TWI719497B - Solar module and generating system of using the same - Google Patents

Abstract

A solar module has a solar battery pack with an output positive electrode and an output negative electrode. A first positive electrical output terminal and a second positive electrical output terminal are electrically connected to the output positive electrode. A first negative electrical output terminal and a second negative electrical output terminal are electrically connected to the output negative electrode. The first positive electrical output terminal, the second positive electrical output terminal, the first negative electrical output terminal, and the second negative electrical output terminal are separateness member. The first positive electrical output terminal and the second positive electrical output terminal are configured to be coupled to each other. The first negative electrical output terminal and the second negative electrical output terminal are configured to be coupled to each other. The adjacent two solar modules can be directly connected to the output electrode terminals of the same electrical electrode; so that a solar power generation module circuits are formed in parallel.

Description

Solar power module and solar power system

The present invention relates to the technical field of solar power generation, in particular to solar power generation modules and systems.

Solar modules used to generate electrical energy usually include a plurality of solar power generation units. Through the photovoltaic effect, each solar power generation unit is caused to generate electric energy, and the adjacent solar power generation modules are connected to each other through electrical connection. However, general solar power modules have only two output lines, one of which outputs positive electricity and the other outputs negative electricity. Such modules can only be connected in series, and cannot be connected in parallel to increase the output current.

The technical content disclosed in US Pat. No. 7,445,488 includes an electrical connecting device with a specific structure. Each solar power module has a positive wire and a negative wire, and each of the wires is equipped with a plug connector. The positive wire of each solar power module is connected to one electrical connection device, and the negative wire of each solar power module is connected to another electrical connection device, so that the solar power modules are connected in parallel. However, the configuration and assembly of the previous patent case are inconvenient.

In addition, the technical content disclosed in the US Patent No. 9202955 and the US Patent No. 2011/0100436 all have a return electrical circuit, so adjacent solar power modules cannot be connected to form a parallel connection state.

Furthermore, the technical content disclosed in the US Patent No. 2009/0320389 can connect the solar power generation modules into a parallel circuit. In the previous patent, two side-by-side busses were installed in the solar power module. The two ends of the combiner are respectively provided with a male connector and a female connector, and the two male connectors of the combiner are located in the same direction, and the two female connectors of the combiner are located in the same direction. The two collectors of each solar power module will be different due to tolerances during production and installation. Therefore, when two solar power modules are connected, it is very easy to cause two adjacent solar power modules due to the difference in the position of the two collectors. The assembly of power generation modules cannot be smoothly joined. In addition, the male connector and the female connector of the combiner are both in a fixed state, so the bending freedom of the male connector and the female connector is poor, which further increases the difficulty of joining two adjacent solar power modules.

The object of the present invention is to provide a solar power generation module and system, wherein the solar power generation module has two positive electrode output terminals in the form of independent components and two negative electrode output terminals in the form of independent components; two adjacent solar power generators The modules can be directly connected with each other's positive electrode output terminals and each other's negative electrode output terminals, whereby the combined circuit of the two solar power generation modules can be connected in parallel.

To achieve the above objectives and effects, the present invention discloses a solar battery pack; an output positive electrode and an output negative electrode are electrically connected to the solar battery pack; a first positive output terminal and a second positive output terminal are electrically connected to the solar battery pack Output positive; a first negative output terminal and a second negative output terminal are electrically connected to the output negative; wherein the first positive output terminal, the second positive output terminal, the first negative output terminal and the second Each of the negative output terminals is an independent component, and the first positive output terminal and the second positive output terminal are in a configuration capable of being combined with each other, and the first negative output terminal and the second negative output terminal are capable of being combined with each other Configuration.

The present invention discloses a solar power generation system comprising M solar power generation modules as described above, wherein the first positive electrode output terminal of one solar power generation module and the adjacent one of the other solar power generation module The second positive electrode output terminal is combined, and the first negative output terminal of the solar power module is combined with the second negative electrode output terminal of another adjacent solar power module, so that each solar power module is formed Parallel connection, where M is an integer greater than or equal to two.

The above is based on the objectives and effects disclosed by the present invention, and the preferred embodiments are presented, and the structure of each component and the combination of each component are described in detail in conjunction with the drawings.

10.11: Solar power module

12: Support seat

14: First side

16: second side

20: Solar battery pack

22: Solar cell unit

30: output positive

32: The first positive output terminal

34: The second positive output terminal

40: output negative

42: The first negative output terminal

44: The second negative output terminal

50: wire

60: Junction box

70: Inverter

Figure 1 is a schematic diagram of the appearance of the solar power module of the present invention.

Figure 2 is a schematic diagram of the structure of the first embodiment of the solar power module of the present invention.

FIG. 3 is a schematic structural diagram of the second embodiment of the solar power generation module of the present invention.

