Connector, cable assembly, and photovoltaic system

Abstract

A connector (11) includes: a connection body (300); a first connection assembly (100) including a first connection line (110) and a first insertion member (120), the first connection line (110) being connected to the connection body (300) and located on one side of the connection body (300), the first insertion member (120) being connected to one end of the first connection line (110) away from the connection body (300); and a second connection assembly (200) including a second insertion member (220) located on the other side of the connection body (300), one of the first insertion member (120) and the second insertion member (220) being a male connector and the other being a female connector that can be adapted to the male connector.

Description

[0001] Related applications

[0002] This disclosure claims priority to Chinese patent application No. 2023114269065, filed on October 31, 2023, entitled “Connector, Cable Assembly and Photovoltaic System”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of connector technology, and in particular to a connector, cable assembly, and photovoltaic system. Background Technology

[0004] With the rapid development of new energy technologies, solar energy is increasingly being used in people's production and daily life due to its advantages such as being pollution-free and sustainable. Generally, solar energy can be converted into electrical energy through photovoltaic power generation technology. That is, the direct current generated by photovoltaic power generation is converted into alternating current through an inverter. This alternating current can be input into the power grid through a connector. However, traditional connectors usually have drawbacks such as inconvenient installation. Summary of the Invention

[0005] One technical problem addressed by this disclosure is how to improve the ease of connector installation.

[0006] The first aspect of this disclosure provides a connector, comprising:

[0007] Connecting main body;

[0008] A first connecting component includes a first connecting line and a first insert, wherein the first connecting line is connected to the connecting body and located on one side of the connecting body, and the first insert is connected to the end of the first connecting line away from the connecting body; and

[0009] The second connection component includes a second insert located on the other side of the connection body, wherein one of the first insert and the second insert is a male connector and the other is a female connector that can be adapted to the male connector.

[0010] A second aspect of this disclosure provides a cable assembly including a plurality of connectors as described in any one of the preceding descriptions, wherein a first insertion member and a second insertion member disposed adjacent to each other in two adjacent connectors cooperate with each other.

[0011] A third aspect of this disclosure provides a photovoltaic system including an inverter, a combiner box, and a cable assembly as described in any one of the preceding descriptions, wherein the inverter is connected to the connection body, and the combiner box is connected to the first insertion part of the connector located at the outermost end.

[0012] Details of one or more embodiments of this disclosure are set forth in the following drawings and description. Other features, objects, and advantages of the invention will become apparent from the specification, drawings, and claims. Attached Figure Description

[0013] To better describe and illustrate embodiments and / or examples of the inventions disclosed herein, reference may be made to one or more accompanying drawings. Additional details or examples used to describe the drawings should not be considered as limiting the scope of any of the disclosed inventions, the currently described embodiments and / or examples, or the best mode of these inventions as currently understood.

[0014] Figure 1 This is a schematic diagram of the planar structure of a connector provided in one embodiment.

[0015] Figure 2 This is a schematic diagram of the planar structure of a photovoltaic system provided in one embodiment.

[0016] Figure 3 A schematic diagram of the planar structure of a photovoltaic system provided for another embodiment.

[0017] Figure 4 A simplified circuit diagram of a photovoltaic system provided in one embodiment.

[0018] Figure 5 This is a partial structural diagram of a photovoltaic system with mounting rails provided in another embodiment.

[0019] Figure 6 This is a perspective structural diagram of a connector provided in one embodiment. Detailed Implementation

[0020] To make the above-described objects, features, and advantages of this disclosure more apparent and understandable, specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this disclosure. However, this disclosure can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this disclosure. Therefore, this disclosure is not limited to the specific embodiments disclosed below.

[0021] In the description of this disclosure, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0022] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0024] In this disclosure, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element present. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this disclosure are for illustrative purposes only and do not represent the only possible implementation.

[0026] See Figure 1 , Figure 2 and Figure 3 In one embodiment of this disclosure, a connector 11 is provided that can be applied to photovoltaic power generation technology. The electrical energy generated by the photovoltaic module 50 is input to the inverter 20 in the form of direct current (DC). The inverter 20 converts the DC power from the photovoltaic module 50 into alternating current (AC). The AC power converted by the inverter 20 can be input to the combiner box 30 through the connector 11. The combiner box 30 is then connected to the power grid or directly supplies power to AC loads, so that the electrical energy generated by photovoltaic power generation can be applied to various social life and production activities. It is understood that in a specific embodiment, the number of photovoltaic modules 50, inverters 20, and connectors 11 are equal and form a one-to-one correspondence. The connector 11 includes a first connecting component 100, a second connecting component 200, and a connecting body 300, which is connected to the inverter 20. In a specific embodiment, the combiner box 30 includes a power distribution switch and a gateway controller.

