector with the first junction box, the second junction box or the third junction box can be adjusted to disconnect or short-circuit the abnormally working battery group, thereby avoiding the corresponding junction box and the solar cell module from burning, thereby ensuring the safety of the power station. The abnormally working battery group will not consume the electric energy of the solar cell module, thereby ensuring the output power of the solar cell module, and further ensuring the output power of the power station.

[0160] The embodiments of the present invention also provide some technical solutions, which are as follows:

[0161] Technical Solution 11. The solar cell assembly 300 according to Technical Solution 10, wherein the third positive electrode connection terminal 341+ and the third negative electrode connection terminal 341 − are pluggably connected to the short-circuit connector 370 .

[0162] Technical Solution 12. The solar cell assembly 300 according to Technical Solution 10, wherein the solar cell assembly 300 further comprises:

[0163] A positive electrode disposed near the first edge 301,

[0164] A negative electrode disposed near the second edge 302,

[0165] a first junction box 320 connected in parallel with the first battery pack 311, and

[0166] A second junction box 330 connected in parallel with the second battery pack 312,

[0167] The first junction box 320 includes a first positive connection terminal 321+ and a first negative connection terminal 321-, the second junction box 330 includes a second positive connection terminal 331+ and a second negative connection terminal 331-, a positive connector 350 is connected to the first positive connection terminal 321+, and a negative connector 360 is connected to the second negative connection terminal 331-.

[0168] Technical Solution 13. The solar cell assembly 300 according to Technical Solution 12, wherein the first junction box 320, the second junction box 330 and the third junction box 340 have the same structure, and the third junction box 340 comprises: a third box body 342,

[0169] a third positive conductor 343+ disposed in the third box body 342 and electrically connected to the third positive electrode connection terminal 341+,

[0170] A third negative conductor 343- disposed in the third box body 342 and electrically connected to the third negative electrode connection terminal 341-,

[0171] A third unidirectional conductive member 344 connected between the third positive conductor 343+ and the third negative conductor 343-,

[0172] Among them, the third unidirectional conductive member 344 is conductive along the direction of the third negative conductor 343- pointing to the third positive conductor 343+; the third positive conductor 343+ is electrically connected to the positive pole of the third battery group 313 through the bus bar, and the third negative conductor 343- is electrically connected to the negative pole of the third battery group 313 through the bus bar.

[0173] Technical Solution 14. According to the solar cell assembly 300 described in Technical Solution 10, the third junction box 340 also includes: a third positive electrode waterproof seal 345 that can cover the third positive electrode connection terminal 341+ and a third negative electrode waterproof seal 346 that can cover the third negative electrode connection terminal 341-.

[0174] Technical solution 15. A solar cell assembly 400, comprising:

[0175] The first edge 401,

[0176] a second edge 402 opposite to the first edge 401,

[0177] A positive electrode disposed near the first edge 401,

[0178] A negative electrode disposed near the second edge 402,

[0179] A battery array 410 includes a first battery group 411 near the first edge 401, a second battery group 412 near the second edge 402, and at least two third battery groups 413 connected in series between the first battery group 411 and the second battery group 412,

[0180] a first junction box 420 connected in parallel with the first battery pack 411,

[0181] a second junction box 430 connected in parallel with the second battery pack 412, and

[0182] A third junction box 440 connected in parallel with each of the third battery packs 413,

[0183] The first junction box 420 includes a first positive connection terminal 421+ and a first negative connection terminal 421-, the second junction box 430 includes a second positive connection terminal 431+ and a second negative connection terminal 431-, the third junction box 440 includes a third positive connection terminal 441+ and a third negative connection terminal 441-, a positive connector 450 is connected to the first positive connection terminal 421+ or the second positive connection terminal 431+ or the third positive terminal 441+, a negative connector 460 is connected to the first negative connection terminal 421- or the second negative connection terminal 431- or the third negative connection terminal 441-, or a short-circuit connector 470 is connected to the third positive connection terminal 441+ and the third negative connection terminal 441-.

[0184] Technical Solution 16. A method for using the solar cell assembly 100 according to Technical Solution 1, wherein the method comprises:

[0185] If the first battery pack 111 and the second battery pack 112 work normally, the positive connector 140 is connected to the first positive connection terminal 121+, and the negative connector 150 is connected to the second negative connection terminal 131-;

[0186] If the first battery pack 111 works abnormally and the second battery pack 112 works normally, the positive connector 140 is connected to the second positive connection terminal 131+, and the negative connector 150 is connected to the second negative connection terminal 131-;

[0187] If the first battery pack 111 works normally and the second battery pack 112 works abnormally, the positive connector 140 is connected to the first positive connection terminal 121+, and the negative connector 150 is connected to the first negative connection terminal 121-.

