Connector, cable assembly and photovoltaic system

Abstract

A connector (11), comprising: a connection body (300); a first connecting assembly (100), which comprises a first connecting line (110) and a first plug-in member (120), the first connecting line (110) being connected to the connection body (300) and located on one side of the connection body (300), and the first plug-in member (120) being connected to one end of the first connecting line (110) away from the connection body (300); and a second connecting assembly (200), which comprises a second plug-in member (220), the second plug-in member (220) being located on the other side of the connection body (300), and one of the first plug-in member (120) and the second plug-in member (220) being a male plug and the other being a female socket adapted to the male plug.

Description

Connectors, cable assemblies and photovoltaic systems

[0001] Related applications

[0002] This disclosure claims priority to Chinese patent application number 2023114269065, filed on October 31, 2023, entitled “Connector, Cable Assembly and Photovoltaic System,” which is hereby incorporated by reference in its entirety. Technical Field

[0003] The present disclosure relates to the technical field of connectors, and in particular to a connector, a cable assembly, and a photovoltaic system. Background Art

[0004] With the rapid development of new energy technologies, solar energy, with its advantages of being pollution-free and sustainable, is increasingly being applied in people's production and daily lives. Generally, solar energy can be converted into electrical energy through photovoltaic power generation technology. Specifically, the direct current generated by photovoltaic power generation is converted into alternating current (AC) through an inverter. This AC power is then fed into the power grid through a connector. However, traditional connectors often have drawbacks such as inconvenient installation.

[0005] Summary of the Invention

[0006] A technical problem solved by the present disclosure is how to improve the convenience of connector installation.

[0007] A first aspect of the present disclosure provides a connector, comprising:

[0008] Connect the main body;

[0009] a first connecting assembly, comprising a first connecting line and a first inserting piece, wherein the first connecting line is connected to the connecting body and is located on one side of the connecting body, and the first inserting piece is connected to an end of the first connecting line away from the connecting body; and

[0010] The second connecting component includes a second plug-in component, which is located on the other side of the connecting body. One of the first plug-in component and the second plug-in component is a male connector and the other is a female connector that can be adapted to the male connector.

[0011] A second aspect of the present disclosure provides a cable assembly, comprising a plurality of connectors described above, wherein the first insert and the second insert adjacently arranged in two adjacent connectors cooperate with each other.

[0012] A third aspect of the present disclosure provides a photovoltaic system, comprising an inverter, a combiner box, and any one of the above-mentioned cable assemblies, wherein the inverter is connected to the connection body, and the combiner box is connected to the first plug-in component of the connector located at the endmost end.

[0013] The details of one or more embodiments of the present disclosure are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the invention will become apparent from the description, drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to better describe and illustrate the embodiments and / or examples of the inventions disclosed herein, reference may be made to one or more of the accompanying drawings. The additional details or examples used to describe the accompanying drawings should not be considered to limit the scope of the disclosed inventions, the presently described embodiments and / or examples, and any of the best modes currently understood for these inventions.

[0015] FIG1 is a schematic diagram of a planar structure of a connector provided in an embodiment.

[0016] FIG2 is a schematic diagram of a planar structure of a photovoltaic system provided by an embodiment.

[0017] FIG3 is a schematic diagram of the planar structure of a photovoltaic system provided by another embodiment.

[0018] FIG4 is a simplified circuit diagram of a photovoltaic system provided by an embodiment.

[0019] FIG5 is a schematic diagram of a partial structure of a photovoltaic system with mounting rails provided in yet another embodiment.

[0020] FIG6 is a perspective structural diagram of a connector provided in an embodiment. DETAILED DESCRIPTION

[0021] To make the above-mentioned objects, features, and advantages of the present disclosure more clearly understood, specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present disclosure. However, the present disclosure can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without violating the scope of the present disclosure. Therefore, the present disclosure is not limited to the specific embodiments disclosed below.

[0022] In the description of the present disclosure, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0023] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this disclosure, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0024] In this disclosure, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise expressly limited. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on the specific circumstances.

[0025] In this disclosure, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions appear, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, the phrase "above," "above," and "above" a first feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. The phrase "below," "below," and "below" a first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0026] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may 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 may be directly connected to the other element or there may be an intermediate element. If any, 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 embodiment.