[0027] See Figure 1 , Figure 2 and Figure 3 In some embodiments, the first connecting component 100 includes a first connecting line 110 and a first insert 120. The first connecting line 110 is connected to one end of the connecting body 300, and the first insert 120 is connected to the end of the first connecting line 110 away from the connecting body 300, such that the first insert 120 is located on one side of the connecting body 300. In one specific embodiment, the second connecting component 200 includes a second insert 220, which can be directly connected to the other end of the connecting body 300, such that the second insert 220 is located on the other side of the connecting body 300. In another specific embodiment, the second insert 220 is directly connected to the other end of the connecting body 300 via a connecting line. One of the first insert 120 and the second insert 220 is a male connector and the other is a female connector, which can be adapted to each other. For example, the first insert 120 can be a female connector, and the second insert 220 can be a male connector. See also Figure 1 , Figure 2 and Figure 3In other embodiments, the second connecting component 200 may further include a second connecting line, which is directly connected to the other end of the connecting body 300, and a second insert 220 is connected to the end of the second connecting line away from the connecting body 300. The first insert 120 may be a male connector, and the second insert 220 may be a female connector.

[0028] If both the first insertion piece 120 and the second insertion piece 220 use male or female connectors, when connecting the two connectors 11, they cannot be directly connected. An intermediate connecting component is required to connect adjacent connectors 11, increasing the number of connector terminals and requiring more time for connector insertion during installation. This makes the installation of the two connectors 11 time-consuming and laborious, reducing the convenience of connector installation and thus lowering the work efficiency. Furthermore, if the two connectors 11 are functioning normally but the intermediate connecting component malfunctions, the two connectors 11 will not work properly, increasing the failure rate. Moreover, the presence of the intermediate connecting component makes the entire connection structure more complex and increases the manufacturing cost. The connector provided by this invention uses the fewest connector terminals, eliminating the need for on-site crimping of the cable connection lines. This saves time and improves wiring efficiency during on-site manual cable installation.

[0029] See Figure 1 , Figure 2 and Figure 3 Regarding the connector 11 in the above embodiments, since one of the first insertion member 120 and the second insertion member 220 is a male and the other is a female, the male and female can be matched. When it is necessary to connect two connectors 11, the first insertion member 120 and the second insertion member 220 can be directly mated to achieve a direct connection between the two connectors 11, thus eliminating the need for intermediate connecting components. This eliminates the need for installing intermediate connecting components, thereby improving the ease of installation of connectors 11 and ultimately increasing the efficiency of installation between connectors 11. On the other hand, as long as the two connectors 11 do not malfunction, a normal connection between the two connectors 11 can be achieved, avoiding the impact of intermediate connecting component failure on the normal connection between the two connectors 11, thus reducing the failure rate of the connection between connectors 11. Furthermore, the elimination of intermediate connecting components makes the connection structure formed by connecting multiple connectors 11 structurally simpler, thereby reducing the manufacturing cost of the entire connection structure.

[0030] In harsh environments such as deserts, wind and sand can easily penetrate the threaded connection structure, causing the connector to jam and hindering its connection. The connector with a plug-in structure provided by this invention achieves a snap-fit ​​connection through the mating of the male and female connectors, thus avoiding the problems associated with threaded connections and eliminating the obstruction caused by wind and sand during the connection process between adjacent connectors. Furthermore, compared to the commonly used threaded connection method in existing technologies, the connector provided by this invention does not require on-site crimping; the snap-fit ​​connection is completed directly during installation. This not only saves installation time but also reduces the risk of inconsistent torque assembly leading to high contact resistance, a risk associated with threaded connections. It also avoids a series of risks arising from unprofessional on-site crimping tools resulting in substandard crimping quality.