[0188] Technical solution 17. A method for using the solar cell assembly 200 according to technical solution 5, wherein the method comprises:

[0189] If the first battery pack 211, the second battery pack 212 and the third battery pack 213 work normally, the positive connector 250 is connected to the first positive connection terminal 221+, and the negative connector 260 is connected to the second negative connection terminal 231-;

[0190] If the first battery pack 211 works abnormally, and the second battery pack 212 and the third battery pack 213 work normally, the positive connector 250 is connected to the third positive connection terminal 241+, and the negative connector 260 is connected to the second negative connection terminal 231-;

[0191] If the first battery pack 211 and the third battery pack 213 work normally, and the second battery pack 212 works abnormally, the positive connector 250 is connected to the first positive connection terminal 221+, and the negative connector 260 is connected to the third negative connection terminal 241-;

[0192] If the first battery pack 211 works normally, and the second battery pack 212 and the third battery pack 213 work abnormally, the positive connector 250 is connected to the first positive connection terminal 221+, and the negative connector 260 is connected to the first negative connection terminal 221-;

[0193] If the second battery pack 212 works normally, and the first battery pack 211 and the third battery pack 213 work abnormally, the positive connector 250 is connected to the second positive connection terminal 231+, and the negative connector 260 is connected to the second negative connection terminal 231-;

[0194] If the third battery pack 213 works normally, and the first battery pack 211 and the second battery pack 212 work abnormally, the positive connector 250 is connected to the third positive connection terminal 241+, and the negative connector 260 is connected to the third negative connection terminal 241-.

[0195] Technical solution 18. The method according to technical solution 17, wherein the method further comprises:

[0196] If the third battery group 213 works abnormally, the first battery group 211 and the second battery group 212 work normally, the third positive connection terminal 241+ and the third negative connection terminal 241- are connected to the short-circuit connector 270, the positive connector 250 is connected to the first positive connection terminal 221+, and the negative connector 260 is connected to the second negative connection terminal 231-.

[0197] Technical solution 19. A method for using the solar cell assembly 300 according to technical solution 10, wherein the method comprises:

[0198] If the third battery pack 313 works abnormally, the third positive electrode connection terminal 341+ and the third negative electrode connection terminal 341 − are connected to two ends of the short-circuit connector 370 respectively.

[0199] Technical Solution 20. The method according to Technical Solution 19, wherein the solar cell assembly 300 further comprises: a positive electrode disposed near the first edge 301, a negative electrode disposed near the second edge 302, a first junction box 320 connected in parallel with the first battery group 311, and a second junction box 330 connected in parallel with the second battery group 312, wherein the first junction box 320 comprises a first positive electrode connection terminal 321+ and a first negative electrode connection terminal 321-, and the second junction box 330 comprises a second positive electrode connection terminal 331+ and a second negative electrode connection terminal 331-; the method further comprises:

[0200] If the first battery pack 311 and the second battery pack 312 work normally, the positive connector 350 is connected to the first positive connection terminal 321+, and the negative connector 360 is connected to the second negative connection terminal 331-.

[0201] Technical solution 21. A method for using the solar cell assembly 400 according to technical solution 15, wherein the method comprises:

[0202] If the first battery pack 411, the second battery pack 412 and all the third battery packs 413 are operating normally, the first positive connection terminal 421+ is connected to the positive connector 450, and the second negative connection terminal 431- is connected to the negative connector 460;

[0203] If the first battery pack 411 and the second battery pack 412 work normally, and at least one of the third battery packs 413 works abnormally, the first positive connection terminal 421+ is connected to the positive connector 450, the second negative connection terminal 431- is connected to the negative connector 460, and the third positive connection terminal 441+ and the third negative connection terminal 441- connected to the abnormally working third battery pack 413 are respectively connected to the two ends of the short-circuit connector 470;

[0204] If the first battery group 411 works abnormally, at least one of the third battery group 413 and the second battery group 412 works normally, the third battery group 413 that works normally is adjacent to the second battery group 412 or the third battery group 413 that is closest to the first battery group 411 and works normally and the other third battery groups 413 between the second battery group 412 all work normally, the third positive connection terminal 441+ connected to the third battery group 413 that is closest to the first battery group 411 and works normally is connected to the positive connector 450, and the second negative connection terminal 431- is connected to the negative connector 460;