[0027] Referring to Figures 1, 2, and 3, a connector 11 provided in one embodiment of the present disclosure can be applied to photovoltaic power generation technology. The electrical energy generated by the photovoltaic module 50 is input into the inverter 20 in the form of direct current. The inverter 20 converts the direct current from the photovoltaic module 50 into alternating current. The converted alternating current by the inverter 20 can be input into the combiner box 30 through the connector 11. The combiner box 30 is then connected to the power grid or directly powers AC loads, thereby applying the electrical energy generated by photovoltaic power generation to various social life and production activities. It will be understood that in a specific embodiment, the number of photovoltaic modules 50, inverter 20, and connector 11 is equal and forms a one-to-one correspondence. The connector 11 includes a first connecting component 100, a second connecting component 200, and a connecting body 300. The connecting body 300 is connected to the inverter 20. In a specific embodiment, the combiner box 30 includes a distribution switch and a gateway controller.

[0028] Referring to Figures 1, 2, and 3, in some embodiments, the first connection assembly 100 includes a first connecting wire 110 and a first plug-in component 120. The first connecting wire 110 is connected to one end of the connection body 300, and the first plug-in component 120 is connected to the end of the first connecting wire 110 away from the connection body 300, so that the first plug-in component 120 is located on one side of the connection body 300. In one specific embodiment, the second connection assembly 200 includes a second plug-in component 220. The second plug-in component 220 can be directly connected to the other end of the connection body 300, so that the second plug-in component 220 is located on the other side of the connection body 300. In another specific embodiment, the second plug-in component 220 is directly connected to the other end of the connection body 300 via a connecting wire. One of the first plug-in component 120 and the second plug-in component 220 is a male connector and the other is a female connector, and the male connector and the female connector are compatible. For example, the first plug-in component 120 can be a female connector and the second plug-in component 220 can be a male connector. 1, 2, and 3, in other embodiments, the second connection assembly 200 may further include a second connection line, the second connection line being directly connected to the other end of the connection body 300, and the second insert 220 being connected to the end of the second connection line away from the connection body 300. The first insert 120 may be a male connector, and the second insert 220 may be a female connector.

[0029] If the first plug-in component 120 and the second plug-in component 220 use male or female sockets at the same time, when the two connectors 11 need to be connected, the two connectors 11 cannot be connected directly, and an intermediate connecting component needs to be used to connect the two adjacent connectors 11, which increases the number of connector terminals. It takes more time to perform the plug-in action of the connector during installation. On the one hand, this makes the installation of the two connectors 11 time-consuming and laborious, which is not conducive to the convenience of installing the connectors 11, thereby reducing the work efficiency of the installation of the connectors 11. On the other hand, if the two connectors 11 are normal but the intermediate connecting component fails, the two connectors 11 will not work properly, thereby increasing the failure rate. On the other hand, the existence of the intermediate connecting component will make the entire connection structure more complicated and increase the manufacturing cost of the entire connection structure. The connector provided by the present invention uses the least number of connector terminals, and there is no need to crimp the cable connection wires on site. It can save labor time when manually installing the cables on site, thereby improving wiring efficiency.

[0030] Referring to Figures 1, 2 and 3, for the connector 11 in the above embodiment, since one of the first plug-in component 120 and the second plug-in component 220 is a male connector and the other is a female connector, the male connector and the female connector can be adapted to each other. When it is necessary to connect two connectors 11, the first plug-in component 120 and the second plug-in component 220 can be directly matched to achieve direct connection of the two connectors 11, thereby eliminating the need for an intermediate connection component. On the one hand, this can eliminate the need for the installation of an intermediate connection component, thereby improving the convenience of installing the connectors 11 and ultimately improving the efficiency of installing the connectors 11. On the other hand, as long as the two connectors 11 do not malfunction, the normal connection of the two connectors 11 can be achieved, avoiding the impact of the normal connection of the two connectors 11 due to a malfunction of the intermediate connection component, thereby reducing the failure rate of the connection between the connectors 11. On the other hand, the elimination of the intermediate connection component can make the connection structure formed by connecting multiple connectors 11 simpler in structure, thereby reducing the manufacturing cost of the entire connection structure.