[0031] See Figure 1 , Figure 2 and Figure 3 In some embodiments, the connecting body 300 includes a wire harness portion 310, which is disposed at the end of the connecting body 300. In one specific embodiment, a connecting hole 311 is formed in the wire harness portion 310, extending axially along the wire harness portion 310. The first connecting wire 110 is inserted into the connecting hole 311, allowing the first connecting wire 110 and the connecting hole 311 to form an interference fit, thereby achieving an interference connection between the first connecting wire 110 and the wire harness portion 310. In other embodiments, the wire harness portion 310 can be a claw structure, which is sleeved on the first connecting wire 110. Therefore, through the function of the wire harness portion 310, bending of the first connecting wire 110 can be avoided, thereby facilitating the fixation of the first connecting wire 110. Furthermore, the wire harness portion 310 can have perforated holes 312 distributed on its outer surface. These perforated holes 312 are through holes, connecting the connecting hole 311 to the outside. By providing the perforated holes 312, the friction between the first connecting wire 110 and the wire harness portion 310 can be reasonably enhanced, further improving the connection strength between them. This also saves materials, thereby reducing manufacturing costs.

[0032] The cable harness portion 310 is generally trumpet-shaped, extending from the second insert 220 towards the first insert 120. The cross-sectional dimensions of the cable harness portion 310 can gradually decrease, resulting in the inner wall of the connection hole being approximately tapered inwards. This allows the cable harness portion 310 to effectively restrain the first connecting wire 110 inserted therein. It also gives the cable harness portion 310 better flexibility and toughness. During the installation of the connector 11, the cable harness portion 310 will reciprocate. Given its superior flexibility and toughness, the reciprocating oscillation of the cable harness portion 310 can prevent the squeezing force on the first connecting wire 110 at the connection point, thus preventing damage to the insulation layer outside the first connecting wire 110 from frequent oscillation. In fact, the part of the first connecting wire 110 subjected to the greatest alternating swaying stress is the connection between the first connecting wire 110 and the connecting body 300, that is, the location of the wire harness 310. By making the wire harness 310 more flexible and tough, the alternating stress at the connection between the first connecting wire 110 and the wire harness 310 can be reduced, preventing the insulation layer of the first connecting wire 110 from cracking due to fatigue caused by the alternating stress. Of course, the flexibility and toughness of the wire harness 310 can be further improved by using the perforated hole 312.

[0033] The first connecting component 100 may also include a wire harness 130, in which the first connecting wire 110 is inserted. Therefore, the wire harness 130 further prevents the first connecting wire 110 from bending. The third connecting component 400 may also include a wire harness 430, thus the wire harness 130 further prevents the third connecting wire 410 from bending. The wire harness 130 of the first connecting component 100, the wire harness 430 of the third connecting component 400, and the wire harness 310 of the connecting body 300 may be structurally identical.

[0034] See Figure 1 , Figure 2 and Figure 3In some embodiments, connector 11 further includes a third connection component 400, which is connected to the middle of connection body 300 and is used to connect to inverter 20, so that AC power output from inverter 20 can be input to first connection component 100 and second connection component 200 via connection body 300 through third connection component 400. Third connection component 400 includes a third connection line 410 and a third insertion member 420. Third connection line 410 is connected to the middle of connection body 300, and third insertion member 420 is connected to the end of third connection line 410 away from connection body 300. Third insertion member 420 is used to cooperate with inverter 20. In other embodiments, third connection component 400 may only include third insertion member 420, thereby omitting third connection line 410, and third insertion member 420 is directly connected to the middle of connection body 300.

[0035] In some embodiments, the extending directions of the first connecting component 100 and the second connecting component 200 may be located on the same straight line, and the extending direction of the third connecting component 400 may be set at an angle of 30° to 150° with the extending direction of the first connecting component 100. For example, the value of this angle may be 30°, 50°, 60°, 90°, or 150°. When the angle is 90°, the extending direction of the third connecting component 400 is perpendicular to the extending directions of both the first connecting component 100 and the second connecting component 200. This can appropriately simplify the manufacturing process of the connector 11, thereby reducing the manufacturing cost of the connector 11, and also facilitate the connection between the connectors 11 and the connection between the connector 11 and the inverter 20.

[0036] In some embodiments, taking the connection position between the third connecting component 400 and the connecting body 300 as a reference position, the distances from the first insertion member 120 and the second insertion member 220 to this reference position are not equal. This allows for an asymmetrical arrangement of the first insertion member 120 and the second insertion member 220 relative to the third connecting component 400, which improves the flexibility of installation between the connectors 11 and thus enhances the ease of installation of the connectors 11.