[0205] If the first battery pack 411 and at least one third battery pack 413 are working abnormally, at least one of the third battery packs 413 and the second battery pack 412 are working normally, and the abnormally working third battery pack 413 is located between the normally working third battery pack 413 and the second battery pack 412, the third positive connection terminal 441+ connected to the normally working third battery pack 413 is connected to the positive connector 450, the third positive connection terminal 441+ and the third negative connection terminal 441- connected to the abnormally working third battery pack 413 are connected to the two ends of the short-circuit connector 470 respectively, and the second negative connection terminal 431- is connected to the negative connector 460;

[0206] If the second battery group 412 works abnormally, at least one of the third battery groups 413 and the first battery group 411 works normally, the third battery group 413 that works normally is adjacent to the first battery group 411 or is closest to the second battery group 412 and other third battery groups 413 between the third battery group 413 that works normally and the first battery group 411 all work normally, connect the first positive connection terminal 421+ to the positive connector 450, and connect the third negative connection terminal 441- connected to the third battery group 413 that is closest to the second battery group 412 and works normally to the negative connector 460;

[0207] If the second battery pack 412 and at least one third battery pack 413 are working abnormally, at least one of the third battery packs 413 and the first battery pack 411 are working normally, and the abnormally working third battery pack 413 is located between the normally working third battery pack 413 and the first battery pack 411, the first positive connection terminal 421+ is connected to the positive connector 450, the third positive connection terminal 441+ and the third negative connection terminal 441- connected to the abnormally working third battery pack 413 are respectively connected to the two ends of the short-circuit connector 470, and the third negative connection terminal 441- connected to the normally working third battery pack 413 is connected to the negative connector 460;

[0208] If the first battery group 411 and the second battery group 412 are working abnormally, and at least one of the third battery groups 413 is working normally, the third positive connection terminal 441+ connected to the third battery group 413 working normally will be connected to the positive connector 450, and the third negative connection terminal 441- connected to the third battery group 413 working normally will be connected to the negative connector 460.

[0209] Technical Solution 22. A power station, comprising:

[0210] At least two solar cell modules according to any one of technical solutions 1-15 connected in series; and / or at least two solar cell modules according to any one of technical solutions 1-15 connected in parallel.

[0211] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may occur depending on design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A solar cell assembly (100), comprising: The first edge (101), a second edge (102) opposite to the first edge (101), a positive electrode (103) disposed near the first edge (101), a negative electrode (104) disposed near the second edge (102), A battery array (110) comprising a first battery group (111) close to the first edge (101) and a second battery group (112) close to the second edge (102) and connected in series with the first battery group (111), a first junction box (120) connected in parallel with the first battery pack (111), and a second junction box (130) connected in parallel with the second battery pack (112), The first junction box (120) includes a first positive electrode connection terminal (121+) and a first negative electrode connection terminal (121-), the second junction box (130) includes a second positive electrode connection terminal (131+) and a second negative electrode connection terminal (131-), a positive electrode connector (140) is connected to the first positive electrode connection terminal (121+) or the second positive electrode connection terminal (131+), and a negative electrode connector (150) is connected to the first negative electrode connection terminal (121-) or the second negative electrode connection terminal (131-). 0); the first positive connection terminal (121+) or the second positive connection terminal (131+) is pluggable and connected to the positive connector (140); the first negative connection terminal (121-) or the second negative connection terminal (131-) is pluggable and connected to the negative connector (150); the first external connection terminal (143) in the positive connector (140) is a male connector, and the second external connection terminal (153) in the negative connector (150) is a female connector that matches the first external connection terminal (143); The first junction box (120) and the second junction box (130) have the same structure, and the first junction box (120) comprises: a first box body (122), the first positive electrode connection terminal (121+) and the first negative electrode connection terminal (121-) are both arranged on the first box body (122), and no cable is arranged between the first positive electrode connection terminal (121+) and the first box body (122), and no cable is arranged between the first negative electrode connection terminal (121-) and the first box body (122); The first junction box (120) further comprises: a first positive electrode waterproof seal (125) that can cover the first positive electrode connection terminal (121+) and a first negative electrode waterproof seal (126) that can cover the first negative electrode connection terminal (121-); the first positive electrode waterproof seal (125) and the first negative electrode waterproof seal (126) are in a cap-shaped structure.