FIG. 4 is a schematic structural diagram of the third embodiment of the solar power generation module of the present invention.

Fig. 5 is a schematic structural diagram of the fourth embodiment of the solar power generation module of the present invention.

Figure 6 is a schematic diagram of the combination of two solar power modules of the present invention.

Figure 7 is a schematic diagram of the assembly of the solar power generation system of the present invention.

Please refer to FIG. 1, this embodiment discloses a solar power generation module 10 which is a combination of a support base 12 and a solar cell group 20. The solar cell group 20 is arranged on the support base 12. The solar battery pack 20 includes a plurality of elongated solar battery cells 22, and each of the solar battery cells 22 is connected in series.

Please refer to FIG. 2, the solar power module 10 of this embodiment has an output positive electrode 30 and an output negative electrode 40. The output positive electrode 30 and the output negative electrode 40 are electrically connected to the solar cell group 20. A first positive output terminal 32 and a second positive output terminal 34 are electrically connected to the output anode 30; a first negative output terminal 42 and a second negative output terminal 44 are electrically connected to the output cathode 40.

It is worth noting that the first positive output terminal 32, the second positive output terminal 34, the first negative output terminal 42, and the second negative output terminal 44 are each independent components. The first positive output terminal 32 and the second positive output terminal 34 have a configuration capable of being combined with each other. The first negative power output terminal 42 and the second negative power output terminal 44 have a configuration that can be combined with each other.

For example, the first positive output terminal 32 may be a male connector with a convex structure, and the second positive output terminal 34 may be a female connector with a concave structure. The male connector of the convex configuration can be connected with the female connector of the concave configuration. The first negative output terminal 42 may be a female connector with a concave structure, and the second negative output terminal 44 may be a male connector with a convex structure.

In addition, the periphery of the solar cell group 20 has a first side 14 and a second side 16 different from the first side. For example, the second side 16 may be located on the opposite surface of the first side 14. The first positive output terminal 32 and the first negative output terminal 42 are located on the first side 14, and the second positive output terminal 34 and the second negative output terminal 44 are located on the second side 16. As shown in the figure, the first positive output terminal 32 is close to the first negative output terminal 42, and the second positive output terminal 34 is close to the second negative output terminal 44. According to the diagram, the first positive output terminal 32 and the second positive output terminal 34 are located on the same side (upper side), and the first negative output terminal 42 and the second negative output terminal 44 are located on the same side (lower side). ).

Please refer to Figure 3, the first positive output terminal 32 and the first negative output terminal 42 disclosed in this embodiment are located on the first side 14, the second positive output terminal 34 and the second negative output terminal 44 is located on the second side 16. According to the diagram, the first positive output terminal 32 and the second positive output terminal 34 are located on the same side (upper side), and the first negative output terminal 42 and the second negative output terminal 44 are located on the same side (lower side). . Compared with the previous embodiment (shown in Figure 2), the first positive electrical output terminal 32 and the first negative electrical output terminal 42 of this embodiment are separated by a larger distance, and the second positive electrical output terminal 34 is separated from the first electrical output terminal. The two negative output terminals 44 are separated by a relatively large distance.

Referring to FIG. 4, this embodiment discloses that the periphery of the solar cell group 20 has a first side 14 and a second side 16 different from the first side. For example, the second side 16 is adjacent to the first side. Side 14. The first positive output terminal 32 and the first negative output terminal 42 are located on the first side 14, and the second positive output terminal 34 and the second negative output terminal 44 are located on the second side 16. As shown in the figure, the first positive output terminal 32 is close to the first negative output terminal 42, and the second positive output terminal 34 is close to the second negative output terminal 44.

Please refer to FIG. 5. This embodiment discloses that the solar cell group 20 has a first side 14 on the periphery. The first positive output terminal 32 and the first negative output terminal 42 are located on the first side 14, and the second positive output terminal 34 and the second negative output terminal 44 are also located on the first side 14.

As shown in Figures 2-5, each embodiment of the present invention discloses a connector having four independent components, in particular the first positive output terminal (male connector) 32 and the first negative output terminal ( The female connector) 42 is located on the same side of the solar cell group 20, and the second positive output terminal (female connector) 34 and the second negative electrical output terminal (male connector) 44 are located on the same side of the solar cell group 20. Same side.

In addition, the first positive power output terminal 32, the second positive power output terminal 34, the first negative power output terminal 42, and the second negative power output terminal 44 can all be matched with a wire 50 and the solar power The positive electrode 30 and the negative electrode 40 of the cell group 20 are electrically connected. In addition, the first positive power output terminal 32, the second positive power output terminal 34, the first negative power output terminal 42 and the second negative power output terminal 44 are away from the peripheral side of the solar cell group 20.