[0037] In some embodiments, the length of the first connecting line 110 can be greater than or equal to the length of the third connecting line 410, thus ensuring flexibility in the installation of the connectors 11 and improving the ease of installation. The length of the first connecting line 110 can be from 1m to 5m, for example, the length of the first connecting line 110 can be 1m, 2m, 3m, or 5m. Preferably, the length of the first connecting line 110 can be 1.3m, 2.3m, or 4.6m. The length of the third connecting line 410 can be from 0.1m to 0.5m, for example, the length of the third connecting line 410 can be 0.1m, 0.2m, 0.3m, or 0.5m.

[0038] See Figure 1 , Figure 2 and Figure 3 In some embodiments, the connecting body 300 includes a wire harness portion 310, which is disposed in the middle of the connecting body 300. A connecting hole 311 is formed within the wire harness portion 310, extending axially along the wire harness portion 310. A third connecting wire 410 is inserted into the connecting hole 311, allowing the third connecting wire 410 and the connecting hole 311 to form an interference fit, thereby achieving an interference connection between the third connecting wire 410 and the wire harness portion 310. Therefore, the wire harness portion 310 prevents the third connecting wire 410 from bending, thus facilitating the fixation of the third connecting wire 410. Furthermore, the wire harness portion 310 may have a perforated hole 312. The perforated hole 312 is distributed on the outer surface of the wire harness portion 310. The perforated hole 312 is a through hole, which connects the connecting hole 311 to the outside. By setting the perforated hole 312, the friction between the third connecting line 410 and the wire harness portion 310 can be reasonably enhanced, thereby further improving the connection strength between the third connecting line 410 and the wire harness portion 310.

[0039] In some embodiments, the second insertion member 220 and the third insertion member 420 have the same structure. During the manufacturing process of the connector 11, the second insertion member 220 and the third insertion member 420 can be formed using molds with the same structure, which can reduce the design and manufacturing costs of mold development, thereby reducing the manufacturing cost of the connector 11.

[0040] See Figure 2 , Figure 3 and Figure 4In some embodiments, the first connecting line 110 includes a neutral wire 101 and a live wire 102, and the third connecting line 410 also includes a neutral wire 101 and a live wire 102. The neutral wire 101 of the first connecting line 110 is electrically connected to the neutral wire 101 of the third connecting line 410 through the circuit structure of the connecting body 300. The neutral wire circuit in the second insert 220 is electrically connected to the neutral wire 101 of the third connecting line 410 through the circuit structure of the connecting body 300. The live wire 102 of the first connecting line 110 is electrically connected to the live wire 102 of the third connecting line 410 through the circuit structure of the connecting body 300. The live wire circuit in the second insert 220 is electrically connected to the live wire 102 of the third connecting line 410 through the circuit structure of the connecting body 300. Furthermore, the first connecting line 110 may also include a ground wire 103, and the third connecting line 410 may also include a ground wire 103. The ground wire 103 of the first connecting line 110 is electrically connected to the ground wire 103 of the third connecting line 410 through the circuit structure of the connecting body 300. The ground wire 103 circuit in the second insert 220 is electrically connected to the ground wire 103 of the third connecting line 410 through the circuit structure of the connecting body 300. In other embodiments, for example, both the first connecting line 110 and the third connecting line 410 may include two live wires 102, or both the first connecting line 110 and the third connecting line 410 may include two live wires 102 and a ground wire 103.

[0041] See Figure 1 and Figure 6 In some embodiments, the first insert 120 can be formed using a double-layer injection molding process. That is, the first insert 120 may include two layers of material, referred to as the first layer 211 and the second layer 212, respectively. The hardness of the first layer 211 is greater than that of the second layer 212. The first layer 211 at least partially covers the second layer 212. For example, the first layer 211 may cover the second layer 212, such that a portion of the second layer 212 is outside the first layer 211; or the first layer 211 may cover the entire second layer 212, such that the entire second layer 212 is entirely within the first layer 211. The first connecting wire 110 is inserted into the first layer 211. By having the harder first layer 211 wrap around the softer second layer 212, the wear resistance of the first insert 120 can be improved, increasing its service life. Furthermore, the connection strength between the first insert 120 and the first connecting wire 110 can be increased.

[0042] See Figure 1 and Figure 6In some embodiments, the second insert 220 may adopt the same design pattern as the first insert 120, that is, the second insert 220 is also formed by a double-layer injection molding process, that is, the second insert 220 may include two layers of material, which are respectively referred to as the first layer 211 and the second layer 212. The hardness of the first layer 211 is greater than that of the second layer 212, and the first layer 211 at least covers part of the second layer 212.