[0031] In harsh environments such as deserts, sand and dust can easily invade the interior of the threaded mating structure, causing the connector to become stuck, thus affecting the smooth connection of the connector. The connector with a plug-in structure provided by the present invention can be snapped together through the cooperation of the male and female connectors, thereby avoiding the problems caused by threaded connections and eliminating the obstruction caused by sand and dust on the connection of two adjacent connectors. In addition, compared with the threaded connection method commonly used in the prior art, the connector provided by the present invention does not require on-site crimping, and the snap-fitting is directly completed during installation, which not only saves installation time, but also reduces the risk of large contact resistance caused by inconsistent torque assembly brought about by threaded connections. It also avoids a series of risks caused by unprofessional on-site crimping tools that fail to meet the crimping quality standards.

[0032] Referring to Figures 1, 2, and 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 connection hole 311 is defined within the wire harness portion 310. The connection hole 311 extends axially along the wire harness portion 310, and the first connecting wire 110 is inserted into the connection hole 311. This allows the first connecting wire 110 and the connection hole 311 to form an interference fit, thereby achieving an interference fit between the first connecting wire 110 and the wire harness portion 310. In other embodiments, the wire harness portion 310 may be a claw structure that is sleeved onto the first connecting wire 110. Therefore, the wire harness portion 310 can prevent the first connecting wire 110 from bending, thereby facilitating the fixation of the first connecting wire 110. Furthermore, the harness portion 310 may have hollow holes 312 formed therein. The hollow holes 312 are distributed on the outer surface of the harness portion 310. The hollow holes 312 are through holes, connecting the connection holes 311 with the outside. The provision of the hollow holes 312 can reasonably enhance the friction between the first connecting wire 110 and the harness portion 310, further improving the connection strength between the first connecting wire 110 and the harness portion 310. Furthermore, material can be saved, thereby reducing manufacturing costs.

[0033] The wire harness portion 310 is roughly trumpet-shaped. From the second plug-in component 220 to the first plug-in component 120, the cross-sectional dimensions of the wire harness portion 310 can gradually decrease, so that the inner wall of the connection hole is roughly in the shape of a cone that converges inward. This allows the wire harness portion 310 to effectively restrain the first connecting wire 110 inserted therein. It also makes the wire harness portion 310 more flexible and tough. During the installation process of the connector 11, the wire harness portion 310 will swing back and forth. Given the better flexibility and toughness of the wire harness portion 310, the squeezing force generated by the reciprocating swinging wire harness portion 310 on the first connecting wire 110 at the connection between the two can be avoided, and the frequent swinging of the wire harness portion 310 can be prevented from damaging the insulation layer outside the first connecting wire 110. In fact, the part of the first connecting wire 110 that is subject to the greatest alternating oscillation stress is the connection between the first connecting wire 110 and the connecting body 300, that is, the location of the wire harness portion 310. By making the wire harness portion 310 more flexible and tough, the alternating stress at the connection between the first connecting wire 110 and the wire harness portion 310 can be reduced, preventing the alternating stress from causing fatigue cracks in the insulation layer of the first connecting wire 110. Of course, the hollow holes 312 can further improve the flexibility and toughness of the wire harness portion 310.

[0034] The first connecting assembly 100 may also include a cable harness 130, into which the first connecting cable 110 is inserted. This helps prevent the first connecting cable 110 from bending. The third connecting assembly 400 may also include a cable harness 430, which helps prevent the third connecting cable 410 from bending. The cable harness 130 of the first connecting assembly 100, the cable harness 430 of the third connecting assembly 400, and the cable harness 310 of the connecting body 300 may be identical in structure.

[0035] Referring to Figures 1, 2, and 3, in some embodiments, the connector 11 further includes a third connecting assembly 400, which is connected to the middle portion of the connecting body 300 and is used to connect to the inverter 20. This allows the AC power output by the inverter 20 to be input to the first connecting assembly 100 and the second connecting assembly 20 through the connecting body 300 via the third connecting assembly 400. The third connecting assembly 400 includes a third connecting wire 410 and a third plug-in component 420. The third connecting wire 410 is connected to the middle portion of the connecting body 300, and the third plug-in component 420 is connected to an end of the third connecting wire 410 away from the connecting body 300. The third plug-in component 420 is used to mate with the inverter 20. In other embodiments, the third connecting assembly 400 may include only the third plug-in component 420, thereby omitting the third connecting wire 410 and directly connecting to the middle portion of the connecting body 300.