Please refer to Figure 6, two adjacent solar power modules 10, 11 are connected to each other, one of which is the first positive output terminal (male connector) 32 of the solar power module 10 is combined with the other solar power module The second positive output terminal (female connector) 34 of the group 11, and the first negative output terminal (female connector) 42 of the solar power generation module 10 are combined with the second second output terminal (female connector) of the other solar power module 11 The negative output terminal (male connector) 44, in this way, the two solar power generation modules 10 and 11 are connected in parallel.

In addition, the resistance between the first positive output terminal 32 and the second positive output terminal 34 is less than 0.5 ohm, and the resistance between the first negative output terminal 42 and the second negative output terminal 44 is less than 0.5 ohm. Therefore, the resistance of the first positive electrode output terminal 32 of the solar power generation module 10 and the second positive electrode output terminal 34 of the other solar power generation module 11 can be even less than 0.5 ohm; the solar power generation module 10 The first negative electrode output terminal 42 of the solar power module 11 is connected to the second negative electrode output terminal 44 of the other solar power module 11 and the resistance can be less than 0.5 ohm. Therefore, the power generation system disclosed in this embodiment has a smaller resistance , Which in turn can increase the current and reduce the system voltage.

Furthermore, the four individual wires 50 shown in the figure can have two sets of colors. For example, the two wires 50 used to connect the first positive output terminal 32 and the second positive output terminal 34 have the same color; The two wires 50 of a negative power output terminal 42 and the second negative power output terminal 44 have the same color, and are different from the color of the wire 50 connecting the positive power output terminals 32 and 34. In this way, the color can be used as a guide when the two solar power modules 10 and 11 are connected to prevent misconnection between the output terminals.

In addition, the specific structure or shape of the output terminal can also be used to prevent misconnection. For example, the first positive electrical output terminal 32 and the second positive electrical output terminal 34 are in a configuration that can be combined with each other, and the first negative electrical output terminal 42 and the second negative electrical output terminal 44 are in a configuration that can be combined with each other; and , The first positive electrical output terminal 32 and the first negative electrical output terminal 42 are in a configuration that cannot be combined with each other, or the second positive electrical output terminal 34 and the second negative electrical output terminal 44 cannot be combined with each other Configuration. Because, only the first positive electrical output terminal 32 and the first negative electrical output terminal 42, or any one of the second positive electrical output terminal 34 and the second negative electrical output terminal 44 is not able to be combined with each other. , That is, it can be found that there is a misconnection, which can achieve the effect of preventing misconnection.

In addition, this embodiment can use the first positive output terminal 32 and the first negative output terminal 34 to have a difference in appearance or color, and can use the second positive output terminal 34 and the second negative output terminal 44 to have an appearance or The difference in color can prevent misconnection, or it can be easily and immediately detected when misconnection.

In addition, the first positive power output terminal 32, the second positive power output terminal 34, the first negative power output terminal 42, and the second negative power output terminal 44 are all connected to a wire 50, so there are two adjacent solar power modules 10 11. Each of the output terminals of 11 can be conveniently connected by the length and flexibility of each of the wires 50.

Please refer to FIG. 7, this embodiment discloses an inventive solar power generation system, which includes M solar power generation modules 10 and 11. The first positive electrode output terminal 32 of one of the solar power generation modules 10 is combined with the second positive electrode output terminal 34 of another adjacent solar power generation module 11, and the first positive electrode output terminal 34 of the solar power generation module 10 A negative output terminal 42 is combined with the second negative electrode output terminal 44 of another adjacent solar power generation module 11 (as shown in FIG. 8), so that each of the solar power generation modules 10 and 11 are connected in parallel, wherein M is an integer greater than or equal to two.

Each of the solar power generation modules 10 and 11 is formed in a combined form, and each of the first positive electrode output terminals 32 and the first negative electrode output terminals 42 of each of the solar power generation modules 11 at the top of the figure can be respectively connected to A junction box 60 connects each of the junction boxes 60 to an inverter 70. Each embodiment of the present invention adopts a thin-film solar cell module or a copper indium gallium selenium (CIGS) solar cell module. The output terminal can use MC4 compatible connectors, and the outer periphery of each output terminal can have an anti-leak ring. The anti-leak ring is made of elastic material and has the effect of compressibility and elastic deformation. Therefore, when the output terminal is connected , The leak-proof ring is located between the two butted output terminals, thereby forming a good sealing and waterproof effect.

Since the electric energy generated by solar power generation is not large, if the internal resistance is consumed again, the solar power generation efficiency will be worse; however, the solar cell group 20 of this embodiment is formed in parallel, so the internal resistance of the entire power generation system is reduced. In addition, the voltage value of the power generation system formed by the solar power generation modules 10 remains unchanged, so the current value generated can be increased.