2. The solar cell assembly (100) according to claim 1, wherein: The first junction box (120) further comprises: a first positive conductor (123+) disposed in the first box body (122) and electrically connected to the first positive electrode connection terminal (121+), a first negative conductor (123-) disposed in the first box body (122) and electrically connected to the first negative electrode connection terminal (121-), a first unidirectional conductive member (124) connected between the first positive conductor (123+) and the first negative conductor (123-), The first unidirectional conductive member (124) is conductive in a direction from the first negative conductor (123-) to the first positive conductor (123+); the first positive conductor (123+) is electrically connected to the positive electrode of the first battery group (111) through a bus bar, and the first negative conductor (123-) is electrically connected to the negative electrode of the first battery group (111) through a bus bar.

3. A solar cell assembly (200), comprising: The first edge (201), a second edge (202) opposite to the first edge (201), a positive electrode (203) disposed near the first edge (201), a negative electrode (204) disposed near the second edge (202), A battery array (210) comprising a first battery group (211) close to the first edge (201), a second battery group (212) close to the second edge (202), and a third battery group (213) connected in series between the first battery group (211) and the second battery group (212), a first junction box (220) connected in parallel with the first battery group (211), a second junction box (230) connected in parallel with the second battery pack (212), and a third junction box (240) connected in parallel with the third battery pack (213), The first junction box (220) includes a first positive electrode connection terminal (221+) and a first negative electrode connection terminal (221-), the second junction box (230) includes a second positive electrode connection terminal (231+) and a second negative electrode connection terminal (231-), the third junction box (240) includes a third positive electrode connection terminal (241+) and a third negative electrode connection terminal (241-), a positive electrode connector (250) is connected to the first positive electrode connection terminal (221+) or the second positive electrode connection terminal (231+) or the third positive electrode connection terminal (241+), and a positive electrode connector (250) is connected to the first negative electrode connection terminal (221-) or the second negative electrode connection terminal (231-). or the third negative electrode connection terminal (241-) is connected to a negative electrode connector (260); the first positive electrode connection terminal (221+) or the second positive electrode connection terminal (231+) or the third positive electrode connection terminal (241+) and the positive electrode connector (250) can be plugged and connected; the first negative electrode connection terminal (221-) or the second negative electrode connection terminal (231-) or the third negative electrode connection terminal (241-) and the negative electrode connector (260) can be plugged and connected; the external connection terminal in the positive electrode connector (250) is a male connector, and the external connection terminal in the negative electrode connector (260) is a female connector that matches the external connection terminal in the positive electrode connector (250); The first junction box (220), the second junction box (230) and the third junction box (240) have the same structure, the second junction box (230) comprising: a second box body (232), a second positive electrode connection terminal (231+) and a second negative electrode connection terminal (231-) both being arranged on the second box body (232), and no cable is arranged between the second positive electrode connection terminal (231+) and the second box body (232), and no cable is arranged between the second negative electrode connection terminal (231-) and the second box body (232); The second junction box (230) further comprises: a second positive electrode waterproof seal (235) that can cover the second positive electrode connection terminal (231+) and a second negative electrode waterproof seal (236) that can cover the second negative electrode connection terminal (231-); the second positive electrode waterproof seal (235) and the second negative electrode waterproof seal (236) are in a cap-shaped structure.

4. The solar cell assembly (200) according to claim 3, wherein: The second junction box (230) further comprises: a second positive conductor (233+) disposed in the second box body (232) and electrically connected to the second positive electrode connection terminal (231+), a second negative conductor (233-) disposed in the second box body (232) and electrically connected to the second negative electrode connection terminal (231-), a second unidirectional conductive member (234) connected between the second positive conductor (233+) and the second negative conductor (233-), The second unidirectional conductive member (234) is conductive in a direction from the second negative conductor (233-) to the second positive conductor (233+); the second positive conductor (233+) is electrically connected to the positive electrode of the second battery pack (212) through a bus bar, and the second negative conductor (233-) is electrically connected to the negative electrode of the second battery pack (212) through a bus bar.

5. The solar cell assembly (200) according to claim 3, wherein: The solar cell assembly (200) further comprises: a short-circuit connector (270), the short-circuit connector (270) being connected to the third positive electrode connection terminal (241+) and the third negative electrode connection terminal (241-).