[0036] In some embodiments, the extension directions of the first connecting assembly 100 and the second connecting assembly 200 can be located on the same straight line, and the extension direction of the third connecting assembly 400 can be arranged at an angle of 30° to 150° with the extension direction of the first connecting assembly 100. For example, the angle can be 30°, 50°, 60°, 90°, or 150°. When the angle is 90°, the extension direction of the third connecting assembly 400 is perpendicular to the extension directions of both the first connecting assembly 100 and the second connecting assembly 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.

[0037] In some embodiments, the connection position between the third connecting component 400 and the connecting body 300 is used as a reference position, and the distances from the first insert 120 and the second insert 220 to the reference position are unequal. This allows the first insert 120 and the second insert 220 to be asymmetrically arranged relative to the third connecting component 400, thereby increasing the flexibility of the connector 11 and thus improving the convenience of installing the connector 11.

[0038] 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. This can also ensure flexibility in the installation between the connectors 11, thereby improving the convenience of installing the connector 11. The length of the first connecting line 110 can be 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 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.

[0039] 1 , 2 , and 3 , in some embodiments, the connection body 300 includes a cable harness portion 310 disposed in the middle of the connection body 300. A connection hole 311 is defined within the cable harness portion 310. The connection hole 311 extends axially along the cable harness portion 310. A third cable 410 is inserted into the connection hole 311, forming an interference fit between the third cable 410 and the connection hole 311, thereby achieving an interference fit between the third cable 410 and the cable harness portion 310. Therefore, the cable harness portion 310 prevents the third cable 410 from bending, thereby facilitating securement of the third cable 410. Furthermore, a hollow hole 312 can be opened on the wiring harness portion 310, and the hollow hole 312 is distributed on the outer surface of the wiring harness portion 310. The hollow hole 312 is a through hole, so that the hollow hole 312 connects the connection hole 311 and the outside world. By setting the hollow hole 312, the friction between the third connecting line 410 and the wiring harness portion 310 can be reasonably enhanced, and the connection strength between the third connecting line 410 and the wiring harness portion 310 can be further improved.

[0040] In some embodiments, the second insert 220 and the third insert 420 have the same structure. During the manufacturing process of the connector 11, the second insert 220 and the third insert 420 can be formed using a mold with the same structure. This can reduce the design and manufacturing costs of mold development, thereby reducing the manufacturing cost of the connector 11.

[0041] 2 , 3 , and 4 , in some embodiments, the first connecting line 110 includes a neutral line 101 and a live line 102, and the third connecting line 410 also includes a neutral line 101 and a live line 102. The neutral line 101 of the first connecting line 110 is electrically connected to the neutral line 101 of the third connecting line 410 via the circuit structure of the connecting body 300, and the neutral line circuit within the second plug-in component 220 is electrically connected to the neutral line 101 of the third connecting line 410 via the circuit structure of the connecting body 300. The live line 102 of the first connecting line 110 is electrically connected to the live line 102 of the third connecting line 410 via the circuit structure of the connecting body 300, and the live line circuit within the second plug-in component 220 is electrically connected to the live line 102 of the third connecting line 410 via the circuit structure of the connecting body 300. Furthermore, the first connection line 110 may further include a ground line 103, and the third connection line 410 may also include a ground line 103. The ground line 103 of the first connection line 110 is electrically connected to the ground line 103 of the third connection line 410 through the circuit structure of the connection body 300, and the ground line 103 circuit in the second plug-in component 220 is electrically connected to the ground line 103 of the third connection line 410 through the circuit structure of the connection body 300. In other embodiments, for example, the first connection line 110 and the third connection line 410 each include two live wires 102, or for another example, the first connection line 110 and the third connection line 410 each may include two live wires 102 and a ground line 103.

[0042] Referring to Figures 1 and 6 , in some embodiments, the first insert 120 can be formed using a double-layer injection molding process. Specifically, the first insert 120 can include two layers of material, designated as a first layer 211 and a second layer 212. The first layer 211 has a greater hardness than the second layer 212, and the first layer 211 at least partially covers the second layer 212. For example, the first layer 211 can cover the second layer 212, such that a portion of the second layer 212 is located outside the first layer 211. Alternatively, the first layer 211 can cover the entire second layer 212, such that the entire second layer 212 is located within the first layer 211. The first connecting cable 110 is inserted within the first layer 211. By encapsulating the lower-hardness second layer 212 with the higher-hardness first layer 211, the wear resistance of the first insert 120 can be improved, thereby increasing its service life. Furthermore, the connection strength between the first insert 120 and the first connecting cable 110 can be enhanced.