[0043] See Figure 2 This disclosure also provides a cable assembly 10, which includes a plurality of connectors 11 that can be sequentially connected along a straight line. During connection, adjacent first insertion parts 120 and second insertion parts 220 of two adjacent connectors 11 cooperate with each other; therefore, non-adjacent first insertion parts 120 and second insertion parts 220 of two adjacent connectors 11 do not cooperate with each other. Since any two adjacent connectors 11 in the cable assembly 10 can be directly connected, the use of intermediate connecting components is eliminated. This eliminates the need for intermediate connecting components, improving the ease of installation of the cable assembly 10 and ultimately increasing its installation efficiency. Furthermore, as long as the connectors 11 do not malfunction, the cable assembly 10 can be connected normally, avoiding the impact of intermediate connecting component failures on the normal connection, thus reducing the failure rate of the cable assembly 10. Moreover, the elimination of intermediate connecting components simplifies the structure of the cable assembly 10, thereby reducing the overall manufacturing cost.

[0044] See Figure 3 In some embodiments, the cable assembly 10 may further include an extension cable 12, the length of which can be from 0.5m to 30m, for example, the length of the extension cable 12 can be 0.5m, 1m, 10m, or 15m, etc. Given that the third connection assembly 400 is directly connected to the inverter 20, under certain special operating conditions, the spacing between two adjacent photovoltaic modules and / or inverters 20 is large, resulting in a large spacing between two adjacent connectors 11 connected to the two inverters 20. This causes the first insertion piece 120 and the second insertion piece 220 of the two adjacent connectors 11 to be unable to connect due to excessive spacing. In this case, the extension cable 12 connects one end to the first insertion piece 120 of one connector 11 and the other end to the second insertion piece 220 of the other connector 11. This solves the problem of the two connectors 11 being unable to connect due to excessive spacing, thereby improving the adaptability of the cable assembly 10 to both conventional and complex installation environments.

[0045] In some embodiments, the extension cable 12 is connected to the connector 11 located at the far end. For example, the second insertion part 220 of one of the connectors 11 located at the far end (e.g., the rightmost end) may be provided with a rubber plug for sealing protection to achieve an IP68 rating. The extension cable 12 may be connected between the first insertion part 120 of the other connector 11 located at the far end (e.g., the leftmost end) and the junction box 30.

[0046] See Figure 2 and Figure 3 This disclosure also provides a photovoltaic system 40, which includes the aforementioned cable assembly 10, inverter 20, and combiner box 30. Clearly, the third connection components 400 of different connectors 11 within the cable assembly 10 are connected to different inverters 20. The direct current generated by photovoltaic power generation is converted into alternating current by the inverters 20, and the alternating current can be connected to the power grid through the cable assembly 10. The combiner box 30 is connected to the connector 11 located at the outermost end of the cable assembly 10, that is, the combiner box 30 is connected to the first insertion part 120 of the outermost connector 11, thus enabling the photovoltaic system 40 to achieve functional diversification.

[0047] See Figure 2 and Figure 3 In some embodiments, the inverter 20 includes a fourth insertion member 21, which engages with the third insertion member 420 in the connector 11 to establish a connection between the inverter 20 and the connector 11. The fourth insertion member 21 has the same structure as the first insertion member 120. During the manufacturing process of the photovoltaic system 40, the first insertion member 120 and the fourth insertion member 21 can be molded using the same mold, thus reducing the design and manufacturing costs of the mold and consequently lowering the manufacturing cost of the photovoltaic system 40.

[0048] See Figure 5 In some embodiments, the photovoltaic system 40 may further include a mounting rail 41, which extends in a straight line. The cable assembly 10 is fixed to the mounting rail 41, and the extension direction of the first connecting line 110 is the same as that of the mounting rail 41. This avoids tangling and interference between the first connecting lines 110 of adjacent connectors 11, resulting in a simple and aesthetically pleasing design and facilitating the orderly installation of the photovoltaic system 40, thus improving the assembly efficiency of the photovoltaic system 40. The inverter 20 is fixedly connected to the mounting rail 41, allowing the mounting rail 41 to serve as a support for the inverter 20, ensuring the stability and reliability of the inverter 20 installation. The photovoltaic module 50 can be fixed to the mounting rail 41, and the length of the third connecting line 410 can be 0.1m to 0.5m, for example, 0.1m, 0.2m, 0.3m, or 0.5m, to ensure proper connection between the inverter 20 and the photovoltaic module 50.