The above-mentioned embodiments are merely illustrative of the technology and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with this technology can modify and change the above-mentioned embodiments without violating the technical principle and spirit of the present invention. Therefore, the scope of protection of the rights of the present invention should be listed in the scope of patent application described later. .

10: Solar power module

14: First side

16: second side

20: Solar battery pack

30: output positive

32: The first positive output terminal

34: The second positive output terminal

40: output negative

42: The first negative output terminal

44: The second negative output terminal

50: wire

Claims (16)

A solar power generation module includes: a solar battery pack; an output anode, which is electrically connected to the solar battery pack; an output cathode, which is electrically connected to the solar battery pack; and a first positive output terminal, which is electrically connected Connect the output anode; a second positive output terminal electrically connected to the output anode; a first negative output terminal electrically connected to the output cathode; a second negative output terminal electrically connected to the output cathode ; Wherein the first positive output terminal, the second positive output terminal, the first negative output terminal and the second negative output terminal are each independent components, and the first positive output terminal and the second positive The output terminal has a configuration that can be combined with each other, the first negative output terminal and the second negative output terminal have a configuration that can be combined with each other; wherein the first positive output terminal, the second positive output terminal, the first A negative power output terminal and the second negative power output terminal are each connected to a wire, and the first positive power output terminal, the second positive power output terminal, the first negative power output terminal, and the second negative power output terminal are separated from the On the peripheral side of the solar cell group, the two wires used to connect to the first positive output terminal and the second positive output terminal are electrically connected to the output anode; used to connect the first negative output terminal and the second The two wires of the negative output terminal are electrically connected to the output negative electrode. For the solar power module described in item 1 of the scope of patent application, wherein the first positive output terminal is a male connector, the second positive output terminal is a female connector, and the male connector is connected to the female connector. The connectors have a configuration that can be combined with each other. For the solar power module described in item 1 of the scope of patent application, wherein the first negative output terminal is a female connector, the second negative output terminal is a male connector, and the male connector and the female connector It is a configuration that can be combined with each other. A solar power generation module includes: a solar battery pack; an output anode, which is electrically connected to the solar battery pack; an output cathode, which is electrically connected to the solar battery pack; and a first positive output terminal, which is electrically connected Connect the output anode; a second positive output terminal electrically connected to the output anode; a first negative output terminal electrically connected to the output cathode; a second negative output terminal electrically connected to the output cathode ; Wherein the first positive output terminal, the second positive output terminal, the first negative output terminal and the second negative output terminal are each independent components, and the first positive output terminal and the second positive The output terminal has a configuration that can be combined with each other, and the first negative output terminal and the second negative output terminal have a configuration that can be combined with each other; wherein the periphery of the solar cell group has a first side, and the first positive output The terminal and the first negative output terminal are located on the first side, and the second positive output terminal and the second negative output terminal are also located on the first side. For the solar power generation module described in item 1 of the scope of patent application, wherein the periphery of the solar cell group has a first side and a second side, and the first positive output terminal and the first negative output terminal are located on the first side. On one side, the second positive output terminal and the second negative output terminal are located on the second side. The solar power module according to item 5 of the scope of patent application, wherein the first side of the solar cell group is adjacent to the second side. The solar power module according to item 5 of the scope of patent application, wherein the first side of the solar cell group is opposite to the second side. According to the solar power generation module described in item 1 of the scope of patent application, the first positive output terminal and the first negative output terminal are in a configuration that cannot be combined with each other. The solar power generation module described in item 8 of the scope of patent application, wherein the first positive output terminal and the second negative output terminal have different configurations. The solar power generation module described in item 8 of the scope of patent application, wherein the first negative output terminal and the second positive output terminal have different configurations. The solar power generation module described in item 1 of the scope of patent application, wherein the first positive output terminal and the first negative output terminal have a difference in appearance or color. As for the solar power generation module described in item 1 of the scope of patent application, the first positive output terminal is an MC4 compatible connector. The solar power module described in item 1 of the scope of patent application, wherein the solar cell group is a thin-film solar cell group. Such as the solar power module described in item 13 of the scope of patent application, wherein the thin-film solar cell group is a CIGS solar cell group. The solar power generation module described in item 1 of the scope of patent application, wherein the resistance between the first positive output terminal and the second positive output terminal is less than 0.5 ohm; and the first negative output terminal and the second negative output The resistance between the terminals is less than 0.5 ohm. A solar power generation system includes M solar power generation modules as described in claim 1, wherein the first positive electrode output terminal of one solar power generation module and the adjacent first positive electrode output terminal of another solar power generation module are adjacent to each other. The two positive electrode output terminals are combined, and the first negative output terminal of the solar power module is combined with the second negative electrode output terminal of another adjacent solar power module, so that the solar power modules are connected in parallel , Where M is an integer greater than or equal to two.

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