[0043] Referring to Figures 1 and 6, in some embodiments, the second insert 220 can 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 can include two layers of material, which are respectively recorded as a first layer 211 and a second layer 212. The hardness of the first layer 211 is greater than the hardness of the second layer 212, and the first layer 211 at least covers a portion of the second layer 212.

[0044] Referring to FIG. 2 , the present disclosure further provides a cable assembly 10, comprising a plurality of connectors 11, which can be connected sequentially along a straight line. During the connection process, the adjacent first inserts 120 and second inserts 220 of two adjacent connectors 11 cooperate with each other, so the non-adjacent first inserts 120 and second inserts 220 of two adjacent connectors 11 do not form a mutually cooperating relationship. Since any two adjacent connectors 11 in the cable assembly 10 can be directly connected, the use of an intermediate connecting assembly is eliminated. This, on the one hand, eliminates the need for installing the intermediate connecting assembly, thereby improving the convenience of installing the cable assembly 10 and ultimately improving the efficiency of installing the cable assembly 10. On the other hand, as long as the connectors 11 do not malfunction, the normal connection of the cable assembly 10 can be achieved, avoiding the impact of the normal connection of the cable assembly 10 due to a malfunction of the intermediate connecting assembly, thereby reducing the failure rate of the cable assembly 10. Furthermore, the elimination of the intermediate connecting assembly can make the cable assembly 10 simpler in structure, thereby reducing the manufacturing cost of the entire cable assembly 10.

[0045] Referring to FIG. 3 , in some embodiments, the cable assembly 10 may further include an extension cable 12 . The length of the extension cable 12 may range from 0.5 m to 30 m, for example, 0.5 m, 1 m, 10 m, or 15 m. Given that the third connection assembly 400 is directly connected to the inverter 20 , under certain special operating conditions, the distance between two adjacent photovoltaic modules and / or inverters 20 may be large, resulting in a large distance between two adjacent connectors 11 connected to the two inverters 20 . This may prevent the first inserts 120 and second inserts 220 of the two adjacent connectors 11 from connecting due to the large distance. In this case, the extension cable 12 connects one end of the extension cable 12 to the first insert 120 of one connector 11, and the other end of the extension cable 12 connects to the second insert 220 of the other connector 11. This resolves the issue of the connectors 11 being unable to connect due to the large distance between the two connectors, thereby improving the adaptability of the cable assembly 10 to both conventional and complex installation environments.

[0046] In some embodiments, the extension cable 12 is connected to the connector 11 at the end. For example, the second plug-in component 220 of one of the connectors 11 at the end (e.g., the rightmost end) can be provided with a rubber plug for sealing and protection to achieve IP68 rating. The extension cable 12 can be connected between the first plug-in component 120 of the other connector 11 at the end (e.g., the leftmost end) and the combiner box 30.

[0047] Referring to Figures 2 and 3, the present disclosure further provides a photovoltaic system 40, which includes the aforementioned cable assembly 10, an inverter 20, and a combiner box 30. Obviously, the third connection assembly 400 of different connectors 11 within the cable assembly 10 is connected to different inverters 20. The DC power generated by photovoltaic power generation is converted into AC power by the inverter 20, and the AC power can be connected to the power grid through the cable assembly 10. The combiner box 30 is connected to the connector 11 at the end of the cable assembly 10, that is, the combiner box 30 is connected to the first plug-in component 120 of the connector 11 at the end. This also achieves the functional diversification of the photovoltaic system 40.

[0048] Referring to Figures 2 and 3 , in some embodiments, the inverter 20 includes a fourth insert 21, which mates with the third insert 420 in the connector 11 to achieve a connection between the inverter 20 and the connector 11. The fourth insert 21 has the same structure as the first insert 120. During the manufacturing process of the entire photovoltaic system 40, the first insert 120 and the fourth insert 21 can be formed using a mold with the same structure, thereby reducing the design and manufacturing costs of mold development, thereby lowering the manufacturing cost of the photovoltaic system 40.