[0049] In some embodiments, the inverter 20 is a microinverter, which can provide maximum power point control to the photovoltaic module 50, maximizing the AC power output of the microinverter and thereby improving the energy conversion and transmission efficiency of the photovoltaic system 40. Furthermore, unlike the high-voltage direct current generated by a centralized inverter, the microinverter can generate low-voltage AC power that can be directly connected to the grid, thereby improving the safety of the photovoltaic system 40 and its energy conversion and transmission efficiency.

[0050] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the scope of protection of this disclosure. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A connector, wherein, include: Connecting main body; A first connecting component includes a first connecting line and a first insert, wherein the first connecting line is connected to the connecting body and located on one side of the connecting body, and the first insert is connected to the end of the first connecting line away from the connecting body; and The second connection component includes a second insertion member located on the other side of the connection body. One of the first insertion member and the second insertion member is a male connector and the other is a female connector that can be adapted to the male connector. It also includes a third connection component, which is connected to the connection body and is used to cooperate with the inverter; The third connection component includes a third connection line and a third insertion piece. The third connection line is connected to the middle part of the connection body, and the third insertion piece is connected to the end of the third connection line away from the connection body. The third insertion piece is used to cooperate with an inverter.

2. The connector according to claim 1, wherein, The second insert is directly connected to the end of the connecting body.

3. The connector according to claim 1, wherein, Both the first connecting line and the third connecting line include a neutral wire and a live wire or two live wires, or both the first connecting line and the third connecting line include a neutral wire, a live wire and a ground wire, or both the first connecting line and the third connecting line include two live wires and a ground wire.

4. The connector according to claim 1, wherein, The length of the third connecting line is 0.1m to 0.5m.

5. The connector according to claim 4, wherein, The length of the third connecting line is 0.1m.

6. The connector according to claim 4, wherein, The length of the third connecting line is 0.5m.

7. The connector according to claim 1, wherein, The connecting body includes a wire harness, and the first connecting wire is inserted into the wire harness.

8. The connector according to claim 1, wherein, The first connection component and / or the third connection component include a wire harness portion.

9. The connector according to claim 8, wherein, The outer surface of the wire harness is provided with a plurality of hollow holes that connect to the connecting hole.

10. The connector according to claim 1, wherein, The second insertion member and the third insertion member have the same structure.

11. The connector according to claim 1, wherein, The extension direction of the third connecting component is set at an angle of 30° to 150° with the extension directions of the first connecting component and the second connecting component.

12. The connector according to claim 10, wherein, The extension direction of the third connecting component is perpendicular to the extension directions of the first connecting component and the second connecting component.

13. The connector according to claim 1, wherein, The first connecting component and the second connecting component extend in the same straight line.

14. The connector according to claim 1, wherein, The length of the first connecting line is 1m to 5m.

15. The connector according to claim 1, wherein, The first insertion component is a female connector, and the second insertion component is a male connector.

16. The connector according to claim 1, wherein, The first and / or second insert includes a first layer and a second layer, the first layer having a higher hardness than the second layer, the first layer covering at least a portion of the second layer, and the first connecting wire being inserted into the first layer.

17. A cable assembly, wherein, The connector includes any one of claims 1 to 16, wherein the first insertion member and the second insertion member disposed adjacent to each other in two adjacent connectors cooperate with each other.

18. The cable assembly of claim 17, wherein, It also includes an extension cable that connects between the first and second inserts of two adjacent connectors, and the extension cable is connected to the connector located at the far end.

19. A photovoltaic system, wherein, The device includes an inverter, a combiner box, and a cable assembly as described in any one of claims 17 to 18, wherein the inverter is connected to the connector, and the combiner box is connected to the first insertion part of the connector located at the far end.

20. The photovoltaic system according to claim 19, wherein, The inverter includes a fourth connector, which is connected to the cable assembly via the fourth connector. The fourth connector has the same structure as the first connector.

21. The photovoltaic system according to claim 19, wherein, The inverter is a micro inverter.

22. The photovoltaic system according to claim 19, wherein, It also includes a mounting rail, to which the inverter is fixedly connected, and at least a portion of the cable assembly is fixed on the mounting rail, wherein the extension direction of the first connecting line is the same as the extension direction of the mounting rail.

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