6. A solar cell assembly (300), comprising: The first edge (301), a second edge (302) opposite to the first edge (301), A battery array (310) comprising a first battery group (311) close to the first edge (301), a second battery group (312) close to the second edge (302), and a third battery group (313) connected in series between the first battery group (311) and the second battery group (312); and a third junction box (340) connected in parallel with the third battery pack (313), The third junction box (340) includes a third positive connection terminal (341+) and a third negative connection terminal (341-), and a short-circuit connector (370) is connected to the third positive connection terminal (341+) and the third negative connection terminal (341-), and the short-circuit connector (370) includes a third plug-in terminal (371), a third cable (372) and a fourth plug-in terminal (373) connected in sequence, and the third plug-in terminal (371) is used to be plugged with the third positive connection terminal (341+), and the third cable (372) and the fourth plug-in terminal (373) are connected in sequence. The four plug-in terminals (373) are used for plugging with the third negative electrode connection terminal (341-); the third positive electrode connection terminal (341+) and the third negative electrode connection terminal (341-) can be plug-connected with the short-circuit connector (370); the third plug-in terminal (371) in the short-circuit connector (370) is a structure that matches the third positive electrode connection terminal (341+), and the fourth plug-in terminal (373) in the short-circuit connector (370) is a connector structure that can match the structure of the third negative electrode connection terminal (341-); The solar cell assembly (300) further comprises: a positive electrode disposed near the first edge (301), a negative electrode disposed near the second edge (302), a first junction box (320) connected in parallel with the first battery pack (311), and a second junction box (330) connected in parallel with the second battery group (312), The first junction box (320) includes a first positive electrode connection terminal (321+) and a first negative electrode connection terminal (321-), and the second junction box (330) includes a second positive electrode connection terminal (331+) and a second negative electrode connection terminal (331-). The first junction box (320), the second junction box (330) and the third junction box (340) have the same structure, and the third junction box (340) comprises: a third box body (342), the third positive electrode connection terminal (341+) and the third negative electrode connection terminal (341-) are both arranged on the third box body (342), and no cable is arranged between the third positive electrode connection terminal (341+) and the third box body (342), and no cable is arranged between the third negative electrode connection terminal (341-) and the third box body (342); The third junction box (340) further comprises: a third positive electrode waterproof seal (345) that can cover the third positive electrode connection terminal (341+) and a third negative electrode waterproof seal (346) that can cover the third negative electrode connection terminal (341-); the third positive electrode waterproof seal (345) and the third negative electrode waterproof seal (346) are in a cap-shaped structure.

7. The solar cell assembly (300) according to claim 6, wherein: The solar cell assembly (300) is connected to a positive connector (350) at the first positive connection end (321+), and is connected to a negative connector (360) at the second negative connection end (331-).

8. The solar cell assembly (300) according to claim 7, wherein: The third junction box (340) further includes: a third positive conductor (343+) disposed in the third box body (342) and electrically connected to the third positive electrode connection terminal (341+), a third negative conductor (343-) disposed in the third box body (342) and electrically connected to the third negative electrode connection terminal (341-), a third unidirectional conductive member (344) connected between the third positive conductor (343+) and the third negative conductor (343-), The third unidirectional conductive member (344) is conductive in a direction from the third negative conductor (343-) to the third positive conductor (343+); the third positive conductor (343+) is electrically connected to the positive electrode of the third battery group (313) through a bus bar, and the third negative conductor (343-) is electrically connected to the negative electrode of the third battery group (313) through a bus bar.