[0049] Referring to FIG. 5 , in some embodiments, the photovoltaic system 40 may further include a mounting rail 41. The mounting rail 41 may extend in a straight line. The cable assembly 10 is secured to the mounting rail 41. The first connecting wire 110 extends in the same direction as the mounting rail 41. This prevents entanglement and interference between the first connecting wires 110 between two adjacent connectors 11, resulting in a simple and aesthetically pleasing design. This facilitates the orderly installation of the photovoltaic system 40 and improves assembly efficiency. The inverter 20 is fixedly connected to the mounting rail 41, allowing the mounting rail 41 to serve as a carrier for the inverter 20, ensuring stable and reliable installation of the inverter 20. The photovoltaic assembly 50 may be secured to the mounting rail 41. The third connecting wire 410 may be 0.1 to 0.5 meters in length, for example, 0.1, 0.2, 0.3, or 0.5 meters, to ensure a secure connection between the inverter 20 and the photovoltaic assembly 50.

[0050] In some embodiments, inverter 20 is a microinverter that can provide maximum power point control for photovoltaic panels 50, maximizing the AC power output by the microinverter, thereby improving the energy conversion and transmission efficiency of photovoltaic system 40. Furthermore, unlike the high-voltage DC power generated by centralized inverters, microinverters can generate low-voltage AC power that can be directly integrated into the power grid, thereby improving the safety of photovoltaic system 40 and the energy conversion and transmission efficiency.

[0051] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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.

[0052] The above-described embodiments merely represent several implementation methods of the present disclosure. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the patent disclosed herein shall be determined by the appended claims.

Claims

1. A connector, wherein: include: Connect the subject; A first connection assembly includes a first connection line and a first inserting piece, wherein the first connection line is connected to the connection body and is located on one side of the connection body, and the first inserting piece is connected to an end of the first connection line away from the connection body; and The second connection component includes a second plug-in component, which is located at the other side of the connection body. One of the first plug-in component and the second plug-in component is a male connector and the other is a female connector that can be matched with the male connector.

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

3. The connector according to claim 1, wherein: It also includes a third connection component, which is connected to the connection body and is used to cooperate with the inverter.

4. The connector according to claim 3, wherein: The third connection component includes a third connection line and a third plug-in component. The third connection line is connected to the middle part of the connection body, and the third plug-in component is connected to an end of the third connection line away from the connection body. The third plug-in component is used to cooperate with the inverter.

5. The connector according to claim 4, wherein: The first connecting wire and the third connecting wire both include a neutral wire and a live wire or two live wires, or the first connecting wire and the third connecting wire both include a neutral wire, a live wire and a ground wire, or the first connecting wire and the third connecting wire both include two live wires and a ground wire.

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

7. The connector according to claim 4, wherein: The connection body includes a wire harness portion, and the first connection wire is inserted into the wire harness portion.

8. The connector according to claim 4, wherein: The first connection assembly and / or the third connection assembly comprises a wiring harness portion.

9. The connector according to claim 8, wherein: A plurality of hollow holes communicating with the connection holes are formed on the outer surface of the wiring harness portion.

10. The connector according to claim 4, wherein: The second inserting member and the third inserting member have the same structure.

11. The connector according to claim 3, wherein: The extension direction of the third connecting component is arranged 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: An extension direction of the third connecting component is perpendicular to an extension direction of the first connecting component and the second connecting component.

13. The connector according to claim 1, wherein: The extension directions of the first connecting component and the second connecting component are located on 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 insert is a female socket, and the second insert is a male socket.

16. The connector according to claim 1, wherein The first and / or second insert comprises a first layer and a second layer, the first layer has a harderness greater than that of the second layer, the first layer covers at least a portion of the second layer, and the first connecting line is inserted in the first layer.

17. A cable assembly, wherein: The invention comprises a plurality of connectors according to any one of claims 1 to 16, wherein the first plug-in component and the second plug-in component adjacently arranged in two adjacent connectors cooperate with each other.

18. The cable assembly according to claim 17, wherein: It also includes an extension cable, which is connected between the first plug-in component and the second plug-in component of two adjacent connectors, and the extension cable is connected to the connector located at the end.

19. A photovoltaic system, wherein: The invention comprises an inverter, a combiner box, and the cable assembly according to any one of claims 17 to 18, wherein the inverter is connected to the connector, and the combiner box is connected to the first insert of the connector located at the endmost portion.

20. The photovoltaic system according to claim 19, wherein: The inverter includes a fourth plug-in component, the inverter is connected to the cable assembly via the fourth plug-in component, and the fourth plug-in component has the same structure as the first plug-in component.

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, the inverter is fixedly connected to the mounting rail, at least a portion of the cable assembly is fixed on the mounting rail, and the extension direction of the first connecting line is the same as the extension direction of the mounting rail.

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