9. A solar cell assembly (400), comprising: The first edge (401), a second edge (402) opposite to the first edge (401), a positive electrode disposed near the first edge (401), a negative electrode disposed near the second edge (402), A battery array (410) comprising a first battery group (411) close to the first edge (401), a second battery group (412) close to the second edge (402), and at least two third battery groups (413) connected in series between the first battery group (411) and the second battery group (412), a first junction box (420) connected in parallel with the first battery group (411), a second junction box (430) connected in parallel with the second battery pack (412), and a third junction box (440) connected in parallel to each of the third battery groups (413), The first junction box (420) includes a first positive electrode connection terminal (421+) and a first negative electrode connection terminal (421-), the second junction box (430) includes a second positive electrode connection terminal (431+) and a second negative electrode connection terminal (431-), the third junction box (440) includes a third positive electrode connection terminal (441+) and a third negative electrode connection terminal (441-), a positive electrode connector (450) is connected to the first positive electrode connection terminal (421+) or the second positive electrode connection terminal (431+) or the third positive electrode connection terminal (441+), and a positive electrode connector (450) is connected to the first negative electrode connection terminal (421-) or the second negative electrode connection terminal A negative electrode connector (460) is connected to the third positive electrode connection terminal (441-) or the third negative electrode connection terminal (441-), or a short-circuit connector (470) is connected to the third positive electrode connection terminal (441+) and the third negative electrode connection terminal (441-); the third positive electrode connection terminal (441+) and the third negative electrode connection terminal (441-) are pluggable with the short-circuit connector (470); the plug-in end in the short-circuit connector (470) is a structure that matches the third positive electrode connection terminal (441+), and the plug-in end in the short-circuit connector (370) is a connector structure that can match the structure of the third negative electrode connection terminal (441-); The first junction box (420), the second junction box (430) and the third junction box (440) have the same structure, and the third junction box (440) comprises: a third box body (442), the third positive electrode connection terminal (441+) and the third negative electrode connection terminal (441-) are both arranged on the third box body (442), and no cable is arranged between the third positive electrode connection terminal (441+) and the third box body (442), and no cable is arranged between the third negative electrode connection terminal (441-) and the third box body (442); The first junction box (420) further comprises: a first positive electrode waterproof seal (425) that can cover the first positive electrode connection terminal (421+) and a first negative electrode waterproof seal (126) that can cover the first negative electrode connection terminal (421-); the first positive electrode waterproof seal (125) and the first negative electrode waterproof seal (126) are in a cap-shaped structure; The second junction box (230) further comprises: a second positive electrode waterproof seal (235) that can cover the second positive electrode connection terminal (231+) and a second negative electrode waterproof seal (236) that can cover the second negative electrode connection terminal (231-); the second positive electrode waterproof seal (235) and the second negative electrode waterproof seal (236) are in a cap-shaped structure; The third junction box (340) further comprises: a third positive electrode waterproof seal (345) that can cover the third positive electrode connection terminal (341+) and a third negative electrode waterproof seal (346) that can cover the third negative electrode connection terminal (341-); the third positive electrode waterproof seal (345) and the third negative electrode waterproof seal (346) are in a cap-shaped structure.

10. A method for using the solar cell assembly (100) according to claim 1, wherein: The method comprises: If the first battery pack (111) and the second battery pack (112) operate normally, the positive electrode connector (140) is connected to the first positive electrode connection terminal (121+), and the negative electrode connector (150) is connected to the second negative electrode connection terminal (131-); If the first battery pack (111) works abnormally and the second battery pack (112) works normally, the positive electrode connector (140) is connected to the second positive electrode connection terminal (131+), and the negative electrode connector (150) is connected to the second negative electrode connection terminal (131-); If the first battery pack (111) works normally and the second battery pack (112) works abnormally, the positive electrode connector (140) is connected to the first positive electrode connection terminal (121+), and the negative electrode connector (150) is connected to the first negative electrode connection terminal (121-); The first positive connection terminal (121+) or the second positive connection terminal (131+) can be plugged and connected to the positive connector (140); the first negative connection terminal (121-) or the second negative connection terminal (131-) can be plugged and connected to the negative connector (150); the first external connection terminal (143) in the positive connector (140) is a male connector, and the second external connection terminal (153) in the negative connector (150) is a female connector that matches the first external connection terminal (143); Before the first positive electrode connection terminal (121+) is connected to the positive electrode connector (140) or other components, the first positive electrode waterproof seal (125) is opened or removed to connect the first positive electrode connection terminal (121+) to the positive electrode connector (140); before the first negative electrode connection terminal (121-) is connected to the negative electrode connector (150) or other components, the first negative electrode waterproof seal (126) is opened or removed to connect the first negative electrode connection terminal (121-) to the negative electrode connector (150); the first positive electrode waterproof seal (125) and the first negative electrode waterproof seal (126) are in a cap-shaped structure.

11. A method for using the solar cell assembly (200) according to claim 3, wherein: The method comprises: If the first battery group (211), the second battery group (212) and the third battery group (213) are operating normally, the positive electrode connector (250) is connected to the first positive electrode connection terminal (221+), and the negative electrode connector (260) is connected to the second negative electrode connection terminal (231-); If the first battery group (211) works abnormally, and the second battery group (212) and the third battery group (213) work normally, the positive electrode connector (250) is connected to the third positive electrode connection terminal (241+), and the negative electrode connector (260) is connected to the second negative electrode connection terminal (231-); If the first battery group (211) and the third battery group (213) are working normally, and the second battery group (212) is working abnormally, the positive electrode connector (250) is connected to the first positive electrode connection terminal (221+), and the negative electrode connector (260) is connected to the third negative electrode connection terminal (241-); If the first battery group (211) works normally, and the second battery group (212) and the third battery group (213) work abnormally, the positive electrode connector (250) is connected to the first positive electrode connection terminal (221+), and the negative electrode connector (260) is connected to the first negative electrode connection terminal (221-); If the second battery group (212) works normally, and the first battery group (211) and the third battery group (213) work abnormally, the positive electrode connector (250) is connected to the second positive electrode connection terminal (231+), and the negative electrode connector (260) is connected to the second negative electrode connection terminal (231-); If the third battery pack (213) works normally, and the first battery pack (211) and the second battery pack (212) work abnormally, the positive electrode connector (250) is connected to the third positive electrode connection terminal (241+), and the negative electrode connector (260) is connected to the third negative electrode connection terminal (241-); Wherein, the first positive connection terminal (221+) or the second positive connection terminal (231+) or the third positive connection terminal (241+) can be plugged and connected to the positive connector (250); the first negative connection terminal (221-) or the second negative connection terminal (231-) or the third negative connection terminal (241-) can be plugged and connected to the negative connector (260); the external connection terminal in the positive connector (250) is a male connector, and the external connection terminal in the negative connector (260) is a female connector that matches the external connection terminal in the positive connector (250); When the second positive electrode connection terminal (231+) is connected to the positive electrode connector (250) or other components, the second positive electrode waterproof seal (235) is opened or removed to connect the second positive electrode connection terminal (231+) to the positive electrode connector (250); when the second negative electrode connection terminal (231-) is connected to the negative electrode connector (260) or other components, the second negative electrode waterproof seal (236) is opened or removed to connect the second negative electrode connection terminal (231-) to the negative electrode connector (260); the second positive electrode waterproof seal (235) and the second negative electrode waterproof seal (236) are in a cap-shaped structure.

12. The method according to claim 11, wherein: The method further comprises: If the third battery pack (213) operates abnormally, the first battery pack (211) and the second battery pack (212) operate normally, the third positive connection terminal (241+) and the third negative connection terminal (241-) are connected to the short-circuit connector (270), the positive connector (250) is connected to the first positive connection terminal (221+), and the negative connector (260) is connected to the second negative connection terminal (231-).

13. A method for using the solar cell assembly (300) according to claim 6, wherein: The method comprises: If the third battery pack (313) works abnormally, the third positive connection terminal (341+) and the third negative connection terminal (341-) are respectively connected to the two ends of the short-circuit connector (370); the third positive connection terminal (341+) and the third negative connection terminal (341-) are pluggable with the short-circuit connector (370); the third plug-in terminal (371) in the short-circuit connector (370) is a structure that matches the third positive connection terminal (341+), and the fourth plug-in terminal (373) in the short-circuit connector (370) is a connector structure that can match the structure of the third negative connection terminal (341-); When the third positive electrode connection terminal (341+) is connected to the positive electrode connector (350) or other components, the third positive electrode waterproof seal (345) is opened or removed so that the third positive electrode connection terminal (341+) can be connected to the positive electrode connector (350); when the third negative electrode connection terminal (341-) is connected to the negative electrode connector (360) or other components, the third negative electrode waterproof seal (346) is opened or removed so that the third negative electrode connection terminal (341-) can be connected to the negative electrode connector (360); the third positive electrode waterproof seal (345) and the third negative electrode waterproof seal (346) are in a cap-shaped structure.

14. The method according to claim 13, wherein: The solar cell assembly (300) further comprises: a positive electrode arranged near the first edge (301), a negative electrode arranged near the second edge (302), a first junction box (320) connected in parallel with the first battery group (311), and a second junction box (330) connected in parallel with the second battery group (312), wherein the first junction box (320) comprises a first positive electrode connection terminal (321+) and a first negative electrode connection terminal (321-), and the second junction box (330) comprises a second positive electrode connection terminal (331+) and a second negative electrode connection terminal (331-); the method further comprises: If the first battery pack (311) and the second battery pack (312) operate normally, the positive connector (350) is connected to the first positive connection terminal (321+), and the negative connector (360) is connected to the second negative connection terminal (331-).

15. A method for using the solar cell assembly (400) according to claim 9, wherein: The method comprises: If the first battery group (411), the second battery group (412) and all the third battery groups (413) are operating normally, the first positive electrode connection terminal (421+) is connected to the positive electrode connector (450), and the second negative electrode connection terminal (431-) is connected to the negative electrode connector (460); If the first battery group (411) and the second battery group (412) are working normally, and at least one of the third battery groups (413) is working abnormally, the first positive connection terminal (421+) is connected to the positive connector (450), the second negative connection terminal (431-) is connected to the negative connector (460), and the third positive connection terminal (441+) and the third negative connection terminal (441-) connected to the abnormally working third battery group (413) are respectively connected to the two ends of the short-circuit connector (470); If the first battery group (411) is working abnormally, at least one of the third battery group (413) and the second battery group (412) are working normally, the third battery group (413) working normally is adjacent to the second battery group (412) or is closest to the first battery group (411) and the other third battery groups (413) between the third battery group (413) working normally and the second battery group (412) are all working normally, the third positive connection terminal (441+) connected to the third battery group (413) closest to the first battery group (411) and working normally is connected to the positive connector (450), and the second negative connection terminal (431-) is connected to the negative connector (460); If the first battery group (411) and at least one third battery group (413) are working abnormally, at least one of the third battery groups (413) and the second battery group (412) are working normally, and the abnormally working third battery group (413) is located between the normally working third battery group (413) and the second battery group (412), the third positive connection terminal (441+) connected to the normally working third battery group (413) is connected to the positive connector (450), the third positive connection terminal (441+) and the third negative connection terminal (441-) connected to the abnormally working third battery group (413) are respectively connected to the two ends of the short-circuit connector (470), and the second negative connection terminal (431-) is connected to the negative connector (460); If the second battery group (412) is working abnormally, at least one of the third battery groups (413) and the first battery group (411) are working normally, the third battery group (413) working normally is adjacent to the first battery group (411) or is closest to the second battery group (412) and other third battery groups (413) between the third battery group (413) working normally and the first battery group (411) are all working normally, the first positive connection terminal (421+) is connected to the positive connector (450), and the third negative connection terminal (441-) connected to the third battery group (413) that is closest to the second battery group (412) and working normally is connected to the negative connector (460); If the second battery group (412) and at least one third battery group (413) are working abnormally, at least one of the third battery groups (413) and the first battery group (411) are working normally, and the abnormally working third battery group (413) is located between the normally working third battery group (413) and the first battery group (411), the first positive connection terminal (421+) is connected to the positive connector (450), the third positive connection terminal (441+) and the third negative connection terminal (441-) connected to the abnormally working third battery group (413) are respectively connected to the two ends of the short-circuit connector (470), and the third negative connection terminal (441-) connected to the normally working third battery group (413) is connected to the negative connector (460); If the first battery group (411) and the second battery group (412) are working abnormally, and at least one of the third battery groups (413) is working normally, the third positive connection terminal (441+) connected to the normally working third battery group (413) is connected to the positive connector (450), and the third negative connection terminal (441-) connected to the normally working third battery group (413) is connected to the negative connector (460); The third positive electrode connection terminal (441+) and the third negative electrode connection terminal (441-) are pluggably connected to the short-circuit connector (470); the plug-in terminal in the short-circuit connector (470) is a structure that matches the third positive electrode connection terminal (441+), and the plug-in terminal in the short-circuit connector (370) is a connector structure that can match the structure of the third negative electrode connection terminal (441-); Before the first positive electrode connection terminal (121+) is connected to the positive electrode connector (140) or other components, the first positive electrode waterproof seal (125) is opened or removed to connect the first positive electrode connection terminal (121+) to the positive electrode connector (140); before the first negative electrode connection terminal (121-) is connected to the negative electrode connector (150) or other components, the first negative electrode waterproof seal (126) is opened or removed to connect the first negative electrode connection terminal (121-) to the negative electrode connector (150); the first positive electrode waterproof seal (125) and the first negative electrode waterproof seal (126) are in a cap-shaped structure; When the second positive electrode connection terminal (231+) is connected to the positive electrode connector (250) or other components, the second positive electrode waterproof seal (235) is opened or removed to connect the second positive electrode connection terminal (231+) to the positive electrode connector (250); when the second negative electrode connection terminal (231-) is connected to the negative electrode connector (260) or other components, the second negative electrode waterproof seal (236) is opened or removed to connect the second negative electrode connection terminal (231-) to the negative electrode connector (260); the second positive electrode waterproof seal (235) and the second negative electrode waterproof seal (236) are in a cap-shaped structure; When the third positive electrode connection terminal (341+) is connected to the positive electrode connector (350) or other components, the third positive electrode waterproof seal (345) is opened or removed so that the third positive electrode connection terminal (341+) can be connected to the positive electrode connector (350); when the third negative electrode connection terminal (341-) is connected to the negative electrode connector (360) or other components, the third negative electrode waterproof seal (346) is opened or removed so that the third negative electrode connection terminal (341-) can be connected to the negative electrode connector (360); the third positive electrode waterproof seal (345) and the third negative electrode waterproof seal (346) are in a cap-shaped structure.

16. A power station, comprising: At least two solar cell modules according to any one of claims 1 to 9 connected in series; And / or, at least two solar cell modules according to any one of claims 1 to 9 connected in parallel